JPH0760111B2 - Grain processing equipment weighing equipment - Google Patents

Description

The present invention relates to a hopper for receiving grain, a batch-type weighing machine for weighing the weight of the fed grain, and a grain from the hopper to the weighing machine. The present invention relates to a weighing device of a grain processing facility provided with a feeding means for supplying.

[Conventional technology]

In this type of grain processing equipment, the amount of grain received must be measured for each recipient. Since a batch-type weighing machine is used, unless the discharge of the grains in the weighing machine is completed, the grain cannot be added to the next recipient for weighing.

By the way, conventionally, for example, a plurality of tanks for temporarily storing the grains received from the hopper are provided between the hopper and the weighing machine, and the next grain is temporarily stored while weighing the previously received grains. It has also been attempted to improve efficiency by enabling acceptance and shortening the time until the acceptance of the next grain can be started after the end of weighing.

[Problems to be Solved by the Invention]

However, because of the structure of the batch-type weighing machine, it is not possible to start feeding the next grain to be weighed until the discharge of the grain in the machine is completed. It was not enough to improve the efficiency of the whole receiving process until completion.

The present invention has been made in view of the above circumstances, and an object thereof is to improve the efficiency of the entire cargo receiving process.

[Means for Solving the Problems]

The weighing device of a grain processing facility according to the present invention is provided with a hopper for receiving grain, a batch type weighing machine for weighing the weight of the fed grain, and a conveying means for feeding grain from the hopper to the weighing machine. The characteristic configuration is as follows.

A plurality of the weighing machines are provided, and the transporting means,
The weighing machine is provided with a flow path switching unit that switches which of the plurality of weighing machines is supplied with grain, and when the rate of increase of the weighing value becomes less than or equal to a set value in the weighing machine currently being weighed, The control means for activating the flow path switching unit based on the weighing information of the weighing machine is provided so as to switch the weighing machine to which is supplied from the weighing machine currently being weighed to another weighing machine.

The operation and effect of this characteristic configuration are as follows.

[Work]

That is, by providing a plurality of weighing machines and switching the grain supply to them, the grain receiving and weighing is performed. In other words, when one weighing machine finishes the weighing process, in other words, when the grain supply to one weighing machine is finished, even if the discharge of the weighed grain from the weighing machine is not completed, The grain supply can be started to the weighing machine.

Then, in the weighing machine currently being weighed, when the rate of increase of the weighing value becomes less than or equal to the set value, the weighing machine that supplies the grain is switched from the currently weighing weighing machine to another weighing machine. When the amount of grain supplied to the weighing machine per unit time is small and the supply is almost stopped, the rate of increase of the measured value will be below the set value relatively quickly, and the grain will be supplied to the weighing machine immediately. The situation where there is no grain supply compared to the case where the supply is stopped and the grain can be received by another weighing machine so that the grain supply to the weighing machine cannot be stopped unless the specified weight is reached. The waiting time of the weighing machine at Even when the amount of grain supplied to the weighing machine per unit time is large, the ratio of the amount of grain supplied to the weighing machine to the total weight gradually decreases, so If the weighing machine is set in advance to a predetermined receiving capacity for the maximum value of the quantity, and the set value of the increasing rate of the weighing value is determined so that the grain supply can be stopped before the limit of the receiving capacity is reached. The supply can be stopped at an appropriate supply amount, and the supply to other weighing machines can be automatically switched.

〔The invention's effect〕

Therefore, the time required from grain acceptance to completion of weighing can be shortened as compared with the conventional method, and the efficiency of the entire cargo receiving process can be improved, and the weighing weight can be changed compared to the case where the weighing machine is not switched until the predetermined supply amount is reached. In the present invention in which the weighing machine is switched when the increase rate of the weighing machine becomes less than the set value, it is possible to automatically switch the weighing machine even when the supply amount to the weighing machine is small. Can be further improved.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 3 to 6, the grain processing equipment includes a plurality of tanks (1) for storing grains and a square building (2) in plan view in which machinery for grain processing is stored. Consists of
Doorways (3A) and (3B) are formed on both sides of the building (2), and a cargo receiving section (3) is provided near one of the doorways (3A) and (3B).

The building (2) is configured with the tank (1) as a pillar. That is, so that a plurality of the tanks (1) form the outer wall of the building (2) by them,
They are arranged side by side in two rows with a space between them. Then, as also shown in FIG. 7, the shed assembly (5A) is assembled and fixed on the upper part of the tank (1), and the roofing material (5B) is placed and fixed on the shed assembly (5A). ,
A roof (5) is formed to cover the interior space of the tank (1) and the building (2). Further, a frame body (4) assembled with aggregates is erected on the ground, and the lower part of the tank (1) is supported by the frame body (4). Therefore, the inner space of the building (2) is used as an installation space (6) for machinery for grain processing, offices, and the like.

Each of the tanks (1) has a lower end portion formed in a conical shape that tapers downward in a side view, and is supported by the frame body (4) in a state where the lower end portion is above the ground. . Then, the grain is input from above and the stored grain is discharged from the lower end portion.

By the way, the one of the plurality of tanks (1) located at a position adjacent to the cargo receiving section (3) is used as the cargo receiving tank (1A) and is located at the innermost position of the building (2). Each is used as a tempering tank (1B), and each tank (1) located between the cargo receiving tank (1A) and the tempering tank (1B)
Are used as silos (ICs) for storing dried grains, the installation positions are determined according to their purpose of use.

In addition, the cargo receiving part (3) is the building (2).
Since it is installed close to the doorway (3A) of the cargo receiving tank (1A), the cargo receiving tank (1A) is closest to this cargo receiving portion (3).
By arranging, the cargo receiving work can be performed efficiently.

Moreover, since the continuous-flow-type dryer (C3) for drying grain needs to discharge dust and the like generated by the flow of hot air and grain to the outside of the building, it is farthest from the cargo receiving section (3). It will be installed adjacent to the inner wall surface of the building (2) which is the location.

Then, since the grain is circulated between the dryer (C3) and the tempering tank (1B) to be dried, the dryer (C3) and the tempering tank (1B)
However, the efficiency of the drying process will be improved if they are arranged close to each other. Therefore, the tank (1) located at the innermost side of the building (2) is used as a tempering tank (1B).

However, the interior space of the cargo receiving tank (1A) and the tempering tank (1B) is divided into four sub tanks (7) along the circumferential direction in a plan view. Each of the sub tanks (7) can be used separately.

Taking the cargo receiving tank (1A) as an example, as shown in FIGS. 7 and 8, each of the four sub-tanks (7) has an upper receiving port (8) and a lower discharging port. (10) is provided, and an electromagnetically operated switching valve (9) for switching to which of the upper receiving ports (8) grain is supplied
Is provided in the upper part of the internal space, and in the lower part,
An electromagnetically operated shutter (11) is provided for switching from which of the lower discharge ports (10) the grain is discharged. In the figure, (12) is a ventilation duct for blowing air into each of the sub tanks (7). However, the ventilation duct (12) is provided only in the cargo receiving tank (1A), and is not attached to the tempering tank (1B). In addition, (A10) is a lifting line using a bucket type conveyor for lifting the received grain above the building, (B1) is the grain discharged from the above lifting line above the receiving tank (1A). A grain feeding line using a screw conveyor for lateral feeding, (D6) is a first conveying line forming a part of a grain conveying line (D) using a belt type flow conveyor.

Explaining the machinery for grain processing, as shown in FIG. 1, three grain receiving hoppers (A1) for grain receiving, which are attached to the load receiving section (3), are received from the hoppers (A1). A tank (A4) for temporarily storing grain, a coarse sorter (A6) for removing foreign matter such as straw waste from the grain discharged from the tank (A4), and a grain discharged from the coarse sorter (A6) Batch-type weighing machine (A8) for receiving cargo and a switching valve as a flow path switching unit for switching to which weighing machine (A8) the grain is supplied from the roughing machine (A6) (A7) and receiving equipment, drying equipment such as the dryer (C3), selection equipment (E4), paddy hull adjusting device (F1), stone removing machine (F2), shipping weighing machine ( F15), a shipping facility consisting of multiple brown rice tanks (F11) for shipping. Then, as described above, these machines are three-dimensionally (multi-layered) arranged by utilizing the internal space (6) of the building (2) surrounded by the plurality of tanks (1). There is.

Next, a transport path for transporting grain among the cargo receiving tank (1A), the tempering tank (1B), and the silo (1C) will be described.

The undried grain received from the cargo receiving hopper (A1) is laterally conveyed by one cargo receiving line (A2), and then lifted above the building (2) by the first lifting line (A3). Are stored in the temporary storage tank (A4), and then foreign substances such as straw waste mixed in by the roughing machine (A6) are removed, and then the two weighing machines (A8) for receiving cargo. ). That is, the cargo receiving line (A2) and the first
The transportation means is constituted by the lifting line (A3).

The flow rate of the grain passing through the coarse sorter (A6) gradually increases with the passage of time from the time when the received grain is supplied to the coarse sorter (A6), and is supplied while the grain supply is continued. The flow rate becomes constant according to the amount, and after the supply is stopped, it gradually decreases to zero with the passage of time.

However, since the coarse sorter (A6) is designed to process the grains supplied earlier by the grains supplied later, the flow rate after the supply is stopped is
The smaller the residual amount, the smaller the residual amount, and it takes a long time until the flow rate becomes completely zero.

As a result, the grain to the weighing machine (A8) is reduced from the time when the discharge of the grain from the temporary storage tank (A4) is completed to the time when the processing in the rough sorter (A6) is completed. Will continue to be supplied. By the way, the time required to completely discharge the grain remaining in the roughing machine (A6) is from the receiving hopper (A1) to the tank (A4).
It takes about as long as the time it takes to transport grain.

Therefore, if the next receiving process is not started until the grain received earlier has completely passed through the roughing machine (A6), the receiving process will result in a low operating rate of substantially about 50%. There is a disadvantage.

Therefore, when the amount of grain to be passed through the roughing machine (A6) becomes small, that is, when the increase in grain supply to the weighing machine (A8) becomes small, the weighing machine (A8 )
Is forcibly switched from the weighing machine currently being weighed to another weighing machine, and the next load receiving process is started.

By the way, if the switching valve (A7) is switched while the grain supply to the weighing machine (A8) is not completely completed, the amount of residual amount of the grain previously put in remains in the coarse selecting machine (A6). , But the grain will be added to the grain to be received next and weighed, but part of the grain to be received next will remain in the coarse sorter (A6) due to the suspension of supply, resulting in There will be no measurement error. However, at the start of operation of the equipment, since there is no grain remaining in the rough sorter (A6), the grain received first will be weighed by the remaining amount of the rough sorter (A6). Since the residual amount can be obtained in advance and the measured value can be corrected, there is no problem.

Therefore, in this embodiment, the process of switching the switching valve (A7) is automatically performed based on the weighing information of the weighing machine (A8). In FIG. 1, (A9) is a control device which constitutes a control means for automatically switching the switching valve (A7).

In addition, as shown in FIG. 2, when the grain discharge from the coarse sorter (A6) starts to decrease as the grain supply is stopped, the measured value (W Similarly, the rate of increase (R) of) will start to decrease. Therefore, this measured value (W) is sampled every set time (t),
As shown in the following formula, the increase rate (R) is obtained from the difference between the measured values (W (0)) and (W (-1)) before and after the sampling, and the value is calculated from the set value (R ₁ ). The time when it becomes small is judged to be the time when the grain input to the weighing machine (A8) is completed, the weighing process is started, and the weighing machine (A8) that supplies grain is switched to another weighing machine. -ing

The weighed grain discharged from the cargo weighing machine (A8) is re-loaded above the building by the second lifting line (A10), and the cargo receiving tank is transferred via the cargo receiving transfer line (B1). It will be stored in (1A).

The grain stored in the cargo receiving tank (1A) is discharged from the lower end portion thereof, and is transferred by the first transfer line (D6) and the second transfer line (D7) that follow the first transfer line (D6) that forms the transfer line (D). It is designed to pass under the silo (1C) and be transported to a position on the front side of the tempering tank (1B), and then to be transported above the building by a third transport line (D12).

The grain lifted up above the building by the third lifting line (D12) can be switched by the switching valve (D13) between sending to the shipping stage and drying process.

When it is sent to the drying step, it is lifted up by the fourth lifting line (C7) used for drying and stored in the tempering tank (1B). However,
The grain lifted up by the fourth lifting line (C7) can be switched by the switching valve (C8) between the tempering tank (1B) and the silo (1C). It is like this.

The grain stored in the tempering tank (1B) is transferred to the dryer (16) by a drying transfer line (C) operably provided independently of the grain transfer line (D).
It will be circulated between and.

Explaining the drying transfer line (C), the third transfer line (C11) for laterally feeding the grain discharged from the lower end of the tempering tank (1B) and the end of the third transfer line (C11). Fifth lifting line (C1) for lifting grains that have been fed to the upper part above the dryer (C3)
And a switching valve (C2) for switching whether the grain fed by the fifth feeding line (C1) is fed into the dryer (C3) or conveyed to the silo (1C), and the dryer. The fourth lifting line (C7) for returning the grains discharged from the lower end of (C3) to the tempering tank (1B).
And a fourth transfer line (C6) for transferring to the lower end of the.

Explaining the grain transfer line (D), the grain discharged from the lower end portion of the silo (1C) arranged between the cargo receiving tank (1A) and the tempering tank (1B) is the grain receiving tank (1C). 1A) to the tempering tank (1B), the same route as when transferring grains, that is, the first transfer line (D6), the second transfer line (D7), the third lifting line (D12), and A fourth feeding line (C7) that constitutes the drying line (C) through the switching valve (D13) and its switching valve (C8),
And, via the fifth lifting line (C2) and its switching valve (C2), it is transported to the sixth transportation line (D1) that laterally feeds the grain above the silo (1C), and the silo ( It can be returned to 1C).

However, the grain transport line (D) is also used to transport grain between the cargo receiving tank (1A) and the tempering tank (1B) and the silo (1C) disposed on the opposite side. Opposite silo (1C) to allow
7th conveyor line (D8) for laterally feeding the grain discharged at the lower end of the
9), a sixth lifting line (D10) for lifting grains from the eighth carrying line (D9), and a starting end of the third lifting line (D12) for laterally feeding the lifted grains. Via the ninth transfer line (D11), the cargo receiving tank (1A) and the tempering tank (1B) above the sixth transfer line (D1) above the silo (1C). The 10th transfer line (D) that transfers grain to the upper part of the silo (1C)
2) and the first to traverse grain at the top of the silo (1C)
Equipped with 1 transfer line (D3) each.

Next, the shipping process will be described.

Grain discharged from the silo (1C) is branched from the grain transfer line (D) by a switching valve (D13) provided above the third lifting line (D12) of the grain transfer line (D). Then, it is conveyed to the above-mentioned selection machine (E4) or the weighing machine for sale (E5) via the flow control tank (E1), the precleaner (E2), and the switching valve (E3). . However, the grain discharged from the selection machine (E4) can be conveyed to the selling weighing machine (E5).

The grain weighed by the weighing machine for sale (E5) is the 7th
After being lifted above the building on the lifting line (E8), it is transported to the grain hull adjusting device (F1). However,
A switching valve (E9) at the end of the seventh lifting line (E8)
Is provided, and the grains that have been transported above the building on the seventh lifting line (E8) via the eighth lifting line (E10) are located above the silo (1C) at the eleventh transfer line (D1). ) And then return to the silo (1C).

Grains discharged from the paddy hull adjusting device (F1) are pumped above the building through the stone removing machine (F2) and the ninth lifting line (F4), and through the switching valve (F5), It is designed to be transported to the weighing tank (F5) of the shipping weighing machine (F15) or the brown rice weighing machine (F6).

The grain discharged from the brown rice weighing machine (F6) is lifted upward by the tenth lifting line (F9), and the twelfth conveying line (F1).
0), the rice is stored in each of a plurality of brown rice tanks (F11) in a predetermined amount.

The grain discharged from the brown rice tank (F11) is discharged from the thirteenth transportation line (F12) to the bed of a truck for transportation and shipped.

However, although not described in detail, the grain discharged from the brown rice weighing machine (F6) is sent to the so-called flexible container ring (F8) by the switching valve (F7) to be fed to the brown rice tank (F1).
It is also possible to ship without going through 1).

In FIG. 1, (B3) is a dust collecting fan attached to the lower end of the cargo receiving tank (1A), which acts on each of the four sub tanks (7) separately. Is equipped with four. Further, (B4) is a suction type exhaust fan for discharging the internal air from above the cargo receiving tank (1A) to the outside so that it simultaneously acts on the four sub tanks (7). One is provided in.

[Another embodiment]

In the above embodiment, the case where the insides of the cargo receiving tank (1A) and the tempering tank (1B) are divided into a plurality of sub-tanks (7) is exemplified, but like the silo (1C),
A plurality of sub tanks (7) may be provided without dividing the inside.

Further, in the above embodiment, the case where the cargo receiving tank (1A), the tempering tank (1B), and the silo (1C) are used as the pillars of the building (2) that houses the machinery of the grain processing equipment is used. As illustrated, it may be attached outside the building (2), or may be attached inside the building (2) to form a separate body from the building (2), or the cargo receiving part (3) may be provided outside the building. Alternatively, the specific configuration of each part such as the specific configuration of the grain transfer line (D) and the drying transfer line (C) can be changed in various ways.

It should be noted that reference numerals are added to the claims for convenience of the drawing, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a weighing device of a grain processing facility according to the present invention, and FIG. 1 is a block diagram of a facility configuration showing a transportation route,
FIG. 2 is an explanatory view of changes in measured values, FIG. 3 is a plan view of a cutout inside the building, FIG. 4 is a front view of the cutout, FIG. 5 is a rear view of the cutout, FIG. 6 is a perspective view of the appearance of the building, and FIG. FIG. 8 is a cutaway side view of the cargo receiving tank, and FIG. 8 is a cutaway plan view of the ventilation duct. (A1) …… Hopper, (A2, A3) …… Conveying means, (A7)…
… Flow path switching unit, (A8) …… Batch type weighing machine,
(R) ... increase rate of measured value, (A9) ... control means.

Claims (1)

[Claims] 1. A hopper (A1) for receiving grains, and a batch type weighing machine (A8) for weighing the weight of grains supplied.
A weighing device for a grain processing facility, which is provided with a conveying means (A2, A3) for supplying grains from the hopper (A1) to the weighing machine (A8), and is provided with a plurality of the weighing machines (A8). The transfer means (A2, A3) is provided with a flow path switching unit (A7) for switching to which of the plurality of weighing machines (A8) grain is supplied, and the weighing machine currently being weighed ( In A8), when the rate of increase (R) of the weighing value becomes less than or equal to the set value, the weighing machine (A8) to which the grain is supplied is switched from the currently weighing weighing machine to another weighing machine. A weighing device for grain processing equipment, which is provided with control means (A9) for operating the flow path switching unit (A7) based on weighing information of a weighing machine (A8).