Waste acid solution impurity precipitate cleaning device

Abstract

The utility model relates to a waste acid liquid impurity sediment cleaning device which comprises a box body, a liquid inlet pipe and a liquid outlet pipe, and at least two partition plates are vertically fixed at the bottom in the box body at intervals; the heights of the at least two partition plates are sequentially increased from one end of the box body to the other end of the box body; a connecting plate is horizontally connected between every two adjacent partition plates. The liquid inlet pipe and the liquid outlet pipe are respectively communicated with two ends of the box body; the liquid inlet pipe is arranged at one end close to the lower partition plate; and the liquid outlet pipe is arranged at one end close to the higher partition plate. The waste acid liquid containing impurities passes through the box body in a step climbing mode through the partition plates and the connecting plates, the waste acid liquid is blocked and buffered through the multiple partition plates, the impurities in the waste acid liquid can be precipitated step by step conveniently, and hidden danger risks such as pipe blockage and reduction of the effective sectional area of the pipe diameter caused by precipitation and crystallization of the impurities in the waste acid liquid are reduced; the maintenance frequency of maintenance personnel in an acid environment is reduced, and the occupational hazard degree is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cold rolling pickling process, and particularly relates to a waste acid liquid impurity precipitation cleaning device. Background Art

[0002] The waste acid liquid generated after the cold-rolled strip is pickled contains a large amount of impurities such as iron oxide and silicon. It is easy to precipitate and crystallize during the transportation process of the waste acid pipeline, which reduces the effective cross-sectional area of ​​the pipeline and even blocks the pipeline. The current methods for cleaning the crystal blockage of the waste acid pipeline are: one is to use strong alkali to backwash the waste acid pipeline, but the strong alkali can only clean the acid liquid, and the cleaning effect on iron, silicon, etc. is not good; the second is to manually dismantle the pipeline and clean the clogged crystals, but the maintenance efficiency is low and the cleaning time is long. Utility Model Content

[0003] The utility model aims to provide a waste acid liquid impurity precipitation and cleaning device, which can precipitate impurities in the waste acid liquid and facilitate regular cleaning by maintenance personnel.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is a waste acid liquid impurity precipitation cleaning device, including a box body, a liquid inlet pipe and a liquid outlet pipe.

[0005] At least two partitions are fixed vertically at intervals on the bottom of the box body; the heights of the at least two partitions increase from one end of the box body to the other end; and connecting plates are horizontally connected between adjacent partitions;

[0006] The liquid inlet pipe and the liquid outlet pipe are respectively connected to the two ends of the box body; the liquid inlet pipe is arranged at one end close to the lower partition; the liquid outlet pipe is arranged at one end close to the higher partition.

[0007] Preferably, it further comprises a side plate, one side of the box body is provided with an opening; a first flange is provided on the opening; and a second flange matching with the first flange is provided on the side plate.

[0008] Preferably, valves are installed on both the liquid inlet pipe and the liquid outlet pipe.

[0009] Preferably, an inclined guide plate is welded between the side of the box body close to the liquid inlet pipe and the lower partition plate; the lower end of the inclined guide plate corresponds to the side plate.

[0010] Preferably, a support plate is provided on a side of the higher partition away from the lower partition; the support plate is arranged obliquely; one end of the support plate is welded and fixed to the higher partition, and the other end is welded and fixed to the box body.

[0011] The utility model is a waste acid liquid impurity precipitation cleaning device, which has the following advantages compared with the prior art:

[0012] (1) Through at least two partitions with successively increasing heights and connecting plates between adjacent partitions, the waste acid liquid containing impurities passes through the box body in the form of climbing steps. The waste acid liquid is blocked and buffered by multiple partitions, which facilitates the gradual precipitation of impurities therein;

[0013] (2) The impurities blocked by the lower partition are concentrated by the inclined guide plate to facilitate cleaning, and the support plate is used to prevent the multiple partitions from shifting under the scouring of the waste acid solution, thereby strengthening the fixation of the multiple partitions;

[0014] (3) Simple design and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the internal structure of the box;

[0016] Figure 2 It is a schematic diagram of the liquid flow inside the box;

[0017] Figure 3 This is a structural diagram of the side panel installed on one side of the box. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figure 1 and Figure 2 As shown, a waste acid liquid impurity precipitation cleaning device comprises a housing 1, a liquid inlet pipe 2 and a liquid outlet pipe 3.

[0020] At least two partitions 11 are fixed vertically at intervals at the bottom of the box 1; the heights of the at least two partitions 11 are successively increased from one end of the box 1 to the other end; connecting plates 12 are horizontally connected between adjacent partitions 11, so that the waste acid liquid containing impurities passes through the box 1 in the form of climbing steps, and the waste acid liquid is blocked and buffered by multiple partitions 11, which facilitates the gradual precipitation of impurities therein;

[0021] The liquid inlet pipe 2 and the liquid outlet pipe 3 are respectively connected to the two ends of the box body 1; the liquid inlet pipe 2 is arranged at one end close to the lower partition 11; the liquid outlet pipe 3 is arranged at one end close to the higher partition 11, and the box body 1 is installed on the waste acid pipeline through the liquid inlet pipe 2 and the liquid outlet pipe 3, and the waste acid liquid in the waste acid pipeline enters the box body 1 from the liquid inlet pipe 2, and then flows into the waste acid pipeline from the liquid outlet pipe 3.

