Detailed introduction of the product

Brief introduction of active limestone technical process;

Active limestone production line is composed of three main machineries-vertical preheater, rotary kiln and vertical cooler, waste gas processing system and pulverized coal preparation system.

The qualified crushed limestone is kept in bunker, and transported into the top bunker of preheater by transporting system. The charging quantity of the preheater top bunker is controlled by two level indicators upper and lower, then through the feeding tube distribute the limestone uniformly into every room of the preheater.

The limestone heated by the high temperature flue gas in the tail of rotary kiln, then pushed back into the rotary kiln by hydraulic push rod. The limestone is calcined in the rotary kiln under high temperature, then invert into active limestone and enter into the cooler, it will be discharged after cooled by the cooling air. Through the secondary air by preheated entre into the kiln, the exhaust gas will be discharged by the exhaust treatment system.

Rotary Kiln Product application:
Rotary kiln is a kind of thermal equipment, heating materials. It is widely applied in the fields of cement building materials, nonferrous metallurgy, ferrous metallurgy, refractory material, chemical materials and paper making.

Structure of Rotary Kiln:

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 high-quality 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.

Rotary Kiln Working principle:
The kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner-pipe (or "firing pipe") which acts like a large bunsen burner. The fuel for this may be gas, oil or pulverized coal.

Main technical parameters

Company profile

Henan Kuangyan Heavy 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