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207results about How to "Low benefit" patented technology

Tooth cosmetic veneering method

The invention provides a tooth cosmetic veneering method, which comprises the following steps that: spinels are adopted for porcelain laminate veneering, wherein the veneer thickness can be controlled between 0.5 and 0.8; tooth surfaces are free from being processed, so that painless cosmetology is realized; temporary teeth are free from being worn, so that inconvenience of a person being subject to cosmetology can be reduced; and the tongue side parts of teeth are free from being processed, so that jaw teeth can be effectively protected, and 'foreign body feeling' is free. In the invention, a compound material prepared by a special glass permeation method is adopted, the strength can reach over 400 Mpa after bonding, the durability of the prepared spinel porcelain laminate tooth veneer can reach over 10 years; the prepared spinel porcelain laminate tooth veneer has the optical speciality being the same as that of natural tooth tissues, and has a simulation cosmetic effect; the material has good mechanical and physical properties so as to bear high stress, high acid corrosion resistance, and low heat conduction property so that the tooth body can not be irritated by heating, and no stimulation is caused to teeth pulp when people eat cold and hot food; the material has a self-cleaning capability, so that bacteria are difficult to grow; the X-ray transmission property is good; and the cost is low.
Owner:郑雷

Method for alive preservation and transportation of sea cucumber

The invention relates to a method for alive preservation and transportation of sea cucumber, which belongs to the technical field of aquatic products. The method comprises the following steps: holding the transported sea cucumber (naturally fished and caught or artificially cultured) for at least two days, transferring the sea cucumber with strong vitality after holding into a cooling barrel which is disinfected in advance and contains filtered sea water for performing cooling treatment, then placing into a plastic bag (a small sponge after being soaked in the sea water at the temperature of 20 DEG C is arranged in the bag), exhausting the air in the bag, enabling the bag to be rapidly filled with oxygen, binding up a bag mouth, and boxing; loading two layers or three layers or four layers in each heat insulation box, determining according to the size of the sea cucumber and the size of space in each box, separating the layers by hardboards, using foam boards to support at the middle parts, preventing the plastic bag from being damaged by extrusion and further avoiding death caused by hypoxia of the sea cucumber or oppression on the sea cucumber; placing the upper layer of the hardboard into a bag which loads ice blocks in advance or a heat insulation bottle for heat insulation; and sealing with an adhesive tape after well boxing, marking and starting the transportation as soon as possible. By adopting the method, the survival rate of the sea cucumber during the transportation is effectively improved, and the transportation cost is reduced.
Owner:广东天海参威科技开发有限公司

Method for extracting ultra-low-ash-content pure coal from coal slime

The invention discloses a method for extracting ultra-low-ash-content pure coal from coal slime. The method comprises the following steps: ball-milling slurrying, specifically, milling coal slime until particles with less than 200 meshes occupy more than 90%, and controlling the mass percent concentration of the coal slime slurry to be 10-35%; grading, specifically, conveying the particles with less than 200 meshes to a flotation step; flotation, specifically, adding a collecting agent, a foaming agent and an inhibitor in the obtained coal slime slurry, uniformly mixing, and carrying out one-time rough flotation, two sections of three-to-six-time fine flotation and one section of three-to-six-time scavenging to obtain refined coal slurry I, refined coal slurry II and tailing coal slurry respectively; and dehydration, specifically, adding a flocculant in the refined coal slurry I, the refined coal slurry II and the tailing coal slurry which are obtained through the flotation, carrying out flocculation settling, then dehydrating by virtue of an ultrahigh-pressure pressure filter, and controlling a pressure filter pressure to be 4.5-5.5Mpa, thus obtaining ultra-low-ash-content pure coal products, common refined coal products and tailing coal products. The method disclosed by the invention is simple in process flow, and capable of efficiently extracting the ultra-low-ash-content pure coal products from the coal slime; and moreover, the water contents of the obtained coal products are low and can achieve less than 15%, thus the coal products have remarkable economic benefits and environmental protection value.
Owner:SHENZHEN RUICHENG SHIDAI IND CO LTD

Nanometer emulsion blocking agent used for drilling fluid, and preparation method and application thereof

The invention relates to a nanometer emulsion blocking agent used for drilling fluid, and a preparation method and application thereof. The nanometer emulsion blocking agent is prepared through polymerization by dispersing at least two double-bond-contained monomers into water containing an emulsifier and a co-emulsifier in an weak alkali environment under the action of a catalyst; and raw materials participating in reaction comprise, by weight, 40 to 60 parts of the double-bond-contained monomers, 2 to 6 parts of the emulsifier, 1 to 4 parts of the co-emulsifier, 0.1 to 0.5 part of the catalyst and 30 to 50 parts of the water. Accordingn to the invention, a particle size of a dispersed particle in the nanometer emulsion blocking agent is distributed in a nanoscale and is less than 500 nm, so the nanometer emulsion blocking agent has good blocking effect, cen block micropores and be casted into microcracks, and is capable of reducing pore pressure transmission, maximumly reducing differential pressure sticking and effectively inhibiting hydration dispersion of clay; the nanometer emulsion blocking agent is stable in high salinity and has the advantages of convenient use, no toxicity, no pollution and easy degradation; and the preparation method of the nanometer emulsion blocking agent has the advantages of reasonable process, mild and controllable conditions, no post treatment, low cost and benefit ratio, and facilitation to industrial production.
Owner:北京中科日升科技有限公司

Culture medium and culture method for culturing chlorella pyrenoidosa by sheep manure leach liquor

The invention discloses a method for culturing chlorella pyrenoidosa by taking sheep manure leach liquor as a main nitrogen source, and belongs to the field of aquiculture. The chlorella pyrenoidosa is rich in nutrition, widely used for manufacturing healthcare products, cosmetics, medicines, sea fishes and shrimp feeds; a f/2 culture solution and an open cement pit are conventionally adopted to culture, so that the growth is slow, the pollution is easily produced, the cost is high and the benefits are low; at present, a horizontal type white plastic water storage tank is adopted for aerated feeding culture, and the sheep manure leach liquor is taken as the main nitrogen source and added with an appropriate amount of nutritional ingredients such as ammonium nitrate, sodium dihydrogen phosphate, soil extract, DL malic acid, D-sodium erythorbate, potassium silicate, indoleacetic acid, alpha-naphthylacetic acid, medical stone powder, a titanium solution, wheat gluten and hydroxypropyl methyl cellulose, so that not only can the waste be utilized, but also microalgae with a high healthcare value can be obtained; the organic fertilizer and the inorganic fertilizer are mixed for use, so that the nutrition is relatively comprehensive, the operation is convenient, the automatic and large-scale production can be realized, the cost is low, the benefits are high, and the microalgae yield is increased by 240%.
Owner:LINYI UNIVERSITY

Floating upper filtering type filter capable of cleaning by backflushing and using method thereof

The invention relates to a floating upper-filtering style filter with backwashing pollution-cleaning capability and a using method thereof, relating to sewage disposal technique field. A tank body is respectively welded with a manhole, a water outlet, a backwashing water inlet, a draining outlet and a water distributor, and the tank body is tightly fixed with a water filter and is connected with a vent flange and is embedded with a vision lens. The water outlet is connected with a water draining pipe through a water draining valve; the backwashing water inlet is connected with a water inlet pipe through a backwashing water inlet valve; the water inlet pipe is connected with the water distributor through a water inlet valve; a backwashing gas inlet is connected with a gas inlet pipe through a gas inlet valve; the draining outlet is connected with the filter body through a connecting valve, and the filter body is connected with a seal cylinder and the seal cylinder is connected with a draining pipe all through draining valve flanges; and the filter body is fixedly connected with a strainer film. The filtering material adopted in the method comprises polystyrene, pentane vesicant and cinnamene free monomer with a proportion less than 1. When in sewage disposal, the filtering materials are filled and draining is closed, and connection is done and gas is supplied, and then the water inlet valve is backwashed and the water draining valve and the inlet valve are opened; when pollutions cleaning, the water draining valve and the inlet valve are closed, and draining is opened and connection is done and the water inlet valve and the gas inlet valve are backwashed. The invention can be applied to sewage disposal, and the upper filtering design occupies less space and the filtering materials have a long service life for pollution cleaning.
Owner:宛金晖

Hot mix asphalt pavement smoke suppressant and preparation method of smoke-suppressing asphalt

The invention discloses a hot mix asphalt pavement smoke suppressant, comprising the following components in percentage by weight: 7%-9% of a warm mixing agent and 91%-93% of aluminium hydroxide subjected to surface modification treatment. The invention also discloses a preparation method of smoke-suppressing asphalt. The method comprises the following steps: a) heating asphalt to 100-130 DEG C, and then adding the warm mixing agent in the smoke suppressant according to the ratio in claim 1, and stirring until the warm mixing agent is uniform; and b) adding the aluminium hydroxide subjected to surface modification treatment, and stirring until the aluminium hydroxide is uniform, wherein the percentage of the asphalt is 95%-97%, and the percentage of the smoke suppressant is 3%-5%. According to the smoke suppressant disclosed by the invention, release of asphalt smoke in the construction process of a hot mix asphalt pavement can be obviously reduced, the mixing temperature of the smoke suppressant is low, the construction and ecological environments are greatly improved, the physical health of constructors is protected, the smoke suppressant has significant social benefits and environmental protection benefits, meanwhile, energy conservation can also be achieved, asphalt ageing is relieved, the pavement performances such as the integrality, the strength and the durability of the asphalt pavement are improved, and the smoke suppressant has obvious technical and economic benefits.
Owner:重庆建工建筑产业技术研究院有限公司 +2
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