[0022] In this embodiment, Figure 3As shown, it also includes a side panel 4, and an opening is opened on one side of the box body 1; a first flange 13 is provided on the opening; a second flange matching the first flange 13 is provided on the side panel 4, and the side panel 4 is connected to the box body 1 through the first flange 13 and the second flange. Inspection and maintenance personnel regularly dismantle the side panel 4, clean up the deposits on the bottom plate and corners of the box body 1, and reinstall the side panel 4 after cleaning to resume equipment operation.

[0023] In this embodiment, Figure 1 and Figure 2 As shown, valves 5 are installed on the liquid inlet pipe 2 and the liquid outlet pipe 3, preferably ball valves, and the waste acid liquid entering the box body 1 is controlled by the valve 5, so as to facilitate the cleaning of the box body 1.

[0024] In this embodiment, an inclined guide plate 14 is welded between the side of the box body 1 close to the liquid inlet pipe 2 and the lower partition 11; the lower end of the inclined guide plate 14 corresponds to the side plate 4. After the waste acid liquid enters the box body 1, the lower partition 11 blocks the waste acid liquid for the first time, and a large number of impurities are precipitated. The impurities blocked by the lower partition 11 are concentrated by the inclined guide plate 14, which is convenient for cleaning. Before the inspection and maintenance personnel remove the side plate 4, they first move the collection cart to the bottom of the box body 1 and remove the side plate 4. The impurities on the inclined guide plate 14 automatically fall into the collection cart, and the inspection and maintenance personnel clean the impurities and waste acid liquid remaining on the connecting plate 12, the partition 11 or the inclined guide plate 14.

[0025] In this embodiment, a support plate 15 is provided on the side of the higher partition 11 away from the lower partition 11; the support plate 15 is arranged at an angle; one end of the support plate 15 is welded and fixed to the higher partition 11, and the other end is welded and fixed to the box body 1. The support plate 15 prevents the multiple partitions 11 from shifting under the scouring of the waste acid liquid, thereby strengthening the fixation of the multiple partitions 11.

[0026] The method of using the utility model is as follows: during the inspection and maintenance process, the valve 5 on the liquid inlet pipe 2 is first closed, and after the waste acid liquid in the box body 1 is extracted by the liquid extraction pump of the waste acid pipeline, the valve 5 on the liquid outlet pipe 3 is closed, and at the same time, the collection trolley is moved to the bottom of the box body 1, the bolts on the second flange are removed, the side plate 4 is removed, and the impurities on the inclined guide plate 14 automatically fall into the collection trolley. The inspection and maintenance personnel clean the impurities and waste acid liquid remaining on the connecting plate 12, the partition plate 11 or the inclined guide plate 14, and after cleaning, the side plate 4 is reinstalled and the two valves 5 are opened.

Claims

1. A waste acid liquid impurity precipitation cleaning device, characterized in that: It comprises a box body (1), a liquid inlet pipe (2) and a liquid outlet pipe (3), At least two partitions (11) are fixed vertically at intervals on the bottom of the box body (1); the heights of the at least two partitions (11) increase in sequence from one end of the box body (1) to the other end; and connecting plates (12) are horizontally connected between adjacent partitions (11); The liquid inlet pipe (2) and the liquid outlet pipe (3) are respectively connected to the two ends of the box body (1); the liquid inlet pipe (2) is arranged at one end close to the lower partition (11); and the liquid outlet pipe (3) is arranged at one end close to the upper partition (11).

2. The waste acid liquid impurity precipitation and cleaning device according to claim 1, characterized in that: It also comprises a side plate (4), one side of the box body (1) is provided with an opening; the opening is provided with a first flange (13); the side plate (4) is provided with a second flange matching the first flange (13).

3. The waste acid liquid impurity precipitation and cleaning device according to claim 1, characterized in that: Valves (5) are installed on both the liquid inlet pipe (2) and the liquid outlet pipe (3).

4. The waste acid liquid impurity precipitation and cleaning device according to claim 2, characterized in that: An inclined guide plate (14) is welded between the side of the box body (1) close to the liquid inlet pipe (2) and the lower partition plate (11); the lower end of the inclined guide plate (14) corresponds to the side plate (4).

5. The waste acid liquid impurity precipitation and cleaning device according to claim 1, characterized in that: A support plate (15) is provided on a side of the higher partition (11) away from the lower partition (11); the support plate (15) is arranged obliquely; one end of the support plate (15) is welded and fixed to the higher partition (11), and the other end is welded and fixed to the box body (1).

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