Closed turnover device for recycling sulfur mud
By designing a closed-loop recycling device, the problem of odor diffusion from sulfur sludge filter cake was solved, achieving safe and efficient recycling of sulfur sludge and environmental optimization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGYIN YONGXIN CHEM CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-21
AI Technical Summary
When existing equipment processes sulfur sludge filter cake generated during the production of dicyclohexyl disulfide, the sulfide odor is easily diffused, affecting the operating environment.
A closed transfer device including a docking device, a connecting device, and a stirring device was designed. The sulfur mud filter cake is transferred from the discharge area of the filter press to the stirring device through a sealed structure and a connecting channel. The sulfur mud filter cake is dissolved and stirred with a solvent to turn it into a liquid state. At the same time, a sealing strip and a sliding plate structure are used to prevent odor from escaping.
It effectively prevents the spread of sulfide odors, optimizes the operating environment, and improves the recovery efficiency and safety of sulfur sludge.
Smart Images

Figure CN224147217U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sulfur sludge recycling technology, and in particular to a closed turnover device for sulfur sludge recycling. Background Technology
[0002] Dicyclohexyl disulfide is an organosulfur compound composed of two cyclohexyl groups linked by a disulfide bond. It is a colorless or pale yellow liquid at room temperature with a pungent odor, insoluble in water but readily soluble in organic solvents. It is chemically reactive; the disulfide bond can undergo reduction cleavage to form thiols. It can also participate in oxidation reactions. Industrially, it is commonly used as a lubricant additive, a rubber vulcanization accelerator, and an intermediate in organic synthesis. Furthermore, in materials science, it is used for surface modification and the preparation of nanomaterials.
[0003] The production of dicyclohexyl disulfide generates sulfur sludge waste, which needs to be recovered, purified, and reused in subsequent processes. Therefore, a filter press is required in the production process. The material is fed into the filter press through the inlet, and after filtration, the sulfur sludge filter cake is discharged through the outlet. Although the existing equipment can effectively meet the aforementioned processing requirements, in actual operation, the strong sulfide odor of the sulfur sludge filter cake easily affects the surrounding operating environment, resulting in a harsh working environment. Utility Model Content
[0004] In view of the technical problems of the prior art, this utility model provides a closed turnover device for the recycling of sulfur mud.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A closed-loop recycling device for sulfur sludge includes: a docking device, a connecting device, and a stirring device; the docking device includes a docking hopper and a sealing structure; the docking hopper is fitted onto the discharge area of a filter press; the sealing structure is disposed between the docking hopper and the discharge area; the sealing structure is connected to the docking hopper; the sealing structure is fitted into the discharge area; the connecting device includes a connecting channel and a solvent channel; one end of the connecting channel is connected to the docking hopper, and the other end is connected to the stirring device; the solvent channel is connected to the connecting channel.
[0007] Furthermore, the sealing structure includes a sealing strip assembly and a connecting plate; the connecting plate surrounds the unloading area; the connecting plate is fixedly connected to the unloading area; the connecting plate has a receiving groove corresponding to the sealing strip assembly; the sealing strip assembly surrounds the unloading area; the sealing strip assembly extends into the receiving groove; the sealing strip assembly is connected to the docking hopper.
[0008] Furthermore, the sealing strip assembly includes sealing strips; the number of sealing strips is at least three; the sealing strips are arranged one by one from top to bottom; one end of the sealing strip is connected to the docking hopper, and the other end extends into the receiving groove.
[0009] Furthermore, the sealing structure also includes a sliding plate; one end of the sliding plate is connected to the sealing edge strip assembly; the other end of the sliding plate is provided with a slide rail; the slide rail is arranged in a vertical direction; the sliding plate is slidably connected to the docking hopper through the slide rail.
[0010] Furthermore, the docking device also includes a sealed structure; the sealed structure includes a sealed edge strip and an assembly plate; the sealed edge strip surrounds the unloading area; the sealed edge strip extends from the edge of the unloading area to the center of the unloading area; the assembly plate is fastened to the sealed edge strip; the assembly plate is provided with assembly bolts; the assembly plate is connected to the docking hopper through the assembly bolts.
[0011] Furthermore, the connecting device also includes spray pipes; the spray pipes are arranged in the connecting channel; there are multiple spray pipes; the spray pipes are connected to the solvent channel; and the spray pipes are equipped with nozzles.
[0012] Furthermore, the stirring device includes a stirring tank, a power motor, and a stirring rod; the stirring tank is connected to a connecting channel; the stirring rod extends into the stirring tank; and the stirring rod is connected to the output end of the power motor. Attached Figure Description
[0013] Figure 1 Overall structure diagram.
[0014] Figure 2 Exploded view of the docking device.
[0015] Figure 3 Internal structure diagram of the connecting device.
[0016] Figure 4 Internal structure diagram of the stirring device.
[0017] Figure 5 : Actual assembly drawing of the stirring device.
[0018] Figure 6 : Actual connection diagram of the hopper and filter press.
