A dynamic fly ash pyrolysis furnace device and method

Abstract

The application discloses a dynamic fly ash pyrolysis furnace device and method, and relates to the technical field of fly ash treatment. The device comprises an ash inlet bottom pipe, a preliminary crusher, a vibrating crushing pipe, a high-temperature pyrolysis assembly and the like. A high-temperature-resistant vibrating screen is arranged in the vibrating crushing pipe, one end of the vibrating screen is provided with a high-frequency pulse airflow assembly, the other end of the vibrating screen is provided with a high-temperature pyrolysis assembly, a non-sealed pneumatic assembly is arranged in a downstream cavity, and an elastic guide assembly elastically matched with the non-sealed pneumatic assembly is arranged in an upstream cavity. The fly ash is preliminarily crushed, then is blown and vibrated by airflow, and finally is deeply pyrolyzed through the cooperation of multiple assemblies. The device can crush the fly ash into smaller particles, improves the pyrolysis efficiency, and realizes the harmless treatment and resource utilization of the fly ash.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fly ash treatment, and particularly relates to a dynamic fly ash pyrolysis furnace device and method. BACKGROUND

[0002] In the process of modern garbage treatment and leaf burning, a large amount of fly ash is generated. The fly ash often contains harmful substances such as heavy metals and dioxins. If the fly ash is directly discharged without proper treatment, it will cause serious pollution to the soil, water and air, and threaten the ecological environment and human health. Therefore, deep pyrolysis of fly ash becomes a key link. Deep pyrolysis can effectively decompose harmful substances, reduce the harmfulness of fly ash, and even realize the recycling of part of the resources.

[0003] Before pyrolysis of fly ash, crushing the fly ash is an important step to improve the pyrolysis efficiency. Because the size of fly ash particles directly affects the contact area and reaction rate of pyrolysis reaction. At present, the commonly used crushing method is to use conventional spiral blades to process large fly ash. However, this ordinary spiral blade crushing method has obvious defects: on the one hand, the crushing effect of the spiral blade is relatively single, mainly relying on mechanical extrusion and cutting, and it is difficult to crush the fly ash to the ideal small size; on the other hand, in the crushing process, the fly ash is easy to agglomerate, which further affects the crushing effect, resulting in large size of the finally crushed fly ash. This makes the contact area of fly ash with pyrolysis medium limited in the subsequent pyrolysis, and the pyrolysis reaction cannot be fully carried out, which reduces the pyrolysis efficiency and increases the pyrolysis cost, and it is difficult to meet the high standard requirements of environmental protection and resource utilization. SUMMARY

[0004] To solve the above technical problems, the present application is realized by the following technical scheme:

[0005] The present application provides a dynamic fly ash pyrolysis furnace device, which comprises an ash inlet bottom pipe, a preliminary crusher communicating with the ash inlet bottom pipe, a vibration crushing pipe arranged downstream of the preliminary crusher, a high-temperature vibration screen arranged in the vibration crushing pipe, a high-frequency pulse airflow assembly arranged at one end of the vibration crushing pipe, and a high-temperature pyrolysis assembly arranged at the other end of the vibration crushing pipe. The vibration crushing pipe comprises an upstream cavity arranged at the upstream side of the high-temperature vibration screen and a downstream cavity arranged at the downstream side of the high-temperature vibration screen.

[0006] The high-frequency pulse airflow assembly comprises a matrix airflow nozzle facing the upstream cavity, a nozzle angle micro-adjuster driving the rotation of the matrix airflow nozzle, and a first pulse airflow valve connected with the matrix airflow nozzle through an air pipe.

[0007] The downstream cavity of the vibration breaking tube is configured with multiple non-sealing pneumatic components distributed at equal intervals, and the upstream cavity of the vibration breaking tube is configured with an elastic guide component elastically matched with the non-sealing pneumatic component. The non-sealing pneumatic component comprises a fixed sleeve fixedly connected with the edge area of the multiple high-temperature-resistant vibration screens, a high-frequency air outlet pipe fixedly arranged in the inner wall of the downstream cavity and movably inserted into the fixed sleeve, and a second pulse air flow valve communicated with the high-frequency air outlet pipe through the air pipe. The first pulse air flow valve and the second pulse air flow valve are connected with the gas supply device through the air pipe upstream.

[0008] As a preferred technical scheme of the device, the ring side of the high-temperature-resistant vibration screen in contact with the inner wall of the vibration breaking tube is coated with phosphate paint.

[0009] As a preferred technical scheme of the device, the rib of the high-temperature-resistant vibration screen is provided with a breaking triangular sharp edge towards the upstream cavity.

[0010] As a preferred technical scheme of the device, the fluid cross-sectional area of the upstream cavity of the vibration breaking tube is smaller than that of the downstream cavity. The fluid cross-sectional area of the downstream cavity gradually increases from the high-temperature-resistant vibration screen to the high-temperature pyrolysis component.

[0011] As a preferred technical scheme of the device, the airflow impact area is formed between the air outlet end of the high-frequency air outlet pipe and the innermost area of the fixed sleeve cavity, and the airflow leakage gap is formed between the ring side of the high-frequency air outlet pipe and the ring side wall of the fixed sleeve cavity.

[0012] As a preferred technical scheme of the device, the end face of the air outlet end of the high-frequency air outlet pipe is provided with a spoiler spherical surface, and the innermost area wall of the fixed sleeve is provided with an inner end spherical surface with a radial dimension greater than the spoiler spherical surface.

[0013] As a preferred technical scheme of the device, the elastic guide component comprises multiple guide sleeves fixedly arranged at equal intervals on the inner wall of the upstream cavity, and a guide rod slidably connected with the guide sleeve. The guide rod is fixedly connected with the edge area of the high-temperature-resistant vibration screen, and the guide rod is sleeved with a tension spring located between the guide sleeve and the high-temperature-resistant vibration screen.

[0014] The application further provides a dynamic fly ash pyrolysis treatment method, which comprises the following steps:

[0015] S1. The fly ash enters the preliminary breaker through the ash inlet pipe and is subjected to preliminary breaking treatment in the preliminary breaker.

[0016] S2. The fly ash after the preliminary breaking enters the upstream cavity of the vibration breaking tube, the gas supply device supplies gas to the first pulse air flow valve, and the gas flow controlled by the first pulse air flow valve is discharged through the matrix type air flow nozzle towards the upstream cavity and the high-temperature-resistant vibration screen.

[0017] S3. The nozzle angle fine adjuster periodically drives the matrix type airflow nozzle to deflect, and the fly ash adhered to the high-temperature-resistant vibrating screen is blown off the mesh hole from different angles.

[0018] S4. The gas supply device supplies gas to the second pulse airflow valve, the second pulse airflow valve outputs pulse airflow to the non-sealed pneumatic assembly, the high-frequency air outlet pipe in the non-sealed pneumatic assembly outputs air to the fixed sleeve, and the high-temperature-resistant vibrating screen vibrates under the cooperation of the non-sealed pneumatic assembly and the elastic guide assembly.

[0019] S5. The upstream cavity has a smaller fluid cross-sectional area than the downstream cavity, and the upstream cavity has a faster flow rate than the downstream cavity. When the fly ash passes through the high-temperature-resistant vibrating screen, the fly ash is broken by the high-temperature-resistant vibrating screen and enters the downstream cavity, and the fly ash moves at a lower speed and has an increased diffusion effect.

[0020] S6. After the fly ash is fully diffused in the downstream cavity, it enters the high-temperature pyrolysis assembly, which performs deep pyrolysis treatment on the fly ash to complete the entire process of fly ash pyrolysis.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] The present application can break the fly ash into smaller particles through the cooperation of the preliminary crusher and the vibrating crusher pipe, especially the high-temperature-resistant vibrating screen in the vibrating crusher pipe and the high-frequency pulse airflow assembly. The fly ash can be blown off the screen by the high-frequency pulse airflow from the matrix type airflow nozzle at multiple angles. The nozzle angle fine adjuster can periodically change the blowing angle to ensure that the fly ash is fully dispersed. The ribs of the high-temperature-resistant vibrating screen are arranged in a triangular shape to further break the fly ash when it passes through. Compared with traditional spiral blade crushing, smaller fly ash particles can be obtained, which is beneficial to the energy-saving and efficient pyrolysis operation of the subsequent high-temperature pyrolysis assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The figure is a schematic diagram of the overall structure of the device.

[0024] Figure 2 The figure is a schematic diagram of the overall structure of the device. Figure 1 The figure is a schematic diagram of the structure of the device.

[0025] Figure 3 The figure is a schematic diagram of the overall structure of the device. Figure 1 The figure is a schematic diagram of the structure of the device.

[0026] Figure 4 The figure is a schematic diagram of the overall structure of the device. Figure 3 The figure is a schematic diagram of the structure of the device.

[0027] Figure 5 The figure is a schematic diagram of the structure of the device. The figure is a schematic diagram of the structure of the device.

[0028] The components are as follows: 1-Ash inlet bottom pipe; 2-Primary crusher; 3-Vibrating crushing pipe; 301-Upstream cavity; 302-Downstream cavity; 4-High-temperature pyrolysis component; 5-Nozzle angle fine adjuster; 6-Matrix airflow nozzle; 7-First pulse airflow valve; 8-High-temperature resistant vibrating screen; 801-Crushing triangular tip; 9-Second pulse airflow valve; 10-Air supply equipment; 11-Guide sleeve; 12-Guide rod; 13-Tension spring; 14-Fixed sleeve; 1401-Inner end spherical surface; 15-Airflow impact zone; 16-High-frequency air outlet pipe; 1601-Turbulence spherical surface; 17-Airflow leakage gap. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] Example 1: This invention designs a dynamic fly ash pyrolysis furnace device, mainly equipped with a primary crusher 2, a vibrating crushing tube 3, a high-temperature resistant vibrating screen 8, a high-frequency pulse airflow assembly, a non-sealed pneumatic assembly, and an elastic guide assembly. The specific structure is as follows:

[0031] Overall architecture: such as Figure 1 As shown, the device mainly consists of an ash inlet bottom pipe 1, a primary crusher 2, a vibrating crushing pipe 3, a high-temperature pyrolysis assembly 4, a high-frequency pulse airflow assembly, a non-sealed pneumatic assembly, and an elastic guide assembly. Fly ash first enters the primary crusher 2 through the ash inlet bottom pipe 1, undergoes primary crushing, then enters the vibrating crushing pipe 3, and finally completes deep pyrolysis in the high-temperature pyrolysis assembly 4.

[0032] (a) Primary Crusher 2: such as Figure 1 As shown, the fly ash entering the device undergoes preliminary treatment, breaking larger pieces into relatively smaller particles to prepare for further crushing in the vibrating crushing tube 3. This pre-treatment reduces the fly ash particle size, lowers the difficulty of subsequent crushing, and improves overall crushing efficiency.

[0033] (II) Vibration-driven crushing pipe 3: such as Figure 1 , Figure 3 , Figure 4, including upstream cavity 301 and downstream cavity 302, is the key component of fly ash crushing. The fluid section area of upstream cavity 301 is smaller than that of downstream cavity 302, which makes the airflow faster in upstream cavity 301. When the fly ash passes through the high-temperature-resistant vibrating mesh screen 8 from the upstream cavity 301 to the downstream cavity 302, the fly ash is crushed by the difference in flow rate. At the same time, the fluid section area of the downstream cavity 302 gradually increases from the high-temperature-resistant vibrating mesh screen 8 to the high-temperature pyrolysis assembly 4, and the moving speed of the fly ash decreases after entering the downstream cavity 302, and the diffusion effect increases, which is beneficial to the subsequent pyrolysis reaction.

