CN109985717A - A kind of safety system of high-efficiency pulverized coal preparation process - Google Patents
A kind of safety system of high-efficiency pulverized coal preparation process Download PDFInfo
- Publication number
- CN109985717A CN109985717A CN201711500829.8A CN201711500829A CN109985717A CN 109985717 A CN109985717 A CN 109985717A CN 201711500829 A CN201711500829 A CN 201711500829A CN 109985717 A CN109985717 A CN 109985717A
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- China
- Prior art keywords
- dilution
- coal
- grinding machine
- inert gas
- explosion
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000010790 dilution Methods 0.000 claims abstract description 19
- 239000012895 dilution Substances 0.000 claims abstract description 19
- 238000000227 grinding Methods 0.000 claims abstract description 19
- 239000011261 inert gas Substances 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 239000002817 coal dust Substances 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 235000013312 flour Nutrition 0.000 claims abstract description 4
- 238000004868 gas analysis Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 238000004880 explosion Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Natural products O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
Abstract
The present invention provides the safety system of high-efficiency pulverized coal preparation process a kind of, and including active protective system, passive protection system, coal mill deduster, inert gas extinguishment by dilution system and temperature point inductor: the active protective system includes the CO-O positioned at coal dust preparation system2On-line gas analysis system and CO2Automatic dilution fire extinguishing system carries out real-time monitoring to grinding machine outlet and inlet mouth, dust collector box body and ash bucket；The passive protection system includes the inert gas access port being designed on the explosion-proof valve and grinding machine being equipped at the top of the shell, grinding machine of flour mill host machine part, at powder concentrator shell and air inlet duct, is connected with inert gas extinguishment by dilution system.Actively protection carries out real-time monitoring to each system to the present invention, and carries out the starting of automatic safety device；Passive protection mainly carries out special protection to each equipment, has reached the safe operation of equipment；The system monitor set and dilution, cooling, flame failure protection interlock, and ensure that the safe operation of coal dust preparation system.
Description
Technical field
The invention belongs to coal industry fields, and in particular to a kind of safeguard protection system of high-efficiency pulverized coal preparation process
System.
Background technique
The method that the safeguard protection of existing powder-making technique mainly uses has the setting of explosion proof door, monitoring temperature, nitrogen device,
Temperature reaches set temperature and needs to stop production, and seriously affects the production efficiency of pulverized coal preparation system.
Summary of the invention
Aiming at the deficiencies in the prior art, the present invention provides the safeguard protection system of high-efficiency pulverized coal preparation process a kind of
System.
For above-mentioned purpose, technical solution of the present invention is as follows:
A kind of safety system of high-efficiency pulverized coal preparation process, including active protective system, passive protection system, coal mill
Deduster, inert gas extinguishment by dilution system and temperature point inductor:
The active protective system includes the CO-O positioned at coal dust preparation system2On-line gas analysis system and CO2It is automatic dilute
Fire extinguishing system is released, real-time monitoring is carried out to grinding machine outlet and inlet mouth, dust collector box body and ash bucket；
The passive protection system includes the explosion-proof valve and grinding machine being equipped at the top of the shell, grinding machine of flour mill host machine part
The inert gas access port being designed at upper, powder concentrator shell and air inlet duct, is connected with inert gas extinguishment by dilution system.
Further, the coal mill deduster grinds dedicated explosion-proof type high concentration bag dust collector using coal, and goes out in grinding machine
A set of explosion-proof valve is respectively mounted at air port and deduster air intake vent, to release the pressure generated when combustion explosion in time.
Further, the inert gas extinguishment by dilution system: nitrogen is used.
The utility model has the advantages that the present invention is provided with actively protection and two parts of passive protection；Actively protection to each system into
Row real-time monitoring, and carry out the starting of automatic safety device；Passive protection mainly carries out special protection to each equipment, has reached
To the safe operation of equipment；To achieve the purpose that improve production efficiency, the system monitor set and dilution, cooling, flame failure protection
Interlocking, ensure that the safe operation of coal dust preparation system.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Specific embodiment
The present invention is described below with reference to specific embodiments.It will be appreciated by those skilled in the art that these embodiments are only
For illustrating the present invention, do not limit the scope of the invention in any way.
A kind of safety system of high-efficiency pulverized coal preparation process, including active protective system, passive protection system, coal mill
Deduster, inert gas extinguishment by dilution system and temperature point inductor:
Active protective system includes the CO-O positioned at coal dust preparation system2On-line gas analysis system and CO2Automatic dilution goes out
Fiery system carries out real-time monitoring to grinding machine outlet and inlet mouth, dust collector box body and ash bucket；
Passive protection system includes on the explosion-proof valve and grinding machine being equipped at the top of the shell, grinding machine of flour mill host machine part,
The inert gas access port being designed at powder concentrator shell and air inlet duct is connected with inert gas extinguishment by dilution system.
The coal mill deduster grinds dedicated explosion-proof type high concentration bag dust collector using coal, and in grinding machine air outlet and dedusting
A set of explosion-proof valve is mounted at device air intake vent, respectively to release the pressure generated when combustion explosion in time.
As shown in Figure 1,2- run coal bin；3- discharger；4- coal conveyer belt；5- weighing belt；6- bucket elevator；7- precomminution
Pulverized coal bin；8- grinding batcher；9- vertical spindle coal pulveriser；10- fine coal collector；11- air-introduced machine；12- powder cabin；13- pressure gauge；
17- carbon-dioxide protecting；21- nitrogen distributor；
Temperature point inductor be mounted on run coal bin 02, bucket elevator 06, precomminution pulverized coal bin 07, work as local temperature
Meeting automatic start up system when occurring excessively high takes every cooling fire extinguishing predetermined set.
Vertical spindle coal pulveriser 09, fine coal collector 10 are respectively arranged with nitrogen protection device in powder cabin 12, take nitrogen filled protection.
The working principle of the invention:
Once CO, O in system2Content and temperature exceeding standard, CO2Extinguishment by dilution system starts dilution, cooling automatically.If being
When smoldering or burn in system, CO2Fire extinguishing system starts sprinkling fire extinguishing, dilution cooling automatically.
On grinding machine, inert gas access port is equipped at powder concentrator shell and air inlet duct, when system monitoring device issues dangerous letter
Number when, inert gas extinguishment by dilution system makes a response in time, is diluted cooling to Dangerous Place blowing inert gas or goes out.
This system is used the dedicated explosion-proof type high concentration bag dust collector of coal mill and is removed due to the inflammable and explosive characteristic of coal dust
In dirt device and grinding machine when combustion explosion occurs, in order to avoid the pressure that explosion time generates causes secondary hazards to equipment,
A set of explosion-proof valve is respectively mounted at grinding machine air outlet and deduster air intake vent, to release the pressure generated when combustion explosion in time.
While there has been shown and described that technical solution of the present invention, for the ordinary skill in the art, it is possible to understand that
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where not departing from the principle and spirit of the invention,
The scope of the present invention is defined by the appended.
Claims (3)
1. a kind of safety system of high-efficiency pulverized coal preparation process, it is characterised in that: including active protective system, passive protection
System, coal mill deduster, inert gas extinguishment by dilution system and temperature point inductor；
The active protective system includes the CO-O positioned at coal dust preparation system2On-line gas analysis system and CO2Automatic dilution goes out
Fiery system carries out real-time monitoring to grinding machine outlet and inlet mouth, dust collector box body and ash bucket；
The passive protection system includes on the explosion-proof valve and grinding machine being equipped at the top of the shell, grinding machine of flour mill host machine part,
The inert gas access port being designed at powder concentrator shell and air inlet duct is connected with inert gas extinguishment by dilution system.
2. the safety system of high-efficiency pulverized coal preparation process described in accordance with the claim 1, it is characterised in that: the coal abrades
Dirt device grinds dedicated explosion-proof type high concentration bag dust collector using coal, and is respectively mounted at grinding machine air outlet and deduster air intake vent
A set of explosion-proof valve, to release the pressure generated when combustion explosion in time.
3. the safety system of high-efficiency pulverized coal preparation process described in accordance with the claim 1, it is characterised in that: the indifferent gas
Body extinguishment by dilution system: nitrogen is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500829.8A CN109985717A (en) | 2017-12-31 | 2017-12-31 | A kind of safety system of high-efficiency pulverized coal preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500829.8A CN109985717A (en) | 2017-12-31 | 2017-12-31 | A kind of safety system of high-efficiency pulverized coal preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109985717A true CN109985717A (en) | 2019-07-09 |
Family
ID=67110276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711500829.8A Pending CN109985717A (en) | 2017-12-31 | 2017-12-31 | A kind of safety system of high-efficiency pulverized coal preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109985717A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086260A2 (en) * | 1982-02-15 | 1983-08-24 | Deutsche Babcock Aktiengesellschaft | Device for introducing coal in an heating chamber under high pressure |
| JPH0623296A (en) * | 1992-07-10 | 1994-02-01 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for production of pulverized coal |
| CN101570808A (en) * | 2009-05-31 | 2009-11-04 | 中冶京诚工程技术有限公司 | Dry converter coal gas dust-removal system and explosion protection device thereof |
| CN201631961U (en) * | 2010-04-10 | 2010-11-17 | 徐州中矿奥特麦科技有限公司 | Coal storage silo safety protection device |
| CN106439885A (en) * | 2016-09-28 | 2017-02-22 | 江苏省冶金设计院有限公司 | Raw coal direct blowing type pulverizing device |
| CN107131758A (en) * | 2017-05-05 | 2017-09-05 | 淮北矿业（集团）有限责任公司 | A kind of rotary kiln coal mill system |
| CN208865775U (en) * | 2017-12-31 | 2019-05-17 | 北京蓝亚能源科技有限公司 | A kind of safety system of high-efficiency pulverized coal preparation process |
-
2017
- 2017-12-31 CN CN201711500829.8A patent/CN109985717A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086260A2 (en) * | 1982-02-15 | 1983-08-24 | Deutsche Babcock Aktiengesellschaft | Device for introducing coal in an heating chamber under high pressure |
| JPH0623296A (en) * | 1992-07-10 | 1994-02-01 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for production of pulverized coal |
| CN101570808A (en) * | 2009-05-31 | 2009-11-04 | 中冶京诚工程技术有限公司 | Dry converter coal gas dust-removal system and explosion protection device thereof |
| CN201631961U (en) * | 2010-04-10 | 2010-11-17 | 徐州中矿奥特麦科技有限公司 | Coal storage silo safety protection device |
| CN106439885A (en) * | 2016-09-28 | 2017-02-22 | 江苏省冶金设计院有限公司 | Raw coal direct blowing type pulverizing device |
| CN107131758A (en) * | 2017-05-05 | 2017-09-05 | 淮北矿业（集团）有限责任公司 | A kind of rotary kiln coal mill system |
| CN208865775U (en) * | 2017-12-31 | 2019-05-17 | 北京蓝亚能源科技有限公司 | A kind of safety system of high-efficiency pulverized coal preparation process |
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