RU2812552C1 - Sprouted grain dryer - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: sprouted grain dryer is intended for drying sprouted grain used as a vitamin supplement in animal and poultry feed. The dryer consists of a drying chamber, a cooling chamber, an upper vibrating sieve with the ability to perform oscillatory movements; a lower vibrating sieve with the ability to perform oscillatory movements is installed inside the cooling chamber, a confuser in the shape of a quadrangular pyramid with a fan suction pipe, the discharge pipe of the fan is directed above the lower sieve and comprises a filter drier, a fire plate is installed below the upper sieve, under which there is a gas burner and is intended for heating atmospheric air, next to the fire plate there is a suction port for supplying air to the drying chamber, on the end side of the drying chamber there is a guide pipe to set the direction movement of sprouted grain from the upper sieve to the lower sieve; a hopper is located between the lower sieve and the outlet window.

EFFECT: sprouted grain dryer ensures high uniformity of drying of sprouted grain.

1 cl, 1 dwg

Description

The sprouted grain dryer relates to agriculture and is intended for drying sprouted grain used as a vitamin supplement in animal and poultry feed.

A device for drying grain is known [RU 2411432 CI F26B 17/04 (2006.01), 02/10/2011], containing a casing of rectangular cross-section, the surface of which is covered with a layer of heat-insulating material, a loading hopper, an unloading window, heating elements, as well as a cooling device consisting of fan and air duct.

The disadvantage of this device for drying grain is the presence of a large number of heating elements and the difficulty of turning the grain during drying.

A known conveyor installation for drying sprouted grain [RU 2529704 C2, B02B 5/00 (2006.01) F26B 17/04 (2006.01), 09.27.2014.], consisting of a drying and cooling chamber, in each of which a perforated tape is installed, an air duct for supply of exhaust gases from the boiler room under pressure, a loading hopper with a grinding device.

The disadvantage of this installation is the high energy consumption spent on grain drying and low efficiency.

The closest analogue is a sprouted grain dryer [RU 2788274 CI F26B 17/04 (2006/01) F26B 20/00 (2006/01), 01/17/2023], consisting of a housing, a heat exchanger, a cylinder, a hopper, a screw dispenser, and infrared lamps, lower conveyor belt, middle conveyor belt, upper conveyor belt, support rollers, plow levelers, drying chamber, thermal insulation, filter-driers.

The disadvantage of this installation is the insufficiently uniform distribution of infrared radiation over the surface of the sprouted grain; the sprouted grain is blown only from above; the lower layers are not blown with the drying agent. High consumption of drying agent in the drying chamber. High metal consumption and large overall dimensions. The possibility of turning the dried mass only when transferring from the upper conveyor to the lower one.

The objective of the invention is to ensure high uniformity of drying of sprouted grains through the use of rectangular infrared heaters, reducing the consumption of the drying agent by blowing it through the sprouted grains, reducing the overall dimensions and metal consumption of the dryer through the use of two sieves, the possibility of completely turning the sprouted grains due to the use of vibration mechanisms, increasing the drying speed by ensuring reduced pressure in the drying chamber.

At the same time, the sprouted grain is accumulated in the bunker. A dosing valve is installed at the bottom of the hopper. A gravity feed is mounted below the metering valve. The dryer is made of a drying chamber, which is located in the upper part and a cooling chamber located in the lower part. A confuser is installed on top of the drying chamber, which is made in the shape of a quadrangular pyramid. Inside the drying chamber there is an upper sieve, which is equipped with a vibration mechanism. Inside the cooling chamber of the chamber there is a lower sieve, which is equipped with a vibration mechanism. The fan suction pipe is installed in the upper part of the confuser. The fan discharge pipe is directed above the lower sieve. A filter-drier is installed on the fan discharge pipe, which is designed to remove moisture from the air. Below the upper sieve there is a hot plate, under which there is a gas burner. A pipe is made to supply gas to the burner. Next to the heat plate there is a suction window through which air is supplied to the drying chamber. An outlet window is installed next to the lower sieve, which is designed to remove air from the cooling chamber. At the end side of the drying chamber there is a guide pipe, which is designed to set the direction of movement of the sprouted grain from the upper sieve to the lower sieve. A hopper is located between the lower sieve and the outlet window.

The operating principle of the sprouted grain dryer will be clear from the following description and the attached drawing.

In fig. Figure 1 shows a general view of the sprouted grain dryer.

