JPH09313954A - Method and device for immersion by measure and temperature control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To instantly and accurately grasp a change in weight of grain in an immersion process by supporting the body of an immersion device as tare by a weighing device and controlling the weight of grain discharged from the immersion device on the basis of set value by both weight of grain after draining immersion water and weight of used grain. SOLUTION: Immersion water whose temperature is controlled by a temperature control device 10 is supplied till a set weight into a tank 1 into which grain treated in a washing process is introduced. At this time, coefficient of water absorption differs in the upper part and the lower part of the accumulation layer 14 of grain by difference of immersion temperature and water absorption of grain is made nonuniform. Therein, immersion water 15 is sucked from a pipeline of the upper part of the tank 1 by a pump and supplied from the lower part of a ventilation damper 4 to the accumulation layer 14 of grain. After immersion is finished, immersion water 15 is drained out. This drainage and dewatering are finished and thereafter weight of grain in the tank 1 is weighed by a load cell 3 and the coefficient of water absorption is calculated from the following formula, indicated and recorded. Coefficient of water absorption: (total weight of grain after immersion is divided by total weight of grain before immersion)×100-100.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for dipping grains, which is a raw material for the enzyme and brewing industries.

[0002]

BACKGROUND OF THE INVENTION Grains after soaking have different weights due to water absorption and are difficult to weigh. Therefore, even if the same raw material has different uses, dipping is performed using different dipping devices. Was there. In the immersion method that keeps the water absorption low,
In order to remove the heat of water absorption after draining, the grain was spread thinly and the heat was radiated. In the immersion conditions, only the immersion time is controlled, and regarding the immersion temperature, the well or tap water is used as it is, or after adjusting the temperature of the water, there is no temperature control during immersion at room temperature conditions in the factory. Was used for immersion.

[0003]

When grains of the same type and used for different purposes are treated by different dipping devices, the process becomes complicated and a large number of devices are required. In addition, a complicated work such as separately measuring a water absorption rate, which is an important index of the dipping process, with a moisture measuring device is required, and the measurement takes time. When the grain is immersed, heat of water absorption is generated, and the grain itself raises the temperature of the immersion water. Since the immersion temperature has a great influence on the water absorption rate of cereals together with the immersion time, it is necessary to control the temperature during the immersion in order to maintain the high-level immersion conditions. When water is absorbed for a short time in order to obtain a low water absorption rate among the water absorption methods for cereals, the temperature of the grains rises due to the heat of water absorption after drainage drainage, which may cause cracks in the grains and uneven absorption of water.

The object of the present invention is to treat cereals of the same type but for different uses with a single dipping device, to immediately grasp the weight change of the grains in the dipping process, and to keep the dipping temperature constant and to make them uniform. It is an object of the present invention to provide a dipping method and device by measuring and temperature control, which maintains a water absorption rate and maintains a grain temperature after drainage drainage to prevent deterioration of quality.

[0005]

According to the first aspect of the present invention, the dipping device is supported as a tare by a weighing device such as a load cell. Set the total weight of grains before soaking, the weight of each payout to the next process, the total weight of soaking water and grains. After the washed grain is put into the dipping device, the dipping water is externally supplied up to the set total weight of the dipping water and the grain. Each set weight to be delivered to the next step is calculated from the total weight of the grain after drainage draining and the total weight of the grain before soaking, and each set weight to be delivered to the next step. Since the weight change of the grain due to water absorption can be immediately measured by using the weighing device, it is possible to calculate the total grain weight after soaking corresponding to the total grain weight before soaking.

According to a second aspect of the present invention, the immersion water is sucked from the upper part or the lower part of the immersion device, the immersion water is discharged from the upper part or the lower part of the immersion device, and the immersion water is circulated by the inside of the immersion device and an external pipe. Establish a route. The immersion water whose temperature has risen due to the heat of absorption of water moves to the upper part by natural convection, and the immersion temperature becomes uneven. The immersion temperature is kept uniform by circulating the immersion water through the circulation path.

According to the third aspect of the present invention, the temperature of the immersion water is adjusted in the circulation path of the immersion water to keep the immersion temperature constant. By adjusting the temperature of the immersion water in the circulation path of the immersion water, it is possible to eliminate the unevenness of the immersion temperature and prevent the immersion temperature from changing with the passage of time during the immersion process.

According to the fourth aspect of the present invention, ventilation is performed on the grain deposition layer in the dipping device after drainage drainage in the dipping step. The heat of water absorption that occurs after drainage is removed by ventilation to remove the rise in grain temperature.

According to claims 5 to 11 of the present invention, the intended object is achieved by appropriately combining the contents of the claims 2 to 3 of the claims 1 to 4.

In the twelfth aspect of the present invention, the dipping device body is supported by the weighing device as a tare. A control device for storing and calculating measured values of the weighing device and a device for displaying and recording the stored and calculated data are provided.

In the thirteenth aspect of the present invention, the water absorption rate, which is important as an index indicating the evaluation of the dipping process, can be calculated and displayed by the equation (1). In the past, the water absorption rate of all cereals was indirectly estimated by measuring the water content of the immersed cereals, but this device can directly calculate the water absorption rate of the whole cereals used, which is an effective index for process control. .

[0012]

[Equation 1]

According to a fourteenth aspect of the present invention, a pipe is provided above the dipping device to supply and suck water. A pipe is provided below the dipping device to enable water supply and water suction. Further, the upper pipe and the lower pipe are connected via a pump, and the immersion water in the upper part of the dipping device is blown out to the lower part of the dipping device. Oil-free compressed air may be supplied to the lower pipe.

According to a fifteenth aspect of the present invention, a temperature sensor for measuring the immersion temperature is provided inside the immersion device. The position of the temperature sensor may be a position in contact with the grain or a pipe path from the dipping device to the temperature control device. Further, a temperature control device for the immersion water is provided in the circulation path outside the immersion device. The temperature of the immersion water is adjusted by providing a controller for controlling the temperature adjusting device based on the measured immersion temperature and the set immersion temperature.

In the sixteenth aspect of the present invention, a ventilation duct is provided in the lower portion of the dipping device. A damper is provided at the connection between the immersion device and the duct to prevent the immersion water from entering. A fan that can freely inhale and blow air is connected to the duct to ventilate the grain accumulation layer. Further, a sensor for measuring the temperature and a control device for controlling the operation of the fan from the measured temperature and the set temperature are provided in the grain deposition layer.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of an embodiment of a dipping device which employs the dipping method and device by measuring and temperature control according to the present invention.

The tank 1 of the dipping device is supported by a load cell 3 provided on a leg 2. Alternatively, a pedestal may be formed by the legs 2 and one or a plurality of load cells 3 may be provided on the pedestal to support the tank 1. The load cell 3 is the first control panel 6a
Connected to In the lower part of the tank 1, a ventilation damper 4 having a liquid contact part made of a perforated porous plate and a discharge damper 5 in the lowermost part are provided. Although not shown, the ventilation damper 4 and the discharge damper 5 can be horizontally opened and closed by a driving device.

A flexible joint 7a is connected between the ventilation damper 4 and the discharge damper 5 to connect an automatic valve 8a and an automatic valve 8b.
And is connected to a pump 9 for circulating immersion water. A drainage pipe is connected between the automatic valve 8a and the automatic valve 8b, and an automatic valve 8c is provided. Oil-free compressed air may be supplied from a drainage pipe. A temperature control device 10 is connected to the pump 9, and further connected to an automatic valve 8d connected to the upper part of the tank 1 via a flexible joint 7b. The flexible joint 7a connected between the ventilation damper 4 and the discharge damper 5 may be directly attached to the side surface of the lower portion of the tank 1 above the ventilation damper 4. In this case, it is necessary to prevent cereals from leaking by a perforated plate having water permeability on the side surface of the lower portion of the tank 1.

A temperature sensor 11 is provided in the middle of the tank 1 to measure the immersion temperature and the grain temperature after draining. When only the immersion temperature is measured, the installation position of the temperature sensor 11 may be changed before the immersion water enters the temperature control device 10. The temperature sensor 11 is connected to the second control panel 6b. The first control board 6a and the second control board 6b may be configured as surface control boards.

Between the ventilation damper 4 and the discharge damper 5, an automatic damper 12 is provided by connecting to the flexible joint 7c.
It is connected to a fan 13 that can rotate forward and backward. The fan 13 allows ventilation in the grain deposition layer 14 of the tank 1.

Grains after the washing process are put into the tank 1, and the immersion water is supplied to a set weight. The immersion water may be supplied from the automatic valve 8f through the automatic valve 8d after the temperature of the immersion water is adjusted by the temperature control device 10, but another route may be used. The temperature of the immersion water rises due to the heat of water absorption generated from the grains during the immersion process. When left unattended, the convection temperature of the upper part of the tank 1 rises due to natural convection, and the water absorption rate is different between the upper part and the lower part of the grain sediment layer 14 due to the difference in the immersion temperature, so that the water absorption of the grains becomes uneven.

Therefore, the immersion water 15 is sucked from the upper pipe of the tank 1 through the automatic valve 8d by the pump 9, and the immersion water 15 is supplied to the grain accumulation layer 14 from below the ventilation damper 4 through the automatic valves 8b and 8a. Supply. At this time, the immersion water may be circulated continuously, but the temperature sensor 11
The circulation may be started when the temperature is equal to or higher than a certain temperature by utilizing, and the ON / OFF of the circulation may be repeated by a timer. Further, when the immersion temperature is kept constant, the immersion temperature is controlled by the temperature sensor 11 to a set value while the immersion water is circulated by the temperature controller 10. The immersion water may be circulated from below to above the tank 1 or from above to below, but the circulation direction from below to above the tank 1 which has the effect of preventing the consolidation of grains is preferable. As a means for preventing the consolidation of grains, compressed air may be blown from the ventilation damper 4 through the automatic valves 8a and 8c.

After the completion of the immersion, the water is drained through the moving valves 8a and 8c. Alternatively, the pump 9 may suck and discharge water from the automatic valve 8f. In this case, the drainage time is shortened and the drainage of the grain is improved due to the suction effect of the pump. After drainage drainage is completed, the weight of cereals in the tank 1 is measured by the load cell 3, and the water absorption rate is calculated by the above-mentioned formula 1 and displayed and recorded. The total weight of the grain before immersion is 1000 kg, and 500 kg for the purpose of (a)
When used for different purposes such as 300 kg for (b) and 200 kg for (c), if the total weight of grains after soaking is 1300 kg, the weight classification of grains after soaking is several 2
become that way.

[0024]

[Equation 2]

As described above, 650 kg for the purpose of (a),
By discharging while measuring with the load cell 3 of 390 kg for the use of (b) and 260 kg for the use of (c), it is possible to accurately measure and discharge even if the weight of the cereal changes due to immersion. It is also possible to measure the weight change during the metering and discharging, and display the alarm when the weight change becomes slow or stopped before the end of the discharging to notify the grain clogging phenomenon.

As a special dipping method, in order to keep the water absorption of grains low, it is necessary to lower the temperature of the dipping water and shorten the dipping time. When the immersion time is short, the immersion water does not penetrate to the center of the grain particles, so that the immersion water continues to permeate even after draining, and heat of water absorption is generated. Therefore, the fan 13 ventilates the grain deposition layer 14 to remove the water absorption heat. The direction of ventilation is the grain sediment layer 14
Either from top to bottom or bottom to top. The air used for ventilation may be adjusted with a temperature / humidity adjusting device before use. Ventilation may be continuously performed with a constant air volume, but the air volume and ON / OFF may be controlled using the temperature sensor 11 so as to keep the grain temperature constant. or,
By venting the grain sediment layer 14 from above to below, it is also possible to suck and remove the free water remaining between the grain particles.

[0027]

INDUSTRIAL APPLICABILITY The dipping method and apparatus by metering and temperature control according to the present invention can supply an appropriate amount of dipping water and immediately know the water absorption rate of cereals. In addition, since the grains whose weight has changed due to immersion can be metered and discharged according to the application, even if the same type of cereal has different applications, it is possible to soak with a single immersion device without using an immersion device for each application. Becomes The rise in soaking temperature due to the heat of water absorption of grains is made uniform by circulation of the soaking water and becomes constant by adjusting the temperature.Therefore, the water absorption rate of grains can be made uniform and the water absorption rate is always constant regardless of changes in climate and room temperature. Can be achieved. In particular, the heat generation of the grain after draining, which is a problem when suppressing the water absorption rate of the grain to a low level, can prevent the rise in the grain temperature by performing temperature adjustment by ventilation, so the operation of spreading the grain thinly and allowing it to cool is possible. It becomes unnecessary, and it is possible to process high quality soaked grains only with the soaker.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an embodiment of a dipping device that employs the dipping method and device by measuring and temperature control according to the present invention.

[Explanation of symbols]

 1 Tank 2 legs 3 Load cell 4 Ventilation damper 5 Discharge damper 6a 1st control panel 6b 2nd control panel 7a to 7c Flexible joint 8a to 8c Automatic valve 9 Pump 10 Temperature controller 11 Temperature sensor 12 Automatic damper 13 Fan 14 Grain deposit layer 15 Immersion water

Claims (16)

[Claims] 1. A weighing method in which the body of the dipping device is supported as a tare by a weighing device, and the discharge weight of the grain from the dipping device is controlled based on a set value based on the weight of the grain after the immersion water is drained and the weight of the grain used. And a dipping method by temperature control. 2. In the grain dipping step, the water absorption heat of the grain generated by the dipping is dispersed and made uniform by circulating the dipping water in the dipping device, and the dipping method is controlled by weighing and controlling to make the dipping temperature distribution uniform. . 3. The dipping method by metering and temperature control according to claim 2, wherein the temperature is adjusted during circulation of the dipping water, and the dipping temperature is controlled to a set dipping temperature. 4. A dipping method according to a weighing and temperature control method, wherein, in the grain dipping step, after the drainage and drainage are completed, the grain sediment layer in the dipping device is ventilated to control the grain temperature to a set grain temperature. 5. The body of the dipping device is supported by a weighing device as a tare, and the weight of the grains discharged from the dipping water and the weight of the grains used controls the discharge weight of the grains from the dipping device based on a set value. In the grain dipping process, the water absorption heat of the grain generated by dipping is dispersed and uniformized by circulating the dipping water in the dipping device, and the dipping method is controlled by measuring and temperature to make the dipping temperature distribution uniform. 6. The dipping device main body is supported by a weighing device as a tare, and the discharge weight of the grains from the dipping device is controlled based on a set value by the weight of the grains after draining the immersion water and the weight of the grains used. A metering and temperature control method in which the temperature is adjusted during circulation of the immersion water and the immersion temperature is controlled to the set immersion temperature. 7. The dipping device main body is supported as a tare by a weighing device, and the discharged weight of the grains from the dipping device is controlled based on a set value by the weight of the grains after draining the immersion water and the weight of the grains used, In the grain dipping step, a dipping method by weighing and temperature control in which the grain sediment layer in the dipping device is ventilated after the drainage drainage is finished to control the grain temperature to a set grain temperature. 8. In the grain dipping step, the water absorption heat of the grain generated by dipping is dispersed and made uniform by circulating the dipping water in the dipping device to make the dipping temperature distribution uniform and the grain dipping step. In the method of (1), after the drainage is drained, ventilation is performed to the grain sediment layer in the dipping device to control the temperature of the grain at the set grain temperature, and the dipping method by temperature control. 9. The temperature is adjusted during circulation of the immersion water to control the immersion temperature to a set immersion temperature, and in the grain immersion step, ventilation is provided to the grain accumulation layer in the immersion device after drainage drainage is completed. A dipping method by measuring and controlling the temperature of a grain by controlling the temperature of the grain to a set grain temperature. 10. The weight of the dipping device is supported by a weighing device as a tare, and the weight of the grains discharged from the dipping water and the weight of the grains used controls the discharge weight of the grains from the dipping device based on a set value. In the grain dipping step, the water absorption heat of the grain generated by dipping is dispersed and uniformized by circulating the dipping water in the dipping device, and the distribution of the dipping temperature is made uniform, and in the grain dipping step, after drainage draining is completed. , A dipping method by metering and temperature control in which the grain sediment layer in the dipping device is ventilated and the grain temperature is controlled to a set grain temperature. 11. The dipping device body is supported as a tare by a weighing device, and the weight of the grains discharged from the dipping water and the weight of the grains used controls the discharge weight of the grains from the dipping device based on a set value. Temperature is controlled during circulation of the immersion water, the immersion temperature is controlled to the set immersion temperature, and in the grain dipping process, after drainage drainage is complete, ventilation is performed on the grain sediment layer in the dipping device to determine the grain temperature. A dipping method by weighing and temperature control for controlling the grain temperature to a set grain temperature and temperature control. 12. A weighing device that supports the dipping device body as a tare, and a control device that calculates the weight of the grains discharged from the dipping device and the discharge weight of the grains from the dipping device based on the set value based on the used weight of the grains. Immersion equipment with metering and temperature control provided. 13. The dipping device by weighing and temperature control according to claim 12, further comprising a control device and a display device for calculating a water absorption rate based on the weight of the grain after draining the dipping water and the weight of the grain used. 14. A pipe is provided at an upper part and a lower part of the dipping device,
A dipping device by metering and temperature control, which is capable of supplying and sucking water from each pipe, sucking the dipping water from the upper pipe, and blowing the dipping water into the dipping device from the lower pipe. 15. A temperature sensor for measuring the immersion temperature and a temperature controller for adjusting the temperature of the circulating immersion water are provided inside the immersion device, and a controller for controlling the temperature controller from the measured immersion temperature and the set immersion temperature is provided. 14. The dipping device according to claim 13, wherein the dipping device is controlled by temperature and temperature. 16. A ventilation device is provided in the lower part of the dipping device, a fan for sucking air into the duct and connecting a blowable fan is connected, and a sensor for measuring the temperature of the grain accumulation layer and a control device for controlling the operation of the fan. Immersion device by measuring and temperature control.