Energy saving and environmental protection sludge drying equipment -- a new type of hollow paddle dryer

In order to continue the high-quality performance of sludge in safety, reliability and green, Changzhou Haomai, which has always been in the forefront of sludge treatment technology, has independently developed a hollow blade dryer after years of hard work after integrating international production process and localization status.

As an important product in sewage treatment, sludge disposal is becoming more and more popular in 2011, and has become a new industrial blue ocean. Today, five years later, the optimism in the market has disappeared. However, for Changzhou Haomai drying Engineering Co., Ltd., sludge treatment is still a topic of the times that can not be ignored.

Sludge, produced in the treatment of industrial wastewater and domestic sewage, is a thick substance between liquid and solid. In other words, it is the inevitable product in the process of water treatment. However, few people know that the sludge industry lags behind for more than ten years compared with the booming sewage treatment.

Sludge and sewage, treatment and disposal, should be closely linked to each other, but now they often fall apart. The first splitting occurred between sewage and sludge. At present, the annual output of sludge in China is about 70 million tons, of which municipal sludge and industrial sludge account for half. Due to the backward level of harmless disposal and the limitation of the concept of "heavy water and light mud", most cities have long been trapped in the siege of sludge.

The second cleavage occurred in the sludge treatment and disposal room. In the opinion of Dai Xiaohu, Dean of Environmental College of Tongji University, on the one hand, the difference of sludge quality in China has brought difficulties in the application of treatment technology, but on the other hand, the research on sludge quality is not enough. "Because of the particularity of sludge quality in China, it is necessary to have better technological innovation to solve the problem. This is a new opportunity for the relevant enterprises. " Dai Xiaohu said.

First, the related technology and equipment need to be improved. In this regard, as the "key backbone enterprise" of deep cultivation of drying equipment, Changzhou Haomai drying Engineering Co., Ltd. has a deep feeling: Taking "customer satisfaction" as the enterprise orientation, regarding "learning and innovation" as the core power of enterprise development, maintaining the enterprise mentality of "pioneering and enterprising", fully highlighting the forward concept of "pragmatic rationality", and acting as the sludge treatment technology equipment Explore the subject.

We have an understanding of sludge treatment, that is, we must take the only way of scientific and technological innovation. What Changzhou Haomai pursues is to strictly control every link of equipment manufacturing, and strive to give full play to the competitive advantage of "Haomai manufacturing". In this way, while winning market praise, Changzhou Haomai will also be able to reduce the comprehensive cost.

At the same time, we should pay attention to the application of new technology. As in the field of drying equipment manufacturing, hot air is tangent into the bottom of the dryer to form a strong rotating wind field driven by the agitator. Based on this, XSG series rotary flash dryer with low energy consumption, high efficiency and environmental pollution elimination came into being. And similar new technology is constantly emerging in Changzhou Haomai's products, and formed an irreplaceable market advantage.



In fact, for technological innovation, Changzhou's heroic self-confidence comes from the "people-oriented" development strategy. Facing the era proposition of fine environmental governance and the increasingly competitive environmental protection industry, Changzhou Haomai has vigorously introduced professional and technical talents in recent years. "We not only have a considerable number of senior technical predecessors, but also cultivate a large number of emerging forces." What is more gratifying is that Changzhou Haomai has demonstrated outstanding innovation ability in the fields of independent research and development, engineering design and product manufacturing. Obviously, "Heaven rewards diligence", which is a powerful reference for Changzhou Haomai's quality and strength.



When it comes to the reason why the sludge is difficult to treat, the person in charge of Haomai Changzhou pointed out that the moisture content of 90% is an important inducement that can not be underestimated. In its opinion, the moisture content of the sludge after initial dewatering can reach 80%. However, a series of problems, such as high transportation cost, large stacking area, squeezing the storage capacity of landfill site and causing secondary pollution of landfill leachate, result in sludge not being favored by landfill sites. Therefore, how to dewater sludge is very important.



In order to continue the high-quality performance of sludge in safety, reliability and green, Changzhou Haomai, which has always been in the forefront of sludge treatment technology, has independently developed a hollow blade dryer after years of hard work after integrating international production process and localization status. Hollow paddle dryer is a kind of horizontal stirring continuous drying equipment which is based on heat conduction. Because the shape of the mixing blade is similar to the paddle, it is named as this.



As a manufacturing equipment which advocates energy conservation and environmental protection, Changzhou Haomai's hollow paddle dryer is "unwilling to be the last". Because the operation process mainly relies on indirect heating of heat conduction, the efficiency of the equipment can be effectively improved by a large amount of retained heat utilization. At the same time, with the stirring and mixing will make the material turn violently, the hollow paddle dryer can obtain higher heat transfer coefficient, and the characteristics of small floor area will follow.



In addition, due to the unique blade structure, the material is continuously squeezed and relaxed alternately in the drying process, which makes the filling rate in the drying chamber far more than 80%. After that, by adjusting the feeding speed, stirring shaft speed, material filling degree and other parameters, Changzhou Haomai's hollow paddle dryer will promote sludge dewatering and drying to the specified effect. At present, the equipment has been used in municipal sludge, printing and dyeing sludge, papermaking sludge, electroplating sludge and other key industries. With continuous production, high-efficiency kinetic energy and reasonable cost, the equipment has won a lot of market praise.



It can be said that the wide application of sludge drying equipment has laid a solid foundation for breaking the dilemma of urban sludge treatment, improving the supply quality of sewage treatment industry, and building a strategic system of water cup and people's livelihood. Undoubtedly, reform is on the way. What Changzhou Haomai adheres to is to conform to the proposition of the times, meet the market demand, and contribute to the prairie fire of "heroic manufacturing"