Sulfur feeding device capable of avoiding material blockage

Abstract

The utility model relates to the technical field of sulfur processing equipment, in particular to a sulfur feeding device capable of avoiding material blockage, which comprises a feeding component, the feeding component is mounted at the top feeding end of a sulfur melting tank, the top end of the feeding component is connected with a conveying belt, a hopper is mounted above the bottom end of the conveying belt, and the feeding component comprises a conveying pipeline. And a steam jacket pipe is mounted at the bottom end of the conveying pipeline. According to the sulfur feeding device capable of avoiding material blockage, the steam jacketed pipe is introduced into the feeding assembly, the temperature of the feeding pipeline is kept through steam heating, and acid gas is effectively prevented from being enriched at a low-temperature point, so that the corrosion phenomenon is remarkably reduced, the service life of equipment is prolonged, and production halt loss and equipment replacement cost caused by corrosion are reduced. Due to the design of the steam jacket pipe, the feeding hole and the conveying pipeline are kept at a certain temperature, so that attached solid and liquid sulfur can be melted in time, the accumulation and blockage of the sulfur at the feeding hole are avoided, the overflowing accident is prevented, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfur processing equipment, in particular to a sulfur feeding device which can avoid material blockage. Background Art

[0002] In the sulfur refining unit, the sulfur melting tank is one of the key equipment, which is used to melt solid sulfur into liquid sulfur for subsequent processes. However, in the traditional sulfur melting process, there are a series of technical and safety issues, especially in the feeding link.

[0003] Traditional feeding devices usually use ordinary feed shuttle troughs, which have many disadvantages in solid sulfur melting production. First, since the acidic gas in the gas phase space of the sulfur melting tank is easily enriched in the feed shuttle trough, which happens to be the low temperature point of the sulfur melting tank, the shuttle trough is very susceptible to corrosion. This corrosion not only shortens the service life of the equipment, but may also cause production stoppage losses, and replacing the shuttle trough is also time-consuming and labor-intensive.

[0004] Secondly, when solid sulfur enters the sulfur melting tank, liquid sulfur will splash, and the liquid sulfur will continue to adhere to the feed shuttle tank. Over time, the attached sulfur will gradually accumulate and block the feed port, eventually leading to a tank overflow accident. In order to avoid this situation, it is necessary to manually clean up the attached sulfur regularly, which not only increases labor costs, but also affects production efficiency.

[0005] In addition, there are safety hazards when manually cleaning the solid sulfur attached to the discharge port. Chunks of solid sulfur falling into the sulfur melting tank will cause liquid high-temperature sulfur to splash, which may injure operators. At the same time, the molten sulfur vapor escaping from the discharge port will also increase the risk of occupational hazards to personnel. Utility Model Content

[0006] The utility model aims to provide a sulfur feeding device which can avoid material blockage, so as to solve the problems in the above background technology that the shuttle slot is very susceptible to corrosion, the feed port is blocked, and the high-temperature sulfur splashes.

[0007] To achieve the above-mentioned purpose, the utility model provides a sulfur feeding device that avoids blockage, including a feeding assembly, wherein the feeding assembly is installed at the top feeding end of the sulfur melting tank, the top of the feeding assembly is connected to a conveyor belt, a hopper is installed above the bottom end of the conveyor belt, the feeding assembly includes a feeding pipeline, a steam jacketed pipe is installed at the bottom end of the feeding pipeline, a steam inlet pipe is connected to an upper side of the steam jacketed pipe, and a condensate outlet pipe is connected to a lower side of the steam inlet pipe.

[0008] Preferably, a manual valve is installed on the steam inlet pipe.

[0009] Preferably, a Y-shaped filter is installed on the condensate outlet pipe, and an automatic drain valve is installed on a rod near the rear end of the Y-shaped filter on the condensate outlet pipe.

[0010] Preferably, the steam jacketed pipe is a tubular structure with openings at the top and the bottom, and the side wall is a double-layer structure, including an interlayer arranged between an outer plate and an inner plate.

[0011] Preferably, a steam inlet is provided on one side of the upper portion of the outer plate, and the steam inlet is connected to the steam inlet pipe; a condensate outlet is provided on one side of the lower portion of the outer plate, and the condensate outlet is connected to the condensate outlet pipe.

[0012] Preferably, a pad is installed on the upper outer wall of the inner plate near the steam inlet.

[0013] Preferably, the steam inlet pipe is a DN20 seamless pipe, the outer end of which is connected to 0.6 MPa saturated steam, and the steam jacket pipe is made of 6 mm thick 316L stainless steel plate by welding.

