JPH0646499Y2 - Grain drying facility - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is not limited to the dust air discharge work in the dryer by the suction and air discharge action of the single absorption air discharge machine and the opening / closing operation of the opening / closing shutter. The present invention relates to a grain drying facility capable of efficiently performing a grain storage operation or a dry grain cooling operation at any time.

[Prior Art] Conventionally, an elevator is attached to the front side, and a suction / dust duct with a built-in suction / exhaust unit is attached to the rear side to suck in / exhaust dust after it has been dried. A suction-type grain dryer that can exhaust dust to the outside of the machine by wind action and when the amount of dried grain is larger than the capacity of the grain dryer, the grain is transferred to a storage tank where normal temperature air is sucked and distributed. A suction-type storage tank that can quickly cool the dry grain with high grain temperature after storage by temporarily preliminarily drying or after drying is finished by the suction and circulation action of normal temperature air is Before filing, for example, Japanese Utility Model Publication 58-81989 and Japanese Utility Model Publication
It is publicly known as described in JP-A-53-42951, respectively.

[Problems to be solved by the invention] By the way, in the conventional suction-type grain dryer and suction-type storage tank, each of them is dedicated in order to perform a concentrated dusting action of dusty air and a suctioning and distributing action of normal temperature air. It was equipped with a suction / exhaust air blower to perform the above function.

Therefore, when the suction-type grain dryer and the suction-type storage tank are provided side by side to perform the circulation drying work, the storage work, and the cooling work, the number of suction / exhaust fans is inevitably increased. However, there is a problem that the structure becomes complicated and the entire facility becomes expensive.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to suck a suction / exhaust fan built in a suction / dust duct installed in a grain dryer. By effectively using the action, even with a single suction / exhaust air blower, the switching and turning action of the opening / closing shutter not only enables the central dust removal work of the grain dryer, but also needs it in the storage tank. Accordingly, the present invention aims to provide a grain drying facility in which ambient temperature air can be sucked and distributed at any time to easily perform a preliminary drying operation for surplus grains and a cooling operation for dried grains.

[Means for Solving the Problems] In order to achieve the above object, the grain drying facility according to the present invention is provided with an elevator on the front side and is equipped with a suction / dust duct having a built-in suction / exhaust fan on the rear side. A storage tank whose lower part is formed in a funnel shape is arranged near the grain dryer, and one end of the suction / dust duct on the intake side of the suction / exhaust fan is a porous ventilation pipe arranged in the storage tank. The other end of the connected intake pipe is connected, and an opening / closing shutter that can adjust the range of opening / closing degree is rotatably mounted in the intake pipe.

[Operation] When it is desired to perform the drying operation and the preliminary drying operation in parallel, first, a predetermined amount of grain is put in the grain dryer and at the same time a predetermined amount of grain is put in the grain dryer. Excess grain that cannot be stored in the dryer is supplied to the storage tank for storage. Next, the grain dryer and the suction / exhaust air blower are moved, and at the same time, the opening / closing shutter is pivotally operated in the opening direction so that the suction side of the suction / dust suction duct and the porous ventilation pipe are in communication with each other via the suction pipe. By the way, the dry air created by the suction action of the suction / exhaust device is exposed to the grains that are circulated and flowed through the elevator in the grain dryer, and the grains are dried to a predetermined moisture content, and after being dried. The dust exhaust air is exhausted to the outside of the machine through the suction dust duct.

On the other hand, since the room temperature air is sucked and circulated in the storage tank through the porous ventilation pipe and the suction pipe by the suction action of the suction / exhaust device, the stored grains are preliminarily dried by being exposed to the normal temperature of circulation. Is.

Also, when it is desired to quickly cool dry grains with a high grain temperature to near normal temperature, if the suction blower is operated after supplying the dry grains to the storage tank, the suction effect of the suction blower causes the perforated ventilation pipe and the intake pipe. Since the normal temperature air is sucked and circulated in the storage tank through the, the dry grain is quickly cooled to near normal temperature. If a new grain is put into the grain dryer during this cooling operation, the circulation drying operation can be performed simultaneously with the cooling operation.

