CN118031221B

CN118031221B - Garbage incineration fly ash dioxin pyrolysis system

Info

Publication number: CN118031221B
Application number: CN202410348240.4A
Authority: CN
Inventors: 张国亮; 李贺; 韩晓强; 任成茂; 高忠超
Original assignee: Beijing Hongjie Lantian Technology Co ltd
Current assignee: Beijing Hongjie Lantian Technology Co ltd
Filing date: 2024-03-26
Publication date: 2024-07-12
Anticipated expiration: 2044-03-26

Abstract

The invention relates to a garbage incineration fly ash dioxin pyrolysis system, which aims to solve the technical problem that the current garbage incineration fly ash dioxin pyrolysis system is large in volume, and comprises a base, wherein a rotary structure is fixedly arranged on the base, an outer pyrolysis kiln is arranged on the rotary structure, an inner pyrolysis unit is arranged in the outer pyrolysis kiln, a middle pyrolysis unit is arranged in a gap between the outer pyrolysis kiln and the inner pyrolysis unit, an inner cavity of the inner pyrolysis unit forms a first pyrolysis cavity, the tail part of the inner pyrolysis unit is communicated with the tail part of the inner pyrolysis unit, a second pyrolysis cavity is formed between the inner pyrolysis unit and the gap between the inner pyrolysis unit, the head part of the inner pyrolysis unit is communicated with the head part of the outer pyrolysis kiln, and a third pyrolysis cavity is formed between the inner pyrolysis unit and the gap between the outer pyrolysis kiln; the inner part of the pyrolysis unit is provided with a centrifugal mechanism, the pyrolysis unit and the tail end of the outer pyrolysis kiln are in transmission connection through a linkage mechanism, and the linkage mechanism is fixedly arranged on the base through a connecting block.

Description

Garbage incineration fly ash dioxin pyrolysis system

Technical Field

The invention relates to the technical field of garbage incineration, in particular to a garbage incineration fly ash dioxin pyrolysis system.

Background

With the continuous advancement of the urban process, many large and medium cities suffer from the trouble of 'garbage surrounding cities'. The garbage incineration technology has become an effective method for urban garbage reduction, but the fly ash after garbage incineration generates environmental pollution, the pollution attribute of the fly ash mainly comes from dioxin organic pollutants and heavy metal elements, and the dioxin compound is one of the known most toxic compounds, has century toxicity, has teratogenicity, carcinogenicity and mutagenicity, and has the capability of damaging human reproductive systems and immune systems. The research shows that the dioxin in the fly ash accounts for about 70% of the discharge amount of the dioxin in the incineration process. Therefore, fly ash is a main carrier for discharging dioxin in the garbage incineration process and must be removed.

The rotary kiln incinerator is used as main equipment for pyrolysis of dioxin in waste incineration fly ash, can treat solid waste and waste liquid simultaneously, is almost suitable for all incineratable garbage, and comprises a waste pretreatment system, an incineration pyrolysis system, a post-treatment system and the like, wherein the waste pretreatment system comprises pretreatment and feeding procedures of waste, the waste enters the rotary kiln of the incineration pyrolysis system for incineration, the rotary kiln incinerator body is a rotatable horizontal cylindrical shell, the shell is made of steel plates, a refractory lining material and a pipe have a certain inclination, after the waste enters the rotary kiln, the waste slowly moves towards the tail along with the rotation of a cylinder body, the kiln body rotates to enable the materials to be fully contacted in the combustion and combustion air process, and after drying and combustion are completed, the fly ash is discharged to the post-treatment system for waste heat recovery, quenching and dust removal, acid gas absorption, flue gas emission and the like.

In the actual design process of the rotary kiln, the inclination, the length, the rotating speed and other aspects are matched, meanwhile, the residence time is ensured to be within 0.5-2 hours, and garbage is combusted sufficiently, so that the length of the rotary kiln is longer, the volume is large, the occupied area is large, and the waste of an installation site is caused, therefore, the rotary kiln with small occupied area and good garbage incineration effect is necessarily designed, and in view of the problem, the invention provides a garbage incineration fly ash dioxin pyrolysis system.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, adapt to the actual needs, and provide a garbage incineration fly ash dioxin pyrolysis system so as to solve the technical problem that the current garbage incineration fly ash dioxin pyrolysis system is large in size.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the garbage incineration fly ash dioxin pyrolysis system comprises a base, a rotary structure is fixedly arranged on the base, an outer pyrolysis kiln is arranged on the rotary structure, an inner pyrolysis unit is arranged in the outer pyrolysis kiln, a middle pyrolysis unit is arranged in a gap between the outer pyrolysis kiln and the inner pyrolysis unit, an inner cavity of the inner pyrolysis unit forms a first pyrolysis cavity, the tail of the inner pyrolysis unit is communicated with the tail of the inner pyrolysis unit, the inner pyrolysis unit and the gap between the inner pyrolysis unit form a second pyrolysis cavity, the head of the inner pyrolysis unit is communicated with the head of the outer pyrolysis kiln, and a gap between the inner pyrolysis unit and the outer pyrolysis kiln forms a third pyrolysis cavity;

The inner part of the pyrolysis unit is provided with a centrifugal mechanism, the pyrolysis unit and the tail end of the outer pyrolysis kiln are in transmission connection through a linkage mechanism, and the linkage mechanism is fixedly arranged on the base through a connecting block.

Preferably, the pyrolysis unit comprises an inner pyrolysis tube, a feeding connecting tube is fixedly arranged at the end of the pyrolysis tube head, the pyrolysis tube is rotationally connected with a circular plate A through a mechanical sealing structure, the head of the pyrolysis tube is provided with a plurality of material returning grooves in an annular equidistant structure, and the tail of the pyrolysis unit is provided with a plurality of material discharging grooves in an annular equidistant structure;

The return trough is arranged in an inclined structure, and the section of the return trough is of a gradually-enlarged structure from inside to outside.

Preferably, the pyrolysis unit includes well pyrolysis tube, pyrolysis tube head end both sides are connected with first swivel and second swivel through mechanical seal structure rotation respectively, first swivel with outer pyrolysis kiln head end is connected through mechanical seal structure rotation, pyrolysis tube tail end inner edge face is connected with the third swivel through mechanical seal structure rotation, the second swivel with the third swivel respectively with pyrolysis tube both ends are connected through mechanical seal structure rotation, pyrolysis tube head is relative a plurality of through-holes have evenly been arranged to the feed back groove position, through-hole cross-section area is less than feed back groove cross-section area, spiral conveyer trough has been seted up to pyrolysis tube inner chamber surface.

Preferably, the head of the inner cavity of the pyrolysis tube is in a round table shape, the cross-sectional area of the head end of the inner cavity of the pyrolysis tube is smaller than that of the tail end of the pyrolysis tube, and the head end of the inner cavity of the pyrolysis tube is communicated with the feed back groove.

Preferably, the centrifugal mechanism comprises a main shaft, the main shaft is arranged in the pyrolysis tube cavity, the head end of the main shaft is rotationally connected with a rotating block, the rotating block is fixedly connected with the surface of the inner cavity of the feeding connecting tube through a plurality of connecting plates, the tail end of the main shaft penetrates out of the circular plate A, the main shaft is rotationally connected with the circular plate A through a mechanical sealing structure, and a plurality of centrifugal plates are fixedly arranged on the main shaft in an annular equidistant structure.

Preferably, the spindle head is provided with a plurality of rotating grooves corresponding to the positions of the centrifugal plates, the rotating grooves are provided with pressing plates, the pressing plates are connected with the rotating grooves in a rotating mode through rotating rods, and the surfaces of the pressing plates form umbrella-shaped pressure surfaces.

Preferably, the centrifugal plate is provided with movable grooves adapted to the pressing plates at two ends, the movable grooves are of structures with gradually reduced depth from inside to outside, and the two ends of the pressing plates are respectively connected with the two corresponding movable grooves in a sliding mode.

Preferably, the linkage mechanism comprises a mounting circular plate, the mounting circular plate is fixedly arranged on the connecting block, an inner rotating ring groove, a middle rotating ring groove and an outer rotating ring groove are respectively formed in the head end of the mounting circular plate from inside to outside, an inner ring block, a middle ring block and an outer ring block are respectively and rotatably connected with the inner rotating ring groove, the middle part of the inner edge surface of the inner ring block, the middle part of the inner edge surface of the middle ring block and the middle part of the inner edge surface of the outer ring block, tooth grooves are formed in the middle part of the outer edge surface of the inner ring block and the middle part of the outer edge surface of the middle ring block, at least one gear A is arranged in the gap between the middle ring block and the outer ring block and in the gap between the middle ring block, two ends of the gear A are respectively meshed with the corresponding two tooth grooves, the gear A connecting end is rotationally connected with the head end of the installation circular plate through a rotating shaft A, the head end of the middle ring block and the head end of the outer ring block are rotationally connected through a rotating ring A, the head end of the middle ring block and the head end of the inner ring block are rotationally connected through a rotating ring B, the head end of the inner ring block is rotationally connected with a circular plate B, the circular plate B is rotationally connected with a rotating shaft B, the head end of the rotating shaft B is fixedly connected with the tail end of the main shaft, the tail end of the rotating shaft B is fixedly connected with a gear B, the gear B is in meshed connection with a tooth slot on the inner edge surface of the inner ring block through a gear C, the head end of the inner ring block, the head end of the middle ring block and the head end of the outer ring block are respectively connected with the tail end of the inner pyrolysis tube and the tail end of the outer pyrolysis tube through a plurality of connecting rods which are arranged in an annular equidistant structure.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the invention, the inner pyrolysis unit is arranged in the outer pyrolysis kiln, the middle pyrolysis unit is arranged in the gap between the outer pyrolysis kiln and the inner pyrolysis unit, the inner cavity of the inner pyrolysis unit forms the first pyrolysis cavity, the tail part of the inner pyrolysis unit is communicated with the tail part of the inner pyrolysis unit, the gap between the inner pyrolysis unit and the inner pyrolysis unit forms the second pyrolysis cavity, the head part of the inner pyrolysis unit is communicated with the head part of the outer pyrolysis kiln, the gap between the inner pyrolysis unit and the outer pyrolysis kiln forms the third pyrolysis cavity, garbage is pyrolyzed in the first pyrolysis cavity, the second pyrolysis cavity and the third pyrolysis cavity in sequence, so that the heat transfer effect of unit volume is improved, the volume of a garbage incineration fly ash dioxin pyrolysis system is reduced, and the technical problem that the current garbage incineration fly ash dioxin pyrolysis system is large in volume is solved.

2. According to the invention, the head of the inner cavity of the middle pyrolysis tube is in a round table shape, the cross-sectional area of the head end of the inner cavity of the pyrolysis tube is smaller than that of the tail end of the pyrolysis tube, and the head end of the inner cavity of the pyrolysis tube is communicated with the return chute, so that in the pyrolysis process, garbage larger than the through hole enters the first pyrolysis cavity from the return chute to be pyrolyzed again, the garbage incineration effect is ensured, dioxin is not easy to generate, the return chute is arranged in an inclined structure, the cross-section of the return chute is in an gradually-enlarged structure from inside to outside, the size of the garbage entering the first pyrolysis channel again is improved, and the garbage backflow is facilitated.

3. According to the invention, by arranging the centrifugal mechanism, garbage is sent into a plurality of cavities formed by the top surfaces of the pressing plates and the centrifugal plates at the two ends of the pressing plates by the feeding connecting pipes, the centrifugal plates and the pressing plates rotate to drive the garbage to circumferentially rotate, and under the action of centrifugal force, the garbage can be contacted with the pyrolysis surface of the pyrolysis tube in all directions, so that the contact area of garbage pyrolysis is increased, and the pyrolysis effect is improved.

4. According to the invention, the pressing plates are arranged, so that the rotating pressing plates rotate relative to the rotating grooves through the rotating rods under the action of centrifugal force, the pressing plates extrude the garbage, so that the garbage is more tightly contacted with the pyrolysis surface of the pyrolysis tube, the pyrolysis effect is further improved, the surfaces of the pressing plates form umbrella-shaped pressure surfaces, the umbrella-shaped pressure surfaces correspond to the state that the garbage is gradually reduced after being sent from the feeding connecting tube and passes through the pyrolysis volume, any umbrella-shaped cross section is round as the cross section of the inner cavity of the pyrolysis tube, and the pressure on the garbage is relatively uniform.

5. According to the invention, the movable groove is matched with the pressing plate, and the movable groove is in a structure with gradually reduced depth from inside to outside, so that when the pressing plate is opened under the action of centrifugal force, the two ends of the pressing plate are in consistent contact with the movable groove, excessive garbage is reduced to enter the cavity formed by the ground of the pressing plate and the centrifugal plates at the two ends of the pressing plate, the pressing plate cuts and cleans the movable groove in the moving process, garbage scraps are pushed out when the pressing plate is opened, and the service life of the pressing plate is prolonged.

