CN104694200A - Preparation method of solid fuel for grain dryer - Google Patents
Preparation method of solid fuel for grain dryer Download PDFInfo
- Publication number
- CN104694200A CN104694200A CN201510083017.2A CN201510083017A CN104694200A CN 104694200 A CN104694200 A CN 104694200A CN 201510083017 A CN201510083017 A CN 201510083017A CN 104694200 A CN104694200 A CN 104694200A
- Authority
- CN
- China
- Prior art keywords
- solid fuel
- straw
- stalk
- slurry
- drying device
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a preparation method of a solid fuel for a grain dryer. The preparation method comprises the following steps: (1) dispersing straws in field, sun drying, and ensuring the water content of the straws after sun drying to be smaller than or equal to 10 percent; (2) preparing the straws after sun drying into particulate materials A with the particle size to be 0.5-1.0cm by using a crusher; (3) stirring the particulate materials A and a starch adhesive according to the ratio to be (80-90) to (20-10) to obtain slurry B, standing for 30-40 minutes at room temperature, then stirring for 5-10 minutes, extruding the slurry B into a lump with the particle size to be 1-2cm by using a granulator under the pressure to be 8-12 MPa and at the temperature to be 55-65 DEG C, and naturally air drying to obtain a semifinished product C for standby; and (4) stirring the semifinished product C, sawdust, rice husks and the starch adhesive according to the ratio to be 50 to 20 to 25 to 5 into slurry D, standing for 15-20 minutes at the room temperature, pressing the slurry D into a bulk shape with the size to be 30*30*50 by using an extrusion formation machine under the pressure to be 0.5-2 MPa and at the temperature of 50-60 DEG C to obtain the solid fuel. According to the preparation method disclosed by the invention, the particle size of the particulate materials A obtained by crushing the straws is 5-10 times of straw coal, the temperature and the pressure of press formation is low, and the pressing time of the press formation is short; in addition, as the cheap starch adhesive is used, the preparation process is simple, and the production cost is lowered.
Description
Technical field
The present invention relates to a kind of foodstuff drying device solid fuel making method.
Background technology
China is one of Major Cereal producing country in the world.Grain moisture content after results is often higher, careless slightly during storage, grain will be caused to go rotten, go bad, and the grain of annual China loss owing to going rotten, competing have several 1,000,000,000 kg.Therefore, in time grain being carried out drying, is an important process of China's grain-production and foodstuff preservation.The method of grain drying is exactly the energy giving grain certain forms by all means, makes the portion of water in grain vaporize and overflow, viewed from energy trasfer form, has convection current, radiation and conduction.For a long time, due to always based on natural seasoning, the recoverable amount of China's grain drying equipment is very little.From the form of grain drying equipment, the many employings of China are tower, the type grain driers such as fluidisation slot type, hot drum-type.
The drying temperature of these equipment is higher, and temperature-stable, after process, the quality of grain is high.But its floor space is large, and one-time investment is high.
Along with the improvement of grain kind, the raising of per unit area yield and country increase the investment of grain drying device, build the more and more of large, medium and small type grain heat-drying facility.In recent years under national relevant policies stimulate, middle-size and small-size foodstuff drying device occupies increasing market, and the practical again dryer of economy is most important.The heat consumed due to grain heat-force dry is very large, therefore constrains the important factor that middle-size and small-size foodstuff drying device promotes the use of and is the energy that foodstuff drying device consumes.
Select must consider local Energy resources during dryer, to accomplish Appropriate application, reduce costs.If any the grain producing region in colliery, thermal source to be advisable with coal, hard coal or coke, its price economy, but Coalhotairfurnace one-time investment is large.Have the grain producing region of oil field and Sweet natural gas, available solar oil, heavy oil or Sweet natural gas and propane etc. are as hotblast stove fuel, and this class A fuel A use cost is high, but hotblast stove one-time investment is little.And recent years one " stalk fuel " dryer, but without exception be all the stalk using charing, coalification, or because of its " straw and coal " made.According to market value in 2015,1 ton of coal can buy 1.5-2 ton " straw and coal ", and therefore cheap " straw and coal " is used as the fuel of foodstuff drying device in a large number.
In recent years market also occurred that a kind of direct use was without the minitype drier of any processing stalk as fuel, although stalk price is extremely cheap, but densified straw is little, volume is large, direct burning straw in foodstuff drying device, because combustion chamber is limited, frequently can change stalk, and straw burning speed is fast, it is indefinite that temperature of combustion rises and falls, and these all can cause hot blast temperature in foodstuff drying device unstable, wayward, affect grain heat-drying effect, have impact on the quality of grain after drying, cause financial loss.
Be used as having of foodstuff drying device fuel at present a lot: coal, solar oil, heavy oil, Sweet natural gas, biogas, " straw and coal ", or even without any processing stalk.Wherein " straw and coal " is although relative low price, and combusting firepower is violent, and produce hot blast with the foodstuff drying device that it does fuel and stablize, its manufacture craft is loaded down with trivial details.And use does fuel without any processing stalk, although cheaply, hot blast temperature in foodstuff drying device can be caused unstable, wayward, affect grain heat-drying effect.
Summary of the invention
The object of this invention is to provide a kind of solid fuel for foodstuff drying device, its manufacture craft is simple, and cost is lower than " straw and coal ", and its combustion time is long, and firepower is gentle, is highly suitable for foodstuff drying device as fuel.
The technical solution used in the present invention is: a kind of foodstuff drying device solid fuel making method, is characterized in that: step is as follows:
(1), by stalk be dispersed in field to dry, guarantee dried water content≤10% of stalk;
(2) granularity, is become by the stalk crushing mechanism after drying to be the saccharoid A of 0.5-1.0cm;
(3), saccharoid A, starch based sizing agent are stirred into slurry B according to 80-90:20-10 ratio, at room temperature static 30-40min, and then stir 5-10min, with tablets press at 8-12 MPa, 55-65 DEG C temperature, be squeezed into the block that granularity is 1-2cm, obtain work in-process C after naturally drying for subsequent use;
(4), work in-process C, sawdust, rice husk, starch based sizing agent are according to the ratio of 50:20:25:5, stir into slurry D, at room temperature static 15-20min, the bulk of 30*30*5cm is made in 0.5-2 MPa, 50-60 DEG C temperatures, i.e. obtained gained solid fuel with single-lead-screw extruding briquetting machine.
As a further improvement on the present invention, in described step (1), the surrogate of stalk can be one or several in wheat stalk, rice straw, maize straw, corn cob, Cotton Stalk, broomcorn straw, rape straw, branch shaft.
As a further improvement on the present invention, in step (4), the surrogate of sawdust can be one or several in the powder biomass fuel such as wood chip, bamboo bits.
4, a kind of foodstuff drying device solid fuel making method according to claim 1, is characterized in that the starch based sizing agent proportioning in step (3) and step (4): starch: potassium permanganate: sodium hydroxide: borax: ferrous ammonium sulphate: urea-formaldehyde resin adhesive: water glass: water=100:2.8:15:3:0.5:72:5:500.
As a further improvement on the present invention, collect less than powder biomass fuel such as sawdust, wood chip, bamboo bits in step (4), can one or several in thick to maize straw, corn cob, Cotton Stalk, broomcorn straw, rape straw, branch etc. stem shaft be broken into pulverizer Powdered, complete the making of slurry D according to aforementioned proportion.
As a further improvement on the present invention; use tablets press to manufacture work in-process C in step (3), can press molding machine be used instead, specifically: with press molding machine under 8-12 MPa; be pressed into the long plate shape thing that 1-2cm is thick, after naturally drying, cut into the work in-process C of 1-3cm again with cutting machine.
The invention has the beneficial effects as follows: 1, in the making of this solid fuel, the saccharoid A particle diameter of crushing straw is " straw and coal " 5-10 times, the temperature of compression moulding, pressure its press time low is short, and use cheap starch based sizing agent, manufacture craft is simple, reduces production cost.According to market price, 1 ton of " straw and coal " price can buy 1.5-2.5 ton solid fuel of the present invention.
2, solid fuel of the present invention because of its at low pressures, the rice husk, sawdust etc. large with surface-area are filled in the geometry shape work in-process of 1-2cm, its short texture porous, larger than " straw and coal " specific surface area, be different from " straw and coal " compactness, therefore during burning, temperature-rise ratio uses " straw and coal " to want fast, but firepower is gentle compared with " straw and coal ", temperature of combustion is stablized, and is particularly suitable for grain drier and uses.
3, moulding product of the present invention improves 300-800 kilocalorie than the calorific value of former stalk.Stalk is shaping through the density of grinding and processing pressure, increase in density; The volume public affairs of moulding product are equivalent to 1/20 of former stalk.Than great, easily store, security is good, and combustion time is long.Substantially prolongs the straw burning time, is 10-15 times of same weight stalk.Than direct burning straw, decrease the direct burning straw class foodstuff drying device refuel frequency, save manpower.And because moulding product of the present invention is curing molding, reduce the flying dust produced in direct burning straw process and pollute.
4, with the maize straw in rural area, corn cob, wheat stalk, cotton stalk, straw, rice husk, tree skill, Pericarppium arachidis hypogaeae, corn cob the like waste for raw material.Effectively can prevent the harm of crop straw burning, protection and cleaning ambient, for peasant's extra earning have found a new road of getting rich.
Embodiment
Embodiment:
(1) stalk (in the shaft such as wheat stalk, rice straw, maize straw, corn cob, Cotton Stalk, broomcorn straw, rape straw, branch one or several) is dispersed in field to dry, guarantees stalk dried water content≤10%(weight ratio);
(2) granularity is become by the stalk crushing mechanism after drying to be the saccharoid A of 0.5-1.0cm;
(3) saccharoid A, starch based sizing agent are stirred into slurry B according to 80-90:20-10 ratio, at room temperature static 30-40min, and then stir 5-10min, with tablets press at 8-12 MPa, 55-65 DEG C temperature, be squeezed into block that granularity is 1-2cm (block can be the geometry three-dimensional shapes such as cylindrical, square column type), obtain work in-process C after naturally drying for subsequent use;
(4), work in-process C, sawdust (also can be one or several in the powder biomass fuel such as wood chip, bamboo bits), rice husk (or the shell after the grain threshing such as wheat husk), starch based sizing agent are according to the ratio of 50:20:25:5, stir into slurry D, at room temperature static 15-20min, the bulk of 30*30*5cm is made in 0.5-2 MPa, 50-60 DEG C temperatures, i.e. obtained gained solid fuel with single-lead-screw extruding briquetting machine.(can according to combustion efficacy adjustment solid fuel size, the shape of different dryer type and requirement, as cylindrical, cellular etc.);
Starch based sizing agent proportioning in step 3 and step 4: starch: potassium permanganate: sodium hydroxide: borax: ferrous ammonium sulphate: urea-formaldehyde resin adhesive: water glass: water=100:2.8:15:3:0.5:72:5:500;
One or several in step 1 in the thin stem stalk such as wheat stalk and rice straw, broken in the same set, then carry out according to 2-4 step; Or one or several in the thick stem shaft such as maize straw, corn cob, Cotton Stalk, broomcorn straw, rape straw, branch, broken in the same set, then carry out according to 2-4 step.Such thickness stem stalk separately uses, and will increase the stability of the structure of work in-process C, improving product quality;
As collected less than powder biomass fuel such as sawdust, wood chip, bamboo bits in step 4, can one or several in thick to maize straw, corn cob, Cotton Stalk, broomcorn straw, rape straw, branch etc. stem shaft be broken into pulverizer Powdered, complete the making of slurry D according to aforementioned proportion;
Use tablets press to manufacture work in-process C in step 3, can press molding machine be used instead, specifically: with press molding machine under 8-12 MPa, be pressed into the long plate shape thing that 1-2cm is thick, after naturally drying, cut into the work in-process C of 1-3cm again with cutting machine.The method relative merits are: in original granulation step, and costly, change into and make work in-process C with film laminator+cutting machine, press molding machine can use the film laminator in step 4 to tablets press price, reduces production cost; But during the work in-process using this method to cut, edge section is easily broken, and the semi-finished product structure that structure does not have tablets press to make is tight.Therefore, when step 4 pressing process, starch based sizing agent content will increase 1-2%.The structural rate of the finished solid fuel finally completed is original slightly poor, and the weight of bearing reduces by 10% than original, be unfavorable for extensive long-distance transport, but the finished product cost is lower than originally.
Above embodiments of the present invention are described, but the invention is not restricted to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Claims (6)
1. a foodstuff drying device solid fuel making method, is characterized in that: step is as follows:
(1), by stalk be dispersed in field to dry, guarantee dried water content≤10% of stalk;
(2) granularity, is become by the stalk crushing mechanism after drying to be the saccharoid A of 0.5-1.0cm;
(3), saccharoid A, starch based sizing agent are stirred into slurry B according to 80-90:20-10 ratio, at room temperature static 30-40min, and then stir 5-10min, with tablets press at 8-12 MPa, 55-65 DEG C temperature, be squeezed into the block that granularity is 1-2cm, obtain work in-process C after naturally drying for subsequent use;
(4), work in-process C, sawdust, rice husk, starch based sizing agent are according to the ratio of 50:20:25:5, stir into slurry D, at room temperature static 15-20min, the bulk of 30*30*5cm is made in 0.5-2 MPa, 50-60 DEG C temperatures, i.e. obtained gained solid fuel with single-lead-screw extruding briquetting machine.
2. a kind of foodstuff drying device solid fuel making method according to claim 1, is characterized in that the surrogate of stalk in described step (1) can be one or several in wheat stalk, rice straw, maize straw, corn cob, Cotton Stalk, broomcorn straw, rape straw, branch shaft.
3. a kind of foodstuff drying device solid fuel making method according to claim 1, is characterized in that the surrogate of sawdust in step (4) can be one or several in the powder biomass fuel such as wood chip, bamboo bits.
4. a kind of foodstuff drying device solid fuel making method according to claim 1, is characterized in that the starch based sizing agent proportioning in step (3) and step (4): starch: potassium permanganate: sodium hydroxide: borax: ferrous ammonium sulphate: urea-formaldehyde resin adhesive: water glass: water=100:2.8:15:3:0.5:72:5:500.
5. a kind of foodstuff drying device solid fuel making method according to claim 1, it is characterized in that collecting less than powder biomass fuel such as sawdust, wood chip, bamboo bits in step (4), can one or several in thick to maize straw, corn cob, Cotton Stalk, broomcorn straw, rape straw, branch etc. stem shaft be broken into pulverizer Powdered, complete the making of slurry D according to aforementioned proportion.
6. a kind of foodstuff drying device solid fuel making method according to claim 1; it is characterized in that in step (3), using tablets press to manufacture work in-process C; press molding machine can be used instead; specifically: with press molding machine under 8-12 MPa; be pressed into the long plate shape thing that 1-2cm is thick, after naturally drying, cut into the work in-process C of 1-3cm again with cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083017.2A CN104694200A (en) | 2015-02-16 | 2015-02-16 | Preparation method of solid fuel for grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083017.2A CN104694200A (en) | 2015-02-16 | 2015-02-16 | Preparation method of solid fuel for grain dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104694200A true CN104694200A (en) | 2015-06-10 |
Family
ID=53341763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510083017.2A Pending CN104694200A (en) | 2015-02-16 | 2015-02-16 | Preparation method of solid fuel for grain dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104694200A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462646A (en) * | 2015-12-01 | 2016-04-06 | 沙洋科隆农业科技有限公司 | Novel DBBF (densified biomass briquette fuel) and preparation method thereof |
| CN107674721A (en) * | 2016-08-02 | 2018-02-09 | 付殿春 | Plant straw powder shaping fuel combination and preparation method thereof |
| CN110776969A (en) * | 2018-07-31 | 2020-02-11 | 龙门县景龙生物能源有限公司 | High-calorific-value biomass granular fuel and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157876A (en) * | 2007-11-17 | 2008-04-09 | 李学敏 | Biomass fuel forming method |
| CN101240205A (en) * | 2008-03-05 | 2008-08-13 | 华北电力大学 | Method for preparing formed fuel by using agriculture castoff |
| KR20110125939A (en) * | 2010-05-14 | 2011-11-22 | 강양곤 | Solid fuel pellet of spherical shape and making method |
| CN103013611A (en) * | 2012-12-26 | 2013-04-03 | 济南三农能源科技有限公司 | Biomass curing-forming fuel and preparation method thereof |
| CN103320194A (en) * | 2013-07-16 | 2013-09-25 | 徐州万国生物能源科技有限公司 | Preparation method of composite straw fuel |
-
2015
- 2015-02-16 CN CN201510083017.2A patent/CN104694200A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157876A (en) * | 2007-11-17 | 2008-04-09 | 李学敏 | Biomass fuel forming method |
| CN101240205A (en) * | 2008-03-05 | 2008-08-13 | 华北电力大学 | Method for preparing formed fuel by using agriculture castoff |
| KR20110125939A (en) * | 2010-05-14 | 2011-11-22 | 강양곤 | Solid fuel pellet of spherical shape and making method |
| CN103013611A (en) * | 2012-12-26 | 2013-04-03 | 济南三农能源科技有限公司 | Biomass curing-forming fuel and preparation method thereof |
| CN103320194A (en) * | 2013-07-16 | 2013-09-25 | 徐州万国生物能源科技有限公司 | Preparation method of composite straw fuel |
Non-Patent Citations (2)
| Title |
|---|
| 左然等: "《可再生能源概论》", 31 August 2007, 机械工业出版社 * |
| 李和平: "《胶黏剂配方工艺手册》", 28 February 2006, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462646A (en) * | 2015-12-01 | 2016-04-06 | 沙洋科隆农业科技有限公司 | Novel DBBF (densified biomass briquette fuel) and preparation method thereof |
| CN107674721A (en) * | 2016-08-02 | 2018-02-09 | 付殿春 | Plant straw powder shaping fuel combination and preparation method thereof |
| CN110776969A (en) * | 2018-07-31 | 2020-02-11 | 龙门县景龙生物能源有限公司 | High-calorific-value biomass granular fuel and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Theerarattananoon et al. | Physical properties of pellets made from sorghum stalk, corn stover, wheat straw, and big bluestem | |
| CN102212375B (en) | Preparation method of machine-made charcoal and machine-made charcoal | |
| CN103450962B (en) | Production technique of pure cedar biomass granular fuel | |
| CN100358981C (en) | Granular fuel with crop straw and production thereof | |
| CN107099353A (en) | A kind of complex biological matter fuel preparation method | |
| CN104694200A (en) | Preparation method of solid fuel for grain dryer | |
| CN104212531A (en) | Method for preparing solid fuel by exploding biomass waste through external gas assisted by steam | |
| CN103421572B (en) | A kind of machine-made charcoal | |
| KR20110121485A (en) | Manufacturing method and composite of corn cob fuel pellet | |
| CN104194811A (en) | Carbon powder preparation method | |
| CN108913259A (en) | The multiple-effect of straw biomass fuel utilizes manufacturing method | |
| CN103923719A (en) | Composite solid fuel | |
| CN206631550U (en) | A kind of stalk facility for granulating | |
| CN108559573A (en) | A kind of preparation method of environment-friendlybiomass biomass granular fuel | |
| US20120204482A1 (en) | Moisture resistant biomass fuel compact and method of manufacturing | |
| CN103950084B (en) | Microwave sizing stalk manufactures the method for environmental protection wood materials | |
| CN104830394A (en) | Biomass fuel | |
| CN103409195B (en) | The production method of the shaping granular fuel of a kind of cold conditions extruding classification | |
| CN106239671A (en) | A kind of agricultural crop straw two step fiberization process and application thereof | |
| CN105861567A (en) | Method for producing high-heating-value biomass fuel from agricultural and forestry wastes | |
| CN107498686A (en) | Green Wheat Straw sheet production method | |
| CN108285815A (en) | A kind of rice husk straw biomass particle | |
| CN103865604A (en) | Straw powder machine-processed composite charcoal | |
| CN105969441A (en) | Biomass briquette with good compressive strength and manufacturing method thereof | |
| TW201809149A (en) | Raw plastic containing brewery spent grain and the manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |