2356results about How to "reasonable design" patented technology

The invention discloses a system for intelligent charging reminding and reservation charging of an electric vehicle. The system comprises a vehicle intelligent terminal, an electric vehicle battery set, an electric vehicle charging station and a cloud computing center; the vehicle intelligent terminal is connected with the electric vehicle battery set and the cloud computing center; and the cloud computing center is connected with the electric vehicle charging station. When the vehicle intelligent terminal of the electric vehicle detects that the remaining electric quantity of the electric vehicle is not sufficient, a voice system of the vehicle intelligent terminal gives an electric quantity alarm to request a driver to conduct charging operation, pushes the travelling distance using the remaining electric quantity to the driver, estimates consumption of the electricity quantity of the distance from the vehicle to all near charging stations, shows the number of unused charging piles of all the near charging stations, and recommends the driver to choose which charging station to charge. According to the system for intelligent charging reminding and reservation charging, the problems that in the prior art, estimation of the remaining electricity quantity and travelling distance is not accurate, and the electric vehicle has no electricity during travelling caused by failing to select the appropriate charging station can be solved.

The invention discloses a method for a coal and gas outburst simulation experiment. The method comprises the following steps that a, a simulation device is prepared; b, broken coal is contained in an outburst box, briquette coal pressing is carried out, then vacuumizing treatment is carried out, gas of one barometric pressure is filled into the outburst box after vacuumizing is completed, and then pressurization continues to be carried out until a coal body is completely compacted; c, an end cap on an outburst opening is taken out, an explosion venting device is arranged on the outburst opening, the gas is filled into the outburst box until absorption balance is achieved, then briquette coal is pressurized again until the stress state of a coal layer needing to be simulated is met, finally, coal and gas outburst is stimulated, gas flow is shot by a high-speed camera, and data are collected. The method is reasonable in design, simple in structure and easy to implement, multi-dimensional pressure loading can be achieved, inflation pressure is large, inflation is more even, sealing performance is good, the data are convenient to collect, and an important means is provided for deeply studying the coal and gas outburst mechanical action mechanism and reducing coal and gas outburst accidents.

The invention discloses an embedding accuracy control construction method for an embedded part of an overlong equipment foundation platform, including the following steps: firstly, processing the embedded part and the installation screw of the embedded part; secondly, molding construction of the lower middle reinforced concrete structure of the foundation platform needing construction: a plurality of vertical reinforcing steel bars extend out from the top of the lower middle reinforced concrete structure under construction of molding and are arranged vertically; thirdly, installing the installation screw of the embedded part; fourthly, installing a nut at the bottom of the threaded section of the installation screw of the embedded part; fifthly, installing and positioning the embedded part; sixthly, installing a nut on top of the threaded section of the installation screw of the embedded par; seventhly, molding construction of the upper reinforced concrete structure of the foundation platform needing construction; and eighthly, subsequent construction treatment. The method has in design, simple construction steps, easy control of construction quality, high construction accuracy and good in use effect, and can solve the problems of the existing embedding construction method of embedding parts that the embedding accuracy is inconvenient to control, the embedding accuracy is low, the construction quality is poor, the investment cost is high, the construction period is long, and the like.

The invention discloses a frequency hopping communication anti-interference method based on cognitive radio. The frequency hopping communication anti-interference method comprises a frequency hopping communication interference spectrum sensing method, a method for obtaining spectrum windows by eliminating interference frequency points and a frequency hopping key sharing and transmitting method under an interference condition. Relevant ideas of the cognitive radio are combined into frequency hopping communication, and a plurality of spectrum windows with low interference temperatures are dynamically selected by sensing a surrounding electromagnetic environment as transmission frequency bands for frequency hopping signals, so that the adaptability of a radio frequency-hopping broadcasting station to the electromagnetic environment can be improved, the utilization rate of spectrum resources is increased, malicious interferences of enemies and self-disturbances between broadcast stations can be further suppressed, the network capacity of a frequency hopping communication network is improved, and the error rate of the whole frequency hopping system is reduced.

