CN215198250U - Air-screening sorting device - Google Patents
Air-screening sorting device Download PDFInfo
- Publication number
- CN215198250U CN215198250U CN202120778308.4U CN202120778308U CN215198250U CN 215198250 U CN215198250 U CN 215198250U CN 202120778308 U CN202120778308 U CN 202120778308U CN 215198250 U CN215198250 U CN 215198250U
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- air
- separator
- fluid communication
- dust removal
- screening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B15/00—Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/08—Cleaning arrangements
Abstract
The utility model provides an air screen sorting unit relates to and selects separately technical field, the utility model provides an air screen sorting unit, include: the air screening separator comprises an air screening separator, a first air delivery device and a first dust removal device, wherein an inner cavity of the air screening separator is in fluid communication with the first dust removal device, an air outlet of the first air delivery device is in fluid communication with the air screening separator, and an air inlet of the first air delivery device is in fluid communication with the first dust removal device. The utility model provides a gas sieve sorting unit has alleviated the technical problem that the dry process was selected separately and is easily produced the dust among the prior art, can reduce the mismatch rate of clean coal product and waste rock product simultaneously, improves and selects separately the precision, makes the product index satisfy the requirement.
Description
Technical Field
The utility model belongs to the technical field of the separation technique and specifically relates to an air screen sorting unit is related to.
Background
The coal dressing process generally adopts wet separation, the separation process is complex, water is needed in the process, the coal dressing process is difficult to be applied in water-deficient areas, and the water treatment cost is high. However, when the dry process is used for coal dressing, a large amount of dust is often generated, the processing cost of the dust is high, the effect is not good, and environmental pollution is easily caused. In addition, the gangue discharged by the air-screening separator has larger coal content, and the effective utilization rate of coal is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas sieve sorting unit to solve the problem that among the prior art slack coal dry separation precision is low.
In a first aspect, the utility model provides an air sieving and sorting device, include: the air screening separator, the first air conveying device and the first dust removal device;
the inner cavity of the air screening separator is in fluid communication with the first dust removal device, the air outlet of the first air delivery device is in fluid communication with the air screening separator, and the air inlet of the first air delivery device is in fluid communication with the first dust removal device.
In combination with the first aspect, the present invention provides a first possible embodiment of the first aspect, wherein the inner chamber of the air sieving separator is in fluid communication with a second air delivery device, the second air delivery device being adapted to pump air in the inner chamber of the air sieving separator to reduce the air pressure inside the air sieving separator.
In combination with the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the inner cavity of the air sieving separator is in fluid communication with a second dust removing device, and the second dust removing device is in fluid communication with an air inlet of the second air delivery device.
Combine the second possible implementation mode of first aspect, the utility model provides a third possible implementation mode of first aspect, wherein, the air outlet of second dust removal device and the air intake fluid intercommunication of third dust removal device, the air outlet of third dust removal device with the air inlet intercommunication of second defeated wind device.
In combination with the third possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the inner cavity of the third dust removal device is in fluid communication with the high-pressure gas transmission device.
With reference to the first aspect, the present disclosure provides a fifth possible implementation manner of the first aspect, wherein the gas sieving separator is provided with a repeated sieving state and a discharging state;
in the secondary separation state, an intermediate product outlet of the air screening separator is communicated with a feed inlet of the air screening separator;
and in the discharging state, a gangue outlet of the air screen separator is in fluid communication with a feed inlet of the photoelectric separator.
In combination with the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein the air sieving separator further comprises a pre-treatment assembly, and a discharge port of the pre-treatment assembly is communicated with the air sieving separator.
With reference to the sixth possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein a second screening device is disposed between the pretreatment module and the air screening separator.
In a second aspect, the present invention provides a gas sieving method, comprising the steps of:
introducing gas into a gas sieve separator by adopting a first wind conveying device to realize wind power separation;
and the first air delivery device is adopted to suck the air in the inner cavity of the air screening separator, and the air flowing into the first air delivery device from the air screening separator is filtered through the first dust removal device.
With reference to the second aspect, the present invention provides a first possible embodiment of the second aspect, wherein the gas sieving method further comprises:
introducing an intermediate product discharged by the air screening separator into a feeding port of the air screening separator;
and (4) introducing the gangue containing coal discharged by the gas sieve separator into a photoelectric separator.
The embodiment of the utility model provides a following beneficial effect has been brought: the inner cavity of the air screen separator is communicated with the first dust removal device in a fluid mode, the air outlet of the first air delivery device is communicated with the air screen separator in a fluid mode, the air inlet of the first air delivery device is communicated with the first dust removal device in a fluid mode, the first air delivery device can deliver air into the air screen separator to achieve air separation, dust in the inner cavity of the air screen separator can be sucked, large-particle dust in gas is filtered through the first dust removal device, accordingly, the gas and small-particle dust can circulate inside the air screen separator, dust removal cost is effectively reduced, and the pollution problem caused by dust discharge is eliminated.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an air sieving and sorting apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic flow chart of an air sieving method provided by an embodiment of the present invention.
Icon: 001-air screening separator; 002-a first air delivery device; 003-a first dust removal device; 004-a second air delivery device; 005-second dust removal means; 006-third dust removal device; 007-high pressure gas transmission device; 701-an air compressor; 702-high pressure wind packet; 008-a photoelectric separator; 009-a second sifting device; 010-a pre-treatment component; 011-first screening device; 012-iron remover; 013-breaking the treatment device.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides an air sieving apparatus, including: the air screening separator 001, the first air delivery device 002 and the first dust removal device 003; the inner cavity of the air sieving separator 001 is in fluid communication with the first dust removal device 003, the air outlet of the first air delivery device 002 is in fluid communication with the air sieving separator 001, and the air inlet of the first air delivery device 002 is in fluid communication with the first dust removal device 003.
Specifically, the first air delivery device 002 delivers air into the air sieving separator 001, thereby performing air-force separation on the material entering the air sieving separator 001. And, first air delivery device 002 sucks the gas of gas sieve separator 001 inner chamber, filters the gas that flows into first air delivery device 002 from gas sieve separator 001 through first dust removal device 003 to avoid large granule dust to flow into first air delivery device 002, with this make gas and tiny particle dust at gas sieve separator inner loop, and then eliminate the pollution that the dust is arranged outward and is produced, can reduce dry separation dust removal expense.
It should be noted that, the first dust removal device 003 can adopt a cyclone or a gravity dust removal chamber, or a gravity dust removal chamber is arranged at the air inlet end of the cyclone, and when the air sieving and sorting device is used for coal dressing, large-particle dust obtained by filtering through the first dust removal device 003 can be collected as clean coal.
In the embodiment of the present invention, the inner cavity of the air sieving separator 001 is in fluid communication with the second air delivery device 004, and the second air delivery device 004 is used for pumping the air in the inner cavity of the air sieving separator 001 to reduce the air pressure inside the air sieving separator 001.
Specifically, the second air delivery device 004 sucks the air inside the air screen separator 001, so that the inner cavity of the air screen separator 001 forms a negative pressure state, and the dust inside the air screen separator 001 is prevented from overflowing.
In some embodiments, the gas discharged from the second air transportation device 004 is filtered to prevent the dust from being discharged through the second air transportation device 004.
In this embodiment, the inner cavity of the air sieving separator 001 is in fluid communication with the second dust removal device 005, and the second dust removal device 005 is in fluid communication with the air inlet of the second air delivery device 004. Large particle dust is filtered through the second dust removal device 005, so that large particle dust in the air sieving separator 001 is prevented from entering the second air delivery device 004. The second dust removing device 005 may adopt a cyclone dust collector or a gravity dust removing chamber, or the gravity dust removing chamber is provided at the air inlet end of the cyclone dust collector, and when the air sieving and sorting apparatus is used for coal dressing, large particle dust filtered by the second dust removing device 005 is collected as clean coal.
Further, the air outlet of the second dust removing device 005 is in fluid communication with the air inlet of the third dust removing device 006, and the air outlet of the third dust removing device 006 is in communication with the air inlet of the second air delivery device 004.
Specifically, the third dust removing device 006 may be a bag-type dust remover or a filter cartridge dust remover, and the gas flows through the second dust removing device 005 and the third dust removing device 006 in sequence from the gas sieving separator 001 and is discharged through the second air delivery device 004. The second air delivery device 004 can adopt a draught fan, and gas in the gas sieving separator 001 sequentially flows through the second dust removal device 005, the third dust removal device 006 and the second air delivery device 004 under the suction action of the second air delivery device 004 and is then directly discharged outside.
Further, the lumen of the third dust removal device 006 is in fluid communication with the high pressure gas delivery device 007.
Specifically, the high-pressure gas delivery device 007 includes: air compressor 701 and high-pressure wind package 702, air compressor 701 and high-pressure wind package 702 fluid intercommunication, high-pressure wind package 702 and third dust removal device 006's filter cylinder inner chamber fluid communication. High-pressure gas is delivered through the high-pressure gas delivery device 007, and reversely impacts the third dust removal device 006 through the high-pressure gas, so that dust blocked on the filter element/filter cloth can be removed.
Further, the air sieving separator 001 has a multiple-separation state and a discharge state; in a secondary separation state, an intermediate product outlet of the air sieving separator 001 is communicated with a feed inlet of the air sieving separator 001; in the discharge state, the gangue outlet of the air-sieving separator 001 is in fluid communication with the feed inlet of the photoelectric separator 008.
Specifically, under the state of secondary separation, the middlings products separated by the air screen separator 001 are introduced into the feed inlet of the air screen separator 001 again, so that the separation precision of clean coal products and gangue products is improved. And in a discharging state, discharging gangue and clean coal obtained by separation by using the air sieve separator 001. The clean coal discharged from the gas sieve separator 001 is conveyed to the clean coal collecting region, and the first dust removing device 003, the second dust removing device 005 and the third dust removing device 006 can discharge dust as clean coal to the clean coal collecting region.
Further, the air screening and sorting device further comprises a pretreatment assembly 010, and a discharge port of the pretreatment assembly 010 is communicated with the air screening and sorting machine 001.
Specifically, the pre-processing assembly 010 includes a first screening device 011, which can be set at 80mm, 50mm or 25mm force. For example: the raw material with the particle size of 50mm or less is discharged through the first sieving device 011, the raw material with the particle size of 50mm or more is passed through the iron remover 012, the iron remover 012 can adopt a magnetic force to adsorb iron in the raw material, the raw material without the iron remover is passed through the crushing processing device 013, and the raw material is crushed and processed into granules with the particle size of 50mm or less through the crushing processing device 013.
Further, a second screening device 009 is arranged between the pre-treatment assembly 010 and the air screening separator 001. Products discharged by the pretreatment component 010 are fed into the second screening device 009, clean coal screened by the second screening device 009 is discharged, products on the screen are fed into the air screen separator 001, the air screen separator 001 separates and discharges gangue, clean coal and middlings, the middlings are fed into the photoelectric separator 008, and the middlings are separated again by the photoelectric separator 008, so that the recovery rate of the clean coal products can be improved, the coal carrying rate of the gangue is reduced, and the coal carrying rate of the gangue meets the requirement. Materials which cannot be effectively sorted by the air-sieving separator 001 are screened in advance, so that the processing capacity of the air-sieving separator 001 is greatly improved; in addition, the coal dust in the slack coal can be adhered and agglomerated when the moisture exceeds a certain limit value, so that the air-sieving separator 001 cannot separate the coal dust, the part of the coal dust is sieved in advance, and the technical problem that the air-sieving separator 001 cannot separate the coal dust when the fed moisture is high can be solved.
Example two
As shown in fig. 1 and fig. 2, an air sieving method provided by an embodiment of the present invention includes the following steps: a first air conveying device 002 is adopted to introduce air into the air screening separator 001 to realize wind power separation; the first air delivery device 002 is adopted to suck the air in the inner cavity of the air screen separator 001, and the air flowing into the first air delivery device 002 from the air screen separator 001 is filtered through the first dust removal device 003. First defeated wind device 002 is as the air-blower of air sieve sorter 001, and first defeated wind device 002 can drive the gaseous first dust removal device 003 of the interior gas flow of air sieve sorter 001 to make gaseous and the interior circulation of tiny particle dust at air sieve sorter, reduced the second grade and removed dust link, effectively reduced the dust cost.
Further, the gas flowing to the second air delivery device 004 from the air sieving separator 001 through the second dust removal device 005 and the third dust removal device 006 is in a negative pressure state in the separation chamber of the air sieving separator 001 through the suction effect of the second air delivery device 004, so that the dust overflow in the separation process is avoided.
