Zinc liquid cleanliness detector

Abstract

The utility model relates to the technical field of molten metal processing equipment, and provides a molten zinc cleanliness detector, which comprises a molten zinc tank used for accommodating molten zinc, and a detector for detecting the cleanliness of the molten zinc, the rotating core shaft is rotationally arranged in the molten zinc tank, and a detection element is arranged on the rotating core shaft and used for detecting the particle concentration and the electric conductivity of impurities in the molten zinc; and the surface slag scraping assembly is arranged on the rotating mandrel and provided with a scraping part, and the scraping part is used for scraping impurities on the surface of the liquid zinc after being driven by the rotating mandrel to rotate. By means of the technical scheme, the rotating mandrel is integrated with the detection and slag scraping functions, and real-time detection and dynamic cleaning of the cleanliness of the zinc liquid are achieved. The technical problems that in the prior art, during zinc liquid treatment, it is difficult to directly observe impurities in zinc liquid manually, real-time and accurate control over the cleanliness of the zinc liquid is difficult to achieve, and therefore the zinc product quality and the production efficiency are affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of molten metal processing equipment technology, specifically to a zinc liquid cleanliness tester. Background Technology

[0002] In zinc smelting and the production of zinc-based alloys, the cleanliness of molten zinc plays a decisive role in product quality. Excessive impurities in molten zinc can severely affect the physical and chemical properties, as well as the surface quality of the final product. For example, in hot-dip galvanizing, impurities can lead to uneven zinc coating, reducing the corrosion resistance and aesthetics of the galvanized product; in zinc alloy casting, impurities can cause defects such as porosity and sand holes in the alloy casting, weakening its mechanical strength.

[0003] However, the detection and treatment of impurities inside molten zinc currently faces many challenges. On the one hand, because molten zinc is in a high-temperature liquid state, impurities inside it are difficult to observe directly by hand. Manual observation is not only limited by the dangers of the high-temperature environment, but also because the naked eye cannot penetrate the molten zinc to clearly identify the type, quantity, and distribution of internal impurities. This makes the assessment of the cleanliness of molten zinc lack accuracy and timeliness.

[0004] On the other hand, the commonly used timed slag removal method has significant drawbacks. Timed slag removal operates only according to a pre-set time interval, but in actual production, the rate at which impurities are generated in the zinc liquid is not constant. It is affected by various factors such as fluctuations in raw material quality, the operating status of production equipment, and adjustments to process parameters, making the generation of impurities uncertain. This means that timed slag removal may miss critical points where slag removal is needed, severely affecting the quality of the zinc liquid when impurities accumulate in large quantities without being removed in time; or it may perform slag removal before impurities have formed in large quantities, resulting in unnecessary waste of resources and reduced production efficiency.

[0005] In summary, existing detection and processing methods are insufficient to meet the requirements for precise control of zinc liquid cleanliness. There is an urgent need for a device that can detect zinc liquid cleanliness in real time and accurately in order to effectively solve the above problems and improve the quality and production efficiency of zinc products. Utility Model Content

[0006] To overcome the above-mentioned defects, this utility model provides a zinc liquid cleanliness detector, which solves the technical problem in related technologies that it is difficult to directly observe the impurities inside the zinc liquid manually during zinc liquid processing, making it difficult to achieve real-time and accurate control of the cleanliness of the zinc liquid, thus affecting the quality of zinc products and production efficiency.

[0007] According to one aspect, at least one embodiment of the present invention provides a zinc bath cleanliness tester, comprising:

[0008] Zinc bath, the zinc bath being used to contain molten zinc;

[0009] A rotating mandrel is rotatably mounted inside the zinc bath. The rotating mandrel is equipped with a detection element, which is used to detect the particle concentration and conductivity of impurities in the zinc bath.

[0010] A surface scraping assembly is provided on the rotating mandrel. The surface scraping assembly has a scraping part extending in the radial direction of rotation. The scraping part is used to scrape off impurities on the surface of the zinc liquid after being rotated by the rotating mandrel.

[0011] For example, at least one embodiment of this disclosure provides a zinc liquid cleanliness tester, wherein the zinc liquid tank is a cylindrical tank, the rotating spindle coincides with the axis of the zinc liquid tank, and an isolation cavity is provided inside the rotating spindle, the detection element is disposed in the isolation cavity, and the detection position of the detection element contacts the zinc liquid through the opening of the isolation cavity wall.

[0012] For example, at least one embodiment of this disclosure provides a zinc liquid cleanliness tester, wherein the surface slag scraping assembly includes:

[0013] A first scraper is slidably mounted on the rotating spindle, with its length direction along the radial direction of the rotating spindle, and the scraping portion disposed on the side of the first scraper along its length direction.

[0014] For example, at least one embodiment of this disclosure provides a zinc liquid cleanliness tester, wherein the first scraper also has a retention tank, the scraper is located on the side of the retention tank, and the retention tank is used to pre-store the zinc liquid surface impurities scraped off by the scraper.

[0015] For example, in at least one embodiment of this disclosure, a zinc liquid cleanliness detector is provided, wherein the surface slag scraping assembly further includes:

[0016] A first slag guide is disposed on the rotating spindle and adjacent to the first slag scraper. The first slag guide has a slag guide channel extending in the radial direction of rotation. The slag guide channel has an edge slag guide inlet along the radial direction of rotation of the first slag guide and an end slag guide outlet away from the axis of rotation. The edge slag guide inlet is used to align with the raised scraper and to receive impurities in the retention tank. The scraped impurities are discharged to the outside through the slag guide channel and the slag guide outlet in sequence.

[0017] For example, at least one embodiment of this disclosure provides a zinc liquid cleanliness tester, wherein the bottom surface of the slag guiding channel is an inclined surface facing the end slag guiding outlet, and further includes:

[0018] A scraper is slidably disposed within the slag guiding channel and keeps in contact with the bottom surface of the slag guiding channel. The scraper is used to scrape the residue on the bottom wall of the slag guiding channel to the end slag guiding outlet.

[0019] For example, at least one embodiment of this disclosure provides a zinc liquid cleanliness tester, wherein the first slag scraper further has a first pusher and a second pusher, both of which are edges along the length direction of the first slag scraper. The first pusher, the second pusher, and the scraper are arranged sequentially from top to bottom. The scraper has a pushed portion located within the gap between the first pusher and the second pusher. The first slag scraper is configured such that, after sliding upward, the second pusher slides against the pushed portion, causing the scraper to slide away from the end slag outlet; after sliding downward, the first pusher slides against the pushed portion, causing the scraper to slide closer to the end slag outlet.

[0020] For example, at least one embodiment of this disclosure provides a zinc liquid cleanliness tester, wherein the inner wall of the zinc liquid tank is provided with a first annular guide groove, a second annular guide groove and an inclined transition section, the first annular guide groove is located above the second annular guide groove, the first annular guide groove and the second annular guide groove are connected by the inclined transition section, the first slag scraper has a first sliding part, the first sliding part is slidably disposed in the first annular guide groove, the inclined transition section and the second annular guide groove in sequence, the first slag scraper is configured to be rotated by the rotating spindle, move up and down through the inclined transition section, and alternately slide in the first annular guide groove and the second annular guide groove.

[0021] For example, a zinc liquid cleanliness tester provided in at least one embodiment of this disclosure further includes:

[0022] A spiral guide channel is provided on the outer wall of the zinc liquid tank, and the end slag outlet leads to the spiral guide channel.

[0023] For example, a zinc liquid cleanliness tester provided in at least one embodiment of this disclosure further includes:

[0024] A rotation drive component is used to drive the rotating spindle to rotate alternately in both directions.

[0025] The beneficial effects of the embodiments of this utility model are as follows:

[0026] In this invention, a rotating mandrel is connected to the bottom of the zinc bath via bearings and is driven by an external motor. This drives the detection element to periodically detect different areas of the zinc bath, solving the problem of manual observation of impurities inside the zinc bath. The detection element is located in the middle of the rotating mandrel with the detection end facing outwards. During rotation, it comprehensively acquires data on the concentration of impurity particles and conductivity of the zinc bath, providing accurate data for judging the cleanliness of the zinc bath. The scraper of the surface scraping assembly is located at the top of the rotating mandrel, distributed above and below the detection element. When the rotating mandrel rotates, the scraper rotates synchronously, using a circular scraper to remove impurities from the surface of the zinc bath. The detection element and the surface scraping assembly are mounted on the rotating mandrel and rotated by the same drive device. Detection and scraping are performed simultaneously, enabling real-time monitoring of the zinc bath cleanliness and allowing operators to promptly perform bottom slag removal when the impurity concentration exceeds the standard, avoiding missing critical points during scheduled slag removal. The entire device integrates detection and scraping functions via the rotating mandrel. It has a compact structure, with all components working collaboratively to achieve real-time detection and dynamic cleaning of the zinc bath cleanliness, effectively improving the accuracy and automation level of zinc bath quality control. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a zinc liquid cleanliness tester in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 Another perspective structural diagram in the embodiment;

[0030] Figure 3 for Figure 2 A partially enlarged structural diagram of section A in the middle;

[0031] Figure 4 for Figure 1 A schematic diagram of the structure of the first slag scraper in the embodiment;

[0032] Figure 5 for Figure 1 A schematic diagram of the first slag guide component in the embodiment.

[0033] In the diagram: Zinc bath-1, first annular guide groove-101, second annular guide groove-102, inclined transition section-103, rotating spindle-2, isolation chamber-201, detection element-3, surface slag scraping assembly-4, scraper-401, first slag scraper-410, retention tank-411, first pusher-412, second pusher-413, first sliding part-414, first slag guide-5, slag guide channel-501, edge slag guide inlet-502, end slag guide outlet-503, scraper-6, pushed part-601, spiral guide groove-7. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0035] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0036] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] like Figures 1-5 As shown, this invention illustrates a zinc liquid cleanliness detector according to one embodiment. The zinc liquid tank 1 is cylindrical, with supporting legs at the bottom and an open top to accommodate molten zinc. A rotating spindle 2 extends along the central axis of the zinc liquid tank 1, with its lower end rotatably connected to the center of the bottom of the zinc liquid tank 1 via a bearing, and its upper end extending through the top of the zinc liquid tank 1 and connected to an external drive motor. The drive motor drives the rotating spindle 2 to rotate at a uniform and slow speed around its own axis. Multiple detection elements 3 are integrated and mounted on the rotating spindle 2, fixed in the middle region of the rotating spindle 2. The detection ends of each detection element 3 face radially outward from the rotating spindle 2 and extend into the zinc liquid. As the rotating spindle 2 rotates, the concentration of impurity particles and conductivity at different locations in the zinc liquid are detected in real time. The surface scraping assembly 4 includes an annular mounting bracket fixedly sleeved on the top of the rotating spindle 2. The scraper part 401 is an annular scraper adapted to the shape of the inner wall of the zinc liquid tank 1. Its inner edge is fixed to the outer wall of the rotating spindle 2, and the outer edge and the inner wall of the zinc liquid tank 1 are left with a gap for impurities to pass through. When the rotating spindle 2 rotates, the scraper part 401 rotates synchronously, scraping the impurities on the zinc liquid surface toward the inner wall of the zinc liquid tank 1.

[0041] The rotating spindle 2 is connected to the bottom of the zinc bath 1 via bearings and is driven by an external motor. This drives the detection element 3 to periodically detect different areas of the zinc bath, solving the problem of manually observing impurities inside the zinc bath. The detection element 3 is located in the middle of the rotating spindle 2 with its detection end facing outwards. During rotation, it comprehensively acquires data on the concentration of impurity particles and conductivity of the zinc bath, providing an accurate basis for judging the cleanliness of the zinc bath. The scraper part 401 of the surface scraping assembly 4 is located at the top of the rotating spindle 2, distributed vertically above and below the detection element 3. When the rotating spindle 2 rotates, the scraper part 401 rotates synchronously, using a circular scraper to remove impurities from the surface of the zinc bath. The detection element 3 and the surface scraping assembly 4 are mounted on the rotating spindle 2 and rotate through the same drive device. Detection and scraping are performed synchronously, enabling real-time monitoring of the cleanliness of the zinc bath and timely scraping when the impurity concentration exceeds the standard, avoiding missing critical points during scheduled slag removal. The scraper part 401 is designed with a certain gap between itself and the inner wall of the zinc bath 1 to ensure that it does not rigidly contact the tank wall when scraping impurities, ensuring stable operation of the device. The entire device integrates detection and slag scraping functions through the rotating spindle 2. It has a compact structure and all components work together to achieve real-time detection and dynamic cleaning of zinc liquid cleanliness, effectively improving the accuracy and automation level of zinc liquid quality control.

[0042] In some examples, the rotating mandrel 2 is a hollow cylinder with an internal isolation cavity 201 extending along its axial direction. The cavity wall of the isolation cavity 201 is formed by the inner wall of the rotating mandrel 2, with both ends closed. Multiple radially penetrating through holes are provided on the cavity wall. The detection element 3 is installed inside the isolation cavity 201, with its detection end passing through the through holes and facing radially outward from the rotating mandrel 2, for contact with the molten zinc to detect impurity particle concentration and conductivity. The lower end of the rotating mandrel 2 is rotatably connected to the bottom center of the molten zinc tank 1 via a bearing, and the upper end extends out from the top of the molten zinc tank 1 and is connected to a drive motor. The drive motor can drive the rotating mandrel 2 to rotate uniformly around its own axis. The surface scraping assembly 4 includes an annular mounting bracket fixedly sleeved on the top of the rotating spindle 2. The scraper part 401 is an annular scraper adapted to the shape of the inner wall of the zinc bath 1. Its inner edge is fixedly connected to the outer wall of the rotating spindle 2, and a gap is left between the outer edge and the inner wall of the zinc bath 1. When the rotating spindle 2 rotates, the scraper part 401 rotates synchronously with the rotating spindle 2 and scrapes off impurities on the surface of the zinc bath.

[0043] The zinc bath 1 adopts a cylindrical structure with the rotating spindle 2 coinciding with the axis, ensuring uniform force on the spindle 2 during rotation. This guarantees stable and uniform detection of the zinc bath circumferential area by the detection element 3, avoiding data deviation caused by spindle deflection. An isolation chamber 201 is provided inside the rotating spindle 2, where the detection element 3 is installed. Through through holes in the chamber wall, the detection end contacts the zinc bath, enabling real-time detection of zinc bath parameters. The isolation chamber 201 also provides physical protection for the detection element 3, reducing the direct impact of the high temperature and corrosive environment of the zinc bath on the element, thus extending its service life. The detection element 3 and the surface scraping assembly 4 are mounted together on the rotating spindle 2, which coincides with the axis of the zinc bath 1. They rotate synchronously via the same drive device, allowing the detection element 3 to periodically detect different locations in the zinc bath while the surface scraping assembly 4 simultaneously scrapes away impurities from the zinc bath surface. This collaborative mechanism of detection and cleaning improves the efficiency of zinc bath cleanliness detection and treatment. The closed design of the isolation chamber 201, combined with the through-hole structure, effectively prevents molten zinc from entering the rotating spindle 2 while ensuring the detection function, thus avoiding damage to the circuit or structure of the detection element 3 and improving the reliability and stability of the device operation.

[0044] In some examples, the detection element 3 is arranged horizontally radially in the middle of the rotating spindle 2, with its detection end facing radially outward and extending into the zinc liquid at a predetermined depth below the surface, which is greater than the conventional thickness of the surface impurity layer. The scraper 401 of the surface scraping assembly 4 is an annular scraper, the bottom of which is higher than the height of the detection end of the detection element 3. When the rotating spindle 2 rotates, the scraper 401 passes over the zinc liquid surface, scraping the floating impurities towards the inner wall of the zinc liquid tank 1, so that the detection area of ​​the detection element 3 is always below the clean liquid surface after scraping. The scraper 401 is used to guide the impurities scraped by the scraper 401 to the edge of the liquid surface to accumulate.

[0045] The detection element 3 is positioned at a preset depth below the liquid surface, and the bottom surface of the scraper 401 is higher than the detection end, creating a height difference between the scraping and detection. This ensures that the detection element 3 remains within the clean zinc liquid area after surface impurities have been removed during rotation, preventing floating impurities from directly contacting the detection end and interfering with the particle concentration and conductivity detection data. The guide ring plate, in conjunction with the rotation of the scraper 401, quickly guides surface impurities to the edge of the liquid surface, reducing the residence time of impurities above the detection area and further minimizing their impact on detection accuracy. The height difference between the detection element 3 and the surface scraping assembly 4, along with their synchronized circumferential movement, enables a continuous and orderly workflow for surface slag removal and monitoring. This ensures that the detection data accurately reflects the cleanliness of the zinc liquid itself, rather than the interference value from the surface impurity layer. This structural design, through optimized physical space layout, effectively solves the problem of surface impurities affecting monitoring accuracy without adding additional detection components, improving the reliability of the detection results and the practicality of the device.

[0046] In some examples, the first scraper 410 has a scraper 401 on its radially outer side facing the rotating spindle 2, and a radially extending retention groove 411 is formed on its opposite side facing away from the scraper 401. The retention groove 411 is a groove structure that runs through the length of the first scraper 410, with the groove opening facing upward and the bottom of the groove lower than the scraping height of the scraper 401, so that the impurities on the zinc liquid surface scraped by the scraper 401 can enter the retention groove 411 for temporary storage under the action of rotational centrifugal force. The first scraper 410 is slidably connected to the rotating spindle 2 via a guide rail, and its lifting drive mechanism, such as a screw motor, is set at the top of the rotating spindle 2. It can adjust the vertical position of the first scraper 410 according to the height of the zinc liquid level, so that the scraper 401 always keeps in contact with the liquid surface for scraping, while the retention groove 411 moves synchronously with the first scraper 410 to continuously collect the scraped impurities. The detection element 3 is installed in the middle of the rotating spindle 2, with its detection end located below the zinc liquid surface to avoid direct contact with surface impurities.

[0047] While the scraper 401 dynamically adjusts its scraping position according to the liquid level, the retention tank 411 collects the scraped impurities in real time, preventing the scraped impurities from diffusing again on the zinc liquid surface or settling back into the main body of the zinc liquid, ensuring that the detection area of ​​the detection element 3 is always in a clean environment. The radially through-type design of the retention tank 411, combined with the rotational motion of the rotating spindle 2, achieves automatic collection of impurities through centrifugal force, reducing the frequency of manual cleaning; its bottom is lower than the scraper 401, ensuring that impurities will not overflow again due to vibration or liquid level fluctuations during temporary storage, improving the thoroughness of impurity treatment. This structure, based on the adjustable scraping height, further improves the surface impurity collection function.

[0048] In some examples, the first slag guide 5 is fixedly disposed on the outer wall of the rotating spindle 2, and its axial position is adjacent to the first slag scraper 410. The two are arranged vertically along the axial direction of the rotating spindle 2. The first slag guide 5 has a long strip-shaped block structure, and its interior is connected in the radial direction of the rotating spindle 2 to form a slag guide channel 501. The edge slag guide inlet 502 of the slag guide channel 501 faces the storage groove 411 of the first slag scraper 410, and the end slag guide outlet 503 faces the inner wall of the zinc liquid tank 1. When the screw motor drives the first slag scraper 410 to rise axially along the rotating spindle 2 to a preset height, the groove opening of the storage groove 411 and the edge slag guide inlet 502 are completely aligned radially. During the rotation of the rotating spindle 2, the impurities temporarily stored in the storage groove 411 enter the slag guide channel 501 under the action of centrifugal force, and move along the slag guide channel 501 towards the end slag guide outlet 503, and are finally discharged to the impurity collection device outside the zinc liquid tank 1. The slag guiding channel 501 has a trapezoidal cross-sectional shape, with the channel width near the edge slag guiding inlet 502 being greater than the channel width near the end slag guiding outlet 503, to guide impurities to pass smoothly. The detection element 3 is still installed in the middle of the rotating spindle 2, with the detection end extending below the zinc liquid surface to detect cleanliness.

[0049] The adjacent arrangement of the first slag guide 5 and the first slag scraper 410, along with the radial layout of the slag guide channel 501, allows impurities in the storage tank 411 to be automatically guided into the slag guide channel 501 by rotational centrifugal force, forming a continuous processing flow of "slag scraping - slag storage - slag discharge," avoiding manual intervention and improving impurity removal efficiency. The alignable design of the edge slag guide inlet 502 with the storage tank 411 ensures that the first slag scraper 410 only opens the impurity discharge channel when it reaches the slag discharge position during lifting, preventing molten zinc from entering the slag guide channel 501 during normal slag scraping and ensuring the stability of the device operation. The trapezoidal cross-section of the slag guide channel 501 reduces the risk of impurities lingering in the channel, and, combined with the radially oriented design of the end slag guide outlet 503, allows impurities to be quickly discharged using rotational kinetic energy, avoiding secondary contamination of the molten zinc.

[0050] In some examples, the bottom surface of the slag guide channel 501 is a plane inclined radially toward the end slag guide outlet 503 to guide impurities to slide toward the outlet under gravity. The scraper 6 has a plate-like structure adapted to the cross-sectional shape of the slag guide channel 501, with its bottom surface abutting against the inclined bottom surface of the slag guide channel 501 and its two sides slidingly engaging with the inner wall of the slag guide channel 501. The scraper 6 engages with the first scraper 410 through a transmission structure. When the first scraper 410 moves up and down along the rotating spindle 2 or rotates with the rotating spindle 2, it drives the scraper 6 to move synchronously within the slag guide channel 501. The retention groove 411 of the first scraper 410 remains aligned with the edge slag guide inlet 502 of the slag guide channel 501, and the impurities enter the slag guide channel 501 and are then discharged with the assistance of the scraper 6.

[0051] The inclined bottom surface design of the slag guide channel 501, in conjunction with the sliding cooperation of the scraper 6, constitutes a dual slag discharge mechanism combining gravity guidance and mechanical scraping. The inclined bottom surface utilizes gravity to accelerate the movement of impurities towards the end slag guide outlet 503, reducing impurity retention within the channel. The scraper 6 is driven by the first scraper component 410, allowing it to automatically slide within the slag guide channel 501 during the operation of the first scraper component 410. This effectively removes residues adhering to the bottom wall due to stickiness or large particles, preventing blockage of the slag guide channel 501 and ensuring smooth impurity discharge. This design, based on the first scraper component 410 driving the scraper 6, eliminates the need for an additional power unit, simplifies the overall structure, and ensures that under different operating conditions, as long as the first scraper component 410 is operating, the scraper 6 can promptly clean the slag guide channel 501. This structure addresses the problem of impurity adhesion that may occur under high-temperature environments, improving the thoroughness of slag discharge.

[0052] In some examples, the first scraper 410 has a first pusher 412, a second pusher 413, and a scraper 401 arranged sequentially from top to bottom along its length side. All three are edge structures protruding from the side of the first scraper 410. The pushed part 601 of the scraper 6 is a protrusion on its top, the height of which is adapted to the height of the first pusher 412 and the second pusher 413. The first scraper 410 forms a sliding connection with the rotating spindle 2. When the first scraper 410 rises axially along the rotating spindle 2, the lower second pusher 413 first contacts the pushed part 601 of the scraper 6. As the first scraper 410 rises, the second pusher 413 pushes the pushed part 601, causing the scraper 6 to slide away from the end slag outlet 503. When the first scraper 410 falls axially along the rotating spindle 2, the upper first pusher 412 contacts the pushed part 601, pushing the scraper 6 to slide closer to the end slag outlet 503. The bottom surface of the slag channel 501 is an inclined surface facing the end slag outlet 503. The bottom surface of the scraper 6 is always in contact with the bottom wall of the slag channel 501, scraping away residual impurities on the bottom wall during the reciprocating sliding process. The first pusher 412 and the second pusher 413 on the first scraper 410 form a mechanical linkage structure with the pushed part 601 of the scraper 6. The lifting motion of the first scraper 410 drives the scraper 6 to slide back and forth in the slag guide channel 501. No additional power device is required, which simplifies the overall structural design.

[0053] In some examples, the inner wall of the zinc bath 1 is provided with a first annular guide groove 101 and a second annular guide groove 102. The first annular guide groove 101 is at a higher position, and the second annular guide groove 102 is below it, and the two are connected by an inclined transition section 103. The first sliding part 414 of the first slag scraper 410 is adapted to the two guide grooves. When the rotating spindle 2 rotates, the first slag scraper 410 rotates with it. The first sliding part 414 slides alternately between the first annular guide groove 101 and the second annular guide groove 102 via the inclined transition section 103. The three together form two closed guide grooves with a spiral structure connected at the center. The rotating spindle 2 is configured to rotate alternately in both directions, with each rotation angle ranging from 600° to 700°. For example, when the first sliding part 414 is initially located in the first annular guide groove 101, it rotates more than half a turn in one direction and then enters the second annular guide groove 102 through the inclined transition section 103. Conversely, after scraping slag in the second annular guide groove 102, it enters the first annular guide groove 101 through the inclined transition section 103 to achieve lifting and lowering. The slag outlet 503 at the end of the first slag guide 5 is connected to the spiral guide groove 7 on the outer wall of the zinc liquid tank 1. The spiral guide channel 7 is spirally arranged around the outer wall of the zinc liquid tank 1. Impurities are discharged from the end slag outlet 503 and then enter the spiral guide channel 7. The rotating spindle 2 is driven by a rotating drive component to achieve alternating bidirectional rotation. When the first slag scraper 410 is in the lower position of the second annular guide channel 102, the rotating spindle 2 drives the first slag scraper 410 to rotate. At this time, the scraper part 401 contacts the zinc liquid surface to perform slag scraping operation, and the retention tank 411 collects the scraped impurities. When the first slag scraper 410 enters the upper position of the first annular guide channel 101 through the inclined transition section 103, the rotating spindle 2 continues to rotate. During the rotation of the first slag scraper 410, the impurities in the retention tank 411 are aligned with the edge slag inlet 502 of the first slag guide 5. Under the action of centrifugal force, the impurities enter the slag guide channel 501 and are discharged into the spiral guide channel 7 through the end slag outlet 503, completing the slag discharge process. The detection element 3 also rotates bidirectionally with the rotating spindle 2 and continuously detects the cleanliness of the zinc liquid during the rotation process.

[0054] The guide groove on the inner wall of the zinc bath 1 cooperates with the first sliding part 414 of the first scraper 410 in conjunction with the inclined transition section 103. The first scraper 410 automatically rises and falls with the rotation of the rotating spindle 2, eliminating the need for an additional lifting drive device and simplifying the structure. The first scraper 410 slides alternately between the two guide grooves. In the lower position, the scraper part 401 can scrape slag from the zinc bath surface at different liquid levels, adapting to various working conditions and improving the comprehensiveness and effectiveness of scraping. In the upper position, it can precisely connect to the slag discharge structure, preparing for the slag discharge process. The spiral guide groove 7 is located on the outer wall of the zinc bath 1 and communicates with the end slag outlet 503. After impurities are discharged, they flow along the spiral guide groove 7. The spiral structure increases the impurity flow path, slows down the flow rate, facilitates further sedimentation and separation of impurities during flow, improves impurity collection efficiency, and avoids splashing of impurities due to high-speed discharge, improving the working environment and protecting surrounding equipment from impurity contamination. The rotating drive causes the rotating spindle 2 to rotate alternately in both directions, driving all components to rotate synchronously in both directions. When the first slag scraper 410 is in the lower position, it scrapes slag in both directions, which can clean impurities on the surface of the zinc liquid from different directions, preventing impurities from accumulating in a specific position under unidirectional scraping and improving the slag scraping effect; when in the upper position, it rotates in both directions to ensure that impurities in the storage tank 411 are smoothly discharged into the slag guide channel 501, thus improving the slag discharge process.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A zinc liquid cleanliness tester, characterized in that, include: Zinc bath (1), the zinc bath (1) being used to contain molten zinc; Rotating mandrel (2), the rotating mandrel (2) is rotatably disposed in the zinc bath (1), the rotating mandrel (2) is provided with a detection element (3), the detection element (3) is used to detect the particle concentration and conductivity of impurities in the zinc bath; A surface scraping assembly (4) is provided on the rotating spindle (2). The surface scraping assembly (4) has a scraper (401) extending in the radial direction of rotation. The scraper (401) is used to scrape off impurities on the surface of the zinc liquid after being rotated by the rotating spindle (2).

2. The zinc liquid cleanliness tester according to claim 1, characterized in that, The zinc bath (1) is a cylindrical tank. The rotating spindle (2) coincides with the axis of the zinc bath (1). The rotating spindle (2) is provided with an isolation cavity (201). The detection element (3) is set in the isolation cavity (201). The detection position of the detection element (3) contacts the zinc bath through the opening of the wall of the isolation cavity (201).

3. The zinc liquid cleanliness tester according to claim 1, characterized in that, The surface scraping assembly (4) includes: The first scraper (410) is slidably mounted on the rotating spindle (2). The length direction of the first scraper (410) is radial along the rotating spindle (2). The scraper (401) is mounted on the side of the first scraper (410) along the length direction.

4. The zinc liquid cleanliness tester according to claim 3, characterized in that, The first slag scraper (410) also has a retention groove (411), and the scraper (401) is located on the side of the retention groove (411). The retention groove (411) is used to pre-store the zinc liquid surface impurities scraped off by the scraper (401).

5. A zinc liquid cleanliness tester according to claim 4, characterized in that, The surface scraping assembly (4) also includes: The first slag guide (5) is disposed on the rotating spindle (2). The first slag guide (5) is disposed adjacent to the first slag scraper (410). The first slag guide (5) has a slag guide channel (501) extending in the rotational radial direction. The slag guide channel (501) has an edge slag guide inlet (502) in the rotational radial direction of the first slag guide (5) and an end slag guide outlet (503) away from the rotational axis. The edge slag guide inlet (502) is used to align with the raised scraper (401) and to receive impurities in the retention tank (411). The scraped impurities are discharged to the outside through the slag guide channel (501) and the slag guide outlet (503) in sequence.

6. A zinc liquid cleanliness tester according to claim 5, characterized in that, The bottom surface of the slag guiding channel (501) is an inclined surface facing the end slag guiding outlet (503), and also includes: The scraper (6) is slidably disposed in the slag guiding channel (501) and keeps in contact with the bottom surface of the slag guiding channel (501). The scraper (6) is used to scrape the residue on the bottom wall of the slag guiding channel (501) to the end slag guiding outlet (503).

7. A zinc liquid cleanliness tester according to claim 6, characterized in that, The first scraper (410) also has a first pusher (412) and a second pusher (413). The first pusher (412) and the second pusher (413) are both edges along the length of the first scraper (410). The first pusher (412), the second pusher (413) and the scraper (401) are arranged sequentially from top to bottom. The scraper (6) has a pushed portion (601). The pushed portion (601) is located between the first pusher (412) and the second pusher (413). Within the interval between the parts (413), the first scraper (410) is configured such that, after sliding upward, the second pusher (413) slides against the pushed part (601), causing the scraper (6) to slide away from the end slag outlet (503); after the first scraper (410) slides downward, the first pusher (412) slides against the pushed part (601), causing the scraper (6) to slide closer to the end slag outlet (503).

8. A zinc liquid cleanliness tester according to claim 6, characterized in that, The inner wall of the zinc bath (1) is provided with a first annular guide groove (101), a second annular guide groove (102) and an inclined transition section (103). The first annular guide groove (101) is located above the second annular guide groove (102). The first annular guide groove (101) and the second annular guide groove (102) are connected by the inclined transition section (103). The first slag scraper (410) has a first sliding part (414). The first sliding part (414) is slidably disposed in the first annular guide groove (101), the inclined transition section (103) and the second annular guide groove (102) in sequence. The first slag scraper (410) is configured to be rotated by the rotating spindle (2), and then move up and down through the inclined transition section (103) and alternately slide in the first annular guide groove (101) and the second annular guide groove (102).

9. A zinc liquid cleanliness tester according to claim 5, characterized in that, Also includes: Spiral guide channel (7) is provided on the outer wall of the zinc liquid tank (1), and the end slag outlet (503) leads to the spiral guide channel (7).

10. A zinc liquid cleanliness tester according to claim 1, characterized in that, Also includes: A rotation drive is used to drive the rotation spindle (2) to rotate alternately in both directions.

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