CN204866188U - Be used for semidry method (CFB) waste water zero release wet electrostatic precipitator - Google Patents
Be used for semidry method (CFB) waste water zero release wet electrostatic precipitator Download PDFInfo
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- CN204866188U CN204866188U CN201520445964.7U CN201520445964U CN204866188U CN 204866188 U CN204866188 U CN 204866188U CN 201520445964 U CN201520445964 U CN 201520445964U CN 204866188 U CN204866188 U CN 204866188U
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- flue gas
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- 239000002351 wastewater Substances 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000003546 flue gas Substances 0.000 claims abstract description 61
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 56
- 239000007921 spray Substances 0.000 claims abstract description 28
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 27
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 9
- 238000000746 purification Methods 0.000 claims description 36
- 239000008235 industrial water Substances 0.000 claims description 20
- 238000004064 recycling Methods 0.000 claims description 9
- 230000005684 electric field Effects 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
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- 239000000428 dust Substances 0.000 abstract description 13
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000003795 desorption Methods 0.000 abstract 1
- 230000003068 static Effects 0.000 abstract 1
- 230000003009 desulfurizing Effects 0.000 description 5
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- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
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- 230000001351 cycling Effects 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
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- 239000000779 smoke Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- NMCUIPGRVMDVDB-UHFFFAOYSA-L Iron(II) chloride Chemical compound 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Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
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- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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Abstract
The utility model discloses a be used for semidry method (CFB) waste water zero release wet electrostatic precipitator, including flue gas humidifying device, wet -type static gas cleaning system, waste water cyclic utilization system, wet -type gas cleaning system mainly includes spray set, anode plate, negative pole line, useless water circulating system includes waste water tank, circulation tank, waste water pump, circulating water pump, lye tank, lye pump, automatic filtration ware, technology water tank and technology water pump. The utility model discloses the waste water zero release is realized simultaneously to slight dust in can high -efficient desorption flue gas, SO3, heavy metal etc. And is good to the environment, has good economic benefits and social.
Description
Technical field
The utility model belongs to coal-fired plant flue gas purification techniques field, and particularly one is used for semidry method (CFB) wastewater zero discharge wet cottrell.
Background technology
The pollutant that coal-burning power plant and Industrial Boiler produce is the main source of air environmental pollution, and the regulation dust emission limit value of up-to-date ultra-clean discharge standard reaches 5mg/Nm
3, traditional dry electric precipitation device has not reached this discharge standard.Wet electrical dust precipitator adopts the mode antianode plate of Water spray to carry out deashing, and to the removal efficiency of acid mist, toxic heavy metal, especially PM2.5 all higher than 95%, dust emission concentration is lower than 5mg/Nm
3.
Desulfurization absorption and the product process of semidry method (CFB) are all carried out under dry state, this method have discharge without sewage spent acid, equipment corrosion degree is comparatively light, flue gas in purification process without significant hypothermal, be beneficial to chimney exhaust diffusion, the secondary pollution advantage such as less.Semidry method (CFB) exit gas temperature is 70-90 DEG C, higher than wet desulfurization system (<70 DEG C), and be dry flue gas, do not meet the requirement of existing wet electrical dust precipitator entrance, therefore existing wet electrical dust precipitator cannot be applied to the power plant adopting semi-dry process flue gas desulphurization system (CFB).In addition, affect secondary pollution and water consumption problem that wet electrical dust precipitator application also has water, do not solve cycling utilization of wastewater problem, wet electrical dust precipitator is just difficult to apply in coal-burning power plant.The water of discharging after wet electrical dust precipitator spray irrigation, containing a large amount of acidic materials and fine particulates, direct discharge can produce secondary pollution, and water consumption is large, operating cost is high, and water must recycle.Therefore, be necessary very much to develop a kind of New type wet electric cleaner, the power plant adopting semi-dry process flue gas desulphurization system (CFB) can be applied to, realize cycling utilization of wastewater simultaneously, reach the requirement of wastewater zero discharge.
