JP3457272B2 - Automatic supply equipment for infectious waste packaging and its automatic supply method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic supply facility for temporarily storing infectious waste packaging and supplying it to an incinerator of an incineration facility, and an automatic supply method thereof.

[0002]

2. Description of the Related Art As for a mass storage device for containers of the same shape such as a container in a narrow site and its loading / unloading control method, there have been many technologies of a three-dimensional automatic warehouse using a loading / unloading mechanism such as a stacker crane or a picking crane. It is provided.

Most of them are stored in a storage rack having a plurality of fixed racks of a plurality of rows and a plurality of stages, and the packages put on a pallet with an address indicating the storage position are stored by a loading / unloading mechanism, and the required packaging is carried out. When the carry-out command is issued, the carry-in / carry-out mechanism is guided to a pallet at a predetermined address, the pallet is unpacked and transferred to the next process, and the empty pallet is stored at a predetermined position for each address.

[0004]

By the way, infectious substances contained in medical waste are sorted, collected, transported, and stored.
“Infectious waste treatment manual based on the Waste Treatment Law”
As for the structure of the packaging, (1) Use sharp containers that are pierce-resistant to prevent danger (2) Use solid containers that are solid. (3) It is stipulated that a liquid container or a mud-shaped container that uses double bags should be a closed container in which waste liquid does not leak.

When storing infectious wastes that may be putrefaction for a long time, store them in a closed container,
Anti-corruption measures such as putting in the refrigerator are required.

In a conventional incineration facility, infectious waste packages that are intensively carried in early in the morning and in the evening are piled up at the receiving place, and are sequentially put into a conveyor to be sent to an incinerator by a forklift or the like. In addition, there is a problem that the robust packaging is damaged and infectious substances are scattered, and the state of introduction into the incinerator becomes intermittent, and the combustion state in the incinerator becomes unstable.

Further, medical waste contains not only a large amount of paper, cotton and plastics that generate a large amount of heat, but also non-combustible materials such as injection needles, glass, and cast remnants, which are discarded. Since the fluctuation of the calorific value of a product is extremely large, it is necessary to stabilize the combustion state by leveling the packing and loading situation into the incinerator as much as possible.

[0008] Recently, as a countermeasure, a large variety of medical wastes discharged from each medical institution are stored in a regular packaging of a certain size provided by an incinerator, and then transported to an incineration facility for storage. However, the situation in which mechanical processing is appropriately performed has increased.

In this case, although 8 to 15 kg of medical waste is often stored in each package, the larger the processing capacity of the incineration facility, the larger the number of packages and the problem of storage / delivery method. In addition, since dangerous goods are built in, careful operation is required to prevent damage to the packaging.

Here, the technology of the above-mentioned three-dimensional automated warehouse requires at least one loading / unloading mechanism for every two articles of a plurality of storage shelves, empty pallet storage equipment, and overall control / management / guidance equipment. This is not only an increase in cost, but it is also a method in which the work to be carried out becomes complicated and the unloading speed of the package becomes unstable because it is necessary to put the incoming package on a predetermined pallet next time or to store an empty pallet at a predetermined position.

However, in the case of a supply facility for storing medical waste packages and supplying them to the incinerator, it is not necessary to select the packages, and it is necessary to level the package carry-in status. It is necessary to simplify the entire equipment and simplify the process, except for special consideration for prevention.

[0012]

According to a first aspect of the present invention, there is provided an automatic supply facility for infectious waste packages in which a plurality of stages of infectious waste packages having the same shape are stacked from a front side to a rear side. A supply mechanism for moving a supply conveyor provided at the bottom and a storage mechanism provided at the bottom for a storage conveyor for moving the pallet in both front and rear directions are provided alongside a plurality of storage mechanisms, and one of them is provided. A storage / supply device having a storage part provided with a cooling means in the part, a supply mechanism and a fixed rack for storing the storage part, and a storage / supply device arranged to face the reception side front surface of the storage / supply device, and the pallet is moved forward and backward. An elevating mechanism that includes a carry-in conveyor that moves in both directions, and that raises and lowers the carry-in conveyor, and that is arranged to face the discharge side of the supply conveyor, and an elevating mechanism that moves in both left and right directions as a whole. And a dump-type loading mechanism that is tiltable in the front-rear direction, including a loading conveyor that moves the pallet in both the front and rear directions, and a vertically movable packing discharge height adjusting unit that discharges the stacked packages one by one from the upper stage. A loading device having a discharge conveyor for receiving empty pallets loaded from the dump-type loading mechanism, and arranged to be disposed in front of the loading conveyor to receive the packages loaded from the dump-type loading mechanism. An incineration conveyor with a receiving hopper and scraping means,
And a control device for controlling the operation of each of the above devices.

The automatic supply method of infectious waste packaging according to the invention of claim 2 is an automatic supply method of infectious waste packaging using the automatic supply facility for infectious waste packaging according to claim 1. Then, the pallets loaded with multiple stages of infectious waste packages of the same shape are sequentially stored from the front side to the rear side on the empty conveyors and storage conveyors of the supply mechanism and storage mechanism using the carry-in conveyor. In addition, when an instruction to load the package is issued from the incinerator, the operation moves to the loading operation, and the packing group at the rear end of the supply conveyor is carried into the loading conveyor of the dump type loading mechanism in a horizontal posture together with the pallet, and then the dump type loading mechanism. And the packing discharge height adjusting means are moved downward so that the stacked packages are loaded one by one from the upper stage onto the incinerator via the receiving hopper. Then, the packed packing is leveled by the scraping means, and when the pallet is emptied by the loading operation, the dump type loading mechanism is inverted to the discharging side, thereby discharging the empty pallet to the discharging conveyor and dumping it. The loading operation is completed by returning the loading conveyor of the type loading mechanism to the horizontal state, and the pallet stored in the storage conveyor is transferred to the empty supply conveyor by repeating the loading operation via the loading conveyor. Therefore, the following packing group is supplemented from the storage unit to the supply conveyor.

In the method for automatically supplying infectious waste packages according to the third aspect of the present invention, when the loaded packages are stored for a long time, they are loaded into a storage mechanism provided with a cooling means and stored. , To prevent infectious waste from decaying.

[0015]

1 is a partially cutaway side view showing a schematic configuration of an automatic supply facility for medical waste packaging according to the present invention, and FIG. 2 is a front view of the facility.

In FIGS. 1 and 2, reference numeral 1 denotes a lifting mechanism such as a stacker crane that can move the loading-side front surface of the storage and feeding device 2 to the left and right, and a loading conveyor 12 that can be lifted and lowered within an outer frame 11. The loading conveyor elevating means 13 and the elevating mechanism moving means 14 are provided.

Reference numeral 21 denotes a 1 installed at the bottom of the supply mechanism 22.
Reference numeral 23 is a base supply conveyor, 23 is a plurality of storage mechanisms, storage conveyors 24 that can be driven in both front and rear directions are installed at the bottom of each storage mechanism 23, and a stop plate 25 is installed at the end. . In addition, a plurality of storage mechanisms 23
A part of the cooling means 2 for cooling the stored packing group B.
6 are provided.

A storage section is formed by a plurality of storage mechanisms 23 stacked in a plurality of stages around the supply mechanism 22.

Further, the one supply mechanism 22 and the plurality of storage mechanisms 23 are arranged in a fixed rack 28 having load collapse prevention covers 27 on both sides, respectively. The storage and supply device 2 is composed of the storage mechanism 23 and the fixed rack 28.

Reference numeral 3 denotes a loading device, which is provided with a packing discharge height adjusting means 31 which can be moved up and down like an electric shutter, and a loading conveyor 32 which can be driven in both front and rear directions, and which can be displaced in the front and rear direction. It is composed of a formula loading mechanism 33, a vacant pallet discharging conveyor 34 which is a fixed roller conveyor, a vacant pallet stacking means 35, and a driving means for each device (not shown).

Reference numeral 4 denotes an incineration conveyor which comprises a receiving hopper 41, a rotary scraping means 42, a conveyor main body 43 having a scraper, and a driving means (not shown).

The automatic supply equipment thus constructed is controlled in operation by a controller (not shown) on the basis of detection signals from the respective detectors described later.

Next, an automatic supply method in an automatic supply facility for medical waste packaging will be described mainly with reference to FIG. 1 and optionally with reference to FIGS. 2 to 4 together with operation control by a controller.

Here, FIG. 3 is a schematic diagram showing the operation of the loading device at the time of loading the package, and FIG. 4 is a schematic diagram showing the discharge state of empty pallets.

In FIGS. 1 to 4, a plurality of medical waste packages b carried in from each medical institution are properly stacked on a pallet P to form a package group B, and are then palletized by a forklift or the like (not shown). The loading conveyor elevating means 13 and the elevating mechanism moving means 1 are stacked on the carry-in conveyor 12 together with P and see the display of the display 52 by the empty line detector 51 provided at the entrance side of the storage mechanism 23.
4 is operated to be loaded into the storage mechanism 23 having an empty space S in the storage section.

The package group B carried in is stored in the storage conveyor 24.
When the target storage mechanism 23 is full, the storage conveyor 24 is stopped by the full detector 53 attached to the stop plate 25, and the display 52 displays full.

When the package detector 54 located near the entrance of the conveyor main body 43 detects that there is no passing package b, a feeding instruction is sent to the supply mechanism 22, and the supply mechanism 22 is first provided on the carry-out side. By the transfer detector 55,
Move the supply conveyor 21 forward by one package group B,
The first packing group B is placed on the loading conveyor 32 on the loading device 3 in the horizontal posture.

At the time of receiving the above-mentioned package, the dump-type loading mechanism 33, which was in the horizontal position shown by the alternate long and short dash line in FIG. 3, is tilted toward the incinerator 4 side as shown by the solid line, and then the package discharge height adjusting means 31 is packaged. By lowering by one step, the plurality of packages b in the uppermost layer are received by the receiving hopper 41.
Falls into the incineration conveyor 4.

By lowering the adjusting means 31 step by step, the plurality of packages b constituting the package group B are dropped one by one from the upper stage into the incinerator 4 and are conveyed to an incinerator (not shown).

In this case, in order to prevent the packing b from being accumulated irregularly in the receiving hopper 41 and the transfer of the packaging b to be irregular, the scraping means 42 rotating rotates to accumulate the packing b irregularly. The package b is pushed back to level the transfer of the package b to the conveyor body 43 (see FIG. 2).

If the packing operation of the packing group B is completed,
As shown in FIG. 4, the dump-type charging mechanism 33 is reversed to the discharging position and the charging conveyor 32 is reversed to discharge the remaining empty pallets P to the empty pallet stacking means 35 via the discharging conveyor 34.

When the series of receiving → loading → discharging operations are completed, the next packing group B is placed on the loading device 3 from the supply mechanism 22, and if a receiving signal from the packing detector 54 is issued, the above-mentioned operation is performed. When the transfer detector 55 finds that there is no package group B in the supply mechanism 22, the supply mechanism 22 is appropriately supplemented with the next package group B from the plurality of storage mechanisms 23 constituting the storage section.

This compensation is performed as follows. First, the elevating mechanism 1 is moved right and left and up and down to a position corresponding to the storage mechanism 23 in which the packing group B to be supplemented in the supply mechanism 22 is moved, and the elevating mechanism 1 is moved to the elevating mechanism 1 by the storage conveyor 24 and the carry-in conveyor 12. The package group B is once carried in. After that, the elevating mechanism 1 is moved to a position facing the supply mechanism 22, and the elevating mechanism 1 carries in the supply mechanism 22 by the carry-in conveyor 12 and the supply conveyor 21 to supplement the packing group B from the predetermined storage mechanism 23. To do.

When the stored packing group B is stored for a long time for some reason, it is carried into the storage mechanism 23 provided with the cooling means 26 to prevent the infectious waste from spoiling.

The discharge conveyor 34 has been described as a fixed roller conveyor, but it may be one that can adjust the falling angle of the pallet P with the loading conveyor 32 side as an axis.

Although the scraping means 42 has been described as a rotary type, it may be a fixed rod protruding type that limits the height of the package b by utilizing the angle of repose of the conveyor main body 43.

[0037]

As described above, according to the automatic supply facility for medical waste packaging and the automatic supply method thereof according to the present invention, the packages loaded on the pallet after being stored neatly in the storing and supplying device are further improved. Since it is a system in which they are thrown into the incinerator one by one, the medical waste packaging, which is a dangerous material, is not damaged or spoiled in combination with the use of the cooling means in the storage section.

Further, since the number of packages sent to the conveyor body is leveled by the scraping means, the combustion state in the incinerator becomes stable.

Therefore, it is possible to carry out the safe loading / unloading work and the stable transfer of the medical waste packaging to the incineration facility with a simple facility.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a schematic configuration of an automatic supply facility for medical waste packaging according to the present invention.

FIG. 2 is also a front view of the automatic supply facility.

FIG. 3 is a schematic diagram showing the operation of the loading device when loading the package.

FIG. 4 is a schematic diagram showing a discharge situation of empty pallets.

[Explanation of symbols]

1 Lifting mechanism 2 storage supply device 21 Supply conveyor 22 Supply mechanism 23 Storage mechanism 24 Storage conveyor 28 fixed racks 3 Input device 31 Packing discharge height adjustment means 32 input conveyor 33 Dump type loading mechanism 34 discharge conveyor 4 incinerator 41 receiving hopper 42 Means for scratching

Continuation of front page (51) Int.Cl. ⁷ identification code FI F23G 7/00 ZAB F23G 7/00 ZABA (58) Fields investigated (Int.Cl. ⁷ , DB name) B01J 4/00-4/02 B65G 1/00 B09B 3/00

Claims (3)

(57) [Claims] 1. A plurality of infectious waste packages of the same shape.
A supply coil that moves the stacked pallets from the front side to the rear side.
A single feeding mechanism with a conveyor at the bottom and the pallet
A storage conveyor is installed at the bottom to move the
A plurality of scraped storage mechanisms are installed around the supply mechanism.
And a storage part with a cooling means
And a fixed rack for accommodating the supply mechanism and the storage section
And a storage and supply device having a storage unit, and a storage unit disposed opposite to a front surface of the storage and supply unit on the receiving side.
Equipped with a carry-in conveyor that moves the lett both forward and backward,
While raising and lowering the carry-in conveyor, the left and right as a whole
The elevating mechanism that is moved in both directions and the discharge side of the supply conveyor are arranged so as to face each other.
Input conveyor that moves the let in both front and back directions, and
Top and bottom to eject the stacked packages one by one from the top
Equipped with movable packing discharge height adjustment means, tilting in the front-back direction
Free dump type loading mechanism and throwing from the dump type loading mechanism
Has a discharge conveyor for receiving the empty pallets to be entered
And the dump-type throwing device, which is arranged in front of the throwing conveyor and
It accepts the above packaging that is input from the input mechanism.
Incinerator with receiving hopper and scraping means
An automatic supply facility for infectious waste packaging, which is composed of a control unit for controlling the operation of each of the above devices. 2. An automatic infectious waste packing method using the automatic infectious waste packing facility according to claim 1, wherein a plurality of infectious waste packings having the same shape are provided in a plurality of stages. Loaded package
Feed mechanism and storage device using a carry-in conveyor
On the supply conveyor and storage conveyor of the empty line of the structure,
They are stored in order from the front side to the rear side, and are thrown when the packing loading instruction is issued from the incinerator.
Moving on to the loading work, the packing group at the rear end of the supply conveyor is palletized.
Transportable in a closing configuration Bear dumping type charging mechanism in horizontal position
After inserting it, tilting the dump type loading mechanism to the front side
By moving the packing discharge height adjusting means downward,
Receiving hopper for the loaded packages one by one from the top
After that, put it on the incinerator and scrape the packed packaging.
Level it with a smoothing means, and perform the
When the let is empty, the dump type loading mechanism is turned over to the discharge side.
To discharge empty pallets to the discharge conveyor
And return the dump conveyor of the dump-type loading mechanism to the horizontal state.
This completes the above-mentioned input work, and repeats the input work,
Is now stored on the storage conveyor
By transferring the pallet
An automatic feeding method for infectious waste packages, which is characterized by filling the following packing group from the retaining section to the supply conveyor . 3. When the transported package is stored for a long time, the infectious waste is prevented from spoiling by being transported to a storage mechanism provided with a cooling means and stored. Item 2. An automatic method for supplying infectious waste packaging according to item 2.