Hot-pressing molding production line for hot-pressed iron blocks

Abstract

The invention relates to a hot-pressing molding production line for hot-pressed iron blocks and belongs to the technical field of hot-pressing molding equipment for the hot-pressed iron blocks. According to the technical scheme, the hot-pressing molding production line comprises a feeding system, a rotary kiln, a material guiding and separating device, a burner (9), a hot-pressing molding machine (12) and a finished-product conveyor (14), the rotary kiln comprises a kiln body (7) and a kiln rotating device (8), an included angle is formed between the kiln body (7) and the horizontal plane, the kiln rotating device (8) is fixed on the kiln body (7), the feeding system is arranged at one end, higher than the horizontal plane, of the kiln body (7), the material guiding and separating device and the burner (9) are arranged at the other end of the kiln (7), and the hot-pressing molding machine (12) and the finished-product conveyor (14) are sequentially arranged in the rear of the material guiding and separating device. The hot-pressing molding production line has the advantages that raw materials are heated evenly, heat loss is low, heating temperature is low, energy sources are saved, impurities in the materials are removed, the purpose of further purification is achieved, quality of products is improved, and equipment maintenance rate is lowered.

Description

technical field [0001] The invention relates to a hot-pressed iron block hot-press forming production line, belonging to the technical field of hot-pressed iron block hot-press forming equipment in the metallurgical industry. Background technique [0002] In the metallurgical industry, steel scrap, pig iron block, sponge iron, and reduced iron are generally used as cold materials for steelmaking cooling. When scrap steel and iron block resources are in short supply, sinter, pellets, lump ore, and dust and mud briquettes can also be used. Among them, the pig iron block is mainly cast from scrap iron. [0003] Chinese Patent Application No. 201310556215.7 discloses a steel-making cooling cold material and its preparation method. This steel-making cooling material is in the form of a cylinder, a cuboid, a cube or a sphere, and the chemical composition mass percentage: C: ≤ 1.2%, Mn: ≤1.4%, S: ≤0.045%, P: ≤0.045%, Si: ≤0.7%, TFe: ≥92%, others are inevitable impurities, apparent...

AI Technical Summary

Problems solved by technology

S: ≤0.045% and P: ≤0.045% in raw materials, resulting in higher purchase prices and higher cost of finished products;

[0011] (2) The heating temperature of raw materials is 800-1100 oC, and the heating temperature is high, resulting in high energy consumption;

[0012] (3) Raw materials are preheated, kept warm, and heated in a high-temperature kiln. The heating time is long and the production efficiency is low.

Raw materials are easy to be heated unevenly, and the degree of surface oxidation is high, which directly affects the forming of steelmaking cooling cold material, and there are many product fragments, which reduces product quality

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