37results about How to "Realize automatic dredging" patented technology

The invention relates to a stainless pulse silt-removal water-distribution device of a water circulation cooling tower, which comprises a silt discharge valve, a water-distribution head and a water-distribution pipe, wherein the silt discharge valve comprises a valve body, a valve core, a pressure regulating head, a valve rod, a locking nut, a spring and a check ring; the water-distribution head comprises a rotary body, a set screw, an adapter sleeve, a mandrel, a small sealing ring, an upper cover, a screw, a small bolt group, a base, a large bolt group and a large sealing ring; one end of the water-distribution pipe is connected with the water-distribution head, and the other end of the water-distribution pipe is connected with the silt discharge valve; the center of the rotary body is in a cylinder shape; pipe orifices connected with the water-distribution pipe are uniformly distributed on the intermediate periphery of a cylinder wall; the upper edge flange of the cylinder wall is connected with the upper cover by using the screw; rotating blades are uniformly distributed below the inner side of the cylinder wall; and the lower inner diameters of the rotating blades are in clearance fit with the excircles of the steps of the base. The stainless pulse silt-removal water-distribution device disclosed by the invention requires that the upper cover and the rotary body easily rotate around the mandrel, the rotary body is not scratched with the base, the valve body, the valve core, the water-distribution pipe, the upper cover, the rotary body and the base are manufactured by adopting metal materials, and an overflowing surface is coated with PTFE (Polytetrafluoroethylene) materials; and the water-distribution pipe and the water-distribution head of a small-sized water circulation cooling tower are directly manufactured by adopting the PTFE materials.

The invention relates to a maximum output automatic dredging control method of a cutter suction dredger, which belongs to the technical field of automatic control of engineering ships. In any automatic dredging mode, the dredging control system of the cutter suction dredger is based on working conditions. Calculate the critical flow rate of the pipeline through the estimator, and jointly control the cutter motor, traverse winch, bridge winch, steel pile trolley, vacuum release valve and other cutter suction dredger dredging equipment to realize the dredger automatically according to the construction process. For excavation operations, under the premise of ensuring that the flow rate of the pipeline is greater than the critical flow rate, the traverse speed should be increased as much as possible, so as to achieve automatic dredging with maximum output. The invention significantly improves the actual production process of the dredger, can greatly reduce the labor load of dredging operators, reduce the differences in operations among different operators, improve construction quality, ensure equipment safety, and reduce fuel consumption.

The invention relates to an automatic feeding and dredging system for waste gas treatment catalysts. A feeding trolley can move along a feeding track to enter or withdraw from a catalyst dredging device. The catalyst dredging device comprises a left-right travelling mechanism, front-back travelling mechanisms, lens lifting mechanisms and dredging head feeding mechanisms. The left-right travellingmechanism comprises a fixed lead screw and a plurality of first nuts. The first nuts sleeve the fixed lead screw in a left-right spaced mode. The front-back travelling mechanisms comprise rotating lead screws and second nuts sleeving the rotating lead screws. The rotating lead screws rotate under power drive, and drive a vertical mounting base to move forwardly and backwardly through the second nuts. Each lens lifting mechanism comprises a first gear and rack mechanism and a camera. Each dredging head feeding mechanism comprises a second gear and rack mechanism and a dredging component. The automatic feeding and dredging system has the advantages that through independent control of each front-back travelling mechanism, each dredging component and each camera are driven independently, so that blocked portions of honeycomb ducts can be positioned by camera shooting and then dredged automatically, and automatic feeding can be achieved.