CN202219168U - SCR (selective catalytic reduction) catalyst pore washing and dredging device - Google Patents
SCR (selective catalytic reduction) catalyst pore washing and dredging device Download PDFInfo
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- CN202219168U CN202219168U CN2011202987823U CN201120298782U CN202219168U CN 202219168 U CN202219168 U CN 202219168U CN 2011202987823 U CN2011202987823 U CN 2011202987823U CN 201120298782 U CN201120298782 U CN 201120298782U CN 202219168 U CN202219168 U CN 202219168U
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Abstract
The utility model relates to an SCR (selective catalytic reduction) catalyst pore washing and dredging device, wherein a support mechanism comprises a framework and lower support beams; the lower support beams are fixed at the bottom of the framework; a driving shaft and a driven shaft respectively connected with the framework are mounted on two side plates of a box body through bearings; a motor mounted on the box body is connected with the driving shaft through a reducer; a catalyst unit is vertically arranged in the framework; at least two connecting beams, more than two cross beams and more than two longitudinal beams are connected with one another on a top cover; the two sides of each connecting beam are mounted at the top of the framework in a detachable form through fasteners; a regulating and limiting mechanism is arranged at the joint of the top cover and each catalyst; regulating parts of the regulating and limiting mechanisms are connected with a lower support plate and an upper support plate; the lower support plate corresponds to the joint of each group of catalysts; a crossed limiting groove on the top of the upper support plate is connected with the cross beams and the longitudinal beams; and a bubbling mechanism is further arranged at the lower part of the box body. The SCR catalyst pore washing and dredging device is reasonable in structure, is convenient to mount, can wash the whole catalyst unit, is difficult to cause breakage of the catalysts, and can improve the washing efficiency.
Description
Technical field
The utility model relates to the cleaning and dredging device in a kind of SCR catalyst duct, belongs to selective catalytic reduction catalyst cleaning technique field.
Background technology
According to present economy and megatrend, to the year two thousand thirty China's nitrogen oxide emission will reach 3,540 ten thousand tons.Discharged nitrous oxides not only makes NO
2Concentration raises, and can also promote the formation of photochemical fog and fine particle, causes serious air environmental pollution.The coal-burning power plant is one of main source that artificially produces the NOx pollution, and NOx discharges in the control coal-burning power plant, is directly connected to the overall situation of NOx pollution control.
In numerous coal-burning power plant's denitration technologies, SCR (selective catalytic reduction) be use in the world at most at present, a kind of gas denitrifying technology of mature and effective the most.Catalyst is the core of SCR technology, and wherein honeycomb type catalyst is to select maximum catalyst at present for use.Honeycomb type catalyst all more or less exists fouling of catalyst duct even clogging after using a period of time, and the reason that results in blockage mainly contains: (I) coal-fired flue-gas wraps flyash and the furnace wall foreign material such as coking dirt that come off and stops up; When (II) adopting the steam soot blowing design, moisture is brought into, made the loose originally powdery dirt quality that can become hard; When (III) not meeting the operation design specification owing to ammonia spraying amount; Phenomenons such as ammonium sulfate crystallization obstruction take place, and seriously even can the catalyst duct be stopped up solidly, flue gas can't be circulated; This not only causes denitration efficiency to descend, and also can cause unit generation operation troubles.Therefore, it is very necessary that the catalyst of fouling dust stratification is carried out cleaning and dredging, and simultaneously, this also regenerates necessary to decaying catalyst.
