CN110760326A - Method for improving coke strength of coking coal - Google Patents
Method for improving coke strength of coking coal Download PDFInfo
- Publication number
- CN110760326A CN110760326A CN201911037382.4A CN201911037382A CN110760326A CN 110760326 A CN110760326 A CN 110760326A CN 201911037382 A CN201911037382 A CN 201911037382A CN 110760326 A CN110760326 A CN 110760326A
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- China
- Prior art keywords
- coal
- coking
- coke strength
- improving
- coke
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Classifications
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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
- C10B57/045—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing mineral oils, bitumen, tar or the like or mixtures thereof
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to a method for improving coke strength of coking coal, belonging to the field of metallurgy. The method for improving the coke strength of the coking coal sprays the waste oil into the coking blended coal according to a certain proportion, so that the bulk density of the blended coal is increased. The waste oil is used oil used by external equipment. According to the method for improving the coke strength of the coking coal, the waste oil with a certain proportion is added into the coal, so that the bulk density of the coal can be improved, and the coke yield and the coke strength are improved.
Description
Technical Field
The invention relates to a method for improving coke strength of coking coal, belonging to the field of metallurgy.
Background
Coke ovens, a furnace typically built of refractory bricks and refractory blocks, are used to char coal to produce coke, and kilns for making coke from coal. Is the main thermal equipment for coking. The modern coke oven is a horizontal chamber type coke oven which mainly aims at producing metallurgical coke and can recover coking chemical products, and comprises an oven body and accessory equipment.
The tar binder is added into the coke oven coking coal, so that the bulk density and the coke strength of the coal can be improved, but the production cost is improved.
Disclosure of Invention
The present invention has been made in view of the above problems, and provides a method for improving coke strength of coking coal.
The invention adopts the following technical scheme:
according to the method for improving the coke strength of the coking coal, the waste oil is sprayed into the coking blending coal according to a certain proportion, so that the bulk density of the blending coal can be increased, and the coke strength is improved.
According to the method for improving the coke strength of the coking coal, the waste oil is the waste engine oil used by external equipment.
According to the method for improving the coke strength of the coking coal, the mass proportion of the oil injection on the coking coal is 0.3-1%.
Advantageous effects
According to the method for improving the coke strength of the coking coal, the waste oil added into the coal can improve the bulk density of the coal, so that the coke quality and the coke yield are improved.
Detailed Description
In order to make the objects and technical solutions of the embodiments of the present invention clearer, it is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
The method for improving the coke strength of the coking coal is used for spraying the waste oil product into the coking blending coal according to the mass ratio of 0.3-1 percent, so that the bulk density of the blending coal can be increased, and the coke strength and the yield are improved.
The method for improving the coke strength of the coking coal adopted by the invention passes the following tests:
firstly, bulk density test:
respectively weighing 50kg of blended coal, one not spraying oil, one spraying 0.3% of waste oil (waste engine oil of a coking plant) and one spraying 1% of waste oil, all using the same iron box to load, strickling the upper surface, measuring the height of coal in the iron box, and obtaining the following results:
bottom surface of iron boxThe product is: 45.2X 35.3 ═ 1595.56cm2。
When the oil injection rate is 1%, the bulk density is improved by about 1.08%; the oil injection is 0.3 percent, and the bulk density is improved by about 0.55 percent.
Second, coke quality test
A40 kg small coke oven test was carried out with the same blend coal, one without oil injection and one with 1% oil injection, and the test results were as follows:
according to the above experimental data, it can be obtained:
1. the bulk density of the coal can be improved by about 1 percent by spraying 1 percent of waste oil into the blended coal, thereby improving the coke yield by about 1 percent, the bulk density is improved by about 0.55 percent when 0.3 percent is sprayed, thereby improving the yield by 0.55 percent,
2. through spouting in the coal blending with waste oil, can improve coke quality, spout when adding 1%, M40 improves about: 0.6%, M10 improved by about 0.7%. The problem of environmental protection is solved. At present, waste oil cannot be treated, is dangerous waste and is added into coal. Not only solves the problem of hazardous waste treatment, but also improves the yield and quality of coke.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A method for improving coke strength of coking coal, which is characterized by comprising the following steps: the waste oil is sprayed into the coking blending coal according to a certain proportion, so that the bulk density of the blending coal is increased.
2. The method for improving coke strength of coking coal according to claim 1, characterized in that: the waste oil is used oil used by external equipment.
3. The method for improving coke strength of coking coal according to claim 1, characterized in that: the mass ratio of oil injection on the coking coal is 0.3-1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911037382.4A CN110760326A (en) | 2019-10-29 | 2019-10-29 | Method for improving coke strength of coking coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911037382.4A CN110760326A (en) | 2019-10-29 | 2019-10-29 | Method for improving coke strength of coking coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110760326A true CN110760326A (en) | 2020-02-07 |
Family
ID=69334834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911037382.4A Pending CN110760326A (en) | 2019-10-29 | 2019-10-29 | Method for improving coke strength of coking coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110760326A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024022A (en) * | 1974-12-05 | 1977-05-17 | Bergwerksverband Gmbh | Method of inhibiting dust formation when feeding coal into coking chambers |
| CN102021007A (en) * | 2010-12-07 | 2011-04-20 | 江苏沙钢集团有限公司 | Low-cost coking coal blending system |
| CN103537152A (en) * | 2013-11-13 | 2014-01-29 | 镇江东亚碳素焦化有限公司 | Dust removal method for calcined coke |
| CN109650104A (en) * | 2017-10-11 | 2019-04-19 | 沈阳鑫颖超科技有限公司 | A kind of dust removal method when coke loads and unloads |
-
2019
- 2019-10-29 CN CN201911037382.4A patent/CN110760326A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024022A (en) * | 1974-12-05 | 1977-05-17 | Bergwerksverband Gmbh | Method of inhibiting dust formation when feeding coal into coking chambers |
| CN102021007A (en) * | 2010-12-07 | 2011-04-20 | 江苏沙钢集团有限公司 | Low-cost coking coal blending system |
| CN103537152A (en) * | 2013-11-13 | 2014-01-29 | 镇江东亚碳素焦化有限公司 | Dust removal method for calcined coke |
| CN109650104A (en) * | 2017-10-11 | 2019-04-19 | 沈阳鑫颖超科技有限公司 | A kind of dust removal method when coke loads and unloads |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200207 |
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| RJ01 | Rejection of invention patent application after publication |