36results about How to "Play a destructive role" patented technology

The invention discloses a preparation method of a nanocellulose film precipitated by applying a water solution. The preparation method comprises the following steps: dissolving cellulose with concentration of 10-40g / L into a mixed solution of sodium hydroxide, urea and water at minus 15-minus 8 DEG C; after heating the cellulose solution to the room temperature, dropwise adding water to the cellulose solution to precipitate cellulose to obtain nanocellulose colloid dispersion liquid; filter-pressing the nanocellulose colloid dispersion liquid to obtain the nanocellulose film, wherein the mixed solution contains 5-10% of sodium hydroxide, 10-15% of urea and the balance of water by mass percent, and the volume ratio of water to the cellulose solution is (1-3):1. The method overcomes the defects of difficulty in acid waste liquor recovery, high preparation cost, high preparation energy consumption, heavy environmental pollution and the like in the existing preparation method of nanocellulose and the film thereof, and has the advantages of simplicity and high efficiency in operation, solvent reusability, environment friendliness and low energy consumption.

The invention relates to tin-zinc lead-free solder, which comprises the following components in percentage by weight: 7 to 9 percent of Zn, 0.1 to 2 percent of Ga and the balance of Sn. The tin-zinc lead-free solder is prepared by a two-step smelting method. The preparation method comprises the following steps of: (1) preparing tin and zinc into a Sn-Zn intermediate alloy in proportion at a smelting temperature of between 380 and 420 DEG C; (2) melting the Sn-Zn intermediate alloy, and after melting, adding the metal Ga when the temperature is reduced to between 180 and 220 DEG C; and (3) after the alloy is melted, continuously stirring the mixture to make the components uniform, and performing heat preservation, cooling and casting to form the alloy. The Sn-Zn-Ga lead-free solder alloy has low melting point and excellent combination property.

The invention is concerned with the photolysis oxidation purifying light tube, belongs to the environment managing product, it is: firstly, manufactures the quartz glass tube follows the fluorescent lamp manufacture method with the silica as the raw material; secondly, takes out the air of the quartz glass tube and injects with the high purity mercury; thirdly, seals the quartz glass tube and connects the electric; finally, controls the startup voltage remains 100 to 230 volt, the input power remains 70 to 90 watt, and the power factor is not lower than 0.98 after connects the electric with the quartz glass tube, which generates photolysis oxidation purifying light tube with the ultraviolet ray wave band 158 to 280 Nano-meter, the average permeance rate no lower than 87 percent, the irradiation strength 150 to 200 mu watt per sq cm, and the ozone thickness 40 to 60 part per million. It is with simple design, low production cost, high efficiency and operating speedily.

The invention discloses a laser speckle eliminating device with the dodging function. The device comprises a laser light source, a transmission medium and a vibration module, wherein the vibration module is fixedly connected with the transmission medium; a scattering body is arranged in the transmission medium; the scattering body is formed by distributing the material which is different from thetransmission medium with uniform density in the transmission medium; the vibration module is vibrated under the action of a power supply, thereby driving the transmission medium and the scattering body to vibrate together; and the input power of the vibration module is adjusted to adjust the vibration amplitude of the transmission medium and the scattering body until the optimal speckle eliminating effect is obtained.

The invention discloses a grenade / hand grenade product which has the function of shot firing by wireless remote control and the usage of the product. The product comprises a grenade / hand grenade and a shot firing part by remote control which is composed of a wireless receiver and a wireless launcher; the wireless receiver comprises a power switch on the bomb shell, an upper cover and receiving antenna on the upper cover and a radio circuit board in the bomb, a battery and an electronic fuse are arranged on the radio circuit board; the wireless launcher comprises a shell and a launching circuit board and a battery in the shell, launching antenna and a remote control firing press button are also arranged on the shell. The invention can lose no opportunity in firing the grenade / hand grenade has the function of shot firing by wireless remote control after thrown, which has a certain effect to destroy things and also avoids hurt one's own, thus can well complete the work task which has been hard to complete due to the delay blasting of grenade / hand grenade quickly.

The invention mainly provides an electric car which could generate, store and provide power from driving automobiles by gravidities of automobiles and running of wheels. The electric car include a gearing system, a driving system, a running system and a brake system fixed the chassis of the car, the car body, electric equipment, two symmetrical groove for fixing two independent wheels in the wheel hub. An active mandril and its sheath are in the wheel hub between two wheels. The inner end of the active mandril has a bar inclined plane, the outside end has an arch fixing plate. A cushion band is beside the fixing plate. A generator is in the wheel hub. The rotor axle is fixed in the half axle by the positioning axle, stators are fixed in the wheel hub. An active pendulum is in the rotor axle and is cooperated with the bar inclined plane of the active mandril, the top thereof has rolling wheels.

The invention relates to a preparation method of nanometer hydrophobic calcium oxalate powder for a protection coating of stone cultural relics. The preparation method comprises preparing calcium oxalate and modifying the prepared calcium oxalate. The nanometer hydrophobic calcium oxalate powder has bionic performances, good hydrophobicity, good weatherability, good abrasion resistance and a long service life and does not damage stone cultural relics after losing effect. The preparation method has the advantages of simple processes, good production conditions, low processing cost and effective prevention of erosion of stone cultural relics.

The invention provides a human body canal cast filler and a preparation method of the human body canal cast filler; and the human body canal cast filler is good in physicochemical performance, strong in acid-base resistance, good in flexibility and stronger in support force. The human body canal cast filler is prepared by the components according to the volume ratio: 100ml of cyclodextrin (CYD)-128 type epoxy resin, 20-24ml of liquid-state nitrile rubber, 35-40ml of polypropylene glycol diglycidyl ether, 15ml of 2, 4, 6-tri-(dimethylamino methyl) phenol (DMP-30), 45ml of modified polyether amine epoxy resin curing agent ZY-1784 and 40-45ml of high-performance epoxy resin toughening modifier (RF-400). The human body canal cast filler is easy in preparation as well as simple and convenient in operation, can be completed by once injection without after-teeming, and can be immediately prepared when injection is not sufficient. The invention has the characteristics of being good in fluidity, low in injection resistance, full in molding, fin and attractive, low in contractibility rate, environment-friendly and the like.

The invention discloses a trace Sn-doped perovskite membrane repair preparation method and an all-inorganic perovskite solar cell. The preparation method comprises the following steps of dissolving tin halide and lead halide into a DMF solution to form a substrate solution; spin-coating the substrate solution onto the surface of a substrate, and drying the substrate solution on the surface of thesubstrate to enable the surface of the substrate to form a substrate layer; dissolving cesium halide into DMSO to form a modified solution, wherein the modification solution is spin-coated on the substrate layer repeatedly, the heating is performed after each spin coating is completed, and the modification solution and the substrate layer are gradually reacted to form the all-inorganic perovskitelayer. The tin halide has a damage effect on a film formed by the original lead halide, so that the substrate layer becomes a loose porous structure, the reaction of cesium halide and lead halide is facilitated, and the reaction area between cesium halide and lead halide is increased; and after cesium halide reacts, the pores are gradually filled up, and the obtained all-inorganic perovskite layerhas fewer needle holes and shows more excellent charge extraction capacity and charge transfer capability.

The invention belongs to the technical field of walnut processing, and particularly relates to a processing method of walnut kernel beverage which comprises the steps of peeling, pulping and blending,homogenizing and sterilizing; the step of peeling is that, freezing walnut kernels at 10-20 DEG C for 30-40 minutes, then putting the walnut kernels into a plasma activating machine, treating the walnut kernels with plasma gas for 4-6 minutes under the conditions of 50-60 Pa pressure and 110-140 W activation power, and then washing the walnut kernels with deionized water at 10-30 DEG C under highpressure to obtain peeled walnut kernels. The walnut kernel beverage prepared by the method disclosed by the invention has high nutritional value, rich nutritional ingredients, uniform texture, fineand smooth taste, and long shelf life. The peeling method is simple and feasible, which has high controllability, high safety, high peeling effect and less nutrition loss. The pulping and blending method is simple and feasible, which has low cost and low control requirement, and can enrich nutrient composition of the walnut kernel beverage, and waste of walnut protein is avoided.

The invention relates to a high-efficiency integral PCD milling cutter, comprising a cutter head and a handle which are of an integrated structure, wherein the top of the cutter head is provided with a plurality of blades, the number of the blades is 10, the blades are circumferentially and uniformly distributed at the periphery of the top of the cutter head and comprise blades A and blades B, the number of the blades A is three, the number of the blades B is seven, the blades A comprise a first blade A1, a second blade A2 and a third blade A3, two blades B are located between the first blade A1 and the second blade A2, another two blades B are located between the second blade A2 and the third blade A3, and the rest three blades B are located between the third blade A3 and the first blade A1. The high-efficiency integral PCD milling cutter realizes effective control of the roughness of a cylinder wall and improves cutting quality.

The invention discloses a high-temperature high-pressure well cementation additive. The high-temperature high-pressure well cementation additive comprises a component A and a component B, the component A comprises, by weight, 20 parts of a water reducing agent, 5 parts of hydroxyethyl bisphosphonic acid, 1 part of zeolite powder and 30 parts of water, and the component B comprises, by weight, 5 parts of coconut shell powder, 0.5 part of sugarcane powder, 3 parts of sodium carboxymethylcellulose, 2 parts of zinc acrylate, 5 parts of polyvinylpyrrolidone and 200 parts of water. A method for preparing the coconut shell powder comprises the steps that a 4 M sulphuric acid aqueous solution 10 times of the total mass of smashed materials is added to the smashed materials, soaking is carried outfor 2 h, the smashed materials are placed in a vacuum drying box of 120 DEG C to be dried, and pre-treated coconut shell residues are obtained; ethyl alcohol, a titanate coupling agent and potassium hydroxide are added to the pre-treated coconut shell powder, the materials are mixed, recirculation is carried out for 6 h, the materials are placed in the vacuum drying box of 120 DEG C to be dried, smashing is carried out, and the coconut shell powder is obtained. According to the high-temperature high-pressure well cementation additive, by means of the joint action of the component A and the component B, the thickening time of the cement mud is effectively prolonged.

The invention relates to a silicon controlled rectifier module. The silicon controlled rectifier module comprises a red copper bottom plate and a shell which is arranged on the red copper bottom plate; the left end and the right end of the red copper bottom plate are each provided with an external hole; the red copper bottom plate is provided with two ceramic chips between the two external holes;the two ceramic chips are respectively provided with a group of copper-clad areas; each copper-clad area is provided with a group of extraction electrode plates and two chips according to a controllable rectification circuit, and gate poles are arranged in the middle of the chips; and aluminum wires are bonded between the chips and the copper-clad areas and between the gate poles and the copper-clad areas. The silicon controlled rectifier module can effectively solve the problems that an existing silicon controlled rectifier module is connected through a connecting bridge, stress is high, a chip is prone to damage, and the service life is shortened.

The invention relates to a heating pipe support of a roller washing machine, and the roller washing machine. The heating pipe support is formed through bending of metal wires and comprises an installation part connected to an outer cylinder of the washing machine, a clamping part connected to a heating pipe and a connecting part used to connect the installation part and the clamping part, wherein the clamping part, the connecting part and the installation part are disposed from top to bottom; the lateral face is Z-shaped; the installation part is a first frame body equipped with an opening on one side and comprises a first frame and a second frame which face each other as well as third frame which connects the first frame and the second frame, and the third frame is opposite to the opening of the first frame body; the clamping part comprises at least two U-shaped clamping frames which are almost disposed in parallel, planes of the clamping frames are almost perpendicular to the plane of the frame bodies of the installation part, and the opening of the clamping frame faces the third frame side; and the connecting part at least comprises a first rod and a second rod which are disposed in an inclined manner, the first rod is connected to the first frame and a first clamping frame, and the second rod is connected to the second frame and the second clamping frame.

The invention relates to an extraction method of shark cartilage for eyedrops. The extraction method comprises the following steps: taking shark suft bones, grinding into fine powder, adding into water, evenly stirring, placing in a distillation still for distillation, removing evaporative steam, then cooling to obtain extract liquid; adjusting the pH value of the extract liquid to be below 4.0 below, filtering through an ultrafiltration membrane, then conveying the ultrafiltrate into a bed layer filled with alumina grains for adsorption to obtain a permeate solution; regulating the pH of the permeate solution to be higher than10.0, adsorbing by macroporous adsorption resin to remove impurities, thus obtaining a solution with impurities removed; regulating the pH of the solution with impurities removed to 6.0-7.0, performing pressure-reduced concentration, crystallizing, centrifuging and drying to obtain shark cartilage. According to the extraction method, small-molecular impurities in suft bones can be removed in a distillation manner and the fiber structure of the suft bones can be damaged to certain extent, so that the shark cartilage can be separated out as much as possible, and finally high-yield and high-purity shark cartilage can be obtained.

The invention discloses a haze-proof traffic lamp, belonging to the field of traffic lamps, and particularly relating to a haze-proof traffic lamp. The haze-proof traffic lamp comprises a lamp frame and a signal control box, wherein the lamp frame comprises a transverse frame and an upright post; the transverse frame is provided with a traffic lamp; the traffic lamp is connected with the signal control box through an electric wire. The haze-proof traffic lamp is characterized in that a mist-absorbing pipe is arranged at the bottom of the upright post, and is connected with a mist-absorbing pump; the mist-absorbing pump is connected with a mist filter. The haze-proof traffic lamp further comprises an electronic projector which is arranged on the transverse frame and connected with the signal control box, and can be used for displaying real-time traffic signals synchronously to the traffic lamp and projecting the traffic signals onto the ground or opposite vehicles in real time. By adopting a haze clearing device, haze around the traffic lamp can be cleared in time to keep traffic signals clear. Even on a hazy weather, pedestrians and vehicle drivers can distinguish current real-time traffic signal display clearly and pass through road junctions safely according to signal instructions, thereby avoiding traffic accidents.

The invention relates to the technical field of cell panel water-free sweeping, in particular to a combination brush type photovoltaic cell panel array cleaning robot. The combination brush type photovoltaic cell panel array cleaning robot can conveniently carry out cleaning on the photovoltaic cell panel at any time, the damage of the photovoltaic cell panel can be relieved, the service life is prolonged, the robot comprises a machine body, a disc brush mechanism, a rolling brush mechanism, a strip brush mechanism, an advancing mechanism and a control cabinet, the disc brush mechanism comprises a first motor, a belt wheel, a belt, six sets of connecting shafts, six sets of discs and six sets of round bristles, the rolling brush mechanism comprises two sets of second motors, two sets of rolling shafts and two sets of rolling brush bristles, the outer sides of the two sets of rolling shafts are fixedly sleeved with shaft sleeves, the strip brush mechanism comprises three sets of PVC square blocks, the bottom ends of the three sets of PVC square blocks are connected with strip bristles, the advancing mechanism comprises four sets of third motors, four sets of hanging wheels, and fivesets of advancing shafts, and advancing wheels are connected to two ends of the five sets of advancing shafts.

The invention discloses a freezer provided with plasma purifiers. The freezer provided with the plasma purifiers comprises a freezer body. Fans are arranged on a left side wall and a right side wall which are opposite inside the freezer body respectively, one plasma purifier and a filtering net are arranged in front of an air outlet of each fan in sequence, the outlet of each plasma purifier faces towards the inside of an indoor cabinet body of the freezer body, each plasma purifier and the corresponding filtering net are fixedly installed on the corresponding side wall inside the freezer body through a shell, each filtering net is installed at the outlet of the corresponding plasma purifier, and a series of horizontally arranged strip-shaped holes are formed in the face, right facing the corresponding filtering net, of each shell. The freezer provided with the plasma purifiers is simple in structure, is convenient to install and use, can effectively kill bacteria, germs, mould, microorganisms and the like in air, further isolates bacteria, microorganisms and the like from breeding on food, protects food from mould and spoilage, eradicates odor, plays a role in retaining freshness and guaranteeing quality, and is economical and practical.

The invention discloses a lycium ruthenicum stock solution and a preparation method thereof. The preparation method comprises the following steps: placing dried lycium ruthenicum in a jet mill to perform ultrafine pulverization, and grinding the lycium ruthenicum through liquid nitrogen to obtain ultrafine powder; adding a cellulase solution into the ultrafine powder for ultrasonic assisted extraction to obtain a first extracting solution; filtering the first extracting solution to obtain first filtrate and first filter residues, and adding a pectinase solution into the first filter residues for ultrasonic assisted extraction to obtain a second extracting solution; filtering the second extracting solution to obtain second filtrate and second filter residues, and adding ethanol to perform microwave assisted extraction to obtain a third extracting solution; mixing the first filtrate, the second filtrate and the third extracting solution, carrying out ultrasonic extraction with ethanol asan extracting solution, and finally performing centrifugation to remove the ethanol. The lycium ruthenicum stock solution and the preparation method thereof have the advantages that damage to activeingredients is avoided in the preparation process of the lycium ruthenicum stock solution, the stock solution contains most of the active ingredients in the lycium ruthenicum, and especially, the content of anthocyanin is effectively increased.

The invention relates to an extraction method of shark cartilage for eyedrops. The extraction method comprises the following steps: taking shark suft bones, grinding into fine powder, adding into water, evenly stirring, placing in a distillation still for distillation, removing evaporative steam, then cooling to obtain extract liquid; adjusting the pH value of the extract liquid to be below 4.0 below, filtering through an ultrafiltration membrane, then conveying the ultrafiltrate into a bed layer filled with alumina grains for adsorption to obtain a permeate solution; regulating the pH of the permeate solution to be higher than10.0, adsorbing by macroporous adsorption resin to remove impurities, thus obtaining a solution with impurities removed; regulating the pH of the solution with impurities removed to 6.0-7.0, performing pressure-reduced concentration, crystallizing, centrifuging and drying to obtain shark cartilage. According to the extraction method, small-molecular impurities in suft bones can be removed in a distillation manner and the fiber structure of the suft bones can be damaged to certain extent, so that the shark cartilage can be separated out as much as possible, and finally high-yield and high-purity shark cartilage can be obtained.

The invention relates to a radial tire production system, in particular to an intensive ultra-large-scale radial tire production system of a high-performance car. The intensive ultra-large scale radial tire production system of the high-performance car provided by the invention comprises three layers of building plant, wherein the first layer is sequentially provided with a semi-finished product extrusion calendaring region, a cutting region, a molding region, a vulcanizing region, a finished product inspection region and a storage and transportation shipping region; the second layer sequentially comprises a mixing rubber storage region, a semi-finished product production region, a green tire spraying region, a green tire storage region and a finished tire storage region; the semi-finished product production region is provided with multiple triangular rubber pasting machines and multiple steel ring extrusion and rolling production lines; the third layer comprises a tire edge polishingregion, a tire inflation region and a tire maintenance region; the total area of the production system is larger than or equal to 250,000 m<2>, the total height is larger than or equal to 23.5m, the length is larger than or equal to 450m and the width is larger than or equal to 190m; and the temperature of the molding region is controlled to be 23+ / -5 DEG C and the humidity is controlled to be less than or equal to 70%. The tire production system provided by the invention has the intensive and ultra-large-scale characteristics.

The invention relates to a heating pipe bracket of a drum washing machine and a drum washing machine. The heating pipe bracket is composed of metal sheets, including a mounting part connected to the outer cylinder of the washing machine, a clamping part connected to the heating pipe, and a clamping part for connecting the mounting part and a clamping part. The connecting part of the part, the clamping part, the connecting part and the mounting part are arranged from top to bottom, and the connection is smoothly transitioned. The mounting part is a sheet-shaped planar structure, the clamping part is a U-shaped curved surface structure, the U-shaped curved surface structure is placed horizontally, and the U-shaped cross-section of the U-shaped curved surface structure is aligned with the sheet-shaped structure. The plane where the planar structure is located is vertical, and the opening of the U-shaped curved surface structure faces to the side.

The invention relates to a crude oil demulsifier, and discloses a natural polysaccharide macromolecule-modified crude oil demulsifier. The demulsifier is prepared by adopting the following operation steps: (1) conducting halogenation modification, carboxylation modification, amination modification, formylation modification, or isocyanic acid esterification modification on polyethylene glycol monomethyl ether; (2) preparing glycidyl dimethyl alkyl ammonium chloride; (3) preparing quaternized polysaccharide; and (4) reacting the modified polyethylene glycol monomethyl ether with quaternized polysaccharide to obtain a product, namely the natural polysaccharide macromolecule-modified crude oil demulsifier. According to the crude oil demulsifier, as the raw material, the natural polysaccharide macromolecule compound has multiple advantages of being wide in source, natural, non-toxic, sustainable, good in usage safety and the like; and the prepared demulsifier has good demulsifying and dewatering effects; in addition, the molecules of the demulsifier contain a great deal of groups of hydroxyl and the like, which have certain chelating capability to metal ions, thus being capable of removing a certain amount of metal ions while demulsifying.

The invention relates to a rectifier diode module which comprises a bottom plate, two ceramic chips are arranged on the bottom plate, two mounting holes are respectively formed in the left end and theright end of the bottom plate, a group of copper-clad areas are set on the ceramic chips, and extraction electrodes are arranged on the copper-clad areas in a rectifying circuit mode, and the rectifier diode module also comprises a group of bare chips set on the ceramic chips according to a rectifying circuit and aluminum wires which are bonded between the bare chips and the copper-clad areas. The rectifier diode module can effectively solve the problems that an existing rectifier diode module is connected in a bridge connection mode, the stress is high, a chip is prone to damage, and the service life is shortened.

The invention discloses a preparation method for repairing a trace Sn-doped perovskite film and an all-inorganic perovskite solar cell, comprising the following steps: dissolving tin halide and lead halide into a DMF solution to form a base solution; dissolving the base solution Spin coating onto the surface of the substrate, and dry the base solution on the surface of the substrate to form a base layer on the surface of the substrate; dissolve cesium halide into DMSO to form a modification solution, spin the modification solution on the base layer for several times, and each time After the second spin coating is completed, heating, the modification solution and the base layer gradually react to form an all-inorganic perovskite layer. Tin halide destroys the film formed by the original lead halide, making the base layer into a loose and porous structure, which is more conducive to the reaction between cesium halide and lead halide in the later stage, and increases the reaction area between cesium halide and lead halide. After the cesium halide reacts, the pores are gradually filled, and the obtained all-inorganic perovskite layer has fewer pinholes and exhibits better charge extraction and charge transport capabilities.

The invention discloses a laser speckle elimination device with uniform light function, which comprises a laser light source, a transmission medium, a vibration module, and the vibration module is fixedly connected to the transmission medium. There is a scatterer in the transmission medium, and the scatterer is composed of Materials different from the transmission medium are formed in the transmission medium with a uniform density distribution; the vibration module vibrates under the action of the power supply, and then drives the transmission medium and the scatterer to vibrate together, and the input power of the vibration module is adjusted to To adjust the vibration amplitude of the transmission medium and the scatterer until the best speckle removal effect is obtained.

The invention relates to a light-emitting two-dimensional code assembly. The light-emitting two-dimensional code assembly consists of a two-dimensional code layer, a printing layer, an electroluminescent panel layer and a supporting layer sequentially from top to bottom, and further comprises a transparent waterproof cover, wherein the transparent waterproof cover is fixed with the supporting layer; the two-dimensional code layer, the printing layer and the electroluminescent panel layer are arranged therein; the printing layer is made of a transparent material; the two-dimensional code layeris adhered on the printing layer; the electroluminescent panel layer consists of upper and lower transparent electrode layers, and a light-emitting layer arranged between the two transparent electrodelayers, and the light-emitting two-dimensional code assembly further comprises a micro controller and a photoelectric proximity switch; the electroluminescent panel layer, the photoelectric proximityswitch and the micro controller are electrically connected; and a power supply end of the micro controller is electrically connected to a rechargeable battery and / or a solar cell assembly. Accordingto the light-emitting two-dimensional code assembly disclosed by the invention, light-emitting two-dimensional codes are equipped with the electroluminescent panel layer, and a signal of the photoelectric proximity switch is received through a controller, so that a power supply can be automatically switched on while light is dim; and the electroluminescent panel layer emits light to realize illumination of two-dimensional codes, so that the problem that two-dimensional codes cannot be scanned successfully under a dark light condition is solved.

The invention discloses an auxiliary sheath for a jet-type optical cable, which belongs to the technical field of cable anti-corrosion equipment and can play a basic protection role on the cable through a triangular sheath after the cable is installed, and when the triangular sheath is corroded by microorganisms, the triangular sheath is protected by utilizing the characteristic that the thickness of a flexible film is smaller than that of the triangular sheath. The triangular sheath is corroded and broken in advance when the triangular sheath is not corroded and perforated, so that the ozone agent is sprayed out under the extrusion of magnetic force to damage nearby microorganisms, the corrosion effect of the microorganisms is reduced, a protection effect on the triangular sheath is achieved, meanwhile, the movable pressing plate relieves limiting of the balancing weight under the condition that the supporting of the cylindrical sleeve is lost, and the service life of the balancing weight is prolonged. And the magnetic glue is extruded by utilizing the gravity of the balancing weight, so that the magnetic glue is sprayed out, guided to the periphery of the triangular sheath under the assistance of magnetic force and cured to form a new protective layer, the corrosion resistance of the triangular sheath is further improved, and the service life of the triangular sheath is prolonged.

The invention is concerned with the photolysis oxidation purifying light tube, belongs to the environment managing product, it is: firstly, manufactures the quartz glass tube follows the fluorescent lamp manufacture method with the silica as the raw material; secondly, takes out the air of the quartz glass tube and injects with the high purity mercury; thirdly, seals the quartz glass tube and connects the electric; finally, controls the startup voltage remains 100 to 230 volt, the input power remains 70 to 90 watt, and the power factor is not lower than 0.98 after connects the electric with the quartz glass tube, which generates photolysis oxidation purifying light tube with the ultraviolet ray wave band 158 to 280 Nano-meter, the average permeance rate no lower than 87 percent, the irradiation strength 150 to 200 mu watt per sq cm, and the ozone thickness 40 to 60 part per million. It is with simple design, low production cost, high efficiency and operating speedily.

The invention discloses a pipeline dredging vehicle with adjustable double threaded wheels. The vehicle comprises a pair of threaded wheels symmetrically arranged, a support frame, a mud suction hoodconnected with the support frame and a threaded wheel drive motor. Each threaded wheel comprises a first threaded wheel in the front section, a second threaded wheel in the middle section and a thirdthreaded wheel in the tail section. The threaded wheels in the three sections are connected coaxially. A thread line of each first threaded wheel is a tapered thread line. The support frame comprisesfour pairs of support plates, two first connecting rods and a telescopic rod, two pairs of support plates are arranged between the first threaded wheels and the second threaded wheels, and the other two pairs of support plates are arranged between the second threaded wheels and the third threaded wheels. The two first connecting rods respectively connect all the support plates on the same side. The telescopic rod connects the two first connecting rods. During normal walking and dredging, the threaded wheels rotate to generate forward thrust between the threads and the ground, and the sludge isstirred and broken during the thread rotation, and meanwhile is transported to a mud suction port at the tails of the threaded wheels.