CN105561754A - Boiler denitration device - Google Patents
Boiler denitration device Download PDFInfo
- Publication number
- CN105561754A CN105561754A CN201610089293.4A CN201610089293A CN105561754A CN 105561754 A CN105561754 A CN 105561754A CN 201610089293 A CN201610089293 A CN 201610089293A CN 105561754 A CN105561754 A CN 105561754A
- Authority
- CN
- China
- Prior art keywords
- boiler
- gasification
- jet pipe
- injection
- denitration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
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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
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/20—Non-catalytic reduction devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a boiler denitration device. An injection system comprises an injection pipe, wherein the injection pipe is arranged in the boiler wall of a boiler and located at the lower portion of a conveying belt, and a blind plate is arranged at the end, close to the outside of the boiler wall, of the injection pipe. An ammonium water vaporization system comprises a gasification tank provided with an interlayer, wherein the gasification tank is connected with the boiler through a delivery pipe, the conveying belt connected with the outside is arranged in the middle of the boiler, multiple groups of gasification injection pipes are arranged at the upper portion of the boiler, baffles are arranged at the contact position between the gasification injection pipes and the outside of the boiler wall, sealing plates are arranged at the tail ends of the gasification injection pipes, the tail ends of the gasification injection pipes penetrate through the boiler to be arranged at the upper portion of the inside of a boiler cavity, the gasification injection pipes outside a boiler body are mutually connected by using flanges and are connected with the delivery pipe, and one side of the boiler is connected into the interlayer through a waste heat recovery device. The boiler denitration device is simple in structure, convenient to operate and capable of efficiently performing denitration and uniform injection, decreases ammonia gas escape, avoids the direct contact between ammonia water and a product and can reasonably utilize waste heat resources while improving the product quality.
Description
Technical field
The present invention relates to Denitration in Boiler technical field, specifically a kind of Denitration in Boiler device.
Background technology
In boiler combustion is produced, burning is regretted discharging a large amount of nitrogen oxide, the atmosphere pollution brought along with nitrogen oxide is more and more serious, therefore must implement and force denitration to avoid air to pollute further, just sustainable development strategies can be met, the denitrating technique of boiler has become the important component part of process industrial, SNCR denitration has multiple advantage, its denitration principle is with ammoniacal liquor, urea [CO (NH2) 2] etc. are as reducing agent, be ejected in boiler, in certain temperature range, the amino reductive such as ammoniacal liquor or urea optionally can be reduced to N2 and H2O the NOx in flue gas under the effect of catalyst-free, it is a kind of denitration mode of non-catalytic reduction.
Produce the boiler of ceramic when carrying out denitration process, injection ammoniacal liquor can be carried out respectively at the two parts up and down of storing conveyer belt in stove, but the ammoniacal liquor water droplet sprayed is direct and ceramic contact easily, the pottery touching ammoniacal liquor can react, cause color change, degradation other problems under product quality, ammonia water spray is in boiler, the heat in boiler also can be taken away when it flashes to ammonia, reduce the temperature in boiler, the ceramic in boiler is made not reach temperature required for it, have impact on ceramic quality, the system that the sprays into shower nozzle of ammoniacal liquor is shorter, cannot extend in furnace chamber and spray, therefore can only be high in the concentration of the surrounding ammoniacal liquor of boiler, and ammonia concn is low in the middle of furnace chamber, spray uneven, mid portion denitration effect can not be ensured completely, and the waste heat produced after burning in boiler can not reasonably use, cause the waste of resource.
Therefore, the deficiency and designing for overcoming above-mentioned technology aly can evenly be sprayed, Appropriate application boiler afterheat resource, avoid ammoniacal liquor directly to contact with product, improve a kind of Denitration in Boiler device of product quality, inventor's problem to be solved just.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of Denitration in Boiler device, its structure is simple, energy NO_x Reduction by Effective, evenly can spray, decrease ammonia and escape, avoid ammoniacal liquor directly to contact with product, also can reasonably utilize boiler afterheat resource while improving product quality, reduce production cost.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Denitration in Boiler device, it ammoniacal liquor vapo(u)rization system comprising boiler and be connected with boiler, spraying system, described spraying system comprises jet pipe, described jet pipe is arranged in the furnace wall of boiler, described jet pipe is positioned at conveyer belt bottom, one end on described jet pipe outside boiler is provided with blind plate, described ammoniacal liquor vapo(u)rization system comprises the gasification tank of sandwich, described gasification tank is connected with boiler by conveyance conduit, the conveyer belt be connected with the external world is provided with in the middle of described boiler, described upper boiler is provided with many group gasification jet pipes, described gasification jet pipe end is arranged on top in furnace chamber through boiler, described gasification jet pipe is connected with conveyance conduit, described boiler side is connected in interlayer by waste-heat recovery device.
Further, the external synapsis of described gasification jet pipe and boiler wall is provided with baffle plate, and described gasification jet pipe end is provided with shrouding.
The invention has the beneficial effects as follows:
1, structure of the present invention is simple, easy to operate, utilizes the ammoniacal liquor after evaporation to enter in furnace chamber by multi units tube road, ammonia can be made comparatively to be evenly distributed in furnace chamber, decreases ammonia and escapes, increase the contact area of denitration reaction, improve denitration effect.
2, the present invention is by passing into upper area in furnace chamber by the ammonia after evaporation, avoids too much ammoniacal liquor and directly contacts with ceramic, improve ceramic product quality.
3, the device of the present invention by being set to sandwich in ammoniacal liquor vapo(u)rization system, the waste heat produced after can making full use of boiler combustion, economize energy, reduces production cost.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention.
Fig. 2 is apparatus of the present invention connection diagrams.
Fig. 3 is local device front view of the present invention.
Description of reference numerals: 1-boiler; 2-ammoniacal liquor vapo(u)rization system; 3-spraying system; 4-conveyer belt; 5-jet pipe; 6-blind plate; 7-conveyance conduit; 8-gasifies jet pipe; 9-flange; 10-baffle plate; 11-shrouding; 12-interlayer; 13-waste-heat recovery device.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further, should be understood that these embodiments are only not used in for illustration of the present invention and limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values drop on application appended claims limited range equally.
Structure sectional view of the present invention see Fig. 1, apparatus of the present invention connection diagrams see Fig. 2, local device front view of the present invention see Fig. 3, a kind of Denitration in Boiler device of this structure, it ammoniacal liquor vapo(u)rization system 2 comprising boiler 1 and be connected with boiler, spraying system 3, spraying system 3 comprises jet pipe 5, jet pipe 5 is arranged in the furnace wall of boiler 1, jet pipe 5 is positioned at conveyer belt 4 bottom, one end on jet pipe 5 outside boiler 1 wall is provided with blind plate 6, ammoniacal liquor vapo(u)rization system 2 comprises the gasification tank of sandwich 12, gasification tank is connected with boiler 1 by conveyance conduit 7, the conveyer belt 4 be connected with the external world is provided with in the middle of boiler 1, boiler 1 top is provided with many group gasification jet pipes 8, gasification jet pipe 8 is provided with baffle plate 10 with the external synapsis of boiler 1 wall, gasification jet pipe 8 end is provided with shrouding 11, gasification jet pipe 8 end is arranged on top in furnace chamber through boiler 1, external gasification jet pipe 8 flange 9 of boiler 1 is interconnected, gasification jet pipe 8 is connected with conveyance conduit 7, boiler 1 side is connected in interlayer 2 by waste-heat recovery device 13.
Structure of the present invention is simple, easy to operate, by being changed into above conveyer belt by traditional two spraying systems, ammoniacal liquor vapo(u)rization system 2 is set, and spraying system 3 below conveyer belt 4 is constant, ammoniacal liquor is flashed to ammonia by ammoniacal liquor vapo(u)rization system 2, ammonia is by conveyance conduit 7, be passed in the furnace chamber of boiler 1 through gasification jet pipe 8 again, avoid ammoniacal liquor be directly injected to touch ceramic in furnace chamber and make pottery cancel problem, because ammonia can not react with ceramic, therefore improve the quality of ceramic, and the setting of many group gasification jet pipes 8, ammonia is not only made to scatter evenly, and also increase the denitration reaction area of ammonia each position in furnace chamber, further increase denitration reaction efficiency, by ammoniacal liquor vapo(u)rization system 2 being set to the device of sandwich 12, waste-heat recovery device 13 is utilized to be passed in interlayer 12 by the residual heat collection in boiler 1, gasification tank in ammoniacal liquor vapo(u)rization system 2 is because the heat effect in interlayer 12 is by the ammoniacal liquor evaporation in tank, lead in boiler 1 chamber by conveyance conduit 7 again, so not only can make full use of the waste heat produced after boiler 1 burns, and economize energy, reduce production cost.
Claims (2)
1. a Denitration in Boiler device, it is characterized in that: it ammoniacal liquor vapo(u)rization system comprising boiler and be connected with boiler, spraying system, described spraying system comprises jet pipe, described jet pipe is arranged in the furnace wall of boiler, described jet pipe is positioned at conveyer belt bottom, one end on described jet pipe outside boiler is provided with blind plate, described ammoniacal liquor vapo(u)rization system comprises the gasification tank of sandwich, described gasification tank is connected with boiler by conveyance conduit, the conveyer belt be connected with the external world is provided with in the middle of described boiler, described upper boiler is provided with many group gasification jet pipes, described gasification jet pipe end is arranged on top in furnace chamber through boiler, described gasification jet pipe is connected with conveyance conduit, described boiler side is connected in interlayer by waste-heat recovery device.
2. a kind of Denitration in Boiler device according to claim 1, is characterized in that: the external synapsis of described gasification jet pipe and boiler wall is provided with baffle plate, and described gasification jet pipe end is provided with shrouding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089293.4A CN105561754A (en) | 2016-02-18 | 2016-02-18 | Boiler denitration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089293.4A CN105561754A (en) | 2016-02-18 | 2016-02-18 | Boiler denitration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105561754A true CN105561754A (en) | 2016-05-11 |
Family
ID=55872716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610089293.4A Pending CN105561754A (en) | 2016-02-18 | 2016-02-18 | Boiler denitration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105561754A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044886A1 (en) * | 2000-10-16 | 2002-04-18 | William Larco | Vaporization system having blower positioned in reduced temperature zone |
| CN201885590U (en) * | 2010-12-15 | 2011-06-29 | 湖南思为能源环保有限公司 | Aluminum oxide low-temperature flue gas waste heat heating and evaporation stock solution device |
| CN202751952U (en) * | 2012-07-25 | 2013-02-27 | 北京中航天业科技有限公司 | Mixed catalytic denitration device |
| CN103170229A (en) * | 2013-03-01 | 2013-06-26 | 大连易世达新能源发展股份有限公司 | Desulfurization and denitration integrated system of industrial kiln stove |
| CN205340528U (en) * | 2016-02-18 | 2016-06-29 | 山东巨亚环保科技股份有限公司 | Boiler denitrification facility |
-
2016
- 2016-02-18 CN CN201610089293.4A patent/CN105561754A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044886A1 (en) * | 2000-10-16 | 2002-04-18 | William Larco | Vaporization system having blower positioned in reduced temperature zone |
| CN201885590U (en) * | 2010-12-15 | 2011-06-29 | 湖南思为能源环保有限公司 | Aluminum oxide low-temperature flue gas waste heat heating and evaporation stock solution device |
| CN202751952U (en) * | 2012-07-25 | 2013-02-27 | 北京中航天业科技有限公司 | Mixed catalytic denitration device |
| CN103170229A (en) * | 2013-03-01 | 2013-06-26 | 大连易世达新能源发展股份有限公司 | Desulfurization and denitration integrated system of industrial kiln stove |
| CN205340528U (en) * | 2016-02-18 | 2016-06-29 | 山东巨亚环保科技股份有限公司 | Boiler denitrification facility |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |