Specifications of Kaolin Rotary Kiln 1. Famous rotary kiln manufacturer 2. 20 years experience 3. full technical support 4. qualified equipments 5. Hot selling! Zhengzhou Zhongke Heavy Machinery Co., Ltd has been one of the largest mining machinery and building material equipments manufacturers in China. It mainly deal with Crushing and screening equipments, Mineral processing equipments, Artificial sand and stone making equipments and AAC equipments,rotary dryer and rotary kiln , Lime and Cement production equipment and other equipments. We welcome all friends from home and abroad to visit our company to check the high quality products. Our service center sincerely hopes that we can have a successful cooperation Rotary kiln is the main equipment for calcining cement clinker and it can be used widely for cement industry, metallurgy industry, chemical industry, etc. The rotary kiln is composed of the shell, the supporting device, the supporting device with thrust roller, the driving device, the movable kiln head, the sealing device at kiln tail, the combustion device, etc. It has the simple structure and reliable operation, at the same the production process of the rotary kiln can be controlled easily. Structure of rotary kiln 1. Support device: advanced shaft structure, automatic temperature measuring device and electrical heating,. 2. Catch wheel : including two kinds mechanical wheel and hydraulic pressure 3. Gears: single or double. Control the rotating speed by buncher, DE machine and frequency variable motor. Be reliable , energy-saving, and efficient. 4. Cylinder tyre bolster: lower bolster has three types: fixed , zoom and floating. The structure is simple , replacement is convenient and wont hurt cylinder. 5. Sealing equipment: there are many kinds for choice according to kiln models, including air cylinder edge sealing, spring edge sealing , graphite block sealing and combination for above. The feather is adaptive for cylinder rotating and swing. And sealing effect is very good. 6. Kiln head hood: including stationary type and flexible type Working principle of the rotary Kiln : Through the technical renovations, the rotary kiln calcining system equipment made has adopted the advanced hydraulic thrust roller device, the high measuring precession plunger pump, the variable speed adjusted valve, the contact graphite block sealing device and the other national advanced technologies. In order to raise up automation degree, the industrial TV has been used at the kiln head for monitoring of kiln, the simulation phosphor screen has been used for display of process flow; the infrared scanning system has been adopted for calcining zone to directly reflect the burning conditions on the computer. With the use of these new of these new technologies, it is direct in vision, convenient in operation and reliable in use. Therefore, the thermal condition can be stabilized and the running rate of equipment can be raised. Compared to same sized equipment, its running rate has been raised 10% up, production has been increased 5-10% and heat consumption has been reduced 15% down. Rotary kiln belongs to building material equipment, which can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to different materials. Cement kiln is used for making of cement clinker and there are dry and wet methods to make cement. Metallurgy chemical kiln is used for magnetic roasting of iron ore and oxidizing roasting of chrome and nickel in the steel factory; baking high-alumina mine in the refractory material factory; baking chamotte and alumina in the aluminum factory and baking chrome ore and chrome powder in the chemical plant. Lime kiln is used for baking active lime and dolomite in the steel factory and ferroalloy factory.
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Scope of application:mainly used in metallurgy, chemical industry, building materials and other fields for calcining materials. Materials: coal gangue, coal kaolin, activated lime, cement, bauxite, hematite,etc.
Coal gangue, also known as coal series kaolin, is an associated mineral of coal and a unique precious resource in China. Although it is available abroad, it has a thin ore bed and no mining value.Coal-based calcined kaolin is praised by the paper and coatings market for its high whiteness and high hiding power, and occupies an important position in the market.At the same time, with the shrinkage of domestic washed soil resources, coal-based calcined soil is increasingly favored by customers.
Coal gangue rotary kiln is a special equipment for calcining coal gangue. The coal gangue calcined by the rotary kiln has its high purity and high calcination whiteness. It is widely used in paper making and coating, especially coated paper and coating The added value of the product is relatively high.Soft kaolin and sandy kaolin are mainly used in paper coating and ceramic industries.
The coal gangue rotary kiln operates under heavy load and alternating speed at high temperature, and the level of its accessory equipment maintenance and thermal system control is related to the efficiency of the rotary kiln operation.The main points of the maintenance of the transmission device are the lubrication of the equipment, the running state, the dynamic detection and the meshing accuracy of the large and small gears; the installation accuracy of the supporting device determines whether the rotary kiln can operate reliably. The layout of the supporting wheel, the upward and downward pressure and time of the hydraulic stop wheel, the force of the supporting wheel, the gap between the wheel belt and the backing plate.The quality of the sealing device directly affects the thermal engineering system and operating cost of the rotary kiln.Strengthening the daily maintenance data sorting and analysis of kaolin rotary kiln is conducive to equipment management.
In the process of coal gangue rotary kiln, raw meal powder is fed into the kiln tube body from the lower discharge tube at the upper end of the kiln tail tube body. Due to the inclination and slow rotation of the kiln tube body, the material is rolled in the circumferential direction In the compound movement of moving from high temperature to low end along the axial direction, the raw meal is decomposed and fired in the kiln through firing and other processes. After firing the cement clinker, it is discharged from the bottom end of the kiln barrel and enters the cooling machine.Fuel is injected from the kiln head and burned in the kiln. The heat generated heats the raw meal to make the raw meal calcined into clinker. The hot air formed during the exchange of materials with the kiln feed end enters the kiln system. From the chimney into the atmosphere.
1. The ultra-fine kaolin technology of Kaolin rotary kiln represents the development direction of ultra-fine kaolin calcination technology. This calcination technology has the advantages of low energy consumption, high yield, and stable performance. 2. The Kaolin rotary kiln has the features of ultra-fine grading size, high precision, large processing capacity, low energy consumption per unit of product, high efficiency, which has been utilized to a great extent. 3. High crushing ratio and processing capacity, low energy consumption per unit of product, high efficiency, widely used.
1. The ultra-fine kaolin technology of Kaolin rotary kiln represents the development direction of ultra-fine kaolin calcination technology. This calcination technology has the advantages of low energy consumption, high yield, and stable performance.
2. The Kaolin rotary kiln has the features of ultra-fine grading size, high precision, large processing capacity, low energy consumption per unit of product, high efficiency, which has been utilized to a great extent.
Kaolin rotary kiln is the main equipment for the kaolin calcination. Kaolin rotary kiln is also called Kaolin calcination kiln, which could be used in the calcination process of zinc oxide, magnesium oxide, bauxite etc. Kaolin rotary kiln by ZK Corp has the following features, high productivity, simple structure, and easy operation etc.
The finished products calcined by Kaolin rotary kiln could be used as the mineral raw material in paper, ceramics, rubber, chemicals, coatings and other industries. Some high-tech fields began to use kaolin as the new materials. In addition, the high temperature resistant porcelain parts of space shuttle and spacecraft are also made up of kaolin.
4. 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.
5. 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.
6. 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.
7. 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 devices feature is good performance, longer working life and easy for replacement.
The calcination process system and process calcinator, which are determined by the classification of coal series clay, soft and hard soil can realize the fast decomposition, slow redox and drying use of heat source. The composite calcination kiln developed by our company is a kind of new advanced process equipment, which is according to kaolin clay calcination process.
The composite kaolin calcination kiln is mainly composed of three parts. Drying part: dynamic pre-decomposition kiln and rotary decomposition-reduction kiln, use the exhaust of decomposition-reduction kiln as the heat source of dynamic pre-decomposition kiln and drying equipment to realize energy utilization, and it can calcinate ordinary soil, double-90 kaolin clay and cable-level kaolin clay.
Adopt internal combustion rotary kiln, the hot air generated by taking gas and oil as heat source enters into the kiln, and calcine the kaolin clay after drying and pre-decomposition in weir kiln, and then the exhaust is discharged through the dryer of pre-decomposition.
AIMRs Refractory Grade Fireclay (Calcined Kaolin) is considered one of the lowest cost refractory clays in the middle east which makes it the favorite grade for Alumina refractories manufacturers in Europe.
The Alumina content Al2O3in our Refractory Kaolin reaches levels up to 41% after it passes through rotary kiln (calcination process) which makes it the perfect binder chamotte for refractories industry production with the lowest Alumina unit cost in the whole region.
AIMR supplies the optimizedchamottefor refractories industry which have a high control of chemical properties; providing our partners a rich Al2O3bulk kaolin or sieved ready-to-use China Clay which refractories manufacturers can rely on
AIMR committed and dedicated technicians, mining and production engineers are engaged in each step of the extracting and developing of our raw Egyptian kaolin from its early beginnings, till it reaches our customers warehouses whether in its bulk status, packed in jumbo bags, calcined or sieved on a pre-requested mesh (micron) size, in a time frame and quality standards which AIMR always insure to fulfill its customers satisfaction.
Our raw kaolin for the refractories applications comes directly from our mines located in the top region for refractory clays in Aswan, Egypt. Our production of kaolin open-pit mines exceeds 70,000 tons. The raw kaolin is then transported to our facility in Alexandria for the calcination process.
Using extremely high temperatures reaching 1400 C in 92m long rotary kiln to remove some unwanted elements and to alter the properties of minerals, the calcination of kaolin generally increases hardness and alters the electrical properties of the material. The process also leaves the Kaolin anhydrous (without water).
Depending on your countrys regulations and restrictions, we can come up with a solution and packaging option to deliver your clay safely and efficiently with the most convenient way to your refractories production process.