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Method and system for automatically controlling synchronous action of filter plates of filter press

A filter press filter plate, synchronous action technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc. question

Active Publication Date: 2020-12-25
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common control method of the filter plate of the filter press is an open-loop control method. Under this control method, the PLC cannot obtain the real-time status of each control point, which leads to the fact that once a deviation occurs during the operation of the system, even if it has been determined Abnormal, but cannot be corrected in time, failures caused by accumulated deviations are inevitable
The filter press is provided with kinetic energy by the hydraulic station, and the oil cylinder rod pulls the filter plate to do the corresponding push-pull movement. Due to uneven force, the filter plate cannot be moved in parallel during the push-pull process, and the PLC that has not received feedback still sends instructions to the hydraulic station. , the consequences of forced pressure will cause damage to the filter plate
In the prior art, there is also a device for controlling the grouping of the filter plates of the high-efficiency filter press, and it is impossible to coordinate the synchronous actions of all the filter plates

Method used

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  • Method and system for automatically controlling synchronous action of filter plates of filter press
  • Method and system for automatically controlling synchronous action of filter plates of filter press
  • Method and system for automatically controlling synchronous action of filter plates of filter press

Examples

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Embodiment 1

[0056] figure 1 It shows a schematic flow chart of the method for automatically controlling the synchronous action of the filter plate of the filter press provided by Embodiment 1 of the present invention, refer to figure 1 As can be seen, the method includes the following steps:

[0057] S110. Identify the operation instruction of the filter press. This step is to determine whether the current filter press has a control command to execute the action, and what action process needs to be automatically executed. After the action to be executed is identified as the process of opening and closing the plate, the method or step in S120 is further executed.

[0058] This operation can ensure that the synchronous action of the opening and closing plate of the filter press is carried out under the premise of having the action command, and having the corresponding opening and closing plate action command indicates that the current filter press system and the various valves and structur...

Embodiment 2

[0125] In consideration of other aspects of any one or more of the above embodiments, the present invention further provides a system for automatically controlling the synchronous action of filter plates of a filter press. The system executes the methods or steps described in any one or more embodiments above. Figure 4 A schematic structural diagram of a system for automatically controlling the synchronous action of filter plates of a filter press in an embodiment of the present invention is shown, and the following is combined with Figure 4 The information in describes the structure of the system.

[0126] An operation instruction identification module 41 configured to identify an operation instruction of the filter press. This step is to determine whether the current filter press has a control command to execute the action, and what kind of action process needs to be automatically executed. After identifying and determining the action to be executed as the opening and clo...

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Abstract

The invention provides a method and system for automatically controlling synchronous action of filter plates of a filter press. The method comprises the steps that: pressure data at two sides of eachfilter plate suspension rod and limiting switch state data at two sides of each filter plate arecollected when it is recognized thatthe filter press has a plate closing / opening action instruction; anoil pump of a filter pressing system and related valves for plate closing / opening are controlled according to a real-time plate closing pressure monitoring value and a pressing pressure monitoring value, and the plurality of filter plates of the filter press are automatically controlled to synchronously realize the plate opening / closing action according to set plate closing / opening requirements. By the means of the technical schemes of the invention, the automatic synchronous control over all the filter plates of the filter press in the plate closing and opening operation process can be achieved, operation data of all structures are collected in multiple directions to serve as the basis of real-time control, timely response can be achieved when fault hidden dangers exist or faults just happen, the fault removal efficiency is guaranteed, time and material resource losses of fault expansion are avoided, and the intelligence of synchronous control of the multiple filter plates of the filter press is improved.

Description

technical field [0001] The invention relates to the technical field of filter press operation and maintenance, in particular to a method and system for automatically controlling the synchronous action of filter plates of a filter press. Background technique [0002] As a filter press equipment widely used in petroleum, chemical, pharmaceutical, sugar, coal washing, oil, printing and dyeing, brewing, ceramics, mining metallurgy, sludge treatment and other fields, its mechanical structure is complex, the degree of automation is low, The failure rate is high; whether the filter press is a plate-and-frame, box-type, or diaphragm filter press, it is operated in a sequential batch mode. The main action of the filter press body is to complete the solid-liquid separation. Plying, opening, closing, opening, unloading and cleaning, etc., because the filter plate moves the most frequently in the whole process, so the faults caused by it are also the most. [0003] The common control m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D25/12B01D25/172B01D25/00
CPCB01D25/12B01D25/172B01D25/003B01D25/007
Inventor 王媚陈传好
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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