Pyrolysis device with hanging beam suspension supporting structure

Abstract

The utility model relates to the technical field of environmental protection, and discloses a pyrolysis device with a hanging beam suspension supporting structure, which comprises a U-shaped pyrolysis tank and a pyrolysis tank supporting structure, the U-shaped pyrolysis tank at least comprises two structures which are connected into a whole and have U-shaped cross sections; the pyrolysis tank supporting structure comprises a frame, a hanging beam and a hanging beam fixing base, the two ends of the hanging beam are in sliding connection with the frame through the hanging beam fixing base, each U-shaped structure of the U-shaped pyrolysis tank is in hanging connection with the frame through the hanging beam vertically penetrating through the upper portion of the U-shaped structure, and the auger shaft is not directly connected with the U-shaped pyrolysis tank; a feeding hole, an observation access hole, an anti-explosion valve mounting hole and an evaporated steam outlet are formed in the flat surface of the top of the U-shaped pyrolysis tank. The pyrolysis tank is hung through the hanging beam, so that the safety, the stability and the reliability of equipment are prevented from being influenced by thermal deformation; the material filling coefficient is large; coking of the inner wall is avoided; the heating area is enlarged; discharging, heating and overhauling are convenient; the treatment capacity of pyrolysis equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to a pyrolysis device with a hanging beam suspension support structure. Background Art

[0002] The treatment of industrial solid waste containing organic pollutants (such as oil sludge, tar residue, agricultural and forestry waste, etc.) mostly adopts pyrolysis technology, hoping that the crude oil, tar and other organic components, water and other organic components in the waste can be heated, evaporated and cracked and gasified through pyrolysis treatment, separated from the solid phase material, and then condensed to recover the base oil and cracking liquid, and the remaining solid phase residues meet the emission standards or are recycled. However, the existing pyrolysis tanks for treating solid waste containing organic pollutants are all O-type tanks, which have many inherent technical problems. First, the pyrolysis tanks are supported at the bottom or both ends, and the support parts are deformed by heat, which can easily cause overall failure of the equipment; second, the evaporation steam channel is located at the center of the horizontally placed pyrolysis tank cylinder, and the air outlet channel is easily blocked, resulting in a low filling coefficient, which generally cannot be greater than 0.5; third, the inner wall of the pyrolysis tank is easy to coke, affecting heat transfer; fourth, the bottom of the pyrolysis tank is supported, the heating area is limited, and the heat exchange capacity and efficiency of the pyrolysis tank are low; fifth, the upper part of the O-type tank is non-planar, which is not conducive to the installation of various functional mechanisms, affecting the convenience of maintenance and the safety of operation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a pyrolysis device with a hanging beam suspension support structure, and its technical solution is as follows:

[0004] A pyrolysis device with a hanging beam suspension support structure, comprising a pyrolysis tank and a pyrolysis tank support structure; the pyrolysis tank is a U-shaped pyrolysis tank, which comprises at least two structures with a U-shaped cross section connected as one body, an auger power mechanism is installed inside each U-shaped structure, the auger power mechanism comprises an auger shaft and a spiral sheet fixed on the auger shaft, and the top of the U-shaped pyrolysis tank is set as a flat surface; the pyrolysis tank support structure comprises a frame, a hanging beam and a hanging beam fixed base, the two ends of the hanging beam are slidably connected to the frame through the hanging beam fixed base, each U-shaped structure of the U-shaped pyrolysis tank is suspended and connected to the frame through a hanging beam vertically crossing the upper part thereof, a plurality of hanging beams are evenly spaced in the length direction of the U-shaped pyrolysis tank, the two ends of the auger shaft are movably fixed to the frame through the auger shaft support base, and the auger shaft is not directly connected to the U-shaped pyrolysis tank.

[0005] Furthermore, a thermal insulation cushion layer is arranged between the contact surfaces of the hanging beam and the wall and frame of the U-shaped pyrolysis tank.

[0006] Furthermore, the movable fixing method of the auger shaft also includes: a sliding bearing and a bearing sleeve are provided at a position on the auger shaft that requires support due to its excessive length, and the bearing sleeve is suspended on a suspension beam.

[0007] Furthermore, a slag outlet is provided at the bottom or side of the U-shaped pyrolysis tank.

[0008] Furthermore, a feed inlet is provided on the flat top surface of the U-shaped pyrolysis tank.

[0009] Furthermore, an observation and inspection port is provided on the flat top surface of the U-shaped pyrolysis tank.

[0010] Furthermore, an explosion-proof valve installation port is provided on the flat surface on the top of the U-shaped pyrolysis tank.

[0011] Furthermore, the top flat surface of the U-shaped pyrolysis tank is provided with an evaporation steam outlet.

[0012] Furthermore, the two ends of the hanging beam are slidably connected to the frame through the hanging beam fixing base in the following manner: longitudinally placed bolts are provided on the hanging beam fixing base, and sliding grooves that slidably cooperate with the bolts are provided on the frame.

[0013] Compared with the prior art, the utility model mainly has the following beneficial technical effects:

[0014] 1. The setting of the hanging beam suspension support structure can avoid the deformation of the support point when the pyrolysis tank is heated, which may affect the safety, stability and reliability of the equipment.

[0015] 2. The U-shaped design of the pyrolysis tank can make the material filling coefficient more than twice that of the O-type pyrolysis tank.

[0016] 3. The auger shaft is not directly connected to the pyrolysis tank, so that the gap between the auger piece and the inner wall of the cracking tank can be adjusted left and right, up and down, which effectively solves the problem of internal materials sticking to the inner wall of the pyrolysis tank and coking to affect heat transfer and the pyrolysis tank being deformed by heat, causing the auger shaft and the pyrolysis tank to get stuck.

[0017] 4. The pyrolysis tank adopts a hanging structure, removing the bottom support of the pyrolysis tank, which can expand the heating area at the bottom of the pyrolysis tank and improve the heat exchange capacity and efficiency of the pyrolysis tank.

[0018] 5. The bottom of the pyrolysis tank is suspended, which is convenient for setting the discharge port to discharge the material and setting the heating device to heat the pyrolysis tank.

[0019] 6. An insulation cushion is set between the contact surface of the hanging beam and the U-shaped pyrolysis tank wall and frame, so that the frame can isolate heat conduction and stay away from the heating surface at the bottom of the pyrolysis tank, effectively avoiding equipment failure and damage caused by thermal deformation.

[0020] 7. The auger shaft can also be hung on the hanging beam, so that the pyrolysis tank can be appropriately extended as needed, increasing the processing capacity of the pyrolysis equipment.

[0021] 8. The flat surface on the top of the U-shaped pyrolysis tank can be used to set the feed port, observation and maintenance port, explosion-proof valve installation port and evaporation steam outlet, which greatly improves the convenience of feeding, observation and maintenance of the pyrolysis tank and the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic front view of the structure layout of the utility model;

[0023] Figure 2 It is a side view schematic diagram of the structure layout of the utility model;

[0024] Figure 3 It is a top view schematic diagram of the structure layout of the utility model;

[0025] Figure 4 This is a top view schematic diagram of the distribution and connection of the suspension beam and frame of the utility model;

[0026] Figure 5 for Figure 4 A magnified schematic diagram of part A;

[0027] In the figure: 1-U-type pyrolysis tank, 1.1-U-type pyrolysis tank top, 2-hanging beam, 3-frame, 4-auger shaft support base, 5-auger shaft, 6-slag outlet, 7-observation and maintenance port, 8-evaporation steam outlet, 9-feeding port, 10-explosion-proof valve installation port, 11-hanging beam fixing base, 12-bolts, 13-slide. DETAILED DESCRIPTION

[0028] The utility model is described in detail below in conjunction with the embodiments and drawings. Example 1

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A pyrolysis device with a hanging beam suspension support structure, comprising a pyrolysis tank and a pyrolysis tank support structure; the pyrolysis tank is a U-shaped pyrolysis tank 1, which comprises at least two structures with a U-shaped cross section connected as one, each U-shaped structure is equipped with an auger power mechanism, the auger power mechanism comprises an auger shaft 5 and a spiral sheet fixed on the auger shaft 5, and the top 1.1 of the U-shaped pyrolysis tank is set as a flat surface; the pyrolysis tank support structure comprises a frame 3, a hanging beam 2 and a hanging beam fixed base, the two ends of the hanging beam 2 are slidably connected to the frame 3 through the hanging beam fixed base 11, each U-shaped structure of the U-shaped pyrolysis tank 1 is suspended and connected to the frame 3 through the hanging beam 2 vertically crossing the upper part thereof, and a plurality of hanging beams 2 are evenly spaced in the length direction of the U-shaped pyrolysis tank 1, and the two ends of the auger shaft 5 are movably fixed on the frame 3 through the auger shaft support base 4, and the auger shaft 5 is not directly connected to the U-shaped pyrolysis tank 1. By setting the hanging beam suspension support structure, it is avoided that the support point is deformed by heat when the pyrolysis tank is heated, which affects the safety, stability and reliability of the equipment. The U-shaped design of the pyrolysis tank can make the material filling coefficient more than twice that of the O-type pyrolysis tank. The auger shaft 5 is far away from the heating surface of the U-shaped pyrolysis tank 1, and will not be deformed due to excessive temperature, which will affect the stability of the equipment; this structure can easily adjust the left and right positions and up and down heights of the auger shaft 5 and the U-shaped pyrolysis tank 1, thereby minimizing the gap between the auger shaft 5 and the inner wall of the U-shaped pyrolysis tank 1, reducing the thickness of the coking layer, and cleaning the coking layer at any time to ensure good heat transfer efficiency of the U-shaped pyrolysis tank 1. The pyrolysis tank adopts a hanging structure and removes the bottom support of the pyrolysis tank, which can expand the heating area at the bottom of the pyrolysis tank and improve the heat exchange capacity and efficiency of the pyrolysis tank. Example 2

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A pyrolysis device with a hanging beam suspension support structure, based on the technical solution recorded in Example 1, a thermal insulation cushion layer is arranged between the hanging beam 2 and the contact surface of the U-shaped pyrolysis tank 1 wall and the frame 3, so that the frame 3 is isolated from heat conduction and can be away from the bottom heating surface of the U-shaped pyrolysis tank 1, effectively avoiding equipment failure and damage caused by thermal deformation. Example 3

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A pyrolysis device with a suspension beam support structure, based on the technical solution described in Example 1, the movable fixing method of the auger shaft 5 also includes: a sliding bearing and a bearing sleeve are provided on the auger shaft 5 at a position that needs support due to its excessive length, and the bearing sleeve is suspended on the suspension beam 2, so that the pyrolysis tank can be appropriately extended as needed, thereby increasing the processing capacity of the pyrolysis equipment. Example 4

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A pyrolysis device with a hanging beam suspension support structure, based on the technical solution described in Example 1, because the bottom of the U-shaped pyrolysis tank 1 is suspended, it is convenient to set a slag outlet 6 at the bottom or side of the U-shaped pyrolysis tank 1, and it is also convenient to set a heating device to heat the U-shaped pyrolysis tank 1. Example 5

[0033] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A pyrolysis device with a hanging beam suspension support structure, based on the technical solution described in Example 1, a U-shaped pyrolysis tank top 1.1 flat surface is provided with a feed port 9, an observation and maintenance port 7, an explosion-proof valve installation port 10 and an evaporation steam outlet 8, which greatly improves the convenience of feeding, observation and maintenance of the pyrolysis tank and the safety of operation. Example 6

[0034] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A pyrolysis device with a suspension beam support structure, based on the technical solution described in Example 1, the two ends of the suspension beam 2 are slidably connected with the frame 3 through the suspension beam fixing base 11 in the following manner: the suspension beam fixing base 11 is provided with a longitudinally placed bolt 12, and the frame 3 is provided with a slide groove 13 that slidably cooperates with the bolt 12. The sliding connection method facilitates the installation and position adjustment of the suspension beam 2.

[0035] In order to enable those skilled in the art to better understand the present invention, the specific operation process of the present invention and explanations of related issues are briefly described as follows:

[0036] The material enters the tank from the feed port 9 at the top 1.1 of the U-shaped pyrolysis tank, and the feed port 9 is closed. Under the disturbance of the auger, the material is evenly distributed inside the U-shaped pyrolysis tank 1 until the U-shaped pyrolysis tank 1 is filled. After the bottom of the U-shaped pyrolysis tank 1 is heated, the material in the tank is heated, and the gasifiable part of the material is gasified and discharged from the evaporation steam outlet 8. When the material inside the U-shaped pyrolysis tank 1 reaches the design temperature and stays for a sufficient time, the slag outlet 6 is opened to discharge the cracking slag, and the cracking process is completed. When the inner wall of the U-shaped pyrolysis tank 1 has coking and hanging on the wall due to various reasons, the hanging beam 2 can be raised, or the hanging beam 2 can be moved left and right to change the gap between the inner wall of the U-shaped pyrolysis tank 1 and the auger blades, and the auger can be rotated to clean the coking layer on the inner wall of the U-shaped pyrolysis tank 1 to improve the heating effect. When explosion occurs inside the U-shaped pyrolysis tank 1 due to various special reasons, the explosion-proof valve on the top of the U-shaped pyrolysis tank 1 can automatically open to vent the explosion to protect the safety of equipment and personnel. After the explosion relief is completed, it automatically closes by gravity to prevent secondary combustion. When the insulation layer of the U-shaped pyrolysis tank 1 or the heating device is damaged or fails, since the contact surface between the frame and the U-shaped pyrolysis tank 1 is small and the distance from the heating surface is far enough, the equipment will not be damaged due to the damage of the insulation layer.

[0037] The connection between the auger shaft 5 and the U-shaped pyrolysis tank 1 is a stainless steel expansion joint, which has lateral and axial free movement, so when the auger shaft 5 and the U-shaped pyrolysis tank 1 move relative to each other, the seal is also effective and there will be no leakage problem due to the movement of position.

[0038] The gap between the auger and the auger side wall (i.e., the pyrolysis tank wall) is a tuning issue. The basic principle of tuning is: by adjusting the relative positions of the fixed base of the auger side wall (i.e., the pyrolysis tank wall) and the auger shaft base, the auger blades and the auger side wall (i.e., the pyrolysis tank wall) are brought as close as possible (with the smallest gap) without interfering with the rotation of the auger shaft 5 and its blades, thereby fundamentally avoiding collision between the auger shaft 5 and the side wall.

[0039] Coking usually occurs on the heated surface. Since only the curved surface of the U-shaped pyrolysis tank 1 is heated, as long as the auger blades are as close to the curved surface of the U-shaped pyrolysis tank 1 as possible, it is possible to avoid the gap being too large to form a coking layer and affect the heat transfer efficiency. In other words, the auger blades remove the coking on the inner wall of the U-shaped pyrolysis tank 1 by rotating, and the smaller the gap, the cleaner it is; since the rotation and coking are operated synchronously, no real coking layer will be formed.

Claims

1. A pyrolysis device with a hanging beam suspension support structure, characterized in that: It comprises a pyrolysis tank and a pyrolysis tank support structure; the pyrolysis tank is a U-shaped pyrolysis tank, which comprises at least two structures with a U-shaped cross section connected as one body, an auger power mechanism is installed inside each U-shaped structure, the auger power mechanism comprises an auger shaft and a spiral sheet fixed on the auger shaft, and the top of the U-shaped pyrolysis tank is set as a flat surface; the pyrolysis tank support structure comprises a frame, a hanging beam and a hanging beam fixed base, the two ends of the hanging beam are slidably connected to the frame through the hanging beam fixed base, each U-shaped structure of the U-shaped pyrolysis tank is suspended and connected to the frame through a hanging beam vertically crossing the upper part thereof, a plurality of hanging beams are evenly spaced in the length direction of the U-shaped pyrolysis tank, the two ends of the auger shaft are movably fixed to the frame through the auger shaft support base, and the auger shaft is not directly connected to the U-shaped pyrolysis tank.

2. A pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: A heat-insulating cushion layer is arranged between the contact surfaces of the hanging beam and the wall and frame of the U-shaped pyrolysis tank.

3. The pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: The movable fixing method of the auger shaft also includes: a sliding bearing and a bearing sleeve are provided on the auger shaft at a position that requires support due to its excessive length, and the bearing sleeve is suspended on a hanging beam.

4. The pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: The bottom or side of the U-shaped pyrolysis tank is provided with a slag outlet.

5. The pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: A feed inlet is arranged on the flat surface at the top of the U-shaped pyrolysis tank.

6. The pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: The top flat surface of the U-shaped pyrolysis tank is provided with an observation and maintenance opening.

7. The pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: The flat surface on the top of the U-shaped pyrolysis tank is provided with an explosion-proof valve installation opening.

8. The pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: The flat surface on the top of the U-shaped pyrolysis tank is provided with an evaporation steam outlet.

9. The pyrolysis device with a suspension beam support structure according to claim 1, characterized in that: The two ends of the hanging beam are slidably connected with the frame through the hanging beam fixing base in the following way: longitudinally placed bolts are provided on the hanging beam fixing base, and sliding grooves that slidably cooperate with the bolts are provided on the frame.

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