Furnace wall protecting method for garbage combusting power generating boiler

Abstract

The invention discloses a furnace wall protecting method for a garbage combusting power generating boiler. The furnace wall protecting method comprises the following steps of preparing hot water at 60-80 DEG C, pouring a hydrochloric acid solution and an corrosion inhibitor into the hot water to be mixed and stirred, and stirring the mixture for 8-12 min at a rotating speed of 50-70 r / min to obtain a furnace wall cleaning liquid; and closing a furnace bottom port, selecting 1-2 corrosion-resistant containers and 1-2 corrosion-resistant circulating pumps, storing the furnace wall cleaning liquid obtained in the step 1 by the corrosion-resistant containers, connecting discharge ports of the corrosion-resistant containers to a safety valve of the boiler, injecting the furnace wall cleaning liquid into the boiler by the corrosion-resistant circulating pumps, and connecting a blow-down valve at the bottom of the boiler to feed inlets of the corrosion-resistant containers after the boiler isfilled with the furnace wall cleaning liquid. A new protecting layer is generated on the inner wall of the boiler, so that the stability of in-furnace combustion is guaranteed. A new oxidization filmcan be generated on the inner wall of the furnace body. The furnace wall protecting method has a good protecting property, the service life of the boiler is prolonged effectively, and economical operation is achieved.

Description

Technical field [0001] The invention belongs to the technical field of boilers, and specifically relates to a method for protecting the furnace wall of a garbage burning power generation boiler. Background technique [0002] In the face of the flood of garbage, nowadays, it is not limited to the passive "defense" of controlling and destroying garbage, but actively taking effective measures to comprehensively treat and utilize garbage in a scientific and reasonable manner; however, the boilers used for garbage burning power generation are caused by garbage. The chemical corrosion and adsorption in the boiler produce a large amount of corrosion and scaling, resulting in a reduction in the service life of the boiler. The boiler needs to be replaced after a few years of operation, which greatly increases the cost of use. The existing lack can help the old boiler descaling and Protection methods for life extension. Summary of the invention [0003] The purpose of the present invention...

AI Technical Summary

Problems solved by technology

[0002] In the face of the flooding of garbage, nowadays, it is not limited to the passive "defense" of controlling and destroying garbage, but actively takes effective measures to carry out scientific and reasonable comprehensive treatment and utilization of garbage; The chemical corrosion and adsorption in the medium produces a large amount of corrosion and scaling, which leads to the reduction of the service life of the boiler. The boiler needs to be replaced after several years of operation, which greatly increases the cost of use. The existing lack of descaling and Protective methods for life extension