CN109201316A - A kind of raw coal clean utilization production technology and raw coal clean utilization production equipment - Google Patents
A kind of raw coal clean utilization production technology and raw coal clean utilization production equipment Download PDFInfo
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- CN109201316A CN109201316A CN201811059232.9A CN201811059232A CN109201316A CN 109201316 A CN109201316 A CN 109201316A CN 201811059232 A CN201811059232 A CN 201811059232A CN 109201316 A CN109201316 A CN 109201316A
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- 239000003245 coal Substances 0.000 title claims abstract description 212
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 238000012216 screening Methods 0.000 claims abstract description 37
- 239000000725 suspension Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000007885 magnetic separation Methods 0.000 claims abstract description 13
- 238000005188 flotation Methods 0.000 claims description 14
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000006148 magnetic separator Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000001404 mediated effect Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 244000240602 cacao Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009736 wetting Methods 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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- 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
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a kind of raw coal clean utilization production technology and raw coal clean utilization production equipments, it is related to raw coal production technology, its drip irrigation device includes by carrying out second-time breakage to raw coal, it can be improved the service efficiency of suspension, and keep the screening of cyclone more accurate, to improve screening efficiency；By carrying out spraying-rinsing to raw coal, the fugitive dust generated in screening process can be reduced；By the way that multi-stage magnetic separation process is arranged, it can be reduced the magnetisable material in raw coal, improve raw coal screening quality.
Description
Technical field
The present invention relates to raw coal production technologies, more specifically, it relates to a kind of raw coal clean utilization production technology and original
Coal clean utilization production equipment.
Background technique
Coal washing is an indispensable process of coal deep processing, and directly mined coal is original from mine
Coal, raw coal has been mixed into many impurity in recovery process, and the quality of coal is also different, and fixed ash is small and fixed ash is big
Coal it is mixed in together.Coal washing is exactly to reject the impurity in raw coal, or fat coal and low-grade coal are carried out disaggregatedly
A kind of industrial technology.The hair that existing coal cleaning process cocoa application reference number is 201310583692.2 or 201310583796.3
Cleaned coal, middle coal and spoil are mainly separated by three-product HM cyclone, are dehydrated later, de-mediated by bright patent
Form product.
Dual medium cyclone dressing is completed using Archimedes principle in centrifugal force field, after material enters cyclone,
Under centrifugal force effect, the particle of different densities radially scatter, and weight particle is moved respectively to the density of oneself similar density
Entering upper up-flow on face, perhaps sinking is discharged from underflow opening or overflow port.70%- can be sub-elected by dense medium cyclone
80% cleaned coal, the substantially biggish block cleaned coal of granularity isolated, but some granularity is smaller, as granularity is less than or equal to
The cleaned coal of 0.4mm is then carried out using floatation selected.
Existing dense medium cyclone in coal separation, raw coal by dense medium suspension liquid wetting mixing after enter dense medium cyclone into
Row sorting；When raw coal particle is larger, into after cyclone, need that more time and suspension is spent to sieve raw coal
Choosing, wastes time and efforts.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of raw coal clean utilization production technology and
Raw coal clean utilization production equipment can first carry out break process before raw coal enters cyclone, reduce the screening of cyclone
Time improves the screening efficiency of cyclone.
To achieve the above object, the present invention provides the following technical scheme that
Step 1: raw coal being sent into the first screening washer and is screened, the first screening washer has setting value to granule size, and granularity is greater than
The raw coal of setting value enters crusher and is crushed.
Step 2: being leaked jointly through pan feeding by the raw coal that the broken raw coal of crusher in step 1 is less than setting value with granularity
Bucket is fed through feeding pipe；Working chamber in feeding pipe carries out second-time breakage processing to raw coal；
Step 3: the raw coal after step 2 break process is set the sparge pipe in feeding pipe and is cleaned, after cleaning
Raw coal enter three products without pressure cyclone in；
Step 4: when the raw coal in step 3 enters one section cyclone of three products without pressure cyclone, along the tangent line of one section of cyclone
Suspension is added in direction, to form strong bumpy flow；Under the action of eddy-currents, the cleaned coal of suspension is mixed with from one section
The outflow of cyclone bottom end, the middle coal for being mixed with suspension enter two sections of cyclones with the spoil for being mixed with suspension, and in two sections of eddy flows
It is separated in device, is mixed with the spoil of suspension and is flowed out from the bottom of two sections of cyclones, be mixed with the middle coal of suspension from two sections of cyclones
Top outflow.
