CN1883812A - Raw coal sorting process - Google Patents
Raw coal sorting process Download PDFInfo
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Abstract
A raw coal separation process with high economic benefit and low cost comprises the steps of : classifying the raw coal by classifying screen; outputting the obtained underscreen materials, and washing and separating overscreen materials in a jigging machine; outputting obtained waste rocks and middlings, inducing the obtained cleaned coal blocks into staged dewatering screen to give underscreen water which is sent into deep cone concentration tank; outputting obtained large-size cleaned coal blocks, inducing the obtained small-size cleaned coal blocks into spin extractor to give underscreen water which is sent into deep cone concentration tank; outputting small-size cleaned coal blocks and inducing the centrifugate into deep cone concentration tank; underflow after condensation by the deep cone concentration tan entering into swirler; underflow in swirler entering into high frequency screen and overflowing liquid entering into slant-tube thickener; overscreen materials of high frequency screen entering into spin extractor and underscreen water entering into deep cone concentration tank; overflowing liquid in deep cone concentration tank entering into slant-tube thickener; overflowing liquid in slant-tube thickener entering into circulating water tank; condensed underflow entering into belt type press filter; outputting obtained coal slime, and the filtrate entering into circulating water tank.
Description
Technical field
The present invention relates to a kind of coal washing method, relate in particular to a kind of raw coal sorting process.
Background technology
Now the general coal preparation technique flow process in each colliery is: coal is promoted by the down-hole and enters raw coal beamhouse, is that the raw coal sizing screen of 50mm carries out classification by the sieve aperture granularity, and its screenings (granularity is less than the coal of 50mm) enters run coal bin through belt conveyer; Oversize (granularity is greater than the coal of 50mm) is through artificial simple picking, enter moving sieve after sorting out bulk spoil and foreign material (as ironware, timber etc.), the spoil that moving sieve is discharged is delivered to hillock or comprehensive utilization, the moving lump coal that filters out enters disintegrating machine, is below the 50mm with the coal particle size reduction to granularity, and then mix with the saturating sieve of moving sieve thing, be transported to run coal bin together with one of the screenings of raw coal sizing screen.The raw coal of run coal bin both can be sold, be again coal preparation plant go into to wash feed coal.During the coal preparation plant coal washing to the raw coal in the run coal bin (granularity is a not grade washing of 0mm～50mm), will make like this coal slime (granularity is that the content of 0mm～0.5mm) is big, the black water complex process, black water treatment facility, equipment are many, the operating cost height, investment is big.
Summary of the invention
The purpose of this invention is to provide a kind of investment and operating cost is low, economic benefit is high raw coal sorting process.
For achieving the above object, the technical solution used in the present invention is:
A kind of raw coal sorting process is characterized in that: comprise the steps:
A, utilize classifying screen that raw coal is carried out classification;
B, with the output of the screenings of above-mentioned steps a gained; The oversize of above-mentioned steps a gained enters jigging machine and washes sorting;
C, spoil, the middle coal of gained after the jigging machine among the above-mentioned steps b washing sorting are exported respectively; The piece cleaned coal of gained enters cleaned coal classification dewatering screen after the jigging machine washing sorting among the above-mentioned steps b; Water after the jigging machine washing sorting among the above-mentioned steps b enters dark awl concentration basin;
D, with the output of the bulk cleaned coal of above-mentioned steps c gained; The fritter cleaned coal of above-mentioned steps c gained enters centrifugal drier; The backwater of the cleaned coal classification dewatering screen among the above-mentioned steps c enters dark awl concentration basin;
E, with the output of the fritter cleaned coal of above-mentioned steps d gained; The centrifugate of centrifugal drier enters dark awl concentration basin among the above-mentioned steps d;
Underflow after dark awl concentration basin concentrates among f, above-mentioned steps c, d, the e enters cyclone;
Cyclone underflow among g, the above-mentioned steps f enters the high frequency sieve; The overflowing liquid of the cyclone among the above-mentioned steps f enters pipe chute thickener;
The oversize of h, above-mentioned steps g medium-high frequency sieve enters the centrifugal drier among the above-mentioned steps e; The backwater of above-mentioned steps g medium-high frequency sieve enters dark awl concentration basin;
The overflowing liquid of dark awl concentration basin enters pipe chute thickener among i, above-mentioned steps c, d, e, g, the h;
The overflowing liquid of pipe chute thickener enters circulating water pool among j, the above-mentioned steps i; Underflow after concentrating among the above-mentioned steps i enters belt filter press;
K, with the output of the coal slime of gained among the above-mentioned steps j, the filtrate water of gained enters circulating water pool;
Recirculated water among l, above-mentioned steps j, the k enters the jigging machine among the above-mentioned steps b.
