CN109482494A - A kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique - Google Patents
A kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique Download PDFInfo
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- CN109482494A CN109482494A CN201811396076.5A CN201811396076A CN109482494A CN 109482494 A CN109482494 A CN 109482494A CN 201811396076 A CN201811396076 A CN 201811396076A CN 109482494 A CN109482494 A CN 109482494A
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- coal
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- dry
- raw coal
- sieve
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Classifications
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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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/005—General arrangement of separating plant, e.g. flow sheets specially adapted for coal
Abstract
The invention discloses a kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique, this method uses full-dry method technique.Technique is broadly divided into three parts, X-ray intelligence sorting, coarse fraction coal dry cleaning, fine fraction coal dry cleaning.Raw coal to be selected is divided into three grades after screening, three+50mm, 13~50mm, -13mm grade screening products respectively enter X-ray intelligence sorting machine, modular dry method air dense medium fluidized bed dry method cull eliminator, fine fraction dry method cull eliminator, obtain cleaned coal and tail coal.Present invention process process is simple, the efficiency of separation is high, low energy consumption, do not have to water, production cost is low, economic benefit is good.
Description
Technical field
The invention belongs to technical field of mineral processing, and in particular to a kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique,
It is particularly suitable for thermal coal dry separation, solves the problems, such as west area water shortage.
Background technique
Dry coal preparation technology is suitable for the coal separation of drought and water-scarce area, and dry sorting equipment mainly has air jump at present
Eliminate sorting machine, Duplex dry separator and modular dry method air dense medium fluidized bed dry method cull eliminator.But dry coal preparation is deposited at present
In shortcoming, wholegrain grade coal can not be sorted.Currently, establishing wholegrain grade coal separation technique is dry coal preparation institute face
The critical issue faced.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of thermal coal wholegrain grade dry method
Upgrading discharge refuse technique overcomes the wholegrain grade coal separation problem of drought and water-scarce area.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique, raw coal is respectively through X-ray intelligently sorting, modular dry method weight
Medium fluidized bed dry separation, fine fraction coal dry cleaning, obtain cleaned coal and tail coal；Specifically includes the following steps:
A) raw coal prepares: raw coal passes through level-one classifying screen first and is classified, and sieves lower raw coal and enters the classification of second level classifying screen；
B) X-ray intelligently sorts: raw coal send to X-ray intelligence separation system and sorts on the sieve of level-one classifying screen, obtains big
Block spoil and cleaned coal；
C) modular dry method dense medium fluidized bed dry separation: raw coal enters modular dry method dense medium on second level classification sieve
Fluidized bed dry method cull eliminator carries out dry separation, obtains cleaned coal and tail coal；
D) fine fraction coal dry cleaning: raw coal enters fine fraction dry method cull eliminator and is sorted under second level classification sieve,
Obtain cleaned coal and tail coal.
Further, the aperture of the level-one classifying screen is 50mm, and the aperture of second level classifying screen is 13mm；Level-one classifying screen
It is+50mm raw coal on sieve, lower sieve is -50mm raw coal；It is 13~50mm raw coal on second level classification sieve, lower sieve is -13mm raw coal.
Further, the fine fraction dry method cull eliminator is according to coal property using Duplex dry separator or vibration mould
Block formula dry method dense media fluid-bed separator uses Duplex dry separator, if raw coal moisture if raw coal moisture is higher than 6%
Lower than 6%, using vibration module type dry method air dense medium fluidized bed dry method cull eliminator.
Further, to Duplex dry separator and vibration module type dry method dense media fluid-bed separator, pass through tune
The parameter including wind speed, amplitude, frequency, inclination angle is saved, the sorting demand of different densities distribution coal is adapted to.
Further, the step b) handles coarse coal using X-ray intelligence sorting machine, is realized by identification coal maceral
Discharge refuse operation.
The entire assorting room of this technique does not have to water, and without workshop, space occupied is small, high financial profit.
The utility model has the advantages that a kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique provided by the invention, compared with prior art,
It has the advantage that wholegrain grade dry process is applied to the sorting of coal by the present invention, wholegrain grade coal material can be sorted.Respectively
Using X-ray intelligence sorting machine, modular dry method dense medium fluidized bed and the right+50mm of fine fraction dry method cull eliminator, 50~13mm
It is sorted with -13mm coal, it can be achieved that wholegrain grade coal separation, and guarantees sharpness of separation, and dry method cull eliminator Parameter adjustable,
The sorting demand that different densities are distributed coal can be adapted to by adjusting the parameters such as frequency, amplitude and volume of air supply.Its is stable
Reliably, good separation effect, low energy consumption, do not have to water, have wide applicability, be particularly suitable for the separation operation of arid area.
Detailed description of the invention
Fig. 1 is 1 wholegrain grade thermal coal dry separation process flow chart of example of the present invention；
Fig. 2 is 2 wholegrain grade thermal coal dry separation process flow chart of example of the present invention.
