Double ring die pelletizer

Abstract

The invention discloses a double-ring die granulator, which belongs to the technical field of granulation, and comprises: a feed hopper, a dispersion cylinder, a mixing cylinder and a pressing device, wherein one side of the feed hopper is connected with the dispersion cylinder, the side of the dispersion cylinder away from the feed hopper is connected with the mixing cylinder, the side of the mixing cylinder away from the dispersion cylinder is connected with the pressing device, a dispersing column is arranged in the dispersion cylinder, and a mixing column is arranged in the mixing cylinder; materials enter through the feed hopper, and then are transported to the dispersion cylinder through the feed hopper, and the materials in the dispersion cylinder are dispersed and separated by the dispersing action of the dispersing column, and after the dispersing and separation, the materials are transported to the mixing cylinder through the dispersion cylinder, and the materials are then mixed with high-pressure steam under the action of the mixing column, so as to facilitate the subsequent materials to be pressed and granulated, and the mixed materials are transported to the pressing chamber, and then a controller controls the pressing device to start, and the materials are extruded from the ring die, and finally the granulation process is completed under the action of the cutter.

Description

Technical Field

[0001] The invention relates to the technical field of granulation, in particular to a double-ring die granulator. Background Art

[0002] Green biomass fuel is an emerging technology that uses biomass as raw material and is a renewable biomass resource. Biomass pellet fuel is a granular fuel that can be directly burned, made from biomass such as straw, wood, and wood waste, through processing, tempering, and extrusion. It is a new type of renewable clean energy with the advantages of large raw material reserves, large-scale production, and easy storage. Wood waste and straw, as one of the most common biomass wastes in life, have good application prospects in the field of biomass pellet fuel manufacturing;

[0003] The existing granulator only breaks up the agglomerated materials before granulation, but the agglomerated materials cannot be completely broken up, which results in that the materials cannot be fully mixed with the steam during the subsequent steam conditioning, thus affecting the quality of the subsequent ring die granulation. Summary of the invention

[0004] The object of the present invention is to provide a double-ring die pelletizer to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A double-ring die pelletizer comprises: a feed hopper, a dispersion cylinder, a mixing cylinder and a pressing device, one side of the feed hopper is connected to the dispersion cylinder, the side of the dispersion cylinder away from the feed hopper is connected to the mixing cylinder, the side of the mixing cylinder away from the dispersion cylinder is connected to the pressing device, a scattering column is arranged in the dispersion cylinder, a mixing column is arranged in the mixing cylinder, high-pressure steam is connected in the mixing cylinder, and the pressing device comprises: a pressing chamber, a ring die is arranged in the pressing chamber;

[0007] The material enters through the feed hopper and is then transported to the dispersion cylinder through the feed hopper. In the dispersion cylinder, the material is dispersed by the dispersion column to break up and separate the agglomerated material. After breaking up and separation, the material is transported to the mixing cylinder through the dispersion cylinder. The material is then mixed with high-pressure steam under the action of the mixing column, which facilitates the subsequent pressing and granulation of the material. The mixed material is transported to the pressing chamber, and then the controller controls the pressing device to start, and the material is squeezed out of the ring die. Finally, the granulation process is completed under the action of the cutter.

[0008] Preferably, an oblique pipe is provided on the side of the feed hopper close to the dispersion cylinder, the feed hopper is connected with the dispersion cylinder through the oblique pipe, a scattering ring is provided in the feed hopper, an electromagnetic coil is provided inside the feed hopper, a plurality of crushing rods are provided on the inner wall of the scattering ring, the plurality of crushing rods are arranged around the axis of the scattering ring, the crushing rods are magnetic conductors, and the side of the crushing rods away from the dispersion cylinder is in a pointed cone shape;

[0009] Before the material enters the feed hopper, the controller controls the electromagnetic coil to start, and the electromagnetic coil immediately generates magnetic force. Since the breaker rod is a magnetic conductor, the magnetic force attracts the breaker rod to generate a rotational force, and then the breaker rod drives the breaking ring to rotate, and the material is put into the feed hopper. After the breaking action of the breaker rod, the agglomerated material is first pre-processed, so that the large pieces of material are broken into several small pieces, and then the small pieces of material fall through the gap between the two breaker rods. The fallen small pieces of material are immediately transported to the inclined pipe, and then transported to the dispersion cylinder through the inclined pipe.

[0010] Preferably, the breaking column is rotatably connected to the dispersion cylinder, a No. 1 motor is arranged on the outer wall of the dispersion cylinder, the driving shaft of the No. 1 motor passes through the dispersion cylinder and is connected to the breaking column, the breaking column is composed of an input cylinder, a dispersion column and an output cylinder, the input cylinder is located on the side of the dispersion cylinder close to the feed hopper, the output cylinder is located on the side of the dispersion cylinder close to the mixing cylinder, the dispersion column is arranged between the input cylinder and the output cylinder, and an output port is arranged between the dispersion cylinder and the mixing cylinder.

[0011] Preferably, an input auger is provided in the input cylinder, an output auger is provided on the outer wall of the output cylinder, a gas delivery port is provided in the output cylinder, a high-pressure steam chamber is provided outside the dispersion cylinder, an air pump is provided in the high-pressure steam chamber, the gas delivery port is connected to the air pump through a pipeline, and a filter is provided on the side of the gas delivery port close to the dispersion column.

[0012] Preferably, the dispersion column is composed of a plurality of dispersion plates, which are arranged around the axis of the dispersion column, a magnet is provided on one side of the dispersion plate, an electromagnet is provided on the side of the dispersion tube close to the dispersion column, a toggle plate is provided on the outer wall of the dispersion plate, and a plurality of No. 1 air outlet pipes are provided on the inner wall of the dispersion tube close to the dispersion column, the No. 1 air outlet pipes are respectively connected to the dispersion tube and the mixing tube, and the No. 1 air outlet pipes are arranged along the tangent direction of the mixing tube;

[0013] Before the small pieces of material enter the dispersion cylinder, the controller controls the No. 1 motor to start, and the driving shaft in the No. 1 motor drives the scattering column to rotate. When the scattering column rotates, the input cylinder drives the input auger to rotate, and the input auger drives the small pieces of material to be transported. The small pieces of material are transported from the input cylinder to the dispersion column. Before the scattering operation is performed, several dispersion plates form a ring, so that the small pieces of material rotate and roll in the dispersion column.

[0014] When the material is dispersed, the controller controls the electromagnet on the inner wall of the dispersion cylinder to start, and the magnetic force generated by the electromagnet attracts the dispersion plate. Since a magnet is arranged on one side of the dispersion plate, the dispersion plate is tilted and rotated under the action of the magnet, that is, a gap appears between two adjacent dispersion plates. When several dispersion plates rotate synchronously, the dispersion plate squeezes the material between the two dispersion plates, so that the material is dispersed after being squeezed, and when the dispersion plate rotates, the material will continuously hit the dispersion plate under the action of the rotation force, and the material is dispersed under the action of the impact. In the process of material dispersion, the controller continuously controls the magnetic force of the electromagnet, so as to realize the repeated switching of the dispersion plate between the closed and open states, so that the material is dispersed under the mutual cooperation of extrusion and impact, thereby improving the efficiency of material dispersion; and by adjusting the magnetic force of the electromagnet, the angle of the tilt rotation of the dispersion plate can be adjusted, thereby changing the size of the distance between two adjacent dispersion plates, and then the degree of material dispersion can be adjusted;

[0015] While the materials are being dispersed, the controller controls the air pump to start, and the air pump delivers the high-pressure steam in the high-pressure steam chamber, and the high-pressure steam is delivered to the dispersion column through the air delivery port. The high-pressure steam moves along the axis of the dispersion column. After the high-pressure steam is input, it contacts the agglomerated materials. The agglomerated materials expand themselves after encountering the high-pressure steam, and then cracks will appear in the agglomerated materials, thereby accelerating the efficiency of material dispersion;

[0016] When a gap appears between two adjacent dispersion plates, the ejected high-pressure steam pushes the dispersed materials to move, and the materials are transported to the space between the dispersion column and the dispersion cylinder through the gap between the two adjacent dispersion plates. Subsequently, the dispersion plate rotates to drive the toggle plate to rotate, and the toggle plate then drives the materials to the side close to the output cylinder. When the output cylinder rotates, it drives the output auger to rotate, and the output auger drives the dispersed materials to the output port, and the materials are then transported to the mixing cylinder through the output port.

[0017] Preferably, a partition column is provided on one side of the mixing cylinder close to the dispersing cylinder, and two dispersing augers are symmetrically provided on the partition column. The two dispersing augers rotate in opposite directions, and a No. 2 motor is provided outside the mixing cylinder, and the driving shaft of the No. 2 motor is connected to the partition column.

[0018] Preferably, the mixing cylinder consists of two mixing chambers, each of which is provided with a mixing column, a bevel gear is provided on the side of the mixing column close to the partition column, the bevel gear is meshed with the dispersion auger for transmission, one end of the mixing column is rotatably connected to the inner wall of the mixing cylinder, and the other end of the mixing column is rotatably connected to the partition column through the bevel gear, a plurality of mixing plates are provided on the surface of the mixing column, the plurality of mixing plates are arranged around the axis of the mixing column, and the mixing plates are made of rubber.

[0019] Preferably, a triangular prism is provided in the mixing barrel, and the triangular prism divides the mixing chamber into two circular chambers. A transition chamber is provided inside the triangular prism, and the transition chamber is connected to the air pump in the high-pressure steam chamber through a pipeline. A plurality of No. 2 air outlet pipes are provided on the triangular prism, and the plurality of No. 2 air outlet pipes are arranged equidistantly along the side of the triangular prism. The No. 2 air outlet pipes are respectively connected to the mixing barrel and the transition chamber, and the No. 2 air outlet pipe forms an angle with the side of the triangular prism, and the No. 2 air outlet pipe is arranged along the tangent direction of the triangular prism.

[0020] Preferably, the No. 1 air outlet pipe and the No. 2 air outlet pipe are arranged opposite to each other;

[0021] When the dispersed materials enter the mixing barrel, the controller controls the No. 2 motor to start, and the starting shaft of the No. 2 motor drives the partition column to rotate, and the rotation of the partition column drives the dispersion auger to rotate. Since the dispersion auger and the bevel gear are in a meshing state, the dispersion auger drives the bevel gear to rotate, and the rotation of the bevel gear drives the mixing column to rotate, and the rotation of the mixing column drives several mixing plates to rotate;

[0022] The material falls from the output port onto the dividing column, and then the material moves under the rotation of the dividing column, so that the material moves to the side close to the mixing column, and then the material is separated in the mixing cylinder. When the material enters the space between the triangular column and the mixing cylinder, the air pump in the high-pressure steam chamber transports the high-pressure steam to the transition chamber through the pipeline, and then the high-pressure steam is transported to the No. 2 air outlet pipe through the transition chamber, and output to the mixing cylinder through the No. 2 air outlet pipe. While the No. 2 air outlet pipe is transporting gas, the high-pressure steam in the dispersion cylinder is transported to the mixing cylinder through the No. 1 air outlet pipe. Since the No. 1 air outlet pipe is arranged along the tangent direction of the mixing cylinder, and the No. 2 air outlet pipe is arranged along the tangent direction of the triangular column, the two high-pressure steam flows along the two circular holes separated by the triangular column. The inner wall of the chamber moves, and the high-pressure steam pushes the material to move as it moves. Finally, the two high-pressure steams meet, and the high-pressure steam blows away the pushed material at the meeting point, and then the blown away material will be fully mixed with the high-pressure steam. Since the No. 2 air outlet pipe forms an angle with the side of the triangular column, the high-pressure steam will push the material to transport the pressing chamber, and the blown away material will encounter the mixing column during movement. When the mixing column rotates, it drives the mixing plate to rotate, and when the mixing plate rotates, it drives the material to move, so that the mixing plate cooperates with the two high-pressure steams, which further improves the efficiency of mixing the material and the high-pressure steam. At the same time, the two high-pressure steams are used to not only push the movement of the material, but also to break up the material, thereby improving the utilization rate of the high-pressure steam.

[0023] Preferably, two pressing chambers are provided, and the two pressing chambers are symmetrically arranged along the axis of the dispersion cylinder. A driving gear is provided on the side of the ring die away from the pressing chamber, a transmission gear is meshed on the driving gear, and a driving gear is provided between the two transmission gears. A No. 3 motor is provided on one side of the pressing device, and a driving shaft of the No. 3 motor is connected to the driving gear.

[0024] The mixed material is conveyed to the pressing chamber through the mixing barrel, and then the controller controls the No. 3 motor to start. The driving shaft of the No. 3 motor drives the driving gear to rotate. When the driving gear rotates, it engages the transmission gear, so that the two transmission gears drive the driving gear to rotate respectively, and then the driving gear drives the ring die to rotate during the rotation process, so that the material is squeezed out of the ring die, and finally the granulation process is completed under the action of the cutter and transported out.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0026] When the material is dispersed, the controller controls the electromagnet on the inner wall of the dispersion cylinder to start, and the magnetic force generated by the electromagnet attracts the dispersion plate. Since a magnet is arranged on one side of the dispersion plate, the dispersion plate is tilted and rotated under the action of the magnet, that is, a gap appears between two adjacent dispersion plates. When several dispersion plates rotate synchronously, the dispersion plate squeezes the material between the two dispersion plates, so that the material is dispersed after being squeezed, and when the dispersion plate rotates, the material will continuously hit the dispersion plate under the action of the rotation force, and the material is dispersed under the action of the impact. In the process of material dispersion, the controller continuously controls the magnetic force of the electromagnet, so as to realize repeated switching of the dispersion plate between the closed and open states, so that the material is dispersed under the mutual cooperation of squeezing and impact, thereby improving the efficiency of material dispersion; and by adjusting the magnetic force of the electromagnet, the angle of the tilt rotation of the dispersion plate can be adjusted, thereby changing the size of the distance between two adjacent dispersion plates, and then the degree of material dispersion can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 is a stereogram of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0030] Figure 3 is a schematic diagram of the structure of the pressing device viewed from above;

[0031] Figure 4 It is a schematic diagram of the structure of the broken column;

[0032] Figure 5 It is a schematic diagram of the internal structure of the scattered column;

[0033] Figure 6 It is a schematic diagram of the internal structure of the mixing cylinder;

[0034] Figure 7 It is a cross-sectional view of the dispersion cylinder and the mixing cylinder;

[0035] Figure 8 It is a schematic diagram of the driving structure of the double ring die;

[0036] In the figure: 1, feed hopper; 11, oblique pipe; 12, breaking ring; 13, breaking rod;

[0037] 2. Dispersion tube; 21. Breaking column; 22. Input tube; 221. Input auger; 23. Dispersion column; 231. Dispersion plate; 232. Toggle plate; 24. Output tube; 241. Output auger; 242. Gas outlet; 25. Output outlet; 26. No. 1 gas outlet pipe;

[0038] 3. Mixing cylinder; 31. Mixing column; 311. Mixing plate; 32. Separation column; 33. Dispersing auger; 34. Triangular column; 341. No. 2 air outlet pipe; 35. Transition chamber;

[0039] 4. Pressing device; 41. Pressing chamber; 42. Ring die. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-Figure 8 , the present invention provides a technical solution:

[0042] The double-ring die pelletizer comprises: a feed hopper 1, a dispersion cylinder 2, a mixing cylinder 3 and a pressing device 4, wherein one side of the feed hopper 1 is connected to the dispersion cylinder 2, the side of the dispersion cylinder 2 away from the feed hopper 1 is connected to the mixing cylinder 3, the side of the mixing cylinder 3 away from the dispersion cylinder 2 is connected to the pressing device 4, a scattering column 21 is arranged in the dispersion cylinder 2, a mixing column 31 is arranged in the mixing cylinder 3, high-pressure steam is connected in the mixing cylinder 3, and the pressing device 4 comprises: a pressing chamber 41, and a ring die 42 is arranged in the pressing chamber 41.

[0043] As a specific embodiment of the present invention, an inclined tube 11 is provided on the side of the feed hopper 1 close to the dispersion cylinder 2, and the feed hopper 1 is connected with the dispersion cylinder 2 through the inclined tube 11. A scattering ring 12 is provided in the feed hopper 1, and an electromagnetic coil is provided inside the feed hopper 1. A plurality of crushing rods 13 are provided on the inner wall of the scattering ring 12, and the plurality of crushing rods 13 are arranged around the axis of the scattering ring 12. The crushing rods 13 are magnetic conductors, and the side of the crushing rods 13 away from the dispersion cylinder 2 is in a pointed cone shape.

[0044] As a specific embodiment of the present invention, the scattering column 21 is rotatably connected to the dispersion cylinder 2, a No. 1 motor is arranged on the outer wall of the dispersion cylinder 2, and the driving shaft of the No. 1 motor passes through the dispersion cylinder 2 and is connected to the scattering column 21, the scattering column 21 is composed of an input cylinder 22, a dispersion column 23 and an output cylinder 24, the input cylinder 22 is located on the side of the dispersion cylinder 2 close to the feed hopper 1, the output cylinder 24 is located on the side of the dispersion cylinder 2 close to the mixing cylinder 3, the dispersion column 23 is arranged between the input cylinder 22 and the output cylinder 24, and an output port 25 is arranged between the dispersion cylinder 2 and the mixing cylinder 3.

[0045] As a specific embodiment of the present invention, an input auger 221 is provided in the input cylinder 22, an output auger 241 is provided on the outer wall of the output cylinder 24, a gas delivery port 242 is provided in the output cylinder 24, a high-pressure steam chamber is provided outside the dispersion cylinder 2, an air pump is provided in the high-pressure steam chamber, the gas delivery port 242 is connected to the air pump through a pipeline, and a filter is provided on the side of the gas delivery port 242 close to the dispersion column 23.

[0046] As a specific embodiment of the present invention, the dispersion column 23 is composed of a plurality of dispersion plates 231, and the plurality of dispersion plates 231 are arranged around the axis of the dispersion column 23, a magnet is provided on one side of the dispersion plate 231, an electromagnet is provided on the side of the dispersion cylinder 2 close to the dispersion column 23, a toggle plate 232 is provided on the outer wall of the dispersion plate 231, and a plurality of No. 1 air outlet pipes 26 are provided on the inner wall of the dispersion cylinder 2 close to the dispersion column 23, the No. 1 air outlet pipes 26 are respectively connected to the dispersion cylinder 2 and the mixing cylinder 3, and the No. 1 air outlet pipe 26 is arranged along the tangent direction of the mixing cylinder 3.

[0047] As a specific embodiment of the present invention, a partition column 32 is provided on the side of the mixing cylinder 3 close to the dispersion cylinder 2, and two dispersion augers 33 are symmetrically arranged on the partition column 32. The two dispersion augers 33 rotate in opposite directions. A No. 2 motor is provided on the outside of the mixing cylinder 3, and the driving shaft of the No. 2 motor is connected to the partition column 32.

[0048] As a specific embodiment of the present invention, the mixing cylinder 3 is composed of two mixing chambers, each of which is provided with a mixing column 31, and a bevel gear is provided on the side of the mixing column 31 close to the partition column 32, and the bevel gear is meshed with the dispersion auger 33 for transmission, one end of the mixing column 31 is rotatably connected to the inner wall of the mixing cylinder 3, and the other end of the mixing column 31 is rotatably connected to the partition column 32 through the bevel gear, and a plurality of mixing plates 311 are provided on the surface of the mixing column 31, and the plurality of mixing plates 311 are arranged around the axis of the mixing column 31, and the mixing plates 311 are made of rubber.

[0049] As a specific embodiment of the present invention, a triangular prism 34 is provided in the mixing barrel 3, and the triangular prism 34 divides the mixing chamber into two circular chambers. A transition chamber 35 is provided inside the triangular prism 34, and the transition chamber 35 is connected to the air pump in the high-pressure steam chamber through a pipeline. A plurality of No. 2 air outlet pipes 341 are provided on the triangular prism 34, and the plurality of No. 2 air outlet pipes 341 are arranged equidistantly along the side of the triangular prism 34, and the No. 2 air outlet pipes 341 are respectively connected to the mixing barrel 3 and the transition chamber 35, and the No. 2 air outlet pipe 341 forms an angle with the side of the triangular prism 34, and the No. 2 air outlet pipe 341 is arranged along the tangent direction of the triangular prism 34.

[0050] As a specific implementation of the present invention, the first air outlet pipe 26 and the second air outlet pipe 341 are arranged opposite to each other.

[0051] As a specific embodiment of the present invention, two pressing chambers 41 are provided, and the two pressing chambers 41 are symmetrically arranged along the axis of the dispersion cylinder 2. A driving gear is provided on the side of the ring mold 42 away from the pressing chamber 41, and a transmission gear is meshed on the driving gear. A driving gear is provided between the two transmission gears, and a No. 3 motor is provided on one side of the pressing device 4, and the driving shaft of the No. 3 motor is connected to the driving gear.

[0052] Working principle of the present invention:

[0053] Before the material enters the feed hopper 1, the controller controls the electromagnetic coil to start, and the electromagnetic coil immediately generates magnetic force. Since the crushing rod 13 is a magnetic conductor, the magnetic force attracts the crushing rod 13 to generate a rotating force, and then the crushing rod 13 drives the breaking ring 12 to rotate. The material is put into the feed hopper 1. After the crushing action of the crushing rod 13, the agglomerated material is first pre-processed so that the large pieces of material are broken into several small pieces of material. Then the small pieces of material fall through the gap between the two crushing rods 13, and the fallen small pieces of material are immediately transported to the inclined pipe 11, and then transported to the dispersion cylinder 2 through the inclined pipe 11;

[0054] Before the small pieces of material enter the dispersion cylinder 2, the controller controls the No. 1 motor to start, and the driving shaft in the No. 1 motor drives the scattering column 21 to rotate. When the scattering column 21 rotates, the input cylinder 22 drives the input auger 221 to rotate, and the input auger 221 drives the small pieces of material to be transported. The small pieces of material are transported from the input cylinder 22 to the dispersion column 23. Before the scattering operation is performed, a plurality of dispersion plates 231 form a ring, so that the small pieces of material rotate and roll in the dispersion column 23.

[0055] When the material is dispersed, the controller controls the electromagnet on the inner wall of the dispersion cylinder 2 to start, and the magnetic force generated by the electromagnet attracts the dispersion plate 231. Since a magnet is provided on one side of the dispersion plate 231, the dispersion plate 231 is tilted and rotated under the action of the magnet, that is, a gap appears between two adjacent dispersion plates 231, and when several dispersion plates 231 rotate synchronously, the dispersion plate 231 squeezes the material between the two dispersion plates 231, so that the material is dispersed after being squeezed, and when the dispersion plate 231 rotates, the material will continuously hit the dispersion plate 231 under the action of the rotation force, and the material is dispersed under the action of the impact. In the process of material dispersion, the controller continuously controls the magnetic force of the electromagnet, so that the dispersion plate 231 is repeatedly switched between the closed and open states, so that the material is dispersed under the mutual cooperation of squeezing and impact; and by adjusting the magnetic force of the electromagnet, the tilting and rotating angle of the dispersion plate 231 can be adjusted, thereby changing the size of the distance between the two adjacent dispersion plates 231, and thus the degree of material dispersion can be adjusted;

[0056] While the materials are being dispersed, the controller controls the air pump to start, and the air pump delivers the high-pressure steam in the high-pressure steam chamber, and the high-pressure steam is delivered to the dispersion column 23 through the air delivery port 242. The high-pressure steam moves along the axis of the dispersion column 21. After the high-pressure steam is input, it contacts the agglomerated materials. The agglomerated materials expand themselves after encountering the high-pressure steam, and then cracks will appear in the agglomerated materials, thereby accelerating the efficiency of material dispersion.

[0057] When a gap appears between two adjacent dispersion plates 231, the ejected high-pressure steam pushes the dispersed materials to move, and the materials are transported to the space between the dispersion column 23 and the dispersion cylinder 2 through the gap between the two adjacent dispersion plates 231. Then, the dispersion plate 231 rotates to drive the toggle plate 232 to rotate, and the toggle plate 232 then drives the materials to be transported to the side close to the output cylinder 24. When the output cylinder 24 rotates, it drives the output auger 241 to rotate, and the output auger 241 drives the dispersed materials to be transported to the output port 25, and the materials are then transported to the mixing cylinder 3 through the output port 25.

[0058] When the dispersed materials enter the mixing barrel 3, the controller controls the No. 2 motor to start, and the starting shaft of the No. 2 motor drives the partition column 32 to rotate, and when the partition column 32 rotates, the dispersion auger 33 is driven to rotate. Since the dispersion auger 33 is in meshing state with the bevel gear, the dispersion auger 33 drives the bevel gear to rotate, and when the bevel gear rotates, the mixing column 31 is driven to rotate, and when the mixing column 31 rotates, the plurality of mixing plates 311 are driven to rotate;

[0059] The material falls from the output port 25 onto the partition column 32, and then the material moves under the rotation of the partition column 32, so that the material moves to the side close to the mixing column 31, and then the material is separated in the mixing barrel 3. When the material enters the space between the triangular column 34 and the mixing barrel 3, the air pump in the high-pressure steam chamber transports the high-pressure steam to the transition chamber 35 through the pipeline, and then the high-pressure steam is transported to the No. 2 air outlet pipe 341 through the transition chamber 35, and output to the mixing barrel 3 through the No. 2 air outlet pipe 341. While the No. 2 air outlet pipe 341 is transporting gas, the high-pressure steam in the dispersion barrel 2 is transported to the mixing barrel 3 through the No. 1 air outlet pipe 26. Since the No. 1 air outlet pipe 26 is arranged along the tangent direction of the mixing barrel 3, and the No. 2 air outlet pipe 341 is arranged along the tangent direction of the triangular column 34, the two high-pressure The steam moves along the inner wall of the two circular chambers separated by the triangular column 34. The high-pressure steam pushes the material to move when it moves. Finally, the two high-pressure steams meet. The high-pressure steam blows away the pushed material at the intersection, and then the blown away material is fully mixed with the high-pressure steam. Since the second air outlet pipe 341 forms an angle with the side of the triangular column 34, the high-pressure steam pushes the material to transport the pressing chamber 41, and the blown away material will encounter the mixing column 31 when it moves. When the mixing column 31 rotates, it drives the mixing plate 311 to rotate, and when the mixing plate 311 rotates, it drives the material to move, so that the mixing plate 311 cooperates with the two high-pressure steams, further improving the efficiency of mixing the material and the high-pressure steam. At the same time, the two high-pressure steams are used to drive the movement of the material and to break up the material.

[0060] The mixed material is conveyed to the pressing chamber 41 through the mixing barrel 3, and then the controller controls the No. 3 motor to start, and the driving shaft of the No. 3 motor drives the driving gear to rotate. When the driving gear rotates, it engages the transmission gear, so that the two transmission gears respectively drive the driving gear to rotate, and then the driving gear drives the ring die 42 to rotate during the rotation process, so that the material is squeezed out of the ring die 42, and finally the granulation process is completed under the action of the cutter and conveyed out.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Double ring die pelletizer, characterized by: include: A feed hopper (1), a dispersion cylinder (2), a mixing cylinder (3) and a pressing device (4), wherein one side of the feed hopper (1) is connected to the dispersion cylinder (2), the side of the dispersion cylinder (2) away from the feed hopper (1) is connected to the mixing cylinder (3), the side of the mixing cylinder (3) away from the dispersion cylinder (2) is connected to the pressing device (4), a scattering column (21) is arranged in the dispersion cylinder (2), a mixing column (31) is arranged in the mixing cylinder (3), high-pressure steam is connected in the mixing cylinder (3), and the pressing device (4) comprises: a pressing chamber (41), and a ring die (42) is arranged in the pressing chamber (41); The scattering column (21) is rotatably connected to the dispersion cylinder (2); a first motor is arranged on the outer wall of the dispersion cylinder (2); a driving shaft of the first motor passes through the dispersion cylinder (2) and is connected to the scattering column (21); the scattering column (21) is composed of an input cylinder (22), a dispersion column (23) and an output cylinder (24); the input cylinder (22) is located on a side of the dispersion cylinder (2) close to the feed hopper (1); the output cylinder (24) is located on a side of the dispersion cylinder (2) close to the mixing cylinder (3); the dispersion column (23) is arranged between the input cylinder (22) and the output cylinder (24); and an output port (25) is arranged between the dispersion cylinder (2) and the mixing cylinder (3); An input auger (221) is arranged in the input cylinder (22), an output auger (241) is arranged on the outer wall of the output cylinder (24), a gas delivery port (242) is arranged in the output cylinder (24), a high-pressure steam chamber is arranged outside the dispersion cylinder (2), an air pump is arranged in the high-pressure steam chamber, the gas delivery port (242) is connected to the air pump through a pipeline, and a filter screen is arranged on one side of the gas delivery port (242) close to the dispersion column (23); The dispersion column (23) is composed of a plurality of dispersion plates (231), and the plurality of dispersion plates (231) are arranged around the axis of the dispersion column (23); a magnet is arranged on one side of the dispersion plate (231); an electromagnet is arranged on the side of the dispersion cylinder (2) close to the dispersion column (23); a toggle plate (232) is arranged on the outer wall of the dispersion plate (231); a plurality of No. 1 air outlet pipes (26) are arranged on the inner wall of the dispersion cylinder (2) close to the dispersion column (23); the No. 1 air outlet pipes (26) are respectively connected to the dispersion cylinder (2) and the mixing cylinder (3); and the No. 1 air outlet pipes (26) are arranged along the tangent direction of the mixing cylinder (3).

2. The double-ring die pelletizer according to claim 1, characterized in that: An inclined pipe (11) is arranged on the side of the feed hopper (1) close to the dispersion cylinder (2), and the feed hopper (1) is connected to the dispersion cylinder (2) through the inclined pipe (11). A scattering ring (12) is arranged inside the feed hopper (1), and an electromagnetic coil is arranged inside the feed hopper (1). A plurality of crushing rods (13) are arranged on the inner wall of the scattering ring (12), and the plurality of crushing rods (13) are arranged around the axis of the scattering ring (12). The crushing rods (13) are magnetic conductors, and the crushing rods (13) are in a pointed cone shape on the side away from the dispersion cylinder (2).

3. The double-ring die pelletizer according to claim 1, characterized in that: A partition column (32) is arranged on one side of the mixing cylinder (3) close to the dispersion cylinder (2), and two dispersion augers (33) are symmetrically arranged on the partition column (32). The two dispersion augers (33) rotate in opposite directions. A second motor is arranged outside the mixing cylinder (3), and the driving shaft of the second motor is connected to the partition column (32).

4. The double-ring die pelletizer according to claim 3, characterized in that: The mixing cylinder (3) is composed of two mixing chambers, each of which is provided with a mixing column (31), a bevel gear is provided on one side of the mixing column (31) close to the partition column (32), the bevel gear is meshed with the dispersion auger (33) for transmission, one end of the mixing column (31) is rotatably connected to the inner wall of the mixing cylinder (3), and the other end of the mixing column (31) is rotatably connected to the partition column (32) via the bevel gear, a plurality of mixing plates (311) are provided on the surface of the mixing column (31), the plurality of mixing plates (311) are arranged around the axis of the mixing column (31), and the mixing plates (311) are made of rubber.

5. The double-ring die pelletizer according to claim 3, characterized in that: A triangular prism (34) is arranged inside the mixing cylinder (3), and the triangular prism (34) divides the mixing chamber into two circular chambers. A transition chamber (35) is arranged inside the triangular prism (34), and the transition chamber (35) is connected to the air pump in the high-pressure steam chamber through a pipeline. A plurality of No. 2 air outlet pipes (341) are arranged on the triangular prism (34), and the plurality of No. 2 air outlet pipes (341) are arranged equidistantly along the side of the triangular prism (34). The No. 2 air outlet pipes (341) are respectively connected to the mixing cylinder (3) and the transition chamber (35), and the No. 2 air outlet pipes (341) form an angle with the side of the triangular prism (34), and the No. 2 air outlet pipes (341) are arranged along the tangent direction of the triangular prism (34).

6. The double-ring die pelletizer according to claim 5, characterized in that: The first air outlet pipe (26) and the second air outlet pipe (341) are arranged opposite to each other.

7. The double-ring die pelletizer according to claim 1, characterized in that: Two pressing chambers (41) are provided, and the two pressing chambers (41) are symmetrically arranged along the axis of the dispersion cylinder (2). A driving gear is provided on the side of the ring die (42) away from the pressing chamber (41), and a transmission gear is meshed on the driving gear. A driving gear is provided between the two transmission gears. A No. 3 motor is provided on one side of the pressing device (4), and a driving shaft of the No. 3 motor is connected to the driving gear.

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