JPS6018912B2 - grain drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a ventilation drying section in a grain drying apparatus.

Generally, the drying section of a circulating grain dryer includes a ventilation chamber, . An example of a drying room equipped with a rotary valve at the bottom and a 9E wind room arranged in parallel.A hot air generator is installed on one side and an exhaust fan is installed on the other side.Hot air is distributed into the grain layer in the dry window room. Drying is performed by passing the hot air through the drying chamber, but unless consideration is given to a structure that uniformly supplies hot air to the drying chamber, drying spots may cause damage to grains such as split grains.

To solve the above problem, for example, each ventilation chamber provided on both sides of the inside of the machine in the ventilation drying section can be connected in a lotus shape through a ventilation chamber provided at the front of the inside of the machine. A hot air dissipation tube with an intake window closed is pivoted, and a fire heat generator is installed in front of the intake window, and an exhaust chamber is installed at the end of the tube in an exhaust chamber provided in the center of the machine in the ventilation drying section. An air suction cylinder equipped with an air fan and having a large number of intake windows in its cylinder body is arranged in a structure, and rotates with the rotation axis of the exhaust fan and the rotation axis of the hot air dispersion cylinder being the same axis. A drying device designed to do this is known as Jitsukki No. 49-83278, which sucks hot air from a fire heat generator and outside air flowing in from outside the machine into a hot air scattering tube, and scatters the flies. Isothermal hot air is discharged from the tip of the cylinder into the ventilation chamber in a circular flow, and the divided flow is supplied to each ventilation chamber.
On the E-air chamber side, a wind suction pipe equipped with an intake window that takes in air evenly across the entire width of the drying chamber is rotated, so the amount of hot air passing through the drying chamber is controlled equally and dry patches can be prevented. However, it is necessary to rotate the hot air lantern and the wind suction pipe at the same speed as the exhaust fan, which increases the required power and requires manual labor to inspect and adjust the rotation.

In order to solve the above-mentioned problems, the present invention provides a structure-like guide air passage in the ventilation drying section, which is formed by installing drying chambers in parallel and installing a 9E wind fan/fire heat generator, to form two drying chambers. In addition, an exhaust fan and a fire heat generator are installed inside the central air chamber of each divided room to simplify the structure and eliminate obstacles in the arrangement. The purpose of the present invention is to develop and provide a new device that can efficiently and uniformly supply hot air to ensure high-quality dried products without uneven drying.

To explain the present invention with reference to the drawings, reference numeral 1 in the drawings is a box-shaped drying section machine, in which a grain tank 2 is mounted on the upper part of the core machine 1, and an elevator 3 is installed upright on the - side of the grain tank 2 to form a circulating system. This is an integrated ventilation dryer.

Next, regarding the internal structure of the drying section body 1, the body 1
A grain feeding tank 4 is mounted on the lower side of the interior, and connected to the grain feeder 6 so that the dried grains flowing down into the tank can be sent to the elevator 3, and a drying room 5 is installed above it, and a drying room 5 is installed in the center. A ventilation drying section 8 is formed by stacking a ventilation chamber 10 and a ventilation chamber 11 in parallel.

Therefore, the drying section 8 will be described in detail in the first embodiment.The drying chamber 5 is formed with porous walls 7 on both sides, the upper part thereof is connected to the grain tank 2, and the lower part thereof has a discharge valve 9 pivoted thereon. The grains accumulated in the drying chamber 5 are discharged into the lower flow grain tank 4 in an intermittent manner by the rotation of the valve 9, and a central air chamber 10 is provided inside the drying chamber 5 which is arranged side by side. Ventilation chambers 11, 11 are installed on both outside sides, and each of these chambers 5, 10
, 11 is approximately at the center in the longitudinal direction, and a guide air passage 12 is installed on the orthogonal sides to divide the field into two fields A and B, and a blocking plate 13 is placed horizontally in the middle of the guide air passage in the vertical direction. The wind tunnel section 14 is divided into an upper half wind tunnel section 14 and a lower half wind tunnel section 15, and entrance sections 16a, 16b, and 16c are respectively opened on both side walls of the upper half wind tunnel section 14 in the direction of the dotted line a in FIG. The structure is formed so that hot air flows, and closed portions 16d are provided on both side walls of the lower half wind tunnel portion 15.
, 16e, and 16f are respectively opened, and the exhaust fan 18 is installed by iron on the side wall 17 of the central air chamber 10 on one side of each chamber A, B so that the hot air flows in the direction of the arrow shown by the dashed dotted line b in FIG. death,
A fire heat generator 20 is mounted on the side wall 19 of the central air chamber 10 on the other side, and the hot air passes laterally through the porous walls 7, 7 on both sides of each drying chamber 5 to ventilate and dry the grains in each chamber 5. It is designed to do so. FIG. 6 shows a second embodiment, in which a guide air passage 21 is installed horizontally on sides perpendicular to each other at approximately the center in the longitudinal direction of each chamber 5, 10, 11, and on both side walls of the air passage 21. Opening section 22a
, 22b, 22c, 22d, and 22e, and a flow rate regulating valve 23 is pivotally connected inside the air passage 21 so as to be able to open and close, so that the hot air flows in the direction of the double-dotted line c arrow in the figure. The drying chamber 5 is formed so that hot air passes through the porous walls on both sides in the lateral direction, thereby allowing the grains in each chamber to be ventilated and dried.

