Recycling device and method for household garbage incineration slag

Abstract

The invention relates to the technical field of incineration slag recycling, in particular to a household garbage incineration slag recycling device and method.The household garbage incineration slag recycling device comprises an equipment frame and a mixing cutting cylinder, a discharging structure is installed at the upper end of the mixing cutting cylinder, and the discharging structure and the equipment frame are fixed; the outer surface of the mixing and cutting barrel is sleeved with a multi-stage sorting material distributing mechanism capable of rotating through power, the discharging structure supplies materials into the material distributing mechanism, a plurality of through hole discs are installed on the inner side of the mixing and cutting barrel, and vertically-through material holes are formed in the end faces of the through hole discs. Screened slag can pass through the corresponding material passing grooves through the material distributing mechanism, the slag with the corresponding particle size is added into the space on the upper side of the corresponding through hole disc, the slag can be stirred and mixed in the cutting process of the mixed cutting tool rest in the rotating process, and the cut slag falls into the space on the upper side of the through hole disc of the next layer from material holes formed in the through hole disc; and the furnace slag with different sizes is crushed to a corresponding degree.

Description

Technical Field

[0001] The present invention relates to the technical field of recycling incineration slag, and in particular to a device and method for recycling domestic waste incineration slag. Background Art

[0002] The products of municipal solid waste incineration include five components: the residue on the grate, ash falling through the grate gaps, boiler ash, slag, and ash collected by the flue gas purification system. The mixture of the residue on the grate, ash falling through the grate gaps, and boiler ash is collectively referred to as municipal solid waste incineration slag. This slag primarily consists of non-combustible inorganic matter, combustible ash, unburned carbon, additives, and most of their reaction products.

[0003] Chinese patent CN112957973A discloses a device and method for recycling slag aggregate from incineration of domestic waste. The slag enters the feeding channel of the feed hopper through the feed plate and enters the gap between the spiral drum and the feed hopper. The drive motor drives the spiral drum to rotate and grinds the slag. At the same time, the electromagnetic heater heats the heat conduction plate, thereby heating the side wall of the feed hopper. The slag is separated after being heated and transported to the mixing chamber of the machine body under the drive of the spiral drum. In this way, the slag is spirally crushed and separated during the processing, thereby processing a relatively large volume of slag. Small mixed aggregates are then filtered, thereby avoiding clogging of the filter screen during slag filtering. The above-mentioned related technologies have the following defects: the slag formed after the incineration of domestic waste is of different sizes. In the existing technology, slags of different sizes are poured into the recovery device at one time for mixed crushing during slag mixing and crushing. The degree of crushing required for larger pieces of slag is different from that of smaller pieces of slag. When slags of different sizes are crushed together, it is easy to cause the originally smaller particles of slag to be crushed again, which is inconvenient to reuse later. The larger particles of slag are easy to be incompletely crushed. Therefore, a recycling device and method for domestic waste incineration slag are proposed. Summary of the Invention

[0004] In order to crush slags of different sizes separately, the present invention provides a device and method for recycling slags from domestic waste incineration.

[0005] The present invention provides a recycling and utilization device for domestic waste incineration slag, which adopts the following technical solution: it includes an equipment frame and a mixing and cutting cylinder, a feeding structure is installed on the upper end of the mixing and cutting cylinder, the feeding structure is fixed to the equipment frame, and a multi-stage sorting dividing mechanism that can be rotated by power is sleeved on the outer surface of the mixing and cutting cylinder. The feeding structure feeds material into the dividing mechanism, and a connecting shaft that can be rotated by power is installed at the axis of the mixing and cutting cylinder.

[0006] A plurality of perforated disks are installed on the inner side of the mixing and cutting cylinder, and material holes that pass through the upper and lower parts are provided on the end faces of the perforated disks. The inner diameters of the material holes provided on the end faces of the perforated disks distributed from top to bottom gradually decrease. A material trough is provided on the circumferential surface of the mixing and cutting cylinder on the adjacent upper side of each perforated disk. The material distribution mechanism distributes the added slag in layers with gradually decreasing particles from top to bottom. The material distribution mechanism adds slag to the upper side of each perforated disk through the material trough, and a mixing and cutting tool holder is installed on the outer surface of the connecting shaft on the upper side of each perforated disk.

[0007] Optionally, the material dividing mechanism includes a vertical cylinder and a powered rotatable cover cylinder, the mixing and cutting cylinder is rotatably inserted into the inner side of the cover cylinder, the vertical cylinder is located outside the mixing and cutting cylinder, the cover cylinder is shaped as a cylindrical structure with a notch on the circumferential surface, and the vertical cylinder is fixedly installed in the notch-shaped structure of the cover cylinder.

[0008] A material separation plate is fixedly installed inside the vertical cylinder and at the same horizontal plane of each perforated disk. The material separation plate has separation holes that pass through from top to bottom. The inner diameter of the separation holes opened on the surface of the material separation plate is equal to the inner diameter of the material holes opened on the perforated disk at the same horizontal plane.

[0009] The upper end of the vertical cylinder is communicated with the blanking structure.

[0010] Optionally, the unloading structure includes a storage barrel and a unloading drum, the unloading drum is rotatably plugged into the lower end of the storage barrel, the unloading drum is coaxially installed with the axis of the mixing and cutting drum, and the lower end of the unloading drum is connected to the upper end of the vertical barrel.

[0011] Optionally, an air box is installed on the side of the vertical cylinder away from the mixing and cutting cylinder, and the connection between the air box and the vertical cylinder is in the shape of a through hole.

[0012] The upper end of the air box is connected to a ventilation riser, and a ring plate A is fixedly sleeved on the upper end of the ventilation riser. The ring plate A is coaxially arranged with the mixing and cutting cylinder. The upper surface of the ring plate A is in sealing and sliding contact with a notched air supply ring A, and the notched air supply ring A is fixed to the equipment frame.

[0013] Optionally, the coupling is configured as a cavity-like structure with an open upper end, and one end of the coupling is located inside the mixing and cutting cylinder and is air-permeable.

[0014] The upper end of the connecting shaft is rotatably connected with a ventilation elbow, and the other end of the ventilation elbow is fixedly sleeved with a ring plate B. The outer ring side of the ring plate B is sealed and rotatably sleeved with a notch air supply ring B, which is installed on the upper surface of the mixing and cutting cylinder.

[0015] Optionally, an outer ring jet frame is provided inside the mixing and cutting cylinder and on the upper side of each perforated disk. The lower end of the outer ring jet frame is a plurality of rod-shaped structures, and the inner ring surface of the upper end of the outer ring jet frame is fixed to the connecting shaft.

[0016] The rod-shaped structure of the outer ring jet frame is distributed in an air-permeable manner near the connecting shaft. A circular ring is coaxially inserted into the outer ring surface of the upper end of the outer ring jet frame. A horizontal tube is fixedly passed through the outer ring surface of the circular ring. One end of the horizontal tube is connected to the interior of the outer ring jet frame, and the other end of the horizontal tube passes through the inner wall of the mixing and cutting cylinder. The cover cylinder is connected to each horizontal tube and is provided with an annular cavity. The outer surface of the cover cylinder is installed with a circular tube that connects each annular cavity structure of the cover cylinder.

[0017] The air box is connected to a square tube, the other end of the square tube passes through the outer surface of the vertical tube, one end of the square tube is located inside the vertical tube and is fixed to the cover tube, and the square tube is connected to the annular cavity structure of the cover tube.

[0018] Optionally, a bevel disk is fixedly inserted between every two adjacent perforated disks on the inner side of the mixing and cutting cylinder, and the outer ring jet frame is located on the lower side of the bevel disk between the same two adjacent perforated disks.

[0019] The mixing and cutting cylinder is provided with a return trough between each inclined disk and the adjacent upper perforated disk. The upper surface of the inclined disk is inclined. The inclined disk is located at one end of the return trough as the lower end. The return trough and the through trough are respectively located on both sides of the connecting shaft axis.

[0020] Optionally, the upper surface of the dividing plate is inclined, and the end of the dividing plate close to the mixing and cutting cylinder is the lower end.

[0021] Optionally, the notch air supply ring B is coaxially arranged with the notch air supply ring A, the notch arc angle of the notch air supply ring A is the same as the circular arc angle of the notch air supply ring B, the notch air supply ring B is located at the notch of the notch air supply ring A, and the notch of the notch air supply ring A is located on the upper side of the return trough.

[0022] A method for using a device for recycling slag from domestic waste incineration furnaces comprises the following steps: S1. The slag raw materials to be mixed and cut are placed in the feeding structure, and the feeding structure is added to the vertical cylinder slag; S2. The slag in the vertical cylinder is added to the multi-layered distribution plate surface through the openings for screening. The slag in the vertical cylinder is gradually reduced in size from top to bottom and distributed on the upper side of each distribution plate; S3. The cover drives the vertical cylinder and the internal slag to rotate. When the vertical cylinder is connected to the chute, the vertical cylinder adds slag of different particle sizes to the upper side of the corresponding height perforated plate through the chute at different heights. S4. When the slag enters the upper side of the perforated plate distributed from top to bottom, the slag particles decrease in size from top to bottom; S5. The airflow from the airbox assists the slag in the vertical cylinder to pass through the chute and enter the mixing and cutting cylinder. Simultaneously, the airflow from the outer ring jet rack assists the slag in moving toward the axis of the mixing and cutting cylinder. The airflow drives the slag to mix and move within the mixing and cutting cylinder. S6. When the shaft drives the mixed cutting tool holder to rotate, the moving slag is cut. At the same time, the airflow and the rotation of the mixed cutting tool holder drive the slag to mix and move, so that the slag with smaller particles can fall down from the material holes of the perforated disk to the next layer of cutting space in time.

[0023] In summary, the present invention has the following beneficial technical effects: The present invention sets components such as a material distribution mechanism, a perforated plate, a material hole and a mixing and cutting tool holder. The material is added into the material distribution mechanism by the unloading structure. The material distribution mechanism first screens the slag added inside into layers. Then, when the material distribution mechanism rotates to be connected to the material trough, the material distribution mechanism passes the screened slag through the corresponding material trough, and adds the slag of corresponding particle size into the upper space of the corresponding perforated plate. The connecting shaft drives the mixing and cutting tool holder to rotate and cut the contacted slag. At the same time, the mixing and cutting tool holder stirs the slag and mixes the slag during cutting, and changes the position of the slag. The cut slag falls from the material hole opened in the perforated plate to the space on the upper side of the next layer of perforated plate, so that slag of different sizes is crushed to a corresponding degree.

[0024] The present invention provides components such as an air box and an outer ring jet rack. When the cover tube rotates, the ventilation riser and the ring plate A are driven to rotate on the bottom surface of the notched air supply ring A. When the ventilation riser is connected to the notched air supply ring A, the notched air supply ring A inflates the air into the air box and the outer ring jet rack, causing the air box and the outer ring jet rack to spray. The airflow ejected from the outer ring jet rack assists the slag in the mixing and cutting tube to have a tendency to approach the connecting shaft. The airflow mixes with the slag to increase the gap between the slags, making it easier for the mixed cutting tool holder to crush the slag. At the same time, the airflow stirs the slag mixture, so that the slag can fully contact the mixed cutting tool holder, constantly changing the position of the slag, and assisting the slag after cutting to be discharged downward from the material hole in time.

[0025] The present invention is provided with components such as a ventilation elbow, a notched air supply ring B, a bevel disk and a return trough. When the vertical cylinder and the return trough are connected, the upper end of the ventilation vertical pipe is disconnected from the notched air supply ring A, and at the same time, the upper end of the ventilation elbow is connected to the notched air supply ring B. The notched air supply ring B inflates air into the connecting shaft through the ventilation elbow. The connecting shaft is located at one end inside the mixing and cutting cylinder and sprays air outward from the axis of the mixing and cutting cylinder, assisting the slag on the upper side of the through-hole disk in the mixing and cutting cylinder to fall onto the bevel disk, and then the airflow assists the slag on the upper side of the bevel disk to move from the return trough to the vertical cylinder, and the material holes of different inner diameters of multiple dividing plates in the vertical cylinder are layered and separated again. When the vertical cylinder is connected to the feed trough again, the layered slag is again discharged to the upper sides of different through-hole disks to ensure that the smaller particles of slag produced by crushing are not over-crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention; Figure 2This is a schematic diagram of the structure of the connection between the storage drum and the discharge drum in an embodiment of the present invention; Figure 3 is a schematic top view of part of the structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure inside the mixing and cutting cylinder in an embodiment of the present invention; Figure 5 2 is a schematic structural diagram of the connection between the vent elbow and the ring plate B in an embodiment of the present invention; Figure 6 2. It is a schematic structural diagram of the connection between the outer ring jet frame and the mixing and cutting cylinder in an embodiment of the present invention; Figure 7 It is a schematic front view of part of the structure in an embodiment of the present invention; Figure 8 Schematic diagram of the structure distribution of the ramp disk and the outer ring jet frame in an embodiment of the present invention; Figure 9 It is a structural schematic diagram of the connection between the cover cylinder and the circular tube in an embodiment of the present invention.

[0027] Figure numerals: 1. Equipment frame; 2. Mixing and cutting cylinder; 3. Material discharge structure; 31. Material storage cylinder; 32. Material discharge rotary cylinder; 4. Material distribution mechanism; 41. Vertical cylinder; 411. Air box; 412. Ventilation vertical pipe; 413. Ring plate A; 414. Notched air supply ring A; 415. Outer ring jet frame; 416. Circular ring; 417. Horizontal pipe; 418. Circular pipe; 419. Square pipe; 42. Cover cylinder; 43. Material distribution plate; 44. Distribution hole; 45. Inclined disk; 46. Return trough; 5. Connecting shaft; 51. Ventilation elbow; 52. Ring plate B; 53. Notched air supply ring B; 6. Perforated disk; 7. Material hole; 8. Material trough; 9. Mixing and cutting tool holder. DETAILED DESCRIPTION

[0028] The following is combined with Figures 1-9 The present invention is described in further detail.

[0029] The embodiment of the present invention discloses a device for recycling slag from domestic waste incineration. Figures 1-9 As shown, it includes an equipment frame 1 and a mixing and cutting cylinder 2 , a blanking structure 3 is installed on the upper end of the mixing and cutting cylinder 2 , and the blanking structure 3 is fixed to the equipment frame 1 .

[0030] The outer surface of the mixing and cutting cylinder 2 is sleeved with a multi-stage sorting dividing mechanism 4 that can be rotated by power. The dividing mechanism 4 includes a vertical cylinder 41 and a cover cylinder 42 that can be rotated by power. The mixing and cutting cylinder 2 is rotatably inserted into the inner side of the cover cylinder 42. The vertical cylinder 41 is located on the outer side of the mixing and cutting cylinder 2. The cover cylinder 42 is in the shape of a cylindrical structure with a notch on the circumferential surface. The vertical cylinder 41 is fixedly installed in the notch-shaped structure of the cover cylinder 42. The vertical cylinder 41 is in close contact with the mixing and cutting cylinder 2. An inner gear ring is installed at the upper end of the cover cylinder 42. A motor is installed at the upper end of the mixing and cutting cylinder 2. A gear meshing with the inner gear ring is installed at the output end of the motor. The meshing of the gear and the inner gear ring can drive the cover cylinder 42 to rotate.

[0031] An air box 411 is installed on a side of the vertical cylinder 41 away from the mixing and cutting cylinder 2 , and the connection between the air box 411 and the vertical cylinder 41 is in the shape of a through hole.

[0032] The upper end of the air box 411 is connected and installed with a ventilation vertical pipe 412, and the upper end of the ventilation vertical pipe 412 is fixedly sleeved with a ring plate A413, and the ring plate A413 is coaxially arranged with the mixing and cutting cylinder 2. The upper surface of the ring plate A413 is in sealing and sliding contact with a notched air supply ring A414, and the notched air supply ring A414 is fixed to the equipment frame 1. The air box 411 rotates synchronously with the cover cylinder 42 through the vertical cylinder 41, driving the ring plate A413 to rotate relative to the notched air supply ring A414. The notched air supply ring A414 is connected and installed with an air pump for inflating the interior. When the ventilation vertical pipe 412 is connected to the notched air supply ring A414, air can be inflated into the inside of the air box 411.

[0033] The unloading structure 3 feeds material into the dividing mechanism 4. The upper end of the vertical cylinder 41 is connected to the unloading structure 3. A connecting shaft 5 that can be rotated by power is installed at the axis of the mixing and cutting cylinder 2. The mixing and cutting cylinder 2 is equipped with a motor. The connecting shaft 5 and the output end of the motor are equipped with gears that mesh with each other, so that the motor can drive the connecting shaft 5 to rotate through gear transmission.

[0034] The unloading structure 3 includes a storage barrel 31 and a unloading drum 32. The unloading drum 32 is rotatably inserted into the lower end of the storage barrel 31. The unloading drum 32 is coaxially installed with the axis of the mixing and cutting drum 2. The lower end of the unloading drum 32 is connected to the upper end of the vertical cylinder 41. An intermittently rotating spiral feeding plate is installed in the unloading drum 32, and an intermittently rotating motor is installed at the outer end of the spiral feeding plate. The intermittent rotation of the spiral feeding plate can intermittently add slag into the vertical cylinder 41.

[0035] A plurality of perforated disks 6 are installed on the inner side of the mixing and cutting cylinder 2. The end faces of the perforated disks 6 are provided with material holes 7 that pass through from top to bottom. The inner diameters of the material holes 7 opened on the end faces of the perforated disks 6 distributed from top to bottom gradually decrease. A dividing plate 43 is fixedly installed inside the vertical cylinder 41 and located at the same horizontal plane of each perforated disk 6. The dividing plate 43 is provided with dividing holes 44 that pass through from top to bottom. The inner diameters of the dividing holes 44 opened on the surface of the dividing plate 43 are equal to the inner diameters of the material holes 7 opened on the perforated disks 6 on the same horizontal plane. The air box 411 inflates the vertical cylinder 41 through the through-holes of the vertical cylinder 41. The airflow can move the slag inside, stir the slag and the airflow to mix, so that the smaller slag can gradually move downward from the corresponding dividing holes 44, so that the slag in different size ranges is layered on the upper side of different dividing plates 43.

[0036] The circumferential surface of the mixing and cutting cylinder 2 is provided with a material trough 8 on the adjacent upper side of each perforated disk 6. The upper surface of the dividing plate 43 is inclined, and the dividing plate 43 is close to the mixing and cutting cylinder 2 as the lower end. When the vertical cylinder 41 is connected with the material trough 8, the slag on the upper side of the dividing plate 43 with an inclined upper surface has a tendency to slide into the material trough 8. At the same time, the air flow blown into the vertical cylinder 41 by the air box 411 has a tendency to assist in driving the slag from the material trough 8 into the mixing and cutting cylinder 2. The dividing mechanism 4 divides the added slag into layers with gradually smaller particles from top to bottom, and the dividing mechanism 4 adds slag to the upper side of each perforated disk 6 through the material trough 8.

[0037] A mixing cutting tool holder 9 is installed on the outer surface of the connecting shaft 5 and on the upper side of each through-hole disk 6 .

[0038] The connecting shaft 5 is configured as a cavity-like structure with an open upper end. One end of the connecting shaft 5 located inside the mixing and cutting cylinder 2 is air-permeable.

[0039] An outer ring jet frame 415 is provided inside the mixing and cutting cylinder 2 and on the upper side of each perforated disk 6 . The lower end of the outer ring jet frame 415 is a plurality of rod-shaped structures, and the inner ring surface of the upper end of the outer ring jet frame 415 is fixed to the connecting shaft 5 .

[0040] A bevel disk 45 is fixedly inserted between each two adjacent perforated disks 6 on the inner side of the mixing and cutting cylinder 2, and the outer ring jet rack 415 is located on the lower side of the bevel disk 45 between the same two adjacent perforated disks 6. The slag falling from the material hole 7 of the perforated disk 6 falls to the upper side of the bevel disk 45, so that the slag will not directly contact the mixing and cutting tool holder 9 on the lower side.

[0041] The mixing and cutting cylinder 2 is provided with a return trough 46 between each inclined disk 45 and the adjacent upper perforated disk 6. The upper surface of the inclined disk 45 is inclined, and the inclined disk 45 is located at one end of the return trough 46 as the lower end, so that the slag falling to the upper side of the inclined disk 45 has a tendency to slide toward the return trough 46. The return trough 46 and the through trough 8 are respectively located on both sides of the axis of the connecting shaft 5. When the vertical cylinder 41 is connected to the return trough 46, the slag on the upper side of the inclined disk 45 is moved back to the vertical cylinder 41 through the return trough 46, and then the vertical cylinder 41 layers the crushed slag again to ensure that the smaller particles of slag produced after crushing will no longer be excessively cut and crushed.

[0042] A ventilation elbow 51 is rotatably connected to the upper end of the connecting shaft 5, and a ring plate B52 is fixedly sleeved on the other end of the ventilation elbow 51. A notched air supply ring B53 is rotatably sleeved on the outer ring side of the ring plate B52, and the notched air supply ring B53 is installed on the upper surface of the mixing and cutting cylinder 2.

[0043] The notch air supply ring B53 is coaxially arranged with the notch air supply ring A414, and the arc angle of the notch of the notch air supply ring A414 is the arc angle of the notch of the notch air supply ring B53. The notch air supply ring B53 is located at the notch of the notch air supply ring A414, and the notch of the notch air supply ring A414 is located on the upper side of the return trough 46. When the vertical cylinder 41 is connected with the return trough 46, the notch air supply ring B53 is connected with the ventilation elbow 51, so that the connecting shaft 5 is inflated into the mixing and cutting cylinder 2, and the ejected air flow drives the crushed slag to fall from the material hole 7 on the lower side onto the inclined disk 45 to prevent the slag from being blocked on the upper side of the material hole 7, and then the air flow assists in driving the slag from the return trough 46 into the vertical cylinder 41.

[0044] The rod-shaped structure of the outer ring jet frame 415 is distributed in a breathable shape near the side of the connecting shaft 5. The outer ring surface of the upper end of the outer ring jet frame 415 is coaxially rotated and plugged with a circular ring 416. The outer ring surface of the circular ring 416 is fixed with a horizontal tube 417. One end of the horizontal tube 417 is connected to the interior of the outer ring jet frame 415, and the other end of the horizontal tube 417 penetrates the inner wall of the mixing and cutting cylinder 2. The cover cylinder 42 is located at each horizontal tube 417 and is connected to an annular cavity. The air box 411 is connected and installed with a square tube 419. The other end of the square tube 419 penetrates the outer surface of the vertical cylinder 41. The square tube 419 is located in the interior of the vertical cylinder 41 and is fixed to the cover cylinder 42. The square tube 419 is connected to the annular cavity structure of the cover cylinder 42, and the outer surface of the cover cylinder 42 is installed with a ring The circular tube 418 is connected to the cavity structure, and the air flow in the air box 411 is inflated into the annular cavity structure in the cover tube 42 through the square tube 419, and then inflated into the corresponding outer ring jet frame 415 through the horizontal tube 417. The breathable rod-shaped structure of the outer ring jet frame 415 sprays air toward the axis side of the connecting shaft 5. The ejected air flow drives the slag to move toward the axis side of the mixing and cutting cylinder 2. The air flow mixes with the slag to increase the gap between the slags, which is convenient for the mixing and cutting tool holder 9 to crush the slag. At the same time, the air flow stirs the slag mixture so that the slag can fully contact the mixing and cutting tool holder 9, constantly changing the position of the slag, and the slag after auxiliary cutting can be discharged downward from the material hole 7 in time. Then the slag that meets the conditions falls from the lowermost material hole 7 and the separation hole 44.

[0045] A method for using a device for recycling slag from domestic waste incineration furnaces comprises the following steps: S1. Place the slag raw materials to be mixed and cut into the material discharge structure 3 , and the material discharge structure 3 adds slag into the vertical cylinder 41 .

[0046] S2. The slag added to the vertical cylinder 41 is screened by the holes 44 opened on the surface of the multi-layered distribution plates 43, and the slag in the vertical cylinder 41 is gradually reduced in size from top to bottom and distributed on the upper side of each distribution plate 43 in sequence.

[0047] S3. The cover tube 42 drives the vertical tube 41 and the slag inside to rotate. When the vertical tube 41 is connected to the chute 8, the vertical tube 41 adds slag of different particle sizes to the upper side of the perforated plate 6 at the corresponding height through the chute 8 at different height positions.

[0048] S4. When the slag enters the upper side of the perforated plate 6 distributed from top to bottom, the slag particles decrease in size from top to bottom.

[0049] S5. The airflow ejected from the air box 411 assists the slag in the vertical cylinder 41 to enter the mixing and cutting cylinder 2 through the material trough 8. At the same time, the airflow ejected from the outer ring jet rack 415 assists the slag entering the mixing and cutting cylinder 2 to move toward the axis side of the mixing and cutting cylinder 2. When the airflow flows, it drives the slag to move and mix in the mixing and cutting cylinder 2.

[0050] S6. When the shaft 5 drives the mixing cutting tool holder 9 to rotate, the active slag is cut. At the same time, the airflow and the rotation of the mixing cutting tool holder 9 drive the active mixing of the slag, so that the slag with smaller particles can fall down from the material hole 7 of the perforated plate 6 to the next layer of cutting space in time.

[0051] The working principle is: the feeding structure 3 adds the material into the dividing mechanism 4, and the dividing mechanism 4 first screens the slag added to the inside in layers, and then when the dividing mechanism 4 rotates to connect with the feeding trough 8, the dividing mechanism 4 passes the screened slag through the corresponding feeding trough 8, and adds the slag of corresponding particle size to the upper space of the corresponding perforated disk 6. The connecting shaft 5 drives the mixing cutting tool holder 9 to rotate to cut the contacted slag. At the same time, the mixing cutting tool holder 9 will stir the slag and mix the slag during cutting, and change the position of the slag. The cut slag falls from the material hole 7 opened in the perforated disk 6 to the space on the upper side of the next layer of perforated disk 6, so that the slag of different sizes is crushed to the corresponding degree. Finally, the crushed slag is discharged from the lower end of the material hole 7 on the lower side.

[0052] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for recycling slag from domestic waste incineration, comprising an equipment frame (1) and a mixing and cutting cylinder (2), characterized in that: The upper end of the mixing and cutting cylinder (2) is provided with a material discharge structure (3), which is fixed to the equipment frame (1); the outer surface of the mixing and cutting cylinder (2) is sleeved with a multi-stage sorting material separation mechanism (4) that can be rotated by power; the material discharge structure (3) feeds material into the material separation mechanism (4); and a connecting shaft (5) that can be rotated by power is provided at the axis of the mixing and cutting cylinder (2); A plurality of perforated discs (6) are installed inside the mixing and cutting cylinder (2), and a material hole (7) is opened on the end surface of the perforated disc (6) and is passed through from top to bottom. The inner diameter of the material hole (7) opened on the end surface of the perforated disc (6) is gradually reduced. The circumferential surface of the mixing and cutting cylinder (2) is provided with a material trough (8) on the adjacent upper side of each perforated disc (6). The material distribution mechanism (4) distributes the added slag in layers with gradually decreasing particles from top to bottom. The material distribution mechanism (4) adds slag to the upper side of each perforated disc (6) through the material trough (8). The outer surface of the connecting shaft (5) is provided with a mixing and cutting tool holder (9) on the upper side of each perforated disc (6).

2. The device for recycling slag from domestic waste incineration according to claim 1, characterized in that: The material distribution mechanism (4) comprises a vertical cylinder (41) and a powered rotatable cover cylinder (42); the mixing and cutting cylinder (2) is rotatably plugged into the inner side of the cover cylinder (42); the vertical cylinder (41) is located outside the mixing and cutting cylinder (2); the cover cylinder (42) is in the shape of a cylindrical structure with a notch on its circumferential surface; the vertical cylinder (41) is fixedly mounted in the notch-shaped structure of the cover cylinder (42); A material distribution plate (43) is fixedly installed inside the vertical cylinder (41) and at the same horizontal plane as each perforated disk (6). The material distribution plate (43) is provided with a distribution hole (44) extending vertically therethrough. The inner diameter of the distribution hole (44) provided on the surface of the material distribution plate (43) is equal to the inner diameter of the material hole (7) provided on the perforated disk (6) at the same horizontal plane. The upper end of the vertical cylinder (41) is connected to the blanking structure (3).

3. The device for recycling slag from domestic waste incineration according to claim 2, characterized in that: The material discharge structure (3) comprises a material storage barrel (31) and a material discharge rotary barrel (32). The material discharge rotary barrel (32) is rotatably plugged into the lower end of the material storage barrel (31). The material discharge rotary barrel (32) is coaxially mounted with the axis of the mixing and cutting barrel (2). The lower end of the material discharge rotary barrel (32) is connected to the upper end of the vertical barrel (41).

4. The device for recycling slag from domestic waste incineration according to claim 2, characterized in that: An air box (411) is installed on one side of the vertical cylinder (41) away from the mixing and cutting cylinder (2), and the connection between the air box (411) and the vertical cylinder (41) is in the form of a through hole; The upper end of the air box (411) is connected to a ventilation vertical pipe (412), and a ring plate A (413) is fixedly sleeved on the upper end of the ventilation vertical pipe (412). The ring plate A (413) is coaxially arranged with the mixing and cutting cylinder (2). The upper surface of the ring plate A (413) is in sealing and sliding contact with a notched air supply ring A (414), and the notched air supply ring A (414) is fixed to the equipment frame (1).

5. The device for recycling slag from domestic waste incineration according to claim 4, characterized in that: The connecting shaft (5) is configured as a cavity-like structure with an open upper end, and one end of the connecting shaft (5) is located inside the mixing and cutting cylinder (2) and is air-permeable; The upper end of the connecting shaft (5) is rotatably connected to a vent elbow (51), the other end of the vent elbow (51) is fixedly sleeved with a ring plate B (52), the outer ring side of the ring plate B (52) is sealed and rotatably sleeved with a notched air supply ring B (53), and the notched air supply ring B (53) is mounted on the upper surface of the mixing and cutting cylinder (2).

6. The device for recycling slag from domestic waste incineration according to claim 5, characterized in that: An outer ring jet frame (415) is provided on the inner side of the mixing and cutting cylinder (2) and on the upper side of each perforated disk (6). The lower end of the outer ring jet frame (415) is a plurality of rod-shaped structures. The inner ring surface of the upper end of the outer ring jet frame (415) is fixed to the connecting shaft (5). The rod-shaped structure of the outer ring jet frame (415) is distributed in an air-permeable manner near the connecting shaft (5). The outer ring surface of the upper end of the outer ring jet frame (415) is coaxially rotated and plugged with a ring (416). The outer ring surface of the ring (416) is fixedly penetrated by a transverse tube (417). One end of the transverse tube (417) is connected to the interior of the outer ring jet frame (415). The other end of the transverse tube (417) penetrates the inner wall of the mixing and cutting cylinder (2). The cover cylinder (42) is connected to each transverse tube (417) and is provided with an annular cavity. The outer surface of the cover cylinder (42) is installed with a circular tube (418) that connects each annular cavity structure of the cover cylinder (42). The air box (411) is connected to a square tube (419) installed therein. The other end of the square tube (419) penetrates the outer surface of the vertical cylinder (41). One end of the square tube (419) is located inside the vertical cylinder (41) and is fixed to the cover cylinder (42). The square tube (419) is connected to the annular cavity structure of the cover cylinder (42).

7. The device for recycling slag from domestic waste incineration according to claim 6, characterized in that: A bevel disk (45) is fixedly inserted between each two adjacent perforated disks (6) on the inner side of the mixing and cutting cylinder (2), and an outer ring jet frame (415) is located on the lower side of the bevel disk (45) between the same two adjacent perforated disks (6); The mixing and cutting cylinder (2) is provided with a return trough (46) between each inclined disk (45) and the adjacent upper through-hole disk (6). The upper surface of the inclined disk (45) is inclined. The inclined disk (45) is located at one end of the return trough (46) as the lower end. The return trough (46) and the through-hole trough (8) are respectively located on both sides of the axis of the connecting shaft (5).

8. The device for recycling slag from domestic waste incineration according to claim 2, characterized in that: The upper surface of the material dividing plate (43) is arranged in an inclined manner, and the end of the material dividing plate (43) close to the mixing and cutting cylinder (2) is the lower end.

9. The device for recycling slag from domestic waste incineration according to claim 7, characterized in that: The notch air supply ring B (53) is coaxially arranged with the notch air supply ring A (414), the arc angle of the notch of the notch air supply ring A (414) is the same as the arc angle of the notch air supply ring B (53), the notch air supply ring B (53) is located at the notch of the notch air supply ring A (414), and the notch of the notch air supply ring A (414) is located on the upper side of the return trough (46).

10. The method for using the device for recycling domestic waste incineration slag according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The slag raw materials to be mixed and cut are placed in the feeding structure (3), and the feeding structure (3) adds the slag into the vertical cylinder (41); S2. The slag added to the vertical cylinder (41) is screened through the holes (44) provided on the surface of the multi-layered distribution plate (43), and the slag in the vertical cylinder (41) is gradually reduced in size from top to bottom and distributed on the upper side of each distribution plate (43); S3. The cover tube (42) drives the vertical tube (41) and the internal slag to rotate. When the vertical tube (41) is connected to the trough (8), the vertical tube (41) adds slag of different particle sizes to the upper side of the corresponding height perforated plate (6) through the trough (8) at different height positions; S4. When the slag enters the upper side of the perforated plate (6) distributed from top to bottom, the slag particles decrease in size from top to bottom; S5. The airflow ejected from the air box (411) assists the slag in the vertical cylinder (41) to enter the mixing and cutting cylinder (2) through the trough (8). At the same time, the airflow ejected from the outer ring jet frame (415) assists the slag in entering the mixing and cutting cylinder (2) to move toward the axis of the mixing and cutting cylinder (2). The airflow drives the slag to move and mix in the mixing and cutting cylinder (2). S6. When the connecting shaft (5) drives the mixing cutting blade (9) to rotate, the active slag is cut. At the same time, the air flow and the rotation of the mixing cutting blade (9) drive the active mixing of the slag, so that the slag particles can fall down from the material hole (7) of the perforated plate (6) to the next cutting space in time.

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