Described raw coal sorting process is characterized in that: before wherein the oversize of above-mentioned steps a gained enters jigging machine and washes sorting, be introduced into surge bunker.
Described raw coal sorting process is characterized in that: wherein spoil, the middle coal of the washing of the jigging machine among above-mentioned steps b sorting output all dewater before output.
Described raw coal sorting process is characterized in that: wherein the piece cleaned coal and the water of gained enters sieve bend after the washing of the jigging machine among the above-mentioned steps b sorting, and oversize piece cleaned coal enters cleaned coal classification dewatering screen; Water after the jigging machine washing sorting enters dark awl concentration basin.
The present invention only needs the oversize of raw coal sizing screen is washed, and the screenings of raw coal sizing screen need not washing and just can directly output to the product storehouse, reduce the generation of slime content, simplified the facilities and equipment that coal slime is handled to be needed, so investment of the present invention and operating cost is low, economic benefit is high.
Description of drawings
Fig. 1 is a kind of coal preparation technique schematic flow sheet of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described:
As shown in Figure 1, raw coal is that the raw coal sizing screen of 13mm carries out classification through the sieve aperture granularity earlier, and screenings (granularity is less than the coal of 13mm) is transported to smalls product storehouse through belt conveyer; Oversize (coal of granularity between 13mm～50mm) enters surge bunker before the jigging machine, and (surge bunker is used for improving uniformity, the continuity of the raw coal amount that enters jigging machine, guarantee the separating effect of jigging machine), enter into jigging machine by feeder again and go into to wash, sub-elect three kinds of products: coal, light product piece cleaned coal in heavy product spoil, the intermediate by jigging machine.Heavy product spoil is by dehydration of coal tub elevator and belt conveyer, and output is landed and sold or transport to hillock; Coal is by coal tub elevator dehydration and belt conveyer in the intermediate, and sale is landed in output; Light product piece cleaned coal enters sieve bend with water, most of water that sieve bend is sloughed and coal slime enter the pond below the cleaned coal classification dewatering screen, the oversize of sieve bend enters cleaned coal classification dewatering screen, and (this sieve is a double deck screen, sieve diameter is respectively upper strata 13mm, the 0.5mm of lower floor), enter the tubular belt transporter after the cleaned coal dehydration of granularity greater than 13mm and be transported to piece head coal product storehouse, the cleaned coal that granularity is between 0.5mm～13mm is transported to centrifugal drier through belt conveyer, and dehydration back cleaned coal enters piece head coal product storehouse by the tubular belt transporter.The backwater of cleaned coal classification dewatering screen (containing the coal slime of granularity less than 0.5mm) enters dark awl concentration basin with the centrifugate (containing the coal slime of granularity less than 0.3mm) of centrifugal drier and the backwater (containing the coal slime of granularity less than 0.5mm) of sieve bend by pump, underflow after concentrating enters cyclone by pump, and overflowing liquid flows automatically to pipe chute thickener; The cyclone underflow enters the high frequency sieve, and overflow enters pipe chute thickener; The oversize (granularity is greater than the coal slime of 0.3mm) of high frequency sieve enters centrifugal dehydrator, and its backwater (containing the coal slime of granularity less than 0.3mm) returns dark awl concentration basin; Pipe chute thickener concentrates black water, and overflowing liquid is essentially clear water, can be used as recirculated water for jigging machine coal washing usefulness, and the underflow after concentrating enters belt filter press by pump; The coal slime that belt filter press extrudes is landed sales, and filtrate water (being clear water substantially) enters circulating water pool, all recycles as jigging machine coal washing water with the inclined tube overflowing liquid.
In the present embodiment, raw coal shunting chute can be installed before raw coal sizing screen, when raw coal quality is better, (reach the quality index of contract appointment) and directly raw coal is transported to the product loading storehouse, and do not need to carry out again grade washing.