Therefore, not only the concentrated dusting operation in the dryer but also the preliminary drying operation or the cooling operation of the dried grain can be simultaneously and effectively performed only by the suction action of the suction / exhaust air blower composed of one machine. By adjusting the range of the opening / closing degree of the opening / closing shutter according to the working state, the air volume of the room temperature air flowing in the storage tank can be adjusted steplessly at any time, and effective work can be achieved.

[Examples] Examples will be described with reference to the drawings.

In FIG. 1 to FIG. 3, reference numeral 1 indicates that a lifting machine 2 for circulation is attached to the front side of the machine, and dust exhaust air generated after being dried on the rear side of the machine can be concentratedly discharged outside the machine. A suction-type grain dryer which is equipped with a suction / dust duct 3 having a built-in suction / exhaust blower 4 so that dry air can be exposed to a vertically flowing grain to dry it to a predetermined water content. The lower part of the elevator 2 is connected to the lower part of the grain dryer 1, and the upper part of the elevator 2 is connected to the carry-in side of the upper conveyor gutter 5 provided on the top of the grain dryer 1. 6
Is for predrying the excess grain that cannot be stored in the grain dryer 1 by the suction and circulation action of the normal temperature air, or the dry grain with a high grain temperature after the drying is completed by the suction and circulation action of the normal temperature air. The storage tank 6 is a suction type storage tank capable of being cooled to near room temperature, and the storage tank 6 has a lower part formed in a funnel shape and is installed in the vicinity of the grain dryer 1. And the storage tank 6 with the upper surface opened
One end of the upper conveyor gutter 5 is extended to the top of the
Excess grain and dry grain are supplied into the storage tank 6. A single or a plurality of perforated ventilation pipes 7 are laterally installed at a lower position in the storage tank 6, and one end of the perforated ventilation pipe 7 is a suction and dust duct on the suction side of the suction and blower 4. The other end of the intake pipe 8 connected in communication with 3 is connected, and the ambient temperature air outside is sucked and circulated in the storage tank 6 by the suction action of the suction / exhaust fan 4. Reference numeral 9 denotes an opening / closing shutter which is rotatably mounted in the ventilation pipe 8 and whose degree of opening / closing can be adjusted. By the rotation adjusting operation of the opening / closing shutter 9, normal temperature air sucked and distributed in the storage tank 6 is introduced. It is possible to adjust the air volume of the steplessly. Reference numeral 10 denotes a transfer conveyor that can transfer the grain discharged from the storage tank 6 to an appropriate place, and is disposed immediately below the storage tank 6. 11
Is the building wall.

[Advantages of the Invention] Since the present invention is configured as described above, it has the following effects.

The suction action of the suction and exhaust machine consisting of one machine and the rotation adjustment operation of the opening and closing shutter facilitate not only the grain drying work but also the dust collecting work of the dust wind generated during the drying work outside the machine. However, the required amount of room-temperature air can be sucked and distributed in the storage tank while adjusting it steplessly to perform the preliminary drying operation of the excess grain and the cooling operation of the dried grain appropriately.
As a result, the grain drying facility can be provided with a simple structure and at low cost.

[Brief description of drawings]

FIG. 1 is a side view of a grain drying facility with a part cut away and a main part broken, FIG. 2 is a rear view of FIG. 1, and FIG. 3 is an enlarged sectional view with a part cut away. is there. 1 ... Grain dryer, 2 ... Elevator, 3 ... Suction and dust duct, 4 ... Suction and exhaust fan, 6 ... Storage tank, 7 ... Perforated ventilation pipe, 8 ... Suction pipe, 9 ... Opening / closing Shutter

Claims (1)

[Scope of utility model registration request] 1. A storage tank having a funnel-shaped lower portion is provided in the vicinity of a grain dryer equipped with an elevator on the front side and a suction / dust duct with a built-in suction / exhaust unit on the rear side. The suction / dust duct on the intake side of the suction / exhaust fan is connected to the other end of an intake pipe connected to a porous ventilation pipe arranged in the storage tank at one end, and is opened / closed in the intake pipe. A grain drying facility with an openable and closeable shutter that can be adjusted in a range of degrees.