JP2009041887A - Joint dry storage facility for grain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint dry storage facility for grain which avoids a load receiving peak without lowering a received grain drying efficiency and prevents received grain from remaining on standby. <P>SOLUTION: In the grain joint dry storage facility 1, at the load receiving peak of rack-type grain drying equipment 1a, the grain half-dried by the rack-type grain drying equipment 1a is stored in ventilated containers and the containers are sequentially transferred to and stored in rack-type brown-rice cold storage equipment 1b, so that some of the drying racks of the rack-type grain drying equipment 1a become idle, thereby capable of putting grain in a bulk container and transferring it to an idle drying rack to dry the grain without leaving the next received grain on standby. When the load receiving peak of the rack-type grain drying equipment 1a has passed, the half-dried grain stored in the rack-type brown-rice cold storage equipment 1b can be transferred again to the rack-type grain drying equipment 1a for finishing drying. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a joint dry storage facility for grains such as rice grains, and more particularly to a rack drying unit.

  Conventionally, as a joint dry storage facility of this kind of grain provided with a rack-type drying section, for example, those of Patent Document 1 and Patent Document 2 are known. The common dry storage facility for grains in Patent Document 1 stores a plurality of drying containers containing consigned grains (substances to be dried) in multi-stage racks (shelves), and supplies drying air from below into each drying container. And a rack-type drying section for drying. The rack-type drying unit performs management of entering / exiting of each drying container containing consigned grains into / from the rack and management of the drying state of grains in each container by a drying storage / delivery management system equipped with a stacker crane or the like. In addition, the drying container is controlled so as not to cause drying unevenness by taking out the container being dried at every arbitrary time and placing it on a reversing machine to transfer the grain to another container. Then, the dried containers are discharged from the container by using a stacker crane to hang the corresponding container on a reversing machine, and shipped via a conveying means such as an elevator or a conveyor. It is transferred to a silo or the like and stored.

  On the other hand, the common dry storage facility for grain in Patent Document 2 is a rack in a warehouse in which a plurality of cereals are placed on a breathable pallet and the pallet stacking container is air-conditioned by an air conditioner. It is provided with a rack-type drying section that is transported to and dried. The pallet stacking containers (dried grains) that have been dried in the rack of the rack-type drying unit are transported as they are to a rack in another compartment that is air-conditioned and stored at a low temperature. The dried cereals stored at a low temperature are transported to a preparation unit that performs rice hulling or the like as needed to be browned rice, stored again at a low temperature in a rack in the warehouse, and prepared for shipment.

Japanese Patent No. 3385878 Japanese Patent Laid-Open No. 9-30605

By the way, in the joint dry storage facility of the grain of the above-mentioned patent documents 1 and patent documents 2, there were the following problems, respectively.
First, the common dry storage facility provided with the rack-type drying section of Patent Document 1 is a problem of correspondence at the peak receiving time. In the heyday of grain harvesting, the receipt of grains is concentrated, and the quantity received exceeds the drying processing capacity of the rack-type drying unit, and all racks may be in dry use. The consignment grain brought in by the producer is not dried until the rack becomes empty, and is put on standby on a standby shelf or the like.

On the other hand, the joint drying storage facility of Patent Document 2 is a problem of grain drying efficiency. That is, in the rack-type drying section of Patent Document 2, the receiving grain in each pallet stacking container is dried under an indoor air environment that is air-conditioned in the warehouse without being subjected to the ventilation effect of the drying air. For this reason, the drying time becomes longer. For this reason, as described above, when the amount of the grain received exceeds the drying processing capacity at the peak receiving time, the receiving grain is put on standby to deteriorate the quality of the grain.
Therefore, in view of the above problems, the present invention is technically intended to provide a joint dry storage facility for grains that avoids receiving peak without lowering the drying efficiency of receiving grains and does not make the receiving grains stand by. It is to be an issue.

In order to solve the above problem, according to claim 1,
A rack-type grain drying facility that has a porous bottom plate and puts grains in a box-shaped container with the top open, places the grains in a multistage rack, and blows the grains by blowing hot air from below the containers In a grain dry storage facility with
Adjacent to the rack-type grain drying equipment, the room air is controlled at low temperatures by an air conditioner, and the rack-type brown rice low-temperature storage equipment that stores the stored brown rice in a breathable container and places it in a multistage rack is also provided. And
Instructing means for giving instructions to store the semi-dried grain in the rack-type grain drying facility in a breathable container, and to transport and store the grain-containing container to the rack-type brown rice cold storage facility by the transporting means. Prepared,
A technical means was provided between the rack-type grain drying facility and the rack-type brown rice low-temperature storage facility, which includes transport means for transporting the grain container.

  The instructing means transports again the grain container containing the semi-dried grains transported and stored in the rack-type brown rice low-temperature storage facility to the rack-type grain drying facility via the transport means, and is semi-dried. Instructions should be given to finish and dry the grain.

According to the grain dry drying storage facility of the present invention, at the peak receiving time of the rack-type grain drying equipment, the grain that has been semi-dried by the rack-type grain drying equipment is accommodated in a breathable container, Since the rack-type brown rice cold storage equipment is transported and stored, an empty rack is created in the rack-type grain drying equipment, and the next grain is received without waiting for it to be placed in a container. Can be dried. As a result, it is possible to avoid receiving peak without lowering the drying efficiency of the rack-type grain drying equipment, and thereby drying can be performed without causing quality deterioration due to waiting (leaving) of the receiving grain (ginger). In addition, the semi-dried grain is stored in a rack-type brown rice low-temperature storage facility, so quality does not deteriorate.
Also, when the rack-type grain drying facility has received the peak delivery time and an empty rack has been created, the semi-dried grain stored in the rack-type brown rice low-temperature storage facility is transported to the rack-type grain drying facility together with the containers. And finish drying.

  The grain common dry storage facility 1 of the present invention will be described (FIG. 1). The grain common dry storage facility 1 includes a rack-type grain drying facility 1a and a rack-type brown rice low-temperature storage facility 1b attached thereto.

Rack-type grain drying equipment 1a (see FIG. 2):
The rack-type grain drying facility 1a is provided with a roughing machine that removes contaminants mixed in the lifting and lowering transporting machine 4 and the grain following the receiving process 3 for receiving the grain (ginger) brought by the producer. Selection process 5, lifting and lowering transport machine 2, weighing and feeding process 6 for weighing grains and feeding them to the container, stacker crane 7 for feeding the grains fed container to a rack-type drying section 8 to be described later, and multi-stage racks 8a and 8b The rack-type drying unit 8 is provided.

  Furthermore, following the rack-type drying unit 8, a stacker crane 9 for taking in and out the containers placed on the multi-stage rack 8a, a reversing step 10 for discharging the grain of the carried containers by a reversing machine, and discharging in the reversing step 10 A supply step 11 for supplying the cereal grains again to another container or the like is provided. In addition to connecting to the shipping process, the supplying process 11 is connected to the stacker crane 9 to transport the container again to the multi-stage rack 8a and dry it. The rack type brown rice cold storage facility 1b is connected. In addition, the control device (instruction means) 12 performs control management of each process in the rack type grain drying facility 1a, and the control device 12 also performs control management of each step of the rack type brown rice low temperature storage facility 1b described later. The control device (instruction means) 12 includes a central processing unit (CPU) and a storage unit and an input / output unit with a built-in operation control program, so that instructions can be given to each process via the input / output unit. It is.

  As shown in FIG. 3, the rack-type drying unit 8 includes multi-stage racks 8 a and 8 b that are provided opposite to each other. A passage space in which the stacker crane 7 travels is provided between the multi-stage rack 8a and the multi-stage rack 8b, and in accordance with an instruction from the control device 12, the grain-filled container is conveyed to the instructed rack. .

  Each of the multi-stage racks 8a and 8b includes hot air generators 13a and 13b including a kerosene combustion burner and a blower fan, and hot air supply pipes 14a and 14a for supplying hot air generated from the hot air generators 13a and 13b to each rack. 14b is disposed. An open / close valve 15 is provided at the end of the hot air supply pipes 14a and 14b led to each rack, and the open / close valve 15 has a container K placed in the rack and the hot air introduction pipe of the container K is opened and closed. It opens when connected to the valve 15 and closes when the container K is unloaded (see Patent Document 1).

Rack-type brown rice cold storage facility 1b (see FIG. 4):
The rack-type brown rice low-temperature storage facility 1b sorts and removes immature grains and the like mixed in the unpolished rice using a brown rice tank 17 and a grain sorter (well-known) following the unloading process 16 for receiving unpolished rice brought by the producer. Grain sorting process 18 to perform, stone removal process 19 to sort and remove small stones mixed in unloading rice using a stone remover (well-known), colored grains mixed into unloading rice using an optical grain sorter (well-known) An optical sorting step 20 for sorting and removing foreign substances, a brown rice homogenizing step 21 using a brown rice homogenizer (well known), and a product tank 22 are provided.

  Furthermore, following the product tank 22, a supply process 23 for supplying and filling product brown rice in the product tank 22 into a breathable container (for example, a flexible container). A rack low-temperature storage chamber 24 for storing the stored unloading rice in a multi-stage rack and a shipping process 25 are provided.

  As shown in FIG. 5, the rack low temperature storage chamber 24 includes a first storage chamber 26 and a second storage chamber 27.

First storage room 26:
The first storage chamber 26 has multi-stage racks 28a and 28b arranged opposite to each other. A passage space where the stacker crane 29 travels is provided between the multi-stage rack 28a and the multi-stage rack 28b, and the stacker crane 29 receives each flexible container filled with brown rice according to instructions from the control device 12. It is intended to be transported to the designated rack. In addition, an air conditioner 30 is provided in the first storage chamber 26 to manage the temperature of the indoor air at a low temperature (for example, 15 ° C., <humidity 70%>) to prevent quality deterioration in brown rice storage. ing.

Second storage room 27:
The second storage chamber 27 has multi-stage racks 31a and 31b arranged in a pair. A passage space in which the stacker crane 33 travels is provided between the multi-stage rack 31a and the multi-stage rack 31b. The stacker crane 33 is operated by the control device (instruction means) 12 according to instructions from the rack type grain drying facility. Each container K containing the semi-dried baskets conveyed from 1a at the peak of receiving the cargo is conveyed to the designated rack.

  Each of the multi-stage racks 31a and 31b includes a pair of dehumidifiers 34, a cooler 35, and a blower fan 36, and a low-temperature wind that supplies low-temperature air generated by the dehumidifier 34 and the cooler 35 to each rack. A supply pipe 37 is provided. An open / close valve 39 is provided at the end of the low-temperature air supply pipe 37 led to each rack, and the open / close valve 18 has the container K placed in the rack in the same manner as described in the rack-type drying unit 8. In this case, the low temperature wind introduction pipe in the container K is opened by connecting to the on-off valve 18 and is closed when the container K is carried out (see Patent Document 1). The low-temperature air supply pipe 37 is provided with each branch pipe 37a for supplying the air blown from the blower fan 36 to each container, while the further end of the main pipe is connected to the dehumidifier 34, The blast is used in a circulating manner.

  Next, between the rack type grain drying facility 1a and the rack type brown rice low temperature storage facility 1b, a transport means 39 for transporting the grain container is disposed. The conveying means 39 is disposed between the rack-type drying unit 8 in the rack-type grain drying facility 1a and the second storage chamber 27 in the rack-type brown rice low-temperature storage facility 1b, and receives the receiving peak of the rack-type grain drying facility 1a. Sometimes, according to the instruction of the control device 12, the rice cake semi-dried by the rack type grain drying facility 1a is put into a grain container (container K) and conveyed to the second storage chamber 27 of the rack type brown rice cold storage facility 1b. Configured for storage. The said conveyance means 39 is comprised using well-known conveyance means, such as a chain conveyor and a roller conveyor, for example.

Action:
Next, the effect | action of the grain common dry storage facility 1 of this invention is demonstrated.

