CN216005591U - Equipment for preparing fine gypsum from wet desulfurization sludge - Google Patents
Equipment for preparing fine gypsum from wet desulfurization sludge Download PDFInfo
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- CN216005591U CN216005591U CN202121649956.6U CN202121649956U CN216005591U CN 216005591 U CN216005591 U CN 216005591U CN 202121649956 U CN202121649956 U CN 202121649956U CN 216005591 U CN216005591 U CN 216005591U
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 39
- 239000010440 gypsum Substances 0.000 title claims abstract description 39
- 239000010802 sludge Substances 0.000 title claims abstract description 34
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 26
- 230000023556 desulfurization Effects 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000005192 partition Methods 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 238000002386 leaching Methods 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 5
- 238000009270 solid waste treatment Methods 0.000 abstract description 5
- 230000001143 conditioned effect Effects 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses equipment for preparing fine gypsum from wet desulphurization sludge, which comprises a treatment chamber, a first distribution groove, a second distribution groove and a vacuum dehydrator, wherein the treatment chamber is communicated with the first distribution groove; a first partition plate and a second partition plate which are parallel to each other are arranged in the treatment chamber, the treatment chamber is divided into three cavities through the first partition plate and the second partition plate, and the three cavities are a clean water tank, a sedimentation tank and an adjusting tank in sequence; a mud scraping conveyor for conveying the sludge to the adjusting tank is arranged in the settling tank; a mixing structure is arranged in the regulating tank; according to the utility model, part of water in the desulfurization wastewater is discharged through the treatment chamber, so that the solid content of the desulfurization wastewater is improved, and the desulfurization wastewater is conditioned in the conditioning tank, so that gypsum can be better formed in the vacuum dehydrator; by adopting the method and the device, the fine gypsum is prepared by utilizing the desulfurized sludge, so that the solid waste treatment cost is reduced, the gypsum can be sold to the outside, the economic benefit is generated, and the production cost is reduced.
Description
Technical Field
The utility model relates to the field of waste treatment, in particular to equipment for preparing fine gypsum from wet desulphurization sludge.
Background
When the coal-fired power plant carries out wet desulphurization on flue gas by a limestone-gypsum method, a large amount of gypsum slurry is generated, and after the gypsum slurry passes through the centrifugal rotational flow effect of a gypsum rotational flow station, the high-concentration gypsum slurry is sent to a vacuum dehydrator for dehydration to prepare massive gypsum. In the process, the overflow water discharged from the gypsum cyclone station enters a desulfurization wastewater pool, and a large amount of desulfurization sludge is accumulated in the desulfurization wastewater pool after long-term precipitation, wherein the desulfurization sludge has the characteristics of high viscosity, high salt content and fine particles (the particle size is less than 45 mu m and accounts for more than 90%). Due to the lack of utilization value, the economical efficiency of treating the desulfurized sludge is poor.
At present, the treatment method of the desulfurization sludge mainly comprises landfill or incineration, wherein the treatment method of the desulfurization sludge has high seepage prevention requirement on a landfill site and large waste of land resources; the latter method consumes a large amount of heat value and is costly to process. Therefore, the coal-fired power plant adopting wet desulphurization urgently needs to develop a new method and equipment for treating the desulphurization sludge with high efficiency and low energy consumption, and realizes the treatment and recycling of the desulphurization sludge with lower investment and operation cost.
Based on the situation, the utility model provides equipment for preparing fine gypsum from wet desulphurization sludge, which can effectively solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide equipment for preparing fine gypsum from wet desulphurization sludge. The equipment for preparing the fine gypsum by using the wet desulphurization sludge has a simple structure, is convenient to use, discharges part of water in the desulphurization wastewater through the treatment box, improves the solid content of the desulphurization wastewater, and modifies the desulphurization wastewater in the regulating reservoir to ensure that the gypsum can be better formed in the vacuum dehydrator; by adopting the method and the device, the fine gypsum is prepared by utilizing the desulfurized sludge, so that the solid waste treatment cost is reduced, the gypsum can be sold to the outside, the economic benefit is generated, and the production cost is reduced.
The utility model is realized by the following technical scheme:
a device for preparing fine gypsum from wet desulphurization sludge comprises a treatment box, a first distribution groove, a second distribution groove and a vacuum dehydrator; a first partition plate and a second partition plate which are parallel to each other are arranged in the treatment box, the treatment box is divided into three cavities through the first partition plate and the second partition plate, and the three cavities are a clean water tank, a sedimentation tank and an adjusting tank in sequence; a mud scraping conveyor for conveying the sludge to the adjusting tank is arranged in the settling tank; a mixing structure is arranged in the regulating tank; a leaching row is also arranged above the vacuum dehydrator;
a first feeding pipe is communicated with the sedimentation tank; a water supply pipe is arranged between the regulating tank and the clean water tank; a feeding pipe is communicated between the regulating tank and the second distribution groove; a second feeding pipe is communicated between the first distribution groove and the vacuum dehydrator; a third feeding pipe is communicated between the second distribution groove and the vacuum dehydrator; the vacuum dehydrator is also provided with a water return pipe communicated to the clean water tank; the clean water tank is also communicated with a water outlet pipe.
According to the utility model, part of water in the desulfurization wastewater is discharged through the treatment box, so that the solid content of the desulfurization wastewater is improved, and the desulfurization wastewater is conditioned in the conditioning tank, so that gypsum can be better formed in the vacuum dehydrator; by adopting the method and the device, the fine gypsum is prepared by utilizing the desulfurized sludge, so that the solid waste treatment cost is reduced, the gypsum can be sold to the outside, the economic benefit is generated, and the production cost is reduced.
The treatment box is made of concrete, and the inner wall is subjected to epoxy resin anticorrosive treatment.
The scraper conveyor is a belt scraper conveyor, a motor drives a belt pulley through a speed reducer, the belt pulley drives scraper blades of the scraper conveyor to horizontally run on a certain plane on the desulfurization sludge settling tank, and the height of the plane can be adjusted through a hydraulic scraper lifting system; the scraper of the mud scraping conveyor is made of 2507 bidirectional stainless steel, has excellent wear resistance and corrosion resistance, and is 6mm thick.
Preferably, the mixing structure comprises a fan, an air outlet disc arranged inside the adjusting tank and an air outlet pipe communicated from the fan to the air outlet disc; a plurality of air outlets are arranged on the air outlet disc; the air outlet pipe is also provided with a check valve and an isolation valve.
Through go out that the tuber pipe is continuous toward inject into the air in the equalizing basin, through the ascending stirring desulfurization waste water that stirs of air, realize better quenching and tempering effect.
Preferably, a drain port is arranged between the top of the first partition plate and the top plate of the treatment box; and a gate is arranged in the middle of the second partition plate.
Preferably, a mud level meter is arranged in the sedimentation tank; and a liquid level meter and a chloride ion concentration meter are arranged in the regulating tank.
Preferably, a clean water pump is arranged on the clean water tank, and the water inlet end of the water supply pipe and the water inlet end of the water outlet pipe are both communicated with the clean water pump; pneumatic valves are arranged on the water supply pipe and the water outlet pipe.
Preferably, a conveying pump is arranged on the conveying pipe, and an isolating valve is arranged at a feed port and a discharge port of the conveying pump; and a discharge hole of the conveying pump is also provided with a flowmeter.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the equipment for preparing the fine gypsum by using the wet desulphurization sludge has a simple structure, is convenient to use, discharges part of water in the desulphurization wastewater through the treatment box, improves the solid content of the desulphurization wastewater, and modifies the desulphurization wastewater in the regulating reservoir to ensure that the gypsum can be better formed in the vacuum dehydrator; by adopting the method and the device, the fine gypsum is prepared by utilizing the desulfurized sludge, so that the solid waste treatment cost is reduced, the gypsum can be sold to the outside, the economic benefit is generated, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The technical features (the components/elements of the utility model) of the scraper conveyor, the vacuum dehydrator, the leaching row, the fan, the air outlet disc, etc. are all obtained from conventional commercial sources or manufactured by conventional methods, if no special description is made, the specific structure, the working principle, the control mode and the spatial arrangement mode which may be involved adopt the conventional selection in the field, and should not be regarded as the innovation point of the utility model, and it is understood to those skilled in the art that the patent of the utility model is not specifically and specifically described in detail.
