CN204841988U - System is selected separately to particulate coal dry process - Google Patents
System is selected separately to particulate coal dry process Download PDFInfo
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- CN204841988U CN204841988U CN201520570254.7U CN201520570254U CN204841988U CN 204841988 U CN204841988 U CN 204841988U CN 201520570254 U CN201520570254 U CN 201520570254U CN 204841988 U CN204841988 U CN 204841988U
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Abstract
The utility model discloses a system is selected separately to particulate coal dry process, including screw feeder, screw feeder's top is equipped with for the feed bin, and screw feeder's exit end is connected with air whirl sorter and primary blower, and a jet orifice intercommunication of the exit end of primary blower and air whirl sorter, and the bottom exit end of air whirl sorter is connected with the tail coal storage silo, and the top exit end is connected with the clean coal sorting unit who is used for selecting separately the clean coal. The utility model discloses lower limit of separation is low, the precision is high to simple process, matter is put forward in the coal sorting that is particularly useful for water -deficient area.
Description
Technical field
The utility model coal separation field, is specifically related to a kind of Bed for Fine Coal dry separation system, is applicable to the sorting upgrading of water-deficient area to coal.
Background technology
Coal resources in China rich reserves, but skewness, most of coal resources are stored at the west area of drought and water shortage.The selective ratio of coal in China is lower, and the preparation proportion of thermal coal is lower, and this just causes the serious wasting of resources and problem of environmental pollution.Coal resources in China is mainly distributed in drought and water-scarce area, occupies national coal reserves 2/3; The a considerable amount of young coal of China meets the easy argillization of water, should not adopt wet split.And adopt wet method jigging, dense medium and coal floatation, water consumption is large, and slime water system pressure is large, the outer water of wet split product up to more than 12%, investment and producing cost high, limit the development of some areas coal mining enterprise.Along with the develop rapidly of science and technology and becoming increasingly conspicuous of modern production advance; realize saving the energy; efficent use of resources and strengthen environmental protection etc. become global day by day urgent requirement; particularly the many employings of coal are now combined and are adopted technology; thus the Bed for Fine Coal needing sorting and classification is got more and more; the content of 3 ~ 0.5mm is general all between 20% ~ 45%, and therefore, the dry separation of Bed for Fine Coal is very necessary.At present, dry coal preparation mainly utilizes the physical property difference of coal and spoil to carry out sorting, as density, granularity, shape, glossiness, magnetic conductivity, electric conductivity, radiativity, and coefficient of friction etc.50 ~ 6mm grade coal dry cleaning technology is relatively ripe, mainly contain air jigging, combined type dry separation technology and air auto-monitor sorting technology etc., but the dry separation aspect of Bed for Fine Coal, still be in the experimental study stage at present, do not find industrialized related data.
Utility model content
The purpose of this utility model is to provide a kind of Bed for Fine Coal dry separation system, and to overcome the defect that above-mentioned prior art exists, the utility model lower limit of separation is low, precision is high, and technique is simple, is particularly useful for the coal separation upgrading of water-deficient area.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Bed for Fine Coal dry separation system, comprise screw(-type) feeder, the top of screw(-type) feeder is provided with feed hopper, the port of export of screw(-type) feeder is connected with air swirl separator and primary blower, and the port of export of primary blower is communicated with a jet orifice of air swirl separator, the outlet at bottom end of air swirl separator is connected with tail coal storage bin, and top exit end is connected with the cleaned coal sorting unit for sorting cleaned coal.
Further, air swirl separator is provided with some secondary shooting discharge orifices, and described secondary shooting discharge orifice is all connected to secondary blower.
Further, a described jet orifice and secondary shooting discharge orifice are tangential inlet.
Further, the port of export of primary blower and secondary blower is provided with flowmeter.
Further, a jet orifice of air swirl separator and the arrival end of secondary shooting discharge orifice are provided with Pressure gauge.
Further, cleaned coal sorting unit comprises cyclone dust collector and bag-type dust collector, the top exit end of air swirl separator is connected with the arrival end of cyclone dust collector, the top exit end of cyclone dust collector connects the arrival end of bag-type dust collector, the top exit end of bag-type dust collector is communicated with air, and the outlet at bottom end of cyclone dust collector and bag-type dust collector is all connected with cleaned coal storage bin.
Further, cyclone dust collector comprises the cyclone dust collectors of some series connection, and bag-type dust collector comprises the sack cleaner of some series connection.
Further, cleaned coal sorting unit comprises cyclone dust collectors and a sack cleaner, the top exit end of air swirl separator is connected with the arrival end of cyclone dust collectors, the top exit end of cyclone dust collectors connects the arrival end of sack cleaner, the top exit end of sack cleaner is communicated with air, and the outlet at bottom end of cyclone dust collectors and sack cleaner is connected to the first cleaned coal storage bin and the second cleaned coal storage bin.
