The extraction type dust analyzer is an online dust analyzer independently developed and produced by our company. It adopts mainstream laser forward scattering measurement technology, and its key components are all imported. It is particularly suitable for various power generation boilers, industrial kilns, and industrial boilers in enterprises such as thermal power generation, steel metallurgy, petrochemical industry, cement production, pottery making, and waste incineration, as well as for smoke emission detection and flue gas desulfurization and dust removal engineering detection and control.
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1、 Product Introduction
The extraction type dust analyzer (front dispersion) is a particulate matter measuring instrument suitable for ultra-low emissions, with sensitivity and a detection limit of 0.005mg/m3. The instrument consists of four main parts: sampling and feedback unit, constant velocity tracking and control unit, heating and temperature control unit, and measurement and signal processing unit. The sampling and return unit completes the process of sampling and returning the tested gas; The constant velocity tracking and control unit completes the measurement of the flow rate and sampling flow rate of the flue gas, while controlling the pumping force of the jet pump to change the sampling flow rate, thereby achieving the purpose of tracking and sampling; The measurement and signal processing unit consists of a laser, a measurement cavity, a photoelectric converter, a blowback and gas curtain device, and a calibration device. By measuring the forward scattered light of particulate matter, the concentration of particulate matter is converted into an electrical signal, which is then output after conditioning and conversion.

2、 Product Features
High temperature heat tracing extracts dust to vaporize water and prevent water vapor from interfering with dust measurement; Adopting a large-diameter jet pump to avoid blockages caused by dust accumulation, with a long maintenance free cycle; Temperature compensation and automatic range switching function; Pitot tube parallel constant velocity sampling meets the technical requirements for smoke and dust sampling.
3、 Technical parameters

4、 Measurement principle
Based on the principle of forward light scattering, the highly stable laser emitted by the laser is collimated and enters the measurement chamber. When the laser beam meets the particles, forward scattered light is generated. The scattered light is received by the lens and introduced into the photodetector through the signal fiber. After ultra-high sensitivity photoelectric signal conversion, the scattered light signal is transformed into an electrical signal proportional to the concentration of the particles. Through a specific algorithm, the concentration value of the particles is output.
5、 Industry Applications
Suitable for online monitoring of ultra-low emissions from coal-fired power units and boilers (such as thermal power, steel, metallurgy, cement, petrochemicals, ceramics, aluminum industry, etc.), it can also be widely used in places where continuous measurement of particulate matter is required for process control, hygiene, safety, scientific research, etc
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