32results about How to "No other pollution" patented technology

The invention relates to the technical field of surface treatment, in particular to an electrochemical burring device and a burring process thereof. The invention mainly performs the burring of a casting through the electrochemical process, and the burring device comprises an operating platform and a tool fixture capable of moving freely. The operating platform comprises an operating window for fetching the tool fixture, and an electrode connected with an anode. The tool fixture comprises a base fixture and a top cap fixture capable of being buckled with the base. Due to that the tool fixture is connected with a cathode, the top of the operating platform is connected with the anode, the end top of the red copper electrode is of 0.2-1 mm lower than the top surface of the through hole on the side deviated from a conducting device of the top cap fixture, the invention can greatly enhance the work efficiency, save the labor cost, and the alloy-steel casting is hardly of electric breakdown during the burring of the alloy-steel casting, thereby protecting the integrity of the alloy-steel casting.

The invention relates to a method for comprehensively utilizing chlor-alkali salt sludge, which comprises the following steps: mixing and filtering the chlor-alkali salt sludge and water to obtain a first filter cake and first filter liquor; adding alkali liquor to the first filter liquor, and filtering to obtain a second filter cake and second filter liquor; adding the alkali liquor to the second filter cake, and filtering to obtain a third filter cake and third filter liquor; calcining the third filter cake; adding hydrochloric acid to the third filter liquor, and filtering to obtain a fourth filter cake and fourth filter liquor; drying the fourth filter cake; adding the alkali liquor to the second filter liquor, and filtering to obtain a fifth filter cake and fifth filter liquor; calcining the fifth filter cake; adding the alkali liquor to the fifth filter liquor, and filtering to obtain a sixth filter cake and sixth filter liquor; mixing the sixth filter cake and the water into slurry, and carrying out the spray drying on the slurry; introducing CO2 into the sixth filter liquor, and filtering to obtain seventh filter liquor and a seventh filter cake; and calcining the seventh filter cake. The method respectively extracts various materials by adding acid and alkali to the chlor-alkali salt sludge and successively filtering, and has the advantages of simple production process flow, low equipment requirement and no other pollution after the treatment is finished.

The invention discloses a preparation method for magnesium nano-particles, which belongs to the technical field of nano-material preparation. The invention is characterized in that the MgO nano-particles are prepared by adopting the method of arc discharge in liquid nitrogen medium, consumable pure magnesium anode under the non-vacuum condition, wherein, an inner hole is opened at the end face of a cathode, and an anode is arranged in the inner hole at the end part of the cathode. Under the action of air flow, air is involved in a reaction zone of arc discharge, oxygen atoms are supplied for the generation of MgO, and the nano-particles of the MgO are synthesized by the arc discharge. The preparation method has the advantages of simple equipment and controllable process parameters. The industrial pure magnesium stick which is taken as raw material in preparation is abundant and the cost of the raw material is low. Mg nano-particles with the shapes such as non-regular flake, hexagonal flake, hexagonal lantern, nearly hexagonal structure or nearly spherical shape can be prepared, and the particles have no other pollutions.

The invention belongs to the technical field of biochemistry, and concretely relates to a hemolytic agent used for detecting glycosylated hemoglobin and a preparation method and an application thereof. The hemolytic agent comprises a phosphatic buffer solution, sodium chloride, phosphoric acid and an aqueous medium; and content of the phosphatic buffer solution in the hemolytic agent is 6-30 g/L.According to the hemolytic agent, the detection accuracy after sample processing is high, the sample processing time is 10-30 s, and compared with same kind reagents, the processing time is short; thehemolytic agent can directly substitute an imported original product hemolytic agent, same detection capability with the imported reagent can be achieved, medical cost is reduced, and medical cost isreduced for patients.

The invention relates to a method for leaching heavy metal contaminated soil by ultrasonic strengthening organic acid. The method comprises the steps of firstly, mixing organic acid and the heavy metal contaminated soil, and then leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid, wherein the ultrasonic frequency is 20-40kHz, the ultrasonic sound energy density is 20-50W/ L, and the time for leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid is 5-20 minutes. After the method is used, the leaching effect of the heavy metal contaminated soil is improved, and the morphology distribution of the heavy metal is changed; the repair for leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid is an environment-friendly repair method; the method is simple in technology, short in leaching time and good in repairing effect.

The invention relates to quality grading water supply reforming method and system with a roof water tank and a building water supply pipe network. The reforming method comprises five steps of prophase preparation stage, metaphase water tank reforming stage, metaphase building water supply pipe network reforming stage, metaphase individual indoor water supply pipe network reforming stage and anaphase running management stage. The reforming system comprises a water chamber, a gas chamber, a purifying chamber and a building quality grading water supply pipe network system, wherein the water chamber comprises direct drinking, living and washing water source rooms; a building quality grading water supply main pipe network for direct drinking, living and washing is correspondingly connected with a quality grading water terminal and a water tank quality grading water discharging total opening respectively according to same function; the gas chamber comprises a unit modularized assembly type breathing bladder bag group; and the purifying chamber is provided with an assembly type unit modularized quality grading purification water supply unit. The invention prevents the secondary pollution of water and volatile waste of residual chlorine and has the effects of no cleaning, no water stop, full utilization, no waste, energy saving, emission reduction and quality grading water supply as required.

The invention relates to titanium gypsum used in cement, and a treatment method thereof by using stalk black ash. The method comprises processes that: 1, raw materials of titanium gypsum and stalk black ash with an ignition loss higher than 1% are adopted and mixed according to a weight ratio of 75:25; 2, the materials are blended and molded, wherein one part of the titanium gypsum with a pH value reaching 9 or higher than 9 is manufactured into brick-shaped blocks by using a brick machine, and the other part of the titanium gypsum is manufactured into balls by using a disc granulator; 3, thematerial is roasted by using a brick firing kiln or a rotary kiln, wherein a sintering temperature of the material reaches 760-860 DEG C. The method is advantaged in that: when the material is used independently as a cement coagulant or used in combination with dihydrate gypsum as a cement coagulant, the hydration strength of the cement can be improved, and the setting time of the cement can be appropriately shortened. At the respect of cement setting time shortening and strength improving, in terms of a blending ratio of the treated titanium gypsum and dihydrate gypsum, the higher the proportion of the treated titanium gypsum, the higher the improving extent of the strength, and the higher the shortening extent of the setting time. No secondary pollution is caused during a production procedure.

The invention belongs to the field of organic synthesis and discloses a method for catalyzing the etherification of benzyl alcohol compounds. The benzyl alcohol compounds are mixed with an alcohol compound A, and a solvent and tripentafluorophenylborane serving as a catalyst are added for a reaction at 60-120 DEG C for 4-6 hours to obtain benzyl alcohol etherified products; the alcohol compound Ais shown in the description, and R3 and R4 are aryl groups or alkyl groups or hydrogen atoms. In the reaction, tripentafluorophenylborane is utilized as the catalyst to achieve a dehydration etherification reaction for a series of benzyl alcohols, different alcohols can be subjected to mutually cross coupling to obtain ethers in the reaction, the same type of alcohol compounds can also be dehydrated by themselves to obtain ethers, and a stable and fast route is provided for synthesis of ether compounds. According to the method, the operation is simple, the reaction is highly efficient, and noother pollution is caused.

The invention provides a device and method for preventing blockage of a spray gun coke oven gas pipe of a blast furnace. An ultrasonic generator is connected with three ultrasonic probes loaded with ultrasonic transducers through a signal transmission line, and the ultrasonic probes extend into a gas pipe from the bottom of the spray gun coke oven gas pipe respectively. The ultrasonic probes are inserted into the spray gun coke oven gas pipe; the ultrasonic generator sends out a high-frequency signal, and the high-frequency signal is converted into ultrasonic waves through the ultrasonic transducers; the probes are in contact with the attachment liquid on the inner wall of a spray gun pipeline to perform ultrasonic irradiation so as to generate an ultrasonic cavitation effect and an ultrasonic calorifics effect; the ultrasonic generator is started once at an interval of certain time and runs for 10-15 minutes after each start. By adopting the device and method provided by the invention, organic matters in the pipe wall attachments can be degraded to volatilize some organic matters, thus the deposition of toxic and harmful organic substances in the pipeline is reduced, the blockage of the spray gun coke oven gas pipe is effectively prevented, and the discharge of industrial pollutants is reduced.

The invention provides a method for preparing battery-grade nickel sulfate by deeply removing sodium from refined nickel salt, which comprises the following steps: dissolving refined sodium-containingnickel salt, adding an ammonium sulfate solution, and carrying out freezing crystallization to obtain ammonium nickel sulfate crystals and a crystallization mother solution; respectively carrying outdifferent treatments on ammonium nickel sulfate crystals, washing the ammonium nickel sulfate crystals by using an ammonium sulfate solution, calcining and decomposing to form nickel sulfate, mixingand dissolving the nickel sulfate, water and an acid solution, and carrying out freeze drying to obtain the battery-grade nickel sulfate. According to the method, sodium can be effectively removed from the nickel salt, the recovery rate of nickel is high, and the obtained product is battery-grade nickel sulfate.

The invention provides a method for preparing MgO nanometer granular materials, belonging to the technical field of granular material preparation. The method is characterized in that under a non-vacuum condition, MgO nanometer granules are prepared by adopting methods of arc discharge and pure magnesium anode self-consumption in a liquid nitrogen medium, wherein the end face of a cathode is provided with an inner hole; an anode is arranged in the inner hole of the end part of the cathode for starting arc and discharging electricity, so as to gasify a magnesium rod to obtain magnesium atoms; moreover, the MgO nanometer granules are synthesized by utilizing a gaseous magnesium environment formed in the inner hole of the cathode after the anode is placed in the liquid nitrogen solution and by utilizing a low-temperature environment provided by liquid nitrogen. The method has the advantages of simple equipment and controllable technological parameters. As raw materials needed in the preparation are industrial pure magnesium rods, the method is rich in the raw materials and low in cost. A MgO nanometer granule prepared is in a spherical body, a spherical-like body, a cubic body or a cubic-like body, and causes no other pollution.

The invention relates to a phase demodulating method and a device for identification of petroleum hydrocarbon pollutants. A controller outputs a control signal to a light source module in the device.A light source output by the light source module is irradiated into a sample cell in an acquisition module. A signal acquisition module collects lights stimulated by a measured sample and transmits the lights to a data conversion module which is in bi-directional connection with the controller. The phase demodulating method for the identification of the petroleum hydrocarbon pollutants includes: based on the principle of the fluorescence lifetime detection, time response characteristics of different petroleum hydrocarbon pollutants are established; according to the time response characteristics of the different petroleum hydrocarbon pollutants, oil products are identified by a double-channel light source and a double-channel detection. The phase demodulating method and device for the identification of the petroleum hydrocarbon pollutants has the advantages that through adopting an optical measurement method to identify the petroleum hydrocarbon pollutants, the identification speed is fast and no other pollution is produced; through adopting the double-channel light source structure, stable and sufficient light sources are produced, which is the premise of stable operation and accurate measurement of the device. The signal transmission between the channels is isolated and independent, thereby having extremely high measurement accuracy.

The invention discloses a VOCs waste gas green treatment process capable of reducing carbon emission, which comprises the following steps: carrying out active dynamic membrane absorption treatment, circulating aqueous solution demolding treatment, biological carbon sequestration treatment, sludge treatment and the like on industrial VOCs waste gas to realize biological carbon sequestration in most of VOCs and reduce carbon dioxide emission, and has the advantages of low hazardous waste generation amount, high treatment efficiency, low energy consumption, environmental protection and the like. The hazardous waste treatment cost is low; the VOCs treatment system is low in energy consumption, low in operation cost, stable in operation effect and capable of stably achieving ultralow-concentration emission for a long time.

The invention provides an automatic treatment device for steel nail line discharging. The automatic treatment device comprises a machine body internally provided with a cleaning mechanism, a drying mechanism and a material collecting mechanism. The cleaning mechanism is located above the drying mechanism and communicates with the drying mechanism through a drying channel. The material collecting mechanism is located below the drying mechanism. The machine body is provided with a feeding port, a water outlet and a discharging port, the feeding port and the water outlet are connected with the cleaning mechanism and located on the two sides of the cleaning mechanism correspondingly, and the discharging port is located in one side of the material collecting mechanism. The automatic treatment device for steel nail line discharging is provided with the cleaning mechanism and the drying mechanism, steel nails can be dried after being cleaned, other pollution is avoided, and the steel nail cleanliness is improved.