37results about How to "Realize green processing" patented technology

The invention discloses a spiral bevel gear cutting machine tool and a gear cutting method. The gear cutting machine tool comprises a cutting tool system, a workpiece system, a machine tool body and a numerical control system, wherein the cutting tool system comprises an XZ working table, an X-axis lead screw, a Z-axis lead screw, a short shaft, a tool base revolving drum, a tool base, No.1 milling cutters, a milling cutter shaft, No.2 milling cutters, a gear shaft and a correcting wedge. The rotating centre line of the tool base revolving drum and the rotating centre line of the short shaft are collinear; the right end surface of the tool base revolving drum is fixedly connected with an annular flange plate at the left end of the tool base by the correcting wedge; the right end of the tool base is provided with the milling cutter shaft; the rotating centre line of the milling cutter shaft and the rotating centre line of the short shaft are intersectant; and both ends of the milling cutter shaft are provided with the No.1 milling cutters, the No.2 milling cutters or grinding wheels. The left end surface of the tool base is provided with a drive motor; the drive motor is meshed with a bevel gear on the milling cutter shaft by the gear shaft; and the rotating centre line of the output shaft of the drive motor and the rotating centre line of the milling cutter shaft are vertically intersectant. The invention also provides a method for processing helical bevel gears by utilizing the machine tool.

The invention relates to the field of recycling of organosilicon spent contact masses, particularly a method for recycling copper oxide and zinc oxide from an organosilicon spent contact mass, which comprises the following steps: 1) extracting a spent contact mass with an oxidizer-containing ammonia-ammonium salt mixed solution at 20-100 DEG C for 1-8 hours, separating to obtain a copper-ammonia zinc-ammonia complex solution and a solid, and washing and drying the solid to obtain silicon powder; 2) evaporating ammonia from the copper-ammonia zinc-ammonia complex solution at 40-100 DEG C for 1-10 hours to precipitate a copper compound precipitate, separating to obtain the precipitate and a zinc-containing mother solution, washing the precipitate, drying and roasting to obtain copper oxide powder; and 3) adding an ammonium salt into the zinc-containing mother solution obtained in the step 2), regulating the temperature to 20-80 DEG C and the pH value to 4-8 to obtain a basic zinc carbonate precipitate, separating, washing, drying and roasting to obtain zinc oxide powder. The yield and purity of the copper oxide obtained by treating the spent contact mass with an ammonia process are respectively higher than 95%.

The invention relates to a method for preparing a composite copper catalyst by recycling organic silicon waste contacts. The method comprises the following steps of: performing ammonia leaching on the organic silicon waste contacts, adding sulfite into the solution, and performing ammonia distilling reduction; acidizing for precipitating, aging at high temperature to obtain zinc-containing mother liquor and precipitates, and treating the precipitates to obtain cuprous oxide powder; alkalinizing the zinc-containing mother liquor for precipitating, and treating to obtain zinc oxide powder; oxidizing a part of cuprous oxide powder to obtain copper oxide powder, and reducing a part of cuprous oxide powder to obtain copper powder; and mixing the cuprous oxide powder, the zinc oxide powder, the copper oxide powder and the copper powder, and grinding to obtain the composite copper catalyst. According to the composite copper catalyst for synthesizing methyl chlorosilane, products obtained by recycling the waste contacts are used as raw materials, so that the production cost of the copper catalyst is saved greatly, the recycling of the copper catalyst in the industry of organic silicon is realized, and the method has the obvious economic and environment-friendly benefits.

The invention relates to the technical field of hard cutting machining, in particular to a nitrogen flow jetting type hard cutting machining device. According to the device and the method, a superhardcutter is adopted to perform cutting machining on a quenched workpiece, in the machining process, normal-temperature nitrogen separated by a nitrogen making machine from air passes from a nitrogen controller to a high-pressure nitrogen jet head to be jetted to the machining surface of the quenched workpiece at a high speed, on one hand, functions of strong-gas cleaning, lubricating and proper cooling are achieved through the gas medium, on the other hand, the nitrogen is used for isolating and protecting the surface of the workpiece against being oxidized, the machining surface is promoted toundergo friction chemical reaction with the nitrogen, a nitrogen-enriched layer which is beneficial to enhancing the surface quality is generated on the surface of the workpiece, and the method is awater-saving, material-saving and energy-saving green machining novel method without a cutting fluid required, with rough grinding replaced by lathe turning for machining the quenched workpiece.

The invention discloses a method for improving surface hardness of a TC4 titanium alloy and relates to a method for strengthening the surface of the TC4 titanium alloy by electrical spark, belonging to the technical field of nontraditional machining. Different solid powder materials are added in a near-dry working medium to implement the technology for strengthening the high surface hardness of the TC4 titanium alloy. The method for improving the surface hardness of the TC4 titanium alloy is implemented by the following steps: the TC4 titanium alloy is strengthened by a powder-mixture near-dry electrical spark surface-strengthening method; and the solid powder materials mixed in the working medium respectively are C powder, B4C powder, and a mixture of the C powder and the B4C powder. Experiment parameters in the process of strengthening the surface by powder-mixture near-dry electrical spark are that the pulse interval toff is equal to 150Mus, the pulse width ton is equal to 150Mus, the pulse current ie is equal to 14A, the interelectrode discharge voltage is 120V, the machining depth h is equal to 0.1mm and a tool electrode used is graphite. The technology has the advantages that a strengthened layer and a matrix are combined well, the surface mechanical property is improved remarkably, and the like. The TC4 titanium alloy with the surface being strengthened by the method is up to 1382HV in microhardness, which is increased by 300% compared with that of the original alloy.

The invention discloses a combine cleaning vehicle for leaves on lawns. The combine cleaning device comprises front wheels, rear wheels, handlebars, a frame, a main collecting device, a simulated stripping device, a driving device, a recycling and compressing device and a weeding device. The main collecting device comprises a big roller, a small roller, a main conveying belt, elastic rake teeth, front rake corner adjusting devices, rear rake corner adjusting devices and accelerating devices. The front rake corner adjusting devices comprise suspending rods, adjusting screw tubes and supporting rods. The rear rake corner adjusting devices comprise pawl turnplates, ratchet shifting shanks, rotating shafts, torsion springs, pawls and pawl fixing blocks. The simulated stripping device comprises a large cam, a stripping comb, first connecting rods, second connecting rods and rotating discs. According to the arrangement, the elastic rake teeth are high in adaptability to the lawns with different conditions; the simulated stripping device adopts a design simulating hand stripping movements; by the use of the recycling and compressing device, garbage including leaves is processed environmentally friendly, and wide-range application is available to the schools, the parks and the like.

The invention provides a plasma synergistic resistance furnace fly ash treatment system and a treatment method. Broken glass (or silicon dioxide powder) is melted by a plasma torch to form a mother solution, the power supply of the plasma torch is cut off, then an electrode power supply is started to be heated by utilizing an electrode, and then the fly ash and the broken glass and the lime are mixed according to a certain proportion (the silicon and calcium ratio is 2-3) and then are uniformly stirred, and then the fly ash and the broken glass and the lime are fed into a melting furnace to besubjected to glass stabilization through a material scattering machine. The organic matters such as dioxin in the fly ash are subjected to high-temperature decomposition, heavy metal cadmium, chromium, lead, copper and other heavy metals enter a grid structure formed by silicon oxygen to be cured and stabilized, and the heavy metal leaching concentration in the glass of the melting furnace is farlower than that of the leaching standard limit value in the GB5085.3-2007, and the fly ash are converted into glass bodies to be subjected to resource utilization after water quenching, the residualorganic matters in the fly ash treated by oxygen-free high-temperature decomposition to generate gas pollutants, and the gas pollutants are subjected to cooling, desulfurization and denitrification treatment, and then discharge is carried out after reaching the atmospheric pollutant emission standard of a GB9078 industrial kiln.

