A spraying type aluminum ash denitration device and ash removal method

Abstract

The application discloses to the technical field of metal production waste chip treatment, in particular to a spraying type aluminum ash residue nitrogen removal device and ash removal method, including installation support, heat source distribution assembly and circulation control assembly, the middle section of the installation support is provided with a nitrogen removal treatment cylinder which rotates, the nitrogen removal treatment cylinder includes an outer shell layer and an inner lining layer, a heating cavity is clamped between the outer shell layer and the inner lining layer, a discharge port is formed in one side of the nitrogen removal treatment cylinder, the aluminum ash residue treatment of metal waste residue is carried out through the horizontal rotation treatment mode, in the aluminum ash residue treatment of the continuous production, the rapid feeding and dumping treatment can be realized, and meanwhile, under the cooperation of the heat source distribution assembly and the circulation control assembly, the environmental temperature during the aluminum ash residue hydrolysis treatment operation can be stably controlled, the temperature difference between the two ends during the aluminum ash residue treatment operation is avoided to be too large, and the efficiency and quality of the aluminum ash residue nitrogen removal treatment are improved.

Description

Technical Field

[0001] This invention relates to the field of metal production waste treatment technology, specifically to a spray-type aluminum ash denitrification device and ash removal method. Background Technology

[0002] Denitrification of aluminum ash slag refers to the process of removing or rendering harmless the nitrogen element (mainly in the form of aluminum nitride) contained in aluminum ash slag, in order to prevent the nitrogen element from releasing harmful substances and causing environmental pollution during subsequent processing or storage. Currently, denitrification of aluminum ash slag is mainly carried out by hydrolysis reaction.

[0003] The utility model patent CN216303959U discloses a device for the harmless treatment and recycling of aluminum ash slag, including a stirring assembly and a reaction vessel shell. The slag is fed into a mixing tank through an inlet for mixing. Simultaneously, a water pump and drive motor are activated via a switch assembly. The water pump draws water from a storage tank and sprays it through nozzles. The drive motor drives an eccentric wheel to rotate via a first rotating rod. Ball bearings cause a moving plate to slide on a fixed rod. The moving plate moves a connecting plate via a square rod, which in turn moves a connecting rod. The connecting rod then drives the stirring blades to mix the slag. After uniform mixing, the slag is transported to the reaction vessel through a connecting pipe. The reactor shell is driven by a motor that continuously moves and rotates the stirring blades, thus mixing the ingredients in the batching tank evenly and achieving a uniform mixing effect. When hydrolyzing aluminum ash slag, it accelerates the reaction time of the aluminum ash slag through spraying and stirring. In actual aluminum ash slag production, the reactor-type processing method is not conducive to continuous processing. At the same time, temperature control is required to achieve more efficient hydrolysis and denitrification in aluminum ash slag processing. However, existing aluminum ash slag processing equipment often has a large temperature difference between the heat source input end and the discharge end, which affects the efficient processing of aluminum ash slag. Summary of the Invention

[0004] The purpose of this invention is to provide a spray-type aluminum ash denitrification device and denitrification method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spray-type aluminum ash denitrification device and denitrification method, comprising:

[0006] The mounting bracket has a denitrification treatment cylinder rotatably mounted on its middle section. The denitrification treatment cylinder includes an outer shell layer and an inner lining layer. A heating chamber is sandwiched between the outer shell layer and the inner lining layer. A vent is opened on one side of the denitrification treatment cylinder. The mounting bracket is covered with a sealing cap by a horizontal pressing assembly located on the vent side. The horizontal pressing assembly includes a support base and several telescopic control cylinders.

[0007] A heat source distribution assembly, comprising several distribution pipes and several heat delivery pipes, wherein the distribution pipes are horizontally inserted into the heating chamber and the heat delivery pipes are horizontally inserted into one side of the sealing cap.

[0008] A circulation control component, comprising a control gas hood, a heat supply hood, and a collection hood, wherein the heat supply hood, the heating chamber, and the collection hood are connected in communication.

[0009] Preferably, four rotating control toothed rollers are horizontally arranged on the middle section of the mounting bracket via roller connecting ears, and two rotating toothed rings are provided on the outer periphery of the denitrification treatment cylinder. The two rotating toothed rings are respectively meshed with and connected to the four rotating control toothed rollers. Anti-detachment baffles are provided on the opposite sides of the two rotating control toothed rollers on the same side, and one side of the anti-detachment baffle is in contact with the side of the rotating toothed ring.

[0010] Preferably, the heating chamber is provided with several vertically symmetrical support fins, and a flow channel is provided between each pair of adjacent support fins. Some of the flow channels are provided with horizontally distributed connecting pipes through guide plates. A material inlet is provided at the center of one side of the denitrification treatment cylinder. Several metal connecting rods are provided on the side of the distributed connecting pipes near the material inlet. A U-shaped reflux block is provided on one side of each of the metal connecting rods. The two sides of the U-shaped reflux block are in contact with one side of each of the two support fins, and the center of each support fin is cut off.

[0011] Preferably, the denitrification treatment cylinder is provided with a matching sealing disc on the side away from the material inlet, and a conformal groove is opened on one side of the matching sealing disc. One side of the sealing cover is inserted into the conformal groove of the matching sealing disc, and a central support shaft is provided at the center of the side of the sealing cover away from the matching sealing disc.

[0012] Preferably, the heating cavity has a plurality of conical mating grooves in the conformal groove of the sealing disc, and the sealing cover has a transfer groove on the side near the conical mating groove. The heat supply connecting pipe is horizontally placed in the transfer groove, and one end of the heat supply connecting pipe passes through the sealing cover and the conical mating groove and is inserted into the heating cavity. The heat supply connecting pipes inserted into the heating cavity are respectively arranged corresponding to the distributed connecting pipes, and a conical sealing sleeve is fitted on the side of the heat supply connecting pipe that passes through the sealing cover.

[0013] Preferably, the heat supply connecting pipe is provided with a switching piston on one side of the connecting groove, and a diversion annular groove is provided on one side of the rotating gear ring. Several connecting grooves are respectively connected to the diversion annular groove and have diversion holes. The diameter of the diversion holes is smaller than the diameter of the switching piston. A return spring is sleeved on the side of the heat supply connecting pipe located in the connecting groove on the switching piston side. A connecting hole is provided on the side of the heat supply connecting pipe near the switching piston. The heating chamber is connected to the connecting groove through the heat supply connecting pipe and the connecting hole. A transfer annular groove is provided on the side of the sealing cover away from the diversion annular groove. A third connecting groove is provided between the transfer annular groove and several connecting grooves.

[0014] Preferably, both the control gas hood and the heat delivery hood are rotatably connected to the central support shaft via sealed bearings. A synchronous connecting block is inserted between the control gas hood and the heat delivery hood. Input annular grooves are opened on the inner circumference of both the control gas hood and the heat delivery hood. Several first connecting grooves and several second connecting grooves are opened in the central support shaft, which connects to the diversion annular groove and the transfer annular groove. The several first connecting grooves and several second connecting grooves are respectively connected to two input annular grooves. Input connectors are provided on the outer circumference of both the control gas hood and the heat delivery hood, which are connected to the input annular grooves.

[0015] Preferably, the mounting bracket has a support base on the side near the central support shaft. A spray pipe is horizontally fixed at the center of the support base. One side of the spray pipe passes through the sealing cover and the central support shaft through multiple sealing rings and is inserted into the denitrification treatment cylinder. The lower end of the spray pipe inside the denitrification treatment cylinder has several spray nozzles. One side of the control gas hood has a bonding plate, and one side of the bonding plate has several sliding balls. One side of each sliding ball contacts the side of the sealing cover. One side of the support base has several telescopic control cylinders horizontally, and one side of each telescopic control cylinder is connected to the side of the bonding plate. The heat supply hood has several guide rods horizontally on the side away from the control gas hood and close to the support base. The guide rods are movably inserted through the support base.

