CN102764611A - Straw pelleting process - Google Patents
Straw pelleting process Download PDFInfo
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- CN102764611A CN102764611A CN2012102756476A CN201210275647A CN102764611A CN 102764611 A CN102764611 A CN 102764611A CN 2012102756476 A CN2012102756476 A CN 2012102756476A CN 201210275647 A CN201210275647 A CN 201210275647A CN 102764611 A CN102764611 A CN 102764611A
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Abstract
The invention belongs to the field of processing and application of straw and particularly relates to a straw pelleting process. The process mainly comprises the steps of 1), performing coarse grinding and feeding the ground straw into an ensiling pool to perform ensiling fermentation treatment; 2), drying to obtain ground straw with the water content of 9-15%; 3), performing fine grinding to obtain straw fiber with the particle size of 40-50 meshes per square inch and placing the straw fiber into a storage bin for storage through an air-assisted dust removal system; 4), pelleting, conveying the straw fiber to a ring die pelleting machine and performing compression molding by using a ring die and a compression roller to obtain rodlike straw particles with the density of 1-1.2g/cm3; and 5), performing cooling molding, placing the compressed straw particles into a cooler and cooling the straw particles to the room temperature through air cooling to obtain formed particles with smooth surfaces. According to the process, the straw is used fully, the pelleting effect is good, and the formed straw particles are smooth in surface and free from obvious cracks, are clean energy, can be used as base materials for culture of fungi or supplementary feed of livestocks and are convenient to popularize and apply in a large scale.
Description
Technical field
The present invention relates to a kind of stalk pelletizing technology, belong to the processed and applied field of stalk.
Background technology
Because the discarded maize straw in rural area generally adopts chopping and returning processing on the spot or harvesting to stack and handles, floor space is big during stacking, is difficult to deposit, and brings potential safety hazard during dry weather easily; Also the stalk handled of field often influences the sowing of wheat again at northern area on the spot, so some local mode of burning that adopts usually handles, but can cause a kind of huge pollution to air when burning, and is under an embargo at present.For these stalks are utilized once again, some local comminutor that adopts carries out granulation to stalk.But because the Main Ingredients and Appearance of stalk is cellulose, hemicellulose and lignin; Lignin is the structure monomer with aromatic series characteristic, is a kind of material of impalpable structure, is present in the lignified tissue of plant; When granulation; Lignin in the stalk combines not tight with cellulose, so the granulation effect is bad, and appearance does not go out the phenomenon that grain perhaps can not continue grain easily.The proper molding of not having present stalk particle can satisfy mechanization, in enormous quantities, quantity-produced requirement.
Summary of the invention
According to above deficiency of the prior art; The technical problem that the present invention will solve is: provide a kind of and can utilize stalk again, granulation density is high and effective stalk pelletizing technology; Effectively solve stalk and stored difficult problem; Satisfied mechanization, in enormous quantities, quantity-produced requirement, alleviated the influence of stalk simultaneously environment.
The technical solution adopted for the present invention to solve the technical problems is: described stalk pelletizing technology is characterized in that: comprise following processing step:
1. coarse crushing: through hay cutter stalk is shredded, obtain the crushing straw that length is 20 ~ 100mm, get into the ensiling pond then and carry out the silage fermentation processing;
2. dry: as the crushing straw after the ensiling to be carried out dried, obtain water content and be 9 ~ 15% crushing straw;
3. fine powder is broken: it is broken that dried crushing straw is carried out fine powder through pulverizer, and send dust pelletizing system to get into feed bin through wind and store, and obtaining granularity is 40 ~ 150 purpose stalk fibres;
4. granulation: stalk fibre is delivered to the ring modeling pelletizer, adopts ring mould and pressure roller compression moulding, the temperature that produces 80 ~ 130 ℃ in the pressing process can make the material slaking, and obtaining density is 1 ~ 1.2g/cm
3Stalk particle, particle is bar-shaped, diameter is 8 ~ 10mm, length is 20 ~ 50mm;
5. cooling forming: the stalk particle after the compacting gets into cooler, to room temperature, obtains the smooth surface shaped granule through wind cooling temperature lowering.
