A recovery and treatment device for distillation residues in a comprehensive utilization process of by-product sulfur

Abstract

The utility model provides a kind of recovery treatment device of distillation residue in by-product sulphur comprehensive utilization process, belong to sulphur recovery processing technical field, including the cooling kettle for containing cooling water, the upper portion of cooling kettle is equipped with feed pipe, residue enters cooling kettle by feed pipe, and mixed with cooling water in cooling kettle to cool solidification, and solidified residue can be discharged by the discharge pipe of cooling kettle bottom;The utility model can be mixed by residue and water, to realize the rapid cooling of residue, to improve residue solidification quality and cooling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sulfur recovery and treatment technology, specifically to a device for recovering and treating distillation residues during the comprehensive utilization of by-product sulfur. Background Technology

[0002] In petroleum refining, natural gas desulfurization, and chemical production, the comprehensive utilization of by-product sulfur is a key link in resource-based treatment. Sulfur is often purified and sublimated through distillation, a process that separates sulfur from other impurities at high temperatures to produce high-purity sulfur products. During distillation, in addition to the main products, a large amount of high-temperature liquid sulfur residue (mainly containing sulfur, organic matter, and trace impurities) is generated. This residue must be cooled and solidified before further disposal or recycling.

[0003] Currently, the industry generally uses natural cooling to treat sulfur distillation residue: the high-temperature residue is directly poured into an open-air iron drum or a simple cooling kettle, and it is slowly cooled and solidified by relying on the ambient temperature. However, this method has extremely low cooling efficiency and poor solidification quality. The blocky solid formed by natural cooling is difficult to break and is prone to containing uncondensed impurities, which increases the difficulty of subsequent processing. Utility Model Content

[0004] In view of this, the present invention provides a device for recovering and treating distillation residue in the process of comprehensive utilization of by-product sulfur. The device can achieve rapid cooling of the residue by mixing it with water, thereby improving the solidification quality and cooling efficiency of the residue.

[0005] To address the aforementioned technical problems, this utility model provides a device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur. The device includes a cooling vessel for containing cooling water. A water inlet pipe is connected to one side of the upper part of the cooling vessel, through which cooling water is added. A feed pipe is connected to the other side of the upper part of the cooling vessel, and a regulating valve is installed on the feed pipe to adjust the flow rate of the residue within it. By adjusting the flow rate, the residue discharged from the distillation equipment slowly enters the cooling vessel through the feed pipe. Through the mixing of the residue and cooling water, the residue is instantly cooled and solidified into fine solid particles. The cooled residue mixes with water to form a solid-liquid mixture. The solidified residue can be discharged through a discharge pipe at the bottom of the cooling vessel for subsequent recycling. Compared to existing natural cooling methods, the design of the cooling vessel, which mixes the residue with cooling water, achieves rapid cooling of the residue, significantly improving the solidification quality and cooling efficiency.

[0006] The cooling vessel is equipped with a stirring mechanism, which is used to stir the residue and cooling water in the cooling vessel to mix them quickly. By increasing the fluidity of the residue in the cooling water, the residue can be cooled and solidified more quickly.

[0007] The stirring mechanism includes a stirring rod and a drive motor. The stirring rod is installed inside the cooling tank, and the body of the drive motor is fixed on the top of the cooling tank. The drive motor drives the stirring rod to rotate, thereby stirring the residue and cooling water to achieve rapid mixing of the two.

[0008] It also includes a filtration tank located below the discharge pipe. The filtration tank is used to collect the solid-liquid mixture discharged from the discharge pipe. The solid-liquid mixture is separated by the filtration tank. Cooling water is drawn to the bottom of the filtration tank by a vacuum pump, while the separated solid residue is trapped in the filter bag of the filtration tank. The design of the filtration tank can quickly achieve solid-liquid separation.

[0009] It also includes a suction filter tank, which has a connecting pipe installed at the inlet of the suction filter tank. The end of the connecting pipe is connected to the outlet of the suction tank. The suction tank and the suction tank are connected through the connecting pipe. The vacuum pump of the suction filter tank draws water from the bottom of the suction tank into the suction filter tank through the connecting pipe, so that the cooled water is filtered and purified in the suction filter tank for subsequent use.

[0010] A water supply pipe is connected to the drain outlet at the bottom of the suction filter tank. The water supply pipe is connected to the water inlet pipe of the cooling tank, so that the filtered water can enter the cooling tank through the water supply pipe for continued use. This realizes water recycling, greatly improves the utilization rate of water resources, and prevents water waste.

[0011] A jacket is installed on the outer wall of the cooling vessel. An inlet pipe and a drain pipe are connected to both sides of the outer wall of the jacket. The inlet pipe is located below the outer wall of the jacket, while the drain pipe is located above the outer wall of the jacket. External cold water is transported to the cavity through the inlet pipe. The cold water inside the cavity exchanges heat with the hot water in the cooling vessel through heat conduction, thereby cooling the hot water in the cooling vessel. The cooled water can then continue to exchange heat and cool the residue. The water in the cavity is discharged through the drain pipe. Because cold water is continuously supplied through the inlet pipe and water is continuously discharged through the drain pipe, the water in the cavity can circulate continuously, thereby improving the heat exchange efficiency.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Achieve efficient cooling and solidification of residues: Through direct heat exchange between the cooling water in the cooling vessel and the high-temperature residues, the residues are solidified into fine particles, significantly shortening the cooling time and solving the problem of low efficiency of natural cooling. At the same time, it avoids the formation of blocky solids, improves the uniformity of solidification and the convenience of subsequent processing.

[0014] 2. Enhance the stability of the cooling process. The stirring mechanism forcibly breaks up the clumps of residue and promotes full mixing of solid and liquid, ensuring uniform cooling of residue particles and solving the quality defect of uncondensed impurities trapped inside.

[0015] 3. Closed-loop recycling of water resources: The suction tank and the suction filter work together to complete solid-liquid separation and filtrate purification. The filtered water is then returned to the cooling kettle in a closed loop through the water supply pipe, replacing the traditional single-use water mode and achieving zero waste of cooling medium.

[0016] 4. The dual heat exchange system ensures sustainability. The jacket design uses continuously circulating cold water to perform secondary heat exchange and cooling of the circulating water in the cooling vessel, maintaining a stable operating temperature of the cooling water. At the same time, the water outlet of the jacket can be connected to an external cooling tower to realize waste heat recovery, forming a full-process thermal energy resource utilization. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main system of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 100, cooling vessel; 101, feed pipe; 102, discharge pipe; 200, drive motor; 201, stirring rod; 300, suction filter tank; 400, suction filter container; 401, connecting pipe; 500, water supply pipe; 600, jacket; 601, cavity; 602, water inlet pipe; 603, drain pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0020] A device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur, such as... Figure 1The diagram shows a cooling vessel 100 for containing cooling water. A water inlet pipe 602 is connected to one upper side of the cooling vessel 100, through which cooling water is added. A feed pipe 101 is connected to the other upper side of the cooling vessel 100. The feed pipe 101 can be connected to the outlet pipe of an external distillation device. A regulating valve is installed on the feed pipe 101 to regulate the flow rate of the residue within it. By regulating the flow rate, the residue discharged from the distillation device slowly enters the cooling vessel 100 through the feed pipe 101, and the residue drips onto the cooling water. In this process, the residue is mixed with cooling water, causing it to cool down instantly and solidify into fine solid particles. The cooled residue mixes with water to form a solid-liquid mixture. Since a discharge pipe 102 is installed at the bottom of the cooling vessel 100 and is equipped with a switch valve, the solidified residue can be discharged through the discharge pipe 102 at the bottom of the cooling vessel 100 for subsequent recycling. Compared with existing natural cooling, the design of the cooling vessel 100 allows the residue to mix with cooling water, achieving rapid cooling of the residue and significantly improving the solidification quality and cooling efficiency of the residue.

[0021] Specifically, the cooling vessel 100 is equipped with a stirring mechanism, which is used to stir the residue and cooling water in the cooling vessel 100 so that the two are quickly mixed. By increasing the fluidity of the residue in the cooling water, the residue can be cooled and solidified more quickly and evenly.

