Ammonium phosphate drum granulation tube reaction device

Abstract

The utility model discloses an ammonium phosphate drum granulation tube reaction device which comprises a pre-neutralization tank, a tube reaction tank, a tube C, an output tube, a tube A, a tube B, a power pump, a cylinder and a discharge tube, the side wall of the lower part of the pre-neutralization tank is connected with a pipe C; an output pipe is arranged on the side wall of the lower portion of the pipe reversing groove, the output end of the output pipe is connected with a pipe A and a pipe B, power pumps are arranged on the pipe A and the pipe B, and a cylinder is arranged on the pipe A. The cylinder is a round pipe with two open ends, the output end of the pipe C extends into the cylinder, and a discharging pipe is connected to the side wall of the cylinder. The pre-neutralization tank, the pipe reaction tank and the pipeline are used for mixing reaction, so that the reaction is sufficient, and deposition blockage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of phosphate drum granulation technology, specifically to a phosphate drum granulation tube reversing device. Background Technology

[0002] As fertilizers are considered the food source of food, ensuring a stable and sufficient supply is crucial. However, with the gradual depletion of phosphate rock resources and the increasing proportion of slag acid in phosphoric acid production, the question arises: how to fully utilize high-solids slag acid to produce fertilizers suitable for agricultural production? During fertilizer production, high-solids slag acid easily deposits and clogs the DAP washing system, resulting in poor flowability of the raffinate concentrate. Furthermore, after the slag acid and raffinate concentrate react with ammonia-containing tail gas in the washing system to form a slurry, their flowability further deteriorates, leading to frequent scaling on the pipe walls. Additionally, the excessively long slurry residence time affects the product's water-to-powder ratio (P2O5 / water) qualification rate. Therefore, a rotary drum granulation tube reaction device for ammonium phosphate is provided to facilitate the reaction of slag acid and raffinate concentrate, minimizing their impact. Utility Model Content

[0003] To address the above problems, the purpose of this utility model is to provide a reverse-flow device for a rotating drum granulation tube of ammonium phosphate.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A rotary drum granulation device for ammonium phosphate includes: a pre-neutralization tank, a tube reversing tank, a tube C, an output tube, a tube A, a tube B, a power pump, and a cylinder. The lower side wall of the pre-neutralization tank is connected to the tube C. A discharge tube is provided on the lower side wall of the tube reversing tank. The output end of the output tube is connected to the tubes A and B. The power pump is provided on the tubes A and B. A cylinder is provided on the tube A. The cylinder is a circular tube with open ends. The output end of the tube C extends into the cylinder. The discharge tube is connected to the side wall of the cylinder.

[0006] Furthermore, each of pipes A, B, and C is equipped with a second control valve. Furthermore, both the pre-neutralization tank and the pipe reversal tank are equipped with a rotating shaft, driven by a first motor. A stirring paddle is located at the lower part of the rotating shaft, and the stirring paddle has evenly spaced flow ports.

[0007] Furthermore, a steam pipe is spirally arranged on the side wall of the pre-neutralization tank, and a first control valve is provided on the inlet end of the steam pipe.

[0008] Furthermore: the output end of the tube C is located inside the cylinder, and the tube C inside the cylinder is configured as a flexible tube; the tube C is connected to the air rod, and the air rod is connected to the driving air pump.

[0009] Furthermore, a vibrating mesh plate is provided inside the cylinder, and the vibrating mesh plate is connected to the second motor.

[0010] Furthermore: a fixing plate is provided at the top of the pre-neutralization tank and the pipe reverse tank, and the rotating shaft is set on the fixing plate.

[0011] Furthermore: the pre-neutralization tank, the pipe reverse tank, and the side wall of the fixing plate are all provided with grooves; the grooves of the pre-neutralization tank and the fixing plate, as well as the grooves of the pipe reverse tank and the fixing plate, are all covered with cover plates, the side walls of the cover plates are provided with protruding plates, and the cover plates are provided with handles.

[0012] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0013] (1) Use a pre-neutralization tank to carry out the slag acid heating reaction. By increasing the temperature of the slag acid, the temperature of the reaction slurry in the tube reactor is increased, thereby reducing the moisture content in the product.

[0014] (2) Utilize pre-neutralization tanks, pipe counter-tanks and pipeline mixing reactions to ensure sufficient reaction and reduce sedimentation and blockage. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of this utility model.

[0016] Figure 2 is a schematic diagram of the cylindrical structure of this utility model.

[0017] Figure 3 is a schematic diagram of the structure of the steam pipe of this utility model.

[0018] Figure 4 is a top view of the pre-neutralization tank of this utility model.

[0019] In the diagram: 1-Pre-neutralization tank, 2-Pipe reverse tank, 3-Rotating shaft, 4-First motor, 5-Agitator, 6-Steam pipe, 7-First control valve, 8-Pipe C, 9-Output pipe, 10-Pipe A, 11-Pipe B, 12-Power pump, 13-Cylinder, 14-Support beam, 15-Air rod, 16-Drive air pump, 18-Vibrating screen, 19-Second motor, 20-Fixing plate, 21-Groove, 22-Cover plate, 23-Protruding plate, 24-Handle, 25-Discharge pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] A rotary drum granulation device for ammonium phosphate includes: a pre-neutralization tank 1, a tube reversing tank 2, a rotating shaft 3, a first motor 4, a stirring paddle 5, a steam pipe 6, a first control valve 7, a pipe C8, an output pipe 9, a pipe A10, a pipe B11, a power pump 12, a cylinder 13, a support beam 14, an air rod 15, a drive air pump 16, a vibrating screen plate 18, a second motor 19, a fixing plate 20, a groove 21, a cover plate 22, a protruding plate 23, a handle 24, and a discharge pipe 25.

[0022] Both the pre-neutralization tank 1 and the tube inversion tank 2 are equipped with a rotating shaft 3, which is driven by the first motor 4. A stirring paddle 5 is provided at the lower part of the rotating shaft 3, and the stirring paddle 5 has flow ports evenly opened on it.

[0023] A steam pipe 6 is spirally arranged on the side wall of the pre-neutralization tank 1, and a first control valve 7 is provided on the air inlet end of the steam pipe 6.

[0024] A pipe C8 is connected to the lower side wall of the pre-neutralization tank 1. An output pipe 9 is provided on the lower side wall of the pipe counter-tank 2. The output end of the output pipe 9 is connected to pipes A10 and B11. A power pump 12 is provided on pipes A10 and B11. A cylinder 13 is provided on pipe A10. The cylinder 13 is a round pipe with open ends. The output end of pipe C8 extends into the cylinder 13. A second control valve 14 is provided on pipes A10, B11, and C8. A discharge pipe 25 is connected to the side wall of cylinder 13.

[0025] The output end of pipe C8 is located inside cylinder 13 and is configured as a flexible hose. Pipe C8 is connected to air rod 15, which is a small air rod. Air rod 15 is connected to drive air pump 16. Vibration screen 18 is installed inside cylinder 13 and is connected to second motor 19.

[0026] The pre-neutralization tank 1 and the pipe reverse tank 2 are provided with a fixed plate 20 at the top. The rotating shaft 3 is set on the fixed plate 20. The side walls of the pre-neutralization tank 1, the pipe reverse tank 2, and the fixed plate 20 are all provided with grooves 21. Cover plates 22 are placed on the grooves 21 of the pre-neutralization tank 1 and the fixed plate 20 and the grooves 21 of the pipe reverse tank 2 and the fixed plate 20. The side walls of the cover plates 22 are provided with protrusions 23 and handles 24 are provided on the cover plates 22.

[0027] Working process: The residue acid, washing liquid and tail wash water from the phosphoric acid reaction enter the pre-neutralization tank 1. A steam pipe 6 is spirally installed on the outer wall of the pre-neutralization tank 1. The pre-neutralization tank 1 is equipped with a shaft 3, a first motor 4 and a stirring paddle 5 to facilitate heating and mixing of the liquid in the pre-neutralization tank 1, and then output through pipe C8.

