2020年4月26日星期日

How To Clean Sintered Mesh

Five Layer Sintered MeshAmong them, the cleaning method is simple and time-saving, so as to achieve high reuse rate, which is a common concern of customers.Sinter net cleaning mainly has the following methods: ultrasonic cleaning method, baking cleaning method, backwater cleaning method and filtrate cleaning method.
Sintered Mesh
Sintered Mesh
Among them, ultrasonic cleaning method and reverse cleaning method is more common.
Reverse water cleaning (also known as backwashing) involves backwashing an inert gas (such as nitrogen) in the opposite direction of normal filtration.As relatively smooth and easy to clean, especially suitable for backwashing.In addition, it is not removed from the filter during backwashing and can be cleaned directly in the filter.In order to perform ultrasonic cleaning, it needs to be removed from it and then cleaned with an ultrasonic cleaner.Ultrasonic cleaning has a significant impact on production efficiency compared to backwash, but ultrasonic cleaning is thorough and ensures that the filter unit is cleaned.
First, the chemical cleaning method is a common cleaning method for the acid and base cleaning solution, which can be used for cleaning and collection.
Then there is the ultrasonic cleaning method.Ultrasonic waves are waves of energy that can be continuously pressurized and expanded.When applied to a liquid, air pockets are formed, and continuously broken air pockets clean the sintered felt.This is the same principle as cleaning the sintered mesh with ultrasonic wave.
After a heat treatment cleaning method is performed, hair is usually washed when the chemical cleaning method does not work.Common heat treatment cleaning methods include vacuum pyrolysis, heating furnace, liquefaction bed and hot salt bath.
Which cleaning method to use depends on the company's own production conditions and filter equipment conditions.It should be noted that after cleaning, a bubble point test is required to check its integrity.Gender and measure pressure drop.
The Five Layer Sintered Mesh is the most widely used standard structure sintering network.Generally, it is a five-layer structure, which is divided into five parts: protective layer, filter control layer, dispersion layer, support skeleton layer and skeleton layer.The filtering precision of the filter material is uniform and stable, and the mechanical strength and compressive strength are high.The requirement of pressure strength and uniform filter size is the ideal choice of filter material.The filtration mechanism is surface filtration, and the mesh is smooth, so it has excellent backwash regeneration performance, can be reused for a long time, especially suitable for continuous automatic operation process, which is incomparable to any filter material.The sintered mesh material is easy to shape, process and weld, and can be processed into various filter elements such as round, cylindrical, conical and corrugated.
Five Layer Sintered Mesh
Five Layer Sintered Mesh
1. It has extremely high mechanical strength and compressive strength.Good machining, welding and assembly performance, easy to use.
2. The filter layer is in the second layer, which is well protected and distributed, and the filtration precision can reach the uniform filtration performance and ensure high stability.
3, the use of 316L material, with good corrosion resistance and heat resistance.It can be used for filtration of -200℃~480℃ and acid and base environment.
4. Excellent surface cleaning structure, good counter-current cleaning effect, good counter-current cleaning effect, reusable, long service life.(it can be cleaned by counter-current water, filtration, ultrasonic, melting, baking, etc.).

2020年4月20日星期一

Introduction Of Wire Mesh Products

We are a screen mesh manufacturer. For more than 20 years' experience, we have accumulated technique and manufacturing experiences. And now we are serving customers  from a wide range of industries from all over the world.
Sieve bend screen is mainly used in coal preparation plant and concentrator for pre dewatering, desliming, demineralization and grading slime recovery. It can also be used together with hydrocyclone to effectively grade, dewater, desliminate and demineralize fine materials. The screen machine is composed of a screen box with a 45 degree wrap angle and a 60 degree curvature radius of wi2030mm. Arc screen surface and screen frame adopt pivot structure, which can rotate 180 degrees and extend the service life of screen surface. The arc-shaped screen is turned from the feed box, screen box and screen machine base shaft to realize the position adjustment between the feed end and the discharge end, achieve uniform wear, extend the service life, and operate flexibly and conveniently. It has also been widely used in metallurgy, chemical industry and other industries.
Sieve Bend Screen
Sieve Bend Screen
Working principle: the dewatering principle of the arc-shaped shale shaker is to separate the slime water by the cutting effect of the sharp edge on the feeding side of the screen bar; the arc-shaped screen is divided into the vibration arc-shaped screen and the non dynamic arc-shaped screen according to the difference between the use occasion and the moisture content of the material. HS arc screen is overturned by feed box, screen box and screen machine base shaft, realizing the position adjustment of feed end and discharge end, achieving uniform wear, prolonging applicable life and flexible and convenient operation. It has also been widely used in metallurgy, chemical industry and other industries.
Multilayer sintered metal mesh is a new type of filter material with high mechanical strength and overall rigid structure, which is made of multilayer woven metal mesh by special lamination pressing and vacuum sintering processes. The mesh of each layer of wire mesh is staggered to form a uniform and ideal filtering structure, which not only overcomes the shortcomings of low strength, poor rigidity and unstable mesh shape of common wire mesh, but also can reasonably match and design the pore size, permeability and strength characteristics of materials.
Sintered Metal Mesh
Sintered Metal Mesh
Characteristic:
1. High strength and rigidity: it has high mechanical strength and compressive strength, good processing, welding and assembly performance, and easy to use.
2. Uniform and stable precision: uniform and consistent filtering performance can be achieved for all filtering precision, and the mesh hole does not change in use.
3. Wide application environment: it can be used for filtering in - 200 ℃ ~ 600 ℃ temperature environment and acid-base environment.
4. Excellent cleaning performance: the countercurrent cleaning effect is good, it can be used repeatedly and has a long service life (it can be cleaned by countercurrent water, filtrate, ultrasonic, melting, baking and other methods).

