JP2006038595A - Grain moisture measuring device of grain drier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain moisture measuring device of a grain drier capable of performing proper moisture measurement in a compression condition corresponding to the grain size without requiring a troublesome switching operation on the grain size. <P>SOLUTION: This grain moisture measuring device 1 comprises a grain supply part 12 for a single grain, a compression measuring part 13 for measuring the moisture value of the compressed grain, a data processing part 21 or the like. The compression measuring part has a constitution wherein at least one roll electrode 13 is formed to have large and small circumferential surface diameters, so that large and small compression intervals can be selected according to the rotation angle position. The grain supply part 12 is equipped mutually adjacently with large and small selection recessed parts 31a having the diameter size capable of selecting and holding the grain according to the size of the received grain, and is also equipped with a successive transfer means for transferring successively the large or small held grain to a sending-out position by a moving operation of the large and small selection recessed parts 31a. The device is constituted so that the transfer operation of the successive transfer means and the compression operation of the compression rolls 13 are controlled sequentially in accordance with a timing of each large or small size. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides a kernel of a grain dryer that is provided in a grain dryer that heat-drys harvested grains such as straw and soybeans to a predetermined moisture value and measures the moisture content of each grain in the drying process. The present invention relates to a moisture measuring device.

  In order to measure the drying degree of the circulating grain of a grain dryer, for example, a grain moisture measuring device shown in Patent Document 1 is conventionally known. This grain moisture measuring device is provided on a circulation path such as a circulation raising and lowering part of a grain dryer, and receives a grain supply unit for transferring a grain one by one using a part of the circulating grain as a measurement sample, A pair of compression roll electrodes with two compression rolls arranged in parallel to compress the cereal grains, and formed so that the compression gap changes by forming different roll radii depending on the angular position, and by selecting the input timing, In this example, as shown in Patent Document 2 (FIG. 13), rolls having large and small radii are arranged adjacent to each other on the left and right, and the distance between the compression gaps can be selected by selecting the left and right rolls.

  These can change the compression conditions by selecting the input timing or by selecting the left and right rolls, so due to the moisture value of the grain and uneven growth, it is not retained between the electrodes and stops at the inlet, The measurement conditions can be appropriately switched to cope with a situation where it is bounced and dissipated and it becomes difficult to measure moisture quickly and accurately.

However, the change of the measurement condition is unavoidable for the troublesome operation of switching the timing setting according to the size of the grain to be handled or switching the grain supply port to the compression roll. Even in the case where there is a difference in particle size due to growth conditions, etc., since the processing is uniformly performed under the switched measurement conditions, there is a problem in measurement accuracy.
JP-A-60-95351 JP 2003-107027 A

  The problem to be solved is a grain moisture measuring device of a grain dryer that enables appropriate moisture measurement according to the compression condition according to the grain size without requiring troublesome switching operation about the grain size of the grain. It is to provide.

The invention according to claim 1 includes a grain supply unit that sends out grains one by one, and two opposed compression rolls that compress the grains received from the grain supply unit, as a pair of electrodes. The compression measurement unit that measures the moisture value and the data processing unit that calculates the grain moisture value based on the conversion process and the average process of the measurement value. The compression measurement unit has at least one roll electrode of a large or small size. In the grain moisture measuring device of the grain dryer which is formed on the peripheral surface radius and is configured so that a large and small compression gap can be selected according to the rotation angle position thereof, the grain supply unit is configured to adjust the grain size of the received grain. In accordance with this, the large and small sorting recesses having diameters that can be sorted and held are provided adjacent to each other, and further equipped with sequential transfer means for sequentially transferring the large and small held grains to the delivery position by the movement operation of these large and small sorting recesses. Transfer operation of the transfer means and pressure Characterized by interlock control combined compression operation of the roll to the timing of the respective large and small.
Large and small grains are sorted and held in accordance with the particle size by the sorting recess of the grain supply unit, which are sequentially transferred to the delivery position by the transfer means, and are supplied corresponding to the large and small compression gaps of the interlocking operating compression roll. Thus, the moisture value of the grain is measured by the compression treatment corresponding to the particle size.

