Aluminum slab pit heating furnace with soaking function

Abstract

The invention discloses an aluminum slab ingot pit type heating furnace with a soaking function. The aluminum slab ingot pit type heating furnace mainly comprises a box furnace body, a furnace lid, a flow guide system, a heating system and air blowers, wherein the air blowers are positioned at the bottom of a furnace chamber; the flow guide system comprises horizontal flow guide plates and vertical flow guide plates; the heating system is positioned at the bottom of the furnace chamber, and arranged in the vertical flow guide plates; a sealed cavity is formed among the vertical flow guide plates and the horizontal flow guide plates; the high temperature centrifugation air blowers are adopted; air outlets are formed at certain intervals in the vertical flow guide plates symmetrically mounted on furnace walls on two sides of the furnace chamber. According to the aluminum slab ingot pit type heating furnace, hot wind is enabled to pass through all charging inside the furnace, so that synchronous heating-up capability of the charging is guaranteed, and the situation that the heat preservation time of the furnace temperature is prolonged due to overlarge temperature difference of the charging in the aluminum slab ingot temperature rise period is avoided more effectively so as to shorten the entire soaking and heating-up period; the heat exchange effect and the uniformity of the charging temperature are effectively improved, and soaking and heating requirements of aluminum slab ingots of different size specifications can be satisfied.

Description

technical field [0001] The invention relates to a pit-type heating furnace with a soaking function, which is used for soaking aluminum and aluminum alloy flat ingots and heating before hot rolling, and belongs to the field of heat treatment equipment. Background technique [0002] Aluminum slab heating furnace is a heat treatment equipment for preheating aluminum and aluminum alloy slabs to the rolling start temperature. There are two main types of traditional aluminum slab heating furnaces: trolley type and push type. The aluminum slab trolley-type heating furnace adopts the feeding and discharging method of the whole furnace. When the heated aluminum slabs are released from the furnace, a trolley must be used to take out the whole furnace of aluminum slabs. out of the oven, resulting in additional energy waste, difficult operation and no energy saving, and low production efficiency. The aluminum slab pusher heating furnace is a continuous production, and the temperature ...

AI Technical Summary

Problems solved by technology

However, since the heating system of this aluminum flat ingot pit-type heating furnace is connected to the furnace, and the centrifugal effect of the circulating fan on the hot gas in the furnace is not strong, the temperature of the bottom layer in the furnace is obviously higher than that of the upper layer, and the heat transfer effect is not obvious. The temperature rise and the uniformity of the material temperature in the furnace also need to be strengthened

In addition, this aluminum slab pit-type heating furnace also has more restrictions on the placement of aluminum slabs into the furnace

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