JPS61258155A - Water measuring system of grain - Google Patents

Abstract

PURPOSE:To detect exactly water value in a short time, and also to decrease a loss of a grain without crushing superfluous grains, by receiving the grain which is supplied by one grain each, inserting and pressing, and crushing it by a detecting roll, also detecting its water and calculating the average value of the detected water value being in a set range. CONSTITUTION:A grain supplied by one grain each by a supply device of the grain is received, the supplied grain is inserted and pressed, and crushed by a detecting roll 1, and also its water is detected. When a detected water value of the grain detected by this detecting roll 1 detects a detected water value being within a range of a set water value by a prescribed number of times, a control device brings the water detection of the grain to a stop control, and brings this detected water value which is detected by the prescribed number of times, to a calculation control.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a grain moisture measurement method.

Conventional technology Conventionally, in a moisture measuring device, the grains being dried are fed one by one by a feeding device, crushed under pressure by a detection roll, and also detected for moisture. The method was to stop moisture detection after a number of detections, and calculate the average value of all the detected moisture values detected during this period.

Problems to be Solved by the Invention While the grains housed in the dryer are fed out from the drying chamber to the lower part and circulated downward, hot air generated from a burner is ventilated into the drying chamber to remove the grains flowing down in the drying chamber. While drying by exposing to this hot air, some of the drying grains are transferred and fed one by one onto a detection roll using a feeding device, and the detection roll simultaneously crushes the crushed grains with pressure and removes the water content. In a moisture measuring device that detects water, if the number of detections performed by this detection roll is small, accurate moisture values cannot be detected, so the number of detections is increased, but increasing the number of detections may require a longer detection time or cause pulverization. As the amount of grain increases, grain loss increases, and at the same time, since the average value is calculated from all detected moisture values, it is not possible to obtain an accurate average moisture value if there are variations in the detected moisture values. This can cause the grain to become over-dried or under-dried.

Means for Solving the Problems The present invention provides a detection roll (13) which receives grains supplied one by one by a grain supply device (13), crushes the supplied grains under pressure, and detects moisture content. 1) and (1) are provided, and when the detected moisture value of the grain detected by the detection rolls (1) and (1) detects the detected moisture value within the range of the set moisture value a predetermined number of times, the moisture of the grain is detected. The structure of the grain moisture measuring method is provided with a control device that controls the stoppage of the moisture values and calculates and controls the average value of the detected moisture values detected a predetermined number of times.

Functions and Effects of the Invention For example, when a moisture measuring device is used in a dryer for drying grains, the grains stored in the dryer are circulated in the dryer while being dried. A portion of the grains flowing down and circulating in the dryer flow into the spiral grooves of the pair of rotating supply rolls, and the grains that have flowed in are fed and transferred one by one to the detection roll (1). ), (1) and are crushed under pressure by the outer peripheral surface of the detection rolls (1) and (1), and the moisture of this crushed grain is detected, but this detected moisture value is within the range of the set moisture value. When a detected moisture value within the set moisture value is detected a predetermined number of times, the control device stops moisture detection of the grain, and the control device calculates and controls the average value of the detected moisture values within the range of this set moisture value. The grains are dried.

According to the present invention, when the detected moisture value detected by the detection rolls (1), (1) detects a detected moisture value within the range of the set moisture value a predetermined number of times, the moisture detection is stopped and the detected moisture value is within the range of the set moisture value. Since the average value of the detected moisture values in Since excess grain is not crushed, grain loss is also reduced.

Embodiment In the example shown in Figure 1, a storage chamber (4) is provided in the upper part of the model (3) of the dryer (2), a drying chamber (5) is provided in the lower part, and the front wall plate of the model (3) The section is equipped with a burner (6), an operating device (7), and a moisture measuring device (8), a grain raising machine (9) is installed at the front of this model (3), and a rear wall plate of this model (3) is installed. The structure is equipped with an exhaust fan.

The moisture measuring device (8) includes front and rear plates (10), (lO), upper and lower plates (11), (11), and left and right side plates (12), (1
2) into a box shape, and the supply device (13
), a part of the supply rolls (14), (14) is configured to protrude, and the protruding supply rolls (14),
(14) is installed in a state that protrudes into the front wall plate, and the box body has detection rolls (1), (1), etc. The grains are transferred to the supply roll (1
4), (10) and the detection roll (1), (
1) It is a configuration in which it is supplied upward.

Support metals (15) and (1B) are provided inside the box body, and supply roll shafts (17) and (19) are pivotally supported by the support metals (15) and (1B) in the upper part of the box body. The supply roll (14) having a helical groove formed on its outer peripheral surface is fixed to one end of the supply roll shaft (17).

A gear (19) is fixed to the other end, and the supply roll shaft (
18) The supply roll (14) is fixed to one end, the gear (20) is fixed to the other end, and the supply roll (14) is fixed to the other end.
), part of (14) is the opening (21) in the front wall plate.
The helical groove of the supply rolls (14), (14) is connected to the inner peripheral side of the re-supply rolls (14), (14). The grains flowing through the machine (3) are in a state where they match each other.
The grains are fed and transferred one by one to the matched spiral grooves of the supply rolls (14), (14).
) is configured to be supplied to the lower part from the - side end.

At the bottom of the supply rolls (14), (14), detection roll shafts (22), (23) are connected to the support metal (15),
(16), the detection roll (1) is fixed to one end of the detection roll shaft (22), and a two-stage gear (24) is fixed to the other end of the detection roll shaft (22). 23) The detection roll (1) is fixed to one end, and the gear (2) is fixed to the other end.
5), and the grains fed one by one to the upper part of this detection roll (1), (1) are fixed to this detection roll (1), (1).
The structure is such that the grain is crushed under pressure at the outer circumferential surface, and the water content of the grain is detected based on the voltage value of 3 during this crushing.

A cleaning roll shaft (
2B) is pivotally supported by the support metals (15) and (1B) k, and a cleaning roll (2B) is attached to one end of the cleaning roll shaft (2B).
27), and the gear (28) is fixed to the other end.
A brush is provided on the outer circumferential surface of the cleaning roll (27), and the tip of this brush is provided in contact with the outer circumferential surface of the detection rolls (1), (1), and is attached to the detection rolls (1), (1). This brush is configured to remove detected crushed grains.

(29) is a motor, this motor (29) is fixed to the support metal (16), a gear (30) is fixed to the shaft end of this motor (28), and this gear (30) and the two-stage gear (24) and the gears (19), (20),
(25) and (28) are configured to mesh with each other, and an inclined plate (31) is provided at the lower part of the cleaning roll (27), and through this inclined plate (31), the reduction port (32) of the front wall plate is connected. The pulverized grains whose moisture has been detected are returned from the 11th wall (3) into the wall (3) and are circulated and returned at the same time as the drying grains.

The motor (29) of the moisture measuring device (8) is rotated by the measurement signal transmitted from the operating device N (7), and the two-stage gear ( 24) and the gears (19), (20), (
25) and (2B) are rotationally driven, and the supply roll (14)
), (14), the detection roll (1), (1)
The cleaning a-rule (27) and the like are rotationally driven.

The operating device (7) is box-shaped, and has a start switch (33), a stop switch (34), a target moisture setting device (35), a hot air temperature setting device (3G), etc. on the surface thereof.
It is configured to have a control device (37) inside, and the control device (37) receives input of the operations of the switches (33), (34) and the setting knobs (35), (36). an input circuit (3B), an A-D converter (39) for A-D converting the detected voltage value detected by the moisture measuring device (8), and an A-D converter (39) that converts the detected voltage value detected by the moisture measuring device (8); Input circuit (38) to input, these input circuits (38), (38
) and a CPU (40) that performs arithmetic and logical operations and comparison operations on various input values input from the CPU (40), and an output circuit (41) that outputs various commands issued by the CPU (40). (37) starts the motor (29) of the moisture measuring device (8), the various motors (42) of the dryer (2), the fuel pump (43) that supplies fuel into the burner (6), etc. , stopping, controlling, etc.

The CPU (40) compares the set moisture value set in the target moisture setting transfer (35) with the detected moisture value detected by the moisture measuring device (8), and selects the same grain moisture value as the set moisture value. When this moisture measuring device (8) detects, the dryer (2)
This CPU (40) automatically controls and stops the moisture measuring device (8), and compares the detected voltage value detected by the moisture measuring device (8) with the set voltage value stored in this CPU (40). When a detection voltage value within the range of this set voltage value is detected a predetermined number of times, this CPU (40) stops moisture detection and at the same time detects the average of the detected voltage values within the range of this detected set voltage value. It is configured to calculate and control the value, replace this average value with a grain moisture value, and display it as the grain average moisture value on the display window of the operating device (7). At the start of this drying, the CPU (40) controls the burner (
6) It is configured to control a fuel pump (43) that supplies fuel into the fuel tank.

By operating the operating device (7), the hot air generated from the burner (6) installed on the front wall plate is sucked and exhausted by the exhaust fan installed on the rear wall plate, thereby opening the drying room (5). The grains, which are ventilated and stored in the model (3) of the dryer (2), are exposed to this hot air while flowing down from the storage chamber (4) into the drying chamber (5) and are dried. From m (9), the storage chamber (4)
The grains are dried by repeating the circulatory reduction inside the machine.
3) The grains flowing down inside the moisture measuring device N (8) are controlled by the motor (29
) rotates, and the two-stage gear (24) and gears (19), (20) mesh with the gear (30) of this motor (29).
), (25), and (2B) are rotationally driven, and the supply roll (1
4) and (14) are rotationally driven, and the grains flowing down in the machine (3) are transported by the spiral grooves of the supply rolls (1), (1) inserted into the machine (3). The grains are fed into the helical groove, and the grains are transferred one by one into this spiral groove.
Grains are fed one by one onto rotationally driven detection rolls (1), (1), and are crushed under pressure between the outer circumferential surfaces of the detection rolls (1), (1), and the voltage value and control during this crushing are controlled. Equipment (3
7) When a detected voltage value within the set voltage value is detected a predetermined number of times, moisture detection is stopped and at the same time the detected voltage value is within the set voltage range. The control device (37) calculates and controls the average value of , and this average voltage value is replaced with the detected grain moisture value and displayed on the display window of the operating device (7). This detection process is repeated and when the moisture value of the grain reaches the set moisture content, the operating device (
The dryer (2) is automatically controlled by the control device (37) of 7).
) will automatically stop.

The crushed grains that have been detected are discharged from the inclined plate (31) into the model (3) through the reduction port (32) of the front wall plate,
The detection roll (
1), (1) The crushed grains adhering to the outer circumferential surface are removed and cleaned by the brush of the cleaning roll (27) which is rotationally driven.

The detected moisture value detected by the detection rolls (1) and (1)' is compared with the set moisture value stored in the control device (37), and a detected moisture value that is within the range of the set moisture value is determined as a predetermined value. Once detected, the average value of the detected moisture values detected a predetermined number of times is calculated and used as the detected grain moisture value, which makes it possible to obtain accurate moisture values and shorten the detection time. Since there is no need to grind extra grains, the loss of grains is also reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention: Fig. 1 is a book diagram, Fig. 2 is a side sectional view, Fig. 3 is a rear view, and Fig. 4 is a partially cutaway front view of the dryer. FIG. 5 is an enlarged front view of a portion of the dryer. In the figure, reference numeral (1) indicates a detection roll, and reference number (13) indicates a supply device.

Claims (1)

[Claims] Detection rolls (1), (1) are provided for receiving grains supplied one by one by the grain supply device (13), crushing the supplied grains under pressure, and detecting moisture content. (1), When the detected moisture value of the grain detected by (1) is within the range of the set moisture value a predetermined number of times, the moisture detection of the grain is controlled to stop, and the detection of the predetermined number of detections is performed. A grain moisture measurement method that includes a control device that calculates and controls the average moisture value.