CN103990593A - Coal gangue powder screening and recovering device - Google Patents
Coal gangue powder screening and recovering device Download PDFInfo
- Publication number
- CN103990593A CN103990593A CN201410198115.6A CN201410198115A CN103990593A CN 103990593 A CN103990593 A CN 103990593A CN 201410198115 A CN201410198115 A CN 201410198115A CN 103990593 A CN103990593 A CN 103990593A
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- recovering
- screening
- accumulator tank
- powder
- sifting barrel
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Abstract
The invention belongs to the field of screening devices and relates to a coal gangue powder screening and recovering device which comprises a screening barrel. A feed opening is formed in the bottom of the screening barrel. A powder recovering device comprises a recovering tank. A discharge port is formed in the bottom of the recovering tank. A feed port is formed in the recovering tank and provided with a pipeline connected with the top of the screening barrel. A recovering cover covering the top of the screening barrel is arranged at the end of the pipeline. A draught fan is arranged on the other side wall of the recovering tank. A baffle is arranged between the draught fan and the feed port. A conveyor belt is arranged is arranged at the lower portion of the feed opening of the screening barrel and the lower portion of the discharge port of the recovering tank. The surface of the baffle is a curved surface. The lower portion of the baffle extends to the side wall of the recovering tank and does not make contact with the recovering tank. By the additional arrangement of the powder recovering device, raise dust in the screening barrel can be collected to the recovering tank and flow back to the conveyor belt for use, pollution to the operating environment due to raise dust in the screening process is prevented, resources are saved, and the utilization ratio is increased.
Description
Technical field
The invention belongs to screening plant field, be specifically related to a kind of gangue powder screening retracting device.
Background technology
Gangue is the solid waste discharging in coal mining process and coal washing process, is a kind of black gray expandable rock lower, harder than coal with a kind of phosphorus content of coal seam association in coalification course.Comprise the spoil of washing of choosing in the spoil of extraction from top board, base plate and interlayer in digging gangue in tunnelling process, mining process and coal washing process.Its main component is Al2O3, SiO2, also contains in addition Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and micro-rare element that quantity does not wait, and gangue is thrown aside, takies tract.Sulfide in gangue is overflowed or leached can atmosphere pollution, farmland and water body.Spoil stone also can spontaneous combustion breaking out of fire, or in avalanche in rainy season, silts river up and cause disaster.China accumulates gangue and reaches more than 1,000,000,000 tons, also will discharge every year 100000000 tons of gangues.
The exploitation of gangue become the industry of present rise, use now gangue to make environmental protection brick, first need gangue to pulverize, then utilize, after pulverizing, need screening, when screening, can produce a large amount of gangue powder, cause the pollution of operating environment, powder flies upward the waste that also can cause material simultaneously.
Summary of the invention
The shortcoming of the more operating environment of pollution of airborne dust when solving existing screened coal spoil powder, the invention provides a kind of gangue powder screening retracting device, can collect recycling to the airborne dust that when screening produces, ensure operating environment, reduce again the loss of gangue powder while screening.
The present invention is achieved through the following technical solutions:
A kind of gangue powder screening retracting device, comprise sifting barrel, transport tape and powder recovering device, sifting barrel bottom is provided with feed opening, powder recovering device comprises accumulator tank, accumulator tank bottom is provided with discharging opening, accumulator tank is provided with charging aperture, on charging aperture, there is the pipeline being connected with sifting barrel top, pipe end is the recovery cover that covers on sifting barrel top, another sidewall of accumulator tank is provided with air exhauster, between air exhauster and charging aperture, be provided with baffle plate, conveyer belt is arranged on the discharging opening bottom of feed opening and the accumulator tank of sifting barrel.Described baffle surface is curved surface, and extend to the sidewall of accumulator tank baffle plate bottom, and baffle plate bottom does not contact with accumulator tank.
On described accumulator tank, be also provided with a pipeline being connected with sifting barrel middle part.