Disclose at present a kind of catalyst cleaning device, supporting arrangement rotatable with or swing is installed in the container, makes supporting arrangement around an axle rotation or swing; A branch of or multi beam catalyst to be cleaned is fixed on the two ends of supporting arrangement; Through supporting arrangement catalyst is fixed, but be provided with a plurality of rinse mouths, the two ends of catalyst two supports device at the two ends of supporting arrangement; And through a plurality of rinse mouths on the supporting arrangement two ends cleaning fluid is flowed into catalysis end agent opening one end and flow in the duct; In rotation or swing process, cleaning fluid is discharged from the other end of catalyst orifice flow, through cleaning fluid the fouling dust stratification in the catalyst channels is cleaned; This catalyst is substrate with the metal material; Therefore can catalyst can be connected on the deck at supporting arrangement two ends, and adopt jet etc. that liquid is got into an end of supporting arrangement, and catalyst is cleaned.But the problem that this device exists is: honeycomb type catalyst is to be formed by the powdery compacting at present; Its skeleton is very thin, fragility is very big; During this device uses, a plurality of catalyst are arranged on processing unit of formation in the box with two opened ends, and a plurality of processing units are installed along short transverse; Make flue gas pass through the passage of each catalyst, the flue gas that flows through is handled.But when catalyst is cleaned,, therefore can only processing unit be placed in the rinse bath because catalyst fragility is very big; But in rotation or swing process, be prone to cause catalyst to break up, catalyst can't be used; Therefore soak through cleaning fluid at present the catalyst in the casing is cleaned, but after the catalyst obstruction, cleaning fluid can't circulate; Event needs to increase the number of times and the time of soaking, and the cleaning fluid cleaning efficiency is very low, also increases the construction period; Improve construction cost, and go out to have increased workman's workload.
Summary of the invention
The purpose of the utility model provides a kind of rational in infrastructure, and is easy for installation, can clean catalyst elements is whole, and be difficult for causing catalyst breakage, can improve the cleaning and dredging device in the SCR catalyst duct of cleaning efficiency.
The utility model is that the technical scheme that achieves the above object is: the cleaning and dredging device in a kind of SCR catalyst duct; Comprise the casing and the supporting device that is arranged in the casing that are used to deposit liquid; Casing is provided with feed tube and bottom half is provided with blowoff valve; It is characterized in that: described supporting device comprises framework all around and is fixed on the plural lower deck carline that base of frame is provided with at interval; Be separately installed with on the bearing block on the casing biside plate, the driving shaft and the driven axle of same axis are bearing on the bearing block through bearing, and an end of driving shaft and driven axle is separately fixed on two backbars of framework; The motor that is installed on the casing is connected with driving shaft through decelerator, and perpendicular the putting in framework and by lower deck carline of catalyst elements supported; The top of supporting device is equipped with top cover; Described top cover comprises at least two tie-beams and plural crossbeam and plural longeron; The both sides of tie-beam are arranged on crossbeam at interval and are fixed on each tie-beam respectively through the removable top that is installed in framework of securing member, and the longeron that is provided with at interval is fixedly connected with crossbeam; Top cover and each catalyst joint are provided with the adjusting position-limit mechanism; Described adjusting position-limit mechanism comprises lower support plate, regulating part and upper bearing plate, and the both sides of regulating part are connected with upper bearing plate with lower support plate respectively, and it is corresponding respectively to organize the joint of catalyst in lower support plate and the catalyst elements; The bottom of lower support plate has beam, and the intersection stopper slot at upper bearing plate top joins with crossbeam and longeron respectively; Described lower box also is equipped with bubbling mechanism, and bubbling mechanism comprises the air inlet pipe of sealing and fixing on casing and the aeration tube that is positioned at casing, and aeration tube is provided with the above solarization air cap that is provided with at interval of a row vertically.
