A reaction kettle

Abstract

The application discloses a reaction kettle and relates to the technical field of chemical equipment, which comprises a reaction kettle body, a feeding port arranged at the top of the reaction kettle body, and a discharging port arranged at the bottom of the reaction kettle body; a stirring assembly arranged at the top of the reaction kettle body and extending into the cavity of the reaction kettle body at one end, which is used for stirring the substances in the cavity of the reaction kettle body; a circulating pipeline arranged on the outer wall of the reaction kettle body, one end of the circulating pipeline being connected with the bottom of the reaction kettle body, the other end of the circulating pipeline being connected with the side wall of the reaction kettle body, the height of the connecting position of the circulating pipeline and the side wall of the reaction kettle body being lower than the liquid level height in the cavity of the reaction kettle body, the circulating pipeline and the cavity of the reaction kettle body forming a loop, and a pipeline pump arranged on the circulating pipeline. The application can rapidly exchange and circulate the upper and lower layer media in the reaction kettle body, the media flow can form a jet flow, turbulence can be generated, and the media can be uniformly mixed or dispersed.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, and more specifically to a reaction vessel. Background Technology

[0002] In related technologies, reaction vessels are equipped with stirring paddles inside. The rotation of the stirring paddles causes the medium to flow, achieving the purpose of mixing or dispersing. This includes liquid-liquid mixing (uniform concentration change), liquid-liquid dispersion (two or more immiscible media), gas-liquid dispersion, and solid-liquid suspension. For low-viscosity media, stirring is mostly in a turbulent state. Through the convection of the main body, the material is transported in a large-scale space. Through eddy diffusion, the medium is rapidly and uniformly mixed or dispersed locally. In this process, dead zones are generated locally, or the upper and lower layers of media do not easily complete rapid exchange, and there are uneven mixing or dispersion phenomena.

[0003] Therefore, how to provide a reactor that can increase the medium circulation rate and change the dead zone is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a reaction vessel, which aims to solve the problems in the background art mentioned above, improve the rapid exchange of the upper and lower media in the cavity of the reaction vessel, and the setting of the circulation pipeline can increase the media circulation volume and change the dead zone, which is conducive to the rapid and uniform mixing or dispersion of the media locally.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reaction vessel, comprising:

[0007] The reactor body has a feed inlet at the top and a discharge outlet at the bottom;

[0008] A stirring assembly is disposed at the top of the reactor body, with one end extending into the cavity of the reactor body, for stirring the substances inside the cavity of the reactor body.

[0009] A circulation pipeline is installed on the outer wall of the reactor body. One end of the circulation pipeline is connected to the bottom of the reactor body, and the other end is connected to the side wall of the reactor body. The height of the connection between the circulation pipeline and the side wall of the reactor body is lower than the liquid level in the cavity of the reactor body. The circulation pipeline and the cavity of the reactor body form a loop, and a pipeline pump is installed on the circulation pipeline.

[0010] According to the reaction vessel provided by the present invention, the stirring assembly includes a motor, a stirring shaft and a stirring paddle. The motor is fixed to the top of the reaction vessel body by a bracket. One end of the stirring shaft is connected to the output shaft of the motor by a coupling, and the other end passes through the top of the reaction vessel body and extends into the cavity of the reaction vessel body. The stirring paddle is provided on the stirring shaft.

[0011] The reaction vessel provided by the present invention further includes baffles, wherein multiple baffles are provided, and the multiple baffles are arranged vertically and spaced apart on the inner wall of the reaction vessel body.

[0012] According to the reaction vessel provided by the present invention, a plurality of circulation pipelines are provided, and the plurality of circulation pipelines are evenly distributed around the axis of the reaction vessel body on the outside of the reaction vessel body.

[0013] According to the reaction vessel provided by the present invention, the number of circulation pipes is equal to the number of baffles, and the connection between each circulation pipe and the side wall of the reaction vessel body is located between two adjacent baffles.

[0014] The reaction vessel provided by the present invention further includes a thermometer sleeve, one end of which penetrates the top of the reaction vessel body and extends into the cavity of the reaction vessel body.

[0015] According to the reaction vessel provided by the present invention, the reaction vessel body includes a shell and a cover, and the cover and the shell are detachably connected.

[0016] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a reaction vessel. By setting a circulation pipeline outside the reaction vessel, the upper and lower layers of media in the reaction vessel body can be rapidly exchanged and circulated through the pipeline pump on the circulation pipeline. At the inlet of the circulation pipeline into the reaction vessel, the inflow of media can form a jet and generate turbulence, which is beneficial to local rapid and uniform mixing or dispersion of the media. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the reaction vessel provided by the present invention;

[0019] Figure 2 Provided by the present invention Figure 1 A cross-sectional view along the AA direction.

[0020] Wherein: 1 is the reactor body; 11 is the shell; 12 is the cover; 2 is the stirring assembly; 21 is the motor; 22 is the stirring shaft; 23 is the stirring paddle; 3 is the circulation pipeline; 4 is the pipeline pump; 5 is the feed pipe; 6 is the discharge pipe; 7 is the discharge valve; 8 is the baffle; 9 is the thermometer sleeve. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] See Figure 1 and 2 This invention discloses a reaction vessel, comprising:

[0023] The reactor body 1 has a feed inlet at the top and a discharge outlet at the bottom;

[0024] The stirring assembly 2 is located on the top of the reactor body 1, with one end extending into the cavity of the reactor body 1, and is used to stir the substances in the cavity of the reactor body 1.

[0025] A circulation pipe 3 is installed on the outer wall of the reactor body 1. One end of the circulation pipe 3 is connected to the bottom of the reactor body 1, and the other end is connected to the side wall of the reactor body 1. The height of the connection between the circulation pipe 3 and the side wall of the reactor body 1 is lower than the liquid level in the cavity of the reactor body 1. The circulation pipe 3 and the cavity of the reactor body 1 form a loop, and a pipeline pump 4 is installed on the circulation pipe 3.

[0026] It should be noted that: a feed pipe 5 is provided at the feed inlet. One end of the feed pipe 5 is located outside the reactor body 1, and the other end extends through the top of the reactor body 1 and into the interior of the reactor body 1. Preferably, the lower end of the feed pipe 5 is lower than the height of the connection between the circulation pipe 3 and the side wall of the reactor body 1. A discharge pipe 6 is connected to the discharge port, and a discharge valve 7 is provided on the discharge pipe 6. The discharge valve 7 is used to control the discharge of the medium in the reactor body 1. In some embodiments, when the connection between the circulation pipe 3 and the side wall of the reactor body 1 is the outlet, and the connection between the circulation pipe 3 and the bottom of the reactor body 1 is the inlet, the pump 4 on the circulation pipe 3 can form a jet at the inlet at the bottom of the reactor body 1, thereby generating turbulence. This is beneficial for the rapid and uniform mixing or dispersion of the medium locally, and can also prevent dead zones from forming at the bottom of the reactor body 1. This configuration allows for rapid exchange of the upper and lower layers of medium within the reactor body 1. Alternatively, when the connection between the circulation pipe 3 and the side wall of the reactor body 1 is the inlet, and the connection between the circulation pipe 3 and the bottom of the reactor body 1 is the outlet, the medium in the circulation pipe 3 can increase the circulation rate of the medium within the reactor body 1, which is beneficial for the uniform mixing of the medium within the reactor body 1. In other embodiments, when the diameter of the circulation pipe 3 is large, multiple small holes can be provided at the bottom of the reactor body 1, and these holes are located inside the circulation pipe 3. By setting multiple small holes, multiple jets can be formed, thereby improving the rate of local uniform mixing or dispersion.

[0027] According to the reaction vessel provided by the present invention, the stirring assembly 2 includes a motor 21, a stirring shaft 22, and a stirring paddle 23. The motor 21 is fixed to the top of the reaction vessel body 1 by a bracket. One end of the stirring shaft 22 is connected to the output shaft of the motor 21 via a coupling, and the other end passes through the top of the reaction vessel body 1 and extends into the cavity of the reaction vessel body 1. The stirring shaft 22 is equipped with a stirring paddle 23. A shaft seal is provided at the connection position between the stirring shaft 22 and the top of the reaction vessel body 1 to achieve sealing of the reaction vessel body 1. The arrangement of the stirring shaft 22 and the stirring paddle 23 can accelerate the flow of the medium inside the reaction vessel body 1 and facilitate the mixing of multiple media.

[0028] The reaction vessel provided by the present invention further includes baffles 8, wherein multiple baffles 8 are provided, all of which are vertically arranged and spaced apart on the inner wall of the reaction vessel body 1. By providing the baffles 8, during the stirring process of the stirring paddle 23, the flow of the medium can be disturbed, promoting the stirring effect of the medium and facilitating its mixing.

[0029] According to the reactor provided by the present invention, multiple circulation pipes 3 are provided, and the multiple circulation pipes 3 are evenly distributed around the axis of the reactor body 1 on the outside of the reactor body 1. By providing multiple circulation pipes 3, the circulation volume of the medium can be increased, promoting the jetting phenomenon of the medium in the reactor body 1 at multiple points, which helps to increase the mixing of the medium in the reactor body 1.

[0030] According to the reactor provided by the present invention, the number of circulation pipes 3 is equal to the number of baffles 8, and the connection between each circulation pipe 3 and the side wall of the reactor body 1 is located between two adjacent baffles 8. In this embodiment, preferably, four baffles 8 and four circulation pipes 3 are provided, and the connection between the four circulation pipes 3 and the side wall of the reactor body 1 is located in the middle position of two adjacent baffles 8, which can make the jet of the baffles 8 and the circulation pipes 3 uniformly distributed, thereby helping to improve the uniformity of medium mixing in the reactor body 1. The connection positions of the circulation pipes 3 and the bottom of the reactor body 1 are also distributed in a ring array with respect to the axis of the reactor body 1. In other embodiments, a flow equalization element (not shown in the figure) may be provided on the inner wall of the reactor body 1. The flow equalization element has an annular cavity, and the connection point of the circulation pipe 3 to the side wall of the reactor body 1 is directly connected to the cavity of the flow equalization element. The flow equalization element is also provided with multiple flow equalization holes, which allow the medium in the cavity of the flow equalization element to be uniformly introduced into the medium inside the reactor body 1 through the flow equalization holes, further enhancing the influence of the circulation pipe 3 on the flow of the medium inside the reactor body 1, thereby improving the uniform mixing effect of the medium. Alternatively, only one circulation pipe 3 may be provided, which is directly connected to the cavity of the flow equalization element inside the reactor body 1, utilizing the flow equalization holes on the flow equalization element to influence the medium.

[0031] The reaction vessel provided by the present invention further includes a thermometer sleeve 9, one end of which penetrates the top of the reaction vessel body 1 and extends into the cavity of the reaction vessel body 1. The thermometer sleeve 9 facilitates the insertion of a thermometer into the reaction vessel body 1 for real-time monitoring of the temperature of the medium inside the reaction vessel body 1.

[0032] According to the reaction vessel provided by the present invention, the reaction vessel body 1 includes a shell 11 and a cover 12, and the cover 12 and the shell 11 are detachably connected. By setting the reaction vessel body 1 in a form in which the shell 11 and the cover 12 are detachable, it is convenient to disassemble and clean the reaction vessel body 1.

[0033] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reaction vessel, characterized by, The utility model relates to a reaction kettle, which comprises: a reaction kettle body provided with a feeding port at the top and a discharging port at the bottom; a stirring assembly arranged at the top of the reaction kettle body and extending into the cavity of the reaction kettle body at one end for stirring the substances in the cavity of the reaction kettle body; a circulation pipeline arranged on the outer wall of the reaction kettle body, one end of the circulation pipeline being connected to the bottom of the reaction kettle body and the other end being connected to the side wall of the reaction kettle body, the height of the connection position of the circulation pipeline and the side wall of the reaction kettle body being lower than the liquid level in the cavity of the reaction kettle body, the circulation pipeline and the cavity of the reaction kettle body forming a loop, and a pipeline pump being arranged on the circulation pipeline; a flow uniformizing member is arranged on the inner wall of the reaction kettle body, the flow uniformizing member having an annular cavity, the circulation pipeline being directly communicated with the cavity of the flow uniformizing member at the position connected to the side wall of the reaction kettle body, and a plurality of flow uniformizing holes being arranged on the flow uniformizing member to uniformly pass the medium in the cavity of the flow uniformizing member into the medium in the reaction kettle body through the flow uniformizing holes; when the pipe diameter of the circulation pipeline is large, a plurality of small holes are arranged at the bottom of the reaction kettle body and located inside the circulation pipeline.

2. The reactor of claim 1, wherein The stirring assembly comprises a motor, a stirring shaft and a stirring paddle, the motor being fixed on the top of the reaction kettle body through a support, one end of the stirring shaft being connected to the output shaft of the motor through a coupling, the other end of the stirring shaft penetrating through the top of the reaction kettle body and extending into the cavity of the reaction kettle body, and the stirring paddle being arranged on the stirring shaft.

3. The reactor of claim 1, wherein The utility model further comprises a plurality of baffles, the baffles being vertically arranged and spaced apart on the inner wall of the reaction kettle body.

4. The reactor of claim 3, wherein The utility model further comprises a plurality of circulation pipelines, the circulation pipelines being uniformly distributed on the outer wall of the reaction kettle body along the axis of the reaction kettle body.

5. The reactor of claim 4, wherein The number of the circulation pipelines is equal to the number of the baffles, and each circulation pipeline is located between two adjacent baffles.

6. The reactor of claim 1, wherein The utility model further comprises a thermometer sleeve, one end of the thermometer sleeve penetrating through the top of the reaction kettle body and extending into the cavity of the reaction kettle body.

7. The reactor of claim 1, wherein The reaction kettle body comprises a shell and a cover, and the cover and the shell are detachably connected.

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