Low-energy-consumption granulator

Abstract

The invention provides a low-energy-consumption granulator, and particularly relates to the technical field of granulators, the low-energy-consumption granulator comprises a granulation mechanism for extrusion molding, a permanent magnet motor in driving connection with the granulation mechanism, a lower feeding mechanism connected with the granulation mechanism and an upper feeding mechanism communicated with the lower feeding mechanism, the granulation mechanism is in closed connection with the lower feeding mechanism, and the upper feeding mechanism is in closed connection with the lower feeding mechanism. The lower feeding mechanism and the upper feeding mechanism are connected in a closed mode. The permanent magnet motor is connected with the buffering vibration assembly, and the lower feeding mechanism is connected with the crushing suction structure. According to the low-energy-consumption granulator, the energy consumption of biological granulation can be reduced, the permanent magnet motor is adopted, the interior of the rotor is hollow, the stability of the system is improved, meanwhile, the buffering vibration assembly is designed, the granulation efficiency is improved, the automatic feeding function is designed, and manpower and cost are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of pellet machines, and in particular relates to a pellet machine with low energy consumption. Background Art

[0002] Energy conservation and environmental protection are the key issues in today's world. Therefore, efficient, new, energy-saving, green and environmentally friendly products have become the focus of research. Biofuel pellet machine is a device used to compress biomass materials such as wood chips, straw, rice husks, etc. into granular fuel. By feeding the raw materials into the pressure chamber inside the equipment and compressing them into granules under high pressure, biofuel pellets can be used as a substitute for traditional petroleum fuels, with the advantages of high combustion value and low pollution. Existing small and medium-sized biofuel pellet machines have the following technical problems when in use:

[0003] (1) The current pellet mill generally uses a motor to drive the roller seat to rotate. The motor is connected to the roller seat through a reduction mechanism. The design of the reduction mechanism will increase wear and lubricant consumption. In addition, the current motor drive also has technical problems such as low operating stability and large rotation fluctuations.

[0004] (3) It does not have an automatic loading function, and most of the loading is done manually, which is time-consuming and labor-intensive, greatly increasing labor costs and affecting production efficiency. In addition, a large amount of dust and impurities will be generated during the discharge, affecting the surrounding environment.

[0005] The present invention proposes a low-energy consumption pellet machine, which is used to solve the above-mentioned technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a low-energy granulator, which solves the technical problem of how to reduce the energy consumption of biological granulation. A permanent magnet motor is used, and the rotor is hollow inside, which helps to increase the stability of the system. At the same time, a buffer vibration component is designed to help speed up the granulation efficiency. At the same time, an automatic feeding function is designed to save manpower and cost.

[0007] A low-energy granulator, comprising a granulating mechanism for extrusion molding, a permanent magnet motor drivingly connected to the granulating mechanism, a lower feeding mechanism connected to the granulating mechanism, and an upper feeding mechanism communicating with the lower feeding mechanism, wherein the granulating mechanism is sealedly connected to the lower feeding mechanism, and the lower feeding mechanism is sealedly connected to the upper feeding mechanism;

[0008] The permanent magnet motor is connected to the buffer vibration component, and the lower feeding mechanism is connected to the crushing and suction structure.

[0009] The granulating mechanism comprises a ring die seat, a ring die coaxially fixed on the ring die seat, a pressure wheel seat and a shell respectively arranged inside and outside the ring die, a pressure wheel rotatably arranged on the pressure wheel seat, a pressure wheel shaft passing through the center of the pressure wheel, and a locking and limiting structure connected to the pressure wheel shaft, and a gap is arranged between the pressure wheel and the inner side of the ring die;

[0010] The bottom end surface of the pressure wheel seat is coaxially connected to the fixed shaft, and the fixed shaft passes through the center of the permanent magnet motor;

[0011] A bearing is coaxially arranged at one end close to the fixed shaft, and a locking structure is connected to the other end of the fixed shaft. A pelletizing structure and an arc rod are also arranged on the outside of the ring die. The arc rod is arranged opposite to the pelletizing structure and is connected to the inner side of the shell through a positioning block.

[0012] Preferably, a heater is disposed on the outer side of the arc-shaped rod; the heater can be used to heat the area in contact with the ring die, which helps to further dry the pellets.

[0013] Among them, in order to simplify the design, the ring die seat, pressure wheel seat and fixed shaft in this scheme are not marked in the accompanying drawings, which is specially explained.

[0014] The permanent magnet motor comprises a stator, a rotor arranged inside the stator, and a hollow shaft passing through the center of the rotor, the bearing is connected to the hollow shaft, and the fixed shaft coaxially passes through the hollow shaft;

[0015] The hollow shaft is coaxially fixedly driven and connected to the ring die base;

[0016] The vibration buffer assembly includes a pressure plate in contact with the outer side of the stator, a spring with one end fixedly connected to the pressure plate, and a limiting column passing through the inner side of the spring. One end of the limiting column is ball-hinged on a positioning rod, and the positioning rod is fixedly connected to the upper feeding mechanism.

[0017] The lower feeding mechanism includes a positioning plate, a driving shaft passing through the center of the positioning plate, a plurality of feeding blades connected to the outside of the driving shaft, and a conveying cylinder 1 and a conveying cylinder 2 coaxially connected to both sides of the positioning plate, respectively. The outer shell is coaxially connected to the positioning plate, and the outer shell is coaxially sleeved on the outside of the conveying cylinder 2. The bottom end of the outer shell is provided with a discharge port and the upper end is provided with a steam extraction port, and the driving shaft is connected to the rotary power mechanism;

[0018] The upper end surface of the conveying cylinder 1 is communicated with the bottom end of the vertical channel, and a manual feeding port is arranged on the outer side of the vertical channel.

[0019] Wherein, the rotating power mechanism includes a power motor and a second transmission belt, and the second transmission belt is connected to a pulley arranged at one end of the driving shaft.

[0020] The upper feeding mechanism includes a horizontal channel whose one end is connected to the top of the vertical channel, a material receiving trough plate connected to the other end of the horizontal channel, a spiral feeding structure passing through the horizontal channel and the material receiving trough plate, and a crushing structure arranged on the material receiving trough plate.

[0021] The spiral feeding structure comprises a feeding shaft, a spiral sheet sleeved on the outside of the feeding shaft, and a rotating motor connected to the feeding shaft.

[0022] The crushing structure comprises a horizontally arranged stirring shaft and a plurality of stirring blades arranged outside the stirring shaft. One end of the stirring shaft is connected to a driving motor through a transmission belt.

[0023] The crushing and suction structure includes a horizontal rod horizontally fixed inside the vertical channel, a column vertically rotatably connected to the horizontal rod, a cutting knife fixed to the top of the column, a fan fixed to the bottom of the column, a bevel gear 1 coaxially connected to the column, a bevel gear 2 meshing with the bevel gear 1, and a driving gear shaft passing through the center of the bevel gear 2, wherein the driving gear shaft is connected to the driving shaft through a power belt.

[0024] The locking and limiting structure includes a locking gear coaxially connected to the pressure wheel shaft, a protrusion fixed to the outside of the locking gear, two threaded rods with one end respectively resting on both sides of the protrusion, and the other end of the threaded rod passes through the fixing block and is provided with a nut.

[0025] The pelletizing structure comprises a telescopic cylinder and a scraper blade fixedly connected to the free end of the telescopic cylinder, and the scraper blade is arranged close to the outer side of the ring die.

[0026] Among them, multiple pelletizing structures can be designed, which are respectively located at different positions outside the ring die to increase the pelletizing efficiency.

[0027] The present invention achieves the following significant effects:

[0028] (1) A hollow shaft is provided, and the fixed shaft is inserted into the hollow shaft. Since the iron core has no potential mechanical loss, the motor operation stability is very reliable. Moreover, its volume and weight are free from the limitations of the traditional iron core, and there is a large expansion design space. The fluctuation frequency and time of the hollow motor are much smaller than those of the traditional motor.

[0029] Moreover, the design of the hollow shaft allows the fixed shaft to be directly connected to the permanent magnet motor, eliminating the need for a gear reduction mechanism, and also avoiding wear and lubricant consumption;

[0030] (2) The permanent magnet motor designed in this scheme eliminates the excitation winding, carbon brushes, and slip ring structure of the excitation generator, reduces the number of failure points and wear parts, and improves the operating reliability compared to ordinary motors;

[0031] (3) The lower feeding structure and the upper feeding structure are designed. The material only needs to be placed in the receiving trough plate. Under the action of spiral feeding and gravity, the material continuously enters the pressing wheel and the ring die, saving manpower and cost and improving production efficiency.

[0032] (4) Although the permanent magnet hollow motor provided in this scheme has the effect of reducing mechanical loss, due to the design of the bearing, it is easy to cause large impact vibration of the motor. The hollow motor is seriously demagnetized under severe vibration, which affects the performance of the permanent magnet motor and affects its stability during long-term use. It is more suitable for operation at low speed. Therefore, in order to solve this problem, a buffer vibration structure and an arc rod are designed in this scheme. By elastically limiting the outer side of the stator, the high-speed operation of the rotor is promoted. At the same time, the arc rod is attached to the outer side of the ring die and closed, so that the area of ​​the outer side of the ring die close to the pelletizing structure is exposed to avoid large pelletizing size.

[0033] (5) The crushing and suction structure designed in this scheme has the following technical effects:

[0034] One is to use a cutting knife to cut the falling materials to make them smaller;

[0035] The second is to use a rotating fan to achieve a suction effect and increase the speed at which the material descends;

[0036] Third, the fan and the steam extraction port work together to help speed up the discharge of steam, while helping to increase the air pressure in the ring die, which helps to extrude the pellets and avoid blockage of the pellet holes on the ring die. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The structure of the pellet machine in the present invention is shown in FIG. Figure 1 .

[0038] Figure 2 The structure of the pellet machine in the present invention is shown in FIG. Figure 2 .

[0039] Figure 3 It is a schematic diagram of the connection structure of the permanent magnet motor, the granulating mechanism and the lower feeding structure in the present invention.

[0040] Figure 4 It is a schematic diagram of the connection structure between the permanent magnet motor and the granulating mechanism in the present invention.

[0041] Figure 5 It is a schematic diagram of the internal structure of the permanent magnet motor in the present invention.

[0042] Figure 6 It is a schematic diagram of the internal structure of the lower feeding structure in the present invention.

[0043] Figure 7 It is a structural schematic diagram of the unloading mechanism and the upper feeding structure in the present invention.

[0044] Figure 8 It is a schematic diagram of the connection structure of the shell and the pelletizing structure in the present invention.

[0045] Fig. 9 It is a schematic structural diagram of the vibration buffer component in the present invention.

[0046] Fig.10 It is a schematic diagram of the connection structure between the crushing and suction structure and the vertical channel in the present invention.

[0047] Among them, the figure marks are: 1, base; 2, shell; 20, crushing and suction structure; 201, fan; 202, column; 203, bevel gear one; 204, horizontal rod; 205, cutting knife; 206, driving gear shaft; 207, bevel gear two; 21, steam extraction port; 22, pelletizing structure; 221, telescopic cylinder; 222, scraper blade; 23, discharge port; 24, arc rod; 25, positioning block; 3, stator; 30, buffer vibration structure; 301, positioning rod; 302, pressure plate; 303, spring; 304, limit column; 31, rotating 1. Bearing; 2. Hollow shaft; 3. Embedded hole; 4. Protective shell; 5. Driving motor; 6. Transmission belt 1; 7. Stirring shaft; 8. Spiral feeding structure; 9. Horizontal channel; 10. Manual feeding port; 11. Vertical channel; 12. Power motor; 13. Transmission belt 2; 131. Pulley; 14. Conveying cylinder 1; 15. Pushing shaft; 151. Feeding blade; 16. Conveying cylinder 2; 17. Ring die; 171. Pressing wheel; 172. Locking gear; 173. Threaded rod; 174. Support plate; 18. Positioning plate; 19. Material receiving trough plate. DETAILED DESCRIPTION

[0048] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0049] See also Figure 1-Figure 8 A low-energy pellet machine comprises a base 1, a pelletizing mechanism for extrusion molding, a permanent magnet motor connected to the pelletizing mechanism, a lower feeding mechanism connected to the pelletizing mechanism, and an upper feeding mechanism connected to the lower feeding mechanism, wherein the pelletizing mechanism is sealedly connected to the lower feeding mechanism, and the lower feeding mechanism is sealedly connected to the upper feeding mechanism. The permanent magnet motor is arranged on the base 1;

[0050] The permanent magnet motor is connected to the buffer vibration component, and the lower feeding mechanism is connected to the crushing and suction structure.

[0051] The granulating mechanism includes a ring die seat, a ring die 17 coaxially fixed on the ring die seat, a pressing wheel seat and a housing 2 respectively arranged inside and outside the ring die 17, a pressing wheel 171 rotatably arranged on the pressing wheel seat, a pressing wheel shaft passing through the center of the pressing wheel 171, and a locking and limiting structure connected to the pressing wheel shaft, and a gap is arranged between the pressing wheel 171 and the inner side of the ring die 17;

[0052] The bottom end surface of the pressure wheel seat is coaxially connected to the fixed shaft, and the fixed shaft passes through the center of the permanent magnet motor;

[0053] A bearing 32 is coaxially arranged at one end close to the fixed shaft, and a locking structure is connected to the other end of the fixed shaft. A pelletizing structure and an arc rod 24 are also arranged on the outside of the ring die 17. The arc rod 24 is arranged opposite to the pelletizing structure and is connected to the inner side of the shell 2 through a positioning block 25.

[0054] Among them, the pelletizing structure is a prior art, for example, a plurality of cutters can be arranged around the outer side of the ring die 17, and the plurality of cutters perform circumferential movement, which will not be described in detail here;

[0055] The permanent magnet motor comprises a stator 3, a rotor 31 arranged inside the stator 3, a hollow shaft 33 passing through the center of the rotor 31, a bearing 32 connected to the hollow shaft 33, and a fixed shaft coaxially passing through the hollow shaft 33;

[0056] The hollow shaft 33 is coaxially fixedly driven and connected with the ring die base;

[0057] The vibration buffering assembly includes a pressure plate 302 in contact with the outer side of the stator 3, a spring 303 fixedly connected to the pressure plate 302 at one end, and a limiting column 304 passing through the inner side of the spring 303. One end of the limiting column 304 is ball-hinged on the positioning rod 301, and the positioning rod 301 is fixedly connected to the upper feeding mechanism.

[0058] When the stator 3 vibrates, the spring 303 helps to buffer the vibration. The multiple springs 303 are located in multiple directions of the stator 3 to ensure that the stator 3 can be constrained in multiple directions to reduce vibration energy, thereby facilitating the rotor 31 to run at a higher speed.

[0059] More preferably, a protective shell 4 is provided on the outer side of one end of the stator 3 ; and an embedding hole 34 is provided at the center of the hollow shaft 33 .

[0060] It should be noted that, in this solution, the stator 3 and the rotor 31 are existing structures or improvements, which are only shown in the drawings for illustration and are hereby explained.

[0061] It should be noted that the ring die seat in the present embodiment rotates driven by the hollow shaft 33, thereby driving the ring die 17 to rotate coaxially, while the fixed shaft and the pressure roller seat do not rotate. Under the action of the locking structure, the fixed shaft and the pressure roller seat are positioned; the locking structure can be any mechanical structure, and in principle, it is sufficient to position the outer end of the fixed shaft, for example, by using bolts, gear limiters, etc. In order to simplify the design, it is no longer marked in the drawings, and this is hereby explained.

[0062] The lower feeding mechanism includes a positioning plate 18, a driving shaft 15 passing through the center of the positioning plate 18, a plurality of feeding blades 151 connected to the outside of the driving shaft 15, a conveying cylinder 14 and a conveying cylinder 2 16 coaxially connected to both sides of the positioning plate 18, a housing 2 coaxially connected to the positioning plate 18, the housing 2 coaxially sleeved on the outside of the conveying cylinder 2 16, a discharge port 23 is provided at the bottom end of the housing 2 and a steam extraction port 21 is provided at the upper end, and the driving shaft 15 is connected to the rotary power mechanism;

[0063] The upper end surface of the conveying cylinder 14 is connected to the bottom end of the vertical channel 11 , and a manual feeding port 10 is arranged on the outer side of the vertical channel 11 .

[0064] The rotary power mechanism includes a power motor 12 and a transmission belt 13, and the transmission belt 13 is connected to a pulley 131 provided at one end of the driving shaft 15. Similarly, a pulley structure is also designed on the motor shaft of the power motor 12, and the pulley 131 is connected to the pulley structure through the transmission belt 13. The pulley 131 and the pulley structure are both prior art and will not be described in detail here.

[0065] The housing 2 is also connected to the stator 3 to fix the conveying cylinder 1 14 and the conveying cylinder 2 16 .

[0066] The upper feeding mechanism includes a horizontal channel 9 whose one end is connected to the top of the vertical channel 11, a material receiving trough plate 19 connected to the other end of the horizontal channel 9, a spiral feeding structure 8 passing through the horizontal channel 9 and the material receiving trough plate 19, and a crushing structure arranged on the material receiving trough plate 19.

[0067] The spiral feeding structure 8 includes a feeding shaft, a spiral sheet sleeved on the outside of the feeding shaft, and a rotating motor connected to the feeding shaft. The two ends of the feeding shaft are respectively rotatably connected to the two ends of the horizontal channel 9. The specific structure of the spiral feeding structure 8 is prior art and will not be described in detail here.

[0068] The crushing structure includes a horizontally arranged stirring shaft 7 and a plurality of stirring blades arranged outside the stirring shaft 7. One end of the stirring shaft 7 is connected to the driving motor 5 through a transmission belt 6.

[0069] The crushing and suction structure includes a horizontal rod 204 horizontally fixed inside the vertical channel 11, a column 202 vertically rotatably connected to the horizontal rod 204, a cutting knife 205 fixed to the top of the column 202, a fan 201 fixed to the bottom of the column 202, a bevel gear 1 203 coaxially connected to the column 202, a bevel gear 207 meshing with the bevel gear 1 203, and a driving gear shaft 206 passing through the center of the bevel gear 207, and the driving gear shaft 206 is connected to the driving shaft 15 through a power belt.

[0070] The structure of the mixing blade can be in any shape, as long as the mixing and crushing effect can be achieved.

[0071] The locking and limiting structure includes a support plate 174, a locking gear 172 coaxially connected to the pressure wheel shaft, a protrusion fixed to the outside of the locking gear 172, two threaded rods 173 with one end respectively resting on both sides of the protrusion, and the other end of the threaded rod 173 passes through the fixing block and is provided with a nut.

[0072] When the locking limit structure is in use, the rotation angle of the protrusion is adjusted by twisting the two opposing threaded rods 173, thereby adjusting the gap between the pressure wheel 171 and the ring die 17. Because the pressure wheel shaft is eccentrically connected to the pressure wheel, the rotation of the pressure wheel shaft can cause a slight change in the actual position of the pressure wheel 171. This is a prior art and will not be described in detail here.

[0073] The pelletizing structure includes a telescopic cylinder 221 and a scraper blade 222 fixedly connected to the free end of the telescopic cylinder 221. The scraper blade 222 is arranged close to the outer side of the ring die 17. The distance between the scraper blade 222 and the ring die 17 is adjusted by the telescopic cylinder 221.

[0074] The scraper blade 222 is an existing structure, which is arranged close to the outer side of the ring die 17 and is used to cut the particles discharged from the ring die 17 into granules.

[0075] The specific working process of the present invention is as follows:

[0076] In this scheme, a lower feeding structure and an upper feeding structure are designed. When in use, the material is placed in the receiving trough plate 19. Under the action of the crushing structure, the large pieces of material are cut into small pieces, which is convenient for transportation and unloading. Under the action of the spiral feeding structure 8, the chopped material is transmitted to the horizontal channel 9 and the vertical channel 11, and enters the conveying cylinder 14. Under the action of the driving shaft 15 and the feeding blade 151, the material is pushed from the conveying cylinder 14 to the conveying cylinder 2 16, and enters the inside of the ring die 17. In the extrusion process between the ring die 17 and the pressure wheel 171, the material is formed and granulated.

[0077] Among them, a shell 2 is provided, and the shell 2 is on the outside of the ring die 17. After the extruded particles are extruded from the ring die 17, they are cut into particles under the action of the pelletizing structure and flow out through the discharge holes designed on the shell 2.

[0078] A hollow shaft 33 is provided, and the hollow shaft 33 is in active contact with the fixed shaft. Since the iron core has no potential mechanical loss, the motor operation stability is very reliable, and its volume and weight are free from the limitations of the traditional iron core, and there is a large expansion design space. The fluctuation frequency and time of the hollow motor are much smaller than those of the traditional motor.

[0079] Moreover, the design of the hollow shaft 33 eliminates the need for a gear reduction mechanism, thereby avoiding wear and lubricant consumption;

[0080] In this scheme, a permanent magnet motor is designed. Since the excitation winding, carbon brush and slip ring structure of the excitation generator are omitted, the failure points and wear parts are reduced, and the operation reliability is improved compared with ordinary motors.

[0081] In this solution, a crushing suction structure is designed, and the driving gear shaft 206 is driven by the power motor 12 to operate.

[0082] One is to use a cutting knife to cut the falling materials to make them smaller;

[0083] The second is to use a rotating fan to achieve a suction effect and increase the speed at which the material descends;

[0084] Third, the fan and the steam extraction port work together to help speed up the discharge of steam, while helping to increase the air pressure in the ring die, which helps to extrude the pellets and avoid blockage of the pellet holes on the ring die.

[0085] Technical features not described in the present invention can be achieved through or by adopting existing technologies and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A low energy consumption pellet machine, characterized in that: It comprises a granulating mechanism for extrusion molding, a permanent magnet motor drivingly connected to the granulating mechanism, a lower feeding mechanism connected to the granulating mechanism, and an upper feeding mechanism communicating with the lower feeding mechanism, wherein the granulating mechanism is sealedly connected to the lower feeding mechanism, and the lower feeding mechanism is sealedly connected to the upper feeding mechanism; The permanent magnet motor is connected to the buffer vibration component, and the lower feeding mechanism is connected to the crushing and suction structure.

2. A low energy consumption pellet machine according to claim 1, characterized in that: The granulating mechanism comprises a ring die seat, a ring die (17) coaxially fixed on the ring die seat, a pressure wheel seat and a housing (2) respectively arranged inside and outside the ring die (17), a pressure wheel (171) rotatably arranged on the pressure wheel seat, a pressure wheel shaft passing through the center of the pressure wheel (171), and a locking and limiting structure connected to the pressure wheel shaft, a gap is arranged between the pressure wheel (171) and the inner side of the ring die (17), the bottom end surface of the pressure wheel seat is coaxially connected to a fixed shaft, and the fixed shaft is arranged passing through the center of the permanent magnet motor; A bearing (32) is coaxially arranged at one end close to the fixed shaft, and the other end of the fixed shaft is connected to a locking structure. A pelletizing structure and an arc rod (24) are also arranged on the outside of the ring die (17). The arc rod (24) is arranged opposite to the pelletizing structure and is connected to the inner side of the housing (2) via a positioning block (25).

3. A low energy consumption pellet machine according to claim 2, characterized in that: The permanent magnet motor comprises a stator (3), a rotor (31) arranged inside the stator (3), and a hollow shaft (33) passing through the center of the rotor (31); the bearing (32) is connected to the hollow shaft (33); the fixed shaft coaxially passes through the hollow shaft (33); and the hollow shaft (33) is coaxially fixedly drivingly connected to the ring die seat; The vibration buffer component comprises a pressure plate (302) contacting and connected to the outer side of the stator (3), a spring (303) having one end fixedly connected to the pressure plate (302), and a limiting column (304) penetrating the inner side of the spring (303), wherein one end of the limiting column (304) is ball-hinged on a positioning rod (301), and the positioning rod (301) is fixedly connected to the upper feeding mechanism.

4. A low energy consumption pellet machine according to claim 1, characterized in that: The lower feeding mechanism comprises a positioning plate (18), a driving shaft (15) passing through the center of the positioning plate (18), a plurality of feeding blades (151) connected to the outside of the driving shaft (15), and a conveying cylinder 1 (14) and a conveying cylinder 2 (16) respectively coaxially connected to both sides of the positioning plate (18); the outer shell (2) is coaxially connected to the positioning plate (18); the outer shell (2) is coaxially sleeved on the outside of the conveying cylinder 2 (16); a discharge port (23) is arranged at the bottom end of the outer shell (2) and a steam extraction port (21) is arranged at the upper end; and the driving shaft (15) is connected to a rotary power mechanism; The upper end surface of the conveying cylinder 1 (14) is connected to the bottom end of the vertical channel (11), and a manual feeding port (10) is provided on the outer side of the vertical channel (11).

5. A low energy consumption pellet machine according to claim 4, characterized in that: The upper feeding mechanism comprises a horizontal channel (9) having one end connected to the top end of the vertical channel (11), a material receiving trough plate (19) connected to the other end of the horizontal channel (9), a spiral feeding structure (8) passing through the horizontal channel (9) and the material receiving trough plate (19), and a crushing structure arranged on the material receiving trough plate (19).

6. A low energy consumption pellet machine according to claim 5, characterized in that: The spiral feeding structure (8) comprises a feeding shaft, a spiral sheet sleeved on the outside of the feeding shaft, and a rotating motor connected to the feeding shaft.

7. A low energy consumption pellet machine according to claim 5, characterized in that: The crushing structure comprises a horizontally arranged stirring shaft (7) and a plurality of stirring blades arranged outside the stirring shaft (7); one end of the stirring shaft (7) is connected to a driving motor (5) via a transmission belt (6).

8. A low energy consumption pellet machine according to claim 4, characterized in that: The crushing and suction structure comprises a horizontal rod (204) horizontally fixed inside the vertical channel (11), a column (202) vertically rotatably connected to the horizontal rod (204), a cutting knife (205) fixed to the top of the column (202), a fan (201) fixed to the bottom of the column (202), a bevel gear 1 (203) coaxially connected to the column (202), a bevel gear 2 (207) meshingly connected to the bevel gear 1 (203), and a driving gear shaft (206) passing through the center of the bevel gear 2 (207), wherein the driving gear shaft (206) is connected to the driving shaft (15) via a power belt.

9. A low energy consumption pellet machine according to claim 2, characterized in that: The locking and limiting structure comprises a locking gear (172) coaxially connected to the pressure wheel shaft, a protrusion fixed to the outside of the locking gear (172), two threaded rods (173) with one end respectively abutting against two sides of the protrusion, and the other end of the threaded rod (173) passes through the fixing block and is provided with a nut.

10. A low energy consumption pellet machine according to claim 2, characterized in that: The pelletizing structure comprises a telescopic cylinder (221) and a scraper blade (222) fixedly connected to the free end of the telescopic cylinder (221), wherein the scraper blade (222) is arranged close to the outer side of the ring die (17).

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