CN202762178U - Smoke desulfuration system - Google Patents
Smoke desulfuration system Download PDFInfo
- Publication number
- CN202762178U CN202762178U CN 201220464114 CN201220464114U CN202762178U CN 202762178 U CN202762178 U CN 202762178U CN 201220464114 CN201220464114 CN 201220464114 CN 201220464114 U CN201220464114 U CN 201220464114U CN 202762178 U CN202762178 U CN 202762178U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- flue gas
- gas desulphurization
- gypsum
- desulphurization system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 6
- 239000000779 smoke Substances 0.000 title abstract 4
- 239000010440 gypsum Substances 0.000 claims abstract description 51
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 51
- 238000004140 cleaning Methods 0.000 claims abstract description 33
- 238000010521 absorption reaction Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000004537 pulping Methods 0.000 claims abstract description 20
- 230000018044 dehydration Effects 0.000 claims abstract description 18
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims description 44
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 40
- 239000003546 flue gas Substances 0.000 claims description 40
- 235000019738 Limestone Nutrition 0.000 claims description 32
- 239000006028 limestone Substances 0.000 claims description 32
- 239000011505 plaster Substances 0.000 claims description 25
- 210000002966 serum Anatomy 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 13
- 230000035699 permeability Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Images
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a smoke desulfuration system which comprises a pulping system, an absorption tower and a gypsum dehydration system which are sequentially communicated. A filter screen box is arranged between the pulping system and the absorption and/or between the absorption tower and the gypsum dehydration system. The filter screen box comprises a box body and a filter screen arranged in the box body. A working side and a cleaning side which are communicated are arranged in the box body, the filter screen is capable of moving between the working side and the cleaning side, a material inlet is arranged on a top plate of the working side, a material outlet is arranged on a base plate of the working side, and a cleaning port is arranged at the top of the cleaning side. Due to the fact that the filter screen installed in the smoke desulfuration system is capable of moving between the working side and the cleaning side of the filter screen box, the filter screen can be cleaned on line without affecting normal operation of the smoke desulfuration system.
Description
Technical field
The processing of the waste gas that the utility model produces when relating to thermal power generation particularly, relates to a kind of flue gas desulphurization system.
Background technology
The waste gas that produces when the method for normal employing Limestone-gypsum Wet Flue Gas Desulfurization Process is to thermal power generation is at present processed.Use a kind of flue gas desulphurization system this moment, this flue gas desulphurization system comprises pulping system, absorption tower and the gypsum dehydration system that is communicated with by successively, is provided with Y type filter screen or conical screen between described pulping system and the described absorption tower and/or between described absorption tower and the described gypsum dehydration system.
But Y type filter screen and conical screen are in case only have just Y type filter screen or conical screen just can be cleared up after removing after stopping up, and have then just caused flue gas desulphurization system normally to move.
Therefore, how in the cleaning filter screen, not hinder the normal operation of flue gas desulphurization system to become the technical problem that this area needs to be resolved hurrily.
The utility model content
The purpose of this utility model provides a kind of flue gas desulphurization system, and the filter screen case that uses in this flue gas desulphurization system is difficult for blocked.
To achieve these goals, the utility model provides a kind of flue gas desulphurization system, this flue gas desulphurization system comprises the pulping system that is communicated with successively, absorption tower and gypsum dehydration system, be provided with the filter screen case between described pulping system and the described absorption tower and/or between described absorption tower and the described gypsum dehydration system, wherein, this filter screen case comprises casing and is arranged on the interior filter screen of this casing, described box house comprises active side and the cleaning side that interpenetrates, described filter screen can move between described active side and described cleaning side, be provided with material inlet on the top board of described active side, be provided with material outlet on the base plate of described active side, the top of described cleaning side is provided with the clean-up port.
Preferably, the top of described cleaning side is provided with cover plate, optionally to open or to seal described clean-up port.
Preferably, be provided with air-vent on the top board of described cover plate and/or described active side.
Preferably, be provided with permeability cell on the described air-vent.
Preferably, be provided with slide rail on the front side wall of described casing and/or the rear wall, described screen support and can move along this slide rail on described slide rail.
Preferably, described filter screen comprises framework and the net sheet that is arranged on this framework, is formed with the guide that cooperates with described slide rail on the described framework.
Preferably, described filter screen forms the hexahedron of open-top.
Preferably, described pulping system comprises the limestone slurry liquid swirler, is provided with the lime stone slurry case between this limestone slurry liquid swirler and the described absorption tower, and described filter screen case is arranged between described limestone slurry liquid swirler and the described lime stone slurry case.
Preferably, described gypsum dehydration system comprises the plaster serum rotational flow device, is provided with the gypsum excavationg pump between described absorption tower and the described plaster serum rotational flow device, and described filter screen case is arranged between described plaster serum rotational flow device and the described gypsum excavationg pump.
Preferably, this flue gas desulphurization system also comprises the gypsum slurries baffle-box that is arranged between described plaster serum rotational flow device and the described gypsum excavationg pump, and described filter screen case is arranged between described plaster serum rotational flow device and the described gypsum slurries baffle-box.
Preferably, described gypsum dehydration system also comprises the gypsum spill box, and this gypsum spill box is communicated with described plaster serum rotational flow device, is provided with described filter screen case between this plaster serum rotational flow device and the described gypsum spill box.
Preferably, this flue gas desulphurization system also comprises filter screen case bracing frame, and this filter screen case bracing frame is supported on described filter screen case and installs between the basis.
The filter screen that is installed in the flue gas desulphurization system can be mobile between the active side of filter screen case and cleaning side, when filter screen is positioned at active side, can the fluid that enter in the filter screen case be filtered, when the foreign material in the filter screen are accumulated to a certain degree, filter screen is moved to the cleaning side foreign material in the filter screen are cleared up, can't have influence on the normal operation of flue gas desulphurization system.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with the following specific embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of flue gas desulphurization system described in the utility model;
Fig. 2 is the main cutaway view of filter screen case described in the utility model;
Fig. 3 is the top view of the filter screen case shown in Fig. 2;
Fig. 4 is a kind of preferred embodiment of the casing of filter screen case described in the utility model;
Fig. 5 is a kind of front view of preferred embodiment of the filter screen of filter screen case described in the utility model;
Fig. 6 is the side view of the filter screen shown in Fig. 5.
Description of reference numerals
100 pulping systems, 110 limestone slurry liquid swirlers
120 ball mills, 200 absorption towers
300 gypsum dehydration systems, 310 plaster serum rotational flow devices
320 gypsum spill boxes, 400 filter screen casees
410 casings 411 are made side
412 cleaning sides, 413 air-vents
414 permeability cells, 415 front side walls
416 rear walls, 417 slide rails
418 handles, 420 filter screens
421 frameworks, 422 net sheets
500 lime stone slurry casees, 600 gypsum excavationg pumps
700 gypsum slurries baffle-box 411a material inlets
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As depicted in figs. 1 and 2, the utility model provides a kind of flue gas desulphurization system, this flue gas desulphurization system comprises the pulping system 100 that is communicated with successively, absorption tower 200 and gypsum dehydration system 300, be provided with filter screen case 400 between pulping system 100 and the absorption tower 200 and/or between absorption tower 200 and the gypsum dehydration system 300, wherein, this filter screen case 400 comprises casing 410 and the filter screen 420 that is arranged in this casing 410, casing 410 inside comprise active side 411 and the cleaning side 412 that interpenetrates, filter screen 420 can be mobile between active side 411 and cleaning side 412, be provided with material inlet 411a on the top board of active side 411, be provided with material outlet 411b on the base plate of active side 411, the top of cleaning side 412 is provided with clean-up port 412a.
The waste gas that utilizes flue gas desulphurization system described in the utility model that fire coal is produced carries out desulfurization when processing, and filter screen case 400 is arranged on can prevents between pulping system 100 and the absorption tower 200 that the impurity in the pulping system 100 from entering in the absorption tower 200.When filter screen case 400 is done, filter screen 420 is arranged in the active side 411, and the lime stone slurry that pulping system 100 makes enters active side 411 from material inlet 411a, and the filter screen 420 of flowing through, foreign material in the lime stone slurry are tackled by filter screen 420, and the lime stone slurry after the filtration flows out from material outlet 411b.
When the foreign material of interception on the filter screen 420 reach a certain amount of, filter screen 420 is moved in the cleaning side 412, and by clean-up port 412a foreign material are pulled out from filter screen 420.In the process of whole cleaning foreign material, need not filter screen case 400 is removed, and clear up the consuming time shorter of foreign material, basically can not affect the normal operation of pulping system 100.
Operation principle when between absorption tower 200 and gypsum dehydration system 300 filter screen case 400 being set is similar to the above-mentioned operation principle that filter screen case 400 is set between pulping system 100 and absorption tower 200, repeats no more here.
For the ease of when clearing up filter screen case 400, filter screen 420 being moved to cleaning side 412 from active side 411, preferably, can rope be set at filter screen 420, an end of rope is fixedly connected with filter screen 420, and the other end is arranged on the outside of casing 410.When the foreign material on the filter screen 420 are accumulated to when a certain amount of, filter screen 420 can be moved to cleaning side 412 from active side 411 at casing 410 outer pulling ropes.
In order to prevent that outside foreign material from falling into lime stone slurry or the gypsum slurries after 400 internal contaminations of filter screen case are filtered, preferably, can cover plate 412b be set at the top of cleaning side 412, as shown in Figure 4.This cover plate 412b optionally opens or seals clean-up port 412a.Specifically, when not having foreign material when the foreign material on the filter screen 420 are less or on the filter screen 420, utilize cover plate 412b that clean-up port 412a is sealed, when the foreign material on the filter screen 420 are accumulated to when a certain amount of, cover plate 412b is opened, expose clean-up port 412a, then filter screen 420 is moved to the cleaning side, and filter screen 420 is cleared up.In the utility model, handle 418 can be set at the outer surface of cover plate 412b, so that the operator opens or closes cover plate 412b.
When utilizing filter screen case 400 to filter lime stone slurry or gypsum slurries, can produce hot gas and foam in lime stone slurry or the gypsum slurries, therefore, preferably can air-vent 413 be set at the top board of cover plate 412b and/or described active side 411, as shown in Fig. 3 and Fig. 4.
In order to prevent that the fluid in the filter screen case 400 from overflowing, and preferably, can be provided with permeability cell 414 at air-vent 413, as shown in Figure 4 from air-vent 413.
For the ease of mobile filter screen 420 between the active side 411 of casing 410 and cleaning side 412, preferably, can slide rail 417 be set at front side wall 415 and/or the rear wall 416 of casing 410, filter screen 420 is supported on the slide rail 417, and can move along this slide rail 417." forward and backward " described herein is take " forward and backward " shown in Fig. 3 direction as benchmark.The indicated direction of arrow is for from front to back.
As shown in Figure 4, slide rail 417 extends to active side 411 from cleaning side 412 on rear wall.In order to be convenient to that further filter screen 420 is moved to cleaning side 412 from active side 411, preferably, can two slide rails 417 be set respectively on front side wall 415 and rear wall 416, namely, article two, slide rail 417 matches with the top of filter screen 420, and two slide rails 417 match with the bottom of filter screen 420.
In order to improve the rigidity of filter screen 420, filter screen 420 can comprise framework 421 and the net sheet 422 that is arranged on this framework 421 usually.For the ease of mobile filter screen 420, preferably, can be formed with the guide 422a that cooperates with slide rail 417 on the framework 421.In the utility model, guide 422a protrudes from framework 421, and is supported on the slide rail 417.Guide 422a can form bulk, and perhaps shaft-like (as shown in Figure 6), and also guide 422a can also form pulley.
In the utility model, filter screen 420 can form sheet, cylindrical shape etc.Filter with convection cell better for the ease of making and having larger same flow area, preferably, filter screen 420 forms the hexahedron of open-top.That is, filter screen 420 forms the box structure of open-top, as shown in Fig. 5 and Fig. 6.
When filter screen case described in the utility model is used for flue gas desulphurization system, can utilize diameter for the 316L round steel welding of 10mm forms framework 421, also can utilize PVC sheet material to make framework 421.
In flue gas desulphurization system described in the utility model, since will be between the active side 411 of filter screen case 400 and cleaning side 412 mobile filter screen 420, therefore the position of filter screen case 400 is installed need to satisfies following requirement: the position of 1, guaranteeing to install additional filter screen case 400 is final links of this segment process; 2, the position that installs filter screen case 400 additional wants enough spacious, thereby is convenient to the filter screen 420 in the filter screen case 400 is cleared up; 3, should there be excessive pressure the position that installs filter screen 420 additional, thereby can avoid having liquid to spray from filter screen case 400 when cleaning filter screen 420.
Usually, gypsum dehydration system 300 comprises plaster serum rotational flow device 310, is provided with gypsum excavationg pump 600 between absorption tower 200 and the plaster serum rotational flow device 310, filter screen case 400 can be arranged between plaster serum rotational flow device 310 and the gypsum excavationg pump 600.Filter screen case 400 can be removed the impurity in the absorption tower 200 effectively, guarantees that the waste-water vortex device of plaster serum rotational flow device 310 and next stage can not stop up.
In addition, some flue gas desulphurization system also comprises the gypsum slurries baffle-box 700 that is arranged between plaster serum rotational flow device 310 and the gypsum excavationg pump 600, at this moment, filter screen case 400 can be arranged between plaster serum rotational flow device 310 and the gypsum slurries baffle-box 700.Substantially without pressure, relatively be suitable for installing filter screen case 400 in the pipeline between gypsum slurries baffle-box 700 and the plaster serum rotational flow device 310.
Usually, gypsum dehydration system 300 also comprises gypsum spill box 320, and this gypsum spill box 320 is communicated with plaster serum rotational flow device 310, can be provided with filter screen case 400 between this plaster serum rotational flow device 310 and gypsum spill box 320.
Plaster serum rotational flow device 310 installs filter screen case 400 to the pipeline of gypsum spill box 320 additional can be guaranteed to enter in the slurries of waste-water vortex device and not contain large granular impurity, guarantees that the waste-water vortex device is not blocked.
Sometimes filter screen case 400 volumes are larger, preferably, described flue gas desulphurization system can also comprise filter screen case bracing frame, and this filter screen case bracing frame is supported on filter screen case 400 and installs between the basis, thereby for filter screen case 400 provides enough support forces, and it is impaired to prevent from installing the pipeline of filter screen case 400.In the utility model, described installation basis can make ground.Can utilize the welding of channel-section steel or angle steel to obtain described filter screen case bracing frame.
The filter screen that is installed in the flue gas desulphurization system can be mobile between the active side of filter screen case and cleaning side, when filter screen is positioned at active side, can the fluid that enter in the filter screen case be filtered, when the foreign material in the filter screen are accumulated to a certain degree, filter screen is moved to the cleaning side foreign material in the filter screen are cleared up, can't have influence on the normal operation of flue gas desulphurization system.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible combinations.
In addition, also can carry out any combination between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (12)
1. flue gas desulphurization system, this flue gas desulphurization system comprises the pulping system (100) that is communicated with successively, absorption tower (200) and gypsum dehydration system (300), be provided with filter screen case (400) between described pulping system (100) and described absorption tower (200) and/or between described absorption tower (200) and the described gypsum dehydration system (300), it is characterized in that, this filter screen case (400) comprises casing (410) and is arranged on the interior filter screen (420) of this casing (410), described casing (410) inside comprises active side (411) and the cleaning side (412) that interpenetrates, described filter screen (420) can move between described active side (411) and described cleaning side (412), be provided with material inlet (411a) on the top board of described active side (411), be provided with material outlet (411b) on the base plate of described active side, the top of described cleaning side is provided with clean-up port (412a).
2. flue gas desulphurization system according to claim 1 is characterized in that, the top of described cleaning side (412) is provided with cover plate (412b), optionally to open or to seal described clean-up port (412a).
3. flue gas desulphurization system according to claim 2 is characterized in that, is provided with air-vent (413) on the top board of described cover plate (412b) and/or described active side (411).
4. flue gas desulphurization system according to claim 3 is characterized in that, is provided with permeability cell (414) on the described air-vent (413).
5. flue gas desulphurization system according to claim 1, it is characterized in that, be provided with slide rail (417) on the front side wall (415) of described casing (410) and/or the rear wall (416), described filter screen (420) is supported on the described slide rail (417), and can be mobile along this slide rail (417).
6. flue gas desulphurization system according to claim 5, it is characterized in that, described filter screen (420) comprises framework (421) and is arranged on net sheet (422) on this framework (421), is formed with the guide (422a) that cooperates with described slide rail (417) on the described framework (421).
7. flue gas desulphurization system according to claim 6 is characterized in that, described filter screen (420) forms the hexahedron of open-top.
8. the described flue gas desulphurization system of any one in 7 according to claim 1, it is characterized in that, described pulping system (100) comprises limestone slurry liquid swirler (110), be provided with lime stone slurry case (500) between this limestone slurry liquid swirler (110) and described absorption tower (200), described filter screen case (400) is arranged between described limestone slurry liquid swirler (110) and the described lime stone slurry case (500).
9. the described flue gas desulphurization system of any one in 7 according to claim 1, it is characterized in that, described gypsum dehydration system (300) comprises plaster serum rotational flow device (310), be provided with gypsum excavationg pump (600) between described absorption tower (200) and the described plaster serum rotational flow device (310), described filter screen case (400) is arranged between described plaster serum rotational flow device (310) and the described gypsum excavationg pump (600).
10. the described flue gas desulphurization system of any one in 7 according to claim 1, it is characterized in that, this flue gas desulphurization system also comprises the gypsum slurries baffle-box (700) that is arranged between described plaster serum rotational flow device (310) and the described gypsum excavationg pump (600), and described filter screen case (400) is arranged between described plaster serum rotational flow device (310) and the described gypsum slurries baffle-box (700).
11. the described flue gas desulphurization system of any one in 7 according to claim 1, it is characterized in that, described gypsum dehydration system (300) also comprises gypsum spill box (320), this gypsum spill box (320) is communicated with described plaster serum rotational flow device (310), is provided with described filter screen case (400) between this plaster serum rotational flow device (310) and the described gypsum spill box (320).
12. the described flue gas desulphurization system of any one in 7 is characterized in that this flue gas desulphurization system also comprises filter screen case bracing frame according to claim 1, this filter screen case bracing frame is supported on described filter screen case (400) and installs between the basis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464114 CN202762178U (en) | 2012-09-12 | 2012-09-12 | Smoke desulfuration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464114 CN202762178U (en) | 2012-09-12 | 2012-09-12 | Smoke desulfuration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202762178U true CN202762178U (en) | 2013-03-06 |
Family
ID=47768782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220464114 Expired - Lifetime CN202762178U (en) | 2012-09-12 | 2012-09-12 | Smoke desulfuration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202762178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824776A (en) * | 2012-09-12 | 2012-12-19 | 中国神华能源股份有限公司 | Flue gas desulfurization system |
-
2012
- 2012-09-12 CN CN 201220464114 patent/CN202762178U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824776A (en) * | 2012-09-12 | 2012-12-19 | 中国神华能源股份有限公司 | Flue gas desulfurization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |