43results about How to "Reasonable workmanship" patented technology

According to the artificial chamber type high-pressure gas storage steel-rubber composite sealing structure and the construction technology, when rubber sealing layers at the lap joint position of the internal rubber sealing layers and the two ends of the internal rubber sealing layers are vulcanized with L-shaped rubber rings, and meanwhile after the L-shaped rubber rings are vulcanized through O-shaped rubber rings and pressing rings, a rubber layer full-sealing structure is formed inside; through the unwelded steel plate coiled material and the internal full-sealed rubber structure, the steel plate has a certain expansion and contraction amount, and the rubber also has a certain elongation percentage, so that the sealing performance of the chamber is ensured, and compared with a traditional steel tank or a full-sealed steel plate structure, the steel plate coiled material has a certain deformation amount in the aspect of structure; compared with a traditional integral welding structure, the steel plate is prevented from being exploded, the gas storage capacity is greatly improved, the structure is simpler in technology, large-diameter and large-length laying can be achieved, and the technology is more reasonable.

The invention relates to the technical field of foundation pit supporting design, and particularly discloses a design method of a gravel sand layer PRC prestressed pipe pile deep foundation pit supporting system, which comprises the PRC prestressed pipe piles which are arranged at intervals along the side of a foundation pit to form row piles by optimizing the structure of the supporting system, two prestressed anchor cables are arranged at the upper part of the foundation pit, and the PRC prestressed pipe piles are arranged at intervals along the side of the foundation pit. Comprising a first anchor cable locked on a top beam and a second anchor cable locked on a waist beam, the top beam is connected to the top of the PRC prestressed pipe pile, the waist beam is arranged on the upper portion of the middle of the PRC prestressed pipe pile, numerical simulation analysis is carried out, the feasibility of the construction technology is analyzed through data simulation, and the construction efficiency of the PRC prestressed pipe pile is improved. A support system structure and a construction process scheme are preliminarily determined, a monitoring system is arranged to monitor and control in real time, the safety of the construction process is ensured, and the support system structure and the process are verified, perfected and confirmed through the monitoring system.

The invention provides a cross-linking and curing environment-friendly polyurethane waterproof coating and a preparation method thereof, and the cross-linking and curing environment-friendly polyurethane waterproof coating comprises the following raw materials by weight: 15-30 parts of a polyhydroxy compound; 6 to 15 parts of pentaerythritol polyether; 1-5 parts of an anionic surfactant; 1 to 5 parts of nano silicon dioxide aerogel; 1-8 parts of wollastonite powder; 25 to 45 parts of fly ash floating beads; 10 to 25 parts of diisocyanate; 0.5 to 3 parts of chlorinated paraffin; and 0.5 to 3 parts of N, N-dimethyl-2-hydroxyethylamine. The cross-linking curing environment-friendly polyurethane waterproof coating provided by the invention solves the environment-friendly problem of the traditional polyurethane waterproof coating, realizes solvent-free curing, meets the environment-friendly requirement, improves the comprehensive properties such as elasticity and durability of a coating film, and provides a safer and more effective solution for waterproof construction.

The invention discloses a method for preparing iron oxide red by using acidic ferrous wastewater, and belongs to the technical field of iron oxide pigments. The method comprises the following steps: by taking acidic ferrous wastewater generated by an iron oxide red factory as a raw material, adjusting the pH value, adding iron powder and phosphate to remove impurities, and carrying out solid-liquid separation to obtain a high-purity ferrous sulfate solution; and concentrating and crystallizing the obtained ferrous sulfate solution, dehydrating and drying, crushing and grinding, calcining at high temperature, and crushing to obtain the high-purity iron oxide red. According to the method, the high-purity iron oxide red pigment is obtained by firstly adjusting the pH value, then adding the iron powder and the phosphate to remove impurities, then separating out FeSO4. 7H2O by utilizing a crystallization technology, dehydrating, drying and then carrying out high-temperature calcination, the process is reasonable, the preparation method is simple and feasible, and the method is suitable for industrial production. Iron oxide red production wastewater can be comprehensively utilized, and the product quality is equivalent to or partially superior to that of precipitated iron oxide red.

The invention belongs to the technical field of synthesis of ether compounds, and discloses a preparation method and application of low-foam multi-block polyether. The preparation method comprises the following steps: mixing an initiator with a basic catalyst, heating, dropwise adding first ethylene oxide, and carrying out primary reaction and primary curing; after the primary curing is finished, adding epoxide to carry out secondary reaction and secondary curing; after the secondary curing is finished, adding second ethylene oxide to carry out third reaction and third curing; and finally, degassing and neutralizing to prepare the low-foam multi-block polyether. The second ethylene oxide accounts for 25-55% of the total mass of the first ethylene oxide and the second ethylene oxide; the epoxide comprises propylene oxide, a mixture of ethylene oxide and propylene oxide, or a propylene oxide-ethylene oxide-propylene oxide block structure. The multi-block polyether prepared by the invention not only can meet the working temperature of wet cleaning of chips, but also has the advantages of few byproducts, low foaming and excellent defoaming performance.

The invention relates to the technical field of plant compositions, in particular to a preparation method of a plant composition, which is simple, convenient and reasonable in process, and the obtained plant extract has obvious effects of delaying skin aging and improving body functions, can promote the generation of ATP in fibroblasts, and has a good application prospect. The traditional Chinese medicine composition can inhibit the gene expression of metalloproteinase-1 and metalloproteinase-3 in senescence fibroblasts, can achieve the effects of improving the body function and resisting the senescence of organs such as the skin through oral administration or skin administration, and is rich in resource because the astragalus membranaceus and the dendrobium nobile are mainly adopted as the raw materials; the extracted plant composition extract has a remarkable anti-aging effect, and the plant composition which is rich in resource and remarkable in effect can be obtained, so that the problems that an existing plant composition is high in price and not remarkable in effect are solved.

This invention belongs to the field of hard carbon technology, specifically relating to a bamboo-based and lignin-based hard carbon composite material, its preparation method, and its applications. The process involves pretreating raw materials to obtain pretreated material; pretreating the pretreated material with an acidic oxidant to obtain acidic oxidant pretreated material; pre-oxidizing the acidic oxidant pretreated material to obtain pre-oxidized material; pre-carbonizing the pre-oxidized material under a protective atmosphere to obtain pre-carbonized material; pulverizing the pre-carbonized material to obtain pulverized material; acid washing followed by water washing to obtain purified material; soaking the purified material in acid, filtering, and drying to obtain soaked material; mixing the soaked material with a modifier, and high-temperature coating and carbonizing under a protective atmosphere to obtain bamboo-based coated hard carbon or lignin-based coated hard carbon. Mixing the two types of hard carbon and carbon coating yields a bamboo-based and lignin-based hard carbon composite material, which is used in negative electrode sheets and batteries. When applied to batteries, the hard carbon composite material of this invention can improve battery energy density.

The invention relates to the technical field of biological resource utilization, in particular to an extraction method of sea cucumber oil. According to the extraction method provided by the invention, by-products of sea cucumber processing are fully utilized, and the sea cucumber oil rich in sea cucumber saponin is efficiently extracted through ethanol extraction, vacuum concentration, two-aqueous-phase extraction and impurity removal, ethanol redissolution and vacuum concentration, so that nutrient substances of the sea cucumber oil are well reserved, impurities such as proteoglycan in the sea cucumber oil are effectively removed, the purity of the sea cucumber oil is improved, and the sea cucumber oil is suitable for industrial production. The health-care value of the sea cucumber oil is improved. The method is simple in process, green, economical and suitable for industrial popularization.

The invention discloses high-dosage rubber powder modified asphalt and a preparation method thereof, and the rubber powder modified asphalt is prepared by adding 22-30 parts by weight of modified rubber powder into 100 parts by weight of road petroleum asphalt, the modified rubber powder is prepared from the following components in parts by weight: 85 to 95 parts of common rubber powder, 3 to 6 parts of phenolic resin, 0.6 to 1.2 parts of microcrystalline wax, 2 to 5 parts of naphthenic oil, 0.2 to 0.6 part of antioxidant and 0.2 to 0.6 part of EVA (Ethylene Vinyl Acetate). The preparation method comprises the following steps: (1) preparing the modified rubber powder; and (2) preparing the modified asphalt cement. According to the invention, co-melting and blending of the rubber powder and the asphalt are improved, the mixing amount of the rubber powder in the rubber asphalt can be obviously increased, the pavement and durability are greatly improved, the production cost and environmental pollution of the asphalt mixture are effectively reduced, and the asphalt mixture has economic and social double benefits, is simple in preparation process and has relatively high practical application value.

The present application relates to a kind of methods and devices for preparing anhydrous hydrogen fluoride and sulfuric acid.The method comprises the following steps: removing impurities from industrial waste fluorosulfuric acid, mixing it with concentrated sulfuric acid to form a pretreated mixture; using microwave heating to rapidly heat the reactor, a static bed is arranged in the reactor; the pretreated mixture is passed into the upper surface of the static bed in the preheated reactor, the pretreated mixture is heated by microwave, and hydrogen fluoride and sulfur trioxide gas are generated by the decomposition of the pretreated mixture; hydrogen fluoride and sulfur trioxide are mixed and passed into low-temperature concentrated sulfuric acid to absorb sulfur trioxide gas; then passed into low-temperature condensing equipment, and liquid hydrogen fluoride is collected; the liquid hydrogen fluoride is purified by rectification; and the concentrated sulfuric acid that absorbs sulfur trioxide is evaporated and concentrated.The advantages are: using a "static bed + material" double-wave absorption system, achieving more uniform and stable temperature field distribution in the liquid layer of industrial waste fluorosulfuric acid, making the pyrolysis of industrial waste fluorosulfuric acid more efficient and stable.

The invention relates to the technical field of anti-corrosion coatings, in particular to a preparation method of conductive metal anti-corrosion paint, and the prepared coating can remarkably improve the corrosion resistance of the 304 type stainless steel surface. Compared with uncoated 304SS bare steel, the corrosion potential of 304SS under the protection of the coating is obviously increased, the corrosion current density is obviously reduced, the ZIFs / GO composite material is adopted as epoxy resin coating filler, and PPY is assisted to prepare the anti-corrosion coating. The ZIFs has unique crystal structure and chemical properties, the GO has excellent barrier property and mechanical property, the PPY has good conductivity and oxidation-reduction property, the ZIFs, the GO and the PPY cooperate with one another, so that the coating has better comprehensive performance, and the ZIFs / GO composite material can enhance the binding force between the coating and a matrix and improve the barrier property of the coating at the same time; and the PPY surface layer can further improve the conductivity of the coating and is beneficial to exerting the anodic protection performance in a corrosive environment, so that the matrix metal is better protected.

The invention discloses a preparation method of a gordon euryale seed food capable of relieving diabetic nephropathy. The preparation method comprises the following steps: cleaning and soaking; performing microwave drying, and draining the fished-out gordon euryale seeds; crushing and performing enzymolysis; adding sodium alginate and konjac glucomannan into enzymatic hydrolysate after enzymolysis, and uniformly stirring; extruding through an extruder to prepare a gordon euryale seed bean-shaped product; and drying, airing and bagging. The invention aims to break through the traditional method and develop the gordon euryale seed food capable of relieving diabetic nephropathy in combination with the modern process formula. The cake is crispy and tasty, is free of additives, and can relieve blood sugar rise to a certain extent.

The utility model discloses a double-side hole expanding die for a vertical pipe. The double-side hole expanding die is characterized by comprising a lower die, an upper die, a left side die and a right side die, a first lower semicircular die hole and a second lower semicircular die hole are formed in the upper surface of the lower die; a first upper semicircular die hole and a second upper semicircular die hole are formed in the lower surface of the upper die; a first left male die and a second left male die are arranged on the right side of the left side die; a first right male die and a second right male die are arranged on the left side of the right side die; the positions of the first upper semicircular die hole and the first lower semicircular die hole correspond to each other up and down; the positions of the second upper semicircular die hole and the second lower semicircular die hole correspond to each other up and down; the first left male die, the first lower semicircular die hole and the first right male die are concentrically arranged; and the second left male die, the second lower semicircular die hole and the second right male die are concentrically arranged. The vertical pipe double-side expansion hole forming device can achieve double-side expansion hole forming of a vertical pipe at a time, stamping deformation is small, the technology is more reasonable, and the product percent of pass is high.

The invention relates to a decomposing furnace deep self-denitration system and process capable of using alternative fuel. The decomposing furnace deep self-denitration system comprises a rotary kiln, a kiln tail smoke chamber, a decomposing furnace, a tertiary air pipe and an alternative fuel storage and transportation system, the decomposing furnace comprises a first-stage combustion furnace, a gasification furnace and a second-stage combustion furnace, the bottom of the first-stage combustion furnace is connected with the kiln tail smoke chamber, the bottom of the gasification furnace is connected with an outlet of the first-stage combustion furnace, and an air inlet of the second-stage combustion furnace is connected with an outlet of the gasification furnace; an air inlet of the second-stage combustion furnace is a volute type air inlet; the tertiary air pipe comprises a tertiary air lower branch pipe and a tertiary air upper branch pipe, the tertiary air lower branch pipe is connected with the side surface of the lower part of the primary combustion furnace, and the tertiary air upper branch pipe is connected with the bottom of the secondary combustion furnace; and an outlet of the alternative fuel storage and transportation system is respectively connected with the primary combustion furnace and the gasification furnace. According to the invention, the feeding fluctuation of alternative fuel can be reduced, the consumption of fire coal is saved, the problem that fuel type NOx is gradually released in a decomposing furnace in an extended range and is difficult to deeply remove is solved, and deep self-denitration is realized.

The invention discloses a method for extracting Chinese herbal medicine by ultra-supercritical CO2, which comprises the following steps: extracting the Chinese herbal medicine by using CO2 as an extracting solvent under the conditions that the extraction pressure is 80-200MPa and the extraction temperature is 40-80 DEG C to obtain an extract; performing three-stage separation on the extract to obtain a Chinese herbal medicine extract; wherein the separation pressure of the three-stage separation is as follows: the first stage is 50-80 MPa, the second stage is 30-40 MPa, and the third stage is 10-20 MPa. According to the technical scheme, Chinese herbal medicine macromolecules and high-polarity substances can be extracted, an entrainer or an auxiliary does not need to be added, and the method has the advantages of being free of pollution, free of additives, free of solvent residues, good in separation capacity, high in extraction rate, low in energy consumption and reasonable in process.

The invention relates to a foundation pit structure construction method which comprises the following steps: step 1, a field manufacturing procedure: drilling an underground groove and manufacturing a reinforcement cage on site, then dynamically detecting the reinforcement cage by a detection mechanism, and meanwhile, installing a plurality of first sensors on the reinforcement cage by an installation mechanism; 2, a positioning and mounting procedure: after a detection mechanism dynamically detects and is matched with hoisting to adjust the mounting position of the first sensor, drilling a plurality of measuring holes in cooperation with a punching mechanism, and meanwhile, mounting a second sensor in each measuring hole in assistance of a mounting mechanism; and 3, a pouring pile-forming procedure is carried out, specifically, a punching mechanism supports deformation of the reinforcement cage to adjust stress, meanwhile, a mounting mechanism is assisted to mount a supporting cushion block to support the reinforcement cage to keep the stress, and under monitoring of a first sensor and a second sensor, the position and speed of cement pouring pile-forming are adjusted in real time. The problems that in the foundation pit construction process, manpower consumption is large, construction efficiency is low, the technology is unreasonable, and errors exist in monitoring data are solved.

A method for visible-light catalytic degradation of trace organophosphorus pesticides in aquatic environments involves first preparing functionalized nitrogen carbide materials via high-temperature pyrolysis. Then, zirconium-based MOFs are grown in situ on the surface of the functionalized nitrogen carbide materials, and a highly efficient heterogeneous composite photocatalyst is designed and synthesized. Finally, the trace organophosphorus pesticides in the aquatic environment are rapidly and stably degraded under visible light. The advantages of this invention are: the process is reasonable and easy to implement; the zirconium-based MOFs-modified functionalized nitrogen carbide heterogeneous composite photocatalyst prepared by this method exhibits good visible-light responsiveness and stability for organophosphorus pesticide degradation, achieving efficient adsorption and rapid mass transfer of organophosphorus pesticides; this degradation technology possesses high adsorption capacity, multiple catalytic activities, and strong practicality, greatly facilitating the visible-light degradation of trace organophosphorus pesticides, improving the efficiency of heterogeneous composite photocatalysts, and broadening the application range of functionalized nitrogen carbide materials and zirconium-based MOFs.