Summary of the invention
The purpose of this utility model is just to the deficiencies in the prior art, provides a kind of for semidry method (CFB) wastewater zero discharge wet cottrell, and the utility model can fine solid particle, SO in efficient removal flue gas
3,heavy metals etc., realize wastewater zero discharge simultaneously, environmentally friendly, have good economic benefit and social benefit.
For achieving the above object, the utility model is by the following technical solutions:
A kind of for semidry method (CFB) wastewater zero discharge wet cottrell, comprise flue gas humidifying device, wet electrostatic flue gas purification system, wastewater recycling system, described wet electrostatic flue gas purification system comprises spray equipment, positive plate, cathode line, described wastewater recycling system comprises waste water tank, cyclic water tank, industrial water tank, lye tank, waste water pump, water circulating pump, industrial water pump, lye pump and automatic filter, described humidifying device is positioned on the gas approach of wet electrostatic flue gas purification system, and be communicated with the delivery port of automatic filter by pipeline, described wet electrostatic flue gas purification system at least comprises two pieces of positive plates vertically be arranged in parallel, cathode line is equipped with between described positive plate, spray equipment is provided with above described wet electrostatic flue gas purification system electric field, described spray equipment is divided into Part I and Part II, the spray equipment of described Part I is positioned at the top of wet electrostatic flue gas purification system outlet side, be communicated with industrial water tank with pipeline by industrial water pump, the spray equipment of described Part II is positioned at the top of wet electrostatic flue gas purification system entrance side, be communicated with the delivery port of automatic filter by pipeline, the water inlet of described waste water tank is communicated with the discharge of wastewater mouth of wet electrostatic flue gas purification system by pipeline, the clarified solution delivery port on waste water tank top is communicated with the water inlet of cyclic water tank by pipeline, the precipitation solution delivery port of waste water tank bottom is communicated with waste water pump by pipeline, the delivery port of described cyclic water tank is communicated with water circulating pump by pipeline, and cyclic water tank is also communicated with water for industrial use water source by pipeline, described water circulating pump is communicated with the water inlet of automatic filter by pipeline, described industrial water tank is communicated with water for industrial use water source by pipeline, the delivery port of described lye tank is by the alkali lye inlet communication of lye pump and pipeline and cyclic water tank.
Further, described humidifying device adopts two-fluid spray nozzle.
Further, in described lye tank, solution is NaOH solution.
Compared with prior art, the utility model adopts flue gas humidifying device, spray at wet electrostatic flue gas purification system entrance, decreasing temperature and increasing humidity is carried out to high-temperature flue gas, flue gas is reached capacity even hypersaturated state, make condensable particle generation condensation growth, be removed further, can SO be realized simultaneously
3cooperation-removal.The utility model adopts wastewater recycling system, recycles treated recirculated water, greatly reduces the water consumption cost of wet electrical dust precipitator and prevents waste water from occurring secondary pollution; The outer draining of waste water pump can do the multistage humidification water of semidry method (CFB), dust-laden waste water is used for the humidification being used for desulfurizing agent in semi-dry desulphurization system, to improve semi-dry desulphurization system pollutant desulfuration efficiency, realize wastewater zero discharge, avoid the problem of wastewater treatment, the water outlet of waste water pump can enter semidry method CFB, as multistage humidification water.And the efficient fine solid particle of the utility model, heavy metal Hg and SO
3, NH
4deng the aerosol formed, reduce desulfurizing tower outlet Pollutant emission concentration, reach up-to-date discharge standard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, flue gas humidifying device, 2, wet electrostatic flue gas purification system, 3, wastewater recycling system, 4, spray equipment, 5, positive plate, 6, cathode line, 7, waste water tank, 8, cyclic water tank, 9, industrial water tank, 10, lye tank, 11, waste water pump, 12, water circulating pump, 13, industrial water pump, 14, lye pump, 15, automatic filter.
Detailed description of the invention
Further illustrate the utility model below in conjunction with accompanying drawing, the purpose of this utility model and effect will become more obvious;
Embodiment: a kind of for semidry method (CFB) wastewater zero discharge wet cottrell, comprises flue gas humidifying device 1, wet electrostatic flue gas purification system 2, wastewater recycling system 3, wet electrostatic flue gas purification system 2 mainly comprises spray equipment 4, positive plate 5, cathode line 6, wastewater recycling system 3 comprises waste water tank 7, cyclic water tank 8, industrial water tank 9, lye tank 10, waste water pump 11, water circulating pump 12, industrial water pump 13, lye pump 14 and automatic filter 15, humidifying device 1 is positioned on the gas approach of wet electrostatic flue gas purification system 2, and be communicated with by the delivery port of pipeline with automatic filter 15, wet electrostatic flue gas purification system 2 comprises two pieces of positive plates vertically be arranged in parallel 5, cathode line 6 is equipped with between positive plate, spray equipment 4 is provided with above wet electrostatic flue gas purification system 2 electric field, spray equipment 4 is divided into Part I and Part II, the spray equipment of Part I is positioned at the top of wet electrostatic flue gas purification system 2 outlet side, be communicated with industrial water tank 9 with pipeline by industrial water pump 13, the spray equipment of Part II is positioned at the top of wet electrostatic flue gas purification system 2 entrance side, be communicated with by the delivery port of pipeline with automatic filter 15, the water inlet of waste water tank 7 is communicated with the discharge of wastewater mouth of wet electrostatic flue gas purification system 2 by pipeline, the clarified solution delivery port on waste water tank 7 top is communicated with by the water inlet of pipeline with cyclic water tank 8, the precipitation solution delivery port of waste water tank 7 bottom is communicated with waste water pump 11 by pipeline, the delivery port of cyclic water tank 8 is communicated with water circulating pump 12 by pipeline, and cyclic water tank 8 is also communicated with water for industrial use water source by pipeline, water circulating pump 12 is communicated with by the water inlet of pipeline with automatic filter 15, industrial water tank 9 is communicated with water for industrial use water source by pipeline, the delivery port of lye tank 10 passes through the alkali lye inlet communication of lye pump 14 and pipeline and cyclic water tank 8, and humidifying device 1 adopts two-fluid spray nozzle, and in lye tank 10, solution is NaOH solution.
Implementation process of the present utility model is as follows:
Flue gas enters from wet electrostatic flue gas purification system smoke inlet, in gas approach, flue gas humidifying device sprays misty liquid droplets to flue gas, and flue gas is reached capacity even hypersaturated state, in flue gas, condensable particle is condensed into the bulky grain being conducive to removing, and flue-gas temperature reduces simultaneously; Flue gas is by the electric field of wet-esp flue gas purification system subsequently, the fine solid particle in flue gas, heavy metal and SO
3etc. being removed, complete gas cleaning, final purification flue gas wet electrostatic flue gas purification system exhanst gas outlet drains into chimney.
Arrange spray equipment above wet electrostatic flue gas purification system electric field, form continuous print moisture film on positive plate surface, the dust of polar board surface and acid mist etc. are rinsed well together; The sanitary industrial water of water only for being provided by industrial water pump by industrial water tank of the Part II spray equipment spray of spray equipment, guarantee that the flushing water of flue gas afterbody is supplementary new water all the time, avoid the flue gas of a small amount of suspension to wet electrostatic flue gas purification system outlet side remaining in recirculated water to cause secondary pollution, improve efficiency of dust collection further.
First wet electrostatic flue gas purification system flushing waste water enters waste water tank and carries out preliminary sedimentation separation, and the clarified solution on waste water tank top enters cyclic water tank, in cyclic water tank by from the NaOH solution of lye tank and, cyclic water tank regular replenishment water for industrial use.Recirculated water passes through automatic filter subsequently, after filtering, a part recirculated water enter flue gas humidifying device for give flue gas humidifying cooling, another part is for rinsing positive plate and the cathode line of wet electrostatic flue gas purification system smoke inlet side, thus realize recycling of waste water, greatly reduce the water consumption cost of wet electrical dust precipitator and prevent waste water from occurring secondary pollution; Waste water tank bottom concentrates waste water and enters the humidification of semi-dry desulphurization system (CFB) for desulfurizing agent, to improve semi-dry desulphurization system pollutant desulfuration efficiency, realizes wastewater zero discharge, avoids the problem of wastewater treatment.
Above-described embodiment is one of the present utility model preferably scheme, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (3)
1. for semidry method (CFB) wastewater zero discharge wet cottrell, it is characterized in that, comprise flue gas humidifying device (1), wet electrostatic flue gas purification system (2), wastewater recycling system (3), described wet electrostatic flue gas purification system (2) comprises spray equipment (4), positive plate (5), cathode line (6), described wastewater recycling system (3) comprises waste water tank (7), cyclic water tank (8), industrial water tank (9), lye tank (10), waste water pump (11), water circulating pump (12), industrial water pump (13), lye pump (14) and automatic filter (15), described humidifying device (1) is positioned on the gas approach of wet electrostatic flue gas purification system (2), and be communicated with by the delivery port of pipeline with automatic filter (15), described wet electrostatic flue gas purification system (2) at least comprises two pieces of positive plates vertically be arranged in parallel (5), cathode line (6) is equipped with between described positive plate, spray equipment (4) is provided with above described wet electrostatic flue gas purification system (2) electric field, described spray equipment (4) is divided into Part I and Part II, the spray equipment of described Part I is positioned at the top of wet electrostatic flue gas purification system (2) outlet side, be communicated with industrial water tank (9) with pipeline by industrial water pump (13), the spray equipment of described Part II is positioned at the top of wet electrostatic flue gas purification system (2) entrance side, be communicated with by the delivery port of pipeline with automatic filter (15), the water inlet of described waste water tank (7) is communicated with by the discharge of wastewater mouth of pipeline with wet electrostatic flue gas purification system (2), the clarified solution delivery port on waste water tank (7) top is communicated with by the water inlet of pipeline with cyclic water tank (8), the precipitation solution delivery port of waste water tank (7) bottom is communicated with waste water pump (11) by pipeline, the delivery port of described cyclic water tank (8) is communicated with water circulating pump (12) by pipeline, and cyclic water tank (8) is also communicated with water for industrial use water source by pipeline, described water circulating pump (12) is communicated with by the water inlet of pipeline with automatic filter (15), described industrial water tank (9) is communicated with water for industrial use water source by pipeline, the delivery port of described lye tank (10) passes through the alkali lye inlet communication of lye pump (14) and pipeline and cyclic water tank (8).
2. one according to claim 1 is used for semidry method (CFB) wastewater zero discharge wet cottrell, it is characterized in that, described humidifying device (1) adopts two-fluid spray nozzle.
3. one according to claim 1 is used for semidry method (CFB) wastewater zero discharge wet cottrell, and it is characterized in that, described lye tank (10) interior solution is NaOH solution.
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| CN201520445964.7U CN204866188U (en) | 2015-06-26 | 2015-06-26 | Be used for semidry method (CFB) waste water zero release wet electrostatic precipitator |
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| CN201520445964.7U CN204866188U (en) | 2015-06-26 | 2015-06-26 | Be used for semidry method (CFB) waste water zero release wet electrostatic precipitator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874481A (en) * | 2015-06-26 | 2015-09-02 | 浙江中泰环保股份有限公司 | Wet type electrostatic dust collector for semidry method (CFB) waste water zero discharging |
| CN111076196A (en) * | 2019-12-27 | 2020-04-28 | 合肥恒力装备有限公司 | Fluorine-containing organic waste gas treatment and wastewater zero discharge system and method |
-
2015
- 2015-06-26 CN CN201520445964.7U patent/CN204866188U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874481A (en) * | 2015-06-26 | 2015-09-02 | 浙江中泰环保股份有限公司 | Wet type electrostatic dust collector for semidry method (CFB) waste water zero discharging |
| CN111076196A (en) * | 2019-12-27 | 2020-04-28 | 合肥恒力装备有限公司 | Fluorine-containing organic waste gas treatment and wastewater zero discharge system and method |
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