RU2782273C1 - Apparatus for drying plant-based products and mushrooms - Google Patents

Abstract

FIELD: drying.

SUBSTANCE: invention relates to food engineering and can be used for drying plant-based products and mushrooms. The device has a modular structure of interchangeable working chambers of the same standard size, installed and secured by tightening by bolting. The minimum configuration is 2 modules. Any number of additional modules may be connected. In addition to the IR and UHF heating, fans are installed in the module to ensure convective airflow on the surface of the dried products in the direction opposite to the movement thereof.

EFFECT: possibility of accelerating the process of drying raw materials.

2 cl, 2 dwg

Description

The invention relates to food engineering and can be used for drying vegetable products and mushrooms.

A patent is known for a conveyor dryer with IR heating (RU 2657076 C1, IPC F26B 17/04, F26B 3/30, publ. 06/08/2018, bull. No. 16). Containing a drying chamber with a conveyor, a pressure box installed above the drying chamber, suction boxes, a fan, an IR emitter, an automatic radiation power control system, a control system, a hopper-batcher, characterized in that, to reduce energy consumption, an IR emitter is installed only in the zone drying zone, and the post-drying zone is equipped with an air duct with a flow fan for supplying heated air from the drying zone.

The disadvantage is longer drying of raw materials due to the use of only IR emitters, the lack of heat equalization between the beginning and end of the device structure and the exclusion of the possibility of overheating of raw materials due to lack of blowing.

The closest in technical essence to the proposed invention is a combined conveyor microwave installation "Hot Stream" company GreenPower.

The disadvantage of this installation is its design, the apparatus has large dimensions. The overall dimensions of the assembled structure are 9000 × 1000 × 800 mm. In total, one apparatus occupies a production area of 7.2 m ³ . There is no equalization of heat between the beginning and the end of the structure of the apparatus and the exclusion of the possibility of overheating of the raw materials due to the lack of airflow.

The technical objectives of the invention are to speed up the drying process of raw materials by increasing the productivity of the apparatus, ensuring uniformity of heating and eliminating the possibility of overheating of raw materials, as well as increasing the mobility of the structure.

The set technical problems are solved by the fact that the apparatus for drying products of plant origin and mushrooms using IR and microwave heaters has a modular design of interchangeable working chambers of the same size 1000 × 900 × 550 mm, which are installed and fixed by tightening them with bolted connections. The minimum configuration is 2 modules. Additional modules can be connected, the number of connected modules is not limited. In addition to IR and microwave heating, fans are installed in the module for convective blowing of the surface of the dried products in the direction opposite to their movement.

The essential features that affect the claimed technical result are:

- modular design of working chambers of one standard size;

- convective blowing fans located in the direction opposite to the movement of raw materials inside the working chamber.

An apparatus for drying products of plant origin and mushrooms with two connected modules is shown in figure 1. The indicated positions mean the following:

1 - magnetron;

2 - IR emitters;

3 - blower fan;

4 - working chamber of the device;

5 - conveyor belt;

6 - direction of air flow;

7 - the direction of movement of the conveyor belt.

A vertical section of the module of the apparatus for drying products of plant origin and mushrooms is shown in Figure 2.

The indicated positions mean the following:

1 - magnetron;

2 - IR emitters;

3 - blower fan;

4 - working chamber of the device.

The apparatus for drying products of plant origin and mushrooms has a magnetron 1 and IR emitters 2 mounted in the upper part of the working chamber, blowing fans 3 mounted in the front wall of the working chamber along the flow of raw materials on the conveyor belt, directly the working chamber of the device 4 of the same standard size and a conveyor belt 5, which moves the raw material.

An example of the invention on the example of drying porcini mushrooms.

Drying porcini mushrooms in 2 modules;

Overall dimensions of the apparatus, consisting of 2 modules, including a conveyor belt (1000 mm each for input and output from the apparatus): 3000 × 900 × 550 mm.

Mass of white mushrooms - 8 kg;

The power of the magnetron and IR emitters - 3100 W;

Fan power - 60 W;

Drying time for porcini mushrooms in 2 modules - 71 min.

Drying objects are located on the conveyor 5, which moves inside the working chambers 4 of the apparatus of a modular design. In the translational movement, the products are heated in a combined way using a magnetron (MW) 1 and IR heaters 2, while convective blowing by fans 3 of the surface of the dried products occurs in the direction opposite to the movement of the products.

Thus, the claimed apparatus for drying products of plant origin and mushrooms provides an acceleration of the drying process of raw materials by increasing the productivity of the apparatus, uniform heating and eliminating the possibility of overheating of raw materials, as well as increasing the mobility of the structure.

Claims (2)

1. An apparatus for drying products of plant origin and mushrooms, characterized in that it has a modular design, consisting of interchangeable working chambers of the same size, fastened by tightening with bolted joints, and a conveyor belt located inside the working chambers and designed to move raw materials, when in this case, each working chamber is equipped with a magnetron, IR emitters mounted in the upper part of the working chamber and a blowing fan installed on the front wall of the working chamber, and during the drying process, the fan blows convectively the dried products in the direction opposite to their movement along the conveyor line. 2. Apparatus according to claim. 1, characterized in that interchangeable modular working chambers during the drying process can be additionally connected or disconnected to increase mobility.

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