CN113983469A

CN113983469A - Purify burning furnace that burns of dioxin flue gas

Info

Publication number: CN113983469A
Application number: CN202111311264.5A
Authority: CN
Inventors: 丁冲
Original assignee: Shandong Jinshanbao Environmental Protection Equipment Co ltd
Current assignee: Tongliao Hengxin Environmental Protection Engineering Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-01-28
Anticipated expiration: 2041-11-08
Also published as: CN113983469B

Abstract

The invention provides an incinerator for purifying dioxin smoke, which solves the problem that the existing incinerator has defects in use. Including burning furnace, burn the burning furnace internal rotation and install the grid board, the grid board will burn in the burning furnace from supreme fuel district and the burning zone of being divided into down, fixed mounting has the filter screen in the burning furnace, the filter screen will burn the district from supreme burning zone and the secondary burning zone of being divided into down, run through on burning furnace's the side have be located grid board below and with the fuel mouth of fuel district intercommunication, slidable mounting has the fuel barrel that is located burning furnace in the fuel mouth, rotate on burning zone's the inner wall and install a plurality of rods that burn that are the laminating of the top surface of "L" form and bottom and grid tray. The primary combustion area and the secondary combustion area are arranged in the incinerator, the primary combustion area can perform primary combustion on articles such as clothes, and generated smoke can be secondarily combusted when passing through the secondary combustion area, so that dioxin gas in the smoke is purified.

Description

Purify burning furnace that burns of dioxin flue gas

Technical Field

The invention relates to the technical field of incinerators, in particular to an incinerator for purifying dioxin smoke.

Background

Dioxin is a highly toxic substance, has the toxicity 130 times that of the well-known highly toxic substance cyanide and 900 times that of arsenic, is also a first-level carcinogen, and is expressed as acute toxicity of human and animals. The source of dioxin in atmospheric environment is complex, and the dioxin is produced in ferrous metallurgy, nonferrous metallurgy, automobile exhaust, incineration production and the like (including medical waste incineration, waste incineration in chemical plants, domestic waste incineration, coal-fired power plants and the like).

The attention degree of dioxin generated by burning household garbage is highest, the generation mechanism is relatively complex, generally, the burning of the household garbage is lower than 800 ℃, chlorine-containing garbage cannot be completely burnt, dioxin smoke is easily generated, toxic gases such as the dioxin and the like start to be cracked at 705 ℃, and the cracking can be completed fully only by keeping the temperature of above 850 ℃ for more than 2 seconds.

Most of the incinerators are used to incinerate the remains in crematory, and the remains and the extra-corporeal objects such as clothes are incinerated separately, so that the clothes and the plastic wreath are burned in the incinerator by using the fuel such as coal, fuel oil and gas, and the objects to be treated are incinerated and carbonized at high temperature, but the existing incinerator has the following defects in use:

1. when articles such as clothes and the like are successively put into the incinerator during incineration, the newly put articles cover the burning articles instantly, so that the flame is easily extinguished and needs to be ignited again;

2. when incinerated, articles such as clothes are incinerated and carbonized on the outside, but the inside of the articles is likely to be incinerated, so that harmful gases such as dioxin are generated due to insufficient incineration of the articles.

3. The smoke generated during burning is directly discharged into the atmosphere without being purified, which can cause atmospheric pollution and harm to the health of people.

Accordingly, the present invention provides an incinerator for purifying dioxin flue gas to solve the above problems.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the incinerator for purifying dioxin smoke, which effectively solves the problem that the existing incinerator has defects in use.

The incinerator for purifying dioxin smoke comprises an incinerator with a conical top, wherein a feed hopper is fixedly mounted on the side face of the incinerator, and a chimney is fixedly connected to the top of the incinerator;

burn the fuel mouth that runs through on the side of burning furnace be located grid plate below and communicate with the fuel district, slidable mounting has the fuel section of thick bamboo that is located the burning furnace in the fuel mouth, rotate on the inner wall in burning district and install a plurality of "L" form and bottom and grid tray's the top surface laminating burn the rod, every burn the equal fixedly connected with of rod and run through the arc pole of burning district lateral wall, every the equal fixed mounting in one end that the arc pole is in to burn the burning furnace outside has a drive ball, the outside coaxial rotation of burning furnace is installed and is located a plurality of drive ball tops and bottom surface and a plurality of drive ball's the tangent complex ring of burning of surface, fixed mounting has the arc lug that the arc face down on the bottom surface of burning the ring.

