A method and device for rapidly producing pulverized coal light sheet by ultrasonic defoaming

Abstract

The invention discloses a method and device for rapidly producing pulverized coal light sheets through ultrasonic defoaming, which belong to the method and device for making pulverized coal light sheets. The film making device includes an ultrasonic defoamer and a light sheet forming device. The ultrasonic generator of the ultrasonic defoamer is connected to the transducer through a wire, and the transducer is connected to the base through a height-adjusting screw. There is an object table at the upper end, and the light sheet forming device is located on the object table; there is a tool head above the object table, and the tool head is connected to the lower end of the transducer; there is a display screen, a frequency modulation knob and a socket on the ultrasonic generator; The piston of the sheet forming device is placed in the mold and can move freely; the mold is cylindrical; there are two pistons, the push rod is located at one end of the piston, and there are micro holes on the piston head. During the production process, an ultrasonic defoamer is used to eliminate bubbles in the mixed solution, and finally the optical film is cleaned with ultrasonic waves. The use of molds for the production of pulverized coal light sheets reduces the waste of coal samples, and the time is short and the cost is low.

Description

technical field [0001] The invention relates to a method and a device for making a pulverized coal light sheet, in particular to a method and a device for rapidly manufacturing a pulverized coal light sheet by ultrasonic defoaming. Background technique [0002] At present, evaluating coal quality, identifying mixed coal, and scientific coal blending are effective means of coal quality detection methods. By observing and manufacturing pulverized coal light slices, experiments such as the measurement of vitrinite reflectance, the quantitative determination of microscopic coal rock components, the measurement of coke optical structure and the determination of coke pore structure can be carried out, so as to judge the degree of metamorphism of coal and the best blending of coal. Index, vitrinite reflectance index has been used by more and more coking enterprises for coal trade and coal quality monitoring; the production quality of pulverized coal light film is one of the prerequ...

AI Technical Summary

Problems solved by technology

[0011] (2) The traditional method of producing pulverized coal light sheets is time-consuming and inefficient, and is only suitable for large-scale mass production

Individuals cannot produce it. Even if they make it personally, it is time-consuming and labor-intensive. If you want to conduct small-scale scientific experiments and need less pulverized coal light sheets, you need to spend a lot of money to go to the factory production line for customized purchases. According to the survey, It takes hundreds of dollars to make a group of pulverized coal light film samples, which is a waste of unnecessary financial and material resources

[0012] (3) It is extremely inconvenient to use the traditionally produced pulverized coal light film and it is difficult to guarantee the quality of the light film

The pulverized coal light sheet must be flat, smooth, and have a certain degree of light reflection and light transmission, so as to facilitate observation. Obviously there are more air bubbles in it, but there are still some problems in it, and some air is easy to mix in, making the air bubbles in the coal sample It can neither escape by itself nor expel these bubbles by its own weight. There are bubbles in the produced pulverized coal light sheet, which affects the experimental observation.

[0013] (4) After the grinding, the sample was not carefully cleaned, so that the powdered coal light sheet remained sand and coal dust, which affected the further observation of the experiment

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