JP2009034605A - Hazardous waste treatment method and its apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hazardous waste treatment method and its apparatus which can sufficiently heat and decompose material to be treated to reduce its volume after the treatment in comparison with the volume before the treatment. <P>SOLUTION: A melting furnace 2 made of heat-resistant ceramics is provided upright in floatation above a floor. An openable and closable upper lid 4 and lower lid 5 are provided at the upper and lower openings of the melting furnace 2. A suction port 7 is provided in either the melting furnace 2 or the upper lid 4. A heating element is provided around the melting furnace 2. A heated drop lid with a droppable weight is provided so as to hang from the back surface of the upper lid 4. A material to be treated is put into the melting furnace 2, and the inside of the melting furnace 2 is sucked from the suction port 7 to reduce pressure. The inside of the melting furnace 2 is heated by the heating element. The heated drop lid is dropped down and brought into contact with the material to be treated, which melts the material to be treated in the melting furnace 2 to reduce its volume. The gas in the melting furnace 2 is sucked from the suction port 7 and discharged outside through an odor elimination and sterilization device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  This invention relates to hazardous waste discarded from business establishments, in particular, hazardous infectious waste contained in waste injection needles and other medical wastes from hospitals and clinics, so-called special management The present invention relates to a hazardous waste processing method and apparatus for heat-treating waste into a general waste in a vacuum and reduced pressure state.

Conventionally, the sterilization method of infectious hazardous waste materials, so-called specially controlled waste contained in waste injection needles and other medical wastes, is sterilized at 10 ⁻⁶ (Bacillus) according to “Ministry of Health, Labor and Welfare No. 956”. Bacteria), sterilization temperature of 135 degrees or more, normal pressure, treatment time 55 minutes is decided. There are various devices for treating such infectious hazardous waste, and among the existing hazardous substance removal devices, oil heating method and high-temperature vaporization that burns the treated object containing harmful substances at high temperature It is widely known that melting furnace devices and electric plasma melting furnace devices can safely and reliably remove harmful substances, and that peripheral devices are also equipped with excellent devices. For this reason, high-temperature vaporization and melting furnace devices that calcinate the object to be processed at high temperatures are of interest to incinerator manufacturers, local governments, and final processing companies.

  In such a conventional harmful substance removal apparatus, oil heating method, high-temperature vaporization melting furnace apparatus and electric plasma melting furnace apparatus, all of the object to be processed is heated in an aerobic state, so a large amount of carbon dioxide is generated during the processing. The carbon dioxide is released to the outside.

  Among these, as a harmful substance removing apparatus that does not generate carbon dioxide, there is Japanese Patent Publication No. 7-34902 “Far Infrared Decomposing Apparatus” (Patent No. 2038214) invented by the present inventor. In this far-infrared decomposition apparatus, a crucible having a space for accommodating an object to be processed is provided in the furnace main body so as to have a gap between the outer periphery of the crucible other than the support portion, and an opening of the crucible is provided. An opening / closing lid that closes the opening of the crucible and the opening of the furnace body is provided inside the opening of the furnace body, closes the opening / closing lid to evacuate the crucible, and incinerates the workpiece. A suction pipe for deriving the gas generated from the crucible from inside the crucible, a heating device for heating the crucible in a gap with the outer periphery of the crucible of the furnace body, and an exhaust pipe communicating with the gap protruding from the furnace body, The crucible is made of a material with high thermal conductivity that generates far infrared rays.

Similarly, there is Japanese Patent No. 3266591 “intermittent flow type thermal decomposition apparatus”. This intermittent flow type thermal decomposition apparatus rotatably supports both sides of a rotary furnace on both sides of a frame body, and is provided with a cylindrical crucible in the axial direction of the central portion of the rotary furnace. A spiral groove is provided in the axial direction on the inner periphery of the hollow portion, and both ends of the opening of the crucible are closed by the injection port portion and the discharge port portion supported by the frame body. An electrothermal heating device for heating the inside of the crucible is provided, a double shut-off device is provided in each of the injection port and the discharge port, the inside of the crucible is evacuated to the discharge port, and the object to be processed Is provided with a suction pipe for deriving the gas generated when decomposing the gas from the crucible, and a drive device for rotating the rotary furnace.
Japanese Patent Publication No. 7-34902 Japanese Patent No. 3266591

  However, in these far-infrared decomposition apparatus and intermittent flow type thermal decomposition apparatus, heating is performed only from the outside of the crucible, and sufficient heat is applied to the so-called inner core of the workpiece put in the crucible. As a result, the object to be treated could not be sufficiently thermally decomposed.