[0034] (Three) high-temperature-resistant vibrating mesh screen 8: as Figure 1 , Figure 3 , Figure 4 , the crushing triangular sharp 801 is arranged on the side of the rib facing the upstream cavity 301, and when the fly ash passes through the high-temperature-resistant vibrating mesh screen 8 quickly, the crushing triangular sharp 801 can cut and crush the fly ash, further reducing the particle size of the fly ash, and compared with the traditional crushing method, finer fly ash particles can be obtained, the contact area between the fly ash and the pyrolysis medium is increased, and the pyrolysis efficiency is improved.

[0035] Phosphate coating: the ring side in contact with the inner wall of the vibrating crushing pipe 3 is coated with phosphate coating, which can play the role of high-temperature resistance and corrosion resistance, protect the high-temperature-resistant vibrating mesh screen 8, prolong its service life, and ensure stable operation in a high-temperature environment.

[0036] (Four) high-frequency pulse airflow assembly: as Figure 1 , Figure 2 , including matrix type airflow nozzle 6, nozzle angle fine tuner 5, and first pulse airflow valve 7.

[0037] Matrix type airflow nozzle 6: air is blown towards the upstream cavity 301 and the high-temperature-resistant vibrating mesh screen 8, and the high-frequency pulse airflow blown away can blow away the fly ash attached to the mesh holes of the high-temperature-resistant vibrating mesh screen 8, avoid mesh hole blockage, and ensure smooth passage of fly ash.

[0038] Nozzle angle fine tuner 5: drives the matrix type airflow nozzle 6 to rotate, periodically changes the blowing angle, and blows the fly ash attached to the mesh screen from different directions, so that the fly ash is more fully dispersed and the crushing effect is improved.

[0039] First pulse airflow valve 7: controls the airflow entering the matrix type airflow nozzle 6, realizes pulse air supply, enhances the impact of airflow on fly ash, and assists fly ash crushing.

[0040] (Five) non-sealed pneumatic assembly: as Figure 1 , Figure 3 , Figure 4 , Figure 5 , including second pulse airflow valve 9, fixed sleeve 14, and high-frequency air outlet pipe 16.

[0041] Fixed sleeve 14: fixedly connected with the edge area of the plurality of high-temperature-resistant vibrating screens 8, provides a mounting position for the high-frequency air outlet pipe 16, and drives the high-temperature-resistant vibrating screen 8 to vibrate when the high-frequency air outlet pipe 16 is air outlet.

[0042] High-frequency air outlet pipe 16: fixed to the inner wall of the downstream cavity 302 and movably inserted into the fixed sleeve 14, air outlet through the second pulse air flow valve 9, air outlet to the fixed sleeve 14. The air flow impact area 15 is formed between the air outlet end and the innermost area of the cavity of the fixed sleeve 14, and the impact force generated can push the high-temperature-resistant vibrating screen 8 to vibrate; the air flow leakage gap 17 is formed between the ring side and the ring side wall surface of the cavity of the fixed sleeve 14, which can ensure the normal flow of the air flow and avoid excessive pressure. The end face of the air outlet end is provided with a turbulent spherical surface 1601, which can change the direction of the air flow, enhance the disturbance of the air flow in the fixed sleeve 14, and improve the vibration effect.

[0043] Second pulse air flow valve 9: controls the air flow into the high-frequency air outlet pipe 16, outputs pulse air flow, drives the high-frequency air outlet pipe 16 to act, and then makes the high-temperature-resistant vibrating screen 8 vibrate to assist the fly ash crushing.

[0044] (Six) Elastic guide assembly: as Figure 3 , Figure 4 , including guide sleeve 11, guide rod 12, tension spring 13.

[0045] Guide sleeve 11: fixed to the inner wall of the upstream cavity 301, a plurality of equidistant distribution, provide guide for guide rod 12, ensure the stability of guide rod 12 in the sliding process.

[0046] Guide rod 12: slidingly connected with the guide sleeve 11, one end fixedly connected with the edge area of the high-temperature-resistant vibrating screen 8, under the limitation of the guide sleeve 11, slides with the vibration of the high-temperature-resistant vibrating screen 8.

[0047] Tension spring 13: sleeved on the guide rod 12, located between the guide sleeve 11 and the high-temperature-resistant vibrating screen 8. Under the action of the non-sealing pneumatic assembly, when the high-temperature-resistant vibrating screen 8 vibrates, the tension spring 13 plays a buffering and resetting role, so that the vibration of the high-temperature-resistant vibrating screen 8 is more stable, and when the non-sealing pneumatic assembly stops working, it helps the high-temperature-resistant vibrating screen 8 to return to the initial position.

[0048] Example two, the present application designs a dynamic fly ash pyrolysis treatment method, the specific working principle is as follows:

[0049] Link one, preliminary crushing: fly ash enters the preliminary crusher 2 through the ash inlet pipe 1, and the preliminary crusher 2 performs preliminary crushing treatment on the fly ash, breaks the large particle fly ash into smaller particles, reduces the difficulty of subsequent crushing, and improves the overall processing efficiency.

[0050] Link two, airflow blowing and vibration preparation: the primary broken fly ash into the upstream cavity 301 of the vibration crushing tube 3, the gas supply equipment 10 to the first pulse airflow valve 7 gas supply, the airflow controlled by the first pulse airflow valve 7 through the matrix airflow nozzle 6 gas to the upstream cavity 301 and high-temperature vibration screen 8 out. In this step, the airflow plays a role in blowing fly ash, on the other hand, for the operation of the subsequent nozzle angle fine tuner 5, so that the fly ash is in a state that can be multi-angle blowing.

[0051] Link three, multi-angle blowing: nozzle angle fine tuner 5 periodically drives matrix airflow nozzle 6 deflection, from different angles fly ash attached to the high-temperature vibration screen 8 blowing away from the mesh. Through multi-angle blowing, effectively avoid fly ash agglomeration, so that fly ash is more evenly distributed in the vibration crushing tube 3, improve the crushing effect, for the subsequent pyrolysis to provide more favorable conditions.

[0052] Link four, vibration crushing: gas supply equipment 10 to the second pulse airflow valve 9 gas supply, the second pulse airflow valve 9 to the non-sealed pneumatic assembly output pulse airflow, non-sealed pneumatic assembly in the high-frequency air outlet pipe 16 to the fixed sleeve 14 out of gas. High-temperature vibration screen 8 in the non-sealed pneumatic assembly, elastic guide assembly under the cooperation of vibration, vibration process, high-temperature vibration screen 8 of the broken triangle sharp 801 on the fly ash for further crushing, fly ash broken into smaller particles.

[0053] Link five, particle size adjustment and diffusion: due to the upstream cavity 301 fluid cross-sectional area is less than the downstream cavity 302, the upstream cavity 301 flow rate is relatively faster downstream cavity 302, fly ash through the high-temperature vibration screen 8 is broken and enters the downstream cavity 302. Fly ash into the downstream cavity 302 after moving speed decreases, diffusion effect increases, conducive to the subsequent pyrolysis reaction fully, ensure the efficiency and thoroughness of pyrolysis.

[0054] Link six, depth pyrolysis: fly ash in the downstream cavity 302 after sufficient diffusion, into the high-temperature pyrolysis assembly 4, high-temperature pyrolysis assembly 4 on the fly ash for depth pyrolysis, decomposition of harmful substances, realize the fly ash harmless and resource, complete the whole process of fly ash pyrolysis.

[0055] In summary, the dynamic fly ash pyrolysis furnace device and method through the multi-component work together, in the fly ash crushing and pyrolysis process play their respective role, effectively solve the problem of poor crushing effect, low pyrolysis efficiency in the traditional fly ash treatment method, has the remarkable environmental protection and economic significance.

[0056] Example three, the fly ash treatment equipment parameter scheme design, as follows:

[0057] (I) crushing system parameter matching

[0058] Primary crusher discharge size D1 > high temperature resistant vibrating screen mesh size D2 (ensure that particles not passing through the screen are secondary crushed).

[0059] Pyrolysis effective particle size D3 < D2 (pyrolysis efficiency is inversely proportional to particle size, D3 meets the pyrolysis contact area requirement).

[0060] High frequency pulse air flow kinetic energy Need to be greater than fly ash agglomeration force (ρ is the air flow density, v1 is the upstream cavity air flow velocity, A1 is the upstream cavity cross-sectional area, t is the pulse time).

[0061] Vibrating screen vibration kinetic energy Need to match the shear force required for fly ash crushing (k is the tension spring elastic coefficient, x is the vibration displacement).

[0062] (II) Relationship between air flow pressure and flow rate

[0063] Upstream cavity cross-sectional area A1 < downstream cavity cross-sectional area A2, meet v1 = v2·(A2 / A1) (continuity equation, v1 is the upstream flow rate, v2 is the downstream flow rate).

[0064] (III) Relationship between temperature and pyrolysis efficiency

[0065] Pyrolysis temperature T p > dioxin decomposition temperature (850℃) and < heavy metal volatilization temperature (1000℃ or above need to be controlled).

[0066] Fly ash residence time t p Meet t p ≥ t min (t min is the time required for complete decomposition of harmful substances, which is positively correlated with particle size D3).

[0067] (IV) Mechanical vibration parameters

[0068] Tension spring elastic coefficient k and vibrating screen mass m meet k = (2πf0) 2 m (natural frequency formula), where f0 is the natural frequency of the vibrating screen, the second pulse air valve frequency is close to the natural frequency f0 of the vibrating screen. Guide rod stroke L > vibration displacement x (ensure that the vibration is not stuck, L = 1.5x)

[0069] II. Specific parameter examples

[0070] (I) Crushing system parameters

[0071]

[0072] (II) Air flow pressure parameters

[0073]

[0074]

[0075] (Three) vibration and mechanical parameters

[0076]

[0077]

[0078] (Four) high-temperature pyrolysis assembly parameters

[0079]

[0080] (Five) material and coating parameters

[0081]

[0082] Through the above parameter design, the synergistic optimization of crushing efficiency, pyrolysis efficiency and equipment life is realized, and the environmental protection and resource treatment requirements are met.

[0083] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dynamic fly ash pyrolysis furnace device, comprising an ash inlet bottom pipe (1) and a preliminary crusher (2) connected to the ash inlet bottom pipe (1), characterized in that: The primary crusher (2) is equipped with a vibrating crushing tube (3) downstream. The vibrating crushing tube (3) is equipped with a high-temperature resistant vibrating screen (8). One end of the vibrating crushing tube (3) is equipped with a high-frequency pulse airflow assembly, and the other end of the vibrating crushing tube (3) is equipped with a high-temperature pyrolysis assembly (4). The vibrating crushing pipe (3) includes an upstream cavity (301) located on the upstream side of the high-temperature resistant vibrating screen (8) and a downstream cavity (302) located on the downstream side of the high-temperature resistant vibrating screen (8). The high-frequency pulse airflow assembly includes a matrix airflow nozzle (6) that discharges air toward the upstream cavity (301), a nozzle angle fine adjuster (5) that drives the matrix airflow nozzle (6) to rotate, and a first pulse airflow valve (7) that is connected to the matrix airflow nozzle (6) through an air pipe. The downstream cavity (302) of the vibratory breaking tube (3) is equipped with a plurality of equally spaced non-sealed pneumatic components, and the upstream cavity (301) of the vibratory breaking tube (3) is equipped with an elastic guide component that elastically cooperates with the non-sealed pneumatic components. The non-sealed pneumatic assembly includes a fixed sleeve (14) fixedly connected to the edge area of ​​multiple high-temperature vibrating screens (8), a high-frequency air outlet pipe (16) fixed to the inner wall of the downstream cavity (302) and movably inserted into the fixed sleeve (14), and a second pulse airflow valve (9) connected to the high-frequency air outlet pipe (16) through the air pipe; The first pulse airflow valve (7) and the second pulse airflow valve (9) are connected to the air supply equipment (10) via air pipes upstream.

2. The dynamic fly ash pyrolysis furnace device according to claim 1, characterized in that: The ring side of the high-temperature resistant vibrating screen (8) that contacts the inner wall of the vibrating crushing pipe (3) is coated with a phosphate coating.

3. The dynamic fly ash pyrolysis furnace device according to claim 1, characterized in that: The high-temperature resistant vibrating screen (8) has a crushing triangular tip (801) on the side of the ribs facing the upstream cavity (301).

4. The dynamic fly ash pyrolysis furnace device according to claim 1, characterized in that: The fluid cross-sectional area of ​​the upstream cavity (301) of the vibrating breaker tube (3) is smaller than that of the downstream cavity (302); The fluid cross-sectional area of ​​the downstream cavity (302) gradually increases from the high-temperature vibrating screen (8) to the high-temperature pyrolysis component (4).

5. The dynamic fly ash pyrolysis furnace device according to claim 1, characterized in that: An airflow impact area (15) is formed between the air outlet end of the high-frequency air outlet pipe (16) and the innermost region of the cavity of the fixed sleeve (14), and an airflow leakage gap (17) is formed between the circumferential side of the high-frequency air outlet pipe (16) and the circumferential side wall of the cavity of the fixed sleeve (14).

6. A dynamic fly ash pyrolysis furnace apparatus according to claim 1 or 5, characterized in that: The end face of the high-frequency air outlet pipe (16) is provided with a turbulence spherical surface (1601), and the innermost region wall of the fixed sleeve (14) is provided with an inner end spherical surface (1401) with a radial dimension larger than the turbulence spherical surface (1601).

7. The dynamic fly ash pyrolysis furnace device according to claim 1, characterized in that: The elastic guide assembly includes a plurality of equally spaced guide sleeves (11) fixed to the inner wall of the upstream cavity (301) and a guide rod (12) slidably connected to the guide sleeves (11). The guide rod (12) is fixedly connected to the edge area of ​​the high-temperature vibrating screen (8). The guide rod (12) is fitted with a tension spring (13) located between the guide sleeve (11) and the high-temperature vibrating screen (8).

8. A method for dynamic fly ash pyrolysis treatment, characterized in that, The dynamic fly ash pyrolysis furnace apparatus according to any one of claims 1 to 7 includes the following components: S1. Fly ash enters the primary crusher (2) through the bottom ash inlet pipe (1) and undergoes primary crushing treatment in the primary crusher (2); S2. The fly ash after preliminary crushing enters the upstream cavity (301) of the vibrating crushing pipe (3). The air supply device (10) supplies air to the first pulse airflow valve (7). The airflow controlled by the first pulse airflow valve (7) passes through the matrix airflow nozzle (6) and exits towards the upstream cavity (301) and the high-temperature vibrating screen (8). S3. The nozzle angle fine adjuster (5) periodically drives the matrix airflow nozzle (6) to deflect, blowing the fly ash attached to the high temperature vibrating screen (8) away from the mesh from different angles; S4. The gas supply device (10) supplies gas to the second pulse airflow valve (9), the second pulse airflow valve (9) outputs pulse airflow to the non-sealed pneumatic assembly, the high-frequency air outlet pipe (16) in the non-sealed pneumatic assembly outputs gas to the fixed sleeve (14), and the high-temperature resistant vibrating screen (8) vibrates under the cooperation of the non-sealed pneumatic assembly and the elastic guide assembly. S5. The cross-sectional area of ​​the fluid in the upstream cavity (301) is smaller than that in the downstream cavity (302), and the flow velocity in the upstream cavity (301) is faster than that in the downstream cavity (302). When the fly ash passes through the high-temperature vibrating screen (8), the fly ash is broken by the high-temperature vibrating screen (8) and enters the downstream cavity (302). The fly ash enters the downstream cavity (302), the fly ash moving speed decreases and the diffusion effect increases. S6. After the fly ash has fully diffused in the downstream cavity (302), it enters the high-temperature pyrolysis component (4). The high-temperature pyrolysis component (4) performs deep pyrolysis treatment on the fly ash, completing the entire process of fly ash pyrolysis.

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