A new drying design and manufacture of special municipal sludge dryer has the characteristics of low energy consumption and high efficiency.The heat transfer, cooling and stirring characteristics of the equipment enable it to complete the following unit operations: calcination (low temperature), cooling, drying (solvent recovery), heating (melting), reaction and sterilization.The mixing blade is also the heat transfer surface, which increases the heat transfer area per unit effective volume and shortens the treatment time.Wedge
Electroplating sludge mainly comes from solid waste produced by industrial electroplating plants. These wastes are mainly produced by liquid-phase chemical treatment of various electroplating waste liquid and electrolyte.Electroplating sludge has a large water content and complex composition, especially the heavy metals in it are more harmful. Therefore, the reduction, harmless and resource-based disposal of electroplating sludge is the focus of the current disposal of electroplating sludge.
With the help of heat source, the sludge dryer can heat the air inside the equipment to dry the materials in the drum.In this drying mode, if we want to ensure the working effect and efficiency of the sludge dryer, we need to ensure the temperature of hot air.More important is to make the inlet and outlet temperature of dryer stable.
With the acceleration of urbanization, the discharge of domestic wastewater and industrial wastewater is increasing day by day, and the output of sludge as a by-product of wastewater treatment is also increasing correspondingly.Sludge has complex components, high moisture content and is not easy to dehydrate. It contains many refractory organic pollutants, harmful heavy metals and pathogenic microorganisms, which seriously threaten the survival, health and development of human beings.Practice has proved that the utilization of sludge resources is the sludge department
With the continuous growth of the world population and the rapid development of urbanization process, the implementation of environmental protection policies by the state has been strengthened, which makes the sewage treatment rate in the whole country continuously improved. Sewage treatment plants have been built in many cities, with thousands of large, medium and small sewage treatment plants, and they are increasing rapidly.However, each sewage treatment plant is faced with the problem of how to deal with a large amount of excess sludge produced every day
Electroplating sludge is a kind of sediment with copper, chromium and other heavy metal hydroxides produced in the process of electroplating wastewater treatment.Due to the large amount of electroplating wastewater, complex composition, high COD and high content of heavy metals, if discharged arbitrarily without treatment, it will lead to serious environmental pollution.In the treatment of electroplating wastewater, a large number of electroplating sludge will be formed
Sludge drying is a process in which the dewatered sludge is heated by heat source, and the capillary water in the sludge is further removed to make the solid content of sludge reach 70% - 90%.In the drying process, heating drying is more widely used, all heating drying needs heat source.Structure, in addition to domestic sludge hollow paddle dryer, should also include sludge feeder, auxiliary heat source, air supply system, heat recovery device, dust
The mechanical form of hollow blade dryer determines its performance.In order to really understand a drying process, some design analysis is necessary.The hollow paddle dryer is relatively simple from the perspective of process technology, and its characteristics are mainly determined by the mechanical form.
PBAT is a thermoplastic biodegradable plastic, which is milky white granular semi crystalline polymer, odorless and tasteless.According to its characteristics, the vibration fluidized bed drying equipment is suitable for drying.Changzhou Yixin drying Co., Ltd. is a specialized and scientific and technological drying equipment enterprise integrating design, development, production, sales and service, among which vibrating fluidized bed is one of the company's top products.
Choose the right sludge dryer to maximize the economic benefits of customers not only, but also play a vital role in the environment.As the sludge drying equipment involves the quality of life and service, the price involves the cost of sludge drying.Generally, sludge and slime will be dried to minimize the drying time of materials, that is to choose high temperature and quick drying process.
Working principle: the hollow paddle dryer is composed of two blade shafts, W-shaped shell with jacket, frame and transmission part. The whole drying process of materials is carried out in a closed state. The organic volatile gas and odor gas are sent to the tail gas treatment device under the sealed atmosphere to avoid environmental pollution.