Compared with prior art, the utility model has following useful technique effect:
During utility model works, first opened by primary blower, then open screw(-type) feeder, material, under wind-force effect, tangentially enters air swirl separator with certain initial velocity.Under the effect of eddy flow, heavy product and large granular materials is adherent moves downward along wall afterwards, is discharged by underflow; Light product in be formed centrally inward eddy, move upward and to be discharged by overflow, the underflow product of air swirl separator collects tail coal storage bin, cleaned coal sorts out after entering cleaned coal sorting unit by overflow product, native system compact conformation, without the need to water source, is particularly suitable for coal reserves and enriches and the west area of lack of water, technique is simple, economic environmental protection.Meanwhile, sorting granularity lower limit is low, applied widely.
Further, the utility model also comprises secondary blower, and adherent bulky grain can be blowed to inward eddy by light product by Secondary Air, improves clean coal yield and sharpness of separation.
Further, a jet orifice and secondary shooting discharge orifice are and are all tangential direction, can provide larger centrifugal force, be conducive to sorting.
Further, the port of export of primary blower and secondary blower is provided with flowmeter, accurately can control air flow rate.
Further, a jet orifice of air swirl separator and the arrival end of secondary shooting discharge orifice are provided with Pressure gauge, accurately can control the air pressure sent into, and improve clean coal yield and sharpness of separation.
Further, the underflow product of air swirl separator collects tail coal storage bin, overflow product introduces cyclone dust collectors, the underflow of cyclone dust collectors enters the first cleaned coal storage bin, overflow is incorporated into sack cleaner, the coal powder collection collected by sack cleaner is to the second cleaned coal storage bin, clean air then enters air, the cleaned coal that air swirl separator can overflow by cyclone dust collectors and air separation, the air coal dust intermixture that cyclone dust collectors overflow can be separated by sack cleaner further, makes clean air discharge air.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Wherein, 1, air swirl separator; 2, Pressure gauge; 3, cyclone dust collectors; 4, sack cleaner; 5, feed hopper; 6, screw(-type) feeder; 7, flowmeter; 8, primary blower; 9, secondary blower; 10, tail coal storage bin; 11, the first cleaned coal storage bin; 12, the second cleaned coal storage bin.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 1, a kind of Bed for Fine Coal dry separation system, is applicable to the sorting upgrading of water-deficient area to coal.Native system involving vibrations screw(-type) feeder, primary blower 8, secondary blower 9, flowmeter 7, Pressure gauge 2, Combined air swirl separator, cyclone dust collectors 3, sack cleaner 4, cleaned coal and tail coal storage bin etc.Feed bin 5 is set to above screw(-type) feeder 6, screw(-type) feeder 6 regulates delivery rate by frequency converter, control feed thickness, material feeds Combined air swirl separator by primary blower 8, in sorting simultaneously, open secondary blower 9, Secondary Air is fed from the latter half of Combined air swirl separator cylindrical section, Combined air swirl separator is furnished with the blower fan of two bands frequency conversion, there is twice to wind, ensure sharpness of separation, the overflow of Combined air swirl separator connects cyclone dust collectors 3, underflow connects tail coal storage bin 10, cyclone dust collectors 3 overflow connects sack cleaner 4, underflow connects the first cleaned coal storage bin 11, cyclone dust collectors 3 are used for the cleaned coal that overflowed by Combined air swirl separator and air separation, sack cleaner 4 overflow connects air, the coal dust collected then is recovered to the second cleaned coal storage bin 12, the air coal dust intermixture that sack cleaner 4 is used for cyclone dust collectors 3 to overflow is separated further, clean air is made to discharge air.
Below operating process of the present utility model is described further:
When using the utility model to carry out sorting, first opened by primary blower 8, then open screw(-type) feeder 6, material, under wind-force effect, tangentially enters air swirl separator 1 with certain initial velocity.Under the effect of eddy flow, heavy product and large granular materials is adherent moves downward along wall afterwards, is discharged by underflow; Light product in be formed centrally inward eddy, move upward and to be discharged by overflow; Meanwhile, open secondary blower 9, Secondary Air is fed by the secondary shooting discharge orifice of air swirl separator 1, and light for adherent bulky grain product is mainly blowed to inward eddy by Secondary Air, improves clean coal yield and sharpness of separation.The underflow product of air swirl separator 1 collects tail coal storage bin 10, overflow product introduces cyclone dust collectors 3, the underflow of cyclone dust collectors 3 enters the first cleaned coal storage bin 11, overflow is incorporated into sack cleaner 4, the coal powder collection collected by sack cleaner 4 is to the second cleaned coal storage bin 12, and clean air then enters air.
Claims (8)
1. a Bed for Fine Coal dry separation system, it is characterized in that, comprise screw(-type) feeder (6), the top of screw(-type) feeder (6) is provided with feed hopper (5), the port of export of screw(-type) feeder (6) is connected with air swirl separator (1) and primary blower (8), and the port of export of primary blower (8) is communicated with a jet orifice of air swirl separator (1), the outlet at bottom end of air swirl separator (1) is connected with tail coal storage bin (10), top exit end is connected with the cleaned coal sorting unit for sorting cleaned coal.
2. a kind of Bed for Fine Coal dry separation system according to claim 1, it is characterized in that, air swirl separator (1) is provided with some secondary shooting discharge orifices, and described secondary shooting discharge orifice is all connected to secondary blower (9).
3. a kind of Bed for Fine Coal dry separation system according to claim 2, is characterized in that, a described jet orifice and secondary shooting discharge orifice are tangential inlet.
4. a kind of Bed for Fine Coal dry separation system according to claim 2, is characterized in that, the port of export of primary blower (8) and secondary blower (9) is provided with flowmeter (7).
5. a kind of Bed for Fine Coal dry separation system according to claim 2, is characterized in that, a jet orifice of air swirl separator (1) and the arrival end of secondary shooting discharge orifice are provided with Pressure gauge (2).
6. a kind of Bed for Fine Coal dry separation system according to claim 1, it is characterized in that, cleaned coal sorting unit comprises cyclone dust collector and bag-type dust collector, the top exit end of air swirl separator (1) is connected with the arrival end of cyclone dust collector, the top exit end of cyclone dust collector connects the arrival end of bag-type dust collector, the top exit end of bag-type dust collector is communicated with air, and the outlet at bottom end of cyclone dust collector and bag-type dust collector is all connected with cleaned coal storage bin.
7. a kind of Bed for Fine Coal dry separation system according to claim 6, is characterized in that, cyclone dust collector comprises the cyclone dust collectors (3) of some series connection, and bag-type dust collector comprises the sack cleaner (4) of some series connection.
8. a kind of Bed for Fine Coal dry separation system according to claim 1, it is characterized in that, cleaned coal sorting unit comprises a cyclone dust collectors (3) and a sack cleaner (4), the top exit end of air swirl separator (1) is connected with the arrival end of cyclone dust collectors (3), the top exit end of cyclone dust collectors (3) connects the arrival end of sack cleaner (4), the top exit end of sack cleaner (4) is communicated with air, the outlet at bottom end of cyclone dust collectors (3) and sack cleaner (4) is connected to the first cleaned coal storage bin (11) and the second cleaned coal storage bin (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520570254.7U CN204841988U (en) | 2015-07-31 | 2015-07-31 | System is selected separately to particulate coal dry process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520570254.7U CN204841988U (en) | 2015-07-31 | 2015-07-31 | System is selected separately to particulate coal dry process |
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| CN204841988U true CN204841988U (en) | 2015-12-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179676A (en) * | 2016-07-18 | 2016-12-07 | 淮南矿业(集团)有限责任公司 | A kind of dry coal preparation and processing method |
| CN109894286A (en) * | 2019-02-21 | 2019-06-18 | 中国矿业大学 | A kind of particulate mineral dry separation system based on solar energy and heat accumulation |
| CN110899008A (en) * | 2019-04-15 | 2020-03-24 | 江苏集萃工业过程模拟与优化研究所有限公司 | Cyclone filtering combined pyrolysis gas dust removal device and method capable of adjusting flow velocity |
| CN113351486A (en) * | 2021-04-02 | 2021-09-07 | 唐山开远科技有限公司 | Fine particle dry separation and grading dust collection complete device |
-
2015
- 2015-07-31 CN CN201520570254.7U patent/CN204841988U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179676A (en) * | 2016-07-18 | 2016-12-07 | 淮南矿业(集团)有限责任公司 | A kind of dry coal preparation and processing method |
| CN109894286A (en) * | 2019-02-21 | 2019-06-18 | 中国矿业大学 | A kind of particulate mineral dry separation system based on solar energy and heat accumulation |
| CN109894286B (en) * | 2019-02-21 | 2019-12-24 | 中国矿业大学 | Particle mineral dry separation system based on solar energy and heat storage |
| WO2020168722A1 (en) * | 2019-02-21 | 2020-08-27 | 中国矿业大学 | Granular mineral dry sorting system based on solar energy and heat storage |
| CN110899008A (en) * | 2019-04-15 | 2020-03-24 | 江苏集萃工业过程模拟与优化研究所有限公司 | Cyclone filtering combined pyrolysis gas dust removal device and method capable of adjusting flow velocity |
| CN110899008B (en) * | 2019-04-15 | 2021-11-09 | 江苏集萃工业过程模拟与优化研究所有限公司 | Cyclone filtering combined pyrolysis gas dust removal device and method capable of adjusting flow velocity |
| CN113351486A (en) * | 2021-04-02 | 2021-09-07 | 唐山开远科技有限公司 | Fine particle dry separation and grading dust collection complete device |
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