What equipment parameters should be paid attention to when large sludge dryer is running

In recent years, large-scale sludge dryer has been widely used in the field of sludge treatment and disposal. The heat source of the equipment is widely available, including steam, natural gas, biomass fuel, boiler tail gas, fuel oil, coal and other combustible gases. It can be dried to the required moisture content standard at one time. The model configuration can be customized. The drying process is energy-saving and environmental friendly, and the finished product is dry and wet evenly. So what are the structural features of such a large sludge dryer and what equipment parameters should be paid attention to during operation?

Structural characteristics of large sludge dryer

The production line of large sludge dryer is composed of several devices, including heating equipment, conveying device, feeding and discharging system, drying host, dust removal equipment, induced draft fan, PLC automatic control system, etc. The wet materials and hot air enter the drying machine to complete the drying operation, so the equipment parameters of the drying machine are the key to the quality of the finished products.

Equipment parameters of large sludge dryer

1. Increase the contact area between materials and hot air

Different combinations and different distribution of lifting plates play an important role in preventing sticking and accelerating drying speed in large sludge dryer. In the process of high-speed and high-speed mass transfer, the particles will form a heat transfer curtain in the cross-section, and the particles will be fully dispersed in the rising and falling process.

2. Adjust the speed reasonably

In the drying process, the speed of large sludge dryer can be adjusted according to the properties of drying materials and different drying States, so as to ensure the drying quality of finished products. Frequency conversion speed regulating motor and other devices can be configured for the equipment.

3. Environmental protection parameters up to standard

In the normal production process of large-scale sludge dryer, it is inevitable to produce waste gas which needs to be treated. In order to meet the environmental protection requirements, tail gas collection and purification equipment will be designed at the tail of the dryer. Through the multi-stage dust removal technology, the waste gas can be effectively purified, reaching or higher than the local environmental protection parameter standard.

4. Reduce heat loss

Reducing heat loss is the key to ensure the energy saving and environmental protection of the equipment. In addition to strengthening the front and rear sealing of the cylinder, the multi return drying technology can be adopted, and the cylinder structure composed of three-layer rollers can be nested. In this way, the heat emitted by the inner and middle cylinders can be fully utilized, and the heat loss during the operation of the large sludge dryer is reduced. The equipment has a long service life and installation and maintenance Convenient.