213results about How to "Maintain pressure resistance" patented technology

The invention discloses a sludge treatment method, as well as sludge foamed lightweight concrete produced through the method and application thereof. In the method, sludge produced by sewage treatment first reacts with quicklime so as to form sludge hydrated lime; then the sludge hydrated lime is mixed with cement and water so as to form sludge concrete; foaming agent produces foam by utilizing a foaming system of a foaming machine; and the foam is mixed with the sludge concrete. The sludge treatment method can directly obtain the sludge foamed lightweight concrete. The sludge foamed lightweight concrete has a plurality of functions, which can be used as a filling material, a heat insulating material, a walling material, a sound insulation material, a mine tunnel filling material, an artificial landscape manufacturing material, a road recovery material, a pipe base filling material and the like. The sludge treatment method is low in cost and friendly to environment, can directly produce the sludge foamed lightweight concrete with a plurality of functions, and not only solves the sludge treatment problems in the sewage treatment industry, but also ensures the full utilization of the sludge.

The invention relates to a PPR (polypropylene randon coplymer) pipe material with excellent low-temperature toughness. The PPR pipe material is prepared from the following raw materials in parts by mass: 100 parts of polypropylene randon coplymer, 0.1 to 5 parts of coupling agent, 1 to 20 parts of toughening agent, 1 to 20 parts of crystal whisker loaded beta nucleating agent, 0.1 to 3 parts of antioxygen, and 0.1 to 5 parts of color master batch. The PPR pipe material provided by the invention has excellent low-temperature toughness, and has better rigidity, strength and pressure resistance at the same time; according to the PPR pipe material with the excellent low-temperature toughness provided by the invention, the reliability in transporting and applying the pipe material in a low-temperature environment is improved.

The invention relates to an implanted and grouted compound pile which mainly comprises a precast tubular pile, Y-shaped wing plates, solidified backfill soil, pile side grouting reinforcing bodies, high pressure grouting squeezing bodies, a pile bottom precast enlarged head and a pile bottom high pressure grouting enlarged head. The precast tubular pile is formed by combining and connecting a plurality of sections of tubular piles with one or various pile diameters; the bottom of the precast tubular pile is provided with the precast enlarged head; the Y-shaped wing plates are uniformly distributed outside the tubular pile in the ring direction; high pressure grouting tubes pass through cavities between the Y-shaped wing plates and the tubular pile and the positions of grouting tube orifices are adjustable; the high pressure grouting squeezing bodies are formed by continuously grouting at the designed positions at high pressure; and the solidified backfill soil is back filled into a cavity inside the precast tubular pile and the residual solidified soil is paved on the construction site. According to the invention, the enlarged pile head is formed at the bottom of the tubular pile and the grouting reinforcing bodies and the high pressure grouting squeezing bodies are formed outside the tubular pile, so that bearing capacity of the soil in different positions around the pile can be sufficiently played; and a drilling and earth borrowing technology is adopted to form a hole, and a soil compaction effect is small. Moreover, the invention further discloses a construction method of the implanted and grouted compound pile.

A method for classifying underwater original position of polytoplankton by detecting concentration of polytoplankton includes setting a groove at one side of closed pressure box and a light shading cover at external side of said box; erecting LED array formed by parallel-arranged LED with center wavelength of 450nm, 525nm, 570nm 590nm and 620nm in light path at side surface of said groove; dividing polytoplankton to be five light spectrum set as green, blue, brown, red and mixture; measuring 685nm florescent intensity of five different exciting wavelength to calculate out chlorophyll concentration of each light spectrum according to known coefficient.

The invention provides a plant granular aromatic bead and preparation method and application thereof. Dried aromatic plants are ground into a certain mush number of powder, and mixed with nano-calcium carbonate, corn modified starch, water-soluble chitosan, degummed hemp fiber powder and water to obtain a wet material; the wet material is dried after granulation forming, the whole round polishing and atomizing aromatic flavoring steps are carried out after the wet material is dried, the plant granular aromatic bead with regular roundness and size is obtained. The plant granular aromatic bead is added when filament bundles of a filter rod are formed. After the filter rod is formed, the aromatic bead is located in the center of the filter rod and wrapped by the filament bundles. The filter rod is made into cigarettes, harmful substances such as tar content in cigarette smoke are reduced, meanwhile the aroma of the cigarettes is increased, and further rich aroma of cigarette products is provided to meet the pursuit of cigarette aroma of consumers.

The invention relates to a method and device for efficiently removing organic matters in sewage by using periphyton. The method comprises the following steps: (1) design of spiral periphyton reactor; (2) spiral pipe pretreatment; (3) fixation process of periphyton; (4) design of periphyton treatment system; (5) design of integrated spiral periphyton reaction system; and (6) control of key environmental conditions. The device used by the method is an integrated spiral periphyton reaction system. The adsorption, absorption, biodegradation and other mechanisms of the periphyton are utilized and combined with the traditional precipitation and filtration processes to form the integrated spiral periphyton reactor. The device has the characteristics of high efficiency, small occupied area and high economic and environmental efficiency when being used for purifying organic pollutants in sewage or low-concentration low-C/N-ratio sewage.

The invention belongs to the technical field of mining shock-resisting supporting and particularly relates to a fault-passing roadway waterproof damping and shock-resisting coupling support method. The fault-passing roadway waterproof damping and shock-resisting coupling support method includes sequentially setting a surrounding rock plastic ring, a damping support ring and two layers of tiles from surrounding rocks of the fault to a roadway, forming the surrounding rock plastic ring by the surrounding rocks in an artificial blasting manner, and paving cement-based glass fibers on the inner surface of the surrounding rock plastic ring to form the damping support ring; paving two layers of the tiles on the inner surface of the damping support ring, wherein the tiles on the outer layer is outer waterproof tiles, and the tiles on the inner layer are inner tiles; enabling an anchorage rod to be perpendicular to the outlines of the tiles and sequentially penetrate the tiles, the damping support ring and the middle of the surrounding rock plastic ring to form a fixed coupling, and paving ballasts on the ground of the roadway and the upper surfaces of the tiles. By the method, support intensity is high, buffering and damping and shock resistance are high, and waterproof effect is good.

A multi-layer tube (1) which comprises a base tube (3) and a coating layer (2) laminated on the inner surface of the base tube (3). The base tube (3) is made of a fluororubber type thermoplastic elastomer composed of rubber phase and a crystalline phase and has a hardness of HDA 40 or more and HDA 70 or less as measured according to JIS K 7215. The coating layer (2) is made of a blend of the above fluororubber type thermoplastic elastomer with a (vinylidene fluoride)-(hexafluoropropylene)-(tetrafluoroethylene) tenary copolymer and has a hardness of HDA 70 or more and HDD 80 or less as measured according to JIS K 7215.

The invention discloses a hook-shaped steel core composite connecting piece prefabricated sandwiched heat insulation wallboard and a manufacturing method thereof .Internal and external acanthuses are formed by pouring concrete, a middle sandwich layer is a heat insulation board, and the three-layer structure is connected into a whole through hook-shaped steel core composite connecting pieces, wherein the hook-shaped steel core composite connecting pieces are hook-shaped reinforcing steel bar core continuous fiber composite connecting pieces and high-strength steel wire core model plastic compression molding steel core composite connecting pieces .The steel core composite connecting pieces of each kind are of a straight insertion type and an oblique insertion type .The internal and external concrete acanthuses are connected together through the straight insertion type hook-shaped steel core composite connecting pieces in a 90-degree orthogonal mode, and hook heads of the connecting pieces can hook an eternal acanthus internal reinforcing steel bar net; the internal and external wall acanthuses are connected together through the oblique insertion type steel core composite connecting pieces in a 45-degree oblique crossing mode .The prefabricated concrete sandwiched heat insulation external wall has the advantages of being high in anti-shear and anti-bending performance, good in heat insulation effect, high in construction efficiency, low in manufacturing cost, safe and reliable to use and the like .

The invention discloses a nano-antibacterial plastic bottle and a preparation method thereof. The nano-antibacterial plastic bottle contains the following components in percentage by weight: 50%-70% of polyolefin, 2%-10% of nano-antibacterial agents, 1%-8% of an antioxidant, 2%-10% of a lubricating agent and 10%-40% of an aid, wherein the nano-antibacterial agents are nano-zinc oxide, nano-titanium dioxide and nano-silicon dioxide, and the antioxidant is tetra[beta-(3,5-di-tertbutyl-4-hydroxyphenyl)propionate]pentaerythritol. The nano-antibacterial plastic bottle is prepared by virtue of an injection blow molding one-step method. According to the preparation method, the pressure resistance, high-temperature resistance/oxidation resistance and durability of an antibacterial bottle are improved.

The invention relates to a 340MPa-grade high-strength cold-rolled steel plate used for deep-drawing, and a production method thereof. The steel plate comprises the components of, by mass: no more than 0.010% of C, no more than 0.060% of Si, 0.30%-0.70% of Mn, 0.030%-0.070% of P, no more than 0.015% of S, 0.020%-0.080% of Als, no more than 0.0050% of N, 0.0002%-0.0012% of B, and balance of Fe and inevitable impurities. A production method of the steel plate is that: a middle-ladle temperature is controlled at a value 20-60 DEG C higher than a liquidus temperature; a furnace discharging temperature is 1150-1250 DEG C; a final rolling temperature is 850-950 DEG C; a coiling temperature is 650-750 DEG C; and a cold rolling total reduction rate is controlled at 50-80%. In a continuous annealing process, a soaking temperature is 750-850 DEG C; an annealing temperature is 600-700 DEG C; and a flash cooling temperature is 350-450 DEG C.

The invention relates to the technical field of packaging materials, in particular to a degradable antibacterial preservative film product and a preparation method thereof. The degradable antibacterial preservative film product is prepared from the following raw materials in percentage by mass: 45%-75% of an environment-friendly base material, 1%-10%% of a nonmetal photocatalytic material, 0.1%-1%of an anti-oxidant, 2%-9% of a lubricant and 10%-40% of auxiliaries. The degradable antibacterial preservative film product has efficient, broad-spectrum, long-acting and safe antibacterial properties, and facilitates reduction of the use of additives such as the preservative and the like in food and drugs, so that the food and drugs can be stored for a longer time and can be transported further.The degradable antibacterial preservative film product is an environmentally-friendly type material, can be quickly decomposed in a natural environment, is beneficial for ecological environmental protection, reduces pollution and damages to environment, has a wide application prospect, and is widely applied to the packaging and freshness-retaining fields such as food, drugs, fruits and vegetables, fresh food and the like.

The invention relates to a refractive index sensor based on a mechanical suppression type long-period plastic fiber grating and belongs to the technical field of fiber grating sensors. The refractiveindex sensor based on the mechanical suppression type long-period plastic fiber grating is composed of a laser light source, a multimode plastic optical fiber, a first optical fiber fixing clip and asecond optical fiber fixing clip which can move in the horizontal direction, a long-period plastic optical fiber grating probe, an intelligent temperature control platform, an optical power meter anda data acquisition and processing system, wherein the long-period plastic optical fiber grating probe is one part of the multimode plastic optical fiber, an optical fiber cladding is eaten off, and acore layer is of a V groove array structure; the two ends of the probe are respectively clamped by the first optical fiber fixing clip and the second optical fiber fixing clip, one end of the multimode plastic optical fiber is connected with the laser light source, and the other end of the multimode plastic optical fiber is connected with the optical power meter. When light waves emitted from thelight source pass through the long-period plastic optical fiber grating probe, light density can be regulated by refractive index of to-be-detected solution contacted with the probe, and measurement on the refractive index of liquid is realized by utilizing the characteristic that the long-period optical fiber grating is sensitive to the refractive index.

The invention relates to a processing method of ginseng rich in ginsenoside Rg3. The processing method comprises the steps of: soaking ginseng in water for 10 min, cleaning, sunning for 3 h, drying at the temperature of 40 DEG C for 24 h, and performing repeated steaming and drying under different conditions to obtain the ginseng rich in ginsenoside Rg3. The ginseng processed by the method contains more than 40 kinds of ginsenosides as well as prostisols, trace volatile oil, various amino acids and phthaleins, glucose, fructose, pectin, vitamin B1, vitamin B2, nicotinic acid, pantothenic acid and the like. The variety of ginsenosides is 8 more than that of wild ginseng, the ginsenoside Rg3 content is far more than that in red ginseng, and Rg3 content is 46 times that of red ginseng.

An embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to improve the optical crosstalk problem among different-color subpixels in a quantum-dot display panel. The display panel comprises a backlight source, a quantum-dot color film layer and a retaining wall structure and is characterized in that the retaining wall structure only comprises a first retaining wall, and the projection, on the plane where the display panel is located, of the first retaining wall is only located between the first color subpixel area of thedisplay panel and a different-color subpixel area adjacent to the first color subpixel area; or the retaining wall structure comprises a first retaining wall and a second retaining wall, the projection, on the plane where the display panel is located, of the first retaining wall is located between the first color subpixel area of the display panel and a different-color subpixel area adjacent to the first color subpixel area, and the projection, on the plane where the display panel is located, of the second retaining wall is only located between the second color subpixel area of the display panel and the third color subpixel area of the display panel, and the height of the first retaining wall is larger than that of the second retaining wall.

The invention provides a lithium battery liquid cooling box which comprises a casing, a flat heat pipe, a casing cover and a liquid cooler; the square casing comprises a base plate, two long side plates and two short side plates, and the base plate, two long side plates and two short side plates form a cavity for placing a lithium battery group; the flat heat pipe is placed in the bottom of the cavity, and includes a U-shaped seal pipe in the external and an imbibition core, a gas channel and a work liquid in the internal; the bottom of the flat heat pipe is placed on the base plate, the two sides of the flat heat pipe makes contact with the two long side plates respectively, and the flat heat pipe is used to transfer heat of the lithium battery group mounted in the upper to the two long side plates; the casing cover is detachably mounted on the casing, and is used to enclose the cavity; and the liquid cooling device is hollow and arranged surrounding the casing, and includes an inletand outlet, the cooling inlet enters the inside of the liquid cooling device via the inlet and flows out of the outlet, and the liquid cooling device is used to cool the two long side plates.

The invention provides an antibacterial and mildew-proof agent, mildew-proof starch glue, mildew-proof and antibacterial corrugated paper and a preparation method of the mildew-proof and antibacterialcorrugated paper. The antibacterial and mildew-proof agent is prepared from the following components in percentage by mass: 9-13% of octyl isothiazolinone, 13-18% of nano zinc oxide, 8-12% of emulsion and the balance of water. The mildew-proof starch glue is prepared from the following raw materials: tapioca flour, the antibacterial mildew-proof agent, caustic soda, a stabilizer, a strong adhesive and water. The mildew-proof and antibacterial corrugated paper comprises the surface paper layer, the middle layer and the inner paper layer which are sequentially arranged, and the surface paper layer and the inner paper layer are bonded with the middle layer through the mildew-roof starch glue. The mildew-proof and antibacterial corrugated paper has excellent waterproof effect and efficient broad-spectrum antibacterial and mildew-proof effect, can effectively prevent the corrugated paper from mildewing due to moisture absorption in a high-temperature and high-humidity environment, and wellkeeps the buffering and damping effect and the compression resistance effect of the corrugated paper.

The invention discloses a solid towline with good dragging performance for marine seismic exploration. The solid towline is characterized in that the solid towline comprises a main cable, hydrophones,buoyancy sleeves and an outer sheath. The hydrophones are fixedly arranged on the main cable with an equal interval. The hydrophones are electrically connected to corresponding wire cores in the maincable. Each of the buoyancy sleeves is made of a foamed polyethylene material, and foamed polyethylene is extruded on the main cable. The main cable includes the transmission wire cores, a tensile fiber layer and a conductive wire layer. The tensile fiber layer is formed by weaving aramid yarn and/or polyester yarn outside the transmission wire cores. The conductive wire layer includes a set of power lines and a set of signal lines. The power lines and the signal lines are orderly arranged with an equal interval along the circumferential direction of the main cable outside the tensile fiber layer to form the corresponding wire layer. The buoyancy sleeves are fixedly arranged on the main cable with an equal interval, and each of the buoyancy sleeves is between two adjacent hydrophones. Theouter sheath is made of a thermoplastic polyurethane elastomer rubber material and is extruded outside the hydrophones, positioning ends and the buoyancy sleeves, and the outer sheath is seamlessly bonded to the hydrophones.

The invention relates to an embedded wireless intelligent sensor for geotechnical engineering monitoring. The embedded wireless intelligent sensor is mainly characterized in that the embedded wireless intelligent sensor comprises a sealing box and an internal sensor circuit; the sensor circuit comprises a collecting and controlling unit, a wireless transmitting module, a power source managing unit, a storage battery and a monitor interface unit. The collecting and controlling unit is connected with the wireless transmitting module, the monitor interface unit and the power source managing unit respectively; the wireless transmitting module is connected with a field server through antennas mounted on the sealing box to realize a function of wireless transmission; and the monitor interface unit is connected with a monitor. The embedded wireless intelligent sensor is reasonable in design, realizes functions of automatic data collection and transmission for geotechnical monitoring, has the characteristics of high automaticity, convenience in networking, low cost and the like, can be widely used in the fields of stability monitoring on natural rock mass geography, side slope and support in ground works, underground tunnels and construction works.