99results about How to "Achieve mixing" patented technology

The invention relates to a multifunctional blending and liquid supplying vehicle, which comprises a chassis, wherein an operation platform, a hydraulic oil tank, a dry powder feeder, an operation box for an electrical control system, a lorry-mounted crane and a liquid adding tank are fixedly arranged above the main beam of the chassis, wherein a centrifugal pump, an exhaust manifold and a suction manifold are arranged on each of two sides of the middle part of the main beam of the chassis, the exhaust manifold is communicated with the water outlet of the centrifugal pump, and the suction manifold is communicated with the water inlet of the centrifugal pump; the liquid adding pump is fixedly arranged on the side wall of the liquid adding tank, the water inlet of the liquid adding pump is communicated with the liquid adding tank, and the water outlet of the liquid adding tank is communicated with the exhaust manifold; a discharge opening in the lower end of the dry powder feeder is communicated with the exhaust manifold; the engine of the chassis is connected with a hydraulic pump, and the hydraulic pump is connected with the centrifugal pump, the lorry-mounted crane, the liquid adding tank and the liquid adding pump through a hydraulic multiway valve; the electrical control system is connected with the engine of the chassis, the hydraulic pump and the hydraulic multiway valve. The multifunctional blending and liquid supplying vehicle provided by the invention is low in cost, high in working efficiency, and can achieve various oil field operation functions.

The invention discloses a multifunctional specimen box, which comprises a test tube (1). A box cover (2) is arranged at an opening of the test tube (1), an insertion hole (21) and a fixed rotating shaft (4) are arranged at the box cover (2), the fixed rotating shaft (4) can freely rotate relatively to the box cover (2), a rotating interface (41) is arranged at the fixed rotating shaft (4), and a sampling spoon (5) is arranged below the fixed rotating shaft (4). When the multifunctional specimen box is used, a sampling operator opens the box cover, takes proper amount of specimen with a sampling spoon, seals the box cover, then fixes the multifunctional specimen box on a multifunctional specimen box rack, inserts a sampling needle from the insertion hole, threads the sampling needle through a filter screen to a buffer chamber, adds diluent into the multifunctional specimen box and connects the rotating interface to a rotating joint; the sampling spoon is rotated by the driving of the fixed rotating shaft, so as to achieve even stirring and blending for the multifunctional specimen box.

The present invention discloses a microwave photonic broadband radar imaging chip, and belongs to the integrated microwave photonic technology field. According to the present invention, by a photonicIntegration technology, the emission end and the reception end of a microwave photonic broadband imaging radar are integrated in the same chip, the chip is integrated with the following photonic assemblies of a semiconductor laser, a first 1*2 optical coupler, a Mach-Zehnder modulator, an optical attenuator, an optical phase shifter, a 2*1 optical coupler, a second 1*2 optical coupler, an emissionend photoelectric detector, a phase modulator and a reception end photoelectric detector, and the photonic assemblies are connected via the optical waveguides. The present invention also discloses amicrowave photonic broadband radar imaging system. According to the present invention, a high-frequency broadband linear frequency modulation emission signal of the broadband imaging radar can be generated in the optical domain, and an echo can be demodulated to an intermediate frequency or a base band by utilizing a microwave photonic frequency mixing technology, so that the real-time processingof the high-resolution target imaging can be realized. The microwave photonic broadband radar imaging chip and the microwave photonic broadband radar imaging system of the present invention have theadvantages of being small in size, high in integration degree, good in stability and low in cost, etc.

The invention relates to an active frequency mixer with a high linearity and a high gain and a method. The active frequency mixer comprises two transconductance amplifier circuits which access radio frequency differential voltage signals. The radio frequency differential voltage signals are subjected to transconductance amplifying conversion to be a first radio frequency current signal and a second radio frequency current signal. Two auxiliary transconductance amplifier tubes access the radio frequency differential voltage signals, and the radio frequency differential voltage signals are subjected to transconductance amplifying conversion to be a third radio frequency current signal and a fourth radio frequency current signal. The third radio frequency current signal and the fourth radio frequency current signal are subjected to current amplification through a first current mirror and a second current mirror and are superposed with the first radio frequency current signal and the second radio frequency current signal to form two superposed radio frequency current signals which are inputted to a switch level circuit. A load level circuit output direct current to the switch level circuit, the switch level circuit accesses an oscillator signal, the two superimposed radio frequency current signals are subjected to periodic reversing, and the frequency mixing is realized. According to the active frequency mixer, the contradiction between linearity and gain can be solved, and the linearity and the gain are improved at the same time.

