고주파식 분체 질량유량계
제  조 사 : HENSE Wagetechnik GmbH
사용범위 : 0~600 ton/hr
용      도 : 진공콘베어에 적용하는 분체 유량계
 

Mass flow measurement for bulk materials


A<pplication and Function>

Our solids flow meter MIC is designed for bulk-solids flow measurement in metallic pipes from a few kg/h to many t/h. The system is suitable for on-line measurements of powders, dusts, pellets, and granules from 1nm up to 2cm in pneumatic or free fall conditions.

 

The measurement principle of the MIC is based on the Doppler-Effect, where the sensor generates a uniform field in the microwave frequency range inside the metallic pipe. These microwaves are being reflected by particles passing through the pipe. Calculation of frequency and amplitude changes allows for accurate determination of solids flow. Non-moving particles like accumulated dust are excluded from the calculation.

 

The installation is simple and cost effective via a welded branch, through which the sensor is screwed flush to the inside of the pipe. The sensor is connected to a DIN-rail mounted transmitter with 4...20 mA, RS232 and RS485 output. The calibration is made easy by using our MF–SMART software and a reference solids flow value.

 

<Main Benefits>

For pneumatic conveyors and free falling processes
For all solid materials from a few kg/h to many t/h
No armatures inside the pipe and inside flush fitting
Very fast and non-contact measurement Easy, quick and cost effective installation and start-up

Galvanic separated DIN-Rail Transmitter with RS232- and RS485-Interface
Robust stainless steel version, abrasion and maintenance free
Limit value monitoring with alarm contact Sensor-transmitter distance up to 2.000 m Easy and quick calibration
Adjustable sensitivity
Optional: ATEX for Zone 20 and Zone 2

 

<Application examples of successfully measured products>

The MIC has been used in pneumatic transportations and free falling processes. The product’s grain size can be between 1 nm and 20mm. The moisture level of the product is allowed to vary by up to 12%.

-Materials: All dust, powders, granulates, panels, threads etc. Also sticking or abrasive materials

-Range of detection: From kg/h to many t/h

-Industries: Animal feed industry Building materials industry Cement industry Chemical industry Detergent industry Engineering companies Food industry
Glass production
Metal production

Pharmaceuticals
Pigment production Plastic industry Production of ceramics Production of rubber goods Production of textiles Tobacco industry Washing powder industry

 

<Process Data>

MF 3000 Measurement start free fall : Ca. 1 kg/h

Measurement start pneumatic transport   : Ca. 1 kg/h
Max. pipe diameter   :   DN 300 (bigger diameter on request)

Grain size  :  1 Nanometer up to 20 mm

Moisture  :  Dependant on the product

Pressure  :  Up to 6 bar (Option up to 30 bar)

Process temperature  : -20 up to +90°C (Option up to +750°C)

 

<Technical Data  Sensor>

Medium touched parts  :   Stainl. steel 1.4307 and PA 6.6

Process connecting  :  Welding flange

Protection class  :  Stainl. steel 1.4307 or ST52

Power supply   :  IP 65

 

<Technical Data Transmitter>

Construction  :  DIN-Rail, 22,5 mm

Power Supply  :  24 V AC/DC

Power consumption  :  Max. 2W (+0,3 – 8,5W for thermocouple)

Ambient  : 

temperature  :   -10 to +60°C

Protection class   :  IP 30