Slag discharging equipment and slag discharging method for solid slag discharging gasification furnace
A technology of solid-state slag discharge and slag discharge equipment, which is applied in the field of coal gasification and can solve the problems of continuous slag discharge and low efficiency of ash locks
Inactive Publication Date: 2017-06-13
DATANG INT CHEM TECH RESINST
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Problems solved by technology
In addition, the gray lock cannot achieve continuous slag discharge, and the efficiency is low
Method used
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[0019] Referring now to the accompanying drawings, the schematic scheme of the slagging equipment of the solid-state slagging gasifier disclosed in the present invention will be described in detail. Certain directional terms used hereinafter to describe the drawings, such as "inner," "outer," "left," "right," "upward," "downward," and other directional terms, are to be understood as has its normal meaning and refers to those directions in which the drawings are normally viewed. Unless otherwise specified, the directional terms described in this specification basically follow the conventional directions understood by those skilled in the art.
[0020] The term "about" or "approximately" in the present invention will be understood by those of ordinary skill in the art and will vary within a certain range depending on the context in which the term is used.
[0021] The terms "first", "second" and similar terms used in the present invention do not indicate any order, quantity or ...
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The invention provides slag discharging equipment and a slag discharging method for a solid slag discharging gasification furnace. The gasification furnace is provided with a slag discharging opening; the slag discharging equipment comprises a variable-pressure collection part, a first on-off valve and a normal-pressure collection part; the variable-pressure collection part comprises an inlet and an outlet which are communicated with the slag discharging opening through pipelines; the variable-pressure collection part has a first pressure state corresponding to the pressure of the slag discharging opening and a second pressure state at normal pressure; the first on-off valve is mounted on the pipeline between the slag discharging opening of the gasification furnace and the inlet of the variable-pressure collection part; the normal-pressure collection part comprises an inlet and an outlet which are selectively communicated with or separated from the outlet of the variable-pressure collection part. According to the slag discharging equipment, wear of a valve can be reduced, occupation of the inner space of a slag discharging container is avoided, and the slag discharging efficiency is improved.
Description
technical field [0001] The invention relates to the field of coal gasification, in particular to a slagging device and a slagging method for a solid-state slagging gasifier. Background technique [0002] The ash lock, also known as the ash tank, is directly connected to the bottom flange of the gasifier, and regularly collects the ash stored in the gasifier by controlling the pressure filling and pressure relief cycle, and the collected ash is passed through the falling The ash pipe discharges to the hydraulic ash removal system. The upper and lower valves of the ash lock are important components for controlling the pressure change of the ash lock and connecting the ash lock to the gasifier. At present, the upper and lower valves of the gray lock adopt cone valves, including the upper valve stem, lower valve stem, valve stem guide system (including guide sleeve and guide ring), transmission system (internal rocker arm) located in the inner cavity of the gray lock. , valve ...
Claims
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Login to View More IPC IPC(8): C10J3/72
CPCC10J3/72C10J2200/09
Inventor 李春启赵瑞同梅长松康善娇刘卫兵
Owner DATANG INT CHEM TECH RESINST