A limestone high efficiency crushing equipment

Abstract

The invention discloses a limestone efficient crushing device, which belongs to the technical field of limestone production. It comprises a bag dust collector and a crushing box. The crushing box comprises a cover shell, a feed port is symmetrically arranged on the top of the cover shell, a primary crushing device is arranged below the feed port, the primary crushing device comprises two pairs of first bombardment plates, a material holding plate is movably arranged below the first bombardment plate, after the limestone entering from the feed port is bombarded and crushed by the first bombardment plate, the material holding plate moves to one side to cooperate with the first bombardment plate on one side to scrape the material and drop it into the first screen below, the first screen is inclined, coarser materials cannot pass through the first screen and roll into the first feeding channel, and finer materials can pass through the first screen and fall into the second feeding channel; a secondary crushing device is arranged in the second feeding channel to crush the finer materials for the second time and then drop them into the ultimate crushing device; an exhaust pipe is arranged on the side wall of the cover shell to communicate with the bag dust collector.

Description

Technical Field

[0001] The invention relates to the technical field of limestone production, in particular to a high-efficiency limestone crushing device. Background Art

[0002] Limestone is also called limestone for short. It is a carbonate rock with calcite as the main component. Sometimes it contains dolomite, clay minerals and detrital minerals. It is generally not very hard and is classified as a sedimentary rock according to its genesis. Limestone is the main raw material for burning lime and cement. In industrial production, limestone needs to be crushed to facilitate use in the next process. The crushing device currently used includes using a hammer to hammer limestone to perform the crushing operation.

[0003] However, during long-term use, we found that the existing limestone crushing equipment has many outstanding problems that need to be improved, which seriously affects the production efficiency. For example, rework often occurs because it is difficult to completely crush the material by hammering, and if repeated hammering is required, there is actually a problem of repeated operation but no obvious effect, which seriously affects the further improvement of production efficiency; in addition, the existing device is prone to some coarser materials becoming "slippery fish" and requiring further screening, which creates an additional workload and requires workers to operate, increasing the work intensity; in addition, a large amount of dust pollutants will be generated in the process of ore crushing, which will not only affect the health of the operator, but also pollute the surrounding environment. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a high-efficiency limestone crushing equipment. By changing the existing hammering method for crushing, the bombardment plate is used for bombardment crushing, which can effectively increase the contact area and avoid the leakage of materials at the edge in principle. At the same time, a multi-stage crushing setting is adopted, and different crushing devices are used for refinement operation. Finally, the final crushing operation is carried out by the grinding plate and the crushing roller, so that the crushing is completed in one time, avoiding the occurrence of rework and solving the problem of "slipping through the net". The primary material and fine material after primary crushing are separated in time and then crushed by different secondary crushing devices, which embodies the refined design concept of "precision crushing" and can effectively improve the production efficiency and crushing effect.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a high-efficiency limestone crushing equipment, including a bag dust collector and a crushing box, the crushing box including a cover shell, a feed port is symmetrically arranged on the top of the cover shell, a primary crushing device is arranged below the feed port, the primary crushing device includes two pairs of first bombardment plates, the first bombardment plates are respectively connected to the two-way cylinder arranged in the middle and the tail end of the piston rod of the first cylinder symmetrically arranged on both sides, a material holding plate is movably arranged below the first bombardment plate, and the limestone entering from the feed port is bombarded and crushed by the first bombardment plate, and then the material holding plate moves to one side to cooperate with the first bombardment plate on one side to scrape the material and drop it into the first screen below, the first screen is inclined, and the coarser material cannot pass through the first screen and roll into the first feeder The channel is provided with a second bombardment device, and the coarser materials can pass through the first screen and fall into the second feeding channel; the first feeding channel is provided with a second-level bombardment device to carry out a second bombardment and crushing of the coarser materials so that the materials fall into the final crushing device, and the second feeding channel is provided with a second-level crushing device to carry out a second crushing of the finer materials so that the materials also fall into the final crushing device; the final crushing device comprises a grinding plate, the left and right ends of which are respectively connected to the third cylinder and the fourth cylinder, an intermediate fulcrum is provided at the bottom of the grinding plate, and a grinding roller is movably provided on the grinding plate. When the materials crushed by the grinding roller need to be discharged, the third cylinder and the fourth cylinder are raised and lowered one by one to tilt the grinding plate and discharge the materials into the receiving box; an exhaust pipe is provided on the side wall of the cover shell to communicate with the bag dust collector.

[0006] Furthermore, an exhaust fan is provided on the exhaust pipe, and a water tank is provided below the bag filter to dissolve the absorbed impurities and dust in water to form a mixture for recycling.

[0007] Furthermore, one end of the material holding plate is connected to the piston rod of the second cylinder, and there are two second cylinders with a spacing therebetween. When the second cylinder pushes the material holding plate to one side, it cooperates with the first bombardment plate to scrape the material on the material holding plate; the second cylinder is arranged on the first support plate, one end of the first support plate is connected to the first screen, and the first support plate is connected to the inner wall of the cover shell.

[0008] Furthermore, the first material discharge channel is composed of first partitions on the left and right sides, and the two ends of the first partitions are connected to the inner wall of the cover shell; the secondary bombardment device in the first material discharge channel includes a pair of second bombardment plates, and the second bombardment plates are connected to the tail ends of the piston rods of the fifth cylinders on the left and right sides, and the fifth cylinder is arranged on the second support plate, and the two ends of the second support plate are connected to the inner wall of the cover shell; a second screen is arranged under the second bombardment plate, and the second screen is denser than the first screen, and the material passing through the second screen falls onto the grinding plate.

[0009] Furthermore, the second discharge channel is arranged symmetrically on both sides, and is composed of a second partition and an inner wall of the cover shell. The finer material falling from the first screen falls onto the first discharge plate, which is inclined and has a second partition connected to its lower end; the secondary crushing device in the second discharge channel includes a pair of rollers, which are supported and installed by support rods, which are respectively connected to the second partition and the inner wall of the cover shell; the material crushed by the rollers falls onto the second discharge plate, which is inclined and allows the material to fall onto the grinding plate.

[0010] Furthermore, the first connecting columns at both ends of the crushing roller are connected to rolling bearings, the rolling bearings are arranged on the top end of the connecting rod, and the lower end of the connecting rod is connected to the sliding device.

[0011] Furthermore, the sliding device includes a slider, which is inserted into the screw rod, one end of the screw rod is connected to the output shaft of the motor, and the other end is connected to the bearing seat and connected to the bearing, and the slider is connected to the connecting rod.

[0012] Furthermore, the slider is connected to the connecting rod via a spring, and the sliders on both sides are connected via a connecting rod.

[0013] Furthermore, collecting grooves are provided on the left and right sides of the rolling plate, and a notch is provided at one end of the collecting groove to facilitate unloading of materials when the rolling plate is tilted.

[0014] Furthermore, a cylinder is provided at the bottom of the rolling plate as a middle fulcrum of the rolling plate, and both ends of the cylinder are connected to the inner wall panel of the cover shell through a second connecting column.

[0015] Beneficial effects of the present invention:

[0016] 1. By changing the existing hammer crushing method and using a bombardment plate for bombardment crushing, the contact surface area of ​​the crushing can be greatly increased, and in principle, the problem of too much edge material being unable to be effectively crushed can be effectively avoided.

[0017] 2. After primary crushing, the coarser materials and finer materials are separated in time through the first screen, so that the coarser materials and finer materials are crushed by different crushing devices, achieving more accurate crushing, reflecting the refined operation concept, effectively improving the overall crushing production efficiency, and avoiding excessive repeated operations or even rework.

[0018] 3. The materials are finally and completely crushed by the grinding plate and the crushing roller to solve the problem of "slipping through the net" and ensure that the crushing operation is completed in one go. There is no need for excessive manual participation in the whole process, which reduces the work intensity of workers and greatly improves the overall work efficiency. At the same time, a spring is connected between the crushing roller and the slider, which not only provides a strong elastic force to pull the crushing roller down but also rolls it left and right for crushing. If you need to get materials with different crushing degrees in the end, you can replace springs of different strengths to meet the needs of different working conditions.

[0019] 4. In order to ensure the respiratory health of on-site workers and protect the surrounding environment, a bag dust collector is used in conjunction with an exhaust fan for dust removal, and a water tank is installed under the bag dust collector to dissolve and absorb dust and other impurities, thereby obtaining a recyclable mixture, which is in line with the concept of circular economy and green production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 Schematic diagram of the arrangement of the exhaust pipe of the present invention.

[0022] Figure 3 It is a schematic diagram of the second material discharge channel of the present invention.

[0023] Figure 4 It is a schematic diagram of the installation of the material holding plate of the present invention.

[0024] Figure 5 It is a schematic diagram of the final crushing device of the present invention.

[0025] Figure 6 It is a schematic diagram of the installation of the crushing roller of the present invention.

[0026] Figure 7 It is a schematic diagram of the installation of the slider of the present invention.

[0027] The text labels in the figure are as follows: 1. water tank; 2. bag filter; 3. exhaust fan; 4. cover; 5. feed port; 6. first bombardment plate; 7. two-way cylinder; 8. first bracket; 9. material holding plate; 10. second bracket; 11. first cylinder; 12. second cylinder; 13. first support plate; 14. first screen; 15. first unloading plate; 16. rolling roller; 17. support rod; 18. second unloading channel; 19. second unloading plate; 20. rolling plate; 21. material receiving box; 22. bearing seat; 23. first Three cylinders; 24. Spring; 25. Slider; 26. Screw rod; 27. Motor; 28. Exhaust pipe; 29. ​​Crushing roller; 30. Connecting rod; 31. Cylinder; 32. Fourth cylinder; 33. Collecting trough; 34. Front and rear panels; 35. Connecting rod; 36. First connecting column; 37. Second connecting column; 38. Left and right panels; 39. First unloading channel; 40. Fifth cylinder; 41. First partition; 42. Second bombardment plate; 43. Second screen; 44. Second partition; 45. Second support plate; 46. Notch. DETAILED DESCRIPTION

[0028] The present invention is further explained below by way of examples.

[0029] A limestone efficient crushing device comprises a bag dust collector 2 and a crushing box, wherein the crushing box comprises a cover shell 4, a feed port 5 is symmetrically arranged on the top of the cover shell 4, a primary crushing device is arranged below the feed port 5, and the primary crushing device comprises two pairs of first bombardment plates 6, wherein the first bombardment plates 6 are respectively connected to the piston rod tail ends of the bidirectional cylinder 7 arranged in the middle and the first cylinder 11 symmetrically arranged on both sides, and a material holding plate 9 is movably arranged below the first bombardment plate 6. After the limestone entering from the feed port 5 is bombarded and crushed by the first bombardment plate 6, the material holding plate 9 moves to one side to cooperate with the first bombardment plate 6 on one side to scrape the material and drop it into the first screen 14 below. The first screen 14 is arranged obliquely, and coarser materials cannot pass through the first screen 14 and roll into the first unloading channel 39, while finer materials can pass through the first screen 1 4 and falls into the second material discharge channel 18; the first material discharge channel 39 is provided with a secondary bombardment device to perform secondary bombardment and crushing on the coarser materials and then fall into the final crushing device, and the second material discharge channel 18 is provided with a secondary crushing device to perform secondary crushing on the finer materials and then also fall into the final crushing device; the final crushing device includes a grinding plate 20, the left and right ends of which are respectively connected to the third cylinder 23 and the fourth cylinder 32, an intermediate fulcrum is provided at the bottom of the grinding plate 20, and a crushing roller 29 is movably provided on the grinding plate 20. When the materials crushed by the crushing roller 29 need to be discharged, the third cylinder 23 and the fourth cylinder 32 are raised and lowered one by one to make the grinding plate 20 tilt and discharge the materials into the receiving box 21; the side wall of the cover shell 4 is provided with an exhaust pipe 28 connected to the bag dust collector 2.

[0030] Preferably, please refer to Figure 1 As shown, the exhaust pipe 28 is provided with an exhaust fan 3, and the bag filter 2 is connected to a water tank 1 below to dissolve the absorbed impurities and dust in water to form a mixture for recycling.

[0031] Preferably, please refer to Figure 1 and Figure 4 As shown, one end of the material holding plate 9 is connected to the piston rod of the second cylinder 12. There are two second cylinders 12 and they are set at a distance. When the second cylinder 12 pushes the material holding plate 9 to one side, it cooperates with the first bombardment plate 6 to scrape the material on the material holding plate 9; the second cylinder 12 is set on the first support plate 13, one end of the first support plate 13 is connected to the first screen 14, and the first support plate 13 is connected to the inner wall of the cover shell 4.

[0032] Preferably, please refer to Figure 1 and Figure 3 As shown, the first material discharge channel 39 is composed of first partitions 41 on the left and right sides, and the two ends of the first partitions 41 are connected to the inner wall of the cover shell 4; the secondary bombardment device in the first material discharge channel 39 includes a pair of second bombardment plates 42, and the second bombardment plates 42 are connected to the tail ends of the piston rods of the fifth cylinders 40 on the left and right sides. The fifth cylinder 40 is arranged on the second support plate 45, and the two ends of the second support plate 45 are connected to the inner wall of the cover shell 4; a second screen 43 is arranged below the second bombardment plate 42, and the second screen 43 is denser than the first screen 14, and the material passing through the second screen 43 falls onto the grinding plate 20.

[0033] Preferably, please refer to Figure 1 As shown, the second discharge channel 18 is arranged symmetrically on both sides, and is composed of a second partition 44 and the inner wall of the cover shell 4. The finer material falling from the first screen 14 falls onto the first discharge plate 15, which is inclined and has the second partition 44 connected to its lower end; the secondary crushing device in the second discharge channel 18 includes a pair of grinding rollers 16, which are supported and installed by support rods 17, and the support rods 17 are respectively connected to the second partition 44 and the inner wall of the cover shell 4; the material crushed by the grinding rollers 16 falls onto the second discharge plate 19, which is inclined and allows the material to fall onto the grinding plate 20.

[0034] Preferably, please refer to Figure 6 As shown, the first connecting columns 36 at both ends of the crushing roller 29 are connected to rolling bearings, the rolling bearings are arranged on the top of the connecting rod 30, and the lower end of the connecting rod 30 is connected to the sliding device.

[0035] Preferably, please refer to Figure 5As shown, the sliding device includes a slider 25, which is inserted into a screw rod 26. One end of the screw rod 26 is connected to the output shaft of the motor 27, and the other end is connected to the bearing seat 22 and connected to the bearing. The slider 25 is connected to a connecting rod 30.

[0036] Preferably, please refer to Figure 5 and Figure 7 As shown, the slider 25 is connected to the connecting rod 30 via a spring 24 , and the sliders 25 on both sides are connected via a connecting rod 35 .

[0037] Preferably, please refer to Figure 5 and Figure 6 As shown, the rolling plate 20 is provided with collecting grooves 33 on both sides thereof, and one end of the collecting groove 33 is provided with a notch 46 for unloading materials when the rolling plate 20 is tilted.

[0038] Preferably, please refer to Figure 1 and Figure 7 As shown, a cylinder 31 is provided at the bottom of the rolling plate 20 as the middle fulcrum of the rolling plate 20 , and both ends of the cylinder 31 are connected to the inner wall panel of the cover shell 4 through a second connecting column 37 .

[0039] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0040] The principles and implementation methods of the present invention are explained herein. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A limestone high-efficiency crushing device, comprising a bag dust collector (2) and a crushing box, characterized in that: The crushing box comprises a housing (4), a feed port (5) is symmetrically arranged on the top of the housing (4), a primary crushing device is arranged below the feed port (5), and the primary crushing device comprises two pairs of first bombardment plates (6), the first bombardment plates (6) are respectively connected to the piston rod tail ends of the bidirectional cylinder (7) arranged in the middle and the first cylinder (11) symmetrically arranged on both sides, and a material holding plate (9) is movably arranged below the first bombardment plate (6). After the limestone entering from the feed port (5) is bombarded and crushed by the first bombardment plate (6), the material holding plate (9) moves to one side to cooperate with the first bombardment plate (6) on one side to scrape the material and drop it into the first screen (14) below. The first screen (14) is arranged to be inclined, so that coarser materials cannot pass through the first screen (14) and roll into the first material discharge channel (39), while finer materials can pass through the first screen (14) and fall into the second material discharge channel (1 8); a secondary bombardment device is arranged in the first material discharge channel (39) to perform secondary bombardment and crush the coarser materials and then drop them into the final crushing device; a secondary crushing device is arranged in the second material discharge channel (18) to perform secondary crushing on the finer materials and then also drop them into the final crushing device; the final crushing device comprises a grinding plate (20); the left and right ends of the grinding plate (20) are respectively connected to the third cylinder (23) and the fourth cylinder (32); an intermediate fulcrum is arranged at the bottom of the grinding plate (20); a grinding roller (29) is movably arranged on the grinding plate (20); when the materials crushed by the grinding roller (29) need to be discharged, the third cylinder (23) and the fourth cylinder (32) are raised and lowered one by one to tilt the grinding plate (20) and discharge the materials into the receiving box (21); an exhaust pipe (28) is arranged on the side wall of the cover shell (4) and is connected to the bag dust collector (2); One end of the material holding plate (9) is connected to the piston rod of the second cylinder (12). The number of the second cylinders (12) is two and the spacing is set. When the second cylinder (12) pushes the material holding plate (9) to one side, it cooperates with the first bombardment plate (6) to scrape the material on the material holding plate (9). The second cylinder (12) is arranged on the first support plate (13). One end of the first support plate (13) is connected to the first screen (14). The first support plate (13) is connected to the inner wall of the cover shell (4). The first material discharge channel (39) is composed of first baffles (41) on the left and right sides, and the two ends of the first baffles (41) are connected to the inner wall of the housing (4); the secondary bombardment device in the first material discharge channel (39) includes a pair of second bombardment plates (42), and the second bombardment plates (42) are connected to the tail ends of the piston rods of the fifth cylinders (40) on the left and right sides, and the fifth cylinder (40) is arranged on the second support plate (45), and the two ends of the second support plate (45) are connected to the inner wall of the housing (4); a second screen (43) is arranged below the second bombardment plate (42), and the second screen (43) is denser than the first screen (14), and the material passing through the second screen (43) falls onto the rolling plate (20); The second material discharge channel (18) is arranged symmetrically on both sides and is composed of a second partition (44) and an inner wall of the housing (4). The finer material falling from the first screen (14) falls onto the first material discharge plate (15). The first material discharge plate (15) is arranged obliquely and the lower end of the first material discharge plate (15) is connected to the second partition (44). The secondary crushing device in the second material discharge channel (18) includes a pair of rollers (16). The rollers (16) are supported and installed by support rods (17). The support rods (17) are respectively connected to the second partition (44) and the inner wall of the housing (4). The material crushed by the rollers (16) falls onto the second material discharge plate (19). The second material discharge plate (19) is arranged obliquely so that the material falls onto the grinding plate (20).

2. A limestone efficient crushing equipment according to claim 1, characterized in that: The exhaust pipe (28) is provided with an exhaust fan (3), and the bag filter (2) is connected to a water tank (1) below to dissolve the absorbed impurities and dust in water to form a mixture for recycling.

3. The limestone efficient crushing equipment according to claim 1 is characterized in that: The first connecting columns (36) at both ends of the crushing roller (29) are connected to rolling bearings, the rolling bearings are arranged on the top ends of the connecting rods (30), and the lower ends of the connecting rods (30) are connected to the sliding device.

4. A limestone efficient crushing equipment according to claim 3, characterized in that: The sliding device comprises a slider (25), the slider (25) being inserted into a screw rod (26), one end of the screw rod (26) being connected to an output shaft of a motor (27), and the other end of the screw rod (26) being connected to a bearing seat (22) and a bearing, and the slider (25) being connected to a connecting rod (30).

5. The limestone efficient crushing equipment according to claim 4, characterized in that: The slider (25) and the connecting rod (30) are connected via a spring (24), and the sliders (25) on both sides are connected via a connecting rod (35).

6. The limestone efficient crushing equipment according to claim 1, characterized in that: The rolling plate (20) is provided with collecting grooves (33) on both left and right sides, and a notch (46) is provided at one end of the collecting groove (33) to facilitate unloading of materials when the rolling plate (20) is tilted.

7. The limestone efficient crushing equipment according to claim 1, characterized in that: A cylinder (31) is provided at the bottom of the rolling plate (20) as a middle fulcrum of the rolling plate (20), and both ends of the cylinder (31) are connected to the inner wall panel of the cover shell (4) via second connecting columns (37).

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