Environmentally friendly high-dispersion low-smoke coal powder classification and collection production equipment

Abstract

This utility model provides an environmentally friendly high-dispersion, low-smoke coal powder grading and collection production device, relating to the field of coal powder production technology. The utility model includes a vertical grinding mill, characterized in that: a feed pipe is provided on one side of the vertical grinding mill, a discharge pipe is provided on one side of the vertical grinding mill, and a support is fixedly installed on the inner wall of the vertical grinding mill. A filter screen is rotatably installed between one side of the support and one side of the inner wall of the vertical grinding mill. This utility model, by incorporating a cleaning device, allows the drive mechanism to activate a striking rod within the U-shaped frame, which, in conjunction with a torsion spring, rotates intermittently, striking the surface of the filter screen at one end. This vibration dislodges the coal powder adhering to the filter screen, achieving a cleaning effect on the filter screen surface. This prevents the filter holes from becoming clogged, affecting the grading and filtration process, improving the filtration effect and efficiency, and ultimately increasing the coal powder processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pulverized coal production technology, and in particular to an environmentally friendly high-dispersion, low-smoke pulverized coal grading and collection production device. Background Technology

[0002] The coal powder grading and collection production device is a piece of equipment used for the grading and collection of coal powder. Its main function is to classify coal powder according to particle size. Through grading, screening and collection devices, coal powder that meets the specifications is separated and supplied to the coal powder needed in industrial production.

[0003] When using a vertical grinding mill to crush and classify high-dispersion low-smoke coal powder, the coal powder is fed into the mill through the feed pipe. The internal drive motor then drives the grinding discs and multiple rollers via a gear set to crush and grind the coal. Simultaneously, an airflow generated by a bottom-mounted fan blows the fine coal powder upwards. The first motor then rotates the filter screen between the support frame and the inner wall of the mill, allowing the finer coal powder to pass through the filter screen and be discharged from the outlet pipe for easy collection. The coarser coal powder, after the fan is turned off, falls back onto the grinding discs under gravity for further grinding, ultimately forming uniform coal powder. This achieves the effect of grading according to particle size. The equipment can complete grinding and grading in the same process, making it highly efficient, energy-saving, and environmentally friendly. However, over time, coal powder tends to accumulate on the filter screen, causing blockage of the filter pores and reducing filtration efficiency, thus affecting the coal powder processing efficiency. Utility Model Content

[0004] The technical problem this invention aims to solve is that after prolonged use, coal dust tends to adhere and accumulate on the filter screen, causing blockage of the filter holes, thereby reducing filtration efficiency and effectiveness, and affecting coal dust processing efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an environmentally friendly high-dispersion low-smoke coal powder grading and collection production device, including a vertical grinding mill. A feed pipe is provided on one side of the vertical grinding mill, and a discharge pipe is provided on one side of the vertical grinding mill. A support is fixedly installed on the inner wall of the vertical grinding mill. A filter screen is rotatably installed between one side of the support and one side of the inner wall of the vertical grinding mill. A first motor is fixedly installed on one side of the vertical grinding mill. The output end of the first motor is fixedly connected to one end of the filter screen via a coupling. The discharge pipe is connected to the inner wall of the filter screen. Several cleaning devices are provided on one side of the support. The cleaning devices can drive a striking rod to rotate back and forth intermittently on a U-shaped frame via a drive mechanism to strike and vibrate the surface of the filter screen, thereby cleaning the surface of the filter screen and preventing the filter holes from becoming clogged, which would affect the grading and filtration process.

[0006] Preferably, the cleaning device includes a U-shaped frame, wherein a casual clothing mechanism is provided between one side of the U-shaped frame and one side of the support; a striking rod, wherein both ends of the striking rod are respectively installed through and on both sides of the inner wall of the U-shaped frame; two torsion springs, wherein the inner walls of the two torsion springs are respectively sleeved on the outer surfaces of both ends of the striking rod, and both ends are respectively fixedly installed on the inner wall of the U-shaped frame and one side of the striking rod; and a driving mechanism, wherein the driving mechanism is disposed between one side of the striking rod and the U-shaped frame, for driving the striking rod to rotate intermittently on the U-shaped frame.

[0007] The effect achieved by the above-mentioned components is as follows: By setting up a cleaning device, when using a vertical mill to crush and classify high-dispersion low-smoke coal powder, the high-dispersion low-smoke coal powder is fed into the vertical mill through the feed pipe. Then, the internal drive motor is started, which drives the internal grinding disc and multiple grinding rollers through the gear set to crush and grind the coal. At the same time, the airflow generated by the bottom fan blows the fine coal powder upwards. Then, the first motor is started to drive the filter screen to rotate between the support and the inner wall of the vertical mill, so that the finer coal powder passes through the filter screen and is discharged from the discharge pipe for easy collection, while the coarser coal powder is discharged under gravity after the fan is turned off. The coal falls back to the grinding disc under the action of the grinding action to continue grinding, eventually forming uniform coal powder, thus achieving the effect of grading according to particle size. This equipment can complete grinding and grading processing in the same process, making it highly efficient, energy-saving and environmentally friendly. When the filter screen has been used for a long time, the drive mechanism can be activated to drive the striking rod to rotate back and forth intermittently in the inner wall of the U-shaped frame with the help of the torsion spring. One end strikes the surface of the filter screen, causing it to vibrate and shake off the coal powder adhering to the filter screen, achieving the effect of cleaning the filter screen surface. This avoids the filter holes from becoming clogged, affecting the grading and filtration process, improving the filtration effect and efficiency, and thus improving the coal powder processing efficiency.

[0008] Preferably, the cleaning device further includes two cylindrical blocks, wherein the inner wall of the cylindrical blocks is sleeved on the outer surface of the torsion spring, and both ends are respectively fixedly installed on the inner wall of the U-shaped frame and one side of the striking rod.

[0009] The effect achieved by the above-mentioned components is that by setting up the cylindrical block, the outer surface of the torsion spring can be protected, making it difficult for external impurities to get stuck in the gaps of the torsion spring, thus avoiding jamming and affecting its use.

[0010] Preferably, a protective block is fixedly installed on the outer surface of one end of the striking rod, and the protective block is made of rubber.

[0011] The effect achieved by the above components is that by setting up protective blocks, the outer surface of the striking end of the striking rod can be protected, reducing wear on the surface of the filter screen and increasing its service life.

[0012] Preferably, the driving mechanism includes a circular gear, one side of which is fixedly mounted on one side of the striking rod; a protective cover, one side of which is fixedly mounted on one side of the U-shaped frame, its inner wall fitting over the outer surface of the circular gear; a sector gear, one end of which is mounted through the inner wall of the protective cover and its outer surface meshes with the outer surface of the circular gear; and a second motor, one side of which is fixedly mounted on one side of the protective cover and its output end is fixedly mounted on one side of the sector gear via a coupling.

[0013] The effect achieved by the above-mentioned components is as follows: By setting up a drive mechanism, during cleaning, the second motor on the protective cover can be activated to drive the sector gear to rotate. When the outer surface meshes with the circular gear, it will drive the circular gear to rotate, thereby driving the striking rod to rotate on the U-shaped frame, causing the torsion spring to deform, so that one end of the striking rod strikes the outer surface of one end of the filter screen, causing it to vibrate. When the sector gear disengages from the circular gear, the torsion spring will drive the striking rod and the circular gear to reset. At this time, one end of the striking rod will reset and strike the outer surface of the other end of the filter screen. Therefore, the striking rod can be driven to intermittently strike and vibrate the outer surfaces of both ends of the filter screen to clean them, thereby avoiding clogging, improving the efficiency of coal powder classification, filtration, collection and processing, and improving processing efficiency.

[0014] Preferably, the casual clothing mechanism includes a locking rod, one end of which is rotatably mounted on one side of a U-shaped frame. A plurality of locking holes are provided on one side of the frame, wherein the locking rod is inserted into the inner wall of the locking holes.

[0015] The effect achieved by the above components is as follows: by setting up a convenient installation mechanism, when the filter screen is installed on the inner wall of the vertical mill, the clamping rod on the bottom of the U-shaped frame is aligned with the clamping hole on the bracket, and then it is inserted. Finally, it is rotated to ninety degrees so that one end abuts against one side of the bracket, which can limit and fix the U-shaped frame on the bracket, making it convenient for the cleaning device to be used and achieving the effect of quick installation.

[0016] Preferably, a plurality of magnet blocks are symmetrically fixedly installed on one side of the bracket, wherein the clamping rod is made of iron, and one side of the magnet blocks and one side of the clamping rod are magnetically attracted to each other.

[0017] The effect achieved by the above components is that, by setting a magnet, after the lever is inserted into the locking hole and rotated 90 degrees, one side of the lever will be attracted and fixed by the magnet, making it less prone to shaking during locking and making the locking more secure and stable.

[0018] Preferably, a protrusion is fixedly installed on one side of the lever, wherein the longitudinal section of the protrusion is trapezoidal.

[0019] The effect achieved by the above-mentioned components is that by setting the protrusion, the area of ​​one end of the clamp rod can be reduced, so that it can be quickly aligned with the clamp hole and inserted, making installation convenient.

[0020] The beneficial effects of this utility model are:

[0021] By installing a cleaning device, when the filter screen has been used for a long time, the drive mechanism can be activated to drive the striking rod to rotate back and forth intermittently in the inner wall of the U-shaped frame in conjunction with the torsion spring. One end strikes the surface of the filter screen, causing it to vibrate and shake off the coal powder adhering to the filter screen, thus achieving the effect of cleaning the filter screen surface. This prevents the filter holes from becoming clogged, affecting the graded filtration process, improving the filtration effect and efficiency, and thus improving the coal powder processing efficiency. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the vertical grinding mill of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the filter screen of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the bracket of this utility model;

[0027] Figure 5 for Figure 4 A partial structural diagram of the central striking rod;

[0028] Figure 6 for Figure 4 A partial structural diagram of the U-shaped frame.

[0029] Legend: 1. Vertical grinding mill; 2. Cleaning device; 3. Feed pipe; 4. Filter screen; 5. Discharge pipe; 6. First motor; 7. Support frame; 21. U-shaped frame; 22. Striking rod; 23. Torsion spring; 24. Drive mechanism; 241. Protective cover; 242. Circular gear; 243. Sector gear; 244. Second motor; 25. Handling mechanism; 251. Locking hole; 252. Locking rod; 253. Protrusion; 254. Magnet block; 26. Cylindrical block; 27. Protective block. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Figure 1-6 The environmentally friendly high-dispersion low-smoke coal powder grading and collection production device shown includes a vertical mill 1. A feed pipe 3 is provided on one side of the vertical mill 1, and a discharge pipe 5 is provided on one side of the vertical mill 1. A support 7 is fixedly installed on the inner wall of the vertical mill 1. A filter screen 4 is rotatably installed between one side of the support 7 and one side of the inner wall of the vertical mill 1. A first motor 6 is fixedly installed on one side of the vertical mill 1. The output end of the first motor 6 is fixedly connected to one end of the filter screen 4 via a coupling. The inner wall of the discharge pipe 5 is connected to the inner wall of the filter screen 4. Several cleaning devices 2 are provided on one side of the support 7. The cleaning devices 2 can drive the striking rod 22 to rotate back and forth intermittently on the U-shaped frame 21 through the drive mechanism 24 to strike and vibrate the surface of the filter screen 4, thereby cleaning the surface of the filter screen 4 and preventing the filter holes from becoming blocked, which would affect the grading and filtration process.

[0033] Figure 1-6The cleaning device 2 shown includes a U-shaped frame 21, wherein a casual clothing mechanism 25 is provided between one side of the U-shaped frame 21 and one side of the support 7; a striking rod 22, wherein both ends of the striking rod 22 are respectively installed through and on both sides of the inner wall of the U-shaped frame 21; two torsion springs 23, wherein the inner walls of the two torsion springs 23 are respectively sleeved on the outer surfaces of both ends of the striking rod 22, and both ends are respectively fixedly installed on the inner wall of the U-shaped frame 21 and one side of the striking rod 22; and a driving mechanism 24, wherein the driving mechanism 24 is disposed between one side of the striking rod 22 and the U-shaped frame 21, for driving the striking rod 22 to rotate intermittently on the U-shaped frame 21. By installing the cleaning device 2, when using the vertical mill 1 to crush and classify high-dispersion low-smoke coal powder, the high-dispersion low-smoke coal powder is fed into the vertical mill 1 through the feed pipe 3. Then, the internal drive motor is started, which drives the internal grinding disc and multiple grinding rollers through the gear set to crush and grind the coal. At the same time, the airflow generated by the bottom fan blows the fine coal powder upwards. Then, the first motor 6 is started to drive the filter screen 4 to rotate between the support 7 and the inner wall of the vertical mill 1, so that the finer coal powder passes through the filter screen 4 and is discharged from the discharge pipe 5 for easy collection, while the coarser coal powder falls back to the grinding disc under gravity after the fan is turned off. The grinding process continues until uniform coal powder is formed, achieving the effect of grading according to particle size. This equipment can complete grinding and grading in the same process, making it highly efficient, energy-saving, and environmentally friendly. When the filter screen 4 has been used for a long time, the drive mechanism 24 can be activated to drive the striking rod 22 to rotate intermittently in the inner wall of the U-shaped frame 21 in conjunction with the torsion spring 23. One end strikes the surface of the filter screen 4, causing it to vibrate and shake off the coal powder adhering to the filter screen 4, thus cleaning the surface of the filter screen 4. This prevents the filter holes from becoming clogged, affecting the grading filtration process, improving the filtration effect and efficiency, and thus improving the coal powder processing efficiency. The cleaning device 2 also includes two cylindrical blocks 26, the inner wall of which is fitted onto the outer surface of the torsion spring 23, and both ends are fixedly installed on the inner wall of the U-shaped frame 21 and one side of the striking rod 22, respectively. By setting the cylindrical blocks 26, the outer surface of the torsion spring 23 can be protected by a protective cover 241, preventing external impurities from getting stuck in the gaps of the torsion spring 23 and avoiding jamming that would affect its use. A protective block 27, made of rubber, is fixedly installed on the outer surface of one end of the striking rod 22. By setting the protective block 27, the outer surface of the striking end of the striking rod 22 can be protected, reducing wear and tear on the surface of the filter screen 4 and improving its service life.

[0034] Figure 1-6The drive mechanism 24 shown includes a circular gear 242, one side of which is fixedly mounted on one side of the striking rod 22; a protective cover 241, one side of which is fixedly mounted on one side of the U-shaped frame 21, and its inner wall is fitted onto the outer surface of the circular gear 242; a sector gear 243, one end of which is installed through one side of the inner wall of the protective cover 241, and its outer surface meshes with the outer surface of the circular gear 242; and a second motor 244, one side of which is fixedly mounted on one side of the protective cover 241, and its output end is fixedly mounted on one side of one end of the sector gear 243 by means of a coupling. By setting up the drive mechanism 24, during cleaning, the second motor 244 on the protective cover 241 can be activated to drive the sector gear 243 to rotate. When the outer surface meshes with the circular gear 242, it will drive the circular gear 242 to rotate, thereby driving the striking rod 22 to rotate on the U-shaped frame 21, causing the torsion spring 23 to deform, so that one end of the striking rod 22 strikes the outer surface of one end of the filter screen 4, causing it to vibrate. When the sector gear 243 disengages from the circular gear 242, the torsion spring 23 will drive the striking rod 22 and the circular gear 242 to reset. At this time, one end of the striking rod 22 will reset and strike the outer surface of the other end of the filter screen 4. Therefore, the striking rod 22 can be driven to intermittently strike and vibrate the outer surfaces of both ends of the filter screen 4 to clean it, so as to avoid clogging, improve the efficiency of coal powder classification filtration collection and processing, and improve processing efficiency.

[0035] Figure 1-6 The portable mechanism 25 shown includes a locking rod 252, one end of which is rotatably mounted on one side of the U-shaped frame 21. Several locking holes 251 are provided on one side of the bracket 7, and the locking rod 252 is inserted into the inner wall of the locking holes 251. By setting up the portable mechanism 25, when installing the filter screen 4 on the inner wall of the vertical mill 1, the locking rod 252 on the bottom of the U-shaped frame 21 is aligned with the locking holes 251 on the bracket 7, and then inserted. Finally, it is rotated ninety degrees so that one end abuts against one side of the bracket 7, thus fixing the U-shaped frame 21 in place, facilitating the use of the cleaning device 2 and achieving a quick installation effect.

[0036] Figure 1-6Several magnet blocks 254 are symmetrically fixedly installed on one side of the bracket 7 shown. The locking rod 252 is made of iron, and one side of the magnet blocks 254 is magnetically attracted to one side of the locking rod 252. By setting the magnet blocks 254, after the locking rod 252 is inserted into the locking hole 251 and rotated 90 degrees, one side of the locking rod 252 will be attracted and fixed by the magnet blocks 254, making it less prone to shaking during locking and making the locking more secure and stable. A protrusion 253 is fixedly installed on one side of the locking rod 252, and the longitudinal section of the protrusion 253 is trapezoidal. By setting the protrusion 253, the area of ​​one end of the locking rod 252 can be reduced, allowing it to be quickly aligned with the locking hole 251 and inserted, facilitating installation.

[0037] Working principle: When using the vertical mill 1 to pulverize and classify high-dispersion low-smoke coal powder, when the filter screen 4 is installed on the inner wall of the vertical mill 1, align the locking rod 252 on the bottom of the U-shaped frame 21 with the locking hole 251 on the bracket 7, insert it, and finally rotate it to ninety degrees. One side of the locking rod 252 will be attracted and fixed by the magnet block 254, thus limiting and fixing the U-shaped frame 21 on the bracket, facilitating the use of the cleaning device 2 and achieving a quick installation effect. During processing, the high-dispersion low-smoke coal powder will be... The coal is fed into the vertical mill 1 through the feed pipe 3. The internal drive motor is then started, which, through a gear set, drives the internal grinding disc and multiple grinding rollers to crush and grind the coal. Simultaneously, the airflow generated by the bottom-mounted fan blows the fine coal powder upwards. At this point, the first motor 6 starts, causing the filter screen 4 to rotate between the support 7 and the inner wall of the vertical mill 1. This allows the finer coal powder to pass through the filter screen 4 and be discharged from the discharge pipe 5 for easy collection. The coarser coal powder, after the fan is turned off, falls back onto the grinding disc under gravity for further grinding, ultimately forming a uniform powder. The coal powder is ground to achieve grading based on particle size. This equipment can complete grinding and grading in the same process, making it highly efficient, energy-saving, and environmentally friendly. When the filter screen 4 has been used for a long time, the second motor 244 on the protective cover 241 can be started to drive the sector gear 243 to rotate. When the outer surface meshes with the circular gear 242, it will drive the circular gear 242 to rotate, thereby driving the striking rod 22 to rotate on the U-shaped frame 21, causing the torsion spring 23 to deform, so that one end of the striking rod 22 strikes the filter screen. Vibration is generated on the outer surface of one end of the filter screen 4. When the sector gear 243 disengages from the circular gear 242, the torsion spring 23 will drive the striking rod 22 and the circular gear 242 to reset. At this time, one end of the striking rod 22 will reset and strike the outer surface of the other end of the filter screen 4. Therefore, the striking rod 22 can be driven to intermittently strike and vibrate the outer surfaces of both ends of the filter screen 4 to clean them, so as to avoid clogging and improve the efficiency of coal powder classification filtration and collection processing. This will prevent the filter holes from clogging and thus improve the coal powder processing efficiency.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An environmentally friendly high-dispersion low-smoke coal powder grading and collection production device, including a vertical grinding mill (1), characterized in that: A feed pipe (3) is provided on one side of the vertical mill (1), and a discharge pipe (5) is provided on one side of the vertical mill (1). A bracket (7) is fixedly installed on the inner wall of the vertical mill (1). A filter screen (4) is rotatably installed between one side of the bracket (7) and one side of the inner wall of the vertical mill (1). A first motor (6) is fixedly installed on one side of the vertical mill (1). The output end of the first motor (6) is fixedly connected to one end of the filter screen (4) by means of a coupling. The inner wall of the discharge pipe (5) is connected to the inner wall of the filter screen (4). Several cleaning devices (2) are provided on one side of the bracket (7). The cleaning device (2) can drive the knocking rod (22) to rotate back and forth on the U-shaped frame (21) at intervals through the drive mechanism (24) to knock and vibrate the surface of the filter screen (4) to clean the surface of the filter screen (4) and avoid clogging of the filter holes, which would affect the graded filtration process.

2. The environmentally friendly high-dispersion low-smoke pulverized coal grading and collection production device according to claim 1, characterized in that: The cleaning device (2) includes a U-shaped frame (21), wherein a casual clothing mechanism (25) is provided between one side of the U-shaped frame (21) and one side of the support (7). A striking rod (22), wherein the two ends of the striking rod (22) are respectively installed through the inner wall of the U-shaped frame (21); Two torsion springs (23), the inner walls of which are respectively sleeved on the outer surfaces of both ends of the striking rod (22), and both ends are respectively fixedly installed on the inner wall of the U-shaped frame (21) and one side of the striking rod (22); The driving mechanism (24) is located between one side of the striking rod (22) and the U-shaped frame (21) to drive the striking rod (22) to rotate intermittently on the U-shaped frame (21).

3. The environmentally friendly high-dispersion low-smoke pulverized coal grading and collection production device according to claim 2, characterized in that: The cleaning device (2) also includes two cylindrical blocks (26), wherein the inner wall of the cylindrical block (26) is sleeved on the outer surface of the torsion spring (23), and both ends are fixedly installed on the inner wall of the U-shaped frame (21) and one side of the striking rod (22).

4. The environmentally friendly high-dispersion low-smoke pulverized coal grading and collection production device according to claim 2, characterized in that: A protective block (27) is fixedly installed on the outer surface of one end of the striking rod (22), and the protective block (27) is made of rubber.

5. The environmentally friendly high-dispersion low-smoke pulverized coal grading and collection production device according to claim 2, characterized in that: The drive mechanism (24) includes a circular gear (242), wherein one side of the circular gear (242) is fixedly mounted on one side of the striking rod (22); A protective cover (241) is fixedly mounted on one side of a U-shaped frame (21), and its inner wall is fitted onto the outer surface of a circular gear (242). A sector gear (243), one end of which is mounted through the inner wall of the protective cover (241) and its outer surface meshes with the outer surface of the circular gear (242); The second motor (244) is fixedly mounted on one side of the protective cover (241) and its output end is fixedly mounted on one side of the sector gear (243) by means of a coupling.

6. The environmentally friendly high-dispersion low-smoke pulverized coal classification and collection production device according to claim 2, characterized in that: The casual clothing mechanism (25) includes a locking rod (252), one end of which is rotatably mounted on one side of a U-shaped frame (21). A plurality of locking holes (251) are provided on one side of the bracket (7), wherein the locking rod (252) is inserted into the inner wall of the locking hole (251).

7. The environmentally friendly high-dispersion low-smoke pulverized coal grading and collection production device according to claim 6, characterized in that: A number of magnet blocks (254) are symmetrically fixed on one side of the bracket (7), wherein the clamp rod (252) is made of iron, and one side of the magnet block (254) is magnetically attracted to one side of the clamp rod (252).

8. The environmentally friendly high-dispersion low-smoke pulverized coal grading and collection production device according to claim 6, characterized in that: A protrusion (253) is fixedly installed on one side of the lever (252), wherein the longitudinal section of the protrusion (253) is trapezoidal.

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