The invention provides a port coal transshipment method, wherein the port is provided with a dumping machine room and a quay berth, wherein a silo cluster including a plurality of silos is arranged between the dumping machine room and the quay berth. The port coal transshipment method comprises: a silo entry process of coal: conveying coal in the dumping machine room into the silos of the silo cluster through a silo entry conveying system; and a process of taking out coal from the silos: conveying the coal in the silo cluster to a coal carrier at the quay berth through a take-out conveying system. The invention also provides a coal port for realizing the port coal transshipment method, wherein the coal port comprises a silo cluster (300) including a plurality of silos (301). The coal is stored in the silo cluster during coal transshipment so that closed storage and transportation of the port coal are realized and pollution on the surrounding of the port is avoided.

The invention provides a device and method for detecting COD of seawater. The device comprises a feeding unit, a digesting unit, a condensing unit, a titration unit and a color determination device, wherein the color determination device comprises an area source and a color sensor which are arranged on two sides of a titration tank of the titration unit; and light emitted from the area source is received by the color sensor through liquid in the container, the color sensor determines that blue is just faded when reading the color to be white, and titration is completed. The detection method comprises the steps of preparing a sample, digesting, condensing, tittering, and correcting blank. The device and method have the beneficial effects of high heat efficiency and high condensing speed, and can be used for correctly determining the color of seawater having relatively high turbidity by means of blank correcting.

The invention provides a reagent disk comprising a substrate, a first rotating shaft rotatablely arranged on the substrate, a reagent rack assembly used for placing a reagent bottle, and a driving element used for driving the first rotating shaft to rotate, wherein the reagent rack assembly comprises a connecting shaft connected with the first rotating shaft. According to the reagent disk provided by the invention, the driving element is used for providing motive power to drive the first rotating shaft and the reagent rack assembly to rotate so as to uniformly mix magnetic bead reagents while placing the reagents; since the uniformly mixed reagent is directly selected in the reagent bottle when needing to select the reagent to perform experimental analysis, the magnetic bead reagents liable to generate settlement are not specially mixed, thereby omitting the time of singly performing the uniform mixing operation, and further shortening the time sequence period of the whole system and improving the integral efficiency of a full-automatic instrument. Moreover, no object directly touches the reagent in the reagent bottle in a working process of the reagent disk, thereby reducing the cleaning liquid consumption and completely eliminating the cross contamination of different reagents.

The invention relates to a leather shoe production process manufacturing equipment, in particular to a leather shoe production process white latex preparation equipment. The technical problem to be solved by the present invention is to provide a kind of white latex preparation equipment for leather shoe manufacturing production process which can be prepared under airtight conditions and can be stirred and rotated in multiple directions. In order to solve the above-mentioned technical problems, the present invention provides such a white latex preparation equipment for leather shoes manufacturing production process, including a mixing box, etc.; A first through hole is opened in the middle of the top wall, a capping mechanism is arranged on the top of the mixing box, and a mixing mechanism is arranged in the middle of the mixing box. The present invention designs a kind of white latex preparation equipment for leather shoes manufacturing production process, which can realize the purpose of preparation in a closed space by being provided with a cover tight mechanism, and is also provided with a mixing mechanism.

The invention provides an optical system and a lamp employing the same. The optical system comprises a substrate, light sources, light guide bodies and lenses, wherein the light sources are mounted onthe substrate and comprise a plurality of sets of light-emitting arrays; each set of light-emitting array corresponds to one of the light guide bodies; each light guide body comprises an incident face, a light guide face and an output face; light emitted by the light-emitting arrays enters through the incident faces of the light guide bodies, and is subjected to dodging by the light guide faces,and then output from the output faces; and light getting out of the light guide bodies passes through the lens to form a light beam to be emitted out. The optical system further comprises a honeycombcover with a plurality of through holes, wherein the through holes sleeve lens heads of the lens; the cross sections of the through holes are matched with the maximum cross sections of the lens headsof the lens; and the overall arrangement shape of the through holes on the honeycomb cover is matched with that of of the light sources on the substrate. By adoption of the technical scheme, optical crosstalk is effectively prevented while the uniformity of light spots is guaranteed.

The invention provides a preparation method of a tin-cobalt alloy cathode material of a lithium ion battery, and relates to a cathode material of a lithium ion battery. The invention provides the preparation method of the tin-cobalt alloy cathode material of the lithium ion battery, which has the advantages of environment friendliness, low cost, large original capacity, good circulation property, easiness of large-scale production and the like. The preparation method comprises the following steps of: adding acid into de-ionized water, controlling a pH (Potential of Hydrogen) value to be equal to 0.5-2 and adding a tin source, a cobalt source, a surfactant and a stabilizer, so as to obtain a solution A; secondly, dissolving a precipitant in the de-ionized water, so as to obtain a solution B; adding the solution B into the solution A, stirring, then filtering and washing a reacted solution, so as to obtain a filter cake, diffusing the filter cake in an organic solvent, filtering the organic solvent and smashing the dried filter cake to obtain a precursor; doping the obtained precursor in a carbon source, uniformly mixing the precursor and the carbon source, then placing a mixture in a tube furnace, heating the mixture to a temperature of 700-1000 DEG C, keeping the temperature for 2-6h and then cooling to a room temperature, so as to obtain the tin-cobalt alloy cathode material of the lithium ion battery.

The invention belongs to the technical field of stirring devices, and particularly relates to an uniformly-mixing stirring device for medical technology development. The following schemes are put forward aiming at the problems of existing stirring devices, such as simple mixing mode, uneven mixing and no pre-mixing function. The device comprises two first upright poles and two second upright poles, wherein the top ends of the two first upright poles and the two second upright poles are welded with a same mounting plate, and an installation hole is arranged at the central position of the top outer wall of the mounting plate, the inner wall of the installation hole is welded with a stirring box, and the top outer wall of the stirring box is provided with round holes of equidistant circular distribution, the interior of the round holes is welded with a shunt pipe, the bottom of the shunt pipe is welded with a diffusion bucket, the inner wall of the diffusion bucket is welded with a shuntnet. The device provided by the invention has compact structure, and can mix various medicaments up and down, and has high mixing homogeneity for various medicaments and pre-mixing function, and speeds up the efficiency of drug mixing and improves the practicability of the device.

The invention discloses a cool-spreading and distiller's yeast-adding device, and a method and system for cool-spreading and stacking. The cool-spreading and distiller's yeast-adding device comprisesa sliding cool-spreading component arranged on a cool-spreading plate, and the sliding cool-spreading component can slide along the surface of the cool-spreading plate; a vertical blower, a kneading powder bucket and / or a wine hopper are arranged on the sliding cool-spreading component; the method for cool-spreading and stacking comprises the steps of aggregating and dispersing, cooling and distiller's yeast adding, collecting and stacking; the system for cool-spreading and stacking comprises a cool-spreading and distiller's yeast-adding device and a conveying system, and the discharge end ofthe cool-spreading and distiller's yeast adding device is connected to the conveying device; the cool-spreading and distiller's yeast-adding device comprises the sliding cool-spreading component arranged on the cool-spreading plate, and the sliding cool-spreading component can slide along the surface of the cool-spreading plate; and the vertical blower, the kneading powder bucket and / or the wine hopper are arranged on the sliding cool-spreading component. The invention has the advantages that the original traditional technology is changed to combine the entire process and procedures of cool-spreading and stacking during the brewing with automatic production to carry out transformation and upgrade, so as to realize the aggregating and dispersing of distilled grains, automatic cloth alternation, automatic cooling control of a micro fan, automatic mixing with distiller's yeast, and automatic collection to conveying and stacking, which greatly improves the degree of automation, and can greatly reduce labor intensity, improve production efficiency, and improve the stability of brewing quality.

The invention provides a device for mixing, uniform-stirring and air-drying of a feed, and belongs to the technical field of feed processing. The device comprises a box body, a blower, a base plate and a storage box; a cam is arranged at the upper right part in the box body; a center shaft is arranged at the middle of the cam, and a push plate is arranged at the left side of the cam; the left sideof the push plate is fixedly connected with a push rod; and the push rod traverses through a spacing plate, and a position, below the left side of the spacing plate, of the push rod is fixedly connected with a first connecting rod. A rack is driven by the rotation of the cam to move to the left and right back and forth, and the rack drives a tooth bar to rotate to make a stirring shaft drive stirring blades to rotate in order to realize uniform stirring of the feed; the uniform-stirring box body moves to the left and right under the action of the rack and a second reset spring to achieve omnibearing uniform stirring of the feed in the uniform-stirring box body; the bottom of the uniform-stirring box body is provided with an air inlet tube in order to carry out air-drying treatment on thefeed; and a sucking pump can suck out the uniformly-stirred and air-dried feed from the device.

The invention discloses a chemical feeding device based on improving mixing uniformity of chemical. The chemical feeding device based on improving the mixing uniformity of the chemical comprises a fixing frame. A can body is arranged on the fixing frame and at least two material feeding ports are arranged at the top of the can body. The export end of each material feeding port is arranged opposite to the export of another material feeding port. A material discharging pipe is arranged at the bottom of the can body and a valve is arranged on the material discharging pipe. A spiral plate is arranged in the can body and the inflection points of the spiral plate contact with the inner wall of the can body. Through-holes are formed in the lower end of each layer of the spiral plate. According to the device, a spiral plate which is capable of mixing liquid step-by-step is arranged in the can body, so that the liquid can be mixed uniformly after passes through the spiral plate and the chemical can be mixed directly in the can body without an extra uniform mixing device. Furthermore, the spiral plate can mix the liquid uniformly by the gravity of the liquid without extra power, so that the device can not only mix the chemical uniform in the can body but also need no extra energy consumption.

The invention discloses an automatic sample pretreatment system which comprises a mounting frame, and a horizontal conveying mechanism, a clamping mechanism, a safety protection mechanism, a vertical lifting mechanism, a weighing and filling mechanism, a sample frame transmission device, a mixing device, an automatic cover opening and closing transfer mechanism and a bar code scanner are arranged on the mounting frame. According to the invention, the whole-support or single-support automatic sample injection of a sample can be realized, and the sample can be added at any time in the sample injection process, so that the operation flexibility of medical personnel is improved; transferring, weighing, filling, uniform mixing and sample adding of samples can be achieved, and the pretreatment efficiency and consistency are improved; in the filling process, standardized addition can be performed according to a weighing result, so that errors caused by manual sample size evaluation are effectively solved, and the sample digestion effect is improved; and by adopting the uniform mixing device capable of improving the homogenization treatment effect of the non-liquid sample, the uniform mixing effect is enhanced.

The invention discloses a small full-automatic chemiluminescence immunoassay instrument and a use method. The small full-automatic chemiluminescence immunoassay instrument comprises the following components: a bottom top board (26), wherein a power supply (9) is fixed on the bottom top board (26); the power supply (9) is connected with a main control board (8); the main control board (8) is connected with a detection module (10) and an incubation module (11), the incubation module (11) is connected to the bottom top board (26), the incubation module (11) is connected with a suction head frame(12), a rack top board (27) is arranged on the main control board (8), and the rack top board (27) is connected with a sample adding module (13). The small full-automatic chemiluminescence immunoassayinstrument is used for the chemiluminiscence immunoassay analyzer.

The invention discloses a reverse-flow full-automatic battery grouping method and a reverse-flow full-automatic battery grouping system based on dynamic optimization. The battery grouping system comprises a battery performance detection device, a conveying device, and a main control computer. In the conveying device, an input conveyor belt and one side of an annular conveyor belt are parallel to and connected with each other, the annular conveyor belt and an output conveyor belt are perpendicular to and connected with each other, and the output conveyor belt and an outlet conveyor belt are perpendicular to and connected with each other. A baffle, a push-in cylinder and a photoelectric door are arranged at the tail end of the input conveyor belt. A push-out cylinder and a photoelectric door are arranged at the joint of the annular conveyor belt and the output conveyor belt, and a sensor is arranged beside the push-out cylinder. The distance between the push-out cylinder and the push-in cylinder is equal to the spacing between two adjacent batteries on the annular conveyor belt. The battery grouping method comprises the steps of battery input and grouping optimization calculation, battery pushing-out, and battery grouping output. By adopting the battery grouping method and the battery grouping system, real-time grouping optimization selection can be carried out according to the current state, and the quality and success rate of grouping are improved.

The invention provides an in-vehicle active noise reduction system which comprises a rotation speed sensor, an active noise reduction controller, a mixer, a power amplifier, an error microphone, a vehicle-mounted speaker, a vehicle-mounted audio processing module, a car CAN interface, a ceiling wiring and a carpet wiring. The rotation speed sensor is connected with the car CAN interface and is connected with the active noise reduction controller through the carpet wiring. The error microphone is arranged on the ceiling and is connected with the active noise reduction controller through the ceiling wiring. The active noise reduction controller is arranged in a vehicle trunk. The active noise reduction controller outputs four active noise reduction acoustic signals. The signals are first output to the mixer, and then are output to the front left interface, the front right interface, the rear left interface, the rear right interface and the ground wire interface of the vehicle-mounted power amplifier through the mixer. The output of the active noise reduction controller is connected with the mixer through the carpet wiring. According to the invention, the transformation of the original vehicle is minimized; the hardware connection and arrangement of the active noise reduction system are simple; and the system is convenient to implement.

The invention provides a gear driving type roller device and biochemical treatment equipment, system and method. The biochemical treatment system is provided with the biochemical treatment equipment and control equipment. The biochemical treatment equipment is provided with a support device and the gear driving type roller device arranged on the support device. The gear driving type roller device is provided with a roller body and a gear driving mechanism, a strain and a matrix are accommodated in the roller body, a continuous blade used for scattering and cutting organic garbage is mounted in the roller body, and the roller body is provided with two symmetrical side wall parts; the gear driving mechanism is arranged on one side of the other side wall and is provided with a gear speed reducing motor, a motor output shaft of which one end is mounted on the gear speed reducing motor, a driving gear connected with the other end of the motor output shaft, a driven gear in engagement connection with the driving gear and a rotating shaft; and one end of the rotating shaft is connected with the driven gear, and the other end of the rotating shaft is connected with the other side wall part of the roller body.

The invention discloses a microorganism metallurgical reactor suitable for an extremely cold environment, and solves the technical problems of prevention a biological oxidation process from being influenced by a weather condition and guarantee of stable production operation under the condition of 30-50 DEG C outdoor temperature in winter. As a heat exchanger, an insulation layer and a sealing cover are added based on a traditional microorganism metallurgical reactor, through a heating effect of the heat exchanger and an insulation effect of the insulation layer and the sealing cover, the guarantee of actuation of the biological oxidation process in the extremely cold environment in winter is realized, and the production work can be stably actuated without being influenced by the seasonal weather condition. The heat exchanger adopts a coil pipe type heat exchanger; and the coil pipe type heat exchanger can achieve the effect of a turbulent plate in the device to realize uniform mixing of pulp, so that the production work is actuated more stably.

The invention discloses a nutrient solution automatic spraying type seedling raising device, which includes a placement block, a cavity is opened inside the placement block, a first motor is fixedly connected to the inner bottom wall of the cavity, and a first motor is fixedly connected to the inner top wall of the cavity. There is a sealed bearing, the output end of the first motor runs through the sealed bearing and extends to the outside of the placement block, the output end of the first motor is fixedly connected with a seedling raising plate, and the upper surface of the seedling raising plate is provided with equidistantly arranged seedling raising grooves, and the placement block The upper surface is fixedly connected with a frame, the inner top wall of the frame is fixedly connected with a spray pipe, the outer surface of the spray pipe is fixedly connected with spray heads arranged equidistantly, the upper surface of the frame is fixedly connected with a mixing chamber, and the mixing chamber A material inlet is opened on the upper surface, and a second motor is fixedly connected to the upper surface of the mixing bin. The nutrient solution automatic spraying type seedling raising device has strong overall stability, can realize automatic spraying of nutrient solution, and sprays evenly, and can meet the needs of users.

The invention relates to the field of oil and gas field acid fracturing construction devices, and discloses an acid mixing tank and a buffer tank; the acid mixing tank comprises a tank body, a cylindrical partition plate is fixedly connected in the tank body, and the tank body is divided into a first stirring cavity and a second stirring cavity by the partition plate; and a first stirring rod and a second stirring rod which respectively extend into the first stirring cavity and the second stirring cavity are rotationally connected in the tank body. The device has the following advantages and effects that the first stirring cavity and the second stirring cavity are formed in the tank body, and acid fracturing fluid is mixed, stirred and conveyed in turn through the two stirring cavities, so that the mixing continuity of the acid fracturing fluid is improved, the use amount of an acid storage tank is reduced, and the load of a mixing vehicle is reduced; and by using the mixed pickling system, the automatic control of mixing and stirring of the acid fracturing fluid is realized.

The invention relates to equipment for filling a tray with a substrate for tobacco floating seedling raising. The equipment comprises a substrate box, a pressing connection device, a charging shovel and a blocking device, wherein the substrate box comprises an upper box body and a lower box body which are both provided with a top opening and a bottom opening and vertically assembled; the blockingdevice comprises gauze used for blocking the bottom opening of the lower box body, the two ends of the gauze are wound around a driving roller and a driven roller respectively, a tensioning roller isparallel to the driving roller and is used for tensioning the gauze and making the gauze fit the bottom face of the lower box body, the charging shovel comprises a frame body provided with a top opening and a bottom opening, and the top and bottom of the inner side wall of the frame body in the length direction slidably cooperate with an upper material plate and a lower material plate; the pressing connection device comprises a base plate and multiple square frames fixedly arranged on the bottom of the base plate, the tops of the square frames are provided with stirring rods, and the stirringrods are connected with an external stirring driving mechanism. The equipment has the advantages that the structure is simple, blending of turf, vermiculite and perlite can be effectively achieved, and seedling holes of the seedling raising tray are filled with the substrate uniformly as soon as possible, so that matching of the substrate components in each seedling hole is reasonable, and the survival rate and activity of the tobacco seedling are improved.

The invention discloses a bubble evenly mixing apparatus, which comprises a reaction tank, a first electromagnetic valve, an air source, a firs connection device, a waste liquid collection device, anda controller. The reaction tank is communicated with the common port of the first electromagnetic valve through the first connection device. The air source is communicated with the normally open endof the first electromagnetic valve. The waste liquid collection device is communicated with the normally closed end of the first electromagnetic valve. The first electromagnetic valve, the air source,and the waste liquid collection device are all connected to the controller. The air source supplies air to the reaction tank to form bubbles. The bubbles rise in the reaction tank, thus reagents in the reaction tank are evenly stirred; moreover, by switching, opening, or closing the first electromagnetic valve, the bubble mixing function and waste liquid collection function are switched; throughsimple operation, reagents are evenly mixed, waste liquid is collected; the structure is simple, the cost is low, and the mixing speed and waste liquid collection speed are quick.

The invention relates to an agent-feeding device improvement structure which at least comprises two fixing posts. A fixing plate is arranged on the fixing posts. A round through hole is formed in the middle of the fixing plate. A tank body penetrates through the round through hole and is fixed to the fixing plate. The top of the tank body is provided with at least two feeding inlets. The outlet ends of the feeding inlets are arranged oppositely. A discharging pipe is arranged at the bottom of the tank body and provided with a valve. A roller wheel is arranged at the bottom of each fixing post. A supporting plate is hinged to the lateral wall of each fixing post. A spiral plate is arranged in the tank body. Inflection points of the spiral plate make contact with the inner wall surface of the tank body. The lower end of each layer of the spiral plate is provided with though holes. The problems that operation is inconvenient in an existing agent adding mode and an extra blending device needs to be added to an existing agent-feeding device are solved through the agent-feeding device improvement structure.

The invention discloses a magnetic bead mixed liquid split charging device and method for nucleic acid substance extraction. The device comprises a shell, a stirring device is arranged in the shell, the stirring device comprises a stirring part for stirring, the stirring part is arranged at the middle lower part of an inner cavity of the shell, the stirring part is arranged in the shell, the upper end of the stirring part is fixedly connected with the lower end of a suction pipe of a tubular structure, the upper end of the suction pipe is communicated with a negative pressure device through a conveying pipe, a rotating device used for providing rotating force power is arranged on the suction pipe, the negative pressure device and the rotating device are arranged outside the shell, the rotating device drives the stirring part to rotate through the suction pipe, and the suction pipe is used for discharging the magnetic bead mixed liquid in the shell. By means of the split charging device and the split charging method, automatic even mixing and automatic split charging of the magnetic bead mixed liquid can be achieved, the adsorption performance of the magnetic beads can be guaranteed under the low-temperature condition, time and labor are saved, operation is standard, cost is low, and the device and the method are particularly suitable for industrial production.

The invention relates to the field of laser cutting machines, in particular to a laser cutting machine air filter unit. The invention aims at achieving the technical purpose of providing the laser cutting machine air filter unit capable of discharging smoke dust and reducing environmental pollution effectively. To achieve the technical purpose, the invention provides the laser cutting machine air filter unit. The laser cutting machine air filter unit comprises an L-shaped base, universal wheels, a purifying mechanism, an outlet pipe, a spraying device, a putting case and the like; the bottom of the L-shaped base is connected to the universal wheels symmetrically, the top of the L-shaped base is connected to the purifying mechanism, the upper portion of the right side inside the L-shaped base is connected to the putting case, the top of the putting case is connected to an aspiration channel, and the middle part and the upper portion of the left side inside the putting case are both connected to a first strainer. According to the laser cutting machine air filter unit, the aspiration channel and an air outlet of the laser cutting machine are firstly connected, and when the laser cutting machine works, the massive smoke dust generated on an operation table of the laser cutting machine is sucked into the putting case.

The invention provides a blood blending device. The device can comprise a grabbing assembly, a rotating assembly and a transmission assembly, the grabbing assembly can be used for grabbing test tubescontaining blood and the like, the rotating assembly can drive the grabbing assembly to rotate, the transmission assembly can drive the rotating assembly and the grabbing assembly to move so as to shake the test tubes, and finally the effect of evenly mixing the blood is achieved.

The invention discloses a bottom flow shearing and thickening device and method for a thickener. A sucking pipe is communicated with one side of the bottom of a thickener cone, a feeding pipe is arranged in the middle of the thickener cone in the mode of surrounding the cone by a round, after surrounding the cone by one round, the feeding pipe is connected with the sucking pipe through a circulating pump, and multiple symmetrical spraying branches with valves are arranged on the feeding pipe and enter in the mode of being perpendicular to the side wall of the cone. The sucking pipe is sequentially provided with a main valve, a blowdown valve, a sucking pipe decontaminating backwash water valve, a decontaminating backwash water inlet and a feeding pipe decontaminating backwash water valve, and a main valve is arranged on the feeding pipe. An ore pulp self-circulation mode is adopted to evenly mix ore pulp at the bottom of the thickener so as to stably discharge bottom flow; floc structures are destroyed by means of shearing force in the ore pulp circulation process, water contained in the floc structures is released, the concentration efficiency is improved, and the purpose of increasing pulp concentration is achieved finally.

The invention discloses a chemical polishing agent and a metallographic structure display method of a titanium alloy. The chemical polishing agent is composed of H<2>O<2> and SiO<2> suspension in a volume ratio of (20-30): (70-80), the particle size and content of SiO<2> in the SiO<2> suspension are respectively 40-80 nm and lager than or equal to 30 wt%; and the metallographic structure display method of the titanium alloy comprises the following steps of preparing a titanium alloy sample, mechanically grinding the titanium alloy sample, mechanically polishing the titanium alloy sample by using the chemical polishing agent, and finally corroding the titanium alloy sample by using a metallographic corrosive. According to the chemical polishing agent and the metallographic structure displaymethod of the titanium alloy, the chemical polishing agent is used in cooperation with high polymer material synthetic leather polishing cloth, the mixing effect of mechanical polishing and chemicalpolishing can be achieved, an ideal titanium alloy metallographic specimen can be prepared, after corrosion, the metallographic structure is quite clear and free of interference phase, and observationof the titanium alloy metallographic structure is quite facilitated; and the problems that deformation twin crystals can be generated in an alpha phase and false phases are likely to occur through pure mechanical polishing are solved.