Since the present invention is configured as described above, when the raw material grain is supplied to the upper grain tank 2, the drive part of the device is rotated, and the fire heat generator 12 is ignited, the grain is supplied to the grain tank 2. The grains flow down and accumulate in the drying chambers 5 of each of the drying chambers A and B, and are gradually discharged from the lower end of each chamber 5 into the grain tank 4 by rotating the lower discharge valve 9, and from the grains 4 into the elevator. The grains are returned to the upper grain tank via the grain tank 3 and circulated within the machine.

On the other hand, the hot airflow generated by the fire heat generator 20 is
The air is sucked into the exhaust fan 18 through a guide air passage 12 installed horizontally between the fields and provided with a thin number of closed parts on arbitrary walls on both sides to allow the arbitrary air chambers of both fields to communicate with each other. The grains flow in the directions of arrows a and b in FIGS. 3 and 4, pass laterally through the porous walls of the drying chambers 5 provided in each of the drying chambers A and B, and the grains in the chambers 5 flow. The material is ventilated and dried. In this way, the present invention provides a central ventilation chamber inside the drying chambers that are arranged side by side in the desiccant machine, and ventilation chambers are installed on both sides of the desiccant machine, and each of these chambers is connected to the sides orthogonal to each other at approximately the center in the longitudinal direction. A guide air passage is installed horizontally in the field to divide it into two air chambers, and an appropriate number of closing portions are provided on arbitrary walls on both sides of the guide air passage to allow the arbitrary air chambers of both chambers to fit into each other. An exhaust fan is installed in the side wall of the central air chamber on one side, and a heat generator is installed in the side wall of the central air chamber on the other side, so that hot air is evenly supplied to the drying chamber. Therefore, there is no need for complicated equipment such as a rotating mechanism, and hot air with low loss is supplied in equal amounts to the drying room divided into 4 sections in each field through the guide air path, and the grain in each room is Since it has a drying effect on the skin, dry spots are completely prevented, and
Efficient drying air ensures high quality dry matter with an appropriate moisture content, and each field is equipped with an exhaust fan and heat generator, making the structure extremely simple and easy to install. This has the effect of improving and rationalizing the work environment by removing obstacles.

[Brief explanation of drawings]

The drawings illustrate embodiments of the present invention; FIG. 1 is a partially cutaway side view of the first embodiment, FIG. 2 is a side sectional view thereof, and FIG. 3 is a cutaway at the upper half of the ventilation drying section. FIG. 4 is a plan sectional view taken at the lower half of the ventilation drying section, FIG. 5 is a perspective view of the ventilation drying section, and FIG. 6 is a plan sectional view of the second embodiment. 1... Aircraft, 2... Grain tank, 3...
・Elevator, ... Grain tank, 5 ... Drying room, 6 ... Grain feeder, 7 ... Porous wall, 8.
... Ventilation drying section, 9... Discharge valve, 10.
... Central wind chamber, 11 ... Ventilation chamber, 12 ... Guide air passage, 13 ... Blocking plate, 14 ... Upper half wind tunnel section, 1
5...Lower half wind tunnel section, 16a, 16b, 16C. 16
d, 16e, 16f... Sekiguchi section, 17...
...Side wall part, 18...Exhaust fan, 19...
・Side wall part, 20... Fire heat generator, 21...
・Guiding air passage, 22a, 22b, 22c, 22d, 22
e...Closing part, 23...Flow rate control valve, A...
...Liu room, B...Drama room, a...Dotted line, b
...--dotted chain line, c... two-dot chain line. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1 A drying room is installed in parallel on the upper side, equipped with an exhaust fan and a fire heat generator, and a grain tank is installed on the lower side to form the drying section body.
In the circulation drying device, in which a grain tank is mounted on the upper part of the machine and an elevator is installed on one side thereof, a central ventilation chamber is provided inside the drying chambers arranged in parallel with the drying section body, and ventilation chambers are provided on both outside sides. Each of these chambers is divided into two fields by horizontally installing a guide air passage on the orthogonal sides at approximately the center of the longitudinal direction, and an appropriate number of air guide passages are installed on arbitrary walls on both sides of the guide air passage. An opening is provided to allow the optional air chambers of both fields to communicate with each other, and an exhaust fan is inserted into the side wall of the central air chamber on one side, and a fire heat generating system is installed on the side wall of the central air chamber on the other side. Grain drying equipment equipped with a machine.