Design of Copper Fire Refining Workshop
Thermal processing is an important part of the production process of copper products. The melting, refining and casting of copper products require the participation of high temperature, and the additional requirement of oxygen content makes the refining and casting process become more complicated. Copper fire refining workshop is the key technical process for further purifying the molten copper material, which is of great significance in the production of non-ferrous metals.
Copper fire refining workshop should adopt reasonable layout form, rational process flow, safe and convenient operation, standardized production, reliable quality and improved product quality and reduce energy consumption. Adopt airtight process and reduce air pollution. reasonable temperature distribution, reasonable circulation of liquid copper, reasonable temperature cycle and reasonable composition of melt composition.
The design of copper fire refining workshop should consider the factors such as energy conservation, reasonable layout and cost reduction in the design process. For fire refining workshop, reasonable design can not only reduce energy consumption and shorten smelting time, ensure the material can be safely discharged, and fully consider the physical and chemical properties of copper melt and purification conditions.
A copper fire refining workshop includes a copper fire refining furnace, an air collection hood, a dedusting system, a cooling system, a slag discharge system, a gas emission system, a controlling system and an automatic gas empty drum. The copper fire refining furnace is the most important equipment in the copper fire refining workshop, which is the main smelting equipment. It is a horizontal checkerboard hearth furnace with a furnace body divided into two parts. The upper part is the smelting chamber and the lower part is the fuel layer. The height of the smelting chamber is 5m and the diameter of the upper part is 1.8m. The upper part of the copper fire refining furnace is equipped with an inverted cone for steelmaking and slag discharge, and the lower part is equipped with an inverted cone ash discharging device.
The dust collection cover of the copper fire refining workshop is an airtight air collection hood, which is divided into two types: bottom air inlet and top air inlet according to different air inlet forms. Is a high-efficiency dust-removing device specifically used in smelting process. It adopts mature air inlet device, dust collector and start-stop device to control the on and off of the wind, and ensure the service life of the dust collection device.
The fumes bag filter of the copper fire refining workshop uses the special polytetrafluoroethylene material as the filter material of the fumes bag filter, which has high temperature resistance and good wear resistance, and can meet the purification requirements of the smelting process. The purification effect of the wind can reach more than 99%, the dust emission concentration is within the national dust emission standard, and the service life of the filter bag can reach 8000h.
The cooling system of copper fire refining workshop is a closed cooling water circulation system, which can reduce the copper smelting temperature by circulating cooling water and ensure the cooling process. The cooling water is injected into the furnace wall to rapidly reduce the temperature of the furnace wall and smelting material.
The slag discharge system of the copper fire refining workshop includes a ladle slag well, a bridge crane and a slag cradle. The ladle slag well is an important part of the slag discharge system. It is an airtight slag well structure, which can quickly and safely discharge the molten slag generated during smelting.
The gas emission system of the copper fire refining workshop is an automatic gas extraction drum. It is made of high temperature resistant ceramic material. The extracted gas is discharged from the discharging valve of the upper part to the atmosphere. It has good airtightness, stable operation and reliable function.
The control system of the copper fire refining workshop is mainly composed of a series of intelligent instruments and controllers, which can realize the automatic control of the smelting process and the automatic control of product quality in the workshop and provide reliable guarantee for safe production.
The automatic gas empty drum of the copper fire refining workshop mainly includes a high pressure gas extraction device, which can quickly injec a large amount of air into the workshop and extract the combustible gas to ensure the safety of production.
In short, the design of copper fire refining workshop not only requires a reasonable layout and process flow, but also requires a reasonable combination of devices and materials. For example, the adoption of closed cooling water circulation system and dust removal system to ensure normal production safety, and the adoption of automatic gas empty drum for gas emission and extraction. In addition, reasonable furnace material and temperature control system should be adopted to ensure the temperature uniformity and reduce energy consumption. All this is the core design of copper fire refining workshop.
