Meltblown Non Woven Fabric Production Line

Meltblown Non Woven Fabric Production Line

Product Introduction:
The meltblown production line is mainly composed of the main body of the meltblown platform, the hot air system,the receiving network system, the electret system, and the slitting and winding machine.

1.Product Details

1）Model name:RP-1600 meltblown production line
Technical Parameters:
Equipment Dimensions 15*10*5M(L*W*H)
Linear Speed Setting ≤40 m/min
Daily Capacity Almost 1.5T
Rated Power 400Kw
Transformer Configuration ≥250KV
Model of production line:
Product specifications: working width 1600mm, areal density 10 ~ 30g / m2
Product fiber fineness: 1.5 ~ 5μm
Main technical parameters of meltblown
Raw material: MFI = 800 ~ 1500 polypropylene slice
Single-hole extrusion (ghm): 0.2-0.5
Melting temperature: 140 ℃ -300 ℃
Maximum melting pressure of spinneret: 20Bar Quantity: 70kg / h
Product specifications: working width 1600mm, areal density 10 ~ 30g / m2
Product fiber fineness: 1.5 ~ 5μm
Raw material: MFI = 800 ~ 1500 polypropylene slice
Single-hole extrusion (ghm): 0.2-0.5
Melting temperature: 140 ℃ -300 ℃
Maximum melting pressure of spinneret: 20Bar Quantity: 70kg / h

2）Model name:2400mm Meltblown Non Woven Fabric Production Line
Capacity : 3 – 6 Tons by 24 hours
Width of fabric : 2400 mm
Filter ratio : 95-99
Line speed : 40-80 m per min
GSM Range : 8~80 g/sq.m
Control mode : PLC programed + Touch Screen Man-machine interface
PLC : Omron or Siemens for optional
Touch screen : Siemens
Temperature control : RKC
Frequency Inverter : Huichuan or Siemens for optional
Low-voltage electric components : Schneider
Certificated : CE

3）Model name:3200mm Meltblown Non Woven Fabric Production Line
Capacity : 4 – 8 Tons by 24 hours
Width of fabric : 3200 mm
Filter ratio : 95-99
Line speed : 40-80 m per min
GSM Range : 8~80 g/sq.
Control mode : PLC programed + Touch Screen Man-machine interface
PLC : Omron or Siemens for optional
Touch screen : Siemens
Temperature control : RKC
Frequency Inverter : Huichuan or Siemens for optional
Low-voltage electric components : Schneider
Certificated : CE

2.Introduction to the composition of meltblown production lines、

Dryer	1 Set
02	Vacuum feeder	1 Set
03	EB single screw extruder	1 Set
04	Dryer	1 Unit
05	Meltblown  die	1 Set
06	Spinneret plate	1 Unit
07	Metering pump	1 Unit
08	Dual column & dual-position screen exchanger	1 Set
09	Dual-position hydraulic workstation	1 Set
10	Connector	1 Set
11	Auxiliary of meltblown	1 Unit
12	Web forming machine	1 Unit

3. Production process:

Slice storage trough → air flow conveying device → screw extrusion melting → filtration → metering →
die head → spinner (hot air) → laying net → static electret → coiling

4. Main technology parameter of extruder：

Width of Fabric	Meltblown Mold	Extruder Model	Speed M/min	GSM Range	Capacity tons/year	Filter ratio
EB-1600	M	Φ90	40-80	8~80 g/sq.m	750T	95-99%
	MM	Φ90×2	40-80	8~80 g/sq.m	1500T	95-99%
EB-2400	M	Φ120	40-80	8~80 g/sq.m	1100T	95-99%
	MM	Φ120×2	40-80	8~80 g/sq.m	2200T	95-99%
EB-3200	M	Φ150	40-80	8~80 g/sq.m	1500T	95-99%
	MM	Φ150×2	40-80	8~80 g/sq.m	3000T	95-99%

Application areas:

Continuous melt-blown nonwoven fabric production technology has experienced more than 20 years of development in China, and its application fields have expanded from the initial battery separators, filter materials, oil-absorbing materials and thermal insulation materials to medical, health, health care, protection and other fields. Its production technology has also developed from a single meltblown production to a composite direction. Among them, the melt-blown composite material subjected to electrostatic electret treatment can be widely used in the air of electronic manufacturing, food, beverage, chemical industry, airports, hotels and other places due to its characteristics of low initial resistance, large dust holding capacity and high filtration efficiency. Purification and medical high-performance masks, industrial and civil dust filter bags.

Eternal Bliss Alloy Casting & Forging Co, Ltd.
Technical Dept.
E-mail: sales@ebcastworld.com
what’s app:+0086-182 6227 4295

Caesar

www.ebcastworld.com

Radiation Tube Introduction

Radiation tube introduction

A radiant tube is a tube that extends in a straight line from the center in all directions. Refers to the non-central pipeline (or main pipe), which transports the substance of the main pipe to the designated or non-designated address. Radiant tubes are widely used in heating furnaces and are the main heating element of heating furnaces. The radiant tubes currently used are mainly divided into two categories: gas radiant tubes and electric heating radiant tubes. The thermal efficiency of the gas radiant tube is about double that of the electric heating radiant tube. Therefore, gas radiant tubes are the development trend of future radiant tubes.

