Purifying and cooling device for ammonium bifluoride

Abstract

The utility model relates to an ammonium bifluoride purifying and cooling device which comprises a gas outlet pipe connected with a gas outlet of a distillation retort, a connecting bent pipe connected with the gas outlet pipe, a corrugated pipe arranged at the connecting end of the connecting bent pipe and the gas outlet pipe, a cooling pipe connected with the lower end of the connecting bent pipe, a cooling jacket arranged on the outer wall of the cooling pipe, and a collecting tank fixed at the lower end of the cooling pipe, a discharging pipe is arranged at the bottom of the collecting tank, openings are evenly formed in the connecting flange, mounting bases are evenly fixed to the outer wall of the lower end of the connecting bent pipe, locking bolts capable of entering and exiting the openings through rotation are hinged to the mounting bases, and locking nuts are arranged on the locking bolts. The top of the cooling pipe is provided with the connecting bent pipe which can be conveniently and quickly detached, the corrugated pipe is arranged at the connecting end of the connecting bent pipe and the air outlet pipe, when the inner wall of the cooling pipe is cleaned, the connecting bent pipe can be overturned upwards after the connecting bent pipe is quickly detached, and then the cleaning rod can extend into the cooling pipe to clean local bonding crystals.

Description

Technical Field

[0001] The utility model relates to a purification cooling device for ammonium bifluoride, belonging to the technical field of cooling equipment. Background Art

[0002] Ammonium bifluoride is an inorganic compound, a white or colorless transparent orthorhombic crystal, and is often used as a metal surface treatment agent. In the production process of ammonium bifluoride, the crude ammonium bifluoride is subjected to sub-boiling distillation in a purification tank, and then cooled and collected. However, since ammonium bifluoride is prone to partial crystallization during cooling and adheres to the side wall of the pipeline, it is not easy to disassemble the pipeline and clean the crystals, which affects the purification efficiency. Utility Model Content

[0003] The utility model provides an ammonium bifluoride purification cooling device, which solves the problem that the ammonium bifluoride is easy to be partially crystallized during cooling and adheres to the side wall of a pipeline, but it is not easy to disassemble the pipeline and clean the crystals, thus affecting the purification efficiency.

[0004] The utility model relates to a purification cooling device for ammonium bifluoride, comprising an air outlet pipe connected to an air outlet of a distillation tank, the air outlet pipe is connected with a connecting elbow, a bellows is arranged at a connecting end of the connecting elbow and the air outlet pipe, the lower end of the connecting elbow is connected with a cooling pipe through a connecting flange, a cooling jacket is arranged on the outer wall of the cooling pipe, a cooling water inlet pipe is fixed to the bottom of the cooling jacket, a cooling water outlet pipe is fixed to the top of the cooling jacket, a collecting tank is fixed to the lower end of the cooling pipe, a discharge pipe is arranged at the bottom of the collecting tank, openings are evenly arranged on the connecting flange, mounting seats are evenly fixed on the outer wall of the lower end of the connecting elbow, locking bolts which can be rotated in and out of the opening are hinged on the mounting seat, and locking nuts are arranged on the locking bolts.

[0005] A sealing ring is provided on the connecting flange for better sealing.

[0006] The collecting tank is provided with a heat dissipation air pipe to discharge hot air.

[0007] A stirring shaft is arranged in the collecting tank, a stirring rod is fixed on the stirring shaft, a scraper plate is fixed on the outside of the stirring rod, the scraper plate contacts the inner wall of the collecting tank, a stirring motor is connected to the top of the stirring shaft to prevent the ammonium bifluoride from forming agglomerates when it is cooled and temporarily stored, and the wall can be scraped to better prevent material residue.

[0008] A conical distribution plate is provided inside the lower end of the connecting elbow, and a connecting rod is fixed to the distribution plate. The connecting rod is fixed to the inner wall of the connecting elbow, and the ammonium bifluoride vapor can be diverted to the outer wall of the cooling pipe for better heat exchange and cooling with the cooling water.

[0009] The utility model has the following beneficial effects:

[0010] A connecting elbow is provided on the top of the cooling pipe that can be quickly and easily disassembled. A bellows is provided at the connecting end of the connecting elbow and the exhaust pipe. When cleaning the inner wall of the cooling pipe, the connecting elbow can be quickly disassembled and flipped upward, and then the cleaning rod can be inserted into the cooling pipe to clean local bonding crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 Schematic diagram of some structures;

[0013] Figure 3 It is a schematic diagram of the bottom structure of the connecting flange;

[0014] In the figure: 1. outlet pipe, 2. bellows, 3. connecting elbow, 4. cooling pipe, 5. cooling water outlet pipe, 6. cooling jacket, 7. feed pipe, 8. cooling water inlet pipe, 9. collecting tank, 10. stirring motor, 11. stirring shaft, 12. heat dissipation air pipe, 13. scraper plate, 14. stirring rod, 15. discharge pipe, 16. opening, 17. distribution plate, 18. connecting rod, 19. mounting seat, 20. locking bolt. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with embodiments.

[0016] Embodiment 1, as Figures 1 to 3 As shown, the utility model is a purification cooling device for ammonium bifluoride, including an outlet pipe 1 connected to the outlet of a distillation tank, the outlet pipe 1 is connected to a connecting elbow 3, a bellows 2 is provided at the connecting end of the connecting elbow 3 and the outlet pipe 1, the lower end of the connecting elbow 3 is connected to a cooling pipe 4 through a connecting flange, a cooling jacket 6 is provided on the outer wall of the cooling pipe 4, a cooling water inlet pipe 8 is fixed to the bottom of the cooling jacket 6, a cooling water outlet pipe 5 is fixed to the top of the cooling jacket 6, a collecting tank 9 is fixed to the lower end of the cooling pipe 4, a discharge pipe 15 is provided at the bottom of the collecting tank 9, openings 16 are evenly provided on the connecting flange, mounting seats 19 are evenly fixed on the outer wall of the lower end of the connecting elbow 3, locking bolts 20 that can be rotated in and out of the opening 16 are hinged on the mounting seat 19, a locking nut is provided on the locking bolt 20, and a feed pipe 7 fixedly connected to the cooling pipe 4 is provided on the top of the collecting tank 9.

[0017] During operation, the vapor of ammonium bifluoride heated and distilled out by the distillation tank enters the outlet pipe 1 from the outlet, then enters the connecting elbow pipe 3, then enters the cooling pipe 4, and then exchanges heat with the cooling water entering the cooling jacket 6 in the cooling pipe 4 for cooling, and then the ammonium bifluoride crystals fall from the feed pipe 7 into the collecting tank 9. When it is necessary to clean the cooling pipe, stop the distillation, then loosen the locking nut, then rotate the locking bolt 20 upward, then rotate the bottom of the connecting elbow pipe 3 upward to expose the top of the cooling pipe 4, and then insert the cleaning rod to clean the crystals on the inner wall of the cooling pipe 4.

[0018] Embodiment 2, based on embodiment 1, a sealing ring is provided on the connecting flange.

[0019] The collecting tank 9 is provided with a heat dissipation air pipe 12 .

[0020] A stirring shaft 11 is provided in the collecting tank 9, a stirring rod 14 is fixed on the stirring shaft 11, a scraper plate 13 is fixed outside the stirring rod 14, the scraper plate 13 contacts the inner wall of the collecting tank 9, and a stirring motor 10 is connected to the top of the stirring shaft 11. Before distillation, the stirring motor 10 is started to drive the stirring shaft 11 and the stirring rod 14 to rotate, stir the collected ammonium bifluoride, accelerate the cooling of the ammonium bifluoride temporarily stored in the collecting tank 9 to room temperature, and prevent the agglomeration of the agglomerates.

[0021] A conical distribution plate 17 is provided inside the lower end of the connecting elbow 3 , and a connecting rod 18 is fixed to the distribution plate 17 . The connecting rod 18 is fixed to the inner wall of the connecting elbow 3 .

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0023] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. A purification and cooling device for ammonium bifluoride, comprising an outlet pipe (1) connected to an outlet of a distillation tank, characterized in that: The outlet pipe (1) is connected to a connecting elbow (3), a bellows (2) is provided at the connecting end of the connecting elbow (3) and the outlet pipe (1), the lower end of the connecting elbow (3) is connected to a cooling pipe (4) via a connecting flange, a cooling jacket (6) is provided on the outer wall of the cooling pipe (4), a cooling water inlet pipe (8) is fixed to the bottom of the cooling jacket (6), a cooling water outlet pipe (5) is fixed to the top of the cooling jacket (6), a collecting tank (9) is fixed to the lower end of the cooling pipe (4), a discharge pipe (15) is provided at the bottom of the collecting tank (9), openings (16) are evenly provided on the connecting flange, mounting seats (19) are evenly fixed on the outer wall of the lower end of the connecting elbow (3), a locking bolt (20) which can be rotated in and out of the opening (16) is hinged on the mounting seat (19), and a locking nut is provided on the locking bolt (20).

2. The purification cooling device for ammonium bifluoride according to claim 1, characterized in that: A sealing ring is provided on the connecting flange.

3. The purification cooling device for ammonium bifluoride according to claim 2, characterized in that: The collecting tank (9) is provided with a heat dissipation air pipe (12).

4. The purification cooling device for ammonium bifluoride according to claim 1, characterized in that: A stirring shaft (11) is arranged in the collecting tank (9), a stirring rod (14) is fixed on the stirring shaft (11), a scraper plate (13) is fixed outside the stirring rod (14), the scraper plate (13) contacts the inner wall of the collecting tank (9), and a stirring motor (10) is connected to the top of the stirring shaft (11).

5. The purification cooling device for ammonium bifluoride according to claim 4, characterized in that: A conical distribution plate (17) is provided inside the lower end of the connecting elbow (3), a connecting rod (18) is fixed to the distribution plate (17), and the connecting rod (18) is fixed to the inner wall of the connecting elbow (3).

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