WO2017075895A1 - 喷发冷焰火的方法 - Google Patents

喷发冷焰火的方法 Download PDF

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Publication number
WO2017075895A1
WO2017075895A1 PCT/CN2015/099861 CN2015099861W WO2017075895A1 WO 2017075895 A1 WO2017075895 A1 WO 2017075895A1 CN 2015099861 W CN2015099861 W CN 2015099861W WO 2017075895 A1 WO2017075895 A1 WO 2017075895A1
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WO
WIPO (PCT)
Prior art keywords
metal powder
ejecting
feeding device
fireworks
cold
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PCT/CN2015/099861
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English (en)
French (fr)
Inventor
陈江波
周孝文
王同祥
余岭
罗敏
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陈江波
周孝文
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Publication of WO2017075895A1 publication Critical patent/WO2017075895A1/zh

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    • 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
    • F42B4/24—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes characterised by having plural successively-ignited charges

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  • the present invention relates to the field of cold flame fire eruption technology, and in particular to a method of ejecting cold fireworks.
  • stage performances are set off by the use of cold fireworks to promote the atmosphere of the performance. In terms of achieving the stage effect, it achieved good results.
  • 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. Due to the presence of gunpowder, there is a certain risk in the production, transportation and discharge of such cold flame tubes.
  • 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.
  • the cold fireworks emitted by the cold flame tube are all discharged at one time, so there are many disadvantages such as short fireworks eruption time, uncontrollable fireworks eruption time, and non-recyclability of the cold flame tube.
  • the invention provides a method for ejecting cold fireworks, characterized in that it comprises the following steps: a, preparing a metal powder for forming a cold fire; b, using a blanking device to uniformly and continuously discharge the metal powder; c, transporting the metal powder discharged by the blanking device by a feeding device, and feeding The metal powder is continuously heated during the conveying process of the device; d.
  • the flowing metal gas in the ejecting device drives the metal powder ignited at the conveying outlet of the feeding device to eject outward to form a cold fireworks.
  • the metal having a low ignition point is selected for powder rolling or powder forging to form a metal powder.
  • the metal powder in the step a uses at least one metal powder of aluminum, iron, barium, magnesium, calcium, zirconium, copper, titanium; or the metal powder is aluminum, iron, barium, magnesium, calcium, zirconium, copper. At least one metal compound powder in titanium.
  • the metal powder content percentage in the metal powder is 60% to 99%.
  • the metal powder in the step a has a particle size of 60 mesh to 120 mesh.
  • the blanking device for the metal powder in the step b includes a blanking pipe constituting a part of the blanking passage and a feeding screw rod for pushing the metal powder in the discharging pipe, and the spiral groove of the surface of the lowering screw rod is driven by the motor The spiral rotation is performed to continuously push the prepared metal powder to the feeding device.
  • step c the metal powder discharged by the blanking device enters the feeding device and is evenly distributed around the feeding screw of the feeding device, and the spiral groove of the surface of the feeding screw is driven by the motor to spirally rotate the metal to The powder is delivered to a zone that is continuously heated.
  • the metal powder around the feed screw is continuously heated by the heating coil provided by the feeding device to form a metal powder in an ignited state.
  • the heating coil is heated by alternating electric power or by electromagnetic induction heating; the heating coil is sealed by the heat insulating sleeve to prevent heat from leaking out.
  • step d a flowing airflow is generated by the impeller, and the ignited metal powder is sprayed along the ejecting channel of the ejecting device to form a fireworks discharge effect; by controlling the rotational speed of the impeller, controlling the intensity of the airflow, thereby controlling the fireworks The height of the discharge.
  • the method of ejecting cold fireworks uses metal elements with low ignition points to prepare metal powders for easy ignition by external heating.
  • the metal powder can be continuously and continuously entered into the following processes to ensure the uniformity, smoothness and continuity of the fireworks of the cold fireworks.
  • the metal powder in the conveying process is heated during the uniform and continuous conveying process of the metal powder, so that the metal powder can be uniformly heated and excited to be ignited after continuous heating, and the ignited metal powder is ejected through the erupting airflow in the eruption channel. , thus forming the eruption effect of the cold fireworks.
  • the height of the cold flame can be adjusted to meet the needs of different environments.
  • the entire cold flame fire stimulates the ignition process, which is combined with mechanical heating and electric heating to replace the traditional process using gunpowder ignition, eliminating the dangers in production, transportation and discharge. And the gas does not generate smoke and irritating odor during the discharge, and the discharge process is green. It can be ejected for a long time, and the fireworks eruption time can be flexibly controlled, and it can be applied to various stage environment discharges and home environment discharge.
  • 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 schematic structural view of a feeding device and a feeding device according to a preferred embodiment of the present invention
  • FIG. 3 is a schematic structural view of a feeding device and a heating mechanism according to a preferred embodiment of the present invention
  • Figure 4 is a schematic view showing the structure of a feeding device and a hair ejection device according to a preferred embodiment of the present invention
  • Figure 5 is a block diagram showing the implementation steps of a method of ejecting a cold fire in a preferred embodiment of the present invention.
  • FIG. 1 is a schematic view showing the structure of a cold flame fire ejecting apparatus according to a preferred 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 rotation, and a metal for continuously feeding the material to be unloaded by the unloading device 1 by rotation.
  • the ignition device 4 for erupting is ignited; the output end of the unloading device 1 is communicated 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), and converts the continuous rotational force into an axial driving force, thereby pushing the metal powder 5 continuously to the feeding device 2 ( Refer to Figure 2).
  • the metal powder 5 dropped from the unloading device 1 is conveyed by the feeding device 2 (rotating feed roller 203) in the direction of the ejecting device 4, and the conveying device is attached to the conveying device by the heating mechanism 3 attached to the conveying device.
  • the metal powder 5 therein 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 airflow formed by the ejecting device 4 drives the high-temperature ignited metal powder 5 to eject outward, thereby forming an erupting effect of the cold fireworks.
  • the cold fireworks eruption apparatus of the present invention can be applied to various indoor and outdoor stages, and even to the interior of a home environment.
  • FIG. 2 is a schematic structural view of a feeding device and a feeding device according to a preferred embodiment of the present invention
  • FIG. 3 is a schematic structural view of a feeding device and a heating mechanism according to a preferred embodiment of the present invention
  • FIG. 4 is a feeding device and an erupting device according to a preferred embodiment of the present invention. Schematic diagram of the structure of the device.
  • 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 cutting mechanism 103 is oriented toward the blanking Inside the 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 blanking mechanism 103 includes a lowering pipe 1032 for communicating the charging hopper 101 and the lowering funnel 102, and is axially disposed along the lowering pipe 1032 in the inner cavity of the lowering pipe 1032 for passage.
  • the metal powder 5 in the charging hopper 101 is continuously fed to a lowering roller shaft (feeding screw) 1031 in the lowering funnel 102 and a blanking drive motor 1033 for driving the rotation of the lowering roller shaft 1031.
  • the surface of the lower roll shaft 1031 is provided with a continuous spiral blanking configuration and/or a continuous spiral blanking configuration.
  • the blanking roller shaft 1031 is driven by the blanking drive motor 1033 to rotate in the metal powder 5 in the charging hopper 101, and the metal powder 5 is driven to the lowering funnel 102 through the blanking pipe 1032 by the convex-concave structure on the surface of the blanking roller shaft 1031. In this, the blanking of the metal powder 5 is completed.
  • the amount of the metal powder 5 to be discharged can be controlled by controlling the gap between the lower roll shaft 1031 and the lower feed pipe 1032.
  • the blanking speed of the metal powder 5 can be controlled by the rotational speed of the blanking roller shaft 1031.
  • the blanking drive motor 1033 adopts a geared motor with an adjustable output speed. By changing the output rotational speed of the geared motor, the rotational speed of the lowering roller shaft 1031 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 feeding device 2 includes a feeding passage 201 for receiving the continuously falling metal powder 5 from the unloading device 1 and feeding the metal powder 5 to the hair discharge device 4.
  • Feed pass The feed port 202 disposed corresponding to the discharge opening 106 of the blanking device 1 is opened on the road 201.
  • the feed passage 201 is provided with a rotary feed roller (feed screw) 203 which is axially arranged along the feed passage 201 and is used for continuously rotating the metal powder 5 falling from the unloading device 1 to the hair discharge device 4 by circumferential rotation.
  • the outer surface of the rotating feed roller 203 is provided with a continuous helical feed projection configuration and/or a continuous helical feed recess configuration.
  • the feeding device 2 is connected with a feed drive mechanism for driving the rotation of the rotary feed roller 203.
  • 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 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 provided with a thermal insulation sleeve 302 for holding and preventing heat leakage.
  • 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 hairspray 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 an air outlet of the fan (turbine) 402, an ignition portion 4012 (ignition region) for receiving and igniting the metal powder 5 in a high temperature state, and a metal powder 5 for igniting
  • the ejected portion 4013 is ejected and a spout 4014 for ejecting the cold fireworks 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.
  • At least one layer is provided on the inner wall surface of the outlet pipe 401 for preventing the metal powder 5 from adhering to the outlet pipe 401.
  • 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 is in contact with the airflow (air) and is ignited and ejects outward along with the airflow passage, thereby forming an eruption effect of the cold fireworks.
  • the release preventing layer 403 for preventing the high temperature metal powder 5 from adhering to the inside of the outlet pipe 401 on the inner wall surface of the outlet pipe 401 the clogging of the outlet pipe 401 due to the nodulation caused by the ignition of the metal powder 5 is eliminated.
  • the fan 402 employs a fan with an adjustable speed to control the eruption height of the cold fire.
  • the radial dimension of the ignition portion 4012 may be set to be smaller than the radial dimension of the ejecting portion 4013, and a flared structure in the direction of the ejecting portion 4013 by the ignition portion 4012 may be 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.
  • FIG. 5 is a block diagram showing the implementation steps of a method of ejecting a cold fire in a preferred embodiment of the present invention.
  • the method for ejecting cold fireworks of the present embodiment includes the following steps: a, preparing a metal powder for forming a cold fire flame; b, uniformly and continuously discharging the metal powder by a blanking device (metal powder) (c), the metal powder discharged by the blanking device is conveyed by a feeding device (metal powder conveying), and the metal powder is continuously heated during the conveying process of the feeding device (metal powder heating); The metal powder ignited by the conveying outlet of the feeding device is driven by the flowing airflow in the ejecting device to form a cold fireworks (ejection).
  • the metal having a low ignition point may be selected for powder compaction or powder forging to form a metal powder (metal powder preparation), and then, The prepared metal powder is stored in a cool, dry and sealed container for use (metal powder storage).
  • the metal powder is prepared by using a metal element with a low ignition point to facilitate ignition by external heating to reach the ignition point, and then contact with air.
  • the prepared metal powder is stored in a cool, dry and sealed container for continuous discharge.
  • the metal powder can be continuously and continuously entered into the following processes to ensure the uniformity, smoothness and continuity of the fireworks. Heating the metal powder during transport in a uniform, continuous transport of the metal powder enables the metal powder to be uniformly heated and ignited after continuous heating.
  • the ignited metal powder is ejected outward through the erupting airflow in the eruption channel to form an erupting effect of the cold fireworks.
  • the height of the cold flame can be adjusted to meet the needs of different environments.
  • the entire cold flame fire stimulates the ignition process, which is combined with mechanical heating and electric heating to replace the traditional process using gunpowder ignition, eliminating the dangers in production, transportation and discharge.
  • the gas does not generate smoke and irritating odor during the discharge, and the discharge process is green. And it can be ejected for a long time, and the fireworks eruption time can be flexibly controlled.
  • This method of ejecting cold fireworks can be applied to various stage environment discharges and home environment discharges.
  • the metal powder in the step a uses at least one metal powder of aluminum, iron, lanthanum, magnesium, calcium, zirconium, copper, titanium; or the metal powder is aluminum, iron, lanthanum, magnesium, calcium, zirconium At least one metal compound powder of copper, titanium. It can improve the effect of discharge and reduce the combustion temperature during discharge.
  • the metal powder may also be a mixed powder in which the above metal powder is mixed with the above metal compound powder.
  • the metal mass percentage in the metal powder is 60% to 99%. In order to ensure the effect of discharge, reduce the risk of discharge.
  • the metal powder in the step a has a particle size of 60 mesh to 120 mesh. In order to ensure the effect of discharge, reduce the risk of discharge.
  • the metal powder obtained when the metal powder obtained is stored in a container, the metal powder is stored in a metal container that does not chemically react with the metal powder to ensure the quality of the metal powder.
  • the blanking device of the metal powder 5 in the step b includes a blanking pipe 1032 constituting a part of the blanking passage and is disposed in the lower feeding pipe 1032 for pushing the metal powder.
  • the metal powder 5 discharged from the unloading device 1 enters the feeding device 2 and is evenly distributed around the feeding screw 203 of the feeding device 2. Therefore, the spiral groove (the spiral feed projection structure and the spiral feed recess structure) that drives the surface of the feed screw 203 by the motor (reduction motor) is spirally rotated to transport the metal powder 5 to the continuously heated region.
  • the metal powder 5 around the feed screw 203 is continuously heated by the heating ring 301 which is provided by the feeding device 2 in the region where the heating is continued, and the metal powder in the ignited state is formed.
  • the metal powder is heated to a temperature above the ignition point by a heating ring, and then contacted with air to form a metal powder in an ignited state.
  • the heating coil 301 can be heated by alternating electric heating or by electromagnetic induction.
  • the heating coil 301 is sealed by the thermal insulation sleeve 302 to prevent heat from leaking out.
  • step d a flowing air flow is generated by the impeller 402, and the ignited metal powder is ejected along the ejecting channel formed by the outlet pipe 401 to form a fireworks discharge effect.
  • the intensity of the airflow is controlled to control the height of the fireworks.
  • the method is mainly a metal powder processed by a process such as powder forging (mainly at least one metal powder of aluminum, iron, barium, magnesium, calcium, zirconium, copper, titanium or a compound thereof), and the purity is about 60%. 99%, particle size of about 60 mesh to 120 mesh.
  • the prepared metal powder is stored in a cool, dry and sealed metal hopper that does not chemically react with the metal powder.
  • the bottom of the metal hopper is equipped with a lowering screw and a lowering tube.
  • the rotating screw drives the screw to rotate, and the metal powder in the metal hopper can be uniformly, smoothly and continuously discharged into the feeding device.
  • the metal powder to be discharged is uniformly distributed around the conveying rod by a feeding device, and the conveying rod adopts a special screw screw structure, and the conveying rod is driven by the reduction motor to convey the metal powder to the heating region.
  • the delivered metal powder is ignited after being heated by the heating coil in the heating zone.
  • the heating coil is heated by alternating current, and the heating coil is sealed by an insulating material to prevent heat from being transmitted to other areas.
  • the blowing of the metal powder The airflow generated by the turbine can blow the ignited metal powder along the outlet pipe, and the fireworks discharge effect. By controlling the rotational speed of the turbine, it is possible to control the intensity of the generated airflow, thereby controlling the height of the fireworks.
  • the method for ejecting cold fireworks of the present invention mainly uses a mechanical heating device to ignite the metal powder, uses a mechanical structure to transport the ignited metal powder, and uses a wind current source to blow the ignited metal powder into the air to realize the effect of the traditional fireworks. It can achieve long-term, continuous and stable fireworks eruption. It can control the height of the metal powder blown into the air, which can achieve the aesthetic effect similar to a musical fountain. It only uses metal powder, does not use ignition agent to ignite, is easy to transport and store, and has good safety and environmental protection advantages.
  • the metal powder preparation and storage steps are described as shown in Fig. 5.
  • the metal powder for forming the cold fireworks may be prepared. It is not limited to the respective steps of the description.

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  • General Engineering & Computer Science (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

提供了一种喷发冷焰火的方法，其包括以下步骤：准备用于形成冷焰火的金属粉末（5）；利用下料装置（1）将金属粉末（5）均匀连续地进行下料；对由所述下料装置（1）下料的金属粉末（5）利用送料装置（2）进行输送，在所述送料装置（2）输送过程中对所述金属粉末（5）进行持续加热；采用喷发装置（4）中流动气流带动在所述下料装置（1）的输送出口点燃的所述金属粉末（5）向外喷发形成冷焰火。由于不采用具有危险性的火药等，故消除了生产、运输以及燃放过程中存在的危险性。而且，在燃放时不会产生烟雾以及刺激性气味的气体，燃放过程绿色环保。另外，可以长时间进行喷发，焰火喷发时间可灵活操控，能够适用于各种舞台环境燃放以及家庭环境燃放。

Description

喷发冷焰火的方法 技术领域
本发明涉及冷焰火喷发技术领域，特别地，涉及一种喷发冷焰火的方法。
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均是一次性燃放，故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。
发明内容
有鉴于此，本发明的主要目的在于提供了一种不采用具有危险性的火药，并且，可延长喷发时间、焰火喷发时间可操控以及冷焰火筒可循环利用的喷发冷焰火的方法。
本发明提供一种喷发冷焰火的方法，其特征在于，包括以下步骤： a、准备用于形成冷焰火的金属粉末；b、利用下料装置将金属粉末均匀连续地进行下料；c、对由下料装置下料的金属粉末利用送料装置进行输送，并且，在送料装置输送过程中对金属粉末进行持续加热；d、采用喷发装置中流动气流带动在送料装置的输送出口点燃的金属粉末向外喷发形成冷焰火。
进一步地，在准备金属粉末的步骤a中，选择燃点低的金属进行粉末碾压或粉末锻造形成金属粉末。
进一步地，步骤a中的金属粉末采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属粉末；或者金属粉末采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属化合物粉末。
进一步地，金属粉末中金属质量含量百分比为60％-99％。
进一步地，步骤a中金属粉末的粒度为60目-120目。
进一步地，步骤b中金属粉末的下料装置包括构成下料通道一部分的下料管以及设于下料管内用于推送金属粉末的下料丝杆，通过电机驱动下料丝杆表面的螺旋槽进行螺旋旋转，以将准备的金属粉末连续的推送下料至送料装置。
进一步地，步骤c中，由下料装置下料的金属粉末进入送料装置内并均匀分布于送料装置的送料丝杆的周围，由电机驱动送料丝杆表面的螺旋槽进行螺旋旋转，以将金属粉末输送至持续加热的区域。
进一步地，在持续加热的区域利用送料装置外套设的加热圈对送料丝杆周围的金属粉末进行持续加热后形成点燃状态的金属粉末。
进一步地，加热圈采用交变电加热，或采用电磁感应加热；加热圈被保温套管密封以防止热量外泄。
进一步地，步骤d中，通过叶轮机产生流动气流，将点燃后的金属粉末沿着喷发装置的喷发通道喷出形成焰火燃放的效果；通过控制叶轮机的转速，控制气流的强度，进而控制焰火燃放的高度。
本发明具有以下有益效果：
本喷发冷焰火的方法，采用燃点低的金属元素制取金属粉末，以方便通过外部加热的方式进行点燃。通过均匀、连续的下料以及送料，从而保证金属粉末可以连续不断的进入以下工序，以保证冷焰火喷发的焰火均匀性、平稳性和连续性。在金属粉末均匀、连续的输送过程中对输送中的金属粉末进行加热，能够使得金属粉末均匀受热，并在持续加热后被激发点燃，点燃后的金属粉末通过喷发通道内的喷发气流向外喷发，从而形成冷焰火的喷发效果。通过控制下料和输送速度以及气流的流量大小，可以调节冷焰火高度，从而满足不同环境展示需要。整个冷焰火激发点燃过程，采用机械方式与电加热相结合，替代了传统工艺采用火药点燃的方式，消除了生产、运输以及燃放过程中存在的危险性。并且在燃放时不会产生烟雾以及刺激性气味的气体，燃放过程绿色环保。并且可以长时间进行喷发，焰火喷发时间可灵活操控，能够适用于各种舞台环境燃放以及家庭环境燃放。
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；
图2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3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；
图4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；
图5是本发明优选实施例的喷发冷焰火的方法的实施步骤框图。
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。如图1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(加热圈)3以及将由加热机构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(参照图2)。通过送料装置2(旋转送料辊203)连续旋转推送将从下料装置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。本发明的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。
图2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3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；图4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，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2所示，旋转下料机构103包括用于连通装料料斗101和下料漏斗102的下料管1032、沿下料管1032轴向布置于下料管1032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(下料丝杆)1031以及用于驱动下料辊轴1031旋转的下料驱动电机1033。下料辊轴1031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。通过下料驱动电机1033驱动下料辊轴1031在装料料斗101内的金属粉末5中旋转，利用下料辊轴1031表面的凸凹结构带动金属粉末5通过下料管1032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1031与下料管1032之间的间隙控制金属粉末5的下料量。可以通过下料辊轴1031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减速电机。通过改变减速电机的输出转速，控制下料辊轴1031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。
如图1-图3所示，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(送料丝杆)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和/或连续的螺旋状送料凹陷构造。可选地，送料装置2连有用于驱动旋转送料辊203旋转的送料驱动机构。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。
另外，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。
如图1、图4所示，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(叶轮机)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(点燃区域)、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内与气流(空气)接触而被点燃并会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。
另外，点燃部4012的径向尺寸可以设成小于喷发部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。
图5是本发明优选实施例的喷发冷焰火的方法的实施步骤框图。如图5所示，本实施例的喷发冷焰火的方法，包括以下步骤：a、准备用于形成冷焰火的金属粉末；b、利用下料装置将金属粉末均匀连续地进行下料(金属粉末下料)；c、对由所述下料装置下料的金属粉末利用送料装置进行输送(金属粉末输送)，并且，在送料装置输送过程中对金属粉末进行持续加热(金属粉末加热)；d、采用喷发装置中流动气流带动送料装置的输送出口点燃的金属粉末向外喷发形成冷焰火(喷发)。另外，如图5所示，在金属粉末下料步骤之前的准备金属粉末的步骤a中，可以选择燃点低的金属进行粉末碾压或粉末锻造形成金属粉末(金属粉末制取)，然后，将制得的金属粉末储存于阴凉、干燥和密封的容器内等待使用(金属粉末储存)。
根据本喷发冷焰火的方法，采用燃点低的金属元素制取金属粉末，以方便通过外部加热的方式达到燃点后，与空气接触就可进行点燃。制取后的金属粉末储存于阴凉、干燥和密封的容器中以方便连续燃放使用。通过均匀、连续的下料以及输送，从而保证金属粉末可以连续不断的进入以下工序，以保证冷焰火喷发的焰火均匀性、平稳性和连续性。在金属粉末均匀、连续的输送过程中对输送中的金属粉末进行加热，能够使得金属粉末均匀受热，并在持续加热后被激发点燃。点燃后的金属粉末通过喷发通道内的喷发气流向外喷发，从而形成冷焰火的喷发效果。通过控制下料和送料的速度以及气流的流量大小，可以调节冷焰火高度，从而满足不同环境展示需要。整个冷焰火激发点燃过程，采用机械方式与电加热相结合，替代了传统工艺采用火药点燃的方式，消除了生产、运输以及燃放过程中存在的危险性。并且在燃放时不会产生烟雾以及刺激性气味的气体，燃放过程绿色环保。并且可以长时间进行喷发，焰火喷发时间可灵活操控。这种喷发冷焰火的方法可适用于各种舞台环境燃放以及家庭环境燃放。
本实施例中，步骤a中的金属粉末采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属粉末；或者金属粉末采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属化合物粉末。能够提高燃放的效果，降低燃放时的燃烧温度。可选地，金属粉末也可以采用上述金属粉末与上述金属化合物粉末进行混合的混合粉末。
本实施例中，金属粉末中金属质量含量百分比为60％-99％。以保证燃放的效果，降低燃放危险。
本实施例中，步骤a中金属粉末的粒度为60目-120目。以保证燃放的效果，降低燃放危险。
本实施例中，在容器中对制得的金属粉末进行储存时，采用不与金属粉末发生化学反应的金属容器储存金属粉末，以保证金属粉末的质量。
本实施例中，如上所述，步骤b中金属粉末5的下料装置包括构成下料通道一部分的下料管1032以及设于下料管1032内用于推送金属粉 末的下料丝杆1031。从而，通过电机(减速电机)驱动下料丝杆1031表面的螺旋槽(螺旋状下料凸起构造、螺旋状下料凹陷构造)进行螺旋旋转，以将准备的金属粉末连续的推送下料至送料装置2，从而实现均匀、平稳、连续地下料。
本实施例中，如上所述，步骤c中，由下料装置1下料的金属粉末5进入送料装置2内并均匀分布于送料装置2的送料丝杆203的周围。从而，由电机(减速电机)驱动送料丝杆203表面的螺旋槽(螺旋状送料凸起构造、螺旋状送料凹陷构造)进行螺旋旋转，以将金属粉末5输送至持续加热的区域。
本实施例中，如上所述，在持续加热的区域利用送料装置2外套设的加热圈301对送料丝杆203周围的金属粉末5进行持续加热后形成点燃状态的金属粉末。这里，通过加热圈将金属粉末的温度加热到燃点以上后与空气接触而形成点燃状态的金属粉末。
本实施例中，加热圈301可采用交变电加热或采用电磁感应加热。加热圈301被保温套管302密封以防止热量外泄。
本实施例中，步骤d中，通过叶轮机402产生流动气流，将点燃后的金属粉末沿着出口管401形成的喷发通道喷出形成焰火燃放的效果。通过控制叶轮机的转速，控制气流的强度，进而控制焰火燃放的高度。
实施时，具体实施步骤：
1.金属粉末的制取。该方法主要是采用粉末锻造等工艺加工而成的金属粉末(主要是铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属粉末或其化合物)，纯度约60％～99％，粒度约60目～120目。
2.金属粉末的储存。制取的金属粉末储存在阴凉、干燥和密封的金属料斗中，该金属料斗不予金属粉末产生化学反应。
3.金属粉末的下料。金属料斗的底部安装有下料丝杆和下料管，通过减速电机带动螺旋丝杆旋转，可将金属料斗中的金属粉末均匀、平稳和连续的下料至送料装置中去。
4.金属粉末的输送。下料的金属粉末通过送料装置将金属粉末均匀的分布在输送杆周围，输送杆采用特别的螺旋丝杆结构，由减速电机驱动输送杆将金属粉末输送至加热区域。
5.金属粉末的加热。输送来的金属粉末，在加热区域由加热圈加热后点燃。加热圈是由交流电加热，加热圈被绝缘材料密封防止热量传至其他区域。
6.金属粉末的吹出。叶轮机产生的气流可将点燃后的金属粉末沿出口管吹出，焰火燃放的效果。通过控制叶轮机的转速，可控制其产生气流的强度，进而能够控制焰火燃放的高度。
工作原理及特点：
本发明喷发冷焰火的方法主要是采用机械式加热装置点燃金属粉末，采用机械结构运送点燃的金属粉末，采用风流源将点燃的金属粉末吹到空中，实现传统烟花的效果。能实现长时间、连续、稳定的焰火喷发效果。可控制金属粉末吹到空中的高度，可实现类似音乐喷泉的美观效果。仅采用金属粉末，不使用促燃剂点燃，便于运输、储存，具有很好的安全环保等优点。
另外，在本发明的上述实施例中，虽然如图5所示那样记载了金属粉末制取以及储存步骤，但是在需要进行喷发冷焰火时，只要准备好用于形成冷焰火的金属粉末即可，并不局限于该记载的各步骤。
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. 一种喷发冷焰火的方法，其特征在于，包括以下步骤：
    a、准备用于形成冷焰火的金属粉末；
    b、利用下料装置将所述金属粉末均匀连续地进行下料；
    c、对由所述下料装置下料的金属粉末利用送料装置进行输送，并且，在所述送料装置输送过程中对所述金属粉末进行持续加热；
    d、采用喷发装置中流动气流带动在所述送料装置的输送出口点燃的所述金属粉末向外喷发形成冷焰火。
  2. 根据权利要求1所述的喷发冷焰火的方法，其特征在于，
    在准备所述金属粉末的步骤a中，选择燃点低的金属进行粉末碾压或粉末锻造形成金属粉末。
  3. 根据权利要求1所述的喷发冷焰火的方法，其特征在于，
    所述步骤a中的所述金属粉末采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属粉末；或者所述金属粉末采用铝、铁、锶、镁、钙、锆、铜、钛中的至少一种金属化合物粉末。
  4. 根据权利要求3所述的喷发冷焰火的方法，其特征在于，
    所述金属粉末中金属质量含量百分比为60％-99％。
  5. 根据权利要求1所述的喷发冷焰火的方法，其特征在于，
    所述步骤a中所述金属粉末的粒度为60目-120目。
  6. 根据权利要求1所述的喷发冷焰火的方法，其特征在于，
    所述步骤b中金属粉末的下料装置包括构成下料通道一部分的下料管以及设于下料管内用于推送金属粉末的下料丝杆，
    通过电机驱动所述下料丝杆表面的螺旋槽进行螺旋旋转，以将准备 的金属粉末连续推送下料至所述送料装置。
  7. 根据权利要求6所述的喷发冷焰火的方法，其特征在于，
    所述步骤c中，由所述下料装置下料的金属粉末进入所述送料装置内并均匀分布于所述送料装置的送料丝杆的周围，
    由电机驱动所述送料丝杆表面的螺旋槽进行螺旋旋转，以将所述金属粉末输送至所述持续加热的区域。
  8. 根据权利要求7所述的喷发冷焰火的方法，其特征在于，
    在所述持续加热的区域利用所述送料装置外套设的加热圈对所述送料丝杆周围的金属粉末进行持续加热后形成点燃状态的金属粉末。
  9. 根据权利要求8所述的喷发冷焰火的方法，其特征在于，
    所述加热圈采用交变电加热，或采用电磁感应加热；
    所述加热圈被保温套管密封以防止热量外泄。
  10. 根据权利要求1所述的喷发冷焰火的方法，其特征在于，
    所述步骤d中，通过叶轮机产生流动气流，将点燃后的金属粉末沿着所述喷发装置的喷发通道喷出形成焰火燃放；
    通过控制叶轮机的转速，控制气流的强度，进而控制焰火燃放的高度。
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CN109211025A (zh) * 2018-09-06 2019-01-15 北京异景科技有限公司 一种无火药冷焰火喷发设备
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