The sprouted grain dryer (Fig. 1) consists of a frame 1 on which assembly units are attached. In bin 2 the sprouted grain is accumulated. A metering valve 3 is installed in the lower part of the hopper 2. A gravity feed 4 is mounted below the metering valve 3. The sprouted grain dryer is made of a drying chamber 5, which is located in the upper part and a cooling chamber 6, located in the lower part. On top of the drying chamber 5 there is a confuser 7, which is made in the shape of a quadrangular pyramid. An upper sieve 8 is installed inside the drying chamber, which is equipped with a vibration mechanism 9. The upper sieve 8 is designed to perform oscillatory movements. Above the upper sieve 8 there are infrared ceramic lamps 10, which are made of a rectangular shape. Inside the cooling chamber 6 there is a lower sieve 11, which is equipped with a vibration mechanism 12. The lower sieve 11 is configured to perform oscillatory movements. In the upper part of the confuser 7 there is a suction pipe 13 of the fan 14. The fan 14 is designed to create a reduced pressure in the drying chamber 5. The discharge pipe 15 of the fan 14 is directed above the lower sieve 11. A filter drier 16 is installed on the discharge pipe 15 of the fan 14. 16 is designed to remove moisture from the air that is supplied to cool the sprouted grain. Below the upper sieve 8 there is a hot plate 17, under which there is a gas burner 18. Pipe 19 is designed to supply gas to the gas burner 18. The hot plate 17 is designed to be able to heat atmospheric air. Next to the hot plate 17 there is a suction window 20, which is designed to supply air to the drying chamber. An outlet window 21 is installed next to the lower sieve 11, which is designed to remove air from the cooling chamber. At the end side of the drying chamber there is a guide pipe 22, which is designed to set the direction of movement of the sprouted grain from the upper sieve 8 to the lower sieve 11. Between the lower sieve 11 and the outlet window 21 there is a hopper 23.

The sprouted grain dryer works as follows.

The sprouted grain is poured into the hopper 2, which, using the metering valve 3, is sent by gravity 4 and then to the upper sieve 8. The vibration mechanism 9 vibrates the upper sieve 8, due to which the sprouted grain is distributed on the upper sieve 8. Infrared ceramic lamps 10 heat the sprouted grain grain located on the upper sieve 8. Using a pipe 19, gas is supplied to the gas burner 18, which burns and heats the fire plate 17. The fan 14 creates a reduced pressure in the suction pipe 13 and in the drying chamber 5. Due to this, the air that is supplied through the suction window 20, above the hot plate 17, is heated and directed through the holes of the upper sieve 8 and the sprouted grain that is located on it. Warm air is used to heat the upper sieve 8, which is used to heat the sprouted grain. By heating the sprouted grain with infrared ceramic lamps 10, the moisture contained in it is raised to the surface. Fan 14 creates movement of the drying agent, thereby removing moisture from the surface of the grain. Due to the reduced pressure in the drying chamber 5, the removal of moisture from the surface of the sprouted grain occurs more intensively. As necessary, using vibration mechanisms 9, the sprouted grain is turned on the upper sieve 8, thus removing moisture from all the sprouted grain more evenly. After drying using a vibration mechanism 9, the sprouted grain is fed into the guide pipe 22 and then onto the lower sieve 11. The distribution of the sprouted grain on the lower sieve 11 is carried out by vibration of the lower sieve 11 using vibration mechanisms 12. Then the fan 14 supplies air to the filter drier 16 , then into the discharge pipe 15 and into the cooling chamber 6 onto the sprouted grain, which is located on the lower sieve 11. After cooling the sprouted grain, the sprouted grain is unloaded into the hopper 23 using vibration mechanisms 12.

This sprouted grain dryer ensures high uniformity of sprouted grain drying due to the use of rectangular infrared heaters, reduced consumption of the drying agent due to its blowing through the sprouted grain, reduction in overall dimensions and metal consumption of the dryer due to the use of two sieves, the possibility of complete turning of the sprouted grain in through the use of vibration mechanisms, increasing the drying speed by ensuring reduced pressure in the drying chamber.

Information sources

1. RU 2411432 CI, F26B 17/04 (2006.01). Device for drying grain / V.I. Kurdyumov, A.A. Pavlushin, S.A. Sutyagin - 2009137120/06; Stated, 10/07/2009; Publ. 02/10/2011.

2. RU 2529704 C2, B02B 5/00 (2006.01), F26B 17/04 (2006.01). Conveyor installation for drying sprouted grains/S.A. Bulavin, Yu.V. Saenko, A.Yu. Nosulenko, V.N. Saenko - 2013100548/13; Declared 01/09/2013; Publ. 09/27/2014.

3. RU 2788274 CI F26B 17/04 (2006.01), F26B 20/00 (2006.01), F28D 7/00 (2006.01), F26B 17/04 (2022.08), F26B 20/00 (2022.08), F28D 7/00 ( 2022.08) Dryer of sprouted grain./Vendin S.V., Saenko Yu.V., Martynov E.A., Strakhov V.Yu., Okunev A.F., Bayramov R.Z., Putienko K.N. - 2022106785; Declared 03/15/2022; Publ. 01/17/2023.

Claims (1)

A sprouted grain dryer, consisting of a drying chamber and a cooling chamber; inside the drying chamber there is an upper sieve, which is equipped with a vibration mechanism; making oscillatory movements, a confuser is installed on top of the drying chamber, which is made in the shape of a quadrangular pyramid, a fan suction pipe is installed in the upper part of the confuser, the fan is designed to create a reduced pressure in the drying chamber, the fan discharge pipe is directed above the lower sieve, a filter is installed on the fan discharge pipe - a dehumidifier, which is designed to remove moisture from the air, a fire plate is installed below the upper sieve, under which a gas burner is located, a pipe is designed to supply gas to the burner, the fire plate is designed to allow heating of atmospheric air, a suction window is located next to the fire plate, which designed to supply air to the drying chamber, an outlet window is installed next to the lower sieve, which is designed to remove air from the cooling chamber, on the end side of the drying chamber there is a guide pipe, which is designed to set the direction of movement of the sprouted grain from the upper sieve to the lower sieve , between the lower sieve and the outlet window there is a hopper.

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