82results about How to "Strong load resistance" patented technology

The invention provides a method for treating livestock and poultry breeding waste water. The method mainly comprises the following steps of solid-liquid separation treatment, efficient nitrogen-phosphorus biochemical circulation treatment, modified oxidation ditch treatment, sludge reflux treatment, filtration and sterilization treatment and the like. The invention aims to provide the method for treating the livestock and poultry breeding waste water, which is high in capability of removing ammonia nitrogen, total nitrogen and total phosphorus and low in investment cost and running cost, and is easier to manage. The waste water treated by adopting the method provided by the invention can meet the requirement of the national Discharge standard of water pollutants for livestock and poultry breeding GB18596-2001; not only can the up-to-standard discharge requirement in the waste water treatment of the livestock and poultry breeding industry be effectively met, but also the difficult problem of removing the ammonia nitrogen while an organic matter is degraded is also solved; and the method is suitable for the waste water treatment of breeding farms on different breeding scales, similarly, is also suitable for the treatment of municipal domestic waste water and waste water with a high COD (chemical oxygen demand) or high ammonia nitrogen characteristic, and is wide in application prospect.

The invention relates to a concrete wall body expansion internal stress measuring sensor and a measuring method, wherein the sensor comprises a stabilizing block, a stabilizing block with a wire outlet, an elastic body, a strain beam, a foil-type metal strain gauge, a strain gauge lead, a metal fixed block, a signal processing board, a corrugated pipe and an output cable. The measuring method comprises the following steps of: pre-burying the sensor into concrete, acting the expansion internal stress of the concrete onto the strain beam part in the metal elastic body, and driving the deformation of the foil-type metal strain gauge through the deformation of the strain beam, so that the resistance value of the foil-type metal strain gauge is changed; forming a bridge from the foil-type metal strain gauge, applying a power supply to the bridge to generate electrical signals, obtaining the signals with the current of 4-20mA through amplification and voltage conversion, and transmitting the signals to a control sampling chamber through the output cable. The elastic body is formed through integral processing, and the elastic body and the stabilizing blocks are in welded structures. The output cable adopts the protection of the metal corrugated pipe, and the sensor is integrally sealed; the concrete wall body expansion internal stress measuring sensor has good stability, small size, light weight, pressure resistance, corrosion prevention, strong load resisting capability, high precision and small error.

The invention provides a deep cleaning treatment technique for urban sewage. Wherein, the deoiled waste water enters anaerobic pond and oxidation pond, then is deep cleared past the micropore ceramics pond, biological deposition pond, charcoal aeration tank, charcoal decolouration and deozonization pond. The out water achieves natonal III-grade water quality standard for surface water. This invention can prolong effectively the biological chain length and has well treatment ability.

The invention relates to an efficient sewage combined treatment method and a device. The combined treatment method is to adopt the sewage combined treatment device, which combines a photo-catalytic reactor with a jet loop high efficiency biological reactor. Sewage, in particular organic industrial wastewater with high concentration and low biodegradability is pre-treated by the photo-catalytic reactor at first to improve the biodegradability of the wastewater and then enters the jet loop high efficiency biological reactor for the aerobic activated sludge treatment to improve the sewage treatment efficiency and obtain good treatment effects. The combined device is to connect the photo-catalytic reactor which is a nano TiO2 photo-catalytic reactor to a water inlet pipe of the jet loop high efficiency biological reactor. The device of the invention has the advantages of compact structure and strong load resistance. The combined treatment method of the invention is provided with good treatment effects.

The invention provides a method for enhancing hydrolytic acidification performance of printing and dyeing waste water. The method comprises the following steps: waste water is introduced into an anaerobic baffle plate reactor; wherein the reactor is composed of separating chambers which are connected in series connection; the separating chamber comprises a housing, the upper surface of the middlepart in the housing is provided with a downward baffle plate, and the baffle plate separates the separating chamber into a downward flowing chamber which is located at an upstream position and a upward flowing chamber which is located at a downstream position; wherein the housing corresponding to the downward flowing chamber is provided with a sewage inlet, and the housing corresponding to the upward flowing chamber is provided with a sewage outlet; the upward flowing chamber is internally provided with a packing layer, in order to carry out interception of sludge in the waste water. The method has the advantages of stable operation, high processing efficiency, high anti-loading capability, and simple operation.

A PVC foam board relates to the field of a PVC foam board production technology and is characterized by comprising 50kg of PVCSG-8, 25kg of a feed back material, 30kg of calcium powder, 5kg of chlorinated polyethylene, 3kg of a stabilizer, 2kg of a foaming regulator, 1kg of an acrylate modifier, 0.5kg of a yellow foaming agent, 1kg of a white foaming agent, 4kg of a poplar powder, 0.3kg of an OA6 lubricant, and 0.6kg of a 60 lubricant. The PVC foam board provided by the invention has advantages of reasonable method, clear ratio, light weight, high density and good load resistance.

The invention belongs to the technical field of sewage treatment, and discloses a method for biological enhancement treatment of refractory organic pollutants with a photo-excited hole as an electronacceptor. The method comprises the following steps: 1) putting a composite semiconductor-coated carrier material into a reactor, introducing wastewater into the reactor inoculated with anaerobic sludge, and allowing the composite semiconductor-coated carrier material to be immersed in the wastewater, wherein the composite semiconductor-coated carrier material comprises a conductive carrier and a composite semiconductor material loaded on the conductive carrier; 2) carrying out habituated culture on the anaerobic sludge for a period of time, and loading a biological membrane on the surface of the composite semiconductor material to construct a photo-excited hole enhanced bioreactor; and 3) treating the refractory pollutants in the wastewater by utilizing the reactor under an illumination condition. According to the method disclosed by the invention, a semiconductor photocatalysis technology is coupled with a biological treatment technology, and the enhanced degradation of the organic pollutants in the wastewater is enhanced by utilizing the synergistic reaction of a semiconductor material and microorganisms, so degradation efficiency is greatly improved.

The invention discloses a PVC tile and a preparation method thereof. The PVC tile comprises a weather-proof modified layer and a PVC layer from top to bottom, wherein the PVC layer comprises the following compositions including a heat stabilizer, stearic acid, CPE, PE wax, paraffin, PVC powder, calcium powder, titanium dioxide and a pigment. The preparation method comprises the following steps ofsequentially adding the heat stabilizer, the stearic acid, the CPE, the PE wax, the paraffin, the titanium dioxide and the pigment in a stirring machine for premixing to obtain a premix; putting the premix, the PVC powder and the calcium powder in a hot stirring machine to be stirred uniformly to obtain a mixture; carrying out water cooling on the mixture obtained after hot stirring; adopting an extruder to extrude the cooled mixture out; compounding extrudate with the weather-proof modified layer to obtain a composite material; carrying out embossing and cooling on the composite material; andcarrying out die pressing and cutting forming to obtain the PVC tile. The weather-proof modified layer is thin and can save the cost; and by combining with the reasonable compositions, matching and the preparation technology of the PVC tile, the prepared PVC tile has excellent weatherability, waterproofness, load resistance and impact resistance.

The invention discloses a volcanic filler-based sewage treatment system of a biological aerated filter, and relates to an advanced treatment method of low-concentration domestic sewage. The advanced treatment method of the low-concentration domestic sewage comprises the steps of pretreatment, anoxic treatment and treatment in the biological aerated filter. The sewage treatment system is based on the volcanic filler; a volcanic filter material has the particle diameter of 4-6 mm, the density of 1.8-2.2 g/cm<3>, the specific area of 8*10<4>-9*10<4> cm<2>/g, the void ratio of 55%-60%, and the intraparticle porosity of 20%-25%. The sewage treatment system disclosed by the invention is a combined technology of physical pretreatment and biochemical treatment and an environmental-friendly energy-saving process technology and has the advantages of high removal ratio on suspended materials, COD (Chemical Oxygen Demand) and ammonia nitrogen, good effect, high anti-impact loading capacity and low investment and operation cost; and according to the volcanic filler-based sewage treatment system disclosed by the invention, treated water can achieve the national 'municipal sewage treatment plant pollution discharge standard (GB18918-2002)'.

The invention discloses a reinforcing method for wood structure ancient building protection. The reinforcing method comprises the following steps that (a) construction arrangement; (b) assembling a supporting frame; (c) positioning the support frame; (d) clamping and fixing; (e) supporting; and (f) transverse reinforcement. The reinforcing method is quick, reasonable and ordered in construction, high in adaptability and easy to control and adjust, the construction quality is effectively guaranteed, the reinforcing effect is good, the load resistance of the raw wood structure is improved, and meanwhile the raw wood structure cannot be damaged.

The invention provides an antenna angle adjusting device, including a first support arm, a second support arm and an angle adjusting piece. The bottom of the first support arm is rotatably connected with the bottom of the second support arm, and a first limiting hole is arranged in the first support arm; one end of the angle adjusting piece is provided with a sliding groove, the sliding groove ofthe angle adjusting piece and the first limiting hole of the first support arm are fixed in a screw joint manner through a first bolt and a fastener, and the other end of the angle adjusting piece isfixed on the second support arm; the first fastener locks the first support arm and the angle adjusting piece, an angle between the first support arm and the second support arm is relatively fixed; and when the first fastener loosens the first support arm and the angle adjusting piece, the first bolt can slide along the sliding groove, and drives the first support arm and the second support arm torotate relative to each other, thereby adjusting the angle of the antenna. Thus, the antenna angle adjusting device can enable adjustment operation of the antenna angle to be relatively convenient and safe, and an anti-loading capability is high.

The invention relates to a synthetic resin tile and a preparation technology thereof. The synthetic resin tile is prepared from the following ingredients in parts by weight: 30 to 50 parts of PVC resin, 15 to 25 parts of chloroprene rubber adhesive, 10 to 20 parts of ceramic micro powder, 5 to 15 parts of coal ash, 4 to 8 parts of calcium carbonate, 10 to 20 parts of epoxy resin glass fiber powder, 3 to 5 parts of an antioxidant and 1 to 3 parts of a flame retardant. As improvement, the antioxidant is an antioxidant SONOX 1010. As improvement, the flame retardant is an organosilicone flame retardant. The synthetic resin tile and the preparation technology thereof disclosed by the invention can overcome the technical defects in the prior art. The synthetic resin tile has the advantages of clear matching, high strength, practicability and durability.

The invention discloses foamed concrete which comprises the following components in parts by mass: 80-120 parts of cement, 20-30 parts of pearlife, 20-30 parts of vitrified micro bubbles, 30-45 partsof fly ash, 12-30 parts of rock wool board particles, 8-20 parts of a foaming agent and 60-100 parts of water. The invention further discloses a preparation method of the foamed concrete. The foamed concrete has the advantages of simple components and simple preparation, has the advantages of light weight, heat insulation, sound insulation, fire resistance and good shock resistance possessed by traditional foamed concrete, also has the excellent properties of high temperature resistance and ultralow temperature resistance, has strong anti-load capacity, and is not easy to pulverize.

The invention provides an ultrasonic friction stir welding composite welding system. The system is characterized in that the ultrasonic friction stir welding composite welding system comprises at least one front-stage ultrasonic amplitude-change pole, a rear-stage ultrasonic amplitude-change pole and a stirring head, and at least one ultrasonic transducer is fixed to the front end of each front-stage ultrasonic amplitude-change pole; the front end of the rear-stage ultrasonic amplitude-change pole is fixedly connected with the rear ends of all the front-stage ultrasonic amplitude-change poles; the stirring head is fixedly connected with the rear end of the rear-stage ultrasonic amplitude-change pole; the front-stage ultrasonic amplitude-change poles are high-order polynomial type half-wavelength ultrasonic amplitude-change poles, and the amplification factor of the front-stage ultrasonic amplitude-change poles is a large amplification factor; and the rear-stage ultrasonic amplitude-change pole is a half-wavelength ultrasonic amplitude-change pole, and the amplification factor of the rear-stage ultrasonic amplitude-change pole is a small amplification factor. According to the system, a high-power multi-vibrator ultrasonic vibration system is used for increasing the driving power of the system, improving the ultrasonic energy density in the welding process and improving the welding efficiency, and the high-power ultrasonic vibration system achieves the effects of increasing the ultrasonic amplitude and enhancing the anti-load capacity of the system by designing a multi-stage amplitude-change pole.

The invention relates to an adhesive and particularly discloses a resin adhesive for bonding thermosetting plastics and thermoplastic plastics and a preparation method and application thereof. The resin adhesive for bonding the thermosetting plastics and the thermoplastic plastics is prepared from the following raw materials in parts by weight: 800-1,000 parts of o-xylene or m-xylene, 280-450 parts of chlorinated polypropylene, 15-42 parts of styryl diethoxysilane, 2-6 parts of acrylonitrile, 1-3.5 parts of di-tert-butyl ether peroxide, 5-15 parts of acrylic acid and 4-6 parts of dimethacrylate-diester. The resin adhesive and the preparation method thereof have the beneficial effects that the raw materials are easily purchased, the cost is low, the toxicity is low, the use is convenient, the bonding is firm, a glass fiber reinforced plastic pipe which is formed through winding glass fibers after the glass fibers are subjected to resin infiltration is tightly combined with an inner pipe so as to form an integer, the split slippage of the inner pipe and an outer pipe is avoided, the coefficient of heat conductivity is large, and the heat resistance is good, so that the problem of bonding between the thermosetting plastics and the thermoplastic plastics is solved effectively, and the resin adhesive is used for bonding the thermosetting plastics (especially glass fiber reinforced plastics) and the thermoplastic plastics (especially polypropylene materials).

The invention provides a method for deep purifying domestic waste water of a residential area into reclaimed water. The method comprises the following steps: carrying out primary precipitation on sewage in a grating pool, then introducing the sewage into an oil separator, and separating oil stain out; introducing the sewage without the oil stain into a regulating reservoir; introducing supernatant water which is obtained after precipitation in the regulating reservoir into a biochemical pool with biological filling materials, and carrying out decomposition, oxidization and degradation; inflating air to the biochemical pool, and automatically flowing the reacted water to a sludge filtering tank; introducing the water filtered in the sludge filtering tank into a pressure filterer, and carrying out pressurization and filtration; continuously adding a flocculant in a water stream path; and causing the water filtered in the pressure filter to flow into an impounding reservoir for later use, and continuously adding a bactericide into the water stream path. By utilizing the method, the oil stain layer on the upper part of the oil separator is introduced into an oil storage tank, so that the deep purification treatment and recycle utilization of the domestic waste water are achieved on the premise of simple process, less investment, less land occupation and low operation and maintenance cost.