NEW GENERATION "CARBOSIL-E:
Increased requirements for the quality of ferroalloys in the metal market are reflected in the requirements that apply to charge materials and, above all, to carbonaceous reducing agents.
A large group of carbon materials, both fossil and artificial, whose quality does not fully satisfy the requirements of technology and the economy of ferroalloy production, is used as reducing agents.
The most important factors affecting the choice of carbon reducing agent for the production of ferroalloys
On the basis of inexpensive coal grades, a new unique reducing agent was created, the best alternative substitute for charcoal in the metallurgy of silicon and other types of ferroalloys, called “KarboSil-E”, produced by patent-protected technology and the “EPOS-Engineering” equipment – the reversed gasification process.
The problem that existed with the former reducing agents: the high price of the reducing agent, the high energy consumption when melting with the reducing agent, the low resistance of the charge, the incomplete use of raw materials and transformer capacities, and high dust emissions.
The purpose of creating a new reducing agent: to improve the technical characteristics of the ore-thermal furnace (RKO-14), reduce the technological cost of production of ferroalloys and increase profitability.
Figure 1. A pilot plant for testing the production technology of KarboSil-E from coal
Main advantages of the KarboSil-E reducing agent:
Advantages of the KarboSil-E technology:
Advantages of KarboSil-E in metallurgy:
Directions for use of the KarboSil-E reducing agent:
Housing and communal services:
Coal of cheap grades is a low margin product
|The cost of TR brand coals||2700 rub / t|
|The cost of coal brand DR||1870 rub / t|
|Cost CarboSil-E||20 000-30 000 rub / t|
Decision: apply the technology of deep processing of raw materials
The KarboSil-E technological process and equipment for its implementation are distinguished by the absence of environmentally hazardous emissions. Pure combustible gas is generated along with the main product, KarboSil-E, and is a valuable fuel in the production of energy and is used in technology.
– Technology provides High porosity of the product (2 times higher than coke). Product has two kinds the structure pore – anisotropic and isotropic from open communicating pores, which provides instant heating of the pore walls, thereby achieving the effectiveness of the pore space in the temperature range of the reduction of metal oxides.
Such a pore structure provides maximum gas permeability and a large contact surface area of the reaction gases with the pore walls at high upward gas velocities in a ferroalloy furnace.
– In Technology is achieved controlled pyrogenetic effect with special simultaneous use of thermal and electrical effects on the product during processing
Application example and results:
After the transition to KarboSil-E, ceteris paribus:
Alloy production increased from 24-30 tons to 58-59 tons per day per kiln.