CN210545632U

CN210545632U - Vertical mill material stabilizing device

Info

Publication number: CN210545632U
Application number: CN201921418547.8U
Authority: CN
Inventors: 许健; 王泽磊; 李建会; 胡秀海; 陈明; 郭世伟; 王昭恒; 董学江
Original assignee: Laishui Jinyu Jidong Environmental Protection Technology Co Ltd
Current assignee: Laishui Jinyu Jidong Environmental Protection Technology Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-19
Anticipated expiration: 2029-08-29

Abstract

In order to solve the problems that the cement materials are unevenly accumulated in the center of the grinding disc, the materials are subjected to mechanical force increase, the material flow rate on the grinding disc is too high, the material layer formation with stable thickness is not facilitated, the work doing efficiency of the grinding machine is low and the like, the utility model discloses a vertical grinding material stabilizing device, which comprises a plurality of homogenizing plates, a material stabilizing cone with an upward vertex, a grinding disc cover plate and a retainer ring, wherein the homogenizing plates are uniformly fixed on the material stabilizing cone along the conical generatrix direction of the material stabilizing cone, the bottom of the material stabilizing cone is arranged on the grinding disc cover plate in a threaded connection mode, the upward retainer ring is fixedly arranged on the outer edge circumference of the grinding disc cover plate, the bottom of the material stabilizing cone is positioned in the retainer ring, the bottom of the material stabilizing cone is lower than, the material layer on the grinding disc is smooth, a stable material layer with reasonable thickness is formed, and the grinding device has the beneficial effects of enhancing the grinding capacity of the pre-grinding system, reducing the energy consumption, improving the output per hour and the like. The utility model relates to a grind technical field of equipment immediately.

Description

Vertical mill material stabilizing device

Technical Field

The utility model relates to a technical field who immediately grinds equipment especially relates to a surely material device of immediately grinding.

Background

In the prior art, the CKP vertical mill is an important device applied to the cement grinding industry, and plays a role of pre-grinding in a combined grinding system which is mainstream in the cement grinding industry. The working principle of the vertical mill is that materials mixed in proportion enter the center of a rotating millstone from a center feeder, the materials move from the center of the millstone to the edge of the millstone under the action of centrifugal force and inertia to form a material layer with certain thickness on the millstone, and the materials are crushed, sheared and extruded in a grinding area between the millstone and the grinding roller and then are discharged from a scraping bin to the vertical mill to enter the next process.

However, due to the comprehensive factors of the granularity, the moisture, the fluidity, the addition amount of the mixed material, the natural angle of repose, the segregation degree of the material, the position of the feeder, the position of the grinding roller, the form of the grinding disc and the angle of the grinding roller, the problems of uneven material layer, unstable thickness and the like on the grinding disc are caused, and a stable material layer with reasonable thickness is difficult to form, so the work proportion of the ball mill in the combined grinding system is increased, the energy consumption is increased, and the output per hour is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide a surely material device of vertical mill, strengthen the grinding ability of grinding system in advance, can reduce the work proportion of the lower ball mill of work efficiency in jointly grinding system, can effectively reduce the energy consumption of unit product, improve the output of machine hour. The pre-grinding performance of the CKP vertical mill is fully exerted, so that the aims of saving energy and reducing consumption are fulfilled.

The utility model discloses a realize through following technical scheme: the utility model provides a surely material device of vertical mill, including a plurality of homogenization boards, the ascending steady material awl in summit, mill apron and retaining ring, a plurality of homogenization boards are fixed uniformly on steady material awl along the circular cone generating line direction of steady material awl, the bottom of steady material awl is installed on mill apron through the threaded connection mode, the outer fringe ring week of mill apron sets firmly ascending retaining ring, the bottom of steady material awl is located within the retaining ring, the bottom of steady material awl is less than the height of retaining ring, the mill is connected to the ring week of mill apron. The beneficial effects are that: through installing a plurality of homogenization boards on the steady material awl, the homogenization board distributes evenly on the steady material awl, make the material by the glassware down at first reach steady material awl, the material is through, receive the effort along with a plurality of homogenization boards on the steady material awl of mill pivoted, divide into stranded material stream etc. rapidly with a strand material stream equally, every strand material stream receives the effort of a homogenization board along mill rotation direction respectively, move to the grinding area by the mill center fast, simultaneously because of the mandatory action of homogenization board, the material granularity has been reduced, moisture, the material that mobility etc. changes and cause piles up uneven phenomenon at the mill center, thereby make the bed of material on the mill level and smooth, form the steady material layer of reasonable thickness. The grinding capacity of the pre-grinding system is enhanced, the acting proportion of the ball mill with lower acting efficiency in the combined grinding system can be reduced, the energy consumption of unit products can be effectively reduced, and the machine-hour output is improved; the pre-grinding performance of the CKP vertical mill is fully exerted, so that the aims of saving energy and reducing consumption are fulfilled.

Furthermore, the included angle between the material stabilizing cone and the grinding disc cover plate is 20-30 degrees. Has the advantages that: the angle of an included angle between the material stabilizing cone and the grinding disc cover plate cannot be too large, so that the material cannot be isolated when passing through the material stabilizing device, meanwhile, the material is subjected to proper mechanical force, the material flow rate on the grinding disc is proper, a material layer with stable thickness is favorably formed, the work efficiency of the grinding machine is improved, and severe vibration cannot be caused; the angle can not be too small, the capacity of treating the material amount can be properly improved, partial materials are prevented from flowing to the grinding disc without passing through the effect of the material stabilizing cone, and a good material stabilizing effect is achieved. Through measurement and experiment, the back taper angle is designed to be two thirds of the feed material repose angle to be the best, and the back taper angle is preferably 20-30 degrees.

Preferably, the check ring and the grinding disc cover plate are connected by welding or integrally formed. Has the advantages that: the installation is convenient.

Preferably, the homogenizing plate and the material stabilizing cone are connected by welding or integrally formed. Has the advantages that: the installation is convenient, improves the life who actuates the part.

Preferably, the grinding disc cover plate can be divided into two bodies, three bodies or more than three bodies. Has the advantages that: the installation is convenient.

The beneficial effects are that: compared with the prior art, the utility model enhances the grinding capacity of the pre-grinding system, can reduce the acting proportion of the ball mill with lower acting efficiency in the combined grinding system, can effectively reduce the energy consumption of unit products, and improves the output per hour; the pre-grinding performance of the CKP vertical mill is fully exerted, so that the aims of saving energy and reducing consumption are fulfilled.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a top view of a preferred embodiment of the present invention;

FIG. 2 is an axial cross-sectional view of FIG. 1;

fig. 3 is a schematic diagram of the preferred embodiment of the present invention in a pre-grinding system;

wherein the reference numerals are: 1. a homogenizing plate; 2. a material stabilizing cone; 3. a grinding disc cover plate; 4. a retainer ring; 5. a grinding disc; 6. a blanking device; 7. and (3) feeding.

Detailed Description

The preferred embodiments of the present invention are shown in fig. 1-3, which are used to supplement the description of the text part of the specification with figures, so as to facilitate the understanding of the technical features and the technical solutions as a whole of the present invention, but should not be construed as limiting the present invention. In the description of the present invention, the relative position relationship of the top, bottom, etc. is based on fig. 3; the above and below include the same numbers. Technical words not specifically explained may be regarded as broad meanings in the prior art.

As shown in fig. 1-3, a material stabilizing device for a vertical mill comprises a plurality of homogenizing plates 1, a material stabilizing cone 2 with an upward vertex, a mill cover plate 3 and a retainer ring 4, wherein the number of the homogenizing plates 1 can be three, four, five or more, and is generally preferably four, the following description takes four homogenizing plates 1 as an embodiment, the four homogenizing plates 1 are uniformly fixed on the material stabilizing cone 2 along the conical generatrix direction of the material stabilizing cone 2, the position of the homogenizing plate 1 can be determined according to the height of a grinding roller, and preferably, the four homogenizing plates 1 and the material stabilizing cone 2 are welded or integrally formed, so that the installation is convenient, and the service life of an actuating part is prolonged. The material stabilizing cone 2 is positioned below the feeder 6, the diameter of the inner cavity at the bottom of the feeder 6 is D, the vertex of the material stabilizing cone 2 is positioned at the center of the circle of the feeder 6, the homogenizing plate 1 extends downwards out of the bottom of the feeder 6 and has a component extension length S in the horizontal direction, the bottom of the material stabilizing cone 2 is detachably arranged on the grinding disc cover plate 3 in a bolt-nut connection mode, an upward check ring 4 is fixedly arranged on the periphery of the outer edge of the grinding disc cover plate 3, the inner diameter of the check ring 4 is D1, and S is smaller than or equal to D1-D; the height of the retainer ring 4 is H1, the height of the homogenizing plate 1 is H2, H2 is greater than or equal to the height H1 of the tail ring, and preferably, H2 is greater than or equal to H1; the length L of the homogenizing plate 1 can be selected according to the diameter D of the downer 6, L =0.3D1-0.4D1, preferably L =0.35D 1; the bottom of the material stabilizing cone 2 is positioned in the retainer ring 4, the bottom of the material stabilizing cone 2 is lower than the height H1 of the retainer ring 4, the periphery of the grinding disc cover plate 3 is connected with the grinding disc 5, and the falling speed of the material 7 can be buffered by the material 7 between the bottom of the material stabilizing cone 2 and the retainer ring 4; after the parameters of the homogenizing plate 1, the check ring 4, the material stabilizing cone 2 and the like are determined, the homogenizing plate can be matched with the feeder 6 to continuously feed materials to the grinding disc 5 at a constant speed and stably, so that the material layer on the grinding disc 5 is smooth, and a stable material layer with reasonable thickness is formed. Preferably, the check ring 4 and the grinding disc cover plate 3 are welded or integrally formed, so that the installation is convenient. Through installing four homogenization boards 1 on steady material awl 2, homogenization board 1 distributes evenly on steady material awl 2, make material 7 by lower glassware 6 at first reach steady material awl 2, when material 7 passes through, receive the effort of four homogenization boards 1 on the steady material awl 2 along with mill 5 pivoted, divide into four strands of material flows equally rapidly with one strand of material flow, every strand of material flow receives the effort of a homogenization board 1 along 5 rotation direction of mill respectively, move to the grinding area by 5 centers of mill 5 fast, simultaneously because of homogenization board 1's mandatory action, the granularity of material 7 has been reduced, moisture, material 7 that mobility etc. change caused piles up uneven phenomenon at mill 5 centers, thereby make the bed of material on mill 5 level and smooth, form the steady bed of material of reasonable thickness. The grinding capacity of the pre-grinding system is enhanced, the acting proportion of the ball mill with lower acting efficiency in the combined grinding system can be reduced, the energy consumption of unit products can be effectively reduced, and the machine-hour output is improved; the pre-grinding performance of the CKP vertical mill is fully exerted, so that the aims of saving energy and reducing consumption are fulfilled.

Furthermore, the included angle C between the material stabilizing cone 2 and the grinding disc cover plate 3 is 20-30 degrees, which is strictly determined according to the feeding repose angle of the mixed material 7, and the included angle between the material stabilizing cone 2 and the grinding disc cover plate 3 cannot be too large, so that the material 7 cannot be isolated when passing through the material stabilizing device, meanwhile, the material 7 is properly stressed by mechanical force, the flow rate of the material 7 on the grinding disc 5 is proper, the formation of a material layer with stable thickness is facilitated, the work efficiency of the grinding machine is improved, and severe vibration cannot be caused; the angle can not be too small, the capacity of treating the material amount can be properly improved, partial materials 7 are prevented from flowing to the grinding disc 5 without passing through the effect of the material stabilizing cone 2, and a good material stabilizing effect is achieved. The included angle C is preferably two-thirds of the feed repose angle, and the design value is preferably C =25 degrees.

Preferably, the grinding disc cover plate 3 can be divided into two bodies, also can be divided into three bodies, and also can be divided into a plurality of bodies more than three bodies, so that the mounting is convenient.

The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. The utility model provides a surely material device of vertical mill, its characterized in that, including a plurality of homogenization boards (1), the ascending steady material awl (2) in summit, mill apron (3) and retaining ring (4), it is a plurality of homogenization board (1) is fixed uniformly on steady material awl (2) along the circular cone generating line direction of steady material awl (2), and the bottom of steady material awl (2) is installed on mill apron (3) through the threaded connection mode, and the outer fringe ring week of mill apron (3) sets firmly ascending retaining ring (4), and the bottom of steady material awl (2) is located retaining ring (4), and the bottom of steady material awl (2) is less than the height of retaining ring (4), and mill (5) are connected to the ring week of mill apron (3).

2. The vertical mill material stabilizing device according to claim 1, wherein the included angle between the material stabilizing cone (2) and the grinding disc cover plate (3) is 20-30 degrees.

3. The vertical mill material stabilizing device according to claim 1, wherein the retainer ring (4) and the grinding disc cover plate (3) are welded or integrally formed.

4. The vertical mill material stabilizing device according to claim 1, wherein the homogenizing plate (1) and the material stabilizing cone (2) are welded or integrally formed.

5. A vertical mill material stabilizing device according to claim 1, wherein the millstone cover plate (3) is divided into two bodies, or is divided into three bodies, or is divided into a plurality of bodies more than three bodies.