Main unit of mining automatic sprinkler dust reduction device

1、 Purpose (Wind Water Linkage Dust Reduction Device for Large Alleys)

1. The ZP127 mining automatic sprinkler dust reduction device is an optimization and improvement of the existing sprinkler system after conducting extensive underground field investigations and experiments; Listen simultaneously

After receiving a large number of user feedback, the reliability, sealing, and ease of operation of this device have been improved to varying degrees compared to existing similar products.

2. This device is suitable for underground coal mines, open-pit coal mines, coal preparation plants, etc. with explosive gases and coal dust.

1、 Technical parameters

1. Working voltage: AC127V Frequency: 50HZ Voltage variation range: 85% -110% of nominal value.

2. Intrinsic safety output: 13.6V/534mA (supplying power to the sensor) Intrinsic safety output voltage U0: 13.6V.

3. Output current I0:534mA.

4. Protection method: dual overvoltage and overcurrent protection.

5. Working mode: Continuous power supply.

2、 Environmental conditions

The device should be able to operate normally under the following environmental conditions:;

a) Environmental temperature: 0-45 ℃.

b) The relative humidity of the air is ≤ 95% (at 25 ℃).

c) Atmospheric pressure: 80Kpa-16Kpa.

d) An environment with gas and coal dust explosion hazards, but without corrosive gases.

e) A place without severe vibration or impact, but capable of withstanding vibrations with a peak acceleration of 500m/s2.

3、 Working principle

A pyroelectric sensor utilizes infrared radiation emitted by the human body, which is amplified by a Fresnel filter and focused onto an infrared sensing source. The infrared sensing source adopts pyroelectric elements, which release charges outward after receiving human signals. The sensor circuit amplifies, detects and processes the signals before transmitting them to the host controller.