CN101864682A - Disassembly system of vegetable fibers - Google Patents
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- CN101864682A CN101864682A CN 201010153802 CN201010153802A CN101864682A CN 101864682 A CN101864682 A CN 101864682A CN 201010153802 CN201010153802 CN 201010153802 CN 201010153802 A CN201010153802 A CN 201010153802A CN 101864682 A CN101864682 A CN 101864682A
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Abstract
The invention a disassembly system of vegetable fibers, which comprises an air accuracy control pressurizing mechanism, a pressurizing cavity for accommodating disassembled vegetable fibers and mixing the disassembled vegetable fibers with the pressure air, a continuous relief switch mechanism for controlling pressure relief, a material collecting barn for collecting structural tissue such as lignin, cellulose, hemicellulose and the like and a hot steam generator or a hot dry wind generating device which is capable of performing accurate temperature rise and softening connection parts such as internal crystalline regions of vegetable straw and the like and reducing the bonding force of straw tissue. The disassembly system is characterized in that the pressurizing cavity is also provided with an overpressure alarming safety device, a control device which is used for detecting time and parameters and is connected with the air accuracy control pressurizing mechanism, the pressurizing cavity and the continuous relief switch mechanism and a continuous feeding mechanism. The control device can set key process parameters capable of influencing the disassembly of the vegetable fibers independently, realize the independent adjustment and control and set any processes according to requirements. In addition, the disassembly system has the characteristics of safety and convenient operation.
Description
Technical field
The present invention relates to a kind of string disassembly system, especially relate to a kind of stalk plant fiber disassembly system that is used for the industrial alcohol preparation.
Background technology
The crop straw burning serious environment pollution brings potential safety hazard for again simultaneously traffic, civil aviaton.In order to solve the problem of China's rural area crop straw burning conscientiously, stalk is become the ethanol energy, not only solve rural area crop straw burning problem, and can bring certain economic benefits for the peasant.
Industrial alcohol is a kind of advanced equipment that is used to handle agricultural wastes straw that development in recent years is got up with disassembling string equipment, it is that stalk utilizes indispensable key equipments such as manufacture alcohol again, this technology starts from the steam explosive-crushing technology of nineteen twenty-six the earliest, being batch process production at that time, mainly is to be used to produce beaver board.Since the seventies in 20th century, this technology also is used to the production of animal feed and extracts from lumber fibre in the industrialization of papermaking wood pulp and speciality chemical formaldehyde.After the eighties, this technology has very big development, and the use field also progressively enlarges, and continuous steam explosive-crushing method production technology and equipment that Canadian Stake Technology company and Quebec, CAN university develop jointly have produced many patents.But this technology is used for low cost, oligosaprobic enzyme process to be produced the stalk cellulose industrial alcohol and also so far and do not realize.This is owing to be subjected to the technical limitations of industrial alcohol with the string device for disassembling for a long time, fail to realize that stalk disassembles application, therefore people have to adopt the transverse tube type continuous steamer of diluted acid method or highly energy-consuming to spurt equipment to produce the industrial alcohol string, can't realize low cost, high yield, the oligosaprobic industrial fibre element of from agricultural wastes straw, producing, produce ethanol, the bio-based butanols, living beings natural gas equal energy source raw material, so to the development of industrial alcohol with the string device for disassembling, be be to break through the technical bottleneck of ethanol, for the development of bioenergy provides advanced equipment to ensure with the string device for disassembling.
Chinese patent 200720187235.1 discloses steam blasting device at a kind of intermittence, and it relates to a kind of steam explosive-crushing technology.Utilize the steam explosive-crushing know-why, fibrous raw material has been carried out sufficient preliminary treatment, for follow-up enzymolysis provides proper raw material.It comprises steam generator, surge tank and steam-explosion jar, and steam exports steam-explosion jar from steam generator to through surge tank, and it also comprises receiving tank, and its material inlet is communicated with the material outlet of steam-explosion jar.This steam blasting device, can be used for solid multi-component material (maize straw, the preliminary treatment of preliminary treatment various plants stalks such as straw), particularly lignocellulosic material, the quick-fried product of its vapour are the semi-finished product in early stage that are taken as the cellulosic ethanol of current optimal liquid alternative fuel.Its weak point is, lacks automation control system, security alerting system and feeding in continuous material system, causes that technology is wayward, safety coefficient is not high and efficient is lower.
Summary of the invention
The purpose of this invention is to provide a kind of string disassembly system, technology was wayward during the solution string was disassembled, safety coefficient is not high and the low problem of efficient.
Main Ingredients and Appearance in the stalk is cellulose, hemicellulose and lignin.Increase temperature its inside of steam to stalk physicochemical change must take place, wherein hydrolysis will take place in the hemicellulose part, and lignin takes place softening, and bond strength will descend between stalk inner transverse fiber, the steam that heats up abrim in the cell hole makes stalk become soft plastic.The industrial alcohol of development is formed with the system of string device for disassembling so, will meet the technical characterictic that stalk is disassembled.
The technical solution adopted for the present invention to solve the technical problems is: a kind of string disassembly system, it comprises that air accurately controls pressing mechanism, holds the switching mechanism of releasing continuously of being disassembled pressurizing chamber, controlled pressure that string and pressure air mix and releasing, the material collection storehouse of collecting structure organizations such as lignin, cellulose, hemicellulose, accurately heat up that coupling part such as straw internal junction crystalline region is taken place is softening, reduce hot steam generator or foehn generating means that the stalk knot of tissue is made a concerted effort; It is characterized in that: also the excess pressure alarm safety device is set at pressurizing chamber; The control device of time and parameter detecting is set and connects air and accurately control pressing mechanism, pressurizing chamber and the switching mechanism of releasing continuously; Feeding in continuous material mechanism also is set.
In the system of string device for disassembling, the pressurizing chamber of stalk pressurized is the key component of device for disassembling, in order to make the pressurization stalk in pressure leak process step-down smoothly suddenly, described pressurizing chamber internal diameter should be consistent with the outlet internal diameter, and pressurizing chamber length is no more than 3 times of its diameter.
The described control device that time and parameter detecting are set; Be the mode of operation that adopts circulation compression pressurization, from beginning, with pan feeding density, left and right sidesing shifting, cock, carry plug, regularly admission, pass vapour pressure release, reset cycle and all under control able to programme, carry out to the pressure release overall process; To influencing the key process parameter that string is disassembled, multiplex (MUX)s such as pressure, temperature, the time parameter of planting can be carried out independent setting; Realize independent adjustment, control, can carry out any technique initialization as required.Determining different plants, as: stalk, crudefiber crop, pipe tobacco, wheat, sunflower seeds peel off etc. that string is disassembled and the optimum efficiency that obtains.
Described pressurizing chamber adopts 2Cr13 to do the pressure pocket material.。
Studies show that the native cellulose fibre macromolecular structure all is the linear backbone; its chain link feature can be identical or essentially identical; these chain links Dan Ji is the surplus base of glucose; be the best raw material of producing industrial alcohol; what its inner big molecule adhesion mainly showed in native cellulose is attraction; rely on interkniting of these adhesions between the big molecule of fiber; form various state of aggregations; form whole fibr tissue; mainly show as two big states at normal temperatures; one class is the crystalline state of marshalling; one class is random arrangement amorphous state; big molecules align is piled up and is just existed this two states simultaneously in the stalk fibre, and promptly some regional area is crystalline state, and other regional areas present amorphous state.Typical pure crystalline material, when disintegrating, to absorb crystallization latent heat and overcome bigger binding energy, therefore in solid phase between the liquid phase, significantly stable knee pointy temperature is arranged, and the amorphous state that the various aggegation attitudes that big molecule is not the such regular proper alignment of crystalline state are amorphous states, in the fiber amorphous areas, big molecules align is relatively more disorderly, piles up more loose, more slit and hole are wherein arranged, density is lower, and the group distance of some big molecular surfaces is bigger, and contact power is less, unsaturated fully, be easy to moisture absorption, and it is lower to show mechanical strength, is out of shape bigger.Amorphous physical characteristic in the stalk fibre tissue, when different temperatures, also can present great difference, this species diversity both shown on the mechanical property, also show (as density, specific heat, dielectric coefficient, refractive index etc.) on other many physical properties, changed rule by it and was divided into essential characteristics such as viscous state, elastomeric state, glassy state.
