Ventilation device for mine

Abstract

The utility model relates to the field of coal mine ventilation, and discloses a ventilation device for a mine, which comprises an axial flow fan, and a protective net assembly and a filter net assembly which are sequentially arranged at the air inlet end of the axial flow fan, the filter screen assembly comprises a shell, a rotating ring rotationally arranged in the shell, a filter screen fixedly installed in the rotating ring, a driving device arranged on the shell and used for driving the rotating ring to rotate, and a dust collection head arranged on the air inlet side of the filter screen, used for sweeping filtered objects on the filter screen and provided with bristles. The dust collection head penetrates through the shell and is connected with a dust collector through a hose. The filter screen for filtering dust is mounted in the rotatable rotating ring, the dust collection head with the bristles is fixed on the shell and connected with the dust collector, the rotating ring is controlled to rotate and the filter screen is controlled to rotate during cleaning, and the dust is brushed down and sucked into the dust collector by the dust collection head in the rotating process of the filter screen. Non-stop cleaning is achieved through the active dust collection cleaning mode, the cleaning effect is good, and the normal ventilation requirement in the roadway can be met.

Description

Technical Field

[0001] The utility model relates to the field of coal mine ventilation, in particular to a ventilation device for mines. Background Art

[0002] At present, mine tunnel ventilation generally uses fans to extract external air from outside the mine tunnel and let the wind enter the mine tunnel to ensure the effective flow of gas. When the ventilation device is pumped, dust and other substances will be sucked into the pipe, affecting the normal operation of the equipment and at the same time not conducive to ensuring the cleanliness of the air in the mine tunnel. The common method is to install a filter on the ventilation device to block it. However, after long-term use, the filter needs to be disassembled and cleaned. When cleaning, the fan needs to be stopped, which will result in the mine tunnel not being able to form a good ventilation effect. Therefore, it is generally necessary to set up two sets of ventilation devices, one for backup and one for use to ensure the ventilation needs of the mine tunnel. However, this will increase the cost of use and maintenance. At the same time, it still needs to be disassembled and cleaned, which is costly.

[0003] The Chinese patent with the application date of 2021-10-20 and application number CN202122517238.X discloses a coal mine ventilation auxiliary equipment. Through the cooperation of the second motor, the rotating rod, the first bevel gear, the curved rod, the second bevel gear and the cleaning brush, the dust attached to the dust plate can be cleaned to prevent the dust plate from accumulating too much dust and affecting the ventilation. Through the cooperation of the funnel, the cone cover and the pull rod, not only can the dust cleaned from the dust plate be discharged, but also the dust falling into the funnel can be prevented from being sucked back again. The application date believes that this ventilation auxiliary equipment can only have a better cleaning effect when the fan is stopped. If the fan is turned on, the dust brushed off is difficult to fall into the funnel. Under the action of wind, the dust brushed off will adhere to the dust plate again. Frequent shutdown for cleaning makes it difficult to ensure good ventilation in the tunnel.

[0004] Based on this, the present application provides a mine ventilation device with good cleaning effect and non-stop cleaning to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art. To this end, the utility model provides a mine ventilation device with good cleaning effect and can be cleaned without stopping the machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a ventilation device for mines, comprising an axial flow fan, a protective net assembly and a filter assembly sequentially arranged at the air inlet end of the axial flow fan; the filter assembly comprises a shell, a swivel rotatably arranged in the shell, a filter fixedly installed in the swivel, a driving device arranged on the shell for driving the swivel to rotate, and a dust collector head with bristles arranged on the air inlet side of the filter for sweeping away filtered matter on the filter, wherein the dust collector head passes through the shell and is connected to a vacuum cleaner via a hose.

[0008] In some optional embodiments, the shell includes a first shell and a second shell, a groove is provided on the connecting side of the first shell and the second shell, and a limiting groove is formed at the groove after the first shell and the second shell are joined. A flange is provided on one side of the swivel, and the flange is rotatably installed in the limiting groove. The outer wall of the end of the swivel away from the flange is provided with meshing teeth, and the meshing teeth are connected to the driving device.

[0009] In some optional embodiments, the driving device includes a motor and a gear, the gear is mounted on the output shaft of the motor, and the gear passes through the second housing and is transmission-connected to the meshing teeth of the rotating ring.

[0010] In some optional embodiments, a protective cover is further provided outside the driving device, and the protective cover is fixedly mounted on the second shell.

[0011] In some optional embodiments, the vacuum head is in the shape of a flat long strip, and its length is greater than the radius of the filter.

[0012] In some optional embodiments, the dust collector head is disposed at the bottom of the first shell.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model installs the filter screen for filtering dust in a rotatable swivel, fixes the dust collection head with bristles on the shell, and connects the dust collection head to the vacuum cleaner. When cleaning, the swivel is controlled to rotate, and the filter screen makes a rotating motion. At the same time, the dust collection head brushes off the dust and sucks it into the vacuum cleaner during the rotation of the filter screen. The active dust collection cleaning method realizes non-stop cleaning, which not only has a good cleaning effect, but also can ensure the normal ventilation needs in the alley. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0016] Figure 1This is a cross-sectional view of the mine ventilation device provided by the utility model;

[0017] Figure 2 yes Figure 1 Provided partial enlarged image;

[0018] Figure 3 yes Figure 1 Right side view of the supplied vacuum head.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1—Protective net assembly, 1.1—Protective net, 2—Filter assembly, 2.1—Casing, 2.1.0—Limiting groove, 2.1.1—First casing, 2.1.2—Second casing, 2.2—Swivel, 2.2.1—Flange, 2.3—Filter, 2.4—Cleaning head, 2.4.1—Bristles, 2.5—Drive device, 2.5.1—Motor, 2.5.2—Gear, 2.6—Protective cover, 3—Axial fan, 4—Vacuum cleaner. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0024] In addition, the descriptions involving the terms "first", "second", etc. in the present invention are for descriptive purposes only and cannot be understood as indicating or implying their 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 at least one of such features. The terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0026] Example 1

[0027] This embodiment provides a ventilation device for mines, comprising an axial flow fan 3, a protective net assembly 1 and a filter assembly 2 sequentially arranged at the air inlet end of the axial flow fan, as shown in the attached figure. Figure 1 As shown, the shell of the protective net assembly 1 is flange-connected to the shell of the filter assembly 2, and the shell of the filter assembly 2 is also flange-connected to the shell of the axial flow fan 3. A protective net 1.1 is provided in the protective net assembly 1, which can prevent birds, mice and other creatures or lighter and larger foreign objects from being sucked in, and can play a role of preliminary filtration; the axial flow fan is existing technology and will not be described in detail again.

[0028] As attached Figure 1 and attached Figure 2 As shown, the filter assembly 2 includes a housing 2.1, a rotating ring 2.2, a filter 2.3, a dust collector head 2.4 and a driving device 2.5, wherein:

[0029] The swivel 2.2 is rotatably mounted within the housing 2.1. A preferred arrangement is as follows: the housing 2.1 is comprised of a first housing 2.1.1 and a second housing 2.1.2. A groove is provided at the connection between the first and second housings 2.1.1 and 2.1.2. A retaining groove 2.1.0 is formed at the groove after the first and second housings 2.1.1 and 2.1.2 are joined. The first and second housings are connected by a flange. A flange 2.2.1 is provided on one side of the swivel 2.2, which is rotatably mounted within the retaining groove 2.1.0. This design allows for the swivel to be rotatably mounted within the housing while also offering the advantage of easy assembly and disassembly.

[0030] The rotating ring 2.2 is driven by a drive device 2.5. The preferred drive structure is as follows: the outer wall of the end of the rotating ring 2.2 away from the flange 2.2.1 is provided with meshing teeth. The driving device 2.5 includes a motor 2.5.1 and a gear 2.5.2. The gear 2.5.2 is mounted on the output shaft of the motor 2.5.1. The gear 2.5.2 passes through the second housing 2.1.2 and is in transmission connection with the meshing teeth of the rotating ring 2.2. A protective cover 2.6 is also provided on the outside of the driving device 2.5. The protective cover 2.6 is fixedly mounted on the second housing 2.1.2. The provision of the protective cover not only protects the driving device but also serves to close the avoidance slot in the second housing through which the gear passes.

[0031] The dust collector head 2.4 is located on the air inlet side of the filter 2.3, passes through the housing 2.1, and is connected to the vacuum cleaner 4 via a hose. A circle of bristles 2.4.1 is provided at the mouth of the dust collector head 2.4 to remove dust from the filter. This design allows the dust collector head to brush off dust from the filter as the rotating ring rotates during cleaning, causing the filter to rotate.

[0032] Preferably, as attached Figure 2 and attached Figure 3 As shown, the vacuum head 2.4 is a flat long strip, and its length is greater than the radius of the filter, which can ensure that it cleans the entire filter.

[0033] Preferably, as attached Figure 2 As shown, the dust collector head 2.4 is located at the bottom of the first housing 2.1.1. This design allows the dust brushed off the filter to fall to the bottom of the first housing and be drawn into the dust collector head for removal as the filter rotates, preventing dust from accumulating at the bottom of the first housing and being unable to be removed.

[0034] Working Principle: During cleaning, the control drive device drives the rotating ring to rotate. The filter is fixedly installed in the rotating ring and rotates with it. As the filter rotates, the bristles on the dust collector head brush off the dust. The dust brushed off is then actively sucked into the vacuum cleaner, thus cleaning the filter with good cleaning effect. At the same time, the fan does not need to be turned off during cleaning, which does not affect the ventilation effect of the alley. The filter can be cleaned regularly to ensure the ventilation effect of the filter.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mine ventilation device comprising an axial flow fan, a protective screen assembly and a filter screen assembly sequentially arranged at the air inlet end of the axial flow fan; characterized in that: The filter assembly includes a shell, a swivel rotatably arranged in the shell, a filter fixedly installed in the swivel, a driving device arranged on the shell for driving the swivel to rotate, and a dust collector head with bristles arranged on the air inlet side of the filter for sweeping away the filtered material on the filter. The dust collector head passes through the shell and is connected to the vacuum cleaner through a hose.

2. The mine ventilation device according to claim 1, characterized in that: The shell includes a first shell and a second shell, and a groove is provided on the connecting side of the first shell and the second shell. After the first shell and the second shell are joined, a limiting groove is formed at the groove. A flange is provided on one side of the swivel, and the flange is rotatably installed in the limiting groove. The outer wall of the end of the swivel away from the flange is provided with meshing teeth, and the meshing teeth are connected to the driving device.

3. The mine ventilation device according to claim 2, characterized in that: The driving device includes a motor and a gear. The gear is installed on the output shaft of the motor. The gear passes through the second housing and is in transmission connection with the meshing teeth of the rotating ring.

4. The mine ventilation device according to claim 3, characterized in that: A protective cover is further provided outside the driving device, and the protective cover is fixedly installed on the second shell.

5. The mine ventilation device according to claim 1, characterized in that: The dust collector head is in the shape of a flat long strip, and its length is greater than the radius of the filter screen.

6. The mine ventilation device according to claim 2, characterized in that: The dust collecting head is arranged at the bottom of the first shell.

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