Compaction granulator

Abstract

The invention discloses a compaction granulator which comprises a rack, a shell is mounted on the rack, a hollow shaft is rotatably mounted in an inner cavity of the shell, a center shaft is rotatably mounted in the hollow shaft, the rotating direction of the hollow shaft is opposite to that of the center shaft, a hollow shaft driving mechanism for driving the hollow shaft to rotate is arranged in the shell, and the center shaft is in transmission connection with a center shaft driving mechanism. A granulating shell is arranged at the lower end of the shell, a granulating wheel is arranged in the granulating shell, the granulating wheel is mounted on a central shaft, a feeding cavity positioned above the granulating wheel is further formed in the shell, the feeding cavity is communicated with an inner cavity of the granulating shell, a pressing wheel positioned in the feeding cavity is mounted on the hollow shaft, and the feeding cavity is further connected with a feeding mechanism; materials entering the feeding cavity are driven to the granulation shell through the material pressing wheel, the materials are extruded into meshes of the granulation shell through rotation of the granulation wheel, air is extruded out, the materials are extruded out of the meshes through repeated compaction to form compacted particles, the compacted particles are forcibly separated from gas, and compaction of the materials is efficiently achieved.

Description

Technical Field

[0001] The present invention relates to the field of granulation equipment, in particular to a compaction granulator. Background Art

[0002] During the crushing and grading process, the material is basically transported by negative pressure suction. When the material is packaged, the mixed gas enters the packaging bag together, and the packaging bag will not be filled tightly. The prior art discloses solutions to the above technical problems. For example, patent application 201910360820.4 discloses an intelligent vertical spiral bagging device. To address the problem of loose bagging due to the large gas content when bagging nano-scale powders, the device includes a horizontal spiral machine, a vertical spiral machine, a bag clamping and weighing mechanism, etc. Through the vacuum spiral cylinder provided by the horizontal spiral machine, multiple vacuum negative pressure chambers with successively increasing vacuum degrees are used to pump out air step by step, thereby extracting a large amount of air contained in the nano-scale powder, so that the powder meets the requirements of dense packaging. Combined with the intelligent vertical spiral bagging device, high-speed and high-precision packaging of ultrafine powders is achieved. However, the above scheme has a relatively complex structure, low compaction efficiency, and cannot achieve efficient granulation. Summary of the Invention

[0003] The present invention provides a compacting granulator to solve the technical problem that the prior art has a complex structure and cannot achieve efficient material compaction and granulation.

[0004] The technical solution of the present invention is: a compaction granulator, comprising a frame, a shell is installed on the frame, a hollow shaft is rotatably installed in the inner cavity of the shell, a center shaft is rotatably installed in the hollow shaft, the rotation directions of the hollow shaft and the center shaft are opposite, a hollow shaft driving mechanism for driving the hollow shaft to rotate is provided in the shell, the center shaft transmission is connected to the center shaft driving mechanism, a granulating shell is provided at the lower end of the shell, a granulating wheel is provided in the granulating shell, the granulating wheel is installed on the center shaft, a feeding chamber located above the granulating wheel is further provided in the shell, the feed chamber is connected to the inner cavity of the granulating shell, a pressing wheel located in the feed chamber is installed on the hollow shaft, and the feed chamber is also connected to a feeding mechanism.

[0005] As a preferred technical solution, the hollow shaft drive mechanism includes a driving gear fixedly mounted on the central shaft and a gear ring sleeved outside the driving gear. The gear ring is fixedly mounted on the hollow shaft, and an intermediate gear is engaged between the gear ring and the driving gear.

[0006] As a preferred technical solution, the shell includes an upper shell and a lower shell, the bottom of the lower shell is provided with the feed chamber, the inner wall of the lower shell is provided with an annular partition located above the feed chamber, a lower bearing is installed between the upper surface of the annular partition and the hollow shaft, and an upper bearing is installed between the upper part of the lower shell and the hollow shaft.

