1334 results about "Dual effect" patented technology

The invention relates to a microemulsion heavy wax crystal emulsifying dispersant applied to an oil well for tertiary oil recovery, and is mainly used for solving the problem that the oil production rate is influenced due to the high return pressure and the short thermal washing period of the oil recovery well caused by that serious wax precipitations are generated by the oil well which contains thickened oil and is high in polymer flooding and viscosity. The emulsifying dispersant is prepared from the following components by weight percent: 1% to 3% of high-molecular polymer wax inhibitor, 13% to 25% of organic aromatic solvent, 1% to 3.5% of emulsifying agent, 8% to 12% of sulfonate, 10% to 12.5% of alcohol, 10% to 20% of demulsifier and 25% to 35% of water. The emulsifying dispersant has the dual effects of eliminating and preventing the waxy bitumen colloid precipitations with long molecular chains or high carbon number in crude oil from being precipitated, so that the wall sticking quantity of condensate oil is greatly decreased; the running load of the oil well is reduced; and the well washing period is prolonged. Thus, the oil production rate is improved.

A dual-effect microbial feed additive for ruminant is prepared through pulverizing corn, steaming, liquefying, saccharified, inoculating lactobacillus acidophilus and saccharomyce cerevisiae, fermenting to obtain living bacterium preparation, culturing bacillus subtilis, aspergillus oryzae and aspergillus niger in the culture medium prepared from corn, bran and soybean dregs, fermenting to obtain composite enzyme preparation, and proportionally mixing said living bacterium preparation with said composite enzyme preparation. It can promote the growth and health of ruminant and increase the utilization rate of feed.

The invention discloses an intelligent shoe cabinet and a use method thereof. The intelligent shoe cabinet comprises a cabinet body, a cabinet door with a door stopper, a control panel, a camera, shoe boxes and a shoe box taking and placing mechanism. Combined frames are arranged on the left and right sides in the cabinet body and provided with movable beams. The shoe boxes are placed on the movable beams of storage cavities in the left and right sides in an overlap mode. The cabinet door is provided with a shoe box inlet and outlet and the control panel. The camera is fixed above the shoe box inlet and outlet. The shoe box taking and placing mechanism is installed in the cabinet body. The camera and the shoe box taking and placing mechanism are in signal communication with the control panel. The intelligent shoe cabinet is small in size and large in capacity and can meet the requirement of common families for storing shoes in daily life; with the intelligent appearance design and the touch operation process, a strong science and technology feeling is brought; use is convenient, and the shoe taking and placing efficiency is obviously improved; the intelligent shoe cabinet has the dual effects of a shoe cabinet and an ornament and can be freely placed and combined with other furniture at home.

The invention relates to a drug fertilizer composition for preventing and treating green turf diseases. The drug fertilizer composition comprises the following components by mass percent: 0.05-5% of antimicrobial actives, 0.05-1.5% of plant growth regulator, 45-60% of macronutrient compound, 1-15% of trace nutrient element compound, 5-25% of active organic nutrient substance, and 0.5-15% of booster. By adopting the drug fertilizer composition, the plant growth regulator is reasonably compounded with a protective fungicide or a fungicide with treatment and eradication functions. An experiment proves that the drug fertilizer composition has an obvious synergic effect, and is further compounded and fused with the plant nutrient substance, so as to achieve dual effects of the drug and the fertilizer. The green turf diseases can be prevented and treated, sufficient balanced nutrient elements can be provided for maintaining the lawn, synchronous use of the drug and the fertilizer is achieved, and the drug fertilizer composition can be widely applied to growth of the golf green lawn and / or prevention and treatment of diseases.

The invention discloses a friction welding method of a titanium-aluminum alloy turbine and a 42CrMo quenched and tempered steel shaft, which aims to solve the technical problem that when the titanium-aluminum alloy turbine rotor and the quenched and tempered steel shaft are connected by the current method, the tensile strength of a joint is low. The invention has the technical scheme that an embedded groove in a shape of a solid of revolution is processed at one side of the titanium-aluminum alloy turbine; in the welding process, the welding end surface of the turbine shaft has friction with the welding surface of the embedded groove of the titanium-aluminum alloy turbine; and by controlling the friction shortening amount, the casting fins formed at the turbine shaft side are fully filled into the embedded groove. Thus dual effects of metallurgical bonding and mechanical connection of the welding surface are achieved, and the tensile strength of the joint of connecting pieces at room temperature is increased from 390MPa in the background art to 480-537MPa.

The present invention relates to an intelligent temperature adjusting preservation refrigerator which is characterized in that the inside of a non-refrigerating room of the refrigerator is provided with a storage box; the lower part of the storage box is provided with a pressure sensor which can detect the weight of stored goods at any time; at the same time, a control panel of the refrigerator also distinguishes the variety of the stored goods. When the invention is used, the main control panel determines the refrigerant time and the optimal preservation temperature according to the variety and the weight of the stored goods, thereby achieving the dual effect of saving electric energy consumption and increasing the preservation degree of goods.

The invention discloses a solar aided carbon dioxide trapping integrated system, which mainly comprises three parts, i.e. a power generation subsystem, a carbon dioxide trapping subsystem and a solar heat collection subsystem, wherein the subsystems are connected mainly through a boiler feed water heater, a reboiler and a flue gas pretreatment device to form the whole integrated system. According to the system, the high and low energy requirements of related parts among the solar heat collection subsystem, the power generation subsystem and the carbon dioxide trapping subsystem are reasonably allocated and integrated in different connecting ways at the heat output end of the solar heat collection subsystem to realize the gradient utilization of energy, so that the energy consumption of extraction of vapor from a steam turbine of a power plant can be greatly reduced, the stability of the power plant can be maintained, the dual effects of utilizing renewable energy resources and reducing the carbon dioxide emission of the power plant are achieved, and the large-scale application of solar energy and an integrated flue gas trapping technology in China are forcefully promoted.

The invention provides a metathesis method for preparation of potassium nitrate. After raw potassium chloride, ammonium nitrate and craft water finish their preparation at a certain ratio, they are input into vacuum cooling crystallizer. Then potassium nitrate is separated by crystallization and grows up. The crystallized liquid thickens by the thickening apparatus and continuously separates potassium nitrate as aim products by centrifugal machine. After the separated mother liquid exchanges heat with the reacting liquid, it is input into natural circulation evaporator to concentrate, adopting backward feed and dual effect concentration with constant pressure in the first chamber and negative pressure in the second chamber. Through cooling crystallization, thickening by the thickening apparatus, the concentrated liquid continuously separates ammonium chloride as by-products. The gained secondary mother liquid returns to preparation groove. Repeating this cyclic process, we could sequentially get solid potassium nitrate and ammonium chloride.The invention has improved production stability and product quality a lot and reduced raw material consumption and energy consumption, with simple and serial flow process. The invention has realized the mass production.

The invention provides an automatic marking method for karaok vocal accompaniment. In the method, pitch, beat position and volume of a singer are compared with the original pitch, beat position and volume of the theme of a song to generate tone sensation score, rhythm sensation score and emotion score respectively, so as to obtain weighted total score in a weighted marking method. By using the method, the pitch, beat position and volume error of each section of the song sang by the singer can be exactly worked out, and a pitch curve and a volume curve can be obviously displayed, so that the singer can learn which part is sung incorrectly and which part needs to be enhanced. The invention also has the advantages of dual effects of teaching and entertainment, high practicability and technical advancement.

The invention discloses an ultraviolet-curable anti-fingerprint antistatic paint composition comprising the components of, by weight: 5-10 parts of fluorine-modified acrylate oligomer, 10-20 parts of silicon-modified acrylate oligomer, 50-65 parts of high-functionality acrylate oligomer, 10-20 parts of high-functionality acrylate monomer, 5-10 parts of dual-functionality monomer, 4-6 parts of a photoinitiator, 2-5 parts of an antistatic auxiliary agent, and 0.05-3 parts of an auxiliary agent. According to the invention, UV-curable anti-fingerprint resin and UV-curable antistatic auxiliary agents are adopted. The composition can be directly used in an existing UV-hardened paint system. After UV curing, anti-fingerprint performance and antistatic performance achieve good synergetic effect. The coating has dual effects of preventing fingerprint and preventing static electricity. No auxiliary agent migration surface exists. Anti-fingerprint and antistatic effects are not influenced.

