Porcelain Industry Waste Water Belt Filter Press

Porcelain Industry Waste Water Belt Filter Press

Porcelain Industry Waste Water Belt Filter Press for Mining Industry Urban Sewage Treatment LEABON Rubber vacuum belt filter press uses filter cloth as the media. It is a high-efficient separating equipment to separate the liquid from the solid by making full use of gravity and vacuum suction....

Product Details

Porcelain Industry Waste Water Belt Filter Press for Mining Industry Urban Sewage Treatment

LEABON Rubber vacuum belt filter press uses filter cloth as the media. It is a high-efficient separating equipment to separate the liquid from the solid by making full use of gravity and vacuum suction. It is widely applied in many fields, such as metallurgy, chemical industry, papermaking, food industry, pharmacy, coal washing, and environmental protection etc.

How does a vacuum filter press work?

Step1: Feed slurry is distributed continuously on the filter cloth.

Step2: Vacuum sucks the liquid into the vacuum box through the filter cloth, but the solid remains on the filter cloth.

Step3: The vacuum pulls air through the filter cake and continues to remove moisture from the filter cakeas the filter cloth moves forward.

Step4: The filter cake is washed  by the washing device to get rid of impurities. Additional drying of the filter cakes follows the washing.

Step5:  In the end, the filter cake is discharged from the filter cloth to a conveyor to the next process step.

Step6: The filtrate and air in the vacuum box flow through filtrate pipe and a gas-water separator. The filtrate thus is pumped to the next step in the process.


Vacuum belt filter press is widely applied in many fields, such as tailings,municipal sludge and industrial sludge, metallurgy, chemical industry, coal washing, and environmental protection etc.


1 Vacuum sealing:  vacuum belt filter press is equipped a fixed vacuum box, the rubber belt moves on the vacuum box, the water can be functioned as the lubricant as well as coolant, thus creating a good vacuum condition.

 2 Long service life of rubber belt:  in respect of support, this machine equipped with rollers, thus reducing the friction and extending the belt's service life.

 3 Easy to be installed and maintained:  the machine adopts modularized structure which can be dismantled easily.

 4 High efficiency:  the machine achieves continuous filtration, materials are kept in vacuum condition in the whole procession.

Working principle:

Vacuum belt filter press use filter cloth as medium. It takes advantage of gravity and vacuum section to achieve solid-liquid separation. It adopts ring shaped rubber belt as vacuum vessel. The ring shaped belt moves under the power of motor, and the filter cloth which wrapped on the belt also moves along it. The slurry is distributed uniformly on the filter cloth by the distributing device. Vacuum section will be formed on the rubber belt when the vacuum system begins to work. And liquid pass through the filter cloth under the power of subatmospheric pressure and gravity; solid material are stopped and forms cakes on the cloth. The liquid will be collected by the row liquid separator and can be reused. Cake will be discharged when the filter cloth separates from the rubber belt.

Structural features:
The vacuum belt filter is composed of a feeding device, a washing device, a filter cloth, a friction belt, a cleaning device, a rubber belt, a correcting device, a filtrate main pipe, a switching valve, a arranging separator, a washing pump, a vacuum pump and the like.

1. Modularized design: easy installation and transportation.
2. High auto degrees: Consecutive auto feeding, filtering, washing, dewatering, discharging, cloth cleaning improves production efficiency.
3. Convenient filter technology: cake thickness, water washing, counter current decantation stages, vacuum degree, filter speed can be adjusted for optimistic effect.
4. Fine decantation effect: even and thorough multi-stage advection or counter current decantation makes collection and reuse of mother liquor and washing liquor separately.
5. Operation:continuous, and fully automatic operation, filtration speed with frequency control.
6. Control system: PLC program fully automatic-controlled system , DCS remote interface to realize remote monitoring and operation 
7. The frame: made of high quality seamless square steel pipe (10#-12#) with sandblast and high strength fluorin-carbon finish, makes anticorrosive ability keep more than 8 years.
8. Rubber belt: supported by air cushion or water to reduce the resistance and is good to prolong service life of the rubber belt.
9. High quality bearing: with full airproof bearing seat, available to run more than 3 years.
10. Extrusion and transmission rollers: made of seamless steel pipe with anti-wearing rubber outside, valid to work more than 5 years.
11. The main body are made of stainless steel (304), including vacuum box, fender, flume, waterproof cover, muzzle and sheets, etc.

Application industry:

1. Chemical industry: alcohol, calcium carbonate, sodium sulfide,  synthetic resin, all kinds of monomer, active carbon, aluminum hydroxide, chromate, plastic, rubber industry additives, fungicide, ferric oxide, lead oxide, coating, dye and its intermediates, molecular sieve, catalyst, etc.
2. Fertilizer: slurry after calcium carbonate, phosphogypsum, nitrate of lime, calcium sulfate(NPK)and saltpetre phosphorus mothods.
3. Foods: calcium citrate, citric acid (in calcium sulfate), lactose, protein (potatoes), vegetable oil, cane sugar, calcium oxalate, bleaching earth oil, etc.
4. Medical: antibiotics, ammonium chloride, fluoride soda, enzymes, aperient, penicillin salt,  sedative, vitamin, etc.
5. Mining metallurgy:ilmenite,aluminium ore extraction, rare earth mineral lixiviate and extraction, aluminum hydroxide, alumina, rutile, carnallite,sylvite, copper slag, metal floatation concentrate, gold concentrate, red mud, gold precipitate, coal mud(coaly floatation and fines), etc.

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