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The advantages and problematic points of resistive level switches for calcium carbide material level measurement!

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The advantages and problematic points of resistive level switches for calcium carbide material level measurement!

The advantages and problematic points of resistive level switches for calcium carbide material level measurement!

2023-05-10

In the calcium carbide workshop, the dust is high, the calcium carbide is easily ashed in the air, and in the case of humid air, the calcium carbide will be ashed faster and a large amount of acetylene gas will gather around it, which brings certain safety hazards. In order to ensure production safety and reduce the volatile loss of calcium carbide, usually the calcium carbide silo volume is not large, and need to intermittent charging, so the accurate control of the material level is very important. Since calcium carbide silo is an open container, the upper limit of the material needs to be limited to ensure the safety and smooth production, and the rotary level switch is more often used for calcium carbide level measurement. However, in the actual application, due to the working conditions and the performance of the instrument itself, the rotary level switch has advantages in the measurement of calcium carbide material level, but there are also some problematic points.

rotary level switch

A. The advantages of the resistive level switch

  1、Stable and reliable. Contact measurement, the results are true, accurate and reliable, easy to install and use, not affected by the size, shape, density, adhesive ash and tar of calcium carbide. Because of its internal no more complex electronic components and amplifying circuit part, not subject to the interference of the magnetic radiation of the large motor on site.

  2、Install and use. No need to debug and set up after installation, can be used for a long time.

  3、Good anti-vibration. With super anti-vibration performance, even in the case of large vibrations of silo feeding and discharging, it can also measure accurately and will not send out wrong signals.

news-Kaidi Sensors-The advantages and problematic points of resistive level switches for calcium car

4、Double protection. With overload protection and automatic protection double protection function, where the overload protection function can effectively avoid the blade by the impact of incoming calcium carbide and damage the motor; automatic protection function makes the instrument in the bin with material blade rotation blocked when the power off does not work, so as to effectively protect the motor and extend its service life.

  5、Good sealing. With super dustproof sealing performance, even in the high concentration of calcium carbide dust environment when entering and leaving the material, it can also better prevent the dust from entering the instrument.

  6、Sturdy and durable. Anti-vibration and anti-loose structure can effectively avoid loose and slippery parts. The main exposed parts are made of high quality 304/316L stainless steel, which makes it have excellent corrosion resistance and wear resistance.

  7、Have high cost performance.

tuning fork level switch

Second, the problems of the rotary level switch

  1、The cable of the rotary level switch needs to be set up inside the silo with the instrument, using 220V AC power. Because of the complex working conditions in the silo and at the site, it is easy to cause the cable and the tuning fork level switch to be scraped and collided by the material; and the calcium carbide silo has high requirements for explosion-proof, so the level switch and the cable using 220V AC power must have high safety and explosion-proof performance.

  2, calcium carbide silo material level in the limit of time is relatively small, a single but the instrument motor has been in operation, the motor failure may be hot, which will affect the safety of the silo, the need for regular maintenance of the instrument.

  3, calcium carbide silo work site is dusty, level switch soon after installation, will be covered with thick ash, and the meter is installed in the silo slightly off the location of the feed enclosure, not convenient for inspection and maintenance.


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