Equipment for full-automatic mechanical sampling and rapid online ash measurement

Abstract

The invention discloses full-automatic mechanical sampling rapid online ash measurement equipment, which comprises an articulated chute, a collection frame, a flow guide pipe and a measurement pipe, the articulated chute is provided with a plurality of threading holes, the collection frame is arranged in the articulated chute, the flow guide pipe is fixedly connected to the lower end of the collection frame, the measurement pipe is installed at the lower end of the flow guide pipe, and the flow guide pipe is fixedly connected to the lower end of the collection frame. An online ash measuring device is fixedly connected to the measuring pipe, a second wire is installed on the online ash measuring device, and one end of the second wire penetrates through the threading hole and is located on the outer side of the elephant trunk. According to the invention, the influence of external factors such as steel wires in the adhesive tape, the compaction degree and thickness of a coal seam and the like on ash content measurement can be eliminated, the measurement precision and accuracy of the online ash meter can be obviously improved, and meanwhile, the rapid online ash measurement structure is directly arranged in the elephant trunk, so that the detection paths are greatly reduced, and the detection efficiency is improved. The accuracy and the real-time performance of ash content measurement are ensured, and the detection speed is also improved.

Description

technical field [0001] The invention belongs to the technical field of sampling ash measurement, and in particular relates to a device for automatic mechanical sampling and rapid online ash measurement. Background technique [0002] In the coal preparation industry, whether it is a thermal coal preparation plant or a coking coal preparation plant, the most important product is clean coal, and the most important quality indicator of the clean coal product is the ash content of the clean coal product. Depending on the quality of coal products, the real-time detection of ash content of clean coal products is very important in the daily production of coal preparation plants. [0003] As the main technology and means for the detection of clean coal ash content, the radioisotope online ash measuring instrument is installed on the clean coal belt. After passing through the coal seam, due to the difference in the density of combustible coal and the remaining non-combustible mineral...

AI Technical Summary

Problems solved by technology

However, due to the influence of external factors such as the belt itself and the coal seam compaction and thickness on the belt on the ash measurement, it will directly affect the accuracy of the ash measurement results.

[0004] If you want to detect the ash content of clean coal, in order to ensure the accuracy and avoid the impact of equipment such as belt conveyors on the ash content of clean coal, you first need to sample clean coal. In the prior art, the sampling of clean coal is generally Fully automatic mechanical sampling equipment is used to sample clean coal. The Chinese invention patent with application number ZL202110237282.7 discloses a continuous sampling-detection-returning device for an online ash analyzer, but due to the long detection path, the coal flow velocity in the detection path is much smaller than the coal flow velocity in the chute, the detection has a large hysteresis, and the speed cannot meet the actual demand

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