50results about How to "The steps are well designed" patented technology

The invention discloses a sewage treatment method based on supernatant reflux of a flocculation settling tank, and belongs to the technical field of wastewater treatment. The sewage treatment method based on the supernatant reflux of the flocculation settling tank disclosed by the invention comprises the following steps that firstly, a flocculant is added in a mixing tank to carry out a mixed reaction, water flows into the flocculation settling tank after the mixed reaction, a coagulant aid is added to carry out a flocculation reaction, then supernatants subjected to a flocculation precipitation reaction flow back to the mixing tank and the flocculation settling tank respectively, concentrations of residual agents in the supernatants are fully utilized to carry out a reaction, and the supernatants are discharged externally or enter into the next treatment unit for carrying out a treatment after sewage treatment reaches standards. The sewage treatment method disclosed by the invention lowers a load impact resulted from water quality and quantity fluctuations, and avoids excessive pollutant concentrations caused by insufficient agent dosage, and further reduces agent adding amount in a sewage treatment process and excessive agent concentrations of effluent water to effectively lower the operating cost of the sewage treatment.

The invention discloses coagulation precipitation equipment based on sludge concentration pool supernatant fluid backflow and a method thereof, and belongs to the technical field of sewage treatment.By using the technical scheme, sewage to be treated enters a reaction pool high-speed section; precipitating agents are added and rapidly stirred to perform precipitation reaction; next, the materialsenter a reaction pool low-speed section; coagulant aids are added for low-speed stirring to enable alumen ustum to grow up, so that the formed mud water mixture enters a precipitation pool; supernatant fluid in the precipitation pool is discharged; sludge of the precipitation pool enters a sludge concentration pool; partial supernatant fluid in the sludge concentration pool flows back to the reaction pool high-speed section to be mixed with the sewage to be treated for continuous and fast precipitation reaction. Through the sludge concentration pool supernatant fluid backflow, the effect of fast precipitating contaminants in the sewage by using suspension small particles in the sludge precipitation pool supernatant fluid is realized; no crystal nucleus is additionally added; the additionof the precipitating agents is reduced; the reaction dwell time of the reaction pool is shortened; the reaction pool volume is reduced; the sewage treatment investment cost is reduced.

The present invention provides a litchi seed dripping pill quality detection method, which comprises: taking a procyanidin reference substance, and adding methanol to dissolve so as to prepare a reference substance solution; taking litchi seed dripping pills, grinding, precisely weighing 0.5 g of the litchi seed dripping pills, adding to 40 mL of acetone with a volume concentration of 70% to carry out ultrasonic extraction, filtering, washing the residue with acetone, combining the filtrates, carrying out water bath heating so as to completely evaporate the acetone, dissolving the residue with methanol and transferring into a measuring flask, diluting with methanol to achieve the scale, shaking to achieve a uniform state, filtering with a 0.2 [mu]m micro-pore filtration membrane, and adopting the subsequent filtrate as a test solution; precisely sucking the reference substance solution to load, and measuring the peak area to obtain a standard curve equation; and precisely sucking the test solution to load, measuring the peak area, and substituting into the standard curve equation to calculate the procyanidin content. According to the present invention, the specificity of the method is good, and the procyanidin content in the litchi seed dripping pill can be well, efficiently, stably, quickly and sensitively determined so as to effectively detect the litchi seed dripping pill quality and ensure the medication safety.

The invention discloses a light-emitting diode with a variable pattern and a preparation method thereof. The diode comprises an epitaxial wafer, wherein an ITO film is evaporated on the upper surface of the epitaxial wafer, the ITO film is provided with a plurality of light-emitting areas and etching areas, each light-emitting area is correspondingly provided with a P-surface electrode, the adjacent P-surface electrodes are insulated and separated, an insulating layer is deposited on the surface of each etching area, and an N-face electrode is evaporated on the end face of the side, away from the ITO film, of the epitaxial wafer. The method is simple in structure and reasonable in step design, the prepared light-emitting diode can be used independently, does not need to work in cooperation with a reticle and can emit needed patterns, and the advantages of simple structure and low power consumption are guaranteed while the utilization rate of a light source is improved; and meanwhile, the luminous pattern of the diode prepared by using the technical scheme has variability, and can be changed according to a distance between a reflection sighting telescope and a target, and the practicability of the diode is relatively high.

The invention discloses an intelligent power grid power information safety monitoring system and a method. The system comprises an information acquisition module, an information processing module, a communication module and a safety monitoring module, and is characterized in that the information acquisition module comprises a power generation equipment information acquisition module, a power transmission equipment information acquisition module, a power distribution equipment information acquisition module and a power utilization equipment information acquisition module; the information processing module is used for storing and processing various power information in the intelligent power grid; the safety monitoring module comprises a forward unit and a backward unit; the information acquisition module adopts the forward unit when power information is transmitted to the communication module in a one-way mode; and the communication module adopts the backward unit when power information is transmitted to the information acquisition module in a one-way mode. Reliability, integrity, confidentiality and non repudiation of power information transmission can be realized.

The present invention discloses a smart grid electric power information safety monitoring system and a smart grid electric power information safety monitoring method. The smart grid electric power information safety monitoring system comprises an information acquisition module, an information processing module, a communication module and a safety monitoring module, and is characterized in that: the information acquisition module comprises a power generation equipment information acquisition module, a power transmission equipment information acquisition module, a distribution equipment information acquisition module and an electric equipment information acquisition module; the information processing module is used for storing and processing various electric power information in a smart grid; the safety monitoring module comprises a forward unit and a reverse unit; when the information acquisition module unidirectionally transmits the electric power information to the communication module, the forward unit is adopted, and when the communication module unidirectionally transmits the electric power information to the information acquisition module, the reverse unit is adopted. The smart grid electric power information safety monitoring system of the present invention achieves reliability, integrity, security and non-repudiation of transmission of the electric power information.

The invention discloses a simple and convenient synthesis method of 9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-3-isobutyl-2H-benzo[a] quinolizidine-2-ketone. According to the invention, easy raw material source is obtained; the preparation cost of the medicine is largely saved by using cheap and easily obtained 5-methyl-2-hexanone as raw material; and the structures of an immediate and a target compound are certified through verifications of nuclear magnetic resonance spectrum, mass spectrum, infrared spectrum and the like; the simple and convenient synthesis method of the 9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-3-isobutyl-2H-benzo[a] quinolizidine-2-ketone, disclosed by the invention, has the advantages of simplified synthesis process, two-step reaction, mild condition for the synthesis method, short reaction time, simplicity and convenience in operation and easiness in separation and purification; the shortcomings in the prior art are also avoided; the green synthesis process has the advantages of mild condition, simplicity and convenience in operation and environment friendliness; and a green synthesis way is provided for the synthesis of the 9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-3-isobutyl-2H-benzo[a] quinolizidine-2-ketone.

The invention provides combined far infrared fermentation equipment. The combined far infrared fermentation equipment comprises a high-temperature rapid sterilization, fermentation and decomposition device. The high-temperature rapid sterilization, fermentation and decomposition device comprises a bin, a driving and stirring device and a far infrared heating device, wherein the driving and stirring device comprises a stirring device arranged in the bin and a start driving device connected with the stirring device, and the far infrared heating device is matched with the stirring device. The combined far infrared fermentation equipment has the advantages of being simple in structure, convenient to operate, high in treatment efficiency, small in occupied space, low in manufacturing cost, low in time consumption, uniform in heating, capable of saving energy, environmentally friendly, wide in application range, and high in applicability and good in industrial application prospect when applied to large or medium or small raising households.

The invention discloses a preparation method of a small-size groove. The method comprises the following steps of spin-coating a layer of thick positive photoresist on an epitaxial wafer, preparing a photoresist window with a certain width by using a photoetching mask plate in an exposure and development mode, and directly spin-coating a layer of thin photoresist on a sinking bottom with the photoresist to obtain the small-size groove; a photoresist mask layer with a trench radian being formed, the size of the bottom of the trench radian being smaller than the width of a photoresist developmentpattern, finally, thin photoresist at the bottom of a trench being etched away through dry etching, etching continuing to be conducted directly with the photoresist as a mask, a trench pattern with the size smaller than or equal to 5 micrometers being obtained, and preparation of a trench with the smaller sizebeing achieved. The method is advantaged in that the method is reasonable in design andsimple to operate, the preparation of the small-size trench is effectively realized, multiple times of photoetching are avoided, the preparation can be realized by direct one-time dry etching, meanwhile, use cost is low, process steps are simplified, and practicability is better.

The invention discloses a medical stone bucket production processing technology which comprises the following steps of sorting, cutting, forming, emptying, drilling a faucet installation hole, polishing, waxing, and installing a faucet. Generally, according to the medical stone bucket production processing technology provided by the invention, the production efficiency of a medical stone bucket can be effectively improved, the yield of the produced medical stone bucket is high, and the industrialized production of the medical stone bucket is facilitated.

The invention relates to the technical field of welding, in particular to a large aluminum alloy tank butt joint girth welding method based on a riveting virtual point method process. The method adopts X groove design, adopts the riveting virtual point method process during assembly and welding, does not perform spot welding at the root of a groove, adopts a bridging method for spot welding, and greatly improves the welding efficiency. The method has the following advantages that (1) the procedures of electric arc back chipping and polishing are omitted, and the production efficiency is improved by about 48%; (2), the influence of manual back chipping is avoided, and the weld joint quality is improved; the one-time inspection qualification rate of X-ray and ultrasonic flaw detection of a weld joint is increased to 98% or above; (3) a part of cost of welding wires, argon, grinding wheel abrasive discs, power consumption, weld joint repair and the like is saved, and the production cost of enterprises is reduced; and (4), the working environment is improved, and the labor intensity is reduced.

The invention discloses a preparation method of a lead storage battery cathode lead paste containing a superconducting material additive. The lead storage battery cathode lead paste comprises lead powder, water, sulfuric acid, a superconducting material, a short fiber, superfine barium sulfate, acetylene black, lignin and humic acid. The preparation method of the lead storage battery cathode lead paste containing the superconducting material additive disclosed by the invention is simple and convenient, and reasonable in step design; and the preparation method of the lead storage battery cathode lead paste containing the superconducting material additive can be relatively quickly obtained. With the superconducting material as the additive of the lead storage battery cathode lead paste, the superconducting material can be well blended with active substances of the lead paste; the conductivity and the microstructure of a negative plate can be effectively improved; deposition of mass sulfate in the discharge process is hindered; the charge acceptance of a battery is improved; and the preparation method can be widely applicable to various lead-acid storage battery products.

The invention relates to the technical field of a sphygmomanometer accessory adjusting method, in particular to an adjusting method of a sphygmomanometer armband circumference. One end of a band bodyis connected with an adjusting ring, and the other end of the band body penetrates out of the adjusting ring; a second band body part bent into a ring shape is sleeved at the blood pressure measurement position of an arm, a first band body part is extended until the inner wall of a ring-shaped second band body part is slightly attached to the arm, the adjusting ring is turned over to be attached to the outer side of the second band body part with the side connected with the band body as a fulcrum; after a hasp hook surface and a hasp hair surface are hooked, the adjusting ring is reversely overturned and reset, and blood pressure measurement is started. According to the adjusting method, from hasp hooking to reverse resetting of the adjusting ring, a circumference difference of the ring isformed by the front second band body part and the rear second band body part, and a space allowing two fingers to be inserted conveniently is reserved in the ring. According to the convenient adjustment method, the measurement habit of a user can be changed, the enthusiasm of blood pressure measurement is ensured, and an adjustment process can be completed quickly even for the old and patients with inflexible hands and feet.

The invention discloses a preparation method of a polyurethane material for anti-static shoes. The method comprises the following steps: (1) hydroformylation: filling microalgae grease, rhodium dicarbonyl acetylacetonate (I) and triphenylphosphine into a quartz lining, and then putting the quartz lining into a high-pressure reaction kettle to obtain a reaction mixed solution; (2) hydroformylation: adding absolute methanol and a catalyst into the reaction mixed solution, and then putting into a high-pressure reaction kettle; and (3) addition polymerization: mixing the bio-based polyol, a tertiary amine catalyst, an organic tin catalyst, a surfactant, a foaming agent, an auxiliary foaming agent and a flame retardant to obtain the polyurethane material. According to the preparation method of the polyurethane material for the anti-static shoes, the step design is reasonable, the microalgae grease is used as the raw material, the bio-based polyol is prepared through a hydroformylation-hydrogenation reduction method, consumption of fossil resources is reduced, the polyurethane material is more environmentally friendly and sustainable, the prepared polyurethane material can serve as a scattered electricity material to be used for soles of the anti-static shoes, and the fireproof and flame-retardant capabilities are improved.

A preparation process of a silica gel magnetic ring comprises the following steps: (1) alloy ingot casting: taking high-purity raw materials of Fe, Si, Nb, FeB, Cu, Fe-P, Tb and La, putting the raw materials into a crucible, and smelting the raw materials through a non-self-consumption vacuum arc smelting furnace to obtain an alloy ingot; (2) atomization powder preparation: putting the alloy ingot into vacuum suspension smelting gas atomization powder preparation equipment for atomization powder preparation; (3) coating and pressing; and (4) heat treatment: putting the silica gel magnetic ring blank into a vacuum annealing furnace for annealing to obtain the silica gel magnetic ring. The preparation process of the silica gel magnetic ring is reasonable in step design, Fe, Si, Nb, FeB, Cu, Fe-P, Tb and La high-purity raw materials are smelted to prepare an iron-based nanocrystalline alloy with high amorphous forming ability and soft magnetic performance, amorphous magnetic powder is prepared through a gas atomization method, and the silica gel magnetic ring is prepared through silica gel coating, pressing and nanocrystalline annealing. The magnetic conductivity, the saturation flux density, the direct current bias performance and the mechanical property are improved, and the application prospect is wide.

The invention discloses a high-precision Mini-LED board electrical testing method. The high-precision Mini-LED board electrical testing method comprises the following steps: S1.1, switching a board substrate; s1.2, drilling is carried out; s1.3, single-face copper reduction browning is carried out; s1.4, performing laser treatment: performing laser treatment on the upper end surface of the first adapter plate substrate to form at least two first blind holes; s1.5, single-side copper deposition and electroplating: performing copper deposition and electroplating on the upper end surface of the first adapter plate substrate; s1.6, etching bases and bonding pads: etching at least two bases on the lower end face of the first adapter plate substrate; at least two first bonding pads are etched on the upper end face of the first adapter plate substrate, and the base is in bridge connection with the first bonding pads through the first blind holes; s3.1, forming an adapter plate; and S4, electrical testing. According to the method, the step design is reasonable, the size of the bonding pad is enlarged to 300 micrometers from 60 * 100 micrometers through the adapter plate, and measurement of a common flying probe machine is facilitated.