Spiral conveying filter material cleaning and screening device

Abstract

The utility model relates to a screw conveying type filter material cleaning and screening device. The main purpose of the invention is to provide a device for cleaning and screening the used filter material of the oil field sewage filter tank so as to realize the reuse of the filter material. It is characterized in that it includes a cleaning unit, a rinsing unit, a drying unit and a screening unit, the cleaning unit is used for mixing and stirring the filter material with the washing liquid during the screw conveying process; the rinsing unit is used for the filter material to be mixed and stirred during the screw conveying process mixed with clean water to achieve the purpose of washing off the residual detergent on the filter material; the drying unit is used for heating and drying the filter material during the screw conveying process, so as to facilitate the smooth screening of the next process; The above-mentioned drying unit is used for heating and drying the filter material during the screw conveying process, so as to facilitate the smooth screening of the next process.

Description

technical field [0001] The invention relates to a mechanical device for cleaning and screening the used filter sand material of an oil field sewage filter tank to realize reuse. Background technique [0002] In various engineering fields that require filtration such as oil fields, various filter tanks are widely used as common equipment for advanced sewage treatment. All kinds of sand materials laid in layers are the main filter materials of the filter tank. After a certain period of use, the filter sand materials will lose their filtration performance due to the adhesion and pollution of impurities such as dirty oil and sludge, resulting in a decline in filtration performance or even clogging. . If the used filter sand is directly discarded, it will pollute the environment, and the cost of replacing the new filter sand is relatively high. Therefore, if the used filter sand is cleaned and screened, it can be reused. [0003] At present, the cleaning and sieving treatment ...

AI Technical Summary

Problems solved by technology

Manual cleaning and screening of filter sand outside the filter tank, although the treatment effect is better, but the labor intensity is high and the treatment efficiency is low

On-line cleaning technologies such as air bubbles in the filter tank, although the labor intensity is low, but the filter tank needs to be modified, and the online cleaning effect in the filter tank is not good, and it will confuse each layer of sand, resulting in the filtering effect of the filter tank when it is reused. reduce

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