Step 5: the spoil difference for being mixed with the cleaned coal of suspension in step 4, being mixed with the middle coal of suspension and being mixed with suspension
Into carrying out de-mediated in sculping screen, the aqueous cleaned coal, aqueous middle coal and aqueous spoil after obtaining de-mediated.
Step 6: aqueous cleaned coal, aqueous middle coal and aqueous spoil in step 5 respectively enter and carry out magnetic separation in magnetic separator；
Aqueous cleaned coal, which rinses to enter by the magnetic material that magnetic separator sub-elects, closes Jie's cylinder, and the aqueous cleaned coal of nonmagnetic object enters essence
Magnetic tail cylinder；
Aqueous middle coal and aqueous spoil enter by the magnetic material that magnetic separator sub-elects closes Jie's cylinder, and the aqueous middle coal of nonmagnetic object
Middle cash magnetic tail cylinder is respectively enterd with aqueous spoil；
Step 7: aqueous cleaned coal, aqueous middle coal and aqueous spoil in step 6 respectively enter floatation equipment and carry out flotation, and respectively
Floatingly select cleaned coal and tailing.
By using above-mentioned technical proposal, raw coal realizes second-time breakage using feeding pipe after broken crusher machine, thus
Raw coal is made into further refinement；Broken raw coal is once purged to enter back into cyclone, thus generated during reducing coal separation
Dust；Raw coal after cleaning is screened after entering three-product HM cyclone, and then the product after screening enters after de-mediated
Magnetic separator carries out magnetic separation；Product carries out flotation through floatation equipment again after magnetic separation, screens the lesser raw coal of particle also；
Raw coal first carries out magnetic separation and second-time breakage before entering cyclone, can be improved the service efficiency of suspension, and make eddy flow
The screening of device is more accurate, to improve screening efficiency.
Preferably, the working chamber includes broken coal chamber and the filter coal chamber that broken coal chamber side is arranged in；When executing step 2, when
When needing to be crushed raw coal, broken coal chamber is made to align with feed hopper；When without will filter coal chamber and enter when being crushed to raw coal
Funnel aligns.
By using above-mentioned technical proposal, working chamber can be made to adapt to different working conditions, be convenient to use.
Preferably, the raw coal after cleaning carries out magnetic screening using magnet when executing step 3.
By using above-mentioned technical proposal, raw coal is further screened, subsequent screening efficiency is improved.
Preferably, being additionally provided with cam above the broken coal chamber.
It is convenient that the biggish raw coal of particle is crushed by using above-mentioned technical proposal, improve subsequent screening efficiency.
Preferably, the floatation equipment includes floatation feed bucket and flotation device, the essence in smart magnetic tail cylinder and middle cash magnetic tail cylinder
Coal and bastard coal mixture are introduced into floatation feed bucket respectively, and foaming agent is added in floatation feed bucket and collecting agent stirs evenly,
The liquid in floatation feed cylinder enters flotation device progress flotation later.
By using above-mentioned technical proposal, the lesser particle of granularity can further be screened, reduce waste, mention
The high utilization rate of raw coal.
In conclusion the invention has the following advantages:
1, by carrying out second-time breakage to raw coal, it can be improved the service efficiency of suspension, and make the screening of cyclone more
Accurately, to improve screening efficiency；
2, by carrying out spraying-rinsing to raw coal, the fugitive dust generated in screening process can be reduced；
3, it by setting multi-stage magnetic separation process, can be reduced the magnetisable material in raw coal, improve raw coal screening quality.
Detailed description of the invention
The step of Fig. 1 is a kind of raw coal clean utilization production technology and raw coal clean utilization production equipment is schemed；
Fig. 2 is a kind of structural schematic diagram of raw coal clean utilization production equipment；
Fig. 3 is a kind of structure sectional view of raw coal clean utilization production equipment；
Fig. 4 is schematic enlarged-scale view at the A of Fig. 3；
Fig. 5 is working chamber structural schematic diagram；
Fig. 6 is sparge pipe structural schematic diagram.
Appended drawing reference: 1, one end cyclone；11, feed hopper；12, feeding pipe；121, working chamber；1211, broken coal chamber；
1212, coal chamber is filtered；13, cam；14, sparge pipe；141, the thin mouth of water spray；142, water inlet；143, water supplying pipe；15, broken coal roller；
16, coal plate is filtered；161, coal hole is filtered；2, two sections of cyclones.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail, wherein the identical appended drawing reference of identical components
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down", " bottom surface " and
" top surface " refers to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from geometric center of specific component
Direction.
