Stirring vessel

Abstract

This invention discloses a stirred tank, comprising an arc-shaped frame plate and a sealing plate. The arc-shaped frame plate and the sealing plate are connected to form a catalyst chamber for storing and retrieving catalyst. A ferrule is connected to the top of the catalyst chamber, and a main pipe is located at the junction of the ferrule. Catalyst flows into the ferrule through the main pipe and is then fed into various parts of the catalyst chamber through the ferrule. A bottom jet pipe is located at the bottom of the catalyst chamber, within a hopper at the bottom of the catalyst chamber. The catalyst is suitable for being discharged through the hopper located at the bottom. This invention enables automatic catalyst replacement without manual disassembly of the catalyst frame and can be applied to the loading and unloading of catalysts in stirred tanks.

Description

Technical Field

[0001] This invention relates to the field of stirring device technology, and more particularly to a stirring vessel. Background Technology

[0002] Existing catalyst-containing reactors require catalyst replacement after the catalyst loses its activity due to reaction with the reactor medium. This process involves disassembling all components, removing the catalyst frame, and then replacing the catalyst. This method is cumbersome, inefficient, and prone to safety accidents, making it unsuitable for large-scale application. Furthermore, current reactors lack automated catalyst loading and unloading capabilities. Additionally, according to currently available patent applications, a double-sphere temperature-controlled shift reactor (patent application number CN202322780427.5) uses a Johnson mesh catalyst frame, but this structure is unsuitable for reactors and fails to meet their operational requirements.

[0003] Therefore, it is necessary to design a stirred tank to overcome the above-mentioned defects. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, the present invention provides a catalyst frame device that can automatically replace the catalyst without manual disassembly of the catalyst frame, and can also be applied to the loading and unloading of catalysts in a stirred tank.

[0006] According to a first aspect of the present invention, a catalyst frame device includes an arc-shaped frame plate and a sealing plate, the arc-shaped frame plate being connected to the sealing plate to enclose and form a catalyst cavity for storing and retrieving a catalyst. The top of the catalyst cavity is connected to a trouser tube, and a main pipe is provided at the merging point of the trouser tube. The catalyst flows into the trouser tube through the main pipe and is also fed into various parts of the catalyst cavity through the trouser tube. The bottom of the catalyst cavity is provided with a bottom spray pipe, which is located in a hopper disposed at the bottom of the catalyst cavity. The catalyst is adapted to be discharged through the hopper located at the bottom.

[0007] Preferably, the catalyst chamber is further provided with a top spray pipe, which is adapted to spray nitrogen gas into the catalyst chamber.

[0008] More preferably, both the top jet pipe and the bottom jet pipe include a jet branch pipe and a jet main pipe, and the jet branch pipe and the jet main pipe are inclined to form an angle.

[0009] Preferably, the top jet pipe and the bottom jet pipe intermittently jet nitrogen.

[0010] More preferably, the surfaces of the arc-shaped frame plate and the sealing plate are covered with holes, and the surfaces of the arc-shaped frame plate and the sealing plate are polished, and the sealing plate is a straight arc-shaped plate.

[0011] Preferably, the diameter of the pores is smaller than the diameter of the catalyst particles.

[0012] A second aspect of the present invention provides a stirred tank, including the catalyst frame device described in the first aspect of the present invention and a stirrer located in the middle of the stirred tank. Multiple sets of the catalyst frame devices are arranged inside the stirred tank, each set of the catalyst frame devices is arranged around the stirrer, and each set of the catalyst frame devices divides multiple catalyst chambers inside the stirred tank.

[0013] More preferably, at least one set of the catalyst frame devices is connected to the inner wall of the stirred tank via bolts, and the bottom of the stirred tank is also provided with support legs, which are adapted to support and fix the stirred tank.

[0014] Preferably, the catalyst frame devices in each group are supported and fixed together by spacer columns.

[0015] More preferably, the bottom of the mixing vessel gradually tapers towards the center to form a hopper structure, and the hopper structure of the mixing vessel is provided with an inspection door cover.

[0016] The beneficial effects of this invention are as follows: When adding catalyst, the catalyst enters through the main pipe and is introduced into the catalyst chamber through the underpipe. Then, nitrogen gas is intermittently injected into the catalyst chamber through the top and bottom spray pipes to ensure that the catalyst fills the chamber. When it is necessary to unload the catalyst, the external valve is opened, and the catalyst is discharged from the catalyst chamber by gravity. If necessary, nitrogen gas can be injected into the catalyst chamber to purge the catalyst. When the catalyst unloading is blocked, the inspection door can be opened for inspection and troubleshooting. Thus, the above method can realize automatic replacement of the catalyst without manual disassembly of the catalyst frame, and can also be applied to the loading and unloading of catalysts in stirred tanks.

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a structural diagram of the catalyst frame device of the present invention;

[0021] Figure 2 This is a diagram showing the internal structure of the stirring vessel of the present invention;

[0022] Figure 3 This is a top view of the internal structure of the stirring vessel of the present invention;

[0023] Figure 4 This is a perspective view of the internal structure of the stirring vessel of the present invention.

[0024] Figure label:

[0025] 1. Arc-shaped frame plate; 2. Sealing plate; 3. Top blow pipe; 4. Hopper; 5. Support leg; 6. Inspection door cover; 7. Underpants pipe; 8. Spacer column; 9. Screw; 10. Bottom blow pipe; 11. Agitator; 12. Main pipe. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention and therefore showing only the components relevant to the invention. In the description of the invention, it should be understood that, unless otherwise stated, "a plurality of" means two or more.

[0027] See Figure 1 A catalyst frame device according to a specific embodiment of the present invention includes an arc-shaped frame plate 1 and a sealing plate 2. The arc-shaped frame plate 1 and the sealing plate 2 are connected to form a catalyst cavity for storing and retrieving catalyst. The top of the catalyst cavity is connected to a ferrule 7, and a main pipe 12 is provided at the junction of the ferrule 7. The catalyst flows into the ferrule 7 through the main pipe 12 and is then introduced into various parts of the catalyst cavity through the ferrule 7. The bottom of the catalyst cavity is provided with a bottom spray pipe 10, through which the catalyst is suitable for output. Thus, when adding catalyst, an automated filling device is used to input the catalyst from the main pipe 12 into the ferrule 7, and then the catalyst is introduced into the catalyst cavity through the ferrule 7. During the addition of catalyst, the top spray pipe 3 and the bottom spray pipe 10 intermittently spray nitrogen gas to facilitate the filling of the cavity with catalyst. When it is necessary to unload the catalyst, the external valve can be opened, and the catalyst will be discharged from the catalyst chamber by gravity. If necessary, nitrogen gas can be injected to unload the catalyst, thus realizing the automated loading and unloading of the catalyst.

[0028] Specifically, a top spray pipe 3 is provided at the top of the catalyst chamber, through which nitrogen gas is sprayed into the catalyst chamber. Both the top spray pipe 3 and the bottom spray pipe 10 consist of spray branch pipes and a main spray pipe. The main spray pipe is located on the top and bottom planes of the catalyst chamber. One end of each spray branch pipe is connected to the main spray pipe, and the other end extends into the catalyst chamber. The spray branch pipes and the main spray pipe are inclined to form an angle, preferably 30°, 45°, etc. Multiple spray branch pipes located at the same end are arranged at a set interval to ensure that the catalyst sprayed from the spray branch pipes can be distributed throughout the catalyst chamber. It should be noted that the top spray pipe 3 and the bottom spray pipe 10 spray nitrogen intermittently, and the position of the top spray pipe 3 is not limited to the top of the catalyst chamber; it can also be located on the side of the catalyst frame device.

[0029] More specifically, both the curved frame plate 1 and the sealing plate 2 have holes on their surfaces, and both surfaces are polished. The sealing plate 2 is a curved straight plate. The curved straight plate design reduces fluid resistance and ensures smooth operation. It should be noted that the diameter of the holes in the curved frame plate 1 and the sealing plate 2 must be smaller than the diameter of the catalyst particles.

[0030] A stirred tank according to a specific embodiment of the present invention employs the catalyst frame device described in any of the above embodiments and a stirrer 11 located in the middle of the stirred tank. Multiple sets of catalyst frame devices are arranged inside the stirred tank, with each set of catalyst frame devices surrounding the stirrer 11. It should be noted that the catalyst frame can be a single layer and a single set, or a single layer and multiple sets, or multiple layers and multiple sets.

[0031] Each set of catalyst frames is located within the stirred tank and is divided into multiple catalyst chambers. At least one set of catalyst frames is bolted to the inner wall of the stirred tank, and the bottom of the stirred tank is equipped with support legs 5, which are suitable for supporting and fixing the stirred tank. Of course, the support legs 5 are not limited to the cylindrical shape shown in the accompanying drawings, and can also be other shapes. Furthermore, the catalyst frames are supported and fixed together by spacer columns 8. The spacer columns 8 prevent the catalyst from squeezing the arc-shaped frame plate 1, causing deformation of the arc-shaped frame plate 1 and affecting the flow of the medium inside the stirred tank. The bottom of the stirred tank tapers towards the center to form a hopper 4 structure, and the hopper 4 structure is also equipped with a maintenance door cover 6. The maintenance door cover 6 can be opened for inspection and troubleshooting in case of discharge blockage.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The above description is based on the preferred embodiments of the present invention. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A stirring vessel, characterized in that: It includes a catalyst frame device and a stirrer (11) located in the middle of the stirred tank. Multiple sets of the catalyst frame devices are arranged inside the stirred tank. Each set of the catalyst frame devices is arranged around the stirrer (11). Each set of the catalyst frame devices divides multiple catalyst chambers inside the stirred tank. The catalyst frame device includes an arc-shaped frame plate (1) and a sealing plate (2). The arc-shaped frame plate (1) and the sealing plate (2) are connected to form a catalyst cavity for storing and retrieving the catalyst. The top of the catalyst cavity is connected to a trouser tube (7). A main pipe (12) is provided at the junction of the trouser tube (7). The catalyst flows into the trouser tube (7) through the main pipe (12) and is input into various parts of the catalyst cavity through the trouser tube (7). The bottom of the catalyst cavity is adapted to connect to a bottom spray pipe (10). The bottom spray pipe (10) is located in a hopper (4) provided at the bottom of the catalyst cavity. The catalyst is adapted to be output through the hopper (4) located at the bottom. The catalyst chamber is also provided with a top spray pipe (3) at the top, which is adapted to spray nitrogen into the catalyst chamber; the top spray pipe (3) and the bottom spray pipe (10) spray nitrogen intermittently.

2. The stirred tank as described in claim 1, characterized in that: Both the top spray pipe (3) and the bottom spray pipe (10) include a spray branch pipe and a spray main pipe, and the spray branch pipe and the spray main pipe are inclined to form an angle.

3. The stirred tank as described in claim 2, characterized in that: The surfaces of the arc-shaped frame plate (1) and the sealing plate (2) are covered with holes, and the surfaces of the arc-shaped frame plate (1) and the sealing plate (2) are polished surfaces. The sealing plate (2) is an arc-shaped straight plate.

4. The stirred tank as described in claim 3, characterized in that: The diameter of the pores is smaller than the diameter of the catalyst particles.

5. The stirred tank as described in claim 1, characterized in that: At least one set of the catalyst frame devices is connected to the inner wall of the stirred tank by bolts, and the bottom of the stirred tank is also provided with a support leg (5), which is adapted to support and fix the stirred tank.

6. The stirred tank as described in claim 5, characterized in that: The catalyst frame devices in each group are supported and fixed together by spacer columns (8).

7. The stirred tank as described in claim 1, characterized in that: The bottom of the mixing vessel gradually narrows towards the middle to form a hopper (4) structure, and the hopper (4) structure of the mixing vessel is provided with an inspection door cover (6).

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