Ring-type impact gasifier

Abstract

The invention discloses a ring-type impact gasifier. The ring-type impact gasifier comprises a furnace body internally provided with a gasification chamber (2), a gasification raw material nozzle (1) is formed in the top cover part of the furnace body to spray a ring-shaped gasification raw material fluid, multiple gasifying agent nozzles (222) distributed along the circumferential direction at intervals are formed in the inner circumferential wall of the gasification wall, a gasifying agent fluid sprayed by the gasifying agent nozzles and the gasification raw material fluid impact each other in the gasification chamber, and further combustion and gasification reactions are carried out. A single-fluid passage (11) used for enabling a gasification raw material to pass through can be formed in the gasification raw material nozzle, the circumferential wall of the furnace body around the gasification chamber can comprises an insulating layer (23), a gasifying agent circular layer (22) and a water cooling wall (21) from outside to inside, and a gasifying agent delivery pipe is arranged in the gasifying agent circular layer. The ring-type impact gasifier disclosed by the invention is applicable to large-scale carbonaceous material gasification treatment, independent mounting of two types of nozzles and impact type gas-solid mixing are adopted, temperature distribution in the gasifier can be optimized, gas-solid mixing is strengthened, the fuel utilization rate is improved, and the service lives of the nozzles and the gasifier can be prolonged.

Description

technical field [0001] The invention relates to the field of carbonaceous material gasification, in particular to a gasification furnace device. Background technique [0002] In recent years, great progress has been made in the development and application of coal gasification technology at home and abroad. According to the current situation and development trend of coal gasification technologies such as fixed bed, fluidized bed, entrained flow bed and coal catalytic gasification, and compared the main coal gasification technologies at home and abroad, the hot spots in the current coal chemical technology and industrial development are discussed , such as energy efficient conversion and reasonable recovery methods, coal type adaptability, large-scale, device reliability, sewage treatment, technology integration, and industrial policies, etc. After analysis and discussion, industry experts mostly believe that high-pressure, large-capacity entrained bed gasification The techno...

AI Technical Summary

Problems solved by technology

This patent document does not change the structure of the gasification furnace itself. The gasification injector adopts the method of graded material distribution and spraying. Although the gas-solid mixing can be strengthened, because the diameter of the gasification raw material transportation pipe is getting smaller and smaller, it is easy to cause transportation blockage, and processing Difficult; multiple injection tubes are integrated on the injection panel in the form of coaxial jets, which will cause extremely high temperature of the injection panel, and the panel is easy to burn out

Images