CN202526983U - Novel filter screen of rotary drum filter - Google Patents
Novel filter screen of rotary drum filter Download PDFInfo
- Publication number
- CN202526983U CN202526983U CN2012201178099U CN201220117809U CN202526983U CN 202526983 U CN202526983 U CN 202526983U CN 2012201178099 U CN2012201178099 U CN 2012201178099U CN 201220117809 U CN201220117809 U CN 201220117809U CN 202526983 U CN202526983 U CN 202526983U
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- filter screen
- filter
- novel
- wedge
- rotary drum
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Abstract
The utility model discloses a novel filter screen of a rotary drum filter. The novel filter screen is wrapped on the outside of the circumference of a rotary drum filter body, the novel filter screen is a single layer filter screen which is formed by connecting a plurality of filtration units through a plurality of pressing bars, each filtration unit comprises a wedge-shaped filter screen and two fixing bars, the section of each fixing bar is L-shaped, the two fixing bars are oppositely and symmetrically arranged, the quadrate wedge-shaped filter screen is welded between parallel edges of each two fixing bars, square grooves are arranged on the pressing bars along the length direction, and one sides of the fixing bars in adjacent filtration units, which are connected with wedge-shaped filter screens, are inserted into the square grooves of the pressing bars together. The novel filter screen of the rotary drum filter has the advantages that the novel filter screen is the single layer filter screen which is formed by connecting the wedge-shaped filter screens, the slag retaining between existing thick and thin layer filter screens is avoided, the filter efficiency is high, simultaneously the flexibility of the novel filter screen is small, the rigidity is high, the novel filter screen is not prone to be deformed and damaged, besides, the capability of resisting slag water impact by the filter screen is strengthened, and the wedge-shaped filter screens and the pressing bars are not prone to be broken after pulled.
Description
Technical field
The utility model relates to a kind of novel filter screen of drum filter.
Background technology
In blast furnace ironmaking was produced, the processing of slag mainly adopted the hydraulic discharged slag mode to carry out, and main processing technology has: end filter (OCP) method, Lhasa (RASA) method, Yin Ba (INBA) method, Tula (TYNA) method, Ming Teke (MTC) method etc.Wherein, Yin Ba (INBA) method slag treatment technology be with slag-water slurry after rotary drum dehydration, the processing method that transports by belt.Concrete technology is following: with the slag after molten iron separates; Get into the slag granulation district through slag runner, the high-velocity flow in the blowing case makes its shrend granulation cooling, after further granulation of grain slag groove and buffering; Flow into the grain slag distributor in the rotary drum, be evenly distributed in the drum filter.Slag is scraped band by the blade in the drum, is circular motion with the rotation of rotary drum.Slag when going to rotary drum upper half place, is fallen on the belt in the deep drum behind rotary drum lower half elimination part water, delivers to pan tank through belt with the distribution belt and stores, the entrucking outward transport.Drum filter adopts compressed air and rinse water that filter screen is carried out the continuity flushing, in case filter screen stops up in rotary course.
In Yin Ba (INBA) the method slag handling system, drum filter is a nucleus equipment.Outside at the drum filter body along the circumferential direction is provided with two-layer stainless steel wire mesh: the thin layer of twine is interior, filtration; The twine more coarse layer plays a supportive role outside.But because fine-structure mesh is metal knitted net, flexible big, rigidity is little, is prone to distortion, breakage; Some nets of every metafiltration net all are connected with the end face of press strip and form an integral body, and the ability that this kind connected mode opposing pulp water impacts is relatively poor, pulls apart easily between filter screen and the press strip after use a period of time; Be prone to phenomenons such as cinder inclusion between thickness metafiltration net.So existing screen pack has had a strong impact on whole technical process and handled, its service life is short, has increased each item cost of equipment operation.
Summary of the invention
The utility model problem to be solved provides a kind of novel filter screen of drum filter, and it is simple in structure, intensity is high, long service life.
The novel filter screen of the utility model drum filter is characterized in that: it is wrapped in the circumference outside of drum filter body, the individual layer filter screen that several filter elements of serving as reasons are formed by connecting through several press strips; Each filter element comprises wedge type screen pack, two fixed strips, and the fixed strip cross section is " L " type, and two fixed strips are symmetric arrangement in opposite directions, between the parallel edges of two fixed strips, is welded with square wedge type screen pack; Press strip has square groove along its length, and insert in the square groove of press strip jointly on a limit that links to each other with the wedge type screen pack in the fixed strip in the adjacent filter element.
