CN103263795A - External filter - Google Patents
External filter Download PDFInfo
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- CN103263795A CN103263795A CN2013100971222A CN201310097122A CN103263795A CN 103263795 A CN103263795 A CN 103263795A CN 2013100971222 A CN2013100971222 A CN 2013100971222A CN 201310097122 A CN201310097122 A CN 201310097122A CN 103263795 A CN103263795 A CN 103263795A
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- filter screen
- filter
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- cylindrical shell
- external
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Abstract
An external filter belongs to the technology field of wet desulphurization filtering, wherein the external filter comprises a cylindrical shell and a filter screen; the cylindrical shell is provided with a slurry inlet tube and a slurry outlet tube; the filter screen is concave along the flow direction of slurry. The external filter adopts a concave filter screen, increases filtering area, raises filtering speed, and reduces filter screen obstruction. The filter is set outside an absorbing tower, which is used for on-site filter screen protection and maintenance; the production efficiency is improved, and the maintenance cost is saved, which is suitable for popularization and application in production operation.
Description
Technical field
The invention belongs to the wet desulphurization filtration art, be specifically related to a kind of external filter.
Background technology
At present, the slurry circulating pump inlet filter on absorption tower is installed in inside, absorption tower in the wet desulfurization system, namely being arranged on the absorption tower slurries goes out before the tower, but this traditional built-in filter screen is in use cleared up inconvenience, is needed the stoppage in transit desulphurization system, the expense that wastes time and energy is bigger, can not satisfy the requirement of national energy-saving and emission-reduction, racks up slurries and just can enter and safeguard filter screen in the tower, and traditional rectangle strainer filtering poor effect, stop up normal production of filter screen influence easily and operate.
Summary of the invention
Goal of the invention: at the deficiencies in the prior art, the object of the present invention is to provide a kind of external filter, not only can clear up filter screen easily, preventing from stopping up normal production of filter screen influence operates, adopt special filter structure simultaneously, can be good at isolating slurries impurity, the slurry circulating pump impeller of avoiding wearing and tearing, wash away the line with rubber pipeline, plug nozzle.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution used in the present invention is as follows:
A kind of external filter comprises cylindrical shell and filter screen, is provided with slurry inlet pipe and slurries outlet at cylindrical shell, the concave structure of described filter screen for presenting along slurry stream to direction.
Described concave structure is made up of a U-shaped unit, a V-arrangement unit or a W shape unit at least.
Described concave structure is made of successively side by side a plurality of U-shapeds unit, a plurality of V-arrangements unit or a plurality of W shapes unit.
Described concave structure is made of side by side several unit that are selected from U-shaped unit, V-arrangement unit and the W shape unit at least.
Be provided with cover at described cylindrical shell.
This external filter is arranged on the outside on slurries absorption tower, not only is beneficial to the workman and safeguards the external filter, can clear up filter screen at any time simultaneously, conveniently produces running; Filter screen has significantly reduced the generation of filtering the dead angle by adopting the concave structure that increases filtration contact area, has increased filter area, has improved the rate of filtration, and then has improved production efficiency, has saved production cost; By at cylindrical shell cover being set, can open the stopping state that cover is observed filter screen at any time, be convenient in time safeguard filter screen.
External filter of the present invention increases filter area by selecting any one or the filter screen of several combining structures arbitrarily in U-shaped, V-arrangement, the W shape greatly with respect to traditional rectangle filter screen; Slurries enter in the cylindrical shell by the slurry inlet pipe, and during filter screen by concave structure, because filter area increases, the rate of filtration improves, and slurries are discharged by the slurries outlet fast and waltz through filter screen then, finish once and filter.
Beneficial effect: external filter of the present invention, by adopting the filter screen of concave structure, increase filter area, improved the rate of filtration, reduced the stopping state of filter screen simultaneously, by filter being arranged on the outside, absorption tower, when being easy to on-the-spot the use to the care and maintenance of filter screen, improve production efficiency, saved maintenance cost; Suit in producing running, to apply.
Description of drawings
Fig. 1 is external structure of filter schematic diagram;
Fig. 2 is the vertical view of external filter;
Fig. 3 is the filter screen schematic diagram of the concave structure formed side by side of two V-arrangement unit;
Fig. 4 is the filter screen schematic diagram of the concave structure formed side by side of a U-shaped unit and V-arrangement unit.
The specific embodiment
Below in conjunction with the specific embodiment, the present invention is described further.
