CN104368399B - A kind of device dredging honeycomb fashion regeneration SCR catalyst duct - Google Patents
A kind of device dredging honeycomb fashion regeneration SCR catalyst duct Download PDFInfo
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- CN104368399B CN104368399B CN201410624242.8A CN201410624242A CN104368399B CN 104368399 B CN104368399 B CN 104368399B CN 201410624242 A CN201410624242 A CN 201410624242A CN 104368399 B CN104368399 B CN 104368399B
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Abstract
The invention discloses a kind of device dredging honeycomb fashion regeneration SCR catalyst duct, including the drill bit for loosening blocking catalyst unit duct dirt, air guide channel assembly and the reservoir for depositing cleanout fluid with switch module, air guide channel assembly one end is connected with drill bit by swivel joint, the other end of air guide channel assembly connects air compression plant, one end of reservoir is connected with air compression plant by air guide channel assembly, the other end of reservoir is connected with drill bit by air guide channel assembly, drill bit is hollow structure and turns on conduit assembly, it is provided with venthole on the sidewall of drill bit.Drill bit makes the dirt in blocking catalyst duct loosen in rotation, can avoid directly firmly dredging the catalyst hole wall caused and breakage occurs.And drill bit is hollow structure and is connected with reservoir, air compression plant by air guide channel assembly.Under the control of switch module, air will carry out touching spilling by the venthole on drill bit with cleanout fluid.
Description
Technical field
The present invention relates to a kind of remove the device of dirt in honeycomb fashion duct, especially relate to a kind of dredging honeycomb fashion regeneration
The device in SCR catalyst duct.
Background technology
At present, power plants commonly used honeycomb fashion SCR denitration carries out denitration process to boiler smoke.SCR
Denitrating system typically uses high dirt arrangement, and after long-time use, clogging easily occurs in catalyst duct, leads
Cause denitrating system pressure drop rising, out of stock efficiency declines.Therefore, in catalyst regeneration process, need in catalyst duct
Dirt thoroughly remove, recover specific surface area of catalyst, simultaneously for the subsequent catalyst surface poisoning material degree of depth remove provide
Condition.
During SCR catalyst regeneration, the commonly used compressed air of producer directly purges or absorbs by negative pressure, cleaning
Effect is limited.Sometimes for improving elimination effect, utilizing the sharp instruments such as iron wire to be purged, misoperation easily causes
Catalyst hole wall is destroyed, and there will be catalyst module because of well damage when the blocking of catalyst elements duct is more serious
Non-renewable situation, reduces the yield rate of spent catalyst module Regeneration Treatment.For solving the problems referred to above, middle promulgated by the State Council
The cleaning and dredging dress in a kind of SCR catalyst duct disclosed in bright patent application prospectus CN201110235622.9
Putting, this device includes supporting rotary system and bubble systems, utilize rotate, the mode of bubbling is by dirt in catalyst duct
Remove.There are the following problems in module regeneration process for this device: 1, the catalyst soak time is longer, easily makes
Become catalyst elements intensity to reduce, cause catalyst elements to be damaged in rotary course.2, long-time immersion causes processing
After catalyst elements water content relatively big, swelling occurs.In heat treatment process, catalyst elements is along with the steaming of moisture
Send existing contraction and produce stress, easily occur that catalyst elements problem of Cracking reduces in catalyst module regenerative process
Yield rate.
Summary of the invention
The technical problem to be solved be to provide a kind of easy to use, operability is relatively strong and is hardly damaged and urges
The device in the dredging honeycomb fashion regeneration SCR catalyst duct of agent unit.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of dredging honeycomb fashion regeneration SCR catalyst
The device in duct, including the drill bit for loosening blocking catalyst unit duct dirt, with the air guide channel of switch module
Assembly and the reservoir for depositing cleanout fluid, described air guide channel assembly one end is by swivel joint and described drill bit
Connecting, the other end of air guide channel assembly connects has air compression plant, one end of described reservoir to pass through air guide channel
Assembly is connected with air compression plant, and the other end of reservoir is connected with drill bit by air guide channel assembly, described drill bit
Turn on for hollow structure and with conduit assembly, the sidewall of described drill bit is provided with venthole.
Described air guide channel assembly includes air-guide main tube, the first air-guide branch pipe and the second air-guide branch pipe, described inducing QI master
The right-hand member of pipe is connected with swivel joint, and the left end of air-guide main tube is connected with described air compression plant, described reservoir
Right-hand member and the first air-guide branch pipe left end connect, the right-hand member of the first air-guide branch pipe is connected with air-guide main tube, described liquid storage
The left end of device and the right-hand member of the second air-guide branch pipe connect, and the left end of the second described air-guide branch pipe is connected with air-guide main tube.Lead
Air compressor, reservoir are connected by gas channel components with drill bit, the venthole under the control of switch module, on drill bit
Air or cleanout fluid can be sprayed.
Described switch module includes the first switch, second switch, the 3rd switch and the 4th switch, the first described switch
Being arranged on the left end of air-guide main tube, described second switch is arranged on air-guide main tube, and second switch is positioned at the first inducing QI and props up
Between right-hand member and the left end of the second air-guide branch pipe of pipe, the first described air-guide branch pipe is provided with the 3rd switch, described
The 4th switch it is provided with on second air-guide branch pipe.Switch module includes multiple switch, for controlling in air guide channel assembly
Air and the flowing of cleanout fluid.
Described drill bit is spiral bit, and the head of drill bit is sharp-pointed, and the cervical region of drill bit is Flos Cannabis structure, described venthole
It is arranged on the left end of Flos Cannabis structure.Drill bit is the spiral bit that head is sharp-pointed, it is possible to be preferably catalyzed honeycomb fashion SCR
Agent duct is cleared up.And venthole is arranged on the left end of Flos Cannabis structure, also make the air that sprayed out by venthole or
Person's cleanout fluid can preferably contact the dirt in catalyst elements duct.
The outer surface of described venthole is provided with elastic seal ring, when the air pressure in air guide channel assembly is bigger,
Elastic seal ring is stretched, and air is discharged by venthole, when the air pressure in air guide channel assembly is recovered normal, and bullet
Property sealing ring recover normally cover venthole.Being disposed to of elastic seal ring avoids drill bit in operation process, gives vent to anger
Hole is blocked by dirt.
Described swivel joint inner hollow, swivel joint is connected by helicitic texture with drill bit, in described swivel joint
Being provided with sealing member, described swivel joint is connected with air guide channel assembly by sealing member, and described swivel joint connects
Being connected to motor, described motor is connected with swivel joint by brush.Sealing member is mechanical seal, makes swivel joint at height
Speed rotates and does not all have leakage in the compressed air, washing liquid transmission of high pressure.Motor passes through brush and swivel joint
Connecting, swivel joint can rotate under the driving of motor, drive bit simultaneously.
Compared with prior art, it is an advantage of the current invention that drill bit is connected with swivel joint, swivel joint drives bit.
Drill bit makes the dirt in blocking catalyst duct loosen in rotation, can avoid directly firmly dredging the catalyst hole wall caused and send out
Raw breakage.And drill bit is hollow structure and is connected with reservoir, air compression plant by air guide channel assembly.Opening
Closing under the control of assembly, air will carry out touching spilling by the venthole on drill bit with cleanout fluid.The drill bit of hollow is compression sky
Air stripping, for gas circuit, the dirt loosened by drill bit for purging, by dirt removal, thus reaches to dredge the mesh in catalyst duct
's.For the caking dirt being difficult to drill through in catalyst duct, for avoiding damage to catalyst hole wall, washing liquid is sprayed at knot
Block Fouling surfaces, makes dirt decompose, thus convenient dredging catalyst elements duct.The present invention is easy to operate, is hardly damaged
Catalyst hole wall, improves yield rate and the efficiency of spent catalyst regeneration.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1: a kind of device dredging honeycomb fashion regeneration SCR catalyst duct, urge including for loosening blocking
The drill bit 1 of agent unit duct dirt, air guide channel assembly and the reservoir for depositing cleanout fluid with switch module
5, air guide channel assembly one end is connected with drill bit 1 by swivel joint 2, and the other end of air guide channel assembly connects free
Air pressure compression apparatus, one end of reservoir 5 is connected with air compression plant by air guide channel assembly, another of reservoir 5
End is connected with drill bit 1 by air guide channel assembly, and drill bit 1 is hollow structure and turns on conduit assembly, the side of drill bit 1
Venthole 6 it is provided with on wall.
Air guide channel assembly includes air-guide main tube's the 4, first air-guide branch pipe 11 and the second air-guide branch pipe 12, and air-guide main tube 4
Right-hand member be connected with swivel joint 2, the left end of air-guide main tube 4 is connected with air compression plant, the right-hand member of reservoir 5 with
The left end of the first air-guide branch pipe 11 connects, and the right-hand member of the first air-guide branch pipe 11 is connected with air-guide main tube 4, reservoir 5
The right-hand member of left end and the second air-guide branch pipe 12 connects, and the left end of the second air-guide branch pipe 12 is connected with air-guide main tube 4.Switch
Assembly includes the first switch 8, second switch the 10, the 3rd switch 7 and the 4th switch 9, and the first switch 8 is arranged on inducing QI
The left end of supervisor 4, second switch 10 is arranged on air-guide main tube 4, and second switch 10 is positioned at the first air-guide branch pipe 11
Right-hand member and the left end of the second air-guide branch pipe 12 between, the first air-guide branch pipe 11 is provided with the 3rd switch 7, second leads
The 4th switch 9 it is provided with on gas branch pipe 12.
Drill bit 1 is spiral bit 1, and the head of drill bit 1 is sharp-pointed, and the cervical region of drill bit 1 is Flos Cannabis structure, and venthole 6 sets
Put the left end in Flos Cannabis structure.The outer surface of venthole 6 is provided with elastic seal ring, the air in air guide channel assembly
When pressure is bigger, elastic seal ring is stretched, and air is discharged by venthole 6, the air pressure in air guide channel assembly
When recovering normal, elastic seal ring recovers normally to cover venthole 6.Swivel joint 2 includes sealing pipeline, seals pipeline
Being connected to drill bit 1 and air guide channel assembly, swivel joint 2 connects motor, and motor passes through brush 3 and swivel joint
2 connect.
During use, when in catalyst elements duct, dirt is the softest, first with the drill bit 1 rotated by catalyst elements
After dirt loosens in duct, restart air compression plant, and open the first switch 8 and second switch 10, close the 3rd
Switch 7 and the 4th switch 9.Now air is compressed and is transported to venthole 6, venthole 6 diffuse to catalyst list
In unit duct, loosening dirt is blown down.
When dirt lumps in catalyst elements duct, bore and open dirt if directly utilizing drill bit 1 and be easily destroyed catalyst pores
Wall, now can open the 3rd switch 7 and the 4th switch 9 before and after the first switch 8 and reservoir 5, and closes the
Two switches 10, are passed through reservoir 5 by compressed air, and the cleanout fluid in reservoir 5 is brought into drill bit 1 by compressed air, then
By the venthole 6 on drill bit 1, cleanout fluid is sprayed at caking Fouling surfaces, after utilizing cleanout fluid to decompose dirt, recycling
Dirt is blown down by compressed air.
Claims (6)
1. the device dredging honeycomb fashion regeneration SCR catalyst duct, it is characterised in that include urging for loosening blocking
The drill bit of agent unit duct dirt, air guide channel assembly and the reservoir for depositing cleanout fluid with switch module,
Described air guide channel assembly one end is connected with described drill bit by swivel joint, and the other end of air guide channel assembly connects
Having air compression plant, one end of described reservoir is connected with air compression plant by air guide channel assembly, reservoir
The other end be connected with drill bit by air guide channel assembly, described drill bit be hollow structure and with conduit assembly conducting, institute
It is provided with venthole on the sidewall of the drill bit stated.
A kind of device dredging honeycomb fashion regeneration SCR catalyst duct the most according to claim 1, its feature exists
Air-guide main tube, the first air-guide branch pipe and the second air-guide branch pipe, described air-guide main tube is included in described air guide channel assembly
Right-hand member be connected with swivel joint, the left end of air-guide main tube is connected with described air compression plant, described reservoir
The left end of right-hand member and the first air-guide branch pipe connects, and the right-hand member of the first air-guide branch pipe is connected with air-guide main tube, described reservoir
Left end and the second air-guide branch pipe right-hand member connect, the left end of the second described air-guide branch pipe is connected with air-guide main tube.
A kind of device dredging honeycomb fashion regeneration SCR catalyst duct the most according to claim 2, its feature exists
Include that the first switch, second switch, the 3rd switch and the 4th switch, the first described switch set in described switch module
Putting the left end air-guide main tube, described second switch is arranged on air-guide main tube, and second switch is positioned at the first air-guide branch pipe
Right-hand member and the left end of the second air-guide branch pipe between, the first described air-guide branch pipe is provided with the 3rd switch, described
The 4th switch it is provided with on two air-guide branch pipes.
A kind of device dredging honeycomb fashion regeneration SCR catalyst duct the most according to claim 1, its feature exists
Being spiral bit in described drill bit, the head of drill bit is sharp-pointed, and the cervical region of drill bit is Flos Cannabis structure, and described venthole sets
Put the left end in Flos Cannabis structure.
A kind of device dredging honeycomb fashion regeneration SCR catalyst duct the most according to claim 4, its feature exists
Outer surface in described venthole is provided with elastic seal ring, when the air pressure in air guide channel assembly is bigger, and bullet
Property sealing ring be stretched, air is discharged by venthole, when the air pressure in air guide channel assembly is recovered normal, elastic
Sealing ring recovers normally to cover venthole.
A kind of device dredging honeycomb fashion regeneration SCR catalyst duct the most according to claim 1, its feature exists
Including sealing pipeline in described swivel joint, described sealing pipeline is connected to drill bit and air guide channel assembly, described
Connecting on swivel joint and have motor, described motor is connected with swivel joint by brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624242.8A CN104368399B (en) | 2014-10-31 | 2014-10-31 | A kind of device dredging honeycomb fashion regeneration SCR catalyst duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624242.8A CN104368399B (en) | 2014-10-31 | 2014-10-31 | A kind of device dredging honeycomb fashion regeneration SCR catalyst duct |
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| CN104368399A CN104368399A (en) | 2015-02-25 |
| CN104368399B true CN104368399B (en) | 2016-09-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579417A (en) * | 2018-05-18 | 2018-09-28 | 重庆市机电设计研究院 | Catalyst for treating waste gas automatic feed and dredging system |
| CN108579359A (en) * | 2018-05-18 | 2018-09-28 | 重庆市机电设计研究院 | Longitudinal traveling mechanism for catalyst automatic dredging exhaust-gas treatment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032501A (en) * | 2015-07-15 | 2015-11-11 | 浙江浙能催化剂技术有限公司 | Method for dredging pore channels of honeycomb SCR (selective catalytic reduction) catalyst |
| CN114729585A (en) * | 2019-11-25 | 2022-07-08 | 沃尔沃卡车集团 | Method for opening pores in selective catalytic reduction catalyst |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005131548A (en) * | 2003-10-30 | 2005-05-26 | Suzuki Motor Corp | Catalyst coating apparatus |
| 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 |
| CN203635221U (en) * | 2013-10-17 | 2014-06-11 | 广东电网公司电力科学研究院 | Rotary cleaning regeneration device for selective catalytic reduction (SCR) denitration catalyst |
| CN204220155U (en) * | 2014-10-31 | 2015-03-25 | 浙江浙能催化剂技术有限公司 | A kind of device dredging honeycomb fashion regeneration SCR catalyst duct |
-
2014
- 2014-10-31 CN CN201410624242.8A patent/CN104368399B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579417A (en) * | 2018-05-18 | 2018-09-28 | 重庆市机电设计研究院 | Catalyst for treating waste gas automatic feed and dredging system |
| CN108579359A (en) * | 2018-05-18 | 2018-09-28 | 重庆市机电设计研究院 | Longitudinal traveling mechanism for catalyst automatic dredging exhaust-gas treatment |
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| CN104368399A (en) | 2015-02-25 |
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