The two ends of the utility model on casing are separately installed with supporting base; Driving shaft and driven axle are connected on the casing through bearing respectively; And the end of driving shaft and driven axle is separately fixed on the supporting device; Drive supporting machinery through motor and reducing gear and rotate, make in the catalyst elements in the supporting device and in its casing, rotate, the utility model through being installed in supporting device top case lid and be installed in case lid and each organizes the adjusting position-limit mechanism on catalyst joint; Especially regulate in the position-limit mechanism upper bearing plate respectively with top cover on crossbeam and longeron clamping; The beam of the lower support plate bottom of regulating in the position-limit mechanism is withstood on the catalyst, prevented catalyst elements moving to reach and collide between in rotary course, taking place relatively effectively, solve the problem of catalyst cracky in the rotation process.The utility model catalyst elements is rotated in respectively organizes catalyst duct one end with the entering of cleaning cleaning fluid; Make catalyst elements in casing, carry out switching-over dipping off and on, can cleaning fluid be poured in the duct of catalyst one end through rotation simultaneously, when cleaning fluid rotates in catalyst elements; And the dirt surperficial with it that in the catalyst duct, flow reacts; These cleaning fluids are toppled over outflow from the other end in catalyst duct in rotation simultaneously, simultaneously partly soluble dirt are taken out of in the lump, so go round and begin again; The cleaning fluid dipping is constantly arranged, pour into; Constantly dissolved dirt is flowed out again, thus the Fouling Cleaning the most at last in the catalyst pores road fall, reach purpose to the cleaning of catalyst duct.The utility model is provided with bubbling mechanism at lower box, and the solarization air cap through being arranged on the aeration tube in the casing in feeding cleaning fluid, carries out disturbance to the cleaning fluid in the casing with gas; Can make cleaning fluid wash away the dirt in the duct, and accelerate the erosion of cleaning fluid, reach the purpose of peeling off dirt dirt; The utility model can improve the cleaning fluid cleaning efficiency, has accelerated detergent power, shortens the construction period; Can improve cleaning efficiency expeditiously with the duct mediation of stopping up.The utility model rotates through the motor-driven supporting device; And top cover is installed on the supporting device through securing member, and carries out spacing, simple in structure through regulating position-limit mechanism to each group catalyst; Easy for installation; Owing to can clean catalyst elements is whole, increase substantially cleaning efficiency, also reducing worker's workload.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is made further detailed description.
Fig. 1 is the structural representation of the cleaning and dredging device in the utility model SCR catalyst duct.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 is the plan structure sketch map of Fig. 1.
Fig. 4 is the sectional structure sketch map of the A-A of Fig. 2.
Fig. 5 is the I place structure for amplifying sketch map of Fig. 4.
Fig. 6 is originally to be the perspective view of cleaning and dredging device in the SCR catalyst duct of the utility model.
Fig. 7 is the structure for amplifying sketch map figure of II place of Fig. 6.
Fig. 8 is the structural representation of the bubbling mechanism of the utility model.
Fig. 9 is the cross section structure sketch map of the utility model aeration tube.
Wherein: 1-blowoff valve, 2-frame, 3-bubbling mechanism, house steward 3-1-, 3-2-aeration tube, 3-3-solarization air cap, 4-casing; The 4-1-support, 4-2-electric machine support, 5-decelerator, 6-supporting device, 6-1-column, 6-2-frame beam, 6-3-backbar; The 6-4-supporting base, 6-5-lower deck carline, 7-top cover, 7-1-tie-beam, 7-2-longeron, 7-3-crossbeam, 8-feed tube; The 9-motor, 10-heating tube, 11-bearing block, 12-driven axle, 13-catalyst elements, 13-1-shell, 13-2-catalyst; The 14-driving shaft, 15-regulates position-limit mechanism, and 15-1-upper bearing plate, 15-2-intersect stopper slot, 15-3-regulating part, 15-4-lower support plate.
