CN205023409U - Dust removing appts. of coal conveying system - Google Patents
Dust removing appts. of coal conveying system Download PDFInfo
- Publication number
- CN205023409U CN205023409U CN201520661226.6U CN201520661226U CN205023409U CN 205023409 U CN205023409 U CN 205023409U CN 201520661226 U CN201520661226 U CN 201520661226U CN 205023409 U CN205023409 U CN 205023409U
- Authority
- CN
- China
- Prior art keywords
- deflector chute
- coal
- cover plate
- negative pressure
- cell body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 72
- 239000000428 dust Substances 0.000 title claims abstract description 28
- 210000005056 cell body Anatomy 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000002817 coal dust Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Structure Of Belt Conveyors (AREA)
Abstract
Dust removing appts. Of coal conveying system relates to coal conveying system technical field, and mainly used solves the serious problem of coal conveying system dust pollution. It seals after including baffle box cell body, the preceding check apron of baffle box and baffle box, manages and lead at the blanking to be provided with the negative pressure back flow between the trough cover plate, and the one end of negative pressure back flow communicates with the lateral wall of blanking pipe, and the other end connection of negative pressure back flow is on leading trough cover plate, and the blanking is managed to the negative pressure back flow and the baffle box cell body communicates, before lieing in negative pressure back flow and baffle box between the check apron lead trough cover plate on be equipped with the circulation relief pipe, the both ends of circulation relief pipe all feed through with the baffle box cell body, leading before lieing in circulation relief pipe and baffle box between the check apron is provided with adjustable attenuator on the trough cover plate, and adjustable attenuator lies in the inside of baffle box cell body the free end of adjustable attenuator is fixed with the switch -plate. The device can effectively prevent the production of dust.
Description
Technical field
The utility model relates to coal handling system technical field, specifically coal handling system dusting equipment version optimization device.
Background technology
The dust harzard of thermal powerplant is a technical barrier always, and the harm of defeated coal environment dust concentration height is large, contaminated environment and easily cause fire explosion etc.Because thermal powerplant generally adopts band conveyor raw coal to be delivered to the Ways of coal haulage of raw coal bucket, belt conveyer of the prior art is due to own structural characteristics, discharging groove and adhesive tape bad sealing, raw coal and environment can not be completely isolated, traditional dust exhaustor efficiency of dust collection is not high, at the discharging point place of each transfer point of coal handling system, owing to transporting drop between belt feeder, raw coal falling impacts to belt produces a large amount of dust, cause coal handling system seriously polluted, become the heavy polluter in whole power plant, serious threat is constituted to the healthy of operating maintenance personnel simultaneously, occupational hazards situation is extremely severe, therefore develop and select novel anti-dust suppression equipment, administer coal handling system dust pollution, protection is beautified the environment, ensure that operating maintenance personnel's is healthy very necessary.
Utility model content
The purpose of this utility model is to provide a kind of dust removing appts. of coal conveying system, for solving the serious problem of coal handling system dust pollution.
The technical scheme in the invention for solving the technical problem is: dust removing appts. of coal conveying system, it comprises deflector chute cell body, seal after check apron and deflector chute before deflector chute, described deflector chute cell body is made up of the deflector chute cover plate be positioned at directly over coal conveyer belt and the deflector chute side seal being positioned at deflector chute cover plate both sides, material blanking tube is provided with above coal conveyer belt one end, it is characterized in that, negative pressure counter flow pipe is provided with between described material blanking tube and deflector chute cover plate, described one end of negative pressure counter flow pipe is communicated with the sidewall of material blanking tube, the other end of negative pressure counter flow pipe is connected on deflector chute cover plate, material blanking tube is communicated with deflector chute cell body by described negative pressure counter flow pipe, deflector chute cover plate before negative pressure counter flow pipe and deflector chute between check apron is provided with circulation relief pipe, and the two ends of described circulation relief pipe are all communicated with deflector chute cell body, deflector chute cover plate before circulation relief pipe and deflector chute between check apron is provided with recoverable reserves, and described recoverable reserves is positioned at the inside of deflector chute cell body, is fixed with switch-plate at the free end of described recoverable reserves.
Further, the anti-overflow skirtboard be obliquely installed is installed between described coal conveyer belt and deflector chute side seal.
Further, between described anti-overflow skirtboard and coal conveyer belt, two road check aprons are connected with.
Further, described circulation relief pipe is a bending tubular structure, and one end of circulation pressure reducer is large, one end is little, and the large end of described circulation relief pipe is positioned at the side at material blanking tube place, and the small end of circulation relief pipe is positioned at the side at check apron place before deflector chute.
Further, described recoverable reserves, negative pressure counter flow pipe are all connected with deflector chute cover plate by bolt group with circulation relief pipe.
Further, described switch-plate is the flexible piece of arc and is obliquely installed, and the free end of switch-plate is towards the direction of coal conveying on coal conveyer belt.
