CN102627978A - Petroleum delay casting carbon material and preparation method thereof - Google Patents
Petroleum delay casting carbon material and preparation method thereof Download PDFInfo
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- CN102627978A CN102627978A CN2012101411882A CN201210141188A CN102627978A CN 102627978 A CN102627978 A CN 102627978A CN 2012101411882 A CN2012101411882 A CN 2012101411882A CN 201210141188 A CN201210141188 A CN 201210141188A CN 102627978 A CN102627978 A CN 102627978A
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Abstract
The invention discloses a petroleum delay casting carbon material. The apparent porosity of the petroleum delay casting carbon material is 32 to 40 percent and the granularity of the petroleum delay casting carbon material is 80 to 300mm. The petroleum delay casting carbon material comprises the following raw materials in percentage by weight: 96.2 to 99.1 percent of fixed carbon, 0.2 to 0.8 percent of sulfur content, 0.2 to 1.5 percent of ash content and 0.5 to 1.5 percent of volatile component. A method for preparing the petroleum delay casting carbon material comprises the following steps of: mixing and crushing the raw materials; controlling the water content of the raw materials; tamping the raw materials and performing dry distillation on the raw materials in a coke oven; and performing post treatment on a product. The proportion of the raw materials of the petroleum delay casting carbon material which is produced by taking petroleum coke as the main raw material, and asphalt and coke powder as auxiliary materials can be adjusted according to the requirement of a user on the quality of the product, so that the characteristics of uniform quality, stability, reliability, large block, high density and high strength can be achieved.
Description
Technical field
The invention belongs to the refinery coke production technical field, be specifically related to a kind of oil and postpone casting carbon material and utilize tamping coke furnace to produce the preparation method that oil postpones casting carbon material.
Background technology
The production of present domestic routine casting coke generally is that main raw material is equipped with pack into after pitch mixes top dress coke oven or tamping coke furnace and carries out high temperature carbonization production with the coking coal, and its foundry coke product of producing is because the decision of its process characteristic, and the product ash content is high; Sulphur content is high; Apparent porosity is high, and fixed carbon content is low, and the yield of product is low in whole grain process; Influence its multiextent application, particularly conventional cast coke and need use China's coking coal resource in short supply.With the foundry coke that ordinary method is produced, because the product ash content is high, sulphur content is high, the consumption that has increased casting industry casting coke also influences quality of castings simultaneously.
Refinery coke (PETroleum coke) is a crude oil after distillation is separating of oil with weight matter, and BO is again through the process of hot tearing, the product that is transformed; From seeing in appearance, refinery coke is an out-of-shape, black not of uniform size block (or particle); Metalluster is arranged, the particle tool multi-pore structure of refinery coke, main elementary composition be carbon; Occupy more than the 80wt%, remaining is hydrogen, oxygen, nitrogen, sulphur and metallic element.Refinery coke has its distinctive physics, chemical property and mechanical properties, itself is heating non-volatility carbon partly, the chemical property of these index decision refinery cokes of volatile matter and dirt (sulphur, water, ash etc.).
Summary of the invention
The purpose of this invention is to provide a kind of oil and postpone casting carbon material and preparation method thereof, this oil postpones that casting carbon material ash content is low, sulphur content is low, compact structure, fixed carbon content are high; The product yield is high among this preparation method, and the oil of being produced postpones casting carbon material and satisfies big lumpiness, HS, highdensity specification of quality.
Technical solution of the present invention is: a kind of oil postpones casting carbon material, and this oil postpones casting carbon material apparent porosity: 32-40%, granularity: 80-300 mm; Sulphur content: 0.2-0.8wt%, ash content: 0.2-1.5wt%, volatile matter: 0.5-1.5wt%, fixed carbon: 96.2-99.1wt%.
A kind of oil postpones the preparation method of casting carbon material; Preparation process is following: a. raw materials mix is broken: refinery coke and pitch are respectively after precrushing; Refinery coke, pitch and coke powder are mixed compounding close even pulverizing; Wherein refinery coke accounts for 35～62wt% of mixing raw material total mass, and pitch weight is 18～30wt%, remains to be coke powder; Mixing raw material after crushed, the particle that makes fineness be less than 3mm accounts for mixing raw material total mass fractional more than 60%;
B. raw material water cut control: the mixing raw material after the pulverizing makes the water cut of mixing raw material account for mixing raw material total mass fractional 12～16% through drying;
C. tamping coke furnace destructive distillation: mixing raw material that will be after drying treatment, through making moulding firm by ramming, send into coke oven and carry out the high temperature carbonization calcining; Calcining temperature is 1000～1300 ℃; Coking time is 26～36 hours, obtains oil and postpones casting carbon material, and oil postpones casting carbon material and sprays the cooling quenching through water; The quenching time is 10～250 seconds, makes oil postpone temperature≤100 ℃ of casting carbon material;
D. product aftertreatment: the oil after coming out of the stove postpones casting carbon material, and granularity is carried out whole grain, handles through screening, and the granularity that makes oil postpone casting carbon material is 80-300 mm.
The present invention has following beneficial effect:
1, the casting coke produced of present domestic routine uses coking coal to be main raw material, because its process characteristic decision, the product ash content is high; Sulphur content is high, and apparent porosity is high, and fixed carbon content is low; The yield of product is low in whole grain process, influences its multiextent application.And the present invention is to be that oil that main raw material is equipped with pitch, coke powder production postpones casting carbon material and can carry out the adjustment of proportioning raw materials according to the user to the specification of quality of product with the refinery coke; Increase the pitch amount of allocating into and can improve product density; Increase the coke powder amount of allocating into and can improve the product lumpiness; Through the ratio of the different refinery coke amounts of allocating into, can make product ash content, sulphur content The profile.Simultaneously can to reach quality even, reliable and stable for product, and lumpiness is big, compact structure, intensity are high.
2, minimizing is avoided environment damage and pollution the use of non-renewable coal resources among the present invention; And refinery coke is utilized fully, reduced production cost, improved enterprise's competitive power in industry.
3, the oil produced of the present invention postpones the burnt 5-9% of reduction of the domestic routine casting of casting carbon material ash rate.
4, the oil produced of the present invention postpone casting carbon material fixed carbon content than the burnt high 6-10% of domestic routine casting.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Embodiment 1
A kind of oil postpones casting carbon material, the apparent porosity of this casting carbon material: 32-40%, sulphur content: 0.2-0.8%, ash content: 0.2-1.5%, volatile matter: 0.5-1.5%, fixed carbon: 96.2-99.1%, granularity: 80-300 mm.
Embodiment 2
A kind of method for preparing oil delay casting carbon material; Production stage is: raw materials mix is broken: refinery coke and pitch add the coke powder uniform mixing respectively after precrushing; With the refinery coke weight ratio be 62%, pitch weight is 18%, coke powder weight is that 20% ratio is mixed and joined; Mix pulverizing then, mixing raw material is after fragmentation, and the particle that makes fineness be less than 3mm accounts for more than 60% of mixing raw material massfraction; The control of raw material water cut: the raw material after the pulverizing is through drying, and moisture controlled is at 12wt%; Coke oven destructive distillation:,, send into coke oven and carry out the high temperature carbonization calcining through making moulding firm by ramming through pretreated raw material; The control calcining temperature is 1000 ℃; Coking time is 36 hours, obtains oil and postpones casting carbon material, and oil postpones casting carbon material and sprays the cooling quenching through water; The quenching time is 10 seconds, makes refinery coke temperature≤100 ℃; The product after-treatment system: the calcined petroleum coke after coming out of the stove, granularity is carried out whole grain, screening is handled, and makes oil postpone the granularity requirements that casting carbon material reaches 80-300 mm.
Said product is through detecting: (wherein ash content, volatile matter examination criteria are SH/T0313; The sulphur content examination criteria is GB/T214; Moisture, fixed carbon examination criteria are that GB/T2001, apparent porosity examination criteria are that GB/T4511.1, granularity Detection standard are GB/T2005, below embodiment 2-4 examination criteria identical with present embodiment)
Ash content: 0.2%
Sulphur content: 0.2%
Volatile matter: 0.5%
Fixed carbon: 99.1%
Apparent porosity: 32.0%
Granularity: 80-120mm.
Embodiment 3
A kind of method for preparing oil delay casting carbon material; Production stage is: raw materials mix is broken: refinery coke and pitch add the coke powder uniform mixing respectively after precrushing; With the refinery coke weight ratio be 35%, pitch weight is 30%, coke powder weight is that 35% ratio is mixed and joined; Mix pulverizing then, mixing raw material is after fragmentation, and the particle that makes fineness be less than 3mm accounts for more than 60% of mixing raw material massfraction; The control of raw material water cut: the raw material after the pulverizing is through drying, and moisture controlled is at 16wt%; Coke oven destructive distillation:,, send into coke oven and carry out the high temperature carbonization calcining through making moulding firm by ramming through pretreated raw material; The control calcining temperature is 1300 ℃; Coking time is 26 hours, obtains oil and postpones casting carbon material, and oil postpones casting carbon material and sprays the cooling quenching through water; The quenching time is 250 seconds, makes oil postpone casting carbon material temperature≤100 ℃; The product after-treatment system: the oil after coming out of the stove postpones casting carbon material, and granularity is carried out whole grain, and screening is handled, and makes oil postpone the granularity requirements that casting carbon material reaches 80-300 mm.
Said product is through detecting:
Ash content: 1.5%
Sulphur content: 0.8%
Volatile matter: 1.5%
Fixed carbon: 96.2%
Apparent porosity: 40.0%
Granularity: 120-300mm.
Embodiment 4
A kind of method for preparing oil delay casting carbon material; Production stage is: raw materials mix is broken: refinery coke and pitch add the coke powder uniform mixing respectively after precrushing; With the refinery coke weight ratio be 48.5%, pitch weight is 24%, coke powder weight is that 27.5% ratio is mixed and joined; Mix pulverizing then, mixing raw material is after fragmentation, and the particle that makes fineness be less than 3mm accounts for more than 60% of mixing raw material massfraction; The control of raw material water cut: the raw material after the pulverizing is through drying, and moisture controlled is at 15wt%; Coke oven destructive distillation:,, send into coke oven and carry out the high temperature carbonization calcining through making moulding firm by ramming through pretreated raw material; The control calcining temperature is 1150 ℃; Coking time is 30 hours, obtains oil and postpones casting carbon material, and oil postpones casting carbon material and sprays the cooling quenching through water; The quenching time is 150 seconds, makes oil postpone casting carbon material temperature≤100 ℃; The product after-treatment system: the oil after coming out of the stove postpones casting carbon material, and granularity is carried out whole grain, and screening is handled, and makes oil postpone the granularity requirements that casting carbon material reaches 80-300 mm.
Said product is through detecting:
Ash content: 0.7%
Sulphur content: 0.5%
Volatile matter: 1.0%
Fixed carbon: 97.8%
Apparent porosity: 36.0%
Granularity: 120-220mm.
Claims (2)
1. an oil postpones casting carbon material, it is characterized in that the apparent porosity of this oil delay casting carbon material is 32～40%, and granularity is 80～300 mm; Fixed carbon: 96.2～99.1wt%; Sulphur content: 0.2～0.8wt%; Ash content: 0.2～1.5wt%; Volatile matter: 0.5～1.5wt%.
2. one kind prepares the method that the described oil of claim 1 postpones casting carbon material, it is characterized in that preparation process is following:
A. raw materials mix is broken: refinery coke and pitch after precrushing, are mixed compounding with refinery coke, pitch and coke powder and are closed even pulverizing respectively, and wherein refinery coke accounts for 35～62wt% of mixing raw material total mass, and pitch weight is 18～30wt%, remain to be coke powder; Mixing raw material after crushed, the particle that makes fineness be less than 3mm accounts for mixing raw material total mass fractional more than 60%;
B. raw material water cut control: the mixing raw material after the pulverizing makes the water cut of mixing raw material account for mixing raw material total mass fractional 12～16% through drying;
C. tamping coke furnace destructive distillation: mixing raw material that will be after drying treatment, through making moulding firm by ramming, send into coke oven and carry out the high temperature carbonization calcining; Calcining temperature is 1000～1300 ℃; Coking time is 26～36 hours, obtains oil and postpones casting carbon material, and oil postpones casting carbon material and sprays the cooling quenching through water; The quenching time is 10～250 seconds, makes oil postpone temperature≤100 ℃ of casting carbon material;
D. product aftertreatment: the oil after coming out of the stove postpones casting carbon material, and granularity is carried out whole grain, handles through screening, and the granularity that makes oil postpone casting carbon material is 80-300 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661337A (en) * | 2015-01-08 | 2015-05-27 | 四川都江堰西马炭素有限公司 | Resistance material and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2235167A1 (en) * | 1972-07-18 | 1974-01-31 | Wilson Carbon S A | Foundry coke production - from petroleum coke, coal pitch and anthracite mixts with pre-calcining of one component |
| CN1097021A (en) * | 1993-06-29 | 1995-01-04 | 于庆琛 | A kind of method of making casting formed coke with coke powder |
| CN1287147A (en) * | 2000-08-29 | 2001-03-14 | 镇江焦化煤气集团公司 | Technological process of producing calcined petroleum coke in coke oven |
| CN101362971A (en) * | 2008-09-19 | 2009-02-11 | 中化镇江焦化有限公司 | High-density calcined petroleum coke and preparation technology thereof |
-
2012
- 2012-05-09 CN CN2012101411882A patent/CN102627978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2235167A1 (en) * | 1972-07-18 | 1974-01-31 | Wilson Carbon S A | Foundry coke production - from petroleum coke, coal pitch and anthracite mixts with pre-calcining of one component |
| CN1097021A (en) * | 1993-06-29 | 1995-01-04 | 于庆琛 | A kind of method of making casting formed coke with coke powder |
| CN1287147A (en) * | 2000-08-29 | 2001-03-14 | 镇江焦化煤气集团公司 | Technological process of producing calcined petroleum coke in coke oven |
| CN101362971A (en) * | 2008-09-19 | 2009-02-11 | 中化镇江焦化有限公司 | High-density calcined petroleum coke and preparation technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 许晓海: "《炼焦化工实用手册》", 30 June 1999, article "焦炭的种类", pages: 147-161 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661337A (en) * | 2015-01-08 | 2015-05-27 | 四川都江堰西马炭素有限公司 | Resistance material and use method thereof |
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Application publication date: 20120808 |