The specific embodiment
See shown in Fig. 1～3; The cleaning and dredging device in the SCR catalyst duct of the utility model comprises the casing 4 and the supporting device 6 that is arranged in the casing 4 that are used to deposit liquid, and these casing 4 bottoms are the closing in shape; Casing 4 bottoms can be awl column or prism; Casing 4 is fixed on the frame 2, and casing 4 bottoms are provided with blowoff valve 1, through blowoff valve 1 the cleaning waste liquid in the casing 4 is discharged.Casing 4 is provided with feed tube 8, will clean cleaning fluid through feed tube 8 and add in the casing 4, in the casing 4 liquid level sensor is installed, and can clean the capacity of cleaning fluid in casing 4 through the liquid level sensor monitoring.Shown in Fig. 1～7; The supporting device 6 of the utility model comprises framework all around and is fixed on the plural lower deck carline 6-5 that base of frame is provided with at interval; Catalyst elements 13 perpendicular putting in framework and by lower deck carline 6-5 are supported; The utility model the catalyst elements 13 that will clean by in shell 13-1 and the plug-in mounting shell 13-1, the perpendicular many groups catalyst 13-2 that puts constitutes; Catalyst elements 13 perpendicular putting in framework and by lower deck carline 6-5 are supported, the frame beam 6-2 formation frame structure that this framework comprises four jiaos column 6-1 and is connected each column 6-1 upper and lower, and the backbar 6-3 of two symmetries are separately fixed on the two frame beam 6-2; Two backbar 6-3 are connected with driven axle 12 with driving shaft 14 respectively; The frame beam 6-2 of bottom goes up at interval lower deck carline 6-5 is installed, and through lower deck carline 6-5 catalyst elements 13 is supported, and does not influence again simultaneously in the duct of cleaning fluid entering catalyst 13-2.See shown in Fig. 1～5; Be separately installed with on the bearing block 11 on the utility model casing 4 biside plates; Bearing block 11 is installed on the support 4-1 on the casing 4, and the driving shaft 14 and the driven axle 12 of same axis are bearing on the bearing block 11 through bearing, and an end of driving shaft 14 and driven axle 12 is separately fixed at the backbar 6-3 both sides of framework; Two outsides of the backbar 6-3 of this framework are fixed with supporting base 6-4 respectively; Driving shaft 14 is fixed on each supporting base 6-4 through securing member or key respectively with driven axle 12, and the motor 9 that is installed on the casing 4 is connected with driving shaft 14 through decelerator 5, and this motor can be installed on the electric machine support 4-2 of casing 4; The motor 9 and the decelerator 5 of the utility model can adopt prior motor and stepper motor, gear reduction unit etc.; The output shaft of motor 9 is connected with the input gear of decelerator 5, and the output gear of decelerator 5 is connected with driving shaft 14, rotates with respect to casing 4 through decelerator 5 deceleration supporting devices 6 through motor 9.See shown in Fig. 1～7; The top of the utility model supporting device 6 is equipped with top cover 7, and this top cover 7 comprises at least two tie-beam 7-1 and plural crossbeam 7-3 and plural longeron 7-2, is arranged on crossbeam 7-3 at interval and is fixed on each tie-beam 7-1; And the longeron 7-2 that is provided with at interval is fixedly connected with crossbeam 7-3; The plural crossbeam 7-3 of top cover 7 makes top cover 7 overall structures of formation and has rigidity preferably for the perpendicular connecting plate of putting, each longeron 7-2 is fixed on the connecting plate bottom; The both sides of tie-beam 7-1 are respectively through the removable top that is installed in framework of securing member; Promptly top cover 7 is connected on the frame beam 6-2 of framework, or pulls down securing member top cover 7 is removed from frame beam 6-2 through securing member, easy to operate.See shown in Fig. 4～7; The top cover 7 of the utility model is provided with the adjusting position-limit mechanism 15 more than four with each group catalyst 13-2 