A cement grinding device for cement production

Abstract

The present invention relates to the technical field of cement production, and specifically to a cement grinding device for cement production, comprising a body for grinding cement, wherein the bottom of the body is fixedly connected to a supporting leg, and the top of the body is connected to a feed hopper; both sides of the body are fixedly connected to a circulation box, and an outlet groove is provided on the upper side of the circulation box close to one side of the body, and cement clinker is ground by fixed rollers and movable rollers, and the ground cement clinker falls onto a screen plate, and at this time, the screen plate is lifted and lowered back and forth by first hydraulic cylinders on both sides to make the screen plate reciprocate back and forth, and the ground cement clinker is screened out through the screen plate, and unqualified large particles enter the lifting plate of the inner cavity of the circulation box through the first inclined plates and the first docking plates on both sides of the screen plate, so that the ground cement clinker can be screened, so as to avoid all the cement clinker being ground again after grinding, thereby improving work efficiency, reducing the load of the device, and increasing the service life of the device.

Description

Technical Field

[0001] The invention relates to the technical field of cement production, in particular to a cement grinding device for cement production. Background Art

[0002] Cement grinding is the final process of cement manufacturing, which mainly grinds cement clinker into powder to increase the hydration area and hydration speed of cement in later use, so as to better meet the requirements of cement paste coagulation and hardening. In order to improve the quality of cement products, save energy consumption and reduce cement production costs, cement grinding technology is also constantly developing and innovating.

[0003] The existing grinding mechanism adopts a single mechanism multiple grinding treatment method to grind, so as to achieve the grinding effect. However, when the same mechanism is used for grinding, the grinding effect is basically the same. Even if the cement powder obtained by multiple grindings does not change much, the ground cement powder cannot be ground more vigorously. Moreover, the multiple grinding of the existing device is to manually put all the ground materials into the grinding device for re-grinding. This grinding operation is complicated and wastes manpower. Moreover, many of the cement powders after multiple grindings have already met the standards. At this time, the working efficiency of the device is reduced again, and the operating load of the device is increased. Summary of the invention

[0004] The object of the present invention is to provide a cement grinding device for cement production, so as to solve the problem that the multiple grindings of the existing devices are all done by manually putting all the ground materials into the grinding device for re-grinding, which is complicated and wastes manpower, and many of the cement powders after multiple grindings have already met the standards, which further reduces the working efficiency of the device and increases the operating load of the device.

[0005] To achieve the above object, a cement grinding device for cement production is provided, comprising a body for grinding cement, the bottom of the body is fixedly connected to a support leg, and the top of the body is connected to a feed hopper;

[0006] Circulation boxes are fixedly connected to both sides of the machine body, an outlet slot is provided at the upper part of the circulation box close to the machine body, an inlet slot is provided at the lower part of the circulation box close to the machine body, an inner cavity is provided in the circulation box, a lifting plate is provided in the inner cavity of the circulation box, and the lifting plate moves up and down in the inner cavity of the circulation box, the maximum height of the lifting plate is reached to the bottom position of the outlet slot, and the lowest position of the lifting plate is reached to the bottom position of the inlet slot.

[0007] As a further improvement of the present technical solution, a fixed roller is provided in the inner cavity of the body, and a first rotating rod is fixedly connected to the interior of the fixed roller, and both ends of the first rotating rod pass through the body and extend to the front and rear sides of the body, and the back of the body is fixedly connected to the first motor, and one end of the first rotating rod extends to the rear side of the body and is fixedly connected to the output shaft of the first motor, and one end of the first rotating rod extends to the front side of the body and is fixedly connected to the second rotating disk, and a movable roller is provided in the inner cavity of the body and on one side of the fixed roller, and the interior of the movable roller is fixedly connected to the second rotating rod, and both ends of the second rotating rod pass through the body and extend to the front and rear sides of the body, and one end of the second rotating rod extends to the front side of the body and is fixedly connected to the first rotating disk.

[0008] As a further improvement of the present technical solution, a round rod is provided on the surface of the machine body, one end of the round rod is rotatably connected to a sliding disk, the surface of the sliding disk is movably connected to a belt, and both ends of the belt are movably connected to the first rotating disk and the second rotating disk respectively.

[0009] As a further improvement of the technical solution, a discharge hopper is connected to the bottom of the machine body and is located directly below the inner side of the fixed roller and the movable roller. The top of the discharge hopper is fixedly connected to a first hydraulic cylinder, and the top of the first hydraulic cylinder is movably connected to a screen plate through a movable part.

[0010] As a further improvement of the technical solution, a first inclined plate is fixedly connected to the bottom of the machine body and on both sides of the discharge hopper, one side of the first inclined plate is rotatably connected to a first docking plate, one side of the first docking plate passes through the slot and extends to the inner cavity of the circulation box.

[0011] As a further improvement of the present technical solution, a second motor is fixedly connected to one side of the circulation box, a threaded rod is fixedly connected to the output end of the second motor, a moving block is threadedly connected to the surface of the threaded rod, a mounting block is fixedly connected to one side of the moving block, two groups of auxiliary rods are fixedly connected to the circulation box, the auxiliary rods are slidably connected to the middle part of the moving block, a connecting block is fixedly connected to one side of the mounting block, a vertical groove is opened on the circulation box, the connecting block passes through the vertical groove and extends to the inner cavity of the circulation box, and one end of the connecting block extending to the inner cavity of the circulation box is fixedly connected to the lifting plate.

[0012] As a further improvement of the technical solution, two groups of first fixed blocks are fixedly connected to the top of one side of the circulation box, a second hydraulic cylinder is fixedly connected to the first fixed block, a circular plate is fixedly connected to the telescopic end of the second hydraulic cylinder, transverse grooves are provided on both sides of the circular plate of the circulation box, a push plate is provided in the inner cavity of the circulation box, both sides of the push plate pass through the transverse grooves and are fixedly connected to the circular plate, two groups of second hydraulic cylinders and circular plates are also fixedly connected to the bottom of the circulation box, and a connecting plate is fixedly connected between the top and bottom circular plates.

[0013] As a further improvement of the present technical solution, a first adjusting rod is fixedly connected to one side of the connecting plate, a first semicircular plate is fixedly connected to one end of the first adjusting rod, one side of the first semicircular plate contacts the surface of the second rotating rod, a first empty groove is provided on the body and located on the outer side of the second rotating rod, first fixing rods are fixedly connected to both sides of the inner cavity of the first empty groove, first springs are fixedly connected to both sides of the inner cavity of the first empty groove and located on the surface of the first fixing rod, one end of the first spring is fixedly connected to a first extrusion plate, the surface of the first extrusion plate is slidably connected to the inner cavity of the first empty groove, and the inner sides of the two groups of the first extrusion plates contact the surface of the second rotating rod.

[0014] As a further improvement of the present technical solution, one side of the connecting plate is fixedly connected to the second adjusting rod above the first adjusting rod, the top of the second adjusting rod is fixedly connected to a triangular plate, the top of the triangular plate contacts the bottom of the round rod, the surface of the body is fixedly connected to the second fixed block at the bottom of the second adjusting rod, the second fixed block is fixedly connected to a limiting block, one side of the limiting block is fixedly connected to a second semicircular plate, the inner side of the second semicircular plate contacts the surface of the round rod, the surface of the body is provided with a second empty groove at the outside of the round rod, the upper and lower sides of the inner cavity of the second empty groove are fixedly connected to the second fixing rod, the upper and lower sides of the inner cavity of the second empty groove and the outside of the second fixing rod are fixedly connected to the second spring, one end of the second spring is fixedly connected to the second extrusion plate, the second extrusion plate is slidably connected to the inner cavity of the second empty groove, and two groups of the second extrusion plates are fixedly connected to the surface of the round rod.

[0015] As a further improvement of the technical solution, a second inclined plate is fixedly connected to the circulation box, one end of the second inclined plate is located above the feed hopper, the other end of the second inclined plate is fixedly connected to a second docking plate, one end of the second docking plate is in contact with the lifting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the cement grinding device for cement production, the cement clinker is ground by fixed rollers and movable rollers, and the ground cement clinker falls onto the screen plate. At this time, the screen plate is lifted and lowered back and forth by the first hydraulic cylinders on both sides to make the screen plate reciprocate back and forth, and the qualified ground cement clinker is screened out through the screen plate, and the unqualified large particles enter the lifting plate of the inner cavity of the circulation box through the first inclined plate and the first docking plate on both sides of the screen plate. The ground cement clinker can be screened to avoid re-grinding of all the cement clinker after grinding, thereby improving work efficiency, reducing the load of the device, and increasing the service life of the device.

[0018] 2. In the cement grinding device for cement production, the output end of the second motor rotates to drive the threaded rod to rotate, the threaded rod rotates to drive the mounting block to move, the mounting block moves to drive the lifting plate to move, when the lifting plate passes through the outlet slot and rises to the outlet slot position from the bottom circulation box with the screened large-particle cement clinker, the second hydraulic cylinder drives the push plate to move, and the push plate moves to pour the large-particle cement clinker on the lifting plate through the second inclined plate into the feed hopper for re-grinding, without manual operation, reducing manpower loss.

[0019] 3. In the cement grinding device for cement production, when the second hydraulic cylinder drives the push plate to move, it also drives the connecting plate to move, the movement of the connecting plate drives the first adjusting rod and the second adjusting rod to move, the movement of the first adjusting rod drives the first semicircular plate to move, the movement of the first semicircular plate drives the second rotating rod to move, when the second rotating rod moves, the movable roller moves toward the fixed roller, reducing the distance between the movable roller and the fixed roller, and improving the grinding intensity, so that the newly poured large-particle cement clinker can be ground more finely to obtain qualified cement clinker.

[0020] 4. In the cement grinding device for cement production, when the first adjusting rod moves to drive the moving roller and the fixed roller to change the distance, the belt will become loose, thereby reducing the speed of the moving roller, thereby reducing the grinding efficiency, reducing the accumulation speed of large particles on the screen plate, and ensuring that the lifting plate has enough time to rise and fall. Then, the triangular plate drives the round rod to a higher position and drives the sliding plate to a higher position at the same time, so that the belt is tightened again and the moving roller returns to its original speed;

[0021] In addition, the push plate can be set in a wedge shape and can move after it avoids the inlet groove, thereby reducing the rotation speed of the movable roller in advance and allowing large particles to pile up in advance, so that the large particles can be quickly discharged after the lifting plate reaches the outlet groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front structure of the present invention as a whole;

[0023] Figure 2 It is a schematic diagram of the back structure of the present invention as a whole;

[0024] Figure 3 It is a schematic diagram of the structure inside the body of the present invention;

[0025] Figure 4 It is a schematic diagram of the back structure of the circulation box of the present invention;

[0026] Figure 5 It is a front structural schematic diagram of the circulation box of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the lifting plate of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the connecting plate of the present invention;

[0029] Figure 8 For the present invention Figure 7 A magnified view of the structure at center A;

[0030] Fig. 9 It is a schematic structural diagram of the first empty slot of the present invention;

[0031] Fig.10 For the present invention Figure 7 A magnified view of the structure at B in the middle;

[0032] Fig.11 It is a schematic structural diagram of the second empty slot of the present invention;

[0033] Fig.12 It is a structural schematic diagram of the sieve plate of the present invention;

[0034] Fig.13 It is a schematic structural diagram of the second inclined plate of the present invention.

[0035] The meaning of each number in the figure is:

[0036] 1. Machine body; 2. Support legs; 3. Feed hopper; 4. Fixed roller; 5. First rotating rod; 6. First motor; 7. Moving roller; 8. Second rotating rod; 9. Circulation box; 10. Outlet; 11. Inlet; 12. Lifting plate; 13. Outlet hopper; 14. First hydraulic cylinder; 15. Screen plate; 16. First tilting plate; 17. First docking plate; 18. Second motor; 19. Threaded rod; 20. Moving block; 21. Mounting block; 22. Auxiliary rod; 23. Connecting block; 24. Vertical slot; 25. First fixed block; 26. Second hydraulic cylinder; 27. Round plate; 28. Push Plate; 29, transverse groove; 30, connecting plate; 31, first adjusting rod; 32, first semicircular plate; 33, first empty groove; 34, first fixing rod; 35, first spring; 36, first extrusion plate; 37, second adjusting rod; 38, triangular plate; 39, second fixing block; 40, limiting block; 41, second semicircular plate; 42, second empty groove; 43, second fixing rod; 44, second spring; 45, second extrusion plate; 46, round rod; 47, sliding plate; 48, first rotating plate; 49, second rotating plate; 50, belt; 51, second inclined plate; 52, second docking plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] See also Figure 1-Figure 13As shown, the purpose of this embodiment is to provide a cement grinding device for cement production, including a body 1 for grinding cement, a support leg 2 is fixedly connected to the bottom of the body 1, and a feed hopper 3 is connected to the top of the body 1;

[0041] Circulation boxes 9 are fixedly connected to both sides of the machine body 1. An outlet slot 10 is provided on the upper side of the circulation box 9 close to the machine body 1. An inlet slot 11 is provided on the lower side of the circulation box 9 close to the machine body 1. The circulation box 9 has an inner cavity. A lifting plate 12 is provided in the inner cavity of the circulation box 9. The lifting plate 12 moves up and down in the inner cavity of the circulation box 9. The maximum height of the lifting plate 12 is the bottom position of the outlet slot 10, and the lowest position of the lifting plate 12 is the bottom position of the inlet slot 11. A fixed roller 4 is provided in the inner cavity of the machine body 1. A first rotating rod 5 is fixedly connected to the interior of the fixed roller 4. Both ends of the first rotating rod 5 pass through the machine body 1 and extend to the front and rear sides of the machine body 1. A first motor 6 is fixedly connected to the back of the machine body 1. The first rotating rod 5 extends to One end of the rear side of the body 1 is fixedly connected to the output shaft of the first motor 6, and one end of the first rotating rod 5 extending to the front side of the body 1 is fixedly connected to the second rotating disk 49. A movable roller 7 is provided in the inner cavity of the body 1 and on one side of the fixed roller 4. The interior of the movable roller 7 is fixedly connected to the second rotating rod 8. Both ends of the second rotating rod 8 pass through the body 1 and extend to the front and rear sides of the body 1. One end of the second rotating rod 8 extending to the front side of the body 1 is fixedly connected to the first rotating disk 48. The first rotating disk 48 and the surface of the body 1 are provided with a round rod 46, one end of the round rod 46 is rotatably connected to a sliding disk 47, and the surface of the sliding disk 47 is movably connected to a belt 50, and the two ends of the belt 50 are respectively movably connected to the first rotating disk 48 and the second rotating disk 49.

[0042] A first adjusting rod 31 is fixedly connected to one side of the connecting plate 30, and a first semicircular plate 32 is fixedly connected to one end of the first adjusting rod 31. One side of the first semicircular plate 32 contacts the surface of the second rotating rod 8. A first slot 33 is opened on the body 1 and located on the outside of the second rotating rod 8. First fixing rods 34 are fixedly connected to both sides of the inner cavity of the first slot 33. First springs 35 are fixedly connected to both sides of the inner cavity of the first slot 33 and located on the surface of the first fixing rod 34. One end of the first spring 35 is fixedly connected to a first extrusion plate 36. The surface of the first extrusion plate 36 is slidably connected to the inner cavity of the first slot 33. The inner sides of the two groups of first extrusion plates 36 contact the surface of the second rotating rod 8. A second adjusting rod 37 is fixedly connected to one side of the connecting plate 30 and located above the first adjusting rod 31. The top of the second adjusting rod 37 is fixedly connected to three Angle plate 38, the top of the triangular plate 38 contacts the bottom of the round rod 46, the surface of the body 1 and is located at the bottom of the second adjusting rod 37 and is fixedly connected with a second fixed block 39, the second fixed block 39 is fixedly connected with a limiting block 40, one side of the limiting block 40 is fixedly connected with a second semicircular plate 41, the inner side of the second semicircular plate 41 contacts the surface of the round rod 46, the surface of the body 1 and is located on the outside of the round rod 46. A second empty groove 42 is opened, and the upper and lower sides of the inner cavity of the second empty groove 42 are fixedly connected with second fixing rods 43, and the upper and lower sides of the inner cavity of the second empty groove 42 and located on the outside of the second fixing rod 43 are fixedly connected with a second spring 44, one end of the second spring 44 is fixedly connected with a second extrusion plate 45, the second extrusion plate 45 is slidably connected to the inner cavity of the second empty groove 42, and two groups of second extrusion plates 45 are fixedly connected to the surface of the round rod 46.

