CN202611743U - Adjustable air brattice for mines - Google Patents
Adjustable air brattice for mines Download PDFInfo
- Publication number
- CN202611743U CN202611743U CN 201220255741 CN201220255741U CN202611743U CN 202611743 U CN202611743 U CN 202611743U CN 201220255741 CN201220255741 CN 201220255741 CN 201220255741 U CN201220255741 U CN 201220255741U CN 202611743 U CN202611743 U CN 202611743U
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- China
- Prior art keywords
- air
- screen
- aqueduct
- coal
- brattice
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- 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
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Abstract
The utility model provides an adjustable air brattice for mines. The adjustable air brattice comprises an under-mine aqueduct, and air brattices are arranged at the front end and the rear end of the aqueduct respectively. The air brattices are composed of upper blocking boards and lower blocking boards which are connected through hinges. According to the adjustable air brattice for mines, the two air brattices are arranged and can adjust the size of an open section automatically with sizes of discharged coal briquettes, so that the air leakage rate of mine roadway air door systems is reduced effectively; the air quantity of working faces is guaranteed, the relative out-flow of methane is reduced, and the safety production is facilitated; and the seal of the aqueduct provided with the air brattices is tight, so that the dust production amount of crushed coal passing through the aqueduct is reduced apparently.
Description
Technical field
The utility model relates to a kind of screen, is specifically related to the adjustable screen that a kind of coal mine roadway is used to reduce air leak rate of air curtain and dust-producing amount.
Background technology
In the colliery during underground mining, transportations such as the coal that needs at any time exploitation to be come out, spoil are come out, and its main haulage device is rubber conveyer or drag conveyor.Owing in recovery process, can produce a large amount of coal dusts, also have gushing out of gas, in order to prevent the injury to underground operators of coal dust and gas, the colliery underworkings is all built perfect ventilation system, oxygen is provided and waters down gas and the concentration of coal dust.
When building ventilation system, its air door needs to stay aqueduct to satisfy the needs that coal, spoil pass through to conveyer.Because when not shipment of conveyer or shipment seldom the time, its aqueduct has just increased inleakage, makes flue dust or gas in coal or the spoil get into work plane, influences people's identity health, and has certain potential safety hazard.So traditional way is to adopt the air duct cloth scrap to come aqueduct is carried out shutoff, but air duct cloth hardness is low and fragile, when wind speed is big even blown afloat, can not satisfy the requirement of leak stopping.In addition, the operation of screen must be moved the transporter expert by the people and hang, and has so not only influenced Homes Using TV but also has increased the security risk that personnel get into transporter.
The utility model content
In order to overcome the deficiency that original screen exists, the utility model provides a kind of adjustable screen, and this screen not only can reduce the air leak rate of air curtain of damper system, and can reduce coal, the dust-producing amount when spoil passes through screen.
The utility model solves the technical scheme that its technical problem adopted:
Mining adjustable screen comprises aqueduct under the coal mine, and the front and back end of said aqueduct respectively is provided with screen one, and said screen is made up of upper and lower baffle plate, is connected through the hinge between them.
Said screen is made up of the upper, middle and lower baffle plate, is connected through the hinge between them.
Said baffle plate is to be processed by the waste and old adhesive tape of adhesive tape conveyor.
Distance between the twice screen of said front and back is 0.5 m-0.8 m.
The rubber conveyer adhesive tape that the utility model utilization is scrapped replaces the baffle plate of original air duct cloth as screen, has improved the toughness and the intensity of screen, does not make it fragile or be blown up.Screen is fixed on the front and back end of aqueduct, forms the twice screen, when the first road screen was opened, another road screen still was kept closed reducing and leaks out.The excessive twice screen that causes of coal cinder is opened simultaneously when preventing to produce coal, and the distance between the twice screen generally is not less than 0.5m, also can transfer to 0.8m according to actual needs.And screen is to use upper and lower two parts, or the upper, middle, and lower part baffle plate is formed by connecting with hinge, improved the use flexibility, and screen can be regulated and opens the section size along with the size of the coal cinder that produces coal automatically, thereby further reduces to leak out.Less or when going out broken coal, the screen lower baffle plate is opened when the coal cinder that produces coal, overhead gage still is kept closed reducing and leaks out; And when the coal cinder that produces coal was big, upper and lower baffle plate was opened simultaneously, in case coal cinder stops up aqueduct.
So the beneficial effect of the utility model is:
1, be provided with the twice screen, and screen can effectively reduce the air leak rate of air curtain of coal mine roadway damper system along with the automatic adjusting unlatching of the size of the coal cinder that produces coal section size;
2, ensure the air quantity of work plane, reduced relative abundance of methane, helped safety in production;
3, it is tighter the aqueduct sealing of screen to be set, and broken coal dust-producing amount when lead-over groove significantly reduces;
4, screen is to use upper and lower two parts, or the upper, middle, and lower part baffle plate is formed by connecting with hinge, has improved the use flexibility, does not need manually-operated.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to specify.
The screen structural representation of Fig. 1: embodiment one;
The screen structural representation of Fig. 2: embodiment two;
Screen folding condition flow chart during the producing coal of Fig. 3: embodiment one;
Among the figure: the 1-aqueduct; The 2-first road screen; The 3-second road screen; The 4-1-overhead gage; The 4-2-lower baffle plate; Baffle plate among the 4-3; The 5-hinge.
The specific embodiment
Embodiment one:
As shown in Figure 1, mining adjustable screen comprises aqueduct 1 under the coal mine, and the front and back end of said aqueduct 1 respectively is provided with screen one, and the distance between the first road screen 2 and the second road screen 3 is 0.5 m; Said screen is made up of overhead gage 4-1, lower baffle plate 4-2 two parts baffle plate, connects through hinge 5 between them.Said upper and lower baffle plate is to be processed by the waste and old adhesive tape of adhesive tape conveyor.
Embodiment two:
As shown in Figure 2, mining adjustable screen comprises aqueduct 1 under the coal mine, and the front and back end of said aqueduct 1 respectively is provided with screen one, and the distance between the first road screen 2 and the second road screen 3 is 0.8 m; Said screen is made up of overhead gage 4-1, middle baffle plate 4-3 and lower baffle plate 4-2 three part baffle plates, connects through hinge 5 between them.Said upper, middle and lower baffle plate is to be processed by the waste and old adhesive tape of adhesive tape conveyor.
Embodiment three:
Folding condition flow chart when the screen of the embodiment of being as shown in Figure 3 produces coal, shown in turning left from the right side be, when coal cinder got into screen, the lower baffle plate of the first road screen was opened in the driving force effect of coal cinder, and overhead gage still is kept closed; Coal cinder advances, and when being positioned at twice screen middle, its twice screen receives to be closure state under the effect of self gravitation; When coal cinder will go out the second road screen, second screen was in the driving force effect of coal cinder, and its lower baffle plate is opened, and still is kept closed and go up plate washer.
When the coal cinder that produces coal was big, the upper and lower baffle plate of screen was opened simultaneously, in case coal cinder stops up aqueduct, but another road screen is a closure state still, has prevented to leak out.
When producing coal coal cinder hour, screen can adopt the upper, middle and lower baffle plate to form, and has prevented better to leak out.Screen folding condition during its coal cinder trip as previously mentioned.
The foregoing description is not limited only to the protection domain of the utility model, all based on the basic thought of the utility model and make amendment or the protection domain that all belongs to the utility model that changes in.
Claims (4)
1. mining adjustable screen comprises aqueduct under the coal mine, it is characterized in that: the front and back end of said aqueduct respectively is provided with screen one, and said screen is made up of upper and lower baffle plate, is connected through the hinge between them.
2. mining adjustable screen according to claim 1, it is characterized in that: said screen is made up of the upper, middle and lower baffle plate, is connected through the hinge between them.
3. mining adjustable screen according to claim 1 and 2 is characterized in that: said baffle plate is to be processed by the waste and old adhesive tape of adhesive tape conveyor.
4. mining adjustable screen according to claim 1 is characterized in that: the distance between the twice screen of said front and back is 0.5 m-0.8 m.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255741 CN202611743U (en) | 2012-06-01 | 2012-06-01 | Adjustable air brattice for mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255741 CN202611743U (en) | 2012-06-01 | 2012-06-01 | Adjustable air brattice for mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202611743U true CN202611743U (en) | 2012-12-19 |
Family
ID=47345452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255741 Expired - Fee Related CN202611743U (en) | 2012-06-01 | 2012-06-01 | Adjustable air brattice for mines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202611743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306723A (en) * | 2013-06-26 | 2013-09-18 | 安徽理工大学 | Convenient gas curtains for coal working face and method adopting same to block off corners |
| CN111305888A (en) * | 2020-02-24 | 2020-06-19 | 河南理工大学 | Intelligent air curtain device for underground working face of coal mine |
-
2012
- 2012-06-01 CN CN 201220255741 patent/CN202611743U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306723A (en) * | 2013-06-26 | 2013-09-18 | 安徽理工大学 | Convenient gas curtains for coal working face and method adopting same to block off corners |
| CN111305888A (en) * | 2020-02-24 | 2020-06-19 | 河南理工大学 | Intelligent air curtain device for underground working face of coal mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130601 |