A reactor bottom supporting and discharging structure

Abstract

This invention provides a bottom-supported discharge structure for a reactor, belonging to the field of mechanical technology. It solves the problem that the support structure and discharge port of existing reactors are separately and independently configured. The reactor includes a vessel body with a mounting hole at the bottom. The discharge support structure includes a support base located in the mounting hole and sealed and fixedly connected to the vessel body. The top of the support base has a support part for supporting the reactor's stirring shaft, and the bottom of the support base has a fixing part for fixing a discharge valve. The support base has a discharge hole for connecting the inner cavity of the reactor body to the discharge valve. This bottom-supported discharge structure for the reactor has the advantages of integrating the support structure and discharge port into one unit and facilitating the installation of the discharge support structure.

Description

Technical Field

[0001] This invention belongs to the field of mechanical technology and relates to a bottom support structure for material discharge in a reaction vessel. Background Technology

[0002] In the chemical and pharmaceutical industries, materials need to be placed in a reaction vessel for stirring, mixing, and reaction during the production and processing process. A stirring shaft is required during stirring, and a support structure is set at the bottom of the reaction vessel to support the stirring shaft. After the material processing is completed, the liquid needs to be discharged from the reaction vessel, and a discharge structure is set at the bottom of the reaction vessel.

[0003] Existing support and discharge structures, such as the sealed coaxial dual-speed stirred reactor disclosed in Chinese patent literature [Application No.: 201911020280.1; Authorization Announcement No.: CN110624490A], include a reactor body, with a feed inlet at the top and a discharge outlet at the bottom. The reactor body contains a coaxial outer shaft and an inner shaft that are nested together. A high-speed motor is connected to the upper end of the inner shaft, and a reducer is connected to the upper end of the outer shaft. The reducer is connected to a low-speed motor. A disperser is connected to the lower end of the inner shaft, and a stirring paddle is connected to the lower end of the outer shaft. A double-end mechanical seal is provided at the top of the reactor body to seal the gap between the outer shaft and the reactor body, and a dual-speed mechanical seal is provided at the top of the outer shaft to seal the gap between it and the inner shaft.

[0004] This type of reactor has a discharge port at the bottom, connected to a discharge valve to control the discharge of the liquid. The bottom of the reactor's inner cavity has a lower jacket, a support base, and a support tube. The support base is fixed to the bottom wall of the reactor body through the support tube. The lower jacket is set on the support base for the bottom of the inner shaft to pass through. The lower jacket, support base, and support tube cooperate to support the inner shaft, allowing the inner shaft to be axially positioned in the reactor body. That is, in this type of reactor, the support structure for supporting the inner shaft and the discharge port are set separately and independently. The support structure is installed inside the reactor body, which is troublesome to install. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the prior art by proposing a bottom support discharge structure for a reactor. The technical problem solved is how to integrate the support structure and the discharge port into one unit, and how to make the support discharge structure easy to install.

[0006] The objective of this invention can be achieved through the following technical solution: a bottom support discharge structure for a reactor, the reactor comprising a vessel body having a mounting hole at the bottom, characterized in that the support discharge structure includes a support base located in the mounting hole and sealed and fixedly connected to the vessel body, the top of the support base having a support portion for supporting the reactor stirring shaft, the bottom of the support base having a fixing portion for fixing a discharge valve, and the support base having a discharge hole for connecting the inner cavity of the vessel body and the discharge valve.

[0007] The bottom of the vessel has mounting holes, and a support base is fixedly connected to these holes. The support portion of the support base provides support and axial positioning for the stirring shaft. Simultaneously, the discharge port in the support base allows the liquid inside the vessel cavity to be discharged to the outside through a discharge valve. In other words, this support-discharge structure integrates the support structure and the discharge port into one unit; only the support base needs to be fixed to the mounting holes. Furthermore, it can be installed externally to the vessel body, making installation convenient. Moreover, the support-discharge structure is located at the bottom of the vessel body, minimizing its space occupation within the vessel cavity.

[0008] In the aforementioned bottom support and discharge structure of a reactor, the support portion has a recessed support groove for the bottom of the stirring shaft to pass through. The discharge hole penetrates the bottom of the support groove, connecting the discharge hole to the support groove. The support groove allows the bottom of the stirring shaft to pass through, enabling the support portion to support and axially position the stirring shaft. The connection between the support groove and the discharge hole allows the liquid inside the reactor to effectively lubricate the bushing, bearing, or other components at the bottom of the stirring shaft, reducing friction. It also facilitates better flow of the liquid in the support groove to the discharge hole, promoting complete discharge.

[0009] In the aforementioned bottom support and discharge structure of a reactor, there is an annular stepped surface between the support groove and the discharge hole. The stepped surface serves as a support, ensuring that the support can support and axially position the stirring shaft.

[0010] In the aforementioned bottom support and discharge structure of a reactor, the discharge port includes a main hole located inside the support base and several branch holes located on the side of the support base. The main hole penetrates through the bottom of the support base, and the outer ends of the branch holes communicate with the inner cavity of the reactor body, while their inner ends communicate with the main hole. This structure, with its rational arrangement of the discharge port positions, allows the liquid inside the reactor body to be discharged more effectively through the discharge port. Simultaneously, it makes the structure of the support base more rational, ensuring that the support base has both smooth liquid drainage and sufficient strength.

[0011] In the aforementioned bottom support structure for a reactor, the support hole is located vertically below the bottom wall of the reactor body. This structure ensures that the liquid in the reactor cavity can be completely drained.

[0012] In the aforementioned bottom-supported discharge structure of a reaction vessel, the bottom wall of the vessel body is arc-shaped, and the support base is located in the middle of the bottom of the vessel body. This structure ensures that the liquid in the inner cavity of the vessel can be completely drained and corresponds to the position of the stirring shaft.

[0013] In the aforementioned bottom support structure for a reactor, the support portion is located inside the reactor cavity and above the bottom wall of the reactor body, while the fixing portion is located outside the reactor body and below the bottom wall of the reactor body. This efficient use of space allows for a more rational positioning of the support base, enabling better connection between the stirring shaft and the discharge valve.

[0014] In the aforementioned bottom support discharge structure of a reactor, the support discharge structure further includes an annular bottom flange. The longitudinal section of the support base is inverted T-shaped. The bottom flange passes through a mounting hole, and its circumferential edge is sealed and fixedly connected to the hole wall. The support portion of the support base passes through the bottom flange and is located within the reactor body. The fixing portion of the support base abuts against the bottom flange and is sealed and fixedly connected to it. The discharge hole communicates with the internal cavity of the reactor body through a transition cavity within the bottom flange. The bottom flange is first fixedly connected to the reactor body. The bottom flange design allows for a more reasonable position of the support base, ensuring its positional accuracy. Simultaneously, the bottom flange bears some of the force, resulting in a high degree of stability in the support base installation and improving the overall stability of the support discharge structure.

[0015] In the aforementioned bottom support discharge structure of the reactor, the top surface of the bottom flange smoothly transitions to the bottom wall of the reactor body. The top surface of the bottom flange is either flush with the bottom wall of the reactor body in the vertical direction or located below the bottom wall of the reactor body in the vertical direction. This structure allows for better discharge of the liquid from the reactor cavity, ensuring complete drainage.

[0016] In the aforementioned bottom support and discharge structure of the reactor, the wall of the transition chamber is inclined, and the transition chamber is flared towards the inner cavity of the reactor. This structure allows the liquid in the inner cavity of the reactor to flow more effectively to the discharge port, ensuring that the liquid is completely discharged.

[0017] Compared with the prior art, the bottom support structure for the discharge of a reactor provided by the present invention has the following advantages:

[0018] 1. This support discharge structure integrates the support structure of the stirring shaft and the discharge port of the liquid into one unit. It can be installed on the outside of the vessel body, making the support discharge structure easy to install, and the support discharge structure will not occupy too much space in the inner cavity of the vessel body.

[0019] 2. The bottom flange of this support discharge structure bears part of the force, reducing the force on the support base, making the support base more secure, and improving the overall stability of the support discharge structure.

[0020] 3. The support groove and discharge hole of this support structure are connected, so that the liquid in the vessel can provide good lubrication to the bushing, bearing or bearing at the bottom of the stirring shaft, reduce friction, and at the same time facilitate the liquid in the support groove to flow to the discharge hole, so as to facilitate the liquid to be discharged. Attached Figure Description

[0021] Figure 1 This is a diagram showing the state of the supporting discharge structure when it is located at the bottom of the reactor.

[0022] Figure 2 This is a schematic diagram of the overall structure of the material discharge support.

[0023] Figure 3 This is a schematic diagram of the overall structure of the support base for the material discharge structure.

[0024] Figure 4 This is a schematic diagram of the overall structure of the bottom flange of the material discharge support structure.

[0025] In the figure, 1 is the vessel body; 11 is the mounting hole; 2 is the support base; 21 is the support part; 211 is the support groove; 212 is the stepped surface; 22 is the fixing part; 23 is the discharge hole; 231 is the main hole; 232 is the branch hole; 3 is the stirring shaft; 4 is the discharge valve; 5 is the bottom flange; 51 is the transition cavity. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figure 1 As shown, the reactor includes a vessel body 1, a stirring shaft 3, a discharge valve 4, and a supporting discharge structure. The bottom wall of the vessel body 1 is arc-shaped, and the supporting discharge structure is located in the middle of the bottom of the vessel body 1. The supporting discharge structure includes a support base 2 and a bottom flange 5.

[0028] like Figure 2 , Figure 3 , Figure 4 As shown, the longitudinal section of the support base 2 is inverted T-shaped. The support base 2 includes a support part 21 at the top, a fixing part 22 at the bottom, and a discharge hole 23 in the support base 2. The bottom of the vessel body 1 has a mounting hole 11. The bottom flange 5 passes through the mounting hole 11 and the circumferential edge of the bottom flange 5 is sealed and fixed to the hole wall of the mounting hole 11. The top surface of the bottom flange 5 smoothly transitions with the bottom wall of the vessel body 1. In this embodiment, the top surface of the bottom flange 5 is located below the bottom wall of the vessel body 1 in the vertical direction. In actual production, the top surface of the bottom flange 5 is flush with the bottom wall of the vessel body 1 in the vertical direction.

[0029] The support portion 21 of the support base 2 passes through the transition cavity 51 of the bottom flange 5 and is located in the vessel body 1. The fixing portion 22 of the support base 2 abuts against the bottom flange 5 and is sealed and fixedly connected to the bottom flange 5. The support portion 21 is located in the inner cavity of the vessel body 1 and is located above the bottom wall of the vessel body 1. The fixing portion 22 is located outside the vessel body 1 and is located below the bottom wall of the vessel body 1. The discharge valve 4 is fixedly connected to the bottom of the fixing portion 22. The cavity wall of the transition cavity 51 is inclined and the transition cavity 51 is flared towards the inner cavity of the vessel body 1.

[0030] The discharge port 23 includes a main hole 231 located inside the support base 2 and a support hole 232 located on the side of the support base 2. The main hole 231 penetrates the bottom of the support base 2. The outer end of the support hole 232 is connected to the inner cavity of the vessel body 1, and the inner end is connected to the main hole 231. The support hole 232 is located below the bottom wall of the vessel body 1 in the vertical direction. In this embodiment, there are two support holes 232 and they are symmetrically arranged. In actual production, there can be four or six support holes 232. The support holes 232 are evenly spaced.

[0031] The support part 21 has a recessed support groove 211 for the bottom of the stirring shaft 3 to pass through. The main hole 231 passes through the bottom of the support groove 211 to connect the discharge hole 23 with the support groove 211. There is an annular stepped surface 212 between the support groove 211 and the discharge hole 23.

[0032] During stirring, the discharge valve 4 is closed, and the stirring shaft 3 stirs the liquid. During discharge, the discharge valve 4 is opened, and the liquid in the inner cavity of the vessel body 1 flows to the outside through the transition cavity 51, the branch hole 232, the main hole 231, and the discharge valve 4.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0034] Although this document frequently uses terms such as vessel body 1, mounting hole 11, support base 2, support part 21, support groove 211, stepped surface 212, fixing part 22, discharge hole 23, main hole 231, support hole 232, stirring shaft 3, discharge valve 4, bottom flange 5, and transition cavity 51, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A bottom support structure for a reactor, the reactor comprising a vessel body (1) having mounting holes (11) at the bottom, characterized in that, The supporting discharge structure includes a support base (2) located in the mounting hole (11) and sealed and fixed to the vessel body (1). The top of the support base (2) has a support part (21) for supporting the stirring shaft (3) of the reactor. The bottom of the support base (2) has a fixing part (22) for detachably fixing the discharge valve (4) by bolts. The support base (2) has a discharge hole (23) for connecting the inner cavity of the vessel body (1) and the discharge valve (4). The supporting discharge structure also includes an annular bottom flange (5). The longitudinal section of the support base (2) is inverted T-shaped. The bottom flange (5) passes through the mounting hole (11) and the circumferential edge of the bottom flange (5) is flush with the hole of the mounting hole (11). The support part (21) of the support base (2) passes through the bottom flange (5) and is located in the vessel body (1). The fixing part (22) of the support base (2) abuts against the bottom flange (5) and is detachably and sealed to the bottom flange (5) by bolts. The discharge hole (23) is connected to the inner cavity of the vessel body (1) through the transition cavity (51) in the bottom flange (5). The discharge hole (23) includes a main hole (231) located inside the support base (2) and several branch holes (232) located on the side of the support base (2). The main hole (231) penetrates the bottom of the support base (2). The outer end of the branch hole (232) is connected to the inner cavity of the vessel body (1), and the inner end is connected to the main hole (231).

2. The bottom support structure for the discharge of a reaction vessel according to claim 1, characterized in that, The support part (21) has a recessed support groove (211) for the bottom of the stirring shaft (3) to pass through. The discharge hole (23) passes through the bottom of the support groove (211) so that the discharge hole (23) is connected to the support groove (211).

3. The bottom support structure for the discharge of a reaction vessel according to claim 2, characterized in that, There is an annular stepped surface (212) between the support groove (211) and the discharge hole (23).

4. A bottom support structure for the discharge of a reaction vessel according to claim 1, 2, or 3, characterized in that, The support hole (232) is located vertically below the bottom wall of the vessel body (1).

5. A bottom support structure for the discharge of a reaction vessel according to claim 1, 2, or 3, characterized in that, The bottom wall of the vessel body (1) is arc-shaped, and the support base (2) is located in the middle of the bottom of the vessel body (1).

6. A bottom support structure for the discharge of a reaction vessel according to claim 1, 2, or 3, characterized in that, The support part (21) is located in the inner cavity of the vessel body (1) and is located above the bottom wall of the vessel body (1). The fixing part (22) is located outside the vessel body (1) and is located below the bottom wall of the vessel body (1).

7. A bottom support structure for the discharge of a reaction vessel according to claim 1, 2, or 3, characterized in that, The top surface of the bottom flange (5) smoothly transitions to the bottom wall of the vessel body (1). The top surface of the bottom flange (5) is flush with the bottom wall of the vessel body (1) in the vertical direction, or the top surface of the bottom flange (5) is located below the bottom wall of the vessel body (1) in the vertical direction.

8. A bottom support structure for the discharge of a reaction vessel according to claim 1, 2, or 3, characterized in that, The wall of the transition cavity (51) is inclined, and the transition cavity (51) is flared towards the inner cavity of the vessel body (1).

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