CN116331869A - Metering and discharging method of water-absorbing grains and metering and discharging mechanism of water-absorbing grains - Google Patents

Metering and discharging method of water-absorbing grains and metering and discharging mechanism of water-absorbing grains Download PDF

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CN116331869A
CN116331869A CN202310329686.8A CN202310329686A CN116331869A CN 116331869 A CN116331869 A CN 116331869A CN 202310329686 A CN202310329686 A CN 202310329686A CN 116331869 A CN116331869 A CN 116331869A
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water
grains
absorbent
discharging
metering
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CN116331869B (en
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狩山昌弘
冈本敏宏
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Fujiwara Techno Art Co Ltd
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Fujiwara Techno Art Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/02Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00Loading or unloading
    • B65G65/30Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34Emptying devices
    • B65G65/40Devices for emptying otherwise than from the top
    • B65G65/42Devices for emptying otherwise than from the top using belt or chain conveyors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/52Weighing apparatus combined with other objects, e.g. furniture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/02Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
    • G01N5/025Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content for determining moisture content

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  • Cereal-Derived Products (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)

Abstract

The invention provides a metering and discharging method of water-absorbing grains and a metering and discharging mechanism of water-absorbing grains, which can periodically change the discharging speed of the water-absorbing grains discharged from a soaking tank and continuously and automatically discharge all the water-absorbing grains to the next process for a set time. The water absorption ratio is calculated by dividing the total weight of the discharged water-absorbent grains from the selected soaking tank by the total weight of the grains before water absorption in the selected soaking tank, the total weight of the water-absorbent grains in the remaining soaking tank is calculated by multiplying the total weight of the grains before water absorption in the remaining soaking tank by the water absorption ratio, the total time taken for starting the discharge of the water-absorbent grains until the end of the discharge of the water-absorbent grains in the designated soaking tank is subtracted from the set time for discharging the whole water-absorbent grains to the next step, the remaining time required for discharging the water-absorbent grains in the remaining soaking tank is calculated, and the total weight of the water-absorbent grains in the remaining soaking tank is divided by the remaining required time, whereby the set value of the discharge rate of the water-absorbent grains from the metering and discharging unit is calculated to change the set value of the discharge rate.

Description

Metering and discharging method of water-absorbing grains and metering and discharging mechanism of water-absorbing grains
Technical Field
The present invention relates to a method and a mechanism for metering and discharging water-absorbing grains, which periodically change the discharge speed of water-absorbing grains obtained by dividing a grain of a predetermined weight into a plurality of soaking tanks and soaking the grain, and continuously discharge the grain to the next step in a set period of time.
Background
In the case of using grains in the form of grains such as gramineae rice, wheat, etc., legume soybean, pea, chickpea, broad bean, etc., as foods, seasonings, etc., in many cases, the grains are soaked in water and water is absorbed, then water is controlled to prepare water-absorbing grains, and then various kinds of processing are performed after the steaming treatment is performed.
For example, in the case of producing soy sauce using soybeans that have not been dehulled or ground as a main material, the soaked water-absorbent soybeans are cooked and mixed with ground wheat, and the koji mold inoculated with Aspergillus is added to a koji-making apparatus, whereby soy sauce koji is produced. The water content of the added koji matrix needs to be adjusted to 42 to 47%, and if too small, the proliferation of the koji mold is retarded, whereas if too large, the mixed mold with poor quality is proliferated. The adjustment of the moisture content of the added yeast base varies depending on the blending ratio of soybean and wheat, but is achieved by, for example, shortening the time for soaking the soybean to limit the water absorption and adjusting the moisture content of the water-absorbed soybean to 50 to 55%.
The capacity of a soaking tank used for soaking grains in water to absorb water is often 5t (ton) or less of the weight of the grains to be treated, and if the weight exceeds 5t, the water absorption degree is not uniform in the upper and lower layers of the stacked layers, and therefore it is not common. In particular, in the case of restricting water absorption of leguminous grains, a large number of soaking tanks having a capacity of 1 to 3t are preferably used in consideration of both quality and productivity.
When the weight of the grain to be treated is less than 5t in 1 day, a plurality of batch-type cooking apparatuses having a capacity of 1 to 2t are provided for use in the cooking treatment after the grain to be treated is immersed in water to prepare the water-absorbing grain, or the same batch-type cooking apparatus is used a plurality of times in 1 day. When the weight of the grain to be treated is 5t or more for 1 day, a continuous cooking device is used in consideration of the operation time and workability.
Recently, a technique for producing a large amount of yeast from grains such as soybean has been developed. The produced koji is not only processed into food or seasoning, but also sold as functional indicator food. For the purpose of producing a large amount of yeast with high efficiency, a large-sized disk-type yeast-making apparatus is used, which is required to be most humanized. In addition, in order to increase the yield of yeast, the number of factories added to a plurality of large-sized disk starter propagation units for 1 day is increasing. In order to produce a yeast with high quality and reproducibility using this apparatus, it is necessary to add a yeast matrix in thin layers in multiple stages, and thus the yeast matrix adding methods described in patent document 1 and patent document 2 have been developed.
The starter base adding methods of patent documents 1 and 2 are premised on that a cereal grain, which is a main material of a certain weight, is treated on the upstream side of a starter for a predetermined time and added to the starter. In order to ensure this precondition, when the water-absorbent grains are prepared by dividing the grains of a predetermined weight into a plurality of soaking tanks and immersing them in the water-absorbent grains, and the grains are steamed by a continuous steaming device before being added to the starter, the water-absorbent grains must be discharged to the continuous steaming device in the next step continuously for a predetermined time. In addition, the main material after the cooking treatment is cooled and then continuously mixed with the auxiliary material such as crushed wheat. In order to keep the blending ratio of the main raw material and the auxiliary raw material constant during the addition, the water-absorbing cereal as the main raw material must be kept at a constant speed to some extent with respect to the discharge speed of the continuous cooker.
Conventionally, in order to divide a grain of a predetermined weight into a plurality of soaking tanks and soak the grain, the water-absorbent grain obtained is continuously discharged to the next step for a set time, and an initial discharge rate of the water-absorbent grain is set by an operator. Then, the adjustment is performed as follows: after starting the discharge at the initial discharge speed set initially, the operator confirms the elapsed time at this time every time the discharge of the water-absorbent grains from the soaking tank is sequentially completed, and increases or decreases the discharge speed of the water-absorbent grains, whereby the entire water-absorbent grains can be discharged at the set time.
Prior art literature
Patent literature
Patent document 1: japanese patent No. 5822511
Patent document 2: chinese patent No. 102732420 specification
Disclosure of Invention
Technical problem to be solved by the invention
The weight of the grains before water absorption of the grains supplied by dividing the grains into a plurality of soaking tanks can be set and measured for each soaking tank. However, the difference in weight of the water-absorbing grains occurs due to the difference in factors that affect the water absorption capacity, such as the harvest time of the grains, the temperature of the grains, and the temperature of the soaking water. Therefore, if the water-absorbent grains are continuously discharged without changing the initial discharge speed that the operator has set initially, the water-absorbent grains cannot be discharged to the next step for a set time. The water absorption capacity herein refers to a value obtained by dividing the weight of the grain before water absorption by the weight of the grain before water absorption.
Since the weight of the water-absorbent grains cannot be accurately grasped as described above, the operator must judge the state of transporting the water-absorbent grains from each of the soaking tanks, and increase or decrease the discharge speed of the water-absorbent grains. Therefore, at least 1 operator must be disposed in the area where the soaking tank is disposed, and the running cost increases due to the labor cost. Further, it is a skilled and difficult task to adjust the discharge speed by the judgment of the operator and discharge all grains of a predetermined weight for a predetermined time to the next step.
The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a method and a mechanism for discharging water-absorbent grains, which control the discharge rate of water-absorbent grains discharged from a soaking tank to be periodically changed by using a metering and discharging means capable of measuring the cumulative weight and the cumulative time, and which automatically and continuously discharge all water-absorbent grains in the soaking tank to the next step for a set time.
Solution to the above technical problems
In order to achieve the above object, a method for metering and discharging water-absorbent grains according to the present invention is a method for metering and discharging water-absorbent grains in which water-absorbent grains of a predetermined weight are each divided into a plurality of soaking tanks by a predetermined weight and soaked in water, wherein the water-absorbent grains discharged from each soaking tank are fed to a metering and discharging unit, and discharged to the next step through the metering and discharging unit, wherein the water-absorbent grains can be discharged at a predetermined discharge rate by the metering and discharging unit, and the cumulative weight of the discharged water-absorbent grains from each soaking tank and the cumulative time taken from the start of discharging the water-absorbent grains from the metering and discharging unit to the end of discharging the water-absorbent grains from each soaking tank from the metering and discharging unit can be measured, starting to discharge the water-absorbent grains at an initial discharge speed prepared in advance, arbitrarily selecting 1 or more soaking tanks from among soaking tanks in which the discharge of the water-absorbent grains is completed, based on a time point at which the water-absorbent grains are discharged from the metering discharge unit until a soaking tank is designated, dividing the cumulative weight of the discharged water-absorbent grains from the selected soaking tank by the cumulative weight of grains before water absorption of the selected soaking tank to obtain a water absorption ratio, multiplying the cumulative weight of grains before water absorption of the remaining soaking tank after the designated soaking tank by the water absorption ratio to calculate the cumulative weight of water-absorbent grains of the remaining soaking tank, the total time taken from the start of discharging the water-absorbent grains to the end of the discharge of the specific soaking tank is subtracted from the set time for discharging all the water-absorbent grains to the next step to calculate the remaining required time for discharging the water-absorbent grains in the remaining soaking tank, and the total weight of the water-absorbent grains in the remaining soaking tank is divided by the remaining required time to calculate the discharge speed of the water-absorbent grains, thereby changing the set value of the discharge speed.
The metering and discharging mechanism of the water-absorbent grains according to the present invention is a metering and discharging mechanism for controlling a control device to continuously discharge all water-absorbent grains from each of the soaking tanks to a next step for a set time, wherein the water-absorbent grains are obtained by dividing each of the water-absorbent grains of a predetermined weight into a plurality of soaking tanks for soaking, and the metering and discharging mechanism is characterized in that the water-absorbent grains discharged from each of the soaking tanks are transported to a metering and discharging unit by a transporting unit, and are discharged to the next step via the metering and discharging unit, the water-absorbent grains can be discharged at a set discharging speed by the metering and discharging unit, and the cumulative weight of the discharged water-absorbent grains from each of the soaking tanks and the cumulative time taken from the start of discharging the water-absorbent grains from the metering and discharging unit to the end of discharging the water-absorbent grains from the metering and discharging unit can be measured, the control means starts discharging the water-absorbing grains at an initial discharge speed prepared in advance, arbitrarily selects 1 or more soaking tanks from among soaking tanks in which the discharge of the water-absorbing grains is completed based on a time point at which the water-absorbing grains are discharged from the metering discharge unit up to a specified soaking tank, divides the cumulative weight of the discharged water-absorbing grains from the selected soaking tank by the cumulative weight of grains before water absorption in the selected soaking tank to obtain a water absorption ratio, multiplies the cumulative weight of grains before water absorption in the remaining soaking tank after the specified soaking tank by the water absorption ratio to calculate the cumulative weight of water-absorbing grains in the remaining soaking tank, the total time taken from the start of discharging the water-absorbent grains to the end of the discharge of the specific soaking tank is subtracted from the set time for discharging all the water-absorbent grains to the next step to calculate the remaining required time for discharging the water-absorbent grains in the remaining soaking tank, and the total weight of the water-absorbent grains in the remaining soaking tank is divided by the remaining required time to calculate the discharge speed of the water-absorbent grains, thereby changing the set value of the discharge speed.
According to the method and the mechanism for metering and discharging water-absorbing grains of the present invention, the water-absorbing grain accumulation weight in the remaining soaking tank is calculated by using the metering and discharging means capable of measuring the accumulation weight and the accumulation time, and the remaining time required for discharging the water-absorbing grains in the remaining soaking tank is calculated, and the set value of the discharge speed is periodically changed by calculating the discharge speed of the water-absorbing grains from the next soaking tank, whereby all the water-absorbing grains can be continuously discharged to the next process within the set time.
In the above-described method for metering and discharging water-absorbent grains and the mechanism for metering and discharging water-absorbent grains according to the present invention, the initial discharge speed is preferably obtained from the following values: the water absorption capacity estimated from the actual results is used as an initial water absorption capacity, the predetermined weight of the grains is multiplied by the initial water absorption capacity to calculate the weight of the water-absorbing grains, and the weight of the water-absorbing grains is divided by the set time. According to this configuration, since the water absorption capacity estimated from the actual results is used, the initial discharge speed from the metering and discharging means can be appropriately set for the water-absorbent grains from the initial soaking tank, not only depending on the judgment of the operator.
Preferably, the weighing and discharging means includes a storage tank and a weighing and discharging device, and when the completion of the conveyance of the water-absorbent grains from each of the soaking tanks to the storage tank is detected, the weight sensor measures the residual weight of the water-absorbent grains remaining in the weighing and discharging means, or estimates the residual weight from a result value, and adds the residual weight to the cumulative weight of the water-absorbent grains discharged from the weighing and discharging device, thereby obtaining the cumulative weight of the discharged water-absorbent grains. According to this configuration, since the cumulative weight of the water-absorbent grains discharged can be calculated at the time point when the end of the conveyance of the water-absorbent grains from each of the soaking tanks to the storage tank is detected, the water-absorbent grains can be continuously discharged to the next step without interrupting the discharge of the water-absorbent grains from the metering and discharging means even when the discharge of the water-absorbent grains from the soaking tank is switched to the next soaking tank or when the batch is switched. This stabilizes the quality in the next step and improves the work efficiency.
Effects of the invention
As described above, the effect of the present invention is to obtain the water absorption capacity of the discharged water-absorbent grains, and calculate the discharge rate of the water-absorbent grains from the next soaking tank and periodically change the set value of the discharge rate, so that the water-absorbent grains can be continuously discharged to the next step for the set time, and the series of steps can be automated. Therefore, according to the present invention, the operator can reduce the labor cost and the running cost without adjusting the discharge speed of the water-absorbing grains. Further, since the adjustment is not performed by judgment based on the experience of the operator, more accurate discharge can be achieved.