Preferably, the coaxial fixed mounting in top of burning the ring has the ring gear of burning, fixed mounting has the motor of burning on the surface of burning the burning furnace, burn in the axis of rotation of motor fixed mounting have with burn the ring gear meshing burn the gear, the coaxial fixed mounting in bottom of grid board has the grid ring gear, fixed mounting has the grid motor on the lateral surface of burning the burning furnace, fixed mounting has the grid gear with grid ring gear meshing in the axis of rotation of grid motor.

Preferably, an air inlet pipe communicated with the fuel area penetrates through and is fixedly installed on the outer surface of the incinerator, a fuel sliding groove in the front-back direction is formed in the bottom of the incinerator, and an ash outlet pipe in the fuel sliding groove penetrates through and is fixedly connected to the bottom of the fuel cylinder.

Preferably, coaxial fixed mounting has to be on the inner wall in secondary incineration area and is hopper-shaped and thin end toper kuppe that the top was sealed up, coaxial fixed mounting has to be hopper-shaped, thin end open-top's toper flow guide cover up in the toper kuppe, there is the space between the top of toper flow guide cover and the top inner wall of toper kuppe, it has a plurality of outlet flue holes that are located toper flow guide cover bottom top to run through on the side of toper kuppe, coaxial fixed mounting has the outer heating pipe that is located the toper flow guide cover thin end outside and is located the inboard inner heating pipe of toper flow guide cover on the top inner wall of toper kuppe.

Preferably, a plurality of air inlet pipes communicated with the interior of the conical air guide sleeve penetrate and are fixed on the conical side wall of the incinerator.

Preferably, the middle part of the conical air guide sleeve is coaxially and rotatably provided with a flue gas fan blade positioned in the conical backflow sleeve, and the flue gas fan blade is connected with a fan blade motor fixedly arranged at the top of the conical air guide sleeve.

Preferably, a plurality of cooling nozzles positioned outside the conical air guide sleeve penetrate and are fixedly arranged on the side wall of the incinerator, and a water outlet pipe positioned at the bottommost part of the secondary combustion area penetrates and is fixedly arranged on the side wall of the incinerator.

Preferably, each air inlet pipe is connected with an air outlet nozzle which is positioned inside the incinerator and faces the chimney respectively.

Compared with the prior art, the invention has the following advantages:

1. the incinerator is internally provided with the primary combustion area and the secondary combustion area, the primary combustion area can perform primary combustion on articles such as clothes, and generated flue gas can be subjected to secondary combustion when passing through the secondary combustion area, so that dioxin gas in the flue gas is purified;

2. when articles such as clothes and the like are thrown onto the grid plate for combustion, the clothes can be stirred by the plurality of burning rods, so that all the clothes can be fully combusted, and the combusted carbon dust can fall into the fuel cylinder for collection;

3. the smoke is sequentially combusted by the inner heating pipe and the outer heating pipe when passing through the secondary combustion zone, and the smoke fan blades can stir and drive the smoke entering the conical guide cover upwards when rotating, so that the smoke can be fully contacted with the inner heating pipe and combusted;

4. after passing through the smoke outlet holes and reaching the inside of the incinerator, the smoke subjected to secondary combustion moves upwards under the drive of airflow generated by the air outlet nozzles and is discharged out of the incinerator from the chimney;

the smoke purifying and filtering device has the advantages of clear design thought, simple structure and simple operation, can purify and filter smoke generated by burning clothes and other articles, and has strong practicability.

Drawings

FIG. 1 is a perspective view of a fuel cartridge of the present invention when open.

Fig. 2 is a perspective view of the present invention.

FIG. 3 is a schematic cross-sectional view of the present invention.

FIG. 4 is a schematic sectional view of the incineration rod of the invention in motion.

FIG. 5 is a schematic perspective view of a primary incineration zone according to the present invention.

FIG. 6 is a schematic perspective view of a secondary combustion zone according to the present invention.

FIG. 7 is a schematic perspective view of a secondary combustion zone of the present invention.

FIG. 8 is a schematic plan view of the primary incineration zone of the present invention.

Detailed Description

The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 8. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The embodiment I of the invention relates to an incinerator for purifying dioxin smoke, which comprises an incinerator 1 with a conical top, wherein the side wall of the incinerator 1 is built by heat-resistant bricks, the outer side of the incinerator 1 is covered by a layer of metal plate, a feed hopper 01 is fixedly installed on the side surface of the incinerator 1, articles such as clothes or plastic wreaths to be incinerated can be put into the incinerator 1 from the feed hopper 01 for incineration, the incinerator 1 can be manufactured into a large-scale incinerator for incineration of large articles and also can be manufactured into a small-scale incinerator for incineration of small articles, the size of the incinerator 1 can be changed according to the needs of customers, the size of the feed hopper 01 is also changed correspondingly, a chimney 02 is fixedly connected to the top of the incinerator 1, smoke generated in the incinerator 1 can be discharged into the atmosphere from the chimney 02, a grating plate 2 is coaxially and rotatably installed at the lower end inside the incinerator 1, the grating plate 2 is made of burning-resistant steel, the grating plate 2 is prevented from being burnt and deformed, the grating plate 2 can rotate in the incinerator 1, articles such as clothes thrown in from a feed inlet 01 can fall on the grating plate 2, the grating plate 2 divides the incinerator 1 into a fuel area 3 and an incineration area 4 from bottom to top, fuel is arranged in the fuel area 3 and can burn the articles such as clothes on the grating plate 2, a filter screen 5 positioned above a feed hopper 01 is coaxially and fixedly arranged in the middle of the incinerator 1, hot gas generated by incineration can bring massive particulate matters which are not burnt sufficiently when rising, even can be directly discharged into the atmosphere from a chimney, the filter screen 5 can intercept massive particulate matters to enable the massive particulate matters to burn sufficiently, the filter screen 5 divides the incineration area 4 into a primary incineration area 6 and a secondary incineration area 7 from bottom to top, and the space above the grating plate 2 and below the filter screen 5 is a primary incineration area 6, articles such as clothes and the like which are put into the primary burning area 6 can be burnt, and the generated smoke can pass through the filter screen 5 to reach the secondary burning area 7 for secondary burning, so that dioxin in the smoke is reduced, and finally the smoke is discharged into the atmosphere from the chimney 02, and the atmospheric pollution can be effectively reduced;

the side of the incinerator 1 is penetrated with a fuel port 8 which is arranged below the grid plate 2 and is communicated with the fuel area 3, the fuel port 8 is internally provided with a fuel cylinder 9 which is arranged in the incinerator 1 in a sliding way, as shown in figure 1, the fuel cylinder 9 can be pulled out from the fuel port 8 and can add fuel into the fuel cylinder 9, carbon ash burnt on the grid plate 2 can fall into the fuel cylinder 9 for collection, the inner wall of the primary burning area 6 is rotatably provided with a plurality of burning sticks 10 which are L-shaped and the bottoms of which are attached to the top surface of the grid plate 2, the burning sticks 10 are made of burning-resistant steel pipes, the burning sticks 10 are prevented from being burnt and deformed, as shown in figures 3-5, when each burning stick 10 rotates on the inner wall of the incinerator 1, one end on the top surface of the grid plate 2 can pick up articles such as clothes upwards, and the clothes accumulation on the grid plate 2 is avoided too much, under the condition that the combustion in the clothes cannot be achieved, the clothes can be completely combusted by picking up the clothes through the ejector rod incineration rods 10, partial carbon dust remains on the top of the grid plate 2 after the combustion of the clothes is finished, the grid plate 2 can be rotated at the moment, and the carbon dust remaining on the grid plate 2 can be swept into the fuel cylinder 9 below to be collected when the grid plate 2 rotates due to the fact that the bottoms of the incineration rods 10 are attached to the top surface of the grid plate 2;

each incineration rod 10 is fixedly connected with an arc-shaped rod 11 penetrating through the side wall of the primary combustion area 6, a hole matched with each arc-shaped rod 11 is formed in the side wall of the incineration furnace 1, the incineration rods 10 can be driven to rotate when the arc-shaped rods 11 slide inwards on the side wall of the incineration furnace 1, one end, positioned outside the incineration furnace 1, of each arc-shaped rod 11 is fixedly provided with a driving ball 12, the driving balls 12 can move synchronously with the arc-shaped rods 11, an incineration ring 13 which is positioned above the driving balls 12 and is matched with the outer surfaces of the driving balls 12 in a tangent mode is coaxially and rotatably installed outside the incineration furnace 1, an arc-shaped convex block 14 with a downward arc surface is fixedly installed on the bottom surface of the incineration ring 13, the incineration ring 13 can rotate outside the incineration furnace 1 and can drive the arc-shaped convex block 14 to do circular motion when rotating, as shown in the attached figures 3-5, when the arc-shaped projection 14 moves to one of the driving balls 12, the driving balls 12 can be pressed downwards, the driving balls 12 can drive the arc-shaped rod 11 to slide in the incinerator 1, so as to drive the incineration rod 10 to rotate to pick up clothes, so that the clothes can be sufficiently combusted, dioxin in smoke gas is reduced fundamentally, the smoke gas can be combusted again when passing through the secondary incineration area 7, so as to reduce the dioxin in the smoke gas again, after the arc-shaped projection 14 is separated from the driving balls 12, the incineration rod 10 can swing and reset towards the inner wall of the incinerator 1 under the action of self gravity, if the incineration rod 10 lifts the clothes upwards, the clothes can fall below the incineration rod 10, so that the incineration rod 10 cannot reset, but after the clothes are burnt into carbon ash by fuel in the combustion cylinder 9, the incineration rod 10 can reset.

In the second embodiment, on the basis of the first embodiment, an incineration gear ring 15 is coaxially and fixedly mounted at the top of the incineration ring 13, an incineration motor 16 is fixedly mounted on the outer surface of the incinerator 1, the incineration motor 16 is connected with a power supply and a control switch, an incineration gear 17 meshed with the incineration gear ring 15 is fixedly mounted on a rotating shaft of the incineration motor 16, and the incineration gear 17 is driven by the incineration motor 16 to rotate so as to drive the incineration gear ring 15 and the incineration ring 13 to rotate, so that the plurality of incineration rollers 10 can rotate in sequence to flip over articles such as clothes;

the coaxial fixed mounting in bottom of grid plate 2 has grid ring gear 18, fixed mounting has grid motor 19 on the lateral surface of burning furnace 1, grid motor 19 is connected with power supply and control switch, fixed mounting has grid gear 20 with grid ring gear 18 meshing in the axis of rotation of grid motor 19, and grid motor 19 can drive grid ring gear 18 and grid plate 2 when driving grid gear 20 and rotate to the cooperation is a plurality of to burn rod 10 and is carried out the collection of carbon dust.

In the third embodiment, on the basis of the second embodiment, an air inlet pipe 21 communicated with the fuel area 3 is fixedly arranged on the outer surface of the incinerator 1 in a penetrating way, the air inlet pipe 21 is connected with an air pump which is connected with a power supply and a control switch, air can be supplied to the fuel cylinder 9 through the air inlet pipe 21 to support combustion, the fuel is prevented from being extinguished in the incinerator 1, the bottom of the incinerator 1 is provided with a fuel chute 22 in the front-back direction, the bottom of the fuel cylinder 9 penetrates through and is fixedly connected with an ash discharging pipe 23 in the fuel chute 22, after clothes are burnt, the fuel cartridge 9 can be slid outwards, at which time the ash pipe 23 will slide outwards in the fuel chute 22, the ash tube 23 may then be opened so that the soot in the fuel cartridge 9 may be discharged from the ash tube 23 to another container for collection, and the residual soot in the fuel cartridge 9 may be brushed into the ash tube 23 using a brush.

In a fourth embodiment, on the basis of the first embodiment, a funnel-shaped conical air guide sleeve 24 with a narrow end facing upwards and a sealed top is coaxially and fixedly installed on the inner wall of the secondary incineration zone 7, a funnel-shaped conical backflow sleeve 25 with a narrow end facing upwards and an open top is coaxially and fixedly installed in the conical air guide sleeve 24, a gap is formed between the top end of the conical backflow sleeve 25 and the inner wall of the top of the conical air guide sleeve 24, a plurality of smoke outlet holes 26 located above the bottom of the conical backflow sleeve 24 penetrate through the side surface of the conical air guide sleeve 24, as shown in fig. 6 and 7, generated smoke passes through the filter screen 5 and then reaches the inside of the conical backflow sleeve 25, then passes through the gap and reaches the space between the conical air guide sleeve 24 and the conical backflow sleeve 25, and then can pass through the smoke outlet holes 26 and then reaches the space above the conical backflow sleeve 24 in the incinerator 1, and a conical air guide sleeve 24 is coaxially and fixedly installed on the inner wall of the top of the conical air guide sleeve 24 and is located outside the narrow end of the conical backflow sleeve 25 Outer heating pipe 27 and the interior heating pipe 28 that is located toper return flow cover 25 inboard, flue gas can be burnt by interior heating pipe 28 when arriving toper return flow cover 25 inside, then the flue gas can be burnt by outer heating pipe 27 when passing the outside that the space arrived toper return flow cover 25, can make the flue gas lengthen at the time of postcombustion district 7 dwell through toper return flow cover 25 and toper kuppe 24's cooperation, the temperature of interior heating pipe 28 and outer heating pipe 27 all can reach more than 850 ℃, thereby can carry out effectual burning and purification to the dioxin in the flue gas.

In the fifth embodiment, on the basis of the fourth embodiment, a plurality of air inlet pipes 29 communicated with the inside of the conical air guide sleeve 24 are fixedly penetrated through the conical side wall of the incinerator 1, the plurality of air inlet pipes 29 are connected with an air pump, and the plurality of air inlet pipes 29 can provide air for supporting combustion in the secondary combustion area 7.

Sixth embodiment, on the basis of fourth embodiment, the flue gas flabellum 30 that is located toper backward flow cover 25 is installed in the coaxial rotation in middle part of toper kuppe 24, can produce ascending air current when flue gas flabellum 30 rotates to the flue gas upward movement in the toper backward flow cover 25 has just been got into in the drive, and can mix the flue gas and roll in toper backward flow cover 25 when flue gas flabellum 30 rotates, thereby make flue gas and the abundant contact combustion of internal heating pipe 28, flue gas flabellum 30 is connected with the flabellum motor 31 of fixed mounting at toper kuppe 24 top, flabellum motor 31 is connected with power supply and control switch.

Seventh embodiment, on the basis of the fourth embodiment, a plurality of cooling nozzles 32 located outside the tapered air guide sleeve 24 penetrate through and are fixed on the side wall of the incinerator 1, the plurality of cooling nozzles 32 are all connected with a cold water pipe, the cooling nozzles 32 can spray water mist, when flue gas after secondary combustion is discharged from the plurality of smoke outlet holes 26, the flue gas can move to the chimney 02, when the flue gas passes through the plurality of cooling nozzles 32, the flue gas can be cooled by the water mist and dust and particulate matters in the flue gas can be washed away, a water outlet pipe 33 located at the bottommost portion of the secondary combustion area 7 penetrates through and is fixed on the side wall of the incinerator 1, and the dust and particulate matters washed away by the water mist can fall onto the top surface of the tapered portion of the tapered air guide sleeve 24 and then are discharged to the outside of the incinerator 1 from the water outlet pipe 33.

In the eighth embodiment, on the basis of the fifth embodiment, each of the air inlet pipes 29 is connected to an air outlet nozzle 34 that is located inside the incinerator 1 and faces the chimney 02, and the airflow generated when the air outlet nozzles 34 inject air to the chimney 02 can drive the flue gas to be rapidly discharged to the atmosphere through the chimney 02.