Wherein: the drying mode method of step in 2. is a lot, both can adopt air dry, can adopt dryer to carry out pneumatic conveying drying again, adopts three-cylinder drier to carry out flue gas drying among the present invention and handles.
In order to improve the crushing effect of crushing straw, the pulverizer of step in 3. adopts large-scale beater disintegrating machine.
Be instant packed sale, described step 4. and step increase screening technology between 5., the stalk particle after the granulation is screened, obtain the uniform stalk particle of size, cool off afterwards.
Stalk pelletizing is with good conditionsi, and it all has certain requirement to kind, granularity, the moisture content of raw material, before the granulation; Need to carry out suitable pulverizing, drying to stalk earlier,, do not have fusing point but softening point is arranged because the lignin in the stalk belongs to noncrystal; Bonding force begins to increase when temperature is 70 ~ 110 ℃; Lignin (200 ~ 300 ℃) under proper temperature can soften, liquefaction, therefore, and after crushing straw is transported in the comminutor; Through controlling 80 ~ 130 ℃ press temperature, certain in addition pressure again; Lignin and cellulose are closely bonded, and adjacent stalk fibre is gluedd joint mutually, thereby the smooth surface of obtaining, no obvious crackle and density are up to 1 ~ 1.2g/cm
3Stalk particle, get final product curing molding after the cooling.Except above-mentioned points; When in the ring modeling pelletizer, adopting ring mould and pressure roller compression moulding, applied pressure can be adjusted through the eccentric wheel on the pressure roller, through regulating the cohesive force that adjacent stalk fibre can be regulated in pressure roller and ring die clearance; Through control grain density and load; The density of stalk particle is increased to more than 10 times, adopts 80 ~ 130 ℃ press temperature during granulation, can also play the effect of thermalization sterilization particle.
The beneficial effect that the present invention had is:
This stalk pelletizing is simple for process; Through controlling the granulation pressure roller and encircling the cohesive force that adjacent stalk fibre can be regulated in the die clearance; The density of stalk particle is increased greatly, effectively solved the difficult problem that stalk stores, alleviated the influence of stalk simultaneously environment; Make transportation more convenient, and store cost and reduced by 70%; Granulation is effective, the stalk particle smooth surface of moulding, does not have obvious crackle; Through high temperature compressed agricultural crop straw and the stalk particle of moulding is novel clean energy resource, can be convenient to large-scale promotion application as the base material of cultivating mushroom or the auxiliary fodder of livestock and poultry again.
The specific embodiment
Below in conjunction with embodiment the present invention is done and to further describe:
Stalk pelletizing technology among the present invention comprises the steps:
This stalk pelletizing technology is specific as follows:
1, through hay cutter or other shears the agricultural crop straw cutting being obtained length is the crushing straw below 20 ~ 100mm, gets into the ensiling pond then and carries out the silage fermentation processing;
2, crushing straw is sent into carried out dried in the three-cylinder drier, make the water content of crushing straw be controlled at 9 ~ 15%;
3, it is broken and to send dust pelletizing system to obtain granularity through wind be 40 ~ 150 purpose stalk fibres to carry out fine powder through large-scale beater disintegrating machine;
4, stalk fibre is delivered to the ring modeling pelletizer; Adopt ring mould and pressure roller compression moulding, in pressing process, can control grain density and load with the ring die clearance through regulating pressure roller; The control press temperature is about 80 ~ 130 ℃; On the one hand, increase the cohesive force of adjacent stalk fibre, obtain smooth surface, no obvious crackle and density up to 1 ~ 1.2g/cm
3Stalk particle, on the other hand, particle is played the effect of slaking sterilization;
5, the stalk particle after the granulation is screened, obtain the uniform stalk particle of size, chip etc. return step 3 and process again;
6, owing to process the stalk particle of type through the ring mold pressing, temperature up to 100 ℃ about, therefore, need stalk particle be sent into and carry out the cooling curing moulding in the cooler, reduce to room temperature through air cooling system, obtain smooth shaped granule.
7, shaped granule warehouse-in, metering, packing are got final product.
After carrying out stalk pelletizing through this technology, can satisfy mechanical automation, in enormous quantities, quantity-produced requirement, the density of stalk particle has increased more than 10 times; Effectively solved the difficult problem that stalk stores, alleviated the influence of stalk simultaneously, made transportation more convenient environment; And store cost and reduced by 70%; Through high temperature compressed agricultural crop straw and the stalk particle of moulding is novel clean energy resource, again can be as the base material of cultivating mushroom or the auxiliary fodder of livestock and poultry.
Claims (4)
1. stalk pelletizing technology is characterized in that: comprise following processing step:
1. coarse crushing: through hay cutter stalk is shredded, obtain the crushing straw that length is 20 ~ 100mm, get into the ensiling pond then and carry out the silage fermentation processing;
2. dry: as the crushing straw after the ensiling to be carried out dried, obtain water content and be 9 ~ 15% crushing straw;
3. fine powder is broken: it is broken that dried crushing straw is carried out fine powder through pulverizer, and send dust pelletizing system to get into feed bin through wind and store, and obtaining granularity is 40 ~ 150 purpose stalk fibres;
4. granulation: stalk fibre is delivered to the ring modeling pelletizer, adopts ring mould and pressure roller compression moulding, the temperature that produces 80 ~ 130 ℃ in the pressing process can make the material slaking, and obtaining density is 1 ~ 1.2g/cm
3Stalk particle, particle is bar-shaped, diameter is 8 ~ 10mm, length is 20 ~ 50mm;
5. cooling forming: the stalk particle after the compacting gets into cooler, to room temperature, obtains the smooth surface shaped granule through wind cooling temperature lowering.
2. stalk pelletizing technology according to claim 1 is characterized in that: 2. described step adopts three-cylinder drier to carry out flue gas drying and handles.
3. stalk pelletizing technology according to claim 1 is characterized in that: the pulverizer of described step in 3. adopts large-scale beater disintegrating machine.
4. stalk pelletizing technology according to claim 1 is characterized in that: described step 4. and step increase screening technology between 5., the stalk particle after the granulation is screened, obtain the uniform stalk particle of size, cool off afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275647.6A CN102764611B (en) | 2012-08-03 | 2012-08-03 | Straw pelleting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275647.6A CN102764611B (en) | 2012-08-03 | 2012-08-03 | Straw pelleting process |
Publications (2)
| Publication Number | Publication Date |
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| CN102764611A true CN102764611A (en) | 2012-11-07 |
| CN102764611B CN102764611B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210275647.6A Expired - Fee Related CN102764611B (en) | 2012-08-03 | 2012-08-03 | Straw pelleting process |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756747A (en) * | 2014-01-13 | 2014-04-30 | 洛阳理工学院 | Straw biomass crushing and molding method |
| CN105191669A (en) * | 2015-10-28 | 2015-12-30 | 福建健宝农业发展有限公司 | Fresh juncao processing technology for edible and medicinal fungi culture medium and flow processing device of fresh Pennisetum giganteum z.x.lin |
| CN105664793A (en) * | 2016-01-26 | 2016-06-15 | 安徽大地节能科技有限公司 | Granulation technology for waste crops |
| CN106239671A (en) * | 2016-08-19 | 2016-12-21 | 中国水稻研究所 | A kind of agricultural crop straw two step fiberization process and application thereof |
| CN106433846A (en) * | 2016-11-25 | 2017-02-22 | 苏州草宝能源科技有限公司 | Method for producing fuel from plant straw |
| CN107057793A (en) * | 2017-06-08 | 2017-08-18 | 合肥市风达农业有限责任公司 | A kind of Application way of stalk |
| CN107417456A (en) * | 2017-06-23 | 2017-12-01 | 合肥市风达农业有限责任公司 | A kind of preparation method of stalk fertilizer |
| CN111168803A (en) * | 2019-12-31 | 2020-05-19 | 嘉兴市集美新材料科技有限公司 | Environment-friendly waterproof high-strength artificial board and manufacturing method thereof |
| CN111264704A (en) * | 2020-03-03 | 2020-06-12 | 徐展展 | Agricultural straw granulating method |
| CN111386966A (en) * | 2020-03-25 | 2020-07-10 | 黑龙江黑臻生物科技有限公司 | Preparation method of edible fungus culture medium containing compressed straw |
| CN114074016A (en) * | 2021-11-09 | 2022-02-22 | 山东金格瑞机械有限公司 | Drying and crushing method of plant materials and processing system thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1366836A (en) * | 2002-02-04 | 2002-09-04 | 王昌荣 | Method for preparing granular cake and granular feed by using plant straw and stalks |
-
2012
- 2012-08-03 CN CN201210275647.6A patent/CN102764611B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1366836A (en) * | 2002-02-04 | 2002-09-04 | 王昌荣 | Method for preparing granular cake and granular feed by using plant straw and stalks |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756747B (en) * | 2014-01-13 | 2015-07-08 | 洛阳理工学院 | Straw biomass crushing and molding method |
| CN103756747A (en) * | 2014-01-13 | 2014-04-30 | 洛阳理工学院 | Straw biomass crushing and molding method |
| CN105191669B (en) * | 2015-10-28 | 2018-02-27 | 福建健宝农业发展有限公司 | Edible and medical fungi culture medium fresh Juncao processing technology and its flowing water processing unit (plant) |
| CN105191669A (en) * | 2015-10-28 | 2015-12-30 | 福建健宝农业发展有限公司 | Fresh juncao processing technology for edible and medicinal fungi culture medium and flow processing device of fresh Pennisetum giganteum z.x.lin |
| CN105664793A (en) * | 2016-01-26 | 2016-06-15 | 安徽大地节能科技有限公司 | Granulation technology for waste crops |
| CN106239671B (en) * | 2016-08-19 | 2018-01-19 | 中国水稻研究所 | A kind of step fiberization process of agricultural crop straw two and its application |
| CN106239671A (en) * | 2016-08-19 | 2016-12-21 | 中国水稻研究所 | A kind of agricultural crop straw two step fiberization process and application thereof |
| CN106433846A (en) * | 2016-11-25 | 2017-02-22 | 苏州草宝能源科技有限公司 | Method for producing fuel from plant straw |
| CN107057793A (en) * | 2017-06-08 | 2017-08-18 | 合肥市风达农业有限责任公司 | A kind of Application way of stalk |
| CN107417456A (en) * | 2017-06-23 | 2017-12-01 | 合肥市风达农业有限责任公司 | A kind of preparation method of stalk fertilizer |
| CN111168803A (en) * | 2019-12-31 | 2020-05-19 | 嘉兴市集美新材料科技有限公司 | Environment-friendly waterproof high-strength artificial board and manufacturing method thereof |
| CN111264704A (en) * | 2020-03-03 | 2020-06-12 | 徐展展 | Agricultural straw granulating method |
| CN111386966A (en) * | 2020-03-25 | 2020-07-10 | 黑龙江黑臻生物科技有限公司 | Preparation method of edible fungus culture medium containing compressed straw |
| CN114074016A (en) * | 2021-11-09 | 2022-02-22 | 山东金格瑞机械有限公司 | Drying and crushing method of plant materials and processing system thereof |
| CN114074016B (en) * | 2021-11-09 | 2022-07-22 | 山东金格瑞机械有限公司 | Drying and crushing method of plant materials and processing system thereof |
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| Publication number | Publication date |
|---|---|
| CN102764611B (en) | 2015-06-17 |
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Granted publication date: 20150617 Termination date: 20180803 |