Steel belt type vacuum air-drying filtering machine

Abstract

The invention discloses a steel belt type vacuum air-drying filtering machine. The steel belt type vacuum air-drying filtering machine comprises a machine frame, and a driving roller and a driven roller pivotally arranged at two ends of the machine frame, a decelerating motor drives the driving roller to rotate, an endless metal braided mesh conveyor belt is wound around the driving roller and thedriven roller, the metal wire of the metal braided mesh conveyor belt is braided to form uniform arched protrusions at the outside and is flat at the inside, and the two side edges of the metal braided mesh conveyor belt are wrapped and sealed by elastic steel sheet strips; the horizontal section of a filter cloth is attached to the metal braided mesh conveyor belt and runs along with the progress of the metal braided mesh conveyor belt, a vacuum chamber is arranged on the machine frame and corresponding to the lower surface of the upper layer metal braided mesh conveyor belt, and the vacuumchamber is supported by two or more first hydraulic cylinders fixedly arranged on the machine frame, the vacuum chamber and the vacuum balance automatic liquid drainage tank communicate through a pipeline; and an air-drying device is arranged above the filter cloth and at the position corresponding to the back section of the vacuum chamber. According to the steel belt type vacuum air-drying filtering machine, the structure is simplified, lifespan is increased, noise is reduced, water content of a filter cake is reduced, and filtering effect is improved.

Description

technical field [0001] The invention relates to the technical field of solid-liquid separation equipment, in particular to a steel belt type vacuum air-drying filter. Background technique [0002] The rubber belt vacuum filter is a device that uses vacuum negative pressure as the driving force to achieve solid-liquid separation. Under the action of vacuum negative pressure (0.04-0.07MPa), the liquid in the suspension is sucked away through the filter medium (filter cloth), while the solid particles are trapped by the medium, so as to realize the separation of liquid and solid. Structurally, the filter section is arranged along the horizontal length direction, and can continuously complete operations such as filtering, washing, drying, and filter cloth regeneration. It has the advantages of high filtration efficiency, large production capacity, good washing effect, low moisture in filter cake, flexible operation and low maintenance cost. Widely used in solid-liquid separati...

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Problems solved by technology

[0003] The rubber belt and the grid plate on the rubber belt are indispensable and important parts in the rubber belt vacuum filter. However, since the rubber belt and the vacuum chamber adopt a sliding connection during the operation of the equipment, the rubber belt wears quickly, which affects the equipment. life

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