Rotary Kiln for Cement, Lime, Iron Ore Powder, Refractories
Application and operating principle:
The rotary kiln is central equipment for cement clinkering system in the new large dry processing cement production, which also can be used for calcination active carbon, ceramsite sand, bauxite, Kaolin, zinc oxide ans so on. It can be used with unit-or-twin-stream preheater, calcining combustor. 90%-95% of the raw material which has been pre-calcined feeds into the slow rotating, inclining installed rotary kiln from the rear. Under the composite effect of circumferential tilting and axial movement, the material slowly flows through the whole drum, the fuel (coal dust, oil or natural gas) sprays from kiln head into high temperature zone for burning, which produces the required heat for physical and chemical reaction of combination and crystallization of material inside the kiln. Under the function of rear blower, the burning gas stream and material counter flow the whole kiln, completing heat exchange and physical/chemical reaction. The clinkered cement is discharge to the cooler.
Characteristics of rotary kiln:
The kiln body is made of high-quality killed carbon steel or alloy steel plate and welded;
The supporting type and rollers is of ZG35CrMo and 42CrMo steel;
The sliding bearing is of non-scraping liner one with large clearance;
The driving device adopts hard-toothed reducer, flexible sheet coupling, driven by DC motor;
Hydraulic thrust roll is used;
The kiln head and rear seal is of pneumatic or scaled type;
With slow speed drive.
Technical parameters of rotary kiln:
Complete supply scope of rotary kiln:
|Model||Parameter||Main Motor||Trust Roller Type||Supporting Type||Weight t|
|Speed r/min||Inclination %||Capacity t/d||Power kW|
|Φ6×90||max3.5||4||10000||845 ×2|| |
It composed of kiln rear seal, supporting device, drum unit, driving unit, supporting device with thrust roll, hot kiln hood, hydraulic system for thrust roll (without refractory material) Electric control system can be supplied as customer's request.
Brief introduction of our company rotary kiln:
CITICHL is one of the largest design and manufacture enterprises for rotary kilns in China, which started producing in 1950s. We have totally produced more than 250sets of rotary kilns including dry, semi-dry and wet ones used widely in cement, metallurgical, chemical industry, refractory, active lime, paper-making etc. Specifications are from Φ1.2 to Φ6.1m. They have been exported to Thailand, Pakistan, Indonesia, Vietnam etc.
Our company has absorbed technologies from famous international companies such as Smidth, Polysius, KHD, etc. In recent years along with the advances in cement producing, cooperated with design institutes in Tianjin, Nanjing etc, developed new large serial products of dry processing rotary cement kilns, matching 1000-5000t/d large and 8000-10000t/d extra-large cement production line. There have been nearly hundred sets put into operation in the cement plants of Anhui, Hailuo, Jilin Shuangyang, Indonesia Kupang etc.
Our company has the first-rate group on rotary kiln development, study and design, perfect experiment and testing measures, and superior manufacturing equipment and technology for large rotary kiln, while has formed the complete technical and producing system on the design, manufacture, installation, commissioning service for the equipment.
Production field picture of rotary kiln:
CITICHL Heavy Industries CO., LTD. The former was CITIC Heavy Machinery Co., Ltd. It was used be subsidiary of CITIC heavy machinery co., ltd. The company was founded in 1981 and finished joint stock reform in 2005, which is located in Luoyang city, capital city of nine dynasties in ancient times.
With a garden-like industrial park and modern standard plant covering 80000 square meters, CITICHL possesses advanced equipments, technologies and detecting methods. After more than 30 years development, the company has developed into a collectivized one with product designing, manufacture, installation and technical services.
The products comprise all the equipments used in mining, ore dressing, hoisting, coal preparation, crushing and grinding, cement plant, metallurgic and steel rolling, environment protection, and also power generator, heavy-duty gear reducers and large-sized castings and forgings, etc.
CITICHL is national major industry and heavy machinery manufacturing base in the middle of china, we can supply the customers with important complete technical equipments in mining, non-ferrous metal, chemical industry, metallurgy, construction materials, environment protection, and power generating as well as other basic industries. The company can accept the packed engineering project. Our products are sold well to countries and regions in Asia, Africa, Europe, and Australia, and hold a large market share home and abroad.