Micropressure regulating system for sintering ignition furnace

Abstract

The invention provides a micropressure regulating system for a sintering ignition furnace. The micropressure regulating system comprises an air bellow branch pipe connected with an air bellow of a sintering machine and a gooseneck pipe in parallel connection with the air bellow branch pipe, wherein the air bellow branch pipe is provided with a dust-settling compartment and a dust discharging valve located below the dust-settling compartment, and the lower part of the dust discharging valve is connected with a big flue; and the gooseneck pipe comprises an ascending pipe and a straight pipe, one end of the ascending pipe is communicated with the dust-settling compartment, the other end of the ascending pipe is communicated with one end of the straight pipe, the other end of the straight pipe is connected with the big flue, and a connecting end of the ascending pipe with the straight pipe is higher than a connecting end of the ascending pipe with the dust-settling compartment. According to the micropressure regulating system for the sintering ignition furnace, dust-containing smoke and solid particles in the air bellow branch pipe of the sintering machine are distributed reasonably, and the air bellow branch pipe is prevented from being damaged by the dust-containing smoke and is prolonged in service life; and a micropressure regulating valve has the advantages of improving the precision for regulating pressure inside the hearth of the sintering ignition furnace and effectively reducing energy consumption and cost by means of controlling the sintering ignition furnace to operate stably under a micropressure state.

Description

technical field [0001] The invention relates to the technical field of sintering ignition furnaces, in particular to a micro-pressure regulating system for sintering ignition furnaces. Background technique [0002] When the sintering ignition furnace is produced, the pressure in the furnace needs to be operated at a slight pressure. When the pressure in the furnace is at positive pressure, the high-temperature flue gas in the furnace will overflow the furnace, resulting in energy waste and an increase in the temperature of the surrounding environment; when it is at negative pressure, the cold air It will be sucked into the furnace, reducing the ignition efficiency. In addition, if the negative pressure is too large, the sintered material layer laid on the sintering machine trolley will be pumped tightly, reducing the air permeability of the sintered material layer, affecting the vertical burning speed of the sintered material layer, and resulting in a decrease in the quality...

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problem that the high-speed dust-laden air flow scours the branch pipe of the bellows and the pressure adjustment accuracy of the flap valve is not high

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