What is the whole process of applying diaphragm filter press in sludge?
Diaphragm filter press is a kind of excellent characteristics of industrial equipment, I must understand the diaphragm filter press. So do you know the whole process of applying diaphragm filter press in sludge? Let me introduce you in detail!
After entering the sludge, the high-pressure water is introduced into the diaphragm plate of the diaphragm filter press with a diaphragm pump, and the sludge is squeezed and dried according to the supporting force of the diaphragm. The leachate is discharged according to the filter press filter cloth, and the solid chemicals are blocked by the filter press filter cloth, resulting in dry matter with low water content.
The water content of sludge entering the diaphragm filter press should not be too high. As the water content of sludge is too high, it will not only improve the specification of sludge solution structure and the difficulty coefficient of sludge solution, but also continue to improve the total flow of sludge. If the magnetic pump should be fed within the specified time period, the output power of the magnetic pump will be increased. Increased functional loss. Generally speaking, the water content of the sludge before entering the filtration device should not be higher than 98%.
The volume of solid sludge solved by the diaphragm filter press has not changed for the most part, because the volume of the filter chamber is a numerical value. Taking a filter device with a total area of 800 m2 as an example, the volume of the filter device is 14 m3. In the course of one feeding, the allowable range of the specific solid sludge amount is 85%-99% of the solid sludge amount in the design scheme, but it cannot be less than the smaller value.
Because the diaphragm filter press is carried out after feeding, the diaphragm expansion is mainly carried out according to the introduction of high-pressure water into the diaphragm plate, and the sludge in the middle of the diaphragm plate is squeezed and dried according to the supporting force of the diaphragm. If the amount of sludge in the middle of the diaphragm does not achieve the design value, the area in the middle of the diaphragm will increase. Under the pressure of high-pressure water, it is very easy to squeeze the diaphragm and spray high-pressure water, thus causing safety accidents.
Diaphragm filter press diaphragm is generally composed of thermoplastic rubber, glass fiber fiber cloth and improve polypropylene, with heat resistance, high pressure resistance. If the reduced working pressure does not exceed a certain value, the membrane will not be easy to swell or open, and then endanger the actual effect of sludge dewatering. Therefore, the reduced working pressure should not be less than 1MPa.
