Unmanned automatic rust removing and spraying device for inner wall of storage tank

Abstract

The invention discloses an unmanned automatic rust removing and spraying device for an inner wall of a storage tank. The device is arranged in the storage tank and comprises a fixed base and a column.A driving assembly for rotating the column is arranged on the fixed base, a lifting outer frame is arranged on the column, the lifting outer frame is connected to a driving mechanism, and the drivingmechanism is used for driving the lifting outer frame to move up and down along the column. The device also comprises two cantilevers symmetrically arranged on the lifting outer frame, and a spray gun module is arranged on the end part of each cantilever. On a basis that the cantilevers can lift along the column and the column can rotate, the inner wall of the storage tank can be automatically paint-sprayed and sand-sprayed all around through the spray gun modules on the cantilevers. Other constructors are not needed in a working site, so that the construction cost is lowered greatly, the damage of dust to the constructors is reduced, and the incidental factors of safety accidents are reduced.

Description

technical field [0001] The invention relates to the technical field of storage tanks, in particular to an unmanned automatic derusting and spraying device for the inner wall of a storage tank. Background technique [0002] The storage tank is a large-scale static equipment, and its diameter and height are generally relatively large. Among them, the diameter of a 150,000-cubic storage tank can reach 100 meters. Anti-corrosion and other treatment, but the entrance and exit of the manhole is relatively narrow, the diameter of the manhole is only 600mm, and the conventional construction platform or lifting device cannot enter. The traditional method of construction inside the storage tank is to set up scaffolding and lifting devices. However, due to the high tank body and the limited internal space of the tank body, the scaffolding is time-consuming and laborious to erect, which seriously affects the construction efficiency. [0003] At present, traditional storage tank derusti...

AI Technical Summary

Problems solved by technology

[0002] The storage tank is a large-scale static equipment, and its diameter and height are generally relatively large. Among them, the diameter of a 150,000-cubic storage tank can reach 100 meters. Anti-corrosion and other treatment, but the entrance and exit of the manhole is relatively narrow, the diameter of the manhole is only 600mm, and the conventional construction platform or lifting device cannot enter

The traditional method of construction inside the storage tank is to set up scaffolding and lifting devices. However, due to the high tank body and the limited internal space of the tank body, the scaffolding is time-consuming and laborious, which seriously affects the construction efficiency.

[0003] At present, traditional storage tank derusting and painting equipment at home and abroad are mainly used on the outer wall of the storage tank. Since the inner wall of the storage tank has no support structure, the traditional lifting construction equipment cannot be applied.

Zhang Wenyu et al. have patented the utility model of "Rust removal and anti-corrosion lifting and rotating device on the inner wall of the storage tank" (ZL201420407845.8), and "a rotatable lifting device for internal construction of the storage tank" (ZL201720961494.9) applied by our company in the early stage The utility model patents all disclose a lifting and rotating platform for the construction of the inner wall of the storage tank. These equipments have low degree of automation, high mass, and can not adjust the length of the cantilever. The small size of the top of the storage tank is difficult to construct. One construction requires multiple disassembly, which is low in efficiency. At least 3 construction workers are required, the construction quality is uneven, the labor intensity of the workers is high, and the risk factor is high

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