CN203829902U - Pyrolysis denitration system device capable of achieving white smoke concentration less than 50 milligrams - Google Patents
Pyrolysis denitration system device capable of achieving white smoke concentration less than 50 milligrams Download PDFInfo
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- CN203829902U CN203829902U CN201420136957.4U CN201420136957U CN203829902U CN 203829902 U CN203829902 U CN 203829902U CN 201420136957 U CN201420136957 U CN 201420136957U CN 203829902 U CN203829902 U CN 203829902U
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- denitration
- denitrification apparatus
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- flue gas
- white smoke
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Abstract
The utility model relates to a pyrolysis denitration system device capable of achieving a white smoke concentration less than 50 mm. the pyrolysis denitration system comprises a smoke inlet pipe, a first-stage denitration device, a second-stage denitration device and a dust removal device. One end of the smoke inlet pipe is connected with the inlet of the first-stage denitration device, the outlet of the first-stage denitration device is connected with the inlet of the second-stage denitration device, the outlet of the second-stage denitration device is connected with the dust removal device, the outlet of the first-stage denitration device is provided with an intermediate product recovery device, and the second-stage denitration device is a multi-elbow denitration pipe. The pyrolysis denitration system device capable of achieving the white smoke concentration less than 50 mm adopts a two-step denitration method, the denitration device in the second step is the multi-elbow denitration pipe, so that smoke can stay in the second-stage denitration device for a relatively long time to achieve full denitration; meanwhile, after the denitration process is completed, the dust removal device can eliminate dust in the smoke and achieve the white smoke concentration less than 50 milligrams.
Description
Technical field
The utility model relates to a kind of denitrating system equipment, and while being specifically related to a kind of Pintsch process, white smoke density is less than the denitrating system equipment of 50 milligrams.
Background technology
Owing to conventionally containing a large amount of nitrogen oxide NOx in flue gas as NO, if these nitrogen oxide are directly discharged in atmosphere, can cause the acid rain that corrosivity is very strong, therefore flue gas must be processed through denitrogenation (being denitration) before discharge, in combustion product gases, remove the process of nitrogen oxide, antipollution importance, has been carried out shrilly as worldwide problem.Flue gas is one of main emission of steam power plant, the generation of burning in burner (being boiler) by combustible.
At present, use the gas denitrifying technology of comparative maturity to mainly contain two kinds: SCR (SCR) technique and SNCR denitration (SNCR) technique.The chemical principle of SCR and SNCR denitrating technique is all the same, be all that denitrfying agent (urea or ammonia) is contacted with flue gas, make denitrfying agent and the NOx in flue gas carry out selective reduction and react generation nitrogen (N2) and steam (H2O).SNCR technique is generally that selective reduction reaction is carried out in combustion zone (800-1250 DEG C) in the burner hearth of boiler.SCR technique is that beds is set in flue, at 280-420 DEG C of temperature, under the condition existing, carries out catalytic selectivity reduction reaction at catalyst.SNCR and SCR have certain limitation, i.e. denitration is incomplete, and meanwhile, the white smoke density in flue gas is too high, and such flue gas is discharged in air or can causes air pollution.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of denitrating system equipment, makes white smoke density in the time of Pintsch process be less than 50 milligrams.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: when a kind of Pintsch process, white smoke density is less than the denitrating system equipment of 50 milligrams, comprise smoke inlet pipeline, one-level denitrification apparatus, secondary denitrification apparatus, dust arrester, one end of described smoke inlet pipeline is connected with the entrance of described one-level denitrification apparatus, the outlet of described one-level denitrification apparatus is connected with the entrance of described secondary denitrification apparatus, the exit of described secondary denitrification apparatus is connected with described dust arrester, the exit of described one-level denitrification apparatus is provided with intermediate product retracting device, described one-level denitrification apparatus comprises flue gas oxidation reactor, solubilizing reaction case, described secondary denitrification apparatus is many bends denitration pipe, be distributed with denitrating catalyst and denitration reaction agent in the inside of described many bends denitration pipe.
The beneficial effects of the utility model are: the utility model adopts two step denitration methods, and wherein the denitrification apparatus of second step adopts many bends denitration pipeline, make flue gas can in secondary denitrification apparatus, stop longer time, desulfurization more fully; Meanwhile, after desulfurization is finished dealing with, there is dust arrester, can remove the dust in flue gas, make white smoke density be less than 50 milligrams.
On the basis of technique scheme, the utility model can also do following improvement.
Further, in described flue gas oxidation reactor, be provided with ozone gas.
Further, in described solubilizing reaction case, water is housed.
