CN204454765U - Oil-water separation tank - Google Patents

Abstract

The structure of the oil-water separation tank of the present utility model includes a separation tank, and the interior of the separation tank is divided into several adjacent overflow tanks, and a filter part is arranged between the overflow tank and the overflow tank, and the separation tank is in the The interior is also equipped with a liquid level controller, an oil collection tank, and a ball float valve group. Among them, the filter part is composed of a bottom partition and a floating plate. The new type separates oil and water according to the principle of gravity sedimentation, so that the oil with lower density adheres to the floating plate and gradually floats to the water surface of the oil collection tank. The utility model has reasonable design, simple structure, low cost, and remarkable separation effect. Broad market application prospects.

Description

Oil-water separation tank

technical field

The utility model relates to the technical field of sewage treatment, in particular to an oil-water separation tank for treating a plating solution mixed with oil and water in the electroplating production process.

Background technique

In industrial production, the treatment of oily wastewater is a difficult problem. If it is directly discharged into lakes or oceans, it will cause serious environmental pollution and cause energy loss and waste. For this reason, people have invented oil-water separation equipment. By increasing the volume of oil-water separation equipment, the oily wastewater has enough residence time in it, and then the layered separation of oil and water can be achieved through long-term residence.

This kind of oil-water separation equipment has obvious deficiencies. First, it is large in size, occupies a large area, and the cost is high; second, it has a complex structure, but the separation efficiency is low, the separation effect is poor, and it is difficult to meet environmental protection requirements; third, it is inconvenient to maintain and maintain the equipment. , especially in the electroplating industry, the separation of oily wastewater is more difficult, and it needs to be cleaned by adding chemicals during maintenance, which will cause secondary pollution, and the cleaning process is time-consuming and labor-intensive.

Utility model content

Aiming at the problems in the above-mentioned background technology, the utility model provides an oil-water separation tank with reasonable design, simple structure, convenient use and remarkable effect.

In order to achieve the above object, the technical solution adopted by the utility model is: the structure of the oil-water separation tank includes a separation tank, the inside of the separation tank is divided into at least three adjacent overflow tanks, and the overflow tank and the overflow tank Intervals are provided with filtering components. The side of the separation tank is connected with water pipes, the water pipes include water inlet pipes and water outlet pipes, and the separation tank is also equipped with a liquid level controller, an oil collection tank, and a float valve group connected to control the oil collection tank. The liquid level controller is installed at the rear of the separation tank and connected to the water inlet pipe, the oil collection tank is fixed on the top of the overflow tank, and the float valve group is installed between the water inlet pipe and the overflow tank.

As a further setting of the above scheme: the filter part is composed of a bottom partition and a floating plate, and the bottom partition and the floating plate are arranged at intervals in front and back, and a filter for the passage of oily wastewater is left between the bottom partition and the floating plate. The gap, in which the bottom partition is installed and fixed at the bottom of the separation tank, and the floating plate is suspended and fixed under the corresponding oil collection tank.

The water inlet pipe is connected to the upper left side of the separation tank.

The outlet pipe is connected to the lower right side of the separation tank, and a water pump is installed inside the outlet pipe.

The number of the oil collecting tanks corresponds to the number of the overflow tanks.

There is a distance of at least 15 mm between the floating plate and the bottom of the separation tank.

According to the density difference between oil and water, the utility model uses the principle of gravity sedimentation to separate oil and water. The overflow tank forms multiple circuitous channels inside the separation tank. When the oily waste water flows into the water inlet pipe and meets the filter parts , under the force of the water flow, the less dense oil adheres to the floating plate and gradually floats to the water surface of the oil sump. In addition, under the layer-by-layer interception of filter components, the flow velocity of oily wastewater tends to slow down, making the flow velocity of oily wastewater more uniform, providing enough time and space for oil to accumulate on the surface of the floating plate, and the separation effect is very significant.

Through such design, the utility model has the advantages and progress of:

1. There is no need to add chemicals during oil-water separation, and it is not necessary to increase the volume of the oil-water separation tank. The separation effect is good, a large amount of production cost is saved, and there is no problem of secondary pollution. It has the advantages of novel design, simple structure, and compact volume; 2. Through the liquid level controller, you can intuitively understand the capacity of the oily wastewater inside the separation tank, and close or open the water inlet pipe in time to prevent overflow; 3. The float valve group opens or closes the opening of the oil collection tank under the action of buoyancy to prevent Spill, has a good practical effect.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is a structural representation of the utility model.

In the figure: 1. Separation tank, 2. Overflow tank, 3. Inlet pipe, 4. Outlet pipe, 5. Liquid level controller, 6. Oil collection tank, 7. Float valve group, 8. Bottom partition, 9. floating board.

Detailed ways

Referring to shown in Figure 1, the oil-water separation tank of the present utility model comprises a separation tank 1, and the interior of the separation tank 1 is divided into three adjacent overflow tanks 2, and filter parts are arranged at intervals between the overflow tank and the overflow tank, each The top of the overflow tank is fixed with the corresponding oil collection tank 6, the water inlet pipe 3 is connected to the upper left side of the separation tank 1, and the outlet pipe 4 with the pump installed inside is connected to the lower right side of the separation tank 1, and the liquid level The controller 5 is installed at the rear of the separation tank 1 and connected to the water inlet pipe 3, and the float valve group 7 is erected between the water inlet pipe and the first overflow tank.

The filter part is composed of a bottom partition 8 and a floating plate 9, the bottom partition 8 and the floating plate 9 are arranged at intervals front and back, and there is a gap between the bottom partition 8 and the floating plate 9 to accommodate the passage of oily wastewater , wherein the bottom partition plate 8 is installed and fixed on the bottom of the separation tank 1, the floating plate 9 is hung and fixed below the corresponding oil sump, and a distance of 15mm is left between the floating plate 9 and the bottom of the separation tank 1.

When the oily wastewater flows into the water inlet pipe 3 and encounters the filter components, under the force of the water flow and the layer upon layer blocking of the filter components, the flow rate of the oily wastewater tends to be slow and uniform, and the oil with a lower density adheres to the floating plate 9 and gradually float to the water surface of the oil sump 6. In this process, when the water level of the separation tank 1 is low enough to float the float valve group 7, the float valve group 7 closes the oil sump 6 through the internal baffle plate. Opening, when the water level of the separation tank 1 reaches a certain height and is enough to float the ball float valve group 7, the ball float valve group 7 opens the opening of the oil collection tank 6 during the process of floating up, so as to facilitate the collection of the accumulated oil and the separated clear water Under the strong extraction of the outlet pipe 4, it returns to the back-plating tank, which is convenient for the next use after recycling, reduces the waste of plating solution, and the separation effect is very significant, thereby effectively saving production costs. Realize the mechanization and automation of the separation and treatment of oily wastewater in the electroplating process.

The announcement of the above-mentioned embodiment is only the preferred embodiment of the present utility model, but is not limited thereto, those of ordinary skill in the art can easily understand the spirit of the present utility model according to the above-mentioned embodiment, without departing from the technical aspects of the present utility model The changes made under the circumstances all belong to the protection scope of the present utility model.

Claims (6)

1. an oil-water separation tank, comprise a separate tank, the interior separation of this separate tank becomes at least three adjacent overflow grooves, overflow groove and overflow groove be interval with filter element, it is characterized in that: described separate tank is equipped with water pipe at side, this water pipe includes water pipe and rising pipe, described separate tank has also set up fluid level controller in inside, oil trap, and the float(ing)valve group of connection control oil trap, wherein fluid level controller is arranged on the rear of separate tank and is connected conducting with inhalent siphon, oil trap is fixed on the top of overflow groove, float(ing)valve shelving is located between inhalent siphon and overflow groove.

2. oil-water separation tank according to claim 1, it is characterized in that: described filter element is made up of base spacer and floating plate, the arrangement in time interval between base spacer and floating plate, between base spacer and floating plate, indwelling has the gap holding oily(waste)water and pass through, wherein base spacer is fixed on the bottom of separate tank, and floating plate hangs the below being fixed on corresponding oil trap.

3. oil-water separation tank according to claim 1, is characterized in that: described inhalent siphon is arranged in above the left side of separate tank.

4. oil-water separation tank according to claim 1, is characterized in that: described rising pipe is arranged in the lower right-hand side of separate tank, and rising pipe is provided with lift pump in inside.

5. oil-water separation tank according to claim 1, is characterized in that: described oil trap quantity is corresponding consistent with the quantity of overflow groove.

6. oil-water separation tank according to claim 2, is characterized in that: between described floating plate and the bottom of separate tank, indwelling has the spacing of at least 15mm.