In November 2024, Greatwall Mixers provided customized side-entry mixer for a papermaking project in Hubei and dispatched a professional after-sales engineering team to the project site to guide equipment installation and commissioning, ensuring the smooth progress of the customer's production process. The project mainly involves the production of calcium carbonate slurry, providing key support for the papermaking process.

     The Importance of Calcium Carbonate Slurry in Paper Production

     Calcium carbonate slurry is a commonly used filler in paper manufacturing, which has the functions of improving paper opacity, enhancing surface smoothness, and reducing production costs. As an important component of paper, the uniformity of calcium carbonate slurry directly affects the quality of the paper. Efficient calcium carbonate storage and mixing processes can significantly enhance paper quality and production efficiency.

     Industry Pain Points

     In paper production, the process of calcium carbonate storage tanks faces multiple challenges. Firstly, calcium carbonate slurry is prone to sedimentation at the bottom of storage tanks and pipelines, affecting the uniformity of the slurry and even causing blockages. Secondly, the viscosity of the slurry is high, and its fluidity is poor, which brings difficulties to transportation and leads to equipment wear. The calcium carbonate particles in the slurry also have certain abrasive properties, increasing the frequency and cost of equipment maintenance. In addition, the pH value of the slurry is crucial to pulp quality, so ensuring the stability and suspension of the slurry is an important demand in production.

     Greatwall Mixers' Selection Advantages

     In response to the process requirements of the calcium carbonate storage tank for this project, the engineering team of Greatwall Mixers adopted side-entry mixer, with the mixer paddle shape being a three-wide-leaf removable impeller. This mixing system has multiple design advantages that can effectively meet the suspension, uniformity, and wear resistance requirements in calcium carbonate storage tanks. The three-wide-leaf design can generate a strong flow coverage, ensuring the uniform dispersion of the slurry and avoiding sedimentation. The low-shear, wide-blade design can reduce wear and extend the service life of the equipment, while significantly reducing energy consumption. The online removable structure of the mixer facilitates equipment cleaning and maintenance, reducing downtime and improving production continuity and efficiency.

     Multi-industry Application of Side-Entry mixers

     In addition to being used for uniform mixing in calcium carbonate storage tanks in the pulp and paper industry, side-entry mixers are also widely used in other industries due to their unique design and high-performance:

     Water Treatment Industry

     In large-scale wastewater treatment facilities, side-entry mixers can be used in sludge storage tanks to help keep sludge suspended and prevent sedimentation, thereby promoting the degradation of organic matter and improving water treatment effects.

     Petroleum Industry

     In oil and natural gas storage tanks, side-entry mixers are used for mixing heavy oil and other high-viscosity materials, preventing bottom scale and layering, which helps to extend the cleaning cycle of storage tanks and improve equipment efficiency.

     Food and Beverage Industry

     In storage tanks for juice or dairy products, side-entry mixers can evenly mix different components, prevent sedimentation, and maintain product consistency. At the same time, their removable structure facilitates cleaning and meets hygiene requirements.

     Biogas Industry

     In biogas fermentation ponds, side-entry mixers are used for stirring organic waste, ensuring uniform mixing and full degradation of waste. By optimizing the mixing process, it can increase biogas production and fermentation efficiency, reduce sedimentation and dead corners, and improve the stability of the biogas production process.

     Customer Needs First, Helping to Reduce Costs and Increase Efficiency

     With rich industry experience and innovative technology, Greatwall Mixers always takes the process needs of customers as the guide, integrating efficient and durable mixing solutions into equipment design. We understand the key needs of papermaking enterprises in the process of efficient production, continuously improving and optimizing equipment performance, helping customers to improve product quality, reduce operating costs, and meet the market's demand for high-quality paper. In the future, Greatwall Mixers will continue to delve into the mixing technology in the field of pulp and papermaking, contributing to the technological upgrading and industry development of customers.