Mother liquor desorption and adsorption device and use method thereof

Abstract

The invention discloses a mother liquor desorption and adsorption device in the technical field of metal gallium extraction devices, the mother liquor desorption and adsorption device comprises an adsorption tower and a power supply, the adsorption tower is provided with a mother liquor adding pipe, a mother liquor outlet pipe and a feeding port, a double-shaft motor is fixedly arranged at the top of the adsorption tower, and rope winding wheels are installed at the movable ends of the two sides of the double-shaft motor respectively; the adsorption tower is symmetrically and vertically connected with sliding seats in a sliding mode, the adsorption tower is fixedly provided with air cylinders for driving the corresponding sliding seats to slide, the sliding seats are rotationally connected with overturning plates extending into the bottom of the adsorption tower, ropes are installed between the rope winding wheels and the overturning plates, the overturning plates are fixedly provided with a plurality of heating rods, and the heating rods are connected with the air cylinders. The lengths of the plurality of heating rods are gradually increased along the direction towards the bottom of the adsorption tower. The selective adsorption capacity of the chelating resin particles to gallium can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal gallium extraction devices, and in particular to a mother liquor analysis and adsorption device and a use method thereof. Background Art

[0002] Gallium is a byproduct of the industrial processing of sphalerite, pyrite, bauxite, and germanium. Gallium is a rare element and is mainly used in the semiconductor industry. Gallium is usually extracted from Bayer mother liquor. There are many methods for recovering gallium from Bayer mother liquor, such as extraction, amalgam, electrolysis, and chemical enrichment. However, the extraction method is costly, requires a large amount of extractant, aluminum hydroxide, and alkali, and brings organic matter into the production process of alumina; the amalgam method has the disadvantages of large amounts of mercury and mercury pollution; the electrolysis method has the disadvantage of serious pollution; there are many chemical enrichment methods, but their operation is complicated or the gallium-aluminum separation effect is poor, and the recovery rate is not high.

[0003] Referring to CN114920875B-a method for preparing a chelate resin for adsorbing gallium, which was previously applied by the applicant, the gallium element in the mother liquor is adsorbed and purified by the chelate resin. During operation, the chelate resin particles are put into the adsorption tower to adsorb the gallium in the mother liquor. However, since the gallium content in the adsorption mother liquor is 150-180 mg / L, the concentration is low, and the resin needs to pass a large amount of mother liquor to be saturated; and the viscosity of the adsorption mother liquor is relatively large (the viscosity is 3-4 centimeters), the resistance of the mother liquor passing through the resin layer is relatively large, the flow rate is relatively low, and the resin is not easy to be saturated; at the same time, the floating matter (solid small particles of aluminum hydroxide) in the mother liquor is high, and a large amount of floating matter is adsorbed between the chelate resin particles, and the chelate resin particles form a blockage to affect the passage of the mother liquor. In addition, the applicant has developed and found that when there is a certain temperature difference between the chelate resin and the mother liquor, it can affect the adsorption capacity and selectivity of the floating matter on the resin, thereby achieving a better separation effect of the floating matter, so as to solve the problem of the prior art that the floating matter blocks the passage of the mother liquor, and the certain temperature difference can also improve the gallium adsorption efficiency. Summary of the invention

[0004] The present invention aims to provide a mother liquor analysis and adsorption device and a method of using the same, so as to solve the problem in the prior art that floating matter blocks the mother liquor from passing through a chelating resin particle layer.

[0005] In order to solve the above problems, the present invention provides the following technical solutions:

[0006] A mother liquor analysis and adsorption device comprises an adsorption tower and a power supply, the adsorption tower is provided with a mother liquor adding pipe, a mother liquor outlet pipe and a feeding port, a double-axis motor is fixedly provided on the top of the adsorption tower, and rope winding wheels are respectively installed on the movable ends on both sides of the double-axis motor; the adsorption tower is symmetrically and vertically slidably connected with a sliding seat, the adsorption tower is fixedly provided with a cylinder that drives the corresponding sliding seat to slide, the sliding seat is rotatably connected with a flip plate extending into the bottom of the adsorption tower, a rope is installed between the rope winding wheel and the flip plate, the flip plate is fixedly provided with a plurality of heating rods, the lengths of the plurality of heating rods gradually increase in the direction toward the bottom of the adsorption tower, the sliding seat is fixedly provided with a first carbon sheet electrode, the adsorption tower is provided with a second carbon sheet electrode above the first carbon sheet electrode, and after the first carbon sheet electrode and the second carbon sheet electrode come into contact, a closed electrical circuit is formed with the power supply and the plurality of heating rods.

[0007] Working principle and beneficial effects of the present invention:

[0008] The flip plates on both sides are vertically directed toward the bottom of the adsorption tower before use, and the ropes connected to the flip plates have sufficient length for flipping and sliding downward. The flip plates are separated from the bottom of the adsorption tower, and the mother liquor is added into the adsorption tower through the mother liquor adding pipe, and the chelating resin particles are put into the adsorption tower through the feeding port, and the flip plates are separated from the liquid level of the mother liquor, thereby providing enough space for the mother liquor and the chelating resin particles to react.

[0009] After a period of reaction adsorption, a large amount of suspended matter adsorbs between the chelated resin particles, causing blockage between the chelated resin particles, a large amount of chelated resin particles adhere to each other and form a group, at this time, the sliding seat is driven by the cylinder to slide downward, and the sliding seat drives the flip plate to move downward and is inserted into the bottom of the adsorption tower, in this insertion process, a plurality of heating rods vertically divide the chelated resin particle layer for the first time, and the chelated resin particle layer that adheres together is divided in the vertical direction (i.e., the first time is deagglomerated), and then the rope pulleys on both sides are driven by the double-axis motor to rotate, and the flip plates on both sides are pulled up by the rope, and a plurality of heating rods are inserted into the grouped chelated resin particles and tear in the inclined direction for division, and the heating rod is longer near the bottom of the adsorption tower, because the suspended matter sinks to the bottom, causing the suspended matter between the chelated resin particles at the bottom of the adsorption tower to be more, causing the adsorption between the chelated resin particles at the bottom of the adsorption tower to be more serious, and the longer heating rod provides a larger swing space, and the chelated resin particle layer that is more seriously adsorbed is deagglomerated. Then the flip plate scoops up the chelate resin particles, which are distributed between multiple heating rods. The cylinder drives the sliding seat to slide upward, and cooperates with the dual-axis motor to roll up the rope, so that the flip plate, the sliding seat and the chelate resin particles on the flip plate are moved upward together, and the chelate resin particles are separated from the liquid level of the mother liquor.

[0010] The sliding seat moves upward, and the first carbon sheet electrode contacts the second carbon sheet electrode when passing through the second carbon sheet electrode, and the double-axis motor and the cylinder stop working. After the first carbon sheet electrode and the second carbon sheet electrode contact, a closed electrical circuit is formed between the power supply and the multiple heating rods. Carbon is a good conductor. The current of the power supply passes through the first carbon sheet electrode and the second carbon sheet to supply power to the multiple heating rods. The multiple heating rods heat the chelating resin particles. Then the double-axis motor drives the rope wheel to rotate in the opposite direction, and the flip plate rotates downward to tilt toward the bottom of the adsorption tower. The heated chelating resin particles are poured into the mother liquor, and the chelating resin particles have Due to the selective adsorption characteristics, the chelating resin particles have a strong adsorption capacity for gallium. Heating causes the chelating resin particles to expand or soften, thereby changing the internal pore structure and surface area, so that the adsorption force between the chelating resin particles and the suspended matter is weakened and detached. In addition, during the pouring process of the chelating resin particles, the chelating resin particle mother liquor collides to further wash these adsorbed suspended matter, thereby removing the suspended matter adsorbed on the surface of the chelating resin particles, thereby providing a larger space between the chelating resin particles for the mother liquor to pass through, and increasing the contact area between the mother liquor and the chelating resin particles.

[0011] In addition, since only the chelating resin particles are heated without heating the mother liquor, after the heated chelating resin particles are poured into the mother liquor, there is a temperature difference between the mother liquor and the chelating resin particles. This temperature difference helps the chelating resin particles to better adsorb the target substance (gallium) in the mother liquor and enhance selectivity. It can also accelerate the reaction rate between the chelating resin particles and the metal ions (gallium), improve the processing efficiency, and reduce thermal stress. The mother liquor temperature is low while the chelating resin particles temperature is high. There is a certain temperature difference between the two, which can reduce the thermal stress of the chelating resin particles caused by temperature changes, thereby extending the service life of the chelating resin particles.

[0012] Optimally, a plurality of the heating rods are arranged in a serpentine shape on the flip plate, which has a higher heating efficiency and is conducive to deagglomerating and splitting the adsorbed chelating resin particle clusters.

[0013] Optimally, the sliding seat is provided with a groove, and the first carbon sheet is installed in the groove. The first carbon sheet is hidden by the groove.

[0014] Optimally, the width of the flip plate is equal to the width of the adsorption tower. This optimization scheme can flip up more chelating resin particles.

[0015] A method for using a mother liquid analysis adsorption device comprises the following steps:

[0016] S1, the flip plate is vertically directed toward the bottom of the adsorption tower, the mother liquor is added into the adsorption tower through the mother liquor adding pipe, the chelating resin particles are put into the adsorption tower through the feed port, and the flip plate is separated from the liquid level of the mother liquor;

[0017] S2, after the mother liquor and the chelating resin particles react for a period of time, the flip plate is inserted into the mother liquor, and the dual-axis motor pulls up the flip plates on both sides through ropes, and the flip plate scoops up the chelating resin particles;

[0018] S3, the cylinder drives the sliding seat and the flip plate to slide upward, the double-axis motor tightens the loosened rope, and the first carbon sheet electrode and the second carbon sheet electrode contact each other to supply power to the multiple heating rods;

[0019] S4, a plurality of heating rods heat the chelating resin particles, the flip plate is flipped toward the bottom of the adsorption tower, and the heated chelating resin particles are poured into the mother liquor.

[0020] Optimally, the flip plate is evenly distributed with a plurality of leakage holes.

[0021] Optimally, in S3, before the first carbon sheet electrode contacts the second carbon sheet electrode, the flip plate remains suspended for a period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an internal structure diagram of a mother liquid analysis and adsorption device of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure when the middle flip plate extends into the mother liquid;

[0024] Figure 3 for Figure 2 The schematic diagram of the structure when the middle flip plate flips over;

[0025] Figure 4 for Figure 3 The schematic diagram of the structure after the middle flip plate is flipped;

[0026] Figure 5 It is a schematic diagram of the structure of chelating resin particles when heated;

[0027] Figure 6 It is a horizontal top view of the adsorption tower;

[0028] Figure 7 It is a schematic diagram of circuit connection relationship. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The figure marks in the drawings of the specification include: chelating resin particles 1, flip plate 2, heating rod 3, rope 4, dual-axis motor 5, cylinder 6, second carbon sheet pole 7, sliding seat 8, first carbon sheet pole 9, adsorption tower 10.

[0031] In the following statements, directional words such as "left", "right", "up", and "down" are all based on the directions shown in the diagram. In practice, if the corresponding structures are changed in the same direction based on the directions while keeping the relative positions unchanged, it will not affect the implementation of the plan.

[0032] Embodiment: A mother liquid analysis adsorption device, such as Figure 1 and Figure 6 As shown, it includes an adsorption tower 10 and a power supply. The adsorption tower 10 is provided with a mother liquid adding pipe, a mother liquid outlet pipe and a feeding port (not shown in the figure). A double-axis motor 5 is fixedly provided on the top of the adsorption tower 10, and rope winding wheels are respectively installed on the movable ends on both sides of the double-axis motor 5; the adsorption tower 10 is symmetrically and vertically slidably connected with a sliding seat 8, the adsorption tower 10 is fixedly provided with a cylinder 6 for driving the corresponding sliding seat 8 to slide, the sliding seat 8 is rotatably connected (or hinged) with a flip plate 2 extending into the bottom of the adsorption tower 10, a rope 4 is fixedly installed between the rope winding wheel and the flip plate 2, each flip plate 2 is fixedly provided with 20 heating rods 3, and the lengths of the 20 heating rods 3 gradually increase in the direction toward the bottom of the adsorption tower 10, the sliding seat 8 is fixedly provided with a first carbon sheet electrode 9, and the adsorption tower 10 is provided with a second carbon sheet electrode 7 above the first carbon sheet electrode 9. Figure 7 As shown, after the first carbon sheet electrode 9 and the second carbon sheet electrode 7 are in contact, a closed electrical circuit is formed between the power supply and the corresponding 20 heating rods 3 .

[0033] like Figure 1 As shown, the turning plate 2 on both sides of the front is used vertically towards the bottom of the adsorption tower 10, and the rope 4 connected on the turning plate 2 has enough length to turn over and slide downwards. And the turning plate 2 is separated from the bottom of the adsorption tower 10, the mother liquor is added in the adsorption tower 10 by the mother liquor liquid adding pipe, the chelated resin granules 1 is dropped into the adsorption tower 10 by the feed port, and the turning plate 2 is separated from the liquid level of the mother liquor, thereby providing enough space for the mother liquor and the chelated resin granules 1 to react.

[0034] After a period of reaction and adsorption, a large amount of suspended matter is adsorbed between the chelating resin particles 1, causing blockage between the chelating resin particles 1, and a large amount of chelating resin particles 1 adhere to each other to form a mass, such as Figure 2 As shown, the sliding seat 8 is driven downward by the cylinder 6 to slide, and the sliding seat 8 drives the flip plate 2 to move downward and insert into the bottom of the adsorption tower 10. During this insertion process, 40 heating rods 3 vertically divide the first layer of chelated resin particles, and the chelated resin particles that adhere together are divided in the vertical direction (i.e., deagglomerated for the first time). Figure 3As shown, then the double-axis motor 5 drives the rope wheels on both sides to rotate, and the turnover plates 2 on both sides are pulled up by the ropes 4, and 40 heating rods 3 are inserted into the grouped resin particles 1 to tear in the inclined direction for segmentation, and the heating rods 3 are longer near the bottom of the adsorption tower 10, because the suspended matter sinks to the bottom, causing the suspended matter between the resin particles 1 at the bottom of the adsorption tower 10 to be more, causing the adsorption between the resin particles 1 at the bottom of the adsorption tower 10 to be more serious, and the longer heating rods 3 provide larger swing space, and 1 layer of the resin particles with more serious adsorption is degrouped.

[0035] like Figure 4 As shown, the flip plate 2 then scoops up the resin particles 1, the resin particles 1 are stored in the space formed between the flip plate 2, the sliding seat 8 and the inner wall of the adsorption tower 10, the resin particles 1 are distributed between 20 heating rods 3, the cylinder 6 drives the sliding seat 8 to slide upward, cooperates with the dual-axis motor 5 to roll up the rope 4, the flip plate 2, the sliding seat 8 and the resin particles 1 on the flip plate 2 are moved upward together, and the resin particles 1 are separated from the liquid level of the mother liquor.

[0036] like Figure 5 As shown, the sliding seat 8 moves upward, and the first carbon sheet electrode 9 contacts the second carbon sheet electrode 7 when passing through the second carbon sheet electrode 7, the dual-axis motor 5 and the cylinder 6 stop working, and the first carbon sheet electrode 9 and the second carbon sheet electrode 7 form a closed electrical circuit with the power supply and the corresponding 20 heating rods 3 after contacting. Carbon is a good conductor, and the current of the power supply passes through the first carbon sheet electrode 9 and the second carbon sheet to supply power to the 40 heating rods 3, and the 40 heating rods 3 heat the chelating resin particles 1, and then the dual-axis motor 5 drives the rope wheel to rotate in the opposite direction, and the flip plate 2 rotates downward to tilt toward the bottom of the adsorption tower 10, and the heated chelating resin particles 1 are poured into the mother liquor, and the power is turned off. After the heating rods 3 cool down, the flip plate 2 returns to Figure 1 Status shown.

[0037] The chelating resin particles 1 have the characteristic of selective adsorption, so the chelating resin particles 1 have a strong adsorption capacity for gallium. Heating causes the chelating resin particles 1 to expand or soften, thereby changing the internal pore structure and surface area, so that the adsorption force between the chelating resin particles 1 and the suspended matter is weakened and separated. In addition, during the pouring process of the chelating resin particles 1, the mother liquor of the chelating resin particles 1 collides to further wash these adsorbed suspended matter, thereby removing the suspended matter adsorbed on the surface of the chelating resin particles 1, thereby providing a larger space between the chelating resin particles 1 for the mother liquor to pass through, and increasing the contact area between the mother liquor and the chelating resin particles 1.

[0038] In addition, since only the chelating resin particles 1 are heated without heating the mother liquor, after the heated chelating resin particles 1 are poured into the mother liquor, there is a temperature difference between the mother liquor and the chelating resin particles 1. This temperature difference helps the chelating resin particles 1 to better adsorb the target substance (gallium) in the mother liquor and enhance selectivity. It can also accelerate the reaction rate between the chelating resin particles 1 and the metal ions (gallium), improve the processing efficiency, and reduce thermal stress. The temperature of the mother liquor is relatively low while the temperature of the chelating resin particles 1 is relatively high. There is a certain temperature difference between the two, which can reduce the thermal stress of the chelating resin particles 1 caused by temperature changes, thereby extending the service life of the chelating resin particles 1.

[0039] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

Claims

1. A mother liquor analysis adsorption device, comprising an adsorption tower and a power supply, wherein the adsorption tower is provided with a mother liquor feeding pipe, a mother liquor outlet pipe and a feeding port, and is characterized in that: A double-axis motor is fixedly provided on the top of the adsorption tower, and rope winding wheels are respectively installed on the movable ends on both sides of the double-axis motor; the adsorption tower is symmetrically and vertically slidably connected with a sliding seat, and a cylinder is fixedly provided on the adsorption tower to drive the corresponding sliding seat to slide, and the sliding seat is rotatably connected with a flip plate extending into the bottom of the adsorption tower, and a rope is installed between the rope winding wheel and the flip plate, and the flip plate is fixedly provided with a plurality of heating rods, and the lengths of the plurality of heating rods gradually increase in the direction toward the bottom of the adsorption tower, and the sliding seat is fixedly provided with a first carbon sheet electrode, and the adsorption tower is provided with a second carbon sheet electrode above the first carbon sheet electrode, and after the first carbon sheet electrode and the second carbon sheet electrode come into contact, a closed electrical circuit is formed between the power supply and the plurality of heating rods.

2. The mother liquor desorption adsorption device according to claim 1, characterized in that: The plurality of heating rods are distributed in a serpentine manner on the flip plate.

3. The mother liquor desorption adsorption device according to claim 2, characterized in that: The sliding seat is provided with a groove, and the first carbon sheet is installed in the groove.

4. The mother liquor desorption adsorption device according to claim 3, characterized in that: The width of the flip plate is equal to the width of the adsorption tower.

5. The method for using the mother liquid desorption adsorption device according to any one of claims 1 to 4, characterized in that: The following steps are included: S1, the flip plate is vertically directed toward the bottom of the adsorption tower, the mother liquor is added into the adsorption tower through the mother liquor adding pipe, the chelating resin particles are put into the adsorption tower through the feed port, and the flip plate is separated from the liquid level of the mother liquor; S2, after the mother liquor and the chelating resin particles react for a period of time, the flip plate is inserted into the mother liquor, and the dual-axis motor pulls up the flip plates on both sides through ropes, and the flip plate scoops up the chelating resin particles; S3, the cylinder drives the sliding seat and the flip plate to slide upward, the double-axis motor tightens the loosened rope, and the first carbon sheet electrode and the second carbon sheet electrode contact each other to supply power to the multiple heating rods; S4, a plurality of heating rods heat the chelating resin particles, the flip plate is flipped toward the bottom of the adsorption tower, and the heated chelating resin particles are poured into the mother liquor.

6. The method for using the mother liquid desorption adsorption device according to claim 5, characterized in that: The flip plate is evenly distributed with a plurality of liquid leakage holes.

7. The method for using the mother liquid desorption adsorption device according to claim 6, characterized in that: In S3, before the first carbon sheet electrode contacts the second carbon sheet electrode, the flip plate remains suspended for a period of time.

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