The invention discloses a method for preventing and controlling soil antibiotic resistance gene pollution; an agricultural enzyme is used as an impedance agent to be directly applied to polluted soil to be treated or applied to the soil to be treated after fertilizer is applied or applied to the soil to be treated after being evenly mixed with the fertilizer; the agricultural enzyme is a liquid fermentation product obtained by fermenting food wastes; and the polluted soil to be treated is soil polluted by antibiotic resistance genes taking actinomycetes as host bacteria. According to the method, proliferation and diffusion of antibiotic resistance genes in soil are reduced by means of inhibition of the agricultural enzyme on survival of microorganisms such as actinomycetes, namely selection of host microorganisms; and the method is an efficient, broad-spectrum, green, environment-friendly and low-price agricultural environment restoration technology.

The invention discloses a method for treating organic complex chromium wastewater and synchronously controlling generation of hexavalent chromium, and belongs to the field of wastewater treatment. The method comprises the following steps: adding a trivalent chromium-containing complexing simulation solution or wastewater with adjusted pH into a reaction container, inserting a prepared anode and cathode into a reaction solution, and switching on a power supply; continuously aerating a mixed gas of O2 and O3 into the reaction container through a microporous aeration head, and carrying out hydraulic stirring while aerating to ensure that the reaction is carried out uniformly; and after the reaction is carried out for 30-120 minutes, depositing/adsorbing chromium on the cathode and anode materials. While the organic complex chromium is efficiently cracked by utilizing H2O2 generated by the carbon-based material in cooperation with O3, the generation of hexavalent chromium is controlled through the combination of multiple actions such as electrogenerated H2O2 reduction, cathode electroreduction and anode electroadsorption, and finally the chromium is transferred to the electrode material in an electrodeposition or electroadsorption manner, so that the accumulation of Cr (VI) is greatly reduced, the generation of chromium sludge hazardous wastes is reduced, The treatment cost is greatly reduced, and green treatment of the organic complex chromium wastewater is realized.

The invention provides a moving bed device and process for dry flue gas desulfurization. The moving bed device comprises a desulfurizing agent feeding unit, the desulfurizing agent conveying unit is connected with the desulfurizing agent feeding unit so as to convey a desulfurizing agent; the desulfurizing tower is provided with a flue gas inlet, a flue gas outlet, a desulfurizing agent feeding port and a desulfurizing agent discharging port, a partition blind plate is arranged between the flue gas inlet and the flue gas outlet, and the desulfurizing agent feeding port is connected with the desulfurizing agent conveying unit. Efficient utilization of the desulfurizing agent is realized through recycling of the desulfurizing agent; no wastewater or solid waste is generated, the pressure drop, the temperature drop and the occupied area are small, the energy consumption is low, dust and white can be removed, and green treatment of SOx is realized; the operation process is simple and the investment and operation cost is low.

The invention relates to a garbage three-phase separation treatment process. The process effectively realizes the purpose of garbage separation, classification treatment and recycling facilitation. According to the technical scheme, the process comprises the following steps of 1 garbage crushing, 2 garbage sorting, 3 garbage slurry treating, 4 solid-liquid separation, and 5 waste gas treatment. Compared with an existing solid, liquid and gas three-phase separate treatment method, the process adopts a solid, liquid and gas synchronous treatment technology, a product after garbage treatment can be reused or recycled, the utilization efficiency of resources is improved, the green treatment of the garbage is realized, meanwhile, adopted equipment is commonly used equipment in the industry, the chemical industry and the like, the equipment is regular in operation and convenient to use, so that the method does not involve high-threshold technologies, so that the process does not involve excessively-high labor training cost, and the practicability is strong.

The invention provides a novel high-thermal-conductivity phase-change heat storing superhard abrasive grinding wheel. The abrasive grinding wheel comprises a grinding wheel base body, wherein an annular pipe cavity is arranged in the position, close to the outer end, of the grinding wheel base body, annular foam metal fills the annular pipe cavity, and a gas-liquid phase-change heat transfer working medium is further arranged in the annular pipe cavity. An assembling gap is arranged between the foam metal and the inner side of annular tube cavity, metal filling blocks fill the assembling gap,and copper foil/graphite composite sheets are attached to the two side walls of the annular pipe cavity. The novel high-thermal-conductivity phase-change heat storing superhard abrasive grinding wheelhas the advantages that the heat conducting capability is high, the heat transfer performance is hardly influenced by the action of centrifugal force, and the grinding temperature can be effectivelycontrolled by using a small amount of cooling liquid.

The invention belongs to the field of environmental protection, and discloses a comprehensive treatment and reutilization method of industrial inorganic waste salt containing organic pollutants, whichcomprises the following steps of: dissolving, layering and separating the industrial waste salt to obtain an oil phase and a waste salt solution; enabling the waste salt solution to enter an adsorption unit for adsorption treatment, adsorbing organic matters by an adsorbent, and purifying to obtain an industrial salt solution; enabling the saturated adsorbent to enter a microwave regeneration device, performing microwave pyrolysis regeneration in a nitrogen atmosphere, enabling generated gas containing organic matters and an oil phase obtained by liquid separation to enter an oxygen crackingdevice, and performing catalytic oxidative cracking treatment in an air atmosphere under the action of a catalyst to realize deep purification. According to the method, various sodium chloride industrial waste salts can be systematically and efficiently treated, the TOC removal rate reaches 98% or above, and the final recovery rate of sodium chloride reaches 99%. By adopting the method to treat the industrial waste salt, purification treatment and resource reutilization of the waste salt can be realized, and the method has very high social and economic benefits.

The invention discloses an engine low-pressure turbine case coating grinding and finishing device and method, and belongs to the technical field of engines, the engine low-pressure turbine case coating grinding and finishing device comprises a device body, a control device is fixedly installed on one side of the device body, and a dust removal device is fixedly installed on the other side of the device body; the top of one side of the device body is fixedly connected with an accompanying measuring device. According to the method, deformation data of the reference A of the inner ring of the casing coating is obtained in a non-contact measurement mode, data point cloud reflecting real deformation is obtained by processing the deformation data, a machining geometric curve is obtained through NURBS curve fitting, and then a coating grinding tool path driven by machining geometric characteristics is achieved through UG/CAM secondary development. NC codes are generated through post-processing to drive the device body to complete follow-up grinding and finishing of the casing coating, the finishing efficiency and finishing precision of the coating are improved, and meanwhile the cost and the labor intensity of workers are reduced.

The invention discloses a pig farm waste recycling treatment method. The method comprises the following steps: step 1, drying dehydrated pig manure produced in a pig farm, and performing pyrolysis treatment at 300 DEG C to prepare dehydrated pig manure biochar; step 2, applying the dehydrated pig manure biochar to an anaerobic fermentation system of swine wastewater for anaerobic fermentation treatment; 3, evaluating the promotion effect of the addition of the dehydrated pig manure biochar on the fermentation efficiency of the pig manure wastewater by monitoring the soluble COD, the volatile fatty acid concentration and the biogas yield in the anaerobic fermentation process; the abundance of the resistance genes contained in the dehydrated pig manure before and after pyrolysis treatment is measured, and the reduction effect of the charcoal prepared through pyrolysis on the resistance genes in the dehydrated pig manure is evaluated; by comparing the abundance of the resistance genes in the swine wastewater fermentation liquor before and after the addition of the dehydrated pig manure biochar, the reduction effect of the addition of the dehydrated pig manure biochar on the swine wastewater fermentation resistance genes is evaluated. The method realizes green treatment of two kinds of pig farm wastes.

The invention discloses a low-temperature gas-phase multi-element strengthening method preset with a three-stage process. The low-temperature gas-phase multi-element strengthening method preset with the three-stage process comprises the following steps: (1) performing sand blasting or pickling on a to-be-treated workpiece, and putting the to-be-treated workpiece subjected to sand blasting or pickling into a clamp; (2) putting the clamp into a heating furnace for heat treatment: (21) increasing a temperature in the heating furnace to 350 DEG C, preserving the heat for 20-30 minutes, warming, and introducing ammonia gas into the heating furnace; (22) when the temperature is increased to 500-560 DEG C, introducing ammonia gas and a permeating agent A into the heating furnace, preserving the heat for 1-3 hours and continuously warming; (23) when the temperature is increased to 570-670 DEG C, introducing the ammonia gas and the permeating agent A into the heating furnace again, preserving the heat for 0.5-1.5 hours, and cooling; and (24) when the temperature is reduced to 500-520 DEG C, introducing ammonia gas and a permeating agent B into the heating furnace, preserving the heat for 1-3 hours, and then, cooling and discharging. The low-temperature gas-phase multi-element strengthening method preset with the three-stage process solves the problem that temperature range is relatively narrow, and can carry out alpha-Fe high-temperature-section surface modifying and strengthening treatment at a temperature being 500-670 DEG C.

The invention provides a preparation method of a tea-based photo-thermal seawater desalination film and the photo-thermal seawater desalination film prepared by the method. The method comprises the following steps: (1) drying tea, and grinding into tea powder; (2) dispersing the tea powder into a solvent to obtain a dispersion liquid; and (3) carrying out vacuum filtration on the dispersion liquid to a filter membrane to obtain the photo-thermal seawater desalination membrane. According to the method provided by the invention, the raw materials are cheap and easy to obtain, the membrane preparation operation is simple and convenient, and the prepared membrane material can be recycled for multiple times and has industrial practicability.

The invention discloses dyeing enzyme for improving pilling resistance of a polyester-cotton knitted fabric, and belongs to the technical field of textile dyeing. The dyeing enzyme comprises, by weight, 5-15 parts of heat-resistant weak-acidic pectinase, 5-15 parts of cutinase, 5-25 parts of wide pH (potential of hydrogen) cellulose, 1-5 parts of C21 monocyclic binary acid salt, 10-30 parts of biomass polyoxy alkyl ether, 1-5 parts of N-alkyl phthalimide and 40-70 parts of water. According to the dyeing enzyme for improving pilling resistance of the polyester-cotton knitted fabric, refining and oil removing, polishing and polyester dyeing can be completed once, energy, water and time are saved, emission is reduced, energy conservation and emission reduction requirements of green printing and dyeing are met, COD (chemical oxygen demand) content of waste water can be reduced, and a product and a printing and dyeing process are innovated.

The invention provides a chamfering machine cutter which comprises a cutter handle and a plurality of cutter grains used for cutting workpieces. One end of the cutter handle is connected with the output end of a motor, the other end of the cutter handle is provided with an assembling groove used for assembling the cutter grains, and the cutter grains are detachably arranged in the assembling groove; due to the split type design, a user can conveniently replace the cutter grains; and in addition, the assembling groove can be provided with turning tool grains, rough boring tool grains, rough tool grains, C angle tool grains, R angle tool grains and finish milling tool grains, and the chamfering machine cutter has the advantages that customers can select more targeted and suitable tool grains according to the requirements of machined parts, meanwhile, waste tool grains used on a machine tool can be used as the tool grains, green machining is achieved, and the consumable cost is saved. A customer can select a rolling bearing of phi 7/phi 9/phi 13/phi 15/phi 17/phi 19/phi 24 according to the diameter of a round hole of a machined part.