CN220003535U - Slurry circulation back flushing system of siphon desulfurization absorption tower - Google Patents
Slurry circulation back flushing system of siphon desulfurization absorption tower Download PDFInfo
- Publication number
- CN220003535U CN220003535U CN202321248326.7U CN202321248326U CN220003535U CN 220003535 U CN220003535 U CN 220003535U CN 202321248326 U CN202321248326 U CN 202321248326U CN 220003535 U CN220003535 U CN 220003535U
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- CN
- China
- Prior art keywords
- control valve
- absorption tower
- desulfurization absorption
- slurry
- siphon
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- 239000002002 slurry Substances 0.000 title claims abstract description 63
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 40
- 230000023556 desulfurization Effects 0.000 title claims abstract description 40
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 35
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The siphon type slurry circulation back flushing system for the desulfurization absorption tower comprises the desulfurization absorption tower, an inlet pipeline isolation valve, an inlet pipeline discharge control valve, a slurry circulation pump, a pump body discharge control valve, a siphon tank and a water injection control valve, wherein an outlet pipe at the bottom of the desulfurization absorption tower is connected with a water inlet pipe of the slurry circulation pump through the inlet pipeline isolation valve, and a water outlet pipe of the slurry circulation pump is connected with a top inlet pipe of the desulfurization absorption tower; the second outlet pipe of the slurry circulating pump is connected with the pump body emission control valve, and the water outlet pipe of the pump body emission control valve correspondingly stretches into the siphon groove; one end of the water injection control valve is connected with a clean water source, and the other end of the water injection control valve is positioned between the slurry circulating pump and the desulfurization absorption tower; the device such as a valve in the circulation system can be cleaned.
Description
Technical Field
The utility model relates to the technical field of slurry circulation treatment, in particular to a slurry circulation back flushing system of a siphon desulfurization absorption tower.
Background
As known, the coal-fired boiler is quite common in use, and has thermal power generation, heating, smelting and other industrial applications, but because of the high sulfur content of coal, a great amount of smoke dust is entrained in the discharged smoke gas besides sulfur dioxide gas, which is a main cause of acid rain and inhalable particles in the air, causes environmental pollution and damages the ecological environment of people;
most of the existing desulfurization modes are wet desulfurization, namely, slurry composed of alkaline substances such as gypsum and limestone is sprayed into sulfur-containing gas, but the alkaline substances in the slurry are easy to deposit and form paste under the condition of no flow, so that the paste is attached to the pipe wall, the tank bottom and other parts, and then when spraying is needed again, the paste can block a valve or a pipeline opening, the alkaline substance content in the slurry is reduced, the desulfurization efficiency is affected, the flow-through property of the slurry is affected, and the normal operation of equipment such as the valve is affected;
chinese patent (CN 201420113804.8) discloses a siphon slurry treater, in which the dust-removed slurry enters the main tower from the slurry inlet at the upper part, the particulate matter in the slurry is precipitated at the bottom of the main tower, the particulate matter content at the upper part of the slurry in the main tower is reduced, the liquid level in the main tower and the auxiliary tower are balanced through the liquid level balancing hole, the slurry with low particulate matter content is further precipitated in the auxiliary tower to obtain a supernatant, the supernatant is pumped by a circulating pump, then enters the upper part of the main tower through a switch valve, the washing slurry is reused, the supernatant is obtained by reprecipitation, the supernatant is discharged from the supernatant outlet at the middle part, the precipitated slurry with high particulate matter content at the inner bottom of the main tower and the auxiliary tower is discharged from the main tower precipitate outlet and the auxiliary tower precipitate outlet at the lower part, and the next procedure treatment is performed; however, the two treatment towers are arranged in the processor, so that the cost is high, the processor is mainly used for receiving slurry, and impurities in a valve or pipeline equipment cannot be cleaned;
accordingly, in view of the foregoing, there is a need in the market for a system that can clean equipment such as valves.
Disclosure of Invention
In order to overcome the defects in the background technology, the utility model discloses a slurry circulation back flushing system of a siphon desulfurization absorption tower.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the siphon type slurry circulation back flushing system for the desulfurization absorption tower comprises the desulfurization absorption tower, an inlet pipeline isolation valve, an inlet pipeline discharge control valve, a slurry circulation pump, a pump body discharge control valve, a siphon tank and a water injection control valve, wherein an outlet pipe at the bottom of the desulfurization absorption tower is connected with a water inlet pipe of the slurry circulation pump through the inlet pipeline isolation valve, and a water outlet pipe of the slurry circulation pump is connected with a top inlet pipe of the desulfurization absorption tower; the second outlet pipe of the slurry circulating pump is connected with the pump body emission control valve, and the water outlet pipe of the pump body emission control valve correspondingly stretches into the siphon groove; one end of the water injection control valve is connected with a clean water source, and the other end of the water injection control valve is positioned between the slurry circulating pump and the desulfurization absorption tower.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the utility model discloses a slurry circulation back flushing system of a siphon desulfurization absorption tower, which is characterized in that an outlet pipe of the desulfurization absorption tower is firstly closed, clear water can be injected into a slurry circulation pump and an inlet pipeline isolation valve through a water injection control valve for flushing sediment in the slurry circulation pump and the inlet pipeline isolation valve, the flushed liquid automatically flows into a siphon tank under the action of a siphon effect, and finally the hydraulic pressure in the slurry circulation system formed by the desulfurization absorption tower, the inlet pipeline isolation valve and the slurry circulation pump is kept consistent with the hydraulic pressure level in the siphon tank, so that equipment such as pipeline valves and the like are cleaned, the hydraulic stability in the circulation system is maintained, the entry of external air is avoided, the desulfurization work can be normally carried out, and the problems of blocking, incapacity of starting and the like caused by the fact that the slurry circulation pump is started again due to slow flow speed of the slurry circulation pump are effectively solved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1. a desulfurizing absorption tower; 2. an inlet conduit isolation valve; 3. an inlet conduit discharge control valve; 4. a slurry circulation pump; 5. a pump body discharge control valve; 6. a siphon tank; 7. and a water injection control valve.
