JPH04125188U - Circulating grain dryer - Google Patents

Abstract

(57) [Summary] [Purpose] There is no risk of generating a large amount of damaged grains such as lacerated grains and crushed grains when drying soybeans, and also prevents the occurrence of shell cracks and overdried grains during drying of paddy. To provide a circulating grain drying device that can [Structure] The grain conveyance system is driven by a pole number conversion motor 19, and a moisture detector 23 for paddy is installed on the grain conveyance path.
Alternatively, the moisture detector 24 for soybeans is provided so that it can be replaced and installed, and when the moisture detector 23 for paddy is attached, the pole number change motor 19 is set to high speed rotation, and the moisture detector 24 for soybeans is attached. The configuration is such that the rotation speed is changed to a low speed when the rotation speed is low.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for not only paddy and wheat, but also for damaged grains such as lacerated grains and crushed grains. This invention relates to a circulating grain drying device that can also be used to dry soybeans.

0002

[Conventional technology]

Conventionally, the storage tank was placed in the upper tier, the ventilation drying cylinder was placed in the middle tier, and the take-out tank was placed in the lower tier. An upper screw conveyor is installed at the top of the storage tank, and a lower screw conveyor is installed at the bottom of the take-out tank. Each screw conveyor is provided, with an upper screw conveyor and a lower screw conveyor. This application describes a circulating grain drying device that connects a conveyor through a circulation elevator. This method is well known, for example, as described in Japanese Patent Publication No. 48-36753.

0003

[Problem that the idea aims to solve]

By the way, in the conventional circulation type grain drying equipment of this kind, the grain conveyance system The circulation speed of grains was set based on the drying of grains such as paddy and wheat. . By the way, soybeans harvested with harvesters such as combines contain a lot of water and become soft. Because it is easily damaged, drying using a grain drying device for drying paddy and wheat is not recommended. , the circulation speed is too fast, resulting in many ruptured grains and crushed grains. Therefore, we decided to change the circulation speed of the grain between paddy drying and soybean drying. However, people often forget to change the switch when starting the drying process. If you forget to change the switching operation, especially when drying soybeans, you may end up with damaged grains such as lacerated grains or crushed grains. This has the problem of generating a large amount.

0004 The present invention was made in view of these problems of the conventional technology. The purpose of this is to use a moisture detector for paddy when drying paddy, and a moisture detector for soybeans when drying paddy. When replacing the moisture detector for soybeans, the circulation rate of the grain can be adjusted to This will automatically switch to suit the There is no risk of generating a large amount of damaged grains such as damaged grains or crushed grains, and there is no risk of generating a large amount of damaged grains such as damaged grains or crushed grains. We have developed a circulating grain drying device that can prevent grain cracking and over-dry grains. This is what we are trying to provide.

[0005]

[Means to solve the problem]

In order to achieve the above purpose, the circulating grain drying device of the present invention has an upper storage area. The storage tank is stacked three-dimensionally, with a ventilation drying cylinder in the middle stage and a take-out tank in the lower stage. An upper screw conveyor is installed at the top, and a lower screw conveyor is installed at the bottom of the take-out tank. Circulate between the upper screw conveyor and the lower screw conveyor. In the case where the upper screw conveyor and the elevator are connected via an elevator for The grain conveyance system consisting of a lower screw conveyor and a lower screw conveyor is driven by a pole change motor. A moisture detector for paddy or soybeans is installed on the grain transport route. It can be installed freely, and when a moisture detector for paddy is installed, the pole number change motor can be installed as desired. is set to high speed rotation, and when a moisture detector for soybeans is installed, it is switched to low speed rotation. It is configured so that it can be changed.

[0006] Furthermore, in the above configuration, the present invention provides a motor with four poles and six poles as a pole conversion motor. When a moisture detector for paddy is installed, the soybean When the moisture detector for 480 times and 980 times.

[0007]

[Effect]

The grain in the storage tank is ventilated and dried by the grain circulation system. It flows through the shell to the take-out tank, and also flows through the lower screw conveyor, elevator and upper stage. It is circulated by a crew conveyor and dried through ventilation.

[0008] By the way, when drying paddy, a moisture detector for paddy is installed in the circulation path of the grain. If the soybeans are dried, a moisture detector for soybeans is installed. When a moisture detector for paddy is installed in this way, the pole number conversion motor that drives the conveyance system When the soybean moisture detector is installed, the number of poles on the sensor changes to high-speed rotation. The number of poles of the conversion motor switches to low speed rotation.

[0009] If the pole number conversion motor has a switching structure between 4 poles and 6 poles, it will switch to 4 poles. , it becomes a high-speed rotation state, and when it switches to 6 poles, it becomes a low-speed rotation state. And fast The rotation speed of the pole number conversion motor in the rotating state and low speed rotating state is, for example, 1 per minute. 480 times and 980 times per minute, and when the conveyance system is driven at these rotation speeds, Suitable for drying paddy and wheat when rotating at high speed, and suitable for drying soybeans when rotating at low speed. Ru.

0010

【Example】

Examples will be described with reference to the drawings. In FIGS. 1 and 2, 1 is a dryer main body of a circulating grain drying device, A dry storage tank 2 is installed in the upper stage, a ventilation drying tank 3 is installed in the middle stage, and a take-out tank 4 is installed in the lower stage. The structure is stacked on top of each other, and the entire structure is formed into an oblong rectangular cylinder or other arbitrary cross-sectional shape. . The ventilation drying cylinder 3 is composed of a non-ventilating wall plate, and the inside of the ventilation drying cylinder 3 is is a hot air blower frame whose one side communicates with the hot air generator 7 installed on the front of the dryer main body 1. 5 and a hot air exhaust frame 6 whose lower part communicates with the takeout tank 4 are placed relatively between the frames 5 and 6. They are vertically arranged alternately to form narrow drying passages 8. And ventilation drying cylinder 3 and the take-out tank 4, that is, at the bottom of the drying passage 8. A delivery roll 9 is mounted on an axis. A suction exhaust fan 10 is installed on one side of the extraction tank 4. It is arranged. A carry-in gutter 11 is installed horizontally at the top of the storage tank 2, and the inside of this carry-in gutter 11 is An upper screw conveyor 12 is mounted on the shaft. 13 is the screw It's a wing. In addition, a lower receiving gutter 14 is installed horizontally at the bottom of the take-out tank 4. A lower screw conveyor 15 is mounted inside the lower receiving trough 14 . 16 is This is the screw wing. 17 is an elevator for circulation, the upper part of the elevator 17 is connected to the carry-in gutter 11, and the lower part is connected to the loading gutter 11. The elevators 17 are attached to one side of the dryer main body 1. It is set up. 18 is a drop opening of the carry-in gutter 11.

[0011] 19 is a pole number conversion motor, and this pole number conversion motor 19 and the upper stage are connected to each other. The crew conveyor 12 has a transmission belt between a driving pulley 20 and a driven pulley 21. It is linked by multiplying by 22. The upper screw conveyor 12, elevator 17, and lower screw conveyor 15 are They constitute a conveyance system that works together, and are linked to the upper screw conveyor 12. The pole number conversion motor 19 drives the conveyance system. The pole number conversion motor 19 is for switching between 4 poles and 6 poles. The rotation speed is 1480 times per minute, and the rotation speed when there are 6 poles is 980 times per minute.

0012 A moisture detection device for paddy is installed on the grain conveyance path at an appropriate position such as the lower part of the elevator 17. The container and moisture detector for soybeans can be installed and replaced freely, so when drying paddy, When installing a moisture detector for paddy and drying soybeans, replace it with a moisture detector for soybeans. and attach it.

[0013] Figure 3 shows the circuit configuration when the moisture detector 23 for paddy is installed, and Figure 4 shows the circuit configuration when the moisture detector 23 for paddy is installed. The circuit configuration when a moisture detector 24 for soybeans is installed is shown. In FIG. 3, 25 is a control panel (not shown in FIGS. 1 and 2, but ), and the control panel 25 includes the pole number conversion motor. 19 is connected.

[0014] As shown in Figure 3, when the moisture detector 23 for paddy is installed, the connection between its terminals is Depending on the situation, the circuit of the control panel 25 changes the number of poles of the motor 19 to 4 poles, and the soybean When the moisture detector 24 is installed, the control panel 25 may be The circuit changes the number of poles of the motor 19 to six poles.

[0015] According to the embodiment configured as described above, the moisture detector 23 for paddy is installed. Then, the pole number conversion motor 19 that drives the conveyance system switches to 4 poles and rotates at high speed. When it switches to six poles, it enters a low speed rotation state. And high speed rotation state In this case, the grain circulation speed is suitable for drying paddy and wheat, and at low speed, it is suitable for drying soybeans. The circulation speed of grain is suitable for drying, so it is possible to switch between paddy and soybeans at the beginning of drying. Even without feeding, paddy grains do not have cracked shells or over-dried grains, and soybean grains do not suffer from cracking or over-drying. No damaged grains such as lacerated grains or crushed grains occur.

[0016]

[Effect of the idea]

Since the present invention is configured as described above, it produces the following effects. When drying paddy, use a moisture detector for paddy, and when drying soybeans, use a moisture detector for soybeans. Simply change the grain circulation speed to suit paddy or soybean. Damaged grains such as lacerated grains and crushed grains can be removed during soybean drying. There is no risk of generating a large amount of grains, and there is no risk of cracking or overdrying of grains when drying the paddy. can be prevented from occurring

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of a circulating grain drying device.

FIG. 2 is a side view of the circulating grain drying device with main parts cut away.

FIG. 3 is a circuit diagram of main parts showing a state in which a moisture detector for paddy or a moisture detector for soybeans is installed.

[Explanation of symbols]

1 Dryer body 2 Storage chamber 3 Ventilation drying cylinder 4 Take-out tank 12 Upper screw conveyor 14 Lower screw conveyor 17 Elevator 19 Pole conversion motor 23 Moisture detector for paddy 24 Moisture detector for soybeans 25 Control panel

Claims (2)

[Scope of utility model registration request] [Claim 1] A storage tank in the upper stage, a ventilation drying cylinder in the middle stage,
Take-out tanks are stacked three-dimensionally on the lower level, an upper screw conveyor is installed above the storage tank, and a lower screw conveyor is installed below the take-out tank, and an elevator is installed for circulation between the upper screw conveyor and the lower screw conveyor. wherein the grain conveyance system consisting of the upper screw conveyor, the elevator and the lower screw conveyor is configured to be driven by a pole number change motor;
Moisture detectors for paddy or soybeans are installed on the grain conveyance route so that they can be replaced and installed, and when the moisture detector for paddy is installed, the pole number conversion motor is rotated at high speed, and the moisture detector for soybeans is A circulating grain drying device characterized in that it is configured to switch to a low speed rotation state when a container is attached. [Claim 2] As a pole number conversion motor, one with a switching structure between 4 poles and 6 poles is used, and when a moisture detector for paddy is installed, the motor is set to 4 poles, and when a moisture detector for soybeans is installed, it is set to 4 poles. Switched to 6 poles, each rotating at 1480 rpm
The circulating grain drying apparatus according to claim 1, wherein the drying time is 980 times.