Device for preparing bromine from industrial waste salt
By designing circular circuits and spraying mechanisms in the preparation of bromine in industrial waste salt, the problem of low contact with the air and low extraction efficiency of the response solution and the efficiency of the extraction are solved, and the more efficient bromine extraction and solution use.
Patent Information
- Application Number
- CN202421131388.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-22
AI Technical Summary
In the prior art, the reaction liquid is sprayed from the blowout tower due to the limitation of position and quantity, so the contact degree with air is small, and the free bromine at the separation point is limited in a single process, resulting in low extraction efficiency and low solution utilization.
Design a device that uses industrial waste salt to prepare bromine, and use the reactor and blowing out the tower to form a circular circuit, so that the reactor repeats the blowing process of the blowing tower, increasing the extract of the bromine in the reactor, thereby increasing the extraction amount. This device includes a spray mechanism that improves the diffusion of the reactor and the contact with the air through the design of the spray component and the spray head.
Through the circular circuit and spray design, the amount of bromine extract in the reactor is increased, the contact with the air is enhanced, and the extraction efficiency of bromine extract and the utilization of solution are improved.
Smart Images
Figure CN222401489U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bromine preparation, in particular to a device for preparing bromine by utilizing industrial waste salt. Background Art
[0002] Bromine is one of the important chemical raw materials and a major branch of the marine chemical industry. The various inorganic bromides, bromates and bromine-free organic compounds derived from it have special value in the development of the national economy and science and technology. There is unused bromine in the industrial waste salt solution. In the prior art, when extracting bromine from industrial waste salt, the reaction liquid after acidification and oxidation of the industrial waste salt solution is first sent to the blow-out tower, sprayed from the top of the blow-out tower, and at the same time, air is introduced into the bottom of the tower body and carries the gaseous free bromine into the absorption tower. After absorption by the absorption tower, refined bromine is obtained after being treated by an evaporation crystallizer. However, due to position and quantity restrictions, the reaction liquid has a small contact with the air when sprayed from the blow-out tower. The free bromine at the separation point in a single process is limited, and a portion of bromine is still in the solution. On the one hand, the extraction efficiency is low, and on the other hand, the utilization rate of the solution accumulated at the bottom of the blowing tower is low. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in order to overcome the problems in the prior art that the reaction liquid has a small contact with the air due to position and quantity restrictions when it is sprayed from the blowing tower, the free bromine at the separation point in a single process is limited, and there is still a part of the bromine in the solution, which on the one hand has low extraction efficiency and on the other hand has low utilization rate of the solution re-accumulated at the bottom of the blowing tower, a device for preparing bromine using industrial waste salt is provided.
[0004] The utility model solves the technical problem by adopting the following technical scheme: a device for preparing bromine by using industrial waste salt, comprising a reactor, a blow-out tower, an absorption tower and an evaporation crystallizer, wherein the reactor is used for accommodating an industrial waste salt solution and providing a reaction area for the industrial waste salt solution, the liquid outlet of the reactor is connected with the liquid inlet of the blow-out tower, the liquid outlet of the blow-out tower is communicated with the reflux inlet of the reactor, the blow-out tower is used for obtaining gaseous free bromine, the air outlet of the blow-out tower is communicated with the air inlet of the absorption tower, the absorption tower is used for accommodating a solution capable of absorbing gaseous free bromine, the liquid outlet of the absorption tower is connected with the liquid inlet of the evaporation crystallizer, the evaporation crystallizer is used for refining the solution passing through the absorption tower and obtaining bromine, and a circulation loop is formed by the reactor and the blow-out tower, so that the reaction liquid in the reactor is repeatedly blown out through the blow-out tower, the extraction of bromine in the reaction liquid is increased, and thus the amount of extracted bromine is increased.
[0005] In order to solve the problems of low contact between the reaction liquid and the air, and low separation efficiency due to the limitation of the spraying amount, the present invention further includes a blowing tower including an outer shell, an air pump and a spray mechanism, the outer shell has a cavity, the top surface of the outer shell has an air outlet, the bottom surface of the outer shell has a liquid outlet, the upper part of the outer shell has a liquid inlet, the lower part of the outer shell has an air inlet, the air pump is located outside the outer shell, the output end of the air pump is connected to the air inlet, the air pump is used to pump gas into the outer shell, the input end of the spray mechanism is connected to the liquid inlet of the outer shell, and the spray mechanism is used to spray the solution input into the reactor in a dispersed state into the cavity of the outer shell.
[0006] The spray mechanism further comprises a connecting pipe and a plurality of spray components. The input end of the connecting pipe is connected to the liquid inlet of the shell. The connecting pipe extends along the axial direction of the blowing tower. The spray components are arranged on the connecting pipe at intervals from top to bottom.
[0007] In order to solve the problem that the fixed spray range leads to overlapping spray areas, resulting in uneven dispersion of the reaction liquid and low contact with the air, the spray assembly further includes a spray plate and a plurality of spray heads, the spray plate has a flow channel inside, the spray plate and the connecting pipe are rotatably connected, the spray head is installed on the bottom of the spray plate, and the input end of the spray head is connected to the flow channel of the spray plate.
[0008] In order to solve the problem of slow rotation speed of the rotating disk, the spray head is further arranged in an inclined manner.
[0009] In order to solve the problem of slow rotation speed of the rotating disk, the spray assembly further includes a driving member, the driving member and the connecting pipe are fixedly connected, the output end of the driving member is transmission-connected to the spray disk, and the driving member is used to provide power for the rotation of the spray disk.
[0010] In order to solve the problem of low stability of the connecting pipe, the bottom of the connecting pipe is further fixedly connected to the outer shell through a connecting frame.
[0011] The beneficial effects of the utility model are as follows: the utility model provides a device for preparing bromine by using industrial waste salt, wherein a circulating loop is formed by a reactor and a blowing tower, so that the reaction liquid in the reactor is repeatedly blown out through the blowing tower, thereby increasing the extraction of bromine in the reaction liquid, thereby increasing the amount of extracted bromine;
[0012] Through the design of multiple spray components, the reaction liquid can have a greater degree of dispersion at different heights, avoiding the reduction of its sealing due to the aggregation into droplets during the spraying and falling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 This utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.
[0016] In the figure: 1. reactor, 2. blowing tower, 21. shell, 22. air pump, 23. spray mechanism, 231. connecting pipe, 232. spray assembly, 2321. spray plate, 2322. spray head, 233. connecting frame, 3. absorption tower, 4. evaporation crystallizer. DETAILED DESCRIPTION
[0017] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0018] Embodiment 1:
[0019] like Figure 1 The utility model is a schematic diagram of the structure of a device for preparing bromine by using industrial waste salt, comprising a reactor 1, a blow-out tower 2, an absorption tower 3 and an evaporation crystallizer 4, wherein the reactor 1 is used to accommodate an industrial waste salt solution and provide a reaction area for the industrial waste salt solution, the liquid outlet of the reactor 1 is connected to the liquid inlet of the blow-out tower 2, the liquid outlet of the blow-out tower 2 is connected to the reflux inlet of the reactor 1, the blow-out tower 2 is used to obtain gaseous free bromine, the air outlet of the blow-out tower 2 is connected to the air inlet of the absorption tower 3, the absorption tower 3 is used to accommodate a solution capable of absorbing gaseous free bromine, the liquid outlet of the absorption tower 3 is connected to the liquid inlet of the evaporation crystallizer 4, the evaporation crystallizer 4 is used to refine the solution in the absorption tower 3 and obtain bromine, and a circulation loop is formed by the reactor 1 and the blow-out tower 2, so that the reaction liquid in the reactor 1 is repeatedly blown out through the blow-out tower, the extraction of bromine in the reaction liquid is increased, and thus the amount of extracted bromine is increased.
[0020] A water pump is installed between the reflux inlet of the reactor 1 and the liquid outlet of the blowing tower 2, so that the reaction liquid that has passed the blowing process can flow back into the reactor 1 and pass through the blowing process again, thereby improving the extraction of bromine. A water pump is installed between the liquid outlet of the absorption tower 3 and the liquid inlet of the evaporation crystallizer 4, so that the solution that absorbs bromine is pumped into the evaporation crystallizer 4.
[0021] like Figure 1As shown, the blowing tower 2 includes a shell 21, an air pump 22 and a spray mechanism 23. The shell 21 has a cavity, the top surface of the shell 21 has an air outlet, the bottom surface of the shell 21 has a liquid outlet, the upper part of the shell 21 has a liquid inlet, and the lower part of the shell 21 has an air outlet. The air pump 22 is located outside the shell 21, and the output end of the air pump 22 is connected to the air outlet. The air pump 22 is used to pump gas into the shell 21. The input end of the spray mechanism 23 is connected to the liquid inlet of the shell 21, and the spray mechanism 23 is used to spray the solution input into the reactor 1 in a dispersed state in the cavity of the shell 21.
[0022] like Figure 2 As shown, the spray mechanism 23 includes a connecting pipe 231 and a plurality of spray components 232. The input end of the connecting pipe 231 is connected to the liquid inlet of the shell 21. The connecting pipe 231 extends along the axial direction of the blowing tower 2. The spray components 232 are arranged on the connecting pipe 231 at intervals from top to bottom. Through the design of multiple spray components 232, the reaction liquid can have a greater degree of dispersion at different heights, avoiding the reduction of its sealing due to the aggregation into droplets during the spraying and falling process.
[0023] like Figure 2 As shown, the spray assembly 232 includes a spray plate 2321 and a plurality of spray heads 2322. The spray plate 2321 has a flow channel inside. The spray plate 2321 and the connecting pipe 231 are rotatably connected. The spray head 2322 is installed on the bottom surface of the spray plate 2321, and the input end of the spray head 2322 is connected to the flow channel of the spray plate 2321. The flow channel of the spray plate 2321 is annular in structure. The connecting pipe 231 is provided with a through hole connected to the flow channel of the spray plate 2321. During the spraying process, a certain degree of force can be provided to enable the spray plate 2321 to deflect, shake or rotate, thereby improving the dispersion uniformity of the reaction liquid in the inner cavity of the shell 21 after spraying, thereby improving its contact with the air and being able to carry out more gaseous free bromine.
[0024] During operation, the reaction liquid can repeatedly undergo the blowing process, so that the device can extract bromine in the reaction liquid as much as possible without affecting the subsequent processes, increasing the amount of bromine extracted and reducing waste.
[0025] Embodiment 2:
[0026] The technical feature that distinguishes Example 2 from Example 1 is the arrangement of the spray head 2322 .
[0027] The spray head 2322 is arranged at an angle, so that the spray plate 2321 can obtain more deflection force, increase the rotation degree of the spray plate 2321, and change the spraying position of the spray head 2322, so that the sprayed reaction liquid is distributed more evenly.
[0028] Embodiment 3:
[0029] The technical feature that distinguishes Example 3 from Example 1 is the power source of the spray disk 2321 .
[0030] The spray assembly 232 includes a driving member, which is fixedly connected to the connecting pipe 231, and the output end of the driving member is transmission-connected to the spray disc 2321. The driving member is used to provide power for the rotation of the spray disc 2321, so that the rotation of the spray disc 2321 is more stable.
[0031] Embodiment 4:
[0032] The technical feature that distinguishes Example 4 from Example 1 is the installation of the connecting pipe 231 .
[0033] like Figure 1 As shown, the bottom of the connecting pipe 231 is fixedly connected to the housing 21 through the connecting frame 233, thereby improving the stability of the connection 231 and thus improving the reliability of the device.
[0034] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A device for preparing bromine using industrial waste salt, characterized in that: The invention comprises a reactor (1), a blow-out tower (2), an absorption tower (3) and an evaporation crystallizer (4), wherein the reactor (1) is used to contain an industrial waste salt solution and provide a reaction area for the industrial waste salt solution, the liquid outlet of the reactor (1) is connected to the liquid inlet of the blow-out tower (2), the liquid outlet of the blow-out tower (2) is connected to the reflux inlet of the reactor (1), the blow-out tower (2) is used to obtain gaseous free bromine, the air outlet of the blow-out tower (2) is connected to the air inlet of the absorption tower (3), the absorption tower (3) is used to contain a solution capable of absorbing gaseous free bromine, the liquid outlet of the absorption tower (3) is connected to the liquid inlet of the evaporation crystallizer (4), and the evaporation crystallizer (4) is used to refine the solution passing through the absorption tower (3) and obtain bromine.
2. The device for preparing bromine using industrial waste salt according to claim 1, characterized in that: The blowing tower (2) comprises an outer shell (21), an air pump (22) and a spray mechanism (23); the outer shell (21) has a cavity inside; the top surface of the outer shell (21) has an air outlet; the bottom surface of the outer shell (21) has a liquid outlet; the upper part of the outer shell (21) has a liquid inlet; the lower part of the outer shell (21) has an air outlet; the air pump (22) is located outside the outer shell (21); the output end of the air pump (22) is connected to the air outlet; the air pump (22) is used to pump gas into the outer shell (21); the input end of the spray mechanism (23) is connected to the liquid inlet of the outer shell (21); the spray mechanism (23) is used to spray the solution input into the reactor (1) into the cavity of the outer shell (21) in a dispersed state.
3. A device for preparing bromine using industrial waste salt as claimed in claim 2, characterized in that: The spray mechanism (23) comprises a connecting pipe (231) and a plurality of spray assemblies (232); the input end of the connecting pipe (231) is connected to the liquid inlet of the housing (21); the connecting pipe (231) extends along the axial direction of the blowing tower (2); and the spray assemblies (232) are arranged on the connecting pipe (231) at intervals from top to bottom.
4. A device for preparing bromine using industrial waste salt as claimed in claim 3, characterized in that: The spray assembly (232) comprises a spray disc (2321) and a plurality of spray heads (2322); the spray disc (2321) has a flow channel inside; the spray disc (2321) and the connecting pipe (231) are rotatably connected; the spray heads (2322) are mounted on the bottom surface of the spray disc (2321); and the input end of the spray head (2322) is connected to the flow channel of the spray disc (2321).
5. A device for preparing bromine using industrial waste salt as claimed in claim 4, characterized in that: The spray head (2322) is arranged at an angle.
6. The device for preparing bromine by utilizing industrial waste salt as claimed in claim 4, characterized in that: The spray assembly (232) comprises a driving member, the driving member is fixedly connected to the connecting pipe (231), the output end of the driving member is drivingly connected to the spray disc (2321), and the driving member is used to provide power for the rotation of the spray disc (2321).
7. A device for preparing bromine using industrial waste salt as claimed in claim 6, characterized in that: The bottom of the connecting pipe (231) is fixedly connected to the outer shell (21) via a connecting frame (233).