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How to install and set off cold fireworks
Abstract: Cold fireworks are cold smokeless fireworks made of metal powder with low ignition point in a certain proportion, which are used in stage performances, conferences and exhibitions and other occasions. There are many kinds of cold fireworks, such as hand-held, fountain and colored smoke. Cold fireworks have a low ignition point and are relatively safe, but attention should be paid to circuit safety and fire prevention. Ventilation and moisture-proof should be paid attention to during installation and unloading, as well as during storage. It is best to use a special cold fireworks igniter to set off cold fireworks, and keep a safe distance to ignite after the products are connected. Let's take a look at the related knowledge of cold fireworks. What is cold fireworks?

Cold fireworks is a new type of high-tech fireworks product. Its manufacturing principle is made of metal powder with low ignition point and processed according to a certain proportion. Cold fireworks have a low ignition point, and the external temperature is 30℃-50℃, which is harmless to human body. Suitable for special effects design of dance beauty celebration. Since the product was put on the market, it has been favored by designers and the public for its advantages of low temperature, strong safety, high brightness, less smoke, environmental protection and no pollution, and can play a strong role in setting off the atmosphere at the scene. Widely used in stage performances, conferences and exhibitions, wedding etiquette and other occasions, can make activities safe, environmentally friendly and distinctive.

Cold pyrotechnic products have many functions. Usually, the characteristics of various products are applied to the art combination, and the ideal effect can be achieved. At the same time, it is also a branch of festive supplies.

What kinds of cold fireworks are there?

1, hand-held category: hand-held cold fireworks, hand-held stage fairy wand, hand-held electric fireworks, cake cold fireworks, hand-held cake cold fireworks, birthday cake cold fireworks.

2. Fountain: stage silver fountain, fountain cold fireworks, smokeless and tasteless silver fountain cold fireworks, wedding silver fountain cold fireworks, stage fast fountain cold fireworks, performance instant fountain cold fireworks, stage bouquet cold fireworks, celebration bouquet cold fireworks, wedding bouquet cold fireworks.

3. Waterfalls: stage waterfall cold fireworks, celebration waterfall cold fireworks, wedding waterfall fireworks.

4. Colored smoke: Japanese scene smoke, Japanese scene smoke, celebration smoke, outdoor celebration smoke, high-altitude smoke, electronic cigarette, performance fireworks smoke and stage smoke.

5. Wedding fireworks: holding wedding flowers, wedding fireworks, wedding colored paper fireworks, ribbon fireworks.

6. Steam wheel rotation category: stage steam wheel cold fireworks, dancing beautiful rotating windmill fireworks, performing hot wheels cold fireworks, stage triangular steam wheel cold fireworks, four-corner steam wheel pentagonal steam wheel, hexagonal steam wheel.

7. Subtitle category: subtitle cold fireworks, stage subtitle fireworks, heart-shaped subtitle cold light flowers, and text modeling fireworks.

8. High-altitude category: meteor rocket cold fireworks, orbital meteor cold fireworks, flute meteor cold fireworks, high-altitude silver dragon cold fireworks, stage wedding gem flowers, festive silver dragon cold fireworks, celebration bouquet cold fireworks, high-altitude silver tail cold fireworks, flying silver dragon cold fireworks.

Matters needing attention in installing cold fireworks

1, circuit safety

The power supply cannot be connected behind the short circuit protection device (such as air switch, etc.). ), because the electric ignition head relies on short-circuit spark as excitation energy. When setting off special smoke products, it is best to turn off the smoke alarm device first.

2. Power requirements

Products below 10 can use 12V DC power supply; 10 to 20 products, which can use 36V safe power supply; For more than 20 products (it is best not to connect more than 50 products with one power supply), 220V AC power supply must be used, and parallel connection is more reliable.

3, wire requirements

Use 1.5mm copper core cable for wiring within 50m (2.5mm copper core cable is required for electric ignition protocol), and use 2.5mm copper core cable around 100m. In addition, if there are many products, the wire diameter should be appropriately increased.

4, pay attention to fire prevention

High-quality products are smokeless and slag-free, but some manufacturers use inferior titanium powder in order to reduce costs, and the impurities in it are easy to form high-temperature slag. Falling on the carpet or burning the carpet may also cause a fire. Therefore, a certain amount of water should be poured on the carpet, and asbestos boards can be padded if conditions permit. Therefore, when buying products, we must identify brands and choose manufacturers with stable quality, excellent quality and good reputation.

