CN104474892A - Production method of denitrification powder - Google Patents
Production method of denitrification powder Download PDFInfo
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- CN104474892A CN104474892A CN201410741525.0A CN201410741525A CN104474892A CN 104474892 A CN104474892 A CN 104474892A CN 201410741525 A CN201410741525 A CN 201410741525A CN 104474892 A CN104474892 A CN 104474892A
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- Prior art keywords
- denitration powder
- powder
- denitrification
- solution
- denitration
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Abstract
The invention discloses a production method of denitrification powder, which uses one system device for two units and comprises the following steps: sending denitrification powder into a denitrification powder dissolution tank by a bucket room lifter, stirring in the dissolution tank to accelerate the dissolution of the denitrification powder, sending the dissolved and mixed denitrification powder into a denitrification powder solution storage tank, sending the solution into a denitrification powder solution hydrolysis chamber by a denitrification powder solution feed pump, and sending the saturated vapor into a hydrolyzer by a disk heater, wherein the saturated vapor is not mixed with the denitrification powder solution and but flows back through the coil pipe to heat the denitrification powder solution, and the ammoniated flow from hydrolysis reaction is diluted by air and enters an ammonia gas-flue gas mixing system.
Description
Technical field
The invention belongs to chemical technology field, relate to a kind of production method of denitration powder.
Background technology
In prior art, for fuel NO
2the main three kinds of methods of control: 1. fuel denitrogenation 2. improves combustion system and production technology, i.e. denitrogenation 3. denitrating flue gas in burning, the i.e. control technology of the rear NOX of burning, first two method reduces the growing amount of NOX in combustion process, and the third method is then to the NO in flue gas after burning
2process.Exist defect mainly: this material must be dissolving after can use; Less than eight degrees Celsius automatic crystallizations; Must acid and alkali resistance.
Summary of the invention
The object of the invention is to the defect overcoming the existence of above-mentioned technology, provide a kind of production method of denitration powder, the discharge solving noxious material in flue gas, to the pollution of air, is mainly used in the denitration of flue gas in power plant, decomposes toxic gas.Its
Concrete technical scheme is:
A kind of production method of denitration powder, comprise the following steps: by two public set of system equipment of unit, denitration powder dissolving tank is entered by small room elevator, dissolving tank agitator, denitration powder is made to accelerate to dissolve, denitration powder dissolves mixing delivers to denitration powder solution reservoir, solution is delivered to denitration powder solution hydrolysis room by denitration powder solution supply pump, saturated vapor enters hydrolyzer by disc type heater, saturated vapor does not mix with denitration powder solution, by coil pipe reflux heating denitration powder solution, hydrolysis out containing ammonia stream by Dilution air, after this ammonia-flue gas hybrid system is entered.
Preferably, the denitrfying agent preparation used and supply system comprise: denitration powder storage tank, small room elevator, denitration powder dissolving tank, agitator, coil heater, denitration powder mixing pump, dissolving workshop, sump pump, drainage pump, dissolving tank, ventilating fan, denitration powder solution supply pump, hydrolysis reactor etc.
Compared with prior art, beneficial effect of the present invention is: in denitration powder equipment of the present invention and supply system, the supply of ammonia can meet the requirement of boiler different load, convenient, flexible, reliable, the equipment such as denitrfying agent deposit, supply system associated conduit, valve, instrument, pump, it must meet anticorrosive requirement, adopts anti-corrosive properties outdoor electric appliance device, detection alarm system is housed behind ammonia leak area, and denitrfying agent preparation and the rear system of supply should be furnished with good control system.
Wy-Tx1 denitration powder adopts catalysts selective reduction gas denitrifying technology, and main chemical reactions is as follows:
4NH
3+4NO+O
2----4N
2+6H
2O
4NH
3+2NO+O
2----3N
2+6H
2O。
Accompanying drawing explanation
Fig. 1 be denitrfying agent preparation and supply system schematic diagram in typical reactor;
Fig. 2 be denitrfying agent preparation and supply system schematic diagram in ideal reactor, in figure, A is that ammonia sprays into a little, and B is catalyst converter, and C is flue cross section.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with accompanying drawing and instantiation.
With reference to Fig. 1-Fig. 2, a kind of production method of denitration powder, comprise the following steps: by two public set of system equipment of unit, denitration powder dissolving tank is entered by small room elevator, dissolving tank agitator, denitration powder is made to accelerate to dissolve, denitration powder dissolves mixing delivers to denitration powder solution reservoir, solution is delivered to denitration powder solution hydrolysis room by denitration powder solution supply pump, saturated vapor enters hydrolyzer by disc type heater, saturated vapor does not mix with denitration powder solution, by coil pipe reflux heating denitration powder solution, hydrolysis out containing ammonia stream by Dilution air, after this ammonia-flue gas hybrid system is entered.
The denitrfying agent preparation used and supply system comprise: denitration powder storage tank, small room elevator, denitration powder dissolving tank, agitator, coil heater, denitration powder mixing pump, dissolving workshop, sump pump, drainage pump, dissolving tank, ventilating fan, denitration powder solution supply pump, hydrolysis reactor etc.
The above, be only best mode for carrying out the invention, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses, and the simple change of the technical scheme that can obtain apparently or equivalence are replaced and all fallen within the scope of protection of the present invention.
Claims (2)
1. the production method of a denitration powder, it is characterized in that, comprise the following steps: by two public set of system equipment of unit, denitration powder dissolving tank is entered by small room elevator, dissolving tank agitator, denitration powder is made to accelerate to dissolve, denitration powder dissolves mixing delivers to denitration powder solution reservoir, solution is delivered to denitration powder solution hydrolysis room by denitration powder solution supply pump, saturated vapor enters hydrolyzer by disc type heater, saturated vapor does not mix with denitration powder solution, by coil pipe reflux heating denitration powder solution, hydrolysis out containing ammonia stream by Dilution air, after this ammonia-flue gas hybrid system is entered.
2. the production method of denitration powder according to claim 1, is characterized in that: the denitrfying agent preparation used and supply system comprise: denitration powder storage tank, small room elevator, denitration powder dissolving tank, agitator, coil heater, denitration powder mixing pump, dissolving workshop, sump pump, drainage pump, dissolving tank, ventilating fan, denitration powder solution supply pump, hydrolysis reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741525.0A CN104474892A (en) | 2014-12-09 | 2014-12-09 | Production method of denitrification powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741525.0A CN104474892A (en) | 2014-12-09 | 2014-12-09 | Production method of denitrification powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104474892A true CN104474892A (en) | 2015-04-01 |
Family
ID=52749577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410741525.0A Pending CN104474892A (en) | 2014-12-09 | 2014-12-09 | Production method of denitrification powder |
Country Status (1)
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| CN (1) | CN104474892A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5985224A (en) * | 1998-05-25 | 1999-11-16 | Siirtec-Nigi S.P.A. | Process for ammonia production through urea hydrolysis |
| US6077491A (en) * | 1997-03-21 | 2000-06-20 | Ec&C Technologies | Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal |
| US6511644B1 (en) * | 2000-08-28 | 2003-01-28 | The Chemithon Corporation | Method for removing contaminants in reactors |
| US20070212287A1 (en) * | 2003-11-05 | 2007-09-13 | Urea Casale S.A. | Method for the Treatment of Combustion Flue Gas |
| CN101125666A (en) * | 2007-08-24 | 2008-02-20 | 中电投远达环保工程有限公司 | Technique for preparing ammonia from urea by pyrolysis method |
| CN201458752U (en) * | 2009-06-24 | 2010-05-12 | 成都锐思环保技术有限责任公司 | Urea hydrolysis system for preparing reducing agent needed by flue gas denitrification |
| CN101928014A (en) * | 2010-08-13 | 2010-12-29 | 朱红路 | Process for producing ammonia from urea used for denitration of boiler smoke and system thereof |
| CN201971645U (en) * | 2011-02-16 | 2011-09-14 | 成都锐思环保工程有限公司 | Urea hydrolysis ammonia producing system |
| CN203513297U (en) * | 2013-11-26 | 2014-04-02 | 成都是钢环保工程有限公司 | Urea solution hydrolyzing and ammonia producing system |
| CN203582506U (en) * | 2013-11-22 | 2014-05-07 | 成都是钢环保工程有限公司 | Ammonia production system employing urea solution pyrolysis |
-
2014
- 2014-12-09 CN CN201410741525.0A patent/CN104474892A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6077491A (en) * | 1997-03-21 | 2000-06-20 | Ec&C Technologies | Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal |
| US5985224A (en) * | 1998-05-25 | 1999-11-16 | Siirtec-Nigi S.P.A. | Process for ammonia production through urea hydrolysis |
| US6511644B1 (en) * | 2000-08-28 | 2003-01-28 | The Chemithon Corporation | Method for removing contaminants in reactors |
| US20070212287A1 (en) * | 2003-11-05 | 2007-09-13 | Urea Casale S.A. | Method for the Treatment of Combustion Flue Gas |
| CN101125666A (en) * | 2007-08-24 | 2008-02-20 | 中电投远达环保工程有限公司 | Technique for preparing ammonia from urea by pyrolysis method |
| CN201458752U (en) * | 2009-06-24 | 2010-05-12 | 成都锐思环保技术有限责任公司 | Urea hydrolysis system for preparing reducing agent needed by flue gas denitrification |
| CN101928014A (en) * | 2010-08-13 | 2010-12-29 | 朱红路 | Process for producing ammonia from urea used for denitration of boiler smoke and system thereof |
| CN201971645U (en) * | 2011-02-16 | 2011-09-14 | 成都锐思环保工程有限公司 | Urea hydrolysis ammonia producing system |
| CN203582506U (en) * | 2013-11-22 | 2014-05-07 | 成都是钢环保工程有限公司 | Ammonia production system employing urea solution pyrolysis |
| CN203513297U (en) * | 2013-11-26 | 2014-04-02 | 成都是钢环保工程有限公司 | Urea solution hydrolyzing and ammonia producing system |
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Addressee: Zou Yingkui Document name: Decision of Rejection |
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Application publication date: 20150401 |
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