Grate Rotary Kiln

Rotary kiln refers to rotary calcining kiln (commonly known as rotary kiln) which belongs to material building equipment. Rotary kiln according to processing different materials can be divided into cement kiln, metallurgy chemical kiln and lime kiln. Cement kiln is the major equipment of dry and wet cement clinker production lines. Rotary kiln is widely used in metallurgical, chemical, refractory construction, environmental protection and other industries. The rotary kiln composed by the cylinder, bearing devices, devices with a gear wheel bearing, gear, activities, kiln, kiln seals, coal burner unit and other components.

The kiln body and the level has a certain tilt, the whole body supported by a roller bearing device, and ran up and down the kiln control block device, the transmission system in addition to set the main drive, but also set up in the main power supply source able to make the kiln off when the rotation, to prevent bending kiln auxiliary gear, kiln, kiln seals use advanced technology to ensure reliability of sealing. 

The cement rotary kiln of our company with solid structure, smooth operation, high quality products out of the kiln, can provide users with advanced high-performance shaft preheater, five stage cyclone preheater.

Working principle of widely used calcination rotary kiln:
CaCO3 is the main ingredient of the limestone, and CaO is the main ingredient of lime. The basic principle of lime burning is to preheat materials with low temperature, quickly burn them with high temperature, utilize the perheater and the kiln to heat the limestone and compose them into CaO and CO2.,

Technological process: At first , preheat the limestone to above 800°C, they will start to compose, And then, they will be pushed into kiln for further burning by the push rod actuator, until the temperature reaches about 1200 °C. Finally, after cooled by cooler, they will be discharged out.

The advantages of widely used calcination rotary kiln:
The dryer has advantages of reasonable structure, high efficiency, low energy consumption and convenient for transportation, and convenient and reliable operation; Therefore, the consumption of the coal and the electricity is lower than the common ones. While the production capacity is higher than 10-15%.

Structure features of widely used calcination rotary kiln:
The kiln shell is made of rolled steel plates; its structure is optimized by computer software, and features" longitudinal flexible and transverse rigid", which improved the loading of supporting device and stability of refractory lining,

The supporting roller bearings features smaller width over diameter ratio L/D, leading to its higher reliability.

The special high-started torque motor for cement industry rotary kiln is applied for driving system.

The sealing of labyrinth plus spring pressing with asbestos heat isolation layers attached, is applied higher so that reliability and longer service life of sealing are achieved.

Rotary kiln is composed of cylinder, gears, support device, kiln liner and kiln tail sealing equipment, kiln head hood and fuel device.

As a heated pivoting part, cylinder is made of highquality carbon steel plate and supported on the support device by wheel belt. There is mechanical or hydraulic pressure catch wheel 

on the first or several support device in order to control the turning of cylinder. Gears make cylinder rotate according to process

required rotating speed through the ring gear in the middle of cylinder. Because of the need of installation or maintenance, the bigger rotary kiln has auxiliary rotary gears, which makes 

cylinder gyrate more slowly. To prevent enter of cold air and dust overflow, the reliable kiln tail and head sealing equipment are installed on feed and discharge end.

Main technical parameters

Company profile

Henan Kuangyan Industrial Machiery Co., Ltd. is specialized in heavy equipment like various crushers, magnetic separators, mining machines, bricks and blocks machines, cement production line, AAC block line, etc., which is located in the middle of China. Our competitive price, high quality products and excellent after-sales service had gain us good reputation in this field.

Our company is headquartered in Zhengzhou Country's High-tech Industrial Development Zone, which consists of three branches, a research and development department. Since the establishment of the company, always adopt advanced modern management system, and focused on innovation, has brought together a number of scientific and technological elite, the company employees is more than 500people now, with 20 senior engineers, and more than 100 midding technicians. The company has long-term cooperation with domestic scientific research units, has introduced advanced technology, technics and testing system at home and abroad.

Our service:

1. Pre-sales services:

   1) Select proper equipment model; 

   2) Design and manufacture products according to clients' special requirement;

   3) Arrange for visiting our factory, assist them to handle relative procedure, such as visa.

2. Services during the sale: 

   1) Make sure goods prepared within delivery time;

   2) Pre-check and accept products ahead of delivery;

   3) Prepare documents required to help customer pass customs clearance;

   4) Help clients to make Project evaluation and feasibility analysis and draft solving plans.

3. After-sales services:

   1) Assist clients to prepare for the first construction scheme; 

   2) Install, debug and examine the equipment; 

   3) Train technical personnel the first-line operators;

   4) Provide technical exchanging;

   5) Offer spare parts at a best price for long term.

Note: Responsible for handling other required matters conforming the state regulations