A kind of raw coal clean utilization production equipment, it is as shown in Figures 2 and 3, including without pressure three-product HM cyclone, described
It include isometric concatenated one section of cyclone and two sections of cyclones, one section of cyclone feeding inlet without pressure three-product HM cyclone
Place is equipped with one section of feeding pipe 12 tilted upward, and the feeding pipe 12 is equipped with feed hopper 11 away from one end of one section of cyclone.
Raw coal successively proceeds to feeding pipe 12 from feed hopper 11, and eventually enters into one section of cyclone, passes through the separation of one section of cyclone, essence
Coal is leaked out from the bottom of one section of cyclone, sweeps along the rough coal of middle coal and spoil to enter two sections of cyclones, and pass through two sections of eddy flows
Device separates middle coal and spoil, to complete to former coal screening.
A kind of raw coal clean utilization production technology, as shown in Figure 1, comprising:
Step 1: raw coal being sent into the first screening washer and is screened, the first screening washer has setting value to granule size, and granularity is greater than
The raw coal of setting value enters crusher and is crushed.
Step 2: being leaked jointly through pan feeding by the raw coal that the broken raw coal of crusher in step 1 is less than setting value with granularity
Bucket 11 is fed through feeding pipe 12；Working chamber 121 in feeding pipe 12 carries out second-time breakage processing to raw coal；
Step 3: the raw coal after step 2 break process is set the sparge pipe 14 in feeding pipe 12 and is cleaned, and has cleaned
Raw coal after finishing enters three products without in pressure cyclone；
Step 4: when the raw coal in step 3 enters one section cyclone of three products without pressure cyclone, along the tangent line of one section of cyclone
Suspension is added in direction, to form strong bumpy flow；Under the action of eddy-currents, the cleaned coal of suspension is mixed with from one section
The outflow of cyclone bottom end, the middle coal for being mixed with suspension enter two sections of cyclones with the spoil for being mixed with suspension, and in two sections of eddy flows
It is separated in device, is mixed with the spoil of suspension and is flowed out from the bottom of two sections of cyclones, be mixed with the middle coal of suspension from two sections of cyclones
Top outflow.
Step 5: the spoil difference for being mixed with the cleaned coal of suspension in step 4, being mixed with the middle coal of suspension and being mixed with suspension
Into carrying out de-mediated in sculping screen, the aqueous cleaned coal, aqueous middle coal and aqueous spoil after obtaining de-mediated.
Step 6: aqueous cleaned coal, aqueous middle coal and aqueous spoil in step 5 respectively enter and carry out magnetic separation in magnetic separator；
Aqueous cleaned coal, which rinses to enter by the magnetic material that magnetic separator sub-elects, closes Jie's cylinder, and the aqueous cleaned coal of nonmagnetic object enters essence
Magnetic tail cylinder；
Aqueous middle coal and aqueous spoil enter by the magnetic material that magnetic separator sub-elects closes Jie's cylinder, and the aqueous middle coal of nonmagnetic object
Middle cash magnetic tail cylinder is respectively enterd with aqueous spoil；
Step 7: aqueous cleaned coal, aqueous middle coal and aqueous spoil in step 6 respectively enter floatation equipment and carry out flotation, and respectively
Floatingly select cleaned coal and tailing.
Raw coal realizes second-time breakage using feeding pipe 12 after broken crusher machine, so that raw coal is made further refinement；
Broken raw coal is once purged to enter back into cyclone, thus the dust generated during reducing coal separation；Raw coal after cleaning into
It is screened after entering three-product HM cyclone, then the product after screening enters magnetic separator progress magnetic separation after de-mediated；Magnetic separation
Product carries out flotation through floatation equipment again afterwards, screens the lesser raw coal of particle also；Raw coal enter cyclone it
It is preceding first to carry out magnetic separation and second-time breakage, it can be improved the service efficiency of suspension, and keep the screening of cyclone more accurate, from
And improve screening efficiency；Wherein, when executing step 1, raw coal uses magnet first to carry out magnetic screening before entering the first screening washer,
When executing step 3, the raw coal after cleaning carries out magnetic screening using magnet；By the way that multi-stage magnetic separation process is arranged, can be reduced in raw coal
Magnetisable material, improve raw coal screening quality.
