JPS6252258B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a moisture measuring device for a grain tempering device that measures moisture by taking out a portion of grain in a grain chamber.

BACKGROUND ART Conventionally, a sample chamber for moisture measurement formed by a grain sample cylinder equipped with a grain feeding port and a grain discharging port and a pressure lid provided on the grain discharging port is provided on the side of a paddy tank, Japanese Patent Laid-Open Publication No. 2003-1990 discloses a continuous grain moisture measuring device in which a propeller for grain feeding is mounted on a sample cylinder, and both positive and negative electrodes for measuring the capacitance of grain samples are installed in the sample chamber for moisture measurement.
It has been proposed as Publication No. 51-105892.

However, in this method, the paddy raw material in the paddy tank, which is naturally introduced into the grain sample cylinder from the grain feeding port, is continuously sent to the sample chamber for moisture measurement by the propeller, and the propeller and the compression lid are used to continuously feed the raw material of the paddy in the paddy tank into the sample chamber for moisture measurement. After compressing the paddy raw material of Since it is necessary to squeeze the grain to a certain size using a compression lid, there is a risk that the grains in the sample cylinder will be crushed by the large pressure force, and it is not possible to obtain the moisture value of the grains in their natural state. In addition, the intake of grain into the grain feeding pipe was uncertain.

Problems to be Solved by the Invention It is an object of the present invention to address the above-mentioned problems and to
To provide a moisture measuring device for a grain tempering device that can measure the moisture value of grain as it is flowing naturally and can reliably take out grain from a grain chamber without forcibly compressing the grain to crush it. It's about doing.

Means for Solving the Problems The moisture measuring device for a grain tempering device of the present invention is applicable to a grain tempering device in which a grain circulation process is provided in the tempering unit body which has a built-in downstream type tempering chamber in the lower part of the grain chamber. , a measurement hopper is provided on the side wall of the thermal refining unit body;
A moisture measuring device with an inner cylinder set up inside an outer cylinder is hung inside the measuring hopper at a distance from the measuring hopper, and one side terminal of the moisture detecting part is connected to the inner circumferential wall of the outer cylinder. At the same time, the other terminal of the moisture detection section is attached to the outer peripheral wall surface of the inner cylinder, and a grain feeding opening is provided in the upper part of the moisture meter, and a grain feeding opening is provided in the lower part of the moisture meter for closing when measuring moisture. An on-off valve for grain discharging is provided, and a grain feeding gutter in which a spiral blade is rotatably suspended horizontally is provided above the measuring hopper, and a part of the grain feeding gutter provided with the opening is connected to the tempering section machine body. It is inserted into the side wall of the grain chamber, and an overflow gap is formed at the bottom of the grain outlet provided in the grain feeding trough to connect the grain feeding opening of the moisture measuring device, and a discharge path at the bottom of the measuring hopper is connected. is connected to the grain circulation process.

Function The grain circulation process installed in the tempering unit body circulates the grain using the grain room as one process, and the grain is tempered by the flow-down type tempering chamber at the bottom of the grain room built into the tempering unit body. The grain in the grain chamber flows into the grain chamber through an opening provided in a part of the grain feed gutter fitted into the side wall of the grain chamber of the main body, and the grain is transported by a spiral blade that is horizontally suspended and rotatable inside the grain feed gutter. At the same time, the grain flows out from the grain outlet provided in the grain feeding trough, and a grain outlet is placed in the grain feeding port above the moisture meter suspended inside the measurement hopper provided on the side wall of the tempering unit body. A fixed amount of grain is stored in a moisture measuring device with an inner cylinder set up inside an outer cylinder, and one side terminal of the moisture detector attached to the inner peripheral wall of the outer cylinder and the inner cylinder The moisture value of the grain in the moisture meter is detected by the other terminal of the moisture detection unit attached to the outer peripheral wall of the moisture meter.

In addition, excess grain overflows into the measurement hopper from the overflow gap at the top of the grain feeding opening of the moisture meter, and when the moisture measurement of the grain in the moisture meter is completed, the drain provided at the bottom of the moisture meter is opened. The grain on-off valve is opened to discharge the grain in the moisture meter into the measuring hopper, and the grain is returned to the grain circulation process through the discharge path at the bottom of the measuring hopper.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In Fig. 1, reference numeral 1 is a refining unit body, and the refining unit body 1 has a built-in downstream type refining chamber 2 with a wet air chamber 2a and an exhaust air chamber provided on both sides. A grain chamber 3 is mounted on the upper part of the downstream type tempering chamber 2 of No. 1, and an elevator 4 is provided on one side of the tempering section body 1. A grain circulation path 5 is provided by the elevator 4 to constitute a circulating grain tempering device.

A measurement hopper 8 is provided on the side wall of the tempering unit body 1, a moisture measuring device 7 is housed inside the measurement hopper 8, and a horizontal grain feeding gutter 6 is provided above. A lower discharge passage 17 provided at the lower part of the measuring hopper 8 is connected to the grain circulation stage 5 below.

Reference numeral 24 designates an operation box provided on the side wall of the thermal refining unit body 1, and 25 represents a humid air generator provided on the side of the thermal refining unit body 1.

Next, as shown in FIGS. 2 and 3, the moisture measuring device 7 installed inside the measuring hopper 8
An inner cylinder 15 is fitted into the cylindrical outer cylinder 13 through an appropriate gap 16 and is erected integrally, and a grain feeding opening 9 is provided at the upper part of the outer cylinder 13 of the moisture meter 7. At the same time, a grain threshing on-off valve 10 is provided at the open lower part of the outer cylinder 13 of the moisture meter 7, and one side terminal 12 of the moisture detector 11 is attached to the inner peripheral wall surface of the outer cylinder 13. At the same time, the other side terminal 14 of the moisture detection section 11 is attached to the outer peripheral wall surface of the inner cylinder 15.

An opening/closing device 10a such as a rotary solenoid is provided on the side of the outer cylinder 13 of the moisture measuring device 7, and a grain threshing on/off valve 10 is connected to the opening/closing device 10a via an on/off valve moving mechanism. The grain opening/closing valve 10 is rotated laterally by the operation of the opening/closing device 10a, and is configured to open and close the lower part of the outer cylinder 13 of the moisture measuring device 7.

In addition, a measurement hopper 8 consisting of a funnel-shaped cylinder
A moisture measuring device 7 is fitted and suspended inside the grain flow path 18.

Grain feeding gutter 6 provided above the measurement hopper 8
has a gutter tube, a plurality of openings 19 are provided in the upper part near one end of the gutter tube, a grain outlet 20 is provided in the lower part near the other end of the gutter tube, and a spiral groove is formed inside the gutter tube. The blades 21 are rotatably mounted horizontally, and the grain feeding electric motor 2 for rotating the spiral blades 21 is installed at the other end of the gutter tube.
2 is provided, and the spiral blade 21 is rotated by the operation of the grain feeding electric motor 22, and the grain in the grain chamber 3 taken in from the opening 19 is conveyed by the rotation of the spiral blade 21. It is configured so that it can be discharged more easily.

Further, a part of the grain feeding gutter 6 having an opening 19 in the gutter tube is fitted and attached to the side wall of the grain chamber 3 of the tempering unit body 1, and a measuring hopper 8 is installed in the lower part of the grain feeding gutter 6. is arranged, and a grain outlet 20 provided in the grain feeder 6
An overflow gap 23 is opened in the lower part of the grain feeding port 9 of the moisture measuring device 7 to communicate with the grain feeding opening 9 of the moisture measuring device 7.

In the operation box 24 provided on the side wall of the tempering unit body 1, there are a control electric circuit 50, a moisture value setting device (not shown) for the moisture measuring device 7, and a drive circuit for the grain tempering device, respectively. The control electric circuit 50 is comprised of a processing section circuit 51 and a control section circuit 52.

FIG. 4 shows an electric circuit diagram of the processing section circuit 51,
Two non-stable multivibrators 53 and 54 are provided, and the output side of one non-stable multivibrator 53 is connected to the base of a transistor 55, the collector of the transistor 55 is branched, and one of the non-stable multivibrators 53 is connected to the base of a transistor 55. The other end is connected to a power supply, and the other end is connected to an astable multivibrator 54 via a diode 57, and the emitter of a transistor 55 is grounded.

