CN1316493A - Environment protection type coal-saving additive and its preparing process and application - Google Patents
Environment protection type coal-saving additive and its preparing process and application Download PDFInfo
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- CN1316493A CN1316493A CN 01117486 CN01117486A CN1316493A CN 1316493 A CN1316493 A CN 1316493A CN 01117486 CN01117486 CN 01117486 CN 01117486 A CN01117486 A CN 01117486A CN 1316493 A CN1316493 A CN 1316493A
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Abstract
A coal-saving environment protection type additive is prepared from shale, calcium lime, laterite and alkali-metal chlorate through crushing, ball grinding, sieving, mixing, homogenizing and proportioning control. It is applied by mixing it with powdered coal. Its advantages include simple process, widely available raw materials, high safety, low cost, sulfur fixation and low NOx content.
Description
The present invention relates to a kind ofly solid fuel be carried out additive and the manufacturing process that chemical process is handled, especially a kind of solid sulphur, fall nitrogen and the environmental-protection additive of economizing on coal and its production and application for improving burning.
At present, all there are the problem of environmental pollution of exhaust gas discharged severe overweight in existing coal firing boiler and other coal-burning installation great majority.Its major cause is to contain objectionable impuritiess such as many sulfide in its employed burning in coal, they burning the time be oxidized to gaseous oxidation thing or fine particle with exhaust gas emission in atmosphere, particularly sulfur-bearing, oxynitride cause severe contamination to atmospheric environment.For a long time, people have adopted several different methods to attempt to solve this difficult problem, but produce little effect.Chinese patent CN1127776A discloses a kind of " sulfur-immobilizing coal-saving additive ", its main technique feature is to be solid sulphur composition with light calcium carbonate or calcium oxide, be equipped with sodium-chlor raising agent, potassium permanganate or SODIUMNITRATE oxygenant, yellow soda ash assistant agent and a spot of ferric oxide catalyzer and silicon-dioxide or strontium oxide or borax stablizer and form described sulfur-immobilizing coal-saving additive, add it to burning according to a certain percentage with in the coal, be used for improving coal-fired effect and sulfur-containing oxide is retained among the cinder.Though this sulfur-immobilizing coal-saving additive can play certain sulfur-immobilizing coal-saving effect, it is mixed with, and branch is many and complicated, and security is relatively poor, and production cost is also higher.The more important thing is that owing to added SODIUMNITRATE make the burning that adds this additive with containing more nitride in the coal, the quantity of nitrogen-containing oxide also will increase thereupon in the burning back institute discharging waste gas, increase the weight of the pollution level to environment again as oxygenant.
Purpose of the present invention just is to overcome above-mentioned weak point of the prior art, it is extensive to propose a kind of raw material sources, technical process and preparation composition are simple, security is better, production cost is more cheap, be easy to manufacture and use, and fixedly sulphur, reduce oxynitride and save excellent especially environment protection type coal-saving additive of net effects such as fire coal and preparation method thereof.
Purpose of the present invention can reach by implementing following technical proposal: product of the present invention is main component with shale, is equipped with unslaked lime, red soil and chloric acid an alkali metal salt, prepares by following weight part:
Shale 60-80 part
Unslaked lime 15-20 part
Red soil 3-10 part
Chloric acid an alkali metal salt 2-5 part
Chloric acid an alkali metal salt in the mentioned component is Potcrate or sodium chlorate preferably.
The preparation method of product of the present invention will carry out fragmentation, ball milling by shale, unslaked lime and the red soil of said ratio weighing earlier, and by 80-100 purpose screening plant, add again that chloric acid an alkali metal salt by the proportioning weighing mixes, homogenizing, detect, adjust and control the weight percent content of following main compound then:
Silicon-dioxide 55-65%
Calcium oxide 15-20%
Potassium oxide 5-8%
Barium oxide 2-4%
Vanadium Pentoxide in FLAKES 3-6%
After chloric acid an alkali metal salt 2-4% reaches above-mentioned controlling index, with ganging of products, packing, warehouse-in.
The application method of product of the present invention is to add the ratio uniform mixing of 2-5 weight part in pulverous fire coal in per 100 weight parts fire coal with the formulated environment protection type coal-saving additive of above-mentioned technology.
Below in conjunction with embodiment the present invention is done to describe in further detail.
Embodiment 1: get shale, unslaked lime, red soil and Potcrate and be raw material and by following weight ratio Weighing: 65 kilograms in shale, 15 kilograms of unslaked limes, 3 kilograms of red soils, 2 kilograms in Potcrate.To carry out fragmentation, ball milling by shale, unslaked lime and the red soil of said ratio weighing earlier, and by 80 purpose screening plants; Add again that Potcrate by the proportioning weighing mixes, homogenizing, detect, adjust and control the weight percent content of following main compound then: silicon-dioxide 55%, potassium oxide 6%, calcium oxide 17%, barium oxide 2%, Vanadium Pentoxide in FLAKES 3%, Potcrate 2%; After reaching above-mentioned controlling index, product is through metering, packing, warehouse-in.With with the formulated environment protection type coal-saving additive of above-mentioned technology in the coal-fired ratio uniform mixing that adds 2 weight parts of per 100 weight parts in pulverous low-sulfur fire coal, use as the fuel of Industrial Boiler.
