Melting equipment for plastic recovery

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By introducing a combination of lifting spiral blades and heat transfer pipes into the plastic recycling equipment, the heat transfer efficiency is improved, the problems of high energy consumption and heat loss of existing equipment are solved, and more efficient plastic melting and processing are achieved.

CN222346040UActive Publication Date: 2025-01-14HUBEI YOULIAN PLASTIC IND CO LTD

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Patent Information

Application Number: CN202420680738.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-04-03
Publication Date: 2025-01-14
Estimated Expiration: 2034-04-03

AI Technical Summary

Technical Problem

The internal space utilization of existing plastic melting equipment is insufficient and the heat transfer efficiency is low, resulting in high energy consumption and large heat loss.

Method used

A plastic recycling and melting equipment including a lifting assembly, a storage box and a feed pipe is designed. The plastic is lifted through a lifting spiral blade, heated by a heat transfer pipe, and a mechanical check valve is used to achieve continuous loading, and the storage box is completed. The mixing and color change process is used to preheat the feed pipe and crush the plastic to reduce energy loss.

Benefits of technology

It improves heat transfer efficiency, reduces energy consumption, ensures direct heat transfer to plastic, reduces air absorption, and achieves more efficient plastic melting and processing.

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Abstract

The utility model belongs to the technical field of plastic melting, and discloses melting equipment for plastic recovery, which comprises a main machine, a material lifting assembly is fixedly mounted at the top of the main machine, a material guide assembly is arranged at the upper end of the material lifting assembly, a material storage box is connected to the side surface of the material lifting assembly, primary processing equipment is arranged in the material storage box, and the primary processing equipment is connected with the main machine. A feeding pipe is arranged in the material storage box in a penetrating mode, a mechanical one-way valve is arranged in the upper end of the feeding pipe, and the lower end of the feeding pipe penetrates through the material storage box and is connected with the lower end of an inner cavity of the material lifting assembly. Due to the arrangement of the material lifting pipe, plastics can be lifted into the sealing cover under the action of the material lifting spiral blade, and the lifted plastics can be filled on the material lifting spiral blade under the action of gravity, so that the plastics passing through the heat transfer pipe can be ensured to completely wrap the outer surface of the heat transfer pipe; therefore, the heat transferred by the plastic can be directly transferred to the plastic as much as possible, the heat absorption of the air is reduced, and the energy loss is reduced.

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Description

Technical Field

[0001] The utility model belongs to the technical field of plastic melting, in particular to a melting device for plastic recycling. Background Art

[0002] With the continuous development of science and technology, plastic products have been widely used in various fields. When producing the required plastic products, it is usually necessary to melt the plastic particles, so a device specifically for plastic melting is needed; the current melting equipment is to crush the recycled waste plastics and automatically transport them through rollers, and heat them at high temperatures during transportation to melt them. This method can achieve the purpose of continuous melting, but its internal space utilization rate is insufficient, and the spacing between the crushed plastics is often large, resulting in slow heat transfer efficiency and high heat loss in the high-temperature airflow, so it needs to be improved. Utility Model Content

[0003] In order to solve the problems raised in the above background technology, the utility model provides a melting device for plastic recycling, which has the advantage of low energy consumption.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a melting device for plastic recycling, comprising a main machine, a material lifting component is fixedly installed on the top of the main machine, a material guiding component is arranged on the upper end of the material lifting component, a material storage box is connected to the side of the material lifting component, a primary processing equipment is arranged inside the material storage box, a feed pipe is passed through the inside of the material storage box, a mechanical one-way valve is arranged inside the upper end of the feed pipe, and the lower end of the feed pipe passes through the material storage box and is connected to the lower end of the inner cavity of the material lifting component.

[0005] Preferably, the primary processing equipment includes stirring, color changing and modification mechanisms.

[0006] Preferably, the lifting assembly is fixedly connected to the lifting pipe on the top of the main machine, and a transmission rod, a heat transfer pipe and a positioning rod are sequentially arranged in the middle part of the lifting pipe from bottom to top, and the transmission rod, heat transfer pipe and positioning rod are sequentially connected and fixed to each other, and a lifting spiral blade is also arranged inside the lifting pipe, and the lifting spiral blade is fixedly connected to the outside of the transmission rod, the heat transfer pipe and the positioning rod.

[0007] Preferably, a wire core positioning rod is passed through the middle of the heat transfer tube, and both ends of the wire core positioning rod are fixedly connected to the transmission rod and the positioning rod respectively. A thermal resistance wire is arranged between the heat transfer tube and the wire core positioning rod, and both ends of the thermal resistance wire are electrically connected to the main unit.

[0008] Preferably, the material guide assembly includes a sealing cover fixedly connected to the upper end of the material lifting tube, the sealing cover is sealingly connected to the material lifting tube, a positioning material guide rod is provided in the middle of the sealing cover, the top of the positioning material guide rod is fixedly connected to the sealing cover, and the lower end of the positioning material guide rod is connected to the positioning rod through a bearing.

[0009] Preferably, a controller and a motor are disposed inside the main machine, and the upper end of the motor output shaft is fixedly connected to the transmission rod.

[0010] Preferably, the upper end of the material storage box is connected to a connecting pipe, the lower end of the material storage box is connected to a discharge port, the bottom of the sealing cover is connected to a discharge pipe, and the lower end of the discharge pipe is fixedly connected to the upper end of the connecting pipe.

[0011] Preferably, the discharge port includes a discharge pipe fixedly connected to the bottom of the storage box, the lower end of the discharge pipe is threadedly sleeved with a sealing plug, and the interior of the sealing plug is provided with a sealing gasket that fits the bottom of the discharge pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. Due to the setting of the lifting pipe, the utility model can lift the plastic to the inside of the sealing cover under the action of the lifting spiral blade. Under the action of gravity, it can ensure that the lifting spiral blade is full of the lifted plastic, and then ensure that the plastic passing through the heat transfer tube can completely wrap its surface area, so that the heat transferred by it can be directly transferred to the plastic as much as possible, while reducing the absorption of heat by air, thereby reducing energy loss.

[0014] 2. Due to the provision of the storage box, the utility model can not only store the molten plastic temporarily, but also complete the processes of stirring and color changing inside it, and can realize the processes of molding and the like after being directly discharged through the discharge port; and the dissipated heat can be transferred to the crushed plastic through the feed pipe, thereby preheating it.

[0015] 3. Due to the setting of the feed pipe, the utility model can achieve the purpose of automatic continuous feeding under the action of gravity, and the internal extrusion one-way valve can ensure that the crushed plastic can slide smoothly into the feed pipe, while avoiding the reverse loss of heat inside the feed pipe, thereby further reducing energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the front side of the utility model;

[0019] Figure 4 It is a front view of the utility model in front section.

[0020] In the figure: 1. main machine; 2. material lifting assembly; 21. material lifting pipe; 22. transmission rod; 23. positioning rod; 24. heat transfer pipe; 25. material lifting spiral blade; 26. wire core positioning rod; 27. thermal resistance wire; 3. material guiding assembly; 31. sealing cover; 32. positioning material guiding rod; 33. material discharge pipe; 4. material storage box; 5. material feeding pipe; 6. connecting pipe; 7. material discharge port; 71. material discharge pipe; 72. sealing plug; 73. sealing gasket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, the utility model provides a melting device for plastic recycling, comprising a main machine 1, a material lifting component 2 is fixedly installed on the top of the main machine 1, a material guiding component 3 is arranged on the upper end of the material lifting component 2, a material storage box 4 is connected to the side of the material lifting component 2, a primary processing device is arranged inside the material storage box 4, a feed pipe 5 is penetrated inside the material storage box 4, a mechanical one-way valve is arranged inside the upper end of the feed pipe 5, and the lower end of the feed pipe 5 passes through the material storage box 4 and is connected to the lower end of the inner cavity of the material lifting component 2;

[0023] Among them, due to the setting of the feed pipe 5, the purpose of automatic and continuous feeding can be achieved under the action of gravity, and the internal extrusion one-way valve can ensure that the crushed plastic can slide smoothly into the feed pipe 5, while avoiding the reverse loss of heat inside the feed pipe 5, thereby further reducing energy loss.

[0024] like Figure 1 As shown, the primary processing equipment includes stirring, color changing and modification mechanisms;

[0025] Among them, due to the setting of the storage box 4, the melted plastic can be stored temporarily, and the stirring and color changing processes can be completed inside it, and the molding and other processes can be realized after it is directly discharged through the discharge port 7; and the dissipated heat can be transferred to the crushed plastic through the feed pipe 5, thereby preheating it.

[0026] like Figure 3 and Figure 4As shown, the material lifting component 2 is fixedly connected to the material lifting pipe 21 on the top of the main machine 1, and the middle part of the material lifting pipe 21 is provided with a transmission rod 22, a heat transfer pipe 24 and a positioning rod 23 from bottom to top. The transmission rod 22, the heat transfer pipe 24 and the positioning rod 23 are connected in sequence and fixed to each other. The interior of the material lifting pipe 21 is also provided with a material lifting spiral blade 25, and the material lifting spiral blade 25 is fixedly connected to the outside of the transmission rod 22, the heat transfer pipe 24 and the positioning rod 23.

[0027] Among them, due to the setting of the lifting pipe 21, the plastic can be lifted to the inside of the sealing cover 31 under the action of the lifting spiral blade 25, and the lifting spiral blade 25 can be filled with the lifted plastic under the action of gravity, thereby ensuring that the plastic passing through the heat transfer tube 24 can completely wrap its surface area, so that as much heat as possible can be directly transferred to the plastic, thereby reducing the absorption of heat by the air, thereby reducing energy loss.

[0028] like Figure 3 and Figure 4 As shown, a wire core positioning rod 26 is passed through the middle of the heat transfer tube 24, and the two ends of the wire core positioning rod 26 are fixedly connected to the transmission rod 22 and the positioning rod 23 respectively. A thermal resistance wire 27 is arranged between the heat transfer tube 24 and the wire core positioning rod 26, and the two ends of the thermal resistance wire 27 are electrically connected to the host 1;

[0029] Due to the setting of the thermal resistance wire 27, the lifted plastic can be heated with the cooperation of the heat transfer tube 24, and it is located in the middle of the lifting tube 21, and the dissipated heat can be absorbed by the plastics at its upper and lower ends, reducing the probability of the dissipated heat being absorbed by the air.

[0030] like Figure 3 and Figure 4 As shown, the material guide assembly 3 includes a sealing cover 31 fixedly connected to the upper end of the material lifting tube 21, the sealing cover 31 is sealed and connected to the material lifting tube 21, a positioning material guide rod 32 is arranged in the middle of the sealing cover 31, the top of the positioning material guide rod 32 is fixedly connected to the sealing cover 31, and the lower end of the positioning material guide rod 32 is connected to the positioning rod 23 through a bearing;

[0031] Among them, due to the setting of the positioning guide rod 32, the upper end of the positioning rod 23 can be restricted by the bearing, ensuring that the transmission rod 22, the positioning rod 23 and the heat transfer tube 24 can stably drive the lifting spiral blade 25 to rotate, and the inverted cone structure of the positioning guide rod 32 is also conducive to guiding the molten plastic to diffuse around so that it can quickly flow to the lower material pipe 33.

[0032] like Figure 3 As shown, a controller and a motor are disposed inside the host 1 , and the upper end of the motor output shaft is fixedly connected to the transmission rod 22 .

[0033] like Figure 3As shown, the upper end of the storage box 4 is connected to a connecting pipe 6, the lower end of the storage box 4 is connected to a discharge port 7, the bottom of the sealing cover 31 is connected to a discharge pipe 33, and the lower end of the discharge pipe 33 is fixedly connected to the upper end of the connecting pipe 6.

[0034] like Figure 3 and Figure 4 As shown, the discharge port 7 includes a discharge pipe 71 fixedly connected to the bottom of the storage box 4, and a sealing plug 72 is threadedly sleeved on the lower end of the discharge pipe 71. A sealing gasket 73 is arranged inside the sealing plug 72 and fits the bottom of the discharge pipe 71.

[0035] The working principle and use process of this utility model:

[0036] The crushed plastic is introduced into the feed pipe 5 through the mechanical one-way valve at the upper end of the feed pipe 5, and slides to the bottom of the inner cavity of the lifting pipe 21 under the action of gravity. Then, the plastic at the lower end can be lifted into the sealing cover 31 through the lifting spiral blade 25 under the cooperation of the transmission rod 22, the positioning rod 23 and the heat transfer pipe 24. When the plastic passes through the heat transfer pipe 24, the high-temperature heat can be transferred to the plastic through the heat transfer pipe 24 under the action of the internal thermal resistance wire 27, so that it melts and is finally lifted into the sealing cover 31. Under the action of the positioning guide rod 32 and gravity, the molten plastic enters the interior of the storage box 4 through the discharge pipe 33 and the connecting pipe 6, and is finally introduced into other processing equipment through the discharge port 7.

[0037] When the molten high-temperature plastic enters the storage box 4, the high-temperature heat dissipated from its surface can be gathered in the storage box 4 and heat the feed pipe 5, so that it preheats the crushed plastic entering the inside, thereby improving the melting efficiency and reducing the loss of high-temperature heat.

[0038] 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.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A melting device for plastic recycling, comprising a main machine (1), characterized in that: A material lifting component (2) is fixedly mounted on the top of the main machine (1), a material guiding component (3) is arranged at the upper end of the material lifting component (2), a material storage box (4) is connected to the side of the material lifting component (2), a primary processing device is arranged inside the material storage box (4), a material feeding pipe (5) is passed through the inside of the material storage box (4), a mechanical one-way valve is arranged inside the upper end of the material feeding pipe (5), and the lower end of the material feeding pipe (5) passes through the material storage box (4) and is connected to the lower end of the inner cavity of the material lifting component (2).

2. A melting device for plastic recycling according to claim 1, characterized in that: The primary processing equipment includes stirring, color changing and modification mechanisms.

3. A melting device for plastic recycling according to claim 1, characterized in that: The material lifting component (2) is fixedly connected to a material lifting pipe (21) at the top of the main machine (1); a transmission rod (22), a heat transfer pipe (24) and a positioning rod (23) are sequentially arranged in the middle of the material lifting pipe (21) from bottom to top; the transmission rod (22), the heat transfer pipe (24) and the positioning rod (23) are sequentially connected and fixed to each other; a material lifting spiral blade (25) is also arranged inside the material lifting pipe (21); the material lifting spiral blade (25) is fixedly connected to the outside of the transmission rod (22), the heat transfer pipe (24) and the positioning rod (23).

4. A melting device for plastic recycling according to claim 3, characterized in that: A wire core positioning rod (26) is passed through the middle of the heat transfer tube (24), and two ends of the wire core positioning rod (26) are respectively fixedly connected to the transmission rod (22) and the positioning rod (23). A thermal resistance wire (27) is provided between the heat transfer tube (24) and the wire core positioning rod (26), and two ends of the thermal resistance wire (27) are electrically connected to the main unit (1).

5. A melting device for plastic recycling according to claim 3, characterized in that: The material guiding assembly (3) comprises a sealing cover (31) fixedly connected to the upper end of the material raising pipe (21), the sealing cover (31) being sealingly connected to the material raising pipe (21), a positioning material guiding rod (32) being arranged in the middle of the sealing cover (31), the top of the positioning material guiding rod (32) being fixedly connected to the sealing cover (31), and the lower end of the positioning material guiding rod (32) being connected to the positioning rod (23) via a bearing.

6. A melting device for plastic recycling according to claim 3, characterized in that: A controller and a motor are arranged inside the main machine (1), and the upper end of the motor output shaft is fixedly connected to the transmission rod (22).

7. A melting device for plastic recycling according to claim 5, characterized in that: The upper end of the material storage box (4) is connected to a connecting pipe (6), the lower end of the material storage box (4) is connected to a discharge port (7), the bottom of the sealing cover (31) is connected to a discharge pipe (33), and the lower end of the discharge pipe (33) is fixedly connected to the upper end of the connecting pipe (6).

8. A melting device for plastic recycling according to claim 7, characterized in that: The discharge port (7) comprises a discharge pipe (71) fixedly connected to the bottom of the storage box (4); a sealing plug (72) is threadedly sleeved on the lower end of the discharge pipe (71); a sealing gasket (73) is arranged inside the sealing plug (72) and fits the bottom of the discharge pipe (71).