Beijing Shougang International Engineering Technology Co., Ltd (BSIET) has the ability and experience to undertake the design and construction of large, medium and small scale iron making plant for iron and steel enterprise both at home and abroad and provide clients with customized total solution and services such as design, general contract and supply of integrated equipment.
BSIET has established long term cooperation with many universities and science and research institutes in the Capital and formed a research system with integration of “production, academia and research” and with Shougang as the experimental base for technology development. For iron making only, BSIET has 75 science and technology and design prizes from the State, Beijing City and metallurgical industry and 52 national patents. BSIET compiled the national standard-"Design code for BFG dry bag dedusting", participated in compilation of the national standards-"Design code for BF iron making process" and "Design code for BF injection of pulverized coal", developed the key project in national “11th Five Year” Scientific and Technological Supporting Plan.
BSIET has abundant engineering experience and performance reference for BF design and general contract for construction which ranges from small scale BF to 5500m3 extra-large BF. It has a complete, systematic and precision design system especially for extra large scale BF, forming a unique technical advantage. It has designed the China first 5500m3 extra-large BF, the operational techno-economic indices of which are in the leading position in China and in the world as well.  
BSIET adheres to the design principle of “innovation, precise design and perfection”, follows the service concept of “people oriented, energy saving, environment friendly and customer satisfied” and goes all out to create most competitive iron making plant for clients.

Blast furnaces designed and constructed by way of general contract since 1991 by the company.

In the long term design practice and technical research, BSIET created a series of unique technologies, especially the concentrate burden technology and “non-relay station” direct charging technology, bell-less top with parallel hopper and precise distribution technology, BF high efficiency and long life technology, casthouse equipment and process technology, high blast temperature comprehensive technology, cyclone dedusting technology, BF pulverized coal injection technology, dry dedusting technology for BF gas, etc.. The comprehensive applications of these technologies ensure the long life, high efficient, low consumption and environment friendly operation of BF system.

(1) Technical features

    The charging, transferring, storage, screening, weighing of charged raw material and fuel for BF are arranged in one same building, process arrangement is simple, compact, neat, good looking and easy for production management.
    Charging, ore return and coke return systems are integrated for BF, process flow is simple and cost saving.
    Non-relay station main belt conveyer direct charging process has a strong catching up capacity, reduce transfer of material and charged fines, increase utilization factor of raw material and fuel and improve BF operation;
    Adopting technology of sinter and coke sized charging and technology of ore nut and coke nut recovery;
    Hydraulic driving is used for the main belt conveyor.

(2) Patent technology

Double mass resonance screen, oscillator for vibrating screen, etc.

In 1979, BSIET successfully developed the BF bell-less top with parallel hoper technology and applied it to Shougang 2# 1327m3 BF in December of the same year, which is the first in China. Up to now fourth generation of this technology has been developed and successfully applied to Shougang Jingtang 5500m3 extra-large BF, reaching the advanced technical level of same technology outside China.

(1) Technical features
    High efficient water cooling technology for driving gear box of distribution chute;
    Development of wear resistant lining, greatly increase the life of top equipment;
    The locking device of new distribution chute;
    Precise distribution technology;
    Multi-optimized-charging systems;
    Sized sinter and coke charging, center coke charging technology and operation of multi-ring distribution and fixed point distribution;
    Optimization of burden distribution control technology for extra-large BF.

(2) Patent technology

Sensing device for BF bell-less distribution, fixing device for BF bell-less distribution chute lining, air sealing device for BF bell-less top distribution driving gear box, sealing device for water cooled driving gear box of BF bell-less top distribution, exchanging device of distribution chute for BF bell-less top, and locking device of distribution chute for BF bell-less top etc.

(1) Technical features

-- BF belly, bosh and lower part of shaft adopt copper stave structure, stave sectional transition technology;
— Serial soft water closed circulation sectionalized cooling technology;
-- Brick-stave integrated thin wall lining structure fully with cooling stave, stave hot cast and hot embedment compound technology;
-- Precise design is realized by analysis and calculation of stave temperature field and stress;
    Optimize BF profile design, adopt rational short shaft;
    Stave long life technology;
    Long life technology for BF hearth and bottom.

(2) Result of application

(3) Patent technology

High efficiency short BF, monolithic cast steel stave, lining structure of BF hearth and bottom, high efficiency long life steel stave, fixing and supporting devices for BF stave, high efficiency copper stave, BF blast distribution protection device, BF sectional controlled cooling device etc..

