Cement grinding bin with novel activated lining plate and grinding machine

Abstract

The cement grinding bin with the novel activation lining plate and the grinding machine comprise a base, a driving mechanism and a grinding cylinder, the driving mechanism and the grinding cylinder are installed on the base, the driving mechanism is connected with the grinding cylinder, and the cement grinding bin with the novel activation lining plate is characterized in that a first discharging grid plate and a second discharging grid plate are arranged in the grinding cylinder; the interior of the grinding barrel is divided into a first grinding bin, a second grinding bin and a third grinding bin through a first discharging grid plate and a second discharging grid plate, a first grinding ball is arranged in the first grinding bin, the second grinding bin is provided with an activation lining plate and a second grinding ball, the third grinding bin is provided with an activation lining plate, and the activation lining plate is provided with an activation lining plate. A discharging screening mechanism is installed at a discharging port of the grinding barrel, the grinding barrel is divided into three grinding bins through two discharging grid plates, grinding balls with small ball diameters and a designed novel activation lining plate are adopted in the second grinding bin to enhance the grinding effect, the passing time of materials is delayed through the novel activation lining plate, and therefore the grinding effect is improved. And a discharge screening device is arranged at the discharge hole to ensure the grinding quality.

Description

Technical Field

[0001] The invention relates to the technical field of cement grinding mills, in particular to a cement grinding bin and a mill with a novel activated lining plate. Background Art

[0002] Cement grinding machines are mainly used for grinding finished products and raw materials in cement plants. They are also suitable for grinding various ores and other grindable materials in metallurgical, chemical, electric power and other industrial and mining enterprises. In the cement production process, the grinding process is a very important link, which has a very important impact on cement quality and production costs.

[0003] At present, during the grinding process of cement grinding mill, the main method is to divide the mill into multiple grinding chambers and place grinding balls with different ball diameters in different grinding chambers to grind the materials. The principle is that the grinding balls break the materials by dropping and rolling in the mill. When the grinding balls are dropped, they directly break the materials; and when the grinding balls roll down, they further break the materials by impact. The grinding balls in the mill not only break the materials, but also rub against each other in the rising stage, which plays a role of shearing and crushing, thereby further grinding the materials.

[0004] However, if only grinding balls are used for grinding, the material does not stay in the grinding chamber of the mill for a long time, resulting in a low grinding effect for the material discharged from the outlet. In addition, current mills discharge materials directly after grinding, and there is still a small amount of material in the discharged material that is unqualified in fineness, affecting the grinding quality of the material. In view of this, we design a cement grinding chamber and mill with a new activated liner. Summary of the invention

[0005] In view of the above technical problems, the present invention provides a cement grinding bin and a mill with a new activated liner, wherein the interior of the grinding cylinder is divided into three grinding bins by two discharge grate plates, and small-diameter grinding balls and a newly designed activated liner are used in the second grinding bin to enhance the grinding effect, the new activated liner is used to delay the passage time of the material, and a discharge screening device is installed at the discharge port to ensure the grinding quality.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A cement grinding bin and a grinding mill with a novel activated liner, comprising a base, a driving mechanism and a grinding cylinder, wherein the driving mechanism and the grinding cylinder are mounted on the base, and the driving mechanism is connected to the grinding cylinder, and is characterized in that a first discharging grate plate and a second discharging grate plate are arranged in the grinding cylinder, and the interior of the grinding cylinder is divided into a first grinding bin, a second grinding bin and a third grinding bin by the first discharging grate plate and the second discharging grate plate, a first grinding ball is arranged in the first grinding bin, an activated liner and a second grinding ball are arranged in the second grinding bin, and an activated liner is arranged in the third grinding bin, and a discharging screening mechanism is installed at the discharging port of the grinding cylinder.

[0008] The driving mechanism is composed of a driving motor, a reducer, a coupling, a driving wheel and a driven wheel. The driving motor is installed on the base through a motor seat. The output end of the driving motor is connected to the reducer. The reducer is connected to the driving wheel through a coupling. The driving wheel is meshed and connected to the driven wheel. The driven wheel is installed on the outer side of the grinding cylinder.

[0009] Furthermore, the central axis of the driving wheel is installed on a support frame through a bearing, and the support frame is fixed on the base.

[0010] The activated liners are arranged at intervals on the inner wall of the grinding cylinder. The spacing between two rows of the activated liners is larger than the diameter of the second grinding ball, and the activated liners in two adjacent rows are arranged in a staggered manner. The activated liners are used to block the material to prevent it from entering the discharge port of the grinding cylinder too quickly, thereby enhancing the grinding effect.

[0011] The diameter of the second grinding ball is smaller than that of the first grinding ball, thereby enhancing the grinding effect.

[0012] The activated liner is composed of a plate body, an anti-collision strip, a sieve plate and a shaking assembly. The sieve plate is installed in the feeding hole arranged on the plate body through the shaking assembly. The hole wall of the feeding hole of the plate body is provided with a mounting hole. The anti-collision strip is welded at intervals on the top of the outer side of the plate body.

[0013] The anti-collision strip is set in an arc structure to reduce the contact area between the ball and the top of the plate, thereby reducing the wear caused by the friction between the ball and the top of the plate and increasing the service life of the plate.

[0014] The shaking assembly includes a telescopic rod and a spring, wherein the spring is arranged between the sieve plate and the wall of the material passing hole of the plate body, and a telescopic rod is arranged inside the spring, wherein one end of the telescopic rod is fixed on the plate body, and the other end of the telescopic rod is fixed on the outer wall of the sieve plate. During the grinding process of the material, the material will hit the sieve plate, and the material with qualified fineness will pass through the sieve plate, while the unqualified material will be retained. Moreover, due to the impact of the material on the sieve plate, the sieve plate will shake, thereby reducing the blockage of the sieve plate.

[0015] The discharging and screening mechanism consists of an outer discharging barrel and an inner discharging barrel, which are respectively installed at the discharging port of the grinding barrel. The inner discharging barrel is located inside the outer discharging barrel. The inner discharging barrel is composed of a connecting part, a screening part and a discharging part connected in sequence. The connecting part is connected to the grinding barrel, and there is a gap between the outer wall of the screening part and the inner wall of the outer discharging barrel. Screening holes are provided on the side wall of the screening part.

[0016] Furthermore, the discharge portion extends out from the outer barrel.

[0017] Furthermore, a feed hopper is installed at the feed inlet of the grinding cylinder by installing a bearing.

[0018] Beneficial effects of the present invention

[0019] The present invention divides the interior of the grinding cylinder into three grinding chambers by two discharging grate plates, and uses grinding balls with small ball diameters and an activated liner in the second grinding chamber to enhance the grinding effect. The activated liner is used to delay the passing time of the material, and a discharging screening device is installed at the discharging port. The material enters the inner discharging cylinder, and the material with qualified fineness is screened out from the screening part of the inner discharging cylinder and enters the outer discharging cylinder for discharging. Some remaining materials with unqualified fineness are discharged from the discharging part of the inner discharging cylinder, thereby ensuring the grinding quality.

[0020] The activated liner designed in the present invention has a sieve plate installed in the two material passing holes of the plate body through multiple sets of shaking components. The sieve plate allows materials with qualified grinding fineness to pass through, and unqualified materials are retained for further grinding, thereby enhancing the grinding effect. When the material hits the sieve plate, the sieve plate shakes, reducing the possibility of clogging of the sieve holes on the sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a cement grinding bin and a grinding mill with a novel activated liner according to the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of a cement grinding bin and a grinding mill with a novel activated liner according to the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the cement grinding bin and grinding cylinder of the grinding machine with a novel activated liner of the present invention;

[0024] Figure 4 It is a schematic diagram of the local structure of the cement grinding bin with a novel activated liner and the activated liner of the grinding mill of the present invention;

[0025] Figure 5 It is a front view schematic diagram of a cement grinding bin with a novel activated liner and an activated liner of a grinding mill according to the present invention;

[0026] Figure 6 It is a partial schematic diagram of the cement grinding bin with a novel activated liner and the shaking assembly of the grinding mill of the present invention;

[0027] As shown in the figure: 1. Grinding cylinder, 11. Feed hopper, 12. First grinding chamber, 13. Second grinding chamber, 14. Third grinding chamber, 15. Mounting bearing, 21. Driving motor, 22. Reducer, 23. Coupling, 24. Driving wheel, 241. Support frame, 25. Driven wheel, 31. First discharging grate plate, 32. Second discharging grate plate, 4. First grinding ball, 5. Second grinding ball, 6. Activated liner, 61. Plate body, 611. Feeding hole, 612. Mounting hole, 62. Anti-collision strip, 63. Screen plate, 641. Spring, 642. Telescopic rod, 71. Outer barrel, 72. Inner discharging barrel, 721. Connecting part, 722. Screening part, 723. Discharging part, 8. Base. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Example 1

[0032] As shown in the figure, a driving mechanism is installed on the base 8, a driving motor 21 in the driving mechanism is installed on the base 8 through a motor seat, an output end of the driving motor 21 is connected to a reducer 22, the reducer 22 is connected to a driving wheel 24 through a coupling 23, the driving wheel 24 is meshedly connected to a driven wheel 25, and the driven wheel 225 is installed on the outer side of the grinding cylinder 1, so that the rotation of the grinding cylinder 1 is controlled by the driving motor 21, wherein the central axis of the driving wheel 24 is installed on a support frame 241 through a bearing, and the support frame 241 is fixed on the base 8,

[0033] like Figure 3 The feed hopper 11 is installed at the feed port of the grinding cylinder 1 by installing the bearing 15, and the material enters the cylinder from the feed hopper 11 for crushing and grinding. The first discharge grate plate 31 and the second discharge grate plate 32 are arranged in the inner cavity of the grinding cylinder 1, wherein the first discharge grate plate 31 and the second discharge grate plate 32 adopt the grate plates used in the existing grinding mill, so their structure is not described in detail in this application.

[0034] The interior of the grinding cylinder 1 is divided into a first grinding chamber 12, a second grinding chamber 13 and a third grinding chamber 14 by a first discharging grate plate 31 and a second discharging grate plate 32. The first grinding chamber 12 is provided with a first grinding ball 4, the second grinding chamber 12 is provided with an activated liner 6 and a second grinding ball 5, and the third grinding chamber 14 is provided with an activated liner 6, wherein the diameter of the second grinding ball 5 is smaller than that of the first grinding ball 4, so as to enhance the grinding effect.

[0035] The activated liners 6 in the second grinding bin are arranged at intervals on the inner wall of the grinding cylinder 1, and the spacing between the two rows of activated liners 6 is larger than the diameter of the second grinding balls 5, so that the second grinding balls 5 are located between the two rows of activated liners 6, and the activated liners 6 in two adjacent rows are arranged in a staggered manner. The activated liners 6 are used to block the materials to prevent them from entering the discharge port of the grinding cylinder 1 too quickly, thereby enhancing the grinding effect. In addition, the arrangement of the activated liners 6 in the third grinding bin 14 is the same as that in the second grinding bin 13.

[0036] like Figure 4 and 5 The activated liner 6 is composed of a plate body 61, an anti-collision strip 62, a sieve plate 63 and a shaking assembly. The sieve plate 63 is installed in the feeding hole 611 set on the plate body 61 through the shaking assembly. The hole wall of the feeding hole 611 of the plate body 61 is provided with a mounting hole 612, and the mounting hole 612 is used to fix the plate body 61 on the inner wall of the grinding cylinder 1. The anti-collision strip 62 is welded on the outer top of the plate body 61 at intervals, and the anti-collision strip 62 is set to an arc structure in order to reduce the contact area between the second grinding ball 5 for grinding and the top of the plate body 61, thereby reducing the wear caused by the friction between the ball and the top of the plate body, and increasing the service life of the plate body.

[0037] like Figure 6The shaking assembly includes a telescopic rod 642 and a spring 641. The spring 641 is arranged between the sieve plate 63 and the wall of the material passing hole 611 of the plate body 61. The telescopic rod 642 is arranged inside the spring 641, and one end of the telescopic rod 642 is fixed on the plate body 61, and the other end is fixed on the outer wall of the sieve plate 63. During the grinding process, the material will hit the sieve plate 63, and the material with qualified fineness will pass through the sieve plate 63, and the unqualified material will be retained. Due to the impact of the material on the sieve plate 63, the sieve plate 63 will shake, thereby reducing the blockage of the sieve holes on the sieve plate 63.

[0038] like Figure 2 and 3 A discharging screening mechanism is installed at the discharging port of the grinding cylinder 1, wherein the discharging screening mechanism consists of an outer discharging cylinder 71 and an inner discharging cylinder 72, and the outer discharging cylinder 71 and the inner discharging cylinder 72 are respectively installed at the discharging port of the grinding cylinder 1, the inner discharging cylinder 72 is located inside the outer discharging cylinder 71, and the inner discharging cylinder 72 is composed of a connecting portion 721, a screening portion 722 and a discharging portion 723 which are connected in sequence, the connecting portion 721 is connected to the grinding cylinder 1, and there is a gap between the outer wall of the screening portion 721 and the inner wall of the outer discharging cylinder 71, and a screening hole is provided on the side wall of the screening portion 721, which is used to screen the material to ensure the quality, and in addition, the discharging portion 723 of the inner discharging cylinder 72 extends out from the outer discharging cylinder 71.

[0039] Example 2

[0040] In the application process of the present invention, the material is fed from the feed hopper 11 and enters the grinding cylinder 1 for grinding. The grinding cylinder 1 is controlled to rotate by a driving motor 21. When the grinding cylinder 1 rotates, the first grinding ball 4 and the second grinding ball 5 adhere to the inner wall of the cylinder under the action of centrifugal force and the friction force generated with the inner wall of the cylinder, rotate with the cylinder, and are brought to a certain height and then fall freely. When falling, the grinding balls hit the material at the bottom like projectiles to crush it. In addition, the grinding balls will slide and roll in the rotating grinding cylinder 1, resulting in grinding between the grinding balls and the materials, so that the materials are ground. In addition, the activated liner 6 arranged in the second grinding bin 13 and the third grinding bin is used to delay the passing time of the materials, and the sieve plate 63 is installed in the material passing hole 611 arranged on the activated liner 6, so that the materials with qualified fineness pass through the sieve plate 63, and the unqualified materials will be retained, so as to further improve the grinding effect.

[0041] A discharge screening mechanism is installed at the discharge port of the grinding cylinder 1. When the ground material enters the inner discharge cylinder 72, the material with qualified fineness is screened out from the screening part 722 of the inner discharge cylinder 72 and enters the outer discharge cylinder 71 for discharge. Some remaining material with unqualified fineness will be discharged from the discharge part 723 of the inner discharge cylinder 72, thereby ensuring the grinding quality.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A cement grinding bin and a grinding mill with a novel activated liner, comprising a base, a driving mechanism and a grinding cylinder, wherein the driving mechanism and the grinding cylinder are mounted on the base, and the driving mechanism is connected to the grinding cylinder, and characterized in that: A first discharging grate plate and a second discharging grate plate are arranged in the grinding cylinder, and the interior of the grinding cylinder is divided into a first grinding bin, a second grinding bin and a third grinding bin by the first discharging grate plate and the second discharging grate plate. A first grinding ball is arranged in the first grinding bin, an activated liner and a second grinding ball are arranged in the second grinding bin, and an activated liner is arranged in the third grinding bin. A discharging screening mechanism is installed at the discharging port of the grinding cylinder.

2. The cement grinding bin and mill with a novel activated liner according to claim 1, characterized in that The driving mechanism consists of a driving motor, a reducer, a coupling, a driving wheel and a driven wheel. The driving motor is installed on the base through a motor seat, the output end of the driving motor is connected to the reducer, the reducer is connected to the driving wheel through a coupling, the driving wheel is meshed and connected to the driven wheel, and the driven wheel is installed on the outside of the grinding cylinder.

3. The cement grinding bin and mill with a novel activated liner according to claim 2, characterized in that The central axis of the driving wheel is installed on a support frame through a bearing, and the support frame is fixed on a base.

4. The cement grinding bin and mill with a novel activated liner according to claim 1, characterized in that The activated liners are arranged at intervals on the inner wall of the grinding cylinder, the spacing between two rows of the activated liners is greater than the diameter of the second grinding ball, and the activated liners in two adjacent rows are arranged in a staggered manner, and the activated liners are used to block the material.

5. The cement grinding bin and mill with a novel activated liner according to claim 4, characterized in that The diameter of the second grinding ball is smaller than the diameter of the first grinding ball.

6. The cement grinding bin and mill with a novel activated liner according to claim 5, characterized in that The activated lining is composed of a plate body, an anti-collision strip, a sieve plate and a shaking assembly. The sieve plate is installed in the feeding hole arranged on the plate body through the shaking assembly. The hole wall of the feeding hole of the plate body is provided with mounting holes, and anti-collision strips are welded at intervals on the outer top of the plate body.

7. The cement grinding bin and mill with a novel activated liner according to claim 6, characterized in that The anti-collision strip is arranged in an arc-shaped structure.

8. The cement grinding bin and mill with a novel activated liner according to claim 7, characterized in that The shaking assembly includes a telescopic rod and a spring. The spring is arranged between the screen plate and the wall of the feeding hole of the plate body. The telescopic rod is arranged inside the spring. One end of the telescopic rod is fixed on the plate body, and the other end of the telescopic rod is fixed on the outer wall of the screen plate.

9. The cement grinding bin and mill with a novel activated liner according to claim 1, characterized in that The discharging and screening mechanism consists of an outer discharging barrel and an inner discharging barrel, which are respectively installed at the discharging port of the grinding barrel. The inner discharging barrel is located inside the outer discharging barrel. The inner discharging barrel is composed of a connecting part, a screening part and a discharging part connected in sequence. The connecting part is connected to the grinding barrel, and there is a gap between the outer wall of the screening part and the inner wall of the outer discharging barrel. Screening holes are provided on the side wall of the screening part.

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