CN216878024U

CN216878024U - Filter cloth cleaning water supply system

Info

Publication number: CN216878024U
Application number: CN202220250251.5U
Authority: CN
Inventors: 赵千秋; 李智杰; 王瑞峰
Original assignee: Jingjin Equipment Co Ltd
Current assignee: Jingjin Equipment Co Ltd
Priority date: 2022-02-07
Filing date: 2022-02-07
Publication date: 2022-07-05
Anticipated expiration: 2032-02-07

Abstract

The utility model discloses a filter cloth cleaning water supply system, which comprises an automatic water replenishing valve, a liquid level control system, a buffer water tank, a cleaning pump, a safety valve, a pressure gauge, a water return valve, a backwashing filter, a water supply valve, a filter cloth cleaning device, a filter cloth cleaning water source and a PLC (programmable logic controller) control cabinet, wherein the backwashing filter, the water supply valve, the water return valve and the buffer water tank are newly added parts of the filter cloth cleaning water supply system, and the backwashing filter ensures that a cleaning nozzle is not blocked any more and enhances the filter cloth cleaning effect; the water supply valve and the water return valve respectively control water supply and water return, so that intermittent water supply of the filter cloth cleaning device is realized, the potential safety hazard is reduced while water is saved, and the purpose of creating efficiency for enterprises is achieved.

Description

Filter cloth cleaning water supply system

Technical Field

The utility model belongs to the field of filtering equipment in a solid-liquid separation process, and relates to a filter cloth cleaning water supply system on a filter press.

Background

The filter press is a universal solid-liquid separation device and is widely applied to the industries of chemical industry, metallurgy, pharmacy, dye, food, brewing, ceramics and environmental protection, the filter cloth cleaning device is a device which is arranged on the filter press and is used for automatically cleaning the filter cloth on line, a cleaning medium needs high-pressure cleaning water, the pressure of the cleaning water is (4-10) MPa, the high-pressure cleaning water is sprayed out through a cleaning nozzle, and in the operation process of the cleaning device, the cleaning water is kept in a constant output state, so that a part of the cleaning water is wasted, the pressure ratio of the cleaning water is higher, and certain potential safety hazards are also possessed; as the minimum drift diameter of the cleaning nozzle is only 0.5mm, the cleaning nozzle is easy to block, the cleaning effect of the filter cloth does not reach the standard, and materials are deposited on the surface of the filter cloth, so that the surface of the filter cloth is blocked, and the filtering effect of the filter press is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect of washing filter cloth in the conventional filter cloth washing device, solve the corresponding technical problem, and provide a filter cloth washing water supply system, so that water is saved, and the filter cloth is effectively and thoroughly washed.

The technical scheme adopted by the utility model for solving the problems in the prior art is as follows: the utility model provides a filter cloth washs water supply system, by the backwash formula filter, buffer tank, level control system, automatic water supply valve, wash the water pump, the manometer, the relief valve, the wet return valve, the water feed valve is constituteed, wherein, the backwash formula filter, the water feed valve, wet return valve and buffer tank are newly-increased parts of filter cloth washing water supply system, increase the cyclic utilization of water resource, reach the purpose of using water wisely, on the other hand utilizes the characteristic of backwash formula filter, make the washing nozzle no longer block up, strengthen the filter cloth cleaning performance, extension filter cloth life.

Furthermore, the backwashing filter is arranged between the buffer water tank and the pipeline of the filter cloth cleaning pump, filth in cleaning water is filtered out, cleaning water is ensured to be clean, a nozzle is not blocked, it is ensured that the filter cloth is effectively and thoroughly washed, and the backwashing filter needs to regularly discharge sewage.

Furthermore, a water supply valve and a water return valve are additionally arranged on the original pipeline, the water supply valve is used for giving an electric signal to the valve when the cleaning device is operated and filter cloth needs to be cleaned, the valve is opened to supply water, and the valve is automatically closed when the cleaning device does not need to be cleaned; the function of the water return valve is that the cleaning device does not need to clean the filter cloth to return to the original position any more, when preparation is made for next cleaning, under the state that the pump continuously supplies water, redundant water flow in the pipeline is not discharged, an electric signal is given to open the water return valve, the cleaning water flow flows back to the buffer water tank through the pipeline, intermittent drainage is achieved, water flow discharge is reduced, the purpose of saving water is achieved, meanwhile, the weight of the water flow in the pipeline is reduced, and the cleaning device can conveniently return to the original position quickly.

Furthermore, the buffer water tank is positioned between the washing pump and the original water supply pipeline and mainly used for storing washing water, providing the washing water for the washing pump and receiving the returned washing water; an automatic water replenishing valve and a liquid level control system are installed in the buffer water tank, the automatic water replenishing valve of the water tank is interlocked with the liquid level control system to replenish water to the water tank, and when the liquid level reaches the lowest point, the cleaning pump is protected to control the pump to stop.

The filter cloth cleaning water supply system provided by the utility model solves the problem of intermittent water use state of the filter cloth cleaning device in the operation process, and the problem of backflow in the stage that the cleaning device does not need water during traveling is solved by adding the buffer water tank, the water supply valve and the water return valve, so that the cleaning water is saved, the high-pressure water is prevented from splashing harm, and the added backwashing filter ensures that dirt in a water source is removed, prevents a nozzle from being blocked and ensures the cleaning effect.

Drawings

FIG. 1 is a schematic view of a process flow of a filter cloth cleaning and water supply system of the present invention.

Reference numerals: the method comprises the following steps of 1-automatic water replenishing valve, 2-liquid level control system, 3-buffer water tank, 4-cleaning pump, 5-safety valve, 6-pressure gauge, 7-water return valve, 8-backwashing filter, 9-water supply valve, 10-filter cloth cleaning device, 11-filter cloth cleaning water source, 12-filter press and 13-PLC control cabinet.

Detailed Description

The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some preferred embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Examples

A filter cloth cleaning water supply system mainly comprises an automatic water replenishing valve 1, a liquid level control system 2, a buffer water tank 3, a cleaning pump 4, a safety valve 5, a pressure gauge 6, a water return valve 7, a backwashing filter 8, a water supply valve 9, a filter cloth cleaning device 10, a filter cloth cleaning water source 11, a filter press 12 and a PLC (programmable logic controller) control cabinet 13, wherein the filter cloth cleaning water source 11 is used as source water supply, cleaning water enters the buffer water tank 3, the water in the water tank is input to the cleaning pump 4 through a pipeline, the cleaning pump increases the pressure and reaches the filter cloth cleaning device 10 through the water supply valve 9 to clean filter cloth, the safety valve 5 has the effect that the pressure reaches a limit value, the safety valve 5 is opened, the pressure is released and flows back into the buffer water tank 3, and the pipeline is safe and reliable; the water supply valve 9 is mainly used for supplying water when the cleaning device operates to clean the filter cloth; when the cleaning device goes upward (returns to the original position) and does not need cleaning water flow, the water return valve 7 opens the water flow in the pipeline and flows back to the buffer water tank 3, and the pressure of the pipeline is reduced to realize intermittent water supply; the back-washing filter 8 removes impurities in a water source, and filters washing water in a pipeline, so that the washing water is clean and free of dirt, a nozzle is not blocked any more, and replacement of parts is reduced.

The PLC control cabinet 13 outputs an electric signal to control the start and stop of each valve, a filter plate is arranged on the filter press 12, and the filter cloth cleaning device 10 moves up and down to clean residual filter cakes on the filter cloth, so that the filter cloth is clean when the filter press feeds next time.

Claims

1. A filter cloth cleaning water supply system comprises an automatic water replenishing valve, a liquid level control system, a buffer water tank, a cleaning pump, a safety valve, a pressure gauge, a water return valve, a backwashing filter, a water supply valve, a filter cloth cleaning device, a filter cloth cleaning water source and a PLC (programmable logic controller) control cabinet, and is characterized in that the backwashing filter, the water supply valve, the water return valve and the buffer water tank are additionally arranged in a pipeline, and the backwashing filter is arranged between the buffer water tank and a pipeline of the filter cloth cleaning pump to filter dirt in cleaning water; a water supply valve and a water return valve are additionally arranged on the pipeline, the water supply valve is used for giving an electric signal to the valve when the cleaning device runs and the filter cloth needs to be cleaned, the valve is opened to supply water, and the valve is automatically closed when the cleaning device does not need to be cleaned; the water return valve has the effects that when the cleaning device does not need to clean the filter cloth any more, redundant water flow in the pipeline is discharged everywhere, an electric signal is given to open the water return valve, and the cleaning water flow flows back to the buffer water tank through the pipeline; the buffer water tank is positioned between the cleaning pump and an original water supply pipeline and mainly used for storing cleaning water, an automatic water replenishing valve and a liquid level control system are installed in the buffer water tank, the automatic water replenishing valve of the water tank is interlocked with the liquid level control system to replenish water to the water tank, and the control of the cleaning pump is protected from stopping the pump when the liquid level reaches the lowest point.