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Ash sintering atmosphere furnace capable of automatically moving forwards and backwards and conducting online monitoring and operation method thereof

A sintering atmosphere and automatic technology, applied in the field of ash sintering, can solve the problem of sintering without simulated boiler water wall

Active Publication Date: 2014-05-21
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sintering furnaces on the market only sinter directly in the furnace, and do not simulate the sintering on the water wall of the boiler or the sintering on the heat exchanger in the gasifier. For example, the Chinese patent document with publication number 203177638U provides an atmosphere Adjustable double temperature control composite ceramsite sintering rotary furnace

Method used

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  • Ash sintering atmosphere furnace capable of automatically moving forwards and backwards and conducting online monitoring and operation method thereof
  • Ash sintering atmosphere furnace capable of automatically moving forwards and backwards and conducting online monitoring and operation method thereof
  • Ash sintering atmosphere furnace capable of automatically moving forwards and backwards and conducting online monitoring and operation method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, an ash sintering atmosphere furnace with automatic advance and retreat and online monitoring includes a sintering probe, a CCD camera system, an automatic advance and retreat device and an atmosphere adjustment system.

[0034] The sintered probe consists of a sintered probe head 1 and a sintered probe rod 2. The sintered probe head 1 is threaded on the end of the sintered probe rod 2, and the sintered probe rod 2 is provided with a heat transfer oil inlet 4 and a heat transfer oil The outlet 3 leads to the double-layer annular heat transfer oil channel in the sintering probe rod 2 respectively; during sintering, the temperature of the heat transfer oil at the heat transfer oil inlet 4 is controlled by the oil circulation temperature controller, and the sintering probe rod is provided with a flange Sheet 5 to realize the connection and sealing with the sintering atmosphere furnace 11.

[0035] Such as figure 2 As shown, the sintering probe ...

Embodiment 2

[0041] Use the automatic advance and retreat of embodiment 1 and the ash sintering atmosphere furnace of on-line monitoring, utilize the ash block that Zhundong coal ash is pressed into (such as figure 2 ), the specific working method is as follows:

[0042] (1) Open the cooling water inlet 18 and cooling water outlet 17 of the CCD camera system to ensure that enough cooling water flows through the CCD camera system;

[0043] (2) Start the oil circulation temperature controller to heat the heat transfer oil to the predetermined temperature in the predetermined temperature range of 200-300°C;

[0044] (3) Start the sintering atmosphere furnace 11, and set the sintering temperature of the sintering furnace through the automatic temperature controller of the sintering atmosphere furnace;

[0045](4) Start the gas electronic flow meter 24, and set the flow rate of each gas, then open the valve of the gas cylinder, and adjust the pressure reducing valve 23 at the same time, so th...

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Abstract

The invention discloses an ash sintering atmosphere furnace capable of automatically moving forwards and backwards and conducting online monitoring. The ash sintering atmosphere furnace comprises a sintering probe stretching into a furnace hearth. The sintering probe comprises a sintering probe head and a sintering probe rod; the sintering probe rod penetrates through the furnace wall and stretches into the furnace hearth, a double-layer annular heat conduction oil channel is formed in the furnace hearth, and a heat conduction oil inlet and a heat conduction oil outlet which are communicated with the double-layer annular heat conduction oil channel are formed in the furnace hearth; the sintering probe head is arranged at the end of the sintering probe rod in the furnace hearth in a threaded matched mode, a cavity communicated with the double-layer heat conduction oil channel is formed in the sintering probe head, a platform for holding sintered ash samples is arranged on the side surface, a first temperature measuring element and a second temperature measuring element are placed in the wall below the platform and used for measuring the temperature of the inner wall in the sintering probe head and the temperature of the outer wall of the sintering probe head; the ash sintering atmosphere furnace further comprises a CCD picture shooting system for monitoring the sintering morphological characteristics of the ash in real time and the CCD picture shooting system is arranged at the other side, corresponding to the sintering probe, of the furnace hearth. The invention further discloses an operation method of the ash sintering atmosphere furnace capable of automatically moving forwards and backwards and conducting online monitoring.

Description

technical field [0001] The invention relates to the technical field of ash sintering, in particular to an ash sintering atmosphere furnace with automatic advance and retreat and online monitoring and its working method. Background technique [0002] Since my country is a country with more coal and less oil, the source of fossil fuels for industrial applications is mainly coal. However, the problem of ash deposition and slagging in pulverized coal boilers has been plagued by coal-fired power plants, so the study of the sintering characteristics of coal ash will play an important role in how to reduce the ash deposition and slagging in pulverized coal boilers. Especially in recent years, the problem of PM2.5 emission from pulverized coal boilers continues to heat up, and pulverized coal gasification will become another trend of pulverized coal utilization in the future. However, the problem of slagging in pulverized coal gasifier is an important factor hindering the populariz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D21/00F27B17/00F27D19/00F27D7/06
Inventor 周昊周斌王建阳岑可法
Owner ZHEJIANG UNIV