48results about How to "Reduce equipment loss" patented technology

The invention discloses a porous carbon material for an alkali lignin-based supercapacitor as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing alkali lignin coarsely purified from papermaking black liquid with a three-block polymer Pluronic Fl 27 and Mg(CH3COO)2.4H2O, and adding formaldehyde and hydrochloric acid for full and uniform stirring to obtain a mixed solution; placing the mixed solution into a drying oven for drying, so as to obtain a black brown solid; then putting the black brown solid into a tubular furnace for carbonization reaction, continuously feeding nitrogen or inert gas at the end of the reaction, and cooling to a room temperature; finally carrying out acid pickling, washing and drying to obtain the black powdered porous carbon material. The obtained material can be applied to a double-electrode-layer supercapacitor; in the carbonization process, no strong-causticity chemical substances such as strong acid and strong alkali are used, so that the loss of equipment is reduced to the maximum extent; the used raw materials are by-products in the pulp and paper making industry, so that the maximum use of resources is realized; moreover, lignin is wide in source and low in cost, so that the production cost is reduced.

The invention discloses a working face equipment positioning system suitable for accurately sensing movable equipment and personnel positions in real time in the coal mining process. The system is composed of hydraulic supports, a coal mining machine, anchor points, chipless labels, a scraper conveyor, a positioning server and the like. Ultra-wideband communication is adopted between the anchor points and the chipless labels, the distances between the anchor points and the labels are measured by means of the high-time-domain resolution property of ultra-wideband, and the physical characteristics such as the speeds, movement directions and accelerations of measured objects are measured by inertia units on the chipless labels. The anchor points collect the distances between the anchor points and the chipless labels arranged under top beams of the hydraulic supports as well as movement parameters, and transmit the distances and the movement parameters to the positioning server, the movement states such as the accurate positions, movement directions and speeds of the supports and the coal mining machine are worked out, and accurate position of the equipment is achieved.

The present invention relates to a gas treatment method, specifically to a method for production regulation of a chelated iron desulfurization process. According to the method, solid phase impurities and liquid phase impurities are removed from hydrogen sulfide-containing raw material gas through an acid-gas separator, the obtained material sequentially passes through a pre-absorption tower and an absorption tower, and reacts with the chelated iron barren solution so as to remove the hydrogen sulfide gas, and the purified nature gas enters a purified gas separator to remove water, is subjected to measurement detection, and then is directly and externally output. With the method, normal use can be achieved even when the hydrogen sulfide content in the raw material gas is changed, and production requirements can be met through adaptable regulation of other parameters according to the method so as to avoid regulation of the production process. In addition, according to the actual situation requirements of the production, the optimal desulfurization solution circulation amount is selected so as to reduce equipment loss, reduce pump power consumption and avoid waste of energy sources.

Methods and systems for coding SAW OFC devices to mitigate code collisions in a wireless multi-tag system. Each device producing plural stepped frequencies as an OFC signal with a chip offset delay to increase code diversity. A method for assigning a different OCF to each device includes using a matrix based on the number of OFCs needed and the number chips per code, populating each matrix cell with OFC chip, and assigning the codes from the matrix to the devices. The asynchronous passive multi-tag system includes plural surface acoustic wave devices each producing a different OFC signal having the same number of chips and including a chip offset time delay, an algorithm for assigning OFCs to each device, and a transceiver to transmit an interrogation signal and receive OFC signals in response with minimal code collisions during transmission.

The invention relates to a new method for producing fuel ethanol by a low temperature pretreatment mode of corn. The method comprises the following steps: crushing corns into granules with granularity of 100%; sieving by a 40 mesh sieve; preparing a powder syrup whose dry material concentration is 33 m% with water and clear liquid; adding 15-20 U/g dry basis of acid protease and 30-40 U/g dry basis of alpha-amylase, adding 3 ppm of bacterial depressant; adjusting pH to 4.5; stirring at 60-65 DEG C for 0.5-1 hour; preparing a pretreatment mash; rapidly cooling the pretreatment mash to 30-35 DEG C; adding 0.2 m% of yeast and 400-500 U/g dry basis of complex glucoamylase, and adding nutritive salts; fermenting for 75-85 hours. Compared with the traditional high temperature boiling technology, the invention can save about 35% of steam consumption with high mature mash ethanol content and high starch liquor yield.

