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

The invention discloses a breeding sewage treatment method which comprises the following steps of: firstly deslagging sewage, then hydrolyzing, acidifying and regulating, then treating the sewage through a UASB (Upflow Anaerobic Sludge Blanket) reactor, and then carrying out corresponding biochemical treatment through a first-stage A / O treatment system, an intermediate sedimentation tank and a second-stage A / O treatment system sequentially; then sequentially carrying out dephosphorization treatment and flocculation treatment on the sewage subjected to the biochemical treatment to remove sediments, wherein supernatant liquid flows into a final sedimentation tank for further sedimentation, and then the supernatant liquid flows into a pH regulating tank so that the pH value of the supernatant liquid is regulated to be 6-9; then carrying out sterilizing treatment so as to achieve emission on standard. The breeding sewage treatment method disclosed by the invention realizes high-efficiency low-consumption synchronous treatment on carbon, nitrogen and phosphorous to remove total nitrogen, ammonia nitrogen and total phosphorus, thereby ensuring the water quality, improving the production efficiency and greatly reducing the production cost; the breeding sewage treatment method disclosed by the invention has the advantages of simple process, stability in system, small occupied area, low operating cost and the like.

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 discloses a lightweight four-degree-of-freedom leg mechanism of a four-foot bionic robot. The leg mechanism comprises a hip joint yawing assembly, a thigh yawing assembly and a shank yawing assembly, the hip joint yawing assembly comprises a hip joint swing cylinder and an electro-hydraulic actuator, one end of the electro-hydraulic actuator and one end of the thigh yawing assembly are hinged to the hip joint swing cylinder through connecting blocks respectively, the other end of the electro-hydraulic actuator is hinged to the side face of the thigh yawing assembly, and the otherend of the thigh yawing assembly is hinged to the shank yawing assembly. According to the four-degree-of-freedom leg mechanism of the four-foot bionic robot, through the integrated oil way design, light weight is achieved, the hip joint swing cylinder is driven and controlled by the hydraulic pump, the load resistance is high, the power-to-weight ratio is high, the electro-hydraulic actuator andthigh longitudinal swing general assembly is quick in action response, kinetic parameters are easy to accurately measure, and four-degree-of-freedom motion with three active degrees of freedom and onepassive degree of freedom can be achieved.

The invention discloses a technological method for treating coking wastewater. The technological method comprises the following steps that (1) coking wastewater is subjected to ammonia distillation and oil-water separation sequentially; (2) coking wastewater after oil-water separation is subjected to water quality regulation; (3) coking wastewater after water quality regulation enters an iron+activated coke reactor for iron-carbon micro-electrolysis and suspended particles in the coking wastewater are absorbed; (4) coking wastewater flowing out of the iron+activated coke reactor is subjected to biological removal of nitrogen and organic pollutant removal treatment; (5) coking wastewater after biochemical treatment is subjected to coagulating sedimentation for mud-water separation; (6) mud after mud-water separation is subjected to thickening and dehydration treatment, and the coking wastewater after mud-water separation is subjected to deep ozonation treatment; the technology operates stably, the cost is low, the treatment efficiency is high, the load capacity resistance is high, and the operation is easy.

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 a multiple thread rapid connection type well drilling water-proof (sand-proof) pipe. The multiple thread rapid connection type well drilling water-proof (sand-proof) pipe comprises two water-proof (sand-proof) pipe units, a male connector, a female connector, a plurality of locating blocks, a plurality of screws and a seal ring, the male connector is welded to one water-proof (sand-proof) pipe unit, the female connector is welded to the other water-proof (sand-proof) pipe unit, and the male connector is provided with multi-head saw-tooth-shaped taper outer threads; the female connector is provided with taper inner threads with the same number and tooth shapes as those of the male connectors; the outer threads of the male connector are screwed in the inner threads of the female connector. According to the multiple thread rapid connection type well drilling water-proof (sand-proof) pipe, the male connector is connected with the female connector through the large-lead multi-head taper outer threads and the large-lead multi-head taper inner threads, so that the assembly distance between the male connector and the female connector and the number of assembly rotating circles are reduced, and connection speed is increased. Therefore, the multiple thread rapid connection type well drilling water-proof (sand-proof) pipe has the advantages of being stable in connection, high in assembly speed, large in rigidity, good in seal effect, high in load resistant ability, safe in construction, short in period, long in aging, capable of being repeatedly used and the like.

