CN202576152U - Hollow spray column type flue gas desulfurization wastewater concentration device - Google Patents
Hollow spray column type flue gas desulfurization wastewater concentration device Download PDFInfo
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- CN202576152U CN202576152U CN 201220204731 CN201220204731U CN202576152U CN 202576152 U CN202576152 U CN 202576152U CN 201220204731 CN201220204731 CN 201220204731 CN 201220204731 U CN201220204731 U CN 201220204731U CN 202576152 U CN202576152 U CN 202576152U
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- spray column
- flue gas
- spray
- concentrating unit
- desulfurization wastewater
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Abstract
The utility model provides a hollow spray column type flue gas desulfurization wastewater concentration device, so that desulfurized wastewater can be concentrated in a hollow spray column by utilizing residual heat of flue gas. The device is provided with a spray column, wherein the upper supernatant layer of the spray column is connected with a buffer tank, and a delivery pump is arranged on the connecting pipeline; the supernatant layer and the spray layer on the top of the spray column are connected through a circulating pump and a pipeline; a flue gas inlet is formed in the middle or on the top of the spray column, and correspondingly, a flue gas outlet is formed on the top or in the middle of the spray column; and the lower part of the spray column is a precipitation area, and the outlet of the precipitation area is connected with a curing system through a sludge delivery pump.
Description
Technical field
The utility model relates to a kind of flue gas desulfurization waste-water concentrating unit, is specially a kind of spray void tower formula flue gas desulfurization waste-water concentrating unit, is mainly used in the processing to the fuel-burning power plant desulfurization wastewater, belongs to the fuel-burning power plant environmental protection technical field.
Background technology
Coal accounts for the ratio of China's primary energy source production and consumption always more than 70%, the SO that produces in the combustion processes
2It is one of important topsoil material.The Eleventh Five-Year Plan period China has built a large amount of Wingdale gypsum wet flue gas desulfurizing facilities for this reason, generally contains the heavy metal element in coal and the Wingdale in the waste water that these desulfurization facilities produce, and it is acid that desulfurization wastewater is; Solid content is at 1-2%; The processing mode of at present these waste water being taked mainly is that what to adopt is physico-chemical process, adds acid that is:, adds alkali; Flocculation and settled method reclaim a part of water, transport after wherein solid waste press filtration is become filter cake.These technical matters long flow paths, floor space is big, and investment and working cost are high, and the clarification time is long, does not often reach national standard after the purification of waste water, operating whisking appliance, mud scraper failure rate height, maintaining difficulty.
Summary of the invention
The problem to the prior art existence of the utility model provides a kind of spray void tower formula flue gas desulfurization waste-water concentrating unit, thereby in the spray void tower, utilizes the stack gas waste heat to realize concentrating of desulfurization wastewater.
The purpose of the utility model realizes through following measure:
A kind of spray void tower formula flue gas desulfurization waste-water concentrating unit, this device is provided with spray column, and the supernatant liquid layer of spray column connects a baffle-box, and on connecting pipeline, is provided with transferpump; The clarification liquid layer is connected through recycle pump and pipeline with the spraying layer of spray column top layer; The middle part or the cat head of spray column are provided with gas approach, and accordingly, the cat head or the middle part of spray column are provided with exhanst gas outlet; The spray column bottom is the negative area, and the negative area outlet links to each other with cure system through the slurry transportation pump.
The top, negative area of the spray column of the utility model is provided with grid-like flushing pipeline.
The exhanst gas outlet position of spray column is provided with mist eliminator, and correspondence is provided with the mist eliminator flushing pipeline, is used for removing the drop that flue gas exists;
Said spraying layer adopts conical hollow nozzle or solid cone shaped nozzle.
The gas approach of said spray column is communicated with former flue, and exhanst gas outlet returns desulfuration absorbing tower with flue gas and is communicated with.
The utility model is compared prior art and is had following advantage:
Show that through test the apparatus structure of the utility model is simple, arrangement convenience has higher waste water to concentrate performance, and the desulfurization wastewater concentration rate can be promoted to about solid content 5-10%, has effectively practiced thrift the desulfurization wastewater processing cost, is with a wide range of applications.
