CN220003480U - External filtering device for absorption tower - Google Patents
External filtering device for absorption tower Download PDFInfo
- Publication number
- CN220003480U CN220003480U CN202321701962.0U CN202321701962U CN220003480U CN 220003480 U CN220003480 U CN 220003480U CN 202321701962 U CN202321701962 U CN 202321701962U CN 220003480 U CN220003480 U CN 220003480U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- box
- connecting pipe
- filter
- filtering device
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- 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.)
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 26
- 238000001914 filtration Methods 0.000 title claims abstract description 17
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 abstract description 27
- 239000010440 gypsum Substances 0.000 abstract description 22
- 229910052602 gypsum Inorganic materials 0.000 abstract description 22
- 238000006477 desulfuration reaction Methods 0.000 abstract description 12
- 230000023556 desulfurization Effects 0.000 abstract description 12
- 235000019738 Limestone Nutrition 0.000 abstract description 10
- 239000006028 limestone Substances 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to the technical field of limestone wet desulfurization production, in particular to an external filtering device for an absorption tower, which aims to solve the problems that when gypsum slurry in the absorption tower is filtered at present, the filtering device is easily affected by slurry corrosion due to the use of the filtering device in the absorption tower, the service life of a filter screen is easily affected, the overhaul steps in the absorption tower are complicated after the filter screen is blocked, the overhaul safety is poor, and the integral efficiency of limestone wet desulfurization production is affected. The device mainly comprises parts such as box, flange, filter, exhaust valve and blowoff valve, through connecting the holistic inlet of device and the liquid outlet of absorption tower, under the effect of gypsum discharge pump, the gypsum thick liquid that produces the reaction in the absorption tower filters effectively, has greatly improved filter equipment's maintenance convenience and security, has further improved the holistic efficiency of limestone wet flue gas desulfurization production, therefore, the device has good practicality.
Description
Technical Field
The utility model relates to the technical field of limestone wet desulfurization production, in particular to an external filtering device for an absorption tower.
Background
Limestone wet desulfurization is characterized in that limestone is used as a desulfurization absorbent, lime powder is digested and then added with water to prepare absorbent slurry, the absorbent slurry and sintered flue gas are subjected to chemical reaction in an absorption tower to generate gypsum slurry, sulfur dioxide in the flue gas is removed and then discharged into a chimney, the gypsum slurry in the absorption tower is filtered by a filter screen to remove impurities, the gypsum slurry is pumped to a cyclone by a gypsum discharge pump and is further dehydrated by a vacuum belt to generate gypsum byproducts, and the filter screen filters and removes the impurities in the gypsum slurry, so that the desulfurization efficiency can be greatly improved, and the equipment is convenient to stably and smoothly run. After gypsum slurry in the limestone wet desulfurization absorption tower reacts with sintering flue gas, more impurities and large impurity particles are contained in the slurry, a conventional filter screen is arranged in the absorption tower by adopting a semicircular filter screen piece, and the filter screen is soaked in the gypsum slurry for a long time, so that the filter screen mounting part is easy to corrode and break, the filter screen falls into the slurry, and the maintenance is difficult; meanwhile, impurities in the slurry are easy to block filter holes, so that the reacted saturated slurry cannot be timely pumped to a vacuum belt through a gypsum discharge pump to remove gypsum, the reaction effect with sintering flue gas is poor, and the desulfurization effect and emission index are affected; in the slurry discharging process, the built-in filter screen is easy to block, and the blocked filter screen cannot be cleaned under the starting state, if the filter screen needs to be cleaned, the sintering machine main machine is stopped, the slurry in the sulfur absorption tower is emptied, the inspection manhole is opened to enter the absorption tower for internal operation, the filter screen is cleaned in the limited operation space in the absorption tower, so that the maintenance difficulty is high, the safety risk of operators is high, and meanwhile, the slurry needs to be refilled after maintenance, so that the improvement of the whole production efficiency of limestone wet desulfurization is not facilitated.
Disclosure of Invention
The present utility model provides an external filter device for an absorber to solve the above-mentioned problems in the background.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an external filter equipment for absorption tower, includes the box, and one side of box is equipped with first connecting pipe, is equipped with first flange board on the first connecting pipe, and the opposite side of box is equipped with the second connecting pipe, is equipped with the second flange board on the second connecting pipe, and the manhole has been seted up at the top of box, and the top of manhole is equipped with the apron, and the inside slope of box is equipped with the filter, and the bottom of box still is equipped with the blowoff valve.
Further, the top of manhole is equipped with the third flange board, the third flange board with the apron can dismantle the connection, and the top of apron still is equipped with the handle.
Further, the inside top of box is equipped with first mounting panel perpendicularly, and the inboard bottom of box is equipped with the second mounting panel perpendicularly, just the filter all is connected with first mounting panel and second mounting panel.
Further, the outside portion of box is equipped with a plurality of lugs, and the bottom of box still is equipped with the exhaust valve, and the setting of exhaust valve has guaranteed that the filter is when carrying out the filtration to the gypsum thick liquid in the box leakproofness good, has effectively improved the stability and the conveying quality that the gypsum thick liquid flows.
Further, the first connecting pipe and the second connecting pipe are both communicated with the box body, and the first connecting pipe and the second connecting pipe are coaxially arranged.
Further, the drain valve is a stainless steel drain valve of model GDQ-KF-DN20, and the drain valve is a quick drain valve of model Bonogen P48H-25-DN 50.
The utility model has the following beneficial effects:
the external filtering device for the absorption tower mainly comprises a box body, a connecting flange, a filter plate, an exhaust valve, a blow-down valve and other parts, and by connecting the integral liquid inlet of the device with the liquid outlet of the absorption tower, gypsum slurry generated by reaction in the absorption tower is effectively filtered under the action of a gypsum discharge pump, so that the maintenance convenience and safety of the filtering device are greatly improved, the maintenance of the filtering device under the condition that the operation of a main machine of the absorption tower is not influenced is ensured, the integral efficiency of limestone wet desulfurization production is further improved, and the problems that the service life of a filter screen is easily influenced due to slurry corrosion, the maintenance steps in the absorption tower are complicated and the maintenance safety is poor after the filter screen is blocked, and the integral efficiency of limestone wet desulfurization production is influenced due to the fact that the filtering device is used for filtering gypsum slurry in the absorption tower at present are solved.
According to the utility model, the outer side part of the box body is provided with the lifting lugs, the bottom of the box body is also provided with the emptying valve, and the arrangement of the emptying valve ensures that the sealing performance of the filter plate in the box body is good when the gypsum slurry is filtered, and the flowing stability and the conveying quality of the gypsum slurry are effectively improved.
Drawings
FIG. 1 is a schematic forward view of the overall structure of the present utility model.
Fig. 2 is a top view of the overall structure of the present utility model.
The reference numerals have the following meanings:
1. a case; 2. a first connection pipe; 3. a first flange plate; 4. a second connection pipe; 5. a second flange plate; 6. a manhole; 7. a third flange plate; 8. a cover plate; 9. a handle; 10. a filter plate; 11. a first mounting plate; 12. an evacuation valve; 13. a blow-down valve; 14. lifting lugs; 15. and a second mounting plate.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
As shown in fig. 1-2, an external filtering device for an absorption tower comprises a box body 1, wherein a plurality of lifting lugs 14 are welded on the outer side part of the box body 1, an evacuation valve 12 and a blow-down valve 13 are installed on the bottom of the box body 1, a first connecting pipe 2 is welded on one side of the box body 1 in a communicating manner, a first flange plate 3 is installed on the first connecting pipe 2, a second connecting pipe 4 is welded on the other side of the box body 1 in a communicating manner, a second flange plate 5 is installed on the second connecting pipe 4, and the first connecting pipe 2 and the second connecting pipe 4 are coaxially arranged. The manhole 6 has been seted up at the top of box 1, and the top welding of manhole 6 has third flange board 7, and apron 8 is installed through the bolt at the top of third flange board 7, and the top welding of apron 8 has handle 9. The inside of the cabinet 1 is obliquely mounted with the filter plate 10 by the first mounting plate 11 and the second mounting plate 15.
When the device is specifically used, after the welding of all parts of the device is checked in advance, the first flange plate 3 and the second flange plate 5 are respectively arranged on a liquid outlet pipeline of an absorption tower, the filter plate 10 is arranged at the positions of the first mounting plate 11 and the second mounting plate 15 through bolts, the cover plate 8 is arranged at the top of the third flange plate 7 through bolts, the air in the box body is exhausted through the exhaust valve 12, the flow stability and the transmission quality of gypsum slurry are ensured, and then the control valve is opened, so that the filter device can effectively externally filter the gypsum slurry. Further, when the filter plate 10 is blocked, the slurry inlet valve and the slurry outlet valve are closed in time, the blow-down valve 13 is opened, slurry in the box body 1 is discharged in time, and then the cover plate 8 at the overhaul hole 6 is opened to clean and overhaul the filter plate 10.
Claims (5)
1. An external filter equipment for absorption tower, characterized by: including box (1), one side of box (1) is equipped with first connecting pipe (2), is equipped with first flange board (3) on first connecting pipe (2), and the opposite side of box (1) is equipped with second connecting pipe (4), is equipped with second flange board (5) on second connecting pipe (4), and manhole (6) have been seted up at the top of box (1), and the top of manhole (6) is equipped with apron (8), and the inside slope of box (1) is equipped with filter (10), and the bottom of box (1) still is equipped with blow off valve (13).
2. An external filtration apparatus for an absorber as claimed in claim 1, wherein: the top of manhole (6) is equipped with third flange board (7), third flange board (7) with apron (8) can dismantle the connection, and the top of apron (8) still is equipped with handle (9).
3. An external filtration apparatus for an absorber as claimed in claim 1, wherein: the filter plate is characterized in that a first mounting plate (11) is vertically arranged at the top of the inner side of the box body (1), a second mounting plate (15) is vertically arranged at the bottom of the inner side of the box body (1), and the filter plates (10) are connected with the first mounting plate (11) and the second mounting plate (15).
4. An external filtration apparatus for an absorber as claimed in claim 1, wherein: the outer side of the box body (1) is provided with a plurality of lifting lugs (14), and the bottom of the box body (1) is also provided with an emptying valve (12).
5. An external filtration apparatus for an absorber as claimed in claim 1, wherein: the first connecting pipe (2) and the second connecting pipe (4) are both communicated with the box body (1), and the first connecting pipe (2) and the second connecting pipe (4) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321701962.0U CN220003480U (en) | 2023-06-30 | 2023-06-30 | External filtering device for absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321701962.0U CN220003480U (en) | 2023-06-30 | 2023-06-30 | External filtering device for absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220003480U true CN220003480U (en) | 2023-11-14 |
Family
ID=88671340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321701962.0U Active CN220003480U (en) | 2023-06-30 | 2023-06-30 | External filtering device for absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220003480U (en) |
-
2023
- 2023-06-30 CN CN202321701962.0U patent/CN220003480U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |