CN214554066U

CN214554066U - Stirring mill device for dispersing and grinding

Info

Publication number: CN214554066U
Application number: CN202022845395.9U
Authority: CN
Inventors: 许元虎; 樊佳冰; 汤忠达; 郑杭波
Original assignee: Zhejiang Zili Holding Co ltd
Current assignee: Zhejiang Zili Holding Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-11-02
Anticipated expiration: 2030-12-01

Abstract

The application discloses stirring mill device that dispersion was ground, stirring mill device include circulating device and vertical mill device, and vertical mill device includes shell, agitator and agitating unit, and agitator fixed connection is in the inside of shell, and agitating unit rotates with the shell top to be connected to agitating unit extends to the agitator in, and circulating device includes: a transfer pump with opposing inlet and outlet ports; one end of the first pipeline is communicated to the side wall of the stirring barrel, and the other end of the first pipeline is communicated with an inlet of the conveying pump; one end of the second pipeline is communicated with the outlet of the delivery pump, and the other end of the second pipeline is communicated with the bottom wall of the stirring barrel; one end of the third pipeline is communicated to the bottom wall of the stirring barrel, and the other end of the third pipeline is communicated with an inlet of the delivery pump; one end of the fourth pipeline is communicated with the outlet of the delivery pump, and the other end of the fourth pipeline is used as a discharge end; and the control valve group is mounted on each pipeline to switch the communication relation with the delivery pump. The stirring mill device enables the ground objects to be uniformly ground, and ensures continuous and stable production.

Description

Stirring mill device for dispersing and grinding

Technical Field

The application relates to the technical field of grinding equipment, in particular to a stirring mill device for dispersing grinding.

Background

The stirring mill is widely applied to the field of split grinding and dispersion, and the slurry is continuously ground by the stirring device and the ball milling medium, so that the raw materials in the slurry are ball-milled to the required particle size. Because the raw material powder of production ceramic granulation powder is various, in order to ensure stable performance of the granulation powder, the ball milling dispersion of different component raw materials must be uniform, the granularity is controllable, the conventional stirring mill generally utilizes the transverse stirring ball milling function of the stirring mill device, the mixing of the ground materials is insufficient, the grinding inside the ground materials is not uniform, and the stability controllability of different batches of products is poor. In the prior art, a vertical internal circulation mode of the ground material is also used, so that the ground material is subjected to vertical convection circulation in the process of transverse stirring and ball milling, and the mixing and ball milling of the ground material are uniform and controllable. The prior art all uses concurrently and grinds the thing and outwards pumps the structure, adopts staving bottom to go out thick liquid, and the thick liquid feed back mode is advanced on upper portion, and in the in-service use process, because the raw materials powder granule size that different manufacturers used is uneven, in the pump circulation in-process, the raw materials that contain large granule very easily causes staving bottom filter screen blocking phenomenon, can't ensure the continuous stability of production.

Disclosure of Invention

In order to solve the technical problem, the application discloses a stirring mill device which enables the ground objects to be uniformly ground and ensures continuous and stable production.

The utility model provides a stirring mill device that dispersion was ground, stirring mill device include circulating device and vertical mill device, and vertical mill device includes shell, agitator and agitating unit, and agitator fixed connection is in the inside of shell, and agitating unit rotates with the shell top to be connected to agitating unit extends to the agitator in, circulating device includes:

a transfer pump with opposing inlet and outlet ports;

one end of the first pipeline is communicated to the side wall of the stirring barrel, and the other end of the first pipeline is communicated with an inlet of the conveying pump;

one end of the second pipeline is communicated with the outlet of the delivery pump, and the other end of the second pipeline is communicated with the bottom wall of the stirring barrel;

one end of the third pipeline is communicated to the bottom wall of the stirring barrel, and the other end of the third pipeline is communicated with an inlet of the delivery pump;

one end of the fourth pipeline is communicated with the outlet of the delivery pump, and the other end of the fourth pipeline is used as a discharge end;

and the control valve group is mounted on each pipeline to switch the communication relation with the delivery pump.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the first pipeline is connected with the stirring barrel through the feeding port, and the first pipeline is fixed on a shell of the vertical mill device.

Optionally, a material passing opening is formed in the bottom wall of the stirring barrel, the second pipeline and the third pipeline are combined and then connected into the material passing opening, and a material discharging end is arranged on the fourth pipeline.

Optionally, the control valve set includes a first valve, a second valve and a third valve, which are provided on each corresponding pipeline.

Optionally, in a state that the stirring mill device is stirring, the first valve and the second valve are opened, the third valve and the discharge end are closed, and the ground material entering the delivery pump through the first pipeline enters the stirring barrel again through the second pipeline.

Optionally, in the discharging state of the stirring mill device, the third valve and the discharging end are opened, the first valve and the second valve are closed, and the ground material is discharged from the discharging end through the fourth pipeline.

Optionally, the stirring device comprises a stirring rod and a plurality of cross rods, and the cross rods are perpendicular to the stirring rod.

Optionally, a ball milling medium is placed in the stirring barrel, and the upper limit of the filling of the ball milling medium is half of the height of the stirring barrel.

Optionally, the distance between the feed port and the bottom of the stirring barrel is seventy percent of the height of the stirring barrel.

Optionally, the feed inlet and the material passing opening are provided with screens.

The utility model provides a stirring mill device through installing circulating device on vertical mill device, makes the bottom that the agitator can be carried from the top of agitator to the thing of grinding, both can prevent the cross grinding of thing of grinding, and the guarantee thing of grinding grinds evenly, also can prevent that filter screen blocking phenomenon from taking place, makes continuous steady operation of ability such as product production.

Drawings

FIG. 1 is a schematic view of a circulation apparatus;

FIG. 2 is a schematic structural view of a vertical mill;

fig. 3 is a schematic structural diagram of the stirring mill device.

The reference numerals in the figures are illustrated as follows:

100. a circulation device; 101. a delivery pump; 102. an inlet; 103. an outlet; 104. a first conduit; 105. a second conduit; 106. a third pipeline; 107. a fourth conduit; 108. a feed inlet; 109. a discharge end; 110. a first valve; 111. a second valve; 112. a third valve; 113. a material passing port;

200. a vertical mill device; 201. a housing; 202. a stirring barrel; 203. a stirring device; 204. a stirring rod; 205. a cross bar; 206. ball milling a medium; 207. screening a screen; 208. a cooling tube;

300. a stirring mill device.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-2, the application discloses a stirring mill device 300 for dispersed grinding, the stirring mill device 300 comprises a circulating device 100 and a vertical mill device 200, the vertical mill device 200 comprises a housing 201, a stirring barrel 202 and a stirring device 203, the stirring barrel 202 is fixedly connected inside the housing 201, the stirring device 203 is rotatably connected with the top end of the housing 201, and the stirring device 203 extends into the stirring barrel 202, the circulating device 100 comprises:

a delivery pump 101 with opposing inlet 102 and outlet 103;

a first pipe 104, one end of which is communicated with the side wall of the mixing tank 202, and the other end of which is communicated with the inlet 102 of the delivery pump 101;

a second pipe 105 having one end connected to the outlet 103 of the delivery pump 101 and the other end connected to the bottom wall of the mixing tank 202;

a third pipe 106, one end of which is communicated with the bottom wall of the mixing tank 202, and the other end of which is communicated with the inlet 102 of the delivery pump 101;

one end of the fourth pipeline is communicated with the outlet 103 of the conveying pump 101, and the other end of the fourth pipeline is used as a discharge end 109;

and a control valve group mounted to each pipe to switch a communication relationship with the delivery pump 101.

The vertical mill 200 is used for milling the milling objects with different grain diameters until the grain diameters meet the requirement;

the stirring barrel 202 is cylindrical with an opening at the upper end, two sides of the stirring barrel 202 are fixed with the shell 201 through fixing devices, so that the stirring barrel 202 is prevented from shaking violently, and the stirring barrel 202 is used for containing ground objects;

the grinding objects are ground through mutual collision with the stirring device 203;

the delivery pump 101 provides kinetic energy for circulating device 100, regulates and controls the relation of connection between each pipeline and delivery pump 101 through the control valve group, can carry the thing of grinding on agitator 202 top to agitator 202 diapire, makes the thing of grinding can carry out circulation ball-milling work, avoids the thing of grinding to grind the thin, makes the product particle diameter after grinding even, and stability and controllability are higher.

The first pipe 104 is connected with the mixing tank 202 and the housing 201 in such a way that the first pipe 104 is connected with the mixing tank 202 through the feed opening 108, and the first pipe 104 is fixed on the housing 201 of the vertical mill device 200. The first pipe 104 is used for conveying the ground material with a small particle size at the upper end of the stirring barrel 202 to the inlet 102 of the conveying pump 101. A cooling pipe 208 is arranged in the interlayer of the inner wall of the stirring barrel 202, so that the phenomenon that the temperature in the stirring barrel 202 is too high and the equipment is damaged in the grinding process is avoided. As a preferable scheme, the inner lining of the inner wall of the stirring barrel 202 is made of wear-resistant polyurethane material, so that the stirring barrel 202 is prevented from being damaged during the ball milling process and metal impurities are prevented from being introduced.

The grinded matter is conveyed into the stirring barrel 202 again through the material passing port 113, so that the circulating ball milling of the grinded matter is realized. The material passing opening 113 is formed in the bottom wall of the stirring barrel 202, the second pipeline 105 and the third pipeline 106 are combined and then connected to the material passing opening 113, and the fourth pipeline 107 is provided with a material discharging end 109. The ground material introduced into the delivery pump 101 is introduced into the material passing port 113 through the second pipe 105, and is returned to the agitation tank 202 again. The discharge end 109 is used to discharge the ground material from the agitator 202. As a preferred scheme, the inner walls of the pipelines are made of stainless steel materials, so that metal impurities are prevented from being introduced due to corrosion of the inner walls of the pipelines. The transfer pump 101 may be a slurry pump or a diaphragm pump.

The control valve group and each pipeline are arranged in a manner that the control valve group comprises a first valve 110, a second valve 111 and a third valve 112 which are arranged on each corresponding pipeline. The technician can change the valve switch on each pipeline to realize the switching between the two processes of circularly grinding the ground objects and discharging the ground objects out of the stirring barrel 202.

Referring to fig. 3, the operation of the circular grinding process is specifically performed by opening the first valve 110 and the second valve 111, closing the third valve 112 and the discharge end 109, and re-entering the ground material, which enters the delivery pump 101 through the first pipe 104, into the mixing tank 202 through the second pipe 105 in the mixing state of the mixing and grinding apparatus 300. Under the common acting force of the first pipeline 104 and the second pipeline 105 and the action of the self weight of the ground objects with different particle sizes, the content of the ground objects with fine particle sizes is higher as the ground objects in the stirring barrel 202 go to the upper layer, the grinding time of the ground objects with large particle sizes at the bottom is longer, over-grinding of the ground objects with fine particle sizes is avoided, the particle sizes of the ground objects are uniform, and the stability and controllability of the product are improved.

The procedure of discharging the ground material from the mixing tank 202 is specifically performed by opening the third valve 112 and the discharge end 109, closing the first valve 110 and the second valve 111, and discharging the ground material from the discharge end 109 through the fourth pipe 107 in the discharge state of the mixing and grinding apparatus 300. The ground material is discharged from the bottom wall of the stirring barrel 202, so that the ground material is prevented from remaining in the stirring barrel 202, and the ground material can be completely transferred to a designated device.

The stirring device 203 has a specific structure that the stirring device 203 comprises a stirring rod 204 and a plurality of cross bars 205, and the cross bars 205 are perpendicular to the stirring rod 204. The cross-bar 205 can promote the circulation of the grinding materials in up-and-down convection during the grinding process, so that the product is uniform and controllable. As a preferred scheme, the stirring device 203 is made of stainless steel, the outer lining of the stirring rod 204 is made of wear-resistant polyurethane, the outer lining of the cross rod 205 is made of a wear-resistant polyurethane sleeve, and the wear-resistant polyurethane sleeve is convenient to replace after being damaged.

In order to sufficiently grind the ground material, a ball milling medium 206 is placed in the agitation tank 202, and the upper limit of the filling of the ball milling medium 206 is one-half of the height of the agitation tank 202. Preferably, the ball milling media 206 is made of alumina or yttria-stabilized zirconia. If the amount of the ball milling media 206 in the agitator 202 is large, the grinding effect on the ground material is affected and the amount of the ground material put into the agitator 202 is reduced, so that the upper limit of the filling of the ball milling media 206 is set to be half the height of the agitator 202.

In order to transfer the fine particle size to the transfer pump 101 while securing the amount of the ground material. The feed opening 108 is seventy percent of the height of the agitator 202 from the bottom of the agitator 202.

For further screening of the ground material entering the feed pump 101, the feed opening 108 and the discharge opening 113 are provided with a screen 207. The gap between the screens 207 is smaller than the diameter of the article being milled, and the use of a circular milling operation avoids clogging of the screens. As an optimal scheme, the filter screen is made of high-molecular wear-resistant materials, and metal impurities are prevented from being introduced due to abrasion of the filter screen in the grinding process. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. The stirring mill device that dispersion was ground, the stirring mill device includes circulating device and vertical mill device, vertical mill device includes shell, agitator and agitating unit, agitator fixed connection be in the inside of shell, agitating unit with the shell top is rotated and is connected, and agitating unit extends to in the agitator, its characterized in that, circulating device includes:

a transfer pump with opposing inlet and outlet ports;

one end of the second pipeline is communicated with the outlet of the delivery pump, and the other end of the second pipeline is communicated to the bottom wall of the stirring barrel;

one end of the third pipeline is communicated to the bottom wall of the stirring barrel, and the other end of the third pipeline is communicated with an inlet of the conveying pump;

one end of the fourth pipeline is communicated with the outlet of the conveying pump, and the other end of the fourth pipeline is used as a discharge end;

2. The stirring mill device for dispersive grinding according to claim 1, wherein the first pipeline is connected with the stirring barrel through a feed port, and the first pipeline is fixed on a shell of the vertical mill device.

3. The stirring mill device for dispersing and grinding of claim 2, wherein a material passing opening is formed in the bottom wall of the stirring barrel, the second pipeline and the third pipeline are combined and then connected to the material passing opening, and a material discharging end is formed in the fourth pipeline.

4. The apparatus according to claim 1, wherein the set of control valves comprises a first valve, a second valve and a third valve, each valve being provided in a respective one of the conduits.

5. The agitator mill device for dispersive grinding according to claim 4, wherein in the agitation state of the agitator mill device, the first valve and the second valve are opened, the third valve and the discharge end are closed, and the ground material entering the delivery pump through the first pipe enters the agitator tank again through the second pipe.

6. The agitator mill device for dispersive grinding according to claim 5, wherein in a discharge state of the agitator mill device, the third valve and the discharge end are opened, the first valve and the second valve are closed, and the ground material is discharged at the discharge end through the fourth pipe.

7. The dispersion grinding agitator mill device of claim 1, wherein the agitator mill device comprises an agitator bar and a plurality of cross bars, the cross bars being perpendicular to the agitator bar.

8. The dispersion-grinding agitator mill according to claim 1, wherein a ball-milling medium is placed in the agitator tank, and the upper limit of the filling of the ball-milling medium is one-half of the height of the agitator tank.

9. The dispersion-grinding agitator mill of claim 2, wherein the distance between the feed port and the bottom of the agitator tank is seventy percent of the height of the agitator tank.

10. The agitator mill device for dispersion grinding of claim 3, wherein the feed opening and the discharge opening are provided with a screen.