Energy-saving fan of smoke exhaust system of aluminum electrolysis cell

Abstract

The utility model provides an energy-saving fan of a smoke exhaust system of an aluminum electrolysis cell, and aims to solve the technical problem that the working efficiency of fan blades is reduced due to the fact that solid pollutants are attached to the fan blades. The fan comprises a shell which is in a hollow cylinder shape, a main motor is arranged in the shell, and the axis of an output shaft of the main motor and the axis of the shell are collinear; the fan blades are of a straight plate type structure, and all the fan blades are evenly distributed around the output shaft of the main motor by a circle; the telescopic assembly is arranged on the shell, and the output end of the telescopic assembly can reciprocate in the radial direction of the shell; the blocking rod is arranged at the output end of the telescopic assembly, the length direction of the blocking rod is parallel to the axis of the shell, and the blocking rod can make contact with the fan blades; the driving assembly is arranged on the shell, and the driving end of the driving assembly can reciprocate in the radial direction of the shell; and the clamping assembly is provided with a clamping plate capable of being clamped on the fan blade and is arranged at the driving end of the driving assembly. The fan has the advantages that solid pollutants attached to the fan blades can be cleaned, the working efficiency of the fan blades is improved, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust of aluminum electrolytic cells, in particular to an energy-saving fan of a smoke exhaust system of an aluminum electrolytic cell. Background Art

[0002] Aluminum electrolysis cells produce a large amount of flue gas during operation. The flue gas coming out of the aluminum electrolysis cells contains gaseous and solid pollutants. Solid pollutants are divided into two categories: one is large particle pollutants (diameter>5μm), mainly alumina, carbon and cryolite dust; the other is fine particle pollutants (submicron particles), which are condensed from electrolyte vapor and contain up to 45% fluorine.

[0003] The flue gas in the aluminum electrolytic cell needs to be driven by a fan to be effectively discharged. The fan is generally installed in a pipeline. During long-term operation, solid pollutants will adhere to the fan blades under the action of static electricity, thereby reducing the working efficiency of the fan blades. Utility Model Content

[0004] In view of the technical problem in the prior art that the working efficiency of the fan blades is reduced due to solid pollutants attached to the fan blades, the utility model provides an energy-saving fan for the smoke exhaust system of an aluminum electrolytic cell, which has the advantages of being able to clean the solid pollutants attached to the fan blades, thereby improving the working efficiency of the fan blades and achieving the purpose of energy saving.

[0005] The technical solution of the utility model is:

[0006] An energy-saving fan for an aluminum electrolytic cell fume exhaust system, comprising:

[0007] The outer shell is a hollow cylindrical shape, and a main motor is arranged inside the outer shell, and the axis of the output shaft of the main motor is colinear with the axis of the outer shell;

[0008] A plurality of fan blades, which are of straight plate structure, and all the fan blades are evenly distributed around the output shaft of the main motor;

[0009] A telescopic assembly, arranged on the housing, wherein the output end of the telescopic assembly can reciprocate along the radial direction of the housing;

[0010] A lever, arranged on the output end of the telescopic assembly, the length direction of the lever is parallel to the axis of the housing, and the lever can contact the fan blade;

[0011] A driving assembly, disposed on the housing, wherein a driving end of the driving assembly can reciprocate along the radial direction of the housing;

[0012] The clamping assembly has a clamping plate that can be clamped on the fan blade and is arranged on the driving end of the driving assembly.

[0013] Optionally, the telescopic assembly includes:

[0014] A first motor, fixedly disposed inside the housing;

[0015] A first screw, one end of which is coaxially arranged at the end of the output shaft of the first motor, and the axis of the first screw is parallel to the radial direction of the housing;

[0016] A threaded tube, provided on the first screw rod;

[0017] Wherein, the shift rod is vertically arranged on the threaded tube.

[0018] Optionally, the telescopic assembly further includes:

[0019] A guide rod, disposed on the housing and arranged parallel to the first screw rod;

[0020] The sleeve is arranged on the shift rod and is slidably sleeved on the guide rod.

[0021] Optionally, the driving assembly comprises:

[0022] A support plate is horizontally placed in the shell, and two ends of the support plate are respectively fixed on two sides of the shell;

[0023] A second motor is disposed on the support plate;

[0024] A second screw rod is coaxially arranged on the output shaft of the second motor, and the axis of the second screw rod is perpendicular to the axis of the housing;

[0025] Wherein, the clamping assembly has a threaded hole matching the second screw rod.

[0026] Optionally, the driving assembly further includes:

[0027] A limiting rod, one end of which is disposed on the support plate, the other end of which is disposed on the housing, and is arranged parallel to the second screw rod;

[0028] Wherein, the clamping assembly is provided with a limiting hole matching the limiting rod.

[0029] Optionally, the clamping assembly comprises:

[0030] A slider, wherein the slider is provided with a threaded hole matching the second screw rod;

[0031] An elastic plate, one end of which is arranged on the slider, and the other end of which is arranged on one end of the clamping plate;

[0032] A traction rope, one end of which is arranged on an end of the elastic plate away from the slider;

[0033] The third motor is arranged on the sliding block, a disc is arranged on the output shaft of the third motor, and the other end of the traction rope is fixed on the circumference of the disc.

[0034] Optionally, the elastic plate is a U-shaped structure, the middle of the elastic plate is connected to the slider, and two ends of the elastic plate are respectively fixed with a clamping plate;

[0035] A traction rope is respectively provided at both ends of the elastic plate, and the ends of the two traction ropes are fixed on the disc;

[0036] A support rod is provided in the middle of the elastic plate, and the two traction ropes are both wound around the support rod.

[0037] Optionally, bristles are provided on the side surfaces of the two clamping plates that are close to each other.

[0038] Optionally, there is a distance between the support plate and the projection of the fan blade in the axial direction of the housing, and the sliding block is connected to the elastic plate via an arc-shaped connecting rod.

[0039] Compared with the prior art, the beneficial effects of the utility model are:

[0040] A main motor is arranged in the housing, and a plurality of fan blades are arranged on the output shaft of the main motor, thereby forming a fan structure.

[0041] After the fan has been working for a certain period of time, the main motor drives the fan blades to start, and then stops driving immediately, so that the fan blades continue to rotate under the action of inertia, and then the baffle is driven close to the central axis of the casing through the telescopic component, so that the gear lever blocks a fan blade, thereby achieving the positioning of the fan blade.

[0042] After the fan blade is positioned, the driving component drives the clamping component close to the end of the fan blade connected to the output shaft of the main motor, and clamps the fan blade through the clamping plate. Then, under the action of the driving component, the clamping component moves toward the inner wall of the outer shell, thereby scraping off the solid pollutants attached to the surface of the fan blade through the clamping plate.

[0043] When a fan blade is cleaned, the telescopic assembly and the main motor work simultaneously, and the gear lever quickly crosses over one fan blade and another adjacent fan blade, so that the driving assembly and the clamping assembly can clean the next fan blade.

[0044] Through this technical solution, this operation is performed multiple times after the fan has worked for a certain period of time, so that the solid pollutants on all the fan blades can be cleaned, thereby improving the working efficiency of the fan blades and achieving the purpose of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0047] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0048] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0049] Figure 4 for Figure 2 A magnified schematic diagram of point B in the middle. DETAILED DESCRIPTION

[0050] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0054] Example:

[0055] See also Figure 1-Figure 4 An energy-saving fan for an aluminum electrolytic cell smoke exhaust system includes a housing 1, a main motor 2, fan blades 3, a telescopic assembly 4, a gear lever 5, a driving assembly 6, and a clamping assembly 7. Specifically, the housing 1 is a hollow cylindrical structure, the main motor 2 is fixedly arranged inside the housing 1, the output shaft of the main motor 2 is colinear with the axis of the housing 1, and a plurality of fan blades 3 are evenly arranged around the output shaft of the main motor 2.

[0056] The fan blade 3 is a straight plate structure, the length direction of the fan blade 3 is perpendicular to the axis of the main motor 2, and one side of the fan blade 3 has an angle greater than 15° with the axis of the main motor 2. There is a distance between the end of the fan blade 3 away from the main motor 2 and the inner wall of the shell 1.

[0057] The telescopic assembly 4 is arranged on the inner wall of the housing 1, and the output end of the telescopic assembly 4 can reciprocate in a direction parallel to a radius of the housing 1. A baffle is arranged on the output end of the telescopic assembly 4, and the length direction of the baffle rod 5 is parallel to the axial direction of the housing 1, so that the length direction of the baffle is perpendicular to the moving direction of the telescopic end of the telescopic assembly 4. In addition, the telescopic end of the telescopic assembly 4 drives the baffle rod 5 to move toward the center line of the housing 1, and the distance between the baffle rod 5 and the center line of the housing 1 is smaller than the length of the fan blade 3, so that the baffle rod 5 can block the movement of the fan blade 3.

[0058] The driving assembly 6 is also arranged on the inner wall of the housing 1, and the output end of the driving assembly 6 can also reciprocate in a radial direction parallel to the housing 1. The clamping assembly 7 is arranged on the output end of the driving assembly 6, and the clamping assembly 7 includes a clamping plate 78, which can be added to the fan blade 3 and move along the length direction of the fan blade 3 under the action of the driving assembly 6.

[0059] The working principle of this embodiment is that a main motor 2 is arranged in a housing 1, and a plurality of fan blades 3 are arranged on the output shaft of the main motor 2, thereby forming a fan structure.

[0060] After the fan has been working for a certain period of time, the main motor 2 drives the fan blades 3 to start, and then immediately stops driving, so that the fan blades 3 continue to rotate under the action of inertia, and then the baffle is driven by the telescopic component 4 to approach the central axis of the casing 1, so that the gear lever 5 blocks one fan blade 3, thereby achieving the positioning of the fan blade 3.

[0061] After the fan blade 3 is positioned, the driving component 6 drives the clamping component 7 to approach the end of the fan blade 3 connected to the output shaft of the main motor 2, and clamps the fan blade 3 through the clamping plate 78. Then, under the action of the driving component 6, the clamping component 7 moves toward the inner wall of the outer shell 1, thereby scraping off the solid pollutants attached to the surface of the fan blade 3 through the clamping plate 78.

[0062] When a fan blade 3 is cleaned, the telescopic component 4 and the main motor 2 work simultaneously, and the shift rod 5 quickly crosses over a fan blade 3 and another adjacent fan blade 3, so that the driving component 6 and the clamping component 7 can clean the next fan blade 3.

[0063] Through this embodiment, after the fan has worked for a certain period of time, this operation is performed multiple times, so that the solid pollutants on all the fan blades 3 can be cleaned, thereby improving the working efficiency of the fan blades 3 to achieve the purpose of energy saving.

[0064] In one specific embodiment:

[0065] The telescopic assembly 4 includes a first motor 41, a first screw 42, a threaded tube 43, a guide rod 44 and a sleeve 45. The first motor 41 is fixedly arranged on the inner wall of the housing 1, and the output shaft of the first motor 41 is coaxially connected to one end of the first screw 42, and the axial direction of the first screw 42 is perpendicular to the axial direction of the housing 1. One end of the threaded tube 43 is sleeved on one end of the first screw 42 away from the first motor 41, and the thread of the threaded tube 43 matches the thread of the first screw 42.

[0066] The above-mentioned stopper rod 5 is fixedly disposed on one end of the threaded tube 43 away from the first screw rod 42 , and the stopper rod 5 is disposed perpendicularly to the threaded tube 43 .

[0067] One end of the guide rod 44 is fixedly arranged on the inner wall of the housing 1 and close to the first motor 41, and the guide rod 44 is arranged parallel to the first screw rod 42. The sleeve 45 is arranged on the gear lever 5 and is slidably sleeved on the guide rod 44.

[0068] In this embodiment, the first motor 41 drives the first screw 42 to rotate, so that the sleeve 45 and the first screw 42 match to drive the gear lever 5 to move. The guide rod 44 and the sleeve 45 are provided to limit the movement path of the gear lever 5.

[0069] In another specific embodiment:

[0070] The driving assembly 6 includes a support plate 61, a second motor 62, a second screw rod 63 and a limit rod 64. Specifically, the support plate 61 is transversely arranged inside the housing 1, and both ends of the support plate 61 are fixedly arranged on the two side walls inside the housing 1 respectively.

[0071] The second motor 62 is fixedly mounted on the support plate 61, and the axis of the output shaft of the second motor 62 is parallel to a radial direction of the housing 1. The output shaft of the second motor 62 is coaxially connected to one end of the second screw 63, and the other end of the second screw 63 is rotatably connected to the inner wall of the housing 1. The second screw 63 and the support plate 61 form a T-shaped structure.

[0072] The clamping assembly 7 has a threaded hole matching the second screw rod 63 .

[0073] One end of the limiting rod 64 is arranged on the support plate 61, and the other end of the limiting rod 64 is also arranged on the inner wall of the housing 1, and the limiting rod 64 is arranged parallel to the second screw rod 63. A limiting hole matching the limiting rod 64 is provided on the clamping assembly 7, and the limiting rod 64 is slidably matched with the limiting hole.

[0074] In this embodiment, the second motor 62 drives the second screw 63 to rotate, thereby driving the clamping assembly 7 to move through the second screw 63 and the threaded hole on the clamping assembly 7. By setting a limit rod 64, the movement path of the clamping assembly 7 can be limited.

[0075] In another specific embodiment:

[0076] The clamping assembly 7 includes a slider 71, an elastic plate 72, a traction rope 73, a third motor 74, a disc 75, a support rod 76 and a connecting rod 77. Specifically, the slider 71 is provided with a threaded hole matching the second screw rod 63 and a limiting hole matching the limiting rod 64, the third motor 74 is arranged on the slider 71, and the axis of the output shaft of the third motor 74 is consistent with the axis direction of the second screw rod 63, and a disc 75 is coaxially provided on the output shaft of the third motor 74.

[0077] One end of the elastic plate 72 is fixedly arranged on the slider 71, and the other end of the elastic plate 72 is fixedly arranged on one end of the clamping plate 78. One end of the traction rope 73 is fixedly arranged on one end of the elastic plate 72 connected to the clamping plate 78, and the other end of the traction rope 73 is fixedly connected to the circumference of the disc 75.

[0078] In this embodiment, the elastic plate 72 drives the clamping plate 78 to move, with a tendency to make the length direction of the clamping plate 78 perpendicular to the axial direction of the housing 1, and the third motor 74 drives the disc 75 to rotate, thereby pulling the traction rope 73, so that the elastic plate 72 bends, and drives the clamping plate 78 to fit the fan blade 3. In addition, there is a gap between the support plate 61 and the projection of the fan blade 3 in the axial direction of the housing 1, and the slider 71 and the elastic plate 72 are connected by an arc-shaped connecting rod 77. By providing the connecting rod 77, the support plate 61 and the second screw 63 can be prevented from affecting the rotation of the fan blade 3.

[0079] Preferably, the elastic plate 72 is a U-shaped structure, the middle of the elastic plate 72 is connected to the slider 71, and a clamping plate 78 is fixedly provided at both ends of the elastic plate 72. Under the action of the elastic plate 72, the two clamping plates 78 have a tendency to move away from each other. A traction rope 73 is provided at each end of the elastic plate 72, and the ends of the two traction ropes 73 are fixed on the disc 75. A support rod 76 is provided in the middle of the elastic plate 72, and the two traction ropes 73 are passed around the support rod 76. By providing two traction ropes 73 and two clamping plates 78, solid pollutants on both sides of the fan blade 3 can be scraped off at the same time.

[0080] In another specific embodiment:

[0081] Brushes are provided on the side surfaces of the two clamping plates 78 that are close to each other. The brushes are provided to isolate the scraper and the fan blades 3 to prevent the fan blades 3 from being worn.

[0082] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An energy-saving fan for an aluminum electrolytic cell fume exhaust system, characterized in that: include: The outer shell is a hollow cylindrical shape, and a main motor is arranged inside the outer shell, and the axis of the output shaft of the main motor is colinear with the axis of the outer shell; A plurality of fan blades, which are of straight plate structure, and all the fan blades are evenly distributed around the output shaft of the main motor; A telescopic assembly, arranged on the housing, wherein the output end of the telescopic assembly can reciprocate along the radial direction of the housing; A lever, arranged on the output end of the telescopic assembly, the length direction of the lever is parallel to the axis of the housing, and the lever can contact the fan blade; A driving assembly, disposed on the housing, wherein a driving end of the driving assembly can reciprocate along the radial direction of the housing; The clamping assembly has a clamping plate that can be clamped on the fan blade and is arranged on the driving end of the driving assembly.

2. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 1 is characterized in that: The telescopic assembly comprises: A first motor, fixedly disposed inside the housing; A first screw, one end of which is coaxially arranged at the end of the output shaft of the first motor, and the axis of the first screw is parallel to the radial direction of the housing; A threaded tube, provided on the first screw rod; Wherein, the shift rod is vertically arranged on the threaded tube.

3. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 2 is characterized in that: The telescopic assembly also includes: A guide rod, disposed on the housing and arranged parallel to the first screw rod; The sleeve is arranged on the shift rod and is slidably sleeved on the guide rod.

4. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 1 is characterized in that: The drive assembly comprises: A support plate is horizontally placed in the shell, and two ends of the support plate are respectively fixed on two sides of the shell; A second motor is disposed on the support plate; A second screw rod is coaxially arranged on the output shaft of the second motor, and the axis of the second screw rod is perpendicular to the axis of the housing; Wherein, the clamping assembly has a threaded hole matching the second screw rod.

5. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 4 is characterized in that: The drive assembly also includes: A limiting rod, one end of which is disposed on the support plate, the other end of which is disposed on the housing, and is arranged parallel to the second screw rod; Wherein, the clamping assembly is provided with a limiting hole matching the limiting rod.

6. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 4 is characterized in that: The clamping assembly comprises: A slider, wherein the slider is provided with a threaded hole matching the second screw rod; An elastic plate, one end of which is arranged on the slider, and the other end of which is arranged on one end of the clamping plate; A traction rope, one end of which is arranged on an end of the elastic plate away from the slider; The third motor is arranged on the sliding block, a disc is arranged on the output shaft of the third motor, and the other end of the traction rope is fixed on the circumference of the disc.

7. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 6, characterized in that: The elastic plate is a U-shaped structure, the middle part of the elastic plate is connected to the slider, and two ends of the elastic plate are respectively fixed with a clamping plate; A traction rope is respectively provided at both ends of the elastic plate, and the ends of the two traction ropes are fixed on the disc; A support rod is provided in the middle of the elastic plate, and the two traction ropes are both wound around the support rod.

8. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 7, characterized in that: Brush hairs are arranged on the side surfaces of the two clamping plates close to each other.

9. The energy-saving fan of the aluminum electrolytic cell smoke exhaust system according to claim 6, characterized in that: There is a distance between the projections of the support plate and the fan blades in the axial direction of the housing, and the slider is connected to the elastic plate via an arc-shaped connecting rod.

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