A heating and melting device for modified plastic production

Abstract

The utility model discloses a heating melting device for modified plastics production, include: heating cavity, extend along the horizontal direction and have the feeding end and the discharge end, multilayer heat conduction structure sets up in the outer wall of heating cavity, spiral propulsion mechanism, install in the inside of heating cavity, the inner wall of heating cavity upper and lower two sides is wavy, be equipped with a plurality of micropore on wavy inner wall, multilayer heat conduction structure includes the metal heat conduction layer, heat insulation buffer layer and radiation reflection layer that set gradually from inside to outside, the metal heat conduction layer is close -knit heating cavity's outer wall. The utility model discloses a heating melting device for modified plastics production through the combination design of multilayer heat conduction structure and wavy inner wall, has realized the even distribution of heat, has reduced the occurrence of local overheating phenomenon, through the variable spacing design of spiral propulsion mechanism, has solved the problem of equipment operation instability when high viscosity material processing.

Description

Technical Field

[0001] This utility model relates to the field of modified plastics production technology, specifically to a heating and melting device for modified plastics production. Background Technology

[0002] Modified plastics refer to new materials obtained by improving the properties of ordinary plastics through physical or chemical methods, exhibiting superior performance in terms of strength, toughness, and heat resistance. Compared to ordinary plastics, modified plastics require heating and melting before molding, thus placing higher demands on the performance of the heating and melting equipment. With the continuous expansion of applications for modified plastics, the requirements for their production efficiency and quality are also increasing. As a key piece of equipment in modified plastic production, the heating and melting equipment's heating efficiency and temperature control capabilities directly affect product quality and production energy consumption. However, existing heating and melting equipment has certain limitations in practical use, particularly in terms of heating uniformity and energy consumption control, which still require improvement.

[0003] Currently, most commercially available heating and melting devices use traditional resistance heating. While this method is simple in structure, it suffers from uneven heat distribution, which can easily lead to localized overheating or material degradation. Furthermore, because modified plastics typically have high melting temperatures, traditional devices consume a lot of energy during the heating process and lose heat quickly, further increasing production costs.

[0004] Based on the above, this utility model proposes a heating and melting device for the production of modified plastics, which can effectively solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a heating and melting device for the production of modified plastics. This heating and melting device for the production of modified plastics achieves uniform heat distribution and reduces the occurrence of localized overheating through a combination of a multi-layer heat-conducting structure and a corrugated inner wall. The variable-pitch design of the spiral propulsion mechanism solves the problem of unstable equipment operation when handling high-viscosity materials. The addition of a preheating chamber further improves the heating efficiency of the device.

[0006] This utility model is achieved through the following technical solution:

[0007] A heating and melting apparatus for producing modified plastics, comprising:

[0008] The heating chamber extends horizontally and has an inlet end and an outlet end;

[0009] A multi-layer thermally conductive structure is disposed on the outer wall of the heating cavity;

[0010] A spiral propulsion mechanism is installed inside the heating chamber;

[0011] The inner walls of the upper and lower sides of the heating cavity are wavy, and multiple micropores are provided on the wavy inner walls; the multi-layer heat-conducting structure includes a metal heat-conducting layer, a heat-insulating buffer layer and a radiation-reflecting layer arranged sequentially from the inside to the outside, and the metal heat-conducting layer is in close contact with the outer wall of the heating cavity.

[0012] Preferably, the spiral propulsion mechanism includes a motor, a central shaft, and multiple spiral blades. The central shaft extends horizontally through the heating cavity, and the spiral blades are evenly distributed along the axial direction of the central shaft. The spacing between adjacent spiral blades gradually decreases from the feed end to the discharge end. The motor is fixed to the outside of the heating cavity, and the output end of the motor is connected to the central shaft via a coupling.

[0013] Preferably, the feeding end of the heating chamber is provided with a preheating chamber, the preheating chamber is connected to the heating chamber through a pipe, the pipe is provided with an adjustable valve, the inner wall of the preheating chamber is coated with an alumina ceramic coating, and the top of the preheating chamber is provided with an exhaust port.

