Drawer-type material feeding mechanism for low-oxygen, low-temperature pyrolysis equipment

Abstract

A material feeding mechanism for a low-oxygen, low-temperature pyrolysis device is provided. [Solution] The drawer-type material feed section 1 is provided on the side of the outer shell 3 of the low-oxygen low-temperature pyrolysis machine body, and is located lower than models with a feed section at the top of the device, making it possible to feed the material without providing a stage. In addition, the square tube 2 into which the drawer-type material feed section is inserted, which is provided inside the thermal reaction kiln 4, is made long enough to reach the center of the thermal reaction kiln, ensuring the material feed volume of the drawer-type material feed section. In addition, by providing an opening and closing door 9 for dropping the material at the tip of the square tube, it is possible to block vapor-like gas. In addition, safety during work is ensured by providing a stopper 7 inside the square tube to prevent the drawer feed section from jumping out, and further by providing a mechanism for a foldable material push-out shaft 11 on the handle surface of the drawer body, the material can be dropped reliably.

Description

[Technical field]

[0001] This invention relates to the feed section of a low-oxygen, low-temperature pyrolysis machine (hereinafter referred to as the "machine"), including models that utilize magnetic air. [Background technology]

[0002] Many of the devices, including those that utilize magnetic air, have the inlet at the top of the device. The reason is that the pyrolysis method is based on thermal conduction under low oxygen conditions, rather than combustion, and the unique decomposition process is shown in Non-Patent Document 1. This low-temperature pyrolysis proceeds from the bottom to the top of the pyrolysis furnace (hereinafter referred to as the thermal reaction furnace) installed inside the device body, and the volume of the treated material is reduced. After pyrolysis, the material becomes "ash" and is discharged from the device by rotating the ash discharge screw installed at the deepest part of the thermal reaction furnace. By repeating this process, the material fed into the thermal reaction furnace drops every time pyrolysis proceeds. Currently, models with the material feed section at the top of the device body are the standard style for this unique pyrolysis process. In addition, most of them use a double door system with an outer door for sealing purposes and an inner door for dropping the treated material. Furthermore, in order to ensure a low-oxygen state when the device is in operation, several metal fittings are installed to press down and seal the outer door to prevent air from entering through the gap between the feed section and the outer door. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-165162 [Patent Document 2] Patent No. 6905242 [Patent Document 3] Patent Publication No. 2016-30220 [Patent Document 4] Patent Publication No. 2015-163833 [Non-patent literature]

[0004] [Non-Patent Document 1] Sondex Corporation Earth Cube Brochure Summary of the Invention [Problem to be solved by the invention]

[0005] The problem that the inventor is trying to solve is as follows. First, if the building is equipped with a crane, hoist, or other device for lifting the material to the stage, the labor required will be reduced. However, many sites do not have such equipment, and workers must carry the material up the stairs and onto the stage, stand on the stage, open the door to the loading section, and load the material. The inventor has actually been involved in processing work using low-oxygen low-temperature pyrolysis machines for about five years, and has comprehensively considered the following work content. (1) Loading the material to be processed onto the stage, (2) Standing on the stage and opening the outer door of the loading section, (3) Fixing the door in the open position (some models have a door that automatically locks), (4) Loading, (5) Closing the outer door and sealing it with a fixing bracket, (6) Opening the inner door and loading the material to be processed into the reactor, and (7) Closing the inner door and descending the stage. In other words, seven steps must be taken. In addition, the stairs to get up to the stage are often steep, and the possibility of an accident cannot be denied. In addition, the materials to be put into the reactor must be filled to a specified amount (height), so workers must repeatedly carry the materials up and down the stairs to put them in. In addition, in the above-mentioned (2) stage, the work of standing on the stage and opening the outer door of the loading section, if the inner door directly below the outer door is not tightly sealed, the steam gas generated during pyrolysis that fills the inside of the device will rise and escape through the gap, creating a poor working environment for both workers and the work environment. In addition, in order to increase the amount of materials to be loaded at one time, the loading section needs to be enlarged, but due to the problem of sealing and the weight increase caused by the enlargement of each door itself, it is difficult to simply make it larger unless the opening and closing mechanism is electrically operated. Therefore, the challenge was to construct an input section that could be operated manually, had a reliable airtightness between the outer and inner input doors, and could secure a sufficient amount of material to be input in one go, and by locating it at a low position from the top of the equipment, eliminate the need for a high stage, and create a configuration that could be performed quickly and safely by workers who wanted to open and close the outer input door, as well as input the material to be treated. [Means for solving the problem]

[0006] This invention provides a drawer-type material feed section with a handle like a normal desk drawer on the discharge side of the device body, and a square tube (for example, a square tube) into which the drawer-type material feed section is inserted, which reaches from the outer side of the device body to the center of the thermal reaction kiln inside the device, and provides an opening and closing door for dropping the material to be treated at the tip of the square tube on the thermal reaction kiln side, and further provides a material pushing mechanism on the drawer handle surface, and also provides a stopper to prevent the drawer body from jumping out and a roller (door roller) to reduce resistance when the drawer is inserted and removed, thereby contributing to safety and reducing the labor of workers and solving the problem. In addition, since the work is done from the side of the drawer type, it has greatly improved the problem of the steam gas flowing upward as mentioned above. Furthermore, since the distance from the side of the device to the reaction kiln inside the device is physically near the center of the side of the device, it is possible to ensure a sufficient amount of material to be fed at one time without having to make the feed section larger like the conventional one provided at the top of the device. Of course, it goes without saying that the drawer handle surface is equipped with sealing fixing brackets. Effect of the Invention

[0007] As mentioned above, the drawer-type material input unit of the present invention eliminates the need for workers to work at high altitudes by climbing onto a stage, and also significantly improves the problem of rising and escaping steam gas, making it possible to realize a safe working environment. Furthermore, the amount of material input at one time is sufficient, shortening the input work time and reducing the labor required by workers. [Brief description of the drawings]

[0008] [Figure 1] FIG. 4 is a side view showing the processing material being input into the drawer-type input section. [Diagram 2] 1 is a side view showing the drawer-type input section when the material to be processed is being dropped into the drawer-type input section. FIG. [Diagram 3] FIG. 2 is a perspective view showing an outline of the inside of a low-oxygen, low-temperature pyrolysis machine incorporating a drawer-type input section of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The drawer type loading section is composed of two parts: the drawer body and the square tube into which the drawer is incorporated. The drawer body is long enough to reach the center of the reactor in the longitudinal direction inside the device in order to accommodate the amount of material to be loaded at one time. The mechanism for the open / close door for loading the material to be loaded, which is installed at the inner end of the square tube into which the drawer body is incorporated, is a combination of a worm gear and a worm wheel, which directly reduces the effort required to open and close the door. Another advantage of the combination of a worm gear and a worm wheel is that it is self-locking. This characteristic makes it possible to fix the door at any angle within the opening and closing angle range. In addition, the surface where the open / close door on the square tube side comes into contact is not vertical but has a slight angle to prevent the rising steam-like gas generated inside from flowing into the loading section when the door is closed, preventing the inflow of steam when the door is closed. In addition, the flat surface of the drawer and square tube on the contact surface of the drawer is significantly improved in airtightness compared to the one-sided hinge type found in top-opening doors, because the drawer itself moves horizontally. EXAMPLES

[0011] An embodiment will be described below with reference to the attached drawings. To load the material to be treated, the handle of the drawer loading section 14 is gripped and the drawer type loading section 1 is pulled out. The material to be treated 16 is placed inside and the drawer type loading section 22 is closed and sealed. At this time, the opening and closing door for dropping the material to be treated 9 is in a closed state. In this state, the folding type material to be treated push-out shaft 11 is raised horizontally to open the opening and closing door for dropping the material to be treated 17. After that, the folding type material to be treated push-out shaft 18 is pushed in, and the material to be treated push-out plate 19 pushes the material to be treated 16 into the thermal reaction furnace 20, and the material to be treated 21 falls. [Explanation of symbols]

[0012] 1 Drawer-type input section 2. Square tube into which the drawer-type material feed section is inserted 3. Low-oxygen low-temperature pyrolysis machine main body exterior 4. Thermal reaction kiln 5 Ash discharge screw 6 Air Injection Tube 7 Drawer insertion stopper to prevent items from falling out 8 Openable door gear box for dumping treated material 9 Openable door for dropping off treated materials 10 Processing material push-out plate 11 Foldable material extrusion shaft 12 Roller Rail 13. Roller 14 Drawer insertion handle 15. Low-oxygen low-temperature pyrolysis machine internal inspection section 16 Processing materials 17 Opening and closing door for dropping treated materials 18 Foldable material extrusion shaft 19 Processing material push-out plate 20 Thermal reaction kiln 21 Processing materials 22 Drawer-type input section 23 Square tube into which the drawer-type material feed section is inserted 24. Low-oxygen low-temperature pyrolysis machine main body exterior 25 Thermal reaction kiln 26 Air injection tube 27 Ash discharge screw

Claims

[Claim 1] A process material feeding mechanism for a low-oxygen low-temperature pyrolysis machine has a drawer body with a handle like an ordinary desk drawer attached to the exterior side of the low-oxygen low-temperature pyrolysis machine body, and a door for dropping in the process material is provided at the tip of a square tube into which the drawer body is inserted, the drawer body having a length that reaches from the exterior side of the low-oxygen low-temperature pyrolysis machine body to near the center of the thermal reaction furnace inside the device, and rollers (door wheels) to reduce resistance when the drawer is inserted or removed, and a stopper to prevent the drawer body from popping out are provided inside the square tube.

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