CN108423529B - Main shaft bottom coal pile protection monitoring device - Google Patents
Main shaft bottom coal pile protection monitoring device Download PDFInfo
- Publication number
- CN108423529B CN108423529B CN201810457567.XA CN201810457567A CN108423529B CN 108423529 B CN108423529 B CN 108423529B CN 201810457567 A CN201810457567 A CN 201810457567A CN 108423529 B CN108423529 B CN 108423529B
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- CN
- China
- Prior art keywords
- longitudinal rod
- magnetic induction
- normally open
- open switch
- permanent magnet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/06—Applications of signalling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
- B66B5/025—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system where the abnormal operating condition is caused by human behaviour or misbehaviour, e.g. forcing the doors
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention relates to a main well bottom coal pile protection monitoring device. The existing bottom hole coal pile monitoring device is easy to break down. Therefore, the main underground coal pile protection monitoring device comprises an audible and visual alarm loop and a base frame, and further comprises a permanent magnet, a magnetic induction normally open switch and a lever frame, wherein the permanent magnet and the magnetic induction normally open switch are oppositely arranged on the base frame, a magnetic shielding plate is arranged between the permanent magnet and the magnetic induction normally open switch, the lever frame comprises a transverse shaft, two ends of the transverse shaft are respectively and rotatably fixed on the base frame through two bearings, a front longitudinal rod and a rear longitudinal rod are respectively and fixedly connected in the middle section of the transverse shaft, the front longitudinal rod extends between the permanent magnet and the magnetic induction normally open switch, the rear longitudinal rod points to the obliquely lower side, the magnetic shielding plate is fixed on the front longitudinal rod, the lower end of the rear longitudinal rod is connected with an air plate, the magnetic induction normally open switch is connected in series with the audible and visual alarm loop, and the air plate is arranged at the windward position of a roadway below a matched coal leakage port. The main shaft bottom coal pile protection monitoring device has simple structure, is suitable for working near a coal leakage port with high humidity and high dust, and is suitable for various large coal mines.
Description
Technical Field
The invention relates to a main well bottom coal pile protection monitoring device.
Background
In general, coal is lifted from a main shaft, and when the main shaft hoist is subjected to human errors or sudden conditions, namely, the conditions of over-loading of a skip, carbon scattering at a coal sliding port, loose closing of a skip door and the like, too much coal is piled at the bottom of the shaft, the tail rope of the hoist is twisted and lifted, and severe accidents such as the main shaft hoist shaft equipment and the tail rope of the hoist are pulled out and broken are caused.
The invention patent of China published in 2012, 04 and 04 discloses a main shaft hoist shaft bottom coal pile monitoring device, which is a safety monitoring technical measure for respectively monitoring the shaft bottom coal pile height, position and shaft bottom coal scattering hopper blocking condition of a main shaft hoist by using a material level instrument, a coal level relay and an air speed sensor, carrying out calculation processing by a coal pile monitoring center, alarming and controlling, and preventing the hoist tail rope from being twisted and supported by too much shaft bottom coal pile, pulling out shaft equipment facilities of the main shaft hoist and pulling out the hoist tail rope under human error or sudden conditions. And (3) triple sampling of the height and the position of the coal pile at the bottom of the main well hoist and the blocking condition of a coal scattering hopper at the bottom of the main well hoist, redundancy treatment and alarm and control are respectively implemented.
However, because the main lost circulation coal hole is moist, wind is large, water spray is large, coal particles are large, and the like, the environment is bad, and the wind speed sensor frequently fails.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a main well bottom coal pile protection monitoring device.
For solving above-mentioned technical problem, this main shaft bottom coal pile protection monitoring devices includes audible and visual alarm return circuit and bed frame, its characterized in that: the magnetic induction type coal leakage alarm device is characterized by further comprising a permanent magnet, a magnetic induction normally open switch and a lever frame, wherein the permanent magnet and the magnetic induction normally open switch are oppositely arranged on the base frame, a magnetic shielding plate is arranged between the permanent magnet and the magnetic induction normally open switch, the lever frame comprises a transverse shaft, two ends of the transverse shaft are respectively and rotatably fixed on the base frame through two bearings, a front longitudinal rod and a rear longitudinal rod are respectively and fixedly connected to the middle section of the transverse shaft, the front longitudinal rod extends between the permanent magnet and the magnetic induction normally open switch, the rear longitudinal rod points to the inclined lower side, the magnetic shielding plate is fixed on the front longitudinal rod, the lower end of the rear longitudinal rod is connected with an air plate, the magnetic induction normally open switch is connected into the acousto-optic alarm loop in a serial manner, and the air plate is arranged at the windward position of a roadway below the matched coal leakage port.
Under the condition that a main shaft bottom is unobstructed, wind at two ends of a coal leakage port is quite large. However, when the main well hoist has too much coal pile at the bottom of the well under the condition of human error or burst, the coal leakage opening at the lower part can be blocked, and the coal leakage opening is not blown from the well shaft.
When the coal leakage port is matched normally, wind from the main well is blown onto the wind plate normally, the front longitudinal rod is pressed down, the magnetic shielding plate on the front longitudinal rod is inserted between the permanent magnet and the magnetic induction normally open switch, the magnetic induction normally open switch cannot sense magnetism of the permanent magnet, and the magnetic induction normally open switch is in a disconnected state and does not touch the audible and visual alarm loop.
On the contrary, when the coal leakage port is blocked and is not blown or blown, the air plate is pressed down under the influence of gravity, the front longitudinal rod is tilted, the magnetic shielding plate is separated from the space between the permanent magnet and the magnetic induction normally open switch, the magnetic induction normally open switch is triggered to be closed by the permanent magnet, the audible and visual alarm loop is triggered, and an alarm is sent, so that a worker can check and treat equipment in time, and accidents are avoided.
Preferably, the rear longitudinal bar is formed by two parts hinged to each other, and the hinge shaft is a screw bolt capable of being screwed. By the design, the angle of the air plate can be adjusted.
The main shaft bottom coal pile protection monitoring device has a simple structure, is suitable for working near a high-humidity and high-dust coal leakage port, and is suitable for various large coal mines.
Drawings
The main shaft bottom coal pile protection monitoring device of the invention is further described below with reference to the accompanying drawings:
fig. 1 is a schematic diagram of the three-dimensional structure of the main shaft bottom coal pile protection monitoring device.
In the figure: the device comprises a base frame 1, a permanent magnet 2, a magnetic induction normally open switch 3, a magnetic shielding plate 4, a transverse shaft 5, a front longitudinal rod 6, a rear longitudinal rod 7, an air plate 8, a screw bolt 9 which can be screwed, and an air plate counterweight adjusting hole 10.
Detailed Description
Embodiment one: as shown in fig. 1, the main shaft bottom coal pile protection monitoring device comprises an audible and visual alarm loop (not shown in the figure) and a base frame 1, and is characterized in that: the magnetic shielding device is characterized by further comprising a permanent magnet 2, a magnetic induction normally open switch 3 and a lever frame, wherein the permanent magnet 2 and the magnetic induction normally open switch 3 are oppositely arranged on the base frame 1, a magnetic shielding plate 4 is arranged between the permanent magnet 2 and the magnetic induction normally open switch 3, the lever frame comprises a transverse shaft 5, two ends of the transverse shaft 5 are respectively and rotatably fixed on the base frame 1 through two bearings, a front longitudinal rod 6 and a rear longitudinal rod 7 are respectively and fixedly connected to the middle section of the transverse shaft 5, the front longitudinal rod 6 extends between the permanent magnet 2 and the magnetic induction normally open switch 3, the rear longitudinal rod 7 points to the obliquely lower side, the magnetic shielding plate 4 is fixed on the front longitudinal rod 6, the lower end of the rear longitudinal rod 7 is connected with an air plate 8, the magnetic induction normally open switch 3 is connected into the acousto-optic alarm loop in a series manner, and the air plate 8 is arranged at the windward position of a roadway below a matched coal leakage port.
The rear vertical rod 7 is composed of two parts hinged with each other, and the hinge shaft is a screw bolt 9 which can be screwed. And the air plate 8 is also provided with an air plate counterweight adjusting hole 10.
Claims (2)
1. The utility model provides a main shaft bottom coal pile protection monitoring devices, includes audible and visual alarm return circuit and bed frame, its characterized in that: the magnetic induction type coal leakage alarm device is characterized by further comprising a permanent magnet, a magnetic induction normally open switch and a lever frame, wherein the permanent magnet and the magnetic induction normally open switch are oppositely arranged on the base frame, a magnetic shielding plate is arranged between the permanent magnet and the magnetic induction normally open switch, the lever frame comprises a transverse shaft, two ends of the transverse shaft are respectively and rotatably fixed on the base frame through two bearings, a front longitudinal rod and a rear longitudinal rod are respectively and fixedly connected to the middle section of the transverse shaft, the front longitudinal rod extends between the permanent magnet and the magnetic induction normally open switch, the rear longitudinal rod points to the inclined lower side, the magnetic shielding plate is fixed on the front longitudinal rod, the lower end of the rear longitudinal rod is connected with an air plate, the magnetic induction normally open switch is connected into the acousto-optic alarm loop in a serial manner, and the air plate is arranged at the windward position of a roadway below the matched coal leakage port.
2. The primary bottom hole coal pile protection monitoring device of claim 1, wherein: the rear longitudinal rod consists of two parts hinged with each other, and the hinge shaft is a screw bolt capable of being screwed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457567.XA CN108423529B (en) | 2018-05-14 | 2018-05-14 | Main shaft bottom coal pile protection monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457567.XA CN108423529B (en) | 2018-05-14 | 2018-05-14 | Main shaft bottom coal pile protection monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108423529A CN108423529A (en) | 2018-08-21 |
| CN108423529B true CN108423529B (en) | 2023-09-05 |
Family
ID=63163045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457567.XA Active CN108423529B (en) | 2018-05-14 | 2018-05-14 | Main shaft bottom coal pile protection monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108423529B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010281594A (en) * | 2009-06-02 | 2010-12-16 | Japan Aerospace Exploration Agency | Mechanism for detecting prescribed flow velocity |
| CN105006083A (en) * | 2015-03-20 | 2015-10-28 | 北京中电兴发科技有限公司 | Monitoring device for detecting well lid loss |
| CN205247561U (en) * | 2015-12-23 | 2016-05-18 | 余柏春 | Well lid aversion monitoring devices based on GSM and magnetic induction ware |
| CN208440139U (en) * | 2018-05-14 | 2019-01-29 | 兖州煤业股份有限公司 | Main shaft bottom coal piling monitoring for protection device |
-
2018
- 2018-05-14 CN CN201810457567.XA patent/CN108423529B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010281594A (en) * | 2009-06-02 | 2010-12-16 | Japan Aerospace Exploration Agency | Mechanism for detecting prescribed flow velocity |
| CN105006083A (en) * | 2015-03-20 | 2015-10-28 | 北京中电兴发科技有限公司 | Monitoring device for detecting well lid loss |
| CN205247561U (en) * | 2015-12-23 | 2016-05-18 | 余柏春 | Well lid aversion monitoring devices based on GSM and magnetic induction ware |
| CN208440139U (en) * | 2018-05-14 | 2019-01-29 | 兖州煤业股份有限公司 | Main shaft bottom coal piling monitoring for protection device |
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| Publication number | Publication date |
|---|---|
| CN108423529A (en) | 2018-08-21 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 273500 No. 949, Fushan South Road, Zoucheng City, Jining City, Shandong Province Applicant after: Yankuang Energy Group Co.,Ltd. Address before: 273599 No. 298, Fushan South Road, Zoucheng, Jining, Shandong Applicant before: YANZHOU COAL MINING Co.,Ltd. |
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| GR01 | Patent grant |