67results about How to "Suitable for large-scale processing" patented technology

The invention provides a recovery method for a waste ferric trichloride etching liquid. The method adopts integrated membrane electrolysis and extraction technology and comprises the following steps: providing an electrolytic tank, wherein an ion exchange membrane is arranged in the electrolytic tank to divide the electrolytic tank into an anode chamber and a cathode chamber, and a cathode and an anode are respectively positioned in the cathode chamber and the anode chamber located at two sides of the ion exchange membrane; adding the waste ferric trichloride etching liquid into the cathode chamber and carrying out membrane electrolysis so as to reduce Fe3+ ions into Fe2+ ions; carrying out extraction on a solution obtained after electrolysis in the cathode chamber to remove impurity metals so as to obtain an extract phase solution and a metal impurity-removed phase solution and delivering the metal impurity-removed phase solution to the anode chamber for membrane electrolysis so as to oxidize Fe2+ ions into Fe3+ ions; and recovering a solution obtained after electrolysis in the anode chamber. Compared with conventional processing technology for the waste ferric trichloride etching liquid, the recovery method provided by the invention has the advantages of short and simple process flow, no generation of secondary pollution, no discharge of waste gas, waste water and industrial residue, low production cost, applicability to large-scale treatment, treating capacity of more than ten thousands every year and good environmental and economic benefits.

The invention provides a method for exothermic catalytic reaction under increased pressure and a reactor thereof. The method and the reactor are characterized in that: a round pressure vessel (7) with a catalytic bed (4) is used; a gas inlet (1) is positioned on an end cover of the vessel (7) and connected with an internal distribution drum (5) to form a shunt passage (2) for reacting gases; a gas outlet (11) is communicated with a space that is formed between the wall of the vessel (7) and an external distribution drum (6), to form a concentration passage (3) for the reacting gases, the catalytic bed (4) is defined between the external distribution drum (6) and the internal distribution drum (5) and is filled with catalysts; the reacting gases flow axially in a centrifugal manner from the internal distribution drum (5) to the external distribution drum (6). The method and the reactor have the advantages of axial and uniform distribution of the reaction gases, optimum distribution of bed temperature, high utilization rate of catalysts, and low pressure drop of fluids passing through the reactor. The invention is suitable for catalytic reactions in methanol, ammonia and dimethyl ether synthesis, as well as other exothermic gas-solid catalytic reactions under increased pressure.

The invention relates to a method for extracting valuable metals from waste lithium ion battery materials. The method comprises the following steps of (1) mixing the waste lithium ion battery materials with a leaching agent to obtain a mixed material, heating and pressurizing the mixed material, and carrying out solid-liquid separation to obtain a leachate and primary solid slag; and (2) adjustingthe pH value of the leachate prepared in step (1) to obtain secondary solid slag and a lithium-containing purification solution. According to the method, the lithium in the waste lithium ion batterycan enter the solution selectively, other metal components are mainly formed in the reacted liquid in the form of solid slag. After the leachate is subjected to deep impurity removal and solid-liquidseparation, the obtained lithium-rich filtrate is used for preparing a lithium product, the solid slag obtained in the two steps further recovers the valuable metals in the product through other methods. The method is very good for the selective extraction effect of lithium, meanwhile, the method has the advantages of being low in acid consumption, no other additives, environmental friendliness and high in economic benefit.

The present application discloses a manufacturing method of a memory cell including a resistor, comprising the following steps: a) forming a bottom electrode layer on an insulating substrate; b) forming a resistive material layer on the bottom electrode layer by MOCVD; c) forming a resistive material layer on the bottom electrode layer; forming a top electrode layer on the resistive material; and d) patterning the top electrode layer and the resistive material layer to form separated memory cells. The MOCVD method can be used to manufacture a resistive material layer with precise controllable thickness and composition and good uniformity, so that a memory cell of an RRAM with an MOM structure and excellent interface characteristics can be obtained.

The invention discloses a method for removing heavy metals cadmium, lead and copper in water with Fred's salt. When the content of heavy metals Cd2+, Pb2+ and Cu2+ in water is on the order of mg/L, 20% of Fred's salt is taken The emulsion is added into the water body at a solid-liquid ratio of 1:10000 to 8:10000, and a mixed liquid is obtained after hydraulic stirring, and the mixed liquid is passed through an advection settling tank or an expansion upflow settling tank to collect heavy metal-containing sediments, and Collect clean water by way of water discharge along the way. The invention not only has the advantages of good water treatment effect, simple process and low cost, but also has the advantages of no secondary pollution, suitable for large-scale treatment of heavy metal-containing wastewater, and the like.

The invention belongs to the technical field of brown sugar processing, and particularly relates to brown sugar processing equipment. The brown sugar processing equipment comprises a pulverizer, a conveying device and a cooling device, wherein the pulverizer is arranged on the back end of the conveying device, and a high-pressure tank of the cooling device is located on one side of the pulverizer.After the brown sugar processing equipment is operated for a long time, the temperature of cutters can be prevented from being increased, and brown sugar powder cannot be melted into blocks; and additionally, moisture in the brown sugar powder is condensed into ice crystals before processing, the brown sugar powder cannot be caked due to cooling of the cooling device, the crushing speed and the crushing quality are increased, and the influence on the processing efficiency is reduced. The invention further provides a use method of the equipment. The use method comprises the steps of preprocessing brown sugar blocks, cooling the brown sugar blocks, cooling the interiors of the cutters, and crushing the brown sugar blocks. According to the use method, the crushing operation can be performedwhen the water content of brown sugar is lower than 7%, the processing range is large, dehydration treatment is not needed, and the cost is reduced; and additionally, the use method has the advantagesof high degree of mechanization and high processing efficiency and processing quality and is suitable for large-scale processing.

The invention discloses a treatment method for a contact end of a surface of an oriented carbon nano tube-modified carbon fiber on the basis of gas-phase carbon nano tube dispersion mist. The method includes the steps of: 1) uniformly mixing carbon nano tubes, a sizing agent and a diluting agent to form a semi-fluid; 2) dispersing the mixture to form gas-phase carbon nano tube mist with pulsed arc; 3) moving a carbon fiber close to a discharge point of the arc; 4) forming relative constant-speed movement between the discharge point of the pulsed arc and the carbon fiber; 5) baking the carbon fiber in a baking oven; and 6) after the carbon fiber is baked, cooling the carbon fiber to room temperature to finish the treatment for the contact end of the surface of the oriented carbon nano tube-modified carbon fiber.

The invention relates to the technical field of wastewater treatment, in particular to a desulfurated wastewater treatment method and device. The treatment method utilizes sodium sulfate and lime milkto remove hard matter, and the operation cost is reduced. The features of different nano filter membranes are utilized to conduct retention on various kinds of ions step by step, not only is separation of materials ensured, but also the safe stability of the system is guaranteed, the scaling risk in the nano filtration process is avoided, and a sodium chloride salt solution with the high purity is finally obtained on the water producing side; meanwhile, the reasonable backflowing process is conducted, the cyclic stable operation and the integral high recycling rate of the system are ensured;and low energy consumption is achieved while tap water is highly concentrated by using a combined technology of reverse osmosis concentration and electroosmosis concentration, and the reverse osmosisfresh water generated by the combined membrane system can be reused for production. The treatment device of desulfurated wastewater is reasonable in treatment unit configuration, operates stably, is high in automation degree, and is suitable for scale treatment of desulfurated wastewater.

The invention discloses an antioxidant conductive copper nanowire film, and a preparation method and application thereof. The preparation method comprises the following steps of: uniformly dispersingcopper nanowires in an organic solvent or an aqueous solution to prepare a copper nanowire film, and carrying out reduction treatment on the copper nanowire film, dissolving 2-methyl phenylimidazole or benzimidazole in a formic acid-copper formate water buffer solution, and adjusting the pH value until the 2-methyl phenylimidazole or benzimidazole is just completely dissolved to obtain an antioxidant solution, and immersing the copper nanowire film subjected to reduction treatment into a prepared antioxidant solution, carrying out antioxidant treatment, and blow-drying after treatment to obtain the antioxidant conductive copper nanowire film. The prepared antioxidant nanowire film does not influence the conductivity of the copper nanowire film, also does not influence the transparency of the copper nanowire film, has a very good antioxidant effect, solves the key problem of unstable conductivity of the copper nanowire film, and the possibility that the copper nanowire film replaces ITOto be applied to the field of transparent flexible electrodes is achieved.

The invention discloses a straw/aluminium polychlorid composite water treatment material and a preparation method thereof. The method comprises the following steps: by adopting a liquid phase method,taking coal ash as a raw material to prepare aluminium chloride powder, mixing the aluminium chloride powder and rice straw to prepare a composite material with good water treatment effect. The composite material is prepared by taking industrial waste coal ash and agricultural waste straw as raw materials at normal temperature and under normal pressure, so that the price is cheap; the composite material has good flocculating performance, and good processing capacity for the waste water, the advantage of aluminium salt polymer in water treatment process is played, the residual amount of aluminium ions after processing the aluminium salt polymer is reduced, the negative effect caused by the entering of the aluminium ions to water environment can be maximumly improved, the problem of the toohigh concentration of aluminium ions in water processed by a traditional aluminium salt flocculant is solved, the harm to human health is effectively avoided and the material is suitable for processing the waste water in a large scale.

The invention discloses a guitar panel grinding machine. Including the workbench, the workbench table is equipped with a transmission device, the transmission device is connected to the speaker positioning device, a pillar is connected to each side of the workbench, the two pillars are connected by a fixed rod, and two connecting rods are connected to the fixed rod. The connecting rods are all connected to the grinding device, and the grinding device is located directly above the speaker positioning device; the grinding device includes a double-headed motor, and two transmission shafts are arranged on the double-headed motor, and each of the two transmission shafts is connected to a connecting rod. There is a driving gear, the driving gear is connected to the chain, the chain is connected to the driven gear, and the two driven gears share the driven shaft, and each end of the driven shaft is connected to a connecting rod. Between the driven gears, a grinding belt is set on the roller. The invention has the advantages of fast processing speed, manpower saving, uniform quality of processed guitars and suitable for large-scale processing.

The invention discloses a high-speed sludge treating system, comprising a sludge pool, a sludge delivery pump, a sludge stirring tank, a sludge filter press and a filtrate pool, wherein the sludge delivery pump is arranged in the sludge pool and used for delivering sludge to the sludge stirring tank via a pipeline, the sludge stirring tank is connected with the sludge filter press via a sludge input, and the sludge filter press is provided with a filtrate outlet used for delivering filtrate to the filtrate pool and with a sludge cake outlet used for discharging a sludge cake. The high-speed sludge treating system is reasonable in structural design and convenient to use, can continuously and highly efficiently carry out sludge treatment and is applicable to a large water plant or sludge treatment unit.

The invention belongs to the technical field of biological active carbon, and particularly relates to biological active carbon with banyan leaves as a carbon source carrier based on culture of high-sugar wastewater. The porous surface-defect-rich carbon carrier with the banyan leaves as a carbon source is placed in a culture medium, mixed strains are inoculated into the high-sugar wastewater in two steps, and through vibration and co-culture, the biological active carbon is prepared. Through culture in two steps, oligosaccharides or cellulose in the high-sugar wastewater are/or subjected to enzymolysis into low-molecular saccharides advantageously by the microbial strains added in the early stage, and produced mesostate can serve as the carbon source for growth and reproduction of the microbial strains added in the later period. Organic matter and pollutants adsorbed by the carrier carbon are efficiently utilized and synergistically degraded by microorganisms, and therefore a water purifying agent has the double purifying effects of carbon physical adsorption and bio-enzyme degradation, and is hydrophilic but easy to precipitate, and very suitable for scale treatment of the high-sugar wastewater.

The invention relates to a preparation method of a hericium erinaceus and highland barley shortbread, and belongs to the field of food processing. According to the method, a dried hericium erinaceus product and cleaned, washed and dried highland barley powder are pulverized and sieved, squeezed and puffed at 150-170 DEG C, and then ultra-finely pulverized; 300-400 parts of pre-gelatinized powder of the hericium erinaceus, 200-300 parts of wheat flour, 200-300 parts of butter, 180-200 parts of sugar powder, 60-80 parts of eggs, 4-6 parts of soda, 7-9 parts of ammonium hydrogen carbonate and 2-3parts of sesames are added by weight; the hericium erinaceus and highland barley shortbread is obtained through the steps of sugar and oil wipping, dough stirring, dividing and shaping, baking and cooling. The hericium erinaceus and highland barley shortbread prepared by the method has good taste, is very nutritious, is suitable for a wide range of people, is easy to digest, and has a certain effect in protecting the gastrointestinal function.

The invention discloses an organic fertilizer stack type fermentation method taking mushroom dregs as a substrate. The method comprises the following steps: s1, preparing a fermentation microbial inoculum; s2, treating a fermentation substrate; s3, mixing the fermentation raw materials; s4, fermenting the raw materials: fermenting the fermentation raw materials, specifically, conveying the fermentation raw materials into a windrow type fermentation tank through conveying equipment to form compost, monitoring the compost temperature in the fermentation period, and turning the compost pile oncewhen the fermentation temperature is higher than 65 DEG C; when the fermentation temperature is always lower than 65 DEG C, turning the compost pile once every 5-6 days; when the fermentation temperature is reduced to 30 DEG C, ending the fermentation and preparing an organic fertilizer; s5, subsequent processing; s6, drying; and s7, packaging. According to the present invention, the raw materialscan be crushed and effectively mixed so as to uniformly distribute the fermentation substrate and the fermentation microbial inoculum, such that the fermentation effect is significantly improved, thewaste of the bacterial residue can be avoided, the nutrients in the bacterial residue can be effectively utilized, the quality of the organic fertilizer is significantly improved, the operation is simple, and the method is suitable for large-scale processing.

The invention discloses a processing technology of dried bamboo shoots, belonging to the technical field of food processing. The processing technology comprises the five specific steps of husking, poaching and carrying out fixation, cutting bamboo shoot flesh, spreading and airing, and drying. The problems that the baking time in the dried bamboo shoot treatment process is too long, furthermore, dried bamboo shoots can be easily hard and are not crisp, or, the dried bamboo shoots are red and black, appearance and flavor are influenced, and furthermore, the dried bamboo shoots go bad and cannot be eaten can be effectively solved. The processing technology of the dried bamboo shoots disclosed by the invention has the benefits that the color, the smell and the taste of the dried bamboo shoots are slightly different from fresh bamboo shoots; the dried bamboo shoots are crisp in texture and cannot go bad; furthermore, the process is simple and easy to operate; because of being cut, the bamboo shoots are heated uniformly; therefore, the baking time is greatly shortened; the baking time is only 20-24h; any additive is added in the production process; the processing technology accords with healthy food requirements; and therefore, the processing technology is not only applied to production of family workshops but also can be applied to large-scale processing of factories.