Plant raw material fiber separation equipment

Abstract

The invention discloses fiber separation equipment for plant raw materials. The plant raw material fiber separation equipment comprises a heating tank, a fluidization tank, a first pipeline and a second pipeline, the first pipeline and the second pipeline are connected with different areas of the side wall of the fluidization tank, the first pipeline comprises a first sub-part, and the second pipeline comprises a second sub-part; the extension line of the central axis of the first sub-part and the extension line of the central axis of the second sub-part intersect or are parallel. The extension line of the central axis of the first sub-part and the extension line of the central axis of the second sub-part which are connected with the fluidization tank are intersected or parallel, so that plant raw materials entering the fluidization tank through the first sub-part and the second sub-part can collide in the fluidization tank, the plant raw materials are crushed for the first time, and the plant raw materials are crushed for the second time; meanwhile, the plant raw materials are guided out through the fluidization tank, the plant raw materials can be secondarily crushed through the pressure difference between the fluidization tank and the external atmospheric pressure, and the precision of fiber separation in the plant raw materials is improved.

Description

Technical Field

[0001] This application relates to the field of biomanufacturing, and particularly to a fiber separation device for plant raw materials. Background Art

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

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

[0004] To solve the above solution, the technical solutions provided by this application are as follows: This application proposes a fiber separation device for plant raw materials, which includes: A heating tank, which contains plant raw materials and high-pressure gas; A fluidization tank, which is arranged on one side of the heating tank; A first pipeline and a second pipeline. One end of the first pipeline and the second pipeline far from the fluidization tank is connected to the outlet of the heating tank, and the other ends of the first pipeline and the second pipeline far from the heating tank are connected to different areas on the side wall of the fluidization tank; Wherein, the first pipeline includes a first sub-part close to the fluidization tank, the second pipeline includes a second sub-part close to the fluidization tank, and the extension line of the central axis of the first sub-part and the extension line of the central axis of the second sub-part intersect or are parallel.

[0005] In the fiber separation device for plant raw materials of this application, the first pipeline and the second pipeline are symmetrically arranged, the extension line of the central axis of the first sub-part and the extension line of the central axis of the second sub-part coincide, and both intersect with the central axis of the fluidization tank; Or, both the first sub-part and the second sub-part are tangent to the side wall of the fluidization tank.

[0006] In the fiber separation device for plant raw materials of this application, the outlet section of the fluidization tank is a Laval nozzle.

[0007] In the fiber separation device for plant raw materials of this application, the fiber separation device for plant raw materials further includes: A vaporization tank, which is arranged between the heating tank and the fluidization tank, and one end of the first pipeline and the second pipeline far from the fluidization tank are both connected to the outlet of the vaporization tank; A third pipeline, connecting the vaporization tank and the heating tank, one end of the third pipeline is connected to the heating outlet section of the heating tank, and the other end of the third pipeline is connected to the side wall of the vaporization tank; Wherein, the third pipeline includes a third sub-section close to the vaporization tank, and the extension line of the central axis of the third sub-section is parallel to the tangent line at the connection point of the third sub-section and the side wall of the vaporization tank.

[0008] In the fiber separation device for plant raw materials of the present application, the fiber separation device for plant raw materials further includes: An exhaust valve; A fourth pipeline, one end of the fourth pipeline is communicated with the third pipeline, and the other end of the fourth pipeline is connected to the exhaust valve.

[0009] In the fiber separation device for plant raw materials of the present application, the heating tank, the vaporization tank and the fluidization tank are arranged at intervals in a direction perpendicular to the horizontal plane.

[0010] In the fiber separation device for plant raw materials of the present application, the vaporization tank includes a vaporization outlet section arranged close to the fluidization tank, and the cross-sectional area of the vaporization outlet section is smaller than the cross-sectional area of the end of the vaporization tank far from the fluidization tank.

[0011] In the fiber separation device for plant raw materials of the present application, the cross-sectional area of the vaporization outlet section is smaller than the cross-sectional area of the throat of the fluidization tank.

[0012] In the fiber separation device for plant raw materials 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.

[0013] In the fiber separation device for plant raw materials 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.

[0014] In the present application, by making the extension lines of the central axes of the first sub-section and the second sub-section connected to the fluidization tank intersect or intersect, the raw materials entering the fluidization tank through the first sub-section and the second sub-section can collide in the fluidization tank to perform the first crushing on the raw materials. At the same time, the raw materials are exported through the fluidization tank, and the pressure difference between the fluidization tank and the external atmospheric pressure can perform the second crushing on the raw materials, improving the technical problem of insufficient precision of the current fiber separation device for plant raw materials in crushing the raw materials. Description of the Drawings

[0015] The following will, by describing in detail the specific embodiments of the present application in conjunction with the drawings, make the technical solutions and other beneficial effects of the present application obvious.

[0016] Figure 1The first structural schematic diagram of the fiber separation device for the plant raw materials of the present application; Figure 2 is Figure 1 The first sectional view of the middle section AA; Figure 3 is Figure 1 The second sectional view of the middle section AA; Figure 4 is Figure 1 The third sectional view of the middle section AA; Figure 5 The structural diagram of the outlet section of the fluidization tank in the fiber separation device for the plant raw materials of the present application; Figure 6 The second structural schematic diagram of the fiber separation device for the plant raw materials of the present application; Figure 7 is Figure 6 The sectional view of the middle section BB. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0018] Please refer to Figures 1 to 5 , the present application provides a fiber separation device 100 for plant raw materials, including a heating tank 10, a fluidization tank 20 arranged on one side of the heating tank 10, and a first pipeline 410 and a second pipeline 420.

[0019] In this embodiment, the heating tank 10 is provided with plant raw materials and high-pressure gas, and both the first pipeline 410 and the second pipeline 420 are connected to the heating tank 10 and the fluidization tank 20, and are used to transfer the plant raw materials and high-pressure gas in the heating tank 10 into the fluidization tank 20.

[0020] In this embodiment, one ends of the first pipeline 410 and the second pipeline 420 far from the fluidization tank 20 are both connected to the outlet of the heating tank 10, and one ends of the first pipeline 410 and the second pipeline 420 far from the heating tank 10 are connected to different areas on the side wall of the fluidization tank 20.

[0021] In this embodiment, the first pipeline 410 includes a first sub - part 410a close to the fluidization tank 20, the second pipeline 420 includes a second sub - part 420a close to the fluidization tank 20, and the extension line of the central axis of the first sub - part 410a intersects with the extension line of the central axis of the second sub - part 420a.

[0022] The current fiber separation equipment 100 for plant raw materials usually only uses high - temperature steam to soften the woody raw materials and combines physical methods such as the pressure difference inside and outside the equipment or mechanical crushing to crush the raw materials to obtain fiber raw materials. However, the above - mentioned treatment methods usually have the technical problem of incomplete crushing of the raw materials.

[0023] In this application, by making the extension line of the central axis of the first sub - part 410a connected to the fluidization tank 20 intersect or be parallel to the extension line of the central axis of the second sub - part 420a, the raw materials entering the fluidization tank 20 through the first sub - part 410a and the second sub - part 420a can collide inside the fluidization tank 20 to perform the first - stage crushing on the raw materials. At the same time, the raw materials are exported from the fluidization tank 20, and the pressure difference between the fluidization tank 20 and the external atmospheric pressure can perform the second - stage crushing on the raw materials. That is, this application performs two - stage crushing on the woody raw materials through physical methods, improving the technical problem of insufficient precision in crushing raw materials by the current fiber separation equipment 100 for plant raw materials.

[0024] The technical solutions of this application will be described below according to specific embodiments.

[0025] Please refer to Figure 1 , the heating tank 10 is a closed container for storing plant raw materials and constructing a high - pressure and high - temperature environment. One end of the heating tank 10 away from the first pipeline 410 and the second pipeline 420 is provided with a feed inlet 101, a heating port 102, and a safety port 103.

[0026] In this embodiment, the feed inlet 101 is used to convey plant raw materials into the heating tank 10 and is provided with a feed valve. The setting of the feed valve can achieve quantitative control of the plant raw materials and ensure the tightness of the feeding process, preventing the leakage of high - temperature and high - pressure gas.

[0027] 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. The heating port 102 is provided with a heating valve, and the heating valve is mainly used to adjust the gas flow rate 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.

[0028] For example, in the present application, hot steam with a pressure of 0.5 Mpa to 1.0 Mpa can be introduced into the heating tank 10 through the heating port 102, and the raw materials in the heating tank 10 can be heated by the hot steam. When the temperature in the heating tank 10 reaches 200°C to 240°C and the pressure reaches 4 Mpa to 5 Mpa, the cellular water and bound water inside the raw materials will boil, making the structure of the raw materials loose. That is, after the raw materials in the heating tank 10 are acted upon by high-temperature and high-pressure gas, the external shape structure changes little, but the fibers and lignin inside the raw materials begin to separate.

[0029] In this embodiment, a safety valve is provided at the safety port 103. The safety valve is used to automatically open when the pressure in the tank exceeds the set threshold value to release some of the gas in the heating tank 10, preventing equipment damage or safety accidents caused by abnormal pressure increase.

[0030] Please refer to Figure 1 , a thermometer 104 is further provided on the side wall of the heating tank 10. The thermometer 104 is used to monitor the temperature in the heating tank 10 so that the temperature in the heating tank 10 reaches the set requirements, and at the same time, the temperature in the heating tank 10 can be prevented from being too high or too low.

[0031] Please refer to Figure 1 , a pressure gauge 105 is further 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 the safe range and prevent damage to the equipment caused by excessive pressure.

[0032] Please refer to Figure 1 , a level gauge 106 is further provided on the side wall of the heating tank 10. The level gauge 106 is used to obtain the stock quantity of the raw materials in the heating tank 10 to avoid too little or too much raw materials in the heating tank 10.

[0033] Please refer to Figure 1 , the heating tank 10 includes a heating outlet section 110. The heating outlet section 110 is connected to a transmission pipeline located between the heating tank 10 and the fluidization tank 20, and a check valve ST2 is further provided in the pipeline close to the heating outlet section 110. When the temperature and pressure in the heating tank 10 reach the preset temperature and preset pressure, the check valve ST2 opens, and the raw materials and high-temperature and high-pressure steam inside the heating tank 10 will be directed to the fluidization tank 20.

[0034] In this embodiment, the plant raw materials can be woody raw materials such as bamboo, straw, or wheat straw. In a high-temperature and high-pressure environment, the cellulose, hemicellulose, and lignin in the woody raw materials will begin to disperse, but the overall external shape structure of the woody raw materials changes little.

[0035] Please refer to Figure 1, the wood raw materials of the present application can enter the heating tank 10 through the feed inlet 101. After the feeding is completed, the feed valve is closed to maintain the sealed state inside 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 materials. As the temperature inside the heating tank 10 rises, the free water and bound water inside the raw materials begin to change violently, softening and expanding the raw materials. When the temperature inside the heating tank 10 reaches 220 °C and the internal pressure rises to 4.5 Mpa, the raw materials have been fully softened and expanded. At this time, the one-way valve ST2 opens, and the raw materials will be guided into the fluidization tank 20.

[0036] Please refer to 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 - part 410a and the extension line of the central axis of the second sub - part 420a coincide and both intersect with the central axis of the fluidization tank 20.

[0037] In this embodiment, the first pipe 410 and the second pipe 420 are transmission channels connecting the heating tank 10 and the fluidization tank 20. Specifically, high - temperature and high - pressure metal pipes can be used, and the pipe diameter can be adjusted according to the raw material flow demand. For example, both the first pipe 410 and the second pipe 420 can be made of high - temperature resistant alloy steel.

[0038] In this embodiment, the two symmetrically arranged pipes introduce high - pressure raw materials from symmetric positions on the side wall of the fluidization tank 20 respectively. Since the pipe axes intersect at the center of the tank, two raw material flows form a counter - impact area inside 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 fluidization tank 20 the same, making the raw materials break more thoroughly when they collide.

[0039] In this embodiment, the extension lines of the central axes of the first sub - part 410a and the second sub - part 420a coincide and intersect with the central axis of the fluidization tank 20, that is, the counter - impact point of the raw materials in the first pipe 410 and the second pipe 420 is located on the central axis of the fluidization tank 20, making the moving distance of the raw materials in the fluidization tank 20 the largest. That is, before the raw materials collide, the kinetic energy of the raw materials can be further increased, increasing the crushing strength when the raw materials collide.

[0040] In this embodiment, the first pipe 410 and the second pipe 420 can be elbow structures with the same pipe diameter and the same radius of curvature, making the flow paths of the raw materials in the pipes symmetric, further ensuring that the kinetic energy of the raw materials entering from both sides of the fluidization tank 20 is the same.

[0041] Please refer to Figure 3, the first sub - part 410a and the second sub - part 420a can both be tangent to the side wall of the fluidization tank 20. That is, the raw materials introduced into the fluidization tank 20 from the first sub - part 410a and the second sub - part 420a can be introduced along the tangential direction of the fluidization tank 20 and collide inside the fluidization tank 20.

[0042] In this embodiment, the raw materials are introduced along the tangential direction of the fluidization tank 20. After the first collision, the collided raw materials will collide multiple times inside the fluidization tank 20 to crush the raw materials multiple times, further increasing the crushing accuracy of the raw materials.

[0043] Please refer to Figure 4 , there can be multiple transfer pipes 400a between the fluidization tank 20 and the heating tank 10. For example Figure 4 There are 5 transfer pipes 400a arranged in it. The interval between two adjacent transfer pipes 400a can be 72°. Each transfer pipe 400a is tangent to the side wall of the fluidization tank 20. The arrangement of the multiple transfer pipes 400a can enable the raw materials to rotate and collide multiple times inside the fluidization tank 20 after being introduced into the fluidization tank 20 through the transfer pipes 400a, increasing the collision intensity and further increasing the crushing accuracy of the raw materials.

[0044] After the raw materials collide inside the fluidization tank 20, they need to be exported from the fluidization tank 20 to the outside. The pressure difference between the pressure inside the fluidization tank 20 and the external atmospheric pressure can crush the raw materials. Therefore, the pressure difference between the pressure inside the fluidization tank 20 and the external atmospheric pressure is positively correlated with the crushing accuracy of the raw materials.

[0045] In Figure 1 's structure, the outlet section of the fluidization tank 20 is a convergent nozzle. Inside the convergent nozzle, the velocity of the raw materials increases and the pressure decreases. Therefore, in this application, the outlet section of the fluidization tank 20 can be a Laval nozzle.

[0046] Please refer to Figure 5, the De Laval nozzle is a pipe structure with a continuous transition between a converging section 210 and a diverging section 220. For example, it can adopt a combination of a conical converging section 210 and a flared diverging section 220. The cross-sectional area of the converging section 210 gradually decreases along the flow direction, and the cross-sectional area of the diverging section 220 gradually increases along the flow direction. When the raw material passes through the converging section 210, the velocity increases and the pressure decreases. When the raw material passes through the diverging section 220, the velocity decreases and the pressure increases. Therefore, the present application can use the De Laval nozzle to reduce the velocity of the raw material when it is discharged from the fluidization tank 20 and increase the pressure in the outlet section of the fluidization tank 20, thereby increasing the pressure difference between the pressure in the outlet section of the fluidization tank 20 and the external pressure. When the raw material is ejected from the outlet section of the fluidization tank 20, the shape of the De Laval nozzle can effectively increase the pressure difference between the pressure of the ejected raw material and the external pressure, realizing secondary crushing, and thus improving the crushing effect of the raw material.

[0047] In this embodiment, a pressure gauge 201 can also be provided on the side wall of the fluidization tank 20. The pressure gauge 201 is used to monitor the pressure in the tank in real time to ensure that the rated pressure in the fluidization tank 20 is within a safe range and prevent damage to the equipment caused by excessive pressure.

[0048] In this embodiment, the cross-sectional area of the outlet section of the De Laval nozzle can be larger than the cross-sectional area of the De Laval nozzle at the inlet section, that is, it is equivalent to further converting the reduction of the raw material velocity into pressure to increase the pressure difference between the inside of the fluidization tank 20 and the atmospheric pressure.

[0049] Please refer to Figure 6 , Figure 6 and Figure 1 have the same or similar structures. The difference is that: the fiber separation device 100 for plant raw materials further includes a vaporization tank 30 provided between the heating tank 10 and the fluidization tank 20, and a third pipeline 430 connecting the vaporization tank 30 and the heating tank 10.

[0050] Please refer to Figure 6 , one end of the first pipeline 410 and the second pipeline 420 far from the fluidization tank 20 are both connected to the outlet of the vaporization tank 30. One end of the third pipeline 430 is connected to the heating outlet section 110 of the heating tank 10, and the other end of the third pipeline 430 is connected to the side wall of the vaporization tank 30.

[0051] Please refer to Figure 7 , the third pipeline 430 includes a third sub-section 430a close to the vaporization tank 30. The extension line of the central axis of the third sub-section 430a is parallel to the tangent line at the connection point of the third sub-section 430a and the side wall of the vaporization tank 30.

[0052] In this embodiment, the vaporization tank 30 is a buffer and acceleration unit disposed between the heating tank 10 and the fluidization tank 20. Its function is to reduce the pressure of the raw material and increase the kinetic energy of the raw material, that is, it is equivalent to increasing the speed of the raw material entering the fluidization tank 20, thereby enhancing the crushing strength of the raw material in the fluidization tank 20. And in this application, by making the third pipeline 430 tangent to the side wall of the vaporization tank 30, the raw material entering the vaporization tank 30 flows in a rotating manner along the inner wall of the vaporization tank 30, extending the movement path of the raw material in the vaporization tank 30, reducing the loss of kinetic energy of the raw material in the fluidization tank 20, and improving the efficiency of converting the pressure in the vaporization tank 30 into kinetic energy.

[0053] For example, please refer to Figure 6 , since the inside of the heating tank 10 is in a high-temperature and high-pressure state, after the raw material enters the vaporization tank 30 through the third pipeline 430, the direction of the raw material entering the vaporization tank 30 is tangent to the side wall of the vaporization tank 30. Under the action of gravity and pressure, the raw material can rotate and accelerate along the inner wall of the vaporization tank 30, that is, the movement trajectory of the raw material in the vaporization tank 30 can be spiral, effectively extending the movement path of the raw material. At the same time, the outlet section of the vaporization tank 30 of this application can be a convergent nozzle, or the overall structure of the vaporization tank 30 can be a convergent nozzle, so as to reduce the pressure inside the vaporization tank 30 and convert it into the kinetic energy of the raw material. The acceleration process in the vaporization tank 30 directly affects the crushing effect after the raw material enters the fluidization tank 20. The faster the speed of the raw material when it enters the fluidization tank 20, the greater the impact collision intensity in the fluidization tank 20 and the more thorough the crushing effect.

[0054] Please refer to Figure 6 , a pressure checker 301 is further provided on the side wall of the vaporization tank 30 for real-time monitoring of the pressure in the tank to ensure that the pressure in the vaporization tank 30 is within a safe range and prevent damage to the equipment caused by excessive pressure.

[0055] Please refer to Figure 6 , the vaporization tank 30 includes a vaporization outlet section 310 disposed close to the fluidization tank 20, and the cross-sectional area of the vaporization outlet section 310 is smaller than the cross-sectional area of the end of the vaporization tank 30 far from the fluidization tank 20.

[0056] In this embodiment, the outlet cross-sectional area of the vaporization tank 30 is smaller than the cross-sectional area of the distal end of the vaporization tank 30, that is, the internal shape of the vaporization tank 30 is a tapered structure. Since the outlet cross-sectional area is reduced, under the same flow rate, the cross-sectional area and the speed are negatively correlated, that is, the larger the cross-sectional area, the smaller the speed, and the smaller the cross-sectional area, the larger the speed. Therefore, in this application, by reducing the outlet cross-sectional area of the vaporization tank 30, the speed of the raw material at the outlet position of the vaporization tank 30 is increased, that is, it is equivalent to increasing the speed of the raw material when entering the fluidization tank 20, and the collision intensity of the raw material in the fluidization tank 20 is improved.

[0057] Please refer toFigure 6 The fiber separation device 100 for the plant raw material further includes a fourth pipeline 440. One end of the fourth pipeline 440 communicates with the third pipeline 430, and the other end of the fourth pipeline 440 is connected to the exhaust valve ST1 of the fiber separation device 100 for the plant raw material.

[0058] In this embodiment, at the moment when the one-way valve ST2 at the heating outlet section 110 of the heating tank 10 is opened, due to the decrease in pressure, the raw material will boil again, generating more high-pressure steam, resulting in excessive pressure inside the heating tank 10. At this time, the exhaust valve ST1 is opened, and through the fourth pipeline 440, the fiber separation device 100 for the plant raw material can guide the overpressure steam to the third pipeline 430 and enter the vaporization tank 30 together with the third pipeline 430, regulating the internal pressure of the heating tank 10 through exhaust, preventing high-pressure accumulation, improving the safety of the heating tank 10, and ensuring stable operation of the device. At the same time, since the pressure inside 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 pipeline 430 in this application regulates the internal pressure of the heating tank 10 through exhaust, reducing the raw material remaining on the inner wall of the heating tank 10.

[0059] In this embodiment, the friction force on the inner wall of the vaporization tank 30 can be smaller than the friction force on the inner wall of the fluidization tank 20, which is equivalent to reducing the kinetic energy lost by the raw material due to friction inside the vaporization tank 30, further improving the efficiency of converting pressure and gravity into the kinetic energy of the raw material.

[0060] Please refer to Figure 6 The heating tank 10, the vaporization tank 30, and the fluidization tank 20 are arranged at intervals in a direction perpendicular to the horizontal plane.

[0061] In this embodiment, the heating tank 10, the vaporization tank 30, and the fluidization tank 20 are arranged at intervals in the vertical direction, enabling the raw material to flow along the direction of gravity, making use of the effect of gravity, increasing the kinetic energy of the raw material during the transmission process, and at the same time, under the dual action of gravity and pressure, avoiding the accumulation of the raw material inside the pipeline or the tank body.

[0062] Please refer to Figure 6 The cross-sectional area of the vaporization outlet section 310 of this application can be smaller than the cross-sectional area of the throat of the fluidization tank 20. Since the vaporization outlet section 310 is narrower than the throat of the fluidization tank 20, after the raw material passes through the vaporization outlet section 310, the speed of the raw material is the maximum at the vaporization outlet section, increasing the collision intensity of the raw material inside the fluidization tank 20. The increase in the cross-sectional area of the throat of the fluidization tank 20 can reduce the speed of the raw material at the throat position of the fluidization tank 20, thereby increasing the pressure of the raw material at the throat position of the fluidization tank 20, further increasing the pressure difference between the fluidization tank 20 and the atmospheric pressure, and improving the crushing accuracy of the raw material when it is exported from the fluidization tank 20.

[0063] Please refer to Figure 6 , in the direction perpendicular to the horizontal plane, the length of the vaporization tank 30 is greater than the length of the fluidization tank 20. In this embodiment, when the raw material enters the vaporization tank 30 from the heating tank 10, due to the longer length of the vaporization tank 30, the raw material will have a longer path to accelerate before entering the fluidization tank 20, further increasing the kinetic energy of the raw material when it enters the vaporization tank 30, and making the raw material break more thoroughly when it undergoes counter-collision in the fluidization tank 20.

[0064] Please refer to Figure 6 , the pressure in the heating tank 10 is greater than the pressure in the vaporization tank 30, and the pressure in the vaporization tank 30 is greater than the pressure in the fluidization tank 20.

[0065] In this embodiment, the pressure in the heating tank 10 is the highest, ensuring that the raw material can be efficiently transported to the vaporization tank 30. The pressure in the vaporization tank 30 is the second highest, used to buffer the raw material and form a high-speed fluid at the outlet. The pressure in the fluidization tank 20 is the lowest, ensuring that the raw material can smoothly enter and form a counter-collision for crushing. Through the setting of the pressure gradient, the raw material can flow stably along the path and form a crushing area in the fluidization tank 20, optimizing the crushing process, improving the quality of the finished product. At the same time, it ensures that the raw material has sufficient thrust to enable the raw material to flow along the path and improve the transportation efficiency.

[0066] It should be noted that Figures 2 to 5 the structures in Figure 6 are all applicable to the structures in

[0067] This application discloses a fiber separation device for plant raw materials. The fiber separation device for plant raw materials includes a heating tank, a fluidization tank, as well as a first pipeline and a second pipeline. The first pipeline and the second pipeline are connected to different areas on the side wall of the fluidization tank, and the first pipeline includes a first sub-section, the second pipeline includes a second sub-section, and the extension lines of the central axes of the first sub-section and the second sub-section intersect or are parallel. By making the extension lines of the central axes of the first sub-section and the second sub-section connected to the fluidization tank intersect or be parallel, the raw materials entering the fluidization tank through the first sub-section and the second sub-section can collide in the fluidization tank to perform the first crushing on the raw materials. At the same time, the raw materials are exported from the fluidization tank, and the pressure difference between the fluidization tank and the external atmospheric pressure can perform the second crushing on the raw materials, improving the technical problem of insufficient precision in crushing raw materials by the current fiber separation device for plant raw materials.

[0068] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0069] The above has introduced in detail the technical solutions provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principles and implementation manners of the present application. The description of the above embodiments is only used to help understand the technical solutions and their core ideas of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and 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, arranged on one side of the heating tank; A first pipeline and a second pipeline, wherein one end of the first pipeline and the second pipeline away from the fluidizing tank is communicated with the outlet of the heating tank, and one end of the first pipeline and the second pipeline away from the heating tank is connected to different areas of the side wall of the fluidizing tank; 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 an extension line of the central axis of the first subsection and an 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 coincides with the extension line of the central axis of the second sub-section, 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 any one of claims 1 to 3, characterized in that: The fiber separation equipment for plant raw materials also includes: A vaporizer is disposed between the heating tank and the fluidizer, and ends of the first pipe and the second pipe away from the fluidizer are connected to an outlet of the vaporizer; 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 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 a side wall of the vaporizer.

5. The fiber separation device for plant raw materials according to claim 4, characterized in that: The fiber separation equipment for plant raw materials also includes: Exhaust valve; A fourth pipeline, one end of which is communicated with the third pipeline, and the other end of which is connected with the exhaust valve.

6. The fiber separation device for plant raw materials according to claim 4, characterized in that: The heating tank, the vaporizing tank and the fluidizing tank are spaced apart in a direction perpendicular to a horizontal plane.

7. The fiber separation device for plant raw materials according to claim 4, characterized in that: The vaporizer includes a vaporizer outlet section disposed close to 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.

8. The fiber separation device for plant raw materials according to claim 7, characterized in that: The cross-sectional area of ​​the vaporization outlet section is smaller than the throat cross-sectional area of ​​the fluidizing tank.

9. The fiber separation device for plant raw materials according to claim 7, characterized in that: In a direction perpendicular to the horizontal plane, the length of the vaporization tank is greater than that of the fluidization tank.

10. The fiber separation device for plant raw materials according to claim 7, 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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