JPS5920952B2 - Abnormality and moisture content display device in circulating grain drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a circulation type humidity control drying apparatus for drying rice and wheat among grains.

Humidity control drying is a method in which only the outer skin of unhulled rice is quickly dried using high-temperature hot air (35°C to 80°C), this unhulled rice is stored in a humidity control tank, and the dry outer skin absorbs the moisture inside. (For example, Special Publication No. 50-1946
Publication No. 2).

In this drying method, the temperature of the drying hot air is raised to the limit that causes cracking of the hulls of the unhulled rice, and then the humidity is controlled for a certain period of time, so if even the slightest abnormality occurs, the rice will become cracked.

Therefore, it is possible to install a detector in a part where it is recognized that an abnormality may occur, and use the detector to sound a buzzer or flash an indicator light to notify the presence or absence of an abnormality. It is not possible to quickly discover abnormalities just by sounding, and once
After the power is turned off and the operation is stopped, it is not in an operating state, so it is difficult to discover abnormalities, and it is also impossible to take appropriate measures.

However, with the configuration shown below, it is possible to accurately display the operation of the detectors installed in each part, so that it is possible to appropriately handle the occurrence of abnormalities, and also to prevent the occurrence of abnormalities. Changes in moisture content can be monitored from moment to moment, allowing for reliable drying.

In other words, in a circulating grain dryer, the temperature of the hot air is precisely determined, so a detector such as a thermistor that can detect the temperature is installed in the hot air supply section, and the air volume is also precisely determined. Therefore, an airflow detector that can measure the airflow is installed in the air passage, and since the inside of the elevator may become clogged with grain, a detector such as a limit switch that can detect this condition is installed, and it is necessary to install a detector such as a limit switch that can detect this condition. Since this could result in a fire, a detector to detect the operation of the fire extinguisher is installed near the fire extinguisher, and other detectors that can confirm abnormalities are installed in various places, but all of the above detectors are digital display devices. numbers such as 1, 2, and 3 or symbols such as ABC.

In other words, if the elevator malfunctions due to clogging with paddy, etc., the detector is configured to display the number "1" on the digital display, and the hot air temperature sensor is configured to display a digital display if the hot air is higher than expected. The number ``2'' will be displayed on the device, and if the temperature is lower than expected, the number ``3'' will be displayed.

Therefore, for example, if the number "3" is displayed on the digital display, this indicates that the hot air temperature is abnormally low.

Then, in addition to the above-mentioned detector, another detector that can accurately detect the temperature is installed in the area where the hot air passes, and that detector is connected to another digital display device to separately display abnormalities. The temperature of the hot air is always displayed digitally, and at the same time, a moisture content measuring device is installed so that the moisture content can also be displayed digitally at all times.

To explain the embodiment, reference numeral 1 denotes a humidity control tank, which is formed in a flow-down type, and a flow-down type drying chamber 2 is provided at the bottom of the humidity control tank 1.
are placed in communication.

The drying chamber 2 is configured so that only the outer skin of the unhulled rice is mainly dried by receiving hot air at about 35° C. to 80° C. while the unhulled rice is flowing down.

3 is a furnace that supplies hot air to the drying chamber 2.

An elevator 4 is provided on the side of the humidity control tank 1 and the drying chamber 2 to return the skin-dried unhulled rice discharged from the drying chamber 2 to the humidity control tank 1 in the upper part.

Thus, for example, the lower inlet pipe 5 of the elevator 4
Detectors 7 for detecting abnormal conditions are installed inside the furnace 3, inside the hot air supply chamber 6 from the furnace 3, or at other appropriate locations, but the detector of the present invention merely detects abnormal conditions. Rather, it displays a predetermined digital symbol.

That is, for example, if the amount of grain flowing into the elevator 4 increases directly in front of it and a clogging phenomenon occurs, a No. 1 detector 7 ( For example, a limit switch) is installed, and when the No. 1 detector I detects an abnormality, a number or symbol such as "1" or rAJ is displayed on the digital display device 8 provided at an arbitrary position of the device.

Therefore, if the number "l" is displayed on the digital display device 8, it means that the elevator structure 4 is jammed.

Further, for example, a detector T (for example, a thermistor) that detects temperatures higher than or lower than the set temperature is installed in the hot air supply chamber 6, and the detector 7 made of the thermistor is used to display the digital display device "2" or "rB". It is for display.

In this way, if necessary, a detector is installed to detect abnormalities, and the detector 7 displays "4", "5", "6", etc. on the digital display device 8 installed at any position on the aircraft. .

Therefore, in the hot air supply chamber 6, a measuring device 9 capable of measuring the temperature of the hot air is installed in addition to the detector 7 capable of detecting a state of temperature higher or lower than the set temperature. A measuring device 10 is connected to the display device 8' so as to digitally display the hot air temperature at all times, and in the humidity control tank 1 is a measuring device 10 for compressing a part of the grain flowing down and measuring the moisture content.
The measuring device 10 is further coupled for digital display to a further digital display device.

Figure 4 A: 1 port, C: digital display device 8.8', Ff
The state displayed in I is shown.

FIG. 5 shows a cautionary table 11 to be attached near the display device 8, FIG. 6 shows an example of a digital circuit, FIG. 7 shows an example of a moisture measuring device 10, and 12 shows a measuring cylinder. ,
Reference numeral 13 represents a measuring rod, and reference numeral 14 represents a motor, which performs measurements intermittently at regular intervals.

The present invention has the above-described configuration, and after filling both the drying chamber 2 and the humidity control tank 1 with unhulled rice using the elevator 4, the furnace 3 is ignited and hot air is supplied. While flowing down, the skin of the unhulled rice is dried and flows into the lower part of the elevator 4, rises into the elevator 4, and is circulated in the humidity control tank 1, where it takes 1 to 2 hours. As it flows down, the dry epidermis absorbs the internal moisture, and this
Drying is completed after repeating 6 times.

During this time, if the circulating unhulled rice becomes clogged at the bottom of the elevator 4, the detector 7 attached to the inlet tube 5 that displays "1" will detect this and send a signal to that effect to the digital display device 8. , "1" is displayed on the display device 8.

In such a case, it can be seen from FIG. 5 that the lower part of the elevator is clogged with paddy, so that countermeasures can be taken quickly and reliably.

Further, when the hot air temperature in the hot air supply chamber 6 becomes higher than the set temperature, the detector 7 in the hot air supply chamber 6 sends a signal to that effect to the digital display device 8.
The number 12 is displayed, which clearly indicates that the hot air is abnormally high in temperature.

According to the present invention, a hot air temperature measuring device 9 is installed in the hot air supply chamber 6 in addition to the detector I, so that the temperature is constantly measured, and the temperature is displayed on the digital display device 8'. The moisture content of the grain measured by the moisture measuring device 10 is displayed digitally on the digital display device 10.

According to the present invention, detectors capable of detecting an abnormality are installed at a plurality of optional locations of a circulating grain drying device, a digital display device is installed at any arbitrary position of the drying device, and the detectors and the digital display device are connected in a related manner. Since the detected failure location is displayed by replacing it with numbers or symbols, it is not only possible to easily and clearly notify the failure location, but also especially for moisture measurement that can measure moisture intermittently. Since the device 10 is provided separately and the measuring device 10 is connected to a digital display device so that the moisture content can be displayed at all times, the device is characterized in that it is easier to handle.

[Brief explanation of drawings]

Figure 1 is an overall side view, Figure 2 is an overall front view, and Figure 3 is an A.
-A sectional view, FIG. 4 is a digital display device, FIG. 5 is a diagram showing the same contents, FIG. 6 is a -fU wiring diagram of the digital circuit, and FIG. 7 is a vertical sectional side view of the moisture measuring device. Explanation of symbols, 1... Humidity control tank, 2... Drying room, 3
...Furnace, 4...Elevator, 5...Inflow pipe, 6...
・Hot air supply device, 7...detector, 8.8', Pl/-
...Digital display device, 9...Temperature measurement device, 10
... Moisture measuring device, 11... Precautions, 12...
- Measuring tube, 13... Measuring rod, 14... Motor.

Claims (1)

[Claims] 1. Attach a detector capable of detecting an abnormality at any plurality of locations of a circulating grain drying device, install a digital display device at any location of the drying device, and connect the detector and the digital display device in a related manner. The drying device is configured to digitally display the failure location by replacing it with numbers or symbols, and a moisture content measuring device is attached to the drying device, and the measuring device and the digital display device are connected in a related manner. Abnormality and moisture content display device in type grain drying equipment.