Novel cyclone atomizing device for pulverized-coal burner

An atomization device and pulverized coal technology, which are applied to burners, burners, combustion methods and other directions for burning powder fuels, can solve problems such as the inability to meet various process requirements, and achieve improved atomization effect, combustion efficiency, and stability. effect used

Inactive Publication Date: 2013-04-03
XIAN AEROSPACE YUANZHENG FLUID CONTROL
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AI Technical Summary

Problems solved by technology

The DC impingement type has the advantages of good atomization effect and simple processing and manufacturing, so it is widely used in the field of burners (burners). However, with the continuous emergence of various coal chemical processes in recent years, DC impact pulverized coal burners Can no longer meet the needs of various processes

Method used

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  • Novel cyclone atomizing device for pulverized-coal burner
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  • Novel cyclone atomizing device for pulverized-coal burner

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Embodiment Construction

[0017] A new type of pulverized coal burner swirling atomization device has two implementation modes, the first mode is as follows diagram 2-1 As shown, the spiral partition 3 is distributed between the outside of the oxygen pipe 1 and the inside of the pulverized coal pipe 2, so that several swirl structures are formed in the pulverized coal passage, so that the medium such as pulverized coal or oil flows along the spiral partition. The space channel defined by 3 rotates and flows at an angle A. Angle A is the angle formed between the spiral partition 3 and the center line of the burner body, and is between 10° and 80°. At the same time, the oxygen pipe 1 is equipped with an arc-shaped boss at the outlet, so that the pulverized coal channel at the outlet shrinks and becomes smaller, so as to increase the speed of pulverized coal or oil and other media after they are ejected from the burner body, so that the media can be more powerfully connected with oxygen. (Oxidant) etc. ...

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Abstract

The invention provides a novel cyclone atomizing device for a pulverized-coal burner. Spiral partition boards are distributed between the outer side of an oxygen tube of a burner body and the inner side of a coal dust tube, an included angle A between the spiral partition board and the central line of the burner body is within 10 degrees to 80 degrees, and an arc-shaped lug boss is arranged at an outlet of the oxygen tube. The novel cyclone atomizing device for the pulverized-coal burner is good in atomization effect and simple in processing and manufacturing, and can meet various process demands of the coal chemical industry.

Description

technical field [0001] The invention relates to a pulverized coal burner in coal gasification technology, in particular to a rotary atomization device for pulverized coal medium in the burner. Background technique [0002] Coal chemical industry refers to the process of using coal as raw material to convert the effective components in coal into gas, liquid or solid fuels and related chemicals through a series of devices and chemical processes. Coal gasification is one of the key technologies in the coal chemical industry, and pulverized coal burners are the core of coal gasification technology. [0003] There are two main forms of pulverized coal burner combustion in coal chemical industry: one is to process coal into powder, accompanied by a certain proportion of "fluidizing" gas (such as CO 2 or N 2 etc.), through the pulverized coal burner at a certain speed and direction into the combustion chamber (hearth) for combustion, it is a gas-solid two-phase medium. The secon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/02F23D17/00
Inventor 于晓亮陈杰刘小波
Owner XIAN AEROSPACE YUANZHENG FLUID CONTROL
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