US20210325036A1

US20210325036A1 - Pyrolytic incinerator

Info

Publication number: US20210325036A1
Application number: US17/275,540
Authority: US
Inventors: Sang Won TAN; Byung Chul AN
Original assignee: Individual
Current assignee: Idt Korea Co Ltd
Priority date: 2018-09-12
Filing date: 2018-09-12
Publication date: 2021-10-21
Also published as: CA3116304A1; WO2020054886A1

Abstract

The present disclosure provides a pyrolysis incineration system that more effectively performs pyrolysis by increasing a combustion rate. The pyrolysis incineration system includes an incineration unit that includes a furnace having a combustion space, a rod-shaped air suction pipe installed in the combustion space, a first layer separation nozzle unit including a plurality of first concentration nozzles circumferentially disposed at the upper end of the air suction pipe, a curtain nozzle unit including a plurality of first diffusion nozzles circumferentially disposed under the first layer separation nozzle unit, at least one second layer separation nozzle unit including a plurality of second concentration nozzles under the curtain nozzle unit, and at least one circulation nozzle unit including a plurality of third concentration nozzles circumferentially disposed under the second layer separation nozzle unit and a plurality of second diffusion nozzles disposed between the third concentration nozzles.

Description

TECHNICAL FIELD

The present disclosure relates to a pyrolysis incineration system that incinerates fuel such as waste and, more particularly, to a pyrolysis incineration system that can more effectively perform pyrolysis by increasing a combustion ratio.

BACKGROUND ART

Since various products are manufactured and used, various wastes are thrown away. Various types of wastes such as metal and food wastes in addition to plastic are thrown away. These wastes should be appropriately disposed of to be able to minimize environmental contamination, etc.
For example, metal wastes can be reused through melting them and food wastes can be biologically and chemically decomposed. However, there are many items that are difficult to dispose of in these ways. Most wastes that are difficult to reuse or decompose can be disposed of through incineration. Further, even a waste that can be disposed of in another way can be disposed of through incineration.
When a waste is incinerated, thermal energy can be obtained by using the waste as fuel, so the waste can be used. Further, other types of available energy sources can be obtained through processes such as gasification. However, there may be problems that excessive combustion gas is produced due to incomplete combustion of fuel (waste), noxious components are discharged with combustion gas, or excessive waste remnants that are not completely disposed of are produced due to incomplete combustion, so these problems should be solved.
Further, it may be required to immediately dispose of wastes at a place without a waste disposal facility, and when there is no disposal facility, there is also no purifier in many cases, so it is required to more effectively incinerate wastes. However, there is no appropriate solution for this problem.

CITATION LIST

Patent Literature

[Patent Literature 1]

Korean Patent Application Publication No. 10-2017-0024535, (Mar. 7, 2017)

SUMMARY OF INVENTION

Technical Problem

The present disclosure has been made in an effort to solve the problems, and an objective of the present disclosure is to provide a pyrolysis incineration system that can more effectively perform pyrolysis by increasing a combustion ratio.
The object of the present disclosure is not limited to those described above, and other objects may be made apparent to those skilled in the art from the following description.

Solution to Problem

A pyrolysis incineration system of the present disclosure includes an incineration unit that includes: a furnace having a combustion space therein; a rod-shaped air suction pipe vertically installed in the combustion space and providing air to be sprayed into the combustion space; a first layer separation nozzle unit including a plurality of first concentration nozzles, which is circumferentially disposed on the outer surface of the upper end of the air suction pipe, and spraying air supplied from the air suction pipe; a curtain nozzle unit including a plurality of first diffusion nozzles, which is circumferentially disposed around the outer surface of the air suction pipe under the first layer separation nozzle unit, and spraying air supplied from the air suction pipe; at least one second layer separation nozzle unit including a plurality of second concentration nozzles, which is circumferentially disposed on the outer surface of the air suction pipe under the curtain nozzle unit, and spraying air supplied from the air suction pipe; and at least one circulation nozzle unit including a plurality of third concentration nozzles, which is circumferentially disposed on the outer surface of the air suction pipe, and a plurality of second diffusion nozzles disposed between the third concentration nozzles, under the second layer separation nozzle unit, and spraying air supplied from the air suction pipe.
The first diffusion nozzles may spray air such that it at least partially overlaps air sprayed from adjacent first diffusion nozzles.
The first concentration nozzles may spray air such that it does not overlap air sprayed from adjacent first concentration nozzles.
The first concentration nozzles may horizontally spray air straight toward the inner surface of the furnace.
The second diffusion nozzles may horizontally spray air such that a spray area of the air expands at an acute angle in a direction perpendicular to a spray direction.
The incineration unit may further include a blocking nozzle unit that includes a plurality of fourth concentration nozzles circumferentially disposed on an outer surface of the air suction pipe between the first layer separation nozzle unit and the curtain nozzle unit and at the lower end of the air suction pipe with gaps therebetween that are larger than gaps between the first concentration nozzles.
The incineration unit may include a recirculation nozzle unit that includes a plurality of fifth concentration nozzles spaced downward apart from the circulation nozzle unit and circumferentially disposed on an outer surface of the air suction pipe and a plurality of third diffusion nozzles disposed between the fifth concentration nozzles, and sprays air supplied from the air suction pipe.
A cover positioned lower than the fuel inlet of the furnace and having a slope may be coupled to an end of the air suction pipe.
The curtain nozzle unit and the circulation nozzle unit may generate a pair of circulation current circulating in opposite directions in a space therebetween.
The incineration unit may further include a fluid sprayer spraying a combustible fluid toward fuel put in the combustion space, and an igniter including a heat source disposed in a spray direction of the combustible fluid in the combustion space.
The incineration unit may further include a temperature sensor measuring temperature of the combustion space, and a controller stopping the combustible fluid from being sprayed by controlling the fluid sprayer when a value measured by the temperature sensor exceeds a set temperature.
The incineration unit may further have a heat exchange channel disposed around the furnace for inward heat exchange with the furnace.
The incineration unit may further include a stirring module stirring deposits accumulated on the bottom of the furnace while moving on the bottom of the furnace, and a purge gas spray nozzle disposed on a side of the stirring module and spraying purge gas toward the deposits. The stirring module may include: a movable bar horizontally disposed and connected to a driving device; and a contact bar connected to an end of the movable bar and performing stirring. The purge gas spray module may be disposed on the outer side of the movable bar, and a channel connected to the purge gas spray nozzle to move purge gas may be formed in the movable bar.
The pyrolysis incineration system may further include a transport vehicle having a loading space, in which the incineration unit may be loaded and may burn an incineration material in the loading space.
The pyrolysis incineration system may further include a carriage connected to the transport vehicle and a movable fuel supplier including a pulverizing module loaded on the carriage.
The pyrolysis incineration system may further include a conveyer installed between the carriage and the transport vehicle and having both ends respectively extending under the pulverizing module and extending over the fuel inlet of the furnace.
The carriage may be connected to the transport vehicle through a towing device, and the conveyer may be loaded and transported in the loading space.
The incineration unit may have a plurality of wheel at the lower portion and may be moved and operated outside the loading space.

Advantageous Effects of Invention

According to the present disclosure, it is possible to remove a local temperature difference, etc. and keep a disposal temperature uniform by forming one or more circulation spaces or circulation layers in which fluid circulates in a furnace. Further, it is possible to very efficiently supply air for combustion while circulating in the circulation spaces. Further, it is possible to very effectively form the fluid circulation spaces or circulation layers using air circulation structures minutely structuralized and organically disposed. In addition, it is possible to more effective recover thermal energy produced in the process of combustion, it is possible to efficiently perform a combustion process, and it is possible to continuously perform disposal by minimizing deposits in combustion. Further, it is possible to easily perform pyrolysis disposal at a place requiring disposal of wastes, etc. by moving the furnace to the place and it is possible to immediately pulverize supply wastes, etc. at a disposal place. Accordingly, pyrolysis disposal can be very conveniently and efficiently performed.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a pyrolysis incineration system according to an embodiment of the present disclosure.

FIG. 2 is a vertical cross-sectional view showing the internal structure of an incineration unit of the pyrolysis incineration system shown in FIG. 1.

FIG. 3 is an enlarged view showing an air suction pipe and nozzle units of the incineration unit shown in FIG. 2.

FIG. 4 is a horizontal cross-sectional view showing a first layer separation unit, a curtain nozzle unit, and a blocking nozzle unit between the first layer separation unit and the curtain nozzle unit taken at corresponding positions on the air suction pipe.

FIG. 5 is a horizontal cross-sectional view showing a second layer separation nozzle unit and a circulation nozzle unit taken at corresponding positions on the air suction pipe.

FIG. 6 is a horizontal cross-sectional view showing a recirculation nozzle unit taken at a corresponding position on the air suction pipe.

FIG. 7 is a horizontal cross-sectional view showing the blocking nozzle unit taken at a corresponding position on the air suction pipe.

FIGS. 8 and 9 are views showing the operation of the incineration unit shown in FIG. 2.

FIG. 10 is a view showing a first modified example of the incineration unit shown in FIG. 2.

FIG. 11 is a view showing a second modified example of the incineration unit shown in FIG. 2.

FIG. 12 is a view showing the configuration of a pyrolysis incineration system according to another embodiment of the present disclosure.

FIG. 13 is a perspective view partially showing an incineration unit and a movable fuel supplier of the pyrolysis incineration system shown in FIG. 12

FIG. 14 is a view showing the operation of the entire pyrolysis incineration system shown in FIG. 12.

FIG. 15 is a view showing the configuration of a pyrolysis incineration system according to another embodiment of the present disclosure.

DESCRIPTION OF EMBODIMENTS

The advantages and features of the present disclosure, and methods of achieving them will be clear by referring to the exemplary embodiments that will be described hereafter in detail with reference to the accompanying drawings. However, the present disclosure is not limited to the exemplary embodiments described hereafter and may be implemented in various ways, and the exemplary embodiments are provided to complete the description of the present disclosure and let those skilled in the art completely know the scope of the present disclosure. The present disclosure is defined by claims. Like reference numerals indicate the same components throughout the specification.
In the specification, the ‘incineration material’ is the same meaning as ‘fuel’ and may be a waste, etc. Fuel, an incineration material, and a waste are all the same in terms that they are put and incinerated in a furnace of an incineration unit. Accordingly, even though the terms ‘fuel’, ‘incineration material’, and ‘waste’ are used in the specification, they all can be understood as the same objects that are put and incinerated in a furnace.
Hereafter, a pyrolysis incineration system according to an embodiment of the present disclosure will be described in detail with reference to FIGS. 1 to 11.
FIG. 1 is a perspective view of a pyrolysis incineration system according to an embodiment of the present disclosure, FIG. 2 is a vertical cross-sectional view showing the internal structure of an incineration unit of the pyrolysis incineration system shown in FIG. 1, and FIG. 3 is an enlarged view showing an air suction pipe and nozzles of the incineration unit shown in FIG. 2 (In FIG. 2, the conveyer shown in FIG. 1 is not shown and an air supply structure is added).
A pyrolysis incineration system 1 according to an embodiment of the present disclosure has a plurality of fluid circulation spaces separated from each other in a furnace 10 of an incineration unit 1 b, so pyrolysis can be more effectively performed. That is, the incineration unit 1 b includes a furnace 10 having a combustion space (see 10 a in FIG. 2), a rod-shaped air suction pipe 100 vertically disposed in the combustion space and providing air to be sprayed into the combustion space, and a plurality of nozzle structures circumferentially disposed on the outer surface of the air suction pipe 100, and includes the first layer separation nozzle unit 110, the second layer separation nozzle unit 130, the curtain nozzle unit 120, and the circulation nozzle unit 140 that are disposed at different positions in the vertical direction (or longitudinal direction) of the air suction pipe 100.
In particular, the nozzle units each include a plurality of nozzles (a concentration nozzle and a diffusion nozzle) in a single form or in a different forms organically disposed, and this structure is variously applied in various types, depending on the positions. It is possible to very effectively form a plurality of circulation spaces (or circulation layers) composed of different layers in the combustion space of the furnace 10 using this nozzle structure or the arrangement structure of the nozzles. The present disclosure further includes a blocking nozzle unit 160 and a recirculation nozzle unit 150, whereby it is possible to reinforce or adjust the fluid circulation structure in the combustion space and to prevent remnants or deposits left after combustion from unnecessarily flying in the combustion space.
That is, according to the present disclosure, it is possible to achieve very various useful effects such as forming air circulation layers (or circulation spaces) definitely separated from each other in the combustion space of the furnace 10, keeping the layers, reinforcing or adjusting a fluid circulation structure, and reducing flying of remnants or deposits in the combustion space by using the first layer separation nozzle unit (see 110 in FIG. 2, the second layer separation nozzle unit (see 130 in FIG. 2), the curtain nozzle unit (see 120 in FIG. 2), the circulation nozzle unit (see 140 in FIG. 2), the blocking nozzle unit (see 160 in FIG. 2), and the recirculation nozzle unit (see 150 in FIG. 2). Accordingly, very effective pyrolysis disposal is possible.
Hereafter, a pyrolysis incineration system according to an embodiment of the present disclosure having these characteristics is described in more detail with reference to the drawings. First, the internal structures of the incineration unit and the furnace, etc. are described in more detail and the operation process of the system including them is described in detail.
The incineration unit 1 b includes a furnace 10 having a combustion space therein, an air suction pipe 100 disposed in the furnace 10, and an air circulation structure minutely structuralized and organically disposed in the air suction pipe 100. Hereafter, the components are described in detail.
The furnace 10, as shown in FIG. 2, is a container having the combustion space 10 a therein. The furnace 10 may be formed in a cylindrical shape, but if necessary, may be formed in other shapes. The furnace 10 may be formed in various shapes as long as it has a combustion space therein. The furnace 10 may be made of metal or may contain metal or other substances such as a heat accumulation material. A vent 12 for discharging combustion gas may be formed on the top of the furnace 10 and may be connected to an external exhaust pipe and used. A fuel inlet 11 is formed on a side of the furnace 10, so fuel such as waste can be supplied through the fuel inlet 11. A conveyer (see 20 in FIG. 1) is disposed over the fuel inlet 11 of the furnace 10, so fuel (which may be crushed incineration material composed of waste, etc.) can be continuously supplied.
A heat exchange channel 13 is installed around the furnace 10, as shown in FIG. 2. That is, the heat exchange channel 13 may be disposed around the furnace to pass a heat exchange fluid inside. The heat exchange channel 13 enables a heat exchange fluid flowing therethrough to exchange heat with the furnace, whereby the temperature of the heat exchange fluid can be increased. For example, fluid such as water can be used as the heat exchange fluid, and it can be discharged after the temperature thereof is increased in the heat exchange channel 13. The furnace 10 has an injection pipe 13 a and a discharge pipe 13 b that are connected to the heat exchange channel 13, so a heat exchange fluid can be injected into the injection pipe 13 a and then discharged to the discharge pipe 13 b after passing through the heat exchange channel 13.
That is, combustion heat generated by operation of the furnace 10 is transferred to the heat exchange fluid passing through the heat exchange channel 13 to be easily used. The heat exchange fluid can be very easily used, for example, by being supplied to a hot water consumer after being discharged. Only one furnace 10 may be used, but a plurality of furnaces may be connected to be used as a module when a plurality of incineration units 1 b is provided. As described above, the air suction pipe 100 is disposed in the combustion space of the furnace 10. The air suction pipe 100, as shown in FIGS. 1 and 2, can be supplied with air from an air supply pipe 170 connected to a portion (which may be the bottom) of the furnace 10. The air supply pipe 170 is connected to an air supply structure (for example, which may include an air blower, a pump, and a storage tank, if necessary, etc.), whereby it can be supplied with air and can provide the air to the air suction pipe 100.
The air suction pipe 100, as shown in the figures, is vertically installed in the combustion space. The air suction pipe 100 is formed in a rod shape with the end closed, as shown in the figures. The end of the air suction pipe 100 is positioned lower than the fuel inlet 11 of the furnace 10 and a cover 101 having a slope 101 a may be coupled to the end. That is, fuel such as waste can be put inside through the fuel inlet 11 positioned higher than the air suction pipe 100 and the end (particularly, the upper end) of the air suction pipe 100 may be formed in a closed structure having the slope 101 a to not interfere with the fuel from dropping. The cover 101 can be separated from the air suction pipe 100, but, if necessary, it may be integrated to the air suction pipe 100 by welding, etc. The slope 101 a may be modified in various forms having an incline that is a flat surface or a curved surface.
The first layer separation nozzle unit 110, the second layer separation nozzle unit 130, the curtain nozzle unit 120, the circulation nozzle unit 140, the blocking nozzle unit 160, and the recirculation nozzle unit 150 described above are disposed at different positions on the air suction pipe 100. The nozzle units are positioned at different heights in the vertical direction of the air suction pipe 100, and each have a plurality of nozzles circumferentially disposed on the outer surface of the air suction pipe 100. In particular, the nozzle units are each formed by organically combining one or more different types of nozzles to more effectively perform a function of forming and maintaining separate air circulation spaces (or circulation layers) [first layer separation nozzle nit and second layer separation nozzle unit], more effectively inducing air circulation in the circulation spaces or circulation layers, amplifying a combustion effect, and preventing leakage of heat [curtain nozzle unit, circulation nozzle unit, and recirculation nozzle unit], and preventing combustion remnants, etc. from flying and reducing leakage of heat in cooperation with the layer separation nozzle units [blocking nozzle unit].
In particular, the nozzle units may be arranged in the order shown in FIG. 2 in accordance with an embodiment of the present disclosure. That is, the first layer separation nozzle unit 110, the blocking nozzle unit 160, and the curtain nozzle unit 120 may be disposed in a set at the upper end of the air suction pipe 100, the second layer separation nozzle unit 130 and the circulation nozzle unit 140 may be disposed at least in a pair under the curtain nozzle unit 120, the recirculation nozzle unit 150 may be spaced downward apart from the circulation nozzle unit 140, and the blocking nozzle unit 160 may be disposed at the lower end of the air suction pipe 100. Accordingly, a plurality of fluid circulation spaces (or circulation layers) separated from each other is effectively formed between the curtain nozzle unit 120 and the circulation nozzle unit 140, between different circulation nozzle units 140, between the circulation nozzle unit 140 and the recirculation nozzle unit 150, and between the recirculation nozzle unit 150 and the blocking nozzle unit 160 at the lower end of the air suction pipe 100. On the basis of this arrangement order, the detailed positions, nozzle structures, arrangements, and operation effects of the nozzle units are described in more detail with reference to FIGS. 3 to 7.
FIG. 3 is an enlarged view showing the air suction pipe and the nozzle units of the incineration unit shown in FIG. 2, FIG. 4 is a horizontal cross-sectional view showing the first layer separation unit, the curtain nozzle unit, and the blocking nozzle unit between the first layer separation unit and the curtain nozzle unit taken at corresponding positions on the air suction pipe, FIG. 5 is a horizontal cross-sectional view showing the second layer separation nozzle unit and the circulation nozzle unit taken at corresponding positions on the air suction pipe, FIG. 6 is a horizontal cross-sectional view showing the recirculation nozzle unit taken at a corresponding position on the air suction pipe, and FIG. 7 is a horizontal cross-sectional view showing the cutting nozzle unit taken at a corresponding position on the air suction pipe.
Referring to FIGS. 3 and 4, the first layer separation nozzle unit 110 includes a plurality of first concentration nozzles 111 circumferentially disposed on the outer surface of upper end of the air suction pipe 100, thereby spraying air supplied from the air suction pipe 100. The first concentration nozzles 111, as shown in FIG. 3, have a spray hole with a constant diameter, so they straightly spray air A as shown in (a) of FIG. 4. That is, the first concentration nozzles 111 horizontally spray air straight to the inner surface of the furnace (see 10 in FIG. 3) such that it does not overlap the air A sprayed from adjacent first concentration nozzles 111. Accordingly, as shown in (a) of FIG. 4, flow of air A sprayed straightly from different first concentration nozzles 111 without overlapping each other are circumferentially formed. The gaps between the first concentration nozzles 111 may be appropriately adjusted, if necessary.
The first layer separation nozzle unit 110 can form a layer of air circumferentially diffused without overlapping each other at the upper end of the air suction pipe 100 using the first concentration nozzles 111. Using this, the first layer separation nozzle unit 110 can prevent leakage of heat by blocking flow of fluid going upward in cooperation with the blocking nozzle unit 160 to be described below. Since there are predetermined gaps between the sprayed air A, as described above, fuel such as waste can be easily dropped in the direction of gravity. The second layer separation nozzle unit 130 is also formed in the same way as the first layer separation nozzle unit 110, so it can achieve the same effect.
The curtain nozzle unit 120, as shown in FIG. 3, includes a plurality of first diffusion nozzles 121 circumferentially disposed under the first layer separation nozzle unit 110 on the outer surface of the air suction pipe 100, thereby spraying air supplied from the air suction pipe 100. The first diffusion nozzles 121 have a spray holes of which the diameter increases toward the end, unlike the first concentration nozzles 111. Accordingly, as shown in (c) of FIG. 4, the spray area of the air A expands in the direction perpendicular to the spray direction. Accordingly, at least some of the air A sprayed from the first diffusion nozzles 121 can overlap the air A sprayed from adjacent first diffusion nozzles 121. That is, unlike the first concentration nozzles 111, the first diffusion nozzles 121 spray air such that it at least partially overlaps the air A sprayed from adjacent first diffusion nozzles 121. Accordingly, as shown in (c) of FIG. 4, flow of air A is formed in a radially widely sprayed curtain shape such that at least some of the air from different first diffusion nozzles 121 overlap each other. Further, flow of air A can be induced in the up-down direction of FIG. 3 which is perpendicular to the spray direction. The gaps between the first diffusion nozzles 121 may also be appropriately adjusted, if necessary.
The curtain nozzle unit 120 can form a very wide air spray area at the upper end of the air suction pipe 100 using the arrangement of the first diffusion nozzles 121. Accordingly, it is possible to very effectively block the flow of fluid passing through the curtain nozzle unit 120, and accordingly, gas, etc. that have not be burned can be maintained under the curtain nozzle unit 120 and more completely burned. Accordingly, it is possible to effectively prevent incompletely combusted gas, etc. from being discharged upward from the furnace (see 10 FIG. 2). Further, since a relatively large amount of air A is sprayed and supplied, a circulation current can be more easily formed, and a thermal reaction can be promoted by increasing the supply amount of air A.
The blocking nozzle unit 160 is disposed between the first layer separation nozzle unit 110 and the curtain nozzle unit 120, and at the lower end of the air suction pipe 100, as shown in FIG. 3. The blocking nozzle unit 160 is circumferentially disposed on the outer surface of the air suction pipe 100 and includes a plurality of fourth concentration nozzles 161 arranged with gaps therebetween which is larger than the gaps between the first concentration nozzles 111. The fourth concentration nozzles 161 are formed in the substantially same form as the first concentration nozzles 111 described above. Accordingly, they can straightly spray air A. That is, the blocking nozzle 160, as shown in FIG. 4B, can form circumferential flow of relatively sparse air A that are straightly sprayed. The blocking nozzle unit 160 is formed at the lower end of the air suction pipe 100 in the same way, so it can form the same flow of air A, as shown in FIG. 7.
The blocking nozzle units 160 are disposed at the upper end and the lower end of the air suction pipe 100, thereby being able to effectively prevent impurities, etc. produced in combustion from flying. In particular, the blocking nozzle unit 160 at the lower end of the air suction pipe 100 is positioned right over the bottom of the furnace (see FIG. 1) (or the combustion space in the furnace), whereby it can prevent combustion deposits, etc. accumulated on the bottom of the furnace from moving upward. Further, the blocking nozzle unit 160 has concentration nozzles (fourth concentration nozzles) that are not expanded and the gaps between the nozzles are large, so the blocking nozzle unit 160 can minimize the interaction with the combustion deposits accumulated on the bottom of the furnace 10. That is, the blocking nozzle unit 160 is formed to be able to minimize movement of unnecessary deposits, remnants, etc. The blocking nozzle unit 160 at the upper end of the air suction pipe 100 has nozzles arranged with gaps larger than the gaps of the first layer separation nozzle unit 110 described above, so fuel such as waste can easily drop in the direction of gravity through the gaps.
Referring to FIGS. 3 and 5, the second layer separation nozzle unit 130 includes a plurality of second concentration nozzles 131 circumferentially disposed on the outer surface of the air suction pipe 100 under the curtain nozzle unit 120, thereby spraying air supplied from the air suction pipe 100. The second concentration nozzles 131 are substantially the same as the first concentration nozzles 111 described above, so the structure or nozzle arrangement of the second layer separation nozzle unit 130 are also substantially the same as the structure of the first layer separation nozzle unit 110 described above. The flow of air generated by the second layer separation nozzle unit 130 is substantially the same as the flow of air generated by the first layer separation nozzle unit 110 (see (a) of FIG. 5). However, the first layer separation nozzle unit 110 is positioned at the upper end of the air suction pipe 100 and at least one second layer separation nozzle unit 130 is positioned under the curtain nozzle unit 120 described above, so there is a difference in position or number. That is, the second layer separation nozzle unit 130 can achieve the same effect as the first layer separation nozzle unit 110 at a different position from the first layer separation nozzle unit 110.
A plurality of second layer separation nozzle units 130 may be disposed at different heights, as shown in the figures. When the number of second layer separation nozzle units 130 is increased, the number of the separate fluid circulation spaces formed in the combustion space is also increased. The second layer separation nozzle unit 130 is provided in a pair with the circulation nozzle unit 140 disposed thereunder, so at least one circulation nozzle unit 140 may be provided similar to the second layer separation nozzle unit 130. It is possible to form one or more separate fluid circulation spaces using the second layer separation nozzle units 130 and it is also possible to very effectively generate fluid circulation flow in the separate circulation spaces using the circulation nozzle units 140 disposed under the second layer separation nozzle units 130.
The circulation nozzle unit 140 includes a plurality of third concentration nozzles 141 circumferentially disposed on the outer surface of the air suction pipe 100 under the second layer separation nozzle unit 130 and a plurality of second diffusion nozzles 142 disposed between the third concentration nozzles 141, thereby spraying the air supplied from the air suction pipe 100. The third concentration nozzles 141 are substantially the same as the first concentration nozzles and the second concentration nozzles described above, and the second diffusion nozzles 142 are substantially the same as the first diffusion nozzles described above. Accordingly, it is possible to straightly spray air with the third concentration nozzles 141 and expand the spray area in the direction perpendicular to the spray direction with the second diffusion nozzles 142. The second diffusion nozzles 142 horizontally spray air, but the spray area of the air can be expanded at an acute angle in the direction perpendicular to the spray direction. In particular, as shown in (b) of FIG. 5, it is possible to organically generate flow of air A having an expanding spray area between the flow of air A that are straightly sprayed by alternately disposing the third concentration nozzles 141 and the second diffusion nozzles 142.
The circulation nozzle unit 140 can very easily generate flow of circulation fluid using both of the third concentration nozzles 141 and the second diffusion nozzles 142. In particular, it is possible to induce the same effect as the diffusion nozzles described above using the second diffusion nozzles 142 that are substantially the same as the first diffusion nozzles described above. That is, since a relatively large amount of air A is sprayed and supplied, a circulation current can be more easily formed, and a thermal reaction can be promoted by increasing the supply amount of air A. Further, since the spray area expands, flow of air A can be induced in the up-down direction of FIG. 3 which is perpendicular to the spray direction.
Meanwhile, the recirculation nozzle unit 150 is spaced downward apart from the circulation nozzle unit 140. The recirculation nozzle unit 150 is independently disposed, particularly, at a position where the temperature of the inside of the combustion space is the highest. That is, unlike the pair of the first layer separation nozzle unit, the curtain nozzle unit, and the blocking nozzles therebetween, and the pair of the second layer separation nozzle unit and the circulation nozzle, the recirculation nozzle unit 150 is independently disposed without making a pair with another nozzle unit at the position where the temperature of the inside of the combustion space is the highest. The recirculation nozzle unit 150 includes a plurality of fifth concentration nozzles 151 spaced downward apart from the circulation nozzle unit 140 and circumferentially disposed on the outer surface of the air suction pipe 100 and a plurality of third diffusion nozzles 152 disposed between the fifth concentration nozzles 151, thereby spraying the air supplied from the air suction pipe 100.
The recirculation nozzle unit 150 is independently disposed and can improve the fluid circulation effect at the position. That is, the recirculation nozzle unit 150 can generate flow of fluid using a combination of the fifth concentration nozzles 151, which are substantially the same as the first concentration nozzles, second concentration nozzles, third concentration nozzles, and fourth concentration nozzles, and the third diffusion nozzles 152, which are substantially the same as the first diffusion nozzles and the second diffusion nozzles. In particular, flow of air is induced not only horizontally, but also vertically (that is, including the up-down direction) due to the spray area expansion effect by the third diffusion nozzles 152, whereby circulation flow can be formed. Further, the recirculation nozzle unit 150 can perform this function as the position where the temperature of the inside of the combustion space is the highest. The point where the recirculation nozzle unit 150 is disposed, for example, may be a point between the blocking nozzle unit 160 at the lower end of the air supply pipe 100 and the circulation nozzle unit 140 over the blocking nozzle unit 160.
It is possible to appropriately divide the combustion space, generate effective fluid flow in the separate spaces, and perform combustion in this state, using the first layer separation nozzle unit 110, the second layer separation nozzle unit 130, the curtain nozzle unit 120, the circulation nozzle unit 140, the blocking nozzle unit 160, and the recirculation nozzle unit 150 that are combined in different forms and organically disposed at different positions, as described above. Accordingly, the fluid heated in the combustion space during combustion can circulate in the spaces to prevent unnecessary concentration of heat and make the temperature of the entire furnace uniform. Further, since the fluid flow is generated by spraying air, combustion is promoted at the points where the air is sprayed, so the combustion efficiency can be remarkably increased. Hereinafter, the detailed operation process of the incineration unit is described in more detail with reference to FIGS. 8 and 9.
FIGS. 8 and 9 are views showing the operation of the incineration unit shown in FIG. 2. Referring to FIG. 8, a fluid circulation space may be formed in the furnace 10, as shown in the figure. For example, a plurality of fluid circulation spaces separated to be smaller than the entire combustion space 10 a is sequentially formed between the first layer separation nozzle unit 110 and the second layer separation nozzle unit 130, between different second layer separation nozzle units 130, between the blocking nozzle unit 160 at the lower end of the air suction pipe 100 and the second layer separation nozzle units 130, etc., whereby combustion efficiency can be increased. In particular, the curtain nozzle unit 120 under the first layer separation nozzle unit 110 and the circulation nozzle unit 140 under the second layer separation nozzle unit 130 can form a pair of circulation currents A1 and A2 in opposite directions in the space therebetween using a diffusion effect of the diffusion nozzles described above (first diffusion nozzles and second diffusion nozzles).
That is, air A is horizontally sprayed from the diffusion nozzles but a spray area is formed in the direction perpendicular to the spray direction, so the vertical velocity component is also included in addition to the horizontal velocity component. Accordingly, a fluid flow (circulation current) that more effectively circulates can be formed in the separate circulation spaces using the component of the air current vertically moving. In particular, the downward component of the air A sprayed from the curtain nozzle unit 120 and the upward component of the air A sprayed from the circulation nozzle unit 140 can generate a pair of circulation currents A1 and A2 that compensate for rotational force therebetween while rotating in opposite directions in mesh with each other like gears in the separate space therebetween.
The pair of circulation currents can be generated in substantially the same form, as shown in the figures, between different circulation nozzle units 140 and between the circulation nozzle unit 140 and the recirculation nozzle unit 150, and may be generated in a partially similar type between the recirculation nozzle unit 150 and the blocking nozzle unit 160 at the lower end of the air suction pipe 100. That is, due to the diffusion effect of air A by the nozzle unit including the diffusion nozzles (the first diffusion nozzles of the curtain nozzle unit, the second diffusion nozzles of the circulation nozzle unit, and the third diffusion nozzles of the recirculation nozzle unit), at least two circulation currents can easily circulate the fluid in the combustion space while rotating in a pair in opposite direction in mesh with each other in the separate circulation spaces.
Further, the layer separation nozzle units (the first layer separation nozzle unit and the second layer separation nozzle units) concentrate air without spreading the flow or air A using the concentration nozzles (the first concentration nozzles of the first layer separation nozzle unit and the second concentration nozzles of the second layer separation nozzle units). Accordingly, as shown in the figures, it is possible to divide the combustion space 10 a and very easily form fluid circulation space in which the circulation currents, etc. circulate therebetween. The blocking nozzle units 160, as described above, are disposed at the upper end and the lower end of the air suction pipe 100, thereby being able to effectively prevent impurities, etc. produced in combustion from flying. It is possible to very efficiently perform a pyrolysis process while forming such flow of air A in the combustion space 10 a.
The pyrolysis process is performed while fuel such as crushed incineration materials or wastes is continuously supplied through the fuel inlet 11. The internal temperature of the furnace 10 may be increased over 1,000° C. by combustion heat and high-temperature energy produced in this case can be accumulated in a heat accumulation material forming the outer wall of the furnace 10. Accordingly, heat energy can be very easily transferred to the heat exchange channel 13 formed around the furnace 10. The heat exchange fluid B is injected through the injection pipe 13 a, as described above, and can be used in various ways after being heated in the heat exchange channel 13 and then discharged from the discharge pipe 13 b.
While the pyrolysis process is performed, combustion gas C can be discharged to the vent 12 on the top of the furnace 10. In particular, as shown in FIG. 9, since the flow of the circulation currents described above is generated in each circulation spaces, the combustion gas C can be discharged upward through the air suction pipe 100 or an elevation space adjacent to the inner wall of the furnace 10 that are relatively less influenced by the circulation currents. That is, the combustion gas C is completely burned by repeatedly circulating with the flow of fluid circulating in the separate spaces and is then naturally discharged upward through the air suction pipe 100 or the elevation space adjacent to the inner wall of the furnace 10. As described above, it is possible to effectively solve the problems due to incomplete combustion by forming the separate fluid circulation spaces in the combustion space 10 a.
Hereafter, a modified example of the incineration unit is described with reference to FIGS. 10 and 11. FIG. 10 is a view showing a first modified example of the incineration unit shown in FIG. 2 and FIG. 11 is a view showing a second modified example of the incineration unit shown in FIG. 2.
Referring to FIG. 10, the incineration unit 10 b may include a fluid sprayer 210 spraying a combustible fluid toward the fuel put into the combustion space and an igniter 220 including a heat source 221 disposed toward the spray direction of the combustible fluid in the combustion space. To this end, even when the incineration unit 1 b is started, ignition and a pyrolysis process can be safely performed without a separate operator. The fluid sprayer 210, for example, may be a nozzle bending at a predetermined angle and a plurality of sprays may be arranged with regular intervals toward the center of the combustion space. The fluid sprayer 210, for example, can spray a combustible fluid such as oil. The igniter 220 may be formed such that heat source 221 that can adjust temperature (e.g., a heat generator including a heating wire or other heat accumulation substances) is positioned in the combustion space. After a predetermined amount of fuel is supplied in the furnace 10 and the heat source 221 generates heat, when the fluid sprayer 210 sprays a combustible fluid, ignition can be automatically generated in the combustion space.
In particular, this ignition process can be automatically performed by a temperature sensor 230 and a controller 240. That is, the incineration unit 1 b may include a temperature sensor 230 that measures the temperature of the combustion space and a controller 240 that stops a combustible fluid from being sprayed by controlling the fluid sprayer 210 when the value measured by the temperature sensor 230 exceeds a set temperature. Automatic ignition can be started in this way at the beginning of operation, and then, when fuel (objects to be incinerated such as wastes) is continuously supplied and combustion is performed, it may be unnecessary to spray a separate combustible fluid. Accordingly, when the temperature sensor 230 measures the internal temperature of the combustion space and the internal temperature exceeds a set temperature (e.g., which may be 200° C.), it is possible to control to stop the combustible fluid from being sprayed by controlling the fluid sprayer 210. It is possible to more conveniently perform the pyrolysis process through this control.
Meanwhile, referring to FIG. 11, the incineration unit 1 b may include a stirring module 300 that stirs deposits accumulated on the bottom of the furnace 10 while moving on the bottom of the furnace 10. It is possible to automatically mix deposits in the furnace without changing the combustion atmosphere in the furnace 10, using the stirring module 300. Accordingly, it is possible to keep performing the pyrolysis process while automatically stirring remnants of fuel that has not burned using the stirring module 300. The stirring module 300, for example, may include a movable bar 310 horizontally disposed, a contact bar 311 connected to the end of the movable bar 310, etc. It is possible to perform stirring while changing the position of the contact bar 311 by operating the movable bar 310. The movable bar 310 may be connected to a driving device 320, etc., and the driving device 320 may include an actuator, such as a motor, a chain, a belt, and a gear, and a power transmitter connected to the actuator.
The incineration unit 1 b may include a purge gas spray nozzle 312, which sprays purge gas (see the portion indicated by dotted lines outside 312) toward deposits, on a side of the stirring module 300. The purge gas spray nozzle 312, as shown in the figures, may be disposed on the outer side of the movable bar 310 and a channel connected to the purge gas spray nozzle 312 may be formed in the movable bar 310. The channel is connected to a purge gas pipe 330, so purge gas can flow inside. The purge gas may be high-pressure air, etc., and remaining deposits can be effectively stirred by spraying the purge gas.
The purge gas may also function as a refrigerant that cools the stirring module 300. That is, when the stirring module 300 is made of metal, etc., it may be overheated by the heat in the combustion space. Accordingly, it is possible to cool the stirring module 300 to a relatively low temperature using the purge gas that flows through the movable bar 310, etc. and is sprayed around the stirring module 300. Accordingly, it is possible to achieve double effects that the stirring module 300 more smoothly operates and deposits are more easily stirred. As such, it is also possible to very effectively perform pyrolysis process using the incineration unit 1 b having the stirring module 300.
Hereafter, a pyrolysis incineration system according to another embodiment of the present disclosure will be described in detail with reference to FIGS. 12 to 14. The difference from the previous embodiment will be mainly described, and the other configuration not specifically mentioned refers to the previous description for simple and clear description.
FIG. 12 is a view showing the configuration of a pyrolysis incineration system according to another embodiment of the present disclosure, FIG. 13 is a perspective view partially showing an incineration unit and a movable fuel supplier of the pyrolysis incineration system shown in FIG. 12, and FIG. 14 is a view showing the operation of the entire pyrolysis incineration system shown in FIG. 12.
Referring to FIGS. 12 to 14, a pyrolysis incineration system 1-1 according to another embodiment of the present disclosure includes a movable incineration unit 1 b. That is, the pyrolysis incineration system 1-1 according to another embodiment of the present disclosure includes a transport vehicle 1 a having a loading space and an incineration unit 1 b mounted in the loading space to incinerate incineration materials. The incineration materials are put and burned in the furnace 10 of the incineration unit 1 b, thereby being thermally decomposed. The pyrolysis incineration system 1-1 can be moved with the incineration unit 1 b loaded on the transport vehicle 1 a, and accordingly, it is possible to quickly move to a disposal place and perform pyrolysis disposal for burning incineration materials that are fuel. The pyrolysis incineration system 1-1 further includes a movable fuel supplier 1 c including a carriage 40 connected to the transport vehicle 1 a and a pulverizing module 50 loaded on the carriage 40, thereby being able to provide fuel (i.e., incineration materials such as wastes) in an easily disposable state. Further, pyrolysis incineration system 1-1 can conveniently supply the fuel using a conveyer 20 installed between the carriage 40 and the transport vehicle 1 a. The pyrolysis incineration system 1-1, as shown in FIGS. 12 and 13, in a broad meaning, may be composed of the transport vehicle 1 a, the incineration unit 1 b, and the movable fuel supplier 1 c. The incineration unit 1 b, as shown in the figures, can be loaded in the loading space of the transport vehicle 1 a and can be moved with the transport vehicle 1 a. Accordingly, it is possible to smoothly perform pyrolysis disposal using the incineration unit 1 b at various disposal places. The incineration unit 1 b may be configured such that the furnace 10, etc. are coupled to a base 30, and a control circuit, an air blower, and driving devices such as a motor can be integrally installed, other than the furnace 10, on the base 30. The incineration unit 1 b may be configured in an independent unit type, so it can be moved and operated outside the loading space of the transport vehicle 1 a. Though not shown, a plurality of wheels is disposed under the incineration unit 1 b, so the incineration unit 1 b can be freely moved and operated outside the loading space.
The movable fuel supplier 1 c is connected and moved with the transport vehicle 1 a with the incineration unit 1 b loaded thereon, as shown in the figures. The movable fuel supplier 1 c includes a carriage 40 connected to the transport vehicle 1 a and a pulverizing module 50 loaded on the carriage 40. The pulverizing module 50 may include pulverizing blades overlapping each other and rotating. When an incineration material is supplied between the pulverizing blades, the incineration material is pulverized and then discharged, so it can be very easily burned. Accordingly, it is possible to move the pulverizing module 50 loaded on the carriage 40 together with the incineration unit 1 b and then very easily pulverize and thermally decompose incineration materials with various sizes or various forms of non-standardized incineration materials produced at a desired disposal place.
As shown in the figures, the conveyer 20 having both ends respectively extending under the pulverizing module 50 and over the fuel inlet 11 of the furnace 10 may be installed between the carriage 40 and the transport vehicle 1 a. It is possible to immediately convey and supply pulverized objects to be incinerated (i.e., fuel) to the incineration unit 1 b using the conveyer 20. The conveyer 20 may be detachably installed, and accordingly, even though the position between the transport vehicle 1 a and the movable fuel supplier 1 c is changed, it is possible to easily deal with the situation. That is, the carriage 40 is connected to the transport vehicle 1 a through a towing device 41, etc., so the position relative to the transport vehicle 1 a can be changed, and in this case, the conveyer 20 can be separated and loaded and moved in the loading space of the transport vehicle 1 a.
The capacity of the transport vehicle 1 a can be appropriately adjusted in consideration of the size, the number, etc. of the incineration unit 1 b, and the size or number of the movable fuel supplier 1 c may also be appropriately adjusted to fit to the capacity of the incineration unit 1 b. If necessary, it is possible to load and move one or more incineration units 1 b in the loading space of the transport vehicle 1 a. In order to satisfy the pyrolysis capacity required at a disposal place, it is possible to appropriately adjust the size and the loading amount of the incineration unit 1 b, the capacity of the fuel supplier 1 c, etc. The incineration unit 1 b may be configured in an independent unit type, as described above, and one or more incineration units may be switched and loaded.
Referring to FIG. 14, it is possible to more effectively dispose of various incineration materials at a disposal place using the pyrolysis incineration system 1-1 including the incineration unit 1 b. As shown in FIG. 14, it is possible to pulverize incineration materials such as wastes (i.e., fuel) discharged at a disposal place by putting them into the pulverizing module 50 of the movable fuel supplier 1 c and it is possible to continuously supply the pulverized incineration materials to the incineration unit 1 b using the conveyer 20. In particular, since fluid flows organically separated and circulating are generated in the furnace 10 of the incineration unit 1 b by the structure described above, the combustion rate is considerably increased, so more effective pyrolysis is possible. Further, this pyrolysis process can be performed by quickly moving the incineration unit 1 b to a desired disposal place by moving the transport vehicle 1 a, so pyrolysis disposal can be very easily performed even if there is no appropriate disposal facility at the disposal place.
Hereafter, a pyrolysis incineration system according to another embodiment of the present disclosure is described in detail with reference to FIG. 15. The difference from the previous embodiment will be mainly described and the other configuration not specifically mentioned refers to the previous description for simple and clear description.
FIG. 15 is a view showing the configuration of a pyrolysis incineration system according to another embodiment of the present disclosure.
Referring to FIG. 15, a pyrolysis incineration system 1-2 according to another embodiment of the present disclosure includes access steps 31. The access steps 31 are, as shown in the figure, installed to enable approach to the loading space of the transport vehicle 1 a. The access steps 31 may include a part positioned in the loading space and a part positioned between the loading space and the ground (the ground on which the transport vehicle is parked), and the two parts can be hinged. Accordingly, as shown in (b) of FIG. 15, the access steps 31 may be foldable to enable approach to the incineration unit 1 b.
That is, as shown in (a) of FIG. 15, one or more incineration units 1 b may be loaded in the loading space and the access steps 31 may be installed therebetween so that an operator, etc. can easily approach the incineration units. In particular, it is possible to fold the access steps 31 in an easily movable state, as shown in (b) of FIG. 15, to move to a disposal place. Further, the access steps 31 can be unfolded at a disposal place, as shown in (a) of FIG. 15, whereby it is possible to perform disposal by operating the incineration unit 1 b, etc. in the state in which an operator, etc. can easily approach the incineration unit 1 b. Pyrolysis disposal can be very easily performed at a disposal place in this way.
Although exemplary embodiments of the present disclosure were described above with reference to the accompanying drawings, those skilled in the art would understand that the present disclosure may be implemented in various ways without changing the necessary features or the spirit of the prevent disclosure. Therefore, the embodiments described above are only examples and should not be construed as being limitative in all respects.

REFERENCE SIGNS LIST

- 1, 1-1, 1-2: pyrolysis incineration system
- 1 a: transport vehicle
- 1 b: incineration unit
- 1 c: movable fuel supplier
- 10: furnace
- 10 a: combustion space
- 11: fuel inlet
- 12: vent
- 13: heat exchange channel
- 13 a: injection pipe
- 13 b: discharge pipe
- 20: conveyer
- 30: base
- 31: access steps
- 40: carriage
- 41: towing device
- 50: pulverizing module
- 100: air suction pipe
- 101: cover
- 101 a: slope
- 110: first layer separation nozzle unit
- 111: first concentration nozzle
- 120: curtain nozzle unit
- 121: first diffusion nozzle
- 130: second layer separation nozzle unit
- 131: second concentration nozzle
- 140: circulation nozzle unit
- 141: third concentration nozzle
- 142: second diffusion nozzle
- 150: recirculation nozzle unit
- 151: fifth concentration nozzle
- 152: third diffusion nozzle
- 160: blocking nozzle unit
- 161: fourth concentration nozzle
- 170: air supply pipe
- 210: fluid sprayer
- 220: igniter
- 221: heat source
- 230: temperature sensor
- 240: controller
- 300: stirring module
- 310: movable bar
- 311: contact bar
- 312: purge gas spray nozzle
- 320: driving device
- 330: purge gas pipe
- A: air
- A1, A2: circulation current
- B: heat exchange fluid
- C: combustion gas

INDUSTRIAL APPLICABILITY

The present disclosure is very useful for disposing of wastes because it is possible to remove a local temperature difference, etc. and keep a disposal temperature uniform by forming one or more circulation spaces or circulation layers in which fluid circulates in a furnace, possible to circulate and very efficiently supply air for combustion while circulating the air in the circulation spaces, and possible to very effectively form the fluid circulation spaces or circulation layers using air circulation structures minutely structuralized and organically disposed. Further, the present disclosure can be used for waste disposal and relevant industries because it is possible to more effective recover thermal energy produced in the process of combustion, possible to continuously perform disposal by minimizing deposits in combustion, possible to easily perform pyrolysis disposal at a place requiring disposal of wastes, etc. by moving the furnace to the place, and possible to immediately pulverize supply wastes, etc. at a disposal place.

Claims

1. A pyrolysis incineration system comprising an incineration unit that includes:

a furnace having a combustion space therein;

a rod-shaped air suction pipe vertically installed in the combustion space and providing air to be sprayed into the combustion space;

a first layer separation nozzle unit including a plurality of first concentration nozzles, which is circumferentially disposed on the outer surface of the upper end of the air suction pipe, and spraying air supplied from the air suction pipe;

a curtain nozzle unit including a plurality of first diffusion nozzles, which is circumferentially disposed around the outer surface of the air suction pipe under the first layer separation nozzle unit, and spraying air supplied from the air suction pipe;

at least one second layer separation nozzle unit including a plurality of second concentration nozzles, which is circumferentially disposed on the outer surface of the air suction pipe under the curtain nozzle unit, and spraying air supplied from the air suction pipe; and

at least one circulation nozzle unit including a plurality of third concentration nozzles, which is circumferentially disposed on the outer surface of the air suction pipe and a plurality of second diffusion nozzles disposed between the third concentration nozzles, under the second layer separation nozzle unit, and spraying air supplied from the air suction pipe.

2. The pyrolysis incineration system of claim 1, wherein the first diffusion nozzles spray air such that it at least partially overlaps air sprayed from adjacent first diffusion nozzles.

3. The pyrolysis incineration system of claim 1, wherein the first concentration nozzles spray air such that it does not overlap air sprayed from adjacent first concentration nozzles.

4. The pyrolysis incineration system of claim 3, wherein the first concentration nozzles horizontally spray air straight toward the inner surface of the furnace.

5. The pyrolysis incineration system of claim 1, wherein the second diffusion nozzles horizontally spray air such that a spray area of the air expands at an acute angle in a direction perpendicular to a spray direction.

6. The pyrolysis incineration system of claim 1, wherein the incineration unit further includes a blocking nozzle unit that includes a plurality of fourth concentration nozzles circumferentially disposed on an outer surface of the air suction pipe between the first layer separation nozzle unit and the curtain nozzle unit and at the lower end of the air suction pipe with gaps therebetween that are larger than gaps between the first concentration nozzles.

7. The pyrolysis incineration system of claim 1, wherein the incineration unit further includes a recirculation nozzle unit that includes a plurality of fifth concentration nozzles spaced downward apart from the circulation nozzle unit and circumferentially disposed on an outer surface of the air suction pipe third diffusion nozzles and a plurality of third diffusion nozzles disposed between the fifth concentration nozzles, and sprays air supplied from the air suction pipe.

8. The pyrolysis incineration system of claim 1, wherein a cover positioned lower than the fuel inlet of the furnace and having a slope is coupled to an end of the air suction pipe.

9. The pyrolysis incineration system of claim 1, wherein the curtain nozzle unit and the circulation nozzle unit generate a pair of circulation current circulating in opposite directions in a space therebetween.

10. The pyrolysis incineration system of claim 1, wherein the incineration unit further includes a fluid sprayer spraying a combustible fluid toward fuel put in the combustion space, and an igniter including a heat source disposed in a spray direction of the combustible fluid in the combustion space.

11. The pyrolysis incineration system of claim 10, wherein the incineration unit further includes a temperature sensor measuring temperature of the combustion space, and a controller stopping the combustible fluid from being sprayed by controlling the fluid sprayer when a value measured by the temperature sensor exceeds a set temperature.

12. The pyrolysis incineration system of claim 1, wherein the incineration unit further has a heat exchange channel disposed around the furnace for inward heat exchange with the furnace.

13. The pyrolysis incineration system of claim 1, wherein the incineration unit further includes a stirring module stirring deposits accumulated on the bottom of the furnace while moving on the bottom of the furnace, and a purge gas spray nozzle disposed on a side of the stirring module and spraying purge gas toward the deposits.

14. The pyrolysis incineration system of claim 13, wherein the stirring module includes:

a movable bar horizontally disposed and connected to a driving device; and

a contact bar connected to an end of the movable bar and performing stirring, and

the purge gas spray module is disposed on the outer side of the movable bar and a channel connected to the purge gas spray nozzle to move purge gas is formed in the movable bar.

15. The pyrolysis incineration system of claim 1, further comprising a transport vehicle having a loading space,

wherein the incineration unit is loaded and burns an incineration material in the loading space.

16. The pyrolysis incineration system of claim 15, further comprising a carriage connected to the transport vehicle and a movable fuel supplier including a pulverizing module loaded on the carriage.

17. The pyrolysis incineration system of claim 16, further comprising a conveyer installed between the carriage and the transport vehicle and having both ends respectively extending under the pulverizing module and extending over the fuel inlet of the furnace.

18. The pyrolysis incineration system of claim 17, wherein the carriage is connected to the transport vehicle through a towing device and the conveyer is loaded and transported in the loading space.

19. The pyrolysis incineration system of claim 15, wherein the incineration unit has a plurality of wheel at the lower portion and can be moved and operated outside the loading space.