There are several kinds of industrial sludge drying equipment on the market

The heat of domestic sludge treatment and disposal market has promoted the vigorous development of sludge drying industry. Various kinds of industrial sludge drying equipment with different processes and types emerge as the times require. According to the heat source, it can be divided into solar energy dryer, natural gas dryer, steam sludge dryer, boiler waste heat utilization dryer, etc.; according to the sludge process, it can also be divided into fluidized bed type, three-stage multi loop type, hollow paddle type, etc. It is believed that many friends are more concerned about the characteristics of these industrial sludge drying equipment, what kind of materials to adapt to, and how large the scale is.

Classification of industrial sludge drying equipment in the market

1. Fluidized bed industrial sludge drying equipment

A variety of heat exchange tube bundles are arranged in the fluidized bed. Steam can be used as the heating medium. On the one hand, the steam flows into the tube bundle for heat transfer; on the other hand, the air flows through the steam heater and is heated and blown into the fluidized bed. Therefore, the fluidized bed equipment adopts the heating mode of direct heating and indirect heating. The internal parts of the fluidized bed play the functions of crushing, stirring and heat transfer, and play the characteristics of large capacity of fluidized bed. The advantage of the equipment is that the processing capacity is large, but the disadvantage is high energy consumption, which is suitable for the project with low water content requirement.

2. Industrial sludge drying equipment with hollow paddle

A number of hollow impeller shafts are arranged inside the blade, which mainly uses hot water and heat transfer oil as heating medium. The hot air flow will flow into the hollow body and the hollow blade shaft, and the sludge can be evaporated by indirect heating method. The hollow shaft with hollow blade can heat and stir the materials while heating. The advantages of the equipment are that it is clean and has little pollution to the materials, but the disadvantages are that the processing capacity is not large, and it is easy to stick, so it is suitable for projects with low production requirements.

3. Rotary rake Feiteng three stage multi loop industrial sludge drying equipment

It is composed of three-layer cylindrical cylinder nested. The two ends of the cylinder are respectively the feeding end and the discharging end. The "rotary rake crushing" breaking device and the interleaving distribution lifting system are set in the cylinder. The wet sludge will be broken quickly after entering the cylinder, and will be continuously scattered and lifted under the action of the lifting plate, so as to increase the contact area between hot air and materials. The material and hot air move in the order of inner cylinder, middle cylinder and outer cylinder, which makes full use of the heat from inner cylinder and middle cylinder, and greatly reduces heat loss. The advantages of the equipment are: 1. Large processing capacity, a single production line can process hundreds of tons of materials every day; 2. High degree of automation, only 1 ~ 2 people can operate to meet the production demand; 3. Energy saving and consumption reduction, full use of heat energy, and small heat loss, which can be combined with boiler exhaust gas utilization technology, greatly reducing the heating cost; 4. A wide range of heat sources can be selected, such as natural gas, steam, coal, fuel oil, biomass fuel, boiler waste heat and so on. The equipment has the disadvantages of large one-time investment and complex waste gas treatment.