The individual layer filter screen of this novel filter screen for being formed by connecting the wedge type screen pack avoided the appearance of cinder inclusion phenomenon between existing thickness metafiltration net, and filter efficiency is good.Simultaneously, this novel filter screen flexible little, rigidity is big, and is not yielding and damaged.In addition, insert in the square groove of press strip jointly on a limit that links to each other with the wedge type screen pack in the fixed strip in the adjacent filter element, makes filter screen strengthen the ability that the opposing pulp water impacts, and wedge shaped filter net and press strip are difficult for pulling apart.Therefore, this filter structure is simple, intensity is high, long service life.
Description of drawings
Fig. 1 be this novel in the structural representation of each filter element.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the part drawing of press strip.
Fig. 4 is the left view of Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation:
Can know from Fig. 1, Fig. 2, Fig. 3, Fig. 4, the novel filter screen of this novel drum filter, it is wrapped in the circumference outside of drum filter body, the individual layer filter screen that several filter elements of serving as reasons are formed by connecting through several press strips 5.
Each filter element comprises wedge type screen pack 2, two fixed strips 1, and fixed strip 1 cross section is " L " type, and two fixed strips 1 are symmetric arrangement in opposite directions, between the parallel edges of two fixed strips 1, is welded with square wedge type screen pack 2; Press strip 5 has square groove along its length, and insert in the square groove of press strip 5 jointly on a limit that links to each other with wedge type screen pack 2 in the fixed strip 1 in the adjacent filter element.Wherein, wedge shaped filter net 2 can require to select different specifications according to filtering accuracy, to satisfy the needs that use.Because insert in the square groove of press strip 5 on a limit of fixed strip 1 in the filter element, wedge shaped filter net 2 when receiving pulp water and impact and press strip 5 be difficult for pulling apart, improved the service life of filter screen.
As this novel a kind of optimal way, press strip 5 is processed with several mounting holes along its length, and fixed strip 1 also is processed with several mounting holes on corresponding position.Like this, after bolt passes from mounting hole filter screen is closely linked to each other with the drum filter body.Wherein the effect of mounting hole is: avoid skeleton buckling deformation because of the drum filter body to cause bolt centre-to-centre spacing to change to influence and install and use.
As this novel another optimal way, each filter element also comprises two horizontal reinforcements 3, and every horizontal reinforcement 3 all is welded in the fixed strip 1 and wedge type screen pack 2 inboard on contacted limit not; As this novel another kind of optimal way, filter element also comprises several walings 4, and waling 4 is welded on up and down between two horizontal reinforcements 3.Laterally reinforcement 3, waling 4 make the rigidity of wedge type screen pack 2 obtain reinforcement, and filter screen is flexible little, and is not yielding and damaged.
Claims (4)
1. the novel filter screen of drum filter is characterized in that: it is wrapped in the circumference outside of drum filter body, the individual layer filter screen that several filter elements of serving as reasons are formed by connecting through several press strips (5); Each filter element comprises wedge type screen pack (2), two fixed strips (1); Fixed strip (1) cross section is " L " type; Two fixed strips (1) are symmetric arrangement in opposite directions, between the parallel edges of two fixed strips (1), is welded with square wedge type screen pack (2); Press strip (5) has square groove along its length, and insert in the square groove of press strip (5) jointly on a limit that links to each other with wedge type screen pack (2) in the fixed strip in the adjacent filter element (1).
2. novel filter screen according to claim 1 is characterized in that: press strip (5) is processed with several mounting holes along its length, and fixed strip (1) also is processed with several mounting holes on corresponding position.
3. novel filter screen according to claim 1 is characterized in that: each filter element also comprises two horizontal reinforcements (3), and every horizontal reinforcement (3) all is welded in the fixed strip (1) and wedge type screen pack (2) inboard on contacted limit not.
4. novel filter screen according to claim 3 is characterized in that: filter element also comprises several walings (4), and waling (4) is welded on up and down between two horizontal reinforcements (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201178099U CN202526983U (en) | 2012-03-27 | 2012-03-27 | Novel filter screen of rotary drum filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201178099U CN202526983U (en) | 2012-03-27 | 2012-03-27 | Novel filter screen of rotary drum filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202526983U true CN202526983U (en) | 2012-11-14 |
Family
ID=47128191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201178099U Expired - Fee Related CN202526983U (en) | 2012-03-27 | 2012-03-27 | Novel filter screen of rotary drum filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202526983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550354A (en) * | 2017-09-27 | 2019-04-02 | 浙江盾安人工环境股份有限公司 | Air purifying filter mesh |
-
2012
- 2012-03-27 CN CN2012201178099U patent/CN202526983U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550354A (en) * | 2017-09-27 | 2019-04-02 | 浙江盾安人工环境股份有限公司 | Air purifying filter mesh |
| CN109550354B (en) * | 2017-09-27 | 2022-09-06 | 浙江盾安人工环境股份有限公司 | Air purification filter screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20180327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |