Filtering device based on sulfur dioxide wastewater treatment and use method thereof

Abstract

The invention discloses a filtering device for sulfur dioxide wastewater treatment and a use method thereof.The filtering device comprises a bottom plate, a settling tank, a treatment tank, a material guiding assembly, a filter screen, a scraper, a cleaning roller and a driving assembly, the settling tank is fixedly connected to one side of the top of the bottom plate, and the treatment tank is fixedly connected to the position, located on one side of the settling tank, of the top of the bottom plate; a material guiding assembly used for pumping water is arranged between the treatment tank and the sedimentation tank, and slag collecting frames are symmetrically and fixedly connected to the two sides of the inner wall of the treatment tank. The device is compact in structure, easy and convenient to operate and high in practicability, and waste water in the sedimentation tank can be pumped into the treatment tank through the material guiding assembly, so that the waste water is conveniently filtered; the driving assembly can drive the reciprocating screw rod and the first stirring frame to rotate, so that not only can the mixing effect of the wastewater and the medicament be improved, but also under the cooperation of the reciprocating screw rod and the rack, the scraping plate can reciprocate on the filter screen, so that the filter screen is cleaned, and the water filtering effect of the filter screen is favorably kept.

Description

technical field [0001] The invention belongs to the field of filtering devices, in particular to a filtering device for treating wastewater based on sulfur dioxide and a method for using the same. Background technique [0002] Sulfur dioxide is the most common, simplest, and irritating sulfur oxide, a colorless gas, and one of the main pollutants in the atmosphere. Due to the consumption of a large amount of coal in the production of vanadium and titanium metal, and the coal contains sulfur, therefore Sulfur dioxide will be generated during combustion. In order to cool down the combustion tail gas, it needs to be passed into the spray tower. At this time, the water inside the spray tower will absorb the sulfur dioxide in the tail gas. In order to realize the recycling of water, it is necessary To treat wastewater containing sulfur dioxide, the existing treatment method is usually to add medicine and precipitate and then filter. Although this method is simple and efficient, i...

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Problems solved by technology

[0002] Sulfur dioxide is the most common, simplest, and irritating sulfur oxide, a colorless gas, and one of the main pollutants in the atmosphere. Due to the consumption of a large amount of coal in the production of vanadium and titanium metal, and the coal contains sulfur, therefore Sulfur dioxide will be generated during combustion. In order to cool down the combustion tail gas, it needs to be passed into the spray tower. At this time, the water inside the spray tower will absorb the sulfur dioxide in the tail gas. In order to realize the recycling of water, it is necessary To treat wastewater containing sulfur dioxide, the existing treatment method is usually to add medicine and precipitate and then filter. Although this method is simple and efficient, in the actual operation process, the mixing effect of wastewater and medicine is poor. At the same time, in When filtering it, the filter screen is easy to clog, which affects the filtering effect

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