CN206853232U - A kind of dismountable external lime stone slurry filter - Google Patents

A kind of dismountable external lime stone slurry filter Download PDF

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Publication number
CN206853232U
CN206853232U CN201720591292.XU CN201720591292U CN206853232U CN 206853232 U CN206853232 U CN 206853232U CN 201720591292 U CN201720591292 U CN 201720591292U CN 206853232 U CN206853232 U CN 206853232U
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China
Prior art keywords
filter
filter screen
lime stone
valve
box
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CN201720591292.XU
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Chinese (zh)
Inventor
刘威
林朝扶
张龙飞
唐彬
韩方源
尚美洁
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Electric Power Research Institute of Guangxi Power Grid Co Ltd
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Electric Power Research Institute of Guangxi Power Grid Co Ltd
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Abstract

The utility model discloses a kind of dismountable external lime stone slurry filter, it is related to lime stone slurry filter plant technical field.The utility model is by the way that the filter screen of a pocketed is arranged in filter box, and to realize the multiple times of filtration of lime stone slurry, the filter screen of pocketed coordinates quick detachable box cover to realize more easy filter screen cleaning, change.The utility model is arranged between the outlet of lime stone slurry recirculation pump and limestone slurry liquid swirler, and lime stone slurry recirculation pump can be achieved and continuously uninterruptedly operate.

Description

A kind of dismountable external lime stone slurry filter
Technical field
It the utility model is related to lime stone slurry filter plant technical field, more particularly to a kind of dismountable external lime Stone slurry filter.
Background technology
At present, Limestone-gypsum Wet Flue Gas Desulfurization Process technique is widely applied in coal-burning power plant.The cardinal principle of the technique It is:Limestone block and a certain proportion of water are sent into ball mill and are milled into lime stone slurry, then is beaten after slurries thickness is separated Enter and chemical reaction generation gypsum occurs in desulfurizing tower with sulfur dioxide, so as to scrubbing CO_2 pollutant.
Because limestone block adulterates other materials unavoidably in mining production, transportation, in the lime stone slurry ground The debris such as grass cuttings, wooden unit, glass, rubber or fibre object may be contained.Simultaneously because Wet Limestone ball mill grinds energy Power is limited, limestone block that the slurries after grinding are not ground also containing small part, larger-size.And lime stone slurry eddy flow The base diameter of device eddy flow typically only has 30mm or so, when these debris in lime stone slurry and larger-size limestone block When content is excessive, cyclone easily blocks, and so as to cause the lime stone slurry quality of preparation unqualified, causes desulphurization system Failure and desulfuration efficiency decline.
Utility model content
The deficiency for more than, the utility model provide a kind of dismountable external lime stone slurry filter, Neng Gou Have into before cyclone to debris such as grass cuttings, wooden unit, glass, rubber or the fibre objects that may contain in lime stone slurry Effect filtering, to prevent the debris such as grass cuttings, wooden unit, glass, rubber or fibre object from entering cyclone.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that:
A kind of dismountable external lime stone slurry filter, includes inlet ductwork, inlet ductwork valve, Rose Box Body, filter screen, pressure gauge, box cover, export pipeline, export pipeline valve, sewage draining exit pipeline and sewage draining exit pipe valve;It is described Filter box is located above the filter box without top surface, the box cover, is bolted mode and the Rose Box Body phase is fastenedly connected and the box cover is formed a closed structure with the filter box;The inlet ductwork and outlet Pipeline is located at the both sides of the filter box respectively, and the inlet ductwork valve is arranged in the inlet ductwork, the outlet Pipe valve is arranged on the export pipeline, and the inlet ductwork and the height of the interface of the filter box go out less than described in The height of mouth pipeline and the interface of the filter box;The filter screen is in pocketed, opening upwards, described in the filter screen side wall fitting The madial wall of filter box, the upper end of the filter screen are provided with horizontal outer, and the outer of the filter screen is located at the Rose Box Between body and the box cover connecting portion, the bottom of the filter screen connects higher than the inlet ductwork and the filter box Mouthful, the bottom of the filter screen is less than the export pipeline and the interface of the filter box;The pressure gauge is arranged at the mistake Filter box body side surface is to monitor the pressure inside the filter box;The sewage draining exit pipeline is arranged at the filter box bottom, The sewage draining exit pipe valve is arranged on the sewage draining exit pipeline.
Dismountable external lime stone slurry filter provided by the utility model, inlet ductwork connection lime stone slurry Recirculation pump is exported, and export pipeline connection cyclone, when pulping system is run, lime stone slurry was entered by inlet ductwork Filter box body, filter screen are filtered to the lime stone slurry for entering cyclone to prevent grass cuttings in lime stone slurry, wooden unit, glass The debris such as glass, rubber or fibre object enter cyclone.The utility model is arranged at the outlet of lime stone slurry recirculation pump and lime Between stone slurries cyclone, pressure gauge can detect the pressure in filter box, when the pressure in Rose Box body reaches alarm settings During value, it is not necessary to lime stone slurry recirculation pump of stopping transport, only need to open sewage draining exit pipe valve to be discharged by sewage draining exit pipeline Tamper(The debris such as grass cuttings, wooden unit, glass, rubber or fibre object), when with the gradual discharge of tamper, in filter box Pressure is gradually returned in range of normal value, now turns off sewage draining exit pipe valve with normal operation.
On the basis of above-mentioned technical proposal, the utility model also has further optimization and improved.
Further, the inlet ductwork, filter box, export pipeline and sewage draining exit channel interior are provided with line with rubber.
Further, the inlet ductwork valve is ball valve or butterfly valve;The export pipeline valve is ball valve or butterfly valve;Institute It is ball valve or butterfly valve to state sewage draining exit pipe valve.
Further, the filter screen is made up of stainless steel material.
Further, the grid of the filter screen is circular or square, when the filter screen grid for it is circular when, the filter The aperture of the grid of net is 4mm ~ 6mm, when the filter screen grid for it is square when, the length of side of the grid of the filter screen for 4mm ~ 6mm。
Further, the ratio between flow area of the gross area of the grid of the filter screen and the export pipeline is 10:1~20: 1。
Further, the pressure gauge is bourdon gauges or diaphragm manometer.
Compared with prior art, the beneficial effects of the utility model are:The utility model can realize that lime stone slurry follows again Ring pump continuously uninterruptedly operates, even if filter blocks, it is not required that stoppage in transit lime stone slurry recirculation pump;Connected by bolt The filter box connect and box cover easy disassembly, the replaceable of filter screen can be achieved, filter box internal cleaning, filter screen can be facilitated Maintenance, replacing and cleaning etc.;Filter screen is pocketed, the outer of filter screen be located at filter box and box cover connecting portion it Between, it can be directly realized by the taking-up of filter screen when taking box cover apart;Lime stone slurry is needed by filter screen before inlet ductwork is entered Bottom and the filter screen by inlet ductwork side wall, relative to directly be sheet filter screen, can realize and filter twice, tool There are bigger filter area and more preferable filter effect;The setting of line with rubber can avoid lime stone slurry to inlet ductwork, filtering The direct infringement of casing, export pipeline and sewage draining exit pipeline, enhance the stability of equipment and extend the use of equipment Life-span;Rational screen mesh can play good filter effect, and and can avoids tamper occluding device as far as possible.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment The accompanying drawing used is briefly described.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe.Obviously, described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment
Fig. 1 is refer to, the utility model provides a kind of dismountable external lime stone slurry filter, includes import Pipeline 1, inlet ductwork valve 2, filter box 3, filter screen 4, pressure gauge 5, box cover 6, export pipeline 7, export pipeline valve 8th, sewage draining exit pipeline 9 and sewage draining exit pipe valve 10.
Filter box 3 is cube, no top surface, is internally provided with rubber line with rubber, and box cover 6 is located above filter box 3, Mode is bolted to be fastened and connected with filter box 3 and box cover 6 is formed a closed knot with filter box 3 Structure.Inlet ductwork 1 is located at the both sides of filter box 3 with export pipeline 7 respectively, and inlet ductwork 1 and export pipeline 7 are internally provided with Rubber line with rubber;Inlet ductwork valve 2 is ball valve, is arranged in inlet ductwork 1, and export pipeline valve 8 is ball valve, is arranged at outlet On pipeline 7, the height of inlet ductwork 1 and the interface of filter box 3 is less than the height of export pipeline 7 and the interface of filter box 3. Filter screen 4 is in pocketed, is square pocket, opening upwards, and the grid of filter screen 4 is square, and the length of side of the grid of filter screen 4 is 5mm, filter screen 4 are made up of stainless steel material, and the side wall of filter screen 4 is bonded the madial wall of filter box 3, and the upper end of filter screen 4 is provided with horizontal outer, The outer of filter screen 4 is located between filter box 3 and the connecting portion of box cover 6, and the bottom of filter screen 4 is higher than inlet ductwork 1 and mistake The interface of filter box body 3, the bottom of filter screen 4 is less than export pipeline 7 and the interface of filter box 3.Pressure gauge 5 is spring-tube pressure Table, the side of filter box 3 is arranged to monitor the pressure inside filter box 3.Sewage draining exit pipeline 9 is arranged at the bottom of filter box 3 Portion, sewage draining exit pipeline 9 are internally provided with rubber line with rubber, and sewage draining exit pipe valve 10 is ball valve, is arranged on sewage draining exit pipeline 9.
Application method of the present utility model(Operation principle)It is:
1)Filter is connected between the outlet of lime stone slurry recirculation pump and limestone slurry liquid swirler on pipeline;
2)Inlet ductwork valve 2, export pipeline valve 8 are opened, closes sewage draining exit pipe valve 10;
3)When pulping system is run, lime stone slurry enters filter box 3 by inlet ductwork valve 2, then passes through Filter screen 4, now filter screen 4 to enter filter box 3 lime stone slurry filter, most of impurity can be by the bottom of filter screen 4 Baffle, stays in the bottom of filter box 3, small part impurity can by the filter screen 4 of export pipeline 7 and the interface of filter box 3 every Shelves, few partial impurities can enter cyclone by export pipeline 7;
4)Pressure gauge 5 detects the internal pressure of filter box 3, the reading of pressure gauge 5 is monitored, when pressure reaches alarm setting value When, it is not necessary to lime stone slurry recirculation pump of stopping transport, it is only necessary to open sewage draining exit pipe valve 10, the tamper that impurity is formed will Discharged from sewage draining exit pipeline 9, with the gradual discharge of tamper, the reading of pressure gauge 5 gradually decreases to normal setting value;
5)If the reading of pressure gauge 5 is higher always, it can pull down box cover 6 when pulping system is stopped transport, filter screen 4 entered Row checks, empties the tamper in filter screen 4, is cleaned or changed if necessary spare part to filter screen.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with described Scope of the claims is defined.

Claims (7)

  1. A kind of 1. dismountable external lime stone slurry filter, it is characterised in that:Include inlet ductwork(1), inlet tube Road valve(2), filter box(3), filter screen(4), pressure gauge(5), box cover(6), export pipeline(7), export pipeline valve (8), sewage draining exit pipeline(9)With sewage draining exit pipe valve(10);The filter box(3)Without top surface, the box cover(6)Position In the filter box(3)Above, mode and the filter box are bolted(3)It is fastened and connected and makes the casing Cover plate(6)With the filter box(3)Form a closed structure;The inlet ductwork(1)With export pipeline(7)It is located at respectively The filter box(3)Both sides, the inlet ductwork valve(2)It is arranged at the inlet ductwork(1)On, the export pipeline Valve(8)It is arranged at the export pipeline(7)On, the inlet ductwork(1)With the filter box(3)Interface height it is low In the export pipeline(7)With the filter box(3)Interface height;The filter screen(4)In pocketed, opening upwards, institute State filter screen(4)Side wall is bonded the filter box(3)Madial wall, the filter screen(4)Upper end be provided with horizontal outer, institute State filter screen(4)Outer be located at the filter box(3)With the box cover(6)Between connecting portion, the filter screen(4)'s Bottom is higher than the inlet ductwork(1)With the filter box(3)Interface, the filter screen(4)Bottom be less than the outlet Pipeline(7)With the filter box(3)Interface;The pressure gauge(5)It is arranged at the filter box(3)Side is to monitor State filter box(3)Internal pressure;The sewage draining exit pipeline(9)It is arranged at the filter box(3)Bottom, the sewage draining exit Pipe valve(10)It is arranged at the sewage draining exit pipeline(9)On.
  2. 2. dismountable external lime stone slurry filter according to claim 1, it is characterised in that:The inlet tube Road(1), filter box(3), export pipeline(7)And sewage draining exit pipeline(9)It is internally provided with line with rubber.
  3. 3. dismountable external lime stone slurry filter according to claim 1, it is characterised in that:The inlet tube Road valve(2)For ball valve or butterfly valve;The export pipeline valve(8)For ball valve or butterfly valve;The sewage draining exit pipe valve(10) For ball valve or butterfly valve.
  4. 4. dismountable external lime stone slurry filter according to claim 1, it is characterised in that:The filter screen (4)It is made up of stainless steel material.
  5. 5. dismountable external lime stone slurry filter according to claim 1, it is characterised in that:The filter screen (4)Grid to be circular or square, when the filter screen(4)Grid for it is circular when, the filter screen(4)The aperture of grid be 4mm ~ 6mm, when the filter screen(4)Grid for it is square when, the filter screen(4)The length of side of grid be 4mm ~ 6mm.
  6. 6. dismountable external lime stone slurry filter according to claim 1, it is characterised in that:The filter screen (4)Grid the gross area and the export pipeline(7)The ratio between flow area be 10:1~20:1.
  7. 7. dismountable external lime stone slurry filter according to claim 1, it is characterised in that:The pressure gauge (5)For bourdon gauges or diaphragm manometer.
CN201720591292.XU 2017-05-25 2017-05-25 A kind of dismountable external lime stone slurry filter Active CN206853232U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720591292.XU CN206853232U (en) 2017-05-25 2017-05-25 A kind of dismountable external lime stone slurry filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720591292.XU CN206853232U (en) 2017-05-25 2017-05-25 A kind of dismountable external lime stone slurry filter

Publications (1)

Publication Number Publication Date
CN206853232U true CN206853232U (en) 2018-01-09

Family

ID=60825481

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720591292.XU Active CN206853232U (en) 2017-05-25 2017-05-25 A kind of dismountable external lime stone slurry filter

Country Status (1)

Country Link
CN (1) CN206853232U (en)

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