A method for preparing annular ZSM-5 zeolite molecular sieve

Abstract

The invention provides a preparation method of an annular ZSM-5 zeolite molecular sieve, which relates to the technical field of molecular sieve preparation and specifically includes the following operating steps: S1: first, a phosphoric acid solution, di-n-butylamine, aluminum isopropoxide and zeolite are uniformly stirred, and then sodium silicate is added to obtain a uniform sol; S2: the treated sol is placed in a crystallization kettle, and then purified for 12-36 hours under a temperature environment of 50°C-200°C, and a molecular sieve seed is obtained after completion; S3: an aluminum source, a structure directing agent and silicon dioxide are added to deionized water, and stirred uniformly to obtain a gel; the invention can enhance the activity of the material during crystallization by a breaking plate, so that the material is heated uniformly, and the stirring rod uses a first spring to fit the pull rope with the inner wall of the storage tank when rotating, so as to remove the material adhered to the inner wall of the storage tank, avoid the material from adhering to the inner wall of the storage tank, so that the material can be quickly taken out of the application after purification, and the preparation efficiency of the method is accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of molecular sieve preparation, and in particular to a method for preparing annular ZSM-5 zeolite molecular sieve. Background Art

[0002] Molecular sieve is a material containing precise and single tiny pores that can be used to adsorb gases or liquids. Molecular sieves are usually composed of aluminosilicate minerals, and there are also synthetic mixtures or compounds. These compounds have an open structure that allows small molecules to diffuse. In the preparation process of molecular sieves, the material needs to be crystallized, where crystallization refers to the process of converting amorphous substances into crystals. In order to achieve crystallization, a crystallization kettle is usually used, such as a new type of crystallization kettle with application number 202021593291.7, which makes heating convenient and reliable, facilitates the collection of finished products, has a long service life, and improves reliability; including a base, a side frame, a rotating frame, a rotating shaft, a crystallization kettle, a handle, an electrical socket, a heating wire, a condensation tube bracket, a cover, an electronic valve, and a flexible connection. The through pipe, condensation pipe, control box and adjustment knob, the left and right sides of the middle of the top of the base are respectively connected to the bottom of a group of side frames, the middle of the left and right sides of the crystallization kettle are respectively connected to the inner ends of a group of rotating shafts, the top of the left side frame is connected to the bottom end of the condensation pipe bracket, the top of the condensation pipe bracket is connected to the middle side of the bottom of the condensation pipe, the middle of the top of the cover is connected to the bottom end of the electronic valve, the top of the electronic valve is connected to one end of the flexible connecting pipe, the other end of the flexible connecting pipe is connected to the right end of the condensation pipe, the inside of the top of the right side frame is connected to the inner end of the control box, and the front of the outer end of the control box is connected to the inner end of the adjustment knob;

[0003] However, before and after the use of the existing crystallization kettle, since the material takes a certain time to crystallize, part of the material will adhere to the inner wall of the crystallization kettle during the crystallization process, and the accumulation of material will cause the material to be heated unevenly, resulting in a difference in the crystallization effect. As a result, the crystallization effect of the material will be affected in this case, and it will also make it difficult to take out the crystallized material due to the accumulation of material. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a method for preparing annular ZSM-5 zeolite molecular sieves, which solves the problem that the material is not heated uniformly during the preparation of the molecular sieves, resulting in deviation in the crystallization effect.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A method for preparing annular ZSM-5 zeolite molecular sieve, specifically comprising the following steps:

[0007] S1: First, a phosphoric acid solution is uniformly stirred with di-n-butylamine, aluminum isopropoxide and zeolite, and then sodium silicate is added to obtain a uniform sol;

[0008] S2: placing the treated sol into a crystallization reactor, and then purifying it at a temperature of 50°C-200°C for 12-36 hours to obtain molecular sieve seed crystals;

[0009] S3: adding aluminum source, structure directing agent and silica into deionized water and stirring evenly to obtain a gel;

[0010] S4: stirring the current molecular sieve seed crystals and the gel for 3-6 hours, and adding a mineralizer during the stirring;

[0011] S5: Finally, the semi-finished product after stirring is taken out and filtered and separated, then dried by equipment, and then chemically treated with sodium hydroxide solution to obtain a molecular sieve.

[0012] Preferably, the crystallization kettle in step 2 includes a base and a storage tank, a sealed upper cover is provided above the storage tank, a pillar is fixedly installed at the lower end of the storage tank, the pillar is fixedly provided on the upper surface of the base, an extension column is rotatably provided inside the sealed upper cover, a plurality of stirring rods are provided on the body of the extension column, a second driving wheel is fixedly provided on the upper end of the extension column, a moving platform is provided on the upper surface of the base, an extension rod is provided on the upper end of the moving platform, and a motor for driving the extension column to rotate is fixedly provided on the upper end of the extension rod.

[0013] Preferably, a temperature insulating layer is provided inside the storage tank, a rotating seat is fixedly installed at the bottom of the storage tank, a guide boss is provided inside the rotating seat, and a plurality of L-shaped slots are provided at the edge of the upper end of the storage tank.

[0014] Preferably, a plurality of L-shaped inserts are fixedly installed around the lower surface of the sealing upper cover, and the L-shaped inserts are inserted and matched with corresponding L-shaped slots. A heat storage frame is fixedly installed around the upper surface of the sealing upper cover, and a sealing rotating hole is provided in the middle of the sealing upper cover, and an extension column is rotatably provided inside the sealing rotating hole.

[0015] Preferably, a matching seat for combining with a rotating seat is provided on the lower side of the extension column body, a main channel is opened inside the extension column, a plurality of secondary channels are opened outside the main channel, an expansion ring is provided on the upper side of the extension column body, and a sleeve rod is provided at the bottom of the extension column.

[0016] Preferably, an exchange port is provided inside the expansion ring, a plurality of columns are fixedly installed on the periphery of the exchange port, the exchange port is interconnected with the main channel, and a limited position swivel is integrally provided on the periphery of the expansion ring.

[0017] Preferably, the inner wall of the heat storage frame is provided with a rotating opening, and the rotating opening is rotatably matched with the limiting rotating ring. A partition plate is fixedly provided inside the heat storage frame, and connecting pipes are respectively provided on both sides of the heat storage frame. The connecting pipes on both sides are respectively fixedly connected to the first delivery pump and the second delivery pump.

[0018] Preferably, each group of stirring rods is fixedly mounted on the extension column body, and an extension heat exchange groove is provided inside the stirring rod body, and a heat transfer pipe is fixedly mounted between the extension heat exchange grooves, and the extension heat exchange grooves are connected to the secondary channel on the corresponding side;

[0019] The heat transfer tube body is provided with a plurality of rotating shafts, a breaking plate is fixedly installed on the rotating shaft body, a contraction groove is opened at the end of the stirring rod, a movable rod is movably arranged inside the contraction groove through a first spring, a pull rope is arranged between two corresponding ends of the movable rod, and the pull rope is in contact with the inner wall of the storage tank.

[0020] Preferably, a push rod is movably arranged inside the sleeve rod through a second spring, the push rod body is arranged in the rotating seat and the end of the push rod cooperates with the guide boss.

[0021] Preferably, a slide groove is provided inside the movable platform, a slider is slidably provided inside the slide groove, the upper end of the slider is fixedly connected to the extension rod, a mounting platform is fixedly installed on the upper end of the extension rod, a motor is fixedly installed on the upper surface of the mounting platform, a first driving wheel is fixedly installed on the output end of the motor, and a driving belt is provided between the first driving wheel and the second driving wheel;

[0022] A screw rod is rotatably arranged inside the slide groove, the screw rod body is threadably matched with the slider, and a knob is fixedly installed on the end of the screw rod.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In order to adjust the internal temperature of the storage tank, the first delivery pump and the second delivery pump are used to continuously change materials, so as to realize continuous heat exchange treatment in the present application and ensure the internal temperature of the storage tank. When the first delivery pump adds materials into the heat storage frame, the medium is drained into the exchange port under the rotation of the extension column and enters the main channel, so as to realize continuous entry of the medium;

[0025] The heat medium can enter the secondary channel through the main channel, and under the connection of the extended heat exchange groove, the heat can be extended to the heat transfer tube, so that the material can fully take out the heat contact during the stirring process. Compared with the existing equipment, the present application can ensure that the material can be evenly heated during crystallization, and prevent the material from agglomerating and causing uneven heating of the material, thereby ensuring the subsequent crystallization effect and making the subsequent molecular sieve better in quality during preparation.

[0026] 2. The scattering plate can enhance the activity of the material during crystallization, so that the material is heated evenly, and the stirring rod uses the first spring to fit the pull rope to the inner wall of the storage tank when rotating, so as to remove the material adhered to the inner wall of the storage tank, avoid the material from adhering to the inner wall of the storage tank, so that the material can be quickly taken out after purification, thereby accelerating the preparation efficiency of the method.

[0027] During crystallization, part of the material will sink to the bottom. In order to prevent the material from sinking to the bottom for a long time and causing the material to agglomerate, the sleeve rod is eccentrically set when the extension column rotates, so that the sleeve rod can cooperate with the guide boss to move, and then the top rod will regularly hit the bottom of the storage tank under the support of the second spring, causing the bottom material to vibrate, so that the bottom material will not agglomerate, and the material can be disrupted by cooperating with the scattering plate to ensure the subsequent crystallization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the base;

[0030] Figure 3 It is a top view structural diagram of the base;

[0031] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure of the cross section at AA in the middle;

[0032] Figure 5 It is a three-dimensional structural schematic diagram of a part of the structure of the present invention;

[0033] Figure 6 Is a schematic diagram of a top view of a portion of the structure of the present invention;

[0034] Figure 7 yes Figure 6 Schematic diagram of the three-dimensional structure of the cross section at BB;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the storage tank;

[0036] Fig. 9 It is a schematic diagram of the top view of the storage tank;

[0037] Fig.10 yes Fig. 9 Schematic diagram of the three-dimensional structure of the cross section at CC;

[0038] Fig.11 It is a schematic diagram of the three-dimensional structure of the sealing cover;

[0039] Fig.12 It is a schematic diagram of the top view of the sealing cover;

[0040] Fig.13 yes Fig.12 Schematic diagram of the three-dimensional structure of the cross section at DD;

[0041] Fig.14 yes Fig.13 A is an enlarged schematic diagram of the structure;

[0042] Fig.15 yes Fig.13 A schematic diagram of the structure is enlarged at B;

[0043] Fig.16 yes Fig.13 Enlarged structural diagram at point C in the middle.

[0044] In the figure: 1, base; 2, storage tank; 201, insulation layer; 202, rotating seat; 203, L-shaped slot; 204, guide boss; 3, pillar; 4, sealing cover; 401, extension column; 4011, matching seat; 4012, sleeve rod; 4013, main channel; 4014, secondary channel; 4015, top rod; 4016, second spring; 402, heat storage frame; 4021, connecting pipe; 4022, partition plate; 4023, rotating port; 403, second driving wheel; 404, stirring rod; 4041, extended heat exchange groove; 4042, heat transfer Tube; 4043, rotating shaft; 4044, breaking plate; 4045, contraction groove; 4046, first spring; 4047, movable rod; 4048, pull rope; 405, L-shaped insert; 406, sealing rotating hole; 407, expansion ring; 4071, exchange port; 4072, column; 4073, limit rotating ring; 5, moving platform; 501, slide groove; 502, screw rod; 503, slider; 504, knob; 6, extension rod; 7, mounting platform; 8, motor; 9, first driving wheel; 10, driving belt; 11, first delivery pump; 12, second delivery pump. DETAILED DESCRIPTION

[0045] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] like Figures 1 to 16 As shown, a method for preparing a ring-shaped ZSM-5 zeolite molecular sieve specifically comprises the following steps:

[0047] S1: First, a phosphoric acid solution is uniformly stirred with di-n-butylamine, aluminum isopropoxide and zeolite, and then sodium silicate is added to obtain a uniform sol;

[0048] S2: placing the treated sol into a crystallization reactor, and then purifying it at a temperature of 50°C-200°C for 12-36 hours to obtain molecular sieve seed crystals;

[0049] S3: adding aluminum source, structure directing agent and silica into deionized water and stirring evenly to obtain a gel;

[0050] S4: stirring the current molecular sieve seed crystals and the gel for 3-6 hours, and adding a mineralizer during the stirring;

[0051] S5: Finally, the semi-finished product after stirring is taken out and filtered and separated, then dried by equipment, and then chemically treated with sodium hydroxide solution to obtain a molecular sieve.

[0052] In this embodiment, the crystallization kettle in step 2 includes a base 1 and a storage tank 2, a sealed upper cover 4 is arranged above the storage tank 2, a pillar 3 is fixedly installed at the lower end of the storage tank 2, the pillar 3 is fixedly arranged on the upper surface of the base 1, an extension column 401 is rotatably arranged inside the sealed upper cover 4, a plurality of stirring rods 404 are arranged on the body of the extension column 401, a second driving wheel 403 is fixedly arranged on the upper end of the extension column 401, a moving platform 5 is arranged on the upper surface of the base 1, an extension rod 6 is arranged on the upper end of the moving platform 5, and a motor 8 for driving the extension column 401 to rotate is fixedly arranged on the upper end of the extension rod 6.

[0053] It should be noted that a temperature insulating layer 201 is provided inside the storage tank 2, a rotating seat 202 is fixedly installed at the bottom of the storage tank 2, a guide boss 204 is provided inside the rotating seat 202, and a plurality of L-shaped slots 203 are provided at the upper edge of the storage tank 2;

[0054] A plurality of L-shaped inserts 405 are fixedly installed around the lower surface of the sealing upper cover 4, and the L-shaped inserts 405 are inserted and matched with the corresponding L-shaped slots 203. A heat storage frame 402 is fixedly installed on the outer periphery of the upper surface of the sealing upper cover 4. A sealing rotation hole 406 is provided in the middle of the sealing upper cover 4, and an extension column 401 is rotatably provided inside the sealing rotation hole 406. The L-shaped inserts 405 provided under the sealing upper cover 4 can be matched with a plurality of L-shaped slots 203 provided at the upper edge of the storage tank 2, so that the operator can combine the sealing upper cover 4 with the storage tank 2 by himself, and then ensure that the sealing effect of the storage tank 2 is long-term stable and leak-free during crystallization without affecting the use of the personnel.

[0055] In the specific configuration, a matching seat 4011 for combining with the rotating seat 202 is provided at the lower side of the extension column 401, a main channel 4013 is provided inside the extension column 401, and a plurality of secondary channels 4014 are provided outside the main channel 4013. An expansion ring 407 is provided on the upper side of the extension column 401, and a sleeve rod 4012 is provided at the bottom of the extension column 401.

[0056] An exchange port 4071 is provided inside the expansion ring 407 , and a plurality of columns 4072 are fixedly installed on the periphery of the exchange port 4071 . The exchange port 4071 is interconnected with the main channel 4013 , and a limited rotation ring 4073 is integrally provided on the periphery of the expansion ring 407 .

