What method is the polypropylene filter element used to clean, which is simple and time-saving, and thus achieve a high continuous utilization rate? It is a problem that customers pay attention to widely. The key to cleaning sintering mesh is as follows. The masses can choose according to their own specific conditions!
The cleaning methods of polypropylene filter elements are as follows: 1. Ultrasonic cleaning, 2. cake baking cleaning, 3. boat cleaning in reverse water, 4. leach cleaning.
Among them, ultrasonic cleaning and reverse boat cleaning are more extensive methods.
The reverse cleaning method is also called the reverse cleaning method, which is to reverse the N2 and other rare gases to all normal filtration. Because the holes of the burning net are relatively clean and easy to clean, it is especially suitable for backwashing. In the whole process of backwashing, it can be cleaned in the filter equipment immediately without removing it from the filter equipment. Ultrasonic cleaning must be removed from the filter equipment and cleaned by ultrasonic cleaning machine. Compared with the anti cleaning, ultrasonic cleaning is harmful to production and manufacturing * *, but ultrasonic cleaning is complete and can clean up the filter equipment.
Why the emulsion is produced by the filter element and gear oil of polypropylene filter element?
Common fault analysis: the residue such as water in gear oil will produce emulsification, and it is also very easy to emulsion in hard environment for a long time. There are many kinds of reasons for the water seepage of gear oil:
1. Due to the tightness of welding, flange and other tightness, the precipitation on the automobile oil tank permeates the vehicle tank.
2. The moisture in the air solidifies in the email box due to the alternation of cold and heat, and turns into water drops falling into the oil.
3. Because of the destruction of underwater concrete hydraulic system, water is brought into the oil by hydraulic cylinder. 4. Bring water to the whole process of cleaning, oil change and maintenance.
Common troubleshooting:
1. Drain the pipeline immediately, and propose to open the water inlet valve to the outside world before each work.
2. Try to reduce oil change in rainy days. If it is rainy, we should take some effective measures to avoid rain entering the car tank.
3. In rainy days, we should do well in the measures of moisture prevention.
Adverse effect: the mould of the emulsion of gear oil endangers the gear oil to show the working pressure under all normal conditions, which leads to insufficient driving force of the van filter press, which endangers production and manufacturing
If oil emulsification occurs accidentally, the glass fiber wire which uses the filter material of sintering net filter can cut off the oil bag and collect the water. Prevent the adverse effects of emulsification.
General classification of filter elements in sintering net
(1) Cylindrical filter element
It is mainly used for oil filtration, water filtration and gas filtration. It can remove solid particles in liquid or air extremely, and also has a strong organic chemical compatibility mode, which can be used to filter acid-base solvents. Besides, it has a strong amount of pollution, longer service life and less noise;
Sintering net filter element
(2) Calcination filter
The calcination filter has high pollution content, high porosity, long service life, strong ductility and impact toughness, filtration precision and strong permeability. It is an ideal filter element with high precision and high temperature natural environment. It is very suitable for high pressure backwash oil filter and ash removal in high temperature natural environment;
(3) Sintered mesh
The sintered mesh plate can be used as the raw material for decentralized refrigeration in high temperature natural environment, and can also be used as the filler raw material with steam body spread over or air flow conveying bed. It can also be used for high pressure backwash oil filter and widely used in aerospace, petrochemical, mechanical equipment, metallurgy industry and chemical plant;
(4) Sintering net filter plate
The sintering net filter plate is an ideal filter element which is integrated with filtration, cleaning and dry impetuousness. It is widely used in the pharmaceutical industry, high temperature in petrochemical industry, filter of etch liquid, various gear oil in mechanical manufacturing, filter of lubricating grease and the noise divider in explosion-proof device. In addition, it is also used in the fields of polyester, oil, food industry, chemical fiber, sewage treatment and steam filtration.
The advantages of high temperature ash removal and burning net filter
1. High temperature resistance
The high temperature ash removal and sintering net filter tube * * can reach 800 ℃ at high available temperature. Generally, the high temperature filtration is made of Nomex raw materials, * high temperature resistance is only 280 ℃, too high temperature causes the thermal deformation of filter bag, resulting in split and burning bag. In order to make the temperature less than 250 ℃, it is necessary to improve the huge cooling system. The decrease of temperature not only damages energy, but also causes the high-efficiency liquid phase of polymer material oil in the dust to separate out and paste the bag, which makes the dust remover equipment useless. Therefore, the high-temperature dust removal equipment is a good choice for purifying and treating high-temperature dust. It is not easy to produce bending deformation under high temperature standards, so as to ensure the smooth operation of dust removal equipment.
2. Long service life
The filter element of high temperature ash removal and sintering net is made of special calcined metal composite material, which has excellent wear resistance. Therefore, in general, the service life of the commodity can reach 3-5 years, which is 8-10 times the service life of cloth bags.
3. High filtration accuracy
Whether it is specific application or independent detection, only the design scheme is appropriate, and the supporting facilities and equipment are manufactured exquisite. The high temperature dust removal equipment can not only achieve the purification treatment provisions that can be achieved by the general bag filter, but also achieve the actual effect of the purification treatment that can not be achieved by the current bag filter.
4. Good corrosion resistance of Organic Chemistry
Even if the cloth bag has coating, it will suffer corrosion, which is often destroyed by strong acid and alkali corrosion or hydrolysis reaction; And when the cloth bag is installed, it must be fixed by the bag dragon. The main keel is made of metal composite material, which is very easy to be etched. The high temperature dust removal equipment is self supporting, without bone cage, and can maintain stable organic chemical reliability in most strong acid and alkali natural environment, and has high corrosion resistance.
5. Good regeneration
The ash removal circulation system of textile filter is completed by using anti direction cyclone according to the mechanical equipment effect of raw materials, and immediately vibrates the surface dust. Because of the friction between textile and support, continuous stretching and rolling will cause the textile to be destroyed too early. The filter uses the vibration analysis of the filter cloth of the filter instead of the filter press to achieve the purpose of reconstruction. Compared with the bag filter, especially under the high temperature standard, the service life of the high-temperature dust removal equipment increases significantly.
The filter tube of high temperature ash removal and burning net is the key of filter dust removal equipment. It has the characteristics of excellent high temperature corrosion resistance, anti blow ash removal, high opening rate, small original loss, high water flow of filter steam body and strong structure, which makes it have long service life.
6. Better economic returns
Bag filter often increases the cost of equipment and equipment for bag filter because of its short cycle, expensive equipment and equipment, high operation and maintenance costs and shutdown caused by maintenance. The advantages of high temperature dust remover are good filter material, simple machine and equipment, long life, no maintenance and so on, which makes the cost of ash removal far less than that of bag type dust remover.
A common way to damage the surface of stainless steel sintered screen
1. there is dust with other chemical elements on the surface of stainless steel or the attachment of particles of semi Orc metal material. In the wet and cold air, the condensate between the appendages and stainless steel connects them into a micro
The charge battery, which causes electrochemical corrosion and the protective film is damaged, is called electrochemical reaction.
2. the stainless steel surface adheres to organic compound liquid juice (such as melon, vegetable, soup, phlegm, etc.), and under the condition of ice oxygen, it forms organic matter, and the organic matter will etch the metal surface for a long time.
3. the surface of stainless steel is attached with acid, alkali and acid salt chemicals (such as edible alkali and lime slurry splashing on the wall surface of indoor decoration), which causes partial erosion.
4. in the air with environmental pollution (such as air with many sulphates, carbon oxide and sulfur oxide), hydrochloric acid, sodium cyanide and glacial acetic acid liquid point will be produced in case of condensate, which will cause chemical corrosion.
The above condition can cause the damage of the protective film on the surface of the stainless steel sintering filter plate and cause rust. Therefore, in order to ensure that the surface of metal materials is bright and free from rust, it is proposed that:
1. the surface of stainless steel for decoration design must be cleaned frequently, accessories removed and external elements causing decoration removed.
2. 316 stainless steel shall be used in beach area, and 316 material can resist sea erosion.
3. there are some stainless steel pipe components in the sales market that can not meet the corresponding national standards and can not meet the requirements of 304 materials.