The invention provides a sustained-release temperature-sensitive blood vessel embolic gel used for treating tumor. The sustained-release blood vessel embolic gel is prepared by entrapping a medicine by using a pharmaceutically acceptable carrier. The medicine is an anti-tumor medicine, and the pharmaceutically acceptable carrier comprises a gel prepared from poloxamer polymer, polyvinyl pyrrolidone, and the like or a composition thereof. The polymer material accounts for 5-65% of a gel mass. The particle size of the gel is in a range of 10nm to 150mum. The embolic agent is liquid gel under normal temperature, and can be used for direct injection through catheter. After injection into body, with the increase of temperature, the liquid gel is rapidly solidified into gel. Also, according to requirements, different medicines can be entrapped, and embolism and medication dual effect can be achieved through local sustained-release. Therefore, the gel provided by the invention can be used as an embolic agent for endovascular treatment, and can be used in various benign and malignant tumor transcatheter arterial chemoembolizations. The preparation method provided by the invention is simple, and is suitable for industrialized productions.

The invention discloses a biomass carbon catalyst and a preparation method and application thereof. The precursor of the catalyst comprises biomass and metal salts, wherein the biomass includes one or more of maize straw, corncob, rice straw, cotton straw, peanut straw, peanut shell, wheat hull, rice hull, wood, sawdust, bamboo wood and weed. Through controlling addition of metal salts in different amounts, adjusting impregnation concentration of the precursor and reaction ambient and carbonization and nitriding treatment temperatures, the biomass carbon catalyst with controllable and adjustable pore structure and specific surface area can be prepared. When used as a fuel battery cathode catalyst, the biomass carbon catalyst shows excellent oxygen reduction reaction activity and stability. The preparation process is simple in flow, short in period and free of environment, provides a novel high-value-added resource recycling way for waste biomass and has dual effects of biomass disposal and energy and power generation.

The invention discloses a preparation method of a high-voltage lithium cobalt oxide cathode material which comprises the steps: (1) mixing cobaltosic oxide containing doped element M, a lithium source, oxide containing doped element M', a grain refiner and a fluxing agent to obtain a primary mixture; (2) sintering and smashing the primary mixture to obtain primary sintered powder; (3) mixing the primary sintered powder with a coating material to obtain a secondary mixture; (4) sintering and smashing the secondary mixture to obtain the lithium cobalt oxide cathode material. According to the preparation method disclosed by the invention, the problem of microscale segregation of distribution of doped elements in the product is solved by two modes of doped element premixing and dry-method mixing; a coulter type mixing technology is utilized to solve the problem of segregation of different matters in material mixing; the grain refiner and the fluxing agent are combined for use to synthesizea material in a mixed morphology; technologies such as dual effects of doped element surface crystallization catalysis and the coating material and the like are utilized; thus, performance of the high-voltage lithium cobalt oxide is obviously improved.

The invention provides an inside-mixing atomizing nozzle device. The nozzle device comprises a mixing cavity, the side wall of the mixing cavity is provided with an air inlet pipe, the outlet of the mixing cavity is provided with a spray pipe, and an airflow cover is sleeved outside the spray pipe. The inside-mixing atomizing nozzle device has the advantages of dual effects of airflow atomizing and airflow impacting, so that materials are blown away and atomized by high-speed airflow to form airflow mixed mist to rotate inside the cavity at a high speed and then impacted and collided by the high-speed airflow to be smashed into a mist shape; an ultrasonic airflow atomization function, so that the airflow atomization effect can effectively enhanced and compressed air can be saved; an outlet liquid drop atomizing function, so that air-material mixed mist can airflow-atomize condensation mass discharged along the wall again; simple structure, large material through holes and blocking-resistance. Besides, the inside-mixing atomizing nozzle device can well atomize fluid materials with poor fluidity, high solid content and high viscosity or even containing particle or fiber impurities.

The invention relates to porous carbon and its preparation method. Specifically, the carbon material has a prismatic block shape from macroscopic view, and the size of a single block body is 5-20 m (side length of the prism). The single-block material has a hierarchical porous structure, including macropores of 50-300 nm, a mesoporous structure of 2-10 nm and micropores of less than 2 nm. The macropore structure is composed of three-dimensional graphene wall, and the mesopores and the micropores are composed of holes in the graphene wall. Nitrogen and phosphor are doped in crystal lattice of the carbon material, wherein doping concentration of nitrogen is 0.5-15.5%, and doping concentration of phosphor is 0.5-8.5%. The material is formed by in situ polymerization of a soft template and metal under catalytic dual effects. The material has potential application value in fields of catalysis, energy storage, adsorption and the like.

The invention belongs to the engineering field of materials and discloses a two-component high-penetrability epoxy resin waterproof reinforcing coating, and a preparation method and application thereof. The coating consists of a main ingredient A solution and a main ingredient B solution. The main ingredient A solution contains epoxy resin, activated thinner, carbonyl compound, plasticizer and polyoxyethylene surfactant. The main ingredient B solution contains polyamine, intermediate activating agent, silane coupling agent and accelerating agent. The coating disclosed by the invention can be directly coated, the curing time is short, the penetrability is good, the coating can infiltrate into a treated surface, pretreatment and a protection layer are not required, the dual effects of waterprevention and reinforcing can be taken, the adhesive force is more excellent, the toughness is good, the requirement on the performance of waterproof coatings can be satisfied, the coating additionally has the characteristics of corrosion resistance, high temperature resistance, aging resistance and the like, and the defects of long curing time, insufficient toughness, poor penetrability and thelike of the existing like products are overcome.

The invention relates to a wire rope lubricating grease composition having dual effects of lubrication and anti-corrosion. The composition comprises the following components: 51.0 % to 72.5 % of No. 2 composite calcium sulfonate grease, 25.0 to 38.0 % of low-freezing-point base oil, 0.2 to 1.0 % of diphenylamine, 1.3 to 5.5 % of colloidal graphite and 1.0 to 4.5 % of ozocerite. According to the invention, the composite uses the specific composite calcium sulfonate grease as a base oil, and is added with the low-freezing-point base oil and various additives to further improve performance such as low-temperature resistance, anti-oxidation, wear resistance, and water resistance of the product, so that the wire rope lubricating grease having dual effects of lubrication and anti-corrosion can be obtained. The lubricating grease has dual effects of lubrication and anti-corrosion, and can delay corrosion and wearing speed of the wire rope. The product is suitable for lubrication and protection of various wire ropes under ocean climate conditions such as seaport, marine ship, offshore drilling platforms, etc.

The invention discloses a method for preparing organosilicon quaternary ammonium salt modified polyurethane resin for a marine antifouling coating. The method comprises the steps of: firstly, preparing double hydroxyl end-organosilicon quaternary ammonium salt from 1,3-bi[3-(1-methoxyl-2-hydroxy propoxy) propyl]-tetramethyl disiloxane, gamma-chlorinated propyl methyl dimethoxy silicone, dimethyl dimethoxy silicone, deionized water and dodecyl dimethyl tertiary amine; then mixing the prepared double hydroxyl end-organosilicon quaternary ammonium salt, the polyether polyol and the diisocyanate in a solvent; adding a curing agent to prepare the organosilicon quaternary ammonium salt modified polyurethane resin for the marine antifouling coating. The organosilicon quaternary ammonium salt modified polyurethane resin prepared by the method is combined with dual effects of low surface energy and killing, and used as the marine antifouling coating film forming matter. Thus, absorption of marine organism can be restrained; the bacteria absorbed at the surface of a ship body can be killed through the quaternary ammonium salt.

The invention provides a preparation method of flame retarding and anti-droplet fiber or textile, and the flame retarding and anti-droplet fiber or textile prepared by utilizing the preparation method. In the preparation method of the invention, fiber or textile is padded and grafted with a monomer solution, and subsequently grafted by electron radiation; then, the fiber or the textile is padded with a cross linker solution and treated with baking so as to cause a fibre-forming polymer to form three-dimensional net type structure. Both of the monomer solution and the cross linker solution can contain flame-retarding elements, and at least one of the two contains the flame-retarding elements so as to lead the synthetic fibers or textiles to realize the dual effects of droplet resistance and flame-retarding. The method of the invention is characterized by strong adaptability to processed objects and good flame-retarding and anti-droplet performance, and the industrialization of the method of the invention is easy to be fulfilled.

A process for preparing rutile-type titanium pigment powder by dual-effect crystal seed method includes such steps as preparing dual-effect crystal seeds, hydrolyzing titanium liquid while adding the crystal seeds while plays the role of crystal nucleus of hydrolized metatitanic acid particle, and calcining where it plays the role of the crystal nucleus for rutile-type phase change. Its advantages are low calcining temp, low cost and high output.

The invention discloses a water-based viscous-elastic damping sound-insulation adhesive, comprising 40-80 wt% of emulsion aclylate pressure-sensitive adhesive, 0-10 wt% of polyacrylate copolymer, 0-15 wt% of filling material, 0-10 wt% of tackifier, 0.3-2 wt% of surfactant, 0.1-0.5 wt% of antifoaming agent, 1-4.0 wt% of fire retardant, 12-40 wt% of water, and 0.05-0.3 wt% of bactericide, wherein the summation of the weight percentages of all the ingredient is 100 wt%. The water-based viscous-elastic damping sound-insulation adhesive belongs to an environment-friendly type adhesive, has no toxicity and no harm, is friendly to human body and environment, has high damping value, wide temperature range, and strong caking property, can form a damping platform with a damping value of more than 0.9 and a temperature range of more than 100 DEG C, has a T-peel strength of larger than 31 N / cm, and has the dual effects of sound insulation and caking.

The invention provides a pharmaceutical composition for treating embolism and a preparation method thereof, the pharmaceutical composition comprises a hydroxyl-contained biocompatible polymer materialand a monomer containing unsaturated double bonds and anion groups, as well as a polymer generated by polymerization reaction of an optional vinyl monomer, wherein the polymerization is initiated through free radicles, and bleomycin or pingyangmycin is combined on the anion groups of the generated polymer. The preparation method combines the bleomycin or the pingyangmycin on a carrier of the polymer, thereby being capable of fully playing the dual effects of an anti-tumor antibiotic and a hardening agent owned by the bleomycin or the pingyangmycin during the embolism treatment. The anion partof the polymer can be properly combined with the bleomycin or the pingyangmycin which is rich in amino groups, thereby not only realizing the higher drug loading, but also leading the drug in an emboliaztion agent to be exchanged by cation in human body, and further realizing the slow release. In addition, the embolic carrier of the polymer has the advantages of simple prepration technology andlow cost, thereby being applicable to large-scale industrial production.

The invention relates to an ecological floating bed device for in-situ enhanced denitrification of a micro-polluted river, and can effectively solve problems that in the water body of the micro-polluted river, the C / N is relatively low, the available carbon source is insufficient, the denitrification effect is inhibited, and the TN removal rate is relatively low. The technical scheme is that the ecological floating bed device comprises a floating bed frame and emergent plants; the floating bed frame is composed of a rectangular outer floating bed frame 2 and a grid-like inner floating bed frame 3; plant water-permeable planting grooves 4 are uniformly distributed in frame grids; the planting grooves are provided with a floating bed substrate 5 and the emergent plants 1 planted in the substrate; the lower part of the floating bed frame is filled with a perpendicularly downward combined filler; the lower parts of four corners of the outer floating bed frame 2 are connected with fixed piles 7 fixed on a riverbed through connecting ropes 6. The ecological floating bed device provided by the invention is suitable for purifying water body of natural river channels, lakes and reservoirs, as well as landscapes, has dual effects of water surface beautification and water purification, and is simple to mount, economical and practical.

The invention discloses a preparation method for aluminum-scandium alloy target materials. The preparation method comprises the following specific steps of selecting metallic aluminum powder with thepurity of 99.5% or above and the particle size of 10-165 [mu]m, and metallic scandium powder with the purity of 99.5% or above and the particle size of 10-240 [mu]m, and uniformly mixing the metallicaluminum powder and the metallic scandium powder according to the mass ratio that the metallic aluminum powder accounts for 50%-98% and the metallic scandium powder accounts for 2%-50% by mass; putting the mixed powder into a mould, and pre-pressing the mould at room temperature with the pre-pressing force of 20-35 MPa; putting the pre-pressed mould into a vacuum hot press which is vacuumized to 6.7x10<2>-6.7x10<3> Pa, entering a sintering stage, and then cooling the mould to the room temperature; after cooling the mould to the room temperature, releasing vacuum and removing the mould pressureso that the aluminum-scandium alloy target materials are obtained; the relative density of the aluminum-scandium alloy target materials is high through the dual effects of pressure application and sintering; and the composition proportion can be regulated within a larger range.

The invention belongs to the technical field of organic fertilizer, in particular to an antibacterial type composite biological organic liquid fertilizer, which comprises bacillus subtilis with the capacity of intensively decomposing enzyme and inhibiting bacteria, pseudomonades fluorescens are rhizosphere soil probiotics which can decompose pesticide residues and dissolve insoluble microcosmic salts of the soil, antibiotic actinomycetes secrete antibiotics so as to help to reduce the demand of chemical pesticides, trichoderma not only can prevent a variety of pathogenic bacteria, but also can decompose straw crude fiber so as to improve soil physical property and increase the content of available organic matters in the soil. The product also comprises chitin with the functions of sterilization and growth promotion. The bio-technology components are matched with organic and inorganic nutrients to synthesize a dual-effect novel biological agent with fertilizers and natural bio-fungicides. Therefore, the product is an organic green product and can be widely used for various crops.

The invention discloses a device and a method for hot water circulation based on an instant water heater. The device for hot water circulation comprises the instant water heater, wherein a hot water boosting pump is mounted on a water outlet pipe or a water inlet pipe of the instant water heater and used for providing water pressure for water in the device for hot water circulation; a temperature sensing probe is mounted on the water outlet pipe or the water inlet pipe and used for acquiring a water temperature in the device for hot water circulation; a controller is connected with the temperature sensing probe and the boosting pump respectively and used for judging whether the water temperature acquired by the temperature sensing probe achieves a preset temperature, if so, the controller controls the boosting pump to stop working, and if not, the boosting pump continues to work. The device and the method for hot water circulation based on the instant water heater disclosed by the invention have timing function and can heat within a set time and heat in other time ranges through trigging, thus realizing dual effects of energy saving and water saving.

The invention relates to hydrophilic oil absorption cotton. The oil absorption cotton consists of a hydrophilic and oleophylic adjuvant layer and a filtering layer covering the adjuvant layer, wherein the hydrophilic and oleophylic adjuvant layer is prepared from a super-amphiphilic material; the filtering layer is prepared from composite filtering cotton; the composite filtering cotton comprises a filtering cotton layer; active carbon particles are uniformly distributed in the filtering cotton layer; nonwoven cloth thin layers which are difficult to defiber are arranged on the top surface and the bottom surface of the filtering cotton; the super-amphiphilic material is a macromolecular carbon nano composite material; the composite material contains a nano-level space consisting of a hydrophilic polymer chain section and an oleophylic polymer chain section which are regularly arrayed. The hydrophilic oil absorption cotton has dual effects of oil absorption and water absorption; the filtering layer and the hydrophilic and oleophylic adjuvant layer are of multihole structures; on the premise of guaranteeing high oil absorption rate, the oil absorption rate is also increased.

The invention relates to a component used in textile machinery, in particular a natural luster finishing machine roller which comprises a roller body 21, a heating device and a rotary hook-up device, wherein the heating device comprises coils 7, a core barrel 22, a heat insulated pipe 6, a capacitor resistor 10, the core barrel 22, the heat insulated pipe 6 and the capacitor resistor 10 are sequentially arranged at the inner side of the roller body 21; the coil 7 formed by winding a rope-shaped heater is arranged in a groove of the core barrel 22; the starting end wire 8 of each group of coils 7 is connected with one live wire of a three-phase AC power supply on a carbon brush 16, the tail end wire 9 thereof is connected with a capacitor 10 in series and then connected with a shared neutral wire of the three-phase AC power supply on the carbon brush 16, and thus a star-shaped connection circuit combining resistor, inductance and capacitor is formed. By using the principle that power current can generate current while flowing through resistance wires and generate magnetic fields while flowing through magnetic fields to make magnetic conductors generate heat because of inductance, the natural luster finishing machine roller has the advantages of dual effects of electromagnetic and resistance heat, high heating speed, high energy utilization rate and few device failures.

A mixed 'firecracker-fireworks' having the effects of firecracker and fireworks and generating 5 colors is prepared from potassium perchlorate, Mg-Al alloy powder, strontium carbonate, phenolic resin, polyvinyl chloride, strontium nitrate, sulfur, glutinous rice flour, etc. Its advantages are simple preparing process, dual effect, multiple color and long perdurability.

The invention relates to a dual-effect well-cementing pad fluid using a suspending agent as a surfactant, and mainly solves problems that present well-cementing pad fluid is added with high-molecular polymer grade inorganic suspending agent which can influence compatibility and cement sheath cementation and thus influence sealing effect of well cementing and exploitation operation in a later stage. The dual-effect well-cementing pad fluid comprises the following components by weight parts: 12-20 parts of a flushing suspending agent, 0.2-1 part of an antifoaming agent, 0-420 parts of a weighting agent and 100 parts of water. The dual-effect well-cementing pad fluid using a suspending agent as a surfactant can eliminate adverse influences of inorganic soil and the high-molecular polymer in the well-cementing pad fluid on the compatibility and the cement sheath cementation, improve flushing and displacing effects on a drilling fluid, and guarantee quality of well cementing and the exploitation operation in the later stage.