Top-burning hot-blast stove with cone-column composite vault structure

Abstract

The invention discloses a top-burning hot-blast stove with a cone-column composite vault structure, and belongs to the field of heat energy technology. The top-burning hot-blast stove with the cone-column composite vault structure comprises a stove body and a combustor, wherein the stove body is composed of an inlet, a hot wind outlet, supporting columns, a grate, a regenerative chamber, and a combustion chamber; column chamber walls above the combustor and cone top walls are integrated to form a mixing chamber; one side of the column chamber walls is provided with an air inlet, the column chamber walls are provided with an air circuit, and the inner side of the air circuit is provided with air nozzles; and one side of the cone top walls is provided with a gas inlet, the cone top walls are provided with a gas circuit, and the inner side of the gas circuit is provided with gas nozzles. The top-burning hot-blast stove is used for heat accumulation of wind supply to blast furnaces. Combustion is sufficient, thermal efficiency is high, and cost is low.

Description

technical field [0001] The invention relates to a top-combustion hot blast stove with a cone-column compound vault structure, which relates to the technical field of thermal energy engineering; in particular, it relates to the technical field of a cone-column compound vault structure top-combustion hot blast stove. Background technique [0002] A hot blast stove is a facility that supplies hot blast to an ironmaking blast furnace. Its working principle is to generate high-temperature flue gas by burning gas through the burner of the hot blast stove, heat the regenerator in the hot blast stove and store heat, and then the cold blast enters the hot blast stove from the lower part of the hot blast stove, and is gradually absorbed by the hot blast during the rising process. The heat accumulator is heated and blows air at a high temperature. The high-temperature blast enters the hot blast main pipe through the hot blast outlet and the hot blast branch pipe, and is sent to the bl...

AI Technical Summary

Problems solved by technology

[0003] At present, there are known technologies and current status---the deficiencies, defects and disadvantages of the above-mentioned top-fired hot blast stoves are: ①, the height of the burner and the hot blast stove is relatively high, resulting in high investment costs; ②, the separation of air and gas The mixing method and space are unreasonable, resulting in uneven mixing of air and gas; ③, due to uneven mixing of air and gas, resulting in insufficient combustion, long flame length and burning into the checker bricks, resulting in deformation or settlement of the regenerator ; ④, due to the above-mentioned items, resulting in uneven temperature distribution and low thermal efficiency

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