In the past, the normal moisture content of sludge dewatered by conventional belts in a sewage treatment plant was 75%, and the volume occupied by the equipment was large. At the same time, the active cells inside the sludge were still in an active state, causing black hair stinking and seriously affecting the environment. At this time, there is an urgent need for a device that can effectively handle the sludge, and a screw-type sludge dewatering machine emerges as a result.
The screw sludge dewatering machine can also reduce the moisture content in the sludge to less than 50%. This type of equipment is mainly composed of a bag conveying device and a press device. The cloth bag conveying device includes a cloth on the transmission belt. The cloth belt transmission mechanism and the lower cloth belt conveying mechanism under the transmission belt; and the press equipment mainly consists of a screw press device and a power adding device.
On this basis, the electrode of the power-up device in the screw-type sludge dehydrator is close to the upper cloth belt, and the screw press device is fixed on the outer side of the working end of the upper cloth belt and its telescopic end is set tightly on the upper cloth belt; The feeding end and the discharging end of the mechanism are respectively provided with a cloth nozzle and a brush scraper.
Different from the previous dehydration equipment, the screw type sludge dewatering machine can stop the rotation of the upper cloth belt and the lower cloth belt at the same time, the working end of the screw press device protrudes downwards, and the first work of pressing the upper cloth belt down against the lower cloth belt. The state, and the second working state in which the working end of the screw press retracts, the upper cloth tape and the lower cloth tape start to rotate at the same time, and the preset spacing is restored between the upper cloth tape and the lower cloth tape.
The upper cloth belt drive mechanism of the screw type sludge dewatering machine is mainly composed of an upper cloth belt drive mechanism, a tensioning device, and an upper cloth belt wrapped around the upper cloth belt drive mechanism and the tensioner device; the lower cloth belt transport mechanism is mainly composed of chains. The plate transmission mechanism is composed of a lower cloth belt wrapped on the surface of the chain plate, and a plurality of drain holes are opened on the chain plate. In addition to this, it also includes a correcting device which passes through the correcting device.
Since there are a plurality of screw press devices inside the screw type sludge dewatering machine, and it is evenly distributed along the traveling direction of the link plate transmission mechanism, the sludge can be completely dehydrated in such a structure, and an effective discharge device can be provided. The effective control of the moisture content in the sludge is achieved.