Tunnel Pyrolysis Furnace
A tunnel pyrolysis furnace has a body and at least one flaming device. The body has a chamber and multiple tubes. The multiple tubes are disposed around the chamber and have catalysts loaded inside. The at least one flaming device is disposed near the body, and is used to heat up the body. The multiple tubes absorb heat, so heat is concentrated around the chamber and that provides an effect of even heating. Therefore, the chamber may reach a temperature for pyrolysis in a short time.
The present invention relates to a tunnel pyrolysis furnace, and more particularly to a tunnel pyrolysis furnace that can improve efficiency of a pyrolysis process.
2. Description of Related ArtPyrolysis refers to an irreversible chemical process which decomposes organic matters from macromolecules to micromolecules in an environment of high temperature and absence of oxygen. Taking advantage of the principle of pyrolysis, we can turn either waste matters or raw materials into reusable resources. For instance, waste tires may offer pyrolysis oil as fuel for a diesel engine after a pyrolysis process; biological raw materials such as soybeans and corns may offer biodiesel and activated charcoal after the pyrolysis process.
A conventional tunnel pyrolysis furnace for processing pyrolysis has a chamber. The chamber has a shuttable gate to isolate the outside air. After a user puts a recycled waste matter or a raw material into the chamber, the shuttable gate is shut down to isolate the chamber from outside air. Then, by elevating temperature to a certain value, the user may obtain reusable resources from pyrolysis.
However, the conventional tunnel pyrolysis furnace has the following shortcomings.
1. A large amount of time and energy must be consumed by the conventional tunnel pyrolysis furnace to reach the temperature for pyrolysis since the conventional tunnel pyrolysis furnace dissipates heat easily.
2. A long heating period also leads to low efficiency of the conventional tunnel pyrolysis furnace.
SUMMARY OF THE INVENTIONThe main objective of the present invention is to provide a tunnel pyrolysis furnace that can improve efficiency of the pyrolysis process.
The tunnel pyrolysis furnace has a body and at least one flaming device. The body has a chamber and multiple tubes. The multiple tubes are disposed around the chamber and each tube has a catalyst loaded inside. The at least one flaming device is disposed near the body, and is used to heat up the body.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
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With the aforementioned technical characteristics, the tunnel pyrolysis furnace has the following advantages.
1. Working efficiency for pyrolysis is improved. For example, the pyrolysis temperature for polyethylene (PE) and polypropylene (PP) is 300° C.; the pyrolysis temperature for acrylonitrile butadiene styrene (ABS) and hardware such as wires or printed circuit boards (PCB) is 400° C.; the pyrolysis temperature for polyvinyl chloride (PVC) and tires is 450° C. The conventional tunnel pyrolysis furnace takes 6 hours to reach the pyrolysis temperatures mentioned above, while the present invention only takes 4 hours, saving one third of heating time.
2. Because of high efficiency and short heating time, the present invention is energy-saving. Pyrolysis proceeds relatively fast, so subsequent fuel gas may come from the gaseous products of pyrolysis. That means the fuel source 60 of each one of the flaming devices 20 is used only in a short period.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims
1. A tunnel pyrolysis furnace comprising:
- a body having a chamber disposed in the body; and multiple tubes disposed around the chamber, and each tube having a catalyst loaded inside; and
- at least one flaming device disposed adjacent to the body to heat up the body.
2. The tunnel pyrolysis furnace as claimed in claim 1, wherein the tunnel pyrolysis furnace further has a condenser connected to the body; and
- the body further has a pipe communicating with the chamber and connected to the condenser.
3. The tunnel pyrolysis furnace as claimed in claim 2, wherein the at least one flaming device is connected to the condenser and a fuel source.
4. The tunnel pyrolysis furnace as claimed in claim 1, wherein the body further has
- a base disposed below the chamber and having at least one through hole formed through the base and aligning with the at least one flaming device.
5. The tunnel pyrolysis furnace as claimed in claim 2, wherein the body further has
- a base disposed below the chamber and having at least one through hole formed through the base and aligning with the at least one flaming device.
6. The tunnel pyrolysis furnace as claimed in claim 3, wherein the body further has
- a base disposed below the chamber and having at least one through hole formed through the base and aligning with the at least one flaming device.
7. The tunnel pyrolysis furnace as claimed in claim 4, wherein the body further has
- a surrounding layer disposed in the chamber and having multiple tubes disposed separately, surrounding the chamber in a height direction, and extending downwardly into the base.
8. The tunnel pyrolysis furnace as claimed in claim 5, wherein the body further has
- a surrounding layer disposed in the chamber and having multiple tubes disposed separately, surrounding the chamber in a height direction, and extending downwardly into the base.
9. The tunnel pyrolysis furnace as claimed in claim 6, wherein the body further has
- a surrounding layer disposed in the chamber and having multiple tubes disposed separately, surrounding the chamber in a height direction, and extending downwardly into the base.
10. The tunnel pyrolysis furnace as claimed in claim 7, wherein the body further has
- a padding layer disposed in the chamber and surrounded by the surrounding layer and having multiple tubes connected together, disposed between the chamber and the base and beside the chamber, and extending downwardly into the base.
11. The tunnel pyrolysis furnace as claimed in claim 8, wherein the body further has
- a padding layer disposed in the chamber and surrounded by the surrounding layer and having multiple tubes connected together, disposed between the chamber and the base and beside the chamber, and extending downwardly into the base.
12. The tunnel pyrolysis furnace as claimed in claim 9, wherein the body further has
- a padding layer disposed in the chamber and surrounded by the surrounding layer and having multiple tubes connected together, disposed between the chamber and the base and beside the chamber, and extending downwardly into the base.
Type: Application
Filed: Jul 27, 2018
Publication Date: Jan 30, 2020
Inventors: Yuan-Tsang Chang (Taichung City), Yung-Sung Chen (Chiayi City)
Application Number: 16/047,088