Anti-slag-blocking slag discharging opening structure for entrained-flow bed gasification furnace and arrangement method thereof

A technology of gasifier and entrained bed, which is applied in the field of slag opening structure and its arrangement for preventing slag clogging in entrained bed gasification furnace, which can solve problems such as production line outage, economic loss of enterprises, slag clogging, etc., and achieve slag temperature high effect

Active Publication Date: 2021-12-31
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention solves the problem of slag blockage in the lower slag port of the existing entrained-flow gasifier during the slagging process. Once the slag blockage occurs, the furnace can only be shut down to remove it, resulting in the

Method used

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  • Anti-slag-blocking slag discharging opening structure for entrained-flow bed gasification furnace and arrangement method thereof
  • Anti-slag-blocking slag discharging opening structure for entrained-flow bed gasification furnace and arrangement method thereof
  • Anti-slag-blocking slag discharging opening structure for entrained-flow bed gasification furnace and arrangement method thereof

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Embodiment

[0049] One adopts the traditional slag outlet, with a gas production capacity of 80,000Nm 3 / h gasifier, a slag blocking accident occurred during operation. Due to the slow judgment, the processing time was delayed, the slag outlet was completely blocked, and the furnace was forced to stop. Since the gasifier is the production source of chemical enterprises, the shutdown of the gasifier resulted in the shutdown of the entire production line. The gasifier was shut down for 8 days to remove slag in one year, and the economic loss of the entire coal gasification production line was more than 60 million yuan.

[0050] Also with a gas production capacity of 80000Nm 3 / h gasifier as an example, the structure of the lower slag port adopts the structure described in this application, and the specific structural parameters are as follows:

[0051] The gas production capacity is 80000Nm 3 / h The bottom of the gasifier is processed with a circular platform-shaped lower slag port 2, a...

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Abstract

The invention relates to an anti-slag-blocking slag discharging opening structure for an entrained-flow bed gasification furnace and an arrangement method thereof, belongs to the field of slag discharge of gasification furnaces, and aims to solve the problems that the slag discharging opening in the existing entrained-flow bed gasification furnace is often blocked in the slag discharge process, and once the slag is blocked, the slag can only be removed by blowing out the gasification furnace, thus the whole production line is completely stopped, and huge economic loss is caused to the enterprise. According to the anti-slag-blocking slag discharging opening structure for the entrained-flow bed gasification furnace and the arrangement method thereof, the slag discharging opening structure adopts a structural form of 'narrow inlet and wide outlet', and the position of the inlet end of the slag discharging opening is higher than the position of the inlet of a traditional slag discharging opening, the temperature of the liquid slag entering the slag discharging opening is higher, and is 80-100 DEG C higher than the temperature of the slag discharging opening in the initial slag falling position in the traditional form. Ash slag can be discharged in a liquid state through the high slag melting temperature, solid slag cannot be formed, and slag blockage of the slag discharging opening can be prevented.

Description

technical field [0001] The invention belongs to the field of gasification furnace slag removal, and in particular relates to an anti-blocking slag lower slag port structure and an arrangement method for an entrained bed gasification furnace. Background technique [0002] my country's primary energy reserves present the characteristics of "rich in coal, poor in oil, and low in gas", which determines that coal will occupy a dominant position in primary energy production and consumption, and coal always accounts for more than 50%. The use of direct combustion of coal will cause serious pollution to the atmospheric environment. Coal gasification technology is an efficient and clean clean coal technology. Coal gasification technology can be used to produce industrial fuel gas, civil fuel gas, chemical synthesis raw material gas, synthetic fuel oil raw material gas, hydrogen fuel cells, synthetic natural gas, rocket fuel, etc. At present, the main coal gasification technologies a...

Claims

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Application Information

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IPC IPC(8): C10J3/48C10J3/72
CPCC10J3/485C10J3/72
Inventor 张鸣镝路跃姜广飞李争起刘政陈智超
Owner HARBIN INST OF TECH
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