CN1302090C - Method for producing coke in high quality type by using carbon technique - Google Patents
Method for producing coke in high quality type by using carbon technique Download PDFInfo
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- CN1302090C CN1302090C CNB2005100123430A CN200510012343A CN1302090C CN 1302090 C CN1302090 C CN 1302090C CN B2005100123430 A CNB2005100123430 A CN B2005100123430A CN 200510012343 A CN200510012343 A CN 200510012343A CN 1302090 C CN1302090 C CN 1302090C
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Abstract
The present invention relates to a method for preparing formed coke which has high quality with a carbon technology, and belongs to a method for preparing formed coke which has high quality, and the method utilizes the carbon technology and adopts non-stickiness coal and lean coal. The method mainly solves the technical problems of serious waste of resources, high preparation cost of coke and serious environmental pollution existing in the existing method for preparing coke. The method for preparing formed coke which has high quality with a carbon technology comprises the following steps: step 1, raw coal is washed and selected; step 2, washed coal is dried; step 3, mixing operation is carried out, 30 to 50% of non-stickiness washed coal and 35 to 55% of lean coal washed coal according to the weight percentage are mixed in a dry mixing mode for 10 to 15 minutes, 10 to 20% of modified binding agent according to the weight percentage is added, mixed material is continuously stirred for 10 to 15 minutes, the temperature of the mixed material is from 100 to 130 DEG C, and the material is taken out; step 4, the material is shaped; step 5, cooling operation is carried out; and step 6, sintering operation is carried out, and formed coke is prepared.
Description
Technical field:
The present invention relates to a kind of method of utilizing carbon technique to produce coke in high quality type, it belongs to a kind of and utilizes carbon technique and adopt the non-sticky coal and the method for lean coal production coke in high quality type.
Background technology:
Produce high-quality coke at present, need expend a large amount of high-quality coking coal and rich coal, and the coking coal reserves of China are reducing day by day, bringing very big difficulty for the production of coke enterprise.In addition, the price comparison height of coking coal and rich coal also makes the production cost of coke improve.The coke oven contaminate environment of producing coke now is serious, has brought harm for local people's life.Exist shortcomings such as serious waste of resources, coke production cost height and contaminate environment are serious so produce the method for coke now.
Summary of the invention:
The carbon technique that utilizes that the method that the objective of the invention is to solve present production coke exists the serious technological difficulties of serious waste of resources, coke production cost height and contaminate environment and provides a kind of and economizes on resources, the coke production cost is low and reduce environmental pollution is produced the method for coke in high quality type.
For realizing above-mentioned task, the technical solution used in the present invention is: this utilizes carbon technique to produce the method for coke in high quality type, and it is made up of the following step:
1) washing flotating raw coal: at first being the cleaned coal of ash content＜5%, sulphur content＜0.5%, volatile matter 35～40% with the washing of non-sticky coal, is the cleaned coal of ash content＜7.5%, sulphur content＜0.6%, volatile matter 15～20% with the lean coal washing, and the granularity of cleaned coal is below the 4m;
2) oven dry cleaned coal: the moisture content of washing cleaned coal is dried to below 1.5%;
3) mix: at first be that 30～50% non-sticky cleaned coal and weight percent are that 35～55% lean coal cleaned coal is done and mixed 10～15 minutes weight percent, adding weight percent then is 10～20% benzene insoluble＞40%, the hard pitch or the medium temperature coal pitch of coking value＞45%, continue to stir discharging when the temperature of compound reaches 100～130 ℃ 10～15 minutes;
4) moulding: with the vibratory compaction method compound being shaped to proportion is 1.1～1.35g/cm
3Blank;
5) cooling: water was with blank cooling 3～4 hours;
6) sintering: the refrigerative blank is put into carbon baking furnace, and when sintering temperature was 1000 ℃ ± 50 ℃, sintering 240 hours was come out of the stove when then furnace temperature being cooled to 150 ℃ ± 30 ℃ gradually and is made formed coke.
Because technique scheme of the present invention is the novel process that innovation is come out on the basis of existing carbon technique, therefore compares with background technology, have economize on resources, the coke production cost is low and reduce beneficial effect such as environmental pollution.After testing, the leading indicators such as ash content, sulphur content, volatile matter and intensity of the product produced of the present invention have all reached the standard of foundry coke.
Embodiment:
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1
The carbon technique that utilizes in the present embodiment is produced the method for coke in high quality type, and it is made up of the following step:
1) washing flotating raw coal: at first being the cleaned coal of ash content＜5%, sulphur content＜0.5%, volatile matter＜35% with the washing of non-sticky coal, is the cleaned coal of ash content＜7.5%, sulphur content＜0.6%, volatile matter＜15% with the lean coal washing, and the granularity of cleaned coal is below the 4mm;
2) oven dry cleaned coal: the moisture content of washing cleaned coal is dried to below 1.5%;
3) mix: at first be that 30% non-sticky cleaned coal and weight percent are that 55% lean coal cleaned coal is done and mixed 10 minutes weight percent, adding weight percent then is 15% benzene insoluble＞40%, the hard pitch of coking value＞45%, continue to stir discharging when the temperature of compound reaches 100 ℃ 10 minutes;
4) moulding: with the vibratory compaction method compound being shaped to proportion is 1.1～1.35g/cm
3Blank;
5) cooling: water was with blank cooling 3 hours;
6) sintering: the refrigerative blank is put into carbon baking furnace, when sintering temperature is 1000 ℃ ± 50 ℃, sintering 240 hours is come out of the stove when then furnace temperature being cooled to 150 ℃ ± 30 ℃ gradually and is made the coke in high quality type of ash content＜7.5%, sulphur content＜0.5%, volatile matter＜1.5%.
Embodiment 2
The carbon technique that utilizes in the present embodiment is produced the method for coke in high quality type, and it is made up of the following step:
1) washing flotating raw coal: at first being the cleaned coal of ash content＜5%, sulphur content＜0.5%, volatile matter＜36% with the washing of non-sticky coal, is the cleaned coal of ash content＜7.5%, sulphur content＜0.6%, volatile matter＜16% with the lean coal washing, and the granularity of cleaned coal is below the 4mm;
2) oven dry cleaned coal: the moisture content of washing cleaned coal is dried to below 1.5%;
3) mix: at first be that 40% non-sticky cleaned coal and weight percent are that 40% lean coal cleaned coal is done and mixed 12 minutes weight percent, adding weight percent then is 20% benzene insoluble＞40%, the hard pitch of coking value＞45%, continue to stir discharging when the temperature of compound reaches 110 ℃ 12 minutes;
4) moulding: with the vibratory compaction method compound being shaped to proportion is 1.1～1.35g/cm
3Blank;
5) cooling: water was with blank cooling 4 hours;
6) sintering: the refrigerative blank is put into carbon baking furnace, when sintering temperature is 1000 ℃ ± 50 ℃, sintering 240 hours is come out of the stove when then furnace temperature being cooled to 150 ℃ ± 30 ℃ gradually and is made the coke in high quality type of ash content＜7.5%, sulphur content＜0.5%, volatile matter＜1.5%.
Embodiment 3
The carbon technique that utilizes in the present embodiment is produced the method for coke in high quality type, and it is made up of the following step:
1) washing flotating raw coal: at first being the cleaned coal of ash content＜5%, sulphur content＜0.5%, volatile matter＜38% with the washing of non-sticky coal, is the cleaned coal of ash content＜7.5%, sulphur content＜0.6%, volatile matter＜18% with the lean coal washing, and the granularity of cleaned coal is below the 4m;
2) oven dry cleaned coal: the moisture content of washing cleaned coal is dried to below 1.5%;
3) mix: at first be that 50% non-sticky cleaned coal and weight percent are that 40% lean coal cleaned coal is done and mixed 13 minutes weight percent, adding weight percent then is 10% benzene insoluble＞40%, the hard pitch of coking value＞45%, continue to stir discharging when the temperature of compound reaches 120 ℃ 13 minutes;
4) moulding: with the vibratory compaction method compound being shaped to proportion is 1.1～1.35g/cm
3Blank;
5) cooling: water was with blank cooling 3.5 hours;
6) sintering: the refrigerative blank is put into carbon baking furnace, when sintering temperature is 1000 ℃ ± 50 ℃, sintering 240 hours is come out of the stove when then furnace temperature being cooled to 150 ℃ ± 30 ℃ gradually and is made the coke in high quality type of ash content＜7.5%, sulphur content＜0.5%, volatile matter＜1.5%.
Embodiment 4
The carbon technique that utilizes in the present embodiment is produced the method for coke in high quality type, and it is made up of the following step:
1) washing flotating raw coal: at first being the cleaned coal of ash content＜5%, sulphur content＜0.5%, volatile matter＜39% with the washing of non-sticky coal, is the cleaned coal of ash content＜7.5%, sulphur content＜0.6%, volatile matter＜19% with the lean coal washing, and the granularity of cleaned coal is below the 4mm;
2) oven dry cleaned coal: the moisture content of washing cleaned coal is dried to below 1.5%;
3) mix: at first be that 35% non-sticky cleaned coal and weight percent are that 45% lean coal cleaned coal is done and mixed 14 minutes weight percent, adding weight percent then is 20% benzene insoluble＞40%, the hard pitch of coking value＞45%, continue to stir discharging when the temperature of compound reaches 130 ℃ 14 minutes;
4) moulding: with the vibratory compaction method compound being shaped to proportion is 1.1～1.35g/cm
3Blank;
5) cooling: water was with blank cooling 3.8 hours;
6) sintering: the refrigerative blank is put into carbon baking furnace, when sintering temperature is 1000 ℃ ± 50 ℃, sintering 240 hours is come out of the stove when then furnace temperature being cooled to 150 ℃ ± 30 ℃ gradually and is made the coke in high quality type of ash content＜7.5%, sulphur content＜0.5%, volatile matter＜1.5%.
Embodiment 5
The carbon technique that utilizes in the present embodiment is produced the method for coke in high quality type, and it is made up of the following step:
1) washing flotating raw coal: at first being the cleaned coal of ash content＜5%, sulphur content＜0.5%, volatile matter＜40% with the washing of non-sticky coal, is the cleaned coal of ash content＜7.5%, sulphur content＜0.6%, volatile matter＜20% with the lean coal washing, and the granularity of cleaned coal is below the 4mm;
2) oven dry cleaned coal: the moisture content of washing cleaned coal is dried to below 1.5%;
3) mix: at first be that 48% non-sticky cleaned coal and weight percent are that 35% lean coal cleaned coal is done and mixed 15 minutes weight percent, adding weight percent then is 17% benzene insoluble＞40%, the hard pitch of coking value＞45%, continue to stir discharging when the temperature of compound reaches 120 ℃ 15 minutes;
4) moulding: with the vibratory compaction method compound being shaped to proportion is 1.1～1.35g/cm
3Blank;
5) cooling: water was with blank cooling 3～4 hours;
6) sintering: the refrigerative blank is put into carbon baking furnace, when sintering temperature is 1000 ℃ ± 50 ℃, sintering 240 hours is come out of the stove when then furnace temperature being cooled to 150 ℃ ± 30 ℃ gradually and is made the coke in high quality type of ash content＜7.5%, sulphur content＜0.5%, volatile matter＜1.5%.
The hard pitch of the benzene insoluble in the foregoing description＞40%, coking value＞45% can also replace with medium temperature coal pitch.
Claims (1)
1, a kind of method of utilizing carbon technique to produce formed coke, it is characterized in that: it is made up of the following step:
1) washing flotating raw coal: at first being the cleaned coal of ash content＜5%, sulphur content＜0.5%, volatile matter 35～40% with the washing of non-sticky coal, is the cleaned coal of ash content＜7.5%, sulphur content＜0.6%, volatile matter 15～20% with the lean coal washing, and the granularity of cleaned coal is below the 4mm;
2) oven dry cleaned coal: the moisture content of washing cleaned coal is dried to below 1.5%;
3) mix: at first be that 30～50% non-sticky cleaned coal and weight percent are that 35～55% lean coal cleaned coal is done and mixed 10～15 minutes weight percent, adding weight percent then is 10～20% benzene insoluble＞40%, the hard pitch or the medium temperature coal pitch of coking value＞45%, continue to stir discharging when the temperature of compound reaches 100～130 ℃ 10～15 minutes;
4) moulding: with the vibratory compaction method compound being shaped to proportion is 1.1～1.35g/cm
3Blank;
5) cooling: water was with blank cooling 3～4 hours;
6) sintering: the refrigerative blank is put into carbon baking furnace, and when sintering temperature was 1000 ℃ ± 50 ℃, sintering 240 hours was come out of the stove when then furnace temperature being cooled to 150 ℃ ± 30 ℃ gradually and is made formed coke.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100123430A CN1302090C (en) | 2005-01-29 | 2005-01-29 | Method for producing coke in high quality type by using carbon technique |
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| CNB2005100123430A CN1302090C (en) | 2005-01-29 | 2005-01-29 | Method for producing coke in high quality type by using carbon technique |
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| CN1660965A CN1660965A (en) | 2005-08-31 |
| CN1302090C true CN1302090C (en) | 2007-02-28 |
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| CN102533301B (en) * | 2012-01-13 | 2013-10-30 | 曹金贵 | Coking coal modifier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318618A (en) * | 2001-05-24 | 2001-10-24 | 秦军 | Coke briquette produced with lean coal and its production process |
| CN1560194A (en) * | 2004-03-10 | 2005-01-05 | 陈庆福 | Process of producing formed coke by traditional coke oven |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318618A (en) * | 2001-05-24 | 2001-10-24 | 秦军 | Coke briquette produced with lean coal and its production process |
| CN1560194A (en) * | 2004-03-10 | 2005-01-05 | 陈庆福 | Process of producing formed coke by traditional coke oven |
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