Mill device for cement processing

Abstract

The utility model discloses a mill device for cement processing, and relates to the technical field of cement processing. Comprising a base, a speed reducer, a machine shell and a powder separator, a millstone base driven by the speed reducer is arranged in an inner cavity of the machine shell, grinding rollers driven by a motor are rotationally connected to the two sides of the inner cavity of the machine shell, a feeding pipe extending to the position above the center of the top of the millstone base is arranged on the rear side of the machine shell, and swing rods are rotationally connected to the positions, located on the two sides of the feeding pipe, of the inner cavity of the machine shell through rotating shafts; one end of the swing rod is integrally connected with an impact rod, the other end of the swing rod is integrally connected with a counterweight ball, and the grinding roller is provided with an abutting mechanism which is matched with the counterweight ball to drive the swing rod to swing; according to the mill device for cement processing, by arranging the swing rod, the rotating shaft, the balance weight ball, the impact rod and the abutting mechanism, in the rotating process of the grinding roller, the balance weight ball can be abutted, so that the impact rod can impact the feeding pipe downwards in a reciprocating mode, discharging of materials in the feeding pipe is promoted, and blockage caused by aggregate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a grinding machine device for cement processing. Background Art

[0002] When preparing cement raw materials, a vertical mill is usually used to grind and select slag to grind the slag into the required powder. When the vertical mill is working normally, the motor drives the grinding disc to rotate through the reducer, and the material falls on the center of the grinding disc from the feed port through the feeder. At the same time, hot air enters the mill from the air inlet. As the grinding disc rotates, the material moves to the edge of the grinding disc under the action of centrifugal force, and is crushed by the grinding roller when passing through the annular groove on the grinding disc. The crushed material is carried by the high-speed airflow of the wind ring at the edge of the grinding disc, and the large particles fall directly on the grinding disc for re-grinding. When the material in the airflow passes through the upper powder classifier, under the action of the rotating rotor, the coarse powder falls from the cone bucket to the grinding disc for re-grinding, and the qualified fine powder is discharged from the mill with the airflow and collected by the dust collecting device as the product. The material containing moisture is dried during the contact with the hot airflow. By adjusting the powder classifier, the coarseness required for different products can be achieved.

[0003] The current vertical mill concentrator uses the rotation and rolling of the grinding disc and grinding roller to grind the cement raw materials. There is usually moisture inside the cement raw materials. During the feeding process, some slag will adhere to the inner wall of the feed port. During long-term use, it will cause the cement raw materials to accumulate inside the feed port, causing certain obstacles to the subsequent feeding. Utility Model Content

[0004] The utility model provides a grinding machine device for cement processing to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding device for cement processing, comprising a base, a reducer, a casing and a powder classifier, the inner cavity of the casing is provided with a grinding disc seat driven by the reducer, both sides of the inner cavity of the casing are rotatably connected with grinding rollers driven by a motor, the grinding rollers cooperate with the grinding disc seat, and the top periphery of the grinding disc seat is formed with an abrasive step that cooperates with the grinding roller, the rear side of the casing is provided with a feed pipe extending to the top center of the grinding disc seat, the inner cavity of the casing is located on both sides of the feed pipe and is rotatably connected with a swing rod through a rotating shaft, one end of the swing rod is integrally connected with a collision rod, and the other end of the swing rod is integrally connected with a counterweight ball, and the grinding roller is provided with a resistance mechanism that cooperates with the counterweight ball to drive the swing rod to swing.

[0006] Furthermore, the resistance mechanism includes a connecting column and an extrusion block. The grinding roller is connected to the connecting column on one side facing the feed pipe. The outer wall of the connecting column is provided with extrusion blocks distributed in a ring shape. The extrusion blocks cooperate with the counterweight balls.

[0007] Furthermore, a limiting rod is fixedly provided on the feed pipe to limit the end of the swing rod close to the impact rod from continuing to lift upward.

[0008] Furthermore, the abrasive step has at least three steps.

