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WO2017075892A1 - 冷焰火喷发设备 - Google Patents

冷焰火喷发设备 Download PDF

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Publication number
WO2017075892A1
WO2017075892A1 PCT/CN2015/099848 CN2015099848W WO2017075892A1 WO 2017075892 A1 WO2017075892 A1 WO 2017075892A1 CN 2015099848 W CN2015099848 W CN 2015099848W WO 2017075892 A1 WO2017075892 A1 WO 2017075892A1
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WO
WIPO (PCT)
Prior art keywords
metal powder
feeding
feed
erupting
lowering
Prior art date
Application number
PCT/CN2015/099848
Other languages
English (en)
French (fr)
Inventor
陈江波
周孝文
王同祥
余岭
Original Assignee
陈江波
周孝文
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 陈江波, 周孝文 filed Critical 陈江波
Priority to EP15894516.2A priority Critical patent/EP3184953B1/en
Priority to US15/318,531 priority patent/US10648782B2/en
Priority to AU2015397808A priority patent/AU2015397808A1/en
Publication of WO2017075892A1 publication Critical patent/WO2017075892A1/zh
Priority to AU2018236816A priority patent/AU2018236816B2/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/48—Screws or like rotary conveyors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/18—Simulations, e.g. pine cone, house that is destroyed, warship, volcano
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/26—Flares; Torches

Definitions

  • the present invention relates to the field of cold flame fire erupting devices, and in particular to a cold fireworks erupting device.
  • the cold fireworks fired on the stage are all used in a one-time cold flame tube, and a mixture of gunpowder and metal powder is placed in the cold flame tube and placed in the ignition head device.
  • the ignition device is controlled by an electrical connection to generate a spark to ignite the gunpowder.
  • the high temperature generated by the combustion of gunpowder ignites the metal powder mixed with it, and the high pressure generated by the combustion of the gunpowder realizes the eruption of the burning metal powder to achieve the effect of cold fire.
  • the ignition head device used in this cold flame tube is a dangerous item, which is easy to be disassembled by illegal elements for illegal use and causes a public safety accident.
  • the cold flame tube generates a relatively strong smoke and a pungent odor when it is discharged, which easily pollutes the environment.
  • There are also many shortcomings such as the cold fireworks emitted by the cold flame tube, which have short fireworks eruption time, uncontrollable fireworks eruption time, and non-recyclable cold flame tube.
  • the main object of the present invention is to provide a danger that is not dangerous to use.
  • Gunpowder, and cold-fired fire-spraying equipment capable of continuously controlling the metal powder and continuously feeding and feeding, making metal powder cutting and feeding stability easy to control, and effectively controlling the bursting effect of cold fireworks.
  • the present invention provides a cold flame fire erupting apparatus comprising: a feeding device for continuously discharging metal powder by rotating a continuous pushing, a feeding device for conveying a material by continuously pushing a metal powder discharged from a blanking device by rotation a heating mechanism attached to the feeding device for heating the metal powder during the conveying process of the feeding device, and a hair emitting device for igniting the metal powder heated by the heating mechanism to eject the hair; the output end of the feeding device is connected to the feeding device The output of the feeding device is connected to the hairspray device.
  • the unloading device includes a charging hopper for storing metal powder and a dropping funnel for discharging the metal powder, and a rotating material feeding mechanism is provided between the lower portion of the charging hopper and the upper portion of the dropping funnel, the rotation The material feeding mechanism continuously pushes the metal powder in the charging hopper into the dropping funnel by the circumferential rotation, the rotating material feeding mechanism is mounted on the charging hopper, and the output end of the rotating material feeding mechanism is directed toward the feeding funnel; The output of the funnel is connected to the feeder.
  • the rotary unloading mechanism includes a control lowering pipe for communicating the charging hopper and the lowering funnel, axially disposed along the control lowering pipe in the inner cavity of the control lowering pipe, and used to rotate the metal powder in the charging hopper Continuously feeding to the lowering roller shaft in the lowering funnel and the blanking drive motor for driving the rotation of the blanking roller shaft; the surface of the lowering roller shaft is provided with a continuous spiral-shaped blanking structure and/or a continuous spiral shape The recessed depression structure.
  • the helical blanking configuration has the same radial dimension or the radial dimension gradually decreases from the charging hopper to the funnel direction; and/or the helical blanking configuration has the same radial dimension or radial dimension. Gradually increase from the loading hopper to the funnel.
  • the feeding device comprises a feeding channel for receiving the continuously falling metal powder from the feeding device and sending the metal powder to the hair-spraying device, and the feeding channel is provided with a feeding port corresponding to the discharging port of the discharging device,
  • the feeding channel is provided with a rotating feeding roller which is arranged axially along the feeding passage and is used for continuously pushing the metal powder falling by the circumferential rotation to the hair discharging device.
  • the outer surface of the rotating feeding roller is provided with a continuous spiral feeding convexity. Construct and/or continuous helical feed recess configuration.
  • the helical feed projection configuration has the same radial dimension or the radial dimension gradually decreases from the feed port toward the hairspray device; and/or the helical feed recess configuration has the same radial dimension or radial dimension from the feed.
  • the mouth gradually increases toward the ejecting device.
  • the heating mechanism comprises a heating ring which is in close contact with the outer wall surface of the feeding channel, and the heating ring is distributed from the feeding port to the ejecting device; the heating ring is heated by alternating electric or electromagnetic induction heating, and the outer casing is provided for heat preservation and heat prevention.
  • the insulated casing is leaked; at least one end of the feeding passage is provided with a heat insulating gasket for heat preservation and heat leakage prevention.
  • the hairspray device includes an outlet pipe for ejecting the ignited metal powder by the air flow
  • the outlet pipe includes an inlet end for connecting the air outlet of the fan, an ignition portion for receiving and igniting the metal powder in a high temperature state, a jetting portion for ejecting the ignited metal powder and a spout for ejecting the cold fireworks outward
  • the ignition portion is disposed coaxially with the ejecting portion, and the first end of the ignition portion communicates with the air outlet of the fan through the inlet end, and the ignition portion
  • the second end communicates with the first end of the ejecting portion, and the second end of the ejecting portion communicates with the outside through the spout
  • the output end of the feeding device communicates from the side wall of the ignition portion to the ignition portion; and at least one layer is provided on the inner wall surface of the outlet tube A release layer for preventing metal powder from adhering to the inner wall surface of the outlet pipe and resistant to high temperatures.
  • the radial dimension of the ignition portion is smaller than the radial dimension of the ejecting portion, forming a flared structure from the ignition portion toward the ejecting portion; a smooth transition section or abrupt transition section is provided between the ignition portion and the eruption portion;
  • the inlet end is provided with a fan-port insulating gasket for preventing heat transfer from the outlet pipe to the fan, and/or an outlet insulating gasket for preventing the heat transfer in the outlet pipe from being transmitted to the spout of the outlet pipe.
  • the release layer is sprayed on the inner wall surface of the outlet pipe or an adhesive layer adhered to the inner wall surface of the outlet pipe; and the release layer is made of a polytetrafluoroethylene layer or a Teflon layer.
  • the cold flame fire erupting device of the invention does not need to use dangerous gunpowder, so there is no danger in the process of production, transportation and discharge, and the ignition head device belonging to dangerous articles is omitted, and there is no illegal element Disassembly and disassembly for illegal use causes public safety accidents.
  • continuous rotation is performed by the unloading device to convert the continuous rotational force It is an axial driving force to push the metal powder continuously to the conveying device; the metal powder dropped by the feeding device is conveyed by the feeding device through the continuous rotation to the ejecting device, and is attached to the conveying device during the conveying process.
  • the heating mechanism continuously heats the metal powder in the conveying device, so that the metal powder in the conveying process is continuously heated, thereby forming a high-temperature ignited metal powder; and the airflow formed by the erupting device drives the metal powder after high-temperature ignition Erupting outwards to form a bursting effect of cold fireworks.
  • the continuity and uniformity of the metal powder transportation can be ensured, and there is no phenomenon in which the metal powder is stopped during the transportation.
  • the metal powder conveying amount during the conveying process is always kept constant, so that the metal powder delivered to the cold flame fire erupting always maintains the quantitative and constant speed, and the cold fireworks can be well controlled.
  • the eruption effect is better to show the stage effect of the cold fireworks. To this end, this cold fireworks eruption device can be applied to a variety of indoor and outdoor stage, and even the interior of the home environment.
  • FIG. 1 is a schematic structural view of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention
  • FIG. 2 is a second structural schematic view of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention
  • FIG. 3 is a schematic structural view of a feeding device and a feeding device according to a preferred embodiment of the present invention
  • Figure 4 is a schematic structural view of a lowering roller shaft of a preferred embodiment of the present invention.
  • Figure 5 is a second structural schematic view of a lowering roller shaft according to a preferred embodiment of the present invention.
  • Figure 6 is a third structural schematic view of a lowering roller shaft according to a preferred embodiment of the present invention.
  • Figure 7 is a schematic view showing the structure of a control discharge pipe according to a preferred embodiment of the present invention.
  • Figure 8 is a schematic view showing the structure of a charging hopper according to a preferred embodiment of the present invention.
  • Figure 9 is a schematic structural view of a feeding device and a heating mechanism according to a preferred embodiment of the present invention.
  • Figure 10 is a second schematic structural view of a feeding device and a heating mechanism according to a preferred embodiment of the present invention.
  • Figure 11 is a schematic structural view of a rotary feed roller according to a preferred embodiment of the present invention.
  • Figure 12 is a second schematic structural view of a rotary feed roller according to a preferred embodiment of the present invention.
  • Figure 13 is a third schematic structural view of a rotary feed roller according to a preferred embodiment of the present invention.
  • Figure 14 is a third schematic structural view of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention.
  • Figure 15 is a schematic view showing the structure of a feeding device and a hair ejection device in accordance with a preferred embodiment of the present invention.
  • Cutting device 101, charging hopper; 102, feeding funnel; 103, rotating feeding mechanism; 1031, controlling feeding tube; 1032, feeding roller shaft; 1033, feeding driving motor; 104, spiral Blanking convex structure; 105, spiral blanking recess structure; 106, feeding opening; 2, feeding device; 201, feeding channel; 202, feeding port; 203, rotating feeding roller; 204, spiral feeding convex Structure; 205, spiral feeding recess structure; 3, heating mechanism; 301, heating coil; 302, thermal insulation sleeve; 303, thermal insulation gasket; 4, eruption device; 401, outlet tube; 4011, inlet end; 4012, ignited Department; 4013, eruption part; 4014, spout; 4015, smooth transition section; 402, fan; 403, anti-adhesion layer; 404, fan port insulation gasket; 405, outlet insulation gasket;
  • FIG. 1 is a schematic structural view of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention
  • 2 is a schematic structural view of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention
  • FIG. 3 is a schematic structural view of a feeding device and a feeding device according to a preferred embodiment of the present invention
  • FIG. 4 is a cutting roller shaft of a preferred embodiment of the present invention.
  • FIG. 5 is a second structural schematic view of a lower roll shaft according to a preferred embodiment of the present invention
  • FIG. 6 is a third structural schematic view of a lower roll shaft according to a preferred embodiment of the present invention
  • FIG. 7 is a preferred embodiment of the present invention.
  • FIG. 8 is a schematic structural view of a charging hopper according to a preferred embodiment of the present invention
  • FIG. 9 is a schematic structural view of a feeding device and a heating mechanism according to a preferred embodiment of the present invention
  • 2 is a schematic structural view of a feeding device and a heating mechanism according to a preferred embodiment of the present invention
  • FIG. 11 is a schematic structural view of a rotary feed roller according to a preferred embodiment of the present invention
  • FIG. 12 is a schematic structural view of a rotary feeding roller according to a preferred embodiment of the present invention.
  • FIG. 13 is a third structural schematic view of a rotary feed roller according to a preferred embodiment of the present invention
  • FIG. 14 is a schematic structural view of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention
  • III FIG. 15 is a schematic view of the feeding apparatus of the preferred embodiment of the discharger embodiment of the present invention.
  • the cold flame-fire erupting apparatus of the present embodiment includes a blanking device 1 for continuously discharging the metal powder 5 by rotating, and is continuously pushed by the unloading device 1 by rotation.
  • the feeding device 2 for conveying the material, the heating device 3 attached to the feeding device 2 for heating the metal powder 5 during the conveying process of the feeding device 2, and the metal for heating the heating mechanism 3
  • the powder 5 ignites the ejecting device 4 for erupting; the output end of the unloading device 1 is connected to the feeding device 2, and the output end of the feeding device 2 is communicated to the ejecting device 4.
  • the cold flame fire erupting apparatus of the present invention continuously rotates by the unloading device 1 (rotary cutting mechanism 103) to convert the continuous rotational force into an axial driving force, thereby pushing the metal powder 5 to be continuously conveyed in the direction of the feeding device 2.
  • the metal powder 5 that has dropped the blanking device 1 is continuously conveyed by the feeding device 2 (rotating feed roller 203) in the direction of the hairspray device 4, and is transported to the inside of the conveying device by the heating mechanism 3 attached to the conveying device.
  • the metal powder 5 is continuously heated so that the metal powder 5 during transportation is continuously warmed, thereby forming a high-temperature ignited metal powder 5 at the delivery outlet.
  • the cold flame fire ejecting apparatus further includes a bracket a (refer to FIG. 14) for supporting the unloading device 1, the feeding device 2, the heating mechanism 3, At least one of the hairspray devices 4.
  • the metal powder 5 is formed by mixing and mixing metal powder having a low ignition point at a certain ratio.
  • the metal powder 5 may be at least one metal powder of aluminum, iron, barium, magnesium, calcium, zirconium, copper, titanium; or the metal powder 5 may be aluminum, iron, barium, magnesium, calcium, zirconium, copper. At least one metal compound powder in titanium.
  • the metal powder 5 may also be a mixed powder in which the above metal powder is mixed with the above metal compound. That is, the metal powder 5 is gradually heated to a high temperature state (up to the ignition point) by the heating mechanism 3 during the conveyance in the feeding device 2, and is ignited by the contact of the conveying device 2 with the airflow (air), and is ignited. The metal powder is ejected by the air flow.
  • the unloading device 1 includes a charging hopper 101 for storing the metal powder 5 and a dropping funnel 102 for discharging the metal powder 5.
  • a rotary cutting mechanism 103 for continuously pushing the metal powder 5 in the charging hopper 101 into the lowering funnel 102 by circumferential rotation is provided between the lower portion of the charging hopper 101 and the upper portion of the dropping funnel 102.
  • the rotary unloading mechanism 103 is mounted on the charging hopper 101.
  • the output end of the rotary unloading mechanism 103 faces the lowering funnel 102.
  • the output end of the lowering funnel 102 is connected to the feeding device 2.
  • the unloading device 1 is provided with a rotary unloading mechanism 103 between the charging hopper 101 and the lowering funnel 102, and the rotary unloading mechanism 103 is rotated by the metal powder 5 in the charging hopper 101, and is rotated by the rotary cutting mechanism 103.
  • the surface uneven structure of the body drives the metal powder 5 to move toward the dropping funnel 102, thereby achieving continuous conveyance of the metal powder 5 from the charging hopper 101 to the dropping funnel 102. It is possible to ensure the continuity and uniformity of the conveyance of the metal powder 5, and there is no phenomenon in which the metal powder 5 is transported and stopped during the conveyance.
  • the conveying amount of the metal powder 5 in the conveying process is always kept constant, so that the metal powder 5 delivered to the cold fireworks is always kept at a constant and constant speed, and can be well controlled.
  • the effect of the cold fireworks is better to show the stage effect of the cold fireworks.
  • the output end of the dropping funnel 102 is directly connected to the feeding device 2, so that the fixed-speed quantitatively obtained metal powder 5 can be timely delivered to the hair-spraying device 4 to eject outward, ensuring the orderly progress of the cold-fire fire eruption without causing the accumulation of the metal powder 5. And the card stops.
  • the rotary unloading mechanism 103 includes a control lowering pipe 1031 for communicating the charging hopper 101 and the lowering funnel 102, and is axially arranged under the control of the lowering pipe 1031.
  • the inner cavity of the tube 1031 is used to rotate the inside of the charging hopper 101
  • the metal powder 5 is continuously fed to a lowering roll shaft 1032 in the lowering funnel 102 and a blanking drive motor 1033 for driving the lowering roll shaft 1032 to rotate.
  • the surface of the take-up roll shaft 1032 is provided with a continuous spiral-cut blank configuration 104 and/or a continuous spiral-cut recess configuration 105.
  • the blanking roller shaft 1032 is driven by the blanking drive motor 1033 to rotate in the metal powder 5 in the charging hopper 101, and the surface of the blanking roller shaft 1032 is used to drive the metal powder 5 to enter the lowering funnel 102 by controlling the lowering pipe 1031. In this, the blanking of the metal powder 5 is completed.
  • the amount of metal powder 5 to be fed can be controlled by controlling the gap between the lowering roller shaft 1032 and the control lowering pipe 1031.
  • the blanking speed of the metal powder 5 can be controlled by the rotational speed of the blanking roller shaft 1032.
  • the blanking drive motor 1033 employs a motor whose output speed is adjustable.
  • the rotational speed of the lowering roller shaft 1032 is controlled, thereby controlling the blanking speed and the amount of the metal powder 5 to change the effect of the cold flame fire erupting.
  • the surface of the lower roll shaft 1032 is provided with a continuous spiral blanking structure 104 and a continuous spiral blanking structure 105 to form a spiral blanking structure 104 and a spiral.
  • the alternate structure of the undercut recesses 105 is configured to form a large radial rise and fall of the surface of the blanking roll shaft 1032, which can increase the pushing force of the metal powder 5.
  • the surface of the lower roll shaft 1032 is provided with only a continuous spiral cut-out projection configuration 104.
  • the surface of the lower roll shaft 1032 is provided with only a continuous spiral recessed recess structure 105.
  • the continuous spiral-shaped blanking structure 104 is used to increase the contact area of the surface of the lowering roller shaft 1032 with the metal powder 5, and the surface friction of the lowering roller shaft 1032 is increased, thereby increasing the pair of the lowering roller shaft 1032.
  • the pushing force of the metal powder 5 in the axial direction, and due to the continuity of the surface structure, can also continuously and continuously provide the pushing force to the metal powder 5.
  • the continuous spiral-shaped recessed depression configuration 105 is used to increase the contact area of the surface of the blanking roller shaft 1032 with the metal powder 5, and the surface frictional force of the blanking roller shaft 1032 is increased, thereby increasing the blanking roller shaft 1032 to the metal powder 5
  • the pushing force in the axial direction and the concave structure can reduce the cross-sectional size of the conveying path, thereby reducing the material cost, reducing the friction probability of the lowering roller shaft 1032 and the peripheral mold, and increasing the service life.
  • the helical blanking configuration 104 has the same radial dimension or radial dimension that gradually decreases from the charging hopper 101 toward the funnel 102; and/or the helical blanking configuration 105
  • the radial dimensions are the same or the radial dimension gradually increases from the charging hopper 101 toward the funnel 102.
  • the pair of charging hoppers 101 are formed by using a structure having a radial size gradient. The agitation force of the inner cavity can eliminate the problem of long-term accumulation of the metal powder 5.
  • a pushing force that gradually decreases from the loading hopper 101 toward the funnel 102 can be formed, so that the metal powder 5 away from the dropping funnel 102 is gathered toward the feeding funnel 102, thereby improving the utilization of the metal powder 5 and preventing the metal.
  • the lower roll shaft 1032 employs a lead screw.
  • a uniform and stable concave-convex structure is formed on the surface of the screw rod to form a stable pushing force to the metal powder 5, thereby forming a continuous and uniform cutting.
  • the control lowering pipe 1031 is provided with an adjusting mechanism for adjusting the gap between the inner wall surface of the lower feeding pipe 1031 and the lowering roller shaft 1032, so that the metal powder 5 can be adjusted. The amount of material.
  • the adjusting mechanism can adopt a hoop and a hoop provided on the inner wall surface of the control lowering tube 1031, and adjust the gap between the inner wall surface of the lower feeding tube 1031 and the lowering roller shaft 1032 by controlling the tightening degree of the hoop or the hoop.
  • the adjusting mechanism can be adopted to: control the lowering tube 1031 body to have a movable wall surface that can move in the radial direction, and adopt a fully closed connection between the movable wall surface and the fixed wall surface, and the fully closed connection is made of a flexible material or an elastic material.
  • the control discharge pipe 1031 is sealed with the charging hopper 101 and the lowering funnel 102, and the sealing connection is a sealing film, a plastic film or an elastic film.
  • the blanking roller shaft 1032 is disposed on the lower bottom surface of the charging hopper 101, and the lowering control tube 1031 and the lower bottom surface of the charging hopper 101 are partially overlapped.
  • the lowering roll shaft 1032 is on the bottom surface of the charging hopper 101 so that the metal powder 5 can be fully utilized.
  • the bottom of the charging hopper 101 is provided with a movable bottom plate 1034 for adjusting the distance between the lowering roller shaft 1032 and the lower bottom surface of the charging hopper 101.
  • the distance between the movable bottom plate and the lower roll shaft 1032 can be controlled by adjusting the lifting and lowering of the movable bottom plate, thereby improving the utilization rate of the metal powder 5 and preventing the remaining amount of the metal powder 5 when it is unloaded.
  • the orientation of the output end of the rotary blanking mechanism 103 is adjustable. By adjusting the orientation of the output end, the output of the metal powder 5 at different angles is formed, thereby controlling the amount of the metal powder 5 to be discharged, thereby changing the effect of the cold flame fire eruption.
  • the feeding device 2 includes a metal powder 5 for receiving continuous falling from the blanking device 1 and metal.
  • the powder 5 is sent to the feed channel 201 of the hairspray device 4.
  • a feed port 202 corresponding to the discharge port 106 of the unloading device 1 is opened on the feed passage 201.
  • the feed passage 201 is provided with a rotary feed roller 203 which is axially arranged along the feed passage 201 and is used for continuously rotating the metal powder 5 falling from the blanking device 1 to the hair discharge device 4 by circumferential rotation.
  • the face is provided with a continuous helical feed projection configuration 204 and/or a continuous helical feed recess configuration 205 (see Figures 11-13).
  • the feeding device 2 is connected to a feed drive mechanism b for driving the operation of the feeding device 2.
  • the feeding device 2 passes through the corresponding arrangement of the feeding opening 106 and the feeding port 202, so that the metal powder 5 continuously falling from the feeding device 1 can directly and stably enter the feeding channel 201 and fall on the outer surface of the rotating feeding roller 203, through
  • the spiral projection structure and/or the continuous spiral recessed configuration of the surface of the rotary feed roller 203 forms a pushing force in the axial direction of the feed passage 201 to form a continuous pushing force against the metal powder 5, and a spiral projection structure and/or Or the continuous spiral recessed structure rotates the metal powder 5 to be stably and continuously pushed from the feed port 202 to the ignition region of the hairspray device 4, thereby ensuring continuity and uniformity of feeding of the metal powder 5.
  • the control of the cold fireworks eruption effect can be easily realized, thereby showing the visual effect of the cold fireworks on the stage.
  • the spiral feed projection structure 204 has the same radial dimension or radial dimension that gradually decreases from the feed port 202 toward the hairspray device 4; and/or spiral feed.
  • the recessed configuration 205 has the same radial dimension or a radial dimension that gradually increases from the feed port 202 toward the hairspray device 4. The force acting on the wall of the feed passage 201 by the rotary feed roller 203 can be reduced, and the service life of the feed passage 201 can be improved.
  • the heating mechanism 3 includes a heating coil 301 that is in close contact with the outer wall surface of the feed passage 201.
  • the heating coil 301 is distributed from the feed port 202 toward the hairspray device 4.
  • the heating ring 301 is heated by alternating electric heating or by electromagnetic induction, and its outer casing is provided with a heat insulating sleeve 302 for heat preservation and heat leakage prevention.
  • At least one end of the feed passage 201 is provided with a heat insulating gasket 303 for heat preservation and prevention of heat leakage.
  • the rotary feed roller 203 employs a cylindrical straight roller having the same radial dimension of the roller body, whereby the pushing force can be kept constant, so that the conveyance of the metal powder 5 can be uniform and stable.
  • the rotary feed roller 203 adopts a variable-section roller whose roller body diameter gradually decreases from the feed port 202 toward the hair-emitting device 4, such that the pushing force of the rotary feed roller 203 applied to the metal powder 5 is from the feed port.
  • the radial dimensions of the helical feed projection formation 204 are both In the same manner, the pushing force can be kept constant, so that the conveyance of the metal powder 5 can be made uniform and stable.
  • the radial dimension of the helical feed projection formation 204 is gradually reduced from the feed opening 202 toward the firing device 4 such that the pushing force applied by the rotary feed roller 203 to the metal powder 5 is ejected from the feed port 202.
  • the direction of the apparatus 4 is changed from large to small, and the pushing efficiency of the metal powder 5 can be improved, and the utilization rate of the metal powder 5 can be improved, and the accumulation in the feeding passage 201 can be effectively prevented.
  • the helical feed recess configuration 205 has the same radial dimension, whereby the push force can be kept constant, thereby enabling uniform and stable delivery of the metal powder 5.
  • the radial dimension of the spiral feed recess configuration 205 is gradually increased from the feed port 202 toward the hairspray device 4 such that the pushing force of the rotary feed roller 203 applied to the metal powder 5 is from the feed port 202 to the hairspray device.
  • the change in the direction of the 4 is large to small, and the pushing efficiency of the metal powder 5 can be improved.
  • the rotary feed roller 203 employs a screw. According to this, the structure is simple, and the pushing force can be kept constant, so that the conveyance of the metal powder 5 can be made uniform and stable.
  • the hair discharge device 4 includes an outlet tube 401 for ejecting the metal powder 5 after being ignited by the air current.
