CN204246978U - Dust arrester - Google Patents
Dust arrester Download PDFInfo
- Publication number
- CN204246978U CN204246978U CN201420740465.6U CN201420740465U CN204246978U CN 204246978 U CN204246978 U CN 204246978U CN 201420740465 U CN201420740465 U CN 201420740465U CN 204246978 U CN204246978 U CN 204246978U
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- Prior art keywords
- air duct
- deduster
- dedust air
- purging
- dust arrester
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- 239000000428 dust Substances 0.000 title claims abstract description 93
- 238000010926 purge Methods 0.000 claims abstract description 97
- 239000007789 gas Substances 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 32
- 229910052757 nitrogen Inorganic materials 0.000 description 16
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000002817 coal dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000002269 spontaneous effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Abstract
The utility model provides a kind of dust arrester.The deduster that this dust arrester comprises dedust air duct and is connected with dedust air duct, dust arrester also comprises: purging system, and purging system is connected with dedust air duct, and passes into purge gas in dedust air duct; Tracing system, tracing system is arranged on outside dedust air duct and deduster, and heats dedust air duct and deduster.This dust arrester can prevent laying dust.
Description
Technical field
The utility model relates to cleaner field, in particular to a kind of dust arrester.
Background technology
Current state internal bag type concentrated dust-removing is extensive in sector applications such as coal, chemical industry, agriculturals, but is difficult to run at extremely frigid zones winter (0 ~-55 DEG C), especially for brown coal processing industry, adopts concentrated dust-removing with certain risk:
1) raw coal powder or dried coal dust accumulate easy spontaneous combustion in dedust air duct, dust-removing box, there is potential safety hazard.
2) because winter temperature is lower, during dust pelletizing system outdoor arrangement, moist steam easily condenses in inside, causes coal dust wall built-up and deduster to stick with paste the problem such as bag, blanking blocking.
Utility model content
Main purpose of the present utility model is to provide a kind of dust arrester, to work the problem of easy laying dust to solve deduster of the prior art in cold environment.
To achieve these goals, according to an aspect of the present utility model, provide a kind of dust arrester, the deduster that dust arrester comprises dedust air duct and is connected with dedust air duct, dust arrester also comprises: purging system, purging system is connected with dedust air duct, and passes into purge gas in dedust air duct; Tracing system, tracing system is arranged on outside dedust air duct and deduster, and heats dedust air duct and deduster.
Further, purging system comprises purging house steward and purges tube connector, purges in house steward and passes into purge gas, purges tube connector and is connected between purging house steward and dedust air duct, and is introduced in dedust air duct by the purge gas purged in house steward.
Further, it is multiple for purging tube connector, and arranges at interval successively along the length direction of dedust air duct.
Further, dedust air duct has at least one bending segment, and the equal correspondence of each bending segment is provided with purging tube connector.
Further, the first control valve tube connector being provided with and controlling to purge tube connector break-make is purged.
Further, dedust air duct is provided with multiple dust absorbing structure, dust absorbing structure comprises: sweep-up pipe, and sweep-up pipe is connected on dedust air duct, and the dust sucked is sent into dedust air duct; First control valve, the first control valve is arranged on sweep-up pipe, and the aperture of the first control valve is adjustable.
Further, purging system is connected with deduster, and purging system also comprises: arm is swept in blowback, and blowback is swept arm and is connected between purging house steward and dust remover roof, and reverse blow deduster.
Further, purge gas is inert gas, and purging system also comprises: inactive protect arm, and inactive protect arm is connected to deduster and purges between house steward, and is filled with in deduster by inert gas.
Further, deduster is sack cleaner, and the bottom of deduster is taper dump skip, the bottom of taper dump skip is provided with discharge port, purging system also comprises Gas Gun, and Gas Gun to be arranged on taper dump skip and to hit the perisporium of the taper dump skip that shakes, and Gas Gun is connected with purging house steward.
Further, tracing system comprises jacket type heat tracing pipe, and jacket type heat tracing pipe is wrapped in outside dedust air duct and/or sweep-up pipe.
Further, tracing system also comprises coiled heat tracing pipe, and coiled heat tracing pipe is coiled in the periphery of deduster.
Further, all side het water is connected with in jacket type heat tracing pipe and coiled heat tracing pipe.
Application the technical solution of the utility model, the deduster that dust arrester comprises dedust air duct and is connected with dedust air duct, dust arrester also comprises purging system and tracing system, and purging system is connected with dedust air duct, and passes into purge gas in dedust air duct; Tracing system is arranged on outside dedust air duct and deduster, and heats dedust air duct and deduster.Purging system purges in dust arrester, prevents dust from accumulating in dust arrester, the dust explosion etc. avoiding dust to gather causing, and ensures the job security of dust arrester.Tracing system heats dust arrester, prevents the aqueous vapor in dust from condensing in cold environments and causes dust adhesion at the inwall of dust arrester, prevent dust arrester from blocking.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the schematic diagram according to the dedust air duct of the dust arrester of embodiment of the present utility model and corresponding purging system, tracing system;
Fig. 2 shows the schematic diagram according to the deduster of the dust arrester of embodiment of the present utility model and corresponding purging system, tracing system; And
Fig. 3 shows the structural representation of the dust arrester of embodiment of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, the second control valve; 2, house steward is purged; 3, jacket type heat tracing pipe; 4, the first control valve; 5, dedust air duct; 6, the first control valve; 7, dedusting wind-collecting cover; 8, arm is swept in blowback; 9, deduster; 10, dedusting inlet pipe; 11, unload material control valve; 12, Gas Gun; 13, dedusting nitrogen heat tracing pipe; 14, coiled heat tracing pipe; 15, fans entrance pipe; 16, fans entrance valve; 17, blower fan; 18, taper dump skip; 19, tube connector is purged; 20, sweep-up pipe.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figures 1 to 3, according to embodiment of the present utility model, the deduster 9 that dust arrester comprises dedust air duct 5 and is connected with dedust air duct 5, dust arrester also comprises purging system and tracing system, purging system is connected with dedust air duct 5, and passes into purge gas in dedust air duct 5; Tracing system is arranged on outside dedust air duct 5 and deduster 9, and heats dedust air duct 5 and deduster 9.Purging system purges in dust arrester, prevents dust from accumulating in dust arrester, the dust explosion etc. avoiding dust to gather causing, and ensures the job security of dust arrester.Tracing system heats dust arrester, prevents the aqueous vapor in dust from condensing in cold environments and causes dust adhesion at the inwall of dust arrester, prevent dust arrester from blocking.
In the present embodiment,
Deduster 9 is sack cleaner.The sidewall of sack cleaner is provided with import, discharge port and gas vent.The import of sack cleaner is connected with dedusting inlet pipe 10, and dedusting inlet pipe 10 is connected with dedust air duct 5, and dust is sent in deduster 9 by dedust air duct 5.Discharge port is arranged on the bottom of the taper dump skip 18 of deduster 9, and the dust that deduster 9 filters out is discharged by the discharge port of the taper dump skip 18 of deduster 9.Discharge port is connected with discharge duct, discharge duct is provided with unload material control valve 11, unload material control valve 11 controls whether outwards discharging.Gas vent is arranged on the sidewall of deduster 9, gas vent is connected with fans entrance pipe 15, fans entrance pipe 15 is connected with blower fan 17, and being bled by blower fan 17 makes deduster 9 work.Fans entrance pipe 15 is provided with fans entrance valve 16, and the aperture of fans entrance valve 16 is adjustable, can regulate the air quantity entering blower fan 17.
Purging system comprises purging house steward 2 and purges tube connector 19, purges in house steward 2 and passes into purge gas, purges tube connector 19 and is connected between purging house steward 2 and dedust air duct 5, and is introduced in dedust air duct 5 by the purge gas purged in house steward 2.Purge tube connector 19 in dedust air duct 5, blow high speed, the little tolerance gas of high pressure, gas is hit on the tube wall of dedust air duct 5, the dust of deposition is evoked.The gas blowed with purging tube connector 19 discontinuous.
It is multiple for purging tube connector 19, and arranges at interval successively along the length direction of dedust air duct 5, can purge dedust air duct 5 in multiple position, still can have good purging effect when ensureing that the length of dedust air duct 5 is longer.
Purge on house steward 2 and be provided with the second control valve 1, to control the break-make purging house steward 2.Second control valve 1 is master control valve.
In the present embodiment, the pipeline of dedust air duct 5 is walked in pipe process, and dedust air duct 5 has at least one bending segment, and due to bending segment, place easily causes laying dust, so the equal correspondence of each bending segment is provided with purge tube connector 19, can realize good anti-laying dust effect like this.
Preferably, in order to avoid waste and make purging controlling better, purge the first control valve 4 tube connector 19 being provided with and controlling to purge tube connector 19 break-make, first control valve 4 can control the break-make of the purging tube connector 19 at its place, can purge dedust air duct 5 pointedly, flexibility is better, can avoid waste.
Dust arrester is in order to can effectively dedusting, and dedust air duct 5 is provided with multiple dust absorbing structure, and dust absorbing structure comprises sweep-up pipe 20, first control valve 6 and dedusting wind-collecting cover 7.
Sweep-up pipe 20 is connected on dedust air duct 5, and introduces in dedust air duct 5, to send into deduster 9 by the dust sucked.First control valve 6 is arranged on sweep-up pipe 20, and the aperture of the first control valve 6 is adjustable, and to control the gas flow rate of sweep-up pipe 20, dedusting wind-collecting cover 7 is arranged on the end of sweep-up pipe 20, to collect wind improving suction, realizes better dust removing effects.Each sweep-up pipe 20 forms one except dirt pits.
Purge gas is inert gas, and preferably, purge gas is nitrogen.Purging system also comprises blowback and sweeps arm 8.Blowback is swept arm 8 and is connected between purging house steward 2 and deduster 9 top, and reverse blow deduster 9, the inlet outlet pressure differential that arm 8 can regulate deduster 9 is swept in blowback.
In order to prevent the dust generation dust explosion in deduster 9, purging system also comprises inactive protect arm, and inactive protect arm is connected to deduster 9 and purges between house steward 2, and is filled with in deduster 9 by inert gas.In the present embodiment, inactive protect arm is connected on taper dump skip 18, and inert gas is introduced in deduster 9 by inactive protect arm, makes the air inerting in deduster 9, prevents burning, improves security.
Because deduster 9 works in cold environments, the easy condensation of aqueous vapor in dust, after aqueous vapor condensation, dust more easily adheres to, easily on taper dump skip 18, form bridging phenomenon, this makes dust easily block discharge port, and in order to ensure that deduster 9 normally works, purging system also comprises Gas Gun 12, Gas Gun 12 to be arranged on taper dump skip 18 and to hit the perisporium of the taper dump skip 18 that shakes, and Gas Gun 12 is connected with purging house steward 2.In the present embodiment, Gas Gun 12 is nitrogen big gun, and impacting taper dump skip 18 by nitrogen big gun can shake off the dust sticked on inwall.
In order to prevent aqueous vapor condensation, tracing system comprises jacket type heat tracing pipe 3, and jacket type heat tracing pipe 3 is wrapped in outside dedust air duct 5 and sweep-up pipe 20.Jacket type heat tracing pipe 3 is convenient to handling.
Tracing system also comprises coiled heat tracing pipe 14, and coiled heat tracing pipe 14 is coiled in the periphery of deduster 9.Coiled heat tracing pipe 14 is convenient to the periphery being arranged on deduster 9, has and better accompanies thermal effect.
All be connected with side het water in jacket type heat tracing pipe 3 and coiled heat tracing pipe 14, side het water provides heat for dedust air duct 5 and deduster 9, prevents aqueous vapor condensation.
This dust arrester can be applied to extremely frigid zones.Deduster 9 is pocket type concentrated dust-removing device.It can be widely used in the industries such as mining industry, coal, chemical industry, has that efficiency of dust collection is high, simple operation and other advantages.
The dust arrester of the present embodiment adds dedust air duct 5 and heat accompanied by deduster 9, has carried out nitrogen and has purged and nitrogen purging, adopts the rapping of nitrogen big gun.
