54results about How to "Applicable repair" patented technology

The invention discloses a lead-cadmium compound conditioner for rice field soil as well as preparation and application methods of the lead-cadmium compound conditioner. The conditioner is composed of the raw materials in mass fractions: 30-50% of calcium carbonate, 5-10% of hydroxyapatite, 20-30% of sepiolite and 20-30% of zeolite; the preparation of the conditioner comprises the following steps of: weighing various raw materials according to the mass fractions of the components of the lead-cadmium compound conditioner; continuously stirring the various raw materials in a stirring device for at least 30 min, and thoroughly stirring and evenly mixing all the materials; and the method of application of the conditioner comprises the following steps of: (1) analyzing the total quantity of lead and cadmium in the rice field and the content of lead and cadmium in exchange state; (2) determining the pollution level of the rice field soil by using an evaluation model; (3) applying the lead-cadmium compound conditioner according to the lead-cadmium pollution level in the rice field, and applying the lead-cadmium compound conditioner to the slightly polluted rice field at 100-150 kg / mu, to the mildly polluted rice field by 150-300 kg / mu and to medium-polluted rice field at 300-600 kg / mu, and balancing and stabilizing for 10-15 days; and (4) analyzing and measuring the content of lead and cadmium in exchange state in the rice field, and if the fixed rate is lower than 90%, additionally applying the conditioner at 100-150 kg / mu.

The invention discloses a polymer cement mortar for quick repair of concrete and a preparation method thereof, and the polymer cement mortar comprises the following components: 15-25% of cement; 40-60% of quartz sand; 5-10% of limestone powder; 6-12% of polymer emulsion; 0.03-0.06% of a defoaming agent; 0.5-1% of a powder water reducing agent; 0.6-0.9% of iron powder; 0.03-0.12% of a coagulation accelerator; 0.05-0.15% of polypropylene fiber; and balance of water. The method can significantly improve the hydration rate of the polymer cement mortar for quick repair of concrete, reduces the shrinkage rate of the polymer cement mortar for quick repair of concrete, also can improve the bonding strength of the polymer cement mortar for quick repair of concrete with old concrete, the mechanical and construction performance and durability in cold environment of the polymer cement mortar for quick repair of concrete can be improved, and the polymer cement mortar for quick repair of concrete is particularly suitable for quick repair of high speed railway reinforced concrete structures.

The invention discloses a remediation reinforcement device and method for emergency rescue of an anti-slide pile side slope, and belongs to the field of roads and bridges. The shear resistance index of a soil body can be quickly increased, the side slope can be quickly stabilized in the early stage of danger, the cost is reduced, and the roads are ensured to be in normal operation. The remediationreinforcement device includes anti-slide piles, deformation monitoring steel pipe piles, a miniature steel pipe pile group and inter-pile earth-retaining plates, the anti-slide piles are inserted into an original sliding surface, the anti-slide piles are inserted into the deformation monitoring steel pipe piles to monitor the deformation of a rock stratum or the soil body, the miniature steel pipe pile group is arranged on the front side of the anti-slide piles, and a pile top platform is arranged at the top of the miniature steel pipe pile group; and the inter-pile earth-retaining plates arearranged between the adjacent anti-slide piles, and the inter-pile earth-retaining plates are anchored in a bedrock stratum.

The invention discloses a bacterial strain and complex microbial agent for bioremediation of petroleum polluted water, and a preparation method and application of the agent. The invention particularlydiscloses Pseudomonas putida which is used for bioremediation of petroleum and petroleum product pollution. On one hand, the invention discloses a complex microbial agent A. The complex microbial agent takes the Pseudomonas putida as an active core, is supplemented with bacillus pumilus, bacillus subtilis and bacillus licheniformis, greatly increases the petroleum hydrocarbon degradation rate through a synergistic effect, and has the application potential of efficiently repairing petroleum and petroleum product pollution. On the other hand, the invention discloses a complex microbial agent Bwhich comprises the Pseudomonas putida, and Nitrosomonas europaea and Nitrobacter winogradsky with a nitrification function, synergistically degrades petroleum and petroleum products, and increases the ammonium nitrogen removal rate at the same time.

The present invention relates to emulsified asphalt modified by adopting water-base epoxy resin. It is characterized by that it utilizes water-base epoxy resin emulsion and solidifying agent to modify the emulsified asphalt, in which the general emulsified asphalt content is 100 portions, water-base epoxy resin emulsion content is 3-15 portions and the solidifying agent content is 20%-25% of water-base epoxy resin emulsion content.

The invention relates to a high-temperature-resistant modified asphalt pavement repairing material and a preparation method thereof. The material is prepared from the following substances in parts bymass: 76-96 parts of matrix asphalt, 15-20 parts of a grafted SBS modifier, 1-5 parts of polyphosphoric acid, 4-9 parts of a tackifier, 3-6 parts of a stabilizer and 4-6 parts of an anti-aging agent,wherein the grafted SBS modifier is prepared from SBS and a coupling agent through a coupling reaction. The preparation method comprises the following steps of: burning the solid matrix asphalt into aliquid state, weighing the liquid matrix asphalt, the grafted SBS modifier and the polyphosphoric acid according to the parts by mass, mixing liquid matrix asphalt, the grafted SBS modifier and the polyphosphoric acid in a modification system, and stirring at the speed of 800-1000r / min for 15 minutes at the temperature of 180 DEG C; then increasing the stirring speed of the modification system to1500-2000r / min, and adding the tackifier, the stabilizer and the anti-aging agent at the same time; finally, increasing the temperature of the modification system to 240 DEG C, and conducting stirring development for 2h to obtain the modified asphalt pavement repairing material which is resistant to high temperature and long in service life.

The invention discloses a traditional Chinese medicine composition for treating epidermis injury and a preparation method thereof. The composition is prepared from more than thirty traditional Chinese medicines in certain ratio and the more than thirty medicines are namely poison nut, catechu, platycodon root, radix trichosanthis, mongolian dandelion herb, lycopodium clavatum, excrementum pteropi, myrrh, herba houttuyniae, callicarpa bodinieri and the like; the preparation method comprises the following steps: smashing the raw materials, decocting and condensing the raw materials to obtain a traditional Chinese medicine extract. The traditional Chinese medicine composition provided by the invention has the functions of stimulating the circulation of the blood to relax muscles and joints, promoting blood circulation to remove blood stasis, diminishing inflammation and pain stopping and is suitable for treating pain and swelling caused by epidermis injury and repairing cells; the traditional Chinese medicine composition prepared by adopting the method can quickly repair worn epidermal cells, quickly diminish swelling and stop pain and effectively improve clinical signs and symptoms of a patient in a shorter period of time; the traditional Chinese medicine composition is small in toxic or side effects, can be directly absorbed and utilized by the skin through skin permeation, quickly takes effect, has mild taste, is suitable for people with various skin types, has no allergic response and is convenient to prepare and use and stable in curative effect.

The invention provides an integrated device for heavy metal contaminated soil remediation and leacheate recycling. The integrated device comprises a leaching tower, a sedimentation basin, a water suction pump, an electrochemical reactor, a circulating pump and a liquid reservoir, all of which are orderly connected into a loop through communicated pipes; the device is capable of effectively removing heavy metals in soil; the leacheate can be recycled after electrochemical treatment; the device is high in remediation efficiency, low in running cost, simple in structure, high in applicability, free of noise and small in floor area. The invention also discloses a corresponding method which comprises the steps of soil leaching, sedimentation and electrochemical treatment, all of which circularly circulate; the method is capable of effectively removing heavy metals in soil and few in leaching times; the leacheate is high in circulating leaching efficiency after electrochemical treatment; secondary pollution is avoided, and aftertreatment of the leacheate is avoided, so that the treatment cost is reduced; the method is simple and the process of the method is easy to control. The integrated device and the method are applicable to remediation of heavy metal contaminated soil and leacheate recycling.

The invention discloses a laser cladding device for repairing a rolling mill housing. The device comprises a laser cladding unit and a gantry type linear module, the laser cladding unit comprises a laser emitter, a laser cladding processing head and a powder feeder; the laser emitter is connected with an output optical connector of the laser cladding processing head through a transmission opticalfiber. The laser cladding processing head is used for emitting laser emitted by the laser emitter through the laser cladding processing head. The powder feeder is connected with a powder feeding channel of the laser cladding processing head through a powder feeding pipe and used for conveying cladding powder into a molten pool of a light spot irradiation area to achieve laser cladding processing during laser irradiation. The laser cladding processing head is mounted on the linear module; the linear module is fixed to a to-be-repaired area on the rolling mill housing, the laser cladding machining head is made to right face the to-be-repaired area on the rolling mill housing, and the linear module drives the laser cladding processing head to linearly move in multiple directions relative to the surface of the rolling mill housing so as to adjust the position of the laser cladding processing head relative to the to-be-repaired area of the rolling mill housing.