  • the outlet pipe 401 includes an inlet end 4011 for communicating with the air outlet of the blower 402, an ignition portion 4012 for receiving and igniting the metal powder 5 in a high temperature state, and an ejecting portion 4013 for ejecting the ignited metal powder 5 and The nozzle 4014 of the cold fireworks is sprayed outward.
  • the ignition portion 4012 is disposed coaxially with the eruption portion 4013.
  • the first end (lower end) of the ignition portion 4012 communicates with the air outlet of the blower 402 through the inlet end 4011.
  • the second end (upper end) of the ignition portion 4012 communicates with the first end (lower end) of the ejecting portion 4013, and the second end (upper end) of the erupting portion 4013 communicates with the outside through the spout 4014.
  • the output end of the feeding device 2 communicates from the side wall of the ignition portion 4012 into the ignition portion 4012.
  • the inner wall surface of the outlet pipe 401 is provided with at least one release layer 403 for preventing the metal powder 5 from adhering to the inner wall surface of the outlet pipe 401 and resistant to high temperatures.
  • the ejecting device 4 forms a cold flame spout by providing an outlet pipe 401.
  • One end of the outlet pipe 401 is connected to the fan 402, and is blown into the outlet pipe 401 by the fan 402 to form an air flow passage.
  • the heated metal powder 5 is sent to the outlet pipe 401.
  • the inside will be ignited and ejected outward with the air flow passage to form an erupting effect of the cold fireworks.
  • the fan 402 uses a fan with adjustable speed to control the cold flame The height of the fire eruption.
  • the radial direction of the ignition portion 4012 is smaller than the radial dimension of the ejecting portion 4013, and a flared structure in the direction of the ejecting portion 4013 is formed.
  • the metal powder 5 ignited in the outlet pipe 401 can be sucked out by the sudden suction of the airflow reducing diameter, so that the ignited metal powder 5 can be completely ejected from the cold flame device.
  • a smooth transition portion 4015 is provided between the ignition portion 4012 and the ejecting portion 4013, thereby effectively preventing the nodulation of the metal powder 5, and changing the flow state of the airflow so that the metal powder 5 in the outlet pipe 401 can be completely blown out.
  • the inlet end 4011 of the outlet pipe 401 is provided with a fan port heat insulating gasket 404 for preventing heat in the outlet pipe 401 from being transferred to the fan 402, and/or the nozzle 4014 of the outlet pipe 401 is provided for preventing the inside of the outlet pipe 401.
  • the smooth transition section 4015 can be replaced with a mutated transition section.
  • the release layer 403 may be sprayed on the inner wall surface of the outlet pipe 401, or may be adhered to the inner wall surface of the outlet pipe 401;
  • the release layer 403 is made of a polytetrafluoroethylene layer or a Teflon layer.
  • the screw structure (rotary cutting mechanism 103) is used instead of the push rod structure, and the uniform rotation speed of the driving drive motor 1033 and the feeding drive motor b is utilized, and the lowering funnel 102 is used.
  • the material buffering function and the control of the gap between the lowering tube 1031 and the lowering screw (the lowering roller shaft 1032) enable the metal powder 5 to be smoothly, continuously and smoothly slid into the feeding screw (rotating feeding roller 203). , which solves the problem of unstable and discontinuous cold flame cutting.
  • the metal powder 5 in the charging hopper 101 can be adjusted by adjusting the gap between the lowering screw (the lowering roller shaft 1032) and the bottom of the charging hopper 101.
  • the material is completely fed to the feeding device 2, thereby solving the problem of the remaining amount when the metal powder 5 is discharged.
  • the metal powder 5 can be uniformly, smoothly and continuously slipped from the lowering funnel 102 onto the feed screw (rotating feed roller 203), using the feed screw (rotating feed roller 203)
  • the screw structure and the uniform rotation speed of the feed drive motor b are controlled between the feed screw (rotary feed roller 203) and the feed pipe (feed passage 201)
  • the gap and the rotation speed for controlling the rotation of the feed screw (rotating feed roller 203) can control the uniformity, smoothness and continuity of the metal powder 5 on the feed screw (rotary feed roller 203), thereby solving the problem of the cold flame device erupting.
  • the problem of unstable flames and discontinuities are examples of the metal powder 5 that can be uniformly, smoothly and continuously slipped from the lowering funnel 102 onto the feed screw (rotating feed roller 203), using the feed screw (rotating feed roller 203)
  • the screw structure and the uniform rotation speed of the feed drive motor b are controlled between the feed screw (rotary feed roller 203) and the feed pipe (feed passage 201)
  • the unloading device 1 of the cold flame device adopts a geared motor and a screw structure to replace the electromagnet and the push rod structure to cut off the material, which can eliminate the noise generated when the electromagnet sucks the push rod, and greatly reduces the occurrence of cold flame cutting.
  • the cold flame device is driven by a sprocket chain structure, which not only works normally in harsh environments, but also greatly reduces noise generation.
  • the metal powder 5 discharged from the unloading device 1 is uniformly and continuously dispersed in the surface of the feed screw (rotating feed roller 203) and the thread groove through the dropping funnel 102, thereby increasing the contact area of the metal powder 5 with the heating mechanism 3, and
  • the heat retention of the heat insulating sleeve 302 of the heating coil 301 allows the temperature in the heating zone on the feed screw (rotating feed roller 203) to be constant, thus ensuring that the metal powder 5 is sufficiently ignited.
  • the heat insulating sleeve 302 of the heating ring 301 and the heat insulating gasket 303 of the screw rod can seal the heat of heating of the heating ring 301 in the cavity thereof, and not only ensure the temperature in the heating region on the feeding screw (rotating feeding roller 203) is constant, Moreover, it can prevent heat from passing through other areas and provide insulation.
  • the fan tube heat insulating gasket 404 and the outlet heat insulating gasket 405 are disposed at both ends of the outlet pipe 401 of the cold flame device, and the fan port heat insulating gasket 404 and the outlet heat insulating gasket 405 are made of heat-resistant insulating material to prevent heat transfer.
  • the area acts as a heat insulator and at the same time enables the internal temperature of the outlet pipe 401 to be constant to prevent the ignited metal powder 5 from being extinguished by cold.
  • the ignited metal powder 5 easily adheres to the metal surface, causing the nodulation region of the outlet pipe 401 and other regions to cause the nodulation of the metal powder 5, affecting the smooth discharge of the outlet pipe 401 and the aesthetic appearance of the flame. . Therefore, the inside of the outlet pipe 401 of the cold flame device is sprayed with a sprayed layer structure, and the sprayed layer is made of a non-stick, moisture-resistant, corrosion-resistant, wear-resistant, and friction coefficient, such as Teflon. , polytetrafluoroethylene, etc.
  • the outlet pipe 401 can effectively prevent the metal powder 5 after the ignition from adhering by spraying the anti-adhesive material. Its easy-to-crush area and other areas form nodules.
  • the outlet pipe 401 of the cold fireworks device adopts a variable-diameter structure in the vicinity of the feed screw (rotary feed roller 203), and the metal powder 5 ignited in the feed pipe (feed passage 201) can be used by the sudden suction force of the airflow reduction. The suction is performed so that the ignited metal powder 5 is completely blown out of the cold fireworks device.

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Abstract

一种冷焰火喷发设备，包括用于通过旋转连续推送金属粉末（5）进行连续下料的下料装置（1）、用于通过旋转连续推送由下料装置（1）下料的金属粉末（5）而进行输送物料的送料装置（2）、附着于送料装置（2）并用于对在送料装置（2）输送过程中的金属粉末（5）进行加热的加热机构（3）以及用于将由加热机构（3）加热后的金属粉末（5）点燃进行喷发的喷发装置（4），下料装置（1）的输出端连通至送料装置（2），送料装置（2）的输出端连通至喷发装置（4）。据此，在送料装置（2）输送过程中利用附着于输送装置上的加热机构（3）对输送装置内的金属粉末（5）进行持续加热，使得输送过程中的金属粉末（5）得到持续的加温，从而形成高温点燃的金属粉末（5）；利用喷发装置（4）的形成的气流带动高温点燃后的金属粉末（5）向外喷发，从而形成冷焰火的喷发效果。

Description

冷焰火喷发设备 技术领域
本发明涉及冷焰火喷发装置领域，特别地，涉及一种冷焰火喷发设备。
背景技术
现在各种舞台演出活动大都通过燃放冷焰火来烘托气氛，推动演出活动高潮的出现。在实现舞台效果方面，达到了很好的效果。目前舞台上燃放的冷焰火均用一次性燃放的冷焰火筒，冷焰火筒中装入火药和金属粉末的混合物并且置入点火头装置。冷焰火燃放时通过电气连接控制点火头装置产生火花点燃火药。火药燃烧产生的高温点燃与之混合的金属粉末，火药燃烧产生的高压实现燃烧金属粉末的喷发而达到冷焰火效果。由于有火药的存在，这种冷焰火筒在生产、运输以及燃放过程中均存在一定的危险性。这种冷焰火筒采用的点火头装置属于危爆物品，容易被不法分子拆装进行违法使用而造成公共安全事故。此外这种冷焰火筒在燃放时产生较为强烈的烟雾以及刺激性气味的气体，容易污染环境。还有这种冷焰火筒燃放的冷焰火具有焰火喷发时间短、焰火喷发时间不可操控以及冷焰火筒不可循环利用等诸多弊端。
现在也存在利用金属粉末持续供应金属粉末，利用激发金属粉末的方式进行持续产生冷焰火的冷焰火喷发设备，然而现有的冷焰火设备存在金属粉末下料和送料稳定性难以控制、存在间断性，不能够连续下料和送料，下料和送料不均匀，造成冷焰火的喷发效果不可控，从而失去其展现舞台可视效果的功能。
发明内容
有鉴于此，本发明的主要目的在于提供了一种不使用具有危险性的 火药，而且，针对金属粉末能够连续均匀下料和送料，使金属粉末下料和送料稳定性变得容易控制，能够有效控制冷焰火的喷发效果的冷焰火喷发设备。
本发明提供一种冷焰火喷发设备，包括用于通过旋转连续推送金属粉末进行连续下料的下料装置、用于通过旋转连续推送由下料装置下料的金属粉末而进行输送物料的送料装置、附着于送料装置并用于对在送料装置输送过程中的金属粉末进行加热的加热机构以及用于将由加热机构加热后的金属粉末点燃进行喷发的喷发装置；下料装置的输出端连通至送料装置，送料装置的输出端连通至喷发装置。
进一步地，下料装置包括用于储存金属粉末的装料料斗以及用于金属粉末下料的下料漏斗，装料料斗的下部与下料漏斗的上部之间设有旋转下料机构，该旋转下料机构通过周向旋转而将装料料斗内的金属粉末连续推送至下料漏斗内，旋转下料机构安装于装料料斗上，旋转下料机构的输出端朝向下料漏斗内；下料漏斗的输出端连通至送料装置。
进一步地，旋转下料机构包括用于连通装料料斗和下料漏斗的控制下料管、沿控制下料管轴向布置于控制下料管内腔并用于通过旋转将装料料斗内的金属粉末连续送至下料漏斗内的下料辊轴以及用于驱动下料辊轴旋转的下料驱动电机；下料辊轴表面设有连续的螺旋状下料凸起构造和/或连续的螺旋状下料凹陷构造。
进一步地，螺旋状下料凸起构造的径向尺寸相同或者径向尺寸从装料料斗向下料漏斗方向逐渐减小；和/或螺旋状下料凹陷构造的径向尺寸相同或者径向尺寸从装料料斗向下料漏斗方向逐渐增大。
进一步地，送料装置包括用于从下料装置接收连续下落的金属粉末并将金属粉末送至喷发装置的送料通道，送料通道上开设有与下料装置的下料口对应布置的进料口，送料通道内设有沿送料通道轴向布置并用于通过周向旋转将下料装置下落的金属粉末连续推送至喷发装置的旋转送料辊，旋转送料辊的外表面设有连续的螺旋状送料凸起构造和/或连续的螺旋状送料凹陷构造。
进一步地，螺旋状送料凸起构造的径向尺寸相同或者径向尺寸从进料口向喷发装置方向逐渐减小；和/或螺旋状送料凹陷构造的径向尺寸相同或者径向尺寸从进料口向喷发装置方向逐渐增大。
加热机构包括紧贴于送料通道外壁面的加热圈，加热圈从进料口向喷发装置方向分布；加热圈采用交变电加热，或采用电磁感应加热，且其外套设有用于保温和防止热量外泄的保温套管；送料通道的至少一端设有用于保温和防止热量外泄的隔热垫圈。
进一步地，喷发装置包括用于通过气流带动点燃后的金属粉末喷发的出口管，出口管包括用于连通风机的出风口的进口端、用于接收并点燃高温状态的金属粉末的点燃部、用于将点燃后的金属粉末喷发出去的喷发部以及用于向外喷发冷焰火的喷口；点燃部与喷发部同轴布置，点燃部的第一端通过进口端连通风机的出风口，点燃部的第二端连通喷发部的第一端，喷发部的第二端通过喷口连通外界；送料装置的输出端从点燃部的侧壁连通至点燃部内；出口管的内壁面上设有至少一层用于防止金属粉末粘附于出口管内壁面并且耐高温的防粘层。
进一步地，点燃部的径向尺寸小于喷发部的径向尺寸，形成由点燃部向喷发部方向的扩口结构；点燃部与喷发部之间设有平滑过渡段或突变过渡段；出口管的进口端上设有用于防止出口管内的热量向风机方向传递的风机口隔热垫圈，和/或出口管的喷口上设有用于防止出口管内的热量向外传递的出口隔热垫圈。
进一步地，防粘层采用喷涂于出口管内壁面的喷涂层或者采用粘附于出口管内壁面的粘贴层；并且，防粘层采用聚四氟乙烯层或者特氟龙层。
本发明具有以下有益效果：
本发明冷焰火喷发设备，由于不需要使用具有危险性的火药，因此，在生产、运输以及燃放过程中不存在危险，而且，省去了属于危爆物品的点火头装置，不存在被不法分子拆装进行违法使用而造成公共安全事故的问题。另外，通过下料装置进行连续的旋转，将连续的旋转力转变 为轴向的推动力，从而推动金属粉末向输送装置方向连续输送；通过送料装置通过连续旋转推送将下料装置掉落的金属粉末向喷发装置方向输送，并且在输送过程中利用附着于输送装置上的加热机构对输送装置内的金属粉末进行持续加热，使得输送过程中的金属粉末得到持续的加温，从而形成高温点燃的金属粉末；利用喷发装置的形成的气流带动高温点燃后的金属粉末向外喷发，从而形成冷焰火的喷发效果。据此，能够保证金属粉末输送的连续性和均匀性，输送过程中不存在金属粉末输送停顿的现象。并且通过稳定的旋转以及旋转体表面状况的恒定性，使得输送过程中的金属粉末输送量始终保持恒定，使得输送至冷焰火喷发的金属粉末始终保持定量和定速，能够很好的控制冷焰火的喷发效果，更好的展现冷焰火的舞台效果。为此，这种冷焰火喷发设备能够适用于各种室内外舞台、甚至家居环境内部使用。
除了上面所描述的目的、特征和优点之外，本发明还有其它的目的、特征和优点。下面将参照图，对本发明作进一步详细的说明。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是本发明优选实施例的冷焰火喷发设备的结构示意图之一；
图2是本发明优选实施例的冷焰火喷发设备的结构示意图之二；
图3是本发明优选实施例的下料装置与送料装置的结构示意图；
图4是本发明优选实施例的下料辊轴的结构示意图之一；
图5是本发明优选实施例的下料辊轴的结构示意图之二；
图6是本发明优选实施例的下料辊轴的结构示意图之三；
图7是本发明优选实施例的控制下料管的结构示意图；
图8是本发明优选实施例的装料料斗的结构示意图；
图9是本发明优选实施例的送料装置与加热机构的结构示意图之一；
图10是本发明优选实施例的送料装置与加热机构的结构示意图之二；
图11是本发明优选实施例的旋转送料辊的结构示意图之一；
图12是本发明优选实施例的旋转送料辊的结构示意图之二；
图13是本发明优选实施例的旋转送料辊的结构示意图之三；
图14是本发明优选实施例的冷焰火喷发设备的结构示意图之三；
图15是本发明优选实施例的送料装置与喷发装置的结构示意图。
附图标记说明：
1、下料装置；101、装料料斗；102、下料漏斗；103、旋转下料机构；1031、控制下料管；1032、下料辊轴；1033、下料驱动电机；104、螺旋状下料凸起构造；105、螺旋状下料凹陷构造；106、下料口；2、送料装置；201、送料通道；202、进料口；203、旋转送料辊；204、螺旋状送料凸起构造；205、螺旋状送料凹陷构造；3、加热机构；301、加热圈；302、保温套管；303、隔热垫圈；4、喷发装置；401、出口管；4011、进口端；4012、点燃部；4013、喷发部；4014、喷口；4015、平滑过渡段；402、风机；403、防粘层；404、风机口隔热垫圈；405、出口隔热垫圈；5、金属粉末。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，以下结合具体实施例，并参照附图，对本发明进一步详细说明。
图1是本发明优选实施例的冷焰火喷发设备的结构示意图之一；图 2是本发明优选实施例的冷焰火喷发设备的结构示意图之二；图3是本发明优选实施例的下料装置与送料装置的结构示意图；图4是本发明优选实施例的下料辊轴的结构示意图之一；图5是本发明优选实施例的下料辊轴的结构示意图之二；图6是本发明优选实施例的下料辊轴的结构示意图之三；图7是本发明优选实施例的控制下料管的结构示意图；图8是本发明优选实施例的装料料斗的结构示意图；图9是本发明优选实施例的送料装置与加热机构的结构示意图之一；图10是本发明优选实施例的送料装置与加热机构的结构示意图之二；图11是本发明优选实施例的旋转送料辊的结构示意图之一；图12是本发明优选实施例的旋转送料辊的结构示意图之二；图13是本发明优选实施例的旋转送料辊的结构示意图之三；图14是本发明优选实施例的冷焰火喷发设备的结构示意图之三；图15是本发明优选实施例的送料装置与喷发装置的结构示意图。
如图1、图2所示，本实施例的冷焰火喷发设备，包括用于通过旋转连续推送金属粉末5进行连续下料的下料装置1、用于通过旋转连续推送由下料装置1下料的金属粉末5而进行输送物料的送料装置2、附着于送料装置2并用于对在送料装置2输送过程中的金属粉末5进行加热的加热机构3以及用于将由加热机构3加热后的金属粉末5点燃进行喷发的喷发装置4；下料装置1的输出端连通至送料装置2，送料装置2的输出端连通至喷发装置4。本发明冷焰火喷发设备，通过下料装置1(旋转下料机构103)进行连续的旋转，将连续的旋转力转变为轴向的推动力，从而推动金属粉末5向送料装置2方向连续输送。通过送料装置2(旋转送料辊203)连续旋转推送将下料装置1掉落的金属粉末5向喷发装置4方向输送，并且在输送过程中利用附着于输送装置上的加热机构3对输送装置内的金属粉末5进行持续加热，使得输送过程中的金属粉末5得到持续的加温，从而在输送出口形成高温点燃的金属粉末5。利用喷发装置4的形成的气流带动高温点燃后的金属粉末5向外喷发，从而形成冷焰火的喷发效果。这种冷焰火喷发设备可适用于各种室内外舞台、甚至家居环境内部使用。可选地，冷焰火喷发设备还包括有支架a(参照图14)，用于支承下料装置1、送料装置2、加热机构3、 喷发装置4中的至少一个。金属粉末5采用燃点低的金属粉末，按一定比例加工混合而成。优选地，金属粉末5可以采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属粉末；或金属粉末5可以采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属化合物粉末。可选地，金属粉末5也可以采用上述金属粉末与上述金属化合物进行混合的混合粉末。也就是说，金属粉末5在送料装置2中被输送的过程中由加热机构3逐渐加热成高温状态(达到燃点)，在送料装置2的输送出口与气流(空气)接触而被点燃，点燃的金属粉末通过气流带动而喷发。
如图1、图2和图3所示，本实施例中，下料装置1包括用于储存金属粉末5的装料料斗101以及用于金属粉末5下料的下料漏斗102。装料料斗101的下部与下料漏斗102的上部之间设有用于通过周向旋转将装料料斗101内的金属粉末5连续推送至下料漏斗102内的旋转下料机构103。旋转下料机构103安装于装料料斗101上。旋转下料机构103的输出端朝向下料漏斗102内。下料漏斗102的输出端连通至送料装置2。下料装置1通过在装料料斗101与下料漏斗102之间设置旋转下料机构103，旋转下料机构103通过在装料料斗101内的金属粉末5中旋转，利用旋转下料机构103旋转体的表面凹凸结构带动金属粉末5朝向下料漏斗102方向移动，从而实现金属粉末5从装料料斗101到下料漏斗102的连续输送。能够保证金属粉末5输送的连续性和均匀性，输送过程中不存在金属粉末5输送停顿的现象。并且通过稳定的旋转以及旋转体表面状况的恒定性，使得输送过程中的金属粉末5输送量始终保持恒定，使得输送至冷焰火喷发的金属粉末5始终保持定量和定速，能够很好的控制冷焰火的喷发效果，更好的展现冷焰火的舞台效果。下料漏斗102的输出端直接连接送料装置2，使得定速定量获得金属粉末5可以及时的输送至喷发装置4向外喷发，保证冷焰火喷发的有序进行，不会造成金属粉末5的堆积和卡停。
另外，如图3所示，本实施例中，旋转下料机构103包括用于连通装料料斗101和下料漏斗102的控制下料管1031、沿控制下料管1031轴向布置于控制下料管1031内腔并用于通过旋转将装料料斗101内的 金属粉末5连续送至下料漏斗102内的下料辊轴1032以及用于驱动下料辊轴1032旋转的下料驱动电机1033。下料辊轴1032表面设有连续的螺旋状下料凸起构造104和/或连续的螺旋状下料凹陷构造105。通过下料驱动电机1033驱动下料辊轴1032在装料料斗101内的金属粉末5中旋转，利用下料辊轴1032表面凹凸结构带动金属粉末5通过控制下料管1031进入到下料漏斗102中，以此完成金属粉末5的下料。可以通过控制下料辊轴1032与控制下料管1031之间的间隙控制金属粉末5的下料量。可以通过下料辊轴1032的旋转速度控制金属粉末5的下料速度。可选地，下料驱动电机1033采用输出端转速可调的电机。通过改变电机的输出转速，控制下料辊轴1032的旋转速度，从而控制金属粉末5的下料速度和下料量，以此改变冷焰火喷发的效果。可选地，如图6所示，下料辊轴1032表面设有连续的螺旋状下料凸起构造104和连续的螺旋状下料凹陷构造105，形成螺旋状下料凸起构造104与螺旋状下料凹陷构造105交替的结构，从而形成下料辊轴1032表面大幅度的径向起落，能够增加对金属粉末5的推送力度。可选地，如图4所示，下料辊轴1032表面只设有连续的螺旋状下料凸起构造104。可选地，如图5所示，下料辊轴1032表面只设有连续的螺旋状下料凹陷构造105。如上所述，通过连续的螺旋状下料凸起构造104以增加下料辊轴1032表面与金属粉末5的接触面积，增加下料辊轴1032的表面摩擦力，从而增加下料辊轴1032对金属粉末5沿轴向的推送力，并且由于表面结构的连续性，也能够持续地和连续地提供对金属粉末5的推送力。同样，通过连续的螺旋状下料凹陷构造105以增加下料辊轴1032表面与金属粉末5的接触面积，增加下料辊轴1032的表面摩擦力，从而增加下料辊轴1032对金属粉末5沿轴向的推送力，并且采用凹陷的结构，可以减少输送路径的截面尺寸，从而降低材料成本，减少下料辊轴1032与周边模具的摩擦几率，增加使用寿命。
而且，本实施例中，螺旋状下料凸起构造104的径向尺寸相同或者径向尺寸从装料料斗101向下料漏斗102方向逐渐减小；和/或螺旋状下料凹陷构造105的径向尺寸相同或者径向尺寸从装料料斗101向下料漏斗102方向逐渐增大。据此利用径向尺寸渐变的结构形成对装料料斗101 内腔的搅动力，可以消除金属粉末5长期堆积的问题。可以形成由装料料斗101向下料漏斗102方向逐渐减小的推动力，使得远离下料漏斗102的金属粉末5均朝向下料漏斗102方向聚拢，从而提高金属粉末5的利用率，防止金属粉末5堆积到角落而无法利用的问题。
可选地，下料辊轴1032采用丝杆。利用丝杆表面均匀稳定的凹凸结构，从而形成对金属粉末5稳定的推送力，从而形成连续、均匀的下料。可选地，如图7、图8所示，控制下料管1031设有用于调节控制下料管1031内壁面与下料辊轴1032之间间隙的调节机构，从而可以调节金属粉末5的下料量。调节机构可以采用设于控制下料管1031内壁面的抱箍、环箍，通过控制抱箍或环箍的箍紧度，调节控制下料管1031内壁面与下料辊轴1032之间间隙。调节机构可以采用：控制下料管1031本体具有可沿径向移动的活动壁面，活动壁面与固定壁面之间采用全封闭连接，全封闭连接采用柔性材料或弹性材料。控制下料管1031与装料料斗101和下料漏斗102之间采用密封连接，密封连接采用密封膜、塑料膜或弹性膜。可选地，下料辊轴1032贴合于装料料斗101下底面布置，控制下料管1031与装料料斗101下底面部分重叠。下料辊轴1032处于装料料斗101的底面，使得金属粉末5可以得到充分的利用。可选地，装料料斗101的底部设有用于调节下料辊轴1032与装料料斗101下底面之间间距的活动底板1034。可以通过调节活动底板的升降，控制活动底板与下料辊轴1032之间的间距，从而提高金属粉末5的利用率，防止金属粉末5下料时的剩余量问题。可选地，旋转下料机构103的输出端的朝向可调。通过调节输出端的朝向，从而形成不同角度的金属粉末5输出，从而控制金属粉末5的下料量，以此改变冷焰火喷发的效果。
如图1、图2、图3、图9、图10、图14和图15所示，本实施例中，送料装置2包括用于从下料装置1接收连续下落的金属粉末5并将金属粉末5送至喷发装置4的送料通道201。送料通道201上开设有与下料装置1的下料口106对应布置的进料口202。送料通道201内设有沿送料通道201轴向布置并用于通过周向旋转将从下料装置1下落的金属粉末5连续推送至喷发装置4的旋转送料辊203。旋转送料辊203的外表 面设有连续的螺旋状送料凸起构造204和/或连续的螺旋状送料凹陷构造205(参照图11-图13)。可选地，送料装置2连有用于驱动送料装置2运行的送料驱动机构b。送料装置2通过下料口106与进料口202的对应布置，使得连续从下料装置1下落的金属粉末5可以直接、稳定的进入送料通道201并落于旋转送料辊203的外表面，通过旋转送料辊203表面的螺旋状凸起构造和/或连续的螺旋状凹陷构造形成送料通道201内轴向上的推送力，形成对金属粉末5持续不断的推送力，螺旋状凸起构造和/或连续的螺旋状凹陷构造旋转带动金属粉末5由进料口202向喷发装置4的点燃区域稳定地、持续地进行推送，从而保证对金属粉末5送料的连续性和均匀性。通过对旋转送料辊203旋转速度的控制，即可轻易的实现冷焰火喷发效果的控制，从而很好的展现冷焰火在舞台上的可视效果。
如图11-图13所示，本实施例中，螺旋状送料凸起构造204的径向尺寸相同或者径向尺寸从进料口202向喷发装置4方向逐渐减小；和/或螺旋状送料凹陷构造205的径向尺寸相同或者径向尺寸从进料口202向喷发装置4方向逐渐增大。能够减小旋转送料辊203对送料通道201壁体的作用力，能够提高送料通道201的使用寿命。
如图1、图9和图14所示，本实施例中，加热机构3包括紧贴于送料通道201外壁面的加热圈301。加热圈301从进料口202向喷发装置4方向分布。加热圈301采用交变电加热，或采用电磁感应加热，且其外套设有用于保温和防止热量外泄的保温套管302。送料通道201的至少一端设有用于保温和防止热量外泄的隔热垫圈303。
可选地，旋转送料辊203采用辊体径向尺寸完全相同的圆柱形直辊，据此推送力能够保持恒定，从而使得金属粉末5的输送能够均匀和稳定。可选地，旋转送料辊203采用辊体径向尺寸由进料口202向喷发装置4方向逐渐减小的变截面辊，这样使得旋转送料辊203施加到金属粉末5的推送力从进料口202向喷发装置4方向由大到小的变化，能够提高对金属粉末5的推送效率，也能够提高金属粉末5的利用率，有效防止在送料通道201内堆积。可选地，螺旋状送料凸起构造204的径向尺寸均 相同，据此推送力能够保持恒定，从而使得金属粉末5的输送能够均匀和稳定。可选地，螺旋状送料凸起构造204的径向尺寸由进料口202向喷发装置4方向逐渐减小，这样使得旋转送料辊203施加到金属粉末5的推送力从进料口202向喷发装置4方向由大到小的变化，能够提高对金属粉末5的推送效率，也能够提高金属粉末5的利用率，有效防止在送料通道201内堆积。可选地，螺旋状送料凹陷构造205的径向尺寸均相同，据此推送力能够保持恒定，从而使得金属粉末5的输送能够均匀和稳定。可选地，螺旋状送料凹陷构造205的径向尺寸由进料口202向喷发装置4方向逐渐增大，这样使得旋转送料辊203施加到金属粉末5的推送力从进料口202向喷发装置4方向由大到小的变化，能够提高对金属粉末5的推送效率。可选地，旋转送料辊203采用丝杆。据此，结构简单，推送力能够保持恒定，从而使得金属粉末5的输送能够均匀和稳定。
如图1、图14和图15所示，本实施例中，喷发装置4包括用于通过气流带动点燃后的金属粉末5喷发的出口管401。出口管401包括用于连通风机402的出风口的进口端4011、用于接收并点燃高温状态的金属粉末5的点燃部4012、用于将点燃后的金属粉末5喷发出去的喷发部4013以及用于向外喷发冷焰火的喷口4014。点燃部4012与喷发部4013同轴布置。点燃部4012的第一端(下端)通过进口端4011连通风机402的出风口。点燃部4012的第二端(上端)连通喷发部4013的第一端(下端)，喷发部4013的第二端(上端)通过喷口4014连通外界。送料装置2的输出端从点燃部4012的侧壁连通至点燃部4012内。出口管401的内壁面上设有至少一层用于防止金属粉末5粘附于出口管401内壁面并且耐高温的防粘层403。喷发装置4通过设置出口管401形成冷焰火喷口，出口管401的一端连通风机402，通过风机402向出口管401内鼓风，形成气流通道，经过加热后的金属粉末5送入到出口管401内会被点燃并随着气流通道向外喷发，从而形成冷焰火的喷发效果。通过在出口管401的内壁面粘附依用于防止高温的金属粉末5粘附于出口管401内的防粘层403，消除了出口管401由于点燃金属粉末5产生的结瘤而造成的堵塞。可选地，风机402采用转速可调的风机，以控制冷焰 火的喷发高度。
如图1、图14和图15所示，本实施例中，点燃部4012的径向尺寸小于喷发部4013的径向尺寸，形成由点燃部4012向喷发部4013方向的扩口结构。利用气流变径的突增吸力，可将出口管401内点燃的金属粉末5吸出，使得点燃后的金属粉末5能够被完全喷出冷焰火装置。点燃部4012与喷发部4013之间设有平滑过渡段4015，从而有效防止金属粉末5的结瘤，可以改变气流的流动状况，以使出口管401内的金属粉末5能够完全被吹出。出口管401的进口端4011上设有用于防止出口管401内的热量向风机402方向传递的风机口隔热垫圈404，和/或出口管401的喷口4014上设有用于防止出口管401内的热量向外传递的出口隔热垫圈405。可选地，平滑过渡段4015可以替换为突变过渡段。
如图1、图14和图15所示，本实施例中，防粘层403可以采用喷涂于出口管401内壁面的喷涂层，也可以采用粘附于出口管401内壁面的粘贴层；另外，防粘层403采用聚四氟乙烯层或者特氟龙层。
根据上述结构，冷焰火喷发设备下料时，采用丝杆结构(旋转下料机构103)取代推杆结构、利用下料驱动电机1033和送料驱动电机b的均匀转速、利用下料漏斗102的下料缓冲作用以及控制下料管1031与下料丝杆(下料辊轴1032)之间的间隙，可使金属粉末5能够均匀、连续和平稳的滑入送料丝杆(旋转送料辊203)上，进而解决了冷焰火下料不稳定和不连续的问题。
由于下料丝杆(下料辊轴1032)的丝杆结构，通过调节下料丝杆(下料辊轴1032)和装料料斗101底部的间隙，可使装料料斗101内的金属粉末5能够完全的下料至送料装置2中，进而解决了金属粉末5下料时剩余量的问题。
由于下料装置1的结构特性，可使金属粉末5能够均匀的、平稳的和连续的由下料漏斗102滑落至送料丝杆(旋转送料辊203)上，利用送料丝杆(旋转送料辊203)的丝杆结构和送料驱动电机b的均匀转速，通过控制送料丝杆(旋转送料辊203)和送料管(送料通道201)之间 的间隙以及控制送料丝杆(旋转送料辊203)旋转的转速，可控制送料丝杆(旋转送料辊203)上金属粉末5的均匀性、平稳性和连续性，进而解决了冷焰火装置喷发时火焰不稳和不连续的问题。
冷焰火装置的下料装置1采用减速电机和丝杆结构取代电磁铁和推杆结构下料，可消除电磁铁吸合推杆时产生噪声，极大程度上减小了冷焰火下料时产生的噪声。冷焰火装置采用链轮链条结构传动，不仅能在恶劣的环境中正常工作，而且极大程度上减小了噪声的产生。
下料装置1下料的金属粉末5通过下料漏斗102均匀、连续的分散在送料丝杆(旋转送料辊203)表面和螺纹槽内，增加了金属粉末5与加热机构3的接触面积，而且加热圈301的保温套管302的保温作用，可使送料丝杆(旋转送料辊203)上加热区域内的温度恒定，因此确保了金属粉末5得到充分点燃。
采用加热圈301的保温套管302和丝杆的隔热垫圈303可使加热圈301加热的热量密封在其腔体内，不仅确保送料丝杆(旋转送料辊203)上加热区域内的温度恒定，而且可杜绝热量传递其他区域，起到隔热作用。
点燃后的金属粉末5到达出口管401时，遇冷会产生金属粉末5熄灭的现象，影响火焰的状态及美观。因此，冷焰火装置的出口管401两端设置了风机口隔热垫圈404和出口隔热垫圈405，而风机口隔热垫圈404和出口隔热垫圈405采用耐热绝缘材料，可杜绝热量传递其他区域起到隔热作用，同时也能使出口管401内部温度恒定，避免点燃的金属粉末5遇冷熄灭。
点燃后的金属粉末5容易粘附在金属表面上，造成出口管401的易结流区域和其他区域产生金属粉末5的结瘤现象，影响出口管401气流的顺利喷出和火焰的美观等性能。因此，冷焰火装置的出口管401内侧采用喷有喷涂层结构，喷涂层采用具有不粘性、抗湿性、耐腐蚀性、耐磨损性以及摩擦系数小等特点的防粘材料，如特氟龙、聚四氟乙烯等。出口管401通过喷涂防粘材料，可有效防止点燃后的金属粉末5粘附在 其易结流区域和其他区域，形成结瘤现象。
由于金属粉末5有一定的重量，点燃后的金属粉末5不能全部被吹出出口管401，少量点燃的金属粉末5会落入风机402内，影响装置的使用性能。该冷焰火装置的出口管401在送料丝杆(旋转送料辊203)附近采用变径结构，利用气流变径的突增吸力，可将送料管(送料通道201)内点燃的金属粉末5能被吸出，使点燃后的金属粉末5被完全吹出该冷焰火装置。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种冷焰火喷发设备，其特征在于，
    包括用于通过旋转连续推送金属粉末(5)进行连续下料的下料装置(1)、用于通过旋转连续推送由所述下料装置(1)下料的所述金属粉末(5)而进行输送物料的送料装置(2)、附着于所述送料装置(2)并用于对在所述送料装置(2)输送过程中的所述金属粉末(5)进行加热的加热机构(3)以及用于将由所述加热机构(3)加热后的所述金属粉末(5)点燃进行喷发的喷发装置(4)，
    所述下料装置(1)的输出端连通至所述送料装置(2)，
    所述送料装置(2)的输出端连通至所述喷发装置(4)。
  2. 根据权利要求1所述的冷焰火喷发设备，其特征在于，
    所述下料装置(1)包括用于储存所述金属粉末(5)的装料料斗(101)以及用于所述金属粉末(5)下料的下料漏斗(102)，
    所述装料料斗(101)的下部与所述下料漏斗(102)的上部之间设有旋转下料机构(103)，该旋转下料机构(103)通过周向旋转而将所述装料料斗(101)内的所述金属粉末(5)连续推送至所述下料漏斗(102)内，
    所述旋转下料机构(103)安装于所述装料料斗(101)上，
    所述旋转下料机构(103)的输出端朝向所述下料漏斗(102)内；
    所述下料漏斗(102)的输出端连通至所述送料装置(2)。
  3. 根据权利要求2所述的冷焰火喷发设备，其特征在于，
    所述旋转下料机构(103)包括用于连通所述装料料斗(101)和所述下料漏斗(102)的控制下料管(1031)、沿所述控制下料管(1031)轴向布置于所述控制下料管(1031)内腔并用于通过旋转将所述装料料斗(101)内的金属粉末(5)连续送至所述下料漏斗(102)内的下料 辊轴(1032)以及用于驱动所述下料辊轴(1032)旋转的下料驱动电机(1033)；
    所述下料辊轴(1032)表面设有连续的螺旋状下料凸起构造(104)和/或连续的螺旋状下料凹陷构造(105)。
  4. 根据权利要求3所述的冷焰火喷发设备，其特征在于，
    所述螺旋状下料凸起构造(104)的径向尺寸相同或者径向尺寸从所述装料料斗(101)向所述下料漏斗(102)方向逐渐减小；和/或
    所述螺旋状下料凹陷构造(105)的径向尺寸相同或者径向尺寸从所述装料料斗(101)向所述下料漏斗(102)方向逐渐增大。
  5. 根据权利要求1所述的冷焰火喷发设备，其特征在于，
    所述送料装置(2)包括用于从所述下料装置(1)接收连续下落的所述金属粉末(5)并将所述金属粉末(5)送至所述喷发装置(4)的送料通道(201)，
    所述送料通道(201)上开设有与所述下料装置(1)的下料口(106)对应布置的进料口(202)，
    所述送料通道(201)内设有沿所述送料通道(201)轴向布置并用于通过周向旋转将所述下料装置(1)下落的所述金属粉末(5)连续推送至所述喷发装置(4)的旋转送料辊(203)，
    所述旋转送料辊(203)的外表面设有连续的螺旋状送料凸起构造(204)和/或连续的螺旋状送料凹陷构造(205)。
  6. 根据权利要求5所述的冷焰火喷发设备，其特征在于，
    所述螺旋状送料凸起构造(204)的径向尺寸相同或者径向尺寸从所述进料口(202)向所述喷发装置(4)方向逐渐减小；和/或
    所述螺旋状送料凹陷构造(205)的径向尺寸相同或者径向尺寸从所述进料口(202)向所述喷发装置(4)方向逐渐增大。
  7. 根据权利要求5所述的冷焰火喷发设备，其特征在于，
    所述加热机构(3)包括紧贴于送料通道(201)外壁面的加热圈(301)，
    所述加热圈(301)从所述进料口(202)向所述喷发装置(4)方向分布；
    所述加热圈(301)外套设有用于保温和防止热量外泄的保温套管(302)；
    所述加热圈(301)采用交变电加热，或采用电磁感应加热；
    所述送料通道(201)的至少一端设有用于保温和防止热量外泄的隔热垫圈(303)。
  8. 根据权利要求1所述的冷焰火喷发设备，其特征在于，
    所述喷发装置(4)包括用于通过气流带动点燃后的所述金属粉末(5)喷发的出口管(401)，
    所述出口管(401)包括用于连通风机(402)的出风口的进口端(4011)、用于接收并点燃高温状态的所述金属粉末(5)的点燃部(4012)、用于将点燃后的所述金属粉末(5)喷发出去的喷发部(4013)以及用于向外喷发冷焰火的喷口(4014)；
    所述点燃部(4012)与所述喷发部(4013)同轴布置，
    所述点燃部(4012)的第一端通过所述进口端(4011)连通所述风机(402)的出风口，
    所述点燃部(4012)的第二端连通所述喷发部(4013)的第一端，所述喷发部(4013)的第二端通过喷口(4014)连通外界；
    所述送料装置(2)的输出端从所述点燃部(4012)的侧壁连通至所述点燃部(4012)内；
    所述出口管(401)的内壁面上设有至少一层用于防止所述金属粉末(5)粘附于所述出口管(401)内壁面并且耐高温的防粘层(403)。
  9. 根据权利要求8所述的冷焰火喷发设备，其特征在于，
    所述点燃部(4012)的径向尺寸小于所述喷发部(4013)的径向尺寸，形成由所述点燃部(4012)向所述喷发部(4013)方向的扩口结构；
    所述点燃部(4012)与所述喷发部(4013)之间设有平滑过渡段(4015)或突变过渡段；
    所述出口管(401)的所述进口端(4011)上设有用于防止所述出口管(401)内的热量向所述风机(402)方向传递的风机口隔热垫圈(404)，和/或所述出口管(401)的所述喷口(4014)上设有用于防止所述出口管(401)内的热量向外传递的出口隔热垫圈(405)。
  10. 根据权利要求8所述的冷焰火喷发设备，其特征在于，
    所述防粘层(403)采用喷涂于所述出口管(401)内壁面的喷涂层或者采用粘附于所述出口管(401)内壁面的粘贴层；
    并且，所述防粘层(403)采用聚四氟乙烯层或者特氟龙层。
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US10948271B1 (en) * 2017-07-18 2021-03-16 Zhou Xiaowen Cold fireworks
US10852105B1 (en) 2017-11-22 2020-12-01 Zhou Xiaowen Machine for discharging a waterfall of low temperature sparks
CN108917493A (zh) * 2018-08-28 2018-11-30 刘兴超 一种可燃性金属粉末加热输送及喷发装置
CN108917493B (zh) * 2018-08-28 2024-05-31 刘兴超 一种可燃性金属粉末加热输送及喷发装置
CN109341434A (zh) * 2018-11-26 2019-02-15 杨程 冷焰火喷花机

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EP3184953A4 (en) 2018-01-17
US20180238664A1 (en) 2018-08-23
US10648782B2 (en) 2020-05-12
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