46results about How to "Reduce sludge volume" patented technology

Disclosed is an electrolytic cell for removal of material from a solution. The cell comprises a cavity for receiving the solution, a rotatable electrode located within the cavity, a counter-electrode in spaced relation to the rotatable electrode, and an ultrasonic generator coupled to said cavity for directing ultrasonic energy toward the rotatable electrode to displace solid material extracted from the solution by an electrochemical reaction. The rotatable electrode may form a cathode, and the counter-electrode may form an anode, wherein metal in the solution is deposited on the cathode as a metal powder, such that the ultrasonic energy displaces the metal powder from the cathode. Alternatively, the rotatable electrode may form an anode, and the counter-electrode may form a cathode, wherein organic waste in the solution is deposited on the anode, such that the ultrasonic energy removes the deposited organic waste from the anode.

The invention discloses an underground pipeline dredging method. The underground pipeline dredging method is characterized in that sludge in a pipeline is gathered to a designated position through a pipeline dredging device and then removed out of the pipeline through external force. By means of the underground pipeline dredging method, the dredging effect of the pipeline can be effectively improved, the amount of sludge in the pipeline is greatly lowered, the occurrence ratio of sludge in the pipeline is controlled below 5%, smoothness of the pipeline is ensured, and drainage efficiency of an urban drainage system is improved.

The invention discloses a pipeline dredging device. The pipeline dredging device is characterized in that the pipeline dredging device comprises a dredger, the dredger comprises a base and a baffle, the cross section of the base is in an arc shape, the base axially extends by a selected length, the base comprises an inner surface and an outer surface which is opposite to the inner surface, the baffle is arranged on the inner surface of the base and protrudes out of the inner surface, the dredger moves along a blocked pipeline, and the baffle can push sludge in the blocked pipeline to a designated position. By means of the pipeline dredging device, the pipeline dredging effect can be effectively improved, the amount of sludge in the pipeline underground can be greatly lowered, the sludge rate in the pipeline is controlled below 5%, smoothness of the pipeline is ensured, and drainage efficiency of an urban drainage system is improved.

The invention discloses a method for reducing silt coal slime in an underground water sump of a large water coal mine. The method comprises the steps as follows: firstly, before working face mining, a water draining roadway is arranged in a position lower than the elevation of a transport belt roadway, through holes are formed in the transport belt roadway at intervals, and the transport belt roadway is communicated with the water draining roadway through the through holes; a vibrating sieve is mounted at the tail end of the water draining roadway and a coal transporting roadway is arranged behind the vibrating sieve; transport equipment is arranged in the coal transporting roadway; two water storage deposition pools are arranged on one side of the water draining roadway and water inlet gates are arranged at the inlets of the water storage deposition pools; the water storage deposition pools are communicated with the underground water sump; when mining, a water coal body is discharged into the water draining roadway from the through holes and filtered by the vibrating sieve, and filtered coal is transported to an underground coal bunker; and coal slime water after filtering is deposited by the water storage deposition pools so as to achieve coal-water separation. According to the method, the coal slime water is purified in advance before entering into the underground water sump, so that the silt amount of the underground water sump is reduced and the water-holding capacity of the water sump is guaranteed.

The invention belongs to the technical field of nuclear power plant chemistry, and particularly relates to a nuclear power plant secondary circuit thermal system morpholine-ammonia synergistic chemical control method. A purpose of the present invention is to reduce the nuclear power plant secondary circuit thermal system equipment corrosion rate, reduce the amount of the corrosion product entering the steam generator, and reduce the mud residue deposition on the steam generator. According to the nuclear power plant secondary circuit thermal system morpholine-ammonia synergistic chemical control method, morpholine and ammonia are simultaneously added to the water of a nuclear power plant secondary circuit thermal system, wherein the morpholine concentration and the ammonia concentration in the nuclear power plant secondary circuit thermal system are synergistically controlled at 10-20 mg / kg and 2-5 mg / kg, such that the pH value of the water in the nuclear power plant secondary circuit thermal system is 9.7-10. With the method of the present invention, by synergistically controlling the concentrations, the corrosion on the whole secondary circuit thermal system equipment is minimized.