Mining spraying fan

Abstract

The utility model discloses a mining spraying fan which comprises a fan body, a water spraying ring is installed at the exhaust end of the fan body, a plurality of water spraying connectors are arranged on the inner side of the water spraying ring, and the water spraying connectors are obliquely arranged towards the outer side. The water spraying ring is detachably connected with the fan body; the top of the fan body is rotationally connected with a hanging rod, an electric push rod is installed at the rear end of the hanging rod, the output end of the electric push rod is connected with the fan body, and the electric push rod is used for driving the fan body to adjust the dip angle. The water spraying ring is arranged at the discharge end of the fan body, and airflow is driven by the fan to be blown to water sprayed out of the water spraying ring, so that the water atomization effect is achieved; and the water spraying ring only needs to be connected with a water supply pipeline in the mine tunnel, operation is easy and convenient, an independent water storage structure is not needed, the size of the spraying fan is reduced, the situation that the spraying fan occupies too much space in the mine tunnel is avoided, and the fan body is hung on the inner side of the mine tunnel through the hanging rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, concretely is a mine exploitation spray fan. BACKGROUND

[0002] In the mine exploitation operation, dust pollution is one of the important problems threatening safety production and occupational health. According to the statistics of "2024 China Mine Safety White Paper", the proportion of silicosis in national metal and nonmetal mines reaches 63%, and 80% of the dust comes from the tunneling, blasting and transportation links. In order to reduce the problem of dust pollution in mine exploitation operation, spray fan is often used to cooperate with dust fall in mine exploitation operation.

[0003] The utility model discloses a mine exploitation spray fan, including mobile trolley, the support rod of connecting in the top of mobile trolley, with the support rod top end connection's main body shell, the lateral surface fixed mounting of main body shell has side draught barrel, the middle part fixed mounting of main body shell inner chamber has driving pulley, the active connection of driving pulley has transmission belt. This spray fan sets up three side draught barrels on the lateral surface of main body shell, and adopts driving pulley, transmission belt and driven pulley combination to form a transmission mechanism, so that the power of driving pulley is transmitted to driven pulley, so that the side draught fan and main fan rotate synchronously, so that the side draught barrel can also spray around the dust fall, expand the dust fall range, and the spray range of the side draught barrel inclined to the outside in triangular distribution is further expanded, and the temperature around can be quickly reduced, avoid the device operating temperature is too high, improve the practicality of device.

[0004] The mine exploitation spray fan provided by the above-mentioned patent expands the dust fall range by setting multiple air ducts, and the spray fan can be moved. However, the spray fan with this structure can only be used in open mine, and if it is pushed into the mine tunnel for spray dust fall, it will seriously affect the ground space of the mine tunnel and the mechanical traffic. Because the mine tunnel is relatively narrow, the mobile spray fan needs to be used on the ground, therefore, the existing mobile spray fan is not suitable for use in the mine tunnel of mine exploitation, and there is no other equipment suitable for dust fall in the mine tunnel, which makes the dust fall in the mine tunnel more troublesome. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a mine exploitation spray fan, which aims at improving the problem that the existing mobile spray fan is not suitable for use in the mine tunnel of mine exploitation, and there is no other equipment suitable for dust fall in the mine tunnel, which makes the dust fall in the mine tunnel more troublesome.

[0006] The utility model is realized as follows:

[0007] The utility model provides a mine exploitation sprays fan, including fan body, the fan body exhaust end is equipped with water spraying ring, the inside of water spraying ring is equipped with a plurality of water spraying connector, water spraying connector is inclined to outside setting, water spraying ring and fan body can detachable link, the top rotation of fan body is connected with suspender, the rear end of suspender installs electric push rod, electric push rod output and fan body link, and electric push rod is used for driving fan body to carry out the inclination adjustment.

[0008] Preferably, the fan body is internally provided with a mounting bracket, the mounting bracket is provided with a motor, and the motor output end is connected with an impeller; the bottom of the exhaust end of the fan body is provided with a bayonet.

[0009] Preferably, the top middle of the fan body is provided with a first adapter plate, the middle of the first adapter plate is provided with a first adapter hole; the top rear end of the fan body is provided with a second adapter plate, and the middle of the second adapter plate is provided with a second adapter hole.

