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Rotary scrubber

Rotary scrubber

Two-line rotary scrubbers for gas cleaning of chemical production

Two-line rotary scrubbers for gas cleaning of chemical production

Rotary scrubber for removal of dust and droplets (production of ammonium sulfate)

Rotary scrubber for removal of dust and droplets (production of ammonium sulfate)

Injector head

Injector head

Rotary scrubber for flue gases cleaning

Rotary scrubber for flue gases cleaning

Rotary scrubber shell (casing)

Rotary scrubber shell (casing)

Rotary scrubber internal structure

Rotary scrubber internal structure

The contaminated gas enters the rotary scrubber tangentially at the bottom part of the apparatus. Under the action of centrifugal force starts the capture of the largest particles of the gas phase. Then the gas flow passes the section of the vanes, which increases the rotation speed of the gas phase creates a turbulent regime, greatly increasing the surface mass transfer and convective diffusion.

Scrubbing liquid is fed over the guide vanes, the interaction of the gas and liquid phases is carried out in counterflow. Next, the gas stream increases the speed of rotation and interacts with the particulate phase of the scrubbing liquid spray spray device that enables fine purification of the gas phase. Caught thus, contaminants contained in the droplets of scrubbing liquid are discarded to the walls of the scrubber where the flow into the circulation tank and then circulating pump scrubbing liquid is re-fed to irrigation. If necessary, is added to makeup water.

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Advantages:

  1. High separation efficiency, fine purification

  2. Stable operation by the gas flow fluctuations

  3. Low hydraulic resistance

  4. Low operating costs

Scope of application:

  • mining processing industry, metallurgical industry

  • chemical, petrochemical and related industries - recovery of aerosols (aerosol capture) and adsorption of contaminants (pollutants)

Scheme of gases purification after pyrolysis process


Design features and principle of operation our proposed rotary scrubber:

Sequential contact of gas and liquid phas

At the first stage, the coarse particles and droplets due to the tangential flow of the gas phase and irrigation of swirl flow devices. In the second stage the formation of fine-dispersed environment with a highly developed surface for absorption of submicron particles and gaseous compounds, due to a special spray device and of the contact phase. At the final stage, the coagulation of the droplets and the increase in circumferential speed of the gas flow, leading to separation of the droplets with the contaminated substances through internal devices that provide the described hydrodynamic mode

Adsorbtion and dust collection simultaneous processes

Zoning areas of gas and liquid contact allows you to efficiently catch large particles, then small, and also to carry out the absorption of gaseous compounds

Stable operation with high viscosity, colistimethate substances (efficiency of 99.999 %)

The rotary spray device, no dry areas at high circumferential speed of the gas flow, creating a fine environment – all this provides a stable and efficient operation of rotary scrubber in the purification of gas emissions from chemical and petrochemical plants, containing a viscous, resinous contaminants (for example, the production of rubber, oil refining, etc.)

Implemented projects

System parameters: capacity of 30 000 nm<sup>3</sup>/h, temperature 90C.

System parameters: capacity of 30 000 nm<sup>3</sup>/h, temperature 90C.

Rubber production in petrochemical industry.

Technological scheme includes:

  • dust particles, drops of fatty acids capture and neutralization of the acidic mist in a 2-stage rotary scrubber
  • cleaning of scrubbing liquid from the fatty acids.

Increase profits by

6%

 

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