An activated carbon anoxic pyrolysis and steam regeneration device

Abstract

The application discloses an activated carbon anoxic pyrolysis and steam regeneration device and relates to the technical field of pyrolysis devices.The device comprises a desorption tank and steam injection pipes fixedly and equidistantly connected to the desorption tank, and further comprises annular injection pipelines fixedly connected to tail ends of the steam injection pipes and porous screen pipes fixedly and equidistantly connected to inner ring walls of the annular injection pipelines, wherein the steam injection pipes, the annular injection pipelines and the porous screen pipes are mutually penetrated.The air interlayer in the device can be used as an elastic buffer barrier, which can effectively absorb and disperse impact force when activated carbon particles are extruded due to sedimentation in a non-blowing-off stage, thereby reducing the direct hard impact of the activated carbon particles on the annular injection pipelines.The device not only reduces the probability of physical damage, such as deformation and cracking, of the pipelines due to continuous extrusion, but also delays the mechanical property attenuation of the pipeline material, such as avoiding the problems of strength reduction and toughness loss of the pipeline caused by long-term stress, thereby prolonging the service life of the annular injection pipelines and guaranteeing the stable steam injection function.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pyrolysis devices, in particular to an activated carbon anoxic pyrolysis and steam regeneration device. BACKGROUND

[0002] In the field of activated carbon pyrolysis regeneration treatment technology, the pipe arrangement and screen pipe structure design in the regeneration tank directly affect the regeneration efficiency and equipment service life. At present, the industry generally connects the pipe for steam injection with the branch outside the tank, and realizes the layered arrangement of the pipe along the circumferential direction of the tank wall through flanges, buckles and other fixing parts to form an annular pipe system. However, in actual operation, obvious defects are exposed: during the thermal regeneration process, the airflow temperature in the tank fluctuates violently, the pipe is significantly affected by the working hot airflow and expands and contracts, and the rigid fixing method of flanges, buckles and the like cannot offset the above deformation stress, resulting in a gap gradually formed between the pipe and the fixed structure; the existence of the gap causes the pipe to shake irregularly under the impact of the airflow, causing the steam injection position to deviate, and further causing the activated carbon in the tank to be unevenly heated, the stripping effect to be significantly different, and in severe cases, even the local carbon layer to be overheated and carbonized or not completely regenerated, greatly reducing the quality of activated carbon regeneration.

[0003] At the same time, the screen pipe in the regeneration tank, as the core component supporting the activated carbon layer, is subjected to complex mechanical load tests for a long time. The activated carbon forms a carbon layer in a stacked state, and the screen pipe needs to continuously bear the gravity load of the particles above; during the non-blowing stage (such as the pre-treatment heating and the later cooling process), the carbon layer lacks the upward lifting force of the steam airflow, the activated carbon particles naturally settle due to gravity, the gap between the particles decreases, and the extrusion force on the screen pipe significantly increases; during the blowing stage, the airflow lifting force temporarily relieves this pressure, forming a periodic load change; the existing screen pipe design is not optimized for this dynamic mechanical environment, and lacks effective buffer and stress dispersion structures, resulting in plastic deformation of the screen pipe under long-term periodic load; in the early stage of deformation, it is characterized by a change in screen hole size and a decrease in steam permeability efficiency, and as the deformation intensifies, serious faults such as screen pipe rupture and carbon layer collapse occur, which not only interrupts the regeneration process, but also causes the activated carbon particles to enter the steam pipe, resulting in system blockage, increasing equipment maintenance costs and downtime.

[0004] The design defects of the above-mentioned pipe fixing and screen pipe structure have become a key bottleneck restricting the stability and economy of activated carbon thermal regeneration technology, and need to be solved through technological innovation.

[0005] Therefore, the present application provides an activated carbon anoxic pyrolysis and steam regeneration device to solve the above problems. SUMMARY

[0006] Therefore, the present application provides an activated carbon anoxic pyrolysis and steam regeneration device to solve the above problems.

