A cement lifting and conveying device for cement production

Abstract

The present invention relates to the technical field of cement transportation, and specifically discloses a cement lifting and conveying device for cement production, including a housing. A lifting and conveying mechanism is arranged in the housing. The lifting and conveying mechanism includes rotating shafts rotatably arranged at the upper and lower ends of the inner cavity of the housing. Synchronous wheels are arranged on the rotating shafts. A synchronous belt is arranged on the two synchronous wheels. Hoppers are evenly arranged on the outer side of the synchronous belt. An air blowing mechanism is arranged on the hopper. The air blowing mechanism includes a cavity arranged inside the periphery of the hopper. For the cement lifting and conveying device for cement production, through the arranged air blowing mechanism and the linkage parts linked with the synchronous wheels, the inner wall of the hopper can be purged and cleaned when the hopper is conveyed to the upper end for discharging materials, ensuring that the cement is discharged as completely as possible, preventing the accumulated and adhered cement from occupying the internal space of the feeding port, reducing the influence on the subsequent feeding amount, and improving the overall cement lifting and conveying effect.

Description

Technical Field

[0001] The present invention relates to the technical field of cement conveying, and particularly relates to a cement lifting and conveying device for cement production. Background Technique

[0002] Cement production is a crucial link in the construction industry. The conveying efficiency and environmental protection performance of cement are directly related to the overall efficiency and sustainability of the production line. As a key device connecting different production processes, the main function of the cement lifting and conveying device is to convey cement from a low position to a high position to meet the subsequent process requirements, such as storage, batching, or packaging. On existing cement production lines, bucket elevators have become the main equipment for cement lifting operations due to their simple structure, convenient maintenance, and strong adaptability. The bucket elevator continuously lifts materials in a vertical or inclined direction through a series of buckets fixed on the traction chain or belt. Its advantages include a large conveying capacity, flexible lifting height, stable and reliable operation, and relatively low energy consumption, making it very suitable for conveying materials such as cement with strong abrasiveness and high specific gravity.

[0003] However, although bucket elevators are widely used in cement conveying, there are still some technical problems. Especially when conveying powdery materials such as cement, due to the small size and certain viscosity of cement particles, under the action of their own gravity and mutual extrusion in the static state in the bucket, cement is prone to accumulate or agglomerate at the bottom and edge parts of the bucket. This phenomenon not only reduces the effective volume of the bucket, resulting in a reduction in the actual amount of cement conveyed in each lifting cycle and a decrease in the conveying efficiency; in addition, during the material throwing process, the high-speed released cement particles will generate a large impact force, causing dust in the air to fly, which not only pollutes the working environment but also may pose a threat to the health of workers, and at the same time increases the cost and complexity of subsequent dust removal treatment.

[0004] Therefore, it is necessary to propose a cement lifting and conveying device for cement production to solve the above problems. Summary of the Invention

[0005] The main purpose of the present invention is to provide a cement lifting and conveying device for cement production, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A cement lifting and conveying device for cement production includes a housing. A lifting and conveying mechanism is arranged in the housing. The lifting and conveying mechanism includes rotating shafts rotatably arranged at the upper and lower ends of the inner cavity of the housing. Synchronous wheels are arranged on the rotating shafts. A synchronous belt is arranged on the two synchronous wheels. Buckets are evenly arranged on the outer side of the synchronous belt.

[0008] An air blowing mechanism is provided on the hopper. The air blowing mechanism includes a cavity provided inside the periphery of the hopper. A communication port communicating with the hopper is provided at the corner of the cavity. An arc-shaped diversion cover corresponding to the communication port is provided on the inner wall of the hopper. Blowing ports corresponding to the inner wall of the hopper are provided on both sides of the arc-shaped diversion cover. A pressing plate is movably connected to the end of the cavity. An inclined second guide groove is provided on the side wall of the pressing plate. A third guide rod corresponding to the pressing plate is movably connected to the side wall of the hopper. One end of the third guide rod extends to the inner side of the cavity and is provided with a guide shaft, and the guide shaft is movably and guidingly engaged with the second guide groove. A stress plate is provided at the outer end of the guide shaft, and an elastic member is provided between the stress plate and the outer wall of the hopper. A linkage member that is linked with the synchronous pulley and is used to push the stress plate to displace towards the hopper is provided at the upper end of the housing, and is configured such that when the hopper passes through the upper end of the housing, the linkage member can push the stress plate to displace.

[0009] Preferably, the bottom wall of the inner cavity of the hopper is arc-shaped;

[0010] The pressing plate is located on the side and bottom of the inner cavity of the hopper;

[0011] The guide shaft and the second guide groove are configured such that when the stress plate displaces towards the hopper, the pressing plate displaces towards the communication port and compresses the air on the inner wall of the cavity.

[0012] Preferably, a first ventilation port communicating with the cavity is provided at the upper end of the cavity, a second ventilation port communicating with the cavity is provided in the middle of the lower end of the cavity, and filter meshes for filtering cement are provided in the first ventilation port, the second ventilation port, and the blowing ports.

[0013] Preferably, the linkage member includes a movable shaft provided at the end of a rotating shaft at the upper end. The movable shaft is located outside the housing. A driving wheel is fixed on the movable shaft. A non-rotating rod in the shape of a multi-prismatic column is provided at one end of the movable shaft close to the rotating shaft. A first guide groove corresponding to and adapted to the non-rotating rod is provided at one end of the rotating shaft close to the movable shaft. The non-rotating rod is movably and guidingly engaged with the first guide groove. Annular grooves are provided on both sides of the driving wheel. Depressions are evenly provided on the inner wall of the annular groove, and a boss with a depth less than that of the depression is formed between adjacent depressions, and the boss on one side of the driving wheel corresponds to the depression on the other side;

[0014] A fixing frame is provided at the corresponding position of the side wall of the housing and the driving wheel. One end of the fixing frame away from the housing extends to the side of the driving wheel away from the housing. Fixing rods corresponding to both sides of the driving wheel are respectively provided on the side wall of the housing and one end of the fixing frame away from the housing, and one end of the fixing rod extends to the inner side of the annular groove and is movably connected to the annular groove, and a roller is rotatably provided at one end of the fixing rod located inside the annular groove. A third traction arm is rotatably provided at one end of the movable shaft close to the housing;

[0015] An extrusion disc corresponding to the hopper is arranged inside the upper end of the housing. A second guide rod extending to the outside of the housing is arranged on the side of the extrusion disc away from the hopper, and the second guide rod is movably connected to the housing. The outer end of the second guide rod is fixedly connected to the side wall of the third traction arm.

[0016] Preferably, a protective cover for covering the driving wheel is arranged on the side wall of the upper end of the housing;

[0017] A dust removal assembly is arranged outside the housing. The dust removal assembly includes a fan cover arranged outside the protective cover. A fan shaft is rotatably arranged on the side wall of the upper end of the housing. One end of the fan shaft extends to the inside of the fan cover and is provided with fan blades. A driven wheel located inside the protective cover and meshing with the driving wheel is arranged at the end of the fan shaft close to the housing. The end of the fan cover away from the protective cover is communicated with a negative pressure pipe. An air box is arranged on the side of the housing above the feeding port. The end of the negative pressure pipe away from the fan cover is communicated with the air box. A dust removal pipe is communicated with the side of the air box away from the housing. An absorption port is arranged outside the dust removal pipe.

[0018] Preferably, an adjusting mechanism for adjusting the position and orientation of the absorption port is arranged outside the housing. The adjusting mechanism includes a slider slidably connected to the side of the housing and corresponding to the dust removal pipe. One end of the dust removal pipe penetrates through the slider and is rotatably connected to the slider. A gear is arranged outside the end of the dust removal pipe close to the air box. A rack meshing with the gear is arranged on the side of the housing. An opening is arranged on the side of the air box close to the dust removal pipe. A sliding plate slidably matched with the inner wall of the air box is arranged at the end of the dust removal pipe close to the air box. The sliding plate corresponds to the opening on the side of the air box, and the width of the sliding plate is greater than the width of the opening. A first traction arm is arranged at the end of the movable shaft away from the housing. The end of the first traction arm away from the movable shaft is connected to the side wall of the slider.

[0019] Preferably, a return pipe is communicated with the end of the fan cover close to the protective cover. The end of the return pipe away from the fan cover is connected to the side of the lower end of the housing, and the return pipe is communicated with the inner cavity of the housing;

[0020] A filter screen corresponding to the return pipe is embedded in the side of the lower end of the housing.

[0021] Preferably, a ball protruding from the side wall of the extrusion disc is movably arranged on the side wall of the end of the extrusion disc close to the hopper.

[0022] Preferably, the absorption port is in a flared shape, and the absorption ports are uniformly arranged along the length direction of the dust removal pipe.

[0023] Preferably, the elastic member is a spring, and the spring is sleeved outside the third guide rod.

[0024] Compared with the prior art, the present invention provides a cement lifting and conveying device for cement production, which has the following beneficial effects:

[0025] For the cement lifting and conveying device for cement production, the air blowing mechanism and the linkage member linked with the synchronous pulley can purge and clean the inner wall of the hopper when the hopper is conveyed to the upper end for discharging materials, ensuring that the cement is discharged as completely as possible, preventing the accumulated and adhered cement from occupying the internal space of the feeding port, reducing the influence on the subsequent feeding volume, and improving the overall cement lifting and conveying effect.

[0026] For the cement lifting and conveying device for cement production, the dust removal assembly and the adjustment mechanism can absorb and treat the dust raised above the feeding port, with rotational displacement absorption, good dust removal effect, and the absorbed cement can return to the inside of the housing through the return pipe, facilitating re-entry into the hopper subsequently and reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the present invention;

[0028] Figure 2 is Figure 1 a schematic structural diagram of another perspective based on the above;

[0029] Figure 3 is a schematic structural diagram of the present invention in a disassembled state of the protective cover and the housing;

[0030] Figure 4 is Figure 3 a schematic structural diagram of another perspective based on the above;

[0031] Figure 5 is a schematic structural diagram of the present invention in a disassembled state of the air box, the driving wheel and the housing;

[0032] Figure 6 is a schematic cross-sectional structural diagram of the housing of the present invention;

[0033] Figure 7 is a schematic structural diagram of the present invention in a disassembled state of the driven wheel, the driving wheel, the extrusion disc and the fixing rod;

[0034] Figure 8 is a schematic structural diagram of the hopper of the present invention;

[0035] Figure 9 is a schematic structural diagram of the hopper in a disassembled state;

[0036] Figure 10 is a partial cross-sectional structural diagram of the driving wheel of the present invention;

[0037] Figure 11 is a cross-sectional structural diagram of the hopper of the present invention;

[0038] Figure 12 It is a schematic diagram of the overall structure of the first traction arm, bellows, and dust removal pipe of the present invention;

[0039] Figure 13 is the present invention Figure 12 A schematic diagram of the structure in a disassembled state based on this;

[0040] Figure 14 It is a schematic diagram of the structure in a disassembled state of the driving wheel corresponding to the lower end of the housing of the present invention, the second traction arm, and the fixed rod.

[0041] In the figure: 1. Housing; 2. Feed inlet; 3. Discharge outlet; 4. Protective cover; 5. Driving source; 6. Fan cover; 7. Return pipe; 8. First traction arm; 9. Dust removal pipe; 10. Bellows; 11. Negative pressure pipe; 12. Depression; 13. Second traction arm; 14. Driving wheel; 15. First guide rod; 16. Driven wheel; 17. Second guide rod; 18. Fixed frame; 19. Rotating shaft; 20. First guide groove; 21. Synchronous belt; 22. Hopper; 23. Brush plate; 24. Extrusion disc; 25. Synchronous pulley; 26. Fan shaft; 27. Fan blade; 28. Fixed rod; 29. Roller; 30. Third traction arm; 31. Movable shaft; 32. Ball; 33. Annular groove; 34. Stress plate; 35. Third guide rod; 36. Elastic member; 37. Extrusion plate; 38. Second guide groove; 39. Guide shaft; 40. Cavity; 41. First ventilation port; 42. Second ventilation port; 43. Communication port; 44. Arc-shaped deflector; 45. Blowing port; 46. Slide block; 47. Absorption port; 48. Gear; 49. Rack; 50. Slide plate. Specific embodiments

