36results about How to "Sure break" patented technology

The invention discloses a five-double full-dry method crushing production line and processing method for high-quality sand aggregates. The production line comprises a material pretreatment system. A discharge port of the material pretreatment system is connected with a feed port of double-impact crushing equipment of a fine coarse aggregate processing system, a discharge port of the material pretreatment system is connected with a primary classifier, and a discharge port of the primary classifier is connected with a finished product screening and proportion adjusting circulation system. A super-particle-size material outlet of the finished product screening and proportion adjusting circulation system is circularly connected to a feed inlet of double-speed double-frequency crushing sand making equipment. The fine sand aggregates are connected to corresponding finished product bins or are circularly connected to the feed inlet of the double-speed double-frequency crushing sand making equipment, and multi-stage powder selecting equipment is arranged below a fine sand outlet. According to the production line, the production line with multi-stage desliming, double-countering-impact crushing, double-vertical-shaft impact crushing shaping sand making, multi-stage powder selecting and multi-stage circulation is adopted, so that the system productivity and the quality of the finished sand aggregates are improved effectively, the efficient and energy-saving effects are realized, and the practicability is high.

Disclosed is a manufacturing method for a UNSN08810 iron-nickel-base alloy large-diameter seamless pipe for a high temperature heating furnace. The manufacturing method comprises the following steps that firstly, a square ingot which meets requirements is directly continuous-casted by using an electric arc smelting method, then the square ingot is cogged, then a hollow billet is produced by usinga hot piercing process, finally, through a cold machining process, a matched heat treatment process and a supplemented pipe surface treatment process, and the texture of the pipe is controlled to be uniform, so that the pipe has high performance and high surface quality. The microscopic structure of the pipe is isometric crystal, the grain size is 3-5 grades, the tensile properties of a finished pipe at room temperature are that the tensile strength is equal to or greater than 500 MPa, the yield strength is equal to or greater than 210 MPa, and the elongation is equal to or greater than 50%, and the tensile properties at 650 DEG C are that the tensile strength is equal to or greater than 400 MPa, the yield strength is equal to or greater than 120 MPa, and the elongation is equal to or greater than 50%.

A tear groove with a shape of an airbag door is formed in the back side of a base, the residual thickness of the base measured at the center line of the groove is set smaller than the thickness of the remaining portion of the base, and dotted tear holes for selectively breaking a skin are formed in the centerline portion and near a portion where a side line and the centerline meet. Consequently, when an airbag is inflated and expanded, the base and the skin of the airbag door are synchronously broken in an appropriate order on a portion by portion basis.

The invention discloses a forming method of a precise high-temperature alloy pipe with small caliber and thick wall for aviation. The forming method comprises the following steps: S1: cold rolling: carrying out multi-pass cold rolling on a qualified seamless tube to obtain a tube blank in transitional specification, wherein the outer diameter of the tube blank in the transitional specification is 1.14-1.17 times of that of a finished tube, the wall thickness of the tube blank is 0.97-0.985 times of that of the finished tube, and the dimensional deviation is controlled within a range of plus or minus 0.03mm; S2: manufacturing a pointed end: carrying out degreasing, heat treatment, acid cleaning, straightening and UT (ultrasonic) flaw detection on the tube blank with transitional specification sequentially, selecting the qualified tube blank obtained after UT flaw detection, and welding a pointed end with conicity at the end part of the qualified tube blank; S3: empty sinking: drawing the tube blank by the pointed end and deforming the tube blank under the extrusion of an outer mold to obtain a finished tube. The forming method makes up the technical gap of domestically producing the precise high-temperature alloy pipe with small caliber and thick wall, and has important economic benefit on the research and the production of a domestic aero-engine.

The invention relates to a crushing and screening grading device for active carbon. The crushing and screening grading device comprises a first underframe, a second underframe, a crushing mechanism fixed to the first underframe and a screening grading mechanism fixed to the second underframe. The crushing mechanism is used for crushing the active carbon and can crush the active carbon twice. The screening grading mechanism is used for screening the crushed active carbon according to the granularity. The crushing and screening grading device has the function of crushing the active carbon and the function of graded screening of the crushed active carbon, and the crushing mechanism and the screening mechanism for the active carbon are integrated to replace a traditional processing mode that the crushing procedure of active carbon and the graded screening procedure of the active carbon are separated, so that the processing cost of the active carbon is reduced, automatic crushing and gradedscreening of the active carbon are achieved, and the processing efficiency is improved.

The invention discloses a lifting device, belongs to the field of operation and transportation, and relates to winching, lifting and traction. The lifting device is used for solving the problem that in an existing construction site, the accident of top-impacting of a box is prone to occurring. The lifting device comprises a guide rail frame, a ground protection fence arranged at the lower part ofthe guide rail frame and a lifting cage arranged on the guide rail frame, wherein the guide rail frame is provided with an anti-top-impacting mechanism which comprises an upper buffer plate, an upperbuffer hook arranged on the upper buffer plate, a buffer guide frame, an upper buffer plate limiting structure, a lower buffer plate and a lower buffer hook arranged on the lower buffer plate, and theupper buffer plate can slide vertically along the guide rail frame through the buffer guide frame. By arranging the anti-top-impacting mechanism, partial or complete failure of electric protection isavoided, and the accident of top impacting of the box is avoided by mechanical protection. The invention also discloses a use method of the lifting device.

The invention discloses a snow and ice removing device for a campus playground runway in winter, and relates to the technical field of playground cleaning. The snow and ice removing device for the campus playground runway in winter comprises a runway snow removing mechanism used for removing snow on the runway, an air bag crushing mechanism used for crushing an air bag, an elastic extruding mechanism used for elastic extruding, a magnetic ice breaking mechanism used for magnetic ice breaking and a rotary ice breaking mechanism used for rotating ice breaking, a snow remover is arranged in the runway snow removing mechanism, and an air bag crushing mechanism is arranged in the snow remover of the runway snow removing mechanism. According to the snow and ice removing device for the campus playground runway in winter, under the condition that a screw rod is extruded, the screw rod is attached to the ground to remove ice and snow, the screw rod rotates spirally to drive the ice and snow to move so as to ensure that the ice and snow are removed, and the rotation of a rotating paddle can smash the ice and snow, so that the ice and snow are prevented from being accumulated too high, and the collection of ice and snow is ensured.

The invention provides a heating and crushing processing system for waste rock solids in coal mining. The eating and crushing processing system comprises a calcinator, a calcining mechanism, a slidingplate, an electric push rod, a crushing box, a crushing mechanism and a supporting frame. The heating and crushing processing system can solve the following problems existing in the process of crushing and processing the waste rock solids in a coal mine: a, for coal mine waste rock crushing modes, in a traditional process, the coal mine waste rocks are conveyed into a crusher for stirring and rolling and decomposed into recyclable fine particles, no crushing pretreatment is conducted on the coal mine waste rocks in the traditional process, and it is difficult for the crusher to roll the coalmine waste rocks into small pieces; and b, generally, a traditional crusher is used for crushing the coal mine waste rocks, in this way, it is difficult to ensure that the coal mine waste rocks are 100% broken into required small pieces, the traditional crusher has low use efficiency and high labor cost, and it is often necessary to carry out secondary crushing on the broken waste rocks to ensurethat the broken small pieces can be used.

The invention provides hot air non-woven fabrics capable of fast and efficiently guiding flow and inhibiting bacteria. A fiber composite layer is formed by compounding an upper latex layer, a mixed fiber layer and a lower latex layer, and the lower fiber layer is formed by compounding a compact fiber layer at the inside and a sparse fiber layer at the outside, the mixed fiber layer is formed by uniformly mixing bamboo charcoal fibers and thermoplastic synthetic fibers with stirring, the formed lower fiber layer has strong permeability due to the sparse fiber layer, the dense fiber layer has astrong capillary phenomenon, the sparse fiber layer can quickly guide a flow of water and other liquids, the dense fiber layer can quickly absorb and firmly grasp water and other liquids, and thus thecompact fiber layer and the sparse fiber layer cooperate with each other to achieve efficient and fast flow guiding and absorption purposes of liquids. The mixed fiber layer has bacterium inhibitingand resisting effects, environment protection effects and high liquid and moisture absorption effects of bamboo charcoal fibers. The present invention also provides a production method for the hot airnon-woven fabrics capable of fast and efficiently guiding a flow and inhibiting bacteria.

The invention discloses a mounting unit of an analyte detection device. The mounting unit comprises an auxiliary mounting structure, a sensor unit, a triggering part and a base, wherein the auxiliary mounting structure is arranged at the rear end of the mounting unit; the sensor unit is arranged close to the front end of the mounting unit; the sensor unit comprises a pedestal and a sensor arranged on the pedestal; the sensor comprises an in-vivo part and an in-vitro part; the in-vitro part is bent or buckled towards the top of the pedestal, and the in-vitro part is located at a working position; before the triggering part is started, the auxiliary mounting structure does not implement the mounting action; and the base is embedded into the mounting unit from the front end of the mounting unit. In the whole installation process, the shape of the in-vitro part of the sensor is not changed, an electrode or an electrode lead on the surface of the sensor is prevented from being broken, normal detection is ensured, and the reliability of the analyte detection device is improved.

The invention provides a soil breaking and loosening device for planting lands. The soil breaking and loosening device comprises a rack, rollers, a soil loosening mechanism, a first air cylinder, a movable sliding block, a lifting air cylinder and a soil breaking mechanism. The soil breaking and loosening device for the planting lands can solve the following problems existing in a soil breaking and loosening process of the planting lands: a, traditional soil breaking and loosening of the planting lands are carried out by simple tools manually in general, and the tillage mode is high in labor intensity, needs to consume a large amount of time and is not suitable for large-area soil breaking and loosening; and b, soil loosening equipment in the current market is expensive and relatively single in function, the equipment which can often loosen soil cannot break and refine the soil and cannot effectively remove weeds in the soil, and the weeds in a place subjected to soil breaking and loosening often still grow in the place and need to be manually cleaned, so that the labor intensity is not reduced.

The invention discloses a method for selecting the optimal microwave radiation power of environmental-friendly high-tenacity regenerated rubber, belonging to the field of waste rubber regeneration. The method comprises the following steps of: flatly laying rubber to be processed 2 cm in thickness; then, carrying out microwave regeneration processing on the rubber; under the condition that the microwave radiation frequency is 2450 Hz, respectively setting the power into seven power points: 320 W, 400 W, 480 W, 560 W, 640 W, 720 W and 800 W power points, respectively setting the radiation time into seven time points: 60 s, 70 s, 80 s, 90 s, 100 s, 110 s, 120 s time points, and carrying out microwave radiation processing on the rubber for seven times under each power point; and respectively carrying out low-temperature regeneration on 49 rubbers subjected to microwave radiation for 20 min on a low-temperature roll mill under each power point and each time point. Through carrying out testing on the physical mechanical properties and manufacturing process properties of the rubber prepared according to a national standard formula, the radiation power corresponding to the rubber with the optimal comprehensive property is determined as the optimal microwave radiation power. The method has the beneficial effects of saving the radiation energy and improving the properties of the regenerated rubber.