An apparatus for the extraction of indium from flue dust

Abstract

This utility model relates to the technical field of indium extraction equipment, and discloses an extraction device for indium from flue gas. The device includes a housing, with a feed inlet fixedly installed on the upper surface of the housing, an expansion port fixedly installed on the upper surface of the feed inlet, a crushing mechanism fixedly installed inside the feed inlet, and a stirring mechanism fixedly installed inside the housing. Two drive motors rotate two shafts in opposite directions, thereby driving multiple stirring rods to crosswise stir the leaching solution, resulting in a more uniform and thorough mixing of the leaching solution and flue gas. Heating wires installed inside the rotating shafts can also heat the leaching solution, accelerating the indium leaching reaction and increasing the indium extraction yield. A first elastic block continuously cleans the inner wall of the housing as it rotates with the stirring fan, preventing flue gas from adhering to the inner wall and affecting the indium extraction yield.

Description

Technical Field

[0001] This utility model relates to the technical field of indium extraction equipment, specifically to an extraction device for indium from flue gas. Background Technology

[0002] The equipment for extracting indium from flue dust is an integrated hydrometallurgical system specifically designed to recover indium resources from low-grade indium-containing flue dust. This type of equipment needs to be adapted to the characteristics of low indium content, high impurity levels, and fine particle size in the flue dust. Its core objective is to efficiently separate and enrich indium, ultimately producing metallic indium or high-purity indium compounds.

[0003] Most existing extraction equipment does not pulverize the flue dust when adding it, which may lead to the formation of flue dust clumps. If the clumps are not pulverized, they may not only block the feed inlet but also affect the subsequent indium leaching efficiency. In addition, most existing extraction equipment uses a single stirring rod to stir the flue dust during indium leaching, but the single stirring rod has the problem of insufficient mixing, which leads to a decrease in indium extraction rate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an extraction device for indium from flue gas, which has the advantages of being less prone to clogging and having a high extraction rate, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: an extraction device for indium from flue gas, comprising a device housing, a transparent glass plate fixedly installed on the front end face of the device housing, a discharge port fixedly installed on the lower end face of the device housing, a valve fixedly installed on the surface of the discharge port, a feed inlet fixedly installed on the upper end face of the device housing, an expansion port fixedly installed on the upper end face of the feed inlet, a crushing mechanism fixedly installed inside the feed inlet, and a stirring mechanism fixedly installed inside the device housing.

[0006] As a preferred embodiment of this utility model, a plurality of support columns are fixedly installed on the lower end face of the device housing, and anti-slip blocks are fixedly installed on the lower end face of each of the plurality of support columns.

[0007] As a preferred embodiment of this utility model, an leaching liquid inlet is fixedly installed on the upper surface of the device housing, and a sealing plug is fixedly installed on the upper surface of the leaching liquid inlet.

[0008] As a preferred embodiment of the present invention, the stirring mechanism includes two protective shells, each of which has a drive motor fixedly installed inside, and the output ends of the two drive motors are fixedly installed with couplings.

[0009] As a preferred embodiment of this utility model, a rotating shaft is fixedly installed on the upper end face of both couplings, a plurality of stirring rods are fixedly installed on the surface of both rotating shafts, an elastic block is fixedly installed on the outer side of each of the plurality of stirring rods, and a plurality of heating wires are fixedly installed inside both rotating shafts.

[0010] As a preferred embodiment of this utility model, the crushing mechanism includes a screen, a first crushing fan is fixedly installed on the lower end face of the screen, a second crushing fan is fixedly installed on the upper end face of the screen, and a second elastic block is fixedly installed at the end of the blades of both the first and second crushing fans.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This indium extraction equipment uses two drive motors to rotate two shafts in opposite directions, thereby driving multiple stirring rods to stir the leaching solution in a crisscross manner. This results in a more uniform and thorough mixing of the leaching solution and the dust. The heating wires installed inside the rotating shafts can also heat the leaching solution, thereby accelerating the indium leaching reaction and increasing the indium extraction yield. The first elastic block continuously cleans the inner wall of the device casing as it rotates with the stirring fan, thus preventing dust from adhering to the inner wall and affecting the indium extraction yield.

[0012] 2. This equipment for extracting indium from flue gas features a pulverizing mechanism installed inside the feed inlet. When flue gas is added to the extraction device through the feed inlet, the agglomerated flue gas is filtered out by a screen and accumulates on the upper part of the screen. The first and second pulverizing fans rotate in opposite directions, thus pulverizing the agglomerated flue gas during the cross-rotation of the fan blades. The pulverized flue gas can then pass through the screen into the extraction device, which can both prevent the feed inlet from being blocked and accelerate the subsequent leaching efficiency. Attached Figure Description

[0013] Figure 1 This is an isometric schematic diagram of the present invention; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is an isometric schematic diagram of the stirring mechanism of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the crushing mechanism of this utility model.

[0014] In the diagram: 1. Device casing; 2. Transparent glass plate; 3. Support column; 4. Anti-slip block; 5. Discharge port; 6. Leachate inlet; 7. Sealing plug; 8. Feed inlet; 9. Expansion port; 10. Valve; 11. Stirring mechanism; 12. Crushing mechanism; 1101. Protective casing; 1102. Drive motor; 1103. Coupling; 1104. Rotating shaft; 1105. Stirring support rod; 1106. Elastic block No. 1; 1107. Heating wire; 1201. Crushing fan No. 1; 1202. Crushing fan No. 2; 1203. Elastic block No. 2; 1204. Screen. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-6 An extraction device for indium from flue dust includes a housing 1, a transparent glass plate 2 fixedly installed on the front end face of the housing 1, a discharge port 5 fixedly installed on the lower end face of the housing 1, a valve 10 fixedly installed on the surface of the discharge port 5, a feed port 8 fixedly installed on the upper end face of the housing 1, an expansion port 9 fixedly installed on the upper end face of the feed port 8, a crushing mechanism 12 fixedly installed inside the feed port 8, a stirring mechanism 11 fixedly installed inside the housing 1, multiple support columns 3 fixedly installed on the lower end face of the housing 1, anti-slip blocks 4 fixedly installed on the lower end face of each of the multiple support columns 3, and a leaching liquid inlet 6 fixedly installed on the upper end face of the housing 1, with a sealing plug 7 fixedly installed on the upper end face of the leaching liquid inlet 6. In the above structure, dust is introduced into the device housing 1 through the feed inlet 8. When the dust enters the feed inlet 8 through the expansion port 9, the agglomerated dust mixed in the dust will be crushed by the crushing mechanism 12, thereby preventing the agglomerated dust from clogging the feed inlet 8 and affecting the subsequent leaching effect. After the dust is introduced, leaching liquid is introduced into the device housing 1 through the leaching liquid inlet 6. Then, the dust and leaching liquid are stirred and mixed by the stirring mechanism 11, so that indium reacts with the leaching liquid to produce an indium-containing solution. The mixture is then discharged through the discharge port 5. After subsequent solid-liquid separation, centrifugal extraction and electrolytic separation, metallic indium is generated.

[0017] In a preferred embodiment, the stirring mechanism 11 includes two protective shells 1101, each of which has a drive motor 1102 fixedly installed inside. Each of the two drive motors 1102 has a coupling 1103 fixedly installed at its output end. Each of the two couplings 1103 has a rotating shaft 1104 fixedly installed on its upper surface. Each of the two rotating shafts 1104 has a plurality of stirring rods 1105 fixedly installed on its surface. Each of the multiple stirring rods 1105 has a first elastic block 1106 fixedly installed on its outer side. Each of the two rotating shafts 1104 has a plurality of heating wires 1107 fixedly installed inside its interior. In the above structure, two drive motors 1102 drive two rotating shafts 1104 and multiple stirring rods 1105 to rotate, and the two drive motors 1102 rotate in opposite directions, so that the multiple stirring rods 1105 cross-stir the flue dust and leachate, thereby making the flue dust and leachate more thoroughly and evenly mixed. At the same time, the heating wire 1107 in the rotating shaft 1104 heats the leachate, thereby accelerating the reaction between indium and the leachate, and thus accelerating the subsequent extraction of indium.

[0018] In a preferred embodiment, the crushing mechanism 12 includes a screen 1204, a first crushing fan 1201 is fixedly installed on the lower end face of the screen 1204, a second crushing fan 1202 is fixedly installed on the upper end face of the screen 1204, and a second elastic block 1203 is fixedly installed at the end of the blades of the first crushing fan 1201 and the second crushing fan 1202. In the above structure, after the smoke and dust enter the feed inlet 8 through the expansion port 9, the agglomerated smoke and dust mixed in the smoke and dust will be exposed by the screen 1204 and accumulate on the upper end of the screen 1204. The first crushing fan 1201 and the second crushing fan 1202 rotate in opposite directions, so as to continuously crush the smoke and dust agglomerated on the upper end of the screen 1204. The crushed smoke and dust agglomerated can enter the device shell 1 through the screen 1204, thereby effectively preventing the smoke and dust agglomerated can block the feed inlet 8 and affect the indium extraction efficiency.

[0019] Working principle: Smoke and dust are introduced into the outer casing 1 of the device through the feed inlet 8. When the smoke and dust enters the feed inlet 8 through the expansion port 9, any agglomerated smoke and dust mixed in with it is exposed by the screen 1204 and accumulates on the upper part of the screen 1204. The first pulverizing fan 1201 and the second pulverizing fan 1202 rotate in opposite directions, thus continuously pulverizing the smoke and dust agglomerates on the upper part of the screen 1204. The pulverized smoke and dust agglomerates can then pass through the screen 1204 into the outer casing 1 of the device, effectively preventing the smoke and dust agglomerates from clogging the feed inlet 8 and affecting the indium extraction efficiency. After the smoke and dust is introduced, it flows into the outer casing 1 of the device through the leaching liquid inlet 6. The leachate is added, and two drive motors 1102 drive two rotating shafts 1104 and multiple stirring rods 1105 to rotate. The two drive motors 1102 rotate in opposite directions, so that the multiple stirring rods 1105 cross-stir the flue gas and leachate, making the flue gas and leachate more thoroughly and evenly mixed. At the same time, the heating wire 1107 in the rotating shaft 1104 heats the leachate, thereby accelerating the reaction between indium and the leachate, thus accelerating the subsequent extraction of indium. The mixture produced by the reaction is discharged through the discharge port 5. Then, through subsequent solid-liquid separation, centrifugal extraction and electrolytic separation, metallic indium is generated.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for the extraction of indium from fumes, comprising a device housing (1), characterised in that: A transparent glass plate (2) is fixedly installed on the front end face of the device housing (1). A discharge port (5) is fixedly installed on the lower end face of the device housing (1). A valve (10) is fixedly installed on the surface of the discharge port (5). A feed inlet (8) is fixedly installed on the upper end face of the device housing (1). An expansion port (9) is fixedly installed on the upper end face of the feed inlet (8). A crushing mechanism (12) is fixedly installed inside the feed inlet (8). A stirring mechanism (11) is fixedly installed inside the device housing (1).

2. A device for the extraction of indium from fumes according to claim 1, characterized in that: Multiple support columns (3) are fixedly installed on the lower end face of the device housing (1), and anti-slip blocks (4) are fixedly installed on the lower end face of each of the multiple support columns (3).

3. The apparatus for extracting indium from flue dust according to claim 1, wherein: The upper end face of the device housing (1) is fixedly installed with an leaching liquid inlet (6), and the upper end face of the leaching liquid inlet (6) is fixedly installed with a sealing plug (7).

4. The apparatus for extracting indium from flue dust according to claim 1, wherein: The stirring mechanism (11) includes two protective shells (1101), and a drive motor (1102) is fixedly installed inside each of the two protective shells (1101). A coupling (1103) is fixedly installed at the output end of each of the two drive motors (1102).

5. A plant for the extraction of indium from fumes according to claim 4, characterized in that: A rotating shaft (1104) is fixedly installed on the upper end face of both couplings (1103). Multiple stirring rods (1105) are fixedly installed on the surface of both rotating shafts (1104). A first elastic block (1106) is fixedly installed on the outer side of each of the multiple stirring rods (1105). Multiple heating wires (1107) are fixedly installed inside both rotating shafts (1104).

6. The apparatus for extracting indium from flue dust according to claim 1, wherein: The crushing mechanism (12) includes a screen (1204), a first crushing fan (1201) is fixedly installed on the lower end face of the screen (1204), a second crushing fan (1202) is fixedly installed on the upper end face of the screen (1204), and a second elastic block (1203) is fixedly installed at the end of the blades of the first crushing fan (1201) and the second crushing fan (1202).

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