Gasification furnace chilling chamber and gasification furnace

Abstract

The invention discloses a gasification furnace chilling chamber and a gasification furnace. An overflow weir is arranged on an outer edge of an air dispersion net of the gasification furnace chillingchamber; a foam breaking cylinder penetrating through a gas descending cylinder is arranged at the bottom of the gas descending cylinder; the foam breaking cylinder is positioned below the liquid level of the chilling chamber a; a multilayer cyclone guide piece is arranged in an annular cavity between the gas descending cylinder and the inner wall of the chilling chamber; the multilayer cyclone guide piece is arranged along a height direction of the chilling chamber; the cyclone guide piece is composed of a lower ring, an upper ring and a plurality of cyclone blades; the lower ring is arrangedon an outer wall of the gas descending cylinder in a sleeving manner; the upper ring is arranged on an inner wall of the chilling chamber in a sleeving manner; the plurality of cyclone blades are connected between the lower ring and the upper ring; a synthesis gas channel is formed between two adjacent cyclone blades; the gasification furnace comprises a combustion chamber and the gasification furnace chilling chamber. According to the gasification furnace chilling chamber disclosed by the invention, a phenomenon that synthesis gas entrains water and ash in the conventional gasification furnace chilling chamber can be effectively overcome, the gas descending cylinder can be cooled by water flowing along the outer wall of the gas descending cylinder, and the gas descending cylinder is prevented from being burnt.

Description

technical field [0001] The invention belongs to the technical field of entrained bed coal gasification, and in particular relates to a gasification furnace chill chamber and a gasification furnace. Background technique [0002] Coal is an important energy source. For a long time, the use of coal has been accompanied by serious environmental pollution. In recent years, people have paid more and more attention to clean coal technology aimed at reducing pollution emissions and improving utilization efficiency; coal gasification technology, as one of the coal processing and conversion technologies, is considered to be one of the most efficient and clean clean coal technologies. [0003] Modern coal gasification technology, especially high-pressure, large-capacity entrained-bed gasification technology has been widely used in industry. In our country, many manufacturers have introduced and used modern entrained bed gasification technology. Modern entrained bed gasification techno...

AI Technical Summary

Problems solved by technology

In our country, many manufacturers have introduced and used modern entrained bed gasification technology. Modern entrained bed gasification technology is mainly divided into coal water slurry gasification and pulverized coal gasification. Modern entrained bed gasification technology has the advantages of low environmental pollution and high degree of automation. advantages, but this technology has some common problems, which affect the normal operation of the gasification device to varying degrees

[0004] The invention patent with the application number 201210125775.2 discloses a gasification furnace quenching chamber, which includes a gas distribution cylinder, a downgas cylinder extending into the gas distribution cylinder, and an annular ring between the gas distribution cylinder and the downgas cylinder. The air diffuser in the space and the multiple annular baffles arranged staggered along the height direction of the quenching chamber are arranged horizontally. The disadvantages of the quenching chamber of the gasifier are: 1. With the continuous cooling and purification of the syngas, the quenching There is clogging or uneven distribution of water in the ring, which eventually causes the surface temperature of the downgas to rise, and even burns out the downgas; Many elongated bubbles, however, when the load of the gasifier is large or it is overloaded, the cooling and purification effect of the syngas is significantly reduced

Images