[0028] The reverse mixing tank 2 receives residual acid and washing liquid from the phosphoric acid reaction. The reverse mixing tank 2 is equipped with a shaft 3, a first motor 4, and a stirring paddle 5 to facilitate mixing of the liquids. The mixture is then output through an output pipe 9. The output end of the output pipe 9 is connected to pipes A10 and B11. Pipe A10 has a cylinder 13, which is an open-ended circular tube. The output end of pipe C8 extends into the cylinder 13. The liquids from pipes A10 and C8 are mixed and reacted within the cylinder 13. Pipe C8 is connected to a pneumatic rod 15. The pneumatic rod 15 is a small pneumatic rod connected to a drive air pump 16, allowing for adjustment of the position of the output end of pipe C8 as needed. A vibrating screen 18 is installed inside the cylinder 13, connected to a second motor 19 to facilitate mixing and reaction. The mixture is then output through a discharge pipe 25.

[0029] The pre-neutralization tank 1, the pipe reverse tank 2, and the fixing plate 20 are all provided with grooves 21, and the cover plate 22 is placed in the grooves 21 for easy opening as needed.

[0030] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that those skilled in the art can devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A reverse-flow device for a rotary drum granulation tube of ammonium phosphate, characterized in that: include: The pre-neutralization tank (1), the tube inversion tank (2), the tube C (8), the output tube (9), the tube A (10), the tube B (11), the power pump (12), the cylinder (13), and the discharge pipe (25) are provided. The lower side wall of the pre-neutralization tank (1) is connected to the tube C (8). The lower side wall of the tube inversion tank (2) is provided with the output tube (9), the output end of the output tube (9) is connected to the tube A (10) and the tube B (11), the power pump (12) is provided on the tube A (10) and the tube B (11), and the cylinder (13) is provided on the tube A (10). The cylinder (13) is a round tube with open ends, the output end of the tube C (8) extends into the cylinder (13), and the discharge pipe (25) is connected to the side wall of the cylinder (13).

2. The phosphate ammonium rotary drum granulation tube reversing device according to claim 1, characterized in that: A second control valve (14) is provided on each of the pipes A (10), B (11), and C (8).

3. The phosphate ammonium rotary drum granulation tube reversing device according to claim 1, characterized in that: The pre-neutralization tank (1) and the tube inversion tank (2) are both equipped with a rotating shaft (3), which is driven by the first motor (4). A stirring paddle (5) is provided at the lower part of the rotating shaft (3), and the stirring paddle (5) has flow ports evenly opened on it.

4. The phosphate ammonium rotary drum granulation tube reversing device according to claim 1, characterized in that: A steam pipe (6) is spirally arranged on the side wall of the pre-neutralization tank (1), and a first control valve (7) is provided on the air inlet end of the steam pipe (6).

5. The phosphate ammonium rotary drum granulation tube reversing device according to claim 1, characterized in that: The output end of the tube C (8) is set inside the cylinder (13) and the tube C (8) inside the cylinder (13) is set as a flexible tube; the tube C (8) is connected to the air rod (15) and the air rod (15) is connected to the drive air pump (16).

6. The phosphate ammonium rotary drum granulation tube reversing device according to claim 1, characterized in that: A vibrating mesh plate (18) is provided inside the cylinder (13), and the vibrating mesh plate (18) is connected to the second motor (19).

7. The phosphate ammonium rotary drum granulation tube reversing device according to claim 1, characterized in that: The pre-neutralization tank (1) and the tube inversion tank (2) are provided with a fixing plate (20) at the top, and the rotating shaft (3) is provided on the fixing plate (20).

8. The phosphate ammonium rotary drum granulation tube reversing device according to claim 1, characterized in that: The pre-neutralization tank (1), the pipe reverse tank (2), and the fixing plate (20) are all provided with grooves (21); the grooves (21) of the pre-neutralization tank (1) and the fixing plate (20) and the grooves (21) of the pipe reverse tank (2) and the fixing plate (20) are all provided with cover plates (22), the side walls of the cover plates (22) are provided with protrusions (23), and the cover plates (22) are provided with handles (24).

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