Exhaust hood for aluminum processing equipment

Abstract

The utility model discloses a smoke exhaust hood for aluminum processing equipment. The bottom of a smoke exhaust pipeline penetrates through an outer hood and is hermetically fixed and communicated with a smoke inlet pipe on the inner side of an inner hood; the inlet outer shell and the inlet inner shell are combined to form an inlet cover body, the middle outer shell and the middle inner shell are combined to form a middle cover body, and the outlet outer shell and the outlet inner shell are combined to form an outlet cover body; the inlet shell and the outlet shell can be rotationally and fixedly symmetrically connected to the two sides of the middle cover body; a plurality of inlet branch pipes connected to the inlet smoke inlet pipes are arranged at the bottom of the inlet smoke exhaust header pipe; a plurality of outlet branch pipes connected to the outlet smoke inlet pipes are arranged at the bottom of the outlet smoke exhaust header pipe; a plurality of middle exhaust branch pipes connected to the middle smoke inlet pipes are arranged at the bottom of the middle smoke exhaust header pipe; and each smoke inlet arranged between the outer cover and the inner cover is respectively communicated with the inlet, the outlet and the middle smoke inlet pipe which are closest to each other. According to the utility model, the power of the fan is greatly reduced, the energy consumption is low, and oil smoke does not condense on the seam of the inner cover and does not pollute the surface of the strip.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum processing equipment and relates to a fume exhaust hood for aluminum processing equipment. Background Art

[0002] At present, the exhaust hood for aluminum processing equipment is generally composed of an inner and outer hood, and the gap between the inner and outer hoods is the flue. Since the inner hood of the exhaust hood is split and discontinuous at the inlet and outlet, the airtightness is very poor. This structure causes the oil smoke rising from the rolling mill to condense at the discontinuous parts and finally drip onto the surface of the strip, thus affecting the quality of the strip. In addition, due to the very poor airtightness, the oil smoke is scattered and difficult to concentrate. In order to ensure the exhaust effect, the fan power can only be increased, resulting in increased energy consumption. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems existing in the prior art and to provide a fume hood for aluminum processing equipment which greatly reduces the fan power, has low energy consumption, and does not condense oil smoke on the joints of the inner cover and does not pollute the surface of the strip.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a new type of exhaust hood for aluminum processing equipment, including an exhaust duct, an outer cover and an inner cover whose two ends are fixed on two rolling mill arches; the outer cover is arranged on the outside of the inner cover, and the bottom surface of the inner cover is smooth; the exhaust duct is arranged on the top of the outer cover, and the bottom of the exhaust duct passes through the outer cover and is sealed and fixed with the smoke inlet pipe on the inner side of the inner cover and is connected; the outer cover includes an inlet outer shell, an intermediate outer shell and an outlet outer shell; the inner cover includes an inlet inner shell, an intermediate inner shell and an outlet inner shell; the inlet outer shell and the inlet inner shell are fixedly combined to form an inlet hood body, the intermediate outer shell and the intermediate inner shell are fixedly combined to form a middle hood body, and the outlet outer shell and the outlet inner shell are fixedly combined to form an outlet hood body; the inlet outer shell and the outlet outer shell are symmetrically connected to both sides of the middle hood body in a rotatable and fixed manner; the exhaust duct includes an inlet exhaust main pipe, an intermediate exhaust main pipe and an outlet exhaust main pipe; the inlet exhaust main pipe is fixed on the inlet hood body, and a plurality of inlet branch pipes are arranged at the bottom of the inlet exhaust main pipe, and the input ends of the inlet branch pipes are connected to the inlet smoke inlet pipes opened on each inlet smoke inlet pipe The smoke outlet Ⅰ of the housing is connected to each other, and the inlet smoke inlet pipes connected to each other are arranged at the lower end of the inlet housing; the outlet smoke exhaust main pipe is fixed to the outlet housing, and a plurality of outlet branch pipes are arranged at the bottom, and the input ends of the outlet branch pipes are connected to the smoke outlet Ⅱ opened on each outlet smoke inlet pipe, and the outlet smoke inlet pipes connected to each other are arranged at the lower end of the outlet housing; the middle smoke exhaust main pipe is fixed to the middle housing, and a plurality of middle exhaust branch pipes are arranged at the bottom, and the input ends of the middle exhaust branch pipes are connected to the smoke outlet Ⅲ opened on each middle smoke inlet pipe, The mutually connected intermediate smoke inlet pipes are arranged at the lower end of the middle cover body; a smoke inlet is arranged between the bottom surface of the outer cover and the bottom surface of the inner cover, a smoke inlet is arranged between the bottom surface of the intermediate inner shell and the bottom surface of the inlet inner shell and the bottom surface of the outlet inner shell respectively, and a smoke inlet is also arranged in the middle of the bottom surface of the intermediate inner shell; each smoke inlet is respectively connected with the smoke inlet of the nearest inlet smoke inlet pipe, outlet smoke inlet pipe and intermediate smoke inlet pipe; a lowest arc-shaped oil collecting trough is arranged on the outer edge of the bottom surface of the inner cover, and a plurality of oil discharge ports are arranged on the lowest bottom surface of the arc-shaped oil collecting trough.

[0005] Preferably, the inner cover is arranged in a herringbone shape, the inlet inner shell, the middle inner shell and the outlet inner shell are fixedly connected as a whole, and the inner wall of the inner cover is flat and seamless, and the inner cover is inclined toward both sides of the inlet and outlet.

[0006] Preferably, the specific structure in which the inlet shell and the outlet shell are both rotatably and fixedly connected symmetrically on both sides of the middle cover body is: one end of the inlet shell and the outlet shell is rotatably connected to one end of the middle cover body through a rotating shaft, and the other end is connected to the other end of the middle cover body through a buckle.

[0007] Preferably, the inlet smoke exhaust main pipe, the intermediate smoke exhaust main pipe and the outlet smoke exhaust main pipe are each provided with a fan, or the inlet smoke exhaust main pipe, the intermediate smoke exhaust main pipe and the outlet smoke exhaust main pipe are connected to the smoke exhaust main pipe, and the smoke exhaust main pipe is provided with a fan.

[0008] Compared with the prior art, the advantages of the present invention are:

[0009] The inlet, outlet and middle smoke inlet pipe are designed as an integrated type with the smoke exhaust pipe. The oil smoke directly enters the inlet, outlet and middle smoke inlet pipe through each smoke inlet and then is discharged. The airtightness is good. Under the same conditions, the same amount of oil smoke can be discharged using a fan with much lower power than the prior art, which greatly reduces energy consumption. The inner cover is arranged in a herringbone shape, and the inner wall is flat and seamless. The oil smoke no longer condenses at the seam of the inner cover, and no longer pollutes the surface of the strip. The produced strip has high quality. The amount of oil smoke entering the inlet, middle and outlet can be adjusted by adjusting the number of inlet, outlet and middle smoke inlet pipes, the number of inlet, outlet and middle outlet branch pipes and the number of smoke inlets, that is, less is set at the position with less oil smoke, and more is set at the position with less oil smoke. This can not only save the consumables of the utility model, but also further reduce the energy consumption of the utility model, and use a fan with lower power. The design of the inclined structure of the bottom surface of the inner cover and the arc-shaped oil collecting tank means that if condensed oil is formed during production, it will be discharged along the inclined surface and guided to the arc-shaped oil collecting tank for discharge. The inlet shell and the outlet shell are designed to be both rotatable and fixed. The inlet shell and the outlet shell can be rotated to the operating side respectively, which is convenient for the installation and maintenance of the whole equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 for Figure 1 A magnified view of part A;

[0012] Figure 3 The figure is a schematic diagram of the arrangement of the exhaust vents;

[0013] Figure 4 Schematic diagram of the installation structure of the inner shell;

[0014] Figure 5 Schematic diagram of the rotation of the inlet housing and the outlet housing.

[0015] Description of the numbers in the figure:

[0016] 1. Outer cover; 2. Inner cover; 3. Smoke exhaust duct; 101. Inlet outer shell; 102. Intermediate outer shell; 103. Outlet outer shell; 201. Inlet inner shell; 202. Intermediate inner shell; 203. Outlet inner shell; 301. Inlet smoke exhaust main pipe; 302. Intermediate smoke exhaust main pipe; 303. Outlet smoke exhaust main pipe; 304. Inlet branch pipe; 305. Outlet branch pipe; 306. Intermediate exhaust branch pipe; 104. Buckle; 307. Cylindrical oil collecting pipe; 308. Exhaust port; 309. Oil discharge port; 4. Rolling mill arch; 5. Rotating shaft. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model. Example

[0018] See also Figures 1 to 5, this embodiment includes a smoke exhaust duct, an outer cover 1 and an inner cover 2 whose two ends are fixed on two rolling mill arches 4. The outer cover 1 is arranged and fixed on the outside of the inner cover 2, and the bottom surface of the inner cover 2 is smooth. The smoke exhaust duct 3 is arranged on the top of the outer cover 1, and the bottom of the smoke exhaust duct 3 passes through the outer cover 1 and is sealed and fixed with the smoke inlet pipe on the inner side of the inner cover 2 and is connected. The outer cover 1 includes an inlet outer shell 101, an intermediate outer shell 102 and an outlet outer shell 103. The inner cover 2 includes an inlet inner shell 201, an intermediate inner shell 202 and an outlet inner shell 203. The inlet outer shell 101 and the inlet inner shell 201 are fixedly combined to form an inlet cover body, the intermediate outer shell 102 and the intermediate inner shell 202 are fixedly combined to form a middle cover body, and the outlet outer shell 103 and the outlet inner shell 203 are fixedly combined to form an outlet cover body. The inlet housing 101 and the outlet housing 102 are symmetrically connected to the two sides of the middle cover body, which can be rotated and fixed. The specific structure is: one end of the inlet housing 101 and the outlet housing 102 is rotatably connected to one end of the middle cover body through the rotating shaft 5, and the other end is connected to the other end of the middle cover body through the buckle 4. The smoke exhaust pipe 3 includes an inlet smoke exhaust main pipe 301, an intermediate smoke exhaust main pipe 302 and an outlet smoke exhaust main pipe 303; the inlet smoke exhaust main pipe 301 is fixed on the inlet cover body, and a plurality of inlet branch pipes 304 are arranged at the bottom of the inlet smoke exhaust main pipe 301, and the input end of the inlet branch pipe 304 is connected to the smoke outlet I opened on each inlet smoke inlet pipe 310, and each inlet smoke inlet pipe 310 connected to each other is arranged at the lower end of the inlet cover body. The bottom of the outlet smoke exhaust main pipe 303 is provided with a plurality of outlet branch pipes 305, the input end of the outlet branch pipes 305 is connected to the smoke outlet II opened on each outlet smoke inlet pipe 311, and each outlet smoke inlet pipe 311 connected to each other is arranged at the lower end of the outlet cover body. The bottom of the intermediate smoke exhaust main pipe 302 is provided with a plurality of intermediate exhaust branch pipes 306, the input end of the intermediate exhaust branch pipes 306 is connected to the smoke outlet III opened on each intermediate smoke inlet pipe 313, and each intermediate smoke inlet pipe 313 connected to each other is arranged at the lower end of the middle cover body. The bottom surfaces of the inlet inner shell 201, the intermediate inner shell 202 and the outlet inner shell 203 are arranged in a rectangular shape, and the bottom surfaces of the inlet inner shell 201, the intermediate inner shell 202 and the outlet inner shell 203 are arranged in a rectangular shape. A smoke inlet 308 is arranged between the bottom surface of the outer cover 1 and the bottom surface of the inner cover 2, and a smoke inlet 308 is arranged between the bottom surface of the intermediate inner shell 202 and the bottom surface of the inlet inner shell 201 and the bottom surface of the outlet inner shell 203, respectively, and a smoke inlet 308 is also arranged in the middle of the bottom surface of the intermediate inner shell 203. Each smoke inlet 308 is connected to the smoke inlets of the closest inlet smoke inlet pipe 310, the outlet smoke inlet pipe 311 and the intermediate smoke inlet pipe 312, respectively. A lowest arc-shaped oil collecting groove 307 is arranged on the outer edge of the bottom surface of the inner cover 2, and a plurality of oil discharge ports 309 are arranged on the lowest bottom surface of the arc-shaped oil collecting groove 307. Preferably, the inner cover 2 is arranged in a herringbone shape, the inlet inner shell 201, the intermediate inner shell 202 and the outlet inner shell 203 are fixedly connected as a whole, and the inner wall of the inner cover 22 is flat and seamless, and the inner cover 2 is inclined to both sides of the outlet and the inlet.The inlet exhaust main pipe 301, the middle exhaust main pipe 302 and the outlet exhaust main pipe 303 of this embodiment are connected to the exhaust main pipe, and a fan is arranged in the exhaust main pipe (the inlet exhaust main pipe 301, the middle exhaust main pipe 302 and the outlet exhaust main pipe 303 may also be provided with a fan as required). In this embodiment, a discharge pipe may be connected to the oil discharge port 309 to discharge the condensed oil droplets regularly through the oil discharge port 309 to reduce the blockage of the pipeline by oil and gas.

[0019] The utility model can adjust the amount of oil smoke entering the inlet, middle and outlet by adjusting the number of the inlet, outlet and middle smoke inlet pipes, adjusting the number of the inlet, outlet and middle outlet branch pipes and the number of smoke inlets, that is, less is set at the location with less oil smoke, and more is set at the location with less oil smoke. This can save the consumables of the utility model, and can further reduce the energy consumption of the utility model, and use a lower power fan.

[0020] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A smoke exhaust hood for aluminum processing equipment, comprising a smoke exhaust pipe, an outer cover and an inner cover whose two ends are fixed on two rolling mill arches; the outer cover is arranged outside the inner cover, and the smoke exhaust pipe is arranged on the top of the outer cover, characterized in that: The bottom of the smoke exhaust pipe passes through the outer cover and is sealed and fixed to the smoke inlet pipe inside the inner cover and is connected; the outer cover includes an inlet shell, an intermediate shell and an outlet shell; the bottom surface of the inner cover is smooth; The inner cover comprises an inlet inner shell, an intermediate inner shell and an outlet inner shell; the inlet outer shell and the inlet inner shell are fixedly combined into an inlet cover body, the intermediate outer shell and the intermediate inner shell are fixedly combined into a middle cover body, and the outlet outer shell and the outlet inner shell are fixedly combined into an outlet cover body; the inlet outer shell and the outlet outer shell are both rotatably and fixedly connected symmetrically on both sides of the middle cover body; the smoke exhaust duct comprises an inlet smoke exhaust main pipe, an intermediate smoke exhaust main pipe and an outlet smoke exhaust main pipe; the inlet smoke exhaust main pipe is fixed on the inlet cover body, and a plurality of inlet branch pipes are arranged at the bottom of the inlet smoke exhaust main pipe, the input end of the inlet branch pipe is connected to the smoke outlet I opened on each inlet smoke inlet pipe, and each inlet smoke inlet pipe connected to each other is arranged at the lower end of the inlet cover body; the outlet smoke exhaust main pipe is fixed on the outlet cover body, and a plurality of outlet branch pipes are arranged at the bottom, and the input end of the outlet branch pipe is connected to the smoke outlet I opened on each inlet smoke inlet pipe On the smoke outlet II opened on the smoke inlet pipe, the outlet smoke inlet pipes connected to each other are arranged at the lower end of the outlet cover body; the intermediate smoke exhaust main pipe is fixed on the intermediate cover body, and a plurality of intermediate exhaust branch pipes are arranged at the bottom, the input ends of the intermediate exhaust branch pipes are connected to the smoke outlet III opened on the intermediate smoke inlet pipes, and the intermediate smoke inlet pipes connected to each other are arranged at the lower end of the middle cover body; a smoke inlet is arranged between the bottom surface of the outer cover and the bottom surface of the inner cover, a smoke inlet is arranged between the bottom surface of the intermediate inner shell and the bottom surface of the inlet inner shell and the bottom surface of the outlet inner shell respectively, and a smoke inlet is also arranged in the middle of the bottom surface of the intermediate inner shell; each smoke inlet is connected to the smoke inlet of the nearest inlet smoke inlet pipe, outlet smoke inlet pipe and intermediate smoke inlet pipe respectively; a lowest arc-shaped oil collecting trough is arranged on the outer edge of the bottom surface of the inner cover, and a plurality of oil discharge ports are arranged on the lowest bottom surface of the arc-shaped oil collecting trough.

2. The fume hood for aluminum processing equipment according to claim 1, characterized in that: A fan is arranged in each of the inlet smoke exhaust main pipe, the middle smoke exhaust main pipe and the outlet smoke exhaust main pipe.

3. The fume hood for aluminum processing equipment according to claim 1, characterized in that: Alternatively, the inlet smoke exhaust main pipe, the intermediate smoke exhaust main pipe and the outlet smoke exhaust main pipe are connected to the smoke exhaust main pipe, and a fan is arranged in the smoke exhaust main pipe.

4. The fume hood for aluminum processing equipment according to claim 1, 2 or 3, characterized in that: The specific structure of the inlet shell and the outlet shell being rotatably and fixedly connected symmetrically on both sides of the middle cover body is that one end of the inlet shell and the outlet shell is rotatably connected to one end of the middle cover body through a rotating shaft, and the other end is connected to the other end of the middle cover body through a buckle.

5. The fume hood for aluminum processing equipment according to claim 4, characterized in that: The inner cover is arranged in a herringbone shape, the inlet inner shell, the middle inner shell and the outlet inner shell are fixedly connected as a whole, and the inner wall of the inner cover is flat and seamless, and the inner cover is inclined toward both sides of the inlet and outlet.

6. The fume hood for aluminum processing equipment according to claim 1, 2 or 3, characterized in that: The inner cover is arranged in a herringbone shape, the inlet inner shell, the middle inner shell and the outlet inner shell are fixedly connected as a whole, and the inner wall of the inner cover is flat and seamless, and the inner cover is inclined toward both sides of the inlet and outlet.

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