CN111963231A - Mining air door in pit - Google Patents

Abstract

The invention provides an underground mine air door, which includes a door panel installed on a roadway, the door panel closes the upper, left and right sides of the roadway when closed, and the gap between the door panel and the ground is larger than the track laid on the roadway floor the height of the door panel; the closing position of the door panel is set between the two sleepers of the track; it also includes: a sealing panel installed at the lower part of the door panel, the width of the sealing panel is equal to the door panel, and the height is greater than the The height of the gap between the door panel and the ground; the lifting device is provided with the door panel, and the lifting device is connected to fix the sealing plate; the controller is connected to control the lifting device; the escape port is arranged under the sealing plate, so The length of the escape port is greater than the thickness of a single rail of the track; the two escape ports are matched with the rail of the track; the present invention can also be well sealed where there are tracks, and the toxic and harmful gases are limited in local areas. area, in order to effectively prevent personal poisoning and casualties.

Description

An underground mine damper

technical field

The invention relates to an underground mine air door.

Background technique

70% of metal deposits in my country are mined by underground mining, which is relatively dangerous, and poisoning and suffocation accidents have always been a frequent accident in underground mining in non-coal mines; do well in mine ventilation and build efficient underground intelligent ventilation structures It is the key to effectively prevent all kinds of ventilation-related accidents; the damper is an important facility of the mine ventilation system. First, it can prevent a large number of toxic and harmful gases from invading and spreading to other well-ventilated workplaces. , limit the toxic and harmful gases to local areas, and then introduce the toxic and harmful gases into the return air lane of the ventilation system to effectively prevent casualties caused by personnel poisoning; second, the air flow adjustment function can be realized by opening or closing the damper.

At present, the damper can be well sealed where there is no track, but where there is a track, if the damper is close to the ground, it will be blocked by the track and cannot be closed when the door is closed. Therefore, there is a gap between the damper and the ground (the height of the track), which cannot be reached. If the air door is close to the ground, the track at the air door needs to be dismantled and removed every time the door is closed, and the track will be put back after the door is opened, which will greatly increase the workload of the operator.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned defects, and to provide an underground mine air door that can achieve an effective sealing effect even at the rail and is easy to operate.

The present invention adopts the following technical solutions:

An underground mine air door, comprising a door panel installed on a roadway, when the door panel is closed, the upper, left and right sides of the roadway are closed, and the gap between the door panel and the ground is greater than the height of the track laid on the roadway ground; The door closing position of the door panel is set between the two sleepers of the track; it also includes: a sealing panel installed at the lower part of the door panel, the width of the sealing panel is equal to that of the door panel, and the height is greater than that of the door panel and the ground The height of the gap between them; a lifting device, which is provided with a door panel, and the lifting device is connected and fixed to the sealing plate; a controller, which is connected to control the lifting device; The length is greater than the thickness of a single rail of the track; the two escape openings are matched with the rail of the track.

Preferably, a first cavity is arranged under the door panel; the sealing plate is arranged in the first cavity; and the lifting device is installed on both sides of the interior of the door panel.

Preferably, the lifting device is a hydraulic rod or a pneumatic rod.

Preferably, the door panel is installed on the roadway through a linkage device, and the linkage device includes: a fixed gear, installed on the side of the roadway; a rolling secondary wheel, located on the side of the door panel, and the fixed gear The gear is connected to the shaft, movably connecting the shaft center of the fixed gear and the shaft center of the rolling secondary wheel; the first motor, fixed on the side of the door panel, is connected to drive the rolling secondary wheel, and the first motor is connected to the The controller; the controller is a PLC controller; with this design, a two-way door can be realized.

Preferably, the door panel is further provided with a pedestrian door; a second cavity, located in the door panel on the side of the pedestrian door, is used for accommodating the pedestrian door when it moves sideways; a side shifting device controls the sidewalk of the pedestrian door .

Preferably, the side shifting device comprises: a motor guide rail, which is fixed on the inside of the door panel; a second motor is installed on the motor guide rail through a motor mounting frame, and the pedestrian door is fixed under the motor mounting frame; a gear is connected to The second motor is driven; the rack is installed and fixed on the inside of the door panel, and is matched with the gear; the second motor is connected to the controller.

Preferably, the controller is a PLC controller.

The door closing position of the door panel is set between the two sleepers of the track, avoiding the sleepers, so that the avoidance opening of the sealing plate only needs to avoid the rail and can be in close contact with the ground.

The beneficial effects of the present invention are as follows: the damper of the present invention can also be well sealed at the track, effectively preventing the intrusion and spread of toxic and harmful gases to other well-ventilated work sites, limiting the toxic and harmful gases to local areas, and further reducing the toxic and harmful gases. Harmful gases are introduced into the ventilation system return airway to effectively prevent personnel poisoning and casualties. In addition, although the mine has installed a simple damper in the parallel roadway of the fan in the power station to prevent short-circuit air leakage, the damper can only be opened manually. It takes a lot of force to open the damper (the greater the pressure difference on both sides of the damper, the greater the force to open the door), which increases the manual physical exertion, and the damper of the present invention can be selected according to the pressure on both sides of the door. Open the door; the air door can be automatically opened and closed remotely through PLC control, which reduces the labor intensity of manually opening and closing the door, and can also quickly control the opening and closing of the air door according to the needs of the production site, thereby improving production efficiency.

Description of drawings

Figure 1 is a schematic diagram of the present invention.

FIG. 2 is a cross-sectional view of the present invention.

Fig. 3 is a partial schematic diagram of the present invention

FIG. 4 is a schematic diagram of the linkage device of the present invention.

FIG. 5 is a schematic diagram of the side shifting device of the present invention.

Detailed ways

In order to make the purpose and technical scheme of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings and embodiments:

As shown in FIG. 1 to FIG. 3 , the air door for underground mines, the closing position of the door panel 2 is set between the two sleepers of the track; it includes a door panel 2 installed on the roadway 1, and the door panel 2 is closed when closed. On the upper, left and right sides of the roadway 1, the gap between the door panel 2 and the ground is greater than the height of the track 3 laid on the roadway ground; it also includes: a first cavity 21, located below the door panel 2; a sealing plate 4. Set in the first cavity 21, the width of the sealing plate 4 is equal to that of the door panel 2, and the height is greater than the height of the gap between the door panel 2 and the ground; the lifting device 5 is provided with two door panels 2; side, the lifting device 5 is connected and fixed to the sealing plate 4; a controller (not shown in the figure) is connected to control the lifting device 5; an escape port 41 is arranged under the sealing plate 4, and the escape port The length is greater than the thickness of a single rail of the rail 3; the two escape openings are matched with the rail of the rail, so that when the sealing plate 4 falls, it can enter the rail in the middle and stick to the rail, and both sides can be close to the ground, reaching sealing effect.

Preferably, the lifting device 5 is a hydraulic rod or a pneumatic rod.

Preferably, as shown in FIG. 4 , the door panel 2 is installed on the roadway through a linkage device 6, and the linkage device includes: a fixed gear 61, installed on the side of the roadway 1; a rolling secondary wheel 62, located at the The side of the door panel 2 is matched with the fixed gear 61; the gear connecting shaft 63 movably connects the axis of the fixed gear 61 and the axis of the rolling secondary wheel 62, so that the rolling secondary wheel 62 always rotates around the fixed gear 61 The first motor 71, which can be rotated forward and reverse, is fixed on the side of the door panel, and is connected to drive the rolling secondary wheel 62, and the first motor 71 is connected to the controller; using this design, it is possible to realize two-way door opening .

Preferably, as shown in FIG. 2, the door panel 2 is further provided with a pedestrian door 8; the second cavity 22 is located in the door panel 2 on the side of the pedestrian door 8, and is used for accommodating the pedestrian door 8 during lateral movement. ; Side shift device, controlling the side shift of the pedestrian door.

Preferably, as shown in FIG. 5 , the side shifting device includes: a motor guide rail 93 , which is fixed on the inside of the door panel 2 ; the second motor 72 is installed on the motor guide rail 93 through a motor mounting frame 94 , and the motor is installed on the motor guide rail 93 . The pedestrian door 8 is fixed under the frame 94; the gear 92 is connected to drive the second motor 72; the rack 91; Controller; the second motor 72 can rotate in forward and reverse directions. When activated, it drives the gear 92 to rotate, and cooperates with the rack 91 to make the motor mounting frame move on the motor guide rail 93, thereby driving the pedestrian door 8 to open and close.

Preferably, the controller is a PLC controller.

The sealing plate 4 can also be installed outside the door plate, and the hydraulic rod or the air pressure rod can also be installed and fixed outside the door plate to lift and lower the sealing plate.

The door closing position of the door panel 2 is located between the two sleepers of the track, avoiding the sleepers, so that the escape opening of the sealing plate 4 only needs to avoid the rail to be close to the ground.

The use process of the present invention is:

When the door is closed, the first motor 71 is activated according to the position of the door panel, and the secondary wheel 62 is driven to rotate around the fixed gear 61 until the door panel closes the roadway. At this time, the sealing plate 4 is located directly above the track 3, and the two escape openings 41 are respectively located on the track. Just above the two rails, the lifting device 5 starts to work to drop the sealing plate.

When the door is opened, the lifting device 5 starts to work, and the sealing plate is raised until it is flush with the bottom plate of the door plate 2. According to the pressure difference between the two sides of the door plate, the first motor is started to drive the rolling secondary wheel 62 to rotate around the fixed gear 61 until the pressure The smaller one opens the door panel 2 so that the vehicle can travel on the track 3 of the roadway 1 .

When the door is normally closed, pedestrians temporarily pass through without opening the whole door, and the second motor 72 can be activated, so that the pedestrian door 8 enters the second cavity 22, and pedestrians can pass through the middle of the door panel 2, which is more convenient for on-site construction.

In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The components used in the present invention are all common standard components or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or through conventional experimental methods, such as PLC connection to control the motor, hydraulic pressure rod, way of the pneumatic rod, etc.

The above are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the present invention. The scope of protection of the invention.

Claims (8)

1. An underground mine air door, comprising a door panel installed on a roadway, when the door panel is closed, the upper, left and right sides of the roadway are closed, and the gap between the door panel and the ground is greater than that of the track laid on the roadway ground. height; characterized by: The door closing position of the door panel is set between the two sleepers of the track; The sealing plate is installed at the lower part of the door panel, the width of the sealing plate is equal to that of the door panel, and the height is greater than the height of the gap between the door panel and the ground; A lifting device is provided with a door plate, and the lifting device is connected to fix the sealing plate; a controller, connected to control the lifting device; An escape port is arranged below the sealing plate, and the length of the escape port is greater than the thickness of a single rail of the track; the two escape ports are matched with the rail of the track. 2. a kind of underground mine air door according to claim 1 is characterized in that: A first cavity is provided below the door panel; the sealing plate is arranged in the first cavity; The lifting devices are installed on both sides of the interior of the door panel. 3. a kind of underground mine air door according to claim 1 and 2 is characterized in that: The lifting device is a hydraulic rod or a pneumatic rod. 4. a kind of underground mine air door according to claim 1 and 2 is characterized in that: The door panel is installed on the roadway through a linkage device, and the linkage device includes: A fixed gear is installed on the side of the roadway; A rolling secondary wheel, located on the side of the door panel, cooperates with the fixed gear; The gear is connected to the shaft, which movably connects the shaft center of the fixed gear and the shaft center of the rolling secondary wheel; a first motor, fixed on the side of the door panel, connected to drive the rolling secondary wheel, and the first motor is connected to the controller; The controller is a PLC controller. 5. a kind of underground mine air door according to claim 1 and 2 is characterized in that: The door panel is also provided with a pedestrian door; The second cavity is located in the door panel on the side of the pedestrian door, and is used for accommodating the pedestrian door when it is moved sideways; The side shift device controls the side shift of the pedestrian door. 6. An underground mine air door according to claim 5, wherein the side shifting device comprises: The motor guide rail is fixed above the interior of the door panel; The second motor is mounted on the motor guide rail through a motor mounting frame, and the pedestrian door is fixed under the motor mounting frame; The gear is connected to drive the second motor; A rack; installed and fixed above the interior of the door panel, and matched with the gear; The second motor is connected to the controller. 7. a kind of underground mine air door according to claim 6 is characterized in that: The controller is a PLC controller. 8. a kind of underground mine air door according to claim 1 and 2 is characterized in that: The controller is a PLC controller.

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