[0043] When the second hydraulic cylinder 26 drives the push plate 28 to move, it also drives the connecting plate 30 to move. The movement of the connecting plate 30 drives the first adjusting rod 31 and the second adjusting rod 37 to move. The movement of the first adjusting rod 31 drives the first semicircular plate 32 to move. The movement of the first semicircular plate 32 drives the second rotating rod 8 to move. When the second rotating rod 8 moves, the movable roller 7 moves toward the fixed roller 4, reducing the distance between the movable roller 7 and the fixed roller 4 and improving the grinding intensity. In this way, the newly poured large-particle cement clinker can be ground more finely to obtain qualified cement clinker.

[0044] The second rotating rod 8 is located in the inner cavity of the first slot 33. The two groups of first springs 35 are strong springs with strong stability. Therefore, the second rotating rod 8 can be firmly clamped without external force, and the second rotating rod 8 will not affect the rotation of the movable roller 7.

[0045] When the first adjusting rod 31 moves to change the distance between the movable roller 7 and the fixed roller 4, the belt 50 will become loose, so that the movable roller 7 cannot reach the corresponding rotation speed. Therefore, when the connecting plate 30 moves to drive the first adjusting rod 31 to move, the second adjusting rod 37 also moves. The movement of the second adjusting rod 37 drives the triangular plate 38 to move. The movement of the triangular plate 38 drives the round rod 46 to a higher position, and at the same time drives the sliding plate 47 to a higher position, so that the belt 50 is tightened again and the movable roller 7 reaches the corresponding rotation speed.

[0046] The round rod 46 is located in the inner cavity of the second hollow groove 42. The two groups of second hollow grooves 42 are strong springs, which have strong stability. Therefore, the round rod 46 can be clamped firmly without being subjected to external force, and the stability of the round rod 46 will not be affected.

[0047] A discharge hopper 13 is connected to the bottom of the machine body 1 and is located directly below the inner side of the fixed roller 4 and the movable roller 7. A first hydraulic cylinder 14 is fixedly connected to the top of the discharge hopper 13. A screen plate 15 is movably connected to the top of the first hydraulic cylinder 14 through a movable part. A first inclined plate 16 is fixedly connected to the bottom of the machine body 1 and is located on both sides of the discharge hopper 13. A first docking plate 17 is rotatably connected to one side of the first inclined plate 16. One side of the first docking plate 17 passes through the inlet groove 11 and extends to the inner cavity of the circulation box 9.

[0048] The cement clinker is ground by the fixed roller 4 and the movable roller 7, and the ground cement clinker falls onto the sieve plate 15. At this time, the sieve plate 15 is lifted and lowered back and forth by the first hydraulic cylinder 14 to make the sieve plate 15 reciprocate back and forth, and the qualified ground cement clinker is screened out through the sieve plate 15, and the unqualified large particles pass through the first inclined plate 16 and the first docking plate 17 on both sides of the sieve plate 15 and enter the lifting plate 12 in the inner cavity of the circulation box 9. The ground cement clinker can be screened to avoid re-grinding of all the cement clinker after grinding, thereby improving work efficiency, reducing the load of the device, and increasing the service life of the device.

[0049] A first hydraulic cylinder 14 is fixedly connected to the top of the discharge hopper 13. When the two first hydraulic cylinders 14 on one side descend, the first hydraulic cylinder 14 on the other side remains stationary. At this time, the sieve plate 15 tilts. When the first hydraulic cylinder 14 descends to the maximum height, one side of the sieve plate 15 fits with one side of the first inclined plate 16. At this time, large particles of cement clinker can flow to the first inclined plate 16. When the first hydraulic cylinders 14 on both sides are lifted and lowered back and forth, the sieve plate 15 will reciprocate. Since the first inclined plate 16 is inclined, the large particles of cement clinker will flow to the lifting plate 12 in the inner cavity of the circulation box 9.

[0050] A second motor 18 is fixedly connected to one side of the circulation box 9, a threaded rod 19 is fixedly connected to the output end of the second motor 18, a moving block 20 is threadedly connected to the surface of the threaded rod 19, a mounting block 21 is fixedly connected to one side of the moving block 20, two sets of auxiliary rods 22 are fixedly connected to the circulation box 9, the auxiliary rods 22 are slidably connected to the middle part of the moving block 20, a connecting block 23 is fixedly connected to one side of the mounting block 21, a vertical slot 24 is provided on the circulation box 9, the connecting block 23 passes through the vertical slot 24 and extends to the inner cavity of the circulation box 9, and the connecting block 23 extends to one end of the inner cavity of the circulation box 9 and is connected to the lifting and lowering device. The plate 12 is fixedly connected, two groups of first fixed blocks 25 are fixedly connected to the top of one side of the circulation box 9, a second hydraulic cylinder 26 is fixedly connected to the first fixed block 25, a circular plate 27 is fixedly connected to the telescopic end of the second hydraulic cylinder 26, and transverse grooves 29 are provided on both sides of the circular plate 27 of the circulation box 9, and a push plate 28 is provided in the inner cavity of the circulation box 9, and the two sides of the push plate 28 pass through the transverse grooves 29 and are fixedly connected to the circular plate 27, and the bottom of the circulation box 9 is also fixedly connected with two groups of second hydraulic cylinders 26 and the circular plate 27, and a connecting plate 30 is fixedly connected between the top and bottom circular plates 27.

[0051] The output end of the second motor 18 rotates to drive the threaded rod 19 to rotate, the threaded rod 19 rotates to drive the mounting block 21 to move, the mounting block 21 moves to drive the lifting plate 12 to move, when the lifting plate 12 passes through the inlet trough 11 and rises from the bottom circulation box 9 to the outlet trough 10 with the screened large-particle cement clinker, the second hydraulic cylinder 26 drives the push plate 28 to move, and the push plate 28 moves to pour the large-particle cement clinker on the lifting plate 12 into the feed hopper 3 through the second inclined plate 51 for re-grinding, without manual operation, reducing manpower loss.

[0052] A second inclined plate 51 is fixedly connected to the circulation box 9 , one end of the second inclined plate 51 is located above the feed hopper 3 , and the other end of the second inclined plate 51 is fixedly connected to a second docking plate 52 , one end of which contacts the lifting plate 12 .

[0053] When the lifting plate 12 rises to the highest position, one side of the lifting plate 12 contacts one side of the second docking plate 52, so that the large-particle cement clinker can be well transferred to the second inclined plate 51 without moving the large-particle cement clinker to other places, thereby avoiding waste of materials.

[0054] Working principle: First, pour cement clinker into the feed hopper 3, then the output end of the first motor 6 rotates to drive the fixed roller 4 to rotate, the fixed roller 4 rotates to drive the belt 50 to rotate, the belt 50 rotates to drive the movable roller 7 to rotate, the cement clinker is ground by the fixed roller 4 and the movable roller 7, and the ground cement clinker falls onto the sieve plate 15, then the first hydraulic cylinder 14 is lifted and lowered back and forth to make the sieve plate 15 reciprocate back and forth, the ground cement clinker is screened out through the sieve plate 15, and the unqualified large particles pass through the first inclined plate 16 and the first docking plate 17 on both sides of the sieve plate 15 and enter the lifting plate 12 of the inner cavity of the circulation box 9, and the output end of the second motor 18 rotates to drive the threaded rod 19 to rotate, the threaded rod 19 rotates to drive the mounting block 21 to move, and the mounting block 21 moves with The movable lifting plate 12 moves. When the lifting plate 12 rises to the outlet slot 10 position from the bottom circulation box 9 with the screened large-particle cement clinker through the inlet slot 11, the push plate 28 is driven to move by the second hydraulic cylinder 26. The push plate 28 moves to pour the large-particle cement clinker on the lifting plate 12 into the feed hopper 3 through the second inclined plate 51 for re-grinding. When the second hydraulic cylinder 26 drives the push plate 28 to move, it also drives the connecting plate 30 to move. The movement of the connecting plate 30 drives the first adjusting rod 31 and the second adjusting rod 37 to move. The movement of the first adjusting rod 31 drives the first semicircular plate 32 to move. The movement of the first semicircular plate 32 drives the second rotating rod 8 to move. When the second rotating rod 8 moves, the movable roller 7 moves toward the fixed roller 4, thereby reducing the distance between the movable roller 7 and the fixed roller 4 and improving the grinding intensity.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cement grinding device for cement production, comprising a body (1) for grinding cement, characterized in that: The bottom of the machine body (1) is fixedly connected to a support leg (2), and the top of the machine body (1) is connected to a feed hopper (3); Both sides of the machine body (1) are fixedly connected with a circulation box (9); an outlet slot (10) is provided on the upper side of the circulation box (9) close to the machine body (1); an inlet slot (11) is provided on the lower side of the circulation box (9) close to the machine body (1); an inner cavity is provided on the circulation box (9); a lifting plate (12) is provided in the inner cavity of the circulation box (9); the lifting plate (12) moves up and down in the inner cavity of the circulation box (9); the maximum height of the lifting plate (12) is the bottom position of the outlet slot (10); and the lowest position of the lifting plate (12) is the bottom position of the inlet slot (11); The inner cavity of the machine body (1) is provided with a fixed roller (4), the interior of the fixed roller (4) is fixedly connected to a first rotating rod (5), both ends of the first rotating rod (5) penetrate the machine body (1) and extend to the front and rear sides of the machine body (1), the back of the machine body (1) is fixedly connected to a first motor (6), one end of the first rotating rod (5) extending to the rear side of the machine body (1) is fixedly connected to the output shaft of the first motor (6), one end of the first rotating rod (5) extending to the front side of the machine body (1) is fixedly connected to a second rotating disk (49), the inner cavity of the machine body (1) and located on one side of the fixed roller (4) is provided with a movable roller (7), the interior of the movable roller (7) is fixedly connected to a second rotating rod (8), both ends of the second rotating rod (8) penetrate the machine body (1) and extend to the front and rear sides of the machine body (1), one end of the second rotating rod (8) extending to the front side of the machine body (1) is fixedly connected to the first rotating disk (48), the first rotating disk (48); Two groups of first fixed blocks (25) are fixedly connected to the top of one side of the circulation box (9), a second hydraulic oil cylinder (26) is fixedly connected to the first fixed block (25), a telescopic end of the second hydraulic oil cylinder (26) is fixedly connected to a circular plate (27), transverse grooves (29) are provided on both sides of the circular plate (27) of the circulation box (9), a push plate (28) is provided in the inner cavity of the circulation box (9), both sides of the push plate (28) pass through the transverse grooves (29) and are fixedly connected to the circular plate (27), and a bottom of the circulation box (9) is also fixedly connected to two groups of second hydraulic oil cylinders (26) and the circular plate (27), and a connecting plate (30) is fixedly connected between the top and bottom circular plates (27); A first adjusting rod (31) is fixedly connected to one side of the connecting plate (30), a first semicircular plate (32) is fixedly connected to one end of the first adjusting rod (31), one side of the first semicircular plate (32) contacts the surface of the second rotating rod (8), a first slot (33) is provided on the body (1) and located outside the second rotating rod (8), both sides of the inner cavity of the first slot (33) are fixedly connected to first fixing rods (34), first springs (35) are fixedly connected to both sides of the inner cavity of the first slot (33) and located on the surface of the first fixing rod (34), one end of the first spring (35) is fixedly connected to a first extrusion plate (36), the surface of the first extrusion plate (36) is slidably connected to the inner cavity of the first slot (33), and the inner sides of two groups of the first extrusion plates (36) contact the surface of the second rotating rod (8); A second adjusting rod (37) is fixedly connected to one side of the connecting plate (30) and is located above the first adjusting rod (31); a triangular plate (38) is fixedly connected to the top of the second adjusting rod (37); the top of the triangular plate (38) contacts the bottom of the round rod (46); a second fixing block (39) is fixedly connected to the surface of the machine body (1) and is located at the bottom of the second adjusting rod (37); a limiting block (40) is fixedly connected to the second fixing block (39); a second semicircular plate (41) is fixedly connected to one side of the limiting block (40); the inner side of the second semicircular plate (41) contacts the bottom of the round rod (46); 6), a second hollow groove (42) is provided on the surface of the body (1) and located on the outside of the round rod (46), the second hollow groove (42) is fixedly connected to the upper and lower sides of the inner cavity of the second hollow groove (42) with a second fixing rod (43), the second spring (44) is fixedly connected to the upper and lower sides of the inner cavity of the second hollow groove (42) and located on the outside of the second fixing rod (43), one end of the second spring (44) is fixedly connected to a second extrusion plate (45), the second extrusion plate (45) is slidably connected to the inner cavity of the second hollow groove (42), and two groups of the second extrusion plates (45) are fixedly connected to the surface of the round rod (46).

2. The cement grinding device for cement production according to claim 1, characterized in that: A round rod (46) is provided on the surface of the machine body (1); one end of the round rod (46) is rotatably connected to a sliding disk (47); a belt (50) is movably connected to the surface of the sliding disk (47); and two ends of the belt (50) are movably connected to a first rotating disk (48) and a second rotating disk (49), respectively.

3. The cement grinding device for cement production according to claim 2, characterized in that: A discharge hopper (13) is connected to the bottom of the machine body (1) and is located directly below the inner sides of the fixed roller (4) and the movable roller (7). A first hydraulic cylinder (14) is fixedly connected to the top of the discharge hopper (13). A sieve plate (15) is movably connected to the top of the first hydraulic cylinder (14) via a movable part.

4. The cement grinding device for cement production according to claim 3, characterized in that: A first inclined plate (16) is fixedly connected to the bottom of the machine body (1) and located on both sides of the discharge hopper (13); one side of the first inclined plate (16) is rotatably connected to a first docking plate (17); one side of the first docking plate (17) passes through the inlet groove (11) and extends to the inner cavity of the circulation box (9).

5. The cement grinding device for cement production according to claim 4, characterized in that: A second motor (18) is fixedly connected to one side of the circulation box (9), a threaded rod (19) is fixedly connected to the output end of the second motor (18), a moving block (20) is threadedly connected to the surface of the threaded rod (19), a mounting block (21) is fixedly connected to one side of the moving block (20), two groups of auxiliary rods (22) are fixedly connected to the circulation box (9), the auxiliary rods (22) are slidably connected to the middle of the moving block (20), a connecting block (23) is fixedly connected to one side of the mounting block (21), a vertical groove (24) is provided on the circulation box (9), the connecting block (23) passes through the vertical groove (24) and extends to the inner cavity of the circulation box (9), and one end of the connecting block (23) extending to the inner cavity of the circulation box (9) is fixedly connected to the lifting plate (12).

6. The cement grinding device for cement production according to claim 1, characterized in that: A second inclined plate (51) is fixedly connected to the circulation box (9), one end of the second inclined plate (51) is located above the feed hopper (3), the other end of the second inclined plate (51) is fixedly connected to a second docking plate (52), and one end of the second docking plate (52) is in contact with the lifting plate (12).

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