Combustor device with asphalt fume treatment capacity

Abstract

This utility model relates to a burner device with asphalt flue gas treatment capability, belonging to the technical field of burners. It directly connects the asphalt flue gas collection pipe to the burner body, utilizing the burner's own high-temperature flame to fully combust and decompose the asphalt flue gas and fuel gas, thereby efficiently purifying harmful substances. This utility model requires no additional space, and the treated high-temperature flue gas can be recovered and used for aggregate drying, achieving a balance between energy saving, environmental protection, and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of burner technology, and in particular to a burner device with asphalt flue gas treatment capability. Background Technology

[0002] With increasingly stringent environmental protection requirements for asphalt mixing plants, the efficient purification and treatment of asphalt fumes has become crucial for the industry's development. Against this backdrop, end-of-pipe treatment technologies specifically designed for asphalt fumes have emerged. These technologies typically rely on the addition of independent environmental protection equipment to post-treat the collected fumes.

[0003] In related technologies, a common practice is to install an independent flue gas treatment system outside the production line of the asphalt mixing plant. The flue gas generated during the asphalt mixing process is collected and introduced into this external system for purification before being discharged.

[0004] However, the above-mentioned method of adding independent environmental protection equipment not only occupies a lot of space, but also has the problems of high equipment cost and high operating energy consumption, which greatly increases investment and operating costs. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a burner device with asphalt fume treatment capabilities, which can not only treat asphalt fume but also does not require additional land, thereby improving economic efficiency.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A burner device with asphalt fume treatment capability, comprising:

[0008] The burner body, blower, natural gas valve assembly, and asphalt fume collection pipeline;

[0009] The burner body includes a combustion chamber for forming a flame inside, and a natural gas nozzle is disposed on the combustion chamber;

[0010] The natural gas valve assembly is connected to a natural gas nozzle via a pipeline, and the injection end of the natural gas nozzle points towards the inside of the combustion chamber;

[0011] The outlet end of the asphalt fume collection pipe is connected to the air inlet of the blower, and the air outlet of the blower is connected to the combustion chamber, which is used to transport the collected asphalt fume into the combustion chamber to be combined with natural gas and subjected to high-temperature combustion.

[0012] An air supply channel is also provided on the asphalt fume collection pipe, and an air regulating valve is installed on the air supply channel.

[0013] It also includes a regulating valve opening and closing drive cylinder, the output end of which is connected to the air regulating valve for driving it to open or close.

[0014] As a further improvement to the above technical solution:

[0015] In one embodiment, a flame stabilizer is disposed within the combustion chamber;

[0016] Furthermore, the structure of the flame stabilizing disc is a rotary flame stabilizing disc, with inclined airflow grooves set on the outer periphery and an air hole opened at the center. The natural gas and asphalt flue gas introduced into the combustion chamber are mixed by the inclined airflow grooves on the outer periphery and the air hole at the center to form a spiral airflow, so as to achieve flame stabilization.

[0017] In one embodiment, a blower motor is disposed on one side of the blower, and the blower motor is used to drive the blower.

[0018] In one embodiment, an electrical control box is also provided on one side of the blower motor, and the blower motor and the regulating valve opening and closing drive cylinder are electrically connected to the electrical control box.

[0019] In one embodiment, the electrical control box is configured as follows:

[0020] When the oxygen content of the asphalt flue gas meets the combustion requirements, the air regulating valve is closed by driving the cylinder through the opening and closing of the regulating valve.

[0021] When combustion is oxygen-deficient, the air regulating valve is opened and supplemented by the cylinder driven by the regulating valve opening and closing.

[0022] In one embodiment, an adjustment limiter is added to the air regulating valve in the direction of opening height, and the adjustment limiter is used to limit the maximum opening degree of the air regulating valve.

[0023] In one embodiment, the flue gas, after being treated by high-temperature combustion in the combustion chamber, is guided to the aggregate drying process of the asphalt mixing plant.

[0024] The beneficial effects of this utility model are as follows:

[0025] This utility model has a compact structure, integrating the asphalt flue gas treatment function into the burner itself. It uses the principle of high-temperature combustion pyrolysis to treat the flue gas. The asphalt flue gas is directly introduced into the core high-temperature zone of the burner, mixed with natural gas, and then burned. During this process, harmful components in the flue gas (such as benzene compounds and polycyclic aromatic hydrocarbons) are decomposed into harmless carbon dioxide and water at high temperature, resulting in high treatment efficiency. In addition, the purified high-temperature flue gas is used to heat the aggregate in the drying drum, and energy is recovered and fed back into the production process, which can improve the overall thermal efficiency of the entire mixing plant system and enhance its economic efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 for Figure 1 Side view.

[0028] Figure 3 for Figure 1 Top view.

[0029] Figure 4 for Figure 2 Sectional view of AA (open state).

[0030] Figure 5 for Figure 2 A sectional view of AA (closed state).

[0031] The components include: 1. Natural gas nozzle; 2. Blower; 3. Natural gas valve assembly; 4. Blower motor; 5. Electrical control box; 6. Asphalt fume collection pipe; 7. Air regulating valve; 8. Adjustment limit component; 9. Regulating valve opening and closing drive cylinder; 10. Flame stabilizer plate; 11. Combustion chamber. Detailed Implementation

[0032] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0033] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0036] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0037] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0038] like Figures 1-5 The accompanying drawing shows a schematic diagram of the structure of a burner device with asphalt flue gas treatment capability according to an embodiment of the present invention; for ease of description, the drawing only shows the structure related to the embodiment of the present invention.

[0039] This application provides a burner device with asphalt fume treatment capability, which integrates the asphalt fume treatment function into the burner body to achieve a highly efficient and energy-saving purification process, including: burner body, blower 2, electrical control box 5, and asphalt fume collection pipe 6.

[0040] In some embodiments, the core component of the burner body is a combustion chamber 11, used to form a stable high-temperature flame; a natural gas nozzle 1 is disposed at the inlet end of the combustion chamber 11, and its injection direction points into the combustion chamber 11. A natural gas valve assembly 3 is connected to the natural gas nozzle 1 via a pipeline, used to control the on / off of natural gas, leak detection, and pressure regulation.

[0041] In some embodiments, the asphalt fume collection pipe 6 is used to collect the asphalt fumes generated during the production process of the asphalt mixing plant. Its outlet end is connected to the air inlet of the blower 2. The blower 2 is driven by the blower motor 4, and its outlet is connected to the combustion chamber 11. Thus, the blower 2 can pressurize the collected asphalt fumes and directly send them into the combustion chamber 11.

[0042] In some embodiments, an air supply channel is provided on the asphalt fume collection pipe 6, and an air regulating valve 7 is installed on the channel;

[0043] Furthermore, the output end of a regulating valve opening / closing drive cylinder 9 is connected to the air regulating valve 7 to drive it to open or close, thereby controlling the intake of supplementary air. To further precisely control the ventilation volume, an adjusting limiter 8 is provided in the opening height direction of the air regulating valve 7 to mechanically limit the maximum opening degree of the air regulating valve 7.

[0044] In some embodiments, a flame stabilizer 10 is provided inside the combustion chamber 11;

[0045] The flame stabilizer 10 is preferably a rotating structure with several inclined airflow grooves on its outer circumference and an air hole at its center. This unique structure enables the incoming natural gas and asphalt fumes to mix and form a strong spiral airflow, thereby greatly enhancing the mixing effect, stabilizing the flame shape, and ensuring that the asphalt fumes are fully retained and decomposed in the high-temperature zone.

[0046] In some embodiments, the electrical control box 5 is located on one side of the blower motor 4, and a control unit is integrated inside it. The blower motor 4 and the regulating valve opening and closing drive cylinder 9 are both electrically connected to the electrical control box 5 and are controlled by it.

[0047] The electrical control box 5 is programmed and configured as follows:

[0048] When the oxygen content of the asphalt flue gas itself meets the combustion requirements, the control valve opens and closes, driving the cylinder 9 to operate and closing the air regulating valve 7.

[0049] When the burner is deficient in oxygen due to the introduction of flue gas, the control valve opens and closes, driving the cylinder 9 to open the air regulating valve 7 to supplement combustion air, and the maximum opening is limited by the regulating limiter 8 to ensure that combustion is always in the best state.

[0050] Understandably, in practical applications, the presence or absence of oxygen can be determined by observing the flame.

[0051] The workflow of this utility model is as follows:

[0052] Asphalt fumes are drawn and pressurized by blower 2 through asphalt fumes collection pipe 6, and then enter combustion chamber 11 together with natural gas injected from natural gas nozzle 1 after being regulated by natural gas valve group 3.

[0053] When the airflow passes through the flame stabilizer 10, it is ignited after being mixed by rotation, forming a high-temperature flame in the combustion chamber 11;

[0054] Harmful organic compounds (such as benzene compounds and polycyclic aromatic hydrocarbons) in asphalt fumes are completely decomposed into harmless carbon dioxide and water vapor under this high-temperature environment;

[0055] The purified high-temperature flue gas is then directed to the drying drum of the asphalt mixing plant to heat the aggregates, thus realizing the recovery and utilization of energy.

[0056] In summary, this utility model has a reasonable structure, combining flue gas treatment and combustion processes into one. It not only eliminates the need for additional environmental protection equipment that occupies a large area, but also improves overall energy efficiency through energy recovery, resulting in significant economic and environmental benefits.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A burner device with asphalt flue gas treatment capability, characterized in that, include: The burner body, blower (2), natural gas valve group (3), and asphalt flue gas collection pipe (6); The burner body includes a combustion chamber (11) for forming a flame inside, and a natural gas nozzle (1) is disposed on the combustion chamber (11); The natural gas valve assembly (3) is connected to the natural gas nozzle (1) via a pipeline, and the injection end of the natural gas nozzle (1) points towards the inside of the combustion chamber (11); The outlet end of the asphalt fume collection pipe (6) is connected to the air inlet of the blower (2), and the air outlet of the blower (2) is connected to the combustion chamber (11) to transport the collected asphalt fume to the combustion chamber (11) to cooperate with natural gas and perform high-temperature combustion treatment. An air supply channel is also provided on the asphalt fume collection pipe (6), and an air regulating valve (7) is provided on the air supply channel; It also includes a regulating valve opening and closing drive cylinder (9), the output end of which is connected to the air regulating valve (7) for driving it to open or close.

2. The burner device with asphalt flue gas treatment capability according to claim 1, characterized in that, The combustion chamber (11) is equipped with a flame stabilizer (10).

3. The burner device with asphalt flue gas treatment capability according to claim 2, characterized in that, The structure of the flame stabilizer (10) is a rotary flame stabilizer. An inclined airflow groove is set on the outer periphery and an air hole is opened at the center. The natural gas and asphalt flue gas entering the combustion chamber (11) are mixed and a spiral airflow is formed by the combination of the inclined airflow groove on the outer periphery and the central air hole, so as to achieve flame stabilization.

4. The burner device with asphalt fume treatment capability according to claim 1, characterized in that, A blower motor (4) is provided on one side of the blower (2), and the blower motor (4) is used to drive the blower (2).

5. The burner device with asphalt flue gas treatment capability according to claim 4, characterized in that, An electrical control box (5) is also provided on one side of the blower motor (4), and the blower motor (4) and the regulating valve opening and closing drive cylinder (9) are electrically connected to the electrical control box (5).

6. The burner device with asphalt flue gas treatment capability according to claim 5, characterized in that, The electrical control box (5) is configured as follows: When the oxygen content of the asphalt flue gas meets the combustion requirements, the air regulating valve (7) is closed by driving the cylinder (9) through the opening and closing of the regulating valve. When combustion is oxygen-deficient, the air regulating valve (7) is opened and supplemented by the cylinder (9) driven by the regulating valve opening and closing.

7. The burner device with asphalt flue gas treatment capability according to claim 1, characterized in that, An adjustment limiter (8) is added to the air regulating valve (7) in the direction of opening height. The adjustment limiter (8) is used to limit the maximum opening degree of the air regulating valve (7).

8. The burner device with asphalt fume treatment capability according to any one of claims 1 to 7, characterized in that: The flue gas, after being treated by high-temperature combustion in the combustion chamber (11), is guided to the aggregate drying process of the asphalt mixing plant.

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