Limestone raw material particle screening device

Abstract

The utility model relates to the technical field of cement manufacturing, and discloses a limestone raw material particle screening device which comprises a screening box and a vibration motor, the top of the screening box is communicated with a feeding box, the middle of the inner side of the screening box is fixedly connected with a screening plate, and the right side of the interior of the screening box is fixedly connected with a fixing plate. And air cylinders are fixedly connected to the front side and the rear side of the fixing plate correspondingly, connecting blocks are fixedly connected to one ends of the two air cylinders correspondingly, rotating plates are rotationally connected to the left sides of the two connecting blocks correspondingly, and rotating shafts are rotationally connected to the middles of the two rotating plates correspondingly. According to the screening device, the air cylinder drives the second mounting frame to slide leftwards on the screening plate, the rack is matched with the third gear to drive the dredging cutting piece to remove blocking particles in the screening groove, and the adjusting screw rod is rotated outwards to enable the first smashing roller and the first gear to be stably separated from the second smashing roller and the second gear; and the clamping position on the crushing device can be conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of cement manufacturing, in particular to a limestone raw material particle screening device. Background Art

[0002] Limestone is a common natural ore, and its main component is calcium carbonate. Limestone is a key raw material for cement production. During the cement manufacturing process, limestone is mixed with other raw materials such as clay and then calcined at high temperature to form clinker. The clinker is then ground and an appropriate amount of gypsum is added to make the cement commonly used in our daily life.

[0003] In the production process, the limestone raw material needs to undergo crushing treatment in a screening device to facilitate further processing in the later stage, aiming to refine it into powder. For different production requirements, the entire process can implement precise particle size adjustment to ensure that the produced powder particles meet the established quality standards.

[0004] Existing manufacturing plants use limestone crushers to crush limestone and then vibrate it through multiple layers of screening plates to achieve fine screening. However, due to the different particle sizes of the limestone raw material, it is easy for large particles and small particles to block the screening plates, resulting in a reduction in screening efficiency and a time-consuming and laborious manual cleaning situation. Therefore, a limestone raw material particle screening device is proposed to solve the above problems. Content of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a limestone raw material particle screening device, aiming to improve the problems in the prior art that the particle sizes of limestone raw materials are different, which are easy to cause blockage during screening, and manual cleaning is time-consuming and laborious.

[0006] To achieve the above object, the utility model adopts the following technical solutions: a limestone raw material particle screening device, including a screening box and a vibration motor. The top of the screening box is communicated with a feeding box. The middle part inside the screening box is fixedly connected with a screening plate. The right side inside the screening box is fixedly connected with a fixing plate. Both the front and rear sides of the fixing plate are fixedly connected with cylinders. One end of each of the two cylinders is fixedly connected with a connecting block. The left sides of the two connecting blocks are rotatably connected with rotating plates. The middle parts of the two rotating plates are rotatably connected with rotating shafts. The left sides of the two rotating plates are rotatably connected with mounting blocks. The left sides of the two mounting blocks are slidably connected with a second mounting frame. The inside of the second mounting frame is rotatably connected with a rotating rod. A plurality of dredging slices are fixedly connected to the outer wall of the rotating rod. The front and rear ends of the rotating rod penetrate through the inner wall of the second mounting frame and are fixedly connected with a third gear. The front and rear sides of the top of the screening plate are fixedly connected with racks. The outer walls of the two third gears are meshed and connected to the top of the racks. The inside of the feeding box is provided with an adjusting mechanism, and the adjusting mechanism can be used to maintain and dredge the crushing device.

[0007] As a further description of the above technical solution:

[0008] The adjusting mechanism includes an adjusting screw. The right end of the adjusting screw is threadedly connected to the left side of the feeding box. The right end of the adjusting screw penetrates through the left side of the feeding box and is rotatably connected with a first mounting frame. The left side of the feeding box is slidably connected with a limiting rod. The right ends of the two limiting rods penetrate through the left side of the feeding box and are fixedly connected to the left side of the first mounting frame. The front side of the feeding box is fixedly connected with a servo motor. The output end of the servo motor penetrates through the front side of the feeding box and is fixedly connected with a second crushing roller. The front and rear ends of the second crushing roller are fixedly connected with a second gear. The inside of the first mounting frame is rotatably connected with a first crushing roller. The front and rear ends of the first crushing roller penetrate through the inside of the first mounting frame and are fixedly connected with a first gear. The outer wall of the first gear is meshed and connected to the outer wall of the second gear.

[0009] As a further description of the above technical solution:

[0010] The front side of the screening box is fixedly connected with a switch box. The right side inside the screening box is fixedly connected with a guiding plate.

[0011] As a further description of the above technical solution:

[0012] The left side of the screening box is fixedly connected with a support rod. The top end of the support rod is fixedly connected with a placing plate.

[0013] As a further description of the above technical solution:

[0014] The top of the placing plate is slidably connected with a first collection box. The left side of the screening box is provided with a discharge port.

[0015] As a further description of the above technical solution:

[0016] A second collection box is slidably connected to the front side of the screening box, and a handle is fixedly connected to the front side of the second collection box.

[0017] As a further description of the above technical solution:

[0018] A plurality of support columns are fixedly connected to both the left and right sides of the screening box, and rubber pads are fixedly connected to the bottom ends of the plurality of support columns.

[0019] As a further description of the above technical solution:

[0020] An observation window is fixedly connected to the front side of the screening box, and a plurality of bolts are threadedly connected to the front side of the observation window.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the limestone raw material particles after being broken by the feeding box fall on the screening plate, and are screened by cooperating with the vibration motor. The air cylinder drives the rotating plate to move inward for cross-merging, so that the second mounting frame slides to the left on the screening plate. Through the mutual meshing of the rack and the third gear, the rotating rod drives the dredging slicer to remove the blocked particles in the screening groove. In this way, not only the reduction of screening efficiency caused by particle blockage is avoided, but also the work burden of people is reduced.

[0023] 2. In the utility model, the servo motor drives the first crushing roller to rotate, and the first crushing roller and the second crushing roller are driven by the first gear and the second gear to crush the limestone raw material particles. When the crushing structure is stuck and damaged, the adjusting screw rod is rotated outward to drive the first mounting frame to slide to the left, so that the first crushing roller and the first gear are smoothly separated from the second crushing roller and the second gear, which is convenient for cleaning the clamping position on the crushing device and improving the service life of the crushing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the limestone raw material particle screening device proposed by the utility model;

[0025] Figure 2 is a front view of the limestone raw material particle screening device proposed by the utility model;

[0026] Figure 3 is a partial structural split view of the limestone raw material particle screening device proposed by the utility model;

[0027] Figure 4 is a sectional view of the limestone raw material particle screening device proposed by the utility model;

[0028] Figure 5 This is an exploded view of a partial structure of the limestone raw material particle screening device proposed by the present utility model.

[0029] Legend:

[0030] 1. Screening box; 2. Adjusting mechanism; 201. Adjusting screw; 202. First mounting frame; 203. Limiting rod; 204. First crushing roller; 205. First gear; 206. Second gear; 207. Second crushing roller; 208. Servo motor; 3. Feeding box; 4. Screening plate; 5. Fixed plate; 6. Cylinder; 7. Connecting block; 8. Rotating plate; 9. Rotating shaft; 10. Mounting block; 11. Second mounting frame; 12. Rotating rod; 13. Unclogging slice; 14. Third gear; 15. Rack; 16. Guide plate; 17. Vibration motor; 18. Discharge port; 19. First collection box; 20. Placing plate; 21. Support rod; 22. Support column; 23. Rubber pad; 24. Second collection box; 25. Handle; 26. Switch box; 27. Observation window; 28. Bolt. Specific implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figure 1 、 Figure 3 and Figure 4, an embodiment provided by the present utility model: a limestone raw material particle screening device, comprising a screening box 1 and a vibration motor 17. A feed box 3 is communicated with the top of the screening box 1. A screening plate 4 is fixedly connected to the middle part inside the screening box 1. A fixing plate 5 is fixedly connected to the right side inside the screening box 1. Cylinders 6 are fixedly connected to both the front and rear sides of the fixing plate 5. Connecting blocks 7 are fixedly connected to one ends of the two cylinders 6. Rotating plates 8 are rotatably connected to the left sides of the two connecting blocks 7. Rotating shafts 9 are rotatably connected to the middle parts of the two rotating plates 8. Mounting blocks 10 are rotatably connected to the left sides of the two rotating plates 8. Second mounting frames 11 are slidably connected to the left sides of the two mounting blocks 10. A rotating rod 12 is rotatably connected to the inside of the second mounting frame 11. A plurality of dredging slices 13 are fixedly connected to the outer wall of the rotating rod 12. The front and rear ends of the rotating rod 12 penetrate through the inner wall of the second mounting frame 11 and are fixedly connected with third gears 14. Rack bars 15 are fixedly connected to both the front and rear sides of the top of the screening plate 4. The outer walls of the two third gears 14 are meshed with the top of the rack bars 15. An adjusting mechanism 2 is arranged inside the feed box 3. The adjusting mechanism 2 can be used to maintain and dredge the crushing device. The top end of a support rod 21 is fixedly connected with a placing plate 20. A first collecting box 19 is slidably connected to the top of the placing plate 20. A discharge port 18 is formed in the left side of the screening box 1. A second collecting box 24 is slidably connected to the front side of the screening box 1. A handle 25 is fixedly connected to the front side of the second collecting box 24. A guiding plate 16 is fixedly connected to the right side inside the screening box 1;

[0033] Specifically, a vibration motor 17 is installed on the right side of the screening box 1, and the model of the vibration motor 17 is YZO-2.5-4; a feed box 3 is connected to the top right side of the screening box 1, and limestone raw material particles are placed through the feed box 3. At the same time, the crushed limestone raw material particles will be guided by the guide plate 16 at the bottom of the feed box 3 and fall on the screening plate 4. The screening plate 4 cooperates with the vibration motor 17 to screen limestone raw materials of different particle sizes. A fixing plate 5 is fixed on the right side inside the screening box 1, and the cylinder 6 is installed and fixed on both the front and rear sides of the fixing plate 5. The model of the cylinder 6 is SMC CJ2; one end of the cylinder 6 is fixed to the connecting block 7, and the connecting block 7 and the mounting block 10 are rotatably installed through the rotating plate 8. The rotating plates 8 cross each other and are connected and installed through the rotating shaft 9; when the cylinder 6 is started to drive the connecting block 7 to slide inward, the rotating plates 8 cross and merge inward, and at the same time drive the mounting frame two 11 on the mounting block 10 to slide to the left; a rotating rod 12 is installed inside the mounting frame two 11, and a plurality of dredging slices 13 corresponding to the screening grooves are installed on the outer wall of the rotating rod 12. In order to ensure that the dredging slices 13 can rotate by themselves, the gears three 14 at both ends of the rotating rod 12 are engaged with the rack 15. When the mounting frame two 11 slides to the left, the rack 15 cooperates with the gears three 14 to drive the dredging slices 13 to cut and remove the blocked particles in the screening grooves; a discharge port 18 is opened on the left side of the screening box 1. After screening through the discharge port 18, the particles with still larger sizes will fall into the collection box one 19, and at the same time the screened particles will directly fall into the collection box two 24, which is convenient for later taking and using.

[0034] Referring to Figure 1 , Figure 3 and Figure 5 , the adjusting mechanism 2 includes an adjusting screw rod 201. The right end of the adjusting screw rod 201 is threadedly connected to the left side of the feed box 3. The right end of the adjusting screw rod 201 penetrates the left side of the feed box 3 and is rotatably connected to a mounting frame one 202. The left side of the feed box 3 is slidably connected with a limiting rod 203. The right ends of the two limiting rods 203 penetrate the left side of the feed box 3 and are fixedly connected to the left side of the mounting frame one 202. The front side of the feed box 3 is fixedly connected with a servo motor 208. The output end of the servo motor 208 penetrates the front side of the feed box 3 and is fixedly connected to a crushing roller two 207. The front and rear ends of the crushing roller two 207 are fixedly connected with gears two 206. A crushing roller one 204 is rotatably connected inside the mounting frame one 202. The front and rear ends of the crushing roller one 204 penetrate the inside of the mounting frame one 202 and are fixedly connected with gears one 205. The outer wall of the gear one 205 is meshed with the outer wall of the gear two 206;

[0035] Specifically, a crushing structure is provided inside the feeding box 3. The first crushing roller 204 is fixedly connected through a servo motor 208 on the front side of the feeding box 3. The model of the servo motor 208 is 28BYJ-48. By starting the servo motor 208, the first crushing roller 207 is driven to rotate. The second crushing roller 207 is installed in the first mounting frame 202. At both ends of the second crushing roller 207, a first gear 205 is fixedly installed. At the front and rear ends of the second crushing roller 207, a second gear 206 is fixedly installed. The first gear 205 meshes with the second gear 206. When they come into contact with each other, the effect of synchronous rotation is achieved. The limestone raw material particles are crushed by the first crushing roller 204 and the second crushing roller 207. However, the crushing structure is prone to jamming and wear after long-term use. An adjusting screw 201 is installed on the left side of the feeding box 3. The adjusting screw 201 is connected to the first mounting frame 202. At the same time, a limiting rod 203 is installed on the left side of the first mounting frame 202. The limiting rod 203 is slidably installed inside the left side of the feeding box 3. The limiting rod 203 is used to maintain the stability of the first mounting frame 202. By rotating the adjusting screw 201 outward, the first mounting frame 202 and the first crushing roller 204 can be driven to disengage from the second crushing roller 206, which makes it more convenient to clean the clamping position on the crushing device and improves the service life of the crushing device.

[0036] Refer to Figure 1 , Figure 2 and Figure 4 , a switch box 26 is fixedly connected to the front side of the screening box 1. A support rod 21 is fixedly connected to the left side of the screening box 1. A plurality of support columns 22 are fixedly connected to both the left and right sides of the screening box 1. Rubber pads 23 are fixedly connected to the bottoms of the plurality of support columns 22. An observation window 27 is fixedly connected to the front side of the screening box 1. A plurality of bolts 28 are threadedly connected to the front side of the observation window 27;

[0037] Specifically, a switch box 26 is installed on the front side of the screening box 1. Through the switch box 26, the entire device can be quickly controlled, making it more convenient to use. Support columns 22 are installed on both the left and right sides of the screening box 1. The bottoms of the support columns 22 are in contact with the ground to support the screening box 1. To avoid friction between the support columns 22 and the ground, rubber pads 23 are installed at the bottoms of the support columns 22 to prevent the support columns 22 from being worn.

[0038] Working principle: First, place the limestone raw material particles through the feeding box 3. At the same time, the crushed limestone raw material particles will be guided by the guiding plate 16 at the bottom of the feeding box 3 and fall onto the screening plate 4. The screening plate 4 cooperates with the vibration motor 17 to screen the limestone. After the first round of screening of the limestone raw materials is completed, start the air cylinder 6 to drive the connecting block 7 to slide inward, so that the connecting block 7 drives the rotating plate 8 to cross and merge inward. At this time, the rotating plate 8 will drive the mounting frame two 11 on the mounting block 10 to slide to the left, and drive the rotating rod 12 to rotate through the rack 15 and the third gear 14, so that the dredging slice 13 removes the blocked particles in the screening groove;

[0039] And by starting the servo motor 208 to drive the first crushing roller 207 to rotate, the first gear 205 and the second gear 206 are meshed with each other to achieve the effect of synchronous rotation. The first crushing roller 204 and the second crushing roller 207 are driven by the first gear 205 and the second gear 206 to crush the limestone raw material particles. When the crushing structure is stuck and damaged, rotate the adjusting screw 201 outward, and drive the first crushing roller 204 and the first gear 205 to smoothly disengage from the second crushing roller 206 through the limiting rod 203, which is convenient for quickly cleaning the clamping position on the crushing device.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Limestone raw material particle screening device, comprising a screening box (1) and a vibration motor (17), characterized in that: The top of the screening box (1) is connected to a feeding box (3). In the middle of the inner side of the screening box (1), a screening plate (4) is fixedly connected. On the right side inside the screening box (1), a fixing plate (5) is fixedly connected. On the front and rear sides of the fixing plate (5), air cylinders (6) are fixedly connected. One end of each of the two air cylinders (6) is fixedly connected to a connecting block (7). On the left side of the two connecting blocks (7), a rotating plate (8) is rotatably connected. In the middle of the two rotating plates (8), a rotating shaft (9) is rotatably connected. On the left side of the two rotating plates (8), a mounting block (10) is rotatably connected. On the left side of the two mounting blocks (10), a second mounting frame (11) is slidably connected. Inside the second mounting frame (11), a rotating rod (12) is rotatably connected. On the outer wall of the rotating rod (12), a plurality of dredging slices (13) are fixedly connected. The front and rear ends of the rotating rod (12) penetrate through the inner wall of the second mounting frame (11) and are fixedly connected to a third gear (14). On the front and rear sides of the top of the screening plate (4), racks (15) are fixedly connected. The outer walls of the two third gears (14) are meshed with the top of the racks (15). Inside the feeding box (3), an adjusting mechanism (2) is provided, and the adjusting mechanism (2) can be used to maintain and dredge the crushing device.

2. The limestone raw material particle screening device according to claim 1, wherein: The adjusting mechanism (2) includes an adjusting screw rod (201). The right end of the adjusting screw rod (201) is threadedly connected to the left side of the feeding box (3). The right end of the adjusting screw rod (201) penetrates through the left side of the feeding box (3) and is rotatably connected to a first mounting frame (202). On the left side of the feeding box (3), a limiting rod (203) is slidably connected. The right ends of the two limiting rods (203) penetrate through the left side of the feeding box (3) and are fixedly connected to the left side of the first mounting frame (202). On the front side of the feeding box (3), a servo motor (208) is fixedly connected. The output end of the servo motor (208) penetrates through the front side of the feeding box (3) and is fixedly connected to a second crushing roller (207). On the front and rear ends of the second crushing roller (207), a second gear (206) is fixedly connected. Inside the first mounting frame (202), a first crushing roller (204) is rotatably connected. The front and rear ends of the first crushing roller (204) penetrate through the inside of the first mounting frame (202) and are fixedly connected to a first gear (205). The outer wall of the first gear (205) is meshed with the outer wall of the second gear (206).

3. The limestone raw material particle screening device according to claim 1, characterized in that: On the front side of the screening box (1), a switch box (26) is fixedly connected. On the right side inside the screening box (1), a guiding plate (16) is fixedly connected.

4. The limestone raw material particle screening device according to claim 1, characterized in that: On the left side of the screening box (1), a support rod (21) is fixedly connected. The top of the support rod (21) is fixedly connected to a placing plate (20).

5. The limestone raw material particle screening device according to claim 4, wherein: On the top of the placing plate (20), a first collecting box (19) is slidably connected. On the left side of the screening box (1), a discharge port (18) is provided.

6. The limestone raw material particle screening device according to claim 1, wherein: On the front side of the screening box (1), a second collecting box (24) is slidably connected. On the front side of the second collecting box (24), a handle (25) is fixedly connected.

7. The limestone raw material particle screening device according to claim 1, characterized in that: Both the left and right sides of the screening box (1) are fixedly connected with a plurality of support columns (22), and rubber pads (23) are fixedly connected to the bottom ends of the plurality of support columns (22).

8. The limestone raw material particle screening device according to claim 1, characterized in that: An observation window (27) is fixedly connected to the front side of the screening box (1), and a plurality of bolts (28) are threadedly connected to the front side of the observation window (27).

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