Used evaporators for sale: efficient separation for solvent recovery and product concentration

Type: Evaporator

Subtype: Rising/Falling Film

Manufacturer: APV

Condition: Used

Material: Stainless Steel 316

Pressure: 10 bar (145 psi)

Temperature: 104 °C (219.2 °F)

98.6% water evaporation 4-effect falling film evaporator system Designed by Fritz Voltz sohn feed rate 3.4m3/hr, product 1.3 m3/hr Feed to 1st evaporator is 3.4 m3/hr @ 34.8% concentration and @ 104 deg C vacuum @ 4th evaporator 130 mbar Evaporator concentrations are: 1st = 42.1% @ 116 deg C 2nd = 55.8% @ 107 deg C, 3rd = 91.3% @ 81 deg C, 4th = 98.6% @ 98 deg C System consists of: (3) 46 square meter 316 stainless steel tube, head and shell falling film evaporator (1st , 2nd, 3rd effects), manufactured by APV, design pressure tubeside 0.69 bar + full vacuum @ 130 degrees C, shell 3.10 bar + full vacuum @ 140 degrees C, working pressure tubeside 0.207 bar @ 120 degrees C, shell 2.07 bar @ 130 degrees C, (44) 50mm diameter x 18 SWG X 7m long 316 stainless steel tubes, 316 stainless steel tube sheets, 560mm diameter 316 stainless steel shell with expansion joint, (1) 316 stainless steel bonnet head, (1) bolt dished bottom head, mounted on a carbon steel skirt (1) 6 square meter 316 stainless steel tube, head and shell falling film evaporator (4th effect), manufactured by APV, design pressure tubeside 2.5 bar + full vacuum @ 150 degrees C, shell 2.5 bar + full vacuum @ 150 degrees C, (14) 44mm diameter x 16G x 3.5m long 316 stainless steel tubes, 323.9mm diameter 316 stainless steel shell with expansion joint, 4295mm overall height, (1) 316 stainless steel flat bonnet head, (1) weld coned bottom, effect attached on top of a 720 liter 316 stainless steel vertical pressure separator/tank, manufactured by APV, design pressure 2.5 bar + full vacuum @ 250 degrees C, 792mm diameter x 1.5m straight side, weld dished top and bottom, mounted on legs (3) approx 600 liter 316 stainless steel vertical separators, manufactured by APV, design pressure 10 psig + full vacuum @ 130 degrees C, 775mm diameter x 1219mm straight side, weld slight coned top, weld coned bottom, (1) 10.6 square meter 316 stainless steel tube and shell horizontal condenser (1st stage), manufactured by APV, design pressure tubeside 2.5 bar + full vacuum @ 150 degrees C, shell 2.5 bar + full vacuum @ 150 degrees C, (34) 25mm diameter x 16G x 4m long 316 stainless steel tubes, (2) 316 stainless steel flat heads, 406mm diameter 316 stainless steel shell, 4.5m overall length, mounted on saddles (1) 11 square meter 316 stainless steel tube and shell horizontal condenser (2nd stage), manufactured by APV, working pressure tubeside 2.07 bar @ 35 degrees C, shell -0.9 bar + full vacuum @ 50 degrees C, (76) ¾” x 18 swg x 4145mm long 316 stainless steel tubes, (2) 316 stainless steel flat heads, 300mm diameter 316 stainless steel shell, overall length 4523mm, mounted on saddles, (3) approx 132 liter 316 stainless steel vertical pressure tanks (flash vessel), manufactured by APV, design pressure 2.5 bar + full vacuum @ 150 degrees C, 400mm diameter x 750mm straight side, bolt dished bonnet head, weld dished bottom, mounted on legs Process operation The first 3 evaporators are falling film and tube (shell & tube) evaporators, where the product flows up and down through a series of tubes which are surrounded by a heating medium, steam @ 1.8 bar is used as the heating medium The hot liquid from each evaporator is fed to its associated “separator” in which the vapour separates from the liquid and is drawn off, The 4th evaporator uses a “once-through” falling film concentrator, the unit is similar to that of a shell & tube heat exchanger except that the product falls down the unit through a number of pipes which are surrounded by a heating medium, steam @ 1.8 bar is used as the heating medium, Vacuum @ 130mbar is applied to the 4th evaporator, which draws the vapour through the first 4 evaporators. After the 4th evaporator the product is fed through a heat exchanger, where it cools the product to between 50 deg C and 70 deg C, water is used as a cooling medium, from there the product goes to storage tanks (not available)

Vacuum: Yes.

Type: Evaporator

Subtype: Rising/Falling Film

Condition: Used

Evaporation Rate: 18,144 kg/h (40,000 lb/h)

falling film evaporator with mechanical vapor recompression, part of a Zero Discharge System (ZLD). The Evaporator includes the following major components: the evaporator, a circulation pump, a compressor, the deaereator, a distillate system, the feed heaters, and associated pumps. Each evaporator shares a common feed tank and seeding system. This evaporation system was previously used in a Zero Discharge System by a major Utility company. It was designed and engineered by Bechtel, and utilizes a seed-slurry process to maintain heat transfer tubes in a scale controlled manner. The process has been maintained in excellent shape.

• The main evaporator (Plant # BC-1/2) is a Model 130T designed by RCC and manufactured by Plant Maintenance Services, and has 13,000 square foot of surface area in the tube section. The construction Alloys are Titanium, AL6XN, and 316 SS. The design conditions for the condenser shell are 8 psig internal and 2 psig external at 250 degrees F. The condenser tubes are rated for full flooding and 8 psig external at 250 degrees F. The floor and sump are rated for full flooding and 2 psig at 250 degrees F. The evaporators dimensions are 88" OD at the condenser, 106" OD in the mid section and 134"OD at the sump/skirt. Overall height is 54' 11". The unit is skirt mounted. The tubes are 2" OD x 0.028" wall thickness x 24' long with a titanium top tube sheet and a AL6XN bottom tube sheet. The vessel includes two 30" manway for top and side access, and structural steel with stairs and platforms. *The recirculation pump(Plant # P-034-A/B) is an AC/ITT single stage, open impeller, horizontal centrifugal pump. It is a model # 150, size 14 x 12 x 21 PWO, with packing on the main shaft. It is rated for 5000 GPM at 40' TDH. The material of construction is Austenitic SS (CD4MCU). It is a base mounted direct coupled pump, driven by a 75 HP AC motor. The motor is rated for 60 Hz, 3 ph, TEFC with a 497 T frame. Mechanical Vapor recompression is provided by a Roots centrifugal blower( Plant # C-002-A/B), in a skid mounted package with an electrical driver. The blower is a Type 360IB, serial # HA3352. It is rated for 1233 lbs./minute, with an inlet volume of 30,003 ACFM, at 14.82 psi, with a specific gravity of 0.622. The inlet temperature is rated for 217 degrees F and the discharge pressure is 20.2 psi. It operates at 7309 RPM. It has a Lufkin gear increaser, and is driven by a Siemens 1000 HP ac motor. The motor is rated for 3/60 1460 volts. The skid mounted unit includes controls, oil system, and oil cooler.

Type: Evaporator

Subtype: Rising/Falling Film

Condition: Used

Material: Stainless Steel 304

Evaporation Rate: 7,257 kg/h (16,000 lb/h)

double effect evaporation system. See video of system operating at http://www.youtube.com/watch?v=Y6J52r-maPE. Capacity based on a brine stream at 24% to 50% strength. Feedstock of 32,000 lbs/hr(normal operating) or up to 50,000 lbs./hr. brine at ~ 20-25% NaBr is sent to the first effect, where it is strengthened to ~ 35% NaBr. The steam generated from this effect is used for heating on the second effect. Final target for brine leaving the second effect is 45-50% NaBr. The first effect (IPP Stock # 216077) (drum type)t is 2,000 gallon, and is manufactured by Paget. With a 400 sq.ft. "U" tube heater, this unit is operaing at 310 degrees F using 150# steam. The second effect is a modular, forced circulation system, designed by Swenson and manufactured by Four Corp. This effect is operating at atmospheric pressure and using the steam generated from the first effect to heat the second effect 838 sq. ft shell and tube heater(reboiler, IPP Stock # 216082). Overheads are condensed (IPP Stock # 216085). Product at ~ 50% NaBr is sent to storage. Circulation is acheived by a Goulds 6,000 gpm centrifugal pump. The first effect is a stand alone unit, the second effect is a modular system with all equipment mounted with in it's own framework. Instrumentation by Rosemount.

Type: Evaporator

Subtype: Rising/Falling Film

Manufacturer: Buflovak/Blaw Knox

Model: x-320 steam chest

Condition: Used

Material: Stainless Steel 316

Evaporation Rate: 6,765 kg/h (14,915 lb/h)

Total Heat Transfer Surface Area: 262.6 m² (2,827 ft²)

Orientation: Vertical. Pressure: 8.3 bar (120 psi). Temperature: 148.9 °C (300 °F). Vacuum: Yes. Number of Effects: 2. Vapor Body #1: 316 SS 36" OD x 102 " SS, lug Mounted Print weight 1400 lbs.. Vapor Body # 2: 316SS 42" OD x 102" SS, lug mounted Print weight 2000 lbs.. Steam Chest #1: 903 Sq.Ft. 316 SS tubes and tube sheets, CS shell. 36" OD x 319" OAL . 116 straight tubes, 1.5"OD x 239" Vertical lug mount.. Steam Chest # 2: 1924 Sq.Ft. 316 SS tubes and tube sheets, CS shell. 34" OD x 333" OAL 245 1.5" tubes 0.049" wall x 20' long. Vertical lug mount.. Condenser: 900 Sq.Ft. 316 SS tubes, tube sheets and heads, CS shell. 30" OD x 137" OAL, 430 straight tubes 1" OD x 0.049" wall x 8' long Horizontal saddle mounted.. Feed Heating: 316 SS plate & Frame Alfa Laval 27 Sq.Ft. & 51 Sq.Ft..