CN105567269A - Adhesive-free briquette coking method - Google Patents
Adhesive-free briquette coking method Download PDFInfo
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- CN105567269A CN105567269A CN201510961567.XA CN201510961567A CN105567269A CN 105567269 A CN105567269 A CN 105567269A CN 201510961567 A CN201510961567 A CN 201510961567A CN 105567269 A CN105567269 A CN 105567269A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/08—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
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- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention discloses an adhesive-free briquette coking method. The method includes the processes of coking coal preparation, briquette preparation, blended coal preparation and coking, to be more specific, weighing corresponding coal materials according to a set coal blending composition prior to crushing and uniform mixing, and adjusting the moisture content to 8-12% to obtain blended coal, wherein the coal blending composition comprises, by weight, 10% of prime coking coal, 35% of blended prime coking coal, 30% of blended 1/3 coking coal, 15% of plate minor coal and 10% of 1/3 coking coal; feeding 20-25% of the blended coal into a briquetting machine to prepare briquettes under the briquetting pressure of 25-40kg; uniformly mixing the briquettes with the rest blended coal to prepare the blended coal with the moisture content being 8-12%; feeding the blended coal into a coke oven, and performing destructive distillation at the temperature of 1050-1010 DEG C for 16-17h to obtain the target coke. The coking method is simple in process, high in equipment universality and efficient in production. Compared with the coke produced by a top loading coke oven, the coke produced with the coking method has the advantages that the cool strength index M10 of the coke is improved by 0.40-1.40%, and the heat intensity index CSR is increased by 1.07-1.75%.
Description
Technical field
The invention belongs to briquetted coal blending coking technical field, be specifically related to a kind of method of binder free pressure ball coal coking.
Background technology
Traditional briquetted coal blending coking technology refers to takes out about 30.00% by shove charge fine coal, add a certain amount of binding agent kneading, shaping after moulded coal, loading in mixture the coking technology of coking by a certain percentage with fine coal, is the effective measure improving coke quality, expand weakly caking coal or non-caking coal consumption.Existing briquetted coal blending coking process must with addition of certain binding agent in briquette production process, representational briquetting process of joining has two kinds: a kind of be compacting moulded coal coal charge identical with loose shape as-fired coal material, namely briquetting is carried out to a part of coke making and coal blending with addition of binding agent; Another kind carries out briquetting to a part of weakly caking coal in coke making and coal blending with addition of portion of binder.The interpolation of binding agent adds coking cost undoubtedly, and the increase of the energy consumptions such as corresponding wind, water, steam, be also unfavorable for the further cost efficiency of enterprise.Based on this, the present invention is intended to a kind of method researching and developing simple binder free pressure ball coal coking, improves coke quality while reducing production energy consumption.
Summary of the invention
The object of the present invention is to provide a kind of method of binder free pressure ball coal coking.
The object of the present invention is achieved like this: the method for described binder free pressure ball coal coking comprises that coking coal is got the raw materials ready, the preparation of pressure ball coal, Mixture Density Networks preparation and coking process, specifically comprise:
A, coking coal are got the raw materials ready: take corresponding coal charge by the Blending of setting, broken, mixing, and adjustment water ratio to 8 ~ 12%, obtains mixed coal; Described Blending is counted by weight: coking coal 10%, mixed coking coal 35%, mixed 1/3 coking coal 30%, dish thatch coal 15%, 1/3 coking coal 10%;
Prepared by B, pressure ball coal: 20 ~ 25% in mixed coal is sent into ball press, makes pressure ball coal with the forming pressure of 25 ~ 40kg;
Prepared by C, Mixture Density Networks: pressure ball coal and all the other mixed coals are mixed, make the Mixture Density Networks of water ratio 8 ~ 12%;
D, coking: Mixture Density Networks is sent into pit kiln, destructive distillation 16 ~ 17h at 1050 ~ 1010 DEG C, target coke.
Coking process of the present invention does not need to add binding agent in pressure ball coal preparation process, effectively reduces production cost, improves the economic benefit of enterprise.For the Blending after improvement, coking process of the present invention has carried out global optimization to the coal amount ratio for the preparation of pressure ball coal in mixed coal, the moulding process of ball press and the coke making process of Mixture Density Networks, proposes referential index first to the quality control of pressure ball coal.Coking process technique of the present invention is simple, and equipment interoperability is strong, produces efficient.The coke adopting the coking process after improving to produce and top fill the coke (adopt benchmark proportioning, do not use pressure ball coal) that coke oven produces and compare, and the cold strength index M10 of coke improves 0.40 ~ 1.40%, hot strength index CSR improves 1.07 ~ 1.75%.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of coking process of the present invention.
Embodiment
The present invention is further illustrated below, but limited the present invention never in any form, and any conversion done based on training centre of the present invention or replacement, all belong to protection scope of the present invention.
The method of binder free pressure ball coal coking of the present invention comprises that coking coal is got the raw materials ready, the preparation of pressure ball coal, Mixture Density Networks preparation and coking process, specifically comprise:
Described coking coal procedure for preparation refers to: take corresponding coal charge by the Blending of setting, broken, mixing, and adjustment water ratio to 8 ~ 12%, obtains mixed coal; Described Blending is counted by weight: coking coal 10%, mixed coking coal 35%, mixed 1/3 coking coal 30%, dish thatch coal 15%, 1/3 coking coal 10%;
Described pressure ball coal preparation section refers to: 20 ~ 25% in mixed coal is sent into ball press, makes pressure ball coal with the forming pressure of 25 ~ 40kg;
Described Mixture Density Networks preparation section refers to: pressure ball coal and all the other mixed coals are mixed, make the Mixture Density Networks of water ratio 8 ~ 12%;
Described coking process refers to: Mixture Density Networks is sent into pit kiln, destructive distillation 16 ~ 17h at 1050 ~ 1010 DEG C, target coke.
Fragmentation described in coking coal procedure for preparation refers to that particle coal charge being crushed to particle diameter < 3mm accounts for 85 ± 3% of total coal charge.
Described in coking coal procedure for preparation, the water ratio of mixed coal is 10%.
Coking coal described in coking coal procedure for preparation is any one or two kinds of in rich pond coking coal or high grey grace Gui coking coal.
1/3 coking coal described in coking coal procedure for preparation is any one or two kinds of in common 1/3 coking coal or high grey 1/3 coking coal.
Described in pressure ball coal preparation section, ball press is roller press briquetting ball press.
Described in pressure ball coal preparation section, the ultimate compression strength of pressure ball coal is 170 ~ 190N/ ball.
Described in Mixture Density Networks preparation section, the water ratio of Mixture Density Networks is 10%.
The capacity of pit kiln described in coking process is 200kg.
Retorting time described in coking process is 16.5h.
embodiment 1
Blending is counted by weight: rich pond coking coal 10%, mixed coking coal 35%, mixed 1/3 coking coal 30%, dish thatch coal 15%, 1/3 coking coal 10%, gross weight amounts to 268.00kg.
Take corresponding coal charge by the Blending of setting, the particle being crushed to particle diameter < 3mm accounts for 86.5% of total coal charge, mixing, and adjustment water ratio to 8%, obtains mixed coal.In mixed coal 25% is sent into roller press briquetting ball press, makes 67.00kg pressure ball coal with the forming pressure of 30kg.Pressure ball coal and all the other 201.00kg mixed coals are mixed, makes the Mixture Density Networks 268.00kg of water ratio 8%.Mixture Density Networks is sent into the pit kiln of 200kg, destructive distillation 17h at 1050 ~ 1010 DEG C, target coke 198.58kg.
Indexs measure shows: the volatile matter 26.25% of mixed coal, pressure ball coal ultimate compression strength 180N/ ball, and coke quality index is compared with employing benchmark proportioning (not using pressure ball coal), and the cold strength index M10 improvement 0.80% of coke, hot strength index CSR improve 1.16%.
embodiment 2
Blending is counted by weight: rich pond coking coal 10%, mixed coking coal 35%, mixed 1/3 coking coal 30%, dish thatch coal 15%, 1/3 coking coal 10%, gross weight amounts to 260.00kg.
Take corresponding coal charge by the Blending of setting, the particle being crushed to particle diameter < 3mm accounts for 85.5% of total coal charge, mixing, and adjustment water ratio to 12%, obtains mixed coal.In mixed coal 25% is sent into roller press briquetting ball press, and make 65.00kg pressure ball coal with the forming pressure of 40kg, the ultimate compression strength of pressure ball coal is 170 ~ 190N/ ball.Pressure ball coal and all the other 195.00kg mixed coals are mixed, makes the Mixture Density Networks 260.00kg of water ratio 12%.Mixture Density Networks is sent into the pit kiln of 200kg, destructive distillation 16h at 1050 ~ 1010 DEG C, target coke 195.05kg.
Indexs measure shows: the volatile matter 26.38% of mixed coal, pressure ball coal ultimate compression strength 185N/ ball, and coke quality index is compared with employing benchmark proportioning (not using pressure ball coal), and the cold strength index M10 improvement 1.40% of coke, hot strength index CSR improve 1.07%.
embodiment 3
Blending is counted by weight: high grey grace Gui coking coal 10%, mixed coking coal 35%, mixed 1/3 coking coal 30%, dish thatch coal 15%, high grey 1/3 coking coal 10%, gross weight amounts to 265.00kg.
Take corresponding coal charge by the Blending of setting, the particle being crushed to particle diameter < 3mm accounts for 86.0% of total coal charge, mixing, and adjustment water ratio to 10%, obtains mixed coal.In mixed coal 20% is sent into roller press briquetting ball press, and make 53.00kg pressure ball coal with the forming pressure of 25kg, the ultimate compression strength of pressure ball coal is 170 ~ 190N/ ball.Pressure ball coal and all the other 212.00kg mixed coals are mixed, makes the Mixture Density Networks 265.00kg of water ratio 10%.Mixture Density Networks is sent into the pit kiln of 200kg, destructive distillation 16.5h at 1050 ~ 1010 DEG C, target coke 198.00kg.
Indexs measure shows: the volatile matter 27.05% of mixed coal, pressure ball coal ultimate compression strength 175N/ ball, and coke quality index is compared with employing benchmark proportioning (not using pressure ball coal), and the cold strength index M10 improvement 0.40% of coke, hot strength index CSR improve 1.75%.
Claims (10)
1. a method for binder free pressure ball coal coking, it is characterized in that comprising that coking coal is got the raw materials ready, the preparation of pressure ball coal, Mixture Density Networks preparation and coking process, specifically comprise:
A, coking coal are got the raw materials ready: take corresponding coal charge by the Blending of setting, broken, mixing, and adjustment water ratio to 8 ~ 12%, obtains mixed coal; Described Blending is counted by weight: coking coal 10%, mixed coking coal 35%, mixed 1/3 coking coal 30%, dish thatch coal 15%, 1/3 coking coal 10%;
Prepared by B, pressure ball coal: 20 ~ 25% in mixed coal is sent into ball press, makes pressure ball coal with the forming pressure of 25 ~ 40kg;
Prepared by C, Mixture Density Networks: pressure ball coal and all the other mixed coals are mixed, make the Mixture Density Networks of water ratio 8 ~ 12%;
D, coking: Mixture Density Networks is sent into pit kiln, destructive distillation 16 ~ 17h at 1050 ~ 1010 DEG C, target coke.
2. coking process according to claim 1, is characterized in that described in operation A, fragmentation refers to that particle coal charge being crushed to particle diameter < 3mm accounts for 85 ± 3% of total coal charge.
3. coking process according to claim 1, is characterized in that the water ratio of mixed coal described in operation A is 10%.
4. coking process according to claim 1, is characterized in that coking coal described in operation A is any one or two kinds of in rich pond coking coal or high grey grace Gui coking coal.
5. coking process according to claim 1, is characterized in that 1/3 coking coal described in operation A is any one or two kinds of in common 1/3 coking coal or high grey 1/3 coking coal.
6. coking process according to claim 1, is characterized in that ball press described in process B is roller press briquetting ball press.
7. coking process according to claim 1, is characterized in that the ultimate compression strength of pressure ball coal described in process B is 170 ~ 190N/ ball.
8. coking process according to claim 1, is characterized in that the water ratio of Mixture Density Networks described in operation C is 10%.
9. coking process according to claim 1, is characterized in that the capacity of pit kiln described in step D is 200kg.
10. coking process according to claim 1, is characterized in that retorting time described in step D is 16.5h.
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| CN201510961567.XA CN105567269A (en) | 2015-12-21 | 2015-12-21 | Adhesive-free briquette coking method |
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| CN201510961567.XA CN105567269A (en) | 2015-12-21 | 2015-12-21 | Adhesive-free briquette coking method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107365594A (en) * | 2017-07-14 | 2017-11-21 | 武汉钢铁有限公司 | The as-fired coal of binder free typed briquette class is coaling method |
| CN107523319A (en) * | 2017-08-15 | 2017-12-29 | 宝钢集团新疆八钢铁有限公司 | A kind of method that coking increases high-quality gas rich coal amount of allocating |
| CN113046106A (en) * | 2021-03-15 | 2021-06-29 | 杜玉婷 | Processing device and method for improving bulk density of coal fed into furnace |
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| JP4265422B2 (en) * | 2004-01-30 | 2009-05-20 | Ｊｆｅスチール株式会社 | Production method of coal for coke oven charging |
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| CN104073274A (en) * | 2013-03-27 | 2014-10-01 | 鞍钢股份有限公司 | Production method of metallurgy coke |
| CN104194813A (en) * | 2014-09-04 | 2014-12-10 | 山东巨铭能源有限公司 | Method for preparing coke |
| CN104293367A (en) * | 2014-09-27 | 2015-01-21 | 武钢集团昆明钢铁股份有限公司 | Coking method of modifying blended coal with non-coking coal |
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2015
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| CN104194813A (en) * | 2014-09-04 | 2014-12-10 | 山东巨铭能源有限公司 | Method for preparing coke |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107365594A (en) * | 2017-07-14 | 2017-11-21 | 武汉钢铁有限公司 | The as-fired coal of binder free typed briquette class is coaling method |
| CN107365594B (en) * | 2017-07-14 | 2020-04-07 | 武汉钢铁有限公司 | Coal charging method for coal as fired without binder |
| CN107523319A (en) * | 2017-08-15 | 2017-12-29 | 宝钢集团新疆八钢铁有限公司 | A kind of method that coking increases high-quality gas rich coal amount of allocating |
| CN113046106A (en) * | 2021-03-15 | 2021-06-29 | 杜玉婷 | Processing device and method for improving bulk density of coal fed into furnace |
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Application publication date: 20160511 |