CN218485321U

CN218485321U - Automatic continuous filtration equipment of backwash

Info

Publication number: CN218485321U
Application number: CN202222551270.4U
Authority: CN
Inventors: 刘军颖; 郭庆峰; 阎佳奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-02-17
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses an automatic continuous filtration equipment of backwash. The existing backwashing filtration equipment has two types, one type is intermittent filtration, liquid can not be continuously fed, and the equipment cost is high; one kind can feed liquid continuously, the disadvantage is that consumes energy, and the installation and maintenance are troublesome. The utility model has a closed cavity body, and the top of the upper barrel body is provided with a pressure indicating device and a pressure relief port; the lower barrel body is provided with a plurality of groups of supporting tubes, a clear liquid branch valve and a backflushing air inlet valve are arranged between each group of supporting tubes and a clear liquid main port, and the backflushing air inlet valve is communicated with an air source; the lower part of the lower barrel body is provided with a backflushing liquid outlet valve which is communicated with the stock solution pool; the liquid inlet is connected to the stock solution pool through a connecting pipeline, and the bottom of the lower barrel body is provided with a slag discharge port. The utility model has simple structure, can realize continuous liquid feeding, saves energy and is convenient to install and maintain; the internal pressure of the barrel body is high, the flow in the filtering process is high, and the treatment efficiency of the whole filtering equipment is high; the liquid inlet pipeline is in a normally open state, a valve is not required to be arranged, and the manufacturing cost is reduced.

Description

Automatic continuous filtration equipment of backwash

Technical Field

The utility model belongs to the technical field of filtration equipment, concretely relates to automatic continuous filtration equipment of backwash.

Background

Two common types of existing backwashing filter equipment are adopted, wherein one type of filtering mechanism is that liquid enters the inside of a filter element from the outside, sludge is trapped on the outer surface of the filter element, and clear liquid flows out of the inside of the filter element. The working process is as follows: feeding liquid, filtering, backwashing the whole set of filter elements intensively and discharging slag; the equipment has the advantages of energy conservation, convenient installation and maintenance and has the defects of intermittent filtration, liquid inlet failure of the equipment during backwashing and slag discharge, and the need of a liquid inlet valve during equipment manufacturing to ensure the accurate opening and closing of the equipment, and the large liquid inlet amount, the large liquid inlet valve and the high equipment cost.

The other filtering mechanism is that liquid enters the inside of the filtering element and flows out, sludge is intercepted on the inner surface of the filtering element, clear liquid flows out from the outside of the filtering element, and the filtering element is made into a tapered pipe with a thin upper part and a thick lower part so as to be convenient for sludge discharge in backwashing. The working process is as follows: liquid inlet and filter elements are backwashed one by one and slag is discharged one by one. The advantage can feed liquor in succession, and the shortcoming is that the filter element is installed the direction, and consumes energy, utilizes motor rotation to reach filter element backwash one by one, because of have two backup pads about in the equipment, need equipment to open the manhole in the bottom, installation maintenance is more troublesome, and it is time-consuming, hard to assemble at every turn and change filter element.

Disclosure of Invention

In order to compensate the deficiency of the prior art, the utility model provides an automatic backwash continuous filtration equipment can feed liquor, filter element in succession divide into groups backwash one by one, divide into groups one by one and arrange the sediment, on the basis of convenient operation, convenient maintenance, has also realized the using electricity wisely.

In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:

the utility model provides an automatic continuous filtration equipment of backwash, includes the staving, its characterized in that: the barrel body is a closed cavity and comprises an upper barrel body and a lower barrel body; the top of the upper barrel body is provided with a pressure indicating device and a pressure relief port F3, and the pressure indicating device is communicated with the inside of the upper barrel body;

a plurality of groups of supporting tubes are arranged at the upper part of the lower barrel body, and each group of filtering elements is connected with the corresponding supporting tube through a keel end socket;

a clear liquid branch valve F5 and a recoil air inlet valve F4 are arranged between each group of support tubes and the clear liquid main port F6; the backflushing air inlet valve F4 is communicated with an air source;

a backflushing liquid outlet valve F7 is arranged at the lower part of the lower barrel body, and the backflushing liquid outlet valve F7 is communicated with the stock solution pool;

a liquid inlet F1 on the lower barrel body is connected to the stock solution pool through a connecting pipeline;

and a slag discharge port F2 is formed in the bottom of the lower barrel body.

Further, the upper barrel body and the lower barrel body are in flange connection.

Further, the filter element includes a backup group and a working group.

The utility model has the advantages that:

1) The utility model is improved on the basis of the existing external liquid feeding backwashing filter equipment, the equipment has simple structure, the equipment can realize continuous liquid feeding during backwashing and slag discharging, and the equipment is energy-saving and convenient to install and maintain;

2) In the multi-pipe filtering group of the utility model, only one group is backwashed each time, and other filtering groups maintain normal filtering operation so as to ensure the continuous working requirement of the filtering system;

3) The utility model has the advantages that the barrel body is an airtight cavity, the internal pressure of the barrel body is large, the flow in the filtering process is large, and the treatment efficiency of the whole filtering equipment is high;

4) The liquid inlet pipeline of the utility model is in a normally open state, and a valve is not needed to be arranged, thereby reducing the manufacturing cost;

5) The utility model adopts the backwashing from the inside of the filter element to the outside, the sludge falling stroke is short, the backwashing effect is good, the trouble-free operation can be ensured, and the risk of filter blockage is greatly reduced;

