CN109603334A - A kind of high-temperature smoke dust removal method and device - Google Patents
A kind of high-temperature smoke dust removal method and device Download PDFInfo
- Publication number
- CN109603334A CN109603334A CN201910039887.8A CN201910039887A CN109603334A CN 109603334 A CN109603334 A CN 109603334A CN 201910039887 A CN201910039887 A CN 201910039887A CN 109603334 A CN109603334 A CN 109603334A
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- pipeline
- temperature
- control valve
- dust
- concentration
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- 239000000428 dust Substances 0.000 title claims abstract description 54
- 239000000779 smoke Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 238000000746 purification Methods 0.000 claims abstract description 22
- 239000003500 flue dust Substances 0.000 claims abstract description 21
- 238000000605 extraction Methods 0.000 claims abstract description 12
- 238000011897 real-time detection Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000013589 supplement Substances 0.000 claims description 7
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 12
- 239000007789 gas Substances 0.000 description 53
- 239000003517 fume Substances 0.000 description 27
- 230000000694 effects Effects 0.000 description 9
- 239000004744 fabric Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of high-temperature smoke dust removal methods; this method is to collect flue dust using dust gathering arrester; and flue dust is transported to by purification dust removal system by pipeline and is dusted; the concentration of inflammable substance in real-time detection pipeline; when the concentration is more than preset concentration range, the first protective gas is supplemented into pipeline with predetermined injection angle degree restores the concentration to preset concentration range；Temperature in pipeline described in real-time detection, when the temperature is more than preset temperature range, the second protective gas is supplemented into pipeline restores the temperature to preset temperature range；Expansion assembly is set on the pipeline to compensate the deformation of pipeline.The invention also discloses a kind of high-temperature smoke dust-extraction units corresponding with the method.The present invention can effectively prevent Pipeline damage, avoid flue dust from escaping, using safe.
Description
Technical field
The present invention relates to technical field of dust removal equipment, more specifically, it relates to a kind of high-temperature smoke dust removal method and dress
It sets.
Background technique
High-temperature smoke, the high temperature cigarette of generation can be generated in the processing of Metal Melting, chemical industry, pharmacy, casting or petroleum industry
Dirt can generate serious pollution to atmosphere, influence greatly, to administer in environmental requirement on the occupational health of operating environment, enterprise employee health peace
Under the premise of full consciousness improves, the flue dust generated to these industries is needed to be collected, to reduce pollution.
Conventional method collects flue dust using bell-type, is pipelined to purification dust removal system, high-temperature smoke is conveying
Pipeline shape and structure are produced bigger effect in the process, it is tight to may result in welding position desoldering cracking, pipeline among pipeline
It deforms again, flue dust escapes, and pollutes environment and field device；There are CO in pipeline may when the concentration of CO is greater than safe range
Explosion can be generated, safety accident is generated, the loss and personal injury for causing material to produce.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the above-mentioned deficiency of the prior art, the purpose of the present invention one is to provide one
Kind can effectively prevent Pipeline damage, avoid flue dust from escaping, using safe high-temperature smoke dust removal method.
The purpose of the present invention two, which is to provide, a kind of can effectively prevent Pipeline damage, avoids flue dust from escaping, using safe height
Warm dust collecting device for flue gas.
To achieve the goals above one, the present invention provides a kind of high-temperature smoke dust removal method, and this method is using dust gathering arrester
Flue dust is collected, and flue dust is transported to by purification dust removal system by pipeline and is dusted, the flammable object in real-time detection pipeline
The concentration of matter supplements the first protectiveness gas into pipeline when the concentration is more than preset concentration range with predetermined injection angle degree
Body restores the concentration to preset concentration range；Temperature in pipeline described in real-time detection, when the temperature is more than default temperature
When spending range, the second protective gas is supplemented into pipeline restores the temperature to preset temperature range；On the pipeline
Expansion assembly is set to compensate the deformation of pipeline.
To achieve the goals above two, the present invention provides a kind of high-temperature smoke dust-extraction unit, including dust gathering arrester, purifying and dedusting
System and the pipeline for connecting the dust gathering arrester, purification dust removal system, are successively arranged on the pipeline along its airflow direction
First control valve, CO concentration sensor, velocity sensor, temperature sensor, the second control valve, the CO concentration sensor, speed
Pipeline between degree sensor is equipped with for supplementing the first blowdown pipe of the first protective gas, on first blowdown pipe
Equipped with third control valve, expansion assembly is additionally provided on the pipeline；It further include being sensed respectively with the first control valve, CO concentration
The controller that device, velocity sensor, temperature sensor, the second control valve, third control valve are electrically connected.
As a further improvement, the angle between first blowdown pipe 4 and the airflow direction of the pipeline 3 is 30 °
~60 °.
Further, the pipeline between first blowdown pipe and velocity sensor is equipped with for supplementing the second protection
Property gas the second blowdown pipe, second blowdown pipe is equipped with the 4th control valve for being electrically connected the controller.
Further, the blower being electrically connected with the controller is additionally provided on second blowdown pipe.
Further, the pipeline is the structure that both ends are low, centre is high, including sequentially connected first vertical pipe, water
Flat pipe, the second vertical pipe.
Further, the upper end of the dust gathering arrester connects the input of first vertical pipe by first control valve
End, the CO concentration sensor, velocity sensor be set in the horizontal tube, and the temperature sensor is set to described the
In two vertical pipes, the input terminal of the purification dust removal system connects the output of second vertical pipe by second control valve
End.
Further, the expansion assembly includes the first expansion joint, the second expansion joint, and first expansion joint is set to institute
It states in the middle part of horizontal tube, the horizontal tube connects second vertical pipe by second expansion joint.
Further, second control valve, third control valve are regulating valve.
Beneficial effect
Compared with prior art, the present invention having the advantage that are as follows:, can effective compensation by the way that expansion assembly is arranged on pipeline
Additional stress caused by deformation and mechanical oscillation that pipeline is generated by temperature difference, to reduce the stress of tube wall and act on valve
Active force on part or supporting structure, can be avoided pipeline welding position cracking or pipeline is severely deformed and damage, and avoid generating
High-temperature smoke escapes, and flue dust is flown upward everywhere, pollutes atmospheric environment, it can be ensured that whole high-temperature smoke gases all pass through purifying and dedusting
System processing, qualified discharge；By CO concentration, fume gases temperature and the fume gases speed in real-time detection pipeline, work as institute
When stating CO concentration, fume gases temperature or fume gases speed more than preset range, first is supplemented into flue dust conveyance conduit and is protected
Shield property gas or natural air restore the CO concentration, fume gases temperature or fume gases speed to preset range, can have
Effect prevents CO excessive concentration and sets off an explosion, and avoids generating safety accident, causes the loss and personal injury of property, meanwhile, prevent
Only fume gases temperature or fume gases speed are excessively high and damage the cloth bag in purification dust removal system, influence purification dust removal system
Dust removing effects greatly reduce the cost of plant maintenance, and guarantee continuous production carries out, and improve production efficiency.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is circuit diagram of the invention.
Wherein: 1- dust gathering arrester, 2- purification dust removal system, 3- pipeline, the first blowdown pipe of 4-, the first vertical pipe of 5-, 6- are horizontal
Pipe, the second vertical pipe of 7-, the first expansion joint of 8-, the second expansion joint of 9-, 10- controller, the second blowdown pipe of 11-, KA1- first control
Valve processed, the second control valve of KA2-, KA3- third control valve, the 4th control valve of KA4-, S1-CO concentration sensor, S2- velocity pick-up
Device, S3- temperature sensor, M- blower.
Specific embodiment
The present invention is described further for specific embodiment in reference to the accompanying drawing.
Refering to fig. 1-2, a kind of high-temperature smoke dust removal method, this method are to collect flue dust using dust gathering arrester 1, and pass through pipeline
Flue dust is transported to purification dust removal system 2 by 3 to be dusted, the concentration of the inflammable substance in real-time detection pipeline 3, when concentration is super
When crossing preset concentration range, supplementing the first protective gas into pipeline 3 with predetermined injection angle degree makes concentration restore dense to presetting
Range is spent, in the present embodiment, inflammable substance CO, the first protective gas is anti-flammability gas, such as nitrogen, the first protection
Property gas may be compressed air, predetermined injection angle degree is the first protective gas injection direction and 3 interior air-flow direction of pipeline
Between angle, predetermined injection angle degree be 30 °~60 °, can make the first protective gas and flue dust pipeline 3 formed eddy flow,
Improve the dilution effect to inflammable substance；Temperature in real-time detection pipeline 3, when temperature is more than preset temperature range, to
The second protective gas of supplement restores temperature to preset temperature range, in the present embodiment, the second protective gas in pipeline 3
For natural air；The method also includes expansion assembly is arranged on pipeline 3 to compensate the deformation of pipeline 3.
A kind of high-temperature smoke dust-extraction unit, including dust gathering arrester 1, purification dust removal system 2 and by dust gathering arrester 1, purifying and dedusting
The pipeline 3 that system 2 connects is successively arranged first control valve KA1, CO concentration sensor S1, speed along its airflow direction on pipeline 3
Sensor S2, temperature sensor S3, the second control valve KA2, CO concentration sensor S1, on the pipeline 3 between velocity sensor S2
Equipped with the first blowdown pipe 4 for supplementing the first protective gas, the first blowdown pipe 4 is equipped with third control valve KA3, and first protects
Shield property gas is anti-flammability gas, and such as nitrogen, the first protective gas may be compressed air, the first blowdown pipe 4 and pipeline 3
Airflow direction between angle be 30 °~60 °, can make the first protective gas and flue dust pipeline 3 formed eddy flow, improve
To the dilution effect of CO, expansion assembly is additionally provided on pipeline 3；This dust-extraction unit further includes dense with first control valve KA1, CO respectively
Spend the control that sensor S1, velocity sensor S2, temperature sensor S3, the second control valve KA2, third control valve KA3 are electrically connected
Device 10 processed.
Pipeline 3 between first blowdown pipe 4 and velocity sensor S2 is equipped with for supplementing the second protective gas
Two blowdown pipes 11, the second blowdown pipe 11 are equipped with the 4th control valve KA4 for being electrically connected controller 10, and the second protective gas is
Natural air is additionally provided with the blower M being electrically connected with controller 10 on the second blowdown pipe 11, tonifying Qi efficiency can be improved.
Pipeline 3 is the structure that both ends are low, centre is high, including sequentially connected first vertical pipe 5, horizontal tube 6, second are vertically
The length of pipe 7, horizontal tube 6 is larger, and dust gathering arrester 1 is the structure that upper end is small, lower end is big, and the upper end of dust gathering arrester 1 passes through the first control
The input terminal of the first vertical pipe of valve KA1 connection 5, the lower end of dust gathering arrester 1 are connect with the container for generating flue dust, CO concentration sensor
S1, velocity sensor S2 are set in horizontal tube 6, wherein CO concentration sensor S1, can be as soon as possible close to the first vertical pipe 5
Detection enters the concentration of the CO in horizontal tube 6, and the first blowdown pipe 4 is close to CO concentration sensor S1, when CO concentration is dense more than presetting
When spending range, the first blowdown pipe 4 carries out the first protective gas of supplement to pipeline 3 to dilute CO concentration, prevents to explode hidden
Suffer from, preset concentration range is less than the explosion limit of CO, and velocity sensor S2 is used to detect the speed of fume gases, fume gases
Excessive velocities may be damaged the cloth bag in purification dust removal system, influence the dust removing effects of purification dust removal system, fume gases
When speed is more than pre-set velocity range, the second blowdown pipe 11 carries out supplement natural air to pipeline 3 to reduce the speed of fume gases
Degree, temperature sensor S3 be set to the second vertical pipe 7 in, temperature sensor S3 close to the second vertical pipe 7 output end, for detecting
The temperature of the fume gases to purification dust removal system 2 is exported, the temperature of fume gases is excessively high to may be damaged purification dust removal system
In cloth bag, and will lead to pipeline 3 overheat and damage, influence the dust removing effects of purification dust removal system, the temperature of fume gases
When more than preset temperature range, the second blowdown pipe 11 carries out supplement natural air to reduce the temperature of fume gases, only to pipeline 3
The input terminal for changing dust pelletizing system 2 passes through the output end of second the second vertical pipe of control valve KA2 connection 7.
Second control valve KA2, third control valve KA3 are regulating valve, in adjustable pipeline 3 flow of fume gases and
The flow for adjusting the first protective gas in the first blowdown pipe 4 can be with when the speed of fume gases is more than pre-set velocity range
Reduce the aperture of the second control valve KA2, the flow for reducing fume gases in pipeline 3 avoids to reduce the speed of fume gases
Cloth bag damage accident is generated, the loss and equipment for avoiding property stop accident, and the flow adjusted in the first blowdown pipe 4 can save
The first protective gas is saved, cost is reduced.
Expansion assembly includes the first expansion joint 8, the second expansion joint 9, and the first expansion joint 8 is set to 6 middle part of horizontal tube, horizontal tube
6 connect the second vertical pipe 7 by the second expansion joint 9, and the first expansion joint 8 is linear type expansion bellow, and the second expansion joint 9 is straight
Angle-style expansion bellow, the first expansion joint 8, the second expansion joint 9 both ends be equipped with connecting flange, the first expansion joint 8, second is swollen
Swollen section 9 can additional stress caused by effective compensation pipeline 3 deformation and mechanical oscillation that generate by temperature difference.
In the present embodiment, the first control valve KA1, the 4th control valve KA4 are Pneumatic butterfly valve, and CO concentration sensor S1 is
The CO sensor of model MIC-600-CO-A, temperature sensor S3 are the temperature sensor of model KZWB, velocity sensor
S2 is the hot type air velocity transducer of XZ4151D, and controller 10 is the PLC controller of model S7-200, further includes and controller
The EM232 analog input and output module of 10 connections, velocity sensor S2, temperature sensor S3, the second control valve KA2, third
Control valve KA3 is connected to controller 10 by EM232 analog input and output module.
The present invention, can the deformation that generates by temperature difference of effective compensation pipeline and machine by being arranged expansion assembly on pipeline
Additional stress caused by tool vibrates, thus reduce the stress of tube wall and act on the active force on valve member or supporting structure, it can
It avoids that pipeline welding position cracks or pipeline is severely deformed and damage, avoids generating high-temperature smoke and escape, flue dust is flown upward everywhere, dirt
Contaminate atmospheric environment, it can be ensured that whole high-temperature smoke gases all pass through purification dust removal system processing, qualified discharge；By examining in real time
CO concentration, fume gases temperature and fume gases speed in test tube road, when the CO concentration, fume gases temperature or dust
When body speed is more than preset range, the first protective gas or natural air are supplemented into flue dust conveyance conduit keeps the CO dense
Degree, fume gases temperature or fume gases speed are restored to preset range, can effectively prevent CO excessive concentration and set off an explosion, keep away
Exempt to generate safety accident, causes the loss and personal injury of property, meanwhile, prevent fume gases temperature or fume gases speed mistake
It is high and damage the cloth bag in purification dust removal system, influence the dust removing effects of purification dust removal system, greatly reduce plant maintenance at
This, guarantee continuous production carries out, and improves production efficiency.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, is not taking off
Under the premise of from structure of the invention, several modifications and improvements can also be made, these all will not influence the effect that the present invention is implemented
And patent practicability.
Claims (9)
1. a kind of high-temperature smoke dust removal method, this method is flue dust to be collected using dust gathering arrester (1), and pass through pipeline (3) for flue dust
Purification dust removal system (2) is transported to be dusted, it is characterised in that: the concentration of the inflammable substance in real-time detection pipeline (3),
When the concentration is more than preset concentration range, institute is made with the first protective gas of supplement in predetermined injection angle degree Xiang Guandao (3)
Concentration is stated to restore to preset concentration range；Temperature in pipeline described in real-time detection (3), when the temperature is more than preset temperature model
When enclosing, the second protective gas of supplement restores the temperature to preset temperature range in Xiang Guandao (3)；In the pipeline (3)
It is upper that expansion assembly is set to compensate the deformation of pipeline (3).
2. a kind of high-temperature smoke dust-extraction unit, including dust gathering arrester (1), purification dust removal system (2) and by the dust gathering arrester (1),
The pipeline (3) of purification dust removal system (2) connection, it is characterised in that: be successively arranged the along its airflow direction on the pipeline (3)
One control valve (KA1), CO concentration sensor (S1), velocity sensor (S2), temperature sensor (S3), the second control valve (KA2),
Pipeline (3) between the CO concentration sensor (S1), velocity sensor (S2) is equipped with for supplementing the first protective gas
The first blowdown pipe (4), first blowdown pipe (4) is equipped with third control valve (KA3), and the pipeline also sets on (3)
There is expansion assembly；It further include being passed respectively with the first control valve (KA1), CO concentration sensor (S1), velocity sensor (S2), temperature
The controller (10) that sensor (S3), the second control valve (KA2), third control valve (KA3) are electrically connected.
3. a kind of high-temperature smoke dust-extraction unit according to claim 2, it is characterised in that: first blowdown pipe (4) with
Angle between the airflow direction of the pipeline (3) is 30 °~60 °.
4. a kind of high-temperature smoke dust-extraction unit according to claim 2, it is characterised in that: first blowdown pipe (4)
Pipeline (3) between velocity sensor (S2) is equipped with the second blowdown pipe (11) for supplementing the second protective gas, institute
The second blowdown pipe (11) stated is equipped with the 4th control valve (KA4) for being electrically connected the controller (10).
5. a kind of high-temperature smoke dust-extraction unit according to claim 4, it is characterised in that: second blowdown pipe (11)
On be additionally provided with the controller (10) be electrically connected blower (M).
6. a kind of high-temperature smoke dust-extraction unit according to claim 2, it is characterised in that: the pipeline (3) is both ends
Low, intermediate high structure, including sequentially connected first vertical pipe (5), horizontal tube (6), the second vertical pipe (7).
7. a kind of high-temperature smoke dust-extraction unit according to claim 6, it is characterised in that: the upper end of the dust gathering arrester (1)
Connect the input terminal of first vertical pipe (5) by first control valve (KA1), the CO concentration sensor (S1),
Velocity sensor (S2) is set in the horizontal tube (6), and the temperature sensor (S3) is set to second vertical pipe (7)
Interior, the input terminal of the purification dust removal system (2) connects second vertical pipe (7) by second control valve (KA2)
Output end.
8. a kind of high-temperature smoke dust-extraction unit according to claim 6, it is characterised in that: the expansion assembly includes the
One expansion joint (8), the second expansion joint (9), first expansion joint (8) are set in the middle part of the horizontal tube (6), the horizontal tube
(6) second vertical pipe (7) is connected by second expansion joint (9).
9. a kind of high-temperature smoke dust-extraction unit according to claim 2-8 any one, it is characterised in that: described second
Control valve (KA2), third control valve (KA3) are regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039887.8A CN109603334A (en) | 2019-01-16 | 2019-01-16 | A kind of high-temperature smoke dust removal method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039887.8A CN109603334A (en) | 2019-01-16 | 2019-01-16 | A kind of high-temperature smoke dust removal method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109603334A true CN109603334A (en) | 2019-04-12 |
Family
ID=66016877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910039887.8A Pending CN109603334A (en) | 2019-01-16 | 2019-01-16 | A kind of high-temperature smoke dust removal method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109603334A (en) |
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| CN115401185A (en) * | 2021-05-27 | 2022-11-29 | 科华控股股份有限公司 | Explosion-proof vacuum suction casting system filled with compressed air and working method thereof |
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Application publication date: 20190412 |