CN109604047A - It is a kind of based on the tailing recycling technique optimized product structure and system - Google Patents
It is a kind of based on the tailing recycling technique optimized product structure and system Download PDFInfo
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- CN109604047A CN109604047A CN201811564787.9A CN201811564787A CN109604047A CN 109604047 A CN109604047 A CN 109604047A CN 201811564787 A CN201811564787 A CN 201811564787A CN 109604047 A CN109604047 A CN 109604047A
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- coal
- tailing
- slime
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- 238000004064 recycling Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003245 coal Substances 0.000 claims abstract description 74
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 239000008187 granular material Substances 0.000 claims abstract description 9
- 239000002562 thickening agent Substances 0.000 claims description 15
- 238000005188 flotation Methods 0.000 claims description 14
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- 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 present invention relates to the technical field of coal separation, specially a kind of tailing recycling technique and system optimized product structure is particularly suitable for the efficient recycling system of coal slime of tailing recycling technique.To reduce coal slime calorific value, it optimizes product structure, in not influencing under the premise of product of coal quality, tailing recycling technique is innovated, consideration, which uniformly mixes coal slime, is assigned to middle coal, middle coal is converted by part coarse granule coal slime, product price difference is found, Business Economic Benefit is improved, in the program, partial concentration bottom of pond stream is driven into separation of coarse slime system TBS tailing high-frequency screen, realizes that coal slime uniformly mixes the effect for being assigned to middle coal.
Description
Technical field
The present invention relates to the technical field of coal separation, specially a kind of tailing recycling technique optimized product structure and it is
System, is particularly suitable for the efficient recycling system of coal slime of tailing recycling technique.
Background technique
Three factory, the Inner Mongol Xin Kuang energy coal washing branch company belongs to mine type Oversized Coking Coal Cleaning Plant, which carries Great Wall San Kuang original
Coal enters task of washing, and designs 5,000,000 tons/year of washing ability.
For three factory's floatation system of the Inner Mongol Xin Kuang energy coal washing branch company in original design, flotation column need to install six, but consider
Construction fund was nervous at that time, only installed four during installation, remaining two are not installed.In actual production process, due to floating
Select system circulation amount larger, four flotation columns are not able to satisfy production requirement, and system is caused to run coal, and part cleaned coal enters filters pressing system
System is changed into coal slime, and final coal slime ash content is only 38% or so, and calorific value is up to 4000 kilocalories.In addition, concentration filter press need to have specially
The nurse of post machine, often adjusts, and personnel cost is also high；Filter press equipment appurtenance is more, and repair and maintenance amount is big, produces maintenance cost
It is high.
Therefore, it is necessary to be recycled cleaned coal again, increases profit for enterprise, reduce unnecessary loss, at black water
Reason system loading deficiency has seriously affected further increasing for coal separation yield, solves this problem and has become ought being engaged in for coal preparation plant
It is anxious.
Summary of the invention
It the purpose of the invention is to reduce coal slime calorific value, optimizes product structure, recycles cleaned coal, provide one kind and be based on
The tailing recycling technique and system optimized product structure.For reduction coal slime calorific value, optimize product structure, the coal in not influencing
Under the premise of product quality, tailing recycling technique is innovated, consideration, which uniformly mixes coal slime, is assigned to middle coal, by part coarse granule coal slime
It is converted into middle coal, finds product price difference, improve Business Economic Benefit, in the program, partial concentration bottom of pond stream is driven into rough coal
In mud separation system TBS tailing high-frequency screen, realize that coal slime uniformly mixes the effect for being assigned to middle coal.
To achieve the above object, the invention adopts the following technical scheme:
It is a kind of based on the tailing recycling technique optimized product structure, which is characterized in that partial concentration bottom of pond stream is driven into slightly
It in slime separation system TBS tailing high-frequency screen, realizes that coal slime uniformly mixes and is assigned to middle coal, converts part coarse granule coal slime to
Coal.