The invention discloses a self-heating chemical vapor deposition device and a manufacturing method of a graphene copper conductor, relates to the technical field of composite materials, and aims to solve the problems of low production efficiency and disordered arrangement of graphene in the batch preparation process of the graphene copper conductor preparation process. An induction coil is sleeved on the copper-based material and is used for heating the copper-based material, and two ends of the induction coil are respectively connected with a power supply through connecting wires.

The invention discloses a method for synthesizing diaminopyrimidine nitrogen oxide, which comprises: performing a ring-closing reaction on ethoxymethylene cyanoacetoethyl ester and guanidine in a reaction solvent to obtain a pyrimidine skeleton intermediate, performing a decarboxylation reaction in a decarboxylation reagent and an organic solvent to obtain a diaminopyrimidine intermediate, and reacting with an oxidant to obtain diaminopyrimidine nitrogen oxide. The invention uses ethoxymethylene cyanoacetoethyl ester and guanidine as raw materials, sequentially undergoes a ring-closing reaction, a hydrolysis decarboxylation reaction and an oxidation reaction to obtain diaminopyrimidine nitrogen oxide in high yield. The synthetic route is novel, and a new synthetic method is provided for 2,4-diaminopyrimidine and 2,4-diaminopyrimidine nitrogen oxide. The raw materials are cheap and easy to obtain, the cost is low, and operations such as pressurization are not required, and a synthetic route with simple operation, short steps, high reaction selectivity and good safety is provided.

The present invention relates to the field of chemical detection technology, and in particular to a method for detecting impurity content in scandium fluoride. A method for detecting impurity content in scandium fluoride comprises the following steps: (1) weighing an appropriate amount of scandium fluoride as a sample, mixing and melting the scandium fluoride with sodium hydroxide, sodium carbonate and sodium bicarbonate, and adding water to form a mixed solution after cooling; (2) adding hydrochloric acid and boric acid to the mixed solution to obtain a clear solution; (3) using ICP-OES to detect the spectral intensity of different impurities in the clear solution, and calculating the impurity content in scandium fluoride according to a standard curve. The detection method of the present invention has reasonable process, safety and reliability, simple operation, low cost, and meets production needs.

The invention relates to full-automatic assembling equipment for a USB (universal serial bus) rechargeable lithium battery, a production process and a product, and the equipment comprises a battery cell feeding device, a workbench, a disc station transfer device, a battery cell pin reversing and shaping device, an upper cover feeding and assembling device, an adhesive tape pasting device, a steel shell mounting device, an electrical property detection device, a non-defective product discharging device and a defective product discharging device, the battery cell feeding device drives a battery cell to enter the disc station transferring device, and the disc station transferring device drives the battery cell to rotate so as to sequentially pass through the battery cell pin reversing and shaping device, the upper cover feeding and assembling device, the adhesive tape pasting device, the steel shell installing device, the electrical property detecting device, the good product discharging device and the defective product discharging device. The USB charging lithium battery automatic assembling device is reasonable in design, the structures of all the devices are matched with one another, automatic assembling of USB charging lithium batteries is achieved, manpower and material resources are greatly saved, production efficiency is improved, and production cost is reduced.

The invention discloses an ointment for treating diarrhea-type irritable bowel syndrome. The ointment is prepared from the following raw material medicines: 10-15g of agastache rugosus, 12-18g of rhizoma atractylodis, 10-15g of pericarpium citri reticulatae, 12-18g of parched white peony root, 28-32g of poria cocos, 10-15g of mangnolia officinalis, 6-12g of pericarpium arecae, 28-32g of rice sprout, 6-12g of divaricate saposhnikovia root, 12-18g of rhizoma cyperi, 6-12g of angelica sinensis, 10-15g of cynanchum paniculatum and 3-9g of honey-fried licorice root. The invention also provides a preparation method of the composition. The ointment disclosed by the invention is applied to the Shenque acupoint during treatment, and can obviously improve symptoms and signs of a patient after treatment, especially diarrhea, stomachache and abdominal distention and fullness; the treatment efficiency, the total effective rate, the IBS-SSS scale and the IBS-DSQ scale evaluation of the traditional Chinese medicine composition are superior to those of a conventional western medicine group. The ointment is remarkable in curative effect, convenient to use, good in safety, low in price, simple in medicine and high in clinical popularization value.

The coil filling and sealing device for the high-temperature servo valve comprises a mold formed by detachably and fixedly connecting a left mold and a right mold, a plurality of glue filling cavities with cavity openings located in the upper end face of the mold are formed in the mold, a coil is centrally positioned and installed in the glue filling cavities, and glue filling holes located in the outer sides of the glue filling cavities and vertically formed are formed in the mold. The orifice of the glue injection hole is located in the upper end face of the mold, the glue injection hole is communicated with the glue pouring cavity through a glue pouring groove horizontally formed in the mold, glue pouring liquid which is heated and injected into the glue injection hole is immersed into the glue pouring cavity through the glue pouring groove, and pouring sealing of the coil is achieved. Based on the structural characteristics of the coil for the high-temperature servo valve, the mold with the glue pouring cavity, the glue pouring hole and the glue pouring groove is designed, the technological process of the glue pouring process is optimized, bubble-free coil potting is achieved, meanwhile, it is ensured that the shape of crack pouring glue is regular, and the problem that the potting quality is affected due to the fact that bubbles exist in glue after potting in a traditional mode is solved; and after encapsulation, the colloid is regular in appearance, good in encapsulation consistency and high in encapsulation efficiency.

The invention relates to a deep self-denitration system and process for a decomposing furnace with a gasification furnace and a two-stage combustion furnace. The deep self-denitration system comprises a preheater, a rotary kiln, a kiln tail smoke chamber, the decomposing furnace and a tertiary air pipe, the decomposing furnace comprises a first-stage combustion furnace, a gasification furnace and a second-stage combustion furnace, the bottom of the first-stage combustion furnace is connected with the kiln tail smoke chamber, the bottom of the gasification furnace is connected with an outlet of the first-stage combustion furnace, an air inlet of the second-stage combustion furnace is connected with an outlet of the gasification furnace, and a final-stage cyclone inlet of the preheater is connected with an outlet of the second-stage combustion furnace; an air inlet of the second-stage combustion furnace is a volute type air inlet; the tertiary air pipe comprises a tertiary air lower branch pipe and a tertiary air upper branch pipe, the tertiary air lower branch pipe is connected with the side face of the lower portion of the first-stage combustion furnace, and the tertiary air upper branch pipe is connected with the bottom of the second-stage combustion furnace. The decomposition furnace is divided into the gasification furnace and the two-stage combustion furnace, the problem that fuel type NOx is gradually released in an extended range in the decomposition furnace and is difficult to deeply remove is solved through the graded design of tertiary air, pulverized coal and raw materials, and deep self-denitration is achieved.

According to the process reaction, N-Cbz-4-oxo-3-pyrrolidine ethyl formate and a Wittig reagent of ethyl triphenyl phosphorus iodide are used as synthesis starting points, firstly, N-Cbz-4-oxo-3-pyrrolidine ethyl formate and the Wittig reagent of ethyl triphenyl phosphorus iodide are subjected to nucleophilic addition to generate olefin reaction, then the olefin reaction is subjected to hydrolysis reaction under the alkaline condition to generate acid, and the acid is subjected to acid hydrolysis reaction under the alkaline condition to generate the N-Cbz-4-oxo-3-pyrrolidine ethyl formate and the Wittig reagent of ethyl triphenyl phosphorus iodide. The method is reasonable in process, high in yield, simple to operate, low in production cost and beneficial to large-scale industrial production, and fills up the process blank in related fields.

The present invention provides a drilling pressure relief method suitable for ultra-deep vertical shafts. During the excavation process of the ultra-deep vertical shaft, drilling pre-pressure relief is performed, and stress relief holes and pressure relief holes are arranged in sequence on the working surface in the excavation direction; the stress relief holes are arranged at equal intervals around the working surface, and the pressure relief holes are arranged in the internal area; multiple pressure relief holes form a straight drilling row passing through the center point of the working surface, and the spacing of the pressure relief holes is arranged in equal intervals from the central area of ​​the working surface to the shaft wall of the vertical shaft, and the maximum spacing is located in the central area; two consecutive excavation-slag removal processes are performed according to the unit excavation depth, and then drilling pre-pressure relief is performed again on the new working surface; the excavation-slag removal and drilling pre-pressure relief processes are repeated alternately until the vertical shaft is excavated to the set depth. The method releases stress in the stress concentration area in advance through drilling pre-pressure relief, and maximizes the pressure relief degree through the design of the hole arrangement structure and related parameters, ensuring the safety of ultra-deep vertical shaft construction, and has high practical application value.

