CN103711016A - Pretreatment and storage method for artificial straw board raw materials - Google Patents
Pretreatment and storage method for artificial straw board raw materials Download PDFInfo
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- CN103711016A CN103711016A CN201210369034.9A CN201210369034A CN103711016A CN 103711016 A CN103711016 A CN 103711016A CN 201210369034 A CN201210369034 A CN 201210369034A CN 103711016 A CN103711016 A CN 103711016A
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Abstract
The invention relates to a pretreatment and storage method for artificial straw board raw materials. The pretreatment and storage method includes the steps and conditions of: 1), straw rubbing and cutting, namely unpacking fresh straw in bundled packages and using a large straw rubbing machine to have the straw pulled, spit and cut into straw fibers which are 2-12cm in length; 2), antiseptic and antimildew agent spraying, namely spraying the antiseptic and antimildew agent to the straw by the proportion of 2% of straw weight at the time when the rubbed straw is discharged and blown out by air; 3), drying, namely feeding the straw, subjected to the antiseptic and antimildew agent spraying, into drying equipment to allow moisture content of the straw to be maintained from 13% to 15% till the antiseptic and antimildow agent is entirely absorbed in the straw fibers in the process of drying; 4), bundling with compression and storing in piles, namely bundling the dried straw with compression and storing the same regularly in a workshop so as to reserve ventilation ducts. The pretreatment and storage method is simple in process and high in efficiency, and a great deal of crop straw can be treated in a short time; lignin and cellulose in the pretreated straw raw materials can still be kept fresh without being rotted and mildewed within 1-2 years of storage, so that physical indicators of straw board products in subsequent production can be the optimal.
Description
Technical field
The invention belongs to wood-based plate and manufacture field, is especially the raw-material preliminary treatment of artificial stalk board and deposit method.
Technical background
China's agricultural straw resource is extremely abundant, uses artificial board of straw not only can improve stalk consumption rate and utilization rate, saves timber resources; reduce crop straw burning; make a silk purse out of a sow's ear, preserve the ecological environment, promoted agricultural economy development, expand urban-rural employment, increased peasant's income.
Because agricultural crop straw is the Herbaceous Fiber of cycling deposition every year, the key of producing stalk board is will be within more than 20 days time, and whole year production stalk total amount, disposable purchase enters factory.Yet stalk moisture when harvesting is very high, Wheat Straw moisture content mean value is 58%, rice straw moisture content mean value is 74%, maize straw moisture content mean value is 65%, cotton stalk moisture content mean value is 53%, various moisture content of straws 15% left and right that can on average decline within the 15 day time of purchase, but while delivering to factory, the average moisture content of stalk is still very high, reach 45～55% left and right, how to reduce and control the moisture content of stalk? how to prevent that stalk corruption from going mouldy? these factors become take agricultural crop straw and manufactures in Wood-based Panel Production and an important link as raw material, stalk raw material are preserved quality, directly have influence on the quality of artificial board of straw.In addition, the artificial board of straw enterprise of existing China, due to stalk raw material deposit is not handled well, in the making sheet in later stage is produced, the quality that produces artificial board of straw is unstable, especially the artificial board of straw testing requirement of outlet is strict, find go mouldy, the rotten carbonization of stalk makes product physical property unstable, eaten many losing.Therefore, how to make the without putrefaction of stalk raw material, do not go mouldy and energy longer-term storage, become the thorny difficult problem that artificial board of straw manufacturing enterprise faces.
Summary of the invention
The object of this invention is to provide a kind of method of artificial stalk board raw material being carried out to preliminary treatment and longer-term storage.
For achieving the above object, artificial stalk board pre-treatment of raw material of the present invention and deposit method comprise the following steps and condition:
(1) rubbing silk shears: the fresh straw that bailing transportation is come unpacks, adopt a large-scale equipment of rubbing, fresh straw is drawn and splits and cut into 2～12cm length stalk fibre silk, the secondary operations of carrying out that surpasses 12cm length, according to factory's whole year production stalk storage capacity configuration wire kneading machine, work in 24 hours, 50,000 tons of stalks will machine in 20 ~ 30 days.This method rub a step degraded stalk surface wax coat and organosilicon, for later stage making sheet, widened the kind with glue, saved resin added, natural furfural material trace formaldehyde content in the stalk of simultaneously having degraded.
(2) spray Antisepticize and mildew preventive: Antisepticize and mildew preventive forms by 5 ‰ dilution proportion with clear water by eating anticorrosive mildewproof antistaling agent dehydro sodium acetate (D.H.A), and to the stalk through rubbing after a shear treatment, sprays Antisepticize and mildew preventive according to the ratio of stalk weight 2%.Injection method can adopt artificial air gun to spray, and also can adopt continuous stirring discharger, and spray gun sprays automatically according to stalk flow.Edible anticorrosive mildewproof antistaling agent dehydro sodium acetate (D.H.A) is broad-spectrum preservative, have the effect of very strong inhibition saccharomycete, mould and Bacterial Development, dehydro sodium acetate (D.H.A) is that a kind of safety food of using of FAO (Food and Agriculture Organization of the United Nation) and World Health Organization approval is anticorrosion, mildew-resistant, antistaling disinfectant.Nontoxic to human body.In addition, dehydro sodium acetate (D.H.A) is to light and thermally stable, can high temperature resistant 200 ℃, and in making sheet production technology, high temperature hot pressing plate all cannot destroy its anticorrosive mildewproof, fresh-keeping function, the feature such as long shelf-life after product is used.
(3) dry: sprayed in Antisepticize and mildew preventive stalk fibre silk employing conveyer belt input stalk drying plant and carry out drying and processing, the stalk Antisepticize and mildew preventive that drying and processing is crossed all sucks in stalk fibre, and the moisture control of stalk is 13 ~ 15%.Drying plant is long barrel shape, and diameter is at 3M, continuous feeding and discharging, speed with rub an equipment and substantially equate.
(4) compression bundling, stacking storage: the stalk after drying and processing is compressed to bundling, be often bundled in 500kg～800kg left and right, and the stalk after compression bundling is piled up regularly in factory building, reserve ventilating duct, annual for factory.
Technical scheme idiographic flow of the present invention is as follows:
Raw material straw collecting bundling enters factory---unpacks that---large-scale wire kneading machine is rubbed crushing straw, and---spraying Antisepticize and mildew preventive stirs---delivers in large-scale baker that---spiral discharging---compression bundling---is stacked storage.
Advantage of the present invention is:
1, in the inventive method, wire kneading machine has been rubbed quick short steps rapid drawdown solution stalk surface wax coat and organosilicon, for later stage making sheet is except being used MDI glue, had both widened other formaldehydeless kind with glue, also saved resin added, natural furfural material trace formaldehyde content in the stalk of simultaneously also having degraded.
2,, through the artificial stalk board raw material of the inventive method preliminary treatment and deposit, within 1 year or two years, that lignin, the cellulose in various stalk raw material remains is fresh, without putrefaction, do not go mouldy.The anticorrosive mildewproof antistaling agent dehydro sodium acetate D.H.A product using can be high temperature resistant, makes the every physical index of stalk board product of producing reach optimum efficiency, and anticorrosive mildewproof, fresh-keeping function remain in product muchly simultaneously.
3, the inventive method is simple to the preliminary treatment of agricultural crop straw, and treatment effeciency is high, and energy consumption is also lower, can make a large amount of agricultural crop straws after focusing in the short time, prevent to rot to go mouldy, keep the longitudinal 50MPa tensile strength of stalk, turn waste into wealth, increased the added value of stalk.
The specific embodiment
embodiment mono-:
The present embodiment carries out preliminary treatment and deposit to Wheat Straw.
The fresh straw that bailing transportation is come unpacks, and interior other material of stalk in inspection bag, as foreign matters such as earth, masonries, adopt high-power wire kneading machine that fresh Wheat Straw is drawn and split, and cut into 2～12cm length fiber silk, for surpassing 12cm length Wheat Straw, carry out secondary and draw and split and shearing.Rub silk and draw split processing degradation Wheat Straw surface wax coat and organosilicon, for later stage making sheet, widened the kind with glue, saved resin added, natural furfural material trace formaldehyde content in the Wheat Straw of simultaneously having degraded.Because Wheat Straw moisture is larger, fresh Wheat Straw toughness is also relatively good, so rub at Wheat Straw the ashes that when work silk produce, can not surpass 3%, the health of the clean and employee's health of favourable working environment.
In high-power wire kneading machine gas blowout discharging, the wheat straw fibre of rubbing after silk is sprayed to Antisepticize and mildew preventive, to spray Antisepticize and mildew preventive be to be formed according to 5 ‰ dilution proportion by edible anticorrosive mildewproof antistaling agent dehydro sodium acetate (D.H.A) and clear water, the consumption of Antisepticize and mildew preventive is 2% of Wheat Straw weight, and adopt discharging limit spray regime while stirring, Antisepticize and mildew preventive is contacted fully with Wheat Straw.The wheat straw fibre that sprayed Antisepticize and mildew preventive is sent into diameter 3M by conveyer belt, in long tubular heavy caliber rotator type dryer, carry out drying and processing, the moisture control of Wheat Straw is 13 ~ 15%, in drying and processing process, spray Antisepticize and mildew preventive and all suck in wheat straw fibre, Antisepticize and mildew preventive fully engages with Wheat Straw, is the key link that the inventive method realizes Expected Results.
