Preposed pickling tank for hot galvanizing
By introducing baffles and a sediment storage structure into the pickling tank, the problem of having to stop operation to clean sediment in the pickling tank was solved, enabling online sediment cleaning and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
The existing pickling tanks need to be shut down when cleaning sediment, which affects production efficiency and increases costs.
Design a pre-pickling tank for hot-dip galvanizing, comprising a tank body, a guide plate, and a sediment storage structure. The guide plate guides the sediment to the storage structure, and the sediment is cleaned without shutting down the system.
This allows for the removal of sediment while the pickling tank is operating normally, avoiding production stoppages and improving pickling efficiency.
Smart Images
Figure CN224062903U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hot-dip galvanizing technology, specifically relating to pickling tanks, and more particularly to pre-pickling tanks for hot-dip galvanizing. Background Technology
[0002] Pickling is a widely used surface treatment method in many fields such as metal processing, machinery manufacturing, and the automotive industry. The main purpose of pickling is to remove impurities such as oxides, rust, and oil from metal surfaces to improve the quality and performance of metal products. As the core equipment in the pickling process, the pickling tank inevitably generates a large amount of waste residue during long-term use. If this waste residue is not removed in a timely and effective manner, it will have many adverse effects on the pickling effect and equipment performance.
[0003] In related technologies, sediments adhere to the bottom of the tank. Therefore, when it is necessary to clean the sediments and waste residue in the pickling tank, the entire pickling production line needs to be suspended during the cleaning process. Suspension of operation will seriously affect production efficiency and increase production and processing costs.
[0004] Therefore, how to solve the problem of needing to suspend operation when cleaning pickling tanks is an urgent technical problem to be solved in this field.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0006] This disclosure provides at least one pre-pickling tank for hot-dip galvanizing to solve the technical problem of needing to suspend operation of the pickling tank during cleaning.
[0007] In a first aspect, embodiments of this disclosure provide a pre-pickling tank for hot-dip galvanizing, comprising: a tank body having an inlet end and a outlet end; a guide plate installed on the bottom surface of the tank body, the top surface of the guide plate being an inclined surface sloping downwards from the inlet end to the outlet end; and a sediment storage structure disposed at the outlet end, having a spherical inlet and a outlet, the spherical inlet facing the interior of the tank body and communicating with the interior of the tank body, and the outlet facing the exterior of the tank body; wherein, sediment flows with the liquid along the guide plate from the inlet end to the outlet end, causing it to enter the sediment storage structure from the spherical inlet, and the outlet is configured to open to discharge the temporarily stored sediment.
[0008] In one optional embodiment, the precipitate storage structure includes a first hemispherical cover, which is rotatably mounted on the inner wall of the drain end, and the first hemispherical cover is provided with a plurality of first through holes; a second hemispherical cover is fitted around the outer periphery of the first hemispherical cover, and the second hemispherical cover is fixed on the inner wall of the drain end, and the second hemispherical cover is provided with a second through hole adapted to correspond to the first through hole cover; wherein, rotating the first hemispherical cover causes the center lines of the first through hole and the second through hole to coincide, forming a spherical inlet for the precipitate to flow in.
[0009] In one alternative embodiment, an extension pipe is provided at one end of the first hemispherical cover, the extension pipe extends to the outside of the pool body, and the sewage outlet is provided at the other end of the extension pipe; wherein, the extension pipe is suitable for temporarily storing sediment.
[0010] In one optional embodiment, a sealing plug is provided inside the drain outlet, with a portion of the sealing plug extending outside the extension tube. The sealing plug is made of fluororubber. The first base plate is rotated until the first through hole and the second through hole are misaligned, thereby closing the spherical inlet to allow the open drain outlet to discharge sediment.
[0011] In one optional embodiment, an acid nozzle is provided on the inlet end, and the acid nozzle sprays liquid in the direction of the outlet end.
[0012] Secondly, this disclosure also provides a pre-pickling tank for hot-dip galvanizing, comprising: a tank body having an inlet end and a outlet end, wherein an acid spray nozzle is provided on the inlet end, the spray of the acid spray nozzle being directed toward the outlet end; and a sediment storage structure disposed at the outlet end, the sediment storage structure having a spherical inlet and a outlet, the spherical inlet facing toward the interior of the tank body and communicating with the interior of the tank body, and the outlet facing toward the exterior of the tank body; wherein, sediment flows with the liquid from the inlet end to the outlet end, causing it to enter the sediment storage structure through the spherical inlet, until the outlet is configured to open to discharge the temporarily stored sediment.
[0013] In one optional embodiment, the precipitate storage structure includes a first hemispherical cover, which is rotatably mounted on the inner wall of the drain end, and the first hemispherical cover is provided with a plurality of first through holes; a second hemispherical cover is fitted around the outer periphery of the first hemispherical cover, and the second hemispherical cover is fixed on the inner wall of the drain end, and the second hemispherical cover is provided with a second through hole adapted to correspond to the first through hole cover; wherein, rotating the first hemispherical cover causes the center lines of the first through hole and the second through hole to coincide, forming a spherical inlet for the precipitate to flow in.
[0014] In one alternative embodiment, an extension pipe is provided at one end of the first hemispherical cover, the extension pipe extends to the outside of the pool body, and the sewage outlet is provided at the other end of the extension pipe; wherein, the extension pipe is suitable for temporarily storing sediment.
[0015] In one optional embodiment, a sealing plug is provided inside the drain outlet, with a portion of the sealing plug extending outside the extension tube. The sealing plug is made of fluororubber. The first base plate is rotated until the first through hole and the second through hole are misaligned, thereby closing the spherical inlet to allow the open drain outlet to discharge sediment.
[0016] In one optional embodiment, a guide plate is provided on the bottom surface of the pool body, and the top surface of the guide plate is an inclined surface that slopes downward from the liquid inlet end to the liquid outlet end; wherein, the sediment flows along the guide plate from the liquid inlet end to the liquid outlet end with the liquid.
[0017] The beneficial effects of this utility model are that it provides a pre-pickling tank for hot-dip galvanizing. By setting up a sediment storage structure and a guide plate, the sediment flows along the guide plate from the inlet end to the outlet end with the liquid during normal operation of the pickling tank. The sediment enters the sediment storage structure through the spherical inlet at the outlet end and is stored for a certain period of time. Then, the spherical inlet is closed and the outlet is opened to discharge the sediment. This achieves the effect of cleaning sediment while the pickling tank is running, avoiding the interruption of the pickling tank's operation and improving pickling efficiency.
[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 A perspective view of a pre-pickling tank for hot-dip galvanizing provided in an embodiment of this disclosure;
[0022] Figure 2 This is a partial perspective cross-sectional view of a pre-pickling tank for hot-dip galvanizing according to an embodiment of the present disclosure;
[0023] Figure 3 This is an exploded view of the precipitate storage structure of the injection head according to an embodiment of this disclosure.
[0024] In the picture:
[0025] 1. Pool body;
[0026] 2. Deflector plate;
[0027] 3. Sediment temporary storage structure; 31. First hemispherical cover; 32. Second hemispherical cover; 33. Extension tube; 34. Sealing plug; 35. First through hole; 36. Second through hole;
[0028] 4. Spherical sewage inlet;
[0029] 5. Sewage outlet;
[0030] 6. Acid spray nozzle. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0032] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0033] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0034] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0035] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0036] Research has revealed a drawback of existing technologies: in these technologies, sediment adheres to the bottom of the pickling tank. Therefore, when it is necessary to clean the waste residue in the pickling tank, the entire pickling production line must be shut down during the cleaning process. This shutdown will severely impact production efficiency and increase production and processing costs.
[0037] Therefore, how to solve the problem of needing to suspend operation when cleaning pickling tanks is an urgent technical problem to be solved in this field.
[0038] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.
[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0040] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0041] like Figures 1 to 3 As shown, some embodiments provide a pre-pickling tank for hot-dip galvanizing, including: a tank body 1, a guide plate 2, and a sediment storage structure 3. The guide plate 2 serves as the bottom plate of the tank body 1. The tank body 1 has two ends, namely an inlet end 11 and a outlet end 12. The guide plate 2 is installed on the bottom surface of the tank body 1, and the top surface of the guide plate 2 is an inclined surface that slopes downward from the inlet end 11 to the outlet end 12. The sediment storage structure 3 is located at the outlet end 12, which is the lower end where the liquid flows.
[0042] The sediment storage structure 3 has a spherical inlet 4 and a outlet 5. The spherical inlet 4 faces the inside of the tank 1 and is connected to the inside of the tank 1. The outlet 5 faces the outside of the tank 1. That is to say, the metal waste inside the tank 1 that flows with the acid will enter through the spherical inlet 4 and be temporarily stored in the sediment storage structure 3. Finally, it can be discharged through the outlet 5. The pickling operation inside the tank 1 can operate normally throughout the whole process.
