RU2467269C1 - Independent drying unit of high-moisture plant raw material - Google Patents

Abstract

FIELD: heating.

SUBSTANCE: invention refers to the plant raw material drying equipment and can be used in food industry. Independent drying unit for high-moisture plant raw material includes the following: furnace, drying chamber, air ducts; at that, furnace is provided with side shields located above the furnace along its side walls, and equipped with chamber with flue tubes; at that, cold air inlet pipeline is attached to the chamber from below, and hot air outlet pipelines is attached from above; at that, hot air outlet pipeline includes confusor located inside the drying chamber that is arranged above the furnace between side shields and made in the form of a hollow cylinder with internal longitudinal ridges and transverse rings, and hollow cylinder is connected by means of spikes to the shaft fixed on both sides in pivoted bearing assemblies, located inside hollow cylinder, installed obliquely with possibility of changing the obliquity angle and equipped with a drive; at that, upper part of hollow cylinder is equipped with a cover plate with central hole in which an inlet channel is located, and outlet channel is located in lower part of hollow cylinder; at that, shaft drive can be made in the form of a bell crank with a handle.

EFFECT: invention shall provide the design simplification due to creating the independent drying device for high-moisture plant raw material with a manual drive, which is implemented in non-tight drying cylinder by means of active ventilation with proper power unit.

2 cl, 2 dwg

Description

The invention relates to equipment for drying vegetable raw materials and can be used in the food industry.

A known design of a drum dryer (RU 2182295, F26B 11/04, 2002) with a central outlet of the product and coolant containing a rotatable drum with channels and with a hollow central tube placed along its axis, as well as a supply pipe installed at its beginning and end and outlet pipes for coolant.

A disadvantage of the known installation is the impossibility of autonomous operation.

The closest in technical essence and the achieved effect is an autonomous dryer for high-moisture plant materials (RU 2381429, F26B 9/06. BI 4, 2010), containing a drying chamber, a tray for placing the product, pipelines for supplying and discharging the drying agent and a fan moreover, the steam turbine, the centrifugal fan and the generator are arranged in series on the same shaft, the steam turbine is connected by a steam line to the steam boiler, and the centrifugal fan is connected by air ducts to the drying chamber and the furnace, while on the fumes th pipe installed bypass valve, passing through the chimney which is branched into two pipes located horizontally one above the other in the drying chamber, between which is mounted parallel to the mesh tray, a generator provided with a control unit. The electronic control unit is equipped with air flow sensors and a temperature sensor.

The disadvantage of this installation is the design complexity.

The objective of the invention is to simplify the design by creating an autonomous device for drying high-moisture vegetable raw materials with a manual drive, implemented in an unpressurized drying cylinder by means of active ventilation with its own energy unit.

The technical result is achieved by the fact that the stand-alone device for drying high-moisture vegetable raw materials contains a firebox, a drying chamber, air ducts, the firebox made with side shields located above the firebox on its side walls, and equipped with a chamber with heat pipes, while the duct is fixed to the chamber from below cold air inlet, and on top the hot air outlet duct, while the hot air outlet duct includes a confuser located inside the drying chamber, which is located above the furnace th between the side shields and is made in the form of a hollow cylinder with internal longitudinal ridges and transverse rings, and the hollow cylinder is connected by spokes to a shaft fixed on both sides of the pivotally-bearing assemblies, which is located inside the hollow cylinder, mounted obliquely with the possibility of changing the angle of inclination and equipped with drive, the upper part of the hollow cylinder is provided with a cover with a central hole in which the receiving tray is located, and the exhaust tray is located in the lower part of the hollow cylinder, and the shaft drive full in the form of a crank with a handle.

Figure 1 shows a diagram of the device (General view), figure 2 is a cross section in figure 1.

The device comprises a furnace 1 with a chimney 2, a hollow cylinder 3, an air duct of cold 4 and hot 5 air, moreover, the furnace 1 is made with side shields 6 located above the furnace 1 along its side walls, and is equipped with a chamber with heat pipes 7, while a cold air inlet duct 4 is fixed to the chamber below, and a hot air outlet duct 5 is attached to the top, while the hot air outlet duct 5 includes a confuser 8 located inside the drying chamber 3, which is located above the firebox 1 between the side shields 6 and is made in the form of the hollow cylinder 3 with internal longitudinal ridges 9 and transverse rings 10, while the hollow cylinder 3 is spokes 11 connected to a shaft 13 mounted on both sides of the pivotally-bearing assemblies 12, which is located inside the hollow cylinder 3, mounted obliquely with the possibility of changing the angle of inclination and provided with a lanyard 14, while the upper part of the hollow cylinder 3 is provided with a cover 15 with a central hole in which the receiving tray 16 is located, and in the lower part of the hollow cylinder 3 there is an exhaust tray 17, and the shaft drive is made in the form of ivoshipa with the handle 18.

The device operates as follows.

In firebox 1, firewood is kindled. Smoke passes between the chimneys 7 and exits into the chimney 2. The heated air from the chimneys 7 through the duct 5 through the confuser 8 enters the hollow cylinder 3, into which, on the other hand, high-moisture plant material is loaded using the receiving tray 16 through the hole in the front cover 5. Rotating the handle 18 of the shaft 13, which, rotating in the pivotally-bearing assembly 12, rotates the hollow cylinder 3 with the help of knitting needles 3. The plant material is poured with the help of ridges 9 and is retained on the rings 10, uniformly distributed throughout the entire volume of the hollow qi Lindra 3. The location of the confuser 8 inside the drying chamber - the hollow cylinder 3 provides an increase in the air velocity inside the drying chamber and a more uniform distribution of the temperature field. As the flow of hot air into the flame tube 7, cold air enters through the duct 4. The inclined arrangement of the drying chamber 3 during its rotation provides movement of the drying object along the drying chamber, while the longitudinal ridges 9 provide the lifting of the drying object and its falling to the exit of the drying chambers 3, and the transverse rings 10 slow down the movement to the exit of the drying object and unload it into the outlet tray 17. Change the speed of rotation of the shaft 13 of the drying chamber 3 and change the angle of inclination using the turnbuckle 14 they determine the time spent by the drying object inside the drying chamber 3. The shields 6 provide washing of the drying chamber 3 with hot air from the furnace 1 and its more uniform heating. The inclined location of the drying chamber 3 provides the movement of air inside it due to the difference in the specific gravities of cold and hot air.

The autonomy of the device allows you to use this device directly at the place of collection of raw materials, significantly reducing the cost of transportation of raw materials.

Claims (2)

1. A self-contained dryer, including a furnace, a drying chamber, air ducts, characterized in that the furnace is made with side shields located above the furnace along its side walls, and is equipped with a chamber with heat pipes, and a cold air inlet duct is fixed to the chamber below, and on top is a hot air outlet duct, while the hot air outlet duct includes a confuser located inside the drying chamber, which is located above the firebox between the side shields and is made in the form of a hollow cylinder with an internal them longitudinal ridges and transverse rings, while the hollow cylinder is connected by spokes to a shaft fixed on both sides of the pivotally-bearing assemblies, which is located inside the hollow cylinder, mounted obliquely with the possibility of changing the angle of inclination and provided with a drive, while the upper part of the hollow cylinder is provided with a cover with a central hole in which the receiving tray is located, and an exhaust tray is located at the bottom of the hollow cylinder. 2. The stand-alone dryer according to claim 1, characterized in that the shaft drive is made in the form of a crank with a handle.

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