Radiant tubes are widely used in heating furnaces and are the main heating element of heating furnaces. The radiant tubes currently used are mainly divided into two categories: gas radiant tubes and electric heating radiant tubes. The thermal efficiency of the gas radiant tube is about double that of the electric heating radiant tube. Therefore, gas radiant tubes are the development trend of future radiant tubes. Under the conditions of the modern market economy, the competition of radiant tube companies is becoming increasingly fierce. In order to increase market share, various companies have continuously improved radiant tubes. However, technological innovation is very difficult. To reduce the R & D cost of radiant tubes, the company's R & D personnel must accurately predict the development trend of the product, and adopt theoretical methods and tools to achieve product innovation and rapid design. Will do more with less.

The development of products and their technologies always follows certain objective laws, and the same rule is often applied repeatedly in different product technology areas, that is, the process of product improvement and technological change in any field is regular and all technologies can be followed. The creation and upgrading of the development are to the most powerful functions. TRIZ technology evolution theory is specialized in the evolution of technology systems. It has undergone three stages of traditional TRIZ evolution theory, TRIZ evolution theory development, and direct evolution theory. There are technology evolution theory (ET), technology evolution guidance theory (GTE), and direct evolution theory. Evolutionary theory (DE) and many other forms. TRIZ's theory of technological evolution is specialized in the evolution of technological systems. The theory of technological evolution reflects the important, stable and repetitive interactions between technological systems, components, systems and the environment during the evolution process, and each evolutionary law Each contains a different number of specific evolutionary routes and patterns.

Heating efficiency of radiant tube:

The heat energy of the heating furnace is generally provided by the combustion of combustible gas such as natural gas, but the harmful gas generated during the combustion of the combustible gas will destroy the environment required for the heat treatment in the furnace. Therefore, a radiant tube was invented to burn the combustible gas in the radiant tube. Thermal energy is radiated into the furnace by the radiant tube, so that harmful gases will not damage the environment in the furnace. But because the radiant tube heats the workpiece through the tube wall radiation, its heating efficiency is related to the efficiency of heat treatment, so the heating efficiency of the radiant tube is one of the main characteristics of the radiant tube. The earliest radiant tube was invented and used by Germany in the 1930s. Its structure is a single-layer straight tube type that passes horizontally or vertically through the furnace; U-shaped radiant tubes were not introduced until the early 1950s; For heating efficiency, W-type radiant tube was invented on the basis of U-type radiant tube; with the advancement of technology, P-type radiant tube, a typical type of radiant tube, appeared. In order to further improve the heating efficiency of radiant tubes, hemp surface radiant tubes were invented on the basis of various types of radiant tubes, the heating area of ​​which was increased by more than 30% compared to smooth surface radiant tubes, which greatly improved the heating efficiency of radiant tubes. This process basically evolves along two technological evolution routes:

1. The evolutionary path of geometric shapes:the shapes of subsystems and the shapes of subsystems and supersystems should be coordinated with each other. One of the evolutionary paths is the evolution of geometric shapes: straight lines → 2D lines → 3D lines → complex lines. Follow this evolutionary path to describe the evolution process of improving the heating efficiency of the radiant tube: The system is in the evolutionary 2D curve stage. The radiant tube can be designed as a 3D curve to improve the heating efficiency of the radiant tube, such as a radiant tube designed as a corrugated tube.
2.  Evolution of surface shape: smooth surface → convex surface → rough surface → active material. Follow this evolutionary path to describe the evolution process of improving the heating efficiency of the radiant tube: The system is in the stage of evolution with raised surfaces. You can increase the number of radiant tube surface protrusions or design the surface of the radiant tube as a rough surface to improve the radiant tube. Heating efficiency.

Uniformity of temperature distribution on the surface of the radiant tube:

The uniformity of the temperature distribution on the surface of the radiant tube is an important technical performance indicator for measuring the radiant tube. It affects the heating capacity, heating quality and service life of the radiant tube. At present, U and W-type radiant tubes are most widely used, so U-type and W-type radiant tubes are used as research objects.

The original radiant tube was only equipped with a burner at one end, and the temperature difference between the two ends of the radiant tube was large. In order to improve the uniformity of the temperature distribution on the surface of the radiant tube, a number of core blocks are arranged in the radiant tube. The core block fills the radiant tube with high-temperature gas, strengthens the convective heat transfer between the high-temperature gas and the tube wall, and the temperature at the tail is increased. Later, in order to improve the temperature uniformity of the radiant tube, burners were installed at both ends of the radiant tube, and the pulse combustion technology was used to improve the uniformity of the temperature distribution of the radiant tube. On the basis of pulse combustion, the uniformity of the temperature distribution of the radiant tube can be further improved by changing the combustion reversing time of the burner at both ends.

