Condensate benzene series recovery equipment for styrene production through ethylbenzene dehydrogenation

Abstract

The utility model is applicable to the technical field of chemical production equipment, and particularly relates to condensate benzene series recovery equipment for styrene production through ethylbenzene dehydrogenation, which comprises a support bottom plate, a coalescer is arranged on the surface of the support bottom plate, a support frame is connected to the surface of the support bottom plate, a liquid inlet pipe is arranged on the side surface of the support frame, and a liquid outlet pipe is arranged on the side surface of the liquid inlet pipe. A liquid pump is installed on the surface of the supporting bottom plate, and the two ends of the liquid pump are connected with a liquid conveying pipe and a liquid extraction pipe correspondingly. According to the utility model, two core functions of solid-liquid separation and iron-based catalyst recovery are realized structurally. Firstly, solid impurities in mixed liquid are effectively removed, and the separation efficiency of a subsequent coalescer is improved; 2, through the linkage design of the rotating panel and the electromagnetic iron rod, iron-based catalyst particles are efficiently recycled, the loss of the catalyst is reduced, and the production cost is reduced; and thirdly, the interference of solid impurities on the coalescer is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment technology, specifically a device for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene. Background Technology

[0002] The dehydrogenation of ethylbenzene to styrene is an important industrial production process in the chemical industry. The resulting condensate contains benzene compounds and other impurities, such as iron-based catalyst particles and solid impurities. This condensate requires effective separation and recovery in subsequent treatment to reduce the burden on equipment and minimize resource waste. Existing condensate treatment equipment mostly employs simple physical filtration or separation methods, which can achieve a certain degree of liquid-solid separation, but have significant limitations in the recovery of iron-based catalysts and the efficient separation of benzene compounds, often failing to meet the demands of modern chemical production for resource recovery and efficient treatment.

[0003] Current condensate treatment technologies, when dealing with mixed liquids containing iron-based catalyst particles, lack specially designed, high-efficiency recovery devices. This results in the incomplete recovery and utilization of iron-based catalysts, increasing catalyst consumption and production costs. Simultaneously, solid impurities easily accumulate or clog filter components during treatment, affecting operational stability and processing efficiency. Furthermore, unremoved impurities interfere with the separation performance of downstream equipment (such as coalescer), further increasing energy consumption and reducing resource utilization. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a device for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene, aiming to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene includes a supporting base plate, a coalescer provided on the surface of the supporting base plate, a support frame connected to the surface of the supporting base plate, a liquid inlet pipe provided on the side of the support frame, and a liquid pump installed on the surface of the supporting base plate, with a liquid delivery pipe and a liquid extraction pipe connected to both ends of the liquid pump, respectively.

[0007] The surface of the supporting base plate is connected to a filtrate collection tank, and the inside of the filtrate collection tank is connected to several support blocks. The surfaces of the several support blocks are connected to a filter box body. One end of the filter box body is rotatably connected to a rotating panel. The upper surface of the rotating panel has a through hole, and the lower surface of the rotating panel is equipped with an electromagnet rod.

[0008] The rotating panel and the surface of the filtrate collection box are both provided with a driving component, which is used to drive the rotating panel to rotate on the surface of the filter box.

[0009] Furthermore, an arc-shaped slider is installed at one end of the filter housing, and an annular groove is provided on the lower surface of the rotating panel. The rotating panel is rotatably connected to the filter housing through the cooperation of the annular groove and the arc-shaped slider.

[0010] Furthermore, the drive assembly includes a drive motor, which is mounted on the side of the filtrate collection tank. A drive gear is mounted on the output end of the drive motor. A transmission gear ring is sleeved on the outer side of the rotating panel, and the outer side of the transmission gear ring meshes with the outer side of the drive gear.

[0011] Furthermore, the end of the liquid extraction tube furthest from the liquid pump is located at the bottom of the filtrate collection tank.

[0012] Furthermore, a material discharge hole is provided on the lower surface of the filter box, and a rotating hinge is installed on the lower surface of the filter box, with a flip plate rotatably connected to the outer side of the rotating hinge.

[0013] An electric telescopic rod is installed on the lower surface of the filtrate collection box, and a support block is provided at one end of the electric telescopic rod.

[0014] The bottom of the side of the filtrate collection box is provided with a discharge hole, and a sealing door is movably connected to the side of the filtrate collection box near the discharge hole.

[0015] This utility model provides a device for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene, which has the following features:

[0016] Beneficial effects:

[0017] This equipment structurally achieves two core functions: solid-liquid separation and iron-based catalyst recovery. Firstly, it effectively removes solid impurities from the mixed liquid, improving the separation efficiency of the subsequent coalescing unit. Secondly, through the coordinated design of the rotating panel and the electromagnet rod, it efficiently recovers iron-based catalyst particles, reducing catalyst loss and lowering production costs. Thirdly, it minimizes the interference of solid impurities on the coalescing unit, extending the equipment's service life.

[0018] This technical solution solves the problem of ineffective recovery of iron-based catalysts in existing equipment and achieves efficient separation of liquid and solid impurities through a multi-functional filter box. It has broad application prospects, especially suitable for the recovery and treatment of benzene-containing condensate in the ethylbenzene dehydrogenation to styrene production process. This not only improves resource utilization efficiency but also reduces operating costs, demonstrating high economic benefits and environmental value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a device for recovering benzene series compounds from condensate produced by the dehydrogenation of ethylbenzene to styrene.

[0020] Figure 2 This is a partial structural schematic diagram of a device for recovering benzene series compounds from condensate produced by the dehydrogenation of ethylbenzene to styrene.

[0021] In the diagram: 1. Support base plate; 2. Coalescer; 3. Liquid delivery pipe; 4. Liquid pump; 5. Liquid extraction pipe; 6. Filtrate collection tank; 7. Filter box body; 8. Liquid inlet pipe; 9. Support frame; 10. Rotating panel; 11. Through hole; 12. Transmission gear ring; 13. Drive gear; 14. Drive motor; 15. Support block; 16. Electromagnetic rod; 17. Rotating hinge; 18. Discharge hole; 19. Tilting plate; 20. Electric telescopic rod; 21. Support top block; 22. Sealing door; 23. Discharge hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figures 1-2 As shown in the figure, the present invention provides a condensate benzene series recovery device for the production of styrene from ethylbenzene dehydrogenation, including a supporting base plate 1, and a coalescer 2 is provided on the surface of the supporting base plate 1. A support frame 9 is connected to the surface of the supporting base plate 1, and a liquid inlet pipe 8 is provided on the side of the support frame 9. A liquid pump 4 is installed on the surface of the supporting base plate 1, and a liquid delivery pipe 3 and a liquid extraction pipe 5 are respectively connected to both ends of the liquid pump 4.

[0025] A filtrate collection tank 6 is connected to the surface of the supporting base plate 1, and the end of the liquid extraction pipe 5 away from the liquid pump 4 is located at the bottom of the filtrate collection tank 6.

[0026] The inside of the filtrate collection tank 6 is connected to several support blocks 15. The surfaces of the several support blocks 15 are connected to the filter box body 7. One end of the filter box body 7 is rotatably connected to a rotating panel 10. An arc-shaped slider is installed at one end of the filter box body 7. An annular groove is opened on the lower surface of the rotating panel 10. The rotating panel 10 is rotatably connected to the filter box body 7 through the cooperation of the annular groove and the arc-shaped slider.

[0027] The upper surface of the rotating panel 10 has a through hole 11, and the lower surface of the rotating panel 10 is equipped with an electromagnet rod 16. The liquid inlet pipe 8 is disposed inside the through hole 11, so that benzene-containing liquids from the outside can be completely injected into the interior of the filter box 7 through the liquid inlet pipe 8.

[0028] A drive assembly is provided on the surface of the rotating panel 10 and the filtrate collection tank 6, and the drive assembly is used to drive the rotating panel 10 to rotate on the surface of the filter box 7.

[0029] In one embodiment of this invention, after the benzene-containing liquid is injected into the filter housing 7 through the liquid inlet pipe 8, the liquid inlet pipe 8 passes through the through hole 11 and is directly connected to the interior of the filter housing 7, ensuring that the benzene-containing liquid can be completely injected into the filter housing 7. When the liquid is filtered inside the filter housing 7, solid impurities, due to their large particle size, cannot pass through the filter medium and remain inside the filter housing 7, while the liquid flