JPH0335593B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to a drying device.

Prior Art The present applicant has proposed that even if there is only one circulating dryer 1 as shown in FIGS. We have proposed a drying device in which the refining tank 2 is integrated into a unit so that it functions similarly to the refining section of the circulating dryer 1.

However, this drying device has a screw conveyor 6 for supplying the circulating dryer 1 and the tempering tank 2.
In addition to 7, complicated relay screw conveyors a and b may be provided above the circulating dryer 1 and the tempering tank 2, or elevators 3 may be installed outside the circulating dryer 1 and the tempering tank 2, respectively. ，
3' is arranged so as to protrude high, and the former has the disadvantage that the required power is large, and the latter has the drawback that the installation height is high.

In addition, a paddy drying device was developed in 1975, in which a dryer and a tank were installed together, an elevator was interposed between the dryer and the tank, and a discharge section provided above the elevator was connected to the top of the dryer. It is proposed as Publication No. 177195.

However, in this device, the discharge part of the elevator that transports the grain upwards in the dryer is connected only to one of the dryer and the tank.

Furthermore, a drying device and a pre-drying storage device are installed together, an elevator is attached to each of the drying device and the pre-drying storage device, and the discharge section provided above the elevator of the drying device is connected to the carry-in gutter of the pre-drying storage device. In 1977, a paddy drying device was developed in which the discharge section installed above the elevator of the pre-drying storage device was connected to the inlet gutter of the drying device.
It has been proposed as Publication No. -70072.

However, in this case, the elevator is installed on the side of the drying device and the pre-drying storage device, and the discharge part of each elevator is connected to the drying device or the pre-drying storage device by a very long take-out tube. It was hot.

In addition, in each of the above-mentioned conventional technologies, at least one outer wall of the dryer, elevator, and tank is discontinuous with the other walls, resulting in wasted space and requiring a large amount of construction materials. .

Problems to be Solved by the Invention It is an object of the present invention to address the above-mentioned problems and to
The space between the dryer and the tank is as narrow as possible, the installation height of the elevator is small, it can be installed in narrow spaces, and there is no need to use the conventional complicated relay screw conveyor. The structure is simple, the circulation temper drying operation is simplified, there are fewer breakdowns, the required power and cost can be reduced, and the power for the supply conveyor and discharge conveyor can be taken in from one place. , it is possible to use the dryer and tank separately, and by connecting the outer walls of the dryer, elevator, and tank, we eliminate as much space as possible, reinforce each other, and use a small amount of construction material. The purpose is to provide a drying device that is sufficient for drying.

Means for Solving the Problems The drying device of the present invention has a dryer and a tank interposed between them with a plurality of elevators, and the outer walls of each are connected to each other in a continuous manner, and the plurality of elevators are connected to the discharge part of the dryer and the tank. interposed so as to face in a direction crossing the direction in which the dryer and the tank are installed, grain supply ports are provided at the upper parts of the dryer and the tank, respectively, and a supply conveyor is provided above the grain supply port. A discharge conveyor connected to the lower part of the plurality of elevators is provided rotatably on the same axis at a lower part of the dryer and the tank, and the discharge portion of the plurality of elevators is rotatably provided on the same axis. It has a structure characterized in that both supply conveyors are connected to each other in a switchable manner.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In FIGS. 3 and 4, reference numeral 1 denotes a circulation dryer, in which the circulation dryer 1 and the tempering tank 2 are installed together in the horizontal direction. A plurality of two elevators 3, 3' are interposed between them, with their discharge parts 31, 31' facing in a direction intersecting the direction in which the circulating dryer 1 and the tempering tank 2 are installed. .

The outer walls of the circulation dryer 1, the elevators 3, 3', and the refining tank 2 are continuous.

As shown in FIG. 3, inside the circulating dryer 1, a tempering section 11 is formed, a drying section 12 is formed below the tempering section 11, and a driving section is provided at the bottom of the drying section 12. The circulating dryer 1 has a tempering section 1.
1. It consists of a drying section 12 and a driving section.

A refining section 21 is formed inside the refining tank 2, a driving section is formed below the refining section 21, and the refining tank 2 includes the refining section 21 and the driving section.

A grain supply port 4 is provided in the upper part of the circulation dryer 1 at a position corresponding to between the elevator 3 and the elevator 3', and a supply port 5 is provided in the upper part of the tempering tank 2 between the elevator 3 and the elevator. 3', and the circulating dryer 1
A supply screw conveyor 6 is horizontally suspended above the supply port 4 in communication with the supply port 4 so as to be freely rotatable.
A supply screw conveyor 7 is horizontally suspended above the supply port 5 of the tempering tank 2 in communication with the supply port 5 so as to be freely rotatable.

