Tixotherm Whey Pilot Plant System w/Jacketed Paddle Dryer and Fluid Bed Dryer
| Loeb # | 63620 | Model | |
|---|---|---|---|
| OEM | G E A Group | ||
| Year | 2004 | Serial | |
| Electrical | 3/230/460/60 | Location | LOEB East Bldg #1 East Side |
| Condition | As is | Size | 0.00 |
| Lease for only | 3,406.37 / mo. | Rent for only | N/A |
Tixotherm Whey Pilot Plant System. Capacity 190 lbs/hr of product at 60% total solids. Including; Tixotherm Controls with (3) AB Power Flex 70, (6) AB STS and power transformer. S/S Cone Bottom Bag Filter, 4 ft Dia x 8 ft St Side, 3 1/2 ft Deep cone bottom w/ 6 in tri clamp side port, Pnuematic vibrator and 6 in CBO w/ manual gate valve, (5) impulse jets, 10 in Dia side top inlet, 9 in dia side port, bolt on top cover. Mueller 10 in Dia x 10 ft L S/S Jacketed Paddle type dryer, Max Working pressure: 150 PSI @ 350 deg F, -20 deg F @ 150 PSI, Nat Bd #38269, 70, 71, S/N 323222-1,-2,-3, Top Ports: (3) 1 in flanged, (1) 3 in Flanged w/ Cover, (1) 4 in flanged w/ cover, 6 in dia top end inlet, 4 in x 4 in end bottom discharge, 10/7.5 HP. Double Helix Screw Conveyor 14 in W x 7 ft L x 9 in deep, 9 in dia s/s auger 3 in H flights on 2 1/2 in dia shaft spaced 8 1/2 in on center, (2) hinged covers, 14in x 15 in top end opening, 1/3 HP 3/60/230/460 1720 Rpm Drive, (4) slide track style casters. Heating/Conditioning Unit For Dryer,Advance Coil Heating Unit For Dryer, S/N 1747-C (2004) Max pressure: 250 PSI Max Temp: 400 Deg F, Steam connections 4 in x 15 in Inlet, 6 in Dia outlet, 5 HP IAP Blower. Advance coil Air Conditioning unit for Dryer, S/N 1747-3 (2004) MAx Pressure: 250 PSI Max Temp: 400 Deg F, 3 HP IAP Blower, 6 in dia flanged Inlet and outlet. Machine and Process Hammer Mill, Dual rows 2 in L Blunt blade hammers, 24 in x 12 in top opening, cone bottom 14 in deep hopper with 6 in tri clamp outlet5 HP drive. Machine and Process MPD 1612 304 S/SRigimill Mill, S/S housing, 3 in top inlet w/ 2 1/2 in threaded port, 15 HP drive. 3-Zone Fluid Bed Dryer, Top ports: 7 1/2 in x 13 1/2, 9 in flanged, 4 1/2 ft L x 2 ft W x 4 ft H Top section, Side Ports: (2) 19 in dia manways with covers, 6 in Dia flanged outlet, 4 1/2 ft L x 2 ft W x 16 in deep Bottom Section, Rotating Rake, internal perforated plates, Side ports: (2) 6 in flanged, (4) 3 in triclamp, (1) 9 in flanged w/ bolt on cover. Moyno Metering/Dosing Pump, Exhaust Blower, misc piping and valves. The TIXOTHERM process, developed by Niro (patent pending) offers these advantages. When applying TIXOTHERM for processing of the permeate, the process is starting again by evaporation to about 60% in which TVR multi-effect or MVR solutions can be chosen. To ensure 20 h production a decalcification process should be included. After evaporation you can forget everything about flash-cooling, precrystallization, tremendous building sizes and high energy consumption, i.e. the features necessary for traditional processes. The process is a simple three-step process consisting of the following operations: Concentration, Curing, Final Drying and cooling. The concentration is conducted in the ROSINAIRE Paddle-Processor, manufactured by Barr-Rosin and conducting following operations: receives the uncrystallized feed of 60% TS from the evaporator, concentrates it as a thin film on the heated side walls to 86% solids, whereby high shear-rates utilize the thixotropic nature of permeate and thus it is achieved almost instantaneous crystallization by optimizing moisture and temperature of the paste, evaporated moisture is removed by the air drawing counter-currently through the annular space, this saturated air is cleansed in the scrubber and exhausted to the atmosphere. The ROSINAIRE paddle dryer consisting of a double jacketed horizontal tube heated by means of steam is shown on fig.8. A shaft in the centre with paddles is moving the concentrate slowly forward, while the evaporation takes place. To remove the vapour a counter-current air stream is established, which is passed through a wet scrubber for cleaning, and together with the evaporation itself this keeps the temperature of the product low, so that discolouring is avoided. As the lactose will be super-saturated, a spontaneous crystallization will occur. A viscosity increase will take place partly due to the crystallization and increase in the solids content, but due to the thixotropic nature of the product the vigorous mechanical treatment in the ROSINAIRE will keep the product fluent. When the product is discharged at ca 86%TS it is like a paste. The next processing step which is a holding, curing and stabilization step conducted in a screw conveyor with two augers. The screw conveyor is double jacketed and chilled water is circulated to cool the product. This is done for the following reasons: the lactose becomes super-saturated again so that further crystallization is obtained and due to long enough holding time it is obtained almost 100% crystallization, browning of the product is avoided, viscosity is increasing, facilitating thereby the disintegration in the fluid bed. At the discharge from the screw conveyor the product exhibits a texture suitable for fluid bed drying. The product is therefore further processed on a combined back-mix /plug-flow fluid bed, similar to the lactose fluid bed, operating with a powder depth of about 1m. This type of fluid bed is very well known in the chemical industry, it is non-vibrating and thereby with reduced maintenance costs and is compact in comparison with vibrating systems. It is provided with an agitator as shown on the next picture. This is the final operation step, but milling of the final product is recommended. The outlet air from the fluid bed is cleaned in a SANICIP bag filter. This filter is fully CIP'able and provides effective powder removal from the exhaust air. A TIXOTHERM building compares very favorably when compared to the building for a traditional Spray Dryer for the same processing capacity. TIXOTHERM energy consumption compares very favorably when compared to the energy consumption for a traditional Spray Dryer for the same processing capacity.
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