JP2530629Y2 - Dust exhaust system in solar dryer - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is based on the stir-mixing / transferring action of grains stored in a drying cabinet in a stationary state and the suction and ventilation action of hot air obtained by solar heat. A grain using solar heat that prevents dust from rising from the discharge section to the surroundings when discharged from the discharge section while drying efficiently and uniformly, and enables drying work under good environmental conditions The present invention relates to an exhaust device for a dryer.

2. Description of the Related Art Conventionally, a drying chamber is formed in an upper part and a ventilation chamber is formed in a lower part by a horizontal ventilation plate disposed in a horizontally long drying cabinet having an open upper surface, and a drying chamber is formed on the drying cabinet. A stirrer / mixer / transfer machine that transfers the grains stored in the container to the discharge section is reciprocally movable along the longitudinal direction, and stirs / mixes / transfers the grains stored in the stationary state and the hot air pumping action. Prior to the present application, a grain drying device that discharges from the discharge portion while drying efficiently and uniformly is described in, for example,
It is publicly known as described in Japanese Patent Publication No.

[Problem to be Solved by the Invention] In the conventional seed grain drying apparatus, dried grains and dust are continuously discharged from the discharge unit while being stirred and mixed by the stirring and mixing transfer device. At the time of work, there is a problem that more dust soars up around the discharge portion, which significantly deteriorates the work environment and makes it impossible to carry out efficient drying work.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to discharge dried grains, dust, and the like by an agitating mixing and transferring operation of an agitating mixing and transferring machine. Even when discharged from the garbage, it is possible to prevent dust from rising up in the drying area during the drying process, especially near the grain discharge area, and to prevent dust from being mixed into the dried grain. An object of the present invention is to provide a dust exhaust device in a grain dryer using solar heat that can perform a drying operation.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, the dust exhaust device in the solar-heat-based grain dryer uses a horizontal ventilation plate arranged in a horizontally long drying cabinet having an open upper surface. A drying chamber is formed in the upper part, and a suction chamber is formed in the lower part. A stirring and mixing transfer machine for transferring the grains stored in the drying chamber toward the discharge part is mounted on the drying housing so as to be reciprocally movable in the longitudinal direction. In the grain dryer, a grain sizing plate and a dust suction unit are provided at the upper part of the discharge part provided with a rotatable open / close shutter plate at the boundary surface with the drying chamber, and the upper part of the discharge part and the drying chamber is open. A dust suction housing having a dust suction window communicating with the dust suction housing is provided, and a discharge hopper is disposed below the discharge portion so as to face the dust suction housing.

[Operation] Now, with the discharge section closed, the grains to be dried are continuously fed into the supply side of a drying chamber provided in a horizontally long drying cabinet having an open upper surface.

Then, the stirring and mixing machine is reciprocated along the longitudinal direction, and at the same time, the hot air obtained by the solar heat is sucked from the drying chamber through the horizontal ventilation plate into the suction chamber.

Then, the introduced dried grains are transferred to the discharge section under the stirring and mixing state while maintaining a substantially constant sedimentary layer with the reciprocating operation of the stirring and mixing transfer machine, while being heated by solar heat. It is dried by taking the obtained hot air.

Therefore, the grains stored in the drying chamber in a stationary state are uniformly stirred and mixed (turned upside down) by the stirring and transferring machine that is reciprocated between the supply side and the discharge side. The grain is finished and dried to the desired moisture (eg, 15%).

Dust generated during the drying operation is sucked into the dust suction housing through the dust suction window.

Therefore, when it is desired to discharge the dried cereal, open the discharge unit and operate the dust suction device at the same time as moving the stirring and mixing transfer machine from the supply side to the discharge side. The dust that is generated when falling from the discharge hopper to the discharge hopper is efficiently sucked through the dust suction window between the discharge unit and the dust suction housing that is located above and facing the discharge hopper. Collected dust is discharged outside.

Therefore, dust does not fly around from the vicinity of the discharge portion, so that the working environment can be improved and a smooth drying operation can be efficiently achieved.

Example An example will be described with reference to the drawings.

1 to 3, reference numeral 1 denotes a horizontally long drying cabinet having an open upper surface, and a large number of ventilation holes 3 are formed at an appropriate height position in the drying cabinet 1. The horizontal ventilation plate 2 is laid, and the drying room 4 is formed in the upper part and the suction room 5 is formed in the lower part with the horizontal ventilation plate 2 as a boundary. On one side of the suction chamber 5, a plurality of suction fans 6 for sucking hot air obtained by solar heat into the suction chamber 5 are provided at intervals.

Rails 7, 7 are laid along the horizontal direction on both left and right sides of the drying cabinet 1, and a stirring and mixing transfer machine 8 is mounted on the rails 7, 7 so as to be able to reciprocate. .
The stirring / mixing / transporting machine 8 includes a traveling body 9 and a plurality of stirring / mixing rods 11 radially implanted on a rotating shaft 10 rotatably mounted on the traveling body 9. On the front end side, a stirring and mixing transfer plate 12 having a spatula shape and having an elastic body 13 at the front end side that is in contact with the horizontal ventilation plate 2 is mounted. A forward / reverse rotation motor 14 for rotating the rotating shaft 10 forward and backward is installed on one side of the traveling machine body 9, and the rotating shaft 10 on which a plurality of stirring / mixing rods 11 are implanted is connected to the traveling machine body 9. The ascending and descending is adjusted as needed by an ascending and descending motor 15 installed on one side of the robot.

Reference numeral 16 denotes a discharge unit provided at a discharge-side end position of the drying chamber 4. The discharge unit 16 includes a plurality of open / close shutter plates 18.
Are formed by a discharge window 17 and a discharge hopper 19 having a funnel shape. The discharge hopper 19 has a funnel shape. The lower end of the discharge hopper 19 is a discharge belt.
Looked at above 20.

21 is a dust-absorbing housing in which a dust-absorbing device 22 is installed at the top,
The dust-absorbing housing 21 is installed on the discharge section 16 having an open upper surface, and the front and lower surfaces of the dust-absorbing housing 21 are formed with open dust-absorbing windows 23 and 24, respectively. 25 is a sizing plate arranged so as to be inclined inside the dust-absorbing housing 21, 26
A traveling drive device for reciprocating the traveling body 9;
Reference numeral 27 denotes a drying work area formed around a solar heat permeable material 28 (for example, a phylon plate).

[Effects of the Invention] The present invention is configured as described above, and has the following effects.

Even if the grain housed in the drying chamber provided in the horizontally long drying cabinet is in a stationary state, the stirring and mixing action of the stirring and mixing transfer device that reciprocates the grain along the horizontal direction (top and bottom turning).
And the synergistic action of the suction of the solar hot air from the blower chamber, it is possible to dry accurately and uniformly, as a result,
It solves the drawback that only the grain on the suction side is dried as seen in the conventional drying equipment, and it is effective without causing cracking of the grain deposited to a considerable thickness and of deteriorating the quality. In the upper part of the discharge unit provided with a rotatable opening / closing shutter plate at the boundary surface with the drying chamber, a grain sizing plate and a dust collector are provided, and the discharge unit and the drying chamber In addition to installing a dust suction housing that forms a dust suction window that communicates with the upper part in an open manner, a lower discharge hopper is arranged on the lower side of the discharge unit so as to face the dust suction housing, Opening part of the top of the drying room,
That is, the dust flying over the entire drying work area is sucked into the dust-absorbing housing through the open dust-absorbing window. Further, when the dust mixed with the grain is discharged to the discharge hopper through the discharge portion, the rotating open / close shutter plate is used. Dust is sucked through a dust suction window through the dust collector, and the dust separated when dropped into the hopper is absorbed by a dust suction housing provided opposite to the upper portion thereof and discharged out of the machine by a dust suction machine. Can efficiently remove dust mixed in the drying machine, and can keep the entire drying machine clean to improve the drying operation conditions.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a grain dryer having a dust discharger, FIG. 2 is a vertical sectional front view showing a case where the device of the present invention is installed in a pylon house, and FIG. It is the side view of the principal part which did and was partially broken. 1 ... drying cabinet, 2 ... horizontal ventilation plate, 4 ... drying room, 5 ...
… Suction chamber, 8… stirring and mixing machine, 16… discharge section, 21…
... Suction housing, 22 ... Dust suction device, 23,24 ... Dust suction window

Claims (1)

(57) [Scope of request for utility model registration] 1. A drying chamber is defined in an upper part and a suction chamber is defined in a lower part by a horizontal ventilation plate disposed in a horizontally long drying cabinet having an open upper surface, and a drying chamber is formed on the drying cabinet. In a grain dryer in which a stirrer / mixer for transferring stored grains toward a discharge section is reciprocally movable along a longitudinal direction, a rotary opening / closing shutter plate is provided at a boundary surface with a drying chamber. In the upper part, a dust-absorbing housing provided with a sizing plate and a dust-absorber and having a dust-absorbing window communicating with the upper part of the discharge part and the drying chamber in an open manner is installed. A dust-discharging device in a solar-heat-based grain dryer having a discharge hopper disposed to face the same.