Efficient vertical mill device for cement raw materials

Abstract

The utility model relates to the technical field of cement production, in particular to a cement raw material efficient vertical mill device which comprises a grinding tank, a rotating shaft is rotatably connected to the inner wall of the bottom of the grinding tank, a grinding plate is fixedly connected to the arc-shaped inner wall of the grinding tank, and the rotating shaft penetrates through the outer wall of the top of the grinding plate. A supporting assembly is fixedly connected to the top of the arc-shaped inner wall of the grinding tank, grinding assemblies distributed at equal intervals are fixedly connected to the arc-shaped outer wall of the rotating shaft, a conical filter plate is fixedly connected to the position, below the grinding plate, of the arc-shaped inner wall of the grinding tank, and a conveying assembly is fixedly connected to the arc-shaped outer wall of the conical filter plate. The connecting pipe can be connected with the negative pressure equipment, the negative pressure equipment enables negative pressure to be generated in the grinding tank, negative pressure is generated at the bottom of the grinding seat through the cavity and the material pumping pipe, and ground raw materials are pumped into the conical filter plate through the material pumping pipe and the cavity to be screened and filtered, so that in the grinding process, the grinding efficiency is improved, and the grinding efficiency is improved. And the situation that a large amount of dust escapes is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement production technical field, concretely is a kind of cement raw material efficient vertical mill device. BACKGROUND

[0002] Material that is ground to a certain fineness by proportioning lime raw material, clay raw material and a small amount of correction raw material (sometimes also add mineralizer, seed crystal etc., also need to add coal when vertical kiln production) is called cement raw material, in the cement production process, a kind of cement raw material efficient vertical mill device is needed to grind cement raw material.

[0003] In prior art, there are problems as follows:

[0004] After raw material is ground, there will be the phenomenon that particle size is not uniform, after raw material screening, the raw material with larger particle size often needs to be manually input into grinding tank, so that a lot of auxiliary work needs to be manually carried out in grinding process, so that working efficiency is reduced, in addition, dust cannot be treated when grinding, so that air quality in production workshop is very poor, and the safety and health of workers are at risk. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of cement raw material efficient vertical mill device to solve the problems presented in the above background.

[0006] The technical scheme of the utility model is: a kind of cement raw material efficient vertical mill device, including grinding tank, the rotating shaft is rotatably connected in the bottom inner wall of grinding tank, the grinding plate is fixedly connected in the arc inner wall of grinding tank, and the rotating shaft passes through the top outer wall of grinding plate, the support assembly is fixedly connected in the arc inner wall top of grinding tank, the grinding assembly of equidistance distribution is fixedly connected in the arc outer wall of rotating shaft, the conical filter plate is fixedly connected in the arc inner wall below grinding plate of grinding tank, the conveying assembly is fixedly connected in the arc outer wall of conical filter plate, the connecting pipe is fixedly connected in the arc outer wall of grinding tank, the first filter screen is fixedly connected in one side of the arc inner wall of connecting pipe, the discharge assembly is fixedly connected in the arc inner wall below conical filter plate of grinding tank, and the power assembly is fixedly connected in the outer wall of the bottom of grinding tank.

[0007] Preferably, the support assembly includes support fixedly connected in the arc inner wall of grinding tank, the outer wall of one side of support is fixedly connected with bearing, and the arc inner wall of rotating shaft and bearing is fixedly connected.

[0008] Preferably, the grinding assembly includes grinding seat fixedly connected in the arc outer wall of rotating shaft, the outer wall of one side of grinding seat is inclined plane structure, the second filter screen is fixedly connected in the outer wall of bottom of grinding seat, the suction pipe is fixedly connected in the outer wall of top of grinding seat, and the suction pipe and rotating shaft are fixedly connected.

[0009] Preferably, the rotating shaft is internally provided with a cavity, and the material extraction pipes are in communication with the cavity, and the bottom of the arc-shaped inner wall of the cavity is provided with through holes distributed at equal distances.

[0010] Preferably, the conveying assembly comprises a material guide pipe fixedly connected to the arc-shaped inner wall of the conical filter plate, and the material guide pipe penetrates through the arc-shaped outer wall of the grinding tank, the arc-shaped outer wall of the material guide pipe is fixedly connected with a material conveying pipe, the material conveying pipe is in communication with the grinding tank, the top inner wall of the material conveying pipe is rotatably connected with an auger rod, and the bottom outer wall of the auger rod is fixedly connected with a transmission rod.

[0011] Preferably, the power assembly comprises a motor fixedly connected to the bottom outer wall of the grinding tank, and the output shaft of the motor is fixedly connected with the rotating shaft, and the rotating shaft and the arc-shaped outer wall of the transmission rod are sleeved with a transmission belt.

[0012] Preferably, the discharging assembly comprises a material guide plate fixedly connected to the arc-shaped inner wall of the grinding tank and arranged obliquely, the arc-shaped outer wall of the grinding tank is fixedly connected with a discharge hopper near the material guide plate, and the arc-shaped outer wall of the grinding tank is slidably connected with a baffle near the discharge hopper.

[0013] The cement raw material high-efficiency vertical grinding device provided by the utility model has the following improvements and advantages compared with the prior art.

[0014] Firstly, the conical filter plate, the material guide pipe, the material conveying pipe, the auger rod, the transmission rod and the transmission belt are arranged, so that the raw material with large particles can be blocked by the conical filter plate during the grinding work, the raw material is collected at the bottom of the conical filter plate through the conical structure of the conical filter plate, the raw material is conveyed into the material conveying pipe through the material guide pipe, the auger rod is driven to rotate through the transmission belt and the transmission rod in the rotating process of the rotating shaft, the raw material is lifted by cooperating with the material conveying pipe, and finally reenters the grinding tank to perform grinding work again, so that manual auxiliary operation is not needed, and the work efficiency is improved.

[0015] Secondly, the connecting pipe, the first filter screen, the grinding seat, the second filter screen, the material extraction pipe and the cavity are arranged, so that the connecting pipe is connected with the negative pressure equipment during use, the negative pressure equipment generates negative pressure in the grinding tank, the cavity and the material extraction pipe generate negative pressure at the bottom of the grinding seat, the ground raw material is extracted into the conical filter plate through the material extraction pipe and the cavity, and is screened and filtered, so that a large amount of dust does not escape during the grinding process, the air quality inside the production workshop is ensured, and the health of the workers is protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in connection with the drawings and embodiments as follows:

[0017] Figure 1It is a three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is a conveying pipe structure schematic diagram of the utility model;

[0019] Figure 3 It is a grinding pot and motor structure schematic diagram of the utility model;

[0020] Figure 4 It is a grinding pot cross-section structure schematic diagram of the utility model;

[0021] Figure 5 It is a rotating shaft and cavity structure schematic diagram of the utility model.

[0022] Mark explanation:

[0023] 1, grinding pot;2, discharge hopper;3, baffle;4, connecting pipe;5, support;6, bearing;7, conveying pipe;8, transmission belt;9, transmission rod;10, motor;11, auger rod;12, pumping pipe;13, grinding seat;14, grinding plate;15, first filter screen;16, conical filter plate;17, guide pipe;18, rotating shaft;19, guide plate;20, second filter screen;21, cavity. Specific implementation

[0024] The utility model is described in detail below, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] The utility model improves a cement raw material high -efficient vertical mill device, and the technical scheme of the utility model is:

[0026] As Figures 1-5As shown, a cement raw material high-efficiency vertical grinding device, including grinding tank 1, the inner wall of the bottom of grinding tank 1 is rotatably connected with the rotating shaft 18, the arc-shaped inner wall of grinding tank 1 is fixedly connected with the grinding plate 14, and the rotating shaft 18 penetrates through the top outer wall of the grinding plate 14, the arc-shaped inner wall of the top of grinding tank 1 is fixedly connected with the support assembly, the arc-shaped outer wall of the rotating shaft 18 is fixedly connected with the grinding assembly distributed at equal distances, the arc-shaped inner wall of grinding tank 1 is fixedly connected with the conical filter plate 16 below the grinding plate 14, the arc-shaped outer wall of the conical filter plate 16 is fixedly connected with the conveying assembly, the arc-shaped outer wall of grinding tank 1 is fixedly connected with the connecting pipe 4, one side of the arc-shaped inner wall of the connecting pipe 4 is fixedly connected with the first filter screen 15, the arc-shaped inner wall of grinding tank 1 is fixedly connected with the discharging assembly below the conical filter plate 16, and the outer wall of the bottom of grinding tank 1 is fixedly connected with the power assembly; by the above structure, the raw material with large particles can be blocked by the conical filter plate 16, and the raw material is collected at the bottom of the conical filter plate 16 through the conical structure of the conical filter plate 16.

[0027] Further, the support assembly includes the brackets 5 fixedly connected with the arc-shaped inner wall of grinding tank 1 and distributed at equal distances, one side of the outer wall of the bracket 5 is fixedly connected with the bearing 6, and the arc-shaped inner wall of the rotating shaft 18 and the bearing 6 are fixedly connected; by the above structure, the stability of the rotating shaft 18 in the rotating process can be improved through the bracket 5 and the bearing 6.

[0028] Further, the grinding assembly includes the grinding seat 13 fixedly connected with the arc-shaped outer wall of the rotating shaft 18, one side of the outer wall of the grinding seat 13 is a slope structure, the bottom outer wall of the grinding seat 13 is fixedly connected with the second filter screen 20, the top outer wall of the grinding seat 13 is fixedly connected with the material suction pipe 12, and the material suction pipe 12 and the rotating shaft 18 are fixedly connected; by the above structure, the raw material can be gradually extruded through the slope side wall of the grinding seat 13 to realize the function of grinding.

[0029] Further, the rotating shaft 18 is internally provided with the cavity 21, the material suction pipe 12 is in communication with the cavity 21, and the arc-shaped inner wall of the cavity 21 is provided with the through holes distributed at equal distances at the bottom; by the above structure, the raw material after grinding can be sucked into the conical filter plate 16 through the material suction pipe 12 and the cavity 21 by the negative pressure at the grinding seat 13 and the preliminary screening of the second filter screen 20.

[0030] Further, the conveying assembly includes the material guide pipe 17 fixedly connected with the arc-shaped inner wall of the conical filter plate 16, and the material guide pipe 17 penetrates through the arc-shaped outer wall of grinding tank 1, the arc-shaped outer wall of the material guide pipe 17 is fixedly connected with the material conveying pipe 7, the material conveying pipe 7 is in communication with grinding tank 1, the top inner wall of the material conveying pipe 7 is rotatably connected with the auger rod 11, and the bottom outer wall of the auger rod 11 is fixedly connected with the transmission rod 9; by the above structure, the auger rod 11 can be driven to rotate through the transmission belt 8 and the transmission rod 9 in the rotating process of the rotating shaft 18, the raw material can be lifted through the cooperation of the material conveying pipe 7, and finally reenters grinding tank 1.

[0031] Furthermore, the power assembly includes a motor 10 fixedly connected to the outer wall of the bottom of the grinding jar 1, and the output shaft of the motor 10 and the rotating shaft 18 are fixedly connected. The rotating shaft 18 and the arc-shaped outer wall of the transmission rod 9 are fitted with a transmission belt 8. With the above structure, the switch of the motor 10 can be turned on, the motor 10 drives the rotating shaft 18 to rotate, and the rotating shaft 18 drives the grinding seat 13 to move during the rotation to perform grinding work.

[0032] Furthermore, the discharge assembly includes a guide plate 19 fixedly connected to the arc-shaped inner wall of the grinding tank 1 and inclinedly arranged, a discharge hopper 2 fixedly connected to the arc-shaped outer wall of the grinding tank 1 near the guide plate 19, and a baffle 3 slidably connected to the arc-shaped outer wall of the grinding tank 1 near the discharge hopper 2. With the above structure, small raw materials can fall onto the guide plate 19 through the conical filter plate 16. The inclined guide plate 19 concentrates the raw materials at the discharge hopper 2. After the grinding work is completed, the baffle 3 slides upward, and the raw materials are discharged from the device through the discharge hopper 2.

[0033] Working Principle: During use, connect the connecting pipe 4 to the negative pressure device. The negative pressure device creates negative pressure in the grinding tank 1. Through the cavity 21 and the extraction pipe 12, negative pressure is created at the bottom of the grinding seat 13. The raw material is poured into the grinding tank 1. Dust generated during the feeding process is absorbed by the grinding seat 13, reducing dust dispersion. Turn on the motor 10 switch. The motor 10 drives the rotating shaft 18 to rotate. During the rotation of the shaft 18, the grinding seat 13 moves along the surface of the grinding plate 14. The raw material is gradually squeezed through the inclined sidewall of the grinding seat 13, achieving the grinding function. During the grinding process, the negative pressure at the grinding seat 13, combined with the preliminary screening by the second filter screen 20, draws the ground raw material through the extraction pipe 12 and the cavity 21 into the conical filter plate 16 for screening and filtration. Therefore, during the grinding process, there is no significant dust dispersion. This ensures air quality inside the production workshop, thereby protecting the health of the workers. During the grinding process, larger raw materials are blocked by the conical filter plate 16. The conical structure of the filter plate 16 collects the raw materials at the bottom of the filter plate 16 and conveys them to the conveying pipe 7 through the guide pipe 17. During the rotation of the rotating shaft 18, the auger rod 11 is driven to rotate through the transmission belt 8 and the transmission rod 9, which, together with the conveying pipe 7, lifts the raw materials. Finally, the raw materials re-enter the grinding tank 1 for grinding again. No manual assistance is required, which improves work efficiency. Smaller raw materials fall onto the guide plate 19 through the conical filter plate 16. The inclined guide plate 19 concentrates the raw materials at the discharge hopper 2. After the grinding work is completed, the baffle 3 slides upward, and the raw materials are discharged from the device through the discharge hopper 2, completing the grinding work.

Claims

1. A high-efficiency vertical mill device for cement raw materials, characterized in that: The equipment includes a grinding tank (1), a rotating shaft (18) rotatably connected to the inner wall of the bottom of the grinding tank (1), a grinding plate (14) fixedly connected to the arc-shaped inner wall of the grinding tank (1), and the rotating shaft (18) passing through the outer wall of the top of the grinding plate (14). A support assembly is fixedly connected to the top of the arc-shaped inner wall of the grinding tank (1), and grinding components distributed at equal intervals are fixedly connected to the arc-shaped outer wall of the rotating shaft (18). A conical filter plate (16) is fixedly connected to the arc-shaped inner wall of the grinding tank (1) below the grinding plate (14). A conveying assembly is fixedly connected to the arc-shaped outer wall of the conical filter plate (16). A connecting pipe (4) is fixedly connected to the arc-shaped outer wall of the grinding tank (1). A first filter screen (15) is fixedly connected to one side of the arc-shaped inner wall of the connecting pipe (4). A discharge assembly is fixedly connected to the arc-shaped inner wall of the grinding tank (1) below the conical filter plate (16). A power assembly is fixedly connected to the outer wall of the bottom of the grinding tank (1).

2. The high-efficiency vertical mill device for cement raw materials according to claim 1, characterized in that: The support assembly includes brackets (5) that are fixedly connected to the arc-shaped inner wall of the grinding jar (1) and are distributed at equal distances. A bearing (6) is fixedly connected to one side of the outer wall of the bracket (5), and the rotating shaft (18) and the arc-shaped inner wall of the bearing (6) are fixedly connected.

3. The high-efficiency vertical mill device for cement raw materials according to claim 1, characterized in that: The grinding assembly includes a grinding seat (13) fixedly connected to the arc-shaped outer wall of the rotating shaft (18). One side of the outer wall of the grinding seat (13) is a sloping structure. A second filter screen (20) is fixedly connected to the bottom outer wall of the grinding seat (13). A material extraction pipe (12) is fixedly connected to the top outer wall of the grinding seat (13), and the material extraction pipe (12) and the rotating shaft (18) are fixedly connected.

4. The high-efficiency vertical mill device for cement raw materials according to claim 3, characterized in that: The rotating shaft (18) has a cavity (21) inside, and the material extraction pipe (12) is connected to the cavity (21). The bottom of the arc-shaped inner wall of the cavity (21) has through holes distributed at equal intervals.

5. The high-efficiency vertical mill device for cement raw materials according to claim 1, characterized in that: The conveying assembly includes a guide pipe (17) fixedly connected to the arc-shaped inner wall of the conical filter plate (16), and the guide pipe (17) passes through the arc-shaped outer wall of the grinding tank (1). The guide pipe (17) is fixedly connected to the arc-shaped outer wall of the guide pipe (17), and the conveying pipe (7) is connected to the grinding tank (1). The top inner wall of the conveying pipe (7) is rotatably connected to an auger rod (11), and the bottom outer wall of the auger rod (11) is fixedly connected to a transmission rod (9).

6. The high-efficiency vertical mill device for cement raw materials according to claim 5, characterized in that: The power assembly includes a motor (10) fixedly connected to the outer wall of the bottom of the grinding jar (1), and the output shaft and the rotating shaft (18) of the motor (10) are fixedly connected. The rotating shaft (18) and the transmission rod (9) are fitted with a transmission belt (8) on their arc-shaped outer walls.

7. The high-efficiency vertical mill device for cement raw materials according to claim 1, characterized in that: The discharge assembly includes a guide plate (19) fixedly connected to the arc-shaped inner wall of the grinding tank (1) and inclinedly arranged. A discharge hopper (2) is fixedly connected to the arc-shaped outer wall of the grinding tank (1) near the guide plate (19). A baffle (3) is slidably connected to the arc-shaped outer wall of the grinding tank (1) near the discharge hopper (2).

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