JP2966942B2 - Granular material drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a granule drying apparatus for drying granules such as seeds.

[0002]

2. Description of the Related Art Japanese Unexamined Utility Model Publication No. 55-32986 discloses a conventional technique for drying a grain while conveying it. This publication discloses a configuration in which a spiral stirring blade that is orthogonal to the conveying direction is provided above the belt conveyor in order to uniformly dry the whole grains while conveying the grains while conveying the same on a belt conveyor. Also, the one disclosed in Japanese Utility Model Laid-Open No. 57-62889,
Hot air is supplied below the inclined downflow path where the grains flow,
Above the inclined downspout, a diffusion drum for diffusing grains is rotated.

[0003]

These conventional devices are:
In either case, the grains are dried while being transported, but there is a drawback that the structure is complicated because a special stirring device is provided for stirring the grains during the transport. Therefore, the present invention provides a method of drying granular materials in the process of being conveyed by a gas-permeable conveying device by blowing hot air upward from below and drying while stirring the granular materials using ventilation from below to above. Another object of the present invention is to provide a device capable of favorably preventing spilling of agitated particulate matter from a gas-permeable conveying device.

[0004]

The present invention employs the following technical means in order to solve the problems of the prior art. That is, the present invention provides a permeable transport device 2 for transporting grains from the transport start end toward the transport end side in the transport box 1, and a transport transport start end below the permeable transport device 2. Hot air can be sent, and a portion corresponding to the transport end side can be supplied with hot air or outside air at a temperature lower than the hot air. This is an apparatus for drying particulate matter, which is provided with an air discharge drum 9 for collecting hot air and / or outside air sent from below to above and discharging the hot air and / or outside air to the outside of the apparatus.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. The transport box 1, which is composed of a frame, front, rear, left and right side plates and a bottom plate, and is open only on the upper side and has a closed state on the other side, is composed of a vertically permeable mesh belt. The air permeable transport belt is rotatably supported by rollers 3, 3 on the transport start end side and the transport end side. The lower part of the permeable transport belt 2 of the transport box 1 is divided into a transport start end side and a transport end side of the permeable transport belt 2 by a partition plate 4, and a heat source (shown in FIG. For example, hot air heated to 35 ° C. is blown by a blower fan (not shown) capable of sending, for example, 87 cubic meters per minute. The outside air inlet 5 through which the outside air is blown or the outside air is sucked is opened.
A configuration may be adopted in which hot air having a lower temperature than the hot air on the transport start end side is blown from the outside air inlet 5. ). Note that 6,
6, ... are wind direction adjusting plates for changing and adjusting the blowing direction,
7 is a supply hopper for seeds and the like, and 8 is a discharge hopper.

Reference numeral 9 denotes an air exhaust drum provided above the air-permeable transport belt 2.
Has a function of collecting hot air and outside air sent from the side and flowing upward through the permeable transport belt 2 and discharging the hot air and outside the machine,
A suction fan (not shown) capable of sucking an air flow larger than the amount of hot air flowing into the transport box 1 and the amount of outside air is connected to the air outlet 10 of the air discharge drum 9. In order to equalize the amount of hot air and outside air passing from the start side to the end side of the air-permeable conveyor belt 2 toward the end of the conveyance, the air duct 9 extends from the start end to the end side of the air duct 9. Are provided at the ends of the regulating plates 11, 11,..., Respectively, at which adjusting plates 12, 12,. Also, a slight space is provided between the left and right ends of the air permeable conveyor belt 2 and the left and right plates 1a, 1a of the conveyor box 1 so that air flows from below to above. The left and right plates 9a, 9a, in which the lower side of the exhaust duct 9 is located on the left and right sides and the upper side is located on the inner peripheral side, are located in the portion where the kernels above the left and right ends of the flexible conveying belt 2 are floated and stirred. As a configuration, it is possible to prevent the grains in the floating and agitated state from dropping from the air-permeable conveyor belt 2 due to the wind flowing obliquely from outside to inside along the left and right plates 9a, 9a.

In this embodiment, the granular material conveying device is constituted by the permeable conveying belt 2. For example, the granular material conveying device is provided on a conveying plate inclined downward from the conveying start end to the conveying end side. It is also possible to adopt a configuration in which a number of small holes that do not leak are formed into a sweep floor shape in which a number is formed, and the granular material is conveyed while being levitated and vibrated by ventilation from below, and the present invention is not limited to this embodiment. Although the adjusting plate 12 is manually adjusted, a detector (not shown) capable of detecting whether or not the grain being conveyed is in a floating stirring state by ventilation from below above the air permeable conveying belt 2. ) Is provided, and the adjusting plate 12 is adjusted based on the detection result to adjust the air flow rate in the entire conveying process of the permeable conveying belt 2 so that the grains are floated and agitated so as to be dried uniformly. The temperature of the grains during or after the conveyance by the air-permeable conveyance belt 2 is detected by a detector (not shown), and depending on the detected temperature, the amount of hot air or the outside air or the temperature of the hot air is adjusted or the air is blown. To adjust the transport speed of the compliant transport belt 2,
Alternatively, the moisture content of the dried seeds may be detected by a moisture meter (not shown), and the transport speed, the amount of hot air, the amount of outside air, or the temperature of the hot air may be adjusted according to the detection result of the moisture.

Next, the operation of the embodiment will be described. When the seeds immersed in the chemical solution are dried, when the seeds immersed in the supply hopper 7 are supplied, the seeds are supplied from the downflow port of the supply hopper 7 to the transport start end of the air-permeable transport belt 2 and are moved toward the transport end. Conveyed. Hot air flows from the lower side to the upper side on the transport start end side of the transported seeds, and the transported seeds are floated and agitated from the transport surface of the permeable transport belt 2 so that drying is uniform. Further, the floating and agitating seeds are prevented from spilling by the wind flowing from the outside to the inside along the left and right plates 9a, 9a which are inclined at the left and right sides of the air permeable conveying belt 2. Further, on the transport end side of the air-permeable transport belt 2, low-temperature hot air or outside air flows upward from below to cool the seeds, thereby preventing quality deterioration due to stuffiness of the dried seeds.

[0009]

As described above, the granular material such as seeds is dried and floated and agitated by the hot air that flows upward from below in the process of transporting the gas permeable conveyance belt 2, so that the gas permeable conveyance belt 2 There is no need to provide a special agitating device above, and the configuration can be significantly simplified. In addition, the air flows between the left and right ends of the air permeable conveying belt 2 from the outside to the inside, so that the air is lifted. The falling of the particulate matter during the stirring is well prevented.

[Brief description of the drawings]

FIG. 1 is an overall side view.

FIG. 2 is an overall plan view.

FIG. 3 is a rear view

FIG. 4 is a cut front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyance box 2 Air permeable conveyance belt (air permeable conveyance device) 3 Roller 4 Partition plate 5 Outside air inflow port 6 Wind direction adjustment plate 7 Supply hopper 8 Discharge hopper 9 Exhaust drum 10 Exhaust port 11 Regulation plate 12 Adjustment plate

Continuation of the front page (56) References JP-A-4-93586 (JP, A) JP-A-2-28663 (JP, A) JP-A-59-36834 (JP, U) JP-A-61-205390 (JP, A) , U) Japanese Utility Model Sho 55-32986 (JP, U) Japanese Utility Model Sho 57-62889 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F26B 21/00 F26B 9/06

Claims (1)

(57) [Claims] An air-permeable transport device for transporting grains from a transport start end toward a transport end side is provided in a transport box, and a hot wind is provided below the air-permeable transport device in the transport transport start end. And a portion corresponding to the transport end side can be supplied with hot air or outside air at a lower temperature than the hot air, and the upper portion of the permeable transport device 2 passes through the permeable transport device 2 An apparatus for drying a granular material, comprising an air exhaust drum 9 for collecting hot air and / or outside air sent from below to above and discharging the hot air and / or outside air to the outside of the apparatus.