The beneficial effects of the utility model are: the dust removing appts. of coal conveying system that the utility model provides, under the effect of negative pressure counter flow pipe, circulation relief pipe and recoverable reserves, the leakage of defeated device for coal dust in defeated coal process can be effectively reduced, avoid dust pollution.Between coal conveyer belt and anti-overflow skirtboard, increase by two road check aprons can further seal deflector chute cell body, prevent dust from the clearance leakage of defeated device for coal to air.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the A-A cutaway view in Fig. 1;
Fig. 3 is the B direction view in Fig. 1;
Fig. 4 is C place partial enlarged drawing in Fig. 2;
In figure: 1 coal conveyer belt, 2 material blanking tubes, 3 deflector chute cover plates, check apron before 4 deflector chutes, seals after 5 deflector chutes, 6 deflector chute side seals, 7 anti-overflow skirtboards, 8 two road check aprons, 9 anti-tear buffering support plates, 10 recoverable reservess, 11 circulation relief pipes, 12 negative pressure counter flow pipes, 13 switch-plates.
Detailed description of the invention
As shown in Figures 1 to 4, a kind of dust removing appts. of coal conveying system, it comprises sealing 5 after check apron 4 before deflector chute cover plate 3, deflector chute side seal 6, deflector chute, deflector chute, anti-overflow skirtboard 7, two road check apron 8, negative pressure counter flow pipe 12, circulation relief pipe 11 and recoverable reserves 10, in order to better the utility model is described, carry out detailed description the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, above coal conveyer belt 1 one end, be provided with material blanking tube 2, coal drops on belt conveyor through material blanking tube, when the coal in material blanking tube drops on coal conveyer belt, produces dust.Deflector chute cell body is provided with between material blanking tube and coal conveyer belt, deflector chute cell body is primarily of sealing 5 compositions after check apron 4 before the deflector chute cover plate 3 be positioned at directly over coal conveyer belt, the deflector chute side seal 6 being positioned at deflector chute cover plate both sides, deflector chute and deflector chute, deflector chute cover plate is fixed on the support of coal conveyer belt, check apron 4 before the front end of deflector chute cover plate is provided with deflector chute, after the rear side of deflector chute cover plate is provided with deflector chute, seal 5, before deflector chute cover plate, deflector chute side seal, deflector chute, after check apron and deflector chute, sealing constitutes an airtight cavity.Below coal conveyer belt, be provided with anti-tear buffering support plate 9, drop on after on coal conveyer belt to avoid coal and larger impact is produced to coal conveyer belt, and then avoid tearing of coal conveyer belt.
As shown in Figure 2 and Figure 4, the anti-overflow skirtboard 7 of inclination is installed between coal conveyer belt 1 and deflector chute side seal 6, flies out through the gap between coal conveyer belt and deflector chute sealing to prevent dust.Between anti-overflow skirtboard 7 and coal conveyer belt, be connected with arranging of two road check apron 8, two road check aprons can prevent dust from flying out from deflector chute cell body further.The setting of anti-overflow skirtboard and two road check aprons enhances the leak tightness of above-mentioned airtight cavity.
As shown in Figure 1, be provided with negative pressure counter flow pipe 12 between material blanking tube 2 and deflector chute cover plate 3, one end of negative pressure counter flow pipe 12 is connected on the sidewall of material blanking tube 2, and negative pressure counter flow pipe is communicated with material blanking tube; The other end of negative pressure counter flow pipe 12 is connected on deflector chute cover plate 3, is communicated with by material blanking tube 2 by negative pressure counter flow pipe 12 with deflector chute cell body.Deflector chute cover plate 3 before negative pressure counter flow pipe 12 and deflector chute between check apron 4 is provided with circulation relief pipe 11, the essence of circulation relief pipe is a bending communicating pipe, one end of circulation pressure purger is large, the other end is little, the large end of circulation relief pipe near material blanking tube, small end check apron before deflector chute of circulation relief pipe.Deflector chute cover plate before circulation relief pipe 11 and deflector chute between check apron is provided with recoverable reserves 10, and recoverable reserves is positioned at the inside of deflector chute cell body; Recoverable reserves is vertically placed, and the installation end of recoverable reserves is fixed on deflector chute cover plate, be provided with the switch-plate 13 be obliquely installed at the free end of recoverable reserves, switch-plate is the flexible piece of arc, the direction of free end defeated coal on belt conveyor of switch-plate.Below the principle of work of this device is described in detail: when coal is fallen coal conveyer belt from material blanking tube, coal produces certain impact to coal conveyer belt, impact air-flow can be produced in deflector chute cell body, under the effect of impact air-flow, coal dust is blown afloat, part coal dust is got back in material blanking tube through negative pressure counter flow pipe, leaks into air to prevent coal dust from deflector chute cell body; Time below coal stream movement to recoverable reserves, flexible switch-plate contact with coal stream, and arranging of recoverable reserves and switch-plate can the vibrations that produced by impacting of actv. elimination coal conveyer belt, and this can the generation of actv. minimizing coal dust.When coal stream moves forward with coal conveyer belt, a coal stream induction blast can be produced under the effect of switch-plate and coal stream, under the effect of coal stream induction blast, breeze airflow enters into circulation relief pipe from the small end of circulation relief pipe, then be back to deflector chute cell body from the large end of circulation relief pipe, enter into the breeze airflow of circulation relief pipe, with wall friction in circulation relief pipe, and then make coal stream induce blast to reduce gradually; Meanwhile, breeze airflow enters from the small end of circulation relief pipe, can increase the coal gas pressure entering into circulation relief pipe, breeze airflow and circulation relief pipe is rubbed and weakens coal gas pressure; Weakened breeze airflow flows back in deflector chute cell body through the large end of circulation relief pipe, breeze airflow is through the large end of circulation relief pipe, breeze airflow air pressure is released, to make the coal gas pressure that is back to in deflector chute cell body little as much as possible, and then coal dust on belt conveyor is avoided to be blown afloat by a large amount of.
Claims (6)
1. dust removing appts. of coal conveying system, it comprises deflector chute cell body, seal after check apron and deflector chute before deflector chute, described deflector chute cell body is made up of the deflector chute cover plate be positioned at directly over coal conveyer belt and the deflector chute side seal being positioned at deflector chute cover plate both sides, material blanking tube is provided with above coal conveyer belt one end, it is characterized in that, negative pressure counter flow pipe is provided with between described material blanking tube and deflector chute cover plate, described one end of negative pressure counter flow pipe is communicated with the sidewall of material blanking tube, the other end of negative pressure counter flow pipe is connected on deflector chute cover plate, material blanking tube is communicated with deflector chute cell body by described negative pressure counter flow pipe, deflector chute cover plate before negative pressure counter flow pipe and deflector chute between check apron is provided with circulation relief pipe, and the two ends of described circulation relief pipe are all communicated with deflector chute cell body, deflector chute cover plate before circulation relief pipe and deflector chute between check apron is provided with recoverable reserves, and described recoverable reserves is positioned at the inside of deflector chute cell body, is fixed with switch-plate at the free end of described recoverable reserves.
2. dust removing appts. of coal conveying system according to claim 1, is characterized in that, is provided with the anti-overflow skirtboard be obliquely installed between described coal conveyer belt and deflector chute side seal.
3. dust removing appts. of coal conveying system according to claim 2, is characterized in that, is connected with two road check aprons between described anti-overflow skirtboard and coal conveyer belt.
4. dust removing appts. of coal conveying system according to claim 1, it is characterized in that, described circulation relief pipe is a bending tubular structure, and one end of circulation pressure reducer is large, one end is little, the large end of described circulation relief pipe is positioned at the side at material blanking tube place, and the small end of circulation relief pipe is positioned at the side at check apron place before deflector chute.
5. dust removing appts. of coal conveying system according to claim 1, is characterized in that, described recoverable reserves, negative pressure counter flow pipe are all connected with deflector chute cover plate by bolt group with circulation relief pipe.
6. dust removing appts. of coal conveying system according to claim 1, is characterized in that, described switch-plate is the flexible piece of arc and is obliquely installed, and the free end of switch-plate is towards the direction of coal conveying on coal conveyer belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661226.6U CN205023409U (en) | 2015-08-28 | 2015-08-28 | Dust removing appts. of coal conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661226.6U CN205023409U (en) | 2015-08-28 | 2015-08-28 | Dust removing appts. of coal conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205023409U true CN205023409U (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520661226.6U Expired - Fee Related CN205023409U (en) | 2015-08-28 | 2015-08-28 | Dust removing appts. of coal conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205023409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106081562A (en) * | 2016-08-18 | 2016-11-09 | 华电新乡发电有限公司 | Coal Transportation System method for treating flour dust and device |
| CN106115306A (en) * | 2016-08-11 | 2016-11-16 | 中冶京诚工程技术有限公司 | Solid material breakage-proof dust suppression conveying system of belt conveyor transfer point |
| CN109677836A (en) * | 2018-12-29 | 2019-04-26 | 大唐陕西发电有限公司灞桥热电厂 | A kind of thermal power plant's coal conveyer belt dust prevention system |
-
2015
- 2015-08-28 CN CN201520661226.6U patent/CN205023409U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115306A (en) * | 2016-08-11 | 2016-11-16 | 中冶京诚工程技术有限公司 | Solid material breakage-proof dust suppression conveying system of belt conveyor transfer point |
| CN106081562A (en) * | 2016-08-18 | 2016-11-09 | 华电新乡发电有限公司 | Coal Transportation System method for treating flour dust and device |
| CN109677836A (en) * | 2018-12-29 | 2019-04-26 | 大唐陕西发电有限公司灞桥热电厂 | A kind of thermal power plant's coal conveyer belt dust prevention system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza Building 1 B zone 20 room 2002 Patentee after: SHANDONG HUANNENG DESIGN INSTITUTE CO., LTD. Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza Building East Building 19-20 layer Patentee before: SHANDONG HUANNENG DESIGN INSTITUTE CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20200828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |