Device for recovering silicon-based alloy flux metal

Abstract

The utility model discloses a device for recovering silicon-based alloy flux metal, which comprises a power supply, an electrolytic bath, a strip-shaped fixing plate, a plurality of groups of fixing rods, inert electrodes and a filtering and collecting component, the strip-shaped fixing plate is fixedly arranged at the top of the electrolytic bath, each fixing rod is fixed on the strip-shaped fixing plate, and the inert electrodes are arranged on the strip-shaped fixing plate. An inert electrode and a silicon-based alloy are respectively arranged at the bottom end of the fixed rod, the inert electrode and the silicon-based alloy are respectively connected with a positive electrode and a negative electrode of a power supply through wires, a filtering and collecting assembly for collecting metal is arranged below the inert electrode, the filtering and collecting assembly is fixed at the bottom of the electrolytic bath, and the upper end of the filtering and collecting assembly is communicated with the electrolytic bath. According to the utility model, high-efficiency collection and recovery of precipitated metal can be realized, the precipitated metal is flushed into the filtering and collecting assembly through gravity and water flow after the valve is opened, solid-liquid separation and emptying of electrolyte in the electrolytic bath are realized through the filter screen, and rapid collection of the metal can be realized by detaching the detachable filter screen when the metal is collected; and user operation and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon-based alloy flux metal recovery, in particular to a device for recovering silicon-based alloy flux metal. Background Art

[0002] In the solar energy industry, the raw material used to prepare high-purity silicon materials (purity of 99.9999%) is metallurgical grade industrial silicon, which is obtained by smelting quartz ore in a submerged arc furnace. The types and distribution of impurities in the smelting process have obvious characteristics. At present, the slag refining and electron beam melting processes used to remove non-metallic impurities have problems such as high energy consumption and low efficiency. Therefore, a method of refining and purifying industrial silicon using microalloying is proposed.

[0003] For example, the Chinese invention patent with patent number CN202110509504.6: A method for refining and purifying industrial silicon by microalloying, in which a composite flux metal is added to industrial silicon for refining, and the non-metallic impurities are adsorbed by the formed mixed phase. At the same time, by using the method of pickling and step-by-step electrochemical deposition, impurities can be removed and the composite flux metal can be recovered according to different voltage adjustments.

[0004] In order to realize the integrated treatment of electrolysis, recovery and separation of refined silicon alloy, the utility model proposes a device for recovering silicon-based alloy flux metal, which can efficiently recover the metal components in the silicon-based alloy flux and realize the recycling of resources. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a device for recovering silicon-based alloy flux metal.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the utility model is:

[0007] A device for recovering silicon-based alloy flux metal comprises: a power supply, an electrolytic cell, a strip-shaped fixed plate, a fixed rod, an inert electrode, and a filtering and collecting assembly. The strip-shaped fixed plate is fixedly installed on the top of the electrolytic cell. The fixed rods are arranged in multiple groups, each of which is fixed on the strip-shaped fixed plate. The bottom ends of the fixed rods are respectively provided with inert electrodes and silicon-based alloys. The inert electrodes and silicon-based alloys are respectively connected to the positive and negative electrodes of the power supply through wires. The filtering and collecting assemblies for collecting metals are arranged below the inert electrodes. The filtering and collecting assemblies are fixed to the bottom of the electrolytic cell, and the upper ends thereof are communicated with the electrolytic cell.

[0008] As a possible implementation mode, further, the filtering and collecting assembly includes a funnel, a storage tube, a detachable filter screen, and a valve. The funnel is fixed to the bottom of the electrolytic cell, the inert electrode is located in the funnel, a valve is provided at the lower end of the funnel, the lower end of the valve is detachably connected to the storage tube, and the bottom end of the storage tube is connected to the detachable filter screen.

[0009] As a possible implementation manner, further, the detachable filter includes a cover body and a filter screen, the filter screen is arranged in the middle of the cover body, and the cover body is threadedly connected to the bottom end of the storage tube.

[0010] As a possible implementation manner, further, the storage tube is threadedly connected to the lower port of the valve.

[0011] As a possible implementation manner, further, the wire is wound around a fixing rod.

[0012] As a preferred embodiment, preferably, a waste liquid pool is provided at the lower end of the filter collection component.

[0013] As a possible implementation manner, further, the strip-shaped fixing plate is fixed to the top of the electrolytic cell by bolts.

[0014] By adopting the above technical solution, the utility model has the following beneficial effects:

[0015] The utility model can realize the efficient collection and recovery of precipitated metals. After the valve is opened, the precipitated metals are flushed into the filtering and collecting component by gravity and water flow, and the solid-liquid separation and the emptying of the electrolyte in the electrolytic cell are realized through the filter. When collecting the metals, the detachable filter can be disassembled to realize the rapid collection of the metals, which is convenient for users to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the filter collection component;

[0019] Figure 3 Schematic diagram of the structure of the detachable filter screen in the embodiment.

[0020] The labels in the figure are as follows:

[0021] Power source-1; electrolytic cell-2; strip fixing plate-3; fixing rod-4; wire-5; inert electrode-6; filtering and collecting assembly-7; silicon-based alloy-8; waste liquid pool-9; funnel-71; storage tube-72; removable filter-73; valve-74; cover-731; filter-732. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] See attached Figure 1 As shown, this embodiment provides a device for recovering silicon-based alloy flux metal, including: a power supply 1 (power supply 1 is a power supply with adjustable voltage), an electrolytic cell 2, a strip-shaped fixed plate 3, a fixed rod 4, an inert electrode 6, and a filtering and collecting assembly 7. The strip-shaped fixed plate 3 is fixedly installed on the top of the electrolytic cell 2 by bolts, and the strip-shaped fixed plate 3 does not completely cover the upper opening of the electrolytic cell 2. Multiple groups of fixed rods 4 are provided, and each fixed rod 4 is fixed on the strip-shaped fixed plate 3. The bottom ends of the fixed rods 4 are respectively provided with inert electrodes 6 and silicon-based alloys 8, wherein the inert electrodes can be selected from graphite, platinum metal, etc.

[0024] The inert electrode 6 and the silicon-based alloy 8 are respectively connected to the positive and negative electrodes of the power source 1 through the wire 5, wherein the wire 5 has a certain plasticity and can be coated with polytetrafluoroethylene on the outside to ensure that it is not affected by the acidic electrolyte. Specifically, in this embodiment, the wire 5 is wound around the fixed rod 4, the upper end is connected to the power source, and the lower end is connected to the inert electrode 6 / silicon-based alloy 8; the wire 5 is wound around the fixed rod 4, which plays a fixing role on the wire and can prevent the wires from being entangled and knotted.

[0025] A filter collection assembly 7 for collecting metals is disposed below the inert electrode 6 . The filter collection assembly 7 is fixed to the bottom of the electrolytic cell 2 , and its upper end is in communication with the electrolytic cell 2 .

[0026] See attached Figure 2As shown, the filtering and collecting assembly 7 comprises a funnel 71, a storage tube 72, a detachable filter screen 73, and a valve 74. The funnel 71 is fixed to the bottom of the electrolytic cell 2, the inert electrode 6 is located in the funnel 71, and a valve 74 is provided at the lower end of the funnel 71. The lower end of the valve 74 is threadedly connected to the storage tube 72, and the bottom end of the storage tube 72 is connected to the detachable filter screen 73. The metal precipitated on the inert electrode 6 falls into the funnel 71. When the valve 74 is opened, the precipitated metal is flushed into the filtering and collecting assembly by gravity and water flow, and solid-liquid separation is achieved through the filter screen. When collecting the metal, the detachable filter screen can be removed to achieve rapid collection of the metal.

[0027] A waste liquid pool 9 is provided at the lower end of the filter collection assembly 7. After the filter collection assembly 7 filters out the metal, the electrolyte can only be discharged into the waste liquid pool 9 by removing the filter screen 73. The electrolyte in the waste liquid pool can be added back to the electrolytic cell for use later.

[0028] See attached Figure 3 As shown, in this embodiment, the detachable filter 73 includes a cover 731 and a filter 732. The filter 732 is arranged in the middle of the cover 731 for solid-liquid separation. The cover 731 is threadedly connected to the bottom end of the storage tube 72 to facilitate the subsequent removal of the filter 732 to collect the metal.

[0029] When the device is used, first add electrolyte to the electrolytic cell 2, connect the silicon-based alloy 8 and the inert electrode 6 to the wire 5 and fix them to the lower end of the fixing rod 4, fix the strip fixing plate 3 on the electrolytic cell 2, and make each inert electrode 6 extend into the funnel 71 of the filtering and collecting assembly 7, then connect the wire 5 connected to the silicon-based alloy 8 to the positive electrode of the power supply 1, and connect the wire 5 connected to the inert electrode 6 to the negative electrode of the power supply 1. At this time, the silicon-based alloy 8 acts as an anode to precipitate metal ions, and the metal ions migrate in the electrolyte to the inert electrode 6-cathode, and precipitate in the inert electrode 6-cathode and adhere to the inert electrode 6. By changing the potential of the power supply 1, different metals can be precipitated on the inert electrode 6 respectively.

[0030] After all the metals to be recovered have been precipitated, the silicon-based alloy 8 is connected to the negative electrode of the power supply 1, and the inert electrode 6 is connected to the positive electrode of the power supply 1. At this time, the inert electrode 6 is the anode, and the electrolysis reaction of water occurs in the electrolytic cell 2. The corresponding metal attached to the inert electrode 6 thus falls off and falls into the funnel 71 of the filter collection component 7. Then the valve 74 on the filter collection component 7 is opened, and the fallen metal comes to the storage tube 72 with the electrolyte under the action of gravity and water flow, and is separated from the solid by the detachable filter 73. When the metal needs to be collected, the metal on the storage tube 72 and the detachable filter 73 can be quickly collected by disassembling the detachable filter 73.

[0031] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for recovering silicon-based alloy flux metal, characterized in that: include: A power source (1), an electrolytic cell (2), a strip-shaped fixed plate (3), a fixed rod (4), an inert electrode (6), and a filtering and collecting assembly (7), wherein the strip-shaped fixed plate (3) is fixedly mounted on the top of the electrolytic cell (2), a plurality of fixed rods (4) are provided, each of which is fixed on the strip-shaped fixed plate (3), an inert electrode (6) and a silicon-based alloy (8) are provided at the bottom of each fixed rod (4), the inert electrode (6) and the silicon-based alloy (8) are respectively connected to the positive and negative electrodes of the power source (1) through a wire (5), and a filtering and collecting assembly (7) for collecting metals is provided below each of the inert electrodes (6), the filtering and collecting assembly (7) is fixed to the bottom of the electrolytic cell (2), and its upper end is in communication with the electrolytic cell (2).

2. The device for recovering silicon-based alloy flux metal according to claim 1, characterized in that: The filtering and collecting assembly (7) comprises a funnel (71), a storage tube (72), a detachable filter screen (73), and a valve (74); the funnel (71) is fixed to the bottom of the electrolytic cell (2); the inert electrode (6) is located in the funnel (71); a valve (74) is provided at the lower end of the funnel (71); the lower end of the valve (74) is detachably connected to the storage tube (72); and the bottom end of the storage tube (72) is connected to the detachable filter screen (73).

3. The device for recovering silicon-based alloy flux metal according to claim 2, characterized in that: The detachable filter (73) comprises a cover (731) and a filter (732), wherein the filter (732) is arranged in the middle of the cover (731), and the cover (731) is threadedly connected to the bottom end of the storage tube (72).

4. The device for recovering silicon-based alloy flux metal according to claim 2, characterized in that: The storage tube (72) is threadedly connected to the lower end of the valve (74).

5. The device for recovering silicon-based alloy flux metal according to claim 1, characterized in that: The wire (5) is wound around the fixing rod (4).

6. The device for recovering silicon-based alloy flux metal according to claim 1, characterized in that: A waste liquid pool (9) is provided at the lower end of the filtering and collecting assembly (7).

7. The device for recovering silicon-based alloy flux metal according to claim 1, characterized in that: The strip-shaped fixing plate (3) is fixed to the top of the electrolytic cell (2) by means of bolts.

Images