A dust removal device for Raymond grinding machine

Abstract

The present invention relates to the technical field of dust removal, and specifically to a dust removal device for a Raymond grinder, comprising a housing, a bracket, a filter bag and a knocking assembly; the bracket is fixed in the housing, and the filter bag is sleeved outside the bracket; the knocking assembly is arranged in the filter bag, comprising a track ring and a knocking rod, the knocking rod is slidably mounted on the bracket, and is connected to the bracket through an elastic member. A plurality of track grooves are provided on the track ring, and the plurality of track grooves are coaxial with the axis of rotation of the track ring, and the diameters increase successively; a through groove connecting the plurality of track grooves is also provided on the track ring; the knocking rod reciprocates and strikes the filter bag under the restriction of the elastic member and the peak groove and the trough groove in the track groove. When the protrusion gradually moves from the track groove with the smallest diameter to the track groove with the largest diameter, the knocking rod's impact on the filter bag changes from a low-frequency heavy impact to a high-frequency light impact, which is adapted to the blockage of the filter bag, and can reduce damage to the filter bag, thereby ensuring the cleaning effect and extending the service life of the filter bag.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal, and in particular to a dust removal device for a Raymond grinder. Background Art

[0002] The Raymond grinder grinds the material by extrusion of the grinding roller device. The fine powder is blown to the collector by the airflow of the blower for collection. The purified airflow returns to the blower through the return air duct to form a closed-loop circulation. The excess gas is sent to the dust collector for separation and purification before being discharged into the atmosphere. The dust collector can not only purify the gas, but also collect the material powder carried in the gas to further recycle the material. The commonly used dust collectors in the Raymond grinder are bag dust collectors, which can collect fine dust and are suitable for exhaust dust removal systems. Bag dust collectors are easy to clog during use, and usually need to be knocked or vibrated to make the dust fall off, but frequent knocking or shaking will affect the service life of the filter bag, and thus affect the service life of the dust removal equipment. Summary of the invention

[0003] The invention provides a dust removal device for a Raymond grinder to solve the problem that frequent cleaning of filter bags of the existing dust collector affects the service life of the dust collector.

[0004] A dust removal device for a Raymond grinder of the present invention adopts the following technical solution:

[0005] A dust removal device for a Raymond grinder comprises a shell, a bracket, a filter bag and a knocking assembly; a partition is arranged in the shell, and the partition divides the shell into a dust removal chamber and an air outlet chamber which are isolated from each other; the dust removal chamber is connected to the return air duct of the Raymond grinder for receiving excess gas, and an air extraction device is connected to the air outlet chamber; the bracket is fixed to the partition, the filter bag is sleeved outside the bracket, and the filter bag is located in the dust removal chamber, and the inner circle of the filter bag is connected to the air outlet chamber; the knocking assembly is arranged in the filter bag, and comprises a track ring and a knocking rod, and the knocking rod is slidably installed on the bracket along its own axial direction, and one end of the knocking rod is connected to the bracket through an elastic member, and the other end is connected to the filter The inner circle of the bag is abutted; the track ring is parallel to the knocking rod and is rotatably installed on the bracket, and a plurality of track grooves are provided on the track ring, and the plurality of track grooves are coaxial with the rotation axis of the track ring, and the diameters increase successively; a through groove is also provided on the track ring to connect the plurality of track grooves along the radial direction of the track ring; a protrusion is provided on the knocking rod to slide with the track groove; the side wall of the track groove is provided with a plurality of crest grooves and trough grooves distributed alternately in sequence in the circumferential direction of the track ring, and the crest groove is farther away from the center of the track ring than the trough groove; from away from the center of the track ring to close to the center of the track ring, the number of crest grooves in the plurality of track grooves decreases.

[0006] Furthermore, there are multiple knock rods, which are evenly distributed around the circumference of the track ring.