  In the rack-type grain drying equipment 1a, as shown in FIGS. 2 and 4, the ginger carried by the producer is received by a cargo receiving hopper (a cargo receiving process 3), and then sent to a coarse selection process 5, where Contaminants mixed in the consignee are removed by the selector. Thereafter, the container is transported to the weighing and supplying step 6 to supply and fill the container K for drying while weighing the cargo receiving basket. At this time, a sample of the consumable ginger is collected and sent to the self-testing apparatus, and the self-testing apparatus inspects the ginger sizing yield and the like. The container K (grain storage container) is open at the top and is formed in a box shape with four side plates and a bottom plate, and the bottom plate is porous to allow ventilation through the grains (ginger).

  Next, the container K filled with the consignment basket is transported to an arbitrary rack of the multi-stage rack in the rack drying unit 8 by the stacker crane 7 based on the instruction of the control device 12. At this time, the on-off valve 15 on which the container K is transported and placed in an arbitrary rack is opened, and hot air from the hot air generator 13 is supplied to the lower side of the container K through the hot air supply pipe 14a, so The intercostal space is ventilated so that the ginger is gradually dried. The control device 12 monitors the drying time of each container K. When a predetermined time elapses, the control device 12 unloads the container K by the stacker crane 9 and sends it to the reversing process 10 to reverse the container K and discharge the soot. Send to supply step 11.

  In this supply step 11, the moisture content of the discharged soot is measured, and if the measured moisture content does not reach the finished moisture value (about 15%) based on the instruction of the control device 12, another container K is used again. And is transported to an arbitrary rack of a multi-stage rack, and drying is continued. On the other hand, if the measured moisture content is the finished moisture value (about 15%), the soot is transported to the shipping process 25 and shipping operations (details omitted) are sequentially performed. In addition, it may be transported and stored in a silo or the like.

  The characteristic operation of the present invention will be described.

  In the rack-type grain drying facility 1a, when all racks in the rack-type drying unit 8 are filled with containers and are in use for drying, and the amount of grain received exceeds the drying capacity (the peak time of receipt), the supply When the moisture content of the soot measured in step 11 is the moisture value in a semi-dry state (about 17 to 18%), the semi-dry soot is supplied and filled based on the instruction of the control device (instruction means) 12 The container K is transferred to the second storage chamber 27 of the rack-type brown rice cold storage facility 1b through the transfer means 39. In the second storage chamber 27, the transported container K (with semi-dried baskets) is transported to an arbitrary rack of the multistage racks 31 and 32 by the stacker crane 33 based on the instruction of the control device 12. Store.

  When the container K is placed on an arbitrary rack, the low-temperature air introduction pipe of the container K and the end of the low-temperature air supply pipe 37 are connected to open the on-off valve 39, whereby the dehumidifier 34 and Low-temperature dehumidification air (low-temperature drying air) from the cooler 35 is supplied to the lower part of the container K and passes through the semi-dried furrow. Thereby, the quality of the semi-dried soot in the container K does not deteriorate. In addition, since the low-temperature dehumidification air (low-temperature drying air) is passed through the semi-dried soot, there is an effect that it is gradually dried and close to the finished moisture content. Accordingly, since the rack can be opened at the peak receiving time of the rack-type grain drying facility 1a, the receiving grain can be received and dried without waiting.

  The control device 12 monitors whether or not the peak receiving time of the rack-type grain drying facility 1a has passed, and when the peak receiving time has passed and there is enough room in the rack, the container being stored in the second storage chamber 27 is stored. K is sequentially carried out by the stacker crane 33 and conveyed to the rack-type drying unit 8 of the rack-type grain drying facility 1a via the conveying means 39. In the rack-type drying unit 8, the transported container K is transported to the empty racks of the multi-stage racks 8 a and 8 b based on the instructions of the control device 12, re-dried, and the semi-dried basket is finished and dried. To do. The semi-dried soot to be re-dried is slightly dried by the passage of the low-temperature dehumidifying air (low-temperature drying air) in the second storage chamber 27, so that the drying load in the rack-type drying unit 8 is reduced. Has the effect of reducing

  In the rack-type brown rice low-temperature storage facility 1b, as shown in FIGS. 4 and 5, the brown rice carried by the producer is received by a load receiving hopper (load receiving step 16), and then a part of the sample is put into the inspection inspection device. The unpolished rice is sent to the unpolished grain in the grain sorting process 18 through the brown rice tank 17, and then sent to the stone removal process 19 to sort out the mixed stone. Is done. Subsequently, colored grains and foreign matters are sorted in the optical sorting step 20, and thereafter, the brown rice is supplied and filled into the flexible container through the brown rice homogenizing step 21, the product tank 22 and the supply step 23.

  The brown rice supplied and filled in the flexible container is transferred to the first storage chamber 26 of the rack low-temperature storage chamber 24, and in the first storage chamber 26, the transferred flexible container is based on the instructions of the control device 12. The stacker crane 29 transports and stores it in an arbitrary rack of a multistage rack. The air in the first storage chamber 26 is managed at a low temperature by the air conditioner 30 so that the temperature becomes, for example, 15 ° C. and humidity 75%, thereby reducing the quality of brown rice in each flexible container placed in a multistage rack. Good storage while preventing.

  In addition, in the said Example, the grain storage container used when conveying and storing the semi-dried rice bran to the said rack-type brown rice low-temperature storage equipment 1b at the peak receiving time of the rack-type grain drying equipment 1a is a rack type. Although it was used in the drying unit 8, the present invention is not limited to this, and a flexible container with good ventilation is used, or the upper side opening with good ventilation is made up of both side plates and bottom plates made of perforated plates (punching metal). A box-shaped container of a mold may be used. When such a flexible container or the like is stored as the grain container, the second storage chamber 27 may be transported and stored not in the second storage chamber 27 but in a multistage rack of the first storage chamber 26. May not be provided. When the flexible container or the like is used, when it is again returned to the rack-type grain drying facility 1a and finished and dried, for example, as shown by a broken line Y in FIG. It is good to carry out by supplying.

The whole figure of the grain joint dry storage facility in this invention is shown. A schematic overview of a rack-type grain drying facility is shown. The schematic side view of the principal part of a rack type grain drying equipment is shown. A schematic process flow of a rack-type grain drying facility and a rack-type brown rice cold storage facility is shown. A schematic side view of the rack cold storage room is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Grain common drying storage facility 1a Rack type grain drying equipment 1b Rack type brown rice low-temperature storage equipment 2 Lifting conveyor 3 Load receiving process 4 Lifting conveyor 5 Coarse selection process 6 Weighing supply process 7 Stacker crane 8 Rack drying section 8a Multistage rack 8b Multi-stage rack 9 Stacker crane 10 Inversion process 11 Supply process 12 Control device (instruction means)
13 Hot air generating means 14 Hot air supply pipe 15 On-off valve 16 Loading process 17 Brown rice tank 18 Grain sorting process 19 Stone extraction process 20 Optical sorting process 21 Brown rice homogenization process 22 Product tank 23 Supply process 24 Rack low temperature storage room 25 Shipping process 26 1 storage chamber 27 second storage chamber 28a multi-stage rack 28b multi-stage rack 29 stacker crane 30 air conditioner 31a multi-stage rack 32a multi-stage rack 33 stacker crane 34 dehumidifier 35 cooler 36 blower fan 37 cold air supply pipe 38 on-off valve 39 conveying means K Container R rack (shelf)

Claims (2)

A rack-type grain drying facility that has a porous bottom plate and puts grains in a box-shaped container with the top open, places the grains in a multistage rack, and blows the grains by blowing hot air from below the containers In a grain dry storage facility with
Adjacent to the rack-type grain drying equipment, the room air is controlled at low temperatures by an air conditioner, and the rack-type brown rice low-temperature storage equipment that stores the stored brown rice in a breathable container and places it in a multistage rack is also provided. And
Instructing means for giving instructions to store the semi-dried grain in the rack-type grain drying facility in a breathable container, and to transport and store the grain-containing container to the rack-type brown rice cold storage facility by the transporting means. Prepared,
A joint dry storage facility for grains, comprising transport means for transporting the grain storage container between a rack-type grain drying facility and the rack-type brown rice cold storage facility.   The instructing means transports the grain-containing container containing the semi-dried grain transported and stored in the rack-type brown rice low-temperature storage facility to the rack-type grain drying facility via the transport means again, 2. The grain dry storage facility according to claim 1, wherein instructions for finish drying are issued.

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