Wheat Straw after drying and processing is compressed to bundling, is often bundled in about 600kg, and by the stalk block pattern row pattern after compression bundling in factory building, reserve ventilating duct, the artificial Wheat Straw plate of Ke Gong factory whole year production is used.
Artificial Wheat Straw plate raw material through the preliminary treatment of the present embodiment method and deposit, within 1 year or two years, that lignin in Wheat Straw raw material, cellulose remain is fresh, without putrefaction, do not go mouldy, thereby every physical index of the Wheat Straw plate product that assurance is produced reaches optimum efficiency, anticorrosive mildewproof, fresh-keeping function can also remain in product muchly simultaneously.
embodiment bis-:
The present embodiment is for to carry out preliminary treatment and deposit to rice straw.
Rice straw moisture is than Wheat Straw many 1/3, the rice straw that moisture is large is stacked the inner easily heating of body, fever time grown will accelerate to go mouldy rotten, so, when rice straw enters factory, rice straw is stacked monomer can not be too large, the clear and crisp days of autumn in autumn has the period of the sun many, should adopt artificial or forklift to ted rice straw, to reduce moisture in rice straw, shorten in addition rice straw and enter factory to rice straw is carried out to the pretreated time, to guarantee that every physical index of rice straw plate product reaches optimum efficiency.
The present embodiment preliminary treatment is identical with embodiment mono-with deposit method step condition, at this repeated description not.
Claims (2)
1. the raw-material preliminary treatment of artificial stalk board and deposit method, is characterized in that: the method comprises the following steps and condition:
(1) rubbing silk shears: the fresh straw that bundling transportation is come unpacks, adopt a large-scale equipment of rubbing, fresh straw is drawn and splits and cut into 2～12cm length stalk fibre silk, the secondary operations of carrying out that surpasses 12cm length, according to factory's whole year production stalk storage capacity configuration wire kneading machine, work in 24 hours, 50,000 tons of stalks will machine in 20 ~ 30 days;
(2) spray Antisepticize and mildew preventive: Antisepticize and mildew preventive forms by 5 ‰ dilution proportion with clear water by eating anticorrosive mildewproof antistaling agent dehydro sodium acetate (D.H.A), and to the stalk through rubbing after a shear treatment, sprays Antisepticize and mildew preventive according to the ratio of stalk weight 2%;
(3) dry: sprayed in Antisepticize and mildew preventive stalk fibre silk employing conveyer belt input stalk drying plant and carry out drying and processing, the stalk Antisepticize and mildew preventive that drying and processing is crossed all sucks in stalk fibre, the moisture control of stalk is 13 ~ 15%, and 13 ~ 15% moisture content can keep the longitudinal 50MPa tensile strength of stalk;
(4) compression bundling, stacking storage: the stalk after drying and processing is compressed to bundling, be often bundled in 500kg～800kg left and right, and the stalk after compression bundling is piled up regularly in factory building, reserve ventilating duct, annual for factory.
2. the raw-material preliminary treatment of artificial stalk board according to claim 1 and deposit method, it is characterized in that: step (2) is sprayed anticorrosive mildewproof agent method and adopted air gun manually to spray or adopt continuous stirring discharger, and spray gun sprays automatically according to stalk flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369034.9A CN103711016A (en) | 2012-09-28 | 2012-09-28 | Pretreatment and storage method for artificial straw board raw materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369034.9A CN103711016A (en) | 2012-09-28 | 2012-09-28 | Pretreatment and storage method for artificial straw board raw materials |
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| CN103711016A true CN103711016A (en) | 2014-04-09 |
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| CN201210369034.9A Pending CN103711016A (en) | 2012-09-28 | 2012-09-28 | Pretreatment and storage method for artificial straw board raw materials |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856378A (en) * | 2016-04-09 | 2016-08-17 | 万华生态板业股份有限公司 | Use method of mildew preventive in straw board production |
| CN106079013A (en) * | 2016-06-25 | 2016-11-09 | 万华生态板业股份有限公司 | A kind of ecological stalk-shaving board sterilization technique based on chlorine dioxide |
| CN113875889A (en) * | 2020-07-01 | 2022-01-04 | 阜阳市宏桥秸秆科技有限公司 | Uniform glue applying technology after straw filament rolling |
-
2012
- 2012-09-28 CN CN201210369034.9A patent/CN103711016A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856378A (en) * | 2016-04-09 | 2016-08-17 | 万华生态板业股份有限公司 | Use method of mildew preventive in straw board production |
| CN106079013A (en) * | 2016-06-25 | 2016-11-09 | 万华生态板业股份有限公司 | A kind of ecological stalk-shaving board sterilization technique based on chlorine dioxide |
| CN113875889A (en) * | 2020-07-01 | 2022-01-04 | 阜阳市宏桥秸秆科技有限公司 | Uniform glue applying technology after straw filament rolling |
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Application publication date: 20140409 |