High-efficiency energy-saving high-pressure diaphragm filter press filtration process

The normal filtration process of the diaphragm filter press is the conventional feed pressure (0.6-0.8Mpa), and the conventional slurry pump (about 60 meters head) is formed into the filter cake and then the diaphragm is pressed by the tympanic membrane. The tympanic membrane pressure is 1.0Mpa, the water pressure is 1.5. Mpa), again reduce the moisture content of the filter cake, and finally the moisture content of the filter cake is 13-18%. The high-efficiency energy-saving quick-opening high-pressure filter press increases the feed pressure (1.2-1.5MPa), and the high-pressure pump slurry pump (quantity pressure 2.0Mpa) shortens the feeding time. After the filter cake is formed, the multi-stage centrifugal pump is used to make the diaphragm plate. The tympanic membrane pressure reached 1.5-2.0 MPa, and the water content of the filter cake was 9-12%. The control system adopts PLC fuzzy control, which is easy to operate and has a low failure rate. The pull plate system adopts the frequency conversion quick pull plate, which improves the number of hours of operation of the filter press. It is widely used electrolytic manganese, zinc electrolysis, electrolytic copper ore beneficiation pressure, slag dehydration section, to achieve a pollution-free, zero emission, recycling purposes; applied from the high pressure separator filter dyeing waste water, paper mill wastewater Treatment, the minimum moisture content of the filter cake has been less than 35%. Compared with the traditional belt filter press, the filter cake has the highest solid content rate of 2-3 times, the filter cake transportation cost is reduced by more than 1 time, and the filter cake can enter the power plant. direct combustion, heat 3 tons per 1 ton of coal cake corresponds to the real resource becomes sludge, sewage springs become completely replace the belt filter press, and brought substantial benefits to the user. The whole machine is fully automated, equipped with filter cloth online flushing system and electronically controlled valve instrumentation without manual intervention.

The high-efficiency energy-saving quick-opening filter press is used for dewatering sludge, steel, port, river and tunnel dredging sludge in steel mills. The output of single-stage single-time maximum filter cake can reach 20m3, the number of cycles can reach 2 times per hour, and the moisture content of filter cake is 30%. , to achieve the effect of the filter biscuit stack. The high pressure diaphragm filter press is applied to sludge and sewage treatment. The minimum moisture content of the filter cake has been less than 45%. Compared with the traditional belt filter press, the filter cake has a solid content of more than 2 times, and the filter cake transportation cost. Greatly reduced, the filter cake can be directly burned into the power plant, truly turning the sludge into a resource, turning the sewage into a clear spring, completely replacing the belt filter press, and bringing great benefits to the user.


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Dandong Huarui Fluid Machinery Co., Ltd , https://www.ddhrseal.com