In the present embodiment, it is cleaned to realize to broken, referring to Fig. 4 and Fig. 6 in feeding pipe 12 close to one section
One end of cyclone is provided with sparge pipe 14, and sparge pipe 14 is equipped with several thin mouths 141 of water spray；Feeding pipe 12 deviates from feed hopper
11 one end offers water inlet 142, and water supplying pipe 143 is connected in water inlet 142, to enable sparge pipe 14 to after broken
Raw coal cleaned.
In order to make working chamber 121 can adapt to different working conditions, in the present embodiment, referring to Fig. 3 and Fig. 5, work
Chamber 121 includes broken coal chamber 1211 and the filter coal chamber 1212 that 1211 side of broken coal chamber is arranged in, and is lain across in broken coal chamber 1211 in pan feeding
Pipe 12 is equipped with several broken coal rollers 15 parallel to each other, and the top of broken coal chamber 1211 is equipped with cam 13, and broken coal roller 15 is equipped with several
Broken coal tooth, one end of broken coal roller 15 are respectively connected with driving motor (not marking in figure)；Filter coal plate 16 is connected in filter coal chamber 1212,
Several filter coal holes 161 are offered on the filter coal plate 16；When executing step 2, when needing to be crushed raw coal, make broken coal chamber
1211 align with feed hopper 11, when it is not necessary that when being crushed to raw coal, filter coal chamber 1212 is aligned with feed hopper 11；Work as original
When coal particle is larger, then raw coal is crushed using cam 13, improves subsequent screening efficiency.
In the present embodiment, in order to further be screened to the lesser particle of granularity, waste is reduced, is improved
The utilization rate of raw coal, floatation equipment include floatation feed bucket and flotation device, the tailing difference in smart magnetic tail cylinder and middle cash magnetic tail cylinder
It is introduced into floatation feed bucket, foaming agent is added in floatation feed bucket and collecting agent stirs evenly, later in floatation feed cylinder
Liquid enters flotation device and carries out flotation.
The present invention can be improved the service efficiency of suspension, and make cyclone by carrying out second-time breakage to raw coal
Screen it is more accurate, to improve screening efficiency；By carrying out spraying-rinsing to raw coal, it can reduce in screening process and generate
Fugitive dust；By the way that multi-stage magnetic separation process is arranged, it can be reduced the magnetisable material in raw coal, improve raw coal screening quality.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (9)
1. a kind of raw coal clean utilization production technology, it is characterised in that:
Step 1: raw coal being sent into the first screening washer and is screened, the first screening washer has setting value to granule size, and granularity is greater than
The raw coal of setting value enters crusher and is crushed；
Step 2: being less than the raw coal of setting value jointly through feed hopper by the broken raw coal of crusher in step 1 and granularity
(11) feeding pipe (12) are fed through；Working chamber (121) in feeding pipe (12) carries out break process to raw coal；
Step 3: the raw coal after step 2 break process is set the sparge pipe (14) in feeding pipe (12) and is cleaned, clearly
Raw coal after washing enters three products without in pressure cyclone；
Step 4: when the raw coal in step 3 enters one section cyclone of three products without pressure cyclone, along the tangent line of one section of cyclone
Suspension is added in direction, to form strong bumpy flow；Under the action of eddy-currents, the cleaned coal of suspension is mixed with from one section
The outflow of cyclone bottom end, the middle coal for being mixed with suspension enter two sections of cyclones with the spoil for being mixed with suspension, and in two sections of eddy flows
It is separated in device, is mixed with the spoil of suspension and is flowed out from the bottom of two sections of cyclones, be mixed with the middle coal of suspension from two sections of cyclones
Top outflow；
Step 5: the cleaned coal of suspension is mixed in step 4, the spoil that is mixed with the middle coal of suspension and is mixed with suspension respectively enters
De-mediated is carried out in sculping screen, aqueous cleaned coal, aqueous middle coal and aqueous spoil after obtaining de-mediated；
Step 6: aqueous cleaned coal, aqueous middle coal and aqueous spoil in step 5 respectively enter and carry out magnetic separation in magnetic separator；
Aqueous cleaned coal, which rinses to enter by the magnetic material that magnetic separator sub-elects, closes Jie's cylinder, and the aqueous cleaned coal of nonmagnetic object enters essence
Magnetic tail cylinder；
Aqueous middle coal and aqueous spoil enter by the magnetic material that magnetic separator sub-elects closes Jie's cylinder, and the aqueous middle coal of nonmagnetic object
Middle cash magnetic tail cylinder is respectively enterd with aqueous spoil；
Step 7: aqueous cleaned coal, aqueous middle coal and aqueous spoil in step 6 respectively enter floatation equipment and carry out flotation, and respectively
Floatingly select cleaned coal and tailing.
2. a kind of raw coal clean utilization production technology according to claim 1, it is characterized in that: when executing step 1, raw coal into
Magnet is used first to carry out magnetic screening before entering the first screening washer.
3. a kind of raw coal clean utilization production technology according to claim 1, it is characterized in that: the working chamber (121) wraps
Broken coal chamber (1211) and setting are included in the filter coal chamber (1212) of broken coal chamber (1211) side；When executing step 2, when needing to raw coal
When being crushed, broken coal chamber (1211) is made to align with feed hopper (11)；When it is not necessary that coal chamber will be filtered when being crushed to raw coal
(1212) it aligns with feed hopper (11).
4. a kind of raw coal clean utilization production technology according to claim 1, it is characterized in that: when executing step 3, after cleaning
Raw coal using magnet carry out magnetic screening.
5. a kind of raw coal clean utilization production technology according to claim 3, it is characterized in that: the broken coal chamber (1211)
Top is additionally provided with cam (13).
6. a kind of raw coal clean utilization production technology according to claim 1, it is characterized in that: the floatation equipment includes floating
It is selected into charging basket and flotation device, the tailing in smart magnetic tail cylinder and middle cash magnetic tail cylinder is introduced into floatation feed bucket respectively, in floatation feed
Foaming agent is added in bucket and collecting agent stirs evenly, the liquid in floatation feed cylinder enters flotation device progress flotation later.
7. a kind of raw coal clean utilization production technology according to claim 1, it is characterized in that: being leaned in the feeding pipe (12)
Sparge pipe (14) are arranged in one end of nearly one section of cyclone, and sparge pipe (14) is equipped with several thin mouths (141) of water spray；Feeding pipe (12)
It is offered water inlet (142) away from one end of feed hopper (11), is connected with water supplying pipe (143) in water inlet (142).
8. a kind of raw coal clean utilization production technology according to claim 1, it is characterized in that: in the broken coal chamber (1211)
It lies across and is equipped with a pair of broken coal roller (15) parallel to each other in feeding pipe (12), broken coal roller (15) is equipped with several broken coal teeth, described
One end of broken coal roller (15) is respectively connected with driving motor.
9. a kind of raw coal clean utilization production equipment, it is characterized in that: include without pressure three-product HM cyclone, it is described without pressure tertiary industry
Product dense medium cyclone includes isometric concatenated one section of cyclone and two sections of cyclones, is equipped with one at one section of cyclone feeding inlet
The feeding pipe (12) that section tilts upward, the feeding pipe (12) are equipped with feed hopper (11) away from one end of one section of cyclone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059232.9A CN109201316B (en) | 2018-09-12 | 2018-09-12 | Clean utilization production process for raw coal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059232.9A CN109201316B (en) | 2018-09-12 | 2018-09-12 | Clean utilization production process for raw coal |
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| CN109201316A true CN109201316A (en) | 2019-01-15 |
| CN109201316B CN109201316B (en) | 2020-11-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110694791A (en) * | 2019-08-27 | 2020-01-17 | 西安中原机械有限公司 | Process for extracting clean coal from middlings |
| CN112221698A (en) * | 2020-09-27 | 2021-01-15 | 神华神东煤炭集团有限责任公司 | Combined method for removing gangue from flotation tailing and recovering combustible body through carrier flotation |
| CN114042528A (en) * | 2021-11-17 | 2022-02-15 | 六盘水师范学院 | Coal mine washing and selecting treatment system |
| CN114849892A (en) * | 2022-05-07 | 2022-08-05 | 金易通（天津）智能装备有限公司 | Dry dust-free lump material dry separation method and system |
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| CN110694791A (en) * | 2019-08-27 | 2020-01-17 | 西安中原机械有限公司 | Process for extracting clean coal from middlings |
| CN112221698A (en) * | 2020-09-27 | 2021-01-15 | 神华神东煤炭集团有限责任公司 | Combined method for removing gangue from flotation tailing and recovering combustible body through carrier flotation |
| CN114042528A (en) * | 2021-11-17 | 2022-02-15 | 六盘水师范学院 | Coal mine washing and selecting treatment system |
| CN114849892A (en) * | 2022-05-07 | 2022-08-05 | 金易通（天津）智能装备有限公司 | Dry dust-free lump material dry separation method and system |
| CN115888946A (en) * | 2022-11-15 | 2023-04-04 | 中国平煤神马控股集团有限公司 | Medium coal ultrafine grinding and washing process and washing device thereof |
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