CN117188192B - A reed biomass pretreatment method and industrial application of related products - Google Patents
A reed biomass pretreatment method and industrial application of related productsInfo
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- CN117188192B CN117188192B CN202311145325.4A CN202311145325A CN117188192B CN 117188192 B CN117188192 B CN 117188192B CN 202311145325 A CN202311145325 A CN 202311145325A CN 117188192 B CN117188192 B CN 117188192B
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Abstract
The invention relates to the technical field of gramineous plant treatment, and discloses a triarrhena biomass pretreatment method and an application of related products in industry. The triarrhena is one or more of triarrhena and reed, triarrhena stems are used as primary raw materials, primary raw materials are obtained through cutting, secondary raw materials are obtained through impurity removal, tertiary raw materials are obtained through stem and leaf separation, quaternary raw materials are obtained through soft silk and pulp removal, and five-level raw materials are obtained through grinding, the impurity content and the water content of the obtained primary-five-level raw materials are reduced along with the level, the value is gradually improved along with the increase of the level of the raw materials, and the primary-five-level raw materials are widely applied to various purposes, so that the utilization rate of the triarrhena is remarkably improved.
Description
Technical Field
The invention relates to the technical field of pretreatment of biomass raw materials, in particular to a pretreatment method of a reed biomass raw material and application of related products in industry.
Background
Wetland generally refers to coastal areas which temporarily or chronically cover low lands with water depth of not more than 2 meters, meadows with more water filled with soil, and coastal areas with water depth of not more than 6 meters at low tide, and comprises various salty water fresh water marshes, wet meadows, lakes, rivers, flood plain, estuary delta, peat lands, lake and sea beaches, river side depressions or flood lands, wet grasslands and the like. The area of chinese wetland was counted to be about 5,635 ten thousand hectares, accounting for 4% of the global wetland area. The wetland plants are various, and play an important role in regulating climate, preserving water and soil, purifying water quality and providing ecological service.
The triarrhena and the reed are two common dominant species of the wetland, are collectively called triarrhena and are tall grass capable of providing high-quality cellulose biomass raw materials, and are highly similar in appearance, namely, the triarrhena and the reed are generally 4-7m in height, developed in underground stems, scattered and upright in the overground stems, multiple branches at 1/3 of the top end and fallen leaves at 2/3 of the base part. The leaf is in the shape of a needle, the main pulse of triarrhena is obvious, and the reed has no obvious main pulse. The weather periods of the triarrhena and the reed are highly consistent, wherein the triarrhena and the reed bud 2 months each year, the plant is up to about 4m in 6 months, flowers are opened in 9 months, the flowering period is about 1 month, and the overground stems begin to be withered and yellow in 11 months. The water content of the overground stem and leaf after the triarrhena and reed naturally wither is lower than 20 percent, and the method is suitable for mechanical harvesting, packing and transferring. The triarrhena has the characteristics of fast growth, high yield, multiple years, disease and pest resistance, easiness in harvesting, easiness in propagation and the like, and the biomass quality is excellent, and is mainly composed of three components of cellulose, hemicellulose and lignin, the sum of the three components can reach 90%, and only a very small amount of ash is contained, so that the triarrhena is an excellent lignocellulosic biomass raw material. The biomass can be used as a high-quality papermaking raw material, also can be used as an excellent bio-based raw material, and can be used for preparing various products with high added value, such as xylooligosaccharide, nanocellulose, hard carbon cathode, bioplastic, bio-resin and the like.
The current harvesting mode of the triarrhena is mainly mechanical harvesting and bundling, and the triarrhena straw obtained by harvesting has a large amount of silt and other impurities in a lake area although the harvesting speed is high and the harvesting efficiency is high. If the method is directly used in high value added product production lines such as processing and biorefinery, the cleanliness and quality safety of the products are necessarily affected. The xylooligosaccharide from triarrhena is a functional substance (prebiotic) used as a food additive for human and a feed additive for animals, and has very high requirements on the cleanliness and the safety. And the base of the stem of the triarrhena longifolia growing on the beach wetland is often stuck with a lot of sediment due to the influence of water fluctuation, and the cleaning treatment is necessary. In addition, three major components of cellulose, hemicellulose and lignin in the triarrhena yedoensis biomass raw material mainly come from stems, and the three major components in inflorescences and leaves are relatively low. Therefore, whether the stems and leaves of triarrhena are separated in the pre-treatment stage or not, and whether impurities such as silt and dirt attached to the base of the triarrhena are removed smoothly when the triarrhena is harvested becomes a key step for affecting the quality of biomass raw materials.
The prior patent with the Chinese application number 202110123236.4 discloses a preparation process of color paste for textile, and discloses a pretreatment process of removing impurities from wheat straw, rice straw, pine, waste paper, reed or bamboo, cleaning, crushing, grinding and stirring to prepare pulp, but the whole process only needs to meet the industrial requirement of pulping, and the water content and impurity content of the obtained raw materials cannot meet the requirement of more refined production raw materials.
Disclosure of Invention
According to the situation that the prior art lacks in the treatment technology of the wetland grasses such as triarrhena reeds and the like and the treatment effect of the prior art is poor, the invention provides the pretreatment method for improving the utilization rate of the triarrhena reeds, the produced first-grade to fifth-grade raw materials can meet the requirements of various industrial applications, and the invention also provides the product produced by the pretreatment method for improving the utilization rate of the triarrhena reeds, and can meet the requirements of various industrial applications.
The invention is realized by the following technical scheme:
A pretreatment method for improving the utilization rate of triarrhena yedoensis is characterized in that triarrhena yedoensis is one or more of triarrhena yedoensis and reed, triarrhena yedoensis stems are used as primary raw materials, primary raw materials are cut off to obtain secondary raw materials, impurities are removed to obtain tertiary raw materials, stems and leaves are separated to obtain quaternary raw materials, soft threads are removed to obtain quaternary raw materials, and five-stage raw materials are ground, wherein the primary raw materials have a impurity content of less than or equal to 15%, a water content of less than or equal to 22%, the primary raw materials have a impurity content of less than or equal to 10%, a water content of less than or equal to 18%, the secondary raw materials have a impurity content of less than or equal to 7%, a water content of less than or equal to 18%, the tertiary raw materials have a impurity content of less than or equal to 5%, a water content of less than or equal to 14%, the quaternary raw materials have a impurity content of less than or equal to 3%, a water content of less than or equal to 10%, and five-stage raw materials have a impurity content of less than or equal to 1% and a water content of less than or equal to 6%.
Preferably, the method comprises the following steps:
(1) Cutting, namely unpacking and dispersing the primary raw materials which are collected and packaged and then conveyed to a cutting chamber, and mechanically cutting into segments with similar sizes to obtain the primary raw materials;
(2) The first-level raw materials are conveyed to a purifying chamber, the soil is centrifugally separated, and the second-level raw materials are obtained through separation;
(3) And screening, namely conveying the secondary raw materials to a stem and leaf separation chamber again, and arranging a hammer crushing device and a cyclone separator in the separation chamber, wherein the secondary raw materials are separated and collected on blades through the cyclone separator, so that the tertiary raw materials are obtained.
(4) And the soft yarn is conveyed to a soft yarn chamber after the three-level raw materials are recovered, and a kneading mechanism and a flattening yarn extruding mechanism are arranged in the soft yarn chamber, so that the four-level raw materials are obtained by repeatedly kneading the three-level raw materials.
(5) Grinding, namely recycling the four-stage raw materials, conveying the four-stage raw materials to a grinding chamber, arranging a grinding instrument and a screen in the grinding chamber, grinding to obtain powder, and passing through the screen to obtain the five-stage raw materials.
Preferably, the structure of the cutting chamber sequentially comprises a first feeding hole, a conveying device, an upper feeding roller, a lower feeding roller, a fixed knife, a cutting roller, a motor for controlling the cutting roller, a first discharging hole and a frame along with the conveying path of the primary raw material.
Preferably, the structure of the purifying chamber sequentially comprises a second feeding hole, a material climbing machine, a second discharging hole and a material collecting tank along with the first-level raw material conveying path, and an engine is arranged below the material climbing machine and connected with an air outlet.
Preferably, the structure of separation chamber is from top to bottom including feed inlet three and connect return air inlet, feeding picture peg, the tup in three sides of feed inlet in proper order along with second grade raw materials delivery path, and tup one end is equipped with the belt pulley, and the other end is equipped with keeps off the material stick, keeps off material stick and keeps away from tup one side and be equipped with the fan blade, is equipped with fan housing outside the fan blade, and the tup below is equipped with inside lining, casing and frame from last to being equipped with in proper order down.
Preferably, the structure of the flexible wire chamber comprises a feeding mechanism, the tail end of the feeding mechanism is connected with a flattening wire extruding mechanism, one end of the flattening wire extruding mechanism, which is far away from the feeding mechanism, is connected with a rubbing mechanism, and the lower parts of the flattening wire extruding mechanism and the rubbing mechanism are connected with a power and transmission system and further comprise a frame for supporting and connecting.
Preferably, the structure of the grinding chamber sequentially comprises a baffle, a filtering device, a grinding groove, a discharging cover and a discharging pipe along with a four-stage raw material conveying path from top to bottom, wherein the filtering device comprises a filter screen and a filter plate, the grinding equipment further comprises a grinding power device, the grinding power device comprises a vibrator penetrating through the middle of the grinding groove and the filtering device from top to bottom, a motor is arranged below the vibrator, a cooling fan and a damping spring are arranged below the motor, and the grinding power device is stably positioned with the frame by fixing bolts.
The application of the primary raw material prepared by the combined treatment method for improving the utilization rate of the triarrhena is applied to the direct fuel.
The application of the secondary raw material prepared by the combined treatment method for improving the utilization rate of the triarrhena is used for papermaking raw materials.
The application of the three-level raw material prepared by the pretreatment method for improving the utilization rate of the triarrhena yedoensis to the compressed particle raw material is disclosed.
The application of the four-level raw material prepared by the pretreatment method for improving the utilization rate of the triarrhena yedoensis to the biorefinery raw material.
The application of the five-grade raw material prepared by the pretreatment method for improving the utilization rate of the triarrhena yedoensis to the degradable plastic products.
The invention has the beneficial effects that:
(1) According to the multistage treatment scheme, the water content and the impurity content of each stage are reduced successively, the value of the obtained primary-grade to five-grade raw materials is gradually improved along with the increase of the grade of the raw materials, the multistage treatment scheme can be directly applied to various aspects of industry, and the utilization rate is remarkably improved.
(2) The invention adopts professional treatment equipment for each stage of treatment, can effectively solve the problems of large viscosity and difficult treatment of the ash soil adhered after mechanical harvesting of the triarrhena, and has high cutting and grinding efficiency.
(3) The products obtained by each stage of treatment of the invention have different utilization ways, the triarrhena and the mixed ash are fully separated, the grass raw material is fully utilized, the raw material is not easy to waste, the utilization value of the raw material is improved to the maximum extent, the cleaning and the heterocyclic ring removal are avoided, and the energy consumption, the water consumption and the labor cost are greatly reduced.
(4) The multistage treatment scheme of the invention has high efficiency, high product value and wide application range, and is beneficial to industrial popularization.
Drawings
Fig. 1 is a process flow diagram.
FIG. 2 is a diagram showing the morphology of different grades of raw materials, A primary raw material, B primary raw material, C secondary raw material, D tertiary raw material, E quaternary raw material, F penta-grade raw material (20 mesh), G penta-grade raw material (60 mesh), and H penta-grade raw material (100 mesh).
FIG. 3 is a comparative bar graph of characterization of different grades of feedstock.
FIG. 4 is a bar graph comparing chemical compositions of different grades of feedstock.
Fig. 5 is a schematic view of the structure of the cutting chamber.
FIG. 6 is a schematic view of the structure of the clean room.
Fig. 7 is a schematic view of the structure of the separation chamber.
Fig. 8 is a schematic view of a flexible wire chamber structure.
Fig. 9 is a schematic view of the structure of the polishing chamber.
5.1-Conveying device, 5.2-upper feeding roller, 5.3-shredding roller, 5.4-motor, 5.5-fixed knife, 5.6-frame, 5.7-lower feeding roller, 5.8-first discharge port and 5.9-first feed port;
6.1-second feed inlet, 6.2-second discharge outlet, 6.3-material, 6.4-engine, 6.5-air outlet, 6.6-material collecting tank and 6.7-material climbing machine;
7.1-belt pulley, 7.2-hammer, 7.3-feeding plugboard, 7.4-material baffle rod, 7.5-fan blade, 7.6-frame, 7.7-bearing seat, 7.8-feeding inlet III, 7.9-return air inlet, 7.10-fan shell, 7.11-liner and 7.12-shell;
8.1-feeding mechanism, 8.2-power and transmission system, 8.3-kneading mechanism, 8.4-flattening and extruding mechanism and 8.5-frame;
9.1-baffle plates, 9.2-vibrator, 9.3-discharging cover, 9.4-filter plate, 9.5-grinding groove, 9.6-discharging pipe, 9.7-damping spring, 9.8-motor, 9.9-fixing bolt, 9.10-cooling fan, 9.11-frame and 9.12-filter screen.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following examples, it should be understood that the specific examples described herein are merely illustrative of the present invention and are not intended to limit the present invention, all means used in the examples are conventional in the art unless otherwise specified, the terms "comprising," "including" or any other variation thereof are intended to cover non-exclusive inclusion, for example, the compositions, steps, methods, articles or apparatuses comprising the listed elements are not necessarily limited to only those elements, but may include other elements not explicitly listed or inherent to such compositions, steps, methods, articles or apparatuses, and further, the technical features referred to in the various embodiments of the present invention described below may be combined with each other so long as they do not constitute a conflict with each other, and the experimental raw materials used in the examples of the present invention and comparative examples are commercially available products.
Example 1:
a pretreatment method for improving the utilization rate of triarrhena reeds comprises the following steps:
Step (1) feeding the triarrhena straw in the scattered bags to a feeder, and feeding the triarrhena straw into a cutting chamber along with a conveyor belt to carry out mechanical cutting, and uniformly cutting into small fragments with the average size of about 10 cm;
The small-segment raw materials after the cutting are automatically transmitted to a purifying room, and impurities such as sediment, broken soil blocks, lake area ground humus and the like are removed in the purifying room;
the purified raw materials are transferred to a separation chamber again for further crushing and stem and leaf separation, the average size of the raw materials is about 5mm, and parts with relatively light mass and easy falling off such as leaves, inflorescences and the like on triarrhena longifolia are separated;
Step (4), the raw materials from the separation chamber are transmitted to a soft silk chamber for mechanical kneading, and the marrow of the inner wall and the leaf sheath of the joint part of the leaf and the stem node are removed by mechanical force;
and (5) finally conveying the raw materials from the flexible wire chamber to a grinding chamber, grinding the raw materials into powder by a ball mill, wherein the particle size of the powder is adjustable, the particle size of the general output particles is 20-100 meshes according to the needs of users, a 20-mesh screen is selected in the example, and the diameter of triarrhena fine powder is 0.5-0.8mm after measurement.
Example 2:
a pretreatment method for improving the utilization rate of triarrhena reeds comprises the following steps:
step (1) feeding the scattered reed straw into a feeder, and feeding the reed straw into a cutting chamber along with a conveyor belt to mechanically cut, so as to uniformly cut the reed straw into small fragments with the average size of about 10 cm;
The small-segment raw materials after the cutting are automatically transmitted to a purifying room, and impurities such as sediment, broken soil blocks, lake area ground humus and the like are removed in the purifying room;
The raw materials purified by the purifying chamber are transferred to the separating chamber again for further crushing and stem and leaf separation, the average size of the raw materials is about 5mm, and parts with relatively light mass and easy falling off such as leaves, inflorescences and the like on reed stems are separated;
Step (4), the raw materials from the separation chamber are transmitted to a soft silk chamber for mechanical kneading, and the marrow of the inner wall and the leaf sheath of the joint part of the leaf and the stem node are removed by mechanical force;
And (5) finally conveying the raw materials from the soft silk chamber to a grinding chamber, grinding the raw materials into powder by a ball mill, wherein the particle size of the powder is adjustable, the particle size of general output particles is 20-100 meshes according to the needs of users, a 40-mesh screen is selected in the example, and the particle size of reed fine powder is 0.4-0.5mm after measurement.
Comparative example 1:
The reed pretreatment method comprises the following steps:
Step (1) feeding the triarrhena straw in the scattered bags to a feeder, and feeding the triarrhena straw into a cutting chamber along with a conveyor belt to carry out mechanical cutting, and uniformly cutting into small fragments with the average size of about 10 cm;
Directly feeding the mixture into a crushing chamber for crushing under the condition of not separating impurities, wherein the main product at a discharge port is 5mm particles, and the main product accounts for about 85 percent, and the other 15 percent is soil, blades and other particle impurities;
and (3) grinding the triarrhena granule mixture (material and impurities) into powder by a grinding instrument, and sieving the powder by a 20-mesh sieve, wherein the oversize product and the afternoon of the sieve contain a certain proportion of impurities and cannot be distinguished, and as a result, the purity of the triarrhena straw material is affected, and the quality of the product at the rear end of the triarrhena straw is unqualified.
TABLE 1 characterization comparison of different grades of raw materials (example 1)
TABLE 2 analysis of the chemical composition of different grades of raw materials (example 1)
Table 3.1 comparative analysis of examples and comparative example 1
Table 3.2 comparative analysis 2 of examples and comparative example 1
Note that the letters represent a comparison of the same chemical composition example with the comparative example, the letters are the same indicating no significant difference (p > 0.05), and the letters are different indicating a significant difference (p < 0.05).
As can be seen from table 1 and fig. 3, different types of raw materials vary significantly in the impurity content, the water content, and the type of particle size. In principle, the lower the value of the 2 indices of the impurity ratio and the water content, the better, in particular the water content is directly related to the quality and the shelf life of the raw material. The size of the particle size of the raw material can be adjusted according to the actual application, and the screen can be replaced as required. The production line using triarrhena raw materials has different utilized triarrhena parts due to the process difference, so the requirements on the raw materials are different. The process route shown in figure 1 is to gradually reduce the particle size and gradually improve the quality of the reed from the primary raw material to the grade 5 raw material, and figure 2 also shows the morphology from the primary raw material to the grade 5 raw material.
The chemical composition represents the quality and use of the biomass. In general, the higher the content of cellulose, hemicellulose and lignin should be, the better, while the lower the ash should be. It can be seen from table 2 and fig. 4 that the chemical composition of the different grades of raw material is significantly different, and the higher the grade of raw material, the higher the content of trimangulin and the lower the ash. The method is characterized in that the utilization value of the triarrhena is gradually improved along with the increase of the grade of the raw materials from the primary raw materials to the five-grade raw materials in a grading utilization mode.
From tables 3.1 and 3.2, it can be seen that the comparison of the comparative example 1 and example 1 of the different treatment methods, the cellulose, hemicellulose and lignin of the primary raw material to the five-stage raw material of example 1 are significantly raised with the rise of the treatment grade, while the ash is significantly lowered with the rise of the treatment grade, the rise of the cellulose, hemicellulose and lignin of the primary raw material to the five-stage raw material of comparative example 1 is significantly slower than that of example 1, and the lowering of the ash is also significantly smaller than that of example 1, so that the effect of the multistage treatment method of the present invention on the refined raw material is significantly better than that of comparative example 1.
As shown in fig. 5, primary materials are subjected to primary treatment, and primary materials are obtained by sequentially passing through a first feed inlet 5.9, a conveying device 5.1, an upper feed roller 5.2, a lower feed roller 5.7, a fixed cutter 5.5, a shredding roller 5.3, a motor 5.4 for controlling the shredding roller 5.3, a first discharge outlet 5.8 and a frame 5.6 which are arranged up and down.
As shown in FIG. 6, the primary raw material is subjected to secondary treatment, and sequentially passes through a second feed inlet 6.1, a material climbing machine 6.7 and a second discharge outlet 6.2 of the purifying chamber, and an engine 6.4 promotes air flow to blow out from an air outlet 6.5 and enter a material collecting tank 6.6 together with the material to obtain the secondary raw material.
As shown in fig. 7, the secondary raw material is subjected to tertiary treatment, and sequentially passes through a third 7.8 feed inlet of the separation chamber until the position of the hammer 7.2 is crushed, the pulley 7.1 rotates to drive the hammer 7.2 and the fan blades 7.5 to operate, and the tertiary raw material is obtained after crushing for enough time.
As shown in fig. 8, the three-stage raw materials are subjected to four-stage treatment, and are sequentially transmitted to a kneading mechanism 8.3 and a flattening and extruding mechanism 8.4 through a feeding mechanism 8.1 of a soft wire chamber, and a power and transmission system 8.2 promotes the soft wire process to obtain the four-stage raw materials.
As shown in fig. 9, the four-stage raw material is subjected to five-stage treatment, and sequentially passes through a baffle plate 9.1 of a grinding chamber, a filtering device, a grinding groove 9.5, a discharge cover and a discharge pipe 9.6, a motor 9.8 controls a vibrator 9.2, heat is dissipated by a heat dissipation fan 9.10, and vibration is damped by a damping spring 9.7, so that the grinding is finished to obtain the five-stage raw material.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (8)
1. A pretreatment method for improving the utilization rate of triarrhena reeds is characterized in that triarrhena reeds are one or more of triarrhena reeds and reed, triarrhena reeds stalks are used as primary raw materials, the primary raw materials are cut off to obtain secondary raw materials, impurities are removed to obtain tertiary raw materials, stem leaves are separated to obtain quaternary raw materials, soft threads are removed to obtain quaternary raw materials, and grinding is conducted to obtain five-stage raw materials, wherein the impurity content of the primary raw materials is less than or equal to 15%, the water content is less than or equal to 22%, the impurity content of the primary raw materials is less than or equal to 10%, the water content is less than or equal to 18%, the impurity content of the secondary raw materials is less than or equal to 7%, the water content is less than or equal to 18%, the impurity content of the tertiary raw materials is less than or equal to 5%, the water content of the quaternary raw materials is less than or equal to 3%, the impurity content of the five-stage raw materials is less than or equal to 1%, and the water content of the five-stage raw materials is less than or equal to 6%.
