CN101619253A - Moulded coal fuel composition and preparation method thereof - Google Patents
Moulded coal fuel composition and preparation method thereof Download PDFInfo
- Publication number
- CN101619253A CN101619253A CN 200910304285 CN200910304285A CN101619253A CN 101619253 A CN101619253 A CN 101619253A CN 200910304285 CN200910304285 CN 200910304285 CN 200910304285 A CN200910304285 A CN 200910304285A CN 101619253 A CN101619253 A CN 101619253A
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- domestic sludge
- coal
- moulded coal
- moulded
- sludge
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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
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
Abstract
The invention discloses a moulded coal fuel composition which comprises the following components in percentage by mass: 30-84 percent of domestic sludge, 15-67.5 percent of powder coal and 1-2.5 percent of moulded coal bonding agent, wherein the mass sum of the components is 100 percent. The dewatering is carried out on the domestic sludge and then the domestic sludge is filled into a rotary cylindrical dryer; a high-temperature flue gas generated by the domestic sludge in the dryer is dried by introduced moulded coal; when the moisture of the domestic sludge accounts for 25-30 percent of the total mass of the domestic sludge, the domestic sludge is poured out of the dryer; the power coal and the moulded coal bonding agent are added in the domestic sludge poured from the dryer in proportion; and the mixture is conveyed into a stirrer to be mixed and evenly stirred, then conveyed into a moulded coal machine to be pressed and formed, and piled in a solar energy drying loft for drying. The invention can change treated domestic sludge into moulded coal fuel with high combustion heat value and can have simple preparation method and low cost.
Description
Technical field
The invention belongs to coal fuel technology field, be specifically related to a kind of moulded coal fuel composition, the invention still further relates to the preparation method of this moulded coal fuel composition.
Background technology
The organic content of general municipal sludge is between 60%-75%, so municipal sludge must be heat-treated the organic content in the attenuating mud before landfill.Owing to also contain large quantity of moisture behind the dehydrating municipal sludge, generally about 80%, utilize the combustiblecomponents in the mud must carry out drying and other treatment in advance, after mud is dried, its calorific value is 3000Kcal/Kg, is equivalent to the calorific value of brown coal, so the utilization of can burning once more.Domestic sludge viscosity is difficult for greatly being uniformly dispersed, and need carry out pre-treatment, reaches certain mummification degree and could add in proportion and burn, and now also domestic sludge is not changed into moulded coal as method civilian or Industrial Boiler fuel.
Summary of the invention
The purpose of this invention is to provide a kind of moulded coal fuel composition, its combustion heat value height.
Another object of the present invention provides the preparation method of above-mentioned moulded coal fuel composition, and technology is simple, and handled easily is with low cost.
The technical solution adopted in the present invention is, a kind of moulded coal fuel composition is composed of the following components by mass percentage: domestic sludge 30%-84%, and foam coal 15%-67.5%, coal briquette bond 1%-2.5%, the quality sum of each component is 100%.
Another technical scheme of the present invention is, the preparation method of above-mentioned moulded coal fuel composition specifically carries out according to following steps,
Step 1 is chosen the domestic sludge of 30%-84% by mass percentage respectively, the foam coal of 15%-67.5%, and the coal briquette bond of 1%-2.5%, the quality sum of each component is 100%;
Step 2, earlier domestic sludge is carried out processed, domestic sludge after the dehydration is packed in the turning circle cartridge type drying machine, with introducing the high-temperature flue gas that domestic sludge produces in the moulded coal bake drying machine, when accounting for life mud total mass 25%-30%, moisture content in the domestic sludge in drying machine, pours out, go out in the domestic sludge behind the machine and add foam coal, coal briquette bond respectively in proportion, sending into stirrer for mixing stirs, send into compression moulding in the molding coal machine again, be deposited in solar energy drying shed middle mummification.
The invention has the beneficial effects as follows that utilize domestic sludge can be transformed into the high moulded coal fuel of combustion heat value after handling, its preparation method is simple, and is required with low cost.
Embodiment
The present invention is described in detail below by embodiment.
Moulded coal fuel composition of the present invention, composed of the following components by mass percentage:
Domestic sludge 30%-84%, foam coal 15%-67.5%, coal briquette bond 1%-2.5%, the quality sum of each component is 100%.
Wherein the domestic sludge main component is an organism, and every kilogram of calorific value is the 2500-3000 kilocalorie; The foam coal be meant calorific value be 4500-5000 kilocalorie, sulfur-bearing quality less than 2%, the fixed carbon quality accounts for the bituminous coal of total mass 80%-95%; " the high-effect moulding coal tackiness agent " that coal briquette bond adopts Lingshi County, Shanxi vast stretch of wooded country humic acids factory to produce, the moulded coal 30-50 ton of producing per ton.
In moulded coal fuel element of the present invention, the ratio that accounts for because of coal briquette bond is very little, when moulded coal burns, and the height of moulded coal calorific value, the thermal value of major decision foam coal and blending amount.When thermal value one timing of domestic sludge, the thermal value of foam coal is high more, and the blending amount is big more, and the calorific value of this moulded coal is high more, otherwise more little.Guaranteeing that the moulded coal of making reaches on the basis of cold strength and thermostability, strengthen the consumption of domestic sludge as far as possible, dispose domestic sludge to reach mass-producing.The consumption of coal briquette bond increases with foam coal consumption.
The preparation method of moulded coal fuel composition of the present invention, specifically carry out according to following steps:
Step 1 is chosen the domestic sludge of 30%-84% by mass percentage respectively, the foam coal of 15%-67.5%, and the coal briquette bond of 1%-2.5%, the quality sum of each component is 100%;
Step 2, earlier domestic sludge is carried out processed, domestic sludge after the dehydration is packed in the turning circle cartridge type drying machine, with introducing the high-temperature flue gas that domestic sludge produces in the moulded coal bake drying machine, when moisture content in the domestic sludge accounts for life mud total mass 25%-30%, in drying machine, pour out, go out in the domestic sludge behind the machine to add foam coal, coal briquette bond in proportion, send into stirrer for mixing and stir, send into compression moulding in the molding coal machine again, be deposited in solar energy drying shed middle mummification.
Embodiment 1
Choose 30% domestic sludge by mass percentage respectively, 67.5% foam coal, 2.5% coal briquette bond, the quality sum of each component is 100%;
Earlier domestic sludge is carried out processed, domestic sludge after the dehydration is packed in the turning circle cartridge type drying machine, with introducing the high-temperature flue gas that domestic sludge produces in the moulded coal bake drying machine, when moisture content accounts for life mud total mass 25% in the domestic sludge, in drying machine, pour out, go out in the domestic sludge behind the machine and add foam coal, coal briquette bond according to the above ratio, send into stirrer for mixing and stir, send into compression moulding in the molding coal machine again, be deposited in solar energy drying shed middle mummification.
Embodiment 2
Choose 84% domestic sludge by mass percentage respectively, 15% foam coal, 1% coal briquette bond, the quality sum of each component is 100%;
Earlier domestic sludge is carried out processed, domestic sludge after the dehydration is packed in the turning circle cartridge type drying machine, with introducing the high-temperature flue gas that domestic sludge produces in the moulded coal bake drying machine, when moisture content accounts for life mud total mass 30% in the domestic sludge, in drying machine, pour out, go out in the domestic sludge behind the machine and add foam coal, coal briquette bond according to the above ratio, send into stirrer for mixing and stir, send into compression moulding in the molding coal machine again, be deposited in solar energy drying shed middle mummification.
Embodiment 3
Choose 49% domestic sludge by mass percentage respectively, 49% foam coal, 2% coal briquette bond, the quality sum of each component is 100%;
Earlier domestic sludge is carried out processed, domestic sludge after the dehydration is packed in the turning circle cartridge type drying machine, with introducing the high-temperature flue gas that domestic sludge produces in the moulded coal bake drying machine, when moisture content accounts for life mud total mass 27% in the domestic sludge, in drying machine, pour out, go out in the domestic sludge behind the machine and add foam coal, coal briquette bond according to the above ratio, send into stirrer for mixing and stir, send into compression moulding in the molding coal machine again, be deposited in solar energy drying shed middle mummification.
The high-temperature flue gas that the moulded coal stoving oven produces among the present invention can kill the germ in the domestic sludge, and rapid evaporation domestic sludge moisture satisfies mass-producing and disposes domestic sludge, domestic sludge is converted into the main batching of moulded coal.With the moulded coal that domestic sludge is made, fuel, reach the purpose of " treatment of wastes with processes of wastes against one another " as the moulded coal stoving oven.Utilize the solar energy drying shed interior heat and the quick mobile usefulness of hot and cold air, further mass-producing mummification moulded coal.Add the foam coal in the domestic sludge, can increase the porosity of moulded coal, accelerate moulded coal to the absorption of solar heat and the evaporation of moisture, the aerobic reaction of favourable domestic sludge reduces stink, improves the calorific value of moulded coal.Domestic sludge, foam coal, coal briquette bond mix when stirring, and need not add water and stir.Domestic sludge transfers biofuel realization harmless domestic sludgeization, the recycling of " inexhaustible, nexhaustible " to the most at last.
Claims (2)
1. a moulded coal fuel composition is characterized in that, and is composed of the following components by mass percentage:
Domestic sludge 30%-84%, foam coal 15%-67.5%, coal briquette bond 1%-2.5%, the quality sum of each component is 100%.
2. the preparation method of moulded coal fuel composition according to claim 1 is characterized in that, specifically carries out according to following steps:
Step 1 is chosen the domestic sludge of 30%-84% by mass percentage respectively, the foam coal of 15%-67.5%, and the coal briquette bond of 1%-2.5%, the quality sum of each component is 100%;
Step 2, earlier domestic sludge is carried out processed, domestic sludge after the dehydration is packed in the turning circle cartridge type drying machine, with introducing the high-temperature flue gas that domestic sludge produces in the moulded coal bake drying machine, when moisture content in the domestic sludge accounts for life mud total mass 25%-30%, in drying machine, pour out, go out in the domestic sludge behind the machine to add foam coal, coal briquette bond in proportion, send into stirrer for mixing and stir, send into compression moulding in the molding coal machine again, be deposited in solar energy drying shed middle mummification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910304285 CN101619253B (en) | 2009-07-13 | 2009-07-13 | Moulded coal fuel composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910304285 CN101619253B (en) | 2009-07-13 | 2009-07-13 | Moulded coal fuel composition and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101619253A true CN101619253A (en) | 2010-01-06 |
| CN101619253B CN101619253B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910304285 Expired - Fee Related CN101619253B (en) | 2009-07-13 | 2009-07-13 | Moulded coal fuel composition and preparation method thereof |
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| CN (1) | CN101619253B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242927A (en) * | 2012-02-01 | 2013-08-14 | 吴舒克 | Production technology and method for preparing lump coal by use of coal dust and river mud |
| CN103710064A (en) * | 2013-12-18 | 2014-04-09 | 华中科技大学 | Sludge-lignite molded fuel and preparation method thereof |
| CN104232235A (en) * | 2014-10-17 | 2014-12-24 | 苏州新协力环保科技有限公司 | Production process of bio-mass fuel |
| CN105176617A (en) * | 2015-04-14 | 2015-12-23 | 内蒙古科技大学 | Cold press molding method for improving molded coal compressive strength |
| CN112646625A (en) * | 2019-10-12 | 2021-04-13 | 赫普能源环境科技有限公司 | Sludge briquette composition and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091462C (en) * | 1997-01-22 | 2002-09-25 | 王庆会 | Method for producing briquette coal using house refuse |
| CN101440320A (en) * | 2007-11-20 | 2009-05-27 | 于波 | Fuel coal briquette made of refuse |
| CN101362977A (en) * | 2008-09-12 | 2009-02-11 | 周泽宇 | Technique for preparing consumer waste regenerated coal |
-
2009
- 2009-07-13 CN CN 200910304285 patent/CN101619253B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242927A (en) * | 2012-02-01 | 2013-08-14 | 吴舒克 | Production technology and method for preparing lump coal by use of coal dust and river mud |
| CN103710064A (en) * | 2013-12-18 | 2014-04-09 | 华中科技大学 | Sludge-lignite molded fuel and preparation method thereof |
| CN103710064B (en) * | 2013-12-18 | 2015-05-20 | 华中科技大学 | Sludge-lignite molded fuel and preparation method thereof |
| CN104232235A (en) * | 2014-10-17 | 2014-12-24 | 苏州新协力环保科技有限公司 | Production process of bio-mass fuel |
| CN105176617A (en) * | 2015-04-14 | 2015-12-23 | 内蒙古科技大学 | Cold press molding method for improving molded coal compressive strength |
| CN105176617B (en) * | 2015-04-14 | 2018-08-14 | 内蒙古科技大学 | A kind of cold compression molding method improving moulded coal compression strength |
| CN112646625A (en) * | 2019-10-12 | 2021-04-13 | 赫普能源环境科技有限公司 | Sludge briquette composition and preparation method thereof |
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| Publication number | Publication date |
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| CN101619253B (en) | 2012-12-26 |
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