Hydrothermal crystallization reaction kettle of pure silicon CHA molecular sieve

Abstract

The utility model discloses a hydrothermal crystallization reaction kettle of a pure silicon CHA molecular sieve, which comprises a reaction kettle body and a plurality of feed pipes, the plurality of feed pipes are respectively arranged at the top of the reaction kettle body, one end part of the reaction kettle body is sleeved with a partial pressure ferrule, the outer wall of the partial pressure ferrule is provided with a plurality of triangular support plates, and the triangular support plates are arranged on the outer wall of the reaction kettle body. A pressure dividing ferrule is arranged at the bottom end of the reaction kettle body, two attaching plates are arranged at the bottom end of the pressure dividing ferrule, two compression-resistant rings are arranged outside the reaction kettle body, and a heat conduction ring is arranged at the bottoms of the two compression-resistant rings. The attaching plates, the compression-resistant rings, the heat conduction ring, a protection ring and an external force resisting sleeve are arranged, and the heat conduction ring is arranged at one end of the reaction kettle body in a sleeving mode; the two protective rings and the plurality of external-force-resistant sleeves are respectively distributed and arranged around the reaction kettle body, so that the phenomenon that the temperature of the reaction kettle body is high, so that aging and degradation of materials and sealing pieces are accelerated is avoided, the service life of the reaction kettle body can be prolonged through good heat dissipation, and the external-force-resistant sleeves are made of aluminum alloy materials and have certain hardness, so that the service life of the reaction kettle body is prolonged. The external force resistance of the reaction kettle body can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrothermal crystallization reactors, and particularly relates to a hydrothermal crystallization reactor for pure silicon CHA molecular sieve. Background Technique

[0002] Pure silicon CHA molecular sieve is a molecular sieve with a CHA structure, which is only composed of silicon, without aluminum and other metal ions. The prepared reaction solution is injected into the interior of the hydrothermal crystallization reactor, and then appropriate temperature and pressure conditions are set. Usually, the synthesis of CHA molecular sieve requires a high-temperature and high-pressure environment. After the crystallization reaction is completed, the reactor is slowly cooled to prevent the impact of sudden temperature drop on the crystals. The reactor is mainly used to accommodate reactants and carry out hydrothermal crystallization reactions.

[0003] When the reactor carries out hydrothermal crystallization reaction on pure silicon CHA molecular sieve, the temperature is relatively high, and the heat dissipation speed of the reactor shell is slow. Long-term high temperature may lead to the aging and degradation of the reactor shell material, affecting its mechanical properties and durability. It may also lead to the aging of the sealing material, resulting in leakage. The reactor being impacted may cause cracks in the shell, affecting its sealing performance. Therefore, it is particularly important to design a hydrothermal crystallization reactor for pure silicon CHA molecular sieve. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hydrothermal crystallization reactor for pure silicon CHA molecular sieve to solve the problems that long-term high temperature may lead to the aging and degradation of the reactor shell material and the reactor being impacted may cause cracks in the shell as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A hydrothermal crystallization reactor for pure silicon CHA molecular sieve, including a reactor body and a plurality of feed pipes. The plurality of feed pipes are respectively arranged at the top of the reactor body. One end of the reactor body is sleeved with a pressure-dividing collar. A plurality of triangular support plates are arranged on the outer wall of the pressure-dividing collar. Two fitting plates are arranged at the bottom end of the pressure-dividing collar. Two pressure-resistant rings are arranged outside the reactor body. A heat-conducting ring is arranged at the bottom of the two pressure-resistant rings. One end of the heat-conducting ring is sleeved with a heat-dissipating ring. Two protective rings are arranged outside the reactor body. A plurality of anti-external force sleeves are arranged outside the reactor body.

[0006] As a preferred technical scheme of the utility model, a blanking pipe is arranged on one side of the top of the reactor body. One side of each of the plurality of triangular support plates is fixedly connected to the outer wall of the pressure-dividing collar.

