A p-nitrophenol reduction tank

Abstract

The utility model relates to a kind of p-nitrophenol reduction tank, comprising: tank body;First rotating rod, second rotating rod, one end of the first rotating rod is connected on the outer wall of the tank body, one end of the second rotating rod is connected on the outer wall of the tank body, and the first rotating rod and the second rotating rod are symmetrical relative to the axis of the tank body;Worm wheel, the worm wheel is installed on the first rotating rod, so that the worm wheel rotates when driving the first rotating rod rotates;And worm, the worm and the worm wheel engage, the worm rotates when driving the worm wheel rotates.Compared with the prior art tank body stationary, the tank body of the present application can be tilted or turned over according to demand, so that the material rarely stirred inside the tank body can also be stirred when the tank body is tilted, thereby improving the rate and efficiency of p-nitrophenol reduction reaction to some extent.

Description

Technical Field

[0001] This utility model relates to chemical reaction equipment, specifically to a p-nitrophenol reduction vessel. Background Technology

[0002] The reduction of p-nitrophenol is an organic reaction that converts a nitro group (-NO2) to an amino group (-NH3), with the core objective of reducing p-nitrophenol to p-aminophenol. This reaction has important applications in pharmaceutical synthesis (such as paracetamol intermediates), the dye industry, and wastewater treatment. Typically, the reduction of p-nitrophenol is carried out in a reaction vessel or reactor. In existing technologies, the reaction vessel or reactor includes a stirring mechanism and a vessel body. The stirring mechanism, located inside the vessel body, is used to stir the chemical reactants, thereby increasing the rate of the p-nitrophenol reduction reaction.

[0003] Chinese utility model patent application CN202220018518.8 discloses an evaporator for the reduction and crystallization of p-nitrophenol, comprising a metal shell of a reaction vessel. A reaction vessel end cover is bolted to the middle of the upper end of the metal shell. The end cover has threaded bolts at both ends. A fixing plate is fixedly mounted on the upper surface of the end cover. A motor is welded to the middle of the upper surface of the fixing plate. A discharge pipe is welded to one side of the bottom of the metal shell. A pump is fixedly connected to the upper end of the discharge pipe, and a three-way pipe is fixedly connected to one side of the upper end of the pump. However, the evaporator in this patent remains stationary. Although a stirring mechanism agitates the inside of the tank, some substances are not stirred or are only minimally stirred, which reduces the rate and efficiency of the p-nitrophenol reduction reaction to some extent. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a p-nitrophenol reduction vessel.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a p-nitrophenol reduction vessel, comprising: Tank body; A first rotating rod and a second rotating rod, one end of the first rotating rod being connected to the outer wall of the tank, and one end of the second rotating rod being connected to the outer wall of the tank, and the first rotating rod and the second rotating rod being symmetrical with respect to the axis of the tank; A worm gear is mounted on the first rotating rod, such that when the worm gear rotates, it drives the first rotating rod to rotate. And a worm gear, which meshes with the worm wheel, and the worm gear drives the worm wheel to rotate when it rotates.

[0006] Preferably, the device further includes a frame, a first fixing ring, and a second fixing ring. Both the first and second fixing rings are mounted on the frame. The first fixing ring has a first mounting through hole that extends through the first fixing ring. The second fixing ring has a second mounting through hole that extends through the second fixing ring. A second rotating rod extends into the first mounting through hole of the first fixing ring, and the diameter of the second rotating rod is smaller than the inner diameter of the first mounting through hole, thereby allowing the second rotating rod to rotate within the first mounting through hole. The first rotating rod extends into the second mounting through hole of the second fixing ring, and the diameter of the first rotating rod is smaller than the inner diameter of the second mounting through hole, thereby allowing the first rotating rod to rotate within the second mounting through hole.

[0007] Preferably, it also includes a catalyst addition pipe. The tank has an inner cavity, and the catalyst addition pipe is installed on the tank and communicates with the inner cavity of the tank.

[0008] Preferably, it also includes a stirring mechanism, which includes a rotating shaft and a preset number of stirring rods. The stirring rods are mounted on the rotating shaft, and at least a portion of the rotating shaft and the stirring rods are located in the inner cavity of the tank.

[0009] Preferably, the stirring mechanism further includes a drive motor, which is connected to the rotating shaft so that the drive motor drives the rotating shaft to rotate.

[0010] Preferably, it also includes a handwheel, which is mounted together with the worm gear, such that rotating the handwheel drives the worm gear to rotate.

[0011] Preferably, the first fixing ring is provided with a first threaded hole, which communicates with a first mounting through hole of the first fixing ring and is adapted to a first anti-sway bolt; the second fixing ring is provided with a second threaded hole, which communicates with a second mounting through hole of the second fixing ring and is adapted to a second anti-sway bolt; when the second rotating rod extends into the first mounting through hole, the first anti-sway bolt is screwed into the first threaded hole and presses against the second rotating rod; when the first rotating rod extends into the second mounting through hole, the second anti-sway bolt is screwed into the second threaded hole and presses against the first rotating rod.

[0012] The beneficial effects of this application are as follows: The p-nitrophenol reduction vessel provided by this application has the advantages of simple structure and convenient assembly. Secondly, given the inclusion of a worm gear and a worm shaft, with the worm gear mounted on a rotating rod welded to the vessel body, and the worm shaft meshing with the worm gear, the rotation of the worm shaft drives the worm gear to rotate, which in turn drives the rotating rod to rotate, thereby causing the vessel body to tilt or flip. Compared to the static vessel body in the prior art, the vessel body of this application can tilt or flip as needed, allowing substances that are rarely stirred inside the vessel to be stirred when the vessel is tilted, thus improving the rate and efficiency of the p-nitrophenol reduction reaction to a certain extent. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a p-nitrophenol reduction vessel provided by the present invention.

[0014] Figure 2 This is another structural schematic diagram of a p-nitrophenol reduction vessel provided by this utility model.

[0015] Figure 3 This is another structural schematic diagram of a p-nitrophenol reduction vessel provided by this utility model.

[0016] Figure 4 A schematic diagram of the stirring mechanism of a p-nitrophenol reduction tank provided by this utility model.

[0017] Figure 5 A schematic diagram of the frame of a p-nitrophenol reduction vessel provided by this utility model. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0019] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0020] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the objects being described and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages).

[0021] Please refer to Figure 1-5 This application provides a p-nitrophenol reduction vessel (hereinafter referred to as "the reduction vessel"), which includes: Tank 8; A first rotating rod 4 and a second rotating rod 9 are connected, with one end of the first rotating rod 4 connected to the outer wall of the tank body 8 and one end of the second rotating rod 9 connected to the outer wall of the tank body 8. The first rotating rod 4 and the second rotating rod 9 are symmetrical with respect to the axis of the tank body 8. A worm gear 5 is mounted on the first rotating rod 4, so that when the worm gear 5 rotates, it drives the first rotating rod 4 to rotate. The system includes a worm gear 6, which meshes with the worm wheel 5. When the worm gear 6 rotates, it drives the worm wheel 5 to rotate. In this application, the first rotating rod 4 is fixedly connected to the tank body 8 by welding. The first rotating rod 4 and the worm wheel 5 are installed together by a key connection or an interference fit, so that the rotation of the worm wheel 5 drives the first rotating rod 4 to rotate. Thus, by manually rotating the worm gear 6, the worm wheel 5 is driven to rotate, which in turn drives the first rotating rod 4 to rotate. The rotation of the first rotating rod 4 causes the tank body 8 to tilt. When the tank body 8 tilts, the substances involved in the chemical reaction inside the tank body 8 also shift, allowing the stirring mechanism to agitate substances that cannot be stirred in the normal position under tilted conditions.

[0022] In some embodiments of this application, please refer to Figure 1-4The reduction tank also includes a frame 1, a first fixing ring 2, and a second fixing ring 3. Both the first fixing ring 2 and the second fixing ring 3 are mounted on the frame 1. The first fixing ring 2 has a first mounting through hole 200, which extends through the first fixing ring 2. The second fixing ring 3 has a second mounting through hole 300, which extends through the second fixing ring 3. A second rotating rod 9 extends into the first mounting through hole 200 of the first fixing ring 2, and the diameter of the second rotating rod 9 is smaller than the inner diameter of the first mounting through hole 200, thereby allowing the second rotating rod 9 to rotate within the first mounting through hole 200. A first rotating rod 4 extends into the second mounting through hole 300 of the second fixing ring 3, and the diameter of the first rotating rod 4 is smaller than the inner diameter of the second mounting through hole 300, thereby allowing the first rotating rod 4 to rotate within the second mounting through hole 300. In this way, on the one hand, the first rotating rod 4 and the second rotating rod 9 are installed on the frame 1, and on the other hand, the first rotating rod 4 and the second rotating rod 9 can rotate relative to the frame 1, so that the tank 8 can tilt and flip relative to the frame 1 when tilting and flipping.

[0023] In some embodiments of this application, please refer to Figure 1-4 The reduction vessel also includes a catalyst addition pipe 10. The vessel body 8 has an inner cavity 80. The catalyst addition pipe 10 is installed on the vessel body 8 and communicates with the inner cavity 80 of the vessel body 8. In this application, a connector hole (not shown in the figure) is provided on the vessel body 8. The catalyst addition pipe 10 is inserted into the connector hole, and then the gap between the connector hole and the catalyst addition pipe 10 is sealed (for example, by sealing glue or welding). This allows the catalyst addition pipe 10 to be both installed on the vessel body 8 and communicate with the inner cavity 80 of the vessel body 8.

[0024] In some embodiments of this application, please refer to Figure 1-4 The reduction tank also includes a stirring mechanism 11, which comprises a rotating shaft 112 and a predetermined number of stirring rods 113. The stirring rods 113 are mounted on the rotating shaft 112, and at least a portion of the rotating shaft 112 and the stirring rods 113 are located within the inner cavity 80 of the tank body 8. Thus, when the rotating shaft 112 rotates, it drives the stirring rods 113 to rotate, and the rotation of the stirring rods 113 stirs the substances participating in the reduction reaction of p-nitrophenol within the inner cavity 80 of the tank body 8, thereby accelerating the reduction reaction rate of p-nitrophenol.

[0025] In some embodiments of this application, please refer to Figure 1-4The stirring mechanism 11 further includes a drive motor 111, which is connected to the rotating shaft 112, thereby causing the drive motor 111 to drive the rotating shaft 112 to rotate. In this application, the drive motor 111 has a rotating shaft (not shown, but common knowledge known to those skilled in the art), and the rotating shaft of the drive motor 111 is connected to the rotating shaft 112 via a coupling. Of course, they can also be connected together in other ways.

[0026] In some embodiments of this application, please refer to Figure 1-5 The reduction tank also includes a handwheel 7, which is mounted together with the worm gear 6, so that rotating the handwheel 7 drives the worm gear 6 to rotate.

[0027] In some embodiments of this application, please refer to Figure 1-5 The first fixing ring 2 has a first threaded hole 201, which communicates with the first mounting through hole 200 of the first fixing ring 2 and is adapted to the first anti-sway bolt 12. The second fixing ring 3 has a second threaded hole 301, which communicates with the second mounting through hole 300 of the second fixing ring 3 and is adapted to the second anti-sway bolt 13. When the second rotating rod 9 is inserted into the first mounting through hole 200, the first anti-sway bolt 12 is screwed into the first threaded hole 201 and presses against the second rotating rod 9. When the first rotating rod 4 is inserted into the second mounting through hole 300, the second anti-sway bolt 13 is screwed into the second threaded hole 301 and presses against the first rotating rod 4. In this way, the probability of swaying when the first rotating rod 4 and the second rotating rod 9 rotate is reduced, making the tank 8 more stable when tilted or overturned.

[0028] The p-nitrophenol reduction vessel provided in this application has the advantages of simple structure and convenient assembly. Furthermore, it is equipped with a worm gear and a worm shaft. The worm gear is mounted on a rotating rod, which is welded to the vessel body. The worm shaft meshes with the worm gear; when the worm shaft rotates, it drives the worm gear to rotate, which in turn drives the rotating rod to rotate, thereby causing the vessel body to tilt or flip. Compared to the static vessel body in the prior art, the vessel body of this application can tilt or flip as needed, allowing substances that are rarely stirred inside the vessel to be stirred when the vessel is tilted, thus improving the rate and efficiency of the p-nitrophenol reduction reaction to a certain extent.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A p-nitrophenol reduction vessel, characterized in that, include: Tank body; A first rotating rod and a second rotating rod, one end of the first rotating rod being connected to the outer wall of the tank, and one end of the second rotating rod being connected to the outer wall of the tank, and the first rotating rod and the second rotating rod being symmetrical with respect to the axis of the tank; A worm gear is mounted on the first rotating rod, such that when the worm gear rotates, it drives the first rotating rod to rotate. A worm gear that meshes with a worm wheel; when the worm gear rotates, it drives the worm wheel to rotate. The system comprises a frame, a first fixing ring, and a second fixing ring, both of which are mounted on the frame. The first fixing ring has a first mounting through hole that extends through the first fixing ring. The second fixing ring has a second mounting through hole that extends through the second fixing ring. A second rotating rod extends into the first mounting through hole of the first fixing ring, and the diameter of the second rotating rod is smaller than the inner diameter of the first mounting through hole, thereby allowing the second rotating rod to rotate within the first mounting through hole. The first rotating rod also extends into the second mounting through hole of the second fixing ring, and the diameter of the first rotating rod is smaller than the inner diameter of the second mounting through hole, thereby allowing the first rotating rod to rotate within the second mounting through hole. A catalyst addition pipeline is provided, wherein the tank has an inner cavity, and the catalyst addition pipeline is installed on the tank on one hand, and communicates with the inner cavity of the tank on the other hand. A handwheel is mounted together with the worm gear, such that rotating the handwheel causes the worm gear to rotate.

2. The p-nitrophenol reduction vessel according to claim 1, characterized in that, It also includes a first anti-sway bolt and a second anti-sway bolt. The first fixing ring is provided with a first threaded hole, which communicates with a first mounting through hole of the first fixing ring and is adapted to the first anti-sway bolt. The second fixing ring is provided with a second threaded hole, which communicates with a second mounting through hole of the second fixing ring and is adapted to the second anti-sway bolt.

3. The p-nitrophenol reduction vessel according to claim 2, characterized in that, When the second rotating rod extends into the first mounting through hole, the first anti-sway bolt is screwed into the first threaded hole and presses against the second rotating rod; when the first rotating rod extends into the second mounting through hole, the second anti-sway bolt is screwed into the second threaded hole and presses against the first rotating rod.

4. The p-nitrophenol reduction vessel according to claim 1, characterized in that, It also includes a stirring mechanism, which includes a rotating shaft and a preset number of stirring rods. The stirring rods are mounted on the rotating shaft, and at least a portion of the rotating shaft and the stirring rods are located in the inner cavity of the tank.

5. The p-nitrophenol reduction vessel according to claim 4, characterized in that, The stirring mechanism also includes a drive motor, which is connected to the rotating shaft so that the drive motor drives the rotating shaft to rotate.

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