2020年5月28日星期四

How To Choose Stainless Steel Wire Mesh Products

Wire screen supplier to share with you: To choose wire screen products, we must first understand that stainless steel wire screen products are mainly distinguished and distinguished from three categories, namely wire diameter, mesh and length and width. Therefore, customers must have a starting understanding of the three goals of the product. Since there are more and more manufacturers of stainless steel wire mesh processing, it is difficult to ensure the quality of the product due to the large number of production.
Some bad factories sometimes cut corners and get illegal benefits. So let's brighten our eyes and learn more about the relevant silk screen knowledge, so that we can choose the real products. Stainless steel is a kind of high-strength anti-stainless steel. It is mainly used for harsh working conditions such as impact, kneading, and material wear.
 Cone Shaped Stainless Steel Mesh Sieve
 Cone Shaped Stainless Steel Mesh Sieve
The main damage methods are wear and tear, and some are cracked and deformed. There are three types of wear: the frictional wear of metal components touching and moving against each other; the abrasive wear of other metal or non-metallic materials impacting the metal surface and the erosion wear caused by the contact of active gas or liquid and metal. The wear resistance of wear-resistant steel depends on the material itself.
Anti-wear steels show different wear resistance under different working conditions. Both the material itself and the working conditions determine its abrasion resistance. Stainless steel wire mesh is a kind of screen developed by making full use of the abrasion resistance of stainless steel. It has outstanding abrasion resistance under certain industrial mines and is incomparable with other raw material screens.
Tips on stainless steel filter cleaning:
The stainless steel passivation film's corrosion-resistant screen looks thin. Due to the wear of the impact echo, gaps occur, which increases the chloride ion approach, forming a fierce corrosive solution, which accelerates the rate of corrosion response.
Therefore, the appearance of the stainless steel wire mesh strainer basket requires regular cleaning and protection in order to maintain a neat appearance and extend the service life. When cleaning the stainless steel screen, it is necessary to pay attention not to damage the cut surface, avoid the use of bleaching ingredients and abrasive washing liquid, steel balls, remove the cleaning liquid, and flush with clean water at the end of the cleaning.
The cone shaped stainless steel mesh sieve is dust. Simple shovel removes surface dirt and can be washed with soap or warm water. Stainless steel filters, labels, stickers, wash with warm water, weak detergent, adhesive ingredients, use alcohol organic solvents (ether, benzene) to scrub. The grease, oil, and lubricating oil of the stainless steel screen is contaminated. Wipe clean with a soft cloth, and then clean it with a neutral detergent or ammonia solution or use a special cleaning agent. The appearance of the stainless steel wire mesh with bleach and various acids was immediately washed with water, and then soaked with ammonia solution or neutral carbonated soda solution, or washed with warm neutral detergent.
The appearance of stainless steel screens is caused by excessive use of detergents or oils. Neutral detergents can be washed with warm water. Stainless steel screen appearance of dust, rust can be washed with 10% nitric acid or abrasive cleaners, can also be cleaned with special washing drugs.

2020年5月22日星期五

Type Of Wire Mesh (II)

Custom metal screen supplier introduces you to other types of wire mesh
1, hook mesh [inclined square net, diamond mesh] hook, the characteristics of weaving simple, beautiful and practical, the material has high quality low carbon steel wire, stainless steel, aluminum alloy wire, purposes: for the security of the court, green fence, river, construction, residential protection.Specification: 1/2 inch 1 2 inches, wire diameter: 2.2-4.06 mm.
2, ginning network (pre-bending forming network) weaving features: rolling before weaving, structure: single wave isolation bending, double wave isolation bending, locking bending, flat bending, bidirectional bending.Features: fixed structure, long service life, materials: black iron wire, white steel wire, lead wire, stainless steel wire.USES: mainly used in mining, coal yard and construction industry.Specification number of mesh: 1-21 mesh threads from o.5-4.8mm.
3, steel mesh, woven, characteristics: hardness, tensile force, wear - resistant and firm.The material is made of no. 45 steel wire rod drawn into no. 23 wire [0.61 mm] or above, used in mining, metallurgy, construction, medicine and other industries.Specification: 6-38 mesh, wire diameter: 0.61-0.132.
4, the conveyor belt network, its organizational structure shape has ordinary weaving, reinforcement weaving, segmented ordinary weaving.Materials: stainless steel wire, stainless steel wire, medium and low carbon steel wire, galvanized wire, nickel chrome wire, ferrochrome aluminum wire, polyester wire, application: used in petroleum, metallurgy, food processing, machinery, pharmaceutical, glass, printed circuit board equipment and other industries.
5, mining screen, weaving and point, rolling, welding, the material is stainless steel wire, used for coal mines, mines and other industries, the kind of seam screen, screen blue, garden screen.
6, oil vibrating screen mesh, stainless steel wire woven, characteristics of the acid and alkali resistance, high temperature resistance, abrasion resistance, used in oil shale shaker, specifications: mesh number 7-10.36-211 mesh, mesh 0.075 mm 2 mm, wire diameter 0.045 0.45 mm, with single hook vibrating screen cloth, double hook vibrating screen cloth, single layer, double vibrating screen cloth adhesive vibrating screen cloth.
7, Air bleed screen filter mesh, with wire hook weaving and become, the characteristics of good Air permeability, material has stainless steel wire, copper wire, galvanized iron wire, nylon yarn, use used in petroleum, chemical industry, metallurgy, machinery, pharmaceutical, ethylene synthetic ammonia industry, such as chemical fiber, automobile, environmental protection through steam pavilion absorbing evaporating filtering to remove of fog, foam, gas and liquid, and various kinds of particles in the Air.
8. Industrial filter cloth [non-woven fabric] is woven with silk thread, and the wire is woven with polyester, polyamide, vinylon and nylon silk thread, which is characterized by temperature resistance, acid resistance and alkali resistance. It is used in food, chemical industry, dye, ceramics, metallurgy, pharmacy, etc.The types are: polyester staple plain filter cloth, thickness 0.4-1.6 mm, strong acid resistance, weak alkali resistance;Polyester short twill press cloth, thickness 0.45-0.7 mm, strong acid resistance, alkali resistance;Polyester long fiber high strength press cloth, thickness 0.22-o. 62 mm, acid and slightly alkali resistant;Nylon strong silk filter cloth, thickness 0. I8-0.54mm, strong acid resistance, slightly alkali resistance: polypropylene long polyester high strength filter cloth, thickness 0.30o-0.5mm, strong acid resistance, strong alkali resistance: vinylon uniform fabric, thickness 0.45mm, strong acid resistance, weak base resistance: polyester polyester dust cloth, thickness 0.63-0.80mm, strong acid resistance, weak base resistance.
9, thorn rope, the earlier the spine cord is composed of twist plait, galvanized barbed wire, barbed wire, PVC now new products for the blade thorn rope, made from high strength steel wire core, made from a mix of galvanized sheet and stainless steel plate blade of block equipment, this network model is not easy to touch and can achieve excellent protective isolation effect, characteristics have a deterrent effect is good, beautiful, construction is convenient, economical and practical advantages.It is mainly used for the protection of garden, apartment, office, prison, post and so on.The types are linear blade gill net, spiral blade gill net, spiral cross blade gill net and blade protection net.
10, guardrail network, steel wire weaving, welding, the types are: 1, protective network, highway, iron road, airport, port, municipal construction, breeding, etc.;
2. Decoration net, parks, lawns, hotels, recreation grounds, wholesale markets, supermarket shelves, handicrafts, etc.
3. Construction network, used for building buildings and roads;
Its characteristic is firm and durable, do not rust, beautiful and easy, anticorrosive form has electroplating, heat plating, spray plastic, dip plastic and so on.
Stainless Steel Metal Filter Tube
Stainless Steel Metal Filter Tube
11, filters, paint is made of high quality stainless steel metal filter tube developed filter, filter, filter, and other industrial use melt filter, material with metal mesh, metal fiber, metal powder, chemical fiber, filter, filter cloth, etc.The structure forms are sheet, tubular, tubular, cup-shaped, folding, winding, line gap, candle type, frame, basket, box type, plate type and so on. Widely used in power, petroleum, chemical, metallurgy, machinery, textile, medicine, automobile, air conditioning and other industries screening and filtering.

