Промышленная Вращающаяся печь для обжига известняка

Description of Rotary Kiln

Rotary kiln according to different processing materials can be divided into cement kiln, metallurgy chemical kiln and lime kiln. Cement kiln is mainly used for calcining cement clinker, cement kiln include dry process production and wet process production. Metallurgy chemical kiln is mainly used in metallurgical industry steel mills lean iron ore magnetization roasting; Chromium, nickel iron oxidizing roasting; Refractory plant roasting high alumina bauxite mines and smelters clinker calcined and aluminum hydroxide; Chemical plants such as roasting chrome ore and chromium ores in mineral lime kiln used for roasting plant, ferroalloy plant with the active lime and calcined dolomite.

Working Principle

The main part of the ebullience calciner is composed of small-diameter cooling coil pipes. The 

heat transfer oil is piped into coil pipe and releases the heat into the furnace after exchanging 

heat. Roots blower is equipped at the bottom of the ebullience calciner, which can blow the cold air into the furnace, making the powder boiling in the furnace. And at certain temperature, the 

powder, which has been dried, becomes light that it can flow to the outlet automatically. The 

quality of the gypsum powder produced in this way is better and the content of crystallization 

water is high, and easy to control the time of solidification. In addition, the machine is equipped with dry electrostatic precipitator, and the dust removal efficiency reaches over 95%, eliminating the dust pollution. 

The structure characteristic of rotary kiln

1. The rotary calcining kiln shell design fully take into consideration of the corner at shell flexible supporting to extend the lifetime of refractory bricks and castings.
2. Adopt supporting roller bearing with big diameter and small ratio between length and diameter to improve the reliability. The bearing is automatic self-sligning bearing.
3. The better sealing effect of new type open gear hood sealing type.
4. The spring lamination overlying type lexible sealing, double layer spring lamination sealing increase the heat insulation layer to improve the reliability and lifetime.

Pre-sale services,we do

Act as a good adviser and assistant of clients; enable them to get rich and generous returns on their investments;

1. Select equipment model;
2.Sdeign and manufacture products according to clients' special requirement;

3. Train technical personnel for clients.

Services during the sale,we do

Respect clients; devote ourselves to improving the total value of clients.

1. Pre-check and accept products ahead of delivery;
2. help clients to draft solution.

After-sales service,we do

Provide considerate services to minimize clients' worries.

1. Assist clients to prepare for the first construction scheme;
2. Install and debug the equipment;
3. Train the first-line operators on site;
4. Examine the equipment regularly;
5. Take initiative to eliminate the troubles rapidly at site;
6. Distribute the guarantee fittings door-to-door;
7.provide perfect service;
8. Provide technical exchanging;
9. Provide maintenance for big items.

Our Company Philosophy

Best Quality for Market

Perfect Service for Clients

Scientific Management for Benefits

Good Credit for Development

Gongyi Derui Machinery Co., LTD entered the mechanical industry from the beginning of the 1980’s, earlier than most factories. With the company philosophy these years, our products are sold to many customers from home and abroad, popular in India, Russia, Kazakhstan, Africa, South America, Mid-East, Southeast Asia, and almost 30 countries and areas. And it is our honor to make a contribution of to the development of these countries.

Growth is only a process, and the brilliance is the new beginning. In order to respond positively to the good policy of The Belt and Road, we will, as always, provide higher and higher quality products and service, to win more and more acclamation and respect for Chinese national industry. Review ourselves with serious attitude, and win the trust with excellent quality. We sincerely hope to take win-win cooperation with entrepreneurs and companies all over the world, to develop the market together.