Germanium-containing solid waste recovery production system and method

Abstract

The invention relates to the technical field of solid waste recovery, in particular to a germanium-containing solid waste recovery production system and method.The germanium-containing solid waste recovery production system comprises a base, a supporting frame, a collecting shell, a storage box and a separation assembly, the supporting frame is fixedly connected with the base and located on one side of the base, and the collecting shell is arranged on the supporting frame; the separating assembly comprises a linear motion air cylinder, a rotating head, a cover plate, a feeding pipe, a discharging pipe, a rotating chassis and a rotating motor, the rotating chassis is rotationally arranged in the collecting shell, the output end of the rotating motor is connected with the rotating chassis, the linear motion air cylinder is arranged at the top of the collecting shell, and the rotating head is rotationally arranged at the output end of the linear motion air cylinder; the cover plate is rotationally arranged on the rotating head, the feeding pipe and the discharging pipe penetrate through the rotating head and are close to the rotating base plate, and the feeding valve and the discharging valve are arranged on the feeding pipe and the discharging pipe respectively, so that separated impurities can be discharged more conveniently, subsequent leaching liquid can be separated conveniently, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste recycling, and particularly to a germanium-containing solid waste recycling production system and method. Background Art

[0002] In the process of semiconductor manufacturing, a large amount of germanium-containing waste materials are generated, such as waste semiconductor chips, germanium substrate slices, and process waste residues. With the increasing demand for germanium and the growing scarcity of resources, it has become particularly important to recover germanium from various germanium-containing waste materials such as waste residues, waste liquids, and used electronic products. By using physical, chemical, or biological methods, these germanium-containing solid wastes can be processed to achieve effective recovery of germanium, which not only helps to alleviate the shortage of germanium resources but also reduces environmental pollution and promotes resource recycling.

[0003] In the process of treating existing waste materials, it is necessary to separate the solid impurities contained in the leaching solution. After separation by the existing method, the impurities will remain in the container and are not easy to take out, thus reducing the efficiency of continuous treatment. Summary of the Invention

[0004] The purpose of the present invention is to provide a germanium-containing solid waste recycling production system and method, aiming to more conveniently discharge the separated impurities, so as to facilitate the continuous separation of subsequent leaching solutions and improve work efficiency.

[0005] To achieve the above purpose, in the first aspect, the present invention provides a germanium-containing solid waste recycling production system, including a base, a support frame, and a collection shell. The support frame is fixedly connected to the base and is located on one side of the base. The collection shell is arranged on the support frame. The system further includes a storage tank and a separation component. The separation component includes a linear motion cylinder, a rotating head, a cover plate, a feed pipe, a discharge pipe, a rotating chassis, and a rotating motor. The rotating chassis is rotatably arranged in the collection shell, and the output end of the rotating motor is connected to the rotating chassis. The linear motion cylinder is arranged on the top of the collection shell. The rotating head is rotatably arranged on the output end of the linear motion cylinder. The cover plate is rotatably arranged on the rotating head. The feed pipe and the discharge pipe pass through the rotating head and are close to the rotating chassis. The feed pipe is communicated with the storage tank, and a feed valve and a discharge valve are respectively arranged on the feed pipe and the discharge pipe.

[0006] Wherein, the rotating head includes a connecting head and a rotating ring. The connecting head has a circulation hole. The connecting head is connected to the output end of the linear motion cylinder. The rotating ring is rotatably arranged on the connecting head and is connected to the cover plate.

[0007] Wherein, the separation component further includes a return spring, and the return spring is arranged between the linear motion cylinder and the connecting head.

[0008] Wherein, the cover plate has a support wall which is inclined so that impurities moving onto the support wall under the action of centrifugal force move downward along the support wall and concentrate.

[0009] Wherein, the cover plate further has a placement cavity which is located at the bottom of the support wall and contacts the rotating chassis.

[0010] Wherein, the separation assembly further includes a support ring which is arranged on the rotating chassis.

[0011] Wherein, the separation assembly further includes a solid waste collection channel which is arranged outside the rotating chassis.

[0012] In a second aspect, the present invention further provides a method for recycling germanium-containing solid waste, including: crushing the germanium-containing solid waste and dissolving it with an acid solution to obtain a leaching solution;

[0013] Opening the feed valve and feeding the leaching solution through the feed pipe into the space between the rotating chassis and the cover plate;

[0014] Starting the rotating motor to drive the rotating bottom plate to rotate at a high speed so that the leached impurities move to the outer ring of the rotating chassis under the action of centrifugal force to separate from the liquid;

[0015] After separation, under the action of gravity, the impurities in the outer ring fall onto the rotating chassis. Closing the feed valve and opening the discharge valve, discharging the liquid containing germanium into the storage tank through the discharge pipe;

[0016] Using an organic solvent to extract the germanium-containing solution in the storage tank.

[0017] For a germanium-containing solid waste recycling production system and method of the present invention, the support frame is firmly connected to the base, providing a necessary supporting role to ensure the stability and durability of the system. The collection shell is installed on the support frame, used to accommodate subsequent processing components and centrally manage the materials during the processing. During operation, the cover plate is driven by a linear motion cylinder to move downward to close the rotating chassis, and then the feed valve is opened, so that the materials placed in the storage tank enter the closed space between the rotating chassis and the top cover through the feed pipe. Then the rotating motor is started to drive the rotating chassis to rotate at a high speed, so that under the action of high-speed centrifugation, the leaching solution and the solid waste are separated. The solid waste is distributed in the outer layer due to its greater weight, while the leaching solution is in the inner layer. Then, by gradually reducing the rotation speed, then opening the discharge valve, and discharging the separated leaching solution through the discharge pipe. Then opening the top cover and starting the rotation of the rotating chassis again, so that the waste remaining on the rotating chassis can be thrown out under the action of centrifugal force, making the cleaning more convenient and facilitating the next solid-liquid separation of the materials, improving the processing efficiency. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a structural diagram of a germanium-containing solid waste recycling production system of the present invention.

[0020] Figure 2 It is a structural diagram of a germanium-containing solid waste recycling production system of the present invention.

[0021] Figure 3 It is a first sectional structural diagram of a germanium-containing solid waste recycling production system of the present invention.

[0022] Figure 4 is Figure 3 A partial enlarged view of detail A.

[0023] Figure 5 is Figure 3 A partial enlarged view of detail B.

[0024] Figure 6 It is a second sectional structural diagram of a germanium-containing solid waste recycling production system of the present invention.

[0025] Figure 7 It is a flowchart of a germanium-containing solid waste recycling production method of the present invention.

[0026] Base 101, support frame 102, collection shell 103, storage box 104, linear motion cylinder 106, rotating head 107, cover plate 108, feed pipe 109, discharge pipe 110, rotating chassis 111, rotating motor 112, box body 113, liquid level sensor 114, stirring motor 116, stirring rod 117, stirring blade 118, connecting head 119, rotating ring 120, circulation hole 121, return spring 122, support wall 123, placement cavity 124, support ring 127, conical baffle 129, discharge channel 130, cleaning head body 135, triangular push block 136, second spring 137, push rod 138. Detailed implementation manners

[0027] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0028] In the description of the present invention, 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 invention 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, and therefore should not be construed as a limitation on the present invention. In addition, in the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0029] First Embodiment

[0030] Please refer to Figures 1 to 6 , the present invention provides a germanium-containing solid waste recycling production system, including a base 101, a support frame 102 and a collection shell 103. The support frame 102 is fixedly connected to the base 101 and is located on one side of the base 101. The collection shell 103 is arranged on the support frame 102. It further includes a storage bin 104 and a separation component. The separation component includes a linear motion cylinder 106, a rotating head 107, a cover plate 108, a feed pipe 109, a discharge pipe 110, a rotating chassis 111 and a rotating motor 112. The rotating chassis 111 is rotatably arranged in the collection shell 103, and the output end of the rotating motor 112 is connected to the rotating chassis 111. The linear motion cylinder 106 is arranged on the top of the collection shell 103, the rotating head 107 is rotatably arranged on the output end of the linear motion cylinder 106, the cover plate 108 is rotatably arranged on the rotating head 107, and the rotating chassis 111 fits and seals the bottom opening of the cover plate 108. The feed pipe 109 and the discharge pipe 110 pass through the rotating head 107 and are close to the rotating chassis 111. The feed pipe 109 is connected to the storage bin 104, and a feed valve and a discharge valve are respectively arranged on the feed pipe 109 and the discharge pipe 110.

[0031] In this embodiment, the support frame 102 is firmly connected to the base 101, providing the necessary supporting effect to ensure the stability and durability of the system. The collection shell 103 is installed on the support frame 102, which is used to accommodate the subsequent processing components and centrally manage the materials during the processing.

[0032] During operation, the cover plate 108 is driven downward by the linear motion cylinder 106 to close the rotating chassis 111. Then, the feed valve is opened, so that the material placed in the storage bin 104 enters the enclosed space between the rotating chassis 111 and the top cover through the feed pipe 109. After that, the rotating motor 112 is started to drive the rotating chassis 111 to rotate at a high speed. Under the action of high-speed centrifugation, the leaching solution and solid waste are separated. The solid waste is distributed on the outer layer due to its greater weight, while the leaching solution is on the inner layer. Then, by gradually reducing the rotation speed, the discharge valve is opened, and the separated leaching solution is discharged through the discharge pipe 110. After that, the top cover is opened, and the rotating chassis 111 is started to rotate again, so that the waste remaining on the rotating chassis 111 can be thrown out under the action of centrifugal force, making the cleaning more convenient and facilitating the next solid-liquid separation of the material, thus improving the processing efficiency.

[0033] The storage bin 104 includes a box body 113, a liquid level sensor 114 and a stirrer. The liquid level sensor 114 is arranged inside the box body 113, and the stirrer is rotatably arranged inside the box body 113.

[0034] The box body 113 is the basic structure of the storage bin 104 and is used to accommodate the germanium-containing solid waste material to be processed. In order to realize the real-time monitoring of the material quantity in the box body 113, a liquid level sensor 114 is specially configured. This sensor is precisely installed inside the box body 113 and can continuously monitor the height or volume change of the material and feedback this data to the control system, so that the operator can adjust the feeding speed or other parameters according to the actual situation to ensure the stable operation of the system.

[0035] The stirrer is another key component in the storage bin 104. It is mainly used to prevent the solid waste from precipitating or caking during storage and ensure the uniform distribution of the material.

[0036] As a preferred implementation manner of this solution, the stirrer includes a stirring motor 116, a stirring rod 117 and stirring blades 118. The stirring rod 117 is rotatably arranged inside the box body 113. The output end of the stirring motor 116 is connected to the stirring rod 117, and the stirring blades 118 are connected to the stirring rod 117.

[0037] The stirring rod 117 is rotatably arranged inside the box body 113, enabling it to rotate freely. The stirring motor 116 serves as the power source, and its output end is directly connected to the stirring rod 117 to drive the stirring rod 117 to perform a rotating action. The stirring blades 118 are key components fixedly connected to the stirring rod 117. When the stirring rod 117 rotates, the stirring blades 118 also move accordingly. By applying shear force and driving force to the material, any possible agglomerates or sediment layers can be effectively dispersed, maintaining the good fluidity of the material.

[0038] The rotating head 107 includes a connecting head 119 and a rotating ring 120. The connecting head 119 has a circulation hole 121. The connecting head 119 is connected to the output end of the linear motion cylinder 106. The rotating ring 120 is rotatably arranged on the connecting head 119 and is connected to the cover plate 108.

[0039] The connecting head 119 is the basic part of the rotating head 107. It not only plays a role in connecting the output end of the linear motion cylinder 106, but also has the design of the circulation hole 121. This design allows the feed pipe 109 and the discharge pipe 110 to pass through and be connected to other components, thus ensuring that the material can flow smoothly into or out of the rotating head 107. By tightly connecting the connecting head 119 with the output end of the linear motion cylinder 106, precise control of the position of the rotating head 107 can be achieved, enabling the entire system to be flexibly adjusted under different working conditions to meet various processing requirements.

[0040] The rotating ring 120 is the key component in the rotating head 107 responsible for realizing the rotation function. It is cleverly rotatably arranged on the connecting head 119, enabling it to freely rotate around the connecting head 119, so that the top cover can rotate together with the rotating chassis 111.

[0041] As a preferred implementation manner of this solution, the separation assembly further includes a return spring 122, and the return spring 122 is arranged between the linear motion cylinder 106 and the connecting head 119.

[0042] The return spring 122 enables the connecting head 119 to quickly return to the initial position after the linear motion cylinder 106 finishes its action, providing a physical "memory" mechanism, enabling the system to start a new round of operations from the same state each time, and increasing the reliability and repeatability of the system.

[0043] As a preferred implementation manner of this solution, the bottom end of the cover plate 108 has a support wall 123, and the support wall 123 is inclined to gradually widen from top to bottom, so that the impurities moving onto the support wall 123 under the action of centrifugal force move down along the support wall 123 and concentrate.

[0044] In order to make it more convenient to concentrate and collect the solid impurities moving onto the support wall 123 during operation and reduce the possibility of diffusing into the liquid, the support wall 123 of this application is inclined, so that after the impurities move to contact the support wall 123, the centrifugal force will form a downward component force, enabling the heavier solid impurities to be concentrated and collected downward.

[0045] As a preferred embodiment of this solution, the cover plate 108 further has a placement cavity 124, which is located at the bottom of the support wall 123 and contacts the rotating chassis 111.

[0046] The placement cavity 124 is provided at the bottom of the cover plate 108, and the radius of the placement cavity 124 is greater than the radius of the support wall 123, so that the downward-moving fixed impurities can be concentrated in the placement cavity 124, further reducing the possibility of spreading into the liquid.

[0047] The separation assembly further includes a support ring 127, which is provided on the rotating chassis 111. A region for accommodating solid impurities can be formed between the support ring 127 and the placement cavity 124, so that when extracting the solution, the solid impurities do not spread into the region within the support ring 127 under the influence of gravity.

[0048] As a preferred embodiment of this solution, the separation assembly further includes a solid waste collection channel, which is provided outside the rotating chassis 111.

[0049] The solid waste collection channel includes a conical baffle 129, a discharge channel 130 and a cleaning head. The conical baffle 129 is provided outside the rotating chassis 111, the discharge channel 130 is provided at the bottom of the conical baffle 129, the cleaning head is rotatably provided on the conical baffle 129, and the cleaning head has a first cleaning position and a second cleaning position. When in the first cleaning position, it cleans the rotating chassis 111; when in the second cleaning position, it cleans the discharge channel 130.

[0050] The conical baffle 129 is located outside the rotating chassis 111, and its shape helps to guide the solid waste to move along a specific path, avoiding the random scattering or accumulation of waste in the system. This design not only improves the efficiency of waste collection but also reduces system failures caused by waste blockage. The discharge channel 130 is provided at the bottom of the conical baffle 129 for smoothly discharging the collected solid waste from the system for subsequent centralized treatment or disposal. To ensure the cleanliness and operating efficiency of the system, multiple cleaning heads are rotatably provided on the conical baffle 129. After preparation, the linear motion cylinder 106 drives the cover plate 108 to move upward, and the cleaning head moves to the first cleaning position so that it can be aligned with the rotating chassis 111 to spray liquid to clean the rotating chassis 111. Then the rotating chassis 111 rotates to drive the cleaned liquid and impurities to be thrown outwards onto the conical baffle 129 under the action of centrifugal force. After that, the cleaning head moves to the second position to rinse the conical baffle 129 to prevent pollution or equipment damage caused by waste residue. The design of the cleaning head enables them to flexibly adjust the angle and position as needed to achieve the best cleaning effect.

[0051] As a preferred embodiment of the present scheme, the cleaning head includes a cleaning head body 135, a triangular push block 136, a second spring 137, and a push rod 138. The cleaning head body 135 is rotatably set on the conical baffle 129 through a pin shaft; the triangular push block 136 is slidably set on the conical baffle 129 and is located on one side of the support wall 123; the push rod 138 is rotatably connected to the triangular push block 136 and the cleaning head body 135 through a pin shaft, and is located between the triangular push block 136 and the cleaning head body 135, and the second spring 137 is used to reset the triangular push block 136.

[0052] After the preparation is completed, the triangular push block 136 is installed in the groove opened on the conical baffle 129, and the cover plate 108 moves up so that it can contact the side of the triangular push block 136 through the support wall 123, thereby pushing the triangular push block 136 to slide, and the triangular push block 136 pushes the push rod 138 to move to drive the cleaning head body 135 to tilt to align with the rotating chassis 111, and then the cleaning head body 135 is started to spray the cleaning liquid to the rotating chassis 111, and then the rotating chassis 111 is started to rotate to throw the cleaning liquid onto the conical baffle 129 through centrifugal force, and along the conical baffle 1 29 flows downward, at this time, the cover plate 108 moves downward and closes with the rotating chassis 111, and the second spring 137 is fixed between the triangular push block 136 and the collecting shell 103 by welding or by setting a hook on the triangular push block 136 and the collecting shell 103. The triangular push block 136 is reset under the action of the second spring 137, thereby driving the cleaning head body 135 to align with the conical baffle 129, and starting the cleaning head body 135 to spray cleaning liquid to the conical baffle 129 to clean the conical baffle 129, so that the two structures can be cleaned by the same cleaning head, so that the cleaning effect is better.

[0053] Second embodiment

[0054] See also Figure 7 The present invention also provides a method for recycling germanium-containing solid waste, comprising:

[0055] S201 crushes the germanium-containing solid waste and dissolves it with an acid solution to obtain a leaching solution;

[0056] The solid waste containing germanium is sent to the crushing equipment for crushing to increase its surface area, which is convenient for the subsequent chemical reaction. The crushed material is then mixed with a specific proportion of acid solution and fully reacted under appropriate temperature and stirring conditions to dissolve the germanium and other soluble impurities in the acid solution to form a leachate containing germanium ions. This step is crucial to improving the recovery efficiency of germanium.

[0057] S202 Open the feed valve and send the leaching solution into the space between the rotating chassis 111 and the cover plate 108 through the feed pipe 109;

[0058] After the leaching process is completed, open the feed valve and use a pump or gravity to transport the prepared leaching solution through the feed pipe 109 into the enclosed space formed between the rotating chassis 111 and the cover plate 108 in the system. This step ensures that the leaching solution can accurately enter the predetermined area and prepares for the next separation operation.

[0059] S203 Start the rotating motor 112 to drive the rotating bottom plate to rotate at high speed, so that the leaching impurities move to the outer circle of the rotating chassis 111 under the centrifugal force to separate from the liquid;

[0060] Start the rotating motor 112 to drive the rotating chassis 111 to rotate at high speed. Due to the centrifugal force, the heavier impurities in the leaching solution will move to the outer circle of the rotating chassis 111 and deposit, while the solution containing germanium ions remains in the central part. This separation method based on density difference can effectively remove most of the insoluble impurities and significantly improve the purity of germanium.

[0061] S204 After separation, under the action of gravity, the impurities in the outer circle fall onto the rotating chassis 111, close the feed valve, open the discharge valve, and discharge the liquid containing germanium through the discharge pipe 110 into the storage tank 104;

[0062] When the impurities are successfully separated and deposited on the outer circle, they naturally fall onto the rotating chassis 111 under the action of gravity. At this time, close the feed valve to prevent new leaching solution from entering, and at the same time open the discharge valve to allow the solution containing germanium ions that has been preliminarily purified to flow into the storage tank 104 through the discharge pipe 110. In this process, accurately controlling the opening and closing time of the valve is the key to ensuring the quality of the final product.

[0063] S205 Use an organic solvent to extract the germanium-containing solution in the storage tank 104.

[0064] Use a specific organic solvent to extract the germanium-containing solution in the storage tank 104. Selecting a suitable organic solvent can optimize the extraction effect according to the difference in the distribution coefficient between germanium and other impurities. Through multiple extractions, the germanium element can be further purified to finally obtain a high-purity germanium product.

[0065] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A germanium-containing solid waste recycling production system, comprising a base, a support frame and a collection shell, wherein the support frame is fixedly connected to the base and is located on one side of the base, and the collection shell is arranged on the support frame, characterized in that: It also includes a material storage box and a separation component, which includes a linear motion cylinder, a rotating head, a cover plate, a feed pipe, a discharge pipe, a rotating chassis and a rotating motor. The rotating chassis is rotatably arranged in the collecting shell, and the output end of the rotating motor is connected to the rotating chassis. The linear motion cylinder is arranged on the top of the collecting shell, the rotating head is rotatably arranged on the output end of the linear motion cylinder, the cover plate is rotatably arranged on the rotating head, the feed pipe and the discharge pipe pass through the rotating head and are close to the rotating chassis, the feed pipe is connected to the material storage box, and a feed valve and a discharge valve are respectively arranged on the feed pipe and the discharge pipe.

2. A germanium-containing solid waste recovery production system as claimed in claim 1, characterized in that: The rotating head comprises a connecting head and a rotating ring. The connecting head has a flow hole and is connected to the output end of the linear motion cylinder. The rotating ring is rotatably arranged on the connecting head and connected to the cover plate.

3. A germanium-containing solid waste recovery production system as claimed in claim 2, characterized in that: The separation assembly further comprises a return spring, and the return spring is arranged between the linear motion cylinder and the connecting head.

4. A germanium-containing solid waste recovery production system as claimed in claim 3, characterized in that: The cover plate has a supporting wall, and the supporting wall is arranged obliquely so that impurities moved onto the supporting wall under the action of centrifugal force move downward along the supporting wall and are concentrated.

5. A germanium-containing solid waste recovery production system as claimed in claim 4, characterized in that: The cover plate also has a placement cavity, which is located at the bottom of the supporting wall and contacts the rotating chassis.

6. A germanium-containing solid waste recovery production system as claimed in claim 5, characterized in that: The separation assembly further comprises a support ring, and the support ring is arranged on the rotating chassis.

7. A germanium-containing solid waste recovery production system as claimed in claim 6, characterized in that: The separation assembly further comprises a solid waste collection channel, and the solid waste collection channel is arranged on the outer side of the rotating chassis.

8. A method for recycling germanium-containing solid waste, using a germanium-containing solid waste recycling production system according to any one of claims 1 to 7, characterized in that: The method comprises: crushing the germanium-containing solid waste and dissolving it with an acid solution to obtain a leaching solution; Open the feed valve and feed the leachate into the space between the rotating bottom plate and the cover plate through the feed pipe; The rotating motor is started to drive the rotating bottom plate to rotate at high speed, so that the leached impurities move to the outer ring of the rotating bottom plate under the centrifugal effect to separate from the liquid; After separation, the impurities in the outer ring fall onto the rotating chassis under the action of gravity, the feed valve is closed, the discharge valve is opened, and the liquid containing germanium is discharged into the storage box through the discharge pipe; The germanium-containing solution is extracted in a storage box using an organic solvent.

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