[0010] Preferably, the water spraying ring is provided with a plurality of fixing feet on the exhaust end of the fan body, the fixing feet are provided with fixing holes; the bottom end of the water spraying ring is provided with a connecting pipe, the end of the connecting pipe is provided with a connecting cap, and the connecting pipe and the water spraying ring are clamped at the bayonet.

[0011] Preferably, the suspender is provided with a plurality of bolt holes, and the bottom of the suspender is provided with a suspension rod; the suspender and the suspension rod form a T-shaped structure.

[0012] Preferably, the rear end of the suspender is provided with two second adapters, the middle of the second adapter is provided with a second pin hole; the bottom end of the suspension rod is provided with a first adapter, the first adapter is in U-shaped structure, and the middle of the first adapter is provided with a first pin hole.

[0013] Preferably, the top end of the electric push rod is provided with a mounting plate, the middle of the mounting plate is provided with a mounting hole, and the mounting plate and the second adapter are connected through a pin; the side of the electric push rod is provided with an electric wire, and the end of the electric wire is provided with an electric plug.

[0014] Preferably, the output end of the electric push rod is provided with a telescopic rod, the end of the telescopic rod is provided with a mounting adapter, the middle of the mounting adapter is provided with a through hole, and the mounting adapter and the second adapter plate are connected through a pin.

[0015] Preferably, it further includes a protective net, the protective net is installed at the air inlet end of the fan body, and the protective net and the fan body are detachably connected.

[0016] Preferably, the edge of the protective net is provided with a frame, the frame is provided with a plurality of connecting holes, and the protective net is fixed at the air inlet end of the fan body through the connecting holes by bolts.

[0017] Compared with the prior art, the utility model has the advantages of

[0018] 1, the utility model discloses a water ring is equipped with in the discharge end of fan body, the water that is spouted to the water ring spouts is driven by the airflow of fan, thereby reaches the effect of atomizing water, and water ring only needs to be connected with the water supply pipeline in the mine tunnel, and the operation is simple and convenient, and the separate water storage structure is not needed, and the volume of the spray fan is reduced, thereby avoiding that the spray fan occupies too much space in the mine tunnel, the fan body is hung in the inside of mine tunnel through the suspender, avoids that the spray fan falls to the ground and occupies the ground space, and the fan body is pushed by the electric push rod simultaneously, so this can adjust the inclination angle of the spray fan.

[0019] 2, the utility model discloses a protective net is set up in the air inlet of fan body, and the big block floating sundries in the inside of mine tunnel can be avoided to be sucked into the inside of fan through the protective net, so this can effectively protect the normal use of the spray fan. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model whole in the front end oblique angle of view;

[0021] Figure 2 It is the structural schematic diagram of the utility model whole in the rear end oblique angle of view;

[0022] Figure 3 It is the structural schematic diagram of the fan body of the utility model;

[0023] Figure 4 It is the structural schematic diagram of the water ring of the utility model;

[0024] Figure 5 It is the structural schematic diagram of the suspender of the utility model;

[0025] Figure 6 It is the structural schematic diagram of the electric push rod of the utility model;

[0026] Figure 7 It is the structural schematic diagram of the protective net of the utility model.

[0027] In the figure: 1, fan body; 11, first adapter plate; 12, first adapter hole; 13, second adapter plate; 14, second adapter hole; 15, mounting frame; 16, impeller; 17, bayonet; 2, water spraying ring; 21, water spraying connector; 22, fixing foot; 23, fixing hole; 24, connecting pipe; 25, connecting cap; 3, hanging rod; 31, bolt hole; 32, suspension rod; 33, first adapter; 34, first pin hole; 35, second adapter; 36, second pin hole; 4, electric push rod; 41, mounting plate; 42, mounting hole; 43, power line; 44, power plug; 45, telescopic rod; 46, mounting connector; 47, perforation; 5, protective net; 51, frame; 52, connecting hole. DETAILED DESCRIPTION

[0028] In the utility model, unless another explicit provision and limitation, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrated; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through intermediate medium, can be the communication or interaction relationship of two elements inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0029] The following further description is made in combination with the drawings and specific embodiments:

[0030] Example 1

[0031] As shown in Figure 1 , Figure 2 and Figure 4 , a mine spraying fan, comprising a fan body 1, the fan body 1 exhaust end is provided with a water spraying ring 2, the fan cooperates with the water spraying ring 2 to be convenient for spraying water mist, so as to facilitate dust setting of the dust inside the mine. The inner side of the water spraying ring 2 is provided with a plurality of water spraying connectors 21, which are inclined outward; the water spraying ring 2 and the fan body 1 are detachably connected; the water spraying connector 21 is convenient to spray water flow in the direction of inclined outward, and the water spraying ring 2 is detachable, which is convenient for replacing different specifications of the water spraying ring 2. The top of the fan body 1 is rotatably connected with a hanging rod 3, the rear end of the hanging rod 3 is provided with an electric push rod 4, the output end of the electric push rod 4 is connected with the fan body 1, the hanging rod 3 is convenient for suspending the fan body 1, and the fan body 1 is installed on the top of the inside of the mine, avoiding the space occupied by the fan body 1 on the ground of the mine. The electric push rod 4 is used for driving the fan body 1 to adjust the inclination.

[0032] As shown in Figure 3As shown, the fan body 1 is internally provided with a mounting frame 15, the mounting frame 15 is provided with a motor, and the motor output end is connected with an impeller 16; the mounting frame 15 cooperates with the motor and the impeller 16 to facilitate the airflow to flow, thereby facilitating the fan body 1 to blow out high-speed airflow. The fan body 1 is provided with a bayonet 17 at the bottom of the exhaust end, and the bayonet 17 is convenient for dismounting and mounting the water spraying ring 2. The fan body 1 is provided with a first adapter plate 11 at the top middle, and the first adapter plate 11 is provided with a first adapter hole 12 in the middle; the first adapter plate 11 and the first adapter hole 12 are convenient for the rotating connection of the fan body 1 and the boom 3. The fan body 1 is provided with a second adapter plate 13 at the top rear end, and the second adapter plate 13 is provided with a second adapter hole 14 in the middle; the second adapter plate 13 and the second adapter hole 14 are convenient for the rotating connection of the fan body 1 and the output end of the electric push rod 4, and the electric push rod 4 drives the fan body 1 to adjust the inclination angle.

[0033] As shown in the figure, Figure 4 The water spraying ring 2 is provided with a plurality of fixing feet 22 on the exhaust end of the fan body 1, and the fixing feet 22 are provided with fixing holes 23; the fixing feet 22 and the fixing holes 23 are convenient for fixing the position of the water spraying ring 2 through bolts, and convenient for the stable use of the water spraying ring 2. The water spraying ring 2 is provided with a connecting pipe 24 at the bottom end, and the connecting pipe 24 is provided with a connecting cap 25 at the end; the connecting pipe 24 and the water spraying ring 2 are connected at the bayonet 17, and the connecting pipe 24 and the connecting cap 25 are convenient for connecting the water spraying ring 2 with the water supply pipeline in the mine tunnel, thereby facilitating the water source of the water spraying ring 2 to be drained.

[0034] As shown in the figure, Figure 5 The boom 3 is provided with a plurality of bolt holes 31, and the bolt holes 31 are convenient for fixing the boom 3 through bolts. The boom 3 is provided with a suspension rod 32 at the bottom, and the boom 3 and the suspension rod 32 form a T-shaped structure, and the suspension rod 32 is convenient for rotating connection with the fan body 1. The boom 3 is provided with two second adapters 35 at the rear end, and the second adapters 35 are provided with second pin shaft holes 36 in the middle; the second adapters 35 and the second pin shaft holes 36 are convenient for cooperating with the electric push rod 4, and the top end of the electric push rod 4 is rotatably connected with the boom 3. The suspension rod 32 is provided with a first adapter 33 at the bottom end, and the first adapter 33 is in a U-shaped structure, and the first adapter 33 is provided with a first pin shaft hole 34 in the middle; the first adapter 33 and the second pin shaft hole 36 are convenient for the rotating connection of the suspension rod 32 and the fan body 1, and the fan body 1 is convenient for inclination angle adjustment.

