Container type anaerobic pyrolysis gasification furnace

Abstract

A container type anaerobic pyrolysis gasifier comprises a pyrolysis chamber mechanism and a secondary combustion chamber mechanism, the pyrolysis chamber mechanism and the secondary combustion chamber mechanism are located in a container, and the pyrolysis chamber mechanism comprises an inclined cylindrical pyrolysis chamber inner core and a pyrolysis chamber shell covering the outer portion of the pyrolysis chamber inner core. A cylindrical heating space is formed between the exterior of the pyrolysis chamber inner core and the interior of the pyrolysis chamber shell, an inlet riding wheel and an outlet riding wheel are supported at the two ends of the pyrolysis chamber inner core correspondingly, so that the pyrolysis chamber inner core is rotationally supported in the pyrolysis chamber shell, and one end of the pyrolysis chamber inner core is driven by a driving device to rotate; the air outlet end of the secondary combustion chamber mechanism communicates with the heating space of the pyrolysis chamber mechanism, and the air outlet end of the pyrolysis chamber mechanism is connected with the induced draft fan mechanism. The whole process from feeding to deslagging of the whole equipment is in a sealed state, heat loss is reduced to the maximum extent, and energy consumption and operation cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of domestic garbage treatment, in particular to a container-type anaerobic pyrolysis gasification furnace. Background Art

[0002] Currently, there are two main methods of domestic waste disposal: landfill and incineration.

[0003] (1) Landfill technology is relatively simple, with low investment and operating costs, but it requires a large area of ​​land, is difficult to select a site, has low waste treatment efficiency and is prone to secondary pollution. Therefore, with the development of the times, landfill treatment will gradually be eliminated.

[0004] (2) Incineration is the process of burning domestic waste at high temperatures to convert combustible waste in domestic waste into carbon dioxide and water. The ash and slag after incineration are less than 20% of the original volume of domestic waste. Therefore, incineration is a waste reduction and harmless treatment technology and is currently the main way to treat domestic waste. However, incineration has the disadvantages of high investment and operating costs, large space occupation, complex operation, and the need for on-site fixed installation. Therefore, incineration is mainly suitable for economically developed and densely populated urban areas, but not for remote towns and villages with low population density and the need for mobile incinerators. Therefore, there is an urgent need for a pyrolysis gasification furnace that is compact in structure and easy to transport and relocate and can be integrated into a container to solve the above technical problems. Summary of the invention

[0005] In order to solve the above problems, the purpose of the utility model is to provide a container-type anaerobic pyrolysis gasification furnace.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a container-type anaerobic pyrolysis gasification furnace, including a pyrolysis chamber mechanism and a secondary combustion chamber mechanism, the pyrolysis chamber mechanism and the secondary combustion chamber mechanism are located in a container, the pyrolysis chamber mechanism includes an inclined cylindrical pyrolysis chamber inner core and a pyrolysis chamber shell covering the outside of the pyrolysis chamber inner core, the outside of the pyrolysis chamber inner core and the inside of the pyrolysis chamber shell form a cylindrical heating space, the two ends of the pyrolysis chamber inner core are respectively supported by an inlet supporting wheel and an outlet supporting wheel, so that the pyrolysis chamber inner core is rotatably supported in the pyrolysis chamber shell, one end of the pyrolysis chamber inner core is driven to rotate by a driving device, the air outlet end of the secondary combustion chamber mechanism is connected to the heating space of the pyrolysis chamber mechanism, and the air outlet end of the pyrolysis chamber mechanism is connected to the induced draft fan mechanism.

[0007] Furthermore, a feeding mechanism is provided at the front end of the pyrolysis chamber mechanism, a garbage storage bin is provided at the feeding end of the feeding mechanism, an electro-hydraulic gate valve for controlling the opening and closing of the bottom of the garbage storage bin is provided at the bottom of the garbage storage bin, and the discharge end of the feeding mechanism extends to the inner core of the pyrolysis chamber.

[0008] Furthermore, the gas outlet end of the inner core of the pyrolysis chamber is also connected to a gas-solid separation chamber mechanism, and a slag discharge screw conveyor is provided at the bottom slag discharge port of the gas-solid separation chamber mechanism.

[0009] Furthermore, a material lifting mechanism with a flip hopper is also provided at the front end of the garbage storage bin, and the material lifting mechanism drives the flip hopper to lift and flip through a hydraulic cylinder.

[0010] Furthermore, the gas outlet end of the gas-solid separation chamber mechanism is also connected to the gas inlet end of the cyclone dust collector mechanism, and the gas outlet end of the cyclone dust collector mechanism is connected to the gas inlet end of the secondary combustion chamber mechanism.

[0011] Furthermore, the inner side wall of the pyrolysis chamber shell is covered with a layer of pyrolysis chamber insulation.

[0012] Furthermore, the container side wall is provided with an electric control mechanism for control.

[0013] Through the above arrangement, the utility model has the following advantages:

[0014] 1) The whole process of the whole equipment from feeding to slag discharge is in a sealed state, which can minimize heat loss and effectively reduce energy consumption and operating costs;

[0015] 2) The containerized design reduces the on-site installation and commissioning steps, making the entire production, installation and commissioning process of the equipment fully controllable;

[0016] 3) The whole pyrolysis gasification furnace equipment is installed in a standard freight-sized container, which has a compact structure, small footprint, flexible use, convenient overall migration, and is conducive to export to foreign markets. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is now further described with reference to the accompanying drawings.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the main internal structure of the utility model;

[0020] Figure 3 It is a top view schematic diagram of the internal structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the pyrolysis chamber mechanism of the utility model;

[0022] Figure 5 It is a side structural schematic diagram of the gas-solid separation chamber mechanism of the utility model. DETAILED DESCRIPTION

[0023] like Figure 1-5As shown, a container-type anaerobic pyrolysis gasification furnace includes a pyrolysis chamber mechanism 5 and a secondary combustion chamber mechanism 8, the pyrolysis chamber mechanism 5 and the secondary combustion chamber mechanism 8 are located in a container 4, the pyrolysis chamber mechanism 5 includes an inclined cylindrical pyrolysis chamber inner core 54 and a pyrolysis chamber shell 52 covering the outside of the pyrolysis chamber inner core 54, the outside of the pyrolysis chamber inner core 54 and the inside of the pyrolysis chamber shell 52 form a cylindrical heating space, the two ends of the pyrolysis chamber inner core 54 are respectively supported by an inlet supporting wheel 51 and an outlet supporting wheel 55, so that the pyrolysis chamber inner core 54 is rotatably supported in the pyrolysis chamber shell 52, one end of the pyrolysis chamber inner core 54 is driven to rotate by a driving device, the air outlet end of the secondary combustion chamber mechanism 8 is connected to the heating space of the pyrolysis chamber mechanism 5, and the air outlet end of the pyrolysis chamber mechanism 5 is connected to the induced draft fan mechanism.

[0024] In order to facilitate loading, a feeding mechanism 3 is also provided at the front end of the pyrolysis chamber mechanism 5, a garbage storage bin 2 is provided at the feeding end of the feeding mechanism 3, an electro-hydraulic gate valve 21 for controlling the opening and closing of the bottom of the garbage storage bin 2 is provided at the bottom, the discharge end of the feeding mechanism 3 extends to the inner core 54 of the pyrolysis chamber, and a material lifting mechanism 1 with a flip hopper is also provided at the front end of the garbage storage bin 2, and the material lifting mechanism 1 drives the flip hopper to lift and flip through a hydraulic cylinder;

[0025] In order to effectively reduce dust, the gas outlet end of the inner core 54 of the pyrolysis chamber is also connected to the gas-solid separation chamber mechanism 6, and the bottom slag outlet of the gas-solid separation chamber mechanism 6 is provided with a slag screw conveyor; the gas outlet end of the gas-solid separation chamber mechanism 6 is also connected to the gas inlet end of the cyclone dust collector mechanism 7, and the gas outlet end of the cyclone dust collector mechanism 7 is connected to the gas inlet end of the secondary combustion chamber mechanism 8;

[0026] In order to achieve a good heat preservation effect and more effectively utilize energy, the inner side wall of the pyrolysis chamber housing 52 is covered with a layer of pyrolysis chamber insulation 53. The feeding mechanism 3 is an existing screw conveyor. In addition, the electro-hydraulic gate valve 21, the material lifting mechanism 1, the gas-solid separation chamber mechanism 6, the secondary combustion chamber mechanism 8 (i.e., having a burner), and the cyclone dust collector mechanism 7 are existing technologies, and their structures are not described in detail here.

[0027] The side wall of the container 4 is provided with an electric control mechanism 9 for controlling, which can integrate and control various actuators, such as the drive motor of the pyrolysis chamber mechanism 5, the burner of the secondary combustion chamber mechanism 8, the cylinder drive pump station of the hoist, etc.

[0028] Working principle of the utility model: the size of container 4 adopts the size of standard freight container, and the pyrolysis gasification furnace mechanism is designed and laid out according to the known size of the container to ensure the compactness of the overall layout. According to the actual layout of the pyrolysis gasification furnace, multiple door openings are designed on the container to facilitate the installation and maintenance of the pyrolysis gasification furnace, and local reinforcement is carried out to ensure the reliable installation of the overall lifting.

[0029] The processed garbage is loaded into the material lifting mechanism 1, and the garbage bin on the lifting machine is driven by the hydraulic cylinder to reach the top of the container 4. The automatic storage bin 2 on the top of the container opens, and the garbage is poured into the garbage storage bin 2. After the automatic storage bin 2 closes, the electro-hydraulic gate valve 21 at the bottom of the garbage storage bin 2 opens, allowing the garbage to fall into the feeding mechanism 3. Under the push of the spiral conveyor, the garbage enters the pyrolysis chamber core 54 of the preheated pyrolysis chamber mechanism 5.

