JPS5819026B2 - Dust removal device in grain dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, the upper part of a drying chamber consisting of a pair of left and right perforated plates at the bottom of a grain storage tank was connected to the grain threshing chamber, and the lower part thereof was connected to a grain threshing chamber, and a hot air chamber was installed on one side of the drying chamber. The exhaust chambers are adjacent to each other on the other side, and the hot air chambers are closed at the top, bottom, and back so that hot air is blown in from the front, and the exhaust chambers are at the top,
There is a grain dryer in which the bottom and front sides are closed, the back side is open, and this open part is communicated with a suction fan F provided at the back side of the machine body.

Then, the hot air blown into the hot air chamber is passed through a perforated plate and crosses the drying chamber to dry the grains flowing down the drying chamber to the grain threshing chamber at the bottom, and the moist folding screen is passed through the exhaust chamber to the back of the machine. The grains are discharged to the outside of the machine by a suction fan F, and the grains flowing down the drying chamber fall into the grain threshing chamber.

In this case, the hot air crosses the drying chamber, forms a folding screen, and is discharged into the exhaust chamber, so the dust mixed in with the grains in the drying chamber is also discharged into the exhaust chamber, and some of the light dust is removed from the back of the exhaust chamber. Most of the dust settles and accumulates on the bottom plate that closes the bottom of the exhaust chamber.

An object of the present invention is to easily and quickly clean the dust accumulated on the bottom plate of the exhaust chamber by using the suction force of the suction fan F described above.

To explain the present invention with reference to the embodiments shown in FIGS. 1 and 2, the upper part of the drying chamber 3 consisting of a pair of left and right perforated plates 2, 2 is attached to the bottom of the particle storage tank 1 of the machine body A. The lower portions of 3 communicate with the grain threshing chamber 12, respectively.

A hot air chamber 4 is adjacent to one side of the drying chamber 3, and an exhaust chamber 5 is adjacent to the other side.The hot air chamber 4 is closed at the top, bottom, and back, but is open at the front, and a burner, which will be described later, Blow hot air from step 7.

The exhaust chamber 5 has its top, bottom and front closed, with its back side open, and this open back side is communicated with a suction fan F provided on the back side of the body A.

5a is a front wall that closes the front of the exhaust chamber 5; 8 is the exhaust chamber 5;
It shows the bottom plate that closes the bottom of the.

It goes without saying that the outer surfaces of the left and right exhaust chambers 5 shown in FIG. 1 are closed by the machine wall.

The aforementioned burner 7 is attached to the inner surface of the door 6 attached to the front of the machine body A so as to be openable and closable, thereby blowing hot air into the hot air chamber 4 from the front opening.

Therefore, if you extinguish the burner 7 and open the door 6, the front wall 5 of the exhaust chamber
a appears externally.

In the lower part of the front wall 5a of the exhaust chamber 5 of the present invention, a small window 9 is bored on the bottom plate 8, and an opening/closing lid 10 is hinged to the upper edge of the window 9.

Further, in the present invention, as shown in FIG. 3, a small window 9' may be bored in the front of the bottom plate 8, and an opening/closing lid 10' may be hinged to one side of the small window 9'.

In the present invention, as in the prior art, the hot air blown from the front opening of the hot air chamber 4 traverses the drying chamber 3 and flows down inside the drying chamber 3 to the grain threshing chamber 12, drying the grains and making them moist. After passing through the exhaust chamber 5, the screen becomes a folding screen containing the air and is discharged to the outside of the machine from its rear discharge section by a suction fan F provided at the back of the machine body A.

However, in the present invention, occasionally, when blowing hot air is stopped and the opening/closing cover 10 or 10' is opened, the suction fan F on the back of the fuselage causes the outside air to rapidly flow through the small window 9 or 9' in front of the exhaust chamber 5. Suction the dust that has settled and accumulated on the bottom plate 8.
Eject outside the machine.

According to the present invention, the lower part of the front wall 5a that closes the front side of the exhaust chamber 5 or the bottom plate 8 that closes the bottom surface of the exhaust chamber
A small window that communicates with the outside air is made in the front part of the exhaust chamber 5, such as the front part of the exhaust chamber 5, and an opening/closing lid is attached to this window.When the small window is closed with the opening/closing lid during grain drying, the outside air is let in through the small window. The folding screen that has passed through the drying chamber 3 without entering is discharged outside the machine by the suction fan F installed on the back of the machine A. However, when the hot air is stopped and the opening/closing lid is opened, the outside air flows from the lower front part of the exhaust chamber 5. This has the effect of being rapidly sucked in by the suction fan F, and the dust that has settled and accumulated on the bottom plate 8 of the exhaust chamber is thoroughly cleaned in a short period of time and discharged to the outside of the machine.

In addition, if you stick 1 Cretan rubber on the back side of the opening/closing lid 10 or 10' so that it opens forward or upward, when the small window 9 or 9' is closed, it will be tightly sealed and will not draw in outside air unnecessarily. convenient.

In addition, in the embodiment shown in the drawings, reference numeral 11 denotes a rotary valve provided at the bottom of the drying chamber 30, whereby the grains fall into the threshing chamber 12, and are transferred to the grain lifting machine by a screw conveyor 13 horizontally installed in the trough. 14 and then returned to the grain storage tank 1, or the grains are taken out of the machine after drying.

Also, inside the door 6 is a control box 1 for the burner 7.
5 and a fire extinguisher 16.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional side view of the main part, and FIG. 3 is an enlarged longitudinal sectional side view of another embodiment of the small intake window. 1 is a grain storage tank, 2 is a perforated plate, 3 is a drying chamber, 4 is a hot air chamber, 5
is the exhaust chamber, 7 is the burner, 8 is the bottom plate, 9゜9' is the small window, 1
0 and 10' are open/close lids.

Claims (1)

[Claims] 1 The upper part of the drying chamber, which consists of a pair of left and right perforated plates on the bottom of the grain storage tank, and the lower part thereof are connected to the grain threshing room, with a hot air chamber on one side of the drying chamber and an exhaust chamber on the other side. The hot air chamber is closed at the top, bottom, and back so that hot air is blown in from the front, and the exhaust chamber is closed at the top, bottom, and front, leaving the back open. In grain dryers connected to the suction fan F provided at the back of the exhaust chamber, a small window is bored in the front of the exhaust chamber, such as at the bottom of the front wall that closes off the front of the exhaust chamber or in front of the bottom plate that closes off the bottom of the exhaust chamber. A dust removal device that communicates with the outside air outside the machine, and the small window is provided with an opening/closing lid.