[0007] Furthermore, there are multiple knocking assemblies in each filter bag, and the multiple knocking assemblies are spaced apart along the length direction of the filter bag; the multiple knocking rods of the same knocking assembly are all tilted relative to the radial direction of the track ring in which they are located, and the tilting directions are the same; the knocking rods of two adjacent knocking assemblies are tilted in opposite directions.

[0008] Furthermore, the bracket includes multiple support rods and multiple support rings, the multiple support rods are parallel and form a cylindrical shape with the same shape as the inner circle of the filter bag, the multiple support rings are distributed at intervals along the axial direction of the support rods, the support rings connect the multiple support rods and the outer rings of the support rings are coplanar with the cylindrical outer circumferential surface formed by the multiple support rods.

[0009] Furthermore, a protrusion between two adjacent circles of track grooves on the track ring is provided with an arc surface at the front side in the rotation direction of the track ring and at one end close to the through groove, for guiding the protrusion to slide with one of the track grooves.

[0010] Furthermore, a connecting hole is provided on the partition plate, and the inner circle of the filter bag is connected with the air outlet cavity through the connecting hole.

[0011] Furthermore, a motor is fixed in the housing, and the motor drives multiple track rings in the same filter bag to rotate synchronously through a connecting rod.

[0012] Furthermore, an air inlet connected to the dust removal chamber is provided on the side wall of the shell for connecting to a return air duct of the Raymond grinder.

[0013] Furthermore, an air outlet connected to the air outlet cavity is provided on the shell, and the air outlet cavity is connected to an external air extraction device through the air outlet.

[0014] Furthermore, a funnel with a small end facing downward is arranged at the bottom of the shell, and a discharge port is opened at the bottom of the funnel.

[0015] The beneficial effect of the present invention is that when the track ring of the dust removal equipment for Raymond grinder of the present invention rotates, the protrusion on the knocking rod moves in the track groove relative to the track ring, and the knocking rod moves back and forth to hit the filter bag under the restriction of the elastic part and the crest groove and trough groove in the track groove. By setting a plurality of track grooves, and the number of wave peak grooves in the plurality of track grooves decreases from being away from the center of the track ring to being close to the center of the track ring, when the protrusion moves in the track groove with the smallest diameter, the number of wave peak grooves in the track groove is the least, which can reduce the damage of the knocking rod to the filter bag. As the knocking rod knocks on the filter bag, the dust attached to the outside of the filter bag is shaken off, the blockage degree of the filter bag is reduced, the suction resistance of the exhaust device is reduced, and the shrinkage degree of the filter bag is reduced. When the protrusion on the knocking rod rotates to the through groove relative to the track ring, it will enter the track groove with a larger diameter under the action of the elastic member. The larger the diameter of the track groove, the smaller the force stored in the elastic member when the protrusion is in the track groove, and the smaller the impact force of the knocking rod on the filter bag. By increasing the number of wave peak grooves, the impact frequency of the knocking rod on the filter bag is increased, and the falling of dust attached to the outside of the filter bag is further accelerated. As the blockage degree of the filter bag gradually decreases, the protrusion gradually moves from the track groove with the smallest diameter to the track groove with the largest diameter, and the impact of the knocking rod on the filter bag changes from low-frequency heavy impact to high-frequency light impact, which is adapted to the blockage situation of the filter bag and can reduce damage to the filter bag, ensuring the cleaning effect while extending the service life of the filter bag.

[0016] Furthermore, each knocking assembly has multiple knocking rods that are evenly distributed around the circumference of the track ring, forming multi-point support and knocking for the inner circle of the filter bag.

