As the leader in the field of Chinese pellet engineering and technology, Beijing Shougang International Engineering Technology Co., Ltd (hereafter referred to as BSIET) with its complete technical equipment shall, by way of the optimized proposal, be willing to provide the customers in the world with such services as consultation, design, general contract, technical equipment manufacture and management in pellet engineering. With a rich experience of the design and construction of grate-kiln pellet production lines, recently, 20 users at home and abroad have been provided with almost 30 sets of design and renovation project for pellet production line. The annual capacity of pellet production is over 40,000,000t.

 Leading the Chinese pelletizing technologies to progress and by way of close integration of the production practice, BSIET has creatively developed and applied many significant new technologies that have become the proprietary pelletizing technologies with company characteristics and establish a pellet laboratory of its own. 

BSIET, in 2000, was the first to successfully develop the travelling grate-rotary kiln-annular cooler pelletizing technology that filled the blank of large-scale pelletizing technology in China and designed, built up in China the first 1.2MTPA travelling grate- kiln-annular cooler pellet production line that was awarded the 1st prize of the national metallurgical science and technology.

In 2006, BSIET completed engineering of the first grate-kiln-annular cooler with all-hematite material for a customer in India, which was put into production in 2008.

In 2008, cooperating with foreign companies, BSIET completed the design of the first 4.00MTPA straight grate pelletizing production line in China, which was put into production in August 2010.

BSIET owns many patent technologies and proprietary technologies of non-standard equipment for the pellet production, for instance, semi-suspension driving support technology, flexible grate bed technology, protection device on head of traveling grate, scrapper technology, automatic resetting and detecting devices of grate plates, replaceable pad technology for rotary kiln, protection ring technology at discharge end and charge end of rotary kiln, feeding hopper and lower sealing technologies for annular cooler, etc.

1) Flexible grate bed technology of travelling grate - National invention patent

 

Solve the desynchrony of multi-row chain link of grate bed and reduce the stress on chain link; Reduce the weight of key equipment parts and save the amount of heat-resistant steel.

2) Scraper of grate device - Proprietary technology

 

Adopt reasonable structure and entrance angle, high temperature oxidization resistance and wear-resisting materials to reduce the leakage quantity of scraper plate and extend its working life with an easy maintenance.

3) Changeable float type shim iron device of rotary kiln body - Effective protection of the body for easy installation and replacement

4) Rotary kiln hydraulic thrust roller technology – Automatically adjust the rotary kiln position and extend its working life

5) New grizzly for rotary kiln – Improve the working environment and extend its working life 

 

Seamless steel pipe is adopted for all water lintels of this grizzly to avoid the fault that the grizzly is easily broken under high temperature using the previous type of steel plate welding, avoid the downtime caused by water leakage and reduce the maintenance workload at the same time.

6) Shuttle distributor dedicated for pellets - Proprietary technology 

 

Optimize the distribution process, reduce the falling times of green balls and improve distribution effect. It has been successfully applied for the 504m2 straight grate induration machine project in Shougang Jingtang iron & steel plant with a good result.

7) Technology of sealing rubbers under annular cooler – Patent technology

 

With the advantages of simple structure, small friction coefficient, long working life, easy installation and maintenance, good sealing effect, etc. Friction plates are made of special wear-resistant material and fit against the rotary part by means of an elastic support to ensure a tight sealing on the sealing surface and effectively prevent the annular cooling blower from air leakage.
This device has been applied in the annular cooler of Jilin Tianchi mining pelletizing project for nearly 2 years, and the sealing effect is still very good, which has been praised by the owners and has been promoted at present.

8) Application of hydraulic motor 

 

The hydraulic motor has characteristics of stable driving and reliable performance and can reach stepless speed regulation. Hydraulic motors are used to improve the starting characteristics and overload capacity, improve the pellet production line availability and reduce the maintenance workload.

