A fiber separation apparatus for a plant material

Abstract

The application discloses a plant raw material fiber separation device; the plant raw material fiber separation device comprises a heating tank, a fluidization tank and first and second pipelines, the first and second pipelines are connected with different areas of the side wall of the fluidization tank, the first pipeline comprises a first subpart, the second pipeline comprises a second subpart, the extension line of the central axis of the first subpart intersects or is parallel to the extension line of the central axis of the second subpart; the extension line of the central axis of the first subpart connected with the fluidization tank and the extension line of the central axis of the second subpart are made to intersect or be parallel to each other, so that the plant raw material entering the fluidization tank through the first and second subparts can collide in the fluidization tank to perform first crushing on the plant raw material, meanwhile, the plant raw material is guided out of the fluidization tank, and the pressure difference between the fluidization tank and the external atmospheric pressure can perform second crushing on the plant raw material, thereby improving the precision of fiber separation of the plant raw material.

Description

Technical Field

[0001] The present application relates to the field of biomanufacturing, and in particular to a fiber separation device for plant raw materials. Background Art

[0002] For the raw materials currently used for fiber production, such as woody plant materials such as bamboo, straw or wheat straw, high-temperature steam is usually used to quickly soften the raw materials, combined with the pressure difference between the inside and outside of the equipment, or physical methods such as mechanical crushing to crush the raw materials to obtain fiber raw materials. However, the above-mentioned processing methods have the technical problem of incomplete separation of fibers in plant raw materials. Summary of the Invention

[0003] The present application provides a fiber separation device for plant raw materials to improve the current technical problem of insufficient precision in fiber separation of woody plant raw materials.

[0004] To solve the above problem, the technical solution provided by this application is as follows:

[0005] The present application proposes a fiber separation device for plant raw materials, which comprises:

[0006] a heating tank containing plant material and high-pressure gas;

[0007] A fluidizing tank is provided on one side of the heating tank;

[0008] a first pipe and a second pipe, wherein ends of the first pipe and the second pipe away from the fluidizing tank are both connected to the outlet of the heating tank, and ends of the first pipe and the second pipe away from the heating tank are connected to different areas of the side wall of the fluidizing tank;

[0009] The first pipeline includes a first subsection close to the fluidizing tank, the second pipeline includes a second subsection close to the fluidizing tank, and the extension line of the central axis of the first subsection and the extension line of the central axis of the second subsection intersect or are parallel.

[0010] In the plant material fiber separation device of the present application, the first pipe and the second pipe are symmetrically arranged, the extension line of the central axis of the first sub-section and the extension line of the central axis of the second sub-section coincide with each other, and both intersect with the central axis of the fluidizing tank;

[0011] Alternatively, both the first sub-portion and the second sub-portion are tangent to the side wall of the fluidizing tank.

[0012] In the plant material fiber separation device of the present application, the outlet section of the fluidizing tank is a Rafale nozzle.

[0013] In the plant material fiber separation device of the present application, the plant material fiber separation device further comprises:

[0014] A vaporizer is disposed between the heating tank and the fluidizing tank, wherein ends of the first pipe and the second pipe away from the fluidizing tank are both connected to an outlet of the vaporizer;

[0015] a third pipe connecting the vaporizer and the heating tank, one end of the third pipe being connected to the heating outlet section of the heating tank, and the other end of the third pipe being connected to the side wall of the vaporizer;

[0016] The third pipeline includes a third sub-portion close to the vaporizer, and an extension line of a central axis of the third sub-portion is parallel to a tangent line of a connection point between the third sub-portion and the side wall of the vaporizer.

[0017] In the plant material fiber separation device of the present application, the plant material fiber separation device further comprises:

[0018] Exhaust valve;

[0019] A fourth pipeline, one end of which is communicated with the third pipeline, and the other end of which is connected to the exhaust valve.

[0020] In the plant material fiber separation device of the present application, the heating tank, the vaporization tank and the fluidization tank are spaced apart in a direction perpendicular to a horizontal plane.

[0021] In the plant material fiber separation device of the present application, the vaporizer includes a vaporizer outlet section arranged close to the fluidizer, and the cross-sectional area of ​​the vaporizer outlet section is smaller than the cross-sectional area of ​​the vaporizer at one end away from the fluidizer.

[0022] In the plant material fiber separation device of the present application, the cross-sectional area of ​​the vaporization outlet section is smaller than the throat cross-sectional area of ​​the fluidizing tank.

[0023] In the plant material fiber separation device of the present application, in a direction perpendicular to the horizontal plane, the length of the vaporization tank is greater than the length of the fluidization tank.

[0024] In the plant material fiber separation device of the present application, the pressure in the heating tank is greater than the pressure in the vaporization tank, and the pressure in the vaporization tank is greater than the pressure in the fluidization tank.

[0025] The present application makes the extension line of the central axis of the first sub-section connected to the fluidized tank and the extension line of the central axis of the second sub-section intersect or intersect, so that the raw materials entering the fluidized tank through the first sub-section and the second sub-section can collide in the fluidized tank to perform the first crushing of the raw materials. At the same time, the raw materials are discharged through the fluidized tank, and the pressure difference between the fluidized tank and the external atmospheric pressure can perform the second crushing of the raw materials, thereby improving the technical problem of insufficient precision in raw material crushing of current fiber separation equipment for plant raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0027] Figure 1 This is a schematic diagram of the first structure of the plant material fiber separation device of the present application;

[0028] Figure 2 for Figure 1 The first type of cross-section of the middle section AA;

[0029] Figure 3 for Figure 1 The second cross-sectional view of the middle section AA;

[0030] Figure 4 for Figure 1 The third cross-sectional view of the middle section AA;

[0031] Figure 5 This is a structural diagram of the outlet section of the fluidizing tank in the plant material fiber separation equipment of the present application;

[0032] Figure 6 This is a schematic diagram of the second structure of the plant material fiber separation device of the present application;

[0033] Figure 7 for Figure 6 Cross-section view of the middle section BB. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0035] See also Figures 1 to 5 The present application proposes a fiber separation device 100 for plant raw materials, including a heating tank 10, a fluidizing tank 20 arranged on one side of the heating tank 10, and a first pipe 410 and a second pipe 420.

[0036] In this embodiment, plant raw materials and high-pressure gas are provided in the heating tank 10, and the first pipe 410 and the second pipe 420 are both connected to the heating tank 10 and the fluidized bed tank 20, and are used to transfer the plant raw materials and high-pressure gas in the heating tank 10 to the fluidized bed tank 20.

[0037] In this embodiment, the ends of the first pipe 410 and the second pipe 420 away from the fluidizing tank 20 are both connected to the outlet of the heating tank 10, and the ends of the first pipe 410 and the second pipe 420 away from the heating tank 10 are connected to different areas of the side wall of the fluidizing tank 20.

[0038] In this embodiment, the first pipe 410 includes a first sub-portion 410a close to the fluidizing tank 20, and the second pipe 420 includes a second sub-portion 420a close to the fluidizing tank 20, and the extension line of the central axis of the first sub-portion 410a and the extension line of the central axis of the second sub-portion 420a intersect.

[0039] The current fiber separation equipment 100 for plant raw materials usually only uses high-temperature steam to soften the wood raw materials, and combines physical methods such as pressure difference inside and outside the equipment or mechanical crushing to crush the raw materials to obtain fiber raw materials, but the above processing methods usually have the technical problem of incomplete crushing of the raw materials.

[0040] The present application makes the extension line of the central axis of the first sub-section 410a connected to the fluidized tank 20 and the extension line of the central axis of the second sub-section 420a intersect or be parallel, so that the raw materials entering the fluidized tank 20 through the first sub-section 410a and the second sub-section 420a can collide in the fluidized tank 20 to perform the first crushing of the raw materials. At the same time, the raw materials are discharged through the fluidized tank 20, and the pressure difference between the fluidized tank 20 and the external atmospheric pressure can perform the second crushing of the raw materials. That is, the present application crushes the wood raw materials twice by physical methods, thereby improving the technical problem of insufficient precision in crushing the raw materials by the current fiber separation equipment 100 for plant raw materials.

[0041] The technical solution of this application is described below based on specific embodiments.

[0042] See also Figure 1 The heating tank 10 is used to store plant materials and construct a closed container with a high-pressure and high-temperature environment. The end of the heating tank 10 away from the first pipe 410 and the second pipe 420 is provided with a feed port 101, a heating port 102 and a safety port 103.

[0043] In this embodiment, the feed port 101 is used to transport plant raw materials into the heating tank 10 and is provided with a feed valve. The setting of the feed valve can realize quantitative control of the plant raw materials, ensure the sealing of the feeding process, and prevent leakage of high-temperature and high-pressure gas.

[0044] In this embodiment, the heating port 102 is used to introduce high-temperature and high-pressure gas to pre-treat the raw materials in the heating tank 10 to soften and expand them. A heating valve is provided on the heating port 102. The heating valve is mainly used to adjust the gas flow entering the heating tank 10 and the pressure in the heating tank 10 to ensure uniform heating of the raw materials and improve the subsequent crushing efficiency.

[0045] For example, the present application can introduce hot steam with a pressure of 0.5Mpa~1.0Mpa into the heating tank 10 through the heating port 102, and heat the raw materials in the heating tank 10 by the hot steam. When the temperature in the heating tank 10 reaches 200℃~240℃ and the pressure reaches 4Mpa~5Mpa, the cell water and bound water inside the raw material will boil, making the raw material structure loose, that is, after the raw material in the heating tank 10 is acted upon by high-temperature and high-pressure gas, the external structure changes little, but the fiber and lignin inside the raw material begin to separate.

[0046] In this embodiment, the safety port 103 is provided with a safety valve, which is used to automatically open when the pressure in the tank exceeds a set threshold to release part of the gas in the heating tank 10 to prevent equipment damage or safety accidents caused by abnormal pressure increase.

[0047] See also Figure 1 A thermometer 104 is also provided on the side wall of the heating tank 10. The thermometer 104 is used to monitor the temperature inside the heating tank 10 so that the temperature inside the heating tank 10 reaches the set requirement, while preventing the temperature inside the heating tank 10 from being too high or too low.

[0048] See also Figure 1 A pressure gauge 105 is also provided on the side wall of the heating tank 10. The pressure gauge 105 is used to obtain the pressure in the tank in real time to ensure that the pressure is within a safe range and prevent excessive pressure from damaging the equipment.

[0049] See also Figure 1 A material level meter 106 is also provided on the side wall of the heating tank 10. The material level meter 106 is used to obtain the inventory of raw materials in the heating tank 10 to avoid too little or too much raw materials in the heating tank 10.

[0050] See also Figure 1The heating tank 10 includes a heating outlet section 110, which is connected to a transmission pipeline between the heating tank 10 and the fluidized bed tank 20. A one-way valve ST2 is also provided in the transmission pipeline near the heating outlet section 110. When the temperature and pressure in the heating tank 10 reach a preset temperature and a preset pressure, the one-way valve ST2 opens, and the raw materials and high-temperature and high-pressure steam in the heating tank 10 are directed to the fluidized bed tank 20.

[0051] In this embodiment, the plant material can be wood materials such as bamboo, straw or wheat straw. Under high temperature and high pressure environment, the cellulose, hemicellulose and lignin in the wood material will begin to disperse, but the overall shape and structure of the wood material will change little.

[0052] See also Figure 1 The wood raw material of the present application can enter the heating tank 10 through the feed port 101. When the feeding is completed, the feed valve is closed to maintain the sealed state of the heating tank 10, and the heating port 102 is opened to introduce hot steam with a pressure of, for example, 0.6 MPa to heat the raw material. As the temperature in the heating tank 10 rises, the free water and bound water inside the raw material begin to change dramatically, causing the raw material to soften and expand. When the temperature in the heating tank 10 reaches 220°C and the internal pressure rises to 4.5 MPa, the raw material has been fully softened and expanded. At this time, the one-way valve ST2 is opened, and the raw material will be directed to the fluidized tank 20.

[0053] See also Figure 1 and Figure 2 The first pipe 410 and the second pipe 420 are symmetrically arranged, and the extension line of the central axis of the first sub-section 410a and the extension line of the central axis of the second sub-section 420a coincide with each other and both intersect with the central axis of the fluidizing tank 20.

[0054] In this embodiment, the first pipe 410 and the second pipe 420 are transmission channels connecting the heating tank 10 and the fluidizing tank 20. Specifically, high-temperature and high-pressure resistant metal pipes can be used, and the pipe diameter can be adjusted according to the raw material flow requirements. For example, the first pipe 410 and the second pipe 420 can both be made of high-temperature resistant alloy steel.

[0055] In this embodiment, two symmetrically arranged pipes introduce high-pressure raw materials from symmetrical positions on the side walls of the fluidized bed tank 20 respectively. Since the axes of the pipes intersect at the center of the tank body, the two raw material flows form a counter-impact area in the tank; at the same time, the symmetrically arranged first pipe 410 and second pipe 420 make the kinetic energy of the raw materials introduced into the fluidized bed tank 20 the same, so that the raw materials are broken more thoroughly during the counter-impact collision.

[0056] In this embodiment, the extension lines of the central axes of the first sub-section 410a and the second sub-section 420a coincide and intersect with the central axis of the fluidized bed tank 20, that is, the collision point of the raw materials in the first pipe 410 and the second pipe 420 is located on the central axis of the fluidized bed tank 20, so that the moving distance of the raw materials in the fluidized bed tank 20 is maximized, that is, before the raw materials collide, the kinetic energy of the raw materials can be further increased, thereby increasing the crushing strength of the raw materials when they collide.

[0057] In this embodiment, the first pipe 410 and the second pipe 420 can be curved pipe structures with the same pipe diameter and the same curvature radius, so that the flow path of the raw material in the pipe is symmetrical, further ensuring that the kinetic energy of the raw material entering from both sides of the fluidized bed tank 20 is the same.

[0058] See also Figure 3 The first sub-portion 410a and the second sub-portion 420a can both be tangent to the side wall of the fluidized tank 20, that is, the raw materials introduced into the fluidized tank 20 from the first sub-portion 410a and the second sub-portion 420a can be introduced along the tangential direction of the fluidized tank 20 and collide inside the fluidized tank 20.

[0059] In this embodiment, the raw materials are introduced along the tangential direction of the fluidized bed tank 20. After the first collision, the collided raw materials will collide multiple times in the fluidized bed tank 20 to crush the raw materials multiple times, further increasing the crushing accuracy of the raw materials.

[0060] See also Figure 4 , a plurality of transmission pipes 400a may be included between the fluidizing tank 20 and the heating tank 10, for example Figure 4 There are 5 transmission pipes 400a, and the interval between two adjacent transmission pipes 400a can be 72°. Each transmission pipe 400a is tangent to the side wall of the fluidized tank 20. The setting of multiple transmission pipes 400a can make the raw materials undergo multiple rotation collisions in the fluidized tank 20 after being introduced into the fluidized tank 20 through the transmission pipes 400a, thereby increasing the collision intensity and further increasing the crushing accuracy of the raw materials.

[0061] After the raw materials collide in the fluidized bed tank 20, they need to be discharged from the fluidized bed tank 20 to the outside. The pressure difference between the pressure inside the fluidized bed tank 20 and the external atmospheric pressure can crush the raw materials. Therefore, the pressure difference between the pressure inside the fluidized bed tank 20 and the external atmospheric pressure is positively correlated with the crushing accuracy of the raw materials.

[0062] exist Figure 1 In the structure, the outlet section of the fluidizing tank 20 is a convergent nozzle. The raw material speed increases and the pressure decreases in the convergent nozzle. Therefore, the present application can make the outlet section of the fluidizing tank 20 a Rafale nozzle.

[0063] See also Figure 5 The Rafale nozzle is a pipe structure with a continuous transition between a convergent section 210 and a divergent section 220. For example, it can be composed of a conical convergent section 210 and a trumpet-shaped divergent section 220. The cross-sectional area of ​​the convergent section 210 gradually decreases along the flow direction, and the cross-sectional area of ​​the divergent section 220 gradually increases along the flow direction. When the raw material passes through the convergent section 210, the speed increases and the pressure decreases. When the raw material passes through the divergent section 220, the speed decreases and the pressure increases. Therefore, the present application can use the Rafale nozzle to reduce the speed of the raw material when it is discharged from the fluidizing tank 20, and increase the pressure of the outlet section of the fluidizing tank 20, thereby increasing the pressure difference between the pressure of the outlet section of the fluidizing tank 20 and the external pressure. When the raw material is ejected from the outlet section of the fluidizing tank 20, the shape of the Rafale nozzle can effectively increase the pressure difference between the pressure of the ejected raw material and the external pressure, thereby achieving secondary crushing, thereby improving the crushing effect of the raw material.

[0064] In this embodiment, a pressure gauge 201 may be further provided on the side wall of the fluidized tank 20. The pressure gauge 201 is used to monitor the pressure inside the tank in real time, ensuring that the rated pressure inside the fluidized tank 20 is within a safe range and preventing damage to the equipment caused by excessive pressure.

[0065] In this embodiment, the cross-sectional area of ​​the outlet section of the Rafale nozzle can be larger than the cross-sectional area of ​​the inlet section of the Rafale nozzle, which is equivalent to further converting the raw material velocity into pressure by reducing the raw material velocity to increase the pressure difference between the interior of the fluidizing tank 20 and the atmospheric pressure.

[0066] See also Figure 6 , Figure 6 and Figure 1 The structure is the same or similar, except that: the fiber separation equipment 100 for plant raw materials further includes a vaporization tank 30 arranged between the heating tank 10 and the fluidizing tank 20, and a third pipe 430 connecting the vaporization tank 30 and the heating tank 10.

[0067] See also Figure 6 The first pipe 410 and the second pipe 420 have one end away from the fluidizing tank 20 and are connected to the outlet of the vaporizer 30, one end of the third pipe 430 is connected to the heating outlet section 110 of the heating tank 10, and the other end of the third pipe 430 is connected to the side wall of the vaporizer 30.

[0068] See also Figure 7 The third pipe 430 includes a third sub-portion 430 a close to the vaporizer 30 , and an extension line of a central axis of the third sub-portion 430 a is parallel to a tangent line of a connection point between the third sub-portion 430 a and the side wall of the vaporizer 30 .

[0069] In this embodiment, the vaporizer 30 is a buffer and acceleration unit arranged between the heating tank 10 and the fluidizing tank 20. Its function is to reduce the pressure of the raw material and increase the kinetic energy of the raw material, which is equivalent to increasing the speed at which the raw material enters the fluidizing tank 20, thereby enhancing the crushing strength of the raw material in the fluidizing tank 20; and the present application makes the third pipe 430 and the side wall of the vaporizer 30 tangent, so that the raw material entering the vaporizer 30 flows in a rotational manner along the inner wall of the vaporizer 30, thereby extending the movement path of the raw material in the vaporizer 30, reducing the loss of kinetic energy of the raw material in the fluidizing tank 20, and improving the efficiency of converting pressure into kinetic energy in the vaporizer 30.

[0070] For example, see Figure 6 Since the interior of the heating tank 10 is in a high temperature and high pressure state, after the raw material enters the vaporizer 30 through the third pipe 430, the direction in which the raw material enters the vaporizer 30 is tangential to the side wall of the vaporizer 30. Under the action of gravity and pressure, the raw material can rotate and accelerate along the inner wall of the vaporizer 30, that is, the movement trajectory of the raw material in the vaporizer 30 can be spiral, which effectively extends the movement path of the raw material; at the same time, the outlet section of the vaporizer 30 of the present application can be a convergent nozzle, or the entire structure of the vaporizer 30 can be a convergent nozzle, so as to reduce the pressure inside the vaporizer 30 and convert it into kinetic energy of the raw material, and the acceleration process in the vaporizer 30 directly affects the crushing effect of the raw material after entering the fluidizing tank 20. The faster the speed of the raw material when entering the fluidizing tank 20, the greater the impact and collision intensity in the fluidizing tank 20, and the more thorough the crushing effect.

[0071] See also Figure 6 A pressure checker 301 is also provided on the side wall of the vaporizer 30 for monitoring the pressure inside the tank in real time to ensure that the pressure inside the vaporizer 30 is within a safe range and to prevent damage to the equipment due to excessive pressure.

[0072] See also Figure 6 The vaporizer 30 includes a vaporizer outlet section 310 disposed near the fluidizing tank 20 , and the cross-sectional area of ​​the vaporizer outlet section 310 is smaller than the cross-sectional area of ​​the vaporizer 30 at one end away from the fluidizing tank 20 .

[0073] In this embodiment, the outlet cross-sectional area of ​​the vaporizer 30 is smaller than the distal cross-sectional area of ​​the vaporizer 30 , that is, the internal shape of the vaporizer 30 is a tapered structure. Due to the reduction in the outlet cross-sectional area, under the condition of the same flow rate, the cross-sectional area is negatively correlated with the speed, that is, the larger the cross-sectional area, the smaller the speed, and the smaller the cross-sectional area, the greater the speed. Therefore, the present application increases the speed of the raw material at the outlet position of the vaporizer 30 by reducing the outlet cross-sectional area of ​​the vaporizer 30, which is equivalent to increasing the speed of the raw material when entering the fluidizing tank 20, thereby improving the collision intensity of the raw material in the fluidizing tank 20.

[0074] See also Figure 6 The plant material fiber separation device 100 further includes a fourth pipe 440 , one end of the fourth pipe 440 is connected to the third pipe 430 , and the other end of the fourth pipe 440 is connected to the exhaust valve ST1 of the plant material fiber separation device 100 .

[0075] In this embodiment, at the moment when the one-way valve ST2 of the heating outlet section 110 of the heating tank 10 is opened, the raw material will boil again due to the decrease in pressure, generating more high-pressure water vapor, resulting in excessive pressure in the heating tank 10. At this time, the exhaust valve ST1 is opened, and the fiber separation equipment 100 for plant raw materials can guide the overpressure steam to the third pipe 430 through the fourth pipe 440, and enter the vaporizer 30 together with the third pipe 430. The internal pressure of the heating tank 10 is adjusted by exhaust, which prevents high pressure accumulation, improves the safety of the heating tank 10, and ensures stable operation of the equipment. At the same time, since the pressure in the heating tank 10 is too high at the moment when the one-way valve ST2 is opened, part of the raw material will remain on the inner wall of the heating tank 10. The third pipe 430 of this application adjusts the internal pressure of the heating tank 10 by exhausting, reducing the raw material remaining on the inner wall of the heating tank 10.

[0076] In this embodiment, the friction force of the inner wall of the vaporizer 30 can be smaller than the friction force of the inner wall of the fluidizing tank 20, which is equivalent to reducing the kinetic energy lost by the raw material inside the vaporizer 30 due to friction, thereby further improving the efficiency of converting pressure and gravity into kinetic energy of the raw material.

[0077] See also Figure 6 The heating tank 10, the vaporizing tank 30 and the fluidizing tank 20 are spaced apart in a direction perpendicular to a horizontal plane.

[0078] In this embodiment, the heating tank 10, the vaporizing tank 30 and the fluidizing tank 20 are spaced apart in the vertical direction so that the raw materials flow in the direction of gravity, utilizing the effect of gravity to increase the kinetic energy of the raw materials during the transmission process. At the same time, under the dual effects of gravity and pressure, the accumulation of raw materials in the pipeline or inside the tank body is avoided.

[0079] See also Figure 6 The cross-sectional area of ​​the vaporization outlet section 310 of the present application can be smaller than the cross-sectional area of ​​the throat of the fluidizing tank 20; since the vaporization outlet section 310 is narrower than the throat of the fluidizing tank 20, after the raw material passes through the vaporization outlet section 310, the speed of the raw material is the highest in the vaporization outlet section, thereby improving the collision strength of the raw material in the fluidizing tank 20; and the increase in the cross-sectional area of ​​the throat of the fluidizing tank 20 can reduce the speed of the raw material at the throat position of the fluidizing tank 20, thereby increasing the pressure of the raw material at the throat position of the fluidizing tank 20, thereby increasing the pressure difference between the fluidizing tank 20 and the atmospheric pressure, and improving the crushing accuracy of the raw material when it is discharged from the fluidizing tank 20.

[0080] See also Figure 6 In a direction perpendicular to the horizontal plane, the length of the vaporizer 30 is greater than that of the fluidizing tank 20. In this embodiment, when the raw materials enter the vaporizer 30 from the heating tank 10, due to the longer length of the vaporizer 30, the raw materials have a longer path to accelerate before entering the fluidizing tank 20, further increasing the kinetic energy of the raw materials upon entering the vaporizer 30, and causing the raw materials to be more thoroughly crushed during the collision within the fluidizing tank 20.

[0081] See also Figure 6 , the pressure in the heating tank 10 is greater than the pressure in the vaporizing tank 30 , and the pressure in the vaporizing tank 30 is greater than the pressure in the fluidizing tank 20 .

[0082] In this embodiment, the pressure of the heating tank 10 is the highest, ensuring that the raw materials can be efficiently transported to the vaporizer 30. The pressure of the vaporizer 30 is second, which is used to buffer the raw materials and form a high-speed fluid at the outlet. The pressure of the fluidizing tank 20 is the lowest, ensuring that the raw materials can enter smoothly and form a counter-breaking. By setting the pressure gradient, the raw materials can flow stably along the path and form a crushing zone in the fluidizing tank 20, which optimizes the crushing process and improves the quality of the finished product. At the same time, it ensures that the raw materials have sufficient thrust so that the raw materials can flow along the path and improve the transportation efficiency.

[0083] It should be noted that Figures 2 to 5 The structures in are applicable to Figure 6 The structure in .

[0084] The present application discloses a fiber separation device for plant raw materials; the fiber separation device for plant raw materials includes a heating tank, a fluidizing tank and a first pipe and a second pipe, the first pipe and the second pipe are connected to different areas of the side wall of the fluidizing tank, and the first pipe includes a first sub-section, the second pipe includes a second sub-section, and the extension line of the central axis of the first sub-section and the extension line of the central axis of the second sub-section intersect or are parallel; the present application makes the extension line of the central axis of the first sub-section connected to the fluidizing tank intersect or be parallel, so that the raw materials entering the fluidizing tank through the first sub-section and the second sub-section can collide in the fluidizing tank to perform the first crushing of the raw materials, and at the same time the raw materials are discharged through the fluidizing tank, and the pressure difference between the fluidizing tank and the external atmospheric pressure can perform the second crushing of the raw materials, thereby improving the technical problem of insufficient precision in crushing raw materials in the current fiber separation device for plant raw materials.

[0085] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] The above is a detailed introduction to the technical solutions provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fiber separation device for plant raw materials, characterized in that: include: a heating tank containing plant material and high-pressure gas; A fluidizing tank is provided on one side of the heating tank; A vaporizing tank is provided between the heating tank and the fluidizing tank. a first pipe and a second pipe, one end of the first pipe and the second pipe being connected to different areas of the side wall of the fluidizing tank, the other end of the first pipe and the second pipe being connected to the outlet of the vaporizing tank, the heating tank, the vaporizing tank, and the fluidizing tank being spaced apart in a direction perpendicular to a horizontal plane; a third pipe connecting the vaporizer and the heating tank, one end of the third pipe being connected to the heating outlet section of the heating tank, and the other end of the third pipe being connected to the side wall of the vaporizer; the third pipe including a third subsection adjacent to the vaporizer, an extension of a central axis of the third subsection being parallel to a tangent line at a connection point between the third subsection and the side wall of the vaporizer, and the third pipe being connected to the vaporizer, the first pipe, the second pipe, and the fluidizing tank; Exhaust valve; a fourth pipe, one end of the fourth pipe being connected to the third pipe, and the other end of the fourth pipe being connected to the exhaust valve; The first pipeline includes a first subsection close to the fluidizing tank, the second pipeline includes a second subsection close to the fluidizing tank, and the extension line of the central axis of the first subsection and the extension line of the central axis of the second subsection intersect or are parallel.

2. The fiber separation device for plant raw materials according to claim 1, characterized in that: The first pipeline and the second pipeline are symmetrically arranged, and the extension line of the central axis of the first sub-section and the extension line of the central axis of the second sub-section coincide with each other and both intersect with the central axis of the fluidizing tank; Alternatively, both the first sub-portion and the second sub-portion are tangent to the side wall of the fluidizing tank.

3. The fiber separation device for plant raw materials according to claim 1, characterized in that: The outlet section of the fluidizing tank is a Rafale nozzle.

4. The fiber separation device for plant raw materials according to claim 1, characterized in that: The vaporizer includes a vaporizer outlet section disposed near the fluidizer, and a cross-sectional area of ​​the vaporizer outlet section is smaller than a cross-sectional area of ​​an end of the vaporizer away from the fluidizer.

5. The fiber separation device for plant materials according to claim 4, characterized in that: The cross-sectional area of ​​the vaporization outlet section is smaller than the throat cross-sectional area of ​​the fluidizing tank.

6. The fiber separation device for plant materials according to claim 4, characterized in that: In a direction perpendicular to a horizontal plane, the length of the vaporization tank is greater than that of the fluidization tank.

7. The fiber separation device for plant materials according to claim 4, characterized in that: The pressure in the heating tank is greater than the pressure in the vaporizing tank, and the pressure in the vaporizing tank is greater than the pressure in the fluidizing tank.

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