Drawings
Fig. 1 is a schematic configuration view showing an example of an arrangement of a metering and discharging mechanism for water-absorbing grains according to an embodiment of the present invention.
Fig. 2 is a schematic diagram showing a starter propagation apparatus used in an adding step in an embodiment of the present invention.
Fig. 3 is a side view for explaining measurement of the cumulative weight and the cumulative time according to an embodiment of the present invention.
Fig. 4 is a flowchart showing a metering discharge method according to an embodiment of the present invention.
Fig. 5 is a view showing a state in which the entire weight of the water-absorbed soybeans of the No.4 soaking tank is discharged to the metering discharge unit in one embodiment of the present invention.
Fig. 6 is a view showing the moment when the entire weight of the water-absorbed soybeans of the No.4 soaking tank is discharged from the metering and discharging unit in an embodiment of the present invention.
Detailed Description
Hereinafter, a method for metering and discharging water-absorbent grains and a mechanism for metering and discharging water-absorbent grains according to an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a schematic configuration diagram showing an example of an arrangement of a metering and discharging mechanism 1 for water-absorbing grains according to an embodiment of the present invention. For convenience of explanation, the shape of each device of fig. 1 is simplified, and the scale of each device is also different. The same is true in fig. 2, 3, 5 and 6.
As shown in fig. 1, the method for metering and discharging water-absorbing grains according to the present invention is used in a state in which a metering and discharging unit 13 and a control device 14 are combined on a plurality of soaking tanks 11 and a belt conveyor 12 as a conveying unit. The metering and discharging mechanism 1 may be a mechanism comprising at least the metering and discharging unit 13 and the control device 14, or may be a mechanism in which a plurality of immersing tanks 11 and belt conveyors 12 are combined.
The soaking tank 11 includes a soaking tank body 111 and a discharge gate 112. The metering and discharging unit 13 includes a storage tank 131 as a storage unit for the water-absorbing grains, a belt scale 132 as a metering and discharging device, and a load cell 133 as a weight measuring unit. The load cell 133 can measure the weight of the water-absorbing grains remaining in the metering and discharging unit 13 with the storage tank 131 and the belt balance 132 as a tare.
At the beginning of the soaking, a grain of a predetermined weight is divided into pieces of predetermined weight and soaked in each soaking tank 11. The water-absorbent grains obtained in the steeping vat body 111 are discharged onto the belt conveyor 12 by opening a discharge gate 112 provided below the steeping vat body 111. The water-absorbing grains on the belt conveyor 12 are conveyed to the metering and discharging unit 13, and are output to the next process via the metering and discharging unit 13. The main steps of the next step are a cooking step of cooking the water-absorbing cereal, and an adding step of adding a yeast base obtained by mixing a secondary material or aspergillus with the cooked cereal subjected to the cooking step to a yeast maker.
Fig. 2 is a schematic diagram of the starter propagation apparatus 2 used in the adding step. Fig. 2 (a) is a plan view, and fig. 2 (b) is a side view. In fig. 2 b, a curved substrate 20 (arrow a) conveyed by an addition conveyor 23 is fed onto a circular culture bed 21 rotating around a central axis 22. The addition conveyor 23 moves in the radial direction of the circular culture bed 21, thereby allowing the curved substrate 20 to be added in the radial direction of the circular culture bed 21. After the completion of the 1 st rotation of the circular culture bed 21, a 1 st stacked layer is formed on the circular culture bed 21. In the following rotation of the round culture bed 21 in the 2 nd week, a layer 2 is formed on the layer 1 layer. The number of stacked layers is gradually increased in the same manner.
When the starter propagation device 2 having the circular culture bed 21 is used, if the addition is not completed when the number of rounds of the circular culture bed 21 is an integer, a difference in the number of stacked layers in the circumferential direction occurs, and the number of layers increases in a part or decreases in a part. In these cases, there is a problem that a difference of 1 layer in height occurs in the thickness of the deposited layer of the yeast base 20 at the end of the addition, and even ventilation to the yeast base 20 is not possible in the yeast making step performed after the end of the addition step.
As will be described in detail later, according to the present invention, the whole of the water-absorbent grains from the soaking tank 11 can be automatically discharged to the next step continuously for a set time, and therefore, in the downstream-side adding step, the whole of the yeast base material 20 can be added to the circular culture bed 21 for a set time. Therefore, when the number of rounds of the circular culture bed 21 is an integer, the addition can be ended.
Next, the metering discharge unit 13 will be specifically described. In fig. 1, the water-absorbent grains delivered to the metering discharge unit 13 are stored in the storage tank 131, and then discharged onto the belt scale 132. The belt scale 132 is a device capable of conveying the water-absorbent grains with a belt while calculating the accumulated weight of the water-absorbent grains. The belt balance 132 can use a general purpose product, and can calculate the cumulative weight from the values of the belt speed and weight sensor. Since the water-absorbed cereal from the steeping tank 11 is sent to the belt scale 132, the accumulated weight of the discharged water-absorbed cereal from the steeping tank 11 can be measured by the belt scale 132.
By limiting the height of the water-absorbing grains on the belt scale 132 by a gate (not shown) at the entrance of the belt scale 132 and controlling the belt speed, the discharge speed (weight/time) of the water-absorbing grains from the belt scale 132 can be adjusted, and the water-absorbing grains can be discharged at the set discharge speed.
Further, with the metering and discharging unit 13, the cumulative time taken for the water-absorbing grains to flow from the start of discharge to the end of discharge of the metering and discharging unit 13 can be measured. The measurement of the cumulative weight and the cumulative time will be described with reference to fig. 3. Fig. 3 is a diagram showing the conveyance state of the water-absorbent grains 10 in the metering and discharging unit 13 in time series.
If the water-absorbing cereal 10 from the 1 st steeping vat 11 starts to be transported to the storage vat 131 via the belt conveyor 12, the weight measured by the load cell 133 gradually increases. Control of the operation and stop of the belt conveyor 12 will be described later. Fig. 3 (a) shows a state in which the weight of the water-absorbing grains 10 in the metering and discharging unit 13 reaches the upper limit weight value and the belt conveyor 12 is stopped and the belt balance 132 of the metering and discharging unit 13 is immediately before operation. In this state, the front end 10a of the water-absorbing cereal 10 is located at the entrance of the belt scale 132. From this state, the operation of the belt balance 132 is started.
Fig. 3 (b) shows a state immediately before the operation of the belt balance 132 is started and the water-absorbent grain 10 is discharged from the metering and discharging unit 13. In this state, the front end 10a of the water-absorbing cereal 10 reaches the outlet of the belt scale 132. The time obtained by adding the time at which the operation of the belt scale 132 starts and the time at which the front end 10a of the water-absorbing grain 10 reaches the outlet of the belt scale 132 is taken as the discharge start time (time zero) of the water-absorbing grain 10 from the metering and discharging unit 13, and the measurement of the accumulated weight of the discharged water-absorbing grain is started from this time point. Since the position of the front end 10a of the water-absorbing grain 10 in fig. 3 (a) is always the same, the moving distance of the front end 10a of the water-absorbing grain 10 (the distance between the entrance and the exit of the belt balance 132) is always constant. Therefore, the time when the front end 10a of the water-absorbing grain 10 of fig. 3 (a) reaches the outlet of the belt scale 132 can be calculated from the belt speed of the belt scale 132, and the discharge start time (time zero) of the water-absorbing grain 10 from the metering and discharging unit 13 can be measured.
The discharge start time (time zero) of the water-absorbing cereal 10 from the metering discharge unit 13 may also be detected by other methods. For example, a flow sensor may be provided at the outlet of the belt balance 132, and after the start of the operation of the belt balance 132, the time point at which the flow sensor detects the tip 10a of the water-absorbent grain 10 may be set as the discharge start time (time zero) of the water-absorbent grain 10.
If the operation of the belt balance 132 is started and the weight of the water-absorbing grain 10 measured by the load cell 133 is lower than the upper limit weight value by a certain amount, the operation of the belt conveyor 12 is restarted. Thereafter, the operation and stop of the belt conveyor 12 are repeated with reference to the upper limit weight value. Fig. 3 (c) shows a state before the water-absorbent grain 10 is discharged from the seat 1 soaking tank 11 and the water-absorbent grain 10 is discharged from the seat 2 soaking tank 11. In this state, the end 10b of the water-absorbing cereal 10 is located at the upper portion in the storage tank 131. When the water-absorbing grain 10 is not detected for a certain period of time by a flow sensor (not shown) provided at the outlet of the belt conveyor 12 in a state where the discharge gate 112 of the 1 st soaking tank 11 is opened and the belt conveyor 12 is also in operation, it is determined that the 1 st end 10b is located in the storage tank 131 as shown in fig. 3 (c).
At this time point, the total weight of the water-absorbing grains discharged from the belt balance 132 and the weight of the water-absorbing grains 10 remaining in the metering discharge unit 13, which is measured by the load cell 133, can be set as the water-absorbing grain total weight from the 1 st soaking tank 11. Then, when the belt balance 132 is continuously operated and the accumulated weight of the water-absorbent grains discharged from the belt balance 132 reaches the accumulated weight of the water-absorbent grains from the 1 st soaking tank 11, the discharge end time of the water-absorbent grains 10 from the 1 st soaking tank 11 is reached. The time from the discharge start time to the discharge end time becomes the cumulative time required for the water-absorbing cereal 10 from the 1 st steeping vat 11 to be discharged from the metering discharge unit 13.
On the other hand, when the water-absorbent grain 10 from the 2 nd steeping vat 11 is fed into the storage vat 131 before the storage vat 131 storing the water-absorbent grain 10 from the 1 st steeping vat 11 is empty, the water-absorbent grain 10 is continuously discharged from the storage vat 131. Therefore, the water-absorbent grains 10 from the 1 st soaking tank 11 and the water-absorbent grains 10 from the 2 nd soaking tank 11 are not in a discontinuous state. Therefore, the discharge end time from the metering discharge unit 13 for the water-absorbent grain 10 from the 1 st soaking tank 11 directly becomes the discharge start time from the metering discharge unit 13 for the water-absorbent grain 10 from the 2 nd soaking tank 11, and the measurement of the accumulated time is not interrupted. The soaking tanks 11 of the 2 nd and subsequent soaking tanks are also configured such that the discharge end time from the metering discharge unit 13 for the water-absorbent grains 10 from the current soaking tank 11 is set to the discharge start time from the metering discharge unit 13 for the water-absorbent grains 10 from the next soaking tank 11, whereby the cumulative weight of the water-absorbent grains and the cumulative time required for discharging the water-absorbent grains 10 can be measured.
In the above example, as shown in fig. 3 (c), the state in which the end 10b of the water-absorbent grain 10 from the 1-seat steeping vat 11 is positioned at the upper portion in the storage vat 131 is detected by the flow sensor provided at the outlet of the belt conveyor 12, but detection can be performed without using the flow sensor. Even if the discharge of the water-absorbing cereal 10 from the 1 st soaking tank 11 is completed, the discharge of the water-absorbing cereal 10 from the 2 nd soaking tank 11 is stopped in advance, and the charging of the water-absorbing cereal 10 into the storage tank 131 is stopped, the height of the water-absorbing cereal 10 in the storage tank 131 continues to decrease, and the weight of the metering discharge unit 13 continues to decrease. Therefore, it is sufficient to determine that the end 10b of the water-absorbent grain 10 from the 1-seat soaking tank 11 is located at the upper portion in the storage tank 131 at the time point when the weight of the water-absorbent grain is reduced to a predetermined weight (for example, 1 t) determined in advance.
Hereinafter, the present embodiment will be specifically described with reference to numerical examples. The numerical example is merely an example, and may be changed as appropriate, and is not limited thereto. The grain to be absorbed is not particularly limited, but the soybean is used as an example in the present embodiment. For convenience, reference numeral 10 of the water-absorbing cereal 10 is also used for the water-absorbing soybeans. In this embodiment, soaking is performed in a batch unit. The batch refers to a production unit in which a specified weight of grain is taken as 1 batch. In the present embodiment, the water-absorbent soybeans 10 obtained by dividing 1 lot of soybeans 50t (ton) as the main material of the yeast base 20 (see fig. 2) into 2 lines each of which is soaked at 25t are finally added to 1 disc-type yeast making apparatus through a steaming process or the like. That is, the metering and discharging mechanism 1 shown in fig. 1 is provided as 2 production lines for use. 10 soaking tanks 11 with the same specification are arranged on 1 production line. In this case, the weight of the soybeans put into the 1-seat soaking tank 11 was 2.5t, and the amount of the put soybeans and water and the soaking time were set at the same values in all the soaking tanks 11 of the 2 production lines. The water-absorbent soybeans 10 are discharged from the metering and discharging unit 13 for a set time of 150 minutes.
The operation and stop of the belt conveyor 12 as the conveying means are controlled by the control device 14, but the control means is not particularly limited, and for example, the weight of the water-absorbent soybeans 10 remaining in the metering and discharging means 13 may be used as a reference. In this case, the upper limit weight of the remaining water-absorbent soybeans 10 may be set to 1.2t, and if the weight exceeds 1.2t, the belt conveyor 12 may be stopped, and if the weight is 1.1t or less, the operation may be restarted. The upper limit weight value of 1.2t is preset in consideration of the volume of the reservoir tank 131. Further, a weight sensor may be provided in the storage tank 131, and an upper limit weight value of the storage tank 131 may be set, and if the upper limit weight value is exceeded, the belt conveyor 12 may be stopped.
The reference for the operation and stop of the belt conveyor 12 is not limited to the weight, and for example, an upper limit level sensor may be provided at the uppermost portion of the storage tank 131, and if the water-absorbent soybean 10 is filled up to the position of the upper limit level sensor, the belt conveyor 12 may be stopped.
In the present embodiment, for convenience, the soaking tank 11 on the most upstream side is referred to as a No.1 soaking tank 11, and the nth soaking tank 11 from the No.1 soaking tank 11 is referred to as a No. n soaking tank 11. The discharge speed is the discharge speed of the water-absorbent soybeans 10 from the metering discharge unit 13, more specifically, from the belt balance 132.
The metering and discharging method according to the present embodiment will be described below with reference to the flowchart of fig. 4 in order of steps. In fig. 4, when the operation is started, the discharge of the water-absorbent soybeans 10 from the No.1 soaking tank 11 is started, and after the weight of the metering and discharging unit 13 reaches the upper limit weight value, the belt balance 132 provided in the metering and discharging unit 13 is driven at the initial discharge speed (step 100 in fig. 4).
As the initial discharge speed, a value prepared in advance is used. The value may be appropriately estimated from actual results. Specifically, the initial water absorption rate is calculated by multiplying the total weight of the soybeans immersed in the immersing tank 11 by the initial water absorption rate, which is the water absorption rate estimated from the actual results, and the total weight of the water-absorbent soybeans 10 is calculated by dividing the total weight of the water-absorbent soybeans 10 by the set time, and the initial discharge rate is obtained. According to this calculation procedure, since the water absorption capacity estimated from the actual results is used, the initial discharge speed from the metering and discharging means 13 can be appropriately set for the water-absorbent soybeans 10 from the No.1 soaking tank 11, not only depending on the judgment of the operator.
In the present embodiment, the water absorption ratio used for the calculation of the initial discharge velocity is set to 2.00 according to the past actual results. When the water absorption capacity was multiplied by 2.00 to 25t, the estimated value of the weight of the water-absorbed soybean was 50t. If this value is divided by the set time of 150 minutes, the initial discharge speed of 20t/h is calculated.
As described with reference to fig. 3, the measurement of the cumulative weight and the cumulative time starts from the point in time when the front end 10a of the water-absorbing soybean 10 reaches the outlet of the belt scale 132 as shown in fig. 3 (b). That is, the state of fig. 3 b is the discharge start time (time zero) of the water-absorbent soybean 10, and the cumulative weight at this time is zero.
When the discharge of the water-absorbent soybeans 10 to the designated soaking tank 11 is completed (step 101 in fig. 4), a new discharge rate is calculated (step 102 in fig. 4). Although there are a plurality of new calculation steps of the discharge speed, a typical example will be described here, and a modified example will be described later. Hereinafter, a change in the discharge speed of the water-absorbent soybeans 10 from the No.5 soaking tank 11 immediately before being discharged from the metering and discharging unit 13 will be described. In this state, the designated soaking tank 11 from which the water-absorbent soybeans 10 are discharged from the metering discharge unit 13 is the No.4 soaking tank 11 closest to the No.5 soaking tank 11.
Fig. 5 shows a state in which the entire weight of the water-absorbent soybeans 10 of the No.4 soaking tank 11 is discharged to the storage tank 131 of the metering discharge unit 13. This state is immediately before the water-absorbent soybeans 10 are discharged from the No.5 soaking tank 11. As shown in FIG. 5, the end 10b of the water-absorbent soybeans 10 of No.4 soaking tank 11 is located at the upper portion inside the storage tank 131. As described above, this condition is detected by the flow sensor provided at the outlet of the belt conveyor 12. The control device 14 detects the weight (1 t) of the water-absorbent soybeans 10 remaining in the metering and discharging unit 13 at this point in time. At the same time as the detection, the control device 14 issues an instruction to open the discharge gate 112 of the lower portion of the No.5 soaking tank 11, and discharges the water-absorbent soybeans 10 from the No.5 soaking tank 11.
Accordingly, the control device 14 adds the weight 1t of the water-absorbent soybeans 10 remaining at the metering and discharging unit 13 at the time point of detecting the residual weight to the accumulated weight 18.5t of the water-absorbent soybeans discharged from the metering and discharging unit 13 before the time point of detecting the residual weight. As a result, the total weight of the discharged water-absorbent soybeans from No.1 soaking tank 11 to No.4 soaking tank 11 was calculated to be 19.5t. This calculation was performed in a state where the water-absorbent soybeans from the No.4 steeping vat 11 remained in the metering and discharging unit 13, but was based on the time point at which the water-absorbent grains 10 of the No.4 steeping vat 11 were discharged from the metering and discharging unit 13.
The control device 14 divides the weight of the discharged water-absorbed soybeans by the cumulative weight of the soybeans before water absorption of 10t (2.5tX4 seats) fed to the No.1 soaking tank 11 to the No.4 soaking tank 11 to obtain a new water absorption capacity of 1.95. If the water absorption capacity 1.95 is multiplied by 15t (2.5tX6 seat) of the total weight of the soybeans before the water absorption in the soaking tank 11 of Nos. 5 to 10 remaining after the soaking tank 11 of No.4, the estimated value of 29.25t of the total weight of the soybeans after the water absorption in the remaining soaking tank 11 is calculated.
Fig. 6 shows the instant at which the entire weight of the water-absorbent soybeans 10 of the No.4 soaking tank 11 is discharged from the metering and discharging unit 13 after a lapse of time from fig. 5. In this state, the end 10b of the water-absorbent soybean 10 in the No.4 soaking tank 11 is located at the outlet of the belt scale 132, that is, at the position where the water-absorbent soybean 10 is discharged from the belt scale 132. At this point in time, the accumulated time from the end of the discharge of the water-absorbent soybeans 10 from the No.1 soaking tank 11 to the No.4 soaking tank 11 from the metering discharge unit 13 was 59 minutes. As described with reference to fig. 3, the method of obtaining the cumulative time of 59 minutes is a time from the discharge start time (time zero) of the water-absorbent soybeans 10 to the discharge end time when the cumulative weight of the discharged water-absorbent soybeans reaches 19.5t.
The remaining required time for the discharge of the water-absorbent soybeans 10 of the remaining soaking tank 11 was calculated by subtracting the accumulated time 59 minutes from the set time 150 minutes. The accumulated weight of the water-absorbed soybeans in the remaining soaking tank 11 was divided by the remaining required time of 91 minutes, and the set value of the discharge rate was calculated as 19.29t/h, and the set value of the discharge rate was changed to a new discharge rate (step 103 in fig. 4). The control device 14 issues an instruction to the belt scale 132 so that the discharge speed of the absorbent soybeans 10 from the metering discharge unit 13 becomes the set value 19.29t/h of the new discharge speed, and the absorbent soybeans from the No.5 soaking tank 11 are discharged from the metering discharge unit 13 at the set value 19.29t/h of the new discharge speed.
Thereafter, the designated soaking tank 11 is updated from the No.4 soaking tank 11 to the No.5 soaking tank 11, and steps 101 to 103 of fig. 4 are repeated as long as there is still a soaking tank 11 to be discharged (step 104 of fig. 4). That is, in the present embodiment, each time the discharge of 1 soaking tank 11 is completed, the designated soaking tank 11 is updated, and the set value of the discharge speed is changed to a new discharge speed.
That is, according to the present embodiment, since the water absorption capacity of the water-absorbing cereal grains 10 that have been discharged from the soaking tank 11 is periodically obtained and the set value of the discharge speed is periodically changed based on the newly obtained water absorption capacity, the water-absorbing cereal grains 10 can be continuously discharged to the next step for the set time, and these series of steps can be automated.
