Technology for diagnosing material leakage of filter cloth by monitoring underflow filtrate on line and underflow type filter mechanism

Abstract

The invention discloses a technology for online monitoring underflow filtrate to diagnose filter cloth leakage and an underflow type filter mechanism, and the key points of the innovative scheme are as follows: a three-way type underflow filtrate monitoring device, namely a device for online indirectly monitoring the underflow filtrate to diagnose filter cloth damage leakage, is additionally arranged, and the device comprises a liquid discharge three-way pipe, a liquid inspection sight glass and a mirror scraping device; the device is integrally mounted between a thrust plate undercurrent pipe and an external drainage pipeline, filtrate flowing in the drainage pipeline can be horizontally seen on line, damage and leakage of filter cloth can be accurately judged, timely emergency shutdown is facilitated, and blockage of a filtrate network and influence on the purity of the filtrate due to continuous leakage are effectively avoided. The underflow type filtering mechanism and the filtrate monitoring device are used for solving the problems that an on-line dynamic monitoring device for filter cloth breakage and leakage is lacked, once the filter cloth is broken on line and the leakage is not informed, the machine cannot be shut down in time, the materials leak into the filter screen surface of a filter plate to block a filtrate network, and the filtering efficiency and effect are influenced; and the purity of the filtrate is influenced due to the fact that materials leak into the filtrate. The energy is expanded; the quality is guaranteed; the efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of the underflow type filter press (patent classification number B01D25 / 12), and relates to a monitoring device and technology for online diagnosis of filter cloth damage and material leakage of the underflow type filter mechanism. Background technique [0002] The filter press is a pressurized filtration equipment that operates intermittently with multiple filter chambers; the dark flow type filter press refers to the liquid outlet hole set under each filter plate, and the liquid outlet holes of multiple filter plates are connected to form a single outlet. The liquid channel is connected to the external closed liquid discharge pipeline, and the filter press cannot see the liquid; it mainly consists of a double-beam frame, a filter plate pressing mechanism, an undercurrent filter mechanism, a flap liquid receiving mechanism, and a pull plate unloading mechanism , cleaning filter cloth mechanism, and PLC prog...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the existing undercurrent filter mechanism and solve the lack of online dynamic monitoring device for filter cloth damage and material leakage. Once the filter cloth is damaged and material leakage is not known, it cannot be shut down in time for disposal, and the material leaks to the filter plate filter. In order to solve the technical problems of clogging the filtrate network in the surface, affecting the filtration efficiency and effect, and the leakage of materials into the filtrate, which affects the product quality of the filtrate type, an online monitoring of undercurrent filtrate to diagnose filter cloth leakage technology and undercurrent filter mechanism; Cloth leakage technology—refers to the device and technology for diagnosing filter cloth damage and leakage; refers to the undercurrent filter mechanism—refers to the underflow filter mechanism with the technology of online monitoring underflow filtrate to diagnose filter cloth leakage according to the present invention, due to the number of words in the patent name limited and abbreviated

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