Because straw is the porous object, between straw inside and fiber, exist many holes, air abrim in the hole, pile up in the fiber at huge fibril, also exist slit and the hole bigger between the huge fibril than huge fibril diameter, connection between the huge fibril is also more relaxed, even the fiber that has mainly connects by other material (as the intercellular substance of multi-cell fiber, as lignin).Therefore, whenever taking root in the fibres, existing the structure of many levels combinations, crystal region wherein and amorphous area not only vary in size, and orientation also is not quite similar, and show as anisotropy.In addition, also exist slit and the hole of many levels from the different size of several dusts, tens dusts, hundreds of dust even several thousand dusts.Thereby the various mechanical properties of fiber all have extraordinary relation with these concrete structures of straw internal fiber, take place softeningly by the coupling parts such as can making straw internal junction crystalline region that heats up, and adhesion reduces, and is convenient to physical mechanics processing.The air of compression can be infiltered between inner slit of straw fibr tissue and the hole through pressurization, be pressed into like this after straw fibr tissue gas inside is surpassing the sudden release of short time of velocity of sound, its energy reaches the intermolecular combination of disassembling the straw fiber, pressure is separated into the fiber that we need in the weakest intensity place, stalk inside, make the whole straw fiber of uniting be separated into the fiber of bobbles shape, and so whole stalk state just is a lignin, cellulose, the separation of tissues such as hemicellulose generates a kind of desirable stalk fibre state, for transforming the important fibrous material that industrial alcohol is used, so sudden release forced air of short time is to disassemble the effective method of straw fiber, but it is extremely short to discharge the forced air time course, can be considered the stalk fibre thermal insulation and disassemble separation, stalk fibre is effectively disassembled separative power Pe and is represented with following formula.
In the formula
The medium amount that expands in the M-T time; V-disassembles the volume of thing; Medium enthalpy difference before and after Δ H-disassembles; T-disassembles the time; φ-disassemble coefficient; α-the disassemble shared ratio of gas in the material;
ρ-the disassemble density of material; On behalf of vapour phase medium, l-high temperature liquid water m-, s-(subscript) disassemble material respectively.
The coefficient φ that disassembles of the saturated vapor in the material gap approaches 1, that is to say that the saturated vapor overwhelming majority in the material expands in quick-fried broken mode.α represents the ratio of gas comprises in the material, and liquid fraction is big, and it is just poor to disassemble effect.Therefore, moisture is bigger to disassembling function influence in the material.Increase along with disassembling pressure, ρ value and Δ H just raise.It is very fast to rise during the enthalpy low pressure of vapour phase, reaches maximum substantially at 2.0MPa, therefore, and non-pressure is high more good more, hypertonia, and the operating time is extremely short, more wayward, the heat enthalpy value of steam is compared much biggerly really under unit volume aqueous water and the uniform temp, but its coefficient of expansion is minimum.The enthalpy difference of this part need be converted into steam and just disassemble effect.Though the energy vacuum flashing because the vaporization resistance is too big, has only a spot of vaporization.Therefore, phi is minimum.And the coefficient of expansion of material is littler, but it produces certain influence to time of disassembling and the loss of drain hole place vapour phase.Though drain hole is more little, more gas conversions of heat into kinetic energy, blowing time lengthening makes more gas run off at drain hole.Therefore, drain hole must have certain proportion.In addition, the specific area of material is more little, and promptly the size of material can reduce the drain hole gas loss more greatly.
We are after whole straw pressurization, its pressurized and discharge the function of time of two states can be again so that to distinguish whole straw be expanded or disassemble, this be because the pressurized stalk in pressure leak process, the pressure of slit and hole is finished pressure release less than moment in official hour in the stalk, its process is that the more minimum supercritical pressure force value of disassembling stalk fibre is smaller, pressure leak process is low than the supercritical pressure value, Here it is the expanded stage of stalk, and expanded not the reaching of stalk left between the stalk fibre, disassemble and be the bobbles shape, by to the bobbles fiber further observation can see in the stalk fibre surface coverage and one deck fragment shape amorphous substance, after washing and ethanol extracting, the stalk fibre surface patches can be dissolved fully, the stalk fibre surface becomes smooth, the fragment that shows the stalk fibre surface dissolution mainly comes from lignin, and Here it is, and our stalk of needs is disassembled state, so state pot life functional equation (2) disassembles in measurement is:
In the formula: τ---inflation and the time constant s that exits, k---adiabatic exponent, water vapour: k=1.33, S---cylinder sealing bore (219mm) sectional area mm2, the volume L of V---gas tank, Ts---source of the gas absolute temperature K
Industrial alcohol pressurizes or pressure release with the string device for disassembling, the velocity of sound district and the subsonic area p that produce, with this two stages time addition, in the formula: p1---initial absolute pressure MPa, p*---critical pressure, generally get p*=0.192MPa, suppose that this model device for disassembling parameter is: V=11L, S=37668mm2 is as Ts=493K (220 ℃), during p1=2.31783MPa (relative pressure 2.2MPa), timeconstant=0.00085233s then, t2=0.0036768s, with the addition of above two parts time, that is: t1+t2=0.005075+0.003677=0.008752s, because two parts are actual in interpenetrating generating process, promptly the process of drawing back at cylinder is being exitted, and venting time cylinder also constantly drawing back, therefore, the actual time T of producing should be: t1≤T≤t1+t2, be 0.005075s≤T≤0.008752s, disassembling the Time Calculation result as can be seen from the aforementioned calculation data is a time period, we are controlled at pressure in the scope accurately in this time period, control the straw fiber degree of disassembling with the pressure release time then, the perfect condition that stalk is disassembled is fully with lignin, cellulose, hemicellulose separates, but in fact be difficult to accomplish, measurement is disassembled straw fiber degree and can only how much be weighed with the fiber yield, stalk fibre is fully disassembled, can be increased fiber and enzyme reaction contact gear ratio surface area, make to transform the amount of alcohol maximization.
Beneficial effect of the present invention: at pressurizing chamber the excess pressure alarm safety device is set owing to adopt; The control device of time and parameter detecting is set and connects air and accurately control pressing mechanism, pressurizing chamber and the switching mechanism of releasing continuously; Feeding in continuous material mechanism also is set.Control device can carry out independent setting to the key process parameter that influences string and disassemble; Realize independent adjustment, control, can carry out any technique initialization as required.And have safety, characteristics easy and simple to handle.
Below with reference to drawings and Examples, the present invention is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is string disassembly system structure block diagram.
The specific embodiment
Embodiment 1, as shown in Figure 1, a kind of string disassembly system, it comprises that air accurately controls pressing mechanism, holds the switching mechanism of releasing continuously of being disassembled pressurizing chamber, controlled pressure that string and pressure air mix and releasing, the material collection storehouse of collecting structure organizations such as lignin, cellulose, hemicellulose, accurately heat up that coupling part such as straw internal junction crystalline region is taken place is softening, reduce hot steam generator or foehn generating means that the stalk knot of tissue is made a concerted effort; It is characterized in that: also the excess pressure alarm safety device is set at pressurizing chamber; The control device of time and parameter detecting is set and connects air and accurately control pressing mechanism, pressurizing chamber and the switching mechanism of releasing continuously; Feeding in continuous material mechanism also is set.
In the system of string device for disassembling, the pressurizing chamber of stalk pressurized is the key component of device for disassembling, in order to make the pressurization stalk in pressure leak process step-down smoothly suddenly, described pressurizing chamber internal diameter should be consistent with the outlet internal diameter, and pressurizing chamber length is no more than 3 times of its diameter.
The described control device that time and parameter detecting are set; Be the mode of operation that adopts circulation compression pressurization, from beginning, with pan feeding density, left and right sidesing shifting, cock, carry plug, regularly admission, pass vapour pressure release, reset cycle and all under control able to programme, carry out to the pressure release overall process; To influencing the key process parameter that string is disassembled, multiplex (MUX)s such as pressure, temperature, the time parameter of planting can be carried out independent setting; Realize independent adjustment, control, can carry out any technique initialization as required.Determining different plants, as: stalk, crudefiber crop, pipe tobacco, wheat, sunflower seeds peel off etc. that string is disassembled and the optimum efficiency that obtains.
Described pressurizing chamber adopts 2Cr13 to do the pressure pocket material.。
This ethanol comprises by the fiber that obtains on the plant seed with the scope of application of string device for disassembling, as kapok etc.; By the fiber that obtains on the fruit, as cocoanut fiber etc.; By the fiber that obtains in the plant haulm bast, as ramie, hemp, bluish dogbane etc.; By the fiber that obtains in the plant haulm sheath shell, as palm hair on the neck etc.; By in the leaves of plants or fiber, as sisal hemp, pineapple fibre etc. and agricultural wastes straw, as wheat straw fiber etc., as industrial crops hybrid giant napier fiber etc.
We disassemble wheat straw, and the wheat straw waste fibre morphology after disassembling is observed.
By wheat straw sample photo shown in the observation, find that wheat straw waste is the bobbles shape or claims the pipe tobacco shape, the caking fibre bundle after being disassembled, stalk is arranged, examine again and find it is the wheat straw knot, illustrate that stalk exists the varying strength zone from root to the stalk head, both are being disassembled in the process than the wheat straw head as the wheat straw knot, its supercritical pressure value can be different, this point can see when being lower than the supercritical pressure value and have the thick completely fibre bundle that is untreated, and illustrating puts into different categories handles stalk becomes the important of various component stalk fibres with certain purity to stalk is refining; The shortening of pressure time will be tieed up during test, and the part raw material can be carried secretly in the stalk fibre after disassembling sometimes; If force value is mentioned when higher, disassembled back wheat straw fiber look and be brown thread, be the brown mud shape sometimes.Illustrate that pressure and high-temperature steam can make the color of stalk fibre change, this and different technical parameters are handled much relations, the pH value correlation maximum of special and starting material, and this illustrates that the chromophore in material is relevant with the pH value, and the pH value is low more, and material is dark more.And chromophoric generation is mainly caused by lignin, also proved at steam under pressure and disassembled not only hydrolysis of hemicellulose stripping in the stalk fibre process, and great changes have also taken place in lignin.
Disassembling of solid straws material must be disassembled equipment with stalk fibre, studies show that for stalk morphological element its content of cellulose is 30%-35%, and hemicellulose level is 25%-30%, and the content of lignin is about 10%.For timber, wherein content of cellulose is 45%-50%, and hemicellulose level is 10%-20%, and the content of lignin is 25%-30%.Except that the three major types component, solid material also contains protein, lipid, ash content, moisture, pectin, low molecular carbohydrate etc.Wherein the content of ashes of stalk is silica more than 60% in the ash content at (content of ashes of straw is up to 15%) more than 5%; The content of ashes of timber is below 1%, and majority is 0.3%-0.5% (to the over dry raw material).
We disassemble the 200g stalk with the equipment that the present invention makes, obtain fiber 56g, half fiber 43g, lignin 41g, other material 70g (containing moisture).The digital proof feasibility of the present invention of experiment.
In the cellulose molecular chain cell wall structures of stalk, cellulose molecular chain ordered aggregation regularly becomes protofibril, further form microfibre by protofibril, microfibre is formed fiber fines, filling hemicellulose between the protofibril, be wrapped in lignin and hemicellulose around the microfibre, and exist chemistry to be connected between lignin and hemicellulose.Cellulose constitutes cellulose skeleton with the microfibre form in cell membrane like this, and lignin and hemicellulose are crosslinked together with covalent, forms three-dimensional frame structure, and microfiber bundle is embedded in stalk material the inside.And in the outside of cell membrane, i.e. intercellular layer between two cells is by lignin and a spot of pectin, two cell contacts together.Like this, cellulose, hemicellulose and lignin are interweaved and form the complicated cell wall structure that is difficult to degrade.
Disassembling in the process at the solid straws material like this, illustrate that adding wet-hot steam makes solid straws material interior detail cell wall structures that physicochemical change will take place, hydrolysis partly takes place in the hemicellulose in its stalk, the softening easily degraded that becomes of lignin, thereby make timber transverse splicing intensity decreases, be full of high steam in the stalk cell hole, it is soft plastic that stalk becomes, in disassembling process during sudden pressure reduction, gas in the hole sharply expands, pressure sharply expands outwardly, its force value reaches certain kind stalk minimum when disassembling power, just the stalk spalling is become tiny fiber bundle-like, realizes that the structural constituent of stalk material is separated, increasing wet-hot steam is that the auxiliary easier quilt of solid straws material is disassembled into cellulose, hemicellulose and lignin three components, solid straws material inside will mainly show following four kinds of technical characterictics:
(1) owing to the synergy of steam and heat, solid straws material inside will produce class acid degradation and thermal degradation, the lower-molecular substance stripping, and the fiber degree of polymerization descends.
(2) because when disassembling the release of process mesohigh steam, the vapours molecule of infiltrated fiber inside was released with the mode of air-flow space high speed moment from stalk material inside, sharply swelling heat steam produces high speed moment and flows, and makes fiber that to a certain extent mechanical breaking take place.This fracture shows as not only that bond fission in the cellulose macromolecule, reduction end group increase, the inner hydrogen bond of cellulose broken bad, also show as the broken bad of the broken evil idea of amorphous region and partially crystallizable district.
(3) the stalk material is disassembled in the process at steam under pressure, owing to form hydrogen bond in each hole of steam infiltrated fiber and with part of hydroxyl on the cellulose molecular chain.But high temperature, high pressure, aqueous conditions can be aggravated broken bad to cellulose inside hydrogen bond again, and the free hydroxyl that makes new advances increases the hydrogen bond in the cellulosic molecule.In the time of the intramolecular hydrogen bond fracture, cellulose is cooled to room temperature rapidly, makes the cellulose supramolecular structure " be freezed ", has only the hydrogen bond reorganization of small part.Make solvent molecule enter the sheet interlayer easily like this, and the solvent that infiltrates further carries out solvation with the cellulose macromolecule chain, and causes the broken bad of residual intramolecular hydrogen bond, has quickened the motion of glucose cyclic group, cause the complete broken bad of other crystalline regions at last, until dissolving fully.
(4) structural rearrangement acts under high temperature, the high pressure, and hydrogen bond is subjected to a certain degree broken bad in the cellulosic molecule, and the mobility of cellulose chain increases, and helps cellulose and changes to ordered structure.Simultaneously, the fracture of cellulose molecular chain makes the easier arrangement again of cellulose chain, and phenomenons such as stiff, sticking connection can take place as untimely extracting stalk fibre the stalk fibre after therefore disassembling once more.
Claims (4)
1. string disassembly system, it comprises that air accurately controls pressing mechanism, holds the switching mechanism of releasing continuously of being disassembled pressurizing chamber, controlled pressure that string and pressure air mix and releasing, the material collection storehouse of collecting structure organizations such as lignin, cellulose, hemicellulose, accurately heat up that coupling part such as straw internal junction crystalline region is taken place is softening, reduce hot steam generator or foehn generating means that the stalk knot of tissue is made a concerted effort; It is characterized in that: also the excess pressure alarm safety device is set at pressurizing chamber; The control device of time and parameter detecting is set and connects air and accurately control pressing mechanism, pressurizing chamber and the switching mechanism of releasing continuously; Feeding in continuous material mechanism also is set.
2. string disassembly system as claimed in claim 1 is characterized in that: described pressurizing chamber internal diameter should be consistent with the outlet internal diameter, and pressurizing chamber length is no more than 3 times of its diameter.
3. string disassembly system as claimed in claim 1 or 2 is characterized in that: the described control device that time and parameter detecting are set; Be the mode of operation that adopts circulation compression pressurization, from beginning, with pan feeding density, left and right sidesing shifting, cock, carry plug, regularly admission, pass vapour pressure release, reset cycle and all under control able to programme, carry out to the pressure release overall process; To influencing the key process parameter that string is disassembled, multiplex (MUX)s such as pressure, temperature, the time parameter of planting can be carried out independent setting; Realize independent adjustment, control, can carry out any technique initialization as required.
4. string disassembly system as claimed in claim 3 is characterized in that: described pressurizing chamber adopts 2Cr13 to do the pressure-bearing material.
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| CN103572630A (en) * | 2012-07-26 | 2014-02-12 | 杨泓 | Method and apparatus for preparing plant fiber from straw |
| 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 |
| CN108103821A (en) * | 2017-12-28 | 2018-06-01 | 邱德平 | A kind of novel straw water scrubber |
| CN109554791A (en) * | 2018-11-28 | 2019-04-02 | 际华三五四二纺织有限公司 | A method of cellulose fibre flax high-count yarn is produced with cotton spinning equipment |
| CN109594248A (en) * | 2018-11-28 | 2019-04-09 | 际华三五四二纺织有限公司 | A kind of pure preparation method for spinning the regenerated celulose fibre carded sliver |
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| CN103572630A (en) * | 2012-07-26 | 2014-02-12 | 杨泓 | Method and apparatus for preparing plant fiber from straw |
| CN103572630B (en) * | 2012-07-26 | 2016-03-30 | 杨泓 | A kind of stalk produces the method and apparatus of string |
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| CN111801447A (en) * | 2017-12-19 | 2020-10-20 | 大麻种植生产合作社 | Method for refining plant fiber by steam explosion |
| CN108103821A (en) * | 2017-12-28 | 2018-06-01 | 邱德平 | A kind of novel straw water scrubber |
| CN109554791A (en) * | 2018-11-28 | 2019-04-02 | 际华三五四二纺织有限公司 | A method of cellulose fibre flax high-count yarn is produced with cotton spinning equipment |
| CN109594248A (en) * | 2018-11-28 | 2019-04-09 | 际华三五四二纺织有限公司 | A kind of pure preparation method for spinning the regenerated celulose fibre carded sliver |
| CN109554791B (en) * | 2018-11-28 | 2021-06-18 | 际华三五四二纺织有限公司 | Method for producing cellulose fiber flax high count yarn by cotton spinning equipment |
| CN109594248B (en) * | 2018-11-28 | 2021-07-06 | 际华三五四二纺织有限公司 | Preparation method of pure-spinning regenerated cellulose fiber raw sliver |
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