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Mining explosion proof and intrinsically safe comprehensive protection device belt conveyor controller

Mining explosion proof and intrinsically safe comprehensive protection device belt conveyor controller

TAG: Mining explosion proof and intrinsically safe comprehensive protection device belt conveyor controll
Product number:Belt control
Description
---Description---

 

KHP121A-Z Mining Explosion-Proof And Intrinsically Safe Type Comprehensive Protection Device For Belt Conveyor

 

Application Range


This product is suitable for the mine with explosive gas (methane) and coal dust, to generally protect and control the belt conveyor, and also it can be used for centralized (random) control and protection for the scraper conveyor.

 

Product consist


No. Name Functions
1 KHP121A-Z Main machine of Explosion-Proof and Intrinsically Safe Type Protection Device for Belt Conveyor in coal mine Used for the control of belt conveyor start and stop, it can realize the function of belt conveyor faults monitoring and protection
2 Coal position sensor Detect the coal piling under the machine head
3 Coal flow sensor Detect the coal piling in the bunker
4 Speed sensor Detect the belt speed
5 Tear up sensor Detect the belt tear up
6 Offside sensor Detect the belt off side
7 Temperature sensor Detect the belt roller over temperature
8 Smoking sensor Detect the smoking in the tunnel
9 Spray device Water spray if over temperature or smoking

 

Basic technical parameter:


Items Basic parameter
Rated voltage input (V) AC 36/127
Frequency (Hz) 50
Voltage fluctuation range 75%~110%
Highest open-circuit voltage on intrinsic safe circuit (V) DC  12.5
Maximum short circuit current on intrinsic safe circuit (ma) DC   500
Relay contact rating (A/V) AC 0.75/127
Time to start early warning (s) ≥10
Action time of speed protection (s) 5~10(character of inverse time limit)
Action time of coal locate protection(s) ≤2
Action time of deviate protection (s) ≤2
Action time of tear protection (s) ≤2
Temperature protection (℃) 42±2℃
Action time of smoke protection(s) ≤60
Sensitivity of smoke protection Ⅲ grade
Watering cooling method Double side spray water
Communication signal frequency (Hz) 800~1200
Signal amplifier output power (W) ≤1

 

Functions and features


The core of the main control circuit is industrial-grade single-chip, which has such advantages as advanced performance, low power consumption, good safety, simple and reliable circuit structure etc.

It has three control methods that is single machine, centrolized and random, it is optional by setting. The centrolized or random control method can control 10 machines at the same time within 10km.

Random control is on the coal flow direction, the feature is that the start and stop of conveyor is random. The entire conveyor will automatically run after get coal warning and delayed stop machine after there is no coal. It can furthest reduce the running without coal which is good for saving energy and reduce the consumption.

It has the function of automatic polling, the user can know the working condition of other conveyor through any one main machine.It also can update automatically and display the local main machine working status, display in cycle the working status of each conveyor on the trunk.

It has the function of voice alarm and LCD display by words etc.

It has the function of power-off protection, which is when the power off suddenly during the machine normal working, the machine will not start after power on even if the switch is at the position “manually start”, it must be started manually again.

Each main mahcine can be centrolized display through data communication. It has the function of talkback and dotting, the talking voice is clear, loud with low noise.

The main machine equipped with various sensors can realize the protection function of coal at high and low position in the bunker, position under the machine head, slipping during low speed, belt break, over speed, belt off  tracking, belt split, over temperature, smoking, belt tension reducing, when the overheating or smoking protection act, it will automatically control magnetic valve watering.

 

KXJD1-127 Mining Explosion-Proof And Intrinsically Safe Type Control Device For Belt Conveyor

 

Application


This product is suitable for the mine with explosive gas (methane) and coal dust, to generally protect and control the belt conveyor, and also it can be used for centralized (random) control and protection for the scraper conveyor.


Product consist


No. Name Functions
1 KXJD1-127 Mining Explosion-Proof And Intrinsically Safe Type Of Control Device For Belt Conveyor Used for the control of belt conveyor start and stop, it can realize the function of belt conveyor faults monitoring and protection
2 Coal position sensor Detect the coal piling under the machine head
3 Coal flow sensor Detect the coal piling in the bunker
4 Speed sensor Detect the belt speed
5 Tear up sensor Detect the belt tear up
6 Offside sensor Detect the belt off side
7 Temperature sensor Detect the belt roller over temperature
8 Smoking sensor Detect the smoking in the tunnel
9 Spray device Water spray if over temperature or smoking

 

Basic technical parameter:


Items Basic parameter
Rated voltage input (V) AC 127
Frequency (Hz) 50
Voltage fluctuation range 75%~110%
Highest open-circuit voltage on intrinsic safe circuit (V) DC1  18.3    DC2  12.3
Maximum short circuit current on intrinsic safe circuit (ma) DC 1 430       DC2  1050
Relay contact rating (A/V) AC 0.75/127
Battery pack Intrinsically battery pack
Time to start early warning (s) 8~10s
Action time of speed protection (s) 5~10(character of inverse time limit)
Action time of coal locate protection(s) ≤2
Action time of deviate protection (s) ≤2
Action time of tear protection (s) ≤2
Temperature protection (℃) 42±2℃
Action time of smoke protection(s) ≤60
Sensitivity of smoke protection Ⅲ grade
Watering cooling method Double side spray water
Communication signal frequency (Hz) 800~1200
Signal amplifier output power (W) ≤1

 

Functions and features


The main machine adopt DSP control, it has the advantage that advanced performance, low power consumption, good security and the circuit structure is simple and realiable.

It has three control methods that is single machine, centrolized and random, it is optional by setting.

It has the function of automatic inspection, the user can know the working condition of other conveyor through any one main machine.

It has the commmunication function through industrial ethernet. The user can remote monitoring the entire conveyor status at real-time through the upper machine.

It has locate function by sensors, it can display the faults position when the emergency stop, offside, tearup sensor acts ,with the function of voice alarm and locate. It is easy to find the faults points.

The screen adopts 10.4 inches LCD screen, it can display various conveyor running status. It adopts fieldbus technique with less cable connection and strong functions.

The voice communication circuit has the functions of talkback and dotting. The voice communication circuit can continuously work for 30 mins through the power supply from the internal lithium battery.

The main machine equipped with various sensor can realize the protection function of coal at high and low position in the bunker, position under the machine head, slipping during low speed, belt break, over speed, belt off  tracking, belt split, over temperature, smoking, belt tension reducing, when the overheating or smoking protection act, it will automatically control magnetic valve watering.

The main control circuit adopts CAN bus isolation transceiver, the communication bus will not be influenced by the external disturbing.

 

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