Novel acid mist absorption system for acid tank of continuous pickling line of strip steel

Abstract

The acid mist absorption system of the acid tank of the novel strip steel continuous pickling line comprises a pickling tank, a pickling tank cover arranged on the top of the pickling tank, an annular water seal groove arranged on the outer wall of the pickling tank, an acid discharge channel arranged in the pickling tank cover, the pickling tank cover being arranged in the water seal layer of the annular water seal groove, an acid mist suction port arranged on the sidewall of the pickling tank and located at the bottom of the annular water seal groove, an anti-overflow pipe arranged on the top of the acid mist suction port, the anti-overflow pipe being arranged in the annular water seal groove and extending into the acid discharge channel, and a flange arranged on the bottom of the acid mist suction port. The acid discharge channel of the pickling tank cover is connected to the annular water seal groove, the annular water seal groove and the acid mist suction port are combined, the flange is welded on the bottom of the acid mist suction port, the acid mist suction port can be connected to the acid mist pipeline, the acid discharge channel is shortened, the risk caused by welding and weight imbalance is reduced, the damage probability is reduced, the cleaning of the pickling tank is not affected, and the safety and stability of the strip steel pickling line are greatly improved.

Description

Technical Field

[0001] This invention relates to the technical field of strip steel pickling operations, and more particularly to an acid mist absorption system for the acid tank of a novel continuous strip steel pickling line. Background Technology

[0002] In modern continuous strip steel pickling production lines, pickling tanks are crucial equipment for strip steel pickling, and the collection and treatment of acid mist from these tanks is of paramount importance, holding significant economic and social value.

[0003] The original pickling tank's acid mist outlet was led out from the pickling tank cover and inserted into the pickling mist outlet water seal. However, the pickling tank water seal had a separate branch, which made the weight of the pickling tank cover more unbalanced. It was easy to bump or even fall off when lifting and lowering it, which could easily cause acid mist to overflow. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide a novel acid mist absorption system for the acid tank of a continuous pickling line for strip steel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A new type of continuous pickling line for strip steel includes an acid mist absorption system for the acid tank. The top of the acid tank is equipped with an acid tank cover. The upper part of the outer wall of the acid tank is equipped with an annular water seal groove. An acid discharge channel is provided inside the acid tank cover. The bottom of the acid tank cover is set inside the water seal layer of the annular water seal groove. An acid mist suction port is provided on the side wall of the acid tank at the bottom of the annular water seal groove. An overflow prevention pipe is provided at the top of the acid mist suction port. The overflow prevention pipe is set inside the annular water seal groove and extends into the acid discharge channel. A flange is provided at the bottom of the acid mist suction port.

[0007] The beneficial effects of this invention are: This invention connects the acid discharge channel on the pickling tank cover to the annular water seal tank 3, combining the annular water seal tank and the acid mist suction port into one. The bottom of the acid mist suction port is welded with a flange, which can be connected to the acid mist pipeline. The acid discharge channel is shortened, reducing the risks caused by welding and weight imbalance, reducing the probability of damage, and not affecting the cleanliness of the pickling tank. This greatly improves the safety and stability of the steel strip pickling line. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of the present invention;

[0009] In the diagram: 1-Pickling tank; 2-Pickling tank cover; 3-Annular water seal tank; 4-Acid discharge channel; 5-Acid mist suction port; 6-Overflow prevention pipe; 7-Flange;

[0010] 201-Inner cover; 202-Outer cover; 203-Partition plate; 204-Through hole; 205-Arc-shaped guide plate; 206-Lifting hole;

[0011] 501 - Acid mist suction box; 502 - Acid mist suction pipe;

[0012] The following will describe in detail, with reference to the accompanying drawings, embodiments of the present invention. Detailed Implementation

[0013] The principles and features of the present invention are described below with reference to the accompanying drawings. The embodiments given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0014] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] like Figure 1 As shown, the acid mist absorption system of the acid tank in the new continuous pickling line for strip steel includes a pickling tank 1, a pickling tank cover 2 on the top of the pickling tank 1, an annular water seal groove 3 on the upper end of the outer wall of the pickling tank 1, an acid discharge channel 4 inside the pickling tank cover 2, and the bottom of the pickling tank cover 2 set inside the water seal layer of the annular water seal groove 3. An acid mist suction port 5 is provided on the side wall of the pickling tank 1 at the bottom of the annular water seal groove 3. An overflow prevention pipe 6 is provided at the top of the acid mist suction port 5. The overflow prevention pipe 6 is set inside the annular water seal groove 3 and extends into the interior of the acid discharge channel 4. A flange 7 is provided at the bottom of the acid mist suction port 5.

[0018] The pickling tank cover 2 includes an inner cover 201 and an outer cover 202. A partition 203 is provided between the middle of the inner cover 201 and the outer cover 202. The top of the inner cover 201 has a through hole 204 on one side of the partition 203. An arc-shaped guide plate 205 is provided in the cavity between the inner cover 201 and the outer cover 202 on the side where the through hole 204 is located. The acid discharge channel 4 is located between the arc-shaped guide plate 205 and the inner cover 201.

[0019] The outer cover 202 has lifting holes 206 on both sides of the top.

[0020] The acid mist suction port 5 includes an acid mist suction box 501 fixed on the side wall of the pickling tank 1. The top of the acid mist suction box 501 is an annular water seal groove 3 bottom plate, and the bottom of the acid mist suction box 501 is provided with an acid mist suction pipe 502. The flange 7 is located at the bottom of the acid mist suction pipe 502.

[0021] This invention connects the acid drainage channel 4 on the pickling tank cover 2 to the annular water seal tank 3, combining the annular water seal tank 3 and the acid mist suction port 5 into one. A flange 7 is welded to the bottom of the acid mist suction port 5, allowing connection to an acid mist pipeline. This invention shortens the acid drainage channel 4, reducing the risks associated with welding and weight imbalance, decreasing the probability of damage, and not affecting the cleanliness of the pickling tank 1, thus greatly improving the safety and stability of the steel strip pickling line.

[0022] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. An acid mist absorption system for the acid tank of a continuous pickling line for strip steel, characterized in that, The system includes a pickling tank (1), a pickling tank cover (2) on the top of the pickling tank (1), an annular water seal groove (3) on the upper end of the outer wall of the pickling tank (1), an acid discharge channel (4) inside the pickling tank cover (2), and the bottom of the pickling tank cover (2) is set in the water seal layer of the annular water seal groove (3). An acid mist suction port (5) is provided on the side wall of the pickling tank (1) at the bottom of the annular water seal groove (3). An overflow prevention pipe (6) is provided at the top of the acid mist suction port (5). The overflow prevention pipe (6) is set in the annular water seal groove (3) and extends into the acid discharge channel (4). A flange (7) is provided at the bottom of the acid mist suction port (5). The pickling tank cover (2) includes an inner cover (201) and an outer cover (202). A partition (203) is provided between the middle of the inner cover (201) and the outer cover (202). The top of the inner cover (201) has a through hole (204) on one side of the partition (203). An arc-shaped guide plate (205) is provided on the side of the through hole (204) in the cavity between the inner cover (201) and the outer cover (202). The acid discharge channel (4) is located between the arc-shaped guide plate (205) and the inner cover (201). The acid mist inlet (5) includes an acid mist box (501) fixed on the side wall of the pickling tank (1). The top of the acid mist box (501) is an annular water seal groove (3) bottom plate, and the bottom of the acid mist box (501) is provided with an acid mist pipe (502). The flange (7) is located at the bottom of the acid mist pipe (502).

2. The acid mist absorption system for the acid tank of a continuous pickling line for strip steel according to claim 1, characterized in that, The outer cover (202) has lifting holes (206) on both sides of the top.

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