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Test method used for detecting coking coal

A test method and technology of coking coal, which is applied in the direction of fuel oil testing and material inspection products, to achieve the effects of low energy consumption, prevention of excessive moisture, and high test efficiency

Inactive Publication Date: 2012-07-25
武钢集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing test methods for testing coking coal, the test coke oven is necessary test equipment, and the test coke oven equipment is huge, the consumption of personnel is large, and the equipment investment is large , high energy consumption, unable to meet the needs of rapid and changeable laboratory research work, therefore, the existing test methods for detecting coking coal are inefficient

Method used

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  • Test method used for detecting coking coal
  • Test method used for detecting coking coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Main equipment and requirements:

[0032] Colloidal layer index tester: commonly used coal quality testing equipment.

[0033] Corundum crucible: inner diameter 80mm; height not less than 40mm.

[0034] Muffle furnace: the maximum constant temperature is not lower than 1200°C.

[0035] The test method has the following steps:

[0036] (1), coal is burned into the step of semi-coke coke cake with colloidal layer index measuring instrument;

[0037] Within 30 minutes, heat up from room temperature to 250°C at a heating rate of about 8°C / min, and then uniformly heat up to 730°C at a heating rate of 3°C / min. The difference should not exceed 5°C, and the difference should not exceed 10°C at other times. Glial changes during recording.

[0038] (2), the step of detecting semi-coke coke cake;

[0039] Visually inspect the appearance of the semi-coke coke cake, use a ruler to measure the surface cracks and edges, and record the test data.

[0040] (3), burn semi-coke cok...

Embodiment 2

[0047] Main equipment and requirements are the same as embodiment 1.

[0048] The test method has the following steps:

[0049] (1), coal is burned into the step of semi-coke coke cake with colloidal layer measuring instrument;

[0050] (2), the step of detecting semi-coke coke cake;

[0051] (3), burn semi-coke coke cake into coke step with muffle furnace, specifically:

[0052] (3.1), take out the semi-coke coke cake from the coal cup after the colloidal layer measurement test; spread a 3-5cm thick inert material on the bottom of the corundum crucible—corundum sand (also can be other high-temperature resistant non-melting materials); Put the semi-coke coke cake into the corundum crucible, cover the semi-coke coke cake with coke powder and fill the corundum crucible, the thickness of the semi-coke coke cake covered with coke powder is 1-2cm.

[0053] (3.2), put the corundum crucible into the muffle furnace, close the muffle furnace door, isolate the air as much as possible...

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Abstract

The invention relates to a test method for detecting caking coal. The method comprises the following steps: (1). A coal is burned into a semi-coking cake by using a gelatinous layer measuring instrument; (2). the semi-coking cake is detected; (3). the semi-coking cake is burned into coke by a muffle; and (4). the coke is detected. In the invention, no coke oven test is needed, the coke is burned from the semi-coking cake necessary for the test instead of the coal. The method has low energy consumption, simple testing devices, low working staff consumption and small device investment, can satisfy the fast changing need of laboratory research and has high test efficiency.

Description

technical field [0001] The invention relates to a test method for laboratory coking and a test method for detecting coking coal. [0002] Background technique [0003] Test method for testing coking coal as the main method for evaluating coking properties of coking coal, selecting coal for coking and predicting coke quality. The test method used to detect coking coal generally includes: a test procedure used to detect semi-coke coke cake and a test procedure used to detect coke. [0004] At present, the test steps for detecting semi-coke coke cake include: 1. Coal is burned into a step of semi-coke coke cake with a colloidal layer index measuring instrument (see: National Standard GB / T479-2000, Bituminous Coal Colloidal Coal Layer Index Determination method); 2, the step of detecting the semi-burnt coke cake. The test steps for detecting coke include: 1. The step of burning coal into coke with a test coke oven; 2. The step of detecting coke. [0005] The existing test met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/22
Inventor 陈鹏项茹薛改凤宋子逵张前香刘尚超鲍俊芳张雪红
Owner 武钢集团有限公司
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