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Combustor of top-combustion type hot-blast stove

A technology of burners and hot blast stoves, which is applied in the direction of gas fuel burners, burners, and combustion methods, which can solve the problems of low combustion efficiency of hot blast stoves, improve gas utilization, reduce the risk of deflagration, and evenly mix the airflow Effect

Pending Publication Date: 2019-03-01
MCC CAPITAL ENGINEERING & RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low combustion efficiency of the existing hot blast stove, the present invention provides a top-fired hot blast stove burner, which can make the air flow mix evenly, and has high combustion efficiency and good structural stability , the beneficial effect of long life

Method used

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  • Combustor of top-combustion type hot-blast stove
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  • Combustor of top-combustion type hot-blast stove

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] A top-fired hot blast stove burner, comprising a burner outer profile 10, the burner outer profile 10 is an upright cylindrical structure, the burner outer profile 10 contains a burner inner cavity 20, and the burner outer profile 10 The side wall is provided with a gas ring 32 and a combustion air ring 41, the gas ring 32 communicates with the inner cavity 20 of the burner through the upper gas nozzle 31 and the lower gas nozzle 34, and the combustion air ring 41 passes through the upper combustion air nozzle 44 and the lower combustion air nozzle 43 are communicated with the burner internal cavity 20, and the connection between the upper gas nozzle 31, the upper combustion air nozzle 4...

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Abstract

The invention discloses a combustor of a top-combustion type hot-blast stove. The combustor comprises a combustor exterior outline, a combustor inner cavity, a coal gas introduction system and a combustion air introduction system, wherein the combustor inner cavity is formed by building a refractory lining in the combustor exterior outline; the coal gas introduction system and the combustion air introduction system are both arranged in the refractory lining; coal gas and combustion air are uniformly sprayed into the combustor inner cavity through a coal gas nozzle and a combustion air nozzle respectively and are combusted after being fully mixed at the lower part of the combustor inner cavity; high temperature combustion gas is uniformly distributed on the surface of a heat accumulator after passing through a throat and an expansion segment. The combustor has the advantages of being uniform in gas flow mixing, high in combustion efficiency, good in structural stability and long in service life.

Description

technical field [0001] The invention relates to the field of smelting equipment, in particular to a top-fired hot blast stove burner. Background technique [0002] The hot blast stove is one of the main facilities for blast furnace ironmaking production, and its main function is to continuously provide hot blast to the blast furnace. According to different structural forms, hot blast stoves can be divided into internal combustion type, external combustion type and top combustion type. Due to the inherent defects of internal combustion hot blast stove and external combustion hot blast stove, top combustion hot blast stove has become the first choice for blast furnace ironmaking production. [0003] At present, there are many types of top-fired hot blast stoves used in my country's blast furnace ironmaking production. The main defects are: the position and size of the gas nozzle and the combustion air nozzle are unreasonable, resulting in uneven air mixing and longer flame co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B9/10
CPCC21B9/10F23D14/24C21B9/14
Inventor 冯燕波罗凯全强陈秀娟张建梁段国建王得刚李照麟
Owner MCC CAPITAL ENGINEERING & RESEARCH
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