Description of the embodiments
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present utility model, and in order to facilitate description of the present utility model, it is not indicated or implied that the device or element referred to must have a specific azimuth:
the siphon desulfurization absorption tower slurry circulation back flushing system comprises a desulfurization absorption tower 1, an inlet pipeline isolation valve 2, an inlet pipeline discharge control valve 3, a slurry circulation pump 4, a pump body discharge control valve 5, a water injection control valve 7 and a siphon tank 6, wherein the bottom outlet pipe of the desulfurization absorption tower 1 is connected with the water inlet pipe of the slurry circulation pump 4 through the inlet pipeline isolation valve 2, and the water outlet pipe of the slurry circulation pump 4 is connected with the top inlet pipe of the desulfurization absorption tower 1; the desulfurization absorption tower 1, the inlet pipeline isolation valve 2 and the slurry circulating pump 4 form a set of slurry circulating system, and in normal desulfurization operation, the inlet pipeline discharge control valve 3, the pump body discharge control valve 5 and the water injection control valve 7 are all in a closed state, slurry at the bottom of the desulfurization absorption tower 1 is pumped out by the slurry circulating pump 4 and then enters from a water inlet pipe at the top of the desulfurization absorption tower 1, and sulfur-containing gas is sprayed to form slurry circulation;
the inlet pipeline discharge control valve 3 is positioned between the inlet pipeline isolation valve 2 and the slurry circulating pump 4, the water outlet pipe of the inlet pipeline discharge control valve 3 correspondingly stretches into the siphon groove 6, the second outlet pipe of the slurry circulating pump 4 is connected with the pump body discharge control valve 5, the water outlet pipe of the pump body discharge control valve 5 correspondingly stretches into the siphon groove 6, after the outlet pipe of the desulfurization absorption tower 1 is closed, clear water is injected into the slurry circulating pump 4 and the inlet pipeline isolation valve 2 through the water injection control valve 7, the slurry circulating pump 4 and the inlet pipeline isolation valve 2 are flushed with clear water, so that sediment in the slurry circulating pump 4 and the inlet pipeline isolation valve 2 is diluted, then the diluted liquid automatically flows into the siphon groove 6 to be collected under the action of the siphon effect, and the hydraulic pressure in the slurry circulating system and the hydraulic pressure level in the siphon groove 6 are kept consistent under the action of the siphon effect, so that the hydraulic pressure in the slurry circulating system is always in a stable state, the entry of external air is avoided, equipment such as a pipeline valve is maintained, the hydraulic stability in the circulating system is maintained, and the subsequent desulfurization can be carried out; one end of the water injection control valve 7 is connected with a clean water source, the other end of the water injection control valve 7 is positioned between the slurry circulating pump 4 and the desulfurization absorption tower 1, in addition, after flushing is finished, the inlet pipeline discharge control valve 3 and the pump body discharge control valve 5 are closed, the outlet pipe of the desulfurization absorption tower 1 is opened again, clean water is refilled from the water injection control valve 7 into the slurry circulating system, and the liquid level of the clean water is not lower than that of the desulfurization absorption tower 1.
The utility model has not been described in detail in the prior art, and it is apparent to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (1)
1. A slurry circulation back flushing system of a siphon desulfurization absorption tower is characterized in that: the desulfurization absorption tower comprises a desulfurization absorption tower (1), an inlet pipeline isolation valve (2), an inlet pipeline discharge control valve (3), a slurry circulating pump (4), a pump body discharge control valve (5), a siphon tank (6) and a water injection control valve (7), wherein a bottom outlet pipe of the desulfurization absorption tower (1) is connected with a water inlet pipe of the slurry circulating pump (4) through the inlet pipeline isolation valve (2), and a water outlet pipe of the slurry circulating pump (4) is connected with a top inlet pipe of the desulfurization absorption tower (1); the inlet pipeline discharge control valve (3) is positioned between the inlet pipeline isolation valve (2) and the slurry circulating pump (4), a water outlet pipe of the inlet pipeline discharge control valve (3) correspondingly stretches into the siphon groove (6), a second outlet pipe of the slurry circulating pump (4) is connected with the pump body discharge control valve (5), and a water outlet pipe of the pump body discharge control valve (5) correspondingly stretches into the siphon groove (6); one end of the water injection control valve (7) is connected with a clean water source, and the other end of the water injection control valve (7) is positioned between the slurry circulating pump (4) and the desulfurization absorption tower (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248326.7U CN220003535U (en) | 2023-05-23 | 2023-05-23 | Slurry circulation back flushing system of siphon desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248326.7U CN220003535U (en) | 2023-05-23 | 2023-05-23 | Slurry circulation back flushing system of siphon desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220003535U true CN220003535U (en) | 2023-11-14 |
Family
ID=88681067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321248326.7U Active CN220003535U (en) | 2023-05-23 | 2023-05-23 | Slurry circulation back flushing system of siphon desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220003535U (en) |
-
2023
- 2023-05-23 CN CN202321248326.7U patent/CN220003535U/en active Active
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| GR01 | Patent grant | ||
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