Urban sewer pipeline anti-corrosion process method

Abstract

The invention discloses an urban sewer pipeline anti-corrosion process method. A liquid spraying device in the method comprises a bottom plate, supporting plates are arranged at the positions, close to the front side and the rear side, of the top of the bottom plate, two power rollers are arranged at the top of the bottom plate, and the distance between the two power rollers gradually increases towards the top, and a slicking and spraying device is connected to the tops of the two supporting plates in an inserted mode. Before a spray head sprays liquid, the inner wall of a sewer pipeline is scraped by a scraper, so that the anti-corrosion treatment effect is ensured; then, cleaned objects scraped by the scraper can be gathered on the surface of the scraper, a part of the cleaned objects can enter a bearing frame formed by sinking the middle of the scraper downwards, the height of the bottom of the inner side of the bearing frame gradually becomes smaller from the middle to the front side and the rear side, and therefore the cleaned objects falling into the bearing frame slide to leakage holes along the bottom of the inner side of the bearing frame; and the cleaned objects fall to the outer side of the sewer pipeline from the leakage holes, so that the cleaned objects fall quickly.

Description

technical field [0001] The invention belongs to the technical field of pipeline anticorrosion, and in particular relates to an anticorrosion process method of urban sewer pipelines. Background technique [0002] With the development of the economy, the discharge of living and production sewage is increasing, which brings great pressure to the environment. An important component that causes pollution in domestic and production sewage is sulfide. Sulfate in water will be reduced to sulfide by sulfate-reducing bacteria (SRB). The discharge of sulfide will cause the following problems: first, sulfide (such as hydrogen sulfide) It will corrode the concrete of sewage pipes; secondly, hydrogen sulfide is a toxic gas, which is dangerous to sewer workers; thirdly, hydrogen sulfide has obvious odor, which has adverse effects on production and life. Several factors in sewage including pollution components, biofilm, sediment, temperature, air, etc. are related to the evolution of sulfi...

AI Technical Summary

Problems solved by technology

An important component that causes pollution in domestic and production sewage is sulfide. Sulfate in water will be reduced to sulfide by sulfate-reducing bacteria (SRB). The discharge of sulfide will cause the following problems: first, sulfide (such as hydrogen sulfide) It will corrode the concrete of sewage pipes; secondly, hydrogen sulfide is a toxic gas, which is dangerous to sewer workers; thirdly, hydrogen sulfide has obvious odor, which has adverse effects on production and life

[0003] When the existing sewer pipe is produced, there will be protrusions or sundries on the inner wall corresponding to the mold joints. After spraying epoxy resin liquid, the protrusions or sundries on the inner wall will fall off, which will cause The epoxy resin liquid falls off together, resulting in no epoxy resin layer formed here, and then it will be corroded first, and then slowly corroded to the surroundings, causing the corrosion area to become larger and larger, resulting in damage to the internal anti-corrosion layer

[0004] Therefore, it is necessary to invent an anticorrosion process for urban sewer pipes to solve the above problems, which can treat the unevenness when spraying epoxy resin liquid, prevent the surface from falling off, and affect the anticorrosion effect

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