CN110170276A - A kind of method of the modified low asphalitine dregs of fat mixed coal powder of semicoke - Google Patents
A kind of method of the modified low asphalitine dregs of fat mixed coal powder of semicoke Download PDFInfo
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- CN110170276A CN110170276A CN201910481205.9A CN201910481205A CN110170276A CN 110170276 A CN110170276 A CN 110170276A CN 201910481205 A CN201910481205 A CN 201910481205A CN 110170276 A CN110170276 A CN 110170276A
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- 239000000843 powder Substances 0.000 title claims abstract description 75
- 239000003245 coal Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000002156 mixing Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000002817 coal dust Substances 0.000 claims abstract description 9
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims abstract description 5
- 238000010298 pulverizing process Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 11
- 239000003607 modifier Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000002309 gasification Methods 0.000 claims description 5
- 206010001497 Agitation Diseases 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000002893 slag Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 abstract description 4
- 239000003463 adsorbent Substances 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 238000000197 pyrolysis Methods 0.000 description 4
- 238000003889 chemical engineering Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002010 green coke Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/805—Mixing plants; Combinations of mixers for granular material
- B01F33/8052—Mixing plants; Combinations of mixers for granular material involving other than mixing operations, e.g. milling, sieving or drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/834—Mixing in several steps, e.g. successive steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83613—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
- B01F35/188—Preventing generation of dust or dirt; Sieves; Filters using sieves in mixers for purposes other than mixing, e.g. eliminating dust during venting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/25—Mixing waste with other ingredients
Abstract
The invention discloses a kind of methods of the modified low asphalitine dregs of fat mixed coal powder of semicoke, semicoke is mixed with the dregs of fat, make the residual low-boiling point material in the semicoke absorption dregs of fat, asphalitine in the dregs of fat makes semicoke and the dregs of fat be bonded into loose inviscid granular media, the granular media is mixed with the coal that drying has been crushed, dry method powder is carried out in powder manufacturing apparatus, and the coal dust for being mixed with granular media is made.The present invention provides a kind of method of modified low asphalitine dregs of fat mixed coal powder of semicoke, this method is using the micron order semi-coke powder of wider size distribution particle as packing material and adsorbent material, by the semi-coke powder of the dregs of fat amount 20-80% at a temperature of 40-70 DEG C, it carries out being sufficiently mixed dispersion in mixing apparatus, semicoke is allowed sufficiently to adsorb the low-boiling point material in the dregs of fat, and the dregs of fat/semicoke mixture is made to become granular media, the coal dust that granular media and drying have been crushed is mixed into fuel pulverizing plant powder.
Description
Technical field
The invention belongs to field of solid waste treating technology, in particular to a kind of modified low asphalitine dregs of fat mixed coal of semicoke
The method of powder processed.
Background technique
Coal gasification-pyrolysis combine prepare coal tar, synthesis gas technology can all generate the dregs of fat, most of dregs of fat contain more low
Boilers, smell is big, and stickiness is high, and hardly possible utilizes, and brings a large amount of problems to being further processed, using and disposing.
Chinese invention patent application 201810064280.0 proposes one kind continuous greasy filth environment-friendly treating process and utilizes two
Secondary combustion method carries out twice combustion processing to pyrolysis waste residue and pyrolysis gas, it is therefore prevented that greasy filth may occur in pyrolytic process
It is pyrolyzed incomplete problem, the pyrolysis not exclusively remaining chemical substance of institute is subjected to burning processing, while to caused by greasy filth
Tail gas carries out environmental protection treatment, pollution of the subsequent discharge to environment is prevented, to substantially increase the continuous greasy filth environmental protection treatment work
The using effect of skill.The problems such as this solves the final environmental protection burning processing of greasy filth, but by greasy filth character and calorific value
It restricts, cannot achieve its use on the coal gasification apparatus of dry feed.
Chinese invention patent application 201410602331.2 proposes a kind of method for preparing needle-shape coke raw material, this method
Including delayed coking reaction will be carried out in the mixed raw material injection coke drum for passing through the heating of heating furnace radiant section, through the invention
Method can efficiently use catalytic cracked oil pulp, and reduce the green coke of process, to increase the yield of needle-shape coke raw material.But it should
Method cannot achieve the reasonable utilization of slurry oil low volatility component, and the investment of coking processing mode is excessive.
Chinese invention patent 00110020.3 proposes a kind of method of FCC slurry catalytic cracking, and this method solve FCC
The method that each component sub-prime utilizes in slurry oil can not make it as the coal chemical engineering equipment of feeding-in solid body although realizing sub-prime
Raw material.
With the development of coal chemical industry, how by the low asphalitine dregs of fat be modified under the premise of not losing ingredient with
The requirement for meeting the coal chemical engineering equipment of feeding-in solid body becomes urgent problem to be solved in industry.
Summary of the invention
To solve the problems, such as that improving dregs of fat softening point in the prior art meets the coal chemical engineering equipment ingredient requirement of dry method pan feeding,
The present invention provides a kind of method of modified low asphalitine dregs of fat mixed coal powder of semicoke, and this method is using semi-coke powder as packing material
And adsorbent material, the gradation semi-coke powder of dregs of fat amount 20-80% is sufficiently mixed with the dregs of fat, allows semicoke sufficiently to adsorb low in the dregs of fat
Boilers, the dregs of fat for keeping semicoke modified become granular media by sticky semisolid, and the thinner granular media and drying after sieving are crushed
Coal mixing, carry out powder processed into fuel pulverizing plant, thicker granular media returns to mixing arrangement and repeats mixing refinement.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of method of the modified low asphalitine dregs of fat mixed coal powder of semicoke, semicoke are mixed with the dregs of fat, and semicoke is made to adsorb the dregs of fat
In residual low-boiling point material, the asphalitine in the dregs of fat makes semicoke and the dregs of fat be bonded into loose inviscid granular media, by the granular media
The coal being crushed with drying mixes, and dry method powder is carried out in powder manufacturing apparatus, and the coal dust for being mixed with granular media is made.
A kind of method of the modified low asphalitine dregs of fat mixed coal powder of semicoke, comprising the following steps:
S1, semicoke pretreatment: semicoke is divided into two parts, a portion is ground, and is prepared into semicoke fine powder, another
Part is not processed；
S2, mixing: semicoke fine powder, untreated semicoke and the dregs of fat, interface modifier are placed in mixed stirring device and mixed
Close dispersion；
S3, screening: the screened device of the material being mixed in step S2 is sieved；
S4, secondary agitation: in the step S3 in the mixed stirring device of unsifted coarse powder return step S2, into next time
Circulation, further mixing dispersion, repeats step S3, until material all screened device sievings；
S5, powder processed: by screened material in step S3 and S4 and the coal that has been crushed of drying be added together fuel pulverizing plant (ball mill,
Raymond mill) in grind 45-60min, obtaining average grain diameter is 40-70 μm of powder.
Further, in the step S1, the average grain diameter of the semicoke fine powder after milled processed is 10-50 μm；It does not do and locates
200 μm of the semicoke average grain diameter < of reason.
Further, in the step S2, the mass ratio of semicoke fine powder and the mixing of untreated semicoke is 1:1 to 3:1, is ground
Semicoke fine powder after mill is mixed with semicoke is not ground to improve the packing efficiency of semicoke.Semicoke fine powder and untreated semicoke quality and
It is the 20 ~ 80% of dregs of fat quality.
Further, in the step S2, interface modifier is NP-10 or NP-30, and dosage is semicoke fine powder and untreated
The 0.1 ~ 1.0% of semicoke quality sum.Interface modifier is the surfactant for improving semicoke and dregs of fat compatibility.
Further, in the step S2, first the dregs of fat is placed in mixed stirring device and are heated to 50-80 DEG C, then will be partly
Burnt fine powder, untreated semicoke, interface modifier are added in mixed stirring device, and 15- is mixed in revolving speed 350-500rpm
30min, at least 90% above by 14 mesh standard sieves.
Further, the semicoke is coal gasification semicoke, specific surface 40-200m2/g。
Further, the dregs of fat are the low asphalitine dregs of fat of coal chemical industry, and wherein oil sands bitumen matter content is 10-30%.
Further, the mixed stirring device is solid/liquid or solid/solid mixed stirring device, such as vertical bevel
Shape mixing machine, horizontal twin-screw compounder；
Further, the screening plant is rotor-vibrating screen, and the rotor-vibrating screen is 14-40 the polished standard screen.
Further, in the step S5, screened material and the mass ratio for drying the coal being crushed are 1:3 to 1:99,
The coal being crushed of drying is the coal dust for being 100-200 μm by average grain diameter made from 14-40 mesh.
Compared with prior art, the invention has the following advantages:
The present invention provides a kind of method of modified low asphalitine dregs of fat mixed coal powder of semicoke, and this method is using wider size distribution particle
Micron order semi-coke powder at a certain temperature by the semi-coke powder of dregs of fat amount 20-80% is being mixed as packing material and adsorbent material
Carry out being sufficiently mixed dispersion in equipment, semicoke allowed sufficiently to adsorb the low-boiling point material in the dregs of fat, and make the dregs of fat/semicoke mixture at
For granular media, the coal dust that granular media and drying have been crushed is mixed into fuel pulverizing plant powder.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Below with reference to embodiment, the present invention will be further explained.
Embodiment 1
1.5kg semicoke is milled into the fine powder that average grain diameter is 25 μm, the semicoke that 0.5kg is not ground (average grain in the ball mill
Diameter is 100 μm) mixed gradation.The 2.5kgCCSI dregs of fat (asphaltenes 10%) are added in mixing arrangement, are heated to 60 DEG C,
Add 2kg gradation coke powder, 2gNP-10, mixing 15min(revolving speed is 400 rpm), granular media crosses 40 mesh standard sieves, on sieve
Object 500g is returned in mixing arrangement.The granular media and 3kg weighed under 1kg sieve dries the Yulin coal being crushed, and is added in ball mill and grinds
The powder that average grain diameter is 70 μm is made in 45min processed.
Embodiment 2
2.0kg semicoke is milled into the fine powder that average grain diameter is 20 μm, the semicoke that 1.0kg is not ground (average grain in the ball mill
Diameter is 100 μm) mixed gradation.The 4.0kgCCSI dregs of fat (asphaltenes 20%) are added in mixing arrangement, are heated to 70 DEG C,
2.0kg gradation coke powder, 20gNP-20 are added, mixing 20min(revolving speed is 350 rpm), granular media crosses 30 mesh standard sieves, sieve
Upper object 400g is returned in mixing arrangement.The granular media and 4.5kg weighed under 0.5kg sieve dries the red building woods coal being crushed, and thunder is added
Mill is covered, the powder that average grain diameter is 48 μm is made.
Embodiment 3
1.5kg semicoke is milled into the fine powder that average grain diameter is 25 μm, the semicoke that 1.5kg is not ground (average grain in the ball mill
Diameter is 100 μm) mixed gradation.The 4kgCCSI dregs of fat (asphaltenes 10%) are added in mixing arrangement, are heated to 80 DEG C, then
1kg gradation coke powder is added, 25min(revolving speed is mixed is 500 rpm), granular media crosses 14 mesh standard sieves, and oversize 300g returns mixed
It attaches together in setting.The granular media and 5kg weighed under 0.25kg sieve dries the Yulin coal being crushed, and is added in ball mill and grinds 60min, makes
Obtain the powder that average grain diameter is 55 μm.
Embodiment 4
1.5kg semicoke is milled into the fine powder that average grain diameter is 10 μm, the semicoke that 1.5kg is not ground (average grain in the ball mill
Diameter is 150 μm) mixed gradation.The 3.0kgCCSI dregs of fat (asphaltenes 30%) are added in mixing arrangement, are heated to 70 DEG C,
Add 1.5kg gradation coke powder, 15gNP-30 mixing 16min(revolving speed is 350 rpm), granular media crosses 20 mesh standard sieves, sieve
Upper object 200g is returned in mixing arrangement.The granular media and 5kg weighed under 0.2kg sieve dries the Yulin coal being crushed, and ball mill is added
In grind 50min, it is 53 μm of powder that average grain diameter, which is made,.
Embodiment 5
2.0kg semicoke is milled into the fine powder that average grain diameter is 50 μm, the semicoke that 1.0kg is not ground (average grain in the ball mill
Diameter is 150 μm) mixed gradation.The 3.0kgCCSI dregs of fat (asphaltenes 10%) are added in mixing arrangement, are heated to 75 DEG C,
Add 1.5kg gradation coke powder, 3.0gNP-10 mixing 15min(revolving speed is 400 rpm), granular media crosses 40 mesh standard sieves, sieve
Upper object 250g is returned in mixing arrangement.The granular media and 4.5kg weighed under 0.5kg sieve dries the red building woods coal being crushed, and ball is added
60min is ground in grinding machine, and the powder that average grain diameter is 40 μm is made.
Embodiment 6
1.5kg semicoke is milled into the fine powder that average grain diameter is 45 μm, the semicoke that 1.5kg is not ground (average grain in the ball mill
Diameter is 90 μm) mixed gradation.The 3.0kgCCSI dregs of fat (asphaltenes 10%) are added in mixing arrangement, are heated to 50 DEG C,
0.6kg gradation coke powder, 6gNP-10 are added, mixing 30min(revolving speed is 350 rpm), granular media crosses 20 mesh standard sieves, sieve
Upper object 400g is returned in mixing arrangement.The granular media and 99kg weighed under 1kg sieve dries the red building woods coal being crushed, and ball mill is added
In grind 45min, it is 63 μm of powder that average grain diameter, which is made,.
Embodiment 7
A kind of method of the modified low asphalitine dregs of fat mixed coal powder of semicoke, in the raw material of selection, semicoke is coal gasification semicoke, ratio
Surface is 40m2/ g, the dregs of fat are the low asphalitine dregs of fat of coal chemical industry, and wherein oil sands bitumen matter content is 10%；Including following step
It is rapid:
S1, semicoke pretreatment: being divided into two parts for semicoke, and wherein 1kg is ground, and being prepared into average grain diameter is 10 μm half
Burnt fine powder, be not processed 100 μm of semicoke average grain diameter of 1kg；Semicoke fine powder and untreated semicoke quality and be dregs of fat quality
20~80%
The 10kg dregs of fat: being first placed in vertical conical mixing machine and be heated to 50 DEG C by S2, mixing, then by total 2kg semicoke fine powder,
Untreated semicoke, 1g interface modifier NP-30 are added in vertical conical mixing machine, and 15min is mixed in revolving speed 350rpm；
S3, screening: the material being mixed in step S2 is sieved through the rotor-vibrating screen of 14 mesh standard sieves；
S4, secondary agitation: in the step S3 in the vertical conical mixing machine of unsifted coarse powder return step S2, entrance is next
Secondary circulation, further mixing dispersion, repeats step S3, until material is all sieved through rotor-vibrating screen；
S5, powder processed: taking screened material in 1kg step S3 and S4, take 3kg to dry and pass through 14 meshes be made average grain diameter be
100 μm of coal dust is added in ball mill grinds 45min together, obtains the powder that average grain diameter is 40 μm.
Embodiment 8
A kind of method of the modified low asphalitine dregs of fat mixed coal powder of semicoke, in the raw material of selection, semicoke is coal gasification semicoke, ratio
Surface is 200m2/ g, the dregs of fat are the low asphalitine dregs of fat of coal chemical industry, and wherein oil sands bitumen matter content is 30%；Including following step
It is rapid:
S1, semicoke pretreatment: being divided into two parts for semicoke, and wherein 1kg is ground, and being prepared into average grain diameter is 50 μm half
Burnt fine powder, be not processed 150 μm of semicoke average grain diameter of 3kg；Semicoke fine powder and untreated semicoke quality and be dregs of fat quality
20~80%
The 5kg dregs of fat: being first placed in horizontal twin-screw compounder and be heated to 80 DEG C by S2, mixing, then total 4kg semicoke is thin
Powder, untreated semicoke, 0.4g interface modifier NP-10 are added in horizontal twin-screw compounder, and revolving speed 500rpm is mixed
30min, at least 90% above by 40 mesh standard sieves；
S3, screening: the material being mixed in step S2 is sieved through the rotor-vibrating screen of 40 mesh standard sieves；
S4, secondary agitation: in the step S3 in the horizontal twin-screw compounder of unsifted coarse powder return step S2, under
One cycle, further mixing dispersion, repeats step S3, until material is all sieved through rotor-vibrating screen；
S5, powder processed: taking screened material in 3kg step S3 and S4, take 99kg to dry and pass through 40 meshes be made average grain diameter be
200 μm of coal dust is added in ball mill grinds 60min together, obtains the powder that average grain diameter is 70 μm.
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 (10)
1. a kind of method of the modified low asphalitine dregs of fat mixed coal powder of semicoke, it is characterised in that: semicoke is mixed with the dregs of fat, is made
Semicoke adsorbs the residual low-boiling point material in the dregs of fat, and the asphalitine in the dregs of fat makes semicoke and the dregs of fat be bonded into loose inviscid dissipate
The granular media is mixed with the coal that drying has been crushed, dry method powder is carried out in powder manufacturing apparatus, the coal dust for being mixed with granular media is made by body.
2. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 1, which is characterized in that including with
Lower step:
S1, semicoke pretreatment: semicoke is divided into two parts, a portion is ground, and is prepared into semicoke fine powder, another
Part is not processed；
S2, mixing: semicoke fine powder, untreated semicoke and the dregs of fat, interface modifier are placed in mixed stirring device and mixed
Close dispersion；
S3, screening: the screened device of the material being mixed in step S2 is sieved；
S4, secondary agitation: in the step S3 in the mixed stirring device of unsifted coarse powder return step S2, into next time
Circulation, further mixing dispersion, repeats step S3, until material all screened device sievings；
S5, powder processed: powder processed in fuel pulverizing plant is added in the coal that screened material in step S3 and S4 and drying have been crushed together.
3. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that the step
In rapid S1, the average grain diameter of the semicoke fine powder after milled processed is 10-50 μm；200 μm of semicoke average grain diameter < being not processed.
4. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that the step
In rapid S2, the mass ratio of semicoke fine powder and the mixing of untreated semicoke is 1:1 to 3:1, semicoke fine powder and untreated semicoke quality
With 20 ~ 80% for dregs of fat quality.
5. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that the step
In rapid S2, interface modifier NP-10, NP-20 or NP-30, dosage for semicoke fine powder and untreated semicoke quality sum 0.1 ~
1.0%。
6. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that the step
In rapid S2, first the dregs of fat are placed in mixed stirring device and are heated to 50-80 DEG C, then by semicoke fine powder, untreated semicoke, interface
Modifying agent is added in mixed stirring device, and 15-30min is mixed in revolving speed 350-500rpm.
7. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that described half
Coke is coal gasification semicoke, specific surface 40-200m2/g。
8. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that the oil
Slag is the low asphalitine dregs of fat of coal chemical industry, and wherein oil sands bitumen matter content is 10-30%.
9. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that described mixed
Closing agitating device is solid/liquid or solid/solid mixed stirring device；The screening plant is rotor-vibrating screen, the rotation
Turning vibrating screen is 14-40 the polished standard screen.
10. the method for the modified low asphalitine dregs of fat mixed coal powder of semicoke according to claim 2, which is characterized in that described
In step S5, the mass ratio of coal that screened material and drying be crushed is 1:3 to 1:99, the coal that the drying has been crushed be through
Cross the coal dust that average grain diameter made from 14-40 mesh is 100-200 μm.
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Application publication date: 20190827 |