Jiangyin Chengku Machinery Manufacturing Co., Ltd.

NEWS

Steel and iron smelting machinery

Mechanical equipment that uses high-temperature metallurgical methods (also known as pyrometallurgy) to smelt ore or low-purity metals into certain purity metals, or to combine several metals and non-metals to smelt alloys of certain composition. Steel and iron are generally smelted using high-temperature metallurgical methods. Steel smelting machinery includes blast furnaces and their supporting machinery for ironmaking, open hearth and converter furnaces for steelmaking, electric arc furnaces, external refining equipment, ingot casting equipment, and metallurgical vehicles. The blast furnace and its supporting machinery are called blast furnaces, which continuously refine iron ore or artificial rich ore into pig iron. Its appearance resembles a rigid cylinder, composed of refractory materials and metal shells. Figure 1 shows the layout of the blast furnace and its supporting machinery. The raw materials are weighed from the ore storage tank and transported to the top of the furnace by the blast furnace mechanical hopper or belt conveyor, and evenly placed in batches into the furnace. The air preheated by the hot blast furnace is blown into the furnace through the tuyere, causing the fuel to burn and heat the furnace material, decompose and reduce it, thereby obtaining pig iron. The molten iron is discharged from the tapping hole, enters the molten iron tank through the iron ditch and flow nozzle, and is transported to the steel plant or cast into iron blocks by a cast iron machine. The gas exported from the furnace top can be used as fuel after being treated by the gas purification system. To strengthen smelting, in addition to using external combustion hot air furnaces to increase air temperature, increase air volume, or using comprehensive blowing (including fuel injection, oxygen rich blowing, and dehumidification blowing), increasing furnace top pressure can also increase production and reduce coke consumption. The newly built blast furnaces widely use bell valve sealed or bell free high-pressure furnace tops. After adopting the bell free high-pressure furnace top, the height and weight of the furnace top can be correspondingly reduced by about half. The blast furnace has a capacity of about 5500m3 (with a daily output of over 10000 tons of pig iron). The large-scale and continuous production of blast furnaces requires a high degree of mechanization and automation, and it is necessary to use supporting blast furnace machinery such as opening and closing tapping machines and tuyere changing machines.

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2023

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04

What are the common faults of sintering machines

Due to the long-term transmission of large torque during operation, the expansion sleeve of the sintering machine is prone to fatigue deformation of the metal, resulting in fatigue wear between the expansion sleeve and the fastener. At the same time, due to the large size of the sintering machine, it is difficult to repair. In response to such problems, polymer materials can be applied for on-site repair, and there are now many applications of polymer composite materials. Its characteristic is that there is no need to dismantle the equipment, as long as the working surface is exposed, and the repair is fast, saving valuable production time for the enterprise. The traditional outsourcing brush plating and spraying methods for repairing dimensions are difficult to ensure, and the repair cost is relatively high. The polymer composite material method is more practical, and there is generally a component corresponding repair and mold repair process for the matching relationship of parts, equipment operation status, and wear. The repair mainly consists of the following steps: first, surface treatment should be carried out on the worn parts of the journal and the inner hole of the gear to ensure cleanliness, dryness, roughness, and exposure of the original metal color. The surface of the shaft diameter should be coated with polymer metal repair material, scraped flat with a ruler, and cured; Surface treatment of gear inner holes and application of polymer metal repair materials to smooth out wear marks and solidify; After the material is heated and solidified, the surface of the material is polished flat. The inner ring of the expansion sleeve is used as a mold to fit the size of the repaired surface of the shaft diameter, and the foot edge is polished. Then, the repaired size is measured; Afterwards, apply polymer metal repair materials to the inner and outer rings of the expansion sleeve for general assembly.

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2023

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04

Warmly celebrate the launch of the official website of Jiangyin Chengku Machinery Manufacturing Co., Ltd!

The company was established in June 2008 and is a limited liability company formed by Jiangyin Dingcheng Machinery Manufacturing Co., Ltd. through asset reorganization. It is a qualified supplier of Fafu International Trade (Shanghai) Co., Ltd., Beijing Antai Technology, China Heavy Industry Institute, Zhejiang Jiuli and other units. It is located in Zhouzhuang, a strong industrial town in Jiangyin City, Jiangsu Province, a land of fish and rice in Jiangnan. The company covers an area of 21000 square meters, with a construction area of over 19000 square meters, a production workshop of 6000 square meters, a machining workshop of 2000 square meters, an assembly site of 2000 square meters, an assembly platform of 300 square meters, and an existing workforce of 50 people. The annual production capacity of metallurgical machinery products is 3000 tons. Our company mainly engages in the processing and manufacturing of metallurgical machinery and equipment, non-standard hardware machinery and equipment, and large structural components. The company has φ 160 CNC boring and milling machine, X2025 * 110A gantry boring and milling machine, 2 * 6 meter gantry planing and milling machine, 4 meter digital display gantry milling machine, machining center, 4 * 11 CNC cutting machine, and multiple Japanese Panasonic gas shielded welding machines and other processing equipment. And has mature equipment production capabilities in material procurement, riveting, stress relief, mechanical processing, assembly, and coating manufacturing. In the past few years, the company has participated in the manufacturing of heating furnace traveling heating section equipment at Handan Iron and Steel Co., Ltd., undertaken the production of supporting equipment from units such as Antai Technology, MCC Jingcheng, Zhejiang Jiuli Welding Pipe Project Equipment, and Beijing Antai Technology, and has received high praise from users. The company adheres to the principle of quality as the life of the enterprise, regards the needs of users as its own responsibility, and takes honesty and trustworthiness as its foundation. We are willing to work together with domestic and foreign customers and friends from all walks of life to build the future!

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Factory address

No. 15 Huahong Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China

121 Huanxi Road, Huaxi Village, Huashi Town, Jiangyin City, Jiangsu Province, China

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