[0014] Preferably, the outer end of the condensate outlet pipe is connected to a condensate recovery tank.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the sulfur feeding device that avoids blockage, by introducing a steam jacketed pipe into the feeding assembly and using steam heating to maintain the temperature of the feeding pipeline, the acid gas is effectively prevented from being enriched at low temperature points, thereby significantly reducing corrosion, extending the service life of the equipment, and reducing the loss of production stoppage and equipment replacement costs caused by corrosion. The design of the steam jacketed pipe allows the feed port and the feed pipeline to maintain a certain temperature, ensuring that the attached solid and liquid sulfur can be melted in time, effectively avoiding the accumulation and blockage of sulfur at the feed port, thereby preventing the occurrence of overflow accidents and improving production efficiency. The device reduces the need for manual cleaning of attached sulfur, thereby reducing the risk of liquid sulfur splashing and molten sulfur vapor escaping due to manual cleaning, significantly improving the safety of operators and reducing occupational hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the use of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the feeding assembly in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the steam jacketed pipe in the utility model.

[0020] The meaning of each number in the figure is:

[0021] 1. Molten sulfur tank; 2. Feed assembly; 21. Steam jacket pipe; 211. Outer plate; 212. Inner plate; 213. Interlayer; 214. Pad; 215. Steam inlet; 216. Condensate outlet; 22. Feed pipeline; 23. Steam inlet pipe; 231. Manual valve; 24. Condensate outlet pipe; 241. Automatic drain valve; 25. Y-type filter; 3. Conveyor belt; 4. Hopper. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides a sulfur feeding device which can avoid material blockage, such as Figure 1-Figure 3 As shown, it includes a feeding component 2, which is installed at the top feeding end of the sulfur melting tank 1. The top of the feeding component 2 is connected to a conveyor belt 3, and a hopper 4 is installed above the bottom end of the conveyor belt 3 to facilitate the addition of materials. The feeding component 2 includes a feeding pipeline 22, and a steam jacketed pipe 21 is installed at the bottom end of the feeding pipeline 22. A steam inlet pipe 23 is connected to the upper side of the steam jacketed pipe 21 to facilitate the entry of steam, and a condensate outlet pipe 24 is connected to the lower side of the steam inlet pipe 23 to facilitate the discharge of condensate. The temperature of the inner and outer walls of the steam jacketed pipe 21 is always maintained at the melting point of solid sulfur. After the solid sulfur and the splashed liquid sulfur are attached to the bottom discharge port of the steam jacketed pipe 21, the heated steam jacketed pipe 21 is immediately melted to avoid the solidified sulfur after attachment to cause blockage at the discharge port, and to avoid the risk of liquid sulfur splashing and injuring people due to the cleaned sulfur falling into the sulfur melting tank.

[0024] In this embodiment, a manual valve 231 is installed on the steam inlet pipe 23 .

[0025] Specifically, a Y-shaped filter 25 is installed on the condensate outlet pipe 24, and an automatic drain valve 241 is installed on the condensate outlet pipe 24 near the rear end of the Y-shaped filter 25 to timely discharge the condensed steam condensate after heat exchange. The Y-shaped filter 25 can prevent impurities from clogging the drain valve and affecting the operation of the subsequent system. The condensate after heat exchange and cooling is discharged in time through the automatic drain valve 241 and recovered into the condensate recovery tank, so as to always keep the temperature in the jacket at 140-150°C, and ensure that the temperature of the inner and outer walls of the unloading device always maintains the sulfur melting point of 120°C-130°C.

[0026] Furthermore, the steam jacketed pipe 21 is a tubular structure with openings at the top and bottom, and the side wall is a double-layer structure, including an outer plate 211 and an inner plate 212 with an interlayer 213 arranged between them.

[0027] Furthermore, a steam inlet 215 is provided on one side of the upper portion of the outer plate 211 , and the steam inlet 215 is connected to the steam inlet pipe 23 . A condensate outlet 216 is provided on one side of the lower portion of the outer plate 211 , and the condensate outlet 216 is connected to the condensate outlet pipe 24 .

[0028] Furthermore, a pad 214 is installed on the upper outer wall of the inner plate 212 near the steam inlet 215 to prevent the steam cold belt water from impacting the inner plate 212.

[0029] Furthermore, the steam inlet pipe 23 is made of DN20 seamless pipe, the outer end of which is connected to 0.6 MPa saturated steam, and the steam jacket pipe 21 is made of 6 mm thick 316L stainless steel plate by welding.

