Slag slurry crusher

Abstract

The slag slurry crusher comprises a base, a driving assembly and a crushing assembly are arranged on the base, a feeding cavity and a crushing cavity are formed in the base, the feeding cavity is communicated with the crushing cavity, the crushing assembly comprises a crushing movable cutter and a crushing fixed cutter, the crushing fixed cutter is located on the crushing cavity, and the driving assembly is connected with the driving assembly. The fixed crushing cutter is fixedly connected with the base, the movable crushing cutter is fixedly connected with the driving assembly, the movable crushing cutter is located at the feeding cavity, a crushing gap is formed between the movable crushing cutter and the fixed crushing cutter, a discharging opening is formed in the base, the crushing cavity communicates with the discharging opening, and the fixed crushing cutter is fixedly connected with the driving assembly. The ore crushing device has the beneficial effects that secondary crushing can be conveniently conducted on large-particle ore existing in the ore subjected to primary crushing, and therefore the size of the crushed ore can meet the follow-up machining procedure.

Description

Technical Field

[0001] This application relates to the field of mining equipment, and in particular to a slurry crusher. Background Technology

[0002] A slurry crusher is a device specifically designed to process slurry-like materials containing solid particles. Through shearing, impact, and grinding, it efficiently breaks down and disperses large solid particles, clumps, or fibrous materials in the slurry into finer particles, thereby improving the material's uniformity and flowability. This crushing process ensures the slurry achieves a suitable particle size distribution for smooth entry into subsequent processing steps, such as conveying, filtering, mixing, or chemical reactions, avoiding blockages and efficiency losses. Slurry crushers are used in the chemical industry for slurry preparation and wastewater treatment, in the mining industry for ore crushing and tailings recovery, and also play an important role in wastewater treatment, metallurgy, and other fields, significantly improving the continuity of production lines and overall economic efficiency.

[0003] A slurry crusher is available, comprising a frame and crushing components, a transmission system, an adjustment device, and a lubrication and protection system mounted on the frame. It achieves the purpose of crushing slurry through methods such as extrusion, impact, shearing, and grinding. For example, a jaw crusher crushes the material by periodically bringing the moving jaw close to the fixed jaw. A cone crusher crushes the material by generating extrusion force through the oscillation of the moving cone around the fixed cone. An impact / hammer crusher crushes the material by using a high-speed rotating hammer to strike the material and make it impact the impact plate. Through multiple impacts, the material is crushed and finally discharged after reaching the required particle size.

[0004] The slurry produced during the mineral processing also needs to be crushed by the aforementioned slurry crusher to pulverize the large ore particles generated during the mineral processing. However, in practical applications, the inventors have found that due to the influence of the slurry crusher's feeding rate and feed volume, when too much ore enters the slurry crusher instantaneously, a small amount of ore particles that cannot meet the requirements of subsequent processing steps will be mixed into the ore particles after being crushed and discharged from the slurry crusher (i.e., there are large, unqualified ore particles in the ore after slurry crushing). In order to facilitate the smooth operation of subsequent processing steps, another slurry crusher needs to be connected in series at the discharge port of the slurry crusher to achieve dual crushing of the ore. This results in high secondary crushing costs and occupies a lot of production space, indicating room for improvement. Summary of the Invention

[0005] The purpose of this invention is to facilitate the secondary crushing of large ore particles present in the ore after primary crushing, so that the size of the crushed ore can meet the requirements of subsequent processing steps. This application provides a slurry crusher.

[0006] To achieve the above objectives, the slurry crusher provided in this application adopts the following technical solution:

[0007] A slurry crusher includes a base, on which a drive assembly and a crushing assembly are disposed. The base has a feed chamber and a crushing chamber, the feed chamber being connected to the crushing chamber. The crushing assembly includes a moving crushing blade and a fixed crushing blade. The fixed crushing blade is located on the crushing chamber and is fixedly connected to the base. The moving crushing blade is fixedly connected to the drive assembly and is located in the feed chamber. A crushing gap is formed between the moving crushing blade and the fixed crushing blade. The base has a discharge port, and the crushing chamber is connected to the discharge port.

[0008] Preferably, the crushing assembly further includes an auxiliary crushing guide knife and a drive shaft. The drive shaft is fixedly connected to the drive assembly. The auxiliary crushing guide knife and the moving crushing knife are coaxially fixed with the drive shaft. The auxiliary crushing guide knife is located inside the crushing chamber, and the fixed crushing knife is located between the auxiliary crushing guide knife and the moving crushing knife.

[0009] Preferably, the auxiliary crushing guide knife has several circumferentially oriented guide channels on its surface facing the fixed crushing knife, and the guide channels are connected to the discharge port.

[0010] Preferably, the drive assembly includes a variable speed hydraulic motor, a first coupling, and a second coupling. The variable speed hydraulic motor is mounted on the base. The first coupling is coaxially fixed to the output shaft of the variable speed hydraulic motor. The second coupling is coaxially fixed to the drive shaft. The first coupling and the second coupling are locked together.

[0011] Preferably, a locking adjustment assembly is provided on the drive shaft. The locking adjustment assembly includes a locking sleeve and an adjusting sleeve. The locking sleeve is located on the side of the moving crusher away from the fixed crusher and is coaxially fixed with the drive shaft. The adjusting sleeve is located between the moving crusher and the auxiliary crusher guide blade and is coaxially fixed with the drive shaft.

[0012] Preferably, a water baffle is provided on the side of the locking sleeve opposite to the crushing blade, and the water baffle is coaxially fixed with the drive shaft.

[0013] Preferably, the inner wall of the crushing chamber is provided with a flow guide groove in an annular shape, and the flow guide groove is connected to the discharge port, and the depth of the flow guide groove gradually increases from the end away from the discharge port to the end connected to the discharge port.

[0014] Preferably, the base has a plurality of guide ribs arranged circumferentially at one end near the feed chamber, and the spacing between two adjacent guide ribs is the same.

[0015] Preferably, the drive shaft is provided with a waterproof component, which includes a clamping spring and two sets of skeleton oil seals. The two sets of skeleton oil seals are coaxially arranged with the drive shaft and abut against the inner wall of the base. The clamping spring is sleeved on the drive shaft, and both ends of the clamping spring abut against the two sets of skeleton oil seals respectively.

[0016] Compared with the prior art, the present invention provides a slurry crusher with the following advantages:

[0017] 1. Because the moving crusher is connected to the drive assembly, the drive assembly drives the moving crusher to rotate along the base. A crushing gap is formed between the moving crusher and the fixed crusher. As the ore enters the crushing chamber along the feed chamber, when the ore reaches the crushing gap, the moving crusher and the fixed crusher work together to squeeze, crush, and roll the ore, achieving the purpose of secondary crushing of the ore. The crushed ore will be discharged through the discharge port of the base. At the same time, if the size of the ore entering the base along the feed chamber is smaller than the crushing gap, it will directly enter the crushing chamber and be discharged through the discharge port without secondary crushing. This reduces the resistance of the moving crusher and the fixed crusher when crushing the ore. It also plays a positive guiding role in the secondary crushing of large ore particles in the ore after the primary crushing, so that the size of the crushed ore can meet the requirements of subsequent processing steps.

[0018] 2. The auxiliary crushing guide knife moves synchronously with the crushing moving knife, so that the auxiliary crushing guide knife and the crushing moving knife rotate synchronously between the crushing fixed knife, achieving the purpose of double crushing of the ore. After crushing, the ore is guided by several guide channels, so that the ore is discharged in an orderly manner along the discharge port, improving the orderliness of the ore discharged along the base after crushing.

[0019] 3. Several guide ribs guide and divert the ore entering the crushing chamber along the feed chamber, effectively reducing the probability of damage to the crushing blades or auxiliary crushing guide blades due to excessive instantaneous ore entering the crushing chamber along the feed chamber and causing excessive force on the crushing blades or auxiliary crushing guide blades. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a slurry crusher according to an embodiment of this application.

[0021] Figure 2 This is an exploded structural diagram of a slurry crusher according to an embodiment of this application, along the indicated axial direction.

[0022] Figure 3 yes Figure 1 A cross-sectional structural diagram of a slurry crusher.

[0023] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle.

[0024] Figure 5 This is a schematic diagram showing the cooperation relationship between the limiting component, the crushing component, and the locking adjustment component in a slurry crusher according to an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Base; 11. Feed chamber; 12. Crushing chamber; 121. Guide channel; 13. Discharge port; 14. Guide rib; 15. Mounting sleeve; 151. Connecting flange; 152. First limiting platform; 1521. Mounting position; 153. Second limiting platform; 1531. Locking position; 154. Fixed flange; 2. Drive assembly; 21. Variable speed hydraulic motor; 22. First coupling; 23. Second coupling; 3. Crushing assembly; 31. Crushing moving blade; 32. 1. Crushing fixed blade; 33. Drive shaft; 331. Water baffle; 3311. Arc-shaped water guiding area; 34. Auxiliary crushing guide blade; 341. Guide channel; 4. Crushing gap; 5. Locking adjustment assembly; 51. Locking sleeve; 511. First limiting part; 512. Second limiting part; 52. Adjusting sleeve; 6. Waterproof assembly; 61. Pressing spring; 62. Skeleton oil seal; 7. Buffer pad; 8. Limiting assembly; 81. First limiting bearing; 82. Second limiting bearing; 9. Connecting seat. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] This application discloses a slurry crusher. (Refer to...) Figure 1 , Figure 2 as well as Figure 3 A slurry crusher includes a base 1, a drive assembly 2 and a crushing assembly 3 on the base 1, a feed chamber 11 and a crushing chamber 12 on the base 1, the feed chamber 11 being connected to the crushing chamber 12, the crushing assembly 3 including a moving crushing blade 31 and a fixed crushing blade 32, the fixed crushing blade 32 being located on the crushing chamber 12 and fixedly connected to the base 1, the moving crushing blade 31 being fixedly connected to the drive assembly 2 and located at the feed chamber 11, a crushing gap 4 being formed between the moving crushing blade 31 and the fixed crushing blade 32, and a discharge port 13 on the base 1, the crushing chamber 12 being connected to the discharge port 13.

[0028] Specifically, the crushing assembly 3 also includes an auxiliary crushing guide knife 34 and a drive shaft 33. The drive shaft 33 is fixedly connected to the drive assembly 2. The auxiliary crushing guide knife 34 and the moving crushing knife 31 are coaxially fixed with the drive shaft 33. The auxiliary crushing guide knife 34 is located inside the crushing chamber 12, and the fixed crushing knife 32 is located between the auxiliary crushing guide knife 34 and the moving crushing knife 31.

[0029] Correspondingly, the drive assembly 2 includes a variable speed hydraulic motor 21, a first coupling 22 and a second coupling 23. The variable speed hydraulic motor 21 is mounted on the base 1. The first coupling 22 is coaxially fixed with the output shaft of the variable speed hydraulic motor 21. The second coupling 23 is coaxially fixed with the drive shaft 33. The first coupling 22 and the second coupling 23 are locked together.

[0030] The base 1 is equipped with an installation sleeve 15. The end of the installation sleeve 15 facing the base 1 is integrally formed with a connecting flange 151. The installation sleeve 15 and the base 1 are fixedly connected by bolts through the connecting flange 151 to improve the stability of the fit between the installation sleeve 15 and the base 1.

[0031] Meanwhile, the moving crusher 31 is configured as a three-bladed blade, used to deliver the slurry located in the feed chamber 11 to the space between the moving crusher 31 and the fixed crusher 32. Its specific shape is not limited here.

[0032] Furthermore, the variable speed hydraulic motor 21 is installed at the end of the mounting sleeve 15 away from the connecting flange 151. The output shaft of the variable speed hydraulic motor 21 is located inside the mounting sleeve 15 and faces the connecting flange 151. A buffer pad 7 is installed at the locking point of the first coupling 22 and the second coupling 23. Through the cooperation of the first coupling 22 and the second coupling 23, the power provided by the output shaft of the variable speed hydraulic motor 21 is smoothly transmitted to the drive shaft 33. This facilitates the replacement and maintenance of the variable speed hydraulic motor 21 and the drive shaft 33, thereby reducing the load on the drive shaft 33 and decreasing the probability of the drive shaft 33 being overloaded and damaged due to excessive force during ore crushing, which could cause the force on the drive shaft 33 to react on the output shaft of the variable speed hydraulic motor 21.

[0033] Correspondingly, a limiting component 8 is installed inside the mounting sleeve 15. The limiting component 8 includes a first limiting bearing 81 and a second limiting bearing 82. The first limiting bearing 81 and the second limiting bearing 82 are coaxially fixed with the drive shaft 33. The inner wall of the mounting sleeve 15 is provided with a first limiting platform 152 and a second limiting platform 153 along the height direction. The outer ring of the first limiting bearing 81 and the diameter of the first limiting platform 152 are in an interference fit, while the diameter of the second limiting platform 153 and the outer diameter of the second limiting bearing 82 are in a transition fit. The first limiting platform 152 and the second limiting platform 153 are concentric. At the same time, a retaining spring is provided inside the second limiting platform 153 to reduce the wobbling and wobble of the second limiting bearing 82 along the second limiting platform 153. Therefore, the stability of the drive shaft 33 when rotating along the mounting sleeve 15 is improved through the cooperation of the first limiting bearing 81 and the second limiting bearing 82.

[0034] Reference Figure 3 and Figure 4 A waterproof component 6 is provided on the drive shaft 33. The waterproof component 6 includes a clamping spring 61 and two sets of skeleton oil seals 62. The two sets of skeleton oil seals 62 are coaxially arranged with the drive shaft 33 and abut against the inner wall of the base 1. The clamping spring 61 is sleeved on the drive shaft 33 and its two ends abut against the two sets of skeleton oil seals 62 respectively.

[0035] Specifically, a fixed flange 154 is installed at the end of the mounting sleeve 15 facing the crushing moving knife 31. The fixed flange 154 has a through hole through it along the thickness direction from the geometric center. The diameter of the through hole and the diameter of the drive shaft 33 are in clearance fit, so that the drive shaft 33 can rotate smoothly along the mounting sleeve 15.

[0036] Furthermore, the first limiting platform 152 has a mounting position 1521 at the end opposite to where the first limiting bearing 81 is installed. One of the skeleton oil seals 62 is located in the mounting position 1521, and the fixed flange 154 has a locking position 1531 on its surface facing the mounting position 1521. The other skeleton oil seal 62 is located in the locking position 1531, so that the two skeleton oil seals 62 are coaxial with the mounting sleeve 15. The cooperation of the two sets of skeleton oil seals 62 improves the sealing ability of the drive shaft 33 when it rotates along the mounting sleeve 15, effectively reducing the amount of mud and water entering the mounting sleeve 15 along the gap between the drive shaft 33 and the fixed flange 154.

[0037] Therefore, the elastic potential energy provided by the clamping spring 61 drives the two skeleton oil seals 62 to abut against the mounting position 1521 and the locking position 1531 respectively, reducing the probability of the skeleton oil seals becoming loose along the first limiting platform 152 or the fixed flange 154.

[0038] Meanwhile, a baffle plate 331 is provided on the side of the locking sleeve 51 away from the crushing moving knife 31. The baffle plate 331 is coaxially fixed with the drive shaft 33. The baffle plate 331 is located at the end of the fixed flange 154 away from the first limiting platform 152. The baffle plate 331 has an arc-shaped water guiding area 3311 circumferentially opened on the side facing the crushing moving knife 31. Thus, when the drive shaft 33 carries the crushing moving knife 31 and the auxiliary crushing guide knife 34 to crush the ore in the slurry along the crushing chamber 12, the slurry will splash. During the splashing process, the slurry will come into contact with the arc-shaped water guiding area 3311. At the moment the slurry comes into contact with the arc-shaped water guiding area 3311, the slurry splashes along the arc-shaped water guiding area 3311 to the edge of the arc-shaped water guiding area 3311, instead of splashing directly onto the fixed flange 154. This plays a positive guiding role in reducing the amount of slurry that splashes onto the fixed flange 154 and enters the installation sleeve 15 through the through hole.

[0039] Reference Figure 2 and Figure 5 The auxiliary crushing guide knife 34 has several guide channels 341 circumferentially opened on the surface of the crushing fixed knife 32, and the guide channels 341 are connected to the discharge port 13.

[0040] Specifically, since the number of flow channels 341 can be increased or decreased according to the size of the auxiliary crushing flow guide knife 34 and the actual usage requirements, and since the cooperation method between several flow channels 341 and the auxiliary crushing flow guide knife 34 and the function of the flow channels 341 are the same, for ease of explanation, one flow channel 341 will be described in detail below.

[0041] Furthermore, the flow channel 341 extends from the center of the auxiliary crushing and flow guiding knife 34 to the edge of the auxiliary crushing and flow guiding knife 34 and is recessed, and the width of the flow channel 341 near the center of the auxiliary crushing and flow guiding knife 34 gradually increases to the width of the flow channel 341 near the edge of the auxiliary crushing and flow guiding knife 34.

[0042] Therefore, when the drive shaft 33 drives the moving crusher 31 and the auxiliary crusher guide knife 34 to rotate, the slurry enters the crushing gap 4 along the feed chamber 11. At this time, the large particles of ore in the slurry come into contact with the moving crusher 31 and the fixed crusher 32. The large particles of ore are initially crushed by the cooperation of the moving crusher 31 and the fixed crusher 32. The crushed ore enters the space between the fixed crusher 32 and the auxiliary crusher guide knife 34 along the crushing chamber 12. The large particles of ore are then crushed a second time by the cooperation of the fixed crusher 32 and the auxiliary crusher guide knife 34. Since the guide channel 341 is connected to the discharge port 13, during the rotation of the auxiliary crusher guide knife 34 carrying the crushed ore, when the guide channel 341 faces the discharge port 13, the crushed ore in the guide channel 341 is squeezed by the subsequently crushed ore and discharged along the guide channel 341 to the discharge port 13. The crushed slurry can then be discharged through the discharge port 13, thus achieving the purpose of secondary crushing of the large particles of ore.

[0043] Reference Figure 3 and Figure 5 A locking adjustment assembly 5 is provided on the drive shaft 33. The locking adjustment assembly 5 includes a locking sleeve 51 and an adjusting sleeve 52. The locking sleeve 51 is located on the side of the crushing moving knife 31 away from the crushing fixed knife 32, and the locking sleeve 51 is coaxially fixed with the drive shaft 33. The adjusting sleeve 52 is located between the crushing moving knife 31 and the auxiliary crushing guide knife 34, and the adjusting sleeve 52 is coaxially fixed with the drive shaft 33.

[0044] Specifically, the locking sleeve 51 includes a first limiting part 511 and a second limiting part 512. The first limiting part 511 and the second limiting part 512 are enclosed to form a limiting opening that matches the cross-sectional profile of the drive shaft 33, and the first limiting part 511 and the second limiting part 512 are locked together by bolts.

[0045] Its function is that when it is necessary to adjust the size of the crushing gap 4, the base 1 can be disassembled along the fixed flange 154, the auxiliary crushing guide knife 34 can be disassembled along the drive shaft 33, and the adjusting sleeve 52 and the crushing moving knife 31 can be removed along the drive shaft 33 to replace the locking sleeve 51 and adjusting sleeve 52 of different lengths, thereby achieving the purpose of adjusting the width of the crushing gap 4.

[0046] Therefore, by replacing the locking adjustment component 5, the crushing gap 4 formed between the moving crusher 31 and the fixed crusher 32 can be adjusted to meet the crushing needs of ores of different sizes, and the operation is simple.

[0047] Correspondingly, a number of guide ribs 14 are arranged circumferentially at one end of the base 1 near the feed chamber 11, and the spacing between two adjacent guide ribs 14 is the same.

[0048] In this embodiment, since there are a large number of guide ribs 14 and several guide ribs 14 have the same function, the connection method between one of the guide ribs 14 and the base 1 and the fixed flange 154 will be described in detail below.

[0049] Specifically, the end of the guide rib 14 away from the base 1 is integrally formed with a connecting seat 9, which is fixedly connected to the fixed flange 154 by bolts to improve the rigidity of the fit between the guide rib 14 and the base 1.

[0050] Its function is to guide and divert the ore entering the crushing chamber 12 along the feed chamber 11 through several guide ribs 14, effectively reducing the probability of damage to the crushing moving knife 31 or the auxiliary crushing guide knife 34 due to excessive instantaneous amount of ore entering the crushing chamber 12 along the feed chamber 11.

[0051] In addition, the inner wall of the crushing chamber 12 is provided with a guide groove 121 in an annular shape, and the guide groove 121 is connected to the discharge port 13. The depth of the guide groove 121 gradually increases from the end away from the discharge port 13 to the end connected to the discharge port 13, so that the crushed ore can still be crushed before it is discharged to the discharge port 13 along the guide channel 341. The crushed ore can then be discharged to the discharge port 13 along the guide groove 121.

[0052] The implementation principle of a slurry crusher in this application embodiment is as follows: Since the moving crusher 31 is connected to the drive assembly 2, the moving crusher 31 is driven to rotate along the base 1 by the drive assembly 2. Since a crushing gap 4 is formed between the moving crusher 31 and the fixed crusher 32, during the process of the ore entering the crushing chamber 12 along the feed chamber 11, when the ore reaches the crushing gap 4, the moving crusher 31 and the fixed crusher 32 cooperate to squeeze, crush and roll the ore, thereby achieving the purpose of secondary crushing of the ore. The crushed ore will be discharged along the discharge port 13 of the base 1. At the same time, if the size of the ore entering the base 1 along the feed chamber 11 is smaller than the crushing gap 4, it will directly enter the crushing chamber 12 and be discharged along the discharge port 13 without secondary crushing. This reduces the resistance of the moving crusher 31 and the fixed crusher 32 when crushing the ore, and performs secondary crushing on the large particles of ore present in the ore after the primary crushing, so that the size of the crushed ore can meet the requirements of the subsequent processing steps, which plays a positive guiding role.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A slurry crusher characterized by: The utility model provides a kind of compound crusher, including base (1), the drive assembly (2) and the crushing assembly (3) are provided on the base (1), the feed cavity (11) and the crushing cavity (12) are opened on the base (1), the feed cavity (11) is communicated with the crushing cavity (12), the crushing assembly (3) includes crushing moving knife (31) and crushing fixed knife (32), the crushing fixed knife (32) is located on the crushing cavity (12), and the crushing fixed knife (32) is fixedly connected with the base (1), the crushing moving knife (31) is fixedly connected with the drive assembly (2), and the crushing moving knife (31) is located at the feed cavity (11), the crushing gap (4) is formed between the crushing moving knife (31) and the crushing fixed knife (32), the discharge port (13) is opened on the base (1), and the crushing cavity (12) is communicated with the discharge port (13).

2. A slurry crusher according to claim 1, characterized in that: The crushing assembly (3) further includes auxiliary crushing flow guide knife (34) and drive shaft (33), the drive shaft (33) is fixedly connected with the drive assembly (2), the auxiliary crushing flow guide knife (34) and the crushing moving knife (31) are coaxially fixed with the drive shaft (33), the auxiliary crushing flow guide knife (34) is located in the crushing cavity (12), and the crushing fixed knife (32) is located between the auxiliary crushing flow guide knife (34) and the crushing moving knife (31).

3. A slurry crusher according to claim 2, characterized in that: The surface of the auxiliary crushing flow guide knife (34) towards the crushing fixed knife (32) is opened with a plurality of flow guide channels (341) along the circumference, and the flow guide channels (341) are communicated with the discharge port (13).

4. A slurry crusher according to claim 2, characterized in that: The drive assembly (2) includes variable speed hydraulic motor (21), first coupling (22) and second coupling (23), the variable speed hydraulic motor (21) is arranged on the base (1), the first coupling (22) is coaxially fixed with the output shaft of the variable speed hydraulic motor (21), the second coupling (23) is coaxially fixed with the drive shaft (33), and the first coupling (22) and the second coupling (23) are locked with each other.

5. A slurry crusher according to claim 2, characterized in that: The drive shaft (33) is provided with locking adjusting assembly (5), the locking adjusting assembly (5) includes locking sleeve (51) and adjusting sleeve (52), the locking sleeve (51) is located on the side, away from the crushing fixed knife (32), of the crushing moving knife (31), and the locking sleeve (51) is coaxially fixed with the drive shaft (33), the adjusting sleeve (52) is located between the crushing moving knife (31) and the auxiliary crushing flow guide knife (34), and the adjusting sleeve (52) is coaxially fixed with the drive shaft (33).

6. A slurry crusher according to claim 5, characterised in that: The drive shaft (33) is provided with water baffle (331) on the side, away from the crushing moving knife (31), of the locking sleeve (51), and the water baffle (331) is coaxially fixed with the drive shaft (33).

7. A slurry crusher according to claim 1, characterized in that: The inner wall of the crushing cavity (12) is annularly provided with a flow guide groove (121), and the flow guide groove (121) is communicated with the discharge port (13), and the groove depth of the flow guide groove (121) gradually deepens from one end away from the discharge port (13) to one end communicated with the discharge port (13).

8. A slurry crusher according to claim 1, characterized in that: The base (1) is provided with a plurality of guide ribs (14) along the circumference near one end of the feeding cavity (11), and the spacing between two adjacent guide ribs (14) is the same.

9. A slurry crusher according to claim 2, characterized in that: The waterproof assembly (6) is arranged on the driving shaft (33), the waterproof assembly (6) comprises abutting springs (61) and two groups of skeleton oil seals (62), the two groups of skeleton oil seals (62) are coaxially arranged with the driving shaft (33), and the two groups of skeleton oil seals (62) abut against the inner wall of the base (1), the abutting springs (61) are sleeved on the driving shaft (33), and the two ends of the abutting springs (61) abut against the two groups of skeleton oil seals (62) respectively.

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