Xizheng brand industrial dust concentration detector measuring instrument

Xizheng brand industrial dust concentration detector measuring instrument

Product Introduction

The dust bag leak detector measures the electrostatic induction of dust particles passing through a fixed probe. Dust particles and probes induce static charges, which are amplified by the probe and transmitted to the monitoring and control system. The magnitude of electrostatic charge andThe flow rate of dust particles is proportional. The high-tech electronic circuit of this system converts this part of the charge into a control signal output, activates the dust over limit emission alarm, and is used to continuously record the total amount or concentration of dust particles.The device provides the latest communication coupling technology in the world. This is a modern, precise and stable monitoring technology, particularly suitable for continuous emission recording and data accumulation. The working principle of this monitoring system is to use the charge induction generated by the flow of dust particles around the probe to confirm the online emission amount (mg/sec) or emission concentration (mg/m) of dust particles3）. Under relatively stable combustion conditions (i.e. at the same emission point, there are no significant changes in flow rate, temperature, pressure, humidity, and particulate properties),Less than ± 90% variation), this system can also be used for online monitoring of emission concentrations (unit=mg/M3) after direct calibration.

1、 Introduction to Dust Bag Leak Detector
Dust detectors are mainly used in industrial fields, including ceramic manufacturing, cement, fine chemistry, pharmaceuticals, and food industries for dust removal systems. In these processing fields, it is necessary to fully consider the recycling and utilization of dust to reduce the loss of raw materials during the processing. The dust emissions from factories are also restricted by air pollution control laws, local regulations, and other rules. Air pollution control systems such as bag filters and electrostatic precipitators are used to isolate particles or dust from the airflow before being emitted into the atmosphere.

2、 Working principle of dust bag leak detector:

Working principle: Static charge measurement principle: Any powder like substance will collide and rub during pneumatic conveying, causing the powder particles to lose electrons and form positively charged particles. With changes in concentration and powder flow rate, the amount of charge will also change according to a certain law. The charge carried by dust particles forms an electrostatic field.（Xizheng Technology）By using the principle of electrostatic induction, the size and changes of the electrostatic field can be measured, and through signal processing, the quantity value of the powder concentration in the gas-solid phase can be displayed.

3、 Four major features of dust bag leak detector:
1. Adopting excellent practical technology - improved AC coupling technology, it has high sensitivity and good linearity for dust detection. Dust contamination of the probe does not affect the measurement sensitivity and is maintenance free and cleaning free.
2. Standard two-wire 4-20mA current output, strong anti-interference ability, easy long-distance signal transmission, no special requirements for signal transmission wires, linear relationship between output current and dust concentration, convenient for subsequent PLC data processing.
3. The installation and use are consistent with the two-wire pressure transmitter, and on-site engineering and technical personnel can use it correctly without any special training. The installation is convenient and the operation is reliable.
4. The integrated transmitter output 4-20mA current in the junction box is electrically isolated from the dust sensing probe to achieve safe signal transmission.

4、 Precautions for dust bag leak detector:
1. Avoid wiping the probe too vigorously with a dry cloth. If wiping is necessary, use a damp cloth instead of water or organic solvents.
2. Keep away from strong electromagnetic fields. If it is necessary to pass through a strong electromagnetic field, use a metal sleeve to cover the probe.
3. After installation, try not to move the device randomly to avoid collision and affecting use during movement.
This device requires 24V power supply.

Xizheng brand industrial dust concentration detector measuring instrument