Reaction kettle convenient to clean for producing hydroxypropyl chitosan

By introducing a drive mechanism and a cleaning mechanism into the reactor, and utilizing the design of the water spray holes and cleaning components on the stirring shaft, the problem of inconvenient cleaning of the inner wall of the reactor is solved, achieving uniform spraying and brushing and convenient brush replacement, thus improving the cleaning effect.

CN223641835UActive Publication Date: 2025-12-09JINAN XINZHIYUAN BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423168847.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-12-09
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

The existing reaction vessels lack effective scrubbing measures during the cleaning process, resulting in poor cleaning effect, especially when producing hydroxypropyl chitosan, it is difficult to clean them thoroughly.

Method used

A reactor with a drive mechanism and a cleaning mechanism was designed. The drive mechanism drives the cleaning mechanism through a stirring shaft. The stirring shaft is hollow and has water spray holes. Together with the cleaning component, it sprays and scrubs the inner wall of the reactor. The cleaning component is detachably connected by standard bolts, which makes it easy to replace the bristles.

Benefits of technology

It achieves a uniform spraying and scrubbing effect on the inner wall of the reactor, improves cleanliness, and facilitates the replacement of brush bristles, thereby enhancing cleaning efficiency and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle convenient to clean for producing hydroxypropyl chitosan, which comprises a reaction kettle barrel, a driving mechanism is arranged at the top end of the reaction kettle barrel, a cleaning mechanism is connected to the bottom end of the driving mechanism, and the driving mechanism comprises a protective shell. A driving motor is fixedly installed in the protective shell, the output end of the driving motor is fixedly connected with a driving rotating shaft, the driving rotating shaft is movably connected with a stirring shaft through a synchronous belt, the stirring shaft is of a hollow design, a water passing cavity is formed in the stirring shaft, and a rotating joint is installed at the top end of the stirring shaft; the top end of the stirring shaft is connected with a water inlet pipe through a rotary connector, and water spraying holes are formed in the two sides of the stirring shaft. The driving motor arranged on the driving mechanism drives the driving rotating shaft to rotate, and the driving rotating shaft is movably connected with the stirring shaft through the synchronous belt, so that the stirring shaft is driven to rotate synchronously, and the strip-shaped stirring rods and the semicircular stirring rods are further driven to rotate.
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Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically to a reaction vessel for producing hydroxypropyl chitosan that is easy to clean. Background Technology

[0002] Reactors are widely used in petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food industries. They are pressure vessels used to complete processes such as vulcanization, nitration, hydrogenation, hydrocarbonation, polymerization, and condensation. Examples include reactors, reaction vessels, decomposers, and polymerization kettles. Materials generally include carbon manganese steel, stainless steel, zirconium, nickel-based alloys, and other composite materials. In a broad sense, a reactor is a stainless steel container where physical or chemical reactions occur. The structural design and parameter configuration of the container are tailored to different process requirements. Design conditions, processes, inspection, manufacturing, and acceptance must adhere to relevant technical standards to achieve the heating, evaporation, cooling, and low-to-high-speed mixing reaction functions required by the process.

[0003] As disclosed in CN216149748U, an easy-to-clean reactor includes a protective shell with a sealing cover on top. A fixed box is fixedly connected inside the sealing cover, and a rotating mechanism is located inside the fixed box. Two connecting plates are located inside the protective shell, and multiple stirring components are fixedly connected to the bottom of each connecting plate. Each connecting plate has a moving mechanism inside, and a lifting plate is located between the two connecting plates. The advantages are: the moving mechanism can adjust the extension and retraction of the scraper within the connecting plates, and the rotating mechanism can adjust the lifting and lowering of the connecting plates, thus achieving the effect of adjusting the scraper's movement. When the lifting plate rotates, it provides a simultaneous lifting and rotating cleaning effect, allowing for a more thorough cleaning of the inner wall of the protective shell. Simultaneously, the stirring components connected to the bottom of the connecting plates also provide a stirring effect. However, this invention lacks measures for scrubbing the inner wall of the reactor, making it difficult to ensure the cleaning effect. Therefore, we propose an easy-to-clean reactor for producing hydroxypropyl chitosan, solving the problem of inconvenient scrubbing in this invention and improving its practical effect. Utility Model Content

[0004] The purpose of this invention is to provide a reaction vessel for the production of hydroxypropyl chitosan that is easy to clean, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cleanable reactor for producing hydroxypropyl chitosan includes a reactor body, a drive mechanism at the top of the reactor body, and a cleaning mechanism connected to the bottom of the drive mechanism.

[0007] The drive mechanism includes a protective housing, inside which a drive motor is fixedly installed. The output end of the drive motor is fixedly connected to a drive shaft. The drive shaft is movably connected to a stirring shaft via a synchronous belt. The stirring shaft is hollow and has a water-passing cavity inside. A rotary joint is installed at the top of the stirring shaft, and a water inlet pipe is connected to the top of the stirring shaft via the rotary joint. Water spray holes are provided on both sides of the stirring shaft.

[0008] Preferably, the cleaning mechanism includes a fixing sleeve, the fixing sleeve is detachably installed on the outside of the stirring shaft, a strip-shaped stirring rod is fixedly arranged on both sides of the fixing sleeve, and a cleaning component is fixedly installed at one end of the strip-shaped stirring rod.

[0009] Preferably, the cleaning component includes a mounting block, a strip rod is fixedly disposed on one side of the mounting block, and bristles are disposed on one side of the strip rod.

[0010] Preferably, the strip-shaped stirring rod has a first screw hole at one end near the mounting block, and the mounting block has a second screw hole corresponding to the first screw hole. The first screw hole and the second screw hole are fitted with standard bolts.

[0011] Preferably, a semi-circular stirring rod is fixedly installed at the bottom end of the stirring shaft, and bristles are provided on the outer side of the semi-circular stirring rod, with the bristles contacting the inner wall of the reactor cylinder.

[0012] Preferably, the reactor body is provided with an inlet pipe at the top and an outlet pipe at the bottom.

[0013] Preferably, two hanging rings are fixedly provided at the top of the reactor body and are symmetrically arranged around the center of the top surface of the reactor body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This is a reaction vessel for producing hydroxypropyl chitosan that is easy to clean. During the cleaning process of the reaction vessel, the operator connects the water inlet pipe to an external clean water source. Since the water inlet pipe is connected to the top of the stirring shaft through a rotary joint, it does not affect the rotation of the stirring shaft. In addition, the stirring shaft is hollow and has water spray holes on both sides, so that water flows into the interior of the stirring shaft and is sprayed out from the water spray holes to the inner wall of the reaction vessel. Combined with the cleaning components, the inner wall of the reaction vessel is scrubbed, thereby achieving a uniform spray scrubbing effect.

[0016] 2. This easy-to-clean reactor for producing hydroxypropyl chitosan features a semi-circular stirring rod that adapts to the curved design of the reactor's inner bottom surface, ensuring thorough cleaning of the entire reactor interior. The cleaning component's mounting block is detachably connected to the strip-shaped stirring rod via standard bolts, and the semi-circular stirring rod is detachably connected to the stirring shaft via a fixing sleeve, facilitating easy replacement of the brush bristles and improving maintenance convenience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the stirring shaft structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model.

[0021] Figure 5 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0022] In the diagram: 100, Reactor body; 101, Inlet pipe; 102, Outlet pipe; 103, Hanging ring; 200, Protective outer shell; 201, Drive motor; 202, Active shaft; 203, Synchronous belt; 204, Stirring shaft; 205, Water passage cavity; 206, Rotary joint; 207, Water inlet pipe; 208, Water spray hole; 300, Fixing sleeve; 301, Strip stirring rod; 302, Cleaning assembly; 303, Semi-circular stirring rod; 400, Mounting block; 401, Strip rod; 402, Brush bristles; 403, First screw hole; 404, Second screw hole; 405, Standard bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 As shown, this utility model provides a technical solution:

[0025] A cleanable reactor for producing hydroxypropyl chitosan includes a reactor body 100. A drive mechanism is installed at the top of the reactor body 100, and a cleaning mechanism is connected to the bottom of the drive mechanism. The drive mechanism includes a protective shell 200, and a drive motor 201 is fixedly installed inside the protective shell 200. A drive shaft 202 is fixedly connected to the output end of the drive motor 201. A stirring shaft 204 is movably connected to the drive shaft 202 via a synchronous belt 203. The stirring shaft 204 is hollow and has a water-passing cavity 205 inside. A rotary joint 206 is installed at the top of the stirring shaft 204, and a water inlet pipe 207 is connected to the top of the stirring shaft 204 via the rotary joint 206. Water spray holes 208 are opened on both sides of the stirring shaft 204.

[0026] In this embodiment, preferably, the cleaning mechanism includes a fixed sleeve 300, the fixed sleeve 300 is detachably installed on the outside of the stirring shaft 204, a strip-shaped stirring rod 301 is fixedly arranged on both sides of the fixed sleeve 300, and a cleaning component 302 is fixedly installed at one end of the strip-shaped stirring rod 301.

[0027] In this embodiment, preferably, the cleaning component 302 includes a mounting block 400, a strip rod 401 is fixedly disposed on one side of the mounting block 400, and bristles 402 are disposed on one side of the strip rod 401.

[0028] In this embodiment, preferably, the strip-shaped stirring rod 301 has a first screw hole 403 at one end near the mounting block 400, and the mounting block 400 has a second screw hole 404 corresponding to the first screw hole 403. The first screw hole 403 and the second screw hole 404 are fitted with standard bolts 405.

[0029] In this embodiment, preferably, a semi-circular stirring rod 303 is fixedly installed at the bottom end of the stirring shaft 204, and bristles 402 are provided on the outer side of the semi-circular stirring rod 303, with the bristles 402 in contact with the inner wall of the reactor body 100.

[0030] In this embodiment, preferably, the top of the reactor body 100 is provided with an inlet pipe 101 and the bottom is provided with an outlet pipe 102.

[0031] In this embodiment, preferably, two hanging rings 103 are fixedly provided at the top of the reactor body 100 and are symmetrically arranged around the center of the top surface of the reactor body 100.

[0032] In this embodiment, a hygienic reaction vessel for producing hydroxypropyl chitosan is used such that, during operation, a drive motor 201 drives a drive shaft 202 to rotate. The drive shaft 202 is movably connected to a stirring shaft 204 via a synchronous belt 203, thereby driving the stirring shaft 204 to rotate synchronously. This further drives the strip stirring rod 301 and the semi-circular stirring rod 303 to rotate. A cleaning component 302 is fixedly installed at one end of the strip stirring rod 301, thereby driving the strip rod 401 and the bristles 402 to perform cleaning operations along the inner wall of the reaction vessel cylinder 100. During the cleaning of the reactor vessel 100, the workers connect the water inlet pipe 207 to an external clean water source. Since the water inlet pipe 207 is connected to the top of the stirring shaft 204 via a rotary joint 206, it does not affect the rotation of the stirring shaft 204. Furthermore, the stirring shaft 204 has a hollow design and spray holes 208 on both sides, allowing water to enter the interior of the stirring shaft 204 and spray out from the spray holes 208 onto the inner wall of the reactor vessel 100. This, combined with the cleaning component 302's brushing of the inner wall of the reactor vessel 100, achieves a spraying and brushing effect, improving the cleanliness of the vessel. The mounting block 400 of the cleaning component 302 is detachably connected to the strip-shaped stirring rod 301 via standard bolts 405, and the semi-circular stirring rod 303 is detachably connected to the stirring shaft 204 via a fixing sleeve 300, facilitating the replacement of the brush bristles 402 later and improving maintenance convenience.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cleanable reaction vessel for producing hydroxypropyl chitosan, comprising a reaction vessel body (100), characterized in that: The top of the reactor vessel (100) is provided with a driving mechanism, and the bottom of the driving mechanism is connected to a cleaning mechanism; The drive mechanism includes a protective housing (200), inside which a drive motor (201) is fixedly installed. The output end of the drive motor (201) is fixedly connected to a drive shaft (202). The drive shaft (202) is movably connected to a stirring shaft (204) via a synchronous belt (203). The stirring shaft (204) is hollow and has a water-passing cavity (205) inside. A rotary joint (206) is installed at the top of the stirring shaft (204), and a water inlet pipe (207) is connected to the top of the stirring shaft (204) via the rotary joint (206). Water spray holes (208) are opened on both sides of the stirring shaft (204).

2. The easy-to-clean reaction vessel for producing hydroxypropyl chitosan according to claim 1, characterized in that: The cleaning mechanism includes a fixed sleeve (300), the fixed sleeve (300) is detachably installed on the outside of the stirring shaft (204), a strip stirring rod (301) is fixedly arranged on both sides of the fixed sleeve (300), and a cleaning component (302) is fixedly installed at one end of the strip stirring rod (301).

3. The easy-to-clean reaction vessel for producing hydroxypropyl chitosan according to claim 2, characterized in that: The cleaning component (302) includes a mounting block (400), a strip rod (401) is fixedly provided on one side of the mounting block (400), and bristles (402) are provided on one side of the strip rod (401).

4. The easy-to-clean reaction vessel for producing hydroxypropyl chitosan according to claim 2, characterized in that: The strip-shaped stirring rod (301) has a first screw hole (403) at one end near the mounting block (400), and the mounting block (400) has a second screw hole (404) corresponding to the first screw hole (403). The first screw hole (403) and the second screw hole (404) are fitted with standard bolts (405).

5. The easy-to-clean reaction vessel for producing hydroxypropyl chitosan according to claim 1, characterized in that: A semi-circular stirring rod (303) is fixedly installed at the bottom end of the stirring shaft (204). Brush bristles (402) are provided on the outer side of the semi-circular stirring rod (303), and the brush bristles (402) are in contact with the inner wall of the reactor body (100).

6. A cleanable reaction vessel for producing hydroxypropyl chitosan according to claim 5, characterized in that: The reactor body (100) is provided with an inlet pipe (101) at the top and an outlet pipe (102) at the bottom.

7. A cleanable reaction vessel for producing hydroxypropyl chitosan according to claim 6, characterized in that: Two hanging rings (103) are fixedly installed at the top of the reactor body (100) and are symmetrically arranged around the center of the top surface of the reactor body (100).

Citation Information

Patent Citations

  • Reaction kettle convenient to clean

    CN216149748U