CN108975299A - A kind of pelletizing fine powder in petroleum cokes method - Google Patents
A kind of pelletizing fine powder in petroleum cokes method Download PDFInfo
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- CN108975299A CN108975299A CN201810878163.8A CN201810878163A CN108975299A CN 108975299 A CN108975299 A CN 108975299A CN 201810878163 A CN201810878163 A CN 201810878163A CN 108975299 A CN108975299 A CN 108975299A
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- petroleum
- fine powder
- bonding agent
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- coke
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
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Abstract
The present invention provides a kind of pelletizing fine powder in petroleum cokes method, including raw material preparation, prepares bonding agent, mixed-forming, post-processing step.The raw material preparation: petroleum coke fines are crushed to 80-90 mesh, it imports in deionized water and impregnates, dispersed with the deionized water of 3 times of petroleum coke fines volumes, and stir 10-15min under conditions of 800-1000rpm, suction filtration obtains solid phase, dry to moisture 14-18%.The petroleum coke powder balling-up effect of the method for the present invention preparation is good, and compression strength is high.
Description
Technical field
The present invention relates to a kind of methods of pelletizing fine powder in petroleum cokes, belong to carbon industry technology field.
Background technique
Petroleum coke fines are to be squeezed that the mechanisms such as friction are broken to be formed in decoking and transporting procedures；These fine powder mesh
It is preceding to be also difficult to efficiently use.Petroleum coke fines are measured bigger at present, but are limited at present by petroleum coke coking technique, coking process
Production, petroleum coke fines particle is high in (0.1 ~ 0.4mm of diameter) fugitive constituent high thermal expansion coefficient, cannot be directly used to electrode preparation
With carbon industry.Petroleum coke fines granularity is less than 1mm, and in calcination process, a large amount of petroleum coke fines aoxidize burning at high temperature
Damage, causes that casting yield is low, a large amount of wastage of material.
Therefore, to make full use of petroleum coke fines, blocky-shaped particle coke is converted by petroleum coke fines, is needed petroleum coke is thin
Powder bonds balling-up.Then, the petroleum coke fines of balling-up are calcined, is prepared into calcined coke；Therefore, it is forged to meet it in high temperature
High mechanical strength requirement under burning, not broken by burning, those skilled in the art have been devoted to study a kind of pelletizing fine powder in petroleum cokes
Method.
The method of CN200810013198.1 pelletizing fine powder in petroleum cokes includes the following steps: the grab bucket day in raw material storage
Raw petroleum coke is grabbed to send and is classified into size classification apparatus by vehicle, and the raw petroleum coke after classification is handled, and is led to after processing
It crosses third belt conveyor and send to the second bucket elevator and be transported to material before calcined storehouse.Using process of the invention, by raw stone
Oil coke is pre-processed before calcination, and the fine powder in raw petroleum coke carries out balling-up processing.It is this to pass through nodulizer mechanical compaction
At petroleum focal sphere, under the high temperature conditions, mechanical strength is poor, and percentage of damage is higher.
Summary of the invention
The problem to be solved in the present invention is against the above deficiency, to provide a kind of pelletizing fine powder in petroleum cokes method, is realized following
Goal of the invention: making pelletizing fine powder in petroleum cokes, and mechanical strength with higher is not burnt broken, reduction carbon loss in high-temperature calcination
It loses.
For achieving the above object, using following technical scheme:
A kind of pelletizing fine powder in petroleum cokes method, comprising the following steps:
Step 1, raw material preparation
Petroleum coke fines are crushed to 80-90 mesh, imports in deionized water and impregnates, with 3 times of petroleum coke fines volumes go from
Sub- water dispersion, and 10-15min is stirred under conditions of 800-1000rpm, suction filtration obtains solid phase, dry to moisture 14-18%.
Step 2 prepares bonding agent
The raw material of bonding agent includes: coal tar, wood vinegar, eucalyptus oil, stone needle particle, sodium cetanesulfonate, carbon black, silicon powder
Mass ratio are as follows: 85-90:52-58:40-43:0-8:0-5:0-7:0-7.
The coal tar: density 1.18g/cm3, sulfur content 2.5%；
The wood vinegar: pH 3, active constituent content 99.9%；
The eucalyptus oil: contain Cineole 70%, relative density 0.895 ~ 0.920；
The stone needle particle: granularity is 1200 mesh；
The silicon powder: grain size of micropowder 100-120nm.
The preparation method of bonding agent:
(1) it weighs: weighing each raw material component according to formula.
(2) it pre-processes: wood vinegar, stone needle particle, silicon powder being mixed, are stirred immersion, stirring rate 80rpm,
Soaking time is 4h.After immersion, dispersion liquid A is obtained；
(3) it reacts: coal tar, eucalyptus oil, sodium cetanesulfonate, carbon black being added sequentially in dispersion liquid A, and start to stir
It mixes, is sufficiently mixed；
It after mixing, begins to warm up, control heating temperature is 90-92 DEG C, heating time 1.5h；After the reaction was completed, it is cooled to often
Temperature.
(4) it activates: then, living under the conditions of 180-190 DEG C by the ball mill ball milling 50-60min of the mixture after reaction
Change 10-15min, obtains bonding agent.
Step 3, mixed-forming
Step 1 treated petroleum coke fines are sufficiently mixed with bonding agent prepared by step 2, petroleum coke fines and bonding agent
Mass ratio is 4:1；Mixed petroleum coke material imports nodulizer, is prepared into the petroleum focal sphere that diameter is 40-50mm.
Step 4, post-processing
Petroleum focal sphere is dried, drying temperature is 75-80 DEG C, drying time 1-1.5h, and the moisture content after drying is low
In 6%.
Compared with prior art, technical solution of the present invention has the advantages that
(1) the petroleum focal sphere of detection preparation, green coke compression strength 70-121kg/cm3, density 1.34-1.45g/cm3 。
(2) above-mentioned petroleum focal sphere is calcined under the conditions of 1300 DEG C 35h, calcined coke is discharged；Through counting, calcined coke percentage of damage
For 2.5-11.5%, the carbon loss 2.8-4.1% of calcined coke, real density 2.08-2.21 g/cm3, compression strength 90-137kg/cm3。
Specific embodiment
A kind of pelletizing fine powder in petroleum cokes method of embodiment 1
The following steps are included:
Step 1, raw material preparation
Petroleum coke fines are crushed to 80 mesh, imports in deionized water and impregnates, with the deionized water of 3 times of petroleum coke fines volumes
Dispersion, and 10min is stirred under conditions of 1000rpm, suction filtration obtains solid phase, dry to moisture 14%.
Step 2 prepares bonding agent
The raw material of bonding agent includes: coal tar, wood vinegar, eucalyptus oil, sodium cetanesulfonate, silicon powder mass ratio are as follows: 90:
52:40:1:2.
The coal tar: density 1.18g/cm3, sulfur content 2.5%；
The wood vinegar: pH 3, active constituent content 99.9%；
The eucalyptus oil: contain Cineole 70%, relative density 0.920；
The silicon powder: grain size of micropowder 100nm.
The preparation method of bonding agent:
(1) it weighs: weighing each raw material component according to formula.
(2) it pre-processes: wood vinegar, silicon powder being mixed, are stirred immersion, stirring rate 80rpm, soaking time is
4h.After immersion, dispersion liquid A is obtained；
(3) it reacts: coal tar, eucalyptus oil, sodium cetanesulfonate being added sequentially in dispersion liquid A, and start to stir, sufficiently
Mixing；
It after mixing, begins to warm up, control heating temperature is 90 DEG C, heating time 1.5h；After the reaction was completed, it is cooled to room temperature.
(4) it activates: then the ball mill ball milling 60min of the mixture after reaction, is activated under the conditions of 180 DEG C
10min obtains bonding agent.
Step 3, mixed-forming
Step 1 treated petroleum coke fines are sufficiently mixed with bonding agent prepared by step 2, petroleum coke fines and bonding agent
Mass ratio is 4:1；Mixed petroleum coke material imports nodulizer, is prepared into the molding petroleum focal sphere that diameter is 40-50mm.
Step 4, post-processing
Molding petroleum focal sphere is dried, drying temperature is 75 DEG C, and drying time 1.5h, the moisture content after drying is lower than
6%, obtain the petroleum focal sphere that can be used for high-temperature calcination.
Experiment detection:
(1) the petroleum focal sphere of detection preparation, green coke compression strength 70kg/cm3, density 1.34g/cm3 。
(2) above-mentioned petroleum focal sphere is calcined under the conditions of 1300 DEG C 35h, calcined coke is discharged；Through counting, calcined coke percentage of damage
It is 11.5%, the carbon loss 4.1% of calcined coke, 2.08 g/cm of real density3, compression strength 90kg/cm3。
A kind of pelletizing fine powder in petroleum cokes method of embodiment 2
The following steps are included:
Step 1, raw material preparation
Petroleum coke fines are crushed to 80 mesh, imports in deionized water and impregnates, with the deionized water of 3 times of petroleum coke fines volumes
Dispersion, and 10min is stirred under conditions of 1000rpm, suction filtration obtains solid phase, dry to moisture 16%.
Step 2 prepares bonding agent
The raw material of bonding agent includes: coal tar, wood vinegar, eucalyptus oil, stone needle particle, sodium cetanesulfonate, carbon black, silicon powder
Mass ratio are as follows: 86:55:41:4:3:3:3.
The coal tar: density 1.18g/cm3, sulfur content 2.5%；
The wood vinegar: pH 3, active constituent content 99.9%；
The eucalyptus oil: contain Cineole 70%, relative density 0.915；
The stone needle particle: granularity is 1200 mesh；
The silicon powder: grain size of micropowder 110nm.
The preparation method of bonding agent:
(1) it weighs: weighing each raw material component according to formula.
(2) it pre-processes: wood vinegar, stone needle particle, silicon powder being mixed, are stirred immersion, stirring rate 80rpm,
Soaking time is 4h.After immersion, dispersion liquid A is obtained；
(3) it reacts: coal tar, eucalyptus oil, sodium cetanesulfonate, carbon black being added sequentially in dispersion liquid A, and start to stir
It mixes, is sufficiently mixed；
It after mixing, begins to warm up, control heating temperature is 92 DEG C, heating time 1.5h；After the reaction was completed, it is cooled to room temperature.
(4) it activates: then the ball mill ball milling 60min of the mixture after reaction, is activated under the conditions of 180 DEG C
15min obtains bonding agent.
Step 3, mixed-forming
Step 1 treated petroleum coke fines are sufficiently mixed with bonding agent prepared by step 2, petroleum coke fines and bonding agent
Mass ratio is 4:1；Mixed petroleum coke material imports nodulizer, is prepared into the petroleum focal sphere that diameter is 50mm.
Step 4, post-processing
Petroleum focal sphere is dried, drying temperature is 80 DEG C, drying time 1h, and the moisture content after drying is lower than 6%.
Experiment detection:
(1) the petroleum focal sphere of detection preparation, green coke compression strength 107kg/cm3, density 1.42g/cm3 。
(2) above-mentioned petroleum focal sphere is calcined under the conditions of 1300 DEG C 35h, calcined coke is discharged；Through counting, calcined coke percentage of damage
It is 4.5%, the carbon loss 3.3% of calcined coke, real density 2.16g/cm3, compression strength 115kg/cm3。
A kind of pelletizing fine powder in petroleum cokes method of embodiment 3
The following steps are included:
Step 1, raw material preparation
Petroleum coke fines are crushed to 80 mesh, imports in deionized water and impregnates, with the deionized water of 3 times of petroleum coke fines volumes
Dispersion, and 10min is stirred under conditions of 1000rpm, suction filtration obtains solid phase, dry to moisture 17%.
Step 2 prepares bonding agent
The raw material of bonding agent includes: coal tar, wood vinegar, eucalyptus oil, stone needle particle, sodium cetanesulfonate, carbon black, silicon powder
Mass ratio are as follows: 88:57:42:7:2:1:6.
The coal tar: density 1.18g/cm3, sulfur content 2.5%；
The wood vinegar: pH 3, active constituent content 99.9%；
The eucalyptus oil: contain Cineole 70%, relative density 0.895；
The stone needle particle: granularity is 1200 mesh；
The silicon powder: grain size of micropowder 120nm.
The preparation method of bonding agent:
(1) it weighs: weighing each raw material component according to formula.
(2) it pre-processes: wood vinegar, stone needle particle, silicon powder being mixed, are stirred immersion, stirring rate 80rpm,
Soaking time is 4h.After immersion, dispersion liquid A is obtained；
(3) it reacts: coal tar, eucalyptus oil, sodium cetanesulfonate, carbon black being added sequentially in dispersion liquid A, and start to stir
It mixes, is sufficiently mixed；
It after mixing, begins to warm up, control heating temperature is 90 DEG C, heating time 1.5h；After the reaction was completed, it is cooled to room temperature.
(4) it activates: then the ball mill ball milling 55min of the mixture after reaction, is activated under the conditions of 188 DEG C
15min obtains bonding agent.
Step 3, mixed-forming
Step 1 treated petroleum coke fines are sufficiently mixed with bonding agent prepared by step 2, petroleum coke fines and bonding agent
Mass ratio is 4:1；Mixed petroleum coke material imports nodulizer, is prepared into the petroleum focal sphere that diameter is 45mm.
Step 4, post-processing
Petroleum focal sphere is dried, drying temperature is 80 DEG C, drying time 1h, and the moisture content after drying is lower than 6%.
Experiment detection:
(1) the petroleum focal sphere of detection preparation, green coke compression strength 121kg/cm3, density 1.45g/cm3 。
(2) above-mentioned petroleum focal sphere is calcined under the conditions of 1300 DEG C 35h, calcined coke is discharged；Through counting, calcined coke percentage of damage
It is 2.5%, the carbon loss 2.8% of calcined coke, 2.21 g/cm of real density3, compression strength 137kg/cm3。
In addition to specified otherwise, percentage of the present invention is mass percent, and the ratio is mass ratio.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
It, for those skilled in the art, still can be with although describing the invention in detail with reference to the foregoing embodiments
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in guarantor of the invention
Within the scope of shield.
Claims (7)
1. a kind of pelletizing fine powder in petroleum cokes method, it is characterised in that: including raw material preparation, prepare bonding agent, mixed-forming, rear place
Manage step.
2. a kind of pelletizing fine powder in petroleum cokes method according to claim 1, it is characterised in that: the raw material preparation: will
Petroleum coke fines are crushed to 80-90 mesh, import in deionized water and impregnate, with the deionization moisture of 3 times of petroleum coke fines volumes
It dissipates, and stirs 10-15min under conditions of 800-1000rpm, suction filtration obtains solid phase, dry to moisture 14-18%.
3. a kind of pelletizing fine powder in petroleum cokes method according to claim 1, it is characterised in that: described prepares bonding agent:
The raw material of bonding agent includes: coal tar, wood vinegar, eucalyptus oil, stone needle particle, sodium cetanesulfonate, carbon black, silicon powder quality
Than are as follows: 85-90:52-58:40-43:0-8:0-5:0-7:0-7.
4. a kind of pelletizing fine powder in petroleum cokes method according to claim 3, it is characterised in that: the coal tar: density
For 1.18g/cm3, sulfur content 2.5%；
The wood vinegar: pH 3, active constituent content 99.9%；
The eucalyptus oil: contain Cineole 70%, relative density 0.895 ~ 0.920.
5. a kind of pelletizing fine powder in petroleum cokes method according to claim 3, it is characterised in that: the stone needle particle: grain
Degree is 1200 mesh；
The silicon powder: grain size of micropowder 100-120nm.
6. a kind of pelletizing fine powder in petroleum cokes method according to claim 1, it is characterised in that: the mixed-forming: stone
The mass ratio of oil coke fine powder and bonding agent is 4:1；Mixed petroleum coke material imports nodulizer, and being prepared into diameter is 40-50mm
Petroleum focal sphere.
7. a kind of pelletizing fine powder in petroleum cokes method according to claim 1, it is characterised in that: the post-processing: by stone
Oil coke ball is dried, and drying temperature is 75-80 DEG C, drying time 1-1.5h, and the moisture content after drying is lower than 6%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810878163.8A CN108975299A (en) | 2018-08-03 | 2018-08-03 | A kind of pelletizing fine powder in petroleum cokes method |
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| CN201810878163.8A CN108975299A (en) | 2018-08-03 | 2018-08-03 | A kind of pelletizing fine powder in petroleum cokes method |
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| CN108975299A true CN108975299A (en) | 2018-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115058269A (en) * | 2022-06-20 | 2022-09-16 | 河南佰利联新材料有限公司 | Preparation method of petroleum coke raw material and petroleum coke raw material |
-
2018
- 2018-08-03 CN CN201810878163.8A patent/CN108975299A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115058269A (en) * | 2022-06-20 | 2022-09-16 | 河南佰利联新材料有限公司 | Preparation method of petroleum coke raw material and petroleum coke raw material |
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Application publication date: 20181211 |
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