2020年4月14日星期二

Maintenance And Working Principle of Perforated Metal Filter Basket Strainer

We are a wire screen supplier. China Anping screen world is a large screen product wholesale market approved by the State Planning Commission. It covers an area of more than 600 mu, with a construction area of 160000 square meters. It has more than 980 domestic and foreign businessmen. In 2002, the market turnover reached 3.4 billion yuan. At present, it has become the largest silk screen product distribution center in China and even in the world, and the window of Chinese silk screen industry facing the world.

Wire Screen
1. The core part of the filter is the filter core. The filter core is composed of filter frame and stainless steel wire mesh, which is suitable for damage and needs special protection;
2. When the filter works for a period of time, some impurities are deposited in the filter core, at this time, the pressure drop increases, and the flow rate will decrease, so it is necessary to remove the impurities in the filter core in time;
Perforated Metal Filter Basket Strainer
3. When cleaning impurities, pay special attention that the stainless steel wire mesh on the filter element shall not be deformed or damaged, otherwise, the filter installed again, the purity of the filtered medium cannot meet the design requirements, and the compressor, pump, instrument and other equipment will be damaged;
4. If the stainless steel wire mesh is deformed or damaged, it shall be replaced immediately.
Working principle of filter basket strainer:
Filter Basket Strainer
When the filter is working, the water to be filtered enters through the water inlet, flows through the filter screen, and enters into the pipeline required by the user through the outlet for process circulation. The particle impurities in the water are trapped inside the filter screen. With such continuous circulation, more and more particles are trapped, and the filtering speed is slower and slower. However, the imported sewage still flows in continuously, and the filter hole will be smaller and smaller, resulting in the pressure difference between the inlet and outlet. When the large difference reaches the set value, the differential pressure transmitter transmits the electrical signal to the controller, and the control system starts the drive motor to drive the shaft to rotate through the transmission component At the same time, the blowdown port is opened and discharged from the blowdown port. When the filter screen is cleaned, the differential pressure drops to the minimum value, and the system returns to the initial filtering state, and the system operates normally. The filter is composed of shell, multiple filter elements, backwashing mechanism, differential pressure controller, etc. During operation, the turbid liquid enters into the lower chamber of the filter through the inlet and the inner chamber of the filter element through the diaphragm hole. It is an advanced, efficient and easy to operate automatic filtering device.

2020年4月8日星期三

The History of Wire mesh products

Hebei Anping is a famous wire screen town at home and abroad. It is the national wire screen research and development, production and marketing distribution base, and has the largest wire screen monopoly market in China - wire screen world. Its formation has gone through four stages: beginning, foundation, development and rapid development.
 wire screen2.png
First, in Ming Dynasty, there were workshops for weaving silk and mane tail Luo in Tang Bei of Anping.
Second, at the beginning of the 19th century, Xu Laoshan, a national industrialist, and song Laoting introduced silk screen weaving technology in Tianjin and Fengtian respectively, and Anping began to have wire mesh enterprises.
Third, after the victory of the Anti Japanese War, it recovered and developed. With the support of the party and the government, the state-owned Anping wire drawing factory was organized and built by industrialists Zhang Guanglin, Zhang Lianzhong, etc., laying a solid foundation for Anping wire mesh industry.
Fourthly, after the reform and opening up, Anping wire mesh industry group was established, and the wire mesh industry has developed rapidly.
The filter basket is made of wire mesh and is suitable for the liquid and gas materials in the domestic water in the production of petroleum, chemical industry, chemical fiber, light industry, metallurgy, electric power, construction, thermal power, water supply and drainage, water treatment, municipal engineering, etc. it can be installed on the pipeline to remove the large solid impurities in the fluid, so that the machine, equipment (including compressor, pump, etc.) and instruments can work and operate normally to achieve a stable process, Ensure the role of safety in production.
 wire screen1.png
The filter basket is mainly composed of connecting pipe, cylinder, filter basket, flange, flange cover and fastener. When the liquid enters the filter basket through the cylinder, the solid impurity particles are blocked in the filter basket, and the clean fluid is discharged through the filter basket and the filter outlet. When cleaning is needed, unscrew the screw plug at the bottom of the main pipe, drain the fluid, remove the flange cover, and then install it again after cleaning, which is very convenient for operation, use and maintenance.
Materials for production of filter basket: stainless steel wire mesh, stainless steel punching mesh, stainless steel steel steel plate mesh, stainless steel etching mesh, stainless steel plate, galvanized plate
Structure: inclined mouth type filter basket, flat mouth type filter basket.
Features and advantages of perforated metal filter basket strainer:

1. Withstand high pressure and large differential pressure changes
2. Woven or sintered metal screen optional
3. Cleanable and reusable
4. Four layer reinforced structure
5. Low temperature fusion welding of filter layer, no leakage
6. Large flow, low pressure loss