  Therefore, in view of these points, the present invention can sufficiently decompose the object to be processed, and can reduce the volume after the processing of the object to be processed as compared with that before the processing. A processing method and an apparatus thereof are provided to solve the above-described problems.

  According to the first aspect of the present invention, a melting furnace made of a heat-resistant ceramic is suspended from a floor, and an openable upper and lower lids are provided at upper and lower openings of the melting furnace, and the melting furnace, upper lid or lower lid is provided. A suction port for sucking the gas in the melting furnace is provided, a heating element is provided around the melting furnace, and a heated drop lid having a constant weight that can be dropped is hung on the back surface of the upper lid. The object to be processed is put into the melting furnace, the inside of the melting furnace is sucked from the suction port and depressurized to a vacuum state, the inside of the melting furnace is heated by the heating element, and the heated drop lid is Dropped into contact with the object to be processed, the object to be processed is melted and reduced in the melting furnace, and the gas in the melting furnace is sucked from the suction port and passed through a separate deodorizing sterilizer. This was a method for treating hazardous wastes.

  According to a second aspect of the present invention, a melting furnace made of a heat-resistant ceramic is suspended from a floor, and an openable upper and lower lids are provided at upper and lower openings of the melting furnace, and the melting furnace, upper lid or lower lid is provided. A suction port for sucking the gas in the melting furnace, a suction device for reducing the pressure in the melting furnace to a vacuum state from the suction port, and heating the melting furnace around the melting furnace A body is provided, and a heated drop lid having a constant weight that can be contacted with an object to be processed in the melting furnace is hung on the back surface of the upper lid, and separately, the gas in the melting furnace sucked from the suction port is processed. A hazardous waste treatment apparatus equipped with a deodorizing sterilization apparatus was used.

  According to a third aspect of the present invention, the melting furnace is accommodated in a box, a plate door is provided at an upper inlet provided on a side surface of the box corresponding to the opened state of the upper lid, and the lower lid is opened. Correspondingly, a drawer-like frame door is provided at the lower carry-out port provided on the side of the box, and the opening and closing of the plate door, the opening and closing of the upper lid of the melting furnace, and the opening of the frame door and the lower lid of the melting furnace The hazardous waste treatment apparatus according to claim 2, wherein the opening and closing are linked to each other.

  According to a fourth aspect of the present invention, the deodorizing and sterilizing apparatus is the hazardous waste processing apparatus according to the second or third aspect, which is housed in the box.

  According to each of the first and second aspects of the invention, a hot drop lid that can be freely dropped is hung on the back surface of the upper lid of the melting furnace, and the object to be processed put in the melting furnace is heated from the outside in a reduced pressure state. In addition, since a heated drop lid having a constant weight is dropped and comes into contact with the workpiece by its own weight, sufficient heat passes to the so-called inner core of the workpiece, and from above the drop lid. Since the object to be processed is pressed by the pressure contact, the object to be processed can be sufficiently melted and reduced in volume. Thereby, the capacity of the processed object after processing can be remarkably reduced as compared with that before processing, and the subsequent disposal does not take time. In addition, since the object to be treated is heated under reduced pressure and oxygen and sterilized and reduced in volume, specially managed waste can be made into general waste easily and without any hassle, and conventionally treated as specially managed waste. It can be treated as general waste and is economical.

  According to invention of Claim 3, the said melting furnace is accommodated in a box, a plate body door is provided in the upper inlet provided in the side surface of the box corresponding to the open state of the said upper cover, and the said lower cover is open | released Corresponding to the state, a drawer-like frame door is provided at the lower carry-out port provided on the side of the box, and the plate door is opened and closed, the upper lid of the melting furnace is opened and closed, and the frame door and the melting furnace Since the opening and closing of the lid are linked to each other, if the object to be processed is put into the box through the upper inlet of the box, it is taken out from the drawer-like frame door at the lower outlet of the box after the melting and volume reducing process. I can do it. Therefore, the apparatus itself can be compactly accommodated in the box, and hazardous waste can be processed easily and without trouble.

  According to the invention of claim 4, since the deodorizing and sterilizing apparatus for deodorizing and sterilizing the gas in the melting furnace is accommodated in the box, the apparatus itself is further compact and easy to use.