Adopt the beneficial effect of above-mentioned further scheme to be: the nitric oxide in ozone oxidation flue gas, make it generate nitrogen dioxide, then react with water and generate nitric acid, collected by intermediate product collection box, reach the object of denitration.
Further, in described flue gas oxidation reactor, be provided with chlorine dioxide.
Further, in described solubilizing reaction case, sodium sulfite aqueous solution is housed.
Adopt the beneficial effect of above-mentioned further scheme to be: the nitric oxide of chlorine dioxide oxidation flue gas makes it generate nitrogen dioxide, is then reduced by natrium nitrosum, generates nitrogen, is collected by intermediate product collection box, realizes the object of denitration.
Further, the port of export of many bends denitration pipe of described secondary denitrification apparatus is provided with flue gas recirculation recovery channel and exhanst gas outlet pipeline, one end of described flue gas recirculation recovery channel is connected with the arrival end of secondary denitrification apparatus, and one end of described exhanst gas outlet pipeline is connected with described dust arrester.
Adopt the beneficial effect of above-mentioned further scheme to be: to adopt flue gas recirculation recovery tube, can further carry out denitration processing to flue gas, make denitration more abundant.
Further, described flue gas recirculation recovery channel is or/and exhanst gas outlet pipeline is provided with valve.
Adopt the beneficial effect of above-mentioned further scheme to be: by valve is set, to control easily the process of secondary denitrification apparatus processing.
Brief description of the drawings
Fig. 1 while being a kind of Pintsch process of the utility model white smoke density be less than the structured flowchart of the denitrating system equipment of 50 milligrams;
Fig. 2 while being a kind of Pintsch process of the utility model white smoke density be less than the secondary denitrification apparatus structural representation of the denitrating system equipment of 50 milligrams.
In accompanying drawing, the list of parts of each label representative is as follows:
1, smoke inlet pipeline, 2, one-level denitrification apparatus, 2.1, flue gas oxidation reactor, 2.2, solubilizing reaction case, 3, intermediate product retracting device, 4, secondary denitrification apparatus, 5, dust arrester, 6, exhanst gas outlet pipeline, 6.1, outlet conduit valve, 7, flue gas recirculation recovery channel, 7.1, circulating line valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, when a kind of Pintsch process, white smoke density is less than the denitrating system equipment of 50 milligrams, comprise smoke inlet pipeline 1, one-level denitrification apparatus 2, secondary denitrification apparatus 4, dust arrester 5, described one-level denitrification apparatus 2 comprises flue gas oxidation reactor 2.1, solubilizing reaction case 2.2, one end of described smoke inlet pipeline 1 is connected with the entrance of the flue gas oxidation reactor 2.1 of described one-level denitrification apparatus 2, the outlet of described flue gas oxidation reactor 2.1 is connected with the entrance of described solubilizing reaction case 2.2, the outlet of the solubilizing reaction case 2.2 of described one-level denitrification apparatus 2 is connected with the entrance of described secondary denitrification apparatus 4, exhanst gas outlet pipeline 6 places of described secondary denitrification apparatus 4 are also connected with described dust arrester 5, the exit of described one-level denitrification apparatus 2 is provided with intermediate product retracting device 3, described secondary denitrification apparatus 4 is many bends denitration pipe, its structural representation as shown in Figure 2, be distributed with denitrating catalyst and denitration reaction agent in the inside of described many bends denitration pipe.The port of export of many bends denitration pipe of described secondary denitrification apparatus 4 is provided with flue gas recirculation recovery channel 7 and exhanst gas outlet pipeline 6, one end of described flue gas recirculation recovery channel 7 is connected with the arrival end of secondary denitrification apparatus 2, and one end of described exhanst gas outlet pipeline 6 is connected with described dust arrester 5.Adopt flue gas recirculation recovery tube, can further carry out denitration processing to flue gas, make denitration more abundant.Described flue gas recirculation recovery channel 7 is provided with circulating line valve 7.1, or/and exhanst gas outlet pipeline 6 is provided with outlet conduit valve 6.1.By valve is set, control easily the process of secondary denitrification apparatus processing.In described flue gas oxidation reactor 2.1, be provided with ozone gas or chlorine dioxide; In the time being provided with ozone gas in flue gas oxidation reactor 2.1, in described solubilizing reaction case 2.2, water is housed; In the time being provided with chlorine dioxide in flue gas oxidation reactor 2.1, in described solubilizing reaction case 2.2, sodium sulfite aqueous solution is housed; Nitric oxide in ozone oxidation flue gas, makes it generate nitrogen dioxide, then reacts with water and generates nitric acid, is collected by intermediate product collection box 3, reaches the object of denitration; Equally, the nitric oxide of chlorine dioxide oxidation flue gas makes it generate nitrogen dioxide, is then reduced by natrium nitrosum, generates nitrogen, is collected by intermediate product collection box 3, also can realize the object of denitration.
The utility model adopts two step denitration methods, and wherein the denitrification apparatus of second step adopts many bends denitration pipeline, makes flue gas can in secondary denitrification apparatus 2, stop longer time, desulfurization more fully; Meanwhile, after desulfurization is finished dealing with, there is dust arrester 5, can remove the dust in flue gas, make white smoke density be less than 50 milligrams.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. white smoke density is less than the denitrating system equipment of 50 milligrams when a Pintsch process, it is characterized in that: comprise smoke inlet pipeline, one-level denitrification apparatus, secondary denitrification apparatus, dust arrester, one end of described smoke inlet pipeline is connected with the entrance of described one-level denitrification apparatus, the outlet of described one-level denitrification apparatus is connected with the entrance of described secondary denitrification apparatus, the exit of described secondary denitrification apparatus is connected with described dust arrester, the exit of described one-level denitrification apparatus is provided with intermediate product retracting device, described one-level denitrification apparatus comprises flue gas oxidation reactor, solubilizing reaction case, described secondary denitrification apparatus is many bends denitration pipe, be distributed with denitrating catalyst and denitration reaction agent in the inside of described many bends denitration pipe.
2. white smoke density is less than the denitrating system equipment of 50 milligrams when a kind of Pintsch process according to claim 1, it is characterized in that: in described flue gas oxidation reactor, be provided with ozone gas.
3. white smoke density is less than the denitrating system equipment of 50 milligrams when a kind of Pintsch process according to claim 2, it is characterized in that: in described solubilizing reaction case, water is housed.
4. white smoke density is less than the denitrating system equipment of 50 milligrams when a kind of Pintsch process according to claim 1, it is characterized in that: in described flue gas oxidation reactor, be provided with chlorine dioxide.
5. white smoke density is less than the denitrating system equipment of 50 milligrams when a kind of Pintsch process according to claim 4, it is characterized in that: in described solubilizing reaction case, sodium sulfite aqueous solution is housed.
6. during according to a kind of Pintsch process described in claim 1 to 5 any one, white smoke density is less than the denitrating system equipment of 50 milligrams, it is characterized in that: the port of export of many bends denitration pipe of described secondary denitrification apparatus is provided with flue gas recirculation recovery channel and exhanst gas outlet pipeline, one end of described flue gas recirculation recovery channel is connected with the arrival end of secondary denitrification apparatus, and one end of described exhanst gas outlet pipeline is connected with described dust arrester.
7. white smoke density is less than the denitrating system equipment of 50 milligrams when a kind of Pintsch process according to claim 6, it is characterized in that: described flue gas recirculation recovery channel is or/and exhanst gas outlet pipeline is provided with valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136957.4U CN203829902U (en) | 2014-03-25 | 2014-03-25 | Pyrolysis denitration system device capable of achieving white smoke concentration less than 50 milligrams |
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| CN201420136957.4U CN203829902U (en) | 2014-03-25 | 2014-03-25 | Pyrolysis denitration system device capable of achieving white smoke concentration less than 50 milligrams |
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| CN203829902U true CN203829902U (en) | 2014-09-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195000A (en) * | 2015-10-09 | 2015-12-30 | 广州研华环境科技有限公司 | Flue gas cleaning device and method |
| CN108636098A (en) * | 2016-12-31 | 2018-10-12 | 上海康恒环境股份有限公司 | A kind of the minimum discharge purifier and its method of burning city domestic garbage flue gas |
-
2014
- 2014-03-25 CN CN201420136957.4U patent/CN203829902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195000A (en) * | 2015-10-09 | 2015-12-30 | 广州研华环境科技有限公司 | Flue gas cleaning device and method |
| CN108636098A (en) * | 2016-12-31 | 2018-10-12 | 上海康恒环境股份有限公司 | A kind of the minimum discharge purifier and its method of burning city domestic garbage flue gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUBEI JINBAOMA ENVIRONMENTAL PROTECTION TECHNOLOGY Free format text: FORMER OWNER: XIAO YEJUN Effective date: 20150706 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150706 Address after: 430000, Wuhan, East Lake hi tech Zone, Hubei, Hubei Road, Optics Valley headquarters, room 3-303 Patentee after: HUBEI JBM ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY CO., LTD. Address before: 430040, Shengli village 193, Changqing office, Dongxihu District, Hubei, Wuhan Patentee before: Xiao Yejun |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20210325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |