Powder grinding machine
By utilizing the grinding components and sieving structure of the powder grinding mill, the problem of agglomeration and clumping of granular materials in the spray drying process is solved, achieving particle uniformity and improving the processing quality of subsequent products.
Patent Information
- Application Number
- CN202423017586.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing technologies often result in granular materials produced by spray drying processes that are prone to clumping and agglomeration, leading to uneven particle size and affecting the processing quality of subsequent products.
A powder grinding mill is used, which, through the cooperation of the processing chamber and the grinding components, uses the outer grinding block to grind the granular material in conjunction with the first grinding wheel and the second grinding wheel. Combined with the screening of coarse and fine filter screens and further grinding, the uniformity of the particles is ensured.
This effectively prevents the clumping and agglomeration of granular materials, ensures uniform particle size, and improves the processing quality of subsequent products.
Smart Images
Figure CN223788597U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder technology, and more specifically to a powder grinding machine. Background Technology
[0002] Powder refers to the form of a discrete aggregate of solid particles. However, powder also possesses fluid properties: it has no specific shape and can flow and fly. Typically, spray drying equipment is used to disperse liquid materials into fine droplets, and the moisture is rapidly evaporated under the action of hot air to produce granular powder.
[0003] Existing technologies often result in clumping and agglomeration when producing granular materials through spray drying. This leads to uneven particle size and affects the processing quality of subsequent products. Utility Model Content
[0004] The purpose of this invention is to provide a powder grinding machine that, through the cooperation of the processing chamber and the grinding components, and the cooperation of the outer grinding block with the first grinding wheel and the second grinding wheel, grinds and breaks down the granular material leaking from the material feeding bracket, thereby preventing the granular material from clumping or agglomerating, ensuring that the granular material after spray drying has a uniform particle size, and improving the processing quality of subsequent products.
[0005] This utility model provides the following technical solution: a powder grinding mill, including a feed inlet, a shell fixedly connected to the top of the feed inlet, an inner cylinder fixedly installed on the top of the inner side of the shell, a processing chamber fixedly connected to the bottom of the shell, a guide top seat fixedly connected to the top of the processing chamber, and a discharge port fixedly connected to the bottom of the processing chamber.
[0006] The processing chamber includes a chamber body, a material leakage bracket is fixedly connected to the top of the inner side of the chamber body, and a grinding component is provided at the bottom of the material leakage bracket;
[0007] The grinding assembly includes a motor, the output shaft of which is fixedly connected to a rotating central shaft. A first grinding wheel and a second grinding wheel are fixedly connected to the top of the outer side of the rotating central shaft. A coarse filter screen is movably connected to the outer side of the rotating central shaft, and a fine filter screen is fixedly connected to the bottom of the rotating central shaft.
[0008] As a preferred technical solution of this utility model, a motor box is movably connected to the top of the material leakage bracket, an outer grinding block is fixedly connected to the middle of the inner wall of the chamber, and a circular hole is opened in the center of the material leakage bracket.
[0009] As a preferred technical solution of this utility model, the first grinding wheel and the second grinding wheel have the same outer diameter, and the outer sides of the first grinding wheel and the second grinding wheel are provided with teeth. The teeth of the first grinding wheel are located at the center of two adjacent teeth of the second grinding wheel, and the distance from the bottom of the coarse filter screen to the top of the fine filter screen is one millimeter.
[0010] As a preferred technical solution of this utility model, the sum of twice the thickness of the outer grinding block and the outer diameter of the first grinding wheel is the same as the inner diameter of the chamber. The top of the material leakage bracket is provided with leakage holes around the perimeter. The leakage holes of the material leakage bracket are arc-shaped, and the width of the leakage holes of the material leakage bracket is the same as the distance from the inner wall of the outer shell to the outer wall of the guide top seat.
[0011] As a preferred technical solution of this utility model, a bearing is provided at the connection between the rotating central shaft and the circular hole, a fixing ring is provided at the connection between the outer side of the coarse filter and the inner wall of the chamber, a bearing is provided at the connection between the coarse filter and the rotating central shaft, and a bearing is provided at the connection between the fine filter and the inner wall of the chamber.
[0012] As a preferred embodiment of this invention, the motor box is located at the center of the inner side of the guide top seat, and the top of the guide top seat is conical.
[0013] The beneficial effects of this utility model are:
[0014] 1. By cooperating with the processing chamber and the grinding components, the outer grinding block works in conjunction with the first and second grinding wheels to grind and break down the granular material leaking from the feed support, preventing the granular material from clumping or agglomerating, and ensuring that the granular material after spray drying has a uniform particle size.
[0015] 2. Through the cooperation of coarse and fine filters, the particles initially processed by the external grinding block and the first and second grinding wheels are screened and ground again. The fine filter is a standard particle size screening screen. Particles that cannot be directly discharged from the fine filter holes will be ground again under the rotation of the fine filter and the limitation of the coarse filter, reducing the particle size so that they can be discharged from the fine filter holes, making the discharged particles uniform and improving the processing quality of subsequent products. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the processing chamber in this utility model.
[0019] Figure 4This is a schematic diagram of the grinding component in this utility model.
[0020] Figure 5 This is a schematic diagram of the material leakage bracket in this utility model.
[0021] The attached figures are labeled as follows:
[0022] 1. Feed inlet; 2. Outer shell; 3. Inner cylinder; 4. Guide top seat; 5. Processing chamber; 501. Chamber body; 502. Material leakage bracket; 503. Motor box; 504. Round hole; 505. Outer grinding block; 6. Grinding assembly; 601. Motor; 602. Rotating central shaft; 603. First grinding wheel; 604. Second grinding wheel; 605. Coarse filter screen; 606. Fine filter screen; 7. Discharge port. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The spray drying equipment involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Reference Figures 1 to 5 This utility model provides a powder grinding machine, including a feed inlet 1, the feed inlet 1 is connected to the outer shell 2, an inner cylinder 3 is fixedly installed on the top of the inner side of the outer shell 2, a processing chamber 5 is fixedly connected to the bottom of the outer shell 2, a guide top seat 4 is fixedly connected to the top of the processing chamber 5, and a discharge port 7 is fixedly connected to the bottom of the processing chamber 5.
[0025] The processing chamber 5 includes a chamber body 501, and a material leakage bracket 502 is fixedly connected to the top of the inner side of the chamber body 501. A grinding component 6 is provided at the bottom of the material leakage bracket 502.
[0026] The grinding assembly 6 includes a motor 601, the output shaft of the motor 601 is fixedly connected to a rotating central shaft 602, a first grinding wheel 603 and a second grinding wheel 604 are fixedly connected to the top of the outer side of the rotating central shaft 602, a coarse filter screen 605 is movably connected to the outer side of the rotating central shaft 602, and a fine filter screen 606 is fixedly connected to the bottom of the rotating central shaft 602.
[0027] In a preferred embodiment, a motor box 503 is movably connected to the top of the material discharge bracket 502, an outer grinding block 505 is fixedly connected to the middle of the inner wall of the chamber 501, and a circular hole 504 is opened in the center of the material discharge bracket 502.
[0028] In a preferred embodiment, the first grinding wheel 603 and the second grinding wheel 604 have the same outer diameter, and the outer sides of the first grinding wheel 603 and the second grinding wheel 604 are provided with teeth. The teeth of the first grinding wheel 603 are located at the center of two adjacent teeth of the second grinding wheel 604. In the initial state, the teeth of the first grinding wheel 603 and the second grinding wheel 604 are staggered one by one, which can grind the particles in layers and ensure sufficient grinding. The distance from the bottom of the coarse filter screen 605 to the top of the fine filter screen 606 is one millimeter. The fine filter screen 606 is a standard particle size screening screen. Particles that cannot be directly discharged from the holes of the fine filter screen 606 will remain between the fine filter screen 606 and the coarse filter screen 605. Under the rotation of the fine filter screen 606 and the limitation of the coarse filter screen 605, they are ground again to reduce the particle size so that they can be discharged from the holes of the fine filter screen 606.
[0029] In a preferred embodiment, the sum of twice the thickness of the outer grinding block 505 and the outer diameter of the first grinding wheel 603 is the same as the inner diameter of the chamber 501. The motor 601 drives the rotating central shaft 602 to rotate, and the first grinding wheel 603 and the second grinding wheel 604 rotate together with it. When the outermost teeth of the first grinding wheel 603 and the second grinding wheel 604 come into contact with the surface of the outer grinding block 505, they crush the particles. The top of the material leakage bracket 502 is provided with leakage holes around its perimeter. The leakage holes of the material leakage bracket 502 are arc-shaped, and the width of the leakage holes of the material leakage bracket 502 is the same as the distance from the inner wall of the outer shell 2 to the outer wall of the guide top seat 4. The granular particles fall from the material leakage bracket 502 to the top of the grinding assembly 6 between the inner wall of the outer shell 2 and the outer side of the guide top seat 4.
[0030] In a preferred embodiment, a bearing is provided at the connection between the rotating central shaft 602 and the circular hole 504, a fixing ring is provided at the connection between the outer side of the coarse filter screen 605 and the inner wall of the chamber 501, a bearing is provided at the connection between the coarse filter screen 605 and the rotating central shaft 602, and a bearing is provided at the connection between the fine filter screen 606 and the inner wall of the chamber 501. While the fine filter screen 606 rotates and grinds the particles, it can also shake out the qualified particles stuck in the holes of the fine filter screen 606 by contacting the accumulated particles of different heights.
[0031] In a preferred embodiment, the motor box 503 is located at the center inside the guide top seat 4, and the top of the guide top seat 4 is conical to guide the particles and prevent material from accumulating on the top of the leakage bracket 502.
[0032] The working process of this utility model:
[0033] After spray drying, the material enters the inner cylinder 3 through the feed inlet 1. The granular material falls from the inner cylinder 3 through the guide top seat 4 and then through the material leakage bracket 502 to the top of the grinding assembly 6. In the initial state, the teeth of the first grinding wheel 603 and the second grinding wheel 604 are staggered. The motor 601 drives the rotating shaft 602 to rotate, and the first grinding wheel 603 and the second grinding wheel 604 rotate together with it. When the outermost teeth of the first grinding wheel 603 and the second grinding wheel 604 come into contact with the surface of the outer grinding block 505, they crush the particles. The ground particles continue to fall to the top of the coarse filter screen 605. When the rotating shaft 602 rotates, the coarse filter screen 605 remains relatively stationary. The fine filter screen 606 rotates together with the rotating shaft 602. The fine filter screen 606 is a standard particle size screening screen. Particles that cannot be directly discharged from the holes of the fine filter screen 606 will remain between the fine filter screen 606 and the coarse filter screen 605. Under the rotation of the fine filter screen 606 and the limiting of the coarse filter screen 605, they will be ground into fine particles again until they can be discharged from the holes of the fine filter screen 606.
[0034] Finally, the following points should be noted: First, in the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly, and can be mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.
[0035] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0036] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A powder grinder, comprising a feeding inlet (1), a connecting shell (2) of the feeding inlet (1), an inner cylinder (3) fixedly installed at the top of the inner side of the shell (2), characterized in that: The bottom of the shell (2) is fixedly connected with a processing bin (5), the top of the processing bin (5) is fixedly connected with a guide top seat (4), and the bottom of the processing bin (5) is fixedly connected with a discharge port (7). The processing bin (5) comprises a bin body (501), the top of the inner side of the bin body (501) is fixedly connected with a leakage support (502), and the bottom of the leakage support (502) is provided with a grinding assembly (6). The grinding assembly (6) comprises a motor (601), the output shaft of the motor (601) is fixedly connected with a rotating middle shaft (602), the top of the outer side of the rotating middle shaft (602) is fixedly connected with a first grinding wheel (603) and a second grinding wheel (604), the outer side of the rotating middle shaft (602) is movably connected with a coarse filter screen (605), and the bottom of the rotating middle shaft (602) is fixedly connected with a fine filter screen (606).
2. A powder mill according to claim 1, characterized in that: The top of the leakage support (502) is movably connected with a motor box (503), the middle of the inner wall of the bin body (501) is fixedly connected with an outer grinding block (505), and a circular hole (504) is formed in the center of the leakage support (502).
3. The powder grinder of claim 1, wherein: The outer diameters of the first grinding wheel (603) and the second grinding wheel (604) are the same, the outer sides of the first grinding wheel (603) and the second grinding wheel (604) are provided with teeth, the teeth of the first grinding wheel (603) are located at the centers of adjacent two teeth of the second grinding wheel (604), and the distance from the bottom of the coarse filter screen (605) to the top of the fine filter screen (606) is one millimeter.
4. A powder mill according to claim 2, wherein: The thickness of the outer grinding block (505) is twice the sum of the outer diameter of the first grinding wheel (603) and the inner diameter of the bin body (501), leakage holes are formed in the top of the leakage support (502), the leakage holes of the leakage support (502) are arc-shaped, and the width of the leakage holes of the leakage support (502) is the same as the distance from the inner wall of the shell (2) to the outer wall of the guide top seat (4).
5. The powder grinder of claim 2, wherein: Bearing is arranged at the connection between the rotating middle shaft (602) and the circular hole (504), a fixing ring is arranged at the connection between the outer side of the coarse filter screen (605) and the inner wall of the bin body (501), bearing is arranged at the connection between the coarse filter screen (605) and the rotating middle shaft (602), and bearing is arranged at the connection between the fine filter screen (606) and the inner wall of the bin body (501).
6. The powder grinder of claim 2, wherein: The motor box (503) is located at the center of the inner side of the guide top seat (4), and the top of the guide top seat (4) is conical.