In an embodiment of the present invention, the air sieving method further includes: the intermediate products discharged from the air screen separator 001 are introduced into a feeding port of the air screen separator 001 and are separated for multiple times through the air screen separator 001, so that the separation precision of the clean coal products and the gangue products is improved. The gangue containing coal discharged from the gas screen separator 001 is introduced into the photoelectric separator 008, and the clean coal in the gangue product discharged from the gas screen separator 001 is recovered by using the photoelectric separator 008, so that the recovery rate of the clean coal product can be improved, the coal carrying rate of the gangue is reduced, and the coal carrying rate of the gangue meets the requirement.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. An air sieving separator comprising: the air screen separator (001), a first air delivery device (002) and a first dust removal device (003);
the inner cavity of the air screening separator (001) is in fluid communication with the first dust removal device (003), the air outlet of the first air delivery device (002) is in fluid communication with the air screening separator (001), and the air inlet of the first air delivery device (002) is in fluid communication with the first dust removal device (003).
2. The air screening apparatus of claim 1, wherein the internal chamber of the air screening machine (001) is in fluid communication with a second air delivery device (004), the second air delivery device (004) being adapted to draw air from the internal chamber of the air screening machine (001) to reduce the air pressure inside the air screening machine (001).
3. The air screening apparatus of claim 2, wherein the inner chamber of the air screening machine (001) is in fluid communication with a second dust extraction means (005), the second dust extraction means (005) being in fluid communication with the air inlet of the second air delivery means (004).
4. The air screening apparatus of claim 3, wherein the air outlet of the second dust removal device (005) is in fluid communication with the air inlet of a third dust removal device (006), and the air outlet of the third dust removal device (006) is in communication with the air inlet of the second air delivery device (004).
5. The air screening apparatus of claim 4, wherein the lumen of the third dust extraction device (006) is in fluid communication with a high pressure gas delivery device (007).
6. The air sifting apparatus of claim 1 wherein the air sifter (001) has a multiple sifting state and a discharging state;
in the secondary separation state, an intermediate product outlet of the air screening separator (001) is communicated with a feed inlet of the air screening separator (001);
and in the discharging state, a gangue outlet of the air screening separator (001) is in fluid communication with a feed inlet of the photoelectric separator (008).
7. The air screening apparatus of claim 1, further comprising a pre-treatment assembly (010), a discharge port of the pre-treatment assembly (010) being in communication with the air screening separator (001).
8. The air sifting apparatus of claim 7, wherein a second sifting device (009) is provided between the pre-processing assembly (010) and the air sifter (001).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020112358126 | 2020-11-09 | ||
| CN202011235812.6A CN112090763A (en) | 2020-11-09 | 2020-11-09 | Air screening separation device and air screening separation method |
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| CN215198250U true CN215198250U (en) | 2021-12-17 |
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| CN202011235812.6A Pending CN112090763A (en) | 2020-11-09 | 2020-11-09 | Air screening separation device and air screening separation method |
| CN202120778308.4U Active CN215198250U (en) | 2020-11-09 | 2021-04-16 | Air-screening sorting device |
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| CN202011235812.6A Pending CN112090763A (en) | 2020-11-09 | 2020-11-09 | Air screening separation device and air screening separation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102839032B (en) * | 2009-11-19 | 2014-01-08 | 李功民 | Dry separation and drying combined device |
| CN101767092B (en) * | 2009-12-30 | 2012-02-08 | 杭州锦江集团有限公司 | Bauxite wind power beneficiation method |
| CN104673343B (en) * | 2015-02-16 | 2017-05-31 | 柳州钢铁股份有限公司 | Enter classification grinding, humidifying technology that the choosing of stove coking coal machine is combined with selection by winnowing |
| CN205473419U (en) * | 2016-01-12 | 2016-08-17 | 中国科学院城市环境研究所 | Preparation facilities of rich phosphorus bio -feritlizer |
| CN207576931U (en) * | 2017-08-20 | 2018-07-06 | 云南智奇工程技术有限公司 | Blade wind point removal of impurities unit |
| CN107596813A (en) * | 2017-10-09 | 2018-01-19 | 成都元始信息科技有限公司 | A kind of sack cleaner with automatic ash removing device |
| CN207628745U (en) * | 2017-11-20 | 2018-07-20 | 广东国绿环境建设投资股份有限公司 | A kind of winnowing machine |
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