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Russian Structure and Function of Main Parts of Vacuum Belt Filter
The vacuum belt filter is a highly efficient continuous filtering device, that is widely used in mining, the chemical industry, environmental protection, and other industries. Its main components include the following parts, each of which plays an important role in the operation of the equipment.
Rubber Belt
The cross-section of the rubber belt is groove-shaped. The upper part is used to support the filter cloth, and the lower part forms a vacuum chamber to provide a smooth drainage channel for filtration. The filtrate passes through the groove on the rubber belt and enters the vacuum box through the outlet hole in the center of the bottom of the rubber belt groove. Since there is a corrugated skirt on each side of the belt, the filter cloth forms a groove on it, which avoids the overflow of the filtrate.
When installing the equipment, be sure to keep the filter in a horizontal state. If the filter is not horizontal in the horizontal direction, it will cause uneven thickness of the filter cake, reduce the efficiency of filtering, washing, and extraction, and even affect the unloading of the filter cake and the deviation of the belt.
Vacuum Box
The drainage hole in the center of the rubber belt and the liquid collection port on the vacuum box are on the same line, and the filtrate enters the vacuum box through the rubber belt and then is discharged through the hose at the bottom of the vacuum box. The friction belt on the upper part of the vacuum box is made of wear-resistant and low-friction material, and the friction coefficients on both sides of the friction belt are different, ensuring that the friction belt runs with the rubber belt and avoiding wear of the rubber belt. In order to facilitate the replacement of the friction belt, the vacuum box can be adjusted up and down with bolts and nuts.
Feeding Device
The feeding device is mounted on a rotatable bracket. The structure of the feeding device ensures that the slurry is evenly distributed along the width of the filter. The position and angle of the feeding device are adjustable and will be positioned during the filter commissioning phase. When positioning, the position of the feeding device should not be too high to avoid splashing of slurry during feeding.
The feeding direction should be backward to make full use of the natural settling area between the rubber belt and the rubber baffle at the feeding end to optimize the particle distribution in the filter cake, thereby improving the filtration speed and quality.
Cake Washing System
The cake-washing system includes rubber plates to buffer the water flow and ensure that the washing water is evenly distributed on the surface of the filter cake. This ensures that the filter cake is evenly washed. The cake-washing device is as close to the feed end as possible.
Filter Cloth Deviation Correction Device
The automatic filter cloth deviation correction device consists of a deviation correction airbag and a deviation correction action valve. The mechanical valves are placed on both sides of the filter cloth. When the filter cloth deviates and hits the swing rod of a mechanical valve on one side, the side airbag corresponding to the deviation correction airbag is inflated, causing the deviation correction roller to swing forward or backward, thereby achieving the deviation correction purpose. When inspecting pneumatic components and pipelines, the air source must be cut off first.
Filter Cloth Tensioning Device
The filter cloth must be in tension to move forward normally with the rubber belt, and filtering, washing, and filter cloth regeneration can achieve the ideal effect. It uses the gravity of the tensioning roller to automatically tension the filter cloth.
Conclusion
These components work together to enable the vacuum belt filter to efficiently and stably complete the continuous solid-liquid separation process. In different application fields, the specific configuration of the equipment may be adjusted to meet the filtering needs of different materials.
