Microwave carbon process magnesium smelting furnace

Abstract

The invention relates to a microwave carbon process magnesium smelting furnace, and belongs to the technical field of magnesium smelting equipment. An upper sealing head of a furnace body of the magnesium smelting furnace is connected with the upper end of a steam passage through a connecting element; a lower sealing head of the furnace body is connected with the lower end of the steam passage through a connecting element; the furnace body is connected with an inner tube through a connecting element; the upper end of the inner tube is connected with the upper end of an outer tube through an arc-shaped plate; the lower end of the inner tube is connected with the upper end of an inner seal through a connecting pipe; the lower end of the inner seal is connected with the upper end of a discharging tube through a connecting pipe; the lower end of the outer tube is connected with the upper end of an outer seal through a connecting pipe; the lower end of the outer seal is connected with a flange A through a connecting pipe; the flange A is connected with a flange B through a connecting pipe; the flange B is connected with the upper end of a telescopic joint through a connecting pipe; the lower end of the telescopic joint is connected with a flange C through a connecting pipe; the flange C is connected with a flange D through a connecting pipe; the flange D is connected with the lower end section of the discharging tube through a connecting pipe; a bottom sealing head of the discharging tube is connected with a switch through a connecting pipe; the lower end section of the steam passage is connected with the lower end section of the inner tube through a supporter; the connecting element arranged between the furnace body and the inner tube is connected with the lower end of a vacuum cavity through a flange; the upper end of the vacuum cavity is connected with the sealing head through a flange; the vacuum cavity and a vacuum pipe are fixed; the inner tube, the outer tube and inner peep holes are fixed; the lower end section of the steam passage is arranged in a center hole of a slag falling device in a penetrating way; the lower end of the slag falling device is connected with the lower end of the inner tube through a reciprocating mechanism; and a microwave heater is arranged in each peep hole. The microwave carbon process magnesium smelting furnace is used for smelting magnesium, and belongs to novel microwave energy source carbon process magnesium smelting equipment.

Description

technical field [0001] The invention relates to a microwave carbon method magnesium smelting furnace, which relates to the technical field of metallurgical equipment; in particular, it relates to the technical field of magnesium smelting equipment; in particular, it relates to the technical field of a microwave carbon method magnesium smelting furnace. Background technique [0002] Magnesium compounds were discovered by humans in 1755, and metal magnesium was first discovered by humans in 1774. It was named after the ancient Greek city Magnesia, and the element symbol is Mg. It was confirmed to be useful in 1808, and it was first used in industry in Germany in 1886, and now it has a history of 129 years. Among practical metal materials, magnesium and its alloys have low density and are known as ultra-light materials in the 21st century. Adding ceramic reinforcements to magnesium can significantly improve the elastic modulus, strength, wear resistance and high temperature re...

AI Technical Summary

Problems solved by technology

However, the deficiencies, defects and drawbacks of the known Pidgeon method are: high energy consumption, serious environmental pollution, short equipment life and high cost, small production capacity, low purity and high cost

Specifically: 1. High energy consumption: Heat sources other than the Pidgeon method are basically the heat generated by liquid fuel, gas fuel or solid fuel, and the vast majority of them use solid fuel coal as fuel. One ton of magnesium metal needs about 10t of high-quality coal. If calculated according to the coal consumption of 2.5kWh / kg coal power generation, this 10t of high-quality coal is equivalent to 25,000kWh. It can be seen that using coal as fuel has a very low thermal efficiency. Using solid coal (including liquid and gas fuel) as the fuel is low in thermal efficiency because most of the heat generated by fuel combustion is taken away by the flue gas

②. Serious environmental pollution: Pidgeon method uses solid, liquid and gaseous fuels to smelt magnesium and discharges too much combustion gas, causing great environmental pollution

③, equipment life is short and cost is high: the Pidgeon method uses external heating, the vacuum degree in the equipment tube is high, the damage to the high temperature steel alloy is very serious, and the service life of the equipment is short; at the same time, the consumption of the equipment accounts for a large 1 ton of magnesium metal costs 1500-2000 yuan equivalent to equipment, so the cost is high

④, small production capacity, low purity and high cost: Pidgeon method is heated outside the furnace, limited by heat transfer and furnace body (internal vacuum deforms under high temperature conditions), the diameter of the reaction furnace body is limited, so the output of a single furnace It is also limited. In order to reach a certain production scale, more reaction furnaces have to be manufactured, which greatly increases the manufacturing cost and investment of the furnace body and auxiliary equipment. The labor intensity of this situation is high, and it is impossible to realize large-scale industrial production and automation At the same time, due to high coal consumption, high consumption of reducing agent, large consumption of tank materials, etc., the cost is high, resulting in almost no profit for my country's magnesium smelters

However, it is worth noting that at present, there is no large-scale smelting equipment and control technology for systematic research on microwave calcination and the formation of a theoretical system.

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