Filtering and drying device for combined soda production

Abstract

The utility model discloses a filtering and drying device for combined soda production, which comprises an upper heating jacket, a filtering and heating cylinder and a cone heating jacket, a mounting ring is fixedly arranged on the outer surface of the joint of the upper heating jacket and the cone heating jacket, and a U-shaped jacket is sleeved on the surface of the mounting ring. The upper heating jacket and the cone heating jacket jointly form a vacuum drying stirring bin, a discharging port is formed in the center of the bottom end of the cone heating jacket, a liquid discharging port is formed in the surface of one side of the bottom end of the cone heating jacket, and a process sampling port is formed in the other side of the bottom end of the cone heating jacket; a stirring rod is arranged on the inner side of the cone heating jacket; a spiral stirring paddle is welded on the outer surface of the stirring rod; according to the device, washing, filtering and drying are integrated, the reaction time is shortened, and the production efficiency is improved; and a cleaning liquid inlet pipe, a branch pipe and a high-pressure spray head are arranged in a matched manner, so that the cleaning liquid can uniformly enter the vacuum drying and stirring bin to sufficiently wash the filter cake.

Description

Technical Field

[0001] The utility model relates to the technical field of combined alkali production, in particular to a filtering and drying device for combined alkali production. Background Art

[0002] There are two methods for producing soda ash: synthetic method and natural soda method. The synthetic method is further divided into ammonia soda method (also known as Solvay process) and combined soda method (also known as Hou's soda method). In the combined soda method, salt is added to the NH4Cl solution after filtering out the NaHCO3 crystals, so that the NH4Cl in it is crystallized and precipitated separately and used as nitrogen fertilizer. The salt solution can be recycled. NH4Cl is a good agricultural nitrogen fertilizer, especially suitable for the production of compound fertilizers. NH4Cl is also used in electroplating, batteries, dyes, printing, medicine and other departments.

[0003] For example, a filtering and drying device for combined alkali production disclosed in the utility model with authorization announcement number CN212491847U contains air inside the filter cake, and the forward and reverse motors drive the fixed rod to rotate forward or reversely in the filter tank. During the rotation, the elastic member, the transverse rod, the first diverter rod and the second diverter rod can stir the internal filter cake so that the internal air is released during the stirring, and the vacuum air pump can quickly extract the internal gas, which can improve the drying efficiency and shorten the processing time.

[0004] This prior art also has the following problems when used: direct drying of the filter cake without washing affects the quality of the combined alkali production, and incomplete discharge reduces the production efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a filtering and drying device for combined alkali production. The device integrates washing, filtering and drying, shortens the reaction time and accelerates the production efficiency. Through the matching arrangement of the cleaning liquid inlet pipe, the branch pipe and the high-pressure nozzle, the cleaning liquid can evenly enter the vacuum drying stirring chamber to fully wash the filter cake.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a filtering and drying device for combined alkali production, comprising an upper heating jacket, a filtering and heating cylinder, and a conical heating jacket, wherein a mounting ring is fixedly arranged on the outer surface of the connection between the upper heating jacket and the conical heating jacket, and a U-shaped jacket is sleeved on the surface of the mounting ring, and the upper heating jacket and the conical heating jacket together form a vacuum drying and stirring chamber, a discharge port is arranged at the center of the bottom end of the conical heating jacket, a liquid discharge port is arranged on one side of the bottom end of the conical heating jacket, and a liquid discharge port is arranged on the other side of the bottom end of the conical heating jacket. A process sampling port is provided, a stirring rod is provided on the inner side of the conical heating jacket, a spiral stirring paddle is welded on the outer surface of the stirring rod, a coupling is provided on the top of the stirring rod, a forward and reverse motor is provided on the top of the coupling, the filtering and heating cylinder is located on the surface of one side of the top of the upper heating jacket, a booster plate is provided on the inner side of the filtering and heating cylinder, a mounting hole is provided on the surface of the booster plate, a filter element is provided on the inner side of the mounting hole, a connecting pipe is provided on one side of the filtering and heating cylinder, a booster is provided at one end of the connecting pipe, and a top cover is provided on the top of the filtering and heating cylinder.

[0007] As a preferred technical solution of the utility model, a cleaning liquid inlet pipe is arranged on one side surface of the top end of the upper heating jacket, a branch pipe is arranged at the bottom end of the cleaning liquid inlet pipe, and a high-pressure nozzle is arranged at the bottom end of the branch pipe.

[0008] As an optimal technical solution of the utility model, a backwash liquid inlet pipe is arranged on one side surface of the filter heating cylinder, a reaction liquid inlet pipe is arranged on the other side surface of the top of the filter heating cylinder, and a discharge ball valve is arranged at the connection between the filter heating cylinder and the upper heating jacket.

[0009] As a preferred technical solution of the utility model, the upper heating jacket and the conical heating jacket are connected to a heat medium conveying pipe on one side surface, and a support frame is fixedly provided on the outer surface of the upper heating jacket.

[0010] As a preferred technical solution of the utility model, a discharge valve is provided at the bottom end of the discharge port.

[0011] As a preferred technical solution of the utility model, a vacuum compressor is arranged at the top of the upper heating jacket, and a maximum water level sensor probe is arranged on the inner wall of the upper heating jacket.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0013] 1. This device integrates washing, filtering and drying, shortens the reaction time and speeds up production efficiency. Through the matching setting of the cleaning liquid inlet pipe, branch pipe and high-pressure nozzle, it is convenient for the cleaning liquid to evenly enter the vacuum drying and mixing chamber to fully wash the filter cake.

[0014] 2. The combination of the reaction liquid inlet pipe and the discharge ball valve makes it easy for the reaction liquid to enter the inner side of the filter heating cylinder for filtration and discharge into the vacuum drying and stirring chamber; the discharge valve is set at the bottom of the discharge port to facilitate the complete discharge of the filter cake inside the cone heating jacket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the internal top view of the cone heating jacket of the utility model.

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter heating cartridge of the utility model when viewed from above.

[0018] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0019] Among them: 1. Upper heating jacket; 2. Filter heating cylinder; 3. Conical heating jacket; 4. Support frame; 5. U-shaped jacket; 6. Heat medium conveying pipe; 7. Drain port; 8. Discharge port; 9. Process sampling port; 10. Spiral stirring paddle; 11. Stirring rod; 12. Coupling; 13. Forward and reverse motor; 14. Vacuum compressor; 15. Cleaning liquid inlet pipe; 16. Raw slurry inlet pipe; 17. Filter element; 18. Booster; 19. Top cover; 20. Mounting ring; 21. Booster plate; 22. Mounting hole; 23. Connecting pipe. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0021] For example, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the utility model provides a filtering and drying device for combined alkali production, comprising an upper heating jacket 1, a filtering and heating cylinder 2, and a conical heating jacket 3. A mounting ring 20 is fixedly arranged on the outer surface of the connection between the upper heating jacket 1 and the conical heating jacket 3. A U-shaped jacket 5 is sleeved on the surface of the mounting ring 20. The upper heating jacket 1 and the conical heating jacket 3 together form a vacuum drying and stirring chamber. A discharge port 8 is arranged at the center of the bottom end of the conical heating jacket 3. A liquid discharge port 7 is arranged on one side of the bottom end of the conical heating jacket 3. A process sampling port 9 is arranged on the other side of the bottom end of the conical heating jacket 3. A stirring rod 11 is arranged on the inner side of the conical heating jacket 3. A spiral stirring paddle 10 is welded to the outer surface of the mixing rod 11, a coupling 12 is arranged at the top of the mixing rod 11, a forward and reverse motor 13 is arranged at the top of the coupling 12, the filtering and heating cylinder 2 is located on the top side surface of the upper heating jacket 1, a booster plate 21 is arranged on the inner side of the filtering and heating cylinder 2, a mounting hole 22 is opened on the surface of the booster plate 21, a filter element 17 is arranged on the inner side of the mounting hole 22, a connecting pipe 23 is arranged on one side of the filtering and heating cylinder 2, a booster 18 is arranged at one end of the connecting pipe 23, and a top cover 19 is arranged on the top of the filtering and heating cylinder 2; the device integrates washing, filtering and drying, shortens the reaction time, and speeds up the production efficiency.

[0022] like Figure 1 As shown, a cleaning liquid inlet pipe 15 is arranged on the surface of one side of the top end of the upper heating jacket 1, a branch pipe is arranged at the bottom end of the cleaning liquid inlet pipe 15, and a high-pressure nozzle is arranged at the bottom end of the branch pipe; through the combination of the cleaning liquid inlet pipe 15, the branch pipe and the high-pressure nozzle, the cleaning liquid can evenly enter the vacuum drying stirring chamber to fully wash the filter cake.

[0023] like Figure 1 As shown, a backwash liquid inlet pipe is arranged on one side surface of the filter heating cylinder 2, a reaction liquid inlet pipe is arranged on the other side surface of the top of the filter heating cylinder 2, and a discharge ball valve is arranged at the connection between the filter heating cylinder 2 and the upper heating jacket 1; through the matching arrangement of the reaction liquid inlet pipe and the discharge ball valve, it is convenient for the reaction liquid to enter the inner side of the filter heating cylinder 2 for filtration and then be discharged into the vacuum drying and stirring bin.

[0024] like Figure 1 As shown, the upper heating jacket 1 and one side surface of the conical heating jacket 3 are connected with a heat medium conveying pipe 6, and a support frame 4 is fixedly arranged on the outer surface of the upper heating jacket 1; by fixing the support frame 4 on the outer surface of the upper heating jacket 1, the support frame 4 plays a role of stable support for the entire device.

[0025] like Figure 1 As shown, a discharge valve is provided at the bottom of the discharge port 8; by providing the discharge valve at the bottom of the discharge port 8, the filter cake inside the conical heating jacket 3 can be completely discharged.

[0026] like Figure 1As shown, a vacuum compressor 14 is arranged at the top of the upper heating jacket 1, and a maximum water level sensor probe is arranged on the inner wall of the upper heating jacket 1; by arranging the maximum water level sensor probe on the inner wall of the upper heating jacket 1, the water level detection inside the vacuum drying mixing chamber is facilitated.

[0027] Specific working principle:

[0028] The original pulp enters the vacuum drying and stirring chamber from the original pulp inlet pipe 16, and the reaction liquid is pressurized and filtered through the filtering and heating cylinder 2 and enters the vacuum drying and stirring chamber. The stirring rod 11 is driven to rotate by the forward and reverse motor 13, and the stirring rod 11 rotates and drives the spiral stirring paddle 10 to rotate and stir the slurry. The liquid after sufficient reaction is discharged into the vacuum drying and stirring chamber through the vacuum compressor 14, and the liquid is discharged through the discharge port 7. The filter cake remains in the vacuum drying and stirring chamber, and the cleaning liquid is added through the cleaning liquid inlet pipe 15 to fully wash the filter cake, and then the cleaning liquid is discharged through the discharge port 7. At this time, the filter cake can be sampled and inspected through the process sampling port 9. After the sample is qualified, the heat medium is circulated and transported to the upper heating jacket 1 and the inner side of the cone heating jacket 3 through the heat medium delivery pipe 6 to heat and dry the filter cake. The fully dried filter cake can be completely discharged from the cone heating jacket 3 through the discharge port 8.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A filtering and drying device for combined alkali production, comprising an upper heating jacket (1), a filtering and heating cylinder (2), and a conical heating jacket (3), characterized in that: A mounting ring (20) is fixedly provided on the outer surface of the connection between the upper heating jacket (1) and the conical heating jacket (3), and a U-shaped jacket (5) is sleeved on the surface of the mounting ring (20). The upper heating jacket (1) and the conical heating jacket (3) together form a vacuum drying stirring chamber. A discharge port (8) is provided at the center of the bottom end of the conical heating jacket (3), a liquid discharge port (7) is provided on one side of the bottom end of the conical heating jacket (3), and a process sampling port (9) is provided on the other side of the bottom end of the conical heating jacket (3). A stirring rod (11) is provided on the inner side of the conical heating jacket (3), and a spiral welding thread is welded on the outer surface of the stirring rod (11). A stirring paddle (10), a coupling (12) is arranged at the top end of the stirring rod (11), a forward and reverse motor (13) is arranged at the top end of the coupling (12), the filtering and heating cylinder (2) is located on the surface of one side of the top end of the upper heating jacket (1), a booster plate (21) is arranged on the inner side of the filtering and heating cylinder (2), a mounting hole (22) is opened on the surface of the booster plate (21), a filter element (17) is arranged on the inner side of the mounting hole (22), a connecting pipe (23) is arranged on one side of the filtering and heating cylinder (2), a booster (18) is arranged at one end of the connecting pipe (23), and a top cover (19) is arranged on the top end of the filtering and heating cylinder (2).

2. A filtering and drying device for combined alkali production according to claim 1, characterized in that: A cleaning liquid inlet pipe (15) is provided on one side surface of the top end of the upper heating jacket (1), a branch pipe is provided at the bottom end of the cleaning liquid inlet pipe (15), and a high-pressure nozzle is provided at the bottom end of the branch pipe.

3. A filtering and drying device for combined alkali production according to claim 1, characterized in that: A backwash liquid inlet pipe is provided on one side surface of the filter heating cylinder (2), a reaction liquid inlet pipe is provided on the other side surface of the top end of the filter heating cylinder (2), and a discharge ball valve is provided at the connection between the filter heating cylinder (2) and the upper heating jacket (1).

4. A filtering and drying device for combined alkali production according to claim 1, characterized in that: The upper heating jacket (1) and the conical heating jacket (3) are connected to a heat medium delivery pipe (6) on one side surface, and a support frame (4) is fixedly provided on the outer surface of the upper heating jacket (1).

5. A filtering and drying device for combined alkali production according to claim 1, characterized in that: A discharge valve is provided at the bottom end of the discharge port (8).

6. A filtering and drying device for combined alkali production according to claim 1, characterized in that: A vacuum compressor (14) is provided at the top of the upper heating jacket (1), and a maximum water level sensor probe is provided on the inner wall of the upper heating jacket (1).

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