Example 1:
as shown in fig. 1, an apparatus for preparing fine gypsum from wet desulfurization sludge includes a treatment tank 1, a first distribution tank 2, a second distribution tank 3, and a vacuum dehydrator 4; a first partition plate 11 and a second partition plate 12 which are parallel to each other are arranged in the treatment box 1, the treatment box 1 is internally divided into three cavities through the first partition plate 11 and the second partition plate 12, and the three cavities sequentially comprise a clean water tank 14, a sedimentation tank 15 and a regulating tank 16; a mud scraping conveyor 5 for conveying the sludge to the adjusting tank 16 is arranged in the sedimentation tank 15; a mixing structure 6 is arranged in the regulating tank 16; a leaching row 7 is also arranged above the vacuum dehydrator 4;
according to the utility model, part of water in the desulfurization wastewater is discharged through the treatment box 1, so that the solid content of the desulfurization wastewater is improved, and the desulfurization wastewater is conditioned in the regulating tank 16, so that gypsum can be better formed in the vacuum dehydrator 4; by adopting the method and the device, the fine gypsum is prepared by utilizing the desulfurized sludge, so that the solid waste treatment cost is reduced, the gypsum can be sold to the outside, the economic benefit is generated, and the production cost is reduced.
A first feeding pipe 91 is communicated with the sedimentation tank 15; a water supply pipe 92 is arranged between the adjusting tank 16 and the clean water tank 14; a feeding pipe 93 is communicated between the regulating tank 16 and the second distribution groove 3; a second feeding pipe 94 is communicated between the first distribution groove 2 and the vacuum dehydrator 4; a third feeding pipe 95 is communicated between the second distribution groove 3 and the vacuum dehydrator 4; a water return pipe 96 communicated with the clean water tank 14 is also arranged on the vacuum dehydrator 4; the clean water tank 14 is also communicated with a water outlet pipe 97.
Further, in another embodiment, the mixing structure 6 includes a fan 61, an air outlet tray 62 disposed inside the conditioning tank 16, and an air outlet pipe 98 communicated from the fan 61 to the air outlet tray 62; a plurality of air outlets are arranged on the air outlet disc 62; the air outlet pipe 98 is also provided with a check valve 86 and an isolation valve 87.
The desulfurization waste water is prevented from flowing into the fan 61 by the check valve 86 and the isolation valve 87, and the normal operation of the fan 61 is ensured.
Further, in another embodiment, a water flowing port 17 is arranged between the top of the first partition plate 11 and the top plate of the treatment tank 1; the middle part of the second partition board 12 is provided with a gate 18.
Further, in another embodiment, a mud level meter 81 is arranged in the sedimentation tank 15; a liquid level meter 82 and a chlorine ion concentration meter 83 are arranged in the regulating tank 16.
Further, in another embodiment, a clean water pump 84 is disposed on the clean water tank 14, and the water inlet end of the water supply pipe 92 and the water inlet end of the water outlet pipe 97 are both communicated with the clean water pump 84; pneumatic valves 85 are arranged on the water supply pipe 92 and the water outlet pipe 97.
Further, in another embodiment, a delivery pump 88 is arranged on the delivery pipe 93, and an isolation valve 87 is arranged at both the feed port and the discharge port of the delivery pump 88; the discharge port of the delivery pump 88 is also provided with a flow meter 89.
