CN202315706U - Ash removing device for regenerating flue gas denitrifying catalyst - Google Patents
Ash removing device for regenerating flue gas denitrifying catalyst Download PDFInfo
- Publication number
- CN202315706U CN202315706U CN2011204272204U CN201120427220U CN202315706U CN 202315706 U CN202315706 U CN 202315706U CN 2011204272204 U CN2011204272204 U CN 2011204272204U CN 201120427220 U CN201120427220 U CN 201120427220U CN 202315706 U CN202315706 U CN 202315706U
- Authority
- CN
- China
- Prior art keywords
- catalyst
- brush holder
- holder support
- flue gas
- removing device
- 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.)
- Expired - Lifetime
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 36
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 239000003546 flue gas Substances 0.000 title claims abstract description 9
- 230000001172 regenerating effect Effects 0.000 title abstract 4
- 239000010881 fly ash Substances 0.000 claims abstract description 6
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000002956 ash Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
An ash removing device for regenerating a flue gas denitrifying catalyst belongs to the field of flue gas denitrifying catalysts. The ash removing device for regenerating the flue gas denitrifying catalyst consists of a motor (1), a rotating shaft (2), a gear set (3) and brush rods (4), wherein the brush rod in the center is driven to rotate by the motor; the brush rods are driven to rotate through engagement of gears; the brush rods stretch into clearances of the honeycomb catalyst, so that tiny fly ash and particles, which are difficult to clear, inside the clearances of the catalyst can be effectively removed, the damage to pore walls inside the catalyst can be avoided, and the service life of the catalyst is prolonged; and the ash removing device for regenerating the flue gas denitrifying catalyst is economical and practical.
Description
Technical field
The utility model relates to the denitrating flue gas field, particularly the regeneration ash removal method of catalyst in SCR (SCR) denitrating system.
Background technology
Along with " thermal power plant's atmosphere pollutants emission standards " promulgation (GB13223-2011), China is strict more to the emission request of the nitrogen oxide (N0x) that fire coal produces.For gas denitrifying technology; That application is more at present is selective catalytic reduction (SCR), and SCR technology denitration efficiency is high, can reach more than 85%; Wherein catalyst is the capital equipment of SCR system, the denitration efficiency that its one-tenth is grouped into, structure, life-span and relevant parameter directly influence the SCR system.The initial investment cost of catalyst accounts for about 40% of whole denitration project, general SCR denitrating system operation about 3 years, and catalyst must be changed because its activity reduces.Can make activity of such catalysts return to more than 90% of original activity through renovation process, and cost is merely the 40-50% of raw catelyst.Therefore, it is significant to applying of SCR technology to carry out the regeneration of catalyst.
Can use the mode of flushing for the simple deashing of the denitrating catalyst that is stopped up by flying dust; But simple sometimes flushing is not effective deashing means; Its main cause is that ash particle is difficult to from catalyst channels, clean out; Because the delay effect on solid-liquid surface and tightly pasting, and a part of activity of such catalysts material also can be dissolved in the water, and causes the loss of part catalyst at the fine particle of hole mouth.
Summary of the invention
The purpose of the utility model is exactly in order to solve the deficiency that prior art exists, a kind of effective denitrating catalyst regeneration deashing device to be provided.
The object of the invention is realized through following technical scheme:
A kind of catalyst for denitrating flue gas regeneration deashing device comprises motor (1), rotating shaft (2), gear train (3), brush holder support (4).The brush holder support at center rotates under the drive of motor, and through the gears engaged driven rotary, the space of brush holder support being stretched into honeycombed catalyst is inner between the brush holder support, effectively the clean catalysis agent hole inside tiny fly ash granule that is difficult to remove.Wherein brush holder support length is 900mm-1600mm; The brush holder support diameter is 3mm-5mm, and the centre-to-centre spacing between the brush holder support is 7mm-9mm, and the quantity of row's brush holder support is 15-20; With soft bristle, can be used in most Faveolate denitration catalysts of using in the present industry on the brush holder support.
Compared with prior art, this technology has following advantage:
1, can effectively remove the tiny fly ash granule that catalyst pores inside is difficult to remove.
2, can the hole wall of catalyst inside not damaged, improved the service life of catalyst, economic and practical.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in the figure, the brush holder support at center rotates under the drive of motor (1), and through gear (3) engagement driven rotary, the space of brush holder support being stretched into honeycombed catalyst is inner between the brush holder support (4), can remove the inner fly ash granule of catalyst.According to the degree that catalyst inside flying dust stops up, suitably regulate the rotating speed of brush holder support, the fly ash granule of removing is discharged from the bottom of catalyst.
Claims (2)
1. catalyst for denitrating flue gas regeneration deashing device; Form by motor (1), rotating shaft (2), gear train (3), brush holder support (4); It is characterized in that: the brush holder support at center rotates under the drive of motor; Through the gears engaged driven rotary, the space of brush holder support being stretched into honeycombed catalyst is inner between the brush holder support, effectively the clean catalysis agent hole inside tiny fly ash granule that is difficult to remove.
2. denitrating catalyst regeneration deashing device as claimed in claim 1; It is characterized in that: brush holder support length is 900mm-1600mm, and the brush holder support diameter is 3mm-5mm, and the centre-to-centre spacing between the brush holder support is 7mm-9mm; The quantity of one row's brush holder support is 15-20; With soft bristle, can effectively clean the inner flying dust of using in the present industry of most Faveolate denitration catalysts, and can the hole wall of catalyst inside not damaged on the brush holder support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204272204U CN202315706U (en) | 2011-10-18 | 2011-10-18 | Ash removing device for regenerating flue gas denitrifying catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204272204U CN202315706U (en) | 2011-10-18 | 2011-10-18 | Ash removing device for regenerating flue gas denitrifying catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202315706U true CN202315706U (en) | 2012-07-11 |
Family
ID=46427708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204272204U Expired - Lifetime CN202315706U (en) | 2011-10-18 | 2011-10-18 | Ash removing device for regenerating flue gas denitrifying catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202315706U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588129A (en) * | 2014-12-31 | 2015-05-06 | 安科智慧城市技术（中国）有限公司 | Dry-process regeneration system and method of honeycomb type denitration catalyst module |
| CN105126615A (en) * | 2015-08-14 | 2015-12-09 | 苏州菲泰科过滤技术有限公司 | Portable denitration catalyst honeycomb hole dredge |
| CN108579416A (en) * | 2018-05-18 | 2018-09-28 | 重庆市机电设计研究院 | Industrial personal computer working method is purified for catalyst for treating waste gas |
| CN109226110A (en) * | 2018-10-31 | 2019-01-18 | 国电环境保护研究院有限公司 | A kind of thin hole deashing device of honeycomb type denitrification catalyst |
| CN110201533A (en) * | 2019-04-26 | 2019-09-06 | 华电电力科学研究院有限公司 | A kind of clear ash exhauster of SCR denitration system catalyst and its working method |
-
2011
- 2011-10-18 CN CN2011204272204U patent/CN202315706U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588129A (en) * | 2014-12-31 | 2015-05-06 | 安科智慧城市技术（中国）有限公司 | Dry-process regeneration system and method of honeycomb type denitration catalyst module |
| CN105126615A (en) * | 2015-08-14 | 2015-12-09 | 苏州菲泰科过滤技术有限公司 | Portable denitration catalyst honeycomb hole dredge |
| CN105126615B (en) * | 2015-08-14 | 2017-05-31 | 苏州菲泰科过滤技术有限公司 | Portable denitration catalyst honeycomb hole dredge |
| CN108579416A (en) * | 2018-05-18 | 2018-09-28 | 重庆市机电设计研究院 | Industrial personal computer working method is purified for catalyst for treating waste gas |
| CN108579416B (en) * | 2018-05-18 | 2020-02-18 | 重庆市机电设计研究院 | Working method of industrial personal computer for purifying waste gas treatment catalyst |
| CN109226110A (en) * | 2018-10-31 | 2019-01-18 | 国电环境保护研究院有限公司 | A kind of thin hole deashing device of honeycomb type denitrification catalyst |
| CN109226110B (en) * | 2018-10-31 | 2024-02-06 | 国电环境保护研究院有限公司 | Honeycomb denitration catalyst is dredged Kong Qinghui device |
| CN110201533A (en) * | 2019-04-26 | 2019-09-06 | 华电电力科学研究院有限公司 | A kind of clear ash exhauster of SCR denitration system catalyst and its working method |
| CN110201533B (en) * | 2019-04-26 | 2024-01-23 | 华电电力科学研究院有限公司 | SCR denitration system catalyst ash removal and discharge device and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202315706U (en) | Ash removing device for regenerating flue gas denitrifying catalyst | |
| JP2014512955A (en) | Clog removal method for SCR catalyst and system | |
| CN103736527A (en) | Manufacturing method and process device of reactivated cleaning agent for regeneration of honeycomb SCR (selective catalytic reduction) denitration catalyst | |
| CN102580788B (en) | Device for online cleaning and regeneration of SCR (Selective Catalytic Reduction) catalyst | |
| CN203494378U (en) | SCR (Selective Catalytic Reduction) denitration device for controlling NOx of rotary cement kiln | |
| CN102078761A (en) | Comprehensive flue gas desulfurization, mercury removal and denitration process and device | |
| CN107297226A (en) | A kind of SCR denitration renovation process | |
| CN109675436A (en) | A kind of system and method for flue gas pollutant combined desulfurization and denitration | |
| CN104826489A (en) | Activated carbon and low temperature catalyst-based combined desulfurization denitration fluidized bed device | |
| CN201572607U (en) | Dust removal and denitration composite device for coal smoke | |
| CN106311287B (en) | A kind of alkali metal poisoning denitrating catalyst regeneration method | |
| CN104549561A (en) | Method for regenerating selective reduction denitration catalyst for flue gas | |
| CN203750913U (en) | Collaborative cleaning device with flue gas denitrification catalyst regeneration function | |
| CN202590630U (en) | Coal-fired boiler low-temperature selective catalytic reduction (SCR) fixed bed smoke denitration device | |
| CN104324591A (en) | Method for removing nitric oxide in coking process | |
| CN204395780U (en) | A kind of combined desulfurization and denitration fluidized bed plant based on active carbon and low temperature catalyst | |
| CN107051592A (en) | A kind of renovation process of lead poisoning SCR denitration | |
| CN203525551U (en) | Electrostatic dust collector used for flue gas comprehensive treatment device | |
| CN204395725U (en) | The horizontal desulfurizing tower of a kind of active carbon | |
| CN105056950A (en) | Microwave NOx removal catalyst based on coal-based carbon and preparation method thereof | |
| CN214075572U (en) | Air purification device used in cab of coal mine drilling machine equipment | |
| CN104548936A (en) | Ultrasonic device for cleaning denitration catalyst | |
| CN103587136A (en) | Device and method for continuous pleat pressing of flat plate type SCR denitration catalyst | |
| CN109173712B (en) | Design method of heavy diesel vehicle tail gas tiny dust treatment device | |
| CN205760636U (en) | A kind of automatic ash removing device being applicable to denitrating catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Han Yongfu Document name: Notice of expiration and termination of patent right |
|
| DD01 | Delivery of document by public notice |