Material guiding mechanism for cement raw material grinding table

Abstract

The utility model relates to the technical field of cement processing, in particular to a material guide mechanism for a cement raw material grinding table, which not only can pretreat cement raw materials and ensure the crushing and grinding effects of the cement raw materials, but also can ensure the crushing and grinding effects of the cement raw materials after a certain amount of cement raw materials are introduced into a grinding box. The introduction of the cement raw material can be stopped by closing the switch assembly, so that the crushing and grinding efficiency of the two groups of crushing rollers is ensured; comprising a grinding box, two sets of smashing rollers, a mounting frame, a first motor, two sets of belt pulleys, a belt, a pretreatment device, a switch assembly, a screening device and a cleaning device, the top end of the grinding box communicates with a feeding hopper, the two sets of smashing rollers are rotationally installed in the grinding box and meshed, and the pretreatment device is installed at the top end of the grinding box; the pretreatment device corresponds to the feeding hopper in position, the switch assembly is installed in the middle in the pretreatment device, and the cleaning device is installed on the outer wall of the pretreatment device.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a material guiding mechanism for a cement raw material grinding table. Background Art

[0002] In the process of cement production, the raw material mill is one of the key equipment, which is used to grind raw materials such as limestone, clay, iron powder, etc. into fine powder, and these fine powders are called raw materials. In the raw material mill, the material guiding mechanism plays an important role, which is responsible for controlling and guiding the material into the mill for grinding.

[0003] However, the existing material guiding device on the cement raw material grinding equipment does not have a pretreatment device, and the raw materials with too large size will be directly introduced into the equipment for grinding, which is likely to cause damage to the equipment, and it is inconvenient to control the dosage of the cement raw materials entering the grinding device. If too much cement raw materials are introduced, the cement raw materials will block the feeding port of the grinding device, resulting in a slower falling speed of the cement raw materials and reducing its working efficiency. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a material guiding mechanism for a cement raw material grinding table, which can not only pretreat the cement raw materials, ensure the crushing and grinding effect of the cement raw materials, but also stop the introduction of the cement raw materials by closing the switch component when a certain amount of cement raw materials is introduced into the grinding box, so as to ensure the crushing and grinding efficiency of the two groups of crushing rollers.

[0005] The material guiding mechanism for a cement raw material grinding table of the utility model comprises a grinding box, two groups of crushing rollers, a mounting frame, a first motor, two groups of belt pulleys, a belt, a pretreatment device, a switch component, a screening device and a cleaning device. The top end of the grinding box is communicated with a feeding hopper. The two groups of crushing rollers are rotatably installed inside the grinding box and are meshed with each other. The rear ends of the two groups of crushing rollers pass through the rear end of the grinding box and extend to the outside. The mounting frame is installed on the right side of the rear end of the grinding box. The first motor is installed inside the mounting frame, and the output end of the first motor is connected with the rear end of the right crushing roller. The two groups of belt pulleys are respectively installed at the rear parts of the two groups of crushing rollers, and the two groups of belt pulleys are synchronously driven by the belt. The pretreatment device is installed on the top end of the grinding box and corresponds to the position of the feeding hopper. The switch component is installed in the middle part inside the pretreatment device. The screening device is installed at the lower part inside the pretreatment device. The cleaning device is installed on the outer wall of the pretreatment device.

[0006] Preferably, the pretreatment device includes a pretreatment box, four sets of legs, a fixing frame, a second motor, two sets of crushing tool holders, two sets of sprockets, a chain, and a partition. The pretreatment box is installed on the top end of the grinding box through four sets of legs. A discharge hopper is communicated and arranged at the bottom end of the pretreatment box, and the output end of the discharge hopper corresponds to the position of the feed hopper. A feed pipe is communicated and arranged at the top end of the pretreatment box. The fixing frame is installed on the left side of the top end of the pretreatment box. The two sets of crushing tool holders are respectively rotatably installed in the left and right parts of the pretreatment box, and the two sets of crushing tool holders intersect. The partition is installed in the middle of the pretreatment box. The bottom ends of the two sets of crushing tool holders are rotatably connected to the top end of the partition. The switch assembly is installed on the partition, and the screening device is installed in the lower part of the pretreatment box. The second motor is installed inside the fixing frame, and the output end of the second motor is connected to the top end of the left crushing tool holder. The two sets of sprockets are respectively installed on the tops of the two sets of crushing tool holders, and both sets of sprockets are engaged with the chain. The cleaning device is installed at the left end of the pretreatment box, and the cleaning device is located between the screening device and the partition.

