Characteristics of sludge dryer:

Sludge material dryer is an energy-saving dryer designed by absorbing foreign advanced technology and combining the national conditions. It has complete specifications, reliable operation and high thermal efficiency.

Sludge dryer product introduction:

The high temperature flue gas is directly introduced into the dryer by the system fan, and the sludge is transported into the dryer by the screw feeder. Under the joint action of the dryer's scattering mechanism, guide plate, plate and other structural components, the wet materials are continuously dispersed, picked up and scattered, fully contacted with the high-temperature flue gas, and a physical process of mass transfer and heat transfer occurs to dehydrate and dry the materials. The materials dried by the first stage dryer are sent to the second stage dryer through the screw feeder. The hot air enters the second stage dryer from the outlet of the first stage dryer through the pipeline, and continues to conduct further mass transfer and heat transfer with the materials. The materials are dried to the target water content in the second stage dryer, and the qualified products are discharged from the discharge port. The drying tail gas and materials discharged from the secondary dryer are separated from the finished products through the dust remover, and the tail gas from the cyclone dust remover is sent to the water film dust remover through the system induced draft fan for washing and then discharged into the atmosphere.

Product features:

1. Advanced technology and reliable performance

In this drying device, the surface area of wet materials is increased after they are quickly broken, and they are fully contacted with high-temperature hot flue gas, forming a high temperature difference and rapid heat exchange. At the same time, due to the existence of the dispersing device, the movement of the crushed materials in the high-temperature hot air is accelerated and the materials are evenly distributed within the effective area range, increasing the heat exchange area and relative speed between the materials and the hot air. The high-speed rotation of the dispersing device simultaneously improves the air flow field and heat distribution in the dryer, both of which increase the evaporation intensity per unit volume. The dehydration and granulation process in the dryer is very intense and rapid. The drying and dehydration intensity of the special sludge dryer is 3 to 5 times that of the ordinary drying equipment.

2. Good economy and low investment cost

The system adopts the direct feeding mode of wet sludge, without any return material, and without the mixer, elevator and other equipment required by the general sludge drying system; At the same time, drying and granulation are completed. The wet sludge is dried and granulation is completed at one time in the dryer, and the product moisture is uniform and stable. At the same time, the system does not need to be equipped with steam or heat transfer oil required by the general drying system to provide heat, and does not need boilers, boiler rooms and other facilities. The saving of system floor area and auxiliary equipment investment greatly reduces the investment cost.

3. Strong adaptability - suitable for semi drying and fully drying disposal of sludge

The direct sludge dryer has a large scope of operation and adjustment, which can adapt to different types of sludge drying. Even if the feed moisture fluctuates, the system can still ensure stable operation. The sludge drying system adopts the "no return" technology. The fresh sludge with water content of 80-85% does not need to be mixed with any dry sludge. It can be directly pushed into the special sludge dryer from the feeder for drying to obtain the corresponding semi dried sludge product with water content of 30-45%. It can also be matched with the corresponding system to directly obtain the fully dried sludge product with water content of 10-12% for the next step of sludge incineration, harmless landfill or sludge composting, Effectively reduce and recycle sludge.

4. Clean and environment-friendly, without secondary pollution