CN219663144U - Cloth bag dust remover for ash removal by double-gas blowing - Google Patents
Cloth bag dust remover for ash removal by double-gas blowing Download PDFInfo
- Publication number
- CN219663144U CN219663144U CN202223512444.2U CN202223512444U CN219663144U CN 219663144 U CN219663144 U CN 219663144U CN 202223512444 U CN202223512444 U CN 202223512444U CN 219663144 U CN219663144 U CN 219663144U
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- valve
- compressed air
- cloth bag
- nitrogen
- tank
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- 239000004744 fabric Substances 0.000 title claims abstract description 51
- 239000000428 dust Substances 0.000 title claims abstract description 33
- 238000007664 blowing Methods 0.000 title claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 116
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 58
- 239000007789 gas Substances 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 206010003497 Asphyxia Diseases 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The utility model provides a cloth bag dust remover for removing dust by double-gas blowing, which comprises a cloth bag bin, a compressed air tank, a filter bag and a nitrogen tank; the air outlet of the compressed air tank is communicated with the air inlet of the cloth bag bin; the air outlet of the nitrogen tank is communicated with the air inlet of the cloth bag bin; when the valve of the air outlet of the nitrogen tank is opened, the valve of the air outlet of the compressed air tank is closed so as to be used for inputting nitrogen into the cloth bag bin only; when the valve of the air outlet of the compressed air tank is opened, the valve of the air outlet of the nitrogen tank is closed so as to be used for inputting compressed air into the cloth bag bin only; the nitrogen and the compressed air are automatically and alternately controlled to be used, the compressed air is only input in advance during regular overhaul or emergency overhaul operation, and nitrogen media are taken as the main materials in the normal use process, so that the harm to a dust removal system and operators caused by adverse factors of moisture and nitrogen asphyxia of the compressed air is eliminated, the contradiction between supply and demand of the two media is solved, the balanced use of the media is achieved, and the gas cost is reduced.
Description
Technical Field
The utility model relates to the technical field of bag-type dust collectors, in particular to a bag-type dust collector for dust removal by double-gas blowing.
Background
The blowing medium used for the bag-type dust collector in the metal smelting industry mostly uses compressed air, and in the time of heavy fog or wet weather in autumn and winter, the air is sucked into the compressor and simultaneously the moisture in the air is sucked into the compressor and then is sent to each user point, and the sucked moisture is condensed and separated in the compressed air tank to cause a large amount of accumulated water; frequent water drainage is required for operators, and the workload is high; in the freezing season, accumulated water is often frozen, so that the pipeline is frozen to crack and leak air, and a user point cannot normally use the pipeline; moisture in the system can also cause the long-term moist internal environment of the pipeline to generate large-area rust so as to form rust points; rust points in the system are easy to fall off under the impact of high-speed air flow, and the pneumatic elements are often clamped and worn, so that the normal operation of the pneumatic elements is affected.
A large amount of nitrogen byproducts are generated simultaneously in the oxygen production process, and because nitrogen has the choking dangerous characteristic, the nitrogen is only used at the isolation sealing, water film atomization, pipeline blowing and gas pressure maintaining parts of a gas system, so that the application of a nitrogen medium in other areas is limited, a large amount of nitrogen is diffused, and the cost of the nitrogen medium is wasted.
The compressed air medium has strong universality and can be reused, so that the environment is not polluted, the compressed air medium has wide application in medium use and is frequently in shortage; the difference of the dosage of the two media in production and the defects of the media themselves cause the following problems in the use process: 1) Two mediums have the cost waste phenomenon: 2) Harm caused by compressed air moisture: a. the humidity in autumn and winter is high, so that internal ponding and frost crack accidents are easy to occur; b. the operators drain water frequently, so that the labor intensity is high; c. the pneumatic system is easy to fail; d. the service life of the pneumatic element is shortened; e. the cloth bag is easy to be hardened by condensation, and the dust removal effect is affected; f. the power consumption cost of the dust removing fan and the cloth bag replacement cost are increased.
At present, the technical problems to be solved are as follows:
a. the problem of water accumulation caused by humid air in autumn and winter in the system is solved, and leakage accidents caused by freezing of pipelines are avoided;
b. the water problem in the tank body is eliminated, the water draining operation is reduced, and the labor intensity is reduced;
c. the pipeline is prevented from being corroded, the phenomenon that pneumatic elements are blocked or stuck caused by rust point falling is avoided, the faults of a pneumatic system are reduced, and the service life of the elements is prolonged;
d. the hardening phenomenon caused by the dewing of the cloth bag is avoided, the ventilation efficiency of the cloth bag is improved, the pressure difference is reduced, the dust removing effect of a user is ensured, and the power consumption cost caused by heating and the speed rising of the fan is reduced;
e. solves the problems of shortage of compressed air and diffusion of nitrogen, ensures that two media reach the use balance of production, and reduces the gas cost loss.
Disclosure of Invention
The utility model aims to provide a cloth bag dust remover for removing ash by double-gas blowing.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the cloth bag dust remover comprises a cloth bag bin and a compressed air tank, wherein a filter bag for removing dust is arranged in the cloth bag bin, and the cloth bag dust remover also comprises a nitrogen tank;
the air outlet of the compressed air tank is communicated with the air inlet of the cloth bag bin through a pipeline;
and an air outlet of the nitrogen tank is communicated with an air inlet of the cloth bag bin through a pipeline.
Preferably, when the valve of the air outlet of the nitrogen tank is opened, the valve of the air outlet of the compressed air tank is closed so as to be used for inputting nitrogen into the cloth bag bin only;
when the valve of the air outlet of the compressed air tank is opened, the valve of the air outlet of the nitrogen tank is closed so as to be used for inputting compressed air into the cloth bag bin only.
Preferably, a first electric switch valve, a first electric relief valve, a first electric contact pressure gauge and a second electric switch valve are sequentially arranged on a pipeline which is used for communicating the air outlet of the compressed air tank with the air inlet of the cloth bag bin in the direction from the compressed air tank to the cloth bag bin;
a third electric switch valve, a second electric relief valve, a second electric contact pressure gauge and a fourth electric switch valve are sequentially arranged on a pipeline which is used for communicating the air outlet of the nitrogen tank with the air inlet of the cloth bag bin in the direction from the nitrogen tank to the cloth bag bin;
the air outlet of the second electric switch valve is directly communicated with the air outlet of the fourth electric switch valve through a pipeline.
Preferably, when the ash is removed by nitrogen injection:
the third electric switch valve and the fourth electric switch valve are in an open state, and the second electric relief valve is in a closed state;
the first electric switch valve and the second electric switch valve are in a closed state, and the first electric relief valve is in a closed state.
Preferably, when the compressed air is blown to clean the ash:
the first electric switch valve and the second electric switch valve are in an open state, and the first electric relief valve is in a closed state;
the third electric switch valve and the fourth electric switch valve are in a closed state, and the second electric relief valve is in a closed state.
Compared with the prior art, the utility model has the following beneficial technical effects:
(1) The utility model combines the advantages and disadvantages of two media of compressed air and nitrogen and the contradiction of the current media in supply and demand, adopts reasonable technical measures to automatically and alternately control the nitrogen and the compressed air according to the time required by operation, only inputs the compressed air media in advance during regular maintenance or emergency maintenance operation, and takes the nitrogen media as the main material in the normal use process, so as to eliminate the harm of adverse factors of moisture and nitrogen choking in the compressed air to a dust removal system and operators, solve the contradiction of the supply and demand of the two media, achieve the balance use of the media and reduce the gas cost;
(2) The complementary use of the two media and the reasonable application of an automatic control mode solve the problem of unbalance of compressed air and nitrogen media, and reduce the processing cost of production gas;
(3) The nitrogen replaces the long-time operation of the compressed air, so that the air is isolated, the corrosion phenomenon in the pipeline is avoided, the blocking and abrasion phenomenon of the pneumatic element after rust spots fall off is eliminated, the service life of the pneumatic element is prolonged, and the fault of a blowing system is avoided;
(4) After the nitrogen replaces the compressed air medium, the water problem in the tank body thoroughly disappears, frequent water draining operation of operators is avoided, and the operation intensity is reduced;
(5) The problem of water accumulation at the bottom of the tank body is thoroughly treated, and the pipeline freezing leakage accidents caused by cold weather in winter are avoided;
(6) The hardening phenomenon caused by the dewing of the cloth bag is thoroughly solved, the ventilation efficiency of the cloth bag is improved, the pressure difference of the dust remover is reduced, and the dust removing effect of a user is ensured.
Drawings
FIG. 1 is a schematic diagram of a dual-gas blowing ash removal bag-type dust collector;
in the figure: 1 a cloth bag bin in a cloth bag dust remover;
2 a compressed air tank, 201 a first electric switch valve, 202 a second electric switch valve, 203 a first electric relief valve, 204 a first electric contact pressure gauge;
3 nitrogen tank, 301 third electric switch valve, 302 fourth electric switch valve, 303 second electric bleed valve, 304 second electric contact pressure gauge.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are 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.
As shown in fig. 1: a cloth bag bin 1 in the cloth bag dust remover; a compressed air tank 2, a first electric switching valve 201, a second electric switching valve 202, a first electric relief valve 203, a first electric contact pressure gauge 204; a nitrogen tank 3, a third electric switch valve 301, a fourth electric switch valve 302, a second electric relief valve 303, a second electric contact pressure gauge 304.
The utility model provides a dual-gas blowing ash removal cloth bag dust remover, which comprises a cloth bag bin 1 and a compressed air tank 2, wherein a filter bag for removing dust is arranged in the cloth bag bin 1, and the cloth bag dust remover also comprises a nitrogen tank 3;
the air outlet of the compressed air tank 2 is communicated with the air inlet of the cloth bag bin 1 through a pipeline;
the air outlet of the nitrogen tank 3 is communicated with the air inlet of the cloth bag bin 1 through a pipeline.
In one embodiment of the present utility model, when the valve of the air outlet of the nitrogen tank 3 is opened, the valve of the air outlet of the compressed air tank 2 is closed for inputting nitrogen only into the bag house 1;
when the valve of the air outlet of the compressed air tank 2 is opened, the valve of the air outlet of the nitrogen tank 3 is closed for inputting compressed air only into the cloth bag bin 1.
In one embodiment of the utility model, a first electric switch valve 201, a first electric relief valve 203, a first electric contact pressure gauge 204 and a second electric switch valve 202 are sequentially arranged on a pipeline which is used for communicating the air outlet of the compressed air tank 2 and the air inlet of the cloth bag bin 1 in the direction from the compressed air tank 2 to the cloth bag bin 1;
a third electric switch valve 301, a second electric relief valve 303, a second electric contact pressure gauge 304 and a fourth electric switch valve 302 are sequentially arranged on a pipeline which is communicated with the air outlet of the nitrogen tank 3 and the air inlet of the cloth bag bin 1 in the direction from the nitrogen tank 3 to the cloth bag bin 1;
the air outlet of the second electric switch valve is directly communicated with the air outlet of the fourth electric switch valve through a pipeline.
In one embodiment of the utility model, when the nitrogen is blown to clean the ash:
the third electric switching valve 301 and the fourth electric switching valve 302 are in an open state, and the second electric relief valve 303 is in a closed state;
the first electric switching valve 201 and the second electric switching valve 202 are in a closed state, and the first electric relief valve 203 is in a closed state.
In one embodiment of the utility model, when the compressed air is blowing the ash:
the first electric switching valve 201 and the second electric switching valve 202 are in an open state, and the first electric relief valve 203 is in a closed state;
the third electric switching valve 301 and the fourth electric switching valve 302 are in a closed state, and the second electric relief valve 303 is in a closed state.
The utility model provides a cloth bag dust remover for removing ash by double-gas blowing, which adopts the working principle that:
(1) Working principle of nitrogen blowing ash removal:
the method comprises the steps that during normal operation of the bag-type dust collector, blowing medium is mainly nitrogen, a third electric switch valve 301 and a fourth electric switch valve 302 which are arranged on an outlet pipeline of a nitrogen tank 3 are in an open state, 1 second electric diffusion valve 303 is in a closed state, and the pressure of a nitrogen electric contact pressure gauge is set to be within a pressure range of 0.15-0.10 MPa;
during the gas supply time of the nitrogen medium, the linkage between the second electric contact pressure gauge and the second electric relief valve 303 is in a released state;
the first electric switch valve 201 and the second electric switch valve 202 on the outlet pipeline of the compressed air tank 2 are in a closed state, 1 first electric relief valve 203 is in a closed state, the upper limit pressure and the lower limit pressure of the first electric contact pressure gauge 204 are set in a pressure range of 0.15MPa and 0.10MPa, and the first electric contact pressure gauge 204 and the first electric relief valve 203 are in a linkage state;
if the pressure between the first electric switch valve 201 and the second electric switch valve 202 of the outlet pipe, which is caused by the internal leakage of the second electric switch valve 202, reaches the upper limit pressure of 0.15MPa, the upper computer displays that the upper limit pressure exceeds the highest set pressure and gives out an audible and visual alarm prompt, the first electric discharge valve 203 is opened for discharging, so that nitrogen media is prevented from being in series with a compressed air media system, and the use safety of other users of the compressed air system is ensured;
(2) Working principle of compressed air blowing ash removal:
the method comprises the steps that a medium is sprayed into compressed air in 2 hours before overhauling or during temporary overhauling of the bag-type dust collector, a first electric switch valve 201 and a second electric switch valve 202 on an outlet pipeline of a compressed air tank 2 are in an open state, and the nitrogen concentration of positions such as an inner ash bin and an inspection hole of the bag-type dust collector is diluted to be reduced to 78% of air content;
the first electric relief valve 203 is in a closed state, the upper and lower limit pressures of the first electric contact pressure gauge 204 are set to be within the pressure ranges of 0.15MPa and 0.10MPa, and the linkage between the first electric contact pressure gauge 204 and the first electric relief valve 203 is in a released state in the time of using the compressed air medium;
the third electric switch valve 301 and the fourth electric switch valve 302 on the outlet pipeline of the nitrogen tank 3 are in a closed state, 1 second electric relief valve 303 is in a closed state, the upper limit pressure and the lower limit pressure of the second electric contact pressure gauge are set in a pressure range of 0.15MPa and 0.10MPa, and the second electric contact pressure gauge and the second electric relief valve 303 are in a linkage state;
if the pressure of the outlet pipeline between the third electric switch valve 301 and the fourth electric switch valve 302 reaches the upper limit pressure of 0.15MPa due to the internal leakage of the third electric switch valve 301, the upper computer displays that the upper limit pressure exceeds the highest set pressure and gives out an audible and visual alarm prompt, and the second electric discharge valve 303 is opened to discharge, so that compressed air medium is prevented from being led into a nitrogen medium system, the use safety of other users of the nitrogen system is ensured, and the purity of nitrogen is not influenced.
The method and the device which are not described in detail in the utility model are all the prior art and are not described in detail.
The above description of the embodiments is only for aiding in the understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (5)
1. The cloth bag dust remover comprises a cloth bag bin and a compressed air tank, wherein a filter bag for removing dust is arranged in the cloth bag bin;
the air outlet of the compressed air tank is communicated with the air inlet of the cloth bag bin through a pipeline;
and an air outlet of the nitrogen tank is communicated with an air inlet of the cloth bag bin through a pipeline.
2. The dual gas injection ash removal bag-type dust collector according to claim 1, wherein when the valve of the air outlet of the nitrogen tank is opened, the valve of the air outlet of the compressed air tank is closed for inputting nitrogen only into the bag bin;
when the valve of the air outlet of the compressed air tank is opened, the valve of the air outlet of the nitrogen tank is closed so as to be used for inputting compressed air into the cloth bag bin only.
3. The dual-gas blowing ash removal bag-type dust collector according to claim 1 is characterized in that a pipeline for communicating an air outlet of a compressed air tank with an air inlet of a bag bin is sequentially provided with a first electric switch valve, a first electric relief valve, a first electric contact pressure gauge and a second electric switch valve in the direction from the compressed air tank to the bag bin;
a third electric switch valve, a second electric relief valve, a second electric contact pressure gauge and a fourth electric switch valve are sequentially arranged on a pipeline which is used for communicating the air outlet of the nitrogen tank with the air inlet of the cloth bag bin in the direction from the nitrogen tank to the cloth bag bin;
the air outlet of the second electric switch valve is directly communicated with the air outlet of the fourth electric switch valve through a pipeline.
4. A dual gas blown ash removal bag house as defined in claim 3 wherein, when nitrogen is blown to remove ash:
the third electric switch valve and the fourth electric switch valve are in an open state, and the second electric relief valve is in a closed state;
the first electric switch valve and the second electric switch valve are in a closed state, and the first electric relief valve is in a closed state.
5. A dual gas blown ash removal bag house as defined in claim 3 wherein, when the compressed air is blown ash removal:
the first electric switch valve and the second electric switch valve are in an open state, and the first electric relief valve is in a closed state;
the third electric switch valve and the fourth electric switch valve are in a closed state, and the second electric relief valve is in a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223512444.2U CN219663144U (en) | 2022-12-28 | 2022-12-28 | Cloth bag dust remover for ash removal by double-gas blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223512444.2U CN219663144U (en) | 2022-12-28 | 2022-12-28 | Cloth bag dust remover for ash removal by double-gas blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219663144U true CN219663144U (en) | 2023-09-12 |
Family
ID=87896270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223512444.2U Active CN219663144U (en) | 2022-12-28 | 2022-12-28 | Cloth bag dust remover for ash removal by double-gas blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219663144U (en) |
-
2022
- 2022-12-28 CN CN202223512444.2U patent/CN219663144U/en active Active
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