69results about How to "Guaranteed aggregation" patented technology

The invention provides a preparation method and application of a polycarboxylate water reducer containing a phosphate group. According to the preparation method, the defects that the structure and the molecular weight of the water reducer cannot be accurately controlled due to the chain transfer action of the phosphate group can be overcome. The preparation method comprises the steps that an unsaturated polyether macromonomer, unsaturated carboxylic ester and unsaturated alcohol are subjected to a copolymerization reaction in organic solvent to obtain a polycarboxylate water reducer pre-polymer; phosphorylated modification is performed on the polycarboxylate water reducer pre-polymer; on the condition that an acid aqueous solution exists, a carboxylic ester group on a product obtained after phosphorylated modification is hydrolyzed, and the organic solvent is removed; neutralization is performed to obtain the polycarboxylate water reducer containing the phosphate group; the unsaturated polyether macromonomer does not contain hydroxyl, phosphorylated modification is achieved through the step that an alcoholic hydroxyl group in the polycarboxylate water reducer pre-polymer and a phosphate esterification reagent are subjected to an esterification reaction, and the using amount of the phosphate esterification reagent is sufficient to completely esterify the alcoholic hydroxyl group in the polycarboxylate water reducer pre-polymer.

The invention discloses a flexible MEMS resistance-reducing skin and a manufacturing method thereof used for reducing skin friction resistance during the advancing of on-water or underwater vehicles, which employs micro-fine resident bubbles to reduce resistance and belongs to the fields of micro-machinery and fluid dynamics. The upper surface of the skin is a surface layer coated with micro-pit arrays and processed by surface soakage; electrolytic anodes and cathodes of comb-shaped micro-fine planar metal, which are attached on an insulating layer, are arranged at the bottom of the micro-pits; a flexible substrate is positioned below the insulating layer; wire leading terminals for electrodes are arranged on the lower surface of the skin; and both the surface layer and the substrate are made by flexible materials. The overall thickness of the resistance reducing skin is at sub-millimeter level, and the skin is in the status of flexible film. The manufacturing method is an MEMS micro machining technique compatible with the flexible MEMS technology. The flexible MEMS resistance-reducing skin is coated on the outer surfaces of the on-water or underwater vehicles, with power thereof supplied by the on-water or under-water vehicles. Micro-bubbles stably residing in the micro-pits are formed by water electrolysis reaction to coat most parts of the surfaces of the on-water or under-water vehicles, thus realizing the function of reducing skin friction resistance.

The invention relates to a dormancy induction method of deciduous fruit trees and a dormancy inducer thereof. The dormancy induction method comprises the step of spraying a dormancy inducer comprising the components of ethephon and giberellin to deciduous fruit trees to ensure that the deciduous fruit trees enter a dormant state in advance in normal temperature condition, to replace a certain cold accumulating time and to ensure the fruit trees bloom in advance. The dormancy induction method of deciduous fruit trees and the dormancy inducer thereof can effectively make up the insufficiency of cold requirement for subtropical and temperate deciduous fruit trees, can ensure that northern deciduous fruit trees enter a dormant state in advance in normal temperature condition, and can provide guarantee for dormancy, cold accumulating and nutrition accumulating of the fruit trees, and the fruit trees can be mature super early, and higher economic benefit can be created. The dormancy inducer used as an exogenous plant growth regulator has the advantages of low usage amount, small toxic side effect and low cost.

The invention discloses a distributed space-time coordination control method for a heterogeneous unmanned aerial vehicle cluster. Individuals in a cluster are divided into pilots, coordinators and followers; different task roles generate different functions to form a heterogeneous unmanned aerial vehicle cluster; a heterogeneous cluster unmanned aerial vehicle distributed space-time coordination control framework is further established; a coordination mechanism of a heterogeneous unmanned aerial vehicle cluster is designed; cost functions are designed according to role functions respectively;a coordination control problem is converted into a rolling time domain optimization problem; and then a swarm intelligence optimization algorithm is adopted for solving, so that cluster unmanned aerial vehicles are formed, and an expected formation is kept. A coordination mechanism designed by the invention determines affiliation relationships and expected relative position relationships between different roles and individuals, and limits objects and contents of information interaction, so that efficient communication and motion coordination effects among machines are realized, and the expandability of a cluster is supported.

The invention provides a method for preparing a polyaniline-ferroferric oxide (PANI-Fe3O4) nanocomposite. The PANI-Fe3O4 nanocomposite is prepared through one step by using iron nitrate nonahydrate and aniline (AN) as raw materials and ethanol as a solvent and utilizing a solvothermal method. The method has the beneficial effects that generation of inorganic Fe3O4 and organic PANI and effective composition of the two components are achieved through one step by adopting a single iron source and an AN monomer, without adding any alkaline precipitating agent, reducing agent or catalyst and even without surface modification of a Fe3O4 material, thus preparing the real nanoscale composite PANI-Fe3O4 with strong interaction between phases; in the composition process, Fe<3+> catalyzes polymerization of the AN monomer to form PANI while AN partially reduces Fe<3+> to Fe<2+>, thus ensuring conversion from Fe<3+> to Fe3O4; PANI can achieve the effects of effectively preventing agglomeration of Fe3O4 magnetic materials and obviously improving the magnetic property of Fe3O4.

The invention discloses an efficient, safe and environment-friendly oil-water separation device, which comprises a water inlet pipe, a treatment box, a liquid level gauge, a rotating shaft, a camera, an oil pollution discharge pipe, an external thread, an oil pollution suction pipe, an impeller, a clean water discharge pipe, a guide wheel and dirt Discharge pipe, cooler, filter plate, PH tester and thermometer, the water inlet pipe is connected with the treatment box, the treatment box is provided with a rotating shaft, the impeller is installed on the rotating shaft, the treatment box is provided with a cooler, and the treatment box is provided with Filter plate, the filter plate is connected with the top inner wall of the treatment box through a telescopic rod, the side wall of the treatment box is provided with a solid discharge pipe, the bottom of the treatment box is provided with a dirt discharge pipe, and the side wall of the middle part of the treatment box is provided with a clean water discharge pipe, inside the clean water discharge pipe A water filter membrane is provided, and an oil suction pipe is provided on the top of the treatment box, and the top of the oil suction pipe is connected with the oil discharge pipe through a joint. The invention quickly separates oil and water, ensures clean water quality, avoids pollution, has simple structure, is convenient to use, and is beneficial to popularization.

The invention relates to a water-saving type strip steel pickling line and a method capable of recycling hydrogen and without pumping and discharging acid mist. A steel strip is immersed in a water tank, and the lower ends of the end sealing plates arranged close to a water tank pressure roller in the acid tank direction and in sealed connection are inserted into the water in the water tank; the steel strip is immersed in a cleaning tank, the upper liquid surface of the immersed section in the acid tank direction and the upper plate and side plate of an overflow water sealing component form a pure space, and a water curtain is arranged in the space and mixed with the acid surface on the contact surface; two kinds of port sealing acid mist structures can totally seal the acid mist generated by the acid tank and permeating in the port to prevent escape. A 'wet-wire cluster type' dynamic sealing structure can totally mix the acid mist leaking from the gap formed by the roller diameter passing through the hat wall while the debugging is easy and the rotation resistance against the roller diameter is low. The pickling line is designed into a top hat-shaped height space; and according to the characteristics that the gas-state hydrogen and the acid mist generated by pickling are in great weight difference and the two are incompatible, the hydrogen and acid mist in the hat are at different areas according to the height, the hydrogen is recycled from the upper end of the top hat, and the middle and lower ends of the top hat are acid mist condensation areas.

The invention relates to the field of grinding device related technologies and in particular discloses a polymer water-based paint raw material grinding device. The device comprises a main body, a crushing unit, a grinding unit, a storage unit and a cleaning unit, wherein the main body is rectangular; a feeding hole is formed in the top of the main body; a discharging hole is formed in the bottomof the main body; an inspection window is formed in the side wall of the main body; the internal processing conditions can be conveniently observed by personnel by virtue of the inspection window; thecrushing unit is positioned below the feeding hole and arranged on the main body; the crushing unit is used for performing preliminary crushing on the materials; the grinding unit is arranged just under the crushing unit and is used for matching with the crushing unit to grind the materials subjected to preliminary crushing; the storage unit is arranged at the bottom of the discharging hole; thecleaning unit is partially arranged in the storage unit and is used for cleaning the inspection window; and the crushing unit, the grinding unit and the cleaning unit are controlled by a controller.

The invention discloses a four-dropwise addition method for preparing a high-water reduction and slump loss-resistant polycarboxylic water reducer. The four-dropwise addition method comprises the following preparation steps: 1), placing a polyether macromonomer and water into the bottom of a kettle, stirring until a solution has no significant block material or sheet material, and adding an inorganic peroxygen initiator and a trace amount of ferrous sulfate when the initial temperature is lower than or equal to 22 DEG C; 2), 5min later, simultaneously starting to dropwise add a reducing chaintransfer compound solution and an oxidizer solution for a hour; 3), 5min later, starting to dropwise add a small monomer solution for a-0.5 hour; 4), 20min later, starting to dropwise add a liquid caustic soda solution for a+0.5 hour; 5) after dropwise addition of the liquid caustic soda solution, preserving heat for 0.5-2.0 hours, stopping stirring to obtain a finished mother solution. The polycarboxylic water reducer has the dual characteristics of high water reduction and high slump loss resistance, is strong in adaptability, and can significantly improve the slump loss resistance, the cohesiveness and the flowing retention ability of freshly mixed concrete.

The invention discloses a preparation method for a gas making barrier of an anti-adsorption type polycarboxylic acid water reducer. The preparation method comprises the following steps: 1) placing a polyether macromonomer and water at the bottom of a reactor, stirring until a solution has no obvious blocky or sheet-shaped materials, controlling the initial temperature to be not higher than 22 DEGC, and adjusting the pH to be equal to 8.5 with liquid alkali; 2) after 5 min, simultaneously dropwise adding a reducing chain transfer complex agent solution and an oxidant solution, and controllingthe dropping time to be a h; 3) after another 5 min, dropwise adding a small monomer solution, and controlling the dropping time to be a to 0.5 h; 4) then after 20 min, dropwise adding a liquid alkalisolution, controlling the dropping time to be a+0.5 h; 5) at later reaction, when the reaction temperature exceeds 35 DEG C, opening cooling water to circulate, and opening an air pump and introducing micro pores of which the apertures are 0.5 to 2 mm to the reaction kettle; and 6) after dropwise adding the liquid alkali solution, carrying out heat preservation for 0.5 to 2.0 h, stopping stirring, thus obtaining finished product mother liquor. The polycarboxylic acid water reducer disclosed by the invention has strong adaptability, can resist burying or physical adsorption of strong adsorbates, and obviously improves the slump retention, cohesiveness and plasticity retention of fresh concrete.

The invention discloses an intelligent ball collecting device for a sports field. The intelligent ball collecting device comprises a pushing and sweeping assembly, a ball bin arranged at the middle position of the pushing and sweeping assembly, and a control unit electrically connected with the pushing and sweeping assembly; the pushing and sweeping assembly comprises a two-section arc-shaped plate, an opening is formed in one side of the two-section arc-shaped plate of the pushing and sweeping assembly, the opening faces a traveling end in the moving process of the pushing and sweeping assembly, and balls are gathered at the opening; driving wheels are arranged at the bottom of the ball bin, and the driving wheels are controlled through the control unit to drive the pushing and sweeping assembly to move or steer; after the edge of the opening of the two-section arc-shaped plate is closed, an enclosed ball cavity is formed, the balls are located in the enclosed ball cavity, and the enclosed ball cavity is vertically placed; and at the moment, the ball bin is located at the bottom of the pushing and sweeping assembly.

The invention belongs to the technical field of super absorbent resin, and discloses super absorbent resin having a cavity structure and a preparation method of the super absorbent resin. The preparation method comprises the steps: first carrying out surface modification treatment on an acid-soluble inorganic nucleation object, then polymerizing acrylamide on the surface of the nucleation object in the existence of a cross-linking agent and an initiating agent to obtain a polyacrylamide layer, dissolving the inorganic nucleation object by virtue of acid to form a cavity structure, polymerizing acrylic monomers on the surface of the polyacrylamide layer to obtain a polyacrylic acid layer, and finally performing cross-linking reaction on the surface of the polyacrylic acid layer by utilizing a surface cross-linking solution, to obtain the super absorbent resin having the cavity structure. The super absorbent resin having the cavity structure is high in absorption rate, high in pressurizing absorption amount and relatively wide in application prospect.

The invention relates to polyhexamethylene adipamide, and especially relates to high-viscosity low-rheology polyhexamethylene adipamide special fiber and a production method thereof. The technical scheme mainly solves the technological problems that in the prior art, in a polymerization manufacture and spinning process of polyarmide fiber, in order to obtain a high-molecular-weight polymer, the polymer is usually extremely high in viscosity and rheological motion resistance, thereby leading to extremely bad spinnability, and especially in the case that the polymer relative viscosity is 104-118, normal spinning production cannot be realized; and if the relative viscosity is blindly reduced, the polymer molecular weight is reduced, strength and other indexes of the prepared fiber are extremely bad, and thus industrialized usage conditions cannot be satisfied, and the like. The disclosed fiber comprises the following compositions in parts by weight: 0.2-0.6 part of glutaric acid (C5H8O4), 0.8-1.5 parts of adipic acid (C6H16N2), and 0.9-1.9 parts of hexylenediamine (C6H10O4). The polyhexamethylene adipamide special fiber is prepared from the three above compositions by performing neutralization reaction, polymerization, spinning and other steps.

The invention discloses a Roots gas flowmeter. The Roots gas flowmeter has the advantage that the condition that dust in metered gas enters a bearing and then affects metering accuracy can be prevented. According to the Roots gas flowmeter, a pressing plate is mounted at the side part of a shell body of the Roots gas flowmeter, the bearing is mounted on the pressing plate, a first side gap is formed between the inner side face of the pressing plate and the end face, opposite to the inner side face, of a Roots wheel, and the width of the first side gap is greater than 0mm and not greater than 0.35mm; a dustproof spacing ring sleeves on a core shaft and is provided with a shaft sleeve part and a convex ring part which is located on an external cylindrical face of the shaft sleeve part, the shaft sleeve part is in shaft fit with a core shaft hole, the front and rear ends of the shaft sleeve part are respectively abutted against opposite end faces of the bearing and the Roots wheel, also, the dustproof spacing ring is fixedly arranged between the bearing and the Roots wheel axially, at least two circles of annular sealing teeth, which are arranged along the radial direction of the convex ring part at intervals and take the central axis of the core shaft as a circle center, are formed in one side face, facing to the pressing plate, of the upper face of the convex ring part, the pressing plate and the dustproof spacing ring are in non-contact fit, and sealing tooth grooves, which form complicated labyrinthine gaps with the annular sealing teeth, are formed in the pressing plate.

The invention discloses a bamboo strip drying device. The bamboo strip drying device comprises a base plate and a drying chamber; the drying chamber is arranged above the middle part of the base plate; a plurality of transmission rollers are arranged at the internal lower portion of the drying chamber; the transmission rollers are connected through a bracket and are fixed to the internal left andright sides of the drying chamber; the left and right ends of the internal upper portion of the drying chamber are symmetrically provided with ultraviolet lamps; the left side of the internal upper portion of the drying chamber is provided with an exhaust fan component; the right side of the exhaust fan component is provided with a temperature sensor; the temperature sensor is positioned at the middle of the internal upper portion of the drying chamber; the right end of the temperature sensor is provided with an air blowing hood; the upper portion of the air blowing hood is connected with an air blower through a connecting pipe; the air blower is positioned at the middle of the external upper portion of the drying chamber; the right end of the air blower is connected with a water removingfilter; the right end of the water removing filter is connected with a circulating air pump; and the right end of the circulating air pump communicates with the middle of the right end of the drying chamber. The bamboo strip drying device disclosed by the invention is simple in structure, good in heating and drying effect, high in drying speed, good in drying effect and beneficial for popularization.

The invention discloses a battery mounting seat for a new energy automobile in the field of new energy automobile batteries. The battery mounting seat comprises an upper mounting seat, a connecting body and a lower mounting seat; the periphery of the upper mounting seat vertically extends downwards to form an open thin wall; grooves with wavy edges are formed in the bottom surface of the upper mounting seat and the surface of the lower mounting seat; hollow cylinders for insertion of batteries are arranged on the corresponding surfaces of the upper mounting seat and the lower mounting seat; aplurality of hollow cylindrical channels which penetrate through the connecting body and are arranged on the battery in a sleeving manner are uniformly arranged in the connecting body; and the top surface and the bottom surface of the connecting body are respectively connected with the bottom surface of the hollow cylinder in the upper mounting seat and the top surface of the hollow cylinder in the lower mounting seat. According to the invention, the battery can be conveniently installed and replaced, the replacement and installation time of the battery is effectively saved and the cost of thebattery is effectively reduced.

The invention discloses an unmanned aerial vehicle cluster control method of a jackdaw-imitating pairing interaction mechanism. The unmanned aerial vehicle cluster control method comprises the steps of: 1, carrying out initialization; 2, calculating a three-axis position and speed of a jackdaw; 3, judging whether the jackdaw is an information individual or not; 4, selecting interactive neighbors of the jackdaw; 5, calculating a jackdaw cluster control quantity; 6, calculating an unmanned aerial vehicle autopilot control instruction; 7, inputting the autopilot control instruction into an unmanned aerial vehicle model; and 8, judging whether immitation is finished or not. According to the unmanned aerial vehicle cluster control method, through unmanned aerial vehicle pairing of a certain proportion, the number of neighbors without man-machine interaction in the cluster is reduced on the premise that the consistency and aggregation of the cluster are guaranteed, and therefore the communication load is reduced. By adopting the unmanned aerial vehicle cluster control method, the unmanned aerial vehicle cluster can respond to stimulation more easily for one-way stimulation, and the stress precision is higher.

The invention relates to a concentrating photovoltaic condensation component, in particular to a concentrating solar power generation light-guiding convergence hopper, and belongs to the technical field of solar power generation. The concentrating solar power generation light-guiding convergence hopper comprises a light guiding hopper body, a fixed lens hopper body, a connecting plate and fixing installing holes, wherein the lower port of the light guiding hopper body is directly welded to the upper end of the fixing lens hopper body, the upper port of the light guiding hopper body is rectangular, the bottom end of the fixed lens hopper body is directly welded to the connecting plate, the lower port of the fixed lens hopper body is rectangular, and the two fixing installing holes are formed in the two opposite surfaces of the connecting plate respectively. According to the concentrating solar power generation light-guiding convergence hopper, the light guiding hopper body is simple in machining process and product structure, low in material consumption and light in weight. The light guiding hopper body cannot deform in the packaging and transport process and the follow-up installing process, and meanwhile it is ensured that converged sunlight completely concentrates on the effective surface of a concentrating photovoltaic cell chip. According to the concentrating solar power generation light-guiding convergence hopper, a secondary condenser lens can be fixed; in addition, focal spots converged through a Fresnel lens will converge on the effective area of a concentrating solar cell in a complete superposition mode through the light guiding hopper body in a certain time period. A motor of a solar energy tracker can only work one time in a set time period, and therefore the power supply power for the motor is greatly reduced, and more energy is saved.

The invention relates to a concentrating photovoltaic receiver with a secondary optical element and belongs to the technical field of solar power generation. The concentrating photovoltaic receiver with the secondary optical element comprises a secondary optical element, a fixed support and a concentrating photovoltaic receiver, wherein the secondary optical element and the fixed support are precisely and integrally bonded together through a silicone adhesive; fixed mounting legs are symmetrically arranged on the upper opening of the fixed support; fixed mounting holes are formed in the fixed mounting legs; the fixed mounting legs are fixed on the floor of a concentrating photovoltaic module box. The concentrating photovoltaic receiver with the secondary optical element is characterized in that the secondary optical element is simple in structure, small in volume, low in weight and low in material consumption, the fixing manner of the secondary optical element is simple and high in alignment accuracy so as to guarantee that the collected light is all concentrated on the effective area of a concentrating photovoltaic battery piece, and therefore, the conversion efficiency of a solar battery is improved.

The invention relates to the technical field of LED lamps, and discloses an LED module based on quick replacement of LED lamp bead modules. And the square metal shell is provided with a square embedding opening in the upper portion and used for clamping the light-transmitting lamp plate into the square metal shell, and a metal grating is arranged below the square metal shell. When a single LED lamp bead breaks down, the lamp bead body is pulled outwards, the LED lamp element assembly on the lamp bead body is separated from the lamp bead groove, then the annular magnetic sleeve and the magnetic block are magnetically separated, the conductive contact rod inserted into the insertion groove can be separated from the power-on element in the lamp bead body in a power-off mode, and at the moment, the lamp bead body is pulled outwards, and the LED lamp element assembly on the lamp bead body is separated from the power-on element in the lamp bead body. The whole lamp bead can be detached, in this way, the faulted lamp body is taken down, then the operation of replacing the lamp bead is achieved, meanwhile, in the using process of the heat dissipation plate on the LED lamp element assembly, heat generated by the lamp body can be fully conducted, then the single lamp bead on the whole LED has the self-heat-dissipation function, and the service life of the whole LED lamp is prolonged. In this way, the convenience of the LED lamp can be improved, and the service life of the LED lamp beads can be prolonged.

The invention relates to a liquid storage tank, in particular to a medical liquid storage tank with a special improved structure. The technical scheme adopted in the present invention is: a liquid medicine storage tank with a special improved structure, including a tank body, the tank body includes an inner tank body and an outer tank body, an interlayer is arranged between the inner tank body and the outer tank body, and the inner tank body It is an inclined structure with one side high and one side low. The bottom of the lower side of the inner tank is equipped with a liquid outlet, the bottom of the higher side of the inner tank is equipped with a discharge port, and a discharge ball valve is installed in the discharge port. , There is a discharge vertical pipe below the discharge port, the top of the discharge vertical pipe is connected with the discharge ball valve, the bottom of the discharge vertical pipe is connected with the unblocking ball valve, and the side wall of the discharge vertical pipe is also provided with a discharge The discharge port is connected with an inclined discharge pipe, and the lower end of the discharge pipe is connected with the discharge ball valve. The invention has the advantages of reasonable structure, good use effect and strong functionality.

The invention relates to the technical field of animal breeding, and discloses feces purifying and recycling equipment for rabbit breeding. The feces purifying and recycling equipment for rabbit breeding comprises a breeding ring, wherein a slope ground is arranged inside the breeding ring, reserved grooves are formed in the left side and the right side of the top end of the breeding ring, vertical pillars are fixedly arranged at the top end of the periphery of the breeding ring, and connecting rods are movably arranged at the top ends of the insides of the reserved grooves. According to the feces purifying and recycling equipment for rabbit breeding, through arrangement of the reserved grooves, transverse frame rods can be well clamped and mounted in the reserved grooves, after a certainamount of feces is accumulated, the two connecting rods can drive a cleaning brush to move, feces can be well pushed, it ensures that the feces are collected towards a floor drain hole, the feces cleaning effect is improved, by the length-adjustable design of the transverse frame rods, fixation of breeding rings with different sizes is facilitated, and expansion of an applicable range of the equipment is facilitated.