Sectional type dryer and drying method

Abstract

The invention relates to a sectional type drying machine and a drying method. The sectional type drying machine comprises a box body, a pre-drying conveying belt, a material overturning mechanism, a drying conveying belt, a strip cutting machine and a draught fan. The material overturning mechanism is arranged above the pre-drying conveying belt, the pre-drying conveying belt is arranged above the drying conveying belt, the strip cutting machine is arranged below the discharging end of the pre-drying conveying belt, the feeding end of the drying conveying belt is located below the strip cutting machine, and the draught fan is arranged on the box body and used for drying. According to the sectional type dryer and the drying method, a pre-drying mechanism and a drying mechanism are integrated in one device, compared with the prior art, the occupied area of the device is reduced, operation is easy, and the working efficiency is high.

Description

technical field [0001] The invention relates to the field of drying technology, in particular to a segmented dryer and a drying method. Background technique [0002] In the prior art, before the sludge is sent to the conveyor belt for drying, the dryer needs to cut the sludge into strips through a strip cutter to increase the thermal contact area of ​​the sludge, so as to quickly and evenly evaporate the water in the sludge. Effect. The strip cutter of the sludge dryer is suitable for sludge with a moisture content below 80% or other materials to be dried. When the moisture content is greater than 80%, the material cannot be cut into strips due to its strong fluidity. In the prior art, when drying high-humidity materials such as sludge with a moisture content greater than 80%, chicken manure and other materials, especially sludge with a moisture content of 85-90%, it is necessary to cut the material into the dryer and dry it. It is necessary to pre-dry in another dryer or ...

AI Technical Summary

Problems solved by technology

The strip cutter of the sludge dryer is suitable for sludge with a moisture content below 80% or other materials to be dried. When the moisture content is greater than 80%, the material cannot be cut into strips due to its strong fluidity.

In the prior art, when drying high-humidity materials such as sludge with a moisture content greater than 80%, chicken manure and other materials, especially sludge with a moisture content of 85-90%, it is necessary to cut the material into the dryer and dry it. It is necessary to pre-dry in another dryer or reduce the moisture content of the material to be dried to less than 80% by drying, pressurizing, adding ingredients, etc. The operation process is complicated, the work efficiency is low, and the cost of manpower and material resources High, when using a dryer for pre-drying, two dryers are required, the equipment cost is high and the floor area is large

Images