CN218048472U

CN218048472U - Sulfur spray gun

Info

Publication number: CN218048472U
Application number: CN202221184269.6U
Authority: CN
Inventors: 朱国豪; 王勇; 罗文林; 谌鸿飞; 李臻
Original assignee: Guizhou Kailin Group Co Ltd
Current assignee: Guizhou Kailin Group Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-12-16
Anticipated expiration: 2032-05-16

Abstract

The application discloses sulphur spray gun for when sulphur spray gun expansion joint damaged, need not to shut down and make sour equipment just can handle, improve accident handling efficiency. The sulfur spray gun of the present application comprises: the gun comprises a gun shell, a spray pipe, a spray head and an expansion joint; the gun shell penetrates through the outer wall of the sulfur burner, one end of the gun shell is positioned inside the sulfur burner, and the other end of the gun shell is positioned outside the sulfur burner; the spray pipe is positioned in the gun shell and penetrates through the gun shell, one end, facing the interior of the sulfur incinerator, of the spray pipe is connected with the spray head, and the spray head is used for spraying liquid sulfur in the spray pipe to the interior of the sulfur incinerator; the expansion joint is connected with the inner wall of the spray pipe and arranged outside the sulfur incinerator, and the expansion joint is used for compensating the thermal expansion difference generated by the spray pipe and the gun shell.

Description

Sulfur spray gun

Technical Field

The application relates to the technical field of sulfuric acid production equipment, in particular to a sulfur spray gun.

Background

With the acceleration of the industrialization process in China, the sulfuric acid industrial technology is continuously developed.

The sulfur incinerator is an important device in the acid making process, and the prior sulfur incinerator adopts an air blower to blow dry air into the sulfur incinerator through a cyclone flow guide device, fully contacts with liquid sulfur sprayed from a refined sulfur pump through a sulfur spray gun in the sulfur incinerator, and burns at high temperature, so as to generate sulfur dioxide with certain concentration. Wherein, the sulfur spray gun can extend into the sulfur incinerator for use.

But the expansion joint of sulphur spray gun is comparatively fragile compared with the sulphur spray gun spray pipe, receive the difference in temperature in the use, steam pressure and stress stretch etc. influence, take place the damage easily, the condition of leaking appears, the steam that leaks can get into conversion system and cause converter catalyst tie plate pulverization, influence the conversion rate, can produce a large amount of condensation acid in conversion back end heat exchanger department, cause the corruption to heat exchange equipment and pipeline, the absorptivity descends, lead to the environmental protection accident that desulfurization tail gas exceeds standard, increase liquid ammonia consumption increase cost, the expansion joint is inside the sulphur burning furnace, must shut down the acid making equipment and handle when taking place the damage, the accident treatment inefficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides a sulfur spray gun for when the sulfur spray gun expansion joint damages, need not to shut down and make sour equipment just can handle, improve accident handling efficiency.

The application provides a sulphur spray gun is applied to the inside liquid sulphur atomization of burning sulphur stove and handles, includes: the gun comprises a gun shell, a spray pipe, a spray head and an expansion joint;

the gun shell penetrates through the outer wall of the sulfur burner, one end of the gun shell is positioned inside the sulfur burner, and the other end of the gun shell is positioned outside the sulfur burner;

the spray pipe is positioned in the gun shell and penetrates through the gun shell, one end, facing the interior of the sulfur burner, of the spray pipe is connected with the spray head, and the spray head is used for spraying liquid sulfur in the spray pipe to the interior of the sulfur burner;

the expansion joint is connected with the inner wall of the spray pipe and arranged outside the sulfur burner, and is used for compensating the thermal expansion difference generated by the spray pipe and the gun shell.

Optionally, a steam inlet and a steam outlet are arranged on the gun shell, and the steam inlet is communicated with the steam outlet to introduce steam from the steam inlet and guide steam out from the steam outlet to preheat the gun shell and the spray pipe.

Optionally, the corresponding axis of the nozzle tube matches the corresponding axis of the gun housing.

Optionally, a support ring is arranged at a gap between the spray pipe and the gun shell, and the support ring is welded with the gun shell and attached to the outer wall of the spray pipe.

Optionally, the gun housing and the lance are made of heat resistant steel.

Optionally, a fixing member is arranged on the gun shell;

the fixing piece is fixedly connected with the gun shell and used for fixing the gun shell at the position where the gun shell penetrates through the sulfur incinerator.

Optionally, the expansion joint is a wave shaped expansion joint.

Optionally, the nozzle is in a shape of a circular truncated cone, one end with a smaller diameter is connected with the tail end of the spray pipe, and a spray hole is formed in the middle of the nozzle.

Optionally, the spray pipe and the spray head are in threaded connection.

Optionally, a high-temperature sealing ring is arranged at the joint of the spray head and the spray pipe.

According to the technical scheme, the embodiment of the application has the following advantages:

the application provides a sulphur spray gun with the expansion joint setting at the sulphur spray gun and not stretch into and burn the sulphur stove section, because the expansion joint is comparatively fragile, receives the influence of multiple factors such as temperature difference, stress in the use, easily takes place to damage, when maintaining, needs to close and stops the system acid equipment, the accident handling efficiency is low, the expansion joint setting is outside burning the sulphur stove in this application, need not to close and stops the system acid equipment and just can handle, has improved accident handling efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the present application, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings may be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the sulfur lance of the present application.

Detailed Description

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for explaining relative positional relationships between the respective components or constituent parts, and do not particularly limit specific mounting orientations of the respective components or constituent parts.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In addition, the structures, the proportions, the sizes, and the like, which are illustrated in the accompanying drawings and described in the present application, are intended to be considered illustrative and not restrictive, and therefore, not limiting, since those skilled in the art will understand and read the present application, it is understood that any modifications of the structures, changes in the proportions, or adjustments in the sizes, which are not necessarily essential to the practice of the present application, are intended to be within the scope of the present disclosure without affecting the efficacy and attainment of the same.

Referring to fig. 1, fig. 1 is a schematic structural view of a sulfur spray gun provided by the present application, the sulfur spray gun provided by the present application includes: the gun comprises a gun shell 1, a spray pipe 2, a spray head and an expansion joint 3;

the gun shell 1 penetrates through the outer wall of the sulfur burner, one end of the gun shell is positioned inside the sulfur burner, and the other end of the gun shell is positioned outside the sulfur burner;

the spray pipe 2 is positioned in the gun shell 1 and penetrates through the gun shell 1, one end of the spray pipe 2 facing the interior of the sulfur incinerator is connected with a spray head, and the spray head is used for spraying liquid sulfur in the spray pipe 2 to the interior of the sulfur incinerator;

the expansion joint 3 is connected with the inner wall of the spray pipe 2 and is arranged outside the sulfur incinerator, and the expansion joint 3 is used for compensating the thermal expansion difference generated by the spray pipe 2 and the gun shell 1.

In actual production life, the sulfur spray gun is a pressure type liquid sulfur atomization spray gun, also called a sulfur gun or a sulfur gun, and is mainly used for liquid sulfur atomization of sulfur-making acid, so that sulfur can be conveniently and fully combusted. The sulfur spray gun extends into the sulfur burning furnace, high-pressure liquid generated by the sulfur pump is sprayed out quickly through the sulfur spray gun nozzle, and the liquid sulfur is diffused into mist in the high-speed spraying process, wherein the diffusion angle can reach 120 degrees. The atomized sulfur fog particles and hot air are fully and quickly combusted and reacted to generate SO ₂ To complete SO ₂ And (4) a preparation process. In order to ensure good fluidity of the sulfur, the sulfur gun adopts a steam heat-preservation jacket, and the steam is introduced to preheat the gun body and heat the sulfur, so that the sulfur gun adapts to the working environment of the sulfur incinerator. During preheating, when the body of the sulfur lance is heated up, the pipe is deformed or damaged due to thermal elongation or temperature stress, and therefore, a compensator, namely an expansion joint 3, is required to be arranged for compensating the thermal elongation of the pipe, so that the stress of the body of the lance is reduced. In practical useThe expansion joint 3 is fragile, is influenced by various factors in the use process, is easy to damage, leads to leakage, produces the influence that is difficult to estimate, and the expansion joint 3 is arranged and stretches into the sulfur burning furnace section at the sulfur spray gun, so need shut down the acid making equipment and just can carry out maintenance processing, therefore the accident handling efficiency is low, has also wasted manpower and materials. The application provides a sulphur spray gun does not stretch into at the sulphur spray gun with expansion joint 3 and burns sulphur stove section, can this problem of effectual solution.

It should be noted that the expansion joint 3 has many kinds, and the common structures include a corrugated structure, a ring plate welding structure, a sandwich structure, and the like, wherein the corrugated expansion joint 3 is most widely used. The expansion joint 3 used in the present application is a wave-shaped expansion joint 3. The wave expansion joint 3 is typically made up of corrugated tubing and fittings such as end pipes, brackets, flanges, conduits, etc. The effective telescopic deformation of the working main body corrugated pipe is utilized to absorb the size change of pipelines, conduits, containers and the like caused by expansion with heat and contraction with cold and the like, the deformation or damage of the pipelines caused by thermal extension or temperature stress can be effectively prevented when the temperature of a heat supply pipeline is raised, the thermal extension of the pipelines can be compensated by the expansion joints 3, and therefore the stress of the pipe wall and the acting force acting on the valve piece or the support structure are reduced. The bellows expansion joint 3 can be used in piping with a maximum pressure of 6.0 mpa. In order to prevent damage to the expansion joint 3 due to exceeding the allowable compensation amount, protective rods or rings may be provided at both ends of the bellows of the expansion joint 3. It can be understood that, in order to prevent the expansion joint 3 from being damaged, a plurality of expansion joints 3 may be further provided, for example, when the gun shell receives a large temperature stress, one expansion joint 3 cannot meet the requirement, two expansion joints 3 may be provided on the gun shell outside the sulfur incinerator, and the number of the expansion joints may be determined according to the actual requirement, which is not limited herein.

It is noted that the sulfur burning furnace is generally a cylindrical horizontal device, and the sulfur burning work is carried out in the cylinder. The gun shell 1 penetrates through the outer wall of the sulfur burning furnace and is provided with a through hole, and the size of the through hole is matched with that of the gun shell 1.

Optionally, the gun housing 1 is provided with a steam inlet and a steam outlet, and the steam inlet is communicated with the steam outlet to introduce steam from the steam inlet and discharge steam from the steam outlet to preheat the gun housing 1 and the spray pipe 2 to adapt to the working environment of the sulfur burner.

Optionally, the corresponding axis of the spray pipe 2 is matched with the corresponding axis of the gun housing 1, and the sections of the gun housing 1 and the spray pipe 2 are concentric.

Optionally, a support ring is arranged at a gap between the spray pipe 2 and the gun housing 1, and the support ring is welded with the gun housing 1 and attached to the outer wall of the spray pipe 2. The ring width of this support ring is unanimous with the clearance length that spray tube 2 and rifle shell 1 produced, and spray tube 2 passes the center circle of support ring, and spray tube 2 diameter matches with the center circle, and the support ring is used for avoiding spray tube 2 and rifle shell 1 direct contact, makes spray gun and rifle shell 1 can form certain space, supplies letting in of steam.

Alternatively, the gun housing 1 and the lance 2 are made of heat resistant steel. The heat-resistant steel can have higher strength and good chemical stability at high temperature and can work at high temperature, so that the heat-resistant steel can be used as a manufacturing material of the gun shell 1 and the spray pipe 2, and the sulfur spray gun can extend into a sulfur incinerator to work.

Optionally, the gun housing 1 is provided with a fixing member, and the fixing member is fixedly connected with the gun housing 1 and is used for fixing the gun housing 1 at a position where the gun housing 1 passes through the sulfur burner. The fixing member may be a flange.

Optionally, the spray head is in a shape of a circular truncated cone, one end with a smaller diameter is connected with the tail end of the spray pipe 2, and a spray hole is formed in the middle of the spray head. In practical application, the sulfur pump changes liquid sulfur into high-pressure liquid, and the high-pressure liquid is sprayed out through the spray holes of the spray head.

Optionally, spray tube 2 and shower nozzle adopt threaded connection, and 2 inside external screw threads that are provided with of spray tube, and the shower nozzle sets up the external screw thread with the outside of 2 junctions of spray tube, and the coupling part of shower nozzle can be through in external screw thread and the internal thread screw in spray tube 2. It will be appreciated that a flanged connection may also be used.

Optionally, the shower nozzle is provided with the high temperature sealing washer with 2 junctions of spray tube, prevents to let in the sulphur of spray tube 2 and reveals, and the injection effect is poor.

It should be noted that the above-mentioned disclosure and the detailed description are intended to demonstrate the practical application of the technical solutions provided in the present application, and should not be construed as limiting the scope of the present application. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the present application. The protection scope of this application is subject to the appended claims.

Claims

1. The utility model provides a sulphur spray gun, is applied to the inside liquid sulphur atomization of sulfur burning furnace and handles which characterized in that includes: the gun comprises a gun shell, a spray pipe, a spray head and an expansion joint;

2. A sulphur spray gun according to claim 1, wherein the gun housing is provided with a steam inlet and a steam outlet, the steam inlet communicating with the steam outlet to direct steam from the steam inlet and out of the steam outlet to preheat the gun housing and lance.

3. A sulphur spray gun according to claim 1, wherein the axis of the lance corresponds to the axis of the gun housing.

4. The sulfur lance of claim 1, wherein a support ring is disposed in a gap between the lance tube and the lance housing, and the support ring is welded to the lance housing and attached to an outer wall of the lance tube.

5. A sulphur spray gun according to claim 1, wherein the gun housing and the lance are made of heat resistant steel.

6. A sulphur lance according to any one of claims 1 to 5, wherein said lance housing is provided with a fixing;

7. A sulphur spray gun according to any of claims 1 to 5, wherein the expansion joint is a wave shaped expansion joint.

8. A sulfur spray gun according to any one of claims 1 to 5, wherein the spray head is in the form of a truncated cone, the end with the smaller diameter is connected to the end of the spray pipe, and a spray hole is provided in the middle of the spray head.

9. The sulfur lance of claim 8, wherein the lance is threadably connected to the nozzle head.

10. A sulphur spray gun according to any of claims 1 to 5, wherein a high temperature seal is provided at the junction of the spray head and the lance.