Drying machine

The dryer is mainly used for drying slag, clay, coal powder, leached slag and other materials in the building materials industry or metallurgical industry. The dryer adopts a new type of lifting plate device, which has multiple functions such as guiding, equalizing flow and lifting. It can make the material evenly distributed in the radial section of the dryer, and the material curtain becomes thin, even and complete, fully exposed to the hot air flow, so as to achieve the purpose of fully utilizing the heat energy. The high-efficiency dryer uses reasonable operating parameters, and the coal consumption and electricity consumption are reduced by more than 10-15% compared with the general dryer, and the hourly output is increased by more than 10-15%.

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Description

Product Features

Raw materials such as limestone, clay, and slag used in cement production often contain 10%-15% moisture. Directly entering the grinding or calcining process will cause equipment blockage and increased heat consumption. The dryer uses hot air to contact the material in countercurrent or cocurrent flow, and uses the lifting plate in the cylinder to repeatedly throw the material to form a uniform material curtain, quickly evaporate the water, and reduce the moisture content of the material to below 0.5%-1%. The particle size of the material after drying is uniform and the fluidity is enhanced, which reduces the phenomenon of over-grinding and reduces the energy consumption of grinding by 20%-30%. The dryer uses a hot air circulation system, a closed structure, and bag dust removal technology to stabilize the dust emission concentration within the standard range, which is energy-saving and environmentally friendly.

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Jiangsu Haijian Co., Ltd

Jiangsu Haijian Co., Ltd was established in 1970 and was restructured into a provincial privately-owned joint-stock company in 2003. The company currently employs over 300 people, with engineering and technical personnel accounting for 25% of the total workforce. It covers an area of 100,000㎡ and has a building area of 55,000㎡. We currently possess vertical lathes ranging from Φ2.5-10m in diameter; gear hobbing machines with Φ2-8m capacity; floor-type lathes with Φ5×16m and Φ7×20m capacities; overhead cranes ranging from 10-150t; plate rolling machines from 30-120; gas annealing furnaces measuring 6.5×6.5×18m; and automatic drying and spraying booths, with a total of 500 units/sets of various equipment.
Jiangsu Haijian Co., Ltd is a professional China Drying machine Manufacturers and Drying machine Company. We provide professional cement production equipment, industrial solid waste incineration equipment, and professional equipment for mining and metallurgical applications.We are a major manufacturing enterprise, a key backbone enterprise, and a primary export base for cement, power, environmental protection, and metallurgical and mining equipment in China. The company has the legal rights to independently manage the import and export of its products and is legally authorized to undertake general contracting for foreign projects.

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Industry knowledge

In the building materials and metallurgical industries, drying machines are key equipment for material pretreatment, responsible for drying raw materials such as slag, clay, pulverized coal, and leached residue. Jiangsu Haijian Co., Ltd. is a professional drying equipment manufacturer and company, providing specialized equipment for cement production, industrial solid waste incineration, and mining and metallurgical applications. The company holds independent import and export rights and general contracting rights for foreign projects. Through its innovative structural design and optimized thermal system, the drying machine achieves breakthroughs in both energy consumption and production efficiency, providing the industry with a more economical and environmentally friendly drying solution.

The dryer integrates multiple lifting devices, combining flow diversion, flow distribution, and lifting functions. Its unique curved structure and arrangement create a thin, evenly distributed curtain across the radial cross-section of the drum. This design ensures that material particles are fully exposed to the hot airflow, increasing the heat exchange area by over 40% compared to traditional dryers. Combined with an optimized drum speed (typically controlled at 3-8 rpm) and inclination angle (3-5°), the material residence time within the drum is precisely controlled, ensuring maximum water evaporation efficiency.

The hot air system utilizes a countercurrent heat exchange principle. High-temperature flue gas (600-800°C) is introduced at the feed end, moving in the opposite direction of the material. The innovative air duct design ensures more uniform hot air distribution, maintaining a stable velocity within the optimized range of 1.5-2.5 m/s. This ensures efficient heat transfer while preventing fine particles from being carried away by the airflow. A high-efficiency cyclone dust collector is installed at the tail end, keeping the dust content in the exhaust gas below 50 mg/m³, meeting environmental emission requirements.

Daily maintenance focuses on the following:
Weekly check the lift plate for wear and replace any deformed parts promptly.
Monthly clean the dust removal system and inspect the seals.
Quarterly calibrate temperature and pressure instruments.
Inspect the cylinder for straightness and roundness during the annual overhaul.