35results about How to "Realize reasonable reuse" patented technology

The invention discloses a preparation method for water purifier capable of synchronously removing ammonia nitrogen and phosphorus in waste water, which belongs to the water treatment chemicals production technology in the field of environmental protection. The preparation method for the water purifier comprises the following steps of (1) placing mineral powder containing magnesium and calcium with given percentage amount into steel acid-washing waste liquid to have chemical reaction with hydrochloric acid in the waste liquid; (2) oxidizing reacted products, oxidizing ferrous ions to be ferric ions, and generating ferric chloride solution containing magnesium and calcium ions; and (3) aging and filtering the ferric chloride solution containing the magnesium and the calcium ions, evaporating and concentrating the solution when necessary, and packing the product after the product meets the index requirements. Products prepared by the preparation method can conform to the category II standard of water purifier ferric chloride of GB4482-2006, have a remarkably effect for synchronously removing the ammonia nitrogen and phosphorus for industrial sewage, agricultural breeding waste water and domestic waste water while having all performance characteristics of the ferric chloride, the resource-oriented comprehensive utilization of the steel acid-washing waste liquid can be realized, and a purpose for controlling waste through waste can be realized.

The invention provides a layered double hydroxide (LDH) modified super-hydrophobic cloth for oil-water separation and a preparation process thereof. LDH is generated on the surface of commercial cloth by a hydrothermal method in an in-situ manner so as to improve the roughness of the cloth; then a substance with low surface energy is modified to obtain the super-hydrophobic cloth. The super-hydrophobic cloth prepared by the process comprises a cloth fiber layer and a super-hydrophobic LDH sheet layer, wherein the super-hydrophobic LDH sheet layer is formed by an LDH nanosheet which is irregularly and vertically attached on the cloth fiber layer, the chemical structural formula of the LDH nanosheet is [Mg<2+>(1-x)Al<3+>x(OH)2]<x+>[NO3<->]x.mH2O, wherein x represents one numerical value between 0 and 1, and the thickness of the LDH sheet layer is 300-1000nm. The prepared cloth has a contact angle more than 150 degrees, has good oil-water separation capability, can achieve high separation efficiency (up to 97%) to oil water mixture with different ingredients and different volume ratios, and has low relative standard deviation less than 0.7%. The LDH modified super-hydrophobic cloth has important significance on separation of oil water mixture, treatment on pollution of rivers, lakes and the sea caused by petroleum and non-insoluble oil stain.

Offal and waste and old glass fiber-reinforced plastic garbage produced in production are increased rapidly with continuous development of a glass fiber-reinforced plastic industry, and thus severe pollution on the air environment and the earth's surface environment is produced. The invention provides a recycle method of glass fiber-reinforced plastic waste, and a fiber-reinforced plastic (FRP) / polyethylene (PE) plastic alloy material. The recycle method of glass fiber-reinforced plastic waste has simple production processes. The recycle method of glass fiber-reinforced plastic waste realizes reasonable resource utilization. Through recycle method of glass fiber-reinforced plastic waste, FRP, PE and a grafting agent are mixed according to a certain part ratio and the mixture is subjected to melt grafting in a high-temperature room to produce a graft copolymer (FRP / PE) material, wherein the graft copolymer (FRP / PE) material is the fiber-reinforced FRP / PE plastic alloy material.

The invention provides a method for constructing artificial islands with reefs from urban construction waste. The method includes steps of 1, recycling the urban construction waste; 2, bonding and pouring the urban construction waste by the aid of cement to obtain large cement brick specimens; 3, transporting the cement specimens to coastal regions by the aid of unidirectional logistics empty materials; 4, transporting the cement specimens to the reefs; 5, constructing the islands by the aid of cement bricks in falling tide periods. The method has the advantages that problems can be effectively solved under the current conditions that urban construction waste is incompatible with urban development, territorial dispute is intensified, territorial sea resources urgently need to be developed and sustainable development gradually becomes the trend, and the method makes a due contribution to quick and sound urban development and national strategic development.

The invention discloses an umbrella for preventing bird excrement and collecting rainwater and bird excrement. The bird excrement can be effectively prevented from falling on the bodies and vehicles,the rainwater and bird excrement can be collected, and spreading of the avian influenza is effectively prevented. The umbrella comprises umbrella rods, a rib, an umbrella cover, a water collection device and a bird excrement removal device; the rib comprises two rings and multiple supporting racks; the water collection device comprises a water collection tank, a water pipe and a water storage device; the bird excrement removal device comprises a water inlet pipe, a bird excrement wipe-out device and a magnetic powder guide device; the bird excrement wipe-out device comprises brushes located atthe two sides of the umbrella cover, one end of the water inlet pipe is embedded in the brush at the inner side of the umbrella cover, and the water inlet pipe embedded in the brush at the inner sideof the umbrella cover is provided with multiple water spray nozzles; a layer of magnetic plate is arranged on a cover plate of the brush at the inner side of the umbrella cover, and the magnetic powder guide device is connected to a cover plate of the brush at the outer side of the umbrella cover.

The invention provides an anti-crack cement mixture and a preparation method thereof, and relates to the technical field of building material production, wherein the anti-crack cement mixture comprises the following components in parts by weight: 46-78 parts of cement, 20-32 parts of sand, 18-26 parts of oil shale ash, 5-8 parts of mineral powder, 3-7 parts of anhydrite, 0.6-3.2 parts of fiber and0.5-1.2 parts of an additive. The preparation method of the anti-crack cement mixture comprises the steps of burdening, grinding and mixing. By adjusting the components of the anti-cracking cement mixture, the prepared cement mixture has good anti-cracking performance.

The invention relates to a water purifier which comprises a cabinet, a controller, a water supply pipeline, a purified water making pipeline, a domestic water pipeline, a concentrated water recycling pipeline and a depressurization safe water draining pipeline. The water supply pipeline, the purified water making pipeline, the domestic water pipeline, the concentrated water recycling pipeline and the depressurization safe water draining pipeline are arranged in the cabinet, a first pressure sensor and a first electromagnetic valve are arranged on the water supply pipeline, the purified water making pipeline comprises a filter element set, a water storage pressure barrel and a purified water faucet, and a pressurizing pump is arranged on a pipeline communicating a PVDF ultrafiltration membrane filter element and a RO membrane filter core; a water inlet of a postpositive activated carbon filter element is communicated with the water storage pressure barrel while a water outlet of the same is communicated with the purified water faucet, and the concentrated water recycling pipeline comprises a concentrated water chromatography tank, a throttling valve and a water quality detector. Through the technical scheme, tap water waste caused by free discharging of concentrated water in the process of purified water making in the prior art can be reduced, and artificial participation can be reduced.

The present invention discloses a method for processing high-protein rice flour by using broken rice and relates to the technical field of high-protein food processing. The method comprises the following steps: (1) soaking and pulping; (2) instantaneous high-pressure treating; (3) alkali treating; (4) enzyme treating; and (5) drying and milling. The broken rice is used as a raw material to prepareprotein rice flour, reasonable reuse of the broken rice as a by-product of rice processing is realized, and economic value of the broken rice is improved. Besides, screening and combining of an extracting technology enable protein content in the prepared protein rice flour to be greatly improved, and a technical problem of low protein content in conventional extraction methods is solved.

The invention provides a layered double hydroxide (LDH) modified super-hydrophobic cloth for oil-water separation and a preparation process thereof. LDH is generated on the surface of commercial cloth by a hydrothermal method in an in-situ manner so as to improve the roughness of the cloth; then a substance with low surface energy is modified to obtain the super-hydrophobic cloth. The super-hydrophobic cloth prepared by the process comprises a cloth fiber layer and a super-hydrophobic LDH sheet layer, wherein the super-hydrophobic LDH sheet layer is formed by an LDH nanosheet which is irregularly and vertically attached on the cloth fiber layer, the chemical structural formula of the LDH nanosheet is [Mg<2+>(1-x)Al<3+>x(OH)2]<x+>[NO3<->]x.mH2O, wherein x represents one numerical value between 0 and 1, and the thickness of the LDH sheet layer is 300-1000nm. The prepared cloth has a contact angle more than 150 degrees, has good oil-water separation capability, can achieve high separation efficiency (up to 97%) to oil water mixture with different ingredients and different volume ratios, and has low relative standard deviation less than 0.7%. The LDH modified super-hydrophobic cloth has important significance on separation of oil water mixture, treatment on pollution of rivers, lakes and the sea caused by petroleum and non-insoluble oil stain.

The invention relates to a plant fiber / waste FPR composite material and a preparation method thereof. The preparation method comprises the following steps: dispersing 50-80% of plant fibers and 5-20% of PVA fibers in water in percentages by weight and uniformly stirring, then adding 10-30% of waste FPR powder wetted by a wetting agent in percentages by weight, and uniformly stirring to obtain a fluid to be treated; and carrying out papermaking and molding on the fluid to be treated to obtain wet paper sheets, and squeezing and drying to obtain the plant fiber / waste FPR composite material. According to the preparation method disclosed by the invention, the waste FPR and the plant fibers serve as main materials, PVA fibers serve as adhesives, so that the plant fibers and the waste FPR are combined well, and the strength property of the material is improved effectively; the wetting agent facilitates dispersion of the waste FPR in a system, properties of the various components are played fully, the composite material with good properties is prepared by a wet-method papermaking technology, and reasonable reusing of resources is realized; and the preparation method is simple and feasible, and the recycling rate is high and can reach 100%.

The invention relates to the field of aerogel, in particular to a glass product pretreatment device for producing aerogel glass. The technical aim to be achieved is to provide the glass product pretreatment device for producing the aerogel glass. According to the technical scheme, the glass product pretreatment device for producing the aerogel glass comprises a bottle body treatment unit, a crushing unit, a jarring unit and a uniform mixing unit, and the bottle body treatment unit is connected with the crushing unit; the crushing unit is connected with the jarring unit; and the crushing unit is connected with the uniform mixing unit. According to the device, through secondary processing of waste glass bottles, after advertising trademarks on the side faces of the waste glass bottles are removed, glass powder obtained by crushing is fully mixed with aerogel, a semi-finished product of inorganic non-metal aerogel can be obtained, and reasonable reutilization of resources is realized.

The invention discloses a multi-stage waste incineration purification treatment technology. The specific technological process comprises the following steps that heavy metal and dioxin in incinerationflue gas are treated, specifically, a certain amount of limestone and calcium chloride are added into waste to be mixed and stirred evenly, HCl in the waste can be effectively removed, and generationof Cl2 is further reduced, so that generation of the dioxin is reduced, and pretreated waste is obtained; the pretreated waste is placed into an incinerator to be incinerated, oxygen is blown in fromthe bottom of the incinerator through an air blower in the incinerating process, stirring and incinerating are conducted at the same time in the incinerating process, sufficient burning of the wasteis facilitated, generation of the dioxin is reduced, and meanwhile an inhibitor is constantly sprayed from the top of the incinerator; and a dust removing cloth bag of a bag-type dust remover is filled with a mixture of activated carbon powder and quicklime. According to the multi-stage waste incineration purification treatment technology, alkalization treatment is conducted before the waste is incinerated, chlorine sources in the waste can be reduced, meanwhile oxygen is blown into the incinerator, so that the waste is burned sufficiently, and generation of the dioxin is reduced.

The invention discloses a biomass combustion boiler. The boiler comprises a boiler body, a gas combustion chamber, a gasification chamber, an air supply pipeline, a preheating water tank and a chain grate stoker; the gas combustion chamber is arranged in the boiler in a penetrating mode, a boiler arch is arranged between the gasification chamber and the gas combustion chamber, the gas combustion chamber communicates with a waste gas exhaust pipeline, the two ends of the air supply pipeline communicate with the gasification chamber and the gas combustion chamber correspondingly, and the air supply pipeline surrounds the peripheral wall of the gasification chamber; the preheating water tank is arranged on the outer wall of the waste gas exhaust pipeline and communicates with the boiler; a carbon recovery chamber is arranged below the boiler arch and the gasification chamber, and a carbon inlet is formed in the position, located at the output tail end of the chain grate stoker, of the carbon recovery chamber; a vaporizing pipeline surrounds the peripheral wall of the boiler arch or the gasification chamber, the water inlet end of the vaporizing pipeline communicates with the preheating water tank, and the steam outlet end of the vaporizing pipeline is mounted in the carbon recovery chamber; and the carbon recovery chamber communicates with the gas combustion chamber through a gas suction pipeline. The combustion boiler can recover high-temperature waste heat of carbon production, and also realizes waste heat recovery of gas combustion waste gas.

The invention belongs to the technical field of industrial wastewater treatment adsorbents, and particularly relates to an adsorbent capable of removing heavy metals in industrial wastewater and a preparation method of the adsorbent. The preparation method of the adsorbent comprises the following steps: mixing and stirring 10-20wt% of sodium hydroxide and 80-90wt% of water glass until sodium hydroxide particles are completely dissolved to obtain an alkali activator; mixing 55-65 wt% of sawdust powder, 20-30 wt% of steel slag powder and 10-20 wt% of the alkali activator, and grinding for 0.5-1h to obtain mixed powder; subjecting the mixed powder to mechanical pressing and forming under a pressure of 100-150 MPa to obtain a steel slag sawdust geopolymer precursor; drying the geopolymer precursor at 50-80 DEG C, then carrying out heat preservation for 1-2.5 hours at 600-850 DEG C under the protection of nitrogen to obtain a steel slag sawdust carbon composite material; and washing the steel slag sawdust carbon composite material with deionized water until the pH value of the washing water is 5-7 to obtain the adsorbent. The preparation method disclosed by the invention has the advantages of low cost, simple process, easiness in industrial production and the like, and the prepared easily recycled adsorbent for removing the heavy metals in the industrial wastewater has a good adsorption effect on the heavy metals and is easy to recycle.

The invention discloses a classical garden rockery suitable for cultivating green plants and a processing method of the rockery, and relates to the technical field of rockery processing. The rockery is prepared by processing the following raw materials in parts by weight: 30-80 parts of blast furnace expanded slag, 10-50 parts of fly ash, 10-50 parts of Portland cement, 5-20 parts of lignocellulose, 5-20 parts of asbestos velvet, 1-10 parts of a cement admixture, 1-10 parts of a binder, 1-10 parts of a lubricant, and 100-200 parts of water. The rockery is prepared by using industrial waste blast furnace expanded slag and fly ash as main materials, and cooperating with Portland cement and other auxiliary materials, the rational reuse of industrial waste blast furnace expanded slag and fly ash is realized, the prepared rockery has good appearance quality, strong environmental protection, and excellent compression resistance, and cultivation of large and medium-sized green plants on the rockery is conducive.

The invention discloses an organic loss-controlled fertilizer prepared by mushroom dreg, which is prepared from, by weight, 30-40 parts of mushroom dreg, 20-30 parts of biological carbon powder, 15-20parts of organic amino acid powder, 8-12 parts of organic humic acid, 5-10 parts of sodium silicate, 10-15 parts of potassium fulvic acid, 4-8 parts of sodium carbonate dodecylbenzene, 3-6 parts of bio-enzyme, and 2-5 parts of chelating zinc. The fertilizer takes mushroom dreg as the main raw material, the reasonable reuse of the resource is realized; the biological carbon powder, the organic amino acid powder, and the organic humic acid are used as ingredients; the waste straw is recycled into wealth, thus the environment pollution is solved, rich organic matters are provided for the soil, the soil acidity or alkalinity is improved, the exchange of soil cation and anion is increased to promote the crops absorption; the fertilizer belongs to environment-friendly fertilizer.

The invention relates to a biofilter purification method for benzoic acid. The method comprises the following steps: (1) residual phase waste water after toluene extraction of benzoic acid production waste water is blended with domestic sewage, and a mixed solution is formed; (2) the mixed solution after blending is sent into a novel multifunctional purifying groove, primary anaerobic acidizing hydrolysis treatment is carried out for the mixed solution firstly, then a secondary aerobic treatment is carried out, finally deposition and disinfection treatment is carried out, and the solution is discharged from the novel multifunctional purifying groove. The benzoic acid waste water which is treated after twice extraction by toluene is mixed with the domestic sewage for adjusting, and biochemical treatment is continuously carried out in the biofilter; water qualities of discharged water in different treatment conditions with different volume ratios between the benzoic acid waste water and the domestic sewage are investigated, the water qualities can meet the national town sewage discharge primary standard, the treatment effect of NH4+-N reaches the secondary standard, so that good degradation and removal effects of low concentration benzoic acid waste water through the primary anaerobic and secondary aerobic biofilter are verified.

The invention discloses a non-toxic breathable rigid plastic scorpion nest for scorpion breeding and relates to the technical field of scorpion breeding. The non-toxic breathable rigid plastic scorpion nest for scorpion breeding is made from the following raw materials comprising, by weight, 15-20 parts of acrylonitrile-butadiene-styrene copolymer, 10-15 parts of polyvinyl chloride paste resin, 5-10 parts of hydrogenated rosin glyceride, 4-8 parts of pulverized fuel ash, 3-6 parts of wheat straw dry powder, 3-6 parts of pine needle powder, 2-4 parts of turpentine, 2-4 parts of wheat bran, 1-2 parts of superfine polytetrafluoroethylene powder, 1-2 parts of hydrogenated palm oil, 1-2 parts of asbestos wool, 0.5-1 part of cooking wine, 0.5-1 part of bitter gourd powder, 0.5-1 part of nanometer aluminum oxide and 0.5-1 part of nanometer titanium dioxide. The non-toxic breathable rigid plastic scorpion nest for scorpion breeding has the advantages of being light in weight, not prone to damage and long in service life; and besides, the raw materials comprise the vegetal wheat straw dry powder, the pine needle powder and the wheat bran, the cost is lowered, and meanwhile the vegetal wheat straw, the pine needle and the wheat bran are reasonably reutilized.

The invention discloses a method for preparing a function additive by using coconut residues serving as byproducts, and relates to the technical field of drink processing byproducts. The method mainly comprises the following steps: (1) carrying out freeze drying on the coconut residues, and preparing powder; (2) carbonizing the coconut residues at high temperature; (3) modifying the coconut residues. The function additive is prepared through the method; reasonable reuse of the coconut residues which are coconut juice processing byproducts is realized; the economical value of the coconut residues is increased; the prepared function additive can be used as a wear resisting agent added into a plastic product preparation raw material, so as to improve the wear resistance of a prepared plastic product to prolong the service life of the plastic product based on the wear resistance.

The invention discloses a method for optimizing the capacity of a 5G communication system based on an improved bat algorithm. The 5G communication system includes a cellular network terminal (CUE) and a D2D mobile terminal (DUE). The method includes: (1) initializing basic parameters, including cell radius , iteration times, etc.; (2) Randomly initialize and reverse-initialize the bat population, and each individual bat represents a channel resource allocation scheme; (3) Solve the fitness value of the bat population; (4) Select excellent bat individuals according to the fitness value as Initial solution; (5) Perform cross-mutation operation on the bat population to generate a new population; (6) Mix the population to select the optimal solution; (7) Determine whether the iteration is over, if not, return to step (4), If the iteration is complete, the method ends, and the resource allocation scheme with the largest system capacity is obtained. The present invention can select the best D2D user combination, realize reasonable multiplexing of communication network resources, and thereby improve system capacity.

The invention relates to a method for catalytic preparation of graphitized particles by cationic resin for treating industrial inorganic wastewater. The method includes steps: S1, subjecting industrial inorganic wastewater to pretreatment of filtration and concentration, adding cationic resin into pretreated industrial inorganic wastewater, and well mixing for ion exchange reaction; S2, filteringa mixture after reaction, and subjecting obtained solid to high-temperature calcination under inert gas shielding to obtain a crude product; S3, subjecting the crude product obtained in the step S2 towashing, filtering and drying to obtain graphite particles. The method has advantages that efficient recycling of industrial inorganic wastewater is realized to some extent, and high-attached-value graphite is produced.

The invention discloses urban intelligent water affair water supply equipment which comprises a toilet shell fixedly arranged on the ground; two toilet cavities which are symmetrical in left-right position and provided with forward openings are formed in the toilet shell; and the bottoms of the toilet cavities are fixedly connected with closestools. According to the urban intelligent water affair water supply equipment, a rainwater collecting tank is arranged in the equipment, natural resources in rainy days can be collected, filtered and reused for toilet flushing and simple cleaning in public places, so that reasonable recycling of limited resources is achieved, the environment is protected, and green development is achieved; and a filtering device is arranged in the equipment, impurity garbage of collected rainwater can be removed through centrifugal movement, the finally used water resource can be used for simply cleaning the skin of people, and meanwhile, the internal structures of the closestools are protected, so that the service life of the closestools is prolonged and the maintenance cost is reduced by flushing the closestools with the water without impurities.

The invention discloses a method for preparing a function additive by using coconut residues serving as byproducts, and relates to the technical field of drink processing byproducts. The method mainly comprises the following steps: (1) carrying out freeze drying on the coconut residues, and preparing powder; (2) carbonizing the coconut residues at high temperature; (3) modifying the coconut residues. The function additive is prepared through the method; reasonable reuse of the coconut residues which are coconut juice processing byproducts is realized; the economical value of the coconut residues is increased; the prepared function additive can be used as a wear resisting agent added into a plastic product preparation raw material, so as to improve the wear resistance of a prepared plastic product to prolong the service life of the plastic product based on the wear resistance.

