Online moisture meter

Abstract

The invention discloses an online moisture meter which comprises a box body, a measurement system, a sampling system, a discarding system and a transfer system. The measurement system is arranged in the box body. The measurement system comprises an openable and closable casing. The sampling system comprises a hopper and a pipe shunt sampling device. The pipe shunt sampling device draws a coal sample from a main conveying pipe and places the coal sample in the hopper. The discarding system comprises a suction cup, a first discarding pipe and a first negative pressure device. The suction cup isconnected with the negative pressure device through the discarding pipe. The suction cup is arranged in the box body. The transfer system comprises a gripper, a lifting device and a rotating device. The transfer system drives a sample pan to move between a measurement position, a sampling position and a discarding position. The online moisture meter can realize real-time online sampling, carry outmeasurement in situ without the need to transfer the coal sample to other places, and can realize real-time rapid measurement of moisture in coal to guide coal blending and combustion in real time. The washing process of the existing technical scheme is optimized. The combustion efficiency of a boiler is improved. The safety coefficient of the boiler is improved.

Description

Technical field [0001] The invention relates to the technical field of coal quality analysis equipment, in particular to an online moisture meter. Background technique [0002] The online elemental analysis system of coal quality is widely used in the on-line coal detection of power plants, the online mixed coal detection of coal washing and preparation of coal mines, and the analysis of coal ash melting properties of coal chemical industry. Coal quality online element analysis technology uses XRF fluorescence technology to quickly and accurately detect the content of main elements such as S, Si, Fe, Al, Ca, Ti, and K in coal, but it cannot determine the moisture content in coal. Although the existing moisture meter can The moisture content in coal is determined, but it cannot be analyzed online. After sampling, the coal sample can only be sent to the laboratory for testing. It often takes 2-4 hours from sample preparation to obtaining the result, which cannot meet the requiremen...

AI Technical Summary

Problems solved by technology

Coal quality on-line elemental analysis technology quickly and accurately detects the content of main elements such as S, Si, Fe, Al, Ca, Ti, K in coal through XRF fluorescence technology, but cannot measure the moisture content in coal. Although the existing moisture meter can Determining the moisture content in coal, but it cannot be analyzed online. The coal sample can only be taken and sent to the laboratory for testing. It usually takes 2-4 hours from sample preparation to the result, which cannot meet the requirements of the coal quality online element analysis system. The requirement of fast online determination of moisture in coal cannot reflect the current moisture content in coal accurately and in real time

Images