Emulsion Paints Dispersing Tank: Core Equipment for High-Efficiency Dispersion

The emulsion paints dispersing tank is a core equipment in the production of coatings, paints, inks, and other chemical products. It is primarily used for mixing and dispersing liquid-liquid or powder-liquid systems. This equipment integrates multiple functions including dispersion, emulsification, heating, and cooling, capable of meeting diverse production process requirements. As a critical component of the paint production line, the performance of the dispersing tank directly affects the fineness, uniformity, and stability of the final product.

The emulsion paints dispersing tank mainly consists of a tank body, agitation system, drive system, shaft seal, and various auxiliary components. The tank body is typically cylindrical or conical in shape, with a cylindrical upper section and conical lower section to facilitate material flow and complete draining. The agitation system includes the agitator shaft, dispersion disc, and blades. The drive system comprises the motor, gearbox, and frequency converter. The shaft seal, either mechanical seal or packing seal, prevents leakage. Auxiliary components include manhole, inlet port, outlet port, thermometer, level gauge, CIP spray ball, and support legs.

The material selection of the dispersing tank directly affects equipment durability and product quality. Stainless Steel 304 is suitable for water-based paints, emulsions, and general chemical products. Stainless Steel 316 offers higher corrosion resistance and is recommended for salt-containing, acidic, alkaline, or highly corrosive materials. All product-contact parts are made of sanitary-grade stainless steel with mirror polishing, ensuring no sanitary dead corners.

The working principle of the emulsion paints dispersing tank is based on the synergistic effect of high-speed shear and circulating flow.

During the dispersion process, the dispersion disc rotates at high speed driven by the motor, reaching up to 3000 rpm with a linear speed up to 20 meters per second. This rotation generates an annular flow field and strong vortex, causing materials to flow downward in a spiral pattern. Materials are then subjected to intense shear forces and friction between the dispersion disc and the tank wall, causing solid particles to be rapidly broken down and uniformly dispersed into the liquid phase. The agitator drives materials in axial and radial motion, creating multiple mixing forms including shear mixing and diffusion mixing, ensuring full circulation of materials within the tank. When equipped with an optional high-shear emulsifying head, materials are subjected to intense crushing, tearing, and squeezing forces in the gap between the stator and rotor, forming a stable and uniform emulsion.

Key technical parameters include applicability for viscosities up to 1,000,000 centipoise, dispersion speed adjustable from 0 to 3000 rpm via variable frequency drive, capacity ranging from 50 liters to 50,000 liters, and solid content up to 60 percent.

The combined design of high-speed dispersion disc and low-speed agitator balances dispersion efficiency and mixing uniformity. An optional dual dispersion disc or emulsifying head can further enhance the dispersion effect. The specially designed dispersion disc structure generates stronger shear force and vortex effect for superior results.

The equipment integrates dispersion, emulsification, heating, and cooling to meet various process requirements. Optional heating and cooling devices include jacket electric heating and coil heating systems. Support for vacuum operation avoids bubble formation and improves product quality.

Variable frequency drive speed control allows flexible adjustment based on material characteristics. A CIP (Clean-in-Place) system provides convenient cleaning and maintenance. The dispersion disc is fixed with clamping bolts for easy disassembly and reassembly.

The equipment operates with low noise and is capable of continuous stable operation for extended periods. The reliable mechanical seal prevents material leakage. Stainless steel construction ensures corrosion resistance and long service life.

The emulsion paints dispersing tank is widely used in multiple industries. In the coatings industry, it produces latex paints, industrial paints, water-based paints, and waterproof coatings. In the inks industry, it is used for water-based inks, solvent-based inks, and UV inks. The adhesives industry utilizes it for various glues, adhesives, and sealants. In the chemicals industry, it handles pigments, dyes, auxiliaries, and resins. Other application industries include pharmaceuticals, food, cosmetics, and pesticides.

When selecting an emulsion paints dispersing tank, several factors should be considered comprehensively. Production scale determines the required tank volume, with common specifications including 1000 liters, 2000 liters, 3000 liters, 5000 liters, 8000 liters, and 10000 liters. Material characteristics such as viscosity, solid content, corrosivity, and temperature sensitivity must be evaluated. Process requirements determine whether heating, cooling, vacuum, emulsification, or other functions are needed. Material requirements guide the choice between SS304 and SS316 based on material corrosivity. Automation level considerations include whether integration with a PLC control system for automated production is required.

The emulsion paints dispersing tank, as the core equipment of the paint production line, directly determines the dispersion fineness, uniformity, and production efficiency of the final product. Modern dispersing tanks have evolved from simple mixing vessels into multi-functional equipment integrating dispersion, emulsification, heating, and cooling. Combined with advanced technologies such as variable frequency drive speed control, CIP cleaning, and automated control systems, they provide strong support for efficient, high-quality production in the paint industry.

Selecting a dispersing tank that suits specific process requirements not only improves product quality but also significantly enhances production efficiency while reducing energy consumption and labor costs. It represents an important investment direction for paint manufacturers seeking technological upgrading and production capacity expansion.