Trench and sewage tank anticorrosion connecting structure

Abstract

The invention relates to a trench and sewage tank connecting structure, in particular to a trench and sewage tank anticorrosion connecting structure which is suitable for aluminum oxide plants and can resist alkali corrosion. The trench and sewage tank anticorrosion connecting structure comprises a sewage tank pit and an alkali-resisting trench. A steel plate rectangular connecting pipe is arranged at a position at which the sewage tank pit is connected with the alkali-resisting trench. A steel plate casing is sheathed outside the steel plate rectangular connecting pipe. The steel plate casing is fixed in the sewage tank pit through flat steel. A sewage tank is arranged in the sewage tank pit. The steel plate rectangular connecting pipe is inserted into the wall of the sewage tank. A steel plate flashing sheet is arranged above the steel plate casing. Alkali-resisting cement is used for the plugging between the steel plate casing and the alkali-resisting trench and between the alkali-resisting trench and the sewage tank pit. The trench and sewage tank anticorrosion connecting structure has the advantages that the tightness is good, the structure is rainproof, the service life is long, and not only can the problem of settlement between two structures be effectively solved, but also the leakage of alkali liquid is effectively prevented and the durability is good.

Description

technical field [0001] The invention relates to a connection structure between a trench and a sewage tank, in particular to an anticorrosion structure for connecting a trench and a sewage tank suitable for alkali corrosion resistance in an alumina plant. Background technique [0002] During the production process of the alumina plant, a large amount of lye is produced and flows into the sewage tank through the trench. The deformation treatment of the connection between the ordinary trench and the sewage tank and the sealing of the hole edge cannot meet the requirements of anti-alkali corrosion. During long-term use, the alkali solution will penetrate into the reinforced concrete beams, foundations and foundation soil along the joints, causing the reinforced concrete beams and foundations to be crystallized and expanded. damage, affect production, damage health, and cause soil pollution. Contents of the invention [0003] In order to solve the above technical problems, th...

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Problems solved by technology

The deformation treatment of the connection between the ordinary trench and the sewage tank and the sealing of the hole edge cannot meet the requirements of anti-alkali corrosion. During long-term use, the alkali solution will penetrate into the reinforced concrete beams, foundations and foundation soil along the joints, causing the reinforced concrete beams and foundations to be crystallized and expanded. destroy, affect production, impair health, and cause soil pollution

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