SU960446A1 - Apparatus for controlling mine ventilation doors - Google Patents

Description

The invention relates to the mining industry, in particular, to automatic control devices for mine ventilation doors of various designs for the passage of vehicles, and can also be used for automatic opening and closing of the ore-rock shutters.

A device is known that contains sensors, traffic lights, which are connected to the outputs of the traffic light control unit, to the inputs of which the outputs of sensors 1 are connected.

This device signals the position of the ventilation door, however, it does not control the ventilation doors.

The closest in technical essence to the invention is a device for controlling shaft ventilation doors, comprising a door drive, a drive control unit, a traffic light control unit, a block of memory aisles. The fixation of the passage of transport, the limit switches closed and open position, the outputs of the sensors fix the passage of transport connected to the first inputs of pvm t

and control units for the door drive and traffic lights, the outputs of the memory unit are connected to the second inputs of the drive control unit and the traffic lights, the third input of the door drive control unit is connected to the ends of the door closed position switch, and its fourth input and the third input of the traffic light control unit

10 are interconnected and connected to the limit switch of the open position of the door 2.

The known device provides automatic opening and

15 closing the mine ventilation door during the passage; sensor transport.

However, the known device does not provide for the automatic closing of the door (in the absence of transport in its zone) in excess of the time that determines the normal mode of ventilation, remote installation and control of the initial partial

25 of the open state of the door, the alarm to the dispatcher about the long-term opening of the door state and the possibility of its remote closing disrupt the normal mode of aeration. 30 vanilla in the mine, when re-energized (after a short shutdown) of the supply voltage, the position of the door, which she held before it was turned off, violates the driver’s warning signaling about the command to close the door with a delay in its execution, which reduces the safety of transport

The aim of the invention is to improve the mode of ventilation in the mine and increase the safety of transport operations.

The goal is achieved by the fact that the device is equipped with a knob and switches for intermediate positions of the door, a position monitoring unit for two times when reapplying the supply voltage, an element, a delay, an alarm unit and a monitoring time relay, the first input of which is connected to the door closed position limit switch, the second input - to the output of the memory unit and the output - to the inputs of the alarm unit and the control unit. The position of the door when the power supply is turned on again, the other inputs of which are connected to the terminal off The positions of the open and closed positions of the doors, and the outputs, to the second inputs of the memory unit, to the outputs of the latter are connected the inputs of the delay element, the output of which is connected to the second and third traffic lights and the fifth input of the drive control unit, the sixth input of which is connected to the output of the unit control of the intermediate positions of the door, to the inputs of which the switches and outputs of the intermediate position switch of the door are connected.

The drawing shows a block diagram of the control devices for the mine ventilation doors.

The device contains the first 1, second 2., third, 3 and fourth 4 traffic lights, sensors 5-8 for fixing the passage of transport, door 9, door drive 10, limit switch 11 of the closed position of the door, limit switches 12-14 of the intermediate (1/4, 1/2, 3/4) door position, end switch of open door position, time control relay 16, door position control unit 17 when power supply voltage is turned on again (after a brief shutdown), drive control unit 18, unit 19 memory of transport passage, traffic control unit 20 MI, intermediate door position control unit 21, intermediate position setter 22, delay element 23, alarm node 24, input 25 - device input, with sensor outputs 5-8 connected to the first inputs of memory block 19, drive control block 18 and block 20 control of traffic lights, the outputs of memory block 19 are connected to the second inputs of blocks 18 and 20 and delay element 23, the output of block 19 is connected to the input of the drive 10, and the outputs of block 20 are connected to the corresponding traffic lights 1-4, the third input of block 18 is connected to the end the switch 11 closed position of the door and the fourth input of the block 18 and the third input of the block 20 are interconnected and connected to the limit switch 15 of the open position of the door, the first input of the time control relay 16 is connected to the limit switch 11, and secondly to the output of the block 18, the output of the control time relay 16 is connected to the input of the alarm unit 24 and the unit 17 for controlling the position of the door when the power supply is turned on again, the other inputs of the unit 17 are connected to the end switches 11 and 15, and its outputs are connected to the second inputs of the memory unit 18, the output element 23 delays connected n to the second 2 and third 3 traffic lights and the fifth input of the block 18, the sixth input of which is connected to the output of the block 21 controlling the intermediate positions of the door, the inputs of which are connected switches 12-14 and the outputs of the setpoint 22 intermediate positions of the door, the second input of the delay element 23 to input 25 of the device.

The sensors 5 and 8 are located on opposite sides of the door at a distance sufficient to completely open the door without reducing the speed of the transport passing the sensor, but not more than 50 m.

The sensors 6 and 7 are located on opposite sides of the door at a distance not exceeding the length of the transport case.

The device works as follows.

If there is no transport, the ventilation door 9 is closed

In this position, the doors, limit switches 11 are closed and 15 are open, the device's nodes and blocks are in the initial position, in which the door drive 10 is turned off, and from the output of the sphetotor control unit 20, signals are received that turn on traffic lights 1 and 4 that are far from the door allowing green lights, and at traffic lights .2 and 3, located near the door, prohibiting red lights are turned on.

When the sensor passes the sensor, the signal from it goes to the inputs of the drive control units 18 and the traffic lights 20. However, they do not turn on until their inputs receive a signal from the memory element of the traffic direction of unit 19, which turns on the same signal sensor. After that, block 20 switches the traffic light 4 to prohibiting oncoming traffic (red light), and block 18 turns on the drive

10 to open the door. At the beginning of opening the door, the limit switch 11 of the closed position of the door opens, and after it is fully opened, the limit switch 15 of the open position of the door closes, which turns off the drive activation element in block 18, and through block 20 switches the traffic light 2 to green. At the same time

with limit switch opening

11, a time control relay 16 is activated, which counts the time of the open position of the door. If during this time signals are received from the sensors b - 8 to the inputs of the memory block 19, the traffic passes, the control relay does not affect the operation of the device.

In this case, after the transport has passed the latter along the motion of the 8 si sensor: | From its exit to block 19, a memory element of this direction is reset, which sends to the block 18 a command to turn on the door drive for closing, and to block 20 a command to switch the traffic light 4 to an enabling green light. However, the execution of these commands does not occur, because the signal from block 19 includes element 23 for some time delaying their execution (on the order of 10 s, but can be adjusted for another period of time). At the same time, delay element 23 triggers a warning signaling the command to close the door. i.e. turns on the red and green lights of lights 2 and 3 at the same time. After deactivating the delay element 23, the prohibition of blocks 18 and 20 is lifted, as a result of which the drive is turned on, and the door is closed, and the lights of traffic lights are switched to their original position by block 20.

If, however, the signals of passage 6-8 from the sensors 6-8 are not received, then after a set period of time the control relay 16 sets the switched-on memory element in block 19 to the initial position, which with its signal sends to the block 18 a command to turn on the drive closing two, and in block 20 a command to switch the lights of traffic lights 2 and 4. However, the execution of commands is delayed by the switched on element 23, which when turned on by block 19 for the delay time of execution of the specified commands includes a warning ie traffic lights on giving the team at the closed door vanie.

After the delay element 23 returns to its initial state, the prohibition from blocks 18 and 20 is lifted, as a result, block 18 turns on the drive and the door closes, and lights of the traffic lights by block 20 turn on to the initial position.

If, after the activation of the control relay 16, the door does not close, this relay is signaled by

0 its output includes an alarm in block 24, according to which the dispatcher has the ability to close the door remotely (by giving a signal to input 25).

The operation of the device with partial

5, the initial opening of the ELM door position is carried out similarly to the above, only in this case the initial open position (1/4, 1/2 and 3/4) of the door is set using the setting device 22, and the control of these positions is performed using the block 21, which with the coincidence of the signals specified part; the open position of the door (noc-i5 blunt from the knob 22) and one; temporary with limit switch 12, 13 or 1.4 sends a signal to unit 18 to turn off the drive.

When the power is switched on again (after a short shutdown), the door retains the position it occupied before it was turned off.

Example. Let the door be

5 is open. In this case, the limit switch 15 is closed, through which, at the moment of switching on the supply voltage, a signal arrives at the input of block 17. In this block, signals are generated at the corresponding logical chains at the inputs of memory block 19 by setting the memory cell to the position door position.

one

five

Thus, the proposed device provides automatic opening and closing of the ventilation door and the corresponding indication when passing by the sensor transport, as well as automatic closing of the door in excess of the time determining the normal ventilation mode, remote installation and control of the initial partial

5 open position of the door, an alarm to the dispatcher about an open position beyond a predetermined time, the ability to remotely close the door, a warning signal to issue a command to close the door with a delay in its execution and to maintain the position of the door that she held before the momentary power supply voltage allows you to improve the mode.

ventilation in the mine and improve the safety of transport.

Fore || ula invention

Control unit for ventilation doors / containing the door drive control unit, control unit, traffic lights control, memory unit, vehicle passage fixation sensors, limit switches for the closed and open position of the door, the sensor outputs of the transport aisle are connected to the first inputs of the unit These and door drive control units and traffic lights, the outputs of the memory unit are connected to the second inputs of the door drive control unit and traffic lights, the third input of the door drive control unit is connected to the end evom door switch closed position, and its fourth input and a third input light signals of the control unit are interconnected and connected to kontsevsmlu switch open, the position of the door, about l ton. And so that, in order to improve the ventilation mode in the mine and increase the safety of transport operations, it is equipped with a control and switches for intermediate positions of the door, a control unit for the position of the door when the power is switched on again, a delay element , an alarm unit and a time relay, the first input of which is connected to the door closed position limit switch, the second input to the output of the memory unit, and the output to the inputs of the alarm unit and the door position control unit when on again The supply voltage is different, friend) the 1st inputs of which are connected to the limit switches of the open and closed positions of the doors, and the OUTPUTS - to the second inputs of the memory unit to the outputs of the latter are connected the inputs of a delay element, the output of which is connected to the second and third traffic lights and the fifth input the door drive control unit, to the sixth Q input of which the output is connected; the intermediate door position control unit, to the inputs of which the switches and outputs of the intermediate door position adjuster are connected.

Sources of information taken into account in the examination

1. Japanese Patent No. 17417, cl. 8 CO / pub. 1960

2. Automatic shaft ventilation doors. Sat Materials

 on compaction TSNIItsvetmet. Issue 2, 1957, p. 46-53 ..

Claims (2)

Claim A control device for mine ventilation doors, comprising a door drive control unit, a traffic light control unit, a memory unit, vehicle passage fixation sensors, limit switches for • closed and open door positions, 'the outputs of the vehicle passage fixation sensors being connected to the first inputs of the unit, memory and units control the door drive and traffic lights, the outputs of the memory unit are connected to the secondary inputs; door drive control unit and traffic lights, the third input of the door drive control unit is connected to the limit switch of the closed position of the door, and its fourth entrance and third input of the control unit of traffic lights are interconnected and connected to the limit switch of the open, that door position, from L. and moreover, in order to improve the ventilation mode in the mine and increase the safety of transport, it is equipped with a switch and switches for intermediate door positions, a unit for monitoring the door position when the supply voltage is turned on again, an element Delays, by the alarm unit and control * time relay, first input 5 of which is connected to the limit switch of the closed position of the doors, the second input is to the output of the memory unit, and the output is to the inputs of the signaling unit and the control unit of the door position at • 10 repeated switching on of the supply voltage, the other inputs of which are connected to the limit switches of the open and closed door positions , and the outputs - to the second inputs of the memory block, 15 the outputs of the latter are connected to the inputs of the delay element, the output of which is connected to the second and third traffic lights and the fifth input of the door drive control unit, to the sixth 20, the input of which is connected to the output of the intermediate door position control unit, to the inputs of which the switches and the output of the intermediate door positioner are connected. 25 Sources of information taken into account in the examination 1. Japan patent No. 17417, cl. 8 СО »published. 1960. 2. Automatic mine ventilation doors. Sat Materials ** for automation TsNIItsvetmet. Vol. 2, 1957, p. 46-53 ,. 9C0446