CN108568168B - Multi-dimensional directional flexible gas-solid separation filter element regeneration system and method - Google Patents
Multi-dimensional directional flexible gas-solid separation filter element regeneration system and method Download PDFInfo
- Publication number
- CN108568168B CN108568168B CN201710138197.9A CN201710138197A CN108568168B CN 108568168 B CN108568168 B CN 108568168B CN 201710138197 A CN201710138197 A CN 201710138197A CN 108568168 B CN108568168 B CN 108568168B
- Authority
- CN
- China
- Prior art keywords
- pressure
- sampler
- value
- analysis processing
- ash
- 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.)
- Active
Links
- 238000011069 regeneration method Methods 0.000 title claims abstract description 14
- 238000000926 separation method Methods 0.000 title claims abstract description 14
- 239000007787 solid Substances 0.000 title claims abstract description 14
- 230000008929 regeneration Effects 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title abstract description 7
- 238000004458 analytical method Methods 0.000 claims abstract description 26
- 238000007664 blowing Methods 0.000 claims abstract description 24
- 239000000428 dust Substances 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000007405 data analysis Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 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
- B01D46/04—Cleaning filters
-
- 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
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to a multi-dimensional directional flexible gas-solid separation filter element regeneration system and a method, wherein the system comprises a gas collecting box, a pulse electromagnetic valve, a blowing pipe, a nozzle, a pressure sampler, an analysis processing center and a control center, wherein a data center can determine an area for ash removal operation according to data of the pressure sampler, and a command is issued to the area to start a corresponding blowing device for completing the directional ash removal operation.
Description
Technical Field
The invention relates to a multi-dimensional directional flexible gas-solid separation filter element regeneration system and a method, and belongs to the field of environmental protection technologies.
Background
In the field of bag dust removal, at present, a gas ash removal mode is generally adopted, gas in a gas collection box is driven into a filter bag from a filter bag opening in a pulse mode, and dust on the filter bag is separated from a bag body through gas pressure and vibration. The air collecting boxes are corresponding to the filter bags through the nozzles arranged on the single air pipeline, the filter bags are generally and uniformly arranged in parallel in the dust remover box body, so that a plurality of rows of filter bags are arranged, the corresponding air collecting boxes and the air pipeline are arranged, the air ash removing mode currently adopts a timing and quantitative working mode, when the fact that the dust removing efficiency is required to be reduced and the air ash removing is required to be carried out is detected, the controller can control the air collecting boxes to carry out ash removing operation line by line at a certain time interval, even if the filter bags in certain areas do not need to be cleaned currently, the ash removing operation of pulse blowing can be carried out passively, the length of the current dust removing filter bags is longer and longer, and the defects of the timing and quantitative ash removing mode are also revealed.
Firstly, the ash removal pressure, interval time and pulse wavelength which are manually set at present are all constant values, when ash removal blowing parameters required by a filter bag are calculated, the blowing air mass can reach the bottom of the filter bag and is usually set by taking the blowing air mass as a standard, so that the blowing air mass can be conveyed from an upper opening of the filter bag to the bottom of the filter bag, but the applicant finds that in order to convey the blowing air mass to the bottom of the filter bag, the air mass at a nozzle is required to have a higher flow velocity, so that the air mass passes through the upper opening of the filter bag, the speed of the upper section and the middle section of the filter bag is too high, the dust adsorbed at the upper opening of the filter bag can not be effectively removed, and the ash accumulation phenomenon at the upper opening of the filter bag is particularly serious. Along with the trend that the longer the filter bag is, the ash removal effect of the bottom of the filter bag is only considered in the ash removal pressure setting in the prior art, and the failure of the filter bag caused by the infiltration blockage at the upper middle part of the filter bag is one of the main reasons of the failure of the filter bag. Therefore, the current timing and quantitative ash removal blowing mode cannot effectively adjust the real-time change of the working condition of the dust remover.
Secondly, the dust removing equipment is customized equipment, and the performance of each set of equipment and the requirements on the ash removing system are not consistent. The dust-containing gas is introduced into the dust-removing equipment, so that dust is unevenly distributed in the equipment along with disordered diffusion of the dust-containing gas in the dust-removing equipment, and the working load of each filter bag is different. The prior art can only set working parameters according to expectations, even if the parameter setting is wrong, the working parameters cannot be found timely, and the targeted dust removal measures cannot be adopted for the region where dust is concentrated, so that the filter bags with smaller part of working loads are fatigued and damaged in advance by frequent blowing, the design service life of the filter bags is obviously seriously reduced by adopting the mode of indiscriminate blowing of all the filter bags at fixed interval time, the stable operation of dust removal equipment is influenced, and the operation and maintenance cost of the dust removal equipment is increased.
Disclosure of Invention
The purpose of the invention is that: aims to provide a multi-dimensional directional flexible gas-solid separation filter element regeneration system and a method, which can effectively improve the ash removal efficiency and prolong the service efficiency of a filter bag.
The multi-dimensional directional flexible gas-solid separation filter element regeneration system comprises a gas collecting tank, a pulse electromagnetic valve, a blowing pipe, a nozzle, a pressure sampler, an analysis processing center and a control center, wherein the analysis processing center receives data analysis of the pressure sampler and then issues a command to the control center to start a blowing device.
The pressure samplers are respectively arranged at different depths of high, medium and low.
The lower part of the gas collection box is also provided with a pressure sensor.
The multi-dimensional directional flexible gas-solid separation filter element regeneration method comprises the following steps:
Step one, the pressure sampler sends real-time pressure data to an analysis processing center, and if the pressure data exceeds a set pressure critical value, the analysis processing center sets a filter bag at the position of the pressure sampler as an ash removing operation area.
And step two, the analysis processing center further detects the values of a high-position pressure sampler, a middle-position pressure sampler and a low-position pressure sampler of the filter bag in the ash cleaning operation area, determines the blocking position of the filter bag in the area, calculates the air pressure and the pulse wavelength required for cleaning the blocking position of the filter bag and generates a control instruction.
And thirdly, the data center sends a control instruction to the control center, the control center starts a flow controller, so that gas reaches a gas collecting box and a blowing pipe which are connected with the ash removing area and reaches a preset pressure value, and then a pulse electromagnetic valve is started, so that ash removing gas clusters enter a filter bag from a nozzle, and ash removing operation is realized.
And fourthly, the analysis processing center detects the value of the pressure sampler in the ash removing operation area again, and if the value is lower than the pressure critical value, the ash removing operation is stopped.
If the pressure sampler value is still higher than the pressure critical value, repeating the steps three to four until the pressure sampler value is lower than the pressure critical value.
And fifthly, when the analysis processing center detects that the value of a certain pressure sampler in the preset time is continuously lower than the pressure critical value, executing the third to fourth steps.
In step four, the analysis processing center compares the detected high-level pressure sampler and the detected medium-level pressure sampler after the ash cleaning operation with the data before the ash cleaning to obtain a corresponding pressure difference, and judges whether the ash cleaning pressure and the ash cleaning pulse wavelength are reasonable or not when the ash cleaning is carried out by the previous injection according to the pressure difference value.
In the conventional blowing ash removal technology, when ash removal operation is performed, the blowing pressure and pulse wavelength of ash removal air flow only consider that the air flow can reach the bottom of a filter bag to be designed, but in actual working conditions, although the air flow can be blown to the bottom of the filter bag, the ash removal effect of the upper section and the middle section of the filter bag is good without the ash removal effect of the lower section of the filter bag in the filter bag mouth through which the air flow rapidly passes, and then the air blowing mode is needed to be modified in a targeted manner.
The filter bag which is not blown frequently is also blown according to the time limit, so that dust can be prevented from accumulating on the filter bag for a long time, the performance of the filter bag is reduced, and even the filter bag is damaged due to caking. Meanwhile, for the area lower than the pressure critical value for a long time, the problem that the actual working condition of the area cannot be reflected correctly due to damage of a sensor, so that dust accumulation of the filter bag is excessive and the effect of correctly removing dust cannot be obtained can be prevented.
If the pressure sampler value is still higher than the pressure critical value, repeating the steps three to four until the pressure sampler value is lower than the pressure critical value.
The system and the method adopted by the invention can monitor the dust concentration area in real time and carry out dust cleaning operation on the area in a targeted way, and through the system, the energy consumption of the traditional timing and quantitative dust cleaning operation can be effectively reduced, the dust cleaning operation is avoided from being repeated by cleaner filter bags, and the service life of the filter bags is prolonged. And meanwhile, the working efficiency of the whole dust removing equipment is also improved.
Drawings
FIG. 1 is a schematic diagram of a system of the present invention;
1-flow controller, 2-gas collecting box piping, 3-pulse solenoid valve, 4-gas collecting box, 5-jetting pipe, 6-nozzle, 7-clean room, 8-flower plate, 9-filter bag, 10-box, 11-pressure sampler, 12-pressure sensor.
Detailed Description
The following is a further detailed description of such multi-dimensional oriented flexible gas-solid separation cartridge regeneration systems and methods, taken in conjunction with the accompanying drawings and specific examples.
The multi-dimensional directional flexible gas-solid separation filter element regeneration system comprises a gas collecting tank, a pulse electromagnetic valve, a blowing pipe, a nozzle, a pressure sampler, an analysis processing center and a control center, wherein the analysis processing center receives data analysis of the pressure sampler and then issues a command to the control center to start a blowing device.
The pressure samplers are respectively arranged at different depths of high, medium and low.
The lower part of the gas collection box is also provided with a pressure sensor.
The multi-dimensional directional flexible gas-solid separation filter element regeneration method comprises the following steps:
Step one, the pressure sampler sends real-time pressure data to an analysis processing center, and if the pressure data exceeds a set pressure critical value, the analysis processing center sets a filter bag at the position of the pressure sampler as an ash removing operation area.
And step two, the analysis processing center further detects the values of a high-position pressure sampler, a middle-position pressure sampler and a low-position pressure sampler of the filter bag in the ash cleaning operation area, determines the blocking position of the filter bag in the area, calculates the air pressure and the pulse wavelength required for cleaning the blocking position of the filter bag and generates a control instruction.
And thirdly, the data center sends a control instruction to the control center, the control center starts a flow controller, so that gas reaches a gas collecting box and a blowing pipe which are connected with the ash removing area and reaches a preset pressure value, and then a pulse electromagnetic valve is started, so that ash removing gas clusters enter a filter bag from a nozzle, and ash removing operation is realized.
And fourthly, the analysis processing center detects the value of the pressure sampler in the ash removing operation area again, and if the value is lower than the pressure critical value, the ash removing operation is stopped.
If the pressure sampler value is still higher than the pressure critical value, repeating the steps three to four until the pressure sampler value is lower than the pressure critical value.
And fifthly, when the analysis processing center detects that the value of a certain pressure sampler in the preset time is continuously lower than the pressure critical value, executing the third to fourth steps.
In step four, the analysis processing center compares the detected high-level pressure sampler and the detected medium-level pressure sampler after the ash cleaning operation with the data before the ash cleaning to obtain a corresponding pressure difference, and judges whether the ash cleaning pressure and the ash cleaning pulse wavelength are reasonable or not when the ash cleaning is carried out by the previous injection according to the pressure difference value. For example, to clean the middle section, the pressure difference of the upper section or the lower section drops faster than the middle section, which indicates that the cleaning effect is best under the current pressure and pulse wavelength instead of the middle section. The analysis processing center automatically corrects two parameters of pressure and pulse wavelength in the next blowing.
Claims (1)
1. A multi-dimensional directional flexible gas-solid separation filter element regeneration method adopts a multi-dimensional directional flexible gas-solid separation filter element regeneration system, wherein the multi-dimensional directional flexible gas-solid separation filter element regeneration system comprises a gas collecting box, a pulse electromagnetic valve, a blowing pipe, a nozzle, a pressure sampler, an analysis processing center and a control center, wherein the analysis processing center receives data analysis of the pressure sampler and then issues a command to the control center to start a blowing device; the pressure sampler is respectively arranged at different depths of high, medium and low; the lower part of the gas collection box is provided with a pressure sensor;
the multi-dimensional directional flexible gas-solid separation filter element regeneration method comprises the following steps:
Step one, a pressure sampler sends real-time pressure data to an analysis processing center, and if the pressure data exceeds a set pressure critical value, the analysis processing center sets a filter bag at the position of the pressure sampler as an ash removing operation area;
Step two, the analysis processing center further detects the values of a high-position pressure sampler, a middle-position pressure sampler and a low-position pressure sampler of a filter bag in the ash cleaning operation area, determines the blocking position of the filter bag in the area, calculates the air pressure and the pulse wavelength required for cleaning the blocking position of the filter bag and generates a control instruction;
Step three, the data center sends a control instruction to the control center, the control center starts a flow controller, so that gas reaches a gas collecting box and a blowing pipe which are connected with a dust removing area and reaches a preset pressure value, and then a pulse electromagnetic valve is started, so that dust removing air flow enters a filter bag from a nozzle, and dust removing operation is realized;
Fourth, the analysis processing center detects the value of the pressure sampler in the ash removing operation area again, and if the value is lower than the pressure critical value, the ash removing operation is stopped; the analysis processing center compares the detected high-order pressure sampler and the detected medium-order pressure sampler after the ash cleaning operation with the data before the ash cleaning to obtain corresponding pressure difference, and judges whether the ash cleaning pressure and the ash cleaning pulse wavelength are reasonable or not when the ash cleaning is carried out in the previous time according to the pressure difference value;
if the pressure sampler value is still higher than the pressure critical value, repeating the third to fourth steps until the pressure sampler value is lower than the pressure critical value;
And fifthly, when the analysis processing center detects that the value of a certain pressure sampler in the preset time is continuously lower than the pressure critical value, executing the third step to the fourth step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138197.9A CN108568168B (en) | 2017-03-09 | 2017-03-09 | Multi-dimensional directional flexible gas-solid separation filter element regeneration system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138197.9A CN108568168B (en) | 2017-03-09 | 2017-03-09 | Multi-dimensional directional flexible gas-solid separation filter element regeneration system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108568168A CN108568168A (en) | 2018-09-25 |
| CN108568168B true CN108568168B (en) | 2024-08-13 |
Family
ID=63577802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710138197.9A Active CN108568168B (en) | 2017-03-09 | 2017-03-09 | Multi-dimensional directional flexible gas-solid separation filter element regeneration system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108568168B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532916A (en) * | 2008-03-14 | 2009-09-16 | 同方环境股份有限公司 | Device for measuring ash-removal effect of bag-type dust remover |
| CN205598838U (en) * | 2016-01-21 | 2016-09-28 | 东莞市益霆环保设备有限公司 | Integrated pulse bag filter for fire prevention and dust removal |
| CN207562541U (en) * | 2017-03-09 | 2018-07-03 | 上海境业环保能源科技股份有限公司 | A kind of various dimensions orient flexibility gas solid separation filter core regenerative system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100682797B1 (en) * | 2006-03-06 | 2007-02-15 | 주식회사 포스코 | Filter Bag Load Detection Device of Dust Collector |
| CN103182226A (en) * | 2013-04-09 | 2013-07-03 | 安徽省元琛环保科技有限公司 | Device for removing dust on surface of filer bag of single dust collector for welding robot |
| EP3096862B1 (en) * | 2014-01-21 | 2022-09-07 | Covanta Energy, LLC | System and method for automatic control of differential pressure in a baghouse system |
| CN205199169U (en) * | 2015-09-24 | 2016-05-04 | 贵州安泰再生资源科技有限公司 | Take pressure monitoring's gas tank pulse bag house dust collector device |
| CN106237739A (en) * | 2016-08-22 | 2016-12-21 | 中材装备集团有限公司 | A kind of sack cleaner experimental system and experimental technique thereof |
-
2017
- 2017-03-09 CN CN201710138197.9A patent/CN108568168B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532916A (en) * | 2008-03-14 | 2009-09-16 | 同方环境股份有限公司 | Device for measuring ash-removal effect of bag-type dust remover |
| CN205598838U (en) * | 2016-01-21 | 2016-09-28 | 东莞市益霆环保设备有限公司 | Integrated pulse bag filter for fire prevention and dust removal |
| CN207562541U (en) * | 2017-03-09 | 2018-07-03 | 上海境业环保能源科技股份有限公司 | A kind of various dimensions orient flexibility gas solid separation filter core regenerative system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108568168A (en) | 2018-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8894744B2 (en) | System and method of cleaning particulate collection devices used in a flue gas processing system | |
| CN107986048B (en) | Intelligent dust removal device of coal conveying system | |
| CN103691242A (en) | Central dust removal device and dust removal method | |
| CN105688530B (en) | A kind of more Differential pressure control methods of sack cleaner | |
| CN203750323U (en) | Pulse bag type warehouse roof dust remover | |
| CN104399337A (en) | Boiler chimney dust collection system and dust collection method | |
| CN202322879U (en) | Blockage clearing structure for pipeline segment from coal spraying dispenser to coal dust spray gun of blast furnace | |
| CN102114374B (en) | Shrink-resisting off-line pulse bag-type dust remover | |
| CN108568168B (en) | Multi-dimensional directional flexible gas-solid separation filter element regeneration system and method | |
| CN202909570U (en) | Movable bag type dust removal device | |
| CN215782309U (en) | Dust removal system | |
| CN204709989U (en) | Saving low pulse dust collector | |
| CN202654819U (en) | Dust remover | |
| CN204261500U (en) | A kind of airslide disintegrating mill pulsed filter core dust arrester | |
| CN202542223U (en) | Device for automatically eliminating dust bridging and arching | |
| CN110694395A (en) | Dust removal device and method for rod and wire continuous rolling unit | |
| CN207654854U (en) | It is sliced deduster anti-block apparatus | |
| CN105032060A (en) | Mobile ash cleaning device of bag type dust collector | |
| CN203342569U (en) | Dust collector provided with air box and pulse bags | |
| CN203281156U (en) | Low pressure bag filter | |
| CN202036879U (en) | Pulse drainage ash removal device of bag-type dust collector | |
| CN107456811A (en) | A kind of sack cleaner | |
| CN203990140U (en) | The loose spray of gas tank sack cleaner | |
| CN201832515U (en) | Soot cleaning device of dust removal system | |
| CN207562541U (en) | A kind of various dimensions orient flexibility gas solid separation filter core regenerative system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |