MINE VENTILATION DOOR WITH WINGS AND SLIDABLE OR POCKET PERSONNEL DOOR
20170037676 ยท 2017-02-09
Inventors
Cpc classification
E05Y2201/62
FIXED CONSTRUCTIONS
E06B5/00
FIXED CONSTRUCTIONS
E05F15/73
FIXED CONSTRUCTIONS
E05Y2400/44
FIXED CONSTRUCTIONS
E05D15/0621
FIXED CONSTRUCTIONS
E05F15/40
FIXED CONSTRUCTIONS
E05Y2999/00
FIXED CONSTRUCTIONS
International classification
E06B5/00
FIXED CONSTRUCTIONS
E06B3/36
FIXED CONSTRUCTIONS
E05D15/06
FIXED CONSTRUCTIONS
E05F17/00
FIXED CONSTRUCTIONS
Abstract
A personnel access door assembly of an opposing wing of a mine ventilation door. The personnel access door includes a frame including a top portion, a bottom portion, a first post portion and a second post portion, the top frame portion and the bottom frame portion coupled to respective top and bottom ends of the first post and second post portions. The personnel access door further includes sets of trolley wheels affixed to the top or bottom of the frame to engage a top rail or bottom rail affixed on the opposing wing.
Claims
1. A personnel access door assembly of at least one opposing wing of an associated mine ventilation door, comprising: a personnel access door including: a frame including a top portion, a bottom portion, a first post portion and a second post portion, the top frame portion and the bottom frame portion coupled to respective top and bottom ends of the first post and second post portions, and at least one set of casters or rollers affixed to at least one of the bottom portion or the top portion of the frame; a top rail affixed to the at least one opposing wing, the top rail parallel to a top and bottom of the at least one opposing wing, the top rail configured to slideably engage the at least one set of casters or rollers; and a bottom rail affixed parallel to the bottom of the at least one opposing wing, the bottom rail and the top rail configured to slideably engage the at least one set of casters or rollers.
2. The personnel access door assembly of claim 1, wherein the personnel access door further comprises a set of parallel crossbeams coupled to the first and second posts of the frame, the crossbeams positioned equidistant from each other and the top and bottom frame portions.
3. The personnel access door assembly of claim 2, wherein the personnel access door further comprises a skin covering the frame portions.
4. The personnel access door assembly of claim 3, wherein the skin comprises a suitable gauge metal.
5. The personnel access door assembly of claim 4, wherein the skin includes a window.
6. The personnel access door assembly of claim 2, wherein the bottom rail comprises a plurality of separate guides configured to hold the personnel access door to the wing of the associated mine ventilation door.
7. The personnel access door assembly of claim 2, wherein the personnel access door is located adjacent to a bottom of the wing.
8. The personnel access door assembly of claim 2, further comprising at least one sensor affixed to the wing in proximity to the personnel access door, the sensor configured to sense at least one of an opening and a closing of the personnel access door.
9. The personnel access door assembly of claim 2, wherein the personnel access door further comprises a handle affixed to the personnel access door.
10. The personnel access door assembly of claim 9, wherein the handle is a recessed handle.
11. The personnel access door assembly of claim 2, wherein the frame portions and crossbeams comprise tubular steel.
12. The personnel access door assembly of claim 2, wherein the personnel access door is sized larger than the size of an opening in the associated wing, the opening comprising a path there through.
13. A high-pressure mine door assembly, comprising: a frame including a cap frame portion, a sill frame portion, a first post frame portion and a second post frame portion, the cap frame portion and the sill frame portion coupled to respective top and bottom ends of the first post frame and second post frame portions; a major wing pivotally coupled to the cap frame portion via a major cap bearing and the sill frame portion via a major sill bearing, the major wing including a major hub located adjacent to the major cap bearing; a minor wing pivotally coupled to the cap frame portion via a minor cap bearing and the sill frame portion via a minor sill bearing, the minor wing including a minor hub located adjacent to the minor cap bearing; a connecting bar having a first end moveably coupled to the major hub and a second end moveably coupled to the minor hub; and a single drive assembly operatively coupled to the connecting bar and configured to rotate the major and minor wings of the mine door assembly in opposing directions.
14. The high-pressure door of claim 13, wherein the single drive assembly is mounted in parallel with the connecting bar across the top of the door, the drive assembly applying force so as to open and close the wings of the door.
15. The high-pressure door of claim 14, wherein the single drive assembly is secured to the top frame component and operatively coupled to a pivot on the connecting bar above the major wing.
16. The high-pressure door of claim 15, wherein the single drive assembly is at least one of a pneumatic drive, an electric drive, a hydraulic drive, or a manual drive.
17. The high-pressure door of claim 16, wherein the single drive assembly is attached to the cap frame portion via a removable pin.
18. The high-pressure door of claim 16, wherein the single drive assembly is attached to the connecting bar via a removable pin.
19. The high-pressure door of claim 13, further comprising: at least one sensor operative to sense operations of the high-pressure mine door; and a control system in communication with the at least one sensor, the control system comprising: a processor; a sensor analysis component in communication with the processor, the sensor analysis component configured to receive sensor data from the at least one sensor; memory in communication with the processor, the memory storing instructions which are executed by the processor for: receiving sensor input from the at least one sensor corresponding to at least one of a position of the major wing or minor wing and a path through the high-pressure mine door; determining a predefined action in accordance with received sensor input; and operating the single drive assembly associated with the high-pressure mine door in accordance with the determined predefined action responsive to the received sensor input.
20. The high-pressure mine door of claim 19, wherein the processor comprises a programmable logic controller.
21. The high-pressure mine door of claim 19, wherein the control system further comprises at least one timer, the at least one timer configured to output a duration to the processor indicative of the at least one predefined action.
22. The high-pressure mine door of claim 21, wherein the at least one predetermined action is selected from the group consisting of an opening, a closing, and a transiting corresponding to the high-pressure mine door.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The following is a brief description of the drawings, which are presented for the purposes of illustrating exemplary embodiments disclosed herein and not for the purposes of limiting the same.
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DESCRIPTION
[0045] One or more implementations of the subject application will now be described with reference to the attached drawings, wherein like reference numerals are used to refer to like elements throughout.
[0046] Turning now to
[0047] Also illustrated in
[0048] The wings 101-102 may further include seals, gaskets, or the like, to prevent airflow from circumventing the door assembly 100. Expanded views of these components are also illustrated in
[0049] As depicted in
[0050]
[0051] Pairs of such high-pressure door assemblies 100 may be emplaced in a mine shaft so as to facilitate the formation of an airlock there between. Such an airlock may be used to prevent outgassing or in gassing to unused portions of a mine, to prevent dust accumulation in non-working sites, to send air to the face of the mine (where current mining is occurring), to control the amount of airflow through the shaft, or the like. For example, a mine operator may want to restrict the flow of air to a certain portion of the mine, but may still need to get equipment through. In order to facilitate this traffic, the airlock is formed of a set of two or more door assemblies. One door will open while the other remains closed. Once the traffic has transited the open door, that door will close following which the next door opens. Previous mine doors made this a long and arduous process. In contrast, the orientation and design of the subject high-pressure mine door assembly 100 facilitates faster opening and closing, while also making such opening easier to accomplish due to the opposing wing design, i.e., one door wing comes forward and the other door wing goes backwards in synchronization via the connecting bar 113.
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[0053] As illustrated in
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[0055] As shown in
[0056] When the top slide rail 216 is configured to interact with the trolley wheels 218, the bottom rail 217 functions as a guide to keep the personnel access door 210 flush with the surface of the wing 101 or 102 so as to preserve the air-flow functionality of the ventilation door assembly 100 when closed. Accordingly, the trolley wheels 218 may be on the bottom rail 217 while the top rail 216 functions as a guide rail. Alternatively, several small guides may be used in place of the bottom rail 217.
[0057] Depending upon implementation, the personnel access door 210 may be located adjacent to the bottom of the wing 101 or 102, i.e. the sill 104, or slightly elevated, e.g. above the bottom of the wing 101 or 102. One or more sensors (not shown) may be placed in proximity to the personnel access door 210 so as to provide feedback and information as to when the door 210 is opened, closed, the number of miners transiting the door 210, and the like. In one embodiment, the sensors may provide this information to a display associated with the mine door assembly 100, to a control system proximal or remote to the door assembly 100, and the like.
[0058] In some embodiments, as depicted in
[0059] According to one embodiment, the personnel access door 210 is dimensioned to extend a predetermined distance around an opening 219 in the wing 101 or 102. Such dimensioning may allow the rails 216 and 217 to be suitably placed above and below the opening 219, preventing airflow in either direction from damaging the door 210, jamming the door 210 so as to stop it opening or closing, and the like. As depicted in
[0060] It will be appreciated that the dimensions of the personnel access door 210 is dependent upon the size of the mine door assembly 100, e.g., for smaller door assemblies, the personnel access door 210 may be dimensioned such that a miner may be required to crouch or crawl through to make passage. In other embodiments, the width of the personnel access door 210 may be constrained due to the width of the wing 101 or 102 as well as working door pressure, e.g., at very high pressures, the door 210 may be dimensioned accordingly to prevent loss of structural integrity of the door 210 and the wing 101 or 102 to which the door 210 is affixed. In one example embodiment, the personnel access door 210 is 2.5 wide4 feet high and located approximately 18 inches above the sill 104. Variations on these dimensions and locations may be made in accordance with the embodiments disclosed herein.
[0061] In accordance with other embodiments, the top rail 216 and the bottom rail 217 extend at least double the width of the personnel access door 210 so as to allow the door 210 to slide sufficiently to the side to allow full clearance of the opening 219 in the wing 101 or 102. One or more bump-stops may be positioned on the rails 216 and 217 so as to prevent the personnel access door 210 from sliding off the rails 216 and 217 in either direction. A handle may also be affixed to the door 210 to provide a point of contact for personnel. In such an implementation, the handle may be recessed within the skin so as not to interfere with the opening of the door 210 by miners.
[0062] In still other embodiments, such as the fully closed personnel access door 210 of
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[0064] According to one embodiment, the personnel access door 210 is a pocket-style door, wherein the rails 216 and 217 are located internal to the wing 101 or 102 to which the door 210 is affixed. In such an embodiment, the door 210 may slide inside the wing 101 or 102 so as to allow transit of miners, equipment, etc., through the ventilation door 100 without requiring the large ventilation door 100 to open.
[0065] In some embodiments, the high-pressure door includes at least one sensor operative to detect at least one of a vehicle, minor, control signal, or the like, so as to initiate an opening cycle. In such an embodiment, the door may include one or more sensors configured to detect any obstruction in the path of the wings or in the shaft so as to prevent the wings from closing. In one embodiment, the sensors comprise a pair of sonic sensors, wherein the tripping of a first sensor (in either direction) directs the opening of the door assembly 100, and the tripping of a second sensor (located on an opposing side of the door assembly 100 and facing the opposite direction of the first sensor) directs the closing of the door assembly 100. Other sensors may also be implemented, e.g., a motion sensor operable to detect an object, person, or the like transiting the door assembly 100, as discussed in greater detail herein.
[0066] Other embodiments may utilize and automated or remote control system, which uses preprogrammed instructions, receives various sensor inputs, or a combination thereof, to open and close the wings 101-102 of the door assembly 100. For example, pull cords, push buttons, infrared or RF controls, proximity sensors, pressure sensors, manual, etc., may be used in operating the door assembly. In one embodiment, cap lamp sensors are used to facilitate the opening and closing of the door assembly 100, i.e., sensors used to detect the presence of a miner using a transmitter or other device embedded or affixed to a mining helmet, light source, etc.
[0067] The assembly 100 may further include a control system that is configured to control the operation of the assembly 100 in accordance with data received from sensors, programs, manual input, and the like. In such an embodiment, the control system may activate the drive mechanism 112 so as to open the wings 101-102 and allow transiting through the assembly 100, or close the wings 101-102 to prevent airflow from transiting the assembly 100. The control system may be proximally located with respect to the assembly 100, or remotely located therefrom, e.g., above-ground. In embodiments wherein the control system is located proximal to the mine door assembly 100, information and/or data related to the operation of the assembly 100 may be communicated to a remote location via Ethernet, wireless, RF, wired, or other communication means. In some other embodiments, the control system may include manual bypasses allowing operation of the doors when power, air supply, or hydraulics fail.
[0068] The present disclosure has been described with reference to exemplary embodiments. Obviously, modifications and alterations will occur to others upon reading and understanding the preceding detailed description. It is intended that the present disclosure be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.