CN219722221U - Cloth bag dust removal nitrogen protection device - Google Patents
Cloth bag dust removal nitrogen protection device Download PDFInfo
- Publication number
- CN219722221U CN219722221U CN202320470004.0U CN202320470004U CN219722221U CN 219722221 U CN219722221 U CN 219722221U CN 202320470004 U CN202320470004 U CN 202320470004U CN 219722221 U CN219722221 U CN 219722221U
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- bag
- valve
- type dust
- dust collector
- nitrogen
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 166
- 239000000428 dust Substances 0.000 title claims abstract description 115
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 70
- 239000004744 fabric Substances 0.000 title claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 68
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 26
- 239000003546 flue gas Substances 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to the technical field of bag-type dust collectors, in particular to a bag-type dust-collecting nitrogen protection device; the device comprises a nitrogen input pipeline, wherein the nitrogen input pipeline is connected with the top of the bag-type dust collector, one end, far away from the bag-type dust collector, of the nitrogen input pipeline is connected with a nitrogen main pipe, and a pneumatic regulating valve is connected to the nitrogen input pipeline; the top of the bag-type dust collector is connected with a methane detector, a carbon monoxide detector and a flame detector; the utility model has reliable use and convenient maintenance, detects the working condition in the bag-type dust collector in real time, and when detecting that the working condition is abnormal, then introduces nitrogen into the bag-type dust collector, can regulate the flow of the nitrogen, and can realize remote control.
Description
Technical Field
The utility model relates to the technical field of bag-type dust collectors, in particular to a bag-type dust-collecting nitrogen protection device.
Background
The bag-type dust collector is a dry dust filtering device. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, dust-containing gas is filtered by utilizing the filtering effect of fiber fabric, and when the dust-containing gas enters the bag type dust collector, dust with large particles and large specific gravity falls down due to the effect of gravity and falls into the ash bucket, and when the gas containing finer dust passes through the filter material, the dust is blocked, so that the gas is purified. It has the advantages of high dust removing efficiency, strong adaptability, no pollution and the like. However, the bag-type dust collector is extremely easy to catch fire, which causes fire accident or bag burning.
In order to overcome the defects, the traditional solution is to continuously charge nitrogen into the bin, so that energy waste can be caused by continuous nitrogen charging, and excessive nitrogen can overflow out of the bin, thereby threatening the lives of operators.
Disclosure of Invention
The utility model aims to provide a bag-type dust-removing nitrogen protection device which can prevent a bag-type dust remover from catching fire or exploding, and does not need to continuously charge nitrogen into the bag-type dust remover.
The utility model discloses a bag-type dust removing nitrogen protection device, wherein the bottom end of a bag-type dust remover is provided with a dust outlet, two sides of the bag-type dust remover are respectively communicated with a flue gas inlet channel and a dust removing flue gas outlet channel, one end of the dust removing flue gas outlet channel, which is far away from the bag-type dust remover, is connected with a fan, the dust removing flue gas outlet channel is connected with an air inlet of the fan, the air outlet of the fan is connected with a chimney, the dust removing nitrogen protection device comprises a nitrogen input pipeline, the nitrogen input pipeline is connected with the top of the bag-type dust remover, one end of the nitrogen input pipeline, which is far away from the bag-type dust remover, is connected with a nitrogen main pipe, and the nitrogen input pipeline is connected with a pneumatic regulating valve.
The nitrogen input pipeline realizes that nitrogen is introduced into the bag-type dust collector to protect the bag-type dust collector, and simultaneously the pneumatic regulating valve can realize the control of the flow of introduced nitrogen, so that the functions of controlling different nitrogen flows or cutting off nitrogen under different working conditions are achieved, and resources are saved.
Further, the nitrogen gas input pipeline on be connected with first stop valve and second stop valve, first stop valve is established on the nitrogen gas input pipeline between sack cleaner and pneumatic control valve, the second stop valve is established on the nitrogen gas input pipeline between pneumatic control valve and nitrogen gas house steward.
The first stop valve and the second stop valve form protection and control on-off of nitrogen gas to the pneumatic control valve at the air inlet end and the air outlet end of the pneumatic control valve, so that the control flexibility of the pneumatic control valve is further improved, when the pneumatic control valve fails and needs to be replaced, the normal work of the bag-type dust collector is not required to be stopped, and the pneumatic control valve can be replaced after the first stop valve and the second stop valve are closed.
Further, the top of the bag-type dust collector is connected with a methane detector, and a detection probe at the lower end of the methane detector is inserted into the bag-type dust collector.
The methane detector detects the concentration of methane gas in the bag-type dust collector, the methane detector can be connected into the control system when the methane detector detects that the concentration of methane in the bag-type dust collector exceeds a set value, then nitrogen is introduced into the bag-type dust collector, and the nitrogen is not introduced into the bag-type dust collector under normal working conditions.
Further, the top of the bag-type dust collector is connected with a carbon monoxide detector, and a detection probe at the lower end of the carbon monoxide detector is inserted into the bag-type dust collector.
The carbon monoxide detector detects the concentration of carbon monoxide gas in the bag-type dust collector, the carbon monoxide detector can be connected into the control system when the carbon monoxide detector detects that the concentration of carbon monoxide in the bag-type dust collector exceeds a set value, then nitrogen is introduced into the bag-type dust collector, and the nitrogen is not introduced into the bag-type dust collector under normal working conditions.
Further, the top of the bag-type dust collector is connected with a flame detector, and a detection probe at the lower end of the flame detector is inserted into the bag-type dust collector.
The flame detector can detect whether the inside of the bag-type dust collector has flame, the flame detector can be connected into the control system when in use, when the flame detector detects that the inside of the bag-type dust collector has flame, nitrogen is introduced into the bag-type dust collector, and nitrogen is not introduced into the bag-type dust collector under normal working conditions.
Further, the flue gas air inlet channel is connected with a first pneumatic cut-off valve, the dust-removing flue gas air outlet channel is connected with a second pneumatic cut-off valve, and the lower ash opening at the bottom end of the bag-type dust remover is connected with a third pneumatic cut-off valve.
Furthermore, the methane detector, the carbon monoxide detector and the flame detector are all in flange connection with the bag-type dust remover, so that the assembly and the disassembly are convenient.
Further, the methane detector, the carbon monoxide detector and the flame detector are connected to the DCS through cable signals, and the signals of the methane detector, the carbon monoxide detector and the flame detector are 4-20mA signals; the first stop valve, the second stop valve and the pneumatic regulating valve are connected to the DCS through cable signals; the first pneumatic cut-off valve, the second pneumatic cut-off valve and the third pneumatic cut-off valve are connected to the DCS through cable signals, and the first pneumatic cut-off valve, the second pneumatic cut-off valve and the third pneumatic cut-off valve are linked.
When the utility model is used, the first pneumatic cut-off valve, the second pneumatic cut-off valve and the third pneumatic cut-off valve can be set as an interlocking program with the methane detector, the carbon monoxide detector and the flame detector; when any one of the detection values of the methane detector and the carbon monoxide detector exceeds a set value or the flame detector detects flame, the first pneumatic cut-off valve, the second pneumatic cut-off valve and the third pneumatic cut-off valve are interlocked through a DCS, and the first pneumatic cut-off valve, the second pneumatic cut-off valve and the third pneumatic cut-off valve are automatically closed; the fan is automatically closed, the first stop valve, the second stop valve and the pneumatic adjusting valve are opened, and a central control person can manually adjust the pneumatic adjusting valve to adjust the nitrogen flow or the central control system automatically adjusts the flow of the pneumatic adjusting valve.
The beneficial effects of the utility model are as follows: the device comprises a nitrogen input pipeline, wherein the nitrogen input pipeline is connected with the top of the bag-type dust collector, one end, far away from the bag-type dust collector, of the nitrogen input pipeline is connected with a nitrogen main pipe, and a pneumatic regulating valve is connected to the nitrogen input pipeline; the top of the bag-type dust collector is connected with a methane detector, a carbon monoxide detector and a flame detector; the utility model has reliable use and convenient maintenance, detects the working condition in the bag-type dust collector in real time, and when detecting that the working condition is abnormal, then introduces nitrogen into the bag-type dust collector, can regulate the flow of the nitrogen, and can realize remote control; meanwhile, nitrogen is not required to be continuously filled into the bag-type dust collector, so that resources are saved, and the safety of workers is protected.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. a bag-type dust collector; 2. a flue gas inlet duct; 3. a first pneumatic shut-off valve; 4. a third pneumatic shut-off valve; 5. a methane detector; 6. a carbon monoxide detector; 7. a flame detector; 8. a pneumatic control valve; 9. a second pneumatic shut-off valve; 10. a nitrogen manifold; 11. a blower; 12. a chimney; 13. a nitrogen gas input pipe; 15. a dust-removing flue gas outlet duct; 16. a first stop valve; 17. and a second shut-off valve.
Detailed Description
As shown in fig. 1, in the bag-type dust-removing nitrogen protection device, a lower ash opening is formed in the bottom end of a bag-type dust remover 1, a flue gas inlet channel 2 and a dust-removing flue gas outlet channel 15 are respectively communicated with two sides of the bag-type dust remover 1, one end, far away from the bag-type dust remover 1, of the dust-removing flue gas outlet channel 15 is connected with a fan 11, the dust-removing flue gas outlet channel 15 is connected with an air inlet of the fan 11, an air outlet of the fan 11 is connected with a chimney 12, the bag-type dust-removing nitrogen protection device comprises a nitrogen input pipeline 13, the nitrogen input pipeline 13 is connected with the top of the bag-type dust remover 1, one end, far away from the bag-type dust remover 1, of the nitrogen input pipeline 13 is connected with a nitrogen main pipe 10, and a pneumatic regulating valve 8 is connected to the nitrogen input pipeline 13; the flue gas inlet duct 2 is connected with a first pneumatic cut-off valve 3, the dust-removing flue gas outlet duct 15 is connected with a second pneumatic cut-off valve 9, and a lower ash port at the bottom end of the bag-type dust remover 1 is connected with a third pneumatic cut-off valve 4; the nitrogen gas input pipeline 13 is connected with a first stop valve 16 and a second stop valve 17, the first stop valve 16 is arranged on the nitrogen gas input pipeline 13 between the bag-type dust collector 1 and the pneumatic regulating valve 8, and the second stop valve 17 is arranged on the nitrogen gas input pipeline 13 between the pneumatic regulating valve 8 and the nitrogen gas main pipe 10.
The top of the bag-type dust collector 1 is connected with a methane detector 5, and a detection probe at the lower end of the methane detector 5 is inserted into the bag-type dust collector 1; the top of the bag-type dust collector 1 is connected with a carbon monoxide detector 6, and a detection probe at the lower end of the carbon monoxide detector 6 is inserted into the bag-type dust collector 1; the top of the bag-type dust collector 1 is connected with a flame detector 7, and a detection probe at the lower end of the flame detector 7 is inserted into the bag-type dust collector 1; the methane detector 5, the carbon monoxide detector 6 and the flame detector 7 are all in flange connection with the bag-type dust collector 1, so that the assembly and the disassembly are convenient.
The methane detector 5, the carbon monoxide detector 6 and the flame detector 7 are connected to the DCS through cable signals, and the signals of the methane detector 5, the carbon monoxide detector 6 and the flame detector 7 are 4-20mA signals; the first stop valve 16, the second stop valve 17 and the pneumatic control valve are connected to the DCS through cable signals; the first pneumatic cut-off valve 3, the second pneumatic cut-off valve 9 and the third pneumatic cut-off valve 4 are connected to the DCS through cable signals, and the first pneumatic cut-off valve 3, the second pneumatic cut-off valve 9 and the third pneumatic cut-off valve 4 are in linkage.
In the embodiment, a DN25 pipeline is adopted as the nitrogen input pipeline, the nitrogen pressure of the nitrogen main pipe is required to be 0.6MPa, the set values of the methane detector 5 and the carbon monoxide detector 6 are 24PPm, and the nitrogen main pipe can be set according to the actual condition of the bag-type dust collector 1 in actual use.
The nitrogen gas input pipeline 13 realizes leading in nitrogen gas to the sack cleaner 1 and realizes the protection to the sack cleaner 1, and pneumatic governing valve 8 can realize the control to leading in nitrogen gas flow simultaneously, plays the function of controlling different nitrogen gas flows or cutting off nitrogen gas under different operating modes, resources are saved.
The first stop valve 16 and the second stop valve 17 form protection and control on-off of nitrogen gas to the pneumatic control valve 8 at the air inlet end and the air outlet end of the pneumatic control valve 8, so that the control flexibility of the utility model is further improved, when the pneumatic control valve 8 fails and needs to be replaced, the normal work of the bag-type dust collector 1 is not required to be stopped, and the pneumatic control valve 8 can be replaced only after the first stop valve 16 and the second stop valve 17 are closed.
The methane detector 5 detects the concentration of methane gas in the bag-type dust collector 1, the methane detector 5 can be connected into the control system when in use, and nitrogen is introduced into the bag-type dust collector 1 after the methane detector 5 detects that the concentration of methane in the bag-type dust collector 1 exceeds a set value, so that nitrogen is not introduced into the bag-type dust collector 1 under normal working conditions.
The carbon monoxide detector 6 detects the concentration of carbon monoxide gas in the bag-type dust collector 1, the carbon monoxide detector 6 can be connected into a control system when in use, and nitrogen is introduced into the bag-type dust collector 1 after the carbon monoxide detector 6 detects that the concentration of carbon monoxide in the bag-type dust collector 1 exceeds a set value, so that nitrogen is not introduced into the bag-type dust collector 1 under normal working conditions.
The flame detector 7 can detect whether the inside of the bag-type dust collector 1 has flame, the flame detector 7 can be connected into a control system when in use, when the flame detector 7 detects that the inside of the bag-type dust collector 1 has flame, nitrogen is introduced into the bag-type dust collector 1, and nitrogen is not introduced into the bag-type dust collector 1 under normal working conditions.
When the utility model is used, the first pneumatic cut-off valve 3, the second pneumatic cut-off valve 9 and the third pneumatic cut-off valve 4, the methane detector 5, the carbon monoxide detector 6 and the flame detector 7 can be set as an interlocking program; when any one of the detection values of the methane detector 5 and the carbon monoxide detector 6 exceeds a set value or the flame detector 7 detects flame, the first pneumatic cut-off valve 3, the second pneumatic cut-off valve 9 and the third pneumatic cut-off valve 4 are interlocked through the DCS, and the first pneumatic cut-off valve 3, the second pneumatic cut-off valve 9 and the third pneumatic cut-off valve 4 are automatically closed; the fan 11 is automatically closed, the first stop valve 16, the second stop valve 17 and the pneumatic control valve 8 are opened, and a central control person can manually adjust the pneumatic control valve 8 to realize the adjustment of the nitrogen flow or the central control system automatically adjusts the flow of the pneumatic control valve 8. When the detection signals of the methane detector 5, the carbon monoxide detector 6 and the flame detector 7 reach the qualified range, and the internal working condition of the bag-type dust collector 1 is proved to be normal, the first pneumatic cut-off valve 3, the second pneumatic cut-off valve 9 and the third pneumatic cut-off valve 4 are opened, the fan 11 is opened, the first cut-off valve 16, the second cut-off valve 17 and the pneumatic regulating valve 8 are closed, the bag-type dust collector 1 works normally, and the dust-removed smoke is discharged from the chimney 12 through the dust-removed smoke outlet duct 15.
Claims (8)
1. The utility model provides a sack dust removal nitrogen protection device, including sack cleaner (1), sack cleaner (1) bottom is equipped with down the ash mouth, and sack cleaner (1) both sides communicate respectively has flue gas air inlet duct (2) and dust removal flue gas air outlet duct (15), and the one end that sack cleaner (1) was kept away from in dust removal flue gas air outlet duct (15) is connected at fan (11), and dust removal flue gas air outlet duct (15) are connected at fan (11) air intake, and fan (11) air outlet is connected with chimney (12), its characterized in that: the nitrogen gas dust collector comprises a nitrogen gas input pipeline (13), wherein the nitrogen gas input pipeline (13) is connected with the top of the bag-type dust collector (1), one end, far away from the bag-type dust collector (1), of the nitrogen gas input pipeline (13) is connected with a nitrogen gas main pipe (10), and a pneumatic regulating valve (8) is connected to the nitrogen gas input pipeline (13).
2. The cloth bag dust removal nitrogen protection device according to claim 1, wherein: the nitrogen gas input pipeline (13) on be connected with first stop valve (16) and second stop valve (17), first stop valve (16) are established on nitrogen gas input pipeline (13) between sack cleaner (1) and pneumatic governing valve (8), and second stop valve (17) are established on nitrogen gas input pipeline (13) between pneumatic governing valve (8) and nitrogen gas house steward (10).
3. The cloth bag dust removal nitrogen protection device according to claim 2, wherein: the top of the bag-type dust collector (1) is connected with a methane detector (5), and a detection probe at the lower end of the methane detector (5) is inserted into the bag-type dust collector (1).
4. A bag house dust removal nitrogen protection device according to claim 3, characterized in that: the top of the bag-type dust collector (1) is connected with a carbon monoxide detector (6), and a detection probe at the lower end of the carbon monoxide detector (6) is inserted into the bag-type dust collector (1).
5. The cloth bag dust removal nitrogen protection device according to claim 4, wherein: the top of the bag-type dust collector (1) is connected with a flame detector (7), and a detection probe at the lower end of the flame detector (7) is inserted into the bag-type dust collector (1).
6. The cloth bag dust removal nitrogen protection device according to claim 5, wherein: the dust-removing flue gas dust-removing device is characterized in that the flue gas inlet duct (2) is connected with a first pneumatic cut-off valve (3), the dust-removing flue gas outlet duct (15) is connected with a second pneumatic cut-off valve (9), and a lower ash opening at the bottom end of the bag-type dust remover (1) is connected with a third pneumatic cut-off valve (4).
7. The cloth bag dust removal nitrogen protection device according to claim 6, wherein: the methane detector (5), the carbon monoxide detector (6) and the flame detector (7) are all in flange connection with the bag-type dust collector (1).
8. The cloth bag dust removal nitrogen protection device according to claim 6, wherein: the methane detector (5), the carbon monoxide detector (6) and the flame detector (7) are connected to the DCS through cable signals, and the signals of the methane detector (5), the carbon monoxide detector (6) and the flame detector (7) are 4-20mA signals; the first stop valve (16), the second stop valve (17) and the pneumatic regulating valve are connected to the DCS through cable signals; the first pneumatic shut-off valve (3), the second pneumatic shut-off valve (9) and the third pneumatic shut-off valve (4) are connected to the DCS through cable signals, and the first pneumatic shut-off valve (3), the second pneumatic shut-off valve (9) and the third pneumatic shut-off valve (4) are in linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320470004.0U CN219722221U (en) | 2023-03-13 | 2023-03-13 | Cloth bag dust removal nitrogen protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320470004.0U CN219722221U (en) | 2023-03-13 | 2023-03-13 | Cloth bag dust removal nitrogen protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219722221U true CN219722221U (en) | 2023-09-22 |
Family
ID=88026278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320470004.0U Active CN219722221U (en) | 2023-03-13 | 2023-03-13 | Cloth bag dust removal nitrogen protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219722221U (en) |
-
2023
- 2023-03-13 CN CN202320470004.0U patent/CN219722221U/en active Active
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