Separation structure and sand mill

Abstract

The utility model discloses a separation structure and sand mill relates to grinding technical field, wherein the separation structure comprises a rotating part and a separating part, the rotating part is rotatingly installed in the discharge port around the axis that extends along the vertical direction, the rotating part is internally provided with a discharge channel for the discharge of the slurry in the casing, and the separating part is installed in the discharge channel for the discharge of the slurry in the casing. And the separating part is arranged in the discharging channel and used for separating slurry from the grinding medium, so that by arranging the rotating part, the discharging channel can be conveniently arranged so as to discharge the slurry in the shell, the separating part can be driven to rotate, and meanwhile, by arranging the separating part, when the rotating part rotates, the slurry in the shell can be separated from the grinding medium. The separating piece can separate the slurry and the grinding medium in the discharging channel, and the grinding medium is prevented from flowing out of the shell along with the slurry.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, and particularly relates to a separation structure and a sand mill. Background Art

[0002] A sand mill, also known as a bead mill, is mainly a wet grinding device for chemical liquid products. It has the advantages of high production efficiency, strong continuity, low cost, high product fineness, etc. It is widely used in production industries such as cement, silicate products, new building materials, refractories, fertilizers, black and non-ferrous metal beneficiation, glass ceramics, coatings / inks / dyes / paints, new materials, pesticides, food additives, etc. At present, the grinding principle of a sand mill is to generate shear force, collision force, and crushing force on the grinding medium through the high-speed movement of the rotor to disperse, break, grind, depolymerize, homogenize, and emulsify the solid particle slurry in the fluid. Existing vertical sand mills generally separate the medium and the material through a sieve, but this method generally has problems such as easy blockage of the sieve. Once the sieve is blocked, it requires a large amount of manpower and working hours to clean and dredge, and the production efficiency of the production line cannot be guaranteed. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a separation structure and a sand mill, aiming to solve the problem that the sieve of the sand mill is easily blocked.

[0004] To achieve the above object, the separation structure proposed by the utility model is used for a sand mill, and the separation structure includes:

[0005] A rotating member rotatably installed at the discharge port around an axis extending in the up-down direction. A discharge channel is provided in the rotating member for discharging the slurry in the housing; and,

[0006] A separating member disposed in the discharge channel for separating the slurry from the grinding medium.

[0007] In an embodiment, the rotating member includes:

[0008] A main shaft rotatably installed at the discharge port around an axis extending in the up-down direction. The main shaft is provided with a first discharge flow channel extending along its axial direction; and,

[0009] A rotating body installed on the main shaft. The rotating body is provided with a second discharge flow channel extending in the radial direction of the main shaft, and the second discharge flow channel communicates with the first discharge flow channel;

[0010] Wherein, the discharge channel includes the first discharge flow channel and the second discharge flow channel;

[0011] The separating member is disposed in the second discharge flow channel.

[0012] In one embodiment, the separating member includes a plurality of blade portions disposed in the second discharge channel, and the plurality of blade portions are spaced apart circumferentially along the main shaft.

[0013] In one embodiment, two adjacent blade portions define a diversion section, wherein:

[0014] In a cross-section along the main shaft, the diversion section is inclined, and the inclination direction is inclined from the inside to the outside away from the rotation direction of the main shaft; and / or,

[0015] In a cross-section along the main shaft, the width of the diversion section is gradually increasing from the inside to the outside; and / or,

[0016] The diversion section is arc-shaped;

[0017] Wherein, the second discharge channel includes the diversion section.

[0018] In one embodiment, two separating members are provided, and the two separating members are spaced apart radially along the main shaft.

[0019] In one embodiment, two adjacent blade portions define a diversion section, and the two diversion sections of the two separating members include a first diversion section and a second diversion section located inside the first diversion section, wherein:

[0020] The width of the first diversion section is greater than the width of the second diversion section; and / or,

[0021] The first diversion section and the second diversion section are arranged in a staggered manner.

[0022] In one embodiment, the rotating body is detachably mounted on the main shaft.

[0023] In one embodiment, the separating structure further includes a plurality of anti-lifting portions mounted on the outer peripheral side of the rotating member, and the plurality of anti-lifting portions are spaced apart circumferentially along the rotating member.

[0024] In one embodiment, the anti-lifting portion is inclined to drive the grinding medium to flow downward.

[0025] The present utility model also provides a sand mill including the above separating structure.

[0026] In the technical solution of the present utility model, by providing the rotating member, it is convenient to set the discharge channel to discharge the slurry in the housing, and at the same time, it can drive the separating member to rotate. At the same time, by providing the separating member, when the rotating member rotates, the separating member can separate the slurry and the grinding medium in the discharge channel to prevent the grinding medium from flowing out of the housing with the slurry. Description of the Drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0028] Figure 1 Schematic structural diagram of an embodiment of a sand mill provided by the present invention;

[0029] Figure 2 Schematic structural diagram of another embodiment of a sand mill provided by the present invention;

[0030] Figure 3 Schematic structural diagram of yet another embodiment of a sand mill provided by the present invention;

[0031] Figure 4 Schematic structural diagram of an embodiment of the feeding structure of a sand mill provided by the present invention;

[0032] Figure 5 Schematic structural diagram of another embodiment of the feeding structure of a sand mill provided by the present invention;

[0033] Figure 6 Schematic structural diagram of an embodiment of the rotor structure of a sand mill provided by the present invention;

[0034] Figure 7 Schematic structural diagram of another embodiment of the rotor structure of a sand mill provided by the present invention;

[0035] Figure 8 For Figure 7 Cross-sectional structural diagram along the A-A direction in;

[0036] Figure 9 For Figure 7 Cross-sectional structural diagram along the B-B direction in;

[0037] Figure 10 For Figure 7 Cross-sectional structural diagram along the C-C direction in;

[0038] Figure 11 Schematic structural diagram of an embodiment of the separation structure of a sand mill provided by the present invention;

[0039] Figure 12 Schematic structural diagram of another embodiment of the feeding structure of a sand mill provided by the present invention;

[0040] Figure 13 Schematic diagram of another embodiment of the feeding structure of the sand mill provided by the present utility model;

[0041] Figure 14 Schematic diagram of still another embodiment of the feeding structure of the sand mill provided by the present utility model.

[0042] Explanation of the reference numerals in the drawings:

[0043] 100, sand mill; 1, outer shell; 11, feeding port; 12, discharging port; 2, feeding structure; 21, inner shell; 22, feeding channel; 221, first feeding flow channel; 222, second feeding flow channel; 23, feeding pipe; 231, guiding flow channel; 2311, first annular flow channel; 2312, second annular flow channel; 24, sleeve; 25, drain pipe; 26, annular partition; 27, protective layer; 28, stirring protrusion; 3, rotor structure; 31, rotating member; 311, rotating shaft; 312, rotating part; 3121, grinding channel; 3122, feeding hole; 3123, discharging hole; 313, upper rotor; 314, lower rotor; 32, driving member; 33, first stirring member; 34, second stirring member; 4, separation structure; 41, rotating member; 411, main shaft; 412, rotating body; 413, discharging channel; 4131, first discharging flow channel; 4132, second discharging flow channel; 42, separating member; 421, blade part; 422, guiding section; 43, anti-lifting part; 5, frame; 6, operation platform; 61, guardrail; 62, ladder.

[0044] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0046] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0048] A sand mill, also known as a bead mill, is mainly a wet grinding device for chemical liquid products, and has the advantages of high production efficiency, strong continuity, low cost, high product fineness, etc. It is widely used in production industries such as cement, silicate products, new building materials, refractories, fertilizers, black and non-ferrous metal ore dressing, glass ceramics, coatings / inks / dyes / paints, new materials, pesticides, food additives, etc. Currently, the grinding principle of a sand mill is to generate shear force, collision force, and crushing force on the grinding medium through the high-speed movement of the rotor, so as to disperse, break, grind, depolymerize, homogenize, and emulsify the solid particle slurry in the fluid. Existing vertical sand mills generally separate the medium and the material through a sieve mesh, but this method generally has problems such as easy blockage of the sieve mesh. Once the sieve mesh is blocked, it requires a large amount of manpower and working hours to clean and dredge, and the production efficiency of the production line cannot be guaranteed.

[0049] Based on this, the present utility model proposes a sand mill, aiming to solve the problem that the sieve mesh of the sand mill is easily blocked. Among them, Figures 1 to 14 is a schematic structural diagram of the sand mill provided by the present utility model.

[0050] Please refer to Figures 1 to 3 , in an embodiment of the present utility model, the sand mill 100 includes a housing 1, a rotor structure 3, a feeding structure 2, and a separation structure 4. The housing 1 has a feeding port 11 and a discharging port 12 distributed in the up-down direction, and the feeding port 11 is arranged below the discharging port 12. The rotor structure 3 is arranged inside the housing 1 to grind the slurry inside the housing 1. The feeding structure 2 is arranged inside the rotor structure 3 and corresponds to the feeding port 11 to convey the slurry along the first horizontal direction. The separation structure 4 is arranged inside the housing 1 and corresponds to the discharging port 12 to separate the slurry from the grinding medium.

[0051] The technical solution of the present utility model is to set the outer shell 1 for installing the rotor structure 3, the feeding structure 2 and the separating structure 4. Through the feeding port 11 and the discharging port 12 arranged vertically, the slurry can flow vertically. By setting the feeding structure 2 at the feeding port 11, the conveying direction of the slurry is changed so as to convey the slurry horizontally into the outer shell 1. By setting the rotor structure 3 in the outer shell 1, the grinding medium in the outer shell 1 can be agitated so that the grinding medium can grind the slurry. By setting the separating structure 4 at the discharging port 12, the slurry and the grinding medium can be separated to prevent the grinding medium from flowing out of the outer shell 1 with the slurry. By setting the feeding port 11 below the discharging port 12, the slurry can flow from bottom to top, so as to reduce the probability of the grinding medium flowing out of the outer shell 1 with the slurry, thus solving the problem that the grinding medium of the sand mill 100 is likely to flow out of the discharging port with the slurry.

[0052] It should be noted that the first horizontal direction can be a direction parallel to the horizontal direction or a direction with a certain angle to the horizontal direction, as long as it faces the horizontal direction, and the present utility model does not limit this. Exemplarily, the first horizontal direction can be the left - right direction, the front - back direction, or a direction that is inclined upward or downward from inside to outside.

[0053] In an embodiment of the present utility model, please refer to Figure 4 and Figure 5 , the feeding structure 2 includes an inner shell 21. The inner shell 21 forms a feeding channel 22. The inlet of the feeding channel 22 is arranged on the bottom wall of the inner shell 21, and the outlet is arranged on the side wall of the inner shell 21. In this way, the inlet of the feeding channel 22 is arranged on the bottom wall of the inner shell 21 to communicate with the feeding port 11, and the outlet of the feeding channel 22 is arranged on the side wall of the inner shell 21 so that the slurry in the feeding channel 22 can flow horizontally into the outer shell 1 to prevent the grinding medium in the outer shell 1 from blocking the feeding port 11.

[0054] Furthermore, a plurality of outlets of the feeding channel 22 are arranged at intervals along the circumferential direction of the inner shell 21. In this way, by setting a plurality of outlets, the slurry can flow out of the feeding channel 22 quickly, which helps to improve the feeding speed of the feeding structure 2.

[0055] Further, the feed channel 22 includes a first feed flow channel 221 and a second feed flow channel 222 communicating with the first feed flow channel 221. Both the first feed flow channel 221 and the second feed flow channel 222 extend in the up-and-down direction. Among them, the feed channel 22 includes the first feed flow channel 221 and the second feed flow channel 222. The inlet of the feed channel 22 includes the inlet of the first feed flow channel 221, and the outlet includes the outlet of the second feed flow channel 222. Thus, by providing the first feed flow channel 221 and the second feed flow channel 222, a high point is formed within the inner shell 21 to prevent the grinding medium within the outer shell 1 from entering the feed channel 22, thereby helping to avoid clogging of the feed channel 22 by the grinding medium.

[0056] It can be understood that there are various types of the feed channel 22. In one embodiment, the feed channel 22 includes a third feed flow channel extending in the up-and-down direction and a fourth feed flow channel extending in the horizontal direction. The fourth feed flow channel communicates with the third feed flow channel, such that the slurry first flows in the up-and-down direction and then in the horizontal direction, enabling the slurry to flow into the housing in the horizontal direction and into the fourth feed flow.

[0057] Further, the feed structure 2 further includes a feed pipe 23 disposed within the inner shell 21. The feed pipe 23 and the inner shell 21 jointly define a diversion flow channel 231. Among them, the first feed flow channel 221 includes the inner pipe of the feed pipe 23, and the second feed flow channel 222 includes the diversion flow channel 231. Thus, by providing the feed pipe 23 within the inner shell 21, the first feed flow channel 221 and the second feed flow channel 222 are respectively formed inside and outside the feed pipe 23, enabling the second feed flow channel 222 to be wound around the outside of the first feed flow channel 221, such that the first feed flow channel 221 and the second feed flow can be evenly distributed within the outer shell 1, which can not only make full use of the space of the inner shell 21 but also facilitate subsequent cooling of the feed channel 22.

[0058] It can be understood that there are various ways to form the first feed flow channel 221 and the second feed flow channel 222. In another embodiment, the feed structure 2 includes a feed pipe 23. The feed pipe 23 includes a first pipe section and a second pipe section that communicate with each other. Both the first pipe section and the second pipe section extend in the up-and-down direction. The feed channel 22 includes the first pipe section and the second pipe section. The inlet of the feed channel 22 includes the inlet of the first pipe section, and the outlet of the feed channel 22 includes the outlet of the second pipe section. Thus, by bending the feed pipe 23, the first feed flow channel 221 and the second feed flow are formed.

[0059] In an embodiment of the present utility model, the feeding structure 2 further includes a sleeve 24 disposed between the feeding pipe 23 and the inner shell 21, so that the diversion flow channel 231 forms a first annular flow channel 2311 and a second annular flow channel 2312 inside the first annular flow channel 2311. The first annular flow channel 2311 is used to communicate with a cooling water pipeline. Among them, the second feeding flow channel 222 includes the second annular flow channel 2312. Thus, by providing the sleeve 24, the first annular flow channel 2311 is formed with the inner shell 21, and the second annular flow channel 2312 is formed with the feeding pipe 23, so as to form the first annular flow channel 2311 for cooling water to flow outside the feeding channel 22 to cool the feeding channel 22, thereby helping to reduce the temperature of the inner shell 21.

[0060] Since the feeding structure 2 is arranged inside the rotor structure 3, the inlet and outlet of the first annular flow channel 2311 can only be arranged at the bottom of the outer shell 1, resulting in the cooling water in the inner shell 21 may directly flow out from the outlet of the annular flow channel, affecting the heat dissipation effect. Therefore, in this embodiment, please refer to Figure 5 The feeding structure 2 further includes a drain pipe 25 disposed at the outlet of the first annular flow channel 2311. The inlet of the drain pipe 25 extends upward to the upper end of the first annular flow channel 2311. Thus, by providing the drain pipe 25, it is convenient to make the cooling water in the first annular flow channel 2311 flow upward, preventing the cooling water from only flowing at the lower end of the inner shell 21, thereby helping to improve the heat dissipation effect of the feeding structure 2.

[0061] In an embodiment of the present utility model, the feeding structure 2 further includes a plurality of annular partitions 26 arranged in the first annular flow channel 2311. The plurality of annular partitions 26 are arranged at intervals in the vertical direction. Thus, by providing the plurality of annular partitions 26, the flow path of the cooling water is defined in the first annular flow channel 2311, so that the cooling water can flow along a preset path, thereby helping to improve the heat dissipation effect of the feeding structure 2. Further, two adjacent annular partitions 26 are arranged staggeredly, so that the cooling water can flow back and forth and bend upward in the first annular flow channel 2311, increasing the flow range of the cooling water and improving the heat dissipation effect of the cooling water.

[0062] In an embodiment of the utility model, a protective layer 27 is provided on the outer side of the inner shell 21. Since the feeding structure 2 is arranged inside the rotor structure 3, the grinding medium will impact the inner shell 21. Therefore, by providing the protective layer 27, the inner shell 21 can be protected. Further, the material of the protective layer 27 is a flexible material. In this way, by using the flexible material, the impact force of the grinding medium can be absorbed, which can not only reduce the noise of the sand mill 100 but also protect the inner shell 21. It can be understood that there are various flexible materials. For example, it can be rubber or polyurethane, etc. The utility model does not limit this.

[0063] In an embodiment of the utility model, stirring convex portions 28 are provided on the outer side wall of the inner shell 21. In this way, by providing the stirring convex portions 28, when the rotor structure 3 stirs the slurry inside the outer shell 1, the inner shell 21 can stir the slurry inside the rotor structure 3, which helps to improve the grinding quality of the sand mill 100.

[0064] In an embodiment of the utility model, please refer to Figure 3 、 Figure 6 and Figure 7 The rotor structure 3 includes a rotating member 31 and a driving member 32. The rotating member 31 is rotatably installed in the outer shell 1 around an axis extending in the up-down direction. The rotating member 31 is provided with a grinding channel 3121. The upper end of the grinding channel 3121 is provided with a feeding hole 3122, and the lower end of the grinding channel 3121 is provided with a discharging hole 3123. The driving member 32 is arranged at the upper end of the grinding channel 3121 to drive the slurry inside the grinding channel 3121 to flow downward. In this way, by providing the rotating member 31, the driving member 32 can be driven to rotate. By providing the feeding hole 3122, the slurry and the grinding medium can flow into the grinding channel 3121 from the upper end of the rotating member 31. By providing the discharging hole 3123, the slurry and the grinding medium can flow out of the grinding channel 3121 from the lower end of the rotating member 31. And by providing the driving member 32, the slurry and the grinding medium inside the grinding channel 3121 can be driven to flow downward, so that the slurry and the grinding medium can circulate inside and outside the rotating member 31, effectively increasing the grinding time of the slurry, which helps to improve the grinding quality of the sand mill 100.

[0065] In an embodiment of the present utility model, the rotating member 31 includes a rotating shaft 311 extending in the up-and-down direction and a rotating part 312 mounted to the rotating shaft 311. Among them, the feed hole 3122 and the discharge hole 3123 are provided in the rotating part 312. In this way, by providing the rotating shaft 311, it is not only convenient to install the rotating part 312, but also convenient for subsequent installation of the driving part, and it is also convenient to form the grinding channel 3121 in the rotating part 312. It can be understood that the rotating part 312 can be directly mounted on the rotating shaft 311, or can be spacedly mounted on the rotating shaft 311 through other structures, etc., and the present utility model does not limit this.

[0066] In an embodiment of the present utility model, please refer to Figure 7 and Figure 9 , the driving member 32 includes an impeller provided on the rotating shaft 311, and a plurality of the impellers are arranged at intervals in the circumferential direction of the rotating shaft 311. In this way, by providing the impeller, it is convenient to drive the slurry and the grinding medium in the grinding channel 3121 to flow downward. Of course, in other embodiments, the driving member 32 can also be a driving plate, etc., and the present utility model does not limit this. Further, the impeller can also be provided on the inner wall surface of the rotating part 312, and the present utility model does not limit this.

[0067] Further, there are various connection methods between the impeller and the rotating shaft 311. The impeller can be riveted to the rotating shaft 311, or can be screwed to the rotating shaft 311, etc., and the present utility model does not limit this. Specifically, in this embodiment, the impeller is detachably mounted on the rotating shaft 311 for easy maintenance or replacement.

[0068] In an embodiment of the present utility model, please refer to Figure 6 , Figure 7 and Figure 9 , the feed hole 3122 is inclined, and its inclination direction is inclined from the inside to the outside in the rotation direction of the rotating member 31. In this way, the inclination direction of the feed hole 3122 is the same as the rotation direction of the driving member 32, so that the slurry and the grinding medium can smoothly flow into the grinding channel 3121 and flow downward under the drive of the driving member 32.

[0069] In an embodiment of the present utility model, please refer to Figure 6 , Figure 7 and Figure 10, the discharge hole 3123 is inclined, and its inclination direction is inclined from the inside to the outside away from the rotation direction of the rotating member 31. In this way, the inclination direction of the discharge hole 3123 is opposite to the rotation direction of the driving member 32, so that the slurry and the grinding medium can be thrown out of the grinding channel 3121 under the action of centrifugal force, so as to prevent the slurry and the grinding medium from accumulating in the grinding channel 3121.

[0070] In an embodiment of the utility model, please refer to Figure 6 , a plurality of first stirring members 33 are arranged in a sheet shape on the outer side wall of the lower end of the rotating member 31. The plurality of first stirring members 33 are arranged at intervals along the circumferential direction of the rotating member 31 to drive the slurry in the housing 1 to flow upward. In this way, by arranging the plurality of first stirring members 33, when the rotating member 31 rotates, an upward driving force can be generated to drive the slurry and the grinding medium outside the rotating member 31 to flow upward, so that the slurry and the grinding medium can circulate inside and outside the rotating member 31, increasing the grinding time of the slurry and improving the grinding quality. Further, the first stirring member 33 is inclined so that the first stirring member 33 can generate an upward driving force to drive the slurry and the grinding medium to flow upward.

[0071] It can be understood that there are various connection methods between the first stirring member 33 and the rotating member 31. The first stirring member 33 can be fixedly installed on the rotating member 31 or detachably installed on the rotating member 31, etc. The utility model does not limit this. Further, the first stirring member 33 is screwed to the rotating member 31, which is convenient for loading and unloading the first stirring member 33 and adjusting the inclination angle of the first stirring member 33.

[0072] In an embodiment of the utility model, the rotor structure 3 further includes a plurality of second stirring members 34. The plurality of second stirring members 34 are arranged at intervals along the circumferential direction of the rotating member 31 on the outer side wall of the rotating member 31. In this way, when the rotating member 31 rotates, the slurry outside the rotating member 31 is stirred, which helps to improve the grinding efficiency of the rotor structure 3.

[0073] In an embodiment of the utility model, the rotor structure 3 further includes a plurality of second stirring members 34. The plurality of second stirring members 34 are arranged at intervals in the up and down direction on the outer side wall of the rotating member 31. In this way, when the rotating member 31 rotates, the slurry outside the rotating member 31 is stirred, which helps to improve the grinding efficiency of the rotor structure 3.

[0074] In an embodiment of the utility model, please refer to Figure 8, the rotor structure 3 further includes a plurality of second stirring members 34, and the plurality of second stirring members 34 are arranged at intervals along the circumferential direction of the rotating member 31 on the inner side wall of the lower end of the rotating member 31. In this way, when the rotating member 31 rotates, the slurry inside the rotating member 31 is stirred, which helps to improve the grinding efficiency of the rotor structure 3.

[0075] It can be understood that since the driving member 32 is provided at the upper end of the rotating member 31, if the second stirring member 34 is provided on the inner side wall of the upper end of the rotating member 31, it will interfere with the flow of the slurry inside the rotating member 31. Therefore, the second stirring member is provided on the inner side wall of the lower end of the rotating member 31 to avoid affecting the flow of the slurry inside the rotating member 31. Specifically, the shape of the second stirring member 34 has various types. For example, it can be circular, polygonal, etc. The present invention does not limit this. Further, there are various connection methods between the second stirring member 34 and the rotating member 31. The second stirring member 34 can be fixedly installed on the rotating member 31, or can be detachably installed on the rotating member 31, etc. The present invention does not limit this.

[0076] It should be noted that for the above three related technical features: "a plurality of the second stirring members 34 are arranged at intervals along the circumferential direction of the rotating member 31 on the outer side wall of the rotating member 31", "a plurality of the second stirring members 34 are arranged at intervals in the up-down direction on the outer side wall of the rotating member 31", "a plurality of the second stirring members 34 are arranged at intervals along the circumferential direction of the rotating member 31 on the inner side wall of the lower end of the rotating member 31", any one can be set, any two can be set, or all three can be set at the same time. Obviously, setting all three at the same time has a better effect.

[0077] In an embodiment of the present invention, both the first stirring member 33 and the second stirring member 34 include a stirring body. The stirring body includes a stirring skeleton and a covering portion covering the stirring skeleton. The material of the stirring skeleton is a metal material, and the material of the covering portion is a ceramic. In this way, by providing the stirring skeleton made of a metal material, the strength of the stirring body is increased, and by providing the covering portion made of a ceramic material, both the wear resistance of the stirring body can be increased and the resistance of the stirring body can be reduced.

[0078] In an embodiment of the present invention, the rotating member 31 includes an upper rotor 313 and a lower rotor 314 detachably installed on the upper rotor 313. In this way, by adopting the separately arranged upper rotor 313 and lower rotor 314, on the one hand, the size of the rotating member 31 can be reduced, which helps to reduce the manufacturing difficulty of the rotating member 31. On the other hand, the lower rotor 314 can be separately disassembled for installation on the feeding structure 2, which helps to reduce the assembly difficulty of the sand mill 100.

[0079] In an embodiment of the present utility model, please refer to Figures 11 to 14 , the separation structure 4 includes a rotating member 41 and a separating member 42. The rotating member 41 is rotatably installed at the discharge port 12 around an axis extending in the up-and-down direction. A discharge channel 413 is provided in the rotating member 41 for discharging the slurry in the housing 1. The separating member 42 is disposed in the discharge channel 413 for separating the slurry from the grinding medium. In this way, by providing the rotating member 41, it is convenient to provide the discharge channel 413 to discharge the slurry in the housing 1, and it can also drive the separating member 42 to rotate. At the same time, by providing the separating member 42, when the rotating member 41 rotates, the separating member 42 can separate the slurry and the grinding medium in the discharge channel 413 to prevent the grinding medium from flowing out of the housing 1 along with the slurry.

[0080] In an embodiment of the present utility model, the rotating member 41 includes a main shaft 411 and a rotating body 412. The main shaft 411 is rotatably installed at the discharge port 12 around an axis extending in the up-and-down direction. The main shaft 411 is provided with a first discharge flow channel 4131 extending along its axial direction. The rotating body 412 is installed on the main shaft 411. The rotating body 412 is provided with a second discharge flow channel 4132 extending along the radial direction of the main shaft 411. The second discharge flow channel 4132 communicates with the first discharge flow channel 4131. Among them, the discharge channel 413 includes the first discharge flow channel 4131 and the second discharge flow channel 4132. The separating member 42 is disposed in the second discharge flow channel 4132. In this way, by providing the main shaft 411 and the rotating body 412, it is convenient to provide the first discharge flow channel 4131 and the second discharge flow channel 4132 respectively, and reduce the manufacturing difficulty of the discharge channel 413.

[0081] In an embodiment of the present utility model, the separating member 42 includes a plurality of blade portions 421 disposed in the second discharge flow channel 4132. The plurality of blade portions 421 are spaced apart along the circumferential direction of the main shaft 411. In this way, by providing the plurality of blade portions 421, when the rotating body 412 rotates, the grinding medium in the second discharge flow channel 4132 can be thrown out of the rotating body 412 to separate the grinding medium from the slurry. Further, there are various connection methods between the blade portion 421 and the rotating body 412. The blade portion 421 can be installed on the rotating body 412 by screws or by bolts, etc. The present utility model does not limit this.

[0082] In an embodiment of the present utility model, please refer to Figure 13, two adjacent blade parts 421 define a diversion section 422. In a cross-section along the main shaft 411, the diversion section 422 is inclined, and its inclination direction is inclined from the inside to the outside away from the rotation direction of the main shaft 411. Among them, the second discharge channel 4132 includes the diversion section 422. In this way, the inclination direction of the diversion section 422 is opposite to the rotation direction of the rotating body 412, so that the grinding medium can be thrown out of the diversion section 422 under the action of centrifugal force to separate the slurry and the grinding medium.

[0083] In an embodiment of the present invention, please refer to Figure 13 , two adjacent blade parts 421 define a diversion section 422. In a cross-section along the main shaft 411, the width of the diversion section 422 is gradually increasing from the inside to the outside, so as to increase the resistance of the grinding medium flowing towards the middle of the rotating body 412, which is beneficial to delaying the flow of the grinding medium, reducing the flow velocity of the grinding medium, and enabling the grinding medium to be thrown out of the second discharge channel 413.

[0084] In an embodiment of the present invention, please refer to Figure 13 , two adjacent blade parts 421 define a diversion section 422. The diversion section 422 is arc-shaped, so as to reduce the resistance of the grinding medium flowing towards the periphery of the rotating body 412, and enable the grinding medium to be thrown out of the second discharge channel 413.

[0085] It should be noted that the above three related technical features: "the diversion section 422 is inclined", "in a cross-section along the main shaft 411, the width of the diversion section 422 is gradually increasing from the inside to the outside", and "the diversion section 422 is arc-shaped" can be set selectively, set in pairs or set at the same time. Obviously, the effect of setting at the same time is better.

[0086] In an embodiment of the present invention, two separating members 42 are provided, and the two separating members 42 are arranged at intervals in the radial direction of the main shaft 411. In this way, by providing the two separating members 42, the slurry in the second discharge channel 4132 is subjected to secondary separation, which helps to improve the separation effect of the separation structure 4.

[0087] In an embodiment of the present invention, please refer to Figure 13The two adjacent blade portions 421 define a guide section 422. The two guide sections 422 of the two separation members 42 include a first guide section 422 and a second guide section 422 located inside the first guide section 422. The width of the first guide section 422 is greater than the width of the second guide section 422, so as to increase the resistance of the grinding medium to flow toward the middle of the rotating body 412, which is beneficial to delaying the flow of the grinding medium and reducing the flow speed of the grinding medium, so that the grinding medium can be thrown out of the second discharge channel 413.

[0088] In one embodiment of the utility model, the two guide sections 422 of the two separation members 42 include a first guide section 422 and a second guide section 422 located inside the first guide section 422. The first guide section 422 and the second guide section 422 are staggered so that the outlet of the first guide section 422 and the inlet of the second guide section 422 can be staggered to prevent the first guide section 422 and the second guide section 422 from influencing each other, so that the first guide section 422 and the second guide section 422 can be separated independently.

[0089] It should be noted that the above three related technical features: "the width of the first guide segment 422 is greater than the width of the second guide segment 422", "the first guide segment 422 and the second guide segment 422 are staggered", can be set one by one or at the same time. Obviously, setting them at the same time will have a better effect.

