Evaporation cooling device for pusher type heating furnace producing superheated steam

Abstract

The invention provides an evaporation cooling device with the superheated steam producing function for a pusher-type heating furnace. The evaporation cooling device comprises a water feed pump, a steam pocket, a preheating section transverse water pipe, a preheating section, and at least one of a heating section transverse water pipe, a heat uniformizing section transverse water pipe and a crossing water pipe. A water feeding inlet of the steam pocket communicates with a water outlet of the water feed pump. The preheating section is arranged in a furnace hearth of the heating furnace, a steaminlet of the preheating section communicates with a steam outlet of the steam pocket, and a steam outlet of the preheating section communicates with a superheated steam pipe network outside the heating furnace. The heating section transverse water pipe is arranged in a heating section, the heat uniformizing section transverse water pipe is arranged in a heat uniformizing section, and the crossingwater pipe is arranged in the furnace hearth of the heating furnace and transversely crosses the preheating section, the heating section and the heat uniformizing section. A water inlet of at least one of the heating section transverse water pipe, the heat uniformizing section transverse water pipe and the crossing water pipe communicates with a circulating water outlet of the steam pocket, and awater outlet of at least one of the heating section transverse water pipe, the heat uniformizing section transverse water pipe and the crossing water pipe communicates with a steam-water mixture inletof the steam pocket. The energy quality of waste heat recovery of the heating furnace is improved, and the fuel consumption of the heating furnace is also reduced.

Description

technical field [0001] The invention relates to the technical field of vaporization cooling devices for heating furnaces, and more specifically, to a pusher type heating furnace vaporization cooling device for producing superheated steam. Background technique [0002] At present, domestic steel rolling mills generally adopt two water pipe cooling methods for pusher type heating furnaces: water cooling and vaporization cooling to ensure the temperature limit requirements of the water pipes supporting the billet in the heating furnace. The water-cooling method not only does not recover the waste heat of the water pipes in the furnace, but also consumes a lot of energy to maintain the operation of the water-cooling system. The current water-cooling method of the pusher type heating furnace is rarely used. The evaporative cooling method can not only recover waste heat, but also consumes little energy in operation. However, the current evaporative cooling system uses an evaporati...

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Problems solved by technology

[0003] In view of the above problems, the purpose of the present invention is to provide a pusher type heating furnace vaporization cooling device that produces superheated steam, to solve the problem of poor quality steam produced by the vaporization cooling device in the prior art

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