The invention aims to solve the problem of large deviation of the carbon-nitrogen ratio of the sewage caused by different construction degrees of rainwater and sewage diversion pipe networks in different regions. A system is provided with a normal operation mode, a low-carbon-nitrogen-ratio operation mode and a high-carbon-nitrogen-ratio operation mode. Sewage firstly passes through a pretreatmentunit to be subjected to grating, sedimentation and other treatment, enters an anaerobic tank, stays in the anaerobic tank for a period of time, then enters a regulating tank, then enters a high-loadpercolation coupling system regularly, quantitatively and intermittently through a water pump, sequentially passes through all stages of aerobic-facultative systems, and finally is discharged througha total discharge outlet.

A high intensity super thin stainless steel container can comprises the material feeding opening, material outlet, and the can of the brake valve, with the can made of the body, sealing head or sealing bottom formed by grid frame and inner wall shell and protective shield, the inner wall shell being thin wall stainless steel plate, can grid frame being radial steel frame, horizontal steel frame, sealing head steel frame and bottom sealing steel frame integrated, each frame being the big platform with steel, closely binding the inner shell or protective shield jointing seam, with heat preserving material between the inner wall shell and the outside protective shield. It is reasonable in design, high in strength, acid and sodium resistant, and corrosion prevention, with convenient application, safe, low running cost, free from other restraint condition and extensive application.

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.

The invention relates to a K-shaped supporting structure in a wall body. The K-shaped supporting structure is used in the wall body of a cold-bending thin-walled steel structure building system. The structure comprises a top guide beam which is arranged at the top of the wall body, a bottom guide beam which is arranged at the bottom of the wall body and is arranged in parallel to the top guide beam, and a plurality of wall upright posts which are arranged between the top guide beam and the bottom guide beam in parallel; the wall upright posts are respectively arranged in parallel to the top guide beam and the bottom guide beam. The supporting structure also comprises a wall transverse beam which is arranged between the top guide beam and the bottom guide beam and is vertically and fixedly connected with the wall upright posts; supporting cant beams are arranged between the top guide beam and the wall transverse beam as well as between the wall transverse beam and the bottom guide beam. Compared with the prior art, the K-shaped supporting structure in the wall body has the advantages of high load resistance, stable structure and the like.

The invention discloses a composite heat insulating building block with two heat insulating layers and one air thermal protective layer, comprising two groups of hollow concrete shells (1) and two groups of fly ash inorganic foaming bodies (2) filled in the concrete shell body hollow cavity, wherein the two groups of hollow concrete shell bodies (1) and fly ash inorganic foaming bodies (2) are fixedly connected via two parallel concrete connecting ribs (3); and the tops of the hollow concrete shells (1) are provided with raised strips A (4) and raised strips B (5), and the bottoms of the hollow concrete shells (1) are provided with grooves (6) in mortise and tenon adaptation with the raised strips A (4) and the raised strips B (5). The invention improves the anti-impact load capability of the wall body, reduces the utilization amount of slurry, has quick construction and good soundproof, heatproof and heat insulating effects.

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 discloses a hydraulic self-adaptive control system for an anti-falling device and a control method of the hydraulic self-adaptive control system. The hydraulic self-adaptive control system is not provided with a driving motor, cannot actively drive an external load to operate, only passively adapts to the change of the load, and utilizes the gravitational potential energy of separating from part of the load; the pressure energy and the kinetic energy are converted into pressure energy and kinetic energy of the hydraulic self-adaptive system. Therefore, the motion speed of the separated part load is controllable, and accelerated falling of the separated part load is prevented. Meanwhile, the hydraulic self-adaptive control system is high in load resistance and can adapt to changes of different loads in a large range, it is guaranteed that the pressure of the hydraulic system changes along with load force in a self-adaptive mode in the working range of equipment, and it is guaranteed that the anti-falling device controls the separated part of the loads to fall at the same set speed all the time.

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 provides an external gear-shaped reinforced composite pipe. The external gear-shaped reinforced composite pipe is characterized in that the external gear-shaped reinforced composite pipe comprises a pipe body, a spigot and a socket, wherein the spigot and the socket are arranged at the two ends of the pipe body respectively, the pipe body comprises an inner layer and an outer layer, the cross section of the inner layer is in a circular ring shape, the outer layer comprises a plurality of gear-shaped circular ring protrusions, and the gear-shaped circular ring protrusions are of hollow structures; and the cross section of the outer layer is in a gear ring shape, and the cross section of the spigot and the cross section of the socket are both in a ring shape. According to the external gear-shaped reinforced composite pipe, the outer layer of the pipe body is of a gear circular ring structure, the contact area of the pipe body and soil can be enlarged, good anti-sedimentation capacity is achieved, water and soil loss is prevented, higher rigidity and higher load resistance are achieved, the axial flexibility of traditional double-wall corrugations is reserved, stress is uniform, and collapse caused by local buckling deformation or reverse bending deformation is not liable to occur.

The invention discloses a PVC synthetic resin tile, and relates to the technical field of production of PVC synthetic resin tiles. The PVC synthetic resin tile is characterized by comprising 100 kg of PVC SG-5, 50 kg of one or more feed-back materials, 75 kg of calcium powder, 5 kg of a stabilizer, 6 kg of chlorinated polyethylene, 1.2 kg of PE (Polyethylene) wax, 0.7 kg of stearic acid, 1 kg of acrylics modifier, and 1.5 kg of engineering plastics. The PVC synthetic resin tile disclosed by the invention is reasonable in structure, clear in proportion, good in heat-conducting performance, light in weight, and large in loading capacity.

The invention relates to a method for treating vitamin B1 production waste water, which belongs to the technical field of the treatment of industrial sewage. The method comprises the following steps of: 1) adjusting the pH value of the original vitamin B1 production waste water; 2) performing anaerobic biochemical treatment; and 3) performing aerobic biochemical treatment. The vitamin B1 production waste water is treated by the method which combines anaerobic treatment and aerobic treatment, so that the method has the advantages of effectively treating high-concentration organic waste water produced in a vitamin B1 production process and greatly reducing environment pollution caused by waste water discharge, along with good effect, low cost and standard discharge.

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 relates to a landfill leachate treatment system and a landfill leachate treatment method. The landfill leachate treatment system comprises a tank, a flocculation reaction pond, a settling pond, a photo-catalytic oxidation reactor, an ultrafiltration membrane filter, an RO membrane filter and a resin adsorption column are successively communicated and arranged inside the tank and areadjacently connected through centrifugal pumps, the RO membrane filter is provided with a concentrated water outlet and a plain water outlet, the concentrated water outlet is communicated with the flocculation reaction pond so as to enable concentrated water to flow back, and the plain water outlet is communicated with the resin absorption column so as to enable plain water to be absorbed and purified by the resin absorption column and be discharged after reaching standard. The landfill leachate treatment system has the advantages that a plurality of treating units are assembled in the tank totreat landfill leachate in a concentrated manner, and the landfill leachate treatment system small in occupied area and high in movability can be moved among various waste transfer stations conveniently and flexibly; the treating units can be flexibly assembled according to water quality variation of the landfill leachate, a water discharging volume of the membrane filter can be adjusted, and thelandfill leachate treatment system is adjustable in operation time, high in anti-load capacity and high in seasonal applicability.

The invention discloses a high-strength saline-alkali soil salt draining filter tube and a manufacturing method thereof. The salt draining filter tube comprises a chlorinated polyvinyl chloride tube layer at the outer layer and a polyvinyl chloride tube layer at the inner layer, wherein the chlorinated polyvinyl chloride tube layer comprises the following components: chlorinated polyvinyl chloride, polyvinyl chloride resin, organic fibers, calcium carbonate, dibasic lead phosphite, calcium stearate, zinc oxide, thiodipropionic acid and chlorinated paraffin; and the polyvinyl chloride tube layer comprises the following components: rigid polyvinyl chloride, polyvinyl chloride resin, calcium carbonate, zinc stearate, vinyl ester resin and talcum powder. The filter tube is high in strength, isgood in compression resistance, and has excellent flexibility. Water scales are very difficult to form as a result of surface tension of the inner wall of the filter tube, so that salt draining and conveying ability is favorably improved.

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.