JPS62178881A - Cereal grain drier - 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] Industrial applications This invention relates to a grain dryer.

Conventional technology In the past, dryers were formed in which the ventilation mesh plates on both the left and right sides forming the drying chamber had the same length in the vertical direction. Problems to be solved by the invention While the grains are fed out from this storage chamber into a drying chamber formed between ventilation mesh plates and flowed down, the hot air generated by the burner is ventilated from the hot air chamber through the drying chamber to the ventilation chamber to flow down the drying chamber. In a dryer that dries the grains inside by exposing them to this hot air, the grains flowing down the hot air chamber side of the drying chamber are exposed to high-temperature hot air, so the inside of the grains becomes high temperature. Grain quality could be reduced.

Means for Solving the Problems This invention provides a ventilation net plate (2) from an upper storage chamber (1),
(3) While the grains flow down to the drying chamber (4) formed between
) to the ventilation chamber (7) on the other side for drying. The grain dryer has a structure in which the plate (3) is placed at a higher level than the lower part and the lower part thereof is closed.

Effect of the Invention While the grains stored in the storage chamber (1) are allowed to flow down from the storage chamber (1) to the drying chamber (4), the hot air generated by the burner (5) flows from the hot air chamber (6) into the drying chamber. Ventilation is passed through the chamber (4) to the exhaust chamber (7), and the grains flowing down in the drying chamber (4) are exposed to this hot air and dried.

Effects of the Invention According to the present invention, the ventilation mesh plates (2) and (3) on the hot air chamber (6) side of the left and right ventilation mesh plates (2) and (3) forming the drying chamber (4) are
2) is placed at a higher level than the lower part of the ventilation screen plate (3) on the ventilation chamber (7) side, and by closing the lower part, the hot air chamber (6) side of the drying chamber (4) The grains flowing down are not exposed to the hot air all the way to the bottom of this drying chamber (4), and the time that the grains flowing down are directly exposed to the hot air is shortened, and the temperature inside the grains becomes high. In addition, the hot air sucked in from the upper side of the closed part of the ventilation mesh plate (2) is ventilated to the lower part of the ventilation mesh plate (3), and the hot air is removed from the ventilation chamber (7).
) side is exposed to this hot air for a longer time, and therefore the hot air chamber (6) in the drying chamber (4)
) side and the temperature of the grains flowing down the exhaust chamber (7) side are almost the same temperature, and the quality of the grains does not deteriorate during drying.

Embodiment In the illustrated example, the plate wall (9) of the dryer (8) has a rectangular shape in a 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, and the front wall plate part of the dryer (8) has a rectangular shape in plan view. 8) An operating device that controls starting, stopping, etc. This is a configuration in which a t(10) is attached.

A grain collection gutter (11) which is V-shaped in front view and has a built-in transfer spiral is provided between the central part of the lower part of the plate wall (9) and extending in the front and back direction. ) On the upper side, drying chambers (4) are installed vertically between the left and right ventilation mesh plates (2) and (3), and the grains are fed out and flowed down below the drying chambers (4) and (4). The delivery valves (12), (12) are rotatably supported, and a hot air chamber (6) is provided between the ventilation mesh plates (2), (2).
), and the lower part of the ventilation mesh plate (2) on the side of the hot air chamber (6) is provided with a closing plate (13), and the burner case (14) provided on the front wall plate is equipped with a burner case (14). (5) is built-in, and this burner (5) and the hot air chamber (6) are configured to communicate with each other, and between the ventilation mesh plates (3), (3) and the left and right wall plates. is a configuration in which air exhaust chambers (7), (7) are formed and communicated with an air exhaust fan (15) provided on the rear wall plate, and the hot air chamber (6) and the air exhaust chamber (7) ), (7) An inclined plate is provided on the upper side, a partition plate is provided on the lower side, and a motor (16) is provided at the lower part of the rear wall plate, and this motor (16) operates the grain collection gutter (11).
), the transfer spiral, the delivery valves (12), (12), and the exhaust fan (15) are rotationally driven, and the lower part of the ventilation mesh plate (2), for example, has a ventilation hole blocked. It may also be configured.

A fuel pump (1) is installed on the outer side of the lower plate of the burner case (14).
7), the fuel pump (17) sucks fuel and supplies it into the burner (5), and the combustion air is supplied by a blower provided on the outer side of the upper plate of the burner case (14). (18) is rotated by a blower motor (19) to blow combustion air into the burner (5).

A storage chamber (1) is provided above the drying chambers (4), (4), and ceiling plates (20), (20) are provided above the storage chamber (1).
A transfer gutter (21) with a built-in transfer spiral is provided, and a supply port for supplying transferred grains into the storage chamber (1) is provided in the center of the transfer gutter (21), and a feed port is provided below the feed port. The structure is such that a diffusion plate (22) is provided, and the grain is evenly diffused and returned into the storage chamber (1) by this diffusion plate (22).

The grain elevating machine (23) is attached to the front part of the front wall plate, and inside there is a bucket conveyor (20 belts stretched between the upper and lower pulleys, and the grain is fed between the upper end and the starting end of the transfer gutter (21). Tube (2
A supply gutter (2B) is provided and communicated between the lower part and the terminal end of the grain hoist (11), and a motor (27) is provided on the upper side of the grain hoist (23). The motor (27) is configured to rotate the packet conveyor (20 belt), the transfer spiral in the transfer gutter (21), the spreader plate (22), etc.

Note that the inside of the hot air chamber (6) formed between the ventilation mesh plates (2), (2) is divided into two vertically by providing a partition plate in the vertical direction, and the burner (5) is installed in the upper part of the hot air chamber (6). ), a ventilation hole may be provided in the front wall plate portion of the lower portion, and outside air may be blown from the ventilation hole portion to the lower portion. Further, the interior of the hot air chamber (6) is vertically partitioned into two stages by providing partition plates in the shape of an opening when viewed from the front, and the hot air chamber (6) is formed in the upper part, and the hot air chamber (6) is formed in the lower part. The ventilation chamber (7) is formed in the ventilation mesh plate (
3) The inside of the ventilation chambers (7), (7) formed between (3) and the left and right wall plates was partitioned into two levels, upper and lower, by providing a partition plate in the shape of an opening in front view in the vertical direction. The air exhaust chamber (7) is formed in the upper part, the hot air chamber (6) is formed in the lower part, and the partition plate provided in the hot air chamber (6) and the exhaust The partition plate provided between the air chambers (7) is connected to the hot air chamber (6).
The structure may be such that the partition plate provided inside is positioned at the upper level.

By operating the operating device (10), the dryer (8)
At the same time as the machine starts, hot air is generated from the burner (5) installed on the front wall plate, and this hot air is sent to the exhaust fan (5) installed on the rear wall plate.
15), the hot air chamber (6) ventilates the drying chamber (4), passes through the ventilation chamber (7), is suctioned and exhausted by the exhaust fan (15), and is stored in the dryer (8). The grains stored in the chamber (1) are exposed to this hot air and dried while flowing down from the storage chamber (1) into the drying chamber (4), and then the grains are dried by the feeding valve (1).
2), the grain is fed to the lower part, and the lower part transfer spiral sends it to the collecting trough (11
), the grain is transferred and discharged into the supply gutter (26), and then the grain raising machine (2
3) is conveyed to the upper part by the bucket conveyor (24) and supplied into the transfer gutter (21), and is passed through the transfer gutter (21) by the transfer spiral in this transfer gutter (21) and onto the spreading plate (22). The storage chamber (1) is transported and supplied by this diffusion plate (22).
When the grains reach a specified moisture content after being uniformly diffused and returned to the interior of the dryer and dried by circulation, the operating device (10) automatically controls the dryer (8) to automatically stop the dryer (8).

Since the lower portions of the ventilation mesh plates (2) and (3) forming the drying chamber (4) are configured so that hot air does not pass through them, the hot air flows down the hot air chamber (6) side. The grains being dried are exposed to hot air for only a short time, so they can always be consistently dried.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an enlarged cross-sectional view of a part thereof, Fig. 2 is an overall front view of the dryer partially cut away, and Fig. 3 is a partially cut-away front view of the dryer. FIG. 2 is an overall side view of the machine. In the figure, (1) is a storage chamber, (2) and (3) are ventilation mesh plates, (4) is a drying chamber, (5) is a burner, (6) is a hot air chamber,
(7) indicates the ventilation chamber.

Claims (1)

[Claims] The burner (
5) The lower part of the ventilation mesh plate (2) on the side of the hot air chamber (6) is installed to dry the hot air generated from the hot air chamber (6) on one side to the exhaust chamber (7) on the other side. is placed at a higher level than the lower part of the ventilation screen plate (3) on the side of the ventilation chamber (7), and the part below this is closed off.