CN204746595U - Be used for waste incineration flue gas dust removal wet electrostatic precipitator - Google Patents
Be used for waste incineration flue gas dust removal wet electrostatic precipitator Download PDFInfo
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- CN204746595U CN204746595U CN201520446239.1U CN201520446239U CN204746595U CN 204746595 U CN204746595 U CN 204746595U CN 201520446239 U CN201520446239 U CN 201520446239U CN 204746595 U CN204746595 U CN 204746595U
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Abstract
The utility model discloses a be used for waste incineration flue gas dust removal 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, HF, hydrochloric acid, heavy metal etc. And friendly to environment has good economic benefits and social.
Description
Technical field
The utility model belongs to garbage-incineration smoke purifying technical field, and particularly one is used for flue gas of refuse burning dedusting wet cottrell.
Background technology
Burn as innoxious the most thoroughly, subtract the important technology that appearanceizations is the most remarkable, resourcebility producing level is the highest a kind for the treatment of technology has become current international community domestic rubbish disposal.Flue gas of refuse burning composition is extremely complicated, and major pollutants have flue dust (flying dust), sour gas, heavy metal and dioxin etc.If the non-combustible material that in soot dust granule owner Refuse Incineration Process, flue gas is carried secretly or the small inert inorganic particulate material that combustion process produces, as ash content, inorganic salts, coagulable gas pollutant and harmful heavy metallic oxide.China has issued " consumer waste incineration Environmental capacity standard " for 2014, and in regulation domestic waste incineration discharge flue gas, particle concentration is less than 20mg/m
3, made more strict restriction to the discharge standard of flue gas of refuse burning, as can be seen here, rationally effective fume treatment technology is the necessary condition ensureing garbage incinerating power plant promotion and implementation.
Wet-esp technology is as the efficient dust treatment technology of one, and application worldwide has had century more than one, being widely used of the industries such as metallurgy, chemical industry.But garbage burning factory flue gas is the dry state flue gas that cigarette temperature is higher, and containing the stronger sour gas of the corrosivity such as HCl, HF, cause the large-scale application of current wet electrical dust precipitator garbage burning factory at home still more rare; In addition, wet electrical dust precipitator water consumption is huge is also its Problems existing.To sum up, be necessary very much to develop a kind of wet-esp technology being applicable to flue gas of refuse burning process, can solve the problem, and reach up-to-date discharge standard, to meet the requirement of environmental protection.
Summary of the invention
The purpose of this utility model is just to the deficiencies in the prior art, there is provided a kind of for flue gas of refuse burning dedusting wet cottrell, the utility model can particle in efficient removal flue gas of refuse burning and sour gas, corrosion resistance is strong, realize grey water circulation use simultaneously, greatly reduce water consumption, can prevent again buck from occurring secondary pollution.
For achieving the above object, the utility model is by the following technical solutions:
A kind of for flue gas of refuse burning dedusting wet cottrell, comprise flue gas humidifying device, wet electrostatic flue gas purification system, wastewater recycling system, described wet electrostatic flue gas purification system mainly comprises spray equipment, positive plate, cathode line, described waste water circulation 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 delivery port of described cyclic water tank is communicated with water circulating pump by pipeline, 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, and the delivery port of described lye tank is by the alkali lye inlet communication of lye pump and pipeline and cyclic water tank, and described positive plate is C type or Z-type, and described cathode line is prickle wire or fish-bone line.
Further, the precipitation solution delivery port of waste water tank bottom is communicated with waste water pump by pipeline.
Further, described humidifying device adopts two-fluid spray nozzle.
Further, described positive plate is C type, and described cathode line is prickle wire.
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 conducive to particulate matter removing, adopt wastewater recycling system, treated recirculated water can be recycled, recycle treated recirculated water, greatly reduce the water consumption cost of wet electrical dust precipitator, solve buck secondary pollution problem, by optimizing spray form, sparger arrangement mode, the adjustment spray cycle, while minimizing drop carries, ensure that pole plate moisture film is uniform, prevent equipment corrosion, realize efficient deashing, the particle of efficient removal flue gas of refuse burning, reach discharge standard, and HCl in flue gas can be removed, the sour gas such as HF, and positive plate and cathode line adopt material to be 316L, the nozzle of described humidifying device 1 and spray equipment adopts material to be 316L, reduce equipment corrosion, increase the service life.
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 present invention below in conjunction with accompanying drawing, object of the present invention and effect will become more obvious.
Embodiment: a kind of for flue gas of refuse burning dedusting 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, waste water circulation 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 delivery port of cyclic water tank 8 is communicated with water circulating pump 12 by pipeline, 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, the precipitation solution delivery port of waste water tank 7 bottom is communicated with waste water pump 11 by pipeline, humidifying device 1 adopts two-fluid spray nozzle, positive plate 5 is C type, cathode line 6 is prickle wire, 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, and in gas approach, flue gas humidifying device sprays misty liquid droplets to flue gas, flue-gas temperature will be 45 ~ 55 DEG C, reach capacity even hypersaturated state simultaneously, and the medium and small condensable particle of flue gas is condensed into the bulky grain being conducive to removing; The power plant of wet-esp flue gas purification system is entered through the flue gas of decreasing temperature and increasing humidity, after corona zone is charged, the pole plate motion on the sunny side such as particle, HCl, HF sour gas in flue gas, and assemble on the surface at positive plate thus be removed, the self-wetted electrostatic precipitation flue gas purification system of the flue gas after purification outlet drain.
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 spray equipment Part II spray equipment spray, 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 the efficiency of dust collection of fine particulates further.By adjustment spray form, sparger arrangement mode, adjustment spray cycle, reach the moisture film forming uniformly continous with minimum water consumption on pole plate, while minimizing drop carries, ensure that pole plate and polar curve remain clean state, prevent equipment corrosion, realize efficient deashing.
Wet electrostatic flue gas purification system internal polar plate and polar curve flushing water enter waste water tank and carry out precipitate and separate, supernatant enters cyclic water tank, in cyclic water tank, add alkali lye with controlled circulation water pH value, meanwhile, cyclic water tank regular replenishment water for industrial use maintains systematic water balance; Process Posterior circle 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 buck, greatly reduce the water consumption cost of wet electrical dust precipitator and prevent buck from occurring secondary pollution.Due to recirculated water as shower water through in alkali lye and after use, and to spray continuously, guarantee that the flushing liquor of wet electrical dust precipitator inside has lower acidity all the time, effectively prevent the generation of acid corrosion phenomenon, effectively extend the service life of wet electrical dust precipitator.
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 (5)
1. for a flue gas of refuse burning dedusting 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) mainly comprises spray equipment (4), positive plate (5), cathode line (6), described waste water circulation 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 delivery port of described cyclic water tank (8) is communicated with water circulating pump (12) by pipeline, 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), described positive plate (5) is C type or Z-type, and described cathode line (6) is prickle wire or fish-bone line.
2. one according to claim 1 is used for flue gas of refuse burning dedusting wet cottrell, and it is characterized in that, the precipitation solution delivery port of waste water tank (7) bottom is communicated with waste water pump (11) by pipeline.
3. one according to claim 1 is used for flue gas of refuse burning dedusting wet cottrell, it is characterized in that, described humidifying device (1) adopts two-fluid spray nozzle.
4. one according to claim 1 is used for flue gas of refuse burning dedusting wet cottrell, and it is characterized in that, described positive plate (5) is C type, and described cathode line (6) is prickle wire.
5. one according to claim 1 is used for flue gas of refuse burning dedusting wet cottrell, and it is characterized in that, the solution in described lye tank (10) is NaOH solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520446239.1U CN204746595U (en) | 2015-06-26 | 2015-06-26 | Be used for waste incineration flue gas dust removal wet electrostatic precipitator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520446239.1U CN204746595U (en) | 2015-06-26 | 2015-06-26 | Be used for waste incineration flue gas dust removal wet electrostatic precipitator |
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| CN204746595U true CN204746595U (en) | 2015-11-11 |
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| CN201520446239.1U Expired - Fee Related CN204746595U (en) | 2015-06-26 | 2015-06-26 | Be used for waste incineration flue gas dust removal wet electrostatic precipitator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344475A (en) * | 2015-11-24 | 2016-02-24 | 山东信发环保工程有限公司 | Dry-wet mixed type electrostatic precipitator and working method thereof |
| CN107350082A (en) * | 2017-07-12 | 2017-11-17 | 浙江中泰环保股份有限公司 | A kind of VMC wet cottrell |
| CN107413528A (en) * | 2016-05-23 | 2017-12-01 | 付怀仁 | A kind of wet-esp residual neat recovering system |
-
2015
- 2015-06-26 CN CN201520446239.1U patent/CN204746595U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344475A (en) * | 2015-11-24 | 2016-02-24 | 山东信发环保工程有限公司 | Dry-wet mixed type electrostatic precipitator and working method thereof |
| CN107413528A (en) * | 2016-05-23 | 2017-12-01 | 付怀仁 | A kind of wet-esp residual neat recovering system |
| CN107350082A (en) * | 2017-07-12 | 2017-11-17 | 浙江中泰环保股份有限公司 | A kind of VMC wet cottrell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20200626 |