[0057] It can be understood that in the present application, a rotating port 4023 is provided on the inner wall of the heat storage frame 402, and the rotating port 4023 is rotatably matched with the limiting rotating ring 4073. A partition plate 4022 is fixedly provided inside the heat storage frame 402, and connecting pipes 4021 are respectively provided on both sides of the heat storage frame 402, and the connecting pipes 4021 on both sides are respectively fixedly connected to the first delivery pump 11 and the second delivery pump 12. In order to adjust the internal temperature of the storage tank 2, the first delivery pump 11 and the second delivery pump 12 are used to perform continuous material exchange operations, so as to realize continuous heat exchange processing in the present application and ensure the internal temperature of the storage tank 2. When the first delivery pump 11 adds materials into the heat storage frame 402, the medium is drained into the exchange port 4071 under the rotation of the extension column 401, and enters the main channel 4013, so as to realize continuous entry of the medium.

[0058] Among them, each group of stirring rods 404 is fixedly installed on the column body of the extension column 401, and an extended heat exchange groove 4041 is opened inside the rod body of the stirring rod 404, and a heat transfer pipe 4042 is fixedly installed between the extended heat exchange grooves 4041, and the extended heat exchange grooves 4041 are connected to the secondary channel 4014 on the corresponding side; wherein the heat medium can enter the secondary channel 4014 through the main channel 4013, and under the connection of the extended heat exchange grooves 4041, the heat can be extended to the heat transfer pipe 4042, so that the material can fully take out the heat contact during the stirring process, and then compared with the existing equipment, the present application can ensure that the material can be subjected to uniform heat during crystallization, and prevent the material from agglomerating and causing the problem of uneven heating of the material, thereby ensuring the subsequent crystallization effect and making the subsequent molecular sieve better in quality during preparation.

[0059] The heat transfer tube 4042 is provided with a plurality of rotating shafts 4043, and a scattering plate 4044 is fixedly installed on the rotating shaft 4043. A contraction groove 4045 is provided at the end of the stirring rod 404, and a movable rod 4047 is movably provided inside the contraction groove 4045 through a first spring 4046. A pull rope 4048 is provided between the ends of two corresponding movable rods 4047, and the pull rope 4048 is fitted with the inner wall of the storage tank 2. The scattering plate 4044 can enhance the activity of the material during crystallization of the present application, so that the material is heated evenly, and the stirring rod 404 uses the first spring 4046 to fit the pull rope 4048 with the inner wall of the storage tank 2 when rotating, so as to remove the material adhering to the inner wall of the storage tank 2, and avoid the material adhering to the inner wall of the storage tank 2, so that the present application can quickly take out the material after purification, thereby accelerating the preparation efficiency of the present method.

[0060] In the specific setting, a push rod 4015 is movably arranged inside the sleeve rod 4012 through the second spring 4016, and the rod body of the push rod 4015 is arranged in the rotating seat 202 and the end of the push rod 4015 cooperates with the guide boss 204. During the crystallization, part of the material will sink to the bottom. In order to prevent the material from sinking to the bottom for a long time and causing the material to agglomerate, the sleeve rod 4012 is eccentrically arranged when the extension column 401 rotates, so that the sleeve rod 4012 can cooperate with the guide boss 204 to move, and then the push rod 4015 will regularly knock the bottom of the storage tank 2 under the support of the second spring 4016, so that the bottom material vibrates, so that the bottom material will not agglomerate, and the material can be disrupted by cooperating with the scattering plate 4044 to ensure the subsequent crystallization effect.

[0061] A slide groove 501 is arranged inside the movable platform 5, a slider 503 is slidingly arranged inside the slide groove 501, the upper end of the slider 503 is fixedly connected to the extension rod 6, a mounting platform 7 is fixedly installed on the upper end of the extension rod 6, a motor 8 is fixedly installed on the upper surface of the mounting platform 7, a first driving wheel 9 is fixedly installed on the output end of the motor 8, and a driving belt 10 is arranged between the first driving wheel 9 and the second driving wheel 403; by starting the motor 8, the first driving wheel 9 can be driven to rotate, and then the transmission is realized in the driving belt 10 so that the second driving wheel 403 drives the extension column 401 to rotate, thereby ensuring that the present application can break up and fully heat the internal materials.

[0062] A screw rod 502 is provided inside the chute 501 for rotation, and the shaft of the screw rod 502 is threadedly matched with the slider 503, and a knob 504 is fixedly installed at the end of the screw rod 502. The screw rod 502 can be rotated by using the knob 504, and the slider 503 can be moved inside the chute 501 by using the screw rod 502 and the slider 503, so that the extension rod 6 can be moved, so that the drive belt 10 provided between the first drive wheel 9 and the second drive wheel 403 can be quickly removed or installed, so that it is convenient for subsequent personnel to clean the storage tank 2, and it is also convenient to open the sealing upper cover 4 to take out the material. Compared with the direct drive storage tank 2 rotation, the present application can ensure the stability during crystallization.

[0063] When using the crystallization reactor in the present application, firstly, the material is placed in the storage tank 2, and then the sealing upper cover 4 is sealed and combined with the storage tank 2, and then the first delivery pump 11 is started to deliver the heat transfer medium to the heat storage frame 402 through the connecting pipe 4021, wherein the heat transfer medium can be a high-temperature liquid or a gas, and then the motor 8 is started with the driving belt 10 connected between the first driving wheel 9 and the second driving wheel 403, and the extension column 401 is driven to rotate, wherein the extension column 401 transfers the heat transfer medium to the main channel 4013 under the guidance of the expansion ring 407 during rotation, wherein the main channel 4013 can be set to be U-shaped or curved, and the heat transfer medium is transferred to the stirring rod 404 under the guidance of the secondary channel 4014;

[0064] In order to ensure that the heating effect of the material is uniform, the extension column 401 is rotated to drive a plurality of stirring rods 404 to stir, wherein the material is dispersed by a dispersing plate 4044 to avoid a large amount of agglomerated material, which leads to uneven heating, and the heat transfer pipe 4042 can heat the passing material during the rotation and dispersion, thereby enhancing the heating range of the present application;

[0065] In order to prevent the material from sticking to the inner wall of the storage tank 2, a first spring 4046 is arranged at the end of the stirring rod 404, so that the movable rod 4047 can be pushed outward, and the pull rope 4048 between the two movable rods 4047 is close to the inner wall of the storage tank 2, and the residual material on the inner wall is removed under the rotation of the extension column 401, so that the material will not stick to the inner wall of the storage tank 2, thereby facilitating the crystallization of the material and the subsequent removal of the material.

[0066] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A method for preparing annular ZSM-5 zeolite molecular sieve, characterized in that: The specific steps include the following: S1: First, a phosphoric acid solution is uniformly stirred with di-n-butylamine, aluminum isopropoxide and zeolite, and then sodium silicate is added to obtain a uniform sol; S2: placing the treated sol into a crystallization reactor, and then crystallizing it at a temperature of 50°C-200°C for 12-36 hours to obtain molecular sieve seed crystals; S3: adding aluminum source, structure directing agent and silica into deionized water and stirring evenly to obtain a gel; S4: stirring the current molecular sieve seed crystals and the gel for 3-6 hours, and adding a mineralizer during the stirring; S5: Finally, the semi-finished product after stirring is taken out and filtered and separated, then dried by equipment, and then chemically treated with sodium hydroxide solution to obtain a molecular sieve; The crystallization reactor in step 2 comprises a base (1) and a storage tank (2), a sealed upper cover (4) is arranged above the storage tank (2), a support (3) is fixedly installed at the lower end of the storage tank (2), and the support (3) is fixedly arranged on the upper surface of the base (1), an extension column (401) is rotatably arranged inside the sealed upper cover (4), a plurality of stirring rods (404) are arranged on the column body of the extension column (401), a second driving wheel (403) is fixedly arranged on the upper end of the extension column (401), a moving platform (5) is arranged on the upper surface of the moving platform (5), and an extension rod (6) is fixedly arranged on the upper end of the extension rod (6) for driving the extension column (401) to rotate; The storage tank (2) is provided with a thermal insulation layer (201) inside, a rotating seat (202) is fixedly installed at the bottom of the storage tank (2), a guide boss (204) is provided inside the rotating seat (202), a plurality of L-shaped slots (203) are provided at the edge of the upper end of the storage tank (2), a plurality of L-shaped inserts (405) are fixedly installed around the lower surface of the sealing upper cover (4), the L-shaped inserts (405) are inserted and matched with the corresponding L-shaped slots (203), a heat storage frame (402) is fixedly installed on the outer periphery of the upper surface of the sealing upper cover (4), a sealing rotation hole (406) is provided in the middle of the sealing upper cover (4), and an extension column (401) is rotatably provided inside the sealing rotation hole (406); A matching seat (4011) for combining with a rotating seat (202) is arranged at the lower side of the extension column (401); a main channel (4013) is provided inside the extension column (401); a plurality of secondary channels (4014) are provided outside the main channel (4013); an expansion ring (407) is arranged on the upper side of the extension column (401); and a sleeve rod (4012) is arranged at the bottom of the extension column (401); An exchange port (4071) is provided inside the expansion ring (407), a plurality of columns (4072) are fixedly installed on the periphery of the exchange port (4071), the exchange port (4071) is interconnected with the main channel (4013), a limit swivel ring (4073) is integrally provided on the periphery of the expansion ring (407), a rotating port (4023) is provided on the inner wall of the heat storage frame (402), the rotating port (4023) rotatably cooperates with the limit swivel ring (4073), a partition plate (4022) is fixedly provided inside the heat storage frame (402), connecting pipes (4021) are respectively provided on both sides of the heat storage frame (402), and the connecting pipes (4021) on both sides are respectively fixedly connected to a first delivery pump (11) and a second delivery pump (12).

2. The method for preparing a ring-shaped ZSM-5 zeolite molecular sieve according to claim 1, characterized in that: Each group of stirring rods (404) is fixedly mounted on the body of the extension column (401), and an extended heat exchange groove (4041) is provided inside the body of the stirring rod (404). A heat transfer pipe (4042) is fixedly mounted between the extended heat exchange grooves (4041), and the extended heat exchange grooves (4041) are connected to the secondary channel (4014) on the corresponding side; The heat transfer tube (4042) is provided with a plurality of rotating shafts (4043), and a scattering plate (4044) is fixedly mounted on the rotating shaft (4043). A contraction groove (4045) is provided at the end of the stirring rod (404), and a movable rod (4047) is movably provided inside the contraction groove (4045) via a first spring (4046). A pull rope (4048) is provided between two corresponding ends of the movable rod (4047), and the pull rope (4048) is in contact with the inner wall of the storage tank (2).

3. The method for preparing a ring-shaped ZSM-5 zeolite molecular sieve according to claim 1, characterized in that: A push rod (4015) is movably arranged inside the sleeve rod (4012) via a second spring (4016); the rod body of the push rod (4015) is arranged in the rotating seat (202) and the end of the push rod (4015) cooperates with the guide boss (204).

4. The method for preparing a ring-shaped ZSM-5 zeolite molecular sieve according to claim 1, characterized in that: The movable platform (5) is provided with a slide groove (501) inside, a slider (503) is slidably provided inside the slide groove (501), the upper end of the slider (503) is fixedly connected to the extension rod (6), the upper end of the extension rod (6) is fixedly mounted with a mounting platform (7), the upper surface of the mounting platform (7) is fixedly mounted with a motor (8), the output end of the motor (8) is fixedly mounted with a first driving wheel (9), and a driving belt (10) is provided between the first driving wheel (9) and the second driving wheel (403); A screw rod (502) is rotatably disposed inside the slide groove (501), the shaft of the screw rod (502) is threadably engaged with the slider (503), and a knob (504) is fixedly mounted on the end of the screw rod (502).

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