Oily wastewater precipitation treatment device

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to an oily wastewater sedimentation treatment device which comprises a wastewater treatment pond, a main water supply pipe and a main control valve, the main water supply pipe stretches across the wastewater treatment pond, the main control valve is installed on the main water supply pipe, and an overflow partition plate is welded in the middle of an inner cavity of the wastewater treatment pond. An inner cavity of the wastewater treatment pond is divided into an overflow cavity and a precipitation cavity through an overflow partition plate, and a water injection pipe is connected to the position, corresponding to the precipitation cavity, of the main water supply pipe; the precipitation overflow device is additionally arranged, so that sticky oil-containing wastewater enters the precipitation overflow device for oil-containing sludge precipitation treatment, and oil-containing sewage containing a small amount of impurities such as oil sludge is discharged to a wastewater treatment station through the oil-containing sewage main pipeline, so that pipeline blockage caused by more oil sludge in the oil-containing sewage is reduced; the production continuity is ensured, and the maintenance cost caused by pipeline blockage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a sedimentation treatment device for oily wastewater. Background Art

[0002] A rolling mill is a device used to realize the metal rolling process, and generally refers to the equipment that completes the entire process of rolled material production. Depending on the number of rollers, rolling mills are divided into different types such as two-roller, four-roller, six-roller, eight-roller, twelve-roller, and eighteen-roller. They include unwinders, rolling systems, drive systems, hydraulic systems, control systems, roll removal devices and other components.

[0003] The invention patent currently published with the publication number CN102310080A discloses a rolling mill frame structure for steel rolling equipment. The structure is assembled from separate components, the frame has strong rigidity, and the bearing seat assembly is positioned and easy to assemble to solve the problem of insufficient rigidity of the rolling mill frame. In addition, the deformation of other components results in a large cumulative error, making it difficult to meet the rolling quarterly requirements.

[0004] A large amount of oily wastewater is generated during the production process of the rolling mill. The oily wastewater contains a large amount of sludge formed by a mixture of grease and iron powder. In addition, the wastewater pipeline is too long and the oily wastewater itself has the viscous properties, which easily causes the sludge to adhere to and precipitate in the pipeline, resulting in poor drainage and internal blockage of the pipeline, making it impossible to discharge the sewage in the underground oil depot, greatly affecting the continuity of production. In order to solve the above problems, this application proposes an oily wastewater sedimentation treatment device. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a sedimentation treatment device for oily wastewater, which adds a sedimentation overflow device, so that the relatively viscous oily wastewater enters the sedimentation overflow device for oily sludge sedimentation treatment, and the oily wastewater containing a small amount of oily sludge and other debris is discharged to the wastewater treatment station through the oily wastewater main pipeline, thereby reducing the pipeline blockage caused by the large amount of oily sludge in the oily wastewater, ensuring the continuity of production, and reducing the maintenance costs caused by pipeline blockage, so as to solve the problems raised in the background technology.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides an oily wastewater sedimentation treatment device, comprising a wastewater treatment tank, a main water supply pipe and a main control valve, wherein the main water supply pipe spans above the wastewater treatment tank, the main control valve is installed on the main water supply pipe, an overflow partition plate is welded to the middle of the inner cavity of the wastewater treatment tank, and the inner cavity of the wastewater treatment tank is separated into an overflow chamber and a sedimentation chamber by the overflow partition plate;

[0009] A water injection pipe is connected to the main water supply pipe at a position corresponding to the sedimentation chamber;

[0010] The bottom of the overflow chamber side wall is connected to a connecting pipe, the end of the connecting pipe away from the overflow chamber is connected to a drainage pump, the drainage end of the drainage pump is connected to a water supply pipe, and the top of the water supply pipe is connected to the main water supply pipe.

[0011] Preferably, the top of the side wall of the precipitation chamber is connected to an overflow pipe, and the overflow pipe is higher than the top height of the overflow partition plate.

[0012] Preferably, the bottom of the side wall of the sedimentation chamber is connected to a wastewater discharge pipe, and the end of the wastewater discharge pipe is connected to an overflow pipe.

[0013] Preferably, the water injection pipe is located on one side of the main control valve, and the water injection pipe is close to the water inlet end of the main water supply pipe, and a water injection valve is installed on the water injection pipe.

[0014] Preferably, a wastewater discharge valve is installed on the wastewater discharge pipe.

[0015] Preferably, a connecting valve is installed on the connecting pipe, and a water supply valve is installed on the water supply pipe.

[0016] Preferably, a cleaning manhole is provided through the bottom of the side wall of the sedimentation chamber, and a cover plate is installed on the surface of the cleaning manhole by bolts.

[0017] The above technical solution of the utility model has the following beneficial technical effects:

[0018] 1. In the utility model, the wastewater in the main water supply pipe is injected into the sedimentation chamber in the wastewater treatment tank through the water injection pipe. The wastewater is slowly injected into the sedimentation chamber to ensure that the wastewater has sufficient sedimentation time. After the water level of the wastewater exceeds the top height of the overflow partition plate, the settled wastewater overflows into the overflow chamber. After the water supply valve and the connecting valve are opened, the wastewater in the overflow chamber is extracted by the drainage pump and re-injected into the main water supply pipe through the water supply pipe, thereby reducing the impurity content in the wastewater and avoiding blockage of the main water supply pipe.

[0019] 2. According to the utility model, after stopping water injection, the wastewater discharge valve is opened, and the wastewater in the sedimentation chamber is discharged through the wastewater discharge pipe. After the cover plate is removed, the sediment in the sedimentation chamber is quickly cleaned through the cleaning manhole. After closing the connecting valve and the water supply valve, it is convenient to repair the drainage pump, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an oily wastewater sedimentation treatment device of the utility model;

[0021] Figure 2This is a rear structural schematic diagram of an oily wastewater sedimentation treatment device according to the present invention;

[0022] Figure 3 This is a schematic cross-sectional view of a sedimentation treatment device for oily wastewater according to the present invention;

[0023] Figure 4 This is a schematic diagram of the cleaning manhole structure of an oily wastewater sedimentation treatment device of the utility model.

[0024] Reference numerals:

[0025] 1. Wastewater treatment tank; 2. Main water supply pipe; 3. Main control valve; 4. Overflow partition plate; 5. Overflow chamber; 6. Sedimentation chamber; 7. Water injection pipe; 8. Water injection valve; 9. Overflow pipe; 10. Wastewater discharge pipe; 11. Wastewater discharge valve; 12. Connecting pipe; 13. Drain pump; 14. Water supply pipe; 15. Connecting valve; 16. Water supply valve; 17. Manhole for cleaning; 18. Cover plate. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0027] like Figure 1-4 As shown, the present invention proposes an oily wastewater sedimentation treatment device, comprising a wastewater treatment tank 1, a main water supply pipe 2, and a main control valve 3. The main water supply pipe 2 spans above the wastewater treatment tank 1, and the main control valve 3 is installed on the main water supply pipe 2. An overflow partition plate 4 is welded to the middle of the inner cavity of the wastewater treatment tank 1. The inner cavity of the wastewater treatment tank 1 is separated into an overflow chamber 5 and a sedimentation chamber 6 by the overflow partition plate 4.

[0028] A water injection pipe 7 is connected to the main water supply pipe 2 at a position corresponding to the sedimentation chamber 6;

[0029] The bottom of the side wall of the overflow chamber 5 is connected to a connecting pipe 12, and the end of the connecting pipe 12 away from the overflow chamber 5 is connected to a drainage pump 13. The drainage end of the drainage pump 13 is connected to a water supply pipe 14, and the top of the water supply pipe 14 is connected to the main water supply pipe 2.

[0030] It should be noted that the wastewater in the main water supply pipe 2 is injected into the sedimentation chamber 6 in the wastewater treatment tank 1 through the water injection pipe 7. The wastewater is slowly injected into the sedimentation chamber 6 to ensure that the wastewater has sufficient sedimentation time. After the water level of the wastewater exceeds the top height of the overflow partition plate 4, the precipitated wastewater overflows into the overflow chamber 5. After the water supply valve 16 and the connecting valve 15 are opened, the wastewater in the overflow chamber 5 is extracted by the drainage pump 13, and the wastewater is re-injected into the main water supply pipe 2 through the water supply pipe 14 to reduce the impurity content in the wastewater.

[0031] In this embodiment, if Figure 3 and Figure 4 As shown, the top of the side wall of the precipitation chamber 6 is connected to an overflow pipe 9, and the overflow pipe 9 is higher than the top height of the overflow partition plate 4.

[0032] It should be noted that the overflow pipe 9 is higher than the top height of the overflow partition plate 4 , so that after the overflow chamber 5 is filled, wastewater flows out through the overflow pipe 9 , thereby improving the safety of the wastewater treatment tank 1 during use.

[0033] In this embodiment, if Figure 3 and Figure 4 As shown, the water injection pipe 7 is located on one side of the main control valve 3 , and the water injection pipe 7 is close to the water inlet end of the main water supply pipe 2 , and a water injection valve 8 is installed on the water injection pipe 7 .

[0034] It should be noted that when the main control valve 3 is closed and the water injection valve 8 is opened, the wastewater in the main water supply pipe 2 is injected into the sedimentation chamber 6 in the wastewater treatment tank 1 through the water injection pipe 7 .

[0035] In this embodiment, if Figure 3 and Figure 4 As shown, the bottom of the side wall of the sedimentation chamber 6 is connected to the wastewater discharge pipe 10, the end of the wastewater discharge pipe 10 is connected to the overflow pipe 9, a wastewater discharge valve 11 is installed on the wastewater discharge pipe 10, a connecting valve 15 is installed on the connecting pipe 12, and a water supply valve 16 is installed on the water supply pipe 14. A cleaning manhole 17 is opened through the bottom of the side wall of the sedimentation chamber 6, and a cover plate 18 is installed on the surface of the cleaning manhole 17 by bolts.

[0036] It should be noted that after stopping the water injection, the wastewater discharge valve 11 is opened, and the wastewater in the sedimentation chamber 6 is discharged through the wastewater discharge pipe 10. After removing the cover plate 18, the sediment in the sedimentation chamber 6 is quickly cleaned by cleaning the manhole 17. After closing the connecting valve 15 and the water supply valve 16, it is convenient to repair the drainage pump 13, and it is more convenient to use.

[0037] The working principle and use process of the utility model are as follows: the main control valve 3 is closed and the water injection valve 8 is opened. The wastewater in the main water supply pipe 2 is injected into the sedimentation chamber 6 in the wastewater treatment tank 1 through the water injection pipe 7. The wastewater is slowly injected into the sedimentation chamber 6 to ensure that the wastewater has sufficient sedimentation time. After the water level of the wastewater exceeds the height of the top of the overflow partition plate 4, the settled wastewater overflows into the overflow chamber 5. After the water supply valve 16 and the connecting valve 15 are opened, the wastewater in the overflow chamber 5 is extracted by the drainage pump 13 and the wastewater is re-injected into the main water supply pipe 2 through the water supply pipe 14. In order to reduce the impurity content in the wastewater, when the water supply pipe 14, the connecting pipe 12 and the drainage pump 13 fail, the wastewater cannot be discharged in time, and the wastewater overflows through the overflow pipe 9, thereby improving the safety of the wastewater treatment tank 1 during use. After stopping the water injection, the wastewater discharge valve 11 is opened, and the wastewater in the sedimentation chamber 6 is discharged through the wastewater discharge pipe 10. After the cover plate 18 is removed, the sediment in the sedimentation chamber 6 is quickly cleaned through the cleaning manhole 17. After closing the connecting valve 15 and the water supply valve 16, it is convenient to repair the drainage pump 13, and it is more convenient to use.

[0038] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims or their equivalents.

Claims

1. A device for treating oily wastewater by sedimentation, comprising a wastewater treatment tank (1), a main water supply pipe (2) and a main control valve (3), wherein the main water supply pipe (2) spans above the wastewater treatment tank (1), and the main control valve (3) is installed on the main water supply pipe (2), characterized in that: An overflow partition plate (4) is welded in the middle of the inner cavity of the wastewater treatment tank (1), and the inner cavity of the wastewater treatment tank (1) is separated into an overflow chamber (5) and a sedimentation chamber (6) by the overflow partition plate (4); A water injection pipe (7) is connected to the main water supply pipe (2) at a position corresponding to the sedimentation chamber (6); The bottom of the side wall of the overflow chamber (5) is connected to a connecting pipe (12), one end of the connecting pipe (12) away from the overflow chamber (5) is connected to a drainage pump (13), the drainage end of the drainage pump (13) is connected to a water supply pipe (14), and the top of the water supply pipe (14) is connected to the main water supply pipe (2).

2. The oily wastewater sedimentation treatment device according to claim 1, characterized in that: The top of the side wall of the precipitation chamber (6) is connected to an overflow pipe (9), and the overflow pipe (9) is higher than the top of the overflow partition plate (4).

3. The oily wastewater sedimentation treatment device according to claim 2, characterized in that: The bottom of the side wall of the sedimentation chamber (6) is connected to a wastewater discharge pipe (10), and the end of the wastewater discharge pipe (10) is connected to an overflow pipe (9).

4. The oily wastewater sedimentation treatment device according to claim 3, characterized in that: The water injection pipe (7) is located on one side of the main control valve (3), and the water injection pipe (7) is close to the water inlet end of the main water supply pipe (2). A water injection valve (8) is installed on the water injection pipe (7).

5. The oily wastewater sedimentation treatment device according to claim 4, characterized in that: A wastewater discharge valve (11) is installed on the wastewater discharge pipe (10).

6. The oily wastewater sedimentation treatment device according to claim 5, characterized in that: A connecting valve (15) is installed on the connecting pipe (12), and a water supply valve (16) is installed on the water supply pipe (14).

7. The oily wastewater sedimentation treatment device according to claim 6, characterized in that: A cleaning manhole (17) is provided through the bottom of the side wall of the sedimentation chamber (6), and a cover plate (18) is mounted on the surface of the cleaning manhole (17) via bolts.

Images