JPH0460380A - Grain loading method in grain drying equipment - Google Patents

Abstract

PURPOSE:To eliminate unevenness of moisture by dividing a storage part for supplying grain into a first and a second storage parts and connecting them in series, letting grain flow down to an air drying part, and drying grain while returning to the first and second storage parts with a grain circulating mecha nism. CONSTITUTION:The grain supplied to a feed conveyor is fed to either of grain drying devices by selection control. Before the received grain is fed, bottom valves 30, 30 of a second storage part (cooling tank) 5 are set to a closed posi tion. The grain from an elevator is dropped in a diffused manner from a dis charge outlet through a first opening (a) to a first storage part 1 and through a second opening (b) to a second storage part 5 by a selector valve 17 reciprocat ing at predetermined intervals. On completion of feeding, the bottom valves 30, 30 open, thereby enabling the grain in the second storage part 5 to flow down to the first storage part 1. First, the grain in the first storage part 1 flows down to be dried, and then the grain in the second storage part 5 flows down to be dried. The dried grain is lifted by the elevator and returned to the second storage part 5 or the first storage part 1 to be conditioned by the selector valve 17 fixed on the second opening (b) side.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] This invention relates to a grain loading method in a grain drying device.

[Prior Art and Problems to be Solved by the Invention] A grain drying device commonly used for transportation has a storage section in the upper part and an aeration drying section in the lower part. Then, the drying work begins.

By the way, especially in a large-capacity grain drying apparatus, grains harvested from a plurality of fields may be dried all at once, resulting in uneven moisture content in the grains themselves.

Since grains harvested from these different fields are layered and dried, uneven moisture remains even after drying.

[Means to solve the problem]

This invention attempts to eliminate the above-mentioned drawbacks, and the storage section is formed by dividing into a first storage section 1 and a second storage section 5,
These are connected in series, and the aeration drying section 2 is caused to flow down, and drying air is applied to the falling grain, while being returned to the first storage section or the second storage section 1.5 by a grain circulation transfer mechanism such as an elevator. The grain drying apparatus is configured to carry out grain drying, and the grain drying apparatus is provided with six capacity for distributing grain to the first and second storage sections 1 and 5.

In addition, as a means of distributing and filling, there is a mechanism in which a supply switching mechanism such as a switching valve is switched to the first storage part side or a second storage part side, or a mechanism in which the supply switching mechanism such as a switching valve is used in a neutral position and the distribution is supplied to both ridge parts. The configuration is as follows.

[Operation and effect of the invention]

When the grain to be dried is loaded into the storage section, it is distributed and supplied to the first storage section and the second storage section.

Even when grains with different moisture values are loaded at the same time, these are distributed and mixed to eliminate moisture unevenness.

Incidentally, at the start of the drying operation, the grains distributed to the first storage section and the second storage section are connected in series and are circulated and dried while the grains are flowing through the aeration drying section.

In particular, it is effective to use a cooling tank that temporarily stores and cools dried grains by setting it in a plurality of storage parts, since there is no need to provide a special storage part.6 [Example] According to the present invention An embodiment will be described based on the drawings.

The grain drying device includes a grain drying section 4 in which a storage section 1 serving as a first storage section, an aeration drying section 2, and a grain collecting section 3 are vertically stacked.
And, the second grain drying section is placed on top of the frame of the four grain drying units.
It consists of a cooling tank 5 as a storage section, and these are configured in the shape of a vertically long rectangular parallelepiped. Of these, grain drying section 4
The ventilation drying section 2 has hot air chambers 7, 7 on the left and right, sandwiching a 44@ grain flow passage 6, 6 formed of a breathable material.
and exhaust chambers 8, 8... are formed, the air sucked and ventilated by the suction fan 9 is hot-aired by the burner 10, and the hot air is applied to the grains flowing down the grain flow passages 6, 6... It is structured as follows. Reference numerals 11, 11, . . . are delivery valves disposed at the lower portions of the grain flow passages 6, 6, . . . for gradually causing the grains to flow down.

A lateral transfer @ 13 equipped with a transfer spiral 12 is provided at the lower part of the grain collecting section 3 that receives grains fed from each of the feed valves 11, 11, . It is connected to the elevator 15 from the top.

This elevator 15 is located on the back side of each machine frame of the grain drying section 4 and the cooling tank 5, and is erected at a slightly higher height than the cooling tank 5. Inside the elevator 15, an endless belt with packets attached at predetermined intervals is wound between upper and lower pulleys, so that grains, etc. can be scooped up from the joint opening 14 and thrown at the upper part and thrown toward the section 016. There is.

Further, this throw-out part 016 has a switching valve 17, which is configured to be able to selectively supply to the first opening A and the second opening (supply switching mechanism) according to the switching operation of the switching valve 17.
The discharge side end of the first opening A is exposed to a communication pipe 18 located before and after the ceiling of the first storage section 1 and connected to the starting end of the intermediate transfer 4i 120 of the inner tube of the transfer spiral 19.

On the other hand, the second opening port looks into the starting end side of the upper transfer gutter 22 incorporating the transfer spiral 21, which is arranged in the same manner in the large well section on the side of the cooling tank 5 (second storage section).

The transfer spiral 19 trough 20 and the transfer spiral 21 trough 22 are extended to the central upper position of each tank section.

Rotation spread! ! Can be supplied to 11,123 or 24 sides.

The cooling tank 5 (second storage section) is the grain drying section 4.
A cooling section 25 having approximately the same capacity as the first storage section 1, and a cooling section 25 located below the cooling section 25, which is formed into a V-shaped cross section and two tanks, each of which is discharged and transferred downward.
6.26. The feeding section 27 is equipped with transfer spirals 28 and 28 for horizontally transferring and discharging the collected grains that are sequentially flowing up.

A bottom valve 30 is provided at the bottom of each discharge transfer gutter 26, and the bottom can be opened by rotating the bottom valve about an appropriate fulcrum at the top. With the switching operation of the bottom valve 30, grains from the feeding section 27 can flow down into the first storage section 1 on the side of the grain drying section 4 through the open ceiling section C of the grain drying section 4.

31 is a motor that drives the transfer spiral 19 of the transfer gutter 20; 32 is the transfer spiral 28, 2 of the discharge transfer gutter 26.26;
811ii dynamic motor.

In addition, a downstream guide cylinder portion 34 is formed in the transfer trough 33.33 protruding to the outside of the machine frame at the end of each transfer of these discharge transfer spirals 28, 28, and the discharge transfer grain is transferred to a discharge conveyor 35 in the form of a belt conveyor. It is configured so that it can be fed over the surface.

The supply start end side of the transfer gutter 20 is located outside the machine frame, and a discharge port 36 that can be opened and closed by an on-off valve (not shown) is provided at the lower side of the transfer gutter 20 to correspond to the connecting portion of the communication pipe 18.
has.

Above left and right discharge transfer gutter 26.・Circulation transfer gutter 2 between 26
0 is located, and the downstream guide tubes 34, 34
- and the discharge ports 36 are arranged side by side on the left and right, and are provided along the transfer direction of the discharge conveyor 35.

The discharge conveyor 35 is provided to connect left and right grain drying devices installed side by side, i.e., integrated frame parts of a plurality of grain drying sections 4 and cooling tanks 5, on the back side of each machine frame part. The box-shaped frame portion 37 of the conveyor 35 is attached to each of these machine frames and the elevator 15 frame.

Reference numeral 38 denotes a tension conveyor provided parallel to the discharge conveyor 35, which is in the form of a flight conveyor, and its box-shaped frame portion is supported and fixed to the box-shaped frame portion of the discharge conveyor 35.

A discharge port (not shown) is located in the middle of the above-mentioned loading conveyor 38.
These are provided with on-off valves (not shown), and guide tubes 39, 39, .

The switching valve 17 is switched between the first opening and the second opening by an interlocking motor 40 that can be forward-reversed.When the motor 40 is in the mode of loading grain into the storage section, the switching valve 17 is operated at fixed time intervals. The device is configured to switch between supplying to the first opening or the second opening.

Further, the bottom valves 30, 30 are configured so that their openings can be opened and closed by a forward/reverse motor (not shown).

The above-mentioned interlocking motor 40 etc. are controlled by input command signals etc. to the arithmetic control section of the microcomputer that performs drying control.
It is assumed that this is linked to the reversal.

The action of the upper side will be explained.

Grain harvested in the field is appropriately supplied to the starting end side of the pitching conveyor 38. Selective control from a control room (not shown) specifies which grain drying device is to be loaded with grain, and when the loading switch is turned ON, a predetermined closing valve for loading opens, and the loading conveyor 38 The transferred grain will be loaded and supplied into the specified drying equipment.

Prior to loading the received grain, the bottom valves 30, 30 of the cooling tank 5 of the designated drying device are set in the closed position by the motor 41.

When loading starts, the grain from the elevator 15 reaches the switching valve 17 from the dumping opening, is guided by the switching valve 17, which reciprocates at predetermined time intervals, and moves from the first opening to the second opening.
The grains flow down to the opening, and thereafter the grains from the first opening pass through the intermediate transfer@20 and diffuse and fall into the first storage part 1, and the grains from the second opening pass through the upper transfer gutter 22 and are transferred to the cooling tank 5 ( 2nd storage part). In this way, even if the grain is received from the same field, it will be distributed to the upper and lower storage sections.

The same procedure is used when consecutively loading waiting grains from different fields.

When the grain filling is completed, the drying switch (not shown) is turned on to proceed to the drying process. At this time, the bottom valves 30, 30 are connected to the motor 41.
When the first tank is opened by the drive of
The grains from the storage section 1 are first dried with hot air while flowing through the ventilation drying section 3, and then the grains from the second storage section, which is connected in series, are flowed down and dried. After the dried grain is lifted up by the elevator 15, it passes through the switching valve 17 identified on the downstream side of the second opening and is transferred to the cooling tank 5 to the first storage section l.
It is returned to and tempered.

This process is repeated and the drying ends when a predetermined moisture level is reached.
If it can be stored in the storage section 1 (this can be confirmed by a grain presence sensor installed on the side of the cooling tank 5'F),
By switching the switching valve 17 to flow down to the first opening side, the elevator 1
If the grains are directly returned to the first storage part 1 from the grains 5, the drying process can be performed with less impact due to grain diffusion. In this case, the bottom valves 30, 30 are closed, and the tank fulfills its original function as a cooling tank that receives grains that have been dried in a predetermined manner and allows them to cool.

In this embodiment, a switching valve 17 is provided in the supply section between the first storage section 1 and the second storage section 5, and the supply direction is switched at predetermined time intervals. It may be configured such that half of the grains are distributed to the first storage part 1 side and the remaining half to the second storage part 5 side, respectively, by setting the grains to the second storage part 5 (FIG. 5).

In addition, in this embodiment, the first. Although a configuration in which the second storage sections are stacked vertically has been described, they may be arranged side by side on the left and right, or a plurality of sets may be connected in addition to the upper and lower two stages.

[Brief explanation of drawings]

4 is a side view, FIG. 4 is an exploded perspective view of a part thereof, and FIG. 5 is an explanatory diagram ``'' showing another embodiment. In the figure, A is a receiving pit, B, B... are grain drying devices, C is a storage hopper, D is a hulling device, E is a weighing device, 1 is a first storage section, 2 is an aeration drying section, 3 is a grain collecting section, 4 is a grain drying section, 5 is a storage tank (as a second storage section), 6.6
... is the grain flow passage, 7゜7 is the hot air chamber, 8,8...
is an exhaust chamber, 9 is a suction fan, 10 is a burner, 13 is a horizontal transfer gutter, 15 is an elevator, 17 is a switching valve, A is a first opening,
The mouth is the second opening. 20 is a transfer gutter, 22 is a transfer gutter, 26.26 is a discharge transfer gutter, 30 is a bottom valve, 35 is a discharge conveyor, and 38 is a tensioning conveyor.

Claims (5)

[Claims] (1) The storage section is divided into a first storage section 1 and a second storage section 5, which are connected in series, and the aeration drying section 2 is caused to flow down to apply drying wind to the falling grain, and an elevator, etc. The first storage section or the second storage section 1 is
. (2) A grain loading method in a grain drying apparatus according to claim 1, wherein the first storage section is set at the upper level and the second storage section is set at the lower level. (3) The first storage section is configured as a cooling tank, and after circulating and drying the grain in the second drying section, the grain is transferred to the first storage section and left to cool. A method for loading grain in the grain drying apparatus according to item 2. (4) A supply switching mechanism such as a switching valve is provided on the exit side of the circulation transfer mechanism section of the elevator, etc., and the supply switching mechanism switches between the supply state to the first storage section and the supply state to the second storage section. 2. A method for loading grain in a grain drying apparatus according to claim 1, wherein said grain drying apparatus is provided so as to be able to be distributed and supplied by operation. (5) A supply switching mechanism such as a switching valve is provided on the outlet side of the circulation transfer mechanism section of the elevator, etc., and this neutral position allows grain to be distributed and supplied to the first storage section and the second storage section. A grain loading method in a grain loading device according to claim 1.