Removal of liquid and solid aerosols from process gas and aspiration air by electrical precipitation and inertia separation

“Giprogazoochistka” LLC holds leading positions in the field of design and construction of units and plants for removal of liquid and solid aerosols from process gas and aspiration air by electrical precipitation and inertia separation for enterprises in all branches of industry: ferrous and non-ferrous metallurgy, power engineering, construction materials industry, chemical industry, machine building, paper-and-pulp industry, etc.

For ferrous and non-ferrous metallurgy enterprises the company develops new units and revamps the existing ones:

• for blast-furnace process gas cleaning;
• for casthouse and blast furnace bin trestle aspiration air cleaning;
• for cleaning the process gas and aspiration air of steel manufacturing process in Martin furnaces, electric arc furnaces and converters;
• for cleaning the process gas and aspiration air of agglomerate and steel pellets manufacture ;
• for cleaning the process gas of alumina, aluminium, lead, zinc, nickel, copper and other nonferrous metal manufacture;
• for cleaning the off-gases generated in manufacture of refractory materials, lime, dolomite, and magnesite;
• coke and by-product process gas cleaning.

For power engineering enterprises:

• ash removal from flue gases of steam boilers at electric power stations and small boiler houses;
• removal of sulphur dioxide and nitrogen oxides from flue gas.

For building materials industry:

• treatment of process units off-gas generated in manufacture of cement, glass, gypsum, ceramics, keramzit, asphalt, etc.
• cleaning of aspiration systems air of coolers, mills, dust handling systems, etc.

For machine-building plants including the automobile ones:

• foundry gas and aspiration air cleaning;
• machine works aspiration air cleaning;
• gas cleaning in the coating application areas.

For chemical industry:

• technical carbon production gas purification;
• electrode production gas purification;
• trapping of sulfur acid aerosols at wet catalysis units;
• gas purification at production of contact and tower sulfuric acid;
• gas purification at sulfuric acid concentration;
• gas purification at sewage burning;
• recuperation of volatile solvents from emissions of various production facilities.

Russian and foreign-made equipment of various configurations is used in the projects: state-of-the-art electrical filters and bag-type filters, cyclones, gas scrubbers, new types of power supply units and draft equipment, different types of dust handling systems and automated control systems for gas treatment units.

In the course of retrofitting the existing units various solutions can be offered for each specific case to reduce concentration of harmful components depending on gas parameters and conditions:

• equipping of industrial units operating in space-limited environment with state-of-the-art dust collecting units and maximum use of existing building structures;
• revamping of existing cleaning systems with a view to increase their operating capacity and reduce residual dust level;
  complete replacement of electric filter internals and body;
• replacement of internals with partial or complete replacement of plating of electric filter housing;
• replacement of electrical filter internals with application of bigger size electrodes while enlarging the side walls, and replacing the housing cover;
• installation of combined filter comprising electric fields and bag filter in the existing housing of electrical filter;
• replacement of electrical filter with bag filter;
• replacement of power units with new ones or replacement of control system only;
• continuous control of residual dust level in the treated gases and upgrading of consumed utilities metering units;
• equipment of gas cleaning units with industrial high level automated systems and their integration with basic production APCS.