WO2017206525A1

WO2017206525A1 - Cold firework eruption apparatus and cold firework eruption method

Info

Publication number: WO2017206525A1
Application number: PCT/CN2017/071504
Authority: WO
Inventors: 周孝文; 陈江波; 余岭; 王同祥
Original assignee: 浏阳市孝文电子科技有限公司
Priority date: 2016-06-02
Filing date: 2017-01-18
Publication date: 2017-12-07
Also published as: CN105854317B; CN105854317A

Abstract

Disclosed is a cold firework eruption apparatus, comprising: a material discharge mechanism (1) used for storing metal powder (6) and discharging material in a rotary pushing manner; a feeding pipe (2) connected to an output end of the material discharge mechanism (1) and used for conveying the metal powder (6) and activating and igniting the metal powder (6) during the conveying process; an outlet pipe (3) connected to an output end of the feeding pipe (2) and used for making the ignited metal powder (6) erupt; and an air-feeding mechanism (4) used for supplying an airflow into the outlet pipe (3) so as to make the ignited metal powder (6) erupt to the outside. The air-feeding mechanism (4) is connected to an air-feeding branch pipeline (401) extending to the feeding pipe (2) and used for feeding air from an input end for the metal powder (6) of the feeding pipe (2) to an output end for the metal powder (6) of the feeding pipe (2) so as to drive the metal powder (6) in the feeding pipe (2) to flow towards the outlet pipe (3). The feeding pipe (2) is externally provided with an ignition and heating device (5) for activating and igniting the metal powder (6) in an inner cavity of the feeding pipe (2) by means of heating the outer surface of the feeding pipe (2) with a flame. The eruption speed of the metal powder (6), the combustion effect of the metal powder (6), etc. are controlled so as to achieve a better eruption effect.

Description

Cold fireworks eruption device and cold fireworks eruption method

Technical field

The invention relates to the field of cold flame fire eruption technology, in particular to a cold fire flame erupting device and a cold flame fire erupting method.

Background technique

Nowadays, most of the 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.

At present, the cold fireworks on the stage are mostly disposable products, and the mixture of gunpowder and metal powder is placed in the cold flame tube and placed in the ignition head device. When the cold flame fire is discharged, 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.

However, due to the presence of gunpowder, there is a certain risk in the production, transportation, storage 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. In addition, the cold flame tube generates a relatively strong smoke and a pungent odor when it is discharged, which easily pollutes the environment. Finally, this cold flame torch has many shortcomings such as short fireworks eruption time, uncontrollable fireworks eruption time, and non-recyclability of the cold flame.

There are also cold flame fire erupting devices that use mechanical means to ignite metal powder for continuous eruption. Although such devices solve many drawbacks of igniting metal powder with gunpowder, the ignition mechanism has the disadvantages of low loss, low life and low efficiency. The power consumption is large, the igniting temperature is low, the application range is narrow, and the temperature is uncontrollable, so that the expected stage effect is not achieved.

Summary of the invention

In view of this, the main object of the present invention is to provide a cold flame fire erupting device and a cold flame fire erupting method, which have the characteristics of low loss, high life, high efficiency, and low power consumption. Also, it can improve the visual effect on the stage.

The present invention provides a cold flame fire erupting apparatus comprising a blanking mechanism for blanking a metal powder, a feeding pipe connected to the output end of the blanking mechanism for transporting metal powder and exciting and igniting the metal powder during transport And an outlet pipe connected to the output end of the feeding pipe and used for ejecting the ignited metal powder, and a blowing mechanism for supplying airflow into the outlet pipe to eject the ignited metal powder outward, and the air blowing mechanism is further connected The wind branch road leads to the feed pipe and is configured to supply air from the metal powder input end of the feed pipe to the metal powder output end of the feed pipe to drive the metal powder in the feed pipe to flow to the outlet pipe.

Further, an ignition heating device for exciting and igniting the metal powder in the inner cavity of the feeding tube is provided outside the feeding tube for the flame to heat the outer surface of the feeding tube.

Further, the air supply branch includes an air outlet port connected to the air blowing mechanism and configured to output the gas sent out by the air blowing mechanism, connected to the air outlet port output end and used to open the gas passage to control the air flow rate or the closed gas passage. The gas switch is connected between the output end of the gas switch and the gas input end of the feed pipe and is used for conveying the airflow into the feed pipe to drive the metal powder in the inner cavity of the feed pipe to the intake pipe.

Further, the output end of the intake transfer pipe faces the conveying direction of the metal powder in the inner cavity of the feed pipe.

Further, the ignition heating device includes a storage tank for storing and supplying flammable fuel, a fuel connection switch provided at the output end of the storage tank and used to open the fuel passage to control the flammable fuel output flow or close the fuel passage, and is connected to the fuel Connecting a switch output and for delivering flammable fuel to the bottom of the heating zone of the feed pipe for igniting the fuel delivery pipe; the fuel delivery pipe has an output valve for controlling the flammable fuel output and igniting the flammable fuel. An output of the fuel valve is provided with an ignition head for ejecting a combustion flame to a heated region of the feed tube.

Further, the heating zone cover of the feeding pipe is provided with a heat insulating sleeve for isolating the heat of combustion and preventing the heat of combustion from leaking out.

Further, the combustible fuel uses a gaseous fuel or a liquid fuel.

Further, the outlet pipe is arranged vertically, and the air outlet of the air supply mechanism is fixed to the outlet pipe bottom of.

Further, the blanking mechanism includes a storage tank for storing metal powder, a lowering screw for feeding in a rotary pushing manner, and a blanking for driving the lowering screw to rotate and controlling the rotating speed of the lowering screw. Motor.

Further, the cold flame fire ejecting apparatus further includes a supporting mechanism, and at least one of the unloading mechanism, the feeding pipe, the outlet pipe, the air supply branch, and the ignition heating device is mounted and fixed on the support mechanism.

Further, the support mechanism includes a vertically disposed support riser and a laterally disposed support transverse plate.

In addition, the present invention also provides a cold flame fire erupting method comprising the steps of: cutting a metal powder by a feeding mechanism; conveying a metal powder by a feeding pipe connected to an output end of the cutting mechanism and exciting and igniting during the conveying process. Metal powder; supplying airflow into the outlet pipe connected to the output end of the feeding pipe by the air blowing mechanism to eject the ignited metal powder outward, and the air blowing branch is connected to the air blowing mechanism, and the air supply branch leads to The feeding pipe feeds air from the metal powder input end of the feeding pipe toward the metal powder output end of the feeding pipe to drive the metal powder in the feeding pipe to flow to the outlet pipe.

The invention has the following beneficial effects:

The cold flame fire erupting device and the cold flame fire erupting method of the invention, the metal powder is heated while the metal powder is transported through the feeding tube to excite and ignite the metal powder, and when the metal powder is transported into the outlet pipe, the air is ignited by the air blowing mechanism. The metal powder is ejected to achieve a visual effect on the stage. A branching air supply branch is opened on the air blowing mechanism, and the wind is supplied to the feeding pipe through the air supply branch, and the metal powder is driven to move along the axial direction of the feeding pipe by the flowing airflow, thereby achieving uniform feeding of the metal powder, due to the metal powder in the feeding pipe. When the air is moved, the gap between the powder particles is increased, and the contact area with the surrounding hot air can be increased, thereby being sufficiently excited and ignited.

Moreover, an ignition heating device is disposed outside the feeding pipe, and the metal powder under the airflow in the feeding pipe is excited and ignited by burning outside the wall of the feeding pipe. Such a In addition, the coordination relationship between the air supply branch and the ignition heating device can be used to control the metal powder ejecting speed, the burning effect of the metal powder, etc., and achieve a better eruption effect with a smaller heating consumption.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The invention will now be described in further detail with reference to the drawings.

DRAWINGS

The accompanying drawings, which are incorporated in the claims In the drawing:

1 is a schematic view showing the overall structure of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention;

2 is a schematic structural view of each component of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention;

Figure 3 is a partial structural schematic view of a blanking mechanism in accordance with a preferred embodiment of the present invention.

Description of the reference signs:

1. Cutting mechanism; 101, storage tank; 102, feeding screw; 103, feeding motor; 2. feeding tube; 3. outlet tube; 4. air supply mechanism; 401, air supply branch; Outlet port take-over; 4012, gas switch; 4013, intake transfer tube; 5, ignition heating device; 501, storage tank; 502, fuel connection switch; 503, fuel delivery pipe; 504, fuel valve; 505, ignition head; , metal powder; 7, insulation sleeve; 8, support mechanism; 801, support vertical plate; 802, support horizontal plate.

detailed description

The present invention will be further described in detail below with reference to the specific embodiments of the invention.

1 is a schematic view showing the overall structure of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention; FIG. 2 is a schematic structural view of each component of a cold flame fire erupting apparatus according to a preferred embodiment of the present invention; and FIG. 3 is a cutting mechanism of a preferred embodiment of the present invention; Schematic diagram of the local structure.

As shown in FIG. 1 and FIG. 2, the cold flame-fire erupting apparatus of the present embodiment includes a blanking mechanism 1 for storing metal powder 6 and discharging by rotary pushing, and an output end connected to the unloading mechanism 1 for conveying. The metal powder 6 and the feed pipe 2 for exciting and igniting the metal powder 6 during the conveyance process, the outlet pipe 3 connected to the output end of the feed pipe 2 and for ejecting the ignited metal powder 6 and for supplying the gas flow into the outlet pipe 3 In the air blowing mechanism 4 for ejecting the ignited metal powder 6 outward, the air blowing mechanism 4 is connected to the metal powder output end of the feeding pipe 2 to the feeding end of the feeding pipe 2 The air supply branch 401 for driving the metal powder 6 in the feed pipe 2 to the outlet pipe 3; the feed pipe 2 is provided with a metal powder for the inner surface of the feed pipe 2 for heating the outer surface of the feed pipe 2 6 An ignition heating device 5 for excitation and ignition.

The cold flame fire erupting device of the invention is cut into the feeding tube 2 by means of rotary pushing to facilitate precise control of the blanking; the metal powder 6 is heated by the feeding tube 2, and the metal powder 6 is heated to excite and ignite. The metal powder 6 ejects the ignited metal powder 6 by the air blowing mechanism 4 when the metal powder 6 is transported into the outlet pipe 3, thereby realizing a visual effect on the stage. A branching air supply branch 401 is opened in the air blowing mechanism 4, and air is blown into the feed pipe 2 through the air supply branch 401, and the metal powder 6 is moved in the axial direction of the feed pipe 2 by the flowing airflow, thereby realizing the metal powder 6. Uniform feeding; and an ignition heating device 5 is disposed outside the feeding tube 2, and the metal powder 6 under the air flow in the feeding tube 2 is excited and ignited by burning outside the wall of the feeding tube 2; The metal powder 6 moves under the action of the air flow, and the gap between the powder particles is increased, and the contact area with the surrounding hot air can be increased, thereby being sufficiently excited and ignited; the air supply branch 401 and the ignition heating device 5 can be utilized. Coordination and cooperation, control of the metal powder 6 eruption speed, the burning effect of the metal powder 6, etc., to achieve a better eruption effect with a smaller heating consumption. Optionally, the air outlet of the air blowing mechanism 4 that communicates with the outlet pipe 3 has a larger diameter than the air outlet that is connected to the feeding pipe 2 . The relationship between the diameter of the air outlet of the outlet pipe 3 and the air outlet of the feed pipe 2 is controlled to adjust the relationship between the feeding of the metal powder 6 and the eruption of the metal powder 6 after ignition, thereby better achieving the eruption effect of the stage.

As shown in FIG. 1 and FIG. 2, in this embodiment, the air supply branch 401 includes a connection air supply. An air outlet port 4011 for outputting the gas sent from the air blowing mechanism 4, and a gas switch 4012 connected to the output end of the air outlet port 4011 for opening the gas passage to control the air flow rate or the closed gas passage are connected to the gas switch. An intake transfer pipe 4013 is provided between the output end of the 4012 and the gas input end of the feed pipe 2 for conveying the gas flow into the feed pipe 2 to drive the metal powder 6 in the inner cavity of the feed pipe 2 to the outlet pipe 3.

As shown in FIG. 1 and FIG. 2, in the present embodiment, the output end of the intake manifold 4013 faces the conveying direction of the metal powder 6 in the inner cavity of the feeding tube 2, so that the airflow direction is consistent with the conveying direction of the metal powder 6. It is convenient to control the conveying speed and the conveying amount of the metal powder 6.

As shown in FIGS. 1 and 2, in the present embodiment, the ignition heating device 5 includes a storage tank 501 for storing and supplying a combustible fuel, an output terminal provided at the storage tank 501, and used to open a fuel passage to control the combustible fuel. A fuel connection switch 502 that outputs a flow rate or a fuel passage is closed, and a fuel delivery pipe 503 that is connected to the output end of the fuel connection switch 502 and that supplies flammable fuel to the bottom of the heating zone of the feed pipe 2 for igniting the combustion. An output of the fuel delivery tube 503 is provided with a fuel valve 504 for controlling the flammable fuel output and igniting the flammable fuel. An output of the fuel valve 504 is provided with an ignition head 505 for ejecting a combustion flame to a heating zone of the feed pipe 2. The outer wall surface of the feeding tube 2 is heated by igniting the flammable fuel to heat the air flow space in the feeding tube 2, and the metal powder 6 in the feeding tube 2 is excited and ignited to facilitate the metal powder moving along the airflow of the feeding tube 2. 6 temperature control. The fuel delivery control is realized by the fuel connection switch 502, and the open flame is controlled by the fuel valve 504, thereby precisely controlling the temperature inside the feed pipe 2. Optionally, the feed tube 2 is further provided with a temperature sensor.

As shown in Fig. 1 and Fig. 2, in the present embodiment, the heating zone cover of the feed pipe 2 is provided with a heat insulating jacket 7 for isolating the heat of combustion and preventing the heat of combustion from leaking out. Therefore, the temperature in the inner cavity of the feeding tube 2 can be ensured, heat loss can be reduced, and energy utilization can be improved.

In this embodiment, the combustible fuel is a gaseous fuel or a liquid fuel. According to actual needs, choose different fuel supplies to improve the scope of application, while helping to reduce costs.

As shown in FIG. 1 and FIG. 2, in the present embodiment, the outlet pipe 3 is arranged in a vertical direction to facilitate the display of the cold flame fire erupting effect. The air outlet of the air blowing mechanism 4 is fixed to the bottom of the outlet pipe 3. The outlet pipe 3 forms a vertical air guiding action, and the air blowing mechanism 4 winds out along the axial direction of the outlet pipe 3, Better spray cold fireworks, but also control the cold fireworks eruption by controlling the air supply.

In addition, the inner wall of the outlet pipe 3 is sprayed with a release material such as Teflon, which effectively avoids the problem of completely igniting the nodulation of the metal powder 6.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , in the present embodiment, the blanking mechanism 1 includes a storage tank 101 for storing the metal powder 6 , a cutting screw 102 for cutting in a rotary pushing manner, and The lowering motor 103 drives the lowering screw 102 to rotate and controls the rotational speed of the lowering screw 102. The material is fed into the feeding tube 2 by means of rotary pushing, which is convenient for precise control of cutting.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , in the embodiment, the cold flame fire erupting apparatus further comprises a supporting mechanism 8 , a feeding mechanism 1 , a feeding tube 2 , an outlet pipe 3 , a blowing branch 401 , and an ignition heating device 5 . At least one of the mountings is fixed to the support mechanism 8. Improve the integrity of the equipment, facilitate the disassembly and assembly of the structure, facilitate transportation, and also facilitate local maintenance.

As shown in FIGS. 1 and 2, in the present embodiment, the support mechanism 8 includes a vertically arranged support riser 801 and a laterally disposed support transverse plate 802, thereby facilitating structural mounting of the various components and improving overall stability.

Further, the cold flame fire erupting method according to the present invention comprises the steps of: a, blanking the metal powder 6 by the blanking mechanism 1; b, transporting the metal powder 6 by the feed pipe 2 connected to the output end of the blanking mechanism 1 and Exciting and igniting the metal powder 6 during the conveying process; c, supplying airflow into the outlet pipe 3 connected to the output end of the feeding pipe 2 by the air blowing mechanism 4 to eject the ignited metal powder 6 outward, and the air blowing mechanism 4 is further connected with a supply air branch 401, and the air supply branch 401 leads to the feed pipe 2 and blows air from the metal powder input end of the feed pipe 2 toward the metal powder output end of the feed pipe 2 to drive the feed pipe 2 The metal powder 6 flows toward the outlet pipe 3.

In practice, a novel cold flame fire ignition apparatus is provided which heats the heated area by means of a flammable gas heating to ignite the metal powder 6 in the area. The combustible gas heating device (ignition heating device 5) includes a gas tank (storage tank 501), a gas tank switch (fuel connection switch 502), a connection gas pipe (fuel delivery pipe 503), a combustible gas valve (fuel valve 504), and an ignition head 505. . After the ignition head 505 is energized, the combustible gas valve is opened, and the ignition head 505 The combustible gas ejected therefrom is ignited to heat the heated area. The new cold flame ignition device is mainly applied to the heating and ignition of the metal powder 6 in the fireworks equipment, including: the air blowing mechanism 4, the feeding mechanism 1, the feeding mechanism (feeding pipe 2), the flammable gas heating mechanism (ignition heating device 5), and the partition The heat jacket 7, the outlet pipe 3, the support mechanism 8, and the metal powder 6. The air blowing mechanism 4 is mainly used to generate a source of airflow, and the metal powder 6 fed by the airflow pushing and lowering mechanism 1 is ignited in the feeding pipe 2 and the ignited metal powder 6 is blown into the air to form a visual effect of the fireworks. The air blowing mechanism 4 controls the spark height of the cold fireworks by controlling the air flow rate thereof, and the device adopts the axial air blowing structure, which greatly reduces the size of the entire air blowing mechanism 4 while ensuring the air volume. The unloading mechanism 1 mainly feeds the stored metal powder 6 continuously into the feed pipe 2. The supporting mechanism 8 includes a supporting horizontal plate 802 and a supporting vertical plate 801 for connecting the air blowing mechanism 4, the feeding mechanism 1, the feeding mechanism (feeding pipe 2), the combustible gas heating mechanism (ignition heating device 5), and the heat insulating sleeve 7 And the outlet pipe 3. The feeding mechanism continuously conveys the metal powder 6 sent from the blanking mechanism 1 to the heated region, and sends the ignited metal powder 6 to the outlet pipe 3. The combustible gas heating device (ignition heating device 5) includes a gas tank, a gas cylinder switch, a connecting gas pipe, a combustible gas valve, and an ignition head 505. When the ignition head 505 is energized, the flammable gas flowing out from the ignition head 505 can be automatically ignited, thereby achieving The effect of ignition of the metal powder 6. The heat insulating sleeve 7 can well prevent the heat of combustion of the combustible gas from passing through the fixed feeding pipe and the outlet pipe 3 to other positions, so as not to affect the use. The outlet pipe 3, i.e., the fully ignited metal powder 6, ejects the passage of the cold fireworks device. After the metal powder 6 is completely ignited in the heating device, it is blown to the outlet pipe 3 by the air current and is carried out by the air flow of the air blowing mechanism 4 to form a fireworks.

The metal powder 6 in the blanking mechanism 1 is stored in the storage tank 101, and the lowering screw 102 is located in the discharge passage of the storage tank 101 to block the metal powder 6 to prevent the metal powder 6 from directly leaking into the feeding mechanism. When the unloading motor 103 drives the lowering screw 102, the carryable metal powder 6 is slowly slipped into the feeding mechanism due to the threaded structure on the lowering screw 102. By controlling the rotational speed of the blanking motor 103, the amount of the metal powder 6 entering the feeding mechanism can be controlled. The mechanism can accurately control the amount of metal powder 6 to be discharged, and has a fast reaction speed, a short feeding process, a simple structure, and is convenient and reliable.

After the metal powder 6 is sent to the feeding mechanism, the gas switch 4012 is opened, and the airflow in the air blowing mechanism 4 enters the feeding pipe 2 through the intake transfer pipe 4013 and the air outlet port 4011, and pushes the metal powder 6 to the combustible gas heating mechanism. Heated area. Ignition head 505 After energization, the combustible gas valve is opened and the combustible gas flowing through is heated to heat the heated area. The air flow in the air blowing mechanism 4 ensures the oxygen content in the heated area, so that the metal powder 6 in the area is sufficiently ignited.

The ignited metal powder 6 is blown into the air by the air flow generated by the air blowing mechanism 4 to form an effect of the fireworks eruption. The inner wall of the outlet pipe 3 is sprayed with a release material such as Teflon, which effectively avoids the problem of completely igniting the metal powder 6 to the end. The air blowing mechanism 4 can provide different degrees of wind flow to the outlet pipe 3, thereby controlling the eruption height of the metal powder 6 after ignition.

The heat shield 7 prevents heat from being heated to other areas and affects the service life.

The supporting mechanism 8 includes a supporting vertical plate 801 and a supporting horizontal plate 802 for supporting the air blowing mechanism 4, the feeding mechanism 1, the feeding mechanism, the combustible gas heating mechanism, the heat insulating sleeve 7 and the outlet pipe 3 and the like.

The novel spray cold flame fire erupting device and the cold flame fire erupting method provided by the invention ensure uniform and continuous feeding and conveying, thereby ensuring that the metal powder 6 can continuously enter the feeding tube 2 to ensure the uniformity of the fireworks during the cold flame fire erupting. Stationarity and continuity. The metal powder 6 being conveyed is heated during the uniform and continuous conveyance of the metal powder 6, so that the metal powder 6 can be uniformly heated and excited to be ignited in continuous heating. The ignited metal powder 6 is ejected outward by the rapid air flow provided by the air blowing mechanism 4, thereby forming an erupting effect of the cold fireworks. By adjusting the speed of the blanking and the flow rate of the airflow, the shape and height of the cold firework can be adjusted to meet the needs of different environments. The whole cold fireworks stimulate the ignition process, using the principle of flammable gas heating, instead of the traditional process using gunpowder ignition and mechanical direct ignition, eliminating the dangers in production, transportation and discharge, and improving efficiency and service life. And the gas does not generate smoke and irritating odor during the discharge, and the discharge process is green. The flammable gas heating mechanism can increase the temperature in the heated area, thereby increasing the type of metal powder 6 used in the cold fireworks device and enhancing the visual effect of the cold fireworks. Suitable for all kinds of stage environment discharge and home environment discharge.

The invention provides a novel spray cold flame fire erupting device and a cold flame fire erupting method, which ignites the metal powder 6 by using a flammable gas combustion principle, can be heated to a higher temperature, and ignites a plurality of metal powders 6 having a higher ignition point, thereby expanding the use range. . The invention designs the structure of the airflow pushing metal powder 6, which greatly simplifies the increase of the ignition rate of the metal powder 6. The structure of the device. It has the characteristics of low loss and high life. It has high efficiency and low power consumption. It has the characteristics of small size, small mass and convenient carrying. The main purpose is to ignite the metal powder 6 by combustible gas combustion, so that the metal powder 6 can be heated to a higher temperature; the mechanism of the air flow pushing the metal powder 6 is designed to increase the oxygen supply amount and make the structure simpler. The flammable gas is used to ignite the metal powder 6, which can be heated to a higher temperature and ignited a plurality of metal powders 6 having a high ignition point, thereby expanding the range of use. The use of a gas generated by the fan to push the metal powder 6 provides both a uniform driving force to the metal powder 6 and sufficient oxygen for the full combustion of the metal powder 6.

In the above specific embodiment of the present invention, although the ignitable fuel is used as the heating mode of the ignition heating device, the present invention is of course not limited thereto, and other heating methods such as electric heating, etc. may be employed. .

Further, in the above-described specific embodiment of the present invention, the manner in which the outlet pipe is vertically arranged is used, but the present invention is of course not limited thereto, and an arrangement such as a certain angle of inclination may be employed depending on circumstances.

The specific embodiments of the present invention have been described in detail, and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A cold flame fire erupting apparatus characterized by comprising a blanking mechanism (1) for cutting a metal powder (6), and an output end connected to the blanking mechanism (1) for transporting the metal a powder (6) and a feed tube (2) for exciting and igniting the metal powder (6) during transport, connected to an output end of the feed tube (2) and used for ejecting the ignited metal powder (6) An outlet pipe (3) and a blower mechanism (4) for supplying an air flow into the outlet pipe (3) to eject the ignited metal powder (6) outward.

The air blowing mechanism (4) is further connected with a air supply branch (401), and the air supply branch (401) leads to the feeding pipe (2) and is used for metal from the feeding pipe (2) The powder input end supplies air to the metal powder output end of the feed pipe (2) to drive the metal powder (6) in the feed pipe (2) to flow to the outlet pipe (3).
A cold flame fire erupting apparatus according to claim 1, wherein

The feeding tube (2) is provided with an ignition heating for exciting and igniting the metal powder (6) in the inner cavity of the feeding tube (2) in a manner for flame heating the outer surface of the feeding tube (2). Device (5).
A cold flame fire erupting apparatus according to claim 1, wherein

The air supply branch (401) includes an air outlet nozzle (4011) connected to the air blowing mechanism (4) for outputting the gas sent out by the air blowing mechanism (4), and is connected to the air outlet a gas switch (4012) that is connected to the output end of the (4011) and used to open the gas passage to control the flow of the gas or to close the gas passage, the output end of the gas switch (4012) and the gas input end of the feed tube (2) An intake manifold for transporting airflow into the feed pipe (2) to drive the metal powder (6) in the inner cavity of the feed pipe (2) to the outlet pipe (3) (4013).
The cold flame fire erupting apparatus according to claim 3, wherein

The output end of the intake transfer pipe (4013) faces the conveying direction of the metal powder (6) in the inner cavity of the feed pipe (2).
The cold flame fire erupting apparatus according to claim 2, wherein

The ignition heating device (5) includes a storage tank (501) for storing and providing a combustible fuel, an output provided at the storage tank (501) and used to open a fuel passage to control a flammable fuel output flow or to close a fuel passage a fuel connection switch (502) and a fuel delivery pipe (503) connected to the output end of the fuel connection switch (502) for delivering flammable fuel to the bottom of the heating zone of the feed pipe (2) for igniting combustion ;

An output of the fuel delivery pipe (503) is provided with a fuel valve (504) for controlling the output of the combustible fuel and igniting the combustible fuel.

An output of the fuel valve (504) is provided with an ignition head (505) for ejecting a combustion flame to a heated region of the feed tube (2).
A cold flame fire erupting apparatus according to claim 5, wherein

The heating zone cover of the feeding pipe (2) is provided with a heat insulating sleeve (7) for isolating the heat of combustion and preventing the heat of combustion from leaking out.
A cold flame fire erupting apparatus according to claim 5, wherein

The flammable fuel is a gaseous fuel or a liquid fuel.
A cold flame fire erupting apparatus according to any one of claims 1 to 7, wherein

The outlet pipe (3) is arranged vertically.

The air outlet of the air blowing mechanism (4) is fixed to the bottom of the outlet pipe (3).
A cold flame fire erupting apparatus according to any one of claims 1 to 7, wherein

The blanking mechanism (1) includes a storage tank (101) for storing the metal powder (6), a lowering screw (102) for cutting in a rotary pushing manner, and for driving the lower portion The feeding screw (102) rotates and controls the cutting speed motor (103) of the cutting screw (102).
A cold fireworks erupting apparatus according to any one of claims 1 to 7, wherein The sign is that

The cold fireworks device further includes a support mechanism (8),

At least one of the unloading mechanism (1), the feed pipe (2), the outlet pipe (3), the air supply branch (401), and the ignition heating device (5) is fixed to On the support mechanism (8).
A cold flame fire erupting apparatus according to claim 10, wherein

The support mechanism (8) includes a vertically disposed support riser (801) and a laterally disposed support transverse plate (802).
A cold fireworks erupting method, comprising the steps of:

a. using the blanking mechanism (1) to cut the metal powder (6);

b, the metal powder (6) is transported by a feed pipe (2) connected to the output end of the blanking mechanism (1) and excited and ignited during transport (6);

c. supplying airflow into the outlet pipe (3) connected to the output end of the feeding pipe (2) by the air blowing mechanism (4) to eject the ignited metal powder (6) outward,

Further, the air blowing mechanism (4) is further connected with a supply air branch (401), and the air supply branch (401) leads to the feeding tube (2) and from the feeding tube (2) The metal powder input end supplies air to the metal powder output end of the feed pipe (2) to drive the metal powder (6) in the feed pipe (2) to flow to the outlet pipe (3).