A solid-liquid switching valve

Abstract

The invention relates to the technical field of solid-liquid separation, in particular to a solid-liquid switching valve. The present invention includes a valve body and a valve core, the valve body is vertically penetrated with a feed port and a solid discharge port, and the valve core is provided with a corresponding vertical penetration through a solid channel, so that the solid material can pass through the feed port, The solid channel and the solid discharge port are connected to the external material receiving equipment; the outer wall of the valve core is also provided with a liquid channel that can be connected to the feeding port, and the other end of the opposite driving end of the valve core forms a liquid discharge end, and the liquid discharge end is connected to the valve body cavity. A liquid accumulation cavity for temporarily storing liquid materials is formed by enclosing, the liquid channel is connected to the liquid accumulation cavity, and the valve body is provided with a liquid discharge port that communicates with the liquid accumulation cavity; the cavity extension path of the liquid channel and the solid channel Avoid each other's space. The invention can smoothly realize the switching and discharging effect of the filter cake as the solid phase and the cleaning liquid as the liquid phase, and ultimately greatly improves the reliability, continuity and stability of the entire operation process.

Description

technical field [0001] The invention relates to the technical field of solid-liquid separation, in particular to a solid-liquid switching valve. Background technique [0002] As a centrifugal filter type solid-liquid separation equipment, the bag-turning centrifuge has the advantages of airtightness, automatic discharge, no residual filter cake, no damage to the crystal shape of the material, and high degree of automation. It is widely used in pharmaceutical, chemical, food and other industries. [0003] The working process of the bag turning centrifuge generally includes the stages of feeding, filtration, washing, dehydration and drying, unloading, and regeneration of filter cloth. According to the needs of the process, the above stages can be increased or decreased, and the operation is cyclic. As shown in Figure 1-2: 1. In the feeding stage, the bag turning centrifuge runs at low speed, the cavity of the drum a is in a sealed state, and the material enters the drum a thro...

AI Technical Summary

Problems solved by technology

If the cleaning liquid after rinsing is to be discharged from the filter cake outlet of the filter cake chamber, it is necessary to remove and disconnect the connected drying equipment or solid collection device first, drain the cleaning liquid after rinsing, and then connect the drying equipment or solid The collection device is obviously extremely time-consuming and labor-intensive, and needs to be solved urgently

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