Used Evaporators - Used and Surplus Inventory | IPP

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IPPE / UGE Inventory Photo

43 square feet luwa wiped film and thin film evaporator
( 4 square meter luwa wiped film and thin film evaporator )

Stock Number: 235999    Capacity: 43 square feet / 4 square meter
Description: 43.2 Sq. Ft., Stainless steel, vertical wiped film evaporator. Built to ASME code. Jacket rated for Rated for 150 psi at 381 degrees F. Internal rated for Vacuum. Manufactured by LUWA, Type NL-430, serial # 14202. Stainless...

 

IPPE / UGE Inventory Photo

43 square feet dedietrich wiped film and thin film evaporator
( 4 square meter dedietrich wiped film and thin film evaporator )

Stock Number: 236071    Capacity: 43 square feet / 4 square meter
Description: 4 square meter 316 stainless steel jacketed thin film evaporator with condenser, manufactured by DeDietrich, type M450P 4M2, fabrik #VM114, internal pressure internal pressure -1/atmospheric @ 160/190 degrees C (735 liter...

 

IPPE / UGE Inventory Photo

189275 lbs/hr praj industries ltd. tube - rising and falling film evaporator
( 85853 kg/hr praj industries ltd. tube - rising and falling film evaporator )

Stock Number: 235482    Capacity: 189275 lbs/hr / 85853 kg/hr
Description: UNUSED, 189,275 lbs./hr. (water evaporation), 316 SS, five effect forced circulation evaporation system. Built to ASME code and code stamped. The tubes off all five effects are 316 SS, and are rated for FV/40 psi at 230...

 

IPPE / UGE Inventory Photo

155640 lbs/hr praj industries ltd. tube - rising and falling film evaporator
( 70579 kg/hr praj industries ltd. tube - rising and falling film evaporator )

Stock Number: 235483    Capacity: 155640 lbs/hr / 70579 kg/hr
Description: UNUSED, 155,640 lbs./hr. (water evaporation), 316 SS, four effect forced circulation evaporation system. Built to ASME code and code stamped. The tubes of 316 SS of all four effects are rated for FV/40 psi at 230 degrees...

 

IPPE / UGE Inventory Photo

91 square foot luwa wiped film and thin film evaporator
( 8 square meters luwa wiped film and thin film evaporator )

Stock Number: 233690    Capacity: 91 square foot / 8 square meters
Description: 91.8 Sq. Ft, 316 stainless steel product contact, horizontal wipe film evaporator. NB# 185. Shell rated at FV/16 psi at 662 degrees F. jacket rated at FV/93 psi at 662 degrees. Manufactured by Luwa. serial # 4.3437.01...

 

IPPE / UGE Inventory Photo

57500 pounds per hour niro tube - rising and falling film evaporator
( 26081 kilos per hour niro tube - rising and falling film evaporator )

Stock Number: 233852    Capacity: 57500 pounds per hour / 26081 kilos per hour
Description: 57,500 lbs./hr. water evaporation capacity, Stainless Steel, sanitary construction, six effect falling film evaporator, with thermal vapor recompression, and two stage flash cooling. The system also includes automatic Clean...

 

IPPE / UGE Inventory Photo

16360 lbs/hr tube - rising and falling film evaporator
( 7420 kg/hr tube - rising and falling film evaporator )

Stock Number: 233950    Capacity: 16360 lbs/hr / 7420 kg/hr
Description: 16,360 Lbs./Hr.(water evaporation rate @5 lbs./Hr. per Sq. Ft. of surface area) Graphite, and Fiberglass double effect falling film evaporation system. Designed to operate with corrosive conditions. The system includes...

 

IPPE / UGE Inventory Photo

1928 lbs/hr miscellaneous evaporator
( 874 kg/hr miscellaneous evaporator )

Stock Number: 233281    Capacity: 1928 lbs/hr / 874 kg/hr
Description: 1928 lbs./hr.,High Alloy, including Hastelloy, forced circulation evaporator system. Originally designed to remove solvents/organics from aqueous waste, and provide distillate water for re use, but can be used in other operations....

 

IPPE / UGE Inventory Photo

2 square foot lci wiped film and thin film evaporator
( 1 square meter lci wiped film and thin film evaporator )

Stock Number: 232537    Capacity: 2 square foot / 1 square meter
Description: 2.15 Sq. Ft. (0.2 m2),(Two SPDU's), 316 SS product contact, complete Short path distillation plant. This unit was previously used to process 300 lbs/day of product. The system consists of two, 0.1 m2 short path distillation...

 

IPPE / UGE Inventory Photo

12 diameter ft 0 crystallizer and evaporator evaporator
( 3657 diameter mm 0 crystallizer and evaporator evaporator )

Stock Number: 232530    Capacity: 12 diameter ft / 3657 diameter mm
Description: 12' diameter, 23,000 Gallon, Derakane 411, vertical crystallizer. Internal coil constructed for Titanium (Ti-Pd Gr7). Vessel rated atmospheric at 160 degrees F, coil rated for 150/FV psi at 200 degrees F. 12' diameter x...
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Used Evaporators

Used Evaporators - Industrial Equipment Evaporators are used to concentrate a solution, separating the vapor from the solution. All evaporation equipment contains a heat exchanger for heating the process solution and a means to effectively separate the vapor from the residual liquid, called a vapor separator. Evaporator performance is rated by Lbs per hour or Kg per hour of evaporation. The greatest increase in steam economy is achieved by reusing the vaporized solvent. This is done in a Multiple Effect Evaporator by using the vapor from one effect as the heating medium for another effect in which boiling takes place at a lower temperature and pressure. Another method of increasing the utilization of energy is to use a Thermo Compression evaporator, in which the vapor is compressed so that it will condense at a temperature high enough to permit its use as the heating medium in the same evaporator. This type is also called a MVR or mechanical vapor recompression.

Types of Evaporators

Short tube vertical evaporators are natural circulation evaporators. These units consist of short tubes 4-6 feet long and 2” to 4” in diameter set between two horizontal tube sheets that span the evaporator body diameter. The tube bundle contains a large circular down comer that returns concentrated liquid above the top tube sheet to below the bottom tube sheet for product withdrawal. The driving force for flow of liquid through the tubes is the difference in density between the liquid in the down comer and the tubes.

Long tube vertical evaporators accomplish more evaporation than in all other types combined. They are also natural circulation evaporators. They are also categorized individually as rising film, falling film, and rising/falling film types. Basically these units consist of a vertical single pass shell and tube heat exchanger discharging into a relatively small vapor head. Tube length is typically12’ to 36’; and the tube diameters are from 0.75” to 2” OD. Units may be once through or recirculating, depending upon the application. Long tube evaporators are the most economical design.

  • Rising Film – feed liquor enters at the bottom of the tube and boils part way up the tube with the mixture of liquid and vapor leaving at the top. As the liquid in the tubes boil the vapor generated from boiling fills the core of the tube forcing the liquid to the side wall. As the liquid moves up the tube more vapor is formed and the remaining liquid thins out and moves more rapidly up the tube increasing the heat transfer coefficients and reducing the residence time
  • Falling Film – feed liquor enters the top of the tube and flows down the tube wall as a thin film. Since the film is moving in the direction of gravity, a finer and faster moving film results, yielding higher heat transfer coefficients and reduced contact times. The flow of vapor and liquid may be co-current in which the vapor-liquid separation takes place at the bottom, or counter-current where the liquid is drawn from the bottom and the vapor from the top

Forced circulation evaporators are made in a variety of arrangements for services where the feed and/or product liquor has a tendency to salt or scale and where the viscosities of the solutions are so high that natural circulation is not feasible. Force circulation is achieved by using pumps. Forced circulation leads to high tube side velocities and higher heat transfer coefficients and smaller heating surfaces. The pump withdraws liquor from the flash chamber and forces it through the heating element back to the flash chamber. Circulation is maintained regardless of the evaporation rate so this type of evaporator is well suited to crystallizing operations where solids must be maintained in suspension at all times.

Thin Film or Wiped Film are agitated evaporators - essentially a large diameter jacketed tube, in which the product is vigorously agitated and continuously removed from the tube wall by scraper blades or wipers mounted on a shaft rotating inside the tube. The material to be processed is continuously spread as a thin film on the tube walls by the mechanical agitator. This permits processing of extremely viscous and heat sensitive materials, as well as products that crystallize. The heating medium may be steam or hot oil on the jacket side.

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