A Pretreatment Device Favorable to Coking Wastewater Treatment

Abstract

The invention discloses a pretreatment device beneficial to the treatment of coking wastewater, and relates to the technical field of wastewater treatment. The invention comprises a device casing, one surface of the device casing is fixedly connected with a pretreatment chamber, one surface of the pretreatment chamber is connected with a filter box, and one surface of the pretreatment chamber runs through a drain pipe and a water inlet pipe respectively, and both ends of the drain pipe and the water inlet pipe extend into the device Inside the casing, the surface of the pretreatment bin is fixedly connected with a deceleration device, and the surface of the pretreatment bin is fixedly connected with a self-priming sewage pump. The invention uses the mutual cooperation of the rotating base and the rotating paddle so that the floating objects in the coking wastewater will automatically Gathering towards the center of the device shell is conducive to the unified cleaning of the self-priming sewage pump. The annular spray head can make the dissolved air water delivered by the dissolved air pump evenly dispersed inside the device shell, increasing the probability of contact with floating objects in the waste water, and further improving The efficiency of wastewater treatment has the advantages of high efficiency and uniformity of wastewater pretreatment.

Description

Technical field[0001]The present invention relates to the field of wastewater treatment, in particular a pretreatment device that facilitates coking wastewater treatment.Background technique[0002]The coking industry has developed rapidly in recent years, and the treatment of coking wastewater with the band has gradually become a problem of sewage treatment. The coking wastewater is characterized by a certain amount of heavy oil and light oil, and has a higher level of hydride, phenol, ammonia nitrogen, etc., the contaminant concentration is high, the chromaticity is high, and the nature is unstable. It needs special treatment Before it can be discharged, it is mainly from the production water and steam condensation waste from coking production process. It is a typical toxic difficult degradation organic wastewater in a chemical product recovery and chemical product recycling and chemical product.[0003]Pre-coking wastewater before the coking wastewater treatment is conducive to impro...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a pretreatment device that is beneficial to the treatment of coking wastewater. Through the mutual cooperation of the rotating base and the rotating paddle, the floating objects in the coking wastewater will automatically gather towards the center of the device shell, thereby effectively It is conducive to the unified cleaning of the self-priming sewage pump, which solves the problem of low efficiency of cleaning residues in the existing air flotation machine; through the cooperation of the central liquid level sensor and the peripheral liquid level sensor, the height of the central liquid level inside the device shell can be detected in real time, Keep the liquid level always within the control range of the rotary paddle, and keep a certain height difference between the liquid level at the edge of the device shell and the center liquid level, further improve the collection efficiency of floating objects, and solve the problem of unstable liquid level when the device collects Problem: The dissolved air water transported by the dissolved air pump can be evenly dispersed inside the device shell through the annular spray head, which increases the probability of contact with floating objects in the wastewater, further improves the efficiency of wastewater treatment, and solves the problem of existing air flotation machines. Problems with uneven water spray

Images