CN105727712B - A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln - Google Patents
A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln Download PDFInfo
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- CN105727712B CN105727712B CN201610286348.0A CN201610286348A CN105727712B CN 105727712 B CN105727712 B CN 105727712B CN 201610286348 A CN201610286348 A CN 201610286348A CN 105727712 B CN105727712 B CN 105727712B
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- denitration
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- liquid spray
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses a kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln, including tower body, a horizontally disposed partition plate is equipped with tower body, tower body is divided into mutually independent upper warehouse and lower warehouse by partition plate, the denitration oxidation cycle system water outlet with being connected inside lower warehouse is equipped with the lower part side of lower warehouse, denitration oxidation cycle system water outlet is connected by pipeline with denitration liquid precipitate circulatory pool, top in lower warehouse is equipped with denitration liquid spray equipment, denitration liquid spray equipment is connected by pipeline with denitration oxidation cycle system water inlet, denitration oxidation cycle system water inlet is connected by the pipeline equipped with water pump with denitration liquid precipitate circulatory pool, lower warehouse side between denitration liquid spray equipment and denitration oxidation cycle system water outlet is equipped with gas inlet.The present invention is using the above scheme, reasonable in design, realizes the integrated treatment of denitrating flue gas desulfurization and dedusting, and investment is small, and floor space is small, and removal efficiency is high, good purification.
Description
Technical field：
The present invention relates to a kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln.
Background technology：
If all burning clean fuel, this is unpractical.Although fire coal can produce smoke contamination, labor intensity is big,
Since coal-fired furnace expenditure of construction and fuel cost are low, and rich coal resources in China, it is widely distributed, it can gather materials on the spot,
So to vast medium-and-small sized enterprise, particularly township enterprise, in some time to come, coal-fired furnace will be used, this is also accorded with
Close the current energy policy in China.From this, the smoke contamination that coal-fired furnace burning produces is still afterwards in some time
Perplex our problem.It cannot reach country's discharge mark mostly from the flue gas dust concentration and lingemann blackness of coal-fired furnace discharge
It is accurate.A large amount of flue dust, SO2 and NOx for being discharged into air have seriously affected the health of crowd, and restrict the sustainable of social economy
Development.It is the research class that current environmental protection aspect attracts people's attention for this reason, taking the flue gases purification of effective coal-fired ceramic kiln
Topic.
Single equipment is respectively adopted to carry out in denitration for coal-fired ceramic kiln flue gas, desulfurization and dedusting at present.
Such as the common method of tunnel kiln smoke-gas denitration device is selective catalytic reduction (SCR), and selective non-catalytic reduction method
(SNCR), the reducing agent in both method of denitration generally uses ammoniation, such as ammonium hydroxide, liquefied ammonia or urea, operation side
Method is to spray the lysate of ammoniation in stove.Both method of denitration have the following disadvantages：1. removal efficiency is low；2. ammonia
The bad control of escape, produce peculiar smell cause secondary pollution；3. operating cost is too high；4. liquefied ammonia explosive.Country's desulfurization at present
Common method is to use a desulfurizing tower, is sprayed with lye, is reacted using alkaline matter and SO2, with to tunnel kiln smoke-gas into
Row desulfurization process.Dust collecting process uses dry-type dedusting equipment, such as bag filter more at present, but needs to regularly replace cloth
Bag, increases cost.Tunnel kiln smoke-gas desulphurization and denitration and dedusting are separated respectively with single equipment as this at present
Reason, investment is big, takes up a large area, and clean-up effect is bad.
The content of the invention：
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of coal-fired ceramic kiln flue gas desulfurization denitration dust-removing
Integration apparatus, realizes the integrated treatment of denitrating flue gas desulfurization and dedusting, and investment is small, and floor space is small, and removal efficiency is high, purification
Effect is good, solves problems of the prior art.
The present invention is that technical solution is used by solving above-mentioned technical problem：
A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln, including tower body, are equipped with one in tower body
Tower body is divided into mutually independent upper warehouse and lower warehouse by horizontally disposed partition plate, partition plate, is equipped with the lower part side of lower warehouse
The denitration oxidation cycle system water outlet being connected with inside lower warehouse, denitration oxidation cycle system water outlet is by pipeline with taking off
Nitre liquid precipitate circulatory pool is connected, and the top in lower warehouse is equipped with denitration liquid spray equipment, and denitration liquid spray equipment passes through pipeline
It is connected with denitration oxidation cycle system water inlet, denitration oxidation cycle system water inlet passes through pipeline and denitration liquid equipped with water pump
Precipitation circulatory pool is connected, and the lower warehouse side between denitration liquid spray equipment and denitration oxidation cycle system water outlet is equipped with cigarette
Gas import, is equipped with desulphurization denitration circulatory system water outlet, desulphurization denitration circulatory system water outlet leads in the lower part side of upper warehouse
Piping is connected with desulphurization denitration liquid precipitate circulatory pool, and the middle part in upper storehouse body is equipped with desulphurization denitration liquid spray equipment, desulfurization
Denitration liquid spray equipment is connected by pipeline with desulphurization denitration circulatory system water inlet, and desulphurization denitration circulatory system water inlet passes through
Pipeline equipped with water pump is connected with desulphurization denitration liquid precipitate circulatory pool, demister is equipped with the top of upper warehouse, in upper warehouse
Top is equipped with exhanst gas outlet, the bottom in upper storehouse body be equipped with several inverted Us bubbling pipe, the lower part air inlet of bubbling pipe with
The inside of lower warehouse is connected, and the top gas outlet of bubbling pipe is stretched into the desulphurization denitration liquid of warehouse bottom, and desulphurization denitration follows
Loop system water outlet is located at the desulphurization denitration liquid ullage of upper warehouse bottom.
The decontamination plate being obliquely installed is equipped with the bottom of lower warehouse, the lowermost end for decontaminating plate goes out for denitration oxidation cycle system
Mouth of a river end.
Demister shower washing device, demister cleaning spray dress are equipped with upper storehouse body above and below demister
Put and be connected by pipeline with desulphurization denitration circulatory system water inlet.
Demister shower washing device clears washing and spraying head including some, and cleaning spray head is followed by pipeline and desulphurization denitration
Loop system water inlet is connected.
The tower body is carbon steel tower body, and erosion resistant coating is internally provided with carbon steel tower body.
The denitration liquid spray equipment includes some row's denitration liquid spray heads, and denitration liquid spray head passes through pipeline and denitration oxygen
Change circulatory system water inlet to be connected.
Desulphurization denitration liquid spray equipment gets rid of sulphur denitration liquid spray head including some, and desulphurization denitration liquid spray head passes through pipeline
It is connected with desulphurization denitration circulatory system water inlet.
The present invention is using the above scheme, reasonable in design, realizes the integrated treatment of denitrating flue gas desulfurization and dedusting, invests
Small, floor space is small, and removal efficiency is high, good purification.
Brief description of the drawings：
Fig. 1 is the structure diagram of the flue gas desulfurization denitration dust-removing integrated equipment of the present invention.
In figure, 1, partition plate, 2, upper warehouse, 3, lower warehouse, 4, denitration oxidation cycle system water outlet, 5, denitration liquid spray
Head, 6, denitration oxidation cycle system water inlet, 7, gas inlet, 8, desulphurization denitration circulatory system water outlet, 9, desulphurization denitration liquid
Spray head, 10, desulphurization denitration circulatory system water inlet, 11, demister, 12, exhanst gas outlet, 13, bubbling pipe, 14, decontamination plate,
15th, spray head is cleaned.
Embodiment：
In order to clarify the technical characteristics of the invention, below by embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
As shown in Figure 1, a kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln, including tower body, in tower
A horizontally disposed partition plate 1 is equipped with vivo, tower body is divided into mutually independent upper warehouse 2 and lower warehouse 3 by partition plate 1, in lower warehouse 3
Lower part side be equipped with the denitration oxidation cycle system water outlet 4 that is connected inside lower warehouse 3, denitration oxidation cycle system goes out
The mouth of a river 4 is connected by pipeline with denitration liquid precipitate circulatory pool, and the top in lower warehouse 3 is equipped with denitration liquid spray equipment, denitration
Liquid spray equipment is connected by pipeline with denitration oxidation cycle system water inlet 6, and denitration oxidation cycle system water inlet 6 is by setting
The pipeline for having water pump is connected with denitration liquid precipitate circulatory pool, denitration liquid spray equipment and denitration oxidation cycle system water outlet it
Between 3 side of lower warehouse be equipped with gas inlet 7, be equipped with desulphurization denitration circulatory system water outlet 8 in the lower part side of upper warehouse 3,
Desulphurization denitration circulatory system water outlet 8 is connected by pipeline with desulphurization denitration liquid precipitate circulatory pool, and the middle part in upper warehouse 2 is set
There is desulphurization denitration liquid spray equipment, desulphurization denitration liquid spray equipment passes through pipeline and 10 phase of desulphurization denitration circulatory system water inlet
Even, desulphurization denitration circulatory system water inlet 10 is connected by the pipeline equipped with water pump with desulphurization denitration liquid precipitate circulatory pool, upper
The top of warehouse 2 is equipped with demister 11, and exhanst gas outlet 12 is equipped with the top of upper warehouse 2, if the bottom in upper warehouse 2 is equipped with
The bubbling pipe 13 of dry inverted U, the lower part air inlet of bubbling pipe 13 are connected with the inside of lower warehouse 3, the top of bubbling pipe 13
Gas outlet is stretched into the desulphurization denitration liquid of 2 bottom of warehouse, and desulphurization denitration circulatory system water outlet 8 is located at upper 2 bottom of warehouse
Desulphurization denitration liquid ullage.
The decontamination plate 14 being obliquely installed is equipped with the bottom of lower warehouse 3, the lowermost end of decontamination plate 14 is denitration oxidation cycle
4 end of system water outlet.The decontamination plate 14 being obliquely installed facilitates sludge to be flowed out from denitration oxidation cycle system water outlet.
Demister shower washing device, demister cleaning spray are equipped with the upper warehouse 3 above and below demister 11
Shower device is connected by pipeline with desulphurization denitration circulatory system water inlet 10.Demister shower washing device cleans demister 11,
Purification of acidic gas at the same time.
Demister shower washing device clears washing and spraying first 15 including some, and cleaning spray head 15 is taken off by pipeline and desulfurization
Nitre circulatory system water inlet 10 is connected.
The tower body is carbon steel tower body, and erosion resistant coating is internally provided with carbon steel tower body.
The denitration liquid spray equipment includes some row's denitration liquid spray heads 5, and denitration liquid spray head 5 passes through pipeline and denitration
Oxidation cycle system water inlet 6 is connected.
Desulphurization denitration liquid spray equipment gets rid of sulphur denitration liquid spray head 9 including some, and desulphurization denitration liquid spray head 9 passes through pipe
Road is connected with desulphurization denitration circulatory system water inlet 10.
Burning coal for ceramic flue gas enters the lower warehouse 3 of tower body by gas inlet 7, and denitration liquid spray equipment sprays denitration liquid,
Denitration liquid is reacted with the NO in flue gas, and when denitration liquid uses hydrogen peroxide, the NO in flue gas is soluble in by hydrogen peroxide oxidation, generation
The nitrogen dioxide of water, while the dust in flue gas is also captured in water by spray, the denitration dust collecting processing of flue gas is realized, due under
Warehouse 3 is equipped with inclined decontamination plate 14, and sludge can prolong decontamination plate 14 and slip down near denitration oxidation cycle system water outlet 4, pass through
Water outlet 4 is discharged into denitration liquid precipitate circulatory pool, and the denitration liquid after precipitation continues spray and uses.Sprayed by lower 3 denitration liquid of warehouse
Flue gas gone upward to by the air inlet of bubbling pipe 13 in the desulphurization denitration liquid of upper 2 bottom of warehouse, heave a large amount of bubbles, make flue gas
Middle sulfur dioxide and nitrogen dioxide come into full contact with generation chemical reaction so as to be absorbed with desulphurization denitration liquid, when desulphurization denitration liquid is
During sodium hydroxide solution, sulfur dioxide and nitrogen dioxide generation sodium sulfite and sodium nitrate in flue gas are preliminary through bubbling technique
Flue gas after absorption processing carries out double absorption through desulphurization denitration liquid spray equipment spray desulphurization denitration liquid, when upper 2 bottom of warehouse
Desulphurization denitration liquid liquid level when exceeding desulphurization denitration circulatory system water outlet 8, the desulphurization denitration liquid of upper warehouse 2 is back to desulfurization and takes off
Nitre liquid precipitate circulatory pool, after precipitation, continues spray and uses.The flue gas of rising passes through demister 11, removes the water mist in flue gas
Content, demister shower washing device spray desulphurization denitration liquid, cleans demister, while purification of acidic gas, through above flow
Clean gas after processing discharges air through exhanst gas outlet 12.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (5)
- A kind of 1. flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln, it is characterised in that：Including tower body, in tower body A horizontally disposed partition plate is inside equipped with, tower body is divided into mutually independent upper warehouse and lower warehouse by partition plate, in the lower part of lower warehouse Side is equipped with the denitration oxidation cycle system water outlet with being connected inside lower warehouse, and denitration oxidation cycle system water outlet passes through Pipeline is connected with denitration liquid precipitate circulatory pool, and the top in lower warehouse is equipped with denitration liquid spray equipment, denitration liquid spray equipment It is connected by pipeline with denitration oxidation cycle system water inlet, denitration oxidation cycle system water inlet passes through the pipeline equipped with water pump It is connected with denitration liquid precipitate circulatory pool, the lower warehouse one between denitration liquid spray equipment and denitration oxidation cycle system water outlet Side is equipped with gas inlet, and desulphurization denitration circulatory system water outlet, the desulphurization denitration circulatory system are equipped with the lower part side of upper warehouse Water outlet is connected by pipeline with desulphurization denitration liquid precipitate circulatory pool, and the middle part in upper storehouse body is equipped with desulphurization denitration liquid spray dress Put, desulphurization denitration liquid spray equipment is connected by pipeline with desulphurization denitration circulatory system water inlet, the desulphurization denitration circulatory system into The mouth of a river is connected by the pipeline equipped with water pump with desulphurization denitration liquid precipitate circulatory pool, and demister is equipped with the top of upper warehouse, Demister shower washing device is equipped with upper storehouse body above and below demister, demister shower washing device passes through pipeline It is connected with desulphurization denitration circulatory system water inlet, is equipped with exhanst gas outlet at the top of upper warehouse, the bottom in upper storehouse body is equipped with The bubbling pipe of several inverted Us, the lower part air inlet of bubbling pipe are connected with the inside of lower warehouse, the top gas outlet of bubbling pipe Stretch into the desulphurization denitration liquid of warehouse bottom, desulphurization denitration circulatory system water outlet is located at the desulphurization denitration liquid of upper warehouse bottom Ullage；The decontamination plate being obliquely installed is equipped with the bottom of lower warehouse, the lowermost end for decontaminating plate is denitration oxidation cycle system Water outlet end.
- 2. the flue gas desulfurization denitration dust-removing integrated equipment of a kind of coal-fired ceramic kiln according to claim 1, its feature It is：Demister shower washing device clears washing and spraying head including some, and cleaning spray head passes through pipeline and desulphurization denitration circulates System water inlet is connected.
- 3. the flue gas desulfurization denitration dust-removing integrated equipment of a kind of coal-fired ceramic kiln according to claim 1, its feature It is：The tower body is carbon steel tower body, and erosion resistant coating is internally provided with carbon steel tower body.
- 4. the flue gas desulfurization denitration dust-removing integrated equipment of a kind of coal-fired ceramic kiln according to claim 1, its feature It is：The denitration liquid spray equipment includes some row's denitration liquid spray heads, and denitration liquid spray head is aoxidized by pipeline and denitration Circulatory system water inlet is connected.
- 5. the flue gas desulfurization denitration dust-removing integrated equipment of a kind of coal-fired ceramic kiln according to claim 1, its feature It is：Desulphurization denitration liquid spray equipment include it is some get rid of sulphur denitration liquid spray head, desulphurization denitration liquid spray head by pipeline with Desulphurization denitration circulatory system water inlet is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610286348.0A CN105727712B (en) | 2016-04-29 | 2016-04-29 | A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610286348.0A CN105727712B (en) | 2016-04-29 | 2016-04-29 | A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln |
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| CN105727712A CN105727712A (en) | 2016-07-06 |
| CN105727712B true CN105727712B (en) | 2018-05-08 |
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| CN201610286348.0A Expired - Fee Related CN105727712B (en) | 2016-04-29 | 2016-04-29 | A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106422698A (en) * | 2016-08-24 | 2017-02-22 | 江苏华晖环保科技有限公司 | Improved physiochemical and biochemical integrated desulfurization and denitrification equipment |
| CN106377987A (en) * | 2016-08-31 | 2017-02-08 | 上海甘澍环境科技有限公司 | Flue gas wet-process denitration device and flue gas wet-process denitration method |
| CN110614016A (en) * | 2019-09-25 | 2019-12-27 | 安徽国能亿盛环保科技有限公司 | Desulfurization and denitrification tower capable of preventing waste gas from flowing back |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5998717A (en) * | 1982-11-30 | 1984-06-07 | Project Meeking Tokyo:Kk | Deodorizing method and apparatus utilizing bacteria |
| JPH08108042A (en) * | 1994-10-14 | 1996-04-30 | Tatsuyasu Nishimura | Desulfurization and denitrification of flue gas,method and device for removal of carbon dioxide and catalyst and absorbent used therein |
| CN100496676C (en) * | 2007-04-30 | 2009-06-10 | 武汉凯迪电力环保有限公司 | Wet ammonia flue gas cleaning technology simultaneously removing various pollutant and system thereof |
| CN101708420A (en) * | 2009-11-24 | 2010-05-19 | 中冶长天国际工程有限责任公司 | Treatment technique for pollutants in sinter fume and spraying and absorbing tower thereof |
| CN101745305B (en) * | 2010-01-24 | 2013-03-20 | 华北电力大学（保定） | Method for removing various gaseous pollutants from smoke gas |
| CN105013312A (en) * | 2015-07-27 | 2015-11-04 | 航天环境工程有限公司 | Desulfurization and denitration integration absorbing device and application |
| CN205127719U (en) * | 2015-11-17 | 2016-04-06 | 山东正瀚环保设备有限公司 | Desulfurizing tower |
| CN205700082U (en) * | 2016-04-29 | 2016-11-23 | 济南乾坤环保设备有限公司 | A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln |
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