Jacketed burner for sulfur tail gas treatment furnace
By setting jackets on the outside of the burner and heating, the sulfur condensation problem caused by heat loss in traditional burners is solved, and the normal operation and production safety of the sulfur drain pipe is achieved.
Patent Information
- Application Number
- CN202422056655.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-23
AI Technical Summary
When traditional burners treat high-concentration gaseous sulfur exhaust gas, they are prone to sulfur condensation due to heat loss, causing sulfur discharge ports to be blocked, affecting exhaust emissions and production safety.
A jacketed burner is designed to keep the outer wall of the burner at a safe temperature and prevent sulfur from condensing by setting a jacket outside and steam in the jacket.
It effectively prevents sulfur condensation, ensures the normal operation of the sulfur drain pipe, avoids blockage of the burner bottom, and reduces operating costs and safety risks.
Smart Images
Figure CN223063864U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sulfur recovery, and more specifically, to a jacketed burner for a sulfur tail gas treatment furnace. Background Art
[0002] In the production process of carbon disulfide, the efficient treatment and recovery of hydrogen sulfide tail gas is a crucial link. The tail gas mainly contains complex components such as hydrogen sulfide (H2S), sulfur dioxide (SO2), and un-recovered gaseous sulfur. If these components are directly discharged without proper treatment, it will not only cause serious environmental pollution but also affect production efficiency and product quality.
[0003] Currently, the industry generally uses the combustion method to treat such tail gas, converting harmful substances in the tail gas into harmless or low-toxic substances through combustion reactions and recovering sulfur resources. However, when traditional burners treat tail gas containing high-concentration gaseous sulfur, they often face a thorny problem: during the high-temperature combustion process of gaseous sulfur, once it encounters an area where the temperature drops suddenly or the heat dissipation is too fast (such as near the sulfur discharge port at the bottom of the burner), it is extremely easy to condense into solid sulfur, thus causing the blockage of the sulfur discharge port.
[0004] The blockage of the sulfur discharge port not only affects the normal discharge of the tail gas, resulting in an increase in the operating pressure of the production device, but may also cause a series of safety problems, such as incomplete combustion and heat accumulation. In addition, frequent shutdown cleaning will also increase the operating costs and labor burden of enterprises.
[0005] Therefore, in view of the above technical defect problems, it is necessary to propose a jacketed burner for a sulfur tail gas treatment furnace. Summary of the Utility Model
[0006] The purpose of the utility model is to propose a jacketed burner for a sulfur tail gas treatment furnace in view of the above defects. When the burner treats the tail gas generated in the production process of carbon disulfide, it can effectively prevent gaseous sulfur from condensing into solid sulfur due to heat dissipation, thus avoiding the problem of unsmooth sulfur discharge at the bottom of the burner.
[0007] The utility model provides a jacketed burner for a sulfur tail gas treatment furnace, including:
[0008] A burner body, an air inlet for allowing external air to enter is arranged at the upper end of the burner body, and an exhaust gas inlet for allowing exhaust gas to enter is arranged at the lower end of the burner body, wherein both the air inlet and the exhaust gas inlet are in communication with a combustion chamber inside the burner body;
[0009] A jacket is provided outside the burner body. During use, the jacket can wrap the burner body, and a sealed accommodation space is formed between the inner wall surface of the jacket and the outer wall surface of the burner body. At the upper end of the outer end face of the jacket, a heating unit is communicatively connected to the accommodation space.
[0010] A sulfur discharge pipe is provided at the lower end of the bottom of the jacket. The upper end of the sulfur discharge pipe passes through the accommodation space and is communicatively connected to the inner bottom end of the burner body.
[0011] Preferably, the heating unit includes a steam inlet pipe. One end of the steam inlet pipe is connected to an external steam generator or boiler, and the other end extends into the accommodation space of the jacket. During use, the steam inlet pipe can heat the outer wall of the burner body with steam.
[0012] Preferably, a condensate discharge pipe is also communicatively connected between the lower end of the bottom of the jacket and the inner bottom end face. During use, the condensate discharge pipe is used to discharge the condensate formed in the accommodation space.
[0013] Preferably, a steam trap is provided at the starting end of the condensate discharge pipe. The steam trap is any one of a float steam trap, a thermodynamic steam trap, or a thermostatic steam trap.
[0014] Preferably, a pressure regulating device is also provided between the outer side and the inner wall of the jacket. During use, the pressure regulating device can regulate the steam pressure in the jacket.
[0015] Preferably, the pressure regulating device is any one of a pressure reducing valve or a pressure regulating valve.
[0016] Preferably, the jacket has an annular cavity structure, and the internal volume of the jacket is larger than the volume of the burner body.
[0017] As can be seen from the above solution, in this solution, a wrapping jacket is provided outside the burner, and a steam inlet pipe for heating the burner is designed from the inside to the outer side of the jacket. During use, by filling the accommodation space in the jacket with steam, the steam can heat the outer wall of the burner. During the heating process, the metal outer wall of the burner body can be maintained at a safe predetermined temperature, thus avoiding the condensation phenomenon caused by the heat loss of sulfur, and further enabling the sulfur discharge pipe at the burner to discharge sulfur normally and continuously. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic structural diagram of a jacketed burner for a sulfur tail gas treatment furnace according to the present utility model.
[0019] Figure 2This is a schematic side view structure diagram of a jacketed burner for a sulfur tail gas treatment furnace of the present utility model.
[0020] Figure 1 - Figure 2 In the figure: 1 - Burner body; 11 - Exhaust gas inlet; 12 - Air port; 2 - Jacket; 21 - Accommodating space; 22 - Steam inlet pipe; 3 - Condensate drain pipe; 4 - Sulfur discharge pipe. Specific embodiments
[0021] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] As shown in the attached Figure 1 to the attached Figure 2 As shown: A jacketed burner for a sulfur tail gas treatment furnace includes a burner body 1, and an air port 12 and an exhaust gas inlet 11 provided at the upper end and the lower end of the burner body 1 respectively. Among them, there are at least 2 air ports 12, and the 2 air ports 12 are respectively communicated and arranged on the outer side surface at the upper end of the burner body 1 along the circumferential direction. And there are at least 5 exhaust gas inlets 11, and the 5 exhaust gas inlets 11 are distributed along the circumferential direction on the outer side surface at the lower end of the burner body 1. And both the air port 12 and the exhaust gas inlet 11 are in communication with the combustion cavity in the burner body 1. This design enables the external hydrogen sulfide gas to reach the burner through the exhaust gas inlet 11 for combustion, and the setting of the air port 12 can provide sufficient oxygen for the combustion process.
[0023] At the same time, there is 1 jacket 2 arranged around the outer side of the burner body 1. This jacket 2 is used to wrap the entire burner body 1. After wrapping, a closed accommodating space 21 can be formed between the inner wall surface of the jacket 2 and the outer wall surface of the burner body 1. Then, at least 1 steam inlet pipe 22 is also communicated and arranged between the upper end of the outer end surface of the jacket 2 and the accommodating space 21. One end of the steam inlet pipe 22 is connected to an external steam generator or boiler, and the other end extends into the accommodating space 21 of the jacket 2. This design allows the high-temperature hot steam to be transported to the accommodating space 21 after being combined with the steam inlet pipe 22 through an external steam generator or boiler. In this way, the closed accommodating space 21 can be heated and the temperature can be raised. After the temperature is raised, the metal outer wall of the burner body 1 can be maintained at a safe predetermined temperature, thus preventing the sulfur in the air cavity of the burner from condensing.
[0024] In addition, it should be noted that the physical freezing point of sulfur is around 121 degrees Celsius. Therefore, when the external steam generator or boiler controls the steam temperature, it should be greater than 121°. For example, the ideal temperature of the metal wall of the burner body 1 can be controlled at 135 - 140°C, which can solve the problem of unsmooth sulfur discharge at the bottom of the burner.
[0025] Furthermore, at least one sulfur discharge pipe 4 is provided at the lower end of the bottom of the jacket 2. The upper end of the sulfur discharge pipe 4 passes through the accommodation space 21 and is interconnected with the inner bottom end of the burner body 1. This design allows the burner body 1 to discharge sulfur normally through the sulfur discharge pipe 4. And during sulfur discharge, since there is high-temperature steam in the accommodation space 21, it helps to heat the sulfur in the sulfur discharge pipe 4, thus avoiding the problem of sulfur condensing into a solid state due to heat dissipation, and then enabling the sulfur discharge pipe 4 to discharge sulfur normally and continuously.
[0026] Furthermore, a condensate discharge pipe 3 is connected and provided between the lower end of the bottom of the jacket 2 and the inner bottom end face of the inner wall. During use, the condensate discharge pipe 3 is used to discharge the condensate formed at the accommodation space 21. For example, in the accommodation space 21 of the jacket 2, when the steam heats the burner body, due to a certain temperature difference between the jacket 2 and the external environment, when the hot steam in the accommodation space 21 contacts the relatively cold inner wall of the jacket 2, the temperature of the steam will decrease. According to physical principles, when the steam temperature drops below its dew point temperature, the gaseous water molecules in the steam will start to condense into liquid water. These liquid waters accumulate on the inner wall and bottom of the jacket 2, forming condensate, and the condensate discharge pipe 3 can discharge this condensate in a timely manner.
