CN219186185U

CN219186185U - Filter cloth soaking and washing device

Info

Publication number: CN219186185U
Application number: CN202320076921.0U
Authority: CN
Inventors: 李江龙; 张晓红
Original assignee: Weifang United Environmental Protection Technology Co ltd
Current assignee: Weifang United Environmental Protection Technology Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-16
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of filter cloth cleaning, in particular to a filter cloth soaking and washing device. It has solved the loaded down with trivial details and the problem of easily damaging the filter cloth of process. The filter press comprises a plate-and-frame filter press, a dirt inlet piece, a cleaning pipeline, a preparation tank and a return pipeline, wherein a blind plate is detachably connected to the feed inlet end of the plate-and-frame filter press, the two ends of the cleaning pipeline are respectively connected with the preparation tank and the plate-and-frame filter press, the dirt inlet piece is connected with the plate-and-frame filter press, the return pipeline is connected between the discharge end of the plate-and-frame filter press and the preparation tank, and a stop valve is arranged on the return pipeline. The utility model can realize the disassembly-free soaking and washing of the filter cloth, not only can save the labor for disassembling and installing the filter cloth, but also can avoid the abnormal damage caused by frequent disassembly and installation of the filter cloth.

Description

Filter cloth soaking and washing device

Technical Field

The utility model relates to the technical field of filter cloth cleaning, in particular to a filter cloth soaking and washing device.

Background

The filter cloth is widely used as a filtering material, wherein typical application comprises a filtering unit of a plate-and-frame filter press which is common in the current environmental protection industry, the filter cloth is a main component part of the plate-and-frame filter press, and is directly contacted with a medium in the use process, so that the filter cloth has a solid-liquid separation effect, and in addition, the filter cloth has a protective effect (preventing pollution and blockage of the filter plate) on the filter plate. In the practical use process, the filter cloth is made into different shapes and sizes according to the equipment requirements, different specifications of air permeability are made according to the different filter media, the filter cloth is detachable and detachable as a movable unit, and meanwhile, the filter cloth is also a consumable product, and the service life of the filter cloth mainly looks at the use frequency and the cleaning effect. If the filter holes are not cleaned in time and are seriously blocked, the filtering effect is invalid.

At present, the plate frame filter cloth is mainly cleaned in two stages

1. Periodic cleaning, which means cleaning for removing surface residual materials to prevent blockage and scaling after a period of use, can be realized by high-pressure water washing equipment equipped in the machine.

2. The blockage and scaling cleaning means that the filter cloth is seriously blocked in the use process, the solid-liquid separation effect is poor, the high-pressure water washing cannot be realized, the filter cloth is required to be completely detached from the machine at the moment, and the filter cloth can be used only by being washed by high-pressure water after being soaked by prepared washing liquid.

In the existing use process, the filter cloth of the plate-and-frame filter press can be blocked and hardened after being used for a long time, and the conventional treatment method is to detach the filter cloth from the filter plate for soaking and cleaning and then install or directly replace new cloth, so that the working procedure is complicated, the labor intensity is high, and the filter cloth is easy to damage.

Disclosure of Invention

The utility model provides a filter cloth soaking and washing device which can realize the disassembly-free soaking and washing of filter cloth, not only can save labor for disassembling and installing the filter cloth, but also can avoid abnormal damage caused by frequent disassembly and installation of the filter cloth.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a filter cloth soaks washing device, includes plate-and-frame filter press, advances dirty piece, washs the pipeline, prepares jar and return line, the feed inlet end of plate-and-frame filter press can be dismantled and be connected with the blind plate, the both ends of wasing the pipeline are connected with preparing jar and plate-and-frame filter press respectively, advance dirty piece and be connected with plate-and-frame filter press, the return line is connected between the discharge end of plate-and-frame filter press and prepares the jar, be equipped with the stop valve on the return line.

Further, a one-way valve is connected between the purge line and the return line, the one-way valve being for controlling fluid flow from the purge line to the return line.

Further, the dirt inlet piece comprises a safety valve and a dirt inlet pipe, the dirt inlet pipe is connected to the plate-and-frame filter press, and the safety valve is arranged on the dirt inlet pipe and used for filling sludge into the plate-and-frame filter press.

Further, a storage tank is further connected to the preparation tank, a first lifting pump is connected to the storage tank, and a tap water pipe is connected between the discharge end of the first lifting pump and the preparation tank.

Further, the discharge end of the preparation tank is also connected with a valve, a second lifting pump is connected between the valve and the cleaning pipeline, and the discharge end of the second lifting pump is connected with a one-way valve.

The utility model has the beneficial effects that:

the filter cloth can be soaked and washed without disassembly, so that not only can the labor for disassembling and installing the filter cloth be saved, but also the abnormal damage caused by frequent disassembly and installation of the filter cloth can be avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the filter cloth soaking and washing device;

reference numerals illustrate:

1. a plate and frame filter press; 2. a dirt inlet member; 21. a safety valve; 22. a sewage inlet pipe; 3. cleaning a pipeline; 4. preparing a tank; 5. a return line; 6. a blind plate; 7. a stop valve; 8. a one-way valve; 9. a storage tank; 10. a first lift pump; 11. a tap water pipe; 12. a valve; 13. and a second lift pump.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model.

As shown in fig. 1, the filter cloth soaking and washing device comprises a plate-and-frame filter press 1, a dirt feeding part 2, a cleaning pipeline 3, a preparation tank 4 and a return pipeline 5, wherein a blind plate 6 is detachably connected to the feed inlet end of the plate-and-frame filter press 1, two ends of the cleaning pipeline 3 are respectively connected with the preparation tank 4 and the plate-and-frame filter press 1, the dirt feeding part 2 is connected with the plate-and-frame filter press 1, the return pipeline 5 is connected between the discharge end of the plate-and-frame filter press 1 and the preparation tank 4, and a stop valve 7 is arranged on the return pipeline 5.