Compared with the prior art, the invention has the following advantages:

Claims

1. The incinerator for purifying dioxin smoke comprises an incinerator (1) with the top being conical, wherein a feed hopper (01) is fixedly mounted on the side face of the incinerator (1), and a chimney (02) is fixedly connected to the top of the incinerator (1), and is characterized in that a grid plate (2) is mounted at the lower end inside the incinerator (1) in a coaxial rotating mode, the grid plate (2) divides the inside of the incinerator (1) into a fuel area (3) and an incineration area (4) from bottom to top, a filter screen (5) located above the feed hopper (01) is coaxially and fixedly mounted in the middle of the inside of the incinerator (1), and the incineration area (4) is divided into a primary incineration area (6) and a secondary incineration area (7) from bottom to top by the filter screen (5);

a fuel port (8) which is positioned below the grid plate (2) and communicated with the fuel area (3) penetrates through the side surface of the incinerator (1), a fuel cylinder (9) positioned in the incinerator (1) is arranged in the fuel port (8) in a sliding way, a plurality of L-shaped incineration rods (10) the bottoms of which are attached to the top surface of the grid plate (2) are rotatably arranged on the inner wall of the primary incineration area (6), each incineration rod (10) is fixedly connected with an arc-shaped rod (11) penetrating through the side wall of the primary incineration area (6), one end of each arc-shaped rod (11) positioned at the outer side of the incinerator (1) is fixedly provided with a driving ball (12), an incineration ring (13) which is positioned above the plurality of driving balls (12) and the bottom surface of which is in tangential fit with the outer surfaces of the plurality of driving balls (12) is coaxially and rotatably arranged at the outer side of the incinerator (1), and an arc-shaped bump (14) with a downward arc surface is fixedly arranged on the bottom surface of the incineration ring (13).

2. The incinerator for purifying dioxin flue gas according to claim 1, characterized in that an incineration ring gear (15) is fixedly installed coaxially at the top of the incineration ring (13), an incineration motor (16) is fixedly installed on the outer surface of the incinerator (1), an incineration gear (17) meshed with the incineration ring gear (15) is fixedly installed on the rotation shaft of the incineration motor (16), a grating ring gear (18) is fixedly installed coaxially at the bottom of the grating plate (2), a grating motor (19) is fixedly installed on the outer side surface of the incinerator (1), and a grating gear (20) meshed with the grating ring gear (18) is fixedly installed on the rotation shaft of the grating motor (19).

3. The incinerator for purifying dioxin flue gas according to claim 2, wherein an air inlet duct (21) communicating with the fuel area (3) is installed through and fixed to the outer surface of the incinerator (1), a fuel chute (22) is opened at the bottom of the incinerator (1) in the front-rear direction, and an ash discharge duct (23) in the fuel chute (22) is connected through and fixed to the bottom of the fuel cartridge (9).

4. The incinerator for purifying dioxin flue gas according to claim 1, a funnel-shaped conical air guide sleeve (24) with a thin end facing upwards and a sealed top is coaxially and fixedly arranged on the inner wall of the secondary incineration area (7), a cone-shaped reflux cover (25) which is funnel-shaped and has a thin end opening upwards is coaxially and fixedly arranged in the cone-shaped air guide cover (24), a gap is arranged between the top end of the conical backflow cover (25) and the inner wall of the top part of the conical flow guide cover (24), a plurality of smoke outlets (26) positioned above the bottom of the conical backflow cover (24) penetrate through the side surface of the conical flow guide cover (24), and an outer heating pipe (27) positioned on the outer side of the thin end of the conical backflow cover (25) and an inner heating pipe (28) positioned on the inner side of the conical backflow cover (25) are coaxially and fixedly installed on the inner wall of the top of the conical diversion cover (24).

5. An incinerator for purifying dioxin flue gas according to claim 4, characterized in that a plurality of air inlet pipes (29) communicating with the inside of the conical cowling (24) are fixed through the conical side wall of the incinerator (1).

6. The incinerator for purifying dioxin flue gas according to claim 4, wherein the middle part of the conical draft shield (24) is coaxially and rotatably provided with flue gas fan blades (30) positioned in the conical return shield (25), and the flue gas fan blades (30) are connected with a fan blade motor (31) fixedly arranged at the top of the conical draft shield (24).

7. The incinerator for purifying dioxin flue gas according to claim 4, wherein a plurality of cooling nozzles (32) located outside the conical cowling (24) are fixed through the side wall of the incinerator (1), and a water outlet pipe (33) located at the lowest part of the secondary combustion area (7) is fixed through the side wall of the incinerator (1).

8. An incinerator for purifying dioxin flue gas according to claim 5, characterized in that each of said air intake pipes (29) is connected with an air outlet nozzle (34) located inside the incinerator (1) and facing the chimney (02) respectively.