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In chemical, food, pharmaceutical and other industrial industries, the transportation and processing of highly viscous liquids have always been a key problem in the production process. Highly viscous liquid pumps emerged as the times require. With their unique and effective performance, they have become equipment to solve the problem of high-viscosity medium transportation.

Highly viscous liquid pumps fully consider the characteristics of high-viscosity fluids and adopt a special structure to reduce delivery resistance. The pump chamber usually has the characteristics of large diameter and wide flow channel to prevent viscous liquid from being retained or blocked in the pump body. Core components such as impellers or rotors are specially designed, such as using large blades and low-speed structures to reduce the shear force on the liquid, prevent highly viscous liquids from changing their physical properties due to excessive stirring, and confirm the stability of the material conveying process.

In terms of working principle, highly viscous liquid pumps mostly use volumetric delivery methods. Taking a gear pump as an example, a pair of intermeshing gears rotate to form a vacuum on the incoming side, sucking highly viscous liquid into the pump chamber. As the gears rotate, the liquid is enclosed between the teeth and squeezed along the inner wall of the pump to the outlet for discharge. Screw pumps rely on the rotation of intermeshing screws to form multiple sealed chambers, pushing the liquid to move along the axial direction to achieve continuous and stable transportation. This working mode can provide stable flow output and avoid pulse fluctuations from affecting the meticulousness of the production process.

Highly viscous liquid pumps have many unique features. First of all, it has strong self-priming ability and can suck high-viscosity liquid into the pump chamber at an appropriate speed without auxiliary devices, making it suitable for complex working conditions. Secondly, the metering accuracy is good. By accurately controlling the pump's speed, displacement and other parameters, it can achieve detailed metering and transportation of highly viscous liquids. The error range can usually be controlled within ±1%, meeting the strict requirements of the production process on material proportions. Furthermore, it has excellent sealing performance and uses special mechanical seal or packing sealing technology to effectively prevent leakage of high-viscosity liquids and protect the safety of the production environment and product quality. In addition, the pump also has excellent performance and corrosion resistance (based on actual reports). The pump body and key components are mostly made of alloy, stainless steel or special engineering plastics, which can adapt to highly viscous liquids of different chemical properties and extend the service life of the equipment.

In practical application scenarios, highly viscous liquid pumps play an important role. In the food industry, it is used for the transportation and filling of highly viscous foods such as chocolate spread, honey, and jam; in the chemical industry, it can handle raw materials such as coatings, inks, and adhesives; in the pharmaceutical industry, it is suitable for the production and transportation of pharmaceuticals such as ointments and syrups. With the continuous development of industrial technology, high-viscosity liquid pumps are also continuing to innovate and upgrade, moving towards intelligence, effectiveness, and energy saving, providing solutions for high-viscosity fluid transportation in various industries, and promoting the development of related industries.