Ball mill for fluorite powder production

Abstract

A ball mill for fluorite powder production comprises a ball milling assembly arranged on a fixed rack and used for conducting grinding machining on fluorite powder; and the anti-wall-sticking assembly is arranged in an inner cavity of the inner cylinder and automatically scrapes powder adhered to the inner side wall of the inner cylinder, so that the problems that in the prior art, when a common ball mill grinds fluorite powder, the fluorite powder is adhered to the inner wall of the ball mill, and the fluorite powder cannot be adhered to the inner wall of the ball mill due to the adhesion of the fluorite powder to the inner wall of the ball mill are solved. In order to solve the problems of insufficient subsequent grinding and insufficient discharging due to the fact that the ball-milling machine is provided with the anti-wall-sticking assembly, the anti-wall-sticking assembly and the ball-milling assembly are matched for use, so that the inner wall can be automatically scraped during grinding, an additional power source is not needed, normal grinding work is not hindered, and the service life of the ball-milling machine is prolonged. And scraping can be conducted in a manual control mode after shutdown, and the fluorite powder scraping device is convenient to use and particularly suitable for being used when fluorite powder is machined.

Description

Technical Field

[0001] This application relates to the field of fluorite ball mill technology, and in particular to a ball mill for producing fluorite powder. Background Technology

[0002] Fluorite powder, as an important industrial raw material, is widely used in metallurgy, chemical industry, building materials and other industries. A ball mill is one of the key pieces of equipment for preparing fluorite powder. It uses the rotation of the cylinder to drive the internal grinding balls to impact and grind the material, thereby achieving pulverization and refinement.

[0003] However, in the existing technology, when fluorite powder is ground by ball mill, the fluorite powder particles are very easy to adhere to the inner wall of the ball mill during the grinding process. The material layer adhering to the inner wall prevents the grinding balls from directly contacting the fresh material, which weakens the grinding impact and shearing effect, resulting in some materials not being fully ground, affecting the fineness and uniformity of the finished powder.

[0004] At the same time, after the grinding operation is completed, the material layer adhering to the inner wall is difficult to completely fall off by gravity or simple tilting, resulting in insufficient material feeding and a large amount of material remaining in the cylinder. This not only reduces the utilization rate of raw materials but also increases the loss.

[0005] In other words, existing technologies have the following technical problems: in ordinary fluorite powder ball mills, powder tends to adhere to the inner wall during the grinding process, leading to wear and tear. Therefore, a ball mill for fluorite powder production is proposed to address the above problems. Utility Model Content

[0006] This embodiment provides a ball mill for fluorite powder production to solve the problem that ordinary fluorite powder ball mills in the prior art easily cause powder to adhere to the inner wall during the grinding process, resulting in losses.

[0007] A ball mill for producing fluorite powder, comprising:

[0008] A fixed frame is placed on a base surface.

[0009] A ball mill assembly, mounted on a fixed frame, includes an outer cylinder, an inner cylinder, grinding balls, and a drive unit. The ball mill assembly is used to grind fluorite powder. The outer cylinder is horizontally mounted on the fixed frame, and the inner cylinder is fixedly disposed within its inner cavity. A feed inlet is located on the side wall of the inner cylinder, with one end extending beyond the outer cylinder wall. A plurality of grinding balls are disposed within the inner cavity of the inner cylinder. The drive unit drives the outer and inner cylinders to rotate.

[0010] An anti-sticking wall assembly is disposed in the inner cavity of the inner cylinder, and the anti-sticking wall assembly automatically scrapes off the powder adhering to the inner wall of the inner cylinder.

[0011] The ball mill for producing fluorite powder includes a drive unit comprising a connecting shaft, bearing supports, and a drive motor. Two connecting shafts are provided, each fixed at one end of the inner cylinder. The connecting shafts penetrate the inner wall of the outer cylinder and extend beyond it. The connecting shafts are fixedly connected to the outer cylinder. The two connecting shafts are rotatably connected to two bearing supports, which are fixedly mounted on the upper end of a fixed frame. A driven gear is fixedly connected to one end of each connecting shaft. A drive motor is fixedly connected to the upper end of the fixed frame. A driving gear is fixedly connected to the end of the output shaft of the drive motor. The driving gear and the driven gear mesh with each other.

[0012] The ball mill for producing fluorite powder includes an anti-sticking component comprising a rotating rod, a support plate frame, and a cross frame. Two rotating rods are provided, each passing through a connecting shaft and rotatably connected to it. A support plate frame is fixedly and vertically connected to one end of each of the two rotating rods. A cross frame is connected between the ends of the two support plate frames, and a scraping part is connected to the side wall of the cross frame.

[0013] The ball mill for producing fluorite powder includes a scraping section comprising a scraping plate and a wear-resistant layer. The wear-resistant layer is fixedly provided on the side wall of the scraping plate and is in contact with the inner wall of the inner cylinder.

[0014] The ball mill for producing fluorite powder has a support section between the scraping section and the cross frame. The support section includes a first support sleeve, a second support sleeve, and a support spring. Several first support sleeves are provided and are fixed at equal intervals to the side wall of the cross frame. A second support sleeve is slidably connected to the inner cavity of the first support sleeve. The end of the second support sleeve is fixedly connected to the scraping plate. A support spring is provided between the inner cavities of the first and second support sleeves and is in a pre-compressed state.

[0015] In the ball mill for producing fluorite powder, a rotating disk is fixedly connected to the outer end of one of the rotating rods. A connecting rod is vertically connected to the rotating rod between the rotating disk and the bearing support. The connecting rod and the support plate are parallel and extend in opposite directions. A counterweight is provided at the end of the connecting rod.

[0016] The ball mill for producing fluorite powder has multiple connecting columns spaced apart between the inner and outer cylinders.

[0017] The ball mill for producing fluorite powder has a sealing cover movably connected to the feed inlet.

[0018] In order to solve the problem in the prior art where ordinary ball mills tend to adhere to the inner wall of the ball mill when grinding fluorite powder, resulting in insufficient grinding and insufficient feeding, this application designs an anti-sticking component. By using the anti-sticking component in conjunction with the ball mill component, the inner wall can be automatically scraped during grinding without the need for an additional power source and without hindering normal grinding work. After the machine is stopped, scraping can also be performed manually, making it convenient to use and particularly suitable for processing fluorite powder. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0022] Figure 3 This is a front view structural diagram of the present utility model;

[0023] Figure 4 This is a front view of the internal structure of this utility model;

[0024] Figure 5 For this Figure 4 A magnified schematic diagram of the structure at point A.

[0025] In the picture:

[0026] 1. Fixed frame 1; 2. Ball mill assembly; 201. Outer cylinder; 202. Connecting shaft; 203. Bearing support; 204. Driven gear; 205. Drive motor; 206. Drive gear; 207. Inner cylinder; 208. Connecting column; 209. Grinding ball; 210. Feed port; 3. Anti-sticking assembly; 301. Rotating rod; 302. Support plate frame; 303. Horizontal frame; 304. First support sleeve rod; 305. Second support sleeve rod; 306. Support spring; 307. Scraper; 308. Wear-resistant layer; 309. Rotary disk; 310. Connecting rod; 311. Counterweight. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] Combined with appendix Figures 1-5 The ball mill for producing fluorite powder includes:

[0029] Fixed frame 1, fixed frame 1 is placed on the base surface.

[0030] A ball mill assembly 2 is mounted on a fixed frame 1. The ball mill assembly 2 includes an outer cylinder 201, an inner cylinder 207, grinding balls 209, and a drive unit. The ball mill assembly 2 is used to grind fluorite powder. The outer cylinder 201 is horizontally mounted on the fixed frame 1. The inner cylinder 207 is fixedly installed inside the inner cavity of the outer cylinder 201. Preferably, a wear-resistant liner is fixedly installed on the inner wall of the inner cylinder 207. A feed inlet 210 is provided on the side wall of the inner cylinder 207, with one end extending to the outside of the outer cylinder 201. A plurality of grinding balls 209 are installed inside the inner cavity of the inner cylinder 207. The drive unit drives the outer cylinder 201 and the inner cylinder 207 to rotate.

[0031] Anti-sticking component 3 is installed in the inner cavity of inner cylinder 207. The anti-sticking component automatically scrapes off the powder adhering to the inner wall of inner cylinder 207.

[0032] Through the above technical solution, by using the anti-stick wall component 3 and the ball mill component 2 together, the inner wall can be automatically scraped during grinding without the need for an additional power source and without hindering normal grinding work. After the machine is stopped, scraping can also be performed manually. It is convenient to use and is especially suitable for processing fluorite powder.

[0033] The drive unit includes a connecting shaft 202, a bearing support 203, and a drive motor 205. Two connecting shafts 202 are provided, each fixed at one end of the inner cylinder 207. The connecting shafts 202 penetrate the inner wall of the outer cylinder 201 and extend to the outside of the wall. The connecting shafts 202 are fixedly connected to the outer cylinder 201. The two connecting shafts 202 are rotatably connected to two bearing supports 203, which are fixedly mounted at the upper end of the fixed frame 1. A driven gear 204 is fixedly connected to one end of each connecting shaft 202. A drive motor 205 is fixedly connected to the upper end of the frame 1. A drive gear 206 is fixedly connected to the end of the output shaft of the drive motor 205. The drive gear 206 and the driven gear 204 mesh with each other. Through this technical solution, the drive motor 205 can drive the drive gear 206 to rotate, which in turn drives the driven gear 204 to rotate, thereby driving the connecting shaft 202 to rotate, which in turn drives the outer cylinder 201 and the inner cylinder 207 to rotate, so that the grinding balls 209 inside mix and roll with the material to achieve the function of ball milling.

[0034] The anti-stick wall assembly 3 includes a rotating rod 301, a support plate frame 302, and a cross frame 303. There are two rotating rods 301, which pass through two connecting shafts 202 and are rotatably connected to the connecting shafts 202. The support plate frame 302 is fixedly and vertically connected to one end of each of the two rotating rods 301. The cross frame 303 is connected between the ends of the two support plate frames 302. The side wall of the cross frame 303 is connected to a scraping part.

[0035] The scraping part includes a scraping plate 307 and a wear-resistant layer 308. The wear-resistant layer 308 is fixedly provided on the side wall of the scraping plate 307. The wear-resistant layer 308 is made of wear-resistant material, preferably wear-resistant rubber, polyurethane, wear-resistant engineering plastic or composite material. Its coefficient of friction is less than that of the inner wall material of the inner cylinder 207, and it has good elasticity and wear resistance to ensure effective scraping while reducing its own wear. The wear-resistant layer 308 is in contact with the inner wall of the inner cylinder 207.

[0036] A support section is provided between the scraping section and the cross frame 303. The support section includes a first support sleeve 304, a second support sleeve 305, and a support spring 306. Several first support sleeves 304 are provided, and the several first support sleeves 304 are fixed at equal intervals to the side wall of the cross frame 303. The second support sleeve 305 is slidably connected in the inner cavity of the first support sleeve 304. The end of the second support sleeve 305 is fixedly connected to the scraping plate 307. A support spring 306 is provided between the inner cavities of the first support sleeve 304 and the second support sleeve 305. The support spring 306 is in a pre-compressed state. Through this technical solution, by setting the support spring 306, the scraping plate 307 can always maintain a certain pressure on the inner wall of the inner cylinder 207. When the inner cylinder 207 rotates, the scraping plate 307 scrapes the inner wall of the inner cylinder 207, thereby scraping and cleaning the adhering powder, reducing adhesion, and facilitating subsequent material unloading.

[0037] One of the rotating rods 301 has a rotating disk 309 fixedly connected to its outer end. A connecting rod 310 is vertically connected to the rotating rod 301 between the rotating disk 309 and the bearing support 203. The connecting rod 310 is parallel to the support plate frame 302 and extends in opposite directions. A counterweight 311 is provided at the end of the connecting rod 310. With this technical solution, the setting of the counterweight 311 makes the connecting rod 310 keep vertically downward, so that the support plate frame 302 can keep vertically upward. This keeps the scraping part in the upper position inside the ball mill assembly 2, without hindering the rolling grinding of the grinding ball 209.

[0038] Multiple connecting columns 208 are provided at intervals between the inner cylinder 207 and the outer cylinder 201;

[0039] A sealing cover is movably connected to the feed port 210. The sealing cover is detachably and sealingly connected to the feed port 210 through a flange, threaded locking structure or quick-opening clamp structure to ensure the sealing of the inner cylinder 207 and the outer cylinder 201 during the grinding operation and prevent material leakage. With this technical solution, when it is necessary to load or unload materials, the sealing cover can be opened and the materials can be loaded or unloaded through the feed port 210.

[0040] In implementing the ball mill for fluorite powder production described in this utility model, the drive motor 205 is connected to a switch and a power supply respectively. During use, when the drive motor 205 drives the driving gear 206 and the driven gear 204, causing the outer cylinder 201 and inner cylinder 207 to rotate synchronously for ball milling, the anti-sticking component 3 is rotatably connected to the connecting shaft 202 via the rotating rod 301, and the counterweight 311 always has a downward tendency under gravity. This gravity is transmitted through the connecting rod 310, thereby keeping the support plate 302 vertically upward, thus keeping the scraping part on the ball mill. The upper part of the grinding assembly 2 does not hinder the rolling grinding of the grinding balls 209. The center of gravity of the entire anti-stick wall assembly 3 tends to remain stable. Therefore, during the rotation of the inner cylinder 207, the anti-stick wall assembly 3 will not rotate with the inner cylinder 207 under the action of gravity and the counterweight 311. Instead, it will maintain a fixed posture relative to the ground or only swing slightly. At this time, the inner wall of the rotating inner cylinder 207 moves relative to the fixed scraper 307. Under the continuous pressing force generated by the support spring 306, the scraper 307 scrapes and cleans the fluorite powder adhering to the inner wall of the inner cylinder 207.