[0017] Furthermore, there are multiple knocking assemblies in each filter bag, and the multiple knocking assemblies are spaced apart along the length direction of the filter bag. The multiple knocking rods of the same knocking assembly are all tilted relative to the radial direction of the track ring where they are located, and the tilting directions are the same; the knocking rods of two adjacent knocking assemblies are tilted in opposite directions. The knocking rods of two adjacent knocking assemblies knock the filter bag in opposite tilting directions, causing the filter bag between the two knocking assemblies to partially twist slightly, thereby causing the dust outside the filter bag to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a dust removal device for a Raymond grinder of the present invention;

[0020] Figure 2 A side view of the overall structure of an embodiment of a dust removal device for a Raymond grinder of the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the AA section, the filter bag in the center is hidden in the figure;

[0022] Figure 4 for Figure 2 The cross-sectional diagram in the middle BB direction hides the filter bag in the center and the knocking components and brackets in the multiple filter bags at the edge;

[0023] Figure 5 for Figure 4 The enlarged schematic diagram of the center C;

[0024] Figure 6 It is a structural schematic diagram of a bracket and one of the knocking components in an embodiment of a dust removal device for a Raymond grinder of the present invention;

[0025] Figure 7 An exploded schematic diagram of a bracket and one of the knocking components in an embodiment of a dust removal device for a Raymond grinder of the present invention;

[0026] Figure 8 It is a structural schematic diagram of a track plate in an embodiment of a dust removal device for a Raymond grinder of the present invention;

[0027] In the figure: 100, shell; 110, partition; 111, connecting hole; 120, motor; 121, connecting rod; 130, air inlet; 140, air outlet; 150, funnel; 151, discharge port; 200, bracket; 210, support rod; 220, support ring; 221, sleeve; 300, filter bag; 400, knocking assembly; 410, track ring; 411, track groove; 412, through groove; 420, knocking rod; 421, bump; 430, elastic member. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] An embodiment of a dust removal device for a Raymond grinder of the present invention is as follows Figures 1 to 8 As shown, it includes a housing 100 , a bracket 200 , a filter bag 300 and a knocking assembly 400 .

[0030] A partition 110 is provided in the housing 100, and the partition 110 divides the housing 100 into a dust removal chamber and an air outlet chamber which are isolated from each other; the dust removal chamber is connected to the return air duct of the Raymond grinder to receive excess gas. Specifically, an air inlet 130 connected to the dust removal chamber is provided on the side wall of the housing 100, and the air inlet 130 is connected to the return air duct of the Raymond grinder. The air outlet chamber is connected to an exhaust device (not shown in the figure); specifically, an air outlet 140 connected to the air outlet chamber is provided on the housing 100, and the air outlet chamber is connected to the exhaust device through the air outlet 140. The bracket 200 is fixed to the partition 110, and the filter bag 300 is sleeved outside the bracket 200, and the filter bag 300 is located in the dust removal chamber, and the inner circle of the filter bag 300 is connected to the air outlet chamber; specifically, a connecting hole 111 is provided on the partition 110, and the inner circle of the filter bag 300 is connected to the air outlet chamber through the connecting hole 111.

[0031] The knocking assembly 400 is arranged in the filter bag 300, and includes a track ring 410 and a knocking rod 420. The knocking rod 420 is slidably mounted on the bracket 200 along its own axial direction, and one end is connected to the bracket 200 through an elastic member 430, and the other end is in contact with the inner ring of the filter bag 300, and is used to knock the inner ring of the filter bag 300 to cause the dust attached to the outside of the filter bag 300 to fall off. The track ring 410 is parallel to the knocking rod 420 and is rotatably mounted on the bracket 200, and a plurality of track grooves 411 are provided on the track ring 410, and the plurality of track grooves 411 are coaxial with the rotation axis of the track ring 410, and the diameters increase successively; the track ring 410 is also provided with a through groove 412 that connects the plurality of track grooves 411 along the radial direction of the track ring 410; a plurality of through grooves 412 can be provided, and are evenly distributed around the track ring 410. The knock rod 420 is provided with a protrusion 421 that slides with the track groove 411; the side wall of the track groove 411 is provided with multiple crest grooves and trough grooves that are alternately distributed in sequence in the circumferential direction of the track ring 410, and the crest grooves are farther away from the center of the track ring 410 than the trough grooves; from away from the center of the track ring 410 to close to the center of the track ring 410, the number of crest grooves in the multiple track grooves 411 decreases.

[0032] When the track ring 410 rotates, the protrusion 421 on the knocking rod 420 moves in the track groove 411 relative to the track ring 410, and in the process of moving from the crest groove to the trough groove, the knocking rod 420 is pressed back by the side wall of the track groove 411 and causes the elastic member 430 to accumulate force. In the process of moving from the trough groove to the crest groove, the knocking rod 420 extends out to hit the filter bag 300 under the action of the elastic member 430 restoring the deformation, wherein the crest groove provides an avoidance space for the protrusion 421 to move away from the center of the track ring 410, so that the knocking rod 420 can hit the filter bag 300.

[0033] In the initial state, the protrusion 421 is located at the through groove 412. Under the suction action of the air extraction device, the gas with dust enters the dust removal chamber, is filtered by the filter bag 300, and then enters the air outlet chamber from the inside of the filter bag 300 and is discharged. As the dust outside the filter bag 300 accumulates more, the suction resistance of the air extraction device increases, causing the filter bag 300 to shrink, and the knocking rod 420 supported on the inner circle of the filter bag 300 is pushed back. The more dust attached to the outside of the filter bag 300, the greater the suction resistance of the air extraction device, the greater the shrinkage of the filter bag 300, and the closer the protrusion 421 on the knocking rod 420 is to the track groove 411 with the smallest diameter. Specifically, a sensor can be set between the knocking rod 420 and the bracket 200. When the protrusion 421 on the knocking rod 420 moves to the circumference of the track groove 411 with the smallest diameter, the track ring 410 is triggered to rotate, so that the knocking rod 420 hits the filter bag 300. Since the number of wave crest grooves in the plurality of track grooves 411 decreases from being far from the center of the track ring 410 to being close to the center of the track ring 410, the track groove 411 with the smallest diameter has the least number of wave crest grooves; when the protrusion 421 moves in the track groove 411 with the smallest diameter, the knocking rod 420 maximizes the stored force of the elastic member 430, and when the protrusion 421 reaches the wave crest groove, the impact force on the filter bag 300 is the greatest. The track groove 411 with the least number of wave crest grooves can reduce the damage of the knocking rod 420 to the filter bag 300. As the knocking rod 420 knocks on the filter bag 300, the dust attached to the outside of the filter bag 300 is shaken off, and the filter bag 300 is The degree of blockage is reduced, the suction resistance of the exhaust device is reduced, the degree of contraction of the filter bag 300 is reduced, and the protrusion 421 on the knocking rod 420 will enter the track groove 411 with a larger diameter under the action of the elastic member 430 when the protrusion 421 is rotated to the through groove 412 relative to the track ring 410. The larger the diameter of the track groove 411, the smaller the force stored by the elastic member 430 when the protrusion 421 is in the track groove 411, and the smaller the impact force of the knocking rod 420 on the filter bag 300. By increasing the number of wave peak grooves, the impact frequency of the knocking rod 420 on the filter bag 300 is increased, and the falling of dust attached to the outside of the filter bag 300 is further accelerated. As the blockage degree of the filter bag 300 gradually decreases, the protrusion 421 gradually moves from the track groove 411 with the smallest diameter to the track groove 411 with the largest diameter, and the impact of the knocking rod 420 on the filter bag 300 changes from low-frequency heavy impact to high-frequency light impact, which is adapted to the blockage condition of the filter bag 300 and can reduce damage to the filter bag 300, thereby ensuring the cleaning effect and extending the service life of the filter bag 300.

[0034] In this embodiment, there are multiple knocking rods 420, which are evenly distributed around the circumference of the track ring 410, so as to form multi-point support and knocking for the inner circle of the filter bag 300. Preferably, a rubber pad or other flexible material is provided at one end of the knocking rod 420 close to the filter bag 300 to reduce the damage of the knocking rod 420 to the filter bag 300.

[0035] In this embodiment, there are multiple knocking assemblies 400 in each filter bag 300, and the multiple knocking assemblies 400 are spaced apart along the length direction of the filter bag 300. The multiple knocking rods 420 of the same knocking assembly 400 are all inclined relative to the radial direction of the track ring 410 in which they are located, and the inclination direction is the same; the knocking rods 420 of two adjacent knocking assemblies 400 are inclined in opposite directions. Specifically, the two ends of the knocking rod 420 are respectively a first end and a second end, the first end is an end away from the filter bag 300, and the second end is an end close to the filter bag 300, the first end and the second end are located on different circumferences around the center of the track ring 410, and the first end and the second end are distributed sequentially along the rotation direction of the track ring 410; in every two adjacent knocking assemblies 400, the first end of the knocking rod 420 of one knocking assembly 400 is located at the front side of the second end along the turning direction of the track ring 410, and the first end of the knocking rod 420 of the other knocking assembly 400 is located at the rear side of the second end along the turning direction of the track ring 410; so that the knocking rods 420 of the two adjacent knocking assemblies 400 knock the filter bag 300 along opposite inclined directions, causing the filter bag 300 between the two knocking assemblies 400 to locally produce a slight twist of the filter bag 300, causing dust on the outside of the filter bag 300 to fall off.

[0036] In this embodiment, the bracket 200 includes a plurality of support rods 210 and a plurality of support rings 220. The plurality of support rods 210 are parallel and form a cylindrical shape with the same shape as the inner ring of the filter bag 300. The plurality of support rings 220 are spaced apart along the axial direction of the support rods 210. The support rings 220 connect the plurality of support rods 210 and the outer ring of the support rings 220 is coplanar with the outer peripheral surface of the cylindrical shape formed by the plurality of support rods 210. Each knocking assembly 400 is correspondingly arranged in the inner ring of a support ring 220. Specifically, the track ring 410 is rotatably mounted in the inner ring of the support ring 220, and the inner ring of the support ring 220 is provided with sleeves 221 corresponding to the number of the knocking rods 420. Each sleeve 221 is coaxial with a knocking rod 420. One end of each knocking rod 420 is slidably sleeved in the sleeve 221, and the other end passes through the support ring 220 to abut against the filter bag 300. The elastic member 430 connects the knocking rod 420 and the sleeve 221.

[0037] In this embodiment, the protrusion between two adjacent circles of track grooves 411 on the track ring 410 is provided with an arc surface at the front side of the track ring 410 in the rotation direction and close to one end of the through groove 412 for guiding the protrusion 421 to slide with one of the track grooves 411 .

[0038] In this embodiment, a motor 120 is fixed in the housing 100, and the motor 120 drives multiple track rings 410 located in the same filter bag 300 to rotate synchronously through a connecting rod 121. Specifically, each time the motor 120 is started, the track ring 410 is driven to rotate by a full number of circles, so that each time the track ring 410 stops rotating, the protrusion 421 on the knocking rod 420 can be located at the through groove 412.

[0039] In this embodiment, a funnel 150 with a small end facing downward is provided at the bottom of the housing 100, and a discharge port 151 is provided at the bottom of the funnel 150, and dust shaken off the filter bag 300 falls into the funnel 150 and is discharged from the discharge port 151. A valve for controlling the opening and closing of the discharge port 151 is provided at the discharge port 151.

[0040] In some other embodiments, a plurality of the bracket 200, the connecting hole 111 and the filter bag 300 are provided to improve the dust removal efficiency.

[0041] When the dust removal device for a Raymond grinder of the present invention is in use, in the initial state, the protrusion 421 is located at the through groove 412, and under the suction action of the air extraction device, the gas containing dust enters the dust removal chamber from the air inlet 130, and then enters the air outlet chamber from the inside of the filter bag 300 after being filtered by the filter bag 300, and then is discharged from the air outlet 140. The dust adheres to the outer surface of the filter bag 300.

[0042] As the dust outside the filter bag 300 accumulates, the suction resistance of the air extraction device increases, causing the filter bag 300 to shrink, and the knocking rod 420 supported on the inner circle of the filter bag 300 is pushed back. The more dust attached to the outside of the filter bag 300, the greater the suction resistance of the air extraction device, the greater the shrinkage of the filter bag 300, and the closer the bump 421 on the knocking rod 420 is to the track groove 411 with the smallest diameter. Specifically, a sensor can be set between the knocking rod 420 and the bracket 200. When the bump 421 on the knocking rod 420 moves to the circumference of the track groove 411 with the smallest diameter, the motor 120 starts to drive the track ring 410 to rotate, so that when the bump 421 on the knocking rod 420 moves relative to the track ring 410 in the track groove 411, it moves back and forth under the working action of the elastic member 430 and the side wall of the track groove 411, and hits the filter bag 300.

[0043] Since the number of wave crest grooves in the plurality of track grooves 411 decreases from being far from the center of the track ring 410 to being close to the center of the track ring 410, the track groove 411 with the smallest diameter has the least number of wave crest grooves; when the protrusion 421 moves in the track groove 411 with the smallest diameter, the knocking rod 420 maximizes the stored force of the elastic member 430, and when the protrusion 421 reaches the wave crest groove, the impact force on the filter bag 300 is the greatest. The track groove 411 with the least number of wave crest grooves can reduce the damage of the knocking rod 420 to the filter bag 300. As the knocking rod 420 knocks on the filter bag 300, the dust attached to the outside of the filter bag 300 is shaken off, and the filter bag 300 is The degree of blockage is reduced, the suction resistance of the exhaust device is reduced, the degree of contraction of the filter bag 300 is reduced, and the protrusion 421 on the knocking rod 420 will enter the track groove 411 with a larger diameter under the action of the elastic member 430 when the protrusion 421 is rotated to the through groove 412 relative to the track ring 410. The larger the diameter of the track groove 411, the smaller the force stored by the elastic member 430 when the protrusion 421 is in the track groove 411, and the smaller the impact force of the knocking rod 420 on the filter bag 300. By increasing the number of wave peak grooves, the impact frequency of the knocking rod 420 on the filter bag 300 is increased, and the falling of dust attached to the outside of the filter bag 300 is further accelerated. As the blockage degree of the filter bag 300 gradually decreases, the protrusion 421 gradually moves from the track groove 411 with the smallest diameter to the track groove 411 with the largest diameter, and the impact of the knocking rod 420 on the filter bag 300 changes from low-frequency heavy impact to high-frequency light impact, which is adapted to the blockage condition of the filter bag 300 and can reduce damage to the filter bag 300, thereby ensuring the cleaning effect and extending the service life of the filter bag 300.

[0044] When there are multiple knocking assemblies 400 and each knocking assembly 400 has multiple knocking rods 420, the knocking rods 420 of two adjacent knocking assemblies 400 knock the filter bag 300 along opposite inclined directions, causing the filter bag 300 between the two knocking assemblies 400 to locally twist slightly, further causing dust on the outside of the filter bag 300 to fall off.

[0045] After the motor 120 is started, it can automatically stop after a certain number of revolutions or a certain time, so that the whole cleaning process can be automatically carried out and stopped. In some other embodiments, the motor 120 can also be started and stopped manually to clean the filter bag 300.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust removal device for a Raymond grinder, characterized in that: Includes housing, bracket, filter bag and knocking assembly; A partition is arranged inside the shell, and the partition divides the shell into a dust removal chamber and an air outlet chamber which are isolated from each other; the dust removal chamber is connected to the return air duct of the Raymond grinder to receive excess gas, and an air extraction device is connected to the air outlet chamber; the bracket is fixed to the partition, the filter bag is sleeved outside the bracket, and the filter bag is located in the dust removal chamber, and the inner circle of the filter bag is connected to the air outlet chamber; The knocking assembly is arranged in the filter bag, including a track ring and a knocking rod. The knocking rod is slidably installed on the bracket along its own axis, and one end is connected to the bracket through an elastic member, and the other end abuts against the inner ring of the filter bag; the track ring is parallel to the knocking rod and is rotatably installed on the bracket, and a plurality of track grooves are provided on the track ring, and the plurality of track grooves are coaxial with the rotation axis of the track ring, and the diameters increase successively; the track ring is also provided with a through groove connecting the plurality of track grooves along the radial direction of the track ring; the knocking rod is provided with a protrusion that slidably cooperates with the track groove; the side wall of the track groove is provided with a plurality of crest grooves and trough grooves that are alternately distributed in sequence in the circumferential direction of the track ring, and the crest groove is farther away from the center of the track ring than the trough groove; the number of crest grooves in the plurality of track grooves decreases from being away from the center of the track ring to being close to the center of the track ring; There are multiple knock rods, which are evenly distributed around the circumference of the track ring; The bracket includes multiple support rods and multiple support rings. The multiple support rods are parallel and form a cylindrical shape with the same shape as the inner ring of the filter bag. The multiple support rings are distributed at intervals along the axial direction of the support rods. The support rings connect the multiple support rods and the outer rings of the support rings are coplanar with the outer peripheral surface of the cylindrical shape formed by the multiple support rods. The track ring is rotatably installed on the inner ring of the support ring, and the inner ring of the support ring is provided with sleeves corresponding to the number of knocking rods, each sleeve is coaxial with a knocking rod, one end of each knocking rod is slidably mounted on the sleeve, and the other end passes through the support ring and abuts against the filter bag, and an elastic member connects the knocking rod and the sleeve.

2. The dust removal device for Raymond grinding machine according to claim 1, characterized in that: There are multiple knocking assemblies in each filter bag, and the multiple knocking assemblies are spaced apart along the length direction of the filter bag; each knocking assembly is correspondingly arranged on an inner ring of a support ring; the multiple knocking rods of the same knocking assembly are all inclined relative to the radial direction of the track ring where they are located, and the inclination direction is the same; the knocking rods of two adjacent knocking assemblies have opposite inclination directions.

3. The dust removal device for Raymond grinding machine according to claim 1, characterized in that: The protrusion between two adjacent circles of track grooves on the track ring is provided with an arc surface at the front side of the track ring in the rotation direction and close to one end of the through groove, which is used to guide the protrusion to slide with one of the track grooves.

4. The dust removal device for Raymond grinding machine according to claim 1, characterized in that: A connecting hole is provided on the partition plate, and the inner circle of the filter bag is connected with the air outlet cavity through the connecting hole.

5. The dust removal device for Raymond grinding machine according to claim 1, characterized in that: A motor is fixed in the outer shell, and the motor drives multiple track rings located in the same filter bag to rotate synchronously through a connecting rod.

6. The dust removal device for Raymond grinding machine according to claim 1, characterized in that: An air inlet connected to the dust removal chamber is provided on the side wall of the shell and is used to be connected to a return air duct of the Raymond grinder.

7. The dust removal device for Raymond grinding machine according to claim 1, characterized in that: An air outlet connected to the air outlet cavity is provided on the shell, and the air outlet cavity is connected to an external air extraction device through the air outlet.

8. The dust removal device for Raymond grinding machine according to claim 1, characterized in that: A funnel with a small end facing downward is arranged at the bottom of the shell, and a discharge port is opened at the bottom of the funnel.

Images