JPH07117338B2 - Sample grain dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a sample grain drying apparatus for paddy or wheat in a rice center (common drying and preparation facility) or the like.

[Conventional technology]

In recent rice centers, in order to streamline the work of bringing in harvested rice and wheat, which is temporarily concentrated, the participating farms are given a farmer's card with a farmer's code, and from the load receiving hopper to the roughing machine and automatic moisture meter. , Mechanically automating the work to the weighing machine and the receiving tank (by product type, water content, etc.),
The control, storage of various data obtained in the middle of the flow, variety and farm card data, processing, printing on slips, etc. are centrally processed by a computer.

This will improve the efficiency of clerical work and work, while for imported paddy rice, the final moisture, for example,
Converted to the weight of sized brown rice around 14.5%, the share of cargo receipts and receipts of each farm is calculated.

In order to calculate the ownership of each farmer, the operator collects a sample from the unhulled rice brought in and dries it to a specified moisture content using a sample hull dryer (test dryer). That is, as shown in Japanese Utility Model Publication No. 59-30393 (see FIG. 7), a bottom wall portion is formed of a breathable material in a drying machine frame 31 provided with a hot air generator 32 and an exhaust fan 33. The drying box 34 is inserted, and the sample paddy in the drying box 34 is dried by hot air passing from the upper opening of the drying box 34 to the bottom wall.

[Problems to be solved by the invention]

By the way, in the sample paddy dryer, the operator must check the water content of the sample paddy without agitating and mixing in order to correct the difference in the water content above and below the sample paddy in each drying box 34. In addition, the dried sample paddy should be taken out separately so as not to overdry, and the dry box 34a containing no sample should be placed sideways and inserted into the drying machine frame 31, and the dry air should be dried directly. Although it is prevented from blowing through the breathable material portion of the bottom wall of the box 34a, the amount of hot air passing through each sample pad changes each time the number of dry boxes placed sideways changes, so that the hot air generator 32 Set temperature or blower
The air volume of 33 must be adjusted. In addition, the drying of the sample paddy had a considerable effect on the calculation of equity, and required careful work.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an accurate and quick sample grain drying device that requires no manual labor.

[Means for Solving the Problems] In order to solve the above problems, the first invention includes: a. An endless chain in which a large number of drying boxes, each of which has a breathable material at the bottom and a lid that is openably and closably attached to the top, is hung at fixed intervals, is rotatably hung in the machine frame.

B. An electric motor is provided for intermittently rotating the endless chain according to the mounting pitch of the drying box.

C. During the moving process of the drying box, a drying section consisting of a heat generating section and a fan, a sample feeding device for the drying box, a sample discharging apparatus for discharging the dried sample, and a sample in the drying box are mixed. A dry box rotating device for
Was set up.

Further, the second invention is: d. An endless chain in which a large number of drying boxes, each of which has a breathable material at the bottom and a lid that is openably and closably attached to the top, is hung at fixed intervals, is rotatably hung in the machine frame.

E. An electric motor is provided for intermittently rotating the endless chain according to the mounting pitch of the drying box.

F. During the moving process of the drying box, a drying section consisting of a heat generating section and a fan, a sample feeding device for the drying box, a sample discharging apparatus for discharging the dried sample, and a sample in the drying box are mixed. A drying box rotating device for measuring the moisture content of the sample in the drying box,
To arrange.

G. A control device connected to the electric motor, the drying unit, the sample supply device, the sample discharge device, the drying box rotating device, and the moisture measuring device was provided.

I took the technical means.

[Work]

The drying box loaded with the sample by the sample supply device moves to the drying section along with the endless chain that rotates intermittently, and after being subjected to the drying action by hot air, it is dried until the next drying section. It moves without being subjected to the action, is subjected to so-called tempering, and is subjected to the drying action again in the drying section, which is an intermittent drying action. Then, the sample is agitated and mixed by the drying box rotating device provided during the moving process of the drying box to make the sample uniform, and then the drying operation is performed again to perform the drying operation.

Example of Invention

 A preferred embodiment of the present invention will be described with reference to the drawings.

The sample grain drying device 1 is formed by a machine frame 2 which is almost sealed, and a pair of endless chains 3 are vertically rotatably provided inside the machine frame 2. That is, a pair of chain gears 4 and 5 are rotatably provided on the upper and lower sides of the machine frame 2, and the pair of endless chains 3 is bridged over the pair of chain gears 4 and 5. The rotary shaft 6 of the chain gear 4 is directly connected to an electric motor 7 having a servo mechanism, so that the endless chain 3 rotates using the chain gear 4 as a drive gear.

