Nicotinamide crystallization and waste liquid separation device

Abstract

The utility model discloses a nicotinamide crystallization and waste liquid separation device, which relates to the technical field of nicotinamide production and comprises a crystallization barrel, a feeding pipe is arranged at the upper end of the side wall of the crystallization barrel, and a liquid outlet pipe is arranged at the lower end of the side wall of the crystallization barrel; the two material guide plates are respectively arranged at the opening end of the crystallization barrel and the opening end of the positioning barrel in a sleeving manner; the two ends of the connecting plates are fixedly connected with the two material guiding plates correspondingly; the thread bushing is in threaded connection with the material guide plate above the thread bushing through threads; the rotating pipe is rotatably arranged in the positioning barrel; one end of the lifting rod slidably extends into the rotating pipe; the filter screen is arranged at the lower end of the lifting rod, and the outer circumferential wall of the filter screen is in sliding contact with the inner wall of the crystallization barrel; the cooling pipe is spirally arranged on the periphery of the lifting rod in a sleeving mode and fixed to the lifting rod through a positioning ring; the vibration ring is arranged in the positioning barrel, a vibrator is arranged on the vibration ring, and a plurality of vibration rods are arranged on the lower surface of the vibration ring; the device has the advantages of convenience in use, good crystallization and waste liquid separation effect and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of nicotinamide production, and in particular to a nicotinamide crystallization and waste liquid separation device. Background Technology

[0002] In the production and processing of nicotinamide, it is usually purified by crystallization, and then the crystals are separated from the waste liquid by filtration. For example, patent application number CN202222196569.2 discloses a recrystallization device for β-nicotinamide mononucleotide. In this patent, the mixed solution to be crystallized is transported to the inner cavity of the crystallization vessel 5 through the outlet 15. Its cooling layer and cooling coil 7 cool the mixed solution to be crystallized, and crystals are precipitated. The crystals are trapped on the upper surface of the filter 18, and the separated solution flows into the solvent collector 9 through the outlet 19.

[0003] In existing technologies, after crystallization, the crystals are mainly blocked by filters to separate them from the liquid. However, this separation method is ineffective, waste liquid is easily discharged from the outlet, and the scraper cannot scrape the material cleanly. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a nicotinamide crystallization and waste liquid separation device to solve the problem of poor filtration effect of the existing nicotinamide crystallization method described in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nicotinamide crystallization and waste liquid separation device, comprising...

[0006] The crystallization tank has a feed pipe at the upper end of the side wall and a liquid outlet pipe at the lower end.

[0007] Positioning barrel, with its open end facing downwards and directly opposite the open end of the crystallization barrel;

[0008] Two guide plates, both hollow frustum shapes, are respectively fitted onto the opening end of the crystallization tank and the opening end of the positioning tank;

[0009] Several connecting plates, each end of which is fixedly connected to two guide plates;

[0010] The threaded sleeve is connected to the upper guide plate by threads.

[0011] The rotating tube is a square tube that is rotatably installed inside the positioning barrel;

[0012] The lifting rod is rectangular in shape, with one end sliding into the rotating tube and being raised and lowered within the rotating tube.

[0013] The filter screen is conical and located at the lower end of the lifting rod. The outer circumferential wall of the filter screen slides in contact with the inner wall of the crystallization tank.

[0014] The cooling tube is spirally sleeved around the lifting rod and fixed to the lifting rod by a positioning ring;

[0015] A vibrating ring is installed inside the positioning barrel. A vibrator is installed on the vibrating ring, and several vibrating rods are installed on the lower surface of the vibrating ring. The vibrating rods are used to contact the filter screen and drive the filter screen to vibrate.

[0016] Preferably, the bottom inner wall of the crystallization barrel is a conical bottom that matches the filter screen.

[0017] Preferably, the upper end of the rotating tube passes through the upper wall of the positioning barrel and is rotatably connected to the positioning barrel. A gear ring is fixedly sleeved on the rotating tube, and a first servo motor is provided on the positioning barrel. The output end of the first servo motor is provided with a gear that meshes with the gear ring.

[0018] Preferably, the upper wall of the positioning barrel is provided with a positioning plate, and a winding roller is rotatably mounted on the positioning plate. The winding roller is connected to the lifting rod by a pull rope.

[0019] Preferably, the side wall of the positioning plate is provided with a reducer for driving the take-up roller, and the reducer has a second servo motor for driving the reducer.

[0020] The beneficial effects of adopting the above technical solutions are:

[0021] This application utilizes the reciprocating rotation of a rotating tube to drive a lifting rod to rotate. The lifting rod causes the filter screen to rise and fall and move vertically. The cooling tube and the filter screen enter the crystallization tank. After crystallization is complete, the lifting rod moves upward, causing the filter screen to move to the position of the lower guide plate. At this time, the vibrating rod contacts the filter screen, and the vibrator vibrates, causing the vibrating ring and vibrating rod to vibrate, which in turn causes the filter screen to vibrate. This causes the crystals on the filter screen to move to the lower guide plate under the action of the vibration force. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a nicotinamide crystallization and waste liquid separation device according to the present invention.

[0023] Figure 2 This is a cross-sectional view of a nicotinamide crystallization and waste liquid separation device according to the present invention.

[0024] Figure 3 This is a cross-sectional view of the lifting rod of this utility model after it has been lowered.

[0025] Figure 4 This is a schematic diagram of the vibrating rod and vibrating ring of this utility model.

[0026] The components include: crystallization tank 10, liquid outlet pipe 11, conical bottom 12, feed pipe 13, positioning tank 20, guide plate 30, connecting plate 31, threaded sleeve 32, rotating pipe 40, toothed ring 41, gear 42, first servo motor 43, lifting rod 50, pull rope 51, winding roller 52, positioning plate 53, reducer 54, second servo motor 55, filter screen 60, cooling pipe 70, positioning ring 71, vibrating rod 80, vibrating ring 81, and vibrator 82. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 In this first embodiment, a nicotinamide crystallization and waste liquid separation device includes...

[0029] The crystallization tank 10 has a feed pipe 13 at the upper end of its side wall and a liquid outlet pipe 11 at the lower end.

[0030] Positioning barrel 20, with its open end facing downwards and directly opposite the open end of crystallization barrel 10;

[0031] Two guide plates 30, both hollow frustum shapes, are respectively fitted onto the open end of the crystallization tank 10 and the open end of the positioning tank 20;

[0032] Several connecting plates 31 are fixedly connected to two guide plates 30 at both ends;

[0033] The threaded sleeve 32 is connected to the upper guide plate 30 by threads;

[0034] The rotating tube 40 is a square tube that is rotatably installed inside the positioning barrel 20;

[0035] The lifting rod 50 is rectangular in shape, with one end sliding into the rotating tube 40 and being able to be raised and lowered within the rotating tube 40.

[0036] The filter screen 60 is conical and is located at the lower end of the lifting rod 50. The outer circumferential wall of the filter screen 60 is in sliding contact with the inner wall of the crystallization tank 10.

[0037] The cooling tube 70 is spirally sleeved around the lifting rod 50 and fixed to the lifting rod 50 by the positioning ring 71;

[0038] A vibrating ring 81 is disposed inside the positioning barrel 20. A vibrator 82 is disposed on the vibrating ring 81. Several vibrating rods 80 are disposed on the lower surface of the vibrating ring 81. The vibrating rods 80 are used to contact the filter screen 60 and drive the filter screen 60 to vibrate.

[0039] This embodiment is implemented as follows:

[0040] In use, raw materials are introduced into the crystallization tank 10 through the feed pipe 13, and then refrigerant is introduced into the cooling pipe 70, so that the cooling pipe 70 can absorb the heat energy of the raw materials, causing crystallization to gradually occur in the crystallization tank 10. After crystallization, the lifting rod 50 moves upward, causing the lifting rod 50 to drive the filter screen 60 and the cooling pipe 70 to move upward until the filter screen 60 moves into the lower guide plate 30. At this time, the vibrating rod 80 contacts the filter screen 60, and then the vibrator 82 drives the vibrating ring 81 to vibrate. The vibrating ring 81 drives the vibrating rod 80 to vibrate, and the vibrating rod 80 drives the filter screen 60 to vibrate, so that the crystals on the filter screen 60 can slide down into the lower guide plate 30. This completes the unloading of the crystals. By rotating the threaded sleeve 32, the threaded sleeve 32 can be disengaged from the lower guide plate 30, so that the crystals on the guide plate 30 can slide out, completing the unloading.

[0041] Please see Figure 2 , 3 The bottom inner wall of the crystallization tank 10 is a conical bottom 12 that matches the filter screen 60.

[0042] The bottom shape of the crystallization tank 10 of this application matches the filter screen 60, which prevents crystallization from occurring below the filter screen 60.

[0043] Please see Figure 2 , 3 The upper end of the rotating tube 40 passes through the upper wall of the positioning barrel 20 and is rotatably connected to the positioning barrel 20. A toothed ring 41 is fixedly sleeved on the rotating tube 40. A first servo motor 43 is provided on the positioning barrel 20. A gear 42 that meshes with the toothed ring 41 is provided at the output end of the first servo motor 43.

[0044] The first servo motor 43 can drive the gear 42 to rotate, the gear 42 drives the gear ring 41 to rotate, and the gear ring 41 drives the rotating tube 40 to rotate on the positioning barrel 20.

[0045] Please see Figure 1 , 2 3. A positioning plate 53 is provided on the upper wall of the positioning barrel 20. A winding roller 52 is rotatably mounted on the positioning plate 53. The winding roller 52 is connected to the lifting rod 50 through a pull rope 51.

[0046] This application enables the winding roller 52 to rotate to wind up or release the pull rope 51, so that the pull rope 51 can pull the lifting rod 50 to move vertically within the rotating tube 40.

[0047] Please see Figure 2 , 3 The side wall of the positioning plate 53 is provided with a reducer 54 for driving the take-up roller 52, and the reducer 54 has a second servo motor 55 for driving the reducer 54.

[0048] The second servo motor 55 provided in this application can drive the reducer 54, and the reducer 54 can drive the take-up roller 52 to rotate.

[0049] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A nicotinamide crystallization and waste liquid separation device, characterized in that, include The crystallization tank has a feed pipe at the upper end of the side wall and a liquid outlet pipe at the lower end. Positioning barrel, with its open end facing downwards and directly opposite the open end of the crystallization barrel; Two guide plates, both hollow frustum shapes, are respectively fitted onto the opening end of the crystallization tank and the opening end of the positioning tank; Several connecting plates, each end of which is fixedly connected to two guide plates; The threaded sleeve is connected to the upper guide plate by threads. The rotating tube is a square tube that is rotatably installed inside the positioning barrel; The lifting rod is rectangular in shape, with one end sliding into the rotating tube and being raised and lowered within the rotating tube. The filter screen is conical and located at the lower end of the lifting rod. The outer circumferential wall of the filter screen slides in contact with the inner wall of the crystallization tank. The cooling tube is spirally sleeved around the lifting rod and fixed to the lifting rod by a positioning ring; A vibrating ring is installed inside the positioning barrel. A vibrator is installed on the vibrating ring, and several vibrating rods are installed on the lower surface of the vibrating ring. The vibrating rods are used to contact the filter screen and drive the filter screen to vibrate.

2. The nicotinamide crystallization and waste liquid separation device according to claim 1, characterized in that, The bottom inner wall of the crystallization tank is a conical bottom that matches the filter screen.

3. The nicotinamide crystallization and waste liquid separation device according to claim 1, characterized in that, The upper end of the rotating tube passes through the upper wall of the positioning barrel and is rotatably connected to the positioning barrel. A gear ring is fixedly sleeved on the rotating tube. A first servo motor is provided on the positioning barrel. The output end of the first servo motor is provided with a gear that meshes with the gear ring.

4. The nicotinamide crystallization and waste liquid separation device according to claim 3, characterized in that, The upper wall of the positioning barrel is provided with a positioning plate, and a winding roller is rotatably mounted on the positioning plate. The winding roller is connected to the lifting rod by a pull rope.

5. The nicotinamide crystallization and waste liquid separation device according to claim 4, characterized in that, The side wall of the positioning plate is equipped with a reducer that drives the take-up roller, and the reducer has a second servo motor that drives the reducer.

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