RU2524265C1 - Device for drying flax rolls - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: device for drying flax rolls comprises a hollow cylinder with holes, which are uniformly arranged by height and diameter, a cone for piercing the roll and an air duct for a heat-carrying agent supply. A pin with an external thread, on which a piston is installed on one side, on the inner diameter of which the thread is made, and the pin through the coupling is connected to the electric motor shaft on the opposite side, is installed inside the hollow cylinder over its entire height. In central parts of roll zones at an equal distance from each other, humidity sensors are installed, in this case signals from the humidity sensors and a setting device are delivered to a control unit, electrically coupled to the electric motor.

EFFECT: improvement of the efficient use of the heat-carrying agent and uniformity of drying the flax rolls.

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Description

The invention relates to the field of agricultural engineering, and in particular to devices for drying and drying flax trusts, flax straw and other agricultural materials in the form of rolls.

Known dryer rolls of crops according to A.S. USSR No. 1764563, cl. A01F 25/08, comprising a platform with windows, a coolant supply system connected to a vertically taper pin facing upward, a lid mounted for vertical movement, and a hollow shell provided with additional conical pins mounted perpendicularly to the main conical pin on the hollow shell with the possibility of regulation of their position on the outer side of the shell, and the main conical pin is mounted with the possibility of vertical movement. Additional conical pins are installed in the shell by means of sealing cuffs.

The disadvantages of this dryer are the design complexity, high metal consumption, high probability of damage to the dried material, in particular flax, with additional conical pins, inefficient use of the coolant.

Closest to the claimed device is a device for drying rolls of flax according to the patent of the Russian Federation No. 49826, class. D01B 1/48, containing a hollow cylinder with holes, a cone for piercing a roll on which holes are uniformly placed in height and diameter, and an air duct for supplying coolant.

The disadvantages of this device is the uneven drying of the flax roll in height and inefficient use of the coolant.

The uniformity of drying the flax roll is difficult to ensure for two reasons: first, the coolant, having inertia, at the exit from the distributor has different speeds and pressures at the beginning and at the end of the dispenser (at the end they are larger); second, the density of bale pressing in its various parts is different in view of the fact that the flax stalk has an overhang, as a result, the heat carrier rushes along the path of least resistance, that is, into the zone of lowest density.

The problem solved by this invention is to increase the efficiency of use of the coolant and the uniformity of drying of rolls of flax.

The problem is solved due to the fact that the device for drying rolls of flax containing a hollow cylinder with holes that are evenly spaced in height and diameter, a cone for piercing a roll and an air duct for supplying coolant, differs in that it is installed inside the hollow cylinder along its entire height a rod with an external thread, on which a piston is mounted on one side, a thread is made on its inner diameter, and on the opposite side, the rod is connected through a coupling to the motor shaft, while the signals from humidity sensors installed at an equal distance from each other in the central parts of the zones of the roll, equal to each other, and the unit enters the control unit, electrically connected to the electric motor.

New significant features:

1. inside the hollow cylinder, over its entire height, a rod with an external thread is installed on which a piston is installed on one side, the thread is made on the inner diameter of which;

2. on the opposite side, the rod through the coupling is connected to the shaft of the electric motor;

3. signals from humidity sensors installed at an equal distance from each other in the central parts of the zones of the roll, equal to each other, and the master enters the control unit, electrically connected to the electric motor.

The listed new essential features in combination with the known ones are necessary and sufficient to achieve a technical result in all cases to which the requested scope of legal protection applies.

The installation of a rod with an external thread inside the hollow cylinder along its entire height, on which a piston is mounted on one side, and a thread is made on its inner diameter, allows you to adjust the height of the piston and to vary the volume of coolant supplied to different zones of the roll.

Installing an electric motor on the opposite side of the rod allows you to accurately set the supply zone of the coolant.

The installation of humidity sensors zonally height allows you to automate the drying process of rolls of flax, provides objectivity to the drying process and shows the time when it is necessary to move the piston to the next position.

The proposed device is illustrated by drawings:

figure 1 is a schematic illustration of a device for drying rolls of flax;

figure 2 is a block diagram of automatic regulation of drying of rolls of flax.

A device for drying flax rolls comprises a hollow cylinder 1 with holes 2 that are evenly spaced in height and diameter, a cone 3 for piercing the roll, and an air duct 4 for supplying coolant, a rod 5 with an external thread is installed inside the hollow cylinder 1 along its entire height, on which on one side, a piston 6 is installed, on the inner diameter of which a thread is made, and on the opposite side, the rod through the coupling 7 is connected to the shaft 8 of the electric motor 9, while the signals from humidity sensors 10, 11, 12 installed at equal distances and from each other in the central parts of the zones 13, 14, 15 of the roll 19, which are equal to each other, and the setter 16 enter the control unit 17, electrically connected to the electric motor 9.

A sensor 21 for speed and temperature of the coolant 18 is installed on the duct 4. Roll 19 is mounted on the base 20. To prevent leakage of the coolant along the central axis of roll 19, a cover 21 is used. To alert the operator of the completion of the drying process of roll 19, an acoustic signal device 22 is used, electrically connected to control unit 17.

The device operates as follows. In the setter 16, moisture values are entered in the zones 13, 14, 15 of the roll 19 and the height of these zones. Using the electric motor 9 set the piston 6 in the first position, which allows you to send the coolant in the area 13 of the roll 19 (figure 1). After installing the roll 19, it is covered with a cover 21, then moisture sensors 10, 11, 12 are installed and connected to the control unit 17.

The device is turned on and the coolant heated in the air heater block or other heat source (not shown in Fig.) Is pumped into the roll 19 through the openings 4 through the openings 2 of the hollow cylinder 1, removes moisture from the material and is discharged out through the lateral part of the roll 19, and drying takes place material in a roll 19.

According to the readings of the sensor 18, the control unit (not shown in Fig.) Sets the set values of the speed and temperature of the coolant, thereby selecting economical modes of operation of the device depending on the initial moisture content of the material in the roll 19, indicated by humidity sensors 10, 11, 12.

At the beginning, the butt part of the roll 19 is dried, where the roll 19 has the highest density, then after the data of the setter 16 and the humidity sensor 10 match, the control unit 17 sends a signal to the electric motor 9, which sets the piston 6 in the second position - the middle and butt parts are dried, then after the coincidence data setter 16 and humidity sensor 11, the control unit 17 sends a signal to the electric motor 9, which sets the piston 6 in the third position - to dry the entire roll 19.

After the coincidence of the data of the setter 16 and the humidity sensors 10, 11, 12, the control unit 17 gives a signal to the light-sound signaling device 22, which notifies the operator of the completion of the drying process of the roll 19. The operator turns off the device, the moisture sensors 10, 11, 12 and the cover 21 are removed, the roll 21 19 is removed from the device and sent to the finished goods warehouse.

Claims (1)

A device for drying flax rolls containing a hollow cylinder with holes that are evenly distributed in height and diameter, a cone for piercing a roll and an air duct for supplying coolant, characterized in that a rod with an external thread is installed inside the hollow cylinder along its entire height, on which on one side there is a piston, on the inner diameter of which a thread is made, and on the opposite side, the rod is connected through a coupling to the motor shaft, while the signals from humidity sensors installed at equal p Distances from each other in the central parts of the zones of the roll, equal to each other, and the setter enter the control unit, electrically connected to the electric motor.

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