[0035] As shown in the figure, Figure 6As shown, the top end of the electric push rod 4 is provided with a mounting plate 41, the middle part of the mounting plate 41 is provided with a mounting hole 42, and the mounting plate 41 and the second adapter 35 are connected through a pin shaft; the mounting plate 41 cooperates with the mounting hole 42 to facilitate the cooperation of the second adapter 35 and the second adapter hole 14, and the electric push rod 4 is conveniently connected with the boom 3. The side of the electric push rod 4 is provided with an electric wire 43, the end of the electric wire 43 is provided with an electric plug 44, and the electric wire 43 and the electric plug 44 are convenient for the electric push rod 4 to operate. The output end of the electric push rod 4 is provided with a telescopic rod 45, the end of the telescopic rod 45 is provided with a mounting connector 46, the middle part of the mounting connector 46 is provided with a through hole 47, and the mounting connector 46 is connected with the second adapter plate 13 through a pin shaft; this structure facilitates the output end of the electric push rod 4 to be connected with the fan body 1, and facilitates the electric push rod 4 to be telescopic and drive the fan body 1 to rotate.

[0036] Embodiment 2

[0037] As Figure 1 , Figure 2 and Figure 4 shown, a mine spraying fan, comprising a fan body 1, a water spraying ring 2 is installed at the exhaust end of the fan body 1, and the fan cooperates with the water spraying ring 2 to facilitate the spraying of water mist, thereby facilitating the dust reduction in the mine tunnel. The inside of the water spraying ring 2 is provided with a plurality of water spraying connectors 21, which are inclined outward; the water spraying ring 2 and the fan body 1 are detachably connected; the water spraying connector 21 is convenient for spraying water flow in an inclined outward direction, and the detachable water spraying ring 2 is convenient for replacing water spraying rings 2 of different specifications. The top of the fan body 1 is rotatably connected with a boom 3, the boom 3 is installed with an electric push rod 4 at the rear end, the output end of the electric push rod 4 is connected with the fan body 1, and the boom 3 is convenient for suspending the fan body 1, facilitating the installation of the fan body 1 at the top of the inside of the mine tunnel, avoiding the occupation of the space of the mine tunnel ground by the fan body 1. The electric push rod 4 is used to drive the fan body 1 to adjust the inclination angle.

[0038] As Figure 3 shown, the inside of the fan body 1 is provided with a mounting bracket 15, the mounting bracket 15 is installed with a motor, and the output end of the motor is connected with an impeller 16; the mounting bracket 15 cooperates with the motor and the impeller 16 to facilitate the flow of air flow, thereby facilitating the fan body 1 to blow high-speed airflow. The bottom of the exhaust end of the fan body 1 is provided with a bayonet 17, which is convenient for the disassembly and assembly of the water spraying ring 2. The middle part of the top end of the fan body 1 is provided with a first adapter plate 11, and the middle part of the first adapter plate 11 is provided with a first adapter hole 12; the first adapter plate 11 and the first adapter hole 12 are convenient for the fan body 1 to be rotatably connected with the boom 3. The top rear end of the fan body 1 is provided with a second adapter plate 13, the middle part of the second adapter plate 13 is provided with a second adapter hole 14, and the second adapter plate 13 and the second adapter hole 14 are convenient for the fan body 1 to be rotatably connected with the output end of the electric push rod 4, facilitating the electric push rod 4 to drive the fan body 1 to adjust the inclination angle.

[0039] As Figure 4 shown, the water spraying ring 2 is attached to the exhaust end of the fan body 1 and is provided with a plurality of fixing feet 22, and the fixing feet 22 are provided with fixing holes 23; the fixing feet 22 and the fixing holes 23 are convenient positions for fixing the water spraying ring 2 by bolts, and facilitate the stable use of the water spraying ring 2. The bottom end of the water spraying ring 2 is provided with a connecting pipe 24, and the end of the connecting pipe 24 is provided with a connecting cap 25; the position where the connecting pipe 24 and the water spraying ring 2 are connected is clamped at the bayonet 17, and the connecting pipe 24 and the connecting cap 25 are convenient for connecting the water spraying ring 2 with the water supply pipeline in the mine tunnel, thereby facilitating the drainage of the water source of the water spraying ring 2.

[0040] As Figure 5 shown, the hanger rod 3 is provided with a plurality of bolt holes 31, and the bolt holes 31 are convenient for fixing the hanger rod 3 by bolts. The bottom of the hanger rod 3 is provided with a hanging rod 32, and the hanger rod 3 and the hanging rod 32 form a T-shaped structure, and the hanging rod 32 is convenient for rotating connection with the fan body 1. The rear end of the hanger rod 3 is provided with two second adapters 35, and the middle of the second adapters 35 is provided with a second pin hole 36; the second adapters 35 and the second pin hole 36 are convenient for cooperating with the electric push rod 4, and facilitate the rotating connection of the top end of the electric push rod 4 with the hanger rod 3. The bottom end of the hanging rod 32 is provided with a first adapter 33, and the first adapter 33 is in a U-shaped structure, and the middle of the first adapter 33 is provided with a first pin hole 34; the first adapter 33 and the second pin hole 36 are convenient for rotating connection of the hanging rod 32 with the fan body 1, and facilitate the inclination adjustment of the fan body 1.

[0041] As Figure 6 shown, the top end of the electric push rod 4 is provided with a mounting plate 41, and the middle of the mounting plate 41 is provided with a mounting hole 42; the mounting plate 41 and the second adapter 35 are connected by a pin shaft; the mounting plate 41 cooperates with the mounting hole 42 to facilitate the cooperation of the second adapter 35 and the second adapter hole 14, and facilitate the rotating connection of the electric push rod 4 with the hanger rod 3. The side of the electric push rod 4 is provided with an electric wire 43, and the end of the electric wire 43 is provided with an electric plug 44; the electric wire 43 and the electric plug 44 are convenient for the electric push rod 4 to operate by electricity. The output end of the electric push rod 4 is provided with an extension rod 45, and the end of the extension rod 45 is provided with a mounting adapter 46; the middle of the mounting adapter 46 is provided with a through hole 47; the mounting adapter 46 and the second adapter plate 13 are rotatingly connected by a pin shaft; this structure facilitates the rotating connection of the output end of the electric push rod 4 with the fan body 1, and facilitates the extension of the electric push rod 4 and drives the fan body 1 to rotate.

[0042] As Figure 2 shown, it also includes a protective net 5, and the protective net 5 is installed at the air inlet end of the fan body 1; the protective net 5 and the fan body 1 are detachably connected; this structure is convenient for preventing large impurities from being sucked into the fan body by the protective net 5, and also facilitates the disassembly and assembly of the protective net 5.

[0043] As Figure 7As shown, the edge of the protective net 5 is provided with a frame 51, and a plurality of connecting holes 52 are arranged on the frame 51, and the protective net 5 is fixed at the air inlet end of the fan body 1 by bolts penetrating through the connecting holes 52; so as to stabilize the protective net 5 at the air inlet end of the fan body 1, and ensure that the protective net 5 is stably arranged inside the fan body 1.

[0044] Working principle: in use, the fan body 1 is installed at the top end inside the mine tunnel in cooperation with the suspender 3, and the installation position needs to be close to the position inside the mine tunnel where dust is prone to be generated; then the two ends of the electric push rod 4 are respectively rotatably connected with the suspender 3 and the fan body 1, and then the water spraying ring 2 is installed at the air outlet end of the fan body 1 and is fixed by bolts; then the water spraying ring 2 is connected with the water supply pipeline of the mine tunnel; at the same time, the fan body 1 is connected with power supply through wires, and the electric push rod 4 is connected with the controller and is powered on, and the controller of the electric push rod 4 is used to control the extension and retraction of the electric push rod 4, so that the electric push rod 4 drives the fan body 1 to rotate, so as to ensure that the air outlet end of the fan body 1 is aligned with the position where dust is generated, and then the electric push rod 4 is stopped, the fan is started, and water is supplied to the water spraying ring 2, so that water flows out of the water spraying ring 2, the airflow of the fan blows on the water to form water mist, so as to achieve the purpose of dust reduction.

[0045] In summary, compared with the prior art, the water spraying ring 2 is arranged at the discharge end of the fan body 1, the airflow driven by the fan blows to the water sprayed by the water spraying ring 2, so as to achieve the effect of water atomization; and the water spraying ring 2 only needs to be connected with the water supply pipeline inside the mine tunnel, which is simple and convenient to operate, does not need a separate water storage structure, reduces the size of the spray fan, thereby avoiding that the spray fan occupies too much space inside the mine tunnel, the fan body 1 is suspended inside the mine tunnel through the suspender 3, so as to avoid that the spray fan occupies the ground space when falling to the ground, and the electric push rod 4 is used to push the fan body 1, so that the inclination angle of the spray fan can be adjusted.

[0046] The preferred embodiments of the utility model have been described above, but are not used to limit the utility model, and the utility model can be changed and varied in various ways for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mine extraction spray fan comprising a fan body (1), characterised in that, The fan body (1) exhaust end is provided with a water spraying ring (2), the inner side of the water spraying ring (2) is provided with a plurality of water spraying joints (21), the water spraying joints (21) are inclined to the outside; the water spraying ring (2) and the fan body (1) are detachably connected; the top of the fan body (1) is rotatably connected with a hanging rod (3), the rear end of the hanging rod (3) is provided with an electric push rod (4), the output end of the electric push rod (4) is connected with the fan body (1), and the electric push rod (4) is used for driving the fan body (1) to adjust the inclination angle.

2. A mine extraction spray fan as claimed in claim 1 wherein, The fan body (1) is internally provided with a mounting bracket (15), the mounting bracket (15) is provided with a motor, and the output end of the motor is connected with an impeller (16); the bottom of the exhaust end of the fan body (1) is provided with a bayonet (17).

3. A mine extraction spray fan as claimed in claim 2, wherein, The top end of the fan body (1) is provided with a first adapter plate (11), the middle of the first adapter plate (11) is provided with a first adapter hole (12); the top rear end of the fan body (1) is provided with a second adapter plate (13), and the middle of the second adapter plate (13) is provided with a second adapter hole (14).

4. A mine extraction spray fan as claimed in claim 2, wherein, The water spraying ring (2) is provided with a plurality of fixing feet (22) on the exhaust end of the fan body (1), the fixing feet (22) are provided with fixing holes (23); the bottom end of the water spraying ring (2) is provided with a connecting pipe (24), the end of the connecting pipe (24) is provided with a connecting cap (25), and the connecting pipe (24) and the water spraying ring (2) are clamped at the bayonet (17).

5. A mine extraction spray fan as defined in claim 1 wherein, The hanging rod (3) is provided with a plurality of bolt holes (31), and the bottom of the hanging rod (3) is provided with a suspension rod (32), the hanging rod (3) and the suspension rod (32) form a T-shaped structure.

6. A mine extraction spray fan as claimed in claim 5 wherein, The rear end of the hanging rod (3) is provided with two second adapters (35), the middle of the second adapter (35) is provided with a second pin shaft hole (36); the bottom end of the suspension rod (32) is provided with a first adapter (33), the first adapter (33) is in a U-shaped structure, and the middle of the first adapter (33) is provided with a first pin shaft hole (34).

7. A mine extraction spray fan as claimed in claim 6 wherein, The top end of the electric push rod (4) is provided with a mounting plate (41), the middle of the mounting plate (41) is provided with a mounting hole (42), and the mounting plate (41) and the second adapter (35) are connected through a pin shaft; the side of the electric push rod (4) is provided with an electric wire (43), and the end of the electric wire (43) is provided with an electric plug (44).

8. A mine extraction spray fan as defined in claim 3 wherein, The output end of the electric push rod (4) is provided with a telescopic rod (45), the end of the telescopic rod (45) is provided with a mounting adapter (46), the middle of the mounting adapter (46) is provided with a through hole (47), and the mounting adapter (46) is rotatably connected with the second adapter plate (13) through a pin shaft.

9. A mine extraction spray fan as claimed in any one of claims 1 to 8, wherein, Further comprising a protective net (5), the protective net (5) is installed at the air inlet end of the fan body (1), and the protective net (5) and the fan body (1) are detachably connected.

10. A mine extraction spray fan as claimed in claim 9, wherein, The edge of the protective net (5) is provided with a frame (51), the frame (51) is provided with a plurality of connecting holes (52), and the protective net (5) is fixed at the air inlet end of the fan body (1) by penetrating the connecting holes (52) through bolts.

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