[0090] In one embodiment of the present invention, there are multiple ways of connecting the main shaft 411 and the rotating body 412. The rotating body 412 can be riveted to the main shaft 411 or screwed to the main shaft 411, etc. The present invention does not limit this. Specifically, in this embodiment, the rotating body 412 can be detachably installed on the main shaft 411. In this way, a detachable connection is adopted to facilitate the loading and unloading of the rotating body 412, thereby facilitating maintenance or replacement.

[0091] It should be noted that there are many detachable connection methods, for example, it can be a screw connection method, it can also be a snap connection method, etc., and the present utility model does not limit this.

[0092] In one embodiment of the present invention, please refer to Figure 11 and Figure 14, the separation structure 4 further includes a plurality of anti-lifting parts 43 installed on the outer peripheral side of the rotating part 41. The plurality of anti-lifting parts 43 are arranged at intervals along the circumferential direction of the rotating part 41. In this way, by providing the plurality of anti-lifting parts 43, it is possible to prevent the slurry and the grinding medium from flowing upward into the separation structure 4, so as to prevent the grinding medium from accumulating above the rotor structure 3 and reduce the possibility of the grinding medium flowing out of the housing 1.

[0093] In an embodiment of the present invention, the anti-lifting part 43 is inclined to drive the grinding medium to flow downward. In this way, the anti-lifting part 43 is inclined to be able to generate a downward driving force when the rotating part 41 rotates, so as to drive the grinding medium to flow back downward and prevent the grinding medium from overflowing.

[0094] In an embodiment of the present invention, the sand mill 100 further includes a frame 5, and the housing 1 is installed on the frame 5. In this way, by providing the frame 5, the housing 1 can be placed upright.

[0095] In an embodiment of the present invention, the sand mill 100 further includes an operation platform 6 provided on the frame 5. The operation platform 6 is provided above the housing 1. In this way, by providing the operation platform 6, it is convenient for the staff to operate or repair the sand mill 100. Further, the sand mill 100 further includes a guardrail 61 provided on the operation platform 6 to prevent people from falling, thereby helping to improve the safety of the sand mill 100. Further, the sand mill 100 further includes a ladder 62 provided on the frame 5 to facilitate people to get on and off the operation platform 6.

[0096] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A separation structure for a sand mill, characterized in that: The separation structure comprises: A rotating member is rotatably mounted on a discharge port of the sand mill around an axis extending in a vertical direction, wherein a discharge channel is provided in the rotating member for discharging slurry in a housing of the sand mill; and a separator, disposed in the discharge channel, for separating the slurry from the grinding medium; The rotating member comprises: A main shaft is rotatably mounted on the discharge port around an axis extending in the vertical direction, and the main shaft is provided with a first discharge flow channel extending along its axial direction; and A rotating body, mounted on the main shaft, the rotating body being provided with a second discharge flow channel extending radially along the main shaft, the second discharge flow channel being connected to the first discharge flow channel; Wherein, the discharge channel includes the first discharge channel and the second discharge channel; The separation element is arranged in the second discharge channel.

2. The separation structure according to claim 1, characterized in that: The separator includes a plurality of blades disposed in the second discharge channel, and the plurality of blades are spaced apart along the circumferential direction of the main shaft.

3. The separation structure according to claim 2, characterized in that: Two adjacent blade portions define a flow guide section, wherein: In the cross section along the main axis, the guide section is arranged to be inclined, and the inclination direction is from inside to outside toward the rotation direction away from the main axis; and / or, In the cross section along the main axis, the width of the guide section is gradually increased from the inside to the outside; and / or, The guide section is arranged in an arc shape; Wherein, the second discharge flow channel includes the guide section.

4. The separation structure according to claim 1, characterized in that: Two separating members are provided, and the two separating members are spaced apart along the radial direction of the main shaft.

5. The separation structure according to claim 4, characterized in that: The separator includes a plurality of blade portions; The two adjacent blade portions define a guide section, and the two guide sections of the two separators include a first guide section and a second guide section located inside the first guide section, wherein: The width of the first guide section is greater than the width of the second guide section; and / or, The first guide section and the second guide section are staggered.

6. The separation structure according to claim 1, characterized in that: The rotating body is detachably mounted on the main shaft.

7. The separation structure according to claim 1, characterized in that: The separation structure further includes a plurality of anti-lift portions installed on the outer peripheral side of the rotating member, and the plurality of anti-lift portions are arranged at intervals along the circumferential direction of the rotating member.

8. The separation structure according to claim 7, characterized in that: The anti-lift portion is arranged in an inclined manner to drive the grinding medium to flow downward.

9. A sand mill, characterized in that: Comprising the separation structure according to any one of claims 1 to 8.

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