A ferroalloy company produces high-carbon ferrochromium. Each submerged arc furnace is equipped with a negative pressure bag dust removal system to collect and treat the flue gas and dust in the submerged arc furnace.

In order to make the large and medium-sized reduction electric furnaces of ferroalloy run better, it is required that the burden has proper fragmentation and ensures good air permeability. At present, the supply of high-quality lump burden which can be directly fed into the furnace is becoming increasingly tight. In order to adapt to this situation, some manufacturers at home and abroad have adopted various lump technologies to effectively utilize fine ore and concentrate and obtained better smelting indexes.

Nibrasco briquetting plant was completed and put into production in August 1978. This article will describe the process flow of each section of the factory.

The large briquette machine consists of transmission motor, synchronous gear reducer, preloading device, main machine device,hydraulic system, belt conveyor and electronic control. Among them, the synchronous structure adopted by the transmission system makes the main engine transmission realize good design,manufacture, use and maintenance. The hydraulic device adopts the structure of small cylinder body and large tension force, thus realizing the purpose of reducing the quality of the whole machine and reducing the consumption of steel. The ball pressing roller adopts a combined structure, which realizes that vulnerable spare parts can be replaced on site, thus reducing the loss caused by the shutdown of the production line.