JPH031085A - Grain drying device - Google Patents

Abstract

PURPOSE:To use a supplying conveyer both for charging work and discharging work by a method wherein grains to be dried are shifted by the supplying conveyer to charge them into a drying tank and the dried grains are cooled naturally in a natural cooling tank while the naturally cooled grains are supplied onto the supplying conveyer. CONSTITUTION:Respective grain dryers 8, having drying tanks 2 for receiving and drying grains, are arranged at one side of a grain drying device along a supplying conveyer 1 while respective natural cooling machines 9, having natural cooling tanks 3 receiving the dried grains and cooling them naturally, are arranged at the other side of the grain drying device so as to be opposed to respective dryers 8. The grains are diffused uniformly by a drying and diffusing machine 27 and are returned into the drying tanks 2 whereby the grains are circulated and dried. Then, the grains are diffused and supplied uniformly into the natural cooling tanks 3 of the natural cooling machine 9 by a natural cooling and diffusing machine 40 to cool the dried grains naturally in the natural cooling tanks 3. Cooled grains in the natural cooling tanks 3 are shifted by a discharging conveyer 7 and are supplied onto the shifting belt 10 of the supplying conveyer 1.

Description

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

Conventional technology In the past, a supply conveyor was provided to transfer the grains to the upper part of a drying tank for storing and drying the grains, and to load the grains into the drying tank. A cooling tank is provided to store and cool the grains, and the dried grains are transported to the cooling tank and transported to the upper part by a drying lifting device installed on one side of the rear of the drying tank. The grains are then fed to a cooling grain raising device installed at the upper part of one front side of the cooling tank, and are transported to the upper part by this cooling grain raising device, and the grains are left to cool from the upper part of the cooling tank. It was a grain drying device in which the grains were supplied into a tank, and the grains that had been left to cool in the cooling tank were transported to the outside of the machine by a take-out conveyor provided at the bottom of the cooling tank.

Problems to be Solved by the Invention The seven grains to be dried are transferred to the upper part by a supply conveyor and placed into the drying tank from the upper part of the drying tank, where they are repeatedly circulated and exposed to hot air. The dried grains are transported to the upper part by a drying grain raising device, supplied from this drying grain raising device to a cooling grain raising device, and transported to the upper part by this cooling grain raising device. The grains are supplied from the upper part of the cooling tank into the cooling tank and left to cool, and the cooled grains are supplied onto a take-out conveyor, transported by the take-out conveyor, and discharged out of the machine.

The purpose is to provide a structure that allows grain to be returned from the cooling tank to the drying tank, and also to reduce costs by simplifying the structures of both and by lowering the overall height.

Means for Solving the Problems The present invention has two drying tanks (2 tanks) arranged on one side for storing and drying grains along a supply conveyor ill which can select the supply position during the grain transport process. A cooling tank (3) for accommodating and cooling dried grains is provided on the other side facing each drying tank (2), and each drying tank (2) is connected to the supply conveyor. (a lower conveyor (4) that receives and transfers the grains supplied from the drying tank and the grains in this drying tank (2), and a lower conveyor (4) that receives and transfers the grains that are fried from this lower conveyor (4) and faces each other. A pair of the drying tank (2) and the cooling tank (3).

and an upper conveyor (6) for switching and conveying to the outside of the machine (5), and at the bottom of each cooling tank (3), a take-out conveyor (7) for taking out the cooling grains to the supply conveyor +1). The structure of the grain drying device includes:

Effect of the invention The grains to be dried are transferred by a supply conveyor (1) and put into a drying tank (2), and are exposed to hot air and dried while being repeatedly circulated in this drying tank (2). The finished grains are transferred by the lower conveyor (4), fried to the upper part, and supplied to the upper conveyor (6), and by a switching operation, the upper conveyor (6) passes through the drying tank (2) and then the cooling tank ( 3) and are left to cool in this cooling tank (3), and the cooled grains are transferred by a take-out conveyor (7) and supplied onto the supply conveyor (1); 1) and is discharged from the aircraft.

Effects of the Invention With this invention, it is convenient because the supply conveyor fil can be used for both loading and discharging operations, and the cooling tank (3) can be used as a storage tank for temporarily storing grains during the peak of receiving cargo. It can be used for multiple purposes, and the cost can be significantly reduced because the conventional cooling grain raising device for the cooling tank (3) is no longer necessary.

Embodiment In the example shown in FIG.
1), each grain dryer (8) having a drying tank (2) for accommodating and drying grains is installed on one side, and each of these dryers (8) is installed on the other side. It has a configuration in which cooling machines (9) each having a cooling tank (3) facing each other for accommodating and cooling dried grains are disposed, and furthermore, in front of the supply conveyor +1), the grains are This configuration includes a receiving hopper (2) that supplies goods to the supply conveyor (1).

The supply conveyor (1) includes a rotationally driven transfer belt (1).
[It is configured to receive grains supplied upward and transport the grains with this transport belt (II);
A supply guide plate (23 is provided, and this supply guide plate Q3 is mounted on the screw shaft) with the central part supported by the screw shaft on the top and the left and right sides pivotally supported by the moving shaft diagram. It has a structure that can be moved freely by rotation, and by moving this supply guide plate I2δ to an arbitrary position, grains in the middle of the transfer process can be transferred to each dryer (8).
This supply guide plate Q to this dryer (8)
3, and this transfer belt (1(
I is configured to be rotationally driven by a motor.

The machine wall (1) of the dryer (8) has a rectangular shape that is long in the left and right direction, and consists of one front and rear wall plate and a left and right wall plate. ) and an operating device for starting and stopping the cooling device (9), etc. [(12
1 and a burner case 010 containing a burner (13), an exhaust fan (19) is installed on the left wall plate, and a motor (IG) is installed on this exhaust fan (+9).

At the center of the lower part of the machine wall (1), there is a grain collection gutter (■) equipped with a spiral lower conveyor (4) that transfers grains in the left and right direction. It has a structure that can be switched to start and stop, and this grain collection gutter (■ The drying chamber formed between the ventilation nets on the upper side (formerly installed in parallel and communicating with each other)
The lower part of the drying chamber 2' is equipped with a feeding valve (in order) that feeds out the grains and flows down, and a hot air chamber (to) is formed between the inner sides of each drying chamber (18) and communicates with the burner f1m. A ventilation chamber I21) is formed outside the drying chamber f1)m and communicated with the ventilation fan (151). The starting end of the lower conveyor (4) in the grain collection gutter (m) is configured to communicate with the lower side of the transfer belt (1) of the supply conveyor (1), From one side of the belt, grains are guided by the supply guide plate Q3, supplied into this grain collecting trough (m), and transported by this lower conveyor (4).

The drying tank (2) is formed on the upper side of the drying chamber 1 [1] and communicated with the drying tank (2), and the upper side of the drying tank (2) is equipped with a ceiling plate n and an upper conveyor (6) of a spiral type for transferring grains. An internal transfer gutter 24 is provided, and this transfer gutter e4 and this upper conveyor (C1 are constructed by connecting the dryer (8) and the cooling device (9), and the bottom of this transfer gutter C241 A drying supply port +251 for supplying transferred grains into this drying tank (2) is provided at a location located in the center of this drying tank (2) in the longitudinal and lateral directions. A drying on-off valve 4 that can be opened and closed is provided, and the drying supply port is opened and closed by operating the drying on-off valve 12G. It is configured with a drying diffusion plate■ that evenly diffuses and reduces
This drying diffusion plate (5) is configured to be rotationally driven by a motor (1).

The grain raising machine +21 is installed in the front part of the right wall plate, inside which a bucket 1-conveyor (c) belt is stretched between the upper and lower pulleys, and a thrower is installed between the upper end and the starting end of the transfer gutter C4. A feed pipe OL is provided for communication, and a supply gutter OB is provided between the lower end and the terminal end of the grain collecting gutter (lη), and a motor is provided, and this motor (to) connects the packet conveyor (belt 29, the upper conveyor (6) in the transfer gutter C4 and the packet conveyor +21).
The structure is such that the lower conveyor (4) in the grain collection gutter (m) is rotatably driven through the grain collecting trough (m), and the grain collecting trough (m) is configured to rotationally drive the grain collection gutter (m), and the grain collecting gutter (m) has a structure in which the lower conveyor (4), etc. , a moisture sensor 03 is provided to detect moisture in the crushed grains at the same time as crushing the grains under pressure.
Each part of 3 is configured to be rotationally driven by an internally provided motor (b).

The machine wall 09 of the cooling unit (9) has a rectangular shape long in the left and right direction, and consists of one front and rear wall plate and a left and right wall plate, and the left wall plate is provided with a motor (to), and the machine wall OQ A take-out gutter (5) equipped with a spiral-type take-out conveyor (7) for transferring grains in the left-right direction is provided in the center of the inner lower part, and this take-out conveyor (7) can be switched between starting and stopping. The cooling tank (3) for cooling the grains is formed on the upper side of this take-out gutter and is communicated with the take-out gutter and the terminal end of the take-out conveyor (7) is connected to the supply conveyor ( The transfer belt (1) is configured to communicate with the upper side of the transfer belt (1 [l),
The cooled grains transferred by this take-out conveyor (7) are supplied onto this transfer belt (1ω).

A ceiling plate (to) and the transfer gutter 1241 are provided on the upper side of the cooling tank (3), and at a location located at the center of the cooling tank (3) in the longitudinal and lateral directions at the bottom of the transfer gutter I241. teeth.

A cooling supply port (
(to)), and below this cooling supply port (to), a cooling diffusion plate 6G is provided to uniformly diffuse and supply grains into the cooling tank (3), and this cooling diffusion plate +41 is provided. The dryer (
A discharge port 141) is provided between the cooling device 8) and the cooling device (9).

This discharge funnel C3 is equipped with a discharge on-off valve +45 that can be opened and closed, and a discharge tube +44 is provided on the lower side of this discharge funnel. υ is configured to open and close, and the grains are discharged to the outside of the machine (5) by operating the discharge opening/closing valve in the open state.

When the dried grains are supplied from the dryer (8) to the cooling tank (3) of the cooling machine (9) for cooling, the drying on/off valve 12G of the transfer gutter (24) and the discharge Open/close valve (
When the transfer gutter G!Φ is closed, the dried grains supplied into the transfer gutter G!Φ are transferred by the upper conveyor (6) in the transfer gutter G! fil, and is uniformly diffused into the cooling tank (3) by this cooling diffusion plate 6G.

Hereinafter, the operation of the above embodiment will be explained.

The grain dryer (8) is started by operating the operating device ua,
As the grains flow down from the drying tank (2) through the drying chamber i18, they are exposed to hot air generated by the burner to dry them, and then are fed to the lower part by the feed valve (I9) and flow down to the grain collecting trough (i18). From the feed gutter Gυ to the lower conveyor (4) into the grain hoist (2a)
It is transported to the upper part by a packet conveyor (2!il) and is supplied into the transfer gutter circle through the discharge tube O1m. Upper conveyor (6) onto drying diffusion plate (2)
The drying tank (2) is transported and supplied by this drying diffusion plate (5).
) and are circulated and dried. When the moisture sensor 03 detects the same grain moisture as the finishing target moisture, the operation device (1) automatically controls and automatically stops the dryer (8).

When cooling the dried grains, close the drying on-off valve (2e) of the transfer gutter +241 and the discharge on-off valve 6b, and stop the take-out conveyor (7) of the cooling machine (9). By operating the operating device 025, the dryer (8) and the cooling machine (9) are started, and the dried grains are transferred from the drying tank (2) to the drying chamber (Ill). Valve (1
Due to the scratches, the grain is fed out to the lower part and flows down from the collection gutter (1"71) to the feed gutter 0υ, and is transferred and supplied into the grain raising machine (toward) by the lower conveyor (4), and is fed by the packet conveyor 2. It is conveyed to the upper part through the dispensing tube 01 and supplied into the transfer gutter 24, and from this transfer gutter +241, it is transferred and supplied onto the cooling diffusion plate M (I) by the upper conveyor (6), and this cooling It is evenly distributed and supplied to the cooling tank (3) of the cooling device (9) between the diffusion plates and stored.

The dried grains are left to cool in the cooling tank (3).

When discharging the cooled grains to the outside of the machine (5), the drying on-off valve ce of the transfer gutter I24 is operated to the closed state, and the discharge on-off valve 6 is operated to the open state, and By operating the lower conveyor (4) and the take-out conveyor (7) to the starting state and operating the operating device θ, the dryer (8), the cooling machine (9), and the supply conveyor (1) are operated.
is started, and the cooled grains in the cooling tank (3) of the cooling machine (9) are transferred by the take-out conveyor (7). The grains that have been supplied and are being transferred by the transfer belt (1) are guided by the supply guide plate Q3 and are fed into the grain collecting trough (■) of the dryer (8), and from this grain collecting trough (m to the The grain hoist CQ via the supply gutter OD
The lower conveyor (6) transports the packet to the inside, and the packet conveyor (c) transports it to the upper part of the dispensing cylinder Ol.
is supplied into the transfer @Q4 through this transfer gutter 124
1 by the upper conveyor (6), and is discharged from the discharge port (for the discharge port) to the outside of the machine (5) via the discharge funnel (g) and the discharge tube (f).

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall plan view of a grain drying device, Fig. 2 is an overall side view of the grain drying device that can be partially cut away, and Fig. 3 is a second embodiment of the grain drying device. FIG. 4 is a sectional view taken along line AA in the figure, and FIG. 4 is a sectional view taken along line BB in FIG. In the figure, code (1) is the supply conveyor, (2) is the drying tank, (
3) is the cooling tank, (4) is the lower conveyor, (5) is outside the machine,
(6) shows the upper conveyor, and (7) shows the take-out conveyor.

Claims (1)

[Claims] Along the supply conveyor (1), which can select the supply position during the grain transfer process, each drying tank (2) for storing and drying the grains is arranged on one side, and each of these drying tanks (2) is arranged on the other side. Drying tank (2)
A cooling tank (3) facing the accommodating and cooling the dried grains
Each drying tank (2) includes a lower conveyor (4) for receiving and transferring grains supplied from the supply conveyor (1) and grains in this drying tank (2), and a lower conveyor (4) for receiving and transferring the grains supplied from the supply conveyor (1) and the grains in this drying tank (2). (
A pair of opposing drying tanks (2), cooling tanks (3), and an upper conveyor (6) for receiving grains fried from 4) and conveying the grains to the outside of the machine (5) are provided. , each cooling tank (3)
The grain drying device is provided with a take-out conveyor (7) at the bottom of which takes out the air-cooled grains to the supply conveyor (1).