Device for eliminating crystals in indium extraction process of chlorine salt system

Abstract

The utility model relates to the technical field of chemical production, and discloses a device for eliminating crystals in an indium extraction process of a chlorine salt system, which solves the problem that impurities are inconvenient to separate at present, and comprises a box body, a discharge pipe and a feed pipe are respectively and fixedly connected to two sides of the box body, a connecting pipe is arranged on the outer side of the discharge pipe, and the connecting pipe is connected with the feed pipe. A connecting mechanism is arranged between the connecting pipe and the discharging pipe, a multi-stage separation structure is arranged in the box body, a plurality of sewage draining outlets are formed in the box body at equal intervals, the interior of each stage of the multi-stage separation structure is divided into a plurality of small grids which are arranged in a Z shape, and the bottom of each stage of the multi-stage separation structure is inclined; according to the utility model, the multi-stage separation structure is arranged in the box body, and each stage of middle partition plate in the multi-stage separation structure is arranged in a Z shape, so that the flow speed is slowed down when liquid flows through, the clarification time is prolonged, better separation is realized, and as multi-stage series connection is adopted, and the liquid flows automatically in the device, the treatment capacity is large, and redundant energy is not consumed at the same time; and the production cost is further saved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical production technology, specifically a device for eliminating crystallization during the indium extraction process of chloride salt systems. Background Technology

[0002] In the process of recovering indium from indium-containing materials using hydrochloric acid, impurities such as lead and calcium carried by the material enter the solution along with the indium. Due to the characteristics of the hydrochloric acid leaching process, these impurities cannot enter the slag through precipitation as in sulfuric acid leaching; instead, they are carried out of the system through the raffinate. During multi-stage countercurrent extraction of the indium-containing leaching solution, the organic phase loaded in the extraction section inevitably carries a small amount of raffinate into the next process. The lead and calcium impurities in the raffinate easily form precipitates with sulfate ions in the acid washing solution. Over time, these precipitates accumulate and crystallize, adhering to the pipes, agitators, and the inner walls of the extraction tank, causing pipe blockage. Liquid in the mixing chamber cannot enter the clarification chamber, and the stirring intensity is also affected. In addition, due to the high concentration and viscosity of impurities in the organic phase of the chloride salt system during extraction, the oil-water separation process is slow, and ordinary clarification equipment cannot meet the production requirements. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a device for eliminating crystallization in the indium extraction process of chloride salt system, which effectively solves the problem of the inconvenience of separating impurities.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a device for eliminating crystallization during the indium extraction process of a chloride salt system, comprising a box body, wherein a discharge pipe and a feed pipe are fixedly connected to both sides of the box body respectively, a connecting pipe is provided on the outside of the discharge pipe, a connecting mechanism is provided between the connecting pipe and the discharge pipe, the box body is provided with a multi-stage separation structure, and multiple drain outlets are provided at equal intervals on the box body.

[0005] Preferably, in the multi-stage separation structure, each stage is divided into several small compartments arranged in a "Z" shape, with an inclined bottom, and each sewage outlet is located at the bottom of each stage.

[0006] Preferably, the connecting mechanism includes an outer cylinder fixed to the outside of the discharge pipe, the outer cylinder having an external thread on its outer side, two symmetrical positioning holes on the outer cylinder, a fixed ring fixedly sleeved on the outside of the connecting pipe, a movable ring movably installed on the outside of the fixed ring, two connecting plates symmetrically fixedly connected to the side of the movable ring near the housing, a threaded cylinder fixedly connected between the sides of the two connecting plates away from the movable ring, a turntable fixedly installed on the outside of the threaded cylinder, the threaded cylinder being threadedly sleeved on the outside of the outer cylinder through an external thread, and two positioning pins symmetrically fixedly connected to the side of the fixed ring near the housing, the two positioning pins being inserted into the two positioning holes respectively.

[0007] Preferably, the outer side of the fixed ring is provided with an annular groove, and the movable ring is rotatably connected to the fixed ring through the annular groove.

[0008] Preferably, a sealing ring is fixedly connected to the end of the discharge pipe away from the box body, and the end of the connecting pipe close to the discharge pipe is in contact with the sealing ring.

[0009] Preferably, a sleeve plate is fixedly installed on the outer side of the discharge pipe, and the end of the outer cylinder near the box body is fixedly connected to the sleeve plate. Two sliding grooves are symmetrically provided on the sleeve plate, and a sliding rod is fixedly connected in each of the two sliding grooves. A sliding plate is movably sleeved on the outer side of each of the two sliding rods. A return spring is fixedly connected on the side of each of the two sliding plates that is far apart from each other. The ends of the two return springs that are far apart from each other are fixedly connected to the inner walls of the two sliding grooves respectively, and the two return springs are respectively sleeved on the outer side of the two sliding rods. An insert block is fixedly connected on the side of each of the two sliding plates that is close to each other. Two slots are symmetrically provided on the outer side of the threaded cylinder, and two insert blocks are respectively inserted into the two slots.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. This utility model, by setting a multi-stage separation structure in the box, and the intermediate partitions in each stage of the multi-stage separation structure are arranged in a "Z" shape, the flow rate of the liquid slows down when it flows through, the clarification time is extended, and better separation is achieved. Since a multi-stage series is used and the liquid in the device is all gravity flowed, the processing capacity is large while not consuming excess energy, further saving production costs.

[0012] 2. This device has a simple and reliable structure, requiring only the cutting and welding of PP or PPH sheets. It has advantages such as low inherent investment, simple installation, and low operation and maintenance costs.

[0013] 3. The use of this device can effectively avoid production stoppages caused by blockage of the extraction tank, further extend the cleaning and maintenance cycle, reduce equipment operation and maintenance costs, and significantly reduce extractant loss due to better separation of the organic phase and the aqueous phase.

[0014] 4. This new type of device facilitates the connection between the connecting pipe and the discharge pipe through the cooperation of the fixed ring, positioning post, positioning hole, outer cylinder, external thread, threaded cylinder, connecting plate, movable ring and annular groove. The cooperation between the sliding rod, sliding plate and return spring facilitates the insertion of two inserts into two slots to limit the threaded cylinder, so that the connecting pipe and the discharge pipe are firmly connected, thus facilitating the connection of the box to external equipment. Attached Figure Description

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram of the apparatus for crystallization during the indium extraction process of the chloride salt system according to this invention;

[0018] Figure 2 This is a schematic diagram of the connection mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram showing the disassembled structure of the connecting pipe and the discharge pipe of this utility model;

[0020] Figure 4 This is a schematic diagram showing the disassembled structure of the movable ring and the fixed ring of this utility model;

[0021] Figure 5 This is a schematic diagram of the sleeve structure of this utility model.

[0022] In the diagram: 1. Box body; 2. Connecting mechanism; 201. Outer cylinder; 202. Movable ring; 203. Threaded cylinder; 204. Sleeve plate; 205. Positioning hole; 206. Sealing ring; 207. Turntable; 208. Connecting plate; 209. Fixing ring; 2010. Positioning post; 2011. Slot; 2012. External thread; 2013. Annular groove; 2014. Slide plate; 2015. Return spring; 2016. Slide rod; 2017. Slide groove; 2018. Insert block; 3. Connecting pipe; 4. Discharge pipe; 5. Drain outlet; 6. Feed pipe; 7. Multi-stage separation structure. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figure 1 The present invention relates to a device for eliminating crystallization during the indium extraction process of a chloride salt system, comprising a box body 1, with a discharge pipe 4 and a feed pipe 6 fixedly connected to both sides of the box body 1 respectively, a connecting pipe 3 provided on the outside of the discharge pipe 4, and a connecting mechanism 2 provided between the connecting pipe 3 and the discharge pipe 4, the box body 1 having a multi-stage separation structure 7 inside, and multiple drain ports 5 provided at equal intervals on the box body 1, each stage of the multi-stage separation structure 7 being divided into several small compartments arranged in a "Z" shape, with an inclined bottom, and each drain port 5 being located at the bottom of each stage;

[0025] In operation, the multi-stage separation structure 7 is set up, with the intermediate partitions in each stage arranged in a "Z" shape. This effectively removes the aqueous phase entrained in the loaded organic phase. The loaded organic phase enters through the feed pipe 6 and flows through the "Z" shape. Most of the aqueous phase sinks to the bottom due to its higher specific gravity, while the organic phase passes through the overflow port and enters the next stage of separation. After multi-stage separation, the pure organic phase enters the intermediate tank for temporary storage and is then pumped into the acid washing process. The aqueous phase flows out through the drain port 5 at the bottom of each stage. After efficient separation, the loaded organic phase no longer carries raffinate, and impurities such as lead and calcium do not enter the sulfuric acid washing process. Crystallization in the acid washing section is effectively controlled.

[0026] Specifically, by Figure 2-5 The connecting mechanism 2 includes an outer cylinder 201 fixed to the outside of the discharge pipe 4. The outer cylinder 201 has an external thread 2012 on its outer side and two symmetrical positioning holes 205 on its outer cylinder 201. A fixing ring 209 is fixedly sleeved on the outside of the connecting pipe 3. A movable ring 202 is movably installed on the outside of the fixing ring 209. Two connecting plates 208 are symmetrically fixedly connected to the side of the movable ring 202 closest to the housing 1. A threaded cylinder 203 is fixedly connected between the sides of the two connecting plates 208 away from the movable ring 202. A turntable 207 is fixedly installed on the outside of the cylinder 203. The threaded cylinder 203 is threaded onto the outside of the outer cylinder 201 via an external thread 2012. Two positioning pins 2010 are symmetrically fixedly connected to the side of the fixing ring 209 near the housing 1. The two positioning pins 2010 are respectively inserted into two positioning holes 205. An annular groove 2013 is provided on the outside of the fixing ring 209. The movable ring 202 is rotatably connected to the fixing ring 209 through the annular groove 2013. A sealing ring 20 is fixedly connected to the end of the discharge pipe 4 away from the housing 1. 6. The end of the connecting pipe 3 near the discharge pipe 4 is fitted with the sealing ring 206. A sleeve plate 204 is fixedly installed on the outside of the discharge pipe 4. The end of the outer cylinder 201 near the box body 1 is fixedly connected to the sleeve plate 204. Two sliding grooves 2017 are symmetrically provided on the sleeve plate 204. A sliding rod 2016 is fixedly connected in each of the two sliding grooves 2017. A sliding plate 2014 is movably sleeved on the outside of each of the two sliding rods 2016. A return spring 2015 is fixedly connected to the side of each of the two sliding plates 2014 that is far apart from each other. The two return springs 2015... The ends of 015 that are far apart from each other are fixedly connected to the inner walls of the two slides 2017 respectively, and the two return springs 2015 are respectively sleeved on the outside of the two slide rods 2016. The two slides 2014 are fixedly connected to the side of each other. The outer side of the threaded cylinder 203 is symmetrically provided with two slots 2011. The two slots 2018 are respectively inserted into the two slots 2011. The connecting pipe 3 is connected to the external equipment. When the discharge pipe 4 is fixed to the connecting pipe 3, the box 1 can be connected to the external equipment.

[0027] In use, first slide the two slide plates 2014 along the two slide rods 2016 respectively, causing the two insert blocks 2018 to move away from each other. At this time, both return springs 2015 are compressed. Then, bring the connecting pipe 3 close to the discharge pipe 4, so that the two positioning pins 2010 are inserted into the two positioning holes 205 respectively, and the threaded cylinder 203 is fitted onto the outside of the outer cylinder 201. Then, rotate the turntable 207 clockwise, causing the threaded cylinder 203 to rotate and move horizontally at the same time. Then, the connecting plate 208 and the movable ring 202 drive it to be fixed. The ring 209 moves until one end of the connecting pipe 3 is in contact with the sealing ring 206, completing the connection between the discharge pipe 4 and the connecting pipe 3. Then, the two sliding plates 2014 are released, allowing the two sliding plates 2014 to slide along the two sliding rods 2016 under the action of the two return springs 2015. At the same time, the two inserts 2018 move closer to each other until they are inserted into the two slots 2011 respectively, limiting the threaded cylinder 203. Finally, the discharge pipe 4 and the connecting pipe 3 are firmly connected, and the housing 1 can be connected to external equipment for use.

Claims

1. An apparatus for eliminating crystallization during indium extraction from chloride salt systems, comprising a housing (1), characterized in that: The two sides of the box (1) are respectively fixedly connected to the discharge pipe (4) and the inlet pipe (6). The outer side of the discharge pipe (4) is provided with a connecting pipe (3). A connecting mechanism (2) is provided between the connecting pipe (3) and the discharge pipe (4). The inside of the box (1) is provided with a multi-stage separation structure (7). Multiple sewage outlets (5) are provided at equal intervals on the box (1).

2. The apparatus for eliminating crystallization during indium extraction from chloride salt systems according to claim 1, characterized in that: The multi-level separation structure (7) is divided into several small compartments in each level, arranged in a "Z" shape, with an inclined bottom, and each sewage outlet (5) is set at the bottom of each level.

3. The apparatus for eliminating crystallization during indium extraction from chloride salt systems according to claim 1, characterized in that: The connecting mechanism (2) includes an outer cylinder (201) fixed to the outside of the discharge pipe (4). The outer cylinder (201) has an external thread (2012) on its outer side. Two positioning holes (205) are symmetrically provided on the outer cylinder (201). A fixing ring (209) is fixedly sleeved on the outside of the connecting pipe (3). A movable ring (202) is movably installed on the outside of the fixing ring (209). Two connecting plates (208) are symmetrically fixedly connected to the side of the movable ring (202) near the box body (1). A threaded cylinder (203) is fixedly connected between the connecting plate (208) and the side away from the movable ring (202). A turntable (207) is fixedly installed on the outside of the threaded cylinder (203). The threaded cylinder (203) is threaded onto the outside of the outer cylinder (201) through an external thread (2012). Two positioning pins (2010) are symmetrically fixedly connected to the side of the fixing ring (209) near the box (1). The two positioning pins (2010) are respectively inserted into two positioning holes (205).

4. The apparatus for eliminating crystallization during indium extraction from chloride salt systems according to claim 3, characterized in that: The outer side of the fixed ring (209) is provided with an annular groove (2013), and the movable ring (202) is rotatably connected to the fixed ring (209) through the annular groove (2013).

5. The apparatus for eliminating crystallization during indium extraction from chloride salt systems according to claim 1, characterized in that: The end of the discharge pipe (4) away from the box body (1) is fixedly connected to a sealing ring (206), and the end of the connecting pipe (3) close to the discharge pipe (4) is in contact with the sealing ring (206).

6. The apparatus for eliminating crystallization during indium extraction from chloride salt systems according to claim 1, characterized in that: A sleeve plate (204) is fixedly installed on the outside of the discharge pipe (4). The end of the outer cylinder (201) near the box body (1) is fixedly connected to the sleeve plate (204). Two sliding grooves (2017) are symmetrically provided on the sleeve plate (204). A sliding rod (2016) is fixedly connected in each of the two sliding grooves (2017). A sliding plate (2014) is movably sleeved on the outside of each of the two sliding rods (2016). A return spring (2014) is fixedly connected to the side of each sliding plate (2014) that is far away from each other. 015), the ends of the two return springs (2015) that are far apart from each other are fixedly connected to the inner walls of the two slides (2017), and the two return springs (2015) are respectively sleeved on the outer side of the two slide rods (2016). The sides of the two slides (2014) that are close to each other are fixedly connected with inserts (2018). The outer side of the threaded cylinder (203) is symmetrically provided with two slots (2011), and the two inserts (2018) are respectively inserted into the two slots (2011).

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