213results about How to "Reduce impurity" patented technology

The invention discloses a high-performance special ceramic material and a preparation process thereof, and the preparation process comprises the following steps: proportioning tungsten carbide, ternary boride, titanium nitride, molybdenum, nickel, silicon, cobalt and other raw materials with nano silicon carbide whiskers according to a ratio, carrying out ball milling treatment, adding a forming agent, and continuing ball milling and granulation; and then, carrying out compression molding on the ceramic powder, carrying out liquid phase sintering in a CO atmosphere, and cooling to room temperature to obtain the high-performance special ceramic material. The Mo3NiB3 ternary boride is introduced, so that the hardness and impact resistance of the ceramic material can be improved, the interface bonding force between a ceramic matrix and a reinforcing phase is enhanced, and the bending strength is improved; the nano silicon carbide whiskers are subjected to nickel plating treatment, so that the interface bonding force can be improved, microcracks are reduced, and the strength and toughness of the ceramic material are enhanced; by optimizing the sintering process and adopting a staged heating mode, grain growth can be controlled, and the density and mechanical properties of the ceramic material are effectively improved.

The invention relates to the technical field of cable winding, in particular to a cable winding device for aviation cable processing, which comprises a cable winding device for aviation cable processing, and a cleaning mechanism for cleaning a cable is arranged outside the cable winding device; the cleaning mechanism comprises a driving structure, a water conveying structure and a cleaning structure which are fixedly mounted on the mounting plate; the driving structure comprises a first wire conveying wheel and a second wire conveying wheel which are horizontally arranged; the water conveying structure comprises a vertically-arranged pump shell and a transversely-arranged valve pipe. According to the cable winding device, a cable can be cleaned during winding, meanwhile, static electricity of the cable is eliminated, overall stable winding of the cable is effectively guaranteed, winding work of the winding device on the cable is facilitated, friction force generated in the conveying process of the cable provides rotating power for the first cable conveying wheel and the second cable conveying wheel, the power transmission mode is simple and direct, and the power transmission efficiency is improved. Extra energy input is not needed, and the energy consumption cost is reduced.

The invention belongs to the technical field of pulp paper production, and particularly relates to a preparation method of low-dirt-degree and high-strength bleached sulfate mixed broadleaf wood wet wood pulp and pulp board. According to the invention, the acacia mangium chips and the eucalyptus chips are mixed and prepared, so that a foundation is laid for obtaining subsequent high-quality products; mixed wood chips are pre-impregnated in impregnation liquid with the effective alkali content being 4-8 g / L, so that the wood chips can react quickly in the cooking stage, and resin in broadleaf wood is eliminated; the wood chips are cooked, knotted, screened and washed, so that impurities in the slurry can be eliminated again; and by performing oxygen delignification treatment and bleaching on the coarse pulp, the quality of the pulp is improved. Therefore, the mixed broadleaf wood wet wood pulp and wood pulp board prepared by the preparation method disclosed by the invention are excellent in various indexes, low in dust degree, high in tension resistance, tear-resistant and breakage-resistant, and high-quality mixed wood pulp is provided for customers of paper for daily use.

The invention relates to the technical field of road rollers, in particular to an expressway reconstruction and extension road roller and a use method. Comprising a road roller body and a roller arranged on the road roller body, a roller scraping mechanism is arranged on one side of the roller, and a scraper cleaning mechanism is arranged on one side of the roller scraping mechanism; the roller scraping mechanism is rotationally connected with the road roller main body through a hydraulic rod assembly, the roller scraping mechanism is used for scraping impurities on the surface of a roller, and the scraper cleaning mechanism is used for cleaning the impurities on the surface of the roller scraping mechanism. Through cooperation of the roller scraping mechanism and the scraper cleaning mechanism, when a roller rolls, the roller scraping mechanism can scrape impurities attached to the surface of the roller, meanwhile, a stepping motor of the scraper cleaning mechanism drives a driving lead screw, then a cleaning scraping rod reciprocates along the surface of a scraper, and it is ensured that the impurities on the surface of the scraper are cleaned; the impurity removal effect of the roller scraping mechanism is ensured, and the use effect of the road roller is ensured.

The invention relates to the technical field of preparation of germanium dioxide, in particular to a preparation method of ultra-pure germanium dioxide, which comprises the following steps: grinding a germanium ingot to obtain germanium powder; transferring the germanium powder into a closed reactor, introducing high-purity chlorine into the closed reactor, and fully reacting to obtain germanium tetrachloride; distilling and purifying germanium tetrachloride; adding ultrapure water into the purified germanium tetrachloride, fully stirring, standing, and filtering to obtain germanium dioxide precipitate; and cleaning, drying and calcining the germanium dioxide precipitate to obtain the ultra-high-purity germanium dioxide with the purity of 7N or above. Germanium dioxide obtained by the preparation method of ultra-pure germanium dioxide is high in purity and high in yield, the chlorine content is lower than 0.003%, and the preparation requirements of BGO crystals are met.

The invention discloses a treatment process for removing impurities in neodymium-iron-boron oil sludge. The treatment process comprises the following steps: step 1, sieving the neodymium-iron-boron oil sludge, washing the neodymium-iron-boron oil sludge in an organic mixed solution, and removing liquid; 2, washing in a weakly acidic mixed aqueous solution, and removing liquid; 3, washing in an alkaline mixed aqueous solution, and removing liquid; 4, washing in water, and removing liquid; and 5, washing in an organic solvent, removing liquid, and drying to obtain purified neodymium iron boron oil sludge powder. According to the treatment process, the neodymium-iron-boron oil sludge is sequentially cleaned through the organic mixed solution, the weakly acidic mixed aqueous solution, the alkaline mixed aqueous solution, the water and the organic solvent, impurity elements such as Si, Mn and Ca and impurity particles in the neodymium-iron-boron oil sludge can be effectively removed, and the treatment process is suitable for the technical field of preparation of regenerated neodymium-iron-boron magnetic powder.

The invention relates to the technical field of lithium battery recovery, in particular to a pole piece recovery system and a pole piece recovery method. The pole piece recovery system comprises a crusher, a first crusher, a first screening device, a second crusher, a second screening device and a first hopper which are connected in sequence, a positive electrode discharge port and a negative electrode discharge port are formed in the first hopper, and the positive electrode discharge port is sequentially connected with a first grinder and a rocking sieve; a rocking sieve coarse material discharge port, a rocking sieve intermediate material discharge port and a rocking sieve fine material discharge port are formed in the rocking sieve, the rocking sieve intermediate material discharge port is sequentially connected with a second grinder and a second hopper, the second hopper is connected with the first hopper through a negative pressure pipeline, and a negative pressure fan is arranged on the negative pressure pipeline; the cathode discharge hole is connected with a copper hopper; according to the pole piece recovery method, the positive pole piece or the negative pole piece is recovered by using the pole piece recovery system. According to the invention, the positive plate and the negative plate can be recycled respectively, and the universality is high; the recycling rate of the positive plate can be improved.

The invention discloses an impurity removal mechanism of a cyperus esculentus harvester and a method thereof, and relates to the technical field of cyperus esculentus harvesting.The mechanism comprises a supporting bottom frame, and two supporting plates are arranged above the supporting bottom frame and connected with the top end of the supporting bottom frame. Through cooperative arrangement of the screening cylinder, the annular rolling groove, the supporting rolling wheel, the gear ring, the power motor, the first gear, the feeding port, the discharging pipe and the sealing door, the mechanism is installed on the cyperus esculentus harvester, cyperus esculentus is discharged into the screening cylinder through the feeding port, the power motor works to drive the first gear and the gear ring to rotate, and the screening cylinder is driven by the discharging pipe to rotate. According to the cyperus esculentus harvester, the screening barrel can rotate between the two sets of supporting rollers, impurities such as soil on the surfaces of cyperus esculentus are screened, the cyperus esculentus harvester is provided with the impurity removing mechanism, the harvested cyperus esculentus can be subjected to impurity removing treatment, the subsequent impurity removing procedure of the cyperus esculentus is reduced, and the cyperus esculentus harvesting efficiency can be effectively improved.

The utility model relates to the technical field of agricultural machinery, in particular to a picking and packing mechanism for a residual film recovery machine, which mainly comprises a rack and traveling wheels, a picking mechanism and a packing mechanism are arranged on the rack, the picking mechanism comprises a film lifting ground roller, a first film removing roller, a second film removing roller, a film loosening and residue discharging roller, a residue removing brush, a residue discharging auger and a plurality of film lifting belts arranged side by side, film lifting teeth are arranged on the film lifting belt at intervals; the packaging mechanism structurally comprises an open type box body, a plurality of rotating rollers are installed on the rear portion of the open type box body and arranged in an inclined straight line mode, an impurity discharging auger and a plurality of belt rollers are arranged on the front portion of the open type box body, and an annular wide belt covers the open type box body; the plastic film residue removing device is reasonable in structure, economical and practical, two-time film removing is achieved through the structure, film removing is clean and high in efficiency, film removing and residue removing are completed at a time in a streamline mode, the content of impurities in the film removing roller and plastic film residues can be effectively reduced, and efficient plastic film residue picking, recycling and packaging operation is achieved.

The efficient raw material cleaning equipment for improving the whiteness of the white cement clinker comprises a bottom plate, a supporting assembly is arranged on the top face of the bottom plate, a sleeve is arranged on the top face of the supporting assembly, a flushing assembly is connected to one side of the sleeve, and a water circulation assembly is connected to the side, away from the sleeve, of the flushing assembly; the second waste pool is arranged at the bottom of the water circulation assembly, one side of the water circulation assembly is in through connection with the interior of the sleeve, a rolling washing assembly is inserted into the sleeve, one side of the flushing assembly is inserted into the rolling washing assembly, and a rolling pushing assembly is slidably connected to the top face of the supporting assembly and is attached to the outer wall of one side of the rolling washing assembly in a rolling mode. White cement raw materials are put into the rolling washing assembly to be washed, the rolling pushing assembly is driven to horizontally move on the track plate, the rolling washing assembly can conveniently drive the cleaned white cement raw materials to be pulled out of and inserted into the sleeve, and therefore the cleaning efficiency of the white cement raw materials is improved.

The bidirectional sugarcane cutting and spreading machine is characterized in that the bidirectional sugarcane cutting and spreading machine comprises a vehicle frame, and a power assembly, a walking mechanism and a cab are arranged on the vehicle frame; the upper front end of the frame further comprises a double-screw mechanism arranged on the forefront portion of the frame and used for lifting and centralizing sugarcanes. The shifting tooth righting mechanism is arranged above the double-helix mechanism; the cutting cutterhead mechanism is located below the shifting tooth righting mechanism and used for cutting off the roots of the sugarcanes; the bidirectional clamping and conveying device is arranged behind the shifting tooth righting mechanism and above the cutting cutterhead mechanism, and is used for receiving the sugarcanes conveyed by the shifting tooth righting mechanism and laying the cut sugarcanes towards the left side or the right side according to topographic characteristics; and the sugarcane tail tip leaf crushing mechanism is arranged above the shifting tooth righting mechanism. According to the cutting and spreading machine, the cut sugarcane can be spread in two directions, the sugarcane can be harvested in an S-shaped track, the idle running time is shortened, the working efficiency is improved, and the working cost is reduced.

The invention discloses a tip cutting and sugarcane tip prediction method for a sugarcane harvester, and the method comprises the steps: (1), adjusting the initial position of a camera after the position of the camera is obtained, and adjusting the initial position of the camera to one side without sugarcane interference; (2) obtaining sugarcane tip position data through a camera, processing the data collected in a camera picture by using a sugarcane tip identification model, and preliminarily judging whether a cutter head is too high or too low by using the obtained sugarcane tip position information; (3) performing control coarse adjustment on a tip cutting device through a control algorithm of a single-chip microcomputer according to the position information of the sugarcane tips; and (4) acquiring the position of the sugarcane tip by using a camera, acquiring accurate sugarcane tip position information from the data through a sugarcane tip identification model, judging according to the sugarcane tip identification model and a prediction result, and finely adjusting the tip cutting device through a control algorithm of a single chip microcomputer. According to the method, the impurity rate and the loss rate of the sugarcane harvester during tip cutting can be reduced, and meanwhile a large amount of manual labor is saved.

The invention discloses a novel multifunctional grain threshing test bench. In order to overcome the problems of the existing grain threshing test bench, such as lack of control over grain feeding amount, inability to adjust the horizontal inclination angle of the threshing drum and the speed of the threshing drum, lack of grain partition collection and weighing function, inability to collect threshing debris for threshing effect evaluation, and difficulty in moving, the test bench includes a feeding metering assembly, a frame, a threshing drum, a residue collection assembly, an energy supply transmission assembly, and a control assembly. The feeding metering assembly is installed at the front end of the threshing drum, and the grain unloading part of the feeding metering assembly is close to the feeding port of the threshing drum; the threshing drum is fixedly installed on the middle frame by bolt connection, and is connected to the frame through the middle frame; the residue collection assembly is installed at the bottom of the rear end of the threshing drum and is fixed to the frame by bolt connection; the energy supply transmission assembly is installed on the side of the rear end of the threshing drum, and the power is transmitted to the rear axle of the threshing drum through a spline connection; the control assembly is placed on the ground on the side of the threshing drum, which can meet the needs of grain threshing tests under various changing conditions.

The utility model discloses an impurity removing device for a gasoline engine type peanut picker, which comprises a peanut picker body, a first collecting box for collecting peanuts is arranged on the peanut picker body, a material conveying mechanism is arranged at the side end of the peanut picker body, the material conveying mechanism is communicated with the inside of the first collecting box through a first connecting pipe, and a second connecting pipe is arranged at the side end of the first collecting box. The peanut picker comprises a peanut picker body, an impurity removal box is installed on the peanut picker body, two impurity removal grooves are formed in the impurity removal box, filter screen plates are installed at the positions, corresponding to the two impurity removal grooves, of the bottom end of the impurity removal box, a first rotating shaft is rotationally connected to the interior of the impurity removal box, and a first motor for driving the first rotating shaft to rotate is installed on the impurity removal box; and discharging openings are formed in the positions, corresponding to the two impurity removing grooves, of the side end of the impurity removing box, and a box cover is installed at the top end of the impurity removing box, so that peanuts in the impurity removing grooves are conveniently stirred, the peanuts are prevented from being accumulated on the filter screen plate, and the peanut impurity removing effect is guaranteed.

The utility model discloses an anode oxidation groove processing post cleaning device belongs to the technical field of cleaning device. Including fixed mechanism, first cleaning mechanism, second cleaning mechanism, fixed mechanism includes fixed base, and the lateral surface of fixed base is provided with cavity, and the top surface of fixed base is installed with a pair of connecting plate, and a plurality of first fixed frame, a plurality of second fixed frame are established between a pair of connecting plate, and first fixed frame and second fixed frame fixed aluminum plate, and first cleaning mechanism includes a plurality of installation in the top surface of fixed base branch pipe, and a plurality of branch pipes are located between first fixed frame and second fixed frame, and the outside of branch pipe is installed with a plurality of high pressure nozzles, and first cleaning mechanism still includes a plurality of installation in the pipeline in cavity, and branch pipe and pipeline are connected, and the water pipe is connected between a plurality of pipelines, and the water pipe is connected through water pump and water source, and the top surface of fixed base is provided with a plurality of and the opening hole of cavity intercommunication, and second cleaning mechanism utilizes air to clean aluminum plate.

The invention provides hand-held onion harvesting equipment for hilly and mountainous areas and a control method thereof. The hand-held onion harvesting equipment comprises a root cutting and conveying device, a top leaf removing device, a leaf stalk removing and conveying device, a harvesting frame, a walking chassis device and a hand-held device, the top leaf removing device is located above the tail end of the root cutting conveying device, the petiole removing conveying device is located behind the root cutting conveying device and the top leaf removing device, and the harvesting frame is located behind the petiole removing conveying device. The root cutting and conveying device is used for cutting the roots of the onions and conveying the onions to the petiole removing and conveying device through the top leaf removing device; the top leaf removing device is used for removing leaves at the tops of the cut onions; the petiole removing and conveying device is used for removing redundant petioles of the onions and continuously conveying the onions backwards to the harvesting frame. According to the onion harvester, the functions of cutting, conveying, leaf removing, field returning, harvesting and the like of onions are achieved, a plurality of procedures are integrated, follow-up treatment is reduced, the impurity rate of the onions is effectively reduced, and the onion harvesting efficiency and quality are improved.

The utility model discloses regenerated cotton impurity removal equipment, which relates to the technical field of treatment equipment and comprises a treatment barrel, a motor is fixed at the bottom end in the treatment barrel through a support frame, a transmission shaft is fixed at the output end of the motor, and a plurality of stirring rods are fixed on the outer wall of one end, far away from the motor, of the transmission shaft. Air distributing pipes are arranged on the four sides of the motor, a main air pipe is connected to the bottoms of the air distributing pipes, a plurality of air spraying pipes are arranged on the tops of the air distributing pipes, a material groove is formed in one side of the treatment cylinder, and after regenerated cotton enters the treatment cylinder, the motor works and then drives a plurality of stirring rods to rotate through a transmission shaft; the stirring rod can be rotated to hit and pull into block-shaped and lump-shaped cotton lumps and open the cotton lumps, and then wind blowing is performed under the action of the main air pipe, the branch air pipes and the air spraying pipes, so that doped dust particles and impurities can fall off, and the impurity rate in later-period regenerated cotton is greatly reduced.

The invention discloses a step-by-step impurity removal method for impurity-containing gold-loaded resin, and belongs to the technical field of mineral processing. The method specifically comprises the following steps: mixing the impurity-containing gold-loaded resin into slurry, putting the slurry into a small-sized thickener, stirring, standing, and removing fine light flocculent impurities on the upper layer; the impurity-removed gold-loaded resin is subjected to size mixing and placed in a vibrating spiral chute, large-specific-gravity coarse-particle colloidal impurities are removed, then the impurity-removed gold-loaded resin is placed in a multi-layer wet-type vibrating screening machine, pine needles, wood chips and other impurities with large particle sizes are removed through an upper-layer large-aperture vibrating screen, fine-crushed humus impurities are removed from an upper-layer undersize material through a lower-layer small-aperture vibrating screen, and the gold-loaded resin is subjected to impurity removal; the undersize is impurity-removed gold-loaded resin; all the obtained impurities are combined and checked and screened through a suspended vibration conical surface sorting machine, coarse particle products are impurities, and a small amount of fine particle products are resin. Aiming at the characteristics of different impurities in the gold-carrying resin, the invention develops a unique step-by-step impurity removal process, and high-quality gold extraction raw materials can be provided for resin ore pulp process enterprises.

The utility model discloses a poultry breeding factory capable of improving the breeding environment, which relates to the technical field of poultry breeding and comprises an air purification device located in a workshop. A breeding room is arranged on one side of the working room; one end of the air purification device is fixedly connected with an air supply main pipeline and an air return pipeline, and the other end is fixedly connected with an air inlet pipeline and an exhaust pipeline; the ends, away from the air purification device, of the air supply main pipeline and the air return pipeline communicate with the breeding room. During use, outside air enters the air purification device through the air inlet pipeline, purified air enters the two auxiliary air supply pipelines through the air supply main pipeline and then is discharged into the breeding room through the multiple air outlets, and meanwhile the air return pipeline can suck contaminated air in the breeding room into the air purification device. And then the air is exhausted to the outside through the exhaust pipeline, so that air replacement in the breeding room is completed, and a good environment is kept in the breeding room.

The invention relates to the technical field of medical application, in particular to a liver-targeted chemotherapeutic drug nano-micelle preparation method, a chemotherapeutic drug and application, and the preparation method comprises the following steps: S100, preparing pluronic-succinimide formate; s200, preparing a pluronic-polyethyleneimine copolymer; s300, preparing divinyl sebacate; carrying out enzymatic synthesis on the Pluronic F127-SE; the preparation method comprises the following steps: preparing a Pluronic F127-C8-GalNAc nano micelle; and preparing the GalNAc (at) LFT-MMs / siCOP1 compound. The preparation method disclosed by the invention is beneficial to rapidly preparing the nano-micelle with multiple effects of active targeting, chemotherapy and gene therapy.

The present application relates to a blowtorch for polishing the surface of a device, which includes a polishing lamp head, the polishing lamp head has a central feed hole and an annular flame hole surrounding the outer side of the central feed hole; the central feed hole is used to introduce a mixed gas of fluoride and oxygen; the annular flame hole includes a first layer of flame holes and a second layer of flame holes; the first layer of flame holes includes a first layer of oxygen holes and a first layer of hydrogen holes; the second layer of flame holes includes a second layer of oxygen holes and a second layer of hydrogen holes. Fluoride is introduced into the central feed hole. Fluoride has extremely strong oxidizing properties and can react with impurities on the surface of the device, such as reacting with metal impurities to generate gaseous fluoride and be carried away by the airflow. Under high temperature, fluoride will also decompose fluorine gas, and silicon atoms on the surface of the device react with fluorine gas to generate volatile SiF4, and a very thin layer of the surface of the optical fiber preform is etched away, and at the same time, impurities and defects on the surface are also taken away, thereby eliminating microscopic defects on the surface of the device.

The invention provides an automatic welding platform for a freezer shell, and relates to the technical field of automatic welding platforms, the automatic welding platform comprises a conveying platform, and a first welding station, a second welding station and a filling station are sequentially arranged above the conveying platform in the conveying direction; a filling assembly is arranged on the filling station; the corner butt joint piece comprises a corner plate, a middle connecting block, an outer arc block and an outer baffle; the first double-seam welding assemblies are symmetrically arranged on the two sides of the first welding station, and each first double-seam welding assembly comprises a first position adjusting component, a first laser welding gun, a first grabbing component, a first storage component and a first welding gun cleaning component; a second double-seam welding assembly; the reinforcing cover and the corner butt joint pieces are reserved outside the freezer inner container, the butt joint efficiency and the butt joint strength of the outer decoration plate can be effectively improved, the whole welding process is automatically completed, the welding efficiency is high, and manual positioning is not needed.

The utility model discloses a long fiber carding device, and relates to the technical field of bast fiber processing equipment. The hemp fiber carding device aims to solve the problems that in the prior art, a traditional hemp fiber carding device adopts a large number of knife rests, fibers are prone to being damaged when cleaned, and the fiber carding effect is not ideal. The fiber carding device comprises an input clamping belt wheel, a clamping belt slide way, a first clamping belt, a reversing belt wheel, a second clamping belt, an output clamping belt wheel and four fiber carding devices arranged in a roller shell. The reversing belt wheel is arranged between the second carding roller and the third carding roller, the input clamping belt wheel is arranged on the outer side of the first carding roller, and the output clamping belt wheel is arranged on the outer side of the fourth carding roller. The bast fiber processing device is used for bast fiber processing.

The utility model provides a humus soil separation treatment system, which is used for resourceful treatment of humus soil and comprises a feeding section, a primary screening section, a primary separation section and a secondary separation section which are connected in sequence, the primary screening section comprises a primary screening magnetic separator, an inlet of the primary screening magnetic separator is connected with the feeding section, and the primary screening magnetic separator is used for receiving humus soil and separating and storing magnetic substances after magnetic separation; the remaining materials are conveyed to the first-stage separation section; the primary separation section comprises a jigger and a shaking table, excess materials of the primary screening section enter the jigger, surface-layer large materials, bottom-layer concentrated materials and tailings are separated, the tailings are continuously conveyed to the secondary separation section, the bottom-layer concentrated materials are conveyed into the shaking table to be treated, and the surface-layer large materials are treated to separate precious metal; the secondary separation section comprises a drum screen, a vortex sorting machine and a precipitation and filtration device, after the tailings enter the drum screen, solid matters and sand-containing water are separated out, the solid matters are input into the vortex sorting machine for sorting, and the sand-containing water enters the precipitation and filtration device for separation treatment. According to the humus soil recycling device, humus soil is recycled, and the reduction efficiency of the humus soil is improved.

This invention provides a low-bud-damage sugarcane peeling machine to solve the technical problems of high bud damage and sugarcane stem damage caused by traditional centrifugal peeling machines during the peeling process. The sugarcane peeling machine of this invention includes a frame and, sequentially arranged along the sugarcane conveying direction, a leaf-crushing pretreatment component, a conveying component, an input roller, a tension-type peeling component, and an output roller. Support rollers on the frame provide fixed support for each component. A fan is installed above the peeling roller of the tension-type peeling component. The leaf-crushing elements of the leaf-crushing pretreatment component flexibly strike the sugarcane seed, leaves, and sheaths, causing them to fall. After being conveyed by upper and lower conveyor belts, they are fed into the peeling area by the input roller. The airflow from the fan blows the sugarcane leaves into the working area of ​​the peeling roller. The peeling elements on the surface of the peeling roller are spirally arranged, and the leaves are peeled off through tension. Finally, the sugarcane seed is discharged by the output roller. This invention achieves low sugarcane stem damage and bud-damage rates, controls the sugarcane seed impurity rate to below 3%, and has high peeling efficiency and a compact structure, making it suitable for large-scale sugarcane peeling.

The utility model relates to the field of emulsion processing, in particular to a filtering device for processing moisturizing emulsion, which comprises a processing cavity and an outer ring sleeve, the outer ring sleeve is arranged at the inner bottom of the processing cavity, a first filter screen is arranged at the inner side end of the outer ring sleeve, a second filter screen is arranged above the first filter screen, and meshes of the second filter screen are larger than those of the first filter screen. A right vertical cavity is formed in the right end of the outer side wall of the machining cavity, an adjusting motor is installed at the bottom in the right vertical cavity, an adjusting lead screw is installed at the output end of the adjusting motor, an adjusting sliding block is installed on the outer side wall of the adjusting lead screw, and the adjusting sliding block is connected with the upper end face of the outer ring sleeve through a right position frame. A plurality of filter screen structures are adopted, the impurity removal effect on the emulsion is ensured, an adjusting motor structure is adopted, the filter screens can be driven to move, impurities on the first filter screen and the second filter screen can be conveniently cleaned, and mesh blockage is avoided.

This invention relates to the field of plastic film recycling machinery, specifically to a residual plastic film recycling machine with a multi-stage pretreatment structure for the film surface. The machine includes a traction frame, with a film-lifting mechanism bolted to the front side inside the traction frame. Two support plates are welded to the top of the traction frame, and a film-unfolding mechanism and a film-pushing roller are respectively arranged between the two support plates. The film-pushing roller is located at the front end of the film-unfolding mechanism and above the film-lifting mechanism. A guide arc plate is fitted at the front end of the film-pushing roller. A collection frame is bolted to the rear end of the traction frame, and a guide plate is bolted to the rear end between the two support plates. A spiral soil collector is provided at the rear end of the guide plate for cooperation with the guide plate. The film-unfolding mechanism includes a driving roller and a driven roller rotatably connected between the two support plates. This invention provides a residual plastic film recycling machine with a multi-stage pretreatment structure for the film surface, which has the advantages of improving the film-soil separation effect and the cleanliness of the recycled residual plastic film.

The invention discloses a preparation method of zeolite seed crystal based on photo-initiation reaction, and the preparation method comprises the following steps: (1) dissolving fly ash and an alkaline compound in a solvent to obtain a mixed solution I; (2) adding a hydrogen peroxide solution and a template agent into the mixed solution I to obtain a mixed solution II; and (3) carrying out a reaction on the mixed solution II under an illumination initiation condition to obtain the zeolite seed crystal. According to the method, the fly ash is used as a raw material, the photoinitiator is added after alkali fusion treatment, and the zeolite seed crystal is prepared through illumination initiation of single crystals, so that compared with a traditional preparation method, the synthesis yield is higher, the conditions are milder, the crystallinity of the seed crystal is higher, and the problems of high energy consumption, low crystallization rate and low yield when the zeolite seed crystal is directly prepared from the fly ash at present are effectively solved.

The present invention relates to the structure and construction of a highway bridge expansion device, and in particular to a connecting mechanism of a highway bridge expansion device. It includes embedded parts that are embedded at intervals in the concrete structure at the bottom of a reserved groove opened at the beam end or the bridge head, and assembled with the anchor bars of the expansion device through overlapping bars; the embedded parts are embedded as a whole in the concrete structure at the bottom of the reserved groove, the top of the embedded parts is not higher than the bottom surface of the inner cavity of the reserved groove, the top of the embedded parts includes an assembly part that can be fixedly assembled with the anchor bars and / or a connecting plate that can be fixedly assembled with the anchor bars, the overlapping bars are rectangular, and the overlapping parts of the overlapping bars and the anchor bars of the expansion device are penetrated by horizontal steel bars. The present invention effectively solves the problems of long construction period and great construction difficulty of highway bridge expansion devices in the prior art, and has the advantages of low construction difficulty and strength, fast construction speed, and convenience for standardized production.

The utility model relates to the technical field of boron smelting raw material metal impurity removal, and discloses a boron carbide smelting raw material metal impurity removal device which comprises a box body, a box cover plate is arranged at the upper end of the box body, a supporting column is fixedly connected to the top of the box cover plate, and a fixing plate is fixedly connected to the top of the supporting column. A through groove is formed in the inner wall of the fixing plate, and a discharging hopper is fixedly connected to the bottom of the fixing plate. The electromagnet is started, then raw materials are poured into the discharging pipe through the discharging hopper, when metal impurities in the raw materials fall to the position of the electromagnet, the metal impurities in the raw materials are adsorbed through a magnetic field generated by the electromagnet, and therefore the metal impurities in the raw materials are removed, and the raw materials are discharged outwards through the discharging pipe. The raw material impurity removing efficiency is improved, the follow-up processing quality of the raw materials is improved, the adsorbed metal impurities fall off by closing the electromagnet, the metal impurities can be discharged, and the operation convenience during use is improved.