[0042] In order to make the technical means, creative features, achieved purposes, and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0043] As Figures 1-6 、 Figures 8-9 、 Figure 11As shown in the figure, a cement lifting and conveying device for cement production includes a housing 1. A lifting and conveying mechanism is arranged in the housing 1. The lifting and conveying mechanism includes a rotating shaft 19 rotatably arranged at the upper and lower ends of the inner cavity of the housing 1. Synchronous wheels 25 are arranged on the rotating shaft 19. A synchronous belt 21 is arranged on the two synchronous wheels 25. Hoppers 22 are evenly arranged on the outer side of the synchronous belt 21. A driving source 5 corresponding to the lower rotating shaft 19 is arranged on one side of the lower end of the housing 1. The driving source 5 is used to drive the rotating shaft 19 to rotate, and the rotating shaft 19 is preferably a reduction motor. A feeding port 3 is arranged on one side of the upper end of the housing 1, and a feeding port 2 is arranged at the lower end on the side opposite to the feeding port 3. In order to prevent cement from accumulating and adhering to the inner wall of the hopper 22, the bottom wall of the inner cavity of the hopper 22 is set to be arc-shaped. An air blowing mechanism is arranged on the hopper 22. The air blowing mechanism includes a cavity 40 arranged inside the periphery of the hopper 22. A communication port 43 communicating with the hopper 22 is arranged at the corner of the cavity 40. An arc-shaped diversion cover 44 corresponding to the communication port 43 is arranged on the inner wall of the hopper 22. Blowing ports 45 corresponding to the inner wall of the hopper 22 are arranged on both sides of the arc-shaped diversion cover 44. An extrusion plate 37 is movably connected to the end of the cavity 40. The extrusion plate 37 is located on the side and bottom of the inner cavity of the hopper 22. An inclined second guide groove 38 is arranged on the side wall of the extrusion plate 37. A third guide rod 35 corresponding to the extrusion plate 37 is movably connected to the side wall of the hopper 22. One end of the third guide rod 35 extends to the inside of the cavity 40 and is provided with a guide shaft 39. The guide shaft 39 is movably and guidingly matched with the second guide groove 38. A force receiving plate 34 is arranged at the outer end of the guide shaft 39. An elastic member 36 is arranged between the force receiving plate 34 and the outer wall of the hopper 22. The elastic member 36 is preferably a spring, and the spring is sleeved on the outside of the third guide rod 35. The guide shaft 39 and the second guide groove 38 are configured such that when the force receiving plate 34 displaces towards the hopper 22, the extrusion plate 37 displaces towards the communication port 43 and squeezes the air on the inner wall of the cavity 40. In order to facilitate the inlet and outlet of air when the extrusion plate 37 displaces, a first ventilation port 41 communicating with the cavity 40 is arranged at the upper end of the cavity 40. A second ventilation port 42 communicating with the cavity 40 is arranged in the middle of the lower end of the cavity 40. And in order to prevent cement from entering the cavity 40, filter meshes for filtering cement are arranged in the first ventilation port 41, the second ventilation port 42, and the blowing port 45. A linkage member is arranged at the upper end of the housing 1 and is linked with the synchronous wheel 25 and is used to push the force receiving plate 34 to displace towards the hopper 22, and is configured such that when the hopper 22 passes through the upper end of the housing 1, the linkage member can push the force receiving plate 34 to displace.

[0044] As Figures 3-7 , Figures 8-9 , Figure 10As shown, as a preferred embodiment, the linkage member includes a movable shaft 31 disposed at the end of a rotating shaft 19 at the upper end. The movable shaft 31 is located outside the housing 1. A driving wheel 14 is fixed on the movable shaft 31. A rotation-preventing rod in the shape of a multi-prismatic column is provided at one end of the movable shaft 31 close to the rotating shaft 19. A first guide groove 20 corresponding to and adapted to the rotation-preventing rod is provided at one end of the rotating shaft 19 close to the movable shaft 31. The rotation-preventing rod is movably and guidingly engaged with the first guide groove 20, which can prevent relative rotation between the movable shaft 31 and the rotating shaft 19, ensuring that the movable shaft 31 rotates following the rotating shaft 19. Annular grooves 33 are provided on both sides of the driving wheel 14. The inner wall of the annular groove 33 is evenly provided with recesses 12. A boss with a depth less than that of the recess 12 is formed between adjacent recesses 12. And the boss on one side of the driving wheel 14 corresponds to the recess 12 on the other side, such that the wall thickness formed between the inner cavities of the annular grooves 33 on both sides is the same. A fixing bracket 18 is provided at the corresponding position of the side wall of the housing 1 and the driving wheel 14. One end of the fixing bracket 18 away from the housing 1 extends to the side of the driving wheel 14 facing away from the housing 1. Fixing rods 28 corresponding to both sides of the driving wheel 14 are respectively provided on the side wall of the housing 1 and one end of the fixing bracket 18 away from the housing 1. And one end of the fixing rod 28 extends to the inside of the annular groove 33 and is movably connected with the annular groove 33. A roller 29 is rotatably provided at one end of the fixing rod 28 located inside the annular groove 33. A third traction arm 30 is rotatably provided at one end of the movable shaft 31 close to the housing 1. An extrusion disc 24 corresponding to the hopper 22 is provided inside the upper end of the housing 1. The extrusion disc 24 is used to push the force-receiving plate 34 to displace. In order to reduce friction, a ball 32 protruding from the side wall of the extrusion disc 24 is movably provided at one end side of the extrusion disc 24 close to the hopper 22. A second guide rod 17 extending to the outside of the housing 1 is provided on the side of the extrusion disc 24 away from the hopper 22. And the second guide rod 17 is movably connected with the housing 1. The outer end of the second guide rod 17 is fixedly connected with the side wall of the third traction arm 30.

[0045] Further, as Figures 1-5 、 Figure 7 、 Figures 12-13As shown in the figure, a protective cover 4 for covering the driving wheel 14 is provided on the upper side wall of the housing 1. A dust removal assembly is provided outside the housing 1. The dust removal assembly includes a blower cover 6 provided outside the protective cover 4. A blower shaft 26 is rotatably provided on the upper side wall of the housing 1. One end of the blower shaft 26 extends to the inside of the blower cover 6 and is provided with a fan blade 27. One end of the blower shaft 26 close to the housing 1 is provided with a driven wheel 16 located inside the protective cover 4 and meshing with the driving wheel 14. The diameter of the driven wheel 16 is much smaller than that of the driving wheel 14. One end of the blower cover 6 away from the protective cover 4 is communicated with a negative pressure pipe 11. A wind box 10 is provided on the side of the housing 1 above the feeding port 3. One end of the negative pressure pipe 11 away from the blower cover 6 is communicated with the wind box 10. One side of the wind box 10 away from the housing 1 is communicated with a dust removal pipe 9. An absorption port 47 is provided outside the dust removal pipe 9. The absorption port 47 is in a flared shape and is uniformly arranged along the length direction of the dust removal pipe 9. One end of the blower cover 6 close to the protective cover 4 is communicated with a return pipe 7. One end of the return pipe 7 away from the blower cover 6 is connected to the lower side surface of the housing 1, and the return pipe 7 is communicated with the inner cavity of the housing 1. A filter screen corresponding to the lower end of the return pipe 7 is embedded in the lower side surface of the housing 1. The filter screen can filter cement and discharge air.

[0046] In order to improve the comprehensiveness of dust removal, as Figures 1-2 , Figures 4-5 , Figures 12-13 shown, an adjusting mechanism for adjusting the position and orientation of the absorption port 47 is provided outside the housing 1. The adjusting mechanism includes a slider 46 slidably connected to the side surface of the housing 1 and corresponding to the dust removal pipe 9. Specifically, a linear guide rail corresponding to the slider 46 is provided on the side surface of the housing 1. The slider 46 is movably connected to the linear guide rail. One end of the dust removal pipe 9 penetrates through the slider 46 and is rotatably connected to the slider 46 through a bearing. A gear 48 is provided outside one end of the dust removal pipe 9 close to the wind box 10. A rack 49 meshing with the gear 48 is provided on the side surface of the housing 1. An opening is provided on one side of the wind box 10 close to the dust removal pipe 9. One end of the dust removal pipe 9 close to the wind box 10 is provided with a slide plate 50 slidably matched with the inner wall of the wind box 10. The slide plate 50 corresponds to the opening on the side surface of the wind box 10, and the width of the slide plate 50 is greater than the width of the opening. When the slide plate 50 reciprocates, the opening can always be closed. One end of the movable shaft 31 away from the housing 1 is provided with a first traction arm 8. One end of the first traction arm 8 away from the movable shaft 31 is connected to the side wall of the slider 46.

[0047] As Figures 2-3 , Figures 5-6 , Figure 14As shown, as an embodiment, in order to clean the filter screen on the lower side surface of the housing 1, a driving wheel 14 is also provided on one side of the lower end of the housing 1. The driving wheel 14 is also fixed on a movable shaft 31. One end of the movable shaft 31 close to the lower rotating shaft 19 is provided with an anti-rotation rod in the shape of a multi-prismatic column. On one side of the lower rotating shaft 19, a first guide groove 20 corresponding to and adapted to the anti-rotation rod is provided. The anti-rotation rod is movably and guidingly engaged with the first guide groove 20. Annular grooves 33 are provided on both sides of the driving wheel 14. The inner wall of the annular groove 33 is evenly provided with depressions 12. A boss is formed between adjacent depressions 12. And the depression 12 on one side of the driving wheel 14 corresponds to the boss on the other side. A fixing frame 18 is provided on the side wall of the lower end of the housing 1. One end of the fixing frame 18 away from the housing 1 extends to the side of the driving wheel 14 facing away from the housing 1. Fixing rods 28 corresponding to both sides of the driving wheel 14 are respectively provided on the side wall of the lower end of the housing 1 and the end of the fixing frame 18 away from the housing 1. One end of the fixing rod 28 is movably connected to the annular groove 33. A roller 29 is rotatably provided at one end of the fixing rod 28 located inside the annular groove 33. One end of the movable shaft 31 away from the rotating shaft 19 is provided with a second traction arm 13. A first guide rod 15 corresponding to the second traction arm 13 is movably connected to one side of the lower end of the housing 1. The outer end of the first guide rod 15 is fixedly connected to the side wall of the second traction arm 13. A brush plate 23 corresponding to the filter screen on the lower side surface of the housing 1 is provided at the inner end of the first guide rod 15. When the lower driving wheel 14 rotates, it also undergoes reciprocating displacement. Furthermore, the second traction arm 13 can be driven to displace. The second traction arm 13 drives the brush plate 23 to reciprocate through the first guide rod 15. The brush plate 23 can clean the filter screen on the lower side surface of the housing 1, avoiding blockage. The bottom of the inner cavity of the housing 1 is an arc-shaped depression. When cement accumulates at the bottom of the inner cavity of the housing 1, the hopper 22 can shovel up the cement again when passing by.

[0048] During use, the driving source 5 drives the synchronous pulley 25 to rotate through the rotating shaft 19. The synchronous pulley 25 drives the synchronous belt 21 to operate, and the synchronous belt 21 drives the hopper 22 to operate synchronously. Feeding is carried out on the passing hopper 22 through the feeding port 2. When the hopper 22 rotates to the upper end of the inner cavity of the housing 1, the cement will be thrown out and then fall into the discharging port 3 for discharge. When the rotating shaft 19 rotates, it will drive the driving wheel 14 to rotate through the movable shaft 31. Since the distance between the corresponding two fixed rods 28 remains unchanged, as the driving wheel 14 rotates, under the action of the recess 12 and the boss in the annular groove 33, the roller 29 will push the inner wall of the recess 12 or the boss, so that the driving wheel 14 reciprocates while rotating. The displacement of the driving wheel 14 will drive the third traction arm 30 to displace, and the third traction arm 30 will drive the extrusion disc 24 to displace through the second guide rod 17. When the extrusion disc 24 displaces inward, it will squeeze the passing force-bearing plate 34. During this period, the ball 32 can reduce friction. When the force-bearing plate 34 is squeezed, it will drive the third guide rod 35 to displace inward, compressing the elastic member 36. The third guide rod 35 will drive the guide shaft 39 to displace. Under the action of the second guide groove 38, the extrusion plate 37 displaces towards the communication port 43, and then the air at the inner corner of the cavity 40 is squeezed. The air enters the arc-shaped diversion cover 44 through the communication port 43. The air flow is diverted along the inner wall of the arc-shaped diversion cover 44 and blows along the inner wall of the hopper 22 through the blowing port 45, and the cement accumulated and attached to the inner wall of the hopper 22 can be blown off. When the extrusion disc 24 is separated from the force-bearing plate 34, the elastic member 36 resets, and then the extrusion plate 37 resets. The first air vent 41 and the second air vent 42 facilitate the air intake and exhaust when the extrusion plate 37 displaces. Moreover, filter meshes are provided in the blowing port 45, the first air vent 41, and the second air vent 42 to prevent cement from entering the cavity 40. Moreover, when the extrusion plate 37 displaces towards the filter mesh, the filter mesh will be back-blown, avoiding blockage;

[0049] In addition, in order to reduce the dust raised in the area of the discharging port 3, when the driving wheel 14 rotates, it will also drive the driven wheel 16 to rotate. The driven wheel 16 drives the fan blades 27 to rotate through the fan shaft 26. The fan blades 27 generate negative pressure in the fan housing 6, the air box 10, and the dust removal pipe 9. Then the raised dust is absorbed by the absorption port 47 and then enters the air box 10. After that, it returns to the inner cavity of the housing 1 through the negative pressure pipe 11, the fan housing 6, and the return pipe 7. The gas can pass through the filter mesh on the side of the lower end of the housing 1 and be discharged. The cement is blocked inside the housing 1. Since the movable shaft 31 reciprocates and drives the first traction arm 8 to displace synchronously, the first traction arm 8 drives the dust removal pipe 9 to reciprocate through the slider 46. While the dust removal pipe 9 reciprocates, due to the meshing of the gear 48 and the rack 49, the dust removal pipe 9 will also rotate. Therefore, the position and orientation of the absorption port 47 are continuously adjusted, increasing the dust removal effect. When the dust removal pipe 9 displaces, the sliding plate 50 displaces inside the air box 10, and the width of the sliding plate 50 is greater than the width of the side opening of the air box 10. Therefore, when the sliding plate 50 reciprocates, it can always block the opening position, preventing the cement from leaking out again.

[0050] The above has shown and described 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. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A cement lifting and conveying device for cement production, comprising a housing (1), characterized in that: The shell (1) is provided with a lifting and conveying mechanism, the lifting and conveying mechanism comprising a rotating shaft (19) rotatably arranged at the upper and lower ends of the inner cavity of the shell (1), a synchronous wheel (25) being arranged on the rotating shaft (19), a synchronous belt (21) being arranged on the two synchronous wheels (25), and a hopper (22) being evenly arranged on the outer side of the synchronous belt (21); The hopper (22) is provided with an air blowing mechanism, the air blowing mechanism comprising a cavity (40) arranged inside the periphery of the hopper (22), a connecting port (43) connected to the hopper (22) is arranged at a corner of the cavity (40), an arc-shaped flow guide cover (44) corresponding to the connecting port (43) is arranged on the inner wall of the hopper (22), both sides of the arc-shaped flow guide cover (44) are provided with purge ports (45) corresponding to the inner wall of the hopper (22), an extrusion plate (37) is movably connected to the end of the cavity (40), a second inclined guide groove (38) is arranged on the side wall of the extrusion plate (37), and a second inclined guide groove (38) is arranged on the side wall of the hopper (22). A third guide rod (35) corresponding to the extrusion plate (37), one end of the third guide rod (35) extending to the inside of the cavity (40) and provided with a guide shaft (39), and the guide shaft (39) and the second guide groove (38) are movably guided and matched, the outer end of the guide shaft (39) is provided with a force plate (34), and an elastic member (36) is provided between the force plate (34) and the outer wall of the hopper (22), the upper end of the shell (1) is provided with a linkage member that is linked with the synchronous wheel (25) and is used to push the force plate (34) to move in the direction of the hopper (22), and is configured so that when the hopper (22) passes the upper end of the shell (1), the linkage member can push the force plate (34) to move; The linkage member comprises a movable shaft (31) arranged at the end of the rotating shaft (19) at the upper end, the movable shaft (31) being located outside the housing (1), a driving wheel (14) being fixed on the movable shaft (31), a polygonal anti-rotation rod being arranged at one end of the movable shaft (31) close to the rotating shaft (19), a first guide groove (20) corresponding to and matching the anti-rotation rod being arranged at one end of the rotating shaft (19) close to the movable shaft (31), the anti-rotation rod being movably guided and matched with the first guide groove (20), annular grooves (33) being arranged on both sides of the driving wheel (14), recesses (12) being evenly arranged on the inner wall of the annular groove (33), bosses having a depth less than that of the recesses (12) being formed between adjacent recesses (12), and the bosses on one side of the driving wheel (14) corresponding to the recesses (12) on the other side; A fixing frame (18) is provided at a position corresponding to the side wall of the housing (1) and the driving wheel (14); an end of the fixing frame (18) away from the housing (1) extends to a side of the driving wheel (14) facing away from the housing (1); fixing rods (28) corresponding to two sides of the driving wheel (14) are provided on the side wall of the housing (1) and the end of the fixing frame (18) away from the housing (1); one end of the fixing rod (28) extends to the inner side of the annular groove (33) and is movably connected to the annular groove (33); a roller (29) is rotatably provided on one end of the fixing rod (28) located inside the annular groove (33); and a third traction arm (30) is rotatably provided on one end of the movable shaft (31) close to the housing (1); An extrusion plate (24) corresponding to the hopper (22) is arranged on the inner side of the upper end of the shell (1), and a second guide rod (17) extending to the outside of the shell (1) is arranged on the side of the extrusion plate (24) away from the hopper (22), and the second guide rod (17) is movably connected to the shell (1), and the outer end of the second guide rod (17) is fixedly connected to the side wall of the third traction arm (30).

