Chute device for copper bar production and copper bar manufacturing method

Abstract

The invention provides a chute device for copper bar production and a copper bar manufacturing method. The chute device has a preset inclination angle and comprises a rotary chute, a curved chute and a straight chute, wherein the rotary chute, the curved chute and the straight chute are connected in sequence, and a molted copper circulating channel is formed in the rotary chute, the curved chute and the straight chute; and the rotary chute is connected to the rear side of a melting furnace, and the curved chute is connected to the rear side of the rotary chute at a preset horizontal rotating angle, so that when the melting furnace drives the rotary chute to swing, molten copper flowing into the rotary chute from the melting furnace flows into the curved chute and the straight chute. A plurality of nozzles are arranged on the chute device at intervals, combustible gas led into the chute device through the nozzles is premixed with air and then burnt for reduction and heat preservation of the molted copper flowing into the chute device, and the molted copper is prevented from being oxidized. The chute device is formed by connecting the chutes, each chute is formed by splicing a plurality of prefabricated blocks, a plurality of heat-insulation and heat-preservation materials are attached to the outer sides of casting materials, and thus at least the problems that refractory layers of the chutes fall, expanding deformation is caused, the heat loss is large, and maintenance is inconvenient are solved.

Description

technical field [0001] The invention relates to the field of copper rod manufacturing, in particular to a copper rod production chute device and a copper rod manufacturing method using the chute device. Background technique [0002] In the dip-coating copper rod production process, the electrolytic copper is preheated in the preheating furnace to burn off the surface attachments of the copper plate, and then enters the melting furnace to melt into copper liquid, and then enters the holding furnace through the chute. The chute is mainly composed of shell, pouring material and burner; the main function of the chute is to make the natural gas and air premixed in the chute to burn, to produce CO, CO2 and other components, to reduce and keep the copper liquid flowing into the chute, and to avoid the oxidation of the copper liquid . The chute is an integral chute. During the production process, the heat insulation effect of the chute is poor, and the temperature of the chute shel...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a copper rod production chute device and a copper rod manufacturing method, which are formed by connecting several sections of chute, and each chute is spliced ​​by a plurality of prefabricated blocks, and multi-layer heat insulation is mounted on the outside of the pouring material , Insulation materials, to at least solve the problems of refractory layer peeling, expansion deformation, large heat loss, and inconvenient maintenance of the chute

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