Mining anti-explosion local fan

Abstract

The utility model discloses a mining anti-explosion local fan, which belongs to the technical field of mining ventilation equipment and comprises a main air duct and a fan body mounted on the inner side of the main air duct, the main air duct comprises a first air duct and a second air duct which are connected through bolts, and an air inlet pipe is fixedly connected to one end, far away from the second air duct, of the first air duct. The fan body comprises a motor and a fan connected to the output end of the motor, one end of the fan is located on the inner side of the air inlet pipe, the side wall of the air inlet pipe is connected with a water pipe extending to the middle of the air inlet pipe, and the outer side of the motor is provided with a motor shell connected to the inner wall of the main air duct. And guide vanes are arranged on the outer wall of the motor shell. Through the protection shell and the sound absorption cotton, the sound absorption cotton wraps the middle of the main air duct, noise can be reduced, and meanwhile the protection shell can prevent the main air duct from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mine ventilation device, in particular to a mine explosion -proof local fan, belong to mine ventilation equipment technical field. BACKGROUND

[0002] At present, the ventilation work of coal mine underground coal and rock roadway driving work mainly relies on the pressure type local fan to realize the ventilation, and its main function is to dilute and remove the toxic and harmful gas in the driving work space and supply fresh airflow to the driving work space. The existing fan cannot filter and remove dust from the air in the mine, and the ventilation quality is poor. The existing fan has large noise when used in the mine, which seriously affects the construction of workers.

[0003] Therefore, the utility model provides a new solution. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to solve the problem of large noise of the existing fan when used in the mine, which seriously affects the construction of workers, and provide a mine explosion -proof local fan.

[0005] The purpose of the utility model can be achieved by adopting the following technical scheme:

[0006] A mine explosion -proof local fan, comprising a main air duct and a fan body installed on the inner side of the main air duct, one end of the main air duct is connected with an air inlet pipe, the other end of the main air duct is connected with an air outlet pipe, the fan body comprises a motor and a fan connected with the output end of the motor, one end of the fan is located on the inner side of the air inlet pipe, a water pipe extending to the middle part of the air inlet pipe is connected on the air inlet pipe, a motor shell connected on the inner wall of the main air duct is arranged on the outer side of the motor, guide vanes are arranged on the outer wall of the motor shell, a protective shell is installed on the outer wall of the main air duct, sound -absorbing cotton is installed between the protective shell and the main air duct, and a dehumidifier is movably installed on the air outlet pipe.

[0007] Preferably, the bottom of the main air duct is connected with a support frame, and the bottom of the support frame is provided with a rubber pad.

[0008] Preferably, a dehydration tank is fixedly connected to the bottom of the main air duct, a sewage pipe is fixedly connected to one end of the dehydration tank close to the air inlet pipe, and a valve is installed on the sewage pipe.

[0009] Preferably, a filter screen is installed on the inner side of the air inlet pipe.

[0010] Preferably, the dehumidifier comprises a mounting shell installed on the outer wall of the air outlet pipe, a connecting frame is movably installed on the inner side of the mounting shell, and a moisture absorbing cotton screen is installed in the middle part of the connecting frame.

[0011] Preferably, the bottom inner wall of the main air duct is fixedly connected with a first connecting plate, the bottom end of the motor shell is fixedly connected with a second connecting plate, and the first connecting plate and the second connecting plate are connected with each other through bolts.

[0012] Preferably, the protective shell comprises a bottom shell mounted on the outer wall of the dehydration groove, and side shells are hingedly connected to the two sides of the bottom shell and connected with each other through bolts.

[0013] Preferably, one end of the air inlet pipe and the air outlet pipe close to the main air duct is fixedly connected with a flange, and the flange is connected to the main air duct through screws.

[0014] Preferably, the two ends of the main air duct are provided with screw holes.

[0015] Preferably, one end of the water pipe inside the air inlet pipe is connected with a shower head.

[0016] The beneficial technical effects of the utility model are as follows: according to the mine explosion-proof local ventilator, the main air duct, the guide vane and the water pipe are arranged, when the fan body inhales air through the air inlet pipe, the water pipe sprays water, under the action of the fan, the dust in the air can be quickly mixed and adsorbed, then under the action of the guide vane, the water is guided to the dehydration groove at the bottom of the main air duct, due to the blocking of the dehydration groove and the gravity of the water, most of the water remains in the dehydration groove, and through the action of the dehumidifier, the remaining water can be absorbed, so that the dust removal effect is achieved, clean and fresh air is provided for the working face, through the protective shell and the sound-absorbing cotton, the sound-absorbing cotton is wrapped in the middle of the main air duct, the noise can be reduced, and the protective shell can prevent the main air duct from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure sectional view of a preferred embodiment provided by the utility model;

[0018] Figure 2 It is a whole structure side sectional view of a preferred embodiment provided by the utility model;

[0019] Figure 3 It is an explosion view of a whole structure of a preferred embodiment provided by the utility model;

[0020] Figure 4 It is a whole structure schematic view of a preferred embodiment provided by the utility model;

[0021] Figure 5 It is a main air duct structure side view of a preferred embodiment provided by the utility model;

[0022] Figure 6A preferred embodiment of the utility model provides a guide vane structure schematic diagram.

[0023] In the figure: 1, main air cylinder;2, fan body;3, dehydration groove;4, dehumidifier;5, air inlet pipe;6, air outlet pipe;7, motor;8, fan;9, water pipe;10, motor shell;11, guide vane;12, support frame;13, rubber pad;14, blow-off pipe;15, filter screen;16, moisture absorbing cotton screen;17, first connecting plate;18, second connecting plate;19, shower head;20, protective shell;21, sound absorbing cotton;22, bottom shell;23, edge shell;24, mounting shell;25, connecting frame;26, flange;27, screw hole. DETAILED DESCRIPTION

[0024] In order to make the technical scheme of the utility model more clear and explicit for those skilled in the art, the utility model will be further described in detail below in conjunction with examples and drawings, but the implementation of the utility model is not limited to this.

[0025] As Figures 1-6 shown, the mine explosion-proof local ventilator provided by the embodiment comprises a main air cylinder 1 and a fan body 2 installed on the inner side of the main air cylinder 1, one end of the main air cylinder 1 is connected with an air inlet pipe 5, the other end of the main air cylinder 1 is connected with an air outlet pipe 6, the fan body 2 comprises a motor 7 and a fan 8 connected on the output end of the motor 7, one end of the fan 8 is located on the inner side of the air inlet pipe 5, the air inlet pipe 5 is connected with a water pipe 9 extending to the middle part of the air inlet pipe 5, the outer side of the motor 7 is provided with a motor shell 10 connected on the inner wall of the main air cylinder 1, the outer wall of the motor shell 10 is provided with a guide vane 11, the outer wall of the main air cylinder 1 is installed with a protective shell 20, the protective shell 20 and the main air cylinder 1 are installed with sound absorbing cotton 21, and the air outlet pipe 6 is movably installed with a dehumidifier 4. Through the setting of the main air cylinder 1, the guide vane 11 and the water pipe 9, when the fan body 2 inhales through the air inlet pipe 5, the water pipe 9 sprays water, under the action of the fan 8, the dust in the air can be quickly mixed and adsorbed, then under the action of the guide vane 11, the water is guided to the dehydration groove 3 at the bottom of the main air cylinder 1, due to the blocking of the dehydration groove 3 and the gravity of the water itself, most of the water remains in the dehydration groove 3, and through the action of the dehumidifier 4, the remaining water can be absorbed, so that the dust removal effect is achieved, and clean and fresh air is provided for the working face. Through the protective shell 20 and the sound absorbing cotton 21, the sound absorbing cotton 21 is wrapped in the middle part of the main air cylinder 1, which can reduce the noise, and the protective shell 20 can prevent the main air cylinder 1 from being damaged.

[0026] In the embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the bottom of the main air cylinder 1 is connected with a support frame 12, the bottom of the support frame 12 is installed with a rubber pad 13, through the setting of the rubber pad 13, the shock absorption effect can be achieved; the bottom of the main air cylinder 1 is fixedly connected with a dehydration tank 3, one end of the dehydration tank 3 close to the air inlet pipe 5 is fixedly connected with a blowdown pipe 14, a valve is installed on the blowdown pipe 14, through the setting of the blowdown pipe 14, the sewage for absorbing dust is discharged; the inner side of the air inlet pipe 5 is installed with a filter screen 15, the filter screen 15 installed in the air inlet pipe 5 can remove part of the dust; one end of the water pipe 9 located on the inner side of the air inlet pipe 5 is connected with a shower head 19, through the setting of the shower head 19, the water body is uniformly dispersed, and the dust absorption efficiency is improved.

[0027] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the dehumidifier 4 comprises a mounting shell 24 installed on the outer wall of the air outlet pipe 6, the inner side of the mounting shell 24 is movably installed with a connecting frame 25, and the middle of the connecting frame 25 is installed with a moisture absorbing cotton screen 16. Through the setting of the mounting shell 24, the connecting frame 25 is convenient to disassemble and assemble, so that the moisture absorbing cotton screen 16 is cleaned.

[0028] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the bottom inner wall of the main air cylinder 1 is fixedly connected with a first connecting plate 17, the bottom end of the motor shell 10 is fixedly connected with a second connecting plate 18, and the first connecting plate 17 and the second connecting plate 18 are connected with each other through bolts. Through the setting of the first connecting plate 17 and the second connecting plate 18, the motor shell 10 is convenient to install.

[0029] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the protective shell 20 comprises a bottom shell 22 installed on the outer wall of the dehydration tank 3, the two sides of the bottom shell 22 are both connected with a side shell 23 through a hinge, and the two side shells 23 are connected with each other through bolts. Through the setting of the bottom shell 22 and the side shell 23, the protective shell 20 can be wrapped more tightly, and is convenient to install.

[0030] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , one end of the air inlet pipe 5 and the air outlet pipe 6 close to the main air cylinder 1 is fixedly connected with a flange 26, the flange 26 is connected on the main air cylinder 1 through screws, and both ends of the main air cylinder 1 are provided with screw holes 27. Through the setting of the flange 26 and the screw hole 27, the disassembly and assembly are facilitated.

[0031] In the embodiment, as shown in Figure 1 Figure 2 Figure 3 Figures 1-6 , the working process of the mine explosion-proof local ventilator provided in the embodiment is as follows:

[0032] Step 1: water pipe 9 is connected with water source, when fan body 2 inhales through air inlet pipe 5, water pipe 9 sprays water, under the action of fan 8, dust in air can be mixed and adsorbed quickly;

[0033] Step 2: then water body enters main air duct 1 with air flow, rotates along the inner wall of main air duct 1, then under the action of guide vane 11, water is guided to dehydration groove 3 at the bottom of main air duct 1;

[0034] Step 3: most of water remains in dehydration groove 3, small part of water vapor enters air outlet pipe 6 with air flow, at this time, is absorbed by moisture absorbing cotton net 16, clean air flow blows into working surface, when moisture absorbing cotton net 16 needs to be cleaned, pull out connecting frame 25 to clean.

[0035] The above is only further embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the disclosed range, which belongs to the protection scope of the present application.

Claims

1. A mine explosion-proof local ventilation fan, comprising a main ventilation duct (1) and a fan body (2) installed inside the main ventilation duct (1), characterized in that, One end of the main air duct (1) is connected to an air inlet pipe (5), and the other end of the main air duct (1) is connected to an air outlet pipe (6). The fan body (2) includes a motor (7) and a fan (8) connected to the output end of the motor (7). One end of the fan (8) is located inside the air inlet pipe (5). A water pipe (9) extending to the middle of the air inlet pipe (5) is connected to the air inlet pipe (5). A motor housing (10) connected to the inner wall of the main air duct (1) is provided on the outside of the motor (7). A guide vane (11) is provided on the outer wall of the motor housing (10). A protective shell (20) is installed on the outer wall of the main air duct (1). A sound-absorbing cotton (21) is installed between the protective shell (20) and the main air duct (1). A dehumidifier (4) is movably installed on the air outlet pipe (6).

2. The mine explosion-proof local ventilation fan according to claim 1, characterized in that, The bottom of the main air duct (1) is connected to a support frame (12), and a rubber pad (13) is installed at the bottom of the support frame (12).

3. A mine explosion-proof local ventilation fan according to claim 1, characterized in that, The bottom of the main air duct (1) is fixedly connected to a dehydration tank (3), and a sewage pipe (14) is fixedly connected to one end of the dehydration tank (3) near the air inlet pipe (5), and a valve is installed on the sewage pipe (14).

4. A mine explosion-proof local ventilation fan according to claim 1, characterized in that, A filter screen (15) is installed on the inner side of the air inlet pipe (5).

5. A mine explosion-proof local ventilation fan according to claim 1, characterized in that, The dehumidifier (4) includes a mounting shell (24) installed on the outer wall of the air outlet pipe (6), a connecting frame (25) is movably installed on the inner side of the mounting shell (24), and a moisture-absorbing cotton net (16) is installed in the middle of the connecting frame (25).

6. A mine explosion-proof local ventilation fan according to claim 1, characterized in that, A first connecting plate (17) is fixedly connected to the bottom inner wall of the main air duct (1), and a second connecting plate (18) is fixedly connected to the bottom end of the motor housing (10). The first connecting plate (17) and the second connecting plate (18) are connected to each other by bolts.

7. A mine explosion-proof local ventilation fan according to claim 3, characterized in that, The protective shell (20) includes a bottom shell (22) installed on the outer wall of the dehydration tank (3). Both sides of the bottom shell (22) are connected to side shells (23) by hinges, and the two side shells (23) are connected to each other by bolts.

8. A mine explosion-proof local ventilation fan according to claim 1, characterized in that, The air inlet pipe (5) and the air outlet pipe (6) are both fixedly connected to a flange (26) at one end near the main air duct (1), and the flange (26) is connected to the main air duct (1) by screws.

9. A mine explosion-proof local ventilation fan according to claim 8, characterized in that, Both ends of the main air duct (1) are provided with screw holes (27).

10. A mine explosion-proof local ventilation fan according to claim 1, characterized in that, A shower head (19) is connected to one end of the water pipe (9) located inside the air inlet pipe (5).

Images