CN2170375Y

CN2170375Y - Full-automatic timing sprayer for mine

Info

Publication number: CN2170375Y
Application number: CN 93217526
Authority: CN
Inventors: 陆泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-03
Filing date: 1993-07-03
Publication date: 1994-06-29
Anticipated expiration: 2003-07-03

Abstract

The utility model relates to a full-automatic timing sprayer for mines. An electromagnetic valve is arranged on the top of a roadway of the mine; a plurality of sprayers are arranged on the cross section of the top of the roadway; the switching of a water intake pipe is controlled by the electromagnetic valve and the spray of the sprayer is under control. Two probes are arranged on both sides of the sprayer on the top of the roadway respectively; the probe is output to a master controller which is composed of a power supply and an automatic timing circuit; the mater controller output controls the switch on and off of the electromagnetic valve. The utility model with the advantages of less water consumption, convenient installation and low cost can avoid water accumulation in the working place.

Description

Full-automatic timing sprayer for mine

The utility model relates to a kind of mining dust guard, particularly full-automatic regularly atomization mechanism.

Present mine dust guard, a kind of be 24 hours every days normal spraying barrier leak with the flying dust of blocking-up in the tunnel, so water consumption causes waste greatly, the workplace forms ponding, will drench when personnel pass in and out, and influences work.Another kind is to adopt electrooptical device to control spray, but the probe of electrooptical device is installed in the human body height, artificially damaged easily, the probe of electrooptical device is respectively adorned one on mine laneway two limits in addition, one is emission, and one is reception, and needs the optical registration human body, make this apparatus cost higher, inconvenience is installed.

The purpose of this utility model provides a kind of mining full-automatic timing atomization mechanism, and its water consumption is little, can avoid workplace ponding, simple installation, and cost is low.

The utility model is achieved in that at the mine laneway top electromagnetic valve 4 is housed, cross section, top, tunnel is by adorning some shower nozzles 5, open and close by electromagnetic valve 4 control water inlet pipes, the spraying of shower nozzle 5 is controlled, respectively adorn a

probe

1,2 on shower nozzle 5 both sides, top, tunnel,

probe

1,2 outputs to the main controller of being made up of power supply and automatic timing circuits 3, by the open and close of main controller 3 output control electromagnetic valve 4.

Following accompanying drawing as a result is further described below the utility model.

Fig. 1 is the utility model sidepiece scheme of installation.

Fig. 2 is the utility model top scheme of installation.

Fig. 3 surveys electrical schematic diagram for intrinsic safety type.

Fig. 4 is the self-timing electrical schematic diagram.

Fig. 5 is the power supply electrical schematic diagram.

Probe

1,2 of the present utility model releases infrared sensor 7 by Fresnel Lenses 6, heat and adapter amplifier is formed.The organism infrared signal is focused on heat by Fresnel Lenses 6 release on the infrared sensor 7,, make column by smooth optical mirror plane and handle, make monitoring range expansion and hidden according to optical principle.The monitoring space is isolated be a series of narrow and small infrared " induction zone " and " dead zones " of replacing.Human body moves in its investigative range, and " induction zone " interior infrared rays is cut in and out.Heat is released the light pulse of infrared sensor 7 with the respective change that receives, releases the matching effect of FETs in the infrared sensor 7 by heat, converts the signal of telecommunication of respective change to, the input adapter amplifier.Adapter amplifier is the high-gain in-phase amplifier, has very high multiplication factor, also is a low pass filter simultaneously, disturbs to eliminate transition, lowers rate of false alarm.Adapter amplifier is made up of ic chip 1, Zener diode D1, resistance R 4, R5, R6, R7, R8, R9, R1, R3 and capacitor C 1, C2, C3, C4.Capacitor C 1 is the signal coupling capacitance, the signal of telecommunication that heat is released infrared sensor 7 is input to ic chip 1 and mates amplification, resistance R 4, R5 are signal load resistance, make that to release the signal of telecommunication of infrared sensor 7 output from heat reliable and stable, prevent misoperation, resistance R 7, R8 are negative feedback resistor, prevent ic chip 1 high-gain coupling amplification self-excitation.Capacitor C 3 plays the high frequency attenuation effect.Resistance R 6, R9 make coupling amplification DC operation in stable condition.Resistance R 1, capacitor C 2 are output resistance, electric capacity, and signal is input in the main controller 3, play 4 work of control electromagnetic valve.Resistance R 3, capacitor C 4 are formed the power supply decoupling circuit.Zener diode D1 plays the stabilized supply voltage effect.

The power supply of

probe

1,2 parts is supplied with by main controller 3, and power supply is exported by cable connection to probe 1,2.Because of 1,2 power supplys of popping one's head in must be used the intrinsic safety type power supply,, handle main controller 3 out-put supplies so must carrying out safety anti-explosive.Transformer B is 12 volts of outputs of interchange with 127 volts of interchanges or 36 volts of voltage transformations, and bridge heap QL is a bridge rectifier, is DC voltage with B level of transformer ac voltage rectifier.Capacitor C 5, C6 are power filtering capacitor, improve the ripple of DC voltage.Ic chip 2 adopts WB7809 three end integrated voltage stabilizers to make the DC voltage voltage stabilizing of bridge heap QL rectification at 9 volts.Resistance R 2 is a current-limiting resistance, and the restriction output current is limited in the scope of essential safety electric current the source current of

probe

1,2 parts, reaches the requirement of essential safety electric current, because main controller 3 shells also adopt the flame proof measure, is safe therefore again.

Automatic timing circuits is formed by regularly on-off circuit, oscillating circuit, counting circuit and output circuit being set.Regularly on-off circuit being set is that time usefulness is set, and can be set the time arbitrarily according to actual conditions, is made up of K switch, resistance R 10, R11, R12, R13, R14, R15, R16, capacitor C 7, C8.Resistance R 10, capacitor C 7 are power supply decoupling resistance, electric capacity, eliminate the interference of power unit and influence regularly, and ic chip 5 output stages and oscillating part are regularly isolated, and prevent the phase mutual interference.K switch is 4 grades of optional fourth gear times of timing selecting switch.Resistance R 11, R12, R13, R14, R15, R16 and capacitor C 8 are regularly charging resistor, electric capacity, select different resistances and capacity can change timing.

Oscillating circuit is made up of ic chip 3, triode T2, LED, resistance R 17, R18, R19 and capacitor C 9, C10, C11.Ic chip 3 is 555 time-base oscillation circuit, and capacitor C 9 is the anti-self-excitation capacitance of oscillating circuit, and resistance R 17, capacitor C 10 make oscillating circuit output pulse reliable.Resistance R 18, R19, triode T2 and LED are used for monitoring oscillating circuit work, pulse of the every vibration output of ic chip 3,555 time-base oscillation circuit, and LED will be once bright.Capacitor C 11 is the oscillating circuit output capacitance.Counting circuit is made up of the decade counter and the capacitor C 12 of ic chip 4, by capacitor C 11 the oscillating circuit output signal is coupled to ic chip 4, when the count pulse meter to ten the time, ic chip 4 output pulse signals.Capacitor C 12 is the coupling capacitance of decade counter IC4.

Output circuit is made up of ic chip 5, resistance R 20, R21, R22, capacitor C 13, C14 and triode T1.Ic chip 5, resistance R 20, R21 and capacitor C 13, C14 form 555 monostable circuits, change the resistance and the capacity of resistance R 21 and capacitor C 13, can change monostable time.Resistance R 22 and triode T1 make ic chip 3 oscillating circuit failure of oscillations, promptly count signal is imported integrated package IC5 by capacitor C 12, when ic chip 4 count down to the tenth pulse, ic chip 4 output high level were through capacitor C 12 input integrated package IC5, make the circuit upset, ic chip 5 output high level, ic chip 5 outputs make triode T1 conducting, and capacitor C 8 is by short circuit, make ic chip 3 failures of oscillations, by main control 3 output control electromagnetic valve 4.

When this device is in normal operating conditions, according to the blanking time that user's needs are regulated, the self-timing spraying.As be adjustable as spraying 3 minutes, and stop 5 minutes, sprayed again 3 minutes etc.

No matter when spray in spray often or interval, when personnel's desire is passed through spraying area,, should stop spraying automatically for preventing to drench the person.At this moment, human body enters heat and releases in the investigative range of infrared probe, receives because the heat of human body is released to probe, and this device is closed automatically, stops spraying, after the personnel for the treatment of leave, promptly begins spraying automatically.

Because can select spray time, littler than normal spray apparatus water consumption, also avoided the ponding of workplace. Because only have two probes, respectively will fill two than photo-electric control and transmit and receive the probe simple installation, and manufacturing cost is also low.

Claims

1, a kind of mining full-automatic timing atomization mechanism, comprise that the mine laneway top is equipped with electromagnetic valve (4), cross section, top, tunnel is by adorning some shower nozzles (5), open and close by electromagnetic valve (4) control water inlet pipe, the spraying of shower nozzle (5) is controlled, it is characterized in that respectively adorning a probe (1), (2) on top, tunnel shower nozzle (5) both sides, probe (1), (2) output to the main controller of being made up of power supply and automatic timing circuits (3), by the open and close of main controller (3) output control electromagnetic valve (4).

2, mining full-automatic timing atomization mechanism according to claim 1 is characterized in that described probe (1), (2) by Fresnel Lenses (6), and heat releases infrared sensor (7) and adapter amplifier is formed.

3, mining full-automatic timing atomization mechanism according to claim 2 is characterized in that described adapter amplifier is made up of ic chip 1, Zener diode D1, resistance R 4, R5, R6, R7, R8, R9, R1, R3 and capacitor C 1, C2, C3, C4.

4, mining full-automatic timing atomization mechanism according to claim 1 is characterized in that described automatic timing circuits is provided with on-off circuit, oscillating circuit, counting circuit and output circuit by timing and forms.