Self-cleaning reaction kettle

Abstract

The utility model relates to the field of chemical equipment, and discloses a self-cleaning reaction kettle which comprises a kettle body, the stirring shaft at least partially extends in the inner cavity of the kettle body; the cleaning device comprises a cleaning tank arranged around the stirring shaft, a cleaning pipe extending from the cleaning tank to the inner wall surface of the kettle body, and a fixing part for fixing the cleaning tank on the stirring shaft, so that when the stirring shaft is driven to rotate, the cleaning tank is driven to rotate; the cleaning device synchronously rotates and releases the cleaning liquid in the cleaning groove to the inner wall surface of the kettle body through the cleaning pipe; and the feeding pipe is arranged to allow the cleaning liquid to be injected into the cleaning groove from the outside of the kettle body. Cleaning liquid is introduced into the cleaning tank and flows into the cleaning pipe, the cleaning pipe throws liquid materials onto the inner wall of the kettle body under rotation of the original stirring shaft of the reaction kettle, solid materials on the inner wall of the kettle body are washed down, uniform dispersion and full reaction of reaction materials are facilitated, and the reaction kettle is simple in structure and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment, specifically to a self-cleaning reactor. Background Technology

[0002] Reactors are commonly used equipment in chemical production. When using reactors for solid-liquid two-phase reactions, a large amount of powder often forms during the feeding process and adheres to the reactor wall, forming particles that are either attached to the reactor wall or fall into the reactor slurry, forming a non-uniform material. This has a significant negative impact on subsequent reactions and production. Therefore, it is necessary to clean the solid powder from the reactor wall.

[0003] Chinese utility model patent CN212819893U discloses a reaction vessel with a sphere mounted on a stirring shaft. Water required for the reaction is introduced into the sphere through a water pipe, and air is blown through an air inlet pipe to impact and rotate the sphere. A high-pressure nozzle at the lower end of the sphere sprays water out, washing away the material on the reaction vessel wall and causing it to fall into the vessel body. The sphere needs to remain sealed between the water pipe and the sphere during rotation. The air blowing impact on the sphere requires a high degree of fit between the air inlet pipe and the sphere. The entire device has a complex structure and high requirements for sealing and the fit of each component. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of existing technologies, such as the high requirements for sealing and the fit of various components in the reactor, and the complex structure.

[0005] To achieve the above objectives, this utility model provides a self-cleaning reactor, comprising:

[0006] The vessel body;

[0007] A stirring shaft extends at least partially within the inner cavity of the vessel body;

[0008] A cleaning device includes a cleaning tank arranged around a stirring shaft, a cleaning pipe extending from the cleaning tank to the inner wall of the vessel body, and a fixing component that fixes the cleaning tank to the stirring shaft, so that when the stirring shaft is driven to rotate, the cleaning device rotates synchronously and releases cleaning liquid from the cleaning tank to the inner wall of the vessel body through the cleaning pipe; and...

[0009] The feed pipe is configured to allow cleaning fluid to be injected into the cleaning tank from outside the vessel.

[0010] In some embodiments, the cleaning tank is a cone shape that is wider at the top and narrower at the bottom, and has an opening at the top, with one end of the feed tube extending to the opening at the top.

[0011] In some embodiments, the distance between the cleaning device and the upper end of the stirring shaft is 1 / 5 to 1 / 2 of the overall length of the stirring shaft.

[0012] In some embodiments, the cleaning device includes at least two cleaning pipes extending from the bottom of the side wall of the cleaning tank, and a nozzle is connected to one end of the cleaning pipe facing the inner wall of the vessel.

[0013] In some embodiments, the cleaning tank is composed of at least two cleaning tank units arranged circumferentially. The multiple cleaning tank units are independently formed and each is connected to a cleaning tube. The cleaning tank unit has a fan-shaped ring that fits against the stirring shaft. The fan-shaped rings of the multiple cleaning tank units together form a ring surrounding the stirring shaft.

[0014] In some embodiments, the fixing components are bolts passing through adjacent cleaning tank units and nuts threadedly connected to the bolts.

[0015] In some embodiments, the cleaning device further includes an auxiliary fixing component, which is connected to the bottom of the cleaning tank and fixedly connected to the stirring shaft.

[0016] In some embodiments, the auxiliary fixing component includes an auxiliary ring sleeved on the outside of the stirring shaft and an auxiliary fixing member for fixing the auxiliary ring on the stirring shaft. The auxiliary ring has at least one opening in the radial direction and extends outward at both ends of the opening to form a fixing portion. The auxiliary fixing member includes a first auxiliary fixing member for fixing the two ends of the fixing portion together.

[0017] In some embodiments, the auxiliary fastener further includes a second auxiliary fastener, an auxiliary nut is fixedly connected to the side wall of the auxiliary ring and has a corresponding opening, and an auxiliary bolt passes through the opening and is threadedly connected to the auxiliary nut.

[0018] In some embodiments, the stirring shaft is further provided with stirring paddles, and multiple sets of stirring paddles are arranged along the axial direction of the stirring shaft below the cleaning device.

[0019] In some embodiments, the vessel body is provided with a solid feed inlet.

[0020] The above technical solution involves introducing cleaning fluid into a cleaning tank, which then flows into a cleaning pipe. Under the rotation of the original stirring shaft of the reactor, the cleaning pipe throws the liquid material onto the inner wall of the reactor, washing away the solid material on the inner wall. This facilitates the uniform dispersion and full reaction of the reactants. The structure is simple and the operation is convenient. Attached Figure Description

[0021] Figure 1 This is an overall view of the self-cleaning reactor disclosed in this embodiment of the utility model;

[0022] Figure 2 This is an overall diagram of the cleaning device disclosed in the embodiments of this utility model;

[0023] Figure 3 This is a top view of the cleaning tank unit disclosed in an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Kettle body; 2. Drive unit; 3. Stirring shaft; 4. Stirring paddle; 5. Feed pipe; 6. Cleaning device; 61. Cleaning tank; 611. Cleaning tank unit; 6111. Fan-shaped ring; 612. Circular ring; 62. Cleaning pipe; 621. Nozzle; 63. Fixing component; 64. Auxiliary fixing component; 641. Auxiliary circular ring; 6411. Fixing part; 642. First auxiliary fixing component; 643. Second auxiliary fixing component; 6431. Auxiliary nut; 6432. Auxiliary bolt; 7. Solid feed inlet. Detailed Implementation

[0026] In this invention, unless otherwise stated, directional terms such as "up," "down," "left," "right," "inner," and "outer" are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] To address the problems of existing self-cleaning reactor cleaning devices, such as high requirements for sealing and the fit of various components, and complex structures, this invention provides a self-cleaning reactor, such as... Figure 1 and Figure 2As shown, the self-cleaning reactor includes: a reactor body 1; a stirring shaft 3, which extends at least partially within the inner cavity of the reactor body 1; a cleaning device 6, which includes a cleaning tank 61 surrounding the stirring shaft 3, a cleaning pipe 62 extending from the cleaning tank 61 to the inner wall of the reactor body 1, and a fixing component 63 fixing the cleaning tank 61 to the stirring shaft 3 so that when the stirring shaft 3 is driven to rotate, the cleaning device 6 rotates synchronously and releases the cleaning liquid in the cleaning tank 61 into the inner wall of the reactor body 1 through the cleaning pipe 62; and a feed pipe 5, which is configured to allow the cleaning liquid to be injected into the cleaning tank 61 from the outside of the reactor body 1. Through the above technical solution, the cleaning liquid enters the cleaning tank 61 from the outside of the reactor body 1 through the feed pipe 5 and flows into the cleaning pipe 62. The driving component 2 drives the stirring shaft 3 to rotate, causing the cleaning device 6 to rotate. The cleaning liquid in the cleaning pipe 62 is thrown onto the inner wall of the reactor body 1 under the action of centrifugal force to clean the inner wall of the reactor body 1. The driving component 2 can be any type of motor that can drive the stirring shaft 3 to rotate, as is available in the prior art. The cleaning device 6 is installed on the original stirring shaft 3 in the vessel body 1 and rotates synchronously with the stirring shaft 3. It has a simple structure and is easy to operate.

[0028] This self-cleaning reactor can be used for solid-liquid two-phase reactions. When solid materials are added, they tend to stick to the inner wall of the reactor body 1. Liquid materials are introduced into the feed pipe 5, and the stirring shaft 3 rotates, rinsing the solid materials adhering to the inner wall of the reactor body 1. The materials flow along the inner wall of the reactor body 1 into the reactor body 1, preventing solid materials from adhering to the inner wall, resulting in a more complete reaction. This also prevents solid materials from sticking together and forming hard clumps, improving the dispersion and uniformity of the reactants, and making subsequent cleaning of the reactor easier. This self-cleaning reactor can also be used after the reaction is complete by introducing cleaning liquid into the feed pipe 5 and adjusting the height of the cleaning device 6 on the stirring shaft 3 to clean areas at different heights on the inner wall of the reactor body 1.

[0029] In some embodiments, such as Figure 1 and Figure 2As shown, the cleaning tank 61 is a cone shape, wider at the top and narrower at the bottom, with an opening at the top. One end of the feed pipe 5 extends to this opening. To ensure stable rotation of the cleaning tank 61 and that all the cleaning fluid entering the cleaning tank 61 flows into the cleaning pipe 62 without residue, the cleaning tank 61 is designed as a cone shape, wider at the top and narrower at the bottom. For easy injection of cleaning fluid into the cleaning tank 61, the cleaning tank 61 is designed with an opening at the top. As long as the outlet of the feed pipe 5 is above the cleaning tank 61, the cleaning fluid can smoothly enter the cleaning tank 61, making the feeding operation simple and convenient. Furthermore, the feed pipe 5 is not connected to the cleaning tank 61, and the rotation of the cleaning tank 61 will not affect the feed pipe 5. Of course, the cleaning tank 61 can also be set to other shapes such as cylinders, or the upper end can be left unopened. The feed pipe 5 is sealed to the cleaning tank 61. When the feed pipe 5 adds cleaning liquid, the cleaning liquid is temporarily stored in the cleaning tank 61. After the cleaning liquid is added, the feed pipe 5 is separated from the cleaning tank 61, and the stirring shaft 3 rotates to throw the cleaning liquid onto the inner wall of the vessel 1.

[0030] In some embodiments, the distance between the cleaning device 6 and the upper end of the stirring shaft 3 is 1 / 5 to 1 / 2 of the overall length of the stirring shaft 3. Since most of the solid material adheres to the upper part of the inner wall of the vessel 1 when it is added to the vessel body 1, setting the distance between the cleaning device 6 and the upper end of the stirring shaft 3 to 1 / 5 to 1 / 2 of the overall length of the stirring shaft 3 effectively washes away the solid material adhering to the inner wall of the vessel body 1. The specific installation height of the cleaning device 6 can also be flexibly adjusted according to the amount of material fed, the properties of the material, and the amount of powder adhering to the wall.

[0031] In some embodiments, such as Figure 2 As shown, to maintain balance during rotation, the cleaning device 6 includes at least two cleaning pipes 62 extending from the bottom of the side wall of the cleaning tank 61. After the cleaning liquid enters the cleaning tank 61, it flows into the cleaning pipes 62 at the bottom of the cleaning tank 61 under the action of gravity. A nozzle 621 is connected to one end of the cleaning pipe 62 facing the inner wall of the vessel body 1. To ensure the cleaning range, the nozzle 621 can be a nozzle with a large spray width in the vertical direction, as is available in the prior art, or the nozzle 621 can be replaced with a vertically arranged three-way pipe with multiple nozzles arranged sequentially in the vertical direction of the pipe.

[0032] In some embodiments, such as Figure 2 and Figure 3 As shown, the cleaning tank 61 is composed of at least two cleaning tank units 611 arranged circumferentially. Each cleaning tank unit 611 is independently formed and connected to a cleaning pipe 62. Each cleaning tank unit 611 has a fan-shaped ring 6111 that fits against the stirring shaft 3. The fan-shaped rings 6111 of the multiple cleaning tank units 611 together form a ring 612 surrounding the stirring shaft 3. The cleaning tank 61 can also be a single integral tank surrounding the stirring shaft 3. Figure 2 The intermediate cleaning tank 61 consists of two cleaning tank units 611. Figure 3 Given Figure 2 The top view of the corresponding cleaning tank unit 611 shows that the angle corresponding to the fan-shaped ring 6111 is 180 degrees. Of course, there can also be three cleaning tank units 611, with the angle corresponding to the fan-shaped ring 6111 being 120 degrees, and so on. The number of cleaning tank units 611 can be arbitrary; or the angles corresponding to the fan-shaped rings 6111 of the cleaning tank units 611 that make up the cleaning tank 61 can be set to be different.

[0033] In some embodiments, such as Figure 2 and Figure 3 As shown, the fixing component 63 consists of bolts passing through adjacent cleaning tank units 611 and nuts threadedly connected to the bolts. The fan-shaped rings 6111 of multiple cleaning tank units 611 are attached to the stirring shaft 3, and the sides of adjacent cleaning tank units 611 are fixed together with bolts and nuts. This fixing process presses the rings 612 against the stirring shaft 3, thus fixing the cleaning tank 61 to the stirring shaft 3. To further strengthen the connection between the cleaning tank 61 and the stirring shaft 3, a gasket can be placed between the rings 612 and the stirring shaft 3. Alternatively, the fixing component 63 can be a nail, which passes through the rings 612 and the stirring shaft 3 sequentially to fix the cleaning tank 61 to the stirring shaft 3. When the cleaning tank 61 is a single unit, the fixing component 63 can be a ring fitted over the stirring shaft 3 and a connecting plate placed between the outer wall of the ring and the inner wall of the cleaning tank 61. A nail is then used to fix the cleaning tank 61 to the stirring shaft 3 sequentially through the rings 612 and the stirring shaft 3.

[0034] In some embodiments, such as Figure 2 As shown, to further increase the stability of the connection between the cleaning device 6 and the stirring shaft 3, the cleaning device 6 also includes an auxiliary fixing component 64. Since the cleaning tank 61 is a cone shape that is wider at the top and narrower at the bottom, it is easier to place the fixing component 63 on the upper part of the side wall of the adjacent cleaning tank unit 611. The lower part is not easy to place the fixing component 63 because it is far from the upper opening of the cleaning tank 61 and the cleaning tank 61 narrows at the lower part of the cleaning tank unit 611. Therefore, the auxiliary fixing component 64 is provided to connect to the lower part of the cleaning tank 61 and is fixedly connected to the stirring shaft 3, strengthening the stability of the connection between the lower half of the entire cleaning device 6 and the stirring shaft 3. Of course, the auxiliary fixing component 64 can also be omitted, and fixing components 63 can still be provided on both the upper and lower parts of the side wall of the adjacent cleaning tank unit 611.

[0035] In some embodiments, such as Figure 2As shown, the auxiliary fixing component 64 includes an auxiliary ring 641 sleeved around the stirring shaft 3 and an auxiliary fixing member that fixes the auxiliary ring 641 to the stirring shaft 3. The auxiliary ring 641 has at least one opening in its radial direction, and both ends extend outward from the opening to form fixing portions 6411. The auxiliary fixing member includes a first auxiliary fixing member 642 that fixes the two ends of the fixing portions 6411 together. The first auxiliary fixing member 642 fixes the two ends of the fixing portions 6411 together while simultaneously pressing the auxiliary ring 641 against the stirring shaft 3, thereby fixing the auxiliary fixing component 64 to the stirring shaft 3. The auxiliary fixing component 64 can be fixed to the bottom of the cleaning tank 61 by welding. Figure 2 As shown, the first auxiliary fixing member 642 consists of bolts and nuts passing through both ends of the fixing part 6411, and the contact surfaces at both ends of the fixing part 6411 can also be glued together. The auxiliary fixing member 64 is not limited to... Figure 2 The ring in the middle can also be provided with multiple L-shaped gaskets on the bottom surface of the cleaning tank 61 and the stirring shaft 3 below it. Screws are used to pass through the gaskets and the bottom surface of the cleaning tank 61, as well as the gaskets and the stirring shaft 3, in turn, to strengthen the connection between the bottom of the cleaning tank 61 and the stirring shaft 3, so that the cleaning tank 61 is more firmly fixed on the stirring shaft 3.

[0036] In some embodiments, such as Figure 2 As shown, the auxiliary fixing component also includes a second auxiliary fixing component 643. An auxiliary nut 6431 is fixedly connected to the side wall of the auxiliary ring 641, and an opening is provided accordingly. An auxiliary bolt 6432 passes through the opening and is threadedly connected to the auxiliary nut 6431. After the auxiliary bolt 6432 enters the opening on the side wall of the auxiliary ring 641, it presses against the stirring shaft 3, further strengthening the stability of the connection with the stirring shaft 3. The auxiliary nut 6431 can be fixed to the side wall of the auxiliary ring 641 by welding or other methods. Alternatively, the auxiliary nut 6431 can be omitted, and a thread can be provided in the opening on the side wall of the auxiliary ring 641, with the auxiliary bolt 6432 entering the opening and threadedly connected to the opening to press against the stirring shaft 3.

[0037] Figure 3 This is a top view of the cleaning tank unit 611. In this embodiment, the auxiliary fixing component 64 is also set in the same way as the cleaning tank 61. The auxiliary ring 641 has two openings in the radial direction, dividing the auxiliary ring 641 into two fan-shaped sections with an angle of 180 degrees. The auxiliary fixing component 64 is divided into two units in the circumferential direction, which are connected to the cleaning tank unit 611 respectively. This arrangement allows the two cleaning tank units 611 and the two auxiliary fixing component units to be directly attached together around the stirring shaft 3 when the cleaning device 6 is installed on the stirring shaft 3, and then fixed on the stirring shaft 3 by the fixing component 63 and the auxiliary fixing component 64, making the operation more convenient.

[0038] In some embodiments, such as Figure 1As shown, the stirring shaft 3 is also equipped with stirring paddles 4, and multiple sets of stirring paddles 4 are arranged along the axial direction of the stirring shaft 3 below the cleaning device 6. Only one set of stirring paddles 4 can be installed depending on the actual situation, or a combination of stirring paddles 4 can be selected. Figure 1 Mixing paddles of different shapes.

[0039] In some embodiments, such as Figure 1 As shown, the vessel body 1 is provided with a solid feed inlet 7 for feeding solid materials.

[0040] In use, the self-cleaning reactor of this invention first introduces a small amount of liquid material into the reactor body 1. This can be done through the solid feed inlet 7 or the feed pipe 5. Then, solid powder is added through the solid feed inlet 7. The powder adheres to the inner wall of the reactor body 1, mostly located on the upper part of the inner side wall. While the liquid material is introduced into the feed pipe 5, the stirring shaft 3 is activated to rotate. The liquid material enters the cleaning tank 61 and, under gravity, flows into the cleaning pipe 62. Under centrifugal force, it is thrown onto the side wall of the reactor body 1, washing away the powder, which then flows down the side wall into the reactor body 1. During the reaction in the reactor, the cleaning device 6 does not need to be removed, and the cleaning pipe 62 also acts as a stirrer during the reaction. This self-cleaning reactor can also be used to clean the inner wall of the reactor body 1 after the reaction is complete. Cleaning liquid is introduced into the feed pipe 5, and the cleaning liquid is thrown out from the cleaning pipe 62 to rinse the inner wall of the reactor body 1.

[0041] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A self-cleaning reactor, characterized in that, include: The vessel body (1); A stirring shaft (3) extends at least partially within the inner cavity of the vessel body (1); A cleaning device (6) comprising a cleaning tank (61) surrounding the stirring shaft (3), a cleaning pipe (62) extending from the cleaning tank (61) toward the inner wall of the vessel body (1), and a fixing member (63) fixing the cleaning tank (61) to the stirring shaft (3), such that when the stirring shaft (3) is driven to rotate, the cleaning device (6) rotates synchronously and releases the cleaning liquid in the cleaning tank (61) toward the inner wall of the vessel body (1) through the cleaning pipe (62); and, The feed pipe (5) is configured to allow the cleaning fluid to be injected into the cleaning tank (61) from the outside of the vessel body (1).

2. The self-cleaning reactor according to claim 1, characterized in that, The cleaning tank (61) is conical in shape, wider at the top and narrower at the bottom, and has an opening at the top. One end of the feed pipe (5) extends to this opening; and / or The distance between the cleaning device (6) and the upper end of the stirring shaft (3) is 1 / 5 to 1 / 2 of the overall length of the stirring shaft (3).

3. The self-cleaning reactor according to claim 1, characterized in that, The cleaning device (6) includes at least two cleaning pipes (62) extending from the bottom of the side wall of the cleaning tank (61), and a nozzle (621) is connected to one end of the cleaning pipe (62) facing the inner wall of the vessel body (1).

4. The self-cleaning reactor according to claim 1, characterized in that, The cleaning tank (61) is composed of at least two cleaning tank units (611) arranged circumferentially. Each of the multiple cleaning tank units (611) is independently formed and connected to the cleaning tube (62). Each cleaning tank unit (611) has a fan-shaped ring (6111) that fits against the stirring shaft (3). The fan-shaped rings (6111) of the multiple cleaning tank units (611) together form a ring (612) surrounding the stirring shaft (3).

5. The self-cleaning reactor according to claim 4, characterized in that, The fixing component (63) is a bolt passing through the adjacent cleaning tank unit (611) and a nut threadedly connected to the bolt.

6. The self-cleaning reactor according to claim 1, characterized in that, The cleaning device (6) also includes an auxiliary fixing component (64), which is connected to the bottom of the cleaning tank (61) and fixedly connected to the stirring shaft (3).

7. The self-cleaning reactor according to claim 6, characterized in that, The auxiliary fixing component (64) includes an auxiliary ring (641) sleeved on the outside of the stirring shaft (3) and an auxiliary fixing member that fixes the auxiliary ring (641) on the stirring shaft (3). The auxiliary ring (641) has at least one opening in the radial direction and extends outward at both ends of the opening to form a fixing part (6411). The auxiliary fixing member includes a first auxiliary fixing member (642) that fixes the two ends of the fixing part (6411) together.

8. The self-cleaning reactor according to claim 7, characterized in that, The auxiliary fastener also includes a second auxiliary fastener (643). An auxiliary nut (6431) is fixedly connected to the side wall of the auxiliary ring (641) and has an opening therecorrespondingly. An auxiliary bolt (6432) passes through the opening and is threadedly connected to the auxiliary nut (6431).

9. The self-cleaning reactor according to claim 1, characterized in that, The stirring shaft (3) is also provided with stirring paddles (4), and multiple sets of stirring paddles (4) are arranged along the axial direction of the stirring shaft (3) below the cleaning device (6).

10. The self-cleaning reactor according to claim 1, characterized in that, The reactor body (1) is provided with a solid feed inlet (7).

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