CN101519616B - Biomass fuel as well as preparation and application thereof - Google Patents
Biomass fuel as well as preparation and application thereof Download PDFInfo
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- CN101519616B CN101519616B CN2009100484757A CN200910048475A CN101519616B CN 101519616 B CN101519616 B CN 101519616B CN 2009100484757 A CN2009100484757 A CN 2009100484757A CN 200910048475 A CN200910048475 A CN 200910048475A CN 101519616 B CN101519616 B CN 101519616B
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- fuel
- stalk
- biomass fuel
- kiln
- wood chip
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The invention belongs to the field of biological fuels, and in particular relates to a biomass fuel as well as preparation and application thereof. The biomass fuel comprises the following compositions: straw, wooden meal and oxidant. The preparation method comprises that: the straw, the wooden meal or other biomass fuels are subjected to simple pulverization treatment; the water content of the fuel is reduced by adopting tedding or long-term piling and storage; when the fuel is charged for use, the oxidant is added into the fuel; and simultaneously, the invention also relates to application of the biomass fuel in a ring kiln or a tunnel kiln of a brick plant. The biomass fuel has low water content, full combustion, rapid combustion and high calcination temperature which can reach above 1,000 DEG C; simultaneously, the calcination heat meets continuous supply; a sintered product produced by sintering meets requirements of various indexes; therefore, the biomass fuel can fully replace conventional coal fuel in a brick and tile plant.
Description
Technical field
The invention belongs to the biomass fuel field, be specifically related to a kind of biomass fuel and preparation thereof and application.
Background technology
Brick-tile industry is as a kind of traditional " sunset industry ", and its production energy consumption is big, the comsumption of natural resources is big.The crisis of native source, economic crisis, technology crisis, ecocrisis and quality product crisis etc. all take place in many Bricks and Tiles Plants to some extent, make it be faced with the predicament of " outlet, existence, development ".And clay brick and sintered perforated brick be because of its good performance, and along with the fast development that national basis is built, market demand is huge, and growing.Therefore, realize that the technological innovation of brick and tile enterprise, the problem of solution brick and tile Sustainable Development of Enterprises are to be related to the root problem that national basis is built benign development and industry Sustainable development.
Annual nearly agricultural wastes (stalk, rice husk etc.) and a large amount of forestry waste (wood chip) more than 600,000,000 tons of China.How to utilize these abandoned biomass development of resources efficiency of combustion height, cleaning, high-grade fuel substitutes traditional fuel easily, to improving China's energy structure, promoting industrial sustainable development significant.The direct combustion technology of biomass refers to the applying biological matter fuel generation heat that directly burns, the technology that transforms or directly utilize.The direct combustion technology cost of biomass fuel such as stalk, wood chip is low, the direct combustion high-level efficiency, some technology need not characteristics such as thermal power transfer, is one of domestic and international emphasis way of promotion.
Patent of the present invention proposes stalk, wood chip biolobic material fuel substitutes traditional coal fuel, and realizes the application art of its Bricks and Tiles Plant, is to realize one of the technological transformation of brick and tile enterprises " energy-saving and emission-reduction consumption reduction " and important measures of innovation.Therefore, applying not only of achievement of the present invention can produce huge economic benefit to brick and tile enterprise, application units, and to whole walling industry, social development generation remarkable social benefit and environmental benefit, realize social economy, resource, the sustainable coordinated development of environment.
Summary of the invention
In order to solve the technical problem of above-mentioned existence, the invention provides a kind of biomass fuel and preparation thereof and application.
First purpose of the present invention provides a kind of biomass fuel for the Bricks and Tiles Plant, and the mass percent of the moiety of this biomass fuel is as follows:
Stalk: 1%~98.95%;
Wood chip: 1%~98.95%;
Oxygenant: 0.01~0.1%.
Each component of above-mentioned biomass fuel and the preferred scheme of mass percent thereof are:
Stalk: 30%~49.95%;
Wood chip: 50%~69.95%;
Oxygenant: 0.02~0.05%.
Described stalk is selected from one or more in rape stalk, rice straw or the wheat stalk, water ratio (mass percent)≤8%, the particle diameter≤10cm after the pulverizing.
Described wood chip is selected from one or more in all kinds of pines or the forest wood sawdust, water ratio≤5%, and the particle size range of pulverizing the back wood chip is 1~5mm.
Described oxygenant is potassium permanganate, saltpetre or SODIUMNITRATE, preferred potassium permanganate.
Second purpose of the present invention provides the preparation method of above-mentioned biomass fuel, and concrete preparation method is as follows:
After biomass fuels such as stalk or wood chip are carried out simple pulverization process, adopt ted or store up for a long time reduce its water ratio after, add oxygenant when using again feeding intake.
The preparation method's of above-mentioned biomass fuel a preferred version is as follows:
Stalk or wood chip are carried out pulverization process, feasible particle diameter≤the 10cm that pulverizes the back stalk, and the particle size range of pulverizing the back wood chip is 1~5mm, employing is tedded or is stored up for a long time and reduce its water ratio then, make water ratio≤8% of stalk, the water ratio of wood chip≤5% adds oxygenant again when feeding intake use.
The 3rd purpose of the present invention provides the application as direct fuel in brick field annular kiln or tunnel furnace of this biomass fuel.
The 4th purpose of the present invention provides a kind of directly burn sintering process of preparation clay brick or perforated brick of above-mentioned biomass fuel that utilizes.
Preferably, in the above-mentioned sintering process, adding particle size range in the raw material of sintered article is the cinder powder of 1~5mm, the cinder opaque amount of adding be the sintered article raw material quality 20%~30%.
Preferably, in the above-mentioned sintering process, the feeding mode of biomass fuel is: put in annular kiln or the tunnel furnace by the ventilation opening at annular kiln or rotary kiln top, feed intake in a clockwise direction around ventilation opening when feeding intake, fuel is uniformly dispersed in kiln.
Preferably, in the above-mentioned sintering process, can be according to the needs of kiln temperature, several ventilation openings are located on the kiln top opened, control air output by the number of switches of kiln jacking wind, dog-house, when feeding intake, the control air output is 1~2.5m/s, and the later stage is closed blast inlet; In process combustion, the temperature control in the kiln is in 950 ℃~1050 ℃ scope.
Biomass fuel water ratio of the present invention is low, because the existence of oxygenant, compare with stalk or the wood chip of routine, biomass fuel combustion of the present invention is abundant, and burning is fast, the calcining temperature height, can reach more than 1000 ℃, calcine heat simultaneously and satisfy without interruptionly, the sintered article that burns out satisfies every index request, can substitute traditional coal fuel fully in the Bricks and Tiles Plant.Biomass fuel of the present invention can guarantee rational calcining temperature, have heat supply continuously, sufficient combustion, disposal of pollutants be little, burn advantage such as grey reusable edible.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is elaborated.
Embodiment one:
1, the preparation of biomass fuel:
Stalk and wood chip are carried out pulverization process, the stalk particle size range≤10cm after the pulverizing, the particle size range of wood chip is 1~5mm; Reduce its water ratio by the mode of tedding then, make stalk water ratio≤8%, wood chip water ratio≤5% makes biomass fuel with stalk and wood chip mixing back sprinkling potassium permanganate then, and wherein stalk, wood chip and oxygenant three's mass ratio is 98.95: 1: 0.05.
2, biomass fuel substitutes the application that coal fuel directly burns in brick field annular kiln or tunnel furnace:
1) fuel and optimize particle size parameters in admixture cinder powder is done in sintered article, improve the feed particles grating, concrete steps are as follows: at first cinder is broken into the cinder powder that particle diameter is 1mm, then the cinder powder is incorporated in the middle of the brick-making raw material with 30% ratio of the quality of sintered article raw material, again according to the kind of sintered article raw material, at certain forming under the pressure;
2) sintered article of cinder powder that added above-mentioned admixture in annular kiln or the rotary kiln;
3) add biomass fuel in annular kiln or rotary kiln: the biomass fuel that will be sprayed with potassium permanganate is put in the kiln by the ventilation opening at annular kiln or rotary kiln top, when feeding intake, around ventilation opening, feed intake in a clockwise direction, thereby guarantee that fuel is uniformly dispersed in kiln;
4) burning: the number of switches by kiln jacking wind, dog-house is controlled air output, and its concrete steps are: according to the needs of kiln temperature, several ventilation openings being located on the kiln top opened, is 2.5m/s with this ventilation of controlling in the kiln, and the later stage is closed ventilation opening;
5) control temperature: in process combustion, the temperature control in the kiln is in 950 ℃~1050 ℃ scope.
Use in kiln factory by above-mentioned production and application art, after burning, maximum combustion temperature can reach 960 ℃, satisfies the temperature requirement of sintered article high temperature sintering.
The simple stalk that uses, under the situation of oxidizer, in identical feeding intake and controlling under the processing condition, fuel combustion is slow: it is not insufficient to burn, and heat output is not high yet, and maximum combustion temperature can only reach 800 ℃-900 ℃.The simple wood chip that uses, not under the situation of oxidizer, in identical feeding intake and controlling under the processing condition, fuel combustion is slow: heat output is not high yet, maximum combustion temperature is at 800 ℃-950 ℃, temperature of combustion than the biomass fuel that provides in the present embodiment is low, and can't carry out continuous burning, all can't satisfy the demand of Bricks and Tiles Plant.
Embodiment two:
1, the preparation of biomass fuel:
Stalk and wood chip are carried out pulverization process, the stalk particle size range≤10cm after the pulverizing, the particle size range of wood chip is 1~5mm; Reduce its water ratio by the mode of tedding then, make stalk water ratio≤8%, wood chip water ratio≤5%, then with after stalk and the wood chip mixing, sprayed saltpetre and make biomass fuel before using, wherein stalk, wood chip and oxygenant three's mass ratio is 49.96: 49.96: 0.08.
2, biomass fuel substitutes the application that coal fuel directly burns in brick field annular kiln or tunnel furnace:
1) fuel and optimize particle size parameters in admixture cinder powder is done in sintered article, improve the feed particles grating, concrete steps are as follows: at first cinder is broken into the cinder powder that particle size range is 1.5mm, then the cinder powder is incorporated in the middle of the brick-making raw material with 25% ratio of the quality of sintered article raw material, again at the certain pressure compacted under;
2) sintered article of cinder powder that added above-mentioned admixture in annular kiln or the rotary kiln;
3) in annular kiln or rotary kiln, add biomass fuel: saltpetre is sprayed on the biomass fuel, the step that specifically feeds intake is: the biomass fuel that will be sprayed with oxygenant is put in the kiln by the ventilation opening at annular kiln or rotary kiln top, when feeding intake, around ventilation opening, feed intake in a clockwise direction, thereby guarantee that fuel is uniformly dispersed in kiln;
4) burning: the number of switches by kiln jacking wind, dog-house is controlled air output, and its concrete steps are: according to the needs of kiln temperature, several ventilation openings being located on the kiln top opened, is 2.5m/s with this ventilation of controlling in the kiln, and the later stage is closed ventilation opening;
5) control temperature: in process combustion, the temperature control in the kiln is in 950 ℃~1050 ℃ scope.
Use in kiln factory by above-mentioned production and application art, after burning, maximum combustion temperature can reach 1000 ℃, satisfies the temperature requirement of sintered article high temperature sintering.
Embodiment three:
1, the preparation of biomass fuel:
Stalk and wood chip are carried out pulverization process, the stalk particle size range≤10cm after the pulverizing, the particle size range of wood chip is 1~5mm; Reduce its water ratio by the mode of tedding then, make stalk water ratio≤8%, wood chip water ratio≤5% makes biomass fuel with stalk and wood chip mixing back sprinkling SODIUMNITRATE then, and wherein stalk, wood chip and oxygenant three's mass ratio is 1: 98.95: 0.05.
2, biomass fuel substitutes the application that coal fuel directly burns in brick field annular kiln or tunnel furnace:
1) fuel and optimize particle size parameters in admixture cinder powder is done in sintered article, improve the feed particles grating, concrete steps are as follows: at first cinder is broken into the cinder powder that particle size range is 5mm, then the cinder powder is incorporated in the middle of the brick-making raw material with 20% ratio of the quality of sintered article raw material, again at the certain pressure compacted under;
2) sintered article of cinder powder that added above-mentioned admixture in annular kiln or the rotary kiln;
3) in annular kiln or rotary kiln, add biomass fuel: SODIUMNITRATE is sprayed on the biomass fuel, the step that specifically feeds intake is: the biomass fuel that will be sprayed with oxygenant is put in the kiln by the ventilation opening at annular kiln or rotary kiln top, when feeding intake, around ventilation opening, feed intake in a clockwise direction, thereby guarantee that fuel is uniformly dispersed in kiln;
4) burning: the number of switches by kiln jacking wind, dog-house is controlled air output, and its concrete steps are: according to the needs of kiln temperature, several ventilation openings being located on the kiln top opened, is 2m/s with this ventilation of controlling in the kiln, and the later stage is closed ventilation opening;
5) control temperature: in process combustion, the temperature control in the kiln is in 950 ℃~1050 ℃ scope.
Use in kiln factory by above-mentioned production and application art, after burning, maximum combustion temperature can reach 1020 ℃, satisfies the temperature requirement of sintered article high temperature sintering.
Claims (2)
1. the sintering process of a clay brick or perforated brick is characterized in that this sintering process acts as a fuel with biomass fuel, institute
The mass percent of moiety of stating biomass fuel is as follows:
Stalk: 30%~49.95%;
Wood chip: 50%~69.95%;
Oxygenant: 0.02%~0.05%;
Described stalk is selected from one or more in rape stalk, rice straw and the wheat stalk, stalk water ratio≤8%, the particle diameter≤10cm of stalk after pulverizing; Described wood chip is selected from one or more in all kinds of forest wood sawdusts, wood chip water ratio≤5%, and the particle size range of pulverizing the back wood chip is 1~5mm; Described oxygenant is potassium permanganate, saltpetre or SODIUMNITRATE;
Adding particle size range in the raw material of sintered article is the cinder powder of 1~5mm, the cinder opaque amount of adding be the sintered article raw material quality 20%~30%;
The feeding mode of described biomass fuel is: described stalk and wood chip are mixed, before feeding intake, spray described oxygenant and make fuel, put in annular kiln or the rotary kiln by the ventilation opening at annular kiln or rotary kiln top, when feeding intake, around ventilation opening, feed intake in a clockwise direction, fuel is uniformly dispersed in kiln.
2. the preparation method of the biomass fuel in the sintering process of the described clay brick of claim 1 or perforated brick, this preparation method's step is: after stalk or wood chip biomass fuel are carried out pulverization process, employing ted or store up for a long time reduce its water ratio after, add oxygenant when using again feeding intake.
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CN2009100484757A CN101519616B (en) | 2009-03-27 | 2009-03-27 | Biomass fuel as well as preparation and application thereof |
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CN2009100484757A CN101519616B (en) | 2009-03-27 | 2009-03-27 | Biomass fuel as well as preparation and application thereof |
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CN108587713A (en) * | 2018-02-07 | 2018-09-28 | 合肥嘉仕诚能源科技有限公司 | A kind of novel biomass granular fuel and preparation method thereof |
CN110467954A (en) * | 2019-07-03 | 2019-11-19 | 南通汉森农业科技有限公司 | Stalk fuel combination and preparation method thereof |
CN110951514A (en) * | 2019-10-23 | 2020-04-03 | 深圳市海源能源科技有限公司 | Formula and preparation method of additive for refuse derived fuel block |
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