Beneficial effect of the present invention: the present invention is by increasing powder recovering device, both can be by the powder collection of kicking up in sifting barrel to accumulator tank and be back to transport tape utilization, while having prevented screening, powder is kicked up and is caused the pollution to operating environment, has also saved resource, has increased utilization rate.
Brief description of the drawings
Fig. 1 is gangue powder retracting device screening retracting device structure chart.
Detailed description of the invention
A kind of gangue powder screening retracting device, comprise sifting barrel 1, transport tape 6 and powder recovering device, sifting barrel 1 bottom is provided with feed opening 7, powder recovering device comprises accumulator tank 4, accumulator tank 4 bottoms are provided with discharging opening, accumulator tank 4 is provided with charging aperture, on charging aperture, there is the pipeline being connected with sifting barrel 1 top, pipe end is the recovery cover 8 that covers on sifting barrel top, another sidewall of accumulator tank 4 is provided with air exhauster 3, between air exhauster 3 and charging aperture, be provided with baffle plate 2, baffle plate 2 can prevent that air exhauster 3 is by the powder extraction of suction accumulator tank 4, conveyer belt 6 is arranged on the discharging opening bottom of feed opening 7 with the accumulator tank of sifting barrel.Described baffle plate 2 surfaces are curved surface, and extend to the sidewall of accumulator tank baffle plate 2 bottoms, and baffle plate 2 bottoms do not contact with accumulator tank.
On described accumulator tank 4, be also provided with a pipeline being connected with sifting barrel middle part, use upper and lower two pipelines to absorb the dust in sifting barrel 1, improved the absorption efficiency of dust, prevent that the dust in sifting barrel 1 is blown into operation room.
Described sifting barrel 1 is vibratory sieve, when screening, can shake, and improves the efficiency of screening.Screen cloth in sifting barrel is sandwich construction, is provided with movably packing ring between every layer of screen cloth, when screening, between screen cloth, mutually pats, and prevents that screen cloth from stopping up.
Claims (2)
1. a gangue powder screening retracting device, it is characterized in that: comprise sifting barrel, transport tape and powder recovering device, sifting barrel bottom is provided with feed opening, powder recovering device comprises accumulator tank, accumulator tank bottom is provided with discharging opening, accumulator tank is provided with charging aperture, on charging aperture, there is the pipeline being connected with sifting barrel top, pipe end is the recovery cover that covers on sifting barrel top, another sidewall of accumulator tank is provided with air exhauster, between air exhauster and charging aperture, be provided with baffle plate, conveyer belt is arranged on the discharging opening bottom of feed opening and the accumulator tank of sifting barrel.
2. a kind of gangue powder screening retracting device according to claim 1, is characterized in that: on described accumulator tank, be also provided with a pipeline being connected with sifting barrel middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198115.6A CN103990593A (en) | 2014-05-13 | 2014-05-13 | Coal gangue powder screening and recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198115.6A CN103990593A (en) | 2014-05-13 | 2014-05-13 | Coal gangue powder screening and recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103990593A true CN103990593A (en) | 2014-08-20 |
Family
ID=51305070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410198115.6A Pending CN103990593A (en) | 2014-05-13 | 2014-05-13 | Coal gangue powder screening and recovering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103990593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401647A (en) * | 2021-05-07 | 2021-09-17 | 北方魏家峁煤电有限责任公司 | Gangue sorter conveyor and gangue sorter |
-
2014
- 2014-05-13 CN CN201410198115.6A patent/CN103990593A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401647A (en) * | 2021-05-07 | 2021-09-17 | 北方魏家峁煤电有限责任公司 | Gangue sorter conveyor and gangue sorter |
| CN113401647B (en) * | 2021-05-07 | 2023-03-21 | 北方魏家峁煤电有限责任公司 | Gangue sorter conveyor and gangue sorter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |
|
| WD01 | Invention patent application deemed withdrawn after publication |