158results about How to "Stable recycling" patented technology

The invention discloses a device for launching and recovering a boat on a mother ship. An opening and a launching and recovering door are arranged on the rear side of a cabin. The launching and recovering door comprises a door plate seat driven by a lifting device to ascend and descend and a door plate hinged on the door plate seat, and the door plate is driven by an opening and closing device to be opened and closed. A rail leading to the opening is arranged in the cabin, a trolley for carrying the boat and moving on the rail is arranged on the rail, and a bracket capable of docking with the rail when the door plate is opened is arranged on the door plate. The door plate is opened to enable the bracket to be docked with the rail, the boat is pushed onto the door plate, the door plate is driven by the lifting device to descend below the water level, and accordingly the boat is launched. When the boat is recovered, the door plate and the bracket are driven to descend below the water level, the boat runs to above the bracket, then the door plate is lifted to enable the bracket to support the boat, the door plate is lifted continuously to enable the bracket to be docked with the rail, and the boat is pulled into the cabin. By the device, launching and recovery of the boat on the mother ship is achieved quite conveniently, and the whole boat launching and recovery process is stable and safe.

The invention discloses a dynamic base station for AUV recovery, belongs to the technical field of underwater robot recovery, and aims to solve the problems of instability in docking recovery, difficulty in operation, large drag resistance and certain potential safety hazards existing in the prior art. The dynamic base station comprises a recovery base station body, two attitude regulators symmetrically arranged on the recovery base station body, a connecting ring fixed on the recovery base station body, a guide cover, a locking device, a position detector, and a main controller, wherein one end of the guide cover is coaxially and fixedly connected with one end of the connecting ring, and the other end of the guide cover is a free end with opening adjustable; one end of the locking deviceis fixedly connected with the other end of the connecting ring, and an underwater robot which enters the dynamic base station is clamped or loosened through the locking device; the position detector is fixedly connected with the other end of the locking device; and the main controller is arranged in the recovery base station body, the rotating speed of the two attitude regulators is controlled through the main controller, and the main controller receives the detection signals of the position detector to control the locking device to clamp or release the underwater robot.

The invention discloses a bismuth cored wire. The bismuth cored wire consists of a steel tape sheath and core powder, and is 8 to 20 in diameter or in other diameters or other shapes, the alloy components of the core powder are Ca, Si, S, Fe and Bi, wherein, the content of Ca is 0 to 20 percent by weight, the content of Si is 0 to 15 percent by weight, the content of S is 0 to 10 percent by weight, the content of Fe is 0 to 20 percent by weight, and the content of Bi is 50 to 100 percent by weight. The invention adopts the form of the bismuth cored wire or bismuth composite cored wire, the bismuth cored wire is fed into molten steel by a wire-feeding machine, the recovery rate of bismuth in the molten steel is increased, the cost is reduced, pollution is reduced, moreover, the recovery of bismuth is stable, and component control is accurate.

The invention discloses a space debris recovery control method based on a tethered technology. The space debris recovery control method is characterized by comprising the following steps that 1, the tether elasticity is considered, a space tethered debris system is researched by adopting an elastic rod module, and a system dynamics differential equation is built according to a class II Lagrange equation; 2, the system dynamics equation in the step 1 is rewrote into a non-dimensional system dynamics equation; 3, the in-surface outer pivot angle vibration abatement problem of nonlinear time-varying system dynamics equation in the recovery process is researched, and the tether length change analysis control law and the in-surface pitch angle value range in the expectation equilibrium position in the debris recovery process are inferred; and 4, the stability of the system and the value range, keeping stable asymptotically, of a pitch angle in an expectation surface are further analyzed through the Floquet theory. Through the space debris recovery control method, the effect that debris is stably recovered nearby an on-orbit spacecraft can be ensured, and meanwhile the safety in the recovery process especially the safety in the end time can be ensured.

A vapor expander driven air compressor, comprises: a bulk type vapor expander, a bulk type air compressing engine driven by the bulk type vapor expander, a capacity regulation valve capable of adjusting the inspiratory capacity of the bulk type vapor expander, a pressure detector for detecting the pressure of the discharged side of the bulk type air compressing engine, and a control device for controlling the opening of the capacity regulation valve based on the detection signal of the pressure detector so that the pressure of the discharged side of the bulk type air compressing engine is finite. In this way, the vapor expander driven air compressor can stably recovery the pressure difference energy no matter how much the amount of the vapor is.

The invention discloses a water quality sampling unmanned catamaran and a sampling method thereof, and belongs to the technical field of environment monitoring. The water quality sampling unmanned catamaran comprises two catamaran bodies arranged in parallel, wherein the two catamaran bodies are in rigid connection through a fixed trapezoidal frame above the catamaran bodies; an upper platform anda lower platform are arranged on the trapezoidal frame; a cylindrical tube penetrating through the upper platform and the lower platform is arranged in the middle of the trapezoidal frame in a penetrating way; a windlass corresponding to the cylindrical tube is arranged on the upper platform; a bearing support frame matched with the windlass is also arranged on the upper platform; a water collecting pipe is wound on the windlass; one end, passing through the cylindrical tube, of the water collecting pipe is connected with a water sample collector; the other end of the water collecting pipe isconnected with a peristaltic pump fixed on the upper platform; and a water sample distributor is arranged on the lower platform, and is connected with the peristaltic pump. Through the arrangement ofa water sample collection device on the unmanned catamaran in parallel arrangement, the stability of the water sample collection device in the unmanned catamaran moving process is improved.

The invention discloses a preparation process of a cast steel material capable of resisting a high temperature of 620 DEG C. The cast steel material is ZG13Cr9Mo2Co1NiVNbNB; the preparation process comprises a unique electric arc furnace smelting process and a ladle refining furnace smelting process; according to the preparation process, nitrogen is blown in the LF furnace smelting process to take the place of the process of adding a chromium nitride alloy to the electric arc furnace in the prior art, and therefore, the process performance is stabilized and the cost is greatly reduced. The electric arc furnace and the ladle refining furnace are taken as the basic smelting devices for the preparation process; the electric arc furnace smelting process is strengthened, and on the basis of obtaining good-quality primary smelting liquid steel, the control of the ladle refining furnace is refined; a unique, complete and exquisite preparation process is obtained by virtue of lots of experimental summary; the existing production equipment can be utilized without increasing investment to produce steel castings having the performance indices completely satisfying the use of high-efficiency ultra-supercritical units, and the steel castings have been successfully applied to the operation of high-efficiency ultra-supercritical turbine units.

The invention discloses a smelting process of nitrogenous high alloy heat-resistant steel ZG3Cr24Ni7N, which includes preparing a steel ladle, primary smelting in an electric arc furnace, refining the steel ladle and blowing nitrogen from the bottom of the ladle. The nitrogen which is rich in sources and low-price is used as material, the nitrogen is blown to molten steel for nitrogen alloying, and accordingly production cost of nitrogenous steel is lowered greatly. Alloy recovery efficiency is improved by reasonable processes, so that the problem that chemical components are difficult to control is solved, and the metallurgical quality of molten steel is improved.

The invention aims to provide a chimney structure capable of preventing carbon dioxide causing global warming from being exhausted into the atmosphere, wherein: a porous stack is disposed in a pipe body having a base end communicating with a combustion chamber. In addition, the pipe body is formed by bending it in an inverted U-shape, and a porous stack is disposed in the combustion gas flow path.

The invention provides an overall peeling method for a cathode material and an anode material based on the characteristics of compact structure, complicated composition, harmful electrolyte containingand the like of a waste lithium ion battery, wherein aluminum foil is effectively separated from the cathode material in controllable conditions, and then cathode graphite is effectively separated from copper coil while the electrolyte is effectively recycle; the whole technology does not apply corrosive solutions such as strong base, strong acid and strong oxidant, the peeling process is fast and efficient, the composite solvent is low in cost, all sub-systems are linked with each other, thus the method is a green and environment-friendly method for circularly utilizing a waste lithium ion power battery.

The invention discloses a tie-down rope winding and unwinding device, and belongs to the field of floating-observation platforms. The tie-down rope winding and unwinding device comprises a winding device, a traction device and an unwinding device, wherein the winding device comprises a winding drum connected with a hydraulic transmission device; the traction device comprises a first traction wheel and a second traction wheel which are connected with the hydraulic transmission device; skewed slots which correspond to each other are formed in the first traction wheel and the second traction wheel in an engraved manner; a mooring rope is wound on the first traction wheel and the second traction wheel in 8-shaped repeated, alternate, single-layer and multi-turn manner; the unwinding device is positioned between the winding device and the traction device; and the winding direction and force of the mooring rope are controlled by a plurality of servo motors of the unwinding device. By a hydraulic transmission mode, volume and weight are reduced, and energy consumption is lowered. Moreover, in a mooring rope winding and unwinding process of the device, stable control on winding and unwinding of the mooring rope and protection to the mooring rope are fully considered in the design, and use safety of a tie-down platform is ensured.

The invention discloses a waste heat recovery system of a liquid cooling data center. The waste heat recovery system comprises a first heat exchanger, a heat dissipation system, a solar heat collection and heat storage system and a heat energy utilization system, wherein each system is a circulation loop internally provided with a working medium flow, the first heat exchanger is a part of the heatdissipation system, the heat dissipation system and the solar heat collection and storage system are connected with the heat energy utilization system through a heat exchange pipeline and the solar heat collection and storage system to provide heat energy, and the waste heat of the solar heat collection and heat storage system is used for civil heating. The solar heat collection and heat storagesystem is used for upgrading a low-temperature waste heat source, energy storage is carried out, the input energy fluctuation in the daytime and at night is balanced, the heat source is utilized for heat energy utilization, the waste heat is used for providing hot water and heating for a building, redundant low-grade heat is discharged into the environment through a cooling tower, and the waste heat recovery efficiency of the liquid cooling data center is improved, the energy consumption of the data center is reduced, the energy utilization efficiency is improved, the energy consumption is reduced, and meanwhile, the operation cost of the data center is reduced.

The invention provides a novel recovery and release device of an underwater robot. The recovery and release device comprises a base arranged at a mother ship, two mechanical arms arranged on the base, a storage cabin arranged at one side of the mother ship and used for storing, a salvaging net arranged between the ends of the two mechanical arms. Each mechanical arm comprises a connecting rod one hinged to the base, a connecting rod two hinged with one end of the connecting rod one, a connecting rod three hinged with one end of the connecting rod two and a pulley arranged at one end of the connecting rod three, wherein the base is also hinged with a driving cylinder one; the output end of the driving cylinder one is hinged to the middle of the connecting rod one; the end of the connecting rod one is hinged with a driving cylinder two; the output end of the driving cylinder two is hinged to the end of the connecting rod two; a hydraulic motor one is arranged at the position where the connecting rod two is hinged with the connecting rod three; a hydraulic motor two is arranged at the middle of the connecting rod three; the output end of the hydraulic motor two is connected with a cable; and one end of the cable is connected with the salvaging net after winding around the pulley. The novel recovery and release device of the underwater robot has the advantages of safety, stability, quick response, high efficiency and high work reliability.

The invention discloses a cable winding and unwinding device based on cable arrangement by a lead screw and belongs to the field of floating platforms. The cable winding and unwinding device comprises a cable winding system, a driving system and a cable arrangement system. The cable arrangement system is positioned between the cable winding system and the driving system and comprises a belt transmission mechanism, a belt, the reciprocating lead screw, a polished rod, a slider and a shifting fork, wherein the belt transmission mechanism is connected to a winding reel and the reciprocating lead screw, the polished rod penetrates through the belt transmission mechanism to be fixed on guide rails, the slider sleeves the polished rod and the reciprocating lead screw, the shifting fork is inlaid at the bottom end of the slider, and the spiral surface of the reciprocating lead screw is matched with the shifting fork. By adopting the cable arrangement system controlled by the lead screw, the cable winding and unwinding device based on cable arrangement by the lead screw has the advantages that a cable can be arranged on the winding reel orderly and compactly, twining of the cable is avoided, and use safety of a mooring platform is ensured.

The invention relates to a processing technology of wastewater produced during desalting water manufacturing in viscose fiber production, and belongs to the technical field of industrial wastewater processing. The technology recycles magnesium hydrate, calcium sulfate and sodium chloride through the connection of devices and the control of the technology, and the problem that in the prior art, wastewater produced during desalting water manufacturing can not be well processed is solved. The technology is simple in related device, easy to operate, low in cost and reasonable in design, wastewater can be more easily, conveniently and efficiently processed at low cost, and magnesium hydrate, calcium sulfate and sodium chloride in wastewater are recycled.

The invention relates to a method for recycling copper extracted from alkaline copper chloride etching waste liquid. Alkaline chloride system copper-contained etching waste liquid adopts a direct electrolytic copper removal and regeneration industrial method, and adopts a direct copper electrolysis mode; and liquid after removing copper is mixed with collected and absorbed ammonia and electrolysis copper washing water to form standard regenerated alkaline chloride system etching liquid. The method electrolytically deposits copper by independent circulating speed of a cathode plate and high current density, so that the current efficiency is high, the power consumption is low, the quality of a copper plate reaches national first standard cathode copper, the realization is easy, and the alkaline chloride system etching liquid recovers the etching activity; the all-closed replenishing, collection and absorption of ammonia volatilized from the internal are performed to replenish the alkalinity of the regenerated etching liquid; and effective salt attached on the copper plate is mixed in two circulating liquid by a reasonable ratio, so that all effective chemical substances in the internal are stably recycled.

The invention discloses a bismuth core spun yarn feeding method which comprises the following steps of: controlling the temperature of liquid steel below the boiling point of bismuth or within 40 DEG C above the boiling point of bismuth, agitating the liquid steel at the bottom of the steel ladle by using argon or nitrogen, and feeding the bismuth core spun yarn into the liquid steel through a yarn feeding machine. The bismuth core spun yarn is originally created in domestic and is fed into the liquid steel through the yarn feeding machine by controlling the technological parameters such as liquid steel temperature, argon or nitrogen agitation strength, yarn feeding speed and the like, so that the recovery rate of bismuth is greatly increased and can reach 55-75%, recovery is stable, component control is accurate, the cost is also lowered, the overflow of bismuth steam is reduced, and pollution is lowered.

The invention provides a temporary anchor recovery system for an ocean platform ship. The temporary anchor recovery system comprises an anchor rack, a support structure, a chain stop structure, an anchor chain bin, a hinge device and an anchor chain, wherein one end of the anchor rack is horizontally mounted on a bow; the support structure comprises two support arms and a mounting platform; the two support arms are vertically mounted on a main deck of a hull respectively; the mounting platform is horizontally mounted at the front ends of the tops of the two support arms; the support structureis positioned above the rear side of the anchor rack; the chain stop structure is mounted on the mounting platform; a chain inlet is formed in the top of the anchor chain bin, and the anchor chain binis vertically mounted on the main deck of the hull and downward extends to the inside of the hull; the hinge device is mounted at the top of the anchor chain bin and is positioned above the rear sides of the support arms; and the hinge device recovers the anchor chain into the anchor chain bin sequentially through the anchor rack, the chain stop structure, the hinge device and the chain inlet, and an anchor at the end of the anchor chain is clamped on the anchor rack. The temporary anchor recovery system provided by the invention realizes stable and quick release and recovery of the anchor chain on an exposed deck.

The invention belongs to technical field of chemical brine wastewater treatment, and particularly relates to a brine wastewater advanced treatment and efficient recovery utilization technology. Brinewastewater from a brine wastewater recycling unit flows through a nanofiltration unit, and is further subjected to treatment of an oxidized unit, an evaporation concentration unit, a sodium sulfate freezing crystallization unit, a mirabilite melt crystallization unit, a reverse osmosis unit, a high concentration EDM device I, a sodium chloride evaporative crystallization unit, a carnallite dryingunit, the treatment cost of the brine wastewater is significantly lowered, recycled water can serve as circulating water, a sodium sulfate sodium chloride industrial salt and carnallite are obtained,zero discharge of the brine wastewater is achieved, and environmental pollution is reduced.