A discharge device for an ultrafine grinding mill

Abstract

This utility model belongs to the field of grinding mill technology, specifically a discharge device for an ultrafine grinding mill, including a discharge assembly. The discharge assembly includes a discharge pipe and a screen. A connecting sleeve is fixedly installed at the bottom of the discharge pipe, and a drive motor is installed at the bottom of the connecting sleeve. The output shaft of the drive motor passes through the interior of the connecting sleeve and is fitted with a rotating shaft. The top of the rotating shaft passes through the interior of the discharge pipe and is fitted with a spiral auger. A connecting shaft is fixedly installed at the top of the rotating shaft, and a material-pushing rod is installed at the top of the connecting shaft and passes through the top of the screen. The drive motor drives the rotating shaft and the connecting shaft to rotate together. The connecting shaft drives the material-pushing rod to rotate, causing the ground particles to be pushed off the screen and fall. Simultaneously, the rotating shaft drives the spiral auger to rotate inside the discharge pipe, conveying the ground particles falling off the screen into an inclined discharge cylinder for discharge, achieving the effect of pushing the ground particles out.

Description

Technical Field

[0001] This utility model belongs to the field of grinding machine technology, specifically a discharge device for an ultrafine grinding mill. Background Technology

[0002] An ultrafine grinding mill is a specialized piece of equipment designed specifically for grinding materials to an ultrafine particle size. It is widely used in new materials, pharmaceuticals, chemicals, food, and mining industries. There are various types of ultrafine grinding mills. When grinding harder materials, a method that reduces the gap between the grinding disc wall and the grinding rollers is typically employed.

[0003] After the material is ground into fine powder particles using an ultrafine mill, the fine powder particles will flow out from the discharge port of the ultrafine mill. However, the finer the particles are ground, the larger the specific surface area and the higher the surface energy. The electrostatic force and other adsorption forces between the particles are much greater than their own weight, making them easy to attract each other and form agglomerates. The actual particle size of the agglomerates is larger than that of individual fine particles, which will exceed the screen aperture of the ultrafine mill discharge port and cause blockage of the ultrafine mill discharge port.

[0004] Therefore, a discharge device for an ultrafine grinding mill is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and address the problems of existing equipment, this utility model proposes a discharge device for an ultrafine grinding mill.

[0006] The technical solution adopted by this utility model to solve its technical problem is a discharge device for an ultrafine grinding mill, including a support frame, a grinding chamber installed on the top of the support frame, a grinding component installed inside the grinding chamber, a feed inlet and a discharge outlet respectively opened on the top and bottom of the grinding chamber, and a discharge component installed inside the discharge outlet.

[0007] The discharge assembly includes a discharge pipe fixedly installed at the bottom of the discharge port and a screen installed inside the discharge port. A connecting sleeve is fixedly installed at the bottom of the discharge pipe, and a drive motor is installed at the bottom of the connecting sleeve. The output shaft of the drive motor passes through the inside of the connecting sleeve and is fitted with a rotating shaft. A spiral auger is installed at the top of the rotating shaft, which passes through the inside of the discharge pipe. A connecting shaft is fixedly installed at the top of the rotating shaft, and a feeding rod is installed at the top of the connecting shaft, which passes through the top of the screen.

[0008] Preferably, the screen is arc-shaped, the bottom of the feeding rod is arc-shaped, and the bottom of the feeding rod is attached to the top of the screen.

[0009] Preferably, an inclined discharge cylinder is fixedly installed on the outer surface of the discharge pipe for discharging the grinding particles conveyed by the auger.

[0010] Furthermore, a baffle is provided at the bottom of the connecting sleeve and the discharge pipe to prevent grinding particles from falling into the interior of the connecting sleeve, and the inclined discharge cylinder is connected to the discharge pipe.

[0011] Preferably, the grinding assembly includes a second drive motor installed on the left side of the grinding chamber and a first grinding block fixedly installed on the inner wall of the grinding chamber. The output shaft of the second drive motor passes through the interior of the grinding chamber and is fitted with a rotating roller. A second grinding block is fixedly installed on the outer surface of the rotating roller.

[0012] Preferably, there are multiple first grinding blocks and multiple second grinding blocks, which are arranged in a circumferential array on the inner wall of the grinding chamber and the outer surface of the rotating roller, respectively.

[0013] Preferably, the feeding rod is located inside the grinding chamber and is used to move the ground material particles.

[0014] Furthermore, the arc shape at the bottom of the feeding rod matches the arc shape at the top of the screen, which can actuate the grinding particles to fall off the screen.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model uses a drive motor to rotate a rotating shaft and a connecting shaft together. The connecting shaft drives a feeding rod to rotate, causing the ground particles to fall off the screen. At the same time, the rotating shaft drives a spiral auger to rotate inside the discharge pipe, conveying the ground particles falling off the screen to the inclined discharge cylinder for discharge. This achieves the effect of agitating and discharging the ground particles. The feeding rod at the top of the screen can break up clumps of particles, preventing particles from clumping and blocking the discharge port.

[0017] 2. In this utility model, when larger particles cannot fall off the screen, the larger particles can be pushed off the screen and onto the second grinding block by the material pusher. The first grinding block can rotate to grind the larger particles again, thus achieving the effect of pushing the larger grinding particles apart and re-grinding them. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the discharge pipe structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the grinding assembly structure of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the diagram;

[0023] Figure 5 This is a schematic diagram of the material discharge component structure of this utility model;

[0024] Figure 6 This utility model Figure 5 A magnified structural diagram at point B in the diagram.

[0025] Legend:

[0026] In the diagram: 1. Support frame; 11. Grinding chamber; 12. Feed inlet; 13. Discharge outlet; 2. Grinding assembly; 201. Drive motor II; 202. First grinding block; 203. Rotating roller; 204. Second grinding block; 3. Discharge assembly; 301. Discharge pipe; 302. Screen; 303. Connecting sleeve; 304. Drive motor I; 305. Rotating shaft; 306. Spiral auger; 307. Connecting shaft; 308. Feeding rod; 4. Inclined discharge cylinder. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 As shown, a discharge device for an ultrafine mill includes a support frame 1, a grinding chamber 11 is installed on the top of the support frame 1, a grinding component 2 is installed inside the grinding chamber 11, and a feed inlet 12 and a discharge outlet 13 are respectively opened at the top and bottom of the grinding chamber 11, and a discharge component 3 is provided inside the discharge outlet 13.

[0029] Through the above technical solution, the grinding chamber 11 is fixed on the top of the support frame 1. The grinding chamber 11 is set in a disc shape. The discharge port 13 and the inlet port 12 are opened at the top and bottom of the grinding chamber 11, respectively. The material to be ground can be put into the interior of the grinding chamber 11 and ultra-finely ground by the grinding component 2. The ground material is discharged from the discharge port 13 through the discharge component 3, which can avoid the ground material from clogging the discharge port 13.

[0030] First, considering how the ground particles are discharged from the grinding chamber 11, refer to... Figures 3-6 The specific structure of the discharge assembly 3 is disclosed. The discharge assembly 3 includes a discharge pipe 301 fixedly installed at the bottom of the discharge port 13 and a screen 302 installed inside the discharge port 13. A connecting sleeve 303 is fixedly installed at the bottom of the discharge pipe 301. A drive motor 304 is installed at the bottom of the connecting sleeve 303. The output shaft of the drive motor 304 passes through the inside of the connecting sleeve 303 and a rotating shaft 305 is installed. A spiral auger 306 is installed at the top of the rotating shaft 305 and passes through the inside of the discharge pipe 301. A connecting shaft 307 is fixedly installed at the top of the rotating shaft 305 and a feeding rod 308 is installed at the top of the connecting shaft 307 and passes through the top of the screen 302.

[0031] The screen 302 is curved, and the bottom of the push rod 308 is also curved, with the bottom of the push rod 308 fitting against the top of the screen 302.

[0032] An inclined discharge cylinder 4 is fixedly installed on the outer surface of the discharge pipe 301 for discharging the grinding particles conveyed by the spiral auger 306.

[0033] Through the above technical solution, a discharge pipe 301 is installed at the bottom of the discharge port 13, so that the inclined discharge cylinder 4 can be fixedly installed on the outer surface of the discharge pipe 301 to discharge the grinding material flowing out of the discharge port 13. The ground material will clump and block the discharge port 13. The connecting sleeve 303 is fixedly installed at the bottom of the discharge pipe 301, and then the drive motor 304 can be installed at the bottom of the connecting sleeve 303. The output shaft of the drive motor 304 can pass through the inside of the connecting sleeve 303 and connect to the rotating shaft 305. The top of the rotating shaft 305 passes through the inside of the discharge pipe 301, and a spiral auger 306 is installed on the outer surface of the rotating shaft 305 inside the discharge pipe 301. When the drive motor 304 is powered on and started, it can drive the rotating shaft 305 and the spiral auger 306 to rotate inside the discharge pipe 301, thus discharging the arc-shaped screen 3. 02 is installed on the top of the inner wall of the discharge port 13, so that the screen 302 is consistent with the arc of the inner wall of the grinding chamber 11. A connecting shaft 307 is fixedly installed on the top of the rotating shaft 305. The top of the connecting shaft 307 passes through the screen 302 and extends into the interior of the grinding chamber 11, so that the material-pushing rod 308 can be fixedly installed on the outer surface of the connecting shaft 307. Thus, the material-pushing rod 308 is located inside the grinding chamber 11. When the grinding component 2 grinds the material, the ground particles will fall to the top of the screen 302 at the discharge port 13. By rotating the material-pushing rod 308, the ground particles can be pushed off the screen 302, so that the spiral auger 306 can output the ground particles into the inclined discharge cylinder 4 to flow out, achieving the effect of pushing the ground particles out. The material-pushing rod 308 at the top of the screen 302 can break up the clumped particles and prevent the particles from clogging the discharge port 13.

[0034] Secondly, considering the issue of how to perform ultrafine grinding of materials, please refer to... Figure 3 and Figure 5 The specific structure of the grinding assembly 2 is disclosed. The grinding assembly 2 includes a second drive motor 201 installed on the left side of the grinding chamber 11 and a first grinding block 202 fixedly installed on the inner wall of the grinding chamber 11. The output shaft of the second drive motor 201 passes through the interior of the grinding chamber 11 and a rotating roller 203 is installed thereon. A second grinding block 204 is fixedly installed on the outer surface of the rotating roller 203.

[0035] Multiple first grinding blocks 202 and multiple second grinding blocks 204 are provided, and the multiple first grinding blocks 202 and multiple second grinding blocks 204 are respectively located on the inner wall of the grinding chamber 11 and the outer surface of the rotating roller 203 in a circumferential array.

[0036] Through the above technical solution, the second drive motor 201 is installed on the left side of the grinding chamber 11. The drive motor 201 is fixed to the outer wall of the grinding chamber 11 by a fixing component. The output shaft of the drive motor 201 passes through the interior of the grinding chamber 11 and is connected to the rotating roller 203. Multiple second grinding blocks 204 are installed on the outer surface of the rotating shaft 305. Multiple first grinding blocks 202 are installed on the inner wall of the grinding chamber 11. A suitable gap is set between the second grinding blocks 204 and the first grinding blocks 202. When the drive motor 201 is powered on, it drives the rotating roller 203 to rotate. The material introduced into the grinding chamber 11 will be ground by the first grinding blocks 202 and the rotating second grinding blocks 204, so as to achieve the effect of grinding the material into ultrafine particles.

[0037] Finally, considering the question of how the feeding rod 308 works with the second grinding block 204 inside the grinding chamber 11, please refer to... Figure 4 and Figure 6 The material-pushing rod 308 is located inside the grinding chamber 11 and is used to agitate the ground material particles.

[0038] With the above technical solution, the feeding rod 308 is set at the bottom of the grinding chamber 11. The first grinding block 202 is not set at the discharge port 13 of the grinding chamber 11. The feeding rod 308 and the first grinding block 202 are at the same height. The rotation of the feeding rod 308 will not affect the rotation of the rotating roller 203 and the second grinding block 204. After the material is ground, some larger particles will fall onto the screen 302. The larger particles cannot fall off the screen 302. The feeding rod 308 can push the larger particles off the screen 302 and push them to the second grinding block 204. The rotation of the first grinding block 202 can grind the larger particles again, achieving the effect of pushing the larger grinding particles aside and re-grinding them.

[0039] In summary, the working principle of this utility model is as follows:

[0040] When grinding materials, the second drive motor 201 is powered on and starts to drive the rotating roller 203 to rotate. The materials fed into the grinding chamber 11 through the feed inlet 12 are ground by the first grinding block 202 and the rotating second grinding block 204 to achieve the effect of grinding the materials into ultrafine particles.

[0041] After the grinding component 2 grinds the material, the ground particles fall to the top of the screen 302 at the discharge port 13. When the power is turned on, the drive motor 304 starts working. The drive motor 304 drives the rotating shaft 305 and the connecting shaft 307 to rotate together. The connecting shaft 307 drives the material-pushing rod 308 to rotate, which pushes the ground particles to fall off the screen 302. At the same time, the rotating shaft 305 drives the spiral auger 306 to rotate inside the discharge pipe 301, which transports the ground particles falling from the screen 302 to the inclined discharge cylinder 4 and flows out, achieving the effect of pushing the ground particles to discharge. The material-pushing rod 308 at the top of the screen 302 can break up the clumps of particles, preventing the particles from clogging the discharge port 13.

[0042] When the feeding rod 308 rotates at the top of the screen 302, larger particles cannot fall off the screen 302. The feeding rod 308 can push the larger particles off the screen 302 and push them to the second grinding block 204. The first grinding block 202 can rotate to grind the larger particles again, achieving the effect of pushing the larger grinding particles apart and re-grinding them.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An outlet device of an ultrafine grinder, comprising a support frame (1), a grinding bin (11) is installed on the top of the support frame (1), characterized in that: The grinding chamber (11) is equipped with a grinding component (2). The top and bottom of the grinding chamber (11) are respectively provided with a feed inlet (12) and a discharge outlet (13). The discharge outlet (13) is equipped with a discharge component (3). The discharge assembly (3) includes a discharge pipe (301) fixedly installed at the bottom of the discharge port (13) and a screen (302) installed inside the discharge port (13). A connecting sleeve (303) is fixedly installed at the bottom of the discharge pipe (301). A drive motor (304) is installed at the bottom of the connecting sleeve (303). The output shaft of the drive motor (304) passes through the inside of the connecting sleeve (303) and a rotating shaft (305) is installed. A spiral auger (306) passes through the inside of the discharge pipe (301) and a connecting shaft (307) is fixedly installed at the top of the rotating shaft (305). A feeding rod (308) passes through the top of the connecting shaft (307) and a feeding rod (308) is installed at the top of the screen (302).

2. A discharge device for an ultra-fine grinder as claimed in claim 1, characterized in that: The screen (302) is arc-shaped, and the bottom of the push rod (308) is arc-shaped, with the bottom of the push rod (308) attached to the top of the screen (302).

3. A discharge device for an ultra-fine grinder as claimed in claim 2, characterized in that: An inclined discharge cylinder (4) is fixedly installed on the outer surface of the discharge pipe (301) for discharging the grinding particles conveyed by the spiral auger (306).

4. A discharge device for an attritor mill according to claim 1, wherein: The grinding assembly (2) includes a second drive motor (201) installed on the left side of the grinding chamber (11) and a first grinding block (202) fixedly installed on the inner wall of the grinding chamber (11). The output shaft of the second drive motor (201) passes through the interior of the grinding chamber (11) and a rotating roller (203) is installed thereon. A second grinding block (204) is fixedly installed on the outer surface of the rotating roller (203).

5. A discharge device for an ultra-fine grinder as claimed in claim 4, characterized in that: Multiple first grinding blocks (202) and multiple second grinding blocks (204) are provided, and the multiple first grinding blocks (202) and multiple second grinding blocks (204) are respectively located on the inner wall of the grinding chamber (11) and the outer surface of the rotating roller (203) in a circumferential array.

6. A discharge device for an attritor mill according to claim 1, characterized in that: The material-pushing rod (308) is located inside the grinding chamber (11) and is used to agitate the ground material particles.

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