[0014] Preferably, the metal thermally conductive layer is an aluminum alloy layer, the heat insulation buffer layer is a flexible silicone material layer, and the radiation reflective layer is an aluminum foil layer.

[0015] Preferably, the metal thermally conductive layer has multiple protrusions.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] This utility model's heating and melting device for modified plastics production achieves uniform heat distribution and reduces localized overheating through a combination of a multi-layer heat-conducting structure and a corrugated guide channel. The variable-pitch design of the spiral propulsion mechanism solves the problem of unstable equipment operation when handling high-viscosity materials. The preheating chamber further improves the device's heating efficiency. Furthermore, the introduction of a heat-insulating buffer layer and a radiation-reflecting layer effectively reduces heat loss, thereby reducing energy consumption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the micropore structure described in this utility model;

[0020] Figure 3 This is a schematic diagram of the multilayer heat-conducting structure described in this utility model. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0022] Example 1:

[0023] like Figures 1 to 3 As shown, this utility model provides a heating and melting device for the production of modified plastics, comprising:

[0024] Heating chamber 1 extends horizontally and has a feed end 3 and a discharge end 4;

[0025] A multi-layer thermally conductive structure is provided on the outer wall of the heating cavity 1 to achieve layered heat conduction;

[0026] A spiral propulsion mechanism is installed inside the heating chamber 1 to guide the material to move along a predetermined path;

[0027] The inner walls of the upper and lower sides of the heating cavity 1 are wavy, and multiple micropores 7 are provided on the wavy inner walls; the multi-layer heat-conducting structure includes a metal heat-conducting layer 8, a heat-insulating buffer layer 9 and a radiation-reflecting layer 10 arranged sequentially from the inside to the outside, and the metal heat-conducting layer 8 is in close contact with the outer wall of the heating cavity 1.

[0028] Example 2:

[0029] like Figures 1 to 3 As shown, this utility model provides a heating and melting device for the production of modified plastics, comprising:

[0030] Heating chamber 1 extends horizontally and has a feed end 3 and a discharge end 4;

[0031] A multi-layer thermally conductive structure is provided on the outer wall of the heating cavity 1 to achieve layered heat conduction;

[0032] A spiral propulsion mechanism is installed inside the heating chamber 1 to guide the material to move along a predetermined path;

[0033] The inner walls of the upper and lower sides of the heating cavity 1 are wavy, and multiple micropores 7 are provided on the wavy inner walls; the multi-layer heat-conducting structure includes a metal heat-conducting layer 8, a heat-insulating buffer layer 9 and a radiation-reflecting layer 10 arranged sequentially from the inside to the outside, and the metal heat-conducting layer 8 is in close contact with the outer wall of the heating cavity 1.

[0034] The microporous structure 7 allows heat to be evenly transferred to the material surface through the microporous structure 7, thereby improving heating efficiency and reducing the occurrence of local overheating.

[0035] The spiral propulsion mechanism includes a motor 11, a central shaft 12, and multiple spiral blades 13. The central shaft 12 is arranged horizontally through the heating cavity 1. The spiral blades 13 are evenly distributed along the axial direction of the central shaft 12. The spacing between adjacent spiral blades 13 gradually decreases from the feed end 3 to the discharge end 4. The motor 11 is fixed to the outside of the heating cavity 1, and the output end of the motor 11 is connected to the central shaft 12 through a coupling.

[0036] This design can adapt to the characteristic that the viscosity of materials gradually increases during the heating process, thereby avoiding the problem of unstable equipment operation caused by the accumulation of high-viscosity materials.

[0037] Furthermore, in another embodiment, the feed end 3 of the heating chamber 1 is provided with a preheating chamber 2, the preheating chamber 2 is connected to the heating chamber 1 through a pipe 5, the pipe 5 is provided with an adjustable valve 6, the inner wall of the preheating chamber 2 is coated with an alumina ceramic coating, and the top of the preheating chamber 2 is provided with an exhaust port 14.

[0038] The heating chamber 1 has a preheating chamber 2 at its feed end 3, which is connected to the heating chamber 1 via an adjustable valve 6. The inner wall of the preheating chamber 2 is coated with a high-temperature resistant coating made of alumina ceramic with a thickness of 0.5mm to 1mm to reduce heat loss and extend the service life of the preheating chamber 2. An exhaust port 14 with a diameter of 10mm to 15mm is located at the top of the preheating chamber 2 to discharge gases generated during the heating process. The adjustable valve 6 is threaded to both the heating chamber 1 and the preheating chamber 2, and its opening can be adjusted manually or electrically to control the flow rate of material from the preheating chamber 2 into the heating chamber 1. The design of the preheating chamber 2 allows for preliminary heating of the material, thereby reducing the heating load on the heating chamber 1 and improving overall heating efficiency.

[0039] It should be noted that both heating chamber 1 and preheating chamber 2 are existing technologies. They can be heating chambers with heating wires on the inner wall and can be self-heating.

[0040] Furthermore, in another embodiment, the metal thermally conductive layer 8 is an aluminum alloy layer, the heat insulation buffer layer 9 is a flexible silicone material layer, and the radiation reflective layer 10 is an aluminum foil layer.

[0041] The metal heat-conducting layer 8 is made of aluminum alloy with excellent thermal conductivity. The heat-insulating buffer layer 9, located between the metal heat-conducting layer 8 and the radiation-reflecting layer 10, is made of flexible silicone material with a thickness of 5mm to 10mm. It is used to absorb thermal stress caused by temperature changes and reduce heat loss to the external environment. The radiation-reflecting layer 10 is made of high-reflectivity aluminum foil with a thickness of 0.1mm to 0.2mm. It is used to reflect heat back into the heating cavity 1 to further reduce heat loss.

[0042] Furthermore, in another embodiment, the metal thermally conductive layer 8 is provided with a plurality of protrusions 6.

[0043] The protrusion 6 is in close contact with the outer wall of the heating cavity 1 to enhance heat transfer efficiency.

[0044] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the heating and melting apparatus for the production of modified plastics according to this utility model, and can produce the positive effects described in this utility model.

[0045] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0046] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A heating and melting device for producing modified plastics, characterized in that: include: The heating chamber extends horizontally and has an inlet end and an outlet end; A multi-layer thermally conductive structure is disposed on the outer wall of the heating cavity; A spiral propulsion mechanism is installed inside the heating chamber; The inner walls of the upper and lower sides of the heating cavity are wavy, and multiple micropores are provided on the wavy inner walls; the multi-layer heat-conducting structure includes a metal heat-conducting layer, a heat-insulating buffer layer and a radiation-reflecting layer arranged sequentially from the inside to the outside, and the metal heat-conducting layer is in close contact with the outer wall of the heating cavity.

2. The heating and melting apparatus for producing modified plastics according to claim 1, characterized in that: The spiral propulsion mechanism includes a motor, a central shaft, and multiple spiral blades. The central shaft runs through the heating cavity horizontally. The spiral blades are evenly distributed along the axial direction of the central shaft, and the spacing between adjacent spiral blades gradually decreases from the feed end to the discharge end. The motor is fixed to the outside of the heating cavity, and the output end of the motor is connected to the central shaft through a coupling.

3. The heating and melting apparatus for producing modified plastics according to claim 1, characterized in that: The heating chamber has a preheating chamber at the feed end. The preheating chamber is connected to the heating chamber through a pipe. An adjustable valve is provided on the pipe. The inner wall of the preheating chamber is coated with an alumina ceramic coating. An exhaust port is provided at the top of the preheating chamber.

4. The heating and melting apparatus for producing modified plastics according to claim 1, characterized in that: The thermally conductive metal layer is an aluminum alloy layer, the heat insulation buffer layer is a flexible silicone material layer, and the radiation reflective layer is an aluminum foil layer.

5. The heating and melting apparatus for producing modified plastics according to claim 1, characterized in that: The metal thermally conductive layer has multiple protrusions.

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