Raw material crushing device for carbon dioxide extruded sheet production

Abstract

The utility model relates to carbon dioxide extruded sheet production technical field especially raw material crushing device for carbon dioxide extruded sheet production, including the crushing jar, wherein, the crushing jar is connected with the shunt hopper in, the shunt hopper is connected with the crushing assembly extending to the shunt hopper outside, the shunt hopper is connected with the baffle ring, the baffle ring is swinged to be connected with the annular sieve plate, the crushing jar and annular sieve plate are connected with the drive assembly that drives annular sieve plate rotation, the sidewall of crushing jar is provided with the discharge gate, the crushing jar is connected with the scraping component in the discharge gate place, the outer wall of crushing jar is connected with the deflector in the discharge gate place, the bottom of crushing jar is connected with the discharge pipe that is linked with the bottom of crushing jar intercommunication, the utility model has realized the crushing of raw material for carbon dioxide extruded sheet production, and the production efficiency of carbon dioxide extruded sheet is improved, and the utility model has the wide application prospect in the carbon dioxide extruded sheet production technical field.

Description

Technical Field

[0001] This utility model relates to the field of carbon dioxide extruded board production technology, and in particular to a raw material crushing device for carbon dioxide extruded board production. Background Technology

[0002] Existing extruded polystyrene (XPS) board equipment uses fluorinated foaming agents and hydrocarbons. As is well known, Freon is a major cause of ozone depletion, and its use is detrimental to environmental protection. Hydrocarbons are flammable, affecting production safety. Therefore, some existing technologies use carbon dioxide as a substitute for Freon as the foaming agent in XPS board production. Carbon dioxide XPS board production requires heating and melting the raw materials before combining them with carbon dioxide. However, in existing technologies, the raw material shells for carbon dioxide XPS boards are large, resulting in low melting efficiency during heating. Therefore, further pulverization of the raw materials is necessary to improve production efficiency. Current pulverizing components only have a pulverizing function and cannot guarantee the uniformity of raw material particle size, affecting the subsequent production efficiency and quality of carbon dioxide XPS boards. Therefore, a pulverizing component that solves the above problems is needed. Utility Model Content

[0003] To address the issue that the raw material shell of carbon dioxide extruded boards has a large volume and low melting efficiency during heating in existing technologies, it is necessary to further crush the raw material in advance to improve production efficiency. However, existing crushing components only have crushing functions and cannot guarantee the uniformity of raw material particle size, which affects the production efficiency and quality of subsequent carbon dioxide extruded boards. Therefore, a raw material crushing device for carbon dioxide extruded board production is invented.

[0004] The present invention relates to a raw material crushing device for the production of carbon dioxide extruded board, comprising a crushing tank, wherein an inverted conical diversion hopper is connected to the inner wall of the crushing tank via several external connecting rods, a crushing component extending outside the diversion hopper to crush the raw material entering the crushing tank is connected inside the diversion hopper, a baffle ring is connected to the diversion hopper, an annular screen plate is movably connected to the baffle ring, a driving component for driving the annular screen plate to rotate is connected to the crushing tank and the annular screen plate, a discharge port is opened on the side wall of the crushing tank, a scraping component for scraping the raw material on the annular screen plate is connected inside the crushing tank at the discharge port, a guide plate is connected to the outer wall of the crushing tank at the discharge port, and a discharge pipe communicating with the bottom of the crushing tank is connected to the bottom of the crushing tank.

[0005] Preferably, the crushing assembly includes an inner connecting rod, a lower connecting plate, an upper connecting plate, a vertical rod, a crushing motor, a rotating shaft, and several crushing blades. The lower connecting plate is connected to the inner wall of the diversion hopper via several inner connecting rods. The upper connecting plate is connected to the lower connecting plate via the vertical rod. The crushing motor is connected to the upper connecting plate. The rotating shaft is connected to the output shaft of the crushing motor. Several crushing blades are connected to the rotating shaft outside the diversion hopper.

[0006] Preferably, the vertical cross-section of the retaining ring is an inverted L-shape, the inner ring of the annular sieve plate is disposed on the retaining ring, and the annular sieve plate is provided with a plurality of sieve holes.

[0007] Preferably, the drive assembly includes a drive gear, an annular drive toothed plate, a connecting block, and a drive motor. The inner wall of the crushing tank is connected to multiple connecting blocks, and a rotating groove is formed on the connecting block. The drive gear is connected to the rotating groove through a drive shaft. The annular drive toothed plate is connected to an annular sieve plate. Several drive gears mesh with the annular drive toothed plate. One drive shaft extends through the crushing tank to the outside. The drive motor is connected to the outer wall of the crushing tank, and the output shaft of the drive motor is connected to the drive shaft extending outside the crushing tank.

[0008] Preferably, the scraping assembly includes a support plate, a connecting shaft, a fixing block, a scraping motor, a plurality of scraping rods and scraping plates. One end of the support plate is connected to the inner wall of the crushing tank at the discharge port. The fixing block is rotatably connected to the support plate via the connecting shaft. The plurality of scraping rods are evenly connected in a ring on the fixing block. Each scraping rod has a scraping plate connected to its end away from the fixing block. One end of the connecting shaft extends through the crushing tank to the outside. The scraping motor is connected to the outer wall of the crushing tank, and the output shaft of the scraping motor is connected to the connecting shaft.

[0009] Preferably, the scraper rod includes a base rod, a telescopic rod, a return spring, and a limiting protrusion. One end of the base rod is connected to a fixed block. The telescopic rod is slidably connected in the telescopic hole of the base rod. The return spring is disposed in the telescopic hole, and its two ends are respectively connected to the inner bottom of the telescopic hole and the end of the telescopic rod. A limiting hole communicating with the telescopic hole is opened on the side wall of the base rod. The limiting protrusion is connected to the outer end face of the end of the telescopic rod located in the base rod, and the limiting protrusion is slidably connected in the limiting hole.

[0010] Preferably, the bottom of the pulverizing tank is connected to several support legs, and a reinforcing rod is connected between adjacent support legs.

[0011] Preferably, the opening of the pulverizing tank is connected to a sealing cover, the sealing cover has a feed inlet, and the sealing cover at the feed inlet is connected to a feed hopper.

[0012] The technical solution of this utility model can achieve the following beneficial effects: (1) The raw materials conveyed to the crushing tank are crushed by the diversion bucket and the crushing component, and the crushed raw materials are guided and diverted by the diversion bucket; (2) The raw materials that slide onto the annular screen plate are screened by the baffle ring and the annular screen plate, and the smaller raw materials are screened to the bottom of the crushing tank, while the larger raw materials remain on the annular screen plate; (3) The annular screen plate is driven to rotate by the drive component; (4) The larger raw materials on the annular screen plate are pushed out of the crushing tank through the discharge port by the scraping component and the guide plate, and then guided and discharged by the guide plate; (5) The raw materials that fall off the annular screen plate are transported out of the crushing tank by the discharge pipe; The technical solution of this utility model has a wide application prospect in the field of carbon dioxide extruded board production technology. Attached Figure Description

[0013] Figure 1 This is a perspective view of a raw material crushing device for the production of carbon dioxide extruded board according to this utility model.

[0014] Figure 2 for Figure 1 Enlarged view of a portion of region A in the middle.

[0015] Figure 3 This is a perspective view of the annular sieve plate of a raw material crushing device for the production of carbon dioxide extruded board according to this utility model.

[0016] Figure 4 for Figure 3 Enlarged view of a portion of region B in the middle.

[0017] Figure 5 This is a cross-sectional view of the scraper rod and scraper plate of a raw material crushing device for carbon dioxide extruded board production according to this utility model.

[0018] The components are as follows: 1. Crushing tank; 2. Sealing cover; 3. Feed hopper; 4. Support leg; 5. Reinforcing rod; 6. Discharge pipe; 7. External connecting rod; 8. Diverting hopper; 9. Internal connecting rod; 10. Lower connecting plate; 11. Vertical rod; 12. Upper connecting plate; 13. Crushing motor; 14. Rotating shaft; 15. Crushing blade; 16. Retaining ring; 17. Annular screen plate; 18. Screen hole; 19. Annular drive toothed plate; 20. Connecting block; 21. Rotating groove; 22. Drive shaft; 23. Drive gear; 24. Drive motor; 25. Support plate; 26. Connecting shaft; 27. Fixing block; 28. Base rod; 29. ​​Telescopic rod; 30. Telescopic hole; 31. Return spring; 32. Limiting hole; 33. Limiting protrusion; 34. Scraper plate; 35. Scraper motor; 36. Discharge port; 37. Guide plate. Detailed Implementation

[0019] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] This application discloses a raw material crushing device for the production of carbon dioxide extruded boards. (See also...) Figure 1A raw material crushing device for the production of carbon dioxide extruded polystyrene (XPS) boards includes a crushing tank 1, which facilitates the transportation of XPS board raw materials into the crushing tank 1 for thorough crushing. A discharge pipe 6, connected to the bottom of the crushing tank 1 and communicating with the inner bottom of the tank 1, is connected to the middle of the arc-shaped bottom, allowing the crushed raw material to be discharged from the crushing tank 1 for subsequent processing. Several support legs 4 are detachably and fixedly connected to the bottom of the crushing tank 1 by bolts, supporting the crushing tank 1 and lifting it off the ground to facilitate the discharge of the crushed raw material from the discharge pipe 6. Reinforcing rods 5 are detachably and fixedly connected between adjacent support legs 4 by bolts, increasing the stability of the support legs 4 and providing stable support for the crushing tank 1. A sealing cap 2 is detachably and fixedly connected to the opening of the crushing tank 1 by bolts, sealing the opening and preventing external debris from falling into the crushing tank 1 and affecting the quality of the raw material. The sealing cover 2 has a feed inlet, and the feed hopper 3 is detachably and fixedly connected to the sealing cover 2 at the feed inlet by bolts, so that carbon dioxide extruded board raw material is added into the crushing tank 1 through the feed hopper 3 and the feed inlet, thereby further crushing the raw material.

[0022] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 The crushing tank 1 is connected to an inverted conical diverting hopper 8. Specifically, the diverting hopper 8 is detachably and fixedly connected to the inner wall of the crushing tank 1 by bolts through several external connecting rods 7, so that the diverting hopper 8 is connected to the crushing tank 1 and is located on the central axis inside the crushing tank 1, thereby dispersing and guiding the raw materials that are transported to the crushing tank 1 and crushed through the diverting hopper 8.

[0023] Reference Figure 1The diversion hopper 8 is connected to a crushing assembly extending outside the diversion hopper 8 to crush the raw materials entering the crushing tank 1. This crushing assembly pulverizes the raw materials entering the crushing tank 1, reducing their volume and improving production efficiency. The crushing assembly includes an inner connecting rod 9, a lower connecting plate 10, an upper connecting plate 12, a vertical rod 11, a crushing motor 13, a rotating shaft 14, and several crushing blades 15. The lower connecting plate 10 is detachably and fixedly connected to the inner wall of the diversion hopper 8 by bolts through several inner connecting rods 9, thus connecting the lower connecting plate 10 to the diversion hopper 8 via the inner connecting rods 9. The upper connecting plate 12 is detachably and fixedly connected to the lower connecting plate 10 by bolts through the vertical rod 11, thus connecting the upper connecting plate 12 and the lower connecting plate 10 together to form a single unit. The crushing motor 13 is detachably and fixedly connected to the upper connecting plate 12 by bolts, thus connecting the crushing motor 13 to the upper connecting plate 12, providing support for the crushing motor 13. The rotating shaft 14 is detachably and fixedly connected to the output shaft of the crushing motor 13 via a coupling, so that when the crushing motor 13 is energized, its output shaft drives the rotating shaft 14 to rotate. Several crushing blades 15 are detachably and fixedly connected to the rotating shaft 14 outside the diversion hopper 8 via bolts, so that the blades 15 are connected to the rotating shaft 14, and the rotation of the rotating shaft 14 drives the blades 15 to rotate, thereby crushing the raw materials conveyed from the feed hopper 3 into the crushing tank 1. The crushing blades 15 are arranged in upper and lower layers to ensure that they can fully crush the raw materials. A sealing plate is connected to the lower end of the diversion hopper 8, which encloses the crushing assembly inside the diversion hopper 8, preventing the crushed raw materials from entering the diversion hopper 8 and affecting the normal operation of the crushing assembly.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A retaining ring 16 is detachably and fixedly connected to the lower end of the diversion hopper 8 by bolts, thus connecting the retaining ring 16 to the diversion hopper 8. An annular screen plate 17 is movably connected to the retaining ring 16. Specifically, the vertical cross-section of the retaining ring 16 is an inverted L-shape, and the inner ring of the annular screen plate 17 is positioned on the retaining ring 16. This allows the retaining ring 16 to support and limit the annular screen plate 17, and to seal the space between the diversion hopper 8 and the annular screen plate 17, thereby allowing the annular screen plate 17 to receive the crushed raw material sliding down from the diversion hopper 8. The annular screen plate 17 has several sieve holes 18, facilitating the sieving of the crushed raw material through these holes. This allows larger raw materials to be retained on the annular screen plate 17, while smaller raw materials fall to the bottom of the crushing tank 1. A vibration generator is detachably and fixedly connected to the inner wall of the crushing tank 1 by bolts. The vibration generator is in contact with the annular screen plate 17, thereby driving the annular screen plate 17 to vibrate and improving the screening efficiency of the annular screen plate 17.

[0025] Reference Figure 1 , Figure 3 , Figure 4 A drive assembly is connected to the crushing tank 1 and the annular screen plate 17 to drive the annular screen plate 17 to rotate relative to the diversion hopper 8 and the crushing tank 1. The drive assembly includes a drive gear 23, an annular drive toothed plate 19, connecting blocks 20, and a drive motor 24. Multiple connecting blocks 20 are detachably fixed to the inner wall of the crushing tank 1 by bolts, so that the connecting blocks 20 are connected to the crushing tank 1 to form a whole. A rotating groove 21 is opened on the connecting block 20, and the drive gear 23 is connected to the rotating groove 21 by a drive shaft 22, so that the drive gear 23 and the drive shaft 22 rotate in the rotating groove 21. The annular drive toothed plate 19 is detachably fixed to the annular screen plate 17 by bolts, so that the annular drive toothed plate 19 and the annular screen plate 17 are connected together and rotate simultaneously. Several drive gears 23 mesh with the annular drive toothed plate 19, so that the rotation of the drive gears 23 drives the annular drive toothed plate 19 to rotate, and thus drives the annular screen plate 17 to rotate. The drive motor 24 is detachably and fixedly connected to the outer wall of the crushing tank 1 by bolts, thus connecting the drive motor 24 to the crushing tank 1. One drive shaft 22 extends through the crushing tank 1 to the outside. The output shaft of the drive motor 24 is detachably and fixedly connected to the drive shaft 22 extending outside the crushing tank 1 by a coupling, so that the drive motor 24 is energized and works. Its output shaft drives the drive shaft 22 to rotate, the drive shaft 22 drives the drive gear 23 to rotate, the drive gear 23 drives the annular drive toothed plate 19 to rotate, and the annular drive toothed plate 19 drives the annular screen plate 17 to rotate.

[0026] Reference Figure 1 , Figure 3 , Figure 4The side wall of the crushing tank 1 has a discharge port 36, which facilitates the discharge of larger volumes of raw materials from the annular screen plate 17. A scraping assembly is connected inside the crushing tank 1 at the discharge port 36 to scrape the raw materials on the annular screen plate 17 towards the discharge port 36, thus facilitating the discharge of the raw materials from the annular screen plate 17 from the discharge port 36. A guide plate 37 is welded to or detachably fixed to the outer wall of the crushing tank 1 at the discharge port 36, guiding the raw materials discharged from the discharge port 36 through the guide plate 37. The scraping assembly includes a support plate 25, a connecting shaft 26, a fixing block 27, a scraping motor 35, several scraping rods, and scraping plates 34. One end of the support plate 25 is welded to or detachably fixed to the inner wall of the crushing tank 1 at the discharge port 36, so that the support plate 25 and the crushing tank 1 are connected together to form a whole. The fixed block 27 is rotatably connected to the support plate 25 via the connecting shaft 26, allowing the fixed block 27 to rotate relative to the support plate 25. Several scraper rods are uniformly welded to the fixed block 27 in a ring, enabling them to rotate simultaneously relative to the support plate 25. Each scraper rod has a scraper plate 34 welded to or detachably fixed to its end away from the fixed block 27 via bolts. The scraper plate 34 is connected to the scraper rod, so that rotation of the fixed block 27 drives the scraper rod to rotate, which in turn drives the scraper plate 34 to rotate, thus scraping the raw material on the annular screen plate 17 towards the discharge port 36. The scraper motor 35 is detachably fixed to the outer wall of the crushing tank 1 via bolts, connecting the scraper motor 35 to the crushing tank 1. One end of the connecting shaft 26 extends through the crushing tank 1 to the outside. The output shaft of the scraper motor 35 is detachably and fixedly connected to the connecting shaft 26 via a coupling, so that when the scraper motor 35 is energized, its output shaft drives the connecting shaft 26 to rotate. The connecting shaft 26 drives the fixed block 27 to rotate, the fixed block 27 drives the scraper rod to rotate, and the scraper rod drives the scraper plate 34 to rotate, thereby scraping the raw material on the annular screen plate 17 towards the discharge port 36 through the scraper plate 34. The scraper rod includes a base rod 28, a telescopic rod 29, a return spring 31, and a limiting protrusion 33. One end of the base rod 28 is welded or threaded and detachably fixedly connected to the fixed block 27, so that the base rod 28 and the fixed block 27 are connected together to form a whole and can rotate simultaneously. The telescopic rod 29 is slidably connected in the telescopic hole 30 of the base rod 28, so that the telescopic rod 29 can move within the telescopic hole 30, thereby adjusting the distance between the end of the telescopic rod 29 outside the base rod 28 and the fixed block 27.A return spring 31 is disposed within the telescopic hole 30, and its two ends are fixedly connected to the inner bottom of the telescopic hole 30 and the end of the telescopic rod 29 respectively by adhesive. This provides elastic force between the telescopic rod 29 and the base rod 28, allowing the telescopic rod 29 to extend as far out of the telescopic hole 30 as possible. A limiting protrusion 33 is welded or threadedly detachably fixed to the outer end face of the end of the telescopic rod 29 located within the base rod 28, connecting the limiting protrusion 33 to the telescopic rod 29 and enabling simultaneous movement relative to the base rod 28. A limiting hole 32 communicating with the telescopic hole 30 is provided on the side wall of the base rod 28. The limiting protrusion 33 is slidably connected within the limiting hole 32, thus limiting the movement of the telescopic rod 29 relative to the base rod 28 through the limiting protrusion 33 and the limiting hole 32, preventing the telescopic rod 29 from detaching from the base rod 28 and limiting the movement distance.

[0027] In operation, firstly, the crushing motor 13, drive motor 24, and scraper motor 35 are energized. The crushing motor 13, when energized, drives several crushing blades 15 to rotate via its output shaft. The drive motor 24, when energized, drives the drive shaft 22 to rotate via its output shaft. The drive shaft 22 drives the drive gear 23 to rotate, which in turn drives the annular drive toothed plate 19 to rotate. The annular drive toothed plate 19 then drives the annular screen plate 17 to rotate. The scraper motor 35, when energized, drives the connecting shaft 26 to rotate via its output shaft. The connecting shaft 26 drives the fixed block 27 to rotate, which in turn drives the base rod 28 to rotate. The base rod 28, via the telescopic rod 29, drives the scraper plate 34 to rotate, causing the scraper plate 34 to scrape the upper surface of the annular screen plate 17. Then, the carbon dioxide extruded board material is fed into the crushing tank 1 through the feed hopper 3. Next, the material enters the crushing tank... Inside the crushing tank 1, the material is crushed by several multi-layered crushing blades 15. The crushed material then falls onto the diversion hopper 8, which guides it onto the annular screen plate 17. The rotation of the annular screen plate 17 and the vibration of the vibration generator separate the material, causing smaller pieces to fall to the bottom while larger pieces remain on the screen plate. The larger pieces are then moved to the discharge port 36 by the rotating screen plate 17. A scraper plate 34 then scrapes the larger pieces from the screen plate 17 to the discharge port 36, exiting the crushing tank 1. The material then falls onto the guide plate 37, which transports it to a specific location, facilitating its return to the feed hopper 3 for further crushing.

[0028] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A raw material crushing device for the production of carbon dioxide extruded board, comprising a crushing tank (1), characterized in that, The crushing tank (1) is connected to an inverted conical diversion hopper (8). The diversion hopper (8) is connected to a crushing component that extends outside the diversion hopper (8) to crush the raw materials entering the crushing tank (1). The diversion hopper (8) is connected to a baffle ring (16). An annular sieve plate (17) is movably connected to the baffle ring (16). The crushing tank (1) and the annular sieve plate (17) are connected to a driving component that drives the annular sieve plate (17) to rotate. The side wall of the crushing tank (1) is provided with a discharge port (36). The crushing tank (1) at the discharge port (36) is connected to a scraping component that scrapes the raw materials on the annular sieve plate (17). The outer wall of the crushing tank (1) at the discharge port (36) is connected to a guide plate (37). The bottom of the crushing tank (1) is connected to a discharge pipe (6) that communicates with the bottom of the crushing tank (1).

2. The raw material crushing device for carbon dioxide extruded board production according to claim 1, characterized in that, The crushing assembly includes an inner connecting rod (9), a lower connecting plate (10), an upper connecting plate (12), a vertical rod (11), a crushing motor (13), a rotating shaft (14), and several crushing blades (15). The lower connecting plate (10) is connected to the inner wall of the diversion hopper (8) through several inner connecting rods (9). The upper connecting plate (12) is connected to the lower connecting plate (10) through the vertical rod (11). The crushing motor (13) is connected to the upper connecting plate (12). The rotating shaft (14) is connected to the output shaft of the crushing motor (13). Several crushing blades (15) are connected to the rotating shaft (14) outside the diversion hopper (8).

3. The raw material crushing device for carbon dioxide extruded board production according to claim 1, characterized in that, The vertical cross section of the retaining ring (16) is an inverted L-shape. The inner ring of the annular sieve plate (17) is set on the retaining ring (16). The annular sieve plate (17) has several sieve holes (18).

4. The raw material crushing device for carbon dioxide extruded board production according to claim 1, characterized in that, The drive assembly includes a drive gear (23), an annular drive tooth plate (19), a connecting block (20), and a drive motor (24). The inner wall of the crushing tank (1) is connected to multiple connecting blocks (20). A rotating groove (21) is provided on the connecting block (20). The drive gear (23) is connected to the rotating groove (21) through a drive shaft (22). The annular drive tooth plate (19) is connected to an annular sieve plate (17). Several drive gears (23) mesh with the annular drive tooth plate (19). One drive shaft (22) extends through the crushing tank (1) to the outside. The drive motor (24) is connected to the outer wall of the crushing tank (1). The output shaft of the drive motor (24) is connected to the drive shaft (22) extending to the outside of the crushing tank (1).

5. The raw material crushing device for carbon dioxide extruded board production according to claim 1, characterized in that, The scraping assembly includes a support plate (25), a connecting shaft (26), a fixing block (27), a scraping motor (35), several scraping rods and scraping plates (34). One end of the support plate (25) is connected to the inner wall of the crushing tank (1) at the discharge port (36). The fixing block (27) is rotatably connected to the support plate (25) through the connecting shaft (26). Several scraping rods are evenly connected to the fixing block (27) in a ring. Each scraping rod has a scraping plate (34) connected to its end away from the fixing block (27). One end of the connecting shaft (26) extends through the crushing tank (1) to the outside. The scraping motor (35) is connected to the outer wall of the crushing tank (1). The output shaft of the scraping motor (35) is connected to the connecting shaft (26).

6. The raw material crushing device for carbon dioxide extruded board production according to claim 5, characterized in that, The scraper includes a base rod (28), a telescopic rod (29), a return spring (31), and a limiting protrusion (33). One end of the base rod (28) is connected to the fixing block (27). The telescopic rod (29) is slidably connected in the telescopic hole (30) of the base rod (28). The return spring (31) is set in the telescopic hole (30), and its two ends are respectively connected to the inner bottom of the telescopic hole (30) and the end of the telescopic rod (29). The side wall of the base rod (28) is provided with a limiting hole (32) that communicates with the telescopic hole (30). The limiting protrusion (33) is connected to the outer end face of the end of the telescopic rod (29) located in the base rod (28). The limiting protrusion (33) is slidably connected in the limiting hole (32).

7. The raw material crushing device for carbon dioxide extruded board production according to claim 1, characterized in that, The bottom of the crushing tank (1) is connected to several support legs (4), and a reinforcing rod (5) is connected between adjacent support legs (4).

8. The raw material crushing device for carbon dioxide extruded board production according to claim 1, characterized in that, The opening of the crushing tank (1) is connected to a sealing cover (2), and the sealing cover (2) has a feed inlet. The sealing cover (2) at the feed inlet is connected to a feed hopper (3).

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