Acid and alkali washing integrated device for zone-melting germanium ingot

Abstract

The utility model relates to an acid-alkali washing integrated device for zone-melting germanium ingots. The feeding transverse transferring mechanism and the discharging transverse transferring mechanism are arranged at the two ends of the rack correspondingly, and the heating pool, the pickling pool, the first cleaning pool, the alkali washing pool and the second cleaning pool are sequentially arranged on the front side of the upper portion of the rack in the direction from the feeding transverse transferring mechanism to the discharging transverse transferring mechanism. Ultrasonic vibration plates are installed on the side walls of the first cleaning pool, the alkali washing pool and the second cleaning pool, the truss mechanical arm is installed on the rack, and the feeding transverse transferring mechanism, the discharging transverse transferring mechanism and the truss mechanical arm are electrically connected with the control system. The heating tank, the pickling tank, the first cleaning tank, the alkaline cleaning tank and the second cleaning tank are respectively communicated with the pipeline system. The operation risk is reduced, the cleaning efficiency is improved, and the safety is improved; the occupational health risk of contact between sampling personnel and the concentrate is reduced; the labor intensity of workers is reduced, and the quality of the cleaned surface is improved.

Description

Technical Field

[0001] The present application relates to the technical field of germanium ingot cleaning devices, and particularly to a device for integrated acid and alkali cleaning of zone-melted germanium ingots. Background Art

[0002] In the related art, the size specifications of currently produced zone-melted germanium ingots are approximately: upper width: 33.5 mm, lower width: 30 mm, height: 35.6 mm, length: 500 mm. The cleaning process requirements are as follows:

[0003] Cleaning of qualified germanium ingots (germanium ingots after resistivity qualification and cutting): Mixed acid (nitric acid and hydrofluoric acid) is used for cleaning. The cleaning steps are as follows: ①Put the cut qualified zone-melted germanium ingots into cleaning tank A, and add boiling water above 90 °C to heat the germanium ingots; ②Put the heated germanium ingots into cleaning tank B and react with the mixed acid at about 50 °C for 5 - 10 seconds; ③Put the germanium ingots after cleaning in step ② into cleaning tank C and rinse with pure water. Requirements: The three tanks A, B, and C can automatically add a fixed amount of water or acid. Cleaning tank B can heat the mixed acid to about 50 °C; The unreacted mixed acid in cleaning tank B should be separately recovered and stored for continued use during the next cleaning, and then automatically discharged after use.

[0004] Cleaning of in-process germanium ingots (germanium ingots other than qualified ones): Caustic soda (sodium hydroxide) and hydrogen peroxide are used for cleaning. The cleaning steps are: ①Put the in-process germanium ingots into cleaning tank D, and add boiling water above 90 °C to heat the germanium ingots; ②Add a certain amount of caustic soda and hydrogen peroxide to cleaning tank D for reaction for 5 - 10 minutes; ③Put the germanium ingots after cleaning in step ② into cleaning tank E and rinse with pure water.

[0005] Requirements: Tanks D and E can automatically add a fixed amount of water or caustic soda and hydrogen peroxide; The solution in cleaning tank D after cleaning can be automatically discharged or separately recovered and stored.

[0006] Deficiencies of the above technologies:

[0007] ①The influence of human factors on the quality of samples is relatively large: The temperature, time, and surface cleaning during acid cleaning, alkali cleaning, and general cleaning have a great impact on the final quality.

[0008] ②There are risks of occupational diseases: Strong acids, strong alkalis, and heavy metals, and the cleaning personnel come into contact with the products, which is not conducive to the physical and mental health of the operators.

[0009] ③High labor intensity: The cleaning time is long but the process is complex, resulting in high labor intensity and low efficiency. Content of the Utility Model

[0010] To solve or partially solve the problems existing in the related art, the present application provides a device for integrated acid and alkali cleaning of zone-melted germanium ingots, which can reduce the operation risk, improve the cleaning efficiency and enhance the safety.

[0011] The present application provides a device for integrated acid and alkali cleaning of zone-melted germanium ingots, including a frame 1, a loading horizontal transfer mechanism 2, an unloading horizontal transfer mechanism 3, a heating tank 4, an acid pickling tank 5, a first cleaning tank 6, an alkali cleaning tank 7, a second cleaning tank 8, a truss manipulator 9, and a control system; the loading horizontal transfer mechanism 2 and the unloading horizontal transfer mechanism 3 are respectively arranged at both ends of the frame 1, and along the direction from the loading horizontal transfer mechanism 2 to the unloading horizontal transfer mechanism 3, a heating tank 4, an acid pickling tank 5, a first cleaning tank 6, an alkali cleaning tank 7, and a second cleaning tank 8 are sequentially arranged on the front side of the upper part of the frame 1. Ultrasonic vibration plates 10 are installed on the side walls of the first cleaning tank 6, the alkali cleaning tank 7, and the second cleaning tank 8. The truss manipulator 9 is installed on the frame 1, and the loading horizontal transfer mechanism 2, the unloading horizontal transfer mechanism 3, and the truss manipulator 9 are respectively electrically connected to the control system; the heating tank 4, the acid pickling tank 5, the first cleaning tank 6, the alkali cleaning tank 7, and the second cleaning tank 8 are respectively communicated with a pipeline system 11.

[0012] Optionally, in some solutions, a device housing 12 is arranged on the frame 1, and the loading horizontal transfer mechanism 2, the unloading horizontal transfer mechanism 3, the heating tank 4, the acid pickling tank 5, the first cleaning tank 6, the alkali cleaning tank 7, the second cleaning tank 8, and the truss manipulator 9 are all located inside the cavity of the device housing 12.

[0013] Optionally, in some solutions, suction air duct systems 13 for timely exhausting the generated water vapor, acid and alkali gases are arranged on the upper sides of the heating tank 4, the acid pickling tank 5, the first cleaning tank 6, the alkali cleaning tank 7, and the second cleaning tank 8.

[0014] Optionally, in some solutions, the acid pickling tank 5 is connected with an acid recovery heating system 14.

[0015] The technical solutions provided by the present application may include the following beneficial effects:

[0016] The present application reduces the operation risk, improves the cleaning efficiency and enhances the safety;

[0017] Reduces the occupational health risk of the sampling personnel's contact with the concentrate;

[0018] Reduces the manual labor intensity and improves the quality of the cleaned surface;

[0019] Can meet the different cleaning process requirements for germanium ingot finished products, in-process products and non-conforming products.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Brief Description of the Drawings

[0021] The above and other objects, features, and advantages of the present application will become more apparent by describing the exemplary embodiments of the present application in more detail in conjunction with the accompanying drawings, wherein, in the exemplary embodiments of the present application, the same reference numerals generally represent the same components.

[0022] Figure 1 is a schematic structural diagram of an integrated acid and alkali washing device for zone-melted germanium ingots shown in an embodiment of the present application;

[0023] Figure 2 is another schematic structural diagram of an integrated acid and alkali washing device for zone-melted germanium ingots shown in an embodiment of the present application;

[0024] Figure 3 is a schematic external structural diagram of an integrated acid and alkali washing device for zone-melted germanium ingots shown in an embodiment of the present application.

[0025] Reference Numerals:

[0026] 1 - Frame, 2 - Loading Horizontal Transfer Mechanism, 3 - Unloading Horizontal Transfer Mechanism, 4 - Heating Pool, 5 - Acid Pickling Pool, 6 - First Cleaning Pool, 7 - Alkali Washing Pool, 8 - Second Cleaning Pool, 9 - Truss Manipulator, 10 - Ultrasonic Vibration Plate, 11 - Pipeline System, 12 - Device Shell, 13 - Suction Air Duct System, 14 - Acid Recovery Heating System. Detailed Description of the Embodiments

[0027] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0028] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0030] Unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] In view of the above problems, an embodiment of the present application provides a device for integrated acid and alkali washing of zone-melted germanium ingots, which can reduce the operation risk, improve the cleaning efficiency, and improve the safety.

[0032] The technical solutions of the embodiments of the present application will be described in detail below with reference to the drawings.

[0033] See Figure 1 , the device for integrated acid and alkali washing of zone-melted germanium ingots includes a frame 1, a loading transverse transfer mechanism 2, an unloading transverse transfer mechanism 3, a heating pool 4, an acid washing pool 5, a first cleaning pool 6, an alkali washing pool 7, a second cleaning pool 8, a truss manipulator 9, and a control system; the loading transverse transfer mechanism 2 and the unloading transverse transfer mechanism 3 are respectively arranged at both ends of the frame 1, and along the direction from the loading transverse transfer mechanism 2 to the unloading transverse transfer mechanism 3 on the front side of the upper part of the frame 1, there are sequentially arranged a heating pool 4, an acid washing pool 5, a first cleaning pool 6, an alkali washing pool 7, and a second cleaning pool 8. And ultrasonic vibration plates 10 are installed on the side walls of the first cleaning pool 6, the alkali washing pool 7, and the second cleaning pool 8. The truss manipulator 9 is installed on the frame 1, and the loading transverse transfer mechanism 2, the unloading transverse transfer mechanism 3, and the truss manipulator 9 are respectively electrically connected to the control system; the heating pool 4, the acid washing pool 5, the first cleaning pool 6, the alkali washing pool 7, and the second cleaning pool 8 are respectively communicated with a pipeline system 11.

[0034] During operation, the carrier plate controls the feeding horizontal transfer mechanism 2 for feeding through the control system. Then, the control system controls the gantry robot 9 to grasp the germanium ingot and place it into the heating pool 4. High-temperature water is added to the heating pool 4 to heat the germanium ingot. Subsequently, the control system controls the gantry robot 9 to grasp the germanium ingot and place it into the pickling pool 5, the first cleaning pool 6, the alkali washing pool 7, and the second cleaning pool 8 in sequence for pickling and alkali washing. During cleaning, the ultrasonic vibration plate 10 is started to clean the reactants generated on the surface of the germanium ingot during pickling or alkali washing. After the cleaning is completed through the second cleaning pool 8, the control system controls the gantry robot 9 to grasp the germanium ingot and place it on the carrier plate on the discharging horizontal transfer mechanism 3. Then, the discharging horizontal transfer mechanism 3 is controlled to convey the cleaned germanium ingot to a suitable position.

[0035] In some embodiments, referring to Figure 3 , a device housing 12 is provided on the frame 1. The feeding horizontal transfer mechanism 2, the discharging horizontal transfer mechanism 3, the heating pool 4, the pickling pool 5, the first cleaning pool 6, the alkali washing pool 7, the second cleaning pool 8, and the gantry robot 9 are all located inside the cavity of the device housing 12.

[0036] During operation, the housing 12 can prevent the cleaning liquid from splashing and causing injury to the staff during the cleaning process of the germanium ingot.

[0037] In some embodiments, referring to Figure 2 , an air suction duct system 13 for timely exhausting the generated water vapor, acid and alkali gases is arranged above the heating pool 4, the pickling pool 5, the first cleaning pool 6, the alkali washing pool 7, and the second cleaning pool 8.

[0038] During operation, the water vapor, acid and alkali gases generated during the cleaning in the heating pool 4, the pickling pool 5, the first cleaning pool 6, the alkali washing pool 7, and the second cleaning pool 8 can be timely exhausted through the air suction duct system 13 to avoid affecting the cleaning of the germanium ingot inside the device housing 12.

[0039] In some embodiments, the pickling pool 5 is connected with an acid recovery heating system 14.

[0040] During operation, the acid after pickling is timely extracted by the acid recovery heating system 14 and stored in the acid storage tank, heated and kept warm, and then recycled for reuse to save resources.

[0041] Finally, it should also be noted that in this text, relationships such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0042] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed over multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0043] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A device for acid and alkali washing of zone melting germanium ingots, characterized in that: The device for acid and alkali washing of zone melting germanium ingots comprises a frame (1), a loading lateral transfer mechanism (2), a unloading lateral transfer mechanism (3), a heating tank (4), an acid washing tank (5), a first washing tank (6), an alkali washing tank (7), a second washing tank (8), a truss manipulator (9), and a control system; the loading lateral transfer mechanism (2) and the unloading lateral transfer mechanism (3) are respectively arranged at two ends of the frame (1), and the upper front side of the frame (1) is provided with a heating tank (4), a first washing tank (6), an alkali washing tank (7), a second washing tank (8), a truss manipulator (9), and a control system in sequence along the direction from the loading lateral transfer mechanism (2) to the unloading lateral transfer mechanism (3). The invention relates to a pickling tank (5), a first cleaning tank (6), an alkali cleaning tank (7), and a second cleaning tank (8), and ultrasonic vibration plates (10) are installed on the side walls of the first cleaning tank (6), the alkali cleaning tank (7), and the second cleaning tank (8); a truss manipulator (9) is installed on the frame (1); a loading lateral transfer mechanism (2), a unloading lateral transfer mechanism (3), and the truss manipulator (9) are respectively electrically connected to a control system; and a heating tank (4), a pickling tank (5), a first cleaning tank (6), an alkali cleaning tank (7), and a second cleaning tank (8) are respectively connected to a pipeline system (11).

2. The device for acid and alkali washing of zone melting germanium ingot according to claim 1, characterized in that: The frame (1) is provided with a device shell (12), and a loading lateral transfer mechanism (2), a unloading lateral transfer mechanism (3), a heating tank (4), a pickling tank (5), a first cleaning tank (6), an alkaline cleaning tank (7), a second cleaning tank (8), and a truss manipulator (9) are all located in the inner cavity of the device shell (12).

3. The device for acid and alkali washing of zone melting germanium ingot according to claim 1 or 2, characterized in that: The upper sides of the heating tank (4), the pickling tank (5), the first cleaning tank (6), the alkali cleaning tank (7), and the second cleaning tank (8) are all provided with an air intake duct system (13) for timely extracting the generated water vapor and acid and alkali gas.

4. The device for acid and alkali washing of zone melting germanium ingot according to claim 3 is characterized in that: The pickling tank (5) is connected to an acid recovery heating system (14).

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