JPS5842859Y2 - Paddy dryer - Google Patents

Description

[Detailed explanation of the invention] This invention is based on the idea that when the drying process is carried out by spraying drying hot air on the paddy flowing down the drying passage, dust mixed in with the grains will flow into the combustion cylinder installed in the hot air chamber. To provide a dryer for paddy rice which is capable of safely carrying out drying work by reliably preventing rice from being combusted and being sprayed again into a drying passage and causing a fire.

Conventionally, a pair of perforated grain plates slanted downward in a feeding section located approximately in the center of the drying drum were used to create a storage chamber in the upper part of the drying drum and a suction and dust removal chamber in the lower part. compartmentalize,
The opposing surfaces of the pair of porous grain plates are formed into porous walls so that left and right drying passages are formed in the storage chamber facing the pair of porous grain plates, with the upper end connected to the storage chamber and the lower end connected to the feeding section, respectively. A rice grain dryer equipped with a hot air chamber for drying rice grains is known as described in Japanese Utility Model Publication No. 50-56566, which was filed before the present application.

By the way, in the conventionally known paddy dryer, the left and right drying passages are inclined inward from each other, so that some of the dust and crushed particles mixed in with the grains enter the drying passage together with the paddy. In the process of flowing down the hot air chamber, the dust and crushed particles enter the hot air chamber through the porous wall, and are blown up by the turbulent airflow that is superoxidized in the hot air chamber. As they are introduced into the combustion tube and burned, some of the dust and crushed particles burned in the combustion tube are ejected into the hot air chamber by the flame action and are blown against the porous wall. As a result, there was a drawback that the paddy flowing down the drying passage could catch fire and cause an unexpected fire.

Therefore, in order to solve the drawbacks of the above-mentioned known paddy dryers, the present invention was developed to solve the problem of drying of paddy by blowing the diamond-shaped hot air through the porous wall, even if part of the dust and crushed grains mixed in with the coarse grains flowing down the drying path during paddy drying work are removed. Even if a part of the dust or crushed particles enters the room, it will surely prevent some of the dust and crushed particles from flying into the combustion tube from the nozzle of the combustion tube and being burned, and then being sprayed against the porous wall again. The object of the present invention is to obtain a paddy dryer which allows drying work to be carried out under safe conditions without causing accidents such as fire outbreak during the paddy drying work.

In view of the foregoing, in order to easily achieve the above object, the present invention has a structure in which a combustion tube of a hot air generator having a flame nozzle opened at the upper part of the tip side is inserted into the hot air chamber, and This is a paddy dryer in which the opening edge of the flame opening is located above the porous wall of the hot air chamber. According to this paddy dryer, during paddy drying work, there is no direction along the drying path toward the feeding section. Even if some of the dust and crushed particles mixed in with the coarse raw materials flowing down may enter the hot air chamber through the porous wall, the diamond-shaped hot air chamber makes the flame nozzle of the combustion tube as porous as possible. It is positioned above the wall to ensure that part of the dust and crushed particles never enter the combustion chamber through the flame nozzle, and prevent them from entering the hot air chamber like this type of paddy dryer. Part of the dust and crushed particles enters the combustion tube from the flame nozzle and is burned, and then turns into sparks and is sprayed onto the paddy in the drying passage, preventing accidents that could cause a fire, ensuring safety at all times. This has the effect that paddy drying work can be easily performed under difficult conditions.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the paddy dryer according to the present invention will be described below as shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes a drying side that is formed to have a substantially hermetic shape as a whole, and inside the drying side 1 there is a pair of downwardly inclined porous flows connected at one end to a feeding section 2 disposed in the center. A storage chamber 4 is formed in the upper part by the grain plates 3, 3 and the blind flow grain plates 7, 7 which are diagonally installed in the direction of the carry-out gutter 8 which is arranged directly under the above-mentioned feeding section 2 through a narrow sorting air passage 6. , and a suction and dust removal chamber 5 is formed three-dimensionally in the lower part.

Inside the storage chamber 4, there is arranged a hot air chamber 9 in which the opposing surfaces of the perforated grain plates 3, 3 at the ventilation setting positions are formed into a porous wall 10, 10, and the other wall is formed into a diamond shape with a blind wall 11. The drying passages 12 and 12 of the same width are arranged between the porous flow grain plates 3, 3 and the porous walls 9, 9 so as to be connected to the feeding section 2 with the same slope, and Passage 12.1
The upper end of 2 is connected to the storage chamber 4, and the lower end is connected to the feeding section 2 in a merging state.

A feed-out roll 13 is rotatably mounted in the feed-out section 2, and the paddy in the drying passage 12, 12 is sucked into the dust removal chamber 5.
discharge directly into the body.

