阅读说明：本技术 一种耐腐蚀的废酸尾气离心风机的制作方法 (Manufacturing method of corrosion-resistant waste acid and tail gas centrifugal fan ) 是由 纪光辉 于 2021-08-04 设计创作，主要内容包括：本发明公开了种耐腐蚀的废酸尾气离心风机的制作方法,包括：风机,一侧安装有电机,且电机安装在安装板的一侧,所述安装板内部连接有固定栓,所述固定栓一端螺纹连接有风机,钛板,一侧连接有安装板,所述钛板与风机之间相互铆合,且钛板一侧固定连接有固定块。该耐腐蚀的废酸尾气离心风机的制作方法,将转柱安装在电机的一端,通过定位块与固定块之间的螺纹连接将钛板固定在安装板的一侧,之后将防护块与转柱之间进行螺纹连接,将钛板和转柱的连接处密封,通过固定栓将安装板固定在风机的一侧,通过固定栓将安装板固定在风机的一侧,从而使得风机在使用时酸气不会进入风机的内部,从而导致风机腐蚀损坏。(The invention discloses a manufacturing method of a corrosion-resistant waste acid tail gas centrifugal fan, which comprises the following steps: the motor is installed to fan, one side, and the motor is installed in one side of mounting panel, mounting panel internal connection has the gim peg, gim peg one end threaded connection has the fan, and titanium board, one side is connected with the mounting panel, mutual riveting between titanium board and the fan, and titanium board one side fixedly connected with fixed block. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan comprises the steps that a rotary column is installed at one end of a motor, a titanium plate is fixed to one side of a mounting plate through threaded connection between a positioning block and a fixing block, then threaded connection is conducted between a protection block and the rotary column, the connection position of the titanium plate and the rotary column is sealed, the mounting plate is fixed to one side of the fan through a fixing bolt, the mounting plate is fixed to one side of the fan through the fixing bolt, and therefore acid gas cannot enter the fan when the fan is used, and the fan is corroded and damaged.)

1. A manufacturing method of a corrosion-resistant waste acid tail gas centrifugal fan is characterized by comprising the following steps:

the fan (1) is provided with a motor (2) on one side, the motor (2) is arranged on one side of the mounting plate (3), the mounting plate (3) is internally connected with a fixing bolt (4), and one end of the fixing bolt (4) is in threaded connection with the fan (1);

the fan comprises a titanium plate (5), wherein one side of the titanium plate (5) is connected with a mounting plate (3), the titanium plate (5) and the fan (1) are mutually riveted, one side of the titanium plate (5) is fixedly connected with a fixing block (6), a positioning block (7) is connected inside the fixing block (6), the surface of the fixing block (6) vertically penetrates through the inside of the mounting plate (3), the surface of the positioning block (7) is in threaded connection with the fixing block (6), and one side of the positioning block (7) is connected with the mounting plate (3);

the rotary column (8) is installed at one end of the motor (2), the surface of the rotary column (8) is connected with a protection block (9) in a penetrating mode, the surface of the rotary column (8) vertically penetrates through the interior of the installation plate (3), a threaded connection structure is arranged between the protection block (9) and the rotary column (8), the thread rotating direction of the protection block (9) is the same as the rotating direction of the motor (2), and the installation plate (3), the rotary column (8) and the protection block (9) are made of titanium.

2. The manufacturing method of the corrosion-resistant waste acid and tail gas centrifugal fan according to claim 1, wherein one end of the rotating column (8) is vertically and fixedly connected with a butt-joint block (10), a spring (11) is connected inside the butt-joint block (10), one end of the spring (11) is fixedly connected with a fixture block (12), and the fixture block (12) is of a telescopic connection structure inside the butt-joint block (10).

3. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan according to claim 2, wherein a riveting connection structure is arranged between the surface of the butt joint block (10) and the connecting block (13), one end, far away from the butt joint block (10), of the connecting block (13) is provided with a fan blade (14), and the connecting block (13) forms an elastic clamping connection structure between the elastic action of the spring (11) and the clamping block (12).

4. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan according to claim 1, wherein the surface of the fan (1) is movably connected with a connecting shaft (15), the surface of the connecting shaft (15) is movably connected with a left support (16), one end, far away from the connecting shaft (15), of the left support (16) is fixedly connected with a sliding block (17), and two connecting shafts (15) and two left supports (16) are arranged on one side of the fan (1).

5. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan according to claim 4, wherein a sliding groove (18) is movably connected to the surface of the sliding block (17), the sliding groove (18) is formed in the base (19), the sliding block (17) is in a sliding connection structure with the base (19) through the sliding groove (18), and the sliding block (17) is mainly regarded as a circular structure.

6. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan according to claim 4, wherein a first adjusting shaft (20) is movably connected to the surface of the left support (16), a left adjusting rod (21) is movably connected to the surface of the first adjusting shaft (20), an adjusting block (22) is connected to one end, away from the first adjusting shaft (20), of the left adjusting rod (21) through threads, a right adjusting rod (23) is connected to one end, away from the left adjusting rod (21), of the adjusting block (22) through threads, opposite threads are arranged on the surfaces of the right adjusting rod (23) and the left adjusting rod (21), and one end of the right adjusting rod (23) is rotatably connected with the left support (16) through a second adjusting shaft (24).

7. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan according to claim 1, wherein one end of the fan (1) far away from the left support (16) is rotatably connected with a right support (25), one end of the right support (25) is movably connected with a sliding block (26), the surface of the sliding block (26) is movably connected with a base (19), and a sliding connection structure is arranged between the sliding block (26) and the base (19).

8. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan according to claim 4, wherein the air outlet (27) is installed on the surface of the fan (1), a rotating shaft (28) is movably connected inside the air outlet (27), a fixing lug (29) is movably connected on the surface of the rotating shaft (28), a clamping cover (30) is fixedly connected to the top of the fixing lug (29), and a rotary connecting structure is formed between the fixing lug (29) and the air outlet (27) through the rotating shaft (28).

9. The manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan according to claim 8, wherein a roller (31) is embedded on the surface of the clamping cover (30), the roller (31) is of a cylindrical structure, a fixed shaft (32) penetrates through the inside of the roller (31), a support frame (33) is movably connected to the surface of the fixed shaft (32), and an air outlet (27) is fixedly connected to one end of the support frame (33).

10. The method for manufacturing a corrosion-resistant waste acid tail gas centrifugal fan according to any one of claims 1 to 9, wherein the method comprises the following steps:

s1: putting the titanium plate (5), the rotary column (8) and the protective block (9) into corresponding dies, and manufacturing the titanium plate (5), the rotary column (8) and the protective block (9) with required sizes;

s2: the rotary column (8) is arranged at one end of the motor (2);

s3: a fixed block (6) fixed on one side of the titanium plate (5) is riveted with the mounting plate (3), and the titanium plate (5) is fixed on one side of the mounting plate (3) through the threaded connection between the positioning block (7) and the fixed block (6);

s4: finally, the protective block (9) is in threaded connection with the rotary column (8), and the connection part of the titanium plate (5) and the rotary column (8) is sealed;

s5: when sour gas gets into inside fan (1), sour gas can not get into inside motor (2), leads to motor (2) to damage, and then realizes the corrosion-resistant of motor (2).

Technical Field

The invention relates to the technical field of manufacturing methods of centrifugal fans, in particular to a manufacturing method of a corrosion-resistant waste acid tail gas centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial kilns.

The patent CN201020219011.6 discloses a novel centrifugal fan, which comprises a volute, wherein the left side, the right side and the front end of the volute are respectively provided with an air inlet and an air outlet, the air inlets on the left side and the right side of the volute are respectively fixed with a left bracket and a right bracket, a support rod is arranged between the left bracket and the right bracket, a motor is sleeved on the support rod, the motor is arranged in the middle of an inner cavity of the volute, a centrifugal wind wheel is also arranged in the inner cavity of the volute, the middle of the centrifugal wind wheel is provided with a base, and the base is sleeved on the outer surface of the motor and fixed with the outer surface of the motor; the invention has reasonable structure, good use effect and good silencing effect, thereby being widely applied to the manufacture of the centrifugal fan.

This prior art solution also presents the following problems when in use:

1. the waste acid tail gas of the centrifugal fan is prevented from being protected by coating a special material on the surface of the device so as to realize the treatment of the waste acid tail gas, but the inside of the device and the waste acid tail gas which is easy to enter cause the damage of a motor inside the device and the whole damage of the device;

2. when the device is used, the device cannot be finely adjusted, so that the device is very inconvenient to butt joint with a corresponding pipeline;

3. when the device is used, the top of the device is not protected, so that foreign matters can easily enter the device, and the device is damaged;

improvements are needed to address the above issues to meet market demands.

Disclosure of Invention

The invention aims to provide a manufacturing method of a corrosion-resistant waste acid tail gas centrifugal fan, and aims to solve the problems that the surface of a device is coated with a special material to realize the treatment of waste acid tail gas through the prevention of waste acid tail gas protection of the centrifugal fan in the background technology, but the inside of the device and the waste acid tail gas are easy to enter, so that a motor in the device is damaged, and the whole device is damaged.

In order to achieve the purpose, the invention provides the following technical scheme: a manufacturing method of a corrosion-resistant waste acid tail gas centrifugal fan comprises the following steps:

the fan is installed on one side of the fan, the motor is installed on one side of the installation plate, a fixing bolt is connected inside the installation plate, and one end of the fixing bolt is in threaded connection with the fan;

one side of the titanium plate is connected with an installation plate, the titanium plate and the fan are mutually riveted, one side of the titanium plate is fixedly connected with a fixed block, the inside of the fixed block is connected with a positioning block, the surface of the fixed block vertically penetrates through the inside of the installation plate, the surface of the positioning block is in threaded connection with the fixed block, and one side of the positioning block is connected with the installation plate;

the rotary column is installed at the one end of motor, rotary column surface through connection has the protection piece, and inside the mounting panel was run through perpendicularly to the rotary column surface, be threaded connection structure between protection piece and the rotary column, and protection piece screw thread direction of rotation is the same with the motor direction of rotation, mounting panel, rotary column and protection piece are the titanium material.

Preferably, the perpendicular fixedly connected with butt joint piece of rotary column one end, the internal connection of butt joint piece has the spring, the one end fixedly connected with fixture block of spring, the fixture block is flexible connection structure in the inside of butt joint piece, and through above-mentioned structure, the fixture block is in the flexible activity of stretching out and drawing back in the inside of butt joint piece under the elastic effect of spring.

Preferably, be riveting connection structure between butt joint piece surface and the connecting block, and the connecting block is kept away from the one end of butt joint piece and is installed the flabellum, the connecting block constitutes elasticity block connection structure between the elastic effect of spring and fixture block, and through above-mentioned structure, the fixture block is fixed with the flabellum block.

Preferably, fan surface swing joint has the connecting axle, and connecting axle surface swing joint has the left socle, the one end fixedly connected with slider of the connecting axle of keeping away from of left socle, connecting axle and left socle are provided with two in fan one side, and through above-mentioned structure, the left socle passes through the connecting axle and rotates on the fan.

Preferably, the surface of the sliding block is movably connected with a sliding chute, the sliding chute is arranged in the base, the sliding block is in a sliding connection structure with the base through the sliding chute, the sliding block is mainly regarded as a circular structure, and the sliding block slides on the base through the sliding chute through the structure.

Preferably, the surperficial swing joint of left socle has first regulating spindle, the surperficial swing joint of first regulating spindle has the left regulation pole, the one end threaded connection who keeps away from first regulating spindle of left side regulation pole has the regulating block, the one end threaded connection who keeps away from left regulation pole of regulating block has the right regulation pole, right side regulation pole and left regulation pole surface are provided with opposite screw thread, and just right side regulation pole one end forms to rotate through between second regulating spindle and the left socle and is connected, and through above-mentioned structure, the regulating block can drive left side regulation pole and right side regulation pole and remove.

Preferably, the one end that the left socle was kept away from to the fan rotates and is connected with the right branch frame, the one end swing joint of right branch frame has the sliding block, the surperficial swing joint of sliding block has the base, and is the sliding connection structure between sliding block and the base, and through above-mentioned structure, the right branch frame passes through the sliding block and slides on the base.

Preferably, fan surface mounting has the gas outlet, the inside swing joint of gas outlet has the axis of rotation, the surperficial swing joint of axis of rotation has fixed ear, the top fixedly connected with card lid of fixed ear, and fixed ear form rotation connection structure through between axis of rotation and the gas outlet, and through above-mentioned structure, the axis of rotation makes the card lid rotate.

Preferably, the surperficial gomphosis of card lid has the running roller, the running roller is cylindric structure, and the inside through connection of running roller has the fixed axle, fixed axle surface swing joint has the support frame, the one end fixedly connected with gas outlet of support frame, through above-mentioned structure, the running roller will be blocked the lid block and fix.

Preferably;

s1: putting the titanium plate, the rotary column and the protection block into corresponding dies, and manufacturing the titanium plate, the rotary column and the protection block with required sizes;

s2: mounting the rotary column at one end of the motor;

s3: the fixing block fixed on one side of the titanium plate and the mounting plate are mutually riveted and fixed, and the titanium plate is fixed on one side of the mounting plate through threaded connection between the positioning block and the fixing block;

s4: finally, the protective block is in threaded connection with the rotary column, and the connection part of the titanium plate and the rotary column is sealed;

s5: when sour gas gets into inside the fan, sour gas can not get into inside the motor, leads to the motor to damage, and then realizes the corrosion-resistant of motor, through above-mentioned structure, carries out anti-corrosion to the motor.

Compared with the prior art, the invention has the beneficial effects that: the manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan is provided with the titanium plate, the rotary column and the protection block, and the corrosion-resistant treatment of the motor is realized through direct assembly of the titanium plate, the rotary column and the protection block, so that the service life of the motor is prolonged, and the service life of the fan is prolonged.

1. Install the one end at the motor with the rotary column, later with fixed block and the mounting panel of titanium plate one side fixed between riveting each other fixed, and fix the one side at the mounting panel with the titanium plate through the threaded connection between locating piece and the fixed block, later with carrying out threaded connection between protection piece and the rotary column, it is sealed with the junction of titanium plate and rotary column, fix the one side at the fan with the mounting panel through the gim peg, thereby make the fan when using sour gas can not get into the inside of fan, thereby lead to fan corrosion damage.

2. Two fixture blocks are extruded, the spring is extruded by the two fixture blocks, the spring is deformed until the surface of the fixture block is separated from the rotary column, and then the fan blade is taken out from one end of the rotary column, so that the fan blade can be more conveniently detached, replaced and cleaned by workers.

3. Rotate the regulating block with the hand, threaded connection between regulating block and left regulation pole and the right regulation pole makes left regulation pole and right regulation pole be close to each other or keep away from to make left regulation pole and right regulation pole drive two left socle and be close to each other or keep away from, the right branch frame passes through the sliding block in the inside activity of base simultaneously, thereby the height of fan that can be more convenient, make through carrying out the micro-adjustment to the fan, so that the fan can be more convenient dock with the device.

4. The fixing lug fixedly connected with the bottom of the clamping cover is rotated through the rotating shaft, so that the clamping cover is clamped between one end surface of the clamping cover and the roller wheel, the clamping cover protects the top of the air outlet, the air outlet is used, foreign matters such as dust enter the air outlet, and the inside of the fan is damaged.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of a cross-sectional structure of a blower according to the present invention;

FIG. 3 is a schematic view of the connection structure of the air outlet and the card cover of the present invention;

FIG. 4 is a schematic view of the connection structure of the fan blade and the motor of the present invention;

FIG. 5 is an enlarged schematic view of the structure of the present invention A.

In the figure: 1. a fan; 2. a motor; 3. mounting a plate; 4. a fixing bolt; 5. a titanium plate; 6. a fixed block; 7. positioning blocks; 8. turning the column; 9. a protection block; 10. a butt joint block; 11. a spring; 12. a clamping block; 13. connecting blocks; 14. a fan blade; 15. a connecting shaft; 16. a left bracket; 17. a slider; 18. a chute; 19. a base; 20. a first adjustment shaft; 21. a left adjusting lever; 22. an adjusting block; 23. a right adjusting rod; 24. a second adjustment shaft; 25. a right bracket; 26. a slider; 27. an air outlet; 28. a rotating shaft; 29. fixing the ear; 30. a cover is clamped; 31. a roller; 32. a fixed shaft; 33. a support frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a manufacturing method of a corrosion-resistant waste acid tail gas centrifugal fan comprises the following steps:

the fan 1 is provided with a motor 2 on one side, the motor 2 is arranged on one side of a mounting plate 3, the mounting plate 3 is internally connected with a fixing bolt 4, one end of the fixing bolt 4 is in threaded connection with the fan 1, a titanium plate 5 is connected with the mounting plate 3 on one side, the titanium plate 5 and the fan 1 are mutually riveted, one side of the titanium plate 5 is fixedly connected with a fixing block 6, the fixing block 6 is internally connected with a positioning block 7, the surface of the fixing block 6 vertically penetrates through the mounting plate 3, the surface of the positioning block 7 is in threaded connection with the fixing block 6, one side of the positioning block 7 is connected with the mounting plate 3, a rotary column 8 is arranged at one end of the motor 2, the surface of the rotary column 8 is in through connection with a protective block 9, the surface of the rotary column 8 vertically penetrates through the mounting plate 3, a threaded connection structure is arranged between the protective block 9 and the rotary column 8, and the thread rotating direction of the protective block 9 is the same as the rotating direction of the motor 2, mounting panel 3, rotary column 8 and protection piece 9 are titanium material, install rotary column 8 in the one end of motor 2, later with fixed block 6 and the mounting panel 3 between fixed 5 one side of titanium board riveting fixed each other, and fix the one side at mounting panel 3 with titanium board 5 through the threaded connection between locating piece 7 and the fixed block 6, later with carrying out threaded connection between protection piece 9 and the rotary column 8, it is sealed with the junction of titanium board 5 and rotary column 8, fix mounting panel 3 in one side of fan 1 through gim peg 4, thereby make fan 1 inside that sour gas can not get into fan 1 when using, thereby lead to fan 1 corrosion damage.

The perpendicular fixedly connected with butt joint piece 10 of 8 one ends of rotary columns, the internal connection of butt joint piece 10 has spring 11, the one end fixedly connected with fixture block 12 of spring 11, fixture block 12 is flexible connection structure in butt joint piece 10's inside, is riveting connection structure between butt joint piece 10 surface and connecting block 13, and connecting block 13 keeps away from the one end of butt joint piece 10 and installs flabellum 14, connecting block 13 constitutes elasticity block connection structure between the elastic effect of spring 11 and fixture block 12, extrudes two fixture blocks 12, and two fixture blocks 12 extrusion springs 11 for spring 11 takes place to deform, until the surface of fixture block 12 and mutual separation between the rotary column 8, later takes out flabellum 14 from the one end of rotary column 8, thereby makes that the staff can be more convenient dismantle change and clear up flabellum 14.

The surface of the fan 1 is movably connected with a connecting shaft 15, the surface of the connecting shaft 15 is movably connected with a left support 16, one end of the left support 16, which is far away from the connecting shaft 15, is fixedly connected with a sliding block 17, the connecting shaft 15 and the left support 16 are arranged on one side of the fan 1, the surface of the sliding block 17 is movably connected with a sliding groove 18, the sliding groove 18 is arranged inside a base 19, the sliding block 17 is in a sliding connection structure through the sliding groove 18 and the base 19, the main structure of the sliding block 17 is regarded as a circular structure, the surface of the left support 16 is movably connected with a first adjusting shaft 20, the surface of the first adjusting shaft 20 is movably connected with a left adjusting rod 21, one end of the left adjusting rod 21, which is far away from the first adjusting shaft 20, is in threaded connection with an adjusting block 22, one end of the adjusting block 22, which is far away from the left adjusting rod 21, is in threaded connection with a right adjusting rod 23, the surfaces of the right adjusting rod 23 and the left adjusting rod 21 are provided with opposite threads, one end of the right adjusting rod 23 is rotationally connected with the left bracket 16 through a second adjusting shaft 24, one end of the fan 1 far away from the left bracket 16 is rotationally connected with a right bracket 25, one end of the right bracket 25 is movably connected with a sliding block 26, the surface of the sliding block 26 is movably connected with a base 19, and the sliding connection structure is arranged between the sliding block 26 and the base 19, the adjusting block 22 is rotated by hand, the adjusting block 22 is connected with the left adjusting rod 21 and the right adjusting rod 23 by screw threads, so that the left adjusting rod 21 and the right adjusting rod 23 are close to or far away from each other, so that the left adjusting rod 21 and the right adjusting rod 23 drive the two left brackets 16 to move close to or away from each other, and the right bracket 25 moves inside the base 19 through the sliding block 26, thereby the height of fan 1 that can be more convenient for through carrying out the micro-adjustment to fan 1, so that fan 1 can be more convenient dock with the device.

Fan 1 surface mounting has gas outlet 27, the inside swing joint of gas outlet 27 has axis of rotation 28, the surperficial swing joint of axis of rotation 28 has fixed ear 29, the top fixedly connected with card lid 30 of fixed ear 29, and fixed ear 29 passes through and forms rotation connection structure between axis of rotation 28 and gas outlet 27, and the surperficial gomphosis of card lid 30 has running roller 31, running roller 31 is cylindric structure, and the inside through connection of running roller 31 has fixed axle 32, fixed axle 32 surface swing joint has support frame 33, the one end fixedly connected with gas outlet 27 of support frame 33 rotates the fixed ear 29 of card lid 30 bottom fixed connection through axis of rotation 28 for mutual block between card lid 30 end surface and the running roller 31, card lid 30 protects the top of gas outlet 27, makes gas outlet 27 when not using, foreign matters such as the inside entering dust of gas outlet 27, resulting in damage to the interior of the fan 1.

S1: putting the titanium plate 5, the rotary column 8 and the protection block 9 into corresponding dies, and manufacturing the titanium plate 5, the rotary column 8 and the protection block 9 with required sizes;

s2: the rotary column 8 is arranged at one end of the motor 2;

s3: a fixed block 6 fixed on one side of the titanium plate 5 and the mounting plate 3 are mutually riveted and fixed, and the titanium plate 5 is fixed on one side of the mounting plate 3 through threaded connection between a positioning block 7 and the fixed block 6;

s4: finally, the protective block 9 is in threaded connection with the rotary column 8, and the connection part of the titanium plate 5 and the rotary column 8 is sealed;

s5: when sour gas gets into inside fan 1, sour gas can not get into inside motor 2, leads to motor 2 to damage, and then realizes motor 2's corrosion-resistant.

In summary, the following steps: as shown in fig. 1-5, when the corrosion-resistant waste acid tail gas centrifugal fan is used, firstly, the rotary column 8 is installed at one end of the motor 2, then the fixing block 6 fixed at one side of the titanium plate 5 and the mounting plate 3 are riveted and fixed with each other, the titanium plate 5 is fixed at one side of the mounting plate 3 through the threaded connection between the positioning block 7 and the fixing block 6, then the protection block 9 and the rotary column 8 are connected with each other through the threaded connection, the joint of the titanium plate 5 and the rotary column 8 is sealed, the mounting plate 3 is fixed at one side of the fan 1 through the fixing bolt 4, so that acid gas cannot enter the inside of the fan 1 when the fan 1 is used, thereby causing corrosion damage of the fan 1, two clamping blocks 12 are extruded, the two clamping blocks 12 extrude the spring 11, and the spring 11 is deformed until the surfaces of the clamping blocks 12 and the rotary column 8 are separated from each other, then the fan blade 14 is taken out from one end of the rotary column 8, so that the worker can more conveniently detach, replace and clean the fan blade 14, the adjusting block 22 is rotated by hand, the adjusting block 22 is in threaded connection with the left adjusting rod 21 and the right adjusting rod 23, so that the left adjusting rod 21 and the right adjusting rod 23 are close to or far away from each other, so that the left adjusting rod 21 and the right adjusting rod 23 drive the two left brackets 16 to be close to or far away from each other, meanwhile, the right bracket 25 moves in the base 19 through the sliding block 26, so that the height of the fan 1 can be more convenient, the fan 1 is slightly adjusted, so that the fan 1 can more conveniently butt with the device, the fixing lug 29 fixedly connected with the bottom of the clamping cover 30 is rotated through the rotating shaft 28, so that the surface of one end of the clamping cover 30 is mutually clamped with the roller 31, and the clamping cover 30 protects the top of the air outlet 27, when the air outlet 27 is not used, foreign matters such as dust and the like enter the air outlet 27, so that the inside of the fan 1 is damaged, and the method is characterized by the manufacturing method of the corrosion-resistant waste acid tail gas centrifugal fan.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.