[0007] Preferably, the screening device includes a screening plate, four sets of telescopic pipes, four sets of telescopic rods, four sets of first springs, a fixed shaft, a driving wheel, a cam, and a third motor. Installation grooves are respectively arranged on the lower sides of the left and right ends inside the pretreatment box. The four sets of telescopic pipes are respectively installed on the front and rear sides of the bottoms of the two installation grooves of the pretreatment box. The four sets of telescopic rods are respectively installed on the front and rear parts of the left and right sides of the bottom end of the screening plate. The four sets of telescopic rods respectively slide with the four sets of telescopic pipes. The four sets of first springs are respectively sleeved on the four sets of telescopic rods. The screening plate is slidably connected to the two installation grooves of the pretreatment box. A long hole is communicated and arranged on the lower side of the rear end of the pretreatment box. The fixed shaft is installed in the middle of the rear end of the screening plate, and the rear end of the fixed shaft passes through the long hole of the pretreatment box and extends to the outside thereof. The driving wheel is rotatably installed at the rear end of the fixed shaft. The cam corresponds to the driving wheel, and the cam is installed at the output end of the third motor. The third motor is installed on the lower side of the rear end of the pretreatment box.

[0008] Preferably, the switch assembly includes a baffle, a connecting plate, a slider, a screw rod, a fixing plate, and a fourth motor. A material guiding port is communicated and arranged in the middle of the partition. The baffle is located at the material guiding port of the partition. A clamping groove is arranged at the left end of the material guiding port, and the baffle is clamped and installed in cooperation with the clamping groove. An installation cavity is arranged on the right part of the partition, and the material guiding port of the partition is communicated with the installation cavity of the partition. The connecting plate is installed at the right end of the baffle, and the connecting plate is located inside the installation cavity. The slider is installed at the bottom end of the connecting plate. The fixing plate is installed at the right side of the bottom end of the installation cavity. The left end of the screw rod is rotatably installed at the left end of the installation groove, and the right end of the screw rod is rotatably installed on the fixing plate. The fourth motor is installed at the right end of the fixing plate, and the output end of the fourth motor passes through the fixing plate and is connected to the right end of the screw rod. The bottom end of the slider is slidably connected to the bottom end of the installation cavity. A threaded hole is communicated and arranged in the middle of the slider, and the slider is threadedly connected to the screw rod. The baffle is hermetically connected to the clamping groove of the partition, and the baffle is slidably and hermetically connected to the installation cavity of the partition.

[0009] Preferably, the cleaning device includes a cleaning door, a handle, two groups of first vertical plates, a second vertical plate, a bolt, a second spring, and a pull handle. A cleaning port is communicatively provided at the left end of the pretreatment tank. The cleaning port is located between the screening plate and the partition plate. The cleaning door is rotatably installed at the cleaning port of the pretreatment tank. The handle is installed at the left end of the cleaning door. Two groups of first vertical plates are symmetrically installed at the left end of the pretreatment tank. The second vertical plate is installed at the upper front side of the left end of the cleaning door. The second vertical plate corresponds to the positions of the two groups of first vertical plates. Slide holes are communicatively provided on both the two groups of first vertical plates and the second vertical plate. The bolt is slidably connected to the slide holes on the second vertical plate and the two groups of first vertical plates. The second spring is sleeved on the bolt. The second spring is located between the two groups of first vertical plates. One end of the second spring is connected to the bolt, and the other end of the second spring is connected to the inner end of the upper first vertical plate. The pull handle is installed on the left side of the top end of the bolt.

[0010] Preferably, it further includes two groups of scraping plates, and the two groups of scraping plates are respectively installed at the bottoms of the two groups of crushing tool holders.

[0011] Preferably, it further includes two groups of guiding plates, and the two groups of guiding plates are obliquely installed on the upper sides of the left end and the right end inside the grinding tank.

[0012] Preferably, it further includes a control button, and the control button is installed at the upper right front side of the top end of the grinding tank. The control button is electrically connected to the fourth motor.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The cement raw material is introduced into the pretreatment device. The pretreatment device is turned on, and the pretreatment device preliminarily crushes the cement raw material. After the cement raw material is crushed to a certain extent, the switch assembly is turned on, and the cement raw material is introduced into the screening device through the switch assembly. Then, the screening device screens the cement raw material, and the smaller particle cement raw material is introduced into the interior of the grinding tank through the feed hopper. At the same time, the first motor is turned on, and the first motor drives the right crushing roller to rotate. The right crushing roller drives the right pulley to rotate. The right pulley drives the left pulley to rotate through the belt, and the left pulley drives the left crushing roller to rotate. The two groups of crushing rollers crush and grind the cement raw material. When the amount of cement raw material introduced into the grinding tank reaches a certain amount, the switch assembly is turned off. Then, the cleaning device is used to clean the larger particle cement raw material on the screening device. By setting this equipment, not only can the cement raw material be pretreated to ensure the crushing and grinding effect of the cement raw material, but also when a certain amount of cement raw material is introduced into the grinding tank, the introduction of the cement raw material can be stopped by turning off the switch assembly, thereby ensuring the crushing and grinding efficiency of the two groups of crushing rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the first perspective structural schematic diagram of the present utility model;

[0015] Figure 2 is the second perspective structural schematic diagram of the present utility model;

[0016] Figure 3 It is a schematic enlarged sectional structure diagram of the partition board;

[0017] Figure 4 It is Figure 1 an enlarged structure diagram of A in

[0018] Figure 5 It is Figure 1 an enlarged structure diagram of B in

[0019] Figure 6 It is Figure 2 an enlarged structure diagram of C in

[0020] Reference numerals in the drawings: 1, grinding box; 2, feed hopper; 3, crushing roller; 4, mounting frame; 5, first motor; 6, pulley; 7, belt; 8, pretreatment box; 9, support leg; 10, discharge hopper; 11, feed pipe; 12, fixing frame; 13, second motor; 14, crushing tool holder; 15, sprocket; 16, chain; 17, partition board; 18, screening plate; 19, telescopic pipe; 20, telescopic rod; 21, first spring; 22, fixed shaft; 23, driving wheel; 24, cam; 25, third motor; 26, baffle; 27, connecting plate; 28, slider; 29, screw; 30, fixing plate; 31, fourth motor; 32, cleaning door; 33, handle; 34, first vertical plate; 35, second vertical plate; 36, bolt; 37, second spring; 38, handle; 39, scraper; 40, guide plate; 41, control button. Detailed implementation manners

[0021] The following combines the drawings and embodiments to further describe in detail the detailed implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0022] As Figures 1 to 6 shown, the feeding guide mechanism for the cement raw material grinding table of the present utility model includes a grinding box 1, two groups of crushing rollers 3, a mounting frame 4, a first motor 5, two groups of pulleys 6, a belt 7, a pretreatment device, a switch assembly, a screening device, and a cleaning device. The top of the grinding box 1 is communicated with a feed hopper 2. The two groups of crushing rollers 3 are rotatably installed inside the grinding box 1, and the two groups of crushing rollers 3 are meshed with each other. The rear ends of the two groups of crushing rollers 3 both pass through the rear end of the grinding box 1 and extend to the outside thereof. The mounting frame 4 is installed on the right side of the rear end of the grinding box 1. The first motor 5 is installed inside the mounting frame 4. The output end of the first motor 5 is connected to the rear end of the right crushing roller 3. The two groups of pulleys 6 are respectively installed at the rear parts of the two groups of crushing rollers 3, and the two groups of pulleys 6 are synchronously driven by a belt 7. The pretreatment device is installed on the top of the grinding box 1, and the pretreatment device corresponds to the position of the feed hopper 2. The switch assembly is installed in the middle part of the pretreatment device. The screening device is installed in the lower part of the pretreatment device. The cleaning device is installed on the outer wall of the pretreatment device;

[0023] Introduce the cement raw meal into the pretreatment device. Turn on the pretreatment device, and the pretreatment device will initially crush the cement raw meal. After the cement raw meal is crushed to a certain extent, turn on the switch assembly, and the cement raw meal will be introduced into the screening device through the switch assembly. Then, the screening device screens the cement raw meal. The smaller particle cement raw meal will be introduced into the grinding box 1 through the feed hopper 2. At the same time, turn on the first motor 5, and the first motor 5 will drive the right crushing roller 3 to rotate. The right crushing roller 3 will drive the right pulley 6 to rotate. The right pulley 6 will drive the left pulley 6 to rotate through the belt 7. The left pulley 6 will drive the left crushing roller 3 to rotate. The two groups of crushing rollers 3 will crush and grind the cement raw meal. When a certain amount of cement raw meal is introduced into the grinding box 1, turn off the switch assembly. Then, clean the larger particle cement raw meal on the screening device through the cleaning device. By setting this equipment, not only can the cement raw meal be pretreated to ensure the crushing and grinding effect of the cement raw meal, but also when a certain amount of cement raw meal is introduced into the grinding box 1, the introduction of the cement raw meal can be stopped by turning off the switch assembly, thereby ensuring the crushing and grinding efficiency of the two groups of crushing rollers 3.

[0024] As an optimization of the above embodiment, the pretreatment device includes a pretreatment box 8, four sets of legs 9, a fixing frame 12, a second motor 13, two sets of crushing tool holders 14, two sets of sprockets 15, a chain 16 and a partition 17. The pretreatment box 8 is installed at the top of the grinding box 1 through four sets of legs 9. A discharge hopper 10 is communicated and arranged at the bottom end of the pretreatment box 8. The output end of the discharge hopper 10 corresponds to the position of the feed hopper 2. A feed pipe 11 is communicated and arranged at the top end of the pretreatment box 8. The fixing frame 12 is installed on the left side of the top end of the pretreatment box 8. The two sets of crushing tool holders 14 are respectively rotatably installed in the left and right parts of the pretreatment box 8. The two sets of crushing tool holders 14 intersect. The partition 17 is installed in the middle of the pretreatment box 8. The bottom ends of the two sets of crushing tool holders 14 are rotatably connected to the top end of the partition 17. The switch assembly is installed on the partition 17. The screening device is installed in the lower part of the pretreatment box 8. The second motor 13 is installed at the inner end of the fixing frame 12. The output end of the second motor 13 is connected to the top end of the left crushing tool holder 14. The two sets of sprockets 15 are respectively installed on the tops of the two sets of crushing tool holders 14. The two sets of sprockets 15 are both engaged with the chain 16. The cleaning device is installed at the left end of the pretreatment box 8. The cleaning device is located between the screening device and the partition 17;

[0025] By setting up a pretreatment box 8, support legs 9, discharge hopper 10, feed pipe 11, fixing frame 12, second motor 13, crushing tool holder 14, sprockets 15, chain 16 and partition 17, by turning on the second motor 13, the second motor 13 drives the left crushing tool holder 14 to rotate, the left crushing tool holder 14 drives the left sprocket 15 to rotate, the left sprocket 15 meshes with the chain 16, the chain 16 meshes with the right sprocket 15, and the right sprocket 15 drives the right crushing tool holder 14 to rotate. Then, the raw cement material is introduced into the interior of the pretreatment box 8 through the feed pipe 11. The two groups of crushing tool holders 14 cooperate to initially crush the raw cement material. After the raw cement material is crushed to a certain extent, the switch assembly on the partition 17 is turned on, and the raw cement material is introduced onto the screening device through the opening assembly, which plays a role in pre-crushing the raw cement material and preventing the raw cement material with larger particles from damaging the crushing roller 3.

[0026] As a preference of the above embodiment, the screening device includes a screening plate 18, four groups of telescopic pipes 19, four groups of telescopic rods 20, four groups of first springs 21, a fixed shaft 22, a driving wheel 23, a cam 24 and a third motor 25. Installation grooves are provided on the lower sides of the left and right ends inside the pretreatment box 8. The four groups of telescopic pipes 19 are respectively installed on the front and rear sides of the bottoms of the two installation grooves of the pretreatment box 8. The four groups of telescopic rods 20 are respectively installed on the front and rear parts of the left and right sides of the bottom end of the screening plate 18. The four groups of telescopic rods 20 respectively slide in the four groups of telescopic pipes 19. The four groups of first springs 21 are respectively sleeved on the four groups of telescopic rods 20. The screening plate 18 is slidably connected to the two installation grooves of the pretreatment box 8. A long hole is communicated and provided on the lower side of the rear end of the pretreatment box 8. The fixed shaft 22 is installed in the middle of the rear end of the screening plate 18. The rear end of the fixed shaft 22 passes through the long hole of the pretreatment box 8 and extends to the outside thereof. The driving wheel 23 is rotatably installed at the rear end of the fixed shaft 22. The cam 24 corresponds to the position of the driving wheel 23. The cam 24 is installed at the output end of the third motor 25. The third motor 25 is installed on the lower side of the rear end of the pretreatment box 8;

[0027] By setting up the screening plate 18, telescopic pipes 19, telescopic rods 20, first springs 21, fixed shaft 22, driving wheel 23, cam 24 and third motor 25, the raw cement material is introduced onto the screening plate 18 through the switch assembly. By turning on the third motor 25, the third motor 25 drives the cam 24 to rotate. The cam 24 contacts the driving wheel 23 and drives it to move downward. The driving wheel 23 drives the screening plate 18 to move downward through the fixed shaft 22. The four groups of telescopic rods 20 slide in the four groups of telescopic pipes 19, and the four groups of first springs 21 undergo elastic deformation. The four groups of first springs 21 rebound and drive the screening plate 18 to move upward, thereby driving the screening plate 18 to vibrate up and down. The screening plate 18 screens the raw cement material. The screened raw cement material is introduced into the grinding box 1 through the discharge hopper 10 and the feed hopper 2, which plays a role in screening the raw cement material.

[0028] Preferably, as in the above embodiment, the switch assembly includes a baffle plate 26, a connecting plate 27, a slider 28, a screw 29, a fixing plate 30 and a fourth motor 31. A material guiding port is communicated in the middle of the partition plate 17. The baffle plate 26 is located at the material guiding port of the partition plate 17. A clamping groove is arranged at the left end of the material guiding port. The baffle plate 26 is fitted and clamped with the clamping groove. An installation cavity is arranged at the right part of the partition plate 17. The material guiding port of the partition plate 17 is communicated with the installation cavity of the partition plate 17. The connecting plate 27 is installed at the right end of the baffle plate 26. The connecting plate 27 is located in the installation cavity. The slider 28 is installed at the bottom end of the connecting plate 27. The fixing plate 30 is installed at the right bottom end of the installation cavity. The left end of the screw 29 is rotatably installed at the left end of the installation groove. The right end of the screw 29 is rotatably installed on the fixing plate 30. The fourth motor 31 is installed at the right end of the fixing plate 30. The output end of the fourth motor 31 passes through the fixing plate 30 and is connected to the right end of the screw 29. The bottom end of the slider 28 is slidably connected to the bottom end of the installation cavity. A threaded hole is communicated in the middle of the slider 28. The slider 28 is threadedly connected with the screw 29. The baffle plate 26 is hermetically connected with the clamping groove of the partition plate 17. The baffle plate 26 is slidably and hermetically connected with the installation cavity of the partition plate 17;

[0029] By arranging the baffle plate 26, the connecting plate 27, the slider 28, the screw 29, the fixing plate 30 and the fourth motor 31, by turning on the fourth motor 31, the fourth motor 31 drives the screw 29 to rotate. The screw 29 is threadedly connected with the slider 28. The slider 28 drives the baffle plate 26 to slide to the right through the connecting plate 27. The baffle plate 26 extends into the installation cavity of the partition plate 17. The raw cement material is introduced onto the screening plate 18 through the material guiding port on the partition plate 17, which plays a role in controlling the export of the raw cement material and the export dosage.

[0030] Preferably, as in the above embodiment, the cleaning device includes a cleaning door 32, a handle 33, two groups of first vertical plates 34, a second vertical plate 35, a bolt 36, a second spring 37 and a handle 38. A cleaning port is communicated at the left end of the pretreatment box 8. The cleaning port is located between the screening plate 18 and the partition plate 17. The cleaning door 32 is rotatably installed at the cleaning port of the pretreatment box 8. The handle 33 is installed at the left end of the cleaning door 32. Two groups of first vertical plates 34 are symmetrically installed at the left end of the pretreatment box 8. The second vertical plate 35 is installed at the upper front side of the left end of the cleaning door 32. The positions of the second vertical plate 35 and the two groups of first vertical plates 34 correspond. Slide holes are communicated on both the two groups of first vertical plates 34 and the second vertical plate 35. The bolt 36 is slidably connected with the slide holes on the second vertical plate 35 and the two groups of first vertical plates 34. The second spring 37 is sleeved on the bolt 36. The second spring 37 is located between the two groups of first vertical plates 34. One end of the second spring 37 is connected to the bolt 36. The other end of the second spring 37 is connected to the inner end of the upper first vertical plate 34. The handle 38 is installed at the left top of the bolt 36;

[0031] By setting up the cleaning door 32, handle 33, first vertical plate 34, second vertical plate 35, bolt 36, second spring 37 and pull handle 38, when pulling the bolt 36 upward by the pull handle 38, the second spring 37 undergoes elastic deformation. After the bolt 36 is separated from the cleaning door 32, the cleaning door 32 can be opened by the handle 33, and then the larger-particle cement raw material on the screening plate 18 can be cleaned, which plays a role in cleaning the larger-particle cement raw material on the screening plate 18, thus facilitating the re-crushing of the larger-particle cement raw material.

[0032] As an optimization of the above embodiment, it further includes two groups of scraping plates 39, and the two groups of scraping plates 39 are respectively installed at the bottoms of the two groups of crushing tool holders 14;

[0033] By setting up the scraping plates 39, the rotation of the two groups of crushing tool holders 14 drives the rotation of the two groups of scraping plates 39, which not only can prevent the cement raw material from sinking to the bottom and not being fully crushed, but also facilitates the discharge of the crushed cement raw material through the material guiding port of the partition plate 17.

[0034] As an optimization of the above embodiment, it further includes two groups of material guiding plates 40, and the two groups of material guiding plates 40 are obliquely installed on the upper sides of the left end and the right end inside the grinding box 1;

[0035] By setting up the material guiding plates 40, the cement raw material can be more concentratedly introduced between the two groups of crushing rollers 3, ensuring the crushing effect of the cement raw material.

[0036] As an optimization of the above embodiment, it further includes a control button 41, and the control button 41 is installed on the right front side of the top of the grinding box 1, and the control button 41 is electrically connected to the fourth motor 31;

[0037] By setting up the control button 41, it is convenient to control the fourth motor 31 through the control button 41.

[0038] The feeding mechanism for the cement raw material grinding table of the present utility model, when in operation, first turns on the second motor 13, and the second motor 13 drives the left crushing tool rest 14 to rotate. The left crushing tool rest 14 drives the left sprocket 15 to rotate. The left sprocket 15 meshes with the chain 16, and the chain 16 meshes with the right sprocket 15. The right sprocket 15 drives the right crushing tool rest 14 to rotate. Then, the cement raw material is introduced into the interior of the pretreatment box 8 through the feed pipe 11. The two groups of crushing tool rests 14 cooperate to preliminarily crush the cement raw material. After the cement raw material is crushed to a certain extent, turn on the fourth motor 31. The fourth motor 31 drives the screw rod 29 to rotate. The screw rod 29 is threadedly connected to the slider 28. The slider 28 drives the baffle 26 to slide to the right through the connecting plate 27. The baffle 26 extends into the installation cavity of the partition plate 17. Under the action of the two groups of scraping plates 39, the cement raw material is introduced onto the screening plate 18 through the material guiding port of the partition plate 17. At the same time, turn on the third motor 25. The third motor 25 drives the cam 24 to rotate. The cam 24 contacts the driving wheel 23 and drives it to move downward. The driving wheel 23 drives the screening plate 18 to move downward through the fixed shaft 22. The four groups of telescopic rods 20 slide in the four groups of telescopic tubes 19. The four groups of first springs 21 undergo elastic deformation. The four groups of first springs 21 rebound and drive the screening plate 18 to move upward, thereby driving the screening plate 18 to vibrate up and down. The screening plate 18 screens the cement raw material. The screened cement raw material is introduced into the grinding box 1 through the discharge hopper 10 and the feed hopper 2. At the same time, turn on the first motor 5. The first motor 5 drives the right grinding roller 3 to rotate. The right grinding roller 3 drives the right pulley 6 to rotate. The right pulley 6 drives the left pulley 6 to rotate through the belt 7. The left pulley 6 drives the left grinding roller 3 to rotate. The two groups of grinding rollers 3 crush and grind the cement raw material. When the amount of cement raw material introduced into the grinding box 1 reaches a certain amount, reverse the fourth motor 31. The baffle 26 is engaged with the card slot on the partition plate 17 to seal the material guiding port of the partition plate 17. Then, pull the bolt 36 upward through the handle 38. The second spring 37 undergoes elastic deformation. When the bolt 36 is separated from the cleaning door 32, open the cleaning door 32 through the handle 33, and then clean the larger particles of cement raw material on the screening plate 18.

[0039] The installation method, connection method or setting method of the feeding mechanism for the cement raw material grinding table of the present utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the first motor 5, second motor 13, third motor 25, fourth motor 31 and control button 41 of the feeding mechanism for the cement raw material grinding table of the present utility model are purchased on the market, and technicians in this industry only need to install and operate according to the attached user manual.

[0040] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A material guiding mechanism for a cement raw meal grinding station, characterized in that: The invention comprises a grinding box (1), two groups of crushing rollers (3), a mounting frame (4), a first motor (5), two groups of pulleys (6), a belt (7), a pre-processing device, a switch assembly, a screening device and a cleaning device. The top of the grinding box (1) is connected to a feed hopper (2). The two groups of crushing rollers (3) are rotatably mounted inside the grinding box (1). The two groups of crushing rollers (3) are meshed with each other. The rear ends of the two groups of crushing rollers (3) pass through the rear end of the grinding box (1) and extend to the outside thereof. The mounting frame (4) is mounted on the right side of the rear end of the grinding box (1). The first motor (5) is mounted on the inner end of the mounting frame (4), the output end of the first motor (5) is connected to the rear end of the right crushing roller (3), two sets of pulleys (6) are respectively mounted on the rear of the two sets of crushing rollers (3), the two sets of pulleys (6) are synchronously driven by belts (7), the pre-treatment device is mounted on the top of the grinding box (1), the position of the pre-treatment device corresponds to the feed hopper (2), the switch assembly is mounted in the middle of the pre-treatment device, the screening device is mounted in the lower part of the pre-treatment device, and the cleaning device is mounted on the outer wall of the pre-treatment device.

2. The material guiding mechanism for cement raw meal grinding table according to claim 1, characterized in that: The pretreatment device comprises a pretreatment box (8), four groups of legs (9), a fixed frame (12), a second motor (13), two groups of crushing knife frames (14), two groups of sprockets (15), a chain (16) and a partition (17). The pretreatment box (8) is installed on the top of the grinding box (1) through the four groups of legs (9). The bottom of the pretreatment box (8) is connected to a discharge hopper (10). The output end of the discharge hopper (10) corresponds to the position of the feed hopper (2). The top of the pretreatment box (8) is connected to a feed pipe (11). The fixed frame (12) is installed on the left side of the top of the pretreatment box (8). The two groups of crushing knife frames (14) are rotatably installed on the left and right parts of the pretreatment box (8). The two groups of crushing blade racks (14) are staggered, the partition (17) is installed in the middle of the pretreatment box (8), the bottom ends of the two groups of crushing blade racks (14) are rotatably connected to the top end of the partition (17), the switch assembly is installed on the partition (17), the screening device is installed in the lower part of the pretreatment box (8), the second motor (13) is installed at the inner end of the fixed frame (12), the output end of the second motor (13) is connected to the top end of the left crushing blade rack (14), the two groups of sprocket wheels (15) are respectively installed on the top of the two groups of crushing blade racks (14), and the two groups of sprocket wheels (15) are meshed with the chain (16), and the cleaning device is installed at the left end of the pretreatment box (8), and the cleaning device is located between the screening device and the partition (17).

3. The material guiding mechanism for cement raw meal grinding table according to claim 2, characterized in that: The screening device comprises a screening plate (18), four groups of telescopic tubes (19), four groups of telescopic rods (20), four groups of first springs (21), a fixed shaft (22), a driving wheel (23), a cam (24) and a third motor (25). The lower sides of the left and right ends of the pretreatment box (8) are provided with mounting grooves. The four groups of telescopic tubes (19) are respectively mounted on the front and rear sides of the bottom ends of the two groups of mounting grooves of the pretreatment box (8). The four groups of telescopic rods (20) are respectively mounted on the front and rear parts of the left and right sides of the bottom end of the screening plate (18). The four groups of telescopic rods (20) slide with the four groups of telescopic tubes (19) respectively. The four groups of first springs (21) are provided with mounting grooves. The springs (21) are respectively sleeved on the four groups of telescopic rods (20), the screening plate (18) is slidably connected with the two groups of mounting grooves of the pretreatment box (8), the lower side of the rear end of the pretreatment box (8) is connected with a long hole, the fixed shaft (22) is installed in the middle of the rear end of the screening plate (18), the rear end of the fixed shaft (22) passes through the long hole of the pretreatment box (8) and extends to the outside thereof, the driving wheel (23) is rotatably installed on the rear end of the fixed shaft (22), the cam (24) corresponds to the position of the driving wheel (23), the cam (24) is installed at the output end of the third motor (25), and the third motor (25) is installed on the lower side of the rear end of the pretreatment box (8).

4. The material guiding mechanism for cement raw meal grinding table according to claim 3, characterized in that: The switch assembly comprises a baffle (26), a connecting plate (27), a slider (28), a screw (29), a fixing plate (30) and a fourth motor (31). A material guide port is provided in the middle of the baffle (17). The baffle (26) is located at the material guide port of the baffle (17). A card slot is provided at the left end of the material guide port. The baffle (26) and the card slot are card-fitted. An installation cavity is provided at the right part of the baffle (17). The material guide port of the baffle (17) is connected to the installation cavity of the baffle (17). The connecting plate (27) is installed at the right end of the baffle (26). The connecting plate (27) is located in the installation cavity. The slider (28) is installed at the bottom end of the connecting plate (27). The fixing plate (30) is installed on the right side of the bottom end of the installation cavity, the left end of the screw rod (29) is rotatably installed on the left end of the installation groove, the right end of the screw rod (29) is rotatably installed on the fixed plate (30), the fourth motor (31) is installed on the right end of the fixed plate (30), the output end of the fourth motor (31) passes through the fixed plate (30) and is connected to the right end of the screw rod (29), the bottom end of the slider (28) is slidably connected to the bottom end of the installation cavity, a threaded hole is provided in the middle of the slider (28), the slider (28) is threadedly connected to the screw rod (29), the baffle plate (26) is sealed in the slot of the partition plate (17), and the baffle plate (26) is slidably sealed in the installation cavity of the partition plate (17).

5. The material guiding mechanism for cement raw meal grinding table according to claim 4, characterized in that: The cleaning device comprises a cleaning door (32), a handle (33), two groups of first vertical plates (34), a second vertical plate (35), a latch (36), a second spring (37) and a handle (38); a cleaning port is provided at the left end of the pretreatment box (8), the cleaning port is located between the screening plate (18) and the partition plate (17); the cleaning door (32) is rotatably mounted at the cleaning port of the pretreatment box (8); the handle (33) is mounted at the left end of the cleaning door (32); the two groups of first vertical plates (34) are symmetrically mounted at the left end of the pretreatment box (8); the second vertical plate (35) is mounted at the upper front side of the left end of the cleaning door (32); The second vertical plate (35) and the two groups of first vertical plates (34) are in corresponding positions. The two groups of first vertical plates (34) and the second vertical plate (35) are both connected with sliding holes. The latch (36) is slidably connected with the second vertical plate (35) and the sliding holes on the two groups of first vertical plates (34). The second spring (37) is sleeved on the latch (36). The second spring (37) is located between the two groups of first vertical plates (34). One end of the second spring (37) is connected with the latch (36), and the other end of the second spring (37) is connected with the inner end of the upper first vertical plate (34). The handle (38) is installed on the left side of the top end of the latch (36).

6. The material guiding mechanism for cement raw meal grinding table according to claim 5, characterized in that: It also comprises two groups of scrapers (39), which are respectively installed at the bottom of two groups of crushing blade racks (14).

7. The material guiding mechanism for cement raw meal grinding table according to claim 6, characterized in that: It also comprises two groups of material guide plates (40), which are obliquely installed on the upper sides of the left and right ends of the grinding box (1).

8. The material guiding mechanism for cement raw meal grinding table according to claim 7, characterized in that: It also includes a control button (41), which is installed on the right front side of the top end of the grinding box (1), and the control button (41) is electrically connected to the fourth motor (31).

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