Preheating furnace

Abstract

The invention discloses a preheating furnace. The preheating furnace comprises a preheating furnace stepped furnace body and the like, the preheating furnace stepped furnace body is located between a furnace body protective cover and a furnace body bearing beam, and a smoke temperature sensor is located on one side of an air-induced outlet; a split type preheating burners are located on one sides of automatic igniters, a feeding port is located above swing type supporting columns and on the right side of the furnace body protective cover, and a vibration exciter conveying device is located on the right upper portion of the furnace body bearing beam; and the front end temperature sensor is located on one side of the furnace body protective cover, a discharging port is located on one side of the preheating furnace stepped furnace body and the furnace body protective cover, and a natural gas rotary furnace is located on one side of the discharging port, wherein the automatic igniters and the split type preheating burners are all positioned inside the preheating furnace stepped furnace body. The preheating furnace can be used for effectively preheating and is simple in structure, low in cost and convenient to use.

Description

technical field [0001] The invention relates to a furnace, in particular to a preheating furnace. Background technique [0002] Scrap steel enters the refining furnace for preheating, and the following problems will occur during preheating: [0003] First, the preheating effect is not ideal, and the expected temperature cannot be achieved; [0004] Second, the recovery of waste heat is zero, and it is impossible to use waste heat to preheat raw materials; [0005] 3. Irregular raw materials are easy to fall into the gap between the chain plates and cause material jams; [0006] Fourth, the raw materials are not evenly fed into the furnace, and the piles of raw materials vary in size; [0007] Fifth, strict requirements on raw materials; [0008] Sixth, the smelting efficiency is low, the cost is high, and the casting quality is low; [0009] Seven, the flue gas and exhaust gas produced are more, and the environmental protection effect is poor. Contents of the inventio...

AI Technical Summary

Problems solved by technology

[0003] First, the preheating effect is not ideal, and the expected temperature cannot be achieved;

[0004] Second, the recovery of waste heat is zero, and it is impossible to use waste heat to preheat raw materials;

[0005] 3. Irregular raw materials are easy to fall into the gap between the chain plates and cause material jams;

[0006] Fourth, the raw materials are not evenly fed into the furnace, and the piles of raw materials vary in size;

[0007] Fifth, strict requirements on raw materials;

[0008] Sixth, the smelting efficiency is low, the cost is high, and the casting quality is low;

[0009] Seven, the smoke and waste gas produced are more, and the environmental protection effect is poor

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