While the above description has been given with reference to the modification examples as appropriate to the embodiment of the present invention, the above embodiment is merely an example, and may be further modified. The modification of the above embodiment is supplemented below.
In fig. 1, 1 belt conveyor 12 is used as the conveying means, but the number and configuration of the grains to be soaked may be appropriately changed as long as the grains to be soaked can be conveyed from the soaking tank 11 to the storage tank 131. For example, in consideration of the arrangement of the soaking tank 11 and the storage tank 131, a conveyor may be provided in each of the soaking tanks 11, and a collective conveyor may be provided on the downstream side of these conveyors, or a general-purpose device such as a belt conveyor or a bucket conveyor may be added and combined.
In fig. 1, the belt conveyor 12 is provided below the immersing tank 11, but the positional relationship between the two is not particularly limited. Even if the belt conveyor 12 is at a position separated from the steeping vat 11, the water-absorbing grains discharged from the steeping vat 11 may be transported by a pump in a state of being mixed with water to the belt conveyor 12. In this case, if a mesh belt having mesh is used as the belt of the belt conveyor 12, water for conveyance can be separated.
In fig. 1, the metering and discharging unit 13 is mainly composed of a storage tank 131 and a belt balance 132, and a conveying device such as a belt conveyor may be interposed between the storage tank 131 and the belt balance 132.
In the above embodiment, the weight of the water-absorbing grain 10 remaining in the metering and discharging unit 13 is measured by the load cell 133 using the storage tank 131 and the belt balance 132 as tares, but the present invention is not limited thereto. For example, the storage tank 131 may be made to be a tare, and the weight of the water-absorbent grain 10 remaining in the storage tank 131 may be measured by a weight sensor. In this case, the weight of the water-absorbing grains 10 remaining in the metering and discharging unit 13 other than the storage tank 131 may be used as the measured value prepared in advance, and the measured value may be added to the total weight.
The measured value prepared in advance may be used as the weight of the water-absorbing cereal 10 remaining in the entire metering and discharging unit 13. Specifically, a quantitative level sensor may be provided below the upper limit level sensor in the storage tank 131, and the weight of the water-absorbing grain 10 remaining in the metering and discharging unit 13 when the water-absorbing grain 10 reaches the position of the quantitative level sensor may be prepared by actual measurement in advance. In this case, measurement by a weight sensor is not required.
As described above, when the actual measurement value of the weight of the water-absorbent grain 10 is prepared in advance, the water-absorbent grain 10 is left in the target range in the metering and discharging unit 13 under the same conditions as those during operation. In this state, the height of the water-absorbing grain 10 on the belt scale 132 is the same as that at the time of operation restricted by the gate. That is, the volume of the water-absorbing cereal 10 remaining in the metering and discharging unit 13 at the time of actual measurement is the same as that at the time of operation. When the water-absorbing grains 10 having different water absorption ratios are filled in the same volume of the container, the weight of each container is substantially the same. Therefore, as described above, if the volume of the water-absorbing cereal grains 10 remaining in the metering and discharging unit 13 at the time of actual measurement is made the same as that at the time of operation, the actual measurement value of the weight is the same as that at the time of operation regardless of the water absorption capacity. For the actual measurement of the weight, the weight may be measured by using the storage tank 131 and the belt balance 132 as the tare, and if the load cell 133 is omitted, the weight of the water-absorbent grain 10 may be directly measured by recovering the water-absorbent grain 10 discharged from the metering and discharging unit 13.
In the above embodiment, the object to be obtained for obtaining the data of the water absorption capacity is the whole soaking tank 11 from the No.1 soaking tank 11 to the designated soaking tank 11, but may be 1 or more soaking tanks 11 selected arbitrarily from the soaking tanks 11 in which the discharge of the water-absorbent grains 10 is completed. For example, only the specified soaking tank 11 which is the closest soaking tank 11 to the soaking tank 11 immediately before the discharge may be selected, or the soaking tank 11 (about 2 or 3 total) including the specified soaking tank 11 which is close to the specified soaking tank 11 may be selected. These selection elements are also effective in the case where the temperature of the soaking water that affects the water absorption capacity varies from time to time when soaking is performed sequentially from the No.1 soaking tank 11.
In the case where the specifications of the steeping vat 11 and the weight of the grain supplied to the steeping vat 11 are different, the steeping vat 11 may be selected as the selected steeping vat 11, and the actual result may be similar to the state of the water-absorbent grain 10 in the steeping vat 11 immediately before the discharge (the steeping vat 11 to be discharged next). In this case, the control device 14 may set the selection procedure of the soaking tank 11 in advance.
Hereinafter, the present invention will be described more specifically with reference to examples 1 and 2. The device configuration of example 1 is the same as that of the above-described embodiment described using fig. 1, and therefore, description of various operations is omitted. Note that, since the calculation of the cumulative weight and the cumulative time is similar to the embodiment, the description thereof is omitted. Table 1 shows initial values of example 1 set or calculated before the metering discharge mechanism 1 is operated.
TABLE 1
Figure BDA0004154513600000141
In example 1, the grains having water absorption, which were obtained by dividing 25t grains into 10 soaking tanks 11 and soaking them, were all continuously discharged to the next step for 2 hours and 30 minutes. The initial water absorption capacity was 1.750 estimated from the past results, and the discharge rate of the water-absorbing grains from the No.1 steeping tank 11 was calculated by the measurement and discharge means 13 according to the calculation procedure of table 1.
In example 1, each time the water-absorbent grains from 1 soaking tank 11 were discharged from the metering and discharging unit 13, the water absorption ratio was obtained by selecting the soaking tank 11 in which the water-absorbent grains were completely discharged from the metering and discharging unit 13, the total weight of the remaining water-absorbent grains and the remaining required time were calculated, and the discharge speed of the water-absorbent grains discharged from the metering and discharging unit 13 was calculated to change the set value of the discharge speed. First, the results of the operation of example 1 are shown in table 2.
TABLE 2
Soaking tank No. 1 2 3 4 5 6 7 8 9 10 Totalizing
Grain before water absorption (kg) 2510 2500 2490 2500 2490 2500 2510 2500 2510 2490 25000
Water-absorbing cereal (kg) 4360 4330 4370 4430 4450 4500 4530 4470 4510 4480 44430
Accumulated water absorption multiplying power - 1.737 1.735 1.741 1.749 1.757 1.764 1.770 1.772 1.775 -
Discharge velocity (kg/9 clock) 292 289 287 291 293 295 298 302 304 308 -
Time of discharge (minutes) 14.95 14.97 15.20 15.24 15.20 15.24 15.18 14.82 14.85 14.52 150.17
In example 1, grains were supplied in a weight setting of 2500kg from the No.1 soaking tank 11 to the No.9 soaking tank 11 in order, and then the remaining grains were supplied to the No.10 soaking tank 11. The total weight of the materials supplied to each soaking tank 11 was 25000kg, although the weight was slightly varied. In table 2, the weight of the grains before water absorption, the weight of the grains after water absorption and the discharge time are measured values, and the cumulative water absorption capacity and the discharge speed in the past are calculated values based on the measured values. The previous cumulative water absorption capacity refers to the cumulative water absorption capacity of all the soaking tanks before the No. n soaking tank 11. For example, the conventional cumulative water absorption capacity of the No.5 soaking tank 11 in Table 2 is a value obtained from the values of the No.1 to 4 soaking tanks 11 preceding the No.5 soaking tank 11 (see Table 3 for details).
The calculation procedures for the soaking tank No.2 11 and the following in example 1 are specifically shown in table 3 below, taking the time point of discharging the water-absorbed grains from the soaking tank No.4 to the soaking tank 11 from the metering and discharging unit 13 as a reference, and the calculation procedures for the discharge of the water-absorbed grains from the soaking tank No.5 are shown in the following table.
TABLE 3
Figure BDA0004154513600000161
Table 3 shows the computational requirements associated with the No.5 soaking tank 11, but the same is true for the other soaking tanks 11. Further, the premise of Table 3 is that the calculations of the discharge speeds and the like up to the soaking tank 11 of Nos. 1 to 4 are completed, and are already in operation. As described above, the specified soaking tank 11 refers to the soaking tank 11 closest to the soaking tank 11 immediately before the discharge. In Table 3, no.5 soaking tank 11 is in a state of being about to be discharged, and No.4 soaking tank 11 is a specified soaking tank 11.
In example 1, as shown in table 3, the total soaking tanks of the soaking tanks No.1 11 to No.4 soaking tank 11 were the object of the cumulative weights (sw 14, aw 14) for determining the water absorption capacity. As shown in table 3, the water absorption capacity WA14 WAs obtained from the values of sw14 and aw 14. This value is the cumulative water absorption capacity 1.749 of the No.5 soaking tank 11 in Table 2.
When the water absorption capacity WA14 is obtained, as shown in table 3, the cumulative weight sw510 of the grains before water absorption in the soaking tanks 11 of nos. 5 to 10 is multiplied by the water absorption capacity WA14, whereby the cumulative weight aw510 of the grains before water absorption in the soaking tanks 11 of nos. 5 to 10 can be calculated. The cumulative time t14 of the discharge of the soaking tanks 11 of Nos. 1 to 4 in Table 3 is the sum of the discharge times of the soaking tanks 11 of Nos. 1 to 4 in Table 2. As shown in table 3, the remaining required time T510 for the discharge of the water-absorbent grains in the soaking tanks 11 of nos. 5 to 10 was obtained by subtracting T14 from the set time T (150 minutes: see table 1). The discharge speed S5 from the metering and discharge unit 13 can be calculated for the No.5 soaking tank 11 by using aw510 and t510.
In example 1, as is clear from table 2, the discharge speed from the metering and discharging unit 13 is gradually changed in accordance with the fluctuation of the integrated water absorption capacity in the past. As a result, the cumulative time required for the water-absorbing grains from the soaking tanks 11 of Nos. 1 to 10 to be discharged from the metering and discharging unit 13 was 150.17 minutes. This value exceeds 0.17 minutes with respect to 150 minutes (see table 1) of the set value, but the difference is a fine difference and is within the allowable range.
In example 1, as shown in table 2, the initial setting of the discharge rate was 292 kg/min. In the comparative examples in which this value was maintained at all times, the cumulative time required for the water-absorbing grains in the soaking tanks 11 of Nos. 1 to 10 to be discharged from the metering and discharging unit 13 was 152.16 minutes, which is a value obtained by dividing the cumulative weight of 44430kg (the total weight of the water-absorbing grains in Table 2) by 292 kg/minute. This value exceeds 2.16 minutes with respect to 150 minutes of the set point, and the difference is not said to be a fine difference but is outside the allowable range.
More specifically, as described with reference to fig. 2, when the starter propagation device 2 having the circular culture bed 21 is used, if the addition is not completed when the number of windings of the circular culture bed 21 is an integer, a difference in the number of layers deposited in the circumferential direction occurs, and there is a problem that the starter substrate 20 cannot be uniformly aerated. In the case where the rotation speed of the circular culture bed 21 shown in FIG. 2 is 25 minutes/1 week, the rotation angle per minute is 14.4 degrees (360 degrees/25 minutes). The effect of example 1 can be understood by converting the difference of 2.16 minutes in comparative example to 31.1 degrees (14.4 degrees/min×2.16 minutes) and converting the difference of 0.17 minutes in example 1 to 2.4 degrees (14.4 degrees/min×0.17 minutes) to a fine difference.
Example 2 will be described below. In example 1, the water absorption capacity was obtained by selecting the soaking tank 11 in which all the water-absorbent grains were discharged from the metering discharge unit 13, but in example 2, the water absorption capacity was obtained by selecting only the nearest soaking tank 11. In example 1, as shown in table 2, since the weight (kg) of the grains before water absorption and the weight (kg) of the grains after water absorption in each soaking tank 11 were measured, the numerical value of example 1 was used in example 2 for simulation. First, the results of the simulation performed as example 2 are shown in table 4.
TABLE 4
Soaking tank No. 1 2 3 4 5 6 7 8 9 10 Totalizing
Grain before water absorption (kg) 2510 2500 2490 2500 2490 2500 2510 2500 2510 2490 25000
Water-absorbing cereal (kg) 4360 4330 4370 4430 4450 4500 4530 4470 4510 4480 44430
Recent water absorption capacity - 1.737 1.732 1.755 1.772 1.787 1.800 1.805 1.788 1.797 -
Discharge velocity (kg/min) 292 289 288 293 296 299 302 303 299 302 -
Time of discharge (minutes) 14.95 14.97 15.16 15.13 15.03 15.05 15.01 14.76 15.10 14.85 150.01
The initial values of example 2 are the same as those of table 1 of example 1. The weight of the grains before water absorption in each soaking tank 11 in table 4 was directly the value of table 2 in example 1. In table 4, the recent water absorption capacity and the recent discharge rate were calculated based on the values used. The latest previous latest water absorption capacity refers to the water absorption capacity of the 1-seat soaking tank 11 before the No. n soaking tank 11. For example, the latest water absorption capacity of the No.5 soaking tank 11 in Table 4 is a value obtained from the numerical value of the soaking tank 11 of the 1 seat of the No.4 soaking tank 11 before the No.5 soaking tank 11 (see Table 5 for details). The discharge time in each of the soaking tanks 11 was obtained by dividing the weight of the water-absorbent grains by the discharge speed.
The calculation procedures for the No.2 soaking tank 11 and the subsequent steps in example 2 are specifically shown in the following Table 5, taking the time point of discharging the water-absorbed grains from the No.4 soaking tank 11 to the metering and discharging unit 13 as a reference, and the calculation procedures for the discharge of the water-absorbed grains from the No.5 soaking tank 11.
TABLE 5
Figure BDA0004154513600000191
Table 5 shows the computational requirements associated with the No.5 soaking tank 11, but the same is true for the other soaking tanks 11. Further, the premise of Table 5 is that the calculations of the discharge speeds and the like up to the soaking tank 11 of Nos. 1 to 4 are completed, and are already in operation. As described above, the specified soaking tank 11 refers to the soaking tank 11 closest to the soaking tank 11 immediately before the discharge. In Table 5, no.5 soaking tank 11 is in a state of being about to be discharged, and No.4 soaking tank 11 is a specified soaking tank 11.
In example 1, as shown in table 3, the object of the cumulative weight used in the calculation of the water absorption capacity was the entire soaking tank 11 of the No.1 soaking tank 11 to the No.4 soaking tank 11, but in example 2, the 1 st No.4 soaking tank 11 was the designated soaking tank 11. This point is different from example 1 and example 2. Except for this, the calculation procedure of example 2 was the same as that of example 1.
In example 2, as is clear from table 4, each time the past recent water absorption capacity fluctuates, the discharge speed from the metering discharge unit 13 changes in accordance with the past recent water absorption capacity fluctuation. As a result, the cumulative time required for the water-absorbing grains from the soaking tanks 11 of Nos. 1 to 10 to be discharged from the metering and discharging unit 13 was 150.01 minutes. This value exceeds 0.01 minutes with respect to 150 minutes (see table 1) of the set value, but the difference is a fine difference and is within the allowable range.
In contrast to this, the effect of example 2 can be understood by converting the difference of 2.16 minutes in the comparative example to 31.1 degrees (14.4 degrees/min×2.16 minutes) as the rotation angle of the circular culture bed 21, and converting the difference of 0.01 minutes in the example 2 to 0.1 degrees (14.4 degrees/min×0.01 minutes) as the rotation angle as the fine difference.
As a result of comparing the results of example 1 and example 2, example 2 is more excellent if judged only by the difference in the discharge time, but if the variation in the water absorption capacity is different, the effect may be reversed. That is, there is no advantage or disadvantage between the case where the water absorption ratio calculation target as in example 1 is a plurality of soaking tanks 11 including the designated soaking tank 11 and the case where the water absorption ratio calculation target as in example 2 is 1 designated soaking tank 11, and the calculation needs to be appropriately selected while taking into consideration the environmental change or the like that affects the water absorption ratio. For example, when the temperature of the immersion water that affects the water absorption capacity changes from moment to moment, the water absorption capacity calculation target as in example 2 is set to 1 calculation key of the designated immersion tank 11.
In the present invention, the total weight of the water-absorbing grains remaining in the water-absorbing grain tank is calculated by dividing the total weight of the water-absorbing grains discharged by the total weight of the grains before water absorption to obtain the water absorption capacity, and the total weight of the grains before water absorption remaining in the water-absorbing grain tank is multiplied by the water absorption capacity. However, even if the water absorption capacity is derived in a different manner from the present invention, the derivation process is substantially the same as the calculation formula of the present invention, and the effect is the same as the calculation formula of the present invention, and the derivation process can be regarded as being included in the present invention.
Description of the reference numerals
1 metering and discharging mechanism
11. Soaking tank
111. Main body of soaking tank
112 discharge gate
12 belt conveyor (conveying unit)
13 metering discharge unit
131 storage tank
132 belt type balance
133 force measuring cell
14 control apparatus
10 water-absorbing cereal and water-absorbing soybean
20 curve matrix.

Claims (2)

1. A method for metering and discharging water-absorbing grains, which is a method for metering and discharging water-absorbing grains, wherein the water-absorbing grains are all continuously discharged to the next process for a set time, the water-absorbing grains are obtained by dividing grains of a set weight into a plurality of soaking tanks for soaking, characterized in that,
The water-absorbing grains discharged from each soaking tank are conveyed to a metering and discharging unit, discharged to the next process through the metering and discharging unit,
the metering and discharging unit is used for discharging the water-absorbing grains at a set discharging speed, and measuring the accumulated weight of the discharged water-absorbing grains from each soaking tank and the accumulated time taken from the start of discharging the water-absorbing grains from the metering and discharging unit to the end of discharging the water-absorbing grains from each soaking tank from the metering and discharging unit,
the water-absorbent grains are initially discharged at an initial discharge speed prepared in advance,
based on the point in time at which the water-absorbing cereal grains are discharged from the metering and discharging unit up to the specified steeping vat,
optionally selecting 1 or more soaking tanks from soaking tanks in which the discharge of the water-absorbent grains is completed, dividing the accumulated weight of the discharged water-absorbent grains from the selected soaking tank by the accumulated weight of grains before water absorption in the selected soaking tank to obtain a water absorption ratio, multiplying the accumulated weight of grains before water absorption in the remaining soaking tanks after the designated soaking tank by the water absorption ratio to calculate the accumulated weight of water-absorbent grains in the remaining soaking tanks,
The remaining time required for discharging the water-absorbent grains of the remaining soaking tank is calculated by subtracting the accumulated time taken from the start of discharging the water-absorbent grains until the end of the discharge of the specified soaking tank from the set time for discharging all the water-absorbent grains to the next step,
and calculating the discharge speed of the water-absorbent grains by dividing the accumulated weight of the water-absorbent grains in the residual soaking tank by the residual required time, thereby changing the set value of the discharge speed.
2. A metering and discharging mechanism for water-absorbing grains, which is controlled by a control device to continuously discharge all water-absorbing grains to the next process for a set time, wherein the water-absorbing grains are obtained by dividing grains of a set weight into a plurality of soaking tanks for soaking,
the water-absorbing grains discharged from each soaking tank are conveyed to a metering and discharging unit by a conveying unit, are discharged to the next process by the metering and discharging unit,
the metering and discharging unit is used for discharging the water-absorbing grains at a set discharging speed, and measuring the accumulated weight of the discharged water-absorbing grains from each soaking tank and the accumulated time taken from the start of discharging the water-absorbing grains from the metering and discharging unit to the end of discharging the water-absorbing grains from each soaking tank from the metering and discharging unit,
The control apparatus
The water-absorbent grains are initially discharged at an initial discharge speed prepared in advance,
based on the point in time at which the water-absorbing cereal grains are discharged from the metering and discharging unit up to the specified steeping vat,
optionally selecting 1 or more soaking tanks from soaking tanks in which the discharge of the water-absorbent grains is completed, dividing the accumulated weight of the discharged water-absorbent grains from the selected soaking tank by the accumulated weight of grains before water absorption in the selected soaking tank to obtain a water absorption ratio, multiplying the accumulated weight of grains before water absorption in the remaining soaking tanks after the designated soaking tank by the water absorption ratio to calculate the accumulated weight of water-absorbent grains in the remaining soaking tanks,
the remaining time required for discharging the water-absorbent grains of the remaining soaking tank is calculated by subtracting the accumulated time taken from the start of discharging the water-absorbent grains until the end of the discharge of the specified soaking tank from the set time for discharging all the water-absorbent grains to the next step,
and calculating the discharge speed of the water-absorbent grains by dividing the accumulated weight of the water-absorbent grains in the residual soaking tank by the residual required time, thereby changing the set value of the discharge speed.
CN202310329686.8A 2022-12-27 2023-03-30 Metering and discharging method of water-absorbing grains and metering and discharging mechanism of water-absorbing grains Active CN116331869B (en)

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JPH0222703A (en) * 1988-03-29 1990-01-25 K Tron Internatl Inc Weight supply method and system for material
JPH03155762A (en) * 1989-11-14 1991-07-03 Iseki Foods Eng Co Ltd Continuous steaming or boiling device of grain
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