6. According to the invention, the linkage mechanism is arranged, so that when the rotary structure drives the outer pyrolysis kiln to rotate, the connecting rod drives the outer ring block to rotate, so that the two gears A, the middle ring block, the inner ring block and the inner ring block rotate, the middle pyrolysis tube and the inner pyrolysis tube rotate, meanwhile, the inner ring block and the rotation drive the gear C and the gear B, so that the rotary structure rotating part integrally rotates, the structure is compact, the rest power is not needed, and the tooth number of the tooth slot on the outer ring block is larger than the tooth number of the gear B, so that the rotary structure has the effect of accelerating the rotation of the gear B, the integral rotation of the rotary structure rotating part is faster, the centrifugal force generated by the rotation of the rotary structure rotating part is improved, and the pyrolysis effect of garbage is indirectly improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of a portion of the structure of the present invention;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is an enlarged schematic view of a part of the structure of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the outer pyrolysis kiln, the inner pyrolysis unit and the pyrolysis unit according to the present invention;

FIG. 6 is an enlarged schematic view of a part of the structure of FIG. 5;

FIG. 7 is a schematic view of a part of the centrifugal mechanism of the present invention;

FIG. 8 is a schematic view of the cross-sectional structure of FIG. 7;

FIG. 9 is an enlarged schematic view of a partial structure of the present invention;

In the figure: 1. a base; 2. a rotating structure; 3. an outer pyrolysis kiln; 4. a pyrolysis unit; 5. a pyrolysis unit; 6. a centrifugal mechanism; 7. a linkage mechanism; 8. a connecting block;

41. An inner pyrolysis tube; 42. a feeding connecting pipe; 43. a circular plate A; 44. a feed back groove; 45. a discharge chute;

51. A medium pyrolysis tube; 52. a first swivel; 53. a second swivel; 54. a third swivel; 55. a through hole; 56. a spiral conveying groove;

61. A main shaft; 62. a rotating block; 63. a connecting plate; 64. a centrifugal plate; 65. a rotary groove; 66. a pressing plate; 67. a rotating rod; 68. a movable groove;

71. mounting a circular plate; 72. an inner rotary groove; 73. a transit ring groove; 74. an outer swivel groove; 75. an inner ring block; 76. a middle ring block; 77. an outer ring block; 78. tooth slots; 79. a gear A; 710. a rotating shaft A; 711. a swivel A; 712. a swivel B; 713. a circular plate B; 714. a rotating shaft B; 715. a gear B; 716. a gear C; 717. a rotating shaft C; 718. and a connecting rod.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

Examples: the utility model provides a waste incineration flying ash dioxin pyrolysis system, see fig. 1 through 9, including base 1, the rotating structure 2 has been set firmly on base 1, be equipped with outer pyrolysis kiln 3 on the rotating structure 2, concretely, see fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, be equipped with interior pyrolysis unit 4 in the outer pyrolysis kiln 3, interior pyrolysis unit 4 includes interior pyrolysis tube 41, interior pyrolysis tube 41 head end has set firmly feeding takeover 42, interior pyrolysis tube 41 is connected with plectane A43 through mechanical seal structure rotation, interior pyrolysis tube 41 head has offered a plurality of feed back groove 44 in annular equidistant structure, interior pyrolysis unit 4 afterbody has offered a plurality of row feed groove 45 in annular equidistant structure; the return chute 44 is arranged in an inclined structure, and the section of the return chute 44 is in a gradually enlarged structure from inside to outside.

Further, in fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, a middle pyrolysis unit 5 is arranged in a gap between the outer pyrolysis kiln 3 and the inner pyrolysis unit 4, the pyrolysis unit 5 comprises a middle pyrolysis tube 51, two sides of the head end of the pyrolysis tube 51 are respectively connected with a first swivel 52 and a second swivel 53 through a mechanical seal structure in a rotating way, the first swivel 52 is connected with the head end of the outer pyrolysis kiln 3 through the mechanical seal structure in a rotating way, the inner edge surface of the tail end of the pyrolysis tube 51 is connected with a third swivel 54 through the mechanical seal structure in a rotating way, the second swivel 53 and the third swivel 54 are respectively connected with two ends of the pyrolysis tube 41 through the mechanical seal structure in a rotating way, a plurality of through holes 55 are uniformly arranged at positions of the head of the pyrolysis tube 51 corresponding to the return trough 44, the cross section area of the through holes 55 is smaller than the cross section area of the return trough 44, and a spiral conveying trough 56 is formed in the inner cavity surface of the pyrolysis tube 51; through set up pyrolysis tube 51 inner chamber surface and offered spiral conveying groove 56 for the pyrolysis tube 51 of pivoted makes spiral conveying groove 56 can transport rubbish to through-hole 55 position, and the rubbish flying ash that is less than through-hole 55 gets out from through-hole 55.

Still further, referring to fig. 5 and 6, the head of the inner cavity of the pyrolysis tube 51 is in a shape of a truncated cone, and the cross-sectional area of the head of the inner cavity of the pyrolysis tube 51 is smaller than the cross-sectional area of the tail of the pyrolysis tube 51, and the head of the inner cavity of the pyrolysis tube 51 is communicated with the feed back groove 44; the inner cavity of the inner pyrolysis unit 4 forms a first pyrolysis cavity, the tail part of the pyrolysis unit 4 is communicated with the tail part of the pyrolysis unit 5, a gap between the pyrolysis unit 4 and the pyrolysis unit 5 forms a second pyrolysis cavity, the head part of the pyrolysis unit 5 is communicated with the head part of the outer pyrolysis kiln 3, and a gap between the pyrolysis unit 5 and the outer pyrolysis kiln 3 forms a third pyrolysis cavity. According to the invention, in the pyrolysis process, garbage larger than the through hole 55 enters the first pyrolysis cavity from the return chute 44 for re-pyrolysis, so that the garbage incineration effect is ensured, dioxin is not easy to generate, the return chute 44 is arranged in an inclined structure, the section of the return chute 44 is in a gradually-enlarged structure from inside to outside, and the size of the garbage entering the first pyrolysis channel again is improved, so that the garbage can flow back conveniently.

It should be noted that, in fig. 2, fig. 3, fig. 4, fig. 6 and fig. 7, the centrifugal mechanism 6 is disposed in the pyrolysis unit 4, the centrifugal mechanism 6 includes a main shaft 61, the main shaft 61 is disposed in the cavity of the inner pyrolysis tube 41, the head end of the main shaft 61 is rotationally connected with a rotating block 62, the rotating block 62 is fixedly connected with the inner cavity surface of the feeding connecting tube 42 through a plurality of connecting plates 63, the tail end of the main shaft 61 penetrates out of the circular plate a43, the main shaft 61 is rotationally connected with the circular plate a43 through a mechanical sealing structure, and a plurality of centrifugal plates 64 are fixedly disposed on the main shaft 61 in an annular equidistant structure. According to the invention, by arranging the centrifugal mechanism 6, garbage is sent into a plurality of cavities formed by the top surfaces of the pressing plates 66 and the centrifugal plates 64 at the two ends of the pressing plates by the feeding connecting pipe 42, the centrifugal plates 64 and the pressing plates 66 rotate to drive the garbage to circumferentially rotate, and under the action of centrifugal force, the garbage can be contacted with the pyrolysis surface of the pyrolysis tube 41 in all directions, so that the contact area of garbage pyrolysis is increased, and the pyrolysis effect is improved.

It should be noted that, in fig. 7, fig. 8 and fig. 9, a plurality of rotating grooves 65 are formed at the head of the spindle 61 opposite to the plurality of centrifugal plates 64, a pressing plate 66 is disposed on the rotating groove 65, the pressing plate 66 is rotationally connected with the rotating groove 65 through a rotating rod 67, and the surfaces of the plurality of pressing plates 66 form an umbrella-shaped pressure surface. According to the invention, the pressing plates 66 are arranged, so that the rotating pressing plates 66 rotate relative to the rotating grooves 65 through the rotating rods 67 under the action of centrifugal force, the pressing plates 66 extrude garbage, so that the garbage is more tightly contacted with the pyrolysis surface of the pyrolysis tube 41, the pyrolysis effect is further improved, the surfaces of the pressing plates 66 form umbrella-shaped pressure surfaces, the umbrella-shaped pressure surfaces correspond to the state that the garbage is gradually reduced after being sent from the feeding connecting tube 42, any umbrella-shaped cross section is round as the cross section of the inner cavity of the pyrolysis tube 41, and the pressure on the garbage is relatively uniform.

It should be noted that, in fig. 7, fig. 8 and fig. 9, the two ends of the centrifugal plate 64 are respectively provided with a movable groove 68 adapted to the pressing plate 66, the movable groove 68 has a structure with gradually decreasing depth from inside to outside, and the two ends of the pressing plate 66 are respectively connected with the two corresponding movable grooves 68 in a sliding manner. According to the invention, through the arrangement, when the pressing plate 66 is opened under the action of centrifugal force, the two ends of the pressing plate 66 are in consistent contact with the movable grooves 68, so that excessive garbage is reduced to enter the cavity formed by the ground of the pressing plate 66 and the centrifugal plates 64 at the two ends of the pressing plate 66, the movable grooves 68 are scraped and cleaned by the pressing plate 66 in the moving process, garbage scraps are pushed out when the pressing plate 66 is opened, and the service life of the moving pressing plate 66 is prolonged.

In addition, in fig. 1,2,3 and 4, the centrifugal mechanism 6, the pyrolysis unit 4, the pyrolysis unit 5 and the tail end of the outer pyrolysis kiln 3 are connected in a transmission manner through a linkage mechanism 7, the linkage mechanism 7 is fixedly arranged on the base 1 through a connecting block 8, wherein the linkage mechanism 7 comprises a mounting circular plate 71, the mounting circular plate 71 is fixedly arranged on the connecting block 8, the head end of the mounting circular plate 71 is respectively provided with an inner annular groove 72, a middle annular groove 73 and an outer annular groove 74 from inside to outside, the inner annular groove 72, the middle annular groove 73 and the outer annular groove 74 are respectively connected with an inner annular block 75, an intermediate annular block 76 and an outer annular block 77 in a rotating manner, tooth grooves 78 are respectively formed in the middle part of the inner edge surface of the inner annular block 75, the middle part of the inner edge surface of the intermediate annular block 76 and the middle edge surface of the outer annular block 77, at least one gear a79 is also arranged in the gaps between the intermediate annular block 76 and the outer annular block 77 and the gaps between the intermediate annular block 76 and the inner annular block 75, the two ends of the gear A79 are respectively meshed with two corresponding tooth grooves 78, the connecting end of the gear A79 is in rotational connection with the head end of the mounting circular plate 71 through a rotating shaft A710, the head ends of the middle ring block 76 and the outer ring block 77 are in rotational connection through a rotating ring A711, the head ends of the middle ring block 76 and the inner ring block 75 are in rotational connection through a rotating ring B712, the head ends of the inner ring block 75 are rotationally connected with a circular plate B713, a rotating shaft B714 is rotationally connected on the circular plate B713, the head ends of the rotating shaft B714 are fixedly connected with the tail end of the main shaft 61, the tail end of the rotating shaft B714 is fixedly connected with a gear B715, the gear B715 is meshed with the tooth grooves 78 on the inner edge surface of the inner ring block 75 through a gear C716, the gear C716 is rotationally connected with the head ends of the mounting circular plate 71 through a rotating shaft C717, the head ends of the inner ring block 75, the middle ring block 76 and the outer ring block 77 are respectively connected with the tail end of the inner pyrolysis tube 41, the tail end of the middle pyrolysis tube 51 and the tail end of the outer pyrolysis kiln 3 are fixedly connected through a plurality of connecting rods 718 which are arranged in an annular equidistant structure. According to the invention, the linkage mechanism 7 is arranged, so that when the rotary structure 2 drives the outer pyrolysis kiln 3 to rotate, the connecting rod 718 drives the outer ring block 77 to rotate, so that the two gears A79, the middle ring block 76, the inner ring block 75 and the inner ring block 41 rotate, the middle pyrolysis tube 51 and the inner pyrolysis tube 41 rotate, meanwhile, the inner ring block 75 and the rotation drive the gear C716 and the gear B715, the rotary part of the rotary structure 2 integrally rotates, the structure is compact, the rest power is not needed, and the tooth number of tooth grooves 78 on the outer ring block 77 is larger than the tooth number of the gear B715, so that the rotary structure 2 has the effect of accelerating the rotation of the gear B715, the integral rotation of the rotary part of the rotary structure 2 is faster, the centrifugal force generated by the rotation of the rotary part of the rotary structure 2 is improved, and the pyrolysis effect of garbage is indirectly improved.

Working principle: the rotary structure 2 drives the outer pyrolysis kiln 3 to rotate, so that the connecting rod 718 drives the outer ring block 77 to rotate, so that the two gears A79, the middle ring block 76, the inner ring block 75 and the inner ring block rotate, the middle pyrolysis tube 51 and the inner pyrolysis tube 41 rotate, meanwhile, the inner ring block 75 and the rotation drive the gear C716 and the gear B715, so that the rotary part of the rotary structure 2 integrally rotates, and the tooth number of tooth grooves 78 on the outer ring block 77 is greater than the tooth number of the gear B715, so that the rotary structure 2 has the function of accelerating the rotation of the gear B715, and the rotary part of the rotary structure 2 integrally rotates faster;

The garbage is sent into a plurality of cavities formed by the top surfaces of the pressing plates 66 and the centrifugal plates 64 at the two ends of the pressing plates by the feeding connecting pipes 42, the centrifugal plates 64 and the pressing plates 66 rotate to drive the garbage to rotate circumferentially, under the action of centrifugal force, the garbage and the pyrolysis surface of the pyrolysis pipe 41 can be contacted in all directions, the contact area of garbage pyrolysis is increased, and the pyrolysis effect is improved, meanwhile, the pressing plates 66 rotate relative to the rotating groove 65 through the rotating rod 67 under the action of centrifugal force, the pressing plates 66 extrude the garbage, so that the garbage is more tightly contacted with the pyrolysis surface of the pyrolysis pipe 41, the pyrolysis effect is further improved, the surfaces of the pressing plates 66 form umbrella-shaped pressure surfaces, the corresponding garbage is sent into the cavity from the feeding connecting pipes 42 and gradually reduced through the pyrolysis volume, the umbrella-shaped arbitrary section is round as the cavity section of the pyrolysis pipe 41, the pressure of the garbage is relatively uniform, the garbage is discharged to the second pyrolysis cavity through the discharge groove 45 after pyrolysis of the first pyrolysis cavity, the garbage is subjected to secondary pyrolysis on the pyrolysis surface of the pyrolysis pipe 51, the spiral conveying groove 56 conveys the garbage to the position of the through hole 55 in the process, the garbage is smaller than the garbage through the through hole 55, the garbage is discharged from the third pyrolysis cavity 55, the garbage is not burned, and the garbage is discharged from the second pyrolysis cavity 55, and the garbage is not discharged from the second pyrolysis cavity to the garbage cavity 55, and the garbage is guaranteed to the garbage is completely and the garbage is completely burned.

The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various modifications and variations can be made without departing from the spirit of the present invention.

Claims

1. The utility model provides a waste incineration flying ash dioxin pyrolysis system, includes base (1), rotating structure (2) have been set firmly on base (1), its characterized in that, be equipped with outer pyrolysis kiln (3) on rotating structure (2), be equipped with interior pyrolysis unit (4) in outer pyrolysis kiln (3), outer pyrolysis kiln (3) with interior pyrolysis unit (4) clearance is equipped with well pyrolysis unit (5), interior cavity of pyrolysis unit (4) constitutes first pyrolysis chamber, interior pyrolysis unit (4) afterbody with pyrolysis unit (5) afterbody intercommunication, interior pyrolysis unit (4) with pyrolysis unit (5) clearance constitutes the second pyrolysis chamber, pyrolysis unit (5) head with outer pyrolysis kiln (3) head intercommunication, interior pyrolysis unit (5) with outer pyrolysis kiln (3) clearance constitutes the third chamber.

The inner part of the pyrolysis unit (4) is provided with a centrifugal mechanism (6), the pyrolysis unit (4), the pyrolysis unit (5) and the tail end of the outer pyrolysis kiln (3) are in transmission connection through a linkage mechanism (7), and the linkage mechanism (7) is fixedly arranged on the base (1) through a connecting block (8);

The inner pyrolysis unit (4) comprises an inner pyrolysis tube (41), a feeding connecting tube (42) is fixedly arranged at the head end of the inner pyrolysis tube (41), a circular plate A (43) is rotatably connected to the inner pyrolysis tube (41) through a mechanical sealing structure, a plurality of return tanks (44) are formed in the head part of the inner pyrolysis tube (41) in an annular equidistant structure, and a plurality of discharge tanks (45) are formed in the tail part of the inner pyrolysis unit (4) in an annular equidistant structure;

Wherein the material returning groove (44) is arranged in an inclined structure, and the section of the material returning groove (44) is in a gradually enlarged structure from inside to outside;

the pyrolysis unit (5) comprises a middle pyrolysis tube (51), a first swivel (52) and a second swivel (53) are respectively connected to the two sides of the head end of the pyrolysis tube (51) through mechanical sealing structures in a rotating mode, the first swivel (52) is connected with the head end of the outer pyrolysis kiln (3) through mechanical sealing structures in a rotating mode, a third swivel (54) is connected to the inner edge surface of the tail end of the pyrolysis tube (51) through mechanical sealing structures in a rotating mode, the second swivel (53) and the third swivel (54) are respectively connected with the two ends of the pyrolysis tube (41) through mechanical sealing structures in a rotating mode, a plurality of through holes (55) are evenly formed in the head portion of the pyrolysis tube (51) corresponding to the position of the return trough (44), the cross section area of the through holes (55) is smaller than that of the cross section area of the return trough (44), and a spiral conveying groove (56) is formed in the inner cavity surface of the pyrolysis tube (51);

The head of the inner cavity of the pyrolysis tube (51) is in a round table shape, the cross-sectional area of the head end of the inner cavity of the pyrolysis tube (51) is smaller than that of the tail end of the pyrolysis tube (51), and the head end of the inner cavity of the pyrolysis tube (51) is communicated with the feed back groove (44).

2. The garbage incineration fly ash dioxin pyrolysis system according to claim 1, characterized in that the centrifugal mechanism (6) comprises a main shaft (61), the main shaft (61) is arranged in the cavity of the pyrolysis tube (41), a rotating block (62) is rotationally connected with the head end of the main shaft (61), the rotating block (62) is fixedly connected with the inner cavity surface of the feeding connecting tube (42) through a plurality of connecting plates (63), the tail end of the main shaft (61) penetrates out of the circular plate A (43), the main shaft (61) is rotationally connected with the circular plate A (43) through a mechanical sealing structure, and a plurality of centrifugal plates (64) are fixedly arranged on the main shaft (61) in an annular equidistant structure.

3. The system for pyrolyzing the waste incineration fly ash dioxin according to claim 2, characterized in that a plurality of rotating grooves (65) are formed in the head of the main shaft (61) relative to the positions of a plurality of centrifugal plates (64), pressing plates (66) are arranged on the rotating grooves (65), the pressing plates (66) are rotationally connected with the rotating grooves (65) through rotating rods (67), and umbrella-shaped pressure surfaces are formed on the surfaces of the pressing plates (66).

4. A waste incineration fly ash dioxin pyrolysis system according to claim 3, characterized in that movable grooves (68) matched with the pressing plates (66) are formed at two ends of the centrifugal plates (64), the movable grooves (68) are of structures with gradually reduced depth from inside to outside, and two ends of the pressing plates (66) are respectively connected with two corresponding movable grooves (68) in a sliding mode.

5. The system according to claim 4, wherein the linkage mechanism (7) comprises a mounting circular plate (71), the mounting circular plate (71) is fixedly arranged on the connecting block (8), an inner annular groove (72), a middle annular groove (73) and an outer annular groove (74) are respectively formed in the head end of the mounting circular plate (71) from inside to outside, the inner annular groove (72), the middle annular groove (73) and the outer annular groove (74) are respectively connected with an inner annular block (75), a middle annular block (76) and an outer annular block (77) in a rotating manner, the middle part of the inner edge surface of the inner annular block (75), the middle part of the inner edge surface of the middle annular block (76) and the middle part of the inner edge surface of the outer annular block (77) are respectively formed in the middle part of the outer edge surface of the middle annular block (75), the inner annular block (76) and the outer edge surface of the outer annular block (77) are respectively formed in a gap, the inner annular block (76) and the inner annular block (75) and the outer annular block (74) are respectively connected with at least one gap gear tooth groove (79) in the head end (79) in a rotating manner, and the two tooth grooves (79) are respectively connected with the two ends of the rotating shafts (79) in a meshed manner.

6. The system of claim 5, wherein the head end of the middle ring block (76) and the head end of the outer ring block (77) are rotationally connected through a swivel a (711), the head end of the middle ring block (76) and the head end of the inner ring block (75) are rotationally connected through a swivel B (712), the head end of the inner ring block (75) is rotationally connected with a circular plate B (713), a rotating shaft B (714) is rotationally connected to the circular plate B (713), the head end of the rotating shaft B (714) is fixedly connected with the tail end of the main shaft (61), the tail end of the rotating shaft B (714) is fixedly connected with a gear B (715), the gear B (715) is in meshed connection with a tooth groove (78) on the inner edge surface of the inner ring block (75) through a gear C (716), and the gear C (716) is rotationally connected with the head end of the mounting circular plate (71) through a rotating shaft C (717).

7. The system of claim 6, wherein the head end of the inner ring block (75), the head end of the middle ring block (76) and the head end of the outer ring block (77) are fixedly connected with the tail end of the inner pyrolysis tube (41), the tail end of the pyrolysis tube (51) and the tail end of the outer pyrolysis kiln (3) through a plurality of connecting rods (718) which are arranged in an annular equidistant structure.