40results about How to "Less residue" patented technology

The river channel cleaning device comprises a ship body and a collecting cavity formed in the ship body, two sets of fixing bases are symmetrically fixed to the ship body, two sets of connecting plates are symmetrically fixed to the outer wall of one end of the ship body, salvage equipment is arranged between the connecting plates and the fixing bases, and the salvage equipment comprises a conveying belt; a cleaning and brushing mechanism is arranged between the two sets of fixing bases and comprises two sets of supporting bases, a rotating shaft is rotationally connected between the two sets of supporting bases, a plurality of sets of brushes are fixed to the surface of the rotating shaft, and the brushes are located above one end of the conveying belt and used for cleaning and brushing garbage fished by the conveying belt. Garbage on the conveying belt can be brushed into the collecting cavity through rotation of the brush, so that some light and thin or scattered garbage on the conveying belt can be timely brushed and taken away, and the time of the garbage staying on the conveying belt is effectively shortened.

The utility model provides a desorption device for extracting heparin sodium, and relates to the technical field of heparin sodium processing equipment, the desorption device comprises a main desorption tank body, a middle mixing rotating shaft and an upper annular pipe, the middle mixing rotating shaft is arranged in the main desorption tank body, the upper annular pipe is fixed on the upper part of the inner side of the main desorption tank body, two sides of the middle mixing rotating shaft are fixedly connected with outer cross frames, and the outer cross frames are fixedly connected with the middle mixing rotating shaft. Outer scraping strips are slidably connected to the outer sides of the outer transverse frames, inner supporting elastic pieces are arranged between the outer transverse frames and the outer scraping strips, inner transverse frames are symmetrically arranged on the two sides of the middle mixing rotating shaft, and a middle connecting shaft is slidably connected to the center of the middle mixing rotating shaft. The inner wall of the main desorption tank body is flushed through the outer cleaning nozzles, residues on the inner wall of the main desorption tank body are cleaned through the outer scraping strips, the cleaning efficiency of the inner wall of the main desorption tank body is improved through double treatment, the cleaning time is shortened, and the problems that a large amount of water needs to be accumulated for cleaning the tank body at a high position, and consequently the cleaning water consumption is large and time is consumed are solved.

The invention discloses a process for extracting copper, lead and precious metals by a vacuum distillation method. The process for extracting the copper, lead and precious metals by the vacuum distillation method comprises the following steps: step 1, preparing and pretreating raw materials; 2, plasma pretreatment; step 3, carrying out segmented heating and rotary distillation; step 4, multi-stage condensation; 5, online monitoring is carried out; according to the technology for extracting the copper-containing, lead-containing and precious metal through the vacuum distillation method, metal steam with different boiling points can be accurately separated at different temperature sections through a multi-stage condensation system, follow-up purification steps such as cross contamination, multi-stage condensation and electrolytic refining between the metals are avoided, the purity of the metals can be remarkably improved, and the purity of the copper-containing, lead-containing and precious metal is improved. The final product is ensured to meet the high-quality standard; the boiling point of metal in a vacuum environment is reduced, energy consumption required by heating is reduced, the rotary distiller is used, raw materials are continuously turned over in the heating process, uniform heating is guaranteed, the evaporation efficiency is improved, and residues are reduced.

The utility model relates to the technical field of soil sampling, and discloses a high-standard farmland construction soil sampling device which comprises a movable cart, a sampling mechanism is arranged on one side of the top of the movable cart, two sampling pipes are placed on the top of the movable cart, and a cleaning and rust preventing mechanism is arranged on the other side of the top of the movable cart. A user starts the motor, the motor drives the lead screw to make the movable support slide in a reciprocating mode, along with the reciprocating sliding of the movable support, the connecting rod on the front face of the movable support drives the two cleaning scraping plates to scrape off soil on the inner wall of the sampling pipe, and residues in the sampling pipe can be reduced by cleaning the inner wall of the sampling pipe; meanwhile, along with sliding of the movable support, the rust removal liquid in the storage box can be conveyed into the relay box through the conveying pipe and sprayed out from the multiple spray heads, the sampling pipe can be prevented from rusting, the purity of the sampling result is guaranteed, and meanwhile the service life of the sampling pipe is prolonged.

The application discloses a kind of polyacrylamide thickening agent for fracturing and preparation method thereof, belong to thickening agent technical field;The thickening agent includes the following weight parts of raw materials: anionic polyacrylamide 88~92 parts, chitosan 3~7 parts, lignosulfonate 3~7 parts;Among them, the anionic polyacrylamide is prepared by aqueous solution polymerization method under the action of initiator by acrylamide monomer and acrylic acid monomer, and the acrylic acid structural unit content is 5%~9%;The application is synergized by anionic polyacrylamide, chitosan, lignosulfonate, solves the problem that traditional polyacrylamide thickening agent is poor in temperature resistance and salt resistance, and environmental protection is insufficient, has good industrial application value.

The utility model relates to the technical field of footwear production, in particular to a baking device for footwear production, which comprises a device shell, a driving motor and a support plate, an electric heating plate is arranged in the device shell, the driving motor is arranged at the upper end of the device shell, a rotating shaft is arranged in the device shell, and the support plate is arranged on the side surface of the rotating shaft. A side baffle is arranged at the upper end of the supporting plate, a fixed baffle is installed at one end of the supporting plate, a rotating stud is arranged in the other end of the supporting plate, an installation block is arranged on the outer side of the rotating stud in a threaded meshing mode, and a movable baffle is fixed at the upper end of the installation block. The positions of the fixed baffles and the movable baffles can be adjusted according to the sizes and shapes of shoes to adapt to different types of shoes, the influence of the baffles and the supporting plates on the baking effect can be reduced, and the baking efficiency is improved.

The invention discloses a preparation method of a foam inhibiting and defoaming agent for a polyvinyl alcohol (PVA) aqueous solution, which comprises the following preparation steps: S1, preparing raw materials including ethylene oxide, propylene oxide, polyethylene glycol (PEG), absolute ethyl alcohol, a catalyst and silicone oil; according to the method, organic pollutants in the reactor are effectively removed, microbial cleaning not only has high selectivity and environmental protection property, but also can be carried out under mild conditions, damage of chemical cleaning agents to equipment is avoided, the organic pollutants in the reactor can be more thoroughly removed, and the method is suitable for industrial production. Residues possibly generated by a traditional chemical cleaning method are reduced, the cleaning effect is improved, the method does not depend on harmful chemicals, potential hazards to the environment and personnel are reduced, the requirement of green chemistry is met, the inner wall of the reactor is fully cleaned, residues of previous reactants or catalysts are avoided, the reaction purity can be improved, and the production cost is reduced. Generation of by-products is reduced, and the stability and quality of the final product are improved.

The invention provides a gold-plated solder laser deplating recovery method and system based on AI cooperation, and the method comprises the steps: carrying out the multi-modal data collection and AI cooperation modeling of a to-be-machined part, and obtaining a partition characteristic model; laser processing parameters and a laser processing path are generated based on the partition characteristic model, and laser deplating processing is carried out; the method comprises the following steps: carrying out negative pressure adsorption enrichment on noble metal particles through a micro-fluidic chip, and synchronously collecting characteristic spectrum data and temperature data; a laser deplating effect evaluation result is obtained through an AI evaluation model; and performing dynamic fine adjustment on the laser processing parameters according to an effect evaluation result to form closed-loop iteration. According to the application, integrated intelligent cooperation of gold-plated solder deplating detection, process execution and precious metal recovery is realized through cooperative linkage of multi-mode sensing, AI cooperative regulation and control, laser precision processing and micro-fluidic recovery feedback and differential process adaptation; and the plating adaptability of the laser deplating process, the controllability of the deplating process and the high efficiency of precious metal recovery are improved.

The present invention provides a cleaning device for nonferrous metal casting molds, which relates to the technical field of casting mold cleaning equipment, including an aluminum ingot continuous casting machine, wherein a cleaning component for cleaning the upper mold is provided at the middle of the bottom surface of the aluminum ingot continuous casting machine, and the cleaning component comprises: a support frame, a brush roller mechanism, a collecting component, a cleaning mechanism, a demoulding agent mechanism, and an adjusting mechanism. The present invention sprays a cleaning liquid on the mold cavity after demoulding through the cleaning mechanism, and then cooperates with the brush roller mechanism to perform a better cleaning operation on the mold in continuous operation, without manual cleaning, and does not affect the continuous operation of the aluminum ingot continuous casting machine.

The utility model relates to the technical field of separation and purification, in particular to glycyrrhiza glabra active ingredient multistage membrane separation and purification equipment which comprises a main body, a separation mechanism is mounted in the main body, a driving mechanism is mounted on the side edge of the main body, a filtering mechanism is mounted at the bottom of the main body, and the main body comprises a centrifugal chamber. The outer surface of the centrifugal chamber is fixedly connected with a motor chamber, the separating mechanism comprises a separating cover, the outer surface of the separating cover is fixedly connected with a gear ring, the driving mechanism comprises a motor, the output end of the motor is fixedly connected with a rotating shaft, the top of the rotating shaft is fixedly connected with a gear, and the filtering mechanism comprises a filtering chamber. A first filter membrane is mounted in the filter chamber, and a second filter membrane is mounted in the filter chamber. The utility model provides the multi-stage membrane separation and purification equipment which can be used for collecting filtered and separated residues and can be used for quickly treating the residues.

The utility model discloses a biogas desulfurization tank capable of reducing residual sulfur-containing substances, which belongs to the technical field of desulfurization tanks, aims to solve the problems that environmental pollution is easily caused and resource waste is increased, and comprises a desulfurization tank, support legs are fixedly mounted at the bottom of the desulfurization tank, a desulfurization chamber is arranged in the desulfurization tank, a partition plate is mounted at the upper part of the desulfurization chamber, and a gas inlet is formed in the lower part of the desulfurization chamber. A gas inlet pipe is fixedly connected to the bottom end of the desulfurization tank, a gas outlet pipe is fixedly connected to the top end of the desulfurization tank, a water outlet valve is fixedly connected to the bottom of the desulfurization tank, a connecting pipe is mounted at the lower part of the water outlet valve, a filtering mechanism is mounted at the other end of the connecting pipe, and a water storage tank is arranged on the right side of the filtering mechanism; the water storage tank is fixedly connected with a circulating pipe; according to the utility model, through the arranged filtering mechanism, liquid water can be filtered after sulfur-containing substances in the desulfurization tank are cleaned, so that the liquid water can be reutilized, meanwhile, the liquid water is prevented from being discharged to influence the environment, and the resource waste is reduced.

A substrate processing apparatus for processing a substrate, the substrate processing apparatus including: a holding and rotating portion capable of holding and rotating the substrate; a supply unit including at least one gas nozzle capable of supplying an inert gas to the substrate to which the developer has been supplied, and at least one rinsing nozzle capable of supplying a rinsing liquid to the substrate at a discharge position provided on an outer peripheral side of a gas supply position of the gas nozzle; and a control unit that, while continuously discharging the inert gas from the gas nozzle, moves the discharge position of the rinsing liquid from the rinsing nozzle in the outer circumferential direction from the center of the substrate, moves the gas-liquid interface formed by the inert gas and the rinsing liquid in the outer circumferential direction from the center, and controls the discharge position of the rinsing liquid from the rinsing nozzle in the outer circumferential direction from the center of the substrate. When the rinsing nozzle moves from the center side to the outer peripheral side of the substrate, the direction of the rinsing liquid discharged from the rinsing nozzle is switched from the direction along the rotation direction of the substrate to the direction along the radial direction of the substrate.

