Vacuum pumping-type squeezing roller structure removing free water

Abstract

The invention relates to a vacuum pumping-type squeezing roller structure removing free water, which comprises a roller shaft, an end plate, a roller body, a rubber coating and a mounted bearing, wherein a plurality of keyway-shaped water troughs are uniformly distributed on the surface of the rubber coating in the axial direction; the end surface of the roller shaft is provided with a plurality of axial water through holes that are uniformly distributed along the circumferential direction; the circumferential surface of the roller shaft is provided with a plurality of radial water through holes that have the same size and the same amount with the axial water through holes and are crossed and communicated with each axial water through holes respectively; a water pipe is arranged between each radial water through hole of the roller shaft and each water trough of the rubber coating so that the radial water through hole is communicated with the water trough one-to-one correspondingly; and a vacuum pumping component is arranged at the axial water through hole of the roller shaft. In the invention, one vacuum pumping component that can be connected with the external vacuum equipment pumps the free water that flows into the internal water hole after being squeezed, thus improving the squeezing dehydration rate.

Description

technical field [0001] The invention relates to a squeeze roll structure, in particular to a vacuum suction type free water removal squeeze roll structure for a rubber belt vacuum press filter. Background technique [0002] In the prior art, in the field of tailings filtration of some heavy metals and rare metals, it is often required that the water content in the filter residue after filtration is relatively low, and the use of a single rubber belt vacuum filter plus a belt press filter can no longer meet the water content. Requirement, the Chinese patent that the patent number is 02115946.7 discloses a kind of squeeze roll structure that is used for sugarcane juice extraction, and it is arranged on the suction groove connected to the end face of the squeeze roll on the squeeze roll surface, so that the juice after squeezing is squeezed from the squeezer along the suction groove. The end face of the roller flows out, thereby preventing the squeezed juice from flowing back t...

AI Technical Summary

Problems solved by technology

However, the structure of this press roller only relies on the weight of the juice to make the juice flow out, and the dehydration rate and applicability of the press are limited to a certain extent.

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