The uniformity of the temperature distribution on the surface of the radiant tube is closely related to the length of the flame. The initial burner can only perform one-stage combustion. Based on this, a two-stage burner is improved and designed. The control system can adjust the ratio of primary air and secondary air in the burner to effectively control the flame length. To improve the uniformity of the temperature distribution on the surface of the radiant tube.

The advent of regenerative combustion technology has greatly improved the temperature uniformity of the radiant tube. It was found through experiments that as the air preheating temperature increases, the maximum temperature difference on the surface of the radiant tube gradually decreases, and the temperature unevenness coefficient also decreases. There are two technological evolution routes in this process:

1.  Evolutionary path to supersystem: single system → dual system → multiple systems. According to this evolutionary route, the evolution process of improving the uniformity of the temperature distribution on the surface of the radiant tube (Note: the control system is changed to a heat storage body), the system is in the final stage of evolution.
2.  Frequency coordinated evolutionary path of a single object (flame): continuous motion → pulse → periodic action → increase frequency → resonance. According to this evolutionary path, describe the evolution process of improving the uniformity of the temperature distribution of the radiant tube. The system is in the cyclical stage of evolution, which can further improve the combustion cycle of the burners on both sides or develop in the direction of increasing frequency, such as increasing the burning on both sides The frequency of nozzles alternately burning to improve the uniformity of the temperature distribution of the radiant tube.

The number of radiant tubes used in the heating furnace is large and expensive. For example, a total of 128 radiant tubes used in an annealing furnace are priced at 37,000 yuan. If the service life of each radiant tube is increased by 0.5 to 1 year, a huge economy will be generated. benefit. Therefore, how to improve the service life of the radiant tube has great research value. The main factors affecting the life of a radiant tube are the material, structure and manufacturing process of the radiant tube, the combustion atmosphere in the radiant tube, the installation structure and maintenance, the uniformity of the temperature distribution on the surface of the radiant tube, the production process and the operation level.

Radiation tube service life:

Commonly used U-shaped or W-shaped radiant tube are relatively large in quality. In the process of use, under the combined effect of alternating thermal stress and their own mass, bending fatigue damage and creep deformation damage are prone to occur. In order to reduce the deformation of the radiation tube, a fixed support structure integrated with the radiation tube is provided at each elbow, and is supported on the furnace wall during installation. In order to adapt to the thermal expansion and cold shrink deformation of the radiant tube, an expansion joint is set between the outlet of the burner side and the furnace cover. Through the compensation of the expansion joint, the occurrence of cracks is avoided and the service life of the radiant tube is improved. At the same time, the fixed support at the elbow of the radiation tube was changed to a floating support, which further reduced the occurrence of cracks.

 

Eternal Bliss Alloy Casting & Forging Co, Ltd.
Technical Dept.
E-mail: cast@ebcastings.com
what’s app: 0086-13093023772
Caesar
[everest_form id="249"]

Durable Wear-Resistant Mill Hammer, We Save You Costs

Durable Wear-Resistant Mill Hamme

1. The bearing is too hot. Reasons: insufficient grease, too much grease; grease is dirty and deteriorated; bearings are damaged.
Exclusion method: Fill with appropriate amount of grease; the grease inside the bearing should be 50% of its space volume; clean the bearing; replace the grease; replace the bearing.
2. The discharge size is too large. Reason: The hammer head is worn too much; the screen is broken.
Remedy: Replace the hammer head; replace the screen.
3. The elastic coupling produces a knocking sound. Reason: the pin is loose; the elastic ring is worn.
Remedy: Stop and tighten the pin nut; replace the elastic ring.
4. Reduced production. Reason: The gap of the screen bar is blocked and the feeding is uneven.
Remedy: Stop and clean up the obstruction in the gap of the screen; adjust the feeding mechanism.
5. There is a knocking sound inside the machine. Reason: Non-broken objects enter the inside of the machine, the lining board fasteners are loose, the hammer hits the lining board, and the hammer or other parts are broken.

Method of exclusion:

6. Vibration volume suddenly. Reasons: When the hammer head is replaced or the static balance of the rotor is not satisfactory due to the wear of the cone head, the hammer head is broken, the rotor is out of balance; the pin is bent or broken; the triangle plate or the disc is cracked; the anchor bolt umbrella.
Exclusion method: Remove the hammer head, select the hammer head according to the weight, so that the total weight of the hammer on each hammer shaft is equal to the total weight of the hammer on the relative hammer shaft, that is, the static balance reaches the requirements, replace the hammer head; replace the pin shaft; electric welding Repair or replace and tighten anchor bolts.
The life of the wear-resistant mill hammer head is also related to the technical parameters of the crusher, the most important of which is the power and speed of the rotor body. These two parameters directly reflect the linear speed and impact force of the hammer head. They are not only related to the production capacity of the crusher, but also the degree of impact hardening of the hammer head. A hammer head with good impact hardening will definitely extend its service life. Rotor speed is too low, not only low production capacity, but also low kinetic energy, resulting in poor impact hardening of the wear-resistant mill hammer head, poor wear resistance; too high speed of the rotor, although the wear-resistant mill hammer head can get better impact hardening, equipment productivity increased. But at the same time, it will also cause strong wear of the wear-resistant mill hammer head, purlin and liner, which is also detrimental to the service life of the wear-resistant mill hammer head, and it will significantly increase power consumption. Therefore, a reasonable speed should be determined to increase the impact hardening degree of the wear-resistant mill hammer head at the beginning of work and reduce the wear of the wear-resistant mill hammer head.
Feeding conditions include: ①feed size and hardness; ②feed method of hammer crusher. The former is related to whether the crusher will produce material and the impact impulse when the hammer hits the material, while the latter will cause the drop of the material to the rotor due to different feeding methods, and it will also affect the impact impulse when the hammer hits the material. When the weight of the hammer head and the speed of the rotor are constant, the impact impulse of the hammer head is proportional to the material quality and the drop. The impact impulse is directly related to the degree of hardening and wear resistance of the hammer head. Therefore, the particle size of the large hammer crusher should not be too small, and the speed of the feeding equipment should be higher. In addition, the excessive moisture content of the material will also have a certain impact on the life of the hammer. If the water content is too high, the materials are easy to stick together and cause agglomeration, which will aggravate the wear of the wear-resistant mill hammer head.

Service life:

1. According to the design model, the feed size is appropriately controlled, and materials exceeding the maximum design size are strictly prohibited from entering the machine.
2. Select appropriate feeding equipment, such as plate feeder or vibrating feeder, to ensure uniform and stable feeding, and avoid impact on the equipment and invalid operation due to uneven feeding.
3. Due to the quality error of the hammer head during casting, according to the current situation, the wear-resistant mill hammer head should be turned down in time and turned according to the current situation, so that the wear-resistant mill hammer head wears evenly and the rotor runs in balance.
4. It is best to weigh when replacing the newwear-resistant mill hammer head. It is divided into several groups according to the mass, and the quality requirements of each group are equal. Otherwise, the rotor is unbalanced and easy to cause vibration when the machine is turned on.
5. When stopping, check the gap between the wear-resistant mill hammer head and the sieve bar, the sieve bar and the sieve bar, adjust if necessary, and replace the sieve bar regularly. Because the cost of the wear-resistant mill hammer head is higher than that of the screen bar, compared with the old screen bar, the hammer head can use 4-5 more shifts.
6.The hammer frame of the hammer crusher is made of cast steel and has less contact with the material, but when the metal object inside the crusher or the lining plate falls off, it is easy to cause damage or bending of the middle hammer disc. Drop, otherwise it is easy to lose the hammer and cause vibration.
7. Due to the impact of the material between the side hammer plate of the hammer frame and the side plate of the casing, the side hammer plate is relatively worn. Out wear layer.
8. Due to friction during operation, the shaft diameter at both ends of the spindle is easy to wear. When installing, two shaft sleeves should be added to the shaft diameter to protect the shaft diameter on the shaft.
9. Bearings should be repaired and withdrawn in time after wear. After the bearing is worn, the bearing should generally be scraped and ground according to the new size, and the thickness of the gasket should be adjusted to maintain a reasonable gap in order to form an effective lubricant film.
10. The power and speed of the rotor are not only directly related to the production capacity of the crusher, but also the degree of impact hardening of the hammer head.To extend the life of the crusher hammer head, it is also necessary to distinguish the material of the hammer head. For the hammer head, to ensure that it has a sufficient impact force, but for the high chromium small hammer head, it is exactly the opposite, it must be controlled to not have excessive impact.
11. It is necessary to regularly clean up the accumulated material in the crusher section. Because of the existence of the accumulated material, the crusher hammer head will be severely abraded and worn, which will drastically reduce the service life.
Caesar




Eternal Bliss Alloy Casting & Forging Co, Ltd.
Technical Dept.
E-mail: sales@ebcastworld.com
what’s app:+0086-1826 6227 4295


label:hammer head

Radiant Tube Hot Sale, High Cost Performance, Preferential Sale

Radiating Tube / Electric Heating Radiant Tube

The inner core of the radiating tube is composed of a resistance wire welded at the end of the U-shaped axial arrangement and a ceramic support frame. There is no shielding between the inner core and the outer protective sleeve, and the heat dissipation is good. The electric heating radiant tube with rated working temperature of 1000 degrees, the material of the resistance wire is Cr20Ni80 or 0Cr21Al6Nb, the surface working temperature can reach 1200 degrees, the maximum working temperature of the electric heating radiant tube with this material can reach 1000 degrees, and the support frame is high aluminum ceramic parts. The outer protective sleeve is a cold drawn seamless thin-walled heat-resistant steel pipe, and the material is 1Cr25Ni20Si2 or 1Cr25Ni35Si2. The material has good high-temperature oxidation resistance, high-temperature creep strength, and has a certain resistance to carburization. The radiation tube design and material selection safety factor Larger.The electric heating radiant tube with rated working temperature of 1200 degrees, the material of the resistance wire is 0Cr27Al7Mo2, and the surface working temperature can reach 1400 degrees. The maximum working temperature of the electric heating radiant tube with this material in a short time is 1250 degrees. The outer protective sleeve is a cold-drawn seamless thin-wall heat-resistant steel pipe, the material is Fe-Ni-Cr-Al-Re alloy, the material has ultra-high oxidation resistance, long-term work in an oxidizing atmosphere at 1300 degrees, short-term resistance at 1360 degrees Oxidation. Applicable to work in high temperature and low oxygen partial pressure and S, C environment.In addition to supporting the domestic heat treatment equipment manufacturers, the electric radiation tubes developed and produced by our factory can also be used to research and design and manufacture non-standard product heaters for users. According to the conditions of use, they can be divided into: heat-resistant steel seamless tubes and sheet rings Welded pipes, centrifugally cast pipes and non-metallic sleeves, etc.

Characteristics of high temperature electric heating radiant tube:
1. Manufacture of seamless cold-drawn heat-resistant steel pipes (maximum temperature is 1200 degrees) produced with high-quality raw materials
2. The inner core adopts the resistance wire U-shaped axially arranged end welding method
3. The resistance wire and the ceramic frame are basically unshielded, and the temperature difference between the resistance wire and the furnace chamber is small
4. The maximum working temperature is 1000 degrees or 1200 degrees
5. The biggest advantage of the radiant tube produced by our company is the use of seamless cold-drawn, thin-walled heat-resistant steel pipe (1Cr25Ni20Si2 or 0Cr25Ni20Si2). The thermal radiation of its products is 10% higher than similar products
6. Use more than 8000h

In the production process, our factory strictly controls the following
(1) Electric heating materials
The heating wire is required to have a high degree of heat resistance; the material has no impurities, no segregation, and strong oxidation resistance; during use, it does not deform, puncture, and has no leaks.

shop sign

Cr

Ni

AL

Mn

P

S

C

Fe

Cr20Ni80

20~23

margin

≤0.5

≤0.6

≤0.02

≤0.02

≤0.08

≤1.0

0Cr25AL5

23~26

≤0.06

4~7

≤0.07

≤0.02

≤0.02

≤0.06

margin

0Cr21AL6Nb

21~23

≤0.06

5~7

≤0.07

≤0.02

≤0.02

≤0.05

margin

0Cr27AL7Mo2

26~28

≤0.06

5~7

≤0.02

≤0.02

≤0.02

≤0.05

margin

(2) Refractories off
The refractory material is required to be corundum. During the operation of the radiant tube, it has high high-temperature strength and high-temperature insulation capacity, without cracking or leakage

performance	index
Refractoriness ℃	1650
Bulk density g / cm3	2.8-3.0
Apparent porosity/%	15-18
Thermal expansion /%	0.6-0.8
Thermal shock stability ℃ / water cooling	80

(3) Protection cover
The OCr25Ni20Si2 cover adopted by our factory has little deformation when the tube is locally heated, and it has no effect on the heating element and the working environment in the furnace. It has strong heat resistance and the normal use time is 6000 ~ 10000 hours, which is the domestic leading level.

Steel number	C	Si	Mn	P	S	Cr	Ni
1Cr25Ni20Si2		1.5-2.5	≤1.5	≤0.03	≤0.03	≥24.0	≥18.4

(4) Production process
During the straightening of the heating wire, there is no crack; during the welding process, the welding meat is full and smooth, without overheating segregation and virtual welding.
After a large number of customers use it, it has been confirmed that under normal operating temperature and load, the electric heating radiant tube produced by our factory is used in a variety of furnace bodies, and the use time is more than 8000 hours. The factory welcomes people from all walks of life to visit and guide, and is willing to discuss with colleagues in the industry and make progress together.
Radiation tube has the following advantages
(1) It can guarantee the controllability of the atmosphere in the furnace;
(2) Temperature control, installation and maintenance are more convenient and easy to seal;
(3) Since there is no muffle pot in the furnace, the furnace volume is enlarged and the production capacity is improved;
(4) Strong heating capacity and high efficiency;
(5) Saving heat-resistant steel.
Product use and maintenance
(1) Prohibit the use of excessive temperature and overload for a long time;
(2) When the furnace temperature is 400 ℃, rapid cooling is not allowed;
(3) Do not touch the radiant tube when loading and discharging;
(4) When the furnace is working, always pay attention to whether the traffic lights on the control panel are normal, and the traffic lights must be exchanged once after a period of time to keep the radiation tube burned due to the failure of the control switch;
(5) Pay attention to the working condition of the instrument at any time, and must analyze and process it in time when the furnace temperature and instrument indication are abnormal;
(6) For furnaces with a capacity of more than 100KW, it is better to install an ammeter for inspection in each heating zone. An ammeter should be installed for each phase of the three-chamber high-temperature electric furnace.
Second, maintenance
(1) After three to four months of use, draw out the radiant tube, pour out the dust in the radiant tube, turn the radiant tube 180 ° and use it;
(2) Pay attention to indicate the positive and negative poles of the radiant tube, and exchange the positive and negative poles once every three to four months;
(3) After pulling out the radiant tube, be careful when disassembling the binding posts, and do not hit or knock the lead rod;
(4) The bolts leading out of the terminal clamp are prone to oxidative loosening and should be checked and tightened regularly.

Common process elimination methods

Serial number	Fault phenomenon	cause	Method of exclusion
1	Component short circuit	1. The resistance wire is in contact with the steel pipe	1. The resistance wire should be annealed and wound tightly
		2. Improper transition of the resistance wire between the 2 core tubes	2. Adopt a reasonable transition method
		3. The heat-resistant core tube or porcelain plate is broken	3. Choose the material and be careful not to break it
		4. Too much oxide scale dropped at the bottom of the tube	4. Place refractory bricks at the bottom of the tube
			5. Within the scope of material size control
2	Broken core tube or porcelain tube	1. The quality of heat-resistant porcelain is not good	1. Pay attention to the quality of porcelain
		2. Flame contact with porcelain during gas welding	2. Avoid flame contact with porcelain
		3. Violent collision or vibration during installation	3. Avoid collision and vibration
		4. Excessive heating during use	4. Choose materials and improve structure
3	Radiation tube cracking	1. Bad welding materials	1. Welding materials are selected
		2. Improper welding operation	2. Welding according to specifications
4	Radiation tube deformation	1. The material of the radiant tube is not good	1. Choose the right materials
		2. Improper lifting or thermal stress deformation	2. Hang it correctly, and take measures in time if it is deformed
		3. Horizontal placement, improper force	3. When placed horizontally, there should be a support frame

1. The user should provide product drawings or samples. If there are no drawings or samples, the product specifications, models, voltage, power, length, diameter and other information must be provided;
2. According to customer needs, we can provide customers with design solutions.

Eternal Bliss Alloy Casting & Forging Co, Ltd.
Technical Dept.
E-mail: sales@ebcastworld.com
what’s app:+0086-1826 6227 4295

Caesar

Electric Heating Radiant Tube Radiant Tube Tube

Technical principle of frontal temperature gun

Technical principle of frontal temperature gun

1.       Appearance

A complete foreheadtemperature gun product is composed of three parts: shell, internal circuit board and battery (system power supply). We will not mention the shell, which belongs to the design category of structural engineers. The following focuses on the internal circuit composition.

From the structure diagram of the frontal temperature gun above, it can be seen that the circuit components are: LED display, infrared temperature sensor, battery, buttons, buzzer, etc.

2.       Block diagram of hardware structure

According to the above composition, we can draw a block diagram of the approximate hardware structure of the front temperature gun.

• Infrared temperature sensor: It is used to collect the temperature of the human body / object. The infrared forehead temperature gun is generally measured at a distance of 1 ~ 3cm from the forehead. The collected data is amplified by a signal amplification circuit. The signal amplification circuit is optional.
• MCU microprocessor: accept infrared temperature sensor data for processing, for analog sensors, need to add A / D conversion circuit to convert analog signals into digital signals, and then to MCU processing; for digital temperature sensors, you can Process directly to the MCU.
• Button module: used for mode switching, measuring objects, measuring forehead, measuring neck and other modes. The buttons can be customized, and can be used as a power-on button and a system reset button.
• LCD display: MCU control, used to display temperature data.
• Buzzer: Alarm module. The MCU sets a normal temperature range, such as 35 ~ 37.3 ℃. If it exceeds the upper limit or lower than the lower limit, the buzzer will alarm and the temperature is too low or too high.
• Crystal oscillator circuit: a clock used for MCU microprocessing to provide a source of oscillation.
• Battery: The battery is the main power source of the entire system. Because of the portability of the front temperature gun, it must be battery-powered. The most important thing is battery-powered products. The most important thing is low power consumption. When not working, the system needs to enter sleep mode to achieve Lower power consumption and extended battery life.
• Power management: The power supply voltage of modules such as infrared temperature sensor, display screen, buzzer, etc. is not necessarily the same. The battery needs to be converted to a suitable voltage value to supply power to each module. Of course, a rechargeable battery can also be used to add a charging circuit.

3.       Infrared temperature sensor

The front temperature gun is actually a single-chip processing system. The most important thing is the infrared temperature sensor module. The sensor also determines the accuracy of the measurement. The following introduces a commonly used infrared temperature sensor MLX90615. The MLX90615 is a digital sensor. No additional A is needed during development. / D conversion circuit, the highest precision can reach 0.2 ℃, because of its small size and convenient development, it is still used more now.

The small size reduces the space occupied by internal circuits and makes the product more portable

Operating voltage 3V, lower voltage means lower power consumption, power-down mode current is only 1.1uA, which means that the battery power consumption when the thermometer is not working is very small, this parameter is very important for battery-powered products .

