CN111506012A - Mining flame-proof and intrinsic safety type programmable control box - Google Patents
Mining flame-proof and intrinsic safety type programmable control box Download PDFInfo
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- CN111506012A CN111506012A CN202010269935.5A CN202010269935A CN111506012A CN 111506012 A CN111506012 A CN 111506012A CN 202010269935 A CN202010269935 A CN 202010269935A CN 111506012 A CN111506012 A CN 111506012A
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- intrinsically safe
- programmable control
- control box
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- Automation & Control Theory (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a mining flameproof and intrinsically safe programmable control box, which belongs to the technical field of mining equipment and comprises two groups of power supplies, wherein one group of power supplies provides an intrinsically safe power supply for an intrinsically safe circuit and a bidirectional linear isolation circuit, the other group of power supplies provides an intrinsically safe power supply for a non-intrinsically safe part and a bidirectional linear isolation circuit, the output ends of the intrinsically safe power supply and the non-intrinsically safe power supply are connected with P L C, the output end of P L C is connected with a water spraying device, a plurality of locking switches, a temperature sensor, a speed sensor and a coal pile, and each locking is connected with a plurality of deviation sensors.
Description
Technical Field
The invention relates to an intrinsic safety type programmable control box, in particular to a mining explosion-proof and intrinsic safety type programmable control box, and belongs to the technical field of mining equipment.
Background
Because the colliery is special occasion in the pit, according to colliery "safety regulation" requirement, the intrinsic safe signal must not use the cable transmission with non-intrinsic safe signal sharing, and the 127V power of many control boxes must adopt a cable to be in the same direction as even, in order to practice thrift the cost, it is more convenient to install, generally adopts four-core cable power supply, all adopts the carrier wave mode now to couple the intrinsic safe signal to the power supply line through the mode of carrier wave on, carries out long distance transmission through the power cord.
The existing mining explosion-proof and intrinsic safety type programmable control box generally adopts a split design, has a complex structure and a large volume, and needs to use a barrel type control box in different occasions, thereby increasing the use cost.
Disclosure of Invention
The invention mainly aims to solve the defects of the prior art and provides a mining explosion-proof and intrinsic safety type programmable control box.
The purpose of the invention can be achieved by adopting the following technical scheme:
the utility model provides a mining flame proof and intrinsically safe type programmable control case, including two sets of powers, a set of intrinsically safe power that provides the power for intrinsically safe circuit and two-way linear isolation circuit, another group is the non-intrinsically safe power that non-intrinsically safe part and two-way linear isolation circuit provided the power, the output of intrinsically safe power and non-intrinsically safe power all is connected with P L C, P L C's output is connected with water jet equipment, a plurality of blocking switch, temperature sensor, speedtransmitter and coal pile, every blocking all is connected with a plurality of off tracking sensors.
Preferably, the plurality of deviation sensors are respectively positioned above and below the belt.
Preferably, the plurality of latching switches are connected first in sequence.
Preferably, the intrinsic safety power supply internally comprises voltage stabilizing modules UM1 and UM2, a voltage comparator IM1 and IC2, resistors R1, R2, R4, R8, R9, R10, R11 and R12, potentiometers IR1 and IR2 and capacitors C3, C4, C5 and C6.
Preferably, the voltage stabilizing module UM1, the resistors R1 and R4 form a first stage of voltage stabilization, and the potentiometer IR1, the voltage comparator IM1, the resistors R5, R9 and R8, and the capacitor C4 form a first stage of overcurrent protection.
Preferably, the voltage stabilizing module UM2, the resistors R2 and R12 and the capacitor C6 form a second stage of voltage stabilization, and the potentiometer IR2, the voltage comparator IM2, the resistors R2 and R12 and the capacitor C5 form a second stage of overcurrent protection.
Preferably, the bidirectional linear isolation circuit comprises an intrinsically-safe to non-intrinsically-safe unidirectional isolation linear amplification circuit and a non-intrinsically-safe to intrinsically-safe unidirectional isolation linear amplification circuit, and the intrinsically-safe to non-intrinsically-safe unidirectional isolation linear amplification circuit comprises integrated blocks IC1 and IC3, an optical coupler IC2, a triode Q1, resistors R4, R5, R7 and R8 and a capacitor C2.
Preferably, the non-intrinsic safety to intrinsic safety unidirectional isolation linear amplification circuit comprises integrated blocks IC4 and IC6, an optical coupler IC5, a triode Q2, resistors R1, R2, R3 and R6 and a capacitor C1.
The invention has the beneficial technical effects that: according to the mining flameproof and intrinsically safe programmable control box, the intrinsically safe part and the non-intrinsically safe part realize bidirectional isolation linear output, signal transmission lines and non-intrinsically safe power supply are guaranteed to realize transmission of a same-core cable, the requirement of coal mine safety regulations is completely met, meanwhile, the core signal lines are used for transmitting voice and various control information, the installation and maintenance are convenient, the cost is low, one machine is multipurpose, the networking is convenient, and the use cost is reduced.
Drawings
FIG. 1 is a schematic view of a monitoring configuration of a preferred embodiment of a mining flameproof and intrinsically safe programmable control box according to the invention;
FIG. 2 is a bidirectional isolation linear amplification circuit of a preferred embodiment of the mining flameproof and intrinsically safe programmable control box according to the invention;
FIG. 3 is a schematic circuit diagram of an intrinsically safe power supply of a preferred embodiment of the mining flameproof and intrinsically safe programmable control box according to the invention.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-3, the mining flameproof and intrinsically safe programmable control box provided by this embodiment includes two sets of power supplies, one set of intrinsically safe power supplies that provide power for an intrinsically safe circuit and a bidirectional linear isolation circuit, and the other set of intrinsically safe power supplies that provide power for a non-intrinsically safe part and a bidirectional linear isolation circuit, where output ends of the intrinsically safe power supplies and the non-intrinsically safe power supplies are both connected with P L C, an output end of the P L C is connected with a water injector, a plurality of latching switches, a temperature sensor, a speed sensor and a coal pile, each latching switch is connected with a plurality of deviation sensors, the plurality of deviation sensors are respectively located above and below a belt, and the plurality of latching switches are connected in order at first.
In the present embodiment, as shown in fig. 1, the intrinsic safety power supply includes voltage stabilizing modules UM1 and UM2, voltage comparators IM1 and IC2, resistors R1, R2, R4, R8, R9, R10, R11 and R12, potentiometers IR1 and IR2, and capacitors C3, C4, C5 and C6. The voltage stabilizing module UM1, the resistors R1 and R4 form a first-stage voltage stabilization, and the potentiometer IR1, the voltage comparator IM1, the resistors R5, R9 and R8 and the capacitor C4 form a first-stage overcurrent protection. The voltage stabilizing module UM2, the resistors R2 and R12 and the capacitor C6 form a second stage of voltage stabilization, and the potentiometer IR2, the voltage comparator IM2, the resistors R2 and R12 and the capacitor C5 form a second stage of overcurrent protection.
In this embodiment, as shown in fig. 1, the bidirectional linear isolation circuit includes an intrinsically safe to non-intrinsically safe unidirectional isolation linear amplification circuit and a non-intrinsically safe to intrinsically safe unidirectional isolation linear amplification circuit, and the intrinsically safe to non-intrinsically safe unidirectional isolation linear amplification circuit includes integrated blocks IC1 and IC3, an optocoupler IC2, a transistor Q1, resistors R4, R5, R7 and R8, and a capacitor C2. The non-intrinsic safety to intrinsic safety unidirectional isolation linear amplification circuit comprises integrated blocks IC4 and IC6, an optical coupler IC5, a triode Q2, a resistor R1, a resistor R2, a resistor R3, a resistor R6 and a capacitor C1.
In this embodiment, as shown in fig. 1 to fig. 3, the working process of the mining flameproof and intrinsically safe programmable control box provided by this embodiment is as follows:
the intrinsic safety signal is amplified by a voltage amplifier IM3, then is output to an optical coupler IC2 through a linear triode Q1, and is subjected to linear compensation through an integrated block IC2 and a triode Q1, and a signal which is output from a pin 5 of an integrated block IC2 is subjected to impedance conversion through an integrated block IC1 to obtain a signal which is not intrinsic safety and is completely consistent with the intrinsic safety signal, so that the signal is completely isolated from the intrinsic safety signal, and the signal conversion from the intrinsic safety signal to the non-intrinsic safety signal is realized.
In summary, in this embodiment, according to the mining flameproof and intrinsically safe programmable control box of this embodiment, the flameproof and intrinsically safe programmable control box provided in this embodiment realizes bidirectional isolated linear output by the intrinsically safe part and the intrinsically safe part, ensures that the signal transmission line and the intrinsically safe power supply realize transmission of the same-core cable, completely meets the requirements of coal mine safety regulations, transmits voice and various control information by using the core signal line, is convenient to install and maintain, has low cost, is multipurpose by one machine, is convenient to network, and reduces use cost. The voice and control information of the intrinsic safety part are converted into non-intrinsic safety signals through the bidirectional isolation amplifying circuit and transmitted through the non-intrinsic safety transmission line. Meanwhile, voice and control information on the non-intrinsic safety transmission line are converted into intrinsic safety signals through the bidirectional isolation amplifying circuit, the intrinsic safety signals are processed and amplified by the intrinsic safety circuit and then drive the loudspeaker, and meanwhile, the control relay is driven and used for controlling required equipment.
The above are only further embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its concept within the scope of the present invention.
Claims (8)
1. The utility model provides a mining flame proof and intrinsically safe type programmable control case which characterized in that, includes two sets of powers, a set of intrinsically safe power that provides the power for intrinsically safe circuit and two-way linear isolation circuit, another set of non-intrinsically safe power that provides the power for non-intrinsically safe part and two-way linear isolation circuit, the output of intrinsically safe power and non-intrinsically safe power all is connected with P L C, P L C's output is connected with water jet equipment, a plurality of block switch, a temperature sensor, a speed sensor and coal pile, every block all is connected with a plurality of off tracking sensors.
2. The mining flameproof and intrinsically safe programmable control box of claim 1, wherein the plurality of deviation sensors are respectively positioned above and below the belt.
3. The mining flameproof and intrinsically safe programmable control box of claim 1, characterized in that a plurality of latching switches are connected in sequence at the head.
4. The mining flameproof and intrinsically safe programmable control box of claim 1, characterized in that the intrinsically safe power supply internally comprises voltage stabilizing modules UM1 and UM2, voltage comparators IM1 and IC2, resistors R1, R2, R4, R8, R9, R10, R11 and R12, potentiometers IR1 and IR2 and capacitors C3, C4, C5 and C6.
5. The mining flameproof and intrinsically safe programmable control box of claim 4, characterized in that a first-stage voltage stabilization is formed by the voltage stabilization module UM1 and the resistors R1 and R4, and a first-stage overcurrent protection is formed by the potentiometer IR1, the voltage comparator IM1, the resistors R5, R9 and R8 and the capacitor C4.
6. The mining flameproof and intrinsically safe programmable control box of claim 4, characterized in that a voltage stabilizing module UM2, resistors R2 and R12 and a capacitor C6 form a second stage of voltage stabilization, and a potentiometer IR2, a voltage comparator IM2, resistors R2 and R12 and a capacitor C5 form a second stage of overcurrent protection.
7. The mining flameproof and intrinsically safe programmable control box of claim 1, characterized in that the bidirectional linear isolation circuit comprises an intrinsically safe to non-intrinsically safe unidirectional isolation linear amplification circuit and a non-intrinsically safe to intrinsically safe unidirectional isolation linear amplification circuit, and the intrinsically safe to non-intrinsically safe unidirectional isolation linear amplification circuit comprises integrated blocks IC1 and IC3, an optocoupler IC2, a triode Q1, resistors R4, R5, R7 and R8, and a capacitor C2.
8. The mining flameproof and intrinsically safe programmable control box of claim 7, characterized in that the non-intrinsically safe to intrinsically safe unidirectional isolation linear amplification circuit comprises integrated blocks IC4 and IC6, an optocoupler IC5, a triode Q2, resistors R1, R2, R3 and R6 and a capacitor C1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010269935.5A CN111506012A (en) | 2020-04-08 | 2020-04-08 | Mining flame-proof and intrinsic safety type programmable control box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010269935.5A CN111506012A (en) | 2020-04-08 | 2020-04-08 | Mining flame-proof and intrinsic safety type programmable control box |
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| CN111506012A true CN111506012A (en) | 2020-08-07 |
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| CN202010269935.5A Pending CN111506012A (en) | 2020-04-08 | 2020-04-08 | Mining flame-proof and intrinsic safety type programmable control box |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200975263Y (en) * | 2006-05-03 | 2007-11-14 | 宿州科力电器有限公司 | Language acousto-optic signal device for mining |
| CN201294547Y (en) * | 2008-11-27 | 2009-08-19 | 北京泰安特科技有限公司 | Safety grid for isolating colliery downhole data network principal safety |
| CN101901584A (en) * | 2010-07-15 | 2010-12-01 | 宿州科力电器有限公司 | Mine explosion-suppression and intrinsic safety type monitor display |
| CN102493835A (en) * | 2011-12-23 | 2012-06-13 | 济南矿安电气有限公司 | Mine safety production monitoring system |
| CN204086911U (en) * | 2014-06-09 | 2015-01-07 | 唐山开诚电控设备集团有限公司 | A kind of mine explosion-suppression and intrinsic safety type PLC technology case |
| CN206960939U (en) * | 2017-02-10 | 2018-02-02 | 北京龙软科技股份有限公司 | A kind of mine explosion-suppression and intrinsic safety type Belt transport master station |
-
2020
- 2020-04-08 CN CN202010269935.5A patent/CN111506012A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975263Y (en) * | 2006-05-03 | 2007-11-14 | 宿州科力电器有限公司 | Language acousto-optic signal device for mining |
| CN201294547Y (en) * | 2008-11-27 | 2009-08-19 | 北京泰安特科技有限公司 | Safety grid for isolating colliery downhole data network principal safety |
| CN101901584A (en) * | 2010-07-15 | 2010-12-01 | 宿州科力电器有限公司 | Mine explosion-suppression and intrinsic safety type monitor display |
| CN102493835A (en) * | 2011-12-23 | 2012-06-13 | 济南矿安电气有限公司 | Mine safety production monitoring system |
| CN204086911U (en) * | 2014-06-09 | 2015-01-07 | 唐山开诚电控设备集团有限公司 | A kind of mine explosion-suppression and intrinsic safety type PLC technology case |
| CN206960939U (en) * | 2017-02-10 | 2018-02-02 | 北京龙软科技股份有限公司 | A kind of mine explosion-suppression and intrinsic safety type Belt transport master station |
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