Elemental sulfur condensing device

Abstract

The utility model relates to a kind of single sulfur condensing device in material preparation technical field, including the sulfur vapor receiving component, droplet formation component, droplet collection solidification component and sulfur vapor cooling component connected in sequence, the temperature of the sulfur vapor receiving component is controllable, and tail gas outlet is equipped on the sulfur vapor cooling component.The utility model is with the concept of droplet condensing vapor state single sulfur, makes sulfur vapor expelled from the preparation body of sulfur-containing material in single sulfur condensing device first liquefaction then solidification collection, effectively avoids the condensation blockage of sulfur vapor in tail gas outlet part.

Description

Technical Field

[0001] This utility model belongs to the field of materials preparation technology, specifically relating to a device for condensing elemental sulfur. Background Technology

[0002] Elemental sulfur plays a crucial role in the preparation of new energy materials. As a sulfur-containing active material in lithium-sulfur battery cathode materials, the elemental sulfur content is a key factor affecting material performance. In the material preparation process, muffle furnaces or tube furnaces (common material preparation containers) are mainly used to control temperature and pressure, utilizing the sublimation of elemental sulfur to remove excess sulfur from the material. However, elemental sulfur readily condenses upon cooling, accumulating around the outlet and causing blockages, potentially leading to system rupture due to excessive pressure. Furthermore, sulfur and sulfur vapor are harmful to the environment and cannot be directly emitted into the atmosphere; effectively collecting sublimated sulfur vapor has become a technical challenge. Therefore, a method for condensing elemental sulfur is urgently needed to solve these technical problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a sulfur condensation device, which includes a sulfur vapor receiving component, a droplet forming component, a droplet collecting and solidifying component, and a sulfur vapor cooling component that are arranged in sequence. The sulfur vapor receiving component has a controllable temperature, and the sulfur vapor cooling component is provided with a tail gas outlet.

[0004] Preferably, the sulfur vapor receiving component includes a gas guide pipe, the outer wall of which is provided with a heat insulation sleeve, one end of which is connected to a steam source, and the other end of which is connected to a droplet forming component.

[0005] Preferably, the droplet forming component is a liquefaction nozzle, which extends into the droplet collecting and solidifying component.

[0006] Preferably, the droplet collection and solidification component is a gas-solid partition, which is a cylinder with openings at the top and bottom, and the cylinder is located inside the sulfur vapor cooling component.

[0007] Preferably, the sulfur vapor cooling component is a collection tank, the inlet of which is connected to the droplet collection and solidification component via a quick-connect coupling, and the exhaust gas outlet is located at the top of the collection tank.

[0008] Preferably, the outer wall of the collection tank is fitted with a spray head, which sprays coolant (cold water) onto the outer wall of the collection tank, allowing the small amount of gas inside the collection tank to continue to condense. This reduces the sulfur content of the gas discharged from the exhaust outlet.

[0009] This invention also includes other components that enable the normal operation of a single-element sulfur condensation device, such as control components for the insulation jacket and control components for the liquefaction nozzle, which are all conventional technologies in the field. Furthermore, devices or components not specified in this invention, such as quick-connect fittings, insulation jackets, and liquefaction nozzles, all employ conventional technologies and equipment in the field.

[0010] Working Principle: The sulfur-containing material preparation device (or elemental sulfur purification device) generates hot sulfur vapor under the drive of high heat and inert gas. The hot sulfur vapor travels through a sealed gas guide pipe to a liquefaction nozzle where it is liquefied. A temperature control / insulation sleeve on the outside of the gas guide pipe maintains the hot sulfur vapor at a certain high temperature, above the melting point of elemental sulfur (116℃). The hot sulfur vapor is liquefied by the liquefaction nozzle, forming a liquid seal. Excess liquid drips onto the droplet collection and solidification component (cylinder) or the bottom of the collection tank and solidifies and condenses. A small amount of unliquefied sulfur vapor enters the collection tank, where cooling liquid (cold water) is sprayed onto the outer wall. After cooling, the sulfur vapor further settles and adsorbs. The remaining gas phase contains very low levels of elemental sulfur, making it unlikely to cause blockage due to sulfur accumulation in the pipeline. The remaining gas is discharged from the tail gas outlet and can be connected to a specific tail gas treatment device for pre-emission treatment.

[0011] This invention has the following advantages: by using the concept of droplet condensation of gaseous elemental sulfur, the sulfur vapor expelled from the sulfur-containing material preparation body is first liquefied and then solidified and collected in the elemental sulfur condensation device, which effectively avoids the condensation and blockage of sulfur vapor at the tail gas outlet. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of a single-element sulfur condensation device according to an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of a single-element sulfur condensation device in an embodiment of this utility model.

[0015] In the diagram: 1. Collection tank; 2. Gas guide pipe; 3. Cylinder; 4. Quick connector; 5. Liquefaction nozzle; 6. Exhaust gas outlet; 7. Insulation jacket. Detailed Implementation

[0016] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0017] Example

[0018] like Figure 1-2 As shown, this utility model provides a condensation device for elemental sulfur, including a gas guide pipe, a liquefaction nozzle, a gas-solid baffle, and a collection tank. The gas guide pipe is equipped with an insulation sleeve. One end of the gas guide pipe is connected to a steam source, and the other end is connected to the liquefaction nozzle. The liquid outlet of the liquefaction nozzle 5 cooperates with the gas-solid baffle, which is a cylindrical tube 3 with openings at the top and bottom (the liquid outlet of the liquefaction nozzle 5 extends into the tube). The cylindrical tube 3 is located inside the collection tank. The inlet of the collection tank 1 is connected to the liquefaction nozzle via a quick-connect coupling 4. The quick-connect coupling is a KF quick-connect coupling (model: KF100). The upper part of the collection tank 1 has a tail gas outlet 6. A spray head (not shown in the attached figure, representing prior art, its structure will not be described further) is fitted to the outer wall of the collection tank 1. The spray head can spray cooling liquid (cold water) onto the outer wall of the collection tank 1, allowing the small amount of gas inside the collection tank 1 to continue condensing, reducing the sulfur content of the gas discharged from the tail gas outlet 6.

[0019] The connection between the gas guide pipe and the steam source can be a flange connection, a KF quick-connect connection, or an internal / external threaded connection, and it is a sealed connection. The insulation sleeve is a temperature-controlled sleeve (model: KWT500), and the liquefaction nozzle is a temperature-controlled conical nozzle (model: M20T15-5) to maintain its temperature above the melting point of elemental sulfur, ensuring that elemental sulfur remains in a liquid state. Simultaneously, the gas flow rate of sulfur vapor is controlled so that a single droplet of liquid sulfur is always suspended at the conical nozzle, preventing sulfur vapor from directly entering the collection tank. The collection tank is a sealed stainless steel tank, which can be continuously cooled by cold water spraying, further condensing and settling the sulfur vapor in the gas phase. The exhaust gas outlet can be connected to the exhaust gas treatment unit via a KF quick-connect fitting and a pressure-resistant corrugated pipe, achieving a flexible connection without any drop.

[0020] This embodiment is mainly used for the condensation, solidification, and recovery of excess sulfur vapor. It is particularly effective for collecting and recovering excess elemental sulfur during the removal process in the preparation of sulfur-containing materials. During operation, hot sulfur vapor reaches the liquefaction nozzle 5 through a sealed gas guide pipe 2 and is liquefied. The gas guide pipe 2 utilizes an outer insulation sleeve 7 to maintain the hot sulfur vapor inside at a certain high temperature, controlled above the melting point of elemental sulfur (116°C). The hot sulfur vapor is transformed into a liquid form through the liquefaction nozzle, forming a liquid seal. The liquefied sulfur droplets first remain on the gas-solid baffle plate before falling (or flowing) to the bottom of the collection tank (solidification and condensation zone) and condensing into solid elemental sulfur. A small amount of unliquefied sulfur vapor enters the collection tank 1, where a spray nozzle sprays cooling liquid (cold water) onto the outer wall of the collection tank 1. After cooling, the sulfur vapor further settles and adsorbs. The remaining gas phase contains very low levels of elemental sulfur, making it unlikely to cause blockage due to sulfur accumulation in the pipeline. The remaining gas is discharged from exhaust outlet 6 and can be connected to a specific exhaust gas treatment device for pretreatment before emission.

[0021] The temperature control sleeve, liquefaction nozzle, quick-connect coupling, etc., in the above embodiments are all commonly used devices in the art and are existing technologies. This application does not improve upon them, but only utilizes their existing functions; for their specific structure and principle, please refer to the product manual or existing technical documents, which are all existing technologies.

[0022] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for condensing elemental sulfur, characterized in that: It includes a sulfur vapor receiving component, a droplet forming component, a droplet collecting and solidifying component, and a sulfur vapor cooling component that cooperate in sequence. The sulfur vapor receiving component has a controllable temperature, and the sulfur vapor cooling component is provided with an exhaust gas outlet.

2. The elemental sulfur condensation device according to claim 1, characterized in that: The sulfur vapor receiving component includes a gas guide pipe with an insulation sleeve on its outer wall. One end of the gas guide pipe is connected to a steam source, and the other end is connected to a droplet forming component.

3. The elemental sulfur condensation device according to claim 2, characterized in that: The droplet forming component is a liquefaction nozzle, which extends into the droplet collecting and solidifying component.

4. The elemental sulfur condensation device according to claim 1, characterized in that: The droplet collection and solidification component is a gas-solid partition, which is a cylinder with openings at the top and bottom, and the cylinder is located inside the sulfur vapor cooling component.

5. A condensation device for elemental sulfur according to any one of claims 1-4, characterized in that: The sulfur vapor cooling component is a collection tank. The inlet of the collection tank is connected to the droplet collection and solidification component via a quick-connect coupling. The exhaust gas outlet is located at the top of the collection tank.

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