Pretreatment filtering apparatus for waste emulsion

Abstract

The invention discloses a pretreatment filtering apparatus for waste emulsion. The pretreatment filtering apparatus comprises a filtering net, a filtering net framework, a liquid outlet pipe, a filtering net cleaning apparatus. The pretreatment filtering apparatus is arranged in an oil tank storing the emulsion. The filtering net is a hollow grid body with an upper side surface being hollowed andrest side surfaces being closed; the filtering net framework is formed by four guide rails, and the filtering net framework is adaptive to the filtering net and used for the filtering net to move up and down in the filtering net framework; the liquid outlet pipe is arranged inside the filtering apparatus and can move up and down along with the filtering net; and the filtering net cleaning apparatus is arranged on the filtering apparatus. The filtering apparatus is designed specifically for a waste emulsion treatment system based on a power plant pulverized coal boiler, has a self-cleaning function, can meet the requirement for filtering a great amount of emulsion, and can prevent the production from being influenced by the blockage of the filtering net. By adopting the pretreatment filtering apparatus for the waste emulsion, the clean emulsion can be provided for the subsequent treatment stage of the emulsion.

Description

technical field [0001] The invention relates to a waste emulsion treatment system based on a pulverized coal boiler in a power plant, and more specifically refers to a filter device for pretreatment of waste emulsion. Background technique [0002] Emulsions are widely used in grinding, electromechanical, machining, metallurgy, forging and other metal processing processes. Emulsions are mainly used for lubrication, cooling, surface cleaning and anti-corrosion, which will inevitably produce a large amount of waste emulsions. The main The ingredients are water, mechanical impurities, base oils (mineral oils, vegetable oils and synthetic oils), fatty acids, surfactants, anti-corrosion agents and various additives. In industrial production, with the recycling of the emulsion, the alternation of cold and heat and microbial degradation will cause it to deteriorate, making it lose its original characteristics and utility, so it needs to be replaced periodically, which will continuou...

AI Technical Summary

Problems solved by technology

Due to the variety and variety of impurities in the emulsion, if there are many impurities in the emulsion, the filter will be clogged within a short period of time. Once the traditional filter is clogged during use, the filter can only be taken out manually. to clean up

The filter screens in large emulsion storage devices are generally heavy, and manual removal of the filter screens is time-consuming and laborious, which affects the normal operation of production. Some emulsions belonging to hazardous chemicals are harmful to the human body. Potential for environmental pollution

In addition to the above-mentioned shortcomings, the traditional filter screen cannot meet the requirements for the cleanliness of the emulsion after pretreatment by the "waste emulsion treatment system based on power plant pulverized coal boiler" that is patented at the same time as the present invention

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