product description

With the development of the times and the increase of various demands, chemical enterprises have also grown rapidly. However, with the development of these chemical enterprises, a large amount of industrial sludge has also been generated. As an important component of waste, chemical sludge contains a large amount of pathogens, parasites (eggs), heavy metals such as copper, zinc, chromium, mercury, salts, as well as toxic and harmful substances such as polychlorinated biphenyls, dioxins, and radioactive nuclides that are difficult to degrade.

The final disposal of toxic and harmful sludge has a significant impact on our environment, so it is necessary to achieve safety goals for the treatment of these sludge. In order to achieve these goals, the corresponding final disposal costs have also increased. How to reduce the moisture content of sludge and reduce sludge volume is currently an important solution goal.

The sludge drying equipment of Worsley New Energy Company. Provided a low-carbon and environmentally friendly solution for sludge treatment and disposal. This system mainly utilizes a closed system to perform secondary dewatering on sludge cake, using heat pump sludge dewatering technology to achieve the dewatering goal at a relatively economical operating cost, reducing the moisture content of sludge cake to20%following.

The system includes other auxiliary devices such as heat pump, conveying, drying chamber, and automation control.

Basic principles

1The circulating sludge dryer aims to break the traditional system design of sludge dewatering and then drying, with energy and heat value determined by2The group circulation system alternately exchanges heat value to discharge water from the sludge, in order to achieve the goal of drying and reducing sludge;

2The circulating air is heated by the heat exchanger inside the system, which increases the temperature of the circulating air. When the circulating air passes through the sludge, the hot air diffuses the moisture of the sludge into the closed circulating air. When the circulating air containing moisture flows through the cold and hot exchanger again, the temperature of the moisture in the air decreases to a low point due to the decrease in circulating air temperature, resulting in condensation and the formation of water droplets that are discharged. After condensation, the dry and cold air is recycled to the heat exchanger for lifting, and the water in the sludge is evaporated and discharged after passing through the sludge.

Technical advantages

• 1. Using the energy system of heat pump units as the basic application direction of the system, the design of a closed cycle system will not produce secondary pollution, reduce treatment costs, and meet the requirements of sustainable development;
  2. Energy saving and environmentally friendly circular structure, consumes less electricity, every1Energy consumption per kilogram of water0.3~0.5kWh;
  3. Professional high moisture sludge reduction capability, with a reduction in sludge moisture content of up to70%Reduction in sludge volume50%；
  4. The system runs stably, reliably, and generates minimal dust;
  5. The equipment adopts fully automatic remote control, reducing manpower and making operation simple;
  6. The device has strong environmental adaptability and is not restricted by geographical location;
  7. This device adopts a multi-layer three-dimensional architecture design, which saves a lot of land resources and prevents the phenomenon of sludge treatment occupying a large amount of land from occurring.

This sludge drying treatment system can achieve harmless, reduced, stabilized, and resourceful treatment of sludge. It has been in the application market for twenty years. The technology has reached the advanced level in China and can be widely used for sludge treatment and disposal in various chemical and various industries.