9) Integrated technical equipment

 

Thermodynamic calculation and thermal balance of analysis travelling grate- kiln-annular cooler pellet production line
Process, design, test and equipment configuration of flux pellet production;
Process, design, test and equipment configuration and design and research of non-standard equipment of hematite pellet production;
Refractory design and research of pellet production line sections (travelling grate, rotary kiln, annular cooler and hot blast duct);
Large balling disc, such as φ7.0m, φ7.2m and φ7.5m is firstly developed and applied in the pellet production line.
Process layout and optimization and innovation of travelling grate building;
Innovation for the design of dedusting and dry and bulk material treatment inside the travelling grate building, and adopting new equipment and process arrangement;
Adopting inner blending fuel design and research for hematite pellet production process;
Waste heat recovery is adopted for pelleting annular cooler;
Thick phase pneumatic dust conveying is adopted for process and room dedusting inside the pellet plant.

BSIET firstly carried out the design and research of pelletizing production process technique by travelling grate machine cooperating with foreign company. Together with OUTOTEC, BSIET jointly design the 504m2 straight grate induration machine project in Shougang Jingtang iron & steel plant, which is the largest in China and enriches the pellet technical reserve of itself. This project has put into production smoothly at present.

 

The straight grate has the following technical characteristics:
The process flow of drying and preheating, indurating and cooling is carried out in one equipment, which is easy, reliable with easy operation and maintenance, high heat efficiency and big capacity of one unit.
It is particularly suit for pellet production with hematite raw material;
Multiple gas nozzles is used for preheating zone and induration zone for the accurate control of temperature and cleaning of main line environment;
The refractory of upper hood stay still with no direct connection with pellet, no mechanical wear, no rapid change of temperature and no hot crack, so as to reduce the dust load;
The pallet can be maintained off-line to reduce downtime and increase the availability;
The waste fume circulation of cooling zone returning to indurating zone and [preheating zone has less heat loss and lower operation cost.

    

2.00MTPA Pelletizing Project, Chengde Xintong Shoucheng Mining Co., Ltd

 

Scale: 2.00MTPA 
Travelling grate: 4.5X60m
Rotary kiln: Φ5.9×40m 
Annular cooler: 128m2
Startup date: February 2006 
Characteristic: It has smooth process arrangement，reasonable equipment configuration and high production efficiency.

    

Shouqin Longhui 2.00MTPA Pelletizing Project

 

Scale: 2.00MTPA 
Travelling grate: 4.5X60m
Rotary kiln: Φ5.9×40m 
Annular cooler: 128m2
Startup date: June 2009 
Characteristic: With smooth process arrangement, it has large concentrate storehouse suitable for many raw materials, reasonable equipment configuration and ore fines grinding system is added to improve the quality of product pellet. The product storage adopts large steel structure silo.

    

1.2MTPA Pelletizing Project for Tianchi Mining Co., Ltd. Jilin

 

Scale: 1.20MTPA 
Travelling grate: 4.0X38m
Rotary kiln: Φ5.0×40m 
Annular cooler: 69m2
Startup date: November 2008 
Characteristics: It has simple and smooth process flow，reasonable equipment configuration and stable production and high availability.

    

504m2 Straight Grate Induration Machine of Shougang Jingtang Iron & Steel Co.

 

Scale: 504m2 straight grate machine
Date of operation: August, 2010 
Characteristics: A large straight grate induration machine production process is adopted and is characterized by good adaptability to the raw materials and high induration temperature, etc. The main production line is centralized with simple process and easy management.

    

 

No.	Consumer	Location	Production scale	Start-up time	Service mode	Remarks
1	Haiming Mining Co.	Inner Mongolia, China	1.20MTPA	Under construction	Design and technical service
2	Xinzhongtai Technology Co. in Panzhihua	Sichuan, China	1.20MTPA	Under construction	Engineering
3	Tonggang Mining Co.	Jilin, China	1.20MTPA	Under construction	Design and technical service	Magnetite oxide pellet
4	Weiyuan Steel Co.	Sichuan, China	2.00MTPA	Under construction	General Contracting (EPC)	Titanomagnetite oxide pellet
5	Yuanjiacun iron mine of Taigang	Shanxi, China	2.00MTPA	Under construction	EPC	70% hematite pellet
6	Tailian investment Co. in Panzhihua	Sichuan, China	2.40MTPA	Under construction	Engineering
7	Sichuan Desheng Iron and Steel Co.	Sichuan, China	1.00MTPA	Under construction	EPC
8	Longsheng Iron and steel Co.	Shandong, China	1.20MTPA	2012.03	Engineering	Magnetite oxide pellet
9	Chicheng Baolong Burden Co. of Xuangang	Hebei, China	0.80MTPA	2011.08	EPC
10	Anyang Iron and Steel Co.	Henan, China	1.20MTPA	2011.02	Engineering
11	Dazhong Mining Co.	Inner Mongolia, China	1.20MTPA	2011.01	Design and technical service
12	Chengde Chuangyuan Mining Co.	Hebei, China	1.20MTPA	2011.01	Design and technical service
13	Xuanhua Iron and Steel Co.	Hebei, China	1.20MTPA	2010.09	EPC
14	Shougang Jingtang Iron and Steel Co.	Hebei, China	4.00MTPA	2010.08	Engineering	Straight grate technology
15	Qianjin Steel Co.	Hebei, China	0.80MTPA	2010.07	Engineering
16	Qinglong Burden Co.of Tanggang	Hebei, China	2.00MTPA	2010.07	Design, supply of equipment and technology service	Silver Medal of National Quality Projects, First Prize of the National Excellent Project Design in the Metallurgical Industry.
17	Shouqin Longhui Mining Co.	Hebei, China	2.00MTPA	2009.06	EPC	1st Prize of National Excellent Project General Contract in Metallurgical Industry.
18	Pangang Miyi Baima pelletizing project (Phase 2 project)	Sichuan, China	1.20MTPA	2009.06	Engineering
19	Xuanhua Iron and Steel Co. (Phase 1 project)	Hebei, China	1.00MTPA	2009.03	EPC	Production increasing and Renovation
20	Tianchi Mining Co.	Jilin, China	1.20MTPA	2008.11	Design and technical service	3rd Prize of National Excellent Project Design in Metallurgical Industry.
21	Kunming Iron and Steel Co.	Yunnan, China	1.20MTPA	2008.06	EPC	3rd Prize of National Excellent Project Design in Metallurgical Industry.
22	AISCO Co.	India	1.20MTPA	2008.05	Design + Supply of equipment	Fully hematite
23	BMM Co.	India	1.20MTPA	2008.04	Design + Supply of equipment	Fully hematite
24	Chengde Xintong Shoucheng Mining Co., Ltd	Hebei, China	2.00MTPA	2006.02	Engineering	1st Prize of Ministerial Excellent Project Design in Metallurgical Industry with a actual production capacity of 2.60MTPA.
25	Xinyu Iron and Steel Co., Ltd.	Jiangxi, China	1.20MTPA	2005.11	EPC	17% limonite
26	Liuzhou Iron and Steel Co. (Phase 2 project)	Guangxi, China	2.40MTPA	2005.05	Grate-rotary kiln nonstandard equipment design
27	Ansteel Gongchanglin Mining Co. (Phase 2 project)	Liaoning China	2.40MTPA	2004.11	Grate-rotary kiln nonstandard equipment design
28	Laiwu Iron & Steel Co.	Shandong, China	0.60MTPA × 3	2004.05	Technical Services
29	Wugang Chengchao iron mine	Hubei China	1.20MTPA	2003.12	Revamping of grate technology
30	Ansteel Gongchanglin Mining Co. (Phase 1 project)	Liaoning China	2.40MTPA	2003.10	Grate-rotary kiln nonstandard equipment design
31	Shougang Mining Co. (Phase 2 project)	Hebei, China	2.00MTPA	2003.04	Engineering	Actual production capacity reaches
32	Shougang Mining Co. (Phase 1 project)	Hebei, China	1.20MTPA	2000.10	Engineering	The first production line in China, 1st Prize of Metallurgical Science and Technology, new record of Chinese enterprise

Zhang Quanshen        Cell phone: 13801284935      Fixed phone: 88298596

Li Xiang                       Cell phone: 13718797600      Fixed phone: 88298589