6) The utility model sequentially filters and back-washes the filtering units one by one, so that the filter can not reach the critical pollution level; the backwashing process is extremely quick and thorough, and the system pressure is almost kept unchanged from beginning to end because a group of filter elements are in a standby state all the time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the process flow of the present invention;

in the figure, 1-barrel body, 101-upper barrel body, 102-lower barrel body, 2-supporting tube, 3-filtering element and 4-pressure indicating device.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

The utility model is an improvement on the basis of the existing external liquid inlet backwashing filter equipment, as shown in figure 1, the utility model comprises a barrel body 1; the barrel body 1 is a closed cavity and comprises an upper barrel body 101 and a lower barrel body 102; the upper barrel body 101 and the lower barrel body 102 are fixedly connected through flanges; because the barrel body 1 is a closed cavity, the internal pressure of the barrel body is high, the flow in the filtering process is high, and the treatment efficiency of the whole filtering equipment is high;

the top of the upper barrel body 101 is provided with a pressure indicating device 4 for detecting the internal pressure of the barrel body, and the pressure indicating device 4 is communicated with the inside of the upper barrel body 101; the top of the upper barrel body 101 is also provided with a pressure relief opening F3;

a plurality of groups of supporting tubes 2 are arranged at the upper part of the lower barrel body 102, and the filter element 3 is connected with the supporting tubes 2 through keel seal heads; the filter element 3 comprises a plurality of groups, reserve spare groups and can realize continuous liquid inlet;

a clear liquid branch valve F5 and a recoil air inlet valve F4 are arranged between each group of supporting tubes 2 and the clear liquid main port F6; the clear liquid branch valve F5 and the recoil air inlet valve F4 are interlocked, and the recoil air inlet valve F4 is communicated with an air source; the clear liquid branch valve F5 is connected to the clear liquid pool through a clear liquid main port F6;

a backflushing liquid outlet valve F7 and a backflushing gas inlet valve F4 at the lower part of the lower barrel body 102 are opened simultaneously, gas enters the filter element through the F4 to blow filter cakes outside the filter element away from the surface of the filter element, and liquid flows out of the F7 to drive the filter cakes blown away from the surface of the filter element to sink to the bottom of the barrel; a liquid inlet F1 on the lower barrel body 102 is connected to the stock solution tank through a connecting pipeline, and a liquid inlet valve is not arranged on the liquid inlet pipeline and is in a normally open state; the bottom of the lower barrel body 102 is provided with a slag discharge port F2.

As shown in fig. 2, the process flow diagram of the present invention is that the solution to be treated in the raw solution pool enters the barrel body from the solution inlet F1 through the pump, after being filtered by the 1/2 filter element in the barrel, the filtered clear solution flows into the liquid collecting pipe through the keel, the supporting pipe and the clear solution branch valve F5, and is discharged to the clear solution pool through the clear solution main port F6; the other 1/2 of the filter elements are in a standby working state.

Solid particles and suspended matters are blocked on the surface of the filter membrane, when the pressure inside the barrel body reaches a certain thickness, the pressure is increased, when the pressure inside the barrel body is increased to a certain pressure, a clear liquid branch valve F5 communicated with the 1/2 filter element is closed, meanwhile, a corresponding pressure release valve F3 and a backwashing air inlet valve F4 are opened, a backwashing liquid outlet valve F7 is opened, gas on the upper part of the filter element is subjected to back flushing, sludge on the outer surface of the filter element rapidly falls off under the action of the gas, and downward water flow of the backwashing liquid outlet valve falls into the cone part of the barrel body to realize the falling off of the sludge; after settling, the sludge is concentrated at the bottom of the cone, a slag discharge valve F2 is opened, and a filter cake is discharged through a slag discharge port; the processes of filtering, backwashing, slag discharging and the like are all automatically controlled and finished by the integrated controller.

When the clear liquid branch valve F5 communicated with the 1/2 filter element in the barrel is closed, the clear liquid branch valve F5 communicated with the other 1/2 filter element is opened at the same time, and then continuous filtration can be realized.

The backwashing operation adopts time control or differential pressure control, when a timing cleaning value or the differential pressure between an inlet and an outlet in a control system reaches a set value, the PLC automatic control system immediately starts the backwashing action to clean the filter elements one by one so as to maintain the cleanness of the surfaces of the filter elements, so that the filter system can constantly maintain high-efficiency operation.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.

Claims

1. The utility model provides an automatic continuous filtration equipment of backwash, includes staving (1), its characterized in that:

the barrel body (1) is a closed cavity and comprises an upper barrel body (101) and a lower barrel body (102); the top of the upper barrel body (101) is provided with a pressure indicating device (4) and a pressure relief port F3, and the pressure indicating device (4) is communicated with the inside of the upper barrel body (101);

a plurality of groups of supporting tubes (2) are arranged at the upper part of the lower barrel body (102), and each group of filtering elements (3) is connected with the corresponding supporting tube (2) through a keel end socket;

a clear liquid branch valve F5 and a backflushing air inlet valve F4 are arranged between each group of support tubes (2) and the clear liquid main port F6; the recoil air inlet valve F4 is communicated with an air source;

a back flush liquid outlet valve F7 is arranged at the lower part of the lower barrel body (102), and the back flush liquid outlet valve F7 is communicated with the stock solution pool;

a liquid inlet F1 on the lower barrel body (102) is connected to a stock solution pool through a connecting pipeline;

the bottom of the lower barrel body (102) is provided with a slag discharge port F2.

2. An automatic backwash continuous filter apparatus as claimed in claim 1, wherein: the upper barrel body (101) is connected with the lower barrel body (102) through a flange.

3. An automatic backwash continuous filter apparatus as claimed in claim 2, wherein: the filter element (3) comprises a standby group and a working group.