Automatic operation control method and system for diaphragm filter press

Abstract

The invention provides an automatic operation control method and system for a diaphragm type filter press, and the method comprises the steps: controlling the diaphragm type filter press to automatically achieve plate combination according to a set strategy, determining an applicable feeding speed according to a real-time feeding speed and an expected feeding speed, and feeding from a charging bucket to a cavity according to the applicable feeding speed; furthermore, the residual filter material in the material hole is blown back into the material tank through water replacement, then the extrusion state is determined according to the real-time pressing pressure of the diaphragm type filter press, a filter pressing mode is controlled to achieve diaphragm extrusion, and then the water left in the feeding hole is blown back to the water tank through gas replacement. And the vacuum pump is controlled to vacuumize the diaphragm cavity to realize automatic resetting of the diaphragm, so thatthe extruded filter cake is separated from the diaphragm. By adopting the technical scheme provided by the invention, the full-automatic control of the diaphragm filter press can be effectively realized, the consumption of manpower, material resources and time is reduced, the abnormal information in the operation process can be detected in time, and the automatic development of the filter pressing process is promoted to a great extent.

Description

technical field [0001] The invention relates to the technical field of operation control of filter press equipment, in particular to an automatic operation control method and system for a diaphragm filter press. Background technique [0002] Diaphragm filter press is a mechanical equipment widely used in petroleum, chemical, pharmaceutical, sugar, coal washing, oil, printing and dyeing, brewing, ceramics, mining metallurgy, sludge treatment and other fields. The cavity formed by the elastic diaphragm installed between them under the action of high pressure squeezes the filter material to achieve the purpose of solid-liquid separation; due to the complex mechanical structure of the diaphragm filter press, the large number of control and monitoring points, and the cavity during work It is in a high-pressure state, but as a traditional equipment with low degree of automation and high failure rate, it is difficult to meet the requirements of the current industry. In practical ap...

AI Technical Summary

Problems solved by technology

[0002] Diaphragm filter press is a mechanical equipment widely used in petroleum, chemical, pharmaceutical, sugar, coal washing, oil, printing and dyeing, brewing, ceramics, mining metallurgy, sludge treatment and other fields. The cavity formed by the elastic diaphragm installed between them under the action of high pressure squeezes the filter material to achieve the purpose of solid-liquid separation; due to the complex mechanical structure of the diaphragm filter press, the large number of control and monitoring points, and the cavity during work It is in a high-pressure state, but as a traditional equipment with low degree of automation and high failure rate, it is difficult to meet the requirements of the current industry. In practical applications, no matter whether it is running alone or in cooperation with other equipment in the filter press system, it is necessary. It is impossible to realize the fully automatic control of the membrane filter press, and there is a lack of automation, as well as time-consuming and labor-intensive deficiencies in the operation and maintenance process.

The automatic control scheme of the filter press in the prior art cannot be effectively applied to the diaphragm filter press due to the limitation of the filter press model it is aimed at. Therefore, it is urgent to provide an automatic control scheme for the diaphragm filter press. run control method

Images