Reference numeral 14 denotes a hot air generator for superacidifying dry hot air at an appropriate temperature in the hot air chamber 9, and the apparatus 14 has a flame opening 17 of an appropriate size opened at the upper part of the tip side, as shown in FIG. , a combustion tube 15 having an intake port 18 opened on the other side intake side, and a burner 16 for burning liquid fuel housed inside the intake side of the combustion tube 15, and the combustion tube 1
5 is inserted over an appropriate length so that the flame nozzle 17 side is located inside the hot air chamber 9, and the opening edge 19 of the flame nozzle 17 is connected to the porous wall 10 which is one side wall of the hot air chamber 9. It is set under conditions such that the position is higher than .10.

20 is a suction/exhaust device provided on one side of the suction/dust removal chamber 5, 21 is a discharge screw horizontally suspended in the discharge gutter 8, 22 is an elevator attached to one side of the drying side 1, 23 is a loading device installed horizontally at the top of the drying side 1, 24 is a hot air chamber 9
This is a drop-off port provided at the bottom of the container.

Next, its effect will be explained.

At a signal, paddy is filled into the storage chamber 4 via the elevator 22 and the carry-in device 23, and when a predetermined amount has been supplied, the supply is stopped, and then the hot air generator 14. The suction/exhaust device 20 and other operating members are started.

Then, the combustion flame of the burner 16 mixes inside the combustion tube 15 with the outside air flowing from the intake port 18 side toward the flame port 17 side due to the suction action of the suction/exhaust device 20, and becomes dry hot air at a predetermined temperature. After the air is stored in the hot air chamber 9, it flows from the porous wall 10.10 to the pair of porous flow grain plates 3, 3, and sequentially flows down the drying passage 12.12 by the rotation of the delivery roll 13. The paddy is showered on the paddy to dry it, and the paddy is discharged from the feeding section 2 into the suction dust exhausting chamber 5. The paddy and dust are separated by the circulating suction sorting air, and the dust is removed from the outside by the suction exhaust device 20 along with the exhaust hot air. At the same time, the paddy is carried out to the elevator 22 by the carrying-out screw 21, and returned to the storage chamber 4 by the carrying-in device 23, thereby performing a circulating action.

By the way, in the drying work as described above, in the present invention, a hot air generator 1 having a flame opening 17 opened at the upper part of the tip side is used.
When the combustion tube 15 of No. 4 is inserted into the hot air chamber 9 , the opening edge 19 of the flame nozzle 17 is inserted into the porous wall 10 of the hot air chamber 9 .
Since the porous wall 10 is set to be located above the drying passage 12, 10 during the drying operation, the porous wall 10
．． Even if some of the dust and crushed particles enter the hot air chamber 9 through the hot air chamber 9 through the hot air chamber 10, the dust and crushed particles will fly up and
After entering the combustion tube 15 and falling to the bottom without being burned by the combustion flame, the fire flows into the delivery section 2 through the drop opening 24 provided at the bottom of the combustion chamber 9 and becomes combustible. It is possible to completely eliminate powder from being splashed onto the rice grains in the drying passage 12, 12, and the drying work can be carried out under safe conditions.

[Brief explanation of the drawing]

The drawings show one embodiment of the paddy dryer according to the present invention, in which Fig. 1 is a longitudinal sectional front view, Fig. 2 is a side view with main parts cut away, and Fig. 3 is a part of the hot air generator. FIG. 3 is a cutaway enlarged perspective view. 1...Drying cylinder, 2...Feeding section, 3.
...Pair of porous flow grain plates, 4...Accommodation chamber,
5...Suction dust removal chamber, 9...Hot air chamber, 1
0.10... Porous wall provided in the hot air chamber, 12
゜12...Drying passage on the left and right, 14...
Hot air generator, 15... Combustion cylinder, 17...
... Flame vent, 19... Opening edge of the flame vent.

Claims (1)

[Scope of utility model registration request] A pair of perforated grain plates slanted downward in a feeding section located approximately at the center of the drying barrel divides the interior of the drying barrel into a storage chamber in the upper part and a suction and dust removal chamber in the lower part. The opposing surfaces of the pair of porous grain plates are perforated so that left and right drying passages are formed in the storage chamber facing the pair of porous grain plates, with the upper end connected to the storage chamber and the lower end connected to the feeding section. On the wall,
A diamond-shaped hot air chamber with the other wall formed of a blind plate is arranged, and a combustion tube of a hot air generator having a flame nozzle opened at the upper part of the tip side is inserted into the hot air chamber, and the flame A paddy dryer characterized in that the opening edge of the mouth is located above the porous wall of the hot air chamber.