6results about How to "Fully utilized resources" patented technology

The invention relates to an integrated recovery process of aromatic hydrocarbons in hydrogen peroxide oxidation tail gas, which specifically comprises the following steps: preheating the oxidation tail gas to 95-115 DEG C, introducing the oxidation tail gas into an adiabatic expansion machine for adiabatic expansion, reducing the pressure to 0.1-0.15 MPa, suddenly reducing the temperature to 3-7 DEG C, realizing energy recovery and power generation by using the Joule-Thomson effect, and condensing and separating out most aromatic hydrocarbons; and the condensed tail gas enters the activated carbon adsorption tower for deep adsorption, so that the aromatic hydrocarbon content in the finally discharged tail gas is less than or equal to 70mg / m. Through cooperation of process units, efficient recovery of aromatic hydrocarbons (the total recovery rate is greater than or equal to 95%), self-sufficiency of energy and even negative energy consumption operation (the unit tail gas treatment energy consumption is-5-0 kW.h / 1000 m) are realized, the stability and economical efficiency of an adsorption system are remarkably improved, and the technical problems of high energy consumption, low recovery rate and poor adsorption stability of a traditional cooling and adsorption process are solved.

The application relates to a steel pipe waste rolling equipment and belongs to the technical field of steel waste recovery. The equipment comprises a machine body, an extrusion groove is formed in the machine body, an extrusion plate is rotationally arranged on the machine body, a rotating shaft is horizontally arranged, a front baffle, a first baffle and a second baffle are rotationally arranged on the machine body, the front baffle is located at the top of the side wall of the extrusion groove opposite to the rotating shaft of the extrusion plate, the first baffle and the second baffle are located at the two sides of the front baffle, when the first baffle, the front baffle and the second baffle are all rotated to the vertical state, the three baffles block three continuous directions above the extrusion groove; a first hydraulic cylinder is arranged on the machine body, one end of a piston rod of the first hydraulic cylinder is hingedly connected with the front baffle, one end of a body is hingedly connected with the machine body and is simultaneously connected with the machine body in sliding mode, when sliding, the body slides horizontally in the direction away from or close to the front baffle, the application has the effects of reducing the phenomenon that the steel pipe waste splashes out of the extrusion groove, ensuring the safety of the surrounding processing environment and ensuring the compression density of the waste.

This invention relates to the field of ammonium dihydrogen phosphate (MDP) production technology. It discloses an apparatus and method for producing low-impurity, fully water-soluble MDP using a concentrated acid process. The apparatus comprises sequentially connected systems for acid adjustment, neutralization reaction, impurity removal and aging, filtration and separation, triple-effect concentration, continuous steady-state crystallization, and drying. The core of the method lies in the neutralization system, which employs a three-stage series connection of a rapid ammoniation reactor, a tubular reactor, and a slurry tank to achieve segmented pH control for neutralization. Furthermore, it innovatively uses self-produced ammonium fluoride as a purification agent, combined with pH reversal technology, to deeply remove metallic impurities such as Fe, Al, and Mg from wet-process phosphoric acid. After concentration, the slurry undergoes a unique de-crystallization-steady-state crystallization system to obtain large-size, high-purity crystals. This method enables the stable production of high-end MDP with a main content ≥99% and water-insoluble matter ≤0.01% using low-cost wet-process phosphoric acid as raw material, achieving a phosphorus yield of over 71%, and can replace thermal process products.

The invention belongs to the technical field of aviation aircrafts, and particularly relates to a quasi-permanent suspension unmanned aerial vehicle system which comprises an unmanned aerial vehicle hovering and control subsystem which comprises an unmanned aerial vehicle and a flight control system, a storage battery is arranged on the unmanned aerial vehicle, and the flight control system is arranged on the unmanned aerial vehicle and used for controlling the unmanned aerial vehicle to fly; the wind energy capturing subsystem comprises a traction kite, a turbine generator and a mooring rope, the turbine generator is arranged on the traction kite, one end of the mooring rope is connected with the power output end of the turbine generator, and the other end of the mooring rope is connected with the power input end of the unmanned aerial vehicle through a storage battery. The closed-loop design of'aerial power generation and aerial use 'is adopted, high-altitude wind energy is efficiently captured in a light-weight mode, power is directly supplied to the unmanned aerial vehicle, dependence on ground mooring power supply and frequent charging or a large-capacity battery is thoroughly eliminated, and possibility is provided for quasi-permanent hovering of several months or even longer time.

The invention relates to the technical field of production line control, and relates to a control method and system for carton production, and the method comprises the steps: obtaining a carton production task comprising N processes, obtaining an ant colony, and initializing the ant colony into an exploration sub-population and a mining sub-population; according to the pheromones and the composite heuristic information, determining the probability that the ants select to-be-processed procedures; after all ants of the sub-population are explored and all ants of the sub-population are explored to complete path construction, updating a global optimal path and updating pheromones; and performing iteration until a preset termination condition is met, and determining a global optimal path obtained by the last iteration as a production control scheme. According to the method, the exploration sub-population and the exploitation sub-population which work in parallel are set, and different search strategies are configured, so that the global and local capabilities of ants are balanced, the search process is prevented from falling into local optimum too early, and the overall efficiency of carton production is improved.

The application provides a method for recovering manganese from zinc anode slime, and relates to the field of hydrometallurgy. The method for recovering manganese from zinc anode slime comprises the following steps: sequentially performing water washing and acid washing on zinc anode slime to obtain manganese-rich residue; mixing the manganese-rich residue with a sulfuric acid solution to prepare slurry; adding the slurry into a cathode area of an electrolytic cell to perform constant-current electrolysis; after the electrolysis is completed, performing solid-liquid separation on the slurry in the cathode area to obtain manganese-containing electrolyte and lead-silver residue; sequentially performing purification and impurity removal treatment, concentration, crystallization and drying treatment on the manganese-containing electrolyte to obtain manganese sulfate. The method adopts an electric reduction mode to reduce manganese in zinc electrolytic anode slime, and high-purity manganese sulfate products can be obtained, and the method has the advantages of good selectivity, high recovery rate, short process, high comprehensive resource utilization rate, good environmental protection performance, high product added value and the like.