30results about How to "Improve melting effect" patented technology

The invention relates to the technical field of medical instruments, and discloses an isolation melting device and a pulp melting machine. The isolation melting device comprises a fixed frame which defines a mounting space; the movable support comprises a first support and a second support, one end of the first support is rotatably connected with one end of the second support, and the other end of the first support and the other end of the second support can move towards each other or away from each other; the bag body is provided with a bag opening and is connected with the first bracket and the second bracket; wherein the movable support can move into or out of the installation space, when the movable support moves into the installation space, the installation space limits the first support and the second support, the first support and the second support move oppositely, the bag body shrinks, and the area of the bag opening is reduced; when the movable support moves out of the installation space, the installation space relieves limiting of the first support and the second support, the first support and the second support move away from each other, the bag body expands, and the area of the bag opening is increased. Placement convenience of the plasma bag is improved, and heat exchange efficiency is improved.

The invention discloses green low-carbon high-rutting-resistance asphalt concrete and a preparation method thereof, and relates to the technical field of asphalt concrete. The technical scheme is as follows: RAP accounts for 30-40% of the mass of a new aggregate, 53-65 parts of the new aggregate, 3.2-4.1 parts of new asphalt, 4-6 parts of mineral powder, 0.3-0.4 part of high-density oxidized polyolefin, 0.05-0.1 part of a drying agent, 0.05-0.1 part of a lead salt stabilizer, 0.05-0.1 part of an auxiliary agent, 1.5-3 parts of reactive polyurethane, 3-6 parts of a polyester modifier, 0.5-2 parts of a silane coupling agent, 0.1-0.5 part of an antioxidant and 0.5-2 parts of a dispersing agent. Through the synergistic effect of high-density oxidized polyolefin and reactive polyurethane, the performance of aged asphalt in RAP is improved, the rutting resistance of asphalt concrete is improved, VOC emission is reduced, the sustainability of the material is enhanced, the long-term durability is improved, and the service life of a road is prolonged.

The invention discloses a purification method and a purification device for crystallized magnesium, and relates to the field of magnesium metal smelting. The method comprises the following steps: under the protection of an inert atmosphere, firstly carrying out pressure-applying melting treatment on a magnesium material to be smelted, and then carrying out pressure-applying filtering treatment on a product obtained after the melting treatment, so as to complete the flux-free smelting process of the magnesium material. And meanwhile, the metal magnesium liquid and most of the oxide shells are separated by utilizing the liquidity difference between the liquid metal magnesium and the solid oxide shells. Compared with a conventional smelting process without pressure application, the method has the advantages that the melting rate of the crystallized magnesium can be remarkably increased, most of oxide impurities are removed, a series of pollution problems caused by flux use are solved from the source, and low-cost, high-efficiency and high-quality smelting of the crystallized magnesium is realized.

The present application relates to a powder metallurgy equipment, comprising a machine platform, a stamping mechanism, a powder pouring mechanism, a lifting mechanism and a heating mechanism. The machine platform is provided with a feeding mechanism, a mold is placed inside the feeding mechanism, the stamping mechanism is arranged on the machine platform, at least part of the stamping mechanism is located above the mold, the stamping mechanism can be used to stamp the metal powder inside the mold, at least part of the powder pouring mechanism is slidably arranged on the machine platform, the powder pouring mechanism can slide above the mold, the powder pouring mechanism can pour the metal powder into the mold, the lifting mechanism is located at one end of the machine platform away from the stamping mechanism, the feeding mechanism can push the mold to the lifting mechanism, the lifting mechanism can drive the mold to slide and leave the machine platform along the height direction of the machine platform, the heating mechanism is arranged on the side of the machine platform away from the powder pouring mechanism, the powder pouring mechanism can transport the mold to the heating mechanism, so that the mold drives the parts to move as a whole, maintains the pressure in the mold, and thus improves the processing effect.

The invention discloses a heat storage and steam generation device of a fused salt energy storage boiler, and belongs to the technical field of fused salt energy storage. A supporting base is arranged at the bottom of the fused salt boiler, and evaporation equipment is arranged on a mounting boss; the evaporation equipment is communicated with the low-temperature molten salt bin through a discharge pipe, and the low-temperature molten salt bin is communicated with the molten salt furnace through a return pipe; a hot air cavity is formed in the top of the molten salt furnace, a vertical support is arranged on the outer wall of the molten salt furnace, a horizontal support is arranged at the top of the vertical support, and a hanging bracket located on the inner side of the vertical support is further arranged at the bottom of the horizontal support. A connecting rod is arranged between the horizontal brackets; a swing arm is movably arranged on the inner side of the vertical support, a sleeve is slidably arranged on the connecting rod, and a vertical sliding rod is arranged at the bottom of the sleeve. Inorganic salt can be heated through the molten salt furnace, high-temperature molten salt enters the evaporation equipment through the high-temperature pipe for power generation, the molten salt completing heat exchange can return to the molten salt furnace again through the backflow pipe, the structure is stable and effective, and the machining efficiency and practicability are improved.

The invention discloses a quartz sand smelting furnace with a preheating function, and relates to the technical field of smelting furnaces, the quartz sand smelting furnace comprises a smelting furnace, a supporting seat is rotatably connected to the outer side wall of the smelting furnace through a motor, two furnace doors are symmetrically and rotatably connected to the top of the smelting furnace, and a preheating turning assembly is arranged at the top of the smelting furnace and comprises a hydraulic rod; the hydraulic rod is fixedly connected to the top of the supporting seat, a preheating furnace is fixedly connected to the telescopic end of the supporting seat, and two discharging doors are symmetrically and rotationally connected to the bottom end of the preheating furnace; the preheated quartz sand enters the smelting furnace, the temperature fluctuation in the smelting furnace can be reduced, the continuity and stability of the working process of the smelting furnace can be kept, meanwhile, the initial temperature of the preheated quartz sand is high, and the preheated quartz sand can reach the melting point and be molten more quickly after entering the smelting furnace; therefore, the melting time of each batch of quartz sand in the melting furnace can be shortened, and meanwhile, the energy consumption required for heating the quartz sand can be reduced, so that the production efficiency of the melting furnace is improved.

The invention discloses optical glass, a prefabricated member thereof, an optical element and an optical instrument, and relates to the technical field of optical glass. The optical glass comprises the following components in percentage by weight: 2 to 15.2 percent of SiO2; 8 to 22 percent of B2O3; la2O3: 40% to 60%; 3 to 18 percent of Y2O3; zrO2: 1%-15%; 2 to 15 percent of Nb2O5; 0 to 9 percent of Gd2O3; znO: 0 to 10%; 0 to 10 percent of Ta2O5; 0 to 6 percent of TiO2; 0 to 10% of RO; 0 to 8% of Rn2O; 0 to 8 percent of WO3; 0 to 5 percent of Al2O3; 0 to 8 percent of Yb2O3; 0 to 5 percent of GeO2; 0-1% of a clarifying agent; (Gd2O3 + ZnO) / Y2O3 is 2.0 or less; the thermal expansion coefficient alpha-30 / 70 DEG C of the optical glass is below 85 * 10 <-7 > / K, and the abrasion degree FA is 75-120. The high-refractive-index optical glass obtained by the invention has relatively low thermal expansion coefficient and excellent abrasion degree.

This invention discloses a black-based blue-spotted glaze with an earthworm-like pattern and its preparation method. The glaze consists of a body, a black base glaze, and a blue-spotted glaze from the inside out. The raw materials for the black base glaze are: feldspar, calcite, calcium borate, dolomite, talc, barium carbonate, quartz, bentonite, zirconium silicate, rutile, cobalt oxide, manganese oxide, and iron oxide. The raw materials for the blue-spotted glaze are: feldspar, limestone, alumina, talc, barium sulfate, Datong clay, zinc oxide, quartz, and titanium dioxide. The preparation method includes: 1. Wet ball milling the black base glaze raw materials to obtain a black base glaze slurry; 2. Wet ball milling the blue-spotted glaze raw materials to obtain a blue-spotted glaze slurry; 3. Bisque firing the body; 4. Applying the black base glaze slurry to the body and drying it; 5. Applying the blue-spotted glaze slurry to the body and drying it; 6. Oxidation firing and reduction firing of the body, followed by natural cooling to obtain the black-based blue-spotted glaze. The raw material formula of this invention is reasonable and environmentally friendly, which can improve the mechanical properties of the glaze; the preparation method is simple and the yield is high.

The present invention provides a high-strength elastic capacitor current-sharing structure and a processing method. The capacitor current-sharing structure includes a capacitor current-sharing sheet and a current-sharing bearing plate. The capacitor current-sharing sheet is a metal sheet structure, the bottom of which is fixedly connected to a capacitor group, and the bottom of the capacitor group is grounded through a bottom plate; the current-sharing bearing plate is a metal plate structure, the bottom of which is provided with a welding core, and the current-sharing bearing plate and the capacitor current-sharing sheet are fixed by welding with the welding core. The capacitor current-sharing structure proposed by the present invention can both carry heavier electrical components and reduce capacitor installation stress, and the processing method proposed by the present invention can effectively improve the reliability and life of the capacitor.

The invention discloses an injection molding device for processing the plastic shell of an air flow meter, and the invention relates to the technical field of injection molding devices, including a composite mechanism. The injection molding device for processing the plastic shell of an air flow meter, through the composite mechanism design, the plastic raw material enters the inside of the composite shell from the feed port, the motor rotates the rotating shaft, and the rotation of the rotating shaft rotates the rotating frame and the rotating plate, thereby achieving the effect of expanding the stirring range, improving the mixing effect, thereby ensuring the stability and consistency of the quality of the injection molded product, and cutting the plastic raw material through the cutting block, thereby achieving the effect of dividing larger raw materials, making the plastic raw material particles uniform, and uniform raw material stirring can reduce the unstable factors in the production process, reduce the scrap rate, thereby improving the efficiency and economic benefits of injection molding production, and then falling downward from the holes on the surface of the support plate, and the raw material is output to the inside of the processing mechanism through the output mechanism, which is convenient for subsequent processing.

The invention relates to a hydrogen storage high-entropy alloy and a preparation method and application thereof, and belongs to the technical field of hydrogen storage alloys. The invention relates to a hydrogen storage high-entropy alloy. The chemical formula of the hydrogen storage high-entropy alloy is Mg < x > Ti < Zr > Ni < Cr > M < y >, wherein, xgt; 0, ygt; 0, and x + y = 2; m is at least one of Fe, Mn, Co, Cu and Al. The hydrogen storage high-entropy alloy MgxTiZrNiCrMy provided by the invention can be automatically activated at low pressure and room temperature, the initial hydrogen absorption amount of the alloy reaches 3.35 wt.%, the initial hydrogen desorption amount of the alloy reaches 2.69 wt.%, and the alloy has excellent reversible hydrogen absorption and desorption performance, not only can effectively absorb hydrogen, but also can effectively dehydrogenate, and also has good cycle stability.

A PK post-treatment system comprises a crusher, a polymer dryer, an extruder and an underwater granulator, a feed port of the crusher is connected with a PK polymerization unit, a discharge port of the crusher supplies materials to the polymer dryer, the polymer dryer is connected with a negative pressure source, a discharge port of the polymer dryer supplies materials to the extruder through a powder cooler, and the underwater granulator is connected with the powder cooler. A mixing feed hopper is further arranged at the feed end of the extruder and connected with an anti-aging agent source, and a discharge port of the extruder supplies materials to the underwater granulator through a melt pump. The device is simple in structure and convenient to operate, and PK products with stable quality can be obtained.

The invention relates to the field of optical films, and discloses a polyvinyl alcohol film as well as a preparation method and application thereof. The method comprises the following steps: S1, mixing polyvinyl alcohol and an additive to obtain a membrane preparation stock solution; and S2, extruding and shunting the membrane-making stock solution obtained in the step S1 to obtain slurry I and slurry II, mixing the slurry I with the membrane-making stock solution obtained in the step S1, and molding the slurry II. The preparation method of the polyvinyl alcohol film is simple in process and efficient, and the obtained polyvinyl alcohol film can have good uniformity and optical performance at the same time.

[Problem] To provide a curable silicone composition or the like having excellent handleability and curing properties during sealing due to good hot-melt properties and excellent melting properties, in addition to having excellent cured product mechanical strength and substrate bonding strength, making the composition suitable as a sealant for semiconductor devices. [Solution] Provided is a curable silicone composition comprising: (A) a hot-melt MDT-type organopolysiloxane resin having a specific siloxane unit ratio; (B) an organohydrogensiloxane compound; (C) a hydrosilylation catalyst; and (D) a functional inorganic filler in an amount of 400 to 3,000 parts by mass per 100 parts by mass of the total of components (A) to (C), wherein the curable silicone composition is solid at 25°C and has hot-melt properties at a temperature of 200°C or lower, along with the use thereof.

The invention discloses a combined strip-shaped weighing sensor, and relates to the technical field of sensors, the combined strip-shaped weighing sensor comprises a road surface and a strip-shaped weighing sensor, the strip-shaped weighing sensor is embedded in the road surface, an ice breaking mechanism is arranged on the outer wall of the strip-shaped weighing sensor, and through the arrangement of the ice breaking mechanism, when each vehicle passes through the strip-shaped weighing sensor, the ice breaking mechanism can break the ice when the vehicle passes through the strip-shaped weighing sensor. The strip-shaped weighing sensor can be lifted and pressed when the strip-shaped weighing sensor descends, ice attached to the outer side of the strip-shaped weighing sensor is effectively extruded with a fixing square plate beside the strip-shaped weighing sensor when the strip-shaped weighing sensor descends through back-and-forth lifting of the strip-shaped weighing sensor, the ice breaking effect is achieved, and once the ice on the outer wall of the strip-shaped weighing sensor is broken, the ice breaking effect is achieved. When the temperature is too low, ice at other positions of the strip-shaped weighing sensor is broken together, so that the problem that the weight of a vehicle cannot be accurately detected due to the fact that the strip-shaped weighing sensor is frozen can be avoided in an automatic ice breaking mode even in an icing state when the temperature is too low.

The invention discloses red and blue LED fluorescent powder for plant growth and a preparation method of the red and blue LED fluorescent powder. The chemical composition of the fluorescent powder is Na2Zr1-x-y (WO4) 3: xNi < 2 + > and yFe < 2 + >, x is the concentration of doped Ni < 2 + > and is equal to 0.01-0.1, and y is the concentration of doped Fe < 2 + > and is equal to 0.01-0.1. The fluorescent powder can emit 400-500nm high-intensity blue light and 660-700nm red light under the excitation of 320-360nm ultraviolet light, and can effectively promote the growth and development of plants corresponding to absorption spectrums of various pigments in the growth and photosynthesis of roots, stems and leaves of the plants. The raw materials of the fluorescent powder are all non-rare earth materials, so that the cost is low; the fluorescent powder is small in particle size, uniform in particle and high in luminous intensity; the raw materials and the product are non-toxic and environment-friendly, and are potential novel luminescent materials in the field of plant lighting LEDs.

The invention discloses a double-sided double-glass photovoltaic module laminating device. The device comprises a rack; the supporting seat is movably arranged on the machine frame; the lifting assembly is arranged on the rack, and the lifting assembly is used for driving the supporting seat to move up and down; the number of the moving mechanisms is two, and the two moving mechanisms are correspondingly arranged up and down; wherein one moving mechanism is arranged on the rack, and the other moving mechanism is arranged on the supporting seat; according to the invention, pressed products can be conveniently conveyed and transferred, and the product quality can be improved.

The present invention relates to a yellow high borosilicate glass composition, which belongs to the technical field of borosilicate glass, and comprises the following raw materials by weight: 60-70 parts of SiO2, 10-15 parts of B2O3, 12.1-29 parts of reinforcing materials and several parts of yellow colorants; wherein the reinforcing materials include La2O3, CaO, ZnO, Al2O3, Na2O and MoO3. The present invention optimizes the formula to enhance the ratio of La2O3, CaO and ZnO, thereby improving the wear resistance of the glass. Chrome yellow PbCrO4 is used for coloring, which is both beautiful and strengthens ultraviolet and blue light filtering. Heat treatment and gradient annealing processes are set to ensure that the glass has high purity and strong light transmittance. Increasing the Na2O content achieves a good fluxing effect, promotes the transformation of the boron-oxygen structure, and enhances the uniformity of the glass. Molten potassium salt bath treatment, introduction of K + Forms a protective film to improve surface smoothness, scratch resistance and corrosion resistance, and comprehensively optimizes glass performance.

The utility model belongs to the technical field of iron alloy processing, and particularly relates to an iron seed and iron powder melting and blending device which comprises a casting chute with a notch, a supporting assembly and a discharging mechanism arranged on the supporting assembly. The end part of the material conveying pipe is positioned above the opening of the casting chute, and a control assembly for controlling the material conveying pipe is arranged on the material conveying pipe. Iron seeds and iron powder are placed in the hopper, opening and closing of the conveying pipe are controlled through the control assembly, then the iron seeds and iron powder are controlled to fall into the casting chute and enter a casting pool along with molten iron in the falling process, a large amount of iron seeds and iron powder cannot be accumulated in a groove opening of the casting chute at a time, and the melting and blending effect of the iron seeds and iron powder in the molten iron is improved; and meanwhile, time consumption is shortened, and product quality is prevented from being affected by iron seed and iron powder residues.

The utility model discloses a high-mixing and high-efficiency injection molding screw rod and an injection molding machine. The injection molding screw rod comprises a mounting section, a blanking section, a separation section and a mixing section which are sequentially arranged in the conveying direction, the discharging section comprises a transition section and a conveying section, the discharging section is of a single-thread structure, and the thread pitch of the discharging section is kept unchanged; the bottom diameter of the transition section is gradually reduced, and the bottom diameter of the conveying section is kept unchanged. According to the high-mixing and high-efficiency injection molding screw provided by the utility model, the transition section is gradually reduced along the conveying direction, so that larger stress concentration caused by sudden change of the shaft diameter at the intersection of the mounting section and the blanking section is avoided, the risk that the position is twisted off is greatly reduced, and the anti-fatigue characteristic and the reliability of the screw are improved. Meanwhile, due to the existence of the transition section, the depth of the discharging groove can be properly increased, and the conveying capacity of raw materials of the discharging section is improved.

The application discloses a kind of resource utilization of ceramic glaze of raffinate acid, it is the powder prepared with raffinate acid as main raw material;Each raw material and its weight fraction included are as follows: raffinate acid 16-20 parts, citric acid 5-8 parts, alcohol additive 4-7 parts, water 5-10 parts.The application takes industrial by-product raffinate acid as main raw material, fully recycles and utilizes effective elements in raffinate acid, further combines the regulation and control mechanism based on citric acid and alcohol additive and segmented temperature control process, and can realize high value-added resource utilization of raffinate acid in glaze field, with significant economic and environmental benefits;The obtained ceramic glaze can give consideration to good sintering crystallization effect, gloss and mechanical property, and has wide applicability.

The application relates to the technical field of heat-preservation tube extrusion forming, in particular to an extrusion forming device for double-tube heat-preservation tube production, which comprises an extrusion cavity and a heating cylinder, the heating cylinder is fixedly sleeved on the outside of the extrusion cavity, a waste hopper and a raw material cylinder are fixedly installed at the top of the extrusion cavity, the waste hopper and the raw material cylinder are respectively located at the middle end and the tail end of the extrusion cavity, a sealing cover is rotatably installed in the waste hopper, and a plurality of spiral supporting rods are integrally formed on the top of the sealing cover. The spiral supporting rods rotating in the waste hopper can stir the waste material solution when the spiral supporting rods rotate, the melting effect of the waste material is improved, the particles and impurities in the solution are captured, the spiral rod two reciprocatingly moves up and down, the uniformity and efficiency of mixing are improved, the solution driving rotating drum is reversely rotated, the solution in the extrusion cavity is mixed at the rotating drum, and the uniformity of solution mixing is further improved.

The invention relates to the technical field of crushing equipment, and particularly discloses a rubber asphalt preparation device which comprises a preparation cylinder with an inlet and an outlet, a heating plate arranged at the bottom in the preparation cylinder, and a preparation mechanism arranged in the preparation cylinder, the preparation mechanism comprises a rotating shaft, a screening plate, a discharging disc, a plurality of cutters arranged in the circumferential direction of the rotating shaft at equal intervals, a through hole formed in the discharging disc and a driving assembly used for driving the rotating shaft to rotate. The rotating shaft is rotationally connected with the preparation cylinder; the screening plate is connected with the preparation cylinder; the discharging disc is fixedly connected with the rotating shaft, located below the screening plate and attached to the screening plate. The cutter is fixedly connected with the rotating shaft and located above the screening plate. The problem that rubber asphalt cannot be quantitatively discharged through an existing preparation device is solved.

The application discloses a co-rotating twin-screw extruder with periodically changed rotating speed ratio and a processing method thereof. The co-rotating twin-screw extruder with periodically changed rotating speed ratio comprises a barrel and a screw mechanism. The barrel adopts an 8-shaped structure with cylindrical holes penetrating each other in parallel with their axes. The screw mechanism is located in the barrel and comprises a first screw and a second screw. The first screw and the second screw rotate in the same direction, the average rotating speeds of the first screw and the second screw are equal, the rotating speeds of the first screw and the second screw periodically pulsate with time, the pulsation periods of the first screw and the second screw are the same, and the first screw and the second screw always rotate in meshing with each other during operation, so that the self-cleaning function is realized. The introduction of the periodic transient disturbance effect strengthens the reinforced melting, mixing and exhaust efficiency, and the co-rotating twin-screw extruder is especially suitable for low-temperature processing of a strong dispersion multi-phase material system.

The utility model discloses efficient melting equipment for high-purity iron powder, and relates to the technical field of iron powder melting. The device comprises a melting container, a storage tank and a supporting bottom plate, the outer surface of the melting container is slidably connected with a cover plate, a rotary vibration assembly is arranged in the cover plate, the top of the cover plate is fixedly communicated with a pipeline, the end, away from the cover plate, of the pipeline is fixedly communicated with the bottom end of the storage tank, and the bottom end of the storage tank is fixedly connected with a plurality of evenly-distributed connecting rods. The outer surface of the supporting bottom plate is fixedly connected with an electric telescopic machine, one end of an output shaft of the electric telescopic machine is fixedly connected with a cross plate, the end, away from the storage tank, of the connecting rod is fixedly connected with the top end of the cross plate, and a limiting adjusting assembly is arranged at the bottom end of the storage tank. The problems that excessive iron powder is added due to the fact that the adding speed is difficult to control during adding, and accumulation is caused by uneven distribution of the iron powder in a melting container due to the fact that an opening of an adding pipeline is fixed are solved.

The invention relates to the technical field of preparation of processed cheese, in particular to collagen casing-wrapped processed fish cheese easy to store at normal temperature and a preparation method of the collagen casing-wrapped processed fish cheese. Comprising the following components in parts by weight: 1000-1200 parts of cheese, 10-20 parts of cream, 70-150 parts of minced fish, 80-120 parts of protein powder, 35-50 parts of emulsifying salt, 5-20 parts of a compound stabilizer, 340-500 parts of water and 0.2-2 parts of lactic acid. The preparation process comprises the steps of chopping and mixing, heating and shearing, sterilizing, sausage filling, integrated treatment and gas filling and packaging, and the obtained product has a special flavor, is fine and smooth in taste and can be stored at normal temperature. The product storage conditions are improved while the flavor and taste of the product are improved, and the problems that the fish cheese product in the prior art is single in flavor, rough in taste, not fine enough, not easy to store at normal temperature and the like are solved.

The invention discloses a smelting method for reducing the combustion temperature of a tuyere whirlpool zone in an oxygen-enriched blast furnace, and the method comprises the following steps: preparing a mixed powder for blast furnace injection; taking 88-99 parts by weight of raw coal for injection and 1-12 parts by weight of an additive, grinding the mixed powder for injection after fully mixing; the raw coal for injection is prepared according to 40-50wt% of bituminous coal and 50-60wt% of anthracite; the additive is prepared according to 70-90wt% of blast furnace slag and 10-30wt% of magnesite; the iron-containing raw materials fed into the furnace are loaded into a furnace top material tank ... The iron raw materials include 70-75 parts of sintered ore, 22-29 parts of pelletized ore and 1-3 parts of scrap steel crushing material; the iron-containing raw materials are smelted in a manner of distributing the material on the furnace top from the outer ring to the inner ring and spraying mixed powder through the tuyere; wherein, the oxygen enrichment rate is 14-16%, the standard wind speed is 300-350m / s, the theoretical combustion temperature before the tuyere is 2300-2350℃, the pressure difference in the furnace is 0.160-0.180MPa, the wind temperature is 1200-1300℃, and the coal ratio is 180-250kg / t·Fe.

The invention relates to the field of livestock feed separation, in particular to a chicken neck production separation device facilitating feed taking, which comprises a separation table, a transmission rod movably sleeved on the outer side surface of the separation table, a closing plate detachably mounted on the inner side wall surface of the separation table, and a cooling table detachably mounted on the top surface of the separation table, and the cooling table is arranged at the edge of the top of the closing plate, and a hollow conical barrel is fixedly connected to the surface of the top of the cooling table. A water suction pump is used for sucking water in a water guide pipe, warm water is pumped from the interior of a warm water cavity in cooperation with the other end of the water guide pipe, the warm water is guided into a water spraying strip, the warm water is sprayed to the top surface of a chicken neck frozen block for thawing, and the effect of melting ice blocks in a large range through the temperature difference between the warm water and the ice blocks is achieved; in addition, the frozen water source is taken away during flowing, and the frozen cold water is guided into the separation table.

The utility model relates to the technical field of road construction equipment, in particular to road construction asphalt heating and melting equipment which comprises a bottom plate, the upper end face of the bottom plate is fixedly connected with a heating cylinder, the outer wall of the heating cylinder is fixedly connected with a plurality of heating cavities which are evenly distributed up and down, and a plurality of electric heating blocks are arranged in the heating cavities. A plurality of heating cavities are vertically distributed to form a plurality of heating areas, independent temperature control of different positions in the heating cylinder is achieved in cooperation with temperature sensors distributed in the plurality of heating areas, so that asphalt heating is more uniform and efficient, the asphalt is externally heated conveniently through an electric heating block, and meanwhile, a heat conduction cavity is formed in the heating cylinder; and the heat conduction oil is arranged in the heat conduction cavity and is a heat conduction carrier, so that the inner barrel is conveniently and uniformly heated, the asphalt is heated from the inside, the heating efficiency can be effectively improved, the asphalt is uniformly heated, and the influence of local heating on the extensibility and cohesiveness of the asphalt is avoided.

The invention relates to the technical field of foaming materials, in particular to a polypropylene foaming material and a preparation method thereof. The polypropylene foaming material comprises the following components in parts by weight: 88-96.5 parts of polypropylene resin, 0.5-2 parts of a sensitizing agent, 2-5 parts of a nucleating agent and 1-5 parts of other auxiliary agents. The preparation method of the polypropylene foaming material comprises the following steps: S101, uniformly mixing polypropylene resin, a sensitizing agent, a nucleating agent and a compound additive according to a ratio to obtain a mixed material; s103, feeding the mixed material into an extruder, and carrying out extrusion granulation; s105, carrying out irradiation crosslinking on the extrudate obtained in the step S103; and S107, performing blow molding, extruding and foaming to obtain the polypropylene foaming material. The polypropylene foaming material is high in foaming ratio.