Food waste oil-water centrifugal separation device

Abstract

The invention discloses a novel kitchen waste oil-water centrifugal separation device. The novel kitchen waste oil-water centrifugal separation device comprises a solid-liquid separation centrifuge, an oil-water separation centrifuge, an oil storage barrel and a control box, wherein the solid-liquid separation centrifuge comprises a first box body, a stainless steel net-like liner, a garbage collecting cloth bag and a first motor; the bottom of the first box body is sequentially connected with a liquid inlet valve and one end of a lift pump through pipes; the other end of the lift pump is sequentially connected with a liquid outlet valve and an inlet of the oil-water separation centrifuge through pipes; the oil-water separation centrifuge comprises a second box body, a second motor and an oil-water centrifugal inner barrel; a first upper liquid level specific resistance measuring electrode and a second upper liquid level specific resistance measuring electrode are sequentially mounted at the upper liquid level position of the upper part of the oil-water centrifugal inner barrel in the upper direction and the lower direction; a first lower liquid level specific resistance measuring electrode and a second lower liquid level specific resistance measuring electrode are sequentially mounted at the lower liquid level position of the lower part of the oil-water centrifugal inner barrel in the upper direction and the lower direction. The novel kitchen waste oil-water centrifugal separation device disclosed by the invention can implement solid-liquid separation, and further implement oil-water separation with high separation efficiency, so as to greatly increase the working efficiency of the device.

Description

technical field [0001] The invention relates to the technical field of oil-water centrifugal separation, in particular to a kitchen waste oil-water centrifugal separation device. Background technique [0002] The rapid development of the urban catering service industry has led to a large amount of kitchen waste, which contains a large amount of high-concentration vegetable oil wastewater. This type of sewage is different from hydrocarbon-containing petroleum wastewater, because oil has undergone high-temperature treatment and vigorous stirring and mixing, and its composition and existence form in wastewater are more complex. This kind of wastewater is directly discharged into the urban domestic pollution pipe network, and the grease is easy to adhere to the pipe wall, which is easy to block the pipe, and it is difficult to dredge, causing a huge burden on the urban municipal management department. If the oily wastewater is directly discharged to the sewage treatment plant, ...

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Problems solved by technology

However, this type of sewage is different from hydrocarbon-containing petroleum wastewater, because oil has undergone high-temperature treatment and vigorous stirring and mixing, and its composition and existence form in wastewater are relatively complex.

This kind of wastewater is directly discharged into the urban life pollution pipe network, and the grease is easy to adhere to the pipe wall, which is easy to block the pipe, and it is difficult to dredge, causing a huge burden on the urban municipal management department.

If the grease wastewater is directly discharged to the sewage treatment plant, it will not only make it difficult to oxygenate the oxidation tank, inhibit the microbial activity, reduce the treatment load, and deteriorate the quality of the effluent; it is also a waste of resources

[0003] On the one hand, the commonly used gravity oil separation method often can only separate the floating oil with a large particle size from water, and the separation effect is not good, the oil layer is not concentrated, and it will also produce foul odor, and it is inconvenient to take oil; while the air flotation method The effect of removing dissolved oil is poor. These two commonly used methods often cannot separate grease efficiently. Some processing equipment occupies a large area, requires a large investment in equipment, and high processing costs; on the other hand, the separation and identification of oil and water is more complicated.

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