2020年5月16日星期六

Type Of Wire Mesh (I)

Custom metal screen supplier shows you the types of wire mesh.
1. Tainless steel plain weave cloth: it is characterized by acid resistance, alkali resistance, high temperature resistance, abrasion resistance and tensile resistance, so it is widely used in the screening and filtration of petroleum, chemical fiber, rubber, tire manufacturing, metallurgy, medicine, food and other industries.Stainless steel plain, twill, contrast mat mesh to 2800 mesh, material has 302, 304, 304L, 316, 316L, 310, 340, from 0.02mm to 8mm, width up to 6 meters.
2, Wedge wire media retention filter nozzle : plain weave, or oblique woven, used in rubber, plastics, petroleum, chemical industry, food industry such as sieving and filtering, the material is high quality low carbon steel Wire, give priority to with Q195, square hole mesh number from 2 yard to 80 yard, and Wire diameter from 2.03 mm - o. 14 mm.Specification: 12x64xxo.023/0.0165[0.584 xo.419] 14x88xo.020/0.014 [0.508 xo.355] 24x110xo.014/0.011 [0.355 xo.254] 30x150x0.009/0.007 [0.228 xo.178] 40x200xo.005/0.0055 [0.178 xo.139]50 x250xo. 0055/0.0045 [XO 0.139. 114] 50 x280xo. 0055/0.004 [0.139 XO. 101]
3, copper mesh: brass mesh, copper mesh, phosphor copper mesh, with anti-corrosion characteristics, plain or oblique woven, used for a variety of particle powder, porcelain clay and glassware printing filter liquid, gas, etc.Brass mesh: 1-200 mesh, line orange grade: H96, H90, H85, H80, H70, H68, H65, H63, H62, H59;Red copper mesh: 1-60 mesh, wire brand [pure copper] : T1 - T3;Phosphor copper mesh 1-400 mesh, wire brand: qsn6.5-0.1,
QSN7.2-1.2.
4, hexagonal mesh: made of hexagonal mesh machined, with precise structure, uniform mesh holes, good corrosion resistance, durable and other characteristics.There are twist, twist, two-way twist, first braid after plating, plating after knitting.Used for building, petroleum, chemical industry, breeding, garden protection, food processing industry reinforcement protection and insulation, such as manufacturing cage, stone cage, isolation net wall, boiler cover, poultry fence, such as materials such as low carbon steel [distribution galvanizing and hot dip galvanizing, coated plastic, PVC coating, etc.].Color [green, white, gray, etc.]Paint, stainless steel, specification: 1/2 inch 1 2 inches, wire diameter :0.61-1.22 mm, mesh width: 0.914 m, 1 m, 1.5 m, 2 m.
5, electric welding network: electric welding network is made of high quality low carbon wire row welding, and then cold plating [electroplating] hot plating, PVC bag surface passivation, plasticizing treatment.The net surface is smooth, the mesh is even, the welding joint is firm, the local machining performance is good, stable, anticorrosion, corrosion resistance is good.Electric welding net is widely used in industry, agriculture, breeding, construction, transportation, mining and other aspects, such as machine protective cover, poultry fence, flower fence, window fence, access fence, egg basket and home office food basket paper basket decoration.
6, plate net: in the punch press with the mold stamping or with scissors refitted, in the knife edge on the cutting mold can also be made into plate net, can be divided into aluminum plate net, aluminum magnesium alloy plate, copper plate net, nickel plate net, steel plate net.Plate thickness of 0.5mm - 8mm, mesh shape diamond, square, round hole, triangle, fish scale hole, durable, beautiful generous, widely used in roads, railways, civil buildings, water conservancy and other construction, various machinery, electrical appliances, window protection and aquaculture.
7, punch net, punch on the press, there are round hole net (machine screen net) long hole 4 square hole, fish scale hole, nail hole.Its performance bending resistance, anti - aging, not easy to rust, net surface formation, smooth, durable, beautiful.It has a wide range of USES.It is used for filtering internal combustion engine, mining, medicine, grain sample screening, indoor sound insulation, chassis panel, audio panel and various ventilation equipment.Materials: low carbon steel plate, stainless steel plate, aluminum plate, aluminum magnesium alloy plate, copper plate.Coil thickness 0.2mm to 0.8mm, mesh 6-3mm;Plate 0.5 mm -3 mm, mesh 1-5 mm;Stainless steel plate 0.5 mm -2 mm, mesh 1- 5 mm: aluminum plate 0.5 mm -2 mm, mesh 1-4 mm.
8, nickel mesh: by plain, twill, bamboo flowers woven, its characteristics are high temperature [1000 degrees] acid resistance, alkali resistance, mainly used in the electric (caustic soda chemical industry and other industries.Specification: plain weave, twill 60xo.12.80xo.10.100xo.09, 140xo.07.160xo.065.180xo.06, 200xo.05.Sheet type 【 miromesh 】 12x68/0.55 xo.42 12x78/0.45 xo.35 20x0.30xo.19 20x120/0.30 xo.32.
9, window screening, woven into 1 [locking edge], 2 [rotary edge]. Divided into: enamel window screening, galvanized window screening, aluminum spray window screening, aluminum window screening, plastic window screening, glass fiber window screening, stainless steel window screening, plastic window screening, characterized by light weight, good toughness, corrosion resistance, good ventilation, easy to clean.Materials: low carbon steel wire, stainless steel wire, chemical fiber, aluminum and magnesium alloy wire, galvanized wire, pVc wire, purpose;Used for mosquito protection in hotels, public buildings and residential buildings. Specification: 10XIO, 12Xl2, 14X14, 16X16 18X18, 20X20, 24X24, 14x16.16x14.
Wire Mesh Filter Strainer
Wire Mesh Filter Strainer

2020年5月8日星期五

Do You Know The Difference Between Filters

Custom metal screen suppler share with you: Y-type filter: y-type filter is installed on the pipeline to remove solid particles in the fluid, so that the machinery and equipment (including compressors, pumps, meters, etc.) can work and operate normally, so as to stabilize the process and ensure safe production. When the liquid into the filter tube with a certain size of filter screen, the magazine is blocked, and clean filtrate is discharged by the filter outlet, when the need to clean, as long as the removable filter tube out, after treatment can be reloaded.
T-filter: t-filter is a small device that removes a small amount of solid particles from a liquid or gas and protects the device from working properly.The filter can be installed in the dc line or in the corner line. When the fluid into the filter tube with a certain size of filter screen, the impurities are blocked, and clean filtrate is discharged by the filter outlet, when the need to clean, as long as the removable filter tube out, after treatment can be reloaded.
Perforated Filter Basket Strainer: Perforated Filter Basket Strainer is installed on an oil or other liquid line to remove solids from the fluid and stabilize the operation of the machine (including compressors, pumps, gauges, etc.). Its filtration area is about 3~5 times of the import and export sectional area (also can use large cylinder, small cylinder diameter, multiplier will be higher), far more than the y-type, t-type filter filtration area.
Perforated Filter Basket Strainer
Perforated Filter Basket Strainer
Basket filter: perforated filter basket strainer is mainly composed of pipe, barrel, basket, flange, flange cover and fasteners.When the liquid enters the filter basket through the cylinder, the solid impurity particles are blocked in the filter basket, while the clean fluid is eliminated through the filter basket and through 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 put forward the filter core for cleaning.
Wire Mesh Cone Strainer Filter
Wire Mesh Cone Strainer Filter
Temporary Filter: also known as wire mesh cone strainer filter, is mainly made of steel ring, punch plate and Wire Mesh welding.Usually, two flanges are used for clamping, and can also be made into flange connection form. Can remove large solid impurities in the fluid, so that the machine and equipment (including compressor, pump, instrument, etc.) can work and operate normally, to achieve a stable process, to ensure the role of safety production. When the fluid enters the temporary filter with a certain specification, the magazine is blocked, while the clean filtrate can pass through the filter and enter the downstream pipeline. When cleaning is needed, the filter should be removed from the pipeline for cleaning. After cleaning, the filter can be reloaded for reuse.

2020年5月2日星期六

How To Choose The Right Screen

Wire mesh supplier for your introduction: wire is the most commonly used wire mesh material.Stainless steel, although relatively expensive, can be used in some PVC production lines or other occasions to avoid rust.Nickel alloy wire mesh is used to avoid corrosion by fluoropolymer or PVDC.
In general, mesh mesh (or the number of wires per inch) is 20 to 150 or more.The mesh of the screen is thick;The mesh of 40-60 mesh holes is relatively thin;80-150 mesh mesh is very fine.
The mesh of most silk screens is square, with the same number of wires in each direction.Dutch braiding USES thick wire in the horizontal direction and specifies an even number, for example, 32X120 /in(Lin =25.4mm).The netting made by Dutch braiding method can play the role of fine filtration without setting parallel mesh in the filter device.The diameter of the mesh with the same number of mesh holes is determined according to the diameter of the wire, it is not necessary to be exactly the same. For example, the 20-mesh mesh made of 24in row spacing and 0.02in diameter is made of metal wire, and the hole on each side is o.o-lin.However, for the 20-mesh mesh made of wire with row spacing of 30in and diameter of 0.01in, the sweat holes on each side are slightly larger (0.04in), because the filtration of fine wire is not thin enough and it is more likely to block (Lin =25.4mm).In general, the filter is installed as follows: the roughest strainer to the guard plate, while the thinnest strainer faces the extruder. For example, the strainer arrangement from the guard to the extruder may be 20 /40 /60 screens, as this arrangement prevents the strainer from blocking and "blowing" impurities into the opening of the guard.
If the thinnest mesh is 80 or more screens, to prevent the screen from being blocked by the rotating motion of the molten material or by large impurities, a coarse screen can be placed in front (such as 20 screens /100 screens /60 screens /20 screens).Because the device type looks the same from both sides, a symmetrical arrangement is sometimes used to ensure that they are not reversed (20 /60 /100 /60 /20).Some processors deliberately set the screen upside-down, allowing the coarse screen to filter the upper surface of the larger particles impurities.They believe this method allows more side melt to pass through and less decomposition of material upstream of the shield.
Steel Wire Mesh Strainer Basket
Steel Wire Mesh Strainer Basket
Stainless steel wire mesh strainer basket have high strength, will not produce deformation due to pressure changes, single wire woven lubrication appearance, easy to clean, can be repeatedly used, at the same time suitable for some high impurity content of liquid filtration, dust capacity, low initial resistance, strong fire performance. Long life, economic security, low operating cost; Heavy plate structure, change cumbersome peace, easy for users to operate;There are galvanized frame and aluminum frame for selection;Can be customized according to user demand, non - standard size of equipment.
custom wire screen application scope, food and beverage, beer, wine, fruit wine, yellow rice wine, fruit juice, beverages, dairy products, edible oil, condiments and other materials liquid fine (sterilized) filtration. Bioengineering and medicine: infusion water, pharmaceutical water, plasma and serum of biological products, various pharmaceutical intermediates, pharmaceutical raw materials, solvent filtration, CIP filtration, fermentation tank, yeast cultivation tank intake ventilation and other air sterilization filtration.Paint and ink: latex paint, paint materials and solvent filtration, printing ink, printing ink filtration. Paint and ink: latex paint, paint materials and solvent filtration, printing ink, printing ink filtration.Other industries: precision chemical, petrochemical, electronics, textiles, printing and dyeing, paper and other industries of various liquid purification filtration.

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).