Burner for coke oven gas combustion

Abstract

The utility model provides a burner for coke oven gas combustion, which belongs to the technical field of gas combustion and comprises a combustion chamber, a smoke inlet, a primary air inlet, a secondary air inlet, a secondary combustion port, an oil receiving box, a flow guide structure, a water outlet and an ignition needle. One end of the combustion chamber is provided with a smoke inlet, a primary air inlet, a secondary air inlet and an ignition needle, the top of the other end of the combustion chamber is provided with a secondary combustion port, and the secondary combustion port is communicated with the secondary air inlet; the oil receiving box is embedded into the combustion chamber and located below the smoke inlet. The flow guide structure is arranged on the oil receiving box; the water outlet is formed below one side of the combustion chamber; the primary air inlet and the secondary air inlet feed oxygen into the primary air inlet and the secondary air inlet through induced draft fans respectively. Gas-liquid separation is achieved, tar is prevented from being deposited at key parts such as the inner wall of the device, the air inlet and the combustion port, and therefore the situation that the combustion efficiency is affected and the cleaning and maintenance difficulty is increased due to unsmooth gas circulation is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of gas combustion technology, specifically relating to a burner for coke oven gas combustion. Background Technology

[0002] With industrial development, coke oven gas emissions have become a significant factor in environmental pollution. This gas contains large amounts of unburned products and harmful substances, which, if directly released into the atmosphere, will cause serious environmental pollution. Patent application number 202121077376.4 proposes a burner for reducing the nitrogen oxide content in coke oven gas. It includes a main air channel, a gas channel, a central air channel, and an ignition electrode. The burner brick has flame holes, and the gas channel is fitted inside the main air channel; the central air channel is fitted inside the gas channel; and the ignition electrode is fitted inside the central air channel. This application features a simple structure, reduces pollutant emissions, and is safe and reliable.

[0003] However, the gas from a coke oven contains tar. Since tar is a viscous substance, it easily adheres to the inner walls and parts of the equipment, causing poor gas flow and affecting combustion efficiency. It also increases the difficulty of cleaning and maintenance. Utility Model Content

[0004] Based on the above-mentioned technical problems, the purpose of this utility model is to provide a burner for coke oven gas combustion. This device can achieve gas-liquid separation and avoid tar deposition in key parts such as the inner wall of the device, air inlet, and combustion port, thereby avoiding the situation where poor gas flow affects combustion efficiency and increases the difficulty of cleaning and maintenance.

[0005] The specific technical solution is as follows:

[0006] A burner for burning coke oven gas includes: a combustion chamber, a flue gas inlet, a primary air inlet, a secondary air inlet, a secondary combustion port, an oil receiving box, a flow guiding structure, a drain outlet, and an ignition needle; one end of the combustion chamber is provided with a flue gas inlet, a primary air inlet, a secondary air inlet, and an ignition needle, and the top of the other end of the combustion chamber is provided with a secondary combustion port, which is connected to the secondary air inlet; the oil receiving box is embedded in the combustion chamber and is located below the flue gas inlet; the flow guiding structure is provided on the oil receiving box; the drain outlet is located below one side of the combustion chamber; wherein, oxygen is respectively sent into the primary air inlet and the secondary air inlet by an induced draft fan.

[0007] In addition, the burner for coke oven gas combustion in the above-mentioned technical solution provided by this utility model may also have the following additional technical features:

[0008] In the above technical solution, the oil receiving box includes: a first connecting box and a second connecting box. The first connecting box and the second connecting box are an integral structure. Mounting grooves are provided on both sides between the first connecting box and the second connecting box, and the diameter of the first connecting box is smaller than the diameter of the second connecting box.

[0009] The above technical solution also includes: a flow guiding structure, which includes two vertical plates and a flow guiding plate. The two vertical plates are respectively connected to both ends of the flow guiding plate. A through groove is provided through the flow guiding plate, and the vertical plates are embedded in the mounting groove.

[0010] In the above technical solution, one side of the first connecting box is a slope, and the guide plate is in contact with the slope of the first connecting box.

[0011] In the above technical solution, the guide plate and the smoke inlet are positioned relative to each other.

[0012] In the above technical solution, an arc-shaped groove is provided at the drain outlet.

[0013] The present invention provides a burner for coke oven gas combustion, which has the following advantages compared with the prior art:

[0014] 1. The coke oven gas enters the combustion chamber through the flue gas inlet. At the same time, the primary air inlet provides the oxygen required for the initial combustion and ignites the mixture after the ignition needle is activated, achieving the technical effect of the initial combustion. The combusted gas continues to move forward to the secondary combustion port, where the secondary air inlet provides oxygen and mixes with the incompletely combusted gas, allowing it to burn completely again at the secondary combustion port. This ensures that the harmful components that were not completely decomposed in the initial combustion are completely burned, thereby reducing the pollutants in the final emission gas.

[0015] 2. When the gas enters the combustion chamber through the flue gas inlet, it carries water and tar. The design of the guide structure and oil collection box allows the gas to flow along the guide structure to the ignition needle, thus ensuring the stability and effectiveness of combustion. At the same time, the guide structure also allows water, tar, and a small amount of gas in the gas to pass through the guide structure, and the water and tar fall into the oil collection box to collect water and tar. This prevents tar from depositing in key parts such as the inner wall of the combustion chamber, air inlet, and combustion port, thereby avoiding the situation where poor gas flow leads to a decrease in combustion efficiency and increases the difficulty of cleaning and maintenance.

[0016] 3. The flame produced by the combustion of gas in the combustion chamber will burn off the tar in the oil collection box, thereby reducing the accumulation of residues. Attached Figure Description

[0017] Figure 1 This is a front view of a burner for coke oven gas combustion according to the present invention;

[0018] Figure 2This is a schematic diagram of the structure of a burner for coke oven gas combustion according to the present invention;

[0019] Figure 3 This is a schematic diagram of the flow guiding structure and oil receiving box of this utility model;

[0020] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0021] 10 Combustion chamber, 11 Smoke inlet, 12 Primary air inlet, 13 Secondary air inlet, 14 Secondary combustion port, 15 Drain outlet, 16 Ignition needle, 17 First connecting box, 18 Second connecting box, 19 Vertical plate, 20 Guide plate, 21 Through groove, 22 Arc-shaped groove. Detailed Implementation

[0022] The following are specific implementation cases and appendices. Figure 1-3 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0023] A burner for burning coke oven gas, such as Figure 1-3 As shown, it includes: a combustion chamber 10, a smoke inlet 11, a primary air inlet 12, a secondary air inlet 13, a secondary combustion port 14, an oil receiving box, a flow guiding structure, a drain port 15, and an ignition needle 16; one end of the combustion chamber 10 is provided with a smoke inlet 11, a primary air inlet 12, a secondary air inlet 13, and an ignition needle 16, and the top of the other end of the combustion chamber 10 is provided with a secondary combustion port 14, which is connected to the secondary air inlet 13; the oil receiving box is embedded in the combustion chamber 10 and is located below the smoke inlet 11; the flow guiding structure is provided on the oil receiving box; the drain port 15 is located below one side of the combustion chamber 10; wherein, oxygen is sent into the primary air inlet 12 and the secondary air inlet 13 respectively by an induced draft fan.

[0024] With the above structure, the coke oven gas produced enters the combustion chamber 10 through the flue gas inlet 11. At the same time, the primary air inlet 12 provides the oxygen required for the initial combustion and ignites the mixed gas after the ignition needle 16 is activated, achieving the technical effect of the initial combustion. The gas after combustion continues to move forward to the secondary combustion port 14. At this time, the secondary air inlet 13 provides oxygen and mixes it with the incompletely burned gas, so that it is fully burned again at the secondary combustion port 14. This ensures that the harmful components that were not completely decomposed in the initial combustion are completely burned, thereby reducing the pollutants in the final emission gas. When the gas enters the combustion chamber 10 through the flue gas inlet 11, it carries water and tar. The design of the guide structure and oil collection box ensures the gas flows along the guide structure to the ignition needle 16, thus guaranteeing the stability and effectiveness of combustion. Simultaneously, the guide structure allows water, tar, and small amounts of gas in the gas to pass through, with the water and tar falling into the oil collection box. This collects the water and tar, preventing tar from accumulating on the inner wall of the combustion chamber 10, the air inlet, the combustion port, and other critical areas. This avoids poor gas flow that could lead to decreased combustion efficiency and increased cleaning and maintenance difficulties. The flame generated after the gas burns in the combustion chamber 10 burns away the tar in the oil collection box, reducing residue accumulation.

[0025] Specifically, the primary and secondary air inlets introduce outside air into the combustion chamber 10 via centrifugal induced draft fans, serving as the oxygen source required for combustion. The gas produced by the coking oven contains moisture and other components. The gas is transported through pipelines to the burners in the combustion purification system for combustion treatment. When the gas containing water vapor reaches the flue gas inlet 11 through the pipeline, condensation occurs during the process, producing condensed water and tar that flow into the oil collection box. In the oil collection box, due to the different densities of water and tar (water is less dense than tar), they are immiscible. If there is too much water, it will be discharged through the drain outlet 15 into a larger purification tank. During combustion in the combustion chamber 10, the water on the surface of the oil collection box evaporates, and when the temperature inside the combustion chamber 10 rises to the ignition point of the tar, the tar is ignited and burns inside the combustion chamber 10.

[0026] The primary combustion mainly processes the gas directly from the coking oven, while the secondary combustion mainly processes the unburned materials that are fed into the secondary combustion port 14. At the secondary combustion port 14, the materials are mixed with the air introduced from the secondary air inlet 13 and burned, thereby ensuring that harmful emissions are minimized.

[0027] The gas exiting from the secondary combustion port 14 is cooled by the heat dissipation chamber and then passes through the rear spray dust suppression system. The residual dust in the gas is sprayed into the water tank through the water mist effect before the gas is discharged.

[0028] In embodiments of this utility model, such as Figure 1-3As shown, the oil receiving box includes: a first connecting box 17 and a second connecting box 18. The first connecting box 17 and the second connecting box 18 are integral structures. Mounting grooves are provided on both sides between the first connecting box 17 and the second connecting box 18, and the diameter of the first connecting box 17 is smaller than the diameter of the second connecting box 18.

[0029] The small diameter design of the first connecting box 17 allows for more precise reception of water and tar separated from the gas, while the large diameter design of the second connecting box 18 provides greater storage space for collecting water and tar.

[0030] In embodiments of this utility model, such as Figure 1-3 As shown, it also includes: a flow guiding structure, which includes two vertical plates 19 and a flow guiding plate 20. The two vertical plates 19 are respectively connected to the two ends of the flow guiding plate 20. A through groove 21 is provided on the flow guiding plate 20, and the vertical plates 19 are embedded in the mounting groove.

[0031] By installing the two vertical plates 19 in the two mounting slots respectively, the position of the flow guiding structure is determined. When the gas enters the combustion chamber 10, the gas flows along the two sides of the guide plate 20 and the vertical plates 19 on both sides, allowing the gas to pass through the ignition needle 16, thereby ensuring that the gas mixture can be successfully ignited and achieving the technical effect of initial combustion. The through groove 21 provided on the guide plate 20 allows water and oil to flow into the second connecting box 18 through the through groove 21.

[0032] In an embodiment of this utility model, one side of the first connecting box 17 is an inclined surface, and the guide plate 20 is attached to the inclined surface of the first connecting box 17.

[0033] The inclined surface of the first connecting box 17 is used in conjunction with the guide plate 20 to achieve the inclined design of the guide plate 20, which helps to guide the gas flow to the ignition needle 16.

[0034] In an embodiment of this utility model, the guide plate 20 is positioned opposite to the smoke inlet 11.

[0035] By positioning the guide plate 20 opposite to the smoke inlet 11, the guide plate 20 directly receives and guides the flow path of the gas, ensuring that the gas does not diffuse randomly, but moves along the channels formed by the sides of the guide plate 20 and the vertical plate 19. Through the guidance of the guide plate 20 and the vertical plate 19, the gas can be concentrated and flow to the area where the ignition needle 16 is located, thereby ensuring the combustion effect.

[0036] In an embodiment of this utility model, an arc-shaped groove 22 is provided at the drain outlet 15.

[0037] By providing an arc-shaped groove 22 at the drain outlet 15, the space of the drain outlet 15 is increased, thus preventing blockage when water is discharged.

[0038] Implementation process: The gas produced by the coke oven enters the combustion chamber 10 through the flue gas inlet 11. At the same time, the primary air inlet 12 provides the oxygen required for the initial combustion and ignites the mixed gas after the ignition needle 16 is activated, achieving the technical effect of the initial combustion. The gas after combustion continues to move forward to the secondary combustion port 14. At this time, the secondary air inlet 13 provides oxygen and mixes it with the incompletely burned gas, so that it is fully burned again at the secondary combustion port 14. This ensures that the harmful components that were not completely decomposed in the initial combustion are completely burned, thereby reducing the pollutants in the final emission gas. When the gas enters the combustion chamber 10 through the flue gas inlet 11, it carries water and tar. The design of the guide structure and oil collection box ensures the gas flows along the guide structure to the ignition needle 16, thus guaranteeing the stability and effectiveness of combustion. Simultaneously, the guide structure allows water, tar, and small amounts of gas in the gas to pass through, with the water and tar falling into the oil collection box. This collects the water and tar, preventing tar from accumulating on the inner wall of the combustion chamber 10, the air inlet, the combustion port, and other critical areas. This avoids poor gas flow that could lead to decreased combustion efficiency and increased cleaning and maintenance difficulties. The flame generated after the gas burns in the combustion chamber 10 burns away the tar in the oil collection box, reducing residue accumulation.

[0039] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0040] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A burner for burning coke oven gas, characterized in that, include: The combustion chamber comprises a smoke inlet, a primary air inlet, a secondary air inlet, a secondary combustion port, an oil collection box, a flow guiding structure, a drain outlet, and an ignition needle. One end of the combustion chamber is provided with the smoke inlet, primary air inlet, secondary air inlet, and ignition needle. The top of the other end of the combustion chamber is provided with a secondary combustion port, which is connected to the secondary air inlet. The oil collection box is embedded within the combustion chamber and is located below the smoke inlet. The flow guiding structure is disposed on the oil collection box. The drain outlet is located below one side of the combustion chamber. Oxygen is supplied to both the primary and secondary air inlets via an induced draft fan.

2. The burner for coke oven gas combustion according to claim 1, characterized in that, The oil receiving box includes a first connecting box and a second connecting box. The first connecting box and the second connecting box are integral structures. Mounting grooves are provided on both sides between the first connecting box and the second connecting box, and the diameter of the first connecting box is smaller than the diameter of the second connecting box.

3. A burner for coke oven gas combustion according to claim 2, characterized in that, Also includes: traffic diversion The structure includes two upright plates and a guide plate. The two upright plates are respectively connected to both ends of the guide plate. A through groove is provided through the guide plate, and the upright plates are embedded in the mounting groove.

4. A burner for coke oven gas combustion according to claim 3, characterized in that, One side of the first connecting box is a slope, and the guide plate is in contact with the slope of the first connecting box.

5. A burner for coke oven gas combustion according to claim 4, characterized in that, The guide plate is positioned opposite to the smoke inlet.

6. A burner for coke oven gas combustion according to claim 1, characterized in that, The drain outlet is provided with an arc-shaped groove.

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