A drying box 9 is suspended between the pair of endless chains 3 by a pair of pins 8 at regular intervals. The dry box 9 has an opening 9a at the top and a lid 9b made of a breathable material that is normally closed, and a bottom surface 9c is made of a breathable material such as a wire mesh. Further, 9b may be made of a non-breathable material, and small holes through which the sample does not pass may be provided at the upper part of the four circumferential wall surfaces of the drying box 9. Further, a drying unit 10 for blasting the sample in the drying box 9 with hot air is provided. That is, the drying unit 10
The hot air of the air blower 12 is composed of a heat generating portion 11 provided on the side of the moving dry box 9 and provided with a heater and the like, and a ventilator 12 provided to ventilate the blower port 13 on the lower side of the dry box 9. The discharge port 14 is fixed to the machine frame, and the dry box 9 is configured to receive a biasing force at a position where the blower port 13 of the dry box 9 faces the hot air discharge port 14.

On the outer surface of the upper part of the machine frame 2, an air exhauster 15 is provided for discharging the air after drying and used, which is discharged from the upper part of the drying box 9, to the outside of the machine. Further, at an arbitrary position of the machine frame 2, a sample supply hopper 17 constituting a sample supply device 16 and a sample discharge device 18 provided with a sample discharge means (not shown) are provided.

At an arbitrary point in the moving process of the drying box 9, the drying box 9 is rotated to promote stirring and mixing by reversing the sample.
And a moisture measuring device that measures the moisture of the sample
20 are provided. The moisture measuring device 20 is located above the drying box 9, and the lid 9b of the drying box 9 is opened so that the detecting section 20a can come into contact with the sample in the drying box 9, and the detecting section 20a can be lowered. To be done. Further, a control box 21 as a control device is provided at an arbitrary position in the machine casing 2. Control box
21 is a CPU (central processing unit), ROM, R as shown in FIG.
The control box 21 is composed of an AM storage device, an interface, and the like. Data from the moisture measuring device 20 and the terminal keyboard 22 is input to the control box 21, and a drying unit is also provided.
10, dry box rotation device 19, electric motor drive circuit 23, printer 24
Are electrically connected to each other so as to output a signal.

Next, the operation of the above embodiment will be described. In this embodiment, the number of drying boxes 9 is 60, six drying sections are continuously provided, and the drying boxes 9 are moved every 6 minutes depending on the mounting pitch.

Now, as a sample, for example, 1 kg from the paddy rice glutinous rice brought in by a certain farmer K is put into the drying box 9A from the supply hopper 17. Prior to this, the rice receiving weight of the farmer's rice and the moisture content were measured by the so-called automatic cargo receiving device, and data was input to the host computer along with the farmer code for the farm, and at the same time, the weight of the rice received, the moisture content and the variety were memorized. The voucher that was created is ejected. Then, the data such as the received weight, the moisture content, and the variety are input from the terminal 22 and stored in the storage device of the control box 21 for each farm code.

The dry box 9A below the supply hopper 17 is the dry box in the next movement process.
It moves to the position of 9B and receives the drying action. Then, after 6 minutes, the drying operation is stopped, and then the drying box 9C is moved to the position of the drying box 9C, and the drying section 10 is reached again. In the drying section 10, a ventilator is provided at the blower opening 13 that opens to the lower side of the drying box 9.
The 12 hot air outlets 14 are crimped, and a limit switch (not shown) or other appropriate sensor sends a signal indicating the completion of setting (a sample presence / absence detection sensor may be provided) to the control box 21.
Is input to the heat generating portion 11 by the output signal from the control box 21 side, the air blower 12 is activated and the sample rice in the drying box 9 is exposed to hot air of about 60 ° C., for example.

In this way, when the drying unit 10 finishes drying for 6 minutes, the electric motor 7 operates by a predetermined number of revolutions (or an angle) according to a command from the control box 21, and each of the drying boxes 9 is moved. The sample paddy that has passed through the drying unit 10 is not subjected to the drying action for about 60 minutes until it is next subjected to the drying action, and during this period, the equilibrium (tempering) of water content between the sample paddy grains themselves and each particle progresses. , To prepare for the next drying action. In this example, the drying unit
Although 10 are continuously arranged at one pitch interval of the drying box 9 in the moving process of the drying box 9, they may be intermittently provided, for example, in any pitch unit.

Further, when the moisture measuring device 20 is provided, with respect to the dry box 9 reaching below the moisture measuring device 20, the detection unit 20a descends to open the lid 9b of the dry box 9 to open the sample paddy in the dry box 9. The water content is measured by capacitance or electric resistance method. In the control box 21, the dry box 9A is used as the reference dry box, and all the dry boxes 9A are set by appropriate sensors.
Since the position of each ... is detected, this moisture content value is sent to the control box 21, and the data of the sample paddy for each drying box 9 is updated, and the set finished moisture content,
For example, after reaching 14.5%, subsequent hot air drying is stopped for the sample paddy. The grain temperature of the dried sample paddy drops, which allows the test paddy work in the next step to be carried out smoothly (sometimes only ventilation is performed). Then, when the dry box 9D containing the sample paddy that has reached the finished water content reaches above the sample discharge device 18, the output signal from the control box 21 causes, for example, the solenoid to demagnetize and the push rod to expand. , The bottom of the drying box 9D is lifted and opened
9b acts so as to open, and the dry sample paddy in the drying box 9 is discharged to the outside of the machine and conveyed to a test paddy screening and selecting machine (not shown). Further, the dried hot air is removed to the outside by the air exhaust unit 15.

Next, referring to FIG. 6, another embodiment of the rotating device for the drying box 9 will be described.
The components having the same function will be described with the reference numerals of the above-mentioned embodiments. The endless chain 3 and the drying box 9 with a plurality of fixing brackets 25
Fix with. With this structure, the drying box 9 changes its direction by 180 ° between the chain gear 4 at the upper end and the chain gear 5 at the lower end. In short, since it changes from upward to downward and downward to upward, the drying box rotating device 19 is formed here.
In this case, it is possible to stir and mix the sample with a simple structure without requiring a separate drying box rotating device.

In addition, in the above embodiment, the endless chain is hung vertically in the machine frame, but may be provided so as to overlap in the horizontal direction in the machine frame (horizontal wave with a short wavelength), or a horizontally long shape. In some cases, an endless chain composed of a plurality of rows of drying boxes may be hung in the same machine frame. Further, in view of workability, after all the samples are put in the drying box 9 ... In advance (the endless chain 3 is rotated at high speed), the sample grain drying device 1 is operated for an arbitrary time, for example, 8 hours, The sample may be discharged almost at the same time and the test hulling work of the next process may be continuously performed. In this case as well, the drying action in each drying unit 10 is not applied to the dried sample. The number of the dried dry box may be displayed on a display (not shown) of the dried dry box.

〔The invention's effect〕

As described above, according to the sample grain drying apparatus of the present invention, since each drying box is dried, the sample is not loaded in all the drying boxes, and the sample grains having different water contents are always constant. It is possible to apply the drying action of (1) to the drying box unit, and it is possible to reduce the unevenness of water content in the upper and lower portions caused by being left to stand in the drying box and being dried by inverting and mixing the sample.

Further, since the drying unit, the sample supply device, the sample discharge device and the moisture measuring device are in fixed positions and the endless chain suspending the drying box is rotated, there is an effect that the transport device is not complicated.

[Brief description of drawings]

1 is a front sectional view of an embodiment of the present invention, FIGS. 2 and 3 are partially enlarged views of FIG. 1, FIG. 4 is an enlarged perspective view showing a part of a drying section, and FIG. The control block diagram, FIG. 6 is another embodiment of the drying box rotating device, and FIG. 7 is a partially cutaway front view showing a conventional example. 1 ... Sample grain drying device, 2 ... machine frame, 3 ... endless chain,
4,5 …… Chain gear, 6 …… Rotary shaft, 7 …… Motor, 8 ……
Pin, 9 ... Drying box, 9a ... Opening, 9b ... Lid, 9c ...
Bottom, 10 …… drying part, 11 …… heating part, 12 …… ventilator, 13
…… Blower, 14 …… Hot air outlet, 15 …… Blower, 16 ……
Sample supply device, 17 …… Sample supply hopper, 18 …… Sample discharge device, 19 …… Dry box rotation device, 20 …… Moisture measurement device,
20a …… Moisture detector, 21 …… Control box, 22 …… Terminal, 23 …… Motor drive circuit, 24 …… Printer, 25 ……
Fixing bracket, 31 …… Drying machine frame, 32 …… Hot air generator, 33…
… Blower, 34 …… drying box.

Claims (5)

[Claims] 1. An endless chain in which a large number of drying boxes, each of which has a breathable material at the bottom and a lid which is openably and closably mounted on the top, are hung at fixed intervals, are rotatably hung in a machine frame. An electric motor for intermittently rotating this endless chain according to the mounting pitch of the drying box is provided, and during the moving process of the drying box, a drying section including a heat generating section and a fan, and a sample supply to the drying box. A sample grain drying device comprising: a device, a sample discharging device for discharging a dried sample, and a drying box rotating device for mixing the samples in the drying box. 2. The sample grain drying device according to claim 1, wherein the drying section is configured to independently ventilate the plurality of drying boxes. 3. A controller for connecting the electric motor, the drying section, the sample supply device, and the sample discharge device to the control device, and a storage circuit for storing the moisture content of the sample before drying is communicated to the control device. The sample grain dryer according to claim (1) or (2). 4. An endless chain in which a plurality of drying boxes, each of which has a breathable material at the bottom and a lid which is openably and closably mounted on the top, is hung at fixed intervals, is rotatably hung in a machine frame, An electric motor for intermittently rotating this endless chain according to the mounting pitch of the drying box is provided, and during the moving process of the drying box, a drying section including a heat generating section and a fan, and a sample supply to the drying box. An apparatus, a sample discharging device for discharging the dried sample, a drying box rotating device for mixing the samples in the drying box, and a moisture measuring device for measuring the water content of the sample in the drying box are arranged. A sample grain drying device, which is provided with a controller connected to the electric motor, the drying unit, the sample supply device, the sample discharge device, the drying box rotating device, and the moisture measuring device. 5. The water content measuring device is formed so as to stop the operation of the drying unit for the sample after measuring the sample water in an arbitrary drying box below an arbitrary set water content value. Range Sample drying apparatus according to item (4).