JP4517131B2 - Waste treatment equipment - Google Patents

Description

  The present invention relates to a waste treatment apparatus that heats (burns) combustible waste at a high temperature in the center of a combustion section, and performs combustion treatment in a state where the temperature gradually decreases around the combustion section. The present invention relates to an apparatus that incinerates waste that occurs naturally, such as fallen leaves, and plastic, in addition to flammable combustible waste, without causing pollution such as odors and harmful gases. Combustible waste is burned at a high temperature in the center of the combustion part, and the high temperature part is treated so as to be fired at a low temperature in the surrounding area. An object of the present invention is to provide a processing apparatus that is easy to manage and maintain without being discharged.

  Combustible combustible waste discharged from general small-scale business establishments is often collected by a collection vehicle of a waste disposal company and is collected separately from waste discharged from households. In many cases, the wastes are processed together in an incinerator or the like of an industrial waste disposal company. In addition, it is adopted as a general disposal method to collect in a large incineration treatment plant together with garbage discharged from ordinary households, collect a large amount of garbage in one place, and incinerate it. In other words, unburned incineration ash generated by the incineration treatment is also subjected to landfill treatment.

  In addition, the waste discharged from small-scale offices is a collection of paper and other combustible combustible waste, which is incinerated using a small incinerator on the company's premises, and only incineration ash In many cases, a processing method such as discarding is used. In addition, a process of confining the secret inside the company is performed at the same time so that a document describing the secret inside the company does not leak out by incinerating the paper waste in-house.

  However, when a combustible waste such as paper waste is to be incinerated using a small combustion furnace or the like, if a device that performs a combustion treatment at a high temperature, such as a conventional combustion treatment device, is used, the management of combustion It is said that harmful gases such as dioxins are likely to be generated because of the poor performance. In particular, when incinerating a mixture of various types of flammable waste using a small combustion furnace, incomplete combustion may occur due to the presence of water-rich waste or nonflammable materials. There is also a problem that it is likely to occur, and as a result, a lot of bad odors and off-flavors are often generated, and it often causes trouble to the surroundings.

Therefore, in order to deal with the problems of the generation of harmful gases and the generation of malodors as described above, it has been proposed to dispose using the processing means as disclosed in Document 1. Yes. In the conventional example, by using technical means for incineration of garbage at a low temperature, it is possible to prevent generation of harmful gases such as dioxin, bad odors and odors, and downsizing of equipment can be achieved. It is described that a number of objects that the processing work can be facilitated can be achieved simultaneously (see, for example, Patent Document 1).
JP 2004-136249 A

  However, even when the disposal method disclosed in the above-mentioned conventional example is actually used, it has been found that the technical means disclosed in the specification has doubts on the feasibility. In other words, the combustion method such as oxygen-free combustion as illustrated is not disclosed so that anyone can easily adopt it, and the problem remains that the invention cannot actually be used by others. is there. Therefore, it is presumed that actually detoxifying flammable waste cannot be easily performed by using the disclosed technical means. In addition, depending on the prior art, both the supply mechanism for the gas body used for combustion and the exhaust gas exhaust processing method are performed using a relatively troublesome processing method, so that the maintenance of the apparatus is not performed. There are still many issues that need to be solved that are difficult to manage.

  The present invention uses a means for heat (combustion) treatment in such a manner that combustible waste is burned at a high temperature in the central portion of the combustion portion and steamed at a low temperature around the high temperature portion. It is an object of the present invention to provide a device that can prevent the generation of harmful gas bodies such as the above, and can easily handle combustible waste using a small device.

The present invention relates to a processing apparatus for stacking and depositing waste as an object to be processed in a furnace and combusting it in a combustion section set at the center of the lower part of the object to be processed.
The invention of claim 1 is provided with an input part for supplying an object to be processed at the upper part of the processing apparatus, and a discharge part for taking out the unburned ash component at the lower part,
As the air supply members for supplying the outside air toward the combustion section, two sets of air supply members, one arranged in the front-rear direction of the apparatus main body and one arranged on both sides, are arranged at the height of the axis of each set. Arranged in a different state so that outside air can be supplied directly to the combustion section,
In a processing furnace body for burning and processing an object to be processed, an inner wall member surrounding a combustion part and an outer wall member in contact with the outside air are arranged at a certain interval, and a combustion gas is placed between the inner and outer walls. Provide a side space that can circulate the part,
Openings are provided in the upper and lower portions of the inner wall member so as to communicate between the side space and the combustion portion, respectively, and serve as a path for guiding combustion gas generated by combustion of the object to be processed, and in the upper portion of the side space. Is provided with a path for exhausting part of the combustion gas generated by combustion toward the outside air,
In the upper part of the side space formed between the inner and outer walls of the processing furnace, the combustion gas generated in the combustion part is brought into contact with the outside air and is cooled by being brought into contact with the outer wall member that is kept at a low temperature. A ventilation guide path for supplying the combustion gas having a higher specific gravity from the lower part of the side space toward the combustion part again,
In the lower part of the combustion part of the furnace body, there is provided a gap having a function of temporarily storing the ash component remaining in the combustion part and communicating the combustion part with the lower part of the side space. Features.

According to a second aspect of the present invention, there is provided a heat treatment unit in which an object to be processed deposited inside an inner wall member of a combustion unit of the processing furnace main body is subjected to a combustion treatment on an ash layer accumulated in a lower part of the combustion unit. In the upper treatment layer, the layer to be dried by the heat of the heat treatment layer is positioned so as to overlap,
The upper layer to be dried is supplied to the heat treatment section while being pressed by the weight of the workpiece to be newly deposited from above, and the upper portion of the treatment furnace main body Provided with a pressing means for pressing the workpieces stacked in a downward direction,
In the air supply member for supplying outside air toward the combustion part, a magnet member is disposed in the air supply path so that air that has passed through a magnetic field can be supplied toward the substantially central part of the combustion part. The outside air supply can be adjusted,
A part of the combustion gas generated by the combustion of the object to be processed is circulated in the combustion part of the heat treatment part so as to be supplied from the lower part of the combustion part through the side space, and the combustion gas generated in the combustion part Is treated with high heat through the combustion section again.

  With the configuration as described above, the heat treatment apparatus of the present invention can be disposed of at any time by installing it near a source that emits a relatively small amount of combustible waste, such as a small-scale establishment. It can be used for processing. And combustible waste can be burned and processed little by little, without providing a large-scale incineration processing facility. When heat-treating the combustible waste, air passing through a magnetic field is supplied to the central part of the combustion part and burned at a high temperature of about 1200 ° C., and gradually decreases from the central part to the outside. A method is adopted in which combustion conditions are set and combustion treatment is performed.

  And with the heat generated from the combustion part of the combustion treatment part, the surrounding part is heated and dried to separate the moisture and volatile components until the combustion part in the center is reached, In the portion that burns at a high temperature, the volatile component is processed so as not to disturb the combustion. In addition, combustible waste as an object to be heat-treated is not particularly limited in its type or property, and can treat all waste discharged from general offices and households.

  In the apparatus of the present invention, a path for supplying air through a magnetic field is provided, and air through a magnetic field is directly injected into the combustion part, and the combustion part is limited and partitioned. And a combustion processing effect | action can be easily controlled by making it burn locally. In addition, in the stage before the object to be processed reaches the combustion part, the action of drying with the heat generated from the combustion part is performed, and the thing in a state where the volatile components are eliminated is subjected to the combustion process. The combustion to be performed is in a state that does not include a component that inhibits the combustion action. Further, a large amount of volatile components generated from the part to be processed are heated from the lower part of the furnace body toward the combustion part through the side space defined around the process furnace body. Thus, the flammable components are processed so as not to be discharged outside through the combustion section repeatedly.

  Due to the combustion, the exhaust gas generated from the combustion part is discharged after performing a detoxification process through the exhaust treatment part. In the exhaust treatment section, exhaust gas is first passed through water to remove floating components and gas components that can be dissolved in water, and then the bad odor is removed through a treatment tube device that is said to have the property of removing odors. Therefore, the combustion gas can be processed by using a relatively simplified processing means. Furthermore, it is possible to suppress the generation of bad odors and harmful gases by providing an exhaust gas treatment means for purifying the waste by generating an electric heater and ozone in the treatment pipeline. In addition to the above actions and effects, when the exhaust gas is treated, the generated liquid component is returned again to the heat treatment part, sent back to the side space of the furnace body, and again combusted in the combustion part. Thus, the harmful components are processed in a raw state so as not to be released toward the outside air.

  The configuration of the embodiment of the present invention will be described in accordance with the illustrated example, but the combustion treatment apparatus of the present invention described below is a hazardous gas, off-flavor, etc. The case where it is configured as an apparatus that can be processed by burning at a relatively low temperature without generating the above is described. Moreover, in the following examples, as combustible waste to be treated using the combustion treatment apparatus, in addition to paper waste, many combustible wastes such as food waste and other combustible organic matter The objects to be treated are collectively described below as combustible waste.

  In addition, if it is an apparatus which has a processing function which can show | play the objective effect | action and effect of this invention, with respect to the Example illustrated below, a detailed structure according to the environment of a processing plant. Of course, it can be appropriately changed. In the following explanation, the action and state of heat treatment for burning combustible waste such as waste at a low temperature will be referred to as “smoked”, but this is a general term for the steamed state and is open. Unlike the case where the flame is blown up and burned, the steaming is performed in a closed environment while supplying a small amount of air, and the center is burned at a high temperature. To process.

  When combusting the combustible waste using the apparatus described in the present invention, the whole is combusted at a high temperature of about 1000 to 1200 ° C. as in the case of processing general waste etc. Rather, as will be described below, the processing is performed in the state where the combustion temperature is set at the high temperature at the center of the combustion portion, and the surrounding portion is steamed at a relatively low temperature. Then, when performing the combustion treatment, the volatile components such as moisture and gas bodies are separated from the object to be treated, and the combustible portion such as the remaining carbon component is supplied to the combustion portion while supplying a small amount of air. It is made to perform the process which burns in the center part. Further, the component evaporated or volatilized from the object to be processed by the heat generated in the central part is cooled in a side space provided around the combustion part, and is made into a gas or liquid having a large specific gravity, It is supplied from the lower part of the main body toward the combustion part and can be directly subjected to the combustion treatment. In the following description, the process of burning such combustible materials will be described using the general expression “combustion treatment of combustible waste”.

  In the illustrated example, FIG. 1 is an external view of the combustion processing apparatus 1, and FIG. 2 is a schematic explanatory view showing the configuration of the combustion processing apparatus. FIGS. 3 and 4 are a front view and a rear view of the apparatus, respectively, and FIG. 5 and subsequent drawings explain the detailed configuration of each mechanism. As shown in FIGS. 1 and 2, the combustion treatment apparatus 1 is provided with a front insertion portion 10 on the front side of the apparatus main body 2. In the apparatus main body 2, an upper portion is disposed on the combustion treatment section 30 disposed in the lower portion. An inlet 21 is provided. And the combustible waste thrown in from the said front charge part is deposited in the combustion process part 30 via the upper charge port 21, and the process which burns is performed. The exhaust gas generated by burning the combustible waste in the combustion processing unit 30 and the evaporation components generated from the combustible waste are processed to remove harmful substances through the combustion processing unit 30 and communicated with each other. After performing a process such as deodorizing through 60, it is discharged toward the outside air.

  As shown in FIG. 2, when combustible waste is supplied toward the combustion section of the apparatus main body 2, the opening / closing lid 11 of the front input section 10 is opened, and the combustible waste is introduced into the interior. In addition to the opening / closing lid 11 that divides the inside and outside, the front throwing portion 10 is provided with a shutter 18 that divides the combustion processing portion 30. Inside the front throwing portion 10, the pusher 12 is shown in the figure. In order to move in the left-right direction, a driving device 13 is provided. As the driving device 13, a mechanism for moving the pusher 12 in the left-right direction in the figure using a chain 16 driven by a motor 14 is used.

  When supplying the combustible waste charged into the front input unit 10 to the combustion processing unit 30, the shutter 18 is opened and then the combustible waste is sent to the combustion processing unit 30 by the pusher 12. To be deposited inside. Note that a pressing rod 22 is swingably provided through a support shaft at an upper inlet 21 serving as an upper chamber of the combustion processing unit 30. Then, in a state where the pressing bar 22 is swung up and the insertion port is not obstructed, combustible waste is thrown into the combustion processing unit 30 and accumulated, and then the pressing bar 22 is swung, It is placed on the combustible waste and the combustible waste is pressed by the weight of the pressing rod. The pressing rod 22 may be a combination of a plurality of rod-shaped members in a saw-like shape, or a combination of narrow plates or the like, but has an appropriate weight. By the pressing rod 22 configured as a thing, the combustible waste accumulated in the combustion processing unit 30 is lightly pressed so that no gap is generated in the combustible waste.

  2 to 4, the combustion processing unit 30 divides a portion for burning combustible waste with an inner wall 32, and covers the outer side of the partition with the inner wall 32 with an outer wall 31. A furnace surrounding space 33 is formed between the walls. An upper part of the furnace surrounding space 33 communicates with the inside of the combustion part, and a lower part communicates with the lower part of the combustion part. A gas body generated by combustion in the combustion processing part 30 is provided in the furnace. It is lowered while cooling in the surrounding space 33 and supplied again toward the inside of the combustion processing unit 30.

And in the state mixed with the external air supplied to a combustion part, it uses for combustible gas as it is, and processes so that it may not be discharge | released to external air. Therefore, the malodorous component contained in the vaporized gas body is also made harmless by releasing it from the furnace surrounding space 33 and heat-treating it through the combustion section. In the example shown in FIG. 2, the portion corresponding to the bottom of the inner wall 32 is denoted by reference numeral 32a, and the bottom portion of the outer wall 31 is denoted by reference numeral 31a. The lower portion of the surrounding space 33 of the combustion processing unit 30 is defined as spaces 39 and 39 a, and the lower space is provided in the lower member 5.
Note that the bottom portion 32a of the inner wall 32 may be provided as an opening communicating with the lower member without actually providing anything, but in addition, a lattice-like one is provided to drop unburned residue debris. It may be configured as.

  As shown in the front view shown in FIG. 3, the apparatus main body of the combustion treatment apparatus 1 has a front insertion portion 10 that protrudes forward, and is formed in a box shape. The opening provided so that it can be peeked if necessary is provided so that it can be opened and closed by the door 38a. An air supply member 40a is attached to the open / close door 38a so as to blow in and supply outside air, and the outside air is blown from the supply member into the inside through a magnetic field. In addition, an opening for discharging burning residue is provided at the lowermost portion of the combustion processing unit 30, and the opening is closed by the lid member 7.

  FIG. 4 shows the structure of the back surface of the apparatus main body, and an opening door 38b and an air supply member 40b are provided at the bottom of the back surface of the apparatus, as in FIG. Further, the opening for discharging the burning residue when necessary is closed by the lid member 40b, and the lid member is opened so that the combustion residue of combustible waste can be discharged at any time. In the example shown in FIG. 4, the exhaust processing unit 60 is disposed in the rear portion of the apparatus main body, and the exhaust processing unit 60 is disposed in such a manner that the pipes 62, 62a,. . The exhaust gas generated in the combustion processing unit 30 passes through the tank 61 filled with water, and then passes through the smoke processing unit path 62. To let it drain.

Further, one air supply member 40, 40a to 40c is arranged on the front and rear and left and right of the main body 2 for the combustion processing section 30 of the apparatus main body 2, and as will be described later, this air supply member In 40..., A magnet is provided so as to surround the air passage so that air that has passed through a magnetic field is used for combustion. The specific configuration of the air supply member will be described later. In the example described in FIGS. 2 to 4, the space of the combustion part surrounded by the inner wall of the combustion processing part 30 has a large upper cross-sectional area and a lower area as shown by a chain line in the figure. As described above, the combustion wall section is formed by the inner walls 50 to 50 c narrowed in a substantially tapered shape.
The tapered diaphragm shape (inclined shape) narrowed downward, which is formed on the inner wall 32, is a result obtained by actually burning an object to be treated that would most likely be treated. Design based on the above.

  As described above, since the lower part is configured to be tapered, the combustible waste that is put into the combustion processing unit and subjected to the combustion processing is changed from the state of the garbage when it is put into the combustion unit. It is made to respond | correspond to the volume decreasing by drying gradually as it falls. Further, in the lower member 5 as a lowermost space for storing unburned residue, ash or ceramics or non-burnable material such as metal is stored as unburned residue. The volume of the component is very small. The tapered space surrounded by the inner wall in the combustion processing unit 30 can be formed with an arbitrary ratio in the ratio of the upper and lower portions thereof, and is appropriately set in accordance with the property of the combustible waste as a target. It is possible to form.

  FIG. 5 shows the relationship between the inner and outer walls in the combustion processing section 30, the mechanism for supplying air to the combustion section, and the mechanism for guiding the combustion gas generated from the combustion section to the furnace surrounding space 33. It is configured as follows. In this example, an opening 37 provided at the front and rear of the apparatus main body is provided through the inner and outer walls 31, 32, and a door 38 for closing the opening 37 is provided so as to open and close the opening. With respect to the furnace surrounding space 33 formed between the inner and outer walls 31, 32, the combustion gas is circulated through the spacer 34 and the slit 35 provided in the inner wall 32 above the inner wall 32. . A large opening is formed in the lower part of the furnace surrounding space 33 so as to directly communicate with the lowermost space 39 of the combustion processing unit 30.

  In order to blow outside air into the combustion processing unit 30, air supply members 40 to 40c for supplying air from the front, rear, left and right sides of the side of the furnace body are provided in four directions. The two sets of opposing members of the air supply member are arranged in a state where the axes thereof are perpendicular to each other in a plan view but are slightly different in height. From each of the air intake members, as will be described later, air that has passed through a magnetic field can be supplied toward the inside of the heat treatment section in a state in which the flow rate can be appropriately adjusted.

  The air supply member 40a provided so as to penetrate the door 38 and the air supply member 40 provided on the side are configured as illustrated in FIG. A valve 42 is provided on the outside of the apparatus main body for the penetrating pipe 41 so that the air supply amount can be adjusted manually. Further, outside the valve 42, N / S poles 43 and 43a of magnets are arranged so as to face each other with a pipe interposed therebetween, and air through a magnetic field is supplied to the combustion processing section. Further, a protective cover or a cover member 44 provided with a hole of a predetermined size is provided on the exposed part of the pipe outside the magnetic field, so that extraneous matter is added to the outside air used for combustion. Protects from entering.

  In the apparatus 1 configured as described above, combustible waste that is put into the combustion processing unit 30 and subjected to combustion processing is stacked in a substantially layered manner and sequentially heat-treated from the lower part thereof, as illustrated in FIG. Become so. In the illustrated example, the combustible waste stacked inside the combustion processing unit 30 is provided as an untreated layer A in which a pressing force is always applied by the weight of the combustible waste and the pressure applied by the pressing rod 22. In addition, in the intermediate layer B pressed by the weight of the untreated layer A or the like, the heat easily applied from the combustion layer C evaporates a component that easily evaporates such as moisture or other components that easily evaporate, As the volume gradually decreases, the weight decreases. Then, an action of being pushed down in a state of being consolidated toward the combustion layer C is added. In the combustion layer C, the outside air blown through the air supply member 40 and the combustible gas component returned from the lower side through the side space 33 are combusted so as to be supplied to the object to be processed.

  In the combustion section C for combusting the combustible waste, an action of burning at a high temperature of about 1200 ° C. is performed with a small amount of air supplied from outside through the air intake member toward only a part of the center. Is called. Then, outside the high-temperature combustion section, the temperature is gradually lowered and the smoldering is performed at a low temperature as a whole (treatment in a steamed state), and combustion is performed in a state where a small amount of oxygen is supplied. . In the low-temperature combustion section, the heat generated from the high-temperature combustion section in the center is in a state where the moisture and volatile components of the workpiece are separated from the solid, and the solid is supplied toward the high-temperature combustion section. Is done. Further, the remaining solid matter burned is accumulated as a deposition layer D in the internal space of the lower member 5 at the lower part of the combustion portion. This combustion residue is an ash component that is a general burning residue, an inorganic material such as clay and ceramics that does not burn, a metal component, etc., and these remaining residues are provided before and after the lower member 5. From the openings 6 and 6a, the lid members 7 and 7 are opened and scraped out at any time and discharged.

  The outside air supplied to the combustion section C comes through a magnetic field provided in the air intake member 40..., And a part of the air component is ionized by passing through the magnetic field. Supplied. By using oxygen ionized through the magnetic field for combustion, it is possible to improve the combustion efficiency, and the effect that the generation of harmful gas from the combustion part can be suppressed as much as possible. Presumed to play. Therefore, the air supply member forms a magnetic field by arranging the N and S poles of the permanent magnet so as to sandwich the pipe 41 from above and below the portion exposed to the outside of the combustion portion. . The air sucked into the combustion processing section through the pipe 41 is supplied through the magnetic field, and the air partially ionized through the magnetic field is used for combustion.

  Combustible waste is combusted in the combustion layer C using air blown through the four air supply members 40 to 40c and air (part of combustion gas) supplied from the lower part of the furnace surrounding space 33. The action is performed. In the combustion layer C, combustible waste is mainly burned at a high temperature in the middle part of the air supply member disposed before and after the combustion processing part and on the left and right, and the periphery thereof. This part is considered to be heated by the heat generated in the high-temperature combustion part. In this embodiment, the action of burning and combusting the combustible waste inside the furnace body 30 is concentrated in the combustion portion C where the air passing through the magnetic field is concentrated so as to intersect. The air supplied from each of the air supply members is fed toward the center of the combustion unit 30 and concentrated toward the center of the heat treatment unit of the combustible waste deposited inside It is considered that air supply and combustion action are performed so that outside air is supplied.

  Furthermore, in the upper part of the combustion part C, the heat which generate | occur | produces from a combustion part is applied with respect to the intermediate | middle layer B of the upper part, and the process which dries combustible waste is performed. Therefore, in the combustion layer C, it is not necessary to evaporate moisture from combustible waste and then burn it, so that the heat treatment in the combustion layer C can be performed efficiently. By the combustion treatment in the combustion part C, only the unburned components fall and accumulate in the space part 39 of the lower member 5. As described above, as the combustible waste is combusted, new processed products are sequentially lowered from the upper intermediate layer B, and in the combustion layer C into which air through the magnetic field from the air intake member is blown, A process of supplying a small amount of air to burn combustible waste is performed, and unburned ash or the like is opened from the opening of the cover member (lid member) 7 provided in the opening on the side of the lower member 5. It can be taken out and processed appropriately.

  In addition, although the combustion (sintered) temperature in the combustion layer C is estimated to be 200 to 350 ° C., the temperature of about 1200 ° C. is locally at the center of the heat treatment portion C. It has been observed by the inserted measuring instrument. And it is estimated that a harmful gas component such as dioxin may be generated in a part of the periphery of the high-temperature combustion part that is locally generated in the heat treatment part.

  However, even if such harmful gas components are generated from a part of the periphery of the combustion part, the exhaust gas is exhausted from the part where the harmful gas is generated through the high temperature part, so that The chemical treatment is naturally and automatically performed so that is decomposed by heat. And it is estimated that it is discharged | emitted from an exhaust part as a detoxified gas component. Therefore, even if no particular solution is taken, harmful gases that pass through the heat treatment section are automatically decomposed by flowing so as to come in contact with portions of an appropriate temperature suitable for decomposing the surrounding gas. It is presumed that this action will be added.

  A lower member 5 for storing combustion debris is provided at the lower part of the combustion processing unit 30 to condense the remaining ash, the vapor generated from the combustible waste, etc. The function of storing is imposed on the lower member 5. Further, in the furnace surrounding space 33 provided so as to surround the combustion processing unit 30, moisture and dry distillation gas generated from the combustion gas and combustible waste are collected, and the discharged gas is transferred to a portion where the temperature of the outer wall is low. As the temperature decreases and the specific gravity increases, the temperature gradually decreases and is moved into the lower member 5. And it is hold | maintained in the state absorbed by the combustion debris accumulated inside the said lower member 5, is vaporized again with the heat transmitted from a combustion part, and is returned to a combustion part. Alternatively, a state in which the liquid component is sucked up to the combustion part by capillary action occurs, and most of the liquid component accumulated in the lower member 5 is moved toward the combustion layer C and burned again. Heat treated.

  Therefore, even if other liquid components such as moisture, tar components, and pyroligneous acid liquid accumulate in the lower portion of the combustion processing unit 30, it is considered that there is no problem with processing of burnt residue containing those components. . In addition, it is considered that the occurrence frequency of the state in which a large amount of the liquid component is contained in the burning residue accumulated in the lower member 5 is very low. And when a state where the burnt residue cannot be thrown away as it occurs, the debris that has been made harmless may be discarded by mixing it with new combustible waste again and burning the remaining residue again. It will be. Further, as shown in FIG. 2, the open / close shutter 18 disposed between the combustion unit and the charging unit closes the space between the combustion processing unit 30 and the front charging unit 10, so that the combustion processing unit The combustion gas generated from 30 is not discharged toward the front input portion 10 provided with the opening. The exhaust gas generated from the combustion section is only discharged toward the furnace surrounding space 33, and a part of the exhaust gas is discharged from the furnace surrounding space 33 toward the exhaust treatment section 60.

  In the example shown in FIGS. 2 and 4, in the exhaust processing unit 60 provided in the rear part of the apparatus main body, the pipe 62 is in a state of being vertically meandered by connecting the vertical pipe 62 using the connection pipes 65 and 6a. Since the assembly is configured, it can be configured by incorporating a number of vertical pipes as necessary. In the exhaust processing section 60, the pipe members 62 as straight vertical pipe members are configured as an assembly in which a thin pipe 64 is inserted into a thick pipe 63, as described in FIG. The thick pipe 63 and the thin pipe 64 are each configured as a stainless steel pipe, and the thick pipe 63 has a circular cross section, but the thin pipe 64 inserted therein has a hexagonal cross section. Is used.

  Moreover, in the example shown in FIG. 9, the example which used the thing of a pentagon as the thin pipe 64a inserted in the said thick pipe 62a is used. In the example using the two vertical pipes 62, a pentagonal or hexagonal thin pipe is inserted in parallel into a thick pipe having a circular cross section, so that a small gap is formed between the aggregates of the thin pipes. Is formed. However, it is said that the stainless steel pipe can be made to bear the action of detoxifying the exhaust gas by using the vertical pipe for the treatment of smoke. In other words, as described in the present embodiment, an effect of detoxifying malodorous components and harmful gas components contained in the exhaust gas is imparted only by passing the exhaust gas through a bundle of stainless steel pipes. That is, although it is difficult to explain theoretically, as is generally explained, exhaust gas can be rendered harmless and is a very effective means.

  Further, an electric heater 67 is accommodated and provided in a part of the exhaust pipe path, for example, the pipe 66 at the final part of the pipe line in FIG. 4, and exhaust gas is exhausted through a high-temperature part where the heater 67 is heated red. To do. And, for example, even if a bad odor or harmful gas is contained in the exhaust gas at the end of the pipe line of the exhaust treatment unit 60, those harmful components may be released to the outside air in a raw state. It will also be prevented. The electric heater can be provided at an arbitrary position in the exhaust system, and the number of heaters and the heating temperature can be appropriately adjusted in accordance with the properties of the object to be processed for combustion. It is also possible to give consideration to the surroundings of the installed place. In the exhaust system, if the processing means 68 that generates ozone and treats harmful gas is provided at the end of the pipe 66 at the final end, the combustion state is set satisfactorily when the workpiece is burned and processed. Even when the harmful gas is discharged without being able to solve the worst condition, the harmful gas can be prevented from being discharged live.

When the waste gas discharged when the combustible waste was treated using the heat treatment apparatus was analyzed, the following results were obtained.
Various materials such as chemical fiber, wood pieces + paper, household waste, vinyl, rubber, wood pieces + vinyl, wood pieces + rubber were used as materials.
When each of the above materials was combusted using the apparatus of the present invention, the concentration of nodioxins in smoked ash was 0.043 (ngTEQ / g),
The concentration of dioxins in the exhaust gas was detected as 0,061 (ngTEQ / mn) when the filter was attached, and as 1.0 (ngTEQ / mn) when the filter was not used.

In addition to the dioxin concentration data, when other gas components in the smoke were detected, the following results were obtained.
Firewood material Paper + wood chip + vinyl chloride (equal weight)
Amount of sulfur oxide (Nm3 / h) Less than 0.001 Sulfur oxide concentration (ppm) Less than 3.7 Nitrogen oxide concentration (ppm) Cs ... Less than 9.4 Hydrogen chloride concentration (mf / Nm) Cs ... 35

  In addition to the exhaust gas, a residue such as ash after combustion was analyzed, and the amount of dioxin contained was as follows. This was a sample using the remaining ash that was burned by mixing paper and battery, and the PCB content was analyzed to be 0.11 mg / kg. This shows the results of analyzing the remaining ash components obtained during the combustion test from July to August 2005 by requesting Nisshin Environmental Research Center Co., Ltd. .

  As is known from the above measurement results, when the combustible waste is heat-treated (combustion treatment) using the apparatus having the function disclosed in the present embodiment, emission of harmful gases such as dioxins is suppressed. It becomes possible. In the apparatus disclosed in the present embodiment, the smoldering temperature in most parts except for the central part is very low, and it occurs when dry distillation is performed by reducing the amount of oxygen in the air. This is because the gas components are not discharged as they are, but are repeatedly used for burning combustible waste. And since it processes by burning a harmful gas in the part baked at the high temperature of the center part of a combustion part, it can estimate also because the discharge | emission amount of the harmful gas of a raw state becomes very small.

It is a perspective view explaining the external appearance of a heat processing apparatus. It is sectional drawing seen from the side surface of the heat processing apparatus. It is a front view of a heat processing apparatus. It is a rear view of an apparatus. It is sectional drawing of a combustion process part. It is explanatory drawing which shows the structure of an air supply member. It is explanatory drawing of the combustion in a combustion process part. It is sectional drawing of the smoke processing cylinder of an exhaust processing part. It is sectional drawing of another example of the said smoke processing cylinder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combustion processing apparatus, 2 Apparatus main body, 5 Lower member, 6 Opening,
7 Lid member, 10 Front loading part, 11 Opening / closing lid, 12 Pusher,
13 Drive unit, 18 Smoke shutter, 21 Upper input part,
22 pressure rods, 30 combustion processing section, 31 outer wall, 32 inner wall,
33 space around the furnace, 37 front and rear opening, 38 door, 40 air supply member,
41 pipe, 42 valve, 43 magnet, 50 taper inner wall,
60 exhaust treatment part, 61 water tank, 62 smoke treatment cylinder,
63 large-diameter pipe, 64 small-diameter pipe, 65 connecting cylinder, 66 exhaust cylinder. 67 Electric heater, 68 Ozone treatment part.

Claims (2)

A processing apparatus for stacking and depositing waste as an object to be processed in a furnace and combusting and processing in a combustion part set at a central part of a lower part of the object to be processed,
An upper part of the processing apparatus is provided with an input part for supplying an object to be processed, and a lower part is provided with a discharge part for taking out unburned ash components,
As the air supply members for supplying the outside air toward the combustion section, two sets of air supply members, one arranged in the front-rear direction of the apparatus main body and one arranged on both sides, are arranged at the height of the axis of each set. Arranged in a different state so that outside air can be supplied directly to the combustion section,
In a processing furnace body for burning and processing an object to be processed, an inner wall member surrounding a combustion part and an outer wall member in contact with the outside air are arranged at a certain interval, and a combustion gas is placed between the inner and outer walls. Provide a side space that can circulate the part,
Openings are provided in the upper and lower portions of the inner wall member so as to communicate between the side space and the combustion portion, respectively, and serve as a path for guiding combustion gas generated by combustion of the object to be processed, and in the upper portion of the side space. Is provided with a path for exhausting part of the combustion gas generated by combustion toward the outside air,
In the upper part of the side space formed between the inner and outer walls of the processing furnace, the combustion gas generated in the combustion part is brought into contact with the outside air and is cooled by being brought into contact with the outer wall member that is kept at a low temperature. A ventilation guide path for supplying the combustion gas having a higher specific gravity from the lower part of the side space toward the combustion part again,
In the lower part of the combustion part of the furnace body, there is provided a gap having a function of temporarily storing the ash component remaining in the combustion part and communicating the combustion part with the lower part of the side space. Characteristic waste treatment equipment. An object to be processed that is deposited in an inner wall member of the combustion part of the processing furnace body is further provided with a layer of a heat treatment part that performs a combustion treatment on an ash layer accumulated in a lower part of the combustion part. Then, it is positioned so that the layer to be dried by the heat of the heat treatment layer is stacked,
The upper layer to be dried is supplied to the heat treatment section while being pressed by the weight of the workpiece to be newly deposited from above, and the upper portion of the treatment furnace main body Provided with a pressing means for pressing the workpieces stacked in a downward direction,
In the air supply member for supplying outside air toward the combustion part, a magnet member is disposed in the air supply path so that air that has passed through a magnetic field can be supplied toward the substantially central part of the combustion part. The outside air supply can be adjusted,
In the combustion part of the heat treatment part, circulate a part of the combustion gas generated by the combustion of the object to be supplied from the lower part of the combustion part through the side space,
2. The waste treatment apparatus according to claim 1, wherein the combustion gas generated in the combustion section is again passed through the combustion section and treated with high heat .

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