11results about How to "Achieve efficient recycling" patented technology

The invention discloses a hydrothermal / cold energy cross-business cyclic utilization system, a control method and a storage medium, and relates to the technical field of heat exchange equipment control. A data center liquid cooling heat exchange system is used for receiving low-temperature return water of a comprehensive heat exchange system so as to perform heat exchange of a server cabinet; high-temperature return water generated by heat exchange is transmitted to the comprehensive heat exchange system; the comprehensive heat exchange system is used for receiving high-temperature return water of the data center liquid cooling heat exchange system, transmitting the high-temperature return water to the high-temperature heat pump system, receiving low-temperature return water of the high-temperature heat pump system, and transmitting the low-temperature return water to the data center liquid cooling heat exchange system; the high-temperature heat pump system is used for receiving the high-temperature return water of the comprehensive heat exchange system so as to carry out heat release treatment to generate the low-temperature return water, and the low-temperature return water is transmitted to the comprehensive heat exchange system. The technical effect of cyclic utilization of heat is achieved.

The invention discloses a three-dimensional ecological fishpond culture system in the field of aquaculture. The three-dimensional ecological fishpond culture system comprises the following steps: 1, wastewater collection and pretreatment; 2, sterilizing and preparing a culture medium; 3, live bait is cultured in the runway type culture tank; 4, a water circulation system and continuous filtration; and 5, artificial wetland treatment and pasture planting. According to the breeding system, wastewater generated after breeding is treated, the water quality is improved, sterilization treatment is conducted, appropriate nutritional ingredients are added, and then the wastewater is discharged into the breeding tank containing microalgae and zooplankton to provide needed nutritional ingredients for the microalgae and the zooplankton, so that the microalgae and the zooplankton are massively bred in the water body, bait is brought to fishes in the constructed wetland, and the quality of the fishes in the constructed wetland is improved. The mode that bait is input depending on the outside in traditional cultivation is changed, self-sufficiency of green bait is achieved, and dynamic balance and efficient cyclic utilization of water are achieved.

The invention discloses a waste tin stripping water regeneration treatment method which comprises the following steps: adding waste tin stripping water into a reaction kettle, stirring, controlling the temperature, adding a settling agent, reacting, and carrying out solid-liquid separation to obtain tin precipitation mother liquor and tin sludge; adding an acidic precipitant into the tin immersion mother liquor for reaction, and then carrying out solid-liquid separation to obtain acidic salt of copper and tin stripping aqueous solution; performing solid-liquid separation on the tin mud after the tin mud is subjected to chemical washing treatment to obtain pretreated tin mud and washing filtrate; hydrochloric acid is added into the dissolving kettle to be stirred, the pretreated tin mud is added for a heat-preservation leaching reaction, and acid leaching liquid is obtained; and performing a double-membrane electrolytic reaction by taking the acid leaching solution as a cathode reaction solution of a cathode chamber, a dilute sulfuric acid solution as an anode reaction solution of an anode chamber and a dilute hydrochloric acid solution as an intermediate reaction solution of an intermediate chamber to obtain metal tin and a ferrous chloride solution in the cathode chamber, a hydrochloric acid solution in the intermediate chamber and oxygen generated in the anode chamber. According to the method, high-valued comprehensive utilization of valuable resources in the waste tin stripping water is realized, and the treatment cost of the waste tin stripping water is effectively reduced.

The utility model discloses a gold-containing solution adsorption recovery system, which comprises an electrolytic tank, a cleaning box and a carrying support, the electrolytic tank and the cleaning box are arranged on the carrying support, the electrolytic tank and the cleaning box are respectively provided with a lifting rotating electrolysis structure, and the carrying support is provided with a carrying structure; the utility model relates to the technical field of gold solution recovery, and in the whole process, an electrolytic rod is quickly and stably carried from an electrolytic tank to a cleaning box through the matching of precise components such as gears, shaft tubes and drivers. According to the design, the working efficiency is improved, the operation accuracy is ensured, and the error rate is reduced; each step of operation from rotary driving to lifting limiting and then to adsorption carrying is provided with a corresponding limiting and stabilizing mechanism, the stability of the whole process is ensured, and particularly, the operation reliability is greatly enhanced through the cooperation of a semicircular rack and a lifting limiting shaft and the design of an arc semicircular block and an arc rubber strip.

This invention provides a cultivation substrate, its preparation method, and its application, belonging to the field of tailings utilization technology. The cultivation substrate, by weight, comprises: 1-7 parts of an algae-bacterial symbiosis, 1-12 parts of modified illite tailings, and 1-22 parts of sheep manure; the algae-bacterial symbiosis includes *Chlorella vulgaris* and *Streptomyces flavus*. The cultivation substrate provided by this invention meets the requirements of standard NY / 2118-2012 for vegetable seedling substrates, improving soil physicochemical properties while also promoting plant growth and enhancing plant stress resistance. The cultivation substrate provided by this invention has advantages such as environmental friendliness and sustainable utilization, aligning with the development trend of modern agriculture, and providing a new direction for the resource utilization of illite tailings; it also achieves efficient recycling of mine tailings and agricultural waste, providing an innovative path for green agricultural development and resource utilization.

The utility model provides a circulating water return water waste heat recovery system which is characterized in that a compression type heat pump unit is arranged between a circulating water field and a municipal heat supply network water supply pipeline, heat of waste heat water in circulating water is transferred to return water in the municipal heat supply network water supply pipeline through the compression type heat pump unit, and heat supply network water supply is heated. And the waste heat water after heat recovery returns to the circulating water field. According to the system, the compression heat pump technology is adopted, efficient recycling of circulating water waste heat is achieved, and the waste heat recycling amount meets the regional heating requirement; the running number of fans of the circulating water field can be reduced, the electric quantity is saved, the heat dissipation and evaporation capacity of circulating water is reduced, the real-time water supplementing amount is reduced, and fresh water consumption is reduced; direct emission of waste heat is reduced, and thermal pollution is reduced.

The present invention belongs to the field of mineral flotation, and specifically discloses a composite collector for ultra-low-grade spodumene, lepidolite and pyroxenite lithium ore, which comprises saponified industrial oleic acid, kerosene, alcohol and compound A#imgabs0#. The present invention also comprises a flotation method for composite lithium ore using the collector and a water-soluble copper salt activator. The flotation method of the present invention produces the best effect by using water-soluble copper salt activation and adding a composite collector with low temperature resistance, good selectivity and strong collecting ability in a strong alkaline system. This sorting technology becomes the basis for the planned construction and production of this type of lithium ore, realizes the construction requirement of Li2O recovery rate greater than 70%, can significantly reduce production costs, and ensures that this type of composite lithium ore resources are comprehensively utilized and developed.

The utility model provides a material device which comprises a material tank used for transporting materials. The strain adding tank is provided with a containing cavity, and the containing cavity is used for storing a strain additive; sterile air is stored in the sterile air tank; the control unit comprises a first controller and a second controller, and the first controller is used for controlling the communication state of the material tank and the strain adding tank, so that the strain additive is added into the material. According to the utility model, high-efficiency recovery of materials, cleaning and sterilization of product parts, emptying of a strain adding tank, reduction of waiting time for re-adding, improvement of production efficiency, best isolation in continuous adding of different batches of materials, reduction of residual material mixing, avoidance of quality risks, no contact of a closed container and a pipeline with the outside, and no pollution to the environment. Due to positive pressure protection, strain pollution is avoided.

The invention belongs to the field of waste lithium iron phosphate battery recycling, and particularly discloses a method for recycling phosphorus, iron and lithium in lithium iron phosphate black powder, which comprises the following steps: S1, leaching the lithium iron phosphate black powder by dilute acid, and carrying out filter pressing to obtain an acid leaching solution; s2, alkali liquor is added into the pickle liquor to adjust the pH value, ferric phosphate is precipitated, and ferric phosphate dihydrate and ferric phosphate precipitated liquor are obtained through filtering; s3, adding caustic soda liquid into the iron phosphate precipitation post-liquid to adjust the pH value, filtering to obtain lithium phosphate and a lithium phosphate precipitation post-liquid, returning the filtered lithium phosphate to S1 for acid leaching, and supplementing phosphorus and enriching lithium; and S4, carrying out MVR concentration on the lithium phosphate precipitation solution to enable the lithium to reach a certain concentration, adding the lithium phosphate precipitation solution into a sodium carbonate solution, and carrying out lithium precipitation and washing to finally obtain a lithium carbonate product. According to the method disclosed by the invention, the lithium phosphate is returned to the acid leaching section to be leached without additionally adding a phosphorus supplementing agent, so that phosphorus can be supplemented for precipitated iron phosphate, the lithium can be enriched, and iron, phosphorus and lithium resources in the lithium iron phosphate black powder can be effectively recovered.

This invention relates to an integrated renewable fuel cell system, comprising: a URFC stack for electrolyzing water to generate hydrogen and oxygen in electrolysis mode and consuming hydrogen and oxygen to generate electricity in fuel cell mode; a gas management module including a hydrogen supply circuit, an oxygen supply circuit, and three purge gas circuits, respectively connected to the URFC stack, for providing hydrogen, oxygen, and purge gas for power generation; a water management module including a low-pressure water tank, a high-pressure water tank, a makeup water tank, and a gas-liquid separator, for providing cooling water, electrolyzed water, and their recycling; a sensing module including a pressure sensor, a flow sensor, and a temperature sensor, for acquiring system operating parameters in real time; and a circuit control module for receiving data from the sensing module and executing the linkage control of power supply and valves according to preset logic. Compared with the prior art, this invention improves the system's operational stability and the utilization rate of reactant gas and electrolyzed water by dynamically adjusting valve opening and closing and system pressure and temperature. This invention's system has advantages such as high automation, long service life, and strong environmental adaptability, and is suitable for multiple fields such as aerospace energy storage, smart grids, and high-efficiency energy conversion.

This invention relates to a method for regenerating waste lithium iron phosphate cathode materials and lithium-ion batteries, belonging to the field of electronic waste resource utilization technology. The method for regenerating waste lithium iron phosphate cathode materials includes the following steps: adding waste lithium iron phosphate cathode materials to a medium-strong acid solution for acid leaching and dissolution, followed by filtration to obtain a transparent solution; reflux heating the transparent solution, followed by filtration to obtain an iron-phosphorus product and a lithium-containing solution; treating the lithium-containing solution to obtain a lithium salt product; mixing the iron-phosphorus product, the lithium salt product, and a carbon source, followed by calcination under an inert atmosphere to obtain a LiFePO4 / C composite material. This invention solves the problems of complex processing, high energy consumption, serious secondary pollution, high impurity content in products, and low quality of recycled products in existing waste lithium iron phosphate battery treatment technologies. Furthermore, the recycled cathode electrode material obtained by this invention can meet battery-grade standards again.