Method for measuring volatile components of coal and application

A method of determination and volatile content technology, which is applied in the direction of weighing, measuring devices, and analyzing materials by removing certain components, can solve the problems of slow cooling speed of the furnace, affecting measurement efficiency, and delaying the heating speed for a long time, etc., to achieve The effect of improving accuracy and improving efficiency

Inactive Publication Date: 2017-03-15
SHANDONG ELECTRIC POWER RES INST +1
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Problems solved by technology

The cooling rate of the furnace is very slow, and the heating rate will be de

Method used

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  • Method for measuring volatile components of coal and application

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Embodiment 1

[0046] A method for measuring the volatile content of coal, comprising the following steps:

[0047] Step (1): The test coal sample is crushed so that it completely passes through a 0.2mm standard sieve.

[0048] Step (2): Weigh 5g of the test coal sample, place the test coal sample in a drying oven at 105°C, and dry until the mass is constant.

[0049] Step (3): Weigh (1±0.01) g of the test coal sample from the test coal sample in step (2), spread it in a weighing bottle, heat and dry it, and measure the moisture content.

[0050] Step (4): Preheating the muffle furnace to 920°C.

[0051] Step (5): Weigh (1±0.01) g of the test coal sample from the test coal sample in step (2) and quickly put it into the crucible, and transfer it together with the crucible to the preheated muffle furnace for accurate Heat for 7 minutes, then return the muffle furnace to 905°C within 3 minutes, and heat at constant temperature for 4 minutes.

[0052] Step (6): After the heating is completed,...

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Abstract

The invention discloses a method for measuring volatile components of coal and an application. The method comprises the following steps: 1) breaking test coal and sieving; 2) weighing a coal sample of set mass, heating and drying to constant mass, and putting the dried coal sample in a dry environment; 3) weighing a moisture content measuring test coal sample of set mass from the coal sample dried in the step 2), heating and drying the moisture content measuring test coal sample, and measuring the moisture content; 4) weighing a volatile component content measuring test coal sample of set mass from the coal sample dried in the step 2), and performing a volatile component content measuring test to measure the weight loss of the coal sample, wherein the ratio of the mass of the moisture content measuring test coal sample and the volatile component content measuring test coal to the sampled mass of the coal sample in the step 2) is 1:(3-20); and 5) calculating the volatile components in the coal sample according to the weight loss and moisture content of the coal sample.

Description

technical field [0001] The invention belongs to the field of thermal power generation, in particular to a method for measuring volatile content of coal and its application. Background technique [0002] The volatile content of coal is closely related to the quality of coal; according to the volatile content, the characteristics of the coke block after the volatile content are measured, which provides a reference basis for the preliminary decision on the processing and utilization of coal; in the process of coal blending and coking , it is necessary to use volatile matter to determine the proportion of coal blending; to estimate the yield of coke, gas and tar according to volatile matter; volatile matter also plays an important role in gasification and liquefaction processes, and can provide Good for reference purposes; volatiles also play an important role in calculating calorific value and hydrocarbon content. The determination of volatile matter is an important detection ...

Claims

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Application Information

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IPC IPC(8): G01N5/04
CPCG01N5/04G01N5/045
Inventor 王超冷述博刘颖琳王东路于磊李莉
Owner SHANDONG ELECTRIC POWER RES INST
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