Pickling apparatus

Abstract

The utility model provides a pickling equipment, include: pickling tank is provided with import and export on pickling tank, import is located above export, filter tank is provided with filter plate in filter tank, filter tank includes first import, second import, first export and second export, first import and second import are located above filter plate, first export and second export are located below filter plate, acid storage tank is provided with import and export on acid storage tank, pickling tank and acid storage tank are connected through pipeline, and filter tank is connected between pickling tank and acid storage tank, wherein, the export of pickling tank is connected with the first import of filter tank, the first export of filter tank is connected with the import of acid storage tank, the export of acid storage tank is connected with the second import of filter tank, and the second export of filter tank is connected with the import of pickling tank, the pickling equipment provided by the utility model is convenient for the cleaning of impurity, is also favorable to the recycling use of acid liquid, and has reduced enterprise cost.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, and in particular to an acid pickling device. Background Technology

[0002] Pickling tanks are containers used for chemical treatment to remove rust, scale, and other impurities from the surfaces of various metal parts. In steel billet production, pickling tanks are necessary to clean the surface of the billets. For example, pickling tanks are commonly used for low-magnification testing of steel billets. The samples need to be placed in the pickling tank to react with acid. When the acid comes into contact with the steel billet, it corrodes away surface impurities and iron oxide scale. After prolonged testing, many corroded impurities will appear in the pickling tank. These impurities settle at the bottom, affecting the effectiveness of the acid solution and also affecting acid pump circulation and causing pipe blockage. Currently, the removal of these impurities mainly relies on manual cleaning. Manual cleaning is not only labor-intensive but also may not be completely effective, and it poses a serious threat to the health of operators. Especially since pickling tanks are commonly installed underground in low-magnification testing laboratories, operation is not only inconvenient but also dangerous.

[0003] This invention aims to provide an acid washing device that facilitates the removal of impurities. Utility Model Content

[0004] This invention aims to provide an acid washing device that facilitates the removal of impurities.

[0005] This utility model provides an acid pickling device, comprising: an acid pickling tank having an inlet and an outlet, the inlet being located above the outlet; a filter tank having a filter plate, the filter tank including a first inlet, a second inlet, a first outlet, and a second outlet, the first and second inlets being located above the filter plate, and the first and second outlets being located below the filter plate; and an acid storage tank having an inlet and an outlet, the acid pickling tank and the acid storage tank being connected by a pipeline, and the filter tank being connected between the acid pickling tank and the acid storage tank; wherein, the outlet of the acid pickling tank is connected to the first inlet of the filter tank, the first outlet of the filter tank is connected to the inlet of the acid storage tank, the outlet of the acid storage tank is connected to the second inlet of the filter tank, and the second outlet of the filter tank is connected to the inlet of the acid pickling tank.

[0006] Furthermore, a first shut-off valve and a first acid pump are connected between the outlet of the pickling tank and the first inlet of the filter tank; a second shut-off valve and a second acid pump are connected between the first outlet of the filter tank and the inlet of the acid storage tank; a third shut-off valve and a third acid pump are connected between the outlet of the acid storage tank and the second inlet of the filter tank; and a fourth shut-off valve and a fourth acid pump are connected between the second outlet of the filter tank and the inlet of the pickling tank.

[0007] Furthermore, an inclined filter screen is installed at the inlet of the pickling tank.

[0008] Furthermore, the acid storage tank is positioned lower than the pickling tank and the filter tank.

[0009] Furthermore, the pickling tank and filter tank are located above ground, while the acid storage tank is located below ground.

[0010] Furthermore, an air inflator is connected to the bottom of the acid storage tank, which inflates the bottom of the acid storage tank.

[0011] The pickling equipment provided by this utility model, through the setting of the filter tank, allows impurities to be concentrated, making it convenient to clean them; at the same time, the setting of the acid storage tank also facilitates the recycling of acid, reducing enterprise costs. Attached Figure Description

[0012] Figure 1 The diagram shown is a structural schematic of the pickling equipment according to an embodiment of the present invention.

[0013] Figure label: 1: Pickling tank; 11: Inlet; 12: Outlet; 13: Inclined filter screen; 2: Filter tank; 21: First inlet; 22: First outlet; 23: Second inlet; 24: Second outlet; 25: Filter plate; 3: Acid storage tank; 31: Inlet; 32: Outlet; 33: Gas filling pipe; 41: First shut-off valve; 42: Second shut-off valve; 43: Third shut-off valve; 44: Fourth shut-off valve; 51: First acid pump; 52: Second acid pump; 53: Third acid pump; 54: Fourth acid pump. Detailed Implementation

[0014] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0015] Figure 1 The diagram shown is a structural schematic of the pickling equipment according to an embodiment of this utility model. Figure 1As shown, this utility model embodiment provides an acid pickling device, including: an acid pickling tank 1, which is provided with an inlet 11 and an outlet 12, with the inlet 11 located above the outlet 12; a filter tank 2, which is provided with a filter plate 25, and the filter tank 2 includes a first inlet 21, a second inlet 23, a first outlet 22, and a second outlet 24, with the first inlet 21 and the second inlet 23 located above the filter plate 25, and the first outlet 22 and the second outlet 24 located below the filter plate 25; and an acid storage tank 3, which is provided with an inlet 31 and an outlet 32. The acid pickling tank 1 and the acid storage tank 3 are connected by a pipeline, and the filter tank 2 is connected between the acid pickling tank 1 and the acid storage tank 3; wherein, the outlet 12 of the acid pickling tank 1 is connected to the first inlet 21 of the filter tank 2, the first outlet 22 of the filter tank 2 is connected to the inlet 31 of the acid storage tank 3, the outlet 32 ​​of the acid storage tank 3 is connected to the second inlet 23 of the filter tank 2, and the second outlet 24 of the filter tank 2 is connected to the inlet 11 of the acid pickling tank 1.

