Stepless regulation self-adaptive air distribution structure and garbage pyrolysis gasification chemical furnace applying same

Abstract

The stepless regulation self-adaptive air distribution structure comprises an equipment main body and an air distribution structure body, the self-adaptive air distribution structure body is installed at the bottom of the equipment main body and conveys high-pressure air flow into the equipment main body through an external air pump, and the air distribution structure body comprises an air distribution plate; the air distribution plate comprises a base plate and two sets of pin shafts, a plurality of sets of unit windows are arranged on the upper end face of the base plate in an array mode, the upper end face of each set of unit windows is correspondingly provided with a memory alloy air hole piece capable of adjusting the aperture ratio in a self-adaptive mode, and the two sets of pin shafts control the memory alloy air hole pieces to contract the strain track and push the deformed memory alloy air hole pieces to reset precisely. According to the invention, the air distribution structure is arranged, the memory alloy sheet generates contraction strain, so that the diamond-shaped air holes in the top layer are expanded along the long axis and the short axis, and the sub-second-level precise regulation and control of air quantity distribution in chemical waste incineration are realized through material intrinsic intelligent response.

Description

Technical Field

[0001] This invention relates to the field of distributed waste pyrolysis gasification equipment technology, and more specifically, to a stepless adjustable adaptive air distribution structure and a waste pyrolysis gasification furnace using this structure. Background Technology

[0002] Distributed waste pyrolysis gasification decomposes organic waste into combustible gas, tar, and ash in an oxygen-deficient or oxygen-limited environment through high temperatures, achieving both waste reduction and resource recovery.

[0003] Chemical-related waste presents greater challenges to traditional pyrolysis and gasification technologies due to its high organic content, complex composition, strong corrosiveness, and large fluctuations in calorific value. The pyrolysis gas has poor stability: high moisture content and high chlorine / sulfur compounds cause fluctuations in the calorific value of the gas (more than ±30%), affecting subsequent energy utilization. Slagging and clogging risks: High sodium / potassium waste (such as...) At high temperatures, it forms low-melting-point salt spray, which recrystallizes after condensation, clogging the air distribution structure; Tar adhesion problem: Pyrolysis of aromatic hydrocarbon waste (such as PVC and rubber) produces viscous tar, which is easy to deposit in pipelines, reducing heat transfer efficiency and increasing maintenance costs.

[0004] Patent CN202510443214.4 discloses a graded air distribution system for a waste incinerator grate. This system adjusts the airflow ratio into the drying grate, combustion grate, and burnout grate by rotating a threaded rod in the air distribution assembly. Furthermore, it adjusts the size of the air outlets via an air outlet regulating assembly, controlling the air pressure before directing it towards the drying, combustion, and burnout grate, thereby enhancing the air distribution effect.

[0005] Existing air distribution structures often rely on manual or mechanical adjustments, which cannot respond in real time to changes in furnace operating conditions, leading to uneven air distribution and affecting pyrolysis efficiency. Furthermore, fixed air distribution holes are easily covered by salt spray crystals or tar, requiring periodic mechanical cleaning and interrupting continuous operation. Traditional mechanical adjustment systems require additional power, increasing energy consumption and maintenance difficulty. Therefore, this invention provides an adaptive air distribution structure that achieves passive adaptive control of the opening ratio through precise coupling of material phase change and mechanical elasticity, thus solving the problems of response lag, easy clogging, and additional energy consumption associated with existing air distribution structures. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a steplessly adjustable adaptive air distribution structure. The technical solution of this invention includes an air distribution structure comprising an air distribution box, an air distribution plate installed within the air distribution box, and an air distribution plate with an opening ratio of 45%–50%. The air distribution plate includes a substrate, and the upper surface of the substrate is arrayed with several sets of unit windows. Each set of unit windows has a corresponding shape memory alloy perforated plate with an adaptively adjustable opening ratio installed on its upper surface. Two sets of pins are arranged in the area adjacent to the shape memory alloy perforated plate and the unit window, and the two sets of pins are symmetrically installed along the diagonal. These pins, in conjunction with the air distribution plate, control the contraction strain trajectory of the shape memory alloy perforated plate and precisely reset the deformed shape memory alloy perforated plate.

[0007] Furthermore, in the technical solution of the present invention, the unit window includes a bottom diamond-shaped air hole opened on the upper surface of the substrate, four sets of welding flanges arranged around the bottom diamond-shaped air hole along the axis of symmetry, and two sets of guide grooves symmetrically opened along the diagonal, with a locking hole vertically opened in the middle of the bottom of the guide groove.

[0008] Furthermore, in the technical solution of the present invention, the shape memory alloy perforated sheet includes a shape memory alloy sheet. A top-level diamond-shaped perforation is provided in the middle of the upper end face of the shape memory alloy sheet in the area directly above the bottom diamond-shaped perforation. The long axis of the top-level diamond-shaped perforation is consistent with the alloy rolling direction. A thermal barrier coating is provided in the area corresponding to the welding flange on the lower end face of the shape memory alloy sheet. Mounting recesses are respectively provided in the areas corresponding to the two sets of locking holes on the lower end face of the shape memory alloy sheet.

[0009] Furthermore, in the technical solution of the present invention, the welding flange has a size of 2mm*2mm*0.3mm, the thermal barrier coating is a 100um thick yttrium-stabilized zirconia coating, and the welding flange and the thermal barrier coating are spot welded by pulsed laser with a welding penetration of 0.4mm.

[0010] Furthermore, in the technical solution of the present invention, the pin includes a fixed end disposed inside the locking hole, a sliding end slidably connected in the guide groove, a tapered head disposed on the top of the sliding end and spot-welded to the mounting recess, and a C-shaped retaining ring for connecting the fixed end and the sliding end.

[0011] Furthermore, in the technical solution of the present invention, the fixed end material is zirconia ceramic and is interference-fitted with the locking hole, and a uniform ceramic layer with a thickness of 5±0.5μm is formed at the interface between the fixed end and the locking hole by micro-arc oxidation.

[0012] Furthermore, in the technical solution of the present invention, the micro-arc oxidation process includes the following steps: The inner wall of the locking hole is sandblasted and then cleaned with acetone and water in sequence. The assembled locking hole and fixing end are immersed in the electrolyte, and a pulse power supply is applied to perform micro-arc oxidation. The process employed a bipolar pulse, a voltage of 450±20V, a treatment time of 30min, and an electrolyte temperature of 20-40℃. Sealed with boiling water, dried, and then sprayed with a high-temperature lubricant.

[0013] Another aspect of the present invention provides a stepless adjustable adaptive air distribution structure and a waste pyrolysis gasification chemical furnace using the structure, including the aforementioned adaptive air distribution structure, and further including: a main body of the equipment, wherein the adaptive air distribution structure is installed at the bottom of the main body of the equipment and delivers high-pressure airflow into the main body of the equipment through an external air pump.

[0014] Effective gain: In the technical solution of this invention, by setting up an air distribution structure, as the temperature rises to above 300°C, the crystal structure of the shape memory alloy sheet transforms from martensitic orthorhombic to austenitic cubic, generating shrinkage strain, thereby causing the top rhombic air holes to expand along the long axis and short axis. Through the intrinsic intelligent response of the material, the porosity can be infinitely varied from 20% to 50%. At the same time, the periodic deformation (vibration effect) of the shape memory alloy can actively peel off salt spray crystals and tar deposits, avoiding the clogging problem caused by salt spray crystal adhesion. Moreover, by setting two sets of pins diagonally and interfering with the locking holes, the sliding end is installed at the upper end through a C-shaped retaining ring. In the high-temperature section, when the shape memory alloy sheet shrinks and strains, the conical head spot-welded in the mounting recess controls the shape memory alloy sheet to deform along the guide groove, preventing the shape memory alloy sheet from rotating due to airflow impact or thermal deformation. After the temperature drops, the deformed C-shaped retaining ring pushes the annular mounting groove to drive the mounting recess, causing the shape memory alloy sheet to return to its original position, thus improving the repeatability of precise control. Finally, a uniform ceramic layer with a thickness of 5±0.5μm is formed at the interface between the fixed end and the locking hole through micro-arc oxidation. Micro-arc oxidation causes iron ions in the locking hole and zirconium ions in the fixed end to become free, and forms a Zr-O-Fe transition layer with the ceramic layer at the interface, which improves the bonding strength with the locking hole interface under high temperature conditions, thereby extending the effective service life of the pin.

