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- Bin Level Indicators ILT - ILT-type Bin Level Indicators are designed for electric signalling by rotary action of minimum or maxim...
- Silo Safety System KCS - Damage to a silo or its accessories is most likely during filling operation from the tanker due to the ri...
WAMGROUP offers a Silo Safety System consisting of various components. The system ensures problem-free plant operation especially during silo filling by tanker.
Silo Safety System
KCS
Safety for people and the environment
Damage to a silo or its accessories is most likely during filling operation from the tanker due to the risk of overfilling or excess pressurisation. The KCS system prevents both overfilling and excess pressurisation avoiding damage to silo, venting filter and other accessories. It also reduces the risk of dust emission into the atmosphere.
The KCS Silo Safety System for the safeguarding of silos consists of a central electronic monitoring and control panel which manages a series of silos and a component kit including, in the basic version, one power panel for each silo, a silo pipe connection, a pinch valve, a tanker coupling to the filling pipe, a maximum level indicator, a differential pressure switch or electronic pressure meter, a pressure gauge for the venting filter, a pressure relief valve, and an audible alarm.
The KCS silo overfill protection system can be used for silos that are pneumatically filled with bulk materials in powder or granulate form by silo vehicles.
The risk of damage to the silo is greatest during filling by the silo vehicle due to overfilling or excessive injection pressure. The KCS silo overfill protection, which is supplied in individual components, prevents overfilling as well as the development of overpressure in the silo and thus protects the silo, dedusting filter and all other silo components from damage and the environment from dust emissions.
Silos that are pneumatically filled with powdery substances are prone to overfilling. The resultant damage to the silo and its filter system as well as the consequential environmental pollution can lead to considerable cost, not to mention inherent damage to the operators.
The BS Overfill Security Sytem (a modular system) can be adjusted according to customers’ individual requirements. This offers varied possibilities for future extensions.
Basic unit:
Consists of a pinch valve with a solenoid valve, level probe, switchbox with warning light (filling in process/silo filled) and horn.
Supplementary unit # 1:
Fully automatic filter control system for mechanically cleaned filter (STAFI): Consists of a locking device plus corresponding control unit. The filter is cleaned for approx. 30 seconds before and after every coupling with a vehicle. During this time the pinch valve remains closed thus preventing the escape of dust particles.
Supplementary unit # 2:
Final surge limitation for mechanically cleaned filter: The pressure in the silo is supervised by a push-button switch. If the pressure in the silo gets too high during the filling, the pinch valve closes, which is indicated by a light. Afterwards it reopens.
Supplementary unit # 2a:
Final surge limitation for a pneumatic filter: The pressure in the silo is supervised by a push-button switch. If the pressure in the silo gets too high, the pinch valve closes for about 30 seconds to allow the filter a cleaning period. Afterwards it reopens.
Supplementary unit # 3:
Shows position of the pinch valve. The actual position of the pinch valve is displayed in the switchbox by means of a push-button switch. Simultaneously a defective rubber gasket can be recognised.
Supplementary unit # 3a:
Only in combination with supplementary unit # 3. Malfunction notification of defective rubber gasket in the pinch valve and of defective solenoid valve.
Supplementary unit # 4:
Security supervision by loss of air pressure: The air pressure in the supply line is supervised by a push-button switch. In case of air pressure decrease in the system, the pinch valve closes by means of a pressure accumulator. The fault is indicated in the switchbox.
Supplementary unit # 5:
Filling level control. The filling level is supervised in the accurately measured by means of a capacitive or a microwave-guided level indicator with a probe or the "weigh out" of the silo. The actual silo filling level is shown in a display unit. Caution: not for permanent maximum level control.
- Silo Overfill Protection | Dosing Augers | Silo Level Measurement Systems
- Silo Overfill Protection | Fittings of Fillers | Silo Level Measurement Systems
- Silo Overfill Protection | Silo Level Measurement Systems | Moulding silos
- Silo Overfill Protection | Silos | Top Silo Filter
- Silo Overfill Protection | Filling Installations | Silo Plants
- Silo Overfill Protection | Silos of Steel | Tank Plants
PTL Hermann GmbH develops and manufactures vibration type level switches for detecting the presence or absence of powdered or granular solids that are stored in all kinds of silos, hoppers and containers. The products get distributed worldwide.
Principle of operation:
a vibrating system gets forced to vibrate on its resonance frequency by a piezo crystal drive. If filling material, (bulk solids), covers the vibrating blade of the probe, its vibration gets damped. This is sensed by the electronic circuit and the output switches. When the blade gets uncovered due to declining level, the instrument restarts to vibrate and the output switches back.
Product Overview
LEVELSWITCH CV120 / CV130 / CV140 / CV150
Vibrating level switch for all kinds of powdered and granular solids. Applicable for heavy materials like cement as well as for light materials with densities down to 20 grams/litre. Grain size from powder to max. 40mm. Process connection 11/2", insertion lengths 172mm up to 20m.
STOCKTROL CV210 / CV310 / CV410 / CV510
Vibrating level switch for all kinds of powdered and granular solids. For heavy materials as well as for extremely light materials like styrofoam with densities even down to 10 grams/litre. Grain size from powder to max. 20mm. Process connection 11/2", insertion lengths 190mm up to 20m
CV600/CV660
Low-Cost vibrating level switches for grained and granular solids with minimum densities of 20 grams/litre (CV660: 50 grams/litre) and max. grain sizes of 10mm. Process connection 1", insertion length 157mm
SHT 120/130/140
Vibrating level switch for powdered and granular solids with high process temperatures up to 250°C. Process connection 11/2", insertion lengths 184mm up to 4m.
The instruments can be used for overfill protection, for high or low level alarm and in a special configuration for the detection of interfaces, e.g. sand that has settled in water (special model SEDIMENT).
The unique, patented single rod designs of our instruments make them work perfectly and reliably even at critical applications where conventional products cause problems due to bridge building, material build-up or rat holing.
- Rotary paddle level limit switch Rotonivo® - Rotary Paddle Level SwitchDepending on the requirements, the Rotonivo® rotary paddle ...
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We are your competent partner for level measurement in all kind of solids applications.
Our strengths are in bulk solid handling based on our product lines Rotonivo, Vibranivo, Capanivo, Nivobob (UWT plumb bob system) and Nivowave, but we also offer competent solutions for other tasks.
Worldwide we are renowned for our ability to provide customized solutions.
Our products are distinguished by their easy handling, extreme reliability and high durability.
Rotonivo®
- SIL 2 compliant
- World ´s first universal voltage electronics
- Rotation principle insensitive to caking
- Robust aluminium die cast housing
- Adjustable sensitivity (DC >15 g/l)
- Protected motor (friction clutch & double bearing)
- Long lifespan (brushless synchronised motor)
- Temperature range from -40°C to +1,100°C
- High quality grade stainless steel (process)
Vibranivo®
- PFA and Teflon coating
- High sensitivity (DC < 5 g/l)
- Surface roughness of 0.75 μm
- Temperature range from -40°C to 150°C
- NAMUR Standard
- Suitable for overpressure up to 16 bar
- Extremely robust short version
- High quality material in the process
- Level control of sediments in liquids
Capanivo®
- Independent of silo wall
- Temperature range from -40°C to +180°C
- Variety of supply voltages
- Adjustable switching delay
- High sensitivity (DC > 1.5 g/l)
- Overpressure up to 25 bar
- Approvals for dust explosive environments
- Variety of mechanical versions
RFnivo®
- Bulk materials with very low DC value > 1.5 g/l
- Applications with process pressure up to 25bar
- Vibration in the container
- High safety standard
- High hygiene requirements
- Simple to install and set up
- PFA coating
- Temperature range from -40°C up to +500°C
- High quality process materials (VA 1,4571/1,4404, ceramics, PPS)
Nivobob®
- Overpressure version up to 1.7 bar
- Temperature range from -40°C to +250°C
- Integrated tape cleaner
- Diagnostics function
- Measurement range of up to 70m
- Simple installation and set up
- Measuring Range up to 500,000 cycles
- Remote programming, analysis for up to 10 instruments
- Comm. via Modbus RTU or Profibus DP
Nivotec®
- Level monitoring and visualisation
Rotonivo®
- Strong caking
- Dusty environments
- Abrasive materials
- Extreme process temperature
- Over pressure and low pressure environments
- Explosive environments
- Heavy mechanical loading
- Electrostatic charging
- Various changing factors
Vibranivo®
- Extremely light product density
- Pneumatic filling
- Process overpressure
- Limited space
- Vibration within the vessel
- High reliability requirements
- High hygienic requirements
- Sediment levels in liquids
- Explosive environments
Capanivo®
- Dusty environments
- Light materials
- Pneumatic filling
- Overpressure
- Explosive environments
- Corrosion resistance for aggressive material
- High chemical resistance
- High standard of safety requirement
- Caking
RFnivo®
- Dusty environments
- Abrasive media
- Extreme process temperatures
- Positive and negative pressure
- Hazardous areas
- Heavy materials
- Caking bulk solids
Nivobob®
- Strong caking
- Material with changing temperature and humidity
- Electrostatic charging
- Heavy material
- Limited space
- Low dielectric constant
- Explosive environments
- Large measurement distances
- Aggressive environments (noisy, dirty)
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