A stable structure of a stirring device of a reaction kettle

Abstract

The utility model provides a kind of stable structure of reaction kettle stirring device, belong to reaction kettle technical field.It solves the problem of poor stability of existing reaction kettle stirring device.This reaction kettle includes kettle body, stirring device includes stirring shaft and the stirring paddle of solid connection on stirring shaft, stable structure includes shaft sleeve, water outlet connector and fixed ring, kettle body bottom center has installation port, fixed ring is welded solid connection at the rim of installation port, the inner end of water outlet connector passes through fixed ring, water outlet connector is sealed solid connection with fixed ring, the inner end of water outlet connector has annular step groove, shaft sleeve is embedded in step groove, stirring shaft is set in shaft sleeve after passing through stirring paddle, stirring shaft and shaft sleeve gap cooperation, the side wall of water outlet connector is spaced apart and is provided with several water outlet holes, water outlet hole makes the inner chamber of kettle body and the inner chamber of water outlet connector communicate.This reaction kettle stirring device's stable structure has the advantages that stability is good.

Description

Technical Field

[0001] This utility model belongs to the field of reaction vessel technology and relates to a stable structure of a reaction vessel stirring device. Background Technology

[0002] A reaction vessel is a closed or open container that provides a reaction space for physical or chemical reactions. By controlling key parameters such as temperature, pressure, stirring speed, and reactant concentration within the vessel, materials undergo the desired mixing, reaction, synthesis, polymerization, hydrolysis, and other processes.

[0003] The reactor includes a stirring device. Existing reactor stirring devices, such as the detachable stirring device and reactor assembly disclosed in Chinese patent literature [Patent No.: 201521144424.1; Application Publication No.: CN205361323U], have a reactor bottom. The stirring device includes a stirring shaft, two horizontal blades, an anchor-shaped outer blade, and two vertical blades. The inner ends of the two horizontal blades are detachably mounted on the stirring shaft, and the other ends are connected to the anchor-shaped outer blades. One end of each vertical blade is connected to the horizontal blade, and the other end is connected to the anchor-shaped outer blade. The shape of the anchor-shaped outer blade is consistent with the cross-sectional shape of the reactor bottom and close to the reactor bottom. The two ends of the anchor-shaped outer blade are respectively connected to the outer ends of the two horizontal blades. The middle part of the anchor-shaped outer blade is detachably mounted on the stirring shaft. One end of the vertical blade is connected between the middle and the end of the anchor-shaped outer blade.

[0004] The stirring device of this type of reactor includes a stirring shaft, two horizontal blades, an anchor-shaped outer blade, and two vertical blades. The stirring blades, which consist of the two horizontal blades, the anchor-shaped outer blade, and the two vertical blades, are very large and occupy the entire bottom of the reactor. When the stirring shaft rotates, it drives the stirring blades to rotate. Especially when stirring some reactants with high viscosity, the centrifugal force generated by the stirring blades is very large, which causes the stirring shaft to run radially, reducing the stability of the stirring device and even causing damage to the stirring device. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a stable structure for a reactor stirring device, and to solve the technical problem of how to improve the stability of the stirring device.

[0006] The objective of this utility model can be achieved through the following technical solution: a stable structure for a reaction vessel stirring device, the reaction vessel including a vessel body, the stirring device including a stirring shaft and stirring blades fixedly connected to the stirring shaft, characterized in that the stable structure includes a bushing, a water outlet connector and a fixing ring, the bottom of the vessel body has a mounting port at its center, the fixing ring is welded and fixedly connected to the edge of the mounting port, the inner end of the water outlet connector passes through the fixing ring, the water outlet connector is sealed and fixedly connected to the fixing ring, the inner end of the water outlet connector has an annular stepped groove, the bushing is embedded and fixed in the stepped groove, the bottom of the stirring shaft passes through the stirring blades and is inserted into the bushing, the stirring shaft and the bushing are clearance-fitted, and the side wall of the water outlet connector is provided with a plurality of water outlet holes at intervals, the water outlet holes connecting the inner cavity of the vessel body with the inner cavity of the water outlet connector.

[0007] An installation port is provided at the bottom of the vessel body, offering installation space for the stable structure to be installed. A retaining ring serves as the installation carrier, welded and sealed to the vessel body. The retaining ring positions the water outlet connector. A bushing is positioned inside the water outlet connector, with the bottom of the stirring shaft passing through the bushing, achieving radial limitation of the stirring shaft. This prevents radial runout of the stirring shaft when it rotates, driving the impeller, thus improving the stability of the stirring device. The bottom of the stirring shaft, passing through the bushing, blocks the inlet of the water outlet connector. Therefore, several water outlet holes are spaced apart on the side wall of the water outlet connector. These holes connect the inner cavity of the vessel body to the inner cavity of the water outlet connector, allowing material inside the vessel to still be discharged through the water outlet connector. A discharge valve is connected to the outer end of the water outlet connector.

[0008] In the aforementioned stable structure of a reactor stirring device, the water outlet is inclined inward and downward. The inlet end of the water outlet penetrates the outer wall of the water outlet connector, the bottom of the inlet end of the water outlet is adjacent to the inner end face of the fixing ring, and the outlet end of the water outlet penetrates the inner wall of the water outlet connector. The outlet end of the water outlet is located at the axial center of the water outlet connector. This structure ensures that the material inside the reactor can be smoothly discharged through the water outlet and water outlet connector, and minimizes the impact of the water outlet's placement on the strength of the water outlet connector.

[0009] In the aforementioned stable structure of a reactor stirring device, the outer end of the water outlet connector has a flange protruding outwards along its circumference. A fastener passes through the flange and is inserted into the retaining ring to secure the water outlet connector to the retaining ring. A first sealing ring is provided between the water outlet connector and the inner wall of the retaining ring, and a second sealing ring is provided between the flange and the outer end face of the retaining ring. The fastener is a bolt. This structure allows for a detachable connection between the water outlet connector and the retaining ring, and the first and second sealing rings ensure a tight seal between the water outlet connector and the retaining ring.

[0010] In the stable structure of the reactor stirring device described above, the outer wall of the water outlet connector fits snugly against the inner wall of the fixing ring. This ensures a tight seal between the water outlet connector and the fixing ring, and better withstands the radial runout tendency of the stirring shaft, thus improving the stability of the stirring device.

[0011] In the aforementioned stable structure of a reactor stirring device, the width of the stepped groove along the radial direction of the water outlet connector is 1 / 3 to 1 / 2 of the wall thickness of the water outlet connector. This structure ensures that the inner end of the water outlet connector has sufficient strength, ensuring the stability of the stable structure and thus improving the stability of the stirring device.

[0012] In the aforementioned stable structure of a reactor stirring device, the inner wall of the bushing is flush with the inner wall of the water outlet connector. This structure ensures the firmness of the bushing installation and the stability of the stable structure, thereby improving the stability of the stirring device.

[0013] Compared with the prior art, the stable structure of the reaction vessel stirring device provided by this utility model has the following advantages:

[0014] 1. The bottom of this reactor is equipped with a stabilizing structure to support the stirring shaft and limit its radial movement, thus preventing radial runout and improving the stability of the stirring device.

[0015] 2. This stabilizing structure has several water outlet holes spaced apart on the side wall of the water outlet connector, so that the material inside the vessel can still be discharged through the water outlet connector. This design is ingenious. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the stirring device in this reactor.

[0017] Figure 2 This is a schematic diagram of the overall structure of this stable structure.

[0018] In the figure, 1 is the vessel body; 11 is the mounting port; 2 is the stirring shaft; 3 is the stirring blade; 4 is the shaft sleeve; 5 is the water outlet connector; 51 is the stepped groove; 52 is the water outlet hole; 53 is the retaining edge; 6 is the fixing ring; 7 is the first sealing ring; and 8 is the second sealing ring. Detailed Implementation

[0019] 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.

[0020] like Figure 1As shown, the reactor includes a vessel body 1, a stirring device and a stabilizing structure. The stirring device includes a stirring shaft 2 and stirring blades 3 fixed to the stirring shaft 2. The stabilizing structure includes a bushing 4, a water outlet connector 5 and a retaining ring 6.

[0021] like Figure 2 As shown, the bottom of the vessel body 1 has a mounting port 11 at its center. A retaining ring 6 is welded and fixed to the edge of the mounting port 11. The inner end of the water outlet connector 5 passes through the retaining ring 6, and the outer side wall of the water outlet connector 5 is in contact with the inner side wall of the retaining ring 6, thus sealing and fixing the water outlet connector 5 to the retaining ring 6. Specifically, the outer end of the water outlet connector 5 has a retaining flange 53 that protrudes outwards around its perimeter. Fasteners such as bolts pass through the retaining flange 53 and are inserted into the retaining ring 6 to fix the water outlet connector 5 to the retaining ring 6. A first sealing ring 7 is provided between the inner side wall of the water outlet connector 5 and the retaining ring 6, and a second sealing ring 8 is provided between the retaining flange 53 and the outer end face of the retaining ring 6.

[0022] The inner end of the water outlet connector 5 has an annular stepped groove 51. The bushing 4 is embedded and fixed in the stepped groove 51. The inner sidewall of the bushing 4 is flush with the inner sidewall of the water outlet connector 5. The bottom of the stirring shaft 2 passes through the stirring blade 3 and is inserted into the bushing 4. The stirring shaft 2 and the bushing 4 are clearance-fitted. In this embodiment, the radial width of the stepped groove 51 along the water outlet connector 5 is 1 / 2 of the wall thickness of the water outlet connector 5. In actual production, the radial width of the stepped groove 51 along the water outlet connector 5 is 1 / 3 or 5 / 12 of the wall thickness of the water outlet connector 5.

[0023] In this embodiment, eight water outlet holes 52 are provided at intervals on the side wall of the water outlet connector 5. The water outlet holes 52 connect the inner cavity of the vessel body 1 with the inner cavity of the water outlet connector 5. In actual production, the number of water outlet holes 52 can be six or twelve. The water outlet holes 52 are inclined inward and downward. The water inlet end of the water outlet hole 52 penetrates through the outer side wall of the water outlet connector 5. The bottom of the water inlet end of the water outlet hole 52 is adjacent to the inner end face of the fixing ring 6. The water outlet end of the water outlet hole 52 penetrates through the inner side wall of the water outlet connector 5. The water outlet end of the water outlet hole 52 is located at the axial center of the water outlet connector 5.

[0024] During operation, the stirring shaft 2 drives the stirring blades 3 to rotate. The radial runout force of the stirring shaft 2 is transmitted to the vessel body 1 through the bushing 4, the water outlet connector 5, and the retaining ring 6, thus preventing the radial runout of the stirring shaft 2. The water outlet connector 5 is connected to a discharge valve. After the stirring reaction is completed, the discharge valve is opened, and the material in the inner cavity of the vessel body 1 flows through the water outlet hole 52 into the inner cavity of the water outlet connector 5, and is then discharged through the discharge valve.

[0025] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model 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 this utility model or exceeding the scope defined by the appended claims.

[0026] Although this document frequently uses terms such as vessel body 1, mounting port 11, stirring shaft 2, stirring blade 3, bushing 4, water outlet connector 5, stepped groove 51, water outlet hole 52, retaining edge 53, fixing ring 6, first sealing ring 7, and second sealing ring 8, 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 this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A stable structure for a stirring device in a reaction vessel, the reaction vessel comprising a vessel body (1), the stirring device comprising a stirring shaft (2) and stirring blades (3) fixedly connected to the stirring shaft (2), characterized in that, The stabilizing structure includes a bushing (4), a water outlet connector (5), and a fixing ring (6). The bottom of the vessel body (1) has a mounting port (11) at its center. The fixing ring (6) is welded and fixed to the edge of the mounting port (11). The inner end of the water outlet connector (5) passes through the fixing ring (6). The water outlet connector (5) and the fixing ring (6) are sealed and fixed together. The inner end of the water outlet connector (5) has an annular stepped groove (51). The bushing (4) is embedded and fixed in the stepped groove (51). The bottom of the stirring shaft (2) passes through the stirring blade (3) and is inserted into the bushing (4). The stirring shaft (2) and the bushing (4) are clearance-fitted. The side wall of the water outlet connector (5) is provided with several water outlet holes (52) at intervals. The water outlet holes (52) connect the inner cavity of the vessel body (1) with the inner cavity of the water outlet connector (5).

2. The stabilizing structure of the reactor stirring device according to claim 1, characterized in that, The water outlet (52) is inclined inward and downward. The water inlet end of the water outlet (52) penetrates the outer wall of the water outlet connector (5). The bottom of the water inlet end of the water outlet (52) is adjacent to the inner end face of the fixing ring (6). The water outlet end of the water outlet (52) penetrates the inner wall of the water outlet connector (5). The water outlet end of the water outlet (52) is located at the axial center of the water outlet connector (5).

3. The stable structure of a reactor stirring device according to claim 1 or 2, characterized in that, The outer end of the water outlet connector (5) has a retaining edge (53) that protrudes outward around the perimeter. The water outlet connector (5) is fixedly connected to the retaining ring (6) by fasteners passing through the retaining edge (53) and being inserted into the retaining ring (6). A first sealing ring (7) is provided between the inner wall of the water outlet connector (5) and the retaining ring (6), and a second sealing ring (8) is provided between the retaining edge (53) and the outer end face of the retaining ring (6).

4. The stable structure of a reaction vessel stirring device according to claim 1 or 2, characterized in that, The outer wall of the water outlet connector (5) is in contact with the inner wall of the fixing ring (6).

5. The stable structure of a reactor stirring device according to claim 1 or 2, characterized in that, The width of the stepped groove (51) along the radial direction of the water outlet connector (5) is 1 / 3 to 1 / 2 of the wall thickness of the water outlet connector (5).

6. The stable structure of a reaction vessel stirring device according to claim 1 or 2, characterized in that, The inner wall of the bushing (4) is flush with the inner wall of the water outlet connector (5).

Images