Cement clinker grinding equipment for cement preparation

Abstract

The invention relates to the technical field of cement production, in particular to cement clinker grinding equipment for cement preparation, which comprises a grinding machine body, a protective screen plate, a fixed grinding disc, a circular plate and a feeding pipe are fixedly mounted on the grinding machine body, the fixed grinding disc is arranged right above the circular plate, the circular plate is rotatably connected with a rotating shaft, and the rotating shaft is rotatably connected with the feeding pipe. A rotating assembly is arranged on the rotating shaft, and a plurality of shutter air openings are formed in the fixed grinding disc. A cam is fixedly connected to the rotating shaft, two supporting blocks are slidably connected to the circular plate, each supporting block is connected with the circular plate through a second spring, an arc-shaped block is fixedly connected to one side of each supporting block, and an inclined face is arranged on each supporting block. According to the device, large-particle cement clinker powder blocked in meshes can be extruded out, a protective screen plate can be thoroughly cleaned, the protective screen plate can be conveniently and rapidly cleaned, the cleaning operation is simple, convenient and rapid, and use of grinding equipment is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of cement production, and in particular to cement clinker grinding equipment for cement preparation. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to cement production is also constantly improving. Cement clinker is a semi-finished cement made from limestone, clay and iron raw materials as the main raw materials, which are prepared into cement raw materials in appropriate proportions, and then calcined and cooled. Cement clinker needs to go through grinding, powder selection and other processes to finally obtain finished cement. The cement clinker grinding process requires grinding equipment.

[0003] At present, the protective mesh plate on the top of the cement clinker grinding equipment used for cement preparation is prone to clogging after long-term use. It is inconvenient for the staff to clean the protective mesh plate, and the cleaning operation is cumbersome and inconvenient, which is not conducive to the use of the grinding equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: the cement clinker grinding equipment currently used for cement preparation is prone to clogging of the protective mesh plate above it after long-term use, and it is inconvenient for the staff to clean the protective mesh plate. The cleaning operation is relatively cumbersome and inconvenient, which is not conducive to the use of the grinding equipment. A cement clinker grinding equipment for cement preparation is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cement clinker grinding device for cement preparation comprises a grinding machine body, on which a protective screen, a fixed grinding disc, a circular plate and a feed pipe are fixedly mounted, the fixed grinding disc is arranged directly above the circular plate, a rotating shaft is rotatably connected to the circular plate, a rotating assembly is arranged on the rotating shaft, and a plurality of louvered air outlets are opened on the fixed grinding disc;

[0007] A cam is fixedly connected to the rotating shaft, and two support blocks are slidably connected to the circular plate, each of the support blocks is connected to the circular plate via a second spring, an arc block is fixedly connected to one side of the support block, and an inclined surface is arranged on the support block. Both side surfaces of the grinding machine body are fixedly connected to limiting plates, and each limiting plate is provided with a sliding component, and the sliding component includes a vertical rod slidably mounted on the limiting plate, and the lower end of the vertical rod is fitted with the inclined surface of the corresponding support block. Two knocking bars are rotatably mounted on the inner wall of the grinding machine body, and each of the knocking bars is connected to the corresponding vertical rod via a pull rope. Both sides of the grinding machine body are fixedly connected with mounting blocks, and each mounting block is provided with a flipping component.

[0008] Preferably, the rotating assembly includes a support cylinder slidably mounted on the rotating shaft, a cross plate is fixedly connected to the rotating shaft, a plurality of third springs are fixedly connected to the cross plate, each of the third springs is fixedly connected to the inner surface of the support cylinder, and two grinding wheels are fixedly connected to the support cylinder.

[0009] Preferably, each of the flipping assemblies comprises a semicircular plate rotatably arranged on the corresponding mounting block, a plurality of first springs are fixedly connected to a surface of one side of the semicircular plate, one end of the plurality of first springs is fixedly connected to a pressure plate, a plurality of extrusion rods are fixedly connected to the pressure plate, and each of the extrusion rods is slidably connected to the semicircular plate.

[0010] Preferably, a plurality of limit rods are fixedly connected to the upper surface of the grinding machine body, and the plurality of limit rods are symmetrically arranged.

[0011] Preferably, a bidirectional screw is rotatably connected to the grinding machine body, two fixed blocks are threadedly connected to the bidirectional screw, two reinforcing plates are fixedly connected to the grinding machine body, each of the reinforcing plates is slidably connected to a bracket, each of the fixed blocks is provided with an opening with a right-angled trapezoidal cross-section, and the upper end of the bracket fits with the inclined surface corresponding to the opening.

[0012] Preferably, each of the brackets is sleeved with a return spring, one end of the return spring is fixedly connected to the reinforcement plate, and the other end of the return spring is fixedly connected to the bracket.

[0013] Preferably, a fixing rod is fixedly connected to the grinding machine body, and each of the fixing blocks is slidably connected to the fixing rod.

[0014] Preferably, each of the brackets is slidably connected to two limit blocks with a T-shaped cross-section, each of the limit blocks is provided with a circular groove, the two limit blocks are connected by a rotating rod, a plurality of pulleys are fixedly connected to the rotating rod, and a rotating ring for connecting the rotating rod is rotatably provided in each of the circular grooves.

[0015] Preferably, each of the limit blocks is connected to the corresponding bracket via two bolts, and two thread grooves are provided on both side surfaces of the bracket.

[0016] Preferably, a mounting seat is fixedly connected to the rotating shaft, and the mounting seat is connected to a plurality of fan blades via a plurality of screws. An arc-shaped cover plate is clamped on one side of the grinding machine body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. During the back-and-forth rotation of the knocking bar, the lower surface of the protective mesh plate can be knocked for many times. The protective mesh plate vibrates so that the cement clinker powder adhering to its lower surface can be separated, which is beneficial to prevent the protective mesh plate from being blocked. When the grinding machine body stops using, the two semicircular plates can be rotated until the surface of each semicircular plate fits the upper end surface of the corresponding limit rod respectively, and the two pressing plates are pressed downward. After each extrusion rod moves, one end of the extrusion rod will be inserted into the mesh of the protective mesh plate, which can squeeze out the large-particle cement clinker powder blocked in the mesh, and clean the protective mesh plate more thoroughly, which is convenient for quick cleaning of the protective mesh plate. The cleaning operation is relatively simple and quick, which is beneficial to the use of the grinding equipment;

[0019] 2. When the grinding machine body needs to be moved, the motor drives the bidirectional screw to rotate, the distance between the two fixed blocks is reduced, and the inclined surfaces of each opening move against the bracket. During the movement, the two brackets will move downward, and each pulley will contact the ground, and the lower surface of the grinding machine body will be separated from the ground. At this time, the grinding machine body is pushed and the pulley rolls, which can drive the grinding machine body to move quickly, so as to facilitate the rapid movement of the grinding machine body. There is no need for the staff to cooperate in manual movement, which is beneficial to reduce the workload of the staff and is beneficial to the use of the grinding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front structural schematic diagram of a cement clinker grinding device for cement preparation proposed by the present invention;

[0021] Figure 2 This is a side structural schematic diagram of a cement clinker grinding device for cement preparation proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a cement clinker grinding device for cement preparation proposed by the present invention from a bottom view;

[0023] Figure 4 A schematic diagram of the partial internal structure of a cement clinker grinding device for cement preparation proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the front partial internal structure of a cement clinker grinding device for cement preparation proposed by the present invention;

[0025] Figure 6 It is a schematic diagram of the side structure of the semicircular plate and the pressing plate in the present invention;

[0026] Figure 7 It is a schematic diagram of the partial internal structure of the limit block and the bracket in the present invention.

[0027] In the figure: 1 grinding body, 2 arc cover plate, 3 limit rod, 4 protective mesh plate, 5 extrusion rod, 6 limit plate, 7 semicircular plate, 8 mounting block, 9 pressure plate, 10 vertical rod, 11 support block, 12 fixed rod, 13 rotating rod, 14 fixed block, 15 bidirectional screw rod, 16 pulley, 17 bracket, 18 rotating shaft, 19 pull rope, 20 grinding wheel, 21 arc block, 22 circular plate, 23 reinforcement plate, 24 cam, 25 mounting seat, 26 fan blade, 27 support cylinder, 28 knocking bar, 29 horizontal plate, 30 fixed grinding disc, 31 opening, 32 reset spring, 33 second spring, 34 third spring, 35 bolt, 36 limit block, 37 rotating ring, 38 first spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1-Figure 7 A cement clinker grinding device for cement preparation comprises a grinding machine body 1, on which a protective mesh plate 4, a fixed grinding disc 30, a circular plate 22 and a feed pipe are fixedly installed. The fixed grinding disc 30 is arranged directly above the circular plate 22, and a rotating shaft 18 is rotatably connected to the circular plate 22. A rotating assembly is arranged on the rotating shaft 18, and a plurality of louver air outlets are opened on the fixed grinding disc 30. A cam 24 is fixedly connected to the rotating shaft 18. Two support blocks 11 are slidably connected to the circular plate 22, and each support block 11 is connected to the circular plate 22 through a second spring 33. An arc block 21 is fixedly connected to one side of the support block 11, and an inclined surface is arranged on the support block 11. The two side surfaces of the grinding machine body 1 are fixedly connected to a limiting plate 6, and each limiting plate 6 is provided with a sliding assembly. The sliding assembly comprises a vertical rod 10 slidably mounted on the limiting plate 6, and the lower end of the vertical rod 10 is fitted with the inclined surface of the corresponding support block 11.

[0030] Two knocking bars 28 are rotatably installed on the inner wall of the grinding machine body 1, and each knocking bar 28 is connected to the corresponding vertical rod 10 through a pull rope 19. Mounting blocks 8 are fixedly connected on both sides of the grinding machine body 1, and each mounting block 8 is provided with a flip assembly. The rotating assembly includes a support cylinder 27 slidably installed on the rotating shaft 18, and a cross plate 29 is fixedly connected to the rotating shaft 18. A plurality of third springs 34 are fixedly connected to the cross plate 29, and each third spring 34 is fixedly connected to the inner surface of the support cylinder 27. Two grinding wheels 20 are fixedly connected to the support cylinder 27. The upper surface of the fixed grinding disc 30 is a hill-like structure with a slightly higher center and lower surroundings, and a slightly raised annular cofferdam portion is also provided on the edge of the fixed grinding disc 30. The material can be ground during the rotation of the two grinding wheels 20. When the two grinding wheels 20 move to above the surface of the fixed grinding disc 30 of different heights, the support cylinder 27 will slide relative to the rotating shaft 18, and the third spring 34 will deform.

[0031] Each flip assembly includes a semicircular plate 7 rotatably arranged on the corresponding mounting block 8, a plurality of first springs 38 are fixedly connected to the surface of one side of the semicircular plate 7, one end of the plurality of first springs 38 is fixedly connected to a pressure plate 9, a plurality of extrusion rods 5 are fixedly connected to the pressure plate 9, each extrusion rod 5 is slidably connected to the semicircular plate 7, a plurality of limit rods 3 are fixedly connected to the upper surface of the grinding machine body 1, and the plurality of limit rods 3 are symmetrically arranged, and the two semicircular plates 7 are rotated to rotate upward until the surfaces of each semicircular plate 7 are respectively fitted with the upper end surfaces of the corresponding limit rods 3, and then the two pressure plates 9 are pressed downward, the distance between the pressure plate 9 and the semicircular plate 7 is reduced, and the plurality of first springs 38 are deformed. After each extrusion rod 5 moves, the end of the extrusion rod 5 away from the pressure plate 9 will be inserted into the corresponding mesh hole on the protective mesh plate 4, so that the large-particle cement clinker powder blocked in the mesh hole can be squeezed out.

[0032] A bidirectional screw rod 15 is rotatably connected to the grinding machine body 1, and two fixed blocks 14 are threadedly connected to the bidirectional screw rod 15. Two reinforcing plates 23 are fixedly connected to the grinding machine body 1, and each reinforcing plate 23 is slidably connected to a bracket 17. Each fixed block 14 is provided with an opening 31 with a right-angled trapezoidal cross-section. The upper end of the bracket 17 fits with the inclined surface of the corresponding opening 31. A reset spring 32 is sleeved on each bracket 17, and one end of the reset spring 32 is fixedly connected to the reinforcing plate 23, and the other end of the reset spring 32 is fixedly connected to the bracket 17.

[0033] A fixed rod 12 is fixedly connected to the grinding machine body 1, and each fixed block 14 is slidably connected to the fixed rod 12. The motor drives the bidirectional screw 15 to rotate, and the two fixed blocks 14 will move along the bidirectional screw 15 at the same time, and slide relative to the fixed rod 12. The distance between the two fixed blocks 14 is reduced. During the movement of the inclined surface of each opening 31 against the bracket 17, the bracket 17 will slide relative to the reinforcing plate 23, and the reset spring 32 will be deformed. After the bracket 17 moves downward, each pulley 16 will contact the ground, and the lower surface of the grinding machine body 1 will be separated from the ground. At this time, the grinding machine body 1 is pushed, the pulley 16 will roll, and then the grinding machine body 1 can be driven to move quickly.

[0034] The two ends of the rotating rod 13 are gradually inserted into the circular grooves of the two limit blocks 36, and the surface of the rotating ring 37 contacts the surface of the rotating rod 13. Then, one end of each bolt 35 is passed through the corresponding limit block 36 and is threadedly connected to the threaded groove to prevent the limit block 36 from moving with the bracket 17, so as to realize the quick installation of the pulley 16. When the pulley 16 is damaged, it is convenient to disassemble and replace it.

[0035] A mounting seat 25 is fixedly connected to the rotating shaft 18, and the mounting seat 25 is connected to multiple fan blades 26 through multiple screws. An arc-shaped cover plate 2 is clamped on one side of the grinding machine body 1. One end of each screw is passed through the fan blade 26 and threadedly connected to the mounting seat 25, so that the fan blade 26 and the mounting seat 25 can be firmly installed together. When there is a lot of dust on the surface of the fan blade 26, the arc-shaped cover plate 2 is separated from the grinding machine body 1, and the fan blade 26 can be removed for cleaning.

[0036] In the present invention, when in use, the material is put into the fixed grinding disc 30 through the feed pipe, and the rotating shaft 18 rotates under the driving action of the motor, thereby driving the support cylinder 27 to rotate together. The upper surface of the fixed grinding disc 30 is a hill-like structure with a slightly higher center and lower surroundings, and the edge of the fixed grinding disc 30 is also provided with a slightly raised annular cofferdam portion. The material can be ground during the rotation of the two grinding wheels 20. The space between the circular plate 22 and the fixed grinding disc 30 is connected to the external hot air. During the rotation of the multiple fan blades 26, the hot air can be transported upward through the multiple louver air outlets. The cement clinker powder after grinding and drying is lifted upward by the fan blades 26 for wind transportation, and the protective mesh plate 4 simultaneously screens the cement clinker powder.

[0037] As the cam 24 rotates along with the rotating shaft 18, it will squeeze and disengage from the arc surfaces of the two arc blocks 21 many times. When the arc block 21 is squeezed, it will drive the support block 11 to move together, that is, the support block 11 and the circular plate 22 will slide relative to each other. Since one end of the second spring 33 is fixedly connected to the circular plate 22, and the other end is fixedly connected to the support block 11, the second spring 33 is deformed. During the movement of the support block 11, its inclined surface will move against the lower end surface of the vertical rod 10, thereby pushing the vertical rod 10 to move upward. Since the two ends of the inelastic pull rope 19 are respectively fixedly connected to the knocking bar 28 and the vertical rod 10, the knocking bar 28 will deflect upward under the transmission action of the pull rope 19 and knock on the lower surface of the protective mesh plate 4. The protective mesh plate 4 vibrates to facilitate the detachment of the cement clinker powder adhered to its lower surface, which is beneficial to prevent the protective mesh plate 4 from being blocked.

[0038] When the grinding machine body 1 stops using, the two semicircular plates 7 can be rotated to rotate upward until the surface of each semicircular plate 7 is respectively fitted with the upper end surface of the corresponding limit rod 3. At this time, the two semicircular plates 7 and the protective mesh plate 4 are in a parallel state. Then, the two pressing plates 9 are pressed downward, and the distance between the pressing plates 9 and the semicircular plates 7 is reduced. The multiple first springs 38 are deformed, and after each extrusion rod 5 moves, the end of the extrusion rod 5 away from the pressing plate 9 will be inserted into the corresponding mesh hole on the protective mesh plate 4, so that the large-particle cement clinker powder blocked in the mesh hole can be squeezed out, and the protective mesh plate 4 can be cleaned more thoroughly, which is convenient for quick cleaning of the protective mesh plate 4. The cleaning operation is relatively simple and quick, which is conducive to the use of the grinding equipment.

[0039] In the initial state, the lower surface of the grinding machine body 1 is in contact with the ground, and each pulley 16 is not in contact with the ground. When the grinding machine body 1 needs to be moved, the motor drives the bidirectional screw 15 to rotate, and the two fixed blocks 14 will move along the bidirectional screw 15 at the same time, and slide relative to the fixed rod 12, and the distance between the two fixed blocks 14 is reduced. During the movement of the inclined surface of each opening 31 against the bracket 17, the bracket 17 will slide relative to the reinforcing plate 23, and the reset spring 32 will be deformed. After the bracket 17 moves downward, each pulley 16 will contact the ground, and the lower surface of the grinding machine body 1 will be separated from the ground. At this time, the grinding machine body 1 is pushed, the pulley 16 will roll, and then the grinding machine body 1 can be driven to move quickly, so as to facilitate the rapid movement of the grinding machine body 1, and there is no need for the staff to cooperate in manual movement, which is beneficial to reduce the workload of the staff and is beneficial to the use of the grinding equipment.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cement clinker grinding device for cement production, comprising a grinding machine body (1), characterized in that: The grinding machine body (1) is fixedly mounted with a protective screen plate (4), a fixed grinding disc (30), a circular plate (22) and a feed pipe; the fixed grinding disc (30) is arranged directly above the circular plate (22); a rotating shaft (18) is rotatably connected to the circular plate (22); a rotating assembly is arranged on the rotating shaft (18); and a plurality of louvered air outlets are provided on the fixed grinding disc (30); The rotating shaft (18) is fixedly connected to a cam (24); the circular plate (22) is slidably connected to two support blocks (11); each of the support blocks (11) is connected to the circular plate (22) via a second spring (33); one side of the support block (11) is fixedly connected to an arc block (21); an inclined surface is provided on the support block (11); both side surfaces of the grinding machine body (1) are fixedly connected to a limit plate (6); each limit plate (6) is provided with a sliding component The sliding assembly comprises a vertical rod (10) slidably mounted on the limiting plate (6), the lower end of the vertical rod (10) being in contact with the inclined surface of the corresponding support block (11), two knocking bars (28) being rotatably mounted on the inner wall of the grinding machine body (1), each of the knocking bars (28) being connected to the corresponding vertical rod (10) via a pull rope (19), and mounting blocks (8) being fixedly connected to both sides of the grinding machine body (1), and a flip assembly being arranged on each of the mounting blocks (8).

2. The cement clinker grinding equipment for cement preparation according to claim 1, characterized in that: The rotating assembly comprises a support cylinder (27) slidably mounted on the rotating shaft (18), a transverse plate (29) being fixedly connected to the rotating shaft (18), a plurality of third springs (34) being fixedly connected to the transverse plate (29), each of the third springs (34) being fixedly connected to the inner surface of the support cylinder (27), and two grinding wheels (20) being fixedly connected to the support cylinder (27).

3. The cement clinker grinding equipment for cement preparation according to claim 1, characterized in that: Each of the flipping assemblies comprises a semicircular plate (7) rotatably arranged on the corresponding mounting block (8); a plurality of first springs (38) are fixedly connected to a surface of one side of the semicircular plate (7); one end of each of the plurality of first springs (38) is fixedly connected to a pressure plate (9); a plurality of extrusion rods (5) are fixedly connected to the pressure plate (9); and each of the extrusion rods (5) is slidably connected to the semicircular plate (7).

4. The cement clinker grinding equipment for cement preparation according to claim 1, characterized in that: A plurality of limit rods (3) are fixedly connected to the upper surface of the grinding machine body (1), and the plurality of limit rods (3) are symmetrically arranged.

5. The cement clinker grinding equipment for cement preparation according to claim 1, characterized in that: The grinding machine body (1) is rotatably connected to a bidirectional screw rod (15), and two fixed blocks (14) are threadedly connected to the bidirectional screw rod (15). Two reinforcing plates (23) are fixedly connected to the grinding machine body (1), and each reinforcing plate (23) is slidably connected to a bracket (17). Each of the fixed blocks (14) is provided with an opening (31) having a right-angle trapezoidal cross section, and the upper end of the bracket (17) is in contact with an inclined surface corresponding to the opening (31).

6. The cement clinker grinding equipment for cement preparation according to claim 5, characterized in that: A return spring (32) is sleeved on each of the brackets (17); one end of the return spring (32) is fixedly connected to the reinforcing plate (23), and the other end of the return spring (32) is fixedly connected to the bracket (17).

7. The cement clinker grinding equipment for cement preparation according to claim 5, characterized in that: A fixing rod (12) is fixedly connected to the grinding machine body (1), and each fixing block (14) is slidably connected to the fixing rod (12).

8. The cement clinker grinding equipment for cement preparation according to claim 5, characterized in that: Each of the brackets (17) is slidably connected to two limit blocks (36) with a T-shaped cross section, each of the limit blocks (36) is provided with a circular groove, the two limit blocks (36) are connected via a rotating rod (13), a plurality of pulleys (16) are fixedly connected to the rotating rod (13), and a rotating ring (37) for connecting the rotating rod (13) is rotatably provided in each of the circular grooves.

9. The cement clinker grinding equipment for cement preparation according to claim 8, characterized in that: Each of the limit blocks (36) is connected to the corresponding bracket (17) via two bolts (35), and two side surfaces of the bracket (17) are provided with two thread grooves.

10. The cement clinker grinding equipment for cement preparation according to claim 1, characterized in that: A mounting seat (25) is fixedly connected to the rotating shaft (18), and a plurality of fan blades (26) are connected to the mounting seat (25) via a plurality of screws. An arc-shaped cover plate (2) is clamped on one side of the grinding machine body (1).

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