294results about How to "Achieve environmental protection" patented technology

The invention discloses a network technology based storage cloud backup method. The method comprises the following steps: establishing a private cloud for idle storage space on each computer node in an internal network of an enterprise; initiating a backup request to a target node by a backup initiating node; hierarchically storing data by the backup initiating node according to data importance grade, backing up superior data in a public cloud, and other data except the superior data in the private cloud. The method solves the technical problems that data backup and recovery efficiency are affected due to the fact that storage equipment purchased by the computer has over high price, and the bandwidth of the external network of the company is not sufficient, and achieves the aims of storage backup and remote disaster recover for company data by using minimum cloud storage space under a condition that medium-small enterprises have limited network bandwidth.

The invention discloses a beneficiation method for a pure magnetic iron ore. A crude ore is sequentially treated according to the steps such as first crushing, first-stage dry-type magnetic dressing, medium crushing, second-stage dry-type magnetic dressing, fine crushing and third-stage dry-type magnetic dressing, fine ore is obtained after a great amount of gangues are thrown by the third-stage dry-type magnetic dressing and sent to a grinding head sieve to be griddled and separated, granules griddled by the grinding head sieve are treated in a first-section magnetic dressing process, rough ore griddled by the grinding head sieve is treated in a first-section ball grinding and then enters the first-section magnetic dressing process; ore aggregates obtained from the first-section magnetic dressing process are treated in a second-section ball grinding after discharging gangue sands till the granularity of ore powder is -200meshes being more than or equal to 60 percent, ore powder generated from the second-section ball grinder are treated in second-section magnetic dressing, ore aggregates generated from the second-section magnetic dressing are treated in a high-frequency sieve after discharging gangue sands, products positioned on the high-frequency sieve are filtered to obtain ore concentrate, and products positioned below the high-frequency sieve are treated with desliming and then treated with floatation. The invention adopts two sections of grinding ore open-way processes and distinguishes the ore aggregates during the ore dressing process, thereby greatly reducing the energy consumption of a system, lowering the production cost and enhancing the utility ratio of equipment.

The invention relates to a novel dual-oscillation revolving drum washing machine, which is suitable for the water scrubbing, bleaching and open-width processing technique of knitted and woven fabrics. The novel dual-oscillation revolving drum washing machine comprises a box body (1), wherein, flumes (9) are vertically arranged on the lower part inside the box body, and the number of the flumes (9) is two, with one on the left and one on the right; an external wire roll (2) is respectively arranged inside the two flumes (9); a plum-blossom roll (10) is respectively arranged inside the two external wire rolls (2); a reticulated revolving drum (5) is vertically arranged on the middle of the upper part inside the box body (1); and the upper side of the reticulated revolving drum (5) is provided with a spray device (3). By adoption of the novel dual-oscillation revolving drum washing machine, the amount of water, steam and an auxiliary agent is small; the water scrubbing effect is good; and the quality of the textile fabrics after water scrubbing is good.

The invention discloses laminated glass with a nanometer thermal insulation coating, which comprises two or more layers of glass plates, a laminated layer arranged between the glass plates, and the nanometer thermal insulation coating consisting of nanometer painting. The laminated glass in the prior art is further innovated and designed by increasing the nanometer thermal insulation coating organically combined together with the laminated glass, so the product of the laminated glass with the nanometer thermal insulation coating has good strength, good thermal insulation effect and sound insulation effect of the laminated glass, can absorb 99 percent of ultraviolet rays, 75 percent of infrared rays and 15 to 20 percent of visible light, not only can maintain glass lighting and aesthetic needs, but also can directly block solar thermal radiation, achieves the aim of thermal insulation and energy saving, and has the characteristics of environmental protection and energy saving.

The invention relates to a LED bulb having light on the back, including a lamp body, a lamp seat and a lamp head, the inner of the lamp body is provided with LED lamps, the shape of the lamp is protruding surface, inside which is partly provided with a convex mirror, or the outside is partly provided with curved surface. The convex side on the inner surface of the lamp protruding surface is coated with tapetum lucidum, which adds the reflecting effect. The invention has the following beneficial effect: through the convex mirror and the concave surface to reflect the LED light, the light can be reflected to the back of the lamp, thereby advancing the photometric brightness of the lamp back, eliminating the shadow to make the illuminating and decorative effect even better. The invention has simple structure, easy realization.

The invention discloses an organic fertilizer or a bio-mixed organic fertilizer special for rice and a preparing method thereof. The organic fertilizer or the bio-mixed organic fertilizer special for rice is prepared by composting and fermenting raw materials (dry basis) according to the following weight percentage: 10%-20% of straw stalks, 25%-30% of rice chaff (bran), 25%-35% of rapeseed cakes (dregs), 5%-20% of sugar refinery filtered mud, 5%-10% of bagasse ash and 0.1% of ferment bacterial fertilizer. The organic fertilizer or the bio-mixed organic fertilizer is good in fertilizer effect and environment-friendly, can lead nutritional components absorbed by rice, rape and sugarcanes from the soil to return to the land so as to restore soil fertility, leads circular economy to be developed, use quantity of fertilizers and pesticides are reduced, green and organic agricultural products are produced, production cost and environment cost are reduced, food safety is improved, environment is protected, and modern agriculture and green agriculture development are promoted.

The invention relates to a demisting device which is used in a refrigeration facility that produces waste heat. The demisting device comprises a first air door, a second air door and a demisting controller. One end of the first air door is connected with the waste heat outlet of the refrigeration facility, and the other end thereof is guided into a surface of the refrigeration facility. One end of the second air door is connected with the waste heat outlet of the refrigeration facility. The demisting controller is eclectically connected with the first air door and the second air door respectively to control the opening / closing thereof.

The invention relates to an LED (Light Emitting Diode) streetlight with a communication function and an intelligent control system thereof. The intelligent control system comprises a total network control center, an area network control center and an LED streetlight, wherein the total network control center is connected with the area network control center through a third network, receives a signal fed back by the area network control center and can transmit a control signal to the area network control center. The area network control center is in charge of collecting the state of the LED streetlight and work environment information in an area and transmitting communication or control information to the LED streetlight through a first network. The LED streetlight comprises a power supply module, an LED light, a signal transceiving module and a power supply control module. Because the intelligent control system of the LED streetlight comprises the LED streetlight with the signal transceiving module and the area network control center with the intelligent control function, the intelligent control to the LED streetlight can be realized, and the dependence degree of the entire system on people is reduced.

The invention discloses a marine wave-energy power generating device. In the invention, a hydraulic cylinder serves as an input end of a hydraulic transmission system, a piston rod of the hydraulic cylinder is linked with a pendulum-bob water baffle through a gear transmission mechanism, and the body of the hydraulic cylinder is linked with a fixed base; an oil inlet / outlet port of an oil cavity of the hydraulic cylinder is forked into two paths, one path is linked with a high-pressure energy accumulator through an oil outlet one-way valve and a high-pressure pipeline, and the other path is linked with a medium-pressure energy accumulator through an oil-return one-way valve and an oil-return pipeline; a rodless cavity of the hydraulic cylinder is linked with a low-pressure air chamber through an air outlet and an air pipe of the rodless cavity; an extending side of a piston rod of the hydraulic cylinder is consolidated and tightly fit with a hydraulic cylinder cover to form a cylinderexternal cavity which is hermetically isolated from seawater, and the cylinder external cavity is linked with the low-pressure air chamber through an air outlet and an air pipe of the cylinder external cavity so as to assist the realization of the free reciprocating motion of the piston rod; and the high-pressure energy accumulator and the medium-pressure energy accumulator are respectively connected with a hydraulic motor, and the hydraulic motor drives a generator to work. According to the marine wave-energy power generating device disclosed by the invention, the purposes of energy saving, emission reduction, low carbon and environment friendliness can be achieved.

The present invention relates to coal additive and method for raising coke output and performance. The coal additive contains surface activating catalyst, co-solvent, permeation assistant and solvent. When the coal additive is used, the surface activating catalyst is dissolved in the solvent, added into coal through a specific mode, and distributed on the surface of coal and inside coal under the action of the permeation assistant. During producing coke, the coal additive is heated and the volatile component is separated out, to raise the output and performance of the produced coke. The high performance coke may be used in coal burning, dry distilling, gasifying, liquefying and other fields. The present invention can reach the aims of raising the utilization rate of coal, saving coal resource, reducing pollutant, etc.

The invention relates to a cellulose viscose producing process engineering using tea, which includes: tea stock preparation, cutting, screen selecting, material washing, preliminary treatment, cooking, desanding and concentrating, chloridization, alkali refining, albefaction, acid treatment, desanding and concentrating, manufacturing, impregnation, squeezing, comminution, old, yellowing, grinding, solubilization, filtering, debubbling, filtering, spinning, drafting, cut off, post treatment, drying, and packing, wherein, a demulcent pulping process is used in the manufacturing technique, a protecting agent is added, and an enzyme treatment process is added. The invention utilizes tea as raw material to produce cellulose viscose, which initiates tea application in textile industry; and reserves the intrinsic antimicrobial and antiradiation substance tea polyphenol in tea, and features of environment protection, pure and fresh, coolness, etc., thereby the fiber thereof has natural performance of antimicrobial, bacterium suppressing, sterilizing, antiradiation, etc., and a novel field is created for the development of the cellulose viscose functional products thereof.

The invention relates to a test device for simulating permafrost region well heat insulation or heating. The test device is characterized in that a test tank is a circular interlayer barrel body consisting of an outer ring, an inner ring, a top plate and a bottom plate, a soil body is filled in an interlayer, a refrigerating liquid circulation passage is arranged inside the top plate and the bottom plate, is connected with a refrigerating temperature control device and is in contact with the soil body, water is filled in a water tank, the water tank is arranged in the test tank, a heat insulation barrel is placed between the water tank and the test tank, heat insulation covers are placed on and under the water tank, a water replenishing device is connected with a water tank bottom plate through a water replenishing pipe, a water pressure gauge is arranged on the water replenishing pipe, a water pumping device is connected with a water tank top cover through a water pumping pipe, the water pumping pipe is inserted into water of the water tank, a flow meter is arranged on the water pumping pipe, a heating temperature control device is connected with a heating pipe through a conducing wire, the heating pipe is inserted into the water of the water tank, and temperature sensors are arranged in the solid body and the water of the water tank and are respectively connected with a digital collecting instrument. The test device has the advantages that the permafrost region well is simulated, the reasonable well diameter, the water pumping speed, the heat insulation thickness and the power of a heating device are obtained, and the goals of energy saving and environment protection are reached.

The invention provides a method for preparing a 13X molecular sieve through using high-alumina fly ash, and the 13X molecular sieve. The preparation method comprises the following steps: mixing the high-alumina fly ash with an alkali solution for a pre-desiliconization reaction, and filtering to obtain a desiliconized solution; mixing the desiliconized solution with white carbon black to obtain a modified desiliconized solution; mixing the modified desiliconized solution with an aluminum sauce to obtain a silicon and aluminum sol; and crystallizing the silicon and aluminum sol, filtering, washing, and drying to prepare the 13X molecular sieve. The invention also provides the 13X molecular sieve prepared through the preparation method.

The invention relates to chiral magnetic nano-particles and preparation and application thereof. The preparation comprises the following steps of: (1) preparing Fe3O4 magnetic nano-particles; (2) preparing Fe3O4 / SiO2 composite magnetic nano-particles; (3) preparing cellulose-2,3-di(3,5-dimethyl phenyl carbamate); and (4) performing surface chiral modification on the Fe3O4 / SiO2 composite magnetic nano-particles by using the cellulose-2,3-di(3,5-dimethyl phenyl carbamate). The chiral magnetic nano-particles are used for separating a racemic compound DL-1-phenethyl alcohol, and an optical rotation value test for obtaining components through singly spinning a guide sample and separation proves that laevo-rotation and dextro-rotation are separated very well. The chiral magnetic nano-particles have the advantages of short separation time, simple and convenient operation, and good separation effect of chiral compounds; besides, the chiral magnetic nano-particles can be thoroughly separated from base solution under an external magnetic field, and not only cannot cause pollution to a target separation object but also can be completely recycled, thereby fulfilling two aims of ecumenical efficiency and environmental protection.

The invention discloses a system and a method for converting steel slag into renewable resources. The system comprises a steel slag powdering system, a steel slag separating system and a tail slag deep processing system, wherein the steel slag powdering system comprises desulphurization slag equipment, converter slag equipment, casting residue equipment and granulation self-extracting equipment which is communicated with the desulphurization slag equipment, the converter slag equipment and the casting residue equipment respectively; the steel slag separating system is connected with the granulation self-extracting equipment and comprises overturn vibration equipment, a magnetic separator, a crushing machine, a rod mill, screening / magnetic separation equipment and material storage equipment, wherein the overturn vibration equipment, the magnetic separator, the crushing machine, the rod mill, and the screening / magnetic separation equipment are led to the material storage equipment; the tail slag deep processing system is connected with a fine tail slag device and comprises a drying mechanism, a coarse grinding mechanism, a fine grinding mechanism, a first winnowing mechanism, a second winnowing mechanism, a first magnetic separation mechanism, a second magnetic separation mechanism and a steel slag fine powder groove. By the combination of the structures of the system, the design construction of the system for converting the steel slag into the renewable resources, which is clean and environment-friendly and reduces occupation space, is realized.

The invention discloses a preparation method and an application method of a low-temperature low-chromium dyeing auxiliary agent of an acidic medium dye for wool. The preparation method comprises the steps that: 1, protein powder is prepared by using waste duck feather, wherein (1) the duck feather is subjected to pretreatment; (2) the suck feather is subjected to a dissolving treatment; and (3) duck feather protein powder is prepared; 2, a sodium hydroxide solution is prepared, and the sodium hydroxide solution is used for dissolving the duck feather protein powder; 3, sodium hydroxide, triethanolamine, and epichlorohydrin are adopted for preparing a cationic quaternary ammonium salt cross-linking modification agent WLS; and 4, the low-temperature low-chromium dyeing auxiliary agent for the acidic medium dye is prepared. The auxiliary agent can be used as a wool modification agent. After wool fibers are modified, wool fiber dyeing properties of acidic medium dyes are greatly improved, dye uptake percentage rate can be improved, mordant absorption performance of the dye is improved, chromium pollution in dye wastewater is reduced, wool fiber low-temperature low-chromium dyeing is realized, and waste duck feather keratin is effectively utilized. After modification, the wearability of wool products is improved.

The invention discloses a magnetically separated bamboo charcoal-based wastewater treatment agent and a preparation method and the application of the treatment agent. The saturation magnetization intensity of the treatment agent is 5-10 emu / g, and the specific surface area of the treatment agent is 90-130 m<2> / g. The treatment agent is prepared via the following steps: (1) cleaning bamboo charcoal, suction filtration, drying, breaking and obtaining bamboo charcoal powder; (2) weighting two or more types of transitional metal salts, adding deionized water, preparing and obtaining a mixed solution; (3) dispersing the bamboo charcoal powder into the mixed solution, ultrasonically and uniformly stirring, dropwise adding precipitant, depositing, regulating pH value to 7-10, heating, stirring at a constant temperature to react, standing, layering, pressure reducing, suction filtration, and obtaining a deposit; and (4) immersing the deposit in hydrochloric acid solution, suction filtration, scrubbing to neutrality, drying and sintering. The treatment agent is applicable to treatment of dye wastewater, fluoride wastewater, or heavy metal ion wastewater, is large in specific surface area, good in absorption performance, time-saving, safe, efficient, inexpensive, environmentally-friendly, economic, and simple in process, and can achieve continuous separation and recovery.

The invention discloses a circulating dehydration device, which comprises a cylindrical body, a filtering structure, a porous groove body, a water supply module and a driving module, wherein an isolating structure is arranged inside the cylindrical body to separate the cylindrical body into a first accommodating space and a second accommodating space; a valve is arranged on the isolating structure; the filtering structure is arranged in the first accommodating space; the porous groove body is rotationally arranged in the second accommodating space; the water supply module comprises a water supply moving piece and a guide pipe, wherein the water supply moving piece corresponds to the porous groove body and is arranged in the second accommodating space; the guide pipe extends from the second accommodating space to the filtering structure in the first accommodating space; and the driving module extends from the exterior of the cylindrical body to the interior of the cylindrical body and is linked to the porous groove body and the water supply moving piece. Due to the structure, the circulating dehydration device can be used for draining liquid of a mop and circulating, filtering and cleaning the liquid. The circulating dehydration device has water-saving, time-saving, energy-saving and environmentally-friendly characteristics.

The invention provides a sludge treatment device using waste heat of a boiler and a treatment process thereof, relates to a sludge treatment device using waste heat of a boiler and improvement of a treatment process thereof, in particular to a sludge treatment device using waste heat discharged by fume of a boiler and a treatment process thereof. The sludge treatment device comprises the boiler, wherein the boiler is respectively connected with a coal conveying belt device and a fume discharge treatment device. The sludge treatment device is characterized in that the fume channel of a fume discharge device is connected with a drier through an induced draft fan and a cyclone separator; the side of the drier is connected with a sludge storage warehouse; the drier and the bottom of the cyclone separator are connected with a finished product warehouse through a belt conveyer; and the finished product warehouse is connected with the coal conveying belt device through a spiral conveyer. The treatment process comprises the following steps: firstly, introducing fume in the fume discharge channel of the boiler into the drier to dry sludge; and sending tail gas in the dried sludge into the fume discharge channel of the boiler, and then returning the residual sludge to the boiler to participate in combustion.

Production of steam-pressing fly-ash brick with big blending account is carried out by batching dewatered fly-ash, slag or aggregate chips, lime crystal or plaster by proportioning, agitating, digesting, wheel milling, mechanical shaping, maintaining blanking brick, piling blank, and steam maintaining in steam-pressing kettle at high temperature and pressure. It achieves light weight, high strength, soil and energy saving, and no environmental pollution.

The invention relates to a lightweight gypsum block and its preparation method. The block comprises the following components, by weight, 70-80% of desulfurized gypsum, 10-15% of ultrafine steel slag powder, 10-15% of perlite, 1-1.5% of a steel slag excitant, 0.3-0.5% of PP fiber, 0.05% of a retarder, 0.01-0.05% of a foaming agent and the balance water. According to the invention, industrial waste residues such as desulfurized gypsum, steel slag and the like are used as main raw materials to prepare the gypsum block, thus opening up a new way for comprehensive utilization of industrial solid wastes. Production cost of the gypsum block is reduced, and dual effects of environmental protection and waste utilization are achieved. Due to the addition of the ultrafine steel slag powder and the excitant, strength and water resistance of the product are enhanced. The prepared gypsum block has effects of light weight, sound insulation, thermal insulation, moisture retention and the like, and has good anti-seismic property. According to the invention, a new way for resource utilization of the solid wastes desulfurized gypsum and steel slag is opened up, natural environment is protected, and resources and energy are saved.

The invention relates to a method and a system suitable for recovering waste heat of blast furnace slag flushing water. The method comprises the following steps of: S1, filtering the high-temperature blast furnace slag flushing water and then storing in a hot water tank; S2, performing pressure delivery on the hot water; S3, delivering the hot water to an absorption refrigerating unit or a heating device or a cooling tower; and S4, delivering the water flowing out of the absorption refrigerating unit or the heating device or the cooling tower to a blast furnace slag treatment system to flush slag. The system comprises the blast furnace slag treatment system, the hot water tank and a circulating pump which are connected sequentially, and the cooling tower, the absorption refrigerating unit and the heating device which are connected in parallel. By adopting the method and the system, the low-temperature waste heat in the blast furnace slag flushing water can be fully utilized, so that the aims of energy conservation and environmental friendliness are fulfilled, the seasonal problem of the slag flushing water waste heat recovery is solved, and the recovery rate of the waste heat of the high-temperature slag flushing water is improved.

The invention discloses an extra-large-span truss string off-site hoisting construction method. The method comprises the steps that accurate blanking and machining are carried out, and single trusses are spliced; a sliding track is laid, and a supporting jig frame and a temporary supporting frame are built; a track hoist is used for hoisting the first truss to the temporary supporting frame and hoisting the second truss to the supporting jig frame, and the second truss and the first truss are connected into a rigid whole; an in-situ synchronous symmetrical graded tensioning method is adopted for detecting that tension slow coordinated deformation achieves the self-balance system deformation of a truss string; the temporary supporting frame is detached after an auxiliary truss is installed; the first truss and the second truss are integrally moved forwards by one unit through a hydraulic crawl device; in the same way, all the following trusses are installed one by one in an accumulated sliding mode; and finally unloading is carried out. Splicing is carried out outside a building site and does not affect other professional synchronous construction; hoisting and sliding construction is adopted, the number of the supporting jig frames and large hoisting machines is reduced, and economic benefits are remarkable.

The invention relates to a foaming polypropylene composition. In the foaming polypropylene composition, a polypropylene component is used as a substrate material, a hindered phenol antioxygen and a phosphite ester antioxygen form an antioxygen system, talcpowder or calcium carbonate is used as a nucleating agent and monoglyceride is used as an activator. The composition disclosed by the invention has the characteristics of simple and stable preparation process, high processing performance and the like; and the density of the high-power foamed product formed by extruding the composition is controllable within a range from 18 to 100kg / m<3>, the maximum foaming power can reach 50 times, and the foaming polypropylene composition has the characteristics of closed pore structure, fine and uniform foam pore size, and the like. The polypropylene high-power foamed product has the characteristics of high comprehensive mechanical performance, high energy absorbing and buffering effect, environment friendliness, easy recycling and the like and can be used in fields of automobiles, high-quality electronic packages, buildings and the like with energy-saving and environment-protection effects and other effects.

The invention discloses a compound fertilizer special for hickories. The compound fertilizer special for the hickories is prepared from, by weight, 30%-40% of organic fertilizer, 8%-12% of urea, 15%-20% of monoammonium phosphate, 20%-30% of potassium nitrate, 1%-2% of borax, 1%-2% of copper sulfate, 1%-2% of zinc sulfate, 0.8%-1.2% of ferrous sulfate, 0.1%-0.5% of gamma-polyglutamic acid and the balance auxiliary. The organic fertilizer is obtained by mixing duck manure, straw, hickory nut shells, rice chaff and an EM bacterial fermenting agent through fermentation, and the auxiliary is obtained by mixing attapulgite powder and modified cassava powder. According to the compound fertilizer, the organic matter content is larger than or equal to 15 wt%, the sum of the content of nitrogen, phosphorus and potassium is larger than or equal to 30 wt%, the content of nitrate nitrogen is larger than or equal to 4 wt%, the compound fertilizer can effectively improve soil properties, optimize ecological environment, facilitate growth of the hickories, enhance the tree vigor and gain stress tolerance, and the multiple purposes of environment friendliness, production increasing and effect increasing are achieved.

The invention provides a compound bird repellent containing carbosulfan, methyl ortho-aminobenzoate and benzyl acetate. The compound bird repellent is prepared by mixing the three active ingredients including the carbosulfan, the methyl ortho-aminobenzoate and the benzyl acetate in proportion, wherein the mass ratio of the carbosulfan to the methyl ortho-aminobenzoate is (2 to 1)-(1 to 20), and the mass ratio of the methyl ortho-aminobenzoate to the benzyl acetate is (1 to 1)-(1 to 2). After the compound bird repellent is used, the harm such as seedling shortage, damage to fruits and grains at the harvest time and the like caused by mass feeding of birds to the field crops, orchards and the like can be effectively avoided.

The invention discloses a battery jar and battery cover hot runner plastic mold for a storage battery. The mold comprises a mold main body; a heating system is arranged inside the mold main body; anda movable interface is arranged in the mold main body and is fixedly connected to the mold main body through screws. The battery jar and battery cover hot runner plastic mold for the storage battery adopts a hot runner plastic mold, a temperature control cabinet is arranged and has the over-high temperature warning function and the automatic adjusting function, the temperature in an integral hot runner system can be effectively adjusted through the temperature control cabinet, so that the temperature change of a solution body can be controlled within the required precision range, raw materialsremaining inside the mold cannot be cooled and can be prevented from being crushed by crushing equipment again, no dust can be generated on a production site, occupational injuries to staff can be avoided, environmental pollution can be avoided, and therefore the environmental protection effect can be achieved.

The invention discloses a photovoltaic LED direct-current power supply control system which comprises a photovoltaic array, a controller, an energy storage battery, a drive control module, an LED load, a grid-connected inverter and a public supply network. The controller is connected with the photovoltaic array and used for carrying out voltage conversion on direct currents output by the photovoltaic array to charge the energy storage battery and detecting the electric quantity of the energy storage battery. After the electric quantity of the energy storage battery is saturated, redundant electric energy is input to the grid-connected inverter by the photovoltaic array. The drive control module is connected with the energy storage battery and used for carrying out voltage conversion on output voltages output by the energy storage battery to supply power to the LED load. The grid-connected inverter is connected with the photovoltaic array and the public supply network and used for carrying out contravariant conversion on the redundant electric energy output by the photovoltaic array to form alternating currents to be conveyed to the public supply network. Direct-current direct supply is really achieved, conversion links are reduced, the effects of environmental protection and energy saving are achieved, and meanwhile the functions of peak regulation and the like are achieved.

The invention discloses an oxygen combustion method for a glass fiber tank furnace passage, which is characterized in that oxygen and fuel gas enter an oxygen combustor through an oxygen pipe and a flue gas pipe respectively, and are combusted in a flame space of the tank furnace passage to heat molten glass on the lower part of the tank furnace passage. The oxygen is prepared by an air separation method, and the concentration of the oxygen is between 50 and 100 percent; and the temperature of the tank furnace passage is between 1,000 and 1,450 DEG C. The oxygen combustion method for the glass fiber tank furnace passage uses the oxygen to replace air and fuel for combustion, improves the flame combustion temperature and the heat utilization efficiency, and reduces generation of waste gas during combustion and energy loss carried away by the waste gas, thereby reducing the production energy consumption and the production cost and achieving the aims of energy conservation, emission reduction and environmental protection.

The invention discloses a liquid-state composite fire preventing and extinguishing retardant and a preparation technique thereof, relating to the technical field of retardants. According to a formula, the liquid-state composite fire preventing and extinguishing retardant comprises the following components in percentage by weight: 10%-20% of magnesium hydroxide, 5%-10% of aluminum hydroxide, 3%-5% of sodium percarbonate, 7%-10% of sodium bicarbonate and 2%-5% of magnesium chloride. The preparation technique comprises the following steps of adding the components into 37%-66% of water, stirring, adding a penetrating agent, a suspending agent, a stabilizing agent, a preservative, a water-retaining agent, an adsorbing agent and a foaming agent into the obtained mixed liquid, and filtering, cooling, stirring and standing, so as to prepare transparent mixed liquid, namely the liquid-state composite fire preventing and extinguishing retardant. The liquid-state composite fire preventing and extinguishing retardant has the beneficial effects that the retardant rate is increased, and the retardant further has effects of environmental protection, disinfection, corrosion prevention and sterilization; by adding the water-retaining agent, the water solubility of the retardant is improved, so that after the retardant penetrates into a coal body, the wettability of the coal body is increased, dust on a coal mining face is greatly reduced, the production safety factor is increased, the underground working environment is improved, and the environment is protected.