[0007] As a preferred technical scheme of the utility model, limiting holes are respectively opened on one side of the two pressure-resistant rings. Limiting strips are respectively arranged on one side of the two fitting plates.

[0008] As a preferred technical solution of the present utility model, one ends of the two limiting strips are respectively in threaded connection with the interiors of the two limiting holes, and the positions where the two pressure-resistant rings are arranged correspond to each other.

[0009] As a preferred technical solution of the present utility model, two L-shaped blocks are fixedly installed on the outer walls of the two pressure-resistant rings, and a plurality of reinforcing rib strips are arranged on the tops of the plurality of external force-resistant sleeves.

[0010] As a preferred technical solution of the present utility model, the bottoms of the four L-shaped blocks are respectively fixedly connected to the tops of the two protective rings, and the two ends of the plurality of reinforcing rib strips are respectively fixedly connected to the outer walls of the plurality of external force-resistant sleeves.

[0011] As a preferred technical solution of the present utility model, the heat-conducting ring is sleeved on one end of the reaction kettle body, and the diameter of the heat-dissipating ring is larger than that of the heat-conducting ring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For the hydrothermal crystallization reaction kettle of pure silicon CHA molecular sieve of the present utility model, by providing the fitting plate, pressure-resistant ring, heat-conducting ring, heat-dissipating ring, protective ring and external force-resistant sleeve, the heat-conducting ring is sleeved on one end of the reaction kettle body, the two protective rings and the plurality of external force-resistant sleeves are respectively distributed around the reaction kettle body. The heat-conducting ring is made of heat-conducting silica gel sheet, and the heat-dissipating ring is made of copper material. The heat-conducting ring can conduct heat from the outer shell of the reaction kettle body to the surface of the heat-dissipating ring, and the heat-dissipating ring can effectively disperse the transferred heat into the surrounding air, accelerating the heat dissipation speed of the reaction kettle body, avoiding the high temperature of the reaction kettle body from accelerating the aging and degradation of materials and seals, and good heat dissipation can extend the service life of the reaction kettle body. The external force-resistant sleeve is made of aluminum alloy material and has a certain hardness, which can enhance the external force resistance performance of the reaction kettle body.

[0014] 2. For the hydrothermal crystallization reaction kettle of pure silicon CHA molecular sieve of the present utility model, by providing the limiting strip, limiting hole, L-shaped block and reinforcing rib strip, after the two pressure-resistant rings respectively abut against one side of the two fitting plates, one ends of the two limiting strips are sequentially inserted into the interiors of the two limiting holes and are in threaded connection therewith, so as to limit and fix the pressure-dividing sleeve ring and the pressure-resistant ring, thus ensuring the firmness of the protective ring and the external force-resistant sleeve. The external force-resistant sleeves are connected to each other through a plurality of reinforcing rib strips, enhancing the stability of the external force-resistant sleeves. The pressure-resistant ring and the protective ring are fixed through two L-shaped blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present utility model;

[0016] Figure 2 is of the present utility modelFigure 1 Enlarged view at position A in the figure;

[0017] Figure 3 Side view structural schematic diagram of the present utility model;

[0018] Figure 4 Partial side view structural schematic diagram of the present utility model.

[0019] In the figure: 1, reaction kettle body; 2, feed pipe; 3, triangular support plate; 4, fitting plate; 5, limit strip; 6, compressive ring; 7, heat conduction ring; 8, heat dissipation ring; 9, limit hole; 10, L-shaped block; 11, protective ring; 12, reinforcing rib; 13, pressure dividing sleeve; 14, blanking pipe; 15, external force resistance sleeve. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution for a hydrothermal crystallization reactor of pure silicon CHA molecular sieve:

[0022] Embodiment 1:

[0023] As Figures 1-3 shown, a hydrothermal crystallization reactor of pure silicon CHA molecular sieve includes a reaction kettle body 1 and a plurality of feed pipes 2. The plurality of feed pipes 2 are respectively arranged at the top of the reaction kettle body 1. One end of the reaction kettle body 1 is sleeved with a pressure dividing sleeve 13. A plurality of triangular support plates 3 are arranged on the outer wall of the pressure dividing sleeve 13. Two fitting plates 4 are arranged at the bottom of the pressure dividing sleeve 13. Two compressive rings 6 are arranged outside the reaction kettle body 1. A heat conduction ring 7 is arranged at the bottom of the two compressive rings 6. One end of the heat conduction ring 7 is sleeved with a heat dissipation ring 8. Two protective rings 11 are arranged outside the reaction kettle body 1. A plurality of external force resistance sleeves 15 are arranged outside the reaction kettle body 1. The heat dissipation ring 8 can effectively disperse the transmitted heat into the surrounding air, accelerating the heat dissipation speed of the reaction kettle body 1, avoiding the high temperature of the reaction kettle body 1 from accelerating the aging and degradation of materials and seals, and good heat dissipation can extend the service life of the reaction kettle body 1. The external force resistance sleeve 15 is made of aluminum alloy material and has a certain hardness, which can enhance the external force resistance performance of the reaction kettle body 1.

[0024] Embodiment 2:

[0025] On the basis of Embodiment 1, as Figure 1And Figure 4 As shown, one end of each of the two limiting bars 5 is internally threadedly connected to the two limiting holes 9, the positions of the two compression rings 6 correspond to each other, the bottom ends of the four L-shaped blocks 10 are respectively fixedly connected to the top ends of the two protective rings 11, and both ends of the multiple reinforcing ribs 12 are respectively fixedly connected to the outer walls of the multiple external force-resistant sleeves 15. For a hydrothermal crystallization reactor of pure silicon CHA molecular sieve of the present utility model, by providing the limiting bars 5, the limiting holes 9, the L-shaped blocks 10 and the reinforcing ribs 12, after the two compression rings 6 respectively abut against one side of the two fitting plates 4, one end of each of the two limiting bars 5 is sequentially inserted into the interiors of the two limiting holes 9 and the two are threadedly connected, so as to limit and fix the pressure-dividing sleeve ring 13 and the compression ring 6.

[0026] Working principle: Pure silicon CHA zeolite is a zeolite with a CHA structure, composed only of silicon, without aluminum and other metal ions. The prepared reaction solution is injected into the interior of the reaction kettle body 1, and then appropriate temperature and pressure conditions are set. Usually, the synthesis of CHA zeolite requires a high-temperature and high-pressure environment. After the crystallization reaction is completed, the reaction kettle body 1 is slowly cooled to prevent the impact of sudden temperature drop on the crystals. The reaction kettle body 1 is mainly used to accommodate reactants and carry out hydrothermal crystallization reactions. When the reaction kettle body 1 conducts hydrothermal crystallization reactions on pure silicon CHA zeolite, the temperature is relatively high, and the heat dissipation rate of the reaction kettle body 1 is slow. Long-term high temperature may cause aging and degradation of the material of the reaction kettle body 1, affecting its mechanical properties and durability, and may also cause aging of the sealing material, resulting in leakage. Impact on the reaction kettle body 1 may cause cracks in the outer shell, affecting its sealing performance. Therefore, it is particularly important to design a hydrothermal crystallization reactor for pure silicon CHA zeolite. First, a heat conduction ring 7 can be sleeved on one end of the reaction kettle body 1 in advance. Two protective rings 11 and multiple anti-extrusion sleeves 15 are respectively arranged around the reaction kettle body 1. The heat conduction ring 7 is made of heat-conducting silica gel sheet, and the heat dissipation ring 8 is made of copper material. The heat conduction ring 7 can conduct heat from the outer shell of the reaction kettle body 1 to the surface of the heat dissipation ring 8. The heat dissipation ring 8 can effectively disperse the transferred heat into the surrounding air, accelerating the heat dissipation rate of the reaction kettle body 1, avoiding the acceleration of material and seal aging and degradation due to the high temperature of the reaction kettle body 1. Good heat dissipation can extend the service life of the reaction kettle body 1. The protective rings 11 and the anti-extrusion sleeves 15 are both made of aluminum alloy material and have a certain hardness. The mutual cooperation of the protective rings 11, the reinforcing rib strips 12 and the anti-extrusion sleeves 15 can protect the outer surface of the reaction kettle body 1, enhancing the anti-extrusion performance of the reaction kettle body 1 and avoiding the rupture of the reaction kettle body 1 when it is impacted. After two pressure-resistant rings 6 are respectively abutted against one side of two fitting plates 4, one end of two limiting strips 5 is sequentially inserted into the interiors of two limiting holes 9, and the two are threadedly connected, thereby limiting and fixing the pressure-dividing sleeve ring 13 and the pressure-resistant ring 6, which also ensures the firmness of the protective rings 11 and the anti-extrusion sleeves 15. The anti-extrusion sleeves 15 are connected to each other through multiple reinforcing rib strips 12, enhancing the stability of the anti-extrusion sleeves 15. The pressure-resistant ring 6 and the protective ring 11 are fixed through two L-shaped blocks 10.

[0027] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] In the present utility model, unless otherwise clearly defined and limited, for example, it may be fixedly connected, may also be detachably connected, or integrated; it may be mechanically connected, may also be electrically connected; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrothermal crystallization reactor for pure silicon CHA molecular sieve, comprising a reactor body (1) and a plurality of feed pipes (2), wherein the plurality of feed pipes (2) are respectively arranged at the top of the reactor body (1), characterized in that: A pressure dividing ring (13) is sleeved on one end of the reactor body (1), a plurality of triangular support plates (3) are arranged on the outer wall of the pressure dividing ring (13), two bonding plates (4) are arranged at the bottom end of the pressure dividing ring (13), two anti-pressure rings (6) are arranged on the outside of the reactor body (1), a heat conducting ring (7) is arranged at the bottom of the two anti-pressure rings (6), a heat dissipating ring (8) is sleeved on one end of the heat conducting ring (7), two protective rings (11) are arranged on the outside of the reactor body (1), and a plurality of anti-external force sleeves (15) are arranged on the outside of the reactor body (1).

2. The hydrothermal crystallization reactor of pure silicon CHA molecular sieve according to claim 1, characterized in that: A material drop pipe (14) is provided on one side of the top of the reactor body (1), and one side of a plurality of the triangular support plates (3) is respectively fixedly connected to the outer wall of the pressure dividing ring (13).

3. The hydrothermal crystallization reactor of pure silicon CHA molecular sieve according to claim 1, characterized in that: A limiting hole (9) is provided on one side of the two anti-pressure rings (6), and a limiting strip (5) is provided on one side of the two bonding plates (4).

4. A hydrothermal crystallization reactor for pure silicon CHA molecular sieve according to claim 3, characterized in that: One end of the two limiting strips (5) is respectively connected to the internal threads of the two limiting holes (9), and the positions of the two anti-pressure rings (6) are corresponding.

5. The hydrothermal crystallization reactor of pure silicon CHA molecular sieve according to claim 1, characterized in that: Two L-shaped blocks (10) are fixedly mounted on the outer walls of the two anti-compression rings (6), and a plurality of reinforcing ribs (12) are arranged on the tops of the plurality of anti-external force sleeves (15).

6. A hydrothermal crystallization reactor for pure silicon CHA molecular sieve according to claim 5, characterized in that: The bottom ends of the four L-shaped blocks (10) are respectively fixedly connected to the top ends of the two protective rings (11), and the two ends of the plurality of reinforcing ribs (12) are respectively fixedly connected to the outer walls of the plurality of external force resistance sleeves (15).

7. A hydrothermal crystallization reactor for pure silicon CHA molecular sieve according to claim 1, characterized in that: The heat conducting ring (7) is sleeved on one end of the reaction kettle body (1), and the diameter of the heat dissipation ring (8) is larger than the diameter of the heat conducting ring (7).

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