JP2013146695A - Medical waste disposal device and medical waste disposal method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-level medical waste disposal device and medical waste disposal method, capable of satisfying all of securement of work safety, prevention of atmospheric pollution and water contamination, preservation of natural environment, energy recycle and the like, as well as sure sterilization and volume reduction treatment.SOLUTION: In a medical waste disposal device, when supplying a plastic bag containing medical waste to a cylindrical case and compressing the medical waste with a compressing means by lowering a piston, the plastic bag containing medical is prevented from being broken due to a catch of the plastic bag in a space between the inner wall of the cylindrical case and the piston or rapid compression of the plastic bag by lowering and raising the piston repeatedly to carry out the compression progressively. In addition, when discharging a cake that has been fused, sterilized and reduced in volume by heating and compressing, a gate is fully opened, the lower surface of the heating means of the piston is lowered to within several millimeters of the upper surface of the heating means of the gate, and the cake adhered to the heating means that is joined to the piston is forcibly scraped off by closing the gate.

Description

  The present invention relates to a medical waste processing apparatus and a medical waste processing method for sterilization, detoxification, and detoxification processing of infectious medical waste generated in medical institutions such as hospitals.

  As for the treatment method of infectious medical waste, several methods have been proposed so far, such as incineration treatment, crushing chemical liquid sterilization treatment, heat sterilization treatment by autoclave, ashing treatment by microwave, and high temperature plasma treatment. However, these proposals were not sufficient due to the following problems.

  Incineration treatment, which is a typical treatment method for infectious medical waste, is characterized by the fact that only a small amount of ash remains when medical waste is incinerated, but the volume reduction rate is extremely high. A secondary combustion furnace, waste gas quenching device, electrostatic precipitator, bag filter, exhaust gas analysis monitoring device, etc. are indispensable processes, and if they are not equipped, a large amount of hydrogen chloride generated from PVC contained in medical waste Not only is there a risk of significant air pollution due to gas, but there is still a great problem from the viewpoint of environmental conservation and energy utilization in the sense that the medical waste with energy-recycling value will be inadvertently incinerated.

  As for sterilization of crushed chemical solution, pathogenic bacteria contained in medical waste may be scattered in the atmosphere when crushing medical waste, so even if you try to crush medical waste and sterilize with chemical solution, infusion tube etc. There is no guarantee that pathogens existing in the micropores can be sterilized reliably, and in the landfill site, finely crushed medical waste may be scattered by the wind into the forests and farmland. A lot of problems remain.

  Furthermore, in the heat sterilization process by autoclave, according to Pascal's law, it was thought that uniform pressure and uniform temperature could be realized in every part of the autoclave, and medical waste could be sterilized reliably. In other words, medical waste that has not been completely sterilized and is grotesque after the sterilization process is handled as it is, and there still remains a great problem from the viewpoint of the certainty of sterilization and the working environment.

  Microwave ashing is based on the principle of a household microwave oven, but not only has low processing capacity, but also chlorinated PVC waste contained in medical waste is ashed to produce hydrogen chloride gas. Since it is generated in large quantities, it is not a realistic treatment method because the waste gas treatment apparatus becomes an essential process as in the incineration process described above, as well as ensuring the corrosion resistance of the apparatus, increasing the equipment cost.

  Furthermore, for high-temperature plasma treatment, not only is advanced operation technology required to operate the equipment at temperatures as high as 3000 ° C, but a large amount of hydrogen chloride gas is generated when plasma treatment is performed on PVC waste contained in medical waste. Therefore, since the waste gas treatment apparatus becomes an essential process as in the incineration process described above as well as ensuring the corrosion resistance of the apparatus, the equipment cost increases and it cannot be said to be a realistic treatment method.

  Furthermore, in patent document 1, in order to solve the problem of the treatment method of infectious medical waste of the heat-melting method or the crushing chemical solution sterilization method, a substrate for sending the medical waste in the form of a compact cake, and on this substrate A housing constructed with a cake discharge path, an upright cylinder disposed on the housing with a medical waste inlet and a swingable pressure lid, and a medical waste constructed on the cylinder A first piston unit having a piston that compresses an object into a cake; a second piston unit having a movable plate that is constructed on the substrate and opens and closes a cylinder opening; and A medical waste detoxification treatment apparatus including an evaporation unit disposed in the above is disclosed.

  In Patent Document 2, as a bucket conveyor with an improved conveyor, one end of a base frame is supported by a drive shaft with a drive wheel attached to each end, and the other end of the base frame is driven at each end. The driven shaft on which the vehicle is mounted is supported, and one end of the drive shaft is connected to the motor via a speed reducer, and an endless belt is connected between the drive vehicle and the driven vehicle so that it can be rotated stepwise. The L-shaped partition plates are attached to the upper surface of the endless belts that face each other and attached back to back, and the side plates are attached to the upper sides of the base frame so as to be in contact with both ends of the partition plates. Discloses a bucket conveyor that is provided with a notch having a shape that matches the cross-sectional shape of the bucket formed by a pair of partition plates.

  Furthermore, in patent document 3, in order to solve the problem of the processing method of the infectious medical waste of a heat-melting system, a plurality of buckets (2) that contain a bag (P) that contains medical waste (M) The bucket conveyor unit (3) that transports while stepping in a predetermined direction, the heat sterilization unit (4, 4a) for heat sterilization of the medical waste contained in the bucket, and the heat sterilization after the heat sterilization unit In a detoxification processing apparatus comprising a compression processing unit (5) for compressing the medical waste that has been made into a cake-like product (C) and a discharge unit (7) for discharging the cake-like product from the compression processing unit, A bag body containing medical waste is accommodated in a bucket (2) located inside a side plate (9) arranged along the running direction of the conveyor part (3), and placed on the running path of the bucket conveyor part. Multiple heating with multiple small holes in the lower peripheral surface In addition to providing a trachea (23) and an exhaust pipe (25), a hot air blowing device (24) is provided in the heated air supply pipe, and the heated air supply pipe and exhaust pipe are pushed down by a hydraulic cylinder and inserted into the bag body. A medical waste detoxification device characterized in that hot air is blown from the trachea and sterilized by heating is disclosed.

  Further, in Patent Document 4, when medical waste generated from a medical institution is sterilized and reduced in volume by a heating / compression unit, the waste adheres to a heating element as a heating unit due to pressure, and is discharged. In order to solve the difficulty, the processing cylinder (4), a piston (13) with an electric heater (14) having means for moving up and down inside the processing cylinder (4), and a lower end opening of the processing cylinder (4) In a medical waste treatment apparatus comprising a gate (16) with an electric heater (17) having means for opening and closing the medical waste, the medical waste is sterilized and reduced in volume by heating and compression, and then the gate (16) is fully opened. The lower end surface of the electric heater (14) of the piston (13) is lowered to the upper end surface of the electric heater (17) of the gate (16) to fully close the gate (16), and the electric heat heater of the piston (13). Treated discharge mechanism of the medical waste disposal apparatus characterized by dropping mechanically scraped processing adhering to the chromatography (14) is disclosed.

JP-A-7-88140 Japanese Utility Model Publication No. 6-42819 JP 2001-252345 A Utility Model Registration No. 3126377 Specification

  The present invention solves various problems inherent in the above-described medical waste treatment apparatus and medical waste treatment method, and further improves the conventional medical waste treatment apparatus and medical waste treatment method to ensure To provide advanced medical waste treatment methods and medical waste treatment equipment that can satisfy not only sterilization and volume reduction treatment but also occupational safety, air and water pollution prevention, conservation of natural environment, energy recycling, etc. Let it be an issue.

  In order to solve the above-mentioned problem, the invention according to claim 1 is the medical waste treatment apparatus, wherein the heating means and the opening / closing means are provided at the lower part of the vertical cylindrical housing having upper and lower ends open. Medical device comprising a gate, a piston having a heating means and a compression means by raising and lowering at the upper part of the casing, and a hatch having an opening / closing means for opening and closing a side opening provided on the side of the casing. In a waste disposal device, when a medical bag containing medical waste is supplied to a cylindrical housing and the piston is lowered by the compression means to compress the medical waste, the piston is lowered and raised repeatedly in a stepwise manner. This prevents the plastic bag containing medical waste from being caught in the gap between the inner wall of the cylindrical housing and the piston and the plastic bag from rupturing due to sudden compression. When discharging the cake obtained It is possible to forcibly scrape the cake that is firmly attached to the heating means that is tightly connected to the piston by lowering the bottom of the gate and lowering the lower surface of the heating means of the piston to a distance of several millimeters of the upper surface of the heating means of the gate. It is possible to do.

  According to a second aspect of the present invention, in the medical waste treatment apparatus according to the first aspect, a nozzle capable of ventilating the inside of the housing is further provided on the upper portion of the vertical cylindrical housing, and the lower portion of the housing A nozzle that can ventilate the upper part of the gate is further provided on the outer upper part of the gate opening and closing means that opens and closes the gas, and a blower connected to the nozzle sucks gas generated in the process of heating and compressing medical waste, and discharges the blower. And a deodorizing means for deodorizing gas and a filtering means for filtering pathogenic bacteria.

  The invention according to claim 3 is the medical waste treatment apparatus according to claim 1 or claim 2, wherein the partition plate with a bottom having a constant interval and a constant height provided with traveling means capable of traveling in the conveyor traveling direction; Medical disposal from the side guide plate opening at the end of the bucket conveyor direction, perpendicular to the bucket conveyor, to the bucket conveyor that forms buckets with side guide plates of a certain height arranged on the conveyor frames on both sides of the conveyor running direction It further includes an automatic supply device equipped with a pusher mechanism for transferring to the opening on the side of the housing of the product processing device, and a medical bag is loaded with a plastic bag, polypail or can containing medical waste on the bucket of the bucket conveyor. Each time a medical waste treatment cycle is completed in the waste treatment device, the bucket conveyor advances and stops one bucket at a time, and is loaded into the bucket. Medical waste that is automatically supplied to the medical waste disposal device by the pusher mechanism, and when the bucket conveyor is abnormal, the bucket conveyor is continuously advanced or retracted and loaded onto the bucket of the bucket conveyor It is characterized in that an object can be taken out.

  According to a fourth aspect of the present invention, in the medical waste treatment apparatus according to any one of the first to third aspects, hot air is blown and exhausted at a lower portion of a movable plate provided with an elevating means capable of moving up and down in the vertical direction. Further comprising a medical waste preheating device configured by connecting a piercing nozzle and a hot air generating device having a hot air temperature adjusting means capable of adjusting the hot air temperature, by connecting the piercing nozzle and in a bucket of a bucket conveyor The plastic bag and medical pail containing medical waste loaded on the pierce the nozzle and pierce the nozzle, reduce the cycle time by preheating the medical waste by blowing hot air from the hot air generator, and can be moved up and down Deodorizing means and pathogen for covering the movable plate with means with a cover with exhaust nozzle and deodorizing gas to the exhaust nozzle and exhaust port of the cover The a suction port connected by piping of the filtration means and the equipped blower for filtering, characterized in that the exhaust gas generated from the nozzle piercing exhaust are Tightened on the movable plate can deodorized and filtered.

  According to a fifth aspect of the present invention, in the medical waste treatment apparatus according to the fourth aspect, the medical waste is preheated and sterilized with only hot air in the medical waste preheating device, and is not passed through the medical waste treatment device. The medical waste is discharged, and the contents of the medical waste can be manually separated into a vinyl chloride system and a non-vinyl chloride system.

  A sixth aspect of the present invention is the medical waste treatment apparatus according to any one of the first to fifth aspects, wherein the hot air blowing piercing nozzle is tightly coupled to a movable plate having an elevating means that can be moved up and down in the vertical direction. A nitrogen gas supply pipe having an electromagnetic valve that can be electrically opened and closed, and a exhaust gas piercing nozzle further provided with a thermometer for detecting an abnormal rise in exhaust gas temperature, When the oxygen scavenger mixed in medical waste is ignited by blowing hot air into the polypail and a fire occurs, an abnormal temperature rise of the exhaust gas is detected with a thermometer, and the solenoid valve of the nitrogen gas supply pipe Is opened in an electrically interlocking manner, and a fire generated in the plastic bag and the polypeel can be automatically digested by blowing nitrogen gas into the plastic bag and the polypeel.

  The invention according to claim 7 is the medical waste treatment apparatus according to any one of claims 4 to 6, further comprising a hole for a photoelectric switch on the same axis on both sides of the side guide plate of the bucket conveyor, and In addition, a pair of photoelectric switches are further arranged at positions where light can be transmitted through the holes of the side guide plate, and the photoelectric switches detect the presence or absence of a plastic bag, polypeel or can containing medical waste in the bucket of the bucket conveyor. The medical waste preheating device, the bucket conveyor and the medical waste processing device can be automatically and sequentially stopped when the predetermined number of cycles have been completed.

  The invention according to claim 8 is the medical waste treatment apparatus according to any one of claims 1 to 7, wherein a side hole is further provided in the lower part of the vertical cylindrical casing, and the insertion / removal is possible in the hole. A fork mechanism provided with a means, and when a polypail or can containing medical waste is supplied from a side opening of the side of the vertical cylindrical casing, the fork of the fork mechanism is advanced into the casing. A polypeel or can is received on the fork, the fork is retracted after the side opening hatch is closed, and the polypeel or can can be loaded on the gate at the bottom of the casing without falling down.

  According to a ninth aspect of the present invention, in the medical waste treatment apparatus according to any one of the fourth to eighth aspects, the frictional blower is further provided in the hot air generating device of the medical waste preheating device, whereby the friction type blower is provided. It is characterized in that the air can be preheated with the frictional heat of the blower and the electric energy for heating the air of the hot air generator can be reduced.

  According to a tenth aspect of the present invention, in the medical waste treatment apparatus according to any one of the fourth to ninth aspects, the medical waste preheating apparatus is tightly coupled to a movable plate provided with an elevating means that can be moved up and down. In the process of preheating by blowing the hot air blowing and exhausting piercing nozzle into a plastic bag or a polypeel, the movable plate is always moved up and down to uniformly heat the medical waste in the polybag or the polypeel. .

  The invention according to claim 11 is the medical waste treatment apparatus according to any one of claims 1 to 10, wherein the melt sterilization is reduced by heating and compressing the medical waste below the gate at the bottom of the vertical cylindrical housing. In addition, a slat for receiving the cake obtained is placed further, and a push plate that can hold a certain distance from the slats is tightly connected to the gate, and a push plate that is tightly attached to the gate when the gate opens and the fallen cake closes. The cake can be automatically discharged outside.

  The invention according to claim 12 is the medical waste treatment apparatus according to any one of claims 4 to 11, wherein the medical waste contained in the plastic bag, the polypeel or the can is discharged from the medical waste. A bar code or quick response code is further pasted for each department, and when the medical waste is loaded on the bucket of the bucket conveyor, the bar code or quick response code is read, and the medical waste is melt-sterilized and reduced in volume by heating and compression. After processing, the discharge source information and the medical waste preheating device and the processing conditions of the medical waste processing device are automatically written on the electronic tag on the cake obtained by processing, and the electronic tag is attached to the cake by the IC tag pasting device It is characterized by being able to prove that the medical waste has been properly treated by applying it automatically.

  The invention according to claim 13 is the medical waste treatment device according to any one of claims 4 to 12, wherein the bucket conveyor, the medical waste preheating device and the medical waste treatment device are electrically linked, A programmable sequencer and a touch panel display that is electrically linked to the programmable sequencer can be integratedly controlled.

  According to a fourteenth aspect of the present invention, in the medical waste treatment method, the step of supplying the plastic bag containing the medical waste into the vertical cylindrical housing having both upper and lower ends opened, and the heating means on the upper portion of the housing When the medical waste is compressed by lowering the piston with the compression means of the piston including the compression means by lifting and lowering, the plastic bag containing the medical waste is repeatedly compressed stepwise to compress the medical waste. Prevents the bite into the gap between the inner wall of the cylindrical casing and the piston and the bursting of the plastic bag due to sudden compression, and when discharging the cake obtained by melt sterilization and volume reduction by heat compression. Fully open the gate comprising the heating means and the opening / closing means at the bottom of the body casing, and lower the lower surface of the piston heating means to a distance of several millimeters above the heating means of the gate and fix it to the heating means tightly connected to the piston Shi And having a step of scraping the cake are forced by closing the gate.

  According to a fifteenth aspect of the present invention, in the medical waste treatment method according to the fourteenth aspect, a nozzle provided in the upper part of the vertical cylindrical case and capable of ventilating the inside of the case, and a lower part of the case are provided. A step of sucking the gas generated in the process of heating and compressing medical waste by a blower connected to a nozzle capable of ventilating the upper part of the gate on the outer upper part of the gate opening and closing means to be opened and closed, and gas by the deodorizing means of the discharge outlet of the blower The method further includes the step of deodorizing and the step of filtering pathogenic bacteria by the filtering means of the discharge port of the blower.

  The invention according to claim 16 is the medical waste disposal method according to claim 14 or claim 15, wherein the bottomed partition plate having a constant interval and a constant height provided with traveling means capable of traveling in the conveyor traveling direction; A step of loading a plastic bag, a polypeel or a can containing medical waste on a bucket of a bucket conveyor that forms buckets by side guide plates having a certain height arranged on conveyor frames on both sides of the conveyor traveling direction, and medical disposal The stage where the bucket conveyor advances and stops by one bucket each time the treatment cycle of medical waste is completed in the waste disposal apparatus, and the side guide plate opening at the end of the bucket conveyor traveling direction for the medical waste loaded in the bucket By the pusher mechanism of the automatic supply device, which has a pusher mechanism for transferring to the opening on the side of the housing of the medical waste treatment apparatus. A stage for automatically supplying the medical waste treatment apparatus, and a stage where the bucket conveyor can be continuously advanced when the bucket conveyor is abnormal, or the medical waste loaded on the bucket of the bucket conveyor can be taken out. It further has these.

  The invention according to claim 17 is the medical waste treatment method according to any one of claims 14 to 16, wherein the poly bag and the poly pail containing the medical waste loaded in the bucket of the bucket conveyor are used. A hot air generating device having hot air blowing and exhaust piercing nozzles tightly coupled to a lower part of a movable plate having lifting means that can be moved up and down, and having hot air temperature adjusting means capable of adjusting the piercing nozzle and hot air temperature; A stage for reducing the cycle time by preheating the medical waste by blowing hot air from the hot air generator, and elevating means capable of moving up and down vertically. Deodorizing means and pathogen for covering the movable plate with a cover with exhaust nozzle and deodorizing gas to the exhaust nozzle and exhaust port of the cover A step of deodorizing and filtering the exhaust gas generated from the exhaust piercing nozzle tightly connected to the movable plate by connecting a suction port of a blower provided with a filtering means for filtering It is characterized by.

  The invention according to claim 18 is the medical waste treatment method according to claim 17, wherein the medical waste preheating device heat sterilizes the medical waste with only hot air, and the medical waste treatment device is used. And a step of discharging the medical waste from the bucket conveyor, wherein the contents of the medical waste can be manually separated into a vinyl chloride system and a non-vinyl chloride system.

  The invention according to claim 19 is the medical waste treatment method according to any one of claims 14 to 18, wherein the oxygen is mixed in the medical waste by blowing hot air into the plastic bag and the polypeel. When the agent ignites and a fire occurs, the exhaust piercing nozzle detects the abnormal temperature rise of the exhaust gas with a thermometer to detect the abnormal temperature rise of the exhaust gas, and the lifting means that can move up and down vertically The solenoid valve of the nitrogen gas supply pipe, which has a solenoid valve that can be electrically opened and closed, is electrically connected to the piercing nozzle for blowing hot air tightly connected to the movable plate, and the nitrogen gas is opened in the plastic bag and the polypail. The method further comprises the step of automatically digesting a fire generated in the plastic bag and the polypeel by blowing.

  According to a twentieth aspect of the present invention, in the medical waste treatment method according to any one of the seventeenth to nineteenth aspects, the light is supplied to the photoelectric switch holes provided on both sides of the side guide plate of the bucket conveyor on the same axis. A pair of photoelectric switches arranged in a position where the light can pass through is used to detect the presence / absence of a plastic bag, polypeel or can containing medical waste in the bucket of the bucket conveyor, and when the treatment is completed for a predetermined number of cycles. And a step of automatically and sequentially stopping the material preheating device, the bucket conveyor, and the medical waste treatment device.

  The invention according to claim 21 is the medical waste treatment method according to any one of claims 14 to 20, wherein a polypail containing medical waste from a side opening of the side of the vertical cylindrical housing or When supplying cans, the fork of the fork mechanism equipped with insertion / removal means that can be inserted / removed in the side hole provided in the lower part of the vertical cylindrical casing is advanced into the casing to place the polypeel or cans on the fork. And a step of retracting the fork after the side opening hatch is closed and loading the polypeel or can on the gate heating means at the bottom of the casing without falling down. To do.

  According to a twenty-second aspect of the present invention, in the medical waste disposal method according to any one of the seventeenth to twenty-first aspects, air is generated by frictional heat of a frictional blower provided in a hot air generator of the medical waste preheating device. And a step of reducing electric energy for air heating of the hot air generator.

  According to a twenty-third aspect of the present invention, in the medical waste treatment method according to any one of the seventeenth to twenty-second aspects, the medical waste preheating device is tightly coupled to a movable plate provided with an elevating means that can be moved up and down. In the process of preheating by blowing the hot air blowing and exhausting piercing nozzle into the plastic bag or the polypeel, the movable plate always moves up and down to further heat the medical waste in the plastic bag or the polypeel evenly. It is characterized by.

  The invention according to claim 24 is the medical waste treatment method according to any one of claims 14 to 23, wherein the cake is tightly connected to the gate when the gate is closed when the gate is opened and the cake is dropped. There is further a stage in which the cake can be automatically discharged to the outside by a slat for receiving cake obtained by melting and sterilization reduction by heating compression of medical waste under the gate at the bottom of the housing and a push plate capable of maintaining a certain interval. It is characterized by that.

  According to a twenty-fifth aspect of the present invention, in the medical waste treatment method according to any one of the seventeenth to twenty-fourth aspects, when the medical waste is loaded on the bucket of the bucket conveyor, the plastic bag, the polypail, or the can After reading the barcode or quick response code affixed to each medical department that is the source of the medical waste into the medical waste that has entered, and after the medical waste is melt sterilized and reduced by heat compression, Discharge source information, medical waste preheating device and medical waste processing device processing conditions etc. are automatically written on the electronic tag on the cake obtained by processing, and the electronic tag is automatically pasted on the cake by the IC tag pasting device And a step of proving that the medical waste has been properly treated.

  The field invention according to claim 26 is the medical waste treatment method according to any one of claims 17 to 25, wherein the bucket conveyor, the medical waste preheating device and the medical waste treatment device are electrically linked, The method further includes a step that can be integratedly controlled by a programmable sequencer and a touch panel display that is electrically linked to the programmable sequencer.

  According to the present invention, infectious medical waste can be heat-compressed and reliably melt sterilized and reduced in volume. In addition, since the operation is simple without worrying about environmental pollution, this device can be installed in hospitals and infectious medical waste can be treated in-hospital. It is possible to completely eliminate the risk of the hospital being charged with the responsibility of the exhauster by entrusting sexual medical waste treatment and illegal disposal by the processing company, and fulfill the social responsibility as a hospital. Furthermore, the cake obtained by processing infectious medical waste can be recycled as a blast furnace reducing material for steelworks or fuel for a cement factory, and the best medical waste processing equipment from the viewpoint of resource energy As a result, it has the effect of greatly contributing to society.

  In the inventions according to claims 1 and 14, since the plastic bag containing medical waste can be heated and compressed stepwise by repeated lowering and raising of the piston, the plastic bag containing medical waste is medical. Because the plastic bag is heated and compressed while gradually softening with the waste, even if the plastic bag is compressed and the internal pressure rises, the air in the plastic bag can be compressed while exhausting properly when the piston is raised, so the plastic bag is compressed rapidly. The trouble that the plastic bag bursts or the plastic bag is bitten between the inner wall of the cylindrical housing and the piston is completely eliminated. Furthermore, also in the discharge process at the end of the heating and compression process, the piston is heated by lowering the lower surface of the heating means of the piston to a distance of several millimeters after the gate opens the cake fixed to the heating means of the piston. Since the cake fixed to the means can be forcibly scraped off, the trouble that the cake cannot be discharged is completely solved, and the reliability of the cake discharging operation can be greatly improved.

  In the inventions according to claims 2 and 15, the waste gas generated when the medical waste is melt sterilized and reduced by heat compression is completely exhausted by forcibly ventilating the inside of the cylindrical housing and the upper part of the gate. Because it can be deodorized and sterilized, the room where the medical waste treatment equipment is installed has dramatically improved the clean level compared to hospital rooms, etc., and can provide a safe and comfortable working environment. Play.

  In the inventions according to claims 3 and 16, since plastic bags, polypallets and cans containing medical waste can be automatically supplied, not only can the labor of medical waste disposal be saved, Even when there is an abnormality in the medical waste processing apparatus, the medical waste on the bucket conveyor can be promptly collected, so that the workability for troubleshooting is greatly improved.

  In the inventions according to claims 4 and 17, not only the medical waste can be shortened in cycle time by the preheating means, but also the deodorization is completely achieved by forced ventilation of the waste gas from the medical waste preheating device.・ Because it can be sterilized, it is possible to make the medical waste treatment device intrinsically safe, and the room where the medical waste treatment device is installed has a dramatically improved level of cleanliness than hospital rooms. As a result, it is possible to provide a safe and comfortable working environment.

  In the inventions according to claim 5 and claim 18, since the PVC medical waste of the troubled person contained in the sterilized medical waste can be completely separated, the sterilized waste from which the PVC waste is removed Has an effect that energy recycling can be immediately performed by pulverization or the like.

  In the inventions according to claims 6 and 19, the oxygen scavenger of the confectionery brought by the visitor of the patient is mixed in the medical waste, and the oxygen scavenger is ignited in the preheating process and a fire is generated. In addition, the thermometer provided in the exhaust piercing nozzle can immediately detect the abnormal temperature rise of the exhaust gas, and the fire can be extinguished by blowing nitrogen gas into the plastic bag and polypail containing medical waste. It is possible to evolve into an intrinsically safe medical waste treatment apparatus.

  In the inventions according to claims 7 and 20, until now, the operator has visually checked the presence or absence of medical waste on the bucket conveyor and manually stopped the medical waste processing apparatus. Since the medical waste treatment apparatus can be automatically stopped by electrical interlocking with the switch and the sequencer, there is an effect that drastic labor saving is possible.

  In the inventions according to claim 8 and claim 21, when the waste that has a smaller outer dimension than the cylindrical casing and enters the cans, such as cans, is supplied to the medical waste treatment apparatus, Since cans are placed on the forks protruding inside the casing and the forks are retracted after the hatch is closed, the posture of the cans can be stabilized, and cans can be reliably compressed from above the cans. There is an effect that the problem that the medical waste contained therein is scattered inside the cylindrical housing can be solved.

  In the inventions according to claims 9 and 22, since the air for preheating the medical waste can be preheated by the air friction in the friction blower, the electrical energy for heating the air with the hot air generator The effect that it can reduce significantly is produced.

  In the inventions of claim 10 and claim 23, the piercing nozzle constantly repeats the raising and lowering operation while the medical waste is preheated by piercing the plastic bag and polypeel containing medical waste and piercing the nozzle. Since the medical waste contained in the plastic bag and the polypeel can be heated evenly, the reliability of the preheating operation can be greatly improved.

  In the inventions according to claims 11 and 24, the cake that has been subjected to melt sterilization and volume reduction treatment by heat compression can be surely sequentially discharged out of the machine by a push plate that is tightly coupled to the gate. Has the effect of becoming.

  In the inventions according to claims 12 and 25, since the discharge source of the processed cake, the processing conditions, etc. can be clarified, if the medical waste is heated and compressed by the apparatus of the present invention, the medical waste is illegal. The dumping problem can be solved completely, and the effect of greatly contributing to environmental maintenance is achieved.

  In the inventions according to claims 13 and 26, the medical waste treatment apparatus of the present invention can be controlled not only in an integrated manner, but also the lifetime and maintenance time of mechanical parts constituting the medical waste treatment apparatus. It also has the effect that it can be managed.

These are front views of the medical waste disposal apparatus of the present invention. These are side views of the medical waste disposal apparatus of the present invention. These are the side views of the bucket conveyor and medical waste preheating apparatus of this invention. These are the front views at the time of connecting the automatic supply apparatus and medical waste processing apparatus for supplying medical waste from the bucket conveyor of this invention to the medical waste processing apparatus. FIG. 2 is a front view of the medical waste preheating apparatus of the present invention. FIG. 2 is a system diagram of a deodorization / sterilization apparatus of the medical waste treatment apparatus of the present invention. These are the deodorization and sterilization apparatus system | strain diagram of the medical waste preheating apparatus of this invention. These are the piping system diagrams of the medical waste preheating apparatus of this invention.

Embodiments of the present invention will be described below.
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the drawings, the same or similar components are denoted by common reference numerals.

  Examples of the present invention will be described. Referring to FIGS. 1 and 2, a gate 2 having a heating means 2a and an opening / closing means 2b in a lower opening 1b at the bottom of a vertical cylindrical casing 1a open at both upper and lower ends, A piston 3 having a piston heating means 3a as a heating means and a piston raising / lowering means 3b as a compression means by raising and lowering, and a side opening 1d provided on the side of the housing 1a. There is disclosed a medical waste treatment apparatus 1 constituted by a hatch 4 provided with a hatch opening / closing means 4a which is an opening / closing means for opening and closing the door. When the plastic bag containing medical waste is supplied to the cylindrical housing 1a and the piston 3 is lowered by the piston lifting / lowering means 3b which is the compression means to compress the medical waste, the piston 3 is repeatedly lowered and raised. By compressing the plastic bag, the plastic bag containing the medical waste is prevented from being caught in the gap between the inner wall of the cylindrical housing 1a and the piston 3 and the plastic bag being ruptured by rapid compression. When discharging the cake obtained by melt sterilization and volume reduction by heat compression, the gate 2 is fully opened and the lower surface of the piston heating means 3a, which is the heating means of the piston 3, is a distance of several millimeters of the upper surface of the heating means 2a of the gate 2. The cake fixed to the piston heating means 3a which is the heating means which is lowered to the piston 3 can be forcibly scraped off by closing the gate 2.

When this is viewed from the viewpoint of the medical waste treatment method, a stage in which a plastic bag containing medical waste is supplied to the vertical cylindrical casing 1a that is open at both upper and lower ends, The piston 3 is lowered by the piston lifting / lowering means 3b which is the compression means of the piston 3 provided with the piston heating means 3a which is the heating means and the piston lifting / lowering means 3b which is the compression means by raising and lowering in the upper opening 1c, and the medical waste is discharged. When compressing, the piston 3 is lowered and raised repeatedly and compressed stepwise, so that the plastic bag containing the medical waste is caught in the gap between the inner wall of the cylindrical housing 1a and the piston 3 and the plastic bag is A stage for preventing bursting due to sudden compression, and a heating means 2a and an opening / closing means for the lower opening 1b at the lower part of the casing 1a when discharging the cake obtained by melt sterilization and volume reduction by heating compression. Game with And a piston heating means which is a heating means which is connected to the piston 3 by lowering the lower surface of the piston heating means 3a which is a heating means of the piston 3 to a distance of several millimeters of the upper surface of the heating means 2a of the gate 2 The cake sticking to 3a can be forcibly scraped off by closing the gate 2.
In addition, since the specific structure of the medical waste processing apparatus 1 is explained in detail in Patent Document 1, it will not be described further.

  Thereby, the plastic bag containing the medical waste can be heated and compressed stepwise by repeating the lowering and raising of the piston 3, and the plastic bag containing the medical waste is heated and compressed while being gradually softened together with the medical waste, Even if the plastic bag is compressed and the internal pressure rises, the plastic bag can be compressed while properly exhausting air when the piston is raised. Therefore, the plastic bag may burst due to sudden compression, or the plastic bag may be the inner wall of the cylindrical housing 1a. The trouble of biting between the piston 3 and the piston 3 is completely eliminated. Further, also in the discharging process at the end of the heating and compression process, the gate 2 opens the lower surface of the piston heating means 3a which is the heating means of the piston 3 after the gate 2 opens the cake fixed to the piston heating means 3a which is the heating means of the piston 3. The heating means 2a can be lowered to a distance of several millimeters on the upper surface of the heating means 2a and the cake fixed to the piston heating means 3a, which is the heating means of the piston 3, can be forcibly scraped off. The reliability of the cake discharge operation can be dramatically improved.

  Next, another embodiment of the present invention will be described. With reference to FIG. 1, FIG. 2 and FIG. 6, a nozzle 5a capable of ventilating the inside of the casing 1a is further provided in the upper opening 1c at the top of the casing of the vertical cylindrical casing 1a. Further, a nozzle 5b capable of ventilating the upper part of the gate 2 is further provided on the gate cover 5 outside the gate driving means 2b which is a gate opening / closing means for opening and closing the lower opening 1b at the lower part of the casing. And the gas generated in the process of heating and compressing medical waste by the blower 5c connected to the nozzles 5a and 5b by piping is sucked, and the deodorizing means 5d for deodorizing the gas at the discharge port of the blower 5c and the pathogenic bacteria are filtered. And a filtering means 5e.

  Looking at this from the viewpoint of the medical waste treatment method, the nozzle 5a capable of ventilating the inside of the casing 1a provided in the upper opening 1c at the top of the casing of the vertical cylindrical casing 1a, and the casing Medical waste is heated and compressed by a blower 5c piped to a nozzle cover 5b that can ventilate the upper part of the gate 2 on the gate cover 5 outside the gate driving means 2b that is a gate opening and closing means for opening and closing the lower opening 1b at the lower part of the body. A step of sucking the gas generated in the process, a step of deodorizing the gas by the deodorizing means 5d of the discharge port of the blower 5c, and a step of filtering pathogenic bacteria from the filtering means 5e of the discharge port of the blower 5c. .

  As a result, the waste gas generated when melting and reducing the volume of medical waste by heat compression can be completely deodorized and sterilized by forcibly ventilating the inside of the cylindrical housing 1a and the upper part of the gate 2. The room in which the material processing apparatus 1 is installed has a dramatically improved clean level than a hospital room in a hospital, and can provide a safe and comfortable working environment.

  Furthermore, another embodiment of the present invention will be described. Referring to FIGS. 3 and 4, bottom-partition plates 6 a having constant intervals and constant height, and conveyor frames on both sides of the conveyor 6 in the traveling direction, including conveyor driving means 6 c that are traveling means capable of traveling in the traveling direction of the conveyor 6. Medical waste disposal from the side guide plate opening 6d orthogonal to the bucket conveyor 6 and at the end in the traveling direction of the bucket conveyor 6 is formed on the bucket conveyor 6 that forms a bucket by a side guide plate 6b of a certain height disposed above. An automatic supply device comprising a push plate 7a, a slide guide 7b, a chute 7c, a drive motor 7d, a timing belt 7e, and a connecting metal fitting 7f, which is a pusher mechanism for transferring to the housing side opening 1d of the device 1. 7 is further provided. Each time the medical waste processing apparatus 1 completes the medical waste processing cycle, the bucket conveyor 6 advances by one bucket every time the medical waste processing apparatus 1 completes a medical waste processing cycle. The medical waste loaded in the bucket is automatically supplied to the medical waste treatment apparatus 1 by the pusher mechanism, and when the bucket conveyor 6 is abnormal, the bucket conveyor 6 is continuously advanced or retracted. The medical waste loaded on the bucket of the bucket conveyor 6 can be taken out.

From the viewpoint of the medical waste treatment method, the partition plate 6a having a bottom with a constant interval and a constant height provided with a conveyor driving means 6c which is a traveling means capable of traveling in the traveling direction of the conveyor 6, and the conveyor 6 A stage in which a plastic bag, a polypeel or a can containing medical waste is loaded on the bucket of the bucket conveyor 6 which forms a bucket by side guide plates 6b of a certain height arranged on the conveyor frames on both sides in the running direction; Each time the treatment cycle of medical waste is completed in the waste treatment apparatus 1, the bucket conveyor 6 advances and stops one bucket at a time, and the medical waste loaded in the bucket is moved to the side at the end of the bucket conveyor 6 in the traveling direction. The push plate 7a, which is a pusher mechanism for transferring from the guide plate opening 6d to the housing side opening 1d of the medical waste treatment apparatus 1, A stage of automatic supply to the medical waste treatment apparatus 1 by a pusher mechanism of an automatic supply apparatus 7 including a guide 7b, a chute 7c, a drive motor 7d, a timing belt 7e, and a connecting bracket 7f, and when the bucket conveyor 6 is abnormal It is possible to take out the medical waste loaded on the buckets of the bucket conveyor 6 by continuously moving the bucket conveyor 6 forward or backward.
In addition, since the specific structure of the bucket conveyor 6 is explained in full detail in patent document 2, it does not explain any more.

  As a result, the plastic bag, the polypeel and the cans containing the medical waste can be automatically supplied, so that not only can the labor of the medical waste treatment work be saved, but also when the medical waste medical treatment device 1 for the medical waste is abnormal, the bucket Since the medical waste on the conveyor 6 can be promptly collected, the workability for troubleshooting is dramatically improved.

  Another embodiment of the present invention will be described. Referring to FIGS. 5 and 8, hot air blowing and exhaust piercing nozzles 8c and 8d are tightly coupled to a lower portion of a movable plate 8a having a driving means 8e which is an elevating means that can be moved up and down, and the piercing nozzle The medical waste preheating device 8 is further provided by connecting the hot air generator 8c and 8d with a hot air generator 8h having a hot air temperature adjusting means capable of adjusting the hot air temperature. The plastic bag and the polypail containing the medical waste loaded in the bucket of the bucket conveyor 6 are stabbed into the nozzles 8c and 8d, and the cycle time is shortened by preheating the medical waste by blowing hot air from the hot air generator, Further, a deodorizing means for covering the periphery of the movable plate 8a provided with an elevating means that can be moved up and down with a cover 9 with an exhaust nozzle 9a and deodorizing gas to the exhaust nozzle 9a and the exhaust port of the cover 9 Exhaust piercing nozzles 8c, 8d connected to the movable plate 8a by pipe connection to a suction port of a blower 9b having a deodorizing filter 9c and a sterilizing filter 9d as a filtering means for filtering pathogens The exhaust gas generated from the odor can be deodorized and filtered.

When viewed from the viewpoint of the medical waste treatment method, this is a drive that is an elevating means capable of moving up and down in the vertical direction to the polybag and the polypail containing the medical waste loaded in the bucket of the bucket conveyor 6. An air heater 8h, which is a hot air temperature adjusting means capable of adjusting the hot air temperature and the piercing nozzles 8c, 8d, is connected to the lower portion of the movable plate 8a provided with the means 8e. Piercing the piercing nozzles 8c and 8d of the medical waste preheating device 8 constituted by connecting the hot air generating device with the pipe, and shortening the cycle time by preheating the medical waste by blowing hot air from the hot air generating device; The cover 9 with the exhaust nozzle 9a covers the periphery of the movable plate 8a provided with the driving means 8e which is an elevating means capable of moving up and down. And a suction port of an air blower 9b having a deodorizing filter 9c as a deodorizing means for deodorizing gas and a sterilizing filter 9d as a filtering means for filtering pathogens at the exhaust nozzle 9a By connecting, the exhaust gas generated from the exhaust piercing nozzles 8c and 8d tightly connected to the movable plate 8a can be deodorized and filtered.
The specific configuration of the medical waste preheating device 8 is described in detail in Patent Document 3 and will not be described further.

  Thereby, not only can the medical waste be shortened in cycle time by the preheating means, but can be completely deodorized and disinfected by forced ventilation of the waste gas from the medical waste preheating device. Thus, the room in which the medical waste treatment apparatus 1 is installed has a significantly improved clean level than a hospital room in a hospital, and a safe and comfortable working environment can be provided.

  Furthermore, another embodiment of the present invention will be described. Referring to FIG. 3, medical waste is preheated only with hot air in medical waste preheating device 8, and medical waste is discharged from bucket conveyor 6 without passing through medical waste processing device 1. Can be manually separated into PVC and non-PVC.

  From the viewpoint of the medical waste treatment method, the medical waste preheating device 8 heat sterilizes the medical waste with only hot air, and the bucket conveyor 6 without passing through the medical waste treatment device 1. And discharging the medical waste from the container, and the contents of the medical waste can be manually separated into a vinyl chloride system and a non-vinyl chloride system.

  As a result, it is possible to completely separate the PVC-based medical waste of the troubled person contained in the sterilized medical waste, so that the sterilized waste from which the PVC-based waste has been removed can be instantly recycled by crushing and other means. Become.

  Another embodiment of the present invention will be described. 5 and 8, an electromagnetic valve 10b that can be electrically opened and closed with a hot air blowing piercing nozzle 8c, 8d that is tightly coupled to a movable plate 8a that is provided with a driving means 8e that is a lifting means that can be moved up and down. Further connecting the nitrogen gas supply pipe with Further, the exhaust piercing nozzle 8d is further provided with a temperature detector 10a which is a thermometer for detecting an abnormal temperature rise of the exhaust gas, and is mixed into medical waste by blowing hot air into the plastic bag and the polypeel. When the oxygen scavenger ignites and a fire occurs, the temperature detector 10a, which is a thermometer, detects an abnormal temperature rise in the exhaust gas, and the solenoid valve 10b of the nitrogen gas supply pipe opens electrically in conjunction with it, By blowing nitrogen gas from the nitrogen cylinder 10 into the plastic bag and the polypeel, the fire generated in the plastic bag and the polypeel can be automatically digested.

  From the viewpoint of the medical waste treatment method, when oxygen scavenger mixed in medical waste is ignited by injecting hot air into the plastic bag and polypeel, The piercing nozzle 8d has a stage for detecting an abnormal temperature rise of the exhaust gas by a temperature detector 10a that is a thermometer for detecting an abnormal temperature rise of the exhaust gas, and a drive means 8e that is a lifting means that can be moved up and down in the vertical direction. A solenoid valve 10b of a nitrogen gas supply pipe having a solenoid valve 10b that can be electrically opened and closed at a hot-air blowing stab nozzle 8c, 8d tightly coupled to the movable plate 8a that is electrically opened, And having a stage capable of automatically digesting a fire generated in the polybag and the polypel by blowing nitrogen gas from the nitrogen cylinder 10 into the polypel.

  Thus, even if the oxygen scavenger of the confectionery brought by the visitor of the patient is mixed into the medical waste, and the oxygen scavenger ignites in the preheating process and a fire occurs, the thermometer provided in the exhaust piercing nozzle 8d Since the temperature detector 10a, which is 1, immediately detects an abnormal temperature rise in the exhaust gas, the fire can be extinguished by blowing nitrogen gas into a plastic bag and a polypail containing medical waste. A safe medical waste treatment apparatus 1 can be obtained.

  Furthermore, another embodiment of the present invention will be described. Referring to FIG. 3, photoelectric switch holes 11 are further provided on the same axis on both sides of the side guide plate 6 b of the bucket conveyor 6. Furthermore, a pair of photoelectric switches 11a are further arranged at positions where light can be transmitted through the photoelectric switch holes 11 of the side guide plate 6b, and a plastic bag containing medical waste in the bucket of the bucket conveyor 6 by the photoelectric switches 11a, The presence / absence of a polypeel or cans is detected, and the medical waste preheating device 8, the bucket conveyor 6 and the medical waste processing device 1 can be automatically and sequentially stopped when the processing for a predetermined number of cycles is completed.

  Looking at this from the viewpoint of the medical waste treatment method, a pair of light guides arranged on the same axis on both sides of the side guide plate 6b of the bucket conveyor 6 is arranged at a position where light can be transmitted. The photoelectric switch 11a detects the presence / absence of a plastic bag, polypeel or can containing medical waste in the bucket of the bucket conveyor 6, and the medical waste preheating device 8 and the bucket conveyor 6 upon completion of a predetermined number of cycles. In addition, the medical waste disposal apparatus 1 can be automatically and sequentially stopped.

  As a result, until now, the worker visually confirms the presence or absence of medical waste on the bucket conveyor 6 and manually stops the medical waste processing apparatus 1 due to electrical interlocking with the photoelectric switch 11a and the sequencer. Since the medical waste treatment apparatus 1 can be automatically stopped, drastic labor saving is possible.

  Another embodiment of the present invention will be described. Referring to FIG. 4, a side hole 1 e is further provided in the lower part of the vertical cylindrical casing, and a fork mechanism 12 having a driving means 12 b that is an insertion / removal means that can be inserted into and removed from the side hole 1 e is further provided. When supplying a polypeel or can containing medical waste from the side opening 1d on the side of the cylindrical housing 1a, the toothing rack 12a, which is a fork of the fork mechanism 12, is used with the driving means 12a and the guide roller 12. Then, the inside of the housing 1a is advanced to receive the polypeel or can on the toothing rack 12a that is a fork, and after the hatch 4 of the side opening 1d is closed, the toothing rack 12a that is a fork is retracted, Polypels or cans can be loaded without overturning on the gate heating means 2a of the gate 2 in the lower opening 1b at the bottom of the housing.

Looking at this from the viewpoint of the medical waste treatment method, when supplying a polypail or can containing medical waste from the side opening 1d on the side of the vertical cylindrical housing 1a, the vertical cylinder The toothed rack 12a, which is a fork of the fork mechanism 12 provided with the driving means 12b, which is an insertion / removal means that can be inserted / removed into / from the side hole 1e provided at the lower part of the casing, is formed using the driving means 12a and the guide roller 12. A step of advancing the inside of the body 1a to receive the polypeel or can on the fork, and a step of retracting the tooth rack 12a which is the fork after the hatch 4 of the side opening 1d is closed, and a lower opening at the bottom of the housing 1b, the polypeel or cans can be loaded on the gate heating means 2a of the gate 2 without falling down.
The specific configuration of the fork mechanism 12 is described in detail in Patent Document 4 and will not be described further.

  Thus, the fork that protrudes into the cylindrical housing 1a when supplying the medical waste processing apparatus 1 with waste that is smaller in outer dimensions than the cylindrical housing 1a and is contained in the can like the cans. Since cans are placed on a tooth rack 12a and the hatch is closed after the hatch is closed, the posture of the cans can be stabilized, and cans can be reliably compressed from above the cans. The problem that the medical waste contained in the cans is scattered inside the cylindrical housing 1a can be solved.

  Furthermore, another embodiment of the present invention will be described. Referring to FIG. 8, a friction air blower 8 g is further provided in the hot air generator of the medical waste preheating device 8. Thereby, the air is preheated with the frictional heat of the friction blower 8g, and the electric energy for air heating of the hot air generator can be reduced.

  Looking at this from the viewpoint of the medical waste treatment method, air is preheated with the frictional heat of the friction type blower 8g provided in the hot air generating device of the medical waste preheating device 8, and air heating of the hot air generating device is performed. Therefore, it is possible to have a stage that can reduce the electric energy.

  Thereby, since the air for preheating medical waste can be preheated by the air friction in the friction type blower 8g, the electrical energy for heating the air by the hot air generator can be greatly reduced. Actually, when a vortex blower VB-060 manufactured by Hitachi Industrial Equipment Co., Ltd. was used as the friction blower 8g, the temperature difference between the inlet air and the outlet air was about 60 ° C. This is one third of the air heating temperature of 180 ° C.

  Another embodiment of the present invention will be described. Referring to FIG. 5, hot air blowing and exhaust piercing nozzles 8c and 8d, which are connected to a movable plate having a driving means 8e which is an elevating means capable of moving up and down in the medical waste preheating device 8, are inserted into a plastic bag or a polypeel. In the process of piercing and preheating, the movable plate always moves up and down and can uniformly heat the medical waste in the polybag or polypeel.

  When viewed from the viewpoint of the medical waste treatment method, hot air blowing and exhaust piercing tightly connected to a movable plate provided with a driving means 8e which is an elevating means capable of moving up and down the medical waste preheating device 8 In the process in which the nozzles 8c and 8d are pierced into the polybag or the polypeel and preheated, the movable plate always moves up and down to heat the medical waste in the polybag or the polypeel evenly.

  As a result, the stab nozzles 8c and 8d are constantly heated up and down while the stab nozzles 8c and 8d are stabbed into the plastic bag and the polypail containing the medical waste and the stab nozzles 8c and 8d are preheated. Since the medical waste contained in it can be heated evenly, the reliability of the preheating operation can be greatly improved.

  Furthermore, another embodiment of the present invention will be described. Referring to FIG. 1 and FIG. 2, a slat 2d for receiving a cake obtained by melting and sterilizing and reducing the volume of medical waste by heat compression under the gate 2 of the lower opening 1b at the bottom of the vertical cylindrical housing Is further arranged. Further, a push plate 2c capable of maintaining a constant distance from the snowboard 2d is further connected to the gate 2. When the gate 2 is opened and the cake that has dropped is closed, the cake can be automatically discharged to the outside by the push plate 2c that is tightly coupled to the gate 2.

  Looking at this from the viewpoint of the medical waste treatment method, the gate 2 of the lower opening 1b at the lower part of the vertical cylindrical casing, which is tightly connected to the gate 2 when the gate 2 closes the cake that has been opened and dropped. There is further provided a stage in which the cake can be automatically discharged to the outside by a slat 2d for receiving the cake obtained by melting and sterilizing and reducing the volume of the medical waste by heat compression of the medical waste and a push plate 2c capable of maintaining a certain interval. .

  As a result, the cake that has been subjected to melt sterilization and volume reduction treatment by heat compression can be sequentially and reliably discharged out of the machine by the push plate 2c that is tightly coupled to the gate 2.

  Another embodiment of the present invention will be described. With reference to FIG. 1, a bar code or a quick response code is further pasted on medical waste contained in a plastic bag, polypeel or can for each medical department from which medical waste is discharged. When the medical waste is loaded onto the bucket of the bucket conveyor 6, the barcode or quick response code is read, and the medical waste is subjected to melt sterilization and volume reduction processing by heat compression, and then the discharge source information and the cake obtained by processing are processed. The medical waste preheating device 8 and the medical waste processing device 1 are automatically written on the electronic tag, and the electronic tag is automatically attached to the cake by the IC tag attaching device, so that the medical waste is properly processed. I can prove that.

From the viewpoint of the medical waste treatment method, when medical waste is loaded on the bucket of the bucket conveyor 6, the medical waste is discharged into the medical waste contained in the plastic bag, the polypeel or the cans. After reading the bar code or quick response code pasted for each original medical department, the medical waste is melt-sterilized and volume-reduced by heat compression, and then the discharge source information and the cake obtained are processed. The medical waste preheating device and medical waste processing device 1 processing conditions, etc. are automatically written on the electronic tag, and the electronic tag is automatically pasted on the cake by the IC tag pasting device, and the medical waste is properly processed. And a stage that can prove this.
Since bar codes, quick response codes, and IC tag affixing devices use common ones, they will not be described further.

  This makes it possible to clarify the source of the processed cake, the processing conditions, etc., and if the medical waste is heat-compressed with the apparatus of the present invention, the illegal dumping problem of medical waste can be completely solved, greatly improving the environment. Can contribute.

  Furthermore, another embodiment of the present invention will be described. 3 and 4, the bucket conveyor 6, the medical waste preheating device 8 and the medical waste processing device 1 are electrically linked and integrated with a programmable sequencer and a touch panel display that is electrically linked with the programmable sequencer. Can be controlled.

From the viewpoint of the medical waste processing method, the bucket conveyor 6, the medical waste preheating device 8 and the medical waste processing device 1 are electrically linked, and are electrically linked to the programmable sequencer and the programmable sequencer. The touch panel display can be integratedly controlled.
In addition, since a programmable sequencer and a touch panel display use a general thing, it does not explain any more.

  As a result, the medical waste treatment apparatus 1 of the present invention can be controlled not only in an integrated manner, but also the life and maintenance time of mechanical parts constituting the medical waste treatment apparatus 1 can be managed.

  According to the present invention, the various problems inherent in the above-mentioned existing medical waste treatment methods are not only reliable sterilization and volume reduction, but also ensuring occupational safety, air and water pollution prevention, conservation of the natural environment, energy recycling, etc. It is possible to provide a satisfactory medical waste treatment method and medical waste treatment apparatus that can be satisfied to a medical institution and a medical waste disposal contractor.

  Furthermore, according to the present invention, infectious medical waste, which has been apt to be dumped illegally, can be sterilized, detoxified and detoxified in the hospital where it is discharged, and social responsibility can be fulfilled so as not to cause environmental pollution problems.

DESCRIPTION OF SYMBOLS 1 Medical waste processing apparatus 1a Vertical cylindrical housing 1b Lower opening 1c Upper opening 1d Side opening 1e Side hole 2 Gate 2a Gate heating means 2b Gate drive means 2c Push plate 2d Snowboard 3 Piston 3a Piston heating Means 3b Piston lifting / lowering means 4 Hatch 4a Hatch opening / closing means 5 Gate cover 5a Nozzle 5b Nozzle 5c Blower 5d Deodorizing filter 5e Disinfection filter 5f Air flow control valve 5g Air flow control valve 6 Bucket conveyor 6a Partition plate with bottom 6b Conveyor drive plate 6c Conveyor Means 6d Side guide plate opening 7 Automatic supply device 7a Push plate 7b Slide guide 7c Chute 7d Drive motor 7e Timing belt 7f Connecting bracket 8 Medical waste preheating device 8a Movable plate 8b Push plate 8c Puncture nozzle 8d Puncture nozzle 8e Driving means 8f Slide guide 8g Friction type blower 8h Air heater 8i Motorized valve 8j Air flow control valve 9 Cover 9a Nozzle 9b Blower 9c Deodorizing filter 9d Bacteria-removing filter 10 Nitrogen cylinder 10a Temperature detector 10b Electromagnetic valve 11a Photoelectric switch hole 11a Photoelectric switch 12 Fork mechanism 12a Toothed rack 12b Driving means 12c Guide roller

Claims (26)

  A gate including a heating means and an opening / closing means at the lower part of the vertical cylindrical casing whose upper and lower ends are open, and a piston having a heating means and a compression means by raising and lowering at the upper part of the casing; Supplying a plastic bag containing medical waste to the cylindrical housing in a medical waste processing apparatus comprising a hatch having an opening and closing means for opening and closing a side opening provided on the side of the housing When compressing the medical waste by lowering the piston by the compression means, the plastic bag containing the medical waste is compressed in a stepwise manner by repeatedly lowering and raising the piston. The gate is prevented when the cake obtained by biting into the gap between the body wall and the piston or bursting of the plastic bag due to rapid compression and discharging the cake obtained by heat sterilization and volume reduction by sterilization by melting is discharged. Fully open the piston The lower surface of the means is lowered to a distance of several millimeters of the upper surface of the heating means of the gate, and the cake fixed to the heating means, which is tightly coupled to the piston, can be forcibly scraped off by closing the gate. Medical waste treatment equipment.   A nozzle capable of ventilating the inside of the casing is further provided at the upper part of the vertical cylindrical casing, and the upper part of the gate is ventilated at an upper part of the gate opening / closing means for opening and closing the lower part of the casing. And a deodorizing means for deodorizing the gas at the discharge port of the blower and filtering pathogenic bacteria, and suctioning the gas generated in the process of heating and compressing the medical waste by the blower connected to the nozzle and the pipe The medical waste treatment apparatus according to claim 1, further comprising a filtering means.   A bucket that forms a bucket by a partition plate with a bottom having a constant interval and a constant height, provided with traveling means capable of traveling in the conveyor traveling direction, and a side guide plate having a constant height disposed on a conveyor frame on both sides of the conveyor traveling direction. An automatic equipped with a pusher mechanism for transferring from the side guide plate opening at the end of the bucket conveyor traveling direction to the housing side opening of the medical waste treatment apparatus on the conveyor. The apparatus further includes a supply device, and the bucket of the bucket conveyor is loaded with a plastic bag, a polypeel or a can containing medical waste, and each time the medical waste processing cycle is completed in the medical waste processing device, the bucket conveyor Advances and stops by one bucket at a time, and the medical waste loaded in the bucket is moved by the pusher mechanism. Automatic supply to the medical waste processing apparatus, and when the bucket conveyor is abnormal, the bucket conveyor is continuously advanced or retracted to take out the medical waste loaded on the bucket of the bucket conveyor The medical waste treatment apparatus according to claim 1, wherein the medical waste treatment apparatus is capable of handling the medical waste.   A hot air generating device having hot air blowing and exhaust piercing nozzles tightly coupled to a lower part of a movable plate having lifting means capable of moving up and down in the vertical direction, and having hot air temperature adjusting means capable of adjusting the piercing nozzle and hot air temperature; Further comprising a medical waste preheating device configured by connecting pipes, and piercing the piercing nozzle into a plastic bag and a polypail containing medical waste loaded in the bucket of the bucket conveyor to generate the hot air Cycle time is shortened by preheating medical waste by blowing hot air from the apparatus, and the movable plate provided with lifting means that can be moved up and down in the vertical direction is covered with a cover with an exhaust nozzle, An exhaust port having a deodorizing means for deodorizing gas and a filtering means for filtering pathogenic bacteria at the exhaust nozzle and the exhaust port. And pipe connections, medical waste disposal apparatus according to claim 1, characterized in that it to have deodorizing and filtering the exhaust gas generated from the nozzle piercing exhaust Tightened on the movable plate.   The medical waste is pre-heated and sterilized only with hot air by the medical waste preheating device, the medical waste is discharged from the bucket conveyor without passing through the medical waste processing device, and the contents of the medical waste are made of vinyl chloride. The medical waste treatment apparatus according to claim 4, wherein the medical waste treatment apparatus can be manually separated into a non-vinyl chloride system and a non-vinyl chloride system.   A nitrogen gas supply pipe having a solenoid valve that can be electrically opened and closed is further connected to a piercing nozzle for blowing hot air tightly connected to a movable plate having an elevating means capable of moving up and down in the vertical direction, and an exhaust piercing pipe If the nozzle is further equipped with a thermometer to detect an abnormal temperature rise in the exhaust gas, and the oxygen scavenger mixed in medical waste is ignited by injecting hot air into the plastic bag and polypeel, and a fire occurs The temperature sensor detects an abnormal temperature rise in the exhaust gas, and the solenoid valve of the nitrogen gas supply pipe is electrically opened to blow the nitrogen gas into the poly bag and the poly pail. The medical waste treatment apparatus according to any one of claims 1 to 5, wherein a fire that has occurred in the inside can be automatically digested.   A photoelectric switch hole is further provided on the same axis on both sides of the side guide plate of the bucket conveyor, and a pair of photoelectric switches are further arranged at positions where light can be transmitted through the hole of the side guide plate. The switch detects the presence or absence of a plastic bag, a polypail or a can containing medical waste in the bucket of the bucket conveyor, and upon completion of processing for a predetermined number of cycles, the medical waste preheating device, the bucket conveyor and the medical waste The medical waste treatment apparatus according to any one of claims 4 to 6, wherein the treatment apparatus can be automatically and sequentially stopped.   A side hole is further provided in the lower part of the vertical cylindrical casing, and further provided with a fork mechanism provided with an insertion / removal means that can be inserted into and removed from the hole, and medical waste from the side opening of the side of the vertical cylindrical casing. When supplying the polypeel or can containing the fork mechanism, the fork of the fork mechanism is advanced into the housing to receive the polypeel or can on the fork, and the hatch of the side opening is closed. The medical waste treatment apparatus according to any one of claims 1 to 7, wherein a fork is retracted, and the polypail or the cans can be loaded on the gate in the lower part of the housing without falling down.   By further providing a friction blower in the hot air generator of the medical waste preheating device, it is possible to preheat air with the frictional heat of the friction blower and reduce electrical energy for air heating of the hot air generator. The medical waste disposal apparatus according to any one of claims 4 to 8, characterized in that   In the step of preheating by piercing the hot air blowing and exhaust piercing nozzle, which is tightly connected to the movable plate having the lifting and lowering means capable of moving up and down in the medical waste preheating device, into a plastic bag or a polypeel, The medical waste treatment apparatus according to any one of claims 4 to 9, wherein the movable plate is always moved up and down to uniformly heat the medical waste in the plastic bag or the polypeel.   A slat for receiving a cake obtained by melting and sterilizing and reducing the volume of medical waste by heating and compressing the medical waste can be further disposed below the gate at the bottom of the vertical cylindrical casing, and the gate can be kept at a certain distance from the slat. 11. The push plate is further tightened, and the cake can be automatically discharged to the outside by the push plate tightened to the gate when the gate is closed when the gate is closed. The medical waste disposal apparatus according to any one of the above.   A bar code or a quick response code is further attached to medical waste contained in a plastic bag, polypail, or can for each medical department from which the medical waste is discharged, and the medical waste is transferred to the bucket of the bucket conveyor. The bar code or the quick response code is read when being loaded onto the cake, and the medical waste is subjected to melt sterilization and volume reduction treatment by heat compression, and then the discharge source information and the medical waste preheat are added to the cake obtained by processing. The processing conditions of the apparatus and the medical waste processing apparatus can be automatically written on the electronic tag, and the electronic tag can be automatically attached to the cake by the IC tag attaching apparatus to prove that the medical waste has been properly processed. The medical waste treatment apparatus according to any one of claims 4 to 11, wherein   The said bucket conveyor, the said medical waste preheating apparatus, and the said medical waste processing apparatus can be electrically controlled, and can be integratedly controlled by the programmable sequencer and the touch panel display electrically interlocked with the programmable sequencer. The medical waste disposal apparatus according to any one of 4 to 12. Supplying a plastic bag containing medical waste into a vertical cylindrical housing having upper and lower ends open;
When the medical waste is compressed by lowering the piston by the compression means of the piston having a heating means and a compression means by raising and lowering at the upper part of the housing, the piston is lowered and raised repeatedly in a stepwise manner. Preventing the plastic bag containing medical waste from biting into the gap between the inner wall of the cylindrical housing and the piston or rupturing the plastic bag due to rapid compression;
Fully opening a gate comprising heating means and opening / closing means at the bottom of the casing when discharging the cake obtained by heat sterilization and volume reduction by heat compression;
The lower surface of the heating means of the piston is lowered to a distance of several millimeters of the upper surface of the heating means of the gate, and the cake adhering to the heating means tightly connected to the piston is forcibly scraped off by closing the gate. A medical waste treatment method comprising the steps of: A nozzle provided in the upper part of the vertical cylindrical casing that can ventilate the inside of the casing, and a nozzle that can ventilate the upper part of the gate on the outer upper part of a gate opening / closing means that opens and closes the lower part of the casing; Sucking the gas generated in the process of heating and compressing medical waste with a blower connected to the pipe;
Deodorizing the gas by the deodorizing means at the outlet of the blower;
The medical waste treatment method according to claim 14, further comprising a step of filtering pathogenic bacteria by a filtering means of a discharge port of the blower. A bucket that forms a bucket by a partition plate with a bottom having a constant interval and a constant height, provided with traveling means capable of traveling in the conveyor traveling direction, and a side guide plate having a constant height disposed on a conveyor frame on both sides of the conveyor traveling direction. Loading a plastic bag, polypail or can containing medical waste into a bucket of the conveyor;
Each time a medical waste processing cycle is completed in the medical waste processing apparatus, the bucket conveyor advances and stops one bucket at a time; and
Automatic equipped with a pusher mechanism for transferring the medical waste loaded in the bucket from the side guide plate opening at the end of the bucket conveyor traveling direction to the housing side opening of the medical waste processing apparatus Automatically supplying the medical waste treatment device by the pusher mechanism of the supply device;
The medical device further includes a step of taking out the medical waste loaded on the bucket of the bucket conveyor by continuously moving the bucket conveyor forward or backward when the bucket conveyor is abnormal. The medical waste disposal method according to claim 14 or 15. The hot air blowing and exhaust piercing nozzles are tightly coupled to the lower part of a movable plate having lifting means that can be moved up and down on the plastic bags and polypels containing medical waste loaded in the bucket of the bucket conveyor. And piercing the piercing nozzle of the medical waste preheating device constituted by connecting the piercing nozzle and a hot air generating device having hot air temperature adjusting means capable of adjusting the hot air temperature, Reducing the cycle time by preheating medical waste by blowing hot air;
Covering the periphery of the movable plate provided with lifting means that can move up and down in the vertical direction with a cover with an exhaust nozzle, and filtering the deodorizing means and pathogens for deodorizing gas to the exhaust nozzle and the exhaust port of the cover By connecting a suction port of a blower equipped with a filtering means for
The medical waste treatment according to any one of claims 14 to 16, further comprising a step of deodorizing and filtering exhaust gas generated from the exhaust piercing nozzle tightly coupled to the movable plate. Method. A step of heat sterilizing medical waste with only hot air in the medical waste preheating device;
Discharging the medical waste from the bucket conveyor without passing through the medical waste treatment apparatus, and the contents of the medical waste can be manually separated into a vinyl chloride system and a non-vinyl chloride system. The medical waste disposal method according to claim 17. Thermometer for detecting abnormal temperature rise of exhaust gas at exhaust piercing nozzle when fire occurs when oxygen scavenger mixed in medical waste is ignited by blowing hot air into plastic bag and polypeel Detecting the abnormal temperature rise of the exhaust gas at
The solenoid valve of the nitrogen gas supply pipe having an electromagnetic valve that can be electrically opened and closed is connected to a stab nozzle for blowing hot air tightly connected to a movable plate having an elevating means that can be moved up and down. The method further comprises the step of automatically digesting a fire generated in the plastic bag and the polypeel by blowing and opening nitrogen gas into the plastic bag and the polypeel. The medical waste disposal method as described in 4.   Medical waste enters the bucket of the bucket conveyor with a pair of photoelectric switches arranged at positions where light can pass through the holes for photoelectric switches provided on the same axis on both sides of the side guide plate of the bucket conveyor. A step of detecting the presence / absence of a plastic bag, a polypeel or a can, and a step of automatically and sequentially stopping the medical waste preheating device, the bucket conveyor and the medical waste processing device upon completion of a predetermined number of cycles. The medical waste disposal method according to any one of claims 17 to 19, characterized by comprising: Insertion / removal means that can be inserted / removed into / from a side hole provided in the lower part of the vertical cylindrical casing when supplying a polypail or can containing medical waste from the side opening of the vertical cylindrical casing side. A fork of a fork mechanism including the step of moving the fork mechanism into the housing to receive the polypeel or can on the fork;
The method further comprises the step of retracting the fork after the hatch of the side opening is closed and loading the polypail or can on the gate at the lower part of the housing without falling down. Item 21. The medical waste treatment method according to any one of Items 14 to 20.   The method further comprises the step of preheating air with the frictional heat of a friction blower provided in the hot air generation device of the medical waste preheating device to reduce electrical energy for air heating of the hot air generation device. The medical waste disposal method according to any one of claims 17 to 21.   In the step of preheating by piercing the hot air blowing and exhaust piercing nozzle, which is tightly connected to the movable plate having the lifting and lowering means capable of moving up and down in the medical waste preheating device, into a plastic bag or a polypeel, The medical waste treatment apparatus according to any one of claims 17 to 22, further comprising a stage in which the movable plate is always moved up and down to uniformly heat the medical waste in the plastic bag or the polypeel. .   Cake obtained by melting and sterilizing and reducing the volume of medical waste by heating and compressing medical waste below the gate at the bottom of the vertical cylindrical casing, which is tightly coupled to the gate when the gate is closed when the gate is opened and dropped The medical waste according to any one of claims 14 to 23, further comprising a step of automatically discharging the cake to the outside with the push plate capable of maintaining a predetermined distance from the slat for receiving the food. Material processing method. When the medical waste is loaded on the bucket of the bucket conveyor, the barcode attached to the medical waste contained in a plastic bag, polypeel or cans for each medical department from which the medical waste is discharged Or reading the quick response code,
The medical waste is subjected to melt sterilization and volume reduction processing by heat compression, and then the discharge source information and the processing conditions of the medical waste preheating device and the medical waste processing device are added to the cake obtained by processing the electronic tag 25. The method further comprises the step of automatically writing to the cake and attaching the electronic tag to the cake automatically by an IC tag attaching device to prove that the medical waste has been properly processed. The medical waste disposal method as described in any one of these.   The bucket conveyor, the medical waste preheating device, and the medical waste processing device are electrically linked to each other, and can further be integratedly controlled by a programmable sequencer and a touch panel display that is electrically linked to the programmable sequencer. 26. The medical waste disposal method according to any one of claims 17 to 25, wherein