Venturi scrubber
Venturi scrubber effectively combines the capabilities of cooling and cleaning of high dusty emissions. The Venturi scrubber with centrifugal droplet separator cleans the gas from micron and submicron particles with efficiency up to 99.9 %. The unique design of the offered Venturi scrubber is the ability to adjust the speed of the gas-liquid flow, and thus flow resistance in the throat of the Venturi scrubber, by varying the cross section through a drive with a gear lift. Thus achieved the desired efficiency of cleaning by creating the necessary size of the drops that are guaranteed to absorb contaminants and are separated from the gas stream. Due to the design of the scrubber and rational distribution of gas-liquid flows creates a turbulent regime and a highly developed contact surface, which allows effectively to absorb gaseous contaminants.
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Advantages:
Stable operation with fluctuations of the gas flow
Steady work with sticky, sticky dust
Gas flows with a temperature of over 1000 °C cooling
Low operating costs
Scope of application:
coal dust and other dust species
dust food enterprises (tobacco manufacturing, sugar, etc.)
dust, smoke after incineration furnaces, etc.
metal oxides, heavy metals
salts (nitrates, sulfates, carbonates, chlorides) of the enterprises of mineral fertilizers, etc.
dust from the enterprises for manufacture of building materials
organic dust from pharmaceutical companies
acid mists at the chemical and petrochemical enterprises
Scheme for dedusting hot gases
Design features and principle of operation proposed by us Venturi scrubber:
Gas and liquid streams feeding method
Process set efficiency maintaining / the predetermined process efficiency (> 99 %)
Guaranteeing separation of drops
Waste water minimization
Cooling in a venturi scrubber
Implemented projects
Scrubbers material: stainless steel and Hardox
Systems for wet cleaning of gases after the converters and blast furnaces.
Equipment's modernization of the old factory - gas cleaning after the blast furnaces.
System parameters: gas capacity- up to 60 000 nm3/h, temperature of gas phase - up to 350 °C, dust content of the gas phase up to 120 g/nm3.
Results: reduce dust levels to < 20 mg/nm3, ensuring a constant efficiency and the hydraulic resistance at high fluctuations of gas.
Scrubbers designed and tested for pressures greater than 2.5 ATM (overpessure)
Systems for wet cleaning of gases after the converters and blast furnaces.
Equipment's modernization of the old factory - gas cleaning after the blast furnaces.
System parameters: gas capacity- up to 60 000 nm3/h, temperature of gas phase - up to 350 °C, dust content of the gas phase up to 120 g/nm3.
Results: reduce dust levels to < 20 mg/nm3, ensuring a constant efficiency and the hydraulic resistance at high fluctuations of gas.
Coarse dust removal in the cyclone group with the special lining
Systems for wet cleaning of gases after the converters and blast furnaces.
Equipment's modernization of the old factory - gas cleaning after the blast furnaces.
System parameters: gas capacity- up to 60 000 nm3/h, temperature of gas phase - up to 350 °C, dust content of the gas phase up to 120 g/nm3.
Results: reduce dust levels to < 20 mg/nm3, ensuring a constant efficiency and the hydraulic resistance at high fluctuations of gas.
Final cleaning and cooling of gases in a Venturi scrubber with adjustable throat
Systems for wet cleaning of gases after the converters and blast furnaces.
Equipment's modernization of the old factory - gas cleaning after the blast furnaces.
System parameters: gas capacity- up to 60 000 nm3/h, temperature of gas phase - up to 350 °C, dust content of the gas phase up to 120 g/nm3.
Results: reduce dust levels to < 20 mg/nm3, ensuring a constant efficiency and the hydraulic resistance at high fluctuations of gas.
Providing a residual dust content of less than 10 mg/m3 including recovery of petroleum products
The process simulation of gases purification from dust particles and oil products after lime furnaces.
Simulation using experimental data allowed us to solve the simultaneous trapping of dust particles and oil products, condensed in the form of drops.
There was selected a hydrodynamic regime that allows implement the gas phase aftercooling to 35C.
Providing a residual dust content of less than 10 mg/m<sup>3</sup>
Venturi scrubber in the production of mineral fertilizers.
For processing departments aspiration has been used a Venturi scrubber with adjustable throat and the centrifugal droplet separator.
System parameters: capacity from 7 000 to 145 000 nm3/h, temperature from 60 to 190 °C, the concentration of dust particles of fertilizer to 17 g/ nm3.
Maintaining a constant cleaning efficiency regardless of the gas flow.
Venturi scrubber in the production of mineral fertilizers.
For processing departments aspiration has been used a Venturi scrubber with adjustable throat and the centrifugal droplet separator.
System parameters: capacity from 7 000 to 145 000 nm3/h, temperature from 60 to 190 °C, the concentration of dust particles of fertilizer to 17 g/ nm3.
1st and 2nd stage of concentration in the Venturi scrubber with adjustable throat (neck) and a centrifugal scrubber as mass transfer and separation stage at the same time.
Project on utilization of hot gases containing chlorine in the production of silicone products
The performance by the cleaned gas is 10 000 m3/h, the temperature of the gases at the inlet 150 °C, the pollutant: dust up to 1 g/m3, vapour of HCl up to 150 g/m3, gaseous Cl2 up to 10 g/m3. Results: getting a 28-33 % of HCl as product disposal emissions, residual Cl2 in emissions less than 5 mg/m3 residual content of HCl in emissions is below 10 mg/m3
Increase profits by
29%
Wet Venturi scrubbers for gas cleaning from benzoic and terephthalic acids