Bromine high-efficiency recovery device

Abstract

The utility model discloses a kind of bromine efficient recovery devices, including reaction tank and separation tank, rotating installation is rotated in the reaction tank and is fed component, the rotating feeding component includes annular main pipe, the lower side of annular main pipe is equipped with multiple vertical setting riser along its circumference, the inner flow passage of riser is communicated with the inner flow passage of annular main pipe, and multiple liquid outlet holes are equipped on the lateral wall of riser;The lower end of riser is fixedly installed with disc, the central axis of disc is coaxially arranged with the axis of annular main pipe, the central axis position of disc is equipped with main gas pipe, multiple branch gas pipes are vertically equipped on the lateral wall of main gas pipe, multiple gas outlet holes are equipped on the pipe wall of branch gas pipe, and the inner flow passage of main gas pipe is communicated with the inner flow passage of branch gas pipe.The utility model can make hydrogen bromide gas and bromine-containing waste liquid fully react with oxidizing agent in reaction tank, and bromine can be rapidly separated, and extraction purity is high.

Description

Technical Field

[0001] This utility model relates to a high-efficiency bromine recovery device, belonging to the field of bromine recovery technology. Background Technology

[0002] Bromine is an important chemical raw material and a major branch of the marine chemical industry. A wide variety of chemical products, including inorganic bromides, bromates, and bromine-containing organic compounds, are derived from bromine. Furthermore, bromine-based flame retardants are heavily reliant on bromine and cannot be substituted. As an indispensable chemical raw material, bromine is gradually penetrating various industries and fields with the development of my country's industrial technology.

[0003] During the production of brominated flame retardants, some bromine cannot react completely and is emitted as hydrogen bromide as a byproduct, which pollutes the environment and wastes bromine. In addition, after the reaction is completed, some unreacted bromine remains in the waste liquid, which also wastes bromine and pollutes the environment.

[0004] In existing technologies, hydrogen bromide gas and waste liquid are generally reacted with an oxidant to extract and recover bromine. However, the above oxidation reaction and bromine extraction have some drawbacks: First, hydrogen bromide gas and waste liquid are mixed with the oxidant separately, requiring two reaction containers, and the mixing effect is poor, resulting in incomplete reaction; Second, after the mixture is left to stand, the bromine settles at the bottom of the container, while the waste liquid floats on the top, making it difficult to separate the bromine from the waste liquid and hindering bromine extraction.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This invention addresses the shortcomings of the prior art by providing a high-efficiency bromine recovery device that allows hydrogen bromide gas and bromine-containing waste liquid to fully react with the oxidant in the reaction tank, and enables rapid separation of bromine with high extraction purity.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] A high-efficiency bromine recovery device includes a reaction tank and a separation tank. A rotary feeding component is rotatably installed inside the reaction tank. The rotary feeding component includes an annular main pipe. Multiple vertically arranged risers are provided along the circumference of the lower side of the annular main pipe. The inner flow channel of the risers is connected to the inner flow channel of the annular main pipe. Multiple liquid outlet holes are provided on the side wall of the risers.

[0009] A disc is fixedly installed at the lower end of the riser. The central axis of the disc is coaxial with the axis of the annular main pipe. A main air pipe is located at the central axis of the disc. Multiple branch pipes are arranged perpendicularly to the side wall of the main air pipe. Multiple air outlets are provided on the pipe wall of the branch pipes. The inner flow channel of the main air pipe is connected to the inner flow channel of the branch pipes.

[0010] Furthermore, each bronchus extends to both sides of the main trachea, and both ends of the bronchus are located inside the riser, with the axes of two adjacent bronchus arranged perpendicularly.

[0011] Furthermore, the lower end of the main gas pipe extends rotatably below the disc and is rotatably mounted on the bottom wall of the reaction vessel; a vertical liquid inlet pipe is provided at the central axis position of the annular main pipe, the inner flow channel of the vertical liquid inlet pipe is connected to the inner flow channel of the annular main pipe, and the vertical liquid inlet pipe is rotatably mounted on the top wall of the reaction vessel.

[0012] Furthermore, a first rotary joint is installed at the lower end of the main air pipe, and a second rotary joint is installed at the upper end of the vertical liquid inlet pipe.

[0013] Furthermore, the vertical liquid inlet pipe is driven by a belt drive system, and a drive motor is installed on the top of the reaction tank, which drives the belt drive system to rotate.

[0014] Furthermore, the reaction tank and the separation tank are connected by a liquid infusion pipe, and a liquid infusion pump is installed on the pipe section. The separation tank is provided with an upper mesh plate and a lower mesh plate spaced vertically, and the outlet end of the liquid infusion pipe extends into the space between the upper mesh plate and the lower mesh plate.

[0015] Furthermore, the bottom of the separator is provided with a first output pipe and a second output pipe. The first output pipe is located below the second output pipe. The first output pipe is used to discharge bromine, and the second output pipe is used to discharge the mixture.

[0016] Furthermore, a first solenoid valve and a detection sensor are installed on the first output tube, and a second solenoid valve is installed on the second output tube.

[0017] Furthermore, a viewing mirror is also installed on the first output tube.

[0018] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0019] A rotary feeding component is rotatably installed inside the reaction tank. The rotary feeding component includes a riser and a main gas pipe inside the riser. A branch gas pipe is installed on the main gas pipe. Multiple liquid outlet holes are provided on the side wall of the riser, and multiple gas outlet holes are provided on the pipe wall of the branch gas pipe. An oxidant solution is added to the reaction tank. Bromine-containing waste liquid is passed into the annular main pipe and flows into the reaction tank through the riser. Hydrogen bromide gas is passed into the main gas pipe and flows into the reaction tank through the branch gas pipe. The rotary feeding component rotates while conveying bromine-containing waste liquid and hydrogen bromide gas into the reaction tank, so that hydrogen bromide gas and bromine-containing waste liquid can fully react with the oxidant in the reaction tank and simultaneously react with the oxidant to generate bromine.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the rotary feeding component in this utility model.

[0023] In the picture,

[0024] 1-Reaction vessel, 2-Separation vessel, 3-Rotary feeding component, 4-Annular main pipe, 5-Riser, 6-Disc, 7-Main air pipe, 8-Branch air pipe, 9-First rotary joint, 10-Second rotary joint, 11-Vertical inlet pipe, 12-Belt drive system, 13-Drive motor, 14-Infusion pump, 15-Infusion pipe, 16-Mesh perforated plate, 17-Lower mesh perforated plate, 18-First output pipe, 19-Sight mirror, 20-Detection sensor, 21-Second output pipe, 22-Second solenoid valve, 23-First solenoid valve. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0026] like Figure 1 As shown, this utility model provides a high-efficiency bromine recovery device, including a reaction tank 1 and a separation tank 2. A rotary feeding component 3 is rotatably installed inside the reaction tank 1, such as... Figure 2 The rotary feeding component 3 includes an annular main pipe 4, and a plurality of vertically arranged risers 5 are provided on the lower side of the annular main pipe 4 along its circumference. The inner flow channel of the riser 5 is connected to the inner flow channel of the annular main pipe 4, and a plurality of liquid outlet holes (not shown in the figure) are provided on the side wall of the riser 5.

[0027] A disc 6 is fixedly installed at the lower end of the riser 5. The central axis of the disc 6 is coaxial with the axis of the annular main pipe 4. A main air pipe 7 is located at the central axis of the disc 6. Multiple branch pipes 8 are arranged perpendicularly to the side wall of the main air pipe 7. Multiple air outlets (not shown in the figure) are provided on the pipe wall of the branch pipes 8. The inner flow channel of the main air pipe 7 is connected to the inner flow channel of the branch pipes 8.

[0028] An oxidant solution is added to reaction tank 1. Bromine-containing waste liquid is introduced into the annular main pipe 4 and flows through the riser pipe 5 into reaction tank 1. Hydrogen bromide gas is introduced into the main gas pipe 7 and flows through the branch pipe 8 into reaction tank 1, thus allowing the hydrogen bromide gas and waste liquid to react simultaneously with the oxidant in reaction tank 1 to generate bromine. The mixture is then sent to separation tank 2 for separation.

[0029] like Figure 2 Each bronchus 8 extends to both sides of the main trachea 7, and both ends of the bronchus 8 are located inside the riser 5. The axes of two adjacent bronchus 8 are set perpendicularly.

[0030] The lower end of the main gas pipe 7 extends rotatably below the disc 6 and is rotatably mounted on the bottom wall of the reaction vessel 1; a vertical liquid inlet pipe 11 is provided at the central axis position of the annular main pipe 4, the inner flow channel of the vertical liquid inlet pipe 11 is connected to the inner flow channel of the annular main pipe 4, and the vertical liquid inlet pipe 11 is rotatably mounted on the top wall of the reaction vessel 1.

[0031] Furthermore, a first rotary joint 9 is installed at the lower end of the main air pipe 7, and a second rotary joint 10 is installed on the upper part of the vertical liquid inlet pipe 11.

[0032] The vertical liquid inlet pipe 11 is driven by a belt drive system 12, and a drive motor 13 is installed on the top of the reaction tank 1, which drives the belt drive system 12 to rotate.

[0033] The reaction tank 1 and the separation tank 2 are connected by a liquid infusion pipe 15. A liquid infusion pump 14 is installed on a section of the liquid infusion pipe 15. The separation tank 2 is provided with a mesh plate 16 and a lower mesh plate 17 spaced vertically. The outlet end of the liquid infusion pipe 15 extends into the space between the mesh plate 16 and the lower mesh plate 17.

[0034] The bottom of the separator 2 is provided with a first output pipe 18 and a second output pipe 21. The first output pipe 18 is located below the second output pipe 21. The first output pipe 18 is used to discharge bromine, and the second output pipe 21 is used to discharge the mixed liquid.

[0035] A first solenoid valve 23 and a detection sensor 20 are installed on the first output pipe 18, and a second solenoid valve 22 is installed on the second output pipe 21. The detection sensor 20 is used to detect whether the bromine in the pipe has been completely discharged.

[0036] Furthermore, a viewing mirror 19 is also installed on the first output tube 18. Bromine is a dark reddish-brown liquid, and the viewing mirror 19 can be used to visually inspect whether the bromine in the tube has been completely discharged.

[0037] The specific working principle of this utility model:

[0038] The rotary feeding component 3 is rotatably installed inside the reaction tank 1. The rotary feeding component 3 includes a riser 5 and a main gas pipe 7 inside the riser 5. A branch gas pipe 8 is installed on the main gas pipe 7. The side wall of the riser 5 is provided with multiple liquid outlet holes, and the pipe wall of the branch gas pipe 8 is provided with multiple gas outlet holes. An oxidant solution is added to the reaction tank 1. The bromine-containing waste liquid is passed into the annular main pipe 4 and flows into the reaction tank 1 through the riser 5. Hydrogen bromide gas is passed into the main gas pipe 7 and flows into the reaction tank 1 through the branch gas pipe 8. The rotary feeding component 3 rotates while conveying the bromine-containing waste liquid and hydrogen bromide gas into the reaction tank 1, so that the hydrogen bromide gas and the bromine-containing waste liquid can fully react with the oxidant in the reaction tank 1 and simultaneously react with the oxidant to generate bromine.

[0039] Inside the separator 2, the mixture is delivered through the outlet of the inlet pipe 15 to the space between the upper mesh plate 16 and the lower mesh plate 17. The upper mesh plate 16 and the lower mesh plate 17 prevent turbulence, causing bromine to settle downwards and the remaining liquid to flow upwards, resulting in faster and purer bromine separation. After separation, the first solenoid valve 23 opens, and the bromine at the bottom of the tank is discharged from the first output pipe 18. The detection sensor 20 detects the material in the pipe. Once the bromine has been discharged, the first solenoid valve 23 closes, and the second solenoid valve 22 opens, allowing the remaining liquid to be discharged from the second output pipe 21.

[0040] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A high-efficiency bromine recovery device, characterized in that: The reaction vessel includes a reaction vessel (1) and a separation vessel (2). A rotary feeding component (3) is rotatably installed inside the reaction vessel (1). The rotary feeding component (3) includes an annular main pipe (4). Multiple vertically arranged risers (5) are provided along the circumference of the lower side of the annular main pipe (4). The inner flow channel of the riser (5) is connected to the inner flow channel of the annular main pipe (4). Multiple liquid outlet holes are provided on the side wall of the riser (5). A disc (6) is fixedly installed at the lower end of the riser (5). The central axis of the disc (6) is coaxial with the axis of the annular main pipe (4). A main air pipe (7) is provided at the central axis of the disc (6). Multiple branch pipes (8) are provided perpendicularly to the side wall of the main air pipe (7). Multiple air outlets are provided on the pipe wall of the branch pipe (8). The inner flow channel of the main air pipe (7) is connected to the inner flow channel of the branch pipe (8).

2. The bromine high-efficiency recovery device as described in claim 1, characterized in that: Each bronchus (8) extends to both sides of the main trachea (7), and both ends of the bronchus (8) are located inside the riser (5), with the axes of two adjacent bronchus (8) set perpendicularly.

3. The bromine high-efficiency recovery device as described in claim 1, characterized in that: The lower end of the main gas pipe (7) extends rotatably below the disc (6) and is rotatably mounted on the bottom wall of the reaction vessel (1); a vertical liquid inlet pipe (11) is provided at the central axis position of the annular main pipe (4), the inner flow channel of the vertical liquid inlet pipe (11) is connected to the inner flow channel of the annular main pipe (4), and the vertical liquid inlet pipe (11) is rotatably mounted on the top wall of the reaction vessel (1).

4. The bromine high-efficiency recovery device as described in claim 3, characterized in that: The lower end of the main air pipe (7) is equipped with a first rotary joint (9), and the upper end of the vertical liquid inlet pipe (11) is equipped with a second rotary joint (10).

5. The bromine high-efficiency recovery device as described in claim 4, characterized in that: The vertical inlet pipe (11) is driven by a belt drive system (12), and a drive motor (13) is installed on the top of the reaction tank (1). The drive motor (13) drives the belt drive system (12) to rotate.

6. The bromine high-efficiency recovery device as described in claim 1, characterized in that: The reaction tank (1) and the separation tank (2) are connected by a liquid infusion pipe (15). A liquid infusion pump (14) is installed on a section of the liquid infusion pipe (15). The separation tank (2) is provided with a mesh plate (16) and a lower mesh plate (17) spaced vertically. The outlet end of the liquid infusion pipe (15) extends between the mesh plate (16) and the lower mesh plate (17).

7. The bromine high-efficiency recovery device as described in claim 6, characterized in that: The bottom of the separator (2) is provided with a first output pipe (18) and a second output pipe (21). The first output pipe (18) is located below the second output pipe (21). The first output pipe (18) is used to discharge bromine, and the second output pipe (21) is used to discharge the mixture.

8. The bromine high-efficiency recovery device as described in claim 7, characterized in that: The first output tube (18) is equipped with a first solenoid valve (23) and a detection sensor (20), and the second output tube (21) is equipped with a second solenoid valve (22).

9. The bromine high-efficiency recovery device as described in claim 8, characterized in that: A viewing mirror (19) is also installed on the first output tube (18).

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