Reaction kettle bottom supporting structure and reaction kettle

Abstract

The utility model relates to the field of supporting devices in stirring equipment, and discloses a reaction kettle bottom supporting structure and a reaction kettle, which comprise a bracket (1), a bottom tile (2) and a stirring shaft (3). The bracket is fixed at the bottom in the reaction kettle. The bottom tile is installed on the support and provided with a through hole (20) extending in a penetrating mode, the bottom tile further comprises at least two surrounding plates (21) arranged on the top face of the bottom tile, and the surrounding plates are arranged around the through hole. The stirring shaft is rotatably mounted to the through hole, the part, penetrating through the through hole, of the stirring shaft is sleeved with a bushing (31), the stirring shaft is connected with a sealing cover (32), and the sealing cover is provided with at least one sealing cover extending part (321) which extends into the gap between the two adjacent surrounding plates and surrounds the stirring shaft. When the reaction kettle runs, the stirring shaft drives the extending part of the sealing cover to rotate, and the surrounding plate and the extending part of the sealing cover which extends into the gap of the surrounding plate and rotates can form labyrinth seal, so that solid-phase materials in the reaction kettle cannot enter the gap between the bushing and the bottom tile, and the abrasion of the bushing is reduced.

Description

Technical Field

[0001] The utility model relates to the field of internal supporting devices of stirring equipment, and in particular to a bottom supporting structure of a reactor. On this basis, the utility model also relates to a reactor comprising the bottom supporting structure of the reactor. Background Art

[0002] Reactors are a type of equipment widely used in industrial production, primarily for conducting physical or chemical reactions between various materials. Reactors can provide suitable conditions for the reaction process and are therefore widely used in various industrial production processes that require reactions. In some reactors, a stirring shaft is provided in order to meet the requirements of the production process. The stirring shaft is usually fixed and limited by a fixing device at the top and / or bottom of the reactor, and a paddle is provided in the middle portion to stir the materials in the reactor. A bottom support structure provided at the bottom of the reactor is usually used to limit the stirring shaft in the reactor.

[0003] In the actual application of the reactor, in order to adapt to the impact load, the stirring shaft often adopts a single-span shaft form to enhance the operating stability of the entire device. However, the bottom support structure of the stirring shaft will be worn during operation, which will affect the stable operation of the stirring shaft. Replacing the worn parts in the bottom support structure requires the entire reactor to be shut down, which affects the long-term operation of the reactor. The bottom support of the single-span stirring shaft is usually used in conjunction with the stirring shaft, bottom wall and sleeve. The sleeve is prone to wear during operation and needs to be replaced frequently. Replacing the sleeve requires the entire reactor to be shut down and the bottom support structure to be disassembled. Frequent replacement of the sleeve will lead to a decrease in the efficiency of the process links of the reactor. Therefore, there is a need for a reactor bottom support structure that can reduce the wear of the sleeve and thus reduce the number of sleeve replacements. Utility Model Content

[0004] The wear of the sleeve on the stirring shaft in the reactor is usually due to the gap between the sleeve and the bottom wall of the stirring shaft. The solid phase material in the reactor enters the gap, causing the rotating sleeve to be rubbed and worn. Therefore, the technical problem solved by the present invention is how to provide a reactor bottom support structure that can prevent solid phase material from entering the gap between the sleeve and the bottom wall, thereby reducing the degree of sleeve wear.

[0005] In order to solve the above-mentioned technical problems, the first aspect of the present invention provides a bottom support structure of a reactor, which includes a bracket, a bottom tile and a stirring shaft. The bracket is fixedly installed at the bottom of the reactor. The bottom tile is installed on the bracket and is provided with a through hole extending therethrough. The bottom tile also includes at least two enclosures arranged on the top surface of the bottom tile, and the enclosures are arranged around the through hole. The stirring shaft is rotatably mounted to the through hole, and a shaft liner is provided on the portion passing through the through hole. A sealing cover is connected to the stirring shaft, and the sealing cover has at least one sealing cover extension portion extending into the gap between two adjacent enclosures and surrounding the stirring shaft.

[0006] Preferably, the stirring shaft is detachably connected to the bushing.

[0007] Preferably, there is a gap between the sealing cover and the surrounding plate, and there is a gap between the sealing cover extension and the top surface of the bottom tile.

[0008] Preferably, the enclosing plate and the extended portion of the sealing cover form a labyrinth channel, and the labyrinth channel is filled with incompressible liquid.

[0009] Preferably, the bottom tile is further connected to a receiving groove, which extends through the bottom tile and defines a through hole.

[0010] Preferably, a bottom cavity is provided on the bottom surface of the bottom tile, the bottom cavity is sleeved on the bottom of the accommodating tank, and one end of the stirring shaft passes through the through hole and extends into the bottom cavity.

[0011] Preferably, the accommodating groove further includes a shaft sleeve, which is sleeved on the outside of the shaft liner to rotatably fit with the shaft liner.

[0012] Preferably, the shaft sleeve is fixedly disposed in the accommodating groove, and the shaft liner can rotate relative to the shaft sleeve.

[0013] Preferably, the shaft sleeve and / or the shaft liner are made of self-lubricating material.

[0014] The second aspect of the present invention further provides a reactor, which comprises the above-mentioned reactor bottom support structure.

[0015] The bottom tile of the reactor bottom support structure provided by the present invention is provided with at least two enclosures and a sealing cover extension that can extend into the middle of the enclosures. When the agitator shaft rotates, the sealing cover connected to the agitator shaft rotates, and the bottom tile and the enclosure on the bottom tile are fixed to the bracket. The sealing cover extension, whose end extends to the middle of the enclosure, is driven by the agitator shaft and rotates relative to the enclosure, thereby forming a labyrinth seal for the agitator shaft surrounded by the enclosure, the contact portion of the shaft liner, and the bottom tile. This ensures that solid-phase materials in the reactor do not enter the gap between the shaft liner and the bottom tile, thereby ensuring that the shaft liner is not worn due to solid-phase materials getting stuck in the gap, reducing the frequency of reactor maintenance and thereby improving the industrial production efficiency of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the bottom tile in one embodiment of the utility model.

[0019] Description of Reference Numerals

[0020] 1. Bracket; 2. Bottom tile; 20. Through hole; 21. Enclosure; 22. Receiving groove; 221. Bushing; 23. Bottom cavity; 3. Agitator shaft; 31. Bushing; 32. Sealing cover; 321. Sealing cover extension. DETAILED DESCRIPTION

[0021] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0022] The present disclosure provides these embodiments in order to make this disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0023] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. "Include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0024] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0025] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0026] The technical problem solved by the utility model is how to provide a reactor bottom support structure which can prevent solid phase materials from entering the gap between the shaft sleeve and the bottom wall, thereby reducing the degree of wear of the shaft sleeve.

[0027] In order to solve the above technical problems, the first aspect of the present invention provides a reactor bottom support structure, such as Figure 1 and Figure 2 As shown, it includes a bracket 1, a bottom tile 2 and a stirring shaft 3. The bracket 1 is fixedly installed at the bottom of the reactor. The bottom tile 2 is installed on the bracket 1 and is provided with a through hole 20 extending therethrough. The bottom tile 2 also includes at least two enclosures 21 provided on the top surface of the bottom tile 2, and the enclosures 21 are provided around the through hole 20. The stirring shaft 3 is rotatably mounted to the through hole 20, and a shaft liner 31 is provided on the portion passing through the through hole 20. A sealing cover 32 is connected to the stirring shaft 3, and the sealing cover 32 has at least one sealing cover extension 321 extending into the gap between two adjacent enclosures and surrounding the stirring shaft 3.

[0028] The bottom tile 2 of the reactor bottom support structure provided by the present invention is provided with at least two enclosures 21 and a sealing cover extension 321 that can extend into the middle of the enclosure 21. When the stirring shaft 3 rotates, the sealing cover 32 connected to the stirring shaft 3 rotates, and the bottom tile 2 and the enclosure 21 on the bottom tile 2 are fixed to the bracket 1. The sealing cover extension 321, the end of which extends to the middle of the enclosure 21, is driven by the stirring shaft 3 and rotates relative to the enclosure 21, thereby forming a labyrinth seal for the stirring shaft 3 surrounded by the enclosure 21, the contact portion of the shaft liner 31 and the bottom tile 2, and ensuring that the solid phase material in the reactor does not enter the gap between the shaft liner 31 and the bottom tile 2, thereby ensuring that the shaft liner 31 will not be worn due to the solid phase material being stuck in the gap, reducing the frequency of replacing the shaft liner 31, and thereby improving the industrial production efficiency of the reactor.

[0029] In the reactor bottom support structure provided by the present invention, the bushing 31 contacts the bottom shoe 2 during the rotation of the agitator shaft 3. The bottom shoe 2 and the through-hole 20 therein limit the agitator shaft 3 by limiting the bushing 31. The bushing 31 is subject to wear during the contact and friction with the bottom shoe 2. By using the bushing 31 to protect the agitator shaft 3 from wear, only the bushing 31 can be replaced during maintenance and replacement without replacing the agitator shaft 3, thereby reducing replacement costs and time.

[0030] In the reactor bottom support structure provided by the present invention, a greater number of panels 21 and a greater number of sealing cover extensions 321 can form a more complex maze structure, thereby achieving a tighter maze seal. Under varying environmental conditions within the reactor, the number of panels 21 and sealing cover extensions 321 can be selected based on the desired sealing level in the central portion of the reactor bottom support structure to accommodate varying environmental conditions associated with different reactions within the reactor.

[0031] Preferably, if Figure 1 As shown, the sealing cover 32 is detachably mounted on the stirring shaft 3 so that it can be easily and quickly removed and replaced during maintenance. Further preferably, the sealing cover 32 is detachably mounted on the stirring shaft 3 by fastening bolts.

[0032] Preferably, if Figure 1 As shown, the bottom tile 2 is detachably mounted on the bracket 1 so that it can be easily and quickly removed and replaced during maintenance. Further preferably, the bottom tile 2 is detachably mounted on the bracket 1 by fastening bolts.

[0033] Preferably, if Figure 1 As shown, the stirring shaft 3 is detachably connected to the shaft liner 31 so that the shaft liner 31 can be easily and quickly removed and replaced during maintenance. Further preferably, the shaft liner 31 is detachably mounted on the stirring shaft 3 by fastening bolts.

[0034] Preferably, if Figure 1 As shown, there is a gap between the sealing cover 32 and the enclosure 21, and a gap between the sealing cover extension 321 and the top surface of the bottom tile 2. When the agitator shaft 3 rotates, the sealing cover 32 and its sealing cover extension 321 are driven to rotate without contact with the enclosure 21 or the bottom tile 2, ensuring that the sealing cover 32 and its sealing cover extension 321 can rotate without frictional resistance. At the same time, the gap between the sealing cover extension 321 and the enclosure 21 creates a labyrinth seal at the contact point between the shaft liner 31 and the bottom tile 2, preventing solid materials from being drawn into the gap between the shaft liner 31 and the bottom tile 2.

[0035] Preferably, if Figure 1As shown, the enclosure 21 and the sealing cover extension 321 form a labyrinthine channel, which is filled with an incompressible liquid. The incompressible liquid is pure water or other liquid that does not contain solid phase materials. By pre-filling the liquid, the labyrinthine channel can be effectively sealed. By filling the labyrinthine channel with the incompressible liquid, the space within the labyrinthine channel can be completely filled, and the liquid in the labyrinthine channel will not be compressed due to the pressure in the reactor, which would cause the liquid in the reactor containing solid phase materials to enter the labyrinthine channel and then enter the gap between the shaft liner 31 and the bottom wall 2.

[0036] Preferably, if Figure 1 As shown, the bottom tile 2 is further connected to a receiving groove 22, which extends through the bottom tile 2 and defines a through hole 20. The receiving groove 22 and the through hole 20 formed at the bottom thereof provide additional space surrounding the agitator shaft 3, thereby allowing more components for limiting the agitator shaft 3 to be arranged in the receiving groove 22, and the through hole 20 assisting in limiting the agitator shaft 3.

[0037] Preferably, if Figure 1 As shown, the bottom tile 2 further includes a bottom cavity 23 disposed on the bottom surface of the bottom tile 2. The bottom cavity 23 is sleeved on the bottom of the receiving groove 22. One end of the stirring shaft 3 passes through the through hole 20 and extends into the bottom cavity 23. When the bottom support structure of the reactor is installed, the end of the stirring shaft 3 extending from the bottom surface of the bottom tile 2 is sealed within the bottom cavity 23, thereby preventing the solid phase material in the reactor from entering the gap between the bottom tile 2 and the shaft liner 31 from the bottom surface of the bottom tile 2.

[0038] Preferably, if Figure 1 As shown, the receiving groove 22 also includes a sleeve 221, which is sleeved on the outside of the shaft liner 31 to rotatably fit with the shaft liner 31. Further preferably, the sleeve 221 is detachably fixed in the receiving groove 22. By sleeved with the sleeve 221, the rotating shaft liner 31 can be limited, thereby limiting the stirring shaft 3. Secondly, the sleeve 221 as a limiting member effectively expands the contact area between the shaft liner 31 and the limiting member, so that when the stirring shaft 3 is subjected to forces from all directions during stirring, a better limiting effect can be achieved on the stirring shaft 3.

[0039] Preferably, if Figure 1As shown, the shaft sleeve 221 is fixedly disposed in the receiving groove 22, and the shaft liner 31 can rotate relative to the shaft sleeve 221. The shaft sleeve 221 fixed in the receiving groove 22 ensures that the shaft sleeve 221 will not rotate relative to the receiving groove 22, thereby wearing out the contact surface between the shaft sleeve 221 and the receiving groove 22 and requiring replacement of the entire bottom tile 2. The shaft sleeve 221 and the shaft liner 31 are rotatably fitted together, which can ensure that the agitator shaft 3 rotates and stirs smoothly while ensuring that the shaft liner 31 contacts and rubs against the shaft sleeve 221 rather than other parts on the bottom tile 2, so that the only parts that are worn are the shaft liner 31 and the shaft sleeve 221, rather than the agitator shaft 3 and the bottom tile 2. Since both the shaft liner 31 and the shaft sleeve 221 use a detachable connection method, they can be easily and quickly replaced when they are worn.

[0040] Preferably, the shaft sleeve 221 and / or the shaft liner 31 are made of a self-lubricating material. Further preferably, the shaft sleeve 221 and / or the shaft liner 31 are made of polytetrafluoroethylene. By using self-lubricating materials, the shaft sleeve 221 and the shaft liner 31 can operate normally in the reactor bottom support device using a liquid labyrinth seal without the need for additional liquid lubrication.

[0041] The second aspect of the present invention further provides a reactor, which comprises the above-mentioned reactor bottom support structure.

[0042] Preferably, the stirring shaft 3 in the reactor is hoisted on the top of the reactor. In the reactor, the hoisted stirring shaft 3 is limited by the reactor bottom support structure and rotates in the reactor to stir the contents of the reactor. Due to the use of the reactor bottom support structure of the present invention, the reactor does not need to be frequently shut down and the shaft liner 31 in the reactor bottom support structure is replaced. Compared with the reactor in the prior art, the efficiency of the reactor in the industrial process can be improved by reducing the number of shutdowns, while also saving the material cost of the shaft liner 31 and the labor cost of replacing the shaft liner 31.

[0043] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here. At the same time, within the scope of the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including combining various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will no longer separately describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the scope of protection of the present invention.

Claims

1. A reactor bottom support structure, characterized in that: include: A bracket (1), wherein the bracket (1) is fixedly mounted on the bottom of the reactor; A bottom tile (2), the bottom tile (2) being mounted on the bracket (1) and provided with a through hole (20) extending therethrough, the bottom tile (2) further comprising at least two enclosures (21) arranged on the top surface of the bottom tile (2), the enclosures (21) being arranged around the through hole (20); and, A stirring shaft (3) is rotatably mounted to the through hole (20), and a shaft liner (31) is sleeved on the portion passing through the through hole (20); a sealing cover (32) is connected to the stirring shaft (3), and the sealing cover (32) has at least one sealing cover extension portion (321) extending into a gap between two adjacent enclosures (21) and surrounding the stirring shaft (3).

2. The reactor bottom support structure according to claim 1, characterized in that: The stirring shaft (3) is detachably connected to the shaft bushing (31).

3. The reactor bottom support structure according to claim 1, characterized in that: There is a gap between the sealing cover (32) and the enclosure (21), and there is a gap between the sealing cover extension (321) and the top surface of the bottom tile (2).

4. The reactor bottom support structure according to claim 1, characterized in that: The enclosure plate (21) and the sealing cover extension portion (321) form a labyrinth channel, and the labyrinth channel is filled with incompressible liquid.

5. The reactor bottom support structure according to claim 1, characterized in that: The bottom tile (2) is also connected to a receiving groove (22), which extends through the bottom tile (2) and defines the through hole (20).

6. The reactor bottom support structure according to claim 5, characterized in that: A bottom cavity (23) is provided on the bottom surface of the bottom tile (2), and the bottom cavity (23) is sleeved on the bottom of the receiving groove (22). One end of the stirring shaft (3) passes through the through hole (20) and extends into the bottom cavity (23).

7. The reactor bottom support structure according to claim 5, characterized in that: The accommodating groove (22) further includes a shaft sleeve (221), and the shaft sleeve (221) is sleeved on the outside of the shaft liner (31) to rotatably fit with the shaft liner (31).

8. The reactor bottom support structure according to claim 7, characterized in that: The shaft sleeve (221) is fixedly disposed in the accommodating groove (22), and the shaft liner (31) is rotatable relative to the shaft sleeve (221).

9. The reactor bottom support structure according to claim 8, characterized in that: The shaft sleeve (221) and / or the shaft liner (31) are made of self-lubricating material.

10. A reactor, characterized in that: The invention comprises the reactor bottom support structure according to any one of claims 1 to 9.

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