Sulfur spray gun

Abstract

The utility model relates to the technical field of spraying devices, and particularly discloses a sulfur spraying gun which comprises a gun body, and a liquid sulfur cavity is formed in the gun body and used for allowing liquid sulfur to pass through; the steam jacketed pipe is arranged on the periphery of the gun body in a sleeving mode, a first steam cavity is formed between the steam jacketed pipe and the gun body, and an air inlet pipe is arranged on the steam jacketed pipe and communicated with the steam cavity; the second sleeve is arranged on the periphery of the steam jacket pipe in a sleeving mode, a second steam cavity is formed between the second sleeve and the steam jacket pipe and communicated with the first steam cavity, and an air outlet pipe is arranged on the second sleeve and communicated with the second steam cavity; the preheating assembly is arranged at the inlet; the anti-condensation assembly is arranged at the outlet. The device has the effects of preventing liquid sulfur from being solidified and uniformly heating.

Description

Technical Field

[0001] This application relates to the technical field of spraying devices, and in particular to a sulfur spray gun. Background Technology

[0002] A sulfur spray gun is a device installed on a sulfur incinerator in a liquid sulfur acid production system to provide atomized liquid sulfur to the incinerator. It generally consists of a three-layer pipe structure, consisting of a liquid sulfur pipe, a steam jacket pipe, and an outer pipe. When the temperature of the incinerator changes greatly or the steam process fluctuates greatly, existing spray guns mostly use single electric heating or steam tracing, which has problems such as uneven heating and temperature control lag. They cannot adapt to the drastic changes in sulfur viscosity with temperature. Sulfur is prone to solidification during transportation due to temperature fluctuations (especially below 120°C), which leads to blockage of the internal flow channels and nozzles of the spray gun, requiring frequent shutdowns for cleaning. Utility Model Content

[0003] To address the problem of sulfur spray guns easily solidifying due to temperature fluctuations, this application provides a sulfur spray gun.

[0004] On the one hand, the sulfur spray gun provided in this application adopts the following technical solution:

[0005] A sulfur spray gun, comprising:

[0006] The gun body has a liquid sulfur chamber, with one end of the liquid sulfur chamber being the inlet and the other end being the outlet. The liquid sulfur chamber is used to supply liquid sulfur.

[0007] A steam jacket is fitted around the outside of the gun body, forming a first steam chamber between the steam jacket and the gun body. An air inlet pipe is provided on the steam jacket and is connected to the steam chamber.

[0008] The second sleeve is fitted around the outer periphery of the steam jacket pipe. A second steam chamber is formed between the second sleeve and the steam jacket pipe. The second steam chamber is connected to the first steam chamber. An outlet pipe is provided on the second sleeve and is connected to the second steam chamber.

[0009] A preheating component is located at the inlet to heat the inlet end of the gun body;

[0010] An anti-condensation component is installed at the outlet to heat the outlet end of the gun body.

[0011] By adopting the above technical solution and setting a second sleeve, the flow path of steam can be extended, achieving better heating effect. The three independent temperature control zones of the preheating component, steam jacket pipe, second sleeve pipe, and anti-condensation component can set independent temperatures for three different parts of the sulfur spray gun according to the actual situation, achieving better heating and anti-condensation effects, thereby minimizing nozzle clogging.

[0012] In some embodiments, the preheating assembly includes a heating tube and an insulation sleeve, with the insulation sleeve fitted over the inlet of the gun body and the heating tube wound between the gun body and the insulation sleeve to heat the gun body at the inlet.

[0013] By adopting the above technical solution and setting up a preheating component, sulfur can be heated from a solid state to a molten state, thus minimizing the possibility of sulfur solidifying at the inlet of the liquid sulfur chamber.

[0014] In some embodiments, the anti-condensation component includes a heater and a heating jacket, with the heating jacket fitted over the outlet of the gun body and the heater disposed between the heating jacket and the gun body to heat the gun body at the outlet.

