Distributor, distribution injection unit, gasifier, and synthesis gas production method and system

Abstract

The invention discloses a material distributor, a material distribution injection assembly, a gasification furnace, and a synthesis gas production method and system. The material distributor (1) includes an outer main pipe (12) and an inner main pipe (11), and the inner and outer main pipes correspond to It includes an inner feeding pipe (111), a plurality of inner feeding pipes (112), an outer feeding pipe (121) and a plurality of outer feeding pipes (122), and the inner feeding pipe extends into the corresponding outer feeding pipe to Form the distribution sleeve unit. The gasification raw material and the gasification agent can be independently transported and uniformly distributed in the two internal and external transport channels in the distributor in a fluidized state. The fluidized state in the material chamber can be maintained by blowing back the air, and the bottom does not produce sediment and prevent clogging. The upside-down zigzag design of the gasifier can increase the reaction time of the gasification raw materials, shorten the residence time of the gas, effectively improve the carbon conversion rate and reduce the investment cost of the gasifier. In the gasification process, the gasification residue after chilling and drying can absorb and filter the fly ash in the homogeneous crude synthesis gas, reducing the cost of filtration.

Description

technical field [0001] The invention relates to the field of gasification of carbon-containing fuels, in particular to a multi-nozzle gasification furnace device and a gasification process thereof. Background technique [0002] The principle of gasification of carbon-containing fuels is to transport carbon-containing fuels such as coal after being crushed and dried, and spray them into a high-temperature gasifier through a nozzle, and then produce a combustion reaction to produce syngas. Furthermore, more water vapor can be fed into the gasifier to generate water gas reaction and increase the output of synthesis gas. [0003] Researchers in this field are diligently seeking to improve the conveying device, material distribution mechanism, gasifier device and its related components, and process flow, etc., to prevent material feeding blockage, uneven material distribution, and insufficient gasification reaction, etc., so as to improve the low carbon conversion rate. , Reduce...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the above-mentioned defects or deficiencies in the prior art, the present invention provides a distributor, a material distribution injection assembly, a gasifier installed with the material distribution injection assembly, and a synthesis gas production method and system to effectively solve multiple The nozzles have problems such as uneven material distribution and material blocking, low carbon conversion rate, low gasification intensity, and high cost of fly ash filtration.

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