Continuous slagging and pressure relief device for pressurized gasifier

A technology of pressurized gasification and pressure relief device, applied in the direction of granular/powder fuel gasification, etc., can solve the problems of waste of resources and energy, high operating costs, complex structure, etc., to protect the environment, improve work efficiency, change Effects of working environment

Inactive Publication Date: 2011-12-28
SHENGHUO TECH HENAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention solves the problems of water pollution, water waste, resource and energy waste caused by the traditional water slag quenching technology
It solves the problems of complex structure, large investment and high operating cost of traditional dry slag discharge device

Method used

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  • Continuous slagging and pressure relief device for pressurized gasifier
  • Continuous slagging and pressure relief device for pressurized gasifier

Examples

Experimental program
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Embodiment Construction

[0024] 1. As attached figure 1 As shown, before the gasifier 1 works, first ensure that all valves are in the closed state. The gasifier 1 starts to work, and the upper flap valve 4 is opened. After a certain time delay, the upper flap valve 3 is opened, and the slag starts to flow from the gasifier 1 falls into the slag discharge tank 2, and the material level gauge 5 starts to work at the same time, when the slag in the slag discharge tank 2 reaches the height set by the material level gauge 5, the upper flap valve 3 is automatically closed, and then the upper flap valve 4 is closed .

[0025] 2. Then open the pressure relief valve 8, harmful gas and powder enter the pressure relief and dust removal unit, initially remove the toxic gas in the slag discharge tank, then open the purge valve 7, fill the flue gas, and discharge the residual toxic gas in the slag, Part of the discharged dust lands at the ash hopper 9, and the ash hopper 9 collects it, and the rest of the dus...

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Abstract

A continuous slagging and pressure relief device for a pressurized gasifier, including a continuous feeding unit, a pressure relief and dust removal unit: the continuous feeding tank is connected to a hopper with a valve, and the pressure relief is connected to the pipeline with a pneumatic valve Dust extraction unit connection. The high-temperature slag enters the continuous feeding unit from the gasifier. The continuous feeding unit is composed of three discontinuous and concentric slag discharge tanks connected in parallel, and the working hours are connected end to end to realize continuous feeding. When the slag reaches the limited height, the double-layer valves on the slag discharge tank are closed successively, the pressure relief valve is opened, and harmful gas and dust enter the pressure relief and dust removal unit. Purge valve and pressure relief valve, the valve at the bottom of the tank is opened, and the high temperature slag is discharged for further treatment. The equipment has a simple structure and low cost, and realizes continuous discharging while ensuring the pressure stability of the gasifier.

Description

technical field [0001] The invention relates to a continuous slagging and pressure relief device for a pressurized gasification furnace, which belongs to the technical field of dry slagging equipment. Background technique [0002] The smooth discharge of high-temperature pulverized coal gasification furnace bottom slag under pressurized conditions is a very critical link in the gasification process of pulverized coal pressurized dense phase transportation. The gas velocity can reach 8-17 m / s, and the circulation rate is as high as 5O-100, and the solid flux is greater than 20 kg / m .s, [0003] At present, during the working process of the gasifier, the temperature of the discharged high-temperature slag is above 800 degrees. The cooling of the high-temperature slag is currently mainly done by dropping the high-temperature slag into water. The water has a certain height and becomes the medium for sealing the gas in the water seal. The extinguishing of the high-temperature sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/52
Inventor 李志鹏
Owner SHENGHUO TECH HENAN
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