[0022] Furthermore, the stirring mechanism includes a stirring rod 201 and a drive motor 200. The stirring rod 201 is rotatably installed inside the cooling tank 100. The body of the drive motor 200 is fixedly installed on the top of the cooling tank 100, and its rotating shaft is connected to the end of the stirring rod 201, so that the drive motor 200 drives the stirring rod 201 to rotate, thereby stirring the residue and cooling water to achieve rapid mixing of the two.

[0023] according to Figure 1 As shown, it also includes a filtration tank 300, which is placed below the discharge pipe 102 to collect the solid-liquid mixture discharged from the discharge pipe 102. The filtration tank 300 separates the solid and liquid mixture, and the cooling water is drawn to the bottom of the filtration tank 300 by a vacuum pump. The separated solid residue is trapped in the filter bag of the filtration tank 300. The design of the filtration tank 300 can quickly achieve solid-liquid separation, which facilitates the subsequent centralized treatment of the residue.

[0024] Specifically, it also includes a suction filter tank 400, with a connecting pipe 401 installed at the feed inlet of the suction filter tank 400. The end of the connecting pipe 401 is connected to the outlet of the suction tank 300, and the suction tank 400 and the suction tank 400 are connected through the connecting pipe 401.

[0025] When the vacuum pump of the suction tank 400 is working, the air inside the suction tank 400 is drawn away, forming a negative pressure (lower than atmospheric pressure). At this time, the water at the bottom of the suction tank 300 is forced into the suction tank 400 through the connecting pipe 401 under the action of atmospheric pressure difference, so that the cooled water is filtered and purified in the suction tank 400 for subsequent use.

[0026] according to Figure 1 As shown, a water supply pipe 500 is connected to the drain outlet at the bottom of the suction filter tank 400. The water supply pipe 500 is connected to the water inlet pipe 602 of the cooling vessel 100, so that the filtered water can enter the cooling vessel 100 through the water supply pipe 500 for continued use, thereby realizing water recycling, greatly improving the utilization rate of water resources and preventing water waste.

[0027] Specifically, since the cooling water and residue are mixed for cooling, which involves heat exchange, the water remains at a high temperature after the heat exchange. A jacket 600 is installed on the outer wall of the cooling vessel 100, and a cavity 601 is formed inside the jacket 600. An inlet pipe 602 and a drain pipe 603 are connected to both sides of the outer wall of the jacket 600. The inlet pipe 602 is located below the outer wall of the jacket 600, while the drain pipe 603 is located above the outer wall of the jacket 600. External cold water is transported to the cavity 601 through the inlet pipe 602 until the cavity 601 is completely filled. The internal cold water exchanges heat with the hot water in the cooling vessel 100 through heat conduction to cool the hot water in the cooling vessel 100. The cooled water can then continue to exchange heat and cool the residue. The water in the cavity 601 is discharged through the drain pipe 603. Since the inlet pipe 602 continuously supplies cold water and the drain pipe 603 continuously discharges water, the water in the cavity 601 can continuously circulate, thereby improving the heat exchange efficiency. The water discharged from the drain pipe 603 will be cooled by the external cooling tower for subsequent heat exchange, thus realizing water recycling and further improving the water resource utilization rate.

[0028] How to use this utility model:

[0029] First, it should be clarified that this utility model is mainly used for the rapid cooling and solidification of the residual liquid produced after sulfur distillation and sublimation for subsequent recycling. It should be noted that the suction filter tank 400 and the vacuum filtration tank 300 are common devices used in the prior art for solid-liquid separation and vacuum filtration. Since their internal structure is not the main technical feature or innovation of this utility model, their models are not limited here, nor are their internal structures described in detail; only their general working principles and connection structures are summarized. The main focus is on the detailed explanation of the usage method and internal structure of the cooling vessel 100.

[0030] Before cooling the sulfur residue, cooling water is supplied from the inlet pipe 602 of the cooling vessel 100. Since the amount of residue produced during sulfur distillation and sublimation is small and the temperature is too high, a large amount of cooling water can be added to the cooling vessel 100. Then, the water supply pipe 500 is connected to the inlet pipe 602, and the feed pipe 101 is connected to the outlet pipe of the external distillation equipment. By adjusting the regulating valve on the feed pipe 101, the flow rate of the residue liquid is controlled. At this time, the regulating valve can be controlled to slowly transport the residue from the feed pipe 101 into the cooling vessel 100, so that... The residue drips into the cooling water, where it cools and solidifies into solid particles. At this point, the drive motor 200 rotates the stirring rod 201, causing it to rapidly mix the solid residue and water, thus improving the cooling efficiency and effect. Once all the residue has been transferred to the cooling tank 100 and solidified, a solid-liquid mixture is formed. The cooling tank 100 then opens the valve on the discharge pipe 102, allowing the solid-liquid mixture to flow into the filtration tank 300. The filtration tank 300 then separates the solid and liquid components. The residue is trapped in the filter bag of the filtration tank 300, while the cooled water after heat exchange remains at the bottom of the filtration tank 300. Then, the vacuum pump of the suction tank 400 is started, allowing the water at the bottom of the filtration tank 300 to enter the suction tank 400 through the connecting pipe 401. The vacuum filtration of the suction tank 400 filters and purifies the cooling water. The filtered water enters the water supply pipe 500 through the drain outlet, allowing the cooling water to be transported to the cooling vessel 100. Subsequently, external cold water is supplied through the water inlet pipe 602 outside the jacket 600, filling the jacket 600. The cavity 601 cools the water in the cooling vessel 100 through heat conduction, allowing the water in the cooling vessel 100 to be recycled. The water in the cavity 601 of the jacket 600 is discharged through the drain pipe 603 and cooled by the cooling tower for future use. After the cooling process is completed, the solid residue can be removed from the filter bag of the filtration tank 300 for subsequent recycling. By using the cooling vessel 100, the sulfur residue can be mixed with water to achieve rapid cooling of the residue, thereby improving the solidification quality and cooling efficiency of the residue.

[0031] The above are preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur, characterized in that: It includes a cooling vessel (100) for containing cooling water. The upper part of the cooling vessel (100) is provided with a feed pipe (101). The residue enters the cooling vessel (100) through the feed pipe (101) and mixes with the cooling water in the cooling vessel (100) to cool and solidify. The solidified residue can be discharged through the discharge pipe (102) at the bottom of the cooling vessel (100).

2. The device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur as described in claim 1, characterized in that: The cooling vessel (100) is equipped with a stirring mechanism, which is used to stir the residue and cooling water in the cooling vessel (100).

3. The device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur as described in claim 2, characterized in that: The stirring mechanism includes a stirring rod (201) and a drive motor (200). The stirring rod (201) is rotatably installed inside the cooling tank (100). The drive motor (200) is located on the top of the cooling tank (100) and drives the stirring rod (201) to rotate, thereby stirring the residue and cooling water to achieve rapid cooling.

4. The device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur as described in claim 1, characterized in that: It also includes a filtration tank (300) for receiving the solid-liquid mixture discharged from the discharge pipe (102), and the filtration tank (300) is capable of separating cooling water, and the solidified residue is trapped in the filter bag of the filtration tank (300).

5. The device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur as described in claim 4, characterized in that: It also includes a suction filter tank (400), which is connected to the inside of the suction tank (300) via a connecting pipe (401); The suction filter (400) can extract water from the suction tank (300) through the connecting pipe (401) and filter the water that is drawn in through the suction filter (400).

6. The device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur as described in claim 5, characterized in that: The drain outlet of the suction filter tank (400) is connected to a water supply pipe (500), which is connected to the inlet of the cooling vessel (100). The filtered water can pass through the water supply pipe (500) and enter the cooling vessel (100) for continued use.

7. The device for recovering and treating distillation residue during the comprehensive utilization of by-product sulfur as described in claim 6, characterized in that: The cooling vessel (100) is provided with a jacket (600) on its outer wall. A cavity (601) is provided inside the jacket (600). A water inlet pipe (602) and a drain pipe (603) are respectively connected to the two sides of the outer wall of the jacket (600). External cold water is transported to the cavity (601) through the water inlet pipe (602). The cold water exchanges heat with the water in the cooling vessel (100) through heat conduction. The water in the cavity (601) after heat exchange is discharged through the drain pipe (603).

Images