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Multistage energy-saving large-impulse multifuel-combustion combustor

A burner and impulse technology, applied in the direction of burners, gas fuel burners, combustion methods, etc., can solve the problems of increasing production line equipment investment and operating costs, physical heat and chemical heat waste, etc., to achieve convenient operation and management, reduce Effects of equipment investment, land occupation and cost reduction

Pending Publication Date: 2018-08-10
JIANGSU FENGGU ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It not only increases the equipment investment and operating cost of the production line, but also causes waste of physical heat and chemical heat in the flue gas

Method used

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  • Multistage energy-saving large-impulse multifuel-combustion combustor
  • Multistage energy-saving large-impulse multifuel-combustion combustor
  • Multistage energy-saving large-impulse multifuel-combustion combustor

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0033] Such as Figure 1-5 Shown: a multi-stage energy-saving high-impact mixed combustion burner, characterized in that the burner includes a combustion shell 1, a tubular gas pipe 2 arranged on the combustion shell, a primary air duct 3, and a secondary air duct 4. Tertiary air pipe 5, flue gas pipe 6 and swirl blade 7;

[0034] Combustion air is divided into multiple stages to mix and burn. By setting three air ducts, the amount of each stage can be adjusted to obtain the best flame length and temperature. To ensure the rotary furnace temperature requirements.

[0035] The combustion casing 1 includes a first casing 1.1, a second casing 1.2 and a third casing 1.3;

[0036] Both the first shell and the second shell are hollow cylindrical structures; and the outer diameter of the cylinder of the second shell is larger than the outer diameter of the first sh...

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Abstract

The invention relates to the technical field of combustors, in particular to a multistage energy-saving large-impulse multifuel-combustion combustor. The multistage energy-saving large-impulse multifuel-combustion combustor comprises a combustion shell body and the combustion shell body comprises a first shell body, a second shell body and a third shell body; one end of a coal gas pipe is arrangedat the left side of the first shell body and communicates into the combustion shell body; one end is arranged at the lower end of the outer surface of the first shell body and the other end communicates into the coal gas pipe; one end of a secondary air pipeline is arranged at the upper end of the outer surface of the first shell body and the other end of the secondary air pipeline communicates into the coal gas pipe; one end of a tertiary air pipeline is arranged at the upper end of the outer surface of the second shell body and the other end of the tertiary air pipeline communicates into the coal gas pipe; injection devices are arranged in both of a primary air pipeline and the tertiary air pipeline; one end of a flue gas pipe is arranged at the upper end of the outer surface of a cylinder part of the third shell body and the other end of the flue gas pipe communicates into the coal gas pipe. By means of the combustor, the high-temperature flue gas of a submerged arc furnace can bedirectly and effectively utilized, and the length and strength of flame can be flexibly adjusted by the ratio of center injection primary air, secondary air and tertiary flue gas injection air.

Description

technical field [0001] The invention relates to an energy-saving mixed-firing burner, in particular to a burner for heating of rotary kiln equipment in an RKEF production line, in particular to a multi-stage energy-saving high-impact mixed-firing burner. Background technique [0002] The drying or roasting of ore powder in the RKEF production line is currently completed by rotary kiln equipment, and a super-power burner is required to provide heat energy in the kiln hood. The fuel is pulverized coal, coal gas or natural gas. If the super-high-power burner does not mix enough, it will emit black smoke, and if the combustion reaction is too concentrated, it will cause local high temperature, so that the ore powder will be over-burned and even melted and bonded. [0003] In order to solve the above problems, many domestic manufacturers have added secondary or tertiary blowers to the kiln body to ensure that the burner burns fully and control the flame length at the same time. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/24F23L9/00F23D14/58F23D14/46
CPCF23D14/24F23D14/46F23D14/58F23L9/00
Inventor 张晓军季亮徐科伟高晓丽
Owner JIANGSU FENGGU ENERGY SAVING TECH
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