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Cyclone furnace and method for improving slag captured rate of cyclone furnace

The technology of a vortex furnace and a cyclone can be applied to the combustion method, the combustion of various fuels, the combustion of lump fuel and liquid fuel, etc., to achieve the effect of improving the slag capture rate and the slag capture rate.

Inactive Publication Date: 2015-12-02
YANTAI LONGYUAN POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it also uses reflux to increase the slag collection rate, however, it requires a high temperature of 1500-2000 ° C and a reducing atmosphere and classification treatment

Method used

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  • Cyclone furnace and method for improving slag captured rate of cyclone furnace
  • Cyclone furnace and method for improving slag captured rate of cyclone furnace

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 and 2 As shown, the vortex furnace includes: the vortex furnace cyclone tube 2 and the central tube 1 added inside the vortex furnace cyclone tube, and the slag pool 3 is arranged at the lower part of the vortex furnace cyclone tube.

[0032] The upper part of the vortex furnace cyclone 2 is provided with a tangential first air inlet and a second air inlet, and the first air inlet and the second air inlet are arranged on both sides of the vortex furnace cyclone and arranged at intervals.

[0033] Wherein, the first air inlet is used for feeding primary air carrying fuel, and the second air inlet is used for feeding combustion-supporting secondary air.

Embodiment 2

[0035] The method for improving the slag collection rate of the vortex furnace by adopting the vortex furnace of embodiment 1 specifically comprises the following steps:

[0036] The primary air 6 carrying fuel is arranged tangentially on both sides of the vortex furnace cyclone 2, and the combustion-supporting secondary air 7 is also tangentially arranged on both sides of the vortex furnace cyclone 2, the primary air 6 carrying fuel and the combustion-supporting secondary air 7 Arranged at intervals, the fuel-carrying primary air 6 and the combustion-supporting secondary air 7 burn in the vortex furnace cyclone 2 to produce high-temperature flue gas 4 carrying liquid slag, and the high-temperature flue gas 4 carrying liquid slag runs along the direction of the vortex furnace cyclone 2. The inner wall rotates and flows from top to bottom to the bottom of the cyclone tube 2 of the vortex furnace. At the bottom of the cyclone tube 2 of the vortex furnace, the liquid slag is disch...

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Abstract

The invention relates to a cyclone furnace and a method for improving the slag captured rate of the cyclone furnace. The cyclone furnace comprises a cyclone furnace cyclone cylinder (2) and a central cylinder (1) additionally arranged inside the cyclone furnace cyclone cylinder (2). The method for improving the slag captured rate of the cyclone furnace comprises the steps that the cyclone furnace is adopted, after fuels are combusted in the cyclone furnace cyclone cylinder, and generated high-temperature flue gas carrying liquid slags rotates along the inner wall of the cyclone furnace cyclone cylinder and flows from top to bottom; the liquid slags are discharged through a solidified slag pool; the high-temperature flue gas returns into the cyclone furnace cyclone cylinder when flowing to the lower portion of the cyclone furnace cyclone cylinder, then flow from bottom top top from the central position of the cyclone furnace cyclone cylinder and is exhausted from the interior of the central cylinder. By adopting the cyclone furnace, the flow track of slag films can be changed, and the slag captured rate of the cyclone furnace can be improved substantially.

Description

technical field [0001] The invention relates to the technical field of pulverized coal combustion, in particular to a vortex furnace and a method for improving the slag collection rate of the vortex furnace. Background technique [0002] The vortex furnace is a new type of furnace developed on the basis of the cyclone furnace technology. It is mainly used for the extraction of metal elements, such as extracting germanium and gallium from coal, extracting zinc from waste, etc., and has broad application prospects. Different from the cyclone furnace, the powder feeding method of the vortex furnace relies on the gravity of the raw material as the power, and sends it into the furnace from the top of the pre-chamber of the vortex furnace without primary air. [0003] Like the cyclone furnace, the vortex furnace is also a liquid slagging boiler, and an important factor affecting the production index of the liquid slagging boiler is the slag collection rate of the boiler. The vorte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C5/32F23C7/02
Inventor 褚晓亮杨天亮张玉斌葛茂杰张勇付玉玲王伟
Owner YANTAI LONGYUAN POWER TECH
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