Pulverized coal furnace tiny-oil ignition combustion method

A technology of micro-oil ignition and combustion method, which is applied in the direction of combustion method, burner, combustion ignition, etc., which can solve the problems of inability to ignite with less oil in the flame cyclone, dense and dilute phase pulverized coal burner, etc., and achieve the adaptability of a wide range of coal types , simple system structure and high reliability

Inactive Publication Date: 2010-06-23
郑平安
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Problems solved by technology

[0007] The invention provides a micro-oil ignition combustion method for a pulverized coal furnace, which mainly solves the problem that the existing ignition method cannot be applied to a W flame cyclone dense-dilute phase pulverized coal burner for low-oil ignition

Method used

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  • Pulverized coal furnace tiny-oil ignition combustion method
  • Pulverized coal furnace tiny-oil ignition combustion method

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Embodiment Construction

[0031] The present invention is described in detail below in conjunction with accompanying drawing, as figure 1 Shown:

[0032] 1] Lead the pulverized coal airflow conveyed by the main pulverized coal pipeline 1 into the micro-oil ignition combustion device arranged in the first auxiliary pulverized coal pipeline 3 to perform micro-oil ignition;

[0033] 1.1] The pulverized coal airflow passes through the main pulverized coal pipeline 1 to the switching door 2. The switching door 2 opens the side passage of the first auxiliary pulverized coal pipeline 3, and closes the side passage of the second auxiliary pulverized coal pipeline 4. The pulverized coal airflow from the main pulverized coal pipeline 1 is sent into the first secondary pulverized coal pipeline 3, and a micro-oil ignition device 5 is arranged in the first secondary pulverized coal pipeline 3, and the micro-oil igniter 5 can be connected with the first secondary pulverized coal pipeline. Pipeline 3 coaxial setting...

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Abstract

The invention provides a pulverized coal furnace tiny-oil ignition combustion method which mainly solves the problem that the existing ignition method can not be applied to less oil ignition of a W-flame cyclone rich-thin pulverized coal burner. The pulverized coal furnace micro-oil ignition combustion method comprises the following steps: 1) leading pulverized coal in a main pulverized coal pipeline into a micro-oil ignition device arranged in a first secondary pulverized coal pipeline for ignition; and 2) after ignition is finished, switching a change-over valve on the main pulverized coal pipeline, and sending the pulverized coal air current into a secondary pulverized coal pipeline. The method has wide coal kind adaptability, low operating cost, low energy consumption and high reliability and is favorable for environment protection.

Description

technical field [0001] The invention relates to a micro-oil ignition combustion method for a pulverized coal furnace, in particular to a method for igniting a dense-dilute phase pulverized coal burner using a W flame cyclone, which is mainly used for cold furnace ignition of a pulverized coal furnace in thermal power generation. Background technique [0002] At present, the cold furnace ignition of pulverized coal furnaces in thermal power generation generally adopts large-scale oil combustion devices installed in the secondary tuyere. After a few hours, all parts of the furnace reach a high temperature and then the powder is burned, and the oil is gradually withdrawn according to the regulations after mixing and burning to a considerable load. Therefore, the fuel consumption of the cold furnace is quite large when it is ignited and started. [0003] my country is a country rich in coal resources but relatively scarce in oil and natural gas resources. Although my country has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/00F23Q9/00
Inventor 郑平安
Owner 郑平安
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