CN109201334A - A kind of cleaning treatment technique raw coal early period - Google Patents
A kind of cleaning treatment technique raw coal early period Download PDFInfo
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- CN109201334A CN109201334A CN201811058429.0A CN201811058429A CN109201334A CN 109201334 A CN109201334 A CN 109201334A CN 201811058429 A CN201811058429 A CN 201811058429A CN 109201334 A CN109201334 A CN 109201334A
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- raw coal
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- partial size
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- 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
Abstract
The invention discloses a kind of cleaning treatment techniques raw coal early period, are related to raw coal manufacture field comprising the steps of: step 1, raw coal feeding；Step 2, raw coal magnetic screening；Step 3, coal classification；Step 4, roughing spoil；Step 5, raw coal second level magnetic screening；Step 6, thick oversize is broken；Step 7, raw coal mixes.It solves in the prior art, when winter raw coal is sieved, since raw coal agglomerates, it is difficult to screen, leads to the problem of spoil is difficult to select, influences the quality of raw coal in raw coal, with the sorting quality convenient for improving raw coal, and then improve the advantages of selecting precision of impurity in raw coal.
Description
Technical field
The present invention relates to raw coal manufacture field, in particular to a kind of cleaning treatment technique raw coal early period.
Background technique
Raw coal refer to that coal production comes out without washing, screening processing and the only product through artificial dirt extraction and sundries.Packet
Natural coal and colm are included, does not include low calorific value coal (such as bone coal, peat, oil shale)；Raw coal can be divided into rotten plant by its origin cause of formation
Coal, sapropelic coal and humic sapropelic coal three categories；Mud coal, lignite, bituminous coal, anthracite can be divided by its carbonizing degree.
It is existing can refer to application publication number be CN108296009A Chinese patent disclose a kind of coal deep working method
And coal processing method.The coal deep working method includes that raw coal is carried out sieve classification through sieve, obtain thick oversize and
Thick screenings；Thick oversize is divided into block through coal and the first spoil in the first cleaned coal of jigging machine sorting acquisition, first, the first cleaned coal
Cleaned coal and fine cleaned coal, block cleaned coal, fine cleaned coal, coal and the first spoil respectively enter block cleaned coal storehouse, fine cleaned coal storehouse, middle coal bunker in first
It stores in a warehouse with waste bin；Thick screenings obtains the second cleaned coal through three-product cyclone washing, coal and the second spoil in second, the
Two cleaned coal are incorporated to fine cleaned coal storehouse and store in a warehouse, and coal is incorporated to middle coal bunker and stores in a warehouse in second, and the second spoil is incorporated to waste bin progress
Storage.The kind of marketable coal is significantly increased, product stability is high, is conducive to the economic benefit for promoting enterprise.In addition, the coal
It can carry out deep processing to raw coal to charcoal processing method, to improve the kind of marketable coal.
In a kind of above-mentioned coal deep working method and coal processing method by raw coal directly after sieve sieve classification
Spoil is selected, is then stored respectively, but is had the following problems in real work situation, since raw coal is stacked in open air for a long time,
Especially wintry weather is colder, is easy to freeze inside raw coal, thus when being sieved raw coal, it is usually present raw coal agglomeration,
It is difficult to screen and is sieved the problem of inaccuracy, causes staging error, and will lead to spoil in raw coal in turn and be difficult to select, is influenced
The quality of raw coal.
Summary of the invention
The object of the present invention is to provide a kind of cleaning treatment techniques raw coal early period, its advantage is that convenient for improving the sorting of raw coal
Quality, and then improve the advantages of selecting precision of impurity in raw coal.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of cleaning treatment technique raw coal early period, which is characterized in that comprise the steps of:
Step 1, raw coal feeding: raw coal investment is broken up in heating feeder equipment, by raw coal heating, is broken up and is completed to transmit, real
Existing raw coal feeding；
Step 2, raw coal magnetic screening: the raw coal that feeding in step 1 is completed is carried out the ferrous contaminants in raw coal by iron remover
Initial gross separation；
Step 3, coal classification: the raw coal processed in step 2 is sieved, and is divided into thick oversize and thick screenings；
Step 4, roughing spoil: the thick oversize of step 3 is uniformly transmitted, and picks out more apparent spoil in thick oversize；
Step 5, raw coal second level magnetic screening: the thick oversize that selecting in step 4 is finished further will using iron remover
Ferrous contaminants in thick oversize are separated；
Step 6, thick oversize is broken: the thick oversize of process finishing in step 5 is crushed to the partial size of partial size Yu thick screenings
It is identical；
Step 7, raw coal mixes: will be crushed the thick oversize completed in step 6 and mixes with the thick screenings in step 3.
Through the above technical solutions, will freeze to thaw in integrated raw coal agglomeration by heating before raw material feeding, so
Laggard mistake break up by raw coal agglomerate separate, and further by raw coal agglomerate in moisture evaporate, be convenient for subsequent screening, then
The raw coal feeding that separation is terminated to iron remover can carry out initial gross separation to the ferrous contaminants in raw coal, improve raw coal purity,
Subsequently, raw coal is classified, by the raw coal of partial size qualification, that is, thick screenings with will be in biggish raw coal, that is, scalping of partial size
Object separation, then picks out spoil apparent in thick oversize, and further pick out ferrous contaminants, then will select completion
Thick oversize be crushed to identical as thick screenings partial size, thick oversize is mixed with thick screenings finally, ensure that original
The screening quality of coal and can in raw coal spoil and ferrous contaminants slightly chosen, be convenient for subsequent finishing.
The present invention is further arranged to: the heating feeder equipment of breaing up in the step 1 includes that cartridge heater and rotation connect
The helical feed roller being connected in cartridge heater, the cartridge heater have wrapped around heating wire, and the helical feed roller includes roll shaft
And more piece is spaced apart from each other and is surrounded on along helix the helical blade of roll shaft, one end of the roll shaft, which is additionally provided with, to be driven
The driving mechanism of roll shaft rotation.
Through the above technical solutions, raw coal is put on helical feed roller from one end of cartridge heater, heating wire is to heating
Cylinder heating, so as to heat to raw coal, at the same time, raw coal is uniformly transmitted into helical feed roller is crossed, and is led to
The both ends for crossing each helical blade are broken up, so that heating, drying thaws and removes original while realizing raw coal uniform feeding
Moisture in coal, and raw coal agglomeration is broken up, convenient for the screening of subsequent raw coal.
The present invention is further arranged to: the heating temperature in the step 1 is 40-55 DEG C.
Through the above technical solutions, the heating temperature of setting, which can reach raw coal, avoids raw coal except drying defrosting effect
Temperature it is excessively high.
The present invention is further arranged to: the Sieving and casing of the step 3 is 50mm, and the partial size of the thick oversize is greater than
The partial size of 50mm, the thick screenings are less than 50mm.
The present invention is further arranged to: the step 4 the following steps are included:
A, by thick oversize by partial size from as low as successively sieving as level-one raw coal, second level raw coal and three-level raw coal greatly；
B, by level-one raw coal, second level raw coal and three-level raw coal, uniformly conveying respectively, and spoil is selected respectively.
Through the above technical solutions, thick oversize is classified again, consequently facilitating slightly choosing for spoil, avoids partial size not
Same raw coal is stacked in transmission, influences selecting for spoil, guarantees slightly to choose quality.
The present invention is further arranged to: the step 5, using iron remover to level-one raw coal, the second level raw coal in step 4
And three-level raw coal removes ferrous contaminants respectively, and completes the difference blanking of level-one raw coal, second level raw coal and three-level raw coal.
Through the above technical solutions, being removed respectively by using iron remover to level-one raw coal, second level raw coal and three-level raw coal
Iron can further improve the separation accuracy of the ferrous contaminants of raw coal, to guarantee the clean quality of raw coal.
The present invention is further arranged to: the step 6 comprises the steps of: a, and three-level raw coal is crushed to and second level original
The partial size of coal is identical, then mixes broken three-level raw coal with second level raw coal；
B, mixed second level raw coal is crushed to identical as level-one raw coal partial size, is then mixed with level-one raw coal；
C, that mixed level-one raw coal is crushed to partial size is identical as the partial size of thick screenings.
Through the above technical solutions, broken quality can be improved by using the mode of graded crushing, can be avoided mixed
When closing broken, the advantages of being crushed unevenly, generate a large amount of cinder.
The present invention is further arranged to: the step 4, and the partial size of level-one raw coal is 50-80mm, the partial size of second level raw coal
Partial size for 80-110mm, three-level raw coal is greater than 110mm.
In conclusion the invention has the following advantages:
1, it will freeze to thaw in the raw coal agglomeration of one by heating before raw material feeding, and then be broken up into mistake and raw coal agglomerates
Separation, and further by raw coal agglomerate in moisture evaporate, be convenient for subsequent screening, then will separation terminate raw coal feeding
Initial gross separation can be carried out to the ferrous contaminants in raw coal to iron remover, improve raw coal purity and subsequently raw coal is divided
Grade, the raw coal of partial size qualification, that is, thick screenings is separated with by the biggish raw coal of partial size, that is, thick oversize, then will be in scalping
Apparent spoil is picked out in object, and further picks out ferrous contaminants, then by the thick oversize for selecting completion be crushed to
Thick screenings partial size is identical, finally mixes thick oversize with thick screenings, ensure that the screening quality of raw coal and can
To in raw coal spoil and ferrous contaminants slightly chosen, be convenient for subsequent finishing；
2, raw coal is put on helical feed roller from one end of cartridge heater, heating wire heats cartridge heater, so as to original
Coal is heated, and at the same time, raw coal is uniformly transmitted into helical feed roller is crossed, and by the both ends of each helical blade into
Row is broken up, so that heating, drying thaws and removes the moisture in raw coal, and breaks up raw coal while realizing raw coal uniform feeding
Agglomeration, convenient for the screening of subsequent raw coal.
3, thick oversize is classified again, consequently facilitating spoil is slightly chosen, the raw coal for avoiding partial size different is being transmitted
When be stacked with, influence selecting for spoil, guarantee slightly to choose quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that heating feeder equipment is broken up in embodiment.
In figure, 1, cartridge heater；11, feed hopper；12, discharge port；13, muff；14, heater strip；2, helical feed roller；
21, roll shaft；22, helical blade；23, driving mechanism.
Specific embodiment
Embodiment: a kind of cleaning treatment technique raw coal early period, as shown in Figure 1 comprising the steps of:
Step 1, raw coal feeding: raw coal investment is broken up in heating feeder equipment, by raw coal heating, is broken up and is completed to transmit, real
Existing raw coal feeding, heating temperature are 40-55 DEG C；
Step 2, raw coal magnetic screening: the raw coal that feeding in step 1 is completed is carried out the ferrous contaminants in raw coal by iron remover
Initial gross separation；
Step 3, coal classification: the raw coal processed in step 2 is sieved by the sieve that aperture is 50mm, thus by former
Screen is divided into thick oversize of the partial size greater than 50mm to be less than the thick screenings of 50mm for partial size；
Step 4, roughing spoil: the following steps are included:
A sieves the thick oversize in step 3 by sieve again, and being divided into partial size is 50-80mm level-one raw coal, grain
The three-level raw coal that the second level raw coal and partial size that diameter is 80-110mm are 110mm or more；
Level-one raw coal, second level raw coal and three-level raw coal are thrown on different conveyer belts respectively and are paved uniform and slow by b
Then transmission carries out the spoil in level-one raw coal, second level raw coal and three-level raw coal by construction personnel tentatively selecting separation；
Step 5, raw coal second level magnetic screening: selecting in step 4 is finished into level-one raw coal, second level raw coal and three-level raw coal and is distinguished
Using iron remover further by by level-one raw coal, second level raw coal and three-level raw coal ferrous contaminants separate, then will point
Blanking is distinguished from level-one raw coal, second level raw coal and three-level raw coal is completed；
Step 6, thick oversize is broken: comprising the steps of:
A, the three-level raw coal of blanking in step 5 is crushed to identical as the partial size of second level raw coal using crusher, then will be crushed
Three-level raw coal afterwards is mixed with second level raw coal；
B, mixed second level raw coal is crushed to using crusher it is identical as level-one raw coal partial size, it is then mixed with level-one raw coal
It closes；
C, by mixed level-one raw coal, using crusher, to be crushed to partial size identical as the partial size of thick screenings；
Step 7, raw coal mixes: it will be crushed the level-one raw coal completed in step 6 and mixed with the thick screenings in step 3, it is complete
At blanking.
Heating feeder equipment, including cartridge heater 1 are broken up in step 1, one end of cartridge heater 1 is fixedly connected with feed hopper
11, and its other end offers discharge port 12.Be rotatably connected to helical feed roller 2 in cartridge heater 1, helical feed roller 2 include with
The roll shaft 21 and more piece of cartridge heater coaxial line are spaced apart from each other and are surrounded on the helical blade 22 of roll shaft 21, helical-blade along helix
The outside of piece 22 is connected to the inner sidewall of cartridge heater 11, and one end of roll shaft 21 extends in feed hopper 11 and is fed through feed hopper
11 sides far from cartridge heater 1, one end that roll shaft 21 extends feed hopper 11 are additionally provided with the drive for capableing of the rotation of drive roller shaft 21
Motivation structure 23, the driving mechanism 23 used in the present embodiment is driving motor.
The outer sheath of cartridge heater 1 is equipped with muff 13, is provided between muff 13 and cartridge heater 1 and is sheathed on cartridge heater 1
The heater strip 14 in outside, one end of heater strip 14 extend one end of muff 13 and cartridge heater 1 and are fixedly connected with conducting wire, lead
The other end of line is fixedly connected with power supply.When work, raw coal is put into lower hopper 11, then, driving mechanism 23 drives roller
Axis 21 rotates, to drive helical feed roller 2 to rotate, so as to add the raw coal edge in lower hopper 11 by helical blade 22
It is uniformly transmitted in hot cylinder 1, in transmit process, heating wire 14 heats cartridge heater 1, so as to heat to raw coal, with this
Meanwhile raw coal agglomeration is broken up with rotation in the both ends of each helical blade 22, thus while realizing raw coal uniform feeding,
Heating, drying thaws and removes the moisture in raw coal, and breaks up raw coal agglomeration, convenient for the screening of subsequent raw coal.
The advantages of this technique, is: will freeze to thaw in integrated raw coal agglomeration by heating before raw material feeding, then
Into cross break up by raw coal agglomerate separate, and further by raw coal agglomerate in moisture evaporate, be convenient for subsequent screening, then will
Raw coal feeding to the iron remover that separating terminates can carry out initial gross separation to the ferrous contaminants in raw coal, improve raw coal purity, then
Then, raw coal is classified, by the raw coal of partial size qualification, that is, thick screenings with by the biggish raw coal of partial size, that is, thick oversize
Thick oversize, is then classified by separation again, consequently facilitating spoil is slightly chosen, the raw coal for avoiding partial size different is in transmission
It is stacked with, influences selecting for spoil, guarantee slightly to choose quality.Again using iron remover to level-one raw coal, second level raw coal and three-level
Raw coal removes the separation accuracy that iron can further improve the ferrous contaminants of raw coal respectively, to guarantee the clean quality of raw coal.
Finally by broken quality by the way of graded crushing, can be improved, can be avoided mixing it is broken when, be crushed it is uneven,
The advantages of generating a large amount of cinder.Thick oversize is mixed with thick screenings finally, ensure that the screening quality of raw coal simultaneously
Can in raw coal spoil and ferrous contaminants slightly chosen, be convenient for subsequent finishing.
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 (8)
1. a kind of cleaning treatment technique raw coal early period, which is characterized in that comprise the steps of:
Step 1, raw coal feeding: raw coal investment is broken up in heating feeder equipment, by raw coal heating, is broken up and is completed to transmit, real
Existing raw coal feeding；
Step 2, raw coal magnetic screening: the raw coal that feeding in step 1 is completed is carried out the ferrous contaminants in raw coal by iron remover
Initial gross separation；
Step 3, coal classification: the raw coal processed in step 2 is sieved, and is divided into thick oversize and thick screenings；
Step 4, roughing spoil: the thick oversize of step 3 is uniformly transmitted, and picks out more apparent spoil in thick oversize；
Step 5, raw coal second level magnetic screening: the thick oversize that selecting in step 4 is finished further will using iron remover
Ferrous contaminants in thick oversize are separated；
Step 6, thick oversize is broken: the thick oversize of process finishing in step 5 is crushed to the partial size of partial size Yu thick screenings
It is identical；
Step 7, raw coal mixes: will be crushed the thick oversize completed in step 6 and mixes with the thick screenings in step 3.
2. a kind of cleaning treatment technique raw coal early period according to claim 1, it is characterized in that: breaing up in the step 1
Heating feeder equipment includes cartridge heater 1 and the helical feed roller 2 being rotationally connected in cartridge heater 1, the outside of the cartridge heater 1
It is surrounded with heating wire 14, the helical feed roller 2 includes that roll shaft 21 and more piece are spaced apart from each other and are surrounded on roll shaft along helix
Helical blade 22, one end of the roll shaft 21 be additionally provided be capable of drive roller shaft 21 rotate driving mechanism 23.
3. a kind of cleaning treatment technique raw coal early period according to claim 2, it is characterized in that: adding in the step 1
Hot temperature is 40-55 DEG C.
4. a kind of cleaning treatment technique raw coal early period according to claim 3, it is characterized in that: the screening of the step 3
Partial size is 50mm, and the partial size of the thick oversize is greater than 50mm, and the partial size of the thick screenings is less than 50mm.
5. a kind of cleaning treatment technique raw coal early period according to claim 4, it is characterized in that: the step 4 include with
Lower step:
A, by thick oversize by partial size from as low as successively sieving as level-one raw coal, second level raw coal and three-level raw coal greatly；
B, by level-one raw coal, second level raw coal and three-level raw coal, uniformly conveying respectively, and spoil is selected respectively.
6. a kind of cleaning treatment technique raw coal early period according to claim 5, it is characterized in that: the step 5, using removing
Ironware removes ferrous contaminants to level-one raw coal, second level raw coal and the three-level raw coal in step 4 respectively, and complete level-one raw coal,
The difference blanking of second level raw coal and three-level raw coal.
7. a kind of cleaning treatment technique raw coal early period according to claim 6, it is characterized in that: the step 6 include with
Lower step:
A, three-level raw coal is crushed to identical as the partial size of second level raw coal, then mixes broken three-level raw coal with second level raw coal
It closes；
B, mixed second level raw coal is crushed to identical as level-one raw coal partial size, is then mixed with level-one raw coal；
C, that mixed level-one raw coal is crushed to partial size is identical as the partial size of thick screenings.
8. a kind of cleaning treatment technique raw coal early period according to claim 7, it is characterized in that: the step 4, level-one is former
The partial size of coal is 50-80mm, and the partial size of second level raw coal is 80-110mm, and the partial size of three-level raw coal is greater than 110mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811058429.0A CN109201334B (en) | 2018-09-11 | 2018-09-11 | Clean treatment process for raw coal at earlier stage |
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|---|---|---|---|
| CN201811058429.0A CN109201334B (en) | 2018-09-11 | 2018-09-11 | Clean treatment process for raw coal at earlier stage |
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| CN109201334A true CN109201334A (en) | 2019-01-15 |
| CN109201334B CN109201334B (en) | 2020-09-08 |
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| RU2429347C1 (en) * | 2010-01-29 | 2011-09-20 | Учреждение Российской академии наук Институт угля и углехимии Сибирского отделения РАН (ИУУ СО РАН) | Method of selective extraction of coal bed |
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| CN204881029U (en) * | 2015-06-23 | 2015-12-16 | 袁鲁芳 | Efficient coal slime drying -machine |
| CN204944089U (en) * | 2015-09-25 | 2016-01-06 | 大田威斯特环保科技有限公司 | A kind of dryer for the treatment of house refuse |
| CN205747857U (en) * | 2016-07-05 | 2016-11-30 | 吴泗铭 | A kind of coal slime drying unit |
| CN106196953A (en) * | 2016-08-25 | 2016-12-07 | 安徽纽亚达科技有限责任公司 | Mineral dehydrator |
| CN207325018U (en) * | 2017-08-01 | 2018-05-08 | 淮南矿业(集团)有限责任公司 | Group coal dividing load and carry system |
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2018
- 2018-09-11 CN CN201811058429.0A patent/CN109201334B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2429347C1 (en) * | 2010-01-29 | 2011-09-20 | Учреждение Российской академии наук Институт угля и углехимии Сибирского отделения РАН (ИУУ СО РАН) | Method of selective extraction of coal bed |
| CN102319619A (en) * | 2011-09-13 | 2012-01-18 | 山东新矿赵官能源有限责任公司 | Graded washing process for raw coal |
| CN102492518A (en) * | 2011-11-30 | 2012-06-13 | 中国五环工程有限公司 | Quality-improving process and apparatus for high-ash low rank coal |
| CN204881029U (en) * | 2015-06-23 | 2015-12-16 | 袁鲁芳 | Efficient coal slime drying -machine |
| CN204944089U (en) * | 2015-09-25 | 2016-01-06 | 大田威斯特环保科技有限公司 | A kind of dryer for the treatment of house refuse |
| CN205747857U (en) * | 2016-07-05 | 2016-11-30 | 吴泗铭 | A kind of coal slime drying unit |
| CN106196953A (en) * | 2016-08-25 | 2016-12-07 | 安徽纽亚达科技有限责任公司 | Mineral dehydrator |
| CN207325018U (en) * | 2017-08-01 | 2018-05-08 | 淮南矿业(集团)有限责任公司 | Group coal dividing load and carry system |
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| CN109201334B (en) | 2020-09-08 |
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Effective date of registration: 20200828 Address after: 015300 Jinquan Industrial Park, Wulatezhong banner, Bayannur City, Inner Mongolia Autonomous Region Patentee after: Wulat Zhongqi Haotong clean energy Co.,Ltd. Address before: 015300 Jinquan Industrial Park, Deling Mountain Town, Wuzhen Village, Urat Central Banner, Bayannaoer City, Inner Mongolia Autonomous Region Patentee before: URAD MIDDLE BANNER YITENG MINING Co.,Ltd. |
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