Intelligent self-cleaning dual-curing coating system

Abstract

The invention belongs to the technical field of coating equipment, and specifically discloses an intelligent self-cleaning dual-curing coating system. The coating system comprises a spray gun, a feeding system, an ultraviolet light source device and a control system. The system disclosed by the invention can be used for construction for a single-component coating, a dual-component coating and a multi-component coating by combining a self-curing technology with a photo-curing technology; a series-excited motor is adopted for the spray gun, and a rotor rotating at a high speed, of the series-excited motor, enables two raw materials charged into the spray gun to be adequately mixed under the rotation of the high-speed rotor and then ejected; and the feeding system is capable of automatically adjusting and correcting pressures of charge pipelines for the two components, thus guaranteeing the accuracy of a mixing ratio of the two components, and improving the performance of a coating layer after coating curing. The system is capable of automatically controlling the working sequential logic of pumping, pressurizing and spray-coating, has the advantages that operation is simple and convenient, automatic coating can be realized, the performance of a coating film is excellent, and the like, and is free from VOC, non-toxic and odourless during a construction process. The system disclosed by the invention is capable of reserving the excellent anticorrosive and waterproof performances of the spray-coated polyurea coating, simplifying the construction difficulty and construction requirements of the coating, and optimizing the coating effect.

Description

technical field [0001] The invention belongs to the technical field of coating equipment, and in particular relates to an intelligent self-cleaning dual-curing coating system. Background technique [0002] Spray Polyurea Elastomer (SPUA for short) technology is a new type of "universal" coating technology researched and developed abroad to meet the needs of environmental protection. It is known as the greatest invention in the field of coatings and coating technology at the end of the 20th century. . The raw materials of SPUA coatings are divided into two groups: isocyanate compounds and amine compounds, both of which can react quickly without a catalyst to form a dense, continuous, seamless, and tough elastomeric coating. The coating has excellent physical properties and corrosion resistance, can be used in the field of corrosion protection, and has great application prospects in the construction of various large-scale infrastructures. This technology has been used in dev...

AI Technical Summary

Problems solved by technology

However, the SPUA technology still has defects: 1. The feed hole of the spray gun is very small, and the two raw materials are mixed by high-speed turbulent mixing and collision, and the contact area is small, so the mixing uniformity is difficult to be guaranteed, which affects the coating performance.

In this case, it is difficult to ensure airtightness under high pressure, and it is easy to cause leakage of raw materials during operation.

The raw materials of the two components solidify immediately upon contact, and the reaction time is less than 10 seconds. Therefore, once a leak occurs, it will easily cause blockage of the spray chamber and bring inconvenience to the construction.

3. The pressure in the cavity is prone to fluctuations, which will affect the mixing uniformity of the components and change the mixing ratio. Therefore, the thin coating effect of this process is poor

5. This process belongs to the rapid-response spraying system, which requires very high control of reaction conditions. The existing equipment also includes a temperature control system, so the operation is relatively complicated, and it is very difficult to uniformly coat

In the current application, almost all construction equipments rely on imported products, and the construction cost is very high

Images