[0019] In the diagram: 1. Docking device; 11. Docking hopper; 12. Sealing structure; 121. Sealing strip assembly; 122. Connecting plate; 1211. Sealing strip; 123. Sliding plate; 13. Sealed structure; 131. Sealing strip; 132. Assembly plate; 2. Connecting device; 21. Connecting channel; 22. Solvent channel; 23. Spraying pipe; 3. Stirring device; 31. Stirring tank; 32. Power motor; 33. Stirring rod. Detailed Implementation
[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0021] A closed-loop recycling device for sulfur sludge includes: a docking device 1, a connecting device 2, and a stirring device 3. The docking device 1 includes a docking hopper 11 and a sealing structure 12. The docking hopper 11 is fitted onto the discharge area of a filter press. The sealing structure 12 is disposed between the docking hopper 11 and the discharge area; the sealing structure 12 is connected to the docking hopper 11 and fits snugly against the discharge area. The connecting device 2 includes a connecting channel 21 and a solvent channel 22. One end of the connecting channel 21 is connected to the docking hopper 11, and the other end is connected to the stirring device 3. The solvent channel 22 is connected to the connecting channel 21.
[0022] In practical applications, the sulfur sludge filter cake is discharged from the unloading area of the filter press. After the filter cake is discharged from the unloading area, it falls into the docking hopper 11. Subsequently, the filter cake will slide down into the bottom of the docking hopper 11 under the action of gravity and enter the connecting channel 21. Solvent for dissolving the sulfur sludge filter cake is introduced into the solvent channel 22, and the sulfur sludge filter cake will slide down into the stirring device 3 under the flushing action of the solvent. The stirring device 3 thoroughly stirs the sulfur sludge filter cake and solvent, converting it into the liquid state required for subsequent production. After stirring is completed, it is pumped out of the stirring device 3 by a corresponding pump, and then enters the subsequent recovery device. In the aforementioned process, the sealing structure 12 is set between the docking hopper 11 and the unloading area of the filter press. The sealing structure 12 can effectively prevent the leakage of sulfur ether odors from the sulfur sludge filter cake, thereby optimizing the working environment. Preferably, the connection between the docking device 1, the connecting device 2, and the stirring device 3 is integrally welded to prevent odor leakage. Preferably, the actual assembly relationship between the docking hopper 11 and the filter press is as shown in the attached figure. Figure 6 As shown.
[0023] The sealing structure 12 includes a sealing strip assembly 121 and a connecting plate 122. The connecting plate 122 surrounds the unloading area and is fixedly connected to the unloading area. A receiving groove corresponding to the sealing strip assembly 121 is provided on the connecting plate 122. The sealing strip assembly 121 surrounds the unloading area and extends into the receiving groove. The sealing strip assembly 121 is connected to the docking hopper 11. The sealing strip assembly 121 includes sealing strips 1211. The number of sealing strips 1211 is at least three. The sealing strips 1211 are arranged sequentially from top to bottom. One end of each sealing strip 1211 is connected to the docking hopper 11, and the other end extends into the receiving groove.
[0024] Thus, the sealing strip assembly 121 is tightly fitted together with the discharge area of the filter press via the connecting plate 122. This minimizes the leakage of odors from the connection between the sealing strip assembly 121 and the connecting plate 122. Preferably, the sealing strip assembly 121 is made of rubber. The cross-section of the sealing strip 1211 is trapezoidal. The sealing strip 1211 and the connecting plate 122 are interference-fitted.
[0025] The sealing structure 12 also includes a sliding plate 123. One end of the sliding plate 123 is connected to the sealing strip assembly 121. The other end of the sliding plate 123 is provided with a slide rail. The slide rail is arranged vertically. The sliding plate 123 is slidably connected to the docking hopper 11 via the slide rail.
[0026] In practical applications, filter presses experience a certain degree of vibration during operation, leading to relative movement between the discharge zone and the connecting hopper 11. The sliding plate 123 provides sufficient space for the sealing strip assembly 121 to move. When the discharge zone is displaced due to vibration, it causes the connecting plate 122 to move synchronously. Thus, driven by the connecting plate 122, the sealing strip 1211 slides relative to the connecting hopper 11 via the sliding plate 123. This effectively prevents excessive wear between the sealing strip 1211 and the connecting plate 122 caused by vibrations during filter press operation, which would ultimately affect the sealing performance of the sealing strip 1211. In summary, the aforementioned structure can extend the service life of the sealing strip 1211 to a certain extent.
[0027] The docking device 1 also includes a sealing structure 13. The sealing structure 13 includes a sealing edge strip 131 and an assembly plate 132. The sealing edge strip 131 surrounds the unloading area. The sealing edge strip 131 extends from the edge of the unloading area towards the center of the unloading area. The assembly plate 132 is fastened to the sealing edge strip 131. Assembly bolts are provided on the assembly plate 132. The assembly plate 132 is connected to the docking hopper 11 via the assembly bolts.
[0028] While the aforementioned structure moderately extends the service life of the sealing strip 1211, the presence of the sliding plate 123 provides an additional point for odor leakage. In practical applications, the sealing strip 131 is made of a deformable rubber material. Because the sealing strip 131 extends from the edge of the discharge area to the center, it bends into a curved shape under the pressure of the discharge area. This achieves final sealing between the discharge area and the docking hopper 11, further enhancing the sealing effect. However, due to the vibration during filter press operation, the friction between the sealing strip 131 and the discharge area is significant, leading to rapid wear. When the wear reaches a certain level, the bolts on the mounting plate 132 can be unscrewed, the mounting plate 132 removed from the docking hopper 11, and a new sealing strip 131 can be replaced.
[0029] The connecting device 2 also includes spray pipes 23. Spray pipes 23 are disposed within the connecting channel 21. There are multiple spray pipes 23. The spray pipes 23 are connected to the solvent channel 22. Spray nozzles are provided on the spray pipes 23.
[0030] In practical applications, the solvent in solvent channel 22 is sprayed out through the nozzle on spray pipe 23. This allows the sulfur sludge filter cake to easily slide into the mixing device 3 via connecting channel 21 using the solvent.
[0031] The stirring device 3 includes a stirring tank 31, a power motor 32, and a stirring rod 33. The stirring tank 31 is connected to the connecting channel 21. The stirring rod 33 extends into the stirring tank 31. The stirring rod 33 is connected to the output end of the power motor 32.
[0032] After the sulfur sludge filter cake enters the mixing tank 31, the power motor 32 drives the stirring rod 33 to stir the sulfur sludge filter cake in the mixing tank 31, so that the sulfur sludge filter cake and solvent are fully mixed. After sufficient stirring, the mixed sulfur sludge is pumped into a subsequent device for recycling. Preferably, a one-way valve is provided between the mixing tank 31 and the connecting channel 21 to prevent the sulfur sludge from flowing back into the connecting channel 21 when the stirring device 3 is stirring, which would affect the final stirring effect. Preferably, the specific structure of the stirring device 3 can be as shown in the attached figure. Figure 5 The structure shown.
[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A closed loop recycling device for sulfur sludge recycling, characterized by: include: Docking device (1), connecting device (2), stirring device (3); The docking device (1) includes a docking hopper (11) and a sealing structure (12); The docking hopper (11) is fitted onto the unloading area of the filter press; The sealing structure (12) is disposed between the docking hopper (11) and the unloading area; The sealing structure (12) is connected to the docking hopper (11); The sealing structure (12) is in contact with the unloading area; The connecting device (2) includes a connecting channel (21) and a solvent channel (22); One end of the connecting channel (21) is connected to the docking hopper (11), and the other end is connected to the stirring device (3); The solvent channel (22) is connected to the communication channel (21).
2. A closed loop device for recycling sulfur mud according to claim 1, characterized in that: The sealing structure (12) includes a sealing edge strip assembly (121) and a connecting plate (122); The connecting plate (122) surrounds the unloading area; The connecting plate (122) is fixedly connected to the unloading area; The connecting plate (122) has a receiving groove corresponding to the sealing strip assembly (121); The sealing strip assembly (121) surrounds the unloading area. The sealing strip assembly (121) extends into the receiving groove; The sealing strip assembly (121) is connected to the docking hopper (11).
3. A closed loop device for recycling sulfur mud according to claim 2, characterized in that: The sealing strip assembly (121) includes a sealing strip (1211). The number of the sealing strips (1211) is at least three; The sealing strips (1211) are arranged one by one from top to bottom; One end of the sealing strip (1211) is connected to the docking hopper (11), and the other end extends into the receiving groove.
4. A closed loop device for recycling sulfur mud according to claim 2, characterized in that: The sealing structure (12) also includes a sliding plate (123); One end of the sliding plate (123) is connected to the sealing strip assembly (121); The other end of the sliding plate (123) is provided with a slide rail; The slide rail is arranged in the vertical direction; The sliding plate (123) is slidably connected to the docking hopper (11) via the slide rail.
5. A closed loop device for recycling sulfur mud according to claim 1, characterized in that: The docking device (1) also includes a sealed structure (13). The sealed structure (13) includes a sealed edge strip (131) and an assembly plate (132). The sealing strip (131) surrounds the unloading area. The sealed edge strip (131) extends from the edge of the unloading area toward the center of the unloading area; The assembly plate (132) is fastened to the sealing strip (131); The assembly plate (132) is provided with assembly bolts; The assembly plate (132) is connected to the docking hopper (11) by the assembly bolts.
6. A closed loop device for recycling sulfur mud according to claim 1, characterized in that: The connecting device (2) also includes a spray pipe (23); The spray pipe (23) is installed in the connecting channel (21); The number of spray pipes (23) is multiple; The spray pipe (23) is connected to the solvent channel (22); The spray pipe (23) is equipped with a nozzle.
7. A closed loop device for recycling sulfur mud according to claim 1, characterized in that: The stirring device (3) includes a stirring tank (31), a power motor (32), and a stirring rod (33). The stirring barrel (31) is communicated with the communication channel (21); The stirring rod (33) extends into the stirring barrel (31); The stirring rod (33) is connected with the output end of the power motor (32).