CN1109092C - Briquette additive for preparing active slag - Google Patents
Briquette additive for preparing active slag Download PDFInfo
- Publication number
- CN1109092C CN1109092C CN 00129841 CN00129841A CN1109092C CN 1109092 C CN1109092 C CN 1109092C CN 00129841 CN00129841 CN 00129841 CN 00129841 A CN00129841 A CN 00129841A CN 1109092 C CN1109092 C CN 1109092C
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- CN
- China
- Prior art keywords
- slag
- flyash
- diatomite
- iron powder
- mineral salt
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a briquette additive for preparing active slag, which is prepared by compounding diatomite, carbide slag, sludge, paper making waste liquid, iron powder, slag, flyash, a mineral salt, etc. at a proportion of 4 to 10:35 to 65:10 to 15:6 to 18:1 to 3:3 to 14:2 to 20:2 to 5. A control range of a calcium sulfur ratio is from 2.1:1 to 2.9:1. In a preparation method, firstly, the temperature of the diatomite, the carbide slag, the sludge, the paper making waste liquid, the iron powder, the slag, the flyash and the mineral salt is increased to 80 to 98 DEG C; then, counteracting at constant temperature for 3 to 4 hours; finally, naturally cooling. A weight ratio of the briquette additive to coal is 15 to 25:75 to 85. The compressive strength of prepared environment protection briquettes reaches more than 50kg.
Description
The present invention relates to a kind of for the combustion position that improves coal fuel with reduce a kind of additive that soot emissions are adopted, especially a kind of such shaped coal additive.
The additive that is used at present produce moulded coal is based on trade waste, have simultaneously solid sulphur, combustion-supporting, excite, the composite additive of multiple functions such as catalysis, bonding do not see open as yet.The Chinese patent that disclosed application number is 91102123.X " industrial shaping coal of a kind of solid sulphur, waterproof ", adopted compound binding agent, intensity, waterproof, the sulfur fixation performance of moulded coal are improved, but the soot emissions during the moulded coal burning fail to reduce, and the slag that gives off can not well be utilized because of not having activity; And for example disclosed application number is 98118798.6 Chinese patent " a kind of solid sulfur clean shaping coal for industry ", adopts simple sulphur-fixing agent, has only considered the captured sulfur result of moulded coal, but sulphur-fixing agent bonding, catalysis, excitating performance are relatively poor; Disclosed application number is that to adopt potassium, the oxyhydroxide of sodium, muriate, nitrate be sulphur-fixing agent for 97113356.5 Chinese patent " a kind of preparation method of sulfur-fixing waterproof boiler briquette ", the nitrate of carbonate, barium, strontium, ferric oxide are ignition dope, additive is complicated, cost is higher, and slag is lower because of activity, can not use as gelling material; " inorganic briquette adhesive and preparation method thereof " of application number 99124403.6 for another example, its binding agent is based on sodium silicate, be equipped with the composite modifier that potassium bichromate, potassium chromium sulfate, potassium aluminium sulfate, ferrous sulfate, sodium sulfate and water are formed, though the over-all properties of moulded coal is better, the cost of binding agent is higher and slag is active lower.
The objective of the invention is to propose a kind of is the shaped coal additive that main component can produce active slag with the trade waste.
The object of the present invention is achieved like this:
1. compound formulated by diatomite, carbide slag, mud, papermaking wastewater, iron powder, slag, flyash, mineral salt etc.;
2. compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=4～10: 35～65: 10～15: 6～18: 1～3: 3～14: 2～20: 2～5;
3. the calcium sulfur ratio span of control is 2.1: 1～2.9: 1;
4. compound method is: diatomite, carbide slag, mud, papermaking wastewater, iron powder, slag, flyash, mineral salt at first are warmed up to 80～98 ℃, and constant temperature digestion is 3～4 hours then, and naturally cooling forms again.
The present invention is further described by the following examples:
Embodiment 1: compound formulated by diatomite, carbide slag, mud, papermaking wastewater, iron powder, slag, flyash, mineral salt etc.; Compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=4～10: 35～65: 10～15: 6～18: 1～3: 3～14: 2～20: 2～5; The calcium sulfur ratio span of control is 2.1: 1～2.9: 1; Compound method is: diatomite, carbide slag, mud, papermaking wastewater, iron powder, slag, flyash, mineral salt at first are warmed up to 80～98 ℃, and constant temperature digestion is 3～4 hours then, and naturally cooling forms again.
Embodiment 2: compound formulated by diatomite, carbide slag, mud, papermaking wastewater, iron powder, slag, flyash, mineral salt etc.; Compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=6: 40: 10: 10: 2: 14: 20: 2; Additive amount 25%, the efficient 35% of economizing on coal, briquette strength 51.07kg/, moulded coal calorific value 17000kJ/kg, SO
2Gas reduces 75.2%, and flue dust reduces 85%, levigate slag intensity 12.4Mpa.
Embodiment 3: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=8: 35: 15: 12: 1: 10: 16: 3; Additive amount 15%, the efficient 15% of economizing on coal, briquette strength 53.4kg/, moulded coal calorific value 21750kJ/kg, SO
2Gas reduces 76.4%, and flue dust reduces 88%, levigate slag intensity 13.3Mpa.
Embodiment 4: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=10: 45: 10: 18: 3: 5: 5: 5; Additive amount 18%, the efficient 23% of economizing on coal, briquette strength 57.8kg/, moulded coal calorific value 22000kJ/kg, SO
2Gas reduces 79.4%, and flue dust reduces 89%, levigate slag intensity 18.7Mpa.
