CN202061696U - Middlings recleaning device by adopting dense medium coal cleaning - Google Patents
Middlings recleaning device by adopting dense medium coal cleaning Download PDFInfo
- Publication number
- CN202061696U CN202061696U CN2010206966709U CN201020696670U CN202061696U CN 202061696 U CN202061696 U CN 202061696U CN 2010206966709 U CN2010206966709 U CN 2010206966709U CN 201020696670 U CN201020696670 U CN 201020696670U CN 202061696 U CN202061696 U CN 202061696U
- Authority
- CN
- China
- Prior art keywords
- coal
- middlings
- recleaning
- cyclone
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Cyclones (AREA)
Abstract
The utility model discloses a middlings recleaning device by adopting dense medium coal cleaning, which comprises a main washing system device and a middlings recleaning device, wherein the middlings recleaning device is connected with a middlings outlet of a three-product cyclone of the main washing system; the middlings recleaning device comprises a recleaning cyclone; and a product outlet of the recleaning cyclone is connected with a clean coal processing device, a middlings processing device and a gangue processing device of the main washing system respectively. After cleaned raw coals are separated into three products of clean coals, middlings and gangues by the three-product cyclone, the clean coals and the gangues enter a follow-up process, and the middlings enter the recleaning cyclone; and the products acquired by recleaning the middlings enter all the product processes of the main washing system respectively. In the middlings recleaning device by adopting dense medium coal cleaning, the middlings recleaning device is additionally arranged on the basis of the original device, the change of the original processing device is little, the investment is little, the cleaning accuracy and the recovery rate of the clean coals are improved obviously, the cleaned amount of the raw coals is increased obviously, the economic benefit is considerable, the scarce resources are saved, and the effects of energy saving and emission reducing are good.
Description
Technical field:
The utility model relates to coal washing equipment, relates in particular to heavy media coal separation equipment.
Background technology:
The heavy media coal separation technology is an advanced technology, its technology roughly is: go into to wash raw coal after screening, fragmentation, mixing, enter the sorting of three-product cyclone device, sub-elect cleaned coal, middle coal, three kinds of products of spoil, the subsequent technique that three kinds of products that sub-elect enter separately again forms final products.The heavy media coal separation technology is that separating effect or clean coal yield all increase significantly than Coal Jigging Technique, also is at present by the technology of widespread usage.Industry generally believes that the heavy media coal separation technology is ripe relatively, and benefit has reached maximization.Yet through the middle coal of dense medium coal cleaning process is tested, the cleaned coal loss in the discovery in the coal is still higher.Coal preparation plant's cleaned coal being lost in about 9% (ratio of cleaned coal in the middle coal) in middle coal that management is good managed bad coal preparation plant about 15%, on average about 10%.The coal amount accounts for about 30% of raw coal total amount in general, and the cleaned coal in being lost in so in the coal just accounts for always goes into to wash about 3.0% of raw coal amount, goes into to wash the raw coal amount year and be 1,000,000 tons coal preparation plant, and year loss cleaned coal is about 3.0 ten thousand tons.From the above, existing dense medium coal cleaning process still has bigger cleaned coal loss in middle coal, and this technology still has the technology space of promoting, and this is that industry technical staff does not recognize.
The utility model content:
It is a kind of based on existing equipment that the purpose of this utility model is to provide, the heavy media coal separation equipment that clean coal recovery improves.
Coal optional equipment again in the heavy media coal separation of the present utility model comprises main wash system equipment raw coal disintegrating machine, mixing tank or qualified medium bucket, pump, three-product cyclone device and cleaned coal, middle coal, spoil product treatment equipment; Coal optional equipment again during it also comprises, described in coal again optional equipment wash with main that the middle coal export of three-product cyclone device links to each other by conveying equipment in the system; In coal again optional equipment comprise and select cyclone again; The products export that selects cyclone again links to each other by conveying equipment with the main cleaned coal in the system, middle coal, spoil product treatment equipment washed respectively.
Described middle coal optional equipment more also comprises: disintegrating machine, mixing tank, pump; In coal again optional equipment disintegrating machine, mixing tank, pump and select cyclone to link to each other successively again.
The described cyclone that selects again is cleaned coal, middle coal and spoil three-product cyclone device, or:
Cleaned coal and middle coal two product cyclones.
Heavy media coal separation equipment of the present utility model on the basis of existing equipment, has increased middle coal optional equipment again, and the product that middle coal selects again enters the main subsequent treatment process of washing each product in the system and carries out conventional treatment.The utility model changes little to original process equipment, less investment has overcome the technological deficiency that is not realized in the prior art, has further reclaimed the cleaned coal that loses in the coal in original technology.Be that 1,000,000 tons coal preparation plant is an example still to go into to wash the raw coal amount, with the coal separation of original heavy media coal separation technology, year loss cleaned coal is about 3.0 ten thousand tons, utilize equipment coal separation of the present utility model, coal optional equipment again in promptly adding, can reclaim cleaned coal about 1% more, by 1000 yuan/ton of current cleaned coal market prices, the income in coal preparation plant every year can increase about 1,000 ten thousand yuan, the price difference of removing power consumption and electric coal reaches the Master Cost that optional equipment consumes again, and net income increases about 7,000,000 yuan/year, and its economic benefit is very remarkable, particularly for this scarce resource of coking coal, have more significant meaning from the angle of resource and energy-saving and emission-reduction.
Description of drawings:
Fig. 1 is a prior art heavy media coal separation equipment schematic diagram.
Fig. 2 is the utility model equipment schematic diagram.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, original heavy media coal separation equipment comprises before raw coal is selected in and anticipates equipment 1, three-product cyclone device 2 and cleaned coal, middle coal, three kinds of products of spoil treatment facility sieve bend 3, sculping screen 4 separately.Go into to wash raw coal after the screening of selected pre-processing device 1, fragmentation, mixed processing, enter three-product cyclone device 2 and carry out sorting, the cleaned coal that obtains, middle coal, three kinds of products of spoil enter separately sieve bend 3, sculping screen 4 etc. respectively and carry out subsequent technique.
Comprise that the master washes system equipment, three-product cyclone device and cleaned coal, middle coal, spoil product treatment equipment, is characterized in that: it also comprises middle coal optional equipment again, and described middle coal is optional equipment again
Equipment of the present utility model as shown in Figure 2 comprises that the master washes system equipment, also comprises middle coal optional equipment again.The main system equipment of washing comprises that raw coal anticipates equipment 1 (comprising raw coal disintegrating machine, mixing tank or qualified medium bucket, pump), three-product cyclone device 2 and cleaned coal, middle coal, spoil product treatment equipment sieve bend 3, sculping screen 4 before selected; In coal again optional equipment wash with main that the middle coal export of three-product cyclone device 2 links to each other by conveying equipment in the system; In coal again optional equipment mainly comprise and select cyclone 5 again, also comprise disintegrating machine 6, mixing tank 7, pump 8.The products export that selects cyclone 5 again links to each other by conveying equipment with the main cleaned coal of system, middle coal, spoil product treatment equipment washed respectively.
Go into to wash raw coal by after equipment 1 screening, fragmentation, mixing, enter three-product cyclone device 2 and carry out sorting, obtain cleaned coal, middle coal, three kinds of products of spoil, sieve bend, sculping screen that cleaned coal, spoil enter are separately handled, sieve bend, the sculping screen treatment facility of coal during middle coal does not directly enter, but enter middle coal optional equipment again, specifically:
1, the granularity that is crushed to requirement in the disintegrating machine 6 delivered to middle coal by conveying equipment;
2, middle coal is dropped into mixing tank 7, carry out general batch mixing operation and density adjustment;
3, by pump 8 the middle coal in the mixing tank is squeezed into and selected cyclone 5 to carry out sorting again.
Selecting cyclone 5 again can be two product cyclones, and its product is cleaned coal and middle coal, also can be the three-product cyclone device, and its product is cleaned coal, middle coal and spoil.
Middle coal selects the product cleaned coal of gained, middle coal, spoil to be transported to respectively in the equipment of product treatment separately of leading the system of washing again and handles.
Experimental example:
Do four groups of comparison example, go into to wash raw coal and all use Inner Mongol Wuhai area mixed coal, it is identical that every group of example goes into to wash raw coal, but respectively by coal in original heavy media coal separation equipment and the heavy media coal separation of the present utility model again optional equipment carry out sorting.Each is organized example and goes into to wash raw coal index difference.Following table is the index situation (seeing the following form) of each group comparison example:
From above comparison example as can be seen, in the heavy media coal separation of the present utility model coal again optional equipment the sharpness of separation of raw coal is improved a lot, the rate of recovery of cleaned coal improves a lot, the amount of washing of going into of raw coal also obviously increases.
Claims (4)
1. coal optional equipment again in the heavy media coal separation, comprise main wash system equipment raw coal disintegrating machine, mixing tank or qualified medium bucket, pump, three-product cyclone device and cleaned coal, middle coal, spoil product treatment equipment, it is characterized in that: coal optional equipment again during it also comprises, described in coal again optional equipment wash with main that the middle coal export of three-product cyclone device links to each other by conveying equipment in the system; In coal again optional equipment comprise and select cyclone again; The products export that selects cyclone again links to each other by conveying equipment with the main cleaned coal in the system, middle coal, spoil product treatment equipment washed respectively.
2. coal optional equipment again in the heavy media coal separation as claimed in claim 1 is characterized in that: in described coal again optional equipment also comprise: disintegrating machine, mixing tank, pump; In coal again optional equipment disintegrating machine, mixing tank, pump and select cyclone to link to each other successively again.
3. coal optional equipment again in the heavy media coal separation as claimed in claim 1, it is characterized in that: the described cyclone that selects again is cleaned coal, middle coal and spoil three-product cyclone device.
4. coal optional equipment again in the heavy media coal separation as claimed in claim 1, it is characterized in that: the described cyclone that selects again is cleaned coal and middle coal two product cyclones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206966709U CN202061696U (en) | 2010-12-21 | 2010-12-21 | Middlings recleaning device by adopting dense medium coal cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206966709U CN202061696U (en) | 2010-12-21 | 2010-12-21 | Middlings recleaning device by adopting dense medium coal cleaning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202061696U true CN202061696U (en) | 2011-12-07 |
Family
ID=45055578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206966709U Expired - Lifetime CN202061696U (en) | 2010-12-21 | 2010-12-21 | Middlings recleaning device by adopting dense medium coal cleaning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202061696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884869A (en) * | 2019-10-29 | 2020-03-17 | 淮北矿业股份有限公司 | Coal sorting and transporting system |
| CN111437986A (en) * | 2020-03-29 | 2020-07-24 | 新汶矿业集团有限责任公司 | Coal dressing process for on-line recovery of high-ash clean coal from medium coal |
-
2010
- 2010-12-21 CN CN2010206966709U patent/CN202061696U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884869A (en) * | 2019-10-29 | 2020-03-17 | 淮北矿业股份有限公司 | Coal sorting and transporting system |
| CN111437986A (en) * | 2020-03-29 | 2020-07-24 | 新汶矿业集团有限责任公司 | Coal dressing process for on-line recovery of high-ash clean coal from medium coal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179288A (en) | Coal-reselecting process for heavy media coal separation | |
| CN103464272B (en) | A kind of coarse slime two sections of water Jie method for separating | |
| CN109746114B (en) | Separation process of refractory power coal | |
| CN106179717A (en) | A kind of full level of thermal coal is selected in simplified heavy medium sorting process | |
| CN102744145A (en) | Scrubbing process for diatomaceous earth ores | |
| CN104368440A (en) | Novel technology and device for Bayer process-based separation of iron in high-iron red mud | |
| CN101559404A (en) | Middlings crushing and sorting technique | |
| CN104549710A (en) | Three-stage opening compounding separation process and three-stage opening compounding separation system for coarse slime | |
| CN102633888A (en) | Tuberous starch slurry-residue separation technique by screening and pressure filtration | |
| CN106391298A (en) | Closed circuit ore grinding classification method | |
| CN109999991A (en) | A kind of thermal coal dense medium sorting process effectively reducing slime content | |
| CN104826727A (en) | Fine-grained medium coal multistage grinding floating technology and system | |
| CN107008566B (en) | A kind of steam coal separation technique | |
| CN108745622A (en) | A kind of jet coal washing system and washing method | |
| CN202061696U (en) | Middlings recleaning device by adopting dense medium coal cleaning | |
| CN102603900B (en) | High-potential-difference potato starch-residue separation system | |
| CN103342753A (en) | Production method of cassava starch | |
| CN110404665B (en) | Treatment method for dewatering superfine coal slime | |
| CN107008564B (en) | The method of the dense media rate of recovery is improved in a kind of coal preparation technique | |
| CN202752094U (en) | Pulverized coal slime dehydration system | |
| CN109201319B (en) | It is a kind of that based on shunting, individually processing reduces the technique that coal preparation plant's dense media consumes | |
| CN109331992A (en) | A kind of raw coal wholegrain radial sector method for separating | |
| CN208166951U (en) | A kind of coal chemical industry gasified coal water slurry concentrate process units | |
| CN103752428A (en) | Beneficiation method of vanadium titano-magnetite | |
| CN114273074B (en) | Full-size-fraction separation method combining deep powder removal and dry-wet method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Wanming Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |