272results about How to "Guaranteed repair effect" patented technology

The present invention belongs to a building mortar, and particularly relates to a mortar for concrete base surface repair, and a preparation method thereof. The mortar comprises the following raw materials by mass: 20-80 parts of silicate cement, 20-100 parts of sulphoaluminate cement, 80-190 parts of aggregate, 40-100 parts of a mineral admixture, 30-80 parts of an aqueous epoxy emulsion, 0.2-0.5 part of cellulose ether, 0.1-0.5 part of anti-cracking fibers, and 20-85 parts of water. The mortar of the present invention has characteristics of strong adhesion, excellent cracking resistance, excellent compression resistance, high bonding strength, and low price.

The invention relates to the technical field of contaminated soil remediation treatment, in particular to a metal contaminated soil remediation device which comprises a movable bottom frame, a soil scarifying part, a soil collecting and conveying mechanism, a soil spraying barrel assembly, a soil block crushing mechanism and a soil spraying mechanism. The metal contaminated soil remediation devicehas the beneficial technical effects that soil blocks and crushed soil can be screened, the crushed soil makes direct contact with a spraying agent and then is discharged, large soil blocks are ground into crushed soil and then make contact with the spraying agent and then are discharged, a spray head conducts rotary spraying, full contact with soil can be performed, and the remediation effect isguaranteed. The soil scarifying part is arranged at one end of the movable bottom frame and is in transmission connection with the movable bottom frame, the soil collecting and conveying mechanism isarranged on the movable bottom frame, one end of the soil collecting and conveying mechanism is located on one side of the soil scarifying part, and the other end of the soil collecting and conveyingmechanism is located above the soil spraying barrel assembly. The soil spraying cylinder assembly is arranged at the other end of the movable bottom frame, and the soil block crushing mechanism is arranged above the soil spraying cylinder assembly.

The invention discloses a soil remediation ecological moisturizing method based on efficient stirring. A solution mixing and effect-improving mechanism comprises a mixing cylinder, a bracket, a secondrotating motor, a stirring rod, a stirring frame, a shovel plate, a discharge pipe, a water stop valve, a charging barrel, a filtering barrel, a chain wheel, a chain, a rotating rod, an upper grinding block, a lower grinding block, a channel, a spiral feeding plate, a feeding pipe, a rotary vane, a filtering barrel, a water outlet and a water inlet pipe, the bottom end of the mixing cylinder is fixedly connected with a bracket, safe and convenient use is realized, a solution mixing and efficiency improving mechanism is arranged, the second rotating motor drives the stirring rod to rotate, andthe two rotating rods are driven to move and rotate through transmission of the chain wheels and the chains, so that the repairing agent is crushed through cooperation of the upper grinding block andthe lower grinding block, the repairing agent can be rapidly mixed with water, meanwhile, the rotary vane and the filtering barrel are matched to filter the water, impurities in the water are reduced, and the effect of the mixed repairing liquid is prevented from being affected by too many impurities.

The invention provides a fast maintenance method for a furnace lining of a deslagging surface of a converter. The fast maintenance method for the furnace lining of the deslagging surface of the converter is applied to the technical field of iron and steel smelting processes, and comprises the maintenance steps of deslagging the converter, and remaining high-temperature residual furnace slags in the converter; adding bar steel scraps having temperature difference with the residual furnace slags into the converter, precipitating and condensing high-melting-point mineral substances in the furnaceslags under the action of the temperature difference of the bar steel scraps and the residual furnace slags, and adhering to the deslagging surface of the converter so as to replace a fettling material; and statically cooling the converter, and after finishing cooling, accomplishing the fast maintenance operation for the furnace lining of the deslagging surface of the converter. According to thefast maintenance method for the furnace lining of the deslagging surface of the converter provided by the invention, no cost input of the fettling material is required, the problems of the adverse effect on fettling and the environment pollution due to too long or too short sintering time are avoided, the molten steel end point components are ensured, the fettling time is effectively shortened, the converter operability is improved, and meanwhile, the fast maintenance method for the furnace lining of the deslagging surface of the converter has the characteristics of fast maintenance speed, good fettling effect, low fettling cost, safety, environment protection and the like.

The invention relates to a laser cladding and on-line machining repair method for a roughing mill housing roller positioning groove, and belongs to the technical field of surface modification and equipment repair. Machining equipment comprises a 2500 movable boring and milling machine, an all-solid-state laser device, a mechanical hand, a manipulator, a pneumatic powder feeder, a self-made construction platform and the like. The technological process includes the steps of building the platform, leading in the equipment, adjusting, centering and fixing the equipment, performing rough machining, performing precision measurement for flaw detection, performing laser cladding, performing precision measurement for flaw detection, fine machining, performing precision measurement for flaw detection and tracking to verify the effect. The laser cladding and on-line machining repair method has the advantages that the equipment strength is not affected, hot stress influence during repair welding is avoided, while equipment accuracy is recovered, the outage time can be shortened, and the repair cost can be reduced; a metal base material can be effectively protected from abrasion or corrosion by selecting a repair material, the problem is prevented from occurring again, and the service life of the equipment is greatly prolonged; as only the surface of the base material is melt in a micro mode in the laser machining process, the area of a laser cladding heat affected zone is one tenth that of a heat affected zone of argon arc welding.

The invention discloses farmland soil pollution treatment equipment, which comprises a shell, a feed inlet, a liquid medicine box, a liquid inlet, a water pump, and support legs. A rotation shaft is arranged in the shell. Multiple stirring rods are arranged on the rotation shaft. The stirring rods are hollow and are communicated with the rotation shaft. Blowholes are distributed in the surfaces ofstirring rods. The right wall of the shell is fixedly connected to the liquid medicine box. A soil repairing agent is arranged in the liquid medicine box. A dual shaft motor is fixedly connected to the upper surface of the liquid medicine box. The soil is grinded by a driving shaft and a driven shaft to prevent the situation that the feed inlet is obstructed by soil; at the same time, the contactarea between soil and the soil repairing agent is enlarged, soil is fully contacted with the soil repairing agent, the soil repairing efficiency is improved; the soil repairing agent in the liquid medicine box is delivered into the shell by the water pump so as to mix the soil repairing agent with soil, when the soil is repaired, the soil is stirred so that the soil repairing agent and soil are more fully mixed, and the soil repairing efficiency is further improved.

The invention provides a magnetically-induced heating self-repairing thermoplastic nanocomposite material, and particularly provides a thermoplastic polymer product with the self-repairing function. The thermoplastic polymer product comprises a body and gamma-Fe2O3 nano-particles. The body is formed by a thermoplastic polymer. The gamma-Fe2O3 nano-particles are dispersed into the body. Accordingly, the gamma-Fe2O3 nano-particles induce the thermoplastic polymer body to complete the self-repairing function, the good chemical and mechanical performances are provided for the polymer product through the thermoplastic polymer body, and then the performance of the polymer product with the self-repairing function can be improved, so that the using effect of the polymer product is improved.

In order to solve the problems of high energy consumption, low treatment efficiency and low heat energy utilization rate in the prior art, the invention provides remediation equipment for non-volatile organic polluted soil. The remediation equipment comprises a rotary kiln, a cyclone dust remover, a soil pretreatment system, an oxidization reaction pool, an activated carbon adsorption tower and a chimney which are connected with one another through pipelines, wherein the upper end of the side wall of the cyclone dust remover is connected with the smoke outlet of the rotary kiln; the top of the cyclone dust remover is connected with the bottom of a treatment chamber of the soil pretreatment system through a pipeline; a gas collection cover of the soil pretreatment system is connected with a reaction pool of the oxidization reaction pool through a pipeline; a gas collection cover of the reaction pool is connected with the bottom of the activated carbon adsorption tower through a pipeline; and the top of the activated carbon adsorption tower is connected with the chimney through a pipeline. According to the remediation equipment, high-temperature smoke subjected to cyclone dust removal is used for pretreating the soil before cooling treatment, so that the moisture content in the soil is reduced, temperature of the soil is raised, and volatile organic pollution gas is separated out; and therefore, the heat carried by the smoke is recycled, and the heat energy utilization rate is increased.

