Pulverized coal combustion performance detection method and device

A pulverized coal combustion and detection device technology, which is applied in the direction of chemical analysis using combustion, can solve the problems of oxygen pulverized coal combustion process transformation and result influence, etc.

Inactive Publication Date: 2021-01-08
湖北赤焰热能工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pulverized coal combustion performance detection method and its device, which solves the problem that it is difficult for pulverized coal to imitate the oxygen and wind force required for combustion in the process of external use during the static test. Due to the complex process of physical and chemical reactions, during the test, the combustion process of pulverized coal may be changed due to the lack of oxygen in the test container or the change of the wind force, which may have a great impact on the test results.

Method used

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  • Pulverized coal combustion performance detection method and device
  • Pulverized coal combustion performance detection method and device
  • Pulverized coal combustion performance detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: When the pulverized coal burns in the test container 1, the staff can check the oxygen content and pressure value in the test container 1 through the control panel 8, and when the oxygen content in the test container 1 is too low, the staff will The oxygenation device 2 can be started, and the oxygen in the oxygen tank 3 can be filled into the test container 1 through the oxygenation device 2, so as to reduce the oxygen concentration in the test container 1. When the oxygen concentration in the test container 1 is greater than 40%, and the test When the pressure inside the container 1 is greater than 150kPa, the test container 1 is prone to rupture.

Embodiment 2

[0039] Embodiment 2: When the pulverized coal burns in the test container 1, the staff can check the oxygen content and pressure value in the test container 1 through the control panel 8, and when the oxygen content in the test container 1 is too low, the staff will The oxygenation device 2 can be started, and the oxygen in the oxygen tank 3 can be filled into the test container 1 through the oxygenation device 2, so as to reduce the oxygen concentration in the test container 1. When the oxygen concentration in the test container 1 is less than 10%, and the test When the pressure in the container 1 is less than 60kPa, the pulverized coal in the test container 1 is difficult to ignite.

[0040] Draw the following table according to embodiment 1-2:

[0041] oxygen concentration pressure Affect the burning effect Example 1 ≥40％ ≥150kPa container breaks easily Example 2 ≤10％ ≤60kPa Pulverized coal is difficult to ignite

[0042] From the co...

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Abstract

The invention discloses a pulverized coal combustion performance detection method and device, and and belongs to the technical field of pulverized coal combustion. The pulverized coal combustion performance detection device comprises a test container, the left side surface of the test container is fixedly connected with the right side surface of oxygenating equipment, an air inlet of the oxygenating equipment is clamped with an oxygen tank, and the lower surface of the oxygen tank is in lap joint with the inner wall of a support plate. According to the pulverized coal combustion performance detection method and device, oxygen supply equipment, a sealing ring and an observation window are arranged, so that the detection device can conveniently maintain the air pressure and the oxygen concentration content in the test container during detection, the oxygen concentration and the air pressure in the test container can be maintained at the level close to the outside oxygen concentration andthe air pressure, the combustion of pulverized coal in the test container can be comprehensively simulated to be nearly the same as the combustion of the pulverized coal combusted outside, the accuracy of the detection device in the pulverized coal combustion use detection process is greatly improved, and the test container cannot easily influence the combustion effect of the pulverized coal.

Description

technical field [0001] The invention belongs to the technical field of pulverized coal combustion, and specifically relates to a method and a device for detecting the combustion performance of pulverized coal. Background technique [0002] Blast furnace pulverized coal injection is one of the key technologies to realize the optimization of blast furnace ironmaking process. It is currently the most effective means of coke reduction in the world. It has significant economic and social benefits, greatly improves the effect of blast furnace coal injection, and replaces the price Expensive metallurgical coke is an important measure to save energy, reduce consumption and enhance competitiveness of blast furnaces. The key to increasing the coal ratio is to increase the utilization rate of pulverized coal, so that pulverized coal injection can be effectively utilized in the blast furnace. The combustion performance of pulverized coal is very important to improve the utilization rate...

Claims

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Application Information

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IPC IPC(8): G01N31/12
CPCG01N31/12
Inventor 王春明樊春梅
Owner 湖北赤焰热能工程有限公司
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