New solid-liquid separation equipment - rubber belt vacuum filter

Rubber belt vacuum filter, also known as fixed-belt vacuum filter, is a new type of solid-liquid separation equipment with a higher degree of automation. This type of equipment is generally composed of rubber filter belts, vacuum boxes, drive rollers, tape support tables, feed hoppers, filter cloth biasing devices, filter cloth washing devices, and racks. It is made full use of material gravity and vacuum suction to achieve High-efficiency separation equipment for liquid separation.

The rubber belt type vacuum filter uses a filter cloth as a filter medium and an integral annular rubber belt as a vacuum chamber. The endless belt is continuously operated by the motor dragging, and the filter cloth is laid on the belt to run synchronously with the belt. The belt is in sliding contact with the vacuum (the annular friction belt is between the vacuum chamber and the belt and water is sealed to form a water seal). The slurry is evenly distributed by the distributor. Ground cloth on the filter cloth. When the vacuum chamber is connected to the vacuum system, a vacuum filtration zone is formed on the tape. The filtrate passes through the lateral grooves on the tape and passes through the small holes into the vacuum chamber. The solid particles are trapped on the filter cloth to form a filter cake. The liquid entering the vacuum chamber is discharged through the air-water separator. As the rubber belt moves, the formed filter cake enters the filter cake washing area and the suction drying area in turn. Finally, the filter cloth is separated from the tape, and the filter cake is removed at the filter cake roll. The cake is unloaded. After removing the filter cake, the filter cloth is cleaned and then regenerated. After passing through a set of backup rollers and correcting device, it is re-entered into the filter zone and begins to enter a new filtration cycle. Compared with the mobile chamber type vacuum filter, the rubber belt type vacuum filter overcomes the disadvantages of removing the vacuum and high energy consumption in each process of the moving chamber type belt filter, and realizes a true continuous operation. , continuous filtration, material from the next feeding, vacuum dehydration, cake washing, slag removal to the filter cloth cleaning, can be synchronized without interruption.

The most prominent features of the rubber belt vacuum filter structure:

First, a fixed vacuum box is used, and the tape is moved on the vacuum box. An annular friction belt is designed between the vacuum box and the tape and sealed with water. The vacuum box and the tape form a movement seal structure. The sealing water can be used as a sealing device. Lubricants act as coolants again, forming a very effective vacuum seal.

The second is to use air-cushion or water-film support on the support of the tape. The tape floats on the air cushion or liquid film, which can effectively reduce the frictional resistance of the tape.

Third, in the overall structure, a removable frame structure is adopted to ensure the installation and maintenance of the annular adhesive tape and the maintenance of the equipment.

Rubber belt type vacuum filter is widely used and promoted in fine chemical industry, beneficiation, metallurgy, papermaking, food, pharmacy, environmental protection and other fields due to its high filtration efficiency, large production capacity, good washing effect, wide application range and simple operation. , And everyone agreed that the effect is good.