Internal block diagram

Pin definition, support PWM and SMBus two modes

Summary

Any object above the absolute zero (-273 ℃) will emit infrared rays. The forehead gun receives infrared rays through the infrared temperature sensor to calculate the temperature data. The realization of the forehead gun is actually not difficult. Friends should be able to make their own implementation.

Goggles Selection Guide

Goggles Selection Guide

[Chinese Domestic Standard]

1.Medical safety goggles at level 2 or higher-Medical Safety Googles / Protective Eyewear, flexible to wear (compatible with myopia), anti-fog, wide field of view, must have splash-proof function, and cannot have vents

2. Doctor recommended model 3M 1623AF / 1621AF protective glasses (domestic); GA500 goggles (overseas)

3. Other goggles that meet Condition 1 are also available

[Foreign standards]

American National Standard ANSI Z87.1 – 2015 (American Standard for Facial and Eye Protection), Basic Guidelines

There is no more accurate medical standard for the time being, please also meet the requirements for elastic wearing (compatible with myopia), anti-fog, wide field of view, must have splash-proof function, and can not be equipped with vents.

Hot-Selling Masks Machine/ Help You Choose the Right Mask Machine

Hot-Selling Masks Machine

Automatic Cup Mask Machine Parameters:

Name: Automatic Cup Mask Machine
Power: 5Kw
Voltage: 220v
Weight: 500kg
Dimensions: 3500 x 1500 x 1800mm
Efficiency: 20-70 / pcs
Air pressure: 5kg / c㎡

Features of automatic cup masks machine:

1. The advanced servo and constant temperature control system adopted is controlled by PLC program so that the material can be entered, formed, welded, and punched at once, and the entire production process is fully automated.
2. The equipment only needs to be equipped with a fully automatic cup-shaped mask nose bridge ear strap welding machine, and can produce countless market-oriented cup-shaped mask products.
3. The products are exquisitely made and the quality completely meets or exceeds the domestic and foreign inspection standards. At the same time, it saves more than 30% of material than previous mask equipment. Thereby realizing cost reduction and improving efficiency.

All from n95 mask machine:

Fully automatic production of mask body machine, including feeding, plastic strip aluminum strip insertion / uncutting, scene selection, ultrasonic fusion, slicing and other full-automatic processes, the output is extremely high, which can produce 1-200 pieces per minute. The main power frequency conversion speed regulation, can be fast or slow, using different materials can produce different masks, the product has two or three layers, and the product quality is stable, easy to operate, low noise and small footprint. Applicable material: Spunbond filament non-woven fabric, 16-30 g / m2 suitable for processing disposable masks

n95 cup mask machine

Hot-press molding: The mask material (non-woven fabric) is molded in the form of over-heat pressing (cup-shaped).
1. Including automatic material returning action and feeding frame:
2. Forming four masks each time.
Slicing: used to make the outer layer (protective layer) of the cup-shaped mask. The special alloy steel material is used to make the flower wheel. The knife edge is wear-resistant and has a long life. The product is eccentrically adjusted, flexible, fast and high level. Using ultrasonic and special steel Wheel processing, without damaging cloth edges, without preheating when manufacturing without burrs, and continuous operation
Crimping: Laminating the inside and outside of the mask
Trimming: Use pneumatic punching to cut off the excess edges of the mask.
Breathing valve welding: welding mask breathing valve
Welding area: 130mm
Speed: 20-30 pieces / min
The integrated structure of the fuselage adopts safety adjustment scale control; the computer is intelligently controlled with an accuracy of up to one-thousandth of a second; the mold level is adjusted automatically.
Earband spot welding machine: Speed: 8-12 pieces / min can be used for welding flat, inner earband / outer earband, standard mask, duckbill and other special-shaped masks. After the mask body is made, the ear straps are welded manually

Plane mask machine
The ultrasonic inner earband mask machine uses ultrasonic welding. When the mask is moved to the processing position, the ultrasonic waves are automatically generated, forming a small amplitude and high frequency vibration on the earband, and instantly converted into heat, melting the material to be processed, and finally making the ear It is permanently pasted or embedded in the inside of the mask body. It is the last processing step in the production of inner ear band masks.
Only one operator is required to place the mask body piece by piece in the mask tray.
Work process: (mask body) manual feeding → automatic ear belt feeding → ultrasonic ear belt welding → non-woven side belt feeding and wrapping → ultrasonic side belt welding → side belt cutting → finished product output → counting → finished product stacking → conveying With device

Folding mask machine

Folding mask machine, also known as C-type mask machine, is a fully automatic machine for the production of folding mask bodies. It uses ultrasonic technology to bond 3 to 5 layers of PP nonwoven fabric, activated carbon and filter materials, and cut out the folded mask The body can process 3M 9001, 9002 and other mask bodies. Depending on the raw materials used, the masks produced can meet different standards such as FFP1, FFP2, N95, etc. The earbands are elastic non-woven fabrics, which make the wearer's ears comfortable and stress-free, and the filter cloth layer of the mask has good filtering effect and perfect It fits the Asian face shape and can be applied to highly polluting industries such as construction and mining.