In this embodiment, a check valve 8 is connected between the purge line 3 and the return line 5, and the check valve 8 is used to control the flow of fluid from the purge line 3 to the return line 5.

In this embodiment, the dirt inlet member 2 includes a safety valve 21 and a dirt inlet pipe 22, the dirt inlet pipe 22 is connected to the plate and frame filter press 1, and the safety valve 21 is disposed on the dirt inlet pipe 22 for filling the sludge into the plate and frame filter press 1.

In this embodiment, the preparation tank 4 is further connected with a storage tank 9, the storage tank 9 is connected with a first lift pump 10, and a tap water pipe 11 is connected between the discharge end of the first lift pump 10 and the preparation tank 4.

In this embodiment, the discharge end of the preparation tank 4 is further connected with a valve 12, a second lift pump 13 is connected between the valve 12 and the cleaning pipeline 3, and the discharge end of the second lift pump 13 is connected with the one-way valve 8.

Description of working process:

the configuration process comprises the following steps: concentrated washing liquid is arranged in a storage tank 9, diluted washing liquid is arranged in a preparation tank 4, a first lifting pump 10 is opened, concentrated washing liquid and tap water are added into the preparation tank 4 according to a certain proportion (the proportion is determined according to laboratory data), a second lifting pump 13 and a one-way valve 8 are opened, a feed end and a discharge end of the preparation tank 4 are opened, a stop valve 7 and a safety valve 21 are closed, the mixed liquid is circulated in the preparation tank 4 to fully mix and dilute, whether the sampling detection concentration reaches the requirement or not, and the washing liquid or tap water is added again according to the concentration level until the sampling detection is qualified.

The conveying process comprises the following steps: pouring the sludge along the sludge inlet pipe 22 by a sludge pump and delivering the sludge to the plate-and-frame filter press 1; the filter chamber for compressing the sludge is arranged in the plate-and-frame filter press 1, the plate-and-frame filter press 1 is regulated to be in a state that the filter chamber is closed before the sludge is poured in, so that the water content of the sludge in the plate-and-frame filter press 1 is reduced, the sludge is discharged in a cake shape through the plate-and-frame filter press 1, the sludge is compressed to be discharged in a cake shape through the plate-and-frame filter press 1 to be the prior art, so that details are omitted, then, the configured washing liquid enters the filter chamber in the plate-and-frame filter press 1 through the cleaning pipeline 3, a filtrate discharge port on the plate-and-frame filter press 1 and a valve corresponding to a sludge feed port are closed before the washing liquid is conveyed, the washing liquid is prevented from directly entering the cleaning pipeline 3 through the blind plate 6, then pressure is maintained, in order to ensure that the washing liquid in the filter chamber is sufficient, the conveying is stopped after the pressure of the filter chamber reaches 0.1MPa, the valve 12 is closed, and the washing liquid directly enters the filter chamber in the plate-and filter press 1 through the cleaning pipeline 3.

The soaking process comprises the following steps: the pressure is maintained and soaked for about 48 hours, and the pressure is ensured to be not lower than 0.03MPa during the soaking period.

The discharging process comprises the following steps: after the pressure maintaining soaking is finished, a stop valve 7 is opened, the washing liquid is discharged into a configuration tank, residual liquid is discharged, the configured washing liquid enters a filter chamber in the plate-and-frame filter press 1 through a cleaning pipeline 3, a filtrate discharge port and a sludge feed port on the plate-and-frame filter press 1 are closed before the washing liquid is conveyed, and the washing liquid is prevented from directly entering the cleaning pipeline 3 through a blind plate 6 to wash all filter cloth for 1 time. Finally, the disassembly-free soaking and washing of the filter cloth can be realized, not only can the labor for disassembling and installing the filter cloth be saved, but also the abnormal damage caused by frequent disassembly and installation of the filter cloth can be avoided.

All technical features in the embodiment can be freely combined according to actual needs.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

The foregoing embodiments are preferred embodiments of the present utility model, and other embodiments are included, without departing from the spirit of the present utility model.

Claims

1. The filter cloth soaking and washing device comprises a plate-and-frame filter press, a dirt inlet piece, a cleaning pipeline, a preparation tank and a return pipeline, and is characterized in that a blind plate is detachably connected to the feed inlet end of the plate-and-frame filter press, two ends of the cleaning pipeline are respectively connected with the preparation tank and the plate-and-frame filter press, the dirt inlet piece is connected with the plate-and-frame filter press, the return pipeline is connected between the discharge end of the plate-and-frame filter press and the preparation tank, and a stop valve is arranged on the return pipeline.

2. A filter cloth soaking and washing device as claimed in claim 1, characterized in that a one-way valve is connected between the washing line and the return line, said one-way valve being used for controlling the flow of fluid from the washing line to the return line.

3. The filter cloth soaking and washing device according to claim 2, wherein the dirt inlet piece comprises a safety valve and a dirt inlet pipe, the dirt inlet pipe is connected to the plate-and-frame filter press, and the safety valve is arranged on the dirt inlet pipe and is used for filling the sludge into the plate-and-frame filter press.

4. A filter cloth soaking and washing device as claimed in claim 3, wherein the preparation tank is further connected with a storage tank, the storage tank is connected with a first lift pump, and a tap water pipe is connected between the discharge end of the first lift pump and the preparation tank.

5. The filter cloth soaking and washing device according to claim 2, wherein the discharge end of the preparation tank is further connected with a valve, a second lifting pump is connected between the valve and the cleaning pipeline, and the discharge end of the second lifting pump is connected with a one-way valve.