The invention provides a method for preparing a composite mushroom seasoning through frequency sweep ultrasonic coupling enzymolysis, and relates to the technical field of seasoning preparation, the preparation method of the mushroom seasoning comprises the following steps: treating a composite mushroom dry product with a high-speed pulverizer, and sieving to obtain composite mushroom powder; uniformly mixing the compound mushroom powder with drinking water according to a certain proportion to obtain a compound mushroom homogenate; the method comprises the following steps: carrying out frequency sweep ultrasonic treatment on a composite mushroom homogenate, setting the frequency of the frequency sweep ultrasonic treatment to be single-frequency ultrasonic treatment, double-frequency ultrasonic treatment, three-frequency ultrasonic treatment and four-frequency ultrasonic treatment, and then carrying out enzymolysis on the composite mushroom homogenate subjected to the frequency sweep ultrasonic treatment. According to the present invention, with the application of the method, the cell wall and the internal structure can be effectively destroyed, and the more enzyme cutting sites can be exposed so as to improve the enzymolysis sensitivity, the mushroom seasoning prepared through the method has characteristics of fruity aroma, sweet aroma, mushroom and the like, and the preparation method is simple.

The process described in this application uses ethyl N-Cbz-4-oxo-3-pyrrolidinecarboxylate and Wittig reagent ethyltriphenylphosphine iodide as the starting points for synthesis. First, ethyl N-Cbz-4-oxo-3-pyrrolidinecarboxylate undergoes a nucleophilic addition reaction with Wittig reagent ethyltriphenylphosphine iodide to generate an olefin. Then, it undergoes a hydrolysis reaction under alkaline conditions to generate an acid, followed by a double bond reduction reaction under catalytic hydrogen conditions. The process is reasonable, has high yield, is simple to operate, and has low production cost, which is conducive to large-scale industrial production and fills a technological gap in related fields.

The application discloses a CO2-ion water flooding molecular dynamics simulation method and belongs to the technical field of CO2 oil displacement. The method comprises the following steps: establishing oil molecule models, water molecule models, CO2 molecule models, CaCl2 molecule models and graphene plate models corresponding to the characteristics of a target oil reservoir; optimizing the geometric structures of the models; assembling the optimized molecular models into a CO2-CaCl2-H2O ternary displacement system and performing molecular dynamics simulation; selecting an NVT ensemble during simulation, applying a periodic boundary condition, adopting a COMPASS II force field and configuring atomic potential parameters, running energy minimization and temperature initialization, and then performing displacement process simulation; quantitatively evaluating the oil displacement effect of the displacement medium of the CO2-CaCl2-H2O ternary system based on a trajectory file output by simulation; and the application can better explain the behavior of molecules under the synergistic action of multiple displacement media, reflect the oil displacement microscopic mechanism under the synergistic action of multiple displacement media, and has important significance for optimizing the development effect of tight oil reservoirs and improving the recovery rate.

The utility model belongs to the field of automobile thick-wall parts, and particularly relates to a thick-wall part structure for optimizing bright spots, which comprises a thick-wall part, a horizontal light guide block arranged on the thick-wall part, an optical pattern surface arranged at the front end of the light guide block, optical patterns on the optical pattern surface, and a smooth surface arranged on the light guide block and behind the optical pattern surface. A light emitting head is arranged at the front end of the light guide block, the optical pattern surface is arranged in front of the light emitting head, the light surface is arranged on the periphery of the back of the light emitting head and protrudes out of the light guide block, the optical pattern surface and the light guide block below the light emitting head directly face each other, the area of the optical pattern surface is the same as that of the light guide block, and the size d of the light surface protruding out of the light guide block ranges from 0.1 mm to 0.2 mm. The structure is simple and ingenious, the smooth surface is designed on the back of the optical pattern surface, and the light emitting effect is improved.