A zinc dross cleaning device

Abstract

The utility model relates to metal galvanization processing equipment technical field, the utility model provides a kind of zinc residue cleaning device, it includes pot body, gas distributor, gas generating device and suction residue device.Gas distributor is arranged at the bottom of pot body, and gas distributor is used to release gas to the inside of pot body;Gas generating device is arranged at the outside one side of pot body, and gas generating device is communicated with gas distributor, and gas generating device is used to deliver gas to gas distributor;Suction residue device is located at the outside of pot body, and suction residue device has suction residue pipe, and suction residue pipe extends to the inside of pot body and the suction residue mouth of suction residue pipe is contacted with zinc liquid liquid level in the inside of pot body;Gas distributor releases gas to the inside of pot body, and suction residue mouth is used to adsorb zinc residue on the zinc liquid liquid level in the inside of pot body due to air floatation effect floating to the inside of pot body.By the above technical scheme, the technical problem that zinc residue is not completely cleaned in the prior art is solved.

Description

Technical Field

[0001] The embodiments of this utility model relate to the technical field of galvanizing equipment, specifically to a zinc dross cleaning device. Background Technology

[0002] In cold-rolled galvanizing production, the thoroughness of zinc dross removal directly affects production quality and equipment condition. If zinc dross is not cleaned properly from the bottom and corners of the zinc pot, it will accumulate and form hard clumps. These residual zinc dross residues are easily disturbed during the flow of molten zinc and will adhere to the surface of the strip steel, causing coating defects such as zinc particles and incomplete coating, which seriously affect the appearance and performance of the product and increase the cost of subsequent finishing processes.

[0003] Traditional manual dredging methods are limited by operating space and tool flexibility, making it difficult to reach the bottom corners and complex structural areas of the zinc pot, resulting in a large amount of zinc dross residue. Especially when the zinc dross deposits are thick, manual dredging can only remove the surface scum, and the hardened zinc dross at the bottom cannot be completely removed, forming a vicious cycle of periodic incomplete cleaning. Long-term accumulation will aggravate uneven heating of the zinc pot and affect the temperature stability of the zinc liquid.

[0004] Existing technical solutions also have shortcomings in terms of thoroughness of cleaning: some cleaning devices have limited retrieval range or insufficient scraping force, making it difficult to effectively remove zinc slag adhering to the inner wall of the zinc pot. The residual zinc slag will continue to react with the zinc liquid to generate new slag, accelerating the zinc slag formation rate.

[0005] This incomplete cleaning not only necessitates frequent zinc dross removal, increasing production interruptions, but also reduces the yield of galvanized products due to the persistent effects of residual zinc dross, severely restricting the economic efficiency and stability of cold-rolled galvanizing production. Therefore, developing a system capable of efficient, comprehensive zinc dross removal, addressing the problem of incomplete cleaning in existing technologies, has become an urgent technical challenge. Utility Model Content

[0006] To overcome the above-mentioned defects, embodiments of this utility model provide a zinc dross cleaning device, which solves the technical problem of incomplete zinc dross cleaning in the prior art.

[0007] According to one aspect, at least one embodiment of the present invention provides a zinc dross cleaning device, comprising: Pot body; A gas distributor is disposed at the bottom of the pot body and is used to release gas into the pot body. A gas generating device is disposed on one side of the outside of the pot body, and the gas generating device is connected to the gas distributor. The gas generating device is used to supply gas to the gas distributor. A slag suction device is located outside the pot body. The slag suction device has a slag suction pipe that extends into the pot body and the slag suction port of the slag suction pipe is in contact with the zinc liquid surface inside the pot body. The gas distributor releases gas into the pot body, and the slag suction port is used to adsorb zinc slag that floats to the zinc liquid surface inside the pot body due to the air flotation effect.

[0008] Optionally, the gas generating device further includes: A gas preheater, which is disposed outside the pot body, is used to heat the gas; A gas temperature controller is installed on and connected to the gas preheater to control the temperature of the gas. The gas temperature controller is also connected to the gas distributor.

[0009] Optionally, there are several gas distributors arranged in parallel on the side of the bottom of the pot body. Each gas distributor has several exhaust holes facing the top of the pot body, and the gas distributor releases gas into the pot body through the exhaust holes.

[0010] Optionally, the slag suction device further includes: A negative pressure mechanism is provided outside the pot body and is connected to the slag suction pipe. The negative pressure mechanism is used to create a negative pressure environment inside the slag suction pipe.

[0011] Optionally, the negative pressure mechanism includes: A cooling box is located outside the pot body and is connected to the slag suction pipe. The cooling box is used to store zinc slag. A vacuum pump is installed on the cooling box and is connected to the cooling box. The vacuum pump is used to create a negative pressure environment inside the cooling box.

[0012] Optionally, the number of slag suction pipes is several, and each slag suction pipe includes: A heat-insulated slag suction pipe, wherein the slag suction port is opened on the heat-insulated slag suction pipe; A straw connector is disposed on the end of the insulated slag suction tube away from the slag suction port, and the straw connector is connected to the insulated slag suction tube; A heat-conducting hose, one end of which is connected to the suction connector and the other end of which is connected to the cooling box.

[0013] Optional, also includes: A heating layer is wrapped around the outer peripheral wall of the heat-conducting hose, and the heating layer is used to heat the heat-conducting hose.

[0014] Optional, also includes: A slide rail, which is horizontally positioned above the pot body; The slider is provided in multiple units, each of which is slidably disposed on the slide rail. Each slider corresponds one-to-one with a suction tube. The slider is fixedly connected to the suction tube connector and is used to drive the suction tube to slide horizontally.

[0015] Optional, also includes: The mounting platform is fixedly disposed above the pot body and is used to mount the slide rail; A driving component is disposed on the mounting platform and is used to drive the slider to slide.

[0016] Optionally, the driving component is a lead screw motor.

[0017] The beneficial effects of the embodiments of this utility model are as follows: In this invention, a gas distributor is installed at the bottom of the pot body to release gas into the pot. Simultaneously, a gas generator is installed on the outside of the pot body and connected to the gas distributor, allowing the gas generator to supply gas to the gas distributor. Combined with a slag suction device located outside the pot body and having a slag suction pipe extending into the pot body, the gas distributor releases gas into the pot body, and the slag suction port effectively adsorbs zinc slag that has floated to the surface of the zinc liquid due to the air flotation effect. This achieves effective separation and removal of zinc slag from the zinc liquid by utilizing the air flotation effect generated by the gas distributor within the pot body and then adsorbing the floating zinc slag through the slag suction pipe of the slag suction device. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the structure of a zinc slag cleaning device in one embodiment of the present invention; Figure 2 for Figure 1 A diagram showing the positional relationship between the galvanized steel sheet and the gas distributor in the embodiment; Figure 3 for Figure 1 The embodiment is shown in the structural diagram of the heat-conducting hose and the heating layer.

[0020] In the diagram: 1. Pot body, 2. Gas generator, 3. Slag suction device, 4. Gas preheater, 5. Gas temperature controller, 6. Gas distributor, 601. Exhaust port, 7. Negative pressure mechanism, 701. Cooling box, 702. Vacuum pump, 8. Slag suction pipe, 801. Insulated slag suction pipe, 802. Suction pipe connector, 803. Heat-conducting hose, 9. Slag suction port, 10. Heating layer, 11. Slide rail, 12. Slider, 13. Mounting platform, 14. Drive component, 15. Galvanized steel plate. Detailed Implementation

[0021] 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.

[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] like Figure 1 and Figure 2 As shown, this invention illustrates a zinc slag cleaning device according to one embodiment, comprising a pot body 1, a gas distributor 6, a gas generator 2, and a slag suction device 3. The pot body 1 is a container structure with an open top, used to store molten zinc. The gas distributor 6 is fixed to the inner wall of the bottom of the pot body 1, and has a gas flow channel inside. The gas generator 2 is installed on a ground support on the outside of the pot body 1 and is connected to the input end of the gas distributor 6 through a metal pipe. The main body of the slag suction device 3 is located outside the pot body 1, and one end of the slag suction pipe 8 extends through the edge of the pot body 1 into the interior, with the slag suction port 9 in contact with the surface of the molten zinc, and the other end connected to the power component of the slag suction device 3. The gas generated by the gas generator 2 is transported to the gas distributor 6 through a pipeline. The gas distributor 6 releases the gas into the zinc liquid at the bottom of the pot body 1. The gas rises under the action of buoyancy to form an air flotation, which carries the deposited zinc dross to the surface. At the same time, the dross suction device 3 adsorbs the zinc dross at the liquid surface through the dross suction port 9 of the dross suction pipe 8, so that the zinc dross is separated from the zinc liquid and transferred to the outside of the pot body 1.

[0028] The zinc dross is thoroughly cleaned through air flotation and adsorption. The gas distributor 6 is located on the bottom side of the pot body 1, directly agitating the deposited zinc dross without blowing it towards the galvanized steel plate 15 at the top center of the pot body 1, thus avoiding contamination. The gas output from the gas generator 2 has a temperature close to that of the molten zinc, preventing localized solidification and the formation of new dross due to low-temperature gas. The dross suction port 9 is in constant contact with the liquid surface, ensuring that floating zinc dross is removed immediately, breaking the cycle of repeated dross deposition. Optionally, the gas distributor 6 can be fixed to the bottom of the pot body 1 by welding or bolting. The gas source for the gas generator 2 can be nitrogen, as nitrogen is chemically stable and will not react with the molten zinc. Other inert gases, such as argon, can also achieve the same air flotation effect.

[0029] like Figure 1As shown, the gas generating device 2 includes a gas preheater 4 and a gas temperature controller 5. The gas preheater 4 is a tubular heating structure with multiple sets of heating tubes evenly arranged axially inside. The heating tubes are connected to an external power source, converting electrical energy into heat energy to heat the flowing gas. Its input end is connected to an external gas source pipeline via a flange, and a shut-off valve is installed on the gas source pipeline to control whether gas is introduced. The output end is connected to the input end of the gas temperature controller 5 via a pipeline. The gas temperature controller 5 has a built-in temperature sensor and a regulating valve. The temperature sensor is embedded in the inner wall of the pipe of the temperature controller along the gas flow direction, which can monitor the temperature of the gas flowing through in real time. The regulating valve is installed on the pipeline downstream of the temperature sensor, and the gas flow rate is controlled by the change of valve opening, thereby adjusting the gas temperature. The gas temperature controller 5 is installed on the output pipeline of the gas preheater 4, and its output end is connected to the gas distributor 6 via a pipeline. During operation, gas supplied by an external gas source first enters the gas preheater 4, where it is heated to a preset temperature range via internal heating tubes. It then flows into the gas temperature controller 5. A temperature sensor feeds back the detected gas temperature to the control system. If the temperature deviates from the preset range, the control system adjusts the valve opening, changing the gas flow rate to bring the temperature back to the preset value, ensuring a stable gas temperature entering the molten zinc. Through the initial heating by the gas preheater 4 and the precise control by the gas temperature controller 5, the impact of gas temperature fluctuations on the molten zinc is avoided.

[0030] like Figure 2 As shown, there can be two gas distributors 6, arranged in parallel on the side of the bottom of the pot body 1. Each gas distributor 6 is a long, hollow structure with several exhaust holes 601 evenly distributed along its length at the top. The diameter of the exhaust holes 601 is the same, the distance between adjacent holes is equal, and the opening direction is vertically upward. After being guided by the internal cavity of the gas distributor 6, the gas is released from each exhaust hole 601, forming multiple parallel upward airflows. These airflows are evenly distributed within the pot body 1, creating an upward lifting force on the zinc slag. Optionally, the exhaust holes 601 can also adopt an oblique opening design, with the opening direction facing the corner of the pot body 1. By adjusting the opening angle, the impact force on the corner of the pot body 1 is enhanced, further improving the disturbance effect on the zinc slag at the corner.

[0031] like Figure 1 As shown, the slag suction device 3 also includes a negative pressure mechanism 7, which is located outside the pot body 1 and connected to the end of the slag suction pipe 8 furthest from the slag suction port 9. When working, the negative pressure mechanism 7 creates a negative pressure environment inside the slag suction pipe 8. The negative pressure mechanism 7 provides a continuous and stable suction force to the slag suction port 9, which is more efficient than natural drainage. It can quickly adsorb zinc slag floating to the liquid surface, preventing the zinc slag from accumulating on the surface and then sinking again. Simultaneously, the negative pressure environment enhances the ability to peel off zinc slag adhering to the liquid surface, reducing zinc slag residue on the surface. The negative pressure mechanism 7, in conjunction with the slag suction pipe 8, improves the efficiency and thoroughness of slag suction, ensuring that floating zinc slag is removed promptly.

[0032] like Figure 1 As shown, the negative pressure mechanism 7 includes a cooling box 701 and a vacuum pump 702. The cooling box 701 is a sealed box connected to the slag suction pipe 8 via a pipe; the vacuum pump 702 is installed on the top of the cooling box 701, and its air extraction port is connected to the inside of the cooling box 701. During operation, the vacuum pump 702 draws air from the cooling box 701 to create a negative pressure, which generates suction in the slag suction pipe 8. The zinc slag enters the pipe through the slag suction port 9 and flows into the cooling box 701. The cooling box 701 can cool down the high-temperature zinc slag to prevent it from damaging subsequent equipment. A negative pressure fan can be used instead of the vacuum pump 702 to achieve the same negative pressure environment.

[0033] like Figure 1 As shown, there can be two slag suction pipes 8. Each slag suction pipe 8 consists of an insulated slag suction pipe 801, a suction pipe connector 802, and a heat-conducting hose 803. The insulated slag suction pipe 801 is a double-layer metal pipe, with the inner layer serving as the conveying channel and the outer layer filled with insulation material. The slag suction port 9 is located at its end. The suction pipe connector 802 is a T-junction structure, with one end welded to the insulated slag suction pipe 801 and the other two ends connected to the heat-conducting hose 803 and a fixing component, respectively. The heat-conducting hose 803 is a high-temperature resistant rubber tube, with one end sleeved on the suction pipe connector 802 and the other end connected to the feed inlet of the cooling box 701. The design of multiple slag suction pipes 8 expands the slag suction coverage area, while the insulation structure prevents the zinc slag from solidifying during transportation.

[0034] like Figure 3 As shown, it also includes a heating layer 10, which wraps around the outer peripheral wall of the heat-conducting hose 803 for heating the hose. The heating layer 10 maintains the temperature of the heat-conducting hose 803, preventing the zinc dross from cooling and solidifying inside the hose. When the heating layer 10 is working, it releases heat to heat the heat-conducting hose 803, keeping the internal temperature of the hose within the range required for the zinc dross to reach a molten state, preventing the dross from solidifying due to temperature drop as it flows through the hose. The heating layer 10, in conjunction with the heat-conducting hose 803, ensures the unobstructed flow of the dross suction channel, ensuring that the zinc dross can be smoothly transferred from the suction port 9 to the cooling box 701, reducing the risk of dross suction interruption due to pipe blockage. Alternatively, the heating layer 10 can be an energized coil.

[0035] like Figure 1As shown, it also includes a slide rail 11 and sliders 12. The slide rail 11 is horizontally positioned above the pot body 1; there are several sliders 12, all of which are slidably mounted on the slide rail 11, and each slider 12 corresponds one-to-one with a suction pipe 8. The sliders 12 are fixedly connected to the suction pipe connector 802 of the suction pipe 8, which can drive the suction pipe 8 to slide horizontally along the slide rail 11. The horizontal movement of the suction pipe 8 is achieved through the cooperation of the slide rail 11 and the sliders 12, expanding the range of motion of the suction port 9. The slide rail 11 provides a stable sliding track for the sliders 12, ensuring the smoothness of the horizontal movement of the suction pipe 8; the several sliders 12 correspond one-to-one with the suction pipes 8, which can drive each suction pipe 8 to move independently or synchronously, expanding the suction range of the suction port 9.

[0036] like Figure 1 As shown, it also includes a mounting platform 13 and a driving component 14. The mounting platform 13 is fixedly mounted above the pot body 1 and is used to mount the slide rail 11. The driving component 14 is mounted on the mounting platform 13 and connected to the slider 12. It is used to drive the slider 12 to slide along the slide rail 11. The slider 12 drives the slag suction pipe 8 to move, thereby adjusting the position of the slag suction port 9. The mounting platform 13 provides a stable mounting carrier for the slide rail 11 and the driving component 14, ensuring the structural stability of the entire sliding mechanism. The driving component 14 replaces the manual driving of the slider 12, improving the efficiency and accuracy of the movement of the slag suction pipe 8, and enabling precise control of the position of the slag suction port 9.

[0037] like Figure 1 As shown, the drive component 14 is a lead screw motor, which is mounted on the mounting platform 13. Its output end is connected to the slider 12, driving the slider 12 to slide along the slide rail 11. The lead screw motor converts the rotational motion into the linear motion of the slider 12, thus driving the slider 12. Alternatively, the drive component 14 can also be an electric actuator, hydraulic rod, etc.

[0038] 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 dross cleaning device, characterized in that, include: Pot body (1); A gas distributor (6) is disposed at the bottom of the pot body (1) and is used to release gas into the pot body (1); Gas generating device (2), the gas generating device (2) is disposed on the outside side of the pot body (1), the gas generating device (2) is connected to the gas distributor (6), and the gas generating device (2) is used to supply gas to the gas distributor (6); The slag suction device (3) is located outside the pot body (1). The slag suction device (3) has a slag suction pipe (8) that extends into the pot body (1) and the slag suction port (9) of the slag suction pipe (8) is in contact with the zinc liquid surface inside the pot body (1). The gas distributor (6) releases gas into the pot body (1). The slag suction port (9) is used to adsorb the zinc slag that floats to the zinc liquid surface inside the pot body (1) due to the air flotation effect.

2. The zinc dross cleaning device according to claim 1, characterized in that, The gas generating device (2) further includes: Gas preheater (4), which is disposed outside the pot body (1) and is used to heat gas; A gas temperature controller (5) is installed on and connected to the gas preheater (4) to control the temperature of the gas. The gas temperature controller (5) is connected to the gas distributor (6).

3. The zinc dross cleaning device according to claim 1, characterized in that, The number of gas distributors (6) is several, and the gas distributors (6) are arranged in parallel on the side of the bottom of the pot body (1). The gas distributors (6) have several exhaust holes (601) facing the top of the pot body (1). The gas distributors (6) release gas into the pot body (1) through the exhaust holes (601).

4. The zinc dross cleaning device according to claim 1, characterized in that, The slag suction device (3) also includes: The negative pressure mechanism (7) is located outside the pot body (1) and is connected to the slag suction pipe (8). The negative pressure mechanism (7) is used to make the slag suction pipe (8) be in a negative pressure environment.

5. A zinc dross cleaning device according to claim 4, characterized in that, The negative pressure mechanism (7) includes: Cooling box (701), the cooling box (701) is located outside the pot body (1), the cooling box (701) is connected to the slag suction pipe (8), and the cooling box (701) is used to store zinc slag; A vacuum pump (702) is installed on the cooling box (701) and is connected to the cooling box (701). The vacuum pump (702) is used to create a negative pressure environment inside the cooling box (701).

6. A zinc dross cleaning device according to claim 5, characterized in that, The number of the slag suction pipes (8) is several, and each slag suction pipe (8) includes: Insulated slag suction pipe (801), wherein the slag suction port (9) is opened on the insulated slag suction pipe (801); A straw connector (802) is disposed on the end of the heat-insulated slag suction pipe (801) away from the slag suction port (9), and the straw connector (802) is connected to the heat-insulated slag suction pipe (801); A heat-conducting hose (803) is provided, one end of which is connected to the suction connector (802), and the other end of which is connected to the cooling box (701).

7. A zinc dross cleaning device according to claim 6, characterized in that, Also includes: A heating layer (10) is wrapped around the outer peripheral wall of the heat-conducting hose (803) and is used to heat the heat-conducting hose (803).

8. A zinc dross cleaning device according to claim 6, characterized in that, Also includes: A slide rail (11) is horizontally positioned above the pot body (1); The slider (12) has several sliders, and the sliders (12) are slidably disposed on the slide rail (11). The sliders (12) correspond one-to-one with the suction pipes (8). The sliders (12) are fixedly connected to the suction pipe connector (802) and are used to drive the suction pipes (8) to slide horizontally.

9. A zinc dross cleaning device according to claim 8, characterized in that, Also includes: Mounting platform (13), which is fixedly installed above the pot body (1), is used to mount the slide rail (11). A drive unit (14) is disposed on the mounting platform (13) and is used to drive the slider (12) to slide.

10. A zinc dross cleaning device according to claim 9, characterized in that, The driving component (14) is a lead screw motor.

Images