[0015] By adopting the above technical solution, the anti-condensation component can heat the sulfur at the nozzle, minimizing the solidification of liquid sulfur before it is sprayed out, thus achieving a better spraying effect.

[0016] In some embodiments, an expansion sleeve is fitted around the outer periphery of the second sleeve, and the expansion sleeve is detachably connected to the second sleeve.

[0017] By adopting the above technical solution and setting an expansion sleeve, the axial, lateral and angular displacement of the pipeline caused by temperature changes can be absorbed, preventing the gun body from being damaged by thermal expansion and contraction, and extending the service life of the sulfur spray gun.

[0018] In some embodiments, the second sleeve is provided with a connecting flange, and the expansion sleeve includes a first connecting part, a second connecting part and an expansion joint. The first connecting part is located at one end of the expansion joint, and the second connecting part is located at the other end of the expansion joint. The first connecting part is connected to the connecting flange, and the second connecting part is in contact with the end face of the second sleeve.

[0019] By adopting the above technical solution, the expansion sleeve is connected to the connecting flange through the first connecting part, and the second connecting part contacts the end face of the second sleeve, which facilitates the disassembly and assembly of the expansion sleeve, makes it easy to replace, and is convenient to operate.

[0020] In some embodiments, a plurality of first support members are provided in the first steam chamber, one end of each first support member being connected to the outer wall of the gun body and the other end being connected to the inner wall of the steam jacket pipe; a plurality of second support members are provided in the second steam chamber, one end of each second support member being connected to the outer wall of the steam jacket pipe and the other end being connected to the inner wall of the second jacket pipe.

[0021] By adopting the above technical solution and setting the first and second support components, the structural strength of the sulfur spray gun can be enhanced, and deformation of the sulfur spray gun due to temperature changes can be minimized.

[0022] In some implementations, the wall thickness of the gun body increases from the inlet to the outlet.

[0023] By adopting the above technical solution, the structural strength at the outlet of the sulfur spray gun can be enhanced, further preventing the sulfur spray gun from deforming.

[0024] In some embodiments, a honeycomb sandwich structure is provided inside the heating jacket.

[0025] By adopting the above technical solutions, the weight can be reduced and the bending stiffness can be improved. The honeycomb sandwich structure can also absorb thermal stress through directional deformation and improve the uniformity of thermal deformation.

[0026] In some embodiments, a guide plate is provided inside the liquid sulfur chamber, and the guide plate is arranged in a spiral.

[0027] By adopting the above technical solutions, the flow plate can further enhance the support effect on the gun body, increase the structural strength of the gun body, and reduce flow resistance.

[0028] In some embodiments, the inner wall of the liquid sulfur chamber is provided with a nano-ceramic coating.

[0029] By adopting the above technical solution, the nano-ceramic coating can reduce sulfur adhesion, making it easier to clean the spray gun and reducing sulfur adhesion to the inner wall of the gun.

[0030] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0031] 1. By setting up three independent temperature control zones for the preheating component, steam jacket pipe, second jacket pipe, and anti-condensation component, the temperature of the three different parts of the sulfur spray gun can be set independently according to the actual situation, so as to achieve better heating and anti-condensation effects.

[0032] 2. By incorporating an expansion sleeve, the sleeve can absorb axial, lateral, and angular displacements in the pipeline caused by temperature changes, preventing damage to the gun body due to thermal expansion and contraction. Since the first connection part is detachably connected to the connecting flange, the expansion sleeve can be easily disassembled and replaced.

[0033] 3. By setting up the first and second support components, the structural strength of the sulfur spray gun can be enhanced, and deformation of the sulfur spray gun due to temperature changes during use can be minimized. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the sulfur spray gun in the embodiments of this application.

[0035] Figure 2 This is a cross-sectional view of the internal structure of the sulfur spray gun in the embodiment of this application.

[0036] In the picture:

[0037] 1. Gun body; 11. Liquid sulfur chamber; 12. Inlet; 13. Outlet; 2. Steam jacket pipe; 21. First steam chamber; 22. Air inlet pipe; 24. First support component; 3. Second sleeve; 31. Second steam chamber; 32. Air outlet pipe; 33. Second support component; 4. Preheating assembly; 41. Heating pipe; 42. Insulation sleeve; 5. Anti-condensation assembly; 51. Heater; 52. Heating sleeve; 6. Expansion sleeve; 61. First connecting part; 62. Second connecting part; 63. Expansion joint; 7. Connecting flange. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0040] Reference Figure 1 and Figure 2 The application provides a sulfur spray gun, including a gun body 1, with a liquid sulfur chamber 11 inside the gun body 1. One end of the liquid sulfur chamber 11 is an inlet 12, and the other end is an outlet 13. Liquid sulfur enters the liquid sulfur chamber 11 through the inlet 12 and exits through the outlet 13. The liquid sulfur chamber 11 is used to supply liquid sulfur. The inner wall of the liquid sulfur chamber 11 is provided with a nano-ceramic coating, which can reduce sulfur adhesion. The sulfur spray gun also includes a steam jacket pipe 2 and a second sleeve pipe 3. The steam jacket pipe 2 is sleeved on the outer periphery of the gun body 1, and a first steam chamber 21 is formed between the steam jacket pipe 2 and the gun body 1. An air inlet pipe 22 is provided on the steam jacket pipe 2, and the air inlet pipe 22 is connected to the first steam chamber 21. The second sleeve pipe 3 is sleeved on the outer periphery of the steam jacket pipe 2, and a second steam chamber 31 is formed between the second sleeve pipe 3 and the steam jacket pipe 2. The second steam chamber 31 is connected to the first steam chamber 21. An air outlet pipe 32 is provided on the second sleeve pipe 3, and the air outlet pipe 32 is connected to the second steam chamber 31.

[0041] Liquid sulfur, generated by a sulfur pump under high pressure, is rapidly sprayed out through a sulfur spray nozzle. During this high-speed spraying process, a special nozzle diffuses the liquid sulfur into a fan-shaped mist with a diffusion angle of up to 120°. The nozzle technology is existing and will not be described in detail here. A steam jacket pipe 2 is installed, allowing high-temperature steam to enter the first steam chamber 21 from the inlet pipe 22, then from the first steam chamber 21 into the second steam chamber 31, and finally exit from the outlet pipe 32. The steam provides a stable heat source, ensuring complete combustion and atomization of the sulfur. The first steam chamber 21 and the second steam chamber 31 extend the steam flow path, achieving better heating performance.

[0042] Furthermore, the sulfur spray gun also includes a preheating component 4 and an anti-condensation component 5. The preheating component 4 is located at the inlet 12 to heat the inlet 12 end of the gun body 1. The preheating component 4 includes a heating tube 41 and an insulation sleeve 42. The insulation sleeve 42 is fitted onto the inlet 12 of the gun body 1, and the heating tube 41 is wound between the gun body 1 and the insulation sleeve 42. In this embodiment, the heating tube 41 is specifically a spiral heating wire. The heating tube 41 can heat the sulfur from a solid state to a molten state, minimizing the possibility of the sulfur solidifying at the inlet 12 of the liquid sulfur chamber 11.

[0043] An anti-condensation component 5 is located at the outlet 13 to heat the outlet 13 end of the gun body 1. The anti-condensation component 5 includes a heater 51 and a heating sleeve 52. The heating sleeve 52 is fitted onto the outlet 13 of the gun body 1, and the heater 51 is located between the heating sleeve 52 and the gun body 1. In this embodiment, the heater 51 is specifically a miniature infrared radiation heater 51. The heater 51 can heat the sulfur at the nozzle, minimizing the solidification of liquid sulfur before spraying, thus achieving a better spraying effect.

[0044] By setting up three independent temperature control zones—preheating component 4, steam jacket pipe 2, second sleeve pipe 3, and anti-condensation component 5—independent temperatures can be set for three different parts of the sulfur spray gun according to actual conditions, achieving better heating and anti-condensation effects. It is easy to understand that in some embodiments, temperature sensors can also be installed in each temperature control zone to ensure that the sulfur viscosity is ≤50 mPa·s throughout the process.

[0045] Furthermore, an expansion sleeve 6 is fitted around the outer periphery of the second sleeve 3, and the expansion sleeve 6 is detachably connected to the second sleeve 3. A connecting flange 7 is provided on the second sleeve 3, fixed to the outer peripheral wall of the second sleeve 3. The connecting flange 7 is used to fix the sulfur spray gun, ensuring the stability of the sulfur spray gun during use. Specifically, the expansion sleeve 6 includes a first connecting part 61, a second connecting part 62, and an expansion joint 63. The first connecting part 61 is fixed to one end of the expansion joint 63, and the second connecting part 62 is fixed to the other end of the expansion joint 63. The first connecting part 61 is detachably connected to the connecting flange 7, and the second connecting part 62 contacts the end face of the second sleeve 3. By providing the expansion sleeve 6, the expansion sleeve 6 can absorb the axial, lateral, and angular displacement of the pipeline caused by temperature changes, preventing damage to the gun body 1 due to thermal expansion and contraction. Since the first connecting part 61 is detachably connected to the connecting flange 7, it is convenient to disassemble and replace the expansion sleeve 6.

[0046] In some embodiments, a plurality of first support members 24 are provided in the first steam chamber 21. One end of each first support member 24 is fixedly connected to the outer wall of the gun body 1, and the other end is fixedly connected to the inner wall of the steam jacket pipe 2. The first support members 24 are arranged in a group at intervals along the circumference of the outer wall of the gun body 1, and multiple groups are arranged along the axial direction of the gun body 1. A plurality of second support members 33 are provided in the second steam chamber 31. One end of each second support member 33 is connected to the outer wall of the steam jacket pipe 2, and the other end is connected to the inner wall of the second sleeve 3. The first support members 24 are arranged in a group at intervals along the circumference of the outer wall of the gun body 1, and multiple groups are arranged along the axial direction of the gun body 1. In this embodiment, the first support member 24 and the second support member 33 are both support rods. In other embodiments, the first support member 24 and the second support member 33 can also be support plates or support sheets, which are not limited here. By setting the first support member 24 and the second support member 33, the structural strength of the sulfur spray gun can be enhanced, and deformation of the sulfur spray gun due to temperature changes during use can be avoided as much as possible.

[0047] Furthermore, in this embodiment, the wall thickness of the gun body 1 increases from the inlet 12 to the outlet 13. Specifically, the wall thickness of the gun body 1 at the inlet 12 is preferably 8 mm, and the wall thickness of the gun body 1 at the outlet 13 is preferably 12 mm. This further enhances the structural strength of the sulfur spray gun and further prevents deformation. In some embodiments, a guide plate (not shown in the figure) is provided inside the gun body 1. The guide plate is spirally arranged, with a height of 2 mm and a pitch of 15 mm. The guide plate further strengthens the support effect on the gun body 1, enhances the structural strength of the gun body 1, and also reduces flow resistance.

[0048] In some embodiments, the heating jacket 52 is provided with a honeycomb sandwich structure (not shown in the figure), with the honeycomb unit having a side length of 5 mm and a wall thickness of 0.5 mm. By providing a honeycomb sandwich structure, the weight can be reduced and the bending stiffness can be improved. The honeycomb sandwich structure can also absorb thermal stress through directional deformation, thereby improving the uniformity of thermal deformation.

[0049] The implementation principle of this embodiment is as follows: Sulfur enters the liquid sulfur chamber 11 from the inlet 12. High pressure forces the liquid sulfur to be rapidly sprayed out through the nozzle. During the spraying process, the liquid sulfur diffuses into a fan-shaped mist through a special nozzle. Simultaneously, steam enters the first steam chamber 21 from the inlet pipe 22, then enters the second steam chamber 31 through the first steam chamber 21, and is discharged from the outlet pipe 32. The steam circulates within the first steam chamber 21 and the second steam chamber 31, providing a stable heat source for the sulfur spray gun and achieving a good heating effect. At the same time, the preheating component 4 heats the inlet 12 of the sulfur spray gun, and the anti-condensation component 5 heats the outlet 13 of the sulfur spray gun, so as to avoid uneven heating during the use of the sulfur spray gun, which would cause the liquid sulfur to solidify and adhere to the inner wall of the gun body 1, thereby ensuring the spraying effect of the sulfur spray gun.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sulfur spray gun, characterized in that, include: The gun body (1) has a liquid sulfur chamber (11), one end of which is an inlet (12) and the other end is an outlet (13). The liquid sulfur chamber (11) is used to supply liquid sulfur. A steam jacket pipe (2) is sleeved on the outer periphery of the gun body (1). A first steam chamber (21) is formed between the steam jacket pipe (2) and the gun body (1). An air inlet pipe (22) is provided on the steam jacket pipe (2). The air inlet pipe (22) is connected to the first steam chamber (21). The second sleeve (3) is sleeved on the outer periphery of the steam jacket pipe (2). A second steam chamber (31) is formed between the second sleeve (3) and the steam jacket pipe (2). The second steam chamber (31) is connected to the first steam chamber (21). An exhaust pipe (32) is provided on the second sleeve (3). The exhaust pipe (32) is connected to the second steam chamber (31). A preheating component (4) is provided at the inlet (12) to heat the inlet (12) end of the gun body (1); An anti-condensation component (5) is provided at the outlet (13) to heat the outlet (13) end of the gun body (1).

2. The sulfur spray gun according to claim 1, characterized in that: The preheating component (4) includes a heating tube (41) and a heat insulation sleeve (42). The heat insulation sleeve (42) is fitted onto the inlet (12) of the gun body (1). The heating tube (41) is wrapped between the gun body (1) and the heat insulation sleeve (42) to heat the gun body (1) at the inlet (12).

3. A sulfur spray gun according to claim 2, characterized in that: The anti-condensation component (5) includes a heater (51) and a heating sleeve (52). The heating sleeve (52) is fitted onto the outlet (13) of the gun body (1), and the heater (51) is disposed between the heating sleeve (52) and the gun body (1) to heat the gun body (1) at the outlet (13).

4. A sulfur spray gun according to claim 1, characterized in that: An expansion sleeve (6) is fitted around the outer periphery of the second sleeve (3), and the expansion sleeve (6) is detachably connected to the second sleeve (3).

5. A sulfur spray gun according to claim 4, characterized in that: The second sleeve (3) is provided with a connecting flange (7). The expansion sleeve (6) includes a first connecting part (61), a second connecting part (62) and an expansion joint (63). The first connecting part (61) is located at one end of the expansion joint (63), and the second connecting part (62) is located at the other end of the expansion joint (63). The first connecting part (61) is connected to the connecting flange (7), and the second connecting part (62) is in contact with the end face of the second sleeve (3).

6. A sulfur spray gun according to claim 1, characterized in that: The first steam chamber (21) is provided with a plurality of first support members (24), one end of each first support member (24) is connected to the outer wall of the gun body (1), and the other end is connected to the inner wall of the steam jacket pipe (2); the second steam chamber (31) is provided with a plurality of second support members (33), one end of each second support member (33) is connected to the outer wall of the steam jacket pipe (2), and the other end is connected to the inner wall of the second sleeve (3).

7. A sulfur spray gun according to claim 1, characterized in that: The wall thickness of the gun body (1) increases from the inlet (12) to the outlet (13).

8. A sulfur spray gun according to claim 3, characterized in that: The heating jacket (52) is provided with a honeycomb sandwich structure.

9. A sulfur spray gun according to claim 1, characterized in that: A guide plate is provided inside the liquid sulfur chamber (11), and the guide plate is arranged in a spiral.

10. A sulfur spray gun according to claim 1, characterized in that: The inner wall of the liquid sulfur chamber (11) is provided with a nano-ceramic coating.

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