According to the description of the utility model and the attached drawings, the equipment for preparing the fine gypsum by using the wet desulphurization sludge of the utility model can be easily manufactured or used by the skilled person, and the positive effects recorded in the utility model can be generated.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (6)
1. The equipment for preparing the fine gypsum by using the wet desulphurization sludge is characterized in that: comprises a treatment box (1), a first distribution groove (2), a second distribution groove (3) and a vacuum dehydrator (4); a first partition plate (11) and a second partition plate (12) which are parallel to each other are arranged in the treatment box (1), the treatment box (1) is internally divided into three cavities through the first partition plate (11) and the second partition plate (12), and the three cavities sequentially comprise a clean water tank (14), a sedimentation tank (15) and an adjusting tank (16); a mud scraping conveyor (5) for conveying the sludge to the adjusting tank (16) is arranged in the sedimentation tank (15); a mixing structure (6) is arranged in the regulating tank (16); a leaching row (7) is also arranged above the vacuum dehydrator (4);
the sedimentation tank (15) is communicated with a first feeding pipe (91); a water supply pipe (92) is arranged between the regulating tank (16) and the clean water tank (14); a feeding pipe (93) is communicated between the regulating tank (16) and the second distribution groove (3); a second feeding pipe (94) is communicated between the first distribution groove (2) and the vacuum dehydrator (4); a third feeding pipe (95) is communicated between the second distribution groove (3) and the vacuum dehydrator (4); a water return pipe (96) communicated with the clean water tank (14) is also arranged on the vacuum dehydrator (4); the clean water tank (14) is also communicated with a water outlet pipe (97).
2. The apparatus for preparing fine gypsum from wet desulfurization sludge according to claim 1, wherein: the mixing structure (6) comprises a fan (61), an air outlet disc (62) arranged inside the adjusting tank (16) and an air outlet pipe (98) communicated from the fan (61) to the air outlet disc (62); a plurality of air outlets are arranged on the air outlet disc (62); the air outlet pipe (98) is also provided with a check valve (86) and an isolation valve (87).
3. The apparatus for preparing fine gypsum from wet desulfurization sludge according to claim 1, wherein: a water flowing port (17) is arranged between the top of the first partition plate (11) and the top plate of the treatment box (1); and a gate (18) is arranged in the middle of the second partition plate (12).
4. The apparatus for preparing fine gypsum from wet desulfurization sludge according to claim 1, wherein: a mud level meter (81) is arranged in the sedimentation tank (15); a liquid level meter (82) and a chloride ion concentration meter (83) are arranged in the regulating tank (16).
5. The apparatus for preparing fine gypsum from wet desulfurization sludge according to claim 1, wherein: a clean water pump (84) is arranged on the clean water tank (14), and the water inlet end of the water delivery pipe (92) and the water inlet end of the water outlet pipe (97) are communicated with the clean water pump (84); pneumatic valves (85) are arranged on the water supply pipe (92) and the water outlet pipe (97).
6. The apparatus for preparing fine gypsum from wet desulfurization sludge according to claim 1, wherein: a conveying pump (88) is arranged on the conveying pipe (93), and an isolating valve (87) is arranged at a feed port and a discharge port of the conveying pump (88); and a discharge hole of the conveying pump (88) is also provided with a flow meter (89).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121649956.6U CN216005591U (en) | 2021-07-20 | 2021-07-20 | Equipment for preparing fine gypsum from wet desulfurization sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121649956.6U CN216005591U (en) | 2021-07-20 | 2021-07-20 | Equipment for preparing fine gypsum from wet desulfurization sludge |
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| CN216005591U true CN216005591U (en) | 2022-03-11 |
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| CN202121649956.6U Active CN216005591U (en) | 2021-07-20 | 2021-07-20 | Equipment for preparing fine gypsum from wet desulfurization sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582261A (en) * | 2021-07-20 | 2021-11-02 | 浙江浙能嘉华发电有限公司 | Equipment and method for preparing fine gypsum from wet desulfurization sludge |
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2021
- 2021-07-20 CN CN202121649956.6U patent/CN216005591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582261A (en) * | 2021-07-20 | 2021-11-02 | 浙江浙能嘉华发电有限公司 | Equipment and method for preparing fine gypsum from wet desulfurization sludge |
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