CN103495494B - A kind of separation of coarse slime equipment and technique thereof - Google Patents
A kind of separation of coarse slime equipment and technique thereof Download PDFInfo
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- CN103495494B CN103495494B CN201310494127.9A CN201310494127A CN103495494B CN 103495494 B CN103495494 B CN 103495494B CN 201310494127 A CN201310494127 A CN 201310494127A CN 103495494 B CN103495494 B CN 103495494B
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Abstract
The present invention relates to coal preparation plant's coarse slime separating process, particularly a kind of separation of coarse slime equipment and technique thereof. This separation of coarse slime equipment, is characterized in that: comprise TBS coal slurry separator, TBS coal slurry separator comprises that cell body, pan feeding well, turbulence plate, density sensor, actuator, blow-off valve, downflow weir form. Therefore, of the present invention reasonable in design, be easy to realize.
Description
(1) technical field
The present invention relates to coal preparation plant's coarse slime separating process, particularly a kind of separation of coarse slime equipment and technique thereof.
(2) background technology
Coal is the main energy sources of China, accounts for 70% left and right of primary energy at present in China's energy resource structure, and coal is being incited somebody to actionThe principal status of public economy in period of quite growing inherent China energy agent structure can not change. Along with mining mechanization, automationRaising, in coal in China, the content of coal slime is increasing, particularly 1-0.25mm grade coarse granule sorting technology becomes coal separationThe challenge that industry is new.
The main feature of coarse granule coal slime shows the aspects such as content is large, washability is poor. Conventional coarse slime separating processComprise TBS sorting, spiral sorting, the sorting of coal slime dense medium etc. Wherein spiral separating is only applicable to the sorting of easy coal separation; CoalMud dense medium cost is high, high to production management level requirement. Thereby these two kinds of method for separating application have limitation. TBS separating densityWide ranges, cost is low, automaticity is high, obtains applying comparatively widely in recent years in China. But current TBS grder manThere is following drawback in skill:
1) sieve bend easily stops up sieve aperture, then causes centrifuge pan feeding concentration low, causes that centrifuge metals run out.
2) sieve bend cannot effectively remove the high ash content fine grained coal slime in TBS overflow cleaned coal, and the thick cleaned coal of TBS has been causedPollute, cause cleans ash high, do not reach user's requirement.
3) TBS uses thickener overflow water as recirculated water, contains high grey fine grained coal slime in thickener overflow water, enters oneStep has caused pollution to TBS cleaned coal.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides a kind of technique simple, reasonable in design, is easy to realize rough coalMud screening installation and technique thereof.
The present invention is achieved through the following technical solutions:
A kind of separation of coarse slime equipment, is characterized in that: comprise TBS coal slurry separator, TBS coal slurry separator comprise cell body,Pan feeding well, turbulence plate, density sensor, actuator, blow-off valve, downflow weir form.
The coarse slime separating process of described separation of coarse slime equipment, is characterized in that: comprise the following steps:
A) will be selected in coal slime and clear water feeds TBS coal slurry separator (A) and carries out sorting.
B) mine tailing after TBS coal slurry separator (A) sorting enters tail coal system, and TBS overflow flows automatically to frequency conversion fine grainedFurther sorting of separator (B).
C) clear water lays 3 roads along frequency conversion fine grained separator (B) length direction, every together along frequency conversion fine grained separator(B) same full width orientation is sprayed against coal stream, is constantly overturn in coal seam, and the thin mud of high ash sees through screen cloth and enters backwater, and backwater flows automatically toCoal slime thickener (D), frequency conversion fine grained separator (B) oversize enters coal slime centrifuge (C).
D) after coal slime centrifuge (C) dehydration, obtain cleaned coal, centrifugate flows automatically to coal slime thickener (D).
E) after coal slime thickener (D) is concentrated, underflow removes press filteration system, and overflow enters circulating water pool (E).
F) the interior recirculated water of circulating water pool (E) enters circulation and goes to recycle, and redundance enters clearly by overflowPond (F), supplementary clear water also adds clear water reserviors (F).
G) clear water is delivered to TBS coal slurry separator (A) and frequency conversion fine grained separator (B) by the special clarified water pump of TBS (G).
The equipment that described coarse slime separating process is used, is characterized in that: described clarified water pump G adopts adjustable frequency motor,On delivery side of pump pipeline, configure control valve, electromagnetic flowmeter and Pressure gauge, the flow of guarantee clear water and pressure meet TBS coal slime and divideSelect the requirement of machine A.
The invention has the beneficial effects as follows: utilize frequency conversion fine grained separator to combine with clear water, to the thin mud of the high ash of TBS overflowRemove, solved because the thin mud of high ash pollutes and causes the problem that cleans ash is high TBS cleaned coal, thereby improved cleaned coalProduct quality. Compared with traditional handicraft, substantially do not change factory building and arrange, increase the special clarified water pump of TBS; There is technique simple, smartThe advantages such as coal recovery is high, energy-saving and cost-reducing.
(4) brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is process chart of the present invention;
Accompanying drawing 2 is equipment flowsheet of the present invention;
Accompanying drawing 3 is traditional TBS process chart;
In figure, A is TBS coal slurry separator, and B is frequency conversion fine grained separator, and C is coal slime centrifuge, and D is thickener, and E isCirculating water pool, F is clear water reserviors, G is the special clarified water pump of TBS.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment is: a) will be selected in coal slime 1 and clear water 12 feeds TBSCoal slurry separator A carries out sorting, and TBS coal slurry separator A is by cell body, pan feeding well, turbulence plate, density sensor, actuator, dischargeValve, downflow weir form.
B) mine tailing 2 after TBS coal slurry separator A sorting enters tail coal system, and TBS overflow 3 flows automatically to frequency conversion fine grainedThe further sorting of separator B.
C) clear water 12 lays 3 roads along frequency conversion fine grained separator B length direction, every together along frequency conversion fine grained separator BSame full width orientation is sprayed against coal stream, is constantly overturn in coal seam, and the thin mud of high ash sees through screen cloth and enters backwater 5, and backwater 5 flows automatically to coalMud thickener D. Frequency conversion fine grained separator B oversize 4 enters coal slime centrifuge C.
D) after coal slime centrifuge C dehydration, obtain cleaned coal 6, centrifugate 7 flows automatically to coal slime thickener D.
E) after coal slime thickener D is concentrated, underflow 8 removes press filteration system, and overflow 9 enters circulating water pool E.
F) recirculated water enters circulation 10 and goes to recycle in circulating water pool E, and redundance enters by overflow 11Clear water reserviors F, supplements clear water 13 and also adds clear water reserviors F.
G) clear water 12 is delivered to TBS coal slurry separator A and frequency conversion fine grained separator B by the special clarified water pump G of TBS. Clear waterPump G adopts adjustable frequency motor, configures control valve, electromagnetic flowmeter and Pressure gauge on delivery side of pump pipeline, guarantee clear water 12Flow and pressure meet the requirement of TBS coal slurry separator A.
Adopt coarse slime separating process of the present invention, complete slime separation and remove TBS overflow cleaned coal by above stepIn the thin mud of height ash, obtain low ash extract coal product.
Claims (2)
1. a sorting process for separation of coarse slime equipment, is characterized in that: comprise TBS coal slurry separator (A), TBS slime separationMachine (A) comprises that cell body, pan feeding well, turbulence plate, density sensor, actuator, blow-off valve, downflow weir form;
This sorting process comprises the following steps:
A) will be selected in coal slime and clear water feeds TBS coal slurry separator (A) and carries out sorting;
B) mine tailing after TBS coal slurry separator (A) sorting enters tail coal system, and TBS overflow flows automatically to the sorting of frequency conversion fine grainedFurther sorting of machine (B);
C) clear water lays 3 roads along frequency conversion fine grained separator (B) length direction, every complete along frequency conversion fine grained separator (B) togetherCross direction sprays against coal stream, is constantly overturn in coal seam, and the thin mud of high ash sees through screen cloth and enters backwater, and it is dense that backwater flows automatically to coal slimeContracting machine (D), frequency conversion fine grained separator (B) oversize enters coal slime centrifuge (C);
D) after coal slime centrifuge (C) dehydration, obtain cleaned coal, centrifugate flows automatically to coal slime thickener (D);
E) after coal slime thickener (D) is concentrated, underflow removes press filteration system, and overflow enters circulating water pool (E);
F) the interior recirculated water of circulating water pool (E) enters circulation and goes to recycle, and redundance enters clear water reserviors by overflow(F), supplementary clear water also adds clear water reserviors (F);
G) clear water is delivered to TBS coal slurry separator (A) and frequency conversion fine grained separator (B) by the special clarified water pump of TBS (G).
2. the sorting process of separation of coarse slime equipment according to claim 1, is characterized in that: described clarified water pump (G) adoptsAdjustable frequency motor configures control valve, electromagnetic flowmeter and Pressure gauge on delivery side of pump pipeline, ensures flow and the pressure of clear waterMeet the requirement of TBS coal slurry separator (A).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310494127.9A CN103495494B (en) | 2013-10-21 | 2013-10-21 | A kind of separation of coarse slime equipment and technique thereof |
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| CN201310494127.9A CN103495494B (en) | 2013-10-21 | 2013-10-21 | A kind of separation of coarse slime equipment and technique thereof |
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| CN103495494A CN103495494A (en) | 2014-01-08 |
| CN103495494B true CN103495494B (en) | 2016-05-18 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084293B (en) * | 2014-07-29 | 2017-02-15 | 四川达竹煤电（集团）有限责任公司石板选煤发电厂 | Dense medium coarse slime sorting device and sorting process |
| CN104722389B (en) * | 2015-03-02 | 2018-10-30 | 中国矿业大学 | Coal dissociation-is independently sized mixing-bulk flotation technique in a kind of particulate |
| CN106311458A (en) * | 2016-10-10 | 2017-01-11 | 神华集团有限责任公司 | Teeter bed separator (TBS) tailing separation system and separation method |
| CN110404665B (en) * | 2019-07-08 | 2021-07-06 | 陕西永明煤矿有限公司 | Treatment method for dewatering superfine coal slime |
| CN110935210B (en) * | 2019-12-13 | 2021-12-03 | 安徽理工大学 | Compact type multistage rake-free concentration device |
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| CN201676741U (en) * | 2010-04-23 | 2010-12-22 | 中国矿业大学 | Desliming type liquid-solid fluidized bed coarse slime sorting and grading device |
| CN202700634U (en) * | 2012-06-08 | 2013-01-30 | 柳建志 | Coarse slime sorting machine |
| CN202725309U (en) * | 2012-09-01 | 2013-02-13 | 山东科技大学 | Coarse slime separation system |
| CN203124084U (en) * | 2013-03-27 | 2013-08-14 | 北京三矿通科技有限公司 | Tri-product coal slime sorter |
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- 2013-10-21 CN CN201310494127.9A patent/CN103495494B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201676741U (en) * | 2010-04-23 | 2010-12-22 | 中国矿业大学 | Desliming type liquid-solid fluidized bed coarse slime sorting and grading device |
| CN202700634U (en) * | 2012-06-08 | 2013-01-30 | 柳建志 | Coarse slime sorting machine |
| CN202725309U (en) * | 2012-09-01 | 2013-02-13 | 山东科技大学 | Coarse slime separation system |
| CN203124084U (en) * | 2013-03-27 | 2013-08-14 | 北京三矿通科技有限公司 | Tri-product coal slime sorter |
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Address after: 250031 Shandong province Ji'nan City flyover District Dikou Road No. 141 Patentee after: General Technology Group Engineering Design Co., Ltd. Address before: 250031 Shandong province Ji'nan City flyover District Dikou Road No. 141 Patentee before: Coal Industry Jinan Design & Research Co., Ltd. |
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