Real-time coal density measuring system and method

Abstract

The invention relates to a real-time coal density measuring system. The system comprises a weighing unit, a water supplementing unit, a sampler and a slagging off unit, wherein the weighing unit comprises a main weighing tank, an overflowing weighing tank, a main weighing sensor and an overflowing weighing sensor; the upper part of the main weighing tank communicates with the overflowing weighingtank; the main weighing sensor and the overflowing weighing sensor are correspondingly arranged at the lower parts of the main weighing tank and the overflowing weighing tank; the water supplementingunit and the sampler are arranged beside the main weighing tank and are correspondingly used for adding water and a coal sample to the main weighing tank; and the slagging off unit communicates with the bottom part of the main weighing tank and is used for draining the coal sample and water in the main weighing tank. The real-time coal density measuring system has the advantages of being real-timeto measure, convenient to measure, low in cost, and high in measuring accuracy. The invention also relates to a real-time coal density measuring method.

Description

technical field [0001] The invention relates to the technical field of coal chemical industry, in particular to a real-time measurement system and method for coal density. Background technique [0002] At present, most thermal power enterprises and coal enterprises use laser coal panners to take stock of coal samples. The automation level is relatively high, and the measured volume error is also small. However, there is no good equipment for direct measurement of coal density to obtain results. Generally, "large container measurement method" and "standard bucket method measurement" are adopted. [0003] "Large container measurement method" requires a container that can hold about 3 tons of coal samples, and then use a weighbridge to measure the weight, and measure the density of the coal sample according to its volume and weight. It needs to repeat the data many times and then take the average to determine the final result. , the measurement made in this way has disadvantag...

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Problems solved by technology

[0007] The coal density real-time measurement system of the present invention realizes automatic real-time measurement of coal density by setting a weighing unit, a water supply unit, a sampler and a slag discharge unit, and solves the difficulty in sampling, cumbersome measurement, high cost and manual labor of the existing coal density measurement method. Time-consuming, low measurement accuracy and large randomness of measurement data, etc., provide a low-cost and convenient and accurate measurement system for large coal-consuming units such as thermal power plants and heating enterprises, so that enterprises can grasp the real-time density of fuel coal , so as to understand the calorific value of the corresponding coal type in real time, which is helpful to reasonably control the amount of coal input, save energy, and rationally plan resources

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