Separating tank special for oily sludge treatment
By designing a special separation tank for oil-containing sludge treatment, and using the combined structure of the flow stabilization plate and the baffle plate, the problems of high cost and low efficiency of oil-containing sludge treatment in the existing technology are solved, and efficient and low-cost oil-water slag separation is achieved, reducing environmental risks.
Patent Information
- Application Number
- CN202222678605.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-12
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The prior art has high cost and low efficiency when dealing with oil-containing sludge, and it is difficult to effectively separate oil and water slag, which makes it difficult to solve environmental protection problems.
A special separation tank for oil-containing sludge treatment is designed, and a combined structure of flow stabilization plate and baffle plate is adopted. The separation of oil-water slag through the inclination of flow stabilization plate and the bending of the baffle plate is achieved.
It realizes efficient and low-cost separation of oil-containing sludge, which can effectively remove sludge, oil and water, and reduces the treatment costs and pollution risks in the environmental protection industry.
Smart Images
Figure CN222665664U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oily sludge treatment, in particular to a special separation tank for oily sludge treatment. Background Art
[0002] Oily sludge mainly comes from the grease trap sludge, flotation tank scum, crude oil tank sludge, etc. of petrochemical production enterprises, commonly known as "oil sludge". These oily sludges have different compositions, generally with an oil content of 10% to 50%, a water content of 40% to 90%, and a certain amount of solids. Oily sludge contains a large number of pathogens, parasite eggs, heavy metals such as copper, zinc, chromium, mercury, salts, and toxic and harmful substances that are difficult to degrade, such as polychlorinated biphenyls, dioxins, and radioactive nuclear elements. If it is discharged directly without treatment, it will not only occupy a large amount of arable land, but also pollute the surrounding soil, water, and air.
[0003] At present, most petrochemical companies simply dehydrate the oily sludge and then entrust qualified units to handle it. The processing fee is three to four thousand yuan per ton, including disposal costs and transportation costs.
[0004] The "three transformations" of sludge treatment are imperative. Utility Model Content
[0005] In view of this, the purpose of the utility model is to provide a special separation tank for oily sludge treatment which has a simple structure, low investment cost, high efficiency and high quality separation effect.
[0006] The utility model is implemented by the following scheme: a special separation tank for oily sludge treatment, including a tank body, a downward-inclined flow stabilizing plate is provided on the lower front side wall of the tank body, a baffle is provided on the upper part of the tank body to divide the upper space into a front area and a rear area, the lower part of the baffle is bent forward and located above the flow stabilizing plate, and a gap is left between the lower edge of the baffle and the flow stabilizing plate; a distribution trough is provided in the triangular area formed between the flow stabilizing plate and the front side wall of the tank body, and a feed port is provided at one end of the distribution trough that passes through the side wall of the tank body; an overflow hole is provided on the side wall of the upper front area of the tank body, and an oil collecting trough is provided in the upper rear area of the tank body.
[0007] Furthermore, a mud discharge groove is provided at the bottom of the trough body below the lower part of the flow stabilizing plate, and the mud discharge groove is connected to a slag discharge pipe passing through the side wall of the trough body.
[0008] Furthermore, the material distribution trough is box-shaped and fixedly connected to the inner side of the front side wall of the trough body, and material distribution holes are distributed on the upper side of the material distribution trough.
[0009] Furthermore, an oil drain port is provided on the rear side wall of the tank body, and an oil drain pipe connected to the oil drain port is provided at the lower part of the oil collecting tank.
[0010] Furthermore, there are several overflow holes located at the same height, and the height of the overflow holes is slightly lower than the slot height of the oil collecting tank; an overflow groove is provided on the upper part of the outer side wall of the tank body at the overflow hole, and a drain pipe is provided at the bottom of the overflow groove.
[0011] Furthermore, the angle between the flow stabilizer and the deflector and the vertical direction is 30°-45°.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model special separation tank for oily sludge treatment has a simple structure, is easy to manufacture, has a low investment cost, has a high-efficiency and high-quality separation effect, can effectively separate oily sludge, and is an indispensable separation equipment in the environmental protection industry.
[0013] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front view of an embodiment of the utility model;
[0015] Figure 2 It is a left view of the internal structure of the embodiment of the utility model;
[0016] Explanation of the numbers in the figure: 1-tank body, 2-baffle, 3-stabilizing plate, 4-distributing trough, 4.1-distributing hole, 5-sludge discharge trough, 5.1-sludge discharge pipe, 6-oil collecting trough, 7-oil discharge port, 8-overflow hole, 9-overflow trough, 10-drainage pipe, 11-feeding port, 12-oil discharge pipe. DETAILED DESCRIPTION
[0017] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.
[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0019] like Figure 1~2As shown, a separation tank for treating oily sludge comprises a tank body 1, wherein the lower front side wall of the tank body 1 is provided with a downwardly inclined flow stabilizer 3, and the upper part of the tank body is provided with a baffle 2 which divides the upper space into two areas, front and rear. The lower part of the baffle 2 is bent forward and located above the flow stabilizer 3, and a gap is left between the lower edge of the baffle 2 and the flow stabilizer 3; a distribution tank 4 is provided in the triangular area formed between the flow stabilizer and the front side wall of the tank body, and one end of the distribution tank is provided with a feed port 11 which passes through the side wall of the tank body; an overflow hole 8 is provided on the side wall of the upper front area of the tank body 1, and an oil collecting tank 6 is provided in the upper rear area of the tank body 1; the utility model separation tank for treating oily sludge can effectively separate oily sludge, and can separate oily sludge from oily water residue in various environmental protection industries, especially oily sludge in the petrochemical industry, and is an indispensable separation equipment in the environmental protection industry. The separation tank for treating oily sludge has a simple structure, is easy to manufacture, has a low investment cost, and has a high efficiency and high quality separation effect. After the initial commissioning, it can achieve continuous unattended operation, ensuring the simple and efficient separation of oily sludge from oily water residue.
[0020] In this embodiment, a mud discharge trough 5 is provided at the bottom of the trough body 1 below the lower part of the flow stabilizer plate, and the mud discharge trough is connected to a mud discharge pipe 5.1 passing through the side wall of the trough body. A mud discharge valve is provided on the mud discharge pipe. The sludge is deposited on the mud discharge trough, and the mud discharge valve is opened regularly to discharge the sludge deposited at the bottom of the trough body.
[0021] In this embodiment, the material distribution trough 4 is box-shaped and fixedly connected to the inner side of the front side wall of the trough body, and material distribution holes 4.1 are distributed on the upper side of the material distribution trough.
[0022] In this embodiment, an oil drain port 7 is provided on the rear side wall of the tank body 1, and an oil drain pipe 12 connected to the oil drain port is provided at the lower part of the oil collecting tank.
[0023] In this embodiment, there are several overflow holes and they are located at the same height. The height of the overflow holes is slightly lower than the slot height of the oil collecting tank, about 3 to 4 cm lower. The oil collecting tank 6 is higher than the overflow holes 8. During operation, the liquid level is higher than the oil collecting tank 6, and the overflow holes 8 are submerged below the liquid level, thereby achieving separation of oil, water and residue; an overflow groove 9 is provided on the upper part of the outer side wall of the tank body at the overflow hole, and a drain pipe 10 is provided at the bottom of the overflow groove.
[0024] In this embodiment, the angle between the flow stabilizer and the deflector and the vertical direction is 30°-45°.
[0025] For the first use, fill the separation tank with clean water, and the oily sludge enters the distribution tank 4 through the feed port 11. After the oily sludge is filled, it enters the separation tank evenly through the distribution hole 4.1. Under the blocking and stabilizing effect of the flow stabilizer 3, the oily sludge begins to separate according to the different specific gravities of oil, water and sludge. The sludge with increased specific gravity is deposited at the bottom of the tank body. After accumulating for a certain period of time, it is collected by the sludge discharge tank 5 and discharged at the sludge discharge port 5.1. Water and oil bypass the flow stabilizer 3 and move upward. Under the blocking effect of the baffle 2, more than 90-95% of the oil with a specific gravity smaller than water will be blocked to the back side of the baffle 2, continue to move upward to the liquid surface, flow into the oil collecting tank 6, and be discharged through the oil discharge pipe 12 and the oil discharge port 7. A large amount of water moves upward through the gap between the baffle 2 and the flow stabilizer 3, flows into the overflow tank 9 through the overflow hole 8, and is discharged in the drain pipe 10.
[0026] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values to be exhaustive, the utility model discloses only some numerical values to illustrate the technical solution of the utility model, and the numerical values listed above should not constitute a limitation on the scope of protection of the utility model.
[0027] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).
[0028] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.
[0029] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated forming process.
[0030] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.
Claims
1. A special separation tank for oily sludge treatment, characterized in that: It comprises a trough body, wherein a downwardly inclined flow-stabilizing plate is provided on the lower front side wall of the trough body, a baffle is provided on the upper part of the trough body to divide the upper space into a front area and a rear area, the lower part of the baffle is bent forward and is located above the flow-stabilizing plate, and a gap is left between the lower edge of the baffle and the flow-stabilizing plate; a material distribution trough is provided in the triangular area formed between the flow-stabilizing plate and the front side wall of the trough body, and a material feed port passing through the side wall of the trough body is provided at one end of the material distribution trough; an overflow hole is provided on the side wall of the upper front area of the trough body, and an oil collecting trough is provided in the upper rear area of the trough body; the height of the overflow hole is slightly lower than the height of the trough opening of the oil collecting trough.
2. The separation tank for treating oily sludge according to claim 1, characterized in that: A mud discharge groove is provided at the bottom of the tank body below the lower part of the flow stabilizing plate, and the mud discharge groove is connected to a slag discharge pipe passing through the side wall of the tank body.
3. The separation tank for treating oily sludge according to claim 1, characterized in that: The material distribution trough is box-shaped and fixedly connected to the inner side of the front side wall of the trough body, and material distribution holes are distributed on the upper side of the material distribution trough.
4. The separation tank for treating oily sludge according to claim 1, characterized in that: An oil drain port is arranged on the rear side wall of the tank body, and an oil drain pipe connected to the oil drain port is arranged at the lower part of the oil collecting tank.
5. The separation tank for treating oily sludge according to claim 1, characterized in that: There are several overflow holes located at the same height; an overflow groove is arranged at the overflow hole on the upper part of the outer side wall of the trough body, and a drainage pipe is arranged at the bottom of the overflow groove.
6. The separation tank for treating oily sludge according to claim 1, characterized in that: The angle between the flow stabilizer and the baffle and the vertical direction is 30°-45°.