Pipeline device for slag lock hopper and coal water slurry gasification slag removal system

Abstract

The invention discloses a pipeline device for a slag lock hopper and a coal water slurry gasification slag removal system and belongs to the field of coal water slurry gasification project equipment.The pipeline device comprises the slag lock hopper, a first vertical pipe section communicating with a slag inlet of the slag lock hopper, a second vertical pipe section communicating with a slag outlet of the slag lock hopper, a horizontal pipe section communicating with a water inlet of the slag lock hopper as well as a third vertical pipe section communicating with the horizontal pipe section;the first vertical pipe section is provided with a first adjusting valve, a first spring hanger and a second adjusting valve; the second vertical pipe section is provided with a third adjusting valve,a first guiding frame and a first metal corrugated pipe expansion joint; the horizontal pipe section is provided with a second metal corrugated pipe expansion joint, a spring support and a fourth adjusting valve; and the third vertical pipe section is provided with a second guiding frame, a second spring hanger and a third guiding frame. The coal water slurry gasification slag removal system comprises the pipeline device for the slag lock hopper. The problem of fatigue damage caused by the alternating stress and strain on equipment pipe openings, supporting seats and connecting pipelines dueto periodic cyclic change of the slag removal system is solved, and the safety and the stability of the slag removal system during operation are guaranteed.

Description

technical field [0001] The invention relates to the field of coal-water slurry gasification project equipment, in particular to a slag lock bucket pipeline device and a coal-water slurry gasification slag discharge system. Background technique [0002] The slag lock hopper is an important part of the coal-water slurry gasification slag discharge system, and it is also one of the key equipment that affects the continuous and stable operation of the coal gasification plant, and plays a very important role in the long-term operation of the entire plant. Its purpose is mainly to receive the slag discharged from the gasifier, enter the slag locker after being broken by the slag breaker, and discharge it from the system. Washing, slag discharge and other steps to complete the slag discharge work. [0003] Due to the cyclical changes in temperature and pressure during periodic slag collection and slag discharge, alternating stress and strain will be generated on the equipment nozz...

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Problems solved by technology

[0003] Due to the cyclical changes in temperature and pressure during periodic slag collection and slag discharge, alternating stress and strain will be generated on the equipment nozzle, equipment support and connected pipelines. If the design does not consider the characteristics of its intermittent operation, long-term operation Fatigue failure may occur during the time, resulting in equipment instability, pipeline rupture, device shutdown or even accidents

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