Wireless Concept

For a horizontal rotation furnace equipped with a system gidrouporov. To reduce heat loss the environment and protect the body, the furnace inside is lined with refractory materials. To improve teplomassobmena mounted in the furnace heat exchanger in the form of chain curtains. The furnace operates on the principle of counterflow. C "Cold" end of the kiln is fed raw material in the form of sludge, the "hot" end of the kiln is burning natural gas. As the material in the furnace with a "cold" end to the "hot", it passes through four zones: Zone drying – here is the evaporation of moisture from the sludge, the sludge enters the area with the humidity – 40-42%, in the end zone with chalk humidity 5-12%; zone heating – there is heating the material to reaction temperature thermal dissociation; Zone dissociation – here is the transformation of chalk into lime at temperatures of 1150-1350 C; Zone cooling – is cooled lime flow of cold air.

Next, the lime at a temperature of 600-800 C enters the refrigerator Drum (Length 38.25 m, a diameter of 2.5 m), where it is cooled to 100 C. Handling system with the finished product cooler lime conveyor system is sent to storage. On all nodes hop lime provided air suction to reduce dust in the working area, with its subsequent purification systems aspiration. End reversible belt conveyor allows to distribute the lime in silos according to the quality lime. Silo storage of finished goods warehouse is composed of four reinforced concrete cylindrical tanks with a diameter 12m, height of 13.5 m. The working volume can accommodate up 5000tn lime. Provides shipment finished products in railway embankments and road transport, packing into the soft container capacity from 0.5 to 1 ton in polythene bags of 30 and 50 kg.

Department of flue gas dedusting off-gases removed from the "cold" end of the kiln are two-stage treatment. Initially, the flue gases are preliminary, rough clearing in the dust chambers, then the final in electrostatic precipitators. The degree of purification of 99.9%. Treated exhaust gases are released into the smoke exhauster chimney. Caught in the process of cleaning the flue gas dust containing 30-40% lime and 60-70% of chalk, going into the hopper conveyor system. Secondary production to ensure production of compressed process air compressor station there. As part of the compressor station and a two piston-screw compressor. The production has its rotation cycle. Process water, after cooling jacket housing the furnace and refrigerator, automatically goes into an underground reservoir. From the reservoir water is pumped to the site preparation Cretaceous sludge. "Wet" technology of production of lime is a serious drawback – high fuel consumption per unit of output. This is due to evaporation in a rotary kiln of a large amount of moisture contained in the raw natural and more being added during the preparation sludge. More information about the current situation and outlook for the Russian market of lime can be found in the report of the Academy of IKAR industrial markets "Market building lime in Russia."

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