In the present invention, only need the lump coal of granularity between 13mm～50mm is gone into to wash, the coal of granularity between 0mm～13mm then need not go into to wash, reduced the slime content that produces, simplify coal slime and handled the facilities and equipment that need, reduced investment and operating cost, improved economic benefit.The present coal preparation plant's raw coal not coal slime productive rate during grade washing is 5%, and coal slime productive rate of the present invention is 1.5%, and the coal slime productive rate reduces 3.5%, that is to say that 3.5% coal slime has become the smalls sale.Calculate by going into to wash 1,200,000 tons of abilities of raw coal every year, can lack 4.2 ten thousand tons in producing coal mud after the classification, this part coal slime has directly been become smalls by classification, by 200 yuan/ton of coal slime prices, 400 yuan of/ton calculating of smalls price, after the classification owing to produce coal slime less, the corresponding smalls quantity that increased realizes ten thousand yuan of annual increase incomes (400-200) * 4.2=840.
Used equipment can adopt stagger among the present invention, is regardless of tangible floor, has reduced setting height(from bottom), has saved investment.While operating personnel's broad view, the point of standing just can be seen multiple devices, has reduced post number amount, has improved security.Common coal preparation plant needs 300～400 of staff, and only needs 60～70 of staff according to the coal preparation plant that the present invention built.
Among the present invention, except that adopting the armored concrete on a few devices (as jigging machine, cleaned coal classification dewatering screen, high frequency sieve) basis, all the other most equipment adopt lightweight steel construction, reduced construction investment largely, the common coal preparation plant of coal preparation plant that builds equal scale need invest about 1.1 hundred million yuan, then needing 3,500 ten thousand yuan according to the coal preparation plant that the present invention built, is 1/3rd of common coal preparation plant.Owing to adopt the lightweight steel construction construction, can improve construction speed simultaneously, year processing raw coal ability is that 1,200,000 tons coal preparation plant only needs 90～100 days from breaking ground to going into operation, and the construction of the common coal preparation plant of identical scale then needs 1 year.
Capital equipment of the present invention is selected maximization for use, does not establish dual system, has reduced the table of equipment number, installs and concentrates, and floor space is little, and small investment is convenient to centralized Control.
The present invention does not set the setting-out case, selects for use suitable water pump directly to supply water to jigging machine, just can obtain good result, removes constant pressure tank and has simplified technology, reduces brace foundation and has saved investment.(common coal preparation plant establishes a large-scale constant pressure tank at the main building top, get in the constant pressure tank with pump handle water earlier, is supplied water to jigging machine by constant pressure tank again.)
Do not establish the low pressure bellows chamber among the present invention, only directly give the jigging machine air feed, just can satisfy technological requirement fully, reduced by a link, saved investment with air blast.(common coal preparation plant supplies with bellows chamber with wind earlier with air blast, gives the jigging machine air feed again by bellows chamber.)
In the present embodiment, select for use high-efficiency pipe chute thickener, efficient dark awl concentration basin and belt filter press to carry out coal slime and reclaim, realized the wash water closed cycle.
In the present embodiment, select for use the tubular belt transporter to transport the finished product of production, sealing transportation, little, the small investment of environmental pollution are compared with general armored concrete trestle, and the tubular belt transporter adopts lightweight steel construction to support, and cost is reduced to 1/3rd.
In the present embodiment, can adopt full factory centralized Control and full side to be television monitoring, the automaticity height, personnel selection is few.
In the present embodiment, the product storehouse has three: one is piece cleaned coal storehouse, and one is smalls storehouse (granularity is less than the coal of 13mm), and one is that (this storehouse both can be a smalls in uncertain storehouse, also can be quality mixed coal preferably), entrucking or when shipment, can be according to user's contract requirement, but both single variety coal sales, can carry out proportioning with different quality coal in the product storehouse again, carry out product diversity and the sale of fecund product, adaptation to market variations and user's request realize coal blending technology under the storehouse.
