P-nitroaniline recovery device

Abstract

The utility model discloses a p-nitroaniline recovery device which comprises a falling film absorption tower body, and the top of the falling film absorption tower body is fixedly connected with a fixing ring. The rotation of the worm drives the worm gear to rotate correspondingly, along with the rotation of the worm gear, the worm gear further drives the supporting rod to rotate, the rotation of the supporting rod enables the connecting rod to rotate along with the supporting rod, and the rotation action of the connecting rod is transmitted to the torsion ring, so that the torsion ring is driven by the round rod to rotate. According to the falling film absorption tower, the worm is rotated to drive the clamping block to rotate clockwise, the clamping block can be separated from the fixing rod through the rotation action, then, a user needs to turn over the worm, the rotating frame can turn over towards the right side, then, the user can move the sealing cover upwards to open the sealing cover, and the falling film absorption tower body achieves the effect of being convenient to overhaul and maintain; and an existing mode of replacing and overhauling by disassembling a plurality of bolts is replaced, so that the effect of facilitating overhauling is achieved.

Description

Technical Field

[0001] This utility model relates to the field of p-nitroaniline recovery technology, specifically a p-nitroaniline recovery device. Background Technology

[0002] p-Nitroaniline is an organic compound with the chemical formula C6H6N2O2. It is a yellow needle-like crystal, highly toxic, easily sublimed, slightly soluble in cold water, and soluble in boiling water, ethanol, ether, benzene, and acid solutions. It is widely used as an intermediate in various chemical products such as dyes, pharmaceuticals, and pesticides.

[0003] In the processing and recycling of p-nitroaniline, an absorption tower is needed to recover the waste gas. Currently, a falling film absorption tower is used in the recycling process. In the current use of falling film absorption towers, the internal absorption pipes need to be cleaned regularly. The absorption pipes need to be removed for cleaning and maintenance. The inspection cover of the falling film absorption tower has multiple bolt seals, which is time-consuming and laborious to disassemble, and cannot be quickly removed for inspection and maintenance.

[0004] Therefore, it is necessary to redesign and modify the falling film absorption tower to effectively prevent the current use of falling film absorption towers, which requires regular cleaning of the internal absorption tubes, removal of the absorption tubes for cleaning and maintenance, and the fact that the inspection cover of the falling film absorption tower has multiple bolt seals, making disassembly time-consuming and laborious, and preventing quick removal for inspection and maintenance. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a p-nitroaniline recovery device with the advantage of efficient maintenance. It solves the problems of current falling film absorption towers, which require regular cleaning of the internal absorption tubes, removal of the absorption tubes for cleaning and maintenance, and the fact that the maintenance cover of the falling film absorption tower has multiple bolt seals, making disassembly time-consuming and labor-intensive, and unable to be quickly removed for maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a p-nitroaniline recovery device, comprising a falling film absorption tower body, a fixing ring fixedly connected to the top of the falling film absorption tower body, a sealing cover provided on the top of the fixing ring, a transmission assembly movably connected to the top of the sealing cover, a torsion assembly provided on the right side of the falling film absorption tower body, a support plate fixedly connected to the bottom surface of the falling film absorption tower body, and an absorption tube provided inside the falling film absorption tower body.

[0007] In a preferred embodiment of this invention, the transmission assembly includes a fixed rod, which is fixedly connected to the top of a fixed ring. The surface of the sealing cover is slidably connected to the fixed rod, and a support rod is movably connected to the top of the sealing cover.

[0008] In a preferred embodiment of this invention, the torsion assembly includes a connecting rod, which is fixedly connected to the surface of the support rod. A torsion ring, fixedly connected to the connecting rod, is provided at the top of the sealing cover. A round rod is fixedly connected to the bottom of the torsion ring, and a clamping block is fixedly connected to the bottom of the round rod. The clamping block is slidably connected to the fixed rod. A protective frame is fixedly connected to the right side of the falling film absorption tower body. A rotating frame is movably connected to the top of the protective frame. A worm gear is movably connected to the left side of the rotating frame. A worm wheel, meshing with the worm gear, is fixedly connected to the top of the support rod surface.

[0009] In a preferred embodiment of this invention, a limiting ring is fixedly connected to the top of the fixing rod, and the limiting ring is located at the top of the clamping block.

[0010] As a preferred embodiment of this invention, a rotating disk is fixedly connected to the front side of the worm gear, and the rotating disk is located on the front side of the falling film absorption tower body.

[0011] As a preferred embodiment of this invention, a reinforcing rod is fixedly connected to the inner side of the rotating frame, and the number of the reinforcing rods is several.

[0012] In a preferred embodiment of this invention, the number of fixing rods is several, and the fixing rods are evenly distributed in a ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model utilizes the rotation of a worm gear to drive a worm wheel, which in turn rotates the support rod. The rotation of the support rod, in turn, causes the connecting rod to rotate. This rotation is transmitted to the torsion ring, which, through the action of the round rod, causes the locking block to rotate clockwise. This rotation allows the locking block to disengage from the fixed rod. Next, the user needs to flip the worm gear, allowing the rotating frame to flip to the right. Then, the user can move the sealing cover upwards to open it, making the falling film absorption tower easier to inspect and maintain. This replaces the existing method of replacing and maintaining multiple bolts, thus facilitating maintenance.

[0015] 2. Through the design of the transmission component, this utility model can not only accurately limit the sealing cover and ensure its stability during normal operation and rotation, but also easily remove the absorption tube for necessary maintenance and cleaning. This design greatly improves the safety of the equipment and makes the operation more convenient and safer for users.

[0016] 3. This utility model achieves effective transmission and rotation of the worm gear by setting up a torsion assembly. This design allows the worm gear to smoothly drive the worm wheel to rotate, thereby rotating the support rod and the torsion ring, which in turn facilitates the movement of the locking block. This design not only improves operational flexibility but also enhances the stability and reliability of the overall structure.

[0017] 4. This utility model, by setting a limiting ring, can precisely limit the position of the top of the fixing rod. This design not only improves overall safety but also allows the fixing rod to be effectively clamped and fixed with the clamping block, further ensuring the safety and stability of the equipment during operation.

[0018] 5. This utility model, through the setting of the rotating disk, can effectively rotate the front of the worm, ensuring that the worm can rotate smoothly. At the same time, this design also enables the worm to drive the worm wheel to rotate, thereby improving the operating efficiency and safety of the equipment.

[0019] 6. By setting reinforcing rods, this utility model can effectively strengthen the rotating frame, ensuring the strength and durability of the rotating frame. This design not only improves the load-bearing capacity of the rotating frame, but also provides better support and protection for the rotating frame, thereby extending the service life of the equipment.

[0020] 7. By setting the number of fixing rods to several, this utility model can more securely fix the sealing cover, ensuring the stability of the sealing cover during operation. In addition, this design also makes it easy to quickly open the sealing cover for daily maintenance and repair work, greatly improving work efficiency and ease of operation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 This is a three-dimensional exploded view of the structure of this utility model;

[0023] Figure 3 This is a three-dimensional bottom view of the structure of this utility model;

[0024] Figure 4 The structure of this utility model Figure 2 Enlarged diagram of point A in the middle.

[0025] In the diagram: 1. Falling film absorption tower body; 2. Fixing ring; 3. Sealing cover; 4. Transmission assembly; 41. Fixing rod; 42. Support rod; 5. Torsion assembly; 51. Connecting rod; 52. Torsion ring; 53. Round rod; 54. Clamping block; 55. Protective frame; 56. Rotating frame; 57. Worm gear; 58. Worm wheel; 6. Support plate; 7. Absorption pipe; 8. Limiting ring; 9. Rotating disk; 10. Reinforcing rod. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 4 As shown, the present invention provides a p-nitroaniline recovery device, including a falling film absorption tower body 1, a fixing ring 2 fixedly connected to the top of the falling film absorption tower body 1, a sealing cover 3 provided on the top of the fixing ring 2, a transmission assembly 4 movably connected to the top of the sealing cover 3, a torsion assembly 5 provided on the right side of the falling film absorption tower body 1, a support plate 6 fixedly connected to the bottom of the surface of the falling film absorption tower body 1, and an absorption pipe 7 provided inside the falling film absorption tower body 1.

[0028] refer to Figure 4 The transmission assembly 4 includes a fixed rod 41, which is fixedly connected to the top of the fixed ring 2. The surface of the sealing cover 3 is slidably connected to the fixed rod 41, and a support rod 42 is movably connected to the top of the sealing cover 3.

[0029] As a technical optimization of this utility model, the transmission component 4 not only precisely limits the sealing cover 3 to ensure its stability during normal operation and rotation, but also allows the absorption tube 7 to be easily removed for necessary maintenance and cleaning. This design greatly improves the safety of the equipment and makes the operation more convenient and safer for users.

[0030] refer to Figure 4The torsion assembly 5 includes a connecting rod 51, which is fixedly connected to the surface of the support rod 42. The top of the sealing cover 3 is provided with a torsion ring 52, which is fixedly connected to the connecting rod 51. The bottom of the torsion ring 52 is fixedly connected to a round rod 53. The bottom of the round rod 53 is fixedly connected to a clamping block 54. The clamping block 54 is slidably connected to the fixed rod 41. The right side of the falling film absorption tower body 1 is fixedly connected to a protective frame 55. The top of the protective frame 55 is movably connected to a rotating frame 56. The left side of the rotating frame 56 is movably connected to a worm gear 57. The top of the surface of the support rod 42 is fixedly connected to a worm wheel 58 that meshes with the worm gear 57.

[0031] As a technical optimization of this utility model, the torsion assembly 5 is provided to achieve effective transmission and rotation of the worm gear 57. This design allows the worm gear 57 to smoothly drive the worm wheel 58 to rotate, thereby rotating the support rod 42 and the torsion ring 52, which in turn facilitates the movement of the clamping block 54. This design not only improves the flexibility of operation but also enhances the stability and reliability of the overall structure.

[0032] refer to Figure 4 A limiting ring 8 is fixedly connected to the top of the fixing rod 41, and the limiting ring 8 is located on the top of the clamping block 54.

[0033] As a technical optimization of this utility model, by setting a limiting ring 8, the top of the fixing rod 41 can be precisely limited and controlled. This design not only improves the overall safety, but also allows the fixing rod 41 to be effectively clamped and fixed with the clamping block 54, further ensuring the safety and stability of the equipment during operation.

[0034] refer to Figure 3 The worm gear 57 is fixedly connected to the front of the rotating disk 9, which is located on the front of the falling film absorption tower body 1.

[0035] As a technical optimization of this utility model, the rotating disk 9 allows for effective rotation of the front of the worm 57, ensuring smooth rotation of the worm 57. At the same time, this design also enables the worm 57 to drive the worm wheel 58 to rotate, thereby improving the operating efficiency and safety of the equipment.

[0036] refer to Figure 4 The inner side of the rotating frame 56 is fixedly connected with a reinforcing rod 10, and there are several reinforcing rods 10.

[0037] As a technical optimization of this utility model, by setting the reinforcing rod 10, the rotation frame 56 can be effectively strengthened, ensuring the strength and durability of the rotation frame 56. This design not only improves the load-bearing capacity of the rotation frame 56, but also provides better support and protection for the rotation frame 56, thereby extending the service life of the equipment.

[0038] refer to Figure 4 There are several fixing rods 41, which are evenly distributed in a ring.

[0039] As a technical optimization of this utility model, by setting the number of fixing rods 41 to several, the sealing cover 3 can be fixed more securely, ensuring the stability of the sealing cover 3 during operation. In addition, this design also makes it easy to quickly open the sealing cover 3 for daily maintenance and repair work, greatly improving work efficiency and ease of operation.

[0040] The working principle and usage process of this utility model are as follows: When using this device, firstly, the user needs to remove the absorption tube 7 from the device. To do this, the user must rotate the worm gear 57. The rotation of the worm gear 57 will drive the worm wheel 58 to rotate accordingly. As the worm wheel 58 rotates, it will further drive the support rod 42 to rotate. The rotation of the support rod 42 will cause the connecting rod 51 to rotate as well. The rotation of the connecting rod 51 will be transmitted to the torsion ring 52, causing the torsion ring 52 to drive the clamping block 54 to rotate clockwise through the action of the round rod 53. This rotation action allows the clamping block 54 to disengage from the fixed rod 41. Next, the user needs to flip the worm gear 57, so that the rotating frame 56 can flip to the right. After that, the user can move the sealing cover 3 upward to open the sealing cover 3. Once the sealing cover 3 is opened, the user can easily replace or clean the absorption tube 7. Through these steps, the user can easily clean and replace the absorption tube 7, thereby improving the equipment maintenance efficiency and cleanliness.

[0041] In summary, this p-nitroaniline recovery device, through the coordinated use of a falling film absorption tower body 1, a fixing ring 2, a sealing cover 3, a transmission assembly 4, a fixing rod 41, a support rod 42, a torsion assembly 5, a connecting rod 51, a torsion ring 52, a round rod 53, a clamping block 54, a protective frame 55, a rotating frame 56, a worm gear 57, a worm wheel 58, a support plate 6, and an absorption pipe 7, solves the problems of current falling film absorption towers requiring regular cleaning of the internal absorption pipe 7, the need to remove the absorption pipe 7 for cleaning and maintenance, and the fact that the inspection cover of the falling film absorption tower has multiple bolt seals, making disassembly time-consuming and laborious, and hindering quick removal for inspection and maintenance.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A p-nitroaniline recovery apparatus comprising a falling film absorption column body (1), characterized in that, The top of the falling film absorption tower body (1) is fixedly connected with a fixed ring (2), the top of the fixed ring (2) is provided with a sealing cover (3), the top of the sealing cover (3) is movably connected with a transmission assembly (4), the right side of the falling film absorption tower body (1) is provided with a torsion assembly (5), the surface of the falling film absorption tower body (1) is fixedly connected with a supporting plate (6), and the inside of the falling film absorption tower body (1) is provided with an absorption pipe (7).

2. A device for recovering p-nitroaniline according to claim 1, characterized in that: The transmission assembly (4) comprises a fixed rod (41), the fixed rod (41) is fixedly connected to the top of the fixed ring (2), the surface of the sealing cover (3) is slidably connected with the fixed rod (41), and the top of the sealing cover (3) is movably connected with a supporting rod (42).

3. A device for recovering p-nitroaniline according to claim 1, characterized in that: The torsion assembly (5) comprises a connecting rod (51), the connecting rod (51) is fixedly connected to the surface of the supporting rod (42), the top of the sealing cover (3) is provided with a torsion ring (52) fixedly connected with the connecting rod (51), the bottom of the torsion ring (52) is fixedly connected with a round rod (53), the bottom of the round rod (53) is fixedly connected with a clamping block (54), the clamping block (54) is slidably connected with the fixed rod (41), the right side of the falling film absorption tower body (1) is fixedly connected with a protection frame (55), the top of the protection frame (55) is movably connected with a rotating frame (56), the left side of the rotating frame (56) is movably connected with a worm (57), the top of the surface of the supporting rod (42) is fixedly connected with a worm wheel (58) engaged with the worm (57).

4. A p-nitroaniline recovery apparatus according to claim 2, characterized in that: The top of the fixed rod (41) is fixedly connected with a limiting ring (8), and the limiting ring (8) is located at the top of the clamping block (54).

5. A device for recovering p-nitroaniline according to claim 3, characterized in that: The front of the worm (57) is fixedly connected with a rotating disc (9), and the rotating disc (9) is located on the front of the falling film absorption tower body (1).

6. A p-nitroaniline recovery apparatus according to claim 3, characterized in that: The inside of the rotating frame (56) is fixedly connected with a reinforcing rod (10), and the number of reinforcing rods (10) is several.

7. A p-nitroaniline recovery apparatus according to claim 2, characterized by: The number of fixed rods (41) is several, and the fixed rods (41) are evenly distributed in a ring shape.

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