Embodiment 5: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=8: 50: 10: 15: 2: 7: 6: 2; Additive amount 20%, the efficient 31% of economizing on coal, briquette strength 51.8kg/, moulded coal calorific value 24170kJ/kg, SO
2Gas reduces 81.3%, and flue dust reduces 85%, levigate slag intensity 20.0Mpa.
Embodiment 6: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=8: 55: 10: 15: 2: 4: 4: 2; Additive amount 23%, the efficient 28% of economizing on coal, briquette strength 54.4kg/, moulded coal calorific value 25200kJ/kg, SO
2Gas reduces 83.5%, and flue dust reduces 90%, levigate slag intensity 19.2Mpa.
Embodiment 7: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=5: 60: 15: 6: 2: 3: 5: 4; Additive amount 23%, the efficient 31.4% of economizing on coal, briquette strength 52.1kg/, moulded coal calorific value 26710kJ/kg, SO
2Gas reduces 85.0%, and flue dust reduces 92%, levigate slag intensity 18.9Mpa.
Embodiment 8: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=4: 65: 10: 10: 2: 3: 2: 2; Additive amount 17%, the efficient 29.6% of economizing on coal, briquette strength 52.3kg/, moulded coal calorific value 28000kJ/kg, SO
2Gas reduces 79.6%, and flue dust reduces 95%, levigate slag intensity 18.9Mpa.
A kind of shaped coal additive that produces active slag of the present invention, the part by weight of additive and coal is 15～25: 75～85.The ultimate compression strength of the environment-friendly coal that makes reaches more than 50kg/.Owing to adopted sulfur solidifying technique, making moulded coal sulphur-fixing agent and oxysulfide gas in combustion processes carry out chemical reaction generates solid and discharges as slag, not only reduce coal-fired theoretical air requirement, and significantly reduce soot emissions, especially suppress SO in the fired coal combustion process
2The moulded coal that the formation of gas, present technique make does not have particular requirement to boiler, and additive is with low cost, and it is convenient to implement, and it is fairly obvious to subtract dirty energy-saving effect: the SO that implements postindustrial boiler
2Gas emissions descends 70～85%, and smoke discharge amount descends 80～95%; Simultaneously owing to adopted the purification of combustion technology, make fire coal have higher porosity thermal distortion characteristic and physical strength, combustion air can be evenly distributed in whole combustion processes and be beneficial to oxygen to carbon surface diffusion and infiltration in Industrial Boiler, improve coal-fired combustionvelocity, accelerate combustion process, thereby make the unburned carbon loss of moulded coal be reduced to 4-6%, the boiler furnace temperature of combustion is improved significantly, the moulded coal rate of combustion reaches 90～99%, coal-fired consumption descends 15～35%, and thermal value reaches 17000～28000kJ/kg; In addition owing to adopted the activity excitation technology, make slag obtain modification and change harmless, high reactivity into by original harmful, inertia, make the slag intensity after levigate reach 12～20Mpa, thereby make slag can directly obtain the utilization of higher industrial added value as the gelling material of producing building product.
Claims (8)
1, a kind of shaped coal additive that produces active slag, it is characterized in that: compound formulated by diatomite, carbide slag, mud, papermaking wastewater, iron powder, slag, flyash, mineral salt, compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=4～10: 35～65: 10～15: 6～18: 1～3: 3～14: 2～20: 2～5.
2, a kind of shaped coal additive that produces active slag as claimed in claim 1, it is characterized in that: compound formulated by diatomite, carbide slag, mud, papermaking wastewater, iron powder, slag, flyash, mineral salt, compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=6: 40: 10: 10: 2: 14: 20: 2.
3, a kind of shaped coal additive that produces active slag as claimed in claim 1, it is characterized in that: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=8: 35: 15: 12: 1: 10: 16: 3.
4, a kind of shaped coal additive that produces active slag as claimed in claim 1, it is characterized in that: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=10: 45: 10: 18: 3: 5: 5: 5.
5, a kind of shaped coal additive that produces active slag as claimed in claim 1, it is characterized in that: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=8: 50: 10: 15: 2: 7: 6: 2.
6, a kind of shaped coal additive that produces active slag as claimed in claim 1, it is characterized in that: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=8: 55: 10: 15: 2: 4: 4: 2.
7, a kind of shaped coal additive that produces active slag as claimed in claim 1, it is characterized in that: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=5: 60: 15: 6: 2: 3: 5: 4.
8, a kind of shaped coal additive that produces active slag as claimed in claim 1, it is characterized in that: compound proportion is: diatomite: carbide slag: mud: papermaking wastewater: iron powder: slag: flyash: mineral salt=4: 65: 10: 10: 2: 3: 2: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00129841 CN1109092C (en) | 2000-10-30 | 2000-10-30 | Briquette additive for preparing active slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00129841 CN1109092C (en) | 2000-10-30 | 2000-10-30 | Briquette additive for preparing active slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1351133A CN1351133A (en) | 2002-05-29 |
| CN1109092C true CN1109092C (en) | 2003-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00129841 Expired - Fee Related CN1109092C (en) | 2000-10-30 | 2000-10-30 | Briquette additive for preparing active slag |
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| CN (1) | CN1109092C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357124A (en) * | 2014-10-15 | 2015-02-18 | 宁夏宝塔石化科技实业发展有限公司 | Environment-friendly fire coal combustion improver |
| CN104830396A (en) * | 2015-05-12 | 2015-08-12 | 天津神侬环保科技有限公司 | Preparation method of sludge clean fuel |
| CN107619694B (en) * | 2017-11-02 | 2023-12-08 | 山东能源集团有限公司 | Digestion system and method for preparing ultra-clean coal |
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- 2000-10-30 CN CN 00129841 patent/CN1109092C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1351133A (en) | 2002-05-29 |
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Granted publication date: 20030521 Termination date: 20111030 |