Energy-saving ball mill

Abstract

The utility model relates to an energy-saving ball mill which comprises a barrel, a partition plate is arranged in the barrel and divides the barrel into a coarse grinding bin and a fine grinding bin, a sealing cover is sleeved at one end of the coarse grinding bin of the barrel, the sealing cover is rotatably connected with the barrel, a feeding port and a ventilation port are arranged on the sealing cover, the ventilation port is fixedly connected with a base, a discharging port is arranged at one end of the fine grinding bin, and a discharging port is arranged at the other end of the fine grinding bin. And the discharge port is rotationally connected with the base. According to the energy-saving ball mill, the sealing cover and the barrel body which are split are adopted, the sealing cover does not rotate along with the barrel body, the fixed feeding opening and the fixed air inlet are adopted, the ventilation quantity is guaranteed, continuous feeding production can be achieved, ventilation is kept, powder can be conveyed to the discharging opening, repeated grinding is avoided, and the overall production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to mining mechanical processing technology, in particular to an energy-saving ball mill. Background Art

[0002] The ball mill is a key equipment for crushing materials after they are broken. This type of grinding mill is a mill that is equipped with a certain number of steel balls as grinding media. It is widely used in cement, silicate products, new building materials, refractory materials, fertilizers, black and non-ferrous metal beneficiation, glass and ceramics and other production industries to grind various ores and other grindable materials in dry or wet manner. The ball mill is suitable for grinding various ores and other materials, and is widely used in mineral processing, building materials and chemical industries.

[0003] The existing dry ball mill has low electrical energy conversion efficiency. In layman's terms, it has low production efficiency and high power consumption, which makes the unit cost of powder production very high. The ball mill cannot screen the crushed finished product in time when it is working, resulting in repeated operation in the ball mill, which reduces production efficiency. Utility Model Content

[0004] The utility model aims to provide an energy-saving ball mill, which is used to solve the problem of repeated grinding and low production efficiency caused by untimely screening in continuous production of dry ball mills.

[0005] In order to solve the above problems, the utility model provides an energy-saving ball mill, including a cylinder, a partition plate is provided in the cylinder, the partition plate divides the cylinder into a coarse grinding chamber and a fine grinding chamber, a sealing cover is sleeved on one end of the coarse grinding chamber of the cylinder, the sealing cover is rotatably connected to the cylinder, a feeding port and a vent are provided on the sealing cover, the vent is fixedly connected to the base, a discharge port is provided at one end of the fine grinding chamber, and the discharge port is rotatably connected to the base.

[0006] The energy-saving ball mill provided by the utility model also has the following technical features:

[0007] Furthermore, an arc-shaped bracket is provided on the base, and a plurality of rotating rollers are provided on the bracket, and the rollers are rotatably connected to the cylinder.

[0008] Furthermore, the partition plate has two mesh plates, a rotating shaft is provided at the centers of the two mesh plates, and a fan-shaped eccentric pendulum is rotatably connected to the rotating shaft.

[0009] Furthermore, the fine grinding bin is provided with a grinding grate plate.

[0010] Furthermore, a motor is fixedly connected to the base, a driving gear is fixedly connected to the driving shaft of the motor, an external gear is fixedly connected to the cylinder, and the external gear is meshed with the driving gear.

[0011] Furthermore, a lining plate is provided on the inner wall of the cylinder, the lining plate of the coarse grinding bin is rough, and the lining plate of the fine grinding bin is smooth.

[0012] Furthermore, the ventilation opening is located at the center of the cover, and the feeding port is located above the ventilation opening.

[0013] The utility model has the following beneficial effects: the energy-saving ball mill described in the present application adopts a split cover and a cylinder, the cover does not rotate with the cylinder, and a fixed feed port and air inlet are adopted to ensure the ventilation volume and continuous feeding production. Maintaining ventilation can transport the powder to the discharge port to avoid repeated grinding, thereby improving the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric schematic diagram of an energy-saving ball mill according to an embodiment of the utility model;

[0015] Figure 2 It is a front sectional isometric view of the energy-saving ball mill according to an embodiment of the utility model;

[0016] Figure 3 It is a right side cross-sectional schematic diagram of an energy-saving ball mill according to an embodiment of the utility model.

[0017] (1- cylinder, 2- partition plate, 3- coarse grinding chamber, 4- fine grinding chamber, 5- cover, 6- feeding port, 7- vent, 8- base, 9- discharge port, 10- bracket, 11- roller, 12- discharge grate plate, 13- motor, 14- driving gear, 15- external gear, 16- lining plate, 21- mesh plate, 22- rotating shaft, 23- eccentric rotor) DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0019] like Figures 1 to 3 In the embodiment of the energy-saving ball mill of the utility model shown, the energy-saving ball mill includes a cylinder 1, a partition plate 2 is provided in the cylinder 1, the partition plate 2 divides the cylinder 1 into a coarse grinding bin 3 and a fine grinding bin 4, the cylinder 1 is provided with a cover 5 at one end of the coarse grinding bin 3, the cover 5 and the cylinder 4 are rotatably connected, a feeding port 6 and a vent 7 are provided on the cover 5, the vent 7 is fixedly connected to a base 8, a discharge port 9 is provided at one end of the fine grinding bin 4, and the discharge port 9 is rotatably connected to the base 8.

[0020] Specifically, the material to be ground is fed into the coarse grinding bin 3 in the cylinder 4 from the feed port 6, and the cylinder 4 is rotated. As the cylinder 4 rotates, the grinding balls in the coarse grinding bin 3 collide and grind with the material, and pressurized gas is introduced into the vent 7. The pressurized gas blows the dust particles raised by the rotation of the cylinder 1 toward the partition plate 2. The partition plate 2 prevents large particles from entering the fine grinding bin 4. The particles entering the fine grinding bin 4 fall into the fine grinding bin 4 for continued grinding due to the reduced wind force, and the small particles are discharged from the discharge port 9 with the gas. The ground particles in the fine grinding bin 4 are raised when the cylinder 4 rotates and are discharged from the discharge port 9 with the wind force. Since the vent 7 and the feed port 6 are independent of each other and do not need to rotate with the cylinder 1, the feeding and ventilation can be continuously carried out, thereby ensuring the continuous operation of the ball mill and improving the production efficiency.

[0021] In one embodiment of the present application, preferably, an arc-shaped bracket 10 is provided on the base 8, and a plurality of rotating rollers 11 are provided on the bracket 10. The rollers 11 are rotatably connected to the cylinder 1. The bracket 10 is used to support the cylinder 1 when the cylinder 1 rotates. The rollers 11 reduce the resistance during rotation and reduce energy consumption.

[0022] In one embodiment of the present application, preferably, the partition plate 2 has two mesh plates 21, and a rotating shaft 22 is provided in the center of the two mesh plates 21. A fan-shaped eccentric pendulum 23 is rotatably connected to the rotating shaft 22. Since the purpose of the partition plate 2 is to allow the grinding balls and fine particles in the fine grinding chamber 4 to enter the coarse grinding chamber 3, and also to allow the gas and microparticles in the coarse grinding chamber 4 to pass through to avoid confusion, when the cylinder 1 rotates, the grinding balls and particles in the fine grinding chamber 4 are basically located in the lower half of the cylinder 4. The eccentric pendulum 23 is always located at the bottom of the cylinder 1 due to gravity when the cylinder rotates to block the mesh holes on the mesh plate 21, thereby preventing the grinding balls and particles in the fine grinding chamber 4 from leaking into the coarse grinding chamber 3 to affect the production efficiency and production effect.

[0023] In one embodiment of the present application, preferably, the fine grinding chamber 4 is provided with a grinding grate plate 12 for filtering particles that do not meet the product quality requirements and continue to be ground in the fine grinding chamber 4 .

[0024] In one embodiment of the present application, preferably, a motor 13 is fixedly connected to the base 8, a driving gear 14 is fixedly connected to the driving shaft of the motor 13, an external gear 15 is fixedly connected to the cylinder 1, and the external gear 15 is meshed with the driving gear 14 to drive the cylinder 1 to rotate.

[0025] In one embodiment of the present application, preferably, a lining 16 is provided on the inner wall of the cylinder 1, the lining 16 of the coarse grinding bin 3 is rough, and the lining 16 of the fine grinding bin 4 is smooth. In the coarse grinding bin 3, the material particles are relatively large, and the rough lining 16 can bring the grinding balls and the materials to a higher position for collision. The strong impact force can improve the crushing efficiency. The lining 16 of the fine grinding bin 4 is smooth to avoid bringing the finer particles to too high a position to separate from the grinding balls. The fine grinding bin 4 mainly relies on the friction between the grinding balls and the particles for grinding, making the material finer and more efficient.

[0026] In one embodiment of the present application, preferably, the vent 7 is located at the center of the cover 5, and the feed port 6 is located above the vent 7, which is used for the falling point and parabolic trajectory of the grinding balls and materials, and the height to which the fine particles are lifted is close to the center height of the cover 5, which is conducive to the gas carrying away the fine particles. The height of the feed port 6 can utilize the inertia of the material entering the cylinder 1 to throw the material to a position relatively in the middle of the coarse grinding bin 3, which is conducive to crushing.

[0027] In summary, the energy-saving ball mill in the above-mentioned embodiment of the utility model, specifically, puts the material to be ground into the coarse grinding bin 3 in the cylinder 1 from the feeding port 6, starts the motor 13 to drive the cylinder 1 to rotate, and as the cylinder 1 rotates, the grinding balls in the coarse grinding bin 3 collide and grind with the material. Affected by the roughness of the lining plate 16, the grinding balls and the material are brought higher and the collision force is greater. Pressurized gas is introduced into the vent 7, and the pressurized gas blows the dust particles raised by the rotation of the cylinder 1 toward the partition plate 2. The partition plate 2 prevents larger particles from entering the fine grinding bin 4. Some of the particles entering the fine grinding bin 4 are filtered out of the grate plate 12 and fall into the fine grinding bin 4 because the particles are too large to meet the production requirements. Grinding continues in the grinding chamber 4, and small particles are discharged from the discharge port 9 along with the gas. The ground particles in the fine grinding chamber 4 are lifted up when the cylinder 1 rotates, and are filtered by the discharge grate plate 12 with the wind and discharged from the discharge port 9. Since the ventilation port 7 and the feeding port 8 are independent of each other and do not need to rotate with the cylinder 1, the continuous feeding and ventilation can be guaranteed, which ensures the continuous operation of the ball mill and improves the production efficiency. The eccentric pendulum 23 between the two mesh plates 21 of the partition plate 2 is always located at the bottom of the cylinder 1 when the cylinder 1 rotates, preventing the grinding balls and particles in the fine grinding chamber 4 from entering the coarse grinding chamber 3, thereby preventing the grinding balls and particles in the fine grinding chamber 4 from leaking into the coarse grinding chamber 3 and affecting the production efficiency and production effect.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An energy-saving ball mill, characterized in that: It comprises a cylinder, wherein a partition plate is arranged in the cylinder, wherein the partition plate separates the cylinder into a coarse grinding chamber and a fine grinding chamber, wherein a cover is sleeved on one end of the coarse grinding chamber, wherein the cover is rotatably connected to the cylinder, wherein a feeding port and a vent are arranged on the cover, wherein the vent is fixedly connected to a base, wherein a discharge port is arranged at one end of the fine grinding chamber, wherein the discharge port is rotatably connected to the base; The partition plate has two mesh plates, and a rotating shaft is arranged at the centers of the two mesh plates, and a fan-shaped eccentric pendulum is rotatably connected to the rotating shaft.

2. The energy-saving ball mill according to claim 1, characterized in that: An arc-shaped bracket is arranged on the base, a plurality of rotating rollers are arranged on the bracket, and the rollers are rotatably connected with the cylinder.

3. The energy-saving ball mill according to claim 1, characterized in that: The fine grinding bin is provided with a grinding grate plate.

4. The energy-saving ball mill according to claim 1, characterized in that: The base is fixedly connected with a motor, the driving shaft of the motor is fixedly connected with a driving gear, the cylinder is fixedly connected with an external gear, and the external gear is meshed with the driving gear.

5. The energy-saving ball mill according to claim 1, characterized in that: A lining plate is arranged on the inner wall of the cylinder, the lining plate of the coarse grinding bin is rough, and the lining plate of the fine grinding bin is smooth.

6. The energy-saving ball mill according to claim 1, characterized in that: The ventilation opening is located at the center of the cover, and the feeding port is located above the ventilation opening.

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