BSIET, through long time accumulation of technology, cold and hot tests, deepening application of computer simulation and repeated research and verification on key issues, realized 1300℃ super high blast temperature and formed a set of complete super high blast temperature design system on 5500m3 extra-large BF hot blast stove with single BFG, providing client with great economic benefits, social benefits and environmental benefits.

(1) Technical features
 
-- Low temperature preheating technology to preheat gas and combustion air by residual heat of fume;
-- High temperature preheating technology for combustion air;
-- Combustion chamber and circular ceramic burner;
-- Structure of regeneration chamber and checker brick;
-- Structure of refractory lining;
-- Rational layout of pipeline system;
-- Design the low stress and non-over-heat pipeline system;
-- Rational provision of bellow compensator for hot blast pipeline;
-- Optimization of lining structure of hot blast pipeline;
    High efficiency cyclone dispersing burner for dome combustion hot blast stove
    High efficient pre-heating technology for gas and combustion air;
    Rational process arrangement for hot blast stove;
    Optimized design of hot blast stove structure;
    Design of pipeline system;
    Hot blast stove automatic combustion technology.

(2) Patent technology

Large power short flame burner, one kind of rectangular arrangement of dome combustion hot blast stove, top combustion hot blast stove high efficiency cyclone disperse burner, one kind of high temperature long life two stage double preheating device, etc.。

Dry dedusting technology for BF gas, developed by BSIET itself, owns 22 patents. The dust content in clean gas is below 5mg/m3 with a better quality and higher calorific value of gas. The theoretic combustion temperature of hot blast stove is improved efficiently. In comparison with wet dedusting, the TRT power generating capacity is increased by 35~40%.

It has the advantages of water saving, electricity saving, environmental 

protection and reducing the project occupation and construction 

investment.

(1) Technical features

•     Whole process simulation and analysis design;
      High-efficiency temperature adjustment, applicable to BF top 
• temperature 50-350℃, the instantaneous top temperature 500℃ (less than 
• 30 minutes) working condition;
      High-efficiency & low-consumption dust conveying;
      Large size, high efficiency, integrated dust catcher, the longest service life of the filtering material is 30 months;
      Matured automatic operation system.

(2) Application

•     After the successful application in Chengdu iron and steel plant in 1996, the technology has been rapidly applied in the Chinese iron and steel enterprises;
      In 2004, the technology was successfully applied on Shouqin 1200m3 BF, being the first in the world for fully dry gas dedusting on large BF;
      The technology has been successfully applied in shougang Jingtang 5500m3 ultra large BF and made great contribution to energy saving and environment protection in world iron and steel industry.
      Since 2003, we have completed turkey projects for BF gas dry dedusting of ten 1000~5500m3 BFs.

(3) Patent technology

    Heating device for BF gas, pneumatic conveying device with BF gas residual pressure, low pressure impulse bag filter, stable air source device for purified gas pressurized impulse back blowing, cooling device for BF gas dry dedusting, dust conveying device of tank car for BF gas dry dedusting, gravity deduster for BF gas, low pressure impulse bag filter for BF gas, dust conveying device of tank car for gravity deduster, hot pipe heating device for BF gas dry dedusting, steam heating device for BF gas dry dedusting, dust content on-line monitoring device for large BF gas dry dedusting, BF gas dry dedusting system (India), bag filter dedusting system for blast furnace gas, pneumatic dust conveying device, bleeding device for BF gas dry dedusting, gravity conveying device of tank car for BF gas collected dust, gas pipeline corrosion proof device for BF gas dry dedusting, dedicated stock level switch for BF dry dedusting, hot pipe heating device for BF gas dry dedusting, on-line monitoring device for integrated bag filter of gas dry dedusting for large BF, etc..

The fully dry TRT technology is very effective to recover the BF residual pressure, reduce the noise level in the BF area, relieve the electricity load around the plant, and 

make a positive contribution for the development of society-friendly 

steel plant of cycling economy.

(1) Application

In 2004, successful application on Shouqin 1# 1200m3 BF;
In 2007, successful application on Shougang Qiangang 2# 2650m3 BF;
In 2009, successful application on Shougang Jingtang 1# 5500m3 BF.

(2) Proprietary technology 

Fully dry (or dry-wet) TRT unit serial/parallel process flow optimization, fully dry TRT unit locating in open air, optimization technology for compact process arrangement of large equipment and accessories, etc.

Shougang is the inventor of Chinese PCI technology. In 1963, Shougang started systematic research and test of PCI technology and successfully applied this technology on BF in 1964. In 1966, this technology was promoted on the BF of whole company and the annual PCI amount was 159kg/t, presenting a world record at that time. At present, the designed coal injection rate can reach 250kg/t. BSIET makes a break-through in terms of 

compact arrangement, long distance and percentage of 

home-made of coal injecting system and has many technologies 

updating the records of Chinese large BF and has won many 

technical rewards of national level. The technological development 

and design research of compact long-distance PCI technology for 

large-scale BF won 2nd Prize of Metallurgical Science and 

Technology.

(1) Technical features

•     Coal pulverization process by medium speed mill;
      Primary pulverized coal collection technology by high-efficiency 
• low-pressure impulse collector;
      Parallel-vessel long-distance direct injection technology;
      High-accuracy pulverized coal distributor, PCI branch with even resistance, realizing continuous and even injection;
      Fully automatic injection.

(2) Patent technology 

Mixer for fluidized coal injection, tube type belt conveyor coal charging system, etc.

BSIET has obtained rich technical deposit and its design concept and control system are all in the leading level of China. The BF automatic control technology is heading towards the direction of “network-based, integrated, dispersed, and energy-efficiency”. Main control software and mathematical mode including:
—BF expert system software
—BF material distribution model
—BF hearth erosion model
—BF gas analysis system
—BF gas bag filter dry dedusting system
—Hot blast stove automatic combustion fuzzy reasoning software
—Hot blast stove automatic combustion control software

Shougang Jiangtang Steel & Iron Works, with a yearly production capacity of 9.70Mt/a, two 5500m3 blast furnaces ware built. It is the first in China to build super large BF above 5000m3. Based on the study and analysis of super large BF above 5000m3 in the world, BSIET performed all round independent innovation. A series of innovative advanced technologies and process equipment were designed and developed independently such as bell-less top, top combustion hot blast stove, gas fully dry bag dedusting, BF high efficiency long campaign comprehensive technologies and screw-slag granulation process.

During the design and construction of Shougang Jingtang Steel & Iron Works,, BSIET performed the independent innovation and made the first 5500m3 BF in China a super large BF with international advanced level in the 21st century by integrated application of current world-class advanced technology equipment following the requirement of  circular economy, with the design concept of “high efficiency, low consumption, high quality, long life, clean” and the purpose of “modern technology, large scale equipment, compact procedure, intensive production, resource and energy circulation and optimization of economy”.

Shougang Jingtang 1# 5500m3 BF is awarded 1st Prize of Excellent Project Design in Metallurgical Industry, and Shougang Jingtang 1# BF BFG dry dedusting and TRT is awarded 3rd Prize of General Contracting in Metallurgical Industry.

Main Techno-economical Indexes of Shougang Jingtang BF (5500m3) in March 2010

Awarded Silver Prize of National Excellent Design, 1st Prize of Ministerial Excellent Project Design in Metallurgical Industry, 1st Prize of Beijing science and technology progress, 2nd Prize of Metallurgical Science and Technology Progress

 Main Techno-economical Indexes of Shougang Qiangang BF 1 & 2 (2650m3) in 2009

Main Techno-economical Indexes of Shougang Qiangang BF 3 (4000m3) in July 2010

Awarded Bronze Prize of National Excellent Design, 1st Prize of Ministerial Excellent Project Design in Metallurgical Industry, 2nd Prize of Beijing science and technology progress, 2nd Prize of Metallurgical Science and Technology Progress, and honored as "Metallurgical Works of Art".

Main Techno-economical Indexes of Shouqin BF 2 (1780m3) in 2009

Awarded the 1st Prize of Ministerial Excellent Engineering Design in Metallurgical Industry and the 1st Prize of Beijing Excellent Design; the dry/wet TRT technology is awarded the 3rd Prize of Metallurgical Science and Technology and the 3rd Prize of Beijing Science and Technology Progress.

Main Techno-economical Indexes of Shougang BF 3 (2536m3) in 2009

Awarded the 2nd prize of ministerial excellent project design in metallurgical industry.

Main Techno-economical Indexes of TISCO BF 3 (1800m3) in 2009 

Main Techno-economical Indexes of Chonggang BF 4 (<1350m3) in 2009

Awarded the 1st Prize of Ministerial Excellent Project Design in Metallurgical Industry.

Main Techno-economical Indexes of Xianggang BF 4 (1800m3) in 2009

Zhang Qifu     Cell phone: 13811225187     Fixed phone: 88298510  

Kang Zhuo      Cell phone: 15801295469     Fixed phone: 88299644