[0041] The connecting rod 310 and the counterweight 311 are fixedly connected by a threaded connection, which facilitates disassembly later. When the machine is stopped, the operator can manually rotate the rotating disk 309, which will drive the rotating rod 301 to rotate, and then drive the support plate frame 302 to rotate, so that the scraping part rotates to scrape and clean the inner wall of the inner cylinder 207.

[0042] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ball mill for producing fluorite powder, characterized in that, include: A fixed frame (1) is placed on a base surface. A ball mill assembly (2) is mounted on a fixed frame (1). The ball mill assembly (2) includes an outer cylinder (201), an inner cylinder (207), grinding balls (209), and a drive unit. The ball mill assembly (2) is used to grind fluorite powder. The outer cylinder (201) is horizontally mounted on the fixed frame (1). The inner cylinder (207) is fixedly mounted in the inner cavity of the outer cylinder (201). A feed inlet (210) is provided on the side wall of the inner cylinder (207). One end of the feed inlet (210) extends to the outside of the wall of the outer cylinder (201). A plurality of grinding balls (209) are provided in the inner cavity of the inner cylinder (207). The drive unit drives the outer cylinder (201) and the inner cylinder (207) to rotate. Anti-sticking component (3) is disposed in the inner cavity of the inner cylinder (207). The anti-sticking component automatically scrapes off the powder adhering to the inner wall of the inner cylinder (207).

2. The ball mill for fluorite powder production according to claim 1, characterized in that: The drive unit includes a connecting shaft (202), a bearing support (203), and a drive motor (205). There are two connecting shafts (202), which are fixed at the center of both ends of the inner cylinder (207). The connecting shafts (202) penetrate the inner wall of the outer cylinder (201) and extend to the outside of the wall. The connecting shafts (202) are fixedly connected to the outer cylinder (201). The two connecting shafts (202) are rotatably connected to the two bearing supports (203). The bearing supports (203) are fixedly installed at the upper end of the fixed frame (1). A driven gear (204) is fixedly connected to one end of the connecting shaft (202). The drive motor (205) is fixedly connected to the upper end of the fixed frame (1). A driving gear (206) is fixedly connected to the end of the output shaft of the drive motor (205). The driving gear (206) and the driven gear (204) mesh with each other.

3. The ball mill for fluorite powder production according to claim 2, characterized in that: The anti-stick wall assembly (3) includes a rotating rod (301), a support plate frame (302), and a cross frame (303). There are two rotating rods (301), which pass through two connecting shafts (202) and are rotatably connected to the connecting shafts (202). The support plate frame (302) is fixedly and vertically connected to one end of each of the two rotating rods (301). A cross frame (303) is connected between the ends of the two support plate frames (302). A scraping part is connected to the side wall of the cross frame (303).

4. The ball mill for fluorite powder production according to claim 3, characterized in that: The scraping part includes a scraping plate (307) and a wear-resistant layer (308). The wear-resistant layer (308) is fixedly provided on the side wall of the scraping plate (307), and the wear-resistant layer (308) is in contact with the inner wall of the inner cylinder (207).

5. The ball mill for fluorite powder production according to claim 4, characterized in that: A support portion is provided between the scraping part and the cross frame (303). The support portion includes a first support sleeve (304), a second support sleeve (305), and a support spring (306). A plurality of first support sleeves (304) are provided, and the plurality of first support sleeves (304) are fixed at equal intervals on the side wall of the cross frame (303). A second support sleeve (305) is slidably connected in the inner cavity of the first support sleeve (304). The end of the second support sleeve (305) is fixedly connected to the scraping plate (307). A support spring (306) is provided between the inner cavities of the first support sleeve (304) and the second support sleeve (305). The support spring (306) is in a pre-compressed state.

6. The ball mill for fluorite powder production according to claim 5, characterized in that: One of the rotating rods (301) has a rotating disk (309) fixedly connected to its outer end. A connecting rod (310) is vertically connected to the rotating rod (301) between the rotating disk (309) and the bearing support (203). The connecting rod (310) and the support plate frame (302) are parallel and extend in opposite directions. A counterweight (311) is provided at the end of the connecting rod (310).

7. The ball mill for fluorite powder production according to claim 1, characterized in that: Multiple connecting columns (208) are provided at intervals between the inner cylinder (207) and the outer cylinder (201).

8. The ball mill for fluorite powder production according to claim 1, characterized in that: A sealing cap is movably connected to the feed port (210).

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