Claims (4)
1, a kind of raw coal sorting process is characterized in that: comprise the steps:
A, utilize classifying screen that raw coal is carried out classification;
B, with the output of the screenings of above-mentioned steps a gained; The oversize of above-mentioned steps a gained enters jigging machine and washes sorting;
C, spoil, the middle coal of gained after the jigging machine among the above-mentioned steps b washing sorting are exported respectively; The piece cleaned coal of gained enters cleaned coal classification dewatering screen after the jigging machine washing sorting among the above-mentioned steps b; Water after the jigging machine washing sorting among the above-mentioned steps b enters dark awl concentration basin;
D, with the output of the bulk cleaned coal of above-mentioned steps c gained; The fritter cleaned coal of above-mentioned steps c gained enters centrifugal drier; The backwater of the cleaned coal classification dewatering screen among the above-mentioned steps c enters dark awl concentration basin;
E, with the output of the fritter cleaned coal of above-mentioned steps d gained; The centrifugate of centrifugal drier enters dark awl concentration basin among the above-mentioned steps d;
Underflow after dark awl concentration basin concentrates among f, above-mentioned steps c, d, the e enters cyclone;
Cyclone underflow among g, the above-mentioned steps f enters the high frequency sieve; The overflowing liquid of the cyclone among the above-mentioned steps f enters pipe chute thickener;
The oversize of h, above-mentioned steps g medium-high frequency sieve enters the centrifugal drier among the above-mentioned steps e; The backwater of above-mentioned steps g medium-high frequency sieve enters dark awl concentration basin;
The overflowing liquid of dark awl concentration basin enters pipe chute thickener among i, above-mentioned steps c, d, e, g, the h;
The overflowing liquid of pipe chute thickener enters circulating water pool among j, the above-mentioned steps i; Underflow after concentrating among the above-mentioned steps i enters belt filter press;
K, with the output of the coal slime of gained among the above-mentioned steps j, the filtrate water of gained enters circulating water pool;
Recirculated water among l, above-mentioned steps j, the k enters the jigging machine among the above-mentioned steps b.
2, raw coal sorting process according to claim 1 is characterized in that: before wherein the oversize of above-mentioned steps a gained enters jigging machine and washes sorting, be introduced into surge bunker.
3, raw coal sorting process according to claim 1 is characterized in that: wherein spoil, the middle coal of the washing of the jigging machine among above-mentioned steps b sorting output all dewater before output.
4, raw coal sorting process according to claim 1 is characterized in that: wherein the piece cleaned coal and the water of gained enters sieve bend after the washing of the jigging machine among the above-mentioned steps b sorting, and oversize piece cleaned coal enters cleaned coal classification dewatering screen; Water after the jigging machine washing sorting enters dark awl concentration basin.
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| CNB2006100454156A CN100457281C (en) | 2006-07-08 | 2006-07-08 | Raw coal sorting process |
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| CNB2006100454156A CN100457281C (en) | 2006-07-08 | 2006-07-08 | Raw coal sorting process |
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| CN100457281C CN100457281C (en) | 2009-02-04 |
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| CN102059174A (en) * | 2010-12-19 | 2011-05-18 | 烟台金华选煤工程有限公司 | Cleaned coal dehydration process and equipment combination for realizing same |
| CN102179291A (en) * | 2010-12-31 | 2011-09-14 | 中国神华能源股份有限公司 | Steam coal preparation technique with low coal slime yield |
| CN101491788B (en) * | 2008-10-28 | 2012-06-06 | 刘士伟 | Waste coal slack water coal washing system and technology |
| CN102489391A (en) * | 2011-12-20 | 2012-06-13 | 重庆南桐矿业有限责任公司南桐选煤厂 | High-sulfur power raw coal sorting process |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1147433A1 (en) * | 1981-12-25 | 1985-03-30 | Свердловский Ордена Трудового Красного Знамени Горный Институт Им.В.В.Вахрушева | Method of controlling the process of pneumatic separation |
| JPS61123699A (en) * | 1984-11-20 | 1986-06-11 | Electric Power Dev Co Ltd | Production of deashed slurry with high concentration |
| AU775653B2 (en) * | 2000-10-18 | 2004-08-12 | Aberdare Collieries Pty Ltd | Process for the treatment of raw coal |
| CN1296862A (en) * | 2000-12-16 | 2001-05-30 | 马鹏飞 | Washing separation process and equipment for combined multifunctional apparatus |
| CN2503990Y (en) * | 2001-10-15 | 2002-08-07 | 河南神火煤电股份有限公司 | Coal cleaning and impurity removing system |
| CN1186126C (en) * | 2002-12-31 | 2005-01-26 | 天地科技股份有限公司唐山分公司 | Process for heavy media separation of coarse coal slurry |
-
2006
- 2006-07-08 CN CNB2006100454156A patent/CN100457281C/en not_active Expired - Fee Related
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| CN113908975A (en) * | 2021-09-09 | 2022-01-11 | 华北科技学院(中国煤矿安全技术培训中心) | Dry-wet combined separation method for power coal |
| CN113908975B (en) * | 2021-09-09 | 2024-01-23 | 华北科技学院(中国煤矿安全技术培训中心) | Dry-wet combined sorting method for power coal |
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