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33results about How to "Use properly" patented technology

Flue gas waste heat recovery system of metallurgy electric furnace

The invention provides a metallurgic electric furnace flue gas waste heat recovery system for realizing high-efficiency recovery of waste heat of a metallurgic electric furnace. The system comprises a waste heat boiler (4). The waste heat boiler is arranged outside an electric furnace (1). The flue gas exhaust from the electric furnace is guided into the waste heat boiler. The waste heat boiler comprises an evaporation heating surface (5), a coal economizer (6) and a steam tank (3). The coal economizer supplies water to the waste heat boiler. The hot water flowing out of the exit of the coal economizer is supplied to the steam tank. The bottom of the steam tank is connected with the entrance of the evaporation heating surface. The steam tank supplies saturated water to the evaporation heating surface. The middle part of the steam tank is connected with the exit of the evaporation heating surface. The steam-water mixture enters the steam tank after heat absorption and undergoes steam-water separation in the steam tank. The system further comprises a radiation heating surface which is arranged inside the electric furnace. The entrance of the radiation heating surface is connected with the steam tank. The saturated steam inside the steam tank flows to the radiation heating surface, the radiation heating surface absorbs the high-temperature radiation heat inside the electric furnace and heats the saturated steam to form superheated steam, and the superheated steam is guided out of the exit of the radiation heating surface.
Owner:BEIJING BOOTES ELECTRIC POWER SCI & TECH

Method for recovering valuable metals from complex high-arsenic-and-copper smelting flue dust

ActiveCN106282584AReasonable technical arrangementUse properlyProcess efficiency improvementReverberatory furnaceIndium
The invention discloses a method for recovering valuable metals from complex high-arsenic-and-copper smelting flue dust, belongs to the technical field of metallurgy, and concretely relates to a method for recovering valuable metals from high-arsenic-and-copper smelting flue dust containing complex components. The method comprises the following steps: 1, the high-arsenic-and-copper smelting flue dust is reduced and molten at a high temperature in order to make lead, bismuth and tin be reduced and enter metallic lead, arsenic and indium enter the flue dust and copper enter slag; 2, the obtained flue dust undergoes arsenic removal treatment in a rotary kiln, obtained calcine undergoes further arsenic removal in a reverberatory furnace to obtain an arsenic trioxide product, and indium enriched in the calcine is leached by sulfuric acid and is recovered; 3, the metallic lead is processed in a smelting furnace in the presence of sodium carbonate and sodium chloride to obtain a qualified product metallic lead, and tin and bismuth contained in slag are recovered in a tin smelting raw material form; and 4, copper contained in the slag in a matte form is recovered as a copper smelting raw material. The method has the advantages of no generation of dangerous waste arsenic calcium slag, no generation of a hydrogen arsenide gas in the whole treatment process, no water system expansion problem, and good utilization of the valuable metals.
Owner:云南锡业研究院有限公司研究设计院

Multifunctional movement monitoring device and method

The invention relates to a multifunctional movement monitoring device and method. The monitoring device comprises a processor, a sensor and a control unit, wherein the processor is used for analyzing and processing different types of data information; the sensor is connected with the processor and comprises a movement, scene and distance sensing component which is used for carrying out single-point or multi-point detection on an object to collect the one-dimensional or multi-dimensional spatial attitude and the movement scene information of the object; the control unit is based on a preset application mode or a self-compiled application mode to send out control instructions; the processor responds to the collected spatial attitude and movement scene information; and an executing machine can execute codes to carry out the preset or self-compiled actions of a single user or networking users. The invention has relevant functions suitable for original applications of users who can change the applications according to the requirements of the users, has application learning ability, is convenient for the users to modify the application modes or compile the application modes, and can be stored in dozens of modes to be convenient for the users to use, so that the resources are better utilized and the invention is more humanized.
Owner:彭钢 +1

Wavelength division multiplexing optical transmission system composed of single-fiber bidirectional optical modules

PendingCN109581597ASave fiber resources and wavelength division multiplexing devicesUse properlyOptical light guidesWave bandTransmission system
The invention discloses a wavelength division multiplexing optical transmission system composed of single-fiber bidirectional optical modules. The two sets of single-fiber bidirectional optical modules, a pair of wavelength division multiplexing/demultiplexing devices 201 and 202 and a communication optical fiber 300 connected with the first wavelength division multiplexing/demultiplexing device 201 and the second wavelength division multiplexing/demultiplexing device 202 are included; and the two sets of single-fiber bidirectional optical modules are n pairs of single-fiber bidirectional optical modules with the same wavelength, the two sets of single-fiber bidirectional optical modules 101n and 102n with the working wavelength being lambda1, lambda 2,..., lambda n are connected to the communication optical fiber 300 through the first wavelength division multiplexing/demultiplexing device 201 and the second wavelength division multiplexing/demultiplexing device 202, and n is larger than or equal to 2. By means of the system, the working characteristics of the single-fiber bidirectional optical modules transmitted at the same wavelength are mainly used, the aim of bidirectionally transmitting wavelength division multiplexed signals in the same long-distance optical fiber is achieved, one pair of wavelength division multiplexing/demultiplexing devices and one long-distance optical fiber are saved on the premise that the communication band is not reduced by 50%, and communication resources are maximized.
Owner:宇捷光子科技(南京)有限公司