Further, the output side of the unstable multivibrator 54 is connected to the base of the transistor 56, and the collector of the transistor 56 is connected to the electromagnetic coil R2.
The emitter of the transistor 56 is grounded.

As shown in the timing chart of FIG. 6, the unstable multivibrator 53 has a period T of the trigger pulse (T1=1) (T2=0), and the unstable multivibrator 54 has a trigger pulse (T3=0) ( T4=1).

FIG. 5 shows an electrical circuit diagram of the control section circuit 52,
Two power terminals R and S are provided respectively, a normally closed contact r is connected to the bus bar of the power terminal S, and a contact r1 of the electromagnetic coil R1 is connected to the grain feeding motor 22 between the bus bars of the power terminals R and S. are connected in series, and the moisture detection unit 11 is connected to the contact point r1 and the electromagnetic coil R2.
Both ends are connected to the contact r2 connected in series, and both ends are connected to the switch device 10a to which the contact r1 is connected in series.

Next, the operation of this embodiment will be explained.

An elevator 4 installed on the side of the tempering unit body 1 fries the raw material grain (brown rice), and then lifts the raw material grain (brown rice).
The grain circulation process 5 in the upper part transfers the raw material grain to the refining section machine 1.
The conditions for supplying grain to the grain chamber 3 above the flow-down type tempering chamber 2 in the flow-down type tempering chamber 2 and tempering the raw material grain in the flow-down type tempering chamber 2 are as follows. The desired moisture content after that is set to 14%, and the timing chart set in the moisture meter 7 is set at an arbitrary time interval T to be 10 minutes. The trigger pulse T3, which is the time for grain filling, is set to 3 minutes, and the opening/closing device 10a is
A case will be described in which the trigger pulse T2, which is the time to open the grain threshing valve 10, is determined to be 4 minutes.

First, set the moisture value setting device of the moisture measuring device 7 in the operation box 24 provided on the side wall of the thermal refining unit body 1 to the desired moisture content of 14%, and then press the operation box 24.
The timing chart of various conditions sets the period T of the unstable multivibrators 53 and 54 of the processing unit circuit 51 of the control electric circuit 50 to 10 minutes, the trigger pulse T2 to 4 minutes, and the trigger pulse T3 to 3 minutes, respectively. .

Then, the driving circuits of the wet air generator 25 and the grain tempering device are activated, and the operation box 2 is activated.
When the power of the control electric circuit 50 of No. 4 is turned on, the raw grain in the grain chamber 3 flows into the downstream tempering chamber 2.
Downstream tempering chamber 2 generated by wet air generator 25
Humid air with a predetermined humidity passing through the grain in the lateral direction tempers the raw material grain, and then the raw material grain undergoes the tempering action several times through the grain circulation process 5 and the elevator 4, until the raw material grain has a desired moisture content of 14%. Refine.

Moreover, during that time, the raw grain in the grain chamber 3 is carried through the grain feeding trough 6 to the moisture measuring device 7 in the measuring hopper 8 provided on the side wall of the tempering unit body 1, and the moisture content is measured by the moisture measuring device 7. The moisture measurement process from grain removal to grain removal is repeated at 10-minute intervals.

That is, the processing section circuit 5 of the control electric circuit 50
Trigger pulse No. 1 of the non-stable multivibrator 53 flows into the base of the transistor 55 and excites the electromagnetic coil R1, and the contact r1 of the electromagnetic coil R1 of the control section circuit 52 of the control electric circuit 50 closes, causing the transmission to start. The grain electric motor 22 and the opening/closing device 10a are operated, and the grain feeding electric motor 22 rotates the spiral blade 21 of the grain feeding gutter 6, and the opening/closing device 10a rotates the grain threshing on/off valve 10, and the measuring hopper is rotated. 8
The grain discharging on-off valve 10 closes the open bottom of the outer cylinder 13 of the moisture measuring device 7 installed inside, and the raw grain in the grain chamber 3 flows into the gutter cylinder through the opening 19 of the grain feeding gutter 6. Due to the rotation of the spiral blades 21, the grains flow out from the grain outlet 20 of the grain feeding gutter 6 through the inside of the gutter cylinder, and the grains flow out from the grain outlet 20 of the grain feeding gutter 6.
The raw grain flowing out from the outer cylinder 1 of the moisture measuring device 7
A certain amount of grain is stored in the gap 16 inside the moisture measuring device 7 from the grain feeding opening 9 provided at the top of the grain feeding device 3.

At this time, excess raw material grains flowing into the gap 16 in the moisture measuring device 7 are removed from the overflow gap 2 at the upper part of the grain feeding port 9.
3 into the measuring hopper 8, the overflowing raw material grain flows down a lower discharge passage 17 provided at the lower part of the measuring hopper 8, and is returned to the grain circulation process 5 below.

Furthermore, when three minutes have elapsed since the grain feeding motor 22 started operating, the processing unit circuit 51 of the control electric circuit 50
The trigger pulse No. 2 of the unstable multivibrator 54 is reversed, the contact r2 of the electromagnetic coil R2 of the control section circuit 52 of the control electric circuit 50 is closed, and the moisture detection section 11 of the moisture measuring device 7 is activated. The moisture value of the raw grain in the measuring device 7 is measured.

In addition, the trigger pulse of the unstable multivibrator 53 of the processing section circuit 51 of the control electric circuit 50
When No. 1's T1=1 rearedges to T2=0,
When the grain feeding electric motor 22 stops, the opening/closing device 1
0a is activated, the opening/closing device 10a rotates the grain threshing opening/closing valve 10, and the open bottom of the outer cylinder 13 of the moisture measuring device 7 provided in the measuring hopper 8 is opened.
The raw material grain whose gap 16 in the moisture measuring device 7 has been measured is discharged into the measuring hopper 8.

Then, the processing section circuit 51 of the control electric circuit 50
When the trigger pulse No. 1 of the unstable multivibrator 53 completes the period T, the contact r1 of the electromagnetic coil R1 is reset, the grain feeding electric motor 22 and the opening/closing device 10a are operated again, and the next moisture measurement process begins. .

In this way, the moisture detecting section 1 of the moisture measuring device 7
As soon as the moisture value of the raw grain measured in step 1 matches the set moisture value of 14%, which is the desired moisture content,
The normally closed contact r of the control unit circuit 52 of the control electric circuit 50 opens to temporarily stop the moisture measurement process, and the signal is sent to another device to temper the grain chamber 3 of the tempering unit body 1. Process raw material grains appropriately.

The period T of the timing chart is appropriately determined according to the amount of raw material grain to be input into the grain chamber 3 of the tempering unit body 1, and the time required for one cycle of circulating the input raw material grain in the grain tempering device is 30 minutes. If it takes several minutes, if the normally closed contact r of the control circuit 52 of the control electric circuit 50 is opened three times in succession by another device, the tempered raw material grain can be heated at each part. It is also possible to confirm that the refining action has been completed to achieve the desired moisture content, which is extremely convenient.

Further, the moisture measuring device of the grain tempering device can also be used when drying and tempering high moisture raw material grain to a desired low moisture content.

Effects of the Invention As described above, according to the moisture measuring device for grain conditioning equipment of the present invention, a grain circulation process is provided in the conditioning unit body which has a built-in downstream type conditioning chamber in the lower part of the grain room. A measuring hopper is installed on the side wall of the mass body, and a moisture measuring device with an inner cylinder set up inside an outer cylinder is suspended inside the measuring hopper, and one side of the moisture detection part is installed on the inner circumferential wall of the outer cylinder. In addition to attaching the terminal, the other terminal of the moisture detection unit is attached to the outer peripheral wall of the inner cylinder, a grain feeding opening is provided at the top of the moisture meter, and a grain discharging on/off valve is installed at the bottom of the moisture meter. A grain feeding gutter in which a spiral blade is rotatably suspended horizontally is provided above the measurement hopper, and a part of the grain feeding gutter with an opening is inserted into the side wall of the grain chamber of the tempering section body. Due to this,
It is possible to reliably take out the grain in the grain chamber intermittently at any time by rotating the spiral blade, and by opening the grain removal on-off valve, the grain in the moisture measuring device that has been approved for moisture measurement can be removed. Discharge into the measurement hopper at once,
Grain is fed into the moisture meter in a free-falling manner, and grain that overflows from the moisture meter is discharged from the discharge channel, so the moisture content can be measured in its natural state without compressing and crushing the grain. It is possible to measure accurately, improve the quality of grain by precisely tempering it to the desired moisture content, and always smoothly and quickly produce high-quality grain that is precisely tempered to the desired moisture content. Can be mass produced.

