108results about How to "Promote the development of circular economy" patented technology

The invention relates to a multi-functional household garbage classified putting device which comprises putting collection rooms, an inductive control system, a language broadcasting system, a camera shooting acquisition system, a classified collection transportation device, a classified material push unloading device, classified collection storage garbage cans, an overflow alarm and automatic box changing can adjusting system, an environment-friendly scorecard account management system, an accumulated score scanning and code printing system, a bulk object recycling device, an automatic fly eradication and deodorization device, a reserved door-to-door service system, a delivery deposit device, a lost object storing and finding device, an emergency help seeking and calling system, an advertisement circulating playing system, an electronic screen turn-on and turn-off control system, a free wireless network (Wifi), an automatic solar power generation and power distribution system, a microcomputer center control system, a back-stage management operating system, and other ancillary facilities and devices. According to the multi-functional household garbage classified putting device, the classified collection of household garbage is completely achieved, and a plurality of people-oriented services are provided for community residents.

The invention discloses a board-mixing structure assembly type house and a building method thereof. The house is characterized in that an inner wall board, an outer wall board and superimposed floor boards which are prefabricated are connected with constructional columns and floors which are cast in site so as to form a whole; and the inner wall board, the outer wall board, the superimposed floor boards and the constructional columns are prefabricated or cast by adopting green concrete. The house can improve the industrial level of house construction and the whole level of house buildings greatly and reduce the construction difficulty and cost, is beneficial to solving the node waterproofing problem, improving the thermal insulation level and durability of thermal insulating materials and reducing the laying of reinforcing steel bars on the floors and laying of templates, and is beneficial to realizing standardized production and greatly shortening the construction period.

The invention discloses a resource utilization type steel-slag concrete. The resource utilization type steel-slag concrete is characterized in that the volume weight is 2400 -2600kg/m3, and the raw material components and the weight part of each component based on the mass percentage of cement are as follows: 1.000 parts of cement, 0.300-0.350 parts of mineral powder, 0.350-0.400 parts of coal ash, 0.100-0.150 parts of steel-slag fine powder, 1.300-1.650 parts of steel-slag fine aggregate, 1.400-1.900 parts of steel-slag rough aggregate, 2.000-2.200 parts of sand, 3.200-3.450 parts of broken stone, 0.700-0.900 parts of water, and 0.015-0.025 parts of additive. In comparison with the normal concrete, the resource utilization type steel-slag concrete provided by the invention has the advantages that the total content of solid wastes such as steel-slag and coal ash is higher than 30%; with the adoption of the industrial solid slag, the additional value is enhanced, the production cost is reduced, and meanwhile, the environmental problem is solved; the prepared concrete has good compactness and excellent mechanical property.

The invention discloses a method for combined preparation of pineapple polyphenol and juice by taking pineapple peel as main material and application thereof. The method includes that pineapple peel is cleaned, pressed and separated, so as to respectively obtain pineapple peel slag and pineapple peel juice; the pineapple peel juice is subject to macroporous resin column absorption, powered activated carbon absorption, filtering and the like, so as to obtain clear juice with extremely low clear and brown stain degree; the pineapple peel slag is subject to alcohol digestion, vacuum concentration, dilution, macroporous resin column absorption and the like, so that pineapple polyphenol can be absorbed into the macroporous resin; the macroporous resin column used for absorbing polyphenol substance in the pineapple peel juice and pineapple peel slag digestion solution is eluted by alcohol solution, the elution is subject to methylene dichloride extraction, ethyl acetate extraction, concentrated drying and the like, so that pineapple polyphenol with purity more than 90% can be obtained and extraction ratio is more than 2.5g/kg. The invention has the characteristics of easy industrializedproduction, high yield, high production purity, obvious co-production economic benefit and has important significance on promoting recycling economy development.

The invention discloses a comprehensive multi-gas source low-concentration SO2 fume recycling acid-making technological process. The fume is mixed in a pressure adjusting gas distribution mode, is subjected to washing by using a high-efficiency washer and deep purification by using a combined purification tower, and is subsequently fed into a fume desulfurization system, and the tail gas is fed into a chimney to discharge out. The high-concentration SO2 which is produced from desulfuration and desorption is diluted by air or a part of pre-washed wet fume and is fed into an acid-making system, a finished product sulfuric acid is produced, the sulfuric acid tail gas is fed back to the combined purification tower and the fume desulfurization system, and the tail gas is discharged out when being subjected to up-to-standard desulfurization. The process is a comprehensive sulfur resource recycling technique that a multi-gas source mixed conveying technique, an SO2 recycling technique which employs an absorption-desorption method and a conversion-absorption acid-making technique are combined together, has the characteristics of high sulfur recycling rate, optimization in equipment and investment and low operation expense, can realize clean production and comprehensive recycling of SO2, prompts the development of circular economy of companies, and can be widely applied to comprehensive treatment on fume with low-concentration SO2 in industries of colored metal, steel and iron, thermal power, chemistry and the like.

An electroplating sludge resource utilization method comprises the following steps: (1) pretreatment: separating heavy metal elements from electroplating sludge by a wet process, and neutralizing the electroplating sludge with lime or limestone, to obtain an electroplating sludge waste residue with calcium sulphate dihydrate as a main component; (2) preparation of raw material: replacing all gypsum and all iron raw materials in raw material ingredients with the electroplating sludge waste residue, or replacing a part of gypsum and a part of iron raw materials with the electroplating sludge waste residue, then blending with gypsum and vanadine, and powder-grinding to prepare the raw material for producing a calcium sulphoaluminate or calcium sulphoferrate clinker; and (3) baking for 0.5-1 h at the temperature of 1250-1400 DEG C. The electroplating sludge is used as the raw material containing polymetal and is subjected to resource utilization to produce two kinds of materials, namely a corresponding metal and/or metal salt material and a gypsum-based building material, so the problem of pollution in electroplating industry is facilitated to be solved, and the implementation of circular economy development is facilitated.

The invention provides a method for fertilizer granulation through molasses alcohol fermentation liquor. Before granulation, the molasses alcohol fermentation liquor is mixed with a macro-element chemical fertilizer raw material, a medium-element chemical fertilizer raw material, a microelement chemical fertilizer raw material and organic raw materials so that crystal nuclei of particles can be formed, and then granulation is conducted in a granulation device. According to the method, the granulation efficiency of fertilizer is improved to a great extent, the production efficiency of the fertilizer is improved, the production cost is reduced, and clean production through comprehensive use of the molasses alcohol fermentation liquor is achieved.

The invention provides a material utilization method for electroplating sludge. The method comprises the following steps: (1) pretreatment; (2) preparation of a gypsum material; (3) preparation of a clinker; and (4) preparation of an ultrafine gypsum filling material or anhydrite gelling material. According to the invention, a sulfuric acid leaching method and a biological leaching method belonging to mature wet processes are employed for pretreatment and separation of heavy metals in electroplating sludge, and lime or limestone is used for neutralization, so most valuable metals or heavy metals can be recovered at low cost for preparation of corresponding metal or metal salt materials, high-purity metal or metal salt materials or raw materials can be easily obtained, and waste sludge residues with dihydrate gypsum as a main mineral, i.e., a usable gypsum-based resource, can be easily obtained; and waste residues of electroplating sludge are not discharged, so environmental pollution and hidden troubles caused by the waste residues are thoroughly eliminated and environmental protection is benefited.

The invention provides a bio-organic fertilizer employing pig dung as a raw material and a preparation method therefor. The bio-organic fertilizer comprises the following steps: firstly, pig dung is pretreated, and then chicken manure, fermentation agents and deodorizing fungicides are added; the C/N ratio is adjusted to 25-30:1 by utilization of urea or ammonium sulfate, the pH value is adjusted to 5.5-8.5 by utilization of calcium superphosphate the moisture content is kept at 50-60%, the materials are subjected to fermentation decomposition and then are crushed and sieved and then functional microbial agents are added; secondly, fermentation is carried out by utilization of compost fermentation. The beneficial effects are that firstly, the prepared bio-organic fertilizer raises output and economic benefits of crops of watermelons, bananas and the like greatly; the prepared bio-organic fertilizer improves physical, chemical and biologic properties of soil effectively; the agricultural product quality is raised; fourthly, development of agriculture and animal husbandry circular economy is promoted.

The invention relates to a high-quality efficient double-forming-machine parallel closed-loop full-automatic building block production line. The production line comprises a material distributing and stirring system, two sets of forming machine plate ascending systems, a program-controlled transferring main and auxiliary kiln car, a plate descending and stacking system and a plate returning and transferring system. According to the production line, two high-strength and high-quality building block main engines are adopted, and a heavy-load coordinate type stacking robot is adopted in the plate descending and stacking system, two independent single forming machine production lines in traditional significance are designed into the efficient double-forming-machine parallel dicaryon closed-loop full-automatic building block line saving energy. Compared with the prior art, the production line optimizes the process mode of the stacking system, the production efficiency is high, equipment investment, capital construction investment, personnel investment and energy consumption are greatly reduced under the circumstance that the productivity is equal to that of the independent double lines, and the human resource cost is saved.

The invention provides a method for disposal of solid waste by a ceramsite kiln and a ceramsite kiln for disposal of solid waste. The ceramsite kiln includes a drying kiln and a calcination rotary kiln. The method includes: preparing ceramsite raw materials, which include solid waste; drying and calcining ceramsite, and enabling circulation flow of the generated flue gas along the drying kiln-calcination rotary kiln-drying kiln; cooling and discharging ceramsite; and disposing flue gas and tail gas. Specifically, the solid waste includes at least one of fly ash or organic solid waste; fly ashis selected from the incineration ash of at least one of domestic garbage, industrial waste or medical waste; the organic solid waste is selected from at least one of polluted soil, oily sludge, sludge obtained by chemical plant sewage treatment, medical solid waste or industrial waste residue. The method adopts fly ash and organic solid waste as the ceramsite raw materials, consumes fly ash and organic solid waste in the ceramsite manufacturing process, not only solves the hidden trouble of pollution caused by fly ash and organic solid waste, but also solves the cost problem caused by the limitation of ceramsite raw materials.

The invention discloses a process technology for producing a seedling-growing medium by using tobacco wastes; the process technology comprises the following steps: collecting and crushing the tobacco wastes, separating under high temperature and high pressure, fermenting, fumigating, and disinfecting, so as to obtain a thoroughly decomposed material; uniformly mixing a thoroughly decomposed material, perlite and vermiculite according to a mass ratio of (60-70):(10-30):(10-30), so as to obtain the seedling-growing medium; as turf is replaced by the tobacco waste thoroughly decomposed material, and the perlite and the vermiculite are added according to a certain ratio, the seedling-growing medium provides an excellent nutrition resource, the production cost is reduced, and the deficiency of the non-renewable resource, namely the turf is reduced, the comprehensive utilization of the resource is realized, and the development of the local recycling economy is improved.

The invention discloses a slag based mesoporous material and a preparation method thereof; the slag based mesoporous material is prepared by putting raw material slag, sodium hydroxide water and pore increasing agent glucose into a mixing device for mixing, using a die for molding, curing, and burning; and taking the adding quantity of the slag mass as a basis, the adding quantity of the sodium hydroxide is 6% of the slag mass, the adding quantity of the pore increasing agent glucose is 3%-6% of the slag mass, and the ratio of water adding quantity to slag mass is 0.24-0.28. Compared with a sample free of the pore increasing agent, after addition of the pore increasing agent in an optimum adding amount, the mesopore volume of a sample is increased by 102.63%; slag can be completely used in one time, the slag based mesoporous material with high added value can be obtained, the whole process is simple, no slag treatment is needed, no three wastes is discharged, the slag based mesoporous material is green and environmentally-friendly, and controllable preparation of the slag based mesoporous material can be realized.

A method of purifying and recycling heavy metals and fluorine, chlorine, sulfur and nitrates in industrial kiln flue gas includes the steps of (1), preparing decontaminating oxidant powder or decontaminating oxidant solution; (2), decontaminating and oxidizing; the environment-friendly composite oxidant that is nontoxic, non-corrosive and free of chlorine is used as the process material, flue gas is treated by semi-dry or dry spraying, high oxidative action under neutral to alkaline conditions is utilized to purify sulfur, nitrate, fluorine, chlorine and heavy metal contaminants in the flue gas, incombustible hydrocarbons in the flue gas are oxidatively removed efficiently, decontamination products are recycled as chemical materials or agricultural fertilizers, the method is simple, low in investment and low in operational cost, no corrosion is caused to industrial kiln production line equipment, and the method has good economic and environmental benefits.

The invention discloses a rapid tapioca flour detoxification method which comprises the following steps: (1) collecting, shelling and washing fresh tapiocas under the hydraulic pressure of 0.0389 Mpa-0.387 Mpa while washing; (2) smashing the fresh tapiocas processed in step (1), and adding water to prepare magma; (3) performing dehydration on the magma to enable the moisture content of the magma to be less than 45% by using a plate-and-frame filter press; (4) performing dilution on the dehydrated material processed in step (3) to enable the dehydrated material to become seriflux with solid content of 45% to 60% by using water, and after stirring the seriflux, using the plate-and-frame filter press to perform dehydration to enable the moisture content of the seriflux to be less than 45%; (5) performing dilution on the dehydrated material processed in step (4) to enable the dehydrated material to become seriflux with solid content as 45% to 60% by using water; (6) pre-drying and drying the dehydrated material processed in step (5), and smashing to realize rapid detoxification on the tapioca flour. The method provided by the invention only takes less than four hours from the raw material to the disinfectant product, and the product is completely in conformity with related national standard request. The invention discloses a 'safe, high efficient and rapid' tapioca flour detoxification production method.

The invention belongs to the technical field of processing device of edible fungi, and discloses a special pulverizing and softening device for primary shaping of fungi blank. The device consists of a pulverizing device, a softening device and a draught fan. By using the special pulverizing and softening device for primary shaping of fungi blank, integrated production equipment can be moved to a farmland, straw is pulverized and softened to be made into best raw materials for the fungi blank, so that repeated operations of transportation, pulverization, fermentation, turning and the like of the straw can be reduced; because the raw materials are not repeatedly transported and stored for a long time, the raw materials are fresh, impure fungi radix is few, and the quality of the product is high; the production can be completed in an enclosed tunnel so that the production is safe and reliable; by further completing automation of the equipment, the pollution rate of the raw materials can be reduced, and the labor cost is reduced; due to a pulverizing machine, disposable pulverization of the crop straw can be realized; due to the arrangement of the softening device, the pulverized pulverizing material is softened, so that the pulverizing material can be turned into feed with good palatability or a raw material of a fertilizer with high nitrogen content.

The invention provides high-cost-performance building technology with double-curvature-arch floors and energy-saving walls. The high-cost-performance building technology is characterized in that aerated concrete building block non-bearing heat preservation walls and right angular reinforced concrete load-bearing columns, T-shaped reinforced concrete load-bearing columns, cross-shaped reinforced concrete load-bearing columns and beam slabs with flat upper portions, double-curvature-arch lower portions, thin middle portions and thick peripheries form whole floors, wherein the aerated concrete building block non-bearing heat preservation walls are connected through the right angular reinforced concrete load-bearing columns, the T-shaped reinforced concrete load-bearing columns, the cross-shaped reinforced concrete load-bearing columns and the beam slabs. The high-cost-performance building technology is applicable to all light and livable units. Buildings built through the technology has the advantages of being energy-saving, environment-friendly, strong in structure, low in cost and large in effective use area.