55results about How to "Reduce water consumption" patented technology

The utility model discloses a water tank with constant pressure measurement function belongs to water tank technical field, aims at solving the most water outlet point of prior art is located water tank under one side of liquid level, and the position of water outlet point is fixed immovably, along with the water supply of carrying out, the liquid level in water supply water tank is constantly reduced, wherein the distance between water outlet point and liquid level will constantly reduce, lead to the water pressure of water outlet point constantly small, although the water tank usually has the water replenishing mechanism to reach the purpose of time water replenishing, but actually still can form fluctuation to the water pressure of water supply water tank, cannot realize constant pressure water supply, and the water replenishing of water tank single, every day also cannot carry out measurement statistics, thereby the actual water replenishing of subsequent management personnel cannot know water tank accurately, thereby bring the problem of influence to the judgment and overhaul of personnel. Including stainless steel water tank, the upper side of stainless steel water tank is connected with inlet pipe, and the other side below of stainless steel water tank is connected with outlet pipe.

The utility model belongs to hardware equipment technical field, concretely relates to a high stability wisdom water affair water -saving control device, including casing and water -saving component, the casing includes the pipe orifice of water flow into and discharge, water -saving component installs in one end of pipe orifice, water -saving component includes the base plate of being located in the pipe, the aperture gradually changing formula's chamber mouth and cyclone assembly, when liquid flows through water -saving component, liquid is separated in turn, and then is discharged uniformly from cyclone assembly, the shell still is provided with rotor in the casing shell, the top of casing is provided with end cover, and the rotor is limited to the inside of casing, the bottom of casing is equipped with sensing circuit, the base plate is provided with first water -passing hole equally, fluid passes through first water -passing hole to chamber mouth, and the cavity wall of chamber mouth gradually approaches the axis of pipeline, forms second water -passing hole. The utility model reduces water consumption but does not reduce sensory flow, reduces actual water consumption, realizes water -saving effect, and simple assembly, modular design can be adapted to different pipe diameters and fluid, and has good stability.

This invention relates to the field of washing machine technology, specifically providing a washing machine and its control method, which at least solves the problem of easily damaging clothes. The washing machine provided by this invention includes a body, a washing drum, and a door. The body has a clothes loading port; the washing drum is rotatably disposed within the body and has a washing chamber; the door is hinged to the body and used to open and close the clothes loading port, and has a detergent dispenser. The door also has an injection channel and an outlet channel. The injection channel communicates with both the detergent dispenser and the washing chamber, and the outlet channel communicates with both the detergent dispenser and the washing chamber. The inlet of the injection channel is configured to receive water overflowing from the washing drum during rotation, so as to dilute the detergent added a second time in the detergent dispenser. This invention effectively avoids the corrosion risk that may be caused by high-concentration detergent directly contacting clothes and also reduces the overall water consumption of the washing machine.

The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the rotation action can be realized to filter core through drive assembly, and cooperate transmission assembly and drive cleaning brush rotation, the utility model centrifugal force throws out high -speed water flow, and the impact force of impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning brush, under double effect, can more efficiently remove strong viscosity, firmly attached contaminant and deep pore small impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.

The present application belongs to the technical field of dust prevention of mine shaft, and particularly relates to a mine shaft spray dust-settling device, which comprises a vehicle body, an intercepting spray assembly is arranged on the vehicle body, the intercepting spray assembly comprises a support fixedly connected to one side of the upper end of the vehicle body, a lifting plate is slidably connected to one side of the support, a fixing ring is fixedly connected to one end of the lifting plate, a plurality of mounting plates are uniformly distributed and fixedly connected to the inner ring of the fixing ring in the circumferential direction, a plurality of connecting rods one are rotatably arranged on the mounting plates, and connecting rods two are rotatably arranged at one end of the connecting rods one. The present application utilizes the intercepting spray assembly, when dust is blown out through the mine discharge opening, the partial closure of the mine discharge opening area by the enclosure causes the diffusion path of the dust to be forcibly constrained, and the dust can only be discharged along the internal passage of the enclosure. A plurality of spray heads are aimed at the interior of the enclosure, and the spray range covers the entire cross section of the enclosure, so that the unorganized diffusion of the dust is changed into organized discharge, and the dust-settling effect is significantly improved.

The utility model discloses a kind of phosphoric acid waste liquid purification concentration whole membrane systems, including sequentially arranged ultrafiltration system (1000), nanofiltration system (2000) and membrane distillation system (3000);The membrane distillation system (3000) includes the membrane distillation raw water tank (3100) being communicated with the nanofiltration water tank (2600) effluent of nanofiltration system (2000), the first heat exchanger (3200) being communicated with membrane distillation raw water tank (3100) effluent, the second heat exchanger (3300) being communicated with first heat exchanger (3200) effluent, the membrane distillation tank (3400) being communicated with second heat exchanger (3300) effluent, the condenser (3500) being communicated with first heat exchanger (3200) steam outlet, the cold water tower (3600) being circularly communicated with condenser (3500).The utility model can achieve the technical effect that freely add or reduce membrane component quantity reaches different concentration required.

This utility model relates to the field of diesel engine technology, and in particular to an integrated fuel release and heat tracing tank for low-speed diesel engines. The integrated fuel release and heat tracing tank for low-speed diesel engines includes a fuel release tank, a heat tracing tank installed inside the fuel release tank, a high-temperature steam inlet pipe fixedly connected to the top of the heat tracing tank, a high-temperature steam outlet pipe fixedly connected to the bottom of the heat tracing tank, a cleaning mechanism installed inside the heat tracing tank to promptly clean the condensate formed by steam inside the heat tracing tank, and a recovery mechanism installed on the back of the fuel release tank to recover the condensate and reuse it in the cooling process. This fully utilizes the low-temperature waste heat, replacing fresh cooling water or low-temperature water sources, significantly reducing the energy and water consumption of industrial cooling systems. This utility model improves the utilization efficiency of the hot steam inside the heat tracing tank through the cooperation of the cleaning and recovery mechanisms.

The utility model belongs to the wood structure building fire prevention technical field relates to a kind of fireproof construction system of wood structure building structure frame, it includes the wooden crossbeam (1) of structure frame, the top surface of wooden crossbeam (1) is provided with the recess (2) of length and is equipped with water delivery pipeline (3) in the recess (2) of length, multiple spray heads (4) are equipped on water delivery pipeline (3) and are spaced, the front and back side and the bottom surface of wooden crossbeam (1) are equipped with multiple drainage recesses (5) corresponding with multiple spray heads (4) one to one, the junction of the top surface and the front and back side of wooden crossbeam (1) is equipped with first inclined plane (6) and the junction of the bottom surface and the front and back side of wooden crossbeam (1) is equipped with second inclined plane (7), the outer surface of wooden crossbeam (1) is all equipped with flow guide structure (8).It can use very small water volume to extend the fire resistance limit of wood structure load-bearing component, to improve the safety of heavy wood frame structure building with low-cost strategy.

The application relates to the field of continuous dehydration systems, and discloses an industrial continuous dehydration vacuum system and a working method. The system comprises a front-stage vacuum circuit and a rear-stage vacuum circuit. Two liquid ring vacuum pumps are connected in series. The front-stage vacuum pump adopts conventional water as sealing liquid, and the rear-stage vacuum pump adopts a high-boiling-point liquid dissolved in water as working liquid. The front-stage vacuum pump provides negative pressure, and a heating source is used to remove a small amount of water in the working liquid in time, so that the vacuum degree of a production device is ensured. Meanwhile, an automatic control process scheme is adopted, so that the purpose of continuous and stable dehydration under various vacuum conditions is achieved. The continuous dehydration vacuum system provided by the application is reliable in operation, has strong adaptability to the change of water vapor content in extracted gas, produces a small amount of waste water, can meet various vacuum working conditions and continuous operation.

The application discloses a kind of based on deep learning's plate shape control spray flow optimization method, it is characterized in that include following steps: S1 data acquisition: obtain plate specification parameter, process parameter, spray system state parameter and plate shape measurement data, and with time stamp and volume number / rolling section identification;S2 data pre-processing: to the acquisition data is washed, abnormal processing, normalization or standardization, feature engineering, and with sliding time window Construction time series sample;S3 prediction model: the sample after pre-processing is input into long short-term memory network containing self-attention mechanism, and the flow setting value of spray system is output;By this method, the dynamic optimization and real-time adjustment of spray flow can be realized, the plate shape control precision and production adaptability are improved, and the trial-and-error cost and artificial experience dependence are reduced.

The application belongs to the technical field of alumina production and specifically relates to a preparation method of a sodium aluminate solution fine filtration filter aid, which uses lime or lime milk, a sodium aluminate solution and ethanol or methanol as raw materials, and the ratio of the raw materials is as follows: 1 part of lime or lime milk, 2-20 parts of the sodium aluminate solution, 0.02-0.2 parts of ethanol or 0.01-0.1 parts of methanol, the concentration of the sodium aluminate solution is 100-300 g / L of Na2O and 50-220 g / L of Al2O3, the sodium aluminate solution fine filtration filter aid is prepared under the conditions of a reaction temperature of 25-105 DEG C and a reaction time of 5-240 minutes. The application has the following effects: the use amount of the lime milk for filtration can be greatly reduced, and the loss of alumina, steam consumption, water consumption and power consumption caused by the large use amount of the lime milk can be reduced.

The present application relates to a kind of refractory dispersant and its preparation method in the technical field of refractory additive, it is the comb structure copolymer, the copolymer includes styrene-maleic anhydride copolymer main chain, polyethylene glycol side chain grafted on the styrene-maleic anhydride copolymer main chain by ester bond, and phosphate radical;The polyethylene glycol side chain includes short-chain polyethylene glycol with molecular weight of 400-600 and long-chain polyethylene glycol with molecular weight of 800-1200.The present application realizes the precise division of function by using asymmetric compound polyethylene glycol side chain of specific molecular weight range, and controls esterification grafting degree is 50%-85%, not only can provide excellent initial wetting and dispersion force, ensure that slurry has excellent construction fluidity, but also can effectively prevent particle re-aggregation and sedimentation under static or shear, so as to fundamentally solve the technical problem that traditional dispersant is difficult to consider high initial fluidity and long-term anti-settling property, plasticity.

This utility model belongs to the technical field of rice washing devices, and discloses a rice washing device, including a basket assembly for holding rice for washing, and a box assembly for holding water for washing rice. A water circulation component is provided on one side of the box assembly for water intake and circulation for washing rice. The basket assembly is inserted into the top of the box assembly. The box assembly includes a box body, with an overflow trough on the top circumference of the box body. The top surface of the overflow trough is higher than the top surface of the box body. A return water pipe is provided at the bottom of the overflow trough, with its bottom end penetrating into the box body and equipped with a check valve. A waste discharge pipe is provided in the middle of the bottom of the box body, and a waste discharge valve is installed on the waste discharge pipe. The water circulation component includes a water pump, with its inlet connected to the box body. In this rice washing device, the cylindrical filter screen at the bottom of the basket intercepts rice, allowing sand and gravel to sink to the conical bottom of the box; floating bran is discharged through the overflow trough, achieving three-stage separation of sand, rice, and bran.

This invention belongs to the field of dust collection robot technology, specifically relating to a factory intelligent dust collection spray robot system based on multi-sensor collaboration. The system includes a vehicle body, a sweeper mounted on the vehicle body, an electronic control system within the vehicle body, a vision recognition module mounted on the vehicle body, a dust collection module mounted on the vehicle body, and a dry fog module mounted on the vehicle body. The electronic control system controls the operation of the vision recognition module, dust collection module, and dry fog module. The vision recognition module is used to construct a map and optimize the dynamic path in real time. The dust collection module absorbs dust through graded filtration. The dry fog module dynamically adjusts the atomized particle size and spray flow rate of the dry fog nozzles according to the dust concentration to prevent dust diffusion. This invention features improved dust collection efficiency, reduced development and maintenance costs, and dust suppression effects.

The invention relates to horizontal cleaning equipment, and belongs to the technical field of cleaning devices. In order to solve the problems that an existing cleaning mode is small in cleaning strength, large in water consumption and prone to causing abrasion of a cleaned surface, the horizontal cleaning equipment comprises a cleaning system and a sewage recycling system used in cooperation with the cleaning system, the sewage recycling system comprises at least one water shovel, the water shovel is fixed to a rotating mechanism, and the rotating mechanism is fixed to the cleaning system. A sewage collecting tank is arranged in the middle of the rotating mechanism, the sewage collecting tank is a cavity with an upper opening, and the rotating mechanism is connected with the cleaning equipment main supporting structure through a bearing. According to the cleaning equipment, a compact and integrated cleaning process of flushing, brushing, purging, drying and sewage recycling, filtering and recycling is formed, and the beneficial effects of high standard, high efficiency, water saving and the like are achieved.

This invention relates to the field of solid waste treatment technology, and in particular to a method for multi-stage countercurrent water washing and dechlorination of waste incineration fly ash with a low liquid-to-solid ratio. This invention combines low liquid-to-solid ratio water washing with countercurrent water washing, and utilizes a rotary vibrator to achieve effective dechlorination of waste incineration fly ash, ultimately obtaining water-washed fly ash with a chlorine content of less than 1%. Compared with existing technologies, this invention organically combines low liquid-to-solid ratio water washing, countercurrent water washing, and a rotary vibrator, balancing dechlorination efficiency and water resource utilization. The process is stable and reliable, simple to operate, and has low energy consumption. The treated fly ash meets the requirements for subsequent resource utilization, providing an efficient and feasible new solution for the harmless treatment and resource recovery of waste incineration fly ash.

This invention discloses an ultra-efficient, water-saving high-pressure flushing device for toilets that uses air-water mixing. It can be used in conjunction with conventional toilets and is suitable for the construction or renovation of rural household toilets under the gray-black separation treatment model for village domestic sewage. The device includes a water storage tank, an air-water mixing pump, and a conduit. The water storage tank consists of a tank body and a lid. A conduit is located on one side of the bottom of the tank body, with a nozzle and toilet connector at the end of the conduit. The lid is reinforced with a cross beam, and the center of the cross beam connects to the air-water mixing pump. The air chamber of the air-water mixing pump is located on the upper part of the water storage tank. The pump body is connected to the cross beam of the lid by a reinforcing bracket. The lower part of the air-water mixing pump is connected to the air-water mixing pipe by sealing bolts. The air-water mixing pipe and the conduit are connected by a sealing ring. The upper end of the water intake pipe is connected to a Venturi adsorption chamber and fixed by the cross beam opening, while the other end is submerged at the bottom of the water storage tank. This device uses very little water (0.2 to 0.3 liters / flush), has strong cleaning power, a simple structure, does not require burial, and is easy to install and use.

This invention discloses a composite alkali production filtrate treatment system, including a reaction chamber with a stirring tank at the bottom and a gas collection pipe connected to the top. The upper wall of the stirring tank has two sets of inlets: a steam inlet connected to a steam supply pipe and a waste gas inlet connected to a hot waste gas supply pipe, forming a heating zone above the liquid surface in the stirring tank. The steam supply pipe is equipped with a steam flow valve to control the amount of steam input based on the temperature of the heating zone. This invention can reduce energy consumption and water usage in industrial alkali production, and decrease the discharge of ammonia stripping wastewater.

The embodiment of the present disclosure provides a self-cleaning mixing barrel for a farm. In a specific embodiment, the mixing barrel comprises a support, a material barrel arranged on the support, a side wall of the material barrel being provided with a discharge port near a barrel bottom, a barrel cover being detachably mounted on the material barrel, a first feeding port being formed in the barrel cover, a lifting mechanism being longitudinally fixed on the support, a motor being fixed on the lifting mechanism, a cleaning mechanism, and a stirring mechanism. In this embodiment, the cleaning mechanism is driven by the lifting mechanism to move longitudinally and rotate, so that residues on the inner wall and dead corners of the material barrel are completely removed, and the risk of mold is eliminated. The cleaning mechanism is lifted by the lifting mechanism to realize disassembly, so that the downtime is greatly reduced. The water consumption is reduced by brushing, the water consumption of a single time is reduced, and the sewage discharge is reduced. The mixing barrel is suitable for large-scale farms and can efficiently guarantee the health and safety of feed or other liquid inputs.

The application discloses a method for converting converter tailings, LF refining slag and LF dust into slag, and utilizes solid wastes generated by a long-process steel enterprise, i.e., fly ash and LF refining dust, as a conditioning material, uses a steel slag ladle as a reaction kettle, and adds the conditioning material into liquid refining slag to perform mineralization reaction, so as to convert the converter tailings, the LF refining slag and the LF dust into cementitious material resources with slag components, and achieve the purpose of expanding the resource utilization ways of the converter tailings, the LF refining slag and the LF dust, and highlighting the power of cross innovation in different technical fields.

The application provides a microgravity laundry device based on the atomization ozone principle, ozone is generated through an ozone generating unit, and the sterilization and disinfection effect of ozone is utilized, so that chemical detergents are not needed, and the subsequent water treatment is not burdened; water mist generated through an ultrasonic atomization unit is used as a washing medium, so that the problem that liquid washing medium is difficult to fully mix with clothes under microgravity is avoided, and the water consumption is greatly reduced; through the wetting effect of the water mist, the flatness of the clothes is improved, and the problem that the clothes are curled and wrinkled in the traditional laundry process such as rotation and stirring is avoided; meanwhile, ventilation is performed through an air circulation unit, and automatic laundry of the device is realized through a sensor unit and a start-stop control unit, so that the laundry demand of astronauts during long-term on-orbit stay is solved, and the problems that the ground laundry equipment is difficult to adapt to the space microgravity environment and the washing wastewater is difficult to be treated on-orbit are solved.

The utility model provides a hand -held single roll photovoltaic panel cleaning machine, contain support beam mechanism, cleaning roller mechanism, transmission mechanism, drive mechanism, telescopic link mechanism and spray mechanism. Support beam mechanism contains support beam, brush support board, chain guard. Cleaning roller mechanism contains brush roller. Transmission mechanism contains main transmission shaft and gear transmission. Drive mechanism contains brushless motor and motor cover. Spray mechanism contains spray frame, split fan-shaped nozzle and Y type reducing four branch pipes. This kind of hand -held single roll cleaning machine adopts dry cleaning and washing dual -purpose design, and realizes photovoltaic panel cleaning through brush rotation driven by brushless motor, and is equipped with self -adaptation regulation telescopic link to adjust angle, guarantees the efficiency of higher when cleaning, the range is more far, and adopts modular design, and the replacement of spare parts is more time -saving and labour -saving.

The utility model relates to a sludge dewatering cake scattering block automatic cleaning and flushing integrated device, its characterized in that: contain cleaning device body, sliding guide, mud cake desorption water collection system, plate frame machine control cabinet, drain groove, cleaning device body sliding connection is in the sliding guide, sliding guide fixed setting is in the inner wall's upper end of drain groove, plate frame machine control cabinet and cleaning device body electric signal coupling, and be used for the power supply of cleaning device body, the top of cleaning device body and mud cake desorption water collection system intercommunication, mud cake desorption water collection system and plate frame machine side's drain faucet intercommunication, and mud cake desorption water collection system is used for collecting the waste water that drain faucet discharged, the utility model replaces manual cleaning, reduces the operation safety risk, effectively reduces the water consumption, reduces the sludge compression workshop peculiar smell, improves the plant operation environment.

This application relates to the field of household appliance technology and provides a cooking device including a housing, a steam generator, and a condenser. The housing has a cooking chamber, a steam outlet, and a return outlet, both of which are connected to the cooking chamber. The steam generator is disposed in the cooking chamber and is used to heat water in the cooking chamber to generate steam. The condenser is disposed on the side of the housing along a first direction and includes a condenser and a return pipe. The condenser connects the steam outlet and the return pipe, and the return pipe connects to the return outlet. The condenser is configured to condense steam entering from the steam outlet into water, and the water can flow into the cooking chamber through the return pipe and the return outlet. The first direction intersects with the vertical direction. The cooking device provided by this application can reduce the frequency and amount of water added.

The application provides a water washing desalting system and a filter cake quality control method, device and storage medium thereof. The current working condition of an i-th solid-liquid separation device is obtained, and the moisture content of filter cake generated by the i-th solid-liquid separation device is determined. It is judged whether the moisture content of the filter cake generated by the i-th solid-liquid separation device is lower than or equal to the upper limit control standard of the moisture content of the filter cake. If yes, the i-th solid-liquid separation device is controlled to be in a working condition in which the moisture content of the filter cake is the upper limit control standard of the moisture content of the filter cake, and the filter cake generated by the i-th solid-liquid separation device is sent to a sintering proportioning process. If no, the i-th solid-liquid separation device is controlled to be in a working condition with the highest effective moisture content, and the filter cake generated by the i-th solid-liquid separation device is sent to an (i+1)-th water washing desalting system for further water washing desalting. The application can ensure that the filter cake quality does not cause the enrichment of alkali metals in raw materials, and can minimize the number of water washing stages, and reduce equipment loss, energy consumption and water consumption.

To overcome the problems existing in the preparation of lithium tetrafluoroborate using the current aqueous solution method, this invention provides a method for preparing battery-grade lithium tetrafluoroborate and a lithium-ion battery. The preparation method includes the following steps: adding and dispersing boric acid and lithium salt in an alcohol solvent, while simultaneously adding hydrofluoric acid dropwise to react and obtain a reaction solution containing lithium tetrafluoroborate. The reaction solution is then subjected to azeotropic removal of water using the alcohol solvent to obtain crude lithium tetrafluoroborate. The crude product is then purified by removing the alcohol solvent to obtain battery-grade lithium tetrafluoroborate. This invention also provides the application of the above preparation method in lithium-ion battery electrolytes. The method for preparing lithium tetrafluoroborate provided by this invention introduces an alcohol solvent during the reaction process, which reduces the complexation of the product with water in the traditional aqueous solution method. This significantly improves the yield and purity of the obtained lithium tetrafluoroborate, and simultaneously meets the stricter requirements for the content of impurities such as water, acid, and alcohol in battery-grade lithium tetrafluoroborate, thus facilitating industrial application.

This utility model discloses a mixed cleaning device for olives, including a lifting mechanism. A cleaning cage is provided on the lifting end of the lifting mechanism. A vibrating screen is provided inside the cleaning cage. A feed inlet is provided at one end of the cleaning cage corresponding to the first end of the vibrating screen, and a discharge outlet is provided at the other end of the cleaning cage corresponding to the second end of the vibrating screen. A spraying device is provided on the outside of the cleaning cage corresponding to the top of the vibrating screen, and a soaking tank is provided on the outside of the cleaning cage corresponding to the bottom of the vibrating screen. This utility model can perform mixed cleaning of olives by vibration, soaking, and spraying, reducing water consumption while improving the cleaning effect of olives.

The utility model discloses a mineral precipitation tank for laboratory relates to solid material technology field with liquid separation, solves the problem that the precipitated ore pulp is not easy to discharge from the box. The utility model adopts the technical scheme: mineral precipitation tank for laboratory, including the box formed by four side plates and a bottom plate, the side plate and bottom plate enclose the inner chamber of the upper part is the cuboid shape, the lower part is the straight trihedral prism shape, the three side edges of straight trihedral prism are all along the horizontal direction arrangement, the lowest side edge is equipped with the ore discharge port, the ore discharge port is equipped with the flow guide plate between one bottom surface or two bottom surfaces of straight trihedral prism, the flow guide plate is triangle and is arranged obliquely, and the three edges of flow guide plate are respectively sealed and fixedly connected with the inner wall of box. The flow guide plate makes the lowest position of the inner chamber of box change from a horizontal line to a point, and the ore discharge port is located at the point, when the thick ore pulp is discharged from the box by the mode of washing, the ore pulp can be easily and quickly washed to the ore discharge port and discharged.

The invention relates to the technical field of grouting materials, in particular to a high-performance prestressed duct grouting material which comprises water, cement, silica fume, mineral powder, limestone powder, a water reducing agent, microbeads, a plastic expanding agent, a suspension stabilizer and a defoaming agent.The cement, the silica fume, the mineral powder, the limestone powder and the microbeads are used for constructing a multi-element mineral admixture system; the powder materials with different particle sizes are mutually filled, so that close accumulation among particles is realized, and the void ratio among the powder is effectively reduced, thereby reducing the water consumption required for filling gaps and improving the compactness and the homogeneity of the slurry; meanwhile, the water reducing agent efficiently disperses cement particles through the steric hindrance effect, the microbeads reduce the friction resistance in the slurry through the spherical ball effect of the microbeads, the plastic viscosity and yield stress of the slurry are remarkably reduced through the combined action of the water reducing agent and the microbeads, and the slurry is endowed with excellent initial fluidity and long-time fluidity maintaining capacity; and it is ensured that the slurry can be rapidly and smoothly filled in the prestressed duct.