KR100618141B1 - Apparatus for melting the incineraed ashes - Google Patents

Abstract

The present invention relates to a melting apparatus for melting incinerator ash, which is a general waste generated after incineration of industrial waste, into a particulate state. In order to be able to form in the form of particles containing no

Incineration material melting means for discharging the incineration material introduced into the melting furnace into the molten liquid while melting by combustion of the liquid fuel; The molten liquid discharged from the incineration ash melting means is provided with a pallet forming means formed in the collecting container is formed in a particulate state and collected in contact with the containing coolant, wherein the incineration ash melting means forms a molten space portion therein and the exhaust / discharge port on the bottom surface And an incineration ash supply member for supplying incineration ash, which is connected to the melting space portion, and a burner for burning the incineration ash supplied to the molten space portion by liquid fuel, wherein the nozzle of the burner is located at the center thereof. A primary air supply path for forming a fuel supply path to which liquid fuel is supplied, and supplying mixed air mixed with the liquid fuel to the outside of the fuel supply path, and air required for combustion outside the primary air supply path; It relates to a melting device of incineration ash, characterized in that the secondary air supply path for supplying a high pressure is formed.

Description

Apparatus for melting the incineraed ashes

1 is a cross-sectional view of main parts schematically showing the present invention.

FIG. 2 is a sectional view showing the main parts of the nozzle of the burner according to FIG. 1; FIG.

Figure 3 is a main part schematically showing another embodiment of the present invention.

Figure 4 is a main view schematically showing another embodiment of the present invention.

5 is a main view schematically showing another embodiment of the present invention.

6 is a main view schematically showing another embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

1: incineration ash melting means

10: melting furnace

   10a: door 12: inner wall

   14: melting space part 16: exhaust / discharge port

   18: see-through window

   110: incineration ash supply unit

   112: hopper 114: fixed-quantity injection valve

   120: burner

   122: fuel supply passage 124: primary air supply passage

   126: secondary air supply path

2: pallet forming means

   20: collection container 22: bulkhead

   24: exhaust passage

   200: pallet outlet

   202: discharge housing 202a: guide plate

   204: drive member 206: feed screw

   30: secondary combustion means

   32: blower 34: combustion chamber

   35 body 36 burner

The present invention relates to a melting apparatus for melting incinerator ash, which is a general waste generated after incineration of industrial waste, into a particulate state. The present invention relates to a melting device for incineration ashes which can be formed in a particle state not containing this.

In general, industrial wastes generated are mostly processed through an incineration process. Incineration ash produced by primary incineration as described above is a general waste floor material generated from residues of about 90% or more after incineration, and the flooring material. In addition, about 10% of the fly ash, which is a hazardous waste containing harmful components filtered by a filter and the like, is included as smoke during incineration.

As a result, the latter fly ash is subjected to reprocessing through special legal regulations in handling, processing and disposal due to its harmful components, and various kinds of materials for treating a large amount of flooring, which account for about 90% of the former, are processed. The solution is being proposed.

Herein, a description will be given of a device for treating incineration ash, which is a flooring material which accounts for about 90% of the former.

Recently, in order to treat a large amount of incineration ash as described above, in order to treat the incineration ash in a state where no pollutant is generated, an apparatus for melting at a high temperature of about 2000 ° C. or more is used.

In the case of the apparatus for raising the incinerator ash to a high temperature of about 2000 ° C. or higher in order to melt the incinerator ash, the first method is to melt the incineration ash by using a heat source by plasma spraying of the direct current arc. In this case, the thermal plasma of the direct current arc Since it requires a Chamston electrode and power for the DC arc to generate a significant cost, as well as had to be enlarged to generate a DC arc.

Second, in the case of a device using a liquid fuel such as kerosene or diesel, it is necessary to circulate the air by forcibly inhaling the air in the melting furnace due to the characteristics of the liquid fuel. Although it is inexpensive and compact compared to the use, the inside of the melting furnace is not higher than atmospheric pressure due to the air circulated, so it has a problem of not being raised to a high temperature for melting the incineration ash.

Accordingly, the present invention has been made to solve the conventional problems as described above, the purpose is to melt the incineration ash at a high temperature using a small fuel at a low cost and to form a particulate state containing no contaminants. There is.

Another object of the present invention is to make the incineration material injected easier to melt.

Another object of the present invention is to make the melting apparatus have a smaller volume.

Still another object of the present invention is to allow the incineration material to be injected in the melting furnace to be accurately metered.

Still another object of the present invention is to make it easy to discharge the granulated material from the collection container.

Another object of the present invention is to allow the pollutants contained in the exhaust gas to be exhausted in a completely removed state.

Still another object of the present invention is to facilitate the cleaning operation in the melting furnace.

The present invention for achieving the above object, the incineration ash melting means for discharging the incineration material introduced into the melting furnace into the melt while being melted by the combustion of the liquid fuel; The molten liquid discharged from the incineration ash melting means is provided with a pallet forming means formed in the collecting container is formed in a particulate state and collected in contact with the containing coolant, wherein the incineration ash melting means forms a molten space portion therein and the exhaust / discharge port on the bottom surface And an incineration ash supply member for supplying incineration ash, which is connected to the melting space portion, and a burner for burning the incineration ash supplied to the molten space portion by liquid fuel, wherein the nozzle of the burner is located at the center thereof. A primary air supply path for forming a fuel supply path to which liquid fuel is supplied, and supplying mixed air mixed with the liquid fuel to the outside of the fuel supply path, and air required for combustion outside the primary air supply path; It characterized in that the secondary air supply path for supplying a high pressure is formed.

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The exhaust / discharge port is characterized in that the size is formed to be discharged less than the amount of air supplied from the primary air supply path and the secondary air supply path of the burner.

The pallet forming means may be connected to the exhaust / discharge port to be hermetically sealed, and an exhaust path formed by a partition wall formed in the collection container may be formed.

The incineration ash supply member is characterized in that the inlet hopper is accommodated, and the quantitative inlet valve is mounted on the inlet to the molten space of the hopper and the melting furnace is connected.

The metered dose inlet valve is characterized in that a plurality is installed in the inlet.

The collection container is characterized in that the transfer screw rotated by a drive member installed to one side of the discharge housing is provided with a pallet discharge portion connected to the inner bottom surface of the collection container and the outside.

The discharge housing introduced into the collection container is characterized by forming a guide plate corresponding to the inner surface of the collection container.

The exhaust passage includes a secondary combustion means comprising a blower mounted at a portion connected to the exhaust passage, and a combustion burner mounted outside the main body to be connected to a combustion chamber inside the main body connected to the blower. It features.

One side of the melting furnace is characterized in that it has a cleaning door that one side is hinged to open and close.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing main parts of the present invention, and FIG. 2 is a cross-sectional view showing main parts of the nozzle of the burner according to FIG. 1.

As shown in the figure, in order to melt the incineration ash, which is a bottom ash, which occupies about 90% of general waste generated after incineration of industrial waste, in the form of particles to be treated again in a state where no pollutant is generated,

The incineration ash melting means (1) for melting the incineration material introduced into the melting furnace 10 to form a low-cost and compact to a high temperature of about 2000 ℃ by the combustion of a liquid fuel such as diesel or kerosene and discharged into the molten liquid;

The hot melt discharged from the incineration ash melting means is contacted with a cooling liquid such as ordinary water contained therein, and is formed as a pellet forming means (2) formed with a collecting container () formed while solidifying in a particulate state.

In the above, the incineration ash melting means 1 forms a molten space portion 14 formed therein by the inner wall 12 of a conventional fire retardant, and the combustion gas and the melt can be exhausted and discharged at the same time on the bottom surface. An incineration material supply member 110 connected to the melting furnace 10 in which an exhaust / discharge port 16 is formed, and connected to the melting space part to supply an incineration ash in a predetermined amount through a conventional feed screw or a fixed-quantity feeder; It is composed of a burner 120 for burning the incineration material supplied to the molten space by a liquid fuel such as light oil or kerosene.

The nozzle of the burner 120 forms a fuel supply path 122 through which a liquid fuel is supplied at the center, and supplies mixed air for mixing with the liquid fuel and forming a sprayed state on the outside of the fuel supply path. The secondary air supply passage 124 and the secondary air supply passage 126 for supplying the air necessary for combustion to the outside of the primary air supply passage and at the same time supplying the high pressure so as to form a vortex are formed, thereby forming inside the melting furnace. The secondary air flowing into the high pressure allows the generation of vortex and the doubler internal pressure to be increased.

In addition, the nozzle of the burner 120 is preferably formed to be inclined toward the input path of the incineration ash supply member 110, so as to have a maximum contact area with the incineration ash that is inserted into the fire when burning the burner.

The burner is also provided with ordinary ignition means, not shown.

On the other hand, the exhaust / discharge port 16 is formed by the size that can be discharged less than the amount of air supplied from the primary air supply path 124 and the secondary air supply path 126 of the burner 120, It is desirable to allow the internal pressure of the melting furnace to be quickly increased by the amount of air supplied from the burner.

In addition, one surface of the melting furnace 10 is provided with a conventional cleaning door 10a in which one side is hinged to open and close, so that the incineration is melted and discharged by combustion in the melting space of the melting furnace as described above. It is preferable to make it possible to cleanly remove the fine debris remaining on the inner wall or bottom surface of the molten space portion.

As configured as described above, a certain amount of incineration ash is introduced into the melting space portion of the melting furnace by an incineration ash supply member such as a conventional conveying screw or a metering feeder.

As such, the incineration material is injected and the liquid fuel and the primary air are mixed and sprayed by the burner installed in the melting furnace, and the combustion air, which is the secondary air, is supplied at a high speed so that vortices are generated in the melting space of the melting furnace. In this case, as the exhaust / discharge port of the melting furnace is exhausted with a smaller amount of air supplied through the first and second air supply passages of the burner, the internal pressure of the melting space of the melting furnace increases.

Then, when the liquid fuel on the spray is ignited by the ignition means (not shown), the combustion of the liquid fuel is diffused to the whole of the melting space part, and the molten space part becomes high temperature due to the expansion of the gas as the temperature becomes higher.

As a result, the pressure of the melting space of the melting furnace is increased to about 2000 ° C., which is considerably higher than the atmospheric pressure, so that the liquid fuel in the spray is completely burned, and the combustion temperature is increased. The molten liquid is formed in the same state as the state, and the molten liquid flows through the bottom surface and is discharged together with the exhaust gas cleaned by the complete combustion through the exhaust / exhaust port and dropped to the collecting container of the pallet forming means.

In this way, the molten liquid falling into the collecting container is solidified in the form of particles while being in contact with the cooling liquid of the collecting container so as to sink and accumulate downward.

Therefore, in the present invention, the incineration ash is melted at a high temperature using a liquid fuel, and then formed into a particle form, so that a large amount of incineration ash can be processed quickly and smoothly without contaminants. The volume of is also an ancillary condition to reduce the volume of the melt by about 1/6.

On the other hand, the treated material in the form of particles formed as described above is a pure material that does not contain contaminants, and also has the conditions that can be used as a raw material of various building materials or recycled as roads or flooring materials.

In addition, through the door formed on one side of the melting furnace it is possible to cleanly remove the fine foreign matter in the molten space portion has a condition that the combustion operation can be made in a cleaner state during the combustion operation again.

Reference numeral 18 is a general viewing window installed to identify the melting space of the melting furnace from the outside.

3 is a main view schematically showing another embodiment of the present invention.

In the above-described configuration as shown, in order to make the volume of the melter of the present invention smaller and more compact,

The pallet forming means 2 is connected to the exhaust / discharge port 16 formed in the bottom surface of the melting furnace 10 of the incineration material melting means 1 to be sealed and formed in the interior of the collecting container 20 ( 22 shows an exhaust path 24 through which the exhaust gas combusted by 22 is exhausted.

Accordingly, the incineration material melting means and the pallet forming means are formed in an integrated form in a separate form, so that the incineration material melting means and the pallet forming means are provided on the same installation area, so that smaller and smaller size can be realized.

4 is a main view schematically showing another embodiment of the present invention.

In the above configuration as shown, in order to be able to accurately inject a small amount of incineration material to the melting space portion of the melting furnace,

The incineration ash supply member 110 shows that the hopper 112 in which the incineration ash is accommodated, and a fixed-quantity inlet valve 114 such as a conventional rotary valve, etc. are mounted in an input passage to which the molten space of the hopper and the melting furnace are connected. will be.

Therefore, by injecting the incineration ash injected into the melting space portion of the melting furnace in the correct amount, it is to have a condition that can always maintain a constant combustion efficiency due to the incineration injected into the melting space in a certain amount.

In addition, by forming a plurality of quantitative inlet valve 114 in the same line in the input furnace, the amount of incineration material injected into the melting space of the melting furnace to be input in a more accurate amount, more continuous combustion efficiency There is also a condition to increase.

5 is a schematic view schematically showing another embodiment of the present invention.

As shown in the above configuration, in order to more easily discharge the treated material formed in the form of particles in the collecting container of the pallet forming means after being melted and discharged in the incineration ash melting means,

The collecting container 20 has a pallet discharge part connected to the inner bottom surface of the collecting container and the outside by a conveying screw 206 rotated by a driving member 204 such as a motor installed to one side of the discharge housing 202. It is shown to have 200.

Accordingly, the treatment solidified in the particulate state while being in contact with the cooling liquid of the collection container can be smoothly discharged by the pallet discharge part, that is, the treatment is accumulated in the collection container by a transfer screw rotated by the drive member. Water can be discharged to the outside more simply and conveniently.

In addition, by forming a guide plate 202a corresponding to the inner surface of the collection container in the discharge housing 202 introduced into the collection container 20, the stacked processing object is dropped into the collection container and solidified in a particulate state. It is preferable to stack the transfer screw directly so that the discharge can be made more smoothly.

6 is a schematic view schematically showing another embodiment of the present invention.

In the above configuration as shown, in order to be able to completely burn out the small amount of pollutants contained in the combustion gas exhausted to the outside through the exhaust passage formed in the collecting container,

The exhaust passage 24 of the collection container 20 includes a blower 32 mounted at a portion connected to the exhaust passage, and a combustion chamber 34 inside the main body 35 connected to the blower. It is shown to have a secondary combustion means 30 composed of a burner 36 for combustion mounted on the outside.

Therefore, the exhaust gas exhausted after being burned in the melting furnace is rapidly introduced into the combustion chamber by the blower of the secondary combustion means and burned again by the burner for combustion, so that the very pollutants contained in the exhaust gas It is completely burned and exhausted.

On the other hand, it is preferable to provide a dust collecting means such as a known cyclone in the exhaust port of the combustion chamber so as to remove the fine dust contained in the exhaust gas.

As described above, the present invention enables the incinerator ash melting apparatus to be melted at a high temperature by using a liquid fuel at a low cost, and can be formed in a particulate state free of contaminants. Not only can it be minimized, but a large amount of incinerators can be quickly treated with a minimum volume in a short time without containing pollutants.                     

In addition, by increasing the internal pressure of the melting furnace as possible at the same time as the nozzle of the burner is installed as a portion injecting the incineration ash, the combustion efficiency is high, as well as the effect that the injected incineration ash can be more easily melted.

Further, by providing the incineration material melting means and the pallet forming means on the same installation area, it is possible to have a smaller volume and to further reduce the size.

In addition, by allowing the incineration material to be injected into the melting furnace in a precise quantitative manner through the metering valve, it has the effect of having a constant combustion efficiency in the furnace.

In addition, it also has the effect that it is easier and easier to discharge the processed material granulated and stacked through the pallet discharge portion provided in the collecting container.

In addition, the combustion of the exhaust gas by the secondary combustion means again has the effect of allowing the exhaust gas to be completely removed even in the state in which extremely pollutants contained in the exhaust gas are removed.

In addition, through the door formed on one side of the melting furnace, foreign matters formed on the inner wall and the bottom surface in the melt more easily and cleanly has the effect that the next combustion operation can be made more smoothly.

Claims (12)

delete delete Incineration material melting means (1) for discharging the incineration material introduced into the melting furnace (10) into the molten liquid while melting by combustion of the liquid fuel; Wherein the molten liquid discharged from the incineration ash melting means is provided with a pallet forming means (2) is formed in the collecting container 20 is formed in the form of particles while being in contact with the contained coolant, The incineration material melting means 1 is a melting furnace 10 having a melting space 14 formed therein and an exhaust / exhaust port 16 formed at the bottom thereof, and an incineration material for supplying an incineration material connected to the melting space portion. It is composed of a supply member 110 and a burner 120 for burning the incineration material supplied to the molten space portion by the liquid fuel, The nozzle of the burner 120 forms a fuel supply path 122 through which a liquid fuel is supplied at the center, and supplies a mixed air mixed with the liquid fuel to the outside of the fuel supply path 124. And a secondary air supply path (126) for supplying air required for combustion at a high pressure to the outside of the primary air supply path. delete The exhaust / exhaust port 16 is sized to discharge less than the amount of air supplied from the primary air supply passage 124 and the secondary air supply passage 126 of the burner 120. Melting device of incineration ash, characterized in that formed. According to claim 3, The pallet forming means 2 is connected to the exhaust / discharge port 16 to be sealed and the exhaust passage 24 by the partition wall 22 formed in the collecting container 20 is formed Melting device of incineration ash, characterized in that the. According to claim 3, wherein the incineration ash supply member 110 is characterized in that the inlet hopper 112, the incineration ash is accommodated, and the fixed-quantity injection valve 114 is mounted on the input passage to which the molten space of the hopper and the melting furnace is connected. Melting apparatus for incineration ash. 8. The melting device of incineration ash according to claim 7, wherein a plurality of metered dose valves (114) are installed in the inlet. According to claim 6, The collecting container 20 is connected to the inner bottom surface and the outer surface of the collecting container is rotated by the transfer screw 206 is driven by the drive member 204 installed to one side of the discharge housing 202 The melting device of incineration ash, characterized in that it comprises a pallet discharge portion 200. 10. The incinerator melting apparatus as set forth in claim 9, wherein a guide plate (202a) corresponding to an inner surface of the collection container is formed in the discharge housing (202) flowing into the collection container (20). According to claim 6, The exhaust path 16 of the main body so as to be connected to the blower 32 mounted on the portion connected to the exhaust passage and the combustion chamber 34 inside the main body 35 connected to the blower An incinerator melting apparatus, characterized in that it comprises a secondary combustion means (30) composed of a burner (36) for combustion mounted on the outside. The melting device of incineration ash according to claim 3, wherein one surface of the melting furnace (10) is provided with a cleaning door (10a), one side of which is hinged and opened.

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