[0016] In this embodiment of the invention, pickling tank 1 is used to pickle steel billets. After pickling, the acid in pickling tank 1 flows into filter tank 2 for filtration, and the filtered acid in filter tank 2 flows into acid storage tank 3. At this point, the impurities in the acid are mainly present in filter tank 2. Since the impurities are concentrated in filter tank 2, they can be easily cleaned, whether manually or by machine (vacuum adsorption, etc.). Pickling tank 1 can also be cleaned at the same time.

[0017] When pickling is required, the acid in the acid storage tank 3 first flows into the filter tank 2 for filtration, and the filtered acid then flows into the pickling tank 1. Therefore, the acid in the acid storage tank 3 undergoes filtration once more before reaching the pickling tank 1.

[0018] A first shut-off valve 41 and a first acid pump 51 are connected between the outlet 12 of the pickling tank 1 and the first inlet 21 of the filter tank 2. A second shut-off valve 42 and a second acid pump 52 are connected between the first outlet 22 of the filter tank 2 and the inlet 31 of the acid storage tank 3. A third shut-off valve 43 and a third acid pump 53 are connected between the outlet 32 ​​of the acid storage tank 3 and the second inlet 23 of the filter tank 2. A fourth shut-off valve 44 and a fourth acid pump 54 are connected between the second outlet 24 of the filter tank 2 and the inlet 11 of the pickling tank 1.

[0019] When acid needs to flow from pickling tank 1 to acid storage tank 3, the first shut-off valve 41, the first acid pump 51, the second shut-off valve 42, and the second acid pump 52 are opened, and the third shut-off valve 43, the third acid pump 53, the fourth shut-off valve 44, and the fourth acid pump 54 are closed; when acid needs to flow from acid storage tank 3 to pickling tank 1, the first shut-off valve 41, the first acid pump 51, the second shut-off valve 42, and the second acid pump 52 are closed, and the third shut-off valve 43, the third acid pump 53, the fourth shut-off valve 44, and the fourth acid pump 54 are opened.

[0020] A sloping filter screen 13 is installed at the inlet 11 of the pickling tank 1. The sloping filter screen 13 has a sloping shape and surrounds the inlet 11 of the pickling tank 1. When acid enters the pickling tank 1 from the filter tank 2, the acid can be filtered at the sloping filter screen 13, thereby further filtering the acid. Figure 1 As shown, the inclined filter screen 13 is hung on the edge of the pickling tank 1 via hooks, making it easy to disassemble and clean. The filter plate 25 can also be hung on the edge of the filter tank 2 via hooks, making it easy to disassemble and clean.

[0021] The acid storage tank 3 can be positioned lower than the pickling tank 1 and the filter tank 2. For example, Figure 1 As shown, pickling tank 1 and filter tank 2 are located above ground, while acid storage tank 3 is located below ground to save ground space.

[0022] Furthermore, such as Figure 1 As shown, an air inlet pipe 33 is connected to the bottom of the acid storage tank 3, which inflates the bottom of the acid storage tank 3. The acid in the acid storage tank 3 may still contain some impurities. However, the acid storage tank 3 is located underground, making cleaning inconvenient. Inflating the tank through the air inlet pipe 33 raises the impurities settled at the bottom of the acid storage tank 3, facilitating their filtration as they flow towards the filter tank 2.

[0023] The pickling equipment provided by this utility model, through the setting of the filter tank, allows impurities to be concentrated, making it convenient to clean them; at the same time, the setting of the acid storage tank also facilitates the recycling of acid, reducing enterprise costs.

[0024] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" and their orientation or positional relationships are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model.

[0025] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A pickling device, characterized in that, include Pickling tank, which has an inlet and an outlet, with the inlet located above the outlet; A filter tank is provided with a filter plate. The filter tank includes a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet and the second inlet are located above the filter plate, and the first outlet and the second outlet are located below the filter plate. An acid storage tank is equipped with an inlet and an outlet. The pickling tank is connected to the acid storage tank via a pipeline. A filter tank is connected between the pickling tank and the acid storage tank. The pickling tank outlet is connected to the first inlet of the filter tank, the first outlet of the filter tank is connected to the inlet of the acid storage tank, the outlet of the acid storage tank is connected to the second inlet of the filter tank, and the second outlet of the filter tank is connected to the inlet of the pickling tank.

2. The pickling equipment according to claim 1, characterized in that, A first shut-off valve and a first acid pump are connected between the outlet of the pickling tank and the first inlet of the filter tank. A second shut-off valve and a second acid pump are connected between the first outlet of the filter tank and the inlet of the acid storage tank. A third shut-off valve and a third acid pump are connected between the outlet of the acid storage tank and the second inlet of the filter tank. A fourth shut-off valve and a fourth acid pump are connected between the second outlet of the filter tank and the inlet of the pickling tank.

3. The pickling equipment according to claim 2, characterized in that, An inclined filter screen is installed at the inlet of the pickling tank.

4. The pickling equipment according to claim 1, characterized in that, The acid storage tank is positioned lower than the pickling tank and the filter tank.

5. The pickling equipment according to claim 4, characterized in that, Pickling tanks and filter tanks are located above ground, while acid storage tanks are located below ground.

6. The pickling equipment according to claim 2, characterized in that, An air inflator is connected to the bottom of the acid storage tank, which inflates the bottom of the tank.

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