72results about How to "Increase destructive power" patented technology

The invention discloses a triple rotary spraying device for soil remediation and a method thereof. The triple rotary spraying device for soil remediation comprises a remediation drilling machine, a crawler walking system, a hydraulic support system, a derrick, a power head, a horizontal plate support and a triple rotary spraying system. The triple rotary spraying system comprises a high pressure drug injecting pump, an air compressor, a high pressure water injecting pump and a rotary spraying pipe. According to the device provided by the invention, the triple high pressure rotary spraying pipeis adopted for injecting high pressure water, high pressure air and a high pressure drug, high pressure spray has higher destructive power on soil, and a spraying range of high pressure spray can befurther enlarged. Meanwhile, the spraying depth of the rotary spraying pipe can be adjusted according to the drilling depth of the remediation drilling machine, and the remediation depth and a remediation range of the soil are increased. Meanwhile, a guiding hole driller is adopted for drilling a sandy cobble stratum, so that the triple rotary spraying device for soil remediation provided by the invention is not limited in a soil environment with different hardness, and has a favorable effect on complex hard geological conditions such as clay, silty soil, sandy soil and muddy soil.

The invention discloses a carbon fiber sizing agent and a preparation method as well as reinforced carbon fibers and a carbon fiber composite material. The carbon fiber sizing agent is prepared from modified epoxide resin, an organic solvent, a surfactant and water; the modified epoxide resin is obtained by modifying the epoxy resin by using polyurethane and acrylic monomers; the polyurethane is obtained by enabling isocyanate to react with a hydroxyl polymer. The carbon fiber sizing agent prepared by the method is used for sizing the carbon fibers so as to obtain the reinforced carbon fibers,and the reinforced carbon fibers are then compounded with resin matrix, so that the carbon fiber composite material is obtained; a sizing agent transition layer between the carbon fibers and the resin matrix of the carbon fiber composite material can withstand higher impact force and the destructive force, so that the bonding force between the carbon fibers and the resin matrix in the carbon fiber composite material can be increased.

The invention provides a drill bit and a sampling device which can be used for solving the problems that the existing sampling device can not accurately get information of coal samples due to large coal blocks, hard coal blocks and icing of the coal blocks. The drill bit comprises a drill bit connecting rod, a lateral tooth piece and a main drill bit, wherein the lateral tooth piece is connected to the side surface of the drill bit connecting rod and comprises lateral teeth for cutting the coal blocks from the side surface, the main drill bit is connected at the bottom of the drill bit connecting rod and comprises downward main teeth, and a main tooth blade is arranged on the main teeth. The drill bit comprises a lateral blade and the main drill bit, when coal samples are collected, not only can the main teeth of the main drill bit exert static pressure on the contact surfaces of the coal samples to be collected, but also the lateral teeth of the lateral blade can exert lateral rotary cutting force on the coal samples to be collected, thereby increasing the destructive power on the coal samples to be collected, facilitating the collection of the coal samples in the large coal blocks, the hard coal blocks and the iced coal blocks, ensuring the comprehensive collection of the coal samples and the accuracy of the obtained coal samples and further accurately knowing the quality of coal as received.

The invention discloses a fetal reduction device. The device comprises a handle and a strangling assembly disposed at one end of the handle. The strangling assembly is retractably disposed in a firstcontaining cavity in the handle and comprises a first strangling blade and a second strangling blade, and the first strangling blade and the second strangling blade can be retracted and expanded. Thestrangling assembly is retracted in the first containing cavity of the handle before the fetal reducing device is positioned to prevent the strangling assembly from damaging the cervix when the fetalreducing device passes through the cervix, and the first strangling blade and the second strangling blade are expanded when the strangling blades puncture a fetal heart, so that the destructive capability of the strangling assembly is enhanced to ensure that the fetal heart of a fetus subjected to fetal reduction is stopped; moreover, a syringe is arranged in the handle, an injection needle is poked into the fetal heart, and a propeller is pushed for injecting potassium chloride to make the fetal heart stop immediately, so that the two operating means are conveniently switched.

The invention relates to the technical field of wall dismantling, and particularly relates to a safe construction device. The safe construction device comprises a flat plate cart, and further comprises a controller, a hammering mechanism, a dust removing mechanism and a lifting mechanism, wherein the lifting mechanism comprises a lifting plate and a driving assembly; the hammering mechanism is arranged at the top of the lifting plate and used for hammering a wall; the hammering mechanism comprises a hammer head, a transmission assembly and two pushing assemblies; the dust removing mechanism isarranged at the top of the lifting plate and used for removing dust generated when the wall is hammered; the dust removing mechanism comprises a water supply barrel, an extrusion assembly and a plurality of atomizing spray heads; and the driving assembly and the transmission assembly are electrically connected with the controller. According to the safe construction device, water can be sprayed synchronously when the wall is dismantled, dust removing is achieved, workers are prevented from inhaling a large amount of dust, and the health of the workers is guaranteed; and meanwhile, lifting is more stable, the wall dismantling height can be accurately controlled, and various wall dismantling requirements are met.

The invention provides a high-pressure gas water-bomb firing apparatus which comprises an acceleration cylinder and a cushion cylinder. In the acceleration cylinder, the upper end of an acceleration cylinder body is connected with an upper end cover of the acceleration cylinder, the lower end of the acceleration cylinder body is connected with a lower end cover of the acceleration cylinder, a piston capable of moving up and down is installed in the acceleration cylinder body, a buffering ring capable of moving up and down is installed in the acceleration cylinder body, and the upper end cover of the acceleration cylinder is connected with a lower end cover of the cushion cylinder; in the cushion cylinder, an inner cylinder body is located in an outer cylinder body, an upper end cover of the cushion cylinder is respectively connected with upper ends of the inner cylinder body and the outer cylinder body, and the lower end cover of the cushion cylinder is respectively connected with lower ends of the inner cylinder body and the outer cylinder body; an annular piston is arranged in an annular cylinder, at least 3 piston rods are mounted on the annular piston, extend out from the lower end cover of the cushion cylinder and are inserted into the acceleration cylinder, and the piston rods are connected with the buffering ring in the acceleration cylinder; and the lower part of a water retaining drum is connected with the inner side of the buffering ring, and the upper part of the water retaining drum is inserted into a central hole in the cushion cylinder. The high-pressure gas water-bomb firing apparatus provided by the invention has a long firing range.

The invention provides an anti-winding straw crushing device. The anti-winding straw crushing device comprises a bottom plate; an enclosure is welded on the upper surface of the bottom plate; a crushing cavity is arranged in the enclosure; a feeding hole is welded at one side over the enclosure; the feeding hole is communicated with the crushing cavity; a crushing shaft is arranged in the crushingcavity; one end of the crushing shaft extends out of the enclosure, and is in transmission connection with a driving motor arranged on the bottom plate through a transmission wheel and a transmissionbelt; several crushing blades are fixed on the crushing shaft; several auxiliary cutters are fixed on the inner wall of the enclosure through a cutter frame; a base plate connected with the enclosureis at the bottom of the feeding hole through a screw assembly; several baffles are installed on the base plate; a discharging hole is arranged at the bottom of the crushing cavity; and a dischargingplate extending out of the enclosure is arranged below the discharging hole. According to the anti-winding straw crushing device in the invention, a movable cutter base is arranged; the movable cutterbase can horizontally move while rotating so as to drive the crushing blades to horizontally move; therefore, the crushing force of the crushing blades on straw structures can be increased; the ratethat the straw structures are wound on the crushing shaft is reduced; and thus, the anti-winding straw crushing device in the invention has good development prospect.

The embodiment of the invention relates to geosciences, and discloses a method for reducing natural disaster loss through manual intervention of earthquakes. According to the invention, through drilling and deep burying, explosives are placed near the position of the earth crust with potential earthquake risk, the explosives are detonated, and the stress and energy accumulated in the earth crust are released, so that the purposes of early prediction and planned occurrence of an earthquake are achieved. And casualties and property loss caused by the uncertainty of the earthquake are avoided. The earthquake, which is an originally uncertain and high-loss natural disaster, can be intervened and is low in loss.

The invention discloses a piston hammer machine drill-in type hammer and drill combined drilling machine, and relates to the technical field of drilling machine instruments. The drilling machine comprises a connecting cylinder, a hammer body and a spiral drill bit; the hammer body is in sliding connection with the inner wall of the connecting cylinder; the hammer body is of a cavity structure; a connecting piston is slidably mounted in the hammer body; the connecting piston is fixedly connected with a supporting drill rod; the connecting cylinder and the hammer body are respectively communicated with an air compressor; the spiral drill bit comprises a connecting shaft and a guide blade; the connecting shaft is fixedly connected with the hammer body; and the supporting drill rod is in sliding insertion fit with a connecting opening. The piston hammer machine drill-in type hammer and drill combined drilling machine has the beneficial effects that a torque sensor is used for monitoring a stratum environment to protect the spiral drill bit, so that the spiral drill bit rotates to drill holes when the stratum environment is soft, and the supporting drill rod supports and reinforces the spiral drill bit after the stratum environment is hardened to hammer rocks and the like to perform hammering and drilling operation. Therefore, the drill bit is prevented from being replaced during drilling operation in different stratum environments, the drilling efficiency is improved, and the use is more flexible and convenient.

The invention discloses a cold annealing and acid pickling technology of 204 Cu stainless steel with the thickness smaller than or equal to 1.5 mm. The cold annealing and acid pickling technology of the 204 Cu stainless steel with the thickness smaller than or equal to 1.5 mm comprises the steps of cold rollingannealing and mixed acid pickling, in the cold rolling annealing step, different temperatures are set in heating areas Z1 to Z10 in a furnace hearth of an annealing furnace, the mixed acid pickling step comprises the steps of neutral saltelectrolysis, mixed acid pickling andbrushing through brush rollers, and working modes of the brush rollers comprise that the current of the first brush roller and the second brush roller is 15.4-26.8 A, the rotating speed of the first brush roller and the second brush roller is600-800 rmp, and the load of thefirst brush roller and the second brush roller is 2-3 mm; and the current of the thirdbrush roller and the fourth brush roller is10.7-16.4A, the rotating speed of the third brush roller and the fourth brush roller is600-800 rmp,and the load ofthe third brush roller and the fourth brush roller is2-3 mm. Compared with the prior art, the cold annealing and acid pickling technology of the 204 Cu stainless steel with the thickness smaller than or equal to 1.5 mm has the advantages that annealing temperature standard is detailed accordingto the thickness interval, the cold annealing and acid pickling technology is applied to preparing the 204 Cu stainless steel with the thickness smaller than or equal to 1.5 mm, the thickness of oxide skin is decreased, uniformity of the oxide skin is improved, white spots do not exist on the upper surface and the lower surface of a stainless steel plate in full width, and the surface quality ofa product is improved.