Granulator

Abstract

The invention relates to the technical field of grain cutting machines, in particular to a grain cutting machine which comprises an outer barrel, an inner barrel, a forming disc, a spiral feeding shaft, grain cutting knives and a screening barrel, an electric air cylinder is installed at the top of the screening barrel through an installation frame, the electric air cylinder is rotationally connected with a telescopic rod, and the electric air cylinder is connected with two connecting rods; and one ends of the two connecting rods penetrate through the top of the screening cylinder and are provided with annular sealing columns, the outer walls of the telescopic rods are fixedly connected with gear columns, the top of the screening cylinder is provided with a driving motor, and the outer wall of the output end of the driving motor is fixedly connected with a driving gear connected with the gear columns in a meshed mode. According to the activated carbon screening device, activated carbon particles are screened and cut and formed through the particle cutter, the obtained activated carbon particles fall into the screening cylinder, meanwhile, the interior of the screening cylinder is cleaned through the cleaning mechanism, small-particle activated carbon or crushed raw materials are directly screened and fall back into the outer cylinder to be repeatedly utilized, and the equipment and machining cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pelletizers, in particular to a pelletizer. Background Art

[0002] There are various methods for making activated carbon, among which making activated carbon granules by extrusion is one of the methods; the existing extrusion type activated carbon granulator generally uses a cylinder to drive an extrusion rod to push the material out or a spiral shaft to extrude the material, and then simultaneously uses a cutter to cut and shape the material into granules to make activated carbon granules.

[0003] Then the existing pelletizer directly discharges and collects the activated carbon particles after pelletizing and forming, and then uses a screening machine to screen out some small particles or broken raw materials, and finally reuses these raw materials. This method requires multiple devices for processing, and requires staff to load and unload materials many times, which is time-consuming and labor-intensive. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pelletizer that can directly perform sufficient screening after the activated carbon is pelletized and formed, and the small particles of activated carbon obtained by screening can be directly reused, thereby reducing the waste of raw materials and reducing processing costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: The top of the inner cylinder is provided with a discharge pipe, the discharge end of the discharge pipe passes through the side wall of the outer cylinder, the top of the inner cylinder passes through the discharge pipe and is located inside the screening cylinder. A spacing is set between the inner wall of the discharge pipe and the outer wall of the inner cylinder, and an electric cylinder is installed on the top of the screening cylinder through a mounting frame, and the telescopic end of the electric cylinder passes through the mounting frame and rotates. The cam is connected to the gear train by a telescopic rod, and the other end of the telescopic rod is connected to the rotating shaft of the spiral feeding shaft. The outer wall of the telescopic end of the electric cylinder is symmetrically connected with two connecting rods, one end of the two connecting rods passes through the top of the screening cylinder and is equipped with an annular sealing column, the sealing column is inserted between the outer wall of the inner cylinder and the inner wall of the discharge pipe, the outer wall of the telescopic rod is fixedly connected with a gear column, the gear column is located above the screening cylinder, a driving motor is installed on the top of the screening cylinder, and the outer wall of the output end of the driving motor is fixedly connected with an active gear meshing with the gear column. When the screening cylinder is discharging, the electric cylinder drives the sealing column to rise so that the bottom of the sealing column is separated from the top of the discharge pipe, and the top of the sealing column extends out of the top of the forming disk and surrounds the top of the inner cylinder. When the screening cylinder is screening, the bottom of the sealing column is inserted into the inside of the discharge pipe, and the top of the sealing column is located below the forming disk. The inner cavity of the screening cylinder is equipped with a cleaning mechanism for cleaning the screening cylinder.

[0006] The beneficial effects of the present invention are: When the activated carbon is pelletized, the present invention adds raw materials into the outer cylinder through the feed pipe, and then drives the spiral feed shaft to rotate through the driving motor, so that the raw materials in the outer cylinder are transported upward through the inner cylinder and squeezed out from the discharge hole, and then cut and formed by the pelletizer to obtain activated carbon particles, and the obtained activated carbon particles fall into the screening cylinder, and the inside of the screening cylinder is cleaned by the cleaning mechanism at the same time, so that some small particles of activated carbon or broken raw materials are directly screened and fall back into the outer cylinder for repeated use, so that the activated carbon particles are timely screened and the raw materials are reused, and the equipment and processing costs are reduced; and after the activated carbon particles are screened for a period of time, the connecting rod and the sealing column can be driven to rise by the electric cylinder, so that the bottom of the sealing column is separated from the discharge pipe, and the discharge pipe is opened, so that the activated carbon particles in the screening cylinder can be discharged along the spacing between the discharge pipe and the inner cylinder, so that the activated carbon is discharged, and at the same time, when the activated carbon is discharged, the top of the sealing column rises above the molding disk, so that a blocked space is formed between the molding disk and the sealing column, so that the newly cut and formed activated carbon is prevented from falling into the screening cylinder, and the mixing of the activated carbon particles is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of a pelletizer of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the pelletizer of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A; Figure 4 It is a schematic structural diagram of the inner cylinder and its connecting parts in the pelletizer of the present invention; Figure 5 It is a structural schematic diagram of the electric cylinder and its connecting components in the first embodiment of the present invention; Figure 6 It is a structural schematic diagram of the cleaning mechanism in the first embodiment of the present invention; Figure 7 It is a structural schematic diagram of a receiving frame and its connecting components in the second embodiment of the present invention; Figure 8 It is a schematic diagram of the exploded structure of the receiving frame and its connecting parts in the second embodiment of the present invention; Fig. 9 It is a schematic diagram of the structure of the cleaning mechanism in the third embodiment of the present invention.

