CN202113673U - Liquid filter - Google Patents

Abstract

The utility model discloses a liquid filter, which comprises: an upper cylinder body, which is provided with a liquid outlet; a lower cylinder body, which is provided with a liquid inlet port and a compressed air port; A plurality of through holes are arranged in the partition between the lower cylinders; a plurality of filter elements are arranged in the lower cylinder and combined with the through holes in the partition. The liquid filter according to the utility model can be cleaned automatically without removing the filter element for manual cleaning.

Description

a liquid filter

technical field

The utility model relates to a filter.

Background technique

In industrial production, industrial barren liquid or industrial waste liquid contains a large amount of suspended impurities. Such industrial poor liquid or industrial waste liquid can be reused or recycled only after the suspended impurities therein have to be removed through a liquid filter.

For example, in the absorption liquid circulation absorption method of sintering flue gas, first, in the sulfur dioxide absorption system, the flue gas containing a large amount of _SO2 gas and a large amount of dust and other components is in contact with the desulfurization solution (absorption liquid), so that the SO in the flue gas ₂ Gas and a large amount of dust and other components enter the desulfurization solution to form a "rich solution" containing a large amount of _SO2 ; then, in the sulfur dioxide desorption system, the rich solution containing the above components desorbs _SO2 gas, and the _SO2 gas is recycled. In this way, the sintering flue gas desulfurization solution from which _SO2 gas is desorbed contains a large amount of suspended matter, so that the desulfurization solution becomes a "lean solution" that does not contain _SO2 and is degraded by suspended matter, etc. In order to make the deteriorated desulfurization lean liquid continue to be used in the whole system to circulate and absorb sintering flue gas, it is necessary to remove a large amount of suspended solids in the desulfurization lean liquid so that it can be used to absorb flue gas in the sulfur dioxide absorption system.

Usually, a liquid filter is used to remove the suspended solids in the desulfurized lean liquid, so as to facilitate the reuse of the desulfurized lean liquid. In the process of filtering the desulfurized lean liquid with a filter, the suspended matter in the desulfurized lean liquid will be deposited on the surface of the filter element of the filter, and the longer the filter runs, the more suspended matter will be deposited on the surface of the filter element , causing the filtration efficiency of the filter to be greatly reduced. Therefore, the filter element needs to be disassembled from the filter during production to remove the suspended matter deposited on the surface of the filter element. This not only wastes manpower, but also greatly reduces production efficiency.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a liquid filter which can automatically remove the suspended matter deposited on the surface of the filter element.

The liquid filter according to the utility model comprises: an upper cylinder body, which is provided with a liquid outlet; a lower cylinder body, which is provided with a liquid inlet port and a compressed air port; A plurality of through holes are arranged in the partition; a plurality of filter elements are arranged in the lower cylinder and combined with the through holes in the partition.

According to the liquid filter of the utility model, a sewage outlet is arranged at the bottom of the lower cylindrical body. The sewage outlet is provided with a valve. The compressed air port is provided with a valve. The filter core is provided with a plurality of liquid inlets, and the filter screen is covered on the outside of the filter core. The filter screen is wrapped on the outside of the filter element by stainless steel wire.

According to the liquid filter of the utility model, the liquid in the lower cylinder can be stirred by feeding compressed air through the compressed air port provided on the lower cylinder, and the suspended matter deposited on the surface of the filter element can be washed away, thereby completing the cleaning of the filter element surface .

Description of drawings

These and/or other aspects and advantages of the present invention will become clearer and more comprehensible through the following description of exemplary embodiments taken in conjunction with the accompanying drawings, in which:

Fig. 1 is a sectional view of a liquid filter according to the present invention;

Fig. 2 is a sectional view taken along line A-A of Fig. 1;

Fig. 3 is a schematic diagram of a filter element of a liquid filter according to the present invention.

Detailed ways

The liquid filter according to the present invention will be described in detail below with reference to the accompanying drawings and exemplary embodiments.

Fig. 1 is a sectional view of a liquid filter according to the present invention, and Fig. 2 is a sectional view taken along line A-A of Fig. 1 .

Referring to FIGS. 1 and 2 , the liquid filter according to the present invention includes an upper cylinder 1 , a separator 2 , a lower cylinder 3 and a plurality of filter elements 4 .

The top of the upper cylinder 1 can be provided with a cover plate 5, but the utility model is not limited thereto, for example, the upper cylinder 1 and the cover plate 5 can be formed as one. According to an exemplary embodiment of the present invention, the upper barrel 1 and the cover plate 5 may be combined with each other by bolts 10 . The side wall of the upper cylinder 1 can be provided with a liquid outlet 6 , but the utility model is not limited thereto, and the liquid outlet 6 can be provided on the cover plate 5 .

The partition plate 2 is arranged between the upper cylinder body 1 and the lower cylinder body 3, and combines the upper cylinder body 1 and the lower cylinder body 3 together. The upper cylinder 1 , the partition plate 2 and the lower cylinder 3 may be combined with each other by bolts 11 . A plurality of through holes 12 are provided in the separator 2 for combining with the filter element 4 .

The lower cylinder body 3 is provided with a liquid inlet 7 and a compressed air port 9 . Preferably, the liquid inlet port 7 and the compressed air port 9 are arranged at the lower part of the lower cylinder body 3 , that is, the liquid inlet port 7 and the compressed air port 9 are preferably arranged under the filter element 4 . When suspended matter is deposited on the surface of the filter element 4 and affects the filtration of the liquid, compressed air can be blown into the lower cylinder 3 through the compressed air port 9 to stir the liquid in the lower cylinder 3 to deposit on the surface of the filter element 4. The suspended solids are washed away, so as to achieve the purpose of washing the filter element 4. Although not shown, a valve may be provided at the compressed air port 9 to prevent the liquid in the lower cylinder 3 from flowing out through the compressed air port 9 when the filter element is not cleaned. The bottom of the lower cylinder body 3 is provided with a sewage outlet 8 to discharge the sewage containing the washed suspended matter from the filter. The sewage outlet 8 is provided with a valve (not shown), and the valve is closed when the sewage outlet 8 is not used.

A plurality of filter elements 4 are disposed inside the lower cylinder 3 and corresponding to the plurality of through holes 12 in the separator 2 . That is, the filter elements 4 are coupled to the through holes 12 so that liquid enters the upper cylinder 1 from the lower cylinder 3 through the plurality of filter elements 4 .

Fig. 3 is a schematic diagram of a filter element of a liquid filter according to the present invention.

Referring to FIG. 3 , a plurality of liquid inlets H are arranged on the filter element 4 . The filter screen (not shown) is coated on the surface of the filter core 4 by stainless steel wire 18, so that the filter screen can be easily disassembled and installed when the filter screen is corroded and cannot be used any longer and the filter screen is replaced. The label 17 among Fig. 3 is a pressing plate, and its effect is to push down the end that the strainer screen perks.

According to an exemplary embodiment of the present invention, the filter element 4 is coupled to the through hole 12 of the separator 2 through the protrusion 16 and the bolt passing through the bolt hole 15 . But the utility model is not limited thereto, and the filter element 4 can be fixed to the through hole 12 of the separator 2 in other ways.

The operation of the liquid filter according to the present invention will be described in detail below.

During use, the liquid enters the lower cylinder through the liquid inlet 7, and enters the upper cylinder 1 through the liquid inlet H of the filter element 4 under the action of pressure, and then flows out of the filter through the liquid outlet 6. Since the liquid inlet H of the filter core 4 is coated with a filter screen, the suspended matter in the liquid is deposited on the surface of the filter core 4 . In this way, after the liquid filter has been in operation for a long time, too much suspended matter is deposited on the surface of the filter element 4, which greatly reduces the filtration efficiency of the liquid filter. At this time, stop feeding liquid into the liquid filter, open the valve of the compressed air port 9, and blow compressed air into the lower cylindrical body 3 through the compressed air port 9. The liquid in the cylinder 3 is stirred by the compressed air to wash away the sediment deposited on the surface of the filter element 4 . Then, the valve of the compressed air port 9 is closed and the valve of the drain port 8 is opened to discharge the liquid containing the washed-out deposits. After the liquid containing the washed sediment is drained, the valve of the sewage outlet 8 is closed, so that the filter can continue to be used to filter the liquid.

From the above description of the liquid filter according to the exemplary embodiment of the present invention, it can be seen that the liquid filter according to the present invention can be automatically cleaned through the compressed air port without removing the filter element for manual cleaning.

Claims (6)

1. a liquid filter is characterized in that, said liquid filter comprises:

Upper shell is provided with liquid outlet;

Lower shell is provided with inlet and compressed air mouth;

Dividing plate is arranged between upper shell and the lower shell, in dividing plate, is provided with a plurality of through holes;

A plurality of filter cores are arranged in the lower shell and are attached to the through hole in the dividing plate.

2. liquid filter as claimed in claim 1 is characterized in that, is provided with sewage draining exit in the bottom of lower shell.

3. liquid filter as claimed in claim 2 is characterized in that sewage draining exit is provided with valve.

4. liquid filter as claimed in claim 1 is characterized in that the compressed air mouth is provided with valve.

5. liquid filter as claimed in claim 1 is characterized in that filter core is provided with a plurality of inlets, and filter screen is coated on the outside of filter core.

6. liquid filter as claimed in claim 5 is characterized in that, filter screen is coated on the outside of filter core through the stainless steel steel wire.

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