2. The pretreatment method for improving the utilization rate of reed according to claim 1, comprising the steps of:
(1) Cutting, namely unpacking and dispersing the primary raw materials which are collected and packaged and then conveyed to a cutting chamber, and mechanically cutting into segments with similar sizes to obtain the primary raw materials;
(2) The first-level raw materials are conveyed to a purifying chamber, the soil is centrifugally separated, and the second-level raw materials are obtained through separation;
(3) The secondary raw materials are transferred to a stem and leaf separation chamber again, a hammer crushing device and a cyclone separator are arranged in the separation chamber, and the secondary raw materials are separated and collected on blades through the cyclone separator to obtain the tertiary raw materials;
(4) The soft yarn is characterized in that the three-level raw materials are recycled and then are conveyed to a soft yarn chamber, a kneading mechanism and a flattening yarn extruding mechanism are arranged in the soft yarn chamber, and the four-level raw materials are obtained by repeatedly kneading the three-level raw materials;
(5) Grinding, namely recycling the four-stage raw materials, conveying the four-stage raw materials to a grinding chamber, arranging a grinding instrument and a screen in the grinding chamber, grinding to obtain powder, and passing through the screen to obtain the five-stage raw materials.
3. The pretreatment method for improving the utilization rate of reed according to claim 2, wherein the structure of the cutting chamber sequentially comprises a first feed inlet, a conveying device, an upper feed roller, a lower feed roller, a fixed knife, a chopping roller, a motor for controlling the chopping roller, a first discharge outlet and a frame along with the primary raw material conveying path.
4. The pretreatment method for improving the utilization rate of triarrhena of claim 2, wherein the structure of the purification chamber sequentially comprises a second feed inlet, a second material climbing machine, a second discharge outlet and a material collecting tank along with the first-level raw material conveying path, and an engine is arranged below the material climbing machine and connected with an air outlet.
5. The pretreatment method for improving the utilization rate of the triarrhena reeds according to claim 2, wherein the structure of the separation chamber sequentially comprises a feed inlet III, an air return port connected to one side of the feed inlet III, a feed plugboard and a hammer head along with a secondary raw material conveying path from top to bottom, a belt pulley is arranged at one end of the hammer head, a material blocking rod is arranged at the other end of the hammer head, a fan blade is arranged at one side, away from the hammer head, of the material blocking rod, a fan housing is arranged outside the fan blade, and a lining, a machine shell and a machine frame are sequentially arranged below the hammer head from top to bottom.
6. The pretreatment method for improving the utilization rate of triarrhena reeds according to claim 2, wherein the structure of the flexible filament chamber comprises a feeding mechanism, a flattening filament extruding mechanism is connected to the tail end of the feeding mechanism, a kneading mechanism is connected to one end of the flattening filament extruding mechanism far away from the feeding mechanism, and a power and transmission system is connected to the flattening filament extruding mechanism and the lower part of the kneading mechanism, and the pretreatment method further comprises a frame for supporting and connecting.
7. The pretreatment method for improving the utilization rate of the triarrhena reeds according to claim 2, wherein the structure of the grinding chamber sequentially comprises a baffle, a filtering device, a grinding groove, a discharge cover and a discharge pipe along with a four-stage raw material conveying path from top to bottom, the filtering device comprises a filter screen and a filter plate, the grinding chamber further comprises a grinding power device, the grinding power device comprises a vibrator penetrating through the middle of the grinding groove and the filtering device from top to bottom, a motor is arranged below the vibrator, a cooling fan and a damping spring are arranged below the motor, and the grinding power device is stably positioned with each other by a fixing bolt and a frame.
8. An industrial application of the first-class to fifth-class raw materials prepared by the pretreatment method for improving the utilization rate of the triarrhena yedoensis according to any one of claims 1-7.
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| CN115889396B (en) * | 2023-01-05 | 2023-06-16 | 中国科学院过程工程研究所 | Industrial utilization-based field crop straw grading method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102076862A (en) * | 2008-04-30 | 2011-05-25 | 希乐克公司 | Cellulosic and lignocellulosic material structural materials and methods and systems for making these materials by radiation |
| CN102747633A (en) * | 2012-04-25 | 2012-10-24 | 中国科学院过程工程研究所 | Grading refining high-worth using method based on nonuniformity of plant biomass |
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