CN216855753U - Oil-water separator for sewage treatment - Google Patents

Abstract

An oil-water separator for sewage treatment comprises a box body, wherein a water inlet pipe is arranged above one side of the box body, a filter residue basket is arranged at the lower part of an opening of the water inlet pipe, a water discharge pipe penetrates out of the box body in the box body, an oil discharge pipe is arranged at the other side of the box body, a waste oil collecting barrel is arranged at the lower part of an outlet of the oil discharge pipe, a resistance detection probe is inserted into the middle upper part of the box body, one end of a controller is connected with the resistance detection probe, the other end of the controller is connected with an electric valve, the electric valve is arranged at the position close to the outlet of the oil discharge pipe, when waste oil is fully accumulated on the upper part of the box body, the resistance detection probe cannot detect resistance, and the controller automatically opens the oil discharge electric valve; after the oil is drained, the water level rises, the resistance probe detects the resistance of the water, and the controller automatically closes the electric valve. The utility model has simple structure, small investment, stable performance and good oil-water separation effect, and ensures the stable operation of the water treatment system.

Description

Oil-water separator for sewage treatment

Technical Field

The utility model relates to an oil-water separator for treating oily sewage.

Background

Papermaking enterprises generally have a plurality of hot presses, and the hot press can produce a large amount of waste water at the course of the work, and waste water falls into the press hole, is equipped with the immersible pump in the press hole, draws to water treatment system through automatic control, discharges up to standard after water treatment system handles. The sealing ring or oil pipe of the oil cylinder of the press sometimes breaks and leaks into the pit of the press, and oily wastewater cannot enter the water treatment system of a company, so that the wastewater enters the water treatment system once, and great treatment difficulty is caused. CN202020575460.8 discloses an oily waste water oil-water separator, this separator includes the wastewater disposal basin, clear water groove and oil storage tank, the feed liquor pipe, the outlet pipe, go out the oil pipe, rotatory bucket and the rotatory motor of drive rotatory bucket, be provided with multilayer filter felt in the rotatory bucket, be provided with outside the rotatory bucket and connect the oil tank, be provided with the water receiving container in the oil receiving tank, the water receiving container is located rotatory bucket below, the bottom of rotatory bucket is provided with the through-hole, the one end and the wastewater disposal basin intercommunication of feed liquor pipe, the other end of feed liquor pipe passes the tank wall that connects the oil tank and stretches into in the rotatory bucket, the upper end and the water receiving container intercommunication of outlet pipe, the lower extreme of outlet pipe stretches into in the clear water groove, the one end of going out the oil pipe with connect the oil tank intercommunication, the other end of going out the oil pipe stretches into in the oil storage tank. The utility model can separate oil and water in the oil-containing wastewater. The separation mode depends on the rotation of the rotary barrel and the multilayer felt filtration, has a somewhat complex structure, and can not save electricity without a motor.

Disclosure of Invention

The utility model aims to provide an oil-water separator which saves electricity and has a simple structure, and is used for separating oil from water in oily wastewater.

The technical scheme includes that the oil-water separator for sewage treatment comprises a box body, wherein a water inlet pipe is arranged above one side of the box body, a residue filtering basket is arranged at the lower portion of an opening of the water inlet pipe, a water discharge pipe penetrates out of the box body in the box body, an oil discharge pipe is arranged at the other side of the box body, a waste oil collecting barrel is arranged at the lower portion of an outlet of the oil discharge pipe, a resistance detection probe is inserted into the middle upper portion of the box body, one end of a controller is connected with the resistance detection probe, the other end of the controller is connected with an electric valve, the electric valve is arranged at the position, close to the outlet, of the oil discharge pipe, when waste oil is fully accumulated on the upper portion of the box body, the resistance probe cannot detect resistance, and the controller opens the electric valve to discharge oil; after the oil is drained, the water level rises, the resistance probe detects the resistance of the water, and the controller closes the electric valve.

The utility model has the positive effects that; simple structure, the investment is little, the stable performance, oil-water separation is effectual, has ensured water treatment system's steady operation.

Drawings

FIG. 1 is a schematic diagram of the present invention.

In the figure: 1 inlet tube, 2 filter residue baskets, 3 boxes, 4 drain pipes, 5 resistance test probes, 6 controllers, 7 motorised valves, 8 waste oil collecting vessel, 9 oil extraction pipes.

Detailed Description

A water oil separator for sewage treatment, which comprises a box body 3, inlet tube 1 is equipped with to box one side top, inlet tube opening lower part is equipped with filter residue basket 2, it is outside that there is a drain pipe 4 to wear out the box in the box, the box opposite side is equipped with oil drain pipe 9, oil drain pipe 9 export lower part is equipped with waste oil collecting bucket 8, a serial communication port, resistance test probe 5 inserts upper portion in the box, 6 one end of controller connect resistance test probe 5, motorised valve 7 is connected to another, motorised valve 7 is installed and is leaned on the exit at oil drain pipe 9, when the amasss of box upper portion waste oil, resistance probe can not detect resistance, controller 6 sends the valve opening signal to the motorised valve, open the oil drain motorised valve, the water level rises after the oil drain, resistance probe detects the resistance of water, the controller sends the valve closing signal to the motorised valve, the motorised valve is closed.

The working principle of the utility model is realized by utilizing that the density of oil is less than that of water and the non-conductivity of oil, wastewater enters an oil-water separator through a water inlet pipe, sewage enters an oil-water separator box body after a residue is filtered by a residue filtering basket, when the wastewater rises to a resistance detection probe, a controller detects that the probe has resistance, an electric valve is closed, water flows out from a drain pipe, if the wastewater contains oil, the oil is not conductive, the probe cannot detect the resistance, the electric valve is opened, the oil is discharged into a waste oil collecting barrel through an oil discharge pipe, after the oil is discharged, the water rises to the probe, the resistance is detected, and the electric valve is closed. If oil leakage occurs, oil can be layered in the box body, the oil density is low, the oil floats on the water surface, when the oil on the upper layer is accumulated to a certain amount, the water level is lowered, the resistance detection probe cannot detect the resistance of the water, the controller sends a valve opening signal to the electric valve, and the electric valve is opened.

Claims (1)

1. A water oil separator for sewage treatment, the power distribution box comprises a box body, the inlet tube is equipped with to box one side top, inlet tube opening lower part is equipped with the filter residue basket, it is outside that there is a drain pipe to wear out the box in the box, the box opposite side is equipped with the drain pipe, drain pipe export lower part is equipped with waste oil collecting vessel, a serial communication port, resistance test probe inserts upper portion in the box, controller one end connection resistance test probe, another connection motorised valve, the motorised valve is installed and is leaned on the exit at the drain pipe, when the box upper portion is amassed with waste oil, resistance probe can not detect resistance, the controller sends the opening valve signal to the motorised valve, open the drain valve, the water level rises after the oil has been arranged, resistance probe detects the resistance of water, the controller sends the closing valve signal to the motorised valve, the motorised valve is closed.

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