971 results about "Metering pump" patented technology

The invention discloses an intelligent detection and dynamic supplement regulation and control system for electroplating bath solution components, and belongs to the technical field of electroplating. The system comprises an electroplating bath body, a detection module, a data processing and control module and a regulation and control module. The detection module is used for detecting the metal ion concentration, the pH value, the temperature and the additive concentration of the bath solution on line in real time through a spectrum sensor, an electrochemical sensor and a physical parameter sensor; the data processing and control module adopts a PID and machine learning fused intelligent regulation and control model, predicts the component change trend according to the detection data and the process parameters, and generates a dynamic regulation and control instruction; the regulation and control module quantitatively supplements target components through a high-precision metering pump, and the closed-loop feedback correction module is combined to ensure that the components of the bath solution are stabilized within a preset threshold range. Multi-parameter synchronous detection and accurate regulation and control are achieved, the quality stability of the plating layer is improved, raw material consumption and labor cost are reduced, and the method can be widely applied to industrial scenes such as metal surface treatment.

The application discloses a kind of micro flow high pressure hydraulic diaphragm metering pump, including pump head and pump body, diaphragm piece is equipped between the pump head and pump body, pump head, including pump head body, feed valve and discharge valve;Pump body, including pump body and plunger assembly, plunger assembly is driven to diaphragm piece by reciprocating motion, plunger assembly includes cylinder sleeve, cylinder sleeve inside is equipped with plunger cavity, plunger cavity is equipped with plunger in cooperation, at least one oil supplement cavity is equipped in plunger cavity, plunger and cylinder sleeve are also equipped with combined sealing mechanism between it.The application is optimized plunger assembly, utilizes long axis plunger, forms small capacity hydraulic oil cavity, with the rapid reciprocating motion of plunger, can realize the high frequency small scale reciprocating operation of diaphragm piece, is suitable for the transmission of small size gauge medium flow passage in pump head, realizes micro high pressure output.

The utility model relates to the technical field of filling machines, and particularly discloses a quantitative blanking device for filling, which comprises a case, a quantitative component arranged on the case and used for quantitative blanking, and a positioning component arranged on the case and used for positioning a filled bottle body, the quantifying assembly comprises a quantifying cylinder fixedly installed on the machine box, a metering pump fixedly connected to the quantifying cylinder and a liquid storage box fixedly installed at the liquid inlet end of the metering pump. According to the quantitative blanking device for filling, when liquid is quantitatively filled into a filling bottle by a filling machine, the filled bottle body is automatically clamped and positioned through the positioning assembly, so that the stability of the filling bottle in the filling process is improved, and when the bottle body is clamped, the quantitative blanking device is arranged through the discharging assembly at the lower end of the quantitative cylinder, so that the quantitative blanking effect is improved. And after filling, the blocking piece automatically moves downwards to block the discharging opening in the bottom of the quantitative cylinder, and the filling liquid can be conveniently added into the quantitative cylinder in the follow-up process.

The utility model belongs to the technical field of agricultural unmanned aerial vehicles, and particularly relates to a bionic agricultural pesticide spraying aircraft. Comprising a fuselage and n supporting legs evenly distributed around the fuselage, n is an even number larger than or equal to 4, and each supporting leg is provided with a set of propellers driven by a motor; a plurality of independent pesticide bins are arranged in the machine body, an outlet of each pesticide bin is connected with a mixing box in the machine body through a water path, a metering pump is connected into the water path, a stirring device is arranged in the mixing box, a plurality of nozzles are evenly distributed on the periphery of the machine body, an outlet pipeline of the mixing box is divided into branches with the same number as the nozzles, and the branches are connected with the nozzles in a one-to-one mode. A booster pump is mounted on the branch; depth cameras are distributed outside the fuselage and used for acquiring environment images, and the aircraft controls a flight path according to the environment images; the unmanned aerial vehicle adopts a partitioned pesticide bin and octopus bionic eight-rotor design, and has high pesticide mixing capacity and stable flight control performance.

The invention discloses an intelligent preparation system and process for a composite antibacterial material with synergistic interaction of nanoparticles, and relates to the field of preparation of composite antibacterial materials. The raw material pretreatment module integrates a nano particle purification unit, a base material modification unit and an antibacterial agent dispersion unit, so that the purity and the dispersity are improved; the intelligent proportioning and mixing module consists of a five-channel metering pump, a dynamic mixer and a concentration monitoring device and is used for accurately controlling the component proportion; the reaction synthesis module comprises a constant-temperature reaction kettle, a pressure control system and an inert gas protection unit, and stable reaction is guaranteed; the performance online detection module is used for testing the antibacterial property, the mechanical property and the microstructure; the intelligent regulation and control module optimizes process parameters through an algorithm; the product post-processing module comprises a filtering unit, a drying unit and a sterile packaging unit to ensure the product quality. The antibacterial performance and stability are improved, the antibacterial aging is prolonged, energy consumption is reduced, efficient, green and intelligent preparation of the composite antibacterial material is achieved, and industrial technology upgrading is promoted.

The invention provides a filter stick perfuming device and a perfuming mode. The perfuming device is composed of a heating and heat preservation box, a metering pump, a heat preservation pipe and a perfuming module. The perfuming device can be used for heating and uniformly mixing flavors and fragrances, keeping the flavors and fragrances in a liquid state and certain viscosity, and outputting the flavors and fragrances outwards through micropores in the upper part and the lower part of the perfuming module; when the tows pass through the upper surface and the lower surface of the heating module in a clinging manner, the flavors and fragrances output from the micropores are taken away; blowing the tows to be disordered by compressed air through a high-pressure tow feeder, further uniformly dispersing the flavors and fragrances on the surfaces of the tows, and feeding the tows into a forming smoke gun; and wrapping the tows with forming paper, and slitting to obtain the perfumed filter stick. The perfuming device and the perfuming method can be used for adding flavors and fragrances to the surfaces of tows, and are particularly suitable for adding gel flavors and fragrances and adding flavors and fragrances when hollow pipe filter sticks are produced. A new solution is provided for development of perfumed tobacco products.

A technical solution for monitoring operation of a medical delivery device such as a wearable patch pump for occlusion is provided that employs sensing pump motor current during at least one of a dispense stroke and an aspirate in a pump cycle. The solution can be implemented alone or in combination with other occlusion sensing methods that use one or more of pump measurement data such as pump stroke duration (e.g., duration of aspirate stroke or dispense stroke in a rotational metering-type pump or a reciprocating-type pump), end-stop or limit switch activation, and duration difference between aspirate and dispense strokes to detect occlusion. Accuracy of occlusion detection based on measured data in a fluid delivery device is improved by using dead band normalization of loaded measured data to unloaded measured data.

A preparation method of the outdoor high-strength polyester fiber with the radiation refrigeration function comprises the following steps that titanium dioxide, silicon dioxide, silicon carbide and zirconium phosphate are blended and ground in proportion and then dispersed in an acetone solution, a dispersing agent is added, and nano-particle dispersion liquid is formed through ultrasonic treatment; mixing the nano-particle dispersion liquid with the polyester chips; feeding the mixed composite material into a screw extruder for melt blending to form a spinning solution; after being accurately metered by a metering pump, the spinning solution is extruded by a spinneret plate to form fiber tows, and the spinneret plate is provided with a slow cooling and heating device; and performing post-treatment on the fiber tows to obtain the high-strength polyester fibers. According to the invention, a specific combination of titanium dioxide, silicon dioxide, silicon carbide and zirconium phosphate is selected, and a specific slow cooling technology and high-power stretching shaping are matched, so that the fiber has excellent radiation refrigeration performance and mechanical strength, and can be widely applied to the fields of outdoor clothing, awning cloth, car clothing and the like.

The invention provides a method and a system for accurately controlling liquid flow in a radioactive separation device, and relates to the technical field of liquid flow control, the method comprises the following steps: acquiring instantaneous flow data of a column inlet, pressure data of an infusion pipeline and rotating speed data of a metering pump, and carrying out sliding time window processing to obtain an average flow value and a flow change slope; calculating an equivalent flow resistance coefficient in combination with a pressure change relation and theoretical conveying capacity of a metering pump, and determining liquid flow transmission delay time according to pipeline volume parameters, so as to predict column inlet flow corresponding to the delay time; and the rotating speed of the metering pump is adjusted according to the deviation between the predicted flow and the target flow, the effective buffering volume of the buffering flow stabilizing cavity is adjusted to restrain flow pulsation, meanwhile, control parameters are continuously corrected through rolling updating data, and the column inlet flow is kept within the preset target flow range.

The utility model discloses an ultraviolet light curing lining hose vacuum glue pouring device which comprises a bottom plate, the right side of the top of the bottom plate is fixedly connected with a glue box, the left side of the glue box is fixedly connected with a positioning plate, the left side of the positioning plate is fixedly connected with a concave frame, the top of an inner cavity of the concave frame is fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the bottom plate. According to the glue filling device, the concave frame, the supporting plate, the electric air cylinder and the arc-shaped clamping plate are arranged, the ultraviolet curing lining hose can be clamped and sealed, glue filling can be carried out on the ultraviolet curing lining hose through the sliding barrel, the sliding rod, the guide pipe, the metering pump, the liquid discharging hose, the liquid pumping pipe, the vacuum pump and the air pumping pipe, and meanwhile the vacuum pump and the air pumping pipe are arranged, so that the glue filling efficiency is improved. By means of the structure, the vacuum glue filling equipment has the advantage that vacuum glue filling is convenient when the vacuum glue filling equipment is used, so that the use requirements of customers cannot be met, and the influence on the product quality is avoided.

The invention belongs to the technical field of sodium hypochlorite production, and particularly relates to a method for producing sodium hypochlorite. A method for producing sodium hypochlorite comprises the following steps: adding a compound additive into a sodium hydroxide aqueous solution, and uniformly stirring to obtain a compound alkali-containing raw material solution; respectively introducing the composite alkali-containing raw material solution and chlorine into the micro-channel reactor through a metering pump, and controlling reaction conditions to generate a reaction solution containing sodium hypochlorite; introducing the reaction liquid into a ceramic membrane separation device, separating and removing unreacted solid impurities and by-product salts, and collecting permeate; unreacted sodium hydroxide is recycled and reused; and detecting the permeate liquid to be qualified to obtain a sodium hypochlorite finished product. According to the invention, four key links of compound additive addition, microchannel reaction, ceramic membrane separation and resin recovery are organically linked to form a systematic solution. Aiming at the core pain points of insufficient reaction, more byproducts, raw material waste, equipment corrosion and the like in the traditional process, the product purity is improved through the synergistic effect of all links.

The invention provides a method and a system for autonomously and intelligently adjusting the pH value of a desulfurization device of a thermal power plant. The method comprises the following steps: collecting inlet flue gas parameters, pH values of multiple points in an absorption tower and slurry physical property parameters in real time; transmitting the data to a control system, and dynamically predicting the optimal pH value range required by the current working condition by using a built-in desulfurization reaction model; comparing the actual pH value with a prediction range, generating a desulfurizing agent adding basic instruction, and performing dynamic correction by combining the liquid level and density of the slurry to obtain a final instruction; a high-precision metering pump and a regulating valve are controlled to execute precise adding; meanwhile, the model is self-optimized according to performance index feedback such as desulfurization efficiency and outlet SO2 concentration. Through combination of multi-parameter perception, model prediction feedforward and physical property parameter dynamic correction, the pH value is converted from passive and lagged adjustment to active and accurate intelligent adjustment, the desulfurization efficiency and the system stability are effectively improved, the operation cost is reduced, and environment-friendly up-to-standard emission is ensured.

The invention relates to the technical field of polyester slub yarns, and discloses a preparation method and device of a gradually-changed section shrinkage polyester slub yarn, and the device comprises a metering pump, a spinneret plate, an oiling device, a first hot roller, a second hot roller, a winding device, a hot roller motor, a programmable controller and a motor frequency converter; the metering pump is installed on the upper portion of the spinneret plate, the spinneret plate, the oiling device, the first hot roller, the second hot roller and the winding device are sequentially arranged along a filament conveying path, the first hot roller and the second hot roller are driven by a hot roller motor to rotate, the first hot roller is provided with a heating module used for adjusting the temperature, and the second hot roller is provided with a heating module used for adjusting the temperature. A hot roller motor of one hot roller is electrically connected with the motor frequency converter; and the motor frequency converter is in signal connection with the programmable controller. The method and the device for preparing the gradually-changed section-shrunk polyester slub yarn have the advantages that the production continuity and stability can be ensured through variable temperature and variable speed of the first hot roller and constant speed of the second hot roller and the winding head, and the like.

The present application relates to the field of high polymer material, and particularly relates to a preparation method of ultra-high molecular weight polyethylene film, which has the following steps: after ultra-high molecular weight polyethylene resin and solvent are configured into a uniform suspension, the suspension is sent into a double screw extruder to obtain a high temperature melt, the melt is passed through a metering pump and a slit die, and is cooled and shaped by a polished cold roller to obtain a gel film, then the solvent in the film is removed by extraction, the film after extraction is dried by hot air, and finally the film is synchronously or stepwise bidirectionally hot stretched to obtain the ultra-high molecular weight polyethylene film. The present application adopts a new wet process route of dissolving folded chain lamellae and retaining straight chain lamellae in the preparation process of the ultra-high molecular weight polyethylene solution, and makes the straight chain crystals be kept in the preparation process of the ultra-high molecular weight polyethylene film, so that the resin content in the solution in the preparation of the ultra-high molecular weight polyethylene film is greatly improved, and the production efficiency is greatly improved.

The present application relates to the technical fields of iodine removal of crude salt, and discloses a high-efficiency and energy-saving iodine removal device for crude salt, which comprises a salt dissolving pool assembly, a reagent tank assembly, a reaction tank assembly, a combustion tank assembly and an adsorption tower assembly, mainly solves the problems of low iodine removal efficiency and high energy consumption in the prior art, by injecting fresh brine into the salt dissolving pool, driving the ultrapure water metering pump to dilute, opening the stirring motor to disturb and pre-oxidize the brine, driving the hydrochloric acid metering pump to adjust the pH of the brine, driving the water inlet pump to inject the brine into the reaction tank, adding hydrogen peroxide by the hydrogen peroxide metering pump, opening the ultrasonic vibrator and the aeration ring, and through the synergistic effect of cavitation and micro-bubble aeration, the oxidation reaction is strengthened, the oxygen generated by the reaction is transported to the combustion chamber to mix and burn with hydrogen, the heat energy generated by the combustion is converted into electricity by the thermoelectric generator to supply power to the ultrasonic vibrator, the ultrapure water in the cold liquid cavity absorbs the waste heat to warm up and preheat the salt dissolving, and after the oxidation reaction is completed, the brine is collected into the adsorption tower assembly for adsorption, so that the content of iodine in the crude salt is efficiently removed.

The present application relates to the technical field of shallow and thin layer heavy oil exploitation, and particularly relates to a device and method for developing shallow and thin layer super heavy oil by using aerosol. The technical scheme is as follows: the atomization reactor is installed on the base through the atomization reactor support and is connected with the nitrogen gas pump truck through the nitrogen gas inlet; the other end of the atomization reactor is connected with the flow disturber, and the upper side of the atomization reactor is provided with a plurality of high-pressure atomization nozzles; the medicine injection metering pump is connected with the bottom of the medicine storage tank through the medicine low-pressure pipeline filter, the high-pressure pipeline of the medicine injection metering pump is connected with the high-pressure medicine bag type storage tank through the pressure maintaining overflow valve, and then is connected with the high-pressure atomization nozzles on the upper side of the atomization reactor through the gas-liquid separator. The present application improves the seepage field, reconstructs the pressure field by using nitrogen gas, and supplements the temperature field by using steam, and is a three-stage slug type process method, which can effectively exploit the shallow and thin layer super heavy oil reservoir, synergistically reduces the steam consumption with the steam huff and puff, and reduces the carbon emission by 20%-30%.

The utility model relates to agricultural implement technical field and disclose agricultural land dosing device, including medicine jar, the upper end fixed mounting of medicine jar has the jar cover, the upper end fixed mounting of jar cover has the metering pump, the big upper surface fixed connection of metering pump has the medicine outlet pipe, the lower surface fixed connection of metering pump has the medicine inlet pipe, the lower end fixed mounting of medicine inlet pipe has the filter core, the utility model is provided with automatic dosing device, automatic water device, automatic stirring device, when the medicine liquid in medicine jar is consumed, the float ball pulls apart the medicine box bottom filled with medicine on one hand, makes the medicine enter the medicine jar, presses the switch on one hand, and circuit forms the closed circuit, and solenoid valve opens, and the water flow enters the medicine jar through the water inlet pipe, and the water flow falls vertically and impacts the stirring paddle, and the medicine in the medicine jar is stirred and mixed, can supplement the medicine liquid in time, also can greatly reduce the operation pressure of farmer.

The utility model relates to the technical field of coating mechanisms, in particular to a supply coating mechanism of a nanofiber electrostatic spinning machine, which comprises a plurality of metering pumps, a plurality of liquid inlet pipes and an adjusting rotating mechanism, and the adjusting rotating mechanism comprises a rotating column, a rotating frame, a driving assembly, a plurality of coating blocks, a plurality of coating pipes, a plurality of dismounting assemblies and an auxiliary assembly. The rotating column and the driving assembly are installed in the electrostatic spinning machine, the number of the coating blocks is selected according to needs, the rotating frame is inserted, the multiple electrostatic spinning pieces are embedded into the multiple coating grooves respectively, the driving assembly is fixed and started through the multiple disassembling and assembling assemblies respectively, and under cooperation of the auxiliary assembly, the rotating frame rotates with the rotating column as a rotating shaft; the multiple coating blocks are driven to rotate, the multiple metering pumps are started, and polymer solutions are injected into the multiple coating grooves through the multiple liquid inlet pipes and the multiple coating pipes correspondingly, so that supply coating is conducted on multiple pieces of electrostatic spinning, and the effect of improving the adaptability of the mechanism is achieved.

The invention discloses a multi-mold simultaneous injection RTM (Resin Transfer Molding) glue injection device and method, and aims to solve the problems of low productivity and poor metering precision of an existing RTM glue injection machine. The multi-mold simultaneous injection RTM glue injection device comprises a feeding unit, a multi-mold shunting unit, a cleaning unit, a full-process monitoring unit and a cross validation module, wherein the feeding unit comprises a stirring tank with a weighing sensor, a feeding barrel and a vacuum defoaming assembly; the multimode shunting unit is provided with N branch glue injection loops, and branch pressure is independently adjusted through a gear metering pump; the cleaning unit comprises a liquid pump and a spraying head; the whole-process monitoring unit covers the whole stage of glue injection and comprises weighing calibration before glue injection, flow monitoring during glue injection and weighing of a residual glue collecting tank after glue injection; the cross validation module adopts an upper computer to be matched with an adaptive weighting algorithm, and linkage adjustment and alarm are performed when the deviation exceeds 3%. Multi-mode synchronous glue injection is achieved, the glue injection amount error is smaller than or equal to + / -2%, and whole-process data tracing is supported.

The invention relates to the technical field of shoe sole preparation, in particular to a movable multi-station shoe sole injection molding system and method.The movable multi-station shoe sole injection molding system comprises a raw material supply unit, a movable injection molding unit, a plurality of shoe sole molding units and a central control unit; an outlet of the proportional metering pump is connected with the multi-channel dynamic mixer; the raw material storage tanks are used for storing injection molding raw materials with different colors or materials; the proportional metering pump is used for extracting raw materials according to a preset proportion; the multi-channel dynamic mixer is used for uniformly mixing and outputting various raw materials; the movable injection molding unit comprises a ground rail, a mechanical arm body movably arranged on the ground rail, an injection molding device arranged on the mechanical arm body and a material taking gripper. By integrating a mobile robot technology, a dynamic mixing technology, visual identification and central intelligent control, an efficient, flexible and intelligent shoe sole injection molding production platform is constructed.

The invention relates to the technical field of sewage treatment, in particular to a chemical dosing device for sewage treatment, which comprises a bracket, a chemical storage barrel is placed in the bracket, a support is detachably mounted at the top of the bracket through bolts, a metering pump is fixedly mounted at the top of the support, and a transmission box is fixedly mounted at the top of the metering pump. A driving motor is fixedly mounted at the top of the transmission box, a stirring and suction assembly penetrating into the pesticide storage barrel is mounted on the support, and the stirring and suction assembly comprises a suction pipe rotationally mounted in the support through a bearing; through spiral stirring blades of the stirring suction assembly, in the rotating process, comprehensive stirring of liquid medicine in the medicine storage barrel is achieved, the liquid medicine is prevented from precipitating and layering, the liquid medicine can be actively pushed to the suction hole through the centripetal pushing effect, the barrel bottom is cleaned through the cooperation of the stirring cleaning assembly at the bottom, it is ensured that the concentration of the extracted liquid medicine is uniform, and the medicine feeding precision is improved.

The invention discloses a method for preparing nitro-mesitylene through a micro-channel nitration reaction. The method comprises the following steps: respectively conveying mesitylene, fuming nitric acid and sulfuric acid to a micro-channel reaction module through a metering pump, and completing nitration reaction within a retention time of tens of seconds to several minutes. The introduction sequence of nitration reaction materials, the reaction retention time and the reaction temperature are cooperatively controlled, the nitration reaction is completed in the microchannel reactor in a continuous flow mode, operation is easy and convenient, safety is high, efficient continuous production can be achieved, meanwhile, emission of three wastes is reduced, and the industrial application advantages of being environmentally friendly and economical are achieved.

This utility model relates to the field of metering pump technology, and in particular to a single-head needle valve metering pump. It includes a metering pump body, which is equipped with an inlet / outlet needle valve switching mechanism for switching the inlet and outlet liquid flow channels. The switching mechanism includes a base connected to the metering pump body, and an inlet needle valve and an outlet needle valve respectively disposed on the base and mutually switching between each other. The base has a T-shaped flow channel communicating with the metering pump body, the inlet needle valve, and the outlet needle valve. When liquid enters the metering pump body, the inlet needle valve is in the open state, communicating with the T-shaped flow channel; when the outlet needle valve is blocked from the T-shaped flow channel, it is in the closed state. This utility model has a simpler structure. Through the mutual switching of the inlet and outlet needle valves, a smooth switching between liquid entry and exit of the metering pump body is achieved. Furthermore, the inlet / outlet needle valve switching mechanism can withstand high pressure, has sufficient thrust, and a fast flow rate, meeting the requirements of high-pressure metering pump use and improving the reliability and stability of the metering pump.

This utility model discloses an installation mechanism for a metering pump, including a preliminary positioning mechanism and a metering pump body. The preliminary positioning mechanism has an inlet pipe and an outlet pipe on one side for feeding and discharging materials. The metering pump body is initially positioned and snapped into the interior of the preliminary positioning mechanism. The preliminary positioning mechanism and the metering pump body are further reinforced by a secondary reinforcement mechanism. A position guide mechanism is provided on the outside of the inlet pipe to prevent the connecting hose from being pulled and bent. The preliminary positioning mechanism of this utility model can initially position the metering pump body, preventing it from swaying left and right during use. The secondary reinforcement mechanism then provides secondary reinforcement to ensure the metering pump body is fixedly installed. The position guide mechanism prevents the connecting hose from bending due to vibration of the metering pump body when connecting it to the inlet pipe, ensuring stable feeding.

The invention provides a heat exchanger on-line cleaning and anti-scaling system and method.The system comprises a gas-liquid two-phase generating device, a filtering device, a monitoring device and a controller, the gas-liquid two-phase generating device comprises a gas-liquid mixing tank and a Venturi tube, the gas-liquid mixing tank is connected with a gas storage tank and a cleaning agent metering pump, and the Venturi tube is connected with the gas storage tank; an outlet of the gas-liquid mixing tank is sequentially connected with the main control valve, the pulse generator and the Venturi tube; an outlet of the Venturi tube is communicated to an inlet of the heat exchanger; the filtering device comprises a plurality of filters arranged in parallel, inlets of the filters are communicated to an outlet of the heat exchanger, and outlets of the filters are communicated to the cleaning agent storage tank; the monitoring device is used for monitoring at least one of temperature difference, pressure difference and flow difference between an inlet and an outlet of the heat exchanger; the controller regulates and controls the gas-liquid two-phase generation device to operate according to data collected by the monitoring device, and online cleaning of the heat exchanger is achieved. Real-time monitoring, cleaning and anti-scaling treatment of the heat exchanger can be achieved, and normal work of the heat exchanger is guaranteed.

The invention relates to the technical field of test devices, in particular to a modularized sand-liquid mixing and accurate adding system for a sand-containing cavitation test of a water turbine, which comprises a sand-water mixing tank connected with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with a main pipeline, and a metering pump is arranged on the water outlet pipe; a first sand content monitoring sensor, a liquid level sensor and a stirring structure are arranged in the sand-water mixing tank; a material storage ball is arranged on the support, sand grains are arranged in the material storage ball, and a mass sensor is arranged on the support; and the conveying structure is connected with the storage ball and the sand-water mixing tank. The functions of sand liquid preparation, accurate metering, intelligent control, mixed injection and the like are highly integrated in an independent module to form a complete system which can operate independently. By means of the modular design, the system is compact in structure, small in occupied area and convenient to install, debug and maintain. And the high-precision sand content control ensures the accuracy and repeatability of test conditions, so that the test data is more reliable, and powerful support is provided for scientific research.

The utility model discloses a garbage incinerator front material pushing platform with a deodorization function, which relates to the technical field of spray deodorization, and comprises a liquid storage tank, the liquid storage tank is connected with a liquid inlet end of a liquid supply pump fixed on a base in a matching way through a connecting pipe, and the liquid storage tank is connected with the liquid inlet end of the liquid supply pump through a connecting pipe. Wherein the connecting pipe is further connected with a butterfly valve in series; the liquid outlet end of the liquid supply pump is connected with a liquid supply pipe, and the tail end of the liquid supply pipe is at least connected with one atomizing nozzle; according to the utility model, after liquid medicine in the liquid storage tank is used up, the make-up pump is started, an external water source enters the water inlet pipe and is pumped into the liquid storage tank, the medicine is added according to the proportion of water quantity and medicine quantity, and after the metering pump is started, the metering pump pumps out the medicine in the medicine tank through the medicine inlet pipe and conveys the medicine into the liquid storage tank through the medicine make-up pipe. Therefore, the addition of the medicament is realized; in this way, manual proportioning is omitted, and the requirement for spraying deodorization on the garbage incinerator pushing platform is met.

The present disclosure relates to a sizing equipment. The sizing equipment comprises a base, a promoter material tank, a conventional material tank, the conventional material tank and the promoter material tank are arranged on the base, a metering pump arranged on the base, a first temperature sensor, a filling pipe assembly in communication with the conventional material tank, and the filling pipe assembly is in communication with the promoter material tank through the metering pump, a controller electrically connected with the first temperature sensor, the controller is used for controlling the weight of the promoter material pumped into the filling pipe assembly through the metering pump according to the ambient temperature detected by the first temperature sensor.

The utility model relates to the field of recarburizing devices, in particular to an automatic alkali adding device for recarburizing agent desulfurization, which comprises a pipe body, a temporary storage tank and a stirring component, a liquid outlet is formed in the outer wall of the pipe body in a penetrating manner, a liquid inlet pipe is fixedly connected to the upper end of the pipe body in a penetrating manner, and two first communicating pipes are fixedly connected to the outer wall of the pipe body in a penetrating manner; the two first communicating pipes are provided with magnetic turning plate liquid level meters. When the pipe body is filled with liquid, the water level of the liquid in the pipe body can be monitored through the magnetic turning plate liquid level meter, the liquid in the pipe body is conveyed through the first connecting pipe on the liquid outlet, the liquid in the pipe body is pumped into the third connecting pipe through the metering pump, and then the liquid is pumped into the temporary storage tank by opening the electromagnetic valve. Liquid in the temporary storage tank is subjected to pressure detection and protection through an air chamber type pulse damper and a pressure gauge, finally, an output pipeline is connected with a fourth connecting pipe, and then the liquid is discharged by opening a stop valve.

The application discloses a kind of manganese-rich precursors and preparation method and positive electrode material thereof, and is related to lithium ion battery material technical field.The preparation method includes that metal salt solution, precipitant and complexing agent are simultaneously added to reaction kettle by metering pump and carry out coprecipitation reaction, and hydrogen peroxide solution is pumped into reaction system by metering pump in stages during reaction process and carries out liquid phase micro-oxidation treatment.The prepared precursor is spherical secondary particle, and is composed of nanoscale particle and interwoven sheet-shaped primary particle.The method utilizes the direct and uniform oxidation effect of hydrogen peroxide in liquid phase, and in-situ constructs stable high-valence manganese oxide on the surface of precursor, so that the prepared positive electrode material simultaneously has excellent electrochemical kinetics and structural stability.