The QXS bridge-type sand suction machine is mainly used for sand water treatment in the aeration grit chambers of urban sewage treatment plants or waterworks, which lifts the larger particles such as sand and coal slag settled at the bottom and the sewage mixed liquid into the sand discharge trough beside the tank. Oil skimming and scum skimming devices can be added upon user requirements.

The equipment is of the mobile bridge type, pump suction type or air lift type, and stops at the water inlet end when the sand suction machine is not working; When the sand suction machine is working, under the command of the electrical control, when traveling along the water flow, lower the skimming plate first, scrape and collect the scum and skim it into the steel skimming trough at the end of the chamber; When moving in the opposite direction, the skimming rake is lifted off the liquid surface to prevent the scum from moving in the opposite direction; The sand water at the bottom of the chamber is discharged into the sand collection trough at the edge of the chamber through a suction pipe by the suction pump or air-lift device and then flows into the sand-water separator through a pipe for further processing. This back-and-forth working movement is carried out to achieve the purpose of suction, discharge and skimming of sand.

1. Reciprocating sand suction and skimming, high efficiency, simple structure;

2. Use vortex low-lift submersible pump for sand suction, no need for water diversion operation, no clogging, wear resistance, being safe and reliable;

3. One-way skimming, the surface of the pool is relatively clean;

4. The sediment sand has been aerated and circulated, the organic matters on the sand grains have been washed off, and the discharged sand grains are free of odor;

5. The equipment is easy to operate, and the operation of the equipment can be directly controlled on site/remotely.