  A melting furnace made of heat-resistant ceramics is suspended from the floor, and an openable upper and lower lids are provided at the upper and lower openings of the melting furnace, and either the melting furnace, the upper lid or the lower lid has the melting A suction port for sucking the gas in the furnace is provided, a heating element is provided around the melting furnace, and a heated drop lid having a constant weight that can be dropped is hung on the back surface of the upper lid. Put in the melting furnace, suck the inside of the melting furnace from the suction port and depressurize, heat the inside of the melting furnace by the heating element, drop the heated drop lid and contact the object to be processed A method for treating hazardous waste, wherein the object to be treated is melted and reduced in the melting furnace, and the gas in the melting furnace is sucked from the suction port and exhausted to the outside through a deodorizing and sterilizing apparatus provided separately. It was. Thereby, the said to-be-processed object can fully be melt-reduced.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a partially omitted cross-sectional left side view of a hazardous waste disposal apparatus according to an embodiment of the present invention. FIG. 2 is a partially omitted cross-sectional front view of the hazardous waste treatment apparatus. FIG. 3 is a partially sectional right side view of the hazardous waste treatment apparatus. FIG. 4 is a plan view of the hazardous waste treatment apparatus. FIG. 5 is a partially omitted cross-sectional front view of the melting furnace of the hazardous waste treatment apparatus.

  As shown in FIGS. 1, 2, 3 and 4, the hazardous waste treatment apparatus A according to the embodiment of the present invention is provided with a plate body in the vertical direction in the box 1 in the form of a vertically long rectangular parallelepiped. The space on the left is made larger than the space on the right, and the cylindrical melting furnace 2 shown in FIG. 5 formed of heat-resistant ceramics is erected in the space on the left, and a certain length above the bottom of the box 1 The lower part is fixed by a frame 3 having legs in four directions and supported in the box 1. Disc-shaped upper lid 4 and lower lid 5 are respectively provided in the upper and lower openings of the melting furnace 2.

  Further, the melting furnace 2 has a stepped portion 2a with a small inner peripheral diameter at a location where it rises upward from the lower lid 5 by a certain length, and a sensor 10 is provided on the stepped portion 2a. Further, a heating element 11 made of an electric heater is wound around the upper and lower sides of the outer peripheral surface of the melting furnace 2, the outer periphery thereof is covered with a heat insulating material 13, and the entire outer periphery is covered with cast or aluminum steel 14. The melting furnace 2 is provided with a pressure gauge 2b, a furnace thermometer 2c, and a heater thermometer 2d (see FIG. 9).

  Moreover, as shown in FIG.2 and FIG.3, the deodorizing sterilizer is accommodated in the space on the right side of this box 1, and it is divided into four steps from the top. Two vacuum pumps 22 and an ozone generator 29 are attached to the uppermost first stage, and two vacuum pumps 22 are provided as a spare, and two vacuum pumps 22 are provided. This is because the vacuum pumps 22 are used alternately. Further, a degassing dissolution tank 24 and an antibacterial ceramic activated carbon tank 28 are attached to the second stage below. A deodorizing tank 25 and an ozone decomposition layer 27 are attached to the third stage.

  In the antibacterial ceramic activated carbon tank 28, activated carbon 20-50%, kaolin 30-60%, knot viscosity 10-40%, feldspar 1-10%, silver 0.1-0.5%, titanium 0.5- The ceramic activated carbon filter formed by mixing 1% and calcining at 1,000 to 1,260 degrees for 10 to 18 hours in anoxic condition is used. It is attached. An exhaust fan 30 is provided on the ceiling of the box 1.

  FIG. 6 is a partially omitted left side view, with the upper lid of the melting furnace of the hazardous waste treatment apparatus of the embodiment of the present invention opened. FIG. 7 is a partially omitted cross-sectional left side view of the hazardous waste treatment apparatus with the lower lid of the melting furnace opened.

  The upper lid 4 is openable and closable at one end edge of the opening of the upper portion of the melting furnace 2 as a fulcrum by an upper lid driving device comprising an electric cylinder 6 shown in FIG. 6 provided on the side surface of the melting furnace 2. In the vicinity of the center of the upper lid 4, two through holes penetrating to the back surface are formed, and a suction port 7 and an injection port 8 are provided. Similarly, the lower lid 5 is provided so as to be freely opened and closed by a lower lid driving device including an electric cylinder 9 shown in FIG.

  When the upper lid 4 is opened, as shown in FIG. 1, a workpiece input port 12 is provided at a position substantially opposite to the back surface of the upper lid 4 and the box 1, and a plate door that can be opened and closed here. 20 is provided. When the plate door 20 is opened, the plate door 20 is tilted at a substantially right angle so that the free end is inclined slightly upward. Further, as described above, the upper lid 4 is opened and closed by the electric cylinder 6, but the opening and closing of the upper lid 4 is interlocked with the movement of the plate body door 20 of the workpiece input port 12. That is, when the plate body door 20 is opened and tilted at a substantially right angle, the upper surface of the plate body door 20 becomes a mounting table 20a for the processing object B, and the processing object B is mounted on the mounting table 20a. When the plate door 20 is rotated slightly to close it, the plate door 20 is smoothly rotated and closed by an air suspension (not shown), and the workpiece B is automatically opened at the top of the melting furnace 2. The upper lid 4 is interlocked and closed at the same time.

  In addition, when the lower lid 5 is opened, a workpiece outlet 23 is provided at a position substantially opposite to the back surface of the lower lid 5 and the box 1, and a frame that can be opened and closed at the workpiece outlet 23. A body door 21 is provided. It has a horizontal plate body along the lower end edge of the frame door 21 and has a substantially L-shaped side surface so that it can be pulled out from the workpiece outlet 23 to the outside of the box body 1. . When the lower lid 5 is opened by interlocking the movement of the lower lid 5 with the frame door 21 of the workpiece outlet 23, the frame door 21 of the workpiece outlet 23 is moved to an air suspension (not shown). ), And is provided so as to protrude and project smoothly.

  FIG. 8 is a conceptual diagram showing a drop lid suspended from the upper lid of the melting furnace of the hazardous waste disposal apparatus of the embodiment of the present invention. The back surface of the upper lid 4 has a recess, and an electric heater or a heating element 15 that emits an electromagnetic wave is provided along the recess, and the back surface of the upper lid 4 is made of a heat-resistant ceramic as shown in FIG. A disc-shaped drop lid 16 having a thickness is suspended by a steel wire 17 so as to be movable in the vertical direction in the melting furnace 2. The drop lid 16 is a weight. The top surface shape of the drop lid 16 is a convex shape corresponding to the concave portion on the back surface of the upper lid 4, and can freely contact the heating element 15 of the upper lid 4. The steel wire 17 is led out through the central portion of the upper lid 4 and can be wound or pulled out by a winch (not shown) provided outside the melting furnace 2. Is suspended at three points or five points so that it does not rotate or move inadvertently and is always in a stable state. The drop lid 16 also has two through holes 18 and 19 at positions facing the suction port 7 and the injection port 8 of the upper lid 4 when positioned below the upper lid 4. As a result, the suction port 7 and the through-hole 18, and the injection port 8 and the through-hole 19 communicate with each other when the lid 16 is dropped under the upper lid 4 and brought into contact with the lid 16. Moreover, a sealing material is provided in the hole through which the steel wire 17 of the upper lid 4 is passed, so that the sealed state of the upper lid 4 is not hindered.

  FIG. 9 is a chart showing the processing steps in the deodorization sterilization apparatus for the gas sucked in the melting furnace of the hazardous waste processing apparatus of the embodiment of the present invention. As shown in FIG. 9, the tanks are connected by a vent pipe 31, and the gas sucked by the vacuum pump 22 from the melting furnace 2 is the melting furnace 2, the degassing dissolution tank 24, the deodorizing tank 25, and the ozone. After passing through the spray sterilization tank 26, the ozonolysis tank 27, and the antibacterial ceramic activated carbon tank 28, all harmful substances are finally removed and discharged to the outside from the exhaust fan 30 provided in the ceiling portion of the box 1. The ozone generated by the ozone generator 29 is sent to the melting furnace 2 and the ozone spraying sterilization tank 26 by a switching valve.

  Next, the hazardous waste treatment apparatus A is used to treat a waste injection needle and other medical waste which are so-called special management waste. First, at the workpiece input port 12 of the melting furnace 2 shown in FIG. 1, the door made of the plate body door 20 is opened and tilted at a right angle to the front, and the collected processing object B is disposed on the mounting table 20a. Place a lump of syringe needle. When the plate door 20 is closed, the workpiece B is automatically put into the melting furnace 2 and placed on the bottom. In conjunction with the movement of the plate door 20, the upper lid 4 is closed and the inside of the melting furnace 2 is in a sealed state.

  Subsequently, the ozone generated in the ozone generator 29 is sprayed for 10 to 30 seconds from the inlet 8 of the upper lid 4 to primarily sterilize the melting furnace 2. Thereafter, the ozone generator 29 is stopped, the vacuum pump 22 is operated, and the inside of the melting furnace 2 is vacuum depressurized through the suction port 8. At the same time, the heating element 11 provided outside the melting furnace 2 is turned on. The workpiece B is heated at 200 to 400 degrees. The operation of the vacuum pump 22 is continued until all the processes in the melting furnace 2 are completed, and the inside of the melting furnace 2 is always maintained in a vacuum reduced pressure state of 30 to 60 Kpa (preferably 40 Kpa) until the process is completed. In addition, the gas generated from the workpiece B during the vacuum heat treatment is removed by suction. In this way, the object to be processed B is sterilized and heated in a vacuum and oxygen-free state.

  Further, in the processing of the object to be processed B, the heating element 15 of the upper lid 4 is also turned on, and the dropping lid 16 sufficiently heated by these heating elements 15 operates the winch so that the steel wire 17 is extended and its own weight. The workpiece B at the bottom of the melting furnace 2 is dropped from above and pressed by the lid 16. And this to-be-processed object B is heated at high temperature from upper direction. Due to the heat conduction from above by the dropping lid 16, it has become possible to heat and melt the so-called core inside the workpiece B that has been difficult in the past. Further, at the time of heating and melting, the gas in the melting furnace 2 is always sucked by the vacuum pump 22, processed in each processing tank of the deodorizing sterilizer as described above, and exhausted outside the box 1.

  Thereafter, when the vacuum decompression process and the heating process are completed and the drop lid 6 comes into contact with the step 2 a inside the melting furnace 2, the power of the heating element 11 is turned off by the sensor 10, and the operation of the vacuum breaker valve 32 is performed. Outside air (cooling air) is introduced from the inlet 8 of the upper lid 2 to lower the temperature in the melting furnace 2. At this time, the vacuum pump 22 operates until the temperature in the melting furnace 2 reaches 100 degrees.

  When the temperature in the melting furnace 2 falls below 100 degrees, the processing is completed and the operation of the vacuum pump 22 is stopped. The workpiece B is melted in a vacuum and reduced pressure state, and then solidified by cooling to become a workpiece B ′ whose volume is a fraction of that before the treatment. In this state, the open state of the vacuum break valve 32 is maintained, and the vacuum state of the melting furnace 2 is released. Therefore, the lower lid 5 is opened, and the workpiece B ′ is, as shown in FIG. 1, transmitted through the back surface of the lower lid 5 from the opening, and the horizontal frame of the workpiece outlet 23 protruding forward. It rolls on the door 21 and is carried out. The processing time was approximately 40 minutes from the input of the object to be processed B to the unloading of the object to be processed B ′.

  At the same time when the lower lid 5 is opened and the workpiece B ′ is carried out, the dropping lid 16 is again pulled up with the steel wire 17 wound up to the back surface of the upper lid 4.

  In the above embodiment, the melting furnace 2 has a cylindrical shape, but may have a rectangular tube shape or other polygonal tube shape. Further, although the drop lid 16 is heated by the heating element 15 provided on the upper lid 4, a heating element may be provided on the lower surface of the drop lid 16. Furthermore, although the antibacterial ceramic activated carbon filter is used, it is not always necessary to use these filters, and other filters may be used. Further, the structure for supporting and opening and closing the upper lid 4 and the lower lid 5 is not limited to the vertical drive device, the electric cylinders 6 and 9, and the like, and other structures may be used.

  Furthermore, although the deodorizing and sterilizing apparatus is provided in the box 1, the deodorizing and sterilizing apparatus may be provided outside the box 1. In addition, the melting furnace 2 being processed is specifically described as being in a vacuum reduced state of 30 to 60 kpa, and the firing temperature is set to 200 to 400 degrees, etc. The optimum pressure, temperature, etc. may be selected without being limited to these. Moreover, although the to-be-processed object B is processed in the vacuum pressure reduction state, this vacuum pressure-reduced state shows what is called a vacuum state, but the to-be-processed object B may only be processed in the pressure-reduced state.

It is a partially omitted cross-sectional left side view of the hazardous waste disposal apparatus of the embodiment of the present invention. 1 is a partially omitted cross-sectional front view of a hazardous waste disposal apparatus according to an embodiment of the present invention. It is a partial cross section right view of the hazardous waste processing apparatus of the Example of this invention. It is a top view of the hazardous waste processing apparatus of the Example of this invention. It is a partially omitted sectional front view of the melting furnace of the hazardous waste disposal apparatus of the embodiment of the present invention. It is a partially omitted cross-sectional left side view in a state in which the upper lid of the melting furnace of the hazardous waste treatment apparatus of the embodiment of the present invention is opened. It is a partially omitted cross-sectional left side view of the hazardous waste disposal apparatus of the embodiment of the present invention with the lower lid of the melting furnace opened. It is a conceptual diagram which shows the drop cover suspended from the upper cover of the melting furnace of the hazardous waste processing apparatus of the Example of this invention. It is a chart figure which shows the process process in the deodorization sterilizer of the gas attracted | sucked in the melting furnace of the hazardous waste processing apparatus of the Example of this invention.

Explanation of symbols

A Hazardous waste treatment device B Processed object B 'Processed object 1 Box 2 Melting furnace 2a Stepped part 2b Pressure gauge 2c In-furnace thermometer 2d Heater thermometer 3 Frame 4 Upper lid 5 Lower lid 6 Electric cylinder 7 Suction port DESCRIPTION OF SYMBOLS 8 Inlet 9 Electric cylinder 10 Detection sensor 11 Heating body 12 Processing object insertion port 13 Heat insulating material 14 Aluminum steel 15 Heating body 16 Drop lid 17 Steel wire 18 Through-hole 19 Through-hole 20 Plate body door 20a Mounting base 21 Frame body door 22 Vacuum pump 23 Workpiece outlet 24 Degassing dissolution tank 25 Deodorizing tank 26 Ozone spray sterilization tank 27 Ozone decomposition tank 28 Antibacterial ceramic activated carbon tank 29 Ozone generator 30 Exhaust fan 31 Vent pipe 32 Vacuum break valve

Claims (4)

A melting furnace made of heat-resistant ceramics is suspended from the floor, and an upper and lower lid that can be opened and closed are provided at the upper and lower openings of the melting furnace.
A suction port for sucking the gas in the melting furnace is provided in either the melting furnace, the upper lid or the lower lid, and a heating element is provided around the melting furnace. A heated drop lid is provided, the work piece is placed in the melting furnace, the inside of the melting furnace is sucked from the suction port to reduce the pressure, and the inside of the melting furnace is heated by the heating element, Deodorizing and sterilization separately provided by dropping the heated drop lid and bringing into contact with the object to be processed, melting the volume of the object to be processed in the melting furnace, and sucking the gas in the melting furnace from the suction port A method for treating hazardous waste, characterized in that the exhaust is exhausted through a device. A melting furnace made of heat-resistant ceramics is suspended from the floor, and an upper and lower lid that can be opened and closed are provided at the upper and lower openings of the melting furnace.
Any one of the melting furnace, the upper lid or the lower lid is provided with a suction port for sucking the gas in the melting furnace, a suction device for reducing the pressure in the melting furnace from the suction port is provided, and the melting furnace is provided around the melting furnace. A heating element is provided that heats the inside, and a heated drop lid having a constant weight that can be contacted with an object to be processed in the melting furnace is hung on the back surface of the upper lid, and is separately provided in the melting furnace that is sucked from the suction port. An apparatus for treating hazardous waste, characterized in that a deodorizing and sterilizing apparatus for treating the gas is provided. The melting furnace is housed in a box, and a plate door is provided at an upper charging port provided on the side of the box corresponding to the opened state of the upper lid, and the side of the box corresponding to the opened state of the lower lid A drawer-shaped frame door is provided at the lower exit provided in
The harmful effect according to claim 2, wherein the opening and closing of the plate door, the opening and closing of the upper lid of the melting furnace, and the opening and closing of the frame door and the lower lid of the melting furnace are interlocked. Waste treatment equipment. 4. The hazardous waste processing apparatus according to claim 2, wherein the deodorizing and sterilizing apparatus is housed in the box.