Saving money: high efficiency and quick opening diaphragm press filter

Sludge moisture content of the cake is often an important standard to measure the filter press sludge dewatering equipment such as good or bad, in today's various types of sludge dewatering equipment, swift diaphragm filter press can effectively reduce the water content of sludge, sludge dewatering effect is better than other kinds of sludge filter press. As follows, the filter press manufacturers in Zhengzhou peak from 4 aspects of rapid opening diaphragm filter press why can effectively reduce the sludge water content.

1 equipment structure analysis

(1) the feeding mode of the quick opening diaphragm filter press is both sides feeding. When the unloading is finished in the first cycle, it is found that there is a deposit in the central feed hole, and the mixture is mixed into the filter cake when the package is discharged, which affects the water content of the flotation clean coal.

(2) filter plate size quick open diaphragm filter press is 1500mm * 2000mm * 85mm, the composite filter dewatering, found in the test work, composite filter sticky coal, about 7 packs per cycle, if not clean, existing filter plate pressure is not tight, problems of environmental pollution and easy to show package of flotation concentrate water.

(3) the filter plate near the head plate is close to the air duct, while the central filter plate is relatively far away. During the blowing process, the wind pressure gradually decreases, and the filter plate in the middle part is unable to effectively remove the moisture of the flotation clean coal due to the insufficient wind pressure.

Structural modification of 2 diaphragm filter press

(1) the feeding mode of the quick opening diaphragm filter press is changed into unilateral feeding, which solves the problem of deposit in the central feeding hole when unloading, and reduces the influence of the accumulated material on the water content of the floating concentrate.

(2) the composite filter cloth is changed into a single filament filter cloth which has the advantages of large strength, easy blockage, easy deformation and uniform pore size, and is easy to clean and regenerate. Every 24h (or use downtime) to filter cloth washing, cleaning once, to ensure that the filter cloth pores are not blocked, timely inspection, replacement, repair damaged filter cloth, to ensure the integrity and recycling, reduce costs.

(3) by reducing the drainage holes at the ends of the filter plate, reducing the loss of high pressure air, so as to ensure the moisture of the filter cake in the middle will not be high due to the attenuation of wind pressure.

3 change of operation method

(1) the 1 feed was changed into 2 times feeding, that is, after feeding 300S, instead of pressing 20S, and then continued feeding, the 2 layers of coarse particles were formed in the filter cake, so as to reduce the moisture content of the cleaned coal.

(2) a high pressure air duct is added to the concentrate tank to blow and stir, so as to ensure the full mixing of the fine particles of the cleaned coal and keep the particle size even.

(3) the operation procedure of the quick opening diaphragm press filter is reformed in Zhengzhou Dingsheng, so that the press and blow can be carried out at the same time to ensure the loose dispersion of filter cake and increase its water permeability.

In addition to the rapid open diaphragm filter press, the new type of ultra high pressure sludge filter press launched in Zhengzhou heyday has a very significant effect in the deep dewatering of sludge. The sludge water content of the sludge cake treated by the ultra high pressure sludge filter press after dewatering is lower than that of the quick open diaphragm filter press, and the sludge treatment cost is lower than 10%. When customers choose the sludge filter press, we can pay more attention to the deep dewatering equipment of the sludge, so as to consider the long-term operation of the sludge treatment project.