The invention discloses a process method for preparing silicon-steel-grade magnesium oxide from dolomite, which belongs to the technical field of magnesium oxide preparation and comprises the following steps of: crushing and calcining the dolomite serving as a raw material, and sequentially performing primary hydration, secondary hydration, magnesium chloride cleaning, carbonization and pyrolytic reaction on the obtained lightly-calcined dolomite powder to obtain the silicon-steel-grade magnesium oxide. And calcining the obtained magnesium carbonate to obtain the silicon steel grade magnesium oxide. According to the method, dolomite is taken as a raw material, and silicon steel grade magnesium oxide with relatively high purity is extracted under specific hydration conditions and carbonization conditions; the silicon steel grade magnesium oxide prepared by the process has the advantages of high purity, low cost and few residues.

The invention relates to the field of inorganic materials, in particular to a preparation method and application of superfine potassium perchlorate. The preparation method comprises the following steps: adding a potassium chloride aqueous solution into an oil phase containing a sulfonate type gemini surfactant to obtain a microemulsion A; adding a sodium perchlorate aqueous solution into the oil phase containing the sulfonate type gemini surfactant to obtain a microemulsion B; the microemulsion A and the microemulsion B are added into an organic solvent at the same time, centrifugation is carried out after constant-temperature reaction is carried out for 1-10 h at the temperature of 50-100 DEG C, a product is collected, washed and dried, and the potassium perchlorate with the hollow rod-shaped structure is prepared through the combination of a microemulsion method and a sulfonate type gemini surfactant. The method has wide application prospects in the fields of military affairs and civil rescue as a smoke agent oxidizing agent.

The purpose of the present invention is to provide a high-sensitivity positive photosensitive resin composition which has a small amount of film reduction during alkali development and is capable of shortening the exposure time. The present invention is a positive photosensitive resin composition containing a heat-resistant resin containing a nitrogen atom and a photoacid generator (B), the resin (A) containing a constituent unit represented by formula (1), and the fluorine atom content in the whole resin being 15 mass% or less, with the total amount of the whole resin contained in the composition being 100 mass%. (In formula (1), R1 represents a trivalent to 12valent organic group having 3 to 30 carbon atoms, and R2 represents a monovalent acid-decomposable group having 3 to 20 carbon atoms; m represents an integer of 0-4; n represents an integer of 1-4; * represents a bonding site, and a and b each independently represent an integer of 1 or 2. > # imgabs0 #

The utility model provides a laser plate splitting device suitable for a light source plate group. The laser plate splitting device comprises a rack; a laser cutting mechanism; the positioning mechanism is arranged at the top of the rack, the positioning mechanism comprises a base driven by the transverse movement driving device to transversely move, a supporting plate installed above the base and material pressing assemblies symmetrically arranged on the two sides of the supporting plate, and a plurality of cutting holes corresponding to the multiple inner receiving materials are formed in the supporting plate; the two material pressing assemblies are driven by the alignment driving device to transversely move and driven by the material pressing driving device to ascend and descend, each material pressing assembly comprises a material pressing piece and an alignment piece which are stacked up and down, and the close ends of the two material pressing pieces protrude out of the close ends of the two alignment pieces. Therefore, the light source plate set is aligned with the supporting plate through the aligning part, then the light source plate set is integrally attached to the supporting plate in a flush mode through the material pressing part, accurate positioning can be achieved in laser cutting, the situations that internal receiving materials or edge materials are excessively left and the light source plates are cut by mistake are avoided, and the finished product quality of the light source plates is improved.

The invention discloses a system for synthesizing a catalyst for a silicon powder one-step method through a composite route and a method for preparing silicate ester through the silicon powder one-step method, the system comprises a plurality of liquid raw material storage tanks and a solid raw material storage tank, the liquid raw material storage tanks are used for storing a raw material solution or an azeotropic solvent, and the solid raw material storage tank is used for storing a powdery solid raw material; the bottoms of all the raw material storage tanks are connected with a feeding hole in the top of the reaction kettle through a discharging pipeline; the bottom of the reaction kettle is connected with a feeding hole of the finished product buffer tank through a pipeline; the bottom of the finished product buffer tank is connected with an application end through a pipeline; a mass flow meter is arranged on a discharge pipeline of each liquid raw material storage tank, and a mass sensor is arranged on each solid raw material storage tank; and each pipeline is provided with a valve. The catalyst preparation system and the methyl silicate production device are fused, so that the problems that the catalyst is easy to degrade and the production efficiency is low during long-distance transfer are solved. The activity regulation of the catalyst is realized, and different production requirements are met.

The utility model discloses a vibrating screen support with an adjusting function, the vibrating screen support comprises a support frame arranged at the bottom of a screen part, the support frame comprises shaking parts and a top connecting piece, the shaking parts are symmetrically arranged on two sides of the bottom of the support frame; the shaking part comprises two supporting plates welded to the bottom of the supporting frame, vertical cylinders fixedly arranged on the tops of the supporting plates and shaking springs welded to the interiors of the vertical cylinders. The top connecting piece is arranged above the shaking part, and the shaking spring is used for enabling the screen part to hit the top connecting piece to generate shaking. According to the vibrating screen, the supporting frame, the screen part, the vibrating part and the abutting part are arranged, the vibrating part can abut against the screen part through the abutting part when the screen part vibrates for screening, the vibrating effect of the screen part is improved, and the probability that the interior of the screen part is blocked is reduced; and by arranging the vertical cylinder, the shielding plate and the connecting plate, the shielding plate can shield the vertical cylinder during use, the possibility that residues appear in the vertical cylinder is reduced, and the probability of idle running of the shaking spring is reduced.

The invention relates to the technical field of treatment of infertility, in particular to a traditional Chinese medicine for treating infertility. The traditional Chinese medicine is prepared from the following materials by weight: 10-30 g of radix rehmanniae, 5-30 g of herba epimedii, 20-50 g of rhizoma curculiginis, 6-36 g of angelica sinensis, 20-55 g of radix paeoniae alba, 3-21 g of ligusticum wallichii, 10-50 g of astragalus membranaceus, 6-42 g of peach kernel, 5-30 g of herba lycopi, 2-20 g of medlar, 6-18 g of pangolin, 20-60 g of radix rehmanniae, 4-24 g of rhizoma cyperi, 7-35 g of schisandra chinensis and 3-21 g of lindera aggregata. The invention relates to a preparation method of a traditional Chinese medicine for treating infertility. The preparation method comprises the following steps: preparing required traditional Chinese medicinal materials according to a formula; putting the cleaned medicinal materials into a medicine decocting pot; the medicine residues are filtered; taking according to the dosage and the taking time; and recording the medicine taking time, dosage and medicine taking feeling of each time. By means of double filtration of liquid medicine, the taste of the liquid medicine can be better, medicine residues can be reduced, and the medicine property of medicine is higher.

The utility model discloses a cleaning device for medicinal material production, the cleaning device comprises a cleaning box, a support assembly, a scrubbing assembly, a connecting rod and a scrubbing roller, the support assembly is fixedly arranged at the bottom end of the inner side of the cleaning box, the scrubbing assembly is connected above the support assembly in a sliding manner, and the scrubbing assembly moves back and forth at the top end of the support assembly; the connecting rod is arranged on one side of the scrubbing assembly, one end of the scrubbing roller is rotationally connected with one end of the connecting rod, the outer side wall of the scrubbing roller makes contact with the top end of the cleaning box, and the end, away from the scrubbing roller, of the connecting rod is rotationally connected with a rotating rod. The scrubbing assembly arranged on the inner side of the cleaning box drives the scrubbing roller to rub and scrub above the supporting assembly, Chinese herbal medicine plants placed on the inner side of the cleaning box are scrubbed, in this way, the Chinese herbal medicine plants can be washed clean as much as possible, residues generated in the later slicing and drying process of the Chinese herbal medicine plants are reduced, and the yield of the Chinese herbal medicine plants is improved. Residues can be prevented from affecting the efficacy of Chinese herbal medicines.

The blending equipment is characterized in that the middle upper part of a barrel body is of a vertical cylindrical structure with a semi-closed top end, the bottom of the barrel body is in a hemispherical shell shape, the height of a junction part of transition from the middle upper part to the bottom of the barrel body is called point a, and the height of the lowest point of the inner wall of the barrel body is called point b; the top end of the barrel body is coaxially and fixedly communicated with a vertical inner supporting barrel, the inner supporting barrel is in threaded connection with a vertical mounting cover, and a vertical double-shaft motor is fixed to the top end of the mounting cover. The double-shaft motor is controlled to rotate, so that the upper connecting piece and the lower connecting piece can rotate, essence and spices in the barrel body can be stirred and blended by utilizing the main stirring plate and the auxiliary stirring plate, and the lower connecting piece can be kept at a certain height by utilizing the matching of a limiting bolt and a limiting groove; therefore, the stirring and blending effect on the flavors and fragrances at the bottom of the barrel body is guaranteed, and the inner wall of the barrel body cannot be abraded by all parts during stirring and blending.

A semiconductor structure and a method for forming the same, the method comprising: providing a substrate, the substrate comprising a first region and a second region, the first region having a first metal structure, the second region having a second metal structure; forming a device layer on the surface of the first metal structure and the surface of the second metal structure; forming a first through hole in the device layer of the first region, and forming a second through hole in the device layer of the second region; using a selective metal growth process to form a first plug in the first through hole, and forming a second plug in the second through hole. The semiconductor structure and the method for forming the same can improve the performance of the semiconductor structure.

The invention discloses an on-line blending-free variable-viscosity high-resistance-reduction retarded acid, and according to an on-line blending-free variable-viscosity high-resistance-reduction retarded acid system provided by the invention, the performance of an acid solution can be changed by changing the dosage of a medicament, and the preparation in advance is not needed. The film coating agent can form an adsorption film on the surface of the rock, and the existence of the adsorption film blocks the contact between H < + > and the rock, so that the acid-rock reaction rate is slowed down. In addition, the retarding agent also has multiple composite retarding performance, the characteristics of foam retarding acid and gelling retarding acid are combined, and the rate of acid-rock reaction is greatly reduced under the double retarding action of tackifying retarding of the multi-effect agent and blocking retarding of the film coating agent. In addition to a good tackifying effect, the tackifying agent also has excellent resistance reducing performance and is multipurpose, and the dosage and types of additives are reduced. Meanwhile, the resistance reduction rate of the system reaches 85% or above and is far better than 70% of that of a traditional system.

The utility model relates to the technical field of liquid fertilizer mixing and discharging, in particular to liquid fertilizer mixing and discharging equipment for saline-alkali soil, which comprises a box body and a mixing component, the mixing component comprises a stirring unit, a pump body, a conveying pipe, a crushing and filtering tank, a rotating unit, a plurality of blades, a filtering plate and a plurality of bolts, a filter plate is installed through bolts, a stirring unit is started, liquid fertilizer in a box body is mixed and prepared, then a pump body is started, the liquid fertilizer is pumped into a smashing and filtering groove through a pipeline, at the moment, a rotating unit is started, blades are driven to rotate, particles in the liquid fertilizer are smashed and stirred, and then the particles are filtered through the filter plate. And stubborn particles which cannot be crushed by the blade are filtered, so that residues in the mixed and discharged liquid fertilizer are less, the particles are obviously reduced, the condition that the particles in the liquid fertilizer are too many and too large is greatly reduced, and the absorption efficiency is improved.

The invention discloses an oxide layer polishing solution and application thereof. The oxide layer polishing solution comprises the following components in percentage by mass: 10%-20% of a grinding agent, 0.2%-1% of a pH regulator, 0.01%-0.05% of an auxiliary agent and deionized water, wherein the auxiliary agent is a compound containing a conjugated structure and containing amino and carboxyl. The chemical mechanical polishing solution for the oxide layer has the characteristics of high polishing rate, few corrosion pits, few residues of particles and metal ions and the like.

The utility model discloses high-digestibility pet food formula mixing equipment, which relates to the technical field of pet food processing, and comprises a mixing cylinder, the top end of the mixing cylinder is fixedly connected with a fixed frame, and the top of the fixed frame is provided with a movable mechanism. The raw materials are effectively prevented from being agglomerated or layered due to single-direction movement in the mixing process, various raw materials in the mixing barrel can be uniformly distributed along with periodic change of the stirring direction, the mixing effect is remarkably improved, the mixing time is shortened, and the overall uniformity and quality are improved. Residues in the equipment can be reduced, the cleaning process is simplified, the service life of the equipment is prolonged, the maintenance frequency is reduced, and high-quality and uniform production of pet food is ensured through the efficient and stable stirring mode.

The utility model discloses a mixer for production of hydroxypropyl methyl cellulose, and relates to the technical field of production of hydroxypropyl methyl cellulose. The device comprises a storage plate, the bottom of the storage plate is fixedly connected with a blocking box, the bottom of the blocking box is fixedly connected with a motor, the output end of the motor is fixedly connected with an inner shaft, the outer surface of the inner shaft is fixedly connected with a first rotating disc, the top of the first rotating disc is fixedly connected with a first gear ring, and the inner wall of the first gear ring is connected with a first gear in a meshed mode. According to the stirring device, the inner shaft and the sleeve shaft are arranged, specifically, the motor is started, the motor drives the inner shaft to rotate, the inner shaft drives the sleeve shaft to rotate, the inner shaft drives the stirring blade I and the stirring rod I to rotate together, and the sleeve shaft drives the stirring blade II and the stirring rod II to rotate together, so that attention needs to be paid to that the rotating directions of the inner shaft and the sleeve shaft are opposite; by means of the design, materials can be stirred and mixed more evenly, the mixing efficiency can be improved, and the waiting time of workers is saved.

The invention discloses a preparation method of lithium sulfide, a solid-state electrolyte and a solid-state battery, the lithium sulfide is used for preparing the solid-state electrolyte, and the preparation method comprises the following steps: uniformly mixing lithium sulfate, an organic carbon source and a high-molecular polymer in a solvent to obtain a mixed solution; wherein the mass ratio of the lithium sulfate to the organic carbon source is 1: (0.7-1), and the mass ratio of the organic carbon source to the high-molecular polymer is (0.7-1): (0.1-2.5); the ratio of the mass sum of the residual carbon amount of the organic carbon source and the residual carbon amount of the high-molecular polymer to the mass of the lithium sulfate is (0.2-0.25): 1; carrying out spray drying on the mixed solution to obtain a precursor material; and sintering the precursor material to obtain the product lithium sulfide. The sulfide solid electrolyte prepared by the preparation method is high in purity and low in carbon impurity content.

The invention relates to the field of inorganic materials, and in particular to a method for preparing ultrafine potassium perchlorate and an application thereof. A potassium chloride aqueous solution is added to an oil phase containing a sulfonate type gemini surfactant to obtain a microemulsion A; a sodium perchlorate aqueous solution is added to an oil phase containing a sulfonate type gemini surfactant to obtain a microemulsion B; the microemulsion A and the microemulsion B are simultaneously added to an organic solvent, reacted at a constant temperature of 50-100 DEG C for 1-10 hours, and then centrifuged, and the product is collected, washed, and dried. The method prepares potassium perchlorate with a hollow rod-shaped structure by combining a microemulsion method with a sulfonate type gemini surfactant, and the potassium perchlorate is used as a smoke generator oxidant and has broad application prospects in the military and civil rescue fields.

The invention relates to a preparation method of a slow-release solid acid rod for oil field plug removal operation, and belongs to the technical field of oil field chemistry. The preparation method comprises the following steps: mixing water-soluble epoxy resin, water-insoluble epoxy resin, anhydride monomers, organic acid monomers and sulfamic acid to prepare a prepolymer, and on the basis, further reacting at high temperature to generate an esterification product until the esterification product is completely cured, thereby preparing the slow-release solid acid rod. A result test shows that the prepared slow-release solid acid rod has excellent slow-release and dissolving properties. The process for preparing the slow-release solid acid rod is simple, and the slow-release solid acid rod is convenient to transport and use and has a wide application prospect in oil field plug removal operation.