1.Scope of Application Cylinder mixer is one of the main equipment of sintering process line. Its function is to wet and mix the prepared sintering mixture, so that the moisture, materials and ingredients in the mixture are mixed evenly, and finally the particulate materials are formed into particles that meet the process requirements. 2.Model and Specification It can be divided into primary mixer and secondary mixer according to different functions. The primary mixer is mainly used to mix and wet the materials; The main function of the secondary mixer is to granulate the materials and finally ensure that the materials meet the requirements of uniform composition, moderate moisture and good air permeability. Model: SH-3 × 9I~SH-5.5 × 27II Inner diameter of cylinder (mm): 3000mm~5500mm 3.Product Introduction Cylinder mixer produced by our company has complete models and specifications. After years of design, manufacturing, installation and operation practice, we continue to carry out technical innovation and upgrading of this product, and the product technology has reached the advanced level. The cylinder mixer produced by our company has the advantages of simple structure, reliable performance, high output, easy operation, convenient maintenance and safe use, and has been widely used in sintering operation. Our company has comprehensive independent design and development capacity, strong production and manufacturing capacity of large equipment and rich equipment installation and operation experience, and can provide professional technical support. 4.Experiences Tangshan Donghua Steel, Rizhao Steel Group and other. (49 Sets)

Northen Heavy Industries Group(NHI)

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1.Scope of Application Disc pelletizer is the equipment for producing green balls in the pelletizing production process. When the disc rotates around the central axis, the pelletized materials roll along the bottom of the disc, and the fine materials are continuously adsorbed on the wet surface of the master ball, so that the master ball continues to grow to the specified size. Its working characteristics: the material moves regularly, the larger pellets and the smaller pellets move along different tracks respectively, and the green pellets with qualified size are discharged according to the size classification. 2.Model and Specification According to different structures of the equipment, it can be divided into two types of disc pelletizers: external gear meshing type and slewing bearing type. Common specifications and models in the market are ? 6000 disc pelletizer, small specifications and models ? 3500, ? 4500, ? 5500, large specifications and models ? 7000, ? 7500, etc. The production lines with different output can be adjusted by increasing or decreasing the number of disc pelletizers. 3.Product Introduction Disc pelletizer designed and manufactured by NHI uses the electric rotary scraper to scrape the disc surface and move particles to pelletize, with strong adaptability; Inclination and rotation speed can be adjusted; The structural form is simple countercurrent type, which is easy to install and maintain; Strong production capacity, high efficiency, and large output. Our company can design and manufacture various specifications and models of disc pelletizer according to the needs of users. Name: 6m disc pelletizer~7.5m disc pelletizer Disc diameter mm: 6000mm~7500mm 4.Experiences Experience in China: Baoshan, Yunnan and Xintaixin, Fengzhen, Inner Mongolia.?6 Sets Including? Experience Overseas: Indian Xiaam Metal Power, Indian Xiaam Steel Power, etc ?14 Sets?

Northen Heavy Industries Group(NHI)

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1. Scope of Application Indurating machine process is a mature pellet production process developed from the inspiration of indurating machine process. The whole process (drying, preheating, roasting, cooling) is completed on a single equipment. It has the characteristics of simple process, compact layout, light equipment weight, etc., which creates conditions for the factory to reduce the floor area, reduce the engineering quantity, realize the recycling of baking gas, and reduce heat and power consumption. 2.Model and Specification Indurating machine is particularly suitable for expanding production scale and realizing large-scale requirements. Specification and model/?: 346.5 ~552 Pallet specification (L × W)/m × m?1.5×3.5~1.5×4 3.Product Introduction Shape of Indurating machine is similar to straight-line sintering machine, but the whole working face is covered by the furnace cover, including the drive system, distribution unit, sealing unit, unloading unit, framework, bellows, pallets, etc. Along the length direction, it is divided into six process sections: blast drying, exhaust drying, preheating, roasting, soaking, and cooling. Each process section is connected to form an organic gas circulation system through pipes, fans, butterfly valves, etc. The temperature is adjustable through fuel consumption or butterfly valve opening. 4.Experiences Iron Khorasan 2.75 million Ton Oxidation Pellet Project, etc

Northen Heavy Industries Group(NHI)

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1.Scope of Application Pellet annular cooler is one of the main equipment in the process of grate - rotary kiln - annular cooler. It is used to cool the pellets discharged from the rotary kiln at about 1200 ?, and recover the waste heat to finally make the pellets reach the temperature suitable for transportation. 2.Model and Specification Effective cooling area/?: 35~248 Trolley width/mm: 1320~3750 3.Product Introduction Pellets discharged from the rotary kiln at about 1200 ? are evenly distributed on the pallet car through fixed screens and feed hoppers, and the blast unit installed at the lower part of the frame is used for blast cooling; The sealing cover unit on the upper part of the rack is used for waste heat recovery; The sprocket of the driving unit applies torque to the chain roller on the pallet car frame to make the frame rotate at a constant speed; When arriving at the ore unloading area, the pellet will be cooled to the required temperature. At this time, the pallet car will turn over, discharge and reset with the help of the curved track, and the cooling operation will be completed. 4.Experiences in recent years Experience in China: Zhangjiagang and MCC North Project etc. (6 Sets) Experience Overseas?India's Xam, India's Mahavir Ferro project (6 Sets)

Northen Heavy Industries Group(NHI)

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1.Scope of Application Sintering annular cooler is one of the main equipment in the metallurgical sintering process. It is used to cool the hot sinter discharged from the sintering machine and recover the waste heat, so as to finally make the ore reach the temperature suitable for transportation. 2.Model and Specification Effective cooling area/?: 235~650 Pallet car width/m: 3.0~3.7 3.Product Introduction The new generation of water-sealed blast annular cooler (520 ? multifunctional high-efficiency sintering annular cooler) produced by NHI has been officially put into use in Phase-II sintering project of Lianfeng Iron and Steel Co., Ltd. in May 2015. Until now its structural stability, sealing effect, waste heat recovery efficiency and cooling efficiency have greatly exceeded old blast annular cooler. In 2020, NHI independently developed a new type of high-quality and efficient sintering annular cooler. Through technical innovation of pallet car structure, sealing unit, cover assembly, transmission unit, etc., the structural performance of the sintering annular cooler has made a qualitative leap. It has the characteristics of simple structure, reliable performance, easy operation, convenient maintenance, safe use, low air leakage rate, good working environment, and low fan energy consumption. Waste gas from sintering annular cooler can be used for waste heat power generation or hot air sintering to achieve zero emission. 4.Experiences in recent years Xingcheng Special Steel, Angang Group, Hebei Huaxin Project, etc (13 sets) 5.Technical characteristics (1) Optimized pallet car structure Pallet car assembly adopts the upper and lower split assembly structure, which is convenient for on-site installation and disassembly and maintenance. (2) Optimized mechanical sealing unit A new floating mechanical seal unit has been developed, which can realize external maintenance and solve the problems of traditional mechanical seal maintenance and safety of maintenance personnel. The air leakage rate is less than 10%. This technology has been applied to Tangshan Ganglu and Jinan Iron and Steel Annular cooler Project. (3) Improved new joint sealing unit A new combined sealing unit has overcome the shortcomings of high air leakage rate of mechanical seal structure and high pressure of liquid seal structure water tank to remove silt. The sealing effect is also more guaranteed. The air leakage rate is less than 5%. It has been applied to the annular cooler project of Anyang Iron and Steel Group Xinyang Iron and Steel Co., Ltd. (4) Optimized cover assembly structure A new thermal insulation cover structure makes the waste heat recovery airflow smoother and improves the waste heat recovery rate. (5) Optimized structure of reset roll Structure of the reset roll is optimized to make the roll surface fully contact with the lower surface of pallet, and the bearing force of the shaft is more reasonable. (6) Pin-tooth drive with compensation function Transmission unit equipped with compensation function can better contact the sprocket and chain, and has been applied to the project of Jinan Iron and Steel Co., Ltd.

Northen Heavy Industries Group(NHI)

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1.Scope of Application Straight-line sintering machine is applicable to the sintering operation in the ferrous metallurgy sintering process of iron and steel enterprises. It is the main equipment in the process of exhaust sintering. During the sintering operation, iron ore powder with different components and sizes, solvent, fuel, etc. are sintered into blocks, and harmful impurities such as sulfur, phosphorus, arsenic, etc. contained in the ore powder are partially eliminated. 2.Model and Specification Specification: SD-180~SD-660 Capacity(t/h): 490~1550 3.Product Introduction Our company is a professional manufacturer that designs and manufactures sintering machines in China. It is the drafting unit of the industrial standard JB/T2397-2010 Stainght-line Sintering Machine, and has rich experience in design, manufacturing, and service. Based on digestion and absorption of introduced technologies, NHI has continuously cultivated the independent research and development capacity of enterprises, accumulated a large number of patented technologies, and has built a batch of sintering machine series products with advanced technology, professional manufacturing, reliable performance and other characteristics. The pallet car width design covers 3m to 5.5m series, including Shougang, Baosteel, Wuhan Iron and Steel, Anshan Iron and Steel, Shagang, Jianlong, Baotou Steel, Baosteel, Nippon Steel Yonggang and other iron and steel enterprises provide sintering equipment, and the products are exported to South Korea, India, Brazil and other countries.

Northen Heavy Industries Group(NHI)

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1.Scope of Application Traveling grate is a thermal equipment that carries feed balls forward through the annular grate bed under the high temperature environment, and feed balls absorb the hot air heat of flue gas furnace to realize the dehydration, drying, preheating, oxidation, and consolidation of green ball. 2.Model and Specification According to the operating temperature, material ratio and overall process of the equipment, traveling grate can be divided into three types: oxidized pellet grate, metallized pellet grate and low-temperature reduction grate. Model: YQL2.0×30~YQL4.5×60 Annual output (tons): 250,000~2,400,000 3.Product Introduction NHI began to rely on Experience in China experts to develop travelling grate in 1996. In 1997, we successfully designed and manufactured 200,000 tons/year oxidized pellet grates. After years of continuous research and development and improved design, we have been able to design and produce 100,000 to 2,400,000 tons/year grates of various specifications and models. In more than 20 years of design, production, installation, production guidance and other practices, our company has mastered heat-resistant material technology, scraper plate technology, kiln tail sealing technology, transmission unit technology, grate bed expansion technology, complete machine structure technology, installation technology, production and operation technology and fault treatment technology, and can ensure the stable operation of the equipment. 4.Experiences Experience in China: Beijing Shenwu Group, Jiangsu Delong and other (51 Sets) Experience Overseas: India BMM, Vietnam and other (17 Sets)

Northen Heavy Industries Group(NHI)

www.NHI.com.cn