Garbage incinerator fire grate grading air distribution system and technology

Abstract

The invention relates to the technical field of incinerator air distribution, in particular to a garbage incinerator fire grate grading air distribution system and process, which comprises an air suction machine and an air heating machine which are communicated with a garbage stacking chamber, and further comprises an air distribution device, three air regulation boxes connected with the air distribution device through branch pipes, and air regulation devices mounted in the air regulation boxes. The inclination angle of the splitter plate in the air distribution assembly is adjusted, so that the air volume proportion of air entering the drying fire grate, the combustion fire grate and the after-combustion fire grate is adjusted; a rotating column in the cyclone assembly rotates, so that a spiral blade enters a spiral groove from a straight groove, spiral airflow is formed when air flows through, and the air combustion-supporting effect is improved; a rotating column in the tuyere adjusting assembly rotates to drive a second nut to move up and down, the included angle between a second supporting rod and the horizontal plane is adjusted, arc-shaped blades are opened and closed, the size of an air outlet is adjusted, air pressure is controlled, then air is blown to a drying grate, a combustion grate and a burnout grate, and the air distribution effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of air distribution for incinerators, and in particular to a graded air distribution system and process for a grate of a garbage incinerator. Background Art

[0002] Garbage incinerator is a device for incinerating and treating garbage. Garbage burns in the furnace, and the waste gas produced enters the secondary combustion chamber, and then burns completely under the forced combustion of the burner, and then enters the spray dust collector, and is discharged into the atmosphere through the chimney after dust removal. The garbage incinerator consists of four major systems: garbage pre-treatment system, incineration system, smoke biochemical dust removal system and gas generator, integrating automatic feeding, screening, drying, incineration, ash cleaning, dust removal and automatic control.

[0003] Authorization announcement number CN117231987B discloses a deep low-nitrogen combustion air distribution system suitable for a waste incinerator, including an incinerator, a waste heat boiler, a semi-dry reaction tower, a dust collector and a chimney connected in sequence, as well as a flue gas recirculation system and a graded air system. The flue gas recirculation system includes a flue gas recirculation fan and a flue gas heater. The graded air system includes a graded air fan and a graded air nozzle. The design of the graded air system increases the flue gas mixing intensity above the material layer and below the secondary air, strengthens combustion, and promotes the burnout of combustibles. At the same time, the convection and combustion promoted by the graded air can strengthen the radiation heat transfer and convection heat transfer to the material layer, thereby strengthening the drying and pyrolysis of the material layer and playing a role in stabilizing combustion. A flue gas heater is arranged at the outlet of the recirculation fan, and the heating source can come from the drum exhaust or the turbine exhaust. After heating, the circulating flue gas temperature increases to 220~250℃, eliminating problems such as low-temperature corrosion of the recirculation equipment.

[0004] It can be seen that traditional waste incinerators use a unified wind chamber to supply air, and the air supply ratio of the drying section, combustion section, and burnout section is fixed. It is impossible to dynamically adjust the air supply ratio in real time according to the characteristics of the incineration stage: drying requires low temperature and large air volume, and combustion requires high temperature and low oxygen. In addition, the unified air supply to the drying section, combustion section, and burnout section is straight air, and the wind pressure is fixed. The wind pressure cannot be controlled for different stages, resulting in convection, which affects the air supply effect.

[0005] In view of this, we propose a graded air distribution system and process for the grate of a garbage incinerator. Summary of the invention

[0006] In order to overcome the defects in the prior art, the object of the present invention is to provide a garbage incinerator grate graded air distribution system and process to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A waste incinerator grate graded air distribution system and process, comprising an air suction machine and an air heater connected to a waste storage chamber, an air distribution device, three air regulating boxes connected to the air distribution device through branch pipes, and an air regulating device installed in the air regulating boxes, wherein a drying grate, a combustion grate, and a burnout grate are respectively installed above the three air regulating boxes; The air distribution device includes an air distribution box and two air distribution components installed at the top of the air distribution box for adjusting the proportion of air volume entering the three air regulating boxes. The air distribution component includes a diverter plate hinged at the top of the air distribution box, and the ventilation volume is adjusted by changing the rotation angle of the two diverter plates in the air distribution box. The air regulating device includes a bottom cylinder, a cyclone assembly and an air outlet regulating assembly which are arranged in sequence from bottom to top, and a fixed cylinder is welded and fixed at both the upper and lower ends of the cyclone assembly, and the cyclone assembly includes a lower cylinder, an upper cylinder, a plurality of spiral blades slidably connected to the lower cylinder and the upper cylinder, and a first nut welded to the plurality of spiral blades via a plurality of connecting rods; the air outlet regulating assembly includes a plurality of arc-shaped blades hinged to the end of the fixed cylinder located above and a second nut hinged to the plurality of arc-shaped blades via a plurality of second supporting rods, and a rotating column which is threadedly connected to the first nut and the second nut is rotatably connected in the middle of the two fixed cylinders.

[0008] As a further improvement of the present technical solution, the air distribution assembly also includes a threaded rod and a sliding rod rotatably connected to both sides of the top end of the air distribution box, a sliding block arranged on the threaded rod and the sliding block, and a first support rod whose two ends are respectively hinged to the sliding block and the side wall of the diverter plate.

[0009] As a further improvement of the technical solution, the vacuum machine is connected to the air extraction port arranged in the garbage storage room through a pipeline, three air distribution ports are arranged side by side on the top of the air distribution box, the diversion plate is hinged between the air distribution ports, and the end of the threaded rod extends out of the side wall of the air distribution box and is welded and fixed with a first knob handle.

[0010] As a further improvement of the technical solution, a first threaded hole matching the threaded rod is opened in the middle of the slider located on the threaded rod, a through hole matching the size is opened in the middle of the slider located on the slide rod, a first hinge seat is welded and fixed to the side wall of the diverter plate, and a second hinge seat is welded and fixed to the bottom end of the slider.

[0011] As a further improvement of the present technical solution, a plurality of straight grooves are provided on the inner wall of the lower cylinder, and a plurality of spiral grooves are provided on the inner wall of the upper cylinder. The top end of the straight groove is connected to the bottom end of the spiral groove. The outer wall of the rotating column located in the inner part of the upper cylinder is provided with a first external thread. A second threaded hole matching the first external thread is provided in the middle part of the first nut. The number of edges of the first nut, the number of connecting rods, the number of spiral blades, the number of straight grooves and the number of spiral grooves are all equal and their positions correspond one to one.

[0012] As a further improvement of the present technical solution, a limit block is provided in the middle of the fixed cylinder, and a number of fixing rods are welded and fixed on the side walls of the limit block in a divergent manner. The ends of the fixing rods extend out of the fixed cylinder and are welded and fixed to the inner wall of the air regulating box. The rotating column is located on the outer walls of the upper and lower ends of the cyclone assembly and is welded and fixed with limit rings. A limit groove matching the limit ring is opened in the middle of the limit block.

[0013] As a further improvement of the technical solution, a second external thread is provided on the outer wall of the rotating column located inside the air outlet adjustment assembly, a third threaded hole matched with the second external thread is opened in the middle of the second nut, and connecting blades are welded and fixed between each of the arc-shaped blades, and the number of edges of the second nut, the number of the second support rods, the number of the arc-shaped blades and the number of the connecting blades are equal and their positions correspond one to one.

[0014] As a further improvement of the present technical solution, a third hinge seat is welded and fixed to the inner wall of the arc-shaped blade, a fourth hinge seat is welded and fixed to each side wall of the second nut, a hinge protrusion is welded and fixed at the center of the bottom end of the arc-shaped blade, and a fifth hinge seat matching the hinge protrusion is welded and fixed to the top end of the fixing tube on the upper side.

[0015] As a further improvement of the present technical solution, a worm gear is welded and fixed to the bottom end of the rotating column, an adjusting rod is rotatably connected to the bottom end of the rotating column, a worm matched with the worm gear is welded and fixed to one end of the adjusting rod close to the rotating column, and a second knob handle is welded and fixed to the other end of the adjusting rod after extending out of the air adjustment box.

[0016] On the other hand, the present invention also provides a waste incinerator grate graded air distribution process, comprising the following steps: S1. First, start the suction machine to extract air from the garbage storage room through the air extraction port, and then start the air heater to heat the extracted air; S2, the heated air enters the air distribution box, and the threaded rod is rotated by the first knob handle to make the slider slide along the threaded rod and the slide rod, and the angle between the first support rod and the horizontal plane is adjusted, so that the diverter plate is tilted, and the ratio of air entering the drying grate, the combustion grate and the burnout grate is adjusted; S3, then the adjusting rod is rotated by the second knob handle, and the rotating column is driven to rotate under the action of the worm and the worm wheel; S4, the rotating column rotates to drive the first nut to move upward, so that the spiral blade enters the spiral groove from the straight groove, so that when the air passes through the upper cylinder, a spiral airflow is generated; S5. At the same time, the rotating column rotates to drive the second nut to move downward, and the angle between the second support rod and the horizontal plane is increased, so that the arc blades are closed, the size of the air outlet is adjusted, and the wind pressure is increased to blow toward the drying grate, the combustion grate and the burnout grate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The waste incinerator grate graded air distribution system and process, by rotating the threaded rod in the air distribution assembly, the slider slides along the threaded rod and the slide rod, adjusts the angle between the first support rod and the horizontal plane, adjusts the inclination angle of the diverter plate, thereby adjusting the air volume ratio of the air entering the drying grate, the combustion grate and the burnout grate.

[0018] 2. The waste incinerator grate graded air distribution system and process drives the first nut to move upward by rotating the rotating column in the cyclone assembly, so that the spiral blade enters the spiral groove from the straight groove, forming a spiral airflow when air flows through, thereby increasing the air combustion-supporting effect.

[0019] 3. The graded air distribution system and process of the grate of the garbage incinerator drives the second nut to move up and down by rotating the rotating column in the air outlet adjustment component, adjusts the angle between the second support rod and the horizontal plane, makes the arc blades open and close, adjusts the size of the air outlet, controls the wind pressure and blows it to the drying grate, combustion grate and burnout grate, thereby increasing the air distribution effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the air distribution device of the present invention; Figure 3 It is a cross-sectional view of the structure of the air distribution device of the present invention; Figure 4 It is an exploded view of the air distribution device structure of the present invention; Figure 5 It is an exploded view of the air distribution assembly structure of the present invention; Figure 6 It is a cross-sectional view of the regulating box structure of the present invention; Figure 7 It is a structural schematic diagram of the air regulating device of the present invention; Figure 8 It is an exploded view of the air regulating device structure of the present invention; Fig. 9 An exploded view of the cyclone assembly structure of the present invention; Fig.10 An exploded view of the structure of the tuyere adjustment assembly of the present invention; The meaning of each number in the figure is: 1. Air extraction port; 2. Air suction machine; 3. Air heater; 4. air distribution device; 41. air distribution box; 411. air distribution port; 42. air distribution assembly; 421. splitter plate; 4211. first hinge seat; 422. threaded rod; 4221. first knob handle; 423. slide bar; 424. slide block; 4241. first threaded hole; 4242. through hole; 4243. second hinge seat; 425. first support rod; 5. Adjust the bellows; 6. Air adjustment device; 61. Bottom cylinder; 62. Fixed cylinder; 621. Fixed rod; 622. Limit block; 623. Fifth hinge seat; 63. Cyclone assembly; 631. Lower cylinder; 6311. Straight groove; 632. Upper cylinder; 6321. Spiral groove; 633. Spiral blade; 634. First nut; 6341. Second threaded hole; 635. Connecting rod; 64. Air outlet adjustment assembly; 641. Arc blade; 6411, third hinge seat; 6412, hinged protrusion; 642, second support rod; 643, second nut; 6431, third threaded hole; 6432, fourth hinge seat; 644, connecting blade; 65, rotating column; 651, worm gear; 652, limiting ring; 653, first external thread; 654, second external thread; 66, adjusting rod; 661, worm; 662, second knob handle; 7. Drying grate; 8. Combustion grate; 9. Burn out the grate. DETAILED DESCRIPTION

[0022] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as falling within the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0023] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-Figure 10 As shown, the present invention provides a technical solution: The waste incinerator grate graded air distribution system and process include an air suction machine 2 and an air heater 3 connected to a waste storage chamber, an air distribution device 4, three air regulating boxes 5 connected to the air distribution device 4 through branch pipes, and an air regulating device 6 installed in the air regulating boxes 5. A drying grate 7, a combustion grate 8 and a burnout grate 9 are respectively installed above the three air regulating boxes 5. The air outlet of the air heater 3 is connected to the air distribution device 4 through a pipeline; the drying grate 7, the combustion grate 8 and the burnout grate 9 are placed at an angle and their height positions are successively reduced, so that after the garbage is dried by the drying grate 7, it falls on the combustion grate 8 for combustion treatment, and then falls on the burnout grate 9 to be completely burned.

[0025] like Figure 4 As shown, the air distribution device 4 includes an air distribution box 41 and two air distribution components 42 installed at the top of the air distribution box 41 for adjusting the ratio of the air volume entering the three air regulating boxes 5. The air distribution component 42 includes a diverter plate 421 hinged to the top of the air distribution box 41. The ventilation volume is adjusted by changing the rotation angle of the two diverter plates 421 in the air distribution box 41. like Figure 8 As shown, the air regulating device 6 includes a bottom cylinder 61, a cyclone assembly 63 and an air outlet regulating assembly 64 arranged in sequence from bottom to top, and a fixing cylinder 62 is welded and fixed at both the upper and lower ends of the cyclone assembly 63; like Fig. 9As shown, the cyclone assembly 63 includes a lower cylinder 631, an upper cylinder 632, a plurality of spiral blades 633 slidably connected to the lower cylinder 631 and the upper cylinder 632, and a first nut 634 correspondingly welded to the plurality of spiral blades 633 through a plurality of connecting rods 635; like Fig.10 As shown, the air outlet adjustment assembly 64 includes a plurality of arc-shaped blades 641 hinged at the end of a fixed cylinder 62 located above, and a second nut 643 hinged to the plurality of arc-shaped blades 641 via a plurality of second support rods 642. A rotating column 65 threadedly connected to the first nut 634 and the second nut 643 is rotatably connected in the middle of the two fixed cylinders 62.

[0026] Specifically, Figure 5 As shown, the air distribution assembly 42 also includes a threaded rod 422 and a sliding rod 423 rotatably connected to both sides of the top end of the air distribution box 41, a slider 424 arranged on the threaded rod 422 and the sliding rod 423, and a first support rod 425 whose two ends are respectively hinged to the slider 424 and the side wall of the diverter plate 421. The threaded rod 422 rotates to make the slider 424 slide along the threaded rod 422 and the sliding rod 423, and adjust the angle between the first support rod 425 and the horizontal plane, so that the diverter plate 421 is tilted, and the ratio of air entering the drying grate 7, the combustion grate 8 and the burnout grate 9 is adjusted.

[0027] Further, such as Figure 5 As shown, a first threaded hole 4241 matching the threaded rod 422 is opened in the middle of the slider 424 located on the threaded rod 422, and a through hole 4242 matching the size is opened in the middle of the slider 424 located on the slide rod 423. When the threaded rod 422 rotates, the slider 424 moves along the threaded rod 422; a first hinge seat 4211 is welded and fixed to the side wall of the diverter plate 421, and a second hinge seat 4243 is welded and fixed to the bottom end of the slider 424. The first hinge seat 4211 and the second hinge seat 4243 are respectively hinged to the two ends of the first support rod 425.

[0028] Specifically, Figure 3 As shown, the suction machine 2 is connected with the air extraction port 1 arranged in the garbage storage room through a pipeline, so as to extract the odor generated in the garbage storage room and prevent the odor from overflowing and polluting the environment; three air distribution ports 411 are arranged side by side on the top of the air distribution box 41, and the diverter plate 421 is hinged between the two air distribution ports 411. The position design makes the diverter plate 421 tilted to adjust the proportion of air entering each air distribution port 411; the end of the threaded rod 422 extends out of the side wall of the air distribution box 41 and is welded and fixed with a first knob handle 4221, which facilitates the rotation of the threaded rod 422.

[0029] In addition, Figure 8As shown, a limit block 622 is provided in the middle of the fixed cylinder 62, and a plurality of fixed rods 621 are welded and fixed on the side walls of the limit block 622 in a divergent manner. The ends of the fixed rods 621 extend out of the fixed cylinder 62 and are welded and fixed to the inner wall of the air regulating box 5, and the entire air regulating device 6 is fixed by the fixed rods 621; the rotating column 65 is located on the outer walls of the upper and lower ends of the cyclone assembly 63, and a limit ring 652 is welded and fixed thereto, and a limit groove matched with the limit ring 652 is opened in the middle of the limit block 622, and the limit block 622 is designed for the rotation of the rotating column 65.

[0030] Further, such as Figure 8 As shown, a worm gear 651 is welded and fixed to the bottom end of the rotating column 65, and an adjusting rod 66 is rotatably connected to the bottom end of the rotating column 65. A worm 661 matched with the worm gear 651 is welded and fixed to one end of the adjusting rod 66 close to the rotating column 65, and a second knob handle 662 is welded and fixed to the other end of the adjusting rod 66 after extending out of the air regulating box 5. The second knob handle 662 facilitates the rotation of the adjusting rod 66, and the rotation of the adjusting rod 66 drives the rotating column 65 to rotate through the worm gear 661 and the worm gear 651.

[0031] Specifically, Fig. 9 As shown, a plurality of straight grooves 6311 are provided on the inner wall of the lower cylinder 631, and a plurality of spiral grooves 6321 are provided on the inner wall of the upper cylinder 632. The top of the straight groove 6311 is connected to the bottom of the spiral groove 6321. The spiral blade 633 slides along the straight groove 6311 into the spiral groove 6321, so that the blade is deformed into a spiral shape. A first external thread 653 is provided on the outer wall of the rotating column 65 located in the inner part of the upper cylinder 632. A second threaded hole 6341 matched with the first external thread 653 is provided in the middle part of the first nut 634. The rotating column 65 rotates to drive the first nut 634 to move upward, so that the spiral blade 633 enters the spiral groove 6321 from the straight groove 6311. The number of edges of the first nut 634, the number of connecting rods 635, the number of spiral blades 633, the number of straight grooves 6311 and the number of spiral grooves 6321 are all equal and their positions correspond one to one.

[0032] It is worth noting that if Fig.10 As shown, the outer side wall of the rotating column 65 located in the inner part of the air outlet regulating component 64 is provided with a second external thread 654, and the middle part of the second nut 643 is provided with a third threaded hole 6431 matched with the second external thread 654. The rotating column 65 rotates to drive the second nut 643 to move downward, and the angle between the second support rod 642 and the horizontal plane is increased, so that the arc blades 641 are closed and the size of the air outlet is adjusted; connecting blades 644 are welded and fixed between each of the arc blades 641, and the number of edges of the second nut 643, the number of the second support rod 642, the number of the arc blades 641 and the number of the connecting blades 644 are equal and the positions correspond one to one.

[0033] Further, such as Fig.10 As shown, a third hinge seat 6411 is welded and fixed to the inner wall of the arc-shaped blade 641, and a fourth hinge seat 6432 is welded and fixed to each side wall of the second nut 643. The third hinge seat 6411 and the fourth hinge seat 6432 are respectively hinged to the two ends of the second support rod 642; a hinge protrusion 6412 is welded and fixed at the center of the bottom end of the arc-shaped blade 641, and a fifth hinge seat 623 matched with the hinge protrusion 6412 is welded and fixed to the top end of the fixed cylinder 62 on the upper side, and the arc-shaped blade 641 is hinged to the fixed cylinder 62 through the hinge protrusion 6412 and the fifth hinge seat 623.

