Aluminum material spiral pushing preheater

Abstract

The invention discloses an aluminum material spiral pushing preheater. The aluminum material spiral pushing preheater comprises a conveying pipe, a spiral pushing shaft inserted in the conveying pipe and coaxially arranged with the conveying pipe, and a motor for driving the spiral pushing shaft to rotate; a feed port and a discharge port are respectively formed in two ends of the conveying pipe; an intake pipe and an exhaust pipe are also arranged on the conveying pipe; the intake pipe is connected with an exhaust pipe of an aluminum material melting furnace; at least one of the feed port and the discharge port is positioned between the intake pipe and the exhaust pipe; or at least one of the intake pipe and the exhaust pipe is positioned between the feed port and the discharge port. The aluminum material spiral pushing preheater is simple in structure and convenient to manufacture, can largely increase the initial temperature of aluminum materials added in the aluminum material melting furnace, reduces the pressure of a hearth under ultrahigh temperature demand, fully uses high-temperature waste gas for preheating, improves the energy utilization efficiency, reduces the enterprise cost, and improves the enterprise benefit.

Description

technical field [0001] The invention relates to the field of aluminum product manufacturing machinery, in particular to an aluminum material spiral push preheating machine. Background technique [0002] Aluminum material melting furnace is divided into aluminum block melting furnace and aluminum chip melting furnace. Aluminum block melting furnace is a casting equipment that provides aluminum liquid for the casting process and adjusts the alloy composition according to production needs. The aluminum chip melting furnace is a casting equipment that melts and recycles aluminum chips and adjusts the alloy composition according to production needs. Under the impetus of circulating large, medium and small, the texture of aluminum water is homogenized, and the temperature layer is eliminated. The main problems are: first, the aluminum melting furnace directly discharges the high-temperature flue gas in the furnace to the atmosphere through the chimney during the melting process o...

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Problems solved by technology

The main problems: one is that the aluminum material melting furnace directly discharges the high-temperature flue gas in the furnace to the atmosphere through the chimney during the aluminum material melting process, so that not only wastes energy and pollutes the environment, but also has low melting efficiency; Under storage conditions, the temperature of the aluminum material is relatively low, and the temperature rises rapidly to the melting point in the furnace until it melts into molten aluminum. The temperature difference is large and the heat absorbed is large, so it is necessary to further increase the heat supply

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