[0030] The pyrolysis chamber mechanism 5 adopts a horizontal cylindrical design, and its axis is inclined at 3° to the horizontal plane. The pyrolysis chamber shell 52 and the pyrolysis chamber inner core 54 rotate relative to each other. At the same time, a chain driving mechanism is designed in the inlet support wheel 51, which can drive the pyrolysis chamber inner core 54 to rotate relative to the pyrolysis chamber shell 52. Due to the design of the inclination angle, the garbage falls to the lower side by its own gravity during rolling, thereby driving the garbage material in the pyrolysis chamber inner core 54 to move to the lower side of the pyrolysis chamber mechanism 5;

[0031] The waste material treated by the pyrolysis chamber mechanism 5 is pyrolyzed and gasified, and the solid residue after pyrolysis and gasification falls into the slag outlet at the bottom of the gas-solid separation chamber mechanism 6 and is discharged through the slag screw conveyor. The pyrolysis gas and part of the micro particles after pyrolysis and gasification enter the cyclone dust collector mechanism 7 through the upper exhaust port of the gas-solid separation chamber mechanism 6. After being processed by the cyclone dust collector mechanism 7, the particles fall into the slag outlet at the bottom of the cyclone dust collector mechanism 7 and are discharged.

[0032] The pyrolysis gas enters the secondary combustion chamber mechanism 8 through the exhaust port on the upper part of the cyclone dust collector mechanism 7 for full combustion. The high-temperature gas (above 850°C) after combustion enters the annular closed area between the pyrolysis chamber inner core 54 and the pyrolysis chamber insulation 53 of the pyrolysis chamber mechanism 5 through the exhaust port of the secondary combustion chamber mechanism 8, that is, the heating space, thereby heating the pyrolysis chamber inner core 54 to ensure that the pyrolysis chamber inner core 54 is always at the pyrolysis gasification temperature required for the garbage material during operation.

[0033] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A container-type anaerobic pyrolysis gasification furnace, comprising a pyrolysis chamber mechanism (5) and a secondary combustion chamber mechanism (8), characterized in that: The pyrolysis chamber mechanism (5) and the secondary combustion chamber mechanism (8) are located in the container (4). The pyrolysis chamber mechanism (5) comprises an inclined cylindrical pyrolysis chamber inner core (54) and a pyrolysis chamber shell (52) covering the outside of the pyrolysis chamber inner core (54). The outside of the pyrolysis chamber inner core (54) and the inside of the pyrolysis chamber shell (52) form a cylindrical heating space. The two ends of the pyrolysis chamber inner core (54) are respectively supported by an inlet support wheel (51) and an outlet support wheel (55), so that the pyrolysis chamber inner core (54) is rotatably supported in the pyrolysis chamber shell (52). One end of the pyrolysis chamber inner core (54) is driven to rotate by a driving device. The air outlet end of the secondary combustion chamber mechanism (8) is connected to the heating space of the pyrolysis chamber mechanism (5), and the air outlet end of the pyrolysis chamber mechanism (5) is connected to the induced draft fan mechanism.

2. The container-type anaerobic pyrolysis gasification furnace according to claim 1, characterized in that: A feeding mechanism (3) is also provided at the front end of the pyrolysis chamber mechanism (5); a garbage storage bin (2) is provided at the feeding end of the feeding mechanism (3); an electro-hydraulic gate valve (21) for controlling the opening and closing of the bottom of the garbage storage bin (2) is provided at the bottom; and a discharge end of the feeding mechanism (3) extends to the inner core (54) of the pyrolysis chamber.

3. The container-type anaerobic pyrolysis gasification furnace according to claim 1, characterized in that: The gas outlet end of the pyrolysis chamber inner core (54) is also connected to a gas-solid separation chamber mechanism (6), and a slag outlet at the bottom of the gas-solid separation chamber mechanism (6) is provided with a slag outlet screw conveyor.

4. The container-type anaerobic pyrolysis gasification furnace according to claim 2, characterized in that: A material lifting mechanism (1) with a tilting hopper is also provided at the front end of the garbage storage bin (2). The material lifting mechanism (1) drives the tilting hopper to lift and tilt via a hydraulic cylinder.

5. The container-type anaerobic pyrolysis gasification furnace according to claim 3, characterized in that: The gas outlet end of the gas-solid separation chamber mechanism (6) is also connected to the gas inlet end of the cyclone dust collector mechanism (7), and the gas outlet end of the cyclone dust collector mechanism (7) is connected to the gas inlet end of the secondary combustion chamber mechanism (8).

6. The container-type anaerobic pyrolysis gasification furnace according to claim 1, characterized in that: The inner side wall of the pyrolysis chamber shell (52) is covered with a layer of pyrolysis chamber insulation (53).

7. The container-type anaerobic pyrolysis gasification furnace according to claim 1, characterized in that: The side wall of the container (4) is provided with an electric control mechanism (9) for control.

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