  According to a second aspect of the present invention, in the configuration of the first aspect, the grain supply section is provided with a substantially horizontally arranged groove that rotates with a circumferential groove having a large and small cross-sectional shape adjacent to each other in a spiral shape. It is characterized by comprising a roll and a flat side receiving plate that guides the transfer while selecting and holding the grains by receiving the grains in the circumferential groove at a predetermined distance. The grooved roll has a sorting recess formed by a circumferential groove and functions as a sequential transfer means that operates in cooperation with the side receiving plate. That is, the small-diameter grain passes through the large circumferential groove and drops, and the large-diameter grain passes so as to jump over the small circumferential groove.

The invention according to claim 3 is the configuration according to claim 1, wherein the grain supply unit inclines a rotating plate that is adjacent to each other on the same circumference with large and small seats that can hold the grain so as to be discharged. It is characterized by comprising.
The rotating plate is provided with a sorting recess by tilting large and small receiving seats, and functions as a transfer means sequentially by its rotating operation, and grains of suitable particle sizes are sorted and held by the large and small receiving seats and sequentially transferred. Is done.

The invention which concerns on Claim 4 uses the grain supply part which transfers a grain one by one, and two opposing compression rolls which receive a grain from this grain supply part as a pair of electrodes, and the moisture value of the compressed grain In the grain moisture measuring device of the grain dryer, comprising the compression measuring unit for measuring the value and the data processing unit for calculating the grain moisture value based on the conversion process and the average process of the measured value, the compression measuring unit is A surface shape having a different compression action depth is formed on at least one roll electrode, and the action depth can be selected according to the rotation angle position.
The compression measurement unit compresses the grain and measures its moisture value, and the surface shape is specified corresponding to the angular position of the roll electrode during the compression measurement, and the corresponding compression action depth, i.e., the grain, is measured. The moisture value inside the grain according to the degree of flatness is obtained.

The invention according to claim 5 is a moisture supply value of the compressed grain using a grain supply unit that sequentially transfers the grain one by one and two opposing compression rolls that receive the grain from the grain supply unit as a pair of electrodes. In the grain moisture measuring device of the grain dryer, comprising the compression measuring unit for measuring the value and the data processing unit for calculating the grain moisture value based on the conversion process and the average process of the measured value, the compression measuring unit is The cross-sectional shape of at least one of the roll electrodes is formed in a polygonal shape, each side thereof is arranged at two or more different center distances, and the center distance can be selected by the rotation angle position. .
The roll electrode of the compression measurement unit measures the moisture value at the depth position corresponding to the compression condition by two or more different center distances.

  In the grain moisture measuring device according to claim 1, a large and small grain is sorted and held in accordance with the particle size by the sorting recess of the grain supply unit, which is sequentially transferred to a delivery position by a transfer means, and is operated in conjunction with the compression roll. The water content of the grain is measured by the compression process corresponding to the particle size. Therefore, the above-mentioned grain moisture measuring device can perform measurement processing under compression conditions according to the grain size of the grain, so that it does not require a switching operation depending on the size of the handled grain, and moisture measurement accuracy for grains having a wide range of grain sizes. Can be secured.

  The grooved roll according to a second aspect of the present invention includes a sorting concave portion formed by a circumferential groove and functions as a sequential transfer unit that operates in cooperation with the side receiving plate. That is, the small-diameter grain passes through the large circumferential groove and drops, and the large-diameter grain passes so as to jump over the small circumferential groove. While being sorted and held in the groove, it is transferred along the side receiving plate, and is sequentially supplied from a predetermined position of the grooved roll to the compression measuring unit corresponding to the gap, thereby achieving the intended purpose.

  The rotary plate of the grain moisture measuring device according to claim 3 is provided with a sorting concave portion by tilting large and small receiving seats, and functions as a transfer means sequentially by its rotating operation, and a particle size adapted to each by the large and small receiving seats. The grains are sorted and held, sequentially transferred, and sequentially supplied from a predetermined position of the rotating plate corresponding to the large and small gaps of the compression measuring unit, thereby achieving the intended purpose.

  The compression measurement unit of claim 4 compresses the grain and measures its moisture value, and the surface shape is specified corresponding to the angular position of the roll electrode at the time of compression measurement, and according to the corresponding compression action depth. Since the moisture value inside the grain is obtained, the moisture value can be obtained at different depth positions inside the grain by averaging the moisture value for each compression action depth. Therefore, the above grain moisture measuring device enables highly accurate drying control based on the internal moisture gradient depending on the depth position from the grain surface.

  Since the moisture value of the depth position corresponding to the compression condition by two or more different center distances is measured by the roll electrode of the compression measurement unit according to claim 5, the inside of the grain is averaged by the compression condition Moisture values can be obtained for different depth positions. Therefore, the above-mentioned grain moisture measuring device enables highly accurate drying control based on the internal moisture gradient depending on the depth from the grain surface.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The grain moisture measuring device 1 of the present invention is provided on a circulation path such as a circulation raising / lowering unit 3 by a bucket elevator of a circulation type grain dryer 2 shown by a longitudinal side view of FIG. It constitutes a part of a system that controls the operation of the external radiation heating unit 5, the suction unit 6, and the like.
As shown in the perspective view of the basic configuration of FIG. 2 and the enlarged cross-sectional view of FIG. 3, the grain moisture measuring device 1 is a grain input unit 11 that receives a part of the circulating grain as a measurement sample G, the grain It consists of a pair of compression roll electrodes 13a, 13b, etc. that receive and compress the grain G introduced one by one, the grain supply unit 12 that sends the grain G one by one from the input unit 11. That is, the grain moisture measuring device 1 is attached to the case of the circulating elevator unit in the bucket elevator form, and each part of the measuring device 1 is activated at a predetermined measurement time interval, but a part of the grain swollen by the bucket elevator After receiving the minute, the measurement apparatus 1 is reached.

  As shown in FIG. 4, the control system of the grain moisture measuring device 1 has a control motor 21 that controls each device by a microcomputer and a drive motor 13 m for a pair of compression roll electrodes 13 a and 13 b and an applied voltage. In addition to controlling the circuit 22 and inputting the measured electrical resistance via the conversion circuit 23, the vicinity temperature detection means 24 provided in the vicinity of the compression roll electrodes 13a and 13b, the grain temperature provided in the grain input unit 11 and the like The detection unit 25 and the electrode rotation detection unit 26 that detects the angular positions of the compression roll electrodes 13a and 13b are input, and the data is output to the display unit 27 via the output circuit 27c.

  The compression roll electrodes 13a and 13b constitute a compression measurement unit, and as shown in the enlarged side view of FIG. 5, at least one roll electrode 13a is formed with large and small peripheral radii r1 and r2 for each angle range. The electrode gap M for taking in the grain G supplied grain by grain is configured to be able to change alternately in size depending on the rotational angle position. In FIG. 5, a radius r2 between 180 degrees and 360 degrees is formed larger than a radius r1 between 0 degrees and 180 degrees. The compression roll electrode 13a is provided with an angle sensor for detecting an angular position to form an electrode rotation detection means 26. If the electrode rotation detection means 26 is a contact type, such as a reed switch or a photo switch, the shaft rotation part is detected by a limit switch, and this compression measurement part makes a large or small compression depending on the rotation angle position of the roll electrode. The gap can be configured to be selectable.

  In addition, as shown in the perspective view of FIG. 6, for example, the grain supply unit is a substantially horizontally disposed groove that rotates in a spiral manner with circumferential grooves 31 a and 31 b having large and small cross-sectional shapes adjacent to each other. It comprises an attaching roll 31 and a flat side receiving plate 32 that guides the transfer while selecting and holding the grains by receiving the grains in the circumferential groove at a predetermined distance.

  The grooved roll 31 is provided with sorting recesses by the circumferential grooves 31a and 31b, and the sequential transfer means by the joint operation with the side receiving plate 32 is configured, so that the small-diameter grains can pass through the large circumferential groove. Passing through and dropping off, the large-diameter grain passes over the smaller circumferential groove, so that the grain is sorted and held in the circumferential groove according to the particle size, along the side receiving plate 32. It is transferred and sequentially supplied from a predetermined position of the grooved roll 31 to the compression measuring unit corresponding to the gap. If small particles are transferred and measured by the large electrode gaps 13a and 13b, the data can be excluded by setting the grain type.

  The circumferential grooves 31a and 31b are formed in spirals on the circumferential surface of the roll 31 with their phases shifted, and for example, the groove 31a side is formed deeper and wider than the groove 31b. The grain contacts with the grooved roll 31 or is received by the side receiving plate 32 that is arranged close to the grooved roll 31, and the grain fitted in the groove is transferred in the axial direction by the rotation of the grooved roll 31. It is a configuration. Here, the grooved roll 31 is formed with two large and small spiral grooves that are out of phase, and the instantaneous grain released from the end of the side receiving plate 32 falls downward, after being removed from the large groove 31a, The grain in the small groove 31b is detached from the end of the side receiving plate 32 and falls downward, and the grain is dropped and discharged in the order of the groove 31a, the groove 31b, the groove 31a,. Therefore, by controlling the roll electrode 13 having a different radius in the range of 180 degrees as described above to cope with the fall of these grains, for example, the large grain corresponds to the radius r1 portion at the 90 degree angle in FIG. Then, the small particles are transmitted and configured so as to drop corresponding to the radius r2 portion at the same angle of 270 degrees.

  Corresponding to the particle size at the timing of the large and small compression gaps in FIGS. 7A and 7B by being supplied by the grain supply unit 12 corresponding to the large and small compression gaps of the compression rolls 13a and 13b operating in conjunction with each other. The moisture content of the grain is measured under compression conditions. Therefore, since the said grain moisture measuring device 1 can perform the measurement process by the compression conditions according to the grain size of a grain, it does not require the switching operation by the size of the handling grain, and it measures moisture about the grain of a wide grain size. Accuracy can be ensured.

  The grain compression by the compression rolls 13a and 13b may be accompanied by so-called grain crushing, or may flatten the grain without reaching the crushing. When the grains require crushing (for example, straw, wheat, etc.), the transmission gap is adjusted so that crushing is possible, and the transmission rolls 13a and 13b are configured to generate a constant peripheral speed difference. On the other hand, in the case of a grain that is flat and sufficient (high moisture wheat, soybean, etc.), it is adjusted to an appropriate compression gap and set to the same peripheral speed.

  As described above, the grain supply unit 12 includes the large and small sorting recesses 21a and 21b having a diameter that can be sorted and held in accordance with the grain size of the received grain G, and the large and small sorting recesses 21a. , 21b is provided with sequential transfer means for sequentially transferring large and small retained grains to the delivery position, and the transfer operation of the sequential transfer means and the compression operation of the compression roll are interlocked and controlled in accordance with the respective large and small timings. By comprising in this way, an appropriate water | moisture content measurement is attained by the compression conditions according to a particle size, without requiring the troublesome switching operation about the particle size of a grain.

  Moreover, the grain supply part of another example shown in the perspective view (a) and the side view (b) of FIG. 8 has the same large and small receiving seats 33a and 33b that can hold the grain G so as to be discharged. The rotating plate 33 provided on the circumference is configured to be inclined. The rotating plate 33 is provided with sorting recesses by slanting large and small seats 33a, 33b, a standing wall 33r, a fall prevention wall 33u, a dropout guide wall 33S, a central drive motor 33m, and an upper delivery part 33e. By assembling the anti-scattering wall 33g, etc., it functions as a transfer means by its rotating operation, and the grains G having the appropriate particle sizes are sorted and held by the large and small receiving seats 33a, 33b and sequentially transferred, It is sequentially sent from the sending unit 33e to the compression measuring unit corresponding to the large and small gaps.

  In the same manner as described above, the grain supply unit in FIG. 9 is an example in which the transfer means is sequentially configured by the rotating plate 34 provided with the selection recesses by the large, medium, and small cutouts 34a, 34b, and 34c on the outer periphery. The grains G1, G2, G3 can be selected accordingly.

  Next, an example of measuring the moisture value gradient in the depth direction of the grain will be described. FIG. 10 shows a structure in which concave / convex circumferential surfaces 41a, 41b and 41c having different surface irregularities are formed on at least one roll electrode 41 of the compression measuring unit, and the irregularities on the surface can be selected depending on the rotation angle position thereof. By doing, a moisture value can be obtained about the corresponding depth position inside a grain according to the surface roughness. As for each uneven | corrugated surrounding surface 41a, 41b, 41c, the unevenness | corrugation depth of a surface differs, respectively, and the thing with the largest depth dimension can measure the moisture information of the surface layer part of a grain, and from the intermediate depth of a grain as it becomes shallow Moisture information can be measured throughout. As a specific electrode configuration, those having different surface unevenness depths are manufactured by a conventional electrode manufacturing method, and the three parts are combined and joined. The concavo-convex shape is typically JIS knurled, and the concavo-convex depth corresponds to the module. The number of divisions is not limited to three divisions, and can be determined as necessary.

  In the moisture measurement, as shown in the flowchart of FIG. 11, after the initial setting (S1 to S4) such as setting the number of particles to be measured and the motor operation at the start of measurement, necessary conversion processing for the measured value is repeated a predetermined number of times ( S5 to S12). The conversion of the moisture value can be obtained by M = β1 · Er + β0 + κT. β1 and β0 are determined by the specifications of the compression roll electrodes 13a and 13b. After measuring a predetermined number of data, the measurement values are averaged (S13) for each measurement site, thereby calculating and displaying variations and moisture distribution (S14 to S16). In the case of two-point measurement of moisture values M1 and M2, the surface is dry if the gradient S = M1-M2, S <α1, the water equilibrium state if α1 <S <α2, and the surface if S> α2. Judgment evaluation can be performed like a wet state.

  As described above, the roll electrode can obtain moisture values at different depth positions inside the grain according to the surface roughness of the concave and convex peripheral surfaces 41a, 41b, and 41c. Therefore, the above-mentioned grain moisture measuring device enables highly accurate drying control based on the internal moisture gradient depending on the depth from the grain surface.

  As another example of the roll electrode, an internal moisture gradient can be obtained in correspondence with the electrode gap size by forming a different peripheral radius instead of the above-described surface roughness. In this case, for example, when the surface of the grain (beans) due to rainfall before harvesting has a higher water content compared to the inside, or when the surface layer moisture drops during drying, the protrusions penetrate into the grain. In addition, coupled with wide electrode gaps, it is possible to capture moisture information on the grain surface layer more accurately. Even if the peripheral surface radius is composed of three or more stages in addition to two stages, the grains are gripped numerically and evenly in the gaps of the respective stages by enhancing the single grain conveying ability. Therefore, the moisture measurement signal in each setting gap can be measured.

The compression measurement unit compresses the grain and measures its moisture value, and the surface shape is specified corresponding to the angular position of the roll electrode during the compression measurement, and the corresponding compression action depth, i.e., the grain, is measured. The moisture value inside the grain according to the degree of flatness is obtained.
That is, the grain supplied to the compression measuring unit is subjected to a predetermined compression action, and mainly flattenes the surface layer portion, the surface layer portion, the intermediate portion, and so on, thereby increasing the compressive force to increase the moisture content inside. Information can be obtained, and the moisture gradient can be grasped as a whole.

  As another example of the roll electrode, as shown in the operation diagram of FIG. 12, the cross-sectional shape of at least one roll electrode 42b is formed in a polygonal shape, and its sides are arranged at two different center distances. By configuring the center distance to be selectable according to the angular position, an internal moisture gradient can be obtained corresponding to the center distance dimension of each side of the polygon.

  In this case, according to the difference in compression conditions for each side, each signal can be individually processed, and the electrical signal measured at different electrode gaps can be compared statistically to detect the moisture distribution in the grains. In particular, it is easy to apply force in the radial direction of the electrode to the measured grain for large beans and sake rice whose moisture gradient is important for grain processing. An increase in area can also be achieved, resulting in a compact and high measurement accuracy. For measuring large soybeans, as shown in the operation diagram of FIG. 13, by forming the cross-sectional shape of both roll electrodes 42a and 42b into polygons, it is easy to grip in a flat state and has high moisture content. Distribution can be detected. In this case, it is desirable that both of them rotate at a constant speed.

  For example, like the polygonal roll electrode 43 shown in FIG. 14, three-stage compression conditions are set according to the center distances L1, L2, and L3 (L1> L2> L3) of the hexagonal sides 44a, 44b, and 44c. Thus, the moisture value at the corresponding depth position is measured, so that the moisture value can be obtained for different depth positions inside the grain by performing an average process for each compression condition. Therefore, the above-mentioned grain moisture measuring device enables highly accurate drying control based on the internal moisture gradient depending on the depth from the grain surface. In particular, when collecting moisture information on the surface layer of the grain, it is desirable not to perform uneven processing such as knurling that is applied to an ordinary rotating electrode on the opposite side corresponding to L3. It is sufficient to have an uneven surface that penetrates.

  The reason is that the surface protrusion is configured to detect the average moisture by pressing the electrode part into the grain as much as possible, and in the spirit of the present plan, the surface layer is not processed as much as possible. By flattening the grains without breaking, the moisture information of the surface layer can be collected reliably.

  For example, when the surface of the grain (beans) due to rainfall before harvesting is higher in moisture than the inside, or when the surface layer moisture drops during drying, the gap between the electrodes does not penetrate into the grain. Combined with taking a wide range, moisture information on the surface of the grain can be captured more accurately.

  In the case of three-point measurement of moisture values M1, M2, and M3, if k1 + k2 = 1, the gradient is calculated by S = k1 (M1-M2) + k2 (M2-M3). If S <α1, the surface dry state can be determined, if α1 <S <α2, the water equilibrium state can be determined, and if S> α2, the surface wet state can be evaluated.

  Conventional grain and bean single grain moisture meters were used to determine the average moisture value in one grain, but the moisture distribution in the grain could not be detected and the surface was wet or dry. However, as a result, it was not possible to properly control the threshing process and the drying adjustment process of the grain, but the present invention can solve such a problem.

Next, data processing for moisture value calculation will be described.
In a dryer having a moisture detection device and performing display and automatic drying stop by the moisture setting value and the detected moisture, for example, in the drying control system shown in the input / output configuration diagram of FIG. When the moisture content is measured by the moisture meter 1 and the average moisture value is calculated by the control unit 51, the reference moisture is calculated by cutting the grains below the preset moisture value, and the average moisture is calculated based on the reference moisture. The upper and lower limit moisture values for obtaining the effective range to be used are set to calculate the average moisture.

  That is, a predetermined number of grains is stored in a corresponding moisture block for each grain, and thereafter, in a method for obtaining an average moisture, a block having a predetermined moisture (11.2%) or less is cut, and upper and lower limit processing is performed from the remaining data. When calculating the average moisture value, if the upper and lower limit processing standard is the median value, search the upper block for the number of grains that is half of the remaining number of grains plus one grain (100-cut number) / 2 + 1). The upper and lower limits are processed based on the block, and the average moisture value is obtained.

  As shown in the flowchart of FIG. 16, the specific process is a series of processes (S3) by the low moisture cut process after the initial process (S1) of the drying operation until the drying or stop (S4). It is performed by repeating a predetermined number of times (S2). In the case of the median value, the moisture value of the moisture block of (100−number of cuts) / 2 + 1) from the upper block is used as the reference for the upper and lower limit processing. In the case of a simple average moisture value, the moisture value obtained from the moisture value from the upper block to the low moisture block and the number of grains is used as the reference for the upper and lower limit processing.

  If the reference moisture is obtained by the above processing, the moisture content other than the upper and lower effective ranges (± M in the detection example) scheduled in advance is cut, and the average moisture value is calculated with the remaining particles. The reference moisture for performing the lower limit treatment can be a value close to the center of the effective grain (sized rice) for calculating the average moisture, and the error between the actual moisture value and the calculated value can be reduced.

  Therefore, as shown in the example of the entire data distribution diagram of FIG. 17, even if the suspicious data that does not fit the moisture sample is deleted, the reference value (median) is properly captured and the sizing The moisture calculation accuracy can be improved, the adaptability of grain properties can be improved, and the moisture stopping accuracy can be improved. For example, when the proportion of sterile particles is very large due to weather conditions, etc., if data is taken in as a moisture sample, it will be calculated on the low moisture side, resulting in undried, and the upper and lower limit treatment criteria are simple average values In some cases, the calculation accuracy may be lowered due to the distribution shape (double mountain, side deviation, wide base), but such a situation can be avoided.

  Further, when the control unit 61 controls the operation of the far-infrared dryer based on the measurement of the moisture sensor 1 by the input / output control configuration shown in the system diagram of FIG. 18, as shown in the flowchart of FIG. Considering the degree of progress of drying at the time, when correcting the measured moisture value during drying, the moisture correction amount is changed and set in accordance with the setting value of the tension amount at the start of drying (S). .

It is a vertical side view of the grain dryer used as the application object of the grain moisture measuring device of the present invention. It is a perspective view of the basic composition of a grain moisture measuring device. It is an expanded section of a grain moisture measuring device. It is an input-output block diagram of the control system of a grain moisture measuring device. It is an enlarged side view of a compression roll electrode. It is a perspective view of a grain supply part. The compression gap timings (a) and (b) of the compression roll. It is a grain supply part of another example. It is another grain supply unit. It is a structural example of a compression measurement part. It is a flowchart of a moisture measurement. It is an operation | movement figure at the time of the measurement by another roll electrode. It is an operation | movement figure at the time of measurement of a large grain soybean. It is an enlarged view of a polygonal roll electrode. It is an input-output block diagram of a drying control system. It is a flowchart of a drying control system. It is an example of all the data distribution maps. It is an operation control system diagram of a far-infrared dryer. It is a flowchart of operation control.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Grain moisture measuring device 2 Grain dryer 3 Circulation raising / lowering part 4 Heating burner 5 Far-infrared radiation heating part 6 Suction part 11 Grain input part 12 Grain supply part 13a, 13b Compression roll electrode (compression measurement part)
21 Control processing part 31a Circumferential groove (sequential transfer means)
31 Grooved roll 32 Side receiving plate (Sequential transfer means)
33 Rotating plate (Sequential transfer means)
33a, 33b seat (sequential transfer means)
34 Rotating plate (Sequential transfer means)
34a, 34b, 34c Notch (sequential transfer means)
41 roll electrode 41a, 41b, 41c uneven surface 42 roll electrode G grain (measurement sample)
G1, G2, G3 kernel L1 center distance r1 circumference radius

Claims (5)

A grain supply unit that sends out one grain at a time, and a compression measurement unit that measures the moisture value of the compressed grain using two opposed compression rolls that compress the grain received from the grain supply unit as a pair of electrodes And a data processing unit that calculates the grain moisture value based on the conversion process and the average process of the measurement value, the compression measurement unit is formed by forming at least one roll electrode with a large and small peripheral radius In the grain moisture measuring device of the grain dryer configured to be able to select a large and small compression gap by the rotation angle position,
The grain supply unit is provided with large and small sorting recesses having diameters that can be sorted and held according to the grain size of the received grains, and the large and small holding grains are moved by moving the large and small sorting recesses. Grain transfer machine, comprising a sequential transfer means for sequentially transferring the squeeze to a delivery position, wherein the transfer operation of the sequential transfer means and the compression operation of the compression roll are interlocked and controlled in accordance with the respective large and small timings. Grain moisture measuring device.   The grain supply unit is provided with a substantially horizontal grooved roll that rotates with a circumferential groove having a large and small cross-sectional shape adjacent to each other in a spiral shape, and the grains in the circumferential groove at a predetermined distance. 2. A grain moisture measuring device for a grain dryer according to claim 1, wherein the grain moisture measuring apparatus is provided with a flat side receiving plate that guides the transfer while receiving and sorting the grains.   The grain according to claim 1, wherein the grain supply unit is configured by tilting a rotating plate having large and small receiving seats that can hold the grain so that they can be discharged on the same circumference. Grain moisture measuring device for grain dryer. A grain supply unit that sequentially transfers the grains one by one, and a compression measurement unit that measures the moisture value of the compressed grain using two opposing compression rolls that receive the grains from the grain supply unit as a pair of electrodes, In the grain moisture measuring device of the grain dryer consisting of the data processing unit that calculates the grain moisture value based on the conversion process and the average process of the measurement value,
The above-mentioned compression measuring section is configured such that a surface shape having different compression action depths is formed on at least one of the roll electrodes, and the action depth can be selected according to the rotation angle position thereof. Grain moisture measuring device. A grain supply unit that sequentially transfers the grains one by one, and a compression measurement unit that measures the moisture value of the compressed grain using two opposing compression rolls that receive the grains from the grain supply unit as a pair of electrodes, In the grain moisture measuring device of the grain dryer consisting of the data processing unit that calculates the grain moisture value based on the conversion process and the average process of the measurement value,
The compression measurement unit is configured such that at least one roll electrode has a polygonal cross-sectional shape, each side thereof is arranged at two or more different center distances, and the center distance can be selected according to the rotation angle position. A grain moisture measuring device for a grain dryer.

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