Bauxite Rotary Kiln For Sale

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Bauxite Rotary Kiln Introduction

Bauxite is a soil mineral mainly composed of alumina. The ranking of alumina bauxite reserves in various countries is as follows: Australia, Republic of Guinea, Jamaica, China, and India. Generally speaking, alumina bauxite is used for the production of alumina or aluminum.

The bauxite rotary kiln is an important equipment commonly used in the bauxite smelting process, mainly composed of a rotary part, a support part, a transmission device, a kiln head cover, a kiln head and tail sealing device, a combustion device, etc. The rotary kiln conducts high-temperature sintering of bauxite raw materials to undergo chemical changes, thereby producing the required aluminum products. The bauxite rotary kiln has many advantages such as easy installation, high temperature resistance, corrosion resistance, and wear resistance.

Bauxite Rotary Kiln Technical Parameters

Product Standard(m）	Kiln Size			Yield(t/d)	Rotate Speed(r/min)	Motor Power(kw)	Gross Weight(t)	Remarks
Diameter(m)	Length(m)	Inclination(%)	t
Φ1.4×33	1.4	33	3	0.9-1.3	0.39-3.96	18.5	47.5
Φ1.6×36	1.6	36	4	1.2-1.9	0.26-2.63	22	52
Φ1.8×45	1.8	45	4	1.9-2.4	0.16-1.62	30	78.2
Φ3.0×48	3	48	3.5	25.6-29.3	0.6-3.48	100	237	Kiln outside decomposition
Φ3.0×60	3	60	3.5	12.3-14.1	0.3-2	100	310
Φ3.2×50	3.2	50	4	40.5-42	0.6-3	125	278	Kiln outside decomposition

Bauxite Rotary Kiln Working Principle

The working principle is to dehydrate and transform the crystal structure of bauxite through high-temperature calcination, generating alumina suitable for electrolytic aluminum or refractory materials industry. This process involves four stages: feeding and preheating, high-temperature calcination, crystal stabilization, cooling, and discharging. The raw material powder is fed into the kiln barrel at the high end of the tail cylinder through the kiln feed pipe, and the material undergoes a composite motion of rolling in the circumferential direction and moving from the high end to the low end in the axial direction. The fuel is sprayed from the kiln head and burned inside the kiln, and the heat generated by the combustion heats the raw materials, causing them to calcine and mature. The hot air formed during the heat exchange process with the material enters the kiln system from the feed end and is ultimately discharged into the atmosphere through the chimney.

Bauxite Rotary Kiln Advantages

Easy to install, simple structure, strong operational stability, high heat resistance, corrosion resistance, and wear resistance. During operation, there is less fuel consumption and good energy-saving effect.
In the main control room, a programmable logic controller (PLC) is used for centralized control, which has a high degree of automation, requires fewer operators, and has stable performance.
Equipped with an automatic oil temperature detection system and an over temperature alarm system, the safety performance of the equipment has been improved.
The calcination process has the characteristics of low pollution, easy maintenance, and high operating rate.