Spraying type dust blower

Abstract

The invention discloses a spraying type dust blower. A spraying pipe box and a travelling device for driving the spraying pipe box to travel front and back and left and right are included. The spraying pipe box is internally provided with a spraying hose wound around a hose rotation disc, a detection system, a guiding system and a cooling system. After sequentially passing through the systems, thespraying hose is output from a hose outlet in the bottom of the spraying pipe box and conveyed into a hearth which is about to be subjected to dust cleaning. High-pressure water sprayed out of a sprayer at the lower end of the spraying hose conducts strong cold-heat exchange with high-temperature caking slag on a high-temperature screen type overheater, the second flue film type wall heated faceand the third flue film type wall heated face within the purging range, accordingly, micro explosion happens to the caking slag position, the caking slag is cracked and falls off on the heated faces under the micro explosion action, and accordingly the effects of dust cleaning and slag removal are achieved.

Description

technical field [0001] The invention relates to a furnace soot blower, in particular to a spray soot blower. Background technique [0002] As the boiler parameters increase in the direction of high temperature and high pressure, the boiler capacity increases. Since the cross-sectional size and height of the furnace cannot increase proportionally, the heat load of the furnace cross-section, the heat load of the water-cooled wall, and the maximum temperature in the furnace all increase with the increase of the boiler capacity. As the temperature increases, the heat of vaporization of water gradually decreases, while the superheated heat required for steam superheating increases greatly, that is, the proportion of heat absorbed by the evaporation heating surface decreases, while the proportion of heat absorbed by the superheater increases. From the perspective of preventing slagging on the convective heating surface, the temperature of the flue gas at the furnace outlet should ...

AI Technical Summary

Problems solved by technology

[0003] However, the increase of the panel superheater and furnace flue will lead to more serious slagging and ash accumulation on the water wall. Boiler slagging will not only affect the output, parameters, thermal efficiency and normal operation of the suction fan of the boiler, but also make exhaust The rise of smoke temperature will also cause a vicious circle, leading to major personal and equipment accidents, resulting in major economic losses

[0004] Therefore, in the design of the boiler, in order to effectively remove the ash in the heating area of ​​the boiler, ensure that the heating surface is clean, and achieve a good heat transfer effect on the heating surface, it is necessary to arrange a soot blower on the heating surface of the boiler, but for this type of panel superheater As for the boiler with the furnace flue, due to the limited space around the boiler, the conventional soot blower cannot achieve the soot blowing effect. At this time, a new type of soot blower is needed to meet the soot blowing requirements.

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