Design of Iron and Steel Alloy Furnace Smelting Workshop
As one of the basic production operations in iron and steel production enterprises, smelting is the most important operation and a key link in the entire manufacturing process. In the current process operation, the smelting workshop needs to be designed reasonably and carefully in order to improve the overall efficiency, overcome the problems of serious pollution, and make the best of resources.
1. Technical Design
A modern iron and steel alloy furnace smelting workshop should be composed of the main operating area, an auxiliary production area, a material supply area, and associated process systems. In the main operating area, there should be a hot blast system, gas treatment system, production operation area and smelting furnace; additional auxiliary production units such as ladle refining furnace and furnace tip shall be set up in the auxiliary production area; in the material supply area, there should be a receiving and storage area, a weighbridge and other material preparation equipment.
In terms of technical parameters, the main smelting furnace should be equipped with a gas cleaning system, a hot blast system, a furnace body and an automatic control system. The gas cleaning system can be designed with a three-stage cleaning system, which is composed of a dusty mechanism, an electric dust precipitator and a flue gas secondary circulation system. The hot-blast stove should be designed to provide air at high temperature, and should be equipped with a regenerative heat accumulator to ensure that the heat loss is minimal. The furnace body should be designed with an impedance burning chamber, so that the carbon monoxide content discharged can be reduced as much as possible. The automatic control system should also be designed with a control system for continuous and safe operation of the furnace body.
2. Environmental Protection Design
In the actual smelting process, the exhaust gas generated from the furnace body is abundant and complex. In order to reduce air pollution and other environmental pollution, it is necessary to design the corresponding dust removal system, desulfurization system, denitrification system and gas recycling system for the iron and steel alloy furnace smelting workshop, so as to effectively reduce the harm of pollutant emissions.
The design of dust removal system is mainly to reduce the amount of dust and other dust in the furnace stack. This system is usually composed of dust removal mechanism, dust collecting device, dust cleaning device and dust collecting mechanism. The dust removal mechanism is mostly to use dust collection plate technology, in order to reduce the dust concentration emitted by the furnace; the dust collecting device generally uses bag filters or electrostatic dust catchers to capture the dust; the dust cleaning device is usually designed with wet scrubbers to collect and clean dust. In addition, exhaust gas monitoring devices should also be set up to regularly monitor the flue gas emissions.
The design of desulfurization system is mainly to reduce the sulfur dioxide content in the furnace exhaust gas. This system is generally composed of desulfurization tower, material handling system, and recycling system. In the desulfurization tower, the exhaust gas from the furnace can be treated and desulfurized, and the sulfate content of the treated gas can be reduced and reused. The material handling system is mainly to transport and collect the desulfurization material; the recycling system is to collect the desulfurization material from the desulfurization tower and then transfer it to the specified production workshop.
The design of denitrification system is mainly to reduce the nitric oxide content in the furnace exhaust gas. This system is generally composed of a denitrification tower, a material handling system and a recycling system. In the denitrification tower, the exhaust gas from the furnace can be treated and denitrified, thus reducing the nitrogen oxides contained in the exhaust gas. The material handling system is mainly to transport and collect the denitrification material; the recycling system is to collect the denitrification material from the denitrification tower and then transfer it to the designated area.
The design of gas recycling system is mainly to collect and recycle the exhausted gas from the furnace, so as to reduce the emissions of pollutant gas into the atmosphere. The gas recycling system is composed of a gas collection device, a gas treatment system and a dust collector. The dust collection device is mainly used to remove dust contained in the exhaust gas. The dust collector is used to collect and treat dust. The gas collection device is used to collect exhaust gas from the furnace and transfer them to the gas treatment system. The gas treatment system is mainly used to remove dust and other pollutant gases, so as to make the exhausted gas qualified.
3. Safety Design
In order to ensure the safety of the entire process operation, the safety of the iron and steel alloy furnace smelting workshop should be considered in the design. The safety design should include safety facilities for workers, safety devices for equipment and safety management for the process flow.
The safety facilities for workers should be designed to ensure the safe operation of employees. A toxic gas alarm system should be set up, and the alarm should be activated when the flue gas concentration is high. For the equipment, safety devices should be installed to prevent abnormal operations from causing security risks. The safety management for the entire process flow should also be taken into consideration. For the entire process flow, safety images should be set up.
4.Conclusion
In conclusion, the design of the iron and steel alloy furnace smelting workshop needs to be done carefully and reasonably, in order to improve the overall production efficiency, minimize emissions, reduce resource waste and maximize returns. The smelting workshop should be designed with a main operating area, an auxiliary production area, a material supply area and relevant process systems. The technical parameters should be determined according to the type of the workshop. In addition, the corresponding safety facilities, safety devices, dust removal system, desulfurization and denitrification systems should also be set up to ensure the safe and efficient operation of the workshop.
