CN202155098U

CN202155098U - Filtering device

Info

Publication number: CN202155098U
Application number: CN2011201939339U
Authority: CN
Inventors: 师杰; 赵科; 高波; 郭悦波
Original assignee: Yunnan Dahongshan Pipeline Co Ltd
Current assignee: Yunnan Dahongshan Pipeline Co Ltd
Priority date: 2011-06-10
Filing date: 2011-06-10
Publication date: 2012-03-07
Anticipated expiration: 2021-06-10

Abstract

The utility model relates to a filtering device, which comprises a head water tank (1) and a ceramic filter (2). The filtering device is characterized in that a filtering and draining device (3) is further arranged on a drain pipe between the head water tank (1) and the ceramic filter (2). When the filtering device is in normal operation, a third changeover valve is closed, a first changeover valve and a second changeover valve are opened, and backwashing water enters the ceramic filter through the head water tank, the first changeover valve, the filtering drain device and the second changeover valve. When the filtering and draining device is cleaned, the first changeover valve and the second changeover valve are closed while the third changeover valve is opened, the backwashing water enters the ceramic filter through the head water tank and the third changeover valve, and the valves are switched into normal operation after the filtering and draining device is cleaned. By the aid of the filtering device without shutdown, cleanness of the backwashing water is ensured, and the service life of a filter plate is prolonged.

Description

A kind of filter

Technical field

The utility model belongs to solid material dehydration field, relates in particular to a kind of device that filters filtrating.

Background technology

The ceramic filter backwashing water though be to cross the clear water of filtration through the dead-weight filter, unify to flow to through elevated tank that ceramic filter is interior to be used as backwashing water.Elevated tank is in long use, and too many impurity has been saved bit by bit in the inside, and factory generally is production continuously in 24 hours, and it is too high to get off to clear up the required cost of elevated tank to the machine full cut-off, also unrealistic.But the more backwashing water of impurity gets into ceramic filter and causes the filter lifetime easily, and the demineralization ability of complete equipment seriously descends.

Be illustrated in figure 1 as the filter of present use; Recoil water directly gets into ceramic filter through elevated tank; Impurity in the recoil water also directly gets into filter, and the impurity in the long recoil water of time one will slowly stop up the hole of ceramic filter plate, and its demineralization ability is seriously descended.

Summary of the invention

The utility model has designed a kind of filter, and its impurity that has solved in the recoil water stops up ceramic filter, and then causes the problem of filter lifetime.

In order to solve the technical problem of above-mentioned existence, the utility model has adopted following scheme:

A kind of filter comprises elevated tank and ceramic filter, it is characterized in that: on the blow-off line between said elevated tank and the said ceramic filter, also be provided with filtering and draining device.

Further; Be respectively equipped with first conversion valve and second conversion valve in said filtering and draining device both sides; Above said filtering and draining device, also be provided with the maintenance pipeline; On said maintenance pipeline, be provided with the 3rd conversion valve, said first conversion valve and second conversion valve are arranged in the loop of said blow-off line and said maintenance pipeline formation.

Further, said filtering and draining device mainly comprises blowoff valve and cylindrical metal shell; Described blowoff valve is arranged on the bottom of said cylindrical metal shell, in described cylindrical metal shell, also is provided with filtering material.

Further, the material of said cylindrical metal shell is a stainless steel.

Further, said filtering material is filter paper, filter cloth or filter screen.

Further, said filtering material is columniform filter paper.

Further, the quantity of said columniform filter paper is at least 2.

Compared with prior art, this utility model has following beneficial effect:

(1) the utility model makes the backwashing water secondary add strong filter owing in the device that filters filtrating, be provided with filtering and draining device, when guaranteeing that recoil water is pure, in the service life of having improved filter, has reduced production cost.

(2) small and exquisite, the easy cleaning of the filtering and draining device structure in the utility model, blowdown convenience, with low cost.

(3) the utility model has guaranteed under situation about not stopping production, can clean filtering and draining device owing to be provided with two conversion valves, two backwashing water pipelines, has further reduced production cost.

Description of drawings

Fig. 1: the backwashing water piping diagram of prior art;

Fig. 2: first kind of backwashing water piping diagram of the utility model;

Fig. 3: the utility model filtering and draining device structural representation;

Fig. 4: second kind of backwashing water piping diagram of the utility model.

Description of reference numerals:

1-elevated tank; 2-ceramic filter; 3-filtering and draining device; 4-the first conversion valve; 5-the second conversion valve; 6-the three conversion valve;

31-blowoff valve; 32-cylindrical metal shell; 33-filter paper.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further specified:

Fig. 2 shows a kind of filter, comprises elevated tank 1 and ceramic filter 2, on the blow-off line between elevated tank 1 and the ceramic filter 2, also is provided with filtering and draining device 3.This device can realize recoiling secondary filter of water, the impurity in the water of also can avoiding recoiling stops up ceramic filter, and then causes the problem of filter lifetime.

Fig. 4 shows a kind of filter of best results, comprises elevated tank 1 and ceramic filter 2, on the blow-off line between elevated tank 1 and the ceramic filter 2, also is provided with filtering and draining device 3.Be respectively equipped with first conversion valve 4 and second conversion valve 5 in filtering and draining device 3 both sides; Above filtering and draining device 3, also be provided with the maintenance pipeline; On said maintenance pipeline, be provided with the loop that the 3rd conversion valve 6, the first conversion valves 4 and second conversion valve 5 are arranged in blow-off line and said maintenance pipeline formation.As shown in Figure 3, filtering and draining device 3 mainly comprises blowoff valve 31 and cylindrical metal shell 32; Blowoff valve 31 is arranged on the bottom of cylindrical metal shell 32, in cylindrical metal shell 32, also is provided with many columniform filter papers 33.Wherein the material of cylindrical metal shell 32 is a stainless steel.

The operation principle of this device is following:

During operate as normal, the 3rd conversion valve 6 is closed, and first conversion valve 4 and second conversion valve 5 are opened; Backwashing water is through elevated tank 1, first conversion valve 4, second conversion valve 5; Filtering and draining device 3, entering ceramic filter 2, the recoil water of this moment has passed through secondary filter, and the impurity level that contains is seldom; Be not easy to cause the obstruction of ceramic filter 2, prolonged the service life of filter.

When filtration blowdown apparatus 3 needs to change filter paper 33 or needs cleaning; Close first conversion valve 4 and second conversion valve 5; Open the 3rd conversion valve 6 simultaneously; This moment backwashing water can be through elevated tank 1, the 3rd conversion valve 6, get into ceramic filter 2, after changing or cleaning out, switch valve is to normal operating conditions again.

So just realized under situation about not stopping production in 24 hours, guaranteed the cleaning of recoil water, prolonged the service life of filter.

Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the realization of the utility model does not receive the restriction of aforesaid way; As long as adopted method design of the utility model and the various improvement that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all in the protection domain of the utility model.

Claims

1. a filter comprises elevated tank (1) and ceramic filter (2), it is characterized in that: on the blow-off line between said elevated tank (1) and the said ceramic filter (2), also be provided with filtering and draining device (3).

2. according to the said filter of claim 1; It is characterized in that: be respectively equipped with first conversion valve (4) and second conversion valve (5) in said filtering and draining device (3) both sides; Also be provided with the maintenance pipeline in said filtering and draining device (3) top; On said maintenance pipeline, be provided with the 3rd conversion valve (6), said first conversion valve (4) and second conversion valve (5) are arranged in the loop of said blow-off line and said maintenance pipeline formation.

3. according to claim 1 or 2 said filters, it is characterized in that: said filtering and draining device (3) mainly comprises blowoff valve (31) and cylindrical metal shell (32); Described blowoff valve (31) is arranged on the bottom of said cylindrical metal shell (32), in described cylindrical metal shell (32), also is provided with filtering material.

4. according to the said filter of claim 3, it is characterized in that: the material of said cylindrical metal shell (32) is a stainless steel.

5. according to the said filter of claim 4, it is characterized in that: said filtering material is filter paper, filter cloth or filter screen.

6. according to the said filter of claim 5, it is characterized in that: said filtering material is columniform filter paper (33).

7. according to the said filter of claim 6, it is characterized in that: the quantity of said columniform filter paper (33) is at least 2.