The invention relates to a method for restoring a eutrophic tidal flat sediment habitat. The method comprises the following steps of: preparing bacteria solution; preparing stationary liquid; uniformly mixing and gelling the bacteria solution and the stationary liquid; preparing CaC12 solution; fixedly granulating the gelled bacteria solution; collecting and preserving; carrying out combined operation of plowing and environmental restoration bacteria immobilized particles; arranging shellfishes and clam worms; and regularly monitoring. The method disclosed by the invention is capable of effectively protecting bacterial strains and has the buffer function in an environment that physical and chemical factors are more severe; an effective vector can be provided for the bacterial strains, so that the bacterial strains have the bacteria restoration function effectively for a long time; by means of bioturbation of the shellfishes and the clam worms, the nitration and denitrification effects of sediments can also be effectively increased; and in addition, by means of combined use of the above methods, the method has good environment-friendly value and market application prospect to environmental restoration.

The invention discloses farmland pollution remediation equipment and a method. The equipment comprises a rack, a control compartment, an agent box, a liquid box, a conveying device, a lifting device I, a lifting device II, a stirring device I and a stirring device II, wherein the lifting device I and the lifting device II are fixed on the rack; the control compartment, the agent box, the liquid box, the conveying device, the stirring device I and the stirring device II are arranged at the upper part of the rack; and a front wheel and a rear wheel are arranged at the bottom of the rack. The equipment achieves mechanical and automatic operation of farmland remediation to the greatest extent, so that the operation efficiency and operation precision are improved; the labor is saved; the cost is lowered; the method for farmland pollution remediation with the equipment achieve permanent settlement of pollutants in polluted soil of a farmland and ensures remediation effect and timeliness.

The invention discloses an intelligent integrated soil remediation device and method. The output ends of a crushing and screening system, a stepwise remediation material putting system and a liquid putting system of the device are all connected with the input end of a uniform mixing and stirring system, the output end of the uniform mixing and stirring system is connected with the input end of theuniform mixing and stirring system, and the output end of the uniform mixing and stirring system is connected with a discharging system. The remediation method comprises the operation steps of 1, determining remediation materials which need to be put and the water volume; 2, calculating the use quantity of the required remediation materials and the use amount of liquid; 3, starting all the systems; 4, putting soil in the crushing and screening system so that the soil can be uniformly mixed with the remediation materials, the liquid material or water for a reaction, and conveying the remediated soil to a maintenance area for maintenance; 5, conducting sampling detection on the remediated soil, and completing remediation when the soil is detected to be qualified. By means of the device andmethod, efficient curing/stabilizing remediation of heavy-metal-polluted soil, solid waste, sludge and other materials can be achieved, and the device and method have a good remediation effect on heavy-metal compound pollution soil.

The invention relates to an underground self-propelled type high-pressure grinding air jet drilling repairing device and a method. The device comprises a high pressure air part, a drill bit and a hose, wherein the drill bit comprises a shell, an air inlet, a jetting nozzle, a mixing chamber, a rotator and a prepositioned nozzle; a rotating chamber is arranged in the rotator; the high pressure air part is communicated with the air inlet through the hose; a post-positioned nozzle is arranged at the head end of the shell; a suction channel is penetrated through a side wall of the shell; an impeller is arranged in the rotating chamber. The method comprises the following steps: 1) preparing high pressure air; 2) inputting the high pressure air to the air inlet of the drill bit; 3) spraying the high pressure air from the jetting nozzle; 4) causing the high pressure air and the coal dust act on the impeller; 5) utilizing the high pressure air to drive the coal dust to discharge from the impeller and then spraying the coal dust from the prepositioned nozzle; 6) completing the operation. According to the device and the method provided by the invention, the repairing for collapsed hole and blocked hole can be realized; higher coal breaking impact force can be acquired; the repairing for the drilling hole is benefited; the use efficiency of the drilling hole is increased.

The invention provides a wetland restoration enclosing device based on a comprehensive protection structure. The device comprises a main support column, an auxiliary support column, a self-rotating type wetland restoration liquid spray nozzle structure, fixed plates, a quick-release movable enclosing net structure, a wetland water level monitoring moving ball structure, fixed pieces, movable boltsand nuts, a comprehensive protective stretching wind and sand resistance net structure, a connecting base, a fixed liner, a rotating rod, a telescopic pipe, an adjusting bolt and buried cones, and the main support column longitudinally passes through the fixed plate to be installed on the right side of the self-rotating type wetland restoration liquid spray nozzle structure. Accordingly, by arranging a connecting pipe head, a swivel pipe joint, a liquid discharge pipe and a restoration nozzle, according to the wetland restoration requirements, an external restoration pipeline is connected through the connecting pipe head, and by means of multi-position rotation of the swivel pipe joint, restoration liquid can be sprayed to wetland through the liquid discharge pipe by passing through the restoration nozzle conveniently, so that liquid pesticide restoration function of the wetland is achieved, and the wetland completeness is increased.

The invention discloses a repairing device for an urban underground drainage pipeline. The repairing device includes a disk-shaped horizontal plate, a horizontal column and a capacity box fixedly sleeving the horizontal column, a clearing device for clearing impurities on the inner wall of the pipeline is installed on the horizontal plate, and the side wall of the capacity box is fixedly connectedwith a repairing mechanism for repairing the underground drainage pipeline. The invention further provides a repairing method of the urban underground drainage pipeline. The repairing method includesthe following steps that S1, a body of the repairing device is placed in the underground drainage pipeline; and S2, the height of a telescopic rod on the horizontal plate and a limiting pin and a pinhole on a sleeve and a hollow pipe are adjusted to adjust the heights of a brush and an arc-shaped block. According to the repairing device and method for the urban underground drainage pipeline, theinner wall of the pipeline is cleared and then cleaned through a cleaning device, the pipeline repairing effect is ensured, through arrangement of a motor, the repairing mechanism can be driven to rotate to make pipeline repairing more uniform, the clearing height and repairing height can be adjusted by the clearing device and the repairing mechanism, and the repairing device is suitable for drainage pipes with different pipe diameters and sizes.

The invention relates to a method for repairing the scratch of an automobile hub. The steps are simple, convenient and easy for realization, and no professional skills are needed; the repair of the scratch on the automobile hub can be realized by sanding of sand paper, scraping of a mixture and spraying of hub refinishing paint; the integral repair effect is good and the integral cost is low.

The invention discloses efficient soil crushing treatment equipment. The equipment comprises a machining box, supporting legs are symmetrically arranged on the left side and the right side of the processing machining box, and supporting sleeves are arranged at the lower ends of the supporting legs in a sliding mode; and rolling wheels are arranged at the lower ends of the supporting sleeves, wherein the rolling wheels facilitate carrying of the equipment, buffering springs are arranged in the supporting sleeves, and the buffering springs are used for connecting and fixing the supporting sleeves and the supporting legs. According to the efficient soil crushing treatment equipment, carrying is convenient, and the anti-seismic property is good; materials are subjected to circumferential crushing, and then are screened through filter cylinders, so that the size of the material is qualified when the materials are repaired, and the materials is fully contacted with repairing liquid in the later period; then the screened materials upwell along a lifting cylinder through a lifting blade, are scattered along dispersing buckets under the action of centrifugal force and are struck to the inner walls of fences; and conical blocks at water spraying ports also help to further scatter the materials, so that the materials are in full contact with the repairing liquid, the material repairing effect is guaranteed, and practicability is high.

The invention discloses a remediation method of chromium-contaminated soil. The method comprises the following steps: (1), detecting the chromium contamination condition of soil, and determining a concentration distribution rule of hexavalent chromium in the chromium-contaminated soil; (2), with the soil layer depth with the hexavalent chromium transverse concentration distribution of 800-1300mg/kg as a boundary, distinguishing severe chromium-polluted soil from mild chromium-polluted risky soil; (3), stripping the severe chromium-contaminated soil, performing ex-situ remediation on the severechromium-contaminated soil, and performing in-situ remediation on the risky soil; (4), backfilling the remediated severely chromium-contaminated soil onto the remediated risky soil, adding humic acid, performing plowing, and planting plants capable of enriching chromium; (5), regularly harvesting, removing and reseeding plants capable of enriching chromium, and detecting the total chromium content above the boundary for at least 6 months; and (6), determining that the concentration of hexavalent chromium on the surface soil of the chromium-contaminated soil meets the restoration target concentration, and if the detection result is unstable, repeating the (5) until the detection concentration reaches the standard.