Further, of the invention based on the tailing recycling technique optimized product structure, specific steps are as follows: firstly, adopting
200-13mm lump coal is sorted with dense-medium shallow-tank；Then using has two product dense medium cyclone masters of pressure to select 50-1.0mm again；Then it adopts
1.0-0.25mm coarse slime is sorted with TBS sorting machine (hindered bed separator)；Then microbubble swirl column flotation-is used
0.25mm fine grained coal slime；Then using fast opening pressure filter dehydration recycling flotation concentrate；Finally using concentration+filters pressing recycling
Mode recycles flotation tailing, then partial concentration bottom of pond stream is driven into separation of coarse slime system TBS tailing high-frequency screen, realizes coal
Mud, which is uniformly mixed, is assigned to middle coal, converts middle coal for part coarse granule coal slime.
Technical characterstic based on the tailing recycling technique optimized product structure of the invention is also:
The partial concentration bottom of pond stream, is the 1/3-1/2 of concentration basin underflow total amount.
Another object of the present invention is to provide a kind of based on the tailing recycling system optimized product structure, and feature exists
In, including sequentially connected dense-medium shallow-tank, have pressure two product dense medium cyclones, TBS sorting machine, microbubble swirl flotation column, open fastly
Formula filter press, concentration filter press；It further include thickener underflow pump, which pumps one end and concentration filter press concentration basin phase
Even, the other end of thickener underflow pump is connected to the high-frequency screen of TBS sorting machine.
Based on the characteristics of the tailing recycling system optimized product structure in addition, thickener underflow pump lift is high.
Further, it is 38 meters that thickener underflow, which is pumped to the pipeline of TBS sorting machine high-frequency screen,.
The invention has the benefit that
It is of the invention based on the tailing recycling technique optimized product structure, partial concentration bottom of pond stream is driven into separation of coarse slime
In system TBS tailing high-frequency screen, realizes that coal slime is uniformly mixed and be assigned to middle coal, convert middle coal for part coarse granule coal slime, reduce coal
Mud calorific value, optimizes product structure, and innovates tailing recycling technique, improves Business Economic Benefit.
It is of the invention based on the tailing recycling system optimized product structure, the thickener underflow pump is by partial concentration pond
Underflow is driven into separation of coarse slime system TBS tailing high-frequency screen, realizes that coal slime uniformly mixes the effect for being assigned to middle coal.
High frequency shale shaker is effective equipment of Slime sizing & dewatering, it and filter press cooperation can solve filter press excess load
Problem can reduce investment and the production cost of slurry circulating system.Its feature fine grained first is that the upper filtering layer of dependence sieve shuts off
With bed of material extrusion dehydration, realize that the big screen slot that common vibrating screen can not be completed recycles fine grain work；Second is that having vibration
The feature that intensity is big, working frequency is high, screening efficiency are up to 70% or more.Due to screening efficiency height, it is negative that circulation can be greatly lowered
Qualified grain size content in lotus and oversize.
In addition, high-frequency screen only need to carry out inspection after adjusting, it is not required to set dedicated driver, reduces personnel cost, it is high
It is small that maintenance is repaired in frequency screening, puts into low.
In short, system of the invention, equipment operation is simple, and smooth running is reliable, and processing performance is good, and production accident is few.
Technology of the invention works well it has been proved by practice that operating is reliable, can with partial reduction coal slime filter press load,
It is as follows using condition of production comparison before and after high-frequency screen to recycle coarse slime.
Table 1 is using preceding to Contrast on effect table
As can be seen from Table 1: high-frequency screen using effect is good, and treating capacity can be significantly increased with feed thickness raising, and product
Moisture is low, can play the role of recycling coarse slime completely.
Detailed description of the invention
Fig. 1 is the flow diagram of tailing recycling technique of the invention.
Fig. 2 is the structural schematic diagram for being tailing recycling system of the invention.
Wherein, 1- dense-medium shallow-tank, 2-, which has, presses two product dense medium cyclones, 3- TBS sorting machine, 4- microbubble swirl flotation column,
Filter press, 7- thickener underflow pump is concentrated in 5- fast opening pressure filter, 6-.
Specific embodiment
Implementation of the invention is further described with reference to the accompanying drawing.
Embodiment 1
It is a kind of based on the tailing recycling technique optimized product structure, partial concentration bottom of pond stream is driven into separation of coarse slime system
In TBS tailing high-frequency screen, realizes that coal slime is uniformly mixed and be assigned to middle coal, convert middle coal for part coarse granule coal slime.Specific steps are as follows:
Firstly, sorting 200-13mm lump coal using dense-medium shallow-tank；Then using has two product dense medium cyclone masters of pressure to select 50-1.0mm again；
Then 1.0-0.25mm coarse slime is sorted using TBS sorting machine (hindered bed separator)；Then floating using microbubble swirl flotation column
Choosing -0.25mm fine grained coal slime；Then using fast opening pressure filter dehydration recycling flotation concentrate；Finally returned using concentration+filters pressing
The mode of receipts recycles flotation tailing, then partial concentration bottom of pond stream is driven into separation of coarse slime system TBS tailing high-frequency screen, real
Existing coal slime, which is uniformly mixed, is assigned to middle coal, converts middle coal for part coarse granule coal slime.
The partial concentration bottom of pond stream, is the 1/3-1/2 of concentration basin underflow total amount.
Embodiment 2
It is a kind of based on the tailing recycling system optimized product structure, including sequentially connected dense-medium shallow-tank 1, have two product weights of pressure
Jie's cyclone 2, TBS sorting machine 3, microbubble swirl flotation column 4, fast opening pressure filter 5, concentration filter press 7；It further include thickener bottom
Stream pump 7, the thickener underflow pump one end and are connected with concentration filter press concentration basin, and the other end of thickener underflow pump is connected to
The high-frequency screen of TBS sorting machine；Thickener underflow pump lift is high；It is 38 that thickener underflow, which is pumped to the pipeline of TBS sorting machine high-frequency screen,
Rice.
By increasing by 38 meters of underflow pumps to TBS high-frequency screen pipeline, partial concentration bottom of pond stream is driven into separation of coarse slime system
It unites in TBS tailing high-frequency screen, realizes that coal slime uniformly mixes the effect for being assigned to middle coal.
Above-described embodiment is used for illustrative purposes only, and is not limitation of the present invention, the skill of technical field
Without departing from the inventive concept of the premise, various modifications and improvements can be made by art personnel, these belong to guarantor of the present invention
Protect range.Therefore, the scope of the present invention should be limited with each claim.
Claims (6)
1. a kind of based on the tailing recycling technique optimized product structure, which is characterized in that partial concentration bottom of pond stream to be driven into
It in separation of coarse slime system TBS tailing high-frequency screen, realizes that coal slime uniformly mixes and is assigned to middle coal, converts part coarse granule coal slime to
Coal.
2. according to claim 1 based on the tailing recycling technique optimized product structure, which is characterized in that specific steps
Are as follows: firstly, sorting 200-13mm lump coal using dense-medium shallow-tank；Then using has two product dense medium cyclone masters of pressure to select 50- again
1.0mm；Then 1.0-0.25mm coarse slime is sorted using TBS sorting machine；Then microbubble swirl column flotation -0.25mm is used
Fine grained coal slime；Then using fast opening pressure filter dehydration recycling flotation concentrate；Finally returned by the way of concentration+filters pressing recycling
Flotation tailing is received, then partial concentration bottom of pond stream is driven into separation of coarse slime system TBS tailing high-frequency screen, realizes that coal slime is uniform
It mixes and is assigned to middle coal, convert middle coal for part coarse granule coal slime.
3. according to claim 1 based on the tailing recycling technique optimized product structure, which is characterized in that the portion
Divide concentration basin underflow, is the 1/3-1/2 of concentration basin underflow total amount.
4. as described in claim 1 based on the tailing recycling system optimized product structure, which is characterized in that including successively connecting
The dense-medium shallow-tank that connects has pressure two product dense medium cyclones, TBS sorting machine, microbubble swirl flotation column, fast opening pressure filter, concentration
Filter press；It further include thickener underflow pump, which pumps one end and be connected with concentration filter press concentration basin, the thickener bottom
The other end of stream pump is connected to the high-frequency screen of TBS sorting machine.
5. according to claim 1 based on the tailing recycling system optimized product structure, which is characterized in that thickener bottom
It is high to flow pump lift.
6. according to claim 1 based on the tailing recycling system optimized product structure, which is characterized in that thickener bottom
The pipeline of stream pump to TBS sorting machine high-frequency screen is 38 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564787.9A CN109604047A (en) | 2018-12-20 | 2018-12-20 | It is a kind of based on the tailing recycling technique optimized product structure and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811564787.9A CN109604047A (en) | 2018-12-20 | 2018-12-20 | It is a kind of based on the tailing recycling technique optimized product structure and system |
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| CN109604047A true CN109604047A (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811564787.9A Pending CN109604047A (en) | 2018-12-20 | 2018-12-20 | It is a kind of based on the tailing recycling technique optimized product structure and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700169A (en) * | 2022-01-17 | 2022-07-05 | 淮北矿业股份有限公司 | Separation process suitable for treating fine-grain hard-dressing coking coal with high middling coal content |
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|---|---|---|---|---|
| CN101024211A (en) * | 2007-03-26 | 2007-08-29 | 开滦(集团)有限责任公司煤业分公司 | Floating tail-coal graded recovering process |
| CN102284354A (en) * | 2011-09-13 | 2011-12-21 | 永城煤电控股集团有限公司 | Coarse slime separating process |
| CN103240168A (en) * | 2013-05-08 | 2013-08-14 | 中国矿业大学 | Classifying, separating and dewatering method for high-ash-content difficultly-separated coal slime |
| CN105080701A (en) * | 2015-09-02 | 2015-11-25 | 中国矿业大学 | Separation method for roughing slime through teetered bed separator (TBS) and concentrating coarse slime difficult to separate through slime dense medium cyclone |
| CN107020200A (en) * | 2017-02-15 | 2017-08-08 | 芬雷选煤工程技术(北京)有限公司 | Floatation clean coal mixing with technique in wholegrain level cleaned coal |
| CN209577010U (en) * | 2018-12-20 | 2019-11-05 | 新矿内蒙古能源有限责任公司洗煤分公司 | It is a kind of based on the tailing recycling system optimized product structure |
-
2018
- 2018-12-20 CN CN201811564787.9A patent/CN109604047A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024211A (en) * | 2007-03-26 | 2007-08-29 | 开滦(集团)有限责任公司煤业分公司 | Floating tail-coal graded recovering process |
| CN102284354A (en) * | 2011-09-13 | 2011-12-21 | 永城煤电控股集团有限公司 | Coarse slime separating process |
| CN103240168A (en) * | 2013-05-08 | 2013-08-14 | 中国矿业大学 | Classifying, separating and dewatering method for high-ash-content difficultly-separated coal slime |
| CN105080701A (en) * | 2015-09-02 | 2015-11-25 | 中国矿业大学 | Separation method for roughing slime through teetered bed separator (TBS) and concentrating coarse slime difficult to separate through slime dense medium cyclone |
| CN107020200A (en) * | 2017-02-15 | 2017-08-08 | 芬雷选煤工程技术(北京)有限公司 | Floatation clean coal mixing with technique in wholegrain level cleaned coal |
| CN209577010U (en) * | 2018-12-20 | 2019-11-05 | 新矿内蒙古能源有限责任公司洗煤分公司 | It is a kind of based on the tailing recycling system optimized product structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700169A (en) * | 2022-01-17 | 2022-07-05 | 淮北矿业股份有限公司 | Separation process suitable for treating fine-grain hard-dressing coking coal with high middling coal content |
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