CN220715163U - Cloth bag dust remover for purifying boiler flue gas - Google Patents
Cloth bag dust remover for purifying boiler flue gas Download PDFInfo
- Publication number
- CN220715163U CN220715163U CN202322371436.9U CN202322371436U CN220715163U CN 220715163 U CN220715163 U CN 220715163U CN 202322371436 U CN202322371436 U CN 202322371436U CN 220715163 U CN220715163 U CN 220715163U
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- Prior art keywords
- dust
- bag
- valve
- diaphragm
- flue gas
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Links
- 239000000428 dust Substances 0.000 title claims abstract description 72
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000003546 flue gas Substances 0.000 title claims abstract description 14
- 239000004744 fabric Substances 0.000 title abstract description 8
- 238000007664 blowing Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims 6
- 238000004378 air conditioning Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 15
- 230000008859 change Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to the technical field of dust collectors, and discloses a cloth bag dust collector for purifying boiler flue gas, which comprises an upper box body, wherein a middle box body is connected below the upper box body; along with the continuous increase of dust on the surface of a filter bag, the pressure difference between an inlet and an outlet of a dust remover rises along with the continuous increase of dust, when the resistance of the dust remover reaches a set value, a control system sends a dust removing instruction, the dust removing system starts to work, firstly, an electromagnetic valve is immediately opened after receiving a signal, so that compressed air in an air chamber at the upper part of a small diaphragm is discharged, an exhaust channel closed by the small diaphragm is opened due to the change of the stress at the two ends of the small diaphragm, the compressed air in the air chamber at the upper part of a large diaphragm is discharged from the channel, the stress at the two ends of the large diaphragm is changed, the large diaphragm acts, a closed output port is opened, the compressed air in an air bag is sprayed into the bag through an output pipe and a blowing pipe, dust removing is realized, after the control signal is stopped, the electromagnetic valve is closed, the small diaphragm and the large diaphragm are reset successively, and blowing is stopped, and after blowing is finished, the dust remover is restored to a filtering state.
Description
Technical Field
The utility model relates to the technical field of dust collectors, in particular to a cloth bag dust collector for purifying boiler flue gas.
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.
The relative position of the blowing hole and the mouth of the existing bag type dust collector is fixed and cannot be adjusted, so that the deviation of the blowing position is easy to cause, the blowing quality is affected, and the mouth of the filter bag is easy to break.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the cloth bag dust remover for purifying boiler flue gas, which has the advantages that the deviation phenomenon is improved, the injection quality is improved, and the problems that the relative positions of the injection hole and the bag mouth of the conventional bag dust remover are fixed and cannot be adjusted, so that the deviation of the injection position is easy to cause, the injection quality is influenced, and the bag mouth of the filter bag is easy to break are solved.
The utility model provides the following technical scheme: the utility model provides a sack cleaner for boiler flue gas purifies, includes the box, go up the box below and set up and be connected with well box, well box inside be provided with the filter bag, just the filter bag with well box is connected, it is connected with the pulse valve to go up the box top, the pulse valve top sets up and is connected with jetting device air pocket, it is provided with the poppet valve to go up the box inside, just the poppet valve with it is connected to go up the box, well box bottom sets up and is connected with the ash bucket, jetting device air pocket with the pulse valve junction is provided with the output tube. And the output tube with the pulse valve is connected, the pulse valve top is provided with and is connected with the little valve gap, little valve gap top is provided with and is connected with the solenoid valve, the inside top of pulse valve is provided with and is connected with little diaphragm, the inside below of pulse valve is provided with big diaphragm, just big diaphragm with the pulse valve is connected, big diaphragm inside is provided with the spring, just the spring with big diaphragm is connected.
Preferably, a sedimentation chamber is arranged in the middle box body, and sedimentation ash directly falls into the ash bucket.
Preferably, a blowing device is arranged in the upper box body, a movable nozzle is arranged on the blowing device, deviation of blowing positions is improved, and blowing quality is improved.
Preferably, the top end of the upper box body adopts an upper air inlet, and an upper air inlet end socket and a lower air inlet end socket in the electric dust remover technology are introduced, so that one flue elbow can be reduced, the air flow is uniformly distributed, and a guide plate in the middle of the air flow can promote sedimentation.
Preferably, the ash bucket adopts the design of high material level and high and low material level indicator, and low material level indicator is used for preventing the ash bucket from being emptied and leaking air, and high material level is used for controlling the action of the ash discharge valve, and high material level alarms, so that the safety of the dust remover is ensured.
Preferably, the poppet valves all adopt the ABB standard structure, and the bypass poppet valve will adopt a double-layer sealing form, ensuring zero leakage.
Compared with the prior art, the utility model has the following beneficial effects:
1. the dust on the surface of the filter bag is continuously increased, the pressure difference between the inlet and the outlet of the dust remover is increased along with the increase of the dust, when the resistance of the dust remover reaches a set value, a control system sends a dust removing instruction, the dust removing system starts to work, firstly, an electromagnetic valve is immediately opened after receiving a signal, so that compressed air in an air chamber at the upper part of a small diaphragm is discharged, an exhaust channel closed by the small diaphragm is opened due to the change of the stress at the two ends of the small diaphragm, the compressed air in the air chamber at the upper part of a large diaphragm is discharged from the channel, the stress at the two ends of the large diaphragm is changed, the large diaphragm acts, a closed output port is opened, the compressed air in an air bag is sprayed into the bag through an output pipe and a blowing pipe, dust removing is realized, after the control signal is stopped, the electromagnetic valve is closed, the small diaphragm and the large diaphragm are reset successively, and the blowing is stopped, and after the blowing is finished, the dust remover is restored to a filtering state.
2. The processing air quantity is large. The pulse bag type dust collector can process dust-containing gas with the smoke volume of millions of cubic meters per hour, and has higher filtering wind speed, thereby reducing the filtering area, ensuring compact equipment and saving investment. However, if the filtering wind speed is too high, the resistance will increase, and the filter bag will be broken and the efficiency will be reduced. Therefore, when the air quantity processed by the dust remover meets the dust removal object, the proper filtering air speed is determined according to the factors such as the ash removal mode, the dust property, the filter bag material and the like.
3. The submerged pulse valve is adopted, so that the valve is opened and closed rapidly. The self resistance is small, and good ash cleaning effect can be obtained for the filter bag with the length of 6-8 meters. The pulse valve is a key component of the pulse bag filter, and the service life of the pulse valve is the most concerned problem of users.
4. The filtration load is high. Because of the guarantee of powerful ash removal, even if the dust remover operates at a higher filtering wind speed, the resistance is not too high, generally 1200-1500 Pa, and compared with a back-blowing dust remover, the pulse bag dust remover has larger processing wind quantity with the same filtering area.
5. The dust concentration at the outlet is low. The pulse bag type dust collector has high dust collection efficiency, and the dust concentration of the outlet can completely meet the national specified emission standard, even reach below 20mg/m < 3 >.
6. The filter bag is convenient to check and replace. The filter bag is convenient to install and replace, and binding is not needed. The operator does not need to enter the box body, and the operation environment is good.
7. The resistance of the equipment is low. The resistance delta P of the dust remover is in direct proportion to the power of a fan, has direct relation with the energy consumption of the fan, and relates to the running cost problem of a dust removing system. The resistance of the dust remover is related to various factors such as the structural form of the body, the type of filter material, the dust property, the ash removing mode, the filtering wind speed, the gas humidity and the like. The resistance of the pulse bag type dust collector is controlled within the range of 1200-1500 Pa. Ensures that deposited dust is quickly and uniformly removed from the filter cloth, obtains good dust removing effect and consumes less power.
8. The equipment cost is low. Because the filtering load is high, the required filtering area is small, the structure is compact, and the occupied area is small.
9. Advanced control techniques. The control system taking the PLC as a host machine is used for controlling the operation parameters of the dust remover such as dust removal, inlet flue gas temperature, dust removal pressure and the like in real time, and has complete functions, stability and reliability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic diagram of a pulse valve structure according to the present utility model.
In the figure: 1. blowing a device air bag; 2. an upper case; 3. a filter bag; 4. a middle box body; 5. an ash bucket; 6. a poppet valve; 7. a pulse valve; 8. an electromagnetic valve; 9. a small valve cover; 10. a small membrane; 11. a spring; 12. an output pipe; 13. large diaphragms.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, a bag-type dust collector for purifying boiler flue gas comprises an upper box body 2, wherein a middle box body 4 is connected to the lower part of the upper box body 2, a filter bag 3 is arranged in the middle box body 4, the filter bag 3 is connected with the middle box body 4, a pulse valve 7 is connected to the top end of the upper box body 2, a jetting device air bag 1 is connected to the upper part of the pulse valve 7, a lifting valve 6 is arranged in the upper box body 2, the lifting valve 6 is connected with the upper box body 2, an ash bucket 5 is connected to the bottom end of the middle box body 4, and an output pipe 12 is arranged at the joint of the jetting device air bag 1 and the pulse valve 7. And the output pipe 12 is connected with the pulse valve 7, and pulse valve 7 top sets up and is connected with the little valve gap 9, and little valve gap 9 top sets up and is connected with solenoid valve 8, and pulse valve 7 inside top sets up and is connected with little diaphragm 10, and pulse valve 7 inside below is provided with big diaphragm 13, and big diaphragm 13 is connected with pulse valve 7, and big diaphragm 13 inside is provided with spring 11, and spring 11 is connected with big diaphragm 13.
Specifically, the interior of the middle box body 4 is provided with a sedimentation chamber, and sedimentation ash directly falls into an ash bucket.
Specifically, the upper box body 2 is internally provided with a blowing device, and the blowing device is provided with a movable nozzle, so that the deviation of the blowing position is improved, and the blowing quality is improved.
Specifically, the top end of the upper box body 2 adopts an upper air inlet, and an upper air inlet end socket and a lower air inlet end socket in the electric dust remover technology are introduced, so that one flue elbow can be reduced, the air flow is uniformly distributed, and a guide plate in the middle of the air flow can promote sedimentation.
Specifically, the ash bucket 5 adopts the design of a high-high material level and a high-low material level indicator, the low material level indicator is used for preventing the ash bucket from being emptied to leak air, the high material level is used for controlling the action of an ash discharge valve, the high material level gives an alarm, and the safety of the dust remover is ensured.
Specifically, the poppet valve 6 is all in the ABB standard structure, and the bypass poppet valve is in a double-layer sealing mode, so that zero leakage is ensured.
When the dust-containing gas is in operation, after entering from the air inlet at the lower part of the middle box body 4, under the action of the air flow distribution plate, the air flow upwards flows, the flow speed is reduced, part of large particle dust is separated from the air flow due to the action of gravity and falls into the ash bucket 5, the filtering load of the filter bag 3 is reduced, the dust-containing gas enters the middle box body 4 and is filtered and purified by the filter bag 3, the dust is blocked on the outer surface of the filter bag 3, the purified gas enters the upper box body through the mouth of the filter bag 3, and is discharged from the air outlet.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A sack cleaner for boiler flue gas purification, includes box (2), its characterized in that: the utility model discloses a high-pressure air-conditioning device, including upper box (2) and lower box, upper box (2) below is provided with and is connected with well box (4), well box (4) inside is provided with filter bag (3), just filter bag (3) with well box (4) are connected, upper box (2) top is provided with and is connected with pulse valve (7), pulse valve (7) top is provided with and is connected with jetting device air pocket (1), upper box (2) inside is provided with poppet valve (6), just poppet valve (6) with upper box (2) are connected, well box (4) bottom is provided with and is connected with ash bucket (5), jetting device air pocket (1) with pulse valve (7) junction is provided with output tube (12), just output tube (12) with pulse valve (7) are connected, pulse valve (7) top is provided with and is connected with little valve gap (9), little valve gap (9) top is provided with solenoid valve (8), pulse valve (7) inside top is provided with and is connected with poppet valve (10), inside diaphragm (7) are connected with upper box (2), well box (4) bottom is provided with ash bucket (5), pulse valve (13) are provided with big diaphragm (13), and the spring (11) is connected with the large diaphragm (13).
2. A bag-type dust collector for boiler flue gas purification as recited in claim 1, wherein: the interior of the middle box body (4) is provided with a sedimentation chamber, and sedimentation ash directly falls into an ash bucket.
3. A bag-type dust collector for boiler flue gas purification as recited in claim 1, wherein: the upper box body (2) is internally provided with a blowing device, the blowing device is provided with a movable nozzle, the deviation of the blowing position is improved, and the blowing quality is improved.
4. A bag-type dust collector for boiler flue gas purification as recited in claim 1, wherein: the top end of the upper box body (2) adopts an upper air inlet, and an upper air inlet end socket and a lower air inlet end socket in the electric dust remover technology are introduced, so that one flue elbow can be reduced, the air flow is uniformly distributed, and a guide plate in the middle of the air flow can promote sedimentation.
5. A bag-type dust collector for boiler flue gas purification as recited in claim 1, wherein: the ash bucket (5) adopts the design of a high-high material level and a high-low material level indicator, the low material level indicator is used for preventing the ash bucket from being emptied to leak air, the high material level is used for controlling the action of an ash discharge valve, the high material level gives an alarm, and the safety of the dust remover is ensured.
6. A bag-type dust collector for boiler flue gas purification as recited in claim 1, wherein: the poppet valves (6) all adopt ABB standard structures, and bypass poppet valves adopt double-layer sealing modes, so that zero leakage is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371436.9U CN220715163U (en) | 2023-09-01 | 2023-09-01 | Cloth bag dust remover for purifying boiler flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371436.9U CN220715163U (en) | 2023-09-01 | 2023-09-01 | Cloth bag dust remover for purifying boiler flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220715163U true CN220715163U (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322371436.9U Active CN220715163U (en) | 2023-09-01 | 2023-09-01 | Cloth bag dust remover for purifying boiler flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220715163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119926074A (en) * | 2025-02-25 | 2025-05-06 | 中国矿业大学 | An active pressure-equalizing, easy-to-clean, high-efficiency dust collector and dust cleaning method |
-
2023
- 2023-09-01 CN CN202322371436.9U patent/CN220715163U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119926074A (en) * | 2025-02-25 | 2025-05-06 | 中国矿业大学 | An active pressure-equalizing, easy-to-clean, high-efficiency dust collector and dust cleaning method |
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