10results about How to "Harden fast" patented technology

The utility model provides a kind of air jug automatic discharging device, it can overcome air jug sticking, direction random overturning and falling impact damage and other technical problems in production process, it includes vibration sequencing mechanism, directional material conveying mechanism and pneumatic posture adjusting mechanism, vibration sequencing mechanism includes the vibration disc of inclination arrangement, the width of the material inlet end of vibration disc is greater than the width of material outlet end, the length of the product detection sensor is matched in material inlet end with the width of material outlet end and cone air jug product;Directional material conveying mechanism includes at least one material conveying channel, and the material conveying channel is sequentially communicated by falling section, buffer section and horizontal conveying section;Pneumatic posture adjusting mechanism is arranged in falling section, and the posture of product is entered horizontal conveying section by the difference of the cross-sectional area of both ends of product with the directional airflow acting on cone air jug product.

The utility model relates to ancient tree famous and distinguished tree trunk hollow repair technical field discloses a kind of layered filling and solidification forming equipment for ancient tree famous and distinguished tree trunk hollow repair, including support base plate, mixing box, the right side position of support base plate top is fixed with mixing box, and the intercalation of front and back connecting plate is provided with pin, and the outside of the both ends of pin is connected with locking nut.The utility model passes through the position of feeding opening feeding, the filling material required is fed to the inside of mixing box, when not needing filling, two support seat can be adjusted to approach the outside position of second pipeline, then after the intercalation pin of connecting plate position, locking nut is locked position, to this end, the support of second pipeline tail end second nozzle position is facilitated, when needing to use, then locking nut can be removed, then after holding the outside of second nozzle, first bellow is used to stretch second pipeline, second nozzle finally carries out filling work, and the placing capacity for pipeline is facilitated.

The application discloses a shotcrete rebound-reducing agent and a preparation method thereof. The shotcrete rebound-reducing agent is prepared from the following raw materials in mass percentage: 15-30% of a quick-setting component, 2-5% of a viscosity-increasing component, 10-15% of a reinforcing component, 2-5% of an anti-freezing component, 1-4% of a stabilizer, and the rest of water; and the viscosity-increasing component is a combination of polyvinylpyrrolidone and modified carboxymethyl cellulose. The prepared shotcrete rebound-reducing agent has the advantages of good sprayability, high hourly strength, good anti-freezing and stability, and the like, can improve the working performance of shotcrete, reduce the content of a quick-setting agent and significantly reduce the rebound rate of shotcrete, and has good economic benefits.

A quartz crucible high-pressure slip casting process, the specific process steps are: model compaction - slurry pressurization - slip casting - heat conduction oil heating - green body stripping - model self-cleaning - crucible high-pressure slip casting process operation flow is completed.The forming process disclosed in the application has the advantages that the crucible high-pressure slip casting process is short in time, the crucible green body structure is uniform and compact, the inner and outer walls of the crucible are smooth, the crucible green body is rapidly hardened through the heating function of the model outside, demolding is convenient, and the forming efficiency is high.

The application relates to the technical field of concrete pavements, and discloses a reinforced material for concrete pavements and a use method thereof. The reinforced material comprises dry materials and wet materials. The dry materials are as follows: 200-400 parts of white cement clinker, 70-120 parts of modified mineral powder, 300-700 parts of tailing sand, 50-140 parts of lithium slag powder and 5-50 parts of pigment. The wet materials comprise component 1 and component 2. The component 1 is composed of 10-30 parts of nano silicon oxide sol, 10-20 parts of polyaluminum, 10-30 parts of sodium silicate, 5-20 parts of aluminum sulfate, 5-10 parts of urea and 100-300 parts of water. The component 2 is composed of 5-10 parts of glue powder, 5-10 parts of 3-aminopropyltrimethoxysilane and 80-90 parts of water. The dry materials are sprayed on the surface of the concrete by a spraying machine or are uniformly vibrated on the surface of the concrete by a vibrating screen, and the wet materials are sprayed on the surface of the concrete by a sprayer, and then are collected and smoothed, so that the problems of low strength, easy falling and alkali return of the traditional reinforced material are solved.

The application relates to a rapid-forming geopolymer concrete prefabricated component and a preparation method thereof. The technical scheme is as follows: 125-150 parts by mass of sodium metasilicate is mixed with 200-235 parts by mass of water to obtain a solution; the solution is stirred until it is clear, and is cooled to 5-15 DEG C to obtain an alkali activator; the alkali activator is mixed with 225-285 parts by mass of metakaolin, 60-120 parts by mass of fly ash, 400-600 parts by mass of fine aggregate and 550-850 parts by mass of coarse aggregate, is stirred, is poured, and is shaped for 10-30 min; demolding is carried out, and maintenance is carried out at normal temperature for 2-7 days to obtain the rapid-forming geopolymer concrete prefabricated component. The application has the characteristics of high solid waste resource utilization rate, short forming time, low maintenance cost and high mold flow efficiency, can be directly operated on a construction site and can be rapidly and continuously produced, and the prepared rapid-forming geopolymer concrete prefabricated component has early compressive strength.

The application discloses a portable two-walls-one-annulus full-process screen pipe complete hole sealing system in the field of exploration equipment and application thereof, and relates to the technical field of drilling equipment. The system comprises a drill bit, the outer side wall of the drill bit is provided with external threads, the drill bit is threadedly connected with a gas sampling pipe and a drill rod, the drill rod is sleeved outside the gas sampling pipe, a plurality of sampling holes are formed in the side wall of the gas sampling pipe, hole sealing bags are arranged at both ends of the gas sampling pipe, a grouting area is formed between the two hole sealing bags, and the hole sealing bag away from the drill bit is provided with a grouting pipe and a back grouting pipe and extends into the grouting area. A plurality of support pipes are fixedly connected to the side wall of the gas sampling pipe, the support pipes are in a hollow structure, the support pipes are filled with water-absorbing expansion materials, pressure relief assemblies are slidably connected to the inner walls of the support pipes, a plurality of release holes are formed in the side walls of the support pipes, and rupture marks are arranged on the release holes. In the initial state, the pressure relief assemblies abut against the water-absorbing expansion materials. The water-absorbing expansion materials in the cement slurry are expanded to fill the gaps generated by the hardening shrinkage of the cement slurry, so that the entry of external air or the leakage of gas is avoided.

The invention relates to sprayed concrete and a preparation method thereof, and relates to the technical field of concrete.The sprayed concrete is prepared from, by weight, 365-410 parts of cement, 790-830 parts of fine aggregate, 710-760 parts of coarse aggregate, 70-100 parts of fly ash, 75-95 parts of modified yellow phosphorus slag, 12-16 parts of accelerator, 4.5-7 parts of water reducer, 3-6.5 parts of natural plant admixture and 155-175 parts of water; the natural plant additive is prepared from beet root tubers and gelidium amansii in a weight ratio of (1-2): (5-9). On the basis of an existing shotcrete batching system, the natural plant admixture and the modified yellow phosphorus slag are introduced, all the components have a synergistic effect, the construction requirements for the initial strength and the later strength of the shotcrete are met, the rebound rate of the shotcrete is remarkably reduced, and the shotcrete has a good application prospect. The method can be widely applied to construction of various supporting projects such as tunnels and roadways.

The invention relates to the technical field of building materials, and discloses a novel anti-dispersion grouting material capable of adjusting setting time under a flowing water condition. The invention relates to a quick hardening iron aluminate cement mortar which is prepared from the following raw materials: quick hardening iron aluminate cement, silica fume, superfine fly ash, a modified inorganic thixotropic stabilizer, a composite setting time regulator, polycarboxylate superplasticizer powder, hydroxyethyl methyl cellulose, an organic silicon defoaming agent and the like. The dispersion resistance of the slurry in a flowing water environment is improved; the hydration rate is regulated by utilizing the synergistic effect of the boric acid powder and the trisodium citrate dehydrate powder, so that the technical problem that the setting time of the quick-hardening cement is difficult to control is solved; and in cooperation with the micro-grading filling effect of the mineral admixture, the high fluidity, high flowing water retention rate and high early strength of the slurry under the low water-binder ratio are achieved, and the slurry is suitable for grouting reinforcement in the complex underground flowing water environment.

The invention discloses fiber polymer titanium gypsum mortar and a preparation method thereof. The fiber polymer titanium gypsum mortar is prepared from the following raw materials in parts by weight: 40 to 60 parts of titanium gypsum, 40 to 60 parts of sand, 10 to 15 parts of alkaline additive, 0.5 to 1 part of sodium sulfate, 2 to 3 parts of quick lime, 0.1 to 3 parts of plant fiber, 1 to 2 parts of cellulose ether, 0.2 to 2 parts of water reducing agent, 1 to 5 parts of redispersible latex powder and 0.1 to 2 parts of retarder. The doped plant fiber raw material is wide in source, so that the impermeability and the crack resistance of the gypsum mortar are effectively improved, and meanwhile, the construction performance is improved. The titanium gypsum is only dried and does not need to be calcined, certain additives and plant fibers are added, the high-water-resistance gypsum mortar with the titanium gypsum as a main cementing material is obtained, an energy-saving and environment-friendly product with good mechanical properties is provided, and meanwhile the high-water-resistance gypsum mortar has the advantages of being low in production cost, wide in raw material source and good in water resistance.