Recovery device for organic phase and crystal in indium raffinate of chlorine salt system

Abstract

The utility model discloses a device for recovering organic phases and crystals in indium raffinate of a chlorine salt system, which solves the problem that a large number of crystals are quickly generated on the wall and the bottom of a pool to be accumulated and blocked when the indium raffinate is recovered and processed, and comprises a processing cylinder, a bottom separating component is mounted at the bottom end of the processing cylinder, and a bottom separating component is mounted at the bottom end of the processing cylinder. A liquid inlet pipe is arranged in the middle of the top end of the treatment barrel, an overflow separation assembly is mounted on the outer side of the treatment barrel, a rotary stirring assembly is arranged at the top end of the treatment barrel, the bottom separation assembly comprises a bottom barrel mounted at the bottom end of the treatment barrel, a drainage pipe is mounted on the inclined surface of the bottom end of the bottom barrel, a ball valve is mounted on the drainage pipe, and a crystal discharging pipe is mounted at the bottom end of the bottom barrel; a gate valve is mounted on the crystal discharging pipe; in the working process, the conical bottom cylinder is arranged at the bottom of the treatment cylinder, so that crystals can be accumulated in the bottom cylinder and discharged from the crystal discharging pipe, and accumulation and blockage caused by crystallization of the crystals on the tank wall are prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of recycling devices, specifically a recycling device for organic phase and crystals in indium extraction residue of chloride salt system. Background Technology

[0002] Indium extraction residue inevitably contains a certain amount of organic phase containing the extractant. Recovering this residual extractant is crucial for reducing indium recovery production costs and protecting the environment. Existing conventional devices and methods for recovering the organic phase from indium extraction residue mainly include oil separators, air flotation, sand filters, and ultrasonic oil removal devices. Chloride systems produce indium extraction residue containing some organic phase and a large amount of inorganic ions such as chloride, lead, and zinc, which are prone to thermal runaway and crystallization. However, these methods have the following drawbacks during recovery:

[0003] During the recovery of the organic phase from indium extraction residue using conventional equipment, a large amount of crystals rapidly accumulate and clog the tank walls and bottom, preventing the recovery process from proceeding normally. There is an urgent need for a device that combines recovery and crystal removal functions to recover the organic phase from indium extraction residue. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a device for recovering organic phase and crystals in indium extraction residue of chloride system, which effectively solves the problem that a large amount of crystals will be rapidly generated and clogged on the pool wall and bottom during the recovery and treatment of indium extraction residue.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for recovering organic phase and crystals in indium extraction residue of chloride salt system, comprising a processing cylinder, a bottom separation component installed at the bottom end of the processing cylinder, an inlet pipe provided at the middle of the top end of the processing cylinder, an overflow separation component installed on the outside of the processing cylinder, and a rotating stirring component provided at the top end of the processing cylinder.

[0006] The bottom separation assembly includes a bottom cylinder installed at the bottom of the processing cylinder, a drain pipe installed on the inclined surface at the bottom end of the bottom cylinder, a ball valve installed on the drain pipe, a crystal discharge pipe installed at the bottom end of the bottom cylinder, and a gate valve installed on the crystal discharge pipe.

[0007] Preferably, the rotating stirring assembly includes a mounting frame disposed above the processing cylinder, a drive shaft is rotatably mounted on the mounting frame, the bottom end of the drive shaft extends into the interior of the processing cylinder, a scraper arm is mounted at an equal angle on the bottom of the outer wall of the drive shaft, the top end of the drive shaft is fixedly connected to the output shaft of a rotating motor, and the rotating motor is fixedly mounted on the top end of the mounting frame.

[0008] Preferably, scraper blades are installed at equal intervals at the bottom end of the scraper arm, and the scraper blades are inclined at a 45-degree angle to the scraper arm.

[0009] Preferably, the overflow separation assembly includes an overflow trough installed on the outside of the processing cylinder, a baffle plate installed inside the overflow trough, a connecting groove opened on the outer wall of the processing cylinder, the overflow trough and the processing cylinder being connected through the connecting groove, a baffle plate being provided on the side of the connecting groove near the inside of the processing cylinder, the baffle plate closing the connecting groove, and a through hole being opened at the bottom end of the overflow trough.

[0010] Preferably, a hanging plate is provided above the baffle, and hanging rods are symmetrically installed between the hanging plate and the baffle. A fixed plate is provided above the hanging plate, and guide rods are symmetrically installed at the bottom end of the fixed plate. The guide rods are fixedly connected to the top wall of the processing cylinder, and the hanging plate is slidably connected to the guide rods.

[0011] Preferably, a screw is rotatably installed between the processing cylinder and the fixed plate, the screw is threadedly connected to the hanging plate, the top end of the screw is fixedly connected to the output shaft of the drive motor, and the drive motor is fixedly installed on the top end of the fixed plate.

[0012] Preferably, support frames are symmetrically installed on both sides of the overflow channel, and the mounting frame is fixedly installed on the support frames.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] During operation, the bottom of the processing tank is equipped with a conical bottom cylinder, which allows crystals to accumulate inside the bottom cylinder and be discharged from the crystal discharge pipe. This prevents crystals from accumulating and clogging on the tank wall. At the same time, the indium extraction residue contains lead chloride, calcium sulfate and other crystals that are recovered by physical methods and recycled in the clarification tank, which reduces the pressure of the next process for impurity removal and keeps the impurity removal cost low.

[0015] In operation, the organic phase is positioned above the water after gravity settling, while the crystals are positioned below the water, achieving a stratification effect. The organic phase can overflow from the connecting tank to the overflow tank for easy separation. At the same time, the overflow tank is equipped with a baffle plate to form an annular meandering chute, which extends the liquid flow path and facilitates the enrichment of the organic phase in the annular meandering chute.

[0016] During operation, a baffle is installed on one side of the connecting channel. When the baffle moves downward, it can move relative to the connecting channel, opening part of the connecting channel. During overflow separation, the length of the connecting channel opening is adjusted by adjusting the downward movement distance of the baffle, so that the opening length of the connecting channel is adapted to the depth of the organic phase, allowing the organic phase to completely enter the overflow channel, which is convenient to use.

[0017] During operation, four scraper arms arranged in a cross shape are installed at the bottom of the transmission shaft. At the bottom of the scraper arms, scraper blades are installed at a 45-degree angle to the scraper arms. When the transmission shaft rotates slowly, the crystallization separation speed is increased. At the same time, the scraper blades slowly scrape the underflow at the bottom of the tank to the opening at the bottom of the tank, which facilitates separation. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the structure of a recovery device for organic phase and crystals in the residual liquid of indium extraction in a chloride salt system according to the present invention.

[0021] Figure 2 This is a schematic diagram of the processing cylinder structure of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the overflow separation structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the rotating stirring assembly of this utility model.

[0025] In the diagram: 1. Processing cylinder; 2. Bottom separation assembly; 201. Bottom cylinder; 202. Drain pipe; 203. Ball valve; 204. Crystal discharge tube; 205. Gate valve; 3. Liquid inlet pipe; 4. Support frame; 5. Rotary stirring assembly; 501. Mounting frame; 502. Drive shaft; 503. Scraper arm; 504. Scraper; 505. Rotary motor; 6. Overflow separation assembly; 601. Overflow trough; 602. Baffle plate; 603. Connecting trough; 604. Baffle; 605. Hanging plate; 606. Hanging rod; 607. Fixing plate; 608. Guide rod; 609. Screw; 610. Drive motor. Detailed Implementation

[0026] 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.

[0027] Depend on Figure 1-5The present invention relates to a device for recovering organic phase and crystals in indium extraction residue of chloride salt system, comprising a processing cylinder 1, a bottom separation component 2 installed at the bottom end of the processing cylinder 1, an inlet pipe 3 provided at the middle of the top end of the processing cylinder 1, an overflow separation component 6 installed on the outside of the processing cylinder 1, and a rotating stirring component 5 provided at the top end of the processing cylinder 1.

[0028] The bottom separation component 2 includes a bottom cylinder 201 installed at the bottom of the processing cylinder 1. A drain pipe 202 is installed on the inclined surface at the bottom end of the bottom cylinder 201, and a ball valve 203 is installed on the drain pipe 202. A crystal discharge pipe 204 is installed at the bottom end of the bottom cylinder 201, and a gate valve 205 is installed on the crystal discharge pipe 204. The bottom of the processing cylinder 1 is provided with a conical bottom cylinder 201, which allows crystals to accumulate inside the bottom cylinder 201 and be discharged from the crystal discharge pipe 204, preventing crystals from accumulating and clogging on the tank wall. At the same time, the indium extraction residue contains lead chloride, calcium sulfate and other crystallization physical methods for recovery, which are recovered in the clarification tank, reducing the impurity removal pressure of the next process and reducing the impurity removal cost.

[0029] The rotating stirring assembly 5 includes a mounting frame 501 disposed above the processing cylinder 1. A drive shaft 502 is rotatably mounted on the mounting frame 501. The bottom end of the drive shaft 502 extends into the interior of the processing cylinder 1. Scraper arms 503 are mounted at equal angles on the bottom of the outer wall of the drive shaft 502. The top end of the drive shaft 502 is fixedly connected to the output shaft of a rotating motor 505. The rotating motor 505 is fixedly mounted on the top end of the mounting frame 501. Scraper blades 504 are mounted at equal intervals on the bottom end of the scraper arms 503. The scraper blades 504 are inclined at a 45-degree angle to the scraper arms 503. Four scraper arms 503 arranged in a cross shape are mounted on the bottom end of the drive shaft 502. Scraper blades 504 are set at a 45-degree angle to the scraper arms 503 on the bottom end of the scraper arms 503. When the drive shaft 502 rotates slowly, the crystallization separation speed is increased. At the same time, the scraper blades 504 slowly scrape the underflow at the bottom of the tank to the opening at the bottom of the tank for easy separation.

[0030] The overflow separation assembly 6 includes an overflow trough 601 installed on the outside of the processing cylinder 1. A baffle plate 602 is installed inside the overflow trough 601. A connecting groove 603 is formed on the outer wall of the processing cylinder 1, connecting the overflow trough 601 and the processing cylinder 1. A baffle 604 is provided on the side of the connecting groove 603 closest to the inside of the processing cylinder 1, closing the connecting groove 603. A through hole is formed at the bottom of the overflow trough 601, and a hanging plate 605 is provided above the baffle 604. A suspension rod 606 is symmetrically installed between plate 605 and baffle 604. A fixing plate 607 is provided above the suspension plate 605. Guide rods 608 are symmetrically installed at the bottom end of the fixing plate 607. The guide rods 608 are fixedly connected to the top wall of the processing cylinder 1. The suspension plate 605 is slidably connected to the guide rods 608. A screw 609 is rotatably installed between the processing cylinder 1 and the fixing plate 607. The screw 609 is threadedly connected to the suspension plate 605. The top end of the screw 609 is fixedly connected to the output shaft of the drive motor 610. Next, the drive motor 610 is fixedly installed on the top of the fixed plate 607. After gravity settling, the organic phase is above the water and the crystals are below the water, achieving a stratification effect. The organic phase can overflow from the connecting channel 603 into the overflow channel 601 for easy separation. At the same time, the overflow channel 601 is equipped with a flow-blocking plate 602 to form an annular meandering chute, which extends the liquid flow path and facilitates the enrichment of the organic phase in the annular meandering chute. A baffle 604 is provided on one side of the connecting channel 603. When the baffle 604 moves downward, it can move relative to the connecting channel 603, opening part of the connecting channel 603. During overflow separation, the length of the opening of the connecting channel 603 is adjusted by adjusting the downward movement distance of the baffle 604, so that the opening length of the connecting channel 603 is adapted to the depth of the organic phase, allowing the organic phase to completely enter the overflow channel 601 for easy use. Support frames 4 are symmetrically installed on both sides of the overflow channel 601, and the mounting frame 501 is fixedly installed on the support frame 4.

[0031] Working principle: During operation, the first processing cylinder 1 is cylindrical and the bottom cylinder 201 is conical. The indium extraction residue slurry is added to the processing cylinder 1 and the bottom cylinder 201 through the liquid inlet pipe 3. The indium extraction residue is a multiphase system containing an organic phase, an aqueous phase, and a crystalline solid phase. The density of each phase is significantly different. Therefore, gravity sedimentation is used to separate the crystalline solid phase, water washing, and organic phase in sequence. The liquid inlet pipe 3 is inserted into the suspension zone. When in use, the rotating motor 505 is turned on, causing the transmission shaft 502 to rotate slowly. The bottom end of the transmission shaft 502 is equipped with four scraper arms 503 arranged in a cross shape. The bottom end of the scraper arms 503 is equipped with scraper blades 504 at a 45-degree angle to the scraper arms 503. When the transmission shaft 502 rotates, the scraper blades 504 slowly scrape the underflow at the bottom of the tank to the opening at the bottom of the tank.

[0032] After static sedimentation and separation, the clear liquid and organic phase separated from the crystallization are discharged from the connecting channel 603 on one side of the treatment cylinder 1 into the overflow channel 601. Since the overflow channel 601 is equipped with a flow baffle 602, the flow baffle 602 forms an annular meandering chute inside the overflow channel 601, thereby extending the liquid flow path. Due to the density difference and the low solubility of the organic phase in water, the organic phase is enriched in the annular meandering chute. The clear liquid is discharged from the channel opened at the bottom of the treatment cylinder 1 during the flow process. The organic phase enriched in the overflow channel 601 is cleaned and reused regularly. During the crystallization process, some crystals are adsorbed on the inner walls of the treatment cylinder 1 and the bottom cylinder 201. Affected by the shear force, turbulence and rotation force generated by the stirring in the tank, the crystals detach from the tank wall and sink freely to the bottom of the tank. After the treatment is completed, the ball valve 203 is opened to discharge part of the clear liquid in the tank from the drain pipe 202, and the gate valve 205 is opened to discharge the crystals from the crystal discharge pipe 204.

[0033] When the organic phase overflows, the drive motor 610 is turned on, causing the screw 609 to rotate. Since the screw 609 is threadedly connected to the hanging plate 605, it drives the baffle 604 to move downward, causing the connecting groove 603 to move relative to the baffle 604. During the movement, part of the connecting groove 603 opens. The opening height of the connecting groove 603 corresponds to the depth of the organic phase that needs to overflow, thereby facilitating the separation of the organic phase and allowing the organic phase to completely enter the overflow groove 601, improving the separation effect.

Claims

1. A device for recovering organic phase and crystals from indium extraction residue in a chloride salt system, comprising a processing cylinder (1), characterized in that: The bottom of the processing cylinder (1) is equipped with a bottom separation component (2), the top of the processing cylinder (1) is provided with an inlet pipe (3), the outside of the processing cylinder (1) is equipped with an overflow separation component (6), and the top of the processing cylinder (1) is provided with a rotating stirring component (5). The bottom separation assembly (2) includes a bottom cylinder (201) installed at the bottom end of the processing cylinder (1), a drain pipe (202) installed on the bottom inclined surface of the bottom cylinder (201), a ball valve (203) installed on the drain pipe (202), a crystal discharge pipe (204) installed at the bottom end of the bottom cylinder (201), and a gate valve (205) installed on the crystal discharge pipe (204).

2. The device for recovering organic phase and crystals from indium extraction residue in a chloride system according to claim 1, characterized in that: The rotating stirring assembly (5) includes a mounting bracket (501) disposed above the processing cylinder (1). A transmission shaft (502) is rotatably mounted on the mounting bracket (501). The bottom end of the transmission shaft (502) extends into the interior of the processing cylinder (1). A scraper arm (503) is installed at an equal angle on the bottom of the outer wall of the transmission shaft (502). The top end of the transmission shaft (502) is fixedly connected to the output shaft of a rotating motor (505). The rotating motor (505) is fixedly mounted on the top end of the mounting bracket (501).

3. The device for recovering organic phase and crystals from indium extraction residue in a chloride system according to claim 2, characterized in that: Scraper blades (504) are equidistantly installed at the bottom end of the scraper arm (503), and the scraper blades (504) are inclined at a 45-degree angle to the scraper arm (503).

4. The device for recovering organic phase and crystals from indium extraction residue in a chloride system according to claim 1, characterized in that: The overflow separation assembly (6) includes an overflow trough (601) installed on the outside of the processing cylinder (1). A baffle plate (602) is installed inside the overflow trough (601). A connecting groove (603) is provided on the outer wall of the processing cylinder (1). The overflow trough (601) is connected to the processing cylinder (1) through the connecting groove (603). A baffle plate (604) is provided on the side of the connecting groove (603) near the inside of the processing cylinder (1). The baffle plate (604) closes the connecting groove (603). A through hole is provided at the bottom end of the overflow trough (601).

5. The device for recovering organic phase and crystals from indium extraction residue in a chloride system according to claim 4, characterized in that: A hanging plate (605) is provided above the baffle (604). A hanging rod (606) is symmetrically installed between the hanging plate (605) and the baffle (604). A fixing plate (607) is provided above the hanging plate (605). A guide rod (608) is symmetrically installed at the bottom end of the fixing plate (607). The guide rod (608) is fixedly connected to the top wall of the processing cylinder (1). The hanging plate (605) and the guide rod (608) are slidably connected.

6. The device for recovering organic phase and crystals from indium extraction residue in a chloride system according to claim 5, characterized in that: A screw (609) is rotatably installed between the processing cylinder (1) and the fixing plate (607). The screw (609) is threadedly connected to the hanging plate (605). The top end of the screw (609) is fixedly connected to the output shaft of the drive motor (610). The drive motor (610) is fixedly installed on the top end of the fixing plate (607).

7. The device for recovering organic phase and crystals from indium extraction residue in a chloride system according to claim 4, characterized in that: The overflow trough (601) is symmetrically equipped with support frames (4) on both sides, and the mounting frame (501) is fixedly installed on the support frame (4).

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