[0015] Other features and advantages of the present invention will be set forth in the following description. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a stepless adjustable adaptive air distribution structure and a waste pyrolysis gasification chemical furnace using the same structure, according to the present invention. Figure 2This is a partial cross-sectional schematic diagram of the adaptive air distribution structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a partial cross-sectional structural diagram of the air distribution plate of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 6 For the present invention Figure 4 Enlarged structural diagram at point C; Figure 7 This is a schematic diagram of the front structure of the shape memory alloy perforated plate of the present invention; Figure 8 This is a schematic diagram of the back structure of the shape memory alloy perforated sheet of the present invention; Figure 9 This is a schematic diagram of the pin structure of the present invention; Figure 10 This is a cross-sectional structural diagram of the pin shaft of the present invention.

[0018] In the diagram: 1. Main body of the equipment; 2. Air distribution structure; 21. Air distribution box; 22. Air distribution plate; 221. Base plate; 222. Unit window; 2221. Guide groove; 2222. Welding flange; 2223. Bottom layer diamond-shaped air hole; 2224. Locking hole; 223. V-shaped channel; 23. Shape memory alloy air hole plate; 231. Shape memory alloy plate; 232. Top layer diamond-shaped air hole; 233. Thermal barrier coating; 234. Mounting recess; 24. Pin; 241. Conical head; 242. Sliding end; 243. Fixed end; 244. C-shaped retaining ring; 245. Annular mounting groove. Detailed Implementation

[0019] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] This invention proposes a stepless adjustable adaptive air distribution structure and a waste pyrolysis gasification chemical furnace using this structure, including a main body 1 and an air distribution structure 2.

[0021] Please see Figure 1 The air distribution structure 2 is located at the bottom of the main body 1 of the equipment. The air distribution structure 2 is connected to an external air pump to deliver high-pressure gas into the main body 1 of the equipment.

[0022] It should be noted that the waste is fed into the main body 1 of the equipment for pyrolysis and gasification. The air distribution structure 2 adaptively changes the size and speed of the airflow to promote the full pyrolysis of the waste inside the main body 1 of the equipment.

[0023] Please see Figure 2 and Figure 3 The air distribution structure 2 includes an air distribution box 21 fixedly connected to the bottom of the equipment body 1 and communicating with the inner cavity of the equipment body 1. An air distribution plate 22 is fixedly connected to the inner wall of the air distribution box 21 by welding or riveting. Several sets of shape memory alloy air holes 23 are arranged in an array on the upper surface of the air distribution plate 22. Two sets of pins 24 are arranged diagonally in the area adjacent to each set of shape memory alloy air holes 23 and the air distribution plate 22. The two sets of pins 24 control the contraction strain trajectory of the shape memory alloy air holes 23 and push the deformed shape memory alloy air holes 23 to reset by cooperating with the air distribution plate 22.

[0024] It should be added that the opening ratio of the air distribution plate 22 is 45% to 50%, and the real-time opening ratio of the air distribution plate 22 is controlled to be 20% to 50% by the shrinkage strain of the shape memory alloy air hole plate 23.

[0025] It should also be noted that the shape memory alloy perforated plate 23 is made of NiTiNol alloy, and by mass fraction, it includes: nickel 49%–51%; titanium 37%–45%; copper 1%–5%; and palladium 5%–7%. The high-temperature phase transformation temperature of the shape memory alloy perforated plate 23 is 300–550℃.

[0026] It should be noted that the lower end face of the air distribution plate 22 is equipped with several sets of temperature control components, which can independently control the temperature of the shape memory alloy air vent plate 23. The airflow in the corresponding area can be dynamically controlled according to the material distribution, improving the pyrolysis and gasification rate of the material, reducing tar production. Furthermore, if cracks appear in the shape memory alloy air vent plate 23 after a period of use, the corresponding area of ​​the shape memory alloy air vent plate 23 can be locally induction heated to 800-950℃, achieving crack healing through surface diffusion and extending the maintenance cycle of the shape memory alloy air vent plate 23.

[0027] Please see Figures 4 to 6 The air distribution plate 22 includes a substrate 221. The upper surface of the substrate 221 is provided with an array of several sets of unit windows 222. The upper surface of the substrate 221 is provided with several sets of V-shaped channels 223 spaced apart along the long axis.

[0028] It should be added that the V-shaped channel 223 is wavy, with a depth of 0.5mm to 0.6mm and a width of 3mm to 5mm, and the interval between two adjacent sets of V-shaped channels 223 is 200mm to 300mm.

[0029] It should also be noted that substrate 221 is chemically polished, with a roughness Ra=0.2.

[0030] Specifically, the unit window 222 includes a set of bottom diamond-shaped air holes 2223 and two sets of guide grooves 2221 formed on the upper surface of the substrate 221. The bottom diamond-shaped air holes 2223 are located in the middle of the unit window 222 and their long axis is consistent with the alloy rolling direction. A set of welding flanges 2222 are fixedly connected around the bottom diamond-shaped air holes 2223. The four sets of welding flanges 2222 are symmetrically arranged along the long axis and short axis of the bottom diamond-shaped air holes 2223, respectively. The two sets of guide grooves 2221 are symmetrically arranged along the center of the bottom diamond-shaped air holes 2223 and form a 45° angle with the long axis of the bottom diamond-shaped air holes 2223.

[0031] Furthermore, a locking hole 2224 is provided in the middle of the bottom of the guide groove 2221 along the vertical direction.

[0032] Please see Figure 7 and Figure 8 The shape memory alloy perforated plate 23 includes a shape memory alloy plate 231. A top-level diamond-shaped perforation 232 is provided on the upper surface of the shape memory alloy plate 231. The top-level diamond-shaped perforation 232 is located directly above the bottom-level diamond-shaped perforation 2223. The real-time opening area of ​​the bottom-level diamond-shaped perforation 2223 is controlled by the stress contraction and recovery of the top-level diamond-shaped perforation 232. A thermal barrier coating 233 is provided on the lower surface of the shape memory alloy plate 231 in the area corresponding to the welding flange 2222. An installation recess 234 is provided on the lower surface of the shape memory alloy plate 231 in the area corresponding to the locking hole 2224.

[0033] It should be noted that the welding flange 2222 has dimensions of 2mm*2mm*0.3mm, and the thermal barrier coating 233 is a 100um thick yttrium-stabilized zirconia coating. The upper surface of the welding flange 2222 is provided with a micro-grid texture and a surface roughness Ra=0.6 to improve the accuracy of spot welding. The welding flange 2222 and the thermal barrier coating 233 are spot welded by pulsed laser to fix the shape memory alloy sheet 231 to the upper surface of the substrate 221 while reducing the influence on the strain freedom of the shape memory alloy sheet 231. The weld penetration is 0.4mm to enhance the connection strength between the unit window 222 and the shape memory alloy sheet 231. The thermal barrier coating 233 is sprayed onto the welding area of ​​the lower surface of the shape memory alloy sheet 231 by plasma spraying to isolate the temperature and reduce the influence of spot welding on the thermal strain of the shape memory alloy sheet 231.

[0034] Please see Figures 9 to 10 The pin 24 includes a fixed end 243 that is interference-fitted with the locking hole 2224, a sliding end 242 that is slidably connected to the guide groove 2221, a tapered head 241 that is fixedly connected to the top of the sliding end 242 and spot-welded to the mounting recess 234, and a C-shaped retaining ring 244 for connecting the sliding end 242 and the fixed end 243.

[0035] It should be added that the fixed end 243 is made of zirconia ceramic.

[0036] Specifically, an annular mounting groove 245 is provided in the area adjacent to the fixed end 243 and the sliding end 242. A C-shaped retaining ring 244 is installed in the annular mounting groove 245, and the height of the upper end of the C-shaped retaining ring 244 extending out of the locking hole 2224 does not exceed 0.1mm, so as to avoid interfering with the sliding end 242 sliding along the guide groove 2221.

[0037] Furthermore, the interface between the fixed end 243 and the inner wall of the locking hole 2224 is formed with a uniform ceramic layer with a thickness of 5±0.5μm through a micro-arc oxidation process.

[0038] Specifically, the micro-arc oxidation process includes the following steps: The inner wall of the locking hole 2224 is sandblasted and then cleaned with acetone and water in sequence. The blasting material is alumina sand with a particle size of 120 mesh.

[0039] Immerse the assembled locking hole 2224 and fixed end 243 in the electrolyte, apply a pulse power supply, and perform micro-arc oxidation; The pulse power supply uses bipolar pulses, with positive pulses promoting oxidation and negative pulses cooling. The power supply voltage is 450±20V, the processing time is 30min, and the processing time is positively correlated with the ceramic layer thickness. The ceramic layer thickness is 5±0.5μm after 30min. The electrolyte temperature is 20-40℃. If the electrolyte temperature exceeds 50℃, the ceramic layer will become porous. The electrolyte mainly consists of Na2SiO3 12g / L, which provides silicate ions to promote the formation of a dense layer; KOH 2g / L, which adjusts the pH to 11-12 to enhance electrical conductivity; NaAlO 25g / L, which introduces alumina to improve the toughness of the ceramic layer; and Na2WO4 3g / L, which generates WO3 dispersed phase to inhibit crack propagation. The solvent is deionized water.

[0040] The mixture was sealed in boiling water at 98°C for 2 hours, dried, and then sprayed with a high-temperature lubricant, specifically a MoS2-based lubricant.

[0041] Furthermore, the width margin of the guide groove 2221 is one-tenth of the diameter of the sliding end 242 to avoid material deformation under high temperature conditions, which could cause the sliding end 242 to jam. The cone angle of the tapered head 241 is 15° to improve the accuracy of the tapered head 241 in positioning the mounting recess 234.

[0042] It is understandable that the shape memory alloy sheet 231 and the unit window 222 are fixedly connected by four points of spot welding between the thermal barrier coating 233 and the welding flange 2222, and two points of spot welding between the conical head 241 and the mounting recess 234. The weld points are distributed along the long axis, short axis and diagonal of the top diamond-shaped air hole 232, which improves the stability of the connection between the shape memory alloy sheet 231 and the substrate 221. When the shape memory alloy sheet 231 contracts and strains, the conical head 241 spot welded in the mounting recess 234 controls the shape memory alloy sheet 231 to deform along the guide groove 2221, which preserves the degree of freedom of the shape memory alloy sheet 231 in terms of strain while preventing the shape memory alloy sheet 231 from rotating due to airflow impact or thermal deformation.

[0043] Furthermore, when treating chemical waste with rapidly changing composition, strong corrosiveness, and easy coking, the real-time area of ​​the top-layer rhomboid air holes 232 can be controlled by local temperature control, thereby achieving real-time distribution and precise regulation of air volume. At the same time, during pyrolysis, the top-layer rhomboid air holes 232 are in a repeated expansion and contraction motion, which can prevent salt spray from crystallizing at the top-layer rhomboid air holes 232 and causing air outlet blockage.

[0044] Principle: When the temperature exceeds 300℃, the crystal structure of the shape memory alloy sheet 231 transforms from martensitic orthorhombic to austenitic cubic, generating shrinkage strain. This causes the top-layer rhombic air vents 232 to expand along the long and short axes. Since this shrinkage strain rate is positively correlated with temperature, the real-time opening area of ​​the bottom-layer rhombic air vents 2223 can be adjusted by controlling the temperature. At the same time, when the shape memory alloy sheet 231 shrinks, it drives the conical head 241 to twist the C-shaped retaining ring 244 and deform it, sliding it along the guide groove 2221. This ensures that the shrinkage direction of the shape memory alloy sheet 231 is always located in the XY plane, preventing the shape memory alloy sheet 231 from curling. After the temperature decreases, the deformed C-shaped retaining ring 244 pushes the sliding end 242 to restore the shape memory alloy sheet 231. Furthermore, the real-time opening area of ​​different areas can be controlled through the temperature control system, improving the distribution and regulation of material distribution and airflow. In the micro-arc oxidation process, the metal acts as the anode in the electrolyte, and an initial oxide film is formed on its surface. During discharge, the oxide film is locally broken down to generate micro-plasma. The metal reacts with the electrolyte components in the discharge channel, and the melt is rapidly cooled to form a dense alumina ceramic layer. The generated alumina ceramic forms an alumina-zirconia composite ceramic with the fixed end 243, which improves the interfacial bonding toughness. At the same time, a Zr-O-Fe transition layer is formed at the interface between the ceramic layer and the metal, which improves the interfacial bonding strength between the fixed end 243 and the locking hole 2224 under high temperature conditions.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive air distribution structure, comprising an air distribution structure (2), wherein the air distribution structure (2) includes an air distribution box (21), characterized in that, The air distribution box (21) is equipped with an air distribution plate (22) with an opening ratio of 45% to 50%. The air distribution plate (22) includes a base plate (221). The upper surface of the base plate (221) is arranged with several sets of unit windows (222). Each set of unit windows (222) is equipped with a shape memory alloy air hole plate (23) with an adaptively adjustable opening ratio. The shape memory alloy air hole plate (23) and the unit window (222) are adjacent to each other with two sets of pins (24). The two sets of pins (24) are symmetrically installed along the diagonal and control the shrinkage strain trajectory of the shape memory alloy air hole plate (23) and push the deformed shape memory alloy air hole plate (23) to accurately reset by cooperating with the air distribution plate (22).

2. The adaptive air distribution structure according to claim 1, characterized in that, The unit window (222) includes a bottom diamond-shaped air hole (2223) opened on the upper surface of the substrate (221), four sets of welding flanges (2222) arranged around the bottom diamond-shaped air hole (2223) along the axis of symmetry, and two sets of guide grooves (2221) symmetrically opened along the diagonal. The bottom center of the guide groove (2221) is provided with a locking hole (2224).

3. The adaptive air distribution structure according to claim 2, characterized in that, The shape memory alloy perforated sheet (23) includes a shape memory alloy sheet (231). A top diamond perforation (232) is provided in the middle of the upper end face of the shape memory alloy sheet (231) in the area directly above the bottom diamond perforation (2223). The long axis of the top diamond perforation (232) is consistent with the alloy rolling direction. A thermal barrier coating (233) is provided in the area corresponding to the welding flange (2222) on the lower end face of the shape memory alloy sheet (231). Mounting recesses (234) are respectively provided in the areas corresponding to the two sets of locking holes (2224) on the lower end face of the shape memory alloy sheet (231).

4. The adaptive air distribution structure according to claim 3, characterized in that, The welding flange (2222) has a size of 2mm*2mm*0.3mm, and the thermal barrier coating (233) is a yttrium-stabilized zirconia coating with a thickness of 100um. The welding flange (2222) and the thermal barrier coating (233) are welded by pulsed laser spot welding with a welding penetration of 0.4mm.

5. The adaptive air distribution structure according to claim 4, characterized in that, The pin (24) includes a fixed end (243) disposed inside the locking hole (2224), a sliding end (242) slidably connected in the guide groove (2221), a tapered head (241) disposed on the top of the sliding end (242) and spot-welded to the mounting recess (234), and a C-shaped retaining ring (244) for connecting the fixed end (243) and the sliding end (242).

6. The adaptive air distribution structure according to claim 5, characterized in that, The fixed end (243) is made of zirconia ceramic and is press-fitted with the locking hole (2224). A uniform ceramic layer with a thickness of 5±0.5μm is formed at the interface between the fixed end (243) and the locking hole (2224) by micro-arc oxidation process.

7. The adaptive air distribution structure according to claim 6, characterized in that, The micro-arc oxidation process includes the following steps: The inner wall of the locking hole (2224) was sandblasted and then cleaned with acetone and water in sequence. The assembled locking hole (2224) and fixed end (243) are immersed in the electrolyte, and a pulse power supply is applied to perform micro-arc oxidation. The pulse power supply uses bipolar pulses with a voltage of 450±20V, a processing time of 30min, and an electrolyte temperature of 20-40℃. Sealed with boiling water, dried, and then sprayed with a high-temperature lubricant.

8. A waste pyrolysis gasification chemical furnace, characterized in that, The device includes the adaptive air distribution structure as described in any one of claims 1-7, and further includes: a device body (1), wherein the adaptive air distribution structure is installed at the bottom of the device body (1) and delivers high-pressure airflow into the device body (1) through an external air pump.

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