Pyrolysis furnace for waste

The double-layered insulation system in the waste pyrolysis furnace addresses heat loss issues, stabilizing the heating process and enhancing pyrolysis efficiency by maintaining thermal insulation.

KR103042292B1Active Publication Date: 2026-11-05INHA UNIV RES & BUSINESS FOUNDATION
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Patent Information

Application Number
KR1020240012433
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-01-27
Filing Date
2024-01-26
Publication Date
2026-11-05
Estimated Expiration
2044-01-26

AI Technical Summary

Technical Problem

Conventional pyrolysis furnaces experience decreased efficiency due to heat loss through external heat release during the pyrolysis process.

Method used

A waste pyrolysis furnace design featuring a double-layered insulation system with non-contacting first and second insulating materials surrounding the main body, enhancing thermal insulation and maintaining stable heating.

Benefits of technology

The improved insulation performance stabilizes the heating process, ensuring efficient thermal decomposition of waste plastics and vinyl, minimizing heat loss and maintaining pyrolysis efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a waste pyrolysis furnace for pyrolyzing waste while being heated by a heating means disposed externally, comprising a main body having a space for receiving waste, a first insulating material disposed to surround the outer surface of the main body, and a second insulating material disposed to surround the outer surface of the first insulating material, wherein the first insulating material is disposed to surround a part of the main body and the second insulating material is disposed to surround a part of the first insulating material.
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Description

Technology Field

[0001] The present invention relates to a waste pyrolysis furnace for pyrolyzing waste plastics and waste vinyl. Background Technology

[0002] Due to recent environmental issues, carbon reduction has become a major topic. In addition, research is currently underway to develop new energy sources, such as producing hydrogen from waste plastics and vinyl.

[0003] Among these, research is actively underway to replace conventional petroleum by producing pyrolysis oil through the decomposition of waste plastics and vinyl using low-temperature pyrolysis devices.

[0004] This low-temperature pyrolysis is a method of decomposing internal materials by introducing waste plastics or waste vinyl into a large pyrolysis furnace and applying heat within approximately 500 to 600°C. Waste plastics or waste vinyl are introduced into the pyrolysis furnace, and heating proceeds from the bottom of the furnace using a heating means. As the temperature rises, the internal materials decompose and are ultimately separated into gas and residual sludge. When the gas generated during the decomposition process is cooled, pyrolysis oil is produced, while the sludge is disposed of.

[0005] At this time, the above pyrolysis furnace is heated using a burner as the heating means, but there is a problem in that the pyrolysis efficiency decreases as heat is released to the outside.

[0006] Related technology regarding such conventional pyrolysis furnaces is disclosed in Korean Registered Patent Publication No. 10-1218181 (December 27, 2012). The problem to be solved

[0007] The purpose of the present invention is to provide a waste pyrolysis furnace that maximizes pyrolysis efficiency during the process of pyrolyzing waste by ensuring stable thermal insulation performance. means of solving the problem

[0008] The present invention provides a waste pyrolysis furnace for pyrolyzing waste while being heated by a heating means disposed externally, comprising a main body having a space for receiving said waste, a first insulating material disposed to surround the outer surface of said main body, and a second insulating material disposed to surround the outer surface of said first insulating material, wherein the first insulating material is disposed to surround a part of said main body and the second insulating material is disposed to surround a part of said first insulating material.

[0009] In addition, the first insulation material and the second insulation material may be placed in a position where they do not come into contact with the heat generated from the heating means.

[0010] In addition, the heating means is composed of a plurality of burners spaced apart from each other at the bottom of the main body, the first insulating material has a ring cross-sectional shape and is spaced apart from each other on the outer surface of the main body, the second insulating material is arranged to wrap around a portion of the circumferential direction of the plurality of first insulating materials, and the plurality of first insulating materials can be arranged at a position that does not come into contact with the flames generated from each of the plurality of burners.

[0011] In addition, the heating means comprises at least one burner disposed at the lower part of the main body, the first insulating material is provided with a first through-groove portion, the second insulating material is provided with a second through-groove portion communicating with the first through-groove portion, and the first through-groove portion and the second through-groove portion may be disposed at a position in contact with a flame generated from the burner. Effects of the invention

[0012] In the pyrolysis furnace for waste according to the present invention, a first insulating material is arranged to surround a part of the main body, which is provided with a space for accommodating waste, and a second insulating material is arranged to surround a part of the first insulating material, thereby enabling the insulation performance of the main body to be improved.

[0013] In addition, since the first and second insulating materials are positioned so as not to come into contact with the flame generated by the heating means, the heating of the main body by the heating means is stably maintained, and the thermal decomposition of the waste can be stably carried out. Brief explanation of the drawing

[0014] FIG. 1 is a side view of a waste pyrolysis furnace according to one embodiment of the present invention. FIG. 2 is a side view of a waste pyrolysis furnace according to another embodiment of the present invention. Specific details for implementing the invention

[0015] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0016] Referring to FIG. 1, a waste pyrolysis furnace according to one embodiment of the present invention may include a main body (100), a first insulating material (200), and a second insulating material (300).

[0017] The above main body (100) is a part in which thermal decomposition of waste contained inside takes place while being heated by a heating means (10) placed outside. Here, the waste may be waste plastic or waste vinyl, but is not limited thereto.

[0018] The heating means (10) can be placed at the bottom of the main body (100).

[0019] In one embodiment, the heating means (10) may be a burner that heats the main body (100) by applying heat from the flame generated during the combustion of the combustion fuel, but is not limited thereto and may also be applied as a means that transfers heat to the main body (100) by generating heat through an electric supply.

[0020] Here, at least one heating means (10) is disposed at the lower part of the main body (100), and when a plurality of heating means (10) are disposed at the lower part of the main body (100), they may be disposed spaced apart from each other in a direction parallel to the longitudinal direction of the main body (100).

[0021] The above main body (100) may be provided as a container structure having a space for accommodating the waste. For example, the above main body (100) is illustrated as a container structure with a circular cross-section, but it is not limited thereto and may be provided as a container structure with a polygonal cross-section.

[0022] The above-mentioned main body (100) has a sealed interior so that pyrolysis can be stably carried out through heating of waste, and the interior of the main body (100) can be maintained in an oxygen-free or low-oxygen state.

[0023] In addition, the main body (100) may be provided with an inlet (110) for introducing waste into the interior, an opening and closing means (120) for opening and closing the inlet (110), an exhaust port (not shown) for discharging gas generated during the pyrolysis of waste, and an outlet (not shown) for discharging sludge generated after the pyrolysis of waste.

[0024] In addition, the main body (100) may be equipped with a sensor means (not shown) for measuring internal temperature and pressure.

[0025] The first insulation material (200) and the second insulation material (300) are placed on the outside of the main body (100) to increase the insulation performance of the main body (100), thereby minimizing the discharge of heat from inside the main body (100), heated by the heating means (10), to the outside of the main body (100).

[0026] The first insulating material (200) can be arranged to wrap around the outer surface of the main body (100).

[0027] The second insulation material (300) can be arranged to wrap around the outer surface of the first insulation material (200).

[0028] Here, the first insulating material (200) is positioned to surround a part of the main body (100), and the second insulating material (300) can be positioned to surround a part of the first insulating material (200).

[0029] In addition, the first insulation material (200) and the second insulation material (300) are positioned so as not to come into contact with the flame generated by the heating means (10), thereby allowing the heat generated by the heating means (10) to be stably transferred to the main body (100) and heating to be achieved, and preventing damage or deformation of the first insulation material (200) and the second insulation material (300) caused by the heating means (10).

[0030] To explain this in more detail, the first insulating material (200) has a ring cross-sectional shape and can be arranged in multiple numbers spaced apart from each other on the outer surface of the main body (100). Additionally, the second insulating material (300) is arranged to wrap around a portion of the circumferential direction of the plurality of first insulating materials (200), and more specifically, it can be arranged to wrap around the remaining portion of the first insulating material (200) and the main body (100), excluding the lower portion of the plurality of first insulating materials (200) and the lower portion of the main body (100).

[0031] In another embodiment, as shown in FIG. 2, a first through-hole portion (210a) may be provided in the first insulating material (200a), and a second through-hole portion (310a) communicating with the first through-hole portion (210a) may be provided in the second insulating material (300a).

[0032] At this time, the first through hole portion (210a) and the second through hole portion (310a) are positioned on the lower side of the main body (100) with respect to the center of the main body (100), and it is preferable that the heating means (10) is positioned on the lower side of the main body (100) so as to be located below the second through hole portion (310a).

[0033] Through this, the flame generated from the heating means (10) comes into contact with the outer surface of the main body (100) through the first through hole portion (210a) and the second through hole portion (310a), thereby stably heating the main body (100) and increasing the thermal insulation efficiency of the main body (100).

[0034] In this way, in a pyrolysis furnace for waste according to one embodiment, a first insulating material (200) is arranged to surround a part of the main body (100) which is provided with a space for accommodating waste, and a second insulating material (300) is arranged to surround a part of the first insulating material (200), thereby enabling the insulation performance of the main body (100) to be improved.

[0035] In addition, the first insulation material (200) and the second insulation material (300) are positioned so as not to come into contact with the flame generated by the heating means (10), thereby stably maintaining the heating of the main body (100) by the heating means (10) and stably allowing the thermal decomposition of waste to take place.

[0036] The present invention has been described with reference to embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Explanation of the symbols

[0037] 10: Heating means 100: Main body 200,200a: 1st insulation material 300,300a: 2nd insulation material

Claims

Claim 1 In a waste pyrolysis furnace that pyrolyzes waste while being heated by an externally positioned heating means (10), the furnace comprises: a main body (100) having a space for accommodating the waste; and a first insulating material (200) positioned to surround the outer surface of the main body (100). The invention includes a second insulating material (300) arranged to surround the outer surface of the first insulating material (200), wherein the first insulating material (200) is arranged to surround a part of the main body (100), and the second insulating material (300) is arranged to surround a part of the first insulating material (200), and the heating means (10) is composed of a plurality of burners spaced apart from each other at the bottom of the main body (100), and the first insulating material (200) has a ring cross-sectional shape and is arranged in a plurality spaced apart from each other on the outer surface of the main body (100), and the second insulating material (300) is arranged to surround a portion of the circumferential direction of the plurality of first insulating materials (200), wherein the second insulating material (300) surrounds the first insulating material (200) and the remaining portion of the first insulating material (200) excluding the lower portion of the plurality of first insulating materials (200) and the lower portion of the main body (100). A waste pyrolysis furnace arranged to surround the main body (100), wherein the first insulating material (200) and the second insulating material (300) are positioned so as not to come into contact with the flames generated from each of the plurality of burners. Claim 2 In a waste pyrolysis furnace that pyrolyzes waste while being heated by an externally positioned heating means (10), the furnace comprises: a main body (100) having a space for accommodating the waste; and a first insulating material (200a) positioned to surround the outer surface of the main body (100). and includes a second insulating material (300a) arranged to surround the outer surface of the first insulating material (200a), wherein the first insulating material (200a) is arranged to surround a part of the main body (100), and the second insulating material (300a) is arranged to surround a part of the first insulating material (200a), and the heating means (10) is composed of at least one burner arranged at the bottom of the main body (100), and the first insulating material (200a) is provided with a first through-hole portion (210a), and the second insulating material (300a) is provided with a second through-hole portion (310a) communicating with the first through-hole portion (210a), wherein the first through-hole portion (210a) and the second through-hole portion (310a) are arranged with respect to the center of the main body (100) of the main body (100). A waste pyrolysis furnace that is positioned on the lower side, and the burner is positioned on the lower side of the main body (100) so as to be located at the lower part of the second through-hole section (310a), and the flame generated from the burner heats the main body (100) by coming into contact with the outer surface of the main body (100) through the first through-hole section (210a) and the second through-hole section (310a). Claim 3 delete Claim 4 delete

Citation Information

Patent Citations

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