CN105885983A - Method for preparing formed fuel by using agricultural wastes - Google Patents
Method for preparing formed fuel by using agricultural wastes Download PDFInfo
- Publication number
- CN105885983A CN105885983A CN201410668953.5A CN201410668953A CN105885983A CN 105885983 A CN105885983 A CN 105885983A CN 201410668953 A CN201410668953 A CN 201410668953A CN 105885983 A CN105885983 A CN 105885983A
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- China
- Prior art keywords
- agricultural wastes
- fuel
- liquid waste
- formed fuel
- raw materials
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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
-
- 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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- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a method for preparing a formed fuel by using agricultural wastes, belongs to the technical field of solid fuels, and is used to solve the problem of waste utilization. The technical scheme is showed as follows: straw, sawdust, wood chips, rice husks, bagasse and other agricultural wastes and a papermaking liquid waste are used as raw materials to prepare the formed fuel by the steps of drying, crushing, mixing and stirring, forming and the like. According to the method disclosed by the invention, a biomass fuel is prepared by taking the agricultural wastes and the papermaking liquid waste as raw materials, thereby not only saving raw material costs, but also reducing pollution emissions. The adhesive effect of some substances in the papermaking liquid waste is used to avoid heating for briquetting, so that no heating loss is caused, and the abrasion of mechanical equipment and the heat energy loss of the raw materials caused by heating are reduced. In addition, the papermaking liquid waste contains 3-5% of alkaline substances, which can enhance the activity of combustion. The formed fuel prepared by using the method provided by the invention has the characteristics of flammability, high heat value, low cost, no pollution and so on.
Description
Technical field
The present invention relates to the regeneration treating method of a kind of agricultural wastes, in particular with papermaking wastewater with straw
It is the main agricultural wastes methods of preparing shaped fuel, belongs to solid-fuel technology field.
Background technology
Garbage agriculturally extremely enriches, and as a example by China, can produce straw about 6.5 hundred million tons every year,
7.26 hundred million tons will be up to by 2010, be equivalent to 500,000,000 tons of mark coals.Owing to the universal calorific value of agricultural wastes is low,
Density is little, and volume is big, is difficult to transport, and directly the thermal efficiency of burning is only 10%～30%, makes agriculture waste
Directly utilizing of thing is restricted.In recent years, along with improving constantly of agricultural economy level, life in the countryside energy
In high-grade commercial energy be gradually increased, the ratio shared by straw is more and more lower, and a large amount of discarded straws are in field
Between the edge of a field be incinerated, this phenomenon not only wastes substantial amounts of biomass energy, and environment is caused severe contamination.
For above-mentioned phenomenon, agricultural wastes are converted into high-grade energy, Substitute For Partial coal, oil through deep processing
Deng Fossil fuel, the pollution caused the situation of alleviation rural energy anxiety, effective improvement straw burning undoubtedly is all
Significant.At present, agricultural wastes forming technique be by all kinds of scattered, do not have effigurate agriculture
Crop material, sawdust, wood flour, rice hulls, bagasse the like waste be dried, pulverize after, in uniform temperature and
Under pressure effect, be pressed into regular shape, bar-shaped, block or graininess shaped fuel that density is bigger.It is adopted
Forming technique mainly rely on heating after hot-forming, this mode has that energy consumption is high, high in cost of production problem,
Meanwhile, heating also can cause the heat energy loss of equipment wearing and fuel.It addition, some forming techniques are for increasing
The viscosity of add-on type fuel, adds Mel, amylan, clay, tar etc. in forming process and makees binding agent,
This also improves the production cost of fuel undoubtedly, and clay, Colophonium etc. make binding agent and article shaped also can be made to burn
Slagging scorification is serious, produces burning and negatively affects definitely.
Summary of the invention
The present invention for overcome the defect of prior art and provide one to utilize papermaking wastewater to be binding agent, room temperature i.e.
Can be compressing utilize the method that agricultural wastes prepare shaped fuel.
Problem alleged by the present invention solves with following technical proposals:
A kind of method utilizing agricultural wastes to prepare shaped fuel, it with straw, sawdust, wood flour, rice hulls,
These agricultural wastes of bagasse and papermaking wastewater are raw material, carry out in accordance with the following steps:
A. it is dried: by above-mentioned agriculture waste raw material natural drying to moisture content 7.5～20%wb；
B. pulverize: dried agricultural wastes are crushed to particle diameter≤50mm；
C. mixture: the agricultural wastes after pulverizing and the ratio of papermaking wastewater by weight 1000: 50～400
Mix, stir；
D. molding: said mixture material feeding impact briquetting machine is pressed into biomass moulding combustion at normal temperatures
Material.
The above-mentioned method utilizing agricultural wastes to prepare shaped fuel, described biomass molding fuel is diameter
25～80mm, the cylinder of length 30～80mm, or square that the length of side is 25～100mm or cuboid.
The above-mentioned method utilizing agricultural wastes to prepare shaped fuel, the briquetting pressure of described impact briquetting machine is
10～60MP.
The present invention prepares biomass molding fuel for raw material, both with agricultural wastes and papermaking wastewater both refuses
Save cost of material, alleviate again papermaking wastewater and pollute and agricultural wastes are burnt the grass on waste land pollution.Utilize papermaking wastewater
In the adhesive effect of some materials can make during agglomeration without heating, thus without heating energy loss, subtract simultaneously
Light by the heat energy loss adding thermally-induced equipment wearing and raw material.Additionally, in papermaking wastewater containing 3～
The alkaline matter of 5%, can make combustion activity strengthen.The shaped fuel prepared in the process of the present invention have inflammable,
The features such as calorific value is high, pollution-free, low cost, can be as cooking, heating fuel, it is also possible to as Industrial Boiler
With the fuel of power plant, there is good society, economy, environmental benefit.
Detailed description of the invention
The inventive method directly uses papermaking wastewater to add as biomass molding fuel according to certain adding proportion
Adding agent, it utilizes the solid content in papermaking wastewater include lignin, cellulose, the degradation product of hemicellulose and have
Machine acid etc., these materials generate carbohydrate play cementation, can in shaped fuel preparation process nothing
Direct pressing molding need to be heated, but also relaxed density and the durability of shaped fuel can be improved.Additionally, one
In the case of as, containing 3～the alkaline matter of 5% in papermaking wastewater, combustion activity can be made to be enhanced, black liquor
In the caloric value of lignin up to 6000kcal/kg.Directly using papermaking wastewater is additive, i.e. can reach nothing
The purpose improving bonding force need to be heated, can farthest reduce again the production cost of biomass molding fuel, also
Twice laid can be realized, be killing three birds with one stone.
Several specific embodiment presented below:
Embodiment 1: choose the agricultural wastes natural dryings such as straw, sawdust, wood flour, rice hulls, bagasse
To moisture content 7.5%wb, dried agricultural wastes are crushed to particle diameter 40mm；Agricultural after pulverizing is given up
Gurry mixes with the ratio of papermaking wastewater by weight 1000: 50, stirs；By said mixture
Material is sent into impact briquetting machine and is pressed into diameter 25mm with pressure 60MP at normal temperatures, the cylinder of length 30mm
Body biomass molding fuel.
Embodiment 2: choose the agricultural wastes natural dryings such as straw, sawdust, wood flour, rice hulls, bagasse
To moisture content 20%wb, dried agricultural wastes are crushed to particle diameter 50mm；Agricultural after pulverizing is given up
Gurry mixes with the ratio of papermaking wastewater by weight 1000: 400, stirs；By said mixture
Material is sent into impact briquetting machine and is pressed into the cuboid of the length of side 25 × 40 × 100mm at normal temperatures with pressure 10MP
Biomass molding fuel.
Embodiment 3: choose the agricultural wastes natural dryings such as straw, sawdust, wood flour, rice hulls, bagasse
To moisture content 15%wb, dried agricultural wastes are crushed to particle diameter 35mm；Agricultural after pulverizing is given up
Gurry mixes with the ratio of papermaking wastewater by weight 1000: 200, stirs；By said mixture
Material is sent into impact briquetting machine and is pressed into diameter 40mm with pressure 30MP at normal temperatures, the cylinder of length 80mm
Body biomass molding fuel.
Embodiment 4: choose the agricultural wastes natural dryings such as straw, sawdust, wood flour, rice hulls, bagasse
To moisture content 10%wb, dried agricultural wastes are crushed to particle diameter 30mm；Agricultural after pulverizing is given up
Gurry mixes with the ratio of papermaking wastewater by weight 1000: 150, stirs；By said mixture
Material is sent into impact briquetting machine and is pressed into the square life of the length of side 40 × 40 × 40mm at normal temperatures with pressure 20MP
Material shaped fuel.
Claims (3)
1. one kind utilizes the method that agricultural wastes prepare shaped fuel, it is characterised in that: it with straw, sawdust,
These agricultural wastes of wood flour, rice hulls, bagasse and papermaking wastewater are raw material, carry out in accordance with the following steps:
A. it is dried: by described agriculture waste raw material natural drying to moisture content 7.5～20%wb；
B. pulverize: dried agricultural wastes are crushed to particle diameter≤50mm；
C. mixture: the agricultural wastes after pulverizing and the ratio of papermaking wastewater by weight 1000: 50～400
Mix, stir；
D. molding: by said mixture material send into impact briquetting machine, at normal temperatures be pressed into biomass moulding combustion
Material.
The method utilizing agricultural wastes to prepare shaped fuel the most according to claim 1, its feature exists
In: described biomass molding fuel is diameter 25～80mm, the cylinder of length 30～80mm, or the length of side is
The square of 25～100mm or cuboid.
The method utilizing agricultural wastes to prepare shaped fuel the most according to claim 1 and 2, its feature
It is: the briquetting pressure of described impact briquetting machine is 10～60MP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668953.5A CN105885983A (en) | 2014-11-08 | 2014-11-08 | Method for preparing formed fuel by using agricultural wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668953.5A CN105885983A (en) | 2014-11-08 | 2014-11-08 | Method for preparing formed fuel by using agricultural wastes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105885983A true CN105885983A (en) | 2016-08-24 |
Family
ID=56698566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410668953.5A Pending CN105885983A (en) | 2014-11-08 | 2014-11-08 | Method for preparing formed fuel by using agricultural wastes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105885983A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028995A (en) * | 2019-04-25 | 2019-07-19 | 梅丽中 | A kind of alkaline biological particles and special equipment for incineration disposal organic liquid waste |
| CN110437908A (en) * | 2019-07-19 | 2019-11-12 | 长沙汉创新材料科技有限公司 | A kind of biomass fuel block and preparation method thereof |
| KR102517510B1 (en) * | 2022-10-27 | 2023-04-04 | 한국세라믹기술원 | Fuel making method including silica component extracted from biomass that can prevent internal corrosion, agglomeration and slagging of boiler |
-
2014
- 2014-11-08 CN CN201410668953.5A patent/CN105885983A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028995A (en) * | 2019-04-25 | 2019-07-19 | 梅丽中 | A kind of alkaline biological particles and special equipment for incineration disposal organic liquid waste |
| CN110437908A (en) * | 2019-07-19 | 2019-11-12 | 长沙汉创新材料科技有限公司 | A kind of biomass fuel block and preparation method thereof |
| KR102517510B1 (en) * | 2022-10-27 | 2023-04-04 | 한국세라믹기술원 | Fuel making method including silica component extracted from biomass that can prevent internal corrosion, agglomeration and slagging of boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
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| WD01 | Invention patent application deemed withdrawn after publication |