Combustion-supporting air preheating device

Abstract

The utility model relates to the field of waste tire cracking, in particular to a combustion-supporting air preheating device which is arranged on a cracking furnace and comprises an air pipeline making contact with the outer surface wall of the cracking furnace, and a preheating cover is installed on the outer surface wall of the cracking furnace and covers the portion, making contact with the cracking furnace, of the air pipeline. The air preheating device has the effect of preheating air while saving equipment resources.

Description

Technical Field

[0001] This application relates to the field of waste tire pyrolysis, and in particular to a combustion air preheating device. Background Technology

[0002] With the rapid development of the automotive industry, the number of waste tires is increasing daily, causing serious environmental pollution. Therefore, countries around the world have invested significant human and material resources in researching the recycling and utilization of waste tires.

[0003] Currently, the most ideal method for treating these wastes, both domestically and internationally, is high-temperature decomposition. This involves placing waste tires in a pyrolysis furnace for high-temperature pyrolysis, recovering useful materials from the pyrolysis products for reuse. This method eliminates environmental pollution and allows for comprehensive waste utilization, turning waste into treasure and generating considerable economic benefits. Below the pyrolysis furnace is a combustion chamber for heating the furnace; this chamber requires preheated air to aid combustion.

[0004] However, conventional methods of preheating air involve heating the ventilation ducts used for air circulation using heating devices, such as using a dedicated heating furnace to heat the ventilation ducts, which is quite wasteful of equipment resources. Utility Model Content

[0005] In order to preheat air in a more economical way, this application provides a combustion air preheating device.

[0006] The combustion air preheating device provided in this application adopts the following technical solution:

[0007] A combustion air preheating device is installed on a pyrolysis furnace, including an air duct that contacts the outer wall of the pyrolysis furnace. The outer wall of the pyrolysis furnace is equipped with a preheating cover that covers the air duct in contact with the pyrolysis furnace.

[0008] By adopting the above technical solution, the combustion air preheating device can preheat the air in the air duct using the heat from the pyrolysis furnace, eliminating the need for other resources and thus saving equipment resources. The design of the preheating hood enclosing the air duct effectively enhances the heat exchange between the air duct and the pyrolysis furnace, further improving preheating efficiency.

[0009] Preferably, the outer wall of the pyrolysis furnace is fixedly connected to two heat-conducting blocks, each of which is in contact with the outer wall of the air duct.

[0010] By adopting the above technical solution, two heat-conducting blocks are fixedly connected to the outer wall of the pyrolysis furnace, and each heat-conducting block is in contact with the outer wall of the air duct, thereby enhancing the heat conduction effect, ensuring that the combustion air can fully absorb the heat emitted by the pyrolysis furnace, and further improving the preheating efficiency and the overall performance of the device.

[0011] Preferably, the preheating cover is connected to each heat-conducting block by fasteners.

[0012] By adopting the above technical solution, the preheating cover can be firmly installed on the heat-conducting block, ensuring that the preheating cover stably covers the outside of the air duct, improving the working efficiency and reliability of the entire combustion air preheating device, and facilitating the disassembly and assembly of the preheating cover.

[0013] Preferably, the preheating cover includes two vertical plates, the air duct is located between the two vertical plates, and the end of each vertical plate near the heat-conducting block is bent away from the air duct to form a mounting plate. The mounting plate is connected to the heat-conducting block by fasteners, and the other end of each vertical plate is bent away from the air duct to form a top plate. The two top plates are stacked on top of each other.

[0014] By adopting the above technical solution, the preheating cover can be stably installed on the heat-conducting block, while enhancing the structural stability of the preheating cover, improving preheating efficiency, and facilitating the disassembly and assembly of the preheating cover.

[0015] Preferably, heat-conducting plates are installed on the side walls of the two heat-conducting blocks that are far apart from each other, and each heat-conducting plate is in contact with the outer wall of the heat-conducting pipe.

[0016] By adopting the above technical solution, the effective area for heat exchange between the pyrolysis furnace and the air duct is increased, and the preheating efficiency of the combustion air is improved.

[0017] Preferably, each of the heat-conducting plates is hinged to a corresponding heat-conducting block, and each heat-conducting block is connected to a locking component for locking the corresponding heat-conducting plate.

[0018] By adopting the above technical solution, the heat-conducting plate can be adjusted and locked in a suitable position according to actual needs, improving heat conduction efficiency and the adaptability of the device. The locking component ensures the stability of the heat-conducting plate during use, preventing changes in the position of the heat-conducting plate due to external factors from affecting the heat conduction effect.

[0019] Preferably, the locking assembly includes a locking rod hinged to one side wall of the heat-conducting block, an elongated groove is formed on one side wall of the heat-conducting plate near the locking rod, a locking block is slidably connected in the elongated groove, a screw is threaded to one side wall of the heat-conducting plate along the length of the elongated groove, one end of the screw extends into the elongated groove and is rotatably connected to the locking block, one end of the locking rod is inserted into the elongated groove, and the locking block abuts against the locking rod.

[0020] By adopting the above technical solution, the locking component achieves adjustable locking within the long slot through the cooperation of the locking rod and the locking block, thereby enabling the heat-conducting plate to be stably fixed in the required position relative to the heat-conducting block, improving the heat transfer efficiency and structural stability of the device.

[0021] Preferably, each of the heat-conducting blocks has a through hole on one side wall.

[0022] By adopting the above technical solution, the through holes with through-heat-conducting blocks can effectively reduce material usage, thereby effectively reducing production costs.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Preheating air in a more resource-efficient way;

[0025] 2. Improve the working efficiency and reliability of the entire combustion air preheating device;

[0026] 3. Facilitates the disassembly and assembly of the preheating cover. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram illustrating the location of the air duct and the pyrolysis furnace in an embodiment of this application.

[0028] Figure 2 This is a schematic diagram illustrating the structure of the preheating cover in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram illustrating the structure of the locking component in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Air duct; 2. Heat-conducting block; 21. Through hole; 3. Preheating cover; 31. Vertical plate; 32. Mounting plate; 33. Top plate; 4. Heat-conducting plate; 41. Long groove; 5. Locking assembly; 51. Locking rod; 52. Locking block; 53. Screw; 6. Pyrolysis furnace. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0032] This application discloses a combustion air preheating device. (Refer to...) Figure 1 and Figure 2The combustion air preheating device includes an air duct 1 that contacts the outer wall of the pyrolysis furnace 6. One end of the air duct 1 extends to the outside and the other end extends to the combustion chamber below the pyrolysis furnace 6. The air duct 1 passes above the pyrolysis furnace 6. A preheating cover 3 is installed on the outer wall of the pyrolysis furnace 6. The preheating cover 3 is located above the air duct 1. The preheating cover 3 covers the air duct 1 that contacts the pyrolysis furnace 6, which improves the stability of the combustion air preheating and effectively improves the energy efficiency ratio of the combustion system.

[0033] Two heat-conducting blocks 2 are fixedly connected to the outer wall of the pyrolysis furnace 6. The lower surface of each heat-conducting block 2 is arc-shaped and closely adheres to the outer wall of the pyrolysis furnace 6. Each heat-conducting block 2 is located below the air duct 1, and the air duct 1 contacts the upper surface of each heat-conducting block 2. The heat-conducting blocks 2 are mainly used to enhance heat transfer.

[0034] Each heat-conducting block 2 has a through hole 21 on one side wall, which extends horizontally through the heat-conducting block 2, saving material used in the heat-conducting block 2.

[0035] Reference Figure 1 and Figure 2 The preheating cover 3 includes two vertical plates 31, and the air duct 1 is located between the two vertical plates 31. The lower end of each vertical plate 31 is bent vertically away from the air duct 1 to form a mounting plate 32. The mounting plate 32 is connected to the heat-conducting block 2 by fasteners, which are screws.

[0036] The upper end of each vertical plate 31 is bent vertically towards the air duct 1 to form a top plate 33. The two top plates 33 are stacked on top of each other to ensure the sealing and heat insulation effect of the preheating cover 3. Through this design, the preheating cover 3 can better wrap the air duct 1, thereby increasing the heat exchange area between the air duct 1 and the outer wall of the pyrolysis furnace 6 and improving the preheating efficiency.

[0037] Reference Figure 2 and Figure 3 Each of the two heat-conducting blocks 2 has a heat-conducting plate 4 hinged to one side away from each other. Each heat-conducting block 2 is connected to a locking component 5 that locks the heat-conducting plate 4. Each heat-conducting plate 4 is located below the air duct 1 and in contact with the outer wall of the air duct 1, which increases the heat transfer path.

[0038] The heat-conducting plate 4 and the heat-conducting block 2 are connected by a hinge, so that the angle of the heat-conducting plate 4 can be adjusted when necessary. This design makes the heat-conducting plate 4 easy to disassemble when maintenance or replacement is required, and also facilitates adjustment of the optimal heat transfer angle.

[0039] The locking assembly 5 includes a locking rod 51 hinged to one side wall of the heat-conducting block 2. The locking rod 51 is located below the heat-conducting plate 4, and an elongated groove 41 is formed on the lower surface of the heat-conducting plate 4. A locking block 52 is slidably connected in the elongated groove 41. The two heat-conducting plates 4 are threadedly connected to the side walls of each other, and the screws 53 are arranged along the length of the elongated groove 41.

[0040] One end of the screw 53 extends into the elongated groove 41 and is rotatably connected to the locking block 52. The end of the locking rod 51 away from the heat-conducting block 2 is rotatably inserted into the elongated groove 41, and the locking block 52 is tightly pressed against the locking rod 51.

[0041] In this way, the position of the locking block 52 can be adjusted by rotating the screw 53, thereby adjusting the locking state of the locking rod 51, so that the heat-conducting plate 4 can be stably positioned at a specific angle.

[0042] The implementation principle of the combustion air preheating device in this application embodiment is as follows: by adding heat-conducting block 2, heat-conducting plate 4 and its locking mechanism, better heat transfer and stable preheating effect are achieved, which facilitates the preheating of air duct 1 without the need to use other resources to preheat air duct 1, thus saving resources.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A combustion air preheating device, which is installed on a pyrolysis furnace (6), characterized in that: The device includes an air duct (1) that contacts the outer wall of the pyrolysis furnace (6), and a preheating cover (3) is installed on the outer wall of the pyrolysis furnace (6), which covers the air duct (1) that contacts the pyrolysis furnace (6).

2. The combustion air preheating device according to claim 1, characterized in that: The outer wall of the pyrolysis furnace (6) is fixedly connected to two heat-conducting blocks (2), each of which is in contact with the outer wall of the air duct (1).

3. The combustion air preheating device according to claim 2, characterized in that: The preheating cover (3) is connected to each heat-conducting block (2) by fasteners.

4. The combustion air preheating device according to claim 3, characterized in that: The preheating cover (3) includes two vertical plates (31), and the air duct (1) is located between the two vertical plates (31). Each vertical plate (31) is bent at one end near the heat-conducting block (2) in a direction away from the air duct (1) to form an mounting plate (32). The mounting plate (32) is connected to the heat-conducting block (2) by fasteners. The other end of each vertical plate (31) is bent in a direction near the air duct (1) to form a top plate (33). The two top plates (33) are stacked on top of each other.

5. The combustion air preheating device according to claim 2, characterized in that: Each of the two heat-conducting blocks (2) has a heat-conducting plate (4) installed on one side wall that is far apart from each other, and each heat-conducting plate (4) is in contact with the outer wall of the air duct (1).

6. The combustion air preheating device according to claim 5, characterized in that: Each of the heat-conducting plates (4) is hinged to a corresponding heat-conducting block (2), and each of the heat-conducting blocks (2) is connected to a locking component (5) for locking the corresponding heat-conducting plate (4).

7. The combustion air preheating device according to claim 6, characterized in that: The locking assembly (5) includes a locking rod (51) hinged to one side wall of the heat-conducting block (2). A long groove (41) is provided on one side wall of the heat-conducting plate (4) near the locking rod (51). A locking block (52) is slidably connected in the long groove (41). A screw (53) is threadedly connected to one side wall of the heat-conducting plate (4) along the length direction of the long groove (41). One end of the screw (53) extends into the long groove (41) and is rotatably connected to the locking block (52). One end of the locking rod (51) is inserted into the long groove (41), and the locking block (52) is tightly abutted against the locking rod (51).

8. The combustion air preheating device according to claim 2, characterized in that: Each of the heat-conducting blocks (2) has a through hole (21) on one side wall.

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