[0007] As a preferred technical solution, the intermediate wheel is fixedly mounted on the intermediate wheel shaft, and the intermediate wheel shaft is rotatably mounted on the upper housing.

[0008] As a preferred technical solution, the pressing wheel includes an annular body, and a plurality of pressing pieces are fixedly mounted on the outer circumference of the annular body, and the upper ends of the pressing pieces are inclined along the rotation direction of the pressing pieces.

[0009] As a preferred technical solution, the granulation wheel includes multiple extrusion parts, each of which includes a head and a root, and the head is deflected relative to the root in the opposite direction of rotation of the granulation wheel; the granulation shell includes a chassis and a cylinder, and the cylinder is fixedly installed together with the chassis, and mesh holes are evenly distributed on the cylinder.

[0010] As a preferred technical solution, a material guiding gap is provided between adjacent extrusion parts.

[0011] As a preferred technical solution, the side surface of the head includes an inner plane adjacent to the central axis and an outer arc surface adjacent to the inner cavity wall of the granulation shell, and the center of the outer arc surface coincides with the axis of the granulation wheel.

[0012] As a preferred technical solution, the angle α between the inner plane and the line connecting the intersection of the inner plane and the outer arc surface and the axis of the granulating wheel is ≥25° and ≤45°.

[0013] As a preferred technical solution, the head includes a second arcuate surface connected to the outer arcuate surface, and the head also includes a third arcuate surface connected to the inner plane, and the radius of the third arcuate surface is smaller than the radius of the second arcuate surface.

[0014] Due to the adoption of the above technical scheme, a compaction granulator includes a frame, the frame is installed on the frame, a hollow shaft is rotatably installed in the inner cavity of the shell, a center shaft is rotatably installed in the hollow shaft, and the rotation directions of the hollow shaft and the center shaft are opposite, and a hollow shaft driving mechanism that drives the hollow shaft to rotate is provided in the shell, and the center shaft transmission is connected to the center shaft driving mechanism, the lower end of the shell is provided with a granulating shell, the granulating shell is provided with a granulating wheel, the granulating wheel is installed in the center shaft, and the shell is also provided with a feeding chamber above the granulating wheel, the feed chamber is connected with the inner cavity of the granulating shell, a pressing wheel located in the feed chamber is installed on the hollow shaft, and the feed chamber is also connected to the feeding mechanism; the material entering the feed chamber is driven into the granulating shell by the pressing wheel, and the material is squeezed into the mesh of the granulating shell through the rotation of the granulating wheel, and the air is squeezed out. After repeated compaction, the material is extruded from the mesh to form compacted particles that are forcibly separated from the gas, thereby efficiently realizing the compaction of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of an embodiment of the present invention;

[0016] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;

[0017] Figure 3 yes Figure 1 Side view of

[0018] Figure 4 yes Figure 3 A partial enlarged view of position II in the middle;

[0019] Figure 5 Schematic diagram of the matching relationship between the driving gear and the intermediate gear in an embodiment of the present invention;

[0020] Figure 6 is a top view of the granulation wheel in an embodiment of the present invention;

[0021] Figure 7 2 is a schematic structural diagram of a pressure wheel in an embodiment of the present invention;

[0022] Figure 8 2 is a top view of the pressure wheel in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] like Figures 1 to 5As shown, a compaction granulator includes a frame 1, a shell 4 is installed on the frame 1, a hollow shaft 2 is rotatably installed in the inner cavity of the shell 4, a center shaft 3 is rotatably installed in the hollow shaft 2, the rotation directions of the hollow shaft 2 and the center shaft 3 are opposite, a hollow shaft driving mechanism for driving the hollow shaft 2 to rotate is provided in the shell 4, the center shaft 3 is transmission-connected with the center shaft driving mechanism, a granulating shell 5 is provided at the lower end of the shell 4, a granulating wheel 6 is provided in the granulating shell 5, the granulating wheel 6 is installed on the center shaft 3, a feeding chamber 7 located above the granulating wheel 6 is further provided in the shell 4, the feed chamber 7 is communicated with the inner cavity of the granulating shell 5, a pressing wheel 8 located in the feed chamber 7 is installed on the hollow shaft 2, and the feed chamber 7 is also connected with a feeding mechanism. In this embodiment, the material entering the feed chamber is driven into the granulation shell 5 by the pressing wheel. The rotation of the granulation wheel 6 squeezes the material into the mesh of the granulation shell 5, expelling air. The material is repeatedly compacted and squeezed out of the mesh to form compacted granules, which are forcibly separated from the air. The granulation shell includes a chassis and a cylinder 29. The cylinder 29 is fixedly mounted to the chassis and has mesh holes 27 evenly distributed on the cylinder. The central shaft drive mechanism includes an electric motor, which is connected to the central shaft 3 by a gear transmission or chain transmission. The central shaft drive mechanism drives the central shaft to rotate.

[0024] like Figure 1 and Figure 2 As shown, the hollow shaft drive mechanism includes a driving gear 30 fixedly mounted on the central shaft 3 and a gear ring 9 sleeved outside the driving gear 30. The gear ring 9 is fixedly mounted on the hollow shaft 2, and an intermediate gear 10 is engaged between the gear ring 9 and the driving gear 30. This enables the hollow shaft and the central shaft to rotate in opposite directions, so that the granulating wheel and the pressure wheel rotate in opposite directions, thereby improving the efficiency of material transportation between the pressure wheel and the granulating wheel.

[0025] like Figure 2 As shown, the shell 4 includes an upper shell 11 and a lower shell 12, the bottom of the lower shell 12 is provided with the feed chamber 7, the inner wall of the lower shell 11 is provided with an annular partition 14 located above the feed chamber 7, a lower bearing 15 is installed between the upper surface of the annular partition 14 and the hollow shaft 2, and an upper bearing 16 is installed between the upper part of the lower shell 11 and the hollow shaft 2.

[0026] like Figure 2 As shown, an upper mounting ring 17 is fixedly mounted on the upper end of the hollow shaft 2 . The upper mounting ring 17 is located in the inner cavity of the upper shell 11 , and the gear ring 9 is fixedly mounted on the upper mounting ring 17 .

[0027] like Figure 2As shown, the intermediate wheel 10 is fixedly mounted on the intermediate wheel shaft 18 , and the intermediate wheel shaft 18 is rotatably mounted on the upper housing 11 .

[0028] like Figure 7 and Figure 8 As shown, the pressing wheel 8 includes an annular body 19, and a plurality of pressing pieces 20 are fixedly mounted on the outer circumference of the annular body 19. The upper ends of the pressing pieces 20 are inclined along the rotation direction of the pressing pieces 20. As the pressing wheel rotates, the pressing pieces 20 push the material to move obliquely downward along the rotation direction of the pressing wheel, thereby pressing the material into the granulation shell 5.

[0029] like Figure 6 As shown, the granulation wheel 6 includes multiple extrusion parts, each of which includes a head 21 and a root 22. The head 21 deflects relative to the root 22 in the direction of rotation of the granulation wheel 6. The side surface of the head 21 includes an inner plane 23 adjacent to the central axis 3 and an outer arc-shaped surface 24 adjacent to the inner cavity wall of the granulation shell 5. The center of the outer arc-shaped surface 24 coincides with the axis of the granulation wheel 6, thereby ensuring that the material can be effectively squeezed out of the mesh. A guide gap 28 is provided between adjacent extrusion parts. As the granulation wheel rotates, the material entering the guide gap 28 is pushed from the root 22 to the head 21 and squeezed into the mesh. The pressure wheel 8 rotates in opposite directions to the granulation wheel 6, which can ensure that the material can efficiently enter the guide gap 28. As the material in the guide gap 28 decreases, the pressure wheel continuously presses the material into the guide gap 28, ensuring that the compaction and granulation operation can be carried out continuously.

[0030] like Figure 6 As shown, the angle α between the inner plane 23 and the line connecting the intersection of the inner plane 23 and the outer arc surface 24 and the axis of the granulating wheel 6 is ≥25° and ≤45°, and preferably α is 36°.

[0031] like Figure 6 As shown, the head 21 includes a second arcuate surface 25 connected to the outer arcuate surface 24, and also includes a third arcuate surface 26 connected to the inner plane 23. The radius of the third arcuate surface 26 is smaller than the radius of the second arcuate surface 25. The configuration of the inner plane 23 allows material entering the material guide gap to quickly move to the third arcuate surface, move through the adjacent second arcuate surface of the extrusion portion, and quickly enter between the outer arcuate surface and the inner wall of the cylinder, thereby being squeezed into the mesh.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention may also have various changes and improvements, which fall within the scope of the present invention.

Claims

1. A compaction granulator, characterized in that: The invention comprises a frame, a shell is installed on the frame, a hollow shaft is rotatably installed in the inner cavity of the shell, a center shaft is rotatably installed in the hollow shaft, the rotation directions of the hollow shaft and the center shaft are opposite, a hollow shaft driving mechanism for driving the hollow shaft to rotate is provided in the shell, the center shaft transmission is connected with the center shaft driving mechanism, a granulating shell is provided at the lower end of the shell, a granulating wheel is provided in the granulating shell, the granulating wheel is installed on the center shaft, a feeding chamber located above the granulating wheel is further provided in the shell, the feeding chamber is communicated with the inner cavity of the granulating shell, a pressing wheel located in the feeding chamber is installed on the hollow shaft, and the feeding chamber is also connected with a feeding mechanism.

2. The compaction granulator according to claim 1, characterized in that The hollow shaft driving mechanism includes a driving gear fixedly mounted on the central shaft and a gear ring sleeved outside the driving gear. The gear ring is fixedly mounted on the hollow shaft, and an intermediate gear is meshed between the gear ring and the driving gear.

3. The compaction granulator according to claim 2, characterized in that The shell includes an upper shell and a lower shell, the bottom of the lower shell is provided with the feed chamber, the inner wall of the lower shell is provided with an annular partition located above the feed chamber, a lower bearing is installed between the upper surface of the annular partition and the hollow shaft, and an upper bearing is installed between the upper part of the lower shell and the hollow shaft.

4. The compaction granulator according to claim 3, characterized in that The intermediate wheel is fixedly mounted on the intermediate wheel shaft, and the intermediate wheel shaft is rotatably mounted on the upper shell.

5. The compaction granulator according to claim 1, characterized in that The pressing wheel comprises an annular body, and a plurality of pressing pieces are fixedly mounted on the outer circumferential surface of the annular body, and the upper ends of the pressing pieces are inclined along the rotation direction of the pressing pieces.

6. The compaction granulator according to claim 5, characterized in that The granulating wheel includes multiple extrusion parts, each of which includes a head and a root. The head is deflected relative to the root in the opposite direction of rotation of the granulating wheel. The granulating shell includes a chassis and a cylinder. The cylinder is fixedly installed with the chassis, and mesh holes are evenly distributed on the cylinder.

7. The compaction granulator according to claim 6, characterized in that A material guiding gap is provided between adjacent extrusion parts.

8. The compaction granulator according to claim 7, characterized in that The side surface of the head includes an inner plane adjacent to the central axis and an outer arc surface adjacent to the inner cavity wall of the granulation shell, and the center of the outer arc surface coincides with the axis of the granulation wheel.

9. The compaction granulator according to claim 8, characterized in that An angle α between a line connecting an intersection of the inner plane and the outer arc-shaped surface and the axis of the granulating wheel and the inner plane is ≥25° and ≤45°.

10. The compaction granulator according to claim 9, characterized in that The head portion includes a second arcuate surface connected to the outer arcuate surface, and the head portion also includes a third arcuate surface connected to the inner plane, wherein the radius of the third arcuate surface is smaller than the radius of the second arcuate surface.

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