Sulfamic acid separation equipment

Abstract

The utility model discloses sulfamic acid separation equipment which comprises a separation tank, the scraping plate is arranged in the separation tank; the separation part is arranged in the separation tank, and the separation part comprises a rotating frame rotationally arranged in the separation tank and a filter screen arranged in the rotating frame; the power part is arranged at one end of the separation tank, and the power part comprises a driving gear a connected with the rotating center of the rotating frame, a driving gear b connected with the driving gear a in a meshed mode and a motor connected with the rotating center of the driving gear b; and the negative pressure part is arranged at the bottom end of the separation tank. According to the utility model, the separation part is arranged, the rotating frame can be driven by the power part to rotate in the separation tank, and crude sulfamic acid accumulated on the filter screen can be scraped by the scraper in the rotating process of the rotating frame, so that the suction filtration separation efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of aminosulfonic acid production, in particular to aminosulfonic acid separation equipment. Background Art

[0002] Aminosulfonic acid is a white powder. At room temperature, as long as it is kept dry and not in contact with water, solid aminosulfonic acid is non-hygroscopic and relatively stable. The aqueous solution of aminosulfonic acid has the same strong acidity as hydrochloric acid and sulfuric acid, so it is also called solid sulfuric acid. It is non-volatile, odorless and has minimal toxicity to the human body. Dust or solution is irritating to the eyes and skin and can cause burns. When producing aminosulfonic acid, it is necessary to use a reactor to sulfonate urea and fuming sulfuric acid at 40-70°C to generate crude aminosulfonic acid, and then add water for crystallization and separation to obtain aminosulfonic acid. The crude aminosulfonic acid needs to be filtered to obtain the finished product. The current filtering method is suction filtration. Utility Model Content

[0003] The utility model aims to provide a sulfamic acid separation device. When the existing separation device is performing separation filtration, the crude sulfamic acid product will be adsorbed and accumulated on the filter screen due to negative pressure, thereby affecting the subsequent filtration efficiency.

[0004] To achieve the above object, the utility model provides the following technical solution: an aminosulfonic acid separation device, comprising:

[0005] Separation tank;

[0006] A scraper, the scraper being arranged inside the separation tank;

[0007] A separation unit, the separation unit is arranged inside the separation tank, and the separation unit includes a rotating frame rotatably arranged inside the separation tank and a filter screen arranged inside the rotating frame;

[0008] A power unit, the power unit is arranged at one end of the separation tank, and the power unit includes a driving gear a connected to the rotation center of the rotating frame, a driving gear b meshingly connected to the driving gear a, and a motor connected to the rotation center of the driving gear b;

[0009] A negative pressure part is arranged at the bottom end of the separation tank, and the negative pressure part comprises a collection bin arranged at the bottom end of the separation tank and an air pump arranged at one side of the collection bin.

[0010] By adopting the above technical solution, the motor inside the power unit can drive the driving gear a and the driving gear b to rotate, so that the rotating frame can rotate inside the separation tank. During the rotation of the rotating frame, the crude aminosulfonic acid accumulated on the filter screen will be scraped off by the scraper, thereby ensuring the efficiency of filtration separation.

[0011] Preferably, a feed inlet is provided on the side of the separation tank, a discharge port is provided below the feed inlet, and a sealing cover is provided on the outer side of the discharge port.

[0012] By adopting the above technical solution, the aminosulfonic acid to be filtered can be poured into the interior of the separation tank from the feed inlet, and the crude aminosulfonic acid after the filtration is completed can be taken out from the discharge port.

[0013] Preferably, a scraper is provided inside the separation tank, one end of the scraper is fixed on a side of the inner wall of the separation tank close to the feed inlet, and the scraper is in contact with the filter screen.

[0014] By adopting the above technical solution, the scraper can scrape off the accumulated crude aminosulfonic acid while the filter screen rotates.

[0015] Preferably, a connection port is provided at the bottom of the separation tank, and the interior of the separation tank is connected to the interior of the collection bin through the connection port.

[0016] By adopting the above technical solution, the filtered liquid can enter the collection bin through the connecting port.

[0017] Preferably, the rotating frame is a cylindrical frame structure, the outer side of the rotating frame is in close contact with the inner wall of the separation tank and is rotatably connected thereto, and the rotation center of the driving gear a passes through the separation tank and is connected to the rotation center of the rotating frame.

[0018] By adopting the above technical solution, the rotating frame can be driven to rotate inside the separation tank through the rotation of the driving gear a.

[0019] Preferably, a discharge port is provided at the bottom of the collecting bin, and the internal space of the collecting bin is connected to an air pump provided at one side of the collecting bin via a connecting pipe.

[0020] By adopting the above technical solution, the air inside the collection bin can be extracted by an air pump to form a negative pressure.

[0021] Preferably, the filter screen is cylindrical and is closely attached to the inner side of the rotating frame.

[0022] By adopting the above technical solution, aminosulfonic acid can be filtered while the filter screen is rotating.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. By providing a separation part, the power part can drive the rotating frame to rotate inside the separation tank. During the rotation of the rotating frame, the crude aminosulfonic acid accumulated on the filter screen will be scraped off by the scraper, thereby ensuring the efficiency of suction filtration and separation;

[0025] 2. The filter screen is cylindrical and is driven to rotate by a rotating frame, so that the crude aminosulfonic acid can be prevented from accumulating on the filter screen above the connection port, thereby ensuring the efficiency of suction filtration and separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a schematic diagram of the overall structure of this application;

[0028] Figure 3 This is a schematic diagram of the overall side cross-sectional structure of this application;

[0029] Figure 4 This is a schematic diagram of the overall front view cross-sectional structure of this application;

[0030] Figure 5 This is a schematic diagram of the connection structure between the rotating frame and the filter screen in this application.

[0031] In the figure: 1. separation tank; 2. feed inlet; 3. discharge port; 4. sealing cover; 5. scraper; 6. separation part; 7. rotating frame; 8. power part; 9. driving gear a; 10. driving gear b; 11. motor; 12. connecting port; 13. negative pressure part; 14. collecting bin; 15. vacuum pump; 16. discharge port; 17. filter screen. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1 , Figure 2 and Figure 3The utility model provides a technical solution: an aminosulfonic acid separation device, comprising: a separation tank 1, a feed inlet 2 is arranged on the side of the separation tank 1, a discharge port 3 is arranged below the feed inlet 2, a sealing cover 4 is arranged on the outer side of the discharge port 3, the aminosulfonic acid to be filtered can be poured into the interior of the separation tank 1 from the feed inlet 2, and the crude aminosulfonic acid after the filtration is completed can be taken out from the discharge port 3, a separation part 6 is arranged inside the separation tank 1, the separation part 6 includes a rotating frame 7 rotatably arranged inside the separation tank 1 and a filter screen 17 arranged inside the rotating frame 7, a scraper 5 is arranged inside the separation tank 1, one end of the scraper 5 is fixedly arranged on a side of the inner wall of the separation tank 1 close to the feed inlet 2, the scraper 5 is in contact with the filter screen 17, and the scraper 5 can scrape off the accumulated crude aminosulfonic acid while the filter screen 17 is rotating.

[0034] See also Figure 1 , Figure 2 and Figure 5 The rotating frame 7 is a cylindrical frame structure, the rotating frame 7 is embedded in the interior of the separation tank 1, the outer side of the rotating frame 7 is tightly attached to the inner wall of the separation tank 1 and is rotatably connected thereto, the rotation center of the driving gear a9 passes through the separation tank 1 and is connected to the rotation center of the rotating frame 7, and the rotating frame 7 can be driven to rotate inside the separation tank 1 by the rotation of the driving gear a9, the filter screen 17 is cylindrical, and the filter screen 17 is tightly attached to the inner side of the rotating frame 7, and the aminosulfonic acid can be filtered while the filter screen 17 rotates.

[0035] See also Figure 2 , Figure 4 and Figure 5 A power unit 8 is provided on the side of the separation tank 1, and the power unit 8 includes a driving gear a9 connected to the rotation center of the rotating frame 7, a driving gear b10 meshingly connected to the driving gear a9, and a motor 11 connected to the rotation center of the driving gear b10. A connecting port 12 is provided at the bottom of the separation tank 1. The interior of the separation tank 1 is connected to the interior of the collecting bin 14 through the connecting port 12, so that the filtered liquid can enter the collecting bin 14 through the connecting port 12. A negative pressure unit 13 is provided at the bottom end of the separation tank 1. The negative pressure unit 13 includes a collecting bin 14 provided at the bottom end of the separation tank 1 and an air pump 15 provided on one side of the collecting bin 14.

[0036] See also Figure 3 , Figure 4 and Figure 5 A discharge port 16 is provided at the bottom of the collecting bin 14, and the internal space of the collecting bin 14 is connected to an air pump 15 provided on one side of the collecting bin 14 through a connecting pipe. The air inside the collecting bin 14 can be extracted by the air pump 15 to form a negative pressure.

[0037] Working principle: First, pour the aminosulfonic acid to be filtered from the feed inlet 2 into the interior of the separation tank 1, then start the motor 11 and the vacuum pump 15, and drive the driving gear a9 and the driving gear b10 to rotate through the motor 11, so that the rotating frame 7 inside the separation tank 1 rotates inside the separation tank 1, and at the same time, the vacuum pump 15 extracts the air inside the collection bin 14 to form a negative pressure, so that the aminosulfonic acid completes the filtration operation. During the filtration, the crude aminosulfonic acid will be adsorbed and accumulated on the filter screen 17 due to the negative pressure. During the rotation of the rotating frame 7, the crude aminosulfonic acid accumulated on the filter screen 17 will be scraped off by the scraper 5, thereby ensuring the efficiency of the filtration separation. After the filtration is completed, the cover 4 is opened and the crude aminosulfonic acid can be taken out from the discharge port 3, and the filtered liquid can be discharged from the discharge port 16;

[0038] Secondly, the filter screen 17 is cylindrical and is driven to rotate by the rotating frame 7 so that the crude aminosulfonic acid can be prevented from being accumulated on the filter screen 17 above the connecting port 12, thereby ensuring the efficiency of suction filtration and separation.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sulfamic acid separation device, characterized in that: include: Separation tank (1); A scraper (5) is arranged inside the separation tank (1) A separation part (6), the separation part (6) being arranged inside the separation tank (1), the separation part (6) comprising a rotating frame (7) rotatably arranged inside the separation tank (1) and a filter screen (17) arranged inside the rotating frame (7); A power unit (8), the power unit (8) being arranged at one end of the separation tank (1), the power unit (8) comprising a driving gear a (9) connected to the rotation center of the rotating frame (7), a driving gear b (10) meshingly connected to the driving gear a (9), and a motor (11) connected to the rotation center of the driving gear b (10); A negative pressure portion (13), the negative pressure portion (13) being arranged at the bottom end of the separation tank (1), the negative pressure portion (13) comprising a collection bin (14) arranged at the bottom end of the separation tank (1) and an air extraction pump (15) arranged at one side of the collection bin (14).

2. A sulfamic acid separation device according to claim 1, characterized in that: The side of the separation tank (1) is provided with an inlet (2), a discharge port (3) is provided below the inlet (2), and a sealing cover (4) is provided outside the discharge port (3).

3. A sulfamic acid separation device according to claim 1, characterized in that: A scraper (5) is arranged inside the separation tank (1), one end of the scraper (5) is fixed to a side of the inner wall of the separation tank (1) close to the feed inlet (2), and the scraper (5) is in contact with the filter screen (17).

4. A sulfamic acid separation device according to claim 1, characterized in that: A connecting port (12) is provided at the bottom of the separation tank (1), and the interior of the separation tank (1) is connected to the interior of a collection bin (14) via the connecting port (12).

5. The aminosulfonic acid separation device according to claim 1, characterized in that: The rotating frame (7) is a cylindrical frame structure. The outer side of the rotating frame (7) is in close contact with the inner wall of the separation tank (1) and is rotatably connected thereto. The rotation center of the driving gear a (9) passes through the separation tank (1) and is connected to the rotation center of the rotating frame (7).

6. A sulfamic acid separation device according to claim 4, characterized in that: A discharge port (16) is provided at the bottom of the collecting bin (14), and the internal space of the collecting bin (14) is connected to an air pump (15) provided on one side of the collecting bin (14) via a connecting pipe.

7. The aminosulfonic acid separation device according to claim 5, characterized in that: The filter screen (17) is cylindrical and is closely attached to the inner side of the rotating frame (7).

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