In an evaporator handling an aqueous salt solution, the overall coefficient U (kW/ m2 deg K) is .. these. Figure shows the flow and plate arrangement of an APV falling-film plate .. MINTON, P. E.: Handbook of Evaporation Technology. This Handbook describes the many types of evaporators and operating options manufacturing capabilities of companies within the APV Group. oncentration. This handbook describes the paraflow and its operating principle, The paraflow is the original plate type heat exchanger designed by APV to provide.

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The characteristics of the formed agglomerate can be influenced by operating conditions such as binder liquid rate, fluidizing velocity and temperature. Due to its ability evaorator produce a uniform powder at relatively low temperatures, the spray dryer is probably the most common of these dryers.

Other protein-rich products such as whey powder in dietary supplement and milk including both evqporator and whole milk are concentrated to remove most liquid components for further processes. To correct the seal, the metal face must be bent towards the silicone seal.

This complete system would make an ideal finisher, test evaporator, a pilot plant evaporation system or an evaporation system to do small quantities of highly valuable or low ph product. If not, repeat previous steps with different assumption of steam flow into the first effect.

The uniqueness of the EvapoDry lies in the cylindrical, cone-bottomed solution tank. The simplest method is to use a graduated hot bench, but this tends to dry the powder during the test.

It is ready for immediate reassembly. Future development compromises installing large number of steam effects and recycle the steam where possible for better energy efficiency. Insulation; 16 gauge painted exterior tank height 36 in. On the smaller inspection doors, a special tool can be procured from APV. It could be used as a finisher for a larger pre concentrator system. Powder deposits can be another indication of a leak, which should be corrected. Essence recovery system and Union psi ball valve homogenizer.


Continuously APV, W. Number of titanium plates: It also must be remembered that to be suitable for spray drying, the feed must be in pumpable condition. In a multi-effect evaporator, the vapor output of one phase of the evaporator is recycled as the heating medium for the next phase, reducing the overall consumption of steam for the evaporator. In evaporrator a film plate evaporator, the use of superheated evaporatlr needs to be controlled in order to prevent nucleate boiling.


When this material is dried in a conventional unit, the cycle time is in the region of 28 hours. The wet feed material, typically filter cake, is dropped into the feed vat 1 where the low speed agitator 2 breaks up the cake to a uniform consistency and gently presses it down into the feed screw 3. If the ambient humidity is low, the chamber usually runs clean — but high humidity conditions can rapidly lead to chamber deposits and lumps which can frequently force a plant to be shut down for cleaning.

Since the evaporator is mainly used in processes dealing with heat-sensitive materials, the residence time should be kept as low as possible. In order to avoid nucleate boiling, the liquid superheat should be in the range of 3 to 40 K depending on the liquid used.


The vapor vessel is set up to handle one more jacketed eevaporator heat exchanger which would increase the water evaporation rate to pounds per hour and should be able to accomodate one more that would increase the water evaporation rate to pounds per hour. We have gone through it and repaired any problem that we found.

Circulation evaporator

Abrasion resistant radial Figure 31b. A condenser can be used in the recirculation loop to condense some water vapor, but the heat can only be recovered at low temperatures. The vapor stream is evaporafor out of the liquid stream. Stainless steel balance tank – 14 gallon, dimensions: Overall dimensions 7 ft. If two cone inserts are available, install the smaller diameter insert for these powders. Therefore, it is important to minimize the volume of inlet gas used to input the heat and carry over the steam that is generated.

It is well known, however, that agglomeration in most instances will improve the redispersion characteristics of a powder. While the power requirements of each is usually well in excess of other dryers — due to the use of high efficiency product recovery systems — the small size of the fluid bed dryer compared with conventional rotaries, and the fact that the flash dryer can be arranged to fit in limited floor space, makes them attractive.

As a further illustration of the desirability of using a preforming technique, testing of a designated material exhibited a mean evaporative rate of 1. S-line, 1 3 in.