JPS6287780A - Grain drying control method of grain dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 9, χ'1. I'ffl M :'t
Field of the Invention This invention relates to a grain drying control system for a grain dryer.

Conventional technology Conventionally, the work of drying grains involves placing the grains in a dryer, drying the grains stored in the dryer, and discharging the dried grains out of the machine. The dryer is divided into discharge operations, and has a start switch for each operation that starts each part of the dryer for each of these operations.By operating the switch for each operation, each part of the dryer is started according to each operation. The dryer was designed to dry grains in such a way that even if two of these operations were to be performed at the same time, each part of the dryer would not start depending on the two operations.

Problems to be Solved by the Invention When carrying out the work of storing grains in the dryer,
By operating the tensioning work start switch, only the parts of the dryer necessary for the tensioning work are started, the grain is tensioned, and the drying work of drying the grains stored in the dryer is performed. When performing drying, by operating the drying work start switch, only the parts of the dryer necessary for performing the drying work are started, drying the grains, and discharging the dried grains outside the machine. During the discharge work, by operating the discharge work start switch, only the parts of the dryer necessary for the discharge work are started, and the dried grains are discharged outside the machine. The time required for the pitching operation of storing the grains to be dried in the dryer is usually about 30 to 60 minutes. There are 3 in this dryer.
The grains are left to stand for about 0 to 60 minutes, and when the left time reaches the drying time, the grains become damp inside the dryer. Due to this, the grains near the machine wall may stagnate and not circulate, resulting in poor circulation, and this poor circulation may cause the grains to become unevenly dry.

Means for Solving the Problems This invention provides a drying chamber (2) below a storage chamber (1) for storing grains, and directs hot air generated from a burner (3) to the drying chamber (2). A staking work start switch (5) is installed to allow ventilation to be sucked and discharged by an exhaust fan (4), and to start each part of the dry i4t for each of the staking work, drying work, and discharge work, and a drying work. A start switch (6) and a discharge work start switch (7) are provided, and a tension drying work start switch (8) is provided to start each part of the dryer so that tension work and drying work can be performed at the same time. , when the drying work start switch (8) is operated, the burner (3)
The grain drying control method of the grain dryer is characterized in that it is equipped with a control device that controls and dries the hot air temperature generated by the grain at the maximum hot air temperature set according to the type of grain to be dried. .

Effect of the Invention Operate the tensioning work start switch (5). By this operation, only the parts of the dryer necessary for the tensioning work are started, the grain is tensioned, and the grains are transferred to the storage chamber (1). ),
When the grains have been stored in the storage chamber (1), the drying operation start switch (6) is operated, and by this operation, only the parts necessary for drying of the dryer are started, and the storage chamber (1) is started. 1
) The grains stored in the drying chamber (2) are sucked and discharged by the exhaust fan (4) by hot air generated from the burner (3) while flowing down from the storage chamber (1) into the drying chamber (2). , the drying room (
2) It is ventilated and dried by being exposed to this hot air, and when drying is completed, the discharge work start switch (7) is operated, and by this operation, the dryer starts only the parts necessary for the discharge work, The dried grains in the storage chamber (1) are discharged to the outside of the machine.

When the grain to be dried has a high moisture content and the discharge operation and the drying operation are to be performed at the same time, press the tension drying operation start switch (
8), and as a result of this operation, the dryer starts at the same point as when the tensioning work start switch (5) and the drying work start switch (6) were operated, and at the same time, the setting in the control device is activated. The stored maximum hot air temperature for each type of grain is generated from the burner (3) under the control of this control device, and while the grains are sequentially stored in the type storage chamber (1), this storage chamber is The dried grains and the grains being packed are mixed, and while the mixed grains are flowing down from the storage chamber (1) into the drying chamber (2), they are removed from the burner (3). The generated maximum hot air temperature is sucked and exhausted by the exhaust fan (4), thereby ventilating the drying chamber (2), and the grains are dried by being exposed to this maximum hot air temperature.

Effects of the Invention According to this invention, when the tension drying operation start switch (8) is operated, the burner (3) generates a maximum temperature of 8, which is set for each type of grain, and this 8-air wind causes the grain to be strung. However, since hot air drying can be carried out at the same time, the grains stored in the dryer will not be left in a dry state until the drying process is completed. Since the grains are not torn, they do not dry out unevenly, and when the grains have a high moisture content during the stakeout operation, they are exposed to high-temperature hot air to dry them. , the drying time of the grain can be shortened.

Embodiment In the illustrated example, the machine wall (10) of the dryer (9) has a rectangular shape in plan view that is long in the front and back direction, and is made up of front and rear wall plates and left and right wall plates. (9) is equipped with an operating device (11) for controlling starting, stopping, etc.

A grain collecting trough (12), located in the center of the lower part of the machine wall (10) and extending in the front-rear direction, is V-shaped in front view and has a built-in transfer spiral for rotating and transporting grains. The drying chambers (2), (2) are provided in the vertical direction on the upper side of this grain collection gutter (12) and communicated with each other, and the grains are fed out and flowed down in the lower part of the drying chambers (2), (2). It has a configuration in which the delivery valves (13), (13) are rotatably supported.

A hot air chamber (14) is formed inside the drying chambers (2), (2) and communicates with a burner (3) built in a burner case (15) provided in the front wall plate portion, The drying room (2)
, (2) A ventilation chamber (16) is provided between the outside and the left and right wall plates.
, (16) and provided on the rear wall plate portion (
4), the hot air chamber (14) and the exhaust chamber (1B) are provided with an inclined plate on the upper side and a partition plate on the lower side, and the inside of the hot air chamber (14) is This hot air chamber (14
) Hot air temperature detection sensor (17
), and motors (18) and (19) are installed at the bottom of the rear wall plate.
, (20), and the motor (18) operates the grain collecting trough (1).
2), the motor (19) rotates the delivery valves (13), (13), and the motor (20) rotates the exhaust fan (4); It is.

A fuel tank (21) is installed at the front of the dryer (9), and a fuel pump (21) is installed at the outer side of the lower plate of the burner case (15).
22), a fuel hose is provided from the fuel tank (21),
The burner (
3) The combustion air is supplied to the burner case (15) by rotating a blower (23) provided on the outer side of the upper plate with a blower motor (24), and passing the combustion air through the blower duct. It is configured to blow air into the burner (3).

A storage chamber (1) is formed above the drying chambers (2), (2), and ceiling plates (25), (25) are formed above the storage chamber (1).
), and a transfer gutter (28) is provided along these ceiling plates (25), (25), and this transfer gutter (2B) is provided with a built-in transfer spiral that transfers grains by rotation. Gutter (2
B) A supply port for supplying the transferred grains into the storage chamber (1) is provided in the center, and a diffusion plate (27) is provided at the bottom of this supply port.
The diffusion plate (27) is configured to uniformly diffuse and return the grains into the storage chamber (1), and a discharge funnel (2 days ) and a discharge tube (28).

The grain elevating machine (30) is attached to the front part of the front wall plate, and a packet conveyor (31) belt is stretched between the upper and lower pulleys inside, and a belt is provided between the upper end and the starting end of the transfer gutter (26). A dispensing tube (32) is provided and communicated with the lower end and the grain collection gutter (12).
) A supply gutter (33) is provided between the end portion and the end portion for communication.
The motor (34) is installed on the upper side of the grain hoist (30) on the lower side.
A hopper (35) is provided on the side, and the motor (34) rotates the transfer spiral in the transfer gutter (26), the packet conveyor (31) belt, and the spreader plate (27).

The operating device (11) has a box shape, and on the surface thereof there are installed a lining work start switch (5), a drying work start switch (6), a discharging work start switch (7), a lining drying work start switch (8), Stop switch (36), hot air temperature setting sprinkler (3
7) , grain type setting knob (38) and timer knob (
39), etc., and a control device (40) is provided inside, and the control device (40) includes the respective switches (5),
(6), (7), (8), (36) and each setting (
an input circuit (41) into which the operations of (37), (38), and (39) are input; and the hot air temperature detection sensor (17).
A-D converter (4) converts the detected value detected by A-I)
2), an input circuit (41) into which the converted value converted by this A-D converter (42) is input, and these input circuits (4).
1) This CPU includes a CPU (43) that performs arithmetic and logical operations and comparison operations on various input values input from (41).
The configuration includes an output circuit (44) that receives various commands from (43) and outputs them, and these input circuits (44).
1), (41), A-D converter (42), C
The PU (43) and the output circuit (44) are connected.

When the control device (40) operates the timer withdrawal (38) and operates the stakeout start switch (5), the motor (34) rotates and the packet of the grain hoist (30) is rotated. Conveyor (31) belt, III distribution gutter (2)
6) is configured to rotationally drive the transfer spiral and the diffusion plate (27), and each of the setting holes (37), (38),
(39) t-operate the drying work start switch (6)
When the staking operation start switch (5) is operated, the motors (18), (19), and (20) are operated.
), (24) rotate, and the transfer spiral in the grain collecting trough (12), the delivery valves (13), (+3), the exhaust fan (4), the blower (23) and the fuel pump ( 22) is configured to be rotationally driven, and when the timer knob (39) is operated and the discharge work start switch (7) is operated, the staking work start switch (5) is operated. Motor (18), (19), (2o
) rotates, and the transfer spiral in the grain collection gutter (12), the delivery valves (!3), (13), and the exhaust fan (4) are rotated, and the grain type setting (38) to the position of the type of grain to be dried, and the hot air temperature setting knob (38).
37) to the grain amount position to be dried and the drying operation start switch (6) is operated, the hot air temperature set and stored in this control device (40) is selected and set,
This setting hot air temperature.

The temperature of the hot air generated from the burner (3) is detected by the hot air temperature detection sensor (17), and the fuel pump (
22) to control the flow field of fuel supplied into the burner (3), and the temperature of the hot air is displayed on a display window on the surface of the operating device (11).

The control device (40) controls the grain type setting angle (3°8
) and the timer spreading (39), and when the drying work start switch (8) is operated, the same part as the nose is rotated when the drying work start switch (6) is operated. When the grain type setting spreader (38) is moved to the grain type position to be dried and the tension drying operation start switch (8) is operated, the maximum value set and stored in this control device (4O) is set. The hot air temperature generated by the burner (3) is selected and set, and the hot air temperature detected by the hot air temperature detection sensor (17
), and controls the fuel pump (22) so that the detected hot air temperature and the set maximum hot air temperature are the same, and controls the fuel supply to the burner (3), The hot air temperature is also displayed on the display window of the operating device (11).

Note that the exhaust fan (4) has a configuration in which the rotational speed changes,
1i77 By operating the drying work start switch (8), the rotation speed of the exhaust fan (4) increases, and the suction air z; Y drawn and discharged by the exhaust fan (4) increases. You may also do so. The rotation speed of the feeding/<lube (13), (13) is configured to fluctuate, and by operating the drying operation start switch (8), the feeding valve (13)
, (13) decreases, and this delivery valve (13)
, (13) may be configured to reduce the number of grains V^ delivered. The motor (19) that rotationally drives the delivery valves (13), (13) is configured to rotate at a predetermined 111F constant, and by operating the tension drying operation start switch (8), the dryer ( Although each part of 9) is driven to rotate continuously, it may be configured such that only the delivery valves (13) and (13) are driven to rotate at a predetermined time constant.

The stakeout work involves checking the timer (39) of the operating device (11).
The dryer (9) is started by operating the tensioning operation start switch (5), and when the grains are thrown into the hopper (35), the packet conveyor (30) of the grain raising machine (30) is 31), this grain is conveyed to the upper part and transferred to the transfer trough (
26), and by the transfer spiral in this transfer gutter (2B), it is transferred and supplied onto the expansion plate (27) via this transfer gutter (26), and the storage chamber (1 ) and when a predetermined amount of the grains are stored in the storage chamber (1), the dryer (9) is automatically stopped by operating the switch (36).

In the drying operation, when the grain tensioning is completed, the operating device (11
) by operating the settings (37), (38), and (39) depending on the type of grain to be dried, the amount of grain to be dried, the moisture value, etc.
By operating the drying work start switch (6), the dryer (9) is started and at the same time hot air is generated from the burner (3), and this hot air is sucked and exhausted by the exhaust fan (4). , the drying chamber (2) is ventilated, and the grains stored in the storage chamber (1) of the dryer (9) are stored in the storage chamber (1).
The grains are exposed to this hot air and dried while flowing down inside the drying chamber (2), are fed out to the lower part by the feeding valve (13), and passed through the collecting gutter (12) by the lower transfer spiral to the feeding gutter (33). ), conveyed to the upper part by the packet conveyor (31) of the grain hoist (30), and supplied into the transfer trough (26), and by the transfer spiral in the transfer trough (26). Transferred and supplied onto the diffusion plate (27) via this transfer gutter (26),
This diffusion plate (27) uniformly diffuses and returns into the storage chamber (1) and circulates it to dry, and when the set time set by the timer (39) has elapsed, the control device (11) is activated.
The dryer (9) is automatically stopped under automatic control by the device (40).

In the discharge operation, when the drying of the grains is completed, the operation device (1
By operating the timer switch (39) in step 1) and operating the discharge work start switch (7), the dryer (9) is started and the valve in the discharge funnel (2 days) is opened. and the packet conveyor (3) of the grain raising machine (30).
The dried grains are conveyed to the upper part by the discharge funnel (28).
The liquid is discharged from the machine through the discharge tube (29).

When the grains to be dried have a high moisture content and the drying operation is performed simultaneously, the grain type setting knob (38) and the timer knob (39) of the operating device (11) are
By operating the tension drying work start switch (8), the dryer (9) is started, and at the same time, the settings are set and stored in the control device (40) from the burner (3). The hot air with the highest temperature is generated, and the hopper (
35) While the grains are placed in the storage chamber (1), the maximum temperature hot air generated by the burner (3) is used to remove the grains from the storage chamber (1). The grains flowing down in the drying chamber (2) are dried.

By setting the type of grains to be dried using the grain type setting knob (38) and operating the draping drying operation start switch (8), the maximum temperature of the grains to be dried while draping the grains can be set. By drying the grains with hot air, the grains will not become stuffy and uneven drying due to poor circulation will occur. By exposing the grain to drying, the drying time of the grain can be shortened.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, in which Fig. 1 is a block diagram, Fig. 2 is an enlarged front view of a part of the dryer, and Fig. 3 is a partially sectional view. The front view and FIG. 84 are side views partially cut away. In the figure, (1) is the storage chamber, (2) is the drying room, (3) is the burner, (4) is the exhaust HL machine, (5) is the staking work start switch, and (6) is the drying work start switch. , (7) indicates a discharge operation start switch, and (8) indicates a tension drying operation start switch.

Claims (1)

[Claims] A drying chamber (2) is provided below the storage chamber (1) for storing grains, and the hot air generated from the burner (3) is sent to the drying chamber (2).
A lining work start switch (5) is installed to allow ventilation to be sucked and exhausted by an exhaust fan (4), and to start each part of the dryer for each of the lining work, drying work, and discharge work, and a drying work start switch (5). A start switch (6) and a discharge work start switch (7) are provided, and a tension drying work start switch (8) is provided to start each part of the dryer so that tension work and drying work can be performed at the same time. , the said hanging drying work start switch (8
) is operated, the grain dryer is equipped with a control device that controls and dries the hot air temperature generated from the burner (3) at a maximum hot air temperature set according to the type of grain to be dried. grain drying control method.