A movable filtering air supply and dust control system

Abstract

The present invention provides a movable filtering air supply dust control system, wherein the filtering device divides the space around the conveyor belt into a material dust control area and a worker breathing area, and the filtering device can move relative to the conveyor belt in the material conveying direction to adjust the relative positions of the material dust control area and the worker breathing area; a movable air supply pipe is installed on the side of the filtering device located in the worker breathing area, and a first connecting head is arranged on the air inlet end of the movable air supply pipe; a plurality of fixed air supply pipes are arranged above the conveyor belt and the filtering device along the material conveying direction, and a second connecting head is arranged on the air outlet end of each fixed air supply pipe, and the filtering device drives the first connecting head to move in a process in which it can be sealed and connected with a plurality of second connecting heads in sequence. The air supply pipe bundles of the present invention are of different lengths, and the air supply branch pipes can change positions according to the movement of personnel, and are highly flexible.

Description

Technical Field

[0001] The invention belongs to the field of environmental protection equipment, relates to a dust control system, and specifically relates to a movable filtering air supply dust control system. Background Art

[0002] At present, belts are mostly used to transport materials in transfer corridors. During the transportation process, due to factors such as unstable belt operation and random movement of personnel, a certain amount of dust is emitted around the conveyor belt. On the other hand, the internal environment of the transfer corridor is seriously polluted. Ventilation by opening windows alone cannot meet the personnel's demand for air supply. The air supply state is unstable and the air supply range is relatively small. The dust adhering to the personnel cannot be blown off in time, and the workers inhale a lot of dust, which affects their health.

[0003] When the traditional conveyor belt is in operation, a local closed cover is usually set on the upper part, which is connected to the traditional dust collector for dust removal. Although this method reduces the generation of dust to a certain extent, it is difficult to install and maintain, has high cost and poor flexibility. Although some dust reduction measures such as spray are set around the conveyor belt, this method is not applicable to some materials that react with the spray, and the condensation caused by the spray dust reduction falls on the conveyor belt, which is inconvenient to clean and easy to slip. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a movable filtering air supply dust control system to solve the problem of poor flexibility in reducing dust concentration in the air during material transportation in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0006] A movable filtering air supply dust control system comprises a conveyor belt mounted on a bracket, a filter device is mounted on the conveyor belt perpendicular to the material conveying direction, and the filter device divides the space around the conveyor belt into a material dust control area and a worker breathing area, the upstream of the material conveying direction is the material dust control area, and the downstream of the material conveying direction is the worker breathing area;

[0007] The filtering device comprises a filtering plate, and movable slots are respectively provided on both sides of the filtering plate, and a pair of movable slots are respectively mounted on a pair of slide rails, and the slide rails are arranged along the material conveying direction, so that the filtering device can move relative to the conveying belt in the material conveying direction, so as to adjust the relative position of the material dust control area and the worker breathing area;

[0008] The filter device is located on the side of the worker's breathing zone and is equipped with a movable air supply pipe, the air outlet end of the movable air supply pipe is provided with a movable air outlet, and the air inlet end of the movable air supply pipe is provided with a first connecting head;

[0009] A plurality of fixed air supply pipes are arranged above the conveyor belt and the filtering device along the material conveying direction. The air inlet end of each fixed air supply pipe extends outside the factory building and is connected to the air supply unit. A second connecting head is arranged on the air outlet end of each fixed air supply pipe. The plurality of second connecting heads are arranged in sequence at a plurality of positions above the conveyor belt along the opposite direction of the material conveying direction. The filtering device drives the first connecting head to move and can be sealed and connected with the plurality of second connecting heads in sequence.

[0010] The present invention also has the following technical features:

[0011] The filtering device comprises a filtering plate with filtering holes. A conveyor belt passing opening with an open bottom is provided at the middle position of the lower part of the filtering plate, and the conveyor belt passes through the conveyor belt passing opening.

[0012] The height of the conveyor belt through-port is slightly higher than the height of the material on the conveyor belt, and the width of the conveyor belt through-port is slightly larger than the width of the conveyor belt.

[0013] The first connecting head includes a first connecting flange and an attracting iron embedded in the first connecting flange, the first connecting flange is fixedly mounted on one end of the telescopic tube, and the other end of the telescopic tube is sleeved in the air inlet end of the mobile air supply pipe; a reset spring is sleeved on the telescopic tube, one end of the reset spring presses on the first connecting flange, and the other end of the reset spring presses on a retaining ring fixedly arranged on the outer wall of the air inlet end of the mobile air supply pipe; the second connecting head includes a second connecting flange fixedly connected to the air outlet end of the fixed air supply pipe and an electromagnet embedded in the second connecting flange, and the electromagnet is matched with the attracting iron.

[0014] The first connecting flange and the second connecting flange are respectively provided with corresponding rubber buffer pads.

[0015] A limiting ring is respectively arranged between the other end of the telescopic tube and the air inlet end of the movable air supply pipe.

[0016] The end surfaces of the plurality of second connecting heads are all located in the same vertical plane perpendicular to the filtering device.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] (I) The filter device and air outlet are designed in the worker's breathing area of ​​the present invention, which can not only filter out the dust adsorbed on the workers and around the conveyor belt in time, but also ensure the workers' demand for fresh air in the transfer corridor.

[0019] (II) The air supply pipe bundles of the present invention are of different lengths, and the air supply branch pipes can change positions according to the movement of personnel, with high flexibility. In addition, a connecting device is cleverly designed at the disconnection point of the air supply pipe, so that the air supply pipe can be disconnected or connected in time, while ensuring the sealing of the air supply pipe and easy disassembly.

[0020] (III) The present invention can improve the workplace environment, reduce the amount of dust inhaled by personnel working in the workplace for a long time, reduce the harm to the health of the personnel, and improve the work efficiency of the personnel.

[0021] (IV) The filter device and the movable air supply pipe of the present invention can move forward and backward in the slide rail, and are connected with air supply pipe bundles of different lengths to supply air, which can filter the dust around the conveyor belt, reduce the amount of dust generated during the transportation process, and provide fresh air for indoor personnel. This patent combines air supply pipe bundles of different lengths with the filter device, with low investment, easy disassembly, high flexibility, and has the functions of protecting the workplace environment, providing fresh air in time, and protecting the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic structural view of the filtering device of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure when the first connecting head and the second connecting head are not adsorbed.

[0025] Figure 4 It is a schematic diagram of the structure when the first connecting head and the second connecting head are adsorbed.

[0026] Figure 5 It is a structural schematic diagram of the end face of the first connecting head.

[0027] Figure 6 A structural schematic diagram of the end face of the second connecting head.

[0028] The meanings of the numbers in the figure are: 1- bracket, 2- conveyor belt, 3- filtering device, 4- material dust control area, 5- worker breathing area, 6- slide rail, 7- movable air supply pipe, 8- movable air outlet, 9- first connecting head, 10- fixed air supply pipe, 11- factory building, 12- second connecting head, 13- rubber buffer pad, 14- limiting ring, 15- air supply unit;

[0029] 301-filter plate, 302-movable card slot, 303-filter hole, 304-conveyor belt passing port;

[0030] 901-first connecting flange, 902-attracting iron, 903-telescopic tube, 904-reset spring, 905-retaining ring;

[0031] 1201-second connecting flange, 1202-electromagnet.

[0032] The specific contents of the present invention are further explained in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0033] It should be noted that, unless otherwise specified, all components in the present invention are components known in the art.

[0034] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0035] Embodiment 1:

[0036] This embodiment provides a movable filtering air supply and dust control system, such as Figures 1 to 6 As shown, it includes a conveyor belt 2 installed on a bracket 1, and a filter device 3 is installed on the conveyor belt 2 perpendicular to the material conveying direction. The filter device 3 divides the space around the conveyor belt 2 into a material dust control area 4 and a worker breathing area 5. The upstream of the material conveying direction is the material dust control area 4, and the downstream of the material conveying direction is the worker breathing area 5;

[0037] The filter device 3 includes a filter plate 301, and movable slots 302 are respectively opened on both sides of the filter plate 301. A pair of movable slots 302 are respectively mounted on a pair of slide rails 6. The slide rails 6 are arranged along the material conveying direction, so that the filter device 3 can move relative to the conveying belt 2 in the material conveying direction, so as to adjust the relative positions of the material dust control area 4 and the worker breathing area 5.

[0038] The filter device 3 is located on the side of the worker's breathing zone 5 and is provided with a mobile air supply pipe 7, the air outlet end of the mobile air supply pipe 7 is provided with a mobile air outlet 8, and the air inlet end of the mobile air supply pipe 7 is provided with a first connecting head 9;

[0039] A plurality of fixed air supply pipes 10 are arranged above the conveyor belt 2 and the filter device 3 along the material conveying direction. The air inlet end of each fixed air supply pipe 10 extends out of the factory building 11 and is connected to the air supply unit 15. A second connecting head 12 is arranged on the air outlet end of each fixed air supply pipe 10. The plurality of second connecting heads 12 are arranged in sequence at a plurality of positions above the conveyor belt 2 in the opposite direction of the material conveying direction. The filter device 3 drives the first connecting head 9 to move and can be sealed and connected with the plurality of second connecting heads 12 in sequence.

[0040] As a specific solution of this embodiment, the filter device 3 includes a filter plate 301 with filter holes 303. A conveyor belt through-hole 304 with an open bottom is provided in the middle of the lower part of the filter plate 301, and the conveyor belt 2 passes through the conveyor belt through-hole 304. The filter plate 301 with the filter holes 303 divides the space around the conveyor belt 2 into a material dust control zone 4 and a worker breathing zone 5. The dust generated when the conveyor belt 2 transports materials can be filtered through the filter plate 301, so that the dust content in the worker breathing zone 5 is much lower than that in the material dust control zone 4.

[0041] As a preferred solution of this embodiment, the height of the conveyor belt through-hole 304 is slightly higher than the height of the material on the conveyor belt 2, and the width of the conveyor belt through-hole 304 is slightly larger than the width of the conveyor belt 2. The height and width of the conveyor belt through-hole 304 are limited so that the material can pass through the conveyor belt through-hole 304, thereby preventing the material from falling, and also preventing a large amount of dust from rushing into the worker's breathing zone 5.

[0042] As a preferred scheme of this embodiment, the first connecting head 9 includes a first connecting flange 901 and an attraction iron 902 embedded in the first connecting flange 901, the first connecting flange 901 is fixedly installed at one end of the telescopic tube 903, and the other end of the telescopic tube 903 is sleeved in the air inlet end of the mobile air supply pipe 7; a reset spring 904 is sleeved on the telescopic tube 903, one end of the reset spring 904 is pressed against the first connecting flange 901, and the other end of the reset spring 904 is pressed against a baffle ring 905 fixedly set on the outer wall of the air inlet end of the mobile air supply pipe 7; the second connecting head 12 includes a second connecting flange 1201 fixedly connected to the air outlet end of the fixed air supply pipe 10 and an electromagnet 1202 embedded in the second connecting flange 1201, and the electromagnet 1202 is matched with the attraction iron 902. The provision of a first connecting flange 901 and a corresponding second connecting flange 1201 can not only ensure the sealing of the air supply pipe, but also facilitate the disassembly of the connection and facilitate maintenance and installation. The electromagnet 1202 and the matching attraction iron 902 can enable the mobile air supply pipe 7 and the fixed air supply pipe 10 to be quickly and accurately connected or disconnected. The telescopic tube 903 and the return spring 904 can compensate for the changing length of the mobile air supply pipe 7 when connected, making the connection between the mobile air supply pipe 7 and the fixed air supply pipe 10 more accurate and convenient.

[0043] As a preferred solution of this embodiment, corresponding rubber cushions 13 are respectively provided on the first connection flange 901 and the second connection flange 1201. The rubber cushions 13 can buffer the vibration of the connection between the movable air supply pipe 7 and the fixed air supply pipe 10 when the air supply unit 12 is working, thereby increasing the sealing effect.

[0044] As a preferred solution of this embodiment, a limit ring 14 is respectively arranged between the other end of the telescopic tube 903 and the air inlet end of the movable air supply tube 7. The limit ring 14 can limit the displacement of the telescopic tube 903.

[0045] As a preferred solution of this embodiment, the end faces of the plurality of second connecting heads 12 are all located in the same vertical plane perpendicular to the filter device 3. This makes the connection position of the second connecting head 12 and the first connecting head 9 more accurate and convenient, and avoids the misalignment of the first connecting head 9 and the second connecting head 12 when they are connected.

[0046] As a preferred solution of this embodiment, four fixed air supply pipes 10 are provided, which are mainly determined according to the length of the factory building 11 .

[0047] As a preferred solution of this embodiment, the movement of the filter device 3 and the movable air supply pipe 7 can be operated manually or automatically. When the automatic control method is adopted, a position sensing sensor is installed on the first connecting head 9, and the position of the first connecting head 9 is monitored by the position sensing sensor. According to the position of the first connecting head 9, it is determined whether it is aligned with the second connecting head 12. After alignment, the electromagnet 1202 on the second connecting head 12 is energized, so that the first connecting head 9 and the second connecting head 12 are sealed and connected together. At the same time, another position sensing sensor can be set to sense the position of the staff, and the motor is controlled according to the position of the staff. The motor drives the movement of the filter device 3 on the slide rail 6 to realize automatic control.

[0048] The working process of the present invention is as follows:

[0049] When transporting materials, the conveyor belt 2 rotates clockwise, and the materials move from the material dust control area 4 to the worker breathing area 5. The workers work in the worker breathing area 5. The dust generated by the material transportation is filtered and adsorbed by the filter device 3 before contacting the workers, thereby reducing the dust content in the air in the worker breathing area 5, so that the dust content in the worker breathing area 5 is much lower than that in the material dust control area 4.

[0050] While the filter device 3 is filtering dust, when the worker is standing in a certain area to work, the filter device 3 on the slide rail 6 needs to be pushed to move so that the mobile air supply pipe 7 is at the position of the nearest fixed air supply pipe 10, and the first connecting head 9 is aligned with the second connecting head 12, and then the electromagnet 1202 is energized, the attraction iron 902 in the first connecting head 9 is attracted by the electromagnet 1202 in the second connecting head 12, the telescopic tube 903 moves on the mobile air supply pipe 7, the reset spring 904 is stretched, the first connecting flange 901 and the second connecting flange 1201 are sealed and connected, so that the mobile air supply pipe 7 is connected to the fixed air supply pipe 10. The air supply unit 15 transports the clean air outside the factory building 11 to the mobile air supply pipe 7 through the fixed air supply pipe 10, and then to the worker's breathing area 5 through the mobile air outlet 8 at the outlet end of the mobile air supply pipe 7, providing fresh air for the workers, and on the other hand, blowing off the dust on the workers.

[0051] When the worker changes the working position, the electromagnet 1202 is powered off, and the reset spring 904 returns to the initial state. Under the action of the contraction force of the reset spring 904, the attraction iron 902 in the first connecting head 9 is separated from the electromagnet 1202 in the second connecting head 12, and the first connecting flange 901 and the second connecting flange 1201 are separated, so that the movable air supply pipe 7 is separated from the fixed air supply pipe 10. Then, by pushing the filter device 3 to move on the slide rail 6, the movable air supply pipe 7 is connected to the fixed air supply pipe 10 at the position corresponding to the working position, so as to realize movable and flexible dust control.

Claims

1. A movable filtering air supply and dust control system, comprising a conveyor belt (2) mounted on a bracket (1), characterized in that: A filtering device (3) is installed on the conveyor belt (2) perpendicular to the material conveying direction. The filtering device (3) divides the space around the conveyor belt (2) into a material dust control zone (4) and a worker breathing zone (5). The upstream in the material conveying direction is the material dust control zone (4), and the downstream in the material conveying direction is the worker breathing zone (5). The filtering device (3) comprises a filtering plate (301), and movable slots (302) are respectively provided on both sides of the filtering plate (301), and a pair of movable slots (302) are respectively mounted on a pair of slide rails (6), and the slide rails (6) are arranged along the material conveying direction, so that the filtering device (3) can move relative to the conveying belt (2) in the material conveying direction, thereby realizing the adjustment of the relative position of the material dust control area (4) and the worker breathing area (5); The filter device (3) is provided with a movable air supply pipe (7) on the side of the worker's breathing zone (5), a movable air outlet (8) is provided on the air outlet end of the movable air supply pipe (7), and a first connecting head (9) is provided on the air inlet end of the movable air supply pipe (7); A plurality of fixed air supply pipes (10) are arranged above the conveyor belt (2) and the filter device (3) along the material conveying direction. The air inlet end of each fixed air supply pipe (10) extends outside the factory building (11) and is connected to the air supply unit (15). A second connecting head (12) is arranged on the air outlet end of each fixed air supply pipe (10). The plurality of second connecting heads (12) are arranged in sequence at a plurality of positions above the conveyor belt (2) in the opposite direction to the material conveying direction. The filter device (3) drives the first connecting head (9) to move and can be sealed and connected with the plurality of second connecting heads (12) in sequence. The filtering device (3) comprises a filtering plate (301) with filtering holes (303); a conveyor belt passing opening (304) with an open bottom is provided at the middle of the lower portion of the filtering plate (301); and the conveyor belt (2) passes through the conveyor belt passing opening (304); The first connecting head (9) comprises a first connecting flange (901) and an attracting iron (902) embedded in the first connecting flange (901); the first connecting flange (901) is fixedly mounted on one end of a telescopic tube (903); the other end of the telescopic tube (903) is sleeved in the air inlet end of the mobile air supply pipe (7); a return spring (904) is sleeved on the telescopic tube (903); one end of the return spring (904) presses against the first connecting flange (901); the other end of the return spring (904) presses against a retaining ring (905) fixedly arranged on the outer wall of the air inlet end of the mobile air supply pipe (7); the second connecting head (12) comprises a second connecting flange (1201) fixedly connected to the air outlet end of the fixed air supply pipe (10) and an electromagnet (1202) embedded in the second connecting flange (1201); the electromagnet (1202) and the attracting iron (902) are arranged in a matching manner.

2. The movable filtering air supply and dust control system according to claim 1, characterized in that: The height of the conveyor belt passage opening (304) is slightly higher than the height of the material on the conveyor belt (2), and the width of the conveyor belt passage opening (304) is slightly greater than the width of the conveyor belt (2).

3. The movable filtering air supply and dust control system according to claim 1, characterized in that: Corresponding rubber buffer pads (13) are respectively provided on the first connecting flange (901) and the second connecting flange (1201).

4. The movable filtering air supply and dust control system according to claim 1, characterized in that: A limiting ring (14) is respectively provided between the other end of the telescopic tube (903) and the air inlet end of the movable air supply pipe (7).

5. The movable filtering air supply and dust control system according to claim 1, characterized in that: The end surfaces of the plurality of second connecting heads (12) are all located in the same vertical plane perpendicular to the filter device (3).

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