HYLQ series sintered felt dust filter
Principle structure of sintered felt dust filter cylinder
There are two kinds of sintered felt dust filter drum: single side sintered felt dust filter drum and double side sintered felt dust filter drum. Sintered felt filter cylinder is made of extremely fine metal fibers made of non-woven fabric, laminated and sintered at high temperature, and then rolled with extremely thin metal mesh. The sintered felt filter cylinder is composed of different pore size layers to form the pore gradient, which can control the high filtration accuracy and greater contaminant capacity. It has the characteristics of three-dimensional mesh, porous structure, high porosity, large surface area, uniform pore size distribution and so on. It can keep the filtration function continuously. Due to the above structure and characteristics, the stainless steel sintered felt can effectively make up for the weakness of metal blockage and fragility, can make up for the shortcomings of powder sintered filter products fragile, small flow rate, with ordinary filter paper, filter cloth can not be compared with the characteristics of temperature and pressure resistance, at the same time greatly strengthen the sintered felt in high pressure and high flow environment of the lack of mechanical strength. So the sintered felt dust filter cylinder is an ideal filter material with high temperature resistance, corrosion resistance and high precision, which makes up for the shortage of sintered felt.
The characteristics of sintered felt dust filter cylinder products
1. Large contaminant capacity, high filtration accuracy, slow pressure rise, long replacement cycle;
2. High porosity and excellent permeability, small pressure loss and large flow rate;
3. Corrosion resistance, high temperature resistance: acid, alkali, organic solvents, drugs and other corrosion resistance, can be used in 480℃ environment for a long time;
4. Easy to process, shape, welding;
5. According to user requirements, we can specially produce enhanced type, thickened type, reinforced mesh and other specifications.
The main use of sintered felt dust filter cylinder products
1) Chemical fiber and film industry: filtration and purification of polyester, polyamide, polyester and other polymer solutions, and production of melt filter element and textile parts filter layer;
2) Filtration and dust removal of various high temperature and corrosive gases in the fields of petroleum, chemical industry and metallurgy;
3) Filtration of various high temperature and corrosive liquids in petroleum and chemical industries;
4) Precision filtration of hydraulic oil and lubricating oil in machinery, ships, electric power, electronics, aviation, aerospace and other fields;
5) Clarification and filtration of various liquids in the pharmaceutical, biological and beverage industries.
Provisions and standards of sintered felt dust filter cylinder products
1. The filtration accuracy and contamination capacity shall be determined according to the provisions of GB/T18853-2002.
2. The bubble point pressure is measured according to GB/T5249.
3. Breathability measurement according to the provisions of GB/T5453, the pressure difference is 200Pa, the medium is air.
4. The determination of fracture strength shall be carried out according to the provisions of GB/T228.
Sintering felt dust filter cylinder cleaning
1. Forward cleaning refers to the cleaning method of cleaning agent or cleaning water from upstream to downstream of the membrane, and the process can be completed under slightly greater pressure than the filtered product.
2. Reverse cleaning refers to the cleaning method of cleaning agent or cleaning water from the downstream to the upstream of the membrane.
3. We do not recommend the use of reverse cleaning, especially terminal filters. The reason is that after reverse cleaning, impurities in the cleaning agent or cleaning water will remain at the downstream end of the membrane, which will contaminate the next batch of product.
Sintered felt dust filter cylinder products in use need to pay attention to what
1. High temperature alloy powder sintering filter is consumable. Although it is more durable than other filter elements, care should be taken not to scratch, bump, bump or drop during cleaning and removal to prevent human damage. Do not use tools to apply force to the surface of the filter element.
2. Under normal conditions, filtrate is filtered from the outside of the filter to the inside of the filter. Reverse filtering is not recommended.
3. When filtering, slowly press to the required working pressure. It is strictly prohibited to open the valve and quickly press.
4. When the working pressure is less than or equal to 50%, clean air or clean liquid recoil filtration efficiency should be used.
5. When the superalloy powder sintered filter element is backwashed and backwashed, it is usually backflushed with pure gas. The recoil pressure is 1.2-1.5 times the working pressure, and each recoil time is 3-5 seconds. Repeat 4 to 6 times to reverse wash the clean liquid, back wash 3-5 minutes, 2 to 3 times.
6. If backwash filter element, pressure loss is still very serious, should be removed in time.
