CN209900870U - An induced draft fan for exhaust gas treatment in electrolytic aluminum industry - Google Patents

Abstract

The utility model belongs to the technical field of machinery, in particular to an induced draft fan for electrolytic aluminum industrial exhaust gas treatment, comprising a body, a motor, a suction duct and an air outlet, the connecting seat is fixed on one side of the body, and the suction duct is fixed on one side of the body. The air duct is fixed on one side of the body, the motor is fixed on the body through the connecting seat, the fan is located inside the body, and the first dust-proof plate is passed through the first fixing bolts It is fixed on the inner wall of the air suction duct, and the second dustproof plate is fixed on the inner wall of the air outlet duct through the second fixing bolts; the particles and dust in the air are adsorbed and blocked to prevent dust from entering the air outlet. Inside the fan, thus avoiding the damage inside the induced draft fan, making the discharged gas more environmentally friendly, improving the service life, easy to clean, conducive to repeated use, reducing the vibration of the induced draft fan during use, thereby reducing the noise generated, avoiding the Generation of industrial noise.

Description

An induced draft fan for exhaust gas treatment in electrolytic aluminum industry

technical field

The utility model relates to the technical field of machinery, in particular to an induced draft fan for the treatment of tail gas in electrolytic aluminum industry.

Background technique

Induced fans are widely used in ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and induced draft in boilers and industrial furnaces, cooling and in air conditioning equipment and household appliances. Ventilation, drying and selection of grain, inflation and propulsion of wind tunnel air source and hovercraft, etc. The working principle of induced draft fan is basically the same as that of turbo compressor, but because the gas flow rate is low and the pressure change is not large, it is generally not necessary to consider The change of the specific volume of the gas means that the gas is treated as an incompressible fluid. The traditional induced draft fan has different structural forms according to the application and conditions. According to its working principle, it is basically divided into two types: axial flow and centrifugal type. The feature is to use the fan rotating blade to force the airflow to do directional movement - that is, the forced airflow flows in or out along the inlet and outlet channels set by the fan casing.

The Chinese patent with publication number CN101265922A discloses an induced draft fan. The patented technology can reduce the noise to below 20 decibels on the premise of ensuring that the induced draft power is large enough to avoid industrial noise pollution. However, when used in factories , can not filter the dust in the air, resulting in wear and tear of the internal parts of the induced draft fan, can not be used for a long time, reduce the service life. Therefore, those skilled in the art provide an induced draft fan for exhaust gas treatment of electrolytic aluminum industry to solve the problems raised in the above background technology.

Utility model content

The purpose of this utility model is to provide an induced draft fan for the treatment of tail gas in electrolytic aluminum industry, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the utility model provides the following technical solutions:

An induced draft fan for exhaust gas treatment of electrolytic aluminum industry, comprising a body, a motor, a suction duct and an air outlet, the body is provided with a connecting seat, the connecting seat is fixed on one side of the body, and the suction The cylinder is fixed on one side of the body, the motor is fixed on the body through the connecting seat, the motor is provided with an output shaft and a fan, the fan is located inside the body, and the fan is The output shaft is fixed on the output end of the motor, the air suction cylinder is provided with a first dustproof plate, a flange plate of the air duct and a first fixing bolt, and the first dustproof plate passes through the The first fixing bolt is fixed on the inner wall of the suction duct, the flange plate of the air receiving pipe is fixed on the output port of the suction duct, the air outlet duct is fixed on the bottom of the body, and the outlet The air duct is provided with a second dust-proof plate, an air outlet pipe flange and a second fixing bolt, and the second dust-proof plate is fixed on the inner wall of the air outlet through the second fixing bolt. The air outlet pipe flange is fixed on the input end of the air outlet duct, and the motor is electrically connected to an external power source.

As a further solution of the present invention, the suction duct and the fan are located on the same central axis.

As a further solution of the present invention, the first dustproof plate is provided with a first threaded hole matched with the first fixing bolt.

As a further solution of the present invention, the second dust-proof plate is provided with a second threaded hole matched with the second fixing bolt.

As a further solution of the present utility model: the air-receiving duct flange is provided with a fourth fixing bolt and an extension block, the extension block is fixed on the outer wall of the air-receiving duct flange, and the fourth The fixing bolts penetrate the air receiving pipe flange and the extension block to be fixed with the external air inlet pipe, and the extension block is provided with a third fixing bolt.