Embodiment 2: get shale, unslaked lime, red soil and sodium chlorate and be raw material and by following weight ratio Weighing: 75 kilograms in shale, 20 kilograms of unslaked limes, 9 kilograms of red soils, 5 kilograms of sodium chlorate.To carry out fragmentation, ball milling by shale, unslaked lime and the red soil of said ratio weighing earlier, and by 100 purpose screening plants; Add again by the sodium chlorate of proportioning weighing mix, homogenizing, detect, adjust and control the weight percent content of following main compound then: silicon-dioxide 65%, potassium oxide 8%, calcium oxide 18%, barium oxide 4%, Vanadium Pentoxide in FLAKES 5%, sodium chlorate 4.5%; After reaching above-mentioned controlling index, product is through metering, packing, warehouse-in.With with the formulated environment protection type coal-saving additive of above-mentioned technology in the coal-fired ratio uniform mixing that adds 5 weight parts of per 100 weight parts in pulverous high-sulfur fire coal, use as the fuel of Industrial Boiler.
Embodiment 3: get shale, unslaked lime, red soil and Potcrate and be raw material and by following weight ratio Weighing: 70 kilograms in shale, 18 kilograms of unslaked limes, 6 kilograms of red soils, 4 kilograms in Potcrate.To carry out fragmentation, ball milling by shale, unslaked lime and the red soil of said ratio weighing earlier, and by 100 purpose screening plants; Add again that Potcrate by the proportioning weighing mixes, homogenizing, detect, adjust and control the weight percent content of following main compound then: silicon-dioxide 60%, potassium oxide 7%, calcium oxide 18%, barium oxide 3%, Vanadium Pentoxide in FLAKES 4%, Potcrate 4%; After reaching above-mentioned controlling index, product is through metering, packing, warehouse-in.With with the formulated environment protection type coal-saving additive of above-mentioned technology in the coal-fired ratio uniform mixing that adds 3 weight parts of per 100 weight parts in pulverous conventional fire coal, use as the fuel of Industrial Boiler.
Product of the present invention by contrast test and through Jiading District in Shanghai City environmental monitoring station according to GB/T16157-1996, GB16297-1996 standard detect, and its result is: sulfur-fixing rate 45-65%, Amount of nitrogen oxides reduces 15-25%, coal saving rate 15-20%. Therefore, the present invention and prior art phase Relatively, it is extensive to have raw material sources, and technological process and preparation composition are simple, and security is better, production cost More cheap, be easy to manufacture and use, and fixedly sulphur, reduction nitrogen oxide and saving fire coal etc. are comprehensive Effect is the characteristics such as excellence especially.
Claims (5)
1, a kind of environment protection type coal-saving additive, its parts by weight of raw materials proportioning is:
Shale 60-80 part
Unslaked lime 15-20 part
Red soil 3-10 part
Chloric acid an alkali metal salt 2-5 part
2,, it is characterized in that above-mentioned chloric acid an alkali metal salt is Potcrate or sodium chlorate according to the described environment protection type coal-saving additive of claim 1.
3, the preparation method of the described environment protection type coal-saving additive of claim 1, its processing step is: will carry out fragmentation, ball milling by shale, unslaked lime and the red soil of said ratio weighing, and by 80-100 purpose screening plant, add again that chloric acid an alkali metal salt by the proportioning weighing mixes, homogenizing, detect, adjust and control the weight percent content of following main compound then:
Silicon-dioxide 55-65%
Calcium oxide 15-20%
Potassium oxide 5-8%
Barium oxide 2-4%
Vanadium Pentoxide in FLAKES 3-6%
Chloric acid an alkali metal salt 2-4%
After reaching above-mentioned controlling index, with ganging of products, packing, warehouse-in.
4,, it is characterized in that the weight percent content optimum control value of main compound is according to the preparation method of the described environment protection type coal-saving additive of claim 3:
Silicon-dioxide 60%
Calcium oxide 18%
Potassium oxide 7%
Barium oxide 3%
Vanadium Pentoxide in FLAKES 4%
Chloric acid an alkali metal salt 4%
5, the application of the described environment protection type coal-saving additive of claim 1 is characterized in that the environment protection type coal-saving additive that above-mentioned technology is formulated adds the ratio uniform mixing of 2-5 weight part in pulverous fire coal in per 100 weight parts fire coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011174862A CN1313579C (en) | 2001-04-27 | 2001-04-27 | Environment protection type coal-saving additive and its preparing process and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011174862A CN1313579C (en) | 2001-04-27 | 2001-04-27 | Environment protection type coal-saving additive and its preparing process and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1316493A true CN1316493A (en) | 2001-10-10 |
| CN1313579C CN1313579C (en) | 2007-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011174862A Expired - Fee Related CN1313579C (en) | 2001-04-27 | 2001-04-27 | Environment protection type coal-saving additive and its preparing process and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1313579C (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060675A (en) * | 1990-10-16 | 1992-04-29 | 史君洁 | Design method of waste slag coal-saving additive |
| CN1064994C (en) * | 1995-01-28 | 2001-04-25 | 西安正阳环保能源有限公司 | Sulfur-immobilizing coal-saving additive |
| CN1116392C (en) * | 1998-11-20 | 2003-07-30 | 烟台市能源监测中心 | Raw coal treating agent |
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2001
- 2001-04-27 CN CNB011174862A patent/CN1313579C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1313579C (en) | 2007-05-02 |
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