[0009] Furthermore, a truncated cone seat is installed at the top center of the grinding wheel seat, a cavity is formed inside the lower part of the grinding wheel seat, a through hole connected to the cavity is opened on the lower periphery of the grinding wheel seat, and exhaust holes connected to the cavity are evenly opened on the top of the truncated cone seat.

[0010] Furthermore, a material guiding conical platform located below the feed pipe is installed on the top of the truncated platform.

[0011] Compared with the prior art, the utility model provides a grinding mill device for cement processing, which has the following beneficial effects: the grinding mill device for cement processing, by arranging a swing rod, a rotating shaft, a counterweight ball, an impact rod and a resistance mechanism, can resist the counterweight ball during the rotation of the grinding roller, so that the swing rod is reciprocatingly lifted close to one end of the counterweight ball, and the impact rod can reciprocatingly hit the feed pipe downward to promote the discharge of materials inside the feed pipe and avoid blockage due to aggregation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0014] Figure 3 It is an enlarged schematic diagram of point A of the utility model;

[0015] Figure 4 It is an enlarged schematic diagram of point B of the present utility model.

[0016] In the figure: 1. base; 2. reducer; 3. casing; 4. powder classifier; 5. grinding disc seat; 6. grinding roller; 7. feed pipe; 8. abrasive ladder; 9. connecting column; 10. swing rod; 11. rotating shaft; 12. counterweight ball; 13. extrusion block; 14. limit rod; 15. impact rod; 16. cavity; 17. through hole; 18. round table seat; 19. exhaust hole; 20. material guide cone table. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model discloses a grinding mill device for cement processing, including a base 1, a reducer 2, a casing 3 and a powder classifier 4. The inner cavity of the casing 3 is provided with a grinding disc seat 5 driven by the reducer 2, and grinding rollers 6 driven by a motor are rotatably connected on both sides of the inner cavity of the casing 3. The grinding rollers 6 cooperate with the grinding disc seat 5, and an abrasive step 8 cooperating with the grinding rollers 6 is formed on the top periphery of the grinding disc seat 5. A feed pipe 7 extending to the top center of the grinding disc seat 5 is provided on the rear side of the casing 3. The inner cavity of the casing 3 is located on both sides of the feed pipe 7 and is rotatably connected with a swing rod 10 through a rotating shaft 11. One end of the swing rod 10 is integrally connected with a collision rod 15, and the other end of the swing rod 10 is integrally connected with a counterweight ball 12. The grinding roller 6 is provided with a resistance mechanism that cooperates with the counterweight ball 12 to drive the swing rod 10 to swing.

[0019] Specifically, the abutment mechanism includes a connecting column 9 and an extrusion block 13 . The grinding roller 6 is connected to the connecting column 9 on one side facing the feed pipe 7 . The outer wall of the connecting column 9 is provided with an annularly distributed extrusion block 13 . The extrusion block 13 cooperates with the weight ball 12 .

[0020] In this embodiment, the weight of the counterweight ball 12 is heavier than the impact rod 15, so that when the swing rod 10 is not affected by external force, the impact rod 15 is in a lifted state. When the connecting column 9 rotates with the grinding roller 6, the extrusion block 13 can repeatedly resist the counterweight ball 12, so that the swing rod 10 can swing back and forth, so that the impact rod 15 can swing back and forth downward to impact the feed pipe 7.

[0021] Specifically, a limiting rod 14 is fixedly provided on the feed pipe 7 to limit the end of the swing rod 10 that is close to the impact rod 15 from continuing to lift upward.

[0022] In this embodiment, the limit rod 14 is used to limit the angle of the impact rod 15 when it is lifted upward, so as to limit the rotation of the swing rod 10 so that the weighted ball 12 can stably contact the interference mechanism without causing any obstruction to the interference mechanism.

[0023] Specifically, the abrasive step 8 has at least three steps.

[0024] In this embodiment, the abrasive step 8 has five steps. The abrasive step 8 is annular as a whole. When it is arranged on the top periphery of the grinding disc seat 5, it takes the grinding area at the large end of the grinding roller 6 as a reference and extends toward the center of the grinding disc seat 5 in a stepped manner. This can extend the residence time of the material on the grinding disc seat 5, increase the grinding effect between the materials, and also improve the adaptability of the vertical mill to the material particle size.

[0025] Specifically, a truncated cone seat 18 is installed at the top center of the grinding wheel seat 5, a cavity 16 is formed inside the lower part of the grinding wheel seat 5, a through hole 17 connected to the cavity 16 is opened on the lower periphery of the grinding wheel seat 5, and exhaust holes 19 connected to the cavity 16 are evenly opened on the top of the truncated cone seat 18.

[0026] A material guiding conical platform 20 located below the feed pipe 7 is installed on the top of the truncated platform seat 18 .

[0027] In this embodiment, a hot air hood is installed on the casing 3 and is located below the grinding wheel seat 5. The hot air hood covers the lower part of the grinding wheel seat 5 to provide hot air and discharge the hot air upward through the cooperation of the through hole 17, the cavity 16 and the exhaust hole 19.

[0028] To sum up, the cement processing grinding mill device, by providing a swing arm 10, a rotating shaft 11, a counterweight ball 12, an impact rod 15 and a resistance mechanism, can resist the counterweight ball 12 during the rotation of the grinding roller 6, so that the swing arm 10 is reciprocatingly lifted close to one end of the counterweight ball 12, and the impact rod 15 can reciprocatingly strike the feed pipe 7 downward, so as to promote the discharge of materials inside the feed pipe 7 and avoid blockage due to aggregation.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding mill device for cement processing, comprising a base (1), a reducer (2), a housing (3) and a powder classifier (4), characterized in that: The inner cavity of the housing (3) is provided with a grinding wheel seat (5) driven by a speed reducer (2), grinding rollers (6) driven by a motor are rotatably connected to both sides of the inner cavity of the housing (3), the grinding rollers (6) cooperate with the grinding wheel seat (5), and an abrasive step (8) cooperating with the grinding rollers (6) is formed on the top periphery of the grinding wheel seat (5). A feed pipe (7) extending to the top center of the grinding wheel seat (5) is provided on the rear side of the housing (3), and swing rods (10) are rotatably connected to both sides of the feed pipe (7) of the inner cavity of the housing (3) through a rotating shaft (11), one end of the swing rod (10) is integrally connected to a striking rod (15), and the other end of the swing rod (10) is integrally connected to a counterweight ball (12), and a resistance mechanism cooperating with the counterweight ball (12) to drive the swing rod (10) to swing is provided on the grinding roller (6).

2. A cement processing grinding mill device according to claim 1, characterized in that: The interference mechanism comprises a connecting column (9) and an extrusion block (13); the side of the grinding roller (6) facing the feed pipe (7) is connected to the connecting column (9); the outer wall of the connecting column (9) is provided with annularly distributed extrusion blocks (13); the extrusion blocks (13) cooperate with the weighted balls (12).

3. A cement processing grinding mill device according to claim 1, characterized in that: A limiting rod (14) is fixedly provided on the feed pipe (7) to limit the end of the swing rod (10) that is close to the impact rod (15) from continuing to lift upward.

4. A cement processing grinding mill device according to claim 1, characterized in that: The abrasive step (8) has at least three steps.

5. A cement processing grinding mill device according to claim 1, characterized in that: A truncated cone seat (18) is installed at the center of the top of the grinding wheel seat (5), a cavity (16) is formed inside the lower part of the grinding wheel seat (5), a through hole (17) communicating with the cavity (16) is opened on the lower outer periphery of the grinding wheel seat (5), and exhaust holes (19) communicating with the cavity (16) are evenly opened on the top of the truncated cone seat (18).

6. A cement processing grinding mill device according to claim 5, characterized in that: A material guiding conical platform (20) located below the feed pipe (7) is installed on the top of the truncated platform seat (18).

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