Steam explosion device for wood fiber processing

Abstract

The utility model relates to the field of steam explosion devices, in particular to a steam explosion device for wood fiber processing, which comprises a pressure tank, a mounting frame is bolted on the upper portion of an inner cavity of the pressure tank, a movable ball is rotatably connected on the inner side of the outer portion of the mounting frame, and a rotating frame is rotatably connected on the outer side of the mounting frame. A ball groove is formed in the upper portion of the rotating frame, the surface of the ball groove is rotationally connected with the surface of the movable ball, an arc-shaped plate is bolted to the bottom of the rotating frame, a scraping plate is bolted to the outer side of the arc-shaped plate, and a turning rod is bolted to the inner side of the arc-shaped frame. Through the mounting frame, the movable ball, the rotating frame, the arc-shaped plate, the scraping plate, the turning rod and the like, the scraping plate and the turning rod can synchronously rotate in the pressure tank, the inner wall of the pressure tank is cleaned at the same time under the condition that the blasting uniformity of wood fibers is improved, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of steam explosion devices, in particular to a steam explosion device for wood fiber processing. Background Art

[0002] Steam explosion is a technology that uses the steam ejection principle to realize the explosion process to pre-treat biomass. The essence of the technology is to release the steam molecules that have penetrated into the plant tissue in a very short time, so that the internal energy of the steam is converted into mechanical energy and acts on the cell layers of the biomass tissue, thereby using less energy to decompose the raw materials as desired. Because it avoids the secondary pollution problem of chemical treatment and solves the problem of low efficiency of biological treatment, it is the most promising pre-treatment technology in the field of biomass conversion.

[0003] During the processing of wood fiber, the fibers in plant cells are bonded by lignin. Under the action of high temperature and high pressure steam environment, the crystallinity of cellulose increases, the degree of polymerization decreases, the hemicellulose is partially degraded, the lignin softens, the lateral connection strength decreases, and it even softens and becomes plastic. When the material filled with pressurized steam is suddenly depressurized, the gas in the pores expands dramatically, producing a "blasting" effect, which can partially peel off the lignin and tear the raw material into fine fibers.

[0004] After searching, a steam explosion device for wood fiber processing with publication number CN202310073020.0 is specifically disclosed, which includes a pressure tank and a sealing cover located on the pressure tank to seal it, an extension ring is embedded inside the pressure tank, a synchronous frame for guiding the wood raw materials is penetrated inside the extension ring, a locking plate is horizontally arranged inside the synchronous frame, and a plurality of material pipes are vertically arranged on the locking plate, a plurality of mesh holes are evenly penetrated on the side wall of each material pipe, and a lifting assembly for sealing the bottom end of the material pipe is horizontally arranged below the material pipe; a plurality of vertical material pipes are added in the technical solution, and mesh holes are evenly opened on the sides of the material pipes, the wood raw materials are transported to the material pipes through the synchronous frame, the material pipes can effectively increase the contact area between the wood raw materials and the steam, so that the steam can quickly penetrate into the gaps inside the fibers when the pressure increases, thereby effectively improving the steam explosion efficiency.

[0005] However, the above device still has certain defects. For example, the wood fiber itself has a high density, a soft texture, and poor steam permeability. It is difficult for the above device to fully and evenly steam explode the wood fiber. In addition, the internal steam pipeline is not convenient for adding and discharging materials. In addition, the raw materials at the edge are likely to adhere to the inner wall of the device due to extrusion, which brings difficult cleaning problems.

[0006] Therefore, it is necessary to invent a steam explosion device for wood fiber processing to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a steam explosion device for wood fiber processing, which can effectively solve the above technical problems.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a steam explosion device for wood fiber processing, comprising a pressure tank, a mounting frame is bolted to the upper part of the inner cavity of the pressure tank, the inner side of the outer side of the mounting frame is rotatably connected to a movable ball, the outer side of the mounting frame is rotatably connected to a rotating frame, a ball groove is opened on the upper part of the rotating frame, and the surface of the ball groove is rotatably connected to the surface of the movable ball, an arc plate is bolted to the bottom of the rotating frame, a scraper is bolted to the outer side of the arc plate, and a flip rod is bolted to the inner side of the arc frame, an upper part of the right side of the pressure tank is connected to an air supply pipe, and the left side of the air supply pipe passes through the pressure tank and is connected to a folding pipe, the lower part of the surface of the folding pipe is arranged in a ring and is connected to a first air outlet pipe, the other end of the first air outlet pipe is connected to a first annular groove, the four corners of the surface of the first annular groove are connected to second air outlet pipes, and the other end of the second air outlet pipe is connected to a second annular groove.

[0009] Preferably, a driving motor is bolted to the upper portion of the left side of the pressure tank, and a driving gear is bolted to the output end of the driving motor. The driving motor is used as a driving source to drive the driving gear to rotate rapidly on the left side of the pressure tank.

[0010] Preferably, a gear ring is bolted to the outer side of the rotating frame, and the surface of the gear ring meshes with the surface of the driving gear, and the rotating frame is driven to rotate inside the mounting frame through the rotation of the driving gear and the linkage with the gear ring.

[0011] Preferably, air outlet holes are respectively provided on the surfaces of the second annular groove and the first annular groove, and the steam accumulated in the first annular groove and the second annular groove is discharged through the air outlet holes.

[0012] Preferably, a feeding pipe is connected to the left side of the top of the pressure tank, and a guide plate is bolted to the upper part of the left side of the inner cavity of the pressure tank, so that the user can put the wood fiber into the pressure tank through the feeding pipe, and guide the wood fiber to be processed to the middle blasting area of ​​the inner cavity of the pressure tank through the guide plate.

[0013] Preferably, a discharge valve is provided at the center of the bottom of the pressure tank, so that the device can discharge the processed wood fibers by opening and closing the discharge valve.

[0014] Preferably, a solenoid valve is connected to the middle of the air supply pipe, so that the user can control the opening and closing of the air supply pipe through the solenoid valve.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. By installing the frame, movable ball, rotating frame, curved plate, scraper, flip rod and other components, the scraper and flip rod can be rotated synchronously inside the pressure tank, while improving the uniformity of wood fiber blasting, the inner wall of the pressure tank is cleaned at the same time, thereby improving the working efficiency of the device;

[0017] 2. Through the air supply pipe, the folding pipe, the first air outlet pipe, the second air outlet pipe and other components, the air is discharged from the air outlet through the increase of air pressure to blast the surrounding wood fibers. Since the first annular groove and the second annular groove increase the explosion range of the overall steam, the working efficiency of the steam explosion device is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a front view of the overall structure of the utility model;

[0020] Figure 2 This is a bottom view of the internal connection structure of the pressure tank of the utility model;

[0021] Figure 3 It is a bottom view of the connection structure of the first annular groove and the second annular groove of the utility model;

[0022] Figure 4 For the utility model Figure 1 A magnified view of the structure in the middle.

[0023] Description of reference numerals:

[0024] 1. Pressure tank; 2. Mounting frame; 3. Movable ball; 4. Rotating frame; 5. Ball groove; 6. Arc plate; 7. Scraper; 8. Flip rod; 9. Air supply pipe; 10. Folding pipe; 11. First air outlet pipe; 12. First annular groove; 13. Second air outlet pipe; 14. Second annular groove; 15. Driving motor; 16. Driving gear; 17. Gear ring; 18. Air outlet; 19. Feeding pipe; 20. Drainage plate; 21. Unloading valve; 22. Solenoid valve. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-4A steam explosion device for wood fiber processing shown in the figure includes a pressure tank 1, a mounting frame 2 is bolted to the upper part of the inner cavity of the pressure tank 1, a movable ball 3 is rotatably connected to the inner side of the outside of the mounting frame 2, a rotating frame 4 is rotatably connected to the outer side of the mounting frame 2, a ball groove 5 is opened on the upper part of the rotating frame 4, and the surface of the ball groove 5 is rotatably connected to the surface of the movable ball 3, an arc plate 6 is bolted to the bottom of the rotating frame 4, a scraper 7 is bolted to the outer side of the arc plate 6, and a flip rod 8 is bolted to the inner side of the arc frame, an air supply pipe 9 is connected to the upper part of the right side of the pressure tank 1, and a folding pipe 10 is connected to the left side of the air supply pipe 9 through the pressure tank 1, and a first air outlet pipe 11 is connected to the lower part of the surface of the folding pipe 10 in a ring arrangement, and the other end of the first air outlet pipe 11 is connected to a first annular groove 12, and the four corners of the surface of the first annular groove 12 are connected to second air outlet pipes 13, and the other end of the second air outlet pipe 13 is connected to a second annular groove 14.

[0027] A driving motor 15 is bolted to the upper portion of the left side of the pressure tank 1 , and a driving gear 16 is bolted to the output end of the driving motor 15 . The driving motor 15 is used as a driving source to drive the driving gear 16 to rotate rapidly on the left side of the pressure tank 1 .

[0028] A gear ring 17 is bolted to the outer side of the rotating frame 4 , and the surface of the gear ring 17 meshes with the surface of the driving gear 16 . The driving gear 16 rotates and the gear ring 17 is linked to drive the rotating frame 4 to rotate inside the mounting frame 2 .

[0029] The surfaces of the second annular groove 14 and the first annular groove 12 are respectively provided with air outlet holes 18 , through which the steam accumulated in the first annular groove 12 and the second annular groove 14 is discharged.

[0030] A feeding pipe 19 is connected to the left side of the top of the pressure tank 1, and a guide plate 20 is bolted to the upper part of the left side of the inner cavity of the pressure tank 1, so that the user can put the wood fiber into the pressure tank 1 through the feeding pipe 19, and guide the wood fiber to be processed to the middle blasting area of ​​the inner cavity of the pressure tank 1 through the guide plate 20.

[0031] A discharge valve 21 is provided at the center of the bottom of the pressure tank 1 , so that the device can discharge the processed wood fibers by opening and closing the discharge valve 21 .

[0032] The middle part of the air supply pipe 9 is connected with a solenoid valve 22 , so that the user can control the opening and closing of the air supply pipe 9 through the solenoid valve 22 .

[0033] Refer to the instruction manual Figure 1-4Working principle: by installing the frame 2, the movable ball 3, the rotating frame 4, the arc plate 6, the scraper 7, the flipping rod 8 and other components, the driving motor 15 can be driven to drive the driving gear 16 to drive the rotating frame 4 to rotate through the gear ring 17. At this time, the rotating frame 4 rotates rapidly inside the mounting frame 2 through the movable ball 3. While the rotating frame 4 rotates, the arc plate 6 can simultaneously drive the scraper 7 and the flipping rod 8 to rotate in the pressure tank 1. The flipping rod 8 can assist the blasting mechanism to continuously flip the wood fibers in the pressure tank 1, and the scraper 7 can scrape off the wood fiber debris on the inner wall of the pressure tank 1 due to the adhesion of the steam liquid, which can improve the uniformity of the wood fiber blasting while the inner wall of the pressure tank 1 is being blasted. Cleaning improves the working efficiency of the device. Through the air supply pipe 9, the folding pipe 10, the first air outlet pipe 11, the second air outlet pipe 13 and other components, when the device is in use, open the solenoid valve 22, so that the steam can be filled into the folding pipe 10 through the air supply pipe 9, and transmitted to the first annular groove 12 through the folding pipe 10 and the first air outlet pipe 11, and then the steam in the first annular groove 12 will be output to the second annular groove 14 through the second air outlet pipe 13, and finally the steam is discharged from the air outlet 18 through the increase of air pressure, and the surrounding wood fibers are blasted. Since the blasting range of the overall steam is increased by the first annular groove 12 and the second annular groove 14, the working efficiency of the steam blasting device is effectively improved.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steam explosion device for wood fiber processing, comprising a pressure tank (1), characterized in that: The upper part of the inner cavity of the pressure tank (1) is bolted with a mounting frame (2), the inner side of the outer part of the mounting frame (2) is rotatably connected to a movable ball (3), the outer side of the mounting frame (2) is rotatably connected to a rotating frame (4), the upper part of the rotating frame (4) is provided with a ball groove (5), and the surface of the ball groove (5) is rotatably connected to the surface of the movable ball (3), the bottom of the rotating frame (4) is bolted with an arc plate (6), the outer side of the arc plate (6) is bolted with a scraper (7), and the inner side of the arc plate is bolted with a flip rod. (8), the upper part of the right side of the pressure tank (1) is connected to an air supply pipe (9), the left side of the air supply pipe (9) passes through the pressure tank (1) and is connected to a folding tube (10), the lower part of the surface of the folding tube (10) is connected to a first air outlet pipe (11) in an annular arrangement, the other end of the first air outlet pipe (11) is connected to a first annular groove (12), the four corners of the surface of the first annular groove (12) are connected to a second air outlet pipe (13), and the other end of the second air outlet pipe (13) is connected to a second annular groove (14).

2. A steam explosion device for wood fiber processing according to claim 1, characterized in that: A drive motor (15) is bolted to the upper portion of the left side of the pressure tank (1), and a drive gear (16) is bolted to the output end of the drive motor (15).

3. A steam explosion device for wood fiber processing according to claim 1, characterized in that: A gear ring (17) is bolted to the outer side of the rotating frame (4), and the surface of the gear ring (17) meshes with the surface of the driving gear (16).

4. A steam explosion device for wood fiber processing according to claim 1, characterized in that: Air outlet holes (18) are distributed on the surfaces of the second annular groove (14) and the first annular groove (12).

5. A steam explosion device for wood fiber processing according to claim 1, characterized in that: The left side of the top of the pressure tank (1) is connected to a feeding pipe (19), and the upper part of the left side of the inner cavity of the pressure tank (1) is bolted to a drainage plate (20).

6. A steam explosion device for wood fiber processing according to claim 1, characterized in that: A discharge valve (21) is provided at the centre of the bottom of the pressure tank (1).

7. A steam explosion device for wood fiber processing according to claim 1, characterized in that: The middle portion of the air supply pipe (9) is connected to a solenoid valve (22).

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