joint; Each is regulated position-limit mechanism 15 and comprises lower support plate 15-4, regulating part 15-3 and upper bearing plate 15-1; The both sides of regulating part 15-3 are connected with upper bearing plate 15-1 with lower support plate 15-4 respectively; And the joint of respectively organizing catalyst 13-2 in lower support plate 15-4 and the catalyst elements 13 is corresponding; The bottom of lower support plate 15-4 has beam, and the intersection stopper slot 15-2 at upper bearing plate 15-1 top joins with crossbeam 7-3 and longeron 7-2 respectively, makes the two ends up and down of regulating position-limit mechanism 15 withstand on top cover 7 respectively through the intersection stopper slot 15-2 on the upper bearing plate 15-1 and reaches the joint of respectively organizing catalyst 13-2; Especially the beam of lower support plate 15-4 contacts for flexible with catalyst 13-2; So can at utmost reduce the destruction to catalyst 13-2 end face, the utility model beam only joins with the joint that each organizes catalyst 13-2, also reduces the area that blocks catalyst 13-2 duct end face to the full extent.See Fig. 5, shown in 7, the regulating part 15-3 of the utility model is the adjusting rod that both sides have screw thread, the adjusting rod both sides are screwed in respectively on lower support plate 15-4 and the upper bearing plate 15-1; When rotation adjusting part 15-3, upper bearing plate 15-1 and lower support plate 15-4 are moved up and down respectively, withstand on respectively on top cover 7 and the catalyst 13-2; Or during rotation adjusting part 15-3; Make upper bearing plate 15-1 and lower support plate 15-4 withdrawal, remove and regulate position-limit mechanism 15, the regulating part 15-3 of the utility model also can be elastic component; Like spring etc.; The two ends of this elastic component are fixedly connected with upper bearing plate 15-1 with lower support plate 15-4 respectively, and the elastic force through elastic component moves up and down upper bearing plate 15-1 and lower support plate 15-4 respectively, and withstands on top cover 7 and the catalyst 13-2.
Fig. 1,8, shown in 9; The utility model flows in casing 4 for making the cleaning fluid power, and casing 4 bottoms also are equipped with bubbling mechanism 3, and bubbling mechanism 3 comprises the air inlet pipe of sealing and fixing on casing 4 and the aeration tube 3-2 that is positioned at casing 4; Aeration tube 3-2 is provided with the above solarization air cap 3-3 that is provided with at interval of a row vertically; Aeration tube 3-2 is setting more than two, and each aeration tube 3-2 one end is connected with air inlet pipe at interval, preferably is provided with two row's solarization air cap 3-3 on this aeration tube 3-2; And respectively arrange the solarization air cap 3-3 setting that interlaces, cleaning fluid is stirred.See Fig. 8, shown in 9, each aeration tube 3-2 one end of the utility model is connected with house steward 3-1 at interval, gas is through in each aeration tube 3-2 of house steward 3-1 entering; Solarization air cap 3-3 two rows on each aeration tube 3-2 are above to be provided with at interval; Angle between this solarization air cap central axis and the aeration tube vertical guide is at 20～60 °, and as 30 °, 35 °, 40 °, 50 ° etc., the angle between solarization air cap central axis and the aeration tube vertical guide is between 30～45 °; Make the gas stirring cleaning fluid through solarization air cap 3-3; Make entering catalyst 13-2 duct cleaning liquid inside carry out corroding, and accelerate the dissolving of cleaning fluid, to improve cleaning efficiency dirt around moving to dirt.The utility model also can be provided with heating tube 10 in the bottom of casing 4; Heat through 10 pairs of cleaning fluids of heating tube; Through carrying out aeration and heating continuously or at interval, improve the utilization rate of cleaning fluid, the dirt in the catalyst 13-2 through hole is dissolved fast; And in rotation, these cleaning fluids are toppled over outflow from the other end in catalyst 13-2 duct, simultaneously partly soluble dirt is taken out of in the lump.
See shown in Fig. 1～9, catalyst elements 13 perpendicular putting are installed in the supporting device 6, top cover 7 is installed in supporting device 6 through securing member; Again each is regulated position-limit mechanism 15 and place respectively between top cover 7 and the catalyst elements 13, the intersection stopper slot 15-2 on the upper bearing plate 15-1 is connected on the longeron 7-2 and crossbeam 7-3 of top cover 7, lower support plate 15-4 withstands on the joint of respectively organizing catalyst 13-2; Cleaning fluid is added in the casing 4 through feed tube 8, a side of catalyst elements 13 is soaked, restart motor 9; Motor 9 drives driving shaft 14 through decelerator 5 and rotates, and driving shaft 14 drives supporting device 6 rotations, simultaneously; Driven axle 12 rotates along bearing block 11 at the opposite side of supporting device 6, and when catalyst elements 13 was rotated with supporting device 6, the cleaning fluid in its duct flowed to lower in the gravity effect from eminence; The other end flows out from catalyst 13-2 duct, and to going out, the bubbling mechanism 3 through casing 4 bottoms makes gas constantly stir cleaning fluid simultaneously with cleaning fluid and dirt; Cleaning fluid is carried out in the duct of catalyst 13-2 around moving etch, can also at interval catalyst elements 13 both sides be immersed in respectively in the cleaning fluid, make supporting device 6 rotations through motor 9 again through motor 9; The dirt and the cleaning fluid of dissolving are taken out of in the lump, deactivated catalyst 13-2 is regenerated, after cleaning finishes; Discharge the cleaning waste liquid through casing 4 bottom blow-down valves 1; Remove and regulate position-limit mechanism 15, top cover 7 is pulled down, hang out catalyst elements 13 and get final product.
Claims (7)
1. the cleaning and dredging device in a SCR catalyst duct; Comprise the casing (4) that is used to deposit liquid and be arranged on the supporting device (6) in the casing (4); Casing (4) is provided with feed tube (8); Casing (4) bottom is provided with blowoff valve (1), it is characterized in that: described supporting device (6) comprises framework all around and is fixed on the plural lower deck carline (6-5) that base of frame is provided with at interval, is separately installed with on the bearing block (11) on casing (4) biside plate; Driving shaft of same axis (14) and driven axle (12) are bearing on the bearing block (11) through bearing; And an end of driving shaft (14) and driven axle (12) is separately fixed at two backbars (6-3) of framework, and the motor (9) that is installed on the casing (4) is connected with driving shaft (14) through decelerator (5), and perpendicular the putting in framework and by lower deck carline (6-5) of catalyst elements (13) supported; The top of supporting device (6) is equipped with top cover (7); Described top cover (7) comprises at least two tie-beams (7-1) and plural crossbeam (7-3) and plural longeron (7-2); The both sides of tie-beam (7-1) are respectively through the removable top that is installed in framework of securing member; Being arranged on crossbeam (7-3) at interval is fixed on each tie-beam (7-1); And the longeron (7-2) that is provided with at interval is fixedly connected with crossbeam (7-3), and top cover (7) is provided with the adjusting position-limit mechanism (15) more than four with each catalyst joint, and the described position-limit mechanism of respectively transferring comprises lower support plate (15-4), regulating part (15-3) and upper bearing plate (15-1); The both sides of regulating part (15-3) are connected with upper bearing plate (15-1) with lower support plate (15-4) respectively; And the joint of respectively organizing catalyst in lower support plate (15-4) and the catalyst elements (13) is corresponding, and the bottom of lower support plate (15-4) has beam, and the intersection stopper slot (15-2) at upper bearing plate (15-1) top joins with crossbeam (7-3) and longeron (7-2) respectively; Described casing (4) bottom also is equipped with bubbling mechanism (3); Bubbling mechanism (3) comprises the air inlet pipe of sealing and fixing on casing (4) and the aeration tube (3-2) that is positioned at casing (4), and aeration tube (3-2) is provided with the above solarization air cap (3-3) that is provided with at interval of a row vertically.
2. the cleaning and dredging device in SCR catalyst according to claim 1 duct; It is characterized in that: said framework comprises four jiaos column (6-1) and the frame beam (6-2) that is connected each column (6-1) upper and lower, and the backbar (6-3) of two symmetries is separately fixed at two frame beams (6-2).
3. the cleaning and dredging device in SCR catalyst according to claim 1 duct is characterized in that: two outsides of the backbar of said framework (6-3) are fixed with supporting base (6-4) respectively, and driving shaft (14) and driven axle (12) are separately fixed at supporting base (6-4).
4. the cleaning and dredging device in SCR catalyst according to claim 1 duct; It is characterized in that: described aeration tube (3-2) is more than two; Each aeration tube (3-2) end is connected with air inlet pipe at interval; And two rows of the solarization air cap (3-3) on each aeration tube (3-2) are above to be provided with at interval, and the angle between solarization air cap central axis and the aeration tube vertical guide is at 20～60 °.
5. the cleaning and dredging device in SCR catalyst according to claim 1 duct is characterized in that: the plural crossbeam (7-3) on the said top cover (7) is the perpendicular connecting plate of putting, and each longeron (7-2) is fixed on the bottom of connecting plate.
6. the cleaning and dredging device in SCR catalyst according to claim 1 duct is characterized in that: described regulating part (15-3) has the adjusting rod of screw thread for both sides, and the adjusting rod both sides spin respectively on lower support plate (15-4) and the upper bearing plate (15-1).
7. the cleaning and dredging device in SCR catalyst according to claim 1 duct is characterized in that: described regulating part (15-3) is an elastic component, and the two ends of elastic component are fixedly connected with upper bearing plate (15-1) with the lower support plate that spins (15-4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202987823U CN202219168U (en) | 2011-08-17 | 2011-08-17 | SCR (selective catalytic reduction) catalyst pore washing and dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202987823U CN202219168U (en) | 2011-08-17 | 2011-08-17 | SCR (selective catalytic reduction) catalyst pore washing and dredging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202219168U true CN202219168U (en) | 2012-05-16 |
Family
ID=46041206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202987823U Withdrawn - After Issue CN202219168U (en) | 2011-08-17 | 2011-08-17 | SCR (selective catalytic reduction) catalyst pore washing and dredging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202219168U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284306A (en) * | 2011-08-17 | 2011-12-21 | 常州市肯创环境工程技术有限公司 | Cleaning and dredging device for SCR (Selective Catalytic Reduction) catalyst pore |
| CN108707861A (en) * | 2018-07-26 | 2018-10-26 | 天津鹏宇兴业五金制品有限公司 | A kind of powder zincizing degreasing unit |
| CN114729585A (en) * | 2019-11-25 | 2022-07-08 | 沃尔沃卡车集团 | Method for opening pores in selective catalytic reduction catalyst |
-
2011
- 2011-08-17 CN CN2011202987823U patent/CN202219168U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284306A (en) * | 2011-08-17 | 2011-12-21 | 常州市肯创环境工程技术有限公司 | Cleaning and dredging device for SCR (Selective Catalytic Reduction) catalyst pore |
| CN102284306B (en) * | 2011-08-17 | 2012-12-12 | 江苏肯创环境科技股份有限公司 | Cleaning and dredging device for SCR (Selective Catalytic Reduction) catalyst pore |
| CN108707861A (en) * | 2018-07-26 | 2018-10-26 | 天津鹏宇兴业五金制品有限公司 | A kind of powder zincizing degreasing unit |
| CN114729585A (en) * | 2019-11-25 | 2022-07-08 | 沃尔沃卡车集团 | Method for opening pores in selective catalytic reduction catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU COUNTRY ENVIRONMENTAL TECHNOLOGIES CO., LT Free format text: FORMER NAME: CHANGZHOU KENCHUANG ENVIRONMENTAL ENGINEERING TECHNIQUE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 213022, No. 406, north, innovation and technology building, Xinbei hi tech park, Changzhou, Jiangsu Patentee after: COUNTRY JIANGSU ENVIRONMENT TECHNOLOGY CO., LTD. Patentee after: South China University of Technology Address before: Wujin District of Jiangsu city of Changzhou province Dingan road 213161 No. 35 Tian Lu Plaza F4-1 Patentee before: Hangzhou Kenchuang Environment Engineering Technology Co., Ltd. Patentee before: South China University of Technology |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120516 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |