947results about How to "Protect the environment" patented technology

A variable frequency magnetic suspension compressional expansion assembly comprises a compressor, an evaporator and an expansion machine that are connected. A magnetic suspension bearing centrifugal compressor is directly connected with a radial flow type expansion machine via a shaft, the shaft is suspended on a left radial magnetic suspension bearing, a right radial magnetic suspension bearing and an axial magnetic suspension bearing, a variable frequency motor is provided between the left radial magnetic suspension bearing and the right radial magnetic suspension bearing and used for driving the centrifugal compressor; and the radial flow type expansion machine comprises an air inlet chamber and an air outlet pipe, nozzles and impellers are provided between the air inlet chamber and air outlet pipe and passed through the air inlet chamber and air outlet pipe, and the impellers are fixedly connected on the shaft. The power from expansion is transmitted to the compressor, and the refrigerant after expansion is entered into the evaporator to carry out evaporative cooling; after being evaporated in the evaporator, the refrigerant is sucked by the compressor to carry out circulatory flow; and the magnetic suspension bearings assure that the shaft does not contact with the bearings when the assembly operates, so that lubrication via lubricating oil is not needed.

The invention discloses an environment-friendly disperse dye composition, which comprises the following components by weight percent: 10-75% of dye monomer A as shown in formula (1), 2-35% of dye monomer B as shown in formula (2), 8-50% of dye monomer C as shown in formula (3), and 1-10% of dye monomer D as shown in formula (4). The disperse dye composition can be regulated to obtain colored lights such as black, blue, grey, brown and the like; the obtained dye composition is an environment-friendly dye, and has wide suitable range of the pH value, good pile-on property, strong covering performance, good lifting power, colour yield, levelling property and various fastness, and can greatly improve the utilization rate of the dye and reduce the dye sewage.

The anti-fake pesticide-germicide is prepared with boron, saponin, pyrethroid, organophosphorus pesticide and alcohol. After the pesticide-germicide is set into various kinds of dry small mouth bottle with the lid opened for 0.25-2 hr, white snowflake-like crystal will grow around the bottle mouth, and this makes it possible for the user to identify the truth of the pesticide-germicide. Compared with pesticide-germicide of alone pyrethroid and organophosphorus pesticide, the pesticide-germicide of the present invention has greatly raised effect, lowered toxicity, lowered cost and reduced consumption.

The invention discloses an intensified deep concentration system for high-salt-content industrial wastewater and a technology thereof and belongs to the field of water treatment. The high-salt-content industrial wastewater is adjusted through an adjusting tank, settled through a softening settling pond, filtered through a V-type filter tank, filtered through an ultrafiltration device in an intensified mode and concentrated through a first-stage reverse osmosis device, then the hardness is removed through an ion exchange resin device, and salt separation is performed through a nanofiltration device; thick water of the nanofiltration device is concentrated through a frequent electrode transfer electrodialysis device, produced water is oxidized through an advanced oxidization device and then enters a general produced water tank, and thick water is crystallized through a freezing crystallization system and crystallized with sodium sulfate; produced water of the nanofiltration device is concentrated through a second-stage reverse osmosis device and concentrated again through the frequent electrode transfer electrodialysis device, produced water is oxidized through the advanced oxidization device and enters the general produced water tank, and thick water is crystallized through an MVR evaporative crystallization device and crystallized with sodium chloride. The intensified deep concentration system has the advantages that potential safety hazards caused by high-pressure operation are effectively reduced; the problem that the COD content is high after thick salt water is highly concentrated is effectively solved, the purity of crystallized salt is improved, and the using value of the crystallized salt is improved; the system is high in automation degree, easy to operate, low in operation pressure, stable in operation, high in purity of the crystallized salt, low in operation cost and the like.

The invention discloses a cooling liquid for automobiles, and relates to an organic anti-freeze cooling liquid and a preparation method thereof. The cooling liquid is characterized by comprising 40 to 60 percent of glycol, 60 to 40 percent of de-ionized water and additives, wherein the additives comprise a reducing agent, an antioxidant, an antiseptic, a rust preventative, a mildew inhibitor, a scale inhibitor, a defoaming agent, a pH value buffer and a pH value regulator. The preparation method comprises the following steps of: 1, adding the de-ionized water and the reducing agent into a reactor A and heating the mixture to the boiling point; and 2, squeezing the liquid in the reactor A into a reactor B after the temperature reaches the normal temperature, and adding the glycol and the additives into the reactor B to prepare the anti-freeze cooling liquid. Due to the adoption of hydrazine hydrate in the invention, free oxygen in the de-ionized water is eliminated and the problem of corrosion resistance is solved well; the product meets the requirements on long-term effect, environmental protection, safety and non-toxicity; the cooling liquid has the advantage of low cost of the required raw materials; the preparation method has the advantages of simplicity, a few facilities and low energy consumption, wins warm praise from customers and has extremely high popularization and application value and broad market prospect.

A method for preparing magnetic biochar from straw includes the step of selecting of a straw material, wherein wheat straw, corn straw, rice straw or cotton straw is selected as the straw material, the straw material is pretreated by cleaning, then the straw material is dipped with a trivalent iron salt solution, and filtered by vacuum, then a filter cake is dried, and a finished magnetic biochar product can be obtained by carbonization treatment in inert gas conditions. The magnetic biochar can be obtained by dipping the straw material in the trivalent iron salt solution by a pyrolysis process, and a new way for the use of straw is provided.

The invention provides a high-oxygen barrier property high-strength polyolefin heat conduction pipe and a preparation method thereof. The high-oxygen resistance high-strength polyolefin heat conduction pipe comprises, by weight, 100 parts of polyolefin resin, 0.1-5 parts of graphene slice layers, 0.1-15 parts of a compatilizer and 0.01-0.2 parts of an anti-oxidant. The graphene slice layers are uniformly distributed in the polyolefin resin in a ring way around a pipe central axis as a center. Through use of the graphene slice layers and a rotary core rod mouth mold, a polyolefin crystallization degree is high, a lot of oriented crystals are formed and pipe mechanical properties, heat conduction and heatproof performances are obviously improved. The graphene slice layers are uniformly distributed in the pipe in a ring way so that graphene slice layer obstruction performances are greatly improved and thus the good oxygen barrier property is kept under the condition of a very small amount of an anti-oxidant.

The invention provides a fabric, in particular to a mulberry silk and cuprammonium rayon yarn interwoven fabric. The fabric is interwoven by the mulberry silk and the cuprammonium rayon yarn, wherein warp is made of the mulberry silk, while weft is made of the cuprammonium rayon. The invention also provides a method for weaving the fabric, which is a method of interweaving the mulberry silk warp and the cuprammonium rayon yarn weft into the fabric, wherein the cuprammonium rayon yarn as the weft is subjected to predrying treatment before use; process steps of the warp and the weft are as follows: the warp adopts reeled silk to be subjected to rolling, primary twisting, doubling, second twisting, skeining, degumming, dyeing, rolling, warping and weaving; and the weft adopts cone winded yarns to be subjected to roll separating, twisting, skeining, dyeing, rolling, quilling, predrying and weaving. The method provides the product interwoven by the mulberry silk and the cuprammonium rayon yarn, and adds new content for colorful silk variety.

The invention relates to a condensed multi-enzyme medical cleaning agent. The cleaning agent contains surfactants, a detergent auxiliary agent, a solubilizing agent, an enzymic preparation, a foam inhibitor and a preservative, wherein the surfactants are a non-ion surfactant and an anion surfactant. The cleaning agent comprises the following formula components in percentage by weight: 5 to 10 percent of alkoxyl fatty alcohol, 3 to 5 percent of alkyl polylucoside, 5 to 10 percent of alkanol polyether, 5 to 10 percent of sodium xylene sulfonate, 0.5 to 1.5 percent of sodium sulfate, 0.5 to 1 percent of calcium chloride, 2 to 4 percent of disodium ethylene diaminetetraacetate, 5 to 10 percent of hydrogenated castor oil, 6 to 12 percent of dipropylene glycol monomethyl ether, 5 to 10 percent of glycerol, 2 to 6 percent of proteinase, 1 to 5 percent of amylase, 1 to 5 percent of lipase, 0.5 to 1 percent of cellulase, 0.1 to 0.5 percent of methylparaben and propyl hydroxybenzoate preservative, 0.1 percent of essence, 0.1 percent of pigment and the balance of deionized water. Through the cleaning agent, all the biological residues adhered in and out of a medical apparatus can be quickly and effectively decomposed and cleaned and aluminum oxide playing a role in protection on the metal surface layer is not damaged.

The invention discloses a fermented organic fertilizer. The fermented organic fertilizer comprises the following components in parts by mass: 1000-1500 parts of stalk, 1000-1300 parts of chicken manure, 1000-1500 parts of cattle manure, 800-1200 parts of pig manure, 1200-1800 parts of soybean meal, 35-50 parts of a microbial agent, 10-20 parts of peat humic acid, 50-80 parts of corn meal, 60-90 parts of composite enzyme preparation and 30-60 parts of complex bacteria. The invention also discloses a fermentation method of the fermented organic fertilizer. As the method adopts the microbial bacteria and the composite enzyme preparation, the fermentation efficiency is improved, the fermentation time is effectively reduced, the consumption amount of water, electricity and steam is reduced, the production cost is lowered, and the method is suitable for industrial large-scale production; the fermented organic fertilizer disclosed by the invention has no malodor when used in fields, is cost-saving due to the reduction in the consumption, does not result in soil impoverishment, hardening and salinization, and meets the trend of energy-saving, environment-friendly and sustainable development.

The invention discloses an alkali-activated cementing material for 3D printing and a printing method of the alkali-activated cementing material. The alkali-activated cementing material consists of the following raw materials: industrial wastes, an alkali activating agent, fine aggregates, a defoaming agent, a water reduction agent, water, coarse aggregates, high-strength fiber and a micro nano material. A prepared slurry mixture is fed by two pumps and is printed and molded in a 3D printing mode. The problem that 3D printing concrete is low in early strength is solved, and the slurry properties of the alkali-activated cementing material are effectively improved; as the slurry is fed by two pumps, the problems that the alkali-activated cementing material is high in condensation rate and not applicable to 3D printing are solved; and due to doping of various fibers, final pressure and bending resistance of printed concrete is greatly improved.

The invention discloses a production of food packaging film and the method for preparation, specifically a degradable complex film prepared with degradable nanometer PA polymer as the obstruct material. Said complex film has a layer structure containing at least two outer layers and one interlayer, at least one layer among which is the obstruct layer, the obstruct layer being made up of degradable nanometer PA polymer, and others being made up of degradable polyolefin or polyolefin. Compared with the high-obstruct film prepared with PVDC, the invention overcomes the shortcomings that the manufacture is hard, the cost is high, environmental pollution is serious, and the recovery is hard. And the high-obstruct packaging film prepared mainly with nanometer PA has identical obstruct effect with PVDA film.

The invention discloses a navy blue or black disperse dye. The navy blue or black disperse dye contains a navy blue or black disperse dye composition and an additives. The navy blue or black disperse dye composition comprises one or more of dye A shown as formula (I), one or more of dye B shown as formula (II), one or more of dye C shown as formula (III), and one or more of dye D shown as formula (IV). The navy blue or black dye provided by the invention has the advantages of high dye-uptake, good deep dyeing property, excellent elevating power, excellent color fastness, and good level dyeing property. (formula (I), formula (II), formula (III), formula (IV)).

The invention discloses a method for preparing an epoxy and polyvinyl chloride (PVC) composite flexible faced material, which comprises the following steps of: preparing an epoxy coating by weighing, baiting and stirring, uniformly coating the epoxy coating on the surface of glass fiber cloth of a PVC glass fiber composite coating through a coater, then baking for 15 to 20 minutes at the temperature of between 90 and 120 DEG C, and finally cooling, trimming and coiling to obtain the epoxy and PVC composite flexible faced material. Specific raw materials and proportion of the raw materials are adopted in the method; and the produced epoxy and PVC composite flexible faced material has excellent physical and chemical properties of epoxy resin such as abrasion resistance, scouring resistance, grease dirt resistance, ageing resistance, strong chemical resistance, strong adhesive force and the like. Because the PVC coating with good flexibility is used as a bottom material coating, flexibility and easy sticking property of the faced material are increased. By using glass fibers as a material skeleton, the material is further enhanced, and the problems of frangibility, easy cracking and the like of most faced materials are solved.

The invention relates to the technical field of consumption management and particularly discloses paperless transaction receipt equipment and system. The system comprises a POS (Point Of Sale) machine, a printing monitoring module, a near-field communication module and a user mobile terminal, wherein the printing monitoring module is connected with the POS machine and is used for capturing and processing data output by the POS machine; the near-field communication module is connected with the printing monitoring module in a wired or wireless manner and is used for sending data processed by the printing monitoring module to the user mobile terminal or receiving data from the user mobile terminal, so as to output a paperless transaction receipt. Through adoption of the paperless transaction receipt equipment and system, disclosed by the invention, the output of a consumption voucher of a merchant better accords with a low-carbon, environment-friendly and economical tendency and idea, so that a consumption transaction receipt can be more simply obtained and more reliably stored, the data is more accurate and the application is more smooth; and the consumption management and the reasonable decision making of customers can be realized by virtue of a simple and easily-operated open platform and tool, so that the interactive transaction between the merchant and the customerand between the customers is realized.

The invention provides BHK-21 cells obtained by high-density suspension culture in a low-serum and serum-free culture medium and a culture method thereof. The culture method comprises the following steps: 1) resuscitating frozen BHK-21 cells and performing adherent culture to obtain adherently cultured BHK-21 cells; 2) subculturing the adherently cultured BHK-21 cells in culture solution to obtain suspension-cultured BHK-21 cells and freezing the BHK-21 cells; 3) performing resuscitation culture of the suspension-cultured BHK-21 cells and performing biological property identification; and 4) performing bioreactor adaptive culture of the suspension-cultured BHK-21 cells identified to be qualified. The invention has the advantages that: a cell domesticating method provided by the invention and the obtained BHK-21 cells which can be cultured in a suspended manner save culture solution and bovine serum, are in accordance of current energy-saving, environment-protection and low-carbon concepts for the application of suspended-cultured cells into actual production saves floor area and labor investment greatly, and create considerable economic benefit and social benefit.

The invention relates to a method for arranging a supporting column used for preventing the ground from collapsing and deforming in an underground cavern (cave, laneway). The invention has broad applications in the constructions of roads, railways, airdromes and water conservancy projects which have underground caves or goaf roadways and can also be applied to the field of environment resuming and governing of a surface collapse area or a mine goaf area. The method of the invention includes: using a drill to drill a bore from the ground to the underground until entering into 40 to 60cm under the bottom surface of the cavern, then inserting a steel pipe the outside of which is coated by a bag into the bottom part of the bore, then inserting a grouting pipe into the bottom part of the steel pipe, pouring cement slurry into the pipe by using a grouting pump through a grouting pipe; a supporting body is formed after the bag is fully filled and solidified. A plurality of supporting columns can also be arranged in the cavern according to the method to form a supporting column group or a curtain wall formed by the supporting columns.

The invention relates to a method for promoting the propagation of tricholoma matsutake artificially and belongs to the technical field of edible fungus germplasm resource protection and utilization, in particular to innovative technology which is used for realizing stable and high yield of the tricholoma matsutake by using 'tricholoma matsutake mountain' forestry management and adopting manual propagation promoting measures in a special environment needed for growing the tricholoma matsutake in order to improve the fact that the artificial culture of the tricholoma matsutake by using purely cultured stains is a goal difficult to fulfill for a long time. The technical scheme of the invention mainly comprises propagation promoting technology using tricholoma matsutake spores, mycorrhizae and hyphae as propagation materials, forestry management tricholoma matsutake propagation promoting technology and fungus shiro artificial tricholoma matsutake propagation promoting technology. The method not only is a tricholoma matsutake native area conservation and propagation promoting measure, but also can protect the shiro, promote the sound growth of the shiro and promote the yield and quality of tricholoma matsutake.

The invention relates to a method for preparing sodium nitrite from nitric oxide waste gas with low oxidation degree in the industrial process, which comprises the following steps of: after water is removed from the nitric oxide waste gas, mixing the nitric oxide waste gas with oxygen supplying air according to a certain ratio, and introducing the mixture into multistage serial alkaline liquor absorption towers from the bottom of the first stage of absorption tower, wherein the temperature of the absorption liquor is below 50 DEG C, and the pressure inside the tower is 0.03-0.08 MPa; discharging the purified gas up to the standard from the top of the tail tower; and extracting a sodium nitrite solution from the bottom of the first stage of absorption tower. During the serial absorption process, after water is removed from the nitric oxide gas discharged by the last stage of tower, the concentrations of NO2 and NO are measured according to an online nitric oxide analyzer, and the oxygen supplying air is input through PRC control. During the absorption process, the circular absorption liquor of each absorption tower is first conveyed to a cooling device to cool, and thus, the temperature in the absorption tower is controlled. In the invention, common tower equipment with low cost is adopted to obtain sodium nitrate/sodium nitrite (0.02 sodium nitrite solution), the emission of nitric oxide is reduced, and the purposes of energy saving, emission reducing and recycling are achieved.

The invention relates to a method for producing protective vegetable fungus root sprout, comprising the following steps: 1) planting susceptive crop after inoculating the bush AMF for sterilized organic soil or soil, taking the strand roots of plant or fungus root spore as inoculating bacteria; 2) sterilizing seedling soil or medium; 3) loading the sterilized soil into dish, spraying the inoculating bacteria onto soil, 4) sowing on the dish, then covering with sterilized soil for seedling in greenhouse. The invention is characterized by the low cost, good popularity and simple operation. The bacteria can on one side increase the usage of nutrient and water and fertilizer under organic cultivating condition, which results in productivity and quality improvement of vegetable; on the other side can strengthen the disease and drought resistance, reduce disease spread through soil and improve vegetable root condition.

The invention discloses a ceramic tile adhesive. The ceramic tile adhesive is characterized by comprising, by weight, 30-40 parts of inorganic bond materials, 5-10 parts of a negative ion additive, 5-10 parts of padding, 35-60 parts of sand and 2-4 parts of a dry-mixed mortar additive. The negative ion type ceramic tile adhesive integrates the three functions of bonding, water resistance and joint filling, the adhesive long lasting performance is improved during construction, the ceramic tile empty drum disengagement phenomenon is effectively avoided, the adhesive stability and the practical engineering requirement are ensured, and the ceramic tile adhesive has the good waterproof performance when in use; harmful gas released by the ceramic tile adhesive meets the national standard, negative ions can be continuously released, indoor formaldehyde, phenol and other hazardous gas are removed, indoor air is purified, the indoor living environment is improved, and the natural and environment-friendly living space is provided.

The invention discloses a compound concrete admixture with early strength and water reduction functions. The compound concrete admixture is mainly prepared by 10-20 parts by mass of a polycarboxylate water-reducer, 1-5 parts by mass of a surfactant, 5-40 parts by mass of an early strength agent, 2 or less parts by mass of an air entraining agent, and 20-100 parts by mass of water. The preparation method of the compound concrete admixture comprises the following steps: processing a polycarboxylate water-reducer mother liquor to prepare a solution, mixing the polycarboxylate water-reducer solution with the early strength agent, the surfactant, the air entraining agent and water according in proportion, and uniformly stirring. The application of the concrete admixture is realized through the following steps: stirring the concrete admixture and standard sand; taking cement and water, and carrying out low-speed uniform mixing; mixing the above two materials, carrying out low-speed stirring, then carrying out high-speed stirring, intermediately stopping, and then continuously carrying out high-speed stirring; and adding the finally obtained mixture into a mold, and maintaining, wherein the addition of the polycarboxylate water-reducer is not greater than 1% of the amount of a cement mortar. The compound concrete admixture has the advantages of simple preparation method, fast effectiveness, wide application range, low cost and good effect.

The invention discloses a flameless combustion heat accumulating type flat flame combustion nozzle. A combustion nozzle body is internally provided with an air or smoke gas passage, a porous heat accumulator, a combustion cavity, a gas pipeline and an ignition device, wherein the tail end of the air or smoke gas passage is provided with a tangential air inlet duct positioned along the tangential direction of the circumferential combustion cavity, and the air or smoke gas passage is connected with the combustion cavity through the tangential air inlet duct; the tail end of the gas pipeline is provided with a flame combustion gas pipe and a flameless combustion gas pipe which are parallel and respectively controlled by a flame combustion control valve and a flameless combustion control valve, and the aperture of a flameless combustion gas spray orifice positioned on the tail end of the flameless combustion gas pipe is smaller than that of a flame combustion gas spray orifice positioned on the tail end of the flame combustion gas pipe. The flameless combustion heat accumulating type flat flame combustion nozzle has high energy utilization efficiency and good furnace temperature uniformity and can greatly reduce the discharge amount of NOX; fuel is sprayed at high speed through the necking spray orifice, thereby effectively controlling the flame temperature and being beneficial tothe sufficient combustion of the fuel; and in addition, the flame sprays into a furnace cavity with a very short spraying distance so as not to spray to parts inside the furnace cavity.

The invention discloses a low-energy preparation method of a positive electricity nanometer emulsion, which comprises the steps of: dissolving cationic surface active agent and inorganic salt in water to obtain water phase; evenly mixing oil phase, non-ionic surface active agent and the water phase to add into a reactor; emulsifying by means of low-speed stirring under a certain emulsification temperature for a certain time; and fast reducing temperature by means of ice water bath to obtain the positive electricity nanometer emulsion. The invention further discloses the positive electricity nanometer emulsion prepared by the method, which has the characteristics of small grain diameter, narrow grain diameter distribution and good long-term stability. Furthermore, the method is convenient in operation, is energy-saving, reduces the cost, and is convenient to adjust and control the emulsion to have electric quantity.

The invention provides a preparation method of copper red microcrystalline glass. The preparation method comprises the following steps of 1, carefully screening waste and old glass, cleaning, and crushing to obtain waste and old glass powder, 2, pretreating waste circuit boards, and carrying high temperature oxidation to obtain a metal oxide concentrate, 3, mixing the waste and old glass powder and the metal oxide concentrate, adding a nucleating agent and auxiliary agents, mixing well, and carrying out ball milling to obtain a mixed raw material, and 4, melting the mixed raw material at a high temperature into molten glass liquid, carrying out molding after clarification and homogenization, and carrying out nucleation and crystallization through heat treatment after annealing to obtain the copper red microcrystalline glass. The preparation method reduces or eliminates adverse influences from waste and old glass and waste circuit boards on the environment, changes waste into valuables, produces copper red microcrystalline glass having an extremely high artistic value, and has large economic and social benefits.