Heat exchange device based on multiple-cycle energy-saving technology

The invention discloses a heat exchange device based on a multiple-cycle energy-saving technology. The heat exchange device comprises a smoke outlet, motors and a cover body, a treatment layer is arranged in the middle of the smoke outlet, an original chimney is fixedly connected below the treatment layer, the motors comprise shell bodies, end covers, motor shafts, and grounding devices, wherein mounting cavities are defined in the shell bodies, and one sides of the mounting cavities are opened; the opened sides of the mounting cavities are covered with the end covers, and motor bearings are arranged on the end covers; the motor shafts are arranged in the mounting cavities, and the end parts of the motor shafts are matched with inner rings of the motor bearings; and the grounding devices comprise elastic parts, cover bodies and sliding blocks, wherein the cover bodies and the sliding blocks are electrically connected, the cover bodies and the sliding blocks can move relative to each other, the two ends of the elastic parts abut against the cover bodies and the sliding blocks correspondingly, the cover bodies are arranged on the end covers, and the sliding blocks abut against the end surfaces of the motor shafts. According to the heat exchange device based on the multiple-cycle energy-saving technology, heat of the top ends of smoke inlets can be well exchanged, so that the heatof the whole device can be fully utilized and well recycled.
Owner:江苏今道高新技术发展有限公司

Exponentiation processing method, device and equipment and storage medium

PendingCN111625301AReduce business interface pressureUse properlyExecution paradigmsOperating systemSystems engineering
The embodiment of the invention provides an idempotent processing method and device, equipment and a storage medium, and the method comprises the steps: receiving a business request, sent by a user, of any business, and the business request comprises business related parameters; performing idempotent judgment on the service request according to a preset idempotent judgment strategy corresponding to the service; if not, sending the service request to a service processor through a service interface corresponding to the service; and if the request belongs to the repeated request, returning a result to the user according to a preset idempotent return strategy corresponding to the service. The idempotent processing process is decoupled from the service, so that the pressure of a back-end service interface is reduced, and resources of a service processor can be better utilized; the idempotent processing processes of multiple services are uniformly processed, diversified idempotent judgment strategies are supported, only the idempotent judgment strategies need to be configured and debugged in idempotent processing equipment, the influence of idempotent development process errors on subsequent services is avoided, idempotent judgment strategy configuration and debugging are simple and rapid, and the code error rate and repeated labor cost of developers are reduced.
Owner:TAIKANG LIFE INSURANCE CO LTD +1

Multi-mode steel pipe rolling process

PendingCN114752746ARealize the preheating of tube billet continuous castingUse properlyBatteries circuit arrangementsFurnace typesSteel tubeProcess engineering
The invention discloses a multi-mode steel pipe rolling process which comprises the following steps: acquiring the heat temperature and solar illumination intensity of an incoming material, judging whether the incoming material has a heat delivery condition or not, and judging that a solar power generation device can perform effective power generation based on the current solar illumination intensity; a conventional production mode is adopted when it is judged that the current incoming material does not have the hot delivery condition and the solar power generation device cannot effectively generate power, and a solar preheating mode is adopted when it is judged that the current incoming material does not have the hot delivery condition and the solar power generation device can effectively generate power; and when it is judged that the current supplied material meets the hot delivery condition and the solar power generation device can effectively generate power, a composite preheating mode is adopted. After incoming materials are heated in the annular furnace to be in a hot state, the hot-state blank is subjected to perforation treatment. Therefore, the continuous casting preheating of the tube blank can be better realized; solar energy can be better utilized; the gas consumption of the annular furnace is saved by multiple methods, and the carbon consumption is greatly reduced.
Owner:TAIYUAN HEAVY IND TECH IND CO LTD

Control method of refrigerator

The invention discloses a control method of a refrigerator. A temperature control system comprises a compressor, a first heat exchanger, a throttling element and a second heat exchanger, wherein the first heat exchanger is arranged close to a first chamber; the second heat exchanger is arranged close to a second chamber; the refrigerator comprises two air channels, a first air door and a second air door; the first chamber communicates with a third chamber through one of the two air channels, and the second chamber communicates with the third chamber through another air channel; the two air channels are correspondingly controlled to be opened and closed through the first air door and the second air door. The control method comprises the steps of starting the compressor; controlling a refrigerant to flow in forward direction and flow from the second heat exchanger to the first heat exchanger; refrigerating through the first chamber; heating through the second chamber; recording the length of time that the refrigerant flows in the forward direction as T1; controlling the refrigerant to flow in reverse direction and flow from the first heat exchanger to the second heat exchanger; heating through the first chamber; refrigerating through the second chamber; recording the length of time that the refrigerant flows in the reverse direction as T2; detecting the real-time temperature theta of the third chamber; and determining the difference between the real-time temperature theta and threshold temperature T0.
Owner:HAIER SMART HOME CO LTD
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