45results about How to "Optimization index" patented technology

The invention discloses an ultraviolet-curable white character jet-ink which is prepared from the following components: oligomers, active monomers, titanium pigment, a photoinitiator, a dispersing agent and a surfactant. The invention also discloses a method for preparing the white character jet-ink, which comprises the following steps of: (1) raw material preparation, (2) high-speed shocking dispersion, (3) high-speed grinding, and (4) filtering. The ultraviolet-curable white character jet-ink disclosed by the invention is small in particle size, low in viscosity, good in inkjet performance, capable of being cured rapidly under ultraviolet light, high in hardness of film, and good in adhesion. The preparation method provided by the invention is scientific and reasonable in components, efficient and stable. The jet-ink disclosed by the invention can be widely used for printing various graphics and characters, and is especially suitable to be applied to electronic circuit boards.

The invention provides a rope system releasing stable control method and an electric force rope system off-tracking stable control method. The rope system releasing stable control method comprises the following steps: (1) based on a non-linear optimal control theory, determining a control variable and a state variable aiming at different processes, namely a rope system releasing process or an electric force auxiliary off-tracking process; establishing an open ring optimal control model; considering task restriction and solving an open ring optimal control rule through a pseudo-spectrum optimization algorithm; (2) designing a robust feedback controller based on a trace tracking concept by taking a solved open ring optimal trace as a reference trace, wherein a feedback control grain is commonly determined by an open ring optimal control algorithm and a numerical value interpolation. According to results of the step (1) and the step (2), a control method of a rope system releasing process and the electric force auxiliary off-tracking process is determined.

The invention provides a semi-submersible type floating fan base and a floating fan. The floating fan base comprises at least three stand columns, a stand column connecting structure and a supporting stand column, wherein the stand column connecting structure is connected with the lower ends of the stand columns to integrate the stand columns and the stand column connecting structure into a whole; the supporting stand column is arranged in the center of the floating fan base and used for supporting a tower, a cabin, blades and a wind generating system of the fan; and the cross sectional area of each stand column gradually grows large from a preset position underwater to top. The floating fan comprises the semi-submersible type floating fan base, the tower, the cabin, the wind generating system and the blades, wherein the tower is mounted on the supporting stand column of the semi-submersible type floating fan base; the cabin is mounted on the top of the tower; and the wind generating system and the blades are mounted at the front end of the cabin. According to the semi-submersible type floating fan base, the structure and the movement performance of the floating fan are improved, and production cost and installation cost are reduced.

The invention provides energy-saving environment-friendly water-based concentrated solution for a fully mechanized mining hydraulic support electrohydraulic control system under a coal mine, which is applied to different water qualities such as total hardness, sulfate radicals, chlorine radicals, bicarbonate radicals and the like through concentration ratio adjustments. The concentrated solution greatly improves lubricating property, rust resistance, corrosion resistance, sealability and cleaning and filtering characteristics of the fully mechanized mining hydraulic support electrohydraulic control system under the coal mine, has a function of repairing a metal frictional wear surface, prolongs the service life of equipment, changes a frictional interface, avoids pollutions, prevents original emulsified oil and microemulsion from polluting water resources of a mining area, and saves nonrenewable oil resources, so the concentrated solution is an energy-saving and environment-friendly substitute upgrading product, and simultaneously the concentrated solution meets national and international low-carbon economic development general requirements on energy saving and emission reduction, and has predominant economic benefits and social benefits.

The invention discloses a method for recycling high acid crude oil electric desalting wastewater. The method comprises the following steps of: performing oil removal, suspended matter treatment and microbial biochemical treatment on the high acid crude oil electric desalting wastewater; and performing flocculation, sand filtration, biological activated carbon treatment and electro-adsorption treatment on microbial biochemical treatment effluent in sequence, wherein flocculation and sand filtration are performed to remove suspended matters and a part of colloids or dissolvable organic matters from the biochemical treatment effluent; biological activated carbon treatment is performed to further remove the colloids and dissolvable organic matters; and electro-adsorption treatment is performed to remove salts and ionic organic matters such as naphthenic acid and the like. The COD (Chemical Oxygen Demand) of treatment effluent is less than or equal to 50 mg / L, and the strict local discharge standard (COD is less than or equal to 60 mg / L) can be met; and the treatment effluent can be recycled into a circulating water system or an electric desalting device as desalted water, so that water is saved and discharge is reduced.

The disinfectant consists of polyethoxyl carboxyl carbamidine 0.1-2.0 wt%, dodecyl dimethyl benzyl ammonium chloride 0.1-2.0 wt%, dimethyl benzyl ammonium bromide 0.1-2.0 wt%, bisoctyl / bisdecyl dimethyl chloride 0.1-2.0 wt%, tetradecyl / octadecyl dimethyl benzyl ammonium chloride 0.1-2.0 wt%, and 2-bromo-2-nitro-1, 3- propylene glycol 0.1-2.0 wt% except water. The disinfectant of the present invention is noncorrosive single-component transparent liquid, and has no color, no smell, no toxicity and harm, small dose, fast disinfecting effect, high safety and environment friendship.

The invention belongs to the field of green organic synthesis and aims to provide a synthesizing method and application for a bi-component bi-metallic catalyst. The method comprises the following steps that: dissolving multi-cyanogroup alloy potassium peroxymonopersulfate in deionized water, and then adding a water soluble polymer; stirring till completely dissolving the water soluble polymer, and then dripping into the aqueous solution of halide salt, nitrate, phosphate or sulfate of zinc, cobalt or cadmium; after stirring or performing ultrasonic reaction, separating and drying so as to obtain solid; mixing the obtained solid with quaternary ammonium salt, phosphor salt or mixture thereof in any proportion; and performing wet ball milling on the obtained mixture, and then separating, drying and sieving, thereby obtaining the bi-component bi-metallic catalyst. The bi-component bi-metallic catalyst is high in catalyzing efficiency and selectivity; the overall indicator of the catalyzing efficiency and selectivity is better than that of the prior art; the bi-component bi-metallic catalyst has the obvious advantage that less water almost has no influence on the activity and selectivity of the catalyst; and the catalyst provided by the invention is capable of catalyzing the coupling reaction of bi-radical or multi-radical oxide and CO2 and has excellent activity and selectivity.

The invention discloses a method for developing data resources and optimally distributing frequency spectrums for user communication, relates to the technical field of wireless communication, particularly in the field of user experience, and mainly solves the problem that the satisfaction degree of users in the traditional QoS (service quality)communication cannot be ensured. In the method for developing data resources and optimally distributing frequency spectrums, a totally new QoE (quality of experience) management system is established, the traditional network is extended to be a generalized network, and modularized operation of QoE management is realized. By adopting an excitation and punishment mechanism, the problem of inadequate and inaccurate data source in the prior art is solved, the QoE-QoS relation is studied, a practical mapping relation between QoE and QoS is proposed, the frequency spectrums are distributed according to the practical request of a user so that the frequency spectrum resource is utilized to the maximum. In the method for developing data resources and optimally distributing frequency spectrums, the actual condition of the current network and the practical requests of users are comprehensively taken into account, therefore, the user experience value can be greatly increased in a condition that the system throughput is not obviously worsened.

The invention offers a method for making white microcrystalline wax of high quality through hydrogenation. The invention takes poor microcrystalline wax as raw material, adopts single high pressure hydrogenation method, and the oil-hydrogen mixture from the reactor is treated by separation, deodor to get the white microcrystalline wax products under the condition of 10MPaí½18MP and 270í½ 340íµ and through the catalytic bed with proper bore construction. In the said invention, hydrogenation desulfuration, denitrification and aromatics saturation proceed in one reactor, and it could be used to produce white microcrystalline wax products for food and cosmetics. The invention is characterized on short process flow, simple operation, etc, therefore, we can use the present ceresin wax hydrogenation devices to produce refining microcrystalline wax.

The invention discloses a deep treatment method of naphthenic acid wastewater. Wastewater treatment comprises oil removing treatment, biological treatment, chemical precipitation-coagulation, sand filtration treatment and activated carbon adsorption treatment, wherein the chemical precipitation-coagulation is performed under the alkaline condition for making non-biodegradable naphthenic acid be reacted with lime to generate calcium naphthenate precipitates and remove the precipitated calcium naphthenate precipitates from wastewater under the coagulation action; the sand filtration is performed to treat colloids and suspended matters in wastewater; and the activated carbon adsorption is performed to further treat wastewater-dissolvable microorganism products and other non-biodegradable organic matters. Due to the adoption of the method, organic matters such as naphthenic acid and the like are effectively removed finally, the COD (Chemical Oxygen Demand) of treatment effluent is less than or equal to 50 mg / L, the strict local discharge standard (COD is less than or equal to 60 mg / L) can be met, and the environmental risk of wastewater discharge is lowered; and the method is suitable for performing deep treatment on naphthenic acid in various types of oil refining or oil field wastewater.

The invention discloses a treatment method for discharging naphthenic acid wastewater within the controlling index of the national standard. Wastewater treatment comprises oil removing treatment, biological treatment, acidification-coagulation, Fenton oxidation treatment, flocculation-sand filtration and biological activated carbon treatment, wherein the acidification-coagulation is performed under the acid condition to precipitate macromolecular naphthenic acid and remove the precipitated macromolecular naphthenic acid from wastewater under the coagulation action; the Fenton oxidation treatment is performed on micromolecular naphthenic acid and other organic matters to partially oxidize completely and partially improve the biodegradability; and deep biological activated carbon treatment is performed on dissolvable organic matters left after the Fenton oxidation. Due to the adoption of the method, organic matters such as naphthenic acid and the like are effectively removed finally, the COD (Chemical Oxygen Demand) of treatment effluent is less than or equal to 40 mg / L, the strict local discharge standard (COD is less than or equal to 60 mg / L) can be met, and the environmental riskof wastewater discharge is lowered; and the method is suitable for discharging various types of naphthenic acid-containing wastewater such as electrical desalting wastewater for processing high acid crude oil or polymer flooding oil field wastewater and the like within the controlling index of the national standard.

The invention discloses a low alkali sulfur acid free floatation technology for high sulfur lead zinc ores, and belongs to the technical field of ore processing. Sulfur concentrate (pyrite) is obtained after lead-sulfur mixing-floating and lead-sulfur separation. Sulfur acid is not used, the environmental pollution caused by sulfuric acid is avoided, the wastewater processing cost is reduced; at the same time, the steps for storing, transporting, and using sulfuric acid are all eliminated, the production and management difficulty is reduced; in lead-sulfur separation, lime, BP, and BH are usedas an inhibitor for pyrite, the novel medicaments (BP, BH) have a good separation effect; the alkalinity of the mineral slurry is low, the using amount of lime is reduced; and solved are problems that the alkalinity of mineral slurry is high, the foams are viscous, the entrainment of gangue is severe, and the comprehensive recovery rate of precious metals such as silver, gold, and the like, is low.

The invention discloses a cycloidal gear tooth curve variable step size discretization method, which comprises the following steps of S1, setting a cycloidal gear tooth curve parameter; S2, deriving out a cycloidal gear tooth curve equation; S3, deriving out a formula of the curvature radius Rho of the practical tooth curve of a cycloidal gear; S4, deriving out an equation of phi relevant to a pressure angle alpha; S5, deriving out an inflexion equation of the cycloidal gear tooth curve; S6, giving the curve linear interpolation initial step size discretization method. The discretization errors and given errors are compared for automatically regulating the closing step size, so that the maximum step size smaller than the closing errors can be obtained; on the premise of meeting the precision requirements, the number of cutting feeding times is reduced; the processing efficiency is improved. The cycloidal gear tooth curve variable step size discretization method provided by the invention has the advantage that the good integral index is realized in the aspects of closing precision, discretization efficiency and calculation speed.

The invention discloses a hydroxypropyl carboxymethyl waxy corn starch acid dye printing paste which is prepared from the following raw materials, by weight, 95-105 parts of waxy corn starch, 190-210 parts of an ethanol aqueous solution, 4-8 parts of sodium hydroxide, 20-25 parts of epoxypropane and 14-21 parts of chloroacetic acid. A preparation method of the paste comprises the following steps: uniformly dissolving waxy corn starch in the ethanol aqueous solution, and carrying out an alkalization reaction by adding sodium hydroxide; carrying out an etherification reaction by adding epoxypropane after the alkalization reaction is finished; adding chloroacetic acid after the etherification reaction is finished, heating to 65-75 DEG C and reacting for 2-3 h; cooling to 25-35 DEG C after the reaction is finished, adjusting pH value of the reaction system to neutral by using hydrochloric acid, washing, carrying out suction filtration, drying at 80 DEG C, and crushing to obtain the product. When used in acid dye printing, the product has high tinctorial yield, good contour sharpness and high de-paste ratio. The acid dye printing paste provided by the invention can be used in acid dye printing, is biodegradable and meets requirements of eco-environmental protection.

The invention belongs to the field of green organic synthesis and aims to provide a synthesizing method and application for a bi-component bi-metallic catalyst. The method comprises the following steps that: dissolving multi-cyanogroup alloy potassium peroxymonopersulfate in deionized water, and then adding a water soluble polymer; stirring till completely dissolving the water soluble polymer, and then dripping into the aqueous solution of halide salt, nitrate, phosphate or sulfate of zinc, cobalt or cadmium; after stirring or performing ultrasonic reaction, separating and drying so as to obtain solid; mixing the obtained solid with quaternary ammonium salt, phosphor salt or mixture thereof in any proportion; and performing wet ball milling on the obtained mixture, and then separating, drying and sieving, thereby obtaining the bi-component bi-metallic catalyst. The bi-component bi-metallic catalyst is high in catalyzing efficiency and selectivity; the overall indicator of the catalyzing efficiency and selectivity is better than that of the prior art; the bi-component bi-metallic catalyst has the obvious advantage that less water almost has no influence on the activity and selectivity of the catalyst; and the catalyst provided by the invention is capable of catalyzing the coupling reaction of bi-radical or multi-radical oxide and CO2 and has excellent activity and selectivity.

The invention relates to fragrance-producing Laomian mantou and a preparation method thereof. The Laomian mantou is prepared by the following steps: (1) uniformly kneading activated fragrance-producing yeast preparation bacterial liquid, active dry yeast preparation, lactobacillus plantarum preparation, water and flour, and performing primary fermentation to obtain fermented sour dough; and (2) uniformly kneading the fermented sour dough obtained in the step (1) with water and flour, carrying out secondary fermentation, adding alkali, performing molding and steaming to obtain the fragrance-producing Laomian mantou. The steamed fragrance-producing Laomian mantou has the advantages of aromatic flavor, good mouth feel, rich nutrients, high content of flavor substances, rich varieties of flavor substances, stable property, and better comprehensive indexes than that of yeast mantou. The method is simple and safe to operate, and is suitable for industrial production.

The invention provides a semi-submersible type floating fan base and a floating fan. The floating fan base comprises at least three stand columns, a stand column connecting structure and a supporting stand column, wherein the stand column connecting structure is connected with the lower ends of the stand columns to integrate the stand columns and the stand column connecting structure into a whole; the supporting stand column is arranged in the center of the floating fan base and used for supporting a tower, a cabin, blades and a wind generating system of the fan; and the cross sectional area of each stand column gradually grows large from a preset position underwater to top. The floating fan comprises the semi-submersible type floating fan base, the tower, the cabin, the wind generating system and the blades, wherein the tower is mounted on the supporting stand column of the semi-submersible type floating fan base; the cabin is mounted on the top of the tower; and the wind generating system and the blades are mounted at the front end of the cabin. According to the semi-submersible type floating fan base, the structure and the movement performance of the floating fan are improved, and production cost and installation cost are reduced.

The invention relates to a method for preparing organic titanium-organic ammonium salt organic fertilizer by a salting-out process. The method is characterized in that: new metatitanic acid precipitate is prepared by neutralizing an iced solution of titanium salt by using alkali; the new metatitanic acid precipitate instead of titanium chloride and sulfate is used as raw materials for synthesizing citricacide-titatnium chelate; citricacide-titatnium chelate is synthesized by a microwave hot melting chelation process by using the new metatitanic acid precipitate as a titanium source and citricacid as an acid solvent and chelant; and the organic titanium-organic ammonium salt compound functional organic fertilizer is prepared by neutralizing a saturated solution of citricacide-titatnium chelate by using ammonium carbonate powder, and salting out. The synthesized organic titanium does not contain chlorine and sulfur ions completely. The citric acid has high capacity of chelating metal ions, and is stable in performance and high in activity; organic acid obtained by reacting citric acid, ammonium carbonate and ammonium hydroxide has high content and activity; and the organic titanium-organic ammonium salt compound organic fertilizer is powder, high in stability and water-solubility, and is convenient to store, convey and use.

The invention relates to the technical field of rhinitis treating medicines, and provides antiallergic rhinitis treating granules containing radix codonopsis and astragalus and a preparation method of the antiallergic rhinitis treating granules. The antiallergic rhinitis treating granules containing the radix codonopsis and the astragalus comprise the following raw materials: the radix codonopsis, agrimonia pilosa ledeb, honeysuckle, radix scutellariae, dandelion, folium isatidis, the astragalus, radix angelicae dahuricae, mint, asarum and lactose. The antiallergic rhinitis treating granules containing the radix codonopsis and the astragalus are prepared by a Chinese herba preparation technology, have certain antiallergic and anti-inflammatory effects, are used for treating acute rhinitis, chronic rhinitis and allergic rhinitis, take effect quickly, are not irritant, do not cause dependence, have lasting efficacy, can be orally taken without taboo, and provide pharmacology basis for treatment of the allergic rhinitis. The comprehensive index of the antiallergic rhinitis treating granules containing the radix codonopsis and the astragalus is obviously higher than that of a pharmaceutical preparation. The antiallergic rhinitis treating granules containing the radix codonopsis and the astragalus are Chinese herba preparations which can effectively act on the acute rhinitis, the chronic rhinitis and the allergic rhinitis, have vast potential for further development, and have special significance on qualitative leap of treatment of the acute rhinitis, the chronic rhinitis and the allergic rhinitis.

The invention relates to a method of pickling sauerkraut by using pure lactic acid bacteria under a waterless and vacuum condition. The method comprises the following steps of (1). cleaning celery cabbages; (2) pickling: loading the celery cabbages into special pickling bags; (3) adding the lactic acid bacteria: spraying uniformly; (4) vacuum packaging; and (5) fermenting and ripening to make into the sauerkraut. The method has the advantages that 1. pickling is carried out by using a waterless mode, and the method is clean in production, without phenomena of celery cabbage head mildew or peculiar smell, reduces environment pollution, and simultaneously reducing production cost; 2. the sauerkraut produced by the method has soft sour flavor and high non-volatile acid content reaching over 90%, nitrite content is decreased by over 50% and pickling ripening period is shortened by 30% than a conventional pickling method by fermenting with the pure lactic acid bacteria; and 3. the sauerkraut produced by the method has unique flavor, mouthfeel and fragrance, with comprehensive index obviously superior to the sauerkraut produced by the conventional method.

The invention provides a culture method and related application of a beauveria bassiana (BbJL-01) with strong pathogenicity on final instar larvas of dendrolimus houi lajonquiere. The strain has the advantages of simple culture method, large sporulation quantity and strong pathogenicity on final instar larvas of dendrolimus houi lajonquiere; furthermore, the strain is a biological prevention and control method; compared with chemical agents, the strain has more environmental friendliness; meanwhile, the strain can be repeatedly used, so that cost is reduced, and the strain is easy to popularize.

The invention provides energy-saving environment-friendly water-based concentrated solution for a fully mechanized mining hydraulic support electrohydraulic control system under a coal mine, which is applied to different water qualities such as total hardness, sulfate radicals, chlorine radicals, bicarbonate radicals and the like through concentration ratio adjustments. The concentrated solution greatly improves lubricating property, rust resistance, corrosion resistance, sealability and cleaning and filtering characteristics of the fully mechanized mining hydraulic support electrohydraulic control system under the coal mine, has a function of repairing a metal frictional wear surface, prolongs the service life of equipment, changes a frictional interface, avoids pollutions, prevents original emulsified oil and microemulsion from polluting water resources of a mining area, and saves nonrenewable oil resources, so the concentrated solution is an energy-saving and environment-friendly substitute upgrading product, and simultaneously the concentrated solution meets national and international low-carbon economic development general requirements on energy saving and emission reduction,and has predominant economic benefits and social benefits.

The invention relates to a method for preparing organic titanium-organic potassium salt organic fertilizer by a salting-out process. The method is characterized by comprising the following steps of: neutralizing titanium salt ice water solution with a base to prepare a new precipitate metatitanic acid; replacing titanium chloride or sulfate with new precipitate metatitanic acid to be used as a raw material for synthesizing titanium citrate; synthesizing titanium citrate with new precipitate metatitanic acid as a titanium source and citric acid as an acid solvent and chelating agent by a microwave hot-melt chelating process; and neutralizing titanium citrate saturated solution with potassium carbonate powder, and salting out to prepare organic titanium-organic potassium fertilizer. According to the invention, synthesized organic titanium is completely free of chlorine or sulfur ion; the acid solvent and chelating agent, namely citric acid for synthesizing organic titanium has good acidity and neutrality, strong metal ion chelating capability, stable performance, and lower price than other organic acids, thus the comprehensive indexes are optimal when citric acid is selected; and the obtained organic titanium-organic potassium compound organic fertilizer is powder fertilizer, thereby being good in stability, convenient for storage and transportation, good in product water solubility and convenient for use.

The invention provides a determination method for optimal proportion of power supply installation capacity and external power receiving. The determination method comprises the steps of S1, acquiring forecast of a prospective annual load according to a power grid development plane; S2, taking minimum total power generation fuel consumption quantity of all power generator sets in a receiving-end power grid as a target function; S3, constructing a constraint condition by combining active power balance constraint, reactive power balance constraint, active power supply output constraint, reactive power supply output constraint and voltage constraint; S4, performing (N-1) verification and transient stability verification; and S5, solving the optimal proportion of the power supply installation capacity and the external power receiving capacity of a power grid at a receiving end by particle swarm optimization. The external power receiving optimal proportion is solved by a means combining a mathematical model and numerical simulation, the safe and stable running and the power supply demand of the power grid are ensured, a relation between the safety stability and the economy is balanced, sothat the comprehensive index is optimal.

The invention discloses an optimal external power receiving proportional algorithm for an ultra-high voltage accessing to a power grid and belongs to the technical field of power grid distribution. The algorithm comprises the following steps of: 1) determining an optimal power flow objective function; 2) determining an active balance constraint in a constraint condition; 3) determining a reactivebalance constraint in the constraint condition; 4) determining an output constraint of the active power in the constraint condition; 5) determining the output constraint of the reactive power in the constraint condition; 6) determining a voltage constraint in the constraint condition; 7) performing 'N-1' verification for a feasible solution of the optimal power flow; 8) performing transient stability check for the feasible solution of the optimal power flow; and 9) obtaining the optimal proportion of the electrical power capacity and the external electric capacity of a receiving-end power grid. According to the optimal external power receiving proportional algorithm for the ultra-high voltage accessing to the power grid, the problem of unstable external power proportion is solved, and thesafe and stable operation and power supply demands of the power grid are guaranteed by searching the optimal proportion and the optimal balance point of the external power accessing to the power grid,so that the comprehensive index is optimized.

The invention discloses a coating process for material adhesive film decoration. The coating process comprises the following steps that (1) the coating range of a material is determined, and scribingmark is performed; (2) a material fixing unit is selected, and a certain gap exists between the side surface of the material fixing unit and a material male mold surface; (3) a decoration adhesive film is unfolded and fixed, and preheating and baking are performed; (4) vacuumizing is carried out, and the material is coated by the decoration adhesive film; and (5) the excess decoration adhesive film is cut. The coating process has the beneficial effects that the coating range of the material surface is increased, the coating range is expanded to the male mold surface, the structure of the material fixing unit is optimized, the plastic suction direction of the film is effectively controlled, and the purpose of coating to the predetermined position of the male mold surface is achieved. According to the coating process, the process is simple, the high-texture effect is achieved at a low cost, the problem of exposure is thoroughly solved, and the method has good commercial value and application prospect.

The invention discloses a novel energy-saving air conditioner, which comprises a split compressor, an air cooling radiator, a capillary, an air conditioner internal unit evaporator, a first check valve, a recycling liquid tank, a second check valve, a warming liquid tank and a motor, wherein the outlet end of the split compressor is connected to the inlet end of the air cooling radiator, the outlet end of the air cooling radiator is connected to the inlet end of the air conditioner internal unit evaporator through the capillary, the outlet end of the air conditioner internal unit evaporator is connected to the inlet end of the recycling liquid tank through the first check valve, the outlet end of the recycling liquid tank is connected to the inlet end of the warming liquid tank through the second check valve, the outlet end of the warming liquid tank is connected to the inlet end of the split compressor, a heating unit is arranged on the warming liquid tank, and the motor drives the split compressor to operate. The novel energy-saving air conditioner has the advantages of small volume, good refrigeration and heating effects, low production cost, high safety and the like.

The invention discloses a low alkali sulfur acid free floatation technology for high sulfur lead zinc ores, and belongs to the technical field of ore processing. Sulfur concentrate (pyrite) is obtained after lead-sulfur mixing-floating and lead-sulfur separation. Sulfur acid is not used, the environmental pollution caused by sulfuric acid is avoided, the wastewater processing cost is reduced; at the same time, the steps for storing, transporting, and using sulfuric acid are all eliminated, the production and management difficulty is reduced; in lead-sulfur separation, lime, BP, and BH are usedas an inhibitor for pyrite, the novel medicaments (BP, BH) have a good separation effect; the alkalinity of the mineral slurry is low, the using amount of lime is reduced; and solved are problems that the alkalinity of mineral slurry is high, the foams are viscous, the entrainment of gangue is severe, and the comprehensive recovery rate of precious metals such as silver, gold, and the like, is low.

The invention discloses a deep treatment method of naphthenic acid wastewater. Wastewater treatment comprises oil removing treatment, biological treatment, chemical precipitation-coagulation, sand filtration treatment and activated carbon adsorption treatment, wherein the chemical precipitation-coagulation is performed under the alkaline condition for making non-biodegradable naphthenic acid be reacted with lime to generate calcium naphthenate precipitates and remove the precipitated calcium naphthenate precipitates from wastewater under the coagulation action; the sand filtration is performed to treat colloids and suspended matters in wastewater; and the activated carbon adsorption is performed to further treat wastewater-dissolvable microorganism products and other non-biodegradable organic matters. Due to the adoption of the method, organic matters such as naphthenic acid and the like are effectively removed finally, the COD (Chemical Oxygen Demand) of treatment effluent is less than or equal to 50 mg / L, the strict local discharge standard (COD is less than or equal to 60 mg / L) can be met, and the environmental risk of wastewater discharge is lowered; and the method is suitable for performing deep treatment on naphthenic acid in various types of oil refining or oil field wastewater.