Energy-saving, environment-friendly and efficient double-screw extruder

Abstract

The invention is suitable for the technical field of screw extruders, and provides an energy-saving, environment-friendly and efficient double-screw extruder which comprises a double-screw machine barrel, an annular plate is fixed on the peripheral side surface of the double-screw machine barrel; a rotating ring penetrates through the side surface of the annular plate; a material conveying part is fixed at the end part of the rotating ring; the conveying part comprises a plurality of arc-shaped heat-conducting plates and U-shaped heat-conducting plates which are sequentially connected in a staggered manner; a temperature difference power generation part is clamped between the double-screw machine barrel and the material conveying part; outer heat-insulating cylinders are fixed on the side surfaces of the annular plates; the top of the outer heat insulation cylinder communicates with a storage hopper, and the bottom of the outer heat insulation cylinder communicates with a conveying channel inclining downwards. A feeding funnel is arranged at the top of the double-screw machine barrel in a communicating manner; according to the device, the rotary material conveying part is controlled to drive the temperature difference power generation part to rotate synchronously, the material conveying part transfers raw materials in the material storage hopper, transferring and preheating of the raw materials are achieved, meanwhile, cooling of the cold end is achieved, the power generation efficiency is improved, and efficient recovery of heat of the double-screw extruder is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of screw extruders, and more specifically to an energy-saving, environmentally friendly and efficient twin-screw extruder. Background Art

[0002] In the twin-screw extruder, the material is transported forward in a manner that does not completely fill the screw groove, which has the effect of forcing the material to move forward. At the same time, the twin-screw extruder also has a good dispersing and mixing effect on the material at the meshing point of the two screws.

[0003] Wood plastic board is produced by wood plastic extruder production line, which consists of feed hopper, twin screw extruder, vacuum shaping table, haul-off machine, cutting machine and material rack. The mesh size of wood powder and plastic particles used in wood plastic extruder is 80-120 mesh.

[0004] The twin-screw extruder needs to heat the barrel during the raw material processing process. The plastic particles are extruded and granulated through the barrel heating. The temperature control of the barrel heating is controlled by water cooling. The cooling water enters the barrel to take away the heat, thereby controlling the barrel heating temperature to fluctuate within the set range. However, the water heated by the barrel needs to be cooled by a condenser and then circulated back into the barrel. In this process, the heat of the cooling barrel water will be wasted; at the same time, the existing twin-screw extruder is not equipped with a structure for preheating the raw materials. Therefore, it is very necessary to use the heat generated during the working process of the barrel to preheat the raw materials. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an energy-saving, environmentally friendly and efficient twin-screw extruder, by fitting the hot end of the temperature difference power generation part to the outer wall of the twin-screw barrel, and fitting the cold end and the heat-conducting fins to the arc-shaped heat-conducting plate and the U-shaped heat-conducting plate respectively, and controlling the rotating feeding part to drive the temperature difference power generation part to rotate synchronously, and the feeding part quantitatively transfers the raw materials in the storage funnel to between two adjacent U-shaped heat-conducting plates, and heat exchange occurs between the raw materials and the U-shaped heat-conducting plates to achieve preheating of the raw materials. At the same time, the cold end is cooled, the power generation efficiency is improved, and the efficient recovery of heat from the twin-screw extruder is achieved.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A twin-screw extruder with energy conservation, environmental protection and high efficiency comprises a twin-screw barrel; an annular plate is fixed on the peripheral side of the twin-screw barrel; a swivel is rotatably arranged on the side of the annular plate; a feeding part is fixed on the end of the swivel; the feeding part comprises a plurality of arc-shaped heat-conducting plates and U-shaped heat-conducting plates connected in sequence in an interlaced manner; a temperature difference power generation part is clamped between the twin-screw barrel and the feeding part; an outer heat-insulating cylinder is fixed on the side of the annular plate; a storage funnel is connected to the top of the outer heat-insulating cylinder, and a downward inclined feeding channel is connected to the bottom thereof; a feeding funnel is connected to the top of the twin-screw barrel; a fixing ring is fixed at the bottom discharge port of the feeding channel; a baffle ring is fixed on the side of the fixing ring; a feeding port connected to the feeding funnel is provided on the peripheral side of the baffle ring; a turntable is rotatably arranged on the side of the fixing ring; a plurality of partitions are evenly fixed on the inner peripheral side of the turntable to rotate with the outer peripheral side of the baffle ring.