Specific embodiment
The invention discloses a kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique, this method uses full-dry method technique.Work
Skill is broadly divided into three parts, and the sorting of X-ray intelligence, modular dry method dense medium fluidized bed dry separation, fine fraction coal are dry
Method sorting.Raw coal to be selected is divided into three grades, three+50mm, 13~50mm, -13mm grade screening products point after screening
Not Jin Ru X-ray intelligence sorting machine, modular dry method air dense medium fluidized bed dry method cull eliminator, fine fraction dry method cull eliminator, obtain
Cleaned coal and tail coal.Present invention process process is simple, the efficiency of separation is high, low energy consumption, do not have to water, production cost is low, economic benefit is good
It is good.
The present invention will be further explained with reference to the accompanying drawings and examples.
A kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique, comprising the following steps:
A) raw coal prepares: mine or coal yard carry out coal to pass through aperture first to be that 50mm classifying screen is classified ,+50mm raw coal on sieve
It send through travelling belt to X-ray intelligence separation system and sorts, obtain bulk spoil and cleaned coal；
B) -50mm raw coal entrance aperture is the classification of 13mm classifying screen, and+13mm raw coal enters coarse fraction combined type dry method on sieve
Sorting machine carries out dry separation, obtains cleaned coal and tail coal；
C) -13mm raw coal enters fine fraction dry method cull eliminator and is sorted, and obtains cleaned coal and tail coal.
The entire process flow of the present invention does not have to water, saves water resource, is particularly suitable for the coal upgrading of drought and water-scarce area
With sorting；Using X-ray intelligence sorting process coarse coal, discharge refuse operation is realized by identification coal maceral；To size fractionated coal
Charcoal uses different dry method cull eliminators, targetedly adapts to the sorting requirement of the grade, improves sharpness of separation；It can be divided by adjusting
Select the sorting demand of machine parameter adaptation different densities distribution coal；Fine fraction dry method cull eliminator can be according to coal property using compound
Formula dry method cull eliminator or vibration module type dry method air dense medium fluidized bed dry method cull eliminator.In addition, present invention process process is simple, nothing
Workshop is needed, can be sorted under outdoor adverse circumstances.
Embodiment 1
As shown in Figure 1, the present embodiment technique is suitable for the coal of raw coal moisture lower (being lower than 6%).Raw coal prepares: mine
Or coal yard carrys out coal and passes through aperture first as the classification of 50mm classifying screen ,+50mm raw coal is sent through travelling belt to X-ray intelligence on sieve
Separation system sorting, obtains bulk spoil and cleaned coal；- 50mm raw coal entrance aperture is the classification of 13mm classifying screen, and+13mm is former on sieve
Coal enters modular dry method air dense medium fluidized bed dry method cull eliminator dry separation, obtains cleaned coal and tail coal；- 13mm raw coal enters thin
Grade dry method cull eliminator is sorted, and cleaned coal and tail coal are obtained, and in the embodiment, fine fraction dry method cull eliminator selects vibration module
Formula dry method air dense medium fluidized bed dry method cull eliminator.
Embodiment 2
As shown in Fig. 2, the present embodiment technique is suitable for the coal that raw coal moisture is higher than 6%.Raw coal prepares: mine or coal storage
Field carrys out coal and passes through aperture first as the classification of 50mm classifying screen, and+50mm raw coal, which is sent through travelling belt to X-ray, on sieve intelligently sorts system
System sorting, obtains bulk spoil and cleaned coal；- 50mm raw coal entrance aperture is the classification of 13mm classifying screen, and+13mm raw coal enters on sieve
Modular dry method air dense medium fluidized bed dry method cull eliminator or Duplex dry separator carry out dry separation, obtain cleaned coal and tail
Coal；- 13mm raw coal enters Duplex dry separator and is sorted, and obtains cleaned coal and tail coal, in the embodiment, fine fraction dry method
Sorting machine selects Duplex dry separator.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of thermal coal wholegrain grade dry method upgrading discharge refuse technique, it is characterised in that: raw coal is respectively through X-ray intelligently sorting, mould
Block formula dry method dense medium fluidized bed dry separation, fine fraction coal dry cleaning, obtain cleaned coal and tail coal；Specifically include following step
It is rapid:
A) raw coal prepares: raw coal passes through level-one classifying screen first and is classified, and sieves lower raw coal and enters the classification of second level classifying screen；
B) X-ray intelligently sorts: raw coal send to X-ray intelligence separation system and sorts on the sieve of level-one classifying screen, obtains bulk cash
Stone and cleaned coal；
C) modular dry method dense medium fluidized bed dry separation: raw coal enters modular dry method dense medium mass flow on second level classification sieve
Change bed dry method cull eliminator and carry out dry separation, obtains cleaned coal and tail coal；
D) fine fraction coal dry cleaning: raw coal enters fine fraction dry method cull eliminator and is sorted under second level classification sieve, obtains
Cleaned coal and tail coal.
2. thermal coal wholegrain grade dry method upgrading discharge refuse technique according to claim 1, it is characterised in that: the level-one classification
The aperture of sieve is 50mm, and the aperture of second level classifying screen is 13mm；It is+50mm raw coal on level-one classification sieve, sieve is lower for -50mm original
Coal；It is 13~50mm raw coal on second level classification sieve, lower sieve is -13mm raw coal.
3. thermal coal wholegrain grade dry method upgrading discharge refuse technique according to claim 1, it is characterised in that: the fine fraction is dry
Method sorting machine uses Duplex dry separator or vibration module type dry method dense media fluid-bed separator according to coal property: if
Raw coal moisture is higher than 6%, using Duplex dry separator；If raw coal moisture is lower than 6%, using vibration module type dry method dense medium
Fluidized bed dry method cull eliminator.
4. thermal coal wholegrain grade dry method upgrading discharge refuse technique according to claim 3, it is characterised in that: to combined type dry method
Sorting machine and vibration module type dry method dense media fluid-bed separator, by adjusting including wind speed, amplitude, frequency, inclination angle
Parameter, adapt to different densities distribution coal sorting demand.
5. thermal coal wholegrain grade dry method upgrading discharge refuse technique according to claim 1, it is characterised in that: the step b) is adopted
Coarse coal is handled with X-ray intelligence sorting machine, discharge refuse operation is realized by identification coal maceral.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811396076.5A CN109482494B (en) | 2018-11-22 | 2018-11-22 | Full-particle-level dry method quality-improving and gangue-discharging process for power coal |
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| CN201811396076.5A CN109482494B (en) | 2018-11-22 | 2018-11-22 | Full-particle-level dry method quality-improving and gangue-discharging process for power coal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064593A (en) * | 2019-04-30 | 2019-07-30 | 宋宏亮 | A kind of gangue solids waste resource recycling and reusing processing unit |
| CN112207041A (en) * | 2020-10-26 | 2021-01-12 | 江西才智重工机械有限公司 | Automatic ore conveying device |
| 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 |
| WO2022095992A1 (en) * | 2020-11-09 | 2022-05-12 | 天津美腾科技股份有限公司 | Combined sorting device and sorting process |
| CN114535094A (en) * | 2022-02-18 | 2022-05-27 | 国家能源集团新疆能源有限责任公司 | Method and system for comprehensively sorting and upgrading low-quality coal |
| CN117282536A (en) * | 2023-11-14 | 2023-12-26 | 海南星界和光科技有限公司 | Comprehensive utilization method of coal gangue |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080702A (en) * | 2015-09-06 | 2015-11-25 | 中国矿业大学 | Efficient coal derived pyrite dry-method enrichment process and system |
| CN105289985A (en) * | 2015-11-20 | 2016-02-03 | 中国矿业大学 | Full-fraction dry method separation clean technology and method for coal |
| CN106179676A (en) * | 2016-07-18 | 2016-12-07 | 淮南矿业(集团)有限责任公司 | A kind of dry coal preparation and processing method |
| CN106607183A (en) * | 2017-02-09 | 2017-05-03 | 中国矿业大学 | Modular high density coal system oil shale quality promoting technology and quality promoting system |
| CN108759313A (en) * | 2018-06-14 | 2018-11-06 | 中国矿业大学 | A kind of brown coal drying-dry separation collaboration optimization method for upgrading and technique |
-
2018
- 2018-11-22 CN CN201811396076.5A patent/CN109482494B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080702A (en) * | 2015-09-06 | 2015-11-25 | 中国矿业大学 | Efficient coal derived pyrite dry-method enrichment process and system |
| CN105289985A (en) * | 2015-11-20 | 2016-02-03 | 中国矿业大学 | Full-fraction dry method separation clean technology and method for coal |
| CN106179676A (en) * | 2016-07-18 | 2016-12-07 | 淮南矿业(集团)有限责任公司 | A kind of dry coal preparation and processing method |
| CN106607183A (en) * | 2017-02-09 | 2017-05-03 | 中国矿业大学 | Modular high density coal system oil shale quality promoting technology and quality promoting system |
| CN108759313A (en) * | 2018-06-14 | 2018-11-06 | 中国矿业大学 | A kind of brown coal drying-dry separation collaboration optimization method for upgrading and technique |
Non-Patent Citations (1)
| Title |
|---|
| 贾金鑫: "动力煤全粒级干法选煤工艺的设计与研究", 《选煤技术》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064593A (en) * | 2019-04-30 | 2019-07-30 | 宋宏亮 | A kind of gangue solids waste resource recycling and reusing processing unit |
| CN112207041A (en) * | 2020-10-26 | 2021-01-12 | 江西才智重工机械有限公司 | Automatic ore conveying device |
| WO2022095992A1 (en) * | 2020-11-09 | 2022-05-12 | 天津美腾科技股份有限公司 | Combined sorting device and sorting process |
| 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 |
| CN114535094A (en) * | 2022-02-18 | 2022-05-27 | 国家能源集团新疆能源有限责任公司 | Method and system for comprehensively sorting and upgrading low-quality coal |
| CN117282536A (en) * | 2023-11-14 | 2023-12-26 | 海南星界和光科技有限公司 | Comprehensive utilization method of coal gangue |
| CN117282536B (en) * | 2023-11-14 | 2024-04-16 | 海南星界和光科技有限公司 | Comprehensive utilization method of coal gangue |
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