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

A feeding system and pressure-stabilizing tank technology, which is applied in separation methods, filtration separation, chemical instruments and methods, etc., can solve the problems affecting the filtration effect and production efficiency, uniform mixed fluid resistance, uneven feeding of filter chambers, etc. problems, to achieve the effect of consistent filter cake wetness, consistent product quality and balanced pressure

CN114470897APending Publication Date: 2022-05-13JINGJIN ENVIRONMENTAL PROTECTION INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-05-13

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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.
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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...

Examples

Embodiment 1

[0017]A pressure-stabilizing tank-assisted steady-pressure feeding system for a filter press (hereinafter referred to as: step-by-step steady-pressure feeding system), that is, a step-by-step steady-pressure feeding and backflushing and plugging-clearing system; key points of an innovative overall implementation plan Yes: Improve the existing one-step unstabilized pressure feeding and back-blowing and blocking-clearing system of the series-connected filter chambers, and improve the component-step steady-pressure feeding and back-blowing and blocking-clearing system, including air compressor 1, material pump 2, and surge tank 3 , material pool 5, pressure sensor 19, material conveying main road 21, material conveying bypass 22, air pressure pipeline 23, return pipeline 24, various pipeline valves; material pool 5, material pump 2, surge tank 3 And the filter press 4 are arranged in sequence from left to right; the main feeding road 21 is connected in series with the material poo...

Embodiment 2

[0028] An automatic filter press unit, which uses the pressure-stabilizing tank-assisted steady-pressure feeding system (abbreviation: step-by-step steady-pressure feeding system) of the filter press provided by the present invention; the automatic filter press unit is mainly composed of an automatic filter press 4. Composed of step-by-step stable pressure feeding system, hydraulic station, filtrate pool 6, filter cake storage and transportation equipment; automatic filter press 4, including double beam frame, filter plate pressing mechanism, multi-filter chamber filter mechanism, flap Liquid contact mechanism, plate pulling and cake unloading mechanism, filter cloth cleaning mechanism, PLC program control system; step-by-step stable pressure feeding system, that is, step-by-step stable pressure feeding and back-blowing and blocking-clearing system, including air compressor 1 (abbreviation: air compressor 1) press), material delivery pump 2 (abbreviation: material pump), materi...