In dust arrester running, for guaranteeing the straight length not accumulated powder of dedust air duct 5, wind speed in dedust air duct 5 be kept to be not less than 20m/s.Easily turn round (being also bending segment) of dedust air duct 5 installing and purge tube connector 19 in accumulated powder position simultaneously; regularly dedust air duct 5 is jetted by the first control valve 4 in dust arrester running and after stopping; both can purge dedust air duct 5 accumulated powder; nitrogen purging protective effect can be played again, thoroughly eliminate dedust air duct 5 accumulated powder problem.
First control valve 4 is magnetic valve.
Dedust air duct adopts jacket type heat tracing pipe 3 to carry out companion's heat outward, and logical hot water in jacket type heat tracing pipe 3, tracing system is stable, heat exchange efficiency is high, accompanies hot supply water temperature can design according to the size of moist steam dew-point temperature in dedust air duct 5.
In order to prevent the inner accumulated powder of taper dump skip 18 of deduster 9, nitrogen big gun being installed at taper dump skip 18 place and regularly rapping being carried out to taper dump skip 18, guaranteeing that inner coal dust is without " bridging ", putty problem.
At the casing place of deduster 9, inactive protect arm is installed, after system-down, supplements nitrogen in deduster 9 inside and form inerting environment, effectively can prevent the coal dust generation spontaneous combustion of deduster 9 inside, avoid causing cloth bag burnout failure.Inactive protect arm is outside equipped with dedusting nitrogen heat tracing pipe 13, thinks its companion's heat.
Deduster 9 casing adopts coiled heat tracing pipe 14 to coil to accompany heat outward, guarantees that moist steam there will not be condensation trouble in inside.
In conjunction with see Fig. 3, the technology arrangement of dust arrester can design according to the distribution of scene except dirt pits, dedusting air quantity by except dirt pits number determined.
Arrange 4 in the present embodiment except dirt pits, 4 dust except dirt pits are drawn into deduster 9 by dedust air duct 5 and carry out Bag filter, and the coal dust collected discharges taper dump skip by unload material control valve, and the gas after filtration is emptying by blower fan 17.Unload material control valve is star-shaped discharge valve.
Dedust air duct 5 adopts jacket type heat tracing pipe 3, and deduster 9 body adopts coiled heat tracing pipe 14, and side het water's Water temperature control is at 95 ~ 105 DEG C.
Each air quantity except dirt pits adjusts by the aperture of corresponding first control valve.First control valve 6 is flapper valve.
Regularly purge at the corner of dedust air duct 5 0.2 ~ 0.4MPa nitrogen.
Deduster 9 is by nitrogen pulse back blow, and nitrogen blowback frequency is controlled by PLC, by adjustment blowback frequency and nitrogen pressure, deduster 9 inlet outlet pressure differential is controlled 200 ~ 400MPa.
This dust arrester can use in highly cold area, ensures in the normal dedusting of height cold district, and stable, has good applicability, has wide range of applications.
From above description, can find out, the utility model the above embodiments achieve following technique effect: this dust arrester can use at extremely frigid zones, in the stable operation of extremely frigid zones energy, effectively can solve the problem such as accumulated powder spontaneous combustion, moist steam condensation in dust arrester.This dust arrester is pocket type central dust extraction unit, can in severe cold area stable operation, efficiency of dust collection is high, simple to operate, maintenance is little.Efficiently solve pocket type concentrated dust-removing problem such as ubiquitous internal condensation, putty when extremely frigid zones is applied, by nitrogen purging, purge measure, eliminate the potential safety hazard of spontaneous combustion of pulverized coal in system.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (12)
1. a dust arrester, the deduster (9) that described dust arrester comprises dedust air duct (5) and is connected with described dedust air duct (5), it is characterized in that, described dust arrester also comprises:
Purging system, described purging system is connected with described dedust air duct (5), and passes into purge gas in described dedust air duct (5);
Tracing system, described tracing system is arranged on described dedust air duct (5) and described deduster (9) outward, and heats described dedust air duct (5) and described deduster (9).