[0030] Furthermore, the outer end of the condensate outlet pipe 24 is connected to a condensate recovery tank to facilitate condensate recovery.

[0031] When the sulfur feeding device for preventing material blockage of the utility model is used, the sulfur material is first added to the conveyor belt 3 through the hopper 4, transported to the top of the feeding assembly 2 by the conveyor belt 3, and then flows downward through the conveying pipe 22. At the bottom of the conveying pipe 22, the material passes through the specially designed steam jacket pipe 21.

[0032] The steam jacket 21 is a double-layer tubular device, wherein an interlayer 213 is formed between an outer plate 211 and an inner plate 212, and the interlayer is used to pass steam. The steam enters the interlayer 213 through the steam inlet pipe 23 and the steam inlet 215, so that the inner wall temperature of the steam jacket 21 is always maintained above the melting point of solid sulfur.

[0033] When solid sulfur or splashed liquid sulfur adheres to the discharge port of the steam jacket pipe 21, the sulfur will be quickly melted due to the high temperature of the steam jacket pipe 21, thereby avoiding the blockage of sulfur at the discharge port. At the same time, this also eliminates the risk of liquid sulfur splashing and injuring people due to the cleaned sulfur falling into the sulfur melting tank.

[0034] During the steam heating process, part of the steam will condense into water. These condensed water and possible impurities will be discharged through the condensate outlet 216 and the condensate outlet pipe 24. During the discharge process, the Y-shaped filter 25 will filter out impurities to prevent them from clogging the automatic steam trap 241 and affecting the normal operation of the system. The automatic steam trap 241 will automatically discharge the condensed water, keeping the temperature in the jacket stable at 140-150°C, thereby ensuring that the temperature of the inner and outer walls of the feeding device always maintains the sulfur melting point of 120°C-130°C. Finally, the condensed water will be recycled into the condensate recovery tank to achieve resource reuse.

[0035] Finally, it should be noted that the electronic components in the conveyor belt 3 in this embodiment are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components are connected by wires respectively, and the specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A sulfur feeding device for avoiding material blockage, comprising a feeding assembly (2), characterized in that: The feed assembly (2) is installed at the top feed end of the sulfur melting tank (1), the top of the feed assembly (2) is connected to a conveyor belt (3), a hopper (4) is installed above the bottom end of the conveyor belt (3), the feed assembly (2) includes a feed pipeline (22), a steam jacketed pipe (21) is installed at the bottom end of the feed pipeline (22), the upper side of the steam jacketed pipe (21) is connected to a steam inlet pipe (23), and the lower side of the steam inlet pipe (23) is connected to a condensate outlet pipe (24).

2. The sulfur feeding device for avoiding material blockage according to claim 1, characterized in that: A manual valve (231) is installed on the steam inlet pipe (23).

3. The sulfur feeding device for avoiding material blockage according to claim 1, characterized in that: A Y-shaped filter (25) is installed on the condensate outlet pipe (24), and an automatic drain valve (241) is installed on a rod at the rear end of the condensate outlet pipe (24) close to the Y-shaped filter (25).

4. The sulfur feeding device for avoiding material blockage according to claim 3 is characterized in that: The steam jacketed pipe (21) is a tubular structure with openings at the top and bottom, and the side wall is a double-layer structure, including an outer plate (211) and an inner plate (212) with an interlayer (213) arranged between them.

5. The sulfur feeding device for avoiding material blockage according to claim 4 is characterized in that: A steam inlet (215) is provided on one side of the upper portion of the outer plate (211), and the steam inlet (215) is connected to the steam inlet pipe (23); a condensate outlet (216) is provided on one side of the lower portion of the outer plate (211), and the condensate outlet (216) is connected to the condensate outlet pipe (24).

6. The sulfur feeding device for avoiding material blockage according to claim 5, characterized in that: A pad (214) is installed on the upper outer wall of the inner plate (212) near the steam inlet (215).

7. The sulfur feeding device for avoiding material blockage according to claim 1, characterized in that: The steam inlet pipe (23) is made of a DN20 seamless pipe, with 0.6 MPa saturated steam connected to the outer end. The steam jacket pipe (21) is made of 6 mm thick 316L stainless steel plate by welding.

8. The sulfur feeding device for avoiding material blockage according to claim 1, characterized in that: The outer end of the condensate outlet pipe (24) is externally connected to a condensate recovery tank.

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