[0027] At the same time, to facilitate the automatic discharge of condensate, a steam trap is provided at the starting end of the condensate discharge pipe 3. During use, the condensate discharge pipe 3 can automatically discharge the condensate through the steam trap. When condensate is formed in the accommodation space 21 of the jacket 2 due to temperature differences and other reasons, the condensate will accumulate on the inner wall and bottom of the jacket 2. Since a steam trap is provided at the starting end of the condensate discharge pipe 3, the steam trap can sense the presence of condensate. Taking the float-type steam trap as an example, as the condensate accumulates, the water level rises, causing the float to rise accordingly. Through mechanical structures such as levers, the valve is driven to open. The condensate then flows into the condensate discharge pipe 3 through the opened valve and flows out of the system along the pipe. When the condensate is discharged to a certain extent, the water level drops, the float drops, and the valve closes to prevent steam leakage until enough condensate accumulates again to cause the float to rise and open the valve for drainage again.
[0028] In addition, it should be noted that any one of a float trap, a thermodynamic trap or a thermostatic trap can be specifically selected as the steam trap. These float traps, thermodynamic traps and thermostatic traps are all well-known existing technologies and will not be elaborated in detail here.
[0029] Furthermore, a pressure regulating device (not shown) can also be provided between the outer side and the inner wall of the jacket 2. During use, the pressure regulating device can regulate the steam pressure in the jacket 2, thus avoiding the situation of excessive steam pressure in the jacket 2. At the same time, the pressure regulating device is specifically any one of a pressure reducing valve or a pressure regulating valve. Taking the pressure reducing valve as an example, if the actual pressure is higher than the preset pressure, the valve of the pressure reducing valve will automatically adjust. Usually, the opening of the valve is changed by the compression or extension of the spring to reduce the inflow of steam or increase the outflow of steam, so as to reduce the pressure in the jacket 2 and make it gradually tend to the preset pressure value. When the pressure reaches equilibrium, the valve remains at the corresponding opening to maintain a stable pressure.
[0030] Furthermore, the jacket 2 has an annular cavity structure, and the internal volume of the jacket 2 is larger than the volume of the burner body 1. Through this design, the formed accommodating space 21 can wrap the burner body 1 without dead angles, so that the steam can evenly cover the outer wall of the burner body 1, thereby avoiding the situation of insufficient local temperature and reducing the problems of sulfur condensation or other adverse chemical reactions caused by temperature differences.
[0031] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed in the present application can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be the protection scope of the claims.
Claims
1. A jacketed burner for a sulfur tail gas treatment furnace, characterized in that, Comprising: A burner body (1), an air inlet (12) for allowing external air to enter is provided at the upper end of the burner body (1), and an exhaust gas inlet (11) for allowing exhaust gas to enter is provided at the lower end of the burner body (1), wherein both the air inlet (12) and the exhaust gas inlet (11) are in communication with a combustion chamber inside the burner body (1); A jacket (2), the jacket (2) is arranged around the outside of the burner body (1), during use, the jacket (2) can wrap the burner body (1), a sealed accommodation space (21) is formed between the inner wall surface of the jacket (2) and the outer wall surface of the burner body (1), and a heating unit is communicated between the upper end of the outer end surface of the jacket (2) and the accommodation space (21); A sulfur discharge pipe (4), the sulfur discharge pipe (4) is arranged at the lower end of the bottom of the jacket (2), and the upper end of the sulfur discharge pipe (4) passes through the accommodation space (21) and is in communication with the inner bottom end of the burner body (1).
2. The jacketed burner for a sulfur tail gas treatment furnace according to claim 1, characterized in that: The heating unit includes a steam inlet pipe (22), one end of the steam inlet pipe (22) is connected to an external steam generator or boiler, and the other end extends into the accommodation space (21) of the jacket (2), during use, the steam inlet pipe (22) can heat the outer wall of the burner body (1) with steam.
3. The jacketed burner for a sulfur tail gas treatment furnace according to claim 1, characterized in that: A condensate discharge pipe (3) is also communicated between the lower end of the bottom of the jacket (2) and the inner bottom end surface, during use, the condensate discharge pipe (3) is used to discharge the condensed water formed at the accommodation space (21).
4. A jacketed burner for a sulfur tail gas treatment furnace according to claim 3, characterized in that: A steam trap is also provided at the starting end of the condensate discharge pipe (3), and the steam trap is specifically any one of a float type steam trap, a thermodynamic steam trap or a thermostatic steam trap.
5. A jacketed burner for a sulfur tail gas treatment furnace according to claim 1, characterized in that: A pressure regulating device is also arranged between the outer side surface and the inner wall of the jacket (2), during use, the pressure regulating device can regulate the steam pressure inside the jacket (2).
6. The jacketed burner for a sulfur tail gas treatment furnace according to claim 5, characterized in that: The pressure regulating device is specifically any one of a pressure reducing valve or a pressure regulating valve.
7. A jacketed burner for a sulfur tail gas treatment furnace according to claim 1, characterized in that: The jacket (2) has an annular cavity structure, and the internal volume of the jacket (2) is larger than the volume of the burner body (1).