A large flame lance for a smelting furnace

Abstract

The utility model discloses a smelting furnace big fire gun, including the gun body that is provided with gas passage, combustion air passage and mixing chamber, and gas passage and combustion air passage all are linked with mixing chamber, and gas passage is linked with gas supply assembly, and combustion air passage is linked with combustion air supply assembly, and mixing chamber is close to the one end of export and is provided with the igniter component, and combustion air supply assembly includes air compressor and the air delivery pipeline that is connected with air compressor, and air delivery pipeline is connected with combustion air passage. The present application has realized the even mixing and accurate proportioning of gas and combustion air, improved the combustion efficiency, reduced the energy waste and harmful waste gas emission. At the same time, the setting of flame stabilizer has effectively stabilized the flame, reduced the risk of extinguishing, ensured the continuity and stability of smelting process. Moreover, the igniter component of accurate control has improved the ignition success rate and reliability, shortened the ignition time, improved the production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of smelting furnace equipment, and in particular to a large lance for a smelting furnace. Background Technology

[0002] Smelting furnaces are widely used in industrial production, such as metal smelting and glass manufacturing. As a key component of the smelting furnace, the performance of the lance directly affects the smelting efficiency and quality.

[0003] Traditional smelting furnace lance technology has many shortcomings. For example, some lances do not mix the combustion gases and combustion air evenly, resulting in incomplete combustion, which not only wastes energy but also produces a large amount of harmful exhaust gas, increasing the environmental burden. In some early smelting furnace lances, the combustion gases and combustion air were simply mixed at the front of the lance without a dedicated mixing structure, resulting in poor mixing, unstable flame, and a tendency for flameout.

[0004] Some large ignition guns have unreliable ignition systems, resulting in low ignition success rates and long ignition times, which affects production efficiency. For example, some large ignition guns using ordinary ignition devices are prone to malfunction when facing harsh working environments (such as high temperatures and high dust levels), making it difficult to start the smelting furnace.

[0005] Furthermore, existing large smelting torches have limited capabilities in adjusting flame size and temperature. When flame parameters need to be adjusted according to different smelting process requirements, precise control is difficult, affecting the stability of product quality. For example, when smelting different metals, the requirements for flame temperature and intensity vary greatly, but traditional large smelting torches cannot flexibly and accurately meet these needs.

[0006] Furthermore, the harsh working environment inside the smelting furnace, including high temperatures and corrosion, easily damages the musket, shortening its service life and increasing maintenance costs and downtime. Some muskets made of ordinary materials are prone to deformation and corrosion under prolonged high-temperature smelting conditions, reducing the musket's performance and reliability. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a large lance for a smelting furnace, so as to solve the problems of uneven mixing of gas and combustion air, unreliable ignition, poor flame adjustment ability and easy damage of the lance body in the existing technology, thereby improving smelting efficiency and quality and reducing energy consumption and maintenance costs.

[0008] To solve the above-mentioned technical problems, the solution of this utility model is as follows:

[0009] A smelting furnace lance includes a lance body with a gas passage, a combustion air passage, and a mixing chamber. The gas passage and the combustion air passage are both connected to the mixing chamber. The gas passage is connected to a gas supply component, and the combustion air passage is connected to a combustion air supply component. An ignition component is provided at one end of the mixing chamber near the outlet. The combustion air supply component includes an air compressor and an air delivery pipe connected to the air compressor. The air delivery pipe is connected to the combustion air passage.

[0010] The gas passage is equipped with a flow regulating valve for adjusting the gas flow rate.

[0011] The combustion air passage is equipped with an air flow sensor and a pressure sensor for monitoring the flow rate and pressure of the combustion air.

[0012] The air flow sensor and pressure sensor are connected to a control unit via data communication, and the control unit is connected to the air compressor via data communication.

[0013] A flame stabilizer is provided at the outlet of the mixing chamber to rotate the mixed gas and stabilize the flame.

[0014] The flame stabilizer consists of multiple blades evenly distributed along the circumferential direction of the mixing chamber outlet, and the blades are inclined.

[0015] The ignition assembly includes a spark plug and an ignition controller. The spark plug is disposed in the mixing chamber near the outlet, and the ignition controller is connected to the spark plug.

[0016] The gun body is provided with a cooling jacket, which has a coolant inlet and a coolant outlet, and the coolant inlet and coolant outlet are respectively connected to a coolant supply unit.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] This application achieves uniform mixing and precise proportioning of gas and combustion air through the design of gas passages, combustion air passages, and mixing chambers, as well as components such as flow regulating valves, air flow sensors, and pressure sensors. This improves combustion efficiency and reduces energy waste and harmful emissions. Simultaneously, the flame stabilizer effectively stabilizes the flame, reduces the risk of flameout, and ensures the continuity and stability of the smelting process. Furthermore, the precisely controlled ignition components improve ignition success rate and reliability, shorten ignition time, and increase production efficiency. Moreover, the cooling jacket and the high-temperature resistant, corrosion-resistant alloy gun body significantly extend the service life of the large firearm, reduce maintenance costs and downtime, and improve production efficiency. Attached Figure Description

[0019] Fig. 1This is a schematic diagram of the structure of this utility model;

[0020] Fig. 2 This is a schematic diagram of the structure of the gun body of this utility model;

[0021] Fig. 3 This is a cross-sectional structural diagram of the present invention. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figs. 1-3 As shown; a smelting furnace lance includes a lance body 1 with a gas passage 2, a combustion air passage 3, and a mixing chamber 4. Both the gas passage 2 and the combustion air passage 3 are connected to the mixing chamber 4. The gas passage 2 is connected to a gas supply component for supplying gas into the gas passage 2. The combustion air passage 3 is connected to a combustion air supply component for supplying combustion air into the combustion air passage 3. An ignition component 5 is provided near the outlet end of the mixing chamber 4 for igniting the mixed gas and combustion air in the mixing chamber 4. The combustion air supply component includes an air compressor and an air delivery pipe connected to the air compressor. The air delivery pipe is connected to the combustion air passage 3.

