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        Zhengzhou Dingli New Energy Equipment Co., Ltd.
        HOME > NEWS > Types and choices of sludge dryer

        Types and choices of sludge dryer

        Author: Dingli     Date: 2019-07-15  

          With the development of society, the production of sludge is becoming more and more extensive, and the production of a large amount of sludge has brought various effects to humans and the environment. The appearance of the sludge dryer has enabled me to obtain effective drying, which not only solves the pollution of the sludge to the environment, but also allows the sludge to be used very well and has certain economic value. Due to the different types of sludge, different sludge drying equipment is needed to solve the problem. Today, I will introduce the types and choices of sludge dryers.
          The sludge dryer can be divided into a single-channel rotary sludge dryer and a hot air rotary sludge dryer, which are respectively suitable for:
          1. Single-channel rotary sludge dryer:
          Suitable for urban sludge drying. The single-channel rotary dryer is a new type of equipment developed on the ordinary rotary dryer. Internally installed depolymerization mechanism, movable purlins, cleaning device and crushing device can dry viscous materials that cannot be handled by ordinary rotary dryers. For the sludge with a certain viscosity, small particle size and other characteristics, single-channel dryer is the best choice. The single-channel rotary dryer is used in the downstream process, and the specially designed feeding device is used to exchange heat with the high-temperature hot flue gas at the moment when the sludge enters the dryer, forming a hard shell on the surface, so that reduce the phenomenon of sludge adhering to the cylinder and stacking and blocking. In the 1/4 section of the head of the dryer, in addition to the installation of the lifting plate, the depolymerization mechanism and the linked slat wing are also installed to enhance the heat transfer, and prevent the sludge from blocking the cylinder and The lifting plate makes full use of the fast drying rate at the feeding end to make it dry quickly.
          2. Hot air rotary vane sludge dryer:
          High-viscosity sludge drying equipment generally adopts hot air rotary vane dryer. According to different sludge viscosity, double-axis rotary vane dryer (vertical, horizontal) and three-axis rotary vane dryer (horizontal type) can be used to The high-humidity material below 85% is once dried to a final water content of less than 12%, and the drying time is short, generally 2-10 minutes. Since the high-speed stirring blade stirs the moist material vigorously, the wet material can be in good contact with the hot air. The material evaporates faster in the first half of the machine, and the temperature of the hot air in the machine drops sharply. Therefore, even if high temperature hot air is used, the temperature rise of the material is not high. Typical applications such as electroplating sludge drying, paper sludge drying, oil field sludge drying, chemical sludge drying, slime drying, pomace drying, bean dregs drying, sugar residue drying, peat drying, high-humidity materials such as rare earths, organic, Mud, powder, and high-humidity materials such as inorganic compounds and chemical raw materials are dried.
          Zhengzhou Dingli is a large-scale production base for coal slime drying equipment in China. Taking science and technology investment as the forerunner, with excellent quality as the guarantee, with excellent equipment and advanced technology as the core, it is a technology enterprise integrating design, manufacturing, installation, commissioning and after-sales service. Welcome to visit our company!

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