45results about How to "Reduce secondary investment" patented technology

The invention provides a solvent extraction process for coal tar slag. The prior art has three methods for treating tar slag as follows: 1, the tar slag is transiently stacked in nature, and due to wind, sun or rain, tar, phenol, as well as high-content sulfur / nitride in the tar slag pollute the atmosphere and damage soil and water; 2, the tar slag is taken as brickyard fuel, but as the tar slag contains a large amount of organic carbon, a large amount of black smoke is produced during combustion, and unpleasant odor of hydrogen sulfide causes serious damage to the living environment of residents around brickyards; and 3, the tar slag is mixed with pulverized coal and used as boiler fuel of power plants, resulting in environmental pollution although the calorific value of coal is improved. The process consists of separation, extraction and distillation, and is applied to the field of coal chemical industry.

The invention provides a distributed generation planning method for improving the voltage quality of a distribution network. The method comprises the following steps of: collecting power consumption data of users in a planning area; according to the current power consumption data, setting a peak level of power consumption data in a long-term planning period; acquisition of power grid parameters inthe planning area; Setting the maximum investable capacity of the distributed generation in the planning area and the upper and lower limits of voltage compensation in the planning area; a computational model for optimal planning of distributed generation considering voltage compensation capability is constructed. Set genetic algorithm parameters: generation gap, mutation probability, crossover probability, maximum evolutionary algebra, population size, input the collected data into the calculation program, and get the distributed generation planning scheme and voltage compensation effect. This method makes full use of the regulating potential of distributed generation in improving voltage, avoids the problems of secondary planning, secondary compensation and secondary investment caused by the low voltage problem at the end of transmission line, and reduces the planning workload and equipment investment cost.

The invention discloses a submarine cable underwater synchronous paying-off underwater vehicle which is characterized by comprising a shipborne mechanical system, a synchronous pushing system, a pneumatic launching system, a calculation center control system and a dragging and underwater-moving system. The technologies of electric automatization, aerodynamics, mechatronics and single chip microcomputer control and the like are integrated, underwater operation can be achieved, and the underwater vehicle is less affected by stormy waves; automatic detection and real-time paying-off can be achieved, the positioning precision is 0.5-3 m, the course accuracy is 0.01 degree, and a cable line corridor can be accurately controlled; cable laying is high in speed and can be controlled in real time, and the highest cable laying speed can reach 50 KM / h; the automation degree is high, and the number of construction staff is greatly decreased; the integration degree is high, and the whole process can be monitored; construction obstacles for the cable line corridor do not need to be cleared away, so that the environment is protected; all the systems can be recycled, and secondary investment is low; the systems operate synchronously, and the tension force of submarine cable laying is reduced; the line first-aid repair capability is high, and the submarine cable underwater synchronous paying-off underwater vehicle is suitable for line reconstruction work after seaquakes; and the structure is reasonable, and the performance is reliable.

The invention discloses an integrated operating platform for machining copper concentrate samples. The integrated operating platform comprises a workbench and a cleaning table. The workbench is provided with a first worktop, and dust removal assemblies are arranged near the first worktop, and used for removing copper concentrate dust or particles remaining in the operation of the first worktop; the cleaning table is provided with a second worktop which is provided with a cleaning assembly used for cleaning a rod milling barrel and a pot body, and dust collection assemblies are arranged near the second worktop and the cleaning assembly used for cleaning the rod milling barrel and the pot body, and used for removing dust near the second worktop as well as dust removed from the rod milling barrel and the pot body; and the dust removal assemblies are also arranged on shells of the workbench and the cleaning table, and used for removing dust around the operating platform. The integrated operating platform is put into use, so that the dust concentration in the operation process can be reduced effectively, and the operating environment is improved; the occupational health of operation personnel is ensured; and on the other hand, the labor intensity of employees is reduced greatly, and the operation efficiency is improved.