CN101011679B - Simplified coal slurry dense-medium coal separation process - Google Patents
Simplified coal slurry dense-medium coal separation process Download PDFInfo
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- CN101011679B CN101011679B CN2006101308956A CN200610130895A CN101011679B CN 101011679 B CN101011679 B CN 101011679B CN 2006101308956 A CN2006101308956 A CN 2006101308956A CN 200610130895 A CN200610130895 A CN 200610130895A CN 101011679 B CN101011679 B CN 101011679B
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Abstract
The coal screening process eliminating existing processes like clean coal branching off device, fine coal media barrel and pump, splitting a branch tube on the man tube of the qualified media pump, using part of the branching off of the qualified media pump to provide to the fine coal swirling machine to realize the fine coal media screening. It can further simplify the coal slurry heavy media process. It is reduced in system investment and processing, with improved system reliability, reduced system consumption power, further simplified management and maintenance.
Description
Affiliated technical field
The present invention relates to a kind of coal preparation method, especially relate to a kind of simplified coal slurry dense-medium coal separation process.
Background technology
At present, in the simplified heavy medium coal preparation technique of generally being used, the technology that includes coal slurry dense-medium coal separation process has following characteristics: 1. adopt the method for shunting from system, distribute the circulatory mediator after the de-mediated of part; 2. this part medium that distributes enters into coal slime medium bucket and cushions and prepare; 3. with special-purpose coal slime medium pump the medium for preparing is squeezed into the coal slime cyclone that heavily is situated between and carry out sorting.Just because of three characteristics of this of this technology, make the part flow arrangement of finishing corresponding function must be arranged in the system, equipment such as coal slime medium bucket, coal slime medium pump, increased the system process link thereby bring, increased system's investment, reduced system reliability, increased system's general power, and the problems such as increase that administer and maintain workload.
Summary of the invention
The purpose of this invention is to provide a kind of by replacing part flow arrangement, cancellation coal slime medium bucket, process procedures such as cancellation coal slime medium pump, reach the minimizing process procedure, the investment of minimizing system, improve system reliability, reduce system consumption power, the simplified coal slurry dense-medium coal separation process of streamlining management and maintenance work.
Technical scheme of the present invention is summarized as follows:
A kind of simplified coal slurry dense-medium coal separation process, comprise the existing simplified heavy medium sorting process that generally uses, be characterized in that this simplified coal slurry dense-medium coal separation process is the cleaned coal de-mediated part flow arrangement in the described simplified heavy medium sorting process step, coal slime medium bucket, the cancellation of coal slime medium pump process procedure, and from qualification medium pump directly tell a feed flow arm on be situated between being responsible for, directly supply with the coal slime cyclone realization coal slime sorting that heavily is situated between that heavily is situated between with the part shunting of qualification medium pump.
It is adjustable to send into heavily the be situated between parameter of shunt volume of sorting of coal slime in this coal preparation technique.
Sending into heavily the be situated between adjusting of shunt volume parameter of sorting of coal slime in this coal preparation technique is realized by the adjusting device of installing on described arm.
Sending into heavily the be situated between adjusting of shunt volume parameter of sorting of coal slime in this coal preparation technique is realized by the adjusting device of installing on heavily being situated between cyclone in described coal slime.
Send in this coal preparation technique coal slime heavily be situated between sorting the shunt volume parameter adjusting by regulate described coal slime when heavily being situated between cyclone what of work number realize.
The described coal slime cyclone that heavily is situated between is two.
The described coal slime cyclone that heavily is situated between is a plurality of.
In sum, advantage of the present invention is: process procedure reduces, and system's investment reduces, and system reliability improves, and system consumption power reduces, and it is further simple to administer and maintain work, is the coal slurry dense-medium coal separation process of more simplifying in a kind of present coal separation industry.
Description of drawings
Fig. 1 represents a kind of typical simplified heavy medium sorting process schematic flow sheet that generally uses now
Fig. 2 represents a kind of simplified coal slurry dense-medium coal separation process schematic flow sheet
The specific embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is done as detailed below:
Fig. 1 is a kind of typical simplified heavy medium sorting process flow process of generally using now, Fig. 2 represents a kind of simplified coal slurry dense-medium coal separation process flow process, from two figure contrast as can be seen: technology shown in Figure 2 only is to have reduced shunting (part flow arrangement) 7, coal slime medium bucket 10, coal slime medium pump 14 these three process procedures than technology difference shown in Figure 1, and directly tell an arm on Jie main road, the directly supply sorting (coal slime heavily be situated between cyclone) 15 that heavily is situated between from qualification medium pump.
Technical process comprises the steps:
A. the qualified medium that raw coal 1 and qualification medium pump 17 are sent here is sent into heavy medium cyclone 2 and is carried out dense medium separation;
B. products obtained therefrom cleaned coal and middle coal and spoil are carried out a de-mediated 3 of cleaned coal, a de-mediated 4 of middle coal, a de-mediated 5 of spoil respectively, medium enters qualified medium bucket 16 under the sieve of de-mediated gained, wherein the top grade next step that enters of the sieve of de-mediated gained;
C. three kinds of products from step b are carried out cleaned coal secondary de-mediated classification 6, middle coal secondary de-mediated 8, spoil secondary de-mediated 9 respectively, the selected sieve of wherein said three kinds of products is top grade to be respectively coal 11 and piece spoil 12 in piece cleaned coal 18 and the piece;
D. middle coal secondary de-mediated 8 and following rare Jie of spoil secondary de-mediated 9 gained sieve to above-mentioned steps c sends to middle cash magnetic separation 20 systems;
E. rare Jie under the cleaned coal secondary de-mediated classification 6 gained sieve of above-mentioned steps c is sent to cleaned coal magnetic separation 19 systems;
F. the cleaned coal secondary de-mediated classification 6 gained sieve of above-mentioned steps c is gone up last essence and send into centrifugal dehydration 13 links, wherein the gained sieve is gone up solid product and is sent into piece cleaned coal 18 links, and gained sieve fluid product is down sent into cleaned coal magnetic separation 19 systems;
G. above-mentioned steps b is sent into the circulatory mediator of qualified medium bucket 16, make qualified medium after, recycle by qualification medium pump 17 feed systems, the coal slime sorting 15 that heavily is situated between is sent in wherein a part of shunting;
H. to the coal slime of above-mentioned steps g sorting 15 products obtained therefroms that heavily are situated between, wherein cleaned coal magnetic separation 19 systems are sent in overflow, and underflow is sent to middle cash magnetic separation 20 systems.
Cleaned coal magnetic separation 19 systems in the above-mentioned processing step and middle cash magnetic separation 20 systems, and concentrating of not indicating on the figure, recovery, flotation, press filtration, circulation, moisturizing or the like system is routine techniques, no longer narration here.
Based on same principle and method, the present invention also can be designed to the shunting that parameter can be regulated at any time with sending into heavily be situated between this a part of shunting of sorting 15 of coal slime in the technology shown in Figure 2.
Based on same principle and method, the present invention also can will send into heavily the be situated between regulated quantity size of this a part of shunt volume parameter of sorting 15 of coal slime in the technology shown in Figure 2, be designed to by guarantee that described main system can determine at any time by requirements of one's work all the time under preferable work condition state.
Based on same principle and method, the present invention also can be designed to by realizing with the computer automatic control system of described main system running parameter automatic monitored control system interlock sending into heavily the be situated between adjusting of this a part of shunt volume parameter of sorting 15 of coal slime in the technology shown in Figure 2.
Based on same principle and method, the present invention also can be designed to be realized by the adjusting device that is installed on the described arm with sending into heavily be situated between this a part of bypass flow parameter adjustment of sorting 15 of coal slime in the technology shown in Figure 2.
Based on same principle and method, the present invention also can will send into heavily be situated between this a part of bypass flow parameter adjustment of sorting 15 of coal slime in the technology shown in Figure 2, is designed to realize by being installed in the adjusting device that described coal slime heavily is situated between on the cyclone.
Based on same principle and method, the present invention also can will send into heavily be situated between this a part of bypass flow parameter adjustment of sorting 15 of coal slime in the technology shown in Figure 2, be designed to by regulate described coal slime when heavily being situated between cyclone what of work number realize.
Based on same principle and method, the present invention's coal slime of sorting 15 cyclone design that heavily is situated between that also coal slime in the technology shown in Figure 2 heavily can be situated between is two.
Based on same principle and method, the present invention's coal slime of sorting 15 cyclone design that heavily is situated between that also coal slime in the technology shown in Figure 2 heavily can be situated between is a plurality of.
In sum, above embodiment is described as the basis with a kind of typical simplified heavy medium sorting process flow process of now generally using shown in Figure 1, based on same principle and method, in other various heavy Jie's sorting process that the present invention also can be incorporated into present use with the principle and the method for technology shown in Figure 2, realize the simplified coal slurry dense-medium coal separation process of corresponding form equally.
As mentioned above, adopt a kind of simplified coal slurry dense-medium coal separation process of the present invention, can obtain the minimizing process procedure, the investment of minimizing system, improve system reliability, reducing system consumption power, improve the effect of the work that administers and maintains, is the coal slurry dense-medium coal separation process of more simplifying in a kind of present coal separation industry.
The invention discloses a kind of simplified coal slurry dense-medium coal separation process; though more than enumerated less embodiment; but for those of ordinary skill in the art; to some remodeling that the present invention did, improvement, replacement etc.; perhaps above-mentioned embodiment is done any combination and is changed, and all drops within protection scope of the present invention.
Claims (7)
1. simplified coal slurry dense-medium coal separation process, comprise the existing simplified heavy medium sorting process that generally uses, it is characterized in that: this simplified coal slurry dense-medium coal separation process is the cleaned coal de-mediated part flow arrangement in the described simplified heavy medium sorting process step, coal slime medium bucket, the cancellation of coal slime medium pump process procedure, and from qualification medium pump directly tell a feed flow arm on be situated between being responsible for, directly supply with the coal slime cyclone realization coal slime sorting that heavily is situated between that heavily is situated between with the part shunting of qualification medium pump.
2. a kind of simplified coal slurry dense-medium coal separation process according to claim 1 is characterized in that: it is adjustable to send into heavily the be situated between parameter of shunt volume of sorting of coal slime in this coal preparation technique.
3. a kind of simplified coal slurry dense-medium coal separation process according to claim 2 is characterized in that: send into heavily the be situated between adjusting of shunt volume parameter of sorting of coal slime in this coal preparation technique and realized by the adjusting device of installing on described arm.
4. a kind of simplified coal slurry dense-medium coal separation process according to claim 2 is characterized in that: send into heavily the be situated between adjusting of shunt volume parameter of sorting of coal slime in this coal preparation technique and realized by the adjusting device of installing on heavily being situated between cyclone in described coal slime.
5. a kind of simplified coal slurry dense-medium coal separation process according to claim 2 is characterized in that: send in this coal preparation technique coal slime heavily be situated between sorting the shunt volume parameter adjusting by regulate described coal slime when heavily being situated between cyclone what of work number realize.
6. a kind of simplified coal slurry dense-medium coal separation process according to claim 1 is characterized in that: the described coal slime cyclone that heavily is situated between is two.
7. a kind of simplified coal slurry dense-medium coal separation process according to claim 1 is characterized in that: the described coal slime cyclone that heavily is situated between is a plurality of.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101308956A CN101011679B (en) | 2006-12-05 | 2006-12-31 | Simplified coal slurry dense-medium coal separation process |
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| CN200610163461 | 2006-12-05 | ||
| CN200610163461.6 | 2006-12-05 | ||
| CN2006101308956A CN101011679B (en) | 2006-12-05 | 2006-12-31 | Simplified coal slurry dense-medium coal separation process |
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| CN101011679A CN101011679A (en) | 2007-08-08 |
| CN101011679B true CN101011679B (en) | 2010-10-06 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101455992B (en) * | 2008-12-10 | 2012-05-02 | 重庆南桐矿业有限责任公司南桐选煤厂 | Power coal and sulfur concentrate sorting method and special device thereof |
| CN101559402B (en) * | 2009-05-19 | 2012-08-01 | 昆明理工大学 | Method for purifying high-ash coke powder |
| CN103203280B (en) * | 2012-06-20 | 2015-06-03 | 安徽恒源煤电股份有限公司 | Dense-medium preparation technology for optimizing coal slime |
| CN105944823A (en) * | 2014-03-10 | 2016-09-21 | 衢州市易凡设计有限公司 | Equipment for washing high-ash, high-mud and high-gangue stone coal |
| CN104226465A (en) * | 2014-09-17 | 2014-12-24 | 中国矿业大学(北京) | Gravity separation and kerogen enrichment technology of oil shale |
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN110170370B (en) * | 2019-05-10 | 2021-04-02 | 唐山森普工程设计有限公司 | System and process for reducing lower limit of gravity separation granularity of dense medium coal preparation plant |
| CN110280381A (en) * | 2019-06-30 | 2019-09-27 | 唐山森普工程设计有限公司 | The treatment process of spoil de-mediated |
| CN110523524B (en) * | 2019-08-30 | 2022-03-04 | 中煤科工集团唐山研究院有限公司 | Simplified sorting process for full-grade sorting of anthracite |
| CN113262874B (en) * | 2021-05-12 | 2022-02-08 | 乌海市广源洗煤有限责任公司 | Coal re-extraction process in coking coal |
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| US4795037A (en) * | 1986-05-07 | 1989-01-03 | Rich Jr John W | Process for separating high ash coal from refuse |
| CN1424151A (en) * | 2002-12-31 | 2003-06-18 | 天地科技股份有限公司唐山分公司 | Process for heavy media separation of coarse coal slurry |
| CN1465441A (en) * | 2002-06-26 | 2004-01-07 | 王宜强 | Dense-media and flotation combined coal-dressing optimization method |
| CN1485148A (en) * | 2002-09-24 | 2004-03-31 | 太西集团有限责任公司太西洗煤厂 | Smokeless ultralow ash content pure coal and the production technology thereof |
| CN1799699A (en) * | 2006-01-13 | 2006-07-12 | 煤炭科学研究总院唐山分院 | Process for separating phosphate ore by three products heavy medium cyclone |
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2006
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4795037A (en) * | 1986-05-07 | 1989-01-03 | Rich Jr John W | Process for separating high ash coal from refuse |
| CN1465441A (en) * | 2002-06-26 | 2004-01-07 | 王宜强 | Dense-media and flotation combined coal-dressing optimization method |
| CN1485148A (en) * | 2002-09-24 | 2004-03-31 | 太西集团有限责任公司太西洗煤厂 | Smokeless ultralow ash content pure coal and the production technology thereof |
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