460results about How to "Guaranteed to be environmentally friendly" patented technology

The invention provides an Internet-based intelligent mobile charging system and method. The system comprises a breakdown van APP, a charging breakdown van, a fault car APP and a rescue platform, wherein the breakdown van APP comprises a user module, an order module, a monitoring module and a communication module, the charging breakdown van comprises a controller, a GPS device, a DC charger, an AC charger and a metering module, the fault car APP comprises a user module, an order module, a payment module and a communication module, and the rescue platform comprises an access module, an order executing module, a vehicle screening module, a breakdown van monitoring module, a bill management module and a user certification module. The Internet-based intelligent mobile charging system can fulfill the one-key rescue function, improve the rescue speed, enhance vehicle dispatching accuracy and efficiency, completely avoid mandatory consumption and mandatory service, improve the transparency and timeliness of the rescue service, and improve service experience and service quality.

The invention belongs to the technical field of natural polymer modification and discloses a preparation method of a starch and fatty acid compound. The method comprises the following steps: adding de-ionized water into starch and balancing moisture in a closed container; carrying out heat treatment to obtain the starch subjected to wet and hot treatment; then adding a buffering solution to prepare a starch solution; after pre-heating, adding 2 to 5u / g pullulanase liquid to react for 4 to 5 hours; after carrying out enzyme deactivation, centrifuging and separating to obtain enzyme treatment modified starch; then stirring and gelatinizing the starch in a boiled water bath for 25 to 45 minutes and cooling to 60 to 90 DEG C to obtain gelatinized starch; then transferring the gelatinized starch into a homogenizing machine and adding fatty acid to carry out homogenization and mixing; and keeping the heat of the water bath to synthesize for 30 to 40 minutes to obtain the starch and fatty acid compound. According to the preparation method, a greener and more environment-friendly new way is provided for synthesizing the starch and fatty acid compound through wet and hot treatment and controlled enzymolysis treatment by adopting a gelatinizing method.

The invention relates to a nano SiO2 hybridized acrylic acid ester soap-free emulsion and a manufacturing method, wherein the nano SiO2 hybridized acrylic acid ester soap-free emulsion is prepared by the following components by weight: 5-20 parts of modified silica sol, 40-70 parts of deionized water, 20-50 parts of double bond containing polymerisable monomer, and 0.1-0.3 parts of initiator. An aqueous resin prepared by the invention has good water proofness, mechanical property and weatherability, can be used for preparing an aqueous woodenware paint, a construction anticorrosion paint and an anticorrosive paint with high ornamental feature.

The invention provides a method for the axial elastic force application connection of electrical connector contact pairs. The method adopts an elastic element to apply axial external force to a contact pair consisting of a contact piece A (1) and a contact piece B (2), so as to combine the two tightly, thereby forming the electric connection with lower conductive resistance. One end of the elastic element is in contact with an insulating base so as to turn into a relative fixed end; and the other end of the elastic element directly acts on a preset fixed end face of an electric conductor contact piece, and is a relative displacement end during axial force application. The contact pair is independently formed by the end planes of the two contact pieces with simple structure. As axial elastic connection can not be affected by shock or other external factors, the connection reliability is higher. The contact pair can be formed by a positive contact piece and a negative contact piece as well, which ensures that the radial and axial directions of the contact pair are uniform in stress and contact.

The invention discloses cigarette paper with low ignition tendency and a preparation method. The cigarette paper comprises common cigarette paper manufactured by a papermaking process; and a coating liquid film consisting of film forming agent, viscosity regulator and filler is printed on the inner surface of the common cigarette paper. The preparation method comprises the following steps of: (1) preparing the common cigarette paper of certain specification; (2) preparing the filler into 40 to 60 percent suspension, and stirring uniformly; (3) adding the viscosity regulator component into the (2) at normal temperature to prepare 2 to 4 mass percent aqueous solution, and stirring for 10 minutes; (4) adding the film forming agent component into the (3) at normal temperature to prepare 25 to 35 mass percent aqueous solution, and stirring for 20 minutes; and (5) adding the sizing material prepared in the (4) on the surface of the cigarette paper through a silk screen in certain interval by adopting a printing and coating mode. When the cigarette paper is burnt to a coated strip in the atmospheric environment, the cigarette has low extinguishing rate and even is not extinguished; and under the standard test condition, the filter paper of contact matrix has high extinguishing rate, and meanwhile, the cigarette paper has no obvious adverse effects on the cigarette smoke and the smoking quality.

The invention relates to a high-gradient magnetic selector, which comprises selecting ring, driver, mineral feeder, fine mineral discharger, and fine mineral collector, wherein the selecting ring comprises rotation ring, accumulation medium stack, upper magnetic pole, lower magnetic pole and active coil; the discharger comprises parallel hydraulic discharger and wind discharger at the outer side of rotation ring, while they are relative to the fine mineral collector at the inner side of rotation ring. The invention combines water washing and wind washing to effectively remove the magnetic particles on the magnetic collecting mediums, to improve the mineral discharge efficiency. The invention can save water resource and improve the mineral slurry density.

The invention is suitable for the field of dish-washing machines, and discloses a drying and dehumidifying structure for a dish-washing machine and the dish-washing machine. The drying and dehumidifying structure for the dish-washing machine comprises an inner container with a washing inner cavity and a semiconductor condensing assembly which is arranged on the inner container, wherein the semiconductor condensing assembly comprises a semiconductor refrigerating sheet which is arranged on the inner container in an inserting way, a power supply which is arranged outside the inner container and is electrically connected with the semiconductor refrigerating sheet, and a condensing cover which is arranged in the inner container and is enclosed into a condensing cavity together with the inner container; communication holes for communicating the washing inner cavity with the condensing cavity are formed in the condensing cover in a penetrating way; the semiconductor refrigerating sheet is provided with a refrigerating part and a heating part; the refrigerating part is inserted into the inner container and is accommodated in the condensing cavity; the heating part is arranged outside the inner container. At the drying stage of the dish-washing machine, the refrigerating part in the condensing cavity can be used for condensing vapor into water drops to be collected into the condensing cavity, so that the air humidity in the washing inner cavity is lowered effectively, and vapor is prevented from being condensed into water drops on tableware, and the drying performance of the dish-washing machine is enhanced.

The invention belongs to the field of synthetic leather, and provides carbon fiber modified non-solvent polyurethane surface layer resin for sports shoe leather. The resin is formed by mixing a component A and a component B according to mass percent being 2:1 to 1:2, wherein the component A comprises 5 to 15 parts of aliphatic diisocyanate, 50 to 60 parts of low polymer dihydric alcohol, 10 to 20 parts of organosilicone polyhydric alcohol, 3 to 10 parts of micromolecule dihydric alcohol, 0.5 to 5 parts of micromolecule trihydric alcohol, 0.1 to 1.5 parts of a catalyst, 0.5 to 2.5 parts of a light / heat stabilizer, 0.02 to 0.5 part of a flatting agent, 0.01 to 0.2 part of a defoamer, 0.1 to 0.5 part of a dehydrator, and 0.5 to 5.0 parts of carbon fiber; the component B comprises 40 to 50 parts of aliphatic diisocyanate, 0 to 10 parts of triisocyanate, 35 to 50 parts of polytetrahydrofuran dihydric alcohol, 0.5 to 5 parts of micromolecule dihydric alcohol, 0 to 2 parts of micromolecule trihydric alcohol, and 0.5 to 1.0 part of a light / heat stabilizer. The invention further provides a preparation method and application of the resin. The tangential breaking strength of carbon fiber modified resin coating can reach 130kN / m or above; for non-solvent sports shoe leather prepared through the method, the peeling strength can reach 90N / 3 cm or above and the hydrolysis resistance can reach 10 weeks or above.

The invention provides a solvent-free interlayer polyurethane resin for automotive trim leather and preparation method thereof. The solvent-free interlayer polyurethane resin is composed of an A component and a B component in a mass ratio of (2.5: 1)-(1: 2.5) through the mixing; the A component is composed of diisocyanate, oligomer dihydric alcohol, micromolecular dihydric alcohol, micromolecular trihydric alcohol, catalyst, light / heat stabilizer, flatting agent and solvent-free color paste; the B component is composed of diisocyanate, triisocyanate, oligomer dihydric alcohol, micromolecular dihydric alcohol, micromolecular trihydric alcohol and antioxidant. The polyurethane resin prepared by the method disclosed by the invention can be used as the interlayer for the automotive trim leather, the high temperature durable performance and various mechanical properties of the automotive leather can be effectively guaranteed while meeting the hydrolysis resistance of the automotive leather product; the peeling strength of the prepared automotive leather product reaches up to 145N / 3cm, the hydrolysis resistance can reach the condition that the peeling strength still reaches up to 135N / 3cm after 10 weeks.

The invention relates to a compound-type metal roof thermal-insulation waterproof coating and a preparing method thereof. The compound-type metal roof thermal-insulation waterproof coating is composed of a surface layer coating and a base layer coating. The surface layer coating is prepared from water, dispersing agents, antifoaming agents, pigment, hollow glass beads, inorganic-thixotropy thickening agents, inorganic filler, silicone-modification acrylic emulsion, acrylic emulsion, film forming assistants, pH value regulation agents, thickening agents and antifreeze agents; the base layer coating is prepared from water, dispersing agents, antifoaming agents, pigment, heat-conducting functional filler, inorganic-thixotropy thickening agents, inorganic filler, acrylic emulsion, pH value regulation agents, thickening agents and antifreeze agents. Compared with the prior art, the problems that bonding of a present waterproof material and a metal base material is not firm, aging is prone to occurrence and the service life is limited are solved, and the compound-type metal roof thermal-insulation waterproof coating has the advantage of integrating water proofing, protection, rust protection and thermal insulation.

The invention discloses intelligent crushing treatment equipment, and relates to the technical field of medical waste treatment equipment. The intelligent crushing treatment equipment comprises an enclosure, wherein a driving cavity, a secondary crushing cavity and a collecting cavity are sequentially formed in the enclosure from top to bottom; a primary crushing cavity communicated with the secondary crushing cavity is formed in the outer wall of the secondary crushing cavity; a grinding mechanism is arranged in the primary crushing cavity; a driving gear is arranged in the driving cavity; the driving gear is connected with a forward and reverse rotation motor; two sides of the driving gear are engaged and connected with vertical racks; guide sliding blocks are arranged on the back surfaces of the racks; guide sliding grooves matched with the guide sliding blocks are formed in the inner side wall of the driving cavity; the bottom parts of the two racks are both connected with rotatingmotors; output shafts of the rotating motors stretch into the secondary crushing cavity and are connected with smashing mechanisms through couplers; a plurality of discharging holes communicated withthe collecting cavity are formed in the bottom part of the secondary crushing cavity. The intelligent crushing treatment equipment disclosed by the invention has the advantages of simple operation, high waste smashing efficiency and high automation degree.

The invention relates to an efficient drying and quality-improving device and method for brown coal. In the prior art, no efficient drying and quality-improving device or method for brown coal, which is used for improving the utilization value of the brown coal, exists. The efficient drying and quality-improving device is characterized by comprising a coal storage bin, a fuel bin, a hot blast stove, a cylinder-type dryer, a product bin, a cyclone dust collector, an electrical dust collector and a plurality of pipelines, wherein both the product bin and the coal storage bin are connected with the cylinder-type dryer; the cylinder-type dryer is connected with the cyclone dust collector; and the cyclone dust collector, the electrical dust collector, the fuel bin are all connected with the hot blast stove. The method is characterized in that the raw material of the brown coal is conveyed into the cylinder-type dryer from the coal storage bin; the hot blast stove generates high-temperature flue gas at the temperature of 700-900 DEG C, and the flue gas is conveyed into the cylinder-type dryer; the raw material of the brown coal is dried by the high-temperature flue gas and conveyed into the product bin from the cylinder-type dryer for sealing and cooling, so that the finished product of the brown coal is obtained after cooling. According to the device and the method, the moisture in the brown coal can be reduced substantially, and a part of ash content in the brown coal can also be reduced, so that the utilization value of the brown coal can be improved.

Disclosed are a disperse dye composition, and a preparation method and application thereof. The disperse dye composition comprises a component A composed of one or more of compounds shown as a formula (1) (please see the specifications for the formula), a component B composed of one or more of compounds shown as a formula (2) (please see the specifications for the formula), forbidden aromatic amine compounds, chlorinated phenols, chlorobenzene and chlorotoluene, optional auxiliaries, and other unavoidable impurities. The total content of the forbidden aromatic amine compounds is 10 ppm or below, the respective content of the various chlorinated phenols is 0.5 ppm or below, and the total content of the chlorobenzene and chlorotoluene is 1 ppm or below. The various environment protection indexes of the disperse dye composition meet the requirements of Oeko-Tex Standard 100(2016). In addition, after fabric is dyed through the disperse dye composition, the dyed fabric meets the baby level requirements of Oeko-Tex Standard 100(2016).

The invention discloses a kind of non oriented electrical steel non chrome insulating coating, comprising metal phosphate, organic resin, molybdenate, wherein the weight ratio of the metal phosphate, organic resin and molybdenate is: 1:0.1-2:0.0005-0.2. The coating does not come off after annealing at 750 degree with good interface resistance and corrosion resistance when the environmental protection is ensured.

The invention discloses a polyurethane matte top-coat paint with a far infrared function, which comprises the following components in percentage by weight: 30-40% of modified fatty acid resin, 1-10% of nitrocellulose, 1-5% of nano ceramic powder, 1-5% of delustering agent, 0.01-2% of assistant agent, 10-20% of solvent and the balance of curing agent ((Desmodur) N3390BA / SN hexamethylene polyisocyanate of aliphatic polyisocyanate), wherein the modified fatty acid resin is selected from one or two of alkyd resin and acrylic resin, and the nitrocellulose is selected from one or two of nitrocotton and nitrocellulose resin. After the polyurethane matte top-coat paint with the far infrared function is formed into a film, under the irradiation of sunlight (especially ultraviolet rays), OH- is generated, which can be used for effectively removing indoor benzene, formaldehyde, sulfide, ammonia and odor substances and has a sterilization function. The polyurethane matte top-coat paint has the advantages of good environmental protection and infrared radiation function.

The invention discloses a synthesizing method for organic silicon micro-balls with performances of super hydrophobicity and high temperature resistant, which relates to the synthesizing method of organic silicon. The synthesizing method for the organic silicon micro-balls comprises the following steps: firstly hydrolyzing n-silicate ester of which the structural formula is Si(ORn)4 (n is the number of carbon atom), and then forming a spherical pre-polymer after polycondensation; adding alkylchlorosilane of which the structural formula is Cl2Si(Rn)2 (n is the number of carbon atoms) or alkoxy silane of which the structural formula is (Rn)2Si(ORn)2 (n is the number of carbon atoms), so as to obtain the organic silicon micro-balls of which surfaces are fully provided with alkyls after copolycondensation. The obtained micro-balls have good dispersibility, and have characteristics of super hydrophobicity and high temperature resistant and the range of particle diameter is within 0.5-10 microns. The organic silicon micro-balls are simple in production technology, free form pollution during the production process and convenient for post-treatment technology, and can be widely applied to rubber, plastic and adhesive, so as to improve the temperature resistant performance of basis materials. The organic silicon micro-balls also can be applied to coating and self-prepared hydrophobic self-cleaned coating.

The invention discloses a portable magneto-rheological flexible clamping device and method, belongs to the technical field of machining clamping, and relates to the portable magneto-rheological flexible clamping device and method. The device is composed of a convex die and a concave die. The clamping method comprises the steps that firstly, the concave die and the convex die are placed on two sides of a blade so that the concave die and the convex die are matched; a magnetorheological fluid storage bag is extruded by a piston so that an elastic soft film expands and extends to be tightly attached to a blade body; a long switch permanent magnet is turned on, an excitation magnetic field is applied, a magnetorheological fluid is excited and solidified, and reliable clamping of the blade is achieved; and after the blade is machined, the magnetic field of the long switch permanent magnet is closed, a clamping force is removed, and the blade is taken out. A shell type piston is adopted to extrude the magnetorheological fluid storage bag to make the soft film be rapidly attached to the blade so as to achieve rapid positioning of the blade, the magnetorheological fluid in the soft film israpidly solidified through controllable excitation and works in an extrusion mode, and supporting rigidity and reliability are guaranteed. And on the basis of avoiding secondary clamping, machining efficiency is improved, and machining precision is guaranteed.

The invention discloses an aqueous UV wood paint. The aqueous UV wood paint comprises the following components: 20-40% of aqueous polyurethane resin, 20-60% of aqueous UV resin, 0.2-0.6% of an antifoaming agent, 0.2-0.8% of a leveling agent, 0.2-0.8% of a wetting agent, 0.2-0.8% of a thickening agent, 0.2-0.8% of an initiator, 0.2-0.8% of a dispersant, 0.2-0.8% of matting powder, 5-40% of water, and 0.2-0.5% of a handfeel auxiliary agent. The invention also discloses a preparation method of the aqueous UV wood paint and an application technology thereof. The aqueous UV wood paint has the advantages of good environmental protection performance, strong adhesive force, high hardness, good wear resistance and coin scratching-resistant performance. The preparation method has the advantage of simple operation, by employing a microwave drying method, the drying speed is fast, drying requirement of a thicker coating can be satisfied, the production efficiency is high, and the aqueous UV wood paint is quit suitable for industrial production.

The invention discloses a coordinative optimization configuration method for the capacity of a photovoltaic array, an energy storage device and a transformer of a photovoltaic charging station. The method comprises the following steps: firstly, determining a target function of the photovoltaic charging station, acquiring basic data of the photovoltaic charging station, and determining constraint conditions of the photovoltaic electric automobile charging station; secondly, optimizing the target function by applying an NSGA-II multi-objective genetic algorithm to obtain an optimization result;and finally, selecting the most reasonable construction requirement based on a construction investment budget of a investor according to the optimization result, and performing corresponding hardwarefacility configuration in the photovoltaic electric automobile charging station according to the construction requirement. The coordinative optimization configuration method disclosed by the inventionis applicable to all types of cities with the photovoltaic electric automobile charging station; an energy control strategy-based photovoltaic charging station optimization configuration method for coordinative optimization of the capacity of the photovoltaic array, the energy storage device and the transformer; and a theoretical foundation and a technical support are provided for construction and operation of an electric automobile charging station with a photovoltaic power generation system, so as to guarantee the economy, the environmental friendliness and the reliability of the construction and the operation of the charging station.

The invention discloses a novel quaternary layered double hydroxide (LDHs), its preparation method and an application thereof. The novel quaternary layered double hydroxide is characterized by comprising raw materials of two divalent compounds (M<2+>), two trivalent metallic compounds (M<3+>), a precipitating agent and a modifier. The preparation method comprises the following specific steps of: (1) weighing a certain amount of the precipitating agent, M<2+>, M<3+> and the modifier, respectively dissolving them in deionized water, stirring for dissolution, and carrying out ultrasonic processing; (2) adding the mixed solution which has undergone ultrasonic processing into a self-made fog-type tapered reactor for nucleation with pH value maintained at 9-10; and (3) transferring into a crystallization kettle after nucleation and crystallizing at the temperature of 70-100 DEG C for 4-8 h, centrifuging, washing, and finally placing into a vacuum drying oven for drying so as to obtain the product. The reaction devices provided by the invention have simple structures and require little investment. The technology is simple and easy to operate and can be used to realize large-batch production. The LDHs nanoparticles have small particle size, are uniformly distributed, and can be widely applied in the fields of catalyst, acid adsorbent, molecular container, flame retardant material, medical and biological material, photoelectric material and the like.

The invention provides an environment-friendly cold-resistant polyvinyl chloride (PVC) waterproof coil and a manufacturing technique thereof. The waterproof coil comprises the following components in parts by mass: 100 parts of PVC resin powder SG-5, 30-35 parts of synthetic plant ester, 2-4 parts of PVC heat stabilizer, 1-2 parts of calcium stearate, 1-2 parts of chlorinated paraffin wax and 30-40 parts of calcium carbonate. The synthetic plant ester, ethylene terpolymer or polyalcohol benzoate has the advantages of no toxicity and favorable low-temperature resistance, and thus, is used as a PVC plasticizer; and the environment-friendly heat stabilizer is added in the formula, thereby ensuring the environment-friendly performance and low-temperature resistance of the PVC waterproof coil. The coil adopts environment-friendly materials, does not have the problem of plasticizer volatilization, and prolongs the service life of the product (up to more than 15 years).

The invention discloses a building sand and stone efficient crushing and stirring device, which comprises a processing box, a heating chamber, an electric heater, a water box, a water inlet pipe, a crushing box, a crushing roller, a water spraying pipe, a backflow pipe, a stirring box, a stirring motor, stirring blades, a filter plate, a guide plate and an aeration pump, wherein the electric heater is arranged in the heating chamber; the bottom end of the heating chamber communicates with the crushing box through a first material conveying pipe; the top end of the processing box is provided with the water box; a dust suction device is arranged in the processing box; the stirring motor is arranged on the stirring box; an output shaft of the stirring motor is connected with a rotating shaft;the rotating shaft is provided with a plurality of groups of stirring blades; the filter plate is arranged inside the stirring box; a sand outlet pipe is arranged on the side wall of the stirring box; the stirring blades are arranged above the filter plate; a spray bar communicates with the aeration pump; the bottom end of the stirring box is provided with a guide plate in an inclined way; the lowest end of the guide plate is provided with a water outlet pipe. The building sand and stone efficient crushing and stirring device has the advantages that the environment-friendly effect can be ensured; the blockage of filter holes of the filter plate by sand and stone can be avoided; resources and cost can be reduced; the structure is simple; the use is convenient; the popularization is facilitated.

The invention discloses a soil remediation ecological moisturizing method based on efficient stirring. A solution mixing and effect-improving mechanism comprises a mixing cylinder, a bracket, a secondrotating motor, a stirring rod, a stirring frame, a shovel plate, a discharge pipe, a water stop valve, a charging barrel, a filtering barrel, a chain wheel, a chain, a rotating rod, an upper grinding block, a lower grinding block, a channel, a spiral feeding plate, a feeding pipe, a rotary vane, a filtering barrel, a water outlet and a water inlet pipe, the bottom end of the mixing cylinder is fixedly connected with a bracket, safe and convenient use is realized, a solution mixing and efficiency improving mechanism is arranged, the second rotating motor drives the stirring rod to rotate, andthe two rotating rods are driven to move and rotate through transmission of the chain wheels and the chains, so that the repairing agent is crushed through cooperation of the upper grinding block andthe lower grinding block, the repairing agent can be rapidly mixed with water, meanwhile, the rotary vane and the filtering barrel are matched to filter the water, impurities in the water are reduced, and the effect of the mixed repairing liquid is prevented from being affected by too many impurities.

The invention discloses a disperse dye composition as well as a preparation method and an application thereof. The disperse dye composition comprises a component A consisting of one or more of compounds shown by formula (1), a component B consisting of one or more compounds shown by formula (2), forbidden aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, optional accessory and other unavoidable impurities, wherein the total content of the forbidden aromatic amine compound is below 10ppm, the total content of chlorinated phenol of each kind is below 0.5ppm, and the total content of chlorobenzene and chlorotoluene is below 1ppm. The environmental protection indexes of the disperse dye composition meet the requirements of Oeko-Tex Standard 100 (2016); and the properties such as washing fastness after dyeing are excellent. Moreover, by adopting the disperse dyeing composition disclosed by the invention for dyeing, the dyed fabric meets the baby-level requirements of Oeko-Tex Standard 100 (2016).

The invention relates to a biodegradable composite prepreg cloth, and a preparation method and a device for the same. The composite prepreg cloth comprises a modified polylactic acid (PLA) resin accounting for 40-70 wt% of the composite prepreg and natural fiber. The preparation method comprises the following steps: conducting a continuous drying treatment on natural fiber; immersing the fiber with molten modified PLA; coating the modified PLA on the surface of the natural fiber; and rolling, cooling and winding to obtain the prepreg cloth. The device comprises an untwisting machine, an arrangement warping device, a direction control device, a friction roll, a tenslator, a film extruder, a gum dipping cooling device, and a winding device. Compared with the prior art, the invention has the advantages of large fiber draw ratio, obvious PLA enhancement effect, small wear of the extruder screw, simple process, energy saving and environment-friendliness.

The invention discloses a soil remediation ecological moisturizing system which comprises a vehicle frame, a hanging ring is fixedly connected to one end of the vehicle frame, fixing bases are fixedlyconnected to the bottom end of the vehicle frame, and rolling wheels are rotationally connected to the two ends of the two fixing bases. A soil collecting and crushing mechanism is installed in one fixing base, a heating cylinder is fixedly connected to the top end of the vehicle frame, a soil repairing and discharging mechanism is embedded in the heating cylinder, use is safe and convenient, thesoil collecting and crushing mechanism is arranged, and through cooperation of a positioning pin, a limiting block and a limiting groove, the angle of a shovel plate is conveniently adjusted, so thatthe angle of the shovel plate is adjusted according to the actual ground, the shovel plate is attached to the ground, severely polluted soil is conveniently shoveled up, the soil collection efficiency is improved, the soil remediation efficiency is improved, meanwhile, the labor pressure of workers is reduced, and a rotating shaft, a conveying belt, a rotating rod, a belt and a transmission gearare matched.

The invention discloses water-based styrene-acrylic emulsion for primer and topcoat integrated metallic paint and a preparation method of the water-based styrene-acrylic emulsion. The raw material of the water-based styrene-acrylic emulsion is composed of the following components of, by weight, 8-13 parts of styrene, 21-26 parts of butyl methacrylate, 2-7 parts of butyl acrylate, 1-5 parts of iso-octyl acrylate, 1-5 parts of acrylic acid, 1-3 parts of phosphate ester functional monomers, 1-3 parts of emulgators, 0.3-0.6 part of persulfate, 01-0.3 part of oxidizing agent, 0.10-0.3 part of reducing agent, and 53 parts of water. The phosphate ester functional monomers are grafted into acrylic based emulsion particles through polymerization reaction, so that the prepared metallic paint and metallic ions have good complexation, and a quite compact protective film is formed; meanwhile, a gloss controllable technology is adopted, and not only are the good water resistance, salt water resistance, salt fog resistance and other corrosion resistance ensured, but also the good glossiness and hardness are achieved. The paint is directly sprayed or brushed on the surface of metal after being prepared, a compact, flat and smooth paint film is formed, and the water-based styrene-acrylic emulsion for the metallic paint combined with the performance requirements of primer and topcoat is obtained.

The invention relates to a natamycin preparation and a preparation method thereof. The preparation is prepared by the following method: utilizing an extraction-free method to separate a natamycin fermentation raw solution; adding or not adding a pesticide auxiliary agent into a concentrated solution or a filter cake of the natamycin fermentation raw solution and mixing uniformly to obtain the natamycin preparation; or uniformly mixing the obtained concentrated solution or the filter cake with other active components by adding or not adding the pesticide auxiliary agent to prepare a mixed preparation. The invention provides an extraction-free process for directly drying, puffing and crushing mycelia of natamycin production strains to produce the natamycin preparation which is specially used for fodders from mildew and is suitable for being used as a pesticide in the field. The extraction-free natamycin preparation production process has a simple process and does not use an organic solvent, and the required devices are fewer, so that the cost is low, the yield is high and no waste dreg is generated; and meanwhile, a flashing point of a product is high and the natamycin preparation is easy to store and transport, is safe and environment-friendly, and is beneficial to an ecological environment.

The invention discloses an ore efficient aeration vibration cleaning device which comprises a feeding pipe, a treatment box, a material shake plate, a water storage box, a water spray pipe, a screen plate, a dust collector, an aeration machine, a center rotating shaft and a backflow pipe. The feeding pipe is arranged at the top end of the treatment box. The material shake plate is further arrangedin the treatment box. The water storage box is mounted at the top end of the treatment box. The water spray pipe is arranged on the water storage box. A spray head is arranged at the outlet end of the water spray pipe. The dust collector is mounted on the inner wall of the top end of the treatment box. The screen plate is obliquely arranged in the treatment box. An ore discharging pipe is arranged on the side wall of the treatment box. The center rotating shaft is fixedly arranged at the center position of the screen plate. One end of the center rotating shaft penetrates the side wall of thetreatment box to be connected with an output shaft of a forward and reverse rotation motor. The treatment box communicates with the aeration machine. According to the ore efficient aeration vibrationcleaning device, safety is improved; the ore surfaces can be cleaned conveniently; the work efficiency and effect are improved; water is cyclically used; energy is saved; the use cost is reduced; thestructure is simple; use is convenient; and popularization is facilitated.

The invention relates to a regenerated rubber and a preparation method. The method comprises the following steps of: adding 20-40-mesh waste rubber powder into a piece of heating thermal insulation high-speed mixing equipment based on 100 weight parts; adding 0.5-4 parts of regeneration activating agent, 5-30 parts of regeneration swelling agent and 1-10 parts of other processing aids, and setting the temperature of a heating medium in the regeneration equipment to 180 DEG C; feeding the premix into the device through a first opening of a waste rubber net structure reestablishing device; after incompletely-sealed normal-pressure regeneration, discharging the material from a second opening part of the device; and performing water cooling on the regenerated material in a follow-up cooling device, wherein the whole regeneration time of the material is 30 minutes.