JPH0338635Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a burner device in which hot air is supplied to grains filled in a grain tank installed in the fuselage, and a hot air outlet is communicated with an air guide path provided in the fuselage. The present invention relates to an improvement in a grain drying device using a suction fan that communicates with the air guide path through a grain vat placed in a grain vat.

In the past, grain drying equipment used a blower to send hot air generated by a burner device to dry the grains placed in a grain vat. In combination with the blower that supplies the air, you can mount it on the front wall of the aircraft, or you can mount the burner device on the front wall and form the blower into a suction fan and mount it on the back side. However, there is a problem in that the hot air generated by the burner device and the rotating sound of the blower create a synergistic resonance sound that causes discomfort to the operator.

As a countermeasure to this problem, as stated in Japanese Patent Publication No. 54-105360, an auxiliary building was installed on the front side of the aircraft body where the blower for supplying dry air and the exhaust fan for exhausting air were installed. There is a method of enclosing the front side of the building with this attached building so that the blower and exhaust fan are stored in the attached building, but this method not only makes the structure complicated, but also makes maintenance difficult. Another problem arises.

In addition, since the suction fan for exhaust air also has the role of suctioning and removing dust generated inside the aircraft, the suction fan is It is arranged above the layer of grain deposits in the upper part of the inner cavity of the grain tank in the body, and its discharge side is communicated with the outside of the fuselage through a duct penetrating the roof or ceiling of the fuselage, thereby There is also known a means for suctioning and removing dust floating in the space above the grain accumulation layer in the inner cavity of the grain tank to the outside of the machine together with the exhaust of hot air supplied to the grain accumulation layer. However, with this method, the suction fan is located in a large space on the dome-shaped ceiling inside the aircraft, and the wind noise from the suction fan is greatly echoed and magnified in the space above the dome-shaped interior of the aircraft. , as it generates a lot of noise, it becomes necessary to surround the outer periphery with soundproofing material, and when the suction fan is brought close to the grain outlet of the grain conveyor, the grain As the grains approach the equalizer installed below the grain outlet, the grains jutting out from the equalizer will collide with each other, impeding the action of the equalizer. Since it must be installed at a separate location, the dust suction effect cannot be achieved near the grain discharge port of the grain loading conveyor where the most dust is generated, and the efficiency of suction and dust removal cannot be improved that much. There is a problem.

The present invention was devised to solve these problems that have arisen with the conventional means, and addresses the resonance noise generated synergistically by the burner device and the suction fan provided on the front side of the fuselage, and the suction fan. The large noise caused by the wind noise reverberating and expanding in the space inside the aircraft body can be effectively reduced with a simple configuration without making the structure of the aircraft complicated. The purpose is to provide a new method that allows grain drying to be carried out efficiently in the vicinity of the grain outlet of the conveyor for loading, where the most dust is generated, without impairing the functionality of the grain drying device. do.

In the present invention, as a means to achieve this objective, a burner device that generates hot air to be sent to the grains placed in a grain tank installed in the fuselage is installed on the bottom side of the fuselage. A suction fan, whose hot air outlet is connected to a hot air guide path provided at the bottom of the machine body, and which communicates with the hot air guide path through the grain layer stretched in the grain tank, is installed on the roof of the machine body or Installed on the upper side of the ceiling, and the suction side of the suction fan is located above the grain discharge port of the conveyor for tensioning and adjacent to the grain discharge port on the roof or ceiling. The present invention proposes a grain drying device characterized in that a suction duct connects and communicates with the opening above the grain discharge port, and communicates with the grain layer through the opening above the grain discharge port.

Next, an example of implementation will be described in detail with reference to the drawings.

In Fig. 1, a is the main body of the grain drying device A, which is formed into a cylindrical shape with a vertical axis, and is built on a base B in the workshop, and the bottom side of the inner cavity of it is A floor plate 10 made of a breathable partition wall such as a net or a perforated plate is placed on a shelf in the area closer to the wall, and the empty space above the floor plate 10 becomes a grain tank 1 in which grains are placed. A vacant room below the floorboard 10 is formed as a hot air guide path c.

b is a burner device that feeds the grains loaded into the grain tank 1, and as shown in FIG. The furnace body 21 is connected and connected, and the base B is arranged at the lower part of the outer surface of the fuselage a.
The furnace body 21 is mounted on a hot air duct 22 installed above the hot air duct 22 in such a manner that the furnace body 21 is located inside the hot air duct 22 and the main body of the burner 20 protrudes from the outer surface of the hot air duct 22 (Fig. 3). 22 to the hot air guide path c through the communication port 12 provided at the lower part of the peripheral wall 11 of the fuselage a, the inside of the furnace body 21 is connected to the fourth
The hot air flowing as shown by the arrow in the figure and discharged from the hot air outlet 23 of the furnace body 21 flows into the hot air guide path c via the hot air duct 22.

d is a blower installed in the fuselage a so that the hot air sent into the hot air guide path c passes through the grain layer G spread in the grain tank 1 and is discharged. and is configured as a suction fan and mounted on the roof 13 covering the upper side of the aircraft body a or on the upper side of the ceiling,
An opening f is opened in the roof 13 or the ceiling at a portion facing above and adjacent to the grain discharge port 52a of the conveyor 52 for tensioning,
By communicating the opening f and the suction side of the suction fan d through the exhaust duct e, the suction side of the suction fan d can pass through the grain layer G stretched in the grain tank 1 as described above. It is in a state where it communicates with the hot air guide path c.

4, even if the amount of grains loaded into the grain tank 1 is large and the grain layer G deposited on the floorboard 10 becomes thick, the suction pressure of the suction fan d will cause the grains to flow into the hot air guide path c. In order for the hot air to be sent to pass through the grain layer G and be discharged toward the ceiling of the inner cavity of the grain tank 1, an air exhaust passage provided inside the shell tank 1
An exhaust pipe 40 arranged vertically at the axial center of the inner cavity
The floorboard 1 is designed to correspond to the thickness of the grain layer G through which the hot air is sufficiently penetrated by the suction pressure of the suction fan d.
At a height position raised by a predetermined height h from 0, the wind exhaust pipe 40 and the peripheral wall 11 of the fuselage a are arranged so as to protrude radially from the wind exhaust pipe 40 at a predetermined interval in a plan view. As shown in FIG. 5, the exhaust pipe 41 is formed into a louver shape with a chevron-shaped cross section that is open at the bottom, and each inner end side is connected to the exhaust pipe. It communicates with the inside of the wind exhaust pipe 40 through a communication hole provided in the peripheral wall of the wind pipe 40, and when the suction fan d operates, the hot air guide path c
The hot air inside is guided as shown by the broken line arrow in FIG.

Reference numeral 5 denotes an elevator (bucket elevator) installed along the outer surface of the machine body a in order to load grain into the grain tank 1, and a discharge tube part 51 installed at the top of the grain lifting tower 50 is attached to the machine body. It communicates with the ceiling of the inner cavity of the grain tank 1 via a conveyor 52 for tensioning, which is placed horizontally on the upper part of the grain tank 1. I'm planning on going. The hopper-shaped guide trough 52b forming the grain discharge port 52a is also open on the top side, and the open port is positioned within the opening f made in the roof 13 or ceiling of the aircraft body a. It's summery.

Reference numeral 6 denotes a conveyor for carrying out the grain loaded in the grain tank 1 to the outside of the machine, and is disposed in the empty space below the floor plate 10 constituting the aforementioned hot air guide path c. The starting end in the direction communicates with the discharge port 10a formed in the center of the floor plate 10, and the terminal end penetrates the peripheral wall 11 of the machine body a, protrudes outside the machine, and connects and communicates with the lower end of the grain lifting tower 50 described above. During the drying process, the grains that have been carried out are returned to the grain tank 1 and circulated again by the elevator 5 and the conveyor 52 for loading, and when the drying process is completed, the grains are carried out. The grains are transferred to the discharge cylinder section 5 at the upper end of the grain lifting tower 50.
1, it is taken out of the machine via the conveyor 52 for loading and a take-out gutter 53 which is switchably provided.

Reference numeral 7 denotes an auger installed on the top surface of the floorboard 10 so as to convey the grains in the grain tank 1 toward a discharge port 10a provided at the center of the floorboard 10, and a conductor housing disposed above the discharge port 10a. The base end of the rotating shaft 7a is pivotally supported by the transmitter housing 70, and when the transmitter housing 70 rotates about the vertical axis of rotation, the transmitter housing 7
0, the floor plate 10 revolves around the rotation axis as the center of revolution, and during this revolution, it rotates and the grains are carried out toward the discharge port 10a by the spiral blades 7b.

The grain drying apparatus according to the present invention constructed as described above operates as follows.

A blower (suction fan d) for sending hot air generated by the burner device b to the grains filled in the grain tank 1 is connected to the roof 13 at the top of the fuselage a.
By installing it on the top side and communicating with the upper part of the inner cavity of the machine body a through the duct e, it can be vertically separated from the burner device b disposed on the bottom side of the machine body a, and
Since the suction fan is separated from the upper part of the dome-shaped body cavity a, the location where the noise generated by the rotating sound of the blower (suction fan d) is isolated from the worker, causing discomfort to the worker. In addition to eliminating one of the noise of d and the noise generated by the hot air generated by burner device b, the synergistic resonance noise between the rotating sound of suction fan d and the hot air generated by burner device b is eliminated. You will start to lose it. Moreover, the suction fan d sucks the exhaust hot air from the upper part of the inner cavity of the dome-shaped body a, and while improving the supply of hot air to the grains, the suction fan d
Resonance of the wind noise of the suction fan d in the upper part of the inner cavity is effectively prevented, thereby improving the working environment. Furthermore, since the suction fan d is provided on the outer surface of the body a, the structure is simplified and maintenance is facilitated.

Further, the suction side of the suction fan d that communicates with the upper part of the inner cavity of the machine body a is arranged above the grain discharge port 52a of the conveyor 52 for tensioning, and the roof 13 of the machine body a
Alternatively, the grain discharge port 52 can be
The suction side of the suction fan d can be
It occupies a position very close to the grain discharge port 52a, and dust is effectively sucked right next to the grain discharge port 52a of the conveyor 52 for loading, where the most dust is generated. began to exclude
To efficiently suction and remove dust in grains.

As explained above, the grain drying device according to the present invention includes a burner device b that generates hot air to be sent to the grains loaded in the grain tank 1 installed in the machine body a.
Arranged on the bottom side of the aircraft body a, its hot air outlet 2
3 is connected to the hot air guide path c provided at the bottom of the machine body a, and a suction fan d, which is connected to the hot air guide path c through the grain layer G stretched in the grain tank 1, is connected to the roof 13 of the machine body a or The suction fan d is installed on the upper side of the ceiling, and the suction side of the suction fan d is connected to the roof 13 or the ceiling.
A suction duct e connects and communicates with an opening f opened above the grain discharge port 52a of the conveyor 52 and adjacent to the grain discharge port 52a, so that the grain discharge port 52a Since it is configured to communicate with the grain layer G through the upper opening f, the resonance noise generated synergistically by the burner device and the suction fan provided on the front side of the machine body and the suction fan. The large noise caused by wind noise reverberating and expanding in the space inside the aircraft can be effectively reduced with a simple configuration without making the structure of the aircraft complicated, and the dust sucked by the suction fan can be The grain drying can be carried out efficiently in the vicinity of the grain outlet of the loading conveyor, where most dust is generated, without impairing the function of the grain drying device.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view of a grain drying device in which the present invention can be implemented, Fig. 2 is an exploded perspective view of the burner device of the same device, Fig. 3 is a front view of the burner device of the above device, and Fig. 4 is the burner device of the above device. FIG. 5 is a longitudinal sectional front view of the furnace body, and FIG. 5 is a perspective view of the exhaust passage of the same device. Explanation of drawing symbols, A... Grain drying device, B...
Base of the workshop, G...grain layer, a... fuselage, b...
... Burner device, c ... Hot air guide path, d ... Suction fan (blower), e ... Exhaust duct, 1 ... Grain tank, 10 ... Floor plate, 10a ... Discharge port, 11 ...
Peripheral wall, 12... Communication port, 13... Roof, 20...
Burner, 20a...discharge port, 21...furnace body, 2
2...Hot air duct, 23...Hot air outlet, 4...
Exhaust duct, 40...Exhaust pipe, 41...Exhaust pipe, 5...
... Lifting machine (bucket elevator), 50 ... Grain lifting tower, 51 ... Discharging tube part, 52 ... Conveyor for loading, 53 ... Removal gutter, 6 ... Conveyor for carrying out, 7 ... Auger, 7a...rotating shaft, 7b...
Spiral wing, 70...Transmission machine casing.

Claims (1)

[Scope of utility model registration request] A burner device b that generates hot air to be sent to grains placed in a grain tank 1 installed in the machine body a is disposed on the bottom side of the machine body a, and a hot air discharge port 23 of the burner device b is disposed on the bottom side of the machine body a.
is connected to a hot air guideway c provided at the bottom of the aircraft body a,
A suction fan d that communicates with the hot air guide path c through the grain bed G spread in the grain tank 1 is connected to the roof 1 of the aircraft body a.
3 or installed on the upper side of the ceiling, and the suction side of the suction fan d is placed above the grain discharge port 52a of the conveyor 52 for tensioning on the roof 13 or the ceiling,
A suction duct e connects and communicates with an opening f opened in a region adjacent to the grain discharge port 52a, and communicates with the grain layer G through the opening f above the grain discharge port 52a. A grain drying device characterized by: