Combined type waste gas and waste liquid burner spray gun

Abstract

The utility model discloses a combined type waste gas and waste liquid burner spray gun which comprises a spray gun barrel, a waste liquid pipe, an atomized air pipe, a waste gas pipe and a spray gun head. The waste liquid, the atomized air and the waste gas are jointly connected to the spray gun head through the waste liquid pipe, the atomized air pipe and the waste gas pipe, the waste liquid and the atomized air in the premixing chamber at the spray gun head are sprayed out from the outlet of the premixing chamber after being fully mixed for the first time, and then the waste liquid and the waste gas sprayed out from the waste gas spray head are secondarily mixed and fully combusted. The original spray gun spraying combustion mode that only a single raw material can be used as fuel is changed, combustible waste gas and waste liquid generated by a natural gas burner or a diesel burner can be combusted in a combined mode, the repeated utilization rate of the combustible waste gas and waste liquid is increased, and energy is saved.

Description

Technical Field

[0001] The utility model relates to a burner spray gun, more specifically, to a combined waste gas and waste liquid burner spray gun, belonging to the field of petrochemical industry. Background Art

[0002] Rotary kiln is widely used in petrochemical, natural gas chemical and organic chemical industries. It is a continuously running heating equipment with combustion. It is mainly used to achieve harmlessness, reduction and resource utilization of garbage. Incineration is a relatively reliable and effective means. As a specific field of incineration of hazardous waste, rotary kiln has wide adaptability to complex industrial waste and medical waste. Therefore, it is widely used in the international hazardous waste incineration field. The rotary kiln burner spray gun is the key equipment to provide heat for the rotary kiln. It is required to have the characteristics of stable operation, high combustion efficiency and wide application of fuel.

[0003] At present, natural gas burners or diesel burners are commonly used. However, as a petrochemical industry, waste gas such as VOCS waste gas and waste liquid such as light oil, heavy oil, lipids, benzene and other waste liquids are generated every day. The utilization rate of these waste gases and waste gases is low, resulting in a large loss of resources. Traditional burner spray guns generally only use a single raw material as fuel, which leads to poor fuel function of the combustion spray gun. The combustible waste gas and waste liquid generated by natural gas burners or diesel burners cannot be reused, resulting in a huge waste of energy. Therefore, a device that can be used for the co-combustion of multiple combustible waste gases and waste liquids is needed to solve the above problems. Utility Model Content

[0004] In order to solve the above-mentioned problems of the prior art, the utility model provides a combined waste gas and waste liquid burner spray gun which has the technical characteristics of being able to perform combined combustion, improving the reuse rate of combustible waste gas and waste liquid, saving energy, and the like.

[0005] In order to achieve the above purpose, the utility model is implemented by the following technical solutions:

[0006] A combined waste gas and waste liquid burner spray gun, comprising a spray gun barrel, a waste liquid pipe, an atomizing air pipe, an exhaust pipe and a truncated cone-shaped spray gun head, wherein the combustion medium output end of the spray gun barrel is connected to the spray gun head, the right end of the exhaust pipe extends into the spray gun barrel and is connected to the spray gun head, at least four exhaust nozzles are evenly distributed around the conical surface of the spray gun head, the gap between the exhaust pipe and the spray gun barrel forms an annular sandwich cavity, the right end of the annular sandwich cavity is the exhaust pipe outlet, the exhaust pipe outlet is connected to the exhaust nozzle, and the exhaust pipe inlet on the annular sandwich cavity Connected to the exhaust gas source; the atomizing air pipe extends into the exhaust gas pipe, the waste liquid pipe extends into the atomizing air pipe, the gap between the waste liquid pipe and the atomizing air pipe forms an annular cavity, the right end of the annular cavity is the atomizing air outlet, the atomizing air outlet is connected to the inlet of the premixing chamber, and the atomizing air inlet on the atomizing air pipe is connected to the air source; a premixing chamber is provided in the spray gun head, the output end on the spray gun head is connected to the premixing chamber, the waste liquid pipe outlet at the right end of the waste liquid pipe passes through the premixing chamber and is located in the output end, and the waste liquid pipe inlet of the waste liquid pipe is connected to the waste liquid source.

[0007] Preferably, the spray gun barrel, waste liquid pipe, atomizing air pipe and exhaust gas pipe are all cylindrical, and the waste liquid pipe, atomizing air pipe, exhaust gas pipe and spray gun barrel are coaxial, and are nested from the inside to the outside to form a three-layer transmission pipeline for axial transmission.

[0008] Preferably, an atomizing air cyclone is provided in the premixing chamber, the atomizing air cyclone is cylindrical, an atomizing hole is provided on the atomizing air cyclone to connect the inner and outer cylinder circumferences of the atomizing air cyclone, the atomizing hole of the atomizing air cyclone is an inclined hole, and the atomizing hole of the atomizing air cyclone is inclined along the direction from the outer cylinder toward the inner cylinder and at the same time toward the axis and the outlet direction of the premixing chamber.

[0009] Preferably, the atomizing air cyclone is arranged on the air passage between the atomizing air outlet and the waste liquid pipe outlet.

[0010] Preferably, an angle is provided between the injection direction of the exhaust gas nozzle and the axis of the premixing chamber outlet, and the extension line of the exhaust gas nozzle can intersect with the axis center line of the premixing chamber.

[0011] Preferably, the spraying direction of the exhaust gas nozzle is along the tangent direction of the conical surface of the spray gun head and is consistent with the rotation direction of the ejected air flow of the atomizing air cyclone.

[0012] Preferably, a first flange is provided at the tail end of the exhaust pipe, and a second flange is provided on the outer circumference of the atomizing air pipe. The first flange and the second flange are coaxial with the atomizing air pipe, and the first flange can be detachably connected to the second flange.

[0013] Preferably, a third flange coaxial with the exhaust pipe inlet is provided at the exhaust pipe inlet for connection with a flange on an external pipeline.

[0014] Beneficial effect: By connecting waste liquid, atomizing air and waste gas to the spray gun head through the waste liquid pipe, atomizing air pipe and waste gas pipe, the waste liquid and atomizing air in the premixing chamber at the spray gun head are fully mixed once and then sprayed out from the outlet of the premixing chamber, and then mixed with the waste gas sprayed from the waste gas nozzle for a second time and fully burned, which changes the previous spray gun injection combustion method that can only use a single raw material as fuel, so that the combustible waste gas and waste liquid generated by the natural gas burner or diesel burner can be combined for combustion, thereby improving the reuse rate of the combustible waste gas and waste liquid and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front sectional view;

[0016] Figure 2 yes Figure 1 A partial enlarged view of the A direction;

[0017] Figure 3 It is one of the partial structural diagrams;

[0018] Figure 4 This is the second schematic diagram of the partial structure;

[0019] Figure 5 It is one of the structural schematic diagrams of the atomizing air cyclone.

[0020] Figure 6 This is the second structural diagram of the atomizing air cyclone.

[0021] In the figure: 1, spray gun barrel; 2, waste liquid pipe; 3, atomizing air pipe; 4, exhaust gas pipe; 5, spray gun head; 6, exhaust gas nozzle; 7, premixing chamber; 8, waste liquid pipe outlet; 9, waste liquid pipe inlet; 10, atomizing air outlet; 11, atomizing air inlet; 12, exhaust gas pipe outlet; 13, exhaust gas pipe inlet; 14, atomizing air cyclone; 15, annular sandwich cavity; 16, first flange; 17, second flange; 18, third flange. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings in the specification sheets 1-6, but the present invention is not limited to the following embodiments.

[0023] like Figure 1-6The figure shows a specific embodiment of a combined waste gas and waste liquid burner spray gun, which is a combined waste gas and waste liquid burner spray gun, comprising a long cylindrical spray gun barrel 1, a waste liquid pipe 2, an atomizing air pipe 3, an exhaust pipe 4 and a truncated cone-shaped spray gun head 5. The combustion medium output end of the spray gun barrel 1 is connected with the spray gun head 5, the right end of the exhaust pipe 4 extends into the spray gun barrel 1 and is connected with the spray gun head 5, and at least four exhaust nozzles 6 are evenly distributed around the conical surface of the spray gun head 5. The gap between the exhaust pipe 4 and the spray gun barrel 1 forms an annular sandwich cavity 15, and the right end of the annular sandwich cavity 15 is an exhaust pipe outlet 12, and the exhaust pipe outlet 12 is connected with the exhaust nozzle 6. The exhaust pipe inlet 13 on the annular sandwich cavity 15 Connected to the exhaust gas source; the atomizing air pipe 3 extends into the exhaust gas pipe 4, the waste liquid pipe 2 extends into the atomizing air pipe 3, the gap between the waste liquid pipe 2 and the atomizing air pipe 3 forms an annular cavity, the right end of the annular cavity is the atomizing air outlet 10, the atomizing air outlet 10 is connected to the inlet of the premixing chamber 7, and the atomizing air inlet 11 on the atomizing air pipe 3 is connected to the air source; a premixing chamber 7 is provided in the spray gun head 5 (the premixing chamber 7 is two circular holes with the same aperture formed by axial inward concave, and the circular holes are connected and form a step shape), the output end on the spray gun head 5 is connected to the premixing chamber 7, the waste liquid pipe outlet 8 at the right end of the waste liquid pipe 2 passes through the premixing chamber 7 and is located in the output end, and the waste liquid pipe inlet 9 of the waste liquid pipe 2 is connected to the waste liquid source.

[0024] The combustible waste liquid, atomizing air and combustible waste gas are respectively transported to the spray gun head 5 from the waste liquid pipe 2, the atomizing air inlet 11 and the annular interlayer cavity 15. The combustible waste liquid and the atomizing air are first fully mixed in the premixing chamber 7 and then sprayed out from the outlet of the premixing chamber 7. They are mixed with the combustible waste gas sprayed from the waste gas nozzle 6 of the spray gun head 5 for a second time outside the spray gun head 5 and then fully burned. Therefore, the spray gun injection combustion method that can only use a single raw material as fuel can be changed, so that the combustible waste gas and waste liquid generated by the natural gas burner or the diesel burner can be combined for combustion, thereby improving the reuse rate of the combustible waste gas and waste liquid and saving energy.

[0025] In a preferred embodiment, the spray gun barrel 1, waste liquid pipe 2, atomizing air pipe 3, and exhaust pipe 4 are all cylindrical, and the waste liquid pipe 2, atomizing air pipe 3, exhaust pipe 4, and spray gun barrel 1 are coaxial, and are nested from inside to outside to form a three-layer transmission pipeline for axial transmission. The concentric cylindrical sleeve combination makes the waste liquid pipe 2, atomizing air pipe 3, and exhaust pipe 4 fully utilize the cylindrical space of the spray gun barrel 1, and makes production, installation, and use more convenient and reliable.

[0026] In a preferred embodiment, an atomizing air cyclone 14 is provided in the premixing chamber 7, and the atomizing air cyclone 14 is rotatably arranged in the circular hole on the left side (the premixing chamber 7 includes two circular holes with different apertures), and the atomizing air cyclone 14 is cylindrical, and an atomizing hole is provided on the atomizing air cyclone 14 to connect the inner and outer cylinder circumferences of the atomizing air cyclone 14, and the atomizing hole of the atomizing air cyclone 14 is an inclined hole, and the atomizing hole of the atomizing air cyclone 14 is inclined from the outer cylinder toward the inner cylinder and the axis and the outlet direction of the premixing chamber 7. The atomizing air output from the atomizing air outlet 10 enters from the outer circumference of the atomizing hole of the atomizing air cyclone 14, and is discharged from the atomizing hole of the atomizing air cyclone 14, and at the same time moves toward the axis and the outlet direction of the premixing chamber 7 to form a turbine swirl, and the atomizing air cyclone 14 can accelerate the air flow rate and generate a swirl, so that the air and the waste liquid are mixed more evenly, and thus the combustion is more complete.

[0027] In a preferred embodiment, the atomizing air cyclone 14 is disposed on the air passage between the atomizing air outlet 10 and the waste liquid pipe outlet 8 .

[0028] In a preferred embodiment, an angle is set between the injection direction of the exhaust nozzle 6 and the axis of the outlet of the premixing chamber 7, and the extension line of the exhaust nozzle 6 can intersect with the axis of the premixing chamber 7. The swirling waste liquid and atomizing air mixed jet flow and the exhaust gas jet flow are fully mixed and burned after secondary mixing outside the spray gun head 5, and the mixing is more uniform and the combustion is more complete.

[0029] In a preferred embodiment, the spray direction of the exhaust gas nozzle 6 is along the tangent direction of the conical surface of the spray gun head 5, and is consistent with the rotation direction of the ejected airflow of the atomizing air cyclone 14. The exhaust gas nozzle 6 rotating clockwise or counterclockwise is consistent with the rotation direction of the atomizing air, which can make the exhaust gas rotate and spray at a diffusion angle to better mix with the combustion-supporting agent, the waste liquid and the atomizing air mixed jet flow, and burn more fully.

[0030] In a preferred embodiment, the tail of the exhaust pipe 4 is provided with a first flange 16, and the outer circumference of the atomizing air pipe 3 is provided with a second flange 17. The first flange 16 and the second flange 17 are coaxial with the atomizing air pipe 3, and the first flange 16 can be detachably connected to the second flange 17. The waste liquid, atomizing air, and exhaust gas are respectively transported from the back to the front to the spray gun head 5 in a three-layer manner from the inside to the outside along the radial direction for spraying and burning; the first flange 16 and the second flange 17 play the role of fixing the atomizing air pipe 3 and the exhaust pipe 4, so that the waste liquid pipe 2, the atomizing air pipe 3, and the exhaust pipe 4 are simple and convenient to install and disassemble, and are firm and reliable when combined for spraying and burning. The exhaust pipe inlet 13 is provided with a third flange 18 coaxial with the exhaust pipe inlet 13; the third flange 18 is used to connect the pipe port of the exhaust gas source, and the flange provides better connection tightness and airtightness, so that the connection between the exhaust pipe 4 and the exhaust gas source is more tight and reliable.

[0031] The on-site assembly is simple and convenient. The spray gun head 5 is fixedly connected to the inner cylindrical head of the exhaust pipe 4. The atomizing air pipe 3 extends from the inner cylindrical tail of the exhaust pipe 4 and is connected to the spray gun head 5. Then, the first flange 16 and the second flange 17 are connected by bolts and nuts. The inlets of the waste liquid pipe 2, the atomizing air pipe 3, and the exhaust pipe 4 are respectively connected to the waste liquid source, the atomizing air source, and the exhaust gas source to complete the preparation work.

[0032] During combined combustion, the atomizing air is transported to the premixing chamber 7 via the atomizing air pipe 3, and is accelerated and swirled by the atomizing air swirler 14. Since the waste liquid pipe outlet 8 of the waste liquid pipe 2 is axially contracted in the cavity of the premixing chamber 7, the atomizing air accelerated by the swirling flow and the combustible waste liquid are fully mixed once in the step-hole-shaped premixing chamber 7 and then ejected from the spray gun head 5 from the outlet of the premixing chamber 7. The combustible waste gas ejected from the waste gas nozzle 6 of the spray gun head 5 is fully mixed with the combustible waste gas ejected from the outside of the spray gun head 5 for a second time and then fully burned. Therefore, this embodiment can use a spray combustion method of mixed combustion of multiple fuels, so that the combustible waste gas and waste liquid generated by the natural gas burner or the diesel burner can be combined for combustion, thereby improving the reuse rate of the combustible waste gas and waste liquid and saving energy.

[0033] To sum up, the utility model connects waste liquid, atomizing air and waste gas to the spray gun head via the waste liquid pipe, atomizing air pipe and waste gas pipe. The waste liquid and atomizing air are fully mixed once in the premixing chamber at the spray gun head and then sprayed out from the outlet of the premixing chamber. The waste liquid is then mixed with the waste gas sprayed from the waste gas nozzle for a second time and then fully burned. This changes the previous spray gun combustion method that could only use a single raw material as fuel, so that the combustible waste gas and waste liquid generated by the natural gas burner or the diesel burner can be combined for combustion, thereby improving the reuse rate of the combustible waste gas and waste liquid and saving energy. Therefore, the utility model has broad application prospects.

[0034] Finally, it should be noted that the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered as the protection scope of the present invention.

Claims

1. A combined waste gas and waste liquid burner spray gun, characterized in that: The invention comprises a spray gun barrel (1), a waste liquid pipe (2), an atomizing air pipe (3), an exhaust gas pipe (4) and a truncated cone-shaped spray gun head (5), wherein the combustion medium output end of the spray gun barrel (1) is connected to the spray gun head (5), the right end of the exhaust gas pipe (4) extends into the spray gun barrel (1) and is connected to the spray gun head (5), at least four exhaust gas nozzles (6) are evenly distributed around the conical surface of the spray gun head (5), the gap between the exhaust gas pipe (4) and the spray gun barrel (1) forms an annular sandwich cavity (15), the right end of the annular sandwich cavity (15) is an exhaust gas pipe outlet (12), the exhaust gas pipe outlet (12) is connected to the exhaust gas nozzle (6), and the exhaust gas pipe inlet (13) on the annular sandwich cavity (15) is connected to an exhaust gas source; the atomizing air pipe (3) extends into the exhaust gas pipe (4), The waste liquid pipe (2) extends into the atomizing air pipe (3); the gap between the waste liquid pipe (2) and the atomizing air pipe (3) forms an annular cavity; the right end of the annular cavity is an atomizing air outlet (10); the atomizing air outlet (10) is connected to the inlet of the premixing chamber (7); the atomizing air inlet (11) on the atomizing air pipe (3) is connected to an air source; a premixing chamber (7) is provided in the spray gun head (5); the output end on the spray gun head (5) is connected to the premixing chamber (7); the waste liquid pipe outlet (8) at the right end of the waste liquid pipe (2) passes through the premixing chamber (7) and is arranged inside the output end; the waste liquid pipe inlet (9) of the waste liquid pipe (2) is connected to a waste liquid source.

2. A combined waste gas and waste liquid burner spray gun according to claim 1, characterized in that: The spray gun barrel (1), the waste liquid pipe (2), the atomizing air pipe (3), and the exhaust gas pipe (4) are all cylindrical in shape; the waste liquid pipe (2), the atomizing air pipe (3), the exhaust gas pipe (4), and the spray gun barrel (1) are coaxially aligned, and are nested from the inside to the outside to form a three-layer transmission pipeline for axial transmission.

3. A combined waste gas and waste liquid burner spray gun according to claim 1 or 2, characterized in that: An atomizing air cyclone (14) is arranged in the premixing chamber (7). The atomizing air cyclone (14) is cylindrical and is provided with an atomizing hole connecting the inner and outer cylinder circumferences of the atomizing air cyclone (14). The atomizing hole of the atomizing air cyclone (14) is an inclined hole. The atomizing hole of the atomizing air cyclone (14) is inclined along the direction from the outer cylinder toward the inner cylinder and at the same time toward the axis and the outlet direction of the premixing chamber (7).

4. A combined waste gas and waste liquid burner spray gun according to claim 3, characterized in that: The atomizing air cyclone (14) is arranged on the air passage between the atomizing air outlet (10) and the waste liquid pipe outlet (8).

5. A combined waste gas and waste liquid burner spray gun according to claim 4, characterized in that: An angle is provided between the injection direction of the exhaust gas nozzle (6) and the axis of the outlet of the premixing chamber (7), and an extension line of the exhaust gas nozzle (6) can intersect with the axis center line of the premixing chamber (7).

6. A combined waste gas and waste liquid burner spray gun according to claim 3, characterized in that: The spray direction of the exhaust gas nozzle (6) is along the tangent direction of the conical surface of the spray gun head (5), and is consistent with the rotation direction of the sprayed air flow of the atomizing air cyclone (14).

7. A combined waste gas and waste liquid burner spray gun according to claim 1, characterized in that: A first flange (16) is provided at the tail end of the exhaust pipe (4), and a second flange (17) is provided on the outer circumference of the atomizing air pipe (3); the first flange (16) and the second flange (17) are coaxial with the atomizing air pipe (3), and the first flange (16) can be detachably connected to the second flange (17).

8. The combined waste gas and waste liquid burner spray gun according to claim 1, characterized in that: A third flange (18) coaxial with the exhaust pipe inlet (13) is provided at the exhaust pipe inlet (13) for connection with a flange on an external pipeline.

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