The axes of the supply screw conveyor 6 and the supply screw conveyor are coaxial, and the twist directions of the supply screw conveyor 6 and the supply screw conveyor 7 are opposite to each other.

A discharge section 31 is provided above the elevator 3, and the discharge section 31 of the elevator 3 is connected to a chute 32.
The feed screw conveyor 7 is connected to the feed screw conveyor 7 via the feed screw conveyor 7, and the feed screw conveyor 6 is connected to the feed screw conveyor 6 via the chute 33, and the elevator 3'
A discharge section 31' of the elevator 3' is provided above, and the discharge section 31' of the elevator 3' is connected to the supply screw conveyor 6 via a chute 32', and is connected to the supply screw conveyor 6 via a chute 33'. 7 has been contacted.

In the discharge section 31 of the elevator 3, chute 32 and 33 connected to the supply screw conveyors 6 and 7, respectively, can be switched to the supply screw conveyors 6 and 7, and the discharge section 31' of the elevator 3' are the chutes 32' and 3 connected to the supply screw conveyors 6 and 7, respectively.
3' is switchable for supply screw conveyors 6 and 7.

A discharge screw conveyor 8 is rotatably installed horizontally in the lower part of the circulating dryer 1, and the discharge screw conveyor 8 is connected to the lower part of the elevator 3. A screw conveyor 9 is rotatably suspended horizontally, and the discharge screw conveyor 9 is connected to the lower part of the elevator 3'.

The respective shafts of the discharge screw conveyor 8 and the discharge screw conveyor 9 are on the same axis like the supply screw conveyors 6 and 7, and the discharge screw conveyor 8 and the discharge screw conveyor 9 are arranged on the same axis. The twist directions are opposite.

At the top of the screw conveyor 8 for discharging the circulating dryer 1, a plurality of rotary valves 13 are arranged horizontally and are rotatably provided, and at the top of the screw conveyor 9 for discharging the tempering tank 2. A plurality of rotary valves 22 are arranged horizontally and are rotatably provided.

A burner B is attached to the front wall of the circulation dryer 1, and a fan F is attached to the rear wall opposite to the front wall of the circulation dryer 1.

In addition, elevators 3 and 3' are shown in Figures 3 and 4.
In the figure, each elevator frame 30, 30' is provided with its own elevator frame 30, 30' over the entire length of the upper and lower sides, but as shown in FIG.
In some cases, the parts 0 and 30' are omitted, and the elevators 3 and 3' are built and stretched directly into the gap A between the dryer frame 10 and the tank machine frame 20.

In the gap A between the elevators 3 and 3',
As shown in FIG. 6, an endless belt C for transmission that simultaneously drives pulleys 33, 33' for the elevators 3, 3', pulleys 40 for the supply screw conveyors 6, 7, etc. is housed in a stretched manner. ing.

Further, the upper ends of the elevators 3 and 3' may not be made to protrude upward, but may be flush with the upper ends of the circulation dryer 1 and the tempering tank 2.

The directions of the rotating shafts of the supply screw conveyors 4, 5 and the discharge screw conveyors 8, 9 of the circulation dryer 1 and the tempering tank 2 are the same as the direction in which the circulation dryer 1 and the tempering tank 2 are installed, respectively. It is said that

Next, the operation of this embodiment will be explained.

When the circulation dryer 1 and the tempering tank 2 are loaded with grains and the circulation dryer 1 is operated, the grains in the conditioning section 11 of the circulation dryer 1 are as follows.
After passing through the drying section 12 at the lower part of the tempering section 11, a plurality of rotating rotary valves 13 of the drive section discharge the grains downward, and then a rotating discharge screen provided at the lower part of the circulation dryer 1. It is sent along the Yukon conveyor 8 to below the elevator 3 between the circulating dryer 1 and the tempering tank 2.

Next, the elevator 3 transports the grains upward, and the grains are supplied from the discharge section 31 provided above the elevator 3 via the chute 32 to the supply screw conveyor 7 that rotates inside the tempering tank 2, and then It enters the refining section 21 in the refining tank 2 through the supply port 5 connected to the screw conveyor 7.

On the other hand, after the grains in the tempering tank 2 are tempered in the tempering section 21 in the tempering tank 2, a plurality of rotary valves 22 rotated by the drive section at the bottom of the tempering section 21 discharge the grains downward. Then, along the discharge screw conveyor 9 which rotates together with the discharge screw conveyor 8 of the circulation dryer 1, it is sent below the elevator 3' between the circulation dryer 1 and the tempering tank 2. .

Next, the elevator 3' transports the grains upward, and the grains are passed from the discharge section 31' provided above the elevator 3' to the tempering tank 2 through the chute 32'.
The water is fed to the feed screw conveyor 6 which rotates together with the feed screw conveyor 7 of the feed screw conveyor 7, and is returned to the refining section 11 of the circulating dryer 1 through the feed port 4 connected to the feed screw conveyor 6.

In this way, the grain is circulated through the circulating dryer 1 and tempering tank 2 in series.

During this time, the hot air generated by the burner B attached to the front wall of the circulation dryer 1 is transferred to the circulation dryer 1 by the fan F attached to the rear wall of the circulation dryer 1.
After passing through the tempering section 12 and drying the grain, the air is discharged to the outside of the circulating dryer 1.

In addition, a discharge section 3 provided above the elevator 3
1 and connects the chute 33 to the supply screw conveyor 6 of the circulation dryer 1, circulation tempering drying is performed only by the circulation dryer 1,
When the discharge section 31' provided above the elevator 3' is switched and the chute 33' is connected to the supply screw conveyor 7 of the tempering tank 2, circulation is performed only by the tempering tank 2.

In the examples, explanations are omitted regarding the means for loading grain and the means for taking it out of the machine. It is sufficient to use a conventional technique such as attaching a screw conveyor 8, 9 to feed the grains directly onto the upper part of the discharge screw conveyors 8, 9. Also, as for the means for taking out the grains, an appropriate Needless to say, it is sufficient to use a conventional technique in which the water flows out to a separately provided chute or the like using a switching device.

Effects of the Invention As described above, according to the drying device of the present invention, a dryer and a tank are installed together, and
By interposing multiple elevators between the dryer and the tank in a direction that intersects the direction in which the dryer and tank are installed, the space between the dryer and the tank can be made as narrow as possible, and the elevator Since the outlet, dryer inlet, and tank inlet can be placed close to each other, the length of the chute can be shortened, the installation height of the elevator can be small, and installation in narrow spaces is possible.

In addition, a grain supply port is provided at the top of the dryer and the tank, and a supply conveyor is rotatably provided above the grain supply port on the same axis.
A discharge conveyor connected to the lower part of the dryer and the tank is provided rotatably on the same axis, and a discharge part provided above the plurality of elevators is connected to the supply conveyor in the dryer and the tank. Since the structure is simple and there is no need to use a complicated relay screw conveyor like in the past, the grain in the dryer enters the tank directly from the elevator, allowing for circulation conditioning. The drying operation can be simplified, there are fewer breakdowns, the required power and cost can be reduced, the power for the supply conveyor and the discharge conveyor can be taken in from one place, and the supply conveyor for the tank can be The discharge section provided above the elevator connected to the conveyor is switched to communicate with the dryer supply conveyor, and the discharge section provided above the elevator connected to the dryer supply conveyor is switched to communicate with the tank supply conveyor. If the dryer and tank are switched to communicate with each other, the dryer and tank can be used to circulate grain separately.

In particular, in the present invention, since the outer walls of the dryer, elevator, and tank are continuous, there is no wasted space, they reinforce each other, and the amount of construction material is reduced.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional drying device, FIG. 2 is a plan view of FIG. 5 is a plan view of essential parts of another embodiment of the present invention, FIG. 6 is an explanatory diagram of the transmission mechanism of the drying device, FIG. 7 is a front perspective view of the drying device, and FIG. FIG. 8 is a rear perspective view of the drying device. 1... Circulating dryer, 2... Conditioning tank, 3,
3'... Elevator, 4, 5... Supply port, 6,
7... Supply screw conveyor, 8, 9...
Discharge screw conveyor, 10... Dryer frame, 11... Tempering section, 12... Drying section, 13...
Rotary valve, 20...Tank machine frame, 21...Refining section,
22...Rotary valve, 30, 30'...Elevator frame, 3
1, 31'...Discharge section, 32, 32', 33, 3
3'...Shute, 40...Pulley, B...Burner, F...Fan, a, b...Relay screw conveyor, c...Endless transmission band, A...Void portion.

Claims (1)

[Claims] 1. A dryer and a tank are installed together with a plurality of elevators interposed therebetween and their outer walls are continuous, and the discharge portion of the plurality of elevators intersects with the direction in which the dryer and tank are installed. A grain supply port is provided at the upper part of the dryer and the tank, and a supply conveyor is rotatably provided on the same axis above the grain supply port. Discharge conveyors connected to the lower part of the plurality of elevators are rotatably provided on the same axis, and the discharge portions of the plurality of elevators are connected to the supply conveyors in a switchable manner. A drying device characterized by: