WO2007123303A1

WO2007123303A1 - Vortex circulation type incineration device

Info

Publication number: WO2007123303A1
Application number: PCT/KR2007/000333
Authority: WO
Inventors: Sung Ae Cho; In Jae Moon
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-26
Filing date: 2007-01-19
Publication date: 2007-11-01
Anticipated expiration: 2008-10-26
Also published as: KR100704846B1

Abstract

The present invention provides a vortex circulation type incineration device, which includes a first incinerator having a waste drop opening formed at an upper end thereof, an ash disposal part formed at a bottom end thereof and a heating burner provided at a lower side thereof; a second burning chamber having a cone type perforated plate installed therein and formed with a plurality of vent holes and at least one igniting burner provided at a inside thereof, and being connected to the first incinerator by an exhaust pipe at an upper end thereof; an air-circulating/dust-collecting chamber connected to the second burning chamber by a connection pipe and having an air inflow entrance formed at an upper end thereof, through which outside air is flowed in, and a perforated panel installed at an inside upper end thereof and formed with a plurality of inflow holes; and a circulation pipe one side thereof being connected to a lower end of the air-circulating/dust-collecting chamber and the other side thereof being connected to a lower side of the first incinerator, thereby capable of removing a various toxic substances contained in the exhaust gas and thus preventing air pollution by repetitive process in that the exhaust gas generated in a first incinerator is instantly compressed and exploded in a second burning chamber, and the exhaust gas is circulated with a vortex by a cone type perforated plate.

Description

VORTEX CIRCULATION TYPE INCINERATION DEVICE

Technical Field

[1] The present invention relates to an incineration device for incinerating wastes, and more particularly, to a vortex circulation type incineration device which is environment friendly as incomplete combustion exhaust gas generated during an incineration of wastes is instantly compressed and exploded at the same time so as to generate vortex and thus toxic gases causing air pollution can be removed by vortex circulation of the incomplete combustion exhaust gas, and which is constructed with a relatively simple structure and thus a cost for installation is inexpensive. Background Art

[2] Generally, an incineration device is constructed with an incinerator for burning wastes, a boiler for utilizing exhaust gas with a high temperature discharged from the incinerator as energy, a reactor and a bag filter for removing toxic gases and foreign substances from the exhaust gas passed through the boiler, and a chimney for discharging clean exhaust gas into the ambient air. The incineration device burns the wastes by inhalation of excess air and it is difficult to burn the wastes at a high temperature as the wastes contain much moisture, which causes a limitation in an increase of a caloric volume.

[3] In addition, the exhaust gas generated during the burning of the wastes contains various toxic gases and thus is treated with chemicals for removing the toxic gases, but there are problems that there is a limitation in transforming the toxic gases to clean gases and it takes much operating cost as using various chemicals such as a calcium hydroxide, an activated carbon and ammonia.

[4] Furthermore, seriousness of an environmental trouble and social conflicts related to a trouble of environmental pollution are increased day and day, and dispute between an administrative agencies and residents or between regional communities become serious in relation to location, construction and operation of waste disposal facilities.

[5] Meanwhile, various incineration devices have been suggested and, as an example,

"Vortex type waste incineration device" in Korean utility model registered No. 318849 has been suggested.

[6] The device includes, as described in its claims, a incinerator formed with a waste storage chamber at a lower inside thereof and a burning chamber and an air vent at an upper side of the waste storage chamber; a case surrounding the incinerator so as to form an air passage between the incinerator and the case, formed with a air inlet at a lower side thereof and a exhaust pipe at an upper surface thereof; an igniting means for burning wastes stored in the waste storage chamber; a partition for dividing the air passage into a first air passage at an upper side thereof and a second air passage at a lower side thereof; a blowing means for forcibly blowing air, which is flowed into the first air passage, to the burning chamber via the second air passage, a guiding means for preventing the air supplied to the burning chamber by the blowing means from being flowed into the exhaust pipe and guiding the air to the burning chamber which provided at a upper inside of the case; an air nozzle provided at a lower side of the exhaust pipe to inject air into exhaust gas inhaled to the exhaust pipe so as to burn incomplete combustion products contained in the exhaust gas; and a waste supplying means for supplying wastes to the waste storage chamber; wherein the incinerator and the case are formed with a coiled embossing part helically wounded at inside walls thereof respectively and a trough is formed between the embossing parts.

[7] In another example, "waste incineration device" in Korean utility model registered

No. 397586 includes, as described in its claims, a incinerator provided with a waste dropping hopper formed at an upper end thereof, a burning chamber for burning wastes therein and an ash outlet at a lower end thereof; a waste heat boiler installed at a portion of the incinerator so as to be connected to the incinerator by a pipe for producing high temperature vapor by using recirculation gas discharged from the incinerator as a heat source; a reactor installed at a portion of the waste heat boiler so as to be connected to the waste heat boiler by a pipe for lowering a temperature of the recirculation gas discharged from the waste heat boiler and removing toxic gas; a bag filter installed at a portion of the reactor so as to be connected to the reactor by a pipe and provided with a filter therein for removing toxic gas contained in the recirculation gas discharged from the reactor; a recirculation gas recirculating means provided with a supplying pipe for connecting the bag filter and the burning chamber so as to re- circulate the recirculation gas discharged from the bag filter into the burning chamber of the incinerator and a blower provided on the supplying pipe for blowing the recirculation gas; and an air supplementing means connected to the supplying pipe for selectively supplementing air according to an amount of the recirculation gas.

[8] Therefore, various toxic gases contained in the exhaust gas are removed by re- circulating the exhaust gas generated in the incinerator and using the exhaust gas as a heat source, and thereby a cost due to use of variety of chemicals can be reduced.

[9] However, there are problems that it is difficult to expect a great effect as a combustion efficiency of the recirculated exhaust gas is low and a cost for installation is expensive as the structure is complicated. Disclosure of Invention Technical Problem [10] The present invention has been developed in order to solve the above and other problems associated with the conventional incineration device, and an object of the present invention is to provide a vortex circulation type incineration device, which is environment friendly as it is able to remove almost of a variety of toxic substances contained in exhaust gas and thus prevent air pollution by repetitive process in that the exhaust gas generated in a first incinerator is instantly compressed and exploded in a second burning chamber, and the exhaust gas is circulated with a vortex by a cone type perforated plate, and the exhaust gas passed through the second burning chamber is mixed again with clean air inhaled from an outside of the device and recirculated into the first incinerator, and which is constructed with a relatively simple structure and thus a cost for installation is inexpensive. Technical Solution

[11] In order to achieve the above object, a vortex circulation type incineration device according to the present invention includes a first incinerator having a waste drop opening formed at an upper end thereof, an ash disposal part formed at a bottom end thereof and a heating burner provided at a lower side thereof; a second burning chamber having a cone type perforated plate installed therein and formed with a plurality of vent holes and at least one igniting burner provided at a inside thereof, and being connected to the first incinerator by an exhaust pipe at an upper end thereof; an air-circulating/dust-collecting chamber connected to the second burning chamber by a connection pipe and having an air inflow entrance formed at an upper end thereof, through which outside air is flowed in, and a perforated panel installed at an inside upper end thereof and formed with a plurality of inflow holes; and a circulation pipe, one side thereof, being connected to a lower end of the air-circulating/dust-collecting chamber and, the other side thereof, being connected to a lower side of the first incinerator.

[12] The device may preferably further include a blower installed in the circulation pipe connecting the air-circulating/dust-collecting chamber and the first incinerator.

[13] In addition, the device may preferably further include a waste heat boiler installed on the connection pipe connecting the second burning chamber and the air- circulating/dust-collecting chamber.

Advantageous Effects

[14] The vortex circulation type incineration device according to the present invention is friendly to atmospheric environment as the air pollution substances contained in the exhaust gas can be almost removed by recirculating the exhaust gas generated in the first incinerator through the second burning chamber and the air- circulating/dust-collecting chamber; environmental pollution can be prevented by re- striding discharged incomplete combustion gas; a caloric volume is increased by collecting residual heat of the recirculated exhaust gas and thus quickly drying wastes and an oxygen enrichment ratio is increased by mixing the recirculated gas with high pure oxygen and applying the mixed gas to burning, whereby quick and complete combustion of the wastes by burning at high temperature is accomplished and great economic benefit can be realized through maximizing of an efficiency of energy transformation due to increased temperature; furthermore, because the recirculated exhaust gas is applied to the burning, an operating cost can be reduced as an amount of chemicals which are used for removing the toxic gases can be reduced, and a cost for installation is inexpensive as the device according to the present invention is constructed with a relatively simple structure. Brief Description of the Drawings

[15] The above and other objects, features and advantages of the present invention will become apparent from the following description of preferred embodiments given in conjunction with the accompanying drawings, in which:

[16] Fig. 1 is a structural view illustrating an embodiment of a vortex circulation type incineration device according to the present invention.

[17] Fig. 2 is a perspective view illustrating a cone type perforated plate which is a main part of the vortex circulation type incineration device according to the present invention.

[18] Fig. 3 is a perspective view illustrating a perforated panel which is a main part of the vortex circulation type incineration device according to the present invention.

[19] Fig. 4 is a structural view illustrating a further embodiment of the vortex circulation type incineration device according to the present invention.

[20] [Detailed Description of Main Elements]

[21] 10: first incinerator

[22] 11 : waste drop opening

[23] 12: ash disposal part

[24] 13: heating burner

[25] 20: second burning chamber

[26] 21 : cone type perforated plate

[27] 21a: vent hole

[28] 22: igniting burner

[29] 30: air-circulating/dust-collecting chamber

[30] 31: air inflow entrance

[31] 32: perforated panel

[32] 32a: inflow hole [33] 40: blower

[34] 50: waste heat boiler

[35] Pl: exhaust pipe

[36] P2: connection pipe

[37] P3: circulation pipe

Best Mode for Carrying Out the Invention

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

[39] Fig. 1 is a structural view illustrating an embodiment of a vortex circulation type incineration device according to the present invention, Figs. 2 and 3 are perspective views illustrating a cone type perforated plate and a perforated panel respectively, which are main parts of the vortex circulation type incineration device according to the present invention.

[40] As shown, the vortex circulation type incineration device according to the present invention includes a first incinerator 10 having a waste drop opening 11 formed at an upper end thereof, an ash disposal part 12 formed at a bottom end thereof, and a heating burner 13 provided at a lower side thereof, a second burning chamber 20 having a cone type perforated plate 21 installed therein and formed with a plurality of vent holes 21a and at least one igniting burner 22 provided at a inside thereof, and being connected to the first incinerator 10 by an exhaust pipe Pl at an upper end thereof, an air-circulating/dust-collecting chamber 30 connected to the second burning chamber 20 by a connection pipe P2 and having an air inflow entrance 31 formed at an upper end thereof, through which outside air is flowed in, and a perforated panel 32 installed at an inside upper end thereof and formed with a plurality of inflow holes 32a, and a circulation pipe P3, one side thereof, being connected to a lower end of the air- circulating/dust-collecting chamber 30 and, the other side thereof, being connected to a lower side of the first incinerator 10.

[41] A blower 40 may be installed in the circulation pipe P3 connecting the air- circulating/dust-collecting chamber 30 and the first incinerator 10.

[42] Furthermore, the cone type perforated plate 21 which is installed within the second burning chamber 20 has, as shown in Fig. 2, the plurality of the vent holes 21a and thus exhaust gas which flows into the second burning chamber 20 is circulated through the vent holes 21a of the cone type perforated plate 21. At this time, the exhaust gas is rapidly circulated through the vent holes 21a due to generation of a vortex.

[43] The vortex circulation type incineration device according to the present invention constructed as described above is able to reduce generation of air pollution and thus is environment friendly because the exhaust gas generated during incineration of wastes in the first incinerator is recirculated so that air polluting substances contained in the exhaust gas is removed by almost more than 90 to 95%.

[44] A circulation process of the exhaust gas generated during the incineration of wastes by the vortex circulation type incineration device according to the present invention will be described with reference to Fig. 1.

[45] At first, wastes dropped into the first incinerator 10 through the waste drop opening

11 which is formed at an upper end of the first incinerator 10 are burned by the heating burner 13 provided at a lower side of the first incinerator 10.

[46] Exhaust gas, generated as the wastes are burned, contains a variety of air pollution substances and the exhaust gas is flowed through the exhaust pipe Pl into the second burning chamber 20 connected to the first incinerator 10 by the exhaust pipe Pl at an upper end of the first incinerator 10.

[47] The exhaust gas flowed into the second burning chamber 20 through the exhaust pipe Pl is instantly compressed and exploded at the same time by a plurality of the igniting burner 22 provided at a inside of the second burning chamber 20, which results in generation of vortex, and then flows out through the vent holes 21a of the cone type perforated plate 21 installed within the second burning chamber 20.

[48] At this time, more than approximately 90 to 95% of the air pollution substances contained in the exhaust gas are removed with generation of approximately 1400 to 1600⁰C of heat.

[49] The exhaust gas flowing out through the vent holes 21a of the cone type perforated plate 21 as described above is flowed into the inside of the air- circulating/dust-collecting chamber 30 through the connection pipe P2, and the exhaust gas flowed in is mixed with outside clean air which is flowed in through the air inflow entrance 31 provided at the upper portion of the air-circulating/dust-collecting chamber 30.

[50] In other words, the air flowed in through the air inflow entrance 31 is, as shown in

Fig. 3, flowed in through a plurality of inflow holes 32a formed on the perforated panel 32 installed at an inside upper portion of the air-circulating/dust-collecting chamber 30 and then mixed with the exhaust gas flowed in from the second burning chamber 20 at an inside lower portion of the air-circulating/dust-collecting chamber 30.

[51] The exhaust gas flowed into the inside of the air-circulating/dust-collecting chamber 30 is mixed with the outside air, and then undergo a recirculation process in which it flowed into the first incinerator 10 again through the circulation pipe P3, one side thereof, being connected to a lower end of the air-circulating/dust-collecting chamber 30 and, the other side thereof, being connected to a lower side of the first incinerator 10.

[52] At this time, by the blowers 40 installed in the circulation pipe P3, the exhaust gas mixed with the outside air in the air-circulating/dust-collecting chamber 30 can be more easily flowed into the first incinerator 10 again. Mode for the Invention

[53] Fig. 4 is a structural view illustrating a further embodiment of the vortex circulation type incineration device according to the present invention and the device is, as shown, further provided with a waste heat boiler 50 installed on the connection pipe P2 connecting the second burning chamber 20 and the air-circulating/dust-collecting chamber 30.

[54] According to this, because approximately 1400 to 1600⁰C of heat generated in the second burning chamber 20 is able to be used as heat source for the waste heat boiler 50 installed separately on the connection pipe P2, quick and complete combustion of the wastes by burning at high temperature is accomplished and great economic benefit can be realized through maximizing of an efficiency of energy transformation due to increased temperature.

[55] These and another features and advantages of the invention will no doubt become apparent to those skilled in the art having read the following detailed description, which makes reference to the several figures of the drawings.

[56]

Industrial Applicability

[57] As described above, following effects are expected by providing the vortex circulation type incineration device according to the present invention

[58] First, it is friendly to atmospheric environment as the air polluting substances contained in the exhaust gas can be almost removed by recirculating the exhaust gas generated in the first incinerator through the second burning chamber and the air- circulating/dust-collecting chamber.

[59] Second, environmental pollution can be prevented by restricting discharged incomplete combustion gas.

[60] Third, a caloric volume is increased by collecting residual heat of the recirculated exhaust gas and thus quickly drying wastes, and an oxygen enrichment ratio is increased by mixing the recirculated gas with high pure oxygen and applying the mixed gas to burning, whereby quick and complete combustion of the wastes by burning at high temperature is accomplished and great economic benefit can be realized through maximizing of an efficiency of energy transformation due to increased temperature.

[61] Forth, because the recirculated exhaust gas is applied to the burning, an operating cost can be reduced as an amount of chemicals which are used for removing the toxic gases can be reduced, and a cost for installation is inexpensive as the device according to the present invention is constructed with a relatively simple structure.

Claims

[1] A vortex circulation type incineration device comprising: a first incinerator having a waste drop opening formed at an upper end thereof, an ash disposal part formed at a bottom end thereof and a heating burner provided at a lower side thereof; a second burning chamber having a cone type perforated plate installed therein and formed with a plurality of vent holes and at least one igniting burner provided at a inside thereof, and being connected to the first incinerator by an exhaust pipe at an upper end thereof; an air-circulating/dust-collecting chamber connected to the second burning chamber by a connection pipe and having an air inflow entrance formed at an upper end thereof, through which outside air is flowed in, and a perforated panel installed at an inside upper end thereof and formed with a plurality of inflow holes; and a circulation pipe, one side thereof, being connected to a lower end of the air- circulating/dust-collecting chamber and, the other side thereof, being connected to a lower side of the first incinerator.

[2] The vortex circulation type incineration device according to claim 1, further comprising a blower installed in the circulation pipe connecting the air- circulating/dust-collecting chamber and the first incinerator.

[3] The vortex circulation type incineration device according to claim 1, further comprising a waste heat boiler installed on the connection pipe connecting the second burning chamber and the air-circulating/dust-collecting chamber.