[0034] The waste incinerator grate graded air distribution process of the present invention comprises the following steps: S1. First, start the suction machine 2 to extract the air in the garbage storage room through the air extraction port 1, and then start the air heater 3 to heat the extracted air; S2, the heated air enters the air distribution box 41, and the threaded rod 422 is rotated by the first knob handle 4221, so that the slider 424 slides along the threaded rod 422 and the slide rod 423, and the angle between the first support rod 425 and the horizontal plane is adjusted, so that the diverter plate 421 is tilted, and the ratio of air entering the drying grate 7, the combustion grate 8 and the burnout grate 9 is adjusted; S3, then the adjusting rod 66 is rotated by the second knob handle 662, and the rotating column 65 is driven to rotate under the action of the worm 661 and the worm wheel 651; S4, the rotating column 65 rotates to drive the first nut 634 to move upward, so that the spiral blade 633 enters the spiral groove 6321 from the straight groove 6311, so that when the air passes through the upper cylinder 632, a spiral airflow is generated; S5. At the same time, the rotating column 65 rotates to drive the second nut 643 to move downward, and the angle between the second support rod 642 and the horizontal plane is increased, so that the arc blades 641 are closed, and the size of the air outlet is adjusted to increase the wind pressure and blow toward the drying grate 7, the combustion grate 8 and the burnout grate 9.

[0035] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste incinerator grate graded air distribution system, comprising an air intake machine (2) and an air heater (3) connected to a waste storage chamber, characterized in that: It also includes an air distribution device (4), three air regulating boxes (5) connected to the air distribution device (4) via branch pipes, and an air regulating device (6) installed in the air regulating boxes (5), wherein a drying grate (7), a combustion grate (8), and a burnout grate (9) are respectively installed above the three air regulating boxes (5); The air distribution device (4) comprises an air distribution box (41) and two air distribution components (42) installed at the top of the air distribution box (41) for adjusting the ratio of the air volume entering the three air adjustment boxes (5); the air distribution component (42) comprises a flow divider plate (421) hinged to the top of the air distribution box (41); the ventilation volume is adjusted by changing the rotation angle of the two flow dividers (421) in the air distribution box (41); The air regulating device (6) comprises a bottom cylinder (61), a cyclone assembly (63) and an air outlet regulating assembly (64) which are arranged in sequence from bottom to top; the upper and lower ends of the cyclone assembly (63) are both welded with a fixed cylinder (62); the cyclone assembly (63) comprises a lower cylinder (631), an upper cylinder (632), a plurality of spiral blades (633) slidably connected to the lower cylinder (631) and the upper cylinder (632), and a first nut (634) welded to the plurality of spiral blades (633) via a plurality of connecting rods (635); the air outlet regulating assembly (64) comprises a plurality of arc-shaped blades (641) hinged to the end of the upper fixed cylinder (62) and a second nut (643) hinged to the plurality of arc-shaped blades (641) via a plurality of second supporting rods (642); a rotating column (65) threadedly connected to the first nut (634) and the second nut (643) is rotatably connected to the middle of the two fixed cylinders (62).

2. The waste incinerator grate graded air distribution system according to claim 1, characterized in that: The air distribution assembly (42) further comprises a threaded rod (422) and a sliding rod (423) rotatably connected to both sides of the top end of the air distribution box (41), a sliding block (424) disposed on the threaded rod (422) and the sliding block (423), and a first support rod (425) having two ends hingedly connected to the sliding block (424) and the side wall of the diverter plate (421).

3. The waste incinerator grate graded air distribution system according to claim 2, characterized in that: The suction machine (2) is connected to an air extraction port (1) arranged in the garbage storage room through a pipeline; three air distribution ports (411) are arranged side by side at the top of the air distribution box (41); the flow divider plate (421) is hinged between two air distribution ports (411); and the end of the threaded rod (422) extends out of the side wall of the air distribution box (41) and is welded and fixed with a first knob handle (4221).

4. The waste incinerator grate graded air distribution system according to claim 3, characterized in that: A first threaded hole (4241) matching the threaded rod (422) is provided in the middle of the slider (424) on the threaded rod (422), a through hole (4242) matching the size of the slider (423) is provided in the middle of the slider (424) on the slide rod (423), a first hinge seat (4211) is welded and fixed to the side wall of the diverter plate (421), and a second hinge seat (4243) is welded and fixed to the bottom end of the slider (424).

5. The waste incinerator grate graded air distribution system according to claim 4, characterized in that: The inner wall of the lower cylinder (631) is provided with a plurality of straight grooves (6311), and the inner wall of the upper cylinder (632) is provided with a plurality of spiral grooves (6321); the top of the straight groove (6311) is connected to the bottom of the spiral groove (6321); the outer wall of the rotating column (65) located inside the upper cylinder (632) is provided with a first external thread (653); a second threaded hole (6341) matched with the first external thread (653) is provided in the middle of the first nut (634); the number of sides of the first nut (634), the number of the connecting rods (635), the number of the spiral blades (633), the number of the straight grooves (6311) and the number of the spiral grooves (6321) are all equal and their positions correspond one to one.

6. The waste incinerator grate graded air distribution system according to claim 5, characterized in that: A limit block (622) is provided in the middle of the fixed cylinder (62), and a plurality of fixed rods (621) are welded and fixed to the side wall of the limit block (622) in a divergent manner, and the ends of the fixed rods (621) extend out of the fixed cylinder (62) and are welded and fixed to the inner wall of the air regulating box (5). The rotating column (65) is located on the outer side walls of the upper and lower ends of the cyclone assembly (63) and is welded and fixed to a limit ring (652), and a limit groove matched with the limit ring (652) is opened in the middle of the limit block (622).

7. The waste incinerator grate graded air distribution system according to claim 6, characterized in that: The outer wall of the rotating column (65) located inside the air outlet adjustment component (64) is provided with a second external thread (654); a third threaded hole (6431) matched with the second external thread (654) is opened in the middle of the second nut (643); connecting blades (644) are welded and fixed between each of the arc-shaped blades (641); the number of sides of the second nut (643), the number of the second support rods (642), the number of the arc-shaped blades (641), and the number of the connecting blades (644) are equal and their positions correspond one to one.

8. The waste incinerator grate graded air distribution system according to claim 7, characterized in that: A third hinge seat (6411) is welded and fixed to the inner side wall of the arc-shaped blade (641), a fourth hinge seat (6432) is welded and fixed to each side wall of the second nut (643), a hinge protrusion (6412) is welded and fixed at the center of the bottom end of the arc-shaped blade (641), and a fifth hinge seat (623) adapted to the hinge protrusion (6412) is welded and fixed to the top end of the fixing cylinder (62) located on the upper side.

9. The waste incinerator grate graded air distribution system according to claim 8, characterized in that: A worm gear (651) is welded and fixed to the bottom end of the rotating column (65), and an adjusting rod (66) is rotatably connected to the bottom end of the rotating column (65); a worm (661) matching the worm gear (651) is welded and fixed to one end of the adjusting rod (66) close to the rotating column (65); and a second knob handle (662) is welded and fixed to the other end of the adjusting rod (66) after extending out of the air regulating box (5).

10. A waste incinerator grate graded air distribution process, using the waste incinerator grate graded air distribution system according to claim 9, characterized in that: The following steps are involved: S1. First, start the suction machine (2) to extract air from the garbage storage room through the air extraction port (1), and then start the air heater (3) to heat the extracted air; S2, the heated air enters the air distribution box (41), and the threaded rod (422) is rotated by the first knob handle (4221), so that the slider (424) slides along the threaded rod (422) and the slide rod (423), and the angle between the first support rod (425) and the horizontal plane is adjusted, so that the diverter plate (421) is tilted, and the ratio of air entering the drying grate (7), the combustion grate (8) and the burnout grate (9) is adjusted; S3, then the adjusting rod (66) is rotated by the second knob handle (662), and the rotating column (65) is driven to rotate under the action of the worm (661) and the worm wheel (651); S4, the rotating column (65) rotates to drive the first nut (634) to move upward, so that the spiral blade (633) enters the spiral groove (6321) from the straight groove (6311), so that when the air passes through the upper cylinder (632), a spiral airflow is generated; S5. At the same time, the rotating column (65) rotates to drive the second nut (643) to move downward, and the angle between the second support rod (642) and the horizontal plane is adjusted to increase, so that the arc-shaped blades (641) are closed, and the size of the air outlet is adjusted to increase the wind pressure and blow it toward the drying grate (7), the combustion grate (8) and the burnout grate (9).

Images