Blanking stack height measuring device

Abstract

The invention discloses a measuring device of blank pile height, containing a protective fixing device, a free swing device, a swing degree detection device and a signal output device; the protective fixing device is used for installing the swing device, the swing degree detection device and signal output device, meanwhile providing protective function. The free swing device comprises a shaft and a swing. The shaft is fixed on the protective fixing device and the swing can swing with a certain degree around the shaft so that the size of the degree is limited by the protective fixing device. The shape and weight of the swing should be designed according to the degree of measured blank and blank pile sloping surface so that the swing can be pushed deviating from the position of free sag to the position that a swing angle detection device can detect when the blank pile sloping surface rises to the position of the swing. The signal output device is used for providing alarm signal output, and sometime the swing angle detection device simultaneously has signal output function.

Description

【Technical field】 [0001] The invention relates to a height measuring device, in particular to a measuring device for the height of a blanking pile. 【Background technique】 [0002] In the fields of chemical industry, metallurgy, coal, electric power, agriculture, etc., in the process of conveying materials, it is often necessary to measure the height of material piles in hoppers, silos, and stockyards. The falling pile refers to the conical pile formed by the solid material (including powdery material) falling freely in the container or on the stockyard from the discharge port or the material conveying device. [0003] Existing stockpile height measuring devices can be divided into non-contact and contact types. [0004] There are: radar type, ultrasonic type and ray type which are not in contact with the material to be tested. [0005] The radar type and the ultrasonic type are usually installed on the top of the stockpile, and measure the stockpile by transmitting electro...

AI Technical Summary

Problems solved by technology

The disadvantage is that there are active moving parts and easy to wear

If it is installed on the side, it is easy to be smashed by falling materials, and it is not easy to measure the high point of the pile

If installed on the top, the transmission shaft is too long and easy to be damaged

The tuning fork type is easily damaged by materials, and its anti-interference ability is poor

When measuring the height of the stockpile, the resistive contact level meter will often send out error signals due to the high temperature, dust, high humidity and other factors of the material, which will make the material level alarm incorrect and bring certain harm to the production.

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