A diaphragm automatic replacement structure

Abstract

The invention discloses an automatic diaphragm replacement structure, which includes a diaphragm case, a diaphragm pre-tensioning device is installed at the rear end of the diaphragm case, and the diaphragm pre-tensioning device pushes a diaphragm pre-tensioning ring in the diaphragm case to hold the diaphragm A plurality of diaphragms in the box are pressed together and attached to the front end of the diaphragm case; a push device is provided on the front side of the diaphragm case, and the front end of the push device is aligned with a film at the front end of the diaphragm case. The side edge of the diaphragm, the front side wall of the diaphragm box is provided with a gap, the width of the gap is greater than the thickness of the diaphragm; the gap is aligned with the side of the pulp container mouth. It is easy to replace when replenishing the diaphragm, more reliable when using the diaphragm to seal the container mouth, and more compact in mechanical structure.

Description

technical field [0001] The invention relates to a diaphragm replacement device of a grade analyzer, in particular to an automatic diaphragm replacement structure. Background technique [0002] The grade analyzer is an important detection equipment in the mineral processing industry, which can provide the grade information of the elements in the pulp in real time. The grade analyzer generally uses the X-ray fluorescence method to work, that is, using X-rays to irradiate the pulp, and obtains the type and grade information of elements by detecting and processing the X-rays emitted by the pulp. [0003] The diaphragm is an important part in the grade analyzer, and its function is to isolate the pulp and the X-ray detection equipment (such as X-ray generator, X-ray detector, etc.) to protect the safety of the X-ray detection equipment. At the same time, X-rays can also easily pass through the diaphragm to complete the detection process. [0004] Because the diaphragm is washed...

AI Technical Summary

Problems solved by technology

[0008] 1. Press the diaphragm manually, and the pressing force varies from person to person, which may lead to too tight or too loose

If the pressure is too tight, the diaphragm is easy to break; if the pressure is too loose, the slurry is easy to leak

[0009] 2. The diaphragm needs to be replaced every one to two days, so every one or two days, it is necessary to manually maintain the grade analyzer, which is a huge workload

[0010] 3. Using manual fixing methods such as buckles and bolts, it is difficult to balance the convenience of disassembly and the reliability of fastening

[0014] 1. Due to the existence of two rollers, the overall volume of the mechanism is too large

[0015] 2. When replacing the diaphragm, the entire roller needs to be disassembled, and the maintenance workload is large

[0016] 3. The compression force of the diaphragm on the container mouth is limited by the friction force of the diaphragm surface, and there is a risk of leakage when the slurry pressure in the container is high

[0017] 4. During the working process of pressing the container mouth and loosening the container mouth, a certain part of the diaphragm will be deformed and loosened, which may cause the diaphragm to be unable to be compressed in the next working process, so that it cannot be sealed Hold the container mouth

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