90results about How to "Efficient filling" patented technology

The invention discloses a data prediction method based on a kernel regression primary function Bayesian dynamic linear model, and belongs to the technical field of bridge structure health prediction. A to-be-analyzed bridge is detected by using a structural health monitoring system (SHM), and a time series dynamic model KR-BDLM of a Bayesian dynamic linear model is established to describe a bridge structure strain response changing along with time, so that bridge structure health monitoring data prediction and missing value filling are realized; performing parameter optimization reasoning on parameters of the KR-BDLM model by adopting a maximum likelihood algorithm; providing a time-varying state parameter and an observation prediction value of a bridge structure through the optimized KR-BDLM model, and further realizing SHM monitoring data single-step prediction; and multi-step prediction is carried out on the basis of single-step prediction, so that longer-time prediction of bridge data is realized. The prediction result is high in precision, the engineering structure safety can be effectively guaranteed, and the leading-edge development of the structure health monitoring field is promoted.

The invention provides a novel coal mining method for an open-air well-to-well worker. The novel coal mining method comprises the following steps: stoping by a slope coal mining machine; filling a mining cave, determining a filling process, selecting one of pumping filling, waste rock throwing machine filling or side upper part drill hole conveying filling in the filling process, and selecting filling materials according to a ratio of waste rock to concrete; carrying out slope stability calculation and analysis and slope monitoring, and carrying out mechanical analysis and calculation by adopting a limit equilibrium method and a finite element method. The invention provides a mining process system and complete equipment, including automation of coal mining and transportation, realization of automatic operation and connection of coal, mining and transportation equipment, improvement of coal mining efficiency and efficiency of a filling system, and realization of key technologies and processes of efficient paste filling, and provides an overlying strata stability monitoring control technology and equipment. The intelligent mining site is realized, the scientific and reasonable cooperation of mining, filling and slope stability monitoring is realized, and the connection is orderly and efficient.

The invention discloses a sulfide solid electrolyte based on ionic liquid electrowetting modification and application thereof. The preparation method of the electrolyte comprises the following steps: preparing a sulfide electrolyte into an electrolyte sheet, and coating the surface of the electrolyte sheet with an ionic liquid to form an ionic liquid film, thereby obtaining the electrolyte sheet containing the ionic liquid film; and placing the sulfide solid electrolyte between electrode plates which are arranged in parallel to assemble a parallel-plate capacitor, and applying a direct-current signal to carry out electrowetting treatment, thereby obtaining the sulfide solid electrolyte based on ionic liquid electrowetting. The specific ionic liquid is introduced into the interface of the sulfide solid electrolyte and the negative electrode for electrowetting treatment, so that the interface contact angle is effectively reduced, the interface wettability is improved, the interface impedance is reduced, the electrochemical performance of the all-solid-state battery is improved, and the cycle life of the all-solid-state battery is prolonged. The method particularly focuses on the use of imidazole and pyridine ionic liquids, and selects the appropriate ionic liquid for the lithium metal negative electrode material to realize the optimal interface modification effect.

The invention belongs to the field of thin films, and particularly discloses an atomic layer deposition method and a thin film prepared through the atomic layer deposition method. According to the deposition method, the reaction cavity, the two input pipeline systems, the outlet valve and the vacuum pump in the atomic layer deposition system are used for controlling precursor pulse deposition and inert gas purging conditions in the atomic deposition process, and the film deposition state is improved; the efficiency of purging and removing substances and impurity residues such as a precursor and a reaction product thereof is improved, the problem that the quality of a deposited film is affected by the impurity residues in a reaction system or on the surface of a sample in the film deposition process is avoided, the uniformity and compactness of film deposition and the coverage rate and conformal rate of a film on the surface of a base material hole are improved, the defects of the film are reduced, and the yield is improved. And the method can be applied to a substrate with a high aspect ratio structure to deposit the film, so that the purpose of manufacturing a large-size complicated special-shaped structure device is achieved.

The utility model is applicable to the technical field of vegetable seedling raising, and provides an automatic substrate filling device for a planting plate for vegetable seedling raising, which comprises a base, and a rack is fixedly mounted at the top of the base; the stock bin is used for containing a matrix for vegetable seedling raising, and the bottom of the stock bin is fixedly communicated with a filling pipe; the collecting hopper is arranged on the base, and a placing seat is arranged in the collecting hopper; the placement seat is provided with a planting disc used for receiving and containing a matrix; and the adjustable trowelling plate is used for trowelling the matrix in the planting plate and is arranged in the collecting hopper. According to the automatic substrate filling device of the planting plate for vegetable seedling culture, provided by the scheme, the efficient and uniform filling of the substrate is realized by integrating the automatic discharging mechanism and the stirring and blending mechanism; and the problems of low efficiency and non-uniform filling in a traditional manual filling mode are also solved.

The invention provides bentonite for compound anti-seepage drilling mud as well as a preparation method and application thereof, and the method comprises the following steps: respectively airing and coarsely crushing bentonite raw ore and attapulgite raw ore to obtain bentonite coarse ore and attapulgite coarse ore; the bentonite coarse ore and the attapulgite coarse ore are subjected to drying, grinding, impurity removal and sieving respectively, and bentonite ore powder and attapulgite ore powder are obtained; the preparation method comprises the following steps: mixing bentonite mineral powder, attapulgite mineral powder, a tackifier and water in parts by mass, and stirring to obtain compound clay ore pulp; the compound clay ore pulp is subjected to standing curing treatment and heating treatment, and the compound anti-seepage drilling mud is obtained. The bentonite for the compound anti-seepage drilling mud is high in viscosity, low in filter loss and capable of effectively meeting the requirements of the drilling mud after being subjected to high-temperature reaction, and meanwhile the preparation method is simple in process, low in production cost, rich in raw material and easy to produce and use in a large scale.

According to the post-grouting expanded-base composite tubular pile and the construction method, an expanded-base technology and a post-grouting technology are combined, pile end post-grouting can efficiently fill pores of an expanded-base part, the strength and compactness of a pile end soil body are remarkably enhanced, the bearing performance of a pile foundation is improved, meanwhile, the settlement amount of the pile foundation is effectively reduced, and the construction efficiency is improved. The stability and the safety of the building in the long-term use process are ensured; a technical solution; comprising a grouting pipe, a prefabricated tubular pile and a composite pile outer wrapping body. The grouting pipes are symmetrically arranged in the prefabricated tubular pile in the axial direction, the outer sides of the grouting pipes are wrapped with water stop adhesive tape, and the length of the grouting pipes is larger than that of the prefabricated tubular pile. A composite pile wrapping body is arranged on the outer side of the prefabricated tubular pile, the prefabricated tubular pile is in a cylindrical shape, the upper portion of the composite pile wrapping body is also in a cylindrical shape, and the lower portion of the composite pile wrapping body is in a circular truncated cone shape.

The invention relates to a submersible hydroelectric generator device (1) comprising a substantially upright body having an outer chamber (9) and an inner pressure chamber (7). The inner pressure chamber (9) has a pressurizable fluid supply therein, and the outer chamber (9) has a charge inlet (21) adjacent to the top of the upright body, a discharge outlet (11) adjacent to the bottom of the upright body, and a liquid passage having a turbine (25) and a flow regulator (27) mounted therein. An auxiliary pressurized fluid supply is provided to replenish the pressurizable fluid supply. A pressure regulator is provided that is operable to control delivery of the auxiliary pressurized fluid from the auxiliary supply to the inner pressure chamber to maintain the pressure of the pressurizable fluid supply at or above a predetermined pressure level during drainage of water from the apparatus. In this way, water will be discharged from the device in a rapid, repeatable manner.

The present application provides a sponge-filled automobile tire and a manufacturing method thereof, comprising a tire body and a sponge block; the tire body is provided with a through hole for passing through a hub, and a cavity is arranged in the tire body and communicates with the through hole, and the sponge block is inserted into the cavity; the sponge block is provided with a through opening, and a cloth sleeve is sleeved on the outer wall of the sponge block outside the through opening. The present application utilizes the design of the cloth sleeve, the cloth sleeve is sleeved on the outside of the sponge block, when the sponge block is filled into the cavity, the cloth sleeve on the outside of the sponge block is bonded with the glue sprayed on the inner wall of the cavity, avoiding the case that the sponge block is directly bonded inside the cavity, when the tire body is punctured, the cloth sleeve is separated from the tire body, so that the sponge block can be disassembled, which facilitates the disassembly of the sponge block, and avoids the case that the sponge block and the tire body are bonded and broken during disassembly of the sponge block, part of the sponge block is left in the cavity, which causes inconvenience in cleaning and repairing the tire body.

The utility model discloses a double-station cosmetic processing and filling device which comprises a base, a container tank and a control module, and a spray head assembly is arranged above the base; the nozzle assembly comprises a nozzle body and a telescopic motor; the telescopic motor is connected with the base through the vertical frame; a moving plate is arranged between the base and the spray head assembly; a left-right driver is arranged between the movable plate and the base; placing plates are arranged above the moving plate in a left-right opposite manner; a rotary driver is arranged between the placing plate and the moving plate, and a plurality of assembling grooves which are uniformly distributed in the circumference are formed in the surface of the placing plate; a detachable bearing disc is arranged on the placing plate, a convex part is arranged on the lower surface of the bearing disc, and a placing groove is formed in the convex part; and a suction pump connected with the spray head body is arranged on the container tank. According to the cosmetic box taking and placing device, accurate filling of cosmetics can be carried out while the cosmetic boxes are taken and placed, all the cosmetic boxes on one station placing plate can be taken and placed at a time, and the cosmetic box taking and placing device has the advantages of being convenient to operate, efficient and accurate in filling, low in cost and the like.

The utility model relates to photoresist production auxiliary equipment technical field, concretely relates to an insulating carbon black storage device for photoresist, including storage box, the top of storage box is connected with feed inlet, the first solenoid valve is installed in the communication of feed inlet and storage box, the output port department of storage box bottom is provided with the second solenoid valve, still including fixed mounting on the turbine molecular pump of storage box outer side wall, the output end of turbine molecular pump is connected with the air cylinder of fixed mounting in the outer side wall of storage box, the top lift sliding of air cylinder is inserted with nitrogen tube, the output end of nitrogen tube is inserted to storage box, and is equipped with one -way exhaust valve, the utility model discloses nitrogen tube height is adjusted dynamically through lift cylinder, makes it always close carbon black material surface, and nitrogen fills the space not being occupied by material directly, and replacement efficiency improves 30% or more, and nitrogen consumption reduces 20%-40%, and turbine molecular pump provides high -purity nitrogen delivery, prevents the back flow in combination one -way exhaust valve, ensures the inert environment of fast establishment.

The application discloses a mural reinforcing protective agent and a preparation method and application thereof, belongs to the technical field of cultural relic restoration, and can solve the technical problems that existing mural reinforcing materials cannot reinforce the lower layer structure of ancient murals and are prone to being attached to the surface of murals to cause the whitening of the surface pigments. The mural reinforcing protective agent comprises a bacterial cellulose carrier and Ba(OH)2 nanoparticles loaded on the bacterial cellulose carrier in situ. The application plays a reinforcing role on the lower layer structure of murals, realizes deep reinforcement of ancient murals, improves the protection effect, stability and durability, and the surface of the mural will not be whitened.

The utility model relates to the technical field of tank car filling metering, in particular to a low-temperature liquid tank car filling metering device. According to the technical scheme, the filling metering device for the low-temperature liquid tank car comprises a plug, an inner fixing plate, a tank and an outer fixing plate, a window is formed in one end of the tank, the outer fixing plate is installed in the window of the tank, the inner fixing plate is installed at the position, corresponding to the outer fixing plate, of the interior of the tank, and the plug is connected with the inner fixing plate. The inner fixing plate and the outer fixing plate are locked and fixed through bolts, a tuning fork type liquid level meter is installed on the outer fixing plate, a measuring head is arranged at the end, located in the tank, of the tuning fork type liquid level meter, and a controller is arranged at the end, located on the outer side of the tank, of the tuning fork type liquid level meter. The problem that the filling weight is overloaded due to the fact that the mechanical liquid level meter is jammed and frozen to death can be effectively solved, and the safety and the accuracy of the filling process are guaranteed.

The present application relates to the field of composite ceramics, and aims to provide a new B4C-cBN composite ceramic with good mechanical properties and thermal conductivity, and a preparation method thereof, which comprises the following steps: S100, mixing boron carbide 5-9 parts, cubic boron nitride 1-5 parts and sintering additives to obtain a mixture; S200, obtaining the B4C-cBN composite ceramic through a sintering process; the sintering temperature is 1400-1550 DEG C; the sintering pressure is 4.9-5.5 GPa; and the sintering time is 1-3 h. The reason why aluminum and cobalt are selected as sintering additives is that the melting point of aluminum is low, and a liquid phase formed in the sintering process can effectively fill the pores through capillary action, thereby promoting the sintering process. Aluminum reacts with cubic boron nitride to form aluminum nitride, which can inhibit the conversion of cubic boron nitride into hexagonal boron nitride. Cobalt has oxygen affinity and can play a purifying role of "deoxidation and degassing", thereby reducing pores, improving density and improving the sintering performance of the composite ceramic. The optimal raw material ratio and sintering parameters are determined, so that the mechanical properties and thermal conductivity of the composite ceramic are both excellent.

The embodiment of the invention relates to the technical field of oil and gas reservoir engineering, and discloses an online filling and reporting method, system and device for oil and gas data and a storage medium. The method comprises the steps that corresponding data filling and reporting tables are generated according to different oil and gas data; a corresponding storage process is set for each data filling table, so that each kind of oil and gas data is automatically and structurally stored in a database according to the corresponding storage process; managing the filling permissions according to the user attributes, and associating the filling permissions corresponding to the user attributes with the data filling table; and when data filling is carried out, according to the filling permission corresponding to the attribute of the currently logged-in user, matching a corresponding data filling table for the currently logged-in user to fill. By utilizing the exemplary embodiment of the invention, the difference between the stored data and the original data can be quickly compared, the error checking and correcting cost is greatly reduced, and finally, the safety management, efficient storage and high-quality filling of the data are realized.

The invention discloses a large LNG storage tank pearlife field expansion filling construction method which comprises the steps that an expansion furnace, a dust remover, a pneumatic conveying device and other equipment are installed on a construction field, perlite raw ore sand is transported to the construction field to be subjected to expansion treatment, and a cold insulation layer of a storage tank is filled with expanded pearlife through the pneumatic conveying device; and a good effect can be achieved. The on-site expansion filling method achieves synchronous operation from machining to filling, and the construction period is greatly shortened. Loss and damp risks of materials in the transportation and storage process are reduced, and the overall construction cost is reduced. The pneumatic conveying device is adopted for filling, the situation that gaps or uneven accumulation occurs in the pearlife filling process is effectively prevented, it can be guaranteed that the pearlife is evenly distributed in a cold insulation layer of the storage tank, the cold insulation effect is improved, dust pollution to the environment is reduced, and construction safety is improved.

The utility model discloses an auxiliary fixture for positioning and assembling a motor stator, which belongs to the technical field of motor assembling, and comprises a movable frame, a support piece arranged on the movable frame, an adjusting disc movably arranged on the movable frame and used for adjusting the position of the support piece, and a positioning mechanism arranged on the adjusting disc, the positioning assembly is arranged on the adjusting disc, is used for adjusting the position of the supporting piece, and comprises guide rods which are arranged on the adjusting disc in an equal-angle sliding manner; and the guide assembly is arranged on the guide rod, is used for guiding the stator and the shell, and comprises a guide plate fixedly arranged at the end part of the guide rod, and an air bag used for gap filling is arranged on the upper side of the guide plate, so that the accuracy during equipment assembly is further improved, and the condition of deviation or different spacing in the assembly process is prevented.

This invention discloses a synchronous grouting material for high-water-pressure ultra-large shield tunnels and its preparation method, belonging to the technical field of cement-based materials. The synchronous grouting material for high-water-pressure ultra-large shield tunnels consists of two components, A and B. Component A is cement slurry, including cement, bentonite, highly active mineral admixtures, viscosity modifiers, stabilizers, and water; component B is a water glass solution. The volume ratio of component A to component B is 10–13:1. The synchronous grouting material of this invention has good water dispersibility, slow gel time, fast setting time, and high water erosion resistance. The gel time and setting time of the slurry are controllable and adjustable, avoiding slurry blockage and quickly and effectively filling the gap between the tunnel segments and the surrounding soil. Simultaneously, the slurry exhibits good cohesion in water-rich environments and is not prone to segregation and dispersion, meeting the performance requirements of synchronous grouting materials for high-water-pressure, ultra-large-diameter shield tunnels.

The application discloses a pre-splitting anchor injection deformation control structure and method for high ground pressure rock roadway excavation, which comprises a roadway penetrating in a rock mass, two pre-splitting rock zones symmetrically arranged on the two sides below the roadway, the pre-splitting rock zones being arranged along the length of the roadway, the pre-splitting rock zone being a rock zone full of gravel and densely distributed cracks, the side wall surface of the roadway being sequentially provided with a concrete wall protection layer and a concrete anchor spraying layer, and a plurality of high-strength anchor rods, a lower arch part anchor cable, a high-pressure grouting anchor cable and an arch nest reinforcing grouting anchor cable being perpendicularly arranged in the inner wall of the roadway and extending into the rock mass, the application combines roadway support reinforcement and roadway blasting pressure relief two roadway reinforcement means, the pre-splitting rock zone is advanced along with the advancing face construction in the construction process, the influence of pre-splitting rock zone construction on support is avoided, the design of the arch nest reinforcing grouting anchor cable can secondarily reinforce the integrity and effectiveness of the roadway support system, and the method can make the roadway omit conventional steel support and other measures.

The utility model relates to the technical field of automobile connectors, in particular to an automobile connector with waterproof performance, which comprises a connecting wire, a main body mechanism is fixedly arranged at one end of the connecting wire, and a rotating thread fixing sleeve and a T-shaped thread hollow column are hermetically connected. Water can be effectively isolated through the connection mode among the first U-shaped installation shell, the second U-shaped installation shell, the T-shaped threaded hollow column, the threaded fixing sleeve and the T-shaped protection shell. Through the design that both the sealing rubber ring and the annular rubber ring are made of water-swelling water-stopping rubber materials, water can be effectively absorbed, the inner space of the automobile connector with the waterproof performance can be filled, water is prevented from entering the automobile connector with the waterproof performance, the automobile connector with the waterproof performance is convenient to install, and the waterproof performance of the automobile connector with the waterproof performance is improved through the combined design that the sealing rubber ring and the annular rubber ring are made of water-swelling water-stopping rubber materials. And the waterproof capability of the automobile connector is improved.

The utility model belongs to reagent filling automation equipment technical field discloses a kind of automatic canning machine for reagent filling, including base frame, index transmission system, filling unit, capping unit and gas-electricity integrated system, base frame is by bottom support cabinet and frame skeleton welding structure, and frame skeleton is layered truss structure;Index transmission system is integrated in base frame, and index transmission system includes feed conveyor belt and coaxial link's circular turntable, the edge of the circular turntable is provided with equal-angle arc limiting slot;The filling unit is fixed on the frame skeleton, and the filling unit includes storage hopper and the multiple-channel filling head connected, the end of the multiple-channel filling head is embedded with pneumatic ration valve, and the valve body of the pneumatic ration valve extends liquid injection pipe below.The utility model structure is strong in rigidity, and anti-vibration stable, and index transmission positioning is accurate, and multiple-channel pneumatic ration filling precision is high and anticorrosion, and vacuum chuck capping is reliable against falling off.

The invention discloses a liquid crystal display processing device, comprising a positioning frame, two side frames and a movable frame; the positioning frame and the side frames are respectively provided with a limiting groove and a screen groove for inserting a display screen; the movable frame can be inserted into and fixed on the side frame and seal the display screen; the limiting groove can limit the display screen and allow a glue coating gap to exist between the edge of the display screen and the upper and lower inner walls of the screen groove; a first glue injection component capable of filling the glue coating gap with A glue is installed inside the side frame; a second glue injection component is included for filling the glue coating gap with B glue and capable of sealing the glue coating gap; wherein the mixture of A glue and B glue can be hardened and adhered, and the invention adopts a method of sealing the frame first and then injecting glue for packaging, which can effectively improve the stability and sealing performance of the glue liquid, thereby improving the waterproof and dustproof ability of the display screen.

The present invention relates to the technical field of filling and management of goaf, and specifically to a coal mine goaf filling and management equipment, including a base and a conveying pipeline arranged directly above the base, a hydraulic rod is installed on the top of the base, and a support assembly is arranged at the output end of the hydraulic rod, and the support assembly includes a vertical support adjustment assembly arranged on the base, a mobile support assembly arranged on one side of the vertical support adjustment assembly, and a lateral adjustment assembly arranged in the vertical support adjustment assembly. This device drives the movement of the mobile box and the mobile support plate by arranging an auxiliary adjustment assembly, and can adjust the mobile box and the mobile support plate separately when the base and the adjustment assembly are fixed, so as to achieve the adjustment of the support area and the filling area of ​​the goaf, and through the arrangement of the fixed support plate, the mobile support plate and the hydraulic support rod, the goaf can also be effectively supported during filling to avoid the collapse of the goaf.

The invention relates to the field of cement concrete, and particularly discloses modified carbonaceous coal gangue and a modification method thereof. The modified carbonaceous coal gangue is prepared from the following raw materials in parts by weight: 1.5 to 3 parts of water glass, 5 to 8 parts of modified polyvinyl acetate emulsion, 20 to 30 parts of carbonaceous coal gangue and 2 to 4 parts of sulfate solution, and the modified polyvinyl acetate emulsion is obtained by copolymerization modification of methyl methacrylate and vinyl acetate emulsion; the preparation method comprises the following steps: pretreating the carbonaceous coal gangue, crushing, screening, cleaning, sequentially adding the water glass and the sulfate solution while stirring, continuously stirring for 5-10 minutes, slowly adding the modified polyvinyl acetate emulsion, stirring, uniformly mixing, and drying to obtain the modified carbonaceous coal gangue. The problem that the coal gangue concrete is poor in strength is solved, the prepared coal gangue concrete has high compressive strength and breaking strength, and the performance limitation of traditional coal gangue concrete is effectively improved.

This invention relates to a method for seamless welding of multi-cavity profiles and integrated molding of sound insulation layers, as well as a door and window frame. It belongs to the field of building door and window profile processing and manufacturing technology. By moving the injection of the sound insulation composite material before welding, pre-injection is completed when the profile cavity ports are open, solving the problem of material not flowing into the closed corner area and resulting in missing corner sound insulation filling in existing post-injection processes. By applying a heat-activated protective film to the welding end face and implementing a staged heating and pressurization process, the flow homogenization conditions of the molten material on the outer surface are improved, effectively reducing the width of the white weld seam at the corner. By selecting a sound insulation material system with a final curing temperature matching the welding residual heat temperature range, the residual heat during the natural cooling process of the corner after welding drives the final curing of the material, merging the welding process and the sound insulation layer molding process. No structural modifications to existing welding equipment are required, making it easy to promote and apply under existing production conditions.

The utility model relates to a condensation return pipeline, which belongs to the field of condensation return pipes and comprises a relay pipe, the left end and the right end of the relay pipe are provided with connecting mechanisms convenient for thickening connection, and the inner wall of each connecting mechanism is provided with a sealing mechanism for secondary sealing. According to the condensation backflow pipeline, the connecting mechanism is arranged, the two butt-joint pipes are connected with the relay pipe, the two butt-joint pipes can be in butt joint with the two backflow pipe bodies so that the condensation backflow pipeline can be connected and fixed, the positions of the welding grooves correspond to the positions of the welding guiding openings, and then the welding grooves and the welding guiding openings are filled with welding flux; compared with the prior art, after the backflow pipe body is inserted into the inserting groove, the butt joint pipe can increase the wall thickness of the inner side and the outer side of the backflow pipe body in an all-around mode, and therefore damage caused by high-temperature melting of the welding flux is prevented; and the welding groove and the welding guide opening can quickly guide welding flux to flow and fill along the welding groove, and the connection stability is improved.

The utility model discloses an electric power inspection well anti-seepage structure which comprises a well body, waterproof concrete is connected to the top of the well body, a well mouth assembly is connected to the top of the waterproof concrete, a top waterproof assembly is installed on the top of the well mouth assembly, through grooves are formed in the two sides of the well body, and connecting assemblies are installed in the two through grooves. According to the anti-leakage structure of the electric power inspection well, through the connecting assembly, the sealing assembly and tightening of the threads, the connecting portions on the two sides of the inspection well can be squeezed mutually, gaps are effectively filled, and therefore good sealing is formed; rainwater infiltration from the outside is reduced through the waterproof mortar outside the well body, a waterproof film is formed through the polyurethane waterproof coating inside the well body, external water is blocked to prevent water from entering, and through cooperation of various waterproof and sealing modes, rainwater can be effectively prevented from entering the well, and faults such as short circuit and electric leakage caused by damp and water inflow of equipment are prevented.

The utility model discloses a horizontal drilling anti-gushing device for a horizontal MJS construction method pile, which comprises a main pipe, a gate valve arranged at one end of the main pipe, a seat pipe arranged at the other end of the gate valve, a check ring arranged at the other end of the main pipe, a blocking cover arranged between the main pipe and the check ring, and a fourth water stop ring arranged between the blocking cover and the main pipe. A second water stop ring is arranged between the main pipe and the gate valve, and a third water stop ring is arranged between the gate valve and the seat pipe. A first pressure relief pipe and a second pressure relief pipe are installed on the seat pipe and the main pipe respectively, and a first pressure relief valve and a second pressure relief valve are installed on the first pressure relief pipe and the second pressure relief pipe respectively. According to the horizontal drilling gushing prevention device for the horizontal MJS construction method pile, a gap between a new diaphragm wall and an old diaphragm wall can be effectively filled, the dangerous case of water gushing and sand gushing in the drilling process of the horizontal MJS construction method pile can be effectively avoided, and the horizontal drilling gushing prevention device has the advantages of being reliable in structure, convenient to install and capable of being repeatedly used.

The invention discloses a reversible enzymatic protective agent for bone cultural relics and a method for using the same and an application thereof, and belongs to the technical field of bone cultural relic protection. The protective agent provided by the invention can quickly form a protective film on the surface of the bone cultural relic, and the fastest time is 9 minutes, and can effectively fill the crisp gaps on the surface of the bone cultural relic. The hardness, porosity and compressive strength of the bone cultural relic protected by the protective agent provided by the invention are significantly improved; the protective agent provided can be thoroughly washed off by spraying a 50±5°C, 1% ethylene glycol aqueous solution, then rinsing with running water, and lightly brushing with a soft brush to assist, and the bone cultural relic after washing off the protective agent has no obvious change from the surface of the cultural relic before protection / reinforcement by the protective agent, and has strong reversibility; the components of the protective agent and the eluent are all non-toxic or low-toxic preparations, and there is no safety hazard to the health of bone cultural relic protectors and visitors. It is green and environmentally friendly, simple to operate, and suitable for the protection of bone cultural relics.