Sealing method of gas making furnace discharging ash round door and device

Abstract

The invention discloses a sealing method of a gas making furnace discharging ash round door and a device. The sealing method provided by the invention is characterized in that a port arranged on the bottom part of an ash bucket is welded with a sealing base, an end surface of the sealing base is fixedly provided with a convex stainless steel sealing ring, meanwhile, the discharging ash round door is fixedly provided with a rubber plate for fully covering the stainless steel sealing ring, and when the discharging ash round door covers the sealing base, the rubber plate covers the stainless steel sealing ring so as to form the sealing of the port arranged on the bottom end of the ash bucket. The sealing method and the device provided by the invention have the advantages that the sealing property is better, the gas in the furnace is free of bias current, the condition of the furnace is stable, the gas loss is reduced, the consumption of steam and coal is reduced, the consumption of the circulating water is saved, the power consumption is saved, and a field environment is improved; the operation period of the gas making furnace is prolonged, the longest use of the operation period can achieve more than one month, a sealed requirement is also met under the condition of the decrustation of the discharging ash round door, and the maintenance load is reduced; an ash bucket water filling valve avoids frequent adding water as before, a right amount of water is only added when the ash is discharged, and so that the round door is prevented from being burnt by the ash after the decrustation; the sealing device has the advantages that the structure is simple, the cost is lower, and the price of each set is about **yuan.

Description

technical field

[0001] The invention relates to the technical field of gas-generating furnaces in the ammonia synthesis industry, in particular to a sealing method and device for the lower ash round door of the gas-generating furnace. Background technique

[0002] In the synthetic ammonia industry, the sealing method of the round door of the gas generator is usually to seal the lower port of the ash hopper through the rubber ring installed in the rubber ring groove on the lower ash round door. Although this sealing method is simple, the apron cannot be installed after the apron groove is corroded. In addition, the apron is also susceptible to thermal expansion and deformation when the temperature of the ash hopper is high, and the round door is prone to leakage when the ash is discharged. These problems often cause The loss of steam and coal has become a governance problem. Therefore, the sealing mode of the lower ash round door of the existing gas-making furnace is still ...

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