Stainless steel powder sintered filter material A: The main properties of stainless steel powder sintered filter materials (including tube and plate) is 304.304L.316.316L powder as raw material, sub-screen, forming, sintering micro filter element. High filtration precision, good air permeability, high mechanical strength, high utilization of materials, suitable for higher operating temperatures and thermal shock. Widely used in pneumatic components, chemicals, environmental protection and other fields. Users can request the production of a variety of shapes, structures, different grain size, porosity porous element, such as: cover, cap, sheet, tube, rod filter elements. Thus stainless steel powder sintered filter material with its high-tech materials and special molding process, it has a unique and excellent performance: 1. High temperature at 500 degrees Celsius below normal. 2. Filter high precision, stable pores can effectively remove suspended solids and particulates, high filtration precision, good purification effect. 3. permeability, pressure loss. Porosity, pore size uniformity, low initial resistance, ease of cleaning, online renewable, easy to clean, strong regenerative capacity, long service life. 4. High mechanical strength, rigidity, plastic, without additional protection framework support simple to install and use, and easy to maintain, assemble, and can be welded, bonded and machining. 5. uniform porosity, particularly suitable for fluid distribution, the equalization process and other requirements of high uniformity occasion. 6. Filter Accuracy: 1 ~ 50μm. 7. No particle shedding, not to dope the formation of secondary pollution. 8. good mechanical properties, low differential pressure, flow, pressure filtration can be suction, easy to operate. 9. good corrosion resistance, can be stably used in nitric acid, sulfuric acid, acetic acid, oxalic acid, phosphoric acid, 5% hydrochloric acid, molten sodium, liquid hydrogen, liquid nitrogen, hydrogen sulfide, acetylene, water vapor, hydrogen, carbon dioxide gas environment. 10. The molding process is good, the overall length of up to 1200 mm without welding. Forming a stainless steel powder products, without cutting, high raw material utilization efficiency, maximize material savings, especially for large-volume, complex structure elements. Second, the main parameters of stainless steel powder sintered filter filtration precision porosity permeability maximum working pressure compressive heat resistance 0.5um-70um 20-50% 3-1300m3 / m3hkPa 3Mpa 500 ℃ 0.6Mpa three model specifications Diameter: Ф20mm - Ф200mm Length: L50-L1200 (can be customized on request) Thickness: 2mm above can be (other specifications can be processed) Filtration: 0.5um - 70um diameter stainless steel powder sintered filter plate: Ф5-Ф300 (mm) Thickness: 0.5 10mm filter precision: 0.5un-70um Material: 302 304 304L 321 316 316L 310S IV applications of stainless steel powder sintered filter powder sintered filter with its unique properties, can be widely used in the pharmaceutical industry, water treatment industry, food industry , biological engineering, chemical industry, petrochemical, metallurgical and industrial gas purification is a broad development prospects of the new filter material. Typical applications include: 1, chemical raw materials in the production process impurities filtration, carbon filtration materials and fine filter off. 2, security ultrafiltration water treatment, RO, EDI system filters. 3, the food and beverage drinks, fruit juice, wine, beer, vegetable oil, mineral water, soy sauce, vinegar, clarification and filtration. 4, the chemical industry, liquid products, liquid raw materials, carbon filter and precision filter off of pharmaceutical intermediates, superfine crystals, the catalyst was recovered by filtration, microfiltration and resin adsorption system after conducting oil, cleaning materials, filters, catalytic gas purification. 5, oil field and other areas of the reverse osmosis water filtration security filtering. 6, hot off the dye industry, charcoal, filtered off white persons. 7, the gas purification steam, compressed air, the catalyst was filtered. 8, medium purification and flow restriction pneumatic components, oil, fuel and hydraulic pneumatic systems, compressed air oil purification, oil filtration grit removal, nitrogen hydrogen filter, oxygen filter, bubble generator, floating Teng-bed, five gas distribution . Stainless steel powder sintered filter Note the use of a stainless steel powder sintered filter are consumables, although durable than other filter elements, but in the process of cleaning and disassembly should be careful not to scratch and touch, hit, throw and so on, to prevent human injury. Forbidden to use tool for filter surface force. 2, under normal circumstances filtrate filtered by the filter outside to inside, do not advocate reverse filtering. 3, filtered, slowly pressurized to the required operating pressure, non-instantaneous rapid pressurization valve open enough. 4, the maximum working pressure ≤3MPa. When the filtration efficiency of less than 50%, to promptly clean air or clean with liquid cleaning backwash line. 5, stainless steel powder sintered filter backwash when performing cleaning and general cleaning first with pure gas blowback pressure is 1.2-1.5 times the working pressure, each time 3-5 seconds blowback, repeat steps 4-6 After the second with a clean liquid backwash, backwash 3-5 minutes, 2-3 operating times. 6. After cleaning the filter backwash line, the pressure loss is still more serious, should be promptly removed for cleaning. VI. Stainless steel powder sintered filter of stainless steel powder sintered filter cleaning method according to the chemical nature of the pollution and contaminants in conjunction with the materialization of stainless steel, respectively, the use of physical and chemical methods for regeneration cleaning. Physical methods used mainly: clean liquid recoil, clean gas cleaning and ultrasonic cleaning methods. Chemical methods using: acid, alkali, oxidizing agent, surfactant, enzyme cleaners. All of the above methods may also be used interchangeably. According to several common applications, cleaning methods are as follows: 1, pharmaceutical and chemical fields off the charcoal filter to frequently used cleaning backwash method works best in conjunction with ultrasonic cleaning. 2, the system of the water industry, because the filter surface trapped more water-insoluble salts and oxides, generally with 5% nitric acid immersion, without ultrasonic cleaning, the cleaning effect can be achieved. 3, liquid filter, in conjunction with the chemical nature of the contaminant, the following methods were used for cleaning: (1) caustic: soaked with 3-5% of analytically pure sodium hydroxide solution for 30-60 minutes, the temperature about 40 degrees, in best ultrasonic cleaning machine. After soaking with filtered deionized water or water for injection and outside the red to neutral, measured conductivity. ≥0.4MPa pressure with pure air dry. (2) Pickling: with 5% nitric acid solution soak for more than 8 hours, the temperature is about 40 degrees. Best in ultrasonic cleaning machine. After soaking with filtered deionized water until neutral, side conductivity water or water for injection inside and outside. ≥0.4MPa pressure with pure air dry. (3) organic pollution can be combined with a surfactant cleaning, cell debris contaminated cleaning effect conjugating enzyme system better (food and beverages can be high concentration of citric acid wash). (4) Several methods can be used alone, can also be used interchangeably with each other. If the conditions, combined with ultrasonic cleaning machine best. Note: Always wash line cleaning (CIP with pure liquid or compressed air or clean water filtration recoil), using the above method can reduce the number of cleaning.