Low-slag-rate metal smelting device

Abstract

The invention relates to the field of metal treatment, and particularly relates to a low-slag-rate metal smelting device. The low-slag-rate metal smelting device comprises a rack, wherein a gas conveying pipe is mounted at one side of the rack; a gas exhaust pipe is mounted at the other side of the rack; the gas exhaust pipe is connected with the gas conveying pipe through a heat assisting frame; a suction fan is mounted at one end of the gas conveying pipe; a heater is mounted on the middle part of the gas conveying pipe; a cover plate is mounted at the upper end of the rack; a placing device is arranged inside the rack; the placing device comprises a crucible; the two ends of the upper part of the crucible are equipped with rotary rods; and the other sides of the rotary rods are equipped with bearing bases fixed in the rack. The gas conveying pipe, the gas exhaust pipe, the heat assisting frame, the suction fan, the heater, the placing device, a shaking device and a power device are arranged, so that the device always keeps hot air circulation during smelting, and therefore, a smelting speed and a separation rate are favorably increased; and exhausted waste gas passes through the heat assisting frame, so that heat of the waste gas is used for heating air which is just sucked by the gas conveying pipe, and as a result, energy recovery is facilitated, and electric energy consumed by the heater is reduced.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a metal smelting device with a low slag rate. Background technique [0002] Metal smelting is a process in which metal materials and other auxiliary materials are put into a heating furnace to be melted and tempered. The material in the furnace undergoes certain physical and chemical changes at high temperature (1300-1600K), and crude metal or metal enrichment and slag are produced. Pyrometallurgical process, heating furnace smelting can be divided into blast furnace smelting, reverberatory furnace smelting, electric furnace smelting, etc. Among them, reverberatory furnace smelting is more common. With the rapid development of my country's electronics, industry and other fields, electronic waste, copper-containing waste, industrial waste slag, etc. are constantly increasing. How to deal with these waste efficiently and environmentally friendly is very important. At present, although...

AI Technical Summary

Problems solved by technology

[0002] Metal smelting is a process in which metal materials and other auxiliary materials are put into a heating furnace to be melted and tempered. The material in the furnace undergoes certain physical and chemical changes at high temperature (1300-1600K), and crude metal or metal enrichment and slag are produced. Pyrometallurgical process, heating furnace smelting can be divided into blast furnace smelting, reverberatory furnace smelting, electric furnace smelting, etc. Among them, reverberatory furnace smelting is more common. With the rapid development of my country's electronics, industry and other fields, electronic waste, copper-containing waste, industrial waste slag, etc. are constantly increasing. How to deal with these waste efficiently and environmentally friendly is very important. At present, although most melting furnaces on the market can quickly process these waste, however, the existing smelting is designed to heat the material in the smelting chamber after the heated air flow enters the smelting chamber, and its residence time is relatively short, so that after the heated air flow heats the material, it takes away a large amount of waste heat, so that it can be High energy consumption, low heat energy utilization rate, high production cost

[0003] After searching, the Chinese Patent No. CN210441656U discloses a recycled metal smelting device, which includes a shell and an end cover hinged with the shell, and the inner wall of the shell and the inner wall of the end cover form a chamber; the inner wall of the shell is fixed. There is an arched partition, and a first through hole is vertically opened on the partition. The partition divides the chamber from top to bottom into an upper melting chamber and a lower melting chamber; Material port and exhaust port; the side wall of the shell is provided with an air inlet connected to the upper melting chamber, and the outer bottom of the shell is provided with a discharge port connected with the lower melting chamber; the top of the end cover is provided with a motor, and the bottom of the motor is A rotating shaft is connected to the output shaft, and the bottom end of the rotating shaft passes through the end cover and is arranged in the upper melting chamber. The rotating shaft is fixed with the first dispersing paddle, the second dispersing paddle and the third dispersing paddle located in the upper melting chamber; the first The dispersing paddle, the second dispersing paddle and the third dispersing paddle are all equipped with a heating sheet. The utility model can improve the heating efficiency, save energy and reduce emission. The heating efficiency is not high, so that the melting speed of the device is slow

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