3results about How to "Reduce compactness" patented technology

The embodiment of the present disclosure provides a powder covering device for laser cladding and an operating method thereof, a rear side of a cladding machine tool is provided with a mechanical arm, one end of the mechanical arm is provided with a cladding head, a lower end of the cladding head is provided with a powder outlet nozzle, a lower side of the powder outlet nozzle is rotatably provided with a sealing cover, an upper side of one side of the cladding machine tool is provided with an anti-static fan, one side of the powder outlet nozzle is provided with a cladding base material cleaning mechanism, and the cladding base material cleaning mechanism comprises a driving ring motor, a fixed seat, a cladding base material cleaning mechanism electric telescopic cylinder, a cleaning ring, a driven gear and a driving gear. The present disclosure can solve the problem that when the powder is transported in the pipeline, frequent friction and collision between the powder and the pipeline wall will cause the transfer and accumulation of electric charges, thereby generating static electricity, and the static electricity adsorption will cause the powder to accumulate on the inner wall of the pipeline, reduce the effective conveying area of the pipeline, and thus reduce the conveying efficiency of the powder, and cause the coating thickness to be uneven.

This invention discloses a trenchless removal device and method for abandoned pipelines. A vibrating device and a grouting pipe are installed on an electric trolley. Before removal, the trolley vibrates the abandoned pipeline back and forth to reduce the density of the surrounding soil, facilitating removal. Before grouting, an air bladder is inflated so that it abuts against the inner wall of the abandoned pipeline, sealing the gap between the grouting pipe and the abandoned pipeline to prevent concrete from flowing back into the abandoned pipeline during grouting. Grouting is performed simultaneously with pipeline removal, promptly filling the voids left after removal. The concrete solidifies rapidly after flowing out of the grouting pipe, minimizing ground settlement. This construction method efficiently removes underground pipelines, completing the removal and grouting processes in one operation, offering advantages such as high safety and efficiency.