200results about How to "Small particles" patented technology

The invention provides a preparation method of calcium-modified ferrihydrite and application of the calcium-modified ferrihydrite in improvement of a soil structure, and belongs to the technical field of soil structure improvement. The preparation method of the modified ferrihydrite comprises the following steps: gradually adding a sodium hydroxide solution into a ferric trichloride solution, and stirring and mixing until the pH value of a suspension reaches neutral; aging the suspension at room temperature for 12 hours, centrifuging to remove supernate, and washing the synthesized ferrihydrite with pure water for 2-3 times; then adding a calcium chloride solution for salt washing for 2-3 times so as to fully replace sodium ions on the surface of ferrihydrite into calcium ions; and washing with pure water for 2-3 times to obtain the calcium modified ferrihydrite. The calcium modified ferrihydrite provided by the invention eliminates the influence of dispersive sodium ions or potassium ions in ferrihydrite synthesized by a traditional method, is a nanoscale weak crystalline mineral, has the effect of rapidly improving the stability of soil aggregates, can rapidly aggregate soil particles after being applied to soil, effectively enhances the structural stability of the soil, and improves the soil quality. Therefore, good materials and means can be provided for soil structure improvement.

The utility model belongs to the technical field of atomizers, and discloses an atomizing nozzle and an atomizer, the atomizing nozzle comprises a nozzle shell and a nozzle main body, the nozzle shell is provided with an atomizing cavity, an atomizing hole communicated with the atomizing cavity and the outside, and a vent hole communicated with the atomizing cavity and an air source; the first end of the nozzle body is arranged in the atomization cavity, a flow channel penetrating through the nozzle body is formed in the nozzle body, a liquid outlet of the flow channel is formed in the first end of the nozzle body and right faces the atomization hole, and a plurality of flow guide grooves are formed in the first end of the nozzle body at intervals in the circumferential direction. The multiple flow guide grooves extend to the first end face of the nozzle body, the extension lines of the flow guide grooves intersect at a point a, the first end face of the nozzle body is matched with the inner surface of the nozzle shell to form flow guide gaps, and the extension lines of the flow guide gaps intersect at a point b. The point a and the point b are not overlapped. The atomizing nozzle can atomize a medium for three times, and the atomizing effect is good.

The invention relates to a forging heat treatment process for an ultralow-temperature high-strength austenitic stainless steel forge piece. The forging heat treatment process comprises the following steps that S1, raw materials are smelted; s2, performing high-temperature diffusion annealing on the raw materials; step S3, forging: (1) heating for the first time, lightly pressing and rounding a steel ingot at the final forging temperature of more than or equal to 950 DEG C; (2) secondary heating is conducted, the steel ingot is upset and drawn out, and the finish forging temperature is larger than or equal to 900 DEG C; (3) the third heating number is carried out, the steel ingot is upset and drawn out, and the finish forging temperature is larger than or equal to 850 DEG C; s4, heat treatment: (1) water cooling treatment after forging; (2) performing rough machining on the forge piece; (3) carrying out solution treatment, wherein the solution temperature range is 1050-1120 DEG C; the forging method has the advantages that the internal quality of the forge piece is improved, grains are refined, non-uniformity is eliminated, and the overall mechanical performance is improved by improving the components and the structure of the steel ingot and the forging process.

The invention relates to the technical field of agricultural planting, in particular to a fixed-point seeding device for agricultural planting, which comprises a seeding bearing box, a bearing frame is fixedly mounted at the front end of the seeding bearing box, a seeding material pipe is fixedly mounted at the front end of the bottom of the seeding bearing box, and a plowshare is fixedly connected to the bottom end of the seeding material pipe. A drive dibble seeding assembly is arranged inside and outside the seeding pipe and the bearing frame; the drive dibble seeding assembly comprises an insertion hole formed in the plowshare, a fixed-point seeding sleeve is slidably mounted in the insertion hole, an insertion shaft is rotatably arranged at the upper end of the interior of the fixed-point seeding sleeve in a penetrating manner, a driven rod is fixedly mounted in the middle of the insertion shaft, and a drive rod is fixedly connected to the top of the driven rod. When seeds in the fixed-point seeding sleeve fall into a furrow, the outer part is blocked by the fixed-point seeding sleeve, so that the problem that the planted seeds are excessively dispersed when falling during seeding is solved.

The medium-temperature radial forging method comprises the steps that pretreatment is conducted, specifically, a niobium-tungsten alloy extrusion bar blank is heated for 60-180 minutes at the temperature of 750-950 DEG C, rapid forging and straightening are conducted, and a medium-temperature radial forging bar blank is obtained and annealed for 60-120 minutes at the temperature of 1250-1450 DEG C; medium-temperature radial forging is conducted, specifically, a two-step method is adopted, in the first step, a bar blank is preheated to 80-100 DEG C and coated with Ta1350 high-temperature glass powder, heat preservation is conducted for 90-180 minutes at the temperature of 1050-1150 DEG C, and the bar blank is forged into a bar with the diameter of 70 + / -1 mm in the mode that the diameter is reduced by 7-10 mm every time; and in the second step, the heating and coating processes are repeated, the diameter is reduced by 5-7 mm every time, and the bar with the required specification is manufactured. By optimizing the medium-temperature forging and annealing process, the fine grain structure is controlled, the high-temperature mechanical property, creep resistance and oxidation resistance of the material are improved, and the material is suitable for aerospace engines and other high-temperature and high-pressure scenes. Compared with a traditional method, the technology improves the yield, shortens the production period, reduces the labor intensity, is suitable for large-scale production, reduces surface air suction, oxidation and burning loss, and improves the production efficiency and the finished product quality.

The invention belongs to the technical field of superfine powder preparation and lithium battery materials, and particularly relates to monoclinic-phase zirconium oxide nano powder as well as a preparation method and application thereof. The preparation method comprises the following steps: adding zirconium oxychloride octahydrate into water for dissolving to obtain a zirconium oxychloride aqueous solution, then putting the zirconium oxychloride aqueous solution into a hydrothermal reaction kettle, heating to 140-160 DEG C for hydrothermal reaction, cooling to room temperature after the reaction is completed, and standing for precipitation; then adding ammonia water to carry out ammonolysis reaction, standing and aging, completely precipitating residual zirconium ions, separating the precipitate, washing and drying to obtain a zirconium hydroxide precursor; and finally, carrying out heat preservation calcination treatment at 850-950 DEG C in an air environment to obtain the monoclinic phase zirconium oxide nano powder. The preparation method is simple in preparation process, and toxic and harmful substances are not introduced. The obtained nano ZrO2 powder has the advantages of accurate chemical composition, small powder particle size and low Cl <-> content, and meets the specification requirements of lithium battery positive electrode material additives.

The invention belongs to the technical field of novel biological building materials, and particularly relates to a method for reinforcing sandy soil by utilizing cement hydration and biological cement bonding, which comprises the following steps: inoculating urease bacteria into a culture medium for culturing to obtain a bacteria solution; preparing a cementing liquid matched with the urease bacteria; portland cement and sand are evenly stirred and filled into a mold, and a sand column blank is obtained; and spraying the bacterial liquid and the cementing liquid from the top of the sand column blank in turn to carry out a microbial mineralization reaction so as to obtain the molded sand column. According to the invention, the hydration effect of Portland cement is cooperated with biological cement to fully fill gaps of sand grains, so that a high-strength composite cementing system is formed. According to the method, the compressive strength of the sandy soil is remarkably improved, particularly, the defect that the strength of the sandy soil subjected to cementation treatment through a single biological grouting method is insufficient can be overcome, powerful guarantee is provided for safety and stability in the fields of foundation reinforcement, structural defect repair and the like, and remarkable academic innovation and engineering application value are achieved.

The invention discloses a preparation method of a metal oxide coated high-nickel ternary positive electrode material, which comprises the following steps of: dissolving a solution containing coated metal in an organic solvent under a stirring condition to obtain a solution containing metal oxide; adding the high-nickel ternary material powder into an organic solvent under ultrasonic operation to obtain a solution of the high-nickel ternary positive electrode material powder; dropwise adding the solution containing the metal oxide into the solution of the high-nickel ternary positive electrode material powder under ultrasonic operation to obtain a mixed solution; heating the mixed solution under a magnetic stirring condition to volatilize the solvent, collecting the material, and drying in a vacuum drying oven; and calcining the dried material in pure oxygen to obtain the metal oxide coated high-nickel ternary positive electrode material. The electrochemical performance of the high-nickel ternary positive electrode material at low temperature can be effectively improved, specifically, the surface of the positive electrode is regulated and controlled, the contact area of the surface of the ternary positive electrode material and electrolyte at low temperature is reduced, so that side reaction is reduced, and meanwhile, the coating layer with certain mechanical strength can be formed in the long-term cycle process at low temperature, so that the electrochemical performance of the high-nickel ternary positive electrode material is improved. Positive electrode breakage is effectively reduced, and the cycling stability of the high-nickel ternary positive electrode at low temperature is effectively improved.

The invention discloses a method for preparing silicon carbide from a silicon waste material and a waste lithium ion battery graphite anode. The method specifically comprises the following steps: (1) respectively carrying out ball milling and mixing on the diamond wire cutting silicon waste material and the crushed and screened waste lithium ion battery graphite anode; (2) high-temperature smelting, ball milling and roasting; and (3) placing in an acid, stirring, leaching, centrifuging, washing, drying and ball-milling to obtain the high-efficiency leaching agent. According to the method, the diamond wire cutting silicon waste and the waste lithium ion battery graphite anode are used as preparation raw materials, silicon carbide is prepared and purified through the processes of ball milling, material mixing, smelting, roasting, acid leaching, centrifuging, drying and the like, and finally high-purity nanoscale silicon carbide particles are obtained. The recycling of the diamond wire cutting silicon waste and the graphite anode of the waste lithium ion battery not only can reduce resource waste and environmental pollution and improve the utilization rate of the waste, but also can generate considerable economic benefits.

The crushing device comprises a machine body, a collecting hopper is arranged at the top end of the machine body, a collecting piece for collecting medicinal raw materials is arranged at the bottom end of the machine body, a crushing mechanism is arranged in the machine body, and the crushing mechanism comprises a crushing assembly, a rough grinding assembly and a fine grinding assembly; the crushing assembly, the rough grinding assembly and the fine grinding assembly are sequentially distributed in the machine body from top to bottom, the crushing assembly is used for preliminarily crushing medicinal raw materials, the fine grinding assembly is used for finely grinding the medicinal raw materials, the rough grinding assembly comprises two grinding blocks, a moving rod and a dull polish plate, and the moving rod is connected to the ends of the grinding blocks; the two grinding blocks are oppositely arranged, the two grinding plates are connected to the two opposite side walls of the two grinding blocks, the grinding plates are obliquely arranged, the distance between the two grinding plates is gradually reduced from top to bottom as a reference direction, and a driving assembly enabling the two grinding blocks to move in a staggered mode is arranged on the machine body. The crushing device has the effect of reducing the granularity of the crushing device.

The invention relates to the field of glass chemical strengthening, and discloses a molten salt purifying agent and a preparation method and application thereof.The molten salt purifying agent is prepared from, by mass, 35%-65% of SiO2, 5%-40% of Al2O3, 0-5% of MgO, 20%-45% of Na2O and 0.01%-2% of CeO2; wherein the mass ratio of the (MgO + CeO2) to the (SiO2 + Al2O3) is 0.001 to 0.1. According to the molten salt purifying agent provided by the invention, SiO2, Al2O3, MgO, Na2O and CeO2 in a certain proportion are added, the proportion of MgO + CeO2 to SiO2 + Al2O3 is strictly controlled in a specific range, and the effect of each component in purifying molten salt is fully utilized, so that the molten salt purifying agent is high in purification reaction activity and purification efficiency, the phenomena of softening and purification activity failure of the molten salt purifying agent in the molten salt can be avoided, and the service life of the molten salt purifying agent is prolonged. The stability and the service life of the molten salt purifying agent are improved, the proportion of the molten salt is not affected, the situation that alkaline matter is attached to the surface of glass to affect the surface flatness of the glass is avoided, the service life of the molten salt can be prolonged, and the consistency of the glass strengthening performance is improved.

The invention provides freeze-dried fresh dendrobium huoshanense powder and a preparation process thereof, and relates to the technical field of freeze-dried fresh dendrobium huoshanense powder. The preparation process of the freeze-dried fresh dendrobium huoshanense powder comprises the following steps: S1, material selection: selecting and taking dendrobium huoshanense as a raw material, S2, cleaning: cleaning and drying the raw material in the S1, S3, cutting: cutting the raw material in the S2, S4, crushing and pulping: pulping the raw material in the S3 and mixing the pulped raw material with water, S5, stirring and mixing: stirring the pulp in the S4, and performing freeze-drying to obtain the freeze-dried fresh dendrobium huoshanense powder. And S6, freeze-drying and crushing: freeze-drying the slurry obtained in the step S5, and crushing the freeze-dried slurry into powder. The dendrobium huoshanense freeze-dried fresh powder is cut, pulped and freeze-dried and crushed, so that the dendrobium huoshanense freeze-dried fresh powder is finer and smaller in particle size, tastes better when being eaten by old people, is improved in taste and is convenient for the old people to eat.

The invention relates to the technical field of preparation of solid beverages, discloses a preparation method of a ketogenic solid beverage, and provides active high-protein cream powder, protein is modified through hydroxypropyl distarch sodium phosphate under the action of thermal induction and is covalently grafted with fructo-oligosaccharide, a structure with relatively high stability is formed after grafting, and the ketogenic solid beverage is prepared. And protein molecules are not easy to gather together. According to the present invention, the nutrition level of the product is further enriched, the absorption of the nutrition of each component by the human body is easily achieved, the malnutrition problem caused by the ketogenic diet is avoided, the unpleasant taste caused by the addition of fat and protein is avoided through the reasonable matching of the components, and the brewing property of the solid beverage is improved through the improvement of the active high-protein cream powder; the obtained ketogenic solid beverage has the characteristics of balanced nutrition, good flavor, stable property and easiness in storage.

The utility model relates to the technical field of alumina micro powder production, and discloses a drying machine for alumina micro powder production, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is arranged above the main body mechanism, the main body mechanism comprises a device main body, a control panel, a control button, a drying cabin and a heater, the control panel is fixedly installed at the left end of the device body, the control button is movably installed at the left end of the device body, and the drying cabin is fixedly arranged at the lower end of the inner side of the device body. According to the drying machine for aluminum oxide micro powder production, a driving motor is started through a control panel, a transmission rod drives a stirring rod to rotate, aluminum oxide micro powder in the drying cabin is stirred, meanwhile, a heater is started to heat the aluminum oxide micro powder in the drying cabin, the aluminum oxide micro powder is turned over through the stirring rod, and the drying efficiency is improved. The aluminum oxide micro powder can be heated more uniformly, and the heated aluminum oxide micro powder inside can be taken out by opening the movable cabinet door after heating is completed.

The utility model relates to a vertical roller flour mill which comprises a roller flour mill main machine consisting of an upper machine body and a lower machine body, a main shaft component positioned in the lower machine body and a power mechanism for driving the main shaft component to rotate, the main shaft component comprises a main shaft, an airflow shunting center disc capable of synchronously rotating along with the main shaft, a wear-resistant curve large ring, a center disc mounting seat and a lower air inlet duct, the airflow shunting center disc is mounted on the center disc mounting seat, the center disc mounting seat is mounted on the main shaft, and the lower end of the center disc mounting seat and the lower air inlet duct are mounted together; the wear-resistant curve large ring is mounted on the central disc mounting seat; an air duct is mounted on the upper machine body, and after external airflow enters the lower machine body through the air duct, most airflow blows fine powder into the upper machine body; the utility model has the advantages of reasonable structure, simple and convenient operation, double gas circuit structure, lower end gas inlet to avoid material accumulation, high efficiency and energy saving.

The invention provides a method for preparing low-sulfate rare earth carbonate from a low-concentration rare earth sulfate solution, and belongs to the technical field of rare earth hydrometallurgy. The method comprises the following steps: adding a low-sulfate rare earth carbonate seed crystal into an ammonium bicarbonate solution to obtain a mixed solution, dropwise adding a low-concentration rare earth sulfate solution into the mixed solution, and reacting to obtain the low-sulfate rare earth carbonate after the reaction endpoint is reached. The low-sulfate rare earth carbonate is synthesized through direct precipitation, the problem that the content of sulfate impurities in the low-concentration rare earth sulfate solution ammonium bicarbonate precipitation method is high is solved, and the problems that in the extraction method transformation process, an organic extraction agent is high in cost, large in loss and the like are solved. The synthesized rare earth carbonate has the advantages of small particles, good dispersity and the like, and the content of SO4 < 2-> in the obtained rare earth carbonate is 1t; and 0.5 wt%.

The invention relates to the technical field of ceramic cutters, in particular to a SiC whisker toughened aluminum oxide ceramic cutter and a preparation method thereof. The invention relates to a SiC whisker toughened aluminum oxide ceramic cutting tool. The SiC whisker toughened aluminum oxide ceramic cutting tool consists of aluminum oxide ceramic powder, silicon carbide whiskers and toughening auxiliary powder, the toughening auxiliary powder is prepared from the following raw materials in parts by weight: 20 to 30 parts of ferrotitanium slag and 6 to 10 parts of chromium sesquioxide. The SiC whisker toughened aluminum oxide ceramic cutter provided by the invention is compact in structure and has more excellent fracture toughness at the same time.

The invention provides a preparation method of liquid butyl regenerated rubber, and belongs to the field of production of regenerated rubber materials. According to the method, the waste butyl rubber particles, the rubber regenerant and the softener are mixed in an internal mixer according to the mass ratio of 100: (3-10): (4-8), the liquid butyl regenerated rubber with the molecular weight being 9000-20000, the molecular weight distribution being 2-10 and the sol content being larger than 78% is prepared through the procedures of pre-depolymerization, depolymerization, cooling, filtering and the like, the technological process is simple, the cost is low, and the method is suitable for industrial production. The method has the advantages of high depolymerization degree, few impurities and good quality.

The invention discloses an iron-based MOFs composite electrode and application thereof. The preparation method comprises the following steps: firstly preparing Cu-coated Fe-ZIF powder in a coprecipitation manner, then preparing Fe2O3-coated Cu-coated Fe-ZIF powder by a hydrothermal reaction, step-by-step ultrasonic and vacuum arc method, and then fusing with S at high temperature by a hot melting method; and preparing the active material Fe2O3 (at) Cu (at) Fe-ZIF (at) S for the iron-based MOFs composite electrode. The Fe-ZIF material is selected as a metal frame to coat the surface of Cu, the Fe-ZIF material and Fe oxide are mixed, calcined and subjected to a direct-current vacuum arc method to synthesize the wooden-stick-shaped nanosphere particles, the defect concentration in a Fe2O3 structure can be effectively increased under the synergistic effect of the advantages of Cu-coated Fe-ZIF components, more loading space is provided for subsequent components such as sulfur, and the Fe-coated Fe-ZIF composite material has a good application prospect. The sulfur loading effect is improved, the sulfur utilization rate is improved, the volume change is relieved, and the battery performance is further improved.

The utility model discloses an anti-particle combination valve, which comprises a valve body, a valve core, a valve core and a valve core, the driving mechanism is connected to the side wall of the valve body; one end of the valve rod is connected with the driving mechanism; the valve element is arranged in the valve body and connected with the other end of the valve rod, when the valve rod is linked by the driving mechanism, the valve element is linked by the valve rod, the valve element moves in the valve body, and the gas channel is opened or closed; the protection piece is connected to the side wall of the valve body and arranged opposite to the driving mechanism, one end of the protection piece makes contact with the gas channel, and the valve element abuts against the protection piece when the gas channel is closed by the valve element; the protection piece is made of stainless steel; the part, making contact with the protection piece, of the valve element is made of stainless steel. Therefore, the technical problem that particles generated by contact friction between the valve element and the valve body pollute a vacuum system is solved.

The invention belongs to the field of chemical product purification, and particularly relates to a preparation device and method of electronic grade triethyl borate. The method specifically comprises the following steps: S1, adding ethanol and boric acid into a reactor for reaction to obtain a product, enabling the product to enter a product collecting tank, then enabling the product to enter a product separating tower from the product collecting tank to separate ethanol in the product to obtain a crude product triethyl borate, and enabling the ethanol to enter an ethanol recycling tank for recycling; and S2, dehydrating the crude product triethyl borate in the step S1, feeding the dehydrated crude product triethyl borate into a crude product collecting tank, feeding the dehydrated crude product triethyl borate into a light component removal tower to remove light components, feeding the dehydrated crude product triethyl borate into a heavy component removal tower to remove heavy components, and feeding electronic-grade triethyl borate into a product tank. Raw materials react to prepare a crude product, the crude product is collected and then introduced into a separation tower, ethanol is dehydrated and recycled at the top, and a triethyl borate crude product at the bottom is also dehydrated. After the crude product is subjected to primary filtration, impurities are removed through a light component removal tower and a heavy component removal tower to obtain a high-purity product, and after the product is subjected to secondary fine filtration, the electronic-grade high-purity standard is achieved, and the high-end application requirement is met.

The present invention provides a medical waste crushing and processing device and method, belonging to the technical field of medical waste processing. The medical waste crushing and processing device includes a base plate and a processing box fixedly installed on the top of the base plate, a discharge port is opened on one side outer wall of the processing box, an extrusion plate is slidably installed in the processing box, and a front baffle is slidably installed on one side inner wall of the processing box and near the discharge port. The medical waste crushing and processing method includes: T1: putting medical waste into the processing box; T2: starting the first hydraulic cylinder to run and closing the hopper sealing plate; T3: starting the first motor to run, driving the extrusion plate to approach the front baffle, squeezing out the air in the medical waste, and compacting the medical waste. The medical waste crushing and processing device and method provided by the present invention have the advantages of high crushing and processing efficiency, convenient secondary crushing of medical waste, and convenient and flexible use.

The present invention discloses a regenerated micro-powder improved soil-bentonite vertical anti-fouling isolation wall and a construction method thereof, including an isolation wall body, a guide wall and a steel pipe frame, wherein the steel pipe is arranged at the bottom of the isolation wall body. The method comprises: a, preparation of bentonite slurry; b, preparation of regenerated micro-powder of construction waste; c, construction of the guide wall; d, digging and grooving; e, preparation of the wall material of the isolation wall; f, making a bottom support plate and an inner insert plate; g, making a steel pipe frame; h, welding a bottom support plate; i, welding an inner insert plate; j, hanging and placing the steel pipe frame; k, hot-melt connection of the anti-seepage plate; l, backfilling of the wall material of the isolation wall; m, forming of the vertical anti-fouling isolation wall. The present invention can enhance the stability of the groove during the construction of the vertical anti-fouling isolation wall, that is, ensure the integrity of the wall body after the wall is formed, enhance the anti-seepage and anti-fouling performance of the vertical anti-fouling isolation wall, and at the same time, utilize the regenerated micro-powder of construction waste as the wall improvement material, which can optimize the mechanical properties and anti-seepage and anti-fouling performance of the wall body.

The utility model relates to equipment for producing activated carbon, in particular to a grinding device for producing the activated carbon, which comprises a rack, a blanking groove, a grinding cylinder, a circular ring cylinder, a first cylinder, a circular truncated cone cylinder, a second cylinder, a one-way conveying pipe, an air suction device and the like, the upper end of the rack is connected with the grinding cylinder, and the upper end of the grinding cylinder is connected with the blanking groove; annular cylinders are installed at the left end and the right end of the grinding cylinder correspondingly, first cylinders are connected to the sides, away from the grinding cylinder, of the two annular cylinders correspondingly, circular truncated cone cylinders are connected to the sides, away from the annular cylinders, of the two first cylinders correspondingly, second cylinders are connected to the sides, away from the first cylinders, of the two circular truncated cone cylinders correspondingly, and one-way conveying pipes are connected to the bottom ends of the second cylinders correspondingly. The grinding turntable and the grinding cylinder of the device are provided with concave-convex surfaces, so that activated carbon can be ground into finer powder, and meanwhile, the air suction devices are arranged on the left side and the right side of the device, so that blockage of the barrier net can be prevented.

The present application relates to the technical field of ceramic tools, and more specifically, it relates to a SiC whisker toughened alumina ceramic tool and a preparation method thereof. A SiC whisker toughened alumina ceramic tool, the SiC whisker toughened alumina ceramic tool is composed of alumina ceramic powder, silicon carbide whiskers and toughening auxiliary powder; the toughening auxiliary powder includes the following raw materials in parts by weight: 20-30 parts of ferro-titanium slag and 6-10 parts of chromium trioxide. The SiC whisker toughened alumina ceramic tool of the present application has a dense structure and has better fracture toughness.

The invention discloses Longshan lily bulbil polysaccharide as well as a preparation method and application thereof, and belongs to the technical field of plant extraction. In the polysaccharide, the total sugar content is greater than 94%, monosaccharide comprises mannose, rhamnose, glucose, galactose and galacturonic acid in a ratio of (5.12 to 5.48): (7.04 to 7.79): (61.55 to 62.38): (17.37 to 18.14): (7.28 to 7.91), and the weight-average molecular weight is 183916 to 184735 Da. The preparation method comprises the following steps: by taking Lilium brownii Bulb as a raw material, carrying out boiling water enzyme deactivation treatment, decolorizing and degreasing, extracting an alcohol insoluble substance with water, synchronously removing starch by using high-temperature-resistant amylase, carrying out microwave digestion on filter residues obtained after filtering by using a sodium hydroxide solution, dialyzing and extracting an extracting solution, and finally preparing the Lilium brownii Bulb polysaccharide with immunocompetence. The method can be applied to food or functional food or medicine, and provides a thought for high-value application of the Longshan lily.

The utility model relates to the related technical field of pharmaceutical equipment, one embodiment of the utility model provides raw material decoction piece homogenization treatment equipment for preparing nerve soothing granules, the raw material decoction piece homogenization treatment equipment comprises a mixing tank and a support, the mixing tank is arranged in the support, an overturning mixing assembly is arranged in the mixing tank and the support, and a feeding and discharging assembly is arranged at the bottom of the mixing tank and the support; the turnover mixing assembly comprises a pair of central shaft brackets, the central shaft brackets are respectively fixed on the two sides in the bracket, the mixing tank is rotatably connected to the pair of central shaft brackets in a sleeving manner, an outer gear is arranged outside the mixing tank, a driving motor is arranged on one side of the bracket, a driving gear is arranged at the output end of the driving motor, and the driving gear is meshed with the outer gear. By means of the technical scheme, the technical problems that in the prior art, due to the fact that traditional equipment is often difficult to rapidly and evenly mix the raw materials, part of the raw materials are not evenly distributed, some light medicinal materials can be gathered at the top of the equipment, and heavy medicinal materials are precipitated at the bottom are solved.

The invention discloses a sponge city water body purification device, and relates to the technical field of environmental science and engineering, the sponge city water body purification device comprises an ecological floating island, a water collection pipe and a treatment tank, a collection device, a treatment device and an auxiliary device are arranged below the ecological floating island, through the arrangement of the collection device, a culture plate is arranged on the ecological floating island to culture ecological plants, and the treatment device is arranged below the treatment tank; the ecological plants can directly or indirectly absorb and utilize soluble nitrogen, phosphorus and other nutrient substances in the water body, or convert the nutrient substances into non-toxic intermediate metabolites and store the intermediate metabolites in plant cells, so that the purpose of removing part of pollutants in the water is achieved, the water body decontaminated by the ecological plants can enter the water collecting pipe, and the water body is prevented from being polluted by the ecological plants. The workload and cost of subsequent purification treatment can be reduced through the flow discarding ball, meanwhile, the maintenance and management cost can be reduced, water flow entering the purification device can more uniformly pass through all parts of the purification device through the baffle rotating in a reciprocating mode, and the overall purification effect is improved.

The invention discloses a laying hen breeding water feeding device with a water circulation treatment function, and particularly relates to the technical field of laying hen breeding, the laying hen breeding water feeding device comprises a mute motor, the bottom end of the mute motor is fixedly connected with a transmission assembly, the bottom end of the transmission assembly is fixedly connected with a storage assembly, and the right side of the storage assembly is fixedly connected with a treatment assembly; the bottom end of the storage assembly is fixedly connected with a breeding assembly. According to the laying hen breeding water feeding device with the water circulation treatment function, the drainage directions of the two sliding blocks can be changed by pulling the two handles, so that circulating laying hen breeding water can be used for backwashing a filter screen, and further, when the two handles are arranged and pulled again, the filter screen can be washed by the filter screen, so that the laying hen breeding water can be fed back to the laying hen breeding water. The two rotating plates can be driven to be opened through the two nylon ropes, so that waste water after backwashing can be discharged out of the device, the situation that the filtering effect of the filter screen is affected by impurities can be avoided, and meanwhile the service life of the filter screen is prolonged.

The invention relates to a composite emulsifier suitable for emulsion explosives and a preparation method thereof, and belongs to the technical field of emulsifiers. The compound emulsifier is mainly prepared from the following raw materials: acrylic acid, triethylene tetramine, poly (isobutylene-alt-maleic anhydride), sorbitol, N-hydroxyethyl-ethylenediamine, hydrogen peroxide, vitamin C, nonylphenol polyoxyethylene ether (10), urea and sodium lauryl sulfonate. According to the invention, sorbitol, poly (isobutylene-alt-maleic anhydride) and N-hydroxyethyl-ethylenediamine are selected as main raw materials, so that the hydrophilicity of a system is increased, and the surface tension of the system is reduced by the intermediate material A synthesized from triethylene tetramine and acrylic acid, so that the finished emulsifier has an excellent emulsification effect. And nonylphenol polyoxyethylene ether (10), urea and sodium lauryl sulfonate are used for reducing a crystallization point and inhibiting crystal nucleus generation, and synergistic effects are realized, so that the emulsion explosive prepared from the compound emulsifier has excellent storage stability and is not easy to crystallize and harden.