CN102827660A - Method for fabricating smokeless lump coal by utilizing upgraded lignite - Google Patents
Method for fabricating smokeless lump coal by utilizing upgraded lignite Download PDFInfo
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- CN102827660A CN102827660A CN2012103436795A CN201210343679A CN102827660A CN 102827660 A CN102827660 A CN 102827660A CN 2012103436795 A CN2012103436795 A CN 2012103436795A CN 201210343679 A CN201210343679 A CN 201210343679A CN 102827660 A CN102827660 A CN 102827660A
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Abstract
The invention discloses a method for fabricating smokeless lump coal by utilizing upgraded lignite. According to the method, the smokeless lump coal is fabricated by taking semicoke as main raw materials, one of gas coal, fat coal, coking coal and the like as auxiliary materials, and carrying out artificially synthesis on a binding agent, wherein the semicoke is obtained by extracting and separating the most volatiles from lignite, the binding agent comprises starch glue and coal tar the ratio of which is 7:3. The artificially synthesized smokeless lump coal is comparable to natural smokeless lump coal, can be fired as smokeless lump coal, and also can be used as reactant for producing calcium carbide, thus not only solving the problems the semicoke obtained by extracting and separating the most volatiles from lignite has environment pollution, but also being capable of changing wastes into valuables, solving the problem of reasonably and fully utilizing the resources, and having wide prospects. The product obtained by utilizing the method can substitute the formed coke and relieve the tension trend of the smokeless lump coal.
Description
Technical field
The present invention relates to coal improvement field, be specially a kind of method of utilizing the brown coal after the upgrading to make anthracite block coal.
Background technology
Brown coal moisture is big, and volatile matter is high, and fixed carbon is low, thermal value is little, produce the flying dust airborne dust when storing stacking spontaneous combustion, transportation, industry uses the insufficient coal of thermo-efficiency.But volatile matter is to extract the splendid raw materials of Chemicals such as making methyl alcohol, terepthaloyl moietie, toluene, monoether in the brown coal.Brown coal are called semicoke after most of volatile is separated out in extraction, the fixed carbon about 60% of semicoke, and between the volatile matter 14%-18%, original shape is that powder arrives the bulk that still continues differentiation, and the transportation airborne dust is serious, and it is inflammable again to deposit airborne dust.Therefore become a big factor that influences environmental protection.
How can be good at utilizing brown coal to extract semicoke behind the volatile matter and make raw material and make anthracite block coal, has been a good problem to study.
Summary of the invention
In order to overcome above-mentioned the problems of the prior art, it is simple to the invention provides a kind of preparation technology, with low cost, and can be good at utilizing brown coal to extract separating out semicoke after the most of volatile to make the method for anthracite block coal for main raw material.
The objective of the invention is to realize like this:
The method of utilizing the brown coal after the upgrading to make anthracite block coal is characterized in that its concrete making method step is following:
A, raw material are prepared:
Major ingredient: the semicoke after the most of volatile is separated out in the brown coal extraction;
Auxiliary material: wherein any one of bottle coal, rich coal, coking coal;
Caking agent: amylan and coal tar form according to the 7:3 proportioning;
B, with the major ingredient described in a step with ball mill levigate >=30 orders, auxiliary material with ball mill levigate >=50 orders;
C, with levigated raw material in b step and auxiliary material according to weight percent meter, get raw material 55%-85%; Get auxiliary material 45%-15%, it is even to add stirrer for mixing simultaneously, and it is even to add the caking agent 8%-12% thorough mixing of a in the step again, gets into moulding in the shaper, rule or the non-regular shape moulded coal finished product of forming diameter 2cm-20cm;
D, the moulded coal finished product that makes in c step packed in 600 ℃ of-1100 ℃ of gas retorts, the kiln came out of the stove in destructive distillation 2-4 hour, more than the ultimate compression strength 1500N, volatile matter 1%-8%, fixed carbon are the anthracite block coal goods more than 75%.
Positive beneficial effect:The anthracite block coal and the natural anthracite block coal of the synthetic that the present invention adopts match in excellence or beauty; Can use by anthracite block coal, also can be used as and produce the calcium carbide reagent, not only solve brown coal and extracted the problem of separating out the semicoke environmental pollution after the most of volatile; The thing of can turning waste into wealth simultaneously; The problem that the resource that solves rationally makes full use of, prospect is very wide, and the product that the present invention makes can substitute the gentle nervous trend of anthracite block coal of separating of formed coke.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described:
The method of utilizing the brown coal after the upgrading to make anthracite block coal is characterized in that its concrete making method step is following:
A, raw material are prepared:
Major ingredient: the semicoke after the most of volatile is separated out in the brown coal extraction;
Auxiliary material: wherein any one of bottle coal, rich coal, coking coal;
Caking agent: amylan and coal tar form according to the 7:3 proportioning;
B, with the major ingredient described in a step with ball mill levigate >=30 orders, auxiliary material with ball mill levigate >=50 orders;
C, with levigated raw material in b step and auxiliary material according to weight percent meter, get raw material 55%-85%; Get auxiliary material 45%-15%, it is even to add stirrer for mixing simultaneously, and it is even to add the caking agent 8%-12% thorough mixing of a in the step again, gets into moulding in the shaper, rule or the non-regular shape moulded coal finished product of forming diameter 2cm-20cm;
D, the moulded coal finished product that makes in c step packed in 600 ℃ of-1100 ℃ of gas retorts, the kiln came out of the stove in destructive distillation 2-4 hour, more than the ultimate compression strength 1500N, volatile matter 1%-8%, fixed carbon are the anthracite block coal goods more than 75%.
Embodiment 1
The method of utilizing the brown coal after the upgrading to make anthracite block coal is characterized in that its concrete making method step is following:
A, raw material are prepared:
Major ingredient: the semicoke after the most of volatile is separated out in the brown coal extraction;
Auxiliary material: bottle coal;
Caking agent: amylan and coal tar form according to the 7:3 proportioning;
B, with the major ingredient described in a step with ball mill levigate >=30 orders, auxiliary material with ball mill levigate >=50 orders;
C, with levigated raw material in b step and auxiliary material according to weight percent meter, get raw material 55%; Get auxiliary material 45%, it is even to add stirrer for mixing simultaneously, and it is even to add caking agent 8% thorough mixing of a in the step again, gets into moulding in the shaper, the regular oblate shape moulded coal finished product of forming diameter 2cm;
D, the moulded coal finished product that makes in the c step destructive distillation of packing in 600 ℃ of gas retorts, the kiln was come out of the stove in 3 hours, more than the ultimate compression strength 1600N, volatile matter 1%, fixed carbon are the anthracite block coal goods more than 75%.
Embodiment 2
The method of utilizing the brown coal after the upgrading to make anthracite block coal is characterized in that its concrete making method step is following:
A, raw material are prepared:
Major ingredient: the semicoke after the most of volatile is separated out in the brown coal extraction;
Auxiliary material: rich coal;
Caking agent: amylan and coal tar form according to the 7:3 proportioning;
B, with the major ingredient described in a step with ball mill levigate >=30 orders, auxiliary material with ball mill levigate >=50 orders;
C, with levigated raw material in b step and auxiliary material according to weight percent meter, get raw material 70%; Get auxiliary material 30%, it is even to add stirrer for mixing simultaneously, and it is even to add caking agent 10% thorough mixing of a in the step again, gets into moulding in the shaper, the regular pattern composite cylindrical shape moulded coal finished product of forming diameter 10cmx8cm;
D, the moulded coal finished product that makes in the c step destructive distillation of packing in 900 ℃ of gas retorts, the kiln was come out of the stove in 3 hours, more than the ultimate compression strength 1500N, volatile matter 5%, fixed carbon are the anthracite block coal goods more than 75%.
Embodiment 3
The method of utilizing the brown coal after the upgrading to make anthracite block coal is characterized in that its concrete making method step is following:
A, raw material are prepared:
Major ingredient: the semicoke after the most of volatile is separated out in the brown coal extraction;
Auxiliary material: coking coal;
Caking agent: amylan and coal tar form according to the 7:3 proportioning;
B, with the major ingredient described in a step with ball mill levigate >=30 orders, auxiliary material with ball mill levigate >=50 orders;
C, with levigated raw material in b step and auxiliary material according to weight percent meter, get raw material 85%; Get auxiliary material 15%, it is even to add stirrer for mixing simultaneously, and it is even to add caking agent 12% thorough mixing of a in the step again, gets into moulding in the shaper, the cylinder shape moulded coal finished product of the rule of forming diameter 20cmx20cm;
D, the moulded coal finished product that makes in the c step destructive distillation of packing in 1100 ℃ of gas retorts, the kiln was come out of the stove in 4 hours, more than the ultimate compression strength 1500N, volatile matter 1%-8%, fixed carbon are the anthracite block coal goods more than 75%.
The anthracite block coal and the natural anthracite block coal of the synthetic that the present invention adopts match in excellence or beauty; Can use by anthracite block coal, also can be used as and produce the calcium carbide reagent, not only solve brown coal and extracted the problem of separating out the semicoke environmental pollution after the most of volatile; The thing of can turning waste into wealth simultaneously; Solved the problem that resource reasonably makes full use of, prospect is very wide, and the product that the present invention makes can substitute the gentle nervous trend of anthracite block coal of separating of formed coke.
Above embodiment only is used to explain preferred implementation of the present invention; But the present invention is not limited to above-mentioned embodiment; In the ken that said field those of ordinary skill is possessed; Any modification of being done within spirit of the present invention and the principle, be equal to and substitute and improvement etc., it all should be encompassed within the technical scheme scope that the present invention asks for protection.
Claims (1)
1. the method for utilizing the brown coal after the upgrading to make anthracite block coal is characterized in that its concrete making method step is following:
A, raw material are prepared:
Major ingredient: the semicoke after the most of volatile is separated out in the brown coal extraction;
Auxiliary material: wherein any one of bottle coal, rich coal, coking coal;
Caking agent: amylan and coal tar form according to the 7:3 proportioning;
B, with the major ingredient described in a step with ball mill levigate >=30 orders, auxiliary material with ball mill levigate >=50 orders;
C, with levigated raw material in b step and auxiliary material according to weight percent meter, get raw material 55%-85%; Get auxiliary material 45%-15%, it is even to add stirrer for mixing simultaneously, and it is even to add the caking agent 8%-12% thorough mixing of a in the step again, gets into moulding in the shaper, the regular non-regular shape moulded coal finished product of forming diameter 2cm-20cm;
D, the moulded coal finished product that makes in c step packed in 600 ℃ of-1100 ℃ of gas retorts, the kiln came out of the stove in destructive distillation 2-4 hour, more than the ultimate compression strength 1500N, volatile matter 1%-8%, fixed carbon are the anthracite block coal goods more than 75%.
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| CN2012103436795A CN102827660A (en) | 2012-09-17 | 2012-09-17 | Method for fabricating smokeless lump coal by utilizing upgraded lignite |
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| CN2012103436795A CN102827660A (en) | 2012-09-17 | 2012-09-17 | Method for fabricating smokeless lump coal by utilizing upgraded lignite |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250418A (en) * | 2008-04-08 | 2008-08-27 | 环焦未来（北京）科技有限公司 | Gasification, dry distillation and carbonization integrated system carbonization |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250418A (en) * | 2008-04-08 | 2008-08-27 | 环焦未来（北京）科技有限公司 | Gasification, dry distillation and carbonization integrated system carbonization |
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Application publication date: 20121219 |