A cement clinker crushing device for cement production

Abstract

This invention discloses a cement clinker crushing device for cement production, comprising a feeding hopper containing a feeding assembly, a first crushing assembly at the outlet of the feeding hopper, and a second crushing assembly on one side of the first crushing assembly. The first and second crushing assemblies are connected by a conveying assembly. The second crushing assembly includes a second crushing box, within which a vertically rotatable rotating shaft is mounted, on which multiple crushing blocks are fixedly mounted, with the diameter of the multiple crushing blocks increasing sequentially from top to bottom. In this invention, cement clinker, after being crushed by the first crushing assembly, enters the conveying assembly for transport and finally enters the second crushing box. During the rotation of the crushing blocks, the cement clinker is compressed and crushed, and the sequentially increasing diameter of the multiple crushing blocks enables graded crushing of the cement clinker, resulting in more thorough crushing and more uniform particle size of the obtained cement clinker.

Description

Technical Field

[0001] This invention relates to the field of cement production equipment technology, and in particular to a cement clinker crushing device for cement production. Background Technology

[0002] Cement clinker is a semi-finished product obtained by mixing limestone, clay, and iron-based raw materials in appropriate proportions to form raw meal, burning it until partially or completely melted, and then cooling it. After calcination, cement clinker needs to be crushed to make the clinker smaller and more uniform in size. However, most existing cement clinker crushing devices are single-stage crushers that use crushing rollers to crush the cement clinker, but the crushing effect is poor, and the crushed cement clinker is of inconsistent size, requiring further crushing processing, resulting in low crushing efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the prior art by providing a cement clinker crushing device for cement production.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0005] A cement clinker crushing device for cement production includes a feeding hopper, a feeding assembly inside the feeding hopper, a first crushing assembly at the outlet end of the feeding hopper, a second crushing assembly on one side of the first crushing assembly, the first crushing assembly and the second crushing assembly being connected by a conveying assembly, the second crushing assembly including a second crushing box, a rotating shaft vertically rotatably mounted inside the second crushing box, and a plurality of crushing blocks fixedly mounted on the rotating shaft, the diameter of the plurality of crushing blocks increasing sequentially from top to bottom.

[0006] Preferably, the second crushing box has a frustum-shaped structure, the upper diameter of the second crushing box is smaller than the lower diameter, and the circumferential surface of the crushed block is an inclined surface that is adapted to the side wall of the second crushing box.

[0007] Preferably, the bottom of the second crushing box is provided with a base plate, and a first motor is fixedly installed on the base plate, and the first motor and the rotating shaft are connected by transmission; the bottom of the second crushing box is provided with an output pipe for discharging cement clinker.

[0008] Preferably, a receiving plate is fixedly installed inside the second crushing box. The receiving plate is located above the rotating shaft. A discharge hole is opened in the middle of the receiving plate. A baffle is fixedly installed below the receiving plate. The baffle and the receiving plate are fixedly connected by a connecting rod. The baffle is located directly below the discharge hole. The upper end of the rotating shaft is rotatably mounted on the baffle.

[0009] Preferably, a support rod is fixedly mounted on the rotating shaft, the support rod is located below the crushed block, and a scraper is fixedly mounted on the end of the support rod away from the rotating shaft. The scraper is located between the side wall of the second crushing box and the crushed block, and the scraper is in contact with the side wall of the second crushing box.

[0010] Preferably, the feeding assembly includes a support frame fixedly installed in the feeding hopper, a second motor fixedly installed on the support frame, the second motor being drivenly connected to a conveying shaft, the conveying shaft being vertically installed, and a spiral blade fixedly installed on the conveying shaft for conveying materials.

[0011] Preferably, the first crushing component includes a first crushing box, a first conveying pipe is provided at the bottom of the first crushing box, and a crushing roller is rotatably arranged inside the first crushing box. There are two crushing rollers, and the two crushing rollers rotate in opposite directions.

[0012] Preferably, the surface of the crushing roller is fixedly provided with a plurality of crushing teeth.

[0013] Preferably, the conveying assembly includes a conveying box, a first conveying pipe connected to one end of the conveying box, and the other end of the conveying box connected to a second crushing box via a second conveying pipe. A screen plate is provided inside the conveying box, the screen plate is inclined, and a collection box is slidably disposed inside the conveying box, the collection box being located below the screen plate.

[0014] Preferably, a fixing bar is provided inside the conveying box, a spring is connected between the fixing bar and the screen plate, and a vibration motor is fixedly installed on the screen plate.

[0015] The beneficial effects of adopting the above technical solution are as follows:

[0016] 1. In this invention, cement clinker can be crushed twice by a first crushing component and a second crushing component. The crushing roller in the first crushing component can crush the cement clinker into small pieces of clinker, which are then conveyed to the second crushing component for further crushing by a conveying component. After entering the second crushing box, the cement clinker falls onto the upper surface of the crushing block. The crushing block rotates and throws the cement clinker out to impact the side wall of the second crushing box. At the same time, it slides down the side wall of the second crushing box and enters the gap between the crushing block and the side wall of the second crushing box. The crushing block can squeeze and crush the cement clinker, and the diameter of the crushing block increases sequentially, which enables the cement clinker to be graded and crushed, ultimately making the particle size of the cement clinker uniform.

[0017] 2. In this invention, the scraper can scrape the side wall of the second crushing box when it rotates with the rotating shaft, so as to remove the cement clinker adhering to the side wall of the second crushing box and avoid the occurrence of material sticking.

[0018] 3. In this invention, the conveying assembly is equipped with a screen plate. When the cement clinker is conveyed from the first crushing assembly to the second crushing assembly, it is screened by the screen plate. Cement clinker with suitable particle size can be screened out and fall into the collection box, while cement clinker with larger particle size enters the second crushing assembly for further crushing. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 yes Figure 1 Enlarged view of part A;

[0021] Figure 3 This is a schematic diagram of the first crushing component structure of the present invention;

[0022] Figure 4 This is a three-dimensional schematic diagram of the rotating shaft of the present invention;

[0023] Figure 5 This is a three-dimensional schematic diagram of the broken block of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the second crushing component of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the second crushing component according to another embodiment of the present invention;

[0026] Figure 8 This is a three-dimensional schematic diagram of the crushing blade of the present invention;

[0027] Figure 9 This is a schematic diagram of the conveying component structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the conveying component structure according to another embodiment of the present invention.

[0029] In the diagram: 1 is the feeding hopper, 2 is the second crushing box, 3 is the rotating shaft, 4 is the crushed block, 5 is the bottom plate, 6 is the output pipe, 7 is the first motor, 8 is the receiving plate, 9 is the discharge hole, 10 is the baffle, 11 is the connecting rod, 12 is the support rod, 13 is the scraper, 14 is the support frame, 15 is the second motor, 16 is the conveying shaft, 17 is the spiral blade, 18 is the first crushing box, 19 is the first conveying pipe, 20 is the crushing roller, 21 is the crushing tooth, 22 is the conveying box, 23 is the second conveying pipe, 24 is the screen plate, 25 is the collection box, 26 is the fixing bar, 27 is the spring, 28 is the vibrating motor, 29 is the support plate, 30 is the locking nut, 31 is the limiting groove, 32 is the limiting bar, 33 is the crushing blade, 34 is the fixing frame, 35 is the third motor, 36 is the driving gear, 37 is the driven gear, 38 is the extrusion plate, 39 is the sealing plate, and 40 is the dust collection pipe. Detailed Implementation

[0030] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0033] like Figure 1 and Figure 6 As shown, a cement clinker crushing device for cement production includes a feeding hopper 1, which is a funnel-shaped structure with openings at both the top and bottom. The diameter of the upper end of the feeding hopper 1 is larger than the diameter of the lower end. A feeding assembly is provided inside the feeding hopper 1 to prevent material from accumulating inside. The lower end of the feeding hopper 1 is the outlet end, and a first crushing assembly is provided at the outlet end of the feeding hopper 1 for primary crushing of the cement clinker. A second crushing assembly is provided on one side of the first crushing assembly. The first and second crushing assemblies are connected by a conveying assembly. The second crushing assembly includes a second crushing box 2, which is a cylindrical structure. A rotating shaft 3 is vertically rotatably arranged in the middle of the second crushing box 2. Multiple crushing blocks 4 are fixedly arranged on the rotating shaft 3. The crushing blocks 4 are cylindrical structures and are arranged sequentially from top to bottom. The diameter of the multiple crushing blocks 4 increases sequentially from top to bottom. Therefore, the distance between the circumferential surface of the crushing block 4 and the side wall of the second crushing box 2 gradually decreases from top to bottom.

[0034] In this invention, calcined cement clinker is conveyed to the feeding hopper 1 and falls into the first crushing component. The cement clinker undergoes initial crushing in the first crushing component. The crushed cement clinker falls from the first crushing component to the conveying component for conveying, so that the cement clinker is conveyed to the second crushing component for secondary crushing. After entering the second crushing box 2, the cement clinker falls onto the upper surface of the crushing block 4. The crushing block 4, under high-speed rotation, throws the cement clinker out, causing the cement clinker to collide with the side wall of the second crushing box 2. As a result, some cement clinker is broken into small pieces, while the uncrushed cement clinker is crushed by the crushing block 4 between the crushing block 4 and the side wall of the second crushing box 2. After being crushed into small pieces, the cement clinker falls to the bottom and is further crushed by the next level of crushing block 4. Through the graded crushing method, the cement clinker is crushed into particles with uniform particle size, thereby improving the crushing effect.

[0035] It should be noted that, as Figure 4 and Figure 5 As shown, a support plate 29 is fixedly installed at the lower part of the rotating shaft 3. The side wall of the rotating shaft 3 is provided with external threads. The middle part of the crushed block 4 is provided with an insertion hole. The rotating shaft 3 is inserted into the insertion hole of the crushed block 4. The lowermost crushed block 4 is fixedly installed on the support plate 29. A locking nut 30 is also threadedly connected to the rotating shaft 3. The locking nut 30 abuts against the uppermost crushed block 4, which can lock the crushed block 4 on the rotating shaft 3. At the same time, in order to prevent the crushed block 4 from rotating on the rotating shaft 3, a limiting groove 31 is fixedly provided along the length direction of the side wall of the rotating shaft 3. A limiting strip 32 is fixedly provided in the insertion hole of the crushed block 4. When the rotating shaft 3 is inserted into the insertion hole, the limiting strip 32 is locked in the limiting groove 31, which can prevent relative rotation between the crushed block 4 and the rotating shaft 3.

[0036] In another embodiment, such as Figure 1 and Figure 7 As shown, the second crushing box 2 has a frustum-shaped structure. The upper diameter of the second crushing box 2 is smaller than the lower diameter, so the side wall of the second crushing box 2 is inclined. The circumferential surface of the crushing block 4 is inclined, that is, the upper diameter of the crushing block 4 is smaller than the lower diameter. Therefore, the crushing block 4 is compatible with the side wall of the second crushing box 2. When crushing cement clinker, after being crushed by the crushing block 4 and the side wall of the second crushing box 2, the cement clinker can fall down along the side wall of the second crushing box 2 to continue to be crushed. The side wall of the second crushing box 2 is inclined, so that the crushed cement clinker can fall onto the upper surface of the crushing block 4. During the rotation of the crushing block 4, the cement clinker can be thrown out at high speed again and collide with the side wall of the second crushing box 2, thereby further improving the crushing effect.

[0037] Furthermore, such as Figure 6 or Figure 7As shown, a base plate 5 is provided at the bottom of the second crushing box 2, and a first motor 7 is fixedly installed in the middle of the base plate 5. The first motor 7 and the rotating shaft 3 are connected by transmission, so that the first motor 7 can drive the rotating shaft 3 to rotate, thereby driving the crushed block 4 to rotate. At the same time, an output pipe 6 is provided at the bottom of the second crushing box 2. The output pipe 6 is located below the crushed block 4. A valve is provided on the output pipe 6 to control the opening and closing of the output pipe 6. The output pipe 6 can discharge the crushed cement clinker from the second crushing box 2.

[0038] Furthermore, such as Figure 6 or Figure 7 As shown, a top plate is fixedly installed on the top of the second crushing box 2, and the top plate is connected to the second conveying pipe 23. A receiving plate 8 is also fixedly installed inside the second crushing box 2. The receiving plate 8 is located below the top plate. The receiving plate 8 has an inclined structure with high sides and low center. The receiving plate 8 is located between the top plate and the rotating shaft 3. A discharge hole 9 is opened in the middle of the receiving plate 8. A baffle 10 is fixedly installed below the receiving plate 8. The baffle 10 and the receiving plate 8 are fixedly connected by a connecting rod 11. The baffle 10 is located directly below the discharge hole 9. The upper end of the rotating shaft 3 is rotatably installed on the baffle 10. In this embodiment, the cement clinker conveyed by the conveying assembly is transported to the second crushing box 2 and falls onto the receiving plate 8. The cement clinker slides down the surface of the receiving plate 8 to the middle of the receiving plate 8 and falls from the drop hole 9. This allows the cement clinker to fall more concentratedly into the middle of the second crushing box 2. The cement clinker falling from the drop hole 9 falls onto the baffle 10 and then from the edge of the baffle 10 onto the uppermost crushing block 4. Since the cement clinker falls concentratedly from the middle, it is farther away from the edge of the second crushing box 2. When the crushing block 4 throws the cement clinker into the second crushing box 2, it has a stronger force, making the impact between the cement clinker and the side wall of the second crushing box 2 more intense and improving the crushing effect.

[0039] Furthermore, such as Figure 6 or Figure 7 As shown, a crushing blade 33 is detachably fixed on the rotating shaft 3. The crushing blade 33 is located above the baffle 10. When the rotating shaft 3 rotates, the crushing blade 33 can rotate synchronously. The cement clinker falling from the discharge hole 9 can be cut and crushed by the high-speed rotation of the crushing blade 33, so that large pieces of cement clinker are cut into small pieces, which is convenient for subsequent crushing and grinding of the crushed blocks 4.

[0040] It should be noted that, as Figure 8 As shown, the crusher 33 includes a fixed sleeve and a blade fixedly mounted on the fixed sleeve. The fixed sleeve and the rotating shaft are threaded together. The blade is inclined and can drive the fixed sleeve and the blade to rotate at high speed during the rotation of the rotating shaft 3, thereby cutting the cement clinker.

[0041] Furthermore, such as Figure 6 or Figure 7 As shown, a support rod 12 is fixedly mounted on the rotating shaft 3. The support rod 12 is horizontally positioned below the crushed block 4. A scraper 13 is fixedly mounted on the end of the support rod 12 away from the rotating shaft 3. The scraper 13 is located between the side wall of the second crushing box 2 and the crushed block 4, and is in contact with the side wall of the second crushing box 2. In this embodiment, the cement clinker squeezed by the crushed block 4 easily adheres to the side wall of the second crushing box 2. During the rotation of the rotating shaft 3, the scraper 13 can drive the scraper 13 to rotate along the side wall of the second crushing box 2, thereby scraping off the cement clinker adhering to the side wall of the second crushing box 2 and causing the cement clinker to fall off.

[0042] It should be noted that the support rod 12 is located below the crushed block 4 and is also in contact with the bottom plate 5. During the rotation of the rotating shaft 3, the support rod 12 is driven to rotate, which can stir the cement clinker that falls below the crushed block 4 after crushing. During the stirring process, the cement clinker can be discharged from the output pipe 6 to avoid the accumulation and blockage of cement clinker.

[0043] In another embodiment, the scraper 13 is fixedly disposed on the circumferential surface of the crushing block 4 and is in contact with the side wall of the second crushing box 2. When the crushing block 4 rotates, the scraper 13 can rotate synchronously with the crushing block 4, thereby scraping off the cement clinker adhering to the side wall of the second crushing box 2.

[0044] Furthermore, such as Figure 1 and Figure 2 As shown, the feeding assembly includes a support frame 14 fixedly installed inside the feeding hopper 1. The support frame 14 is located at the upper end of the feeding hopper 1 and has a cross-shaped structure. A second motor 15 is fixedly installed on the support frame 14. The second motor 15 is driven by a conveying shaft 16. The conveying shaft 16 is vertically arranged and has a spiral blade 17 fixedly installed on it for conveying materials. In this embodiment, a large amount of calcined cement clinker accumulates in the feeding hopper 1. To prevent the cement clinker from clogging in the feeding hopper 1, the spiral blade 17 rotates when the second motor 15 drives the conveying shaft 16 to rotate, thereby conveying the cement clinker in the feeding hopper 1 to the first crushing assembly to prevent accumulation and clogging.

[0045] Furthermore, such as Figure 1 and Figure 3As shown, the first crushing assembly includes a first crushing box 18, a first conveying pipe 19 is provided at the bottom of the first crushing box 18, and a crushing roller 20 is rotatably arranged inside the first crushing box 18. There are two crushing rollers 20, and the two crushing rollers 20 rotate in opposite directions. Multiple crushing teeth 21 are fixedly arranged on the circumferential surface of the crushing rollers 20. When the cement clinker falls from the feed hopper 1 into the first crushing box 18, it can be cut and crushed into small pieces of cement clinker by the crushing teeth 21 when it passes between the two crushing rollers 20. The crushed cement clinker falls below the crushing rollers 20 and can be discharged from the first crushing box 18 through the first conveying pipe 19.

[0046] It should be noted that, in order to drive the crushing roller 20 to rotate inside the first crushing box 18, a third motor 35 is fixedly installed on the outer wall of the first crushing box 18 by a fixing frame 34. The output shaft of the third motor 35 is rotatably equipped with a drive gear 36. The drive gear 36 is fixedly connected to one end of one of the crushing rollers 20, and a driven gear 37 is fixedly installed at one end of the other crushing roller 20. The drive gear 36 and the driven gear 37 mesh with each other. When the third motor 35 drives the drive gear 36 to rotate, the driven gear 37 meshing with the drive gear 36 rotates synchronously, thereby driving the two crushing rollers 20 to rotate in opposite directions.

[0047] Furthermore, such as Figure 1 and Figure 9 As shown, the conveying assembly includes a conveying box 22, a first conveying pipe 19 connected to one end of the conveying box 22, and the other end of the conveying box 22 connected to a second crushing box 2 via a second conveying pipe 23. The height of the first conveying pipe 19 is greater than the height of the second conveying pipe 23. A screen plate 24 is provided inside the conveying box 22, and the screen plate 24 is inclined, with the end of the screen plate 24 near the first conveying pipe 19 being higher than the end near the second conveying pipe 23. A collection box 25 is slidably disposed inside the conveying box 22, and the collection box 25 is located below the screen plate 24. In this embodiment, after the first crushing... After the cement clinker crushed by the crushing roller 20 in the box 18 is discharged from the first conveying pipe 19, it falls onto the screen plate 24 in the conveying box 22. The cement clinker rolls down the screen plate 24 into the second conveying pipe 23 and is conveyed to the second crushing box 2 for further crushing. Since the screen plate 24 is provided with multiple screen holes, when the crushed cement clinker particles are smaller than the screen holes during the process of the cement clinker rolling down the screen plate 24, they can fall from the screen holes to the bottom of the screen plate 24 and fall into the collection box 25 for centralized collection. Cement clinker particles larger than the screen holes enter the second crushing box 2 for further crushing.

[0048] Furthermore, a fixing strip 26 is provided inside the conveying box 22. The fixing strip 26 is fixedly installed on the inner wall of the conveying box 22 and is located below the screen plate 24. A spring 27 is connected between the fixing strip 26 and the screen plate 24. A vibration motor 28 is fixedly installed on the screen plate 24. The vibration of the vibration motor 28 can make the screen plate 24 vibrate, thereby enhancing the screening effect of cement clinker and accelerating the rolling speed of cement clinker on the screen plate 24.

[0049] In another embodiment, such as Figure 1 and Figure 10 As shown, an extrusion plate 38 is fixedly installed inside the conveying box 22. The extrusion plate 38 is inclined, with the end of the extrusion plate 38 near the first conveying pipe 19 being higher than the end near the second conveying pipe 23. A screen plate 24 is also slidably installed inside the conveying box 22. The screen plate 24 and the extrusion plate 38 are arranged parallel to each other and are connected by a spring 27. A vibration motor 28 is fixedly installed at the bottom of the screen plate 24. The output end of the first conveying pipe 19 and the input end of the second conveying pipe 23 are located between the screen plate 24 and the extrusion plate 38. In this embodiment, the cement clinker discharged from the first crushing box 18 is from... The output end of the first conveying pipe 19 falls onto the screen plate 24, and the cement clinker rolls down the screen plate 24 to the input end of the second conveying pipe 23, and is finally conveyed to the second crushing box 2. During the rolling of the cement clinker, the vibrating motor 28 causes the screen plate 24 to vibrate, so that the screen plate 24 continuously reciprocates in the direction close to the extrusion plate 38 and away from the extrusion plate 38. When close to the extrusion plate 38, the screen plate 24 and the extrusion plate 38 can squeeze the cement clinker falling on the screen plate 24, so that the cement clinker is crushed. The crushed cement clinker can fall from the screen holes of the screen plate 24 to the collection box 25 below for collection.

[0050] Furthermore, a sealing plate 39 is vertically installed at one end of the sieve plate 24 near the first conveying pipe 19. The sealing plate 39 abuts against the inner wall of the conveying box 22. A sliding groove is opened at one end of the extrusion plate 38 near the first conveying pipe 19. The sealing plate 39 can be slidably installed in the sliding groove. When the vibrating motor 28 moves the sieve plate 24 toward the extrusion plate 38, the sealing plate 39 slides upward. The sealing plate 39 can seal the output end of the first conveying pipe 19 to prevent cement clinker from entering the conveying box 22 from the first conveying pipe 19. At this time, the cement clinker can be crushed by the sieve plate 24 and the extrusion plate 38. Conversely, when the sieve plate 24 moves away from the extrusion plate 38, the sealing plate 39 slides out of the sliding groove and slides to below the output end of the first conveying pipe 19, so that the cement clinker can enter the conveying box 22 from the first conveying pipe 19 for conveying.

[0051] Furthermore, dust collection pipes 40 are connected to the first crushing box 18, the second crushing box 2, and the conveying box 22. One end of the dust collection pipe 40 is connected to a dust collection device, which can be a commercially available bag filter. In the process of crushing cement clinker, in order to prevent the dust generated during the crushing process from drifting into the air and causing environmental pollution, the dust can enter the bag filter through the dust collection pipe 40 for dust removal.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cement clinker crushing device for cement production, characterized by, Including the blanking bin (1), the blanking bin (1) is provided with blanking assembly, the outlet end of blanking bin (1) is provided with first crushing assembly, one side of first crushing assembly is equipped with second crushing assembly, first crushing assembly and second crushing assembly are connected through conveying assembly, second crushing assembly includes second crushing box (2), vertical rotation is provided with rotating shaft (3) in second crushing box (2), a plurality of crushing blocks (4) are fixedly arranged on rotating shaft (3), the diameter of a plurality of crushing blocks (4) increases gradually from top to bottom; The first crushing assembly includes a first crushing box (18), the bottom of the first crushing box (18) is provided with a first conveying pipe (19), and the first crushing box (18) is rotatably provided with a crushing roller (20). The crushing roller (20) is provided with two, and the rotating directions of the two crushing rollers (20) are opposite. The conveying assembly includes a conveying box (22), the first conveying pipe (19) is connected with one end of the conveying box (22), the other end of the conveying box (22) is connected with the second conveying pipe (23) and the second crushing box (2), the collecting box (25) is slidably arranged in the conveying box (22), and the collecting box (25) is located below the sieve plate (24). The conveying box (22) is fixedly provided with an extrusion plate (38), the extrusion plate (38) is inclined, one end of the extrusion plate (38) close to the first conveying pipe (19) is higher than the other end close to the second conveying pipe (23), the sieve plate (24) is also slidably arranged in the conveying box (22), the sieve plate (24) and the extrusion plate (38) are arranged in parallel, the sieve plate (24) and the extrusion plate (38) are connected by a spring (27), the bottom of the sieve plate (24) is fixedly provided with a vibration motor (28), and the output end of the first conveying pipe (19) and the input end of the second conveying pipe (23) are located between the sieve plate (24) and the extrusion plate (38).

2. A cement clinker crushing device for cement production according to claim 1, characterized in that, The second crushing box (2) is a circular truncated cone structure, the upper end diameter of the second crushing box (2) is smaller than the lower end diameter, and the circumferential surface of the crushing block (4) is an inclined surface matched with the side wall of the second crushing box (2).

3. A cement clinker crushing device for cement production according to claim 2, characterized in that, The bottom of the second crushing box (2) is provided with a bottom plate (5), the first motor (7) is fixedly arranged on the bottom plate (5), and the first motor (7) is in transmission connection with the rotating shaft (3). The bottom of the second crushing box (2) is provided with an output pipe (6) for discharging cement clinker.

4. A cement clinker crushing device for cement production according to claim 2, characterized in that, The second crushing box (2) is fixedly provided with a receiving plate (8), the receiving plate (8) is located above the rotating shaft (3), a discharging hole (9) is formed in the middle of the receiving plate (8), a baffle (10) is fixedly arranged below the receiving plate (8), the baffle (10) and the receiving plate (8) are fixedly connected through a connecting rod (11), the baffle (10) is located directly below the discharging hole (9), and the upper end of the rotating shaft (3) is rotatably arranged on the baffle (10).

5. A cement clinker crushing device for cement production according to claim 2, characterized in that, The rotating shaft (3) is fixedly provided with a supporting rod (12), the supporting rod (12) is located below the crushing block (4), one end of the supporting rod (12) away from the rotating shaft (3) is fixedly provided with a scraper (13), the scraper (13) is located between the side wall of the second crushing box (2) and the crushing block (4), and the scraper (13) is attached to the side wall of the second crushing box (2).

6. A cement clinker crushing device for cement production according to claim 1, characterized in that, The discharging assembly comprises a supporting frame (14) fixedly arranged in the discharging bin (1), a second motor (15) fixedly arranged on the supporting frame (14), a conveying shaft (16) in driving connection with the second motor (15), the conveying shaft (16) being vertically arranged, and a spiral blade (17) fixedly arranged on the conveying shaft (16) for conveying materials.

7. A cement clinker crushing device for cement production according to claim 1, characterized in that, The surface of the crushing roller (20) is fixedly provided with a plurality of crushing teeth (21).

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