Single tube mud suction machine

Purpose

The central transmission single tube suction dredger is used in large diameter circular sedimentation tanks, especially secondary sedimentation tanks, in urban sewage treatment plants and industrial wastewater treatment, to remove sludge settled at the bottom of the tank and scum on the surface of the skimming tank. This series of suction dredgers is suitable for both the secondary sedimentation tanks with surrounding static water and surrounding water discharge, as well as the secondary sedimentation tanks with central water inlet and surrounding water discharge.

Structure and working principle

The central transmission single tube mud suction machine consists of a working bridge, a skim plate, a scraper arm, a central mud collection cylinder, a driving device, a central column, a central transmission vertical frame, a mud suction pipe, a floating slag baffle, a water outlet weir plate, a water blocking skirt plate, and a counterweight block.

The equipment adopts a central transmission and vertical frame type. Sewage enters the surrounding water distribution tank, flows evenly into the tank through the bottom water distribution hole, and flows from the bottom of the tank to the center under the action of the surrounding water blocking skirt. The sludge settles at the bottom of the tank by its own weight, forming sludge separation. The driving device drives the central vertical frame to rotate, and drives the scraper arm and suction pipe to rotate. Under the action of static water pressure, the sludge uniformly enters the suction port arranged on the suction pipe, and then is discharged from the tank through the sleeve valve of the central discharge well. The size of the discharged sludge can be controlled by the lifting degree of the sleeve valve. The floating slag on the water surface is skimmed to the edge of the tank by the skimming device, and then scraped into the slag hopper by the scraper rake and discharged outside the tank.

Main technical parameters

main features 

1. The central transmission single tube suction machine adopts a cross-sectional design, and the suction port on the conical suction pipe is uniquely designed with a variable hole distance, from inside to outside, from small to large, to ensure that the discharge capacity of each suction hole matches the settling sludge amount at the bottom of the belt shaped pool, ensuring rapid suction and high sludge concentration;

2. Stirring of small sludge, fresh and non decaying return sludge, and good effluent quality;

3. The driving device adopts a combination of helical gear reducer and turbine reducer to ensure output torque and speed, with high transmission effect. The reducer is equipped with an over force torque protection device, ensuring safe and reliable operation;

4. The equipment is easy to operate and can be directly controlled remotely on-site.