Crushing device for a wear-resistant slag-resistant iron runner castable

Abstract

The utility model relates to the technical field of iron channel castable processing, and disclose a kind of crushing device of wear-resistant slag-resistant iron channel castable, including main crushing box, the top of main crushing box is fixed with pre-crushing box, two pre-crushing motors of opposite rotation are respectively fixed on the pre-crushing box, and the output end of two pre-crushing motors is respectively fixed with pre-crushing roller, the bottom of main crushing box is provided with screening structure, two main crushing motors of opposite rotation are respectively fixed in the front and back of main crushing box, the inside of main crushing box is fixed with support cylinder, the inside of support cylinder is fixed with support frame, and the support frame is provided with crushing structure. The crushing device of wear-resistant slag-resistant iron channel castable, the raw materials can be pre-crushed by pre-crushing box first, so that the raw material pieces are the same size, and the raw materials can be uniformly crushed by crushing structure, to improve the crushing effect of iron channel castable.

Description

Technical Field

[0001] This utility model relates to the field of iron trough castable processing technology, specifically a crushing device for wear-resistant and slag-resistant iron trough castable. Background Technology

[0002] Wear-resistant and slag-resistant iron trough castable is a special refractory material, mainly used in high-temperature environments such as blast furnace tapping troughs to resist the erosion and scouring of molten iron and slag. Wear-resistant and slag-resistant iron trough castable is a commonly used lining material for tapping troughs. Nowadays, high-alumina silicon carbide carbon castable or corundum silicon carbide carbon castable are mostly used.

[0003] Before casting raw materials, they need to be crushed. Therefore, crushing devices are used. Most existing crushing devices use a unidirectional rotating breaker to crush the raw materials. However, during the crushing process, the unidirectional rotating breaker may cause the raw materials to move along with it, thereby reducing the crushing effect of the breaker on the raw materials. In addition, during the crushing process, smaller pieces are directly screened out, while larger pieces need to be put back into the device for crushing after being discharged. This makes it inconvenient to crush the raw materials in one go, thus reducing work efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a crushing device for wear-resistant and slag-resistant iron trough castable, which solves the problem of inconvenience in uniformly crushing the casting raw materials during the processing of iron trough castable.

[0006] (II) Technical Solution

[0007] To facilitate uniform crushing of the raw materials during the processing of the aforementioned iron trough castable, this utility model provides the following technical solution: a crushing device for wear-resistant and slag-resistant iron trough castable, comprising a main crushing box, a pre-crushing box fixed above the main crushing box, two pre-crushing motors rotating in opposite directions fixed on the pre-crushing box, and pre-crushing rollers fixed at the output ends of the two pre-crushing motors respectively, the other ends of the pre-crushing rollers being rotatably connected to the pre-crushing box via bearings, a screening structure provided at the bottom of the main crushing box, two main crushing motors rotating in opposite directions fixed at the front and rear of the main crushing box, a support cylinder fixed inside the main crushing box, a support frame fixed inside the support cylinder, and a crushing structure provided on the support frame;

[0008] The screening structure includes a screening motor fixed on a base below. A crank is fixed to the output end of the screening motor. A linkage rod rotates on the crank via a pivot pin. A lifting rod rotates at the other end of the linkage rod via a pivot pin. A baffle is fixed to the other end of the lifting rod. A discharge inclined plate is fixed to the lower part of the main crushing box. A lower screen plate is fixed between the front and rear baffles. A side rotating plate rotates on the side of the main crushing box via a pivot pin. A side screen plate slides on the side rotating plate. A spring telescopic rod is fixed between the side rotating plate and the side screen plate. A shovel plate is hinged to the bottom end of the side screen plate. A sliding groove is opened on the side of the lower screen plate.

[0009] Preferably, the curved disk consists of two disks with different diameters and different centers. The curved disk is concentric with the output end of the screening motor, and the linkage rod is rotatably connected to the non-center of the curved disk via a pivot pin.

[0010] Preferably, the main crushing box has vertical rectangular openings at both the front and rear, the lifting rod is slidably connected to the rectangular openings, the baffle is located at the rectangular openings, and the size of the baffle is larger than the size of the rectangular openings.

[0011] Preferably, the outer side of the side screen plate is slidably connected to the slide groove via a sliding pin, and the inner side of the side screen plate is slidably connected to the lower screen plate via a shovel plate.

[0012] Preferably, the crushing structure includes a front drive gear ring and a rear drive gear ring. The front drive gear ring is fixed on the output shaft of the front main crushing motor, and the rear drive gear ring is fixed on the output shaft of the rear main crushing motor. A front rotating shaft and a rear rotating shaft are respectively rotatable on the front and rear support frames. A front linkage gear ring is fixed on the front rotating shaft, and a rear linkage gear ring is fixed on the rear rotating shaft. A first rotating groove and a second rotating groove are respectively opened on the support cylinder, and the first rotating groove and the second rotating groove are staggered along the axis of the support cylinder. A front driven gear ring rotates inside the first rotating groove through a bearing, and a rear driven gear ring rotates inside the second rotating groove through a bearing. A front breaker hammer is fixed to the surface of the front driven gear ring by bolts, and a rear breaker hammer is fixed to the surface of the rear driven gear ring by bolts.

[0013] Preferably, there are three front rotating shafts and three rear rotating shafts, and the three front rotating shafts and three rear rotating shafts are staggered along the circumferential direction of the support cylinder, and the front driven gear ring and the rear driven gear ring are staggered along the axial direction of the support cylinder.

[0014] Preferably, the front drive gear ring meshes with the front linkage gear ring, the front linkage gear ring meshes with the front driven gear ring, the rear drive gear ring meshes with the rear linkage gear ring, and the rear linkage gear ring meshes with the rear driven gear ring.

[0015] Preferably, the front driven gear ring and the rear driven gear ring are staggered along the axis of the support cylinder, and the front breaker and the rear breaker are tilted in opposite directions.

[0016] Compared with the prior art, this utility model provides a crushing device for wear-resistant and slag- and iron-resistant trough castable, which has the following beneficial effects:

[0017] 1. The crushing device for this wear-resistant and slag-resistant castable slag trench can drive the front driven gear ring to rotate to one side through the front linkage gear ring. The front driven gear ring drives the front breaker to rotate. The rear driven gear ring can drive the rear driven gear ring to rotate to the other side through the rear linkage gear ring. The rear driven gear ring drives the rear breaker to rotate. Therefore, the front breaker and the rear breaker can rotate synchronously in opposite directions, so that the front breaker and the rear breaker can disrupt the raw material and crush it evenly.

[0018] 2. The crushing device for this wear-resistant and slag-resistant castable slag trench has the raw material crushed by the front and rear breaker hammers falling onto the lower screen plate and the side screen plates on both sides. Smaller raw materials fall through the through holes in the lower and side screen plates and are discharged directly onto the discharge inclined plate, while larger raw materials fall onto the lower screen plate and the side screen plates on both sides. The reciprocating motion of the lower and side screen plates on both sides can push the raw materials falling onto the lower and side screen plates onto the front and rear breaker hammers. Therefore, the raw materials can continue to be crushed by the front and rear breaker hammers. This cycle continues until the larger raw material fragments are crushed into smaller raw material fragments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the sieving structure of this utility model;

[0022] Figure 4 This is a combined diagram of the rear drive gear ring and the rear linkage gear ring of this utility model.

[0023] Figure 5 This is a schematic diagram of the front driven gear ring and the rear driven gear ring of the present invention;

[0024] Figure 6 This is a partial sectional view of the structural support cylinder of this utility model.

[0025] The components are as follows: 1. Main crushing box; 2. Pre-crushing box; 3. Pre-crushing motor; 4. Pre-crushing roller; 5. Screening structure; 51. Screening motor; 52. Crank plate; 53. Linkage rod; 54. Lifting rod; 55. Baffle; 56. Discharge inclined plate; 57. Lower screen plate; 58. Side rotating plate; 59. Side screen plate; 510. Spring telescopic rod; 511. Shovel plate; 512. Slide chute; 6. Main crushing motor; 7. Support cylinder; 8. Support frame; 9. Crushing structure; 91. Front drive gear ring; 911. Front rotating shaft; 912. Front linkage gear ring; 913. No. 1 rotating chute; 914. Front driven gear ring; 915. Front breaker hammer; 92. Rear drive gear ring; 921. Rear rotating shaft; 922. Rear linkage gear ring; 923. No. 2 rotating chute; 924. Rear driven gear ring; 925. Rear breaker hammer. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] Please see Figure 1-6 This utility model provides a crushing device for wear-resistant and slag-resistant castable slag, including a main crushing box 1, a pre-crushing box 2 fixed above the main crushing box 1, two pre-crushing motors 3 with opposite directions fixed on the pre-crushing box 2, and pre-crushing rollers 4 fixed at the output ends of the two pre-crushing motors 3 respectively. The other end of the pre-crushing rollers 4 is rotatably connected to the pre-crushing box 2 through bearings. A screening structure 5 is provided at the bottom of the main crushing box 1. Two main crushing motors 6 with opposite directions are fixed at the front and rear of the main crushing box 1 respectively. A support cylinder 7 is fixed inside the main crushing box 1. A support frame 8 is fixed inside the support cylinder 7. A crushing structure 9 is provided on the support frame 8.

[0028] The screening structure 5 includes a screening motor 51, which is fixed on the base below. A crank 52 is fixed to the output end of the screening motor 51. A linkage rod 53 rotates on the crank 52 via a pivot pin. A lifting rod 54 rotates on the other end of the linkage rod 53 via a pivot pin. A baffle 55 is fixed to the other end of the lifting rod 54. A discharge inclined plate 56 is fixed to the lower part of the main crushing box 1. A lower screen plate 57 is fixed between the front and rear baffles 55. A side rotating plate 58 rotates on the side of the main crushing box 1 via a pivot pin. A side screen plate 59 slides on the side rotating plate 58. A spring telescopic rod 510 is fixed between the side rotating plate 58 and the side screen plate 59. A shovel plate 511 is hinged to the bottom end, and a sliding groove 512 is provided on the side of the lower screen plate 57. The screening motor 51 can drive the baffle 55 to move up and down through the crank plate 52, the linkage rod 53 and the lifting rod 54. The baffle 55 can drive the lower screen plate 57 to move up and down, and cause the spring telescopic rod 510 to extend or retract. The lower screen plate 57 can drive the side screen plates 59 on both sides to slide on the side rotating plate 58 while also rotating. Thus, through the lower screen plate 57 and the side screen plates 59 on both sides, larger fragments on their surface can be pushed upwards, so that the front breaker hammer 915 and the rear breaker hammer 925 can continuously crush the raw material.

[0029] Furthermore, the curved disk 52 is composed of two disks with different diameters and different centers. The curved disk 52 is concentric with the output end of the screening motor 51. The linkage rod 53 is rotatably connected to the non-center of the curved disk 52 through a pivot pin, so that the screening motor 51 can drive the curved disk 52 to rotate. The curved disk 52 can drive the lifting rod 54 to move up and down through the linkage rod 53.

[0030] Furthermore, the front and rear of the main crushing box 1 are provided with vertical rectangular openings. The lifting rod 54 is slidably connected to the rectangular openings. The baffle 55 is located at the rectangular opening. The size of the baffle 55 is larger than the size of the rectangular opening, so that the lifting rod 54 can be guided up and down through the rectangular opening, so that the lifting rod 54 can only move up and down. This makes it easy for the lifting rod 54 to drive the baffle 55 to move up and down. When the baffle 55 moves up and down at the rectangular opening, the baffle 55 can always block the rectangular opening and prevent the raw material from spreading upward through the rectangular opening.

[0031] Furthermore, the outer side of the side screen plate 59 is slidably connected to the slide groove 512 via a sliding pin, and the inner side of the side screen plate 59 is slidably connected to the lower screen plate 57 via a shovel plate 511, as shown below. Figure 2 and Figure 3As shown, the bottom of the side screen plate 59 is U-shaped, and sliding pins are rotatably mounted on the support rods extending from both ends of the U-shaped groove. These sliding pins are inserted into the sliding groove 512, allowing the bottom of the side screen plate 59 to move back and forth horizontally along the lower screen plate 57 via the sliding pins and the sliding groove 512. The shovel plate 511 is hinged within the U-shaped groove, and its bottom surface is flat. When the side screen plate 59 moves horizontally along the lower screen plate 57, or when the side screen plate 59 rotates around the sliding pins, the bottom surface of the shovel plate 511 always contacts the upper surface of the lower screen plate 57. When moving downwards, the sliding pin and the sliding groove 512 can drive the side screen plates 59 on both sides to rotate. The side screen plates 59 can drive the spring telescopic rod 510 to extend and retract. The spring telescopic rod 510 consists of two sliding rods of different diameters and a spring. The two ends of the spring are fixedly connected to the two sliding rods, so that the side screen plates 59 can move up and down through the extension and retraction of the spring telescopic rod 510. The bottom of the shovel plate 511 contacts the lower screen plate 57, so that the shovel plate 511 can remove the raw material on the lower screen plate 57 and prevent the raw material from sticking to the lower screen plate 57.

[0032] Furthermore, the crushing structure 9 includes a front drive gear ring 91 and a rear drive gear ring 92. The front drive gear ring 91 is fixed on the output shaft of the front main crushing motor 6, and the rear drive gear ring 92 is fixed on the output shaft of the rear main crushing motor 6. A front rotating shaft 911 and a rear rotating shaft 921 rotate on the front and rear support frames 8, respectively. A front linkage gear ring 912 is fixed on the front rotating shaft 911, and a rear linkage gear ring 922 is fixed on the rear rotating shaft 921. A first rotating groove 913 and a second rotating groove 923 are respectively opened on the support cylinder 7, and the first rotating groove 913 and the second rotating groove 923 are staggered along the axis of the support cylinder 7. The interior of the first rotating groove 913 rotates via a bearing. A front driven gear ring 914 and a rear driven gear ring 924 rotate via bearings inside the second rotating slot 923. A front breaker hammer 915 is bolted to the surface of the front driven gear ring 914, and a rear breaker hammer 925 is bolted to the surface of the rear driven gear ring 924. Two motors rotating in opposite directions can drive the front drive gear ring 91 and the rear drive gear ring 92 to rotate in opposite directions, allowing the front drive gear ring 91 to drive the front breaker hammer 915 to one side via the front linkage gear ring 912 and the front driven gear ring 914, and the rear drive gear ring 92 to drive the rear breaker hammer 925 to the other side via the rear linkage gear ring 922 and the rear driven gear ring 924. Figure 4 and Figure 5As shown, a hydraulic breaker is a tool that uses impact force to break objects. It is usually made of hard steel. By rotating at high speed or impacting, the hydraulic breaker transfers energy to the target object, causing it to break or split. In this device, the front hydraulic breaker 915 and the rear hydraulic breaker 925 rotate in opposite directions, with the front hydraulic breaker 915 moving towards the breaking side and the rear hydraulic breaker 925 moving towards the breaking side. Both have large-area inclined surfaces shaped like cutting blades. When the material comes into contact with the blades, it can be cut and broken. When the material comes into contact with the inclined surfaces, it will break upon impact. The inclined surfaces can also disperse the material to both sides. The front hydraulic breaker 915 and the rear hydraulic breaker 925 can continuously break the material. Therefore, the front hydraulic breaker 915 and the rear hydraulic breaker 925 can rotate synchronously in opposite directions. The reverse movement of the front hydraulic breaker 915 and the rear hydraulic breaker 925 can generate shearing force to improve the breaking effect and uniformly break the material.

[0033] Furthermore, three front rotating shafts 911 and three rear rotating shafts 921 are provided, and the three front rotating shafts 911 and the three rear rotating shafts 921 are staggered along the circumferential direction of the support cylinder 7. The front driven gear ring 914 and the rear driven gear ring 924 are staggered along the axial direction of the support cylinder 7. When the front driving gear ring 91 drives the front linkage gear ring 912 to rotate, the front rotating shaft 911 can simultaneously drive the other front linkage gear rings 912 to rotate. When the rear driving gear ring 92 drives the rear linkage gear ring 922 to rotate, the rear rotating shaft 921 can simultaneously drive the other rear linkage gear rings 922 to rotate.

[0034] Furthermore, the front drive gear ring 91 meshes with the front linkage gear ring 912, the front linkage gear ring 912 meshes with the front driven gear ring 914, the rear drive gear ring 92 meshes with the rear linkage gear ring 922, and the rear linkage gear ring 922 meshes with the rear driven gear ring 924. This facilitates the front drive gear ring 91 to drive the front breaker 915 to rotate through the front linkage gear ring 912 and the front driven gear ring 914, and facilitates the rear drive gear ring 92 to drive the rear breaker 925 to rotate through the rear linkage gear ring 922 and the rear driven gear ring 924.

[0035] Furthermore, the front driven gear ring 914 and the rear driven gear ring 924 are staggered along the axis of the support cylinder 7, and the front breaker hammer 915 and the rear breaker hammer 925 are inclined in opposite directions, such as... Figure 6 As shown, the support frame 8 is fixedly connected to the support cylinders 7 on both sides of the first rotating groove 913 and the second rotating groove 923 via the sub-brackets. The bearings on both sides of the first rotating groove 913 can support the rotation of the front driven gear ring 914, and the bearings on both sides of the second rotating groove 923 can support the rotation of the rear driven gear ring 924. This facilitates the front driven gear ring 914 to drive the front breaker hammer 915 to rotate to one side, and the rear driven gear ring 924 to drive the rear breaker hammer 925 to rotate to the other side.

[0036] The working principle of this utility model is as follows: In use, two pre-crushing motors 3 drive two pre-crushing rollers 4 to rotate synchronously in opposite directions. The pre-crushing rollers 4 are equipped with protruding extrusion blocks, which are staggered on the two rollers. The casting material is then poured into the pre-crushing box 2, whereby the two pre-crushing rollers 4 crush the material into uniformly sized fragments. These fragments fall downwards above the support cylinder 7. Simultaneously, the front main crushing motor 6 drives the front drive gear ring 91 to rotate to one side, and the rear main crushing motor 6 drives the rear drive gear ring 92 to rotate to the other side. This causes the front drive gear ring 91 and the rear drive gear ring 92 to rotate in opposite directions. Therefore, the front drive gear ring 91, through the front linkage gear ring 912, drives the front driven gear ring 914 to rotate to one side, and the front driven gear ring 914... The front breaker 915 rotates, and the rear drive gear ring 92, through the rear linkage gear ring 922, drives the rear driven gear ring 924 to rotate to the other side. The rear driven gear ring 924 then drives the rear breaker 925 to rotate, thus enabling the front and rear breaker hammers 915 and 925 to rotate synchronously in opposite directions. This allows the front and rear breaker hammers 915 and 925 to disrupt the raw material. When the front and rear breaker hammers 915 and 925 contact the raw material, they can uniformly crush it. The crushed material falls onto the lower screen plate 57 and the side screen plates 59. Smaller pieces of material pass through the through holes in the lower and side screen plates 57 and fall onto the discharge inclined plate 56 for direct discharge, while larger pieces of material fall onto the lower screen plate 57 and the side screen plates 59. Figure 1As shown, the screening motor 51 drives the crank disk 52 to rotate counterclockwise. When the smaller diameter end of the crank disk 52 moves from the bottom to the top, the linkage rod 53 drives the lifting rod 54 and the baffle 55 to move vertically upwards. When the smaller diameter end of the crank disk 52 moves from the top to the bottom, the linkage rod 53 drives the lifting rod 54 and the baffle 55 to move vertically downwards. This allows the lifting rod 54 and the baffle 55 to reciprocate up and down, thus the baffle 55 drives the lower screen plate 57 to reciprocate up and down. As the lower screen plate 57 moves upwards, it drives the side screen plates 59 on both sides to rotate obliquely upwards. At this time, the spring telescopic rod 510 retracts, and the lower screen plate 57 moves downwards... During the process, the extension of the spring telescopic rod 510 can drive the side screen plates 59 on both sides to rotate obliquely downward. Therefore, when the lower screen plate 57 moves upward and the side screen plates 59 rotate obliquely upward, the raw materials falling on the lower screen plate 57 and the side screen plates 59 can be pushed forward by the front crusher 915 and the rear crusher 925. Thus, the raw materials can continue to be crushed by the front crusher 915 and the rear crusher 925. This cycle continues until the larger raw material fragments are crushed into smaller raw material fragments. The raw material fragments are discharged through the through holes on the lower screen plate 57 and the side screen plates 59 and then discharged by the discharge inclined plate 56. There is no need to remove the larger raw materials, so that the raw materials can be continuously crushed, thereby improving the efficiency of raw material crushing.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crushing device for wear-resistant and slag-resistant castable slag trenches, comprising a main crushing box (1), characterized in that: A pre-crushing box (2) is fixed above the main crushing box (1). Two pre-crushing motors (3) with opposite directions are fixed on the pre-crushing box (2). Pre-crushing rollers (4) are fixed at the output ends of the two pre-crushing motors (3). The other end of the pre-crushing rollers (4) is rotatably connected to the pre-crushing box (2) through a bearing. A screening structure (5) is provided at the bottom of the main crushing box (1). Two main crushing motors (6) with opposite directions are fixed at the front and rear of the main crushing box (1). A support cylinder (7) is fixed inside the main crushing box (1). A support frame (8) is fixed inside the support cylinder (7). A crushing structure (9) is provided on the support frame (8). The screening structure (5) includes a screening motor (51), which is fixed on the base below. A crank plate (52) is fixed to the output end of the screening motor (51). A linkage rod (53) rotates on the crank plate (52) via a pivot pin. A lifting rod (54) rotates on the other end of the linkage rod (53) via a pivot pin. A baffle (55) is fixed to the other end of the lifting rod (54). A discharge inclined plate is fixed to the lower part of the main crushing box (1). A lower screen plate (57) is fixed between the front and rear baffles (55), and a side rotating plate (58) is rotated on the side of the main crushing box (1) by a pivot pin. A side screen plate (59) slides on the side rotating plate (58), and a spring telescopic rod (510) is fixed between the side rotating plate (58) and the side screen plate (59). A shovel plate (511) is hinged to the bottom end of the side screen plate (59), and a sliding groove (512) is opened on the side of the lower screen plate (57).

2. The crushing device for wear-resistant and slag-resistant castable refractory according to claim 1, characterized in that: The curved disk (52) consists of two disks with different diameters and different centers. The output end of the curved disk (52) is concentric with the output end of the screening motor (51). The linkage rod (53) is rotatably connected to the non-center of the curved disk (52) through a pivot pin.

3. The crushing device for wear-resistant and slag-resistant castable refractory according to claim 1, characterized in that: The main crushing box (1) has vertical rectangular openings at both the front and rear. The lifting rod (54) is slidably connected to the rectangular opening. The baffle (55) is located at the rectangular opening, and the size of the baffle (55) is larger than the size of the rectangular opening.

4. The crushing device for wear-resistant and slag-resistant castable refractory according to claim 1, characterized in that: The outer side of the side sieve plate (59) is slidably connected to the slide groove (512) by a sliding pin, and the inner side of the side sieve plate (59) is slidably connected to the lower sieve plate (57) by a shovel plate (511).

5. The crushing device for wear-resistant and slag-resistant castable refractory according to claim 1, characterized in that: The crushing structure (9) includes a front drive gear ring (91) and a rear drive gear ring (92). The front drive gear ring (91) is fixed on the output shaft of the front main crushing motor (6), and the rear drive gear ring (92) is fixed on the output shaft of the rear main crushing motor (6). A front rotating shaft (911) and a rear rotating shaft (921) are respectively rotatable on the front and rear support frames (8). A front linkage gear ring (912) is fixed on the front rotating shaft (911), and a rear linkage gear ring (922) is fixed on the rear rotating shaft (921). The support cylinder (7) is respectively A first rotating groove (913) and a second rotating groove (923) are provided, and the first rotating groove (913) and the second rotating groove (923) are staggered along the axis of the support cylinder (7). The first rotating groove (913) has a front driven gear ring (914) rotating inside through a bearing, and the second rotating groove (923) has a rear driven gear ring (924) rotating inside through a bearing. The surface of the front driven gear ring (914) is fixed with a front breaker hammer (915) by bolts, and the surface of the rear driven gear ring (924) is fixed with a rear breaker hammer (925) by bolts.

6. The crushing device for wear-resistant and slag-resistant castable refractory according to claim 5, characterized in that: There are three front rotating shafts (911) and three rear rotating shafts (921), and the three front rotating shafts (911) and the three rear rotating shafts (921) are staggered along the circumferential direction of the support cylinder (7). The front driven gear ring (914) and the rear driven gear ring (924) are staggered along the axial direction of the support cylinder (7).

7. The crushing device for wear-resistant and slag-resistant castable refractory according to claim 5, characterized in that: The front drive gear ring (91) meshes with the front linkage gear ring (912), the front linkage gear ring (912) meshes with the front driven gear ring (914), the rear drive gear ring (92) meshes with the rear linkage gear ring (922), and the rear linkage gear ring (922) meshes with the rear driven gear ring (924).

8. The crushing device for wear-resistant and slag-resistant castable refractory according to claim 5, characterized in that: The front driven gear ring (914) and the rear driven gear ring (924) are staggered along the axis of the support cylinder (7), and the front breaker hammer (915) and the rear breaker hammer (925) are inclined in opposite directions.

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