Preparation process of waterproof coating

Abstract

The invention relates to a preparation process of waterproof coating. In the process, powder stirring equipment is adopted and comprises a shell, a primary stirring device, a secondary stirring deviceand a screening device. When the powder stirring equipment is used for stirring waterproof coating powder, the specific technological process is as follows: preliminary stirring, screening, secondarystirring and discharging. The primary stirring device comprises a stirring motor, a stirring shaft, transverse stirring rods, vertical stirring rods, a first connecting rod, a second connecting rod and an extrusion ring. Powder is stirred through the stirring rods which are arranged in the transverse direction and the vertical direction in a staggered mode; the vertical stirring rods can linearlymove left and right relative to the transverse stirring rods in the stirring process; the horizontal stirring rods can be cleaned while the stirring range is expanded, and in addition, the screeningdevice is driven to shake up and down in the stirring and screening process, so that the distribution uniformity of powder is improved, and the purpose of improving the stirring and screening effectsis achieved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a preparation process of waterproof coatings. Background technique [0002] The waterproof film formed after the waterproof coating is cured has certain extensibility, elastic-plasticity, crack resistance, impermeability and weather resistance. Compared with ordinary coatings, the waterproof performance is better, and it can play the role of waterproof, anti-seepage and protection. Moreover, the waterproof coating also has good temperature adaptability, is easy to operate, and is easy to repair and maintain, so it has been widely used. [0003] Waterproof coatings include two parts: powder and liquid materials. During the production and preparation of powder materials, the raw materials need to be fully stirred. The quality of the stirring effect directly affects the performance of waterproof coatings. At present, there are still some problems in the mixing process of powder mat...

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Problems solved by technology

[0004] (1) Since the powder is generally light in quality, it will disperse and adhere to the mixing equipment during the mixing process. If the powder adhering to the mixing equipment is not cleaned in time, it will not only cause waste of raw materials, but also cause waste. It will lead to serious wear of the parts in the mixing equipment and shorten the service life of the mixing equipment. In addition, the stirring shaft, mixing blade and other parts of the mixing equipment that are in direct contact with the powder are installed in a fixed position, and the scope of action is limited, so it is impossible to guarantee the powder in every place. are thoroughly stirred;

[0005] (2) After stirring, the powder needs to be screened, and the powder that meets the requirements can enter the next processing flow, but now the screening of powder is mostly done through the sieve plate, and the sieve plate is often in a fixed state during the screening process. The falling powder is easy to accumulate on the sieve plate, which affects the screening effect

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