Flue cooling device for aluminum smelting workshop

Abstract

The utility model provides a flue cooling device for an aluminum smelting workshop, which belongs to the technical field of aluminum smelting flue cooling and comprises a plurality of sleeve air cooling structures hermetically communicated on a smoke exhaust main pipe, temperature sensors are arranged on the inner sides of the sleeve air cooling structures, and hanging bracket structures are wound on the outer sides of the sleeve air cooling structures. The air outlet end of the sleeve air cooling structure fixedly communicates with one end of a hot air pipe, and the other end of the hot air pipe communicates with a blower nozzle of the aluminum smelting furnace. The air inlet end of the sleeve air cooling structure communicates with the air outlet end of the cold air pipe in a sealed mode, the air inlet end of the cold air pipe communicates with the air supply structure, the air supply structure and the temperature sensor are electrically connected with the controller, and the controller and the air supply structure are placed on the ground. The sleeve air cooling structure communicates with the smoke exhaust main pipe, the sleeve air cooling structure can be conveniently disassembled and overhauled, one end of the sleeve air cooling structure communicates with the air supply structure through the cold air pipe and is used for cooling the smoke exhaust main pipe, and explosion caused by the fact that the temperature of the smoke exhaust main pipe is too high can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum melting flue cooling, and particularly relates to a flue cooling device for an aluminum melting workshop. Background Art

[0002] Due to the excessive amount of flue gas when the furnace door at the melting site is opened, the flue gas processed by the smoke exhaust system has the characteristics of high temperature and containing combustible carbon particles. When the pipeline passes through the flue gas, the pipeline temperature will be too high. When the concentration of combustible particles reaches the limit value, an explosion may occur at a high temperature. Content of the Utility Model

[0003] The purpose of the utility model is to provide a flue cooling device for an aluminum melting workshop to solve the above problems.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] A flue cooling device for an aluminum melting workshop includes a plurality of sleeve air-cooling structures sealed and communicated with a main exhaust pipe. The main exhaust pipe is communicated with a collecting pipe of a corresponding aluminum melting furnace through a plurality of branch pipes. A temperature sensor is arranged inside the sleeve air-cooling structure. A hanger structure is wound around the outside of the sleeve air-cooling structure. The top end of the hanger structure is connected to the top surface of the workshop. One end of a hot air pipe is fixedly communicated with the air outlet end of the sleeve air-cooling structure, and the other end of the hot air pipe is communicated with the air blowing port of the aluminum melting furnace;

[0006] The air inlet end of the sleeve air-cooling structure is sealed and communicated with the air outlet end of a cold air pipe. The air inlet end of the cold air pipe is communicated with an air supply structure. The air supply structure, the temperature sensor and a controller are electrically connected. The controller and the air supply structure are placed on the ground.

[0007] Preferably, the sleeve air-cooling structure includes an inner pipe, which is communicated with the main exhaust pipe and has the same diameter. The temperature sensor is arranged inside the inner pipe, and a heat conduction cylinder structure is installed inside the inner pipe;

[0008] An outer pipe is sleeved outside the inner pipe. The end of the outer pipe is hermetically sleeved outside the inner pipe. A gap is reserved between the inner pipe and the outer pipe. The hot air pipe and the cold air pipe are communicated with the outer pipe. The hanger structure is wound around the outside of the outer pipe.

[0009] Preferably, a first thread protrusion is arranged inside the outer pipe.

[0010] Preferably, the inner pipe is composed of two semi-circular pipes. An installation chute is arranged inside the inner pipe. The heat conduction cylinder structure is clamped inside the chute. A second thread protrusion is arranged outside the inner pipe. The second thread protrusion and the first thread protrusion form a cooling channel.

[0011] Preferably, the heat conduction cylinder structure includes a heat conduction cylinder which is adapted to the sliding groove, and a heat conduction multi-connection plate is arranged inside the heat conduction cylinder.

[0012] Preferably, the outer wall of the heat conduction cylinder is in contact with the inner wall of the inner tube.

[0013] Preferably, the hanger structure includes an arc-shaped frame which is wound around the outside of the outer tube, and a plurality of lifting rods are arranged at the top of the arc-shaped frame.

[0014] Preferably, the air supply structure includes a plurality of air pumps, and a plurality of the air pumps are fixedly communicated with a connecting pipe, and the connecting pipe is fixedly communicated with the cold air pipe.

[0015] Compared with the prior art, the utility model has the following advantages and technical effects:

[0016] By connecting the sleeve air cooling structure to the main exhaust pipe, the utility model facilitates the disassembly and maintenance of the sleeve air cooling structure. One end of the sleeve air cooling structure is connected to the air supply structure through a cold air pipe for cooling the main exhaust pipe, which can prevent the main exhaust pipe from exploding due to excessive temperature. At the same time, the other end of the sleeve air cooling structure is connected to the air inlet of the aluminum melting furnace through a hot air pipe, and the hot air can be introduced into the aluminum melting furnace to blow air inside the aluminum melting furnace, improving the combustion effect inside the aluminum melting furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts:

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is an exploded view of the sleeve air cooling structure;

[0020] Reference numerals: 1, sleeve air cooling structure; 2, hanger structure; 3, main exhaust pipe; 4, hot air pipe; 5, cold air pipe; 6, air supply structure; 7, controller; 8, temperature sensor; 101, outer tube; 102, inner tube; 103, heat conduction cylinder structure; 1011, first thread protrusion; 1021, sliding groove; 1022, second thread protrusion; 1031, heat conduction cylinder; 1032, heat conduction multi-connection plate; 201, arc-shaped frame; 202, lifting rod; 601, air pump; 602, connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Refer to Figures 1 to 2 As shown, the present invention provides a flue gas cooling device for an aluminum melting workshop, including a plurality of sleeve air-cooling structures 1 sealed and connected to the main exhaust pipe 3. The main exhaust pipe 3 is connected to the corresponding aluminum melting furnace collecting pipe through a plurality of branch pipes. A temperature sensor 8 is arranged inside the sleeve air-cooling structure 1, and a hanger structure 2 is wound around the outside of the sleeve air-cooling structure 1. The top of the hanger structure 2 is connected to the workshop ceiling. One end of a hot air pipe 4 is fixedly connected to the air outlet end of the sleeve air-cooling structure 1, and the other end of the hot air pipe 4 is connected to the air inlet of the aluminum melting furnace;

[0024] The air inlet end of the sleeve air-cooling structure 1 is sealed and connected to the air outlet end of a cold air pipe 5. The air inlet end of the cold air pipe 5 is connected to an air supply structure 6. The air supply structure 6, the temperature sensor 8, and a controller 7 are electrically connected, and the controller 7 and the air supply structure 6 are placed on the ground.

[0025] In the present invention, by connecting the sleeve air-cooling structure 1 to the main exhaust pipe 3, it is convenient to disassemble and repair the sleeve air-cooling structure 1. One end of the sleeve air-cooling structure 1 is connected to the air supply structure 6 through the cold air pipe 5 for cooling the main exhaust pipe 3, which can prevent the main exhaust pipe 3 from exploding due to excessive temperature. At the same time, the other end of the sleeve air-cooling structure 1 is connected to the air inlet of the aluminum melting furnace through the hot air pipe 4, and the hot air with temperature can be introduced into the aluminum melting furnace to blow air inside the aluminum melting furnace, improving the combustion effect inside the aluminum melting furnace.

[0026] In a further optimized solution, the sleeve air-cooling structure 1 includes an inner pipe 102, the inner pipe 102 is connected to the main exhaust pipe 3 and has the same diameter, the temperature sensor 8 is arranged inside the inner pipe 102, and a heat conduction cylinder structure 103 is installed inside the inner pipe 102;

[0027] An outer pipe 101 is sleeved outside the inner pipe 102. The end of the outer pipe 101 is hermetically sleeved outside the inner pipe 102. A gap is reserved between the inner pipe 102 and the outer pipe 101. The hot air pipe 4 and the cold air pipe 5 are connected to the outer pipe 101, and the hanger structure 2 is wound around the outside of the outer pipe 101.

[0028] For a further optimized solution, a first thread protrusion 1011 is provided inside the outer tube 101.

[0029] The first thread protrusion 1011 functions as a flow guide to make the gas rotate, increasing the travel length and prolonging the residence time of the hot gas inside the outer tube 101.

[0030] For a further optimized solution, the inner tube 102 is composed of two semi-circular tubes. An installation chute 1021 is provided inside the inner tube 102, and the heat conduction cylinder structure 103 is clamped inside the chute 1021. A second thread protrusion 1022 is provided outside the inner tube 102, and the second thread protrusion 1022 and the first thread protrusion 1011 form a cooling channel.

[0031] The second thread protrusion 1022 functions as a flow guide and can increase the heat transfer area.

[0032] For a further optimized solution, the heat conduction cylinder structure 103 includes a heat conduction cylinder 1031, which is adapted to the chute 1021, and a heat conduction multi-connection plate 1032 is provided inside the heat conduction cylinder 1031.

[0033] The heat conduction multi-connection plate 1032 can conduct the hot gas in the main exhaust pipe 3 to the heat conduction cylinder 1031.

[0034] For a further optimized solution, the outer wall of the heat conduction cylinder 1031 is in contact with the inner wall of the inner tube 102.

[0035] Thermal conductive silica gel facilitates increasing the heat conduction effect between the heat conduction cylinder 1031 and the inner tube 102.

[0036] For a further optimized solution, the hanger structure 2 includes an arc-shaped frame 201, which is wound around the outside of the outer tube 101, and a plurality of lifting rods 202 are provided at the top of the arc-shaped frame 201.

[0037] For a further optimized solution, the air supply structure 6 includes a plurality of air pumps 601. The plurality of air pumps 601 are fixedly connected to a connecting pipe 602, and the connecting pipe 602 is fixedly connected to the cold air pipe 5.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0039] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A flue gas cooling device for an aluminum smelting workshop, characterized in that: It includes a number of sleeve air-cooling structures (1) hermetically connected to the main exhaust pipe (3). The main exhaust pipe (3) is connected to the collecting funnels of corresponding aluminum melting furnaces through a number of branch pipes. A temperature sensor (8) is arranged inside the sleeve air-cooling structure (1). A hanger structure (2) is wound around the outside of the sleeve air-cooling structure (1). The top end of the hanger structure (2) is connected to the workshop ceiling. One end of a hot air pipe (4) is fixedly connected to the air outlet end of the sleeve air-cooling structure (1), and the other end of the hot air pipe (4) is connected to the air inlet of the aluminum melting furnace; The air inlet end of the sleeve air-cooling structure (1) is hermetically connected to the air outlet end of a cold air pipe (5). The air inlet end of the cold air pipe (5) is connected to an air supply structure (6). The air supply structure (6), the temperature sensor (8) and a controller (7) are electrically connected. The controller (7) and the air supply structure (6) are placed on the ground.

2. The flue gas cooling device for an aluminum smelting workshop according to claim 1, wherein: The sleeve air-cooling structure (1) includes an inner pipe (102). The inner pipe (102) is connected to the main exhaust pipe (3) and has the same diameter. The temperature sensor (8) is arranged inside the inner pipe (102). A heat conduction cylinder structure (103) is installed inside the inner pipe (102); An outer pipe (101) is sleeved outside the inner pipe (102). The end of the outer pipe (101) is hermetically sleeved outside the inner pipe (102). A gap is reserved between the inner pipe (102) and the outer pipe (101). The hot air pipe (4) and the cold air pipe (5) are connected to the outer pipe (101). The hanger structure (2) is wound around the outside of the outer pipe (101).

3. The flue gas cooling device for an aluminum melting workshop according to claim 2, characterized in that: A first thread protrusion (1011) is arranged inside the outer pipe (101).

4. The flue gas cooling device for an aluminum smelting workshop according to claim 3, characterized in that: The inner pipe (102) is composed of two semi-circular pipes. An installation chute (1021) is arranged inside the inner pipe (102). The heat conduction cylinder structure (103) is clamped inside the chute (1021). A second thread protrusion (1022) is arranged outside the inner pipe (102). The second thread protrusion (1022) and the first thread protrusion (1011) form a cooling channel.

5. The flue gas cooling device for an aluminum smelting workshop according to claim 4, wherein: The heat conduction cylinder structure (103) includes a heat conduction cylinder (1031). The heat conduction cylinder (1031) is adapted to the chute (1021). A heat conduction multi-link plate (1032) is arranged inside the heat conduction cylinder (1031).

6. The flue gas cooling device for an aluminum melting workshop according to claim 5, characterized in that: The outer wall of the heat conduction cylinder (1031) is in contact with the inner wall of the inner pipe (102).

7. The flue gas cooling device for an aluminum smelting workshop according to claim 2, wherein: The hanger structure (2) includes an arc-shaped frame (201). The arc-shaped frame (201) is wound around the outside of the outer pipe (101). A plurality of lifting rods (202) are arranged at the top end of the arc-shaped frame (201).

8. The flue gas cooling device for an aluminum melting workshop according to claim 1, characterized in that: The air supply structure (6) includes a number of air pumps (601). A communication pipe (602) is fixedly connected to the number of air pumps (601). The communication pipe (602) is fixedly connected to the cold air pipe (5).

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