[0008] The present invention is further configured as follows: the temperature difference power generation part includes a plurality of insulation plates and power generation units that are staggered in sequence; each of the insulation plates and power generation units is arranged concentrically; the power generation unit includes a cold end and a hot end; both the cold end and the hot end are made of insulating ceramic materials; a first copper sheet is fixed to the bottom surface of the cold end; a second copper sheet and a third copper sheet are fixed to the surface of the hot end; the first copper sheet is electrically connected to the second copper sheet and the third copper sheet with an N-type semiconductor and a P-type semiconductor respectively; and heat-conducting fins that are snap-fitted with the U-shaped heat-conducting plate are fixed to the side surfaces of the cold end.

[0009] The present invention is further configured as follows: a first cable is electrically connected between the N-type semiconductor on the power generation unit and the P-type semiconductor on the adjacent power generation unit; the sides of the two adjacent insulation plates are fixedly connected with a positive conductive plate and a negative conductive plate; the second copper sheet and the third copper sheet on one of the power generation units are electrically connected with the positive conductive plate and the negative conductive plate, respectively, by a second cable; the side of the annular plate is fixedly connected with a positive conductive ring rail and a negative conductive ring rail arranged concentrically; the ends of the positive conductive ring rail and the negative conductive ring rail are electrically connected with a positive conductive column and a negative conductive column, respectively; a battery energy storage device is installed on the side of the annular plate; a circuit amplification module is electrically connected between the input end of the battery energy storage device and the positive conductive column and the negative conductive column.

[0010] The present invention is further configured as follows: straight heat exchange tubes are evenly arranged between the inner walls of the storage funnel from top to bottom; a sealing groove is opened at the end of the outer insulation tube; an exhaust part is plugged into the end of the outer insulation tube; the exhaust part includes a positioning ring; a sealing ring that is plugged into the sealing groove is fixed to one side of the positioning ring; a fixing plate that is fixed to the bottom surface of the positioning ring and is fixed to the side of the material conveying channel by fastening bolts.

[0011] The present invention is further configured as follows: an exhaust pipe is evenly penetrated and fixed on the other relative side of the positioning ring; an annular disk is connected between the ends of each of the exhaust pipes; an exhaust fan is fixedly installed on the side of the annular disk; an air disk is fixed on the output end of the exhaust fan; a plurality of ear tubes are evenly connected and arranged on the side of the air disk; the ear tubes are connected to one end of the corresponding heat exchange straight tube through a high-temperature resistant hose; a plurality of ventilation grooves are evenly opened on the side of the annular plate between the arc-shaped heat conduction plate and the outer insulation tube.

[0012] The present invention is further configured as follows: a plurality of heat exchange grooves are evenly opened on the outer peripheral side of the twin-screw barrel; a heat exchange elbow is fixed inside the heat exchange groove; both ends of the heat exchange elbow are respectively connected to a cold water inlet pipe and a hot water outlet pipe; a heat exchange spiral tube is fixed on the peripheral side of the feeding funnel; one end of the heat exchange spiral tube is connected to the hot water outlet pipe, and the other end thereof is connected to an external water supply pipe.

[0013] The present invention is further configured as follows: a gear ring is fixed to the outer peripheral side of the rotating ring; a servo motor is fixedly installed on the side of the annular plate; and a first gear meshing with the gear ring is fixed to the output end of the servo motor through a reducer.

[0014] The present invention is further configured as follows: a gear ring is fixed to the outer peripheral side of the turntable; a drive motor is fixedly installed on the side of the annular plate; and a second gear meshing with the gear ring is fixed to the output end of the drive motor through a reducer.

[0015] The advantages of the present invention are:

[0016] 1. The present invention makes the hot end of the temperature difference power generation part fit the outer wall of the twin-screw barrel, and the cold end and the heat-conducting fins fit the arc-shaped heat-conducting plate and the U-shaped heat-conducting plate respectively, and controls the rotating feeding part to drive the temperature difference power generation part to rotate synchronously. The feeding part quantitatively transfers the raw materials in the storage funnel to between two adjacent U-shaped heat-conducting plates, and heat exchange occurs between the raw materials and the U-shaped heat-conducting plates to achieve preheating of the raw materials. At the same time, the cold end is cooled, the power generation efficiency is improved, the heat of the twin-screw extruder is efficiently recovered, and energy saving and environmental protection are achieved.

[0017] 2. The present invention controls the exhaust part to draw the hot air between adjacent U-shaped heat conduction plates into the heat exchange straight tube inside the storage funnel, thereby preheating the raw materials inside the storage funnel. At the same time, the flowing hot air accelerates the heat exchange of the raw materials between the adjacent U-shaped heat conduction plates, further improving the preheating effect of the raw materials.

[0018] 3. The present invention heats the cold water flowing inside the heat exchange elbow by a twin-screw barrel, and the heated hot water enters the heat exchange spiral tube to preheat the raw materials inside the feeding funnel, further improving the preheating effect of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1The present invention is a schematic structural diagram of an energy-saving, environmentally friendly and efficient twin-screw extruder.

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of the structure without the exhaust part.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the structure from the right view perspective.

[0022] Figure 4 For the present invention Figure 3 A magnified image of area A.

[0023] Figure 5 For the present invention Figure 2 A schematic diagram of the structure from another angle.

[0024] Figure 6 For the present invention Figure 2 Schematic diagram of the structure of the left view.

[0025] Figure 7 For the present invention Figure 6 A magnified view of area B.

[0026] Figure 8 It is a schematic structural diagram of the temperature difference power generation unit of the present invention.

[0027] Fig. 9 It is a structural schematic diagram of the temperature difference power generation unit of the present invention from a front view perspective.

[0028] Fig.10 For the present invention Fig. 9 Magnified view of area C.

[0029] Fig.11 It is a structural schematic diagram of the temperature difference power generation unit of the present invention from a rear view perspective.

[0030] Fig.12 For the present invention Fig.11 Magnified view of area D.

[0031] Fig.13 It is a schematic structural diagram of the air exhaust part of the present invention.

[0032] Fig.14 It is a schematic structural diagram of the air exhaust part of the present invention from another angle.

[0033] In the figure: 1. Twin screw barrel; 2. Ring plate; 3. Rotating ring; 4. Arc-shaped heat conducting plate; 5. U-shaped heat conducting plate; 6. External heat insulating barrel; 7. Storage hopper; 8. Feed channel; 9. Feeding hopper; 10. Fixed ring; 11. Baffle ring; 12. Feeding port; 13. Rotating plate; 14. Baffle; 15. Temperature difference power generation unit; 16. Heat insulating plate; 17. Power generation unit; 18. Cold end; 19. Hot end; 20. First copper sheet; 21. Second copper sheet; 22. Third copper sheet; 23. N-type semiconductor; 24. P-type semiconductor; 25. Heat conducting fin; 26. First cable; 27. Positive conductive plate; 28. Negative conductive plate; 29 , positive electrode conductive ring track; 30, negative electrode conductive ring track; 31, positive electrode conductive column; 32, negative electrode conductive column; 33, battery energy storage device; 34, heat exchange straight pipe; 35, sealing groove; 36, exhaust part; 37, positioning ring; 38, sealing ring; 39, fixing plate; 40, exhaust pipe; 41, annular disk; 42, exhaust fan; 43, wind disk; 44, ear tube; 45, ventilation groove; 46, heat exchange groove; 47, heat exchange elbow; 48, cold water inlet pipe; 49, hot water outlet pipe; 50, heat exchange spiral pipe; 51, gear ring; 52, servo motor; 53, first gear; 54, gear ring; 55, drive motor; 56, second gear. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0036] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0037] For example, see Figure 1-14 , the present invention provides the following technical solutions:

[0038] An energy-saving, environmentally friendly and efficient twin-screw extruder, specifically, comprises a twin-screw barrel 1; an annular plate 2 is fixed to the side surface of the twin-screw barrel 1; a swivel 3 is rotatably provided through the side surface of the annular plate 2; a feeding part is fixed to the end of the swivel 3; the feeding part comprises a plurality of arc-shaped heat conducting plates 4 and U-shaped heat conducting plates 5 which are staggered in sequence; a temperature difference power generation part 15 is clamped between the twin-screw barrel 1 and the feeding part.

[0039] An outer insulation cylinder 6 is fixed to the side of the annular plate 2; a storage funnel 7 is connected to the top of the outer insulation cylinder 6, and a downward inclined conveying channel 8 is connected to the bottom thereof; a feeding funnel 9 is connected to the top of the twin-screw barrel 1; a fixing ring 10 is fixed to the bottom discharge port of the conveying channel 8; a baffle ring 11 is fixed to the side of the fixing ring 10; a feeding port 12 connected to the feeding funnel 9 is provided on the side of the baffle ring 11; a turntable 13 is rotatably provided on the side of the fixing ring 10; a number of partitions 14 that rotate in coordination with the outer side of the baffle ring 11 are evenly fixed to the inner side of the turntable 13.

[0040] The temperature difference power generation unit 15 includes a plurality of heat insulation plates 16 and power generation units 17 which are connected in sequence in an interlaced manner; each heat insulation plate 16 and power generation unit 17 are arranged concentrically; the power generation unit 17 includes a cold end 18 and a hot end 19; both the cold end 18 and the hot end 19 are made of insulating ceramic material.

[0041] Working principle of the first embodiment:

[0042] By fitting the hot end 19 of the temperature difference power generation unit 15 to the outer wall of the twin-screw barrel 1, and fitting the cold end 18 and the heat-conducting fins 25 to the arc-shaped heat-conducting plate 4 and the U-shaped heat-conducting plate 5 respectively, the rotating feeding unit is controlled to drive the temperature difference power generation unit 15 to rotate synchronously, and the feeding unit quantitatively transfers the raw materials in the storage hopper 7 to between two adjacent U-shaped heat-conducting plates 5. Heat exchange occurs between the raw materials and the U-shaped heat-conducting plates 5 to achieve preheating of the raw materials. At the same time, the cold end 18 is cooled, the power generation efficiency is improved, and the efficient recovery of heat from the twin-screw extruder is achieved.

[0043] For example 2, please refer to Figure 1-14 The second embodiment is improved on the basis of the first embodiment as follows. Specifically, a first copper sheet 20 is fixed to the bottom surface of the cold end 18; a second copper sheet 21 and a third copper sheet 22 are fixed to the surface of the hot end 19; the first copper sheet 20 is electrically connected to the second copper sheet 21 and the third copper sheet 22 with an N-type semiconductor 23 and a P-type semiconductor 24 respectively; a heat-conducting fin 25 that is snap-fitted with the U-shaped heat-conducting plate 5 is fixed to the side surface of the cold end 18; the bottom of each heat insulation plate 16 and the bottom of the hot end 19 are rotatably fitted with the outer wall of the twin-screw barrel 1.

[0044] A first cable 26 is electrically connected between the N-type semiconductor 23 on the power generation unit 17 and the P-type semiconductor 24 on the adjacent power generation unit 17; a positive conductive plate 27 and a negative conductive plate 28 are fixedly connected to the sides of two adjacent insulation plates 16; a second cable is electrically connected between the second copper sheet 21 and the third copper sheet 22 on a power generation unit 17 and the positive conductive plate 27 and the negative conductive plate 28, respectively.

[0045] A positive conductive ring rail 29 and a negative conductive ring rail 30 which are arranged concentrically are fixedly connected to the side of the annular plate 2; the ends of the positive conductive ring rail 29 and the negative conductive ring rail 30 are electrically connected to the positive conductive column 31 and the negative conductive column 32 respectively; a battery energy storage device 33 is installed on the side of the annular plate 2; a circuit amplification module is electrically connected between the input end of the battery energy storage device 33 and the positive conductive column 31 and the negative conductive column 32.

[0046] Working principle of the second embodiment:

[0047] The hot end 19 end surface of the power generation unit 17 can be used to absorb the waste heat released by the outer wall of the twin-screw barrel 1, and the exhaust part 36 and the raw materials in the transportation process ensure that the cold end 18 end surface of the power generation unit 17 is cooled during normal operation, so that a temperature difference is generated between the hot end 19 end surface and the cold end 18 end surface of the power generation unit 17, thereby generating current; the adjacent groups of power generation units 17 are connected in series through the corresponding first cables 26, and the current generated by the temperature difference power generation unit 15 can be amplified through the circuit amplification module, and the battery energy storage device 33 can store the current, realize the conversion of thermal energy into electrical energy, and improve the efficient recovery and utilization of the heat energy generated during the operation of the twin-screw extruder.

[0048] When the temperature difference power generation unit 15 rotates together with the feeding unit, its positive conductive plate 27 and negative conductive plate 28 slide on the positive conductive ring rail 29 and negative conductive ring rail 30 respectively, so as to ensure the normal conduction and charging of the temperature difference power generation unit 15 and the battery energy storage device 33; because the temperature difference power generation unit 15 is in a state of consistent and slow rotation, the temperature difference power generation unit 15 and the battery energy storage device 33 cannot be connected by conventional cables, so the positive conductive ring rail 29, the negative conductive ring rail 30 and the positive conductive plate 27, the negative conductive plate 28 are respectively electrically connected by sliding on the positive conductive ring rail 29 to avoid the problem of wire winding (similar to the electrical connection method of the contactor).

[0049] For example 3, please refer to Figure 1-14 The third embodiment is improved on the basis of the second embodiment as follows. Specifically, heat exchange straight pipes 34 are evenly provided from top to bottom between the inner walls of the storage hopper 7; a sealing groove 35 is provided at the end of the outer insulation tube 6; an exhaust part 36 is plugged into the end of the outer insulation tube 6; the exhaust part 36 includes a positioning ring 37; a sealing ring 38 plugged into the sealing groove 35 is fixed on one side of the positioning ring 37; a fixing plate 39 fixed to the bottom of the positioning ring 37 and installed on the side of the material conveying channel 8 by fastening bolts.

[0050] An exhaust pipe 40 is evenly penetrated and fixed on the other opposite side of the positioning ring 37; an annular disk 41 is connected between the ends of each exhaust pipe 40; an exhaust fan 42 is fixedly installed on the side of the annular disk 41; a wind disk 43 is fixed on the output end of the exhaust fan 42; a plurality of ear tubes 44 are evenly connected and arranged on the side of the wind disk 43; the ear tubes 44 are connected to one end of the corresponding heat exchange straight pipe 34 through a high-temperature resistant hose; a plurality of ventilation grooves 45 are evenly opened on the side of the annular plate 2 between the arc-shaped heat conducting plate 4 and the outer insulation tube 6.

[0051] A plurality of heat exchange grooves 46 are evenly arranged on the outer circumferential side of the twin-screw barrel 1; a heat exchange elbow 47 is fixed inside the heat exchange groove 46; both ends of the heat exchange elbow 47 are respectively connected to a cold water inlet pipe 48 and a hot water outlet pipe 49; a heat exchange spiral tube 50 is fixed on the side of the feeding funnel 9; one end of the heat exchange spiral tube 50 is connected to the hot water outlet pipe 49, and the other end thereof is connected to an external water pipe.

[0052] A gear ring 51 is fixed to the outer peripheral side of the rotating ring 3; a servo motor 52 is fixedly installed on the side of the annular plate 2; and a first gear 53 meshing with the gear ring 51 is fixed to the output end of the servo motor 52 via a reducer.

[0053] A gear ring 54 is fixed to the outer peripheral side of the rotating disk 13; a driving motor 55 is fixedly installed on the side of the annular plate 2; and a second gear 56 meshing with the gear ring 54 is fixed to the output end of the driving motor 55 through a reducer.

[0054] Working principle of the third embodiment:

[0055] The first gear 53 is driven to rotate slowly by controlling the start-up servo motor 52, thereby driving the gear ring 51 and the swivel 3 to rotate slowly synchronously. The rotation of the swivel 3 drives the feeding part at its end to rotate slowly synchronously. The raw materials inside the storage hopper 7 fall quantitatively in sequence between the two adjacent U-shaped heat transfer plates 5 to realize the rotational transportation of the raw materials. During the transportation process, the raw materials exchange heat with the hot air between the arc-shaped heat transfer plate 4 and the outer insulation tube 6 to realize preheating of the raw materials during transportation. At the same time, the temperature of the arc-shaped heat transfer plate 4, the U-shaped heat transfer plate 5, the heat transfer fins 25 and the cold end 18 is reduced, that is, the temperature difference between the hot end 19 and the cold end 18 is increased, thereby improving the power generation efficiency.

[0056] When the two adjacent U-shaped heat conducting plates 5 rotate downward, the raw materials therein fall into the feed channel 8 and slide into the turntable 13 along the inner bottom surface of the feed channel 8. The drive motor 55 is controlled to start and drive the second gear 56 to rotate slowly, thereby driving the gear ring 54 and the turntable 13 to rotate slowly. The rotation of the turntable 13 drives each group of partitions 14 to rotate synchronously. The sliding raw materials are fed into the feed port 12 by the rotating partitions 14 and fall into the feed hopper 9, thereby realizing automatic feeding of the twin-screw extruder and improving work efficiency.

[0057] By controlling and starting the exhaust fan 42, external cold air enters through the ventilation slot 45, and the hot air between the arc-shaped heat-conducting plate 4 and the outer insulation tube 6 is extracted, thereby accelerating the flow of hot air in the internal space, further improving the preheating effect and efficiency of the raw materials between the two adjacent U-shaped heat-conducting plates 5, and at the same time, further reducing the temperature of the arc-shaped heat-conducting plate 4, the U-shaped heat-conducting plate 5, the heat-conducting fins 25 and the cold end 18, thereby further improving the power generation efficiency; the hot air after heat exchange enters each group of ear tubes 44 through the wind disk 43, and enters the heat exchange straight tube 34 through the corresponding high-temperature resistant hose, exchanges heat with the raw materials inside the storage funnel 7, and realizes the preheating of the raw materials inside the storage funnel 7.

[0058] The cold water flowing inside the heat exchange elbow 47 is heated by the outer wall of the twin-screw barrel 1, and the heated hot water flows into the heat exchange spiral tube 50 to further preheat the raw materials inside the feeding funnel 9, further improving the preheating effect of the raw materials inside the feeding funnel 9 and improving the melting and molding efficiency of the subsequent twin-screw extruder; by controlling the flow rate of the cold water input, the heating temperature of the twin-screw barrel 11 can be kept within the set range.

[0059] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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.

[0063] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An energy-saving, environmentally friendly and efficient twin-screw extruder, comprising a twin-screw barrel; characterized in that: An annular plate is fixed to the circumferential side of the twin-screw barrel; a rotating ring is rotatably arranged through the side of the annular plate; a feeding part is fixed to the end of the rotating ring; the feeding part includes a plurality of arc-shaped heat-conducting plates and U-shaped heat-conducting plates connected in sequence; a temperature difference power generation part is clamped between the twin-screw barrel and the feeding part; An outer insulation cylinder is fixed on the side of the annular plate; a storage funnel is connected to the top of the outer insulation cylinder, and a downward inclined conveying channel is connected to the bottom; a feeding funnel is connected to the top of the twin-screw barrel; a fixing ring is fixed at the bottom discharge port of the conveying channel; a baffle ring is fixed on the side of the fixing ring; a feeding port connected to the feeding funnel is provided on the side of the baffle ring; a turntable is rotatably provided on the side of the fixing ring; a number of partitions that rotate with the outer side of the baffle ring are evenly fixed on the inner side of the turntable.

2. The energy-saving, environmentally friendly and efficient twin-screw extruder according to claim 1, characterized in that: The temperature difference power generation unit includes a number of insulation plates and power generation units that are staggered in sequence; each of the insulation plates and power generation units is arranged concentrically; the power generation unit includes a cold end and a hot end; both the cold end and the hot end are made of insulating ceramic materials; a first copper sheet is fixed to the bottom surface of the cold end; a second copper sheet and a third copper sheet are fixed to the surface of the hot end; the first copper sheet is electrically connected to the second copper sheet and the third copper sheet with an N-type semiconductor and a P-type semiconductor respectively; heat-conducting fins that are snap-fitted with the U-shaped heat-conducting plate are fixed to the side surfaces of the cold end.

3. The energy-saving, environmentally friendly and efficient twin-screw extruder according to claim 2, characterized in that: A first cable is electrically connected between the N-type semiconductor on the power generation unit and the P-type semiconductor on the adjacent power generation unit; a positive conductive plate and a negative conductive plate are fixedly connected to the sides of the two adjacent heat insulation plates; a second cable is electrically connected between the second copper sheet and the third copper sheet on one power generation unit and the positive conductive plate and the negative conductive plate respectively; The side of the annular plate is fixedly connected with a positive conductive ring rail and a negative conductive ring rail which are arranged concentrically; the ends of the positive conductive ring rail and the negative conductive ring rail are electrically connected with a positive conductive column and a negative conductive column respectively; a battery energy storage device is installed on the side of the annular plate; a circuit amplification module is electrically connected between the input end of the battery energy storage device and the positive conductive column and the negative conductive column.

4. The energy-saving, environmentally friendly and efficient twin-screw extruder according to claim 3 is characterized in that: The inner wall of the storage hopper is evenly penetrated by straight heat exchange pipes from top to bottom; the end of the outer insulation tube is provided with a sealing groove; the end of the outer insulation tube is plugged with an exhaust part; The exhaust part includes a positioning ring; a sealing ring plug-fitted with the sealing groove is fixed on one side of the positioning ring; a fixing plate fixedly mounted on the side of the material conveying channel by fastening bolts is fixed on the bottom surface of the positioning ring.

5. The energy-saving, environmentally friendly and efficient twin-screw extruder according to claim 4 is characterized in that: An exhaust pipe is evenly penetrated and fixed on the other opposite side of the positioning ring; an annular disk is connected between the ends of each exhaust pipe; an exhaust fan is fixedly installed on the side of the annular disk; an air disk is fixed on the output end of the exhaust fan; a number of ear tubes are evenly connected and arranged on the side of the air disk; the ear tubes are connected to one end of the corresponding heat exchange straight pipe through a high-temperature resistant hose; a number of ventilation grooves are evenly opened on the side of the annular plate between the arc-shaped heat conduction plate and the outer insulation tube.

6. The energy-saving, environmentally friendly and efficient twin-screw extruder according to claim 5, characterized in that: A plurality of heat exchange grooves are evenly arranged on the outer peripheral side of the twin-screw barrel; a heat exchange elbow is fixed inside the heat exchange groove; both ends of the heat exchange elbow are respectively connected to a cold water inlet pipe and a hot water outlet pipe; a heat exchange spiral tube is fixed on the peripheral side of the feeding funnel; one end of the heat exchange spiral tube is connected to the hot water outlet pipe, and the other end thereof is connected to an external water supply pipe.

7. The energy-saving, environmentally friendly and efficient twin-screw extruder according to claim 6, characterized in that: A gear ring is fixed on the outer peripheral side of the rotating ring; a servo motor is fixedly installed on the side of the annular plate; and a first gear meshing with the gear ring is fixed on the output end of the servo motor through a reducer.

8. The energy-saving, environmentally friendly and efficient twin-screw extruder according to claim 7, characterized in that: A gear ring is fixed on the outer peripheral side of the turntable; a driving motor is fixedly installed on the side of the annular plate; and a second gear meshing with the gear ring is fixed on the output end of the driving motor through a reducer.

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