As depicted in figs. 1 and 2, the external filter comprises cylindrical shell 1 and filter screen 2, also is communicated with slurry inlet pipe 4 and slurries outlet 5 on cylindrical shell 1, and wherein, cylindrical shell 1 is provided with cover 3.Be provided with the concave structure that presents along slurry stream to direction at filter screen 2.This concave structure is made up of a U-shaped unit, a V-arrangement unit or a W shape unit at least, can be formed side by side successively by a plurality of U-shapeds unit, a plurality of V-arrangements unit or a plurality of W shapes unit, can be formed side by side by several unit that are selected from U-shaped unit, V-arrangement unit and the W shape unit.The filter screen 2 of Fig. 2 is typical U-shaped structural representation.Fig. 3 is the filter screen schematic diagram of the concave structure formed side by side of two V-arrangement unit.Fig. 4 is the filter screen schematic diagram of the concave structure formed side by side of a U-shaped unit and V-arrangement unit.
The course of work: slurry inlet pipe 4 enters slurries in the space that the opening of U-shaped filter screen 2 and cylindrical shell 1 form, slurries are by U-shaped filter screen 2, because special filter structure, filter area is big, dope filtration speed is fast, slurries are discharged to outside the filter screen smoothly, and the slurries after filtering then flow out through slurries outlet 5, finish once and filter.When regular maintenance, because filter is external, the cover 3 of opening the external filter can maintain, and very simple and convenient do not need to enter in the tower and safeguard.
External filter of the present invention, by adopting the filter screen of concave structure, increase filter area, improved the rate of filtration, reduced the stopping state of filter screen simultaneously, by filter being arranged on the outside, absorption tower, when being easy to on-the-spot the use to the care and maintenance of filter screen, improve production efficiency, saved maintenance cost; Suit in producing running, to apply.
Claims (5)
1. an external filter comprises cylindrical shell (1) and filter screen (2), is provided with slurry inlet pipe (4) and slurries outlet (5) at cylindrical shell (1), it is characterized in that: at the concave structure of described filter screen (2) for presenting along slurry stream to direction.
2. a kind of external filter according to claim 1, it is characterized in that: described concave structure is made up of a U-shaped unit, a V-arrangement unit or a W shape unit at least.
3. external filter according to claim 1 and 2, it is characterized in that: described concave structure is made of successively side by side a plurality of U-shapeds unit, a plurality of V-arrangements unit or a plurality of W shapes unit.
4. external filter according to claim 1 and 2, it is characterized in that: described concave structure is made of side by side several unit that are selected from U-shaped unit, V-arrangement unit and the W shape unit at least.
5. a kind of external filter according to claim 1 is characterized in that: be provided with cover (3) at described cylindrical shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100971222A CN103263795A (en) | 2013-03-25 | 2013-03-25 | External filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100971222A CN103263795A (en) | 2013-03-25 | 2013-03-25 | External filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103263795A true CN103263795A (en) | 2013-08-28 |
Family
ID=49007482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100971222A Pending CN103263795A (en) | 2013-03-25 | 2013-03-25 | External filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103263795A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11239703A (en) * | 1998-02-25 | 1999-09-07 | Minoru Tsuchiya | Slow dirt-removing screen device |
| CN1623636A (en) * | 2004-10-26 | 2005-06-08 | 贡有成 | Folded tubular membrane and filter formed by same |
| CN101474528A (en) * | 2008-12-31 | 2009-07-08 | 宁波金远东工业科技有限公司 | Device for removing sulfuric dioxide in exhaust gas |
| CN201316581Y (en) * | 2008-12-02 | 2009-09-30 | 薛文伟 | Filter |
| CN201807236U (en) * | 2010-10-20 | 2011-04-27 | 国电科学技术研究院 | External gypsum slurry filter of desulfurization absorbing tower |
| CN203208752U (en) * | 2013-03-25 | 2013-09-25 | 扬州润达气动液压成套设备有限公司 | External filter |
-
2013
- 2013-03-25 CN CN2013100971222A patent/CN103263795A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11239703A (en) * | 1998-02-25 | 1999-09-07 | Minoru Tsuchiya | Slow dirt-removing screen device |
| CN1623636A (en) * | 2004-10-26 | 2005-06-08 | 贡有成 | Folded tubular membrane and filter formed by same |
| CN201316581Y (en) * | 2008-12-02 | 2009-09-30 | 薛文伟 | Filter |
| CN101474528A (en) * | 2008-12-31 | 2009-07-08 | 宁波金远东工业科技有限公司 | Device for removing sulfuric dioxide in exhaust gas |
| CN201807236U (en) * | 2010-10-20 | 2011-04-27 | 国电科学技术研究院 | External gypsum slurry filter of desulfurization absorbing tower |
| CN203208752U (en) * | 2013-03-25 | 2013-09-25 | 扬州润达气动液压成套设备有限公司 | External filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130828 |