The invention belongs to the technical field of concrete highways, and particularly relates to a highway concrete formula and a processing technology, and the highway concrete processing technology comprises the following steps: S1, material screening: firstly, carrying out particle diameter screening on slag aggregates, steel slag aggregates and sand in fine materials; s2, building waste recycled aggregate preparation: selecting waste air bricks of a construction site, transferring the air bricks to an aggregate preparation site, conveying the air bricks into aggregate production equipment through a conveying belt, crushing and finely crushing the air bricks by the aggregate production equipment, spraying an organic silicon waterproof and oil-resistant agent after crushing, and drying to obtain the building waste recycled aggregate. A layer of organic silicon waterproof oil-resistant agent film is attached to the surface of the recycled aggregate, so that the water absorption performance of the recycled aggregate is reduced; and S3, preparing road concrete from the recycled aggregate with the organosilicon waterproof and oil-resistant agent film prepared in the S2 according to a ratio, and carrying out a slump test on the road concrete before laying.

The invention belongs to the technical field of industrial wastewater treatment adsorbents, in particular to an adsorbent capable of removing heavy metals in industrial wastewater and a preparation method thereof. The preparation method of the adsorbent comprises mixing and stirring 10-20wt% sodium hydroxide and 80-90wt% water glass until the sodium hydroxide particles are completely dissolved to obtain an alkali activator; mixing 55-65wt% sawdust powder, 20 ~30wt% steel slag powder and 10~20wt% alkali activator are mixed, and ground for 0.5~1h to obtain mixed powder; the mixed powder is machine-pressed under a pressure of 100~150MPa to obtain steel slag sawdust geopolymer precursor; After drying the precursor at 50-80°C, keep it at 600-850°C under nitrogen protection for 1-2.5 hours to obtain the steel slag sawdust-carbon composite material; wash the steel slag sawdust-carbon composite material with deionized water until the pH of the washing water is 5-7 hours, the adsorbent can be obtained. The preparation method of the invention has the advantages of low cost, simple process, and easy industrial production, and the prepared and easily recycled adsorbent for removing heavy metals in industrial wastewater has good adsorption effect on heavy metals and is easy to recycle.

The invention discloses a method for preparing a garden rockery by utilizing construction waste regeneration, which relates to the technical field of rockery processing, and comprises the following steps: (1) manufacturing a mold, (2) crushing construction waste, (3) mixing materials, (4) carrying out pouring, (5) carrying out structural densification treatment, (6) carrying out demolding, and (7)carrying out modifying. According to the invention, the construction waste is used as a main material, and auxiliary materials such as polycaprolactone and the like are used for processing to preparethe rockery, so that the reasonable reutilization of the construction waste is realized, and the manufactured rockery is good in appearance quality, high in environmental protection property, good incompression resistance and high in water-retaining property, and facilitates cultivation of green plants on the rockery, so that the environment is beautified and purified.

The invention discloses a method for preparing a high-performance elastomer from waste polyurethane, which belongs to the technical field of polyurethane processing, and comprises the following steps:(1) microcrystalline cellulose treatment, (2) raw material weighing, (3) mixing treatment, and (4) extrusion molding. The elastomer provided by the invention has the advantages of strong shock absorption and impact resistance, low rebound resilience, low overall cost, high compatible bonding strength with rubber, plastic and other polymer matrix materials, and good comprehensive quality.

The invention discloses a preparation method of the modified plastic particles containing waste polyurethane. The preparation method comprises the following steps of (1) carrying out surface treatmenton the carbon nanotubes; (2) preparing a mixed solution A; (3) preparing a mixture B; (4) weighing the raw materials; (5) preparing a premix C; (6) preparing a mixed material D; and (7) preparing thefinished product modified plastic particles. According to the method, the reasonable reutilization of the polyurethane waste material is well achieved, meanwhile, the quality of the PVC waste material and the polyurethane waste material composite plastic is improved, the environment-friendly effect is good, the environmental protection is improved, and the prepared modified plastic particles aregood in mechanical quality and high in comprehensive performance, and are high-temperature and aging-resistant.