2. A cement lifting and conveying device for cement production according to claim 1, characterized in that: The bottom wall of the inner cavity of the hopper (22) is arc-shaped; The extrusion plate (37) is located on the side and bottom of the inner cavity of the hopper (22); The guide shaft (39) and the second guide groove (38) are configured such that when the force-bearing plate (34) moves in the direction of the hopper (22), the extrusion plate (37) moves in the direction of the communication port (43) and squeezes the air on the inner wall of the cavity (40).

3. A cement lifting and conveying device for cement production according to claim 2, characterized in that: The upper end of the cavity (40) is provided with a first vent (41) in communication with the cavity (40), the middle portion of the lower end of the cavity (40) is provided with a second vent (42) in communication with the cavity (40), and the first vent (41), the second vent (42) and the purge port (45) are all provided with filter screens for filtering cement.

4. A cement lifting and conveying device for cement production according to claim 1, characterized in that: The upper side wall of the housing (1) is provided with a protective cover (4) for covering the driving wheel (14); A dust removal assembly is arranged on the outside of the shell (1), and the dust removal assembly includes a fan cover (6) arranged on the outside of the protective cover (4). A fan shaft (26) is rotatably arranged on the upper side wall of the shell (1). One end of the fan shaft (26) extends to the inside of the fan cover (6) and is provided with a fan blade (27). An end of the fan shaft (26) close to the shell (1) is provided with a driven wheel (16) located inside the protective cover (4) and meshing with the driving wheel (14). An end of the fan cover (6) away from the protective cover (4) is connected to a negative pressure pipe (11). A bellows (10) located above the discharge port (3) is arranged on the side of the shell (1). An end of the negative pressure pipe (11) away from the fan cover (6) is connected to the bellows (10). A side of the bellows (10) away from the shell (1) is connected to a dust removal pipe (9). An absorption port (47) is arranged outside the dust removal pipe (9).

5. A cement lifting and conveying device for cement production according to claim 4, characterized in that: An adjusting mechanism for adjusting the position and orientation of the suction port (47) is disposed on the outer side of the shell (1), the adjusting mechanism comprising a slider (46) slidably connected to the side of the shell (1) and corresponding to the dust removal pipe (9), one end of the dust removal pipe (9) passes through the slider (46) and is rotatably connected to the slider (46), a gear (48) is disposed on the outer side of one end of the dust removal pipe (9) close to the bellows (10), a rack (49) meshing with the gear (48) is disposed on the side of the shell (1), and the bellows (10) is provided with an opening on one side close to the dust removal pipe (9); the dust removal pipe (9) is provided with a slide plate (50) at one end close to the bellows (10) and slidably engaged with the inner wall of the bellows (10); the slide plate (50) corresponds to the opening on the side of the bellows (10), and the width of the slide plate (50) is greater than the width of the opening; the movable shaft (31) is provided with a first traction arm (8) at one end away from the housing (1); the first traction arm (8) is connected to the side wall of the slider (46) at one end away from the movable shaft (31).

6. A cement lifting and conveying device for cement production according to claim 4, characterized in that: The end of the fan cover (6) close to the protective cover (4) is connected to a return pipe (7), the end of the return pipe (7) away from the fan cover (6) is connected to the lower end side of the shell (1), and the return pipe (7) is connected to the inner cavity of the shell (1); A filter screen corresponding to the return pipe (7) is embedded in the side surface of the lower end of the shell (1).

7. The cement lifting and conveying device for cement production according to claim 1, characterized in that: A ball (32) protruding from the side wall of the extrusion disc (24) is movably provided on a side wall of one end of the extrusion disc (24) close to the hopper (22).

8. The cement lifting and conveying device for cement production according to claim 4, characterized in that: The absorption opening (47) is in a trumpet-shaped shape, and the absorption opening (47) is evenly arranged along the length direction of the dust removal pipe (9).

9. The cement lifting and conveying device for cement production according to claim 1, characterized in that: The elastic member (36) is a spring, and the spring is sleeved outside the third guide rod (35).

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