Safety instructions for fireworks display

1. When discharging, keep away from inflammable and explosive materials, with the barrel mouth facing upward and vertically placed in the direction of arrow (except waterfalls). Don't aim the burner at people and animals, and the product should be fixed to prevent the barrel from falling down; After connecting the special wire, the discharge will be 4 meters away, and the audience will watch it from 6 meters away. In case of flameout, keep away from it for three minutes, and then push the product to the unmanned side with a wooden stick.

2. When the number of cold fireworks products is less than 3, the battery of 1.5V can be used to get electricity; When the number of products is more than three, you can use batteries to get electricity, or you can get electricity from the civil power supply (use 65438+220V transformer to get electricity from the civil power supply). It is recommended to buy an igniter.

3. Before discharging, don't connect the two poles of the power supply at the same time, and then connect them at the same time when discharging. When installing the switch, make sure that the switch is closed to avoid accidental combustion. Turn off the switch in time after igniting the product.

4. Prepare a long enough power cord (64-core flower cord is recommended) for a large number of cold fireworks. According to the placement distance, determine the connection point with the flower bud, peel off the rubber of the power cord at this point to expose the copper wire (2cm is enough), screw the two power cords of each flower bud together with the two copper wires stripped by the electric ignition head, wrap them with tape to avoid short circuit, and then discharge them with a battery or civil electricity (switches should be installed).

5. Turn off the smoke alarm when it is set off in a place where there is a smoke alarm. When setting off in a place with carpets or wooden floors, add a piece of 40cm*40cm flame retardant material at the bottom of the fireworks, or wet the carpet with water around the fireworks within a range of about 1 m to prevent washing the bottom or burning the carpet. It is recommended to use a safe fixed base.

6. Don't use flammable and explosive compressed air pressure spray (such as colored aerosol) when discharging, so as to avoid chemical reaction and explosion.

7. If the product is damaged or falls off from the soil, please do not use it. If such products are abnormal during discharge, please soak the unqualified products in water for half a day and then bury them deeply.

Is it safe to set off cold fireworks?

Cold fireworks are made of a certain proportion of metal powder, and the ignition point is generally between 30℃ and 50℃. Compared with traditional fireworks, cold fireworks have less smoke, lower flame temperature and lighter smell, and are the safest and most reliable fireworks series at present. Setting off cold fireworks indoors, as long as the operation is in place and the protective measures are taken, there is no need to worry about causing fire. Many minor problems that have happened before are caused by improper operation in wedding or use. For example, during the wedding, many people like to use color spray, which is made of a chemical material with a very low discharge point. Although the temperature of cold fireworks is very low, it may ignite colorful flowers. Therefore, when setting off cold fireworks, try to avoid contact with flammable items such as color spray.

The low ignition point of cold fireworks is relative. Compared with ordinary fireworks, cold fireworks are safe and reliable products, but fire prevention measures need to be strengthened during the discharge process!

Store cold fireworks

With the increasing use of cold fireworks, some fireworks trading companies, celebration companies and distributors need to store a certain amount of cold fireworks. As cold fireworks are a special handicraft, the following items should be strictly observed during storage:

1, cold fireworks storage should be ventilated, moisture-proof, lightning protection, no fire source, no power supply.

2. Measures should be taken to prevent rats and insects.

3, need to be equipped with fire extinguishers, fire water and other corresponding fire equipment.

4, should be equipped with the necessary emergency rescue equipment, equipment.

5, cold fireworks products can be stacked or stored on shelves, objects neatly stacked, spaced, stable, the height shall not exceed 2.5 meters, spacing shall not be less than 0.7 meters.

Instructions for use of cold pyrotechnic igniter

1, cold pyrotechnic igniter is divided into box type and box type. The box-type cold pyrotechnic igniter is powered by four dry batteries, and the receiving box is placed in the position of pyrotechnic products. At the same time, 2-3 ignition heads can be detonated in series, and 1-2 ignition heads can be connected in parallel. The box igniter is powered by 220V AC, with an input voltage of 220V and an output voltage of 1 10V. Cold pyrotechnic products are placed with 64-core copper wires, and each group can detonate up to 50 ignition heads. These two igniters work in a similar way.

2. Put 4 No.5 batteries into the battery box, turn on the switch, and the red and yellow indicator lights up; If one of the two indicators does not light up, it means that the cold pyrotechnic igniter is faulty and cannot be used.

3. Press the button corresponding to the remote control, the red indicator will go out, the yellow indicator will light up, and the remote control will accept normally.

4. Access the cold pyrotechnic products according to the products connected by the remote controller.

Note: When the line is not used after connection, be careful not to shake the receiving box strongly. Please use high-quality batteries, and the test current of each battery should reach 500 mA. The storage box is close to the cold fireworks, so pay attention to prevent the storage box from fouling.