The invention relates to a multifunctional integrated machine of an electrolytic manganese metal cathode plate and an automatic plugging plate. The multifunctional integrated machine comprises a travelling mechanism, a mechanism suspension arm, a plate-plugging inlet, a plate outlet, a shifting fork linker, a cathode plate conveying chain and a programmable controller, wherein the mechanism suspension arm is arranged at one end of the travelling mechanism and is used for plugging and taking a cathode plate; the plate-plugging inlet and the plate outlet are arranged at the other end of the travelling mechanism; the shifting fork linker is arranged in the travelling mechanism and is used for plugging and taking the cathode plate; the cathode plate conveying chain is arranged in the travelling mechanism; the programmable controller is used for controlling all the parts; and the cathode plate conveying chain comprises a plate-plugging conveying chain and a plate-discharging conveying chain. The multifunctional integrated machine can reduce the manual operation, reduce the potential safety hazard of personnel, increase the working efficiency and improve the production environment.

A semiconductor optical amplifier (SOA) is used in a double pass configuration with one of the output ports followed by an attenuator, which is followed by a modulator with a reflective facet. The variable loss between the SOA and the modulator is optimised, so that the SOA can be operated in a highly saturated regime without distorting the modulated signal. The SOA is firstly saturated by the input carrier, (21) in FIG. 2, which has a constant power and hence does not introduce patterning of the SOA gain. On the contrary the saturation induced by the carrier creates a clamping effect that prevents patterning for signals with input put power comparable with or less than the input optical carrier power. The optical carrier amplified by the SOA (22) then travels through the attenuator section and it is attenuated (23). The carrier (23) then enters the modulator section where it is modulated with the data signal (24). After being reflected by the high reflectivity facet the modulated signal (25) propagates again through the modulator section. If the modulator section length is short compared to the modulation bit rate, the double passing increases the modulation depth or extinction ratio without introducing distortion. The modulated signal (26) travels a second time through the attenuator and then enters the SOA (27).

The invention relates to a continuous isosynthesis method and a continuous isosynthesis device of ethylidene norbornene. The continuous isosynthesis method of the ethylidene norbornene comprises the following steps: forming a multi-stage reactor group by adopting two or more isomeric fluidized bed reactors; continuously introducing a fresh vinyl norbornene raw material into a reaction system through the first-stage reactor of the multi-stage reactor group for fluidized reaction to obtain ethylidene norbornene products, and continuously discharging through the last-stage reactor of the multi-stage reactor group; and continuously introducing a fresh catalyst into the reaction system through the last-stage reactor for participating in the fluidized reaction, sequentially carrying out liquid-solid separation through interstage cyclone separators arranged between all-stage reactors of the multi-stage reactor group, and then discharging out of the first-stage reactor.

The invention discloses a low-thrust long-term position keeping method for a geostationary orbit satellite. The method comprises the following steps establishing an in-plane and out-plane average orbital motion model of a satellite orbit through spherical coordinates; giving a long-period movement rule of the geostationary orbit satellite in the plane and out of the plane through a phase plane analysis method; on the basis, selecting a fixed-point position keeping window of the geostationary orbit satellite, and acquiring a periodic motion trail, namely a drifting section trail, of the satellite in an uncontrolled state in the fixed-point window; and designing a small thrust control law to obtain a motion trail, namely a thrust section trail, of the satellite in a controlled state so thatthe thrust section trail and the drift section trail form a closed-loop trail together, and small-thrust long-term position maintenance of the geostationary orbit satellite is completed.

Provided is a method for preparing a high-density ITO target on conditions of reducing sintering temperature. According to the method, in preparation of ITO slurry during the initial period, first premixing liquid needs to be prepared first and a ball mill is used; an oven is used in low-temperature drying preparation of a secondary material; in preparation of the ITO slurry, second premixing liquid needs to be prepared first and the ball mill is used again, a grouting forming method is adopted in the forming processing of ITO blank and compressed air serves as a pressure transmitting medium, and normal pressure oxygen atmosphere conditions are adopted in the sintering processing of the ITO blank. The ITO slurry with a high solid phase content is one requirement for preparing the high-density ITO blank, the relative density of the prepared ITO blank can be as high as 74-76% through measurement in a mercury emission method, the solid content of the ITO slurry is 89-91% through ball milling of the secondary material, and the high-density ITO target with the relative density as high as 99.50-99.67% can be prepared through good viscosity mobility and the low sintering temperature.

The invention discloses a method for preparing conjugated linoleic acid short-chain alcohol ester. The method comprises the following steps: taking vegetable oil as a raw material; carrying out one-step saponification and isomerization under a normal-pressure nitrogen filling condition; acidifying and washing with water; centrifuging to prepare a conjugated linoleic acid crude product; freezing, refining and separating to obtain a conjugated linoleic acid refined product; mixing the conjugated linoleic acid refined product with alcohol and adding an acidic catalyst; neutralizing, filtering and carrying out rotary evaporation; filtering to obtain the conjugated linoleic acid short-chain alcohol ester. Compared with the prior art, a reaction speed is effectively controlled, the generation of trans fatty acids is extremely reduced, the quality of the product is improved, the time of reaction operation is greatly reduced and the preparation efficiency is improved; the method has a simple process and is easy to operate and needed equipment investment is small; the conjugated linoleic acid short-chain alcohol ester prepared by the method has high stability, is not easy to oxidize and has various important physiological functions of inhibiting cancers, losing weight, adjusting blood lipid, regulating blood glucose, regulating blood pressure, resisting atherosclerosis, regulating immunity and the like.

The invention discloses an intelligent control system for a chemical product recovery process. The intelligent control system comprises a chemical product recovery process visualization module, a set value computation module, a data acquisition and output module, a coordinative optimization module, and system hardware; the data acquisition and output module transfers a data result to the chemical product recovery process visualization module; the chemical product recovery process visualization module feeds field equipment parameters and process parameters back to the data acquisition and output module; the data acquisition and output module receives an operation parameter set value of the set value computation module and feeds procedure parameters back to the set value computation module; the set value computation module obtains a state parameter optimization set value from the coordinative optimization module and transfers real-time and historical data to the coordinative optimization module; and the coordinative optimization module is used for realizing coordinative optimization of coal gas purification and recovery processes. The intelligent control system can achieve a synergistic effect integrating visualized presentation, data management, coordinative optimization, data mining and energy conservation, and realize benefit maximization under the premise of ensuring safety in production.

The invention relates to a wind energy heating unit and an operation method thereof. The wind energy heating unit comprises a windward blade, an oil pressure pump, a heat production device and an energy storage heat exchanger, wherein the windward blade is connected with the oil pressure pump through a transmission shaft in a driving way, an extrusion end of the oil pressure pump is connected with the heat production device through a pipeline, the energy storage heat exchanger is provided with a heat production fluid pipeline and a heat-taking medium pipeline, an inlet of the heat production fluid pipeline is connected with the downstream of the heat production device through a pipeline, and an outlet of the heat production fluid pipeline is connected with the suction end of the oil pressure pump by a pipeline. The wind energy is collected by utilizing the windward blade, and the oil pump is driven in a mechanical transmission way, so that the wind energy is converted to the pressure energy of the heat production fluid. The heat production fluid flows by a heat production part and the pressure energy of the fluid is converted to the kinetic energy and then converted to the heat energy. The heat energy is stored in the energy storage heat exchanger. When heat is needed, heat-taking medium flows through an energy concentrator so as to take out the heat.

The invention discloses a crude oil viscosity reducing device which is formed by a rod-shaped alloy body. The rod-shaped alloy body consists of magnetic steel and rare earth element, wherein the rare earth element consists of cerium group element, yttrium group element and scandium element; and the weight ratio of the cerium group element to the yttrium group element to the yttrium group element to the magnetic steel is 4 to 6:3 to 4:1 to 2:20. The invention also provides a preparation method of the crude oil viscosity reducing device. The device changes the electronic motion trail through the effects on various magnetic moments of crude oil molecule and paraffin molecule by strong magnetic, so that the polymerism between molecule and molecular group is weakened, the molecular combination gets loose, and the internal friction is weakened, the flowability of crude oil is improved, the viscosity of crude oil is greatly reduced, and the energy consumption during extraction and transportation is saved.

The invention discloses a method for recovering platinum from a waste catalyst. The method is characterized by comprising the following steps: (1) grinding: the waste catalyst is grinded to fine particles; (2) charking: the grinded waste catalyst is roasted for 1 hour; and the roasting temperature is 400-600 DEG C; (3) wet grinding: the treated waste catalyst and a grinding agent are mixed and put in an autoclave for sealing and wet grinding; and the ratio of the catalyst to the grinding agent is 8-10: 1; (4) leaching: the vacuum filtration is performed after the wet grinding to separate solids from liquid; and leaching residues and leaching liquid are put in the autoclave for pressurizing and heating; (5) the refined purification is performed. The method has the following beneficial effects: compared with a traditional recovery method, the method omits a step of acid dissolving in the recovery process, so that the cost is saved, the equipment loss is reduced, the three-waste treatment cost is reduced, and the purposes of reducing the production cost and reducing the production period are finally achieved.

The invention discloses an alternating current (AC) voltage regulator, comprising an autotransformer and a control circuit, wherein the autotransformer comprises a first coil, a second coil and a third coil which are sequentially wound on an iron core; two ends of the first coil are respectively used as an input end and an output end; one end of the third coil is connected with a zero line, a centre tap is arranged between the third coil and the second coil, a first switch is arranged between the third coil and the second coil, and a second switch is arranged between the zero line and the centre trap; the control circuit is provided with two control signal output ends which are respectively connected with the first switch and the second switch of the autotransformer and respectively output a control signal to control the first switch and the second switch. The voltage regulator has the advantages of small circulating current, low equipment loss and high reliability, the output voltage of the whole equipment can be continuously regulated between 180V and 210V to overcome the shortcoming that the voltage regulation of the traditional transformer only can be controlled by stepping, and the output voltage is pure sine wave without harmonic pollution.

The invention relates to a harmonic component-based distribution cable arc grounding fault determination method, which comprises the following steps of: acquiring three-phase voltage, zero-sequence voltage and zero-sequence current signals of a monitored distribution cable, and acquiring arc signals of an arc sensor at the same time; starting condition judgment; taking 100ms as a window to find out the section with the maximum amplitude of each line, comparing the sections with each other to find out the maximum value, and considering that the line where the section with the maximum value is located is a fault line; a record of the obtained arc light signal is called, and the time of the record is compared with the time of the marked fault line; and judging an arc grounding fault. According to the method, the arc information of the arc grounding fault and the voltage and current transient signals are obtained in real time, the harmonic change criterion of the arc is extracted, arc grounding of the distribution line is judged, the reliability and selectivity of line protection are improved, and equipment loss caused by arc is reduced.

A multilayer embedded packaging structure according to an embodiment includes a first dielectric layer and a second dielectric layer on the first dielectric layer. The first dielectric layer includes a first wiring layer. The second dielectric layer includes a first copper pillar layer and a device placement port frame penetrating through the second dielectric layer in a height direction, and a second wiring layer on the first copper pillar layer. A second copper pillar layer is on the second wiring layer. The first wiring layer and the second wiring layer are conductively connected via the first copper pillar layer. A first device is mounted to the bottom of the device placement port frame, a second device is mounted to the second dielectric layer, and a third device is mounted to an end of the second copper pillar layer.

The invention relates to the technical field of elevator safety tongs, and discloses a stable elevator safety tongs capable of reducing equipment loss, which comprises a guide rail, the outer side of the guide rail is sleeved with a safety tongs mechanism, the safety tongs mechanism comprises an initial tong, and the bottom of the initial tong is riveted with a variable tong; a fixed wedge block and a movable wedge block are slidably connected to the interior of the initial clamp, a connecting rod is hinged to the outer side of the movable wedge block, a hinge block is slidably connected to the interior of the connecting rod, and a control mechanism is installed on the outer side of the safety clamp mechanism. According to the stable elevator safety tongs capable of reducing the equipment loss, by changing the triggering condition of the ejector block, when the braking distance needs to be prolonged, the elastic force applied to the ejector block by the buffer spring is increased, the number of the movable wedge blocks rising synchronously is reduced at the same speed of an elevator, otherwise, the number of the movable wedge blocks is increased, and therefore the stable elevator safety tongs can be suitable for braking in different environments; and the use is convenient.

The invention discloses an iron removal device with an automatic iron unloading function. The iron removal device comprises an iron unloading rubber belt and a driving motor for driving the iron unloading rubber belt. The iron unloading rubber belt comprises an adsorption face, a magnet is arranged on one side away from the adsorption face of the iron unloading rubber belt, and a gap is reserved between the magnet and the iron unloading rubber belt; and the iron removal device further comprises a sensing device and a controller. When the iron unloading rubber belt is close to or in contact with the magnet, an induction signal is generated; and according to the induction signal, the controller controls the driving motor; and a signal input end of the controller is in communication connection with the sensing device, and the control output end of the controller is electrically connected with the driving motor. According to the iron removal device, under the condition that the power consumption and equipment losses are reduced, adsorbed iron can be efficiently removed, and the effects that the energy is saved, the consumption is reduced, the service life of the iron removal device is prolonged, device safety is ensured, and labor intensity of personnel is reduced are achieved.