161results about How to "Avoid efflux" patented technology

The invention relates to a flotation process method of high-ash-content fine coal slime. According to the method, pre-desliming is carried out by using a flotation coal slime flotation feeding desliming pond invented by Tangshan Guohua Technology International Engineering Co., Ltd., preprocessing is carried out by using a pulverization drop-type coal slurry preprocessor, and rough flotation and fine flotation are carried out by using an air jet flotation machine. The method comprises the following steps of: pre-desliming; preprocessing of the coal slurry; controlling of the feeding concentration of the flotation machine; and dehydration and recycling. According to the flotation process method of the high-ash-content fine coal slime, coking clean coal is sorted from inferior coal slime, the flotation process method is scientific and optimized, perfect indexes of sorting are substantially improved, the outward discharging of slime water is thoroughly avoided, the closed cycle of washing water of a coal cleaning plant is realized, and the method is scientific and environment-friendly.

The invention relates to an intelligent control technology for electroplating synthetical wastewater, wherein through the steps of pH regulation of wastewater, oxidation, reduction, Cr<6+> filtering, heavy metal capture, settling of suspended solids, ion exchange and sludge treatment, the intelligent synthetical treatment of electroplating wastewater is realized, and the technology has the characteristics of high automation degree and good treatment effect. In the invention, the treatment process is finished by a sequencing bath method in a reactor, two or more reactors alternate to realize timely accurate dosing in the wastewater treatment process as well as real-time detection and control before discharge, the stability, reliability and economy of the wastewater treatment quality are guaranteed, and the wastewater treatment stably meets the requirements of the Discharge Standard for Electroplating Pollutants (GB21900-2008); furthermore, the intelligent unmanned operation can accurately control the wastewater treatment time, the drug adding amount and the wastewater treatment quality, so that the volume of the wastewater treatment equipment is reduced, and the treatment cost is lowered.

The invention belongs to the technical field of sintering flue gas purification technologies, and provides a sintering flue gas purification system and method achieving energy conservation and emission reduction in order to solve the problems existing in the prior sintering flue gas purification technology. The system comprises a sintering machine, a flue gas distributor, a sintering machine bottom bellows, a sintering machine large gas duct, an electric dust remover, a sintering main exhaust fan, a first fan, a second fan, an adsorption tower, a chimney, a material conveyor and a regeneration tower. Besides, a heat exchanger is arranged in the sintering machine large gas duct of the system, or the system is further provided with a dust remover, and all the devices are connected sequentially through pipelines. The method includes the steps of utilization of flue gas heat of the sintering machine, adsorption of the adsorption tower and regeneration of active coke. According to the system and method, on the basis of effectively controlling the temperature of flue gas, fully utilizing heat-contained exhaust gas, reducing the scale of an active coke flue gas purification device, avoiding secondary pollution and realizing recycling of resources, the investment and operation expenses are lowered.

The invention discloses a distributed underground reservoir group and a transfer method for mine water in the distributed underground reservoir group. The distributed underground reservoir group comprises more than two underground reservoirs; and the underground reservoirs are respectively connected through water conduit pipelines. According to the distributed underground reservoir group and the transfer method for the mine water in the distributed underground reservoir group, which are provided by the invention, the water conduit pipelines are established among the underground reservoirs and are used for transferring, controlling and centrally draining the mine water in the underground reservoirs, and thus underground water is effectively utilized. Meanwhile, as for the underground reservoirs in different coal seams, the underground mine water is transferred during exploitation, and thus the outside drainage of the mine water during exploitation is avoided and the waste is reduced.

The invention which belongs to the dangerous waste processing field relates to oil sludge processing and provides a new technology for the oil sludge processing. The technology is mainly characterized in that: after the oil sludge is processed with steps of dehydration, extraction, deposition, evaporation, extraction, pumping filtration, drying and the like, the content of oil in soil is 1% and accords with discharge standards, the total loss of solvent oil is about 1%, the recovery rate of product oil is more than 99%, and no waste gases and no wastewater are discharged. The technology whichhas the advantages of scientific method, mature process, simple equipment and large investment-output benefit and allows great technical problems, environmental protection problems and production safety problems which are difficult to solve for a long time in the dangerous waste processing field to be well solved deserves to be popularized and applied to broad petroleum enterprises, petroleum byproduct enterprises, and plant oil processing and oil product storage and transportation enterprises.

The invention provides a method for the leakage detecting and handling of a blast furnace soft water closed circulating cooling system. Through the liquid level difference variation of an expansion tank of a soft water system, the coal gas pressure direction in the expansion tank or a degassing tank can be detected, the phenomenon of bubbles or white turbidity is generated in water flow in a flap flowmeter on a cooling wall of the closed circulating cooling system; during the process that the pH value is continuously and slowly reduced, seepages of water stain and mirabilite can be judged to be generated on an eye plate of a blast furnace shell, so that the judgment shows that the cooling wall or an inner wall of a pipeline is damaged; the flap flowmeter is then utilized, the damage point location of a cooling wall water pipe is determined, and longitudinal treatment is carried out; and a pressure gauge installation pressing leakage detection method is utilized to determine the damage point location of the cooling water pipe, and the lateral treatment is carried out. By the method, the working efficiency is increased, the labor intensity is reduced, leakage points can be found out and treated in real time, and solid foundation is laid for the safety, success production and stable production of a blast furnace.

The invention discloses an environment-friendly public toilet without consuming water, having no odor and separating excrement from urine, and the public toilet provided by the invention is used for solving the problems of the existing public toilet that a great amount of water is consumed, and the excrement and urine are mixed. The environment-friendly public toilet is characterized in that a urinal and a closet pan are arranged on a foundation surface, the bottom surface of the closet pan and the foundation surface are in the same horizontal plane, an excrement pool and a urine pool are arranged below the foundation surface, and the closet pan comprises a urine hole, an excrement hole, an inclined plate, a fan, an air absorbing duct, an air exhausting duct and the like. The environment-friendly public toilet ensures that the consumption of a great amount of water for flushing is avoided, is good in sealing property, and can thoroughly eliminate the discharge of odor by virtue of the running of the fan; and the closet pan can be used for realizing the separation of excrement and urine, so as to prevent the excrement from containing excessive water, be beneficial to subsequent treatment on the excrement and provide organic ingredients for agricultural production. In addition, the environment-friendly public toilet can be used for greatly improving the toile grade and social environment quality, and providing a good toilet environment for people.

The invention discloses an ion-type rare-earth ore ammonium-free environment-friendly exploitation technique. The ion-type rare-earth ore ammonium-free environment-friendly exploitation technique comprises the following steps that an ammonium-free ore leaching agent with a certain concentration is injected through liquid injecting holes distributed in a stope to be subjected to an ion exchanging reaction with rare-earth ores so as to obtain mother liquid enriched in rare-earth positive ions; the mother liquid seeps and gathers into liquid collecting engineering such as matching of ore-layer natural water partition bottom plates or artificial liquid collecting roadways with liquid collecting flow guiding holes; and then the mother liquid is conveyed to a hydrometallurgy workshop through a main conveying pipeline, ammonium-free agents are used for impurity removal and precipitation to obtain rare-earth carbonate, and supernatant liquid is circulated back to a liquid preparation pool andthen subjected to pH valve adjustment and agent adding, and returns to the stope to serve as a new ammonium-free ore leaching agent. The ion-type rare-earth ore ammonium-free environment-friendly exploitation technique has the advantages that ammonium is avoided in the overall process, and environmental friendliness is achieved on soil and water bodies; production waste water is circularly and comprehensively utilized, and harmful waste discharging is avoided; and the leaching rate, liquid collecting rate and precipitating rate of the rare-earth ions are high, and the resource mining comprehensive recovery rate is increased.

The invention provides a targeting carbon nanotube drug delivery system, and a preparation method and applications thereof. The drug delivery system comprises a conjugate and a drug carrying carbon nanotube that is combined with the conjugate in a non-covalent mode; wherein the conjugate comprises a modifying material that can enhance the water solubility and biocompatibility of the drug delivery system and a targeting molecule that is combined with the modifying material in a covalent mode; and the drug carrying carbon nanotube is composed of carbon nanotubes and drug molecules that adsorb on the surface of the carbon nanotubes. One step modification technology is adopted, the problems on purification and yield caused by multi-step modification are avoided; at the same time, the carbon nanotube and drug delivery system are enable to have water solubility, biocompatibility, and multi-functions; the exocytosis of drug resistant tumor cells on drug molecules is effectively overcome, a novel strategy is provided for overcoming multi-drug resistance of tumor cells, and thus the provided drug delivery system has a wide application prospect in the field of drug resistant tumor treatment.

The invention relates to the technical field of salt chemical industry, in particular to a low-grade solid potassium chloride ore solid-to-liquid method for producing low-grade solid potassium chloride ores after dissolving old brine and fresh water according to a certain ratio by utilizing a surface ore dissolving method. The method disclosed by the invention comprises the following steps: 1, a step of introducing the fresh water; 2, a step of introducing the old brine; 3, a step of blending the brine; and 4, a step of conveying the brine to prepare into a potash fertilizer. According to the invention, the flow direction of water in original rivers and lakes to the east of the Qarhan Salt Lake Railway is changed to dissolve the low-grade potassium ores in a mining area, which cannot be directly mined and utilized. Therefore, not only is the repeated utilization rate of the water improved and the service life of a mine is prolonged by dissolving the ores, but also the brine obtained after ore dissolving is returned to the salt lake mining area, the old brine generated after producing the potash fertilizer by mining is all discharged into the ore dissolving engineering to be recycled, the reuse rate of the river is greatly improved, a closed cycle of water resources is formed, the water is furthest saved and the drainage of wastewater is avoided, so that the natural ecological environment of the water resources and the mine resources in the salt lake mining area is protected.

The invention discloses a method for recovering gold and silver from waste gold/silver-containing activated carbon. The method comprises the following steps: sintering invalid and broken waste gold/silver-containing activated carbon through a sintering furnace and making the waste gold/silver-containing activated carbon into blocks, grinding the blocks into powder through a grinding machine, and conveying the powder to a stirring carbon leaching system; stirring until a cyanating solution is leached and gold and silver are adsorbed by the activated carbon; and resolving the gold/silver-loaded high-activity carbon and extracting gold and silver to recover gold and silver in the waste activated carbon. In the method disclosed by the invention, both the adsorption activated carbon and cyanating solution are recyclable, and smoke dust generated from combustion is respectively collected and sprayed to reduce pollution; the involved equipment and apparatus are skillfully applied in industry; therefore, the method is a method for recovering gold and silver in the waste activated carbon, which is simple in equipment, resource-conserving, environmental friendly and low-carbon, economic and cheap, and easy to implement and popularize.

The invention belongs to the field of new auxiliary materials and new dosage forms of pharmaceutic preparations, and relates to preparation of a derivative of L-carnitine as a substrate of an intestinal epithelial cell apical OCTN2 transporter and corresponding targeting nanoparticles, and application of the targeting nanoparticles as oral drug carriers in the aspect of drug delivery. Stearoyl-L carnitine is an amphipathic compound consisting L-carnitine as the substrate of the OCTN2 transporter and stearic acid, and is a targeting ligand which is good in stability and is used for constructing an OCTN2 targeting nano drug delivery system. The stearic acid can be long-chain fatty acids such as octadecanoic acid, palmitic acid and tetradecanoic acid. The structural formula of the amphipathic compound is as shown in the specification.

The invention discloses a positive electrode collector recycling treatment method of a waste lithium ion battery. The method comprises the following steps: adding battery cell powder particles in an alkali liquor to dissolve the positive electrode collector, thereby obtaining the leach slurry; if a piece of copper foil or a battery diaphragm is existent in the leach slurry, firstly screening the leach slurry, and then filtering the screen underflow, thereby obtaining the leach slurry filtrate and the leach slurry filter residue; otherwise, directly filtering the leach slurry, thereby obtaining the leach slurry filtrate and the leach slurry filter residue; adding aluminum hydroxide seed crystal in the leach slurry filtrate to perform the separation by crystallization, and filtering to obtain the crystallized aluminum hydroxide and the alkali liquor, wherein the alkali liquor is recycled as the alkali liquor for dissolving the positive electrode collector. The treatment method disclosed by the invention is less in reagent consumption, low in energy consumption, small in wastewater treatment amount, and capable of effectively separating the collector adhered with the positive electrode material in the waste lithium ion battery.

The invention discloses a Sassafras tsumu seed dormancy breaking and germination accelerating method suitable for the Shandong region, and belongs to the tree planting field. The method is characterized in that the method comprises the steps of seed soaking treatment, oscillation pressure reduction treatment and germination accelerating treatment; and a seed soaking liquid is prepared by adding 0.6g of NaCl, 0.98g of KCl, 0.17g of CaCl2.2H2O, 0.11g of MgCl2.6H2O, 15mg of polyoxyethylene polyoxypropylene ether, 40mg of gamma-aminobutyric acid and 0.2g of astaxanthin to 1000ml of distilled water to prepare a solution. Compared with the prior art, the method has the advantages of acceleration of the Sassafras tsumu seed germination, improvement of the cold resistance of seedlings, and enhancement of the adaptation of Sassafras tsumu seeds to poor surroundings, so a high germination percentage and a high seedling survival rate can be obtained.

The invention provides an organic waste gas recovery device and process, and belongs to the technical field of organic waste gas treatment. The device comprises a condensation system, a membrane separation system, an adsorption system and a vacuum system, the vacuum system comprises a first vacuum pump and a second vacuum pump which operate independently, an inlet and an outlet of the first vacuum pump are connected with the membrane separation system and the condensation system respectively, and organic gas separated from the membrane separation system is circulated back to the condensation system through the first vacuum pump; an inlet and an outlet of the second vacuum pump are respectively connected with the adsorption system and the condensation system; and desorbed organic gas in the adsorption system is circulated back to the condensation system through the second vacuum pump. According to the invention, the membrane separation system and the adsorption system respectively carry out organic gas and air separation and organic matter desorption through independent vacuum pumps, so that the two systems do not interfere with each other, the intermittent vacuum operation of the adsorption system does not influence the continuous vacuum operation of the membrane separation system, and the working stability of the membrane separation system is effectively guaranteed.

The invention relates to a coal slurry clarification and control method based on water quality regulation, which is suitable for the treatment of the circulating coal slurry of a coal preparation plant. Firstly, the feeding concentration and water hardness are measured to determine the nature of and classify the coal slurry according the water hardness value and a water quality regulating agent is added according to the water hardness to regulate the water hardness; the water quality hardness value is real time monitored to control the adding quantity of the water quality regulating agent to regulate the water quality of the coal slurry to a total hardness of larger than 50 German degrees, thus changing the hard settled coal slurry into an easy settled coal slurry firstly. The hardness and the concentration of the overflow water of a thickener are measured, and if the total hardness of the coal slurry is less than 50 German degrees, the water quality regulating agent should be continuously added until the total hardness of the coal slurry is larger than 50 German degree; the concentration value of the overflow water is also referred to, if the concentration value is more than 1g/l, the flocculant is further added until the concentration value is less than 1g/l. The method of the invention can prepare coal with fresh water, thus enhancing the utilization rate of water, preventing the outflow of the coal slurry and the environmental pollution of the mining area reducing the running off and the waste of coal resources and having small loss of coal. The total expenses of the invention is lowered by 20 to 80 percent than the prior art, with simple and easy operated method.

The invention discloses a self-emulsifier containing a breviscapine phosphatidylcholine complex, and a preparation method and a use thereof. The self-emulsifier comprises the following components, by mass, 0.1-16% of breviscapine, 0.1-32% of phosphatidylcholine, 20-70% of an oily phase, 10-50% of a surfactant, and 0-40% of a cosurfactant. An insoluble dug breviscapine is processed to prepare a breviscapine phosphatidylcholine complex, and the breviscapine phosphatidylcholine complex is treated as an intermediate carrier to prepare the self-emulsifier containing the breviscapine phosphatidylcholine complex. The breviscapine phosphatidylcholine complex can effectively solve a bad fat solubility problem of breviscapine and substantially improve the drug loading capability of the self-emulsifier; and the self-emulsifier can increase the dissolution rate of breviscapine, promote breviscapine to penetrate epithelial cells, promote the lymphatic transport of drugs to a certain degree, reduce the hepatic first pass metabolism of the drugs and improve the oral bioavailability of breviscapine. Oral administration tests of rats show that the self-emulsifier containing the breviscapine phosphatidylcholine complex can substantially improve the absorption of breviscapine and improve the oral bioavailability of breviscapine.

The invention discloses a production system and process for co-production of industrial-grade nitric acid and electronic-grade nitric acid. The production system comprises an NOX separator; a materialoutlet of the NOX separator is communicated with a material inlet of a tail gas absorption tower and a material inlet of an electronic-grade nitric acid preparation tower; a first material outlet ofthe electronic-grade nitric acid preparation tower is communicated with the material inlet of the tail gas absorption tower; a second material outlet of the electronic-grade nitric acid preparation tower is communicated with a material inlet of the ultrafiltration device; a material outlet of the ultrafiltration device is communicated with a material inlet of an intermediate storage tank; a material outlet of the tail gas absorption tower is communicated with a material inlet of a bleaching tower; a material outlet of the bleaching tower is communicated with a material inlet of a cooling device; a material outlet of the cooling device is communicated with a material inlet of an industrial nitric acid tank. The production system is low in energy consumption, convenient to use, safe, efficient, simple in production process and high in production efficiency.