The harsh environment of the dust removal bin makes the measurement of its material level a difficult problem; Ordinary measurements such as resistive rotary level switches, vibrating rod level switches, capacitive level switches, etc. are generally in a semi operational state after about three months of use until they become paralyzed and cannot be measured or controlled. The reasons for its failure can be summarized as follows: (1) Currently, the measurement of the material level in the dust removal bin is carried out using a side mounted method, and the insertion depth of the side mounted level instrument often cannot exceed one meter. Because when the insertion depth exceeds one meter, the accumulated powder in the warehouse will bend the inserted probe rod; （2） Due to the relatively small particles of dust collected during dust removal, it is most likely to form internal hanging materials in the warehouse; （3） The condensation caused by the production process leads to severe powder hanging in the warehouse.

Based on the above reasons analysis, in order to accurately measure the height of the material level in the dust removal bin, it is necessary to find a way to prevent the measuring probe from being buried by the hanging materials in the bin. Based on a comprehensive analysis of various drawbacks and factors of dust removal warehouses both domestically and internationally, and taking into account the internal structural characteristics of dust removal warehouses, combined with our factory's years of production material level experience, we have invented a dust removal warehouse material level measuring instrument. It can fundamentally avoid the submergence of the probe by hanging materials in the silo and accurately measure the material level. It also has characteristics such as friction resistance, solid material impact resistance, corrosion resistance, and high temperature resistance, so it can be used and measured in the dust removal silo for many years.

Product features of dust removal bin level gauge

1. Strong adaptability: It can be used in any dust removal chamber, and can be used freely in working environments with high temperature, high pressure, strong corrosion, strong adhesion, and strong dust.

2. No maintenance required: Due to the simple structure of the sensor and the absence of movable parts, there is no need for maintenance once it is put into operation.

3. Punctuation is simple: it can be automatically completed at one time using any two points in the warehouse.

4. Versatile performance: capable of displaying the material level of the dust removal bin through continuous measurement or switching signals.

5. No temperature drift: No drift will occur due to changes in the temperature or density of the medium

6. Reliable lifespan: Unique technology ensures instrument service life of up to 15 years

Specification

★ Accuracy: ± 0.2%, resolution up to 0.002%

★ Temperature range:

The ambient temperature of the controller is -30-60 ℃

Working temperature of sensor electrical box: -30-70 ℃

Sensor probe working temperature: -150-240 ℃

★ Power supply: 220VAC 50/60Hz or 24VDC (optional)

★ Output: 4-20mA (four sets of relay contacts 3A250V/50Hz)

★ Signal transmission: The signal transmission of sensors and control instruments can reach up to 1000 meters

★ Delay time: 0-18 seconds adjustable

★ Connecting cable: 3m~10m

★ Electrostatic spark protection: unique electrostatic elimination function

★ Shell protection: Compliant with IP67 standard

Installation of dust removal bin level measuring instrument

Internal structure of dust removal chamber:

In the design and production of dust removal chambers, in order to prevent deformation and screen for large particles. Often welded with channel steel or mesh inside the warehouse. We must use the channel steel or screen layer in the warehouse to avoid the hanging layer of the material level probe without making major changes to the old equipment.

As we have analyzed above, in order to accurately measure the materials in the dust removal bin with a level probe that can adapt to the bin, the key is to avoid the hanging layer, which requires us to use the channel steel or screen in the dust removal bin. Firstly, we weld the installation base required for the probe in the middle of the channel steel, vertically install the measuring probe from the installation base, and then lead the signal out along the lower part of the channel steel from the base. This can avoid the hanging layer and accurately and continuously measure the material level of the dust removal bin.