Raw material pretreatment device for lignocellulose processing

Abstract

The invention discloses a raw material pretreatment device for lignocellulose processing. The raw material pretreatment device comprises a soaking barrel, a primary crusher and a secondary crusher, a piston disc capable of moving in the axial direction is arranged in the soaking barrel, a closed soaking cavity can be formed between the piston disc and the soaking barrel and between the first flap valve and the second flap valve, a movable carrying plate parallel to the piston disc is arranged on the side, away from the soaking cavity, in the soaking barrel, and an air supply pipe is arranged between the movable carrying plate and the piston disc; the air supply pipe is connected with an external air supply device and can introduce air into the soaking cavity, so that the pressure of the soaking cavity is increased, the soaking speed of soaking liquid in the soaking cavity into the wood can be increased, and therefore the soaking efficiency of the wood is improved. Wood enters the soaking barrel to be soaked after being primarily crushed by the primary crusher, the soaked wood is discharged out of the soaking barrel and is directly secondarily crushed by the secondary crusher, and a good crushing effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of lignocellulose processing, and in particular relates to a raw material pretreatment device for lignocellulose processing. Background Art

[0002] Lignocellulose is an organic flocculent fiber material obtained by chemical treatment and mechanical processing of natural renewable wood. It is non-toxic, odorless, pollution-free, non-radioactive, and has high chemical stability. It is not corroded by general solvents, acids, and alkalis. It is widely used in concrete mortar, gypsum products, wood pulp sponge, asphalt roads and other fields. It can effectively prevent coating cracking, improve water retention, enhance production stability and construction suitability, increase strength and enhance adhesion to the surface. It is an indispensable additive in these fields.

[0003] Before extracting wood cellulose, the wood raw materials need to be soaked and then crushed to facilitate the subsequent steaming and extraction of wood cellulose solution. The soaking time of the wood raw materials depends on the type of wood and the process requirements, and is generally 12-24 hours. This process takes a long time and the wood needs to be transferred and crushed later. The process is time-consuming and relatively troublesome. Therefore, there is an urgent need for a comprehensive device that can efficiently perform soaking and crushing processes to shorten the duration of the process. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention creatively adopts a raw material pretreatment device for lignocellulose processing to at least partially solve the problems raised in the above background technology.

[0005] The technical solution adopted is as follows: The present invention proposes a raw material pretreatment device for lignocellulose processing, comprising: The soaking cylinder is configured as a hollow cylinder, and the central axis of the soaking cylinder is horizontally fixed on the bracket; A primary crusher is arranged on the top of the soaking cylinder, and a discharge end of the primary crusher is connected to the soaking cylinder; A secondary crusher is arranged at the bottom of the soaking cylinder, and a feeding end of the secondary crusher is connected to the soaking cylinder; Wherein, a first flap valve is provided at the connection between the soaking cylinder and the primary crusher, a first driver for opening / closing the first flap valve is fixedly provided on the outer wall of the soaking cylinder, a second flap valve is provided at the connection between the soaking cylinder and the secondary crusher, a second driver for opening / closing the second flap valve is fixedly provided on the outer wall of the soaking cylinder, a piston disk which can move axially is provided in the soaking cylinder, a closed soaking chamber can be formed between the piston disk and the soaking cylinder, the first flap valve and the second flap valve, a movable carrier plate parallel to the piston disk is provided on the side of the soaking cylinder away from the soaking chamber, an air supply pipe is provided between the movable carrier plate and the piston disk, the air supply pipe is connected to an external air supply device, and can introduce gas into the soaking chamber to increase the pressure of the soaking chamber.

[0006] Further, a first connecting cylinder is fixedly provided in the soaking cylinder at a position corresponding to the primary crusher, the first flap valve is rotatably mounted at the bottom end of the first connecting cylinder, the primary crusher is fixedly arranged on the outer side wall of the soaking cylinder, and the lower end of the primary crusher is connected to the upper end of the first connecting cylinder; A feed hopper is provided on the top of the primary crusher, a crushing roller group for crushing wood is provided inside the primary crusher, a roller group driver is fixedly provided on the outer side wall of the primary crusher, the roller group driver is transmission-connected with the crushing roller group, and is used to drive the crushing roller group to rotate, so that the wood entering the primary crusher is crushed.

[0007] Further, a second connecting cylinder is fixedly provided at the bottom of the soaking cylinder corresponding to the secondary crusher, the second flap valve is rotatably mounted on the inner top of the second connecting cylinder, the secondary crusher is fixedly arranged at the bottom of the second connecting cylinder, and the upper end of the secondary crusher is connected to the lower end of the second connecting cylinder; A crushing disc group for crushing wood is arranged inside the secondary crusher, and a crushing disc driver is fixedly arranged on the outer wall of the secondary crusher. The crushing disc driver is transmission-connected with the crushing disc group and is used for driving the crushing disc group to rotate, so that the wood entering the secondary crusher is crushed.

[0008] Furthermore, the crushing disc group includes a plurality of movable crushing discs and fixed crushing discs which are arranged in parallel in the secondary crusher, and the movable crushing discs and the fixed crushing discs are alternately arranged along the arrangement direction, the fixed crushing disc is fixedly arranged on the inner wall of the secondary crusher, the movable crushing disc is coaxially arranged with the fixed crushing disc, and the plurality of movable crushing discs are fixedly connected to the output shaft of the crushing disc driver, so that the movable crushing disc can rotate relative to the fixed crushing disc.

[0009] Furthermore, a composite filter plate frame is fixedly provided on the side of the piston disc facing the immersion chamber, a mesh plate and a filter plate are fixedly provided on the inner side of the composite filter plate frame, the mesh plate is located on the side close to the immersion chamber, a guide chamber is provided between the filter plate and the piston disc, a connecting hose is fixedly provided on the piston disc, the other end of the connecting hose is connected to an external liquid supply device, and a solenoid valve is fixedly provided at the connection between the connecting hose and the piston disc, and the solenoid valve is used to open and close the connecting hose.

[0010] Furthermore, the guide cavity is configured as a disc-shaped cavity, the solenoid valve is located at the bottom end of the guide cavity, the thickness of the mesh plate is greater than the thickness of the filter plate, the mesh plate is provided with a plurality of evenly distributed through holes, the aperture of the through holes is greater than the aperture of the mesh on the filter plate, and a sealing ring is installed on the side wall where the piston disc is in contact with the inner wall of the soaking cylinder to maintain a seal between the piston disc and the soaking cylinder.

[0011] Furthermore, a screw drive is fixedly provided on a side of the movable carrier away from the piston disk, a screw is fixedly provided on the output end of the screw drive, a side baffle is fixedly provided on an end portion of the soaking cylinder away from the soaking chamber, a screw sleeve seat is fixedly provided on the side baffle corresponding to the screw, the screw passes through the screw sleeve seat, and the screw is transmission-connected to the screw sleeve seat, the screw is driven to rotate by the screw drive, and the position of the movable carrier in the soaking cylinder is adjusted.

[0012] Furthermore, a mounting plate is provided on the outer side of the soaking cylinder corresponding to the side baffle, and the mounting plate is distributed parallel to the side baffle. The end of the screw rod is rotatably mounted on the mounting plate, and the screw rod is located on the axis of the soaking cylinder. A plurality of guide rods are provided on the circumference of the screw rod, one end of the guide rod is fixedly connected to the movable carrier plate, and the other end passes through the side baffle and is fixedly connected to the mounting plate.

[0013] Furthermore, the crushing roller group includes more than two groups of crushing rollers arranged in the height direction, each group is provided with more than two crushing rollers distributed in parallel, and the two adjacent groups of crushing rollers in the height direction are staggered in the horizontal direction.

[0014] Furthermore, a discharge channel is provided on the side of the crushing disc group facing the second connecting cylinder, and a horizontal feed channel is provided at the bottom end of the crushing disc group, the angle between the feed channel and the discharge channel is set to ninety degrees, and the crushing disc group is distributed at the connection between the feed channel and the discharge channel.

[0015] The beneficial effects achieved by the present invention are as follows: (1) The present invention combines a soaking cylinder with a crusher, and arranges a primary crusher and a secondary crusher on one side of the soaking cylinder. The wood is initially crushed by the primary crusher and then enters the soaking cylinder for soaking, ensuring that the size of the wood before entering the soaking chamber is approximately the same, so that the degree of soaking of the wood in the soaking liquid is more uniform. The soaked wood is discharged from the soaking cylinder and is directly crushed for the second time by the secondary crusher, thereby achieving a better crushing effect.

[0016] (2) By arranging a movable piston disk in the soaking cylinder, the piston disk is connected to an external air and water supply device, so that gas can be introduced into the soaking chamber to increase the pressure in the soaking chamber. The soaking liquid in the soaking chamber will accelerate the speed of soaking into the wood, thereby improving the soaking efficiency of the wood. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a raw material pretreatment device for lignocellulose processing proposed in an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of a raw material pretreatment device for lignocellulose processing proposed in an embodiment of the present invention; Figure 3 A schematic side view of a raw material pretreatment device for lignocellulose processing proposed in an embodiment of the present invention; Figure 4 for Figure 3 Schematic diagram of the internal structure; Figure 5 A schematic diagram of the disassembled structure of the piston disc proposed in an embodiment of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the piston disc proposed in an embodiment of the present invention.

[0018] Among them, 10, soaking cylinder; 100, soaking chamber; 101, first connecting cylinder; 102, second connecting cylinder; 11, side baffle; 111, screw sleeve seat; 12, first flap valve; 121, first driver; 13, second flap valve; 131, second driver; 20, primary crusher; 201, feed hopper; 21, crushing roller group; 22, roller group driver; 30, secondary crusher; 301, feed channel; 302, discharge Channel; 31, crushing disc group; 311, movable crushing disc; 312, fixed crushing disc; 32, crushing disc driver; 40, bracket; 50, piston disc; 500, guide chamber; 51, composite filter plate frame; 511, mesh plate; 512, filter plate; 52, solenoid valve; 53, connecting hose; 60, movable carrier plate; 61, air supply pipe; 62, screw driver; 621, screw; 622, guide rod; 63, mounting plate.

[0019] The accompanying drawings are used to provide further understanding of the embodiments and constitute a part of the specification. They are used for explanation together with the embodiments and do not constitute a limitation of the embodiments. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection.

[0021] In the description of the embodiments, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments.

[0022] The embodiment of the present invention provides a raw material pretreatment device for wood cellulose processing, aiming to shorten the soaking and crushing process time during wood pretreatment. The device mainly includes a soaking cylinder 10, a primary crusher 20 and a secondary crusher 30.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the soaking cylinder 10 is configured as a hollow cylinder, and the central axis of the soaking cylinder 10 is fixed on the bracket 40 along the horizontal direction, the primary crusher 20 is arranged at the top of the soaking cylinder 10, and the discharge end of the primary crusher 20 is connected to the soaking cylinder 10, and the secondary crusher 30 is arranged at the bottom of the soaking cylinder 10, and the feed end of the secondary crusher 30 is connected to the soaking cylinder 10.

[0024] Furthermore, a first flap valve 12 is provided at the connection between the soaking cylinder 10 and the primary crusher 20, and a first driver 121 for opening / closing the first flap valve 12 is fixedly provided on the outer wall of the soaking cylinder 10; a second flap valve 13 is provided at the connection between the soaking cylinder 10 and the secondary crusher 30, and a second driver 131 for opening / closing the second flap valve 13 is fixedly provided on the outer wall of the soaking cylinder 10; a piston disk 50 capable of moving axially is provided in the soaking cylinder 10, and when the first flap valve 12 and the second flap valve 13 are both in a closed state, a closed soaking chamber 100 can be formed between the piston disk 50 and the soaking cylinder 10, the first flap valve 12 and the second flap valve 13.

[0025] In some embodiments, the first driver 121 and the second driver 131 can both be driven by a motor, and the motor's forward and reverse rotation is used to drive the flap valve to perform a flipping motion, so that the flap valve forms the immersion chamber 100 into a closed cavity or an open cavity. After the immersion chamber 100 is filled with immersion liquid and wood, when the immersion chamber 100 is a closed cavity, pressurizing the immersion chamber 100 can promote the immersion liquid to penetrate into the wood, thereby shortening the time of the wood immersion process.

[0026] Further, such as Figure 2 As shown, in order to pressurize the soaking liquid in the soaking chamber 100, a movable carrier plate 60 parallel to the piston disk 50 is provided on the side of the soaking cylinder 10 away from the soaking chamber 100, and an air supply pipe 61 is provided between the movable carrier plate 60 and the piston disk 50. The air supply pipe 61 is connected to an external air supply device, and can pass gas into the soaking chamber 100 to increase the pressure of the soaking chamber 100. In this case, the soaking liquid in the soaking chamber 100 will accelerate the speed of soaking into the wood, thereby improving the soaking efficiency of the wood.

[0027] In some embodiments, a first connecting cylinder 101 is fixedly provided in the soaking cylinder 10 at a position corresponding to the primary crusher 20, and a first flap valve 12 is rotatably installed at the bottom end of the first connecting cylinder 101. The primary crusher 20 is fixedly provided on the outer wall of the soaking cylinder 10, and the lower end of the primary crusher 20 is connected with the upper end of the first connecting cylinder 101. In this way, in order to enable the volume of the wood to be initially crushed and to ensure that the size of the wood before entering the soaking chamber 100 is approximately consistent, the degree of uniformity of the immersion of the wood in the soaking liquid is made approximately consistent.

[0028] Furthermore, a feed hopper 201 is provided on the top of the primary crusher 20, a crushing roller group 21 for crushing wood is provided inside the primary crusher 20, a roller group driver 22 is fixedly provided on the outer wall of the primary crusher 20, the roller group driver 22 is transmission-connected to the crushing roller group 21, and is used to drive the crushing roller group 21 to rotate, so that the wood entering the primary crusher 20 is crushed.

[0029] In this way, before entering the soaking chamber 100, the wood will be crushed by the primary crusher 20 in advance. The wood enters the primary crusher 20 from the feed hopper 201 and contacts the crushing roller group 21 arranged in the primary crusher 20. The crushing roller group 21 includes more than two groups of crushing rollers arranged in the height direction, each group is provided with more than two parallel distributed crushing rollers, and the two adjacent groups of crushing rollers in the height direction are staggered in the horizontal direction. The wood is preliminarily crushed through the staggered channels between the crushing rollers, so that wood of different sizes is crushed into material blocks of similar size.

[0030] During the initial crushing stage of the wood, the first flap valve 12 on the first connecting cylinder 101 is opened by the first driver 121, so that the crushed wood in the primary crusher 20 can drop directly into the soaking chamber 100 through the first connecting cylinder 101. When all the wood has passed the initial crushing of the primary crusher 20, the first driver 121 is used to close the first flap valve 12 to close the channel connecting the primary crusher 20 and the soaking cylinder 10.

[0031] like Figure 1 , Figure 2 and Figure 4 As shown, a second connecting cylinder 102 is fixedly provided at the bottom of the soaking cylinder 10 corresponding to the secondary crusher 30, the second flap valve 13 is rotatably installed on the inner top of the second connecting cylinder 102, the secondary crusher 30 is fixedly arranged at the bottom of the second connecting cylinder 102, and the upper end of the secondary crusher 30 is connected to the lower end of the second connecting cylinder 102.

[0032] In some embodiments, the second flap valve 13 is a curved plate, and when the second flap valve 13 is closed, the second flap valve 13 and the inner wall of the soaking cylinder 10 are smoothly transitioned.

[0033] Furthermore, a crushing disc group 31 for crushing wood is provided inside the secondary crusher 30, and a crushing disc driver 32 is fixedly provided on the outer wall of the secondary crusher 30. The crushing disc driver 32 is transmission-connected to the crushing disc group 31 and is used to drive the crushing disc group 31 to rotate, so that the wood entering the secondary crusher 30 is crushed.

[0034] Furthermore, the crushing disk group 31 includes a plurality of movable crushing disks 311 and a fixed crushing disk 312 which are arranged in parallel in the secondary crusher 30, and the movable crushing disks 311 and the fixed crushing disks 312 are alternately arranged along the arrangement direction, the fixed crushing disk 312 is fixedly arranged on the inner wall of the secondary crusher 30, the movable crushing disk 311 is coaxially arranged with the fixed crushing disk 312, and the plurality of movable crushing disks 311 are fixedly connected to the output shaft of the crushing disk driver 32, so that the movable crushing disk 311 can rotate relative to the fixed crushing disk 312.

[0035] In some embodiments, evenly distributed crushing teeth are provided on the surface walls of the movable crushing disk 311 and the fixed crushing disk 312. At the same time, a fixed gap is provided between the movable crushing disk 311 and the fixed crushing disk 312, and the gap is smaller than the gap between the crushing roller groups 21. After the wood that has been initially crushed and soaked enters the secondary crusher 30, it is secondary crushed by the relative rotation between the movable crushing disk 311 and the fixed crushing disk 312, so that the soaked wood is further crushed to facilitate subsequent cooking and extraction of wood cellulose. Since the shape and size of the wood are basically the same after the initial crushing, the soaking effect after soaking is also basically the same. When the secondary crushing is performed in the secondary crusher 30, a better crushing effect can be achieved.

[0036] Furthermore, a discharge channel 302 is provided on the side of the crushing disc group 31 facing the second connecting cylinder 102, and a horizontal feed channel 301 is provided at the bottom end of the crushing disc group 31. The angle between the feed channel 301 and the discharge channel 302 is set to ninety degrees. The crushing disc group 31 is distributed at the connection between the feed channel 301 and the discharge channel 302. In this way, the crushed wood will first enter the feed channel 301. After entering the feed channel 301, the wood will contact the crushing disc group 31 and be crushed for the second time by the relative rotation between the movable crushing disc 311 and the fixed crushing disc 312. The wood after the second crushing will be thrown out by the movable crushing disc 311 into the discharge channel 302 and discharged from the port of the discharge channel 302.

[0037] like Figure 2 , Figure 5 and Figure 6 As shown, a composite filter plate frame 51 is fixedly provided on the side of the piston disc 50 facing the soaking chamber 100, a mesh plate 511 and a filter plate 512 are fixedly provided on the inner side of the composite filter plate frame 51, the mesh plate 511 is located on the side close to the soaking chamber 100, a guide chamber 500 is provided between the filter plate 512 and the piston disc 50, a connecting hose 53 is fixedly provided on the piston disc 50, the other end of the connecting hose 53 is connected to an external liquid supply device, and a solenoid valve 52 is fixedly provided at the connection between the connecting hose 53 and the piston disc 50, and the solenoid valve 52 is used to open and close the connecting hose 53.

[0038] Among them, the external liquid supply device can not only provide soaking liquid to the soaking chamber 100, but also suck and discharge the soaking liquid in the soaking chamber 100. After the wood is initially crushed by the primary crusher 20 and enters the soaking chamber 100, the solenoid valve 52 is opened, and the external liquid supply device provides soaking liquid to the soaking chamber 100 through the connecting hose 53 until the wood is soaked or submerged, and then the solenoid valve 52 is closed, and then gas is introduced into the soaking chamber 100 through the air supply pipe 61 to increase the pressure of the soaking chamber 100. In this case, the soaking liquid in the soaking chamber 100 will accelerate the speed of soaking into the wood, thereby improving the soaking efficiency of the wood. When the soaking is completed, the solenoid valve 52 is opened, and the soaking liquid in the soaking chamber 100 is sucked and discharged by the liquid supply device. Under the action of the mesh plate 511 and the filter plate 512, the wood is blocked in the soaking chamber 100.

[0039] In some embodiments, the diversion chamber 500 is configured as a disc-shaped chamber, the solenoid valve 52 is located at the bottom end of the diversion chamber 500, the thickness of the mesh plate 511 is greater than the thickness of the filter plate 512, and the mesh plate 511 is provided with a plurality of evenly distributed through holes, the aperture of the through holes is greater than the aperture of the mesh on the filter plate 512, and a sealing ring is installed on the side wall where the piston disk 50 and the inner wall of the soaking cylinder 10 are in contact, so that the piston disk 50 and the soaking cylinder 10 are kept sealed. Since the diversion chamber 500 is configured as a disc shape and the solenoid valve 52 is located at the bottom end of the diversion chamber 500, when the soaking liquid in the soaking chamber 100 is sucked, the soaking liquid in the soaking chamber 100 can be drained, and the composite filter plate composed of the mesh plate 511 and the filter plate 512 can block the wood in the soaking chamber 100, waiting for subsequent secondary crushing.

[0040] like Figure 1 and Figure 2 As shown, a screw drive 62 is fixedly provided on the side of the movable carrier 60 away from the piston disk 50, a screw 621 is fixedly provided on the output end of the screw drive 62, a side baffle 11 is fixedly provided on the end of the soaking cylinder 10 away from the soaking chamber 100, a screw sleeve seat 111 is fixedly provided on the side baffle 11 at a position corresponding to the screw 621, the screw 621 passes through the screw sleeve seat 111, and the screw 621 is transmission-connected with the screw sleeve seat 111, the screw 621 is driven to rotate by the screw driver 62, and the position of the movable carrier 60 in the soaking cylinder 10 is adjusted.

[0041] In some embodiments, the screw drive 62 can be driven by a motor, and the output shaft of the motor drives the screw 621 to rotate. Since the screw 621 is meshed with the screw sleeve seat 111 for transmission, when the screw sleeve seat 111 is fixed, the screw 621 moves relative to the screw sleeve seat 111, so that the movable carrier plate 60 can move in the moving direction of the screw 621 to adjust the position of the piston disk 50 in the soaking cylinder 10, thereby compressing or expanding the soaking chamber 100. When the wood is soaked, the screw drive 62 drives the screw 621 to adjust the position of the piston disk 50, so that the piston disk 50 pushes the soaked wood to move toward the secondary crusher 30. After drainage is completed, the second flap valve 13 can be opened, and the piston disk 50 continues to push the wood, pushing the wood into the feed channel 301, so that the secondary crusher 30 performs secondary crushing on the soaked wood.

[0042] Furthermore, in order to make the movement of the movable carrier 60 more stable, a mounting plate 63 is provided on the outer side of the soaking cylinder 10 corresponding to the side baffle 11, and the mounting plate 63 is distributed parallel to the side baffle 11. The end of the screw rod 621 is rotatably mounted on the mounting plate 63, and the screw rod 621 is located on the axis of the soaking cylinder 10. A plurality of guide rods 622 are provided on the circumference of the screw rod 621, one end of the guide rod 622 is fixedly connected to the movable carrier 60, and the other end passes through the side baffle 11 and is fixedly connected to the mounting plate 63. In some embodiments, three guide rods 622 are provided, and the three guide rods 622 are symmetrically distributed. By providing the guide rods 622 distributed on the circumference of the screw rod 621, the transmission process of the screw rod 621 can be made more stable, and the movement of the piston disk 50 and the movable carrier 60 can be made more stable.

[0043] In some embodiments, the guide rod 622 can be configured as a hollow tube structure, and the air guide passage or the water guide passage connecting the air supply pipe 61 and the connecting hose 53 can pass through the guide rod 622 .

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above description of the implementation mode is not restrictive, and the drawings show only one of the implementation modes, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the scope of protection.

Claims

1. A raw material pretreatment device for lignocellulose processing, characterized in that: include: The soaking cylinder (10) is configured as a hollow cylindrical body, and the central axis of the soaking cylinder (10) is fixed on the bracket (40) along the horizontal direction; A primary crusher (20) is arranged on the top of the soaking cylinder (10), and a discharge end of the primary crusher (20) is connected to the soaking cylinder (10); A secondary crusher (30) is arranged at the bottom of the soaking cylinder (10), and a feeding end of the secondary crusher (30) is connected to the soaking cylinder (10); A first flap valve (12) is provided at the connection between the soaking cylinder (10) and the primary crusher (20); a first driver (121) for opening / closing the first flap valve (12) is fixedly provided on the outer wall of the soaking cylinder (10); a second flap valve (13) is provided at the connection between the soaking cylinder (10) and the secondary crusher (30); a second driver (131) for opening / closing the second flap valve (13) is fixedly provided on the outer wall of the soaking cylinder (10); a piston disc (131) which can move in the axial direction is provided in the soaking cylinder (10); 50), a closed soaking chamber (100) can be formed between the piston disc (50) and the soaking cylinder (10), the first flap valve (12) and the second flap valve (13); a movable carrier plate (60) is provided on a side of the soaking cylinder (10) away from the soaking chamber (100) and is distributed parallel to the piston disc (50); an air supply pipe (61) is provided between the movable carrier plate (60) and the piston disc (50); the air supply pipe (61) is connected to an external air supply device and can pass gas into the soaking chamber (100) to increase the pressure of the soaking chamber (100).

2. The raw material pretreatment device for lignocellulose processing according to claim 1, characterized in that: A first connecting cylinder (101) is fixedly provided in the soaking cylinder (10) at a position corresponding to the primary crusher (20); the first flap valve (12) is rotatably mounted on the bottom end of the first connecting cylinder (101); the primary crusher (20) is fixedly arranged on the outer wall of the soaking cylinder (10), and the lower end of the primary crusher (20) is in communication with the upper end of the first connecting cylinder (101); A feed hopper (201) is provided on the top of the primary crusher (20), a crushing roller group (21) for crushing wood is provided inside the primary crusher (20), and a roller group driver (22) is fixedly provided on the outer wall of the primary crusher (20), the roller group driver (22) being in driving connection with the crushing roller group (21) and being used to drive the crushing roller group (21) to rotate, so that the wood entering the primary crusher (20) is crushed.

3. The raw material pretreatment device for lignocellulose processing according to claim 1, characterized in that: A second connecting cylinder (102) is fixedly provided at the bottom of the soaking cylinder (10) corresponding to the secondary crusher (30); the second flap valve (13) is rotatably mounted on the inner top of the second connecting cylinder (102); the secondary crusher (30) is fixedly arranged at the bottom of the second connecting cylinder (102), and the upper end of the secondary crusher (30) is in communication with the lower end of the second connecting cylinder (102); A crushing disc group (31) for crushing wood is provided inside the secondary crusher (30), and a crushing disc driver (32) is fixedly provided on the outer wall of the secondary crusher (30). The crushing disc driver (32) is in driving connection with the crushing disc group (31) and is used to drive the crushing disc group (31) to rotate, so that the wood entering the secondary crusher (30) is crushed.

4. The raw material pretreatment device for lignocellulose processing according to claim 3, characterized in that: The crushing disc group (31) comprises a plurality of movable crushing discs (311) and fixed crushing discs (312) arranged in parallel in the secondary crusher (30), and the movable crushing discs (311) and the fixed crushing discs (312) are arranged alternately along an arrangement direction, the fixed crushing discs (312) are fixedly arranged on the inner wall of the secondary crusher (30), the movable crushing disc (311) and the fixed crushing disc (312) are coaxially arranged, and the plurality of movable crushing discs (311) are fixedly connected to an output shaft of the crushing disc driver (32), so that the movable crushing discs (311) can rotate relative to the fixed crushing discs (312).

5. The raw material pretreatment device for lignocellulose processing according to claim 1, characterized in that: A composite filter plate frame (51) is fixedly provided on the side of the piston disc (50) facing the soaking chamber (100), a mesh plate (511) and a filter plate (512) are fixedly provided on the inner side of the composite filter plate frame (51), the mesh plate (511) is located on the side close to the soaking chamber (100), a flow guide chamber (500) is provided between the filter plate (512) and the piston disc (50), a connecting hose (53) is fixedly provided on the piston disc (50), the other end of the connecting hose (53) is connected to an external liquid supply device, and a solenoid valve (52) is fixedly provided at the connection between the connecting hose (53) and the piston disc (50), the solenoid valve (52) being used to open and close the connecting hose (53).

6. The raw material pretreatment device for lignocellulose processing according to claim 5, characterized in that: The flow guide cavity (500) is configured as a disc-shaped cavity, the solenoid valve (52) is located at the bottom end of the flow guide cavity (500), the thickness of the mesh plate (511) is greater than the thickness of the filter plate (512), the mesh plate (511) is provided with a plurality of evenly distributed through holes, the aperture of the through holes is greater than the aperture of the mesh holes on the filter plate (512), and a sealing ring is installed on the side wall of the piston disc (50) that is in contact with the inner wall of the soaking cylinder (10), so that the piston disc (50) and the soaking cylinder (10) are sealed.

7. The raw material pretreatment device for lignocellulose processing according to claim 1, characterized in that: A screw drive (62) is fixedly provided on a side of the movable carrier plate (60) away from the piston disc (50); a screw (621) is fixedly provided on an output end of the screw drive (62); a side baffle (11) is fixedly provided on an end of the soaking cylinder (10) away from the soaking chamber (100); a screw sleeve seat (111) is fixedly provided on the side baffle (11) at a position corresponding to the screw (621); the screw (621) passes through the screw sleeve seat (111), and the screw (621) is transmission-connected to the screw sleeve seat (111); the screw drive (62) drives the screw (621) to rotate, thereby adjusting the position of the movable carrier plate (60) in the soaking cylinder (10).

8. The raw material pretreatment device for lignocellulose processing according to claim 7, characterized in that: A mounting plate (63) is provided on the outer side of the soaking cylinder (10) corresponding to the side baffle (11); the mounting plate (63) is arranged parallel to the side baffle (11); the end of the screw rod (621) is rotatably mounted on the mounting plate (63); the screw rod (621) is located on the axis of the soaking cylinder (10); a plurality of guide rods (622) are provided around the screw rod (621); one end of the guide rod (622) is fixedly connected to the movable carrier plate (60); and the other end passes through the side baffle (11) and is fixedly connected to the mounting plate (63).

9. The raw material pretreatment device for lignocellulose processing according to claim 2, characterized in that: The crushing roller group (21) comprises more than two groups of crushing rollers arranged in the height direction, each group is provided with more than two crushing rollers distributed in parallel, and two groups of crushing rollers adjacent in the height direction are staggered in the horizontal direction.

10. The raw material pretreatment device for lignocellulose processing according to claim 3, characterized in that: A discharge channel (302) is provided on a side of the crushing disc group (31) facing the second connecting cylinder (102), and a horizontal feed channel (301) is provided at the bottom end of the crushing disc group (31), the angle between the feed channel (301) and the discharge channel (302) is set to ninety degrees, and the crushing disc group (31) is distributed at the connection between the feed channel (301) and the discharge channel (302).

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