Functions and features:

1. It can process 3M 9001, 9002 and other folding mask bodies in one process.
2. PLC automatic control, automatic counting.
3. Simple adjustment device, easy to change materials.
4. The mold adopts the extraction and replacement method, which can quickly replace the mold and produce different types of masks.

Duckbill mask machine

The automatic ultrasonic duckbill mask machine (duckbill mask making machine) is a machine that uses the principle of ultrasonic seamless welding to produce duckbill masks for highly polluting industries. The body part of the mask of this machine can use 4 ~ 10 layers of PP non-woven fabric and filter materials (such as: meltblown cloth, activated carbon material, etc.), which can produce mask products with various filter levels up to N95, FFP2, etc. Moreover, this machine has a very high degree of automation. From feeding to finished products, it is a single line of automatic operation: automatic feeding of raw materials, independent nose line conveying system, and the nose line can be automatically wrapped in non-woven fabric and automatically folded. And the finished product is cut, and the breathing valve hole can be automatically attached. The finished product produced by this duckbill mask machine has beautiful appearance; the machine has stable performance, high output, low defect rate and easy operation.

Features of duckbill mask machine:

1. Automatic feeding system
2. Folding system
3. Ultrasonic heat sealing system
4. The performance of the whole machine is stable, the production speed is continuously adjustable, the production efficiency is high, up to 60 pieces per minute, the counting is convenient and accurate, the raw material utilization rate is high, the operation and adjustment are simple and convenient, the degree of automation is high, and the labor cost is effectively reduced.

Bandage mask machine

The ultrasonic mask strapping machine adopts ultrasonic welding method, and a conveying device is provided on the machine table. The semifinished product of the mask is input to the conveying device, passes through the drawing tube, and is pressed by the ultrasonic flower wheel, then the strap is cut off to output the finished product. One person is required to place the mask body on the conveyor belt of the machine, and the rest of the subsequent work will be completed automatically.

Ultrasonic mask strap machine features:

1. The frame is made of aluminum alloy and stainless steel, which is light and beautiful and does not rust.
2. Automatic counting can effectively control production efficiency and production schedule.
3. Frequency conversion control, which can adjust the running speed of the equipment according to actual needs.
4. Pull the tube into the material and position more accurately, which can control the width of the raw material to a minimum and save costs.
5. Uniform control of finished product length and size, deviation ± 1mm, can effectively control finished product length.
6. The equipment has a high degree of automation and low requirements on the operation staff. It only needs to unwind and sort the finished products.
7. This machine adopts ultrasonic Taiwan system and Japanese transducer with stable performance and convenient operation.
8. The automatic ultrasonic welding wheel is made of imported high-quality steel DC53, which prolongs the service life of the mold and is durable and wear-resistant.

External ear mask machine

The outer ear band mask machine fuses the elastic band on both sides of the mask body by ultrasound to complete the ear band mask product. Only one operator needs to place the mask body piece by piece on the conveyor belt jig, and the rest of the subsequent actions until the finished product All are automatically operated by the machine, and the output of this machine is higher than that of the general earband machine.

Ultrasonic outer ear mask machine parameters:

Machine size: 2646 (L) * 620 (W) * 1750 (H) m / m
Voltage: single phase 220V
Output: 45-55pcs / min
Air pressure: 6kg / cm2
Power consumption: 3KW
Mask body size must be fixed

Ultrasonic outer ear mask machine features:

1. The machine is dense, small in size and does not occupy space;
2. PLC program control, high stability and low failure rate;
3. The whole machine adopts aluminum alloy structure, which is beautiful and firm without rust;
4. Photoelectric detection to reduce the error rate.
5. The welding strength of the ear strap is adjustable.

How to buy a mask machine

In modern society, due to the continuous deterioration of the natural environment and the strengthening of people's awareness of protection, the market demand for disposable medical masks and protective masks is constantly expanding. Many customers are keenly aware of this business opportunity and want to get involved in the industry of mask production. However, in view of the unfamiliarity with the mask production process, the purchase of mask raw materials, the selection of mask machine manufacturers, the planning of mask production workshops, the industry standards for mask production, etc., when inquiring and consulting relevant information and making relevant budgets, It seems blind and confused. The following are some common sense introductions to the ultrasonic mask machine to help customers who are ready to show their talents in the mask production industry to shine a little twilight in the mist and know the direction:

First of all: masks are simply divided into flat masks and three-dimensional masks in appearance. Flat masks are mostly used in the medical industry, and three-dimensional masks are mostly used for daily protection. This article is mainly for the purchase of ultrasonic plane mask machine (ultrasonic medical mask machine).

Secondly: The plane mask machine series can be divided into: inner ear band mask machine production line, outer ear band mask machine production line, and strap mask machine production line according to the different welding methods and usage methods of ear bands.


Eternal Bliss Alloy Casting & Forging Co, Ltd.
Technical Dept.
E-mail: sales@ebcastworld.com
what’s app:+0086-1826 6227 4295

Caesar

Keywords:Masks Mask Machine Automatic Cup Mask