Auxiliary pressure-stabilizing feeding system for pressure-stabilizing tank of filter press and step-by-step pressure-stabilizing feeding method

Abstract

According to the pressure stabilizing tank auxiliary type pressure stabilizing feeding system of the filter press and the step-by-step pressure stabilizing feeding method, the key points of the innovative scheme are as follows: an existing one-step non-pressure-stabilizing feeding system is improved into a step-by-step pressure stabilizing feeding system, namely, low-pressure feeding is firstly performed, and then high-pressure material supplementing and pressure maintaining filtering and back flushing blockage clearing systems are performed; comprising an air compressor, a material pump, a surge tank, a material pool, a pressure sensor, a material conveying main path, a material conveying bypass and an air compression pipeline. The step-by-step pressure-stabilizing feeding method comprises the following steps: firstly, directly pumping 0.4 MPa materials into the filter press by the material pump; the material pump and the air compressor jointly and indirectly supplement 0.8 MPa materials to the filter press through the surge tank, and the air compressor assists the filter press in pressure maintaining and filtering, so that feeding of each filter chamber is uniform, and the pressure is balanced; the technical problem that the feeding pressure of a material pump directly applied to multiple filter chambers of a filter press is unstable due to complex reasons such as vibration of a paddle type material pump and pressure loss of a multi-filter-chamber series-connection feeder tail filter chamber is solved. And the performance of the feeding system, the filtering effect of the filter press, the production efficiency and the product quality are improved.

Description

technical field [0001] The invention belongs to the technical field of automatic filter press unit (patent classification number B01D25 / 12), and relates to a multi-chamber steady-pressure feeding and back-blowing cleaning system (including a material pump, a material stabilizing tank, and an air compressor) And its constant pressure feeding method. Background technique [0002] The filter press is a pressurized filtration equipment that operates intermittently with multiple filter chambers; the automatic filter press is a machine, electricity, and hydraulic integration, and a PLC intelligently controlled filter press; the automatic filter press unit is mainly composed of Automatic filter press (abbreviation: filter press), material mixing pool (abbreviation: material pool), material delivery pump (abbreviation: material pump), air compressor (abbreviation: air compressor), hydraulic station, filtrate pool, filter Cake storage and transportation equipment (including filter c...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the existing multi-filter chamber series feeding and back blowing cleaning system, and solve the problem of unstable feed pressure caused by the gradual increase of the vibration of the paddle type material pump and the tail filter of the multi-filter chamber series feeder. There must be pressure loss in the filter chamber, the objective change of the material is difficult to mix evenly, and the fluid resistance is naturally different, which causes the material pump to directly feed the multi-filter chambers of the filter press. , the technical problem that affects the filtration effect and production efficiency, providing a pressure-stabilizing tank-assisted steady-pressure feeding system and a step-by-step steady-pressure feeding method for a filter press, and a step-by-step steady-pressure feeding method——referring to a filter press The step-by-step steady-pressure feeding method of the surge tank-assisted steady-pressure feeding system is abbreviated because of the limited number of characters in the patent name

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