[0007] To achieve the above object, the present application provides the following technical solutions: an activated carbon anoxic pyrolysis and steam regeneration device, comprising a desorption tank and a steam injection pipe fixedly connected to the desorption tank at equal intervals, further comprising a ring-shaped injection pipe fixedly connected to the tail end of the steam injection pipe and a plurality of porous screen pipes fixedly connected to the inner wall of the ring-shaped injection pipe at equal intervals, the steam injection pipe, the ring-shaped injection pipe and the plurality of porous screen pipes being mutually penetrable;

[0008] Further comprising a first assembly arranged in the inner cavity of the desorption tank;

[0009] The first assembly comprises a barrier plate A slidably connected to the inner wall of the desorption tank, the bottom surface of the barrier plate A being fixedly connected with a damping ring A, the bottom end of the damping ring A being fixedly connected with a ring seat A, and the ring seat A being fixedly connected to the inner cavity wall of the desorption tank;

[0010] A support ring is fixedly connected to the ring-shaped injection pipe at equal intervals, and a high-temperature-resistant sleeve A is sleeved on the ring-shaped injection pipe through the support ring, and the ring-shaped injection pipe and the inner cavity of the high-temperature-resistant sleeve A jointly form an air sandwich layer;

[0011] A ring seat C is fixedly connected to the inner wall of the desorption tank, a damping ring B is fixedly connected in the groove of the ring seat C, a barrier plate B is fixedly connected to the lower surface of the damping ring B, and the barrier plate B is slidably connected to the inner cavity of the desorption tank;

[0012] A plurality of particle balls are fixedly connected to the barrier plate A at equal intervals;

[0013] A support grid plate is arranged below the first assembly and is fixedly connected to the bottom of the inner cavity of the desorption tank.

[0014] As an improvement, an inlet carbon pipe is fixedly connected to the top of the desorption tank in a penetrating manner, and a second assembly is arranged below the inlet carbon pipe;

[0015] The second assembly comprises a grid pipe body sleeved on the plurality of porous screen pipes, a high-temperature-resistant sleeve B sleeved on the grid pipe body, a ring-shaped reinforcing rib arranged at equal intervals on the high-temperature-resistant sleeve B, and a through hole formed in the ring-shaped reinforcing rib in a penetrating manner.

[0016] As an improvement, a transverse groove is formed in the ring-shaped reinforcing rib, and a spring A is fixedly connected to the inner wall of the transverse groove of the ring-shaped reinforcing rib;

[0017] The other end of the spring A is fixedly connected with a fin, and the fin is slidably arranged in the transverse groove of the ring-shaped reinforcing rib in a transverse direction.

[0018] As improved, the guide piece is fixedly connected with the barrier plate A at equal intervals, the inner cavity of the guide piece is slidably connected with a sliding piece, the upper and lower end faces of the sliding piece are fixedly connected with springs B, and the ends, away from the sliding piece, of the springs B are fixedly connected with the inner cavity wall of the guide piece.

[0019] The sliding piece is provided with a circular hole, and the sliding piece is sleeved on the porous screen pipe through the circular hole.

[0020] As improved, the material of the high-temperature-resistant sleeve A is ceramic fiber composite material.

[0021] As improved, the cross section of the annular reinforcing rib is T-shaped.

[0022] As improved, the annular reinforcing ribs fixed on the high-temperature-resistant sleeve B of each layer are aligned with the grid nodes of the grid pipe body.

[0023] As improved, the flange of the fin is an inclined surface.

[0024] Compared with the prior art, the active carbon anoxic pyrolysis and steam regeneration device has the following beneficial effects:

[0025] 1. The overall design of the first assembly can bring the following benefits:

[0026] Stability and reliability of the pipeline system: by limiting and fixing the annular injection pipeline between the ring seat A and the ring seat C, and by matching the high-temperature-resistant sleeve A with the support ring, the gap problem caused by thermal expansion and cold contraction can be effectively eliminated, and the gap caused by rigid fixation can be avoided, thus solving the problem of pipeline shaking from the root, ensuring the uniformity of heating and stripping, and ensuring that the active carbon in the tank is heated uniformly, the steam and the carbon layer are in full contact during the stripping process, and the problems of local overheating or incomplete regeneration are avoided, thus improving the regeneration quality and adsorption performance of the active carbon.

[0027] Resist the extrusion impact of particle settlement: during the non-stripping activation stage, such as the pretreatment and cooling process, the damping ring in the first assembly can provide additional support and protection for the pipeline, buffer and offset the extrusion force when the active carbon particles settle, prevent the pipeline from deforming or displacing due to external force, and ensure the structural integrity of the pipeline system.

[0028] 2. The air sandwich design can assist the first assembly in further optimization in view of the extrusion and thermal shock problems of the annular injection pipeline and fixed components during the active carbon thermal regeneration process, and the specific optimization is as follows:

[0029] Buffer external extrusion, protect the annular jet pipeline structure: air sandwich can be used as a flexible buffer barrier, when activated carbon particles are extruded during the non-blowing stage, it can effectively absorb and disperse the impact force, reduce the direct hard impact of activated carbon particles on the annular jet pipeline; this not only reduces the probability of physical damage such as deformation and cracking of the pipeline due to continuous extrusion, but also delays the mechanical property decay of the pipeline material, such as avoiding the problems of strength decline and loss of toughness caused by long-term stress, thereby prolonging the service life of the annular jet pipeline and ensuring its stable steam jet function;

[0030] Form a heat shield barrier to reduce the risk of thermal damage to fixed components: during thermal regeneration, high-temperature gas circulates in the desorption tank, and the air sandwich can block part of the heat transfer, reducing the direct heat impact of high temperature on the fixed components of the annular jet pipeline; it helps to reduce the material performance degradation of the fixed components due to long-term exposure to high temperature, such as avoiding accelerated oxidation, reduced hardness, and increased brittleness of metal fixed components due to high temperature, ensuring the connection strength and stability of the fixed components, and thus maintaining the overall structural stability of the annular pipeline system, reducing problems such as pipeline loosening and deviation caused by fixed component failure.

[0031] 3、The particle ball in the application is designed to solve the problem of pipeline impact caused by activated carbon particle settlement during the non-blowing stage. The convex structure achieves multidimensional optimization, with the following specific benefits:

[0032] Increase the friction between particles, slow down the settlement of activated carbon particles, and reduce the instantaneous impact on the pipeline: when the convex structure of the particle ball contacts the activated carbon particles, it can form more "occlusal points" than a flat structure, significantly increasing the friction and mechanical resistance between particles, hindering the rapid sliding of activated carbon particles under the action of gravity, and thus slowing down the settlement speed during the non-blowing stage. The more gradual settlement speed can effectively avoid the concentrated instantaneous pressure caused by rapid settlement, reduce the risk of deformation and cracking of the annular jet pipeline protected by the barrier due to sudden load, and protect the integrity of the pipeline structure.

[0033] Maintain stable particle gap, optimize system stress state, and reduce gap contraction amplitude: the convex structure can maintain the relative stability of the activated carbon particle gap during the non-blowing stage by enhancing the mutual support between particles, avoiding the rapid narrowing of the gap caused by tight particle packing, and the stable particle gap can reduce the final settlement distance of the activated carbon particles, making the overall height change of the particle layer more gradual, and effectively reducing the bearing load pressure of the barrier, reducing the lateral extrusion force on the annular jet pipeline.

[0034] 4、The cooperation of the grid pipe body and the annular reinforcing rib in the application can bring the following benefits:

[0035] Dispersing gravity load and protecting the structural integrity of the porous screen tube: The arc-shaped design of the annular reinforcing rib can evenly distribute the local gravity load of the activated carbon particles to a larger contact area, avoiding the concentration of load in a certain part; at the same time, the load is transferred to the entire grid tube body through the annular reinforcing rib, so that the force is not borne by a single screen tube, but by the whole structure, which greatly reduces the risk of bending and extrusion deformation of the porous screen tube due to long-term exposure to concentrated gravity.

[0036] 5. By designing the winglet's edge as a slope, this invention offers the following beneficial effects:

[0037] Reduced pressure and risk of structural damage: The sloping design expands the contact area between the vane and the activated carbon particles, allowing the particle gravity load and lateral extrusion pressure to be more evenly distributed on the vane surface. This directly reduces the deformation and cracking damage to the vane itself caused by long-term concentrated stress, extending the service life of the vane. At the same time, it can alleviate the compression of surrounding components by the activated carbon particles. That is, due to the reduced pressure per unit area, the interaction force between the activated carbon particles and the vane is gentler, which can reduce the indirect compression of surrounding components by the particles, avoid pipeline deformation or functional failure caused by excessive local pressure, and indirectly protect the structural integrity of the core components of the system. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of the desorption tank after cross-section in this invention;

[0039] Figure 2 This is a structural diagram of the main body of the present invention;

[0040] Figure 3 This is an exploded view of the main structure of the present invention;

[0041] Figure 4 This is a front view of the main structure of the desorption tank of the present invention after being cut open;

[0042] Figure 5 This is a structural diagram of the steam injection pipe, the first component, and the second component of the present invention;

[0043] Figure 6 This is a disassembled diagram of the first component of the present invention;

[0044] Figure 7 These are structural diagrams of the steam jet pipe, porous screen pipe, grid pipe body, and high-temperature resistant sleeve B of the present invention.

[0045] Figure 8 This is a cross-sectional view of the internal structure of the high-temperature resistant sleeve A of the present invention.

[0046] Figure 9 These are structural diagrams of the porous screen tube, grid tube body, high-temperature resistant sleeve B, annular reinforcing rib, and winglets in this invention.

[0047] Figure 10 For the second component of the application related structure diagram;

[0048] Figure 11 For the application of a plurality of regeneration tank heat regeneration device distribution diagram.

[0049] In the figure:

[0050] 1, desorption tank; 2, carbon inlet pipe; 3, support grid plate; 4, steam injection pipe; 5, annular injection pipe; 6, porous screen pipe;

[0051] 7, the first component; 701, barrier plate A; 702, damping ring A; 703, ring seat A; 704, high temperature resistant sleeve; 705, support ring; 706, air sandwich; 707, barrier plate B; 708, damping ring B; 709, ring seat C; 710, particle ball;

[0052] 8, the second component; 801, grid pipe body; 802, sleeve; 803, annular reinforcing rib; 804, through hole; 805, spring A; 806, fin; 807, guide piece; 808, sliding piece; 809, spring B. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the application.

[0054] The application will be described in further detail below according to the drawings and embodiments.

[0055] EMBODIMENT

[0056] Please refer to Figures 1 to 5 、 Figure 8 、 Figure 11 as shown:

[0057] To solve the problems mentioned in the technical solutions, the application embodiment provides an activated carbon anoxic pyrolysis and steam regeneration device, which comprises a desorption tank 1 and a steam injection pipe 4 fixedly connected at equal intervals on the desorption tank 1, and further comprises an annular injection pipe 5 fixedly connected to the tail end of the steam injection pipe 4 and a porous screen pipe 6 fixedly connected at equal intervals on the inner ring wall of the annular injection pipe 5, the steam injection pipe 4, the annular injection pipe 5 and the porous screen pipe 6 being mutually penetrated;

[0058] Further comprising a first assembly 7 arranged in the inner cavity of the desorption tank 1; the first assembly 7 comprises a blocking plate A701 slidably connected to the inner wall of the desorption tank 1, the bottom surface of the blocking plate A701 is fixedly connected with a damping ring A702, the bottom end of the damping ring A702 is fixedly connected with a ring seat A703, and the ring seat A703 is fixedly connected to the inner cavity wall of the desorption tank 1; a support ring 705 is equidistantly sleeved on the annular jet pipeline 5, the annular jet pipeline 5 is sleeved with a high-temperature-resistant sleeve A704 through the support ring 705, and the annular jet pipeline 5 and the inner cavity of the high-temperature-resistant sleeve A704 jointly form an air sandwich layer 706; a ring seat C709 is fixedly connected to the inner wall of the desorption tank 1, a damping ring B708 is fixedly connected in the groove of the ring seat C709, a blocking plate B707 is fixedly connected to the lower surface of the damping ring B708, and the blocking plate B707 is slidably connected to the inner cavity of the desorption tank 1; a particle ball 710 is equidistantly fixedly connected to the blocking plate A701; a support grid plate 3 is arranged below the first assembly 7 and is fixedly connected to the bottom of the inner cavity of the desorption tank 1.

[0059] Wherein:

[0060] The desorption tank 1 is provided with equipment connecting pipelines such as cooling water pipes and auxiliary conveying pipes.

[0061] The carbon inlet pipe 2 is used for conveying the activated carbon.

[0062] The annular jet pipeline 5 can be adaptively perforated according to the use condition; and the number can be increased or decreased.

[0063] The steam jet pipe 4, the annular jet pipeline 5 and the porous screen pipe 6 jointly form a steam conveying unit, in use, the annular jet pipeline 5 and the porous screen pipe 6 between units can be communicated through the steam jet branch, and a reserved mounting groove of a related component in the device can be used.

[0064] The first assembly 7 is used for the blow-off activation stage and the non-blow-off activation stage, guarantees the installation and fixation of the pipeline, and avoids extrusion deformation of the pipeline caused by thermal expansion and contraction and the settlement of activated carbon particles in the non-gas lifting state.

[0065] The blocking plate A701, the damping ring A702 and the ring seat A703 form a group, the blocking plate B707, the damping ring B708 and the ring seat C709 form a group, and the two groups jointly provide support for protection.

[0066] The high-temperature-resistant sleeve A704 is made of ceramic fiber composite material.

[0067] The buffer interlayer can form a buffer barrier, reduce the direct impact of external extrusion on the annular jet pipeline 5, and reduce the mechanical property attenuation of the material caused by extrusion.

[0068] The blocking plate and the damping ring reduce the periodic pressure impact on the pipeline by controlling the settlement and gap change of the activated carbon layer.

[0069] The elastic deformation gaps of the damping ring A 702 and the damping ring B 708 are staggered.

[0070] The convex structure of the particle ball 710 is different from the flat structure, which can increase the friction between the particle ball and the activated carbon particles, maintain the relative stability of the particle gap, slow down the settling speed of the activated carbon particles in the non-blowing stage, and then indirectly reduce the instantaneous impact force on the high-temperature sleeve A 704 of the annular jet pipeline 5; and the convex structure can increase the friction between the particles, maintain the relative stability of the particle gap, and shorten the settling distance.

[0071] Further embodiments: please refer to Figure 2 、 Figures 5 to 10 as shown:

[0072] Further including a carbon inlet pipe 2 fixedly connected through the top of the desorption tank 1, and a second assembly 8 arranged below the carbon inlet pipe 2; the second assembly 8 includes a grid pipe body 801 sleeved on the perforated screen pipe 6, a high-temperature-resistant sleeve B 802 sleeved on the grid pipe body 801, annular reinforcing ribs 803 arranged equidistantly around the high-temperature-resistant sleeve B 802, through holes 804 opened through the annular reinforcing ribs 803, transverse grooves opened in the annular reinforcing ribs 803, and springs A 805 fixedly connected to the inner walls of the transverse grooves of the annular reinforcing ribs 803.

[0073] The barrier plate A 701 is fixedly connected with guide fins 807 at equal intervals, the guide fins 807 are slidably connected with sliding fins 808, the sliding fins 808 are fixedly connected with springs B 809 at the upper and lower end faces, and the ends of the springs B 809 away from the sliding fins 808 are fixedly connected to the inner cavity walls of the guide fins 807; the sliding fins 808 are provided with circular holes, and the sliding fins 808 are sleeved on the perforated screen pipe 6 through the circular holes.

[0074] Among them:

[0075] The second assembly 8 is used to alleviate the extrusion deformation of the pipeline caused by the activated carbon particles settling without gas lifting.

[0076] The grid pipe body 801 can be arranged in a cross / chevron shape.

[0077] The cross-sectional surface of the annular reinforcing rib 803 is T-shaped.

[0078] The through hole 804 is provided with a protective net, which can avoid the activated carbon particles from entering the perforated screen pipe 6 through the through hole 804 in the non-blowing process.

[0079] The annular reinforcing rib 803 fixed on the high-temperature-resistant sleeve B802 is aligned with the grid nodes of the grid pipe body 801 to form a three-dimensional support frame.

[0080] The annular reinforcing rib 803 and the grid pipe body 801 form a “point-line-surface” combined rigid support system, which improves the anti-deformation ability of the screen pipe.

[0081] The through hole 804 coincides with the steam outlet hole on the porous screen pipe 6.

[0082] The flange of the fin 806 is inclined, which can increase the contact area with the activated carbon particles and reduce the unit area pressure.

[0083] The guide fin 807, the sliding fin 808, and the spring B 809 are used to assist the stable movement of the blocking plate.

[0084] It should be noted that the annular injection pipeline 5 and the porous screen pipe 6 both adopt a double-sleeve structure to reduce thermal stress and structural damage caused by extrusion, thereby prolonging the service life of the pipe body.

[0085] The working principle of all the above embodiments is as follows:

[0086] The working process of the first assembly 7 is as follows:

[0087] During use of the device, first, the annular injection pipeline 5 is protected by the high-temperature-resistant sleeve A 704 with the assistance of the support ring 705. Even if the high-temperature-resistant sleeve A 704 is deformed under pressure, the air layer 706 can provide a moving pressure buffer redundancy to support the protection of the annular injection pipeline 5.

[0088] Further, the high-temperature-resistant sleeve A 704 limited by the blocking plate A 701, the ring seat C 709, and the guide fin 807 will be protected on a fixed basis with the assistance of the damping ring A 702, the ring seat A 703, and the damping ring B 708, the ring seat C 709, to further maintain the fixing effect.

[0089] Specifically, the working process of the damping ring A 702 and the ring seat A 703 is described as follows: when the activated carbon particles press the blocking plate A 701, the damping ring A 702 on the ring seat A 703 will be protected by deformation to avoid the extrusion of the activated carbon sediment on the high-temperature-resistant sleeve A 704 that limits the annular injection pipeline 5, thereby ensuring the relative position of the annular injection pipeline 5 in the desorption tank 1.

[0090] Further, the convex structure of the particle ball 710 is different from the flat structure, which can increase the friction between the particle ball and the activated carbon particles, maintain the relative stability of the particle gap, slow down the settling speed of the activated carbon particles in the non-blowing stage, and indirectly reduce the instantaneous impact force on the high-temperature sleeve A704 of the annular jet pipeline 5; again, the relative position of the annular jet pipeline 5 in the desorption tank 1 is ensured.

[0091] The above working process is described with reference to Figures 1 to 5 , Figure 8 , Figure 11 .

[0092] The working process of the second assembly 8 is as follows:

[0093] In use, in the prior art, the activated carbon particles in the desorption tank 1 will extrude the porous screen pipe 6 during settling. In this design, as the activated carbon particles settle, the activated carbon particles will first contact and exert a settling force on the annular reinforcing rib 803 of the high-temperature sleeve B 802. At this time, the force will be partially gravity load divided under the design of the arc surface of the annular reinforcing rib 803, that is, the contact area is expanded, the pressure is reduced, and the load is concentrated in a certain part. At the same time, as known, the annular reinforcing rib 803 fixed on each layer of high-temperature sleeve B 802 is aligned with the grid nodes of the grid pipe body 801, and cooperates to form a three-dimensional support frame. At this time, the load will be further transmitted to the entire grid pipe body 801 through the annular reinforcing rib 803, so that the force acting on the single screen pipe is changed to the common load bearing of the overall structure, which is different from the prior art in which the activated carbon particles directly contact the porous screen pipe 6, greatly reducing the risk of bending and extrusion deformation of the porous screen pipe 6 due to long-term bearing of concentrated gravity;

[0094] Further, when the activated carbon particles in the desorption tank 1 extrude the annular reinforcing rib 803, part of the activated carbon particles will act on the inclined surface of the wing 806 sliding in the annular reinforcing rib 803. The design of the inclined surface expands the contact area between the wing 806 and the activated carbon particles, so that the particle gravity load and the lateral extrusion force are more evenly distributed on the wing 806, which directly reduces the deformation, cracking and other damage of the wing 806 due to long-term bearing of concentrated stress, prolonging the service life of the wing 806;

[0095] It should be noted that, in order to ensure that the presence of the porous screen pipe 6 does not affect the movement of the blocking plate A 701 in the first assembly 7, guide pieces 807, sliding pieces 808 and springs B 809 are added for assistance. During the entire process, the sliding piece 808 is stationary; and further, the guide piece 807 and the sliding piece 808 in the second assembly 8 will guide the blocking plate A 701 during movement, ensuring the stability of the movement of the blocking plate A 701.

[0096] The above working process is described with reference toFigure 2 、 Figures 5 to 10 .

[0097] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify a subject or action, without necessarily requiring or implying any actual such relationship or order between such subjects or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0098] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous further modifications and changes can be apparent to one skilled in the art without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An activated carbon anoxic pyrolysis and steam regeneration apparatus comprising: The desorption tank (1) and the steam injection pipe (4) fixedly connected to the desorption tank (1) are characterized in that further comprising: the annular injection pipe (5) fixedly connected to the tail end of the steam injection pipe (4) and the porous screen pipe (6) fixedly connected to the inner wall of the annular injection pipe (5) at equal intervals, and the steam injection pipe (4), the annular injection pipe (5) and the porous screen pipe (6) are mutually penetrated; Further comprising the first assembly (7) arranged in the inner cavity of the desorption tank (1); The first assembly (7) comprises the blocking plate A (701) slidably connected to the inner wall of the desorption tank (1), the damping ring A (702) fixedly connected to the bottom surface of the blocking plate A (701), the ring seat A (703) fixedly connected to the bottom end of the damping ring A (702), and the ring seat A (703) fixedly connected to the inner cavity wall of the desorption tank (1); The annular injection pipe (5) is sleeved with the support ring (705) at equal intervals, the annular injection pipe (5) is sleeved with the high-temperature-resistant sleeve A (704) through the support ring (705), and the annular injection pipe (5) and the inner cavity of the high-temperature-resistant sleeve A (704) jointly form the air sandwich layer (706); The desorption tank (1) is fixedly connected with the ring seat C (709), the damping ring B (708) is fixedly connected in the groove of the ring seat C (709), the blocking plate B (707) is fixedly connected to the lower surface of the damping ring B (708), and the blocking plate B (707) is slidably connected to the inner cavity of the desorption tank (1); The particle ball (710) is fixedly connected to the blocking plate A (701) at equal intervals; The first assembly (7) is provided below the support grid plate (3) fixedly connected to the bottom of the inner cavity of the desorption tank (1); Further comprising the carbon inlet pipe (2) fixedly connected to the top of the desorption tank (1) in a penetrating manner, and the second assembly (8) arranged below the carbon inlet pipe (2); The second assembly (8) comprises the grid pipe body (801) sleeved on the porous screen pipe (6), the high-temperature-resistant sleeve B (802) sleeved on the grid pipe body (801), the annular reinforcing rib (803) arranged on the high-temperature-resistant sleeve B (802) at equal intervals, and the through hole (804) penetratingly arranged on the annular reinforcing rib (803); The guiding piece (807) is fixedly connected to the blocking plate A (701) at equal intervals, the sliding piece (808) is slidably connected to the inner cavity of the guiding piece (807), the spring B (809) is fixedly connected to the upper and lower end surfaces of the sliding piece (808), and one end of the spring B (809) away from the sliding piece (808) is fixedly connected to the inner cavity wall of the guiding piece (807); The sliding piece (808) is sleeved on the porous screen pipe (6) through the circular hole.

2. The activated carbon anoxic pyrolysis and steam regeneration device according to claim 1, characterized in that: The annular reinforcing rib (803) is provided with a transverse slot, and a spring A (805) is fixedly connected to the inner wall of the transverse slot of the annular reinforcing rib (803); the other end of the spring A (805) is fixedly connected with a wing (806), and the wing (806) slides transversely in the transverse slot of the annular reinforcing rib (803).

3. The activated carbon anoxic pyrolysis and steam regeneration device according to claim 1, characterized in that: The high-temperature-resistant sleeve A (704) is made of ceramic fiber composite material.

4. The activated carbon anoxic pyrolysis and steam regeneration device according to claim 1, characterized in that: The cross section of the annular reinforcing rib (803) is T-shaped.

5. The activated carbon anoxic pyrolysis and steam regeneration device according to claim 1, characterized in that: The annular reinforcing rib (803) fixed on the high-temperature-resistant sleeve B (802) of each layer is aligned with the grid nodes of the grid pipe body (801).

6. The activated carbon anoxic pyrolysis and steam regeneration device according to claim 2, characterized in that: The flange of the wing (806) is a slope.

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