[0043] Specifically, the precipitate flows along the guide plate 2 from the inlet end 11 to the outlet end 12 with the liquid, so that it enters the precipitate storage structure 3 through the spherical inlet 4. The outlet 5 is configured to open to discharge the temporarily stored precipitate. The precipitate storage structure 3 can be rotated along F1 to close the spherical inlet 4. After the spherical inlet 4 is closed, the acid cannot enter the precipitate storage structure 3. At this time, the outlet 5 can be opened to discharge the metal waste.
[0044] Please see Figure 2 and Figure 3 The following describes the composition of the sediment temporary storage structure 3. The sediment temporary storage structure 3 includes a first hemispherical cover 31, which is rotatably mounted on the inner wall of the drain end 12. The first hemispherical cover 31 is provided with a plurality of first through holes 35. A second hemispherical cover 32 is fitted around the outer periphery of the first hemispherical cover 31 and is fixed on the inner wall of the drain end 12. The second hemispherical cover 32 is provided with second through holes 36 that correspond to the first through holes 35. When the first hemispherical cover 31 is rotated, the center lines of the first through holes 35 and the second through holes 36 are aligned to form a spherical inlet 4 for sediment to flow in. When the first through holes 35 and the second through holes 36 are aligned or partially aligned, sediment can flow in. When the center lines of the first through holes 35 and the second through holes 36 are aligned, the area of the spherical inlet 4 is the largest.
[0045] In addition, an acid nozzle 6 is provided on the inlet end 11. The acid nozzle 6 sprays liquid towards the outlet end 12, which can provide the precipitate with the power to move towards the outlet end 12. In conjunction with the guide plate 2 with the inclined surface, it reduces the probability of precipitate accumulation and improves the efficiency of precipitate removal.
[0046] Please see Figure 2 and Figure 3An extension tube 33 is provided at one end of the first hemispherical cover 31. The extension tube 33 extends to the outside of the pool body 1. The extension tube 33 can rotate along F1 or the opposite direction of F1 with the first hemispherical cover 31. In the initial state, the drain port 5 at the bottom of the L-shaped extension tube 33 is tilted downward. After rotating in the opposite direction of F1 to close the spherical inlet port 4, the drain port 5 is parallel to the bottom surface, that is, the free end of the extension tube 33 is vertically downward. At this time, the sludge can be discharged by opening the drain port. The drain port 5 is located at the other end of the extension tube 33, that is, the drain port 5 is located at the free end of the extension tube 33. The opening and closing of the drain port 5 is achieved by the sealing plug 34. Specifically, the extension tube 33 is suitable for temporarily storing sludge. A sealing plug 34 is installed inside the drain outlet 5, and part of the sealing plug 34 extends outside the extension tube 33. The sealing plug 34 is made of fluororubber. The first base plate is rotated until the first through hole 35 and the second through hole 36 are misaligned, so that the spherical inlet 4 is closed, allowing the open drain outlet 5 to discharge the sediment.
[0047] Some embodiments also provide a pre-pickling tank for hot-dip galvanizing, comprising: a tank body 1 having an inlet end 11 and a outlet end 12, wherein an acid nozzle 6 is provided on the inlet end 11, and the acid nozzle 6 sprays liquid towards the outlet end 12. This can provide the precipitate with the power to move towards the outlet end 12, reduce the probability of precipitate accumulation, and improve the efficiency of precipitate removal.
[0048] The sediment storage structure 3 has a spherical inlet 4 and a outlet 5. The spherical inlet 4 faces the inside of the tank 1 and is connected to the inside of the tank 1. The outlet 5 faces the outside of the tank 1. That is to say, the metal waste inside the tank 1 that flows with the acid will enter through the spherical inlet 4 and be temporarily stored in the sediment storage structure 3. Finally, it can be discharged through the outlet 5. The pickling operation inside the tank 1 can operate normally throughout the whole process.
[0049] Specifically, the precipitate flows along the guide plate 2 from the inlet end 11 to the outlet end 12 with the liquid, so that it enters the precipitate storage structure 3 through the spherical inlet 4. The outlet 5 is configured to open to discharge the temporarily stored precipitate. The precipitate storage structure 3 can be rotated along F1 to close the spherical inlet 4. After the spherical inlet 4 is closed, the acid cannot enter the precipitate storage structure 3. At this time, the outlet 5 can be opened to discharge the metal waste.
[0050] Please see Figure 2 and Figure 3The following describes the composition of the sediment temporary storage structure 3. The sediment temporary storage structure 3 includes a first hemispherical cover 31, which is rotatably mounted on the inner wall of the drain end 12. The first hemispherical cover 31 is provided with a plurality of first through holes 35. A second hemispherical cover 32 is fitted around the outer periphery of the first hemispherical cover 31 and is fixed on the inner wall of the drain end 12. The second hemispherical cover 32 is provided with second through holes 36 that correspond to the first through holes 35. When the first hemispherical cover 31 is rotated, the center lines of the first through holes 35 and the second through holes 36 are aligned to form a spherical inlet 4 for sediment to flow in. When the first through holes 35 and the second through holes 36 are aligned or partially aligned, sediment can flow in. When the center lines of the first through holes 35 and the second through holes 36 are aligned, the area of the spherical inlet 4 is the largest.
[0051] In addition, an acid nozzle 6 is provided on the inlet end 11. The acid nozzle 6 sprays liquid towards the outlet end 12, which can provide the precipitate with the power to move towards the outlet end 12. In conjunction with the guide plate 2 with the inclined surface, it reduces the probability of precipitate accumulation and improves the efficiency of precipitate removal.
[0052] Please see Figure 2 and Figure 3 An extension tube 33 is provided at one end of the first hemispherical cover 31. The extension tube 33 extends to the outside of the pool body 1. The extension tube 33 can rotate along F1 or the opposite direction of F1 with the first hemispherical cover 31. In the initial state, the drain port 5 at the bottom of the L-shaped extension tube 33 is tilted downward. After rotating in the opposite direction of F1 to close the spherical inlet port 4, the drain port 5 is parallel to the bottom surface, that is, the free end of the extension tube 33 is vertically downward. At this time, the sludge can be discharged by opening the drain port. The drain port 5 is located at the other end of the extension tube 33, that is, the drain port 5 is located at the free end of the extension tube 33. The opening and closing of the drain port 5 is achieved by the sealing plug 34. Specifically, the extension tube 33 is suitable for temporarily storing sludge. A sealing plug 34 is installed inside the drain outlet 5, and part of the sealing plug 34 extends outside the extension tube 33. The sealing plug 34 is made of fluororubber. The first base plate is rotated until the first through hole 35 and the second through hole 36 are misaligned, so that the spherical inlet 4 is closed, allowing the open drain outlet 5 to discharge the sediment.
[0053] To reduce the probability of sediment accumulation, a guide plate 2 is provided on the bottom surface of the tank body 1. The top surface of the guide plate 2 is a downward inclined surface from the liquid inlet 11 to the liquid outlet 12. The sediment flows along the guide plate 2 from the liquid inlet 11 to the liquid outlet 12 with the liquid.
[0054] In summary, by setting up the sediment storage structure 3 and the guide plate 2, the sediment in the pickling tank is allowed to flow along the guide plate 2 from the inlet end to the outlet end 12 with the liquid during normal operation. It then enters the sediment storage structure 3 through the spherical inlet 4 at the outlet end 12. After being stored for a certain period of time, the spherical inlet 4 is closed and the outlet 5 is opened to discharge the sediment. This achieves the effect of cleaning the sediment while the pickling tank is running, avoiding the interruption of the pickling tank's operation and improving the pickling efficiency.
[0055] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.
[0056] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0057] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A pre-pickling tank for hot dip galvanizing, characterized by, It comprises: a pool body (1) having a liquid inlet end (11) and a liquid outlet end (12); a flow guide plate (2) installed on the bottom surface of the pool body (1), the top surface of the flow guide plate (2) being a downwardly inclined surface from the liquid inlet end (11) to the liquid outlet end (12); a sediment temporary storage structure (3) arranged at the liquid outlet end (12) and having a spherical sewage inlet (4) and a sewage outlet (5), the spherical sewage inlet (4) facing the inside of the pool body (1) and being in communication with the inside of the pool body (1), and the sewage outlet (5) facing the outside of the pool body (1); wherein the sediment flows along the flow guide plate (2) from the liquid inlet end (11) to the liquid outlet end (12), so that it enters the sediment temporary storage structure (3) from the spherical sewage inlet (4), and the sewage outlet (5) is configured to be opened to discharge the temporarily stored sediment.
2. The pre-washing tank for hot galvanizing according to claim 1, characterized in that: the sediment temporary storage structure (3) comprises a first half-spherical cover (31) rotatably installed on the inner side wall of the liquid outlet end (12), and a plurality of first through holes (35) are arranged on the first half-spherical cover (31); a second half-spherical cover (32) is sleeved on the outer periphery of the first half-spherical cover (31), and the second half-spherical cover (32) is fixed on the inner side wall of the liquid outlet end (12), and a second through hole (36) corresponding to the first through hole (35) is arranged on the second half-spherical cover (32); wherein the first half-spherical cover (31) is rotated so that the center lines of the first through hole (35) and the second through hole (36) coincide, and the spherical sewage inlet (4) is formed for the sediment to flow in.
3. The pre-washing tank for hot galvanizing according to claim 2, characterized in that: one end of the first half-spherical cover (31) is provided with an extension pipe (33) extending to the outside of the pool body (1), and the sewage outlet (5) is arranged on the other end of the extension pipe (33); wherein the extension pipe (33) is adapted to temporarily store the sediment.
4. The pre-washing tank for hot galvanizing according to claim 3, characterized in that: a sealing plug (34) is arranged in the sewage outlet (5), part of the sealing plug (34) extends to the outside of the extension pipe (33), and the sealing plug (34) is made of fluorine rubber; wherein the first half-spherical cover is rotated to be misaligned with the first through hole (35) and the second through hole (36), so that the spherical sewage inlet (4) is closed, and the sewage outlet (5) is opened to discharge the sediment.
5. The pre-washing tank for hot galvanizing according to any one of claims 1-4, characterized in that: an acid liquid spray head (6) is arranged on the liquid inlet end (11), and the liquid spray direction of the acid liquid spray head (6) is toward the liquid outlet end (12).
6. A pre-pickling tank for hot dip galvanizing, characterized by It comprises: a pool body (1) having a liquid inlet end (11) and a liquid outlet end (12), an acid liquid spray head (6) is arranged on the liquid inlet end (11), and the liquid spray direction of the acid liquid spray head (6) is toward the liquid outlet end (12); a sediment temporary storage structure (3) arranged at the liquid outlet end (12), the sediment temporary storage structure (3) having a spherical sewage inlet (4) and a sewage outlet (5), the spherical sewage inlet (4) facing the inside of the pool body (1) and being in communication with the inside of the pool body (1), and the sewage outlet (5) facing the outside of the pool body (1); Wherein, the precipitate flows from the liquid inlet end (11) to the liquid outlet end (12), so that it enters the precipitate temporary storage structure (3) from the spherical pollution inlet (4), and is discharged from the pollution outlet (5) which is configured to be opened.
7. The pre-pickling tank for hot galvanizing according to claim 6, characterized in that, The precipitate temporary storage structure (3) comprises a first half-spherical cover (31) which is rotatably installed on the inner side wall of the liquid outlet end (12), and a plurality of first through holes (35) are arranged on the first half-spherical cover (31); The first half-spherical cover (31) is sleeved with a second half-spherical cover (32), and the second half-spherical cover (32) is fixed on the inner side wall of the liquid outlet end (12), and a second through hole (36) corresponding to the first through hole (35) is arranged on the second half-spherical cover (32); Wherein, the first half-spherical cover (31) is rotated so that the center lines of the first through hole (35) and the second through hole (36) coincide, forming a spherical pollution inlet (4) for the flow of the precipitate.
8. The pre-pickling tank for hot galvanizing according to claim 7, characterized in that, One end of the first half-spherical cover (31) is provided with an extension pipe (33) which extends to the outside of the tank body (1), and the pollution outlet (5) is arranged on the other end of the extension pipe (33); Wherein, the extension pipe (33) is adapted to temporarily store the precipitate.
9. The pre-pickling tank for hot galvanizing according to claim 8, characterized in that, A sealing plug (34) is arranged in the pollution outlet (5), part of the sealing plug (34) extends to the outside of the extension pipe (33), and the sealing plug (34) is made of fluorine rubber; Wherein, the first bottom plate is rotated to misalign the first through hole (35) and the second through hole (36), so as to close the spherical pollution inlet (4) and discharge the precipitate from the opened pollution outlet (5).
10. The pre-pickling tank for hot galvanizing according to any one of claims 6-9, characterized in that, The bottom surface of the tank body (1) is provided with a flow guide plate (2), and the top surface of the flow guide plate (2) is a downward inclined surface from the liquid inlet end (11) to the liquid outlet end (12); Wherein, the precipitate flows along the flow guide plate (2) from the liquid inlet end (11) to the liquid outlet end (12).