Control method and system of insulation board for ignition furnace

Abstract

The invention relates to a control method and system of an insulation board for an ignition furnace, wherein the method comprises the following steps of: (1) presetting a standard spacing value range between the insulation board and the feeding surface of a sintering machine; (2) detecting the actual spacing value between the insulation board and the feeding surface of the sintering machine in real time in the running process of the sintering machine; (3) comparing the obtained actual spacing value with the standard spacing value range, entering the step (5) if the actual spacing value is in the standard spacing value range, and entering the step (4) if the actual spacing value is not in the standard spacing value range; (4) sending a control command to drive the insulation board, and adjusting the height of the insulation board in real time; and (5) sending a control command to stop driving the insulation board. The control system comprises the insulation board, a lifting component, a controller and a spacing detection component, wherein the standard spacing value range between the insulation board and the feeding surface of the sintering machine is preset on the controller and the spacing detection component is used for detecting the actual spacing between the insulation board and the feeding surface of the sintering machine. The control method and the control system have the advantages of being high in degree of automation, improving the control precision and the work effectiveness of the insulation board, reducing the labor intensity of operating personnel, increasing the system operating rate of the ignition furnace, enhancing the safety of the ignition furnace, and the like.

Description

technical field [0001] The invention mainly relates to the field of sintering equipment, in particular to a control method and a control system suitable for a heat shield of an ignition furnace for sintering. Background technique [0002] "Sintering" is to transform powdery materials into dense bodies, which is a traditional process. The sintering process occupies an important position in the ironmaking system, and its function is to provide high-quality sintered ore for the ironmaking blast furnace to produce molten iron. The ignition furnace and its ignition link are a very important link in the sintering process. In the modern sintering process, the ignition furnace is used to provide a high-temperature ribbon flame to the surface of the mixture, so that the solid fuel in it is ignited and burned, and the surface mixture is sintered under the heat release of the high-temperature flue gas of the ignition furnace and the solid fuel combustion. At the same time, sufficient...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual operation of the sintering machine, the cloth is often discontinuous due to various factors, and the material level on the trolley is sometimes high and sometimes low.

However, if the lifting height of the heat shield of the ignition furnace cannot change with the change of the material level at this time, accidents are likely to occur

[0005] 1. If the material level is lowered and the height of the heat shield remains unchanged, the distance between the lower edge of the heat shield and the material surface may be too large. At this time, the flame and hot gas in the furnace of the ignition furnace are likely to be ejected from the gap If the material surface rises and the height of the heat shield remains unchanged, the distance between the lower edge of the heat shield and the material surface may be too small, making the heat shield a secondary scraper. The material plate will cause material accumulation between the primary hanging material plate, which will not only affect the output of the sintering machine, but even cause damage to the heat shield plate and make it unusable

[0006] 2. Even if the on-site operator of the ignition furnace discovers the problem of the height of the material surface at the first time and adopts the method of manually adjusting the height of the heat shield, there are still problems such as a high risk factor in the operation of the gas area, and the hoisting handle is too hot and difficult to operate.

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