184results about How to "Speed up overflow" patented technology

The invention discloses an electromagnetic current coupling field assisted hybrid melting-brazing method for a laser-TIG arc and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of plasma formed through ionization of laser, arc and a raw material metal, thereby improving the laser utilization rate. Under the electric field assisted comprehensive effect, the weld melting depth is increased, and the assistant effect on the melting bath of the liquid-state brazing filler metal for laser-arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on the surface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, stabilizing the welding process, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.

The invention discloses an electromagnetic excited TIG arc melting-brazing hybrid welding method and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of a welding arc, and the assistant effect on the melting bath of the liquid-state brazing filler metal for arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on the surface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.

The invention relates to a vacuum welding method for preventing a laser seam from generating pores. A vacuum welding device for preventing the laser seam from generating the pores is designed for the method. The vacuum welding device comprises a laser, a welding chamber, a focusing head and a vacuum pump; the laser and the vacuum pump are located outside the welding chamber; one end of the focusing head is connected with the laser through a laser conducting cable; the other end of the focusing head is inserted into the welding chamber; a pre-vacuum-pumping chamber is arranged on one side of the welding chamber; a postwelding sampling chamber is arranged on the other side of the welding chamber; the welding chamber is communicated with the pre-vacuum-pumping chamber and the postwelding sampling chamber; the pre-vacuum-pumping chamber, the welding chamber and the postwelding sampling chamber are communicated with the vacuum pump. The vacuum welding device and method for preventing the laser seam from generating the pores can prevent from generating the pores when the laser seam is solidified, the process is simple, and operation is convenient.

The invention provides a preparation process of expanded stem products and belongs to the technical field of tobaccos. The preparation process comprises the following steps of: removing impurities such as metal, hemp ropes, stem heads and stem picks in tobacco stems; expanding the tobacco stems by microwave and steam; conveying the expanded tobacco stems into a pressure container to carry out pressure treatment; carrying out moisture regaining on the tobacco stems after pressure treatment and preparing into a certain product form; adopting a soaking mode to wash the stems, then dewatering by a physical mode till the water content is below 70%, and then adding additive feed liquid extracted from the tobaccos; adopting the traditional equipment in the tobacco industry to dry the stem products added with the feed liquid till the water content is 11 to 12%, adopting a flavoring machine to carry out flavoring treatment on the dried stem products, and balancing the water content to 11 to 12%. The preparation process provided by the invention has the advantages that the whole process is simple, the energy consumption is low, the quality of the expanded stem products obtained is close to that of the shredded tobacco product, the filling value is high, and large-scale adding can be achieved, so that the expanded stem product is an excellent tobacco additive.

The invention relates to a laser shock assisted electric arc additive manufacturing method, belongs to the field of additive manufacturing, and solves the problems that in the prior art, grains in anelectric arc additive component are thick and large, and holes, oxides and other defects exist. The laser shock assisted electric arc additive manufacturing method comprises the following steps that 1, an electric arc additive machining path is designed; 2, electric arc additive machining parameters are set; 3, the included angle between a laser cleaning head and a welding gun and machining parameters of a pulse laser cleaning machine are determined; 4, the included angle between a laser shock wave emitting head and the welding gun and machining parameters of a pulse laser shock emitter are determined; 5, the welding gun, the laser shock wave emitting head and the laser cleaning head work synchronously; and 6, an electric arc additive part is obtained according to the additive path. According to the laser shock assisted electric arc additive manufacturing method, through cooperative work of an electric arc additive device, a laser cleaning device and a laser impact device, the problemsthat the grains in the electric arc additive component are thick and large, and the holes, the oxides and the other defects exist are solved.

The invention provides a method for degrading pesticide residues on fruit and vegetables. The method comprises the steps of mixing, adjusting pH, performing ultrasonic oscillation and UV (ultraviolet light)-irradiation. The steps are specifically as follows: mixing nanometer TiO2 with ozone water and adjusting pH to 11-12 with a pH modifier; performing ultrasonic oscillation, thereby acquiring a mixed solution; putting the fruit and vegetables into the mixed solution, introducing air into the mixed solution and irradiating for 20min-90min with a UV lamp, thereby finishing the degrading of the pesticide on the fruit and vegetables. According to the invention, after photocatalysis and ozone combined degradation, the pesticide residues on the fruit and vegetables are quickly degraded. The method has the advantages of high efficiency, low cost, safety, environmental protection, and the like.

A self-regulating efficient gas-liquid cyclone separator for treating sewage is composed of a casing consisting of cylindrical upper half and conic lower half, a water inlet pipe consisting of primary lifting pipe and starting secondary lifting pipe, a water outlet pipe, and a marsh gas guiding pipe.

The invention provides a heat sink section bar, relates to an engineering heat sink device, in particular to a heat sink section bar for accelerating heat sink of electronic products, and aims to solve the technical problem of improving the structure of the existing heat sink section bas to realize active heat sink of the section bars. The invention adopts the following technical scheme for solving the above technical problem: the heat sink section bar comprises a heat sink substrate and a heat sink piece arranged on the heat sink substrate, the heat sink substrate and the heat sink piece are combined to form a tube shape with the cross section of the top being arc-shape. As for further improvement, a bead can be axially arranged at the exterior of the heat sink piece, and moreover, a bead can be axially arranged at the interior of the heat sink piece. The invention improves structure, adds heat sink mode and enhances heat sink efficiency.

The invention discloses a method and a device for performing electric magnetization resistance welding-braze welding compounding on dissimilar materials. In the process of performing arc welding-braze welding on the dissimilar metal material, a brazed liquid solder molten pool is subjected to the reinforced booster action of electromagnetic stirring and electric magnetization by using the characteristic that a magnet exciting coil generates an external applied alternating magnetic field in a welding area to control a welding arc so as to promote ordered flow of the liquid solder, and rupture of membranes, wetting, spreading and diffusion of the liquid solder on the surface of the metal material with a higher melting point, promote the liquid solder and a base metal which is molten by the metal material with a lower melting point to be mixed fully, improve uniformity of compositions of a soldered seam, reduce the weld defects, optimize the compositions and the performance of the soldered seam, and improve the soldered joint; and the device has the advantages of simple structure, flexible application, lower cost, good effect, and easy implementation.

The invention relates to a device used for the condensation of strong magnetic mineral. An efficient condensation magnet separator used for the condensation of strong magnetic mineral is characterized in that the efficient condensation magnet separator comprises a feeding box, a guide plate, a circular cylinder, a permanent magnet, an unloading plate, a damper, a collecting bucket, a separation plate, a bottom box and a frame; the permanent magnet is arranged in the cavity of the circular cylinder, and an axle on the circular cylinder is connected with a transmission mechanism; the bottom box is arranged at the lower part of the circular cylinder, the separation plate is arranged between the circular cylinder and the bottom box, a separation groove is formed between the separation plate and the circular cylinder, and a overflow channel is formed between the separation plate and the bottom box; the feeding box is positioned on the left side of the circular cylinder, the guide plate is fixedly connected in the opening position of the feeding box, and the guide plate is positioned at the upper part of the separation groove; the collecting bucket is positioned on the right side of the circular cylinder, and the collecting bucket is fixedly connected with the frame; the unloading plate is positioned in the collecting bucket, the unloading plate and the circular cylinder are distributed in the tangential direction, and the unloading plate is fixedly connected with the frame. The condensation magnet separator has the advantages that the content of the product solids after the condensation is high, and the condensation effect is good.

The invention discloses a production process of active lime. The process comprises the following steps of (1) screening and pretreatment of limestone, (2) mixing, (3) preheating, (4) calcining, (5) cooling and (6) post-treatment. Firstly, an additive used in the production process reduces underfiring and overburning of the lime, increases the decomposition speed of CaCO3, shortens the calcining time, correspondingly reduces the energy consumption and is beneficial to industrial popularization. Furthermore, carbon is also added, decompression operation is adopted after preheating and before cooling separately, correspondingly the elements sulfur and carbon which remain in lime raw materials can be volatilized out more thoroughly, and the recombination of the elements with calcium oxide is avoided, so that the purity of the active lime is improved, and the activity degree of quicklime is further improved.

The invention provides an EBM molded titanium implant and a preparation method and application thereof and belongs to the technical field of biomedical implant materials. The preparation method of theEBM molded titanium implant comprises the step of carrying out aftertreatment on a titanium implant molded in an EBM manner, wherein the aftertreatment comprises ultrasonic acid etching and anodic oxidation. According to the preparation method, during the preparation of the EBM molded titanium implant, the EBM molded titanium implant is subjected to surface treatment by adopting ultrasonic acid etching and anodic oxidation, so that residual powder can be effectively removed, and meanwhile, a micro-nano multistage structure beneficial to cell adhesion, propagation and differentiation is prepared on the surface of the titanium implant. The preparation method provided by the invention is simple and convenient, the consumption of chemical reagents can be effectively lowered; meanwhile, the prepared titanium implant has a rich micro-nano multistage structure, and thus, the osteogenesis activity of the implant can be effectively promoted; meanwhile, the bone integration capability of the implant can be effectively enhanced, the success rate of planting is increased, and thus, the EBM molded titanium implant and the preparation method thereof have broad application prospects.

The invention discloses a mixed resin defoaming device for a wind power blade, and belongs to the field of resin defoaming and forming. The mixed resin defoaming device comprises a double-layer operating platform, a defoaming tank, a vacuumizing component, a feed component, a discharge component and an air inlet component, wherein the defoaming tank is arranged on the upper layer of the double-layer operating platform, the vacuumizing component, the feed component, the discharge component and the air inlet component are arranged on the lower layer of the double-layer operating platform, the vacuumizing component is connected with the defoaming tank through a pipeline so as to vacuumize the defoaming tank, the feed component is connected with the defoaming tank through a pipeline so as to convey resin to the vacuum defoaming tank, the discharge component is connected with the bottom of the defoaming tank through a pipeline so as to discharge defoamed resin, and the air inlet component is connected with the defoaming tank through a pipeline so as to increase the resin discharge speed; a disperser which communicates with a feed opening located in a top cover body of the defoaming tankthrough a pipeline and is used for spraying resin to the inner wall of the defoaming tank is arranged in the defoaming tank; and an anti-overflow component comprises a motor which is fixed to the cover body and a defoaming paddle which is in driving connection with the motor and extends into the defoaming tank. According to the defoaming device, continuous defoaming can be realized, the defoamingtime is short, the defoaming effect is good, and the resin can be prevented from overflowing.

The invention relates to a facial mask machine and a use method thereof. The facial mask machine comprises an electrolytic cavity, a juice squeezing cavity and a facemask for pasting a facial mask, wherein the electrolytic cavity is divided into a cathode cavity and an anode cavity by a PEM (proton exchange membrane) electrolysis electrode; a control circuits controls the magnitude of current and / or voltage of the PEM electrolysis electrode; a sponge liquid absorbing layer, a vibration sponge liquid absorbing layer, a vibration diffusion layer enabling juice therein to diffuse to a face, a cold-hot temperature adjusting layer for adjusting the temperature of the facemask for pasting the facial mask, and a shell are arranged by laminating in the facemask for pasting the facial mask in sequence from an outer layer to an inner layer; one surface, facing to a human face, of the sponge liquid absorbing layer is provided with a plurality of liquid outlet holes in cooperation with a human face curve; the sponge liquid absorbing layer communicates with the anode cavity by virtue of an ozone tube which can be opened and closed; a first waterproof air-permeable film is arranged between the cathode cavity and the juice squeezing cavity; and the juice squeezing cavity communicates with the sponge liquid absorbing layer.

The invention relates to a hydraulic classifier which is characterized by comprising a separator main body which is composed of an overflow collecting section positioned at the upper part, a classifying bed body section positioned at the middle part and an underflow collecting section positioned at the lower part and is of an anti-waist clamping calabash-shaped structure; a feeding well for adding materials is installed in the hollow cavity of the separator main body through a fixed connector in a mode of the feeding well and the separator main body having the same axial line, the lower end of the feeding well vertically extends downwards to the middle part of the cavity of the classifying bed body section, and the upper section of the feeding well is higher than the upper edge opening of the overflow collecting section; a water distributor is arranged at the lower part of the underflow collecting section, and the water distributor is composed of an inverted umbrella-shaped turbulent flow plate and a plurality of nozzles uniformly distributed on the turbulent flow plate; and an underflow pipe orifice and a float valve which downwards penetrate through the bottom of the underflow collecting section are arranged in the concave center position of the turbulent flow plate, and a water drum cavity formed by the space between the bottom surface of the turbulent flow plate and the bottom of the underflow collecting section is communicated with a water supply system through pipelines.

The invention relates to the technical field of preparation of prepreg for copper-clad laminates, particularly to an impregnation method of a reinforced material. The impregnation method comprises the steps of pre-impregnation and main impregnation, wherein secondary impregnation is arranged between the pre-impregnation and the main impregnation; the secondary impregnation comprises the steps of introducing the reinforced material subjected to the pre-impregnation into a sealed secondary impregnation tank through a first rolling device, and taking the reinforced material subjected to secondary impregnation out of the secondary impregnation tank through a second rolling device, so as to perform the main impregnation; and flowing resin glue is arranged in the secondary impregnation tank, so as to achieve secondary impregnation for the reinforced material. The impregnation method is aimed at impregnating the reinforced material through the resin glue with filler, and the secondary impregnation is carried out on the reinforced material, so that the continuous impregnation of the resin glue for the reinforced material from the pre-impregnation process to the main impregnation process is achieved, the resin glue with filler is prevented from hardening on the surface layer of the reinforced material, the bubbles in the reinforced material are decreased, the impregnation capacity of the reinforced material is improved, and the performance of manufactured bonding sheets is improved; and the invention further relates to an impregnation device of the method.

The invention discloses a heat resistant, high-strength and wear resistant ball with high hardness for a ball grinder. The heat resistant, high-strength and wear resistant ball comprises the following components: C, Mn, Si, Ni, Cr, Mo, V, Nb, Ca, Zr, Cu, S, P, balance of Fe and inevitable impurities; the ultrasonic auxiliary laser-cladding technology is adopted to modify the surface of the wear resistant ball, wherein parameters of the ultrasonic auxiliary laser-cladding technology are as follows: a laser is a CO2 laser, the power is 1450-1650 W, the powder feeding rate is 0.4-0.5 g / min; the scanning speed is 3-5 mm / s, the layering thickness is 0.4-0.6 mm, the overlapping rate is 20-28%, the supersonic frequency is 17-19 kHz, the ultrasonic power supply current is 0.02-0.08 A and the applied cladding powder comprises 20-30 parts of WO3 powder, 30-50 parts of V2O5 powder, 50-80 parts of C powder, and 300-500 parts of Ni 60 self-melting powder. The wear resistant ball provided by the invention has excellent impact strength, hardness, heat resistance and wearing resistance.

The invention discloses an extraction method of jasmine flower essential oil and in particular relates to the technical field of essential oil extraction. The extraction method comprises the followingsteps: treating raw materials by adopting a cell wall breaking machine; then treating crushed jasmine flowers with the help of ultrasounds and enzymolysis; finally, extracting the essential oil fromthe pre-treated jasmine flowers by adopting a subcritical water extraction technology; carrying out centrifugal oil-water separation on an extracting solution and filtering a separated oil phase to prepare the finished-product jasmine flower essential oil. The extraction method disclosed by the invention has the advantages of low energy consumption and high extraction efficiency; the adopted extracting solution is water so that the extraction method is environmentally friendly and performance and structure of the essential oil are not changed.

The invention provides an intestinal spa method and device. In the intestinal spa process, hydrogen rich water is sprayed into the intestinal tract by means of a spray pipe, and the intestinal tract is cleaned; after the intestinal tract is cleaned, probiotics and prebiotics are sprayed into the intestinal track by means of the spray pipe, and the intestinal environment is adjusted; in the cleaning process, the direction and speed of hydrogen rich water flow can be adjusted by means of a water flow adjusting device, fixed-point precision cleaning is conducted, a spa mode can be set through a controller, overnight excrement can be effectively cleaned away, the intestinal function is improved, the defecation condition is improved, and intestinal health is better built.

The invention relates to a resourceful treatment method for wastewater with high sulfur content of the oil and gas field. The resourceful treatment method adopts negative-pressure desulfuration, chemical catalytic oxidation, flocculation settlement, organic membrane filtration, ozone catalytic oxidization, active carbon adsorption, novel electrodialyzer electrolyte separation and concentration andcrystallization to treat wastewater with high sulfur content of the oil and gas field. The resourceful treatment method realizes electrolyte separation and crystallization of salts in wastewater on the basis of effectively removing sulfides, suspended solids, organic substances and oil in wastewater, solves the difficult treatment problem of the wastewater with high sulfur content of the oil andgas field, and realizes recycling of the wastewater with high sulfur content of the oil and gas field on the basis of up-to-standard discharge.

The invention provides a method for reducing die-casting magnesium alloy melting weld porosity. When die-casting magnesium alloy melting is conducted, a magnesium alloy filling material containing an yttrium element is adopted for welding. During welding, the yttrium element and nitrogen have strong affinity and react with each other to generate a nitride, so that the number of nitrogen blowholes in a welding line is reduced; the yttrium element is used, so that solubility of hydrogen in a weld pool is increased, and the number of hydrogen blowholes is reduced; the yttrium element is used, so that fluidity of the weld pool is improved, overflow of gas such as nitrogen and hydrogen is accelerated, the weld porosity is reduced, and welding quality is improved. The method further has the advantages of being easy to operate, convenient, easy to implement and the like.

The invention relates to a method for reducing and degrading nitrates in water in situ. The method comprises the following steps: adding a reducing agent A into 200mL of waste water containing nitrateaccording to a certain molar ratio under the stirring action of magnetic force and at a certain pH; adjusting the temperature of a system after uniform mixing, adding a certain amount of metal alkalisolution into the mixed solution; continually stirring for 10 to 120 minutes in order to reduce the metal alkali solution into a corresponding metal element reducer in situ; rapidly reducing nitrateto generate ammonia. Through adoption of the method, an adopted denitration manner is rapid in reaction, is suitable for treating waste water containing nitrate at various concentrations, is high in nitrate removing rate; the nitrate in the water can be removed deeply, and a good application prospect is achieved.

The invention discloses a dual-beam laser rapid forming and manufacturing method based on laser ultrasound. The method is characterized by adopting a coaxial powder feeding manner through metal powderand laser, taking a laser heat source as a main heat source for melting metal powder and depositing and forming, exciting a laser melting pool by means of high-frequency pulse laser to generate an ultrasonic energy field so as to form a dense and fine-grained deposition layer texture structure in the melting and solidifying process. The method comprises the following steps: (1) adjusting relativepositions of main heat source laser and pulse oscillation laser and enabling energy of a pulse oscillation laser beam to act on a tail area of the molten pool; (2) setting a cooperative working modeof energy of a main heat source laser beam and the pulse oscillation laser beam; (3) setting an action mode of the pulse oscillation laser beam; and (4) starting forming and manufacturing programs andstarting forming and manufacturing processes until a manufacturing process is completed. The dual-beam laser rapid forming and manufacturing method based on laser ultrasound is capable of improving density of molten and solidified structures of materials, increasing heterogeneous nucleation rate in the melting pool, accelerating homogeneous nucleation and enabling grain growth in the solidifyingprocess of the melting pool to be obviously refined.

The invention relates to an automatic recycling device of a waste lead storage battery electrolyte. The automatic recycling device comprises a horizontal plate, wherein a groove is formed in the top of the horizontal plate, a bearing is fixedly arranged in the groove, a vertical post is connected with an inner circle of the bearing, a rotation container is fixedly arranged at the top of the vertical post, an opening is formed in the top of the rotation container, a driving motor is fixedly arranged at the top of the horizontal plate, a driving pulley is fixedly arranged on an output shaft of the driving motor, a driven pulley is fixedly arranged on the vertical post, the driving pulley and the driven pulley are connected via a belt, a discharging pipe is fixedly arranged on an outer wall near to the bottom of rotation container, a control valve is arranged on the discharging pipe, a clamping driving device is fixedly arranged on an inner wall of a left side near to the top of the rotation container, a horizontal post is fixedly arranged on an inner wall of a right side near to the top of the rotation container, a movable clamping arm is fixedly arranged at an end of the clamping driving device, a fixed clamping arm is fixedly arranged at an end of the horizontal post, and the movable clamping arm and the fixed clamping arm are correspondingly arranged. The automatic recycling device has the beneficial effect of high automation.

The invention discloses an electric power facility protection supervision and control system and a use method thereof, and belongs to the field of power management and control. The invention disclosesan electric power facility protection supervision and control system and a use method thereof. A one-way expansion air bag is arranged at a joint of a cable bus, upon occurrence of an accident, the one-way expansion air bag can be intelligently controlled to expand. Meanwhile, under the action of the non-elastic inhibition ropes which are transversely arranged, the one-way expansion air bag intelligently performs longitudinal expansion along the direction of the longitudinal connection part of the cable. Therefore, in the process of continuous expansion, the two plug-in type joints are disconnected, power-off effect is automatically realized. The situation that accidental dangerous cases continue to spread is prevented, secondary damage is reduced, and safety is improved. Meanwhile, wheninflation continues to be conducted, the one-way expansion air bag can burst, so that the pre-breaking ball point can be scattered outwards along with the non-elastic restraining rope and hit againsta nearby object to be broken, insulating oil can overflow from the interior of the pre-breaking ball point, and the insulativity and the safety after the cable bus is broken are effectively guaranteed.

The invention provides a stirring type reacting kettle which belongs to the technical field of machinery and solves the problems of low producing efficiency and low producing quality both caused by low stirring speed of the existing self-absorption type stirring reactor. The stirring type reacting kettle comprises a closed barrel body provided with a reacting cavity; the upper part of the barrel body is provided with a stirring rod, and the stirring rod is in an axle shape and can be inserted into the barrel body; the upper end of the stirring rod is provided with a motor which can drive the stirring rod to rotate; the bottom end of the stirring rod is fixedly connected with a stirring paddle; the middle part of the stirring rod is sleeved with a gas guiding casing and a plurality of stirring components used for speeding up the flow rate of reacting liquid; the adjacent two stirring components are fixedly connected together, and the inner cavities of the adjacent two stirring components are communicated; the gas guiding casing is arranged at the upper part of the stirring component; and a gas-liquid mixing component with an outlet is arranged between the gas guiding casing and the stirring component and used for the hybrid reaction of the gas and the liquid. The stirring type reacting kettle has the advantage of improving the moving rate of the reacting liquid. After reaction, the reacting liquid can be discharged in time so as to promote the full and rapid reaction of the reacting liquid and the reacting gas, so that the producing efficiency and the producing quality are improved.

The invention discloses hot and spicy sauce. The hot and spicy sauce is prepared from the following raw materials: rapeseed oil, peanut oil, old ginger, rhizoma kaempferiae, garlic, capsicum frutescens, onions, green Chinese onions, scallion stalk powder, fermented soybeans, chili pepper powder, white sesame seeds, white pepper powder, fermented glutinous rice, crystal sugar, white granulated sugar, high-alcohol-content baijiu, salt, chicken essence, monosodium glutamate, old mature vinegar, light soy sauce, dark soy sauce, dried chili pepper powder, dried small wild sea fishes / dried small wild sea shrimps. The 26 raw materials are selected after a number of tests so that a unique formula and strict preparation processes are adopted, and thus, a final product of the hot and spicy sauce harmoniously integrates spicy, aromatic, numbing, salty, sweet and delicious flavor, and is red and glossy in color and luster, as well as fine, smooth and chewy in taste; and the hot and spicy sauce isgood in color, aroma and taste. Moreover, the dried small wild sea fishes / dried small wild sea shrimps are added so that the hot and spicy sauce is healthier and more nutritious. The raw materials ofthe hot and spicy sauce are free of any food additives and preservatives; however, the normal-temperature storage life of the hot and spicy sauce can be up to 6 months or above. The hot and spicy sauce is a green, healthy and safe food. The invention further discloses a preparation technology of the hot and spicy sauce.

The invention provides a method of extracting active substances with high content of flavones from ginkgo leaves, which comprises the following steps of: putting powder of the ginkgo leaves into a calcium hydroxide solution with the pH (potential of hydrogen) value of 8 to 10 to process for 1-3min through microwave, wherein the material to solution ratio of the mass of the powder of the ginkgo leaves to the volume of the calcium hydroxide solution is 1:(3-5); adding 65-95vt% of ethanol solution of equal volume into the solution after the microwave treatment, treating the solution for 15-25minat the pressure of 200-300MPa to obtain a pretreatment liquid after the solution is sealed through a flexible package; heating and refluxing the pretreatment liquid for at least two times under the condition that the pH value is 8 to 11 through the ethanol solution with the concentration of 65-95vt%, mixing filtrate and regulating the pH value of the filtrate to 7, and centrifuging and separatingthe filtrate to obtain a liquid supernatant; adding 0.3-0.5wt% of vitamin E into the liquid supernatant, and uniformly mixing the mixture to obtain a supernatant sample; and adsorbing and analyzing the supernatant sample through AB-8 type macroporous absorption resin, and separating the mixture to obtain an analytical liquid, and obtaining the active substances of the ginkgo leaves after the analytical liquid is concentrated and lyophilized in vacuum. The yield of the active substances is as high as 25%, wherein the content of the flavones is as high as 22%.

The invention discloses a surface point vibration type vibrating rod, and belongs to the field of vibrating rods. According to the surface point vibration type vibrating rod, an outer micro-vibration hard shell is arranged and matched with the action of an air-blowing compression ring, the air-blowing compression ring is pinched during vibrating, compressed air in the air-blowing compression ring is dispersed into an air vibration cavity through a U-shaped air dispersion cavity, an air vibration rebounding ball is driven to impact the outer micro-vibration hard shell, so that the multi-point micro-vibration phenomenon occurs on the surface of the outer micro-vibration hard shell, on one hand, micro-vibration of concrete slurry near the vibrating rod is effectively accelerated, outward overflow of air near the vibrating end is accelerated, therefore small gaps near the vibrating rod are effectively eliminated, the concrete density after vibrating is higher, and the vibrating effect is better; and on the other hand, adhesion of concrete slurry on the surface of the concrete is effectively reduced, meanwhile, after vibration is finished, part of the adhered concrete slurry can fall off through vibration, and the influence of manual cleaning on the construction efficiency is effectively avoided.

The invention discloses a pipeline cleaning device. The pipeline cleaning device comprises a flow collecting cavity body provided with an installation connector, a gas working medium source for providing a gas-state cleaning working medium, a liquid working medium source for providing a liquid-state cleaning working medium and a particulate matter detection unit for detecting cleanliness, whereina cleaned pipeline can be connected with the flow collecting cavity body in a sealed mode through the installation connector; and the gas working medium source communicates with the flow collecting cavity body through a gas pipeline, the liquid working medium source is connected with the flow collecting cavity body through a liquid flow channel provided with a liquid pump, and the liquid working medium source can provide the liquid-state cleaning working medium for the cleaned pipeline through the flow collecting cavity body. The invention further discloses a cleaning method applying the pipeline cleaning device. The cleaning device and the cleaning method have the advantages of being high in cleaning efficiency, high in intelligent degree, scientific in cleaning strategy, and capable of meeting the need of cleaning for various types of pipelines and the like; and the fluid pipeline cleaning device further has the advantages of being good in responsiveness, long in service life, safe and reliable in system and the like.