2. dust arrester according to claim 1, it is characterized in that, described purging system comprises purging house steward (2) and purges tube connector (19), described purge gas is passed in described purging house steward (2), described purging tube connector (19) is connected between described purging house steward (2) and described dedust air duct (5), and is introduced in described dedust air duct (5) by the described purge gas in described purging house steward (2).
3. dust arrester according to claim 2, is characterized in that, described purging tube connector (19) for multiple, and is arranged at interval successively along the length direction of described dedust air duct (5).
4. dust arrester according to claim 3, is characterized in that, described dedust air duct (5) has at least one bending segment, and the equal correspondence of each described bending segment is provided with described purging tube connector (19).
5. the dust arrester according to claim 3 or 4, is characterized in that, described purging tube connector (19) is provided with the first control valve (4) controlling described purging tube connector (19) break-make.
6. dust arrester according to claim 3, is characterized in that, (5) are provided with multiple dust absorbing structure to described dedust air duct, and described dust absorbing structure comprises:
Sweep-up pipe (20), described sweep-up pipe (20) is connected on described dedust air duct (5), and the dust of suction is sent into described dedust air duct (5);
First control valve (6), described first control valve (6) is arranged on described sweep-up pipe (20), and the aperture of described first control valve (6) is adjustable.
7. dust arrester according to claim 2, is characterized in that, described purging system is connected with described deduster (9), and described purging system also comprises:
Arm (8) is swept in blowback, and described blowback is swept arm (8) and is connected between described purging house steward (2) and described deduster (9) top, and deduster described in reverse blow (9).
8. dust arrester according to claim 7, is characterized in that, described purge gas is inert gas, and described purging system also comprises:
Inactive protect arm, described inactive protect arm is connected to described deduster (9) and describedly purges between house steward (2), and is filled with in described deduster (9) by described inert gas.
9. dust arrester according to claim 2, it is characterized in that, described deduster (9) is sack cleaner, the bottom of described deduster (9) is taper dump skip (18), the bottom of described taper dump skip (18) is provided with discharge port, described purging system also comprises Gas Gun (12), described Gas Gun (12) is arranged on described taper dump skip (18) and goes up and the perisporium hitting described taper dump skip (18) of shaking, and described Gas Gun (12) purges house steward (2) be connected with described.
10. dust arrester according to claim 6, it is characterized in that, described tracing system comprises jacket type heat tracing pipe (3), and described jacket type heat tracing pipe (3) is wrapped in described dedust air duct (5) and/or described sweep-up pipe (20) outward.
11. dust arresters according to claim 10, is characterized in that, described tracing system also comprises coiled heat tracing pipe (14), and described coiled heat tracing pipe (14) is coiled in the periphery of described deduster (9).
12. dust arresters according to claim 11, is characterized in that, are all connected with side het water in described jacket type heat tracing pipe (3) and described coiled heat tracing pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740465.6U CN204246978U (en) | 2014-11-28 | 2014-11-28 | Dust arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740465.6U CN204246978U (en) | 2014-11-28 | 2014-11-28 | Dust arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204246978U true CN204246978U (en) | 2015-04-08 |
Family
ID=52951336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420740465.6U Active CN204246978U (en) | 2014-11-28 | 2014-11-28 | Dust arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204246978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279369A (en) * | 2018-08-03 | 2019-01-29 | 南京天本安全技术有限公司 | A kind of dust pelletizing system is continuously automatically plus powder inerting unit and its working method |
| CN112881065A (en) * | 2021-01-08 | 2021-06-01 | 王培娟 | Method for extracting substances in archaeological underground tomb based on multiple layers |
-
2014
- 2014-11-28 CN CN201420740465.6U patent/CN204246978U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279369A (en) * | 2018-08-03 | 2019-01-29 | 南京天本安全技术有限公司 | A kind of dust pelletizing system is continuously automatically plus powder inerting unit and its working method |
| CN112881065A (en) * | 2021-01-08 | 2021-06-01 | 王培娟 | Method for extracting substances in archaeological underground tomb based on multiple layers |
| CN112881065B (en) * | 2021-01-08 | 2021-12-21 | 王培娟 | Method for extracting substances in archaeological underground tomb based on multiple layers |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |