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Burner

A burner, spiral channel technology, applied in the burner, combustion method, combustion type and other directions, can solve the problems of insufficient combustion of pulverized coal, unsatisfactory degree of change, etc., so that the shape and size of the flame are more easily adjustable, easy to change, well-mixed effect

Active Publication Date: 2015-12-23
HENAN HUIJIN INTELLIGENT EQUIP
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  • Abstract
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AI Technical Summary

Problems solved by technology

Although the shape of the ejected flame can be changed, the degree of change is not ideal, and the pulverized coal does not burn sufficiently

Method used

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Embodiment Construction

[0021] Such as Figure 1-5 As shown, a burner includes a central oil injection channel 10, and the oil injection channel 10 is outwardly followed by a vortex air duct 9, a swirl air duct 8, a pulverized coal air duct 7, and an outer axial flow air duct 6, wherein the vortex air duct Road 9 is composed of vortex cone-shaped spiral passages with the same rotation direction, swirl air passage 8 is composed of swirl cone-shaped spiral passages with the same rotation direction, and outer axial flow air passage 6 is composed of outer axial wind cones with the same rotation direction. form a spiral channel. The central axis of the conical spiral channel of the vortex channel 9, the swirl channel 8, and the outer axial flow air channel 6 is a cylindrical helix, and its rise angle is 15°-25°, and the taper of the conical spiral channel is 8°-15° change between.

[0022] The rotation direction of the vortex conical helical channel and the rotational direction of the swirl conical heli...

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Abstract

A burner is characterized in that a center hole is used as an oil injection channel, a cyclone air duct and a pulverized coal air duct are arranged outside the oil injection channel in sequence, the cyclone air duct is formed by cyclone spiral channels with the same rotation direction, and in the cyclone channel, an eddy air duct is additionally formed between the cyclone air duct and the oil injection channel. Moreover, an outer axial flow air duct, the cyclone air duct and the eddy air duct are conical spiral channels, and the cyclone air duct and the eddy air duct are opposite in rotation direction. The eddy air duct is additionally arranged, so that the sprayed air flow is mixed more evenly, the rotation angle of the sprayed air flow is easier to change, the quantity of the sprayed air flow is changed, the shape of sprayed flames is adjusted better, the rotation direction the eddy air duct is opposite to that of the cyclone air duct, turbulence flow can be generated between the eddy air duct and pulverized coal and between the cyclone air duct and pulverized coal, and therefore disordered powder of a pulverized coal layer can be burned more sufficiently. Through the three conical spiral channels, the velocity and the volume of the sprayed air flow can be adjusted better, and the shape and size of the flames are easier to adjust.

Description

technical field [0001] The invention relates to the field of burners. Background technique [0002] In the traditional cement production process, most of the simple single-channel and double-channel pulverized coal burners are used. These types of burners are mostly black and long, and the combustion efficiency is low; after the 1980s and 1990s, three-channel and four-channel burners were successively developed. Channel pulverized coal burner, but there is still the problem that the air duct structure design makes the air supply not stable enough, the flame shape and temperature are not easy to control, and cannot be adjusted in real time according to changes in the production environment and process conditions, and cannot adapt to uneven coal quality. The expansion joint is mainly used to compensate the expansion and contraction deformation of the pipeline due to temperature changes, and is also used to compensate the length of the pipeline due to installation and adjustmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/02
Inventor 郭荣勋姜晓娟王付生宋万奎
Owner HENAN HUIJIN INTELLIGENT EQUIP
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