Dolomite Rotary Kiln_HENAN YUHONG HEAVY MACHINERY CO.,LTD.

Detailed introduction

Introduction

Dolomite rotary kiln is designed according to dolomite calcination characters and Pidgeon process requirement. Dolomite rotary kiln is the key equipment in the calciantion process. The new type energy-saving rotary kiln designed by ZK Corp. has own patent and formed dolomite calcination standard for magnesium industry in China and which is the most suitable equipment for produce magnesium.

Features

1. According to the character of dolomite and its calcination requirement, the structure of kiln inlet and outlet sections has been optimized. It can resolve the problem of material returning back to kiln inlet and the leakage of dust.

2. The dolomite produced by our new type rotary kiln has the advantages of stable quality, high activity and low ignition loss, which can make higher magnesium extraction rate and silicon utilization rate to save running cost.

3. Rotary kiln is even calcination, large capacity and easy to operation and maintenance.

4. Inner of the kiln keeps micro negative pressure, dust pollution is lower.

Working Principle

Dolomite rotary kiln is mainly compose of driving device, supporting roller, catching roller, cylinder, kiln inlet, kiln outlet and sealing device.

1. 2-3 supporting points can guarantee the contacting surface between supporting roller and tyre is paralleled with axis line of cylinder during installation.

2. Supporting device is antifriction bearing (occasionally uses slide bearing). This design has simplified the supporting device of supporting roller, and reduced the useless power loss during operation. It has the features like easy operation and maintenance.

3. Low speed unloading rotation device is designed for easy installation and commissioning. It also can guarantee unloading rotation operation during maintenance of main driving system or other emergency situation. This design can prevent cylinder from bending and deforming during the temperature is cooling down.

4. Mechanical or hydraulic catching roller is optional according to different type of rotary kiln. Both them have high accuracy and reliability, and also make sure evenly attrition of outer circle of supporting roller and tyre at the direction of complete width.

5.Radial direction contacting type sealing device is adopted at kiln inlet and outlet. They are perfect suitable for dimension tolerance of cylinder and skewing movement of cylinder. This sealing device’s feature is good performance, longer working life and easy for replacement.

Technical Parameter

Model	Capacity（t/h）	Rotation Speed (rpm)	Support Quantity	Gear Box	Motor	Power(kw)
Model	Capacity（t/h）	Rotation Speed (rpm)	Support Quantity	Gear Box	Model	Power(kw)
Ø1.6×32m	0.8-1.5	0.58-2.85	3 Groups	ZQ75-50	YCTZ50-4A	18.5
Ø1.9×39m	1.6-4	0.53-1.59	3 Groups	ZQ125-7	YCT315-4A	37
Ø2.2×45m	2.5-8	0.214-1.64	3 Groups	Main ZS125-5 Auxiliary ZQ40-40	Main YCT315-4B AuxiliaryY112M-4	45 4
Ø2.5×50m	7.5-15	0.62-1.5	3 Groups	Main ZS165-5 Auxiliary ZS50-1	Main YCT355-4A Auxiliary Y160M-6	55 7.5
Ø2.8×55m	8.5-17	0.62-1.5	3 Groups	Main ZS165-6 Auxiliary ZS50-1	Main YCT355-4B Auxiliary Y160L-6	75 11
Ø3×60m	17-20	0.5-1.5	4 Groups	Main ZS165-3 Auxiliary ZS50-1	Main ZSN-280-11B Auxiliary Y160L-6	125 11
Ø3.2×50m	20-50	0.788-3.938	3 Groups	Main NZS995-28VBR Auxiliary ZL50-9-2	Main ZSN4-280-21B Auxiliary Y180L-6	160 15
Ø3.6×55m	30-92	0.39-3.9	3 Groups	Main ZSY500-40 Auxiliary ZSY180-31.5	Main ZSN-315-072 Auxiliary Y180L-4	250 22
Ø4.0×60m	32-105	0.39-3.9	3 Groups	Main ZSY630-35.5 Auxiliary ZL65-16	Main ZSN4-355-092 Auxiliary Y200L-4	315 30