CONTINUOUS VACUUM PAN
AUTOMATION
BASED ON YUTECH FLUID-DENSITY-BRIX ANALYZER CUM CONTROL SYSTEM AND
MOTORIZED FLUID-DENSITY SENSOR
CONTINUOUS PAN AUTOMATION FEATURES:
- SEED OR MAGMA FLOW CONTROL WITH RESPECT TO MOLASSES OR LIQUOR FLOW ENSURES MAINTAINED MOLASSES-TO-SEED RATIO.
- YUTECH FLUIDDENSITY-BRIX OR YUTECH BRIX SENSING AND MOLASSES / WATER INTAKE CONTROL FOR EACH COMPARTMENT.
- TEMPERATURE SENSING THROUGHOUT THE CV PAN ENSURES UNIFORM TEMPERATURE INSIDE THE CV PAN BODY.
- CALENDRIA VAPOUR PRESSURE CONTROL.
- STANDALONE SYSTEM FOR CV PAN HAVING COMMUNICATION WITH MAIN PLC / DCS SYSTEM.
CONTINUOUS VACUUM PAN AUTOMATION
Seed or Magma Flow Control with respect to Molasses or
Liquor Flow:
- Molasses and Seed Flowmeters sense Flow.
- Ratio Controller delivers exact Flow of Seed wrt Molasses Quantity by Controlling Seed / Magma Pump VFD.
Individual Compartment Brix Control by Auto Feeding Molasses or Water into each Compartment:
- Consistency-Brix OR Brix Sensing of each Compartment by YUTECH Fluid-Density-Brix Analyzer OR YUTECH Brix Analyzer.
- Control of Molasses Intake Valve w.r.t., Brix Set Point, and Process Value in a PID Mode.
- Addition of Water if required as per Process Dynamics.
BASIC SCIENCE BEHIND FLUID-DENSITY-BRIX:
- Fluid-Density: the Density of a particular Fluid.
- Density: is defined as" Mass per unit volume", which means it is the Mass contained in a fixed volume. It is denoted by "p" which is a Greek Letter called "Rho".
- Density can be derived using the formula "p = m/v" where p is the Fuild-Density, m is the Mass and V is Volume. The unit to measure Fluid- Density is kg/m3 (Kilogram per cubic meter).
- Brix: the measurement in percentage by weight of sucrose in pure water solution.
- Online Direct measurement of Brix in a Process Fluid is difficult, so indirect methods are used.
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The most popular ways of measuring Brix are:
- Hygrometric and Refractometric (Lab Methods).
- High-Frequency or Radio-Frequency Conductivity type Brix Sensing.
- Microwave Type Brix Sensing.
- Fluid-Density Type Brix Sensing.
- While Conductivity or Microwave methods are very successful in measuring Brix of "B and C" Massecuite in CVP, Brix of Sugar Melt, and Brix in a Molasses Conditioner unit, they cannot measure Brix of "A" Massecuite as we measure the Fluid's electrical quality which is variable.
- Fluid-Density Measurement using a Motorized Stirring Sensor proves very successful as it directly measures the Fluid's mechanical quality of Fluid irrespective of its electrical characteristics. Thus measured Fluid-Density Value is further processed in the Fluid-Density- Brix Equation, to derive Fluid-Density-Brix.
SALIENT FEATURES:
- Fluid-Density Type Brix Analyzer System targets sensing the Fluid-Density of Liquids, Slurries, or Syrups like Sugar Massecuite, Sugar Syrup, Sugar Melt, Liquors, and Molasses.
- The Motorized Fluid-Density Sensor is specially designed to be inserted in a vessel to stir the Fluid Media and Measure its Fluid-Density which can be expressed in simple terms as the Tightness or Thinness of a Fluid Media. It can also be informally referred to as the Consistency of the Fluid and is a Mechanical Property of a Fluid which in Liquids is directly proportional to its Viscosity.
- Motorized Sensor;s torque and power which is required to stir the Fluid varies with varying Fluid-Density.
- The Motorized Fluid-Density Sensor's Power Consumption is directly proportional to the Fluid's Density.
- The variation in the Motorized Fluid-Density Sensor's Power Consumption is sensed by the Fluid-Density Type Brix Analyzer's highly accurate Sensing Circuitry, this deviation is further processed to Derive the Raw Fluid-Density Value.