Venturi wet dust collector

General introduction: A venturi wet dust collector is a device that brings dust-laden gas into close contact with liquid. It captures particles or increases particle size through inertial collision between water droplets and particles.

Detailed introduction is as follows:

Structural Composition

Main components: Air inlet pipe, contraction pipe, throat pipe, diffusion pipe, spray pipe, circulating water tank, circulating water pump and air outlet. The cross-section is available in circular and rectangular shapes.

Working Principle

After entering the contraction pipe, the velocity of dust-laden gas gradually increases, and pressure energy is converted into kinetic energy. The gas velocity reaches the maximum of 50-180m/s at the throat inlet. The washing liquid is injected through nozzles evenly distributed around the throat. Liquid droplets are atomized and accelerated by high-speed airflow. Dust particles are captured through inertial collision and diffusion. The dust-containing droplets flow into the diffusion pipe with gradually reduced velocity and recovered pressure. The gas-liquid mixture enters cyclone separators or demisters for separation, and the purified gas is finally discharged.

Classification

According to working characteristics: Fixed-flow venturi dust collectors and variable-flow venturi dust collectors. The fixed throat type requires constant airflow to maintain stable pressure difference and collection efficiency. The variable-flow type adopts adjustable throats to adjust damper positions for constant pressure difference and efficiency.

Performance Characteristics

High purification efficiency: Effectively remove liquid and solid particles with a particle size of 0.1-20μm. High-energy-consumption type can achieve a dust removal efficiency of over 99.5%.

Wide application range: Suitable for high-temperature, flammable, explosive and harmful gas. It purifies non-fibrous dust that does not chemically react with water.

Diversified functions: It can realize dust removal, flue gas cooling and harmful gas absorption simultaneously.

Simple structure: Small floor space, low investment, safe operation and convenient maintenance.

Application Fields

Mainly used for flue gas treatment of die-casting machines, melting furnaces and incinerators. It is also applicable for aluminum alloy polishing, shot blasting, chemical industry, pharmacy, metallurgy, casting, waste incineration and food processing industries.