Sump oil dehydration technology and device
A kind of sewage oil and process technology, which is applied in the fields of grease/oily substance/float removal device, heating water/sewage treatment, water/sewage multi-stage treatment, etc. and other problems, to achieve the effect of considerable economic benefits, broad application prospects, and prevention of excessive attenuation.
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Embodiment 1
[0045] Such as figure 1 As shown, the sewage tank 1, the centrifugal pump 22 and the upper side of the cyclone 2 are connected sequentially through the pipeline, the top of the cyclone 2 is connected to the bottom of the expansion pipe 3, and the middle side of the expansion pipe 3 is connected to the metering pump 21 , the top of the expansion pipe 3 is connected to the mixing tank 4, and the bottom of the mixing tank 4 is vertically provided with a distribution pipe 5, and the bottom of the distribution pipe 5 is directly connected with the sewage oil inlet pipe 20 at one end of the settling tank 19, and the sewage oil inlet pipe inside the settling tank 19 The top of the 20 is provided with a dirty oil outlet pipe 6, and the other end of the settling tank 19 is sequentially arranged with a dirty oil outlet 8, an oil-water interface layer outlet 16 and a water layer outlet 15, and the dirty oil outlet pipe 6 is connected with the dirty oil outlet 8, and the oil-water The out...
Embodiment 2
[0049] Set side pipe 7 on dirty oil inlet pipe 20 and dirty oil outlet pipe 6, settling tank 19 outer shape is rectangle, groove width 5.9m, depth 4.9m, and the bottom is inclined slope. As shown in FIG. 2 , the ultrasonic generator 17 emitter is a shuttle-shaped emitter, and the others are the same as in Embodiment 1.
[0050] From the sewage oil tank 1, the water-containing sewage oil is transported through the centrifugal pump 22 into the cyclone separator 2, and the cyclone separator 2 separates the free water in the sewage oil by relying on the difference in specific gravity of oil and water. The waste oil is further processed, mixed with the demulsifier from the metering pump 21 into the expansion pipe 3 for preliminary mixing, and then enters the mixing tank 4. In the mixing tank 4, the oil agent is further mixed through the slow stirring of the stirring paddle, and the waste oil is discharged from the mixing tank 4 The bottom enters the sewage oil inlet pipe 20 through...
Embodiment 3
[0053] The device is the same as in Example 2.
[0054] Process: Put the dirty oil with a water content of 48% into the cyclone separator, after part of the free water is removed, add 200mg / L demulsifier, stir and mix in the mixing tank, put it into the settling tank through the dirty oil discharge pipe, and heat And keep the dirty oil temperature at 90°C, the frequency of ultrasonic wave is 20kHz, and the sound energy density is 0.3kW / m 3 Continuous effect, after 48 hours, the oil and water are separated, and the upper part of the dirty oil is taken for analysis. The water content is 9.7%, and the upper part of the dirty oil can be sent to the device for re-refining. Higher emulsification is still serious, enter the oil-water separation tower, heat it at 100°C to boil and evaporate the water, and the remaining dirty oil has a water content of 6%, which is sent to coking and blending.
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