This device has been taked a kind of new processing mode to the fuel-burning power plant desulfurization wastewater, promptly adopts and utilizes the fume afterheat type of heating, after desulfurization wastewater is concentrated, can add lime, flying dust etc. and carry out mixingly, processes solid waste and handles.
The utility model adopts spray void tower system, avoids the latch up phenomenon in system's concentration process; Can utilize fume afterheat to evaporate save energy; Dosing sedimentation and flocculation one are realized in the spray column bottom, effectively reduce floor space.
The waste water that reclaims returns the absorption tower with the form of steam with flue gas, effectively the conserve water resource.
Spray column can be provided with mist eliminator efficient recovery liquid water in outlet, avoids the heavy metal the like waste in the waste water to return desulphurization system with drop.
Description of drawings
Fig. 1 is reverse-flow spray void tower formula flue gas desulfurization waste-water concentration systems figure;
Fig. 2 is downflow system spray void tower formula flue gas desulfurization waste-water concentration systems figure;
Among the figure: the 1-baffle-box; 2-waste water transferpump; The 3-recycle pump; The 4-spraying layer; The 5-washing control valve; The grid-like flushing pipeline of 6-; The 7-spray column; The 8-mist eliminator; 9-mist eliminator flushing pipeline; 10-slurry transportation pump; 11-pump entry valve; The 12-chemical feed pipe.Each letter is represented respectively among the figure: the a-desulfurization wastewater; The b-flue gas returns desulfuration absorbing tower; The former flue heat flue gas of c-; D-removes press filteration system.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
As shown in Figure 1, the kind spray void tower formula flue gas desulfurization waste-water concentrating unit of the utility model design, mainly by baffle-box 1, waste water transferpump 2; Recycle pump 3, spraying layer 4, washing control valve 5, grid-like flushing pipeline 6; Spray column 7, mist eliminator 8, mist eliminator flushing pipeline 9; Slurry transportation pump 10, pump entry valve 11, chemical feed pipe 12 compositions such as grade;
Wherein spray column 7 is provided with mist eliminator 8 and flushing pipeline thereof; Be used for avoiding the solid waste of desulfurization wastewater to return desulphurization system with drop, spraying layer 4 is used to spray desulfurization wastewater, adopts hollow vertebra nozzle or solid vertebra nozzle; Spray droplet particle diameter 0.5-5mm; Make desulfurization wastewater and the abundant contact heat-exchanging of hot flue gas, the void tower form is adopted in this zone, and the wastewater trough of lower floor negative area is used for storing the solid of desulfurization wastewater and sedimentation waste water.
Wherein recycle pump 3 inlet ducts are arranged on the supernatant liquid layer, extract clear liquor and circulate;
Wherein grid-like flushing pipeline 6 extracts supernatant liquid and washes, and can be connected to recycle pump 3 export pipelines, also can be provided with separately, can adopt common slush pump or pulse pump when being provided with separately, and grid-like flushing pipeline 6 is only opened where necessary.
The novel reverse-flow structure that adopts Fig. 1 of this practical machine also can adopt Fig. 2 downflow system structure.Wherein following current and adverse current be flue gas traffic direction and spray water falling direction in the same way or oppositely.
The working process of the utility model is following:
1. desulfurization wastewater gets into 1 baffle-box, sends into spray column 7 with waste water transferpump 2;
2. desulfurization wastewater is delivered to 4 spraying layers by 3 recycle pumps in 7 spray columns;
3. former flue comes hot flue gas to be admitted to spray column 7, in spray column 7 uphill process, contact with the desulfurization wastewater of spray downwards, and is concentrated thereby the moisture in this course in the desulfurization wastewater is taken away quilt by flue gas;
4. roll back negative area, spray column 7 bottom under the desulfurization wastewater, add appropriate alkaline liquor by chemical feed pipe 12 and carry out neutralization precipitation;
5. the negative area is provided with grid-like flushing pipeline 6, and intermittent type unlatching washing control valve 5 washes avoids settling process to stop up;
6. part is captured by mist eliminator 8 with the drop that flue gas rises, and intermittence utilizes 9 pairs of mist eliminators of mist eliminator flushing pipeline to wash, and avoids mist eliminator to stop up;
7. solid content higher concentrated slurry in bottom is delivered to cure system by slurry transportation pump 10.
Claims (5)
1. one kind sprays void tower formula flue gas desulfurization waste-water concentrating unit, and this device is provided with spray column, it is characterized in that: the supernatant liquid layer of spray column connects a baffle-box, and on connecting pipeline, is provided with transferpump; The clarification liquid layer is connected through recycle pump and pipeline with the spraying layer of spray column top layer; The middle part or the cat head of spray column are provided with gas approach, and accordingly, the cat head or the middle part of spray column are provided with exhanst gas outlet; The spray column bottom is the negative area, and the negative area outlet links to each other with cure system through the slurry transportation pump.
2. concentrating unit according to claim 1 is characterized in that: the top, negative area of spray column is provided with grid-like flushing pipeline.
3. concentrating unit according to claim 1 and 2 is characterized in that: the exhanst gas outlet position of spray column is provided with mist eliminator, and correspondence is provided with the mist eliminator flushing pipeline.
4. concentrating unit according to claim 3 is characterized in that: said spraying layer adopts conical hollow nozzle or solid cone shaped nozzle.
5. concentrating unit according to claim 4 is characterized in that: the gas approach of said spray column is communicated with former flue, exhanst gas outlet and desulfuration absorbing tower inlet flue gas system connectivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204731 CN202576152U (en) | 2012-05-09 | 2012-05-09 | Hollow spray column type flue gas desulfurization wastewater concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204731 CN202576152U (en) | 2012-05-09 | 2012-05-09 | Hollow spray column type flue gas desulfurization wastewater concentration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576152U true CN202576152U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220204731 Expired - Lifetime CN202576152U (en) | 2012-05-09 | 2012-05-09 | Hollow spray column type flue gas desulfurization wastewater concentration device |
Country Status (1)
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| CN (1) | CN202576152U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145230A (en) * | 2016-08-30 | 2016-11-23 | 成都锐思环保技术股份有限公司 | A kind of fume afterheat processes the system and method for desulfurization wastewater |
| CN107162305A (en) * | 2017-07-07 | 2017-09-15 | 金川集团股份有限公司 | A kind of acid waste water processing unit and its application method |
| CN107930175A (en) * | 2017-12-28 | 2018-04-20 | 沈阳东方钛业股份有限公司 | A kind of crystallizer for MVR sewage disposal systems |
| US20220023796A1 (en) * | 2018-11-29 | 2022-01-27 | Aience Co., Ltd. | Exhaust gas purification system |
| CN114590858A (en) * | 2022-04-07 | 2022-06-07 | 山西钧泰源科技有限公司 | Novel vertical three-phase evaporative separator for desulfurization waste liquid |
-
2012
- 2012-05-09 CN CN 201220204731 patent/CN202576152U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106145230A (en) * | 2016-08-30 | 2016-11-23 | 成都锐思环保技术股份有限公司 | A kind of fume afterheat processes the system and method for desulfurization wastewater |
| CN107162305A (en) * | 2017-07-07 | 2017-09-15 | 金川集团股份有限公司 | A kind of acid waste water processing unit and its application method |
| CN107930175A (en) * | 2017-12-28 | 2018-04-20 | 沈阳东方钛业股份有限公司 | A kind of crystallizer for MVR sewage disposal systems |
| US20220023796A1 (en) * | 2018-11-29 | 2022-01-27 | Aience Co., Ltd. | Exhaust gas purification system |
| US11738304B2 (en) * | 2018-11-29 | 2023-08-29 | Nagase & Co., Ltd. | Exhaust gas purification system |
| CN114590858A (en) * | 2022-04-07 | 2022-06-07 | 山西钧泰源科技有限公司 | Novel vertical three-phase evaporative separator for desulfurization waste liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |