Name: Powder sintered stainless steel, foam stainless steel
Filtration precision: 1 micron-100 microns
Thickness: 1.0mm 1.5mm 2.0mm 2.5mm 3.0mm 4.0mm 5.0mm
Metal stainless steel microporous sintered filter plate, stainless steel sintered filter plate, stainless steel filter material 1. Introduction: Stainless steel powder sintered filter material (including tube type and plate type) is made of 316L powder as raw material, which is sieved, shaped and sintered. filter element.
Porous elements of various shapes, structures, different particle sizes and porosity can be produced according to user requirements, such as: covers, caps, sheets, tubes, rod-shaped filter elements.
Stainless steel powder sintered filter material is a new type of filter material with broad development prospects.
2. Detailed information:
...Stainless steel powder sintered filter material (including tube type and plate type) is a micro filter element made of 316L powder as raw material, sieved, shaped and sintered by ao. High filtration precision, good air permeability, high mechanical strength, high material utilization rate, suitable for higher working temperature and thermal shock.
Widely used in water treatment industry, food industry, biological engineering, chemical industry, petrochemical industry, metallurgical industry and gas purification.
Therefore, the stainless steel powder sintered filter material is a new type of filter material with broad development prospects due to its high-tech material composition and special molding process.
3. Main performance:
1. High temperature resistance, normal use below 500 degrees Celsius.
2. High filtration precision, stable pores, can effectively remove suspended solids and particles, etc., excellent filtration precision-
Different, the purification effect is good.
3. Good air permeability and low pressure loss. High porosity, uniform pore size, small initial resistance, easy backflushing, online regeneration, easy cleaning, strong regeneration ability and long service life.
4. High mechanical strength, good rigidity, good plasticity, no need for external skeleton support protection, simple installation and use, convenient maintenance, good assembly, and can be welded, bonded and machined.
5. The pores are uniform, especially suitable for occasions with high uniformity requirements such as fluid distribution and homogenization.
6. Filtration precision: 1~65um.
7 No particles fall off, and do not cause secondary pollution of the original solution.
8. Good mechanical properties, low pressure difference, large flow rate, pressure filtration and suction filtration, and simple operation.
9. Good corrosion resistance, can be used stably 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 and other environments.
10. The forming process is good, and the overall length without welding can reach 1200 mm. Stainless steel powder products are formed at one time without cutting, and the effective utilization rate of raw materials is high, especially suitable for components with large batches and complex structures.
Fourth, the use of matters needing attention:
1. The stainless steel powder sintered filter element is a consumable item. Although it is more durable than other filter elements, care should be taken not to scratch it during cleaning and disassembly.
And touch, smash, fall and other phenomena to prevent man-made damage. It is strictly forbidden to use tools to apply force to the surface of the filter element.
2. Under normal circumstances, the filtrate is filtered from the outside to the inside of the filter element, and reverse filtration is not recommended.
3. When filtering, pressurize slowly to the required working pressure. It is strictly forbidden to open the valve to pressurize quickly. 4. The working pressure is less than or equal to 3MPa. When the filtration efficiency is lower than 50%, it should be backflushed with clean air or clean liquid in time.
5. When the stainless steel powder sintered filter element is backflushed and backflushed, it is generally backflushed with pure gas first, and the backflushing pressure is the working pressure.
1.2-1.5 times, each backflushing time is 3-5 seconds, after repeated operations 4-6 times, backwash with cleaning solution, backwash for 3-5 minutes, 2-3 times.
6. If the pressure loss of the filter element is still serious after the online backflushing and backwashing, it should be removed in time for cleaning.
Five, cleaning method:
The stainless steel powder sintered filter element can be regenerated and cleaned by physical and chemical methods according to the pollution situation and the chemical properties of the pollutants combined with the physical and chemical properties of stainless steel.
The main physical methods are: clean liquid backflushing, clean gas backflushing and ultrasonic cleaning. The chemical method mainly uses: dilute acid, dilute alkali, oxidant, surfactant, enzyme and other cleaning agents. The above methods can also be used interchangeably.
According to several common applications, cleaning methods are as follows:
1. For decarbonization and filtration in the pharmaceutical and chemical fields, backflushing and backwashing methods combined with ultrasonic cleaning are often used.
2. In the water production industry, because most of the water-insoluble salts and oxides retained on the surface of the filter element are soaked in 5% nitric acid, the cleaning effect can be achieved without ultrasonic cleaning.
3. Filtration of the original solution should be combined with the chemical properties of the pollutants, and the following methods should be used for cleaning.
(1) Alkaline washing: soak in 3-5% sodium hydroxide analytically pure solution for 30-60 minutes, the temperature is about 40 degrees, and it is best in an ultrasonic cleaning machine. After soaking, rinse the inside and outside with filtered deionized water or water for injection to neutrality, and measure the conductivity. Dry with pure air ≥0.4MPa pressure.
(2) Pickling: soak in 5% nitric acid solution for more than 8 hours, and the temperature is about 40 degrees. in an ultrasonic cleaner. After soaking, rinse the inside and outside with filtered deionized water or water for injection to neutrality and lateral conductivity. Dry with pure air ≥0.4MPa pressure.
(3) Organic pollutants can be cleaned with surfactants, and the cell debris pollution system combined with enzyme cleaning is more effective (food and beverages can be cleaned with high-concentration citric acid).
(4) The above methods can be used alone or alternately with each other. If conditions permit, the effect of combining with ultrasonic cleaning machine is good. Note: Frequent online backflushing (purified compressed air or filtered stock solution or clean water for online cleaning) can reduce the number of cleanings by the above methods.
Using good stainless steel powder as raw material, it is produced by high temperature sintering. Strong acid resistance, strong alkali resistance, high temperature resistance, high pressure resistance, large flux, can be cleaned and used repeatedly. It can be used for filtration of high temperature, high viscosity and highly corrosive liquids and gases.
Packing:1PCS
Warranty period: 120 days
On Apr 20, 2022 at 00:27:07 PDT, seller added the following information: