JPH0364797B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a grain dryer.

[Prior art and problems to be solved by the invention]

Burners for grain dryers are usually installed in a protruding manner outside the dryer body so that the flame can be directly supplied to the hot air chamber in correspondence with the entrance of the hot air chamber, but in order to make it possible to reduce the installation space, This burner was installed in the space between the grain harvesting room and the side frame of the drying machine body, and the hot air was diverted to the back side of the machine body and supplied to the hot air room (Japanese Utility Model Publication No. 48-7960).

However, in the configuration described in this publication, the flame travels through a relatively long mixing cylinder to the hot air mixing chamber and the hot air blower frame due to the jet action of the axial flow rotor near the burner, so the combustion state of the burner does not change. It is not easy to confirm.

[Means to solve the problem]

This invention attempts to eliminate the above-mentioned drawbacks, and includes a dryer body 1 composed of left and right side frames 2, 3, front and rear side frames 4, 5, and a ceiling frame 6, and an upper part of this dryer body 1 for storing grains. A ventilation frame 11, 12, 13, 14 is provided in the lower part of the storage chamber 7 and extends in the front and back direction at a predetermined interval in the left and right direction.
A hot air chamber 17 is provided on the outside of one of the ventilation frames, and exhaust chambers 18 and 19 are provided on the outside of the other ventilation frame to form grain drying channels 15 and 16 between the two ventilation frames. Grain feeding devices 21, 2 on the lower side of 15, 16
2 is provided, and further below the feeding device 21, 2 is provided.
A grain harvesting chamber 23 is provided to store the grains fed out by the grain storage chamber 7, and a grain hoist 25 is provided between the grain harvesting chamber 23 and the grain storage chamber 7 to raise the grains in the grain harvesting chamber 23. In a circulating dryer that sends grains to a storage chamber 7, a burner 2 is installed on the front side of the dryer body 1 in a space between the grain harvesting chamber 23 and the side frame 3 of the dryer body 1.
A hot air guide frame 33 is provided to form a hot air passage 28 that extends between the hot air passage 28 and the hot air chamber 17 inlet side that passes through the exhaust fan 32 and acts on the suction air. The grain dryer is configured to be detachable and has an opening/closing plate 27 provided on a part of the side frame of the dryer body 1 corresponding to the side of the burner 26.

[Operation and effect of the invention]

The hot air from the burner is not sent straight into the hot air chamber, but is supplied through the hot air passage to bypass the front frame, but at this time the burner flame is sucked in by the suction air acting on the hot air chamber. Because of this, the burner can be placed as close to the hot air guide frame as possible, and therefore hot air can be supplied into the hot air chamber with little loss.

Incidentally, when inspecting the burner, it can be easily checked visually by removing the hot air guide frame 33, and the burner can be installed and removed by opening the hot air guide frame 33 and the opening/closing plate 27. It is possible to pull out or attach the cover with both the holder and the holder, making it easy to attach and detach.

〔Example〕

An embodiment of this invention will be described based on the drawings.

Reference numeral 1 denotes a dryer body, which is configured into a box shape by a left side frame 2, a right side frame 3, a front side frame 4, a rear side frame 5, and a ceiling frame 6.

Reference numeral 7 denotes a grain storage chamber, which is located at the upper part of the drying machine body 1. A vertically installed ceiling transfer spiral gutter 8 is installed on the ceiling of the chamber, and a transfer end is located at the front and rear intermediate portions, and a grain storage chamber 7 is located at the upper part of the dryer body 1. A rotating body 9 for partial loading is suspended. 10 indicates a ceiling transfer spiral.

Reference numerals 11, 12, 13, and 14 are ventilation frames, each of which has a funnel shape at the bottom of the storage chamber 7, and is erected in series with the bottom of the funnel. Grain drying channels 15 and 16 are formed between the frames 13 and 14.

17 is a hot air chamber, which connects the grain drying channels 15 and 16;
is formed between. Reference numerals 18 and 19 indicate ventilation chambers, which are formed outside the grain drying channels 15 and 16, and both communicate with a duct 20 in which a ventilation fan 32 is installed.

Reference numerals 21 and 22 denote grain feeding devices, which are provided below the grain drying channels 15 and 16.

23 is a grain harvesting room, and the grain drying channel 15, 16
It is provided below the hot air chamber 17 and has a substantially V-shaped configuration when viewed from the front, and a transfer spiral 24 is provided in the V-shaped groove.
is provided to transport grains flowing down into the grain harvesting chamber forward.

Reference numeral 25 denotes a grain hoist, which lifts the grains sent forward by the transfer spiral of the grain harvesting chamber 23 and supplies them into the ceiling transfer spiral gutter 8, and then transfers the grains into the storage chamber 7. It is for the purpose of giving back.

A burner 26 is disposed between the grain harvesting chamber 23 and the right side frame 3, which is one of the side frames, with the blowing side of the burner facing forward.

Reference numeral 27 denotes an opening/closing plate, which is provided in a side frame portion of the burner 26 storage area so as to be openable and closable.

28 is a hot air passage formed by the front side frame 4 and the hot air guide frame 33, and the position facing the burner 26 is connected to the opening 2.
9, this opening communicates with the front side of the hot air chamber 17. Numerals 34, 34, . . . are fixing bolts that attach and fix the hot air guide frame 33 to the front frame 4 of the dryer body 1.

30 is a hopper for loading grain, and the grain raising machine 25
It is located at the bottom of the . Reference numeral 31 indicates a viewing window, and a fireproof transparent plate is provided.

In the configuration of the above example, the grains to be dried are
Grain is loaded from the hopper 30 to the grain hoisting machine 25, to the grain storage chamber 7 via the ceiling transfer spiral gutter, and to the feeding devices 21, 2.
When the grains are fed downward in step 2, the grains in the storage chamber 7 gradually flow down the drying channels 15 and 16 to the grain harvesting chamber 23.
is discharged to.

In this state, the hot air from the burner 26 is sucked into the hot air chamber 17 through the hot air passage 28 protruding outward from the front plate 4, and further from the hot air chamber 17 into the grains in the drying channels 15, 16. The air is sucked into the exhaust chambers 18 and 19 and discharged to the outside of the machine. At this time, the grains are dried by passing hot air through them.

However, the hot air from the burner 26 detours through the hot air passage 28 and becomes uniform in temperature before being sucked into the hot air chamber 17, so that uniform drying performance can be obtained.

In this way, the dried grains discharged into the harvesting chamber 23 are sent to the grain raising machine 25 by the lower transfer spiral 24, and then sent to the storage chamber 7 again.

When inspecting the combustion state of the burner 26, it can be easily checked visually by removing the hot air guide frame 33, and the burner 26 can be attached and detached from the front side by opening the hot air guide frame 33 and the opening/closing plate 27. It is possible to pull out or install the device from both the side surface and the device, making it easy to attach and detach.

[Brief explanation of drawings]

The figure shows one embodiment of this invention.
The figure is a side view, FIG. 2 is a front sectional view, and FIG. 3 is a perspective view of main parts. Symbols in the figure: 1 is the dryer body, 2 is the left frame, 3 is the right frame, 4 is the front frame, 5 is the rear frame, 6 is the ceiling frame, 7
11, 12, 13, 14 are ventilation frames, 15, 16 are grain drying channels, 17 is a hot air chamber, 18, 19 are ventilation chambers, 21, 22 are grain feeding devices, 23 is a grain harvesting room, 25 is a grain hoist, 26 is a burner, 27 is an opening/closing plate, 28 is a hot air passage, 32 is an exhaust fan, 33 is a hot air guide frame, and 34, 34, . . . are fixing bolts.

Claims (1)

[Claims] 1 The dryer body is composed of the left and right side frames, the front and rear side frames, and the ceiling frame. An upright ventilation frame extending in the front-rear direction is provided, a hot air chamber is provided outside one of the ventilation frames, an exhaust chamber is provided outside the other ventilation frame, and the space between the two ventilation frames is used as a grain drying channel. None, a grain feeding device is provided below this drying channel, and a grain harvesting chamber is provided below it to store the grains fed by the feeding device and flowing down. In a circulating dryer in which a grain raising machine is provided between the grain storage chamber and the grains in the harvesting chamber are fed into the storage chamber, there is a space between the grain harvesting chamber and the side frame of the dryer body on the front side of the dryer body. A hot air guide frame is provided to form a hot air passage extending between the burner section disposed in the space between the burners and the hot air chamber entrance side where the suction air flows through the exhaust fan, and the hot air guide frame corresponds to the outlet side of the burner. A grain dryer in which a frame is configured to be detachable and an opening/closing plate is provided on a part of the side frame of the dryer body corresponding to the side part of the burner.