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Cyclone burner and its operation method

A cyclone combustion and cyclone technology, which is applied to burners, lighting and heating equipment, etc., can solve the problems of small return flow and unsuitable burning intensity, and achieve the effect of increasing service life, saving heat and reducing failure rate.

Inactive Publication Date: 2006-11-22
唐艳芬
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a new type of cyclone burner in order to solve the problems of small return flow at the center of the existing burner, inapplicability to coal water slurry combustion and low combustion intensity.

Method used

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  • Cyclone burner and its operation method
  • Cyclone burner and its operation method

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Embodiment 1

[0039] The usage method of the cyclone burner of the present invention is explained below in the manner of an embodiment.

[0040] Prepare a cyclone burner according to the present invention, use the coal water slurry produced by Beijing Coal Water Slurry Demonstration Factory as fuel, and under the condition of rated load, the amount of burning slurry is 630 kg / hour. The coal water slurry produced by the Beijing Coal Water Slurry Demonstration Plant has a calorific value of 18.5MJ / kg and a theoretical air volume of 4.80Nm 3 / kg coal water slurry, based on 630 kg of coal water slurry per hour, the theoretical air volume is 3024Nm 3 / h. If a conventional burner is used, the air excess coefficient of coal-water slurry combustion is usually 1.2, and the air supply volume is 3628N m under rated load 3 / h. If the cyclone burner of the present invention is used, the air supply coefficient can be 0.6~0.9, such as adopting an air supply coefficient of 0.75, then the air volume is 3...

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Abstract

The invention relates to a cyclone burner and relative application, for solving the problems that small reflux, inability for water coal pulp burning and lower burning strength of present burner. Wherein, it comprises a frame (1), a water coal pulp atomizer or coal nozzle and its jack (6), a cyclone burning room (12), and an air tube (9); the inner wall of cycle burning room has several layers of wind holes, while each layer has several small wind holes; each wind hole is tangent to the inner wall of burning room, to form strong cycle field inside the burning room. The inventive burner uses wind refrigeration, to save energy, accelerate burning, and simplify the structure; and it uses small wind hole to supply wind, to avoid slag accumulation at the wind port, and accelerate the dispersion between fuel and air; and it has anoxycausis to restrain the generation of NOx and adjust the temperature of burner.

Description

technical field [0001] The present invention relates to a burner and its use method, more specifically, the present invention relates to a burner for coal-water slurry and its use method. Background technique [0002] More than a dozen countries in the world have carried out research and development of coal-water slurry technology. The focus of foreign research lies in the establishment of large-scale pulp mills and the engineering technology of converting oil-fired boilers to coal-water slurry in power plants. China is a developing country. At present, there are few power station boilers with fuel oil. For many coal-fired boilers in power stations, it is more economical to adopt a comprehensive smoke and dust control method than to change to coal-water slurry, and it is more in line with the current national conditions. However, for many medium and small boilers and kilns burning coal water slurry, the advantages of energy saving and environmental protection of coal water s...

Claims

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Application Information

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IPC IPC(8): F23D11/10
Inventor 马大健唐艳芬王世均冯圣印赵立合张玉膜马三剑
Owner 唐艳芬
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