Material turning device of thermal cracking furnace

Abstract

The invention discloses a material turning device for a thermal cracking furnace. The material turning device comprises a plow body, a plow frame, a suspension rod, a sealing sleeve, a suspension frame, a nut and a mounting bottom plate. Wherein the plurality of plow bodies are installed on the plow frame, the plow frame is connected with the two suspension rods, each suspension rod penetrates through one sealing sleeve and is connected with the suspension frame by a nut through an opening in the suspension frame, and the lower portion of the suspension frame is connected with the installation bottom plate. The turning device is installed on the thermal cracking furnace, solid waste materials which move forwards in a hearth and are subjected to cracking reaction at the same time are turned, so that materials in a solid waste accumulation body can be turned to the surface of the accumulation body and are exposed in a high-temperature oxygen-free environment in the furnace, and organic components in the materials can be subjected to cracking reaction in time; the problem that the content of organic components in the cracking residues exceeds the standard is solved, the solid waste treatment efficiency and quality of the thermal cracking furnace are improved, and meanwhile local temperature loss in the thermal cracking furnace and damage to the oxygen-free environment cannot be caused.

Description

Technical Field

[0001] The invention belongs to the technical field of solid waste thermal cracking, and in particular relates to a material turning device for a thermal cracking furnace. Background Art

[0002] The thermal cracking technology of solid waste materials is to place the solid waste materials in a high temperature (400℃~1000℃) oxygen-free environment to cause the organic components in the solid waste materials to undergo cracking reactions, generating harmless combustible gases with small molecular structures that are discharged, and ultimately leaving only indecomposable inorganic substances in the solid waste materials - cracking residues, thereby achieving the purpose of harmless, reduced and resource-based treatment of solid waste materials.

[0003] After the solid waste materials are fed into the thermal cracking furnace, the state of the solid waste materials in the thermal cracking furnace is in the form of a pile of objects. The continuous material pile moves forward with the conveying device and is cracked. Since the temperature inside the pile is lower than the furnace temperature, the cracking reaction rate of the organic components of the materials inside the pile is slowed down, which will cause the organic content of the cracking residue discharged from the thermal cracking furnace to still exceed the standard and fail to meet the emission standards specified by the national standard. The solid waste thermal cracking reaction needs to be carried out at a normal speed in a high temperature (400℃~1000℃) oxygen-free environment. Therefore, the furnace of the thermal cracking furnace must maintain a high temperature and have good sealing to prevent the air outside the furnace from entering the furnace to ensure the oxygen-free environment in the furnace. It is very difficult to achieve rapid thermal cracking by turning the solid waste pile objects in the furnace from outside the furnace so that the materials inside the pile can also fully contact the high temperature and oxygen-free environment in the furnace. It is easy to cause external air to enter the furnace, causing local deheating and destruction of the oxygen-free environment in the furnace. In the past, the commonly used method was to extend the residence time of the solid waste in the thermal cracking furnace to increase the cracking reaction time or to re-enter the furnace for cracking reaction treatment of the cracking residue that did not meet the treatment standards, which greatly reduced the efficiency and quality of the thermal cracking furnace in treating solid waste.

[0004] In order to solve the above problems, a material turning device for a thermal cracking furnace is designed to turn over the solid waste material pile that moves forward in the high-temperature (400℃~1000℃) oxygen-free environment of the thermal cracking furnace and undergoes cracking reactions at the same time, so that the materials inside the solid waste material pile are turned to the surface of the pile and exposed to the high-temperature oxygen-free environment of the furnace, so that the organic components in the materials can undergo cracking reactions in time. This is very important for solving the problem of excessive organic component content in the cracking residue, improving the efficiency and quality of the thermal cracking furnace in treating solid waste materials, and at the same time not causing local deheating and damage to the oxygen-free environment in the furnace of the thermal cracking furnace. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a material turning device for a thermal cracking furnace, which has a simple structure, reasonable design, and is practical and reliable. It not only solves the problem of excessive organic component content in the cracking residue, but also improves the efficiency and quality of the thermal cracking furnace in treating solid waste materials, and does not cause local dethermia and damage to the oxygen-free environment in the furnace of the thermal cracking furnace.

[0006] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: a plow body (1), a plow frame (2), a hanging rod (3), a sealing sleeve (4), a hanging frame (5), a nut (6) and a mounting base plate (7), wherein: a plurality of plow bodies (1) are installed on the plow frame (2), the plow frame (2) is connected to two hanging rods (3), each hanging rod (3) passes through a sealing sleeve (4) and is connected to the hanging frame (5) by a nut (6) through an opening on the hanging frame (5), and the bottom of the hanging frame (5) is connected to the mounting base plate (7).

[0007] As a preferred embodiment of the present invention, the material turning device for a thermal cracking furnace is characterized in that: the plow body (1) has a plurality of plow bodies (1), each of which is composed of two rectangular axes (1-1) and a plow surface (1-2), and the plow surface (1-2) has three angles, namely: a starting angle α, a turning angle β, and a pushing angle θ, wherein:

[0008] tgα=tgεx sinθ

[0009] tgβ=tgεx cosθ

[0010] As a preferred embodiment of the present invention, the plow frame (2) is composed of two connecting plates (2-1) and (2-2) and a plurality of pin shafts with holes (2-3). The connecting plates (2-1) and (2-2) are provided with a plurality of rectangular holes and circular holes corresponding to each other. The two rectangular shafts (1-1) of the plow body (1) can be inserted into the corresponding rectangular holes on the connecting plates (2-1) and (2-2). The connecting plates (2-1) and (2-2) are connected together by passing the pin shafts with holes (2-3) through the circular holes on the two connecting plates (2-1) and (2-2), thereby forming a complete plow frame (2). When the connecting plates (2-1) and (2-2) are connected, the two pin shafts with holes (2-3) pass through the corresponding circular holes on the suspension rod (3), thereby connecting the plow frame (2) and the suspension rod (3) together.

[0011] The beneficial effects of the present invention are as follows: the device can effectively turn over the materials moving forward and being cracked on the conveying device in the pyrolysis furnace during operation, so that all solid waste materials have the opportunity to be exposed to the surface of the material accumulation body and be in the high-temperature oxygen-free environment of the furnace, which significantly improves the cracking rate of the organic components contained in the materials, solves the problem of excessive organic component content in the cracking residue, improves the efficiency and quality of the pyrolysis furnace in treating solid waste materials, and will not cause local dethermia and damage to the oxygen-free environment in the pyrolysis furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 is a schematic structural diagram of a plow body (1) of the present invention;

[0014] Figure 3 is an enlarged schematic diagram of the plow surface (1-2) of the present invention;

[0015] Figure 4 is a schematic structural diagram of a plow frame (2) of the present invention;

[0016] Figure 5 It is a schematic diagram of the installation of the present invention on a thermal cracking furnace; DETAILED DESCRIPTION

[0017] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0018] like Figure 1 As shown, this specific embodiment adopts the following technical scheme: a material turning device for a thermal cracking furnace, comprising: a plow body (1), a plow frame (2), a hanging rod (3), a sealing sleeve (4), a hanging frame (5), a nut (6) and a mounting base plate (7), wherein: a plurality of plow bodies (1) are mounted on the plow frame (2), the plow frame (2) is connected to two hanging rods (3), each hanging rod (3) passes through a sealing sleeve (4) and is connected to the hanging frame (5) by a nut (6) through an opening on the hanging frame (5), and the bottom of the hanging frame (5) is connected to the mounting base plate (7).

[0019] like Figure 2 and Figure 3 As shown, the plow body (1) is composed of a rectangular shaft (1-1) and a plow surface (1-2), and the plow surface (1-2) of the plow body (1) has three angles, namely: a starting angle α, a turning angle β, and a pushing angle θ. Among them:

[0020] tgα=tgεx si nθ

[0021] tgβ=tgεx cosθ

[0022] As a result of the combined effect of the three angles, the material that contacts the plow surface (1-2) and undergoes relative displacement is lifted from the bottom, turned over, and pushed to the side of the plow surface (1-2).

[0023] like Figure 4 As shown, the plow frame (2) is composed of two connecting plates (2-1) and (2-2) and a plurality of pin shafts with holes (2-3). The connecting plates (2-1) and (2-2) are provided with a plurality of rectangular holes and circular holes corresponding to each other. The two rectangular shafts of the plow body (1) can be inserted into the corresponding rectangular holes on the connecting plates (2-1) and (2-2). The connecting plates (2-1) and (2-2) are connected together by passing the pin shafts with holes (2-3) through the circular holes on the two connecting plates (2-1) and (2-2). Thus, a complete plow frame (2) is formed. Two pin shafts with holes (2-3) pass through the corresponding circular holes on the suspension rod (3) when connecting the connecting plates (2-1) and (2-2), thereby connecting the plow frame (2) and the suspension rod (3) together.

[0024] like Figure 5 , Figure 2 , Figure 3 As shown, the present invention is installed on the pyrolysis furnace through the installation base plate (7), the plow body (1), the plow frame (2) and the hanging rod (3) below the installation base plate (7) are all located in the furnace of the pyrolysis furnace, and the plow surface (1-2) of the plow body (1) contacts the solid waste material in the furnace. As the solid waste material moves forward along with the conveying device in the pyrolysis furnace, a relative displacement occurs between the solid waste material and the plow surface (1-2), and the material is picked up from the bottom, turned over and pushed to the side of the plow surface (1-2), so that the solid waste material in the material accumulation body is turned over to the surface of the accumulation body and exposed to the high temperature environment of the furnace, thereby accelerating the cracking reaction speed of the organic components contained in the material. The sealing sleeve (4) closes the gap generated when the hanging rod (3) passes through the furnace, isolates the passage for the air outside the furnace to enter the furnace, and prevents the air outside the furnace from entering the furnace, thereby avoiding the local temperature loss in the furnace and the damage to the oxygen-free environment in the furnace.

[0025] In summary, the design concept of this specific implementation method is as follows: during the operation of the thermal cracking furnace, the material accumulation body moving forward and being cracked on the conveying device in the furnace contacts and produces relative displacement with the plow surface (1-2) of the plow body (1) on the material turning device, so that the material inside the material accumulation body is picked up from the bottom by the plow surface (1-2), turned over and pushed to the side of the plow surface (1-2), so that the material inside the material accumulation body has the opportunity to be on the surface of the accumulation body and exposed to the high temperature and oxygen-free environment of the furnace, so that all organic components in the material can undergo cracking reaction in time, so that the cracking reaction of the organic components in the solid waste material is carried out faster and more thoroughly.

[0026] Through practice, this specific implementation method ensures that the solid waste materials moving forward and being cracked on the conveying device in the thermal cracking furnace are effectively turned over during operation, so that the materials inside the solid waste material accumulation body can be effectively turned over to the surface of the accumulation body and exposed to the high temperature environment of the furnace, so that the organic components contained in the materials can produce cracking reactions in time, solving the problem of excessive organic component content in the cracking residue, improving the efficiency and quality of the thermal cracking furnace in treating solid waste materials, and not causing local hypothermia and damage to the oxygen-free environment in the furnace of the thermal cracking furnace.

[0027] Although the contents, features and effects of the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material turning device for a thermal cracking furnace, comprising: A plow body (1), a plow frame (2), a hanging rod (3), a sealing sleeve (4), a hanging frame (5), a nut (6) and a mounting base plate (7), wherein: a plurality of plow bodies (1) are mounted on the plow frame (2), the plow frame (2) is connected to two hanging rods (3), each hanging rod (3) passes through a sealing sleeve (4) and is connected to the hanging frame (5) by a nut (6) through an opening on the hanging frame (5), and the bottom of the hanging frame (5) is connected to the mounting base plate (7).

2. A thermal cracking furnace material turning device according to claim 1, characterized in that: The plow body (1) has a plurality of plow bodies (1), each of which is composed of two rectangular axes (1-1) and a plow surface (1-2). The plow surface (1-2) has three angles, namely: a starting angle α, a turning angle β, and a pushing angle θ, wherein: tgα=tgε×sinθ, tgβ=tgε×cosθ.

3. A thermal cracking furnace material turning device according to claim 1, characterized in that: The plow frame (2) is composed of two connecting plates (2-1) and (2-2) and a plurality of pin shafts with holes (2-3). The connecting plates (2-1) and (2-2) are provided with a plurality of rectangular holes and circular holes corresponding to each other. The two rectangular shafts (1-1) of the plow body (1) can be inserted into the corresponding rectangular holes on the connecting plates (2-1) and (2-2). The pin shafts with holes (2-3) are then passed through the circular holes on the two connecting plates (2-1) and (2-2) to connect the connecting plates (2-1) and (2-2) together, thereby forming a complete plow frame (2). When connecting the connecting plates (2-1) and (2-2), the two pin shafts with holes (2-3) pass through the corresponding circular holes on the hanging rod (3) to connect the plow frame (2) and the hanging rod (3) together.

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