[0008] Description of labels: 1. Outer cylinder; 2. Inner cylinder; 3. Feed pipe; 4. Forming plate; 5. Screw feed shaft; 6. Pellet cutter; 7. Screening cylinder; 8. Discharge pipe; 9. Electric cylinder; 10. Telescopic rod; 101. Fixed shaft; 102. Sliding sleeve; 103. Limiting strip; 11. Connecting rod; 12. Sealing column; 121. Undertaking frame; 122. Baffle; 123. Driving member; 1231. Fixed seat; 1232. Second rotating gear; 1233. Rack ; 1234, first limit block; 1235, second limit block; 124, opening; 125, rotating rod; 13, gear column; 14, driving motor; 15, driving gear; 16, cleaning mechanism; 161, incomplete gear; 162, first inner gear ring; 163, outer gear ring; 164, concave connecting seat; 165, cleaning rod; 166, cleaning brush; 167, second inner gear ring; 168, first rotating gear; 17, slag discharge pipe. DETAILED DESCRIPTION

[0009] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0010] Please refer to Figure 1-9 , the technical solution adopted by the present invention is: The top of the inner cylinder is provided with a discharge pipe, the discharge end of the discharge pipe passes through the side wall of the outer cylinder, the top of the inner cylinder passes through the discharge pipe and is located inside the screening cylinder. A spacing is set between the inner wall of the discharge pipe and the outer wall of the inner cylinder, and an electric cylinder is installed on the top of the screening cylinder through a mounting frame, and the telescopic end of the electric cylinder passes through the mounting frame and rotates. The cam is connected to the gear train by a telescopic rod, and the other end of the telescopic rod is connected to the rotating shaft of the spiral feeding shaft. The outer wall of the telescopic end of the electric cylinder is symmetrically connected with two connecting rods, one end of the two connecting rods passes through the top of the screening cylinder and is equipped with an annular sealing column, the sealing column is inserted between the outer wall of the inner cylinder and the inner wall of the discharge pipe, the outer wall of the telescopic rod is fixedly connected with a gear column, the gear column is located above the screening cylinder, a driving motor is installed on the top of the screening cylinder, and the outer wall of the output end of the driving motor is fixedly connected with an active gear meshing with the gear column. When the screening cylinder is discharging, the electric cylinder drives the sealing column to rise so that the bottom of the sealing column is separated from the top of the discharge pipe, and the top of the sealing column extends out of the top of the forming disk and surrounds the top of the inner cylinder. When the screening cylinder is screening, the bottom of the sealing column is inserted into the inside of the discharge pipe, and the top of the sealing column is located below the forming disk. The inner cavity of the screening cylinder is equipped with a cleaning mechanism for cleaning the screening cylinder.

[0011] From the above description, it can be seen that the beneficial effects of the present invention are: When the activated carbon is pelletized, the present invention adds raw materials into the outer cylinder through the feed pipe, and then drives the spiral feed shaft to rotate through the driving motor, so that the raw materials in the outer cylinder are transported upward through the inner cylinder and squeezed out from the discharge hole, and then cut and formed by the pelletizer to obtain activated carbon particles, and the obtained activated carbon particles fall into the screening cylinder, and the inside of the screening cylinder is cleaned by the cleaning mechanism at the same time, so that some small particles of activated carbon or broken raw materials are directly screened and fall back into the outer cylinder for repeated use, so that the activated carbon particles are timely screened and the raw materials are reused, and the equipment and processing costs are reduced; and after the activated carbon particles are screened for a period of time, the connecting rod and the sealing column can be driven to rise by the electric cylinder, so that the bottom of the sealing column is separated from the discharge pipe, and the discharge pipe is opened, so that the activated carbon particles in the screening cylinder can be discharged along the spacing between the discharge pipe and the inner cylinder, so that the activated carbon is discharged, and at the same time, when the activated carbon is discharged, the top of the sealing column rises above the molding disk, so that a blocked space is formed between the molding disk and the sealing column, so that the newly cut and formed activated carbon is prevented from falling into the screening cylinder, and the mixing of the activated carbon particles is avoided.

[0012] Furthermore, the cleaning mechanism includes an incomplete gear, a first inner gear ring and an outer gear ring arranged coaxially, the first inner gear ring and the outer gear ring are both rotatably connected to the top of the inner cavity of the screening cylinder, a plurality of concave connecting seats are fixedly connected at equal angles between the bottoms of the first inner gear ring and the outer gear ring, a cleaning rod is connected to the bottom of the concave connecting seat, and a cleaning brush adapted to the bottom of the inner cavity of the screening cylinder is connected to the bottom of the cleaning rod, the incomplete gear is located between the first inner gear ring and the outer gear ring, and the incomplete gear is meshed and connected with the first inner gear ring and the outer gear ring in sequence.

[0013] From the above description, it can be seen that when cleaning, the incomplete gear first engages with the first inner gear ring to drive the concave connecting seat, the cleaning rod and the cleaning brush to rotate in the forward direction, and then the incomplete gear separates from the first inner gear ring and engages with the outer gear ring to drive the cleaning brush to rotate in the reverse direction. In this way, with the continuous rotation of the incomplete gear, the cleaning brush can rotate back and forth, thereby avoiding the more irregular movement of the activated carbon particles in the screening cylinder during screening, thereby improving the screening efficiency.

[0014] Furthermore, the driving motor is a double-headed motor, and two output ends of the double-headed motor are respectively connected to a driving gear and an incomplete gear.

[0015] From the above description, it can be seen that the double-headed motor is used to synchronously drive the spiral feeding shaft to feed, the pelletizer to cut pellets and the cleaning mechanism to clean, thereby reducing the number of motors used and reducing equipment costs.

[0016] Furthermore, the cross-section of the bottom of the inner cavity of the outer cylinder is conical, and the bottom of the outer cylinder is connected to a slag discharge pipe.

[0017] From the above description, it can be seen that the bottom of the inner cavity of the outer cylinder is set to a conical shape, so that the material in the outer cylinder can flow to the middle, thereby facilitating the loading of the spiral feeding shaft, and the setting of the slag discharge pipe can discharge the residual material in the outer cylinder.

[0018] Furthermore, the bottom of the spiral feeding shaft is inserted into the slag discharge pipe.

[0019] From the above description, it can be seen that inserting the spiral feeding shaft into the slag discharge pipe can prevent the material from accumulating in the slag discharge pipe, that is, the material in the slag discharge pipe can be discharged by the rotation of the spiral feeding shaft, and when the slag discharge pipe is discharging slag, the residual material in the outer cylinder can be quickly discharged by the reverse rotation of the spiral feeding shaft.

[0020] Furthermore, the telescopic rod includes a fixed shaft, the outer wall of the fixed shaft is slidably connected to a sliding sleeve, the outer wall of the fixed shaft is provided with a plurality of limit strips, the inner wall of the sliding sleeve is provided with a limit groove that cooperates with the limit strip, and the gear column is fixedly connected to the outer wall of the sliding sleeve.

[0021] From the above description, it can be seen that when the electric cylinder is extended or retracted, it can drive the sliding sleeve to slide along the fixed axis, thereby realizing the extension and retraction of the telescopic rod, and the mutual cooperation between the limit strip and the limit groove can ensure both linear sliding between the sliding sleeve and the fixed axis and synchronous rotation between the two.

[0022] Furthermore, the side wall of the sealing column is connected to a receiving frame with a hollow bottom through a connecting plate, and the top of the receiving frame is higher than the top of the sealing column, and two baffles for sealing the bottom of the receiving frame are flipped and connected between the inner walls on both sides of the receiving frame, and the two baffles are located on both sides of the inner cylinder, and the two side walls of the receiving frame are symmetrically installed with driving members connected to the two baffles, the connecting rod is connected to the driving member, and the ends of the two baffles close to each other are provided with openings that cooperate with the inner cylinder, and the opposite ends of the baffles are symmetrically fixed with rotating rods, and the rotating rods are connected to the driving member, and the rotating rods are located in the middle position of the baffles.

[0023] From the above description, it can be seen that when the screening cylinder is discharging materials, the receiving frame can rise with the sealing column, and the baffle at the bottom of the receiving frame can flip and close the receiving frame, so that when the pelletizer performs uninterrupted pelletizing, the activated carbon particles produced by pelletizing are thrown into the receiving frame under the action of the pelletizer, so as to avoid the activated carbon particles from accumulating on the forming disk and affecting the subsequent pelletizing operation. After the screening cylinder is discharged, the receiving frame descends with the sealing column, so that the sealing column is reinserted between the discharge pipe and the inner cylinder, and at the same time, the baffle at the bottom of the receiving frame is opened, so that the received activated carbon particles are discharged into the screening cylinder for screening.

[0024] Furthermore, when the screening cylinder is discharging materials, the top of the sealing column is located below the forming disk, and the receiving frame is higher than the forming disk.

[0025] From the above description, it can be seen that the top of the sealing column is located below the molding disk and the receiving frame is higher than the molding disk, so that the activated carbon particles obtained by cutting the molding disk can preferentially enter the height difference between the sealing column and the molding disk, preventing the activated carbon particles from flowing back to the molding disk. The height of the receiving frame is higher than the molding disk, which can prevent the activated carbon particles from being thrown out and falling into the screening cylinder.

[0026] Furthermore, the driving member includes a fixed seat with a hollow interior, the rotating rod is inserted into the inner cavity of the fixed seat and is installed with a second rotating gear, a rack is meshed and connected between the two second rotating gears, and the lower section of the rack is a blank area (that is, the lower section of the rack is not provided with gear teeth meshing with the second rotating gear), the top of the rack is connected to the connecting rod, and the top and bottom of the rack respectively pass through the top and bottom of the fixed seat and are respectively installed with a first limit block and a second limit block.

[0027] From the above description, it can be known that when the connecting rod rises with the electric cylinder, it can drive the rack to rise, so that the second rotating gears on both sides of the gear teeth on both sides of the rack are meshed, thereby driving the second rotating gear and the baffle to flip, so that the baffle closes the bottom of the receiving frame, and then as the rack continues to rise, the second limit block contacts the bottom of the fixed seat and pushes the fixed seat to rise, thereby driving the receiving frame and the sealing column to rise, and when the electric cylinder descends, the second limit block separates from the fixed seat, so that the receiving frame and the sealing column slide downward under the action of their own gravity, and at this time the blank area of ​​the lower section of the rack contacts the second rotating gear, so that the baffle will not flip, only until the gear teeth on both sides of the rack are meshed with the second rotating gear, and then drive the baffles on both sides to flip (at this time the sealing column has been inserted into the gap between the discharge pipe and the inner cylinder), open the bottom of the receiving frame, and discharge the activated carbon particles in the receiving frame into the screening cylinder.

[0028] Please refer to Figures 1 to 6 As shown, the first embodiment of the present invention is: Please refer to Figures 1 to 5A pelletizer comprises an outer cylinder 1 and an inner cylinder 2 which are coaxially arranged, and a gap is provided between the bottom of the inner cylinder 2 and the bottom of the inner cavity of the outer cylinder 1, a feed pipe 3 is connected to the side wall of the outer cylinder 1, a forming disk 4 with a plurality of discharge holes is installed on the top of the inner cylinder 2, the diameter of the forming disk 4 is smaller than the outer diameter of the inner cylinder 2, a spiral feed shaft 5 is rotatably connected to the top of the inner cavity of the inner cylinder 2, the bottom of the spiral feed shaft 5 extends out of the bottom of the inner cylinder 2, the rotating shaft of the spiral feed shaft 5 passes through the forming disk 4 and is equipped with a pelletizer 6, A screening cylinder 7 with a conical bottom cross section is installed on the top of the outer cylinder 1, and the screening hole of the screening cylinder 7 is located in the outer cylinder 1. A discharge pipe 8 is connected to the bottom of the screening cylinder 7. The discharge end of the discharge pipe 8 passes through the side wall of the outer cylinder 1. The top of the inner cylinder 2 passes through the discharge pipe 8 and is located inside the screening cylinder 7. A gap is set between the inner wall of the discharge pipe 8 and the outer wall of the inner cylinder 2. An electric cylinder 9 is installed on the top of the screening cylinder 7 through a mounting frame. The telescopic end of the electric cylinder 9 passes through the mounting frame and is rotatably connected to a telescopic rod 10. The other end of the telescopic rod 10 is connected to the rotating shaft of the spiral feeding shaft 5. The outer wall of the telescopic end of the electric cylinder 9 is symmetrically connected with two connecting rods 11. One end of the two connecting rods 11 passes through the top of the screening cylinder 7 and is installed with an annular sealing column 12. The sealing column 12 is inserted between the outer wall of the inner cylinder 2 and the inner wall of the discharge pipe 8. The outer wall of the telescopic rod 10 is fixedly connected with a gear column 13. The gear column 13 is located above the screening cylinder 7. A driving motor 14 is installed on the top of the screening cylinder 7. The driving motor The outer wall of the output end of 14 is fixedly connected with a driving gear 15 meshing with the gear column 13. When the screening cylinder 7 is discharging, the electric cylinder 9 drives the sealing column 12 to rise so that the bottom of the sealing column 12 is separated from the top of the discharge pipe 8, and the top of the sealing column 12 extends out of the top of the forming disk 4 and surrounds the top of the inner cylinder 2. When the screening cylinder 7 is screening, the bottom of the sealing column is inserted into the discharge pipe 8, and the top of the sealing column 12 is located below the forming disk 4. The inner cavity of the screening cylinder 7 is installed with a cleaning mechanism 16 for cleaning the screening cylinder 7.

[0029] Please refer to Figure 6The cleaning mechanism 16 includes an incomplete gear 161, a first inner gear ring 162 and an outer gear ring 163 which are coaxially arranged. The first inner gear ring 162 and the outer gear ring 163 are both rotatably connected to the top of the inner cavity of the screening cylinder 7. A plurality of concave connecting seats 164 are fixedly connected at equal angles between the bottoms of the first inner gear ring 162 and the outer gear ring 163. A cleaning rod 165 is connected to the bottom of the concave connecting seat 164. A cleaning brush 166 which is adapted to the bottom of the inner cavity of the screening cylinder 7 is connected to the bottom of the cleaning rod 165. The incomplete gear 161 is located at the first inner gear ring 16 2 and the outer gear ring 163, and the incomplete gear 161 is meshed and connected with the first inner gear ring 162 and the outer gear ring 163 in sequence; the concave connecting seat 164 connects the first inner gear ring 162 with the outer gear ring 163, so that when the incomplete gear 161 is meshed with the first inner gear ring 162, it can drive the outer gear ring 163 and the cleaning rod 165 to rotate, and when the incomplete gear 161 is meshed with the outer gear ring 163, it can also drive the first inner gear ring 162 to connect with the cleaning rod 165. The concave shape can avoid interference with the drive shaft of the drive motor 14 during rotation.

[0030] Please refer to Figure 5 The driving motor 14 is a double-headed motor, and two output ends of the double-headed motor are respectively connected to the driving gear 15 and the incomplete gear 161.

[0031] Please refer to Figure 5 The telescopic rod 10 includes a fixed shaft 101, and the outer wall of the fixed shaft 101 is slidably connected to a sliding sleeve 102. The outer wall of the fixed shaft 101 is provided with a plurality of limit strips 103. The inner wall of the sliding sleeve 102 is provided with a limit groove that cooperates with the limit strips 103. The gear column 13 is fixedly connected to the outer wall of the sliding sleeve 102.

[0032] Please refer to Figure 2 The cross-section of the bottom of the inner cavity of the outer cylinder 1 is conical, and the bottom of the outer cylinder 1 is connected to a slag discharge pipe 17 , and the bottom of the spiral feeding shaft 5 is inserted into the slag discharge pipe 17 .

[0033] The working process of the above pelletizer is as follows: When the activated carbon is granulated and formed, the raw material is added into the outer cylinder 1 through the feed pipe 3. Since the bottom of the outer cylinder 1 is a conical structure, the raw material will flow toward the center of the outer cylinder 1. Then the drive motor 14 (double-headed motor) is started, and one output end of the drive motor 14 drives the driving gear 15 to rotate. The driving gear 15 drives the gear column 13, the telescopic rod 10 and the spiral feed shaft 5 to rotate, so that the material in the outer cylinder 1 is transported upward along the inner cylinder 2, and then extruded from the discharge hole of the forming disk 4. At this time, the rotating shaft of the spiral feed shaft 5 can also synchronously drive the pelletizer 6 to rotate, cut the extruded strip material, and perform pelletizing operation. The activated carbon particles obtained by pelletizing are thrown out and fall into the screening cylinder 7.

[0034] At the same time, another output shaft of the driving motor 14 drives the incomplete gear 161 to rotate. The incomplete gear 161 first meshes with the first inner gear ring 162, thereby driving the concave connecting seat 164, the cleaning rod 165 and the cleaning brush 166 to rotate forwardly, cleaning the inner wall of the screening cylinder 7 while also driving the activated carbon particles to flow, thereby improving the screening efficiency. Then the incomplete gear 161 disengages from the first inner gear ring 162 and then meshes with the outer gear ring 163, driving the concave connecting seat 164, the cleaning rod 165 and the cleaning brush 166 to rotate in the opposite direction. Finally, with the continuous rotation of the incomplete gear 161, the cleaning brush 166 is able to rotate back and forth uninterruptedly, thereby causing the material in the screening cylinder 7 to move irregularly to avoid inertia, thereby further improving the screening effect.

[0035] The small particles of activated carbon or unformed materials obtained by screening directly fall into the outer cylinder 1 and are mixed with the materials in the outer cylinder 1, so as to realize the reuse of materials. After screening for a period of time, the electric cylinder 9 is started, and the electric cylinder 9 first drives the sealing column 12 to rise to a certain height through the connecting rod 11. Even if the top of the sealing column 12 is higher than the height of the forming disk 4, the bottom of the sealing column 12 is still inserted in the distance between the discharge pipe 8 and the inner cylinder 2. In this way, it is ensured that when the cleaning brush 166 is cleaning, the newly cut and formed activated carbon particles will accumulate between the sealing column 12 and the forming disk 4 and will not be thrown into the screening cylinder 7, so that the activated carbon particles in the screening cylinder 7 can be fully screened. Then, after a period of time, the electric cylinder 9 is started again to drive the sealing column 12 to rise to a certain height. The column 12 continues to rise, so that the bottom of the sealing column 12 is separated from the discharge pipe 8, thereby opening the distance between the discharge pipe 8 and the inner tube 2, so that the screened activated carbon particles can be discharged from the discharge pipe 8. After the activated carbon particles are completely discharged, the sealing column 12 is lowered by the electric cylinder 9 to re-block the discharge pipe 8, and the activated carbon particles accumulated on the forming disk 4 can be thrown out again and fall into the screening tube 7 for screening. During this process, the gear column 13 still maintains the meshing with the driving gear 15 to achieve uninterrupted pelletizing operation. This reciprocating operation realizes the uninterrupted pelletizing operation and screening operation of the activated carbon particles, so that the formed activated carbon particles can meet the production standards, and the raw materials can be reused in time without causing waste of raw materials. After the processing is completed, the valve of the slag discharge pipe 17 is opened, and the drive motor 14 is rotated in the reverse direction to quickly discharge part of the residual raw materials accumulated in the outer tube 1 through the spiral feeding shaft 5.

[0036] Please refer to Figures 1 to 8 As shown, the second embodiment of the present invention is: The difference between this embodiment and the first embodiment is that: Please refer to Figure 7 and Figure 8 The side walls of the sealing column 12 are connected to a receiving frame 121 with a hollow bottom through a connecting plate, and the top of the receiving frame 121 is higher than the top of the sealing column 12, and two baffles 122 for blocking the bottom of the receiving frame 121 are flipped and connected between the inner walls on the opposite sides of the receiving frame 121, and the two baffles 122 are located on both sides of the inner cylinder 2, and the opposite side walls of the receiving frame 121 are symmetrically installed with driving members 123 connected to the two baffles 122, and the connecting rod 11 is connected to the driving member 123. When the screening cylinder 7 is discharging, the top of the sealing column 12 is located below the forming disk 4, and the receiving frame 121 is higher than the forming disk 4, and the ends of the two baffles 122 close to each other are provided with openings 124 that cooperate with the inner cylinder 2, and the opposite ends of the baffles 122 are symmetrically fixed with rotating rods 125, and the rotating rods 125 are connected to the driving member 123, and the rotating rods 125 are located in the middle position of the baffles 122.

[0037] Please refer to Figure 1 and Figure 2 The driving member 123 includes a fixed seat 1231 with a hollow interior, the rotating rod 125 is inserted into the inner cavity of the fixed seat 1231 and is installed with a second rotating gear 1232, a rack 1233 is meshed and connected between the two second rotating gears 1232, the top of the rack 1233 is connected to the connecting rod 11, the top and bottom of the rack 1233 respectively pass through the top and bottom of the fixed seat 1231 and are respectively installed with a first limit block 1234 and a second limit block 1235.

[0038] The working process of the above pelletizer is as follows: When the sealing column 12 is about to rise for the first time, the connecting rod 11 drives the rack 1233 to slide upward, and then drives the second rotating gear 1232 on both sides to rotate through the rack 1233, so that the two baffles 122 are flipped and blocked the bottom of the receiving frame 121, and then the rack 1233 continues to rise, so that the second limit block 1235 contacts the fixed seat 1231 and drives the receiving frame 121 and the sealing column 12 to rise to a certain height. Even if the height of the top of the receiving frame 121 is higher than the height of the forming disk 4, the bottom of the sealing column 12 is still inserted in the discharge pipe 8. At this time, during the continuous pelletizing process of the pelletizing knife 6, the activated carbon particles obtained by pelletizing can be thrown into the receiving frame 121, thereby preventing the activated carbon particles from accumulating on the forming disk 4, and then the electric cylinder 9 is started again to make the receiving frame 121 and the sealing column 12 continue to rise, so that the sealing column 12 is separated from the discharge pipe 8, and at this time the top height of the sealing column 12 is still lower than the height of the forming disk 4.

[0039] After the activated carbon particles are discharged, the electric cylinder 9 pushes the rack 1233 down. At this time, the empty tooth areas on both sides of the rack 1233 first pass through the two second rotating gears 1232, and the second limit block 1235 is separated from the fixed seat 1231. At this time, the receiving frame 121 and the sealing column 12 slide downward under the action of their own gravity, so that the sealing column 12 is reinserted into the discharge pipe 8, and then the gear teeth on both sides of the rack 1233 mesh with the second rotating gear 1232, driving the baffle 122 to flip and open the receiving frame 121, the activated carbon particles in the receiving frame 121 fall into the screening cylinder 7, and then as the rack 1233 continues to descend (the upper section of the rack 1233 is also an empty tooth area), the second limit block 1235 contacts the top of the fixed seat 1231, so that the second limit block 1235 applies pressure to the fixed seat 1231, the receiving frame 121 and the sealing column 12, so that the sealing column 12 can be fully inserted into the discharge pipe 8, completing the discharge of the activated carbon particles, and realizing uninterrupted production of activated carbon particles in this reciprocating manner.

[0040] Please refer to Figures 1 to 9 As shown, the third embodiment of the present invention is: The difference between this embodiment and the first and second embodiments is that: Please refer to Fig. 9 A second inner gear ring 167 is fixedly connected to the top of the inner cavity of the screening cylinder 7, and the second inner gear ring 167 is located outside the first inner gear ring 162. The cleaning rod 165 is rotatably connected to the concave connecting seat 164. The outer wall of the cleaning rod 165 is fixedly connected to a first rotating gear 168 meshing with the second inner gear ring 167. The cleaning rod 165 and the cleaning brush 166 are hingedly connected through a hinge ball.

[0041] The working process of the above pelletizer is as follows: When the cleaning rod 165 rotates back and forth, the first rotating gear 168 meshes with the second inner gear ring 167 to enable the cleaning rod 165 to rotate on its own, thereby causing the cleaning brush 166 to deflect at an angle, thereby sweeping up the materials accumulated under the screening drum 7, allowing the materials to flow up and down, thereby further improving the screening efficiency. The use of a ball joint for connection allows the cleaning brush 166 to adapt to the shape of the inner wall of the screening drum 7 when rotating on its own.

[0042] In summary, the pelletizer provided by the present invention, when pelletizing activated carbon, adds raw materials into the outer cylinder through the feed pipe, and then drives the spiral feed shaft to rotate through the driving motor, so that the raw materials in the outer cylinder are transported upward through the inner cylinder and squeezed out from the discharge hole, and then cut and formed by the pelletizer to obtain activated carbon particles, and the obtained activated carbon particles fall into the screening cylinder, and the inside of the screening cylinder is cleaned by the cleaning mechanism at the same time, so that some small particles of activated carbon or broken raw materials are directly screened and fall back into the outer cylinder for repeated utilization, so that the timely screening of activated carbon particles and the repeated utilization of raw materials are realized, and the equipment and processing costs are reduced. Moreover, after the activated carbon particles are screened for a period of time, the connecting rod and the sealing column can be driven to rise by the electric cylinder, so that the bottom of the sealing column is separated from the discharge pipe, and the discharge pipe is opened. , so that the activated carbon particles in the screening cylinder can be discharged along the gap between the discharge pipe and the inner cylinder, so as to realize the discharging of the activated carbon. At the same time, when the activated carbon is discharged, the top of the sealing column rises above the forming disk, so that a sealed space is formed between the forming disk and the sealing column, thereby preventing the newly cut and formed activated carbon from falling into the screening cylinder, avoiding the mixing of the activated carbon particles, and making the screening of the activated carbon more thorough. In addition, during the extension and retraction of the electric cylinder, the gear column can always mesh with the active gear to ensure that the spiral feeding shaft and the pelletizing knife can keep rotating at all times, so as to realize uninterrupted pelletizing operation and improve efficiency. At the same time, when the activated carbon particles are cleaned, the cleaning mechanism that rotates back and forth can perform reciprocating cleaning on the activated carbon particles, so that the activated carbon particles can move irregularly, thereby improving the screening effect of the activated carbon particles.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pelletizer, characterized in that: The cam is an axially arranged outer cylinder and an inner cylinder, and a gap is provided between the bottom of the inner cylinder and the bottom of the inner cavity of the outer cylinder, the side wall of the outer cylinder is connected with a feeding pipe, and a forming disk with a plurality of discharge holes is installed on the top of the inner cylinder, the diameter of the forming disk is smaller than the diameter of the inner cylinder, a spiral feeding shaft is rotatably connected to the top of the inner cavity of the inner cylinder, the bottom of the spiral feeding shaft extends out of the bottom of the inner cylinder, the rotating shaft of the spiral feeding shaft passes through the forming disk and is installed with a pelletizing knife, a screening cylinder with a conical bottom cross-section is installed on the top of the outer cylinder, the screening hole of the screening cylinder is located in the outer cylinder, a discharge pipe is connected to the bottom of the screening cylinder, the discharge end of the discharge pipe passes through the side wall of the outer cylinder, the top of the inner cylinder passes through the discharge pipe and is located inside the screening cylinder, a gap is provided between the inner wall of the discharge pipe and the outer wall of the inner cylinder, and an electric cylinder is installed on the top of the screening cylinder through a mounting frame, the telescopic end of the electric cylinder passes through the mounting frame and is rotatably connected There is a telescopic rod, the other end of the telescopic rod is connected to the rotating shaft of the spiral feeding shaft, and the outer wall of the telescopic end of the electric cylinder is symmetrically connected with two connecting rods, one end of the two connecting rods passes through the top of the screening cylinder and is equipped with an annular sealing column, the sealing column is inserted between the outer wall of the inner cylinder and the inner wall of the discharge pipe, the outer wall of the telescopic rod is fixedly connected with a gear column, and the gear column is located above the screening cylinder, and a driving motor is installed on the top of the screening cylinder, and the outer wall of the output end of the driving motor is fixedly connected with an active gear meshing with the gear column. When the screening cylinder is discharging, the electric cylinder drives the sealing column to rise so that the bottom of the sealing column is separated from the top of the discharge pipe, and the top of the sealing column extends out of the top of the forming disk and surrounds the top of the inner cylinder. When the screening cylinder is screening, the bottom of the sealing column is inserted into the inside of the discharge pipe, and the top of the sealing column is located below the forming disk. The inner cavity of the screening cylinder is equipped with a cleaning mechanism for cleaning the screening cylinder.

2. The pelletizer according to claim 1, characterized in that The cleaning mechanism includes an incomplete gear, a first inner gear ring and an outer gear ring arranged coaxially, the first inner gear ring and the outer gear ring are both rotatably connected to the top of the inner cavity of the screening cylinder, a plurality of concave connecting seats are fixedly connected at equal angles between the bottoms of the first inner gear ring and the outer gear ring, a cleaning rod is connected to the bottom of the concave connecting seat, and a cleaning brush adapted to the bottom of the inner cavity of the screening cylinder is connected to the bottom of the cleaning rod, the incomplete gear is located between the first inner gear ring and the outer gear ring, and the incomplete gear is meshed and connected with the first inner gear ring and the outer gear ring in sequence.

3. The pelletizer according to claim 2, characterized in that The driving motor is a double-headed motor, and two output ends of the double-headed motor are respectively connected to a driving gear and an incomplete gear.

4. The pelletizer according to claim 1, characterized in that The cross section of the bottom of the inner cavity of the outer cylinder is conical, and the bottom of the outer cylinder is connected to a slag discharge pipe.

5. The pelletizer according to claim 4, characterized in that The bottom of the spiral feeding shaft is inserted into the slag discharge pipe.

6. The pelletizer according to claim 1, characterized in that: The telescopic rod comprises a fixed shaft, the outer wall of the fixed shaft is slidably connected with a sliding sleeve, the outer wall of the fixed shaft is provided with a plurality of limit strips, the inner wall of the sliding sleeve is provided with limit grooves that cooperate with the limit strips, and the gear column is fixedly connected to the outer wall of the sliding sleeve.

7. The pelletizer according to claim 1, characterized in that: The side wall of the sealing column is connected to a receiving frame with a hollow bottom through a connecting plate, and the top of the receiving frame is higher than the top of the sealing column. Two baffles for sealing the bottom of the receiving frame are flipped and connected between the inner walls on both sides of the receiving frame, and the two baffles are located on both sides of the inner tube. Driving parts connected to the two baffles are symmetrically installed on the opposite side walls of the receiving frame, and the connecting rod is connected to the driving part.

8. The pelletizer according to claim 7, characterized in that An opening that cooperates with the inner cylinder is formed at one end of the two baffles that are close to each other. Rotating rods are symmetrically fixed to opposite ends of the baffles, and the rotating rods are connected to the driving member. The rotating rods are located in the middle of the baffles.

9. The pelletizer according to claim 7, characterized in that: When the screening cylinder is discharging materials, the top of the sealing column is located below the forming disk, and the receiving frame is higher than the forming disk.

10. The pelletizer according to claim 8, characterized in that The driving member includes a fixed seat with a hollow interior, the rotating rod is inserted into the inner cavity of the fixed seat and is installed with a second rotating gear, a rack is meshed and connected between the two second rotating gears, the top of the rack is connected to the connecting rod, the top and bottom of the rack respectively pass through the top and bottom of the fixed seat and are respectively installed with a first limit block and a second limit block.

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