SU1449803A1 - Drier for products - Google Patents

Abstract

Invention m. used in agricultural production, food and vegetable drying industry for sugaki fruits, vegetables and herbs. The purpose of the invention is to improve the quality of drying and the economical operation of the dryer. The dryer chamber has a perforated transport perpendicular to each other (Л с: Cх: фi.2.1

Description

Terra 2 and is divided by a vertical partition into two compartments with connections for supplying and discharging coolant, and a horizontal partition into the zones of drying and drying. The dryer has a fan, heaters 15 and devices for loading and unloading products, a refrigeration unit 6. A vertical partition 16 is additionally installed in the finishing area, dividing it into drying and cooling zones. At the outlet of each compartment, a fan is installed, which is connected by a suction side to the nozzle of the heat carrier, and the discharge side in one compartment to the drying area, and in the other to the cooling zone to form

two circulation circuits 7 and 8 In one circuit, along the coolant flow path, an evaporator 11 and a condenser 13 of a refrigerating machine are installed, and in the other, an evaporator 12. Heaters 15 m. installed at the entrance to the zones of drying and drying. In the drying zone, the material is blown by a stream of circulating drying agent dried in the evaporators 11 and 12 and reheated in the condenser 13 and the heater 15, which ensures the quality and long-term storage of the finished product. The material is then blown through a dried and cooled coolant. 1 hp f-ly, 3 ill.

The invention relates to a drying technique and can be used in agricultural production, writing, vegetable and vegetable drying, and mainly for drying fruits, vegetables and herbs.

The purpose of the invention is to increase the efficiency of work and improve the quality of the sutak-i.

Fig. 1 shows a dryer, a total vd, longitudinal section; FIG. 2, section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The dryer contains a chamber 1 with belt conveyors 2 arranged one above the other, a separating gas-tight horizontal partition 3, an upper vertical partition 4, an air distribution manifold 5, a refrigeration machine 6 and circuits 7 and 8 of heat carrier circulation with installed 9 and 10 fans, an evaporator mi 11 and 12 holbdilnoy machine condenser

13, gas distribution grid

14, the heaters 15 and the lower vertical partition 16.

The dryer works as follows:

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Raw material is loaded into chamber 1 through a loading device.

and enters the conveyor belts 2. Moving from the compartment to the compartment with the help of a conveyor located in the drying zone B, the material is sequentially blown with a flow of heat-transfer fluid with parameters and dried.

In this case, the material in the compartment associated with the circulation circuit 7 has different moisture characteristics. On the lower conveyor of this compartment the material is dried up, and on the upper one it is wet. Therefore, the temperature of the coolant in this compartment is chosen based on the permissible heating temperature of the material on the bottom tape.

In the next compartment, the material on the lower and upper tapes is close in moisture content, which predetermines the choice of the temperature of the heat transfer medium for this compartment, i.e., the temperature difference between the heat transfer compartments and the entire drying process can be significantly intensified.

In the drying zone D, the material is blown by a stream dried in the evaporators II and 12 and reheated in the condenser 13 and the heater 15 circulating drying agent, which ensures the preservation of quality

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Claims (2)

The claims 20 I. Dryer for products, mainly agricultural production, containing a chamber with perforated belt conveyors 25, separated by a vertical partition into two compartments with nozzles for supply and removal A • hepatosilane, a horizontal partition on the zones of drying and drying, fan, heaters and devices for loading and unloading products, characterized in that, in order to improve the quality of drying and economy of work, it additionally contains a refrigeration unit, and in the zone of drying a vertical partition is installed, dividing it into zones of drying and cooling, while at the outlet of each compartment a fan is installed, connected by the suction side to the coolant outlet pipe, and the discharge side noy - in one compartment to the drying zone, and in the other to the cooling zone with the formation of two circulation circuits, while in one of them along the flow of the coolant the evaporator and condenser of the refrigeration machine are installed, and in the other only the evaporator. 2. The dryer according to π. 1, characterized in that the heaters are installed at the entrance to the zone of drying and drying. The rebound of figure 1. condensate 6-6 Fig.Z