As a further solution of the present invention, the flange plate of the air receiving pipe and the extension block are provided with third threaded holes which are matched with the fourth fixing bolt and the third fixing bolt.

As a further solution of the present invention, the air suction duct and the air outlet duct are respectively provided with an air inlet and an air outlet matched with the fan.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model is provided with a first dust-proof plate and a second dust-proof plate, the first dust-proof plate is fixed on the inner wall of the suction duct by the first fixing bolt, and the second dust-proof plate is fixed by the second fixing bolt. On the inner wall of the air outlet, the first dust-proof plate is provided with a first threaded hole matched with the first fixing bolt, and the second dust-proof plate is provided with a second threaded hole matched with the second fixing bolt. When in use, the particles and dust in the air are adsorbed and blocked by the first dust-proof plate and the second dust-proof plate, so as to prevent dust from entering the inside of the induced draft fan, thereby avoiding damage to the inside of the induced draft fan, and making the discharged gas more environmentally friendly. The service life is improved. Through the cooperation of the first fixing bolt and the first threaded hole, the second fixing bolt and the second threaded hole, the first dustproof plate and the second dustproof plate are disassembled, which is convenient for cleaning and is conducive to repeated use. .

2. The utility model is provided with an air duct flange, the air duct flange is provided with a fourth fixing bolt and an extension block, the extension block is fixed on the outer wall of the air duct flange, and the fourth fixing bolt penetrates through the air duct flange. The flange plate of the air duct and the extension block are fixed to the external air inlet pipe. The flange plate of the air duct and the extension block are provided with a third threaded hole matched with the fourth fixing bolt and the third fixing bolt. In order to avoid the vibration of the induced draft fan during use, the fourth fixing bolt and the third fixing bolt and the third threaded hole cooperate to make the fixing of the induced draft fan and the air connection pipe more tightly, thereby reducing the noise generated and avoiding industrial noise. production.

Description of drawings

Fig. 1 is the structural representation of a kind of induced draft fan for electrolytic aluminum industrial tail gas treatment;

Fig. 2 is a kind of structural representation of the front view of the induced draft fan for the exhaust gas treatment of electrolytic aluminum industry;

Fig. 3 is a kind of structural representation of the body in the induced draft fan for electrolytic aluminum industrial exhaust gas treatment;

FIG. 4 is a schematic structural diagram of a flange plate for connecting an air duct in an induced draft fan for the treatment of exhaust gas in an electrolytic aluminum industry.

In the figure: 1. Body; 11. Connection seat; 2. Motor; 21. Output shaft; 22. Fan; 3. Suction duct; 301. Third threaded hole; Threaded hole; 32. Flange plate for connecting air pipe; 321, fourth fixing bolt; 322, extension block; 3221, third fixing bolt; 33, first fixing bolt; 34, air inlet; 4, air outlet; 41. The second dustproof plate; 411, the second threaded hole; 42, the flange plate of the air outlet; 43, the second fixing bolt; 44, the air outlet.

Detailed ways

Please refer to FIGS. 1 to 4. In an embodiment of the present invention, an induced draft fan for electrolytic aluminum industrial exhaust gas treatment includes a body 1, a motor 2, a suction duct 3 and an air outlet 4. The body 1 is provided with a connecting seat 11 , the connecting seat 11 is fixed on one side of the body 1, the suction cylinder 3 is fixed on one side of the body 1, the motor 2 is fixed on the body 1 through the connecting seat 11, the motor 2 is provided with an output shaft 21 and a fan 22, the fan 22 It is located inside the body 1, and the fan 22 is fixed on the output end of the motor 2 through the output shaft 21. The air suction tube 3 is provided with a first dustproof plate 31, a flange plate 32 of the air duct and a first fixing bolt 33. A dust-proof plate 31 is fixed on the inner wall of the suction duct 3 through the first fixing bolts 33, the air-connecting pipe flange 32 is fixed on the output port of the suction duct 3, and the air outlet duct 4 is fixed at the bottom of the body 1. The air duct 4 is provided with a second dustproof plate 41, an air outlet pipe flange 42 and a second fixing bolt 43. The second dustproof plate 41 is fixed on the inner wall of the air outlet duct 4 through the second fixing bolt 43, and the outlet The air duct flange 42 is fixed on the input end of the air outlet 4, and the motor 2 is electrically connected to an external power source.

In this embodiment, when the motor 2 is working, the fan 22 rotates through the output shaft 21 to force the airflow to make a directional movement, so that the airflow enters from the air inlet 34. The model of the motor 2 is YS7124.

In FIG. 1 : the connecting seat 11 is fixed on one side of the body 1, the suction cylinder 3 is fixed on one side of the body 1, the motor 2 is fixed on the body 1 through the connecting seat 11, the fan 22 is located inside the body 1, and the fan 22 is fixed on the output end of the motor 2 through the output shaft 21. When the motor 2 is working, the fan 22 rotates through the output shaft 21 to force the airflow to make a directional movement, so that the airflow enters from the air inlet 34, and the first dust plate 31 passes through the first The fixing bolts 33 are fixed on the inner wall of the suction duct 3, and the particles and dust in the air are adsorbed and blocked by the first dustproof plate 31, so as to prevent dust from entering the interior of the induced draft fan, thereby avoiding damage to the interior of the induced draft fan. The blue plate 32 is fixed on the output port of the air suction duct 3, which is convenient to be fixed with the external air connection pipe. The bottom of the body 1 is fixed with the air outlet duct 4, and the second dustproof plate 41 is fixed on the air outlet 4 through the second fixing bolts 43. On the inner wall of the air outlet, it is filtered again by the second dustproof plate 41, so that the gas discharged from the air outlet 44 is more environmentally friendly and has a purification effect.

In FIG. 2 : the connecting seat 11 is fixed on one side of the body 1, the suction duct 3 is fixed on one side of the body 1, the motor 2 is fixed on the body 1 through the connecting seat 11, the fan 22 is located inside the body 1, and the fan 22 is fixed on the output end of the motor 2 through the output shaft 21. When the motor 2 is working, the fan 22 rotates through the output shaft 21 to force the airflow to make a directional movement, so that the airflow enters from the air inlet 34, and the first dust plate 31 passes through the first The fixing bolts 33 are fixed on the inner wall of the suction duct 3, and the particles and dust in the air are adsorbed and blocked by the first dustproof plate 31, so as to prevent dust from entering the interior of the induced draft fan, thereby avoiding damage to the interior of the induced draft fan. The blue plate 32 is fixed on the output port of the air suction duct 3, which is convenient to be fixed with the external air connection pipe. The bottom of the body 1 is fixed with the air outlet duct 4, and the second dustproof plate 41 is fixed on the air outlet 4 through the second fixing bolts 43. On the inner wall of the air outlet, it is filtered again through the second dustproof plate 41, so that the discharged gas is more environmentally friendly and has a purification effect. The air outlet duct flange 42 is fixed on the input end of the air outlet duct 4. A first threaded hole 311 matched with the first fixing bolt 33 is provided, and the first dustproof plate 31 can be disassembled through the cooperation of the first fixing bolt 33 and the first threaded hole 311, which is convenient for cleaning and repeated use.

In FIG. 3 : the second dust-proof plate 41 is provided with a second threaded hole 411 which is matched with the second fixing bolt 43 . Through the cooperation of the second fixing bolt 43 with the second threaded hole 411 41 can be disassembled for easy cleaning and repeated use.

In Fig. 4: there are fourth fixing bolts 321 and extension blocks 322 on the air receiving pipe flange 32, the extension block 322 is fixed on the outer wall of the air receiving pipe flange 32, and the fourth fixing bolts 321 penetrate through the air receiving pipe method The flange plate 32 and the extension block 322 are fixed with the external air inlet pipe, and the third threaded hole 301 which is matched with the fourth fixing bolt 321 and the third fixing bolt 3221 is opened on the flange plate 32 and the extension block 322 of the air receiving pipe. The extension block 322 reduces the vibration of the induced draft fan during use, and through the cooperation of the fourth fixing bolt 321 and the third fixing bolt 3221 with the third threaded hole 301, the fixing of the induced draft fan and the air receiving pipe is more tightly, thereby reducing the occurrence of noise, to avoid the generation of industrial noise.

The working principle of the present invention is as follows: when the present invention is in use, after the power is turned on, since the motor 2 is fixed on the body 1 through the connecting seat 11 , the fan 22 is located inside the body 1 , and the fan 22 is fixed on the motor 2 through the output shaft 21 . When the motor 2 is working, the fan 22 rotates through the output shaft 21, forcing the airflow to make a directional movement, so that the airflow enters from the air inlet 34, and the first dustproof plate 31 is fixed on the suction duct 3 by the first fixing bolt 33. On the inner wall of the fan, the particles and dust in the air are adsorbed and blocked by the first dustproof plate 31 to prevent dust from entering the interior of the induced draft fan, thereby avoiding damage to the interior of the induced draft fan. The output port is easy to be fixed with the external air connection pipe, and is filtered again through the second dustproof plate 41, so that the discharged gas is more environmentally friendly and has a purification effect. The air outlet pipe flange 42 is fixed on the input end of the air outlet duct 4. , through the cooperation between the first fixing bolt 33 and the first threaded hole 311 and the second fixing bolt 43 and the second threaded hole 411, the first dustproof plate 31 and the second dustproof plate 41 are disassembled, which is convenient for cleaning and beneficial to After repeated use, the vibration of the induced draft fan during use is reduced by the extension block 322, and the fourth fixing bolt 321 and the third fixing bolt 3221 and the third threaded hole 301 cooperate to make the fixing of the induced draft fan and the air connection pipe more tightly. , thereby reducing the noise generated and avoiding the generation of industrial noise.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The technical solution of the utility model and its utility model concept are equivalently replaced or changed, and should be covered within the protection scope of the present utility model.

Claims (7)

1. An induced draft fan for electrolytic aluminum industry exhaust gas treatment, comprising a body (1), a motor (2), a suction duct (3) and an air outlet (4), characterized in that the body (1) is provided with a There is a connecting seat (11), the connecting seat (11) is fixed on one side of the body (1), the suction duct (3) is fixed on one side of the body (1), and the motor ( 2) is fixed on the body (1) through the connecting seat (11), the motor (2) is provided with an output shaft (21) and a fan (22), and the fan (22) is located in the body (1), and the fan (22) is fixed on the output end of the motor (2) through the output shaft (21), and a first dust-proof plate ( 31), the air duct flange (32) and the first fixing bolts (33), the first dustproof plate (31) is fixed on the suction duct (3) by the first fixing bolts (33) ), the air receiving pipe flange (32) is fixed on the output port of the suction duct (3), and the air outlet duct (4) is fixed on the bottom of the body (1), so The air outlet duct (4) is provided with a second dustproof plate (41), an air outlet duct flange (42) and a second fixing bolt (43), and the second dustproof plate (41) passes through the The second fixing bolt (43) is fixed on the inner wall of the air outlet duct (4), the air outlet duct flange (42) is fixed on the input end of the air outlet duct (4), and the motor ( 2) Electrical connection with external power supply. 2 . The induced draft fan for exhaust gas treatment of electrolytic aluminum industry according to claim 1 , wherein the suction duct ( 3 ) and the fan ( 22 ) are located on the same central axis. 3 . 3 . The induced draft fan for exhaust gas treatment in electrolytic aluminum industry according to claim 1 , wherein the first dustproof plate ( 31 ) is provided with a fan that matches the first fixing bolt ( 33 ). 4 . The first threaded hole (311). 4 . The induced draft fan for exhaust gas treatment in electrolytic aluminum industry according to claim 1 , wherein the second dust-proof plate ( 41 ) is provided with a fan that matches the second fixing bolt ( 43 ). 5 . The second threaded hole (411). 5. The induced draft fan for exhaust gas treatment in electrolytic aluminum industry according to claim 1, characterized in that, a fourth fixing bolt (321) and an extension block (322) are provided on the flange plate (32) of the air connection pipe ), the extension block (322) is fixed on the outer wall of the air receiving pipe flange (32), and the fourth fixing bolt (321) penetrates the air receiving pipe flange (32) and the The extension block (322) is fixed with the external air inlet pipe, and the extension block (322) is provided with a third fixing bolt (3221). 6. The induced draft fan for exhaust gas treatment of electrolytic aluminum industry according to claim 5, characterized in that, said air connecting pipe flange (32) and said extension block (322) are provided with said first Four fixing bolts (321) are matched with the third threaded holes (301) of the third fixing bolts (3221). 7. The induced draft fan for exhaust gas treatment of electrolytic aluminum industry according to claim 1, characterized in that, the suction duct (3) and the air outlet duct (4) are respectively provided with the fan ( 22) The matching air inlet (34) and air outlet (44).

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