Waste liquid automatic switching and discharging device and slicing system

Abstract

The utility model provides an automatic waste liquid switching and discharging device and a slicing system. The waste liquid automatic switching and discharging device comprises a liquid discharging main pipe, a cutting waste liquid discharging pipe, a first control valve, a cleaning waste liquid discharging pipe, a second control valve, a pH detection piece and a controller. One end of the drainage main pipe is communicated with the waste liquid cylinder. According to the automatic waste liquid switching and discharging device, the pH value of the cutting waste liquid is different from the pH value of the cleaning waste liquid, the pH value of the waste liquid discharged from the waste liquid cylinder is detected online through the pH detection piece, and the detection result is fed back to the controller; the controller can judge whether the waste liquid discharged from the waste liquid cylinder is the cutting waste liquid or the cleaning waste liquid according to the pH value of the waste liquid, and then controls the first control valve to be correspondingly opened or closed and the second control valve to be correspondingly closed or opened, so that the cutting waste liquid and the cleaning waste liquid are automatically, accurately and reliably discharged from the corresponding pipelines; the practicability of the waste liquid automatic switching and discharging device is improved.

Description

Technical Field

[0001] This utility model relates to the field of slicing technology, and in particular to an automatic waste liquid switching and discharge device and a slicing system. Background Technology

[0002] With the dwindling supply of non-renewable traditional energy sources, photovoltaic (PV) energy is gaining increasing attention, with monocrystalline silicon solar cells occupying a large market share due to their high cost-effectiveness. However, the PV wafer slicing industry is currently highly competitive, making it imperative to improve quality and reduce costs. Large-loop cutting significantly reduces costs, but to clean residual silicon powder from the machines, regular alkaline cleaning is necessary. If employees mistakenly discharge alkaline cleaning waste into the large-loop pipeline, the cutting fluid (i.e., coolant) will be contaminated. This can range from affecting cutting quality to requiring the entire large-loop system to be replaced, resulting in severe economic losses. Utility Model Content

[0003] Therefore, it is necessary to provide an automatic waste liquid switching and discharge device and slicing system to address the problem that when employees misoperate and discharge alkaline washing waste liquid into the main circulation pipeline during the use of existing slicing machines, the cutting fluid will be contaminated by the alkaline washing waste liquid. This may result in a minor impact on cutting quality or, in severe cases, the need to replace the entire main circulation cutting fluid, causing serious economic losses.

[0004] The technical solution is as follows:

[0005] On one hand, an automatic waste liquid switching and discharge device is provided, applied to a slicing system, the slicing system including a slicer equipped with a waste liquid tank, and the automatic waste liquid switching and discharge device comprising:

[0006] A main drain pipe, one end of which is connected to the waste liquid tank;

[0007] Cut the waste liquid discharge pipe, with one end connected to the other end of the main discharge pipe;

[0008] The first control valve is installed on the cutting waste liquid discharge pipe;

[0009] A waste liquid discharge pipe is provided, with one end of which is connected to the other end of the main discharge pipe.

[0010] The second control valve is installed on the cleaning waste liquid discharge pipe;

[0011] A pH sensor is installed on the main drain pipe and is used to detect the pH value of the waste liquid flowing through the main drain pipe.

[0012] The controller is communicatively connected to the first control valve, the second control valve, and the pH sensor. The controller is configured to control the first control valve to open and the second control valve to close when the pH value detected by the pH sensor is within a first preset range, and to control the first control valve to close and the second control valve to open when the pH value detected by the pH sensor is within a second preset range; the first preset range and the second preset range do not overlap.

[0013] The technical solution will be further explained below:

[0014] In one embodiment, the first preset range is set to be less than or equal to the boundary value, the second preset range is set to be greater than the boundary value, and the range of the boundary value is set to be greater than or equal to 6.0 and less than or equal to 6.8.

[0015] In one embodiment, the threshold value is set to 6.5.

[0016] In one embodiment, the automatic waste liquid switching discharge device further includes a third control valve, which is installed on the main discharge pipe and located between the waste liquid tank and the pH detection element.

[0017] In one embodiment, the waste liquid automatic switching discharge device further includes a cleaning liquid inlet pipe and a fourth control valve installed on the cleaning liquid inlet pipe. One end of the cleaning liquid inlet pipe is connected to the main discharge pipe and is located between the third control valve and the pH detection element.

[0018] In one embodiment, the controller is also communicatively connected to both the third control valve and the fourth control valve.

[0019] In one embodiment, the pH sensor and the controller are integrated to form a pH controller, which is mounted on the main drain pipe.

[0020] In one embodiment, the diameters of the main drain pipe, the cutting waste liquid drain pipe, and the cleaning waste liquid drain pipe are all set between 4 cm and 12 cm.

[0021] On the other hand, a slicing system is provided, including a slicer equipped with a waste liquid cylinder and the aforementioned automatic waste liquid switching and discharge device, wherein the waste liquid cylinder is connected to the end of the discharge main pipe away from the cutting waste liquid discharge pipe.

[0022] In one embodiment, the slicing system further includes a cutting fluid recovery device, which is disposed corresponding to the end of the cutting waste fluid discharge pipe away from the main discharge pipe, and is used to recover and recycle the cutting waste fluid.

[0023] The automatic waste liquid switching discharge device and slicing system in the above embodiments utilize the difference in pH values ​​between the cutting waste liquid and the cleaning waste liquid. A pH sensor is used to perform online pH value detection on the waste liquid discharged from the waste liquid tank. The detection result is fed back to the controller, allowing the controller to determine whether the waste liquid discharged from the waste liquid tank is cutting waste liquid or cleaning waste liquid based on its pH value. The controller then controls the first control valve to open or close accordingly, and the second control valve to close or open accordingly. This ensures that the cutting waste liquid and cleaning waste liquid are automatically, accurately, and reliably discharged from their respective pipelines. The cutting waste liquid is not contaminated by the cleaning waste liquid and can be recycled, avoiding serious economic losses due to employee misoperation and improving the practicality of the automatic waste liquid switching discharge device. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an automatic waste liquid switching discharge device according to one embodiment.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Automatic waste liquid switching and discharge device; 100. Main discharge pipe; 200. Cutting waste liquid discharge pipe; 300. First control valve; 400. Cleaning waste liquid discharge pipe; 500. Second control valve; 600. pH controller; 700. Third control valve; 800. Cleaning liquid inlet pipe; 900. Fourth control valve; 21. Waste liquid tank. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] like Figure 1As shown, in one embodiment, an automatic waste liquid switching and discharge device 10 is provided, applied to a slicing system, which includes a slicer equipped with a waste liquid tank 21. The automatic waste liquid switching and discharge device 10 includes a main discharge pipe 100, a cutting waste liquid discharge pipe 200, a first control valve 300, a cleaning waste liquid discharge pipe 400, a second control valve 500, a pH sensor, and a controller. One end of the main discharge pipe 100 is connected to the waste liquid tank 21. One end of the cutting waste liquid discharge pipe 200 is connected to the other end of the main discharge pipe 100. The first control valve 300 is installed on the cutting waste liquid discharge pipe 200. One end of the cleaning waste liquid discharge pipe 400 is connected to the other end of the main discharge pipe 100. The second control valve 500 is installed on the cleaning waste liquid discharge pipe 400. The pH sensor is installed on the main discharge pipe 100 and is used to detect the pH value of the waste liquid flowing through the main discharge pipe 100. The controller is communicatively connected to the first control valve 300, the second control valve 500, and the pH sensor. The controller is configured to open the first control valve 300 and close the second control valve 500 when the pH value detected by the pH sensor is within a first preset range, and to close the first control valve 300 and open the second control valve 500 when the pH value detected by the pH sensor is within a second preset range; the first preset range and the second preset range do not overlap.

[0031] In the above embodiment, the automatic waste liquid switching discharge device 10 utilizes the difference in pH value between the cutting waste liquid and the cleaning waste liquid. A pH sensor is used to perform online pH value detection on the waste liquid discharged from the waste liquid tank 21. The detection result is fed back to the controller, enabling the controller to determine whether the waste liquid discharged from the waste liquid tank 21 is cutting waste liquid or cleaning waste liquid based on its pH value. The controller then controls the first control valve 300 to open or close accordingly, and the second control valve 500 to close or open accordingly. This ensures that the cutting waste liquid and cleaning waste liquid are automatically, accurately, and reliably discharged from their respective pipelines. The cutting waste liquid is not contaminated by the cleaning waste liquid and can be recycled, avoiding serious economic losses due to employee misoperation and improving the practicality of the automatic waste liquid switching discharge device 10.

[0032] The main drain pipe 100, the cutting waste liquid drain pipe 200, and the cleaning waste liquid drain pipe 400 can all be made of alkali-resistant metal, alkali-resistant plastic, or other alkali-resistant materials. Specifically, in this embodiment, the diameters of the main drain pipe 100, the cutting waste liquid drain pipe 200, and the cleaning waste liquid drain pipe 400 are all set between 4cm and 12cm. This ensures that the waste liquid in the waste liquid tank 21 can be smoothly discharged through the automatic waste liquid switching and discharge device 10.

[0033] The pH detection element can be a pH meter, pH sensor, or other pH detection device. The controller can be any existing hardware structure capable of comparing numerical values ​​and outputting corresponding control signals. The controller can communicate with the first control valve 300, the second control valve 500, and the pH detection element via data cables, power lines, Bluetooth, wireless communication networks, or other means. The pH detection element and the controller can be integrated or separate. In this embodiment, the pH detection element and the controller are integrated to form a pH controller 600, which is installed on the main drain pipe 100. This results in a smaller pH controller 600 that can exchange information, improving the practicality of the automatic wastewater switching discharge device 10.

[0034] The values ​​of the first preset range and the second preset range can be flexibly adjusted according to actual usage needs.

[0035] Optionally, the first preset range is set to be less than or equal to the boundary value, the second preset range is set to be greater than the boundary value, and the boundary value is set to be greater than or equal to 6.0 and less than or equal to 6.8. Specifically, in this embodiment, the boundary value is set to 6.5.

[0036] It should be noted that the cutting wastewater is acidic, with a pH value generally less than 6.5. The alkaline washing wastewater from the slicer is alkaline, with a pH value definitely greater than 7.0.

[0037] Optionally, a threshold value can be preset within the controller. When the controller receives an input value, it compares the input value with the threshold value. If the input value is less than or equal to the threshold value, the controller outputs a first control signal. If the input value is greater than the threshold value, the controller outputs a second control signal.

[0038] Specifically, in this embodiment, a threshold value is pre-set within the controller. When the controller receives the pH value from the pH sensor, it compares the pH value with the threshold value. If the pH value is less than or equal to the threshold value, the controller outputs a first control signal, and the first control valve 300 opens accordingly, while the second control valve 500 remains closed. If the pH value is greater than the threshold value, the controller outputs a second control signal, and the first control valve 300 remains closed accordingly, while the second control valve 500 opens accordingly. The first control signal can be either a high-frequency signal or a low-frequency signal, and the second control signal can be either a high-frequency signal or a low-frequency signal.

[0039] like Figure 1As shown, in one embodiment, the automatic waste liquid switching and discharge device 10 further includes a third control valve 700, which is installed on the main discharge pipe 100 and located between the waste liquid tank 21 and the pH detection element. Thus, when the slicer is slicing or performing alkaline washing on the slicer, the third control valve 700 is closed, ensuring that the waste liquid tank 21 can collect waste liquid centrally. When the waste liquid tank 21 needs to discharge waste liquid, the third control valve 700 opens to facilitate the discharge of waste liquid to a preset position, improving the practicality of the automatic waste liquid switching and discharge device 10.

[0040] like Figure 1 As shown, the automatic waste liquid switching and discharge device 10 further includes a cleaning liquid inlet pipe 800 and a fourth control valve 900 installed on the cleaning liquid inlet pipe 800. One end of the cleaning liquid inlet pipe 800 is connected to the main discharge pipe 100 and is located between the third control valve 700 and the pH sensor. Thus, after each discharge of waste liquid from the waste liquid tank 21, the third control valve 700 closes, the fourth control valve 900 opens, and pure water is supplied to the cleaning liquid inlet pipe 800. The pure water enters the pH sensor to clean it, ensuring that the pH sensor can accurately detect the pH value of the next waste liquid discharged from the waste liquid tank 21, thereby improving the reliability of the automatic waste liquid switching and discharge device 10.

[0041] In this specific embodiment, the diameter of the cleaning fluid inlet pipe 800 is set between 4cm and 12cm.

[0042] It should be noted that the pH sensor becomes weakly acidic or weakly alkaline after being cleaned with pure water, and the amount is small. Therefore, the wastewater from cleaning the pH sensor can be discharged through either the wastewater drain pipe 200 or the cleaning wastewater drain pipe 400. Specifically, in this embodiment, the pH value of the wastewater from cleaning the pH sensor is within a second preset range (the cleaning wastewater includes alkaline washing wastewater and water washing wastewater, and the pH value of the water washing wastewater is generally greater than 6.5). After the pH sensor is cleaned with pure water, the pH sensor detects the pH value of the wastewater. The detection result is fed back to the controller, which controls the first control valve 300 to close and the second control valve 500 to open accordingly, allowing the wastewater to be discharged through the cleaning wastewater drain pipe 400.

[0043] Optionally, the controller is also communicatively connected to both the third control valve 700 and the fourth control valve 900. This improves the automation level of the automatic waste liquid switching and discharge device 10.

[0044] Specifically, in this embodiment, the first control valve 300, the second control valve 500, the third control valve 700, and the fourth control valve 700 are all solenoid valves. The pH controller 600 is communicatively connected to all four solenoid valves.

[0045] In one embodiment, a slicing system is provided, including a slicer with a waste liquid cylinder 21 and an automatic waste liquid switching and discharge device 10 as described in any of the above embodiments, wherein the waste liquid cylinder 21 is connected to the end of the discharge main pipe 100 away from the cutting waste liquid discharge pipe 200.

[0046] In the slicing system described above, the pH values ​​of the cutting waste liquid and the cleaning waste liquid are different. The pH value of the waste liquid discharged from the waste liquid tank 21 is detected online by a pH detection device. The detection result is fed back to the controller, which can determine whether the waste liquid discharged from the waste liquid tank 21 is cutting waste liquid or cleaning waste liquid based on the pH value of the waste liquid. Then, the controller controls the first control valve 300 to open or close accordingly, and the second control valve 500 to close or open accordingly. This ensures that the cutting waste liquid and the cleaning waste liquid are automatically, accurately, and reliably discharged from the corresponding pipelines. The cutting waste liquid is not contaminated by the cleaning waste liquid and can be recycled and reused. This avoids serious economic losses caused by employee misoperation and improves the practicality of the slicing system.

[0047] Optionally, the slicing system also includes a cutting fluid recovery device, which is correspondingly installed at the end of the cutting waste fluid drain pipe 200 away from the main drain pipe 100, and is used to recover and recycle the cutting waste fluid. In this way, the cutting fluid recovery device can recover the cutting waste fluid and provide cutting fluid to the slicer, enabling the cutting fluid to be recycled and reducing the slicing cost of the slicing system.

[0048] The cutting fluid recovery device can be any of the existing technologies for recovering cutting waste fluid.

[0049] Optionally, the slicing apparatus also includes a collection tank, which is positioned corresponding to the end of the cleaning waste liquid discharge pipe 400 furthest from the main discharge pipe 100. In this way, the collection tank can store the cleaning waste liquid for centralized treatment, improving the practicality of the slicing system.

[0050] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0055] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An automatic waste liquid switching discharge device applied to a slicing system, the slicing system comprising a slicer provided with a waste liquid cylinder (21), characterized in that, The automatic waste liquid switching discharge device (10) comprises: a main liquid discharge pipe (100) having one end in communication with the waste liquid cylinder (21); a waste liquid cutting discharge pipe (200) having one end in communication with the other end of the main liquid discharge pipe (100); a first control valve (300) installed on the waste liquid cutting discharge pipe (200); a waste liquid cleaning discharge pipe (400) having one end in communication with the other end of the main liquid discharge pipe (100); a second control valve (500) installed on the waste liquid cleaning discharge pipe (400); a pH detection member installed on the main liquid discharge pipe (100) and used for detecting the pH value of the waste liquid flowing through the main liquid discharge pipe (100); a controller in communication connection with the first control valve (300), the second control valve (500) and the pH detection member, the controller being configured to control the first control valve (300) to be opened and the second control valve (500) to be closed when the pH value detected by the pH detection member is within a first preset range, and to control the first control valve (300) to be closed and the second control valve (500) to be opened when the pH value detected by the pH detection member is within a second preset range; the first preset range and the second preset range have no intersection.

2. The automatic waste fluid switching and discharging device according to claim 1, characterized in that, The first preset range is set to be less than or equal to a demarcation value, and the second preset range is set to be greater than the demarcation value, and the demarcation value is set to be greater than or equal to 6.0 and less than or equal to 6.

8.

3. The automatic waste fluid switching and discharging device according to claim 2, characterized in that, The demarcation value is set to be 6.

5.

4. The automatic waste fluid switching and discharging device according to claim 1, characterized in that, The automatic waste liquid switching discharge device (10) further comprises a third control valve (700) installed on the main liquid discharge pipe (100) and located between the waste liquid cylinder (21) and the pH detection member.

5. The automatic waste fluid switching and discharging device according to claim 4, characterized in that, The automatic waste liquid switching discharge device (10) further comprises a cleaning liquid inlet pipe (800) and a fourth control valve (900) installed on the cleaning liquid inlet pipe (800), one end of the cleaning liquid inlet pipe (800) being in communication with the main liquid discharge pipe (100) and located between the third control valve (700) and the pH detection member.

6. The automatic waste fluid switching and discharging device according to claim 5, characterized in that, The controller is in communication connection with the third control valve (700) and the fourth control valve (900).

7. The automatic waste fluid switching and discharging device according to any one of claims 1 to 6, characterized in that, The pH detection member and the controller are integrally arranged to form a pH controller (600) installed on the main liquid discharge pipe (100).

8. The automatic waste fluid switching and discharging device according to any one of claims 1 to 6, characterized in that, The diameter of the main liquid discharge pipe (100), the diameter of the waste liquid cutting discharge pipe (200) and the diameter of the waste liquid cleaning discharge pipe (400) are all set to be between 4 cm and 12 cm.

9. A slicing system characterized by, The automatic waste liquid switching discharge device (10) according to any one of claims 1 to 8 is arranged in a microtome provided with a waste liquid cylinder (21), and the waste liquid cylinder (21) is in communication with the other end of the main liquid discharge pipe (100) away from the waste liquid cutting discharge pipe (200).

10. The slicing system of claim 9, wherein, The slicing system further comprises a cutting fluid recovery device, which is arranged corresponding to one end of the cutting waste fluid discharge pipe (200) away from the main fluid discharge pipe (100) and is used for recycling and utilizing the cutting waste fluid.

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