[0024] The gas passage 2 is equipped with a flow regulating valve 6 for adjusting the gas flow rate. This allows for flexible adjustment of the gas flow rate according to actual needs, thereby achieving preliminary control over the flame size and temperature.

[0025] The combustion air passage 3 is equipped with an air flow sensor 7 and a pressure sensor 8 for monitoring the flow rate and pressure of the combustion air.

[0026] Air flow sensor 7 and pressure sensor 8 are connected to a control unit via data communication, and the control unit is connected to the air compressor via data communication.

[0027] Air flow sensor 7 and pressure sensor 8 are used to monitor the flow rate and pressure of combustion air and feed them back to the control unit. The control unit controls the working status of the air compressor based on the feedback signal to ensure a stable supply of combustion air, so that the gas and combustion air can be mixed in a proper ratio to improve combustion efficiency.

[0028] A flame stabilizer 9 is provided at the outlet of the mixing chamber 4 to generate rotation of the mixed gas and stabilize the flame.

[0029] The flame stabilizer 9 consists of multiple blades evenly distributed along the circumference of the mixing chamber outlet, with the blades angled. When the mixed gas passes through, the blades cause the mixed gas to rotate, forming a stable recirculation zone, which helps stabilize the flame and prevents the flame from going out.

[0030] The ignition assembly 5 includes a spark plug and an ignition controller. The spark plug is located in the mixing chamber near the outlet, and the ignition controller is connected to the spark plug. This arrangement can precisely control the ignition timing and ignition energy of the spark plug, thereby improving the success rate and reliability of ignition.

[0031] The gun body 1 is provided with a cooling jacket 10, which has a coolant inlet 11 and a coolant outlet 12. The coolant inlet 11 and the coolant outlet 12 are respectively connected to the coolant supply unit. Through the circulation of coolant in the cooling jacket 10, the heat generated by the gun body 1 during operation is effectively removed, thereby cooling the gun body 1 and extending its service life.

[0032] During the operation of this application, the gas supply component is turned on, and the gas, after being filtered by the gas filter, enters the mixing chamber through the gas channel 2. At the same time, the combustion air supply component is started, and the air compressor pressurizes the combustion air into the combustion air channel 3 through the air delivery pipe. The air flow sensor 7 and the pressure sensor 8 monitor the flow rate and pressure of the combustion air in real time and feed the signals back to the control unit. The control unit adjusts the working state of the air compressor according to a preset ratio to ensure that the gas and combustion air are evenly mixed in the mixing chamber.

[0033] The ignition controller of ignition assembly 5 controls the spark plug to ignite at the appropriate time, igniting the mixed gas in the mixing chamber and generating a flame that is ejected from the outlet of the mixing chamber to heat the material in the melting furnace.

[0034] During operation, the flame stabilizer 9 causes the gas mixture to rotate, stabilizing the flame. The cooling jacket 10 cools the gun body 1 through the circulation of coolant, preventing it from overheating and being damaged.

[0035] Furthermore, according to the requirements of the smelting process, the flow rate of the gas can be adjusted by regulating the flow regulating valve in the gas channel 2, thereby adjusting the size and temperature of the flame.

[0036] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A large lance for a smelting furnace, characterized in that: The gun body (1) includes a gas passage (2), a combustion air passage (3) and a mixing chamber (4). The gas passage (2) and the combustion air passage (3) are both connected to the mixing chamber (4). The gas passage (2) is connected to a gas supply component, and the combustion air passage (3) is connected to a combustion air supply component. An ignition component (5) is provided at one end of the mixing chamber (4) near the outlet. The combustion air supply component includes an air compressor and an air delivery pipe connected to the air compressor. The air delivery pipe is connected to the combustion air passage (3).

2. The smelting furnace lance according to claim 1, characterized in that: The gas passage (2) is equipped with a flow regulating valve (6) for regulating the gas flow.

3. The smelting furnace lance according to claim 1, characterized in that: The combustion air passage (3) is equipped with an air flow sensor (7) and a pressure sensor (8) for monitoring the combustion air flow and pressure.

4. The smelting furnace lance according to claim 3, characterized in that: The air flow sensor (7) and pressure sensor (8) are connected to a control unit via data communication, and the control unit is connected to the air compressor via data communication.

5. The smelting furnace lance according to claim 1, characterized in that: A flame stabilizer (9) is provided at the outlet of the mixing chamber (4) to generate rotation of the mixed gas and stabilize the flame.

6. The smelting furnace lance according to claim 5, characterized in that: The flame stabilizer (9) consists of multiple blades evenly distributed along the circumferential direction of the mixing chamber outlet, and the blades are inclined.

7. The smelting furnace lance according to claim 1, characterized in that: The ignition assembly (5) includes a spark plug and an ignition controller. The spark plug is disposed in the mixing chamber near the outlet, and the ignition controller is connected to the spark plug.

8. The smelting furnace lance according to claim 1, characterized in that: The gun body (1) is provided with a cooling jacket (10) on the outside. The cooling jacket (10) is provided with a coolant inlet (11) and a coolant outlet (12). The coolant inlet (11) and the coolant outlet (12) are respectively connected to the coolant supply unit.

9. The smelting furnace lance according to claim 1 or 8, characterized in that: The gun body (1) is made of high temperature and corrosion resistant alloy material.

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