Material guiding device for cement raw material grinding table

Abstract

The utility model provides a material guiding device for a cement raw material grinding table, and relates to the technical field of cement production, the material guiding device comprises a material guiding pipe, a material blocking assembly and a crushing assembly used for crushing materials are sequentially arranged in the material guiding pipe from top to bottom, and the material blocking assembly comprises a first rotating shaft, a first motor and a material blocking plate; the first rotating shaft is rotationally arranged in the material guiding pipe through a bearing and extends out of the material guiding pipe, the first motor drives the first rotating shaft to rotate, and the material blocking plate is located in the material guiding pipe and fixedly arranged on the first rotating shaft; according to the device, by arranging the material blocking assembly, intermittent blocking and releasing of materials are achieved, the falling speed and flow of the materials are effectively controlled, the situation that the materials are accumulated and blocked above the crushing assembly due to the fact that the amount of the added materials is too large can be prevented, smooth falling of the materials is guaranteed, and therefore stable operation of the cement raw material grinding table is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cement production, in particular to a material guiding device for a cement raw material grinding table. BACKGROUND

[0002] The material obtained by mixing lime raw material, clay raw material and a small amount of correction raw material (sometimes mineralizer, seed crystal, etc. are also added, and coal is also added during the production of a shaft kiln) in a certain proportion and grinding to a certain fineness is called cement raw material. In cement production, the raw material needs to be guided to the cement raw material grinding table through a material guiding device. For example, a kind of quick material guiding device for a cement raw material grinding table disclosed in Chinese patent CN202221901862.8 includes a conveying frame, a rotating roller, a driving motor and an inlet frame. The device solves the problems that the existing material guiding device for a cement raw material grinding table is easy to block the grinding position of the cement raw material grinding table after conveying and the raw material directly falling on the working position of the cement raw material grinding table is easy to damage the cement raw material grinding table, so that the cement raw material can be conveyed more conveniently and the damage of the processing position of the cement raw material grinding table caused by the falling of the raw material can be better prevented.

[0003] However, the existing technology has certain limitations in use. If the amount of added material is too large, the material will accumulate and block above the rotating roller, thereby slowing down the falling speed of the material and affecting the working efficiency of the material guiding device. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a material guiding device for a cement raw material grinding table, which can solve the technical problem that the existing technology has certain limitations in use. If the amount of added material is too large, the material will accumulate and block above the rotating roller, thereby slowing down the falling speed of the material and affecting the working efficiency of the material guiding device.

[0005] The embodiment of the present application provides a material guiding device for a cement raw material grinding table, which includes a material guiding pipe. A material blocking assembly and a crushing assembly for crushing the material are sequentially arranged in the material guiding pipe from top to bottom. The material blocking assembly includes a first rotating shaft, a first motor and a material blocking plate. The first rotating shaft is rotatably arranged in the material guiding pipe and extends out of the material guiding pipe. The first motor drives the first rotating shaft to rotate. The material blocking plate is arranged in the material guiding pipe and fixedly arranged on the first rotating shaft.

[0006] The crushing assembly includes a second motor, two second rotating shafts, two gears and two crushing rollers. The second rotating shafts are rotatably arranged in the material guiding pipe. The second rotating shafts extend out of the material guiding pipe and are fixedly connected with the gears. The second motor drives one of the second rotating shafts to rotate. The two gears are meshingly connected. The crushing rollers are arranged in the material guiding pipe and fixedly arranged on the second rotating shafts.

[0007] The lower part of the crushing assembly is provided with a screen.

[0008] The crushing assembly and the screen are provided with a scraping assembly for scraping the materials intercepted on the upper end of the screen.

[0009] The scraping assembly comprises a scraper, a screw rod, a screw sleeve, a third motor and two discharge pipes, the two discharge pipes are respectively arranged at the left and right ends of the guide pipe, the inner wall of the guide pipe is provided with a sliding groove extending into the discharge pipe, the screw rod is rotatably arranged in the sliding groove and extends out of the discharge pipe, the third motor drives the screw rod to rotate, the screw sleeve is threadedly sleeved on the screw rod, and the screw sleeve is limitingly and slidably connected with the sliding groove, the scraper is attached to the upper end of the screen, and the scraper is fixedly connected with the screw sleeve.

[0010] The discharge pipe is provided with a movable baffle penetrating through the discharge pipe, and the outer wall of the guide pipe is fixedly provided with an air cylinder, and the air cylinder drives the baffle to move.

[0011] The lower part of the screen is obliquely provided with a receiving plate.

[0012] The lower end of the receiving plate and the inner wall of the guide pipe are fixedly provided with a reinforcing rod.

[0013] The top of the guide pipe is communicated with a feeding hopper.

[0014] The beneficial effects of the utility model are as follows:

[0015] The cement raw material grinding table guide device provided by the utility model adds the materials into the guide pipe, and the materials then fall on the baffle plate, the first motor is started to drive the first rotating shaft to rotate, the first rotating shaft drives the baffle plate to rotate, the baffle plate rotates to make the materials continue to fall, the materials then fall on the crushing assembly to be crushed, and the crushed materials are guided to the cement raw material grinding table processing position along the guide pipe; when the amount of the materials added into the guide pipe is too large, the first motor is stopped to stop the rotation of the first rotating shaft and the baffle plate, the materials are intercepted by the baffle plate and cannot continue to fall on the crushing assembly; the device is provided with the baffle assembly, intermittent blocking and releasing of the materials are realized, the falling speed and flow of the materials are effectively controlled, the amount of the added materials is prevented from being too large to cause the materials to be accumulated and blocked above the crushing assembly, the materials are smoothly fallen, and the stable operation of the cement raw material grinding table is ensured; the device is provided with the crushing assembly, large materials are crushed into smaller particles, the uniformity of the materials conveyed to the corresponding position of the cement raw material grinding table is better, large materials are prevented from blocking the cement raw material grinding table, and the grinding efficiency and product quality of the cement raw material grinding table are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a sectional view of the overall front structure in some embodiments of the present application;

[0018] Figure 2 is a schematic view of the overall front structure in some embodiments of the present application;

[0019] Figure 3 is Figure 1 is an enlarged view of the structure at A.

[0020] The reference signs are respectively:

[0021] 1, material guide pipe; 11, chute; 12, air cylinder; 13, feeding hopper;

[0022] 2, material blocking assembly; 21, first rotating shaft; 22, first motor; 23, material blocking plate;

[0023] 3, crushing assembly; 31, second motor; 32, second rotating shaft; 33, gear; 34, crushing roller;

[0024] 4, screen;

[0025] 5, material scraping assembly; 51, scraper; 52, screw; 53, screw sleeve; 54, third motor; 55, material discharge pipe; 56, baffle;

[0026] 6, material receiving plate; 61, reinforcing rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained based on the embodiments of the application by those of ordinary skill in the art without creative effort are within the scope of the application.

[0029] It should be noted that similar reference numbers and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0030] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0033] As Figure 1 and 2As shown in the figure, the cement raw material mill table material guide device provided by the embodiment of the application comprises a material guide pipe 1, a material blocking assembly 2 and a crushing assembly 3 for crushing the material are sequentially arranged in the material guide pipe 1 from top to bottom, the material blocking assembly 2 comprises a first rotating shaft 21, a first motor 22 and a material blocking plate 23, the first rotating shaft 21 is rotatably arranged in the material guide pipe 1 and extends out of the material guide pipe 1, the first motor 22 drives the first rotating shaft 21 to rotate, and the material blocking plate 23 is arranged in the material guide pipe 1 and fixedly arranged on the first rotating shaft 21.

[0034] In use, the material is added into the material guide pipe 1, then falls onto the material blocking plate 23, the first motor 22 is turned on to drive the first rotating shaft 21 to rotate, the first rotating shaft 21 drives the material blocking plate 23 to rotate, the material blocking plate 23 drives the material to continue to fall when rotating, then the material falls onto the crushing assembly 3 to be crushed, and the crushed material is guided to the cement raw material mill table processing position along the material guide pipe 1; when the amount of the material added into the material guide pipe 1 is too large, the first motor 22 is turned off to stop the rotation of the first rotating shaft 21 and the material blocking plate 23, the material is blocked and retained by the material blocking plate 23 and cannot continue to fall onto the crushing assembly 3.

[0035] The device realizes intermittent blocking and releasing of the material by arranging the material blocking assembly 2, effectively controls the falling speed and flow of the material, prevents the material from being accumulated and blocked above the crushing assembly 3 due to the large amount of the added material, ensures smooth falling of the material, and thus ensures stable operation of the cement raw material mill table; the device crushes large pieces of material into smaller particles by arranging the crushing assembly 3, ensures better uniformity of the material delivered to the corresponding position of the cement raw material mill table, prevents large pieces of material from blocking the cement raw material mill table, and improves the grinding efficiency of the cement raw material mill table and the product quality.

[0036] As shown in the figure, Figure 1 and 2 In the embodiment, the crushing assembly 3 comprises a second motor 31, two second rotating shafts 32, two gears 33 and two crushing rollers 34, the second rotating shaft 32 is rotatably arranged in the material guide pipe 1, and the second rotating shaft 32 extends out of the material guide pipe 1 and is fixedly connected with the gear 33, the second motor 31 drives one of the second rotating shafts 32 to rotate, the two gears 33 are meshingly connected, and the crushing roller 34 is arranged in the material guide pipe 1 and fixedly arranged on the second rotating shaft 32.

[0037] In use, the material falls onto the crushing roller 34, the second motor 31 is turned on to drive the second rotating shaft 32 to rotate, the second rotating shaft 32 drives the gear 33 to rotate, the gear 33 drives the other gear 33 to rotate, the other gear 33 drives the other second rotating shaft 32 to rotate, and the two second rotating shafts 32 drive the two crushing rollers 34 to rotate towards each other, so as to crush the material.

[0038] As shown in the figure, Figure 1As shown, in this embodiment, a screen 4 is provided below the crushing component 3; the crushed material falls onto the screen 4 for screening, a small amount of large material is trapped on the screen 4, and the material that meets the particle size requirements passes through the screen 4 and continues to fall; by setting the screen 4, this device can screen out materials that do not meet the specified particle size, ensuring that the particle size of the material entering the cement raw material grinding table is uniform, and reducing the wear and energy consumption of the cement raw material grinding table.

[0039] like Figure 1 As shown, in this embodiment, a scraping component 5 is provided between the crushing component 3 and the screen 4 to scrape away the material trapped on the upper end of the screen 4; by setting the scraping component 5, the device scrapes away the material trapped on the screen 4, ensuring the continuous unobstructed flow of the screen 4 and improving the reliability and stability of the equipment.

[0040] like Figure 1 and 3 As shown, in this embodiment, the scraping assembly 5 includes a scraper 51, a screw 52, ​​a screw sleeve 53, a third motor 54, and two discharge pipes 55. The two discharge pipes 55 are respectively connected to the left and right ends of the guide pipe 1. The inner wall of the guide pipe 1 is provided with a sliding groove 11 and extends into the discharge pipe 55. The screw 52 is rotatably disposed in the sliding groove 11 through a bearing and extends out of the discharge pipe 55. The third motor 54 drives the screw 52 to rotate. The screw sleeve 53 is threadedly sleeved on the screw 52, ​​and the screw sleeve 53 is slidably connected to the sliding groove 11. The scraper 51 is attached to the upper end of the screen 4, and the scraper 51 is fixedly connected to the screw sleeve 53.

[0041] When it is necessary to clean the screen 4, the third motor 54 is turned on to drive the screw 52 to rotate. The screw 52 drives the screw sleeve 53 to move, and the screw sleeve 53 drives the scraper 51 to move. When the scraper 51 moves, it scrapes away the material trapped on the upper end of the screen 4 and discharges it through the discharge pipe 55. A screw conveyor can be connected to the discharge pipe 55 to transport large pieces of material to the outside or to be reintroduced into the guide pipe 1. The screw sleeve 53 and the chute 11 work together to guide and limit the scraper 51.

[0042] like Figure 1 and 2 As shown, in this embodiment, a baffle 56 is provided on the discharge pipe 55 and can be movably inserted through the discharge pipe 55. A cylinder 12 is fixedly provided on the outer wall of the guide pipe 1, and the cylinder 12 drives the baffle 56 to move.

[0043] During normal material feeding, the baffle 56 closes the discharge pipe 55 to prevent material from being discharged from the discharge pipe 55. When cleaning the screen 4, the cylinder 12 is activated to move the baffle 56 out of the discharge pipe 55, which will not affect the normal movement and scraping operation of the scraper 51.

[0044] like Figure 1As shown in this embodiment, a receiving plate 6 is inclinedly arranged below the screen 4. In use, after the material passes through the screen 4, it continues to fall and then hits the receiving plate 6. The material then continues to be guided along the guide pipe 1 to the cement raw material grinding table for processing. By setting the receiving plate 6, this device buffers the falling material and prevents the material from directly hitting the cement raw material grinding table, thus reducing the wear of the material on the cement raw material grinding table.

[0045] like Figure 1 As shown, in this embodiment, a reinforcing rod 61 is fixedly provided between the lower end of the receiving plate 6 and the inner wall of the guide tube 1; by providing the reinforcing rod 61, the connection strength between the receiving plate 6 and the inner wall of the guide tube 1 is enhanced, thereby improving the stability and durability of the device.

[0046] like Figure 1 and 2 As shown, in this embodiment, the top of the feed pipe 1 is connected to the feed hopper 13, which can conveniently realize the continuous input of materials.

[0047] Working principle: When the material guiding device for the cement raw material grinding table provided in this application is in use, the material is added into the material guiding pipe 1, and the material then falls onto the baffle plate 23. The first motor 22 is turned on to drive the first rotating shaft 21 to rotate, and the first rotating shaft 21 drives the baffle plate 23 to rotate. When the baffle plate 23 rotates, it drives the material to continue falling. When the amount of material added into the material guiding pipe 1 is too large, the first motor 22 is turned off to stop the rotation of the first rotating shaft 21 and the baffle plate 23. The material is blocked and intercepted by the baffle plate 23 and cannot continue to fall onto the crushing roller 34.

[0048] The material then falls onto the crushing roller 34, and the second motor 31 is turned on to drive the second rotating shaft 32 to rotate. The second rotating shaft 32 drives the gear 33 to rotate, the gear 33 drives another gear 33 to rotate, the other gear 33 drives another second rotating shaft 32 to rotate, and the two second rotating shafts 32 drive the two crushing rollers 34 to rotate in opposite directions, thereby crushing the material.

[0049] The crushed material falls onto screen 4 for screening. A small amount of large material is trapped on screen 4. Material that meets the particle size requirements passes through screen 4 and continues to fall. The material then falls onto receiving plate 6, and then continues to be guided along guide pipe 1 to the cement raw material grinding table processing position.

[0050] When cleaning the screen 4, the cylinder 12 is turned on to move the baffle 56 out of the discharge pipe 55. Then the third motor 54 is turned on to drive the screw 52 to rotate. The screw 52 drives the screw sleeve 53 to move. The screw sleeve 53 drives the scraper 51 to move. When the scraper 51 moves, it scrapes away the material stuck at the upper end of the screen 4 to the discharge pipe 55 for discharge. A screw conveyor can be connected to the discharge pipe 55 to transport large pieces of material to the outside or to be reintroduced into the guide pipe 1.

[0051] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall fall into the protective scope of the present application.

Claims

1. A material guiding device for a raw meal mill table of a cement plant, characterized in that: The utility model provides a material guiding pipe (1), which is sequentially provided from top to bottom with a material blocking assembly (2) and a crushing assembly (3) for crushing the material.

2. A material guiding device for raw meal grinding tables of cement plants according to claim 1, characterized in that: The crushing assembly (3) includes a second motor (31), two second rotating shafts (32), two gears (33) and two crushing rollers (34).

3. A material guiding device for raw meal grinding table of a cement plant according to claim 1, characterized in that: The crushing assembly (3) is provided below with a screen (4).

4. A material guiding device for raw meal grinding tables of cement plants according to claim 3, characterized in that: The crushing assembly (3) and the screen (4) are provided with a material scraping assembly (5) for scraping the material trapped on the upper end of the screen (4).

5. A material guiding device for a raw meal mill table of a cement plant according to claim 4, characterized in that: The material scraping assembly (5) includes a scraper (51), a screw rod (52), a screw sleeve (53), a third motor (54) and two discharge pipes (55).

6. A material guiding device for raw meal grinding tables of cement plants according to claim 5, characterized in that: The discharge pipes (55) are movably provided with baffles (56).

7. A material guiding device for raw meal table of a cement raw mill according to claim 3, characterized in that: The screen (4) is provided below with a material receiving plate (6).

8. A material guiding device for raw meal grinding tables of cement plants according to claim 7, characterized in that: The material receiving plate (6) is provided below with a reinforcing rod (61).

9. A material guiding device for raw meal grinding table of a cement plant according to claim 1 characterized in that: The material guiding pipe (1) is provided at the top with a feeding hopper (13).

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