In addition, an overflow gap was opened at the bottom of the grain outlet provided in the grain feeding trough to connect the grain feeding port of the moisture measuring device, and a discharge path at the bottom of the measuring hopper was connected to the grain circulation process, so that excessive The grains can overflow into the measuring hopper through the overflow gap and be returned to the grain circulation process through the discharge passage, and the grains in the grain room are reliably taken out by the spiral blades fitted therein. The grain supply to the moisture meter is never cut off.

[Brief explanation of the drawing]

FIG. 1 is a cutaway side view of main parts of a grain tempering apparatus equipped with a moisture measuring device according to an embodiment of the present invention, and FIG.
Enlarged cutaway side view of essential parts of the same moisture measuring device as above, No. 3
The figure is a perspective view of the moisture meter, FIG. 4 is an electric circuit diagram of the processing section circuit of the control electric circuit, FIG. 5 is an electric circuit diagram of the control section circuit of the control electric circuit, and FIG. 6 is an electric circuit diagram of the control section circuit of the control electric circuit. , is a timing chart. 1...Thermal refining unit body, 2...Downflow type refining chamber, 2a
...Wet air room, 3...Grain room, 4...Elevator, 5...
... Grain circulation process, 6 ... Grain feeding trough, 7 ... Moisture measuring device, 8 ... Measuring hopper, 9 ... Grain feeding port, 1
0... Opening/closing valve for grain threshing, 10a... Opening/closing device, 11
... Moisture detection section, 12 ... One side terminal, 13 ... Outer cylinder, 14 ... Other side terminal, 15 ... Inner cylinder, 16 ...
Gap, 17...lower discharge path, 18...grain flow path,
19...opening, 20...grain outlet, 21...
Spiral blade, 22... Grain feeding electric motor, 23... Overflow gap, 24... Operation box, 25... Moist air generator, 50... Control electric circuit, 51... Processing unit circuit, 52... ...control unit circuit, 53, 54...unstable multivibrator, 55, 56...transistor, 57...diode, R1, R2...
...Electromagnetic coil, r...Normally closed contact, r1, r2...
contact.

Claims (1)

[Claims] 1. In a grain tempering device in which a grain circulation stroke is provided in a tempering unit body that has a built-in downstream type tempering chamber in the lower part of the grain room, a measurement hopper is provided on a side wall of the tempering unit body, and the measurement hopper A moisture measuring device with an inner cylinder set up inside an outer cylinder is suspended at a distance from the measuring hopper, and one side terminal of the moisture detection part is attached to the inner circumferential wall of the outer cylinder, attaching the other side terminal of the moisture detection section to the outer peripheral wall surface of the inner cylinder;
A grain feeding opening is provided in the upper part of the moisture measuring device, and a grain discharging opening/closing valve that is closed when measuring moisture is provided in the lower part of the moisture measuring device, and a spiral blade is rotatably provided inside the measuring hopper. A horizontally suspended grain feeding gutter is provided, and a part of the grain feeding gutter provided with an opening is inserted into the side wall of the grain chamber of the tempering unit body, and a part of the grain feeding gutter provided with the opening is inserted into the lower part of the grain outlet provided in the grain feeding gutter. A moisture measuring device for a grain tempering device, characterized in that an overflow gap is opened to connect the grain feeding port of the moisture measuring device, and a discharge path at the bottom of the measuring hopper is connected to the grain circulation process.