Gasification furnace and charge-in system

Abstract

The invention discloses a gasification furnace and a feeding system thereof; wherein the gasification furnace comprises a feeding combustor and a gasification furnace, the discharge port of the feeding combustor is communicated with the reaction zone of a gasification furnace core, the feeding port of the feeding combustor is communicated with the outside of the gasification furnace, and the feeding combustor respectively and sequentially passes through the wall of the gasification furnace, the heat insulating layer, the insulating layer and the high temperature resistance layer from the outside of the gasification furnace and finally reaches the reaction zone of the gasification furnace core; the system is characterized in that high temperature resistance material is wrapped around the feeding combustor and respectively and sequentially passes through the heat insulating layer to the insulating layer from the wall of the gasification furnace. The invention can effectively prevent intense mobility caused by instability and temperature variation during gasification, enhance the security of integrated operation and running period, and improve the gasification efficiency.

Description

Technical field [0001] The present invention relates to a gasification furnace and its feeding system, in particular to a high-temperature gasification furnace and its feeding system that convey pulverized coal and conveying gas through the combination of an application mechanism of different refractory materials and a feed burner. Background technique [0002] In recent years, as the world faces environmental and energy issues at the same time, governments and industries in various countries have attached great importance to the research and development of clean coal technology with high energy efficiency and low pollution. How to improve the efficiency of coal use and reduce coal pollution is the primary topic of the current development of clean coal technology. Among various coal purification technologies, the gasification technique has attracted the most attention. It can use various fuels such as coal, petroleum coke, biomass, and waste as feedstock, and produce syngas (syng...

AI Technical Summary

Problems solved by technology

[0006] Because coal gasification is generally carried out in a severe environment of high temperature and high pressure, it is necessary to be very careful in operation to avoid fusing due to external factors and internal fuel blockage at the outlet of the feed burner 26. Further, high-temperature tempering occurs. At this time, under the three conditions of fuel (coal), oxidant (oxygen) and high-temperature environment, the combustion reaction is directly carried out inside the feed burner 26, and the high temperature directly erodes the feed combustion. The relatively low-temperature-resistant insulation layer 22 or the refractory mud of the insulation layer 23 around the device 26 is quite difficult to detect because the fuel and oxidant are still continuously fed, and the furnace temperature does not change significantly. In the end, it may be that the gasifier wall 25 cannot withstand high temperatures, which pose a great danger

Therefore, the feeding system of the known gasifier still has deficiencies and needs to be improved.

Images