Efficient and energy-saving type air pressure driving dust removal fan

Abstract

The utility model discloses a high-efficiency and energy-saving type air pressure driving dust removal fan, relates to the technical field of air pressure driving dust removal fans, and aims to solve the problem that when the existing air pressure driving dust removal fan is used, the dust removal operation effect can be influenced when the flow speed of air is too low. The mounting hole is formed in one end of the outer side of the rear baffle, a groove is formed in one side of the interior of the mounting hole, the two mounting limiting sleeves are arranged on the rear side of the rear baffle, the number of the mounting limiting sleeves is large, the number of the mounting limiting sleeves is small, and the small diameter of the mounting limiting sleeves can be wrapped by the large diameter of the mounting limiting sleeves. The two installation limiting sleeves are divided into an upper separated semicircle and a lower separated semicircle, the flexible pads are installed on the inner walls of the large installation limiting sleeve and the small installation limiting sleeve, and the flexible pads are connected with the inner walls of the installation limiting sleeves in a hot melting mode.

Description

Technical Field

[0001] This utility model relates to the field of pneumatically driven dust collector fan technology, specifically a high-efficiency and energy-saving pneumatically driven dust collector fan. Background Technology

[0002] Gas and dust are major natural hazards in coal mining. As coal seams are mined deeper and have higher gas content, and as the production capacity of the working face increases, the amount of gas emitted increases. In poorly ventilated areas, local gas accumulation is likely to occur, especially in most coal mining faces in my country that use "U"-shaped ventilation systems.

[0003] For example, the Chinese authorized patent, CN116856994A (a dust and gas purification device), includes: a conveying pipe, one end of which is connected to a pneumatic wet dust collector fan; one end of the pneumatic wet dust collector fan is connected to a gas purification box; a pneumatic spray pump is fixedly installed on the inner wall of the gas purification box; one end of the pneumatic spray pump is connected to a liquid storage tank; a nozzle is installed at the output end of the pneumatic spray pump; an explosion-proof light is fixedly installed on the inner wall of the liquid storage tank; a pneumatic induced draft fan is connected to the side of the liquid storage tank; a pneumatic motor is installed inside the pneumatic wet dust collector fan; an air inlet is connected to the surface of the pneumatic motor; and an alkaline water tank is fixedly installed on the side of the liquid storage tank. This invention offers high dust and gas purification efficiency, simple operation, convenient use, and is entirely pneumatically driven, ensuring safety and reliability. It also features low power consumption and low cost, significantly reducing dust and gas content in corners and promoting safe production.

[0004] However, existing pneumatically driven dust collectors suffer from reduced dust collection efficiency when the gas flow rate is too low, thus failing to meet current requirements. Therefore, we have proposed a high-efficiency and energy-saving pneumatically driven dust collector. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency and energy-saving pneumatically driven dust collector fan to solve the problem mentioned in the background art that the dust collection effect of existing pneumatically driven dust collector fans is affected when the gas flow rate is too low.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving pneumatically driven dust removal fan, comprising: a front baffle plate is provided at the front end of the pneumatic dust removal fan body, a rear baffle plate is provided at the rear end of the pneumatic dust removal fan body, and a conveying soft sleeve is provided on the outer side of the rear of the pneumatic dust removal fan body, one end of the conveying soft sleeve being heat-fused to a ring of the outer wall of the rear baffle plate;

[0007] Also includes:

[0008] The mounting hole is installed inside one side of the outer side of the rear baffle. A groove is provided on one side of the mounting hole. A mounting limiting sleeve is provided on the rear side of the rear baffle. There are two mounting limiting sleeves, one large and one small. The larger diameter of the mounting limiting sleeve can wrap around the smaller diameter of the mounting limiting sleeve. The two mounting limiting sleeves are divided into two separate semicircles, one upper and one lower.

[0009] A flexible pad is installed on the inner wall of the two mounting limit sleeves of different sizes, and the flexible pad is heat-fused to the inner wall of the mounting limit sleeve.

[0010] Preferably, mounting rods are provided above and below the inner sides of the two mounting limiting sleeves of different sizes. One end of each mounting rod is installed inside the mounting hole. Elastic rods are provided inside both sides of one end of each mounting rod. A pulley is provided at one end of each elastic rod. The pulley is rotatably connected to one end of the elastic rod through a central rotating shaft.

[0011] Preferably, a connecting piece is provided on one side of the outer wall of both the large and small mounting limit sleeves, and two sets of connecting pieces are provided. The upper and lower two separate semi-circular mounting limit sleeves are threadedly connected to the connecting piece by a second bolt, thereby forming a complete circular sleeve from the upper and lower two separate semi-circular mounting limit sleeves.

[0012] Preferably, the front end face of the front baffle is provided with a metal mesh cover bracket, and the metal mesh cover bracket is threadedly connected to the front end face of the front baffle by a first bolt.

[0013] Preferably, the pneumatic dust collector body has an internal cavity, an auxiliary motor is installed inside the internal cavity, and a fan blade is arranged around the outer wall of the auxiliary motor, with four fan blades in total.

[0014] Preferably, the upper end face of the pneumatic dust collector fan body is provided with a handle, and the lower end face of the pneumatic dust collector fan body is provided with two columns, both of which are welded to the lower end face of the pneumatic dust collector fan body.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through a rear baffle, mounting holes, grooves, mounting limit sleeves, mounting rods, connecting pieces, elastic rods, pulleys, a central rotating shaft, a flexible pad, and a conveying soft sleeve, allows the conveying soft sleeve to be flipped open from the end face of the rear baffle when the gas flow rate is low. Then, two mounting limit sleeves are installed in the mounting holes via the mounting rods, and the pulleys are installed in the grooves by the elastic rods for locking. By gradually reducing the diameter of the conveying pipe, the gas flow rate is further increased, effectively saving energy and avoiding the impact on dust removal efficiency caused by excessively low gas flow rates in existing pneumatically driven dust collectors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the main body of the pneumatic dust removal fan of this utility model;

[0019] Figure 3 This is a schematic diagram of the rear end face structure of the rear baffle of this utility model;

[0020] Figure 4 This is a schematic diagram of the unused structure of the conveying soft sleeve of this utility model;

[0021] Figure 5 This is a diagram of the internal structure at point A of this utility model;

[0022] Figure 6 This is a diagram of the internal structure at point B of this utility model;

[0023] In the diagram: 100, front baffle; 1001, main body of pneumatic dust collector; 101, metal mesh cover bracket; 102, first bolt; 103, inner cavity; 104, fan blade; 105, handle; 106, power assist motor; 200, rear baffle; 201, mounting hole; 202, groove; 300, mounting limit sleeve; 3001, mounting rod; 301, connecting piece; 302, second bolt; 303, elastic rod; 304, pulley; 305, central rotating shaft; 306, flexible pad; 400, column foot; 500, conveying soft sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1

[0027] Please see Figure 1-6 An embodiment of this utility model is provided: a high-efficiency and energy-saving pneumatically driven dust removal fan, comprising: a front baffle 100 provided at the front end of the pneumatic dust removal fan body 1001, a rear baffle 200 provided at the rear end of the pneumatic dust removal fan body 1001, and a conveying soft sleeve 500 provided on the outer side of the rear of the pneumatic dust removal fan body 1001, one end of the conveying soft sleeve 500 being heat-fused to a ring of the outer wall of the rear baffle 200;

[0028] Also includes:

[0029] The mounting hole 201 is installed inside the outer end of the rear baffle 200. A groove 202 is provided on one side inside the mounting hole 201. A mounting limiting sleeve 300 is provided on the rear side of the rear baffle 200. There are two mounting limiting sleeves 300, one large and one small. The larger diameter of the mounting limiting sleeve 300 can wrap around the smaller diameter of the mounting limiting sleeve 300. The two mounting limiting sleeves 300 are divided into two separate semicircles, one upper and one lower.

[0030] The flexible pad 306 is installed on the inner wall of the two mounting limit sleeves 300 of different sizes, and the flexible pad 306 is heat-fused to the inner wall of the mounting limit sleeve 300.

[0031] When the gas flow rate is low, the conveying soft sleeve 500 can be flipped open from the end face of the rear baffle 200, and then the two installation limiting sleeves 300 can be installed in the installation hole 201 through the installation rod 3001. The elastic rod 303 will install the pulley 304 in the groove 202 for locking. By gradually reducing the diameter of the conveying pipe from large to small, the gas flow rate can be further increased, thereby effectively saving energy.

[0032] Example 2

[0033] Please see Figure 2 and Figure 5The upper and lower sides of the inner sides of the two mounting limit sleeves 300 are provided with mounting rods 3001. One end of the mounting rod 3001 is installed inside the mounting hole 201. Elastic rods 303 are provided inside both sides of one end of the mounting rod 3001. A pulley 304 is provided at one end of the elastic rod 303. The pulley 304 is rotatably connected to one end of the elastic rod 303 through a central rotating shaft 305.

[0034] The elastic rod 303 and pulley 304 are provided to allow the mounting rod 3001 to be installed inside the mounting hole 201 and groove 202 for limiting.

[0035] Please see Figure 2 and Figure 3 Each of the two installation limit sleeves 300 has a connecting piece 301 on one side of its outer wall, and there are two sets of connecting pieces 301. The upper and lower two separate semicircular installation limit sleeves 300 are threadedly connected to the connecting pieces 301 by the second bolt 302, thereby forming the upper and lower two separate semicircular installation limit sleeves 300 into a complete circular sleeve.

[0036] The installation of two limiting sleeves 300 of different sizes allows the conveying flexible sleeve 500 to form a flexible pipe from a large diameter to a small diameter, thereby accelerating the gas flow rate.

[0037] Please see Figure 1 A metal mesh bracket 101 is provided on the front end face of the front baffle 100, and the metal mesh bracket 101 is threadedly connected to the front end face of the front baffle 100 by a first bolt 102.

[0038] Please see Figure 1 The pneumatic dust removal fan body 1001 has an inner cavity 103 inside, an auxiliary motor 106 inside the inner cavity 103, and a fan blade 104 is arranged around the outer wall of the auxiliary motor 106, and there are four fan blades 104.

[0039] Please see Figure 1 and Figure 2 The upper end face of the pneumatic dust collector fan body 1001 is provided with a handle 105, and the lower end face of the pneumatic dust collector fan body 1001 is provided with a column foot 400. There are two columns foot 400, and both columns foot 400 are welded to the lower end face of the pneumatic dust collector fan body 1001.

[0040] Working principle: During use, the compressed airflow passes through the rear baffle 200 and enters the inner cavity 103 of the pneumatic dust collector body 1001. The fan blades 104 are rotated by the auxiliary motor 106 and the circulating gas. The rotating fan blades 104 further discharge the gas and dust in the working space. When the circulating gas flow is low, the conveying soft sleeve 500 can be flipped open from the end face of the rear baffle 200. Then, the two installation limit sleeves 300 are installed in the installation hole 201 through the installation rod 3001. The elastic rod 303 installs the pulley 304 in the groove 202 for locking. By gradually reducing the diameter of the conveying pipe, the circulating gas flow rate is further increased, thereby effectively saving energy.

[0041] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0042] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-efficiency and energy-saving pneumatically driven dust collector fan, comprising a front baffle (100) provided at the front end of the pneumatic dust collector fan body (1001), a rear baffle (200) provided at the rear end of the pneumatic dust collector fan body (1001), and a conveying soft sleeve (500) provided on the outer side of the rear of the pneumatic dust collector fan body (1001), one end of the conveying soft sleeve (500) being heat-fused to a ring of the outer wall of the rear baffle (200); Its features are: Also includes: The mounting hole (201) is installed inside the outer end of the rear baffle (200). A groove (202) is provided on one side of the mounting hole (201). A mounting limiting sleeve (300) is provided on the rear side of the rear baffle (200). There are two mounting limiting sleeves (300), one large and one small. The larger diameter of the mounting limiting sleeve (300) can wrap the smaller diameter of the mounting limiting sleeve (300). The two mounting limiting sleeves (300) are divided into two separate semicircles. A flexible pad (306) is installed on the inner wall of the two mounting limit sleeves (300) of different sizes, and the flexible pad (306) is heat-fused to the inner wall of the mounting limit sleeve (300).

2. The high-efficiency and energy-saving pneumatically driven dust collector fan according to claim 1, characterized in that: Mounting rods (3001) are provided on the upper and lower sides of the inner sides of the two mounting limiting sleeves (300) of different sizes. One end of the mounting rod (3001) is installed inside the mounting hole (201). Elastic rods (303) are provided on both sides of one end of the mounting rod (3001). A pulley (304) is provided at one end of the elastic rod (303). The pulley (304) is rotatably connected to one end of the elastic rod (303) through a central rotating shaft (305).

3. The high-efficiency energy-saving pneumatically driven dust collector fan according to claim 1, characterized in that: A connecting piece (301) is provided on one side of the outer wall of both the large and small mounting limit sleeves (300), and there are two sets of connecting pieces (301). The upper and lower two separate semicircular mounting limit sleeves (300) are threaded to the connecting piece (301) by the second bolt (302), thereby forming a complete circular sleeve from the upper and lower two separate semicircular mounting limit sleeves (300).

4. The high-efficiency and energy-saving pneumatically driven dust collector fan according to claim 1, characterized in that: The front face of the front baffle (100) is provided with a metal mesh cover bracket (101), and the metal mesh cover bracket (101) is threadedly connected to the front face of the front baffle (100) by a first bolt (102).

5. The high-efficiency energy-saving pneumatically driven dust collector fan according to claim 1, characterized in that: The pneumatic dust removal fan body (1001) has an inner cavity (103) inside, and an auxiliary motor (106) is installed inside the inner cavity (103). A fan blade (104) is arranged around the outer wall of the auxiliary motor (106), and there are four fan blades (104).

6. The high-efficiency and energy-saving pneumatically driven dust collector fan according to claim 1, characterized in that: The upper end face of the pneumatic dust removal fan body (1001) is provided with a handle (105), and the lower end face of the pneumatic dust removal fan body (1001) is provided with a column foot (400), and there are two columns foot (400), both of which are welded to the lower end face of the pneumatic dust removal fan body (1001).

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