Bag breaking device and bag breaking treatment method

Abstract

A bag breaking device for breaking a waste storage bag body uses a drum-type washing machine having: a water tank (2) for storing washing water; a bottomed cylindrical rotating tank (3) which is supported in the water tank (2) so that the axis of rotation is substantially horizontal and the rotating tank (3) can rotate freely, and which accommodates laundry; and a motor (5) for rotating the rotating groove (3), and in the bag breaking device, the inner circumferential surface of the rotating groove (3) is provided with a bag breaking knife (12). The invention further discloses a waste containing bag body treatment method using the bag breaking device.

Description

Technical Field

[0001] The invention relates to a bag breaking device for tearing a bag containing waste and a bag breaking processing method. Background Art

[0002] Conventionally, as bag breaking devices for breaking bags made of resin films containing waste, devices for tearing the bags using a rotating blade are widely known (Patent Documents 1 to 3).

[0003] The existing bag breaking device has the function of tearing the bag, but does not have the function of cleaning the waste exposed from the torn bag.

[0004] In addition, the existing bag breaking device has a completely sealed structure, and the contents will leak out when the bag is broken and pollute the surroundings, so there are problems in the treatment of infectious waste or substances that emit a foul odor.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2019-844

[0008] Patent Document 2: Japanese Patent Application Publication No. 2009-247925

[0009] Patent Document 3: Japanese Patent Application Publication No. 2008-43934 Summary of the invention

[0010] Problems to be solved by the invention

[0011] The present invention aims to provide a bag breaking device and a bag breaking treatment method using the bag breaking device, wherein the bag breaking device can break a bag containing waste and clean the waste exposed from the broken bag.

[0012] Technical means of solving problems

[0013] The gist of the present invention is as follows.

[0014] [1] A bag breaking device is a bag breaking device for breaking a waste storage bag, and

[0015] A drum-type washing machine is used, the drum-type washing machine having: a water tank for storing washing water; a bottomed cylindrical rotating tank, the rotating axis of which is supported in the water tank so as to be approximately horizontal and rotatable, and the washings are accommodated; and a motor for rotating the rotating tank, the bag breaking device is characterized in that:

[0016] A knife for breaking the bag is provided on the inner peripheral surface of the rotating tank.

[0017] [2] The bag breaking device according to [1], wherein a protrusion extending in a direction parallel to the axis of the rotating tank is provided on the inner peripheral surface of the rotating tank,

[0018] The knife is mounted on the protrusion.

[0019] [3] A method for treating a waste storage bag, comprising: using the bag breaking device according to [1] or [2] to break the waste storage bag, and then washing the waste and bag residue in the rotating tank.

[0020] [4] The method for treating waste storage bags according to [3] further comprises performing at least one of dehydration, drying, chemical treatment and heating treatment.

[0021] [5] The method for treating waste storage bags according to [4], wherein the chemical used in the chemical treatment is at least one of an oxidant, a bactericide and a cleaning agent (surfactant).

[0022] [6] The method for treating a waste storage bag according to [3], wherein the waste is used diapers.

[0023] Effects of the Invention

[0024] According to the present invention, by placing a bag containing waste into a rotating tank and rotating the rotating tank, the bag can be torn. In addition, water can be poured into the rotating tank to wash the waste or bag residue in the rotating tank (cleaning can also be performed using a cleaning agent or a surfactant). By using water containing an oxidant or a bactericide, the waste can be sterilized. In addition, by using steam or the like to increase the temperature of the washing water for treatment, sterilization can be performed.

[0025] After washing, the rotating tank can be rotated at high speed to dehydrate. In addition, by supplying hot air into the rotating tank, waste can be dried. By increasing the temperature of the hot air for heating treatment, heat sterilization can also be performed.

[0026] According to the present invention, it is unnecessary to open the bag and take out the contents.

[0027] In addition, according to the present invention, workers have almost no chance to directly contact the used contents, and the safety of the work is improved. The bag breaking rate can be above 99%, and no additional manual work is required.

[0028] According to the present invention, even odorous waste can be recycled with high quality by washing. In addition, by washing the waste, dirt of the recyclables can be removed, purity can be increased, and value during recycling can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] [ Figure 1 ] is a longitudinal sectional view of the bag breaking device of an embodiment.

[0030] [ Figure 2 ] is a three-dimensional diagram showing the installation structure of the knife. DETAILED DESCRIPTION

[0031] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiment.

[0032] Figure 1 It is a longitudinal sectional view of the bag breaking device (drum-type washing machine including the blade 12) according to the embodiment of the present invention.

[0033] exist Figure 1 In the embodiment, a water tank 2 is supported in a frame 1 via a suspension support member (not shown), and a rotating tank 3 formed into a bottomed cylindrical shape is arranged in the water tank 2. A large number of dehydration holes (not shown) are provided on the peripheral surface 3f of the rotating tank 3. In addition, a mesh-like ventilation portion is provided on the inner wall surface 3e of the rotating tank 3.

[0034] The water tank 2 and the rotating tank 3 are provided with the opening end side on the front side of the frame 1 and the bottom side on the back side of the frame 1, and are supported to be tilted downward from the horizontal direction from the front side to the back side (although not shown in the figure, the water tank 2 and the rotating tank 3 can also be supported to be substantially horizontal from the front side to the back side). The rotating tank 3 is driven by the motor 5 via the shaft 4 to rotate.

[0035] A door body 6 is provided on the frame body 1 facing the open end side of the rotating tank 3. One side of the door body 6 is supported on the frame body 1 by a hinge. A locking mechanism for locking and unlocking the other side of the door body 6 is provided on the frame body 1. By opening the door body 6, the waste storage bag can be taken out / put in relative to the rotating tank 3. A bellows 7 formed of a soft elastic body is arranged around the laundry inlet and outlet 2a of the water tank 2. When the door body 6 is closed, one end of the bellows 7 is pressed on its inner surface to prevent water from flying out of the water tank 2.

[0036] A plurality of (eg, 3 to 6) protrusions 11 are provided on the inner peripheral wall of the rotating trough 3. By rotating the rotating trough 3 at a low speed, the protrusions 11 can hook the waste storage bag or the waste drawn out therefrom and lift it upward.

[0037] The protrusion 11 is provided as a convex strip extending in a direction parallel to the rotation axis of the rotation tank 3. The protrusion 11 is provided with a knife 12 for breaking the bag.

[0038] As a water supply path for filling water into water tub 2, a water supply port 14, a water supply valve 15, a first water supply path 16, a detergent adding portion 17, and a second water supply path 18 are provided.

[0039] A drainage path 8 for draining water from the water tank 2 is connected to the bottom of the water tank 2. A drainage valve 9 for closing or opening the path is provided in the middle of the drainage path 8. When water or detergent is stored in the water tank 2 with the drainage valve 9 closed, the rotary tank 3 functions as a washing chamber.

[0040] In addition, when the drain valve 9 is opened, the water or detergent stored in the water tank 2 is discharged from the drain path 8, and the rotary tank 3 is rotated at a high speed, the contained objects are pushed to the peripheral surface 3f of the rotary tank 3 by the centrifugal force. At this time, the water contained in the contained objects is discharged from the plurality of dehydration holes provided on the peripheral surface 3f of the rotary tank 3 to between the water tank 2 and the rotary tank 3, and is discharged from the drain path 8. In this way, the rotary tank 3 also functions as a dehydration chamber.

[0041] In addition, in the rotary tank 3, the hot air is circulated and sent out by using the suction port 19, the air supply path 20, the heater 21, the air supply member 22 having a fan and a motor, and the air supply path 23. When sending out the hot air, the rotary tank 3 also functions as a drying chamber. The flow of air in the drying process is described below.

[0042] The air sucked in from the suction port 19 and blown by the air supply member 22 is heated by the heater 21 to become hot air, which is guided to the back side of the water tank 2 through the air supply path 23 and blown into the water tank 2 from the nozzle 24 provided on the back side 2e of the water tank 2. The hot air blown into the water tank 2 passes through the ventilation portion (not shown) provided on the inner wall surface 3e of the rotating tank 3 and blows onto the storage items stored in the rotating tank 3. The air from which moisture evaporates from the storage items is discharged from the dehydration holes on the peripheral surface of the rotating tank 3 to between the water tank 2 and the rotating tank 3, is guided from the suction port 19 to the air supply path 20, and reaches the air supply member 22 again. Although not shown in the figure, a dehumidification member for cooling and dehumidifying moisture evaporated from the storage items is provided in the middle of the air supply path 20 until it reaches the air supply member 22.

[0043] like Figure 2 Thus, the cross section of the protrusion 11 in the circumferential direction of the rotation groove 3 is a substantially triangular shape. More specifically, the cross section is a substantially triangular shape whose width decreases as it rises from the inner circumferential surface of the rotation groove 3 .

[0044] The knife 12 is provided in a manner of standing upright from the top of the protrusion 11 toward the axial position of the rotation groove 3. The base end side 12a of the knife 12 is fixed to the protrusion 11 by a fixing member 13 such as a bolt or a rivet. In addition, the knife 12 may be provided in a flat plate shape and mounted on the protrusion 11 by a mounting member (e.g., a pair of plates) separate from the knife 12.

[0045] The leading end side of the blade 12 in the rising direction is a sawtooth blade 12b. However, the shape of the blade may be other than the sawtooth shape, for example, a claw shape, a needle shape, etc.

[0046] In the above-described embodiment, a plurality of knives 12 are attached to one protrusion 11 at intervals, but a single long knife may be attached.

[0047] The blade 12 is preferably made of a highly corrosion-resistant metal such as stainless steel, titanium, or a titanium alloy.

[0048] In order to process the waste bag by the bag breaking device thus constructed, the door 6 is opened and the waste bag is put into the rotating tank 3. After the door 6 is closed, the rotating tank 3 is rotated by the motor 5. In this case, the rotating tank 3 can rotate in one direction or reciprocate in the forward and reverse directions.

[0049] When the rotary tank 3 is rotated, the bag is broken by the knife 12, and the contained waste is exposed to the outside of the bag. In addition, by reciprocating the rotation tank 3, the bag can be broken efficiently.

[0050] The bag breaking is carried out in a completely sealed state, so odor or waste will not leak to the outside.

[0051] In the present invention, after the bag breaking, the waste and bag residue can be taken out of the drum washing machine, but it is preferred to continue the treatment in the drum washing machine. As the treatment, the waste and bag residue can be washed using the washing function of the drum washing machine, or dehydration by rotating the rotary tank 3 at high speed, or drying using the drying function of the drum washing machine. The washing can be one of washing using a surfactant and washing with water, or a combination thereof. The washing efficiency can also be improved by injecting steam into the inside of the rotary tank 3 during washing to increase the temperature of the water, or sterilization can be performed (for example, 80°C for more than 10 minutes).

[0052] In addition, treatment with agents other than surfactants may be performed. For example, oxidation treatment or sterilization treatment using an aqueous solution of an oxidant or a sterilizing agent may be performed.

[0053] The heat sterilization treatment may be performed by increasing the temperature during the drying. The above one or more treatments may be performed repeatedly.

[0054] After the above treatment, the door 6 may be opened to take out the processed materials, and then the processed materials may be classified or processed into super absorbent polymer (SAP).

[0055] Thus, according to the present embodiment, by placing the bag containing the waste into the rotating tank 3 and rotating the rotating tank 3, the bag can be torn. In addition, the waste in the rotating tank 3 or the bag residue can be cleaned in the rotating tank 3. By using water containing an oxidant or a bactericide, the waste and the like can be sterilized. After cleaning, the rotating tank 3 can be rotated at a high speed to perform dehydration. In addition, by supplying hot air into the rotating tank 3, the waste and the like can be dried. Heat sterilization can also be performed by increasing the temperature of the hot air for heat treatment.

[0056] According to the embodiment, there is no need to break the bag and take out the contents. In addition, the operator has almost no chance of directly contacting the used contents, and the safety of the operation is improved. The bag breaking rate can be more than 99%, and no additional manual work is required. Furthermore, even odorous waste can be recycled with high quality by washing. In addition, by washing the waste, the value of recycling is improved.

[0057] The waste to be treated in the present invention may be any of infectious waste, soiled waste (eg, diapers), food waste, and the like.

[0058] The above embodiment is an example of the present invention, and the present invention may be in a form other than the above. For example, a filtering mechanism may be provided to extract a portion of the water in the water tank 2, filter it with a filter, and then return it to the water tank 2.

[0059] In the above-described embodiment, a commercially available drum-type washing machine is used, but other drum-type washing machines may be used in the present invention.

[0060] Although the present invention has been described in detail using specific embodiments, it is obvious to those skilled in the art that various modifications can be made within the scope of exhibiting the effects of the invention.

[0061] This application is based on Japanese Patent Application No. 2022-118122 filed on July 25, 2022, the entirety of which is incorporated by reference.

[0062] Description of Figure Numbers

[0063] 2: sink

[0064] 3: Rotating slot

[0065] 5: Motor

[0066] 6: Door body

[0067] 9: Drain valve

[0068] 11: Protrusion

[0069] 12: Knife

Claims

1. A bag breaking device is a bag breaking device for breaking a waste storage bag, and A drum-type washing machine is used, the drum-type washing machine having: a water tank for storing washing water; a bottomed cylindrical rotating tank, the rotating axis of which is supported in the water tank so as to be approximately horizontal and rotatable, and the washings are accommodated; and a motor for rotating the rotating tank, the bag breaking device is characterized in that: A knife for breaking the bag is provided on the inner peripheral surface of the rotating tank.

2. The bag breaking device according to claim 1, wherein: A protrusion extending in a direction parallel to the axis of the rotation groove is provided on the inner circumferential surface of the rotation groove. The knife is mounted on the protrusion.

3. A method for treating a waste storage bag, comprising: using the bag breaking device as claimed in claim 1 or 2 to break the waste storage bag, and then washing the waste and bag residue in the rotating tank.

4. The method for treating waste storage bags according to claim 3, further comprising performing at least one of dehydration, drying, chemical treatment and heating treatment.

5. The method for treating a waste storage bag according to claim 4, wherein: The chemical for the chemical treatment is at least one of an oxidant, a bactericide and a cleaning agent (surfactant).

6. The method for treating a waste storage bag according to claim 3, wherein: The waste is used diapers.

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