Blast furnace copper cooling plate water leakage inspection method and online cutting and blocking method

Abstract

The invention discloses a blast furnace copper cooling plate water leakage inspection method and an online cutting and blocking method. Firstly, the water leakage direction is determined according to the temperature tendency of a furnace body thermocouple and the single-direction flow meter fluctuation tendency of a cooling system, ignition is conducted according to the exhausting and breathing situation, and water leakage string copper cooling plates are determined; and finally, a specific water leakage copper cooling plate is determined in the water leakage string copper cooling plates. According to the blast furnace copper cooling plate water leakage inspection method and the online cutting and blocking method, through the water feeding and retreating valve water closing examination, whether the copper cooling plate is damaged or not is judged, if no breathing phenomenon exists in a valve, it is shown that cooling equipment is in good condition, and if breathing of an exhaust valve happens, it is shown that the cooling equipment is damaged, confirmation is achieved through assistance of ignition of outer coal gas, a specific string and a specific block are sought, industrial water circulates through changing for serious damage, and the water leakage amount is controlled. The specific cooling plate is sought firstly, then judgment of an inner cavity and an outer cavity is conducted, and through the outer metal hose connecting manner change, online dismounting and cutting and blocking are conducted. By means of the blast furnace copper cooling plate water leakage inspection method and the online cutting and blocking method, an inner channel and an outer channel of the damaged copper cooling plate can be rapidly sought and cut away, a large amount of cooling water is prevented from leaking into a furnace, and the service life of the blast furnace is prolonged.

Description

technical field [0001] The invention belongs to the technical field of safe operation of ironmaking blast furnaces, and in particular relates to a method for checking water leakage of a copper cooling plate of a blast furnace and an online blocking method. Background technique [0002] After a few years of operation of a large blast furnace, the refractory material of the blast furnace body is unevenly worn or damaged, resulting in damage to the cooling equipment and furnace shell of the blast furnace, which brings difficulties to the safe and stable operation of the blast furnace and seriously affects the technical and economic indicators of the blast furnace . [0003] TISCO 4350M 3 After 4 years of blast furnace operation, the furnace shell burns red sometimes, and the copper cooling plate begins to be damaged. Finding the damaged copper cooling plate is time-consuming and laborious and affects the stable operation of the blast furnace. [0004] 4350M 3 The blast furna...

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Problems solved by technology

[0006] At present, after the copper cooling plate is damaged, it is necessary to install pressure gauges, plugs and other equipment. The workload is heavy, and it is difficult to find the damaged copper cooling plate. Increase Fuel Decrease Production