The invention provides an impeller type axial and circumferential compound impactor, which includes a conversion joint, a motor assembly and an impact assembly. The front end of the motor assembly is connected to the impact assembly, and the rear end is connected to the conversion joint. The impeller of the motor assembly converts the liquid energy into rotational mechanical energy, thereby driving the rotary valve of the impact assembly to rotate. There are holes, so that the drilling fluid periodically enters the hammer head and the hammer body barrel cavity, and the hammer head periodically hits the hammer body barrel under the push of the liquid to produce circumferential shocks, and at the same time, the axial holes of the rotary valve and the valve cover are periodically dislocated. Change the liquid pressure to generate high-frequency axial vibration, and transmit the axial and circumferential impact force to the drill bit through the lower joint to eliminate the stick-slip phenomenon, protect the drill bit, and improve the rock-breaking efficiency of the drill bit. The impeller-type axial and circumferential composite impactor of the present invention uses drilling fluid to generate two impacts, axial and circumferential, and can effectively improve drilling efficiency.

The invention discloses an automatic server deployment method based on a PXE (pre-boot execution environment). The deployment method comprises the following steps: starting a PXE client side from the PXE, configuring protocol DHCP (dynamic host configuration protocol) information, sending a client side identifier pre-stored in the PXE client side to a PXE server; according to the client side identifier of the PXE client side, distributing the corresponding configuration information to the PXE client side through the PXE server, so that the PXE client side can download a PXE bootstrap program according to the client end IP (internet protocol) in the configuration information and address of the PXE bootstrap program; completing PXE installation and configuration through the PXE bootstrap program. Compared with the prior art, the automatic server deployment method has the characteristics of being reasonable in design, simple and convenient to operate, can improve the efficiency of identifying the PXE client side through the PXE server, saves the operation time, improves the working efficiency, relieves the workload of deployment staff and reduces the labor intensity.

The invention discloses an eccentric rotary cone type stone crushing device for mineral processing, which comprises a bottom box with a hollow structure inside the bottom box, and a grinding basket is horizontally slidable inside the bottom box, and a grinding basket is connected with the inner wall on the right side of the bottom box. The first return spring, the driven shaft is rotated in the bearing table, the driven shaft is provided with a driven pulley, the driven shaft extends into the grinding basket, and the side wall of the conical cover plate is slidingly provided with thread positioning The inside of the grinding basket is connected to the flexible bellows through the channel formed by the bearing platform, the crushing cone and the conical cover plate; the design of the invention is reasonable, and the distance between the pressing plate and the crushing cone can be adjusted according to the specific ore size. The adjustment is stronger, the eccentrically set driven shaft drives the crushing cone to rotate, and the conical cover plate can move left and right under the action of the second return spring, which has a good buffering and shock absorption effect and prevents the ore from crushing the cone Stuck, greatly reducing the failure rate and improving work efficiency.

The invention discloses a limited measuring point based air conditioning system performance online detection method. Measuring points are arranged in an operating air conditioning system to record measuring point parameters in real time, and the refrigerant flow of the air conditioning system is obtained through compressor flow fitting calculation; and heat exchange amount calculation of a condenser and an evaporator is carried out in combination with a refrigerating cycle theory, the actual refrigerating capacity, the compressor actual power and the real-time EER (energy efficiency ratio) of the air conditioning system are obtained, the air volumes and pressure drop of an indoor unit and an outdoor unit are obtained through calculation based on a fan performance curve and a fan resistance-heat exchanger characteristic equation, and online detection on the performance of the air conditioning system is achieved. According to the method, design is reasonable, work is reliable, and the operating air conditioning system can be monitored online in real time without demounting instruments.

The invention relates to an intelligent high-pressure cleaning machine for glass curtain walls. The intelligent high-pressure cleaning machine includes a waterproof four-wheel drive vehicle, a nozzle group, a rotor, a camera, a window scraper, a liquid pipe, an electric wire, a pipeline reel, a high-pressure water pump, a cleaning liquid bucket, and a water bucket. , power supply, and remote control. The intelligent high-pressure cleaner is powered by the building body, supplied with water and cleaning fluid. The mooring technology solves the battery life and safety problems of the intelligent high-pressure cleaner. The water pump provides power and the cleaning effect is good. Put the intelligent high-pressure cleaning machine at the designated position and turn on the rotor. The thrust of the rotor is greater than the reaction force generated by the nozzle group when it is working, so that the intelligent cleaning machine is always attached to the surface of the glass curtain wall. The nozzle will spray high-pressure water mist and cleaning fluid on the glass curtain wall. Quick cleaning, and finally the window scraper scrapes off the water droplets remaining on the glass surface. This intelligent high-pressure cleaner for glass curtain walls has simple structure, easy operation, high cleaning efficiency, and no safety hazards.

The invention provides a mold-releasing oil automatic spraying device for an aerated concrete block. The mold-releasing oil automatic spraying device for the aerated concrete block comprises a spraying rack, a mould box accommodating space is reserved below the spraying rack, a travelling mechanism which can perform horizontal movement transversely is arranged on the spraying rack, a rotating mechanism which can rotate axially is vertically arranged on the travelling mechanism, and the lower end of the rotating mechanism is provided with a spraying nozzle which is connected with a mold-releasing oil atomization machine outside. The travelling mechanism moves on a transverse beam to drive the spraying nozzle to move, and the spraying nozzle sprays inner walls of the mould box during moving. The mold-releasing oil automatic spraying device for the aerated concrete block has the advantages of being reasonable in design, greatly reducing the workload, improving the production efficiency, reducing the loss of the mold-releasing oil, spraying evenly and improving the product quality.

The invention discloses a two-level particle product screening device for chemical production. The two-level particle product screening device comprises a bottom plate. A left vertical plate and a right vertical plate are vertically and fixedly arranged on the bottom plate. A screening tank is arranged above the bottom plate and internally provided with a rotation tank. The rotation tank is of a hemisphere shell-shaped structure and is evenly provided with a plurality of through holes. A guiding rod rightwards penetrating the left side wall of the screening tank is horizontally and fixedly arranged on the inner wall of the right side of the left vertical plate. A fan-shaped gear is fixedly provided with a transmission plate, and the diameter of sieve holes in a sieve plate is smaller thanthat of the through holes. The two-level particle product screening device achieves screening of particle-shaped products through rotation of the rotation tank, two-level screening of the particle-shaped products is conducted through the sieve plate, shaking and scattering of raw materials in the rotation tank are accelerated through rotation of the rotation tank, and the screening efficiency is improved; and a scraper blade moves left and right to conduct transverse scraping on particle raw materials on the sieve plate, the particle products are promoted to penetrate the sieve holes of the sieve plate, and the screening efficiency of the particle products is greatly improved.

The invention discloses a laser composite manufacturing technology of parts. The laser composite manufacturing technology comprises the following steps: S1, loading a model; S2, preprocessing the model; S3, slicing; S4, performing a material additive manufacturing technology; S5, judging whether surface roughness meets the requirement or not; S6, carrying out laser remelting and laser polishing; S7, judging whether dimensional accuracy meets the requirement or not; S8, carrying out laser ablation and laser engraving; S9, judging whether surface quality meets the requirement or not; S10, carrying out laser quenching and laser oxidation; S11, judging whether the manufacture of the model is finished. The laser composite manufacturing technology integrates the laser material additive manufacturing technology, a laser material subtractive manufacturing technology and a laser surface modification technology, thus being capable of effectively improving the dimensional accuracy, surface smoothness and compactness of the parts, improving the surface quality of the parts, and realizing one-time molding of the parts.

The invention discloses a second-level coal mine rescue robot system. The system comprises a detection robot and a carrying robot, wherein the detection robot detects related environmental information at a place where a coal mine accident occurs in real time; the carrying robot transports the detection robot to a place nearby the place where the coal mine accident occurs from the ground along the existing transportation channel which is formed in a coal mine underground tunnel and synchronously detects related environmental information in the coal mine underground tunnel in real time in the transportation process; and the carrying robot is a wheel robot and the detection robot is a crawler robot. The system has a reasonable design, high intelligentization degree and reliable working performance and is convenient to use and operate; and the carrying robot and the detection robot second-level robot system effectively solves the problems that: the underground conditions of a coal mine are severe, the place where the accident occurs is far away from a well head, the crawler rescue robot has a limited moving range and cannot effectively monitor the environmental information of the place where the accident occurs, and the like.

A high-efficiency spraying device for disinfectant on a building construction site, comprising a car body, a driving motor is fixedly installed on the top of the car body, a driving bevel gear is fixedly installed on the stirring shaft, a runner is fixedly installed coaxially on the left end of the driven shaft, and the runner A connecting rod is hinged on the edge of the left side; the upper side of the lifting block is connected with the first steel wire rope, and the end of the first steel wire rope away from the lifting block is fixed on the upper slider; the rotation type in the car body is equipped with a limit pulley, and the lower end of the lifting block is connected with the second steel wire rope , the second steel wire rope is wound on the limit pulley, and the right end of the second steel wire rope is fixed on the limit baffle; the water drawing sleeve is connected with a liquid outlet hose, and the first one-way hose is installed on the liquid outlet hose. Valve, the invention has ingenious structure and reasonable design. Through the up and down reciprocating movement of the lifting block, the up and down reciprocating movement of the nozzle and the fan is realized, so that the up and down spraying range of the disinfectant is wider, the distance is longer, and the disinfection and sterilization effect is better.

The invention provides a capacitor pin and lead welding machine, and belongs to the technical field of electric welding. The capacitor pin and lead welding machine solves the technical problem that welding precision and quality are not high in the welding process of pins and leads on a cover plate of an existing capacitor. The welding machine comprises a worktable, a welding head is arranged above the worktable, a clamp capable of fixing two pins inserted on the cover plate of the capacitor is arranged below the welding head, the welding head is connected with a lifting driver capable of driving the welding head to vertically ascend and descend, the clamp is connected with a transition drive mechanism arranged on the worktable and capable of driving the clamp to horizontally move, the welding head is made of a conductive material and is connected with a first wire, the clamp is made of a conductive material and connected with a second wire, and the first wire and the second wire can be connected with different poles of a power supply respectively. The welding machine has the advantages of being simple and convenient to operate, high in welding precision and the like.

The invention discloses a large-span tunnel arch secondary lining steel bar binding construction method based on skeleton beams. A bound tunnel arch secondary lining steel bar comprises an outer layer reinforcement mat, an inner layer reinforcement mat and a vertical connecting bar for connecting the outer layer reinforcement mat with the inner layer reinforcement mat. The construction method comprises the following steps of: arranging skeleton beam: arranging a plurality of skeleton beams below a tunnel arch primary supporting structure from front to back, wherein the skeleton beams are arch-shaped beams of which the radiuses are the same as that of the outer layer reinforcement mat, and the plurality of skeleton beams construct a load bearing structure of a tunnel arch secondary lining steel bar; and II, binding the tunnel arch secondary lining steel bar: binding the outer layer reinforcement mat on the upper parts of the plurality of skeleton beams, and suspending the inner layer reinforcement mat on the outer layer reinforcement mat through the vertical connecting bar. The method has the advantages of simple construction process, convenience in constructing, good use effect, high practical value, no damage to a paved waterproof structure and easiness and convenience in controlling the deflection of a large-span station arch secondary lining steel bar.

The invention relates to the technical field of glass processing, and especially relates to a glass container fire polishing machine, which solves technical problems in prior arts such as unreasonable design. The fire polishing machine comprises a frame, and a glass container conveyer belt arranged above the frame. The fire polishing machine is characterized in that: plural sets of fire polishing mechanism are arranged on the frame, wherein the fire polishing mechanisms are orderly arranged along the conveyer belt; each fire polishing mechanism is connected to the frame through an adjustable movable mechanism; the fire polishing mechanisms can move along the conveyer belt with the driving of the adjustable movable mechanism; while moving along the conveyer belt, the fire polishing mechanisms can be elevated in a vertical direction with the adjustable movable mechanism. Compared to prior arts, the glass container fire polishing machine has advantages of reasonable design, simple structure, high heat treatment temperature, and high speed. Meanwhile, flaws appeared during glass bottle production processes can also be solved by the machine. The processed glass containers have good surface fineness, no dust, and basically no pollution.

The invention relates to a screening device which comprises an upper screening machine, a lower screening machine, a frame and auxiliary accessories. The screen machines are both provided with closed screening bins, screens with different screen meshes are installed in the bins, can be horizontally installed, also can be obliquely installed, wherein the inclination is changed within 0 degree-45 degrees. Mixed rock materials with different grain sizes are vibrated by a vibration shaft after entering the screening bins, and rock material with large grain size is left on the first-stage screen, and then is transmitted to a specific stocking point by a first-stage discharging pipeline and a discharging belt conveyer. Rock materials are screened in five stages according to the grain size, the qualified rock material of single grade size is ready to apply, and waste material is ready to abandon. The screening device has simple structure, the screening method is feasible and practical, the operations are easy, safe and convenient, not only the production efficiency is high, but also the quality of rock material in each single grade size can be guaranteed to reach standards, and the qualities and the use performances of an asphalt concrete surface layer and a cement crushed stone base layer can be guaranteed. Therefore, the screening device has wide development prospect.

The invention discloses a temperature control system for the large temperature difference adjustment of a reflow soldering machine and a temperature control method. The control system comprises a programmable logic controller, a plurality of cold air transmission pipelines, refrigerating systems, temperature detection units as well as electromagnetic valves installed on the cold air transmission pipelines and controlled by the programmable logic controller, and the programmable logic controller is connected with heating mechanisms arranged in upper and lower temperature subareas of a plurality of temperature areas. The temperature control method comprises the following steps: 1, newly set temperatures for the upper and the lower temperature subareas in the plurality of temperature areas are input respectively to the programmable logic controller; and 2, the programmable logic controller performs control and adjustment to the temperatures of the upper and the lower temperature subareas in the plurality of temperature areas, including quick temperature adjustment, appropriate temperature adjustment and heat preservation. The temperature control system has the advantages of reasonable design and good use effect, is convenient for installation, arrangement and wiring, and is easy to operate. Besides solving the problem of slow temperature reduction, the temperature control system is used for rapidly and conveniently adjusting the temperature difference between adjacent temperature areas, and addresses the difficulty in setting a temperature difference between an upper temperature area and a lower temperature area of a PCB (Printed Circuit Board).

The invention belongs to the field of switching equipment, and discloses a method for efficiently manufacturing heat exchange pipes. Steel belts are used as raw materials for online continuous pipe manufacturing and the method comprises the following steps of: after the steel belts are uncoiled, performing online continuous embossing to ensure that surfaces with grooves are formed before the steel belts are curled and rounded off; flattening the steel belts molded through rolling to meet the requirement of pipe manufacturing on flatness and storing by an accumulator, and feeding into a molding pre-bending machine and molding; after molding, performing axial welding on line; after cooling on line, polishing and deburring to manufacture blank pipes; and after cooling, sizing for later use. In the method, a novel process for manufacturing an embossed pipe is provided, embossing equipment is installed in a process for manufacturing pipelines by welding steel pipes, embossing is performed on the surfaces of carbon steel or stainless steel belts used by the conventional continuous pipe manufacturing process before rolling and curling, and the inner surfaces or the outer surfaces of the welded steel pipes have embossed groove structures with different specifications, convection, condensation or boiling heat transfer coefficients of heat transfer working media in the pipes are improved. The process is small in additional energy consumption, is convenient to implement and has high production efficiency.

The invention relates to an anti-oxidation composite membrane electrode, which comprises a substrate. The substrate is provided with a transition layer, a conducting layer and a protective layer in turn. The transition layer is made of a metal material (such as chromium, aluminum, titanium, molybdenum, niobium, tantalum, nickel and copper) or a compound material (such as indium oxide, zinc oxide, nickel oxide, vanadium oxide, silicon oxide, aluminum oxide, silicon nitride, aluminum nitride, and silicon oxynitride). The conducting layer is made of silver with high electrical conductivity, a silver-containing alloy or a mixture containing silver metal. The protective layer is made of a metal material (such as the chromium, the aluminum, the titanium, the molybdenum, the niobium, the tantalum, the nickel and the copper) or a compound material (such as zinc sulfide, the zinc oxide, tin dioxide, tungsten oxide, the indium oxide, the nickel oxide, the vanadium oxide, molybdenum oxide, titanium oxide, chromium oxide, niobium oxide and tantalum oxide). The membrane electrode can bear high-temperature thermal treatment and is not oxidized, thereby avoiding electrode oxidation in a sealing process, reducing the resistance of a flat display electrode and improving the display quality of a flat display.

The invention discloses a holographic imaging sand table system. The holographic imaging sand table system comprises multiple stereoscopic models, a projector, a main control computer, a plane imaging device, a multidimensional imaging device and a touch interaction system, wherein the multiple stereoscopic models are distributed on a sand table, the plane imaging device is distributed under the projector, the multidimensional imaging device is used for converting a plane image formed by the plane imaging device into a multidimensional stereoscopic virtual image, projecting the multidimensional stereoscopic virtual image on the multiple stereoscopic models distributed on the sand table, and forming a display effect combining the virtual image with an actual image, the touch interaction system is connected with the main control computer, and the multidimensional imaging device is a multi-pyramid-shaped imaging device which is used for carrying out stereoscopic dynamic imaging at the inside middle part and is formed by splicing multiple light reflecting mediums in isosceles triangular shapes. The holographic imaging sand table system disclosed by the invention is reasonable in design, low in cost, simple and convenient in operation, flexible in control mode, high in intelligentized degree and wide in application scope, and can solve the practical problems that the traditional sand table is long in manufacturing period, is time-consuming, material-consuming and labor-consuming, and does not have a timeline function of changing architecture landform and a function of dynamically showing a distribution boosting process.

The invention discloses a sharing locker system based on the internet of things and a usage thereof. The system comprises a cloud-end system background, a client end and a plurality of terminal lockers, wherein the terminal lockers include an electronic control plate module, multiple built-in electronic lockers and a plurality of prompting devices; the electronic control plate module includes a control chip, and is provided with a power module, a communication module, a GPS locating module, a camera interface, a plurality of latch control interfaces, a plurality of door condition detection interfaces and a plurality of prompting device control interfaces. The sharing locker system based on the internet of things and the usage thereof have the advantages of being reasonable in method design, providing convenience for people to deposit objects, saving great amount of manpower and material resources, and offering with a great economic value.

The invention discloses a medical foldable bedside cabinet. The medical foldable bedside cabinet comprises a cabinet body and a foldable bed, wherein the cabinet body is provided with a containing space for storing the foldable bed, and the bottom of the cabinet body is provided with universal wheels; the foldable bed is provided with an inner bed frame, a first intermediate bed frame, a second intermediate bed frame and an outer bed frame, which are hinged with one another, one end of the inner bed frame is hinged to two side walls of the cabinet body by virtue of a horizontal pin shaft, one end of the outer bed frame is hinged with a pull plate by virtue of a horizontal pin shaft, and when the foldable bed is folded to be stored in the cabinet body, the pull plate can just form a first cabinet door; two sides of the bottom of the second intermediate bed frame are also provided with a push-pull horizontal plate, and when the horizontal plate is pulled out, a supporting rod is inserted into a positioning socket hole so as to fix the horizontal plate. The medical foldable bedside cabinet is convenient to fold and store, not only is the accompanying requirement of the accompanying personnel met, but also the space can be saved, and the management of medical sickrooms can be facilitated; in addition, in the circumstance that the bed is in shortage, the medical foldable bedside cabinet also can be used as an accessory bed to rescue and treat the patient.

The invention relates to a method for preparing paeonol and peony glycosides from root bark of tree peony. It compries following steps: immersing pieces of medical herb of root bark of tree peony in water, extracting through distillation and getting paeonol crystal; extracting dregs of a decoction with alcohol solution, decompressing extract, separating extract with D201 macroporous absorption resin and getting peony glycosides. The invention is characterized by full use of medical herb, increased peony glycosides purity, rational design, low cost, easy operation, good stability and suitability for industrial production.

The invention discloses a magnetic resonance imaging method of magnetization transfer and level choose inversion recovery combined pre-pulse. The method comprises the following steps: I, transmitting an excitation signal: transmitting the excitation signal to a detected object; when the excitation signal is transmitted, applying a magnetization transfer pulse sequence, a level choose inversion recovery pre-pulse sequence and a frequency choose pre-saturation method fat suppression pulse sequence according to the magnetization transfer and level choose inversion recovery combined mode; II, sampling the signal: sampling the magnetic resonance data of the detected object by using magnetic resonance imaging equipment, wherein the sampled magnetic resonance data is an echo signal of the transmitted excitation signal; III, imaging: acquiring vascular image data according to the sampled magnetic resonance data. The method has the advantages of simple steps, rational design, convenience in implementation and good use effect; on the premise that no contrast agent is used for enhancement, high-quality vascular imaging can be obtained and the imaging time is short; the method is a true noninvasive vascular imaging method without using the contrast agent.

The invention discloses a battery negative electrode material mixing device with cyclic grinding equipment. The battery negative electrode material mixing device comprises a mixing chamber; a discharge pipe is arranged at the bottom of the mixing chamber; a stirring mixing device is arranged inside the mixing chamber; the stirring mixing device is composed of a bottom scraper blade, a through hole, a first vertical rod, a second vertical rod, a stirring shaft, a spiral stirring blade and a stirring motor. The battery negative electrode material mixing device is simple in structure, reasonable in design and convenient to use; due to arrangement of a grinding chamber, materials can be ground, a filter plate at the bottom of the grinding chamber can filter out qualified materials obtained after grinding, then, small and large materials are separated out through an inclined plate, large-particle materials can be input into the grinding chamber again through a cyclic feeding device, secondary grinding treatment is performed, small-particle materials are separated out through the inclined plate to be input into the mixing chamber, and the materials and additives are mixed; the stirring mixing device can greatly increase the material mixing speed, the material production time can be shortened, and the production rate can be increased.

The invention discloses a karst area soil nutrient reserve sampling and calculating method. The method comprises the steps that: (1) a dry land is selected at a karst area; (2) the sample land is divided into small samples, and soil augers are firmly drilled into soil in every network; (3) a soil profile stratified sample is dug from every land sample according to soil average thickness, and soil unit weights are determined by using cutting rings; (4) the soil samples are naturally air-dried in a shade, and are filtered; plant roots in soil samples in the cutting rings are removed, washed by using clear water, and bake-dried to constant weight; and the plant roots are weighed, such that root biomasses are obtained; (5) according to a soil organic carbon content and soil unit weight relationship scatter-plot established according to ecosystem soil profile data, organic carbon contents are determined, and soil unit weights are calculated; (6) soil nutrient densities are calculated according to soil volumes; and (7) according to soil nutrient densities of the samples of the ecosystem, unit-area soil nutrient reserve is obtained. The method is simple, easy, convenient, time-saving and labor-saving, and has high operability. With the method, karst area soil nutrient reserve data can be accurately obtained.

The invention provides a mine-used dust concentration sensor having the automatic cleaning function. The sensor comprises a sensor shell, the sensor shell is provided with an air inlet nozzle and an air outlet, a monitoring dark chamber is formed inside the sensor shell, the monitoring dark chamber comprises a scattering chamber body and a monitoring chamber body, the scattering chamber body is communicated with the air inlet nozzle and the air outlet, a laser device is arranged, the monitoring chamber body is provided with a photosensitive diode and a circulation pipeline, the two ends of the circulation pipeline are communicated with the monitoring chamber body and arranged oppositely, and the circulation pipeline is internally provided with a circulating fan and a dust filter screen; the sensor is characterized in that when dust concentration is detected, the circulating fan continuously sucks air adjacent to the surface of the photosensitive diode into the circulation pipeline for filtration and sends fresh air obtained after filtration back to the surface of the photosensitive diode, so that a clean air film layer is formed, dust is prevented from adhering to the surface of the photosensitive diode in a sucked mode, and thereby the detection sensitivity of the dust concentration sensor is improved.

The invention relates to an odd-viewpoint, free and stereo sub-pixels arranging method based on a vertical lenticular lens grating, belonging to the technical field of sub-pixel arrangement on a free and stereo display device. In the invention, red, green and blue sub-pixels on the display device are separately arranged; homochromatic sub-pixels are arranged in a row in the horizontal direction; circular arrangement in arrangement modes of the red, green and blue sub-pixels is utilized in the vertical direction; one group of the red, green and blue sub-pixels in the vertical direction constitutes a pixel unit; the lenticular lens grating is parallelly arranged in the front of the display device; and lens stripes on the lenticular lens grating are vertically arranged. In the invention, thestructure is simple and the design is reasonable; the lenticular lens grating is vertically arranged; and all colors of viewpoints can be seen; when an observer changes the view angle, the switchoverof the viewpoints is smooth without feeling of picture jumping, and black lines among the sub-pixels can be avoided being simultaneously seen by left and right eyes; and narrow sides of the red, green and blue sub-pixels are horizontally arranged on the display device, therefore, the grating distance of the lenticular lens grating is greatly decreased and the resolution of stereo play images is effectively improved.