141results about How to "Significant Advantages" patented technology

A recycling treatment method for feces and wastewater in a large-scale livestock and poultry breeding farm includes the following steps: (1) pre-treating the feces and wastewater in the large-scale livestock and poultry breeding farm in a pretreatment unit to form slurry; (2) feeding the slurry into an energy recovery unit, and performing solid anaerobic digestion in a solid anaerobic reactor to obtain an energy gas, methane; (3) performing solid-liquid separation to the digested slurry to generate wastewater, which is then fed into a UASB reactor to perform further anaerobic fermentation to remove organic pollutants from the wastewater; (4) feeding the treated wastewater into a nitrogen and phosphorus removal unit to perform nitrogen and phosphorus removal treatment; (5) separating and purifying a precipitate, which is generated in the nitrogen and phosphorus removal unit and mainly includes magnesium ammonium phosphate, to obtain an organic fertilizer additive, wherein the nitrogen removal process is autotrophic nitrogen removal and can reduce aeration quantity by 62.5% without addition of any carbon sources, thus saving large quantity of operation cost; and (6) feeding the treated wastewater into a deep-treatment unit to remove bio-refractory substances and disinfect the wastewater so as to finally reach emission and recovery standards of wastewater.

The present invention relates to one kind of intelligent measuring and regulating instrument for assembled milling cutter machining spiral bevel gear. Technologically, the intelligent measuring and regulating instrument includes one height measuring head with one digital dial gauge mounted in the end of the horizontal oscillation arm, and one radial measuring head with one digital dial gauge coaxially with the height measuring head. The measured data is stored, analyzed and processed in a computer and the processed result is shown in a display screen. The present invention can raise the milling cutter measuring and regulating precision and efficiency, and has simple structure and low manufacture cost.

The invention relates to a detecting device for detecting IGBT, comprising a shell and a testing circuit internally installed in the shell. The testing circuit consists of a power board, an I / O board,a central processing unit, a driver module, a micro breaker, an automatic coupling voltage regulator, a rectifying circuit, a filter circuit and an inverter circuit. A single-phase 220V, 50Hz alternating current power supply source is connected with the original edge of the automatic coupling voltage regulator in series; the secondary edge of the automatic coupling voltage regulator is connectedwith an AC voltmeter in parallel and inputs alternating voltage into a diode rectifier bridge module; the positive end of the automatic coupling voltage regulator is connected with a limit resistor inseries, is connected with a filter capacitor, a equalizing resistor and a DC voltmeter in parallel, and is connected with a fuse in series; +P and -N bus is connected with an inverse bridge formed byan IGBT module in parallel; the output end of the inverse bridge is connected with an output resistor; and the other end of the resistor is connected with the middle connecting point of the equalizing resistor. By detecting the PWM waveform of the output resistor, the detecting device can ensure the condition of the IGBT, has simple and easy measuring method, is time saving and labor saving, andis applicable to various IGBT detections.

The invention discloses a cell phone based on the mediate and a system operated with the PC, comprising: the cell phone installed with the mutual operation proxy, the PC installed with the mutual operation system; the mutual operation system comprises: a user operating interface module, a mutual operation mediate, a netting communication module and a driving program module, a server which comprises a driving program bas, a content database, a content adapting module and a netting communication module; the cell phone and the PC are connected by the physical way; the PC and the sever are connected by the physical way. In addition, the invention also discloses a method based on the mediate and a system operated with the PC, firstly connecting the cell phone and the PC; then processing the following four operations: obtaining the proper content to the cell phone via the server, automatically shifting the PC / internet to the cell phone; sharing and adapting between the cell phones; processing the data backup, address list synchronization, schedule synchronization and other operations.

The invention discloses a serial communication protocol for a controller. The serial communication protocol comprises the following steps of: 1, for a master machine, preparing application layer data through the master machine, transmitting data to a slave machine, waiting an acknowledgement signal of the slave machine, retransmitting the data if the received signal comes from an unexpected slave machine, retransmitting the data if the inter-frame overtime or intra-frame overtime is generated, retransmitting the data if the acknowledgement signal is NAK, and finishing the operation if the acknowledgement signal is ACK; and 2, for the slave machine, receiving the data transmitted by the master machine, not responding and receiving the data again if the slave machine is busy, not responding and receiving the data again if the received data are nonnative identification (ID) data, receiving the data again if intra-frame overtime is generated, transmitting the NAK acknowledgement signal to the master machine if the data verification is wrong, and processing the application layer data and transmitting the ACK if the verification is successful. The serial communication protocol for the controller aims to overcome defects in the prior art, is stable in communication and can simplify task load of a microprocessor.

The invention is a composite sensing device and its quantitative degas device. The density sensor and the temperature sensor connect with the detecting container, the slurry pump transmits the waiting detected well liquid by the conveying tube, and the conveying device connects the quantitative degas device. The quantitative box of the degas device is set at the bottom of the degasser, and the bottom of its side wall has the inlet snout and connects the conveying tube, the bracket is on the quantitative box and has the tray of degasser, and the tray has the limiting slurry inlet, the conductive sensing device is equipped on the bracket and can contact the raw liquid position of the quantitative box. The invention can online correctly detects the density of the well liquid, the conductive ratio and the temperature.

A distant hydridization method between the subfamilies of cyprinid includes chealth eugamic male and female parents catalyzing female, artificial fertilization, incubation and naturalizing to obtain to descendant with strong bionergy. Its advantages are high disease resistance, high survival rate and high growth speed.

The invention discloses an intelligent charging device for an electric vehicle. The intelligent charging device comprises a charging pile, an executing mechanism and a charging head. The executing mechanism is connected with the charging pile, the charging head is connected with the executing mechanism, and the executing mechanism is used for automatically identifying vehicles and sending the charging head to the electricity getting end of the vehicle.

The present invention provides a method for authenticating dendrobium officinale by using a HPLC fingerprint. The method comprises the following steps: (1) establishing a HPLC fingerprint of dendrobium officinale: a, precisely weighing powder of a dendrobium officinale medicinal material, adding water or a monohydric alcohol to carry out extraction and concentration, extracting by an organic solvent, carrying out treatments of recovering, concentrating, volume metering, filtering to obtain a tested sample solution; b, adopting a high performance liquid chromatography method to analyze the tested sample solution to obtain the fingerprint of the dendrobium officinale medicinal material; (2) establishing a standard fingerprint of the dendrobium officinale: carrying out analysis and comparison for 20 batches of the dendrobium officinale medicinal materials to obtain the standard fingerprint of the dendrobium officinale and the similarity of the dendrobium officinale medicinal material, wherein the similarity is more than 0.8; (3) adopting the same steps to detect the fingerprint of the dendrobium officinale counterfeit / substitute, carrying out comparison for the fingerprint of the dendrobium officinale counterfeit / substitute and the standard fingerprint of the dendrobium officinale, calculating the similarity, wherein the similarity is less than 0.6. According to the present invention, the standard fingerprint and the similarity can be adopted to effectively monitor the authenticity of the dendrobium officinale and the medicinal material quality.

The invention discloses a 3D culture, passage, cryopreservation, recovery and identification method for in-vitro organoids based on small intestines of different segments of mice. The method comprisesthe following steps: (1) separating recesses of duodenum, jejunum and ileum segments of mice; (2) performing 3D culture on the recesses of the duodenum, jejunum and ileum segments of mice, and forming organoids; (3) performing passage on organoids of small intestines of mice; (4) performing cryopreservation on the organoids of small intestines of mice; (5) performing recovery on the organoids ofsmall intestines of mice; (6) preparing frozen sections of the organoids of small intestines of mice; and (7) performing immunofluorescence labeling and identification on the frozen sections of the organoids of small intestines of mice. Compared with the prior art, the method disclosed by the invention optimizes a recess extraction manner, an in-vitro culture system and a culture medium based on the recesses of the small intestines containing stem cells, and comprises the steps of complete culture, passage, cryopreservation, recovery and identification. The small intestine organoids obtained by the method are capable of performing repeated passage, and the passage organoids have character stability.

The invention relates to a preparation method of boron nitride / sialon composite material by adopting boron-rich slag. The preparation method comprises two steps: the first step is that synthesis sialon powder BN / (Ca, Mg) Alpha' : 1. crushing, 2. ball milling, 3. screening, 4. magnetic separating, 5. proportioning according to mass percent: 7.94 to 45.79 portions of boron-rich slag, 12.19 to 58.78 portions of silicon fume, 3.82 to 19.78 portions of bauxite, 21.70 to 35.41 portions of carbon black, 6. wet mixing with anhydrous ethanol as the medium, 7. drying with the temperature 60 DEG C; 8. dry mixing, 9. molding forming, 10. high-temperature sintering under one atmospheric pressure, temperature of 1450 to 1500 DEG C, insulation for 6 to 10 hours and protection of nitrogen; 11. eliminating carbon residual by burning; the second step is that mixing the powder obtained by the first step and additive CaCO3, and after the molding forming, the final product sialon ceramic composite material BN / (Ca, Mg) Alpha' is made by sintering through burying powder in furnace under temperature 1600 to 1700 DEG C; all properties of the product are good. The invention has simple process, low production cost, and starts a new way for boron-rich slag integrating utilization and decreases environment pollution.

This invention relates to a process method to make stainless steel tube without gap, which comprises the following steps: providing the required steel ingot; forging; heating tube blank; drilling and rolling; processing the rolling, empty sinking, cold-drawing; again empty sinking, final product annealing and final product making.

Disclosed is a bypass dual loop refrigerator which has alterably evaporator vaporizing area of the cold-storage case, comprising main circular loop and by pass loop. The main circular loop comprises compressor, condenser, drying filter, three way electromagnetic valve, master capillary, refrigeration evaporator, cold storage evaporator, liquid tank. The bypass circular loop comprises compressor, condenser, drying filter, three way, electromagnetic valve, bypass capillary, cold storage evaporator, storage tank. And the cold-storage case evaporator vaporizing area of the main circular is different from that of bypass loop. The present invention could control effectively and independently temperature of every cold storage case insure temperature of the cold storage case to fluctuate within small range, enhance fresh keeping characteristic of the refrigerator.

The present invention relates to Mn series Ca containing phosphide solution in the domain of final chemical engineering. The main characteristic is its component and the ratio of its weight is: 20 - 31% H3PO4, 9 - 16% MnCO3, 0.5 - 4% HNO3, 0.3 - 3% CaOH and water it until 100%. The phosphating solution can make black, compact and twinkling phosphating film on the surface of metal, and there are also in the phosphating film. It also improved the capability of phosphating film. The experiment proves that: The phosphating film can enhance the wearable and anti-corrosive capability. The phosphating solution is steady and its component is suitable. It's easy to prepare the solution and cost little, and it's also passes over the process of copper-plates. It is the preparation of updates in phosphating solution belongs to manganese catalyst.

A composite foaming material is prepared from foamed polystyrene particles, silicate cement, powdered coal ash, affinity agent and foaming agent through proportional mixing. Its in-situ application method includes such steps as foaming the polystyrene particles by portable electrothermal steam foaming machine, stirring cement mortar by stirrer, sequentially mixing with others, stirring, and in-situ pouring.

The invention relates to a high-speed feeding and packing device for a particle material packaging machine and a control method of the high-speed feeding and packing device. The device comprises a particle material stirring mechanism, a drum type packing pump mechanism and a packaging machine system controller. The drum type packing pump mechanism comprises a pump body and a drum type packing pump. The drum type packing pump comprises V-shaped groove metering cups, a drum drive stepping motor, a drum indexing change gear set and a drum type packing pump rotating shaft. The impendent particle material feeding and packing device for the particle material packaging machine is adopted, according to the particle material feeding and packing process, the stepping motor directly drives the rotating process of the drum type packing pump, the rotating process is the particle material feeding and packing process and the material storing process of a plurality of V-shaped groove metering cups in the drum type packing pump, the particle material feeding and packing process only needs time for feeding, the time for feeding and packing particle materials is effectively shortened, and the packaging speed of the whole packaging machine is increased. The high-speed feeding and packing device is suitable for continuous particle material packaging and intermittent type (clamping plate type) particle material packaging.

The invention provides a DQ-Q&T method for 1000MPa grade steel plate with thickness less than 80mm. The steel plate comprises the chemical composition of, by weight, 0.10-0.1 9% of C, 0.15-0.50% of Si, no more than 1.45% of Mn, no more than 0.01% of P, no more than 0.002% of S, no more than 3.00% of Ni, 0.30-0.65% of Cr, no more than 0.20% of Cu, no more than 0.10% of Alt, no more than 0.08% of Nb, 0.35-0.55% of Mo, no more than 0.12% of V, no more than 0.06% of Ti, no more than 0.003% of B and the balance Fe. A 1000MPa-grade quenching and tempering steel plate for hydropower with excellent strength, plasticity and low temperature impact toughness can be obtained by the reasonable design of chemical composition matching with corresponding cooling and quenching and tempering process.

The invention provides a method for measuring vehicle wheelbase and front / rear overhang. The method comprises the following steps: a pair of photoelectric measurement light curtains, vertical to the ground, are arranged ahead of the vehicle driving direction; laser scanners are arranged under light curtain receiving ends or transmitting ends respectively, and the scanning surface of the laser scanners is parallel to the horizontal plane; a vehicle drives to the photoelectric measurement light curtains along the direction vertical to the photoelectric measurement light curtains; and when the vehicle head triggers the photoelectric measurement light curtains, the laser scanners scan vehicle wheels near two axles closest to the photoelectric measurement light curtains to collect data and calculate wheel base and front overhang value. The method can calculate the front overhang and rear overhang of the vehicle and pin wheel base of a semitrailer; the structure is simple; and measurement result is accurate.

The invention discloses a laser beam fast automatic positioning measurement device and a method thereof in laser tracking measurement process. According to the method, a laser tracking measurement device is used as a supporting platform, a right angle ball rod component is rapidly set up to form a rectangular coordinate system, three standard balls installed with wireless distance measurement devices are connected through two rod pieces to form the right angle ball rod component, the sphere center distance is a fixed value, a signal is sent to the wireless distance measurement devices through a self-positioning remote control at the position of a measured target, the distance is calculated through an information processing platform, and thereby the spatial three-dimensional coordinates of the target position can be determined; the spatial three-dimensional coordinates are sent to the laser tracking measurement device to guide the laser beam to roughly point to the target position; the laser beam is captured by a photoelectric detection part which is installed on the self-positioning remote control and automatically shot to the center of a reflecting portion to complete the navigation and automatic positioning of the laser beam; and the precision measurement for the target position can be completed by combining the laser tracking measurement device.

The invention relates to a water-cooled motor casing double-cooling return circuit structure, a water-cooled cooling circuit is arranged in the inner layer of a motor casing, the water-cooled cooling circuit is composed of a water-cooled return circuit outer wall, a water-cooled return circuit inner wall and a second reinforcing rib, the water-cooled return circuit inner wall is arranged inside the water-cooled return circuit outer wall, a cooling water groove is formed between the water-cooled return circuit outer wall and the water-cooled return circuit inner wall, the cooling water groove is communicated with a water nozzle, an air-cooled cooling circuit is arranged in the outer layer of the motor casing, the air-cooled cooling circuit is composed of the water-cooled return circuit outer wall, the motor casing outer wall and a first reinforcing rib, the motor casing outer wall is arranged outside the water-cooled return circuit outer wall, aluminum alloy is squeezed to form a cantilever vent hole which is formed between the motor casing outer wall and the water-cooled return circuit outer wall, and a fan is arranged at one end of a rotor. An air-cooled and water-cooled double-cooling return circuit is arranged in the motor casing, air inside a motor is made to flow, heat of the rotor is transmitted to a water-cooled structural part through air flowing and taken away through cooling water of the water-cooled cooling circuit, heat dissipation capacity and cooling cability of the motor are improved, and loading ability of the motor is increased.

The invention is a package catcher, composed of the cotton catching head group linked by cotton table and cotton feeding pipe, and the riser, the cotton catching head only making lift motion and the cotton table able to move back and forth on the trolley wheel; two cotton catching heads become a group, the cotton beam output pipe and two down-inclining dropping boxes set on the case of the cotton catching head, and the cotton catching beater and purifying beater set inside the cotton catching head. The purifying beater can make on-line elimination of the impurities carried by the cotton beam such as cotton seeds, cotton scraps and so on.

The invention discloses an air pump and steering oil pump integrated system for a new energy automobile. The air pump and steering oil pump integrated system comprises an air pump, a steering oil pump, a motor and a motor controller, wherein the motor is a dual-output-shaft motor; the air pump and the steering oil pump are respectively connected with the first output shaft and the second output shaft of the motor; the motor controller is connected with the motor and used for controlling the operation of the motor.

The invention relates to a PLC programming controller of an electric wheelchair. The controller comprises a power control circuit and a digital operation and display control circuit. The power control circuit comprises a microprocessor DSP, a logic processing circuit, a power driving circuit, a motor, a current and voltage detection circuit, a communication module 1 and an electronic voice alarm and failure detection circuit. The digital operation and display control circuit comprises a single-chip microcomputer, a handle operating lever, a processing circuit, a loudspeaker I / O module, a button I / O module, a liquid crystal display and a communication module 2. According to the controller of the invention, a MOS pipe is used to carry out direction switching. There is no contact. The controller is safe and reliable. A service life is long and efficiency is high. A back electromotive force is used to measure a motor rotation speed. A measurement speed is fast. The structure is simple and maintenance is not needed. A MOS pipe internal resistor is taken as a current sampling resistor. An added sampling resistor is not needed. Heating is reduced and a detection speed is increased. A digital mode is used to carry out transmission. A line is simple and accurate.

This invention relates to a preparation method of test paper for detecting alcohol content in saliva and test paper prepared thereby. Wherein, using pure cotton pulp filter paper as the bottom carrier of test paper; with solid chemistry technique, adding in turn the tetramethyl benzidine, phosphate buffer, HRP, alcohol oxidase and BSA on the paper, and multiple-step vacuum drying. This invention is safe and reliable for test, can read result directly with color-matching card, and has well repeatability for wide application.

The invention discloses a machine water jacket structure and a press mounting technology. Each of the two ends of each of an inner casing and an outer casing of the water jacket is provided with one or more yin-yang teeth formed by circular raised grooves or dented grooves; the yin-yang teeth on the inner casing and the yin-yang teeth on the outer casing can be embedded into each other and meshed with each other; each of the two ends of each of the inner casing and the outer casing is provided with one or more circular sealing grooves; the sealing grooves are located on the yin-yang teeth; a sealing ring is located in each sealing groove; the inner casing is located on the fixed mould; the sealing ring is embedded in the inner casing or the sealing grooves at two ends of the outer casing; the inner casing is sleeved with the outer casing, and the outer casing is subjected to axial localization; and the upper and lower pressure tooling is started to cause the yin-yang teeth of the outer casing and the inner casing to be meshed with each other, and the sealing ring is tightly pressed to fill the sealing grooves to achieve sealing. The machine water jacket structure and press mounting technology disclosed by the invention aims to overcome the deficiency in the prior art, and to provide a machine water jacket structure and press mounting technology which can increase the production efficiency and machining accuracy and reduce the technology cost.

The invention is double refrigeration loops freezing and chill box which can upgrade the refrigeration ability. It includes a chill compressor, condenser, three-way electromagnetic valve, the first freezing capillary, the second freezing capillary, the freezing evaporator, a chill compressor, a chill condenser, a chill capillary, a chill evaporator, a subcooler, a temperature sensor, controller. In the freezing loop, there has two alternative refrigeration agent loops between the condenser and the evaporator through the three-way electromagnetic valve. When the cold quantity in the freezing chamber is enough, the refrigeration agent from the freezing condenser is cooled through the subcooler and enters the second freezing capillary, the cold quantity of the subcooler is provided by the chill loop. The invention can make the two loops work independently, maintains itself best efficiency, in necessary state, the freezing loop my lend cold quantity form the chill loop in order to increase the freezing ability.

The invention discloses a soft control method of a motor. In the starting stage of the motor, a controller reads a preset output current value F and the linear change rate K of a preset output current, wherein the preset output current value F corresponds to preset torque needing to be achieved when the motor is started, the output current of the controller changes in a curve mode, and specifically, a curved instant tangent slope K1, namely an actual instant change rate of the output current of the controller at the current moment, changes from 0 to K, K is larger than 0; when K1 reaches K, the output current of the controller changes continuously according to a straight line with the slope being K; when reaching F, the value of the output current is kept by the controller, and the starting stage is finished. The soft control method of the motor aims to overcome the defect that in the prior art, gaps are formed among gears in the starting stage of the motor and then impact and collision are produced, and can effectively avoid impact and collision among the gears.

An improved dual-glass window with louver window between two glasses features that the fixing frame of the said dual-glass window has a transverse frame unit in it, the said transverse frame has two axles able to be turned and a magnetic angled regulator for regulating its angle, and a vertical frame of the said louver window has a magnetic open-close regulator for regulating the open (or close) state of louvers. Its advantages are simple structure, and high safety and reliability.

The invention relates to a disc flow allocation radial variable high pressure plunger pump. An oil allocation disc refers to a circular oil allocation disc; an oil-through window, a static pressure support seal belt and a noise reduction groove are arranged in the oil allocation disc; an oil-through channel is formed by combining the oil allocation disc with a pump body and a rotor; plunger holes in the rotor are arranged in the radial direction; the flow allocation plane of the rotor is tightly adhered to the flow allocation disc; the plunger holes are designed into that an inclined angle is formed between the plunger holes and the axis of a transmission shaft; plungers are installed inside the plunger holes of the rotor; a hinge pin is tightly assembled on the pump body and is in clearance fit with an assembling hole in a stator; a rotating bearing is installed on a pump cover; a shaft seal is installed on the transmission shaft; a variable mechanism comprises a variable plunger which is matched with a limiting plunger, a limiting spring and a limiting body. As a disc flow allocation structure is adopted, the disc flow allocation radial variable high pressure plunger pump has simplified design and repairability, is low in manufacturing cost and convenient to use; as steel pieces can be used, the selection range of materials is expanded, and the standardization and generality of working are facilitated; and the performance of an original reusing pump and the system optimization are improved with relatively less transforming cost.

The invention discloses a transforming method of random space vector PWM strategies. When a randomized PWM strategy ST1 is transformed into a randomized PWM strategy ST2, a random number matrix of the ST1 is generated, calculation is carried out to obtain a digital signal SIG1 of an output voltage of an inverter, and a spectral characteristic value of the SIG1 is calculated; all elements of a random number matrix RS2 of the ST2 are set as unknown variables, an expression of a digital signal SIG2 of the output voltage of the inverter is calculated, and then a mathematic expression of a spectral characteristic of the SIG2 is calculated; and then a target function of transformation from the ST1 to ST2 is constructed and optimization is carried out, thereby obtaining a numerical value of the RS2. According to the technical scheme, mutual transforming between different random SVPWM strategies can be realized and the complex strategy can be transformed into the simple one; application of the random SVPWM technology and development of the new strategy can be realized conveniently; and thus the method has the great practical value.