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44results about How to "The process method is reasonable" patented technology

Paddy rice producing production technology for removing pesticide residue

The invention provides a paddy rice producing production technology for removing pesticide residue, and relates to the technical field of the processing and the producing of food, wherein the production technology comprises the following steps of: cleaning paddy, separating hull grains from hulled materials, removing the pesticide residue by means of coarseness humidifying, milling rice, removing the pesticide residue in a polishing way, and removing the pesticide residue by ultrasonic wave. The paddy rice producing production technology for removing the pesticide residue provided by the invention combines with the production of paddy rice producing, mainly aims at solving the problem that the paddy contains the pesticide residue, is scientific in technological process design, reasonable in technical method, and low in production cost, effectively and reliably removes the pesticide residue, can subsidiarily kill the toadstool in the paddy, can produce the paddy clearly, guarantees the quality safety of paddy-processed products, is free from secondary pollution of rice products in the process of processing and producing, can not change the original quality, nutrition and special flavor of the paddy, is particularly suitable for preparing the products which are higher in nutrition value and economic value such as germ-remaining rice, the clean rice and the like besides the common rice, and is further good for reducing the pesticide residue of byproducts prepared by comprehensive utilization.
Owner:DANYANG JIAHE RICE

Turning method of long thin wall composite shell body formed by metal and glass fiber reinforced plastics

The invention discloses a turning method of a long thin wall composite shell body formed by metal and glass fiber reinforced plastics. The method comprises the steps that (1) glass fiber reinforced plastics outer circle rough turning is carried out; (2) the two end faces of the shell body are subjected to rough turning; (3) glass fiber reinforced plastics outer circle fine turning is carried out; and (4) the two end faces of the shell body, an inner hole and an annular groove are subjected to fine turning. Rough-fine machining processes are used, technology allowance is distributed reasonably, deforming amount is controlled, metal shell inner hole accuracy is controlled and is used as the machining standard of a structure piece after recombination, an end cap and a soft claw are used for clamping, clamping deforming is lowered, through a low-temperature cold air cooling mode, a cutting environment is improved, a tool and cutting parameters during cutting machining are stipulated, product tool service life is prolonged, and machining efficiency is improved. The technology method is reasonable and reliable, product deforming is small, and the machining quality of the composite shell body can be effectively guaranteed.
Owner:HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL

Processing technology for corrosion-resistant stainless steel seamless steel tube

ActiveCN107639129AShort pickling timeGood pickling effectSteel tubeCorrosion resistant
The invention relates to a processing technology for a steel tube, particularly relates to a processing technology for a corrosion-resistant stainless steel seamless steel tube, and belongs to the technical field of tube processing. The processing technology for the corrosion-resistant stainless steel seamless steel tube comprises the following steps: (1) tube blank smelting, (2) tube blank forging, (3) machining of a pierced billet, and (4) steel tube deforming. A tube blank is subjected to repeated chambering and cold rolling treatment, and is processed by a multi-pass small deformation; andaccording to the final cold drawing procedure, processing of the seamless steel tube is finished by cold drawing, oil removal, annealing, straightening, fixed cutting, acid pickling and inspection toobtain the product. In a cold rolling process, the processing deformation of the seamless steel tube does not exceed 55%; in a chamfering process, the processing deformation of the seamless steel tube does not exceed 10%; in a cold drawing process, the processing deformation of the seamless steel tube does not exceed 15%; and an annealing process in the chamfering, cold rolling and cold drawing processes meets the conditions of solution annealing at the temperature of 1,052-1,093 DEG C and rapid cooling or water cooling.
Owner:BAOFENG STEEL GRP

Lithium ion battery negative electrode material and preparation method thereof

The invention provides a lithium ion battery negative electrode material and a preparation method thereof. The preparation method comprises the following steps: mixing coal tar pitch with a solvent which is a mixed solvent consisting of kerosene, absorber oil or anthracene oil in a certain proportion, conducting stirring at a certain temperature and pressure, and conducting standing and settling to obtain a coal tar pitch quinoline insoluble substance; mixing the coal tar pitch quinoline insoluble substances with a quinoline solution, performing centrifugal separation, and collecting solids; sequentially washing the solid with a quinoline solution and a toluene solution which are heated to 70 DEG C, and conducting drying; mixing the dried solid with KOH according to a certain proportion, conducting grinding, and conducting activating in a furnace under the protection of inert gas; and washing the activated product with an acid solution and water until the product is neutral, and conducting drying to obtain the lithium ion battery negative electrode material. The preparation method has the advantages of environmental friendliness, no pollution, simplicity in operation, low raw material price and excellent property of the battery negative electrode material.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Efficient synergistic resource utilization method for livestock and poultry manure and silage straw

The invention discloses an efficient synergistic resource utilization method for livestock and poultry manure and silage straw. The livestock and poultry manure and the silage straw are blended into a mixed material in an adjusting tank (5); the mixed material enters an anaerobic fermentation tank (7), the anaerobic fermentation tank (7) is a torpedo type anaerobic reactor, and partition plates (17) are arranged in a cylinder body at intervals; a rotary spraying stirrer (16) is mounted between every two adjacent partition plates (17) on one side of the lower part of the cylinder body; every two partition plates (17) form a material reaction bin, and after the material enters the anaerobic fermentation tank (7), the rotary spraying stirrer (16) and an air blower (9) are started to carry out gas-liquid stirring on the material; after discharged slurry passes through a solid-liquid separator (10), biogas residues are subjected to aerobic composting to prepare organic fertilizer, and part of biogas slurry is treated and then returned to the field for utilization; and the other part of biogas slurry flows back to the adjusting tank (5) and a fermentation storage bin (3). According to the efficient synergistic resource utilization method for the livestock and poultry manure and the silage straw, through efficient cooperative treatment of feces and crops, and the gas production rate of biogas is increased.
Owner:中钢集团天澄环保科技股份有限公司

Method and device for preventing oxidation in synthesis of anode material of lithium-ion battery

The invention discloses a method and a device for preventing oxidation in synthesis of an anode material of a lithium-ion battery. The method comprises the following steps of: filling raw materials needed for synthesizing the anode material of the lithium-ion battery in a bottom part of a reactor, wherein the region is called a material loading region; filling a reducing agent or an inert material which does not participate in chemical reactions at a high temperature in a region above the material loading region, wherein the region is called an isolation region; placing the filled reactor into an electric furnace for sintering at a high temperature; and maintaining an oxygen content of 0.5 to 30 percent of the air in the reaction region in the electric furnace; and thus obtaining the needed anode material of a lithium-ion battery. The process is technical method, convenient in operation and reasonable in structure, can effectively reduce the production cost for synthesizing the anode material of the lithium-ion battery, greatly decreases requirements on the equipment and the purity of protective atmosphere, and can realize massive production and replace the prior synthesizing process of the anode material of the lithium-ion battery.
Owner:CENT SOUTH UNIV +1

A device and method for flue gas denitrification using a microbial fuel cell combined with a microbial electrolytic cell

The invention discloses a device and method for flue gas denitrification using a microbial fuel cell combined with a microbial electrolytic cell. The cathode of the MFC is connected to the anode of the MEC through a wire, the anode of the MFC is connected to the cathode of the MEC through a wire, and the anode chamber of the MFC and the MEC and The cathode chambers are separated by a proton exchange membrane; the bottom of the MFC cathode is provided with a flue gas inlet and a nutrient solution outlet, and the top of the MFC cathode is provided with a flue gas outlet and a nutrient solution inlet. The cathode chamber of the MFC and the cathode chamber of the MEC are There is a nutrient solution circulation loop between them; the electrons generated by the MFC are used as a power source to act on the MEC, and under the double strengthening of the MEC and the MFC, the flue gas denitrification is realized. The invention has low cost and low energy consumption, and the NOx in the flue gas is transferred to the liquid phase through the chemical absorbent, and the pollutants are removed and the absorbent is activated through the MFC-MEC joint technology, so that the high-efficiency and greenness of the medium-temperature flue gas can be realized Denitrification.
Owner:SOUTH CHINA UNIV OF TECH

Production method of red mud filler

The invention discloses a production method of red mud filler. The method includes the steps of: (1) wet levigation: sending a coarse red mud slurry from a red mud grading process into a grinding machine, conducting wet levigation to obtain a fine red mud slurry; (2) dehydration: bringing the fine red mud slurry into plate-and-frame filter press to press it into a red mud filter cake with a water content of less than 25%; (3) drying: sending the filter cake into a flash dryer to carry out crushing and drying so as to obtain powder with a water content of less than 0.5%; (4) grinding: subjecting the powder to superfine grinding in an impact type superfine powder mill to obtain 1250-6000 mesh superfine powder; (5) grading: grading the superfine ground material by a grader to obtain fine powder; and (6) modification: putting the fine powder into a modification machine, adding a modifier by spraying, and carrying out heat preservation reaction for 20-30min. The method provided in the invention realizes integration of material superfine processing and surface modification, simplifies the process, and no leakage exists in the production process. The method has the advantages of less environmental pollution, fast speed, high efficiency, environmental protection and energy saving, and no secondary pollution.
Owner:山东绿生洁环保科技有限公司

Device for directly producing urea solution for vehicles and production method thereof

ActiveCN104772031BSolve the problem of excessive formaldehyde contentSimple structureDispersed particle separationFluid phaseReverse osmosis
The invention belongs to a device for directly producing urea solution for vehicles and a production method thereof; it comprises a low-temperature methanol washing section, a liquid ammonia washing section and a secondary reverse osmosis device connected with a shift gas pipeline, and a carbon dioxide desorption gas outlet of the low-temperature methanol washing section The feed gas purification adsorption tower is connected to the gas phase inlet of the urea synthesis section, the gas phase outlet of the low temperature methanol washing section is connected to the liquid phase inlet of the urea synthesis section through the liquid ammonia washing section and the synthetic ammonia section, and the solid phase outlet of the urea synthesis section is connected to the liquid phase inlet of the urea synthesis section. The solid-phase inlet of the bubbling agitator is connected to the liquid-phase inlet of the bubbling agitator. The outlet is connected with the vehicle urea storage device; it has the advantages of simple structure, reasonable process method, low cost, stable quality, can effectively replace the existing crystallization process, realize large-scale industrial production and all indicators meet the vehicle urea standard.
Owner:河南心连心蓝色环保科技有限公司 +1
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