Rotary Calciner Kiln For Quicklime Poruction Plant

Quicklime production plant, also know as quicklime manufacturing plant, lime production plant,active lime production plant, active lime manufacturing plant, active lime calcination plant,it includes the lime stone crushing and screening system, lime stone calcination process, and cooling system. the main equipment is the rotary calciner which calcines the limestone at high temperature.quicklime can either be used for hydrated lime production, or used for paper making industry or agriculture field to modify the property of the soil.

Rotary Calciner Kiln, also know as lime rotary kiln, rotary calcination kiln, it`s used to calcine the limestone aggregate into quicklime or lime, the equation goes like: CaCO3=CaO+CO2, the lime is the raw material for hydrated lime production, for a quicklime manufacturing plant, it needs to crush the limestone into small lump ranges 10-50mm first, then feed the lump to the quicklime rotary calciner for calcining process at 1350 Celsius degree to make sure the limestone is decomposed into lime and carbon oxide, and it needs a cooling machine to cool the lime, it can use either vertical cooling machine or grate cooling machine. Then after screening process, the lime will be separated into lime lump and lime powder and transported to their silo respectively. And it needs to add dust collector at the top of the silo to protect the environment pollution.

Before the lime rotary calciner, it usually needs to use a vertical preheater device to further absorb the heat from the lime rotary kiln, after heat exchange, the temperature of the limestone can reach about 700-900 Celsius degree and some amount of limestone begins to decompose into calcium oxide and carbon oxide. So the efficiency of quicklime production plant is highly improved by adding the vertical preheater device.

For the production capacity of quicklime production plant, it can be from 50 t/d to 1000 t/d, the fuel can be coal, gas, LPG, diesel, etc.

A lime rotary calciner mainly consists of drum shell, supporting roller, riding tyres, thrust roller, transmission system.

Main technical parameter of lime rotary calciner for quicklime manufacturing plant process.

Model	Diameter (mm)	Length (mm)	Specifications				Drives		Weight (T)	Products
			Yield (t/d)	Inclination %	Number of support	Speed (r/min)	Type of reducer	Power (kW)
φ1.9x18m	1900	18000	190	3	2	0.6-3	ZSY224	22	38	Gypsum
φ2.1x30m	2100	30000	70	3-5	3	0.1-1.05	ZQ75	22	74	Nonferrous metal
φ2.14x23m	2140	23000	240	3	2	0.6-3	ZSY250	37	55	Gypsum
φ2.2x36m	2200	36000	75	3-5	3	0.1-1.05	ZQ75	3	87	Nonferrous metal
φ2.4x34m	2400	34000	88	3-5	3	0.1-1.05	ZQ75	30	102	Nonferrous metal
φ2.8x55m	2800	55000	300	3-5	3	0.1-0.50	JH400D	30	196	Nonferrous metal
φ2.84x44m	2840	44000	310	3-5	3	0.3-1.2	ZS145	45	176	Nonferrous metal
φ3.2x50m	3200	50000	1000	3-5	3	0.5-3.1	ZL130	125	307	Cement clinker
φ3.3x52m	3300	52000	1200	3-5	3	0.6-3.2	ZSY995	160	320	Cement clinker
φ3.5x52m	3500	52000	2000	3-5	3	0.46-1.38	ZSN-280	170	350	Cement clinker
φ3.5x60m	3500	60000	300	3-5	3	0.46-1.38	ZSY500	220	380	Active Lime
Φ4.0x60m	4000	60000	2500	3-5	3	0.39-2.38	ZSY630	315	488	Cement clinker
Φ4.3x60m	4300	60000	3000	3-5	3	0.46-1.38	ZSY710	420	598	Cement clinker

Advantages of lime rotary calciner(active lime calcining equipment):
1. High productivity makes it possible for our lime rotary kiln to be used in large active lime production line.
2. Open-type calcining rotary kiln has a simple structure, and can discharge sulfurous gases timely, which makes it quite suitable for steelmaking.
3. It is capable of calcining 10 to 50mm fine limestone directly.
4. Vertical preheater has been equipped at the end of the kiln to make full use of high-temperature gases generated during calcining. It can preheat limestone to the decomposition

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