Lime Production Line

Lime Production Line is a specialized processing equipment for crushing and calcining raw materials such as limestone and dolomite. It consists of various equipment, including a cooler, feeder, rotary kiln, crusher, preheater, vibrating screen, and can be connected by belt conveyors or other equipment. The complete set of machinery starts from the entry of raw materials like limestone or dolomite into the storage bin and goes through feeding, crushing, screening, preheating decomposition, high-temperature calcination, cooling, and temperature reduction. These series of equipment form a professional production and processing assembly line to complete the lime calcination process.

Category: Metallurgical and mining equipment

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Project Overview

Performance Features

The automation level of the entire production line has achieved full automation, from automatic supply to the completion of producing finished quicklime. Apart from necessary maintenance and repairs of the equipment, the production process runs fully automatically. The limestone is loaded into the storage bin by a loader, and there is a closed-circuit crushing device between the vibrating screen and the crusher in the production line.The complete production line has higher output and lower production costs compared to traditional simple equipment, achieving high profitability. The calcined lime produced has stable calcium oxide content, meeting the requirements and standards of domestic civil engineering construction. Considering the different distribution of resources and composition of limestone and dolomite in various regions, the design of the entire production line takes into account the specifications and uses required by the surrounding market, providing suitable lime processing equipment for enterprise users. Based on the size of the site and the annual mining volume of limestone, we provide users with a complete, reasonable, and cost-effective processing production lines for our clients.

Working principle

The qualifiedlimestone isstored in the storagebin and is liftedby the elevator to the tophopperof thepreheaterThetophopper of the preheater is controlld by two level sensors, controlling the amount of limestone being fed. The limestone is then evenly distributed into different compartments of the preheater through discharge pipes.Inside the preheater, the limestone is heated by the 1150°C kiln flue gas to around 900°C, resulting in about 30% decomposition. It is then pushed into the rotary kiln by hydraulic push rods. In the rotary kiln, the limestone undergoes sintering and decomposition, producing CaO and carbon dioxide. The decomposed lime enters the cooler, where it is cooled to below 100°C by the injected cold air. The hot air, preheated to 600°C through heat exchange, enters the kiln and mixes with the gas for combustion. The exhaust gas is directed into the bag filter through the induced draft fan, and then expelled through the exhaust fan into the chimney.The cooled lime from the cooler is conveyed into the lime finished product storage by a vibrating feeder, bucket conveyor, bucket elevator, and belt conveyor.

Technical Parameter

Design Capacity (t/d)	150	300	6300
Product	Active lime	Active lime	Active lime
Preheater	Vertical Preheater	Vertical Preheater	Vertical Preheater
Rotary Kiln Dimensions (m)	Φ2.5×40	Φ3.3×50	Φ4×60
Effective Volume (m³)	142	292	575
Calcination Temperature	≤1250	≤1250	≤1250
Cooler	Grate Cooler	Grate Cooler	Grate Cooler
Fuel	Coal Gas、Pulverized Coal	Coal Gas、Pulverized Coal	Coal Gas、Pulverized Coal
Heat Consumption (kJ/kg.CaO)	5000-5300	5000-5300	5100

Keywords:

Lime Production Line Metallurgical and mining equipment

Lime Production Line

Power generation equipmentMetallurgical and mining equipmentEnvironmental protection equipment

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+86-13100518958

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