Entrained flow gasifier device with four forward and reverse rotating burners and gasification method

Abstract

The invention relates to an entrained flow gasifier device and a gasification method utilizing the device, particularly to an entrained flow gasifier device with four forward and reverse rotating burners and a gasification method, and aims to solve the problems of gasifier water-cooled wall burning loss, low carbon conversion rate and the like caused by unreasonable burner arrangement mode of existing multi-burner entrained flow gasifiers. The entrained flow gasifier device with four forward and reverse rotating burners includes a gasifier body, burners, a water-cooled wall, an igniter burner,a slag tank and a synthesis gas channel. The four burners, i.e. burner B1, burner B2, burner B3 and burner B4 are located on a same horizontal plane, and are evenly distributed along the circumference of the gasifier body in order, the intersection points of center lines and the water-cooled wall surface are C1, C2, C3, and C4 respectively, the center lines of B1 and B2 intersect at point O, andthe center lines of B3 and B4 intersect at point O'; the included angle alpha of C1O and C1C3, and the included angle beta of C2O and C2C4 satisfy that: alpha is greater than 0 and smaller than beta and beta is less than 45 degrees, or beta is greater than 0 and smaller than alpha and alpha is less than 45 degrees. The entrained flow gasifier device provided by the invention is used for the entrained flow gasification field.

Description

technical field [0001] The invention relates to an entrained bed gasification furnace device and a gasification method using the device. Background technique [0002] my country is a big coal country with abundant coal reserves, which is the basic energy and important raw material for our country. The direct combustion of coal is the main way of utilization, which will produce serious pollution. Coal gasification technology is one of the core technologies for clean coal utilization, which contributes to environmental protection and sustainable development. Coal gasification technology is mainly divided into three types: fixed bed gasification, fluidized bed gasification and entrained bed gasification. Entrained bed gasification technology has become the main development direction of coal gasification technology because of its advantages such as wide application of coal types, high carbon conversion rate, large processing capacity, and low environmental pollution. There ar...

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Problems solved by technology

[0004] The present invention aims to solve the problem of unreasonable arrangement of burners in the existing multi-burner entrained-bed gasification furnace, which leads to burning of the water wall of the gasification furnace and low carbon conversion rate, etc., and provides a four-burner entrained entrained bed with forward and reverse rotation Gasifier device and gasification method

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