[0016] Preferably, a discharge annular groove is provided on one side of the material inlet, and the collection cover is sleeved on the discharge annular groove of the material inlet through a sealed bearing. A discharge annular groove is provided on the inner circumference side of the collection cover opposite to the discharge annular groove. A discharge connector is provided on the outer circumference side of the collection cover communicating with the discharge annular groove. Several circulating discharge pipes are provided in communication between the heating chamber and the discharge annular groove of the material inlet.

[0017] A method for removing ash using a spray-type aluminum ash denitrification device includes the following steps:

[0018] Step 1: Aluminum ash slag generated from metal processing is directly conveyed to the installation support station through the material inlet. Then, it is conveyed into the denitrification treatment cylinder from the material inlet. The installation support is equipped with a rotating control toothed roller to drive the denitrification treatment cylinder to rotate stably. During this process, the spray pipe sprays the aluminum ash slag that is continuously turning inside the denitrification treatment cylinder to achieve denitrification treatment of the aluminum ash slag. The mixture of aluminum ash slag and solution after full treatment is discharged from the sealing plate of the denitrification treatment cylinder for subsequent processing.

[0019] Step 2: Before the aluminum ash slag mixing reaction treatment, the telescopic control cylinder pushes the sealing cover to press against the denitrification treatment cylinder to achieve a reliable seal at the connection. When the denitrification treatment cylinder rotates, the sealing cover rotates along with it through the support of the denitrification treatment cylinder, the control gas hood and the heat supply hood.

[0020] Step 3: During the rotation of the sealing cap, the heating hood can send hot air into the transfer groove through the second connecting groove. When the hot air is sent in, the central support shaft is heated. At this time, the reaction solution transported by the spray pipe can be heated simultaneously. After the heated air enters the transfer groove, it enters the heating coupling pipe through the transfer hole, and then enters the heating chamber through the heating coupling pipe.

[0021] Step 4: The hot airflow entering the heating chamber heats the inner lining, improving the efficiency of the reaction between aluminum ash and solution in the denitrification treatment cylinder. Then, under the action of flow, the airflow enters the discharge annular groove from the circulation discharge pipe and finally exits from the discharge connector at the discharge annular groove of the collection hood, completing the hot airflow circulation.

[0022] Step 5: When the temperature difference between the side of the heating chamber away from the heat delivery pipe and the side closer to the heat delivery pipe is large, high-pressure airflow is input into the control hood. The high-pressure airflow enters the diversion annular groove from the first connecting groove. Then, the high-pressure airflow in the diversion annular groove pushes the heat delivery pipe to connect with the distribution pipe in the heating chamber. Under the guidance of the distribution pipe, part of the hot airflow delivered by the heat delivery pipe directly reaches the side of the heating chamber away from the heat delivery pipe, thus compensating for the temperature on the other side.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The aluminum ash slag is processed by a horizontal rotary method. In the treatment of aluminum ash slag generated in continuous production, it can achieve rapid feeding and dumping. At the same time, with the cooperation of heat source distribution components and circulation control components, the ambient temperature during the aluminum ash slag hydrolysis treatment can be stably controlled, avoiding excessive temperature difference at both ends of the aluminum ash slag treatment operation, and improving the efficiency and quality of aluminum ash slag denitrification treatment. Attached Figure Description

[0025] Figure 1 This is a first-view schematic diagram of the structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of part A;

[0027] Figure 3 This is a second-view schematic diagram of the structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the side section structure of the denitrification treatment cylinder of the present invention;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of part B;

[0030] Figure 6 For the present invention Figure 5Schematic diagram of part C;

[0031] Figure 7 For the present invention Figure 5 Schematic diagram of part D;

[0032] Figure 8 For the present invention Figure 4 Schematic diagram of part E;

[0033] Figure 9 This is a schematic diagram showing the disassembled structure of the outer shell layer and inner lining layer of the present invention;

[0034] Figure 10 For the present invention Figure 9 Schematic diagram of part F;

[0035] Figure 11 This is an exploded view of the sealing gland connection of the present invention.

[0036] In the diagram: 1. Mounting bracket; 2. Denitrification treatment cylinder; 3. Rotation control toothed roller; 4. Anti-detachment baffle; 5. Rotation toothed ring; 6. Outer shell layer; 7. Inner lining layer; 8. Heating chamber; 9. Support fin plate; 10. Drainage channel; 11. Distribution connecting pipe; 12. U-shaped return block plate; 13. Metal connecting rod; 14. Matching sealing disc; 15. Sealing cap; 16. Central support shaft; 17. Control air hood; 18. Heat supply hood; 19. Input annular groove; 20. Input connector; 21. Adhesive plate; 22. Sliding ball; 23. First connecting groove; 24. Second connecting groove; 25. Diversion annular groove; 26. Transfer groove; 27. Heat supply connecting pipe; 28. Switching piston; 29. ​​Transfer hole; 30. Reset spring; 31. Transfer annular groove; 32. Third connecting groove; 33. Material inlet; 34. Discharge annular groove; 35. Collection hood; 36. Discharge annular groove; 37. Discharge connector; 38. Circulation discharge pipe; 39. Support seat; 40. Spray pipe; 41. Telescopic control cylinder. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see the appendix Figure 1-11 This application provides the following technical solutions.

[0039] A spray-type aluminum ash denitrification device and method includes a mounting bracket 1. A denitrification treatment cylinder 2 is rotatably mounted on the middle section of the mounting bracket 1. Four rotating control toothed rollers 3 are horizontally mounted on the middle section of the mounting bracket 1 via roller connecting ears. Two rotating toothed rings 5 ​​are provided on the outer periphery of the denitrification treatment cylinder 2. The two rotating toothed rings 5 ​​are respectively meshed with the four rotating control toothed rollers 3. Anti-detachment baffles 4 are provided on the opposite sides of the two rotating control toothed rollers 3 on the same side, and one side of the anti-detachment baffle 4 is in contact with the side of the rotating toothed ring 5. One or both rotating control toothed rollers 3 are driven and controlled by a servo motor. When the motor controls the rotating control toothed rollers 3 to rotate, the rotating control toothed rollers 3 can achieve horizontal and stable rotation of the denitrification treatment cylinder 2 above the four rotating control toothed rollers 3 by meshing with the rotating toothed rings 5, and the anti-detachment baffles 4 can prevent the denitrification treatment cylinder 2 from detaching.

[0040] The denitrification treatment cylinder 2 includes an outer shell layer 6 and an inner lining layer 7. A heating chamber 8 is sandwiched between the outer shell layer 6 and the inner lining layer 7. Several support fins 9 are vertically and symmetrically arranged inside the heating chamber 8. A drainage groove 10 is sandwiched between two adjacent support fins 9. A discharge outlet is opened on one side inside the denitrification treatment cylinder 2. The mounting bracket 1 is located on the side of the discharge outlet and is covered with a sealing cover 15 by a horizontal pressing assembly. The horizontal pressing assembly includes a support base 39 and several telescopic control cylinders 41. Injecting a heat source into the heating chamber 8 can improve the reaction time of aluminum ash slag.

[0041] A heat source distribution assembly is set up to adjust the heat source distribution in the heating chamber 8. The heat source distribution assembly includes several distribution connecting pipes 11 and several heat delivery connecting pipes 27. The distribution connecting pipes 11 are horizontally inserted into the heating chamber 8, and the heat delivery connecting pipes 27 are horizontally inserted into one side of the sealing cap 15. Some of the drainage channels 10 are equipped with distribution connecting pipes 11 horizontally through guide plates. A material inlet 33 is provided at the center of one side of the denitrification treatment cylinder 2. Several metal connecting rods 13 are provided on the side of the distribution connecting pipes 11 near the material inlet 33. A U-shaped return flow blocking plate 12 is provided on one side of the metal connecting rods 13. The two sides of the U-shaped return flow blocking plate 12 are in contact with one side of the two support fins 9, and the center of the support fins 9 is cut off. After the heat source enters the heating chamber 8, it will flow along the drainage channel 10 formed between the support fins 9. The cut-off position in the middle of the support fins 9 can facilitate the formation of vortex in the middle of the airflow and facilitate the exchange and distribution of heat source.

[0042] A sealing disc 14 is provided on the side of the denitrification treatment cylinder 2 away from the material inlet 33. A conformal groove is formed on one side of the sealing disc 14. One side of the sealing cap 15 is inserted into the conformal groove of the sealing disc 14. A central support shaft 16 is provided at the center of the side of the sealing cap 15 away from the sealing disc 14. Several conical mating grooves are formed in the heating chamber 8, connecting to the conformal groove of the sealing disc 14. A transition groove 26 is formed on the side of the sealing cap 15 near the conical mating grooves. The heat supply connecting pipe 27 is horizontally placed in the transition groove 26. One end of the heat delivery pipe 27 passes through the sealing cap 15 and the conical mating groove and is inserted into the heating chamber 8. The heat delivery pipes 27 inserted into the heating chamber 8 are respectively arranged corresponding to the distribution pipes 11, and a conical sealing sleeve is fitted on the side of the heat delivery pipe 27 that passes through the sealing cap 15. A switching piston 28 is provided on the side of the heat delivery pipe 27 located in the transition groove 26. A diversion annular groove 25 is opened on the side of the rotating gear ring 5. Several transition grooves 26 are respectively connected to the diversion annular groove 25 and have diversion holes. The diameter of the diversion holes is smaller than that of the switching piston. The diameter of the plug 28, the side of the switching piston 28 located in the transfer groove 26 of the heat supply pipe 27 are all fitted with a return spring 30, and the side of the heat supply pipe 27 near the switching piston 28 has a transfer hole 29. The heating chamber 8 is connected to the transfer groove 26 through the heat supply pipe 27 and the transfer hole 29. The side of the sealing cover 15 away from the diversion annular groove 25 has a transfer annular groove 31. The transfer annular groove 31 and several transfer grooves 26 are all provided with a third connecting groove 32. The sealing cover 15 is squeezed to the denitrification treatment cylinder 2. This can improve the sealing stability of the connection. After connection, the sealing cap 15 and the denitrification treatment cylinder 2 rotate together to improve the sealing effect. When the heat supply pipe 27 is connected to the conical docking groove, the short-distance misalignment under the action of the conical structure will not affect the subsequent insertion. At the same time, the conical sealing sleeve can squeeze and seal the conical docking groove. After the aluminum ash slag is injected into the material inlet 33, the sealing cap needs to be sealed. During continuous production and processing, the aluminum ash slag to be processed is first transported to the material inlet 33 to wait to enter the denitrification treatment cylinder 2. The conveying equipment can be a V-shaped conveyor belt.

[0043] A circulation control component is set up to circulate the heat source through the heating chamber 8. The circulation control component includes a control gas hood 17, a heat delivery hood 18, and a collection hood 35. The heat delivery hood 18, the heating chamber 8, and the collection hood 35 are connected. The control gas hood 17 and the heat delivery hood 18 are both rotatably connected to the central support shaft 16 through sealed bearings. A synchronous connecting block is inserted between the control gas hood 17 and the heat delivery hood 18. The inner circumference of the control gas hood 17 and the heat delivery hood 18 are provided with input annular grooves 19. The central support shaft 16 is connected to the diversion annular groove 25 and the transfer annular groove 31 and has a number of first connecting grooves 23 and a number of second connecting grooves 24. The number of first connecting grooves 23 and the number of second connecting grooves 24 are respectively connected to two input annular grooves 19. The outer circumference of the control gas hood 17 and the heat delivery hood 18 are connected to the input annular grooves 19 and are provided with input connectors 20. The input connectors 20 can deliver heat source and high-pressure gas into the control gas hood 17 and the heat delivery hood 18.

[0044] Mounting bracket 1 has a support base 39 on the side near the central support shaft 16. A spray pipe 40 is horizontally fixed at the center of the support base 39. One side of the spray pipe 40 passes through the sealing cover 15 and the central support shaft 16 via multiple sealing rings and is inserted into the denitrification treatment cylinder 2. The lower end of the spray pipe 40 inside the denitrification treatment cylinder 2 has several spray nozzles. A bonding plate 21 is provided on one side of the control gas hood 17. Several sliding balls 22 are provided on one side of the bonding plate 21. One side of each sliding ball 22 contacts the side of the sealing cover 15. Support base 3 Several telescopic control cylinders 41 are horizontally arranged on one side of the 9. One side of each telescopic control cylinder 41 is connected to the side of the bonding plate 21. Several guide rods are horizontally arranged on the side of the heating cover 18 away from the control gas cover 17 and close to the support base 39. The guide rods are movably installed through the support base 39. The telescopic control cylinders 41 can control the horizontal movement of the sealing cover 15. The horizontal movement control can realize the sealing cover 15 to block or open the denitrification treatment cylinder 2. When opened, the aluminum ash slag mixture liquid after reaction in the denitrification treatment cylinder 2 will be automatically poured out.

[0045] A discharge annular groove 34 is provided on one side of the material inlet 33. The collection cover 35 is sleeved on the discharge annular groove 34 of the material inlet 33 through a sealed bearing. A discharge annular groove 36 is provided on the inner circumference of the collection cover 35 opposite to the discharge annular groove 34. A discharge connector 37 is provided on the outer circumference of the collection cover 35 connecting to the discharge annular groove 36. Several circulating discharge pipes 38 are provided in the heating chamber 8 and the discharge annular groove 34 of the material inlet 33. When the heat source enters the heating chamber 8, it can be discharged from the position of the circulating discharge pipes 38 and the collection cover 35 to complete the heat source circulation. The heat source temperature can be controlled at about 60°C.

[0046] A method for removing ash using a spray-type aluminum ash denitrification device includes the following steps:

[0047] Step 1: The aluminum ash slag generated from metal processing is directly conveyed to the installation bracket 1 through the material inlet 33. Then, it is conveyed into the denitrification treatment cylinder 2 from the material inlet 33. The installation bracket 1 is equipped with a rotating control toothed roller 3 to drive the denitrification treatment cylinder 2 to rotate stably. During this period, the spray pipe 40 sprays the aluminum ash slag that is continuously turning inside the denitrification treatment cylinder 2 to achieve denitrification treatment of the aluminum ash slag. The mixture of aluminum ash slag and solution after full treatment is discharged from the sealing plate 14 of the denitrification treatment cylinder 2 for subsequent processing.

[0048] Step 2: Before the aluminum ash slag mixing reaction treatment, the telescopic control cylinder 41 pushes the sealing cover 15 to press against the denitrification treatment cylinder 2 to achieve reliable sealing at the connection. When the denitrification treatment cylinder 2 rotates, the sealing cover 15 rotates along with it through the support of the denitrification treatment cylinder 2, the control gas cover 17 and the heat supply cover 18.

[0049] Step 3: During the rotation of the sealing cap 15, the heating cover 18 can send hot air into the transfer groove 26 through the second connecting groove 24. When the hot air is sent in, the central support shaft 16 is heated. At this time, the reaction solution transported by the spray pipe 40 can be heated simultaneously. After the heated air enters the transfer groove 26, it enters the heating connection pipe 27 through the transfer hole 29, and then enters the heating chamber 8 through the heating connection pipe 27.

[0050] Step 4: The hot airflow entering the heating chamber 8 heats the inner lining 7, improving the efficiency of the reaction between aluminum ash and solution in the denitrification treatment cylinder 2. Then, under the action of flow, the airflow enters the discharge annular groove 34 from the position of the circulation discharge pipe 38, and finally exits from the discharge connector 37 at the position of the discharge annular groove 36 of the collection hood 35, completing the hot airflow circulation.

[0051] Step 5: When the temperature difference between the side of the heating chamber 8 away from the heat delivery pipe 27 and the side closer to the heat delivery pipe 27 is large, high-pressure airflow is input into the control hood 17. The high-pressure airflow enters the diversion annular groove 25 from the first connecting groove 23. Then, the high-pressure airflow in the diversion annular groove 25 pushes the heat delivery pipe 27 to connect with the distribution pipe 11 in the heating chamber 8. Under the guidance of the distribution pipe 11, part of the hot airflow delivered by the heat delivery pipe 27 directly reaches the side of the heating chamber 8 away from the heat delivery pipe 27, and performs temperature compensation on the other side.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray-type aluminum ash denitrification device, characterized in that, include: Mounting bracket (1), on the middle section of the mounting bracket (1) is a denitrification treatment cylinder (2), the denitrification treatment cylinder (2) includes an outer shell layer (6) and an inner lining layer (7), a heating chamber (8) is sandwiched between the outer shell layer (6) and the inner lining layer (7), a vent is opened on one side inside the denitrification treatment cylinder (2), and a sealing cap (15) is provided on the side of the vent by a horizontal pressing assembly on the mounting bracket (1), the horizontal pressing assembly includes a support base (39) and several telescopic control cylinders (41); The heat source distribution assembly includes several distribution pipes (11) and several heat delivery pipes (27). The several distribution pipes (11) are horizontally inserted into the heating chamber (8), and the several heat delivery pipes (27) are horizontally inserted into one side of the sealing cap (15). A circulation control assembly, comprising a control gas hood (17), a heat supply hood (18), and a collection hood (35), wherein the heat supply hood (18), the heating chamber (8), and the collection hood (35) are connected in communication. The heating chamber (8) has several conical mating grooves in the conformal groove of the sealing disc (14). The sealing cover (15) has a transition groove (26) on one side near the conical mating groove. The heat delivery pipe (27) is placed horizontally in the transition groove (26). One end of the heat delivery pipe (27) passes through the sealing cover (15) and the conical mating groove and is inserted into the heating chamber (8). The heat delivery pipes (27) inserted into the heating chamber (8) are respectively set to correspond to the distribution pipes (11). The side of the heat delivery pipe (27) that passes through the sealing cover (15) is fitted with a conical sealing sleeve. The heat supply pipe (27) is provided with a switching piston (28) on one side of the transfer groove (26), and a diversion annular groove (25) is provided on one side of the rotating gear ring (5). Several transfer grooves (26) are respectively connected to the diversion annular groove (25) and have diversion holes. The diameter of the diversion holes is smaller than the diameter of the switching piston (28). The heat supply pipe (27) is provided with a return spring (30) on one side of the switching piston (28) in the transfer groove (26). The heat supply pipe (27) is provided with a transfer hole (29) on the side close to the switching piston (28). The heating chamber (8) is connected to the transfer groove (26) through the heat supply pipe (27) and the transfer hole (29). The sealing cover (15) is provided with a transfer annular groove (31) on the side away from the diversion annular groove (25). A third connecting groove (32) is provided between the transfer annular groove (31) and several transfer grooves (26). The control air hood (17) and the heat supply hood (18) are both rotatably connected to the central support shaft (16) through sealed bearings. A synchronous connecting block is inserted between the control air hood (17) and the heat supply hood (18). An input annular groove (19) is opened on the inner circumference of both the control air hood (17) and the heat supply hood (18). A number of first connecting grooves (23) and a number of second connecting grooves (24) are opened in the central support shaft (16) through the diversion annular groove (25) and the transfer annular groove (31). The number of first connecting grooves (23) and the number of second connecting grooves (24) are respectively connected to the two input annular grooves (19). An input connector (20) is provided on the outer circumference of both the control air hood (17) and the heat supply hood (18) through the input annular groove (19).

2. The spray-type aluminum ash denitrification device according to claim 1, characterized in that: Four rotating control toothed rollers (3) are horizontally arranged on the middle section of the mounting bracket (1) via roller connecting ears. Two rotating toothed rings (5) are provided on the outer periphery of the denitrification treatment cylinder (2). The two rotating toothed rings (5) are respectively meshed with the four rotating control toothed rollers (3). Anti-detachment baffles (4) are provided on the opposite sides of the two rotating control toothed rollers (3) on the same side, and one side of the anti-detachment baffle (4) is in contact with the side of the rotating toothed ring (5).

3. The spray-type aluminum ash denitrification device according to claim 2, characterized in that: The heating chamber (8) is vertically and symmetrically provided with several support fins (9). A flow channel (10) is sandwiched between two adjacent support fins (9). Some of the flow channels (10) are horizontally provided with distribution connecting pipes (11) through guide plates. A material inlet (33) is provided at the center of one side of the denitrification treatment cylinder (2). Several metal connecting rods (13) are provided on the side of the distribution connecting pipes (11) near the material inlet (33). A U-shaped reflux block plate (12) is provided on one side of the several metal connecting rods (13). The two sides of the U-shaped reflux block plate (12) are in contact with one side of the two support fins (9), and the center of the support fins (9) is cut off.

4. The spray-type aluminum ash denitrification device according to claim 3, characterized in that: The denitrification treatment cylinder (2) is provided with a matching sealing disc (14) on the side away from the material inlet (33). A conformal groove is provided on one side of the matching sealing disc (14). One side of the sealing cover (15) is inserted into the conformal groove of the matching sealing disc (14), and a central support shaft (16) is provided at the center of the side of the sealing cover (15) away from the matching sealing disc (14).

5. A spray-type aluminum ash denitrification device according to claim 4, characterized in that: The mounting bracket (1) has a support base (39) on one side near the central support shaft (16). A spray pipe (40) is horizontally fixed at the center of the support base (39). One side of the spray pipe (40) passes through the sealing cover (15) and the central support shaft (16) through multiple sealing rings and is inserted into the denitrification treatment cylinder (2). The lower end of the spray pipe (40) inside the denitrification treatment cylinder (2) has several spray nozzles. A bonding plate (21) is provided on one side of the control hood (17). A plurality of sliding balls (22) are provided on one side of the support base (39), and one side of the plurality of sliding balls (22) is in contact with the side of the sealing cover (15). A plurality of telescopic control cylinders (41) are horizontally provided on one side of the support base (39), and one side of the plurality of telescopic control cylinders (41) is connected to the side of the bonding plate (21). A plurality of guide rods are horizontally provided on the side of the heat supply cover (18) away from the control gas cover (17) and close to the support base (39), and the plurality of guide rods are respectively movably inserted through the support base (39).

6. The spray-type aluminum ash denitrification device according to claim 5, characterized in that: A discharge annular groove (34) is provided on one side of the material inlet (33). The collection cover (35) is sleeved on the discharge annular groove (34) of the material inlet (33) through a sealed bearing. A docking annular groove (36) is provided on the inner circumference side of the collection cover (35) opposite to the discharge annular groove (34). A discharge connector (37) is provided on the outer circumference side of the collection cover (35) connected to the docking annular groove (36). Several circulating discharge pipes (38) are provided in the heating chamber (8) and the discharge annular groove (34) of the material inlet (33).

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