A kind of chemical sewage filtration method

Abstract

The invention discloses a chemical sewage filtering method. A rotatable filter element is fixedly suspended in a barrel body of a sewage filter barrel, the water inlet speed and the water outlet speedof the sewage filter barrel are monitored and set, so that the volume flow of inlet water and outlet water can be controlled, and the best combination values can be reached. In the process, a motor drives the filter element to work in turns in two working modes including vary acceleration and stable rotation, the rotation cycle length of varying rotation is far smaller than that of stable rotation, two pieces of inner filter cotton are adopted at the bottom of the barrel body of the sewage filter barrel, detachable trapezoid inner bottoms arranged oppositely form a drain port, and secondary absorption and filtration of sewage are finished. The method has the benefits as follows: the chemical sewage filtering device adopts a support mechanism and a filter mechanism, cleaning of a drain pipe is facilitated, filtered dirt can be prevented from blocking the drain pipe, purified water can be prevented from being polluted again, thoroughness of sewage tretament can be guaranteed, and the device is simple in structure and convenient to use.

Description

technical field [0001] The invention relates to the field of sewage filtration, in particular to a chemical sewage filtration device and a filtration method. Background technique [0002] Chemical wastewater refers to the wastewater produced in the production process of chemical plants. After biochemical treatment, it can generally meet the discharge standard. Now due to the shortage of water resources, the water that meets the discharge standard needs to be further advanced after further advanced treatment. The required recycling, because the impurities in the water are mainly suspended particles and fine wool fibers, the impurities are removed by using the principle of mechanical filtration and the use of microporous filtration technology; the existing chemical sewage filtration device has certain drawbacks in the process of use. Dirt is discharged through the sewage pipe. Long-term use can easily lead to blockage of the sewage pipe, which is difficult to clean, resulting ...

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Problems solved by technology

[0002] Chemical wastewater refers to the wastewater produced in the process of producing products in chemical factories. After biochemical treatment, it can generally meet the discharge standard. Due to the shortage of water resources, the water that meets the discharge standard needs to be further treated to meet industrial water replenishment. The required recycling, because the impurities in the water are mainly suspended particles and fine hair fibers, the impurities are removed by using the principle of mechanical filtration and microporous filtration technology; the existing chemical sewage filtration devices have certain disadvantages in the process of use, and the filtration produced Dirt is discharged through the sewage pipe. Long-term use can easily lead to blockage of the sewage pipe and make it difficult to clean, resulting in the equipment not working normally. If the internal dirt of the cleaned water is not cleaned, the filtered water will be polluted again. To improve the functionality of the chemical sewage filter device, we design a chemical sewage filter device

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