A germanium distillation residue acid separation device

Abstract

The utility model relates to a separation device technical field, concretely relates to a germanium distillation residual acid separation device, including distillation tower body, the inside of distillation tower body is provided with heteromorphic tray mechanism, the heteromorphic tray mechanism includes a plurality of groups first inclined tray fixedly connected in the inner side wall of distillation tower body, the inner side wall of distillation tower body is fixedly connected with a plurality of groups second inclined tray, first inclined tray and second inclined tray all are evenly distributed from top to bottom, first inclined tray and second inclined tray are staggered distribution from top to bottom, the surface of first inclined tray and second inclined tray all are provided with a plurality of groups heteromorphic through -hole. The utility model cooperates with the heteromorphic tray mechanism through distillation tower body, and the staggered distribution of first inclined tray and second inclined tray cooperates the special structure of heteromorphic through -hole, effectively prolongs gas -liquid contact path, and the synergistic vibration effect of piezoelectric ceramic vibrator and ultrasonic generator not only prevents particle blockage, but also significantly improves mass transfer efficiency.

Description

Technical Field

[0001] This utility model relates to the field of separation device technology, specifically to a germanium distillation residual acid separation device. Background Technology

[0002] Germanium is primarily recovered from germanium-containing acidic solutions such as residual acid from wet zinc smelting and fiber optic waste. Industrially, vacuum distillation is commonly used to separate germanium from other impurities, and the tray structure of the core equipment, the distillation column, directly affects the germanium recovery rate and energy consumption. Traditional processes often employ sieve trays or floating valve trays, relying on vertical bubbling of gas and cross-flow contact with the liquid to achieve mass transfer. However, germanium residual acid is highly corrosive, has high viscosity, and is prone to scaling, placing stringent requirements on the corrosion resistance, anti-clogging properties, and mass transfer efficiency of the tray structure.

[0003] In the separation of germanium residual acid, the existing tray structure results in a short gas-liquid contact time in the floating valve tray and makes it prone to scaling.

[0004] Therefore, it is necessary to invent a germanium distillation residual acid separation device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a germanium distillation residual acid separation device, which improves recovery efficiency through the cooperation of the distillation tower body and the irregularly shaped tray mechanism, thereby solving the problems of short gas-liquid contact time and easy scaling in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a germanium distillation residual acid separation device, comprising a distillation column body, wherein an irregularly shaped tray mechanism is provided inside the distillation column body, the irregularly shaped tray mechanism comprising several sets of first inclined trays fixedly connected to the inner side wall of the distillation column body, and several sets of second inclined trays fixedly connected to the inner side wall of the distillation column body, the first and second inclined trays being evenly distributed from top to bottom, and the first and second inclined trays being staggered from top to bottom, and the surfaces of the first and second inclined trays being provided with several sets of irregularly shaped through holes, the irregularly shaped... The diameter of the upper and lower ends of the through hole is larger than that of the middle part. Two sets of corrugated gas guide strips are fixedly connected to the bottom of the first and second tilted trays. Flow grooves are opened on the surface of the first and second tilted trays. An overflow weir is fixedly connected to the top of the flow grooves. Two sets of piezoelectric ceramic transducers are fixedly connected to the surface of the first and second tilted trays. An ultrasonic generator is installed at the bottom of the distillation column. The gas-liquid contact time is extended by the staggered tilted trays, irregular through holes and corrugated gas guide strips. Combined with the synergistic effect of the piezoelectric ceramic transducers and the ultrasonic generator, the separation efficiency is significantly improved.

[0007] Preferably, both the first tilted tray and the second tilted tray are made of Hastelloy substrate, and the surfaces of the first tilted tray and the second tilted tray are coated with a hydrophobic coating to reduce particle adhesion and extend the service life of the equipment.

[0008] Preferably, a gas outlet pipe is fixedly connected to the top of the distillation column, and a three-way pipe is fixedly connected to the gas outlet end of the gas outlet pipe. A switching valve is installed at the connection between the gas outlet pipe and the three-way pipe. The gas outlet pipe, the three-way pipe and the switching valve enable the graded collection and directional flow of distillate gases, which facilitates the separation of components with different boiling points.

[0009] Preferably, a feed valve is fixedly connected to one side of the distillation column, and a feed pipe is fixedly connected to the side of the feed valve away from the distillation column, so that the precise feeding control of residual acid can be achieved through the feed pipe and the feed valve.

[0010] Preferably, a heating base is fixedly connected to the bottom of the distillation column, and a primary sieve plate is fixedly connected to the surface of the heating base. The residual acid is uniformly heated and pre-filtered through the heating base and the primary sieve plate to intercept large particulate impurities and protect the subsequent tray structure.

[0011] Preferably, a valved hydrochloric acid regeneration pipe is fixedly connected to the outside of the distillation tower body and is located above the heating base. A condenser is installed on the outside of the valved hydrochloric acid regeneration pipe. An adsorption tower is connected to the end of the valved hydrochloric acid regeneration pipe away from the distillation tower body. A solid waste treatment box is fixedly connected to the bottom of the distillation tower body. The solid waste treatment box is equipped with a centrifugal filtration unit and an acid-insoluble germanium recovery port. The valved hydrochloric acid regeneration pipe and the condenser are used to realize the recovery and utilization of HCl gas. The solid waste treatment box separates solid residue and recovers acid-insoluble germanium through centrifugal filtration.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: Through the coordination of the distillation column body and the irregularly shaped tray mechanism, the staggered distribution of the first and second inclined trays, combined with the special structure of the irregularly shaped through holes, effectively extends the gas-liquid contact path. The wave-shaped gas guide strip guides the gas to form a spiral upward path. Combined with the synergistic vibration of the piezoelectric ceramic vibrator and the ultrasonic generator, not only is particle blockage prevented, but mass transfer efficiency is also significantly improved. The combined design of the Hastelloy substrate and hydrophobic coating ensures the long-term stable operation of the equipment in a strong acid environment. The valved hydrochloric acid regeneration pipe and condenser realize the efficient recovery of hydrochloric acid, while the centrifugal filtration unit of the solid waste treatment tank completes the separation of solid residue and the recovery of acid-insoluble germanium. The entire set of equipment realizes the efficient recovery of germanium resources and the green treatment of waste acid. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0015] Explanation of reference numerals in the attached figures: 1. Distillation column body; 2. Irregularly shaped tray mechanism; 201. First inclined tray; 202. Second inclined tray; 203. Irregularly shaped through hole; 204. Corrugated gas guide strip; 205. Flow channel; 206. Overflow weir; 207. Ultrasonic generator; 208. Piezoelectric ceramic vibrator; 3. Gas outlet pipe; 4. Switch valve; 5. T-connector; 6. Feed pipe; 7. Feed valve; 8. Condenser; 9. Hydrochloric acid regeneration pipe with valve; 10. Heating base; 11. Primary sieve plate; 12. Solid waste treatment box. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-4The device for separating residual acid from germanium distillation, as shown, includes a distillation column 1. Inside the distillation column 1 is a shaped tray mechanism 2. The shaped tray mechanism 2 includes several sets of first inclined trays 201 fixedly connected to the inner wall of the distillation column 1, and several sets of second inclined trays 202 fixedly connected to the inner wall of the distillation column 1. The first inclined trays 201 and second inclined trays 202 are evenly distributed from top to bottom, and are staggered from top to bottom. Both the first and second inclined trays 201 and 202 have several sets of irregularly shaped through holes 203 on their surfaces. The diameter of the irregularly shaped through holes 203 at the top and bottom ends is larger than that in the middle. Two sets of corrugated gas guide strips 204 are fixedly connected to the bottom ends of both the first and second inclined trays 201 and 202. Flow grooves 205 are formed on the surfaces of both the first and second inclined trays 201 and 202. An overflow weir 206 is fixedly connected to the top of the flow grooves 205. Two sets of pressure... The piezoelectric ceramic transducer 208 and the ultrasonic generator 207 are installed at the bottom of the distillation column 1. The gas-liquid contact time is extended by the staggered distribution of tilted trays, irregularly shaped through-holes 203, and corrugated gas guide strips 204. Combined with the synergistic effect of the piezoelectric ceramic transducer 208 and the ultrasonic generator 207, the separation efficiency is significantly improved. Both the first tilted tray 201 and the second tilted tray 202 are made of Hastelloy substrate, and their surfaces are coated with a hydrophobic coating to reduce particle adhesion and extend the gas-liquid contact time. The equipment has a service life. The top of the distillation column 1 is fixedly connected to an outlet pipe 3. The outlet end of the outlet pipe 3 is fixedly connected to a three-way pipe 5. A switching valve 4 is installed at the connection between the outlet pipe 3 and the three-way pipe 5. The distillation gas is collected in stages and directed through the outlet pipe 3, the three-way pipe 5 and the switching valve 4, which facilitates the separation of components with different boiling points. A feed valve 7 is fixedly connected to one side of the distillation column 1. A feed pipe 6 is fixedly connected to the side of the feed valve 7 away from the distillation column 1. The feed pipe 6 and the feed valve 7 are used to achieve precise control of the feed of residual acid.

[0018] Refer to the instruction manual appendix Figure 1-4A heating base 10 is fixedly connected to the bottom of the distillation column 1. A primary sieve plate 11 is fixedly connected to the surface of the heating base 10. The residual acid is uniformly heated and pre-filtered through the heating base 10 and the primary sieve plate 11 to intercept large particulate impurities and protect the subsequent tray structure. A valved hydrochloric acid regeneration pipe 9 is fixedly connected to the outside of the distillation column 1, and the valved hydrochloric acid regeneration pipe 9 is located above the heating base 10. A condenser 8 is installed on the outside of the valved hydrochloric acid regeneration pipe 9. An adsorption tower is connected to the end of the valved hydrochloric acid regeneration pipe 9 away from the distillation column 1. A solid waste treatment box 12 is fixedly connected to the bottom of the distillation column 1. The solid waste treatment box 12 is equipped with a centrifugal filtration unit and an acid-insoluble germanium recovery port. The HCl gas is recovered and utilized using the valved hydrochloric acid regeneration pipe 9 and the condenser 8. The solid waste treatment box 12 separates solid residue through centrifugal filtration. The system recovers acid-insoluble germanium. Through the cooperation of the distillation tower body 1 and the irregular tray mechanism 2, the staggered distribution of the first inclined tray 201 and the second inclined tray 202, combined with the special structure of the irregular through hole 203, effectively extends the gas-liquid contact path. The wave-shaped gas guide strip 204 guides the gas to form a spiral upward path. Combined with the synergistic vibration of the piezoelectric ceramic vibrator 208 and the ultrasonic generator 207, it not only prevents particle blockage but also significantly improves the mass transfer efficiency. The combined design of the Hastelloy substrate and the hydrophobic coating ensures the long-term stable operation of the equipment in a strong acid environment. The valved hydrochloric acid regeneration pipe 9 and the condenser 8 realize the efficient recovery of hydrochloric acid, while the centrifugal filtration unit of the solid waste treatment tank 12 completes the separation of solid residue and the recovery of acid-insoluble germanium. The entire set of equipment realizes the efficient recovery of germanium resources and the green treatment of waste acid.

[0019] The working principle of this practical application is as follows: Refer to the instruction manual appendix Figure 1-4 During operation, residual germanium acid enters the distillation tower 1 through the feed pipe 6 and feed valve 7. It is first heated by the heating seat 10 and then preliminarily filtered through the primary sieve plate 11. The residual acid forms a liquid film in the irregular tray mechanism 2 along the flow channels 205 of the first inclined tray 201 and the second inclined tray 202. The overflow weir 206 controls the thickness of the liquid layer. The rising gas penetrates the liquid film obliquely through the irregular through hole 203, and its special structure reduces the flow resistance. At the same time, the vibration generated by the piezoelectric ceramic vibrator 208 and the ultrasonic generator 207 promotes particle dispersion. The separated gas is collected in stages through the gas outlet pipe 3 and the switching valve 4. The HCl-containing gas is recovered through the hydrochloric acid regeneration pipe 9 with a valve and then through the condenser 8. The residual liquid enters the solid waste treatment tank 12 for centrifugal separation, realizing the recovery of acid-insoluble germanium and further treatment of heavy metals, and finally completing the efficient recovery of germanium resources and the purification treatment of waste liquid.

[0020] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A germanium distillation residual acid separation device, comprising a distillation column (1), characterized in that: The interior of the distillation column (1) is provided with a shaped tray mechanism (2). The shaped tray mechanism (2) includes several sets of first inclined trays (201) fixedly connected to the inner wall of the distillation column (1). Several sets of second inclined trays (202) are fixedly connected to the inner wall of the distillation column (1). The first inclined trays (201) and the second inclined trays (202) are evenly distributed from top to bottom. The first inclined trays (201) and the second inclined trays (202) are staggered from top to bottom. Several sets of shaped through holes (203) are opened on the surface of the first inclined trays (201) and the second inclined trays (202). The diameter of the upper and lower ends of the irregular through hole (203) is larger than that of the middle part. The bottom ends of the first tilted tray (201) and the second tilted tray (202) are fixedly connected with two sets of wave-shaped gas guide strips (204). The surfaces of the first tilted tray (201) and the second tilted tray (202) are provided with flow grooves (205). The top of the flow grooves (205) is fixedly connected with an overflow weir (206). The surfaces of the first tilted tray (201) and the second tilted tray (202) are fixedly connected with two sets of piezoelectric ceramic vibrators (208). An ultrasonic generator (207) is installed at the bottom of the distillation column (1).

2. The germanium distillation residual acid separation device according to claim 1, characterized in that: Both the first tilted tray (201) and the second tilted tray (202) are made of Hastelloy substrate, and the surfaces of the first tilted tray (201) and the second tilted tray (202) are coated with a hydrophobic coating.

3. The germanium distillation residual acid separation device according to claim 1, characterized in that: The top of the distillation tower body (1) is fixedly connected to an outlet pipe (3), and the outlet end of the outlet pipe (3) is fixedly connected to a three-way pipe (5). A switching valve (4) is installed at the connection between the outlet pipe (3) and the three-way pipe (5).

4. The germanium distillation residual acid separation device according to claim 1, characterized in that: A feed valve (7) is fixedly connected to one side of the distillation column (1), and a feed pipe (6) is fixedly connected to the side of the feed valve (7) away from the distillation column (1).

5. The germanium distillation residual acid separation device according to claim 1, characterized in that: A heating base (10) is fixedly connected to the bottom end of the distillation column body (1), and a primary sieve plate (11) is fixedly connected to the surface of the heating base (10).

6. The germanium distillation residual acid separation device according to claim 5, characterized in that: A valved hydrochloric acid regeneration pipe (9) is fixedly connected to the outside of the distillation tower body (1) and the valved hydrochloric acid regeneration pipe (9) is located above the heating base (10). A condenser (8) is installed on the outside of the valved hydrochloric acid regeneration pipe (9). An adsorption tower is connected to the end of the valved hydrochloric acid regeneration pipe (9) away from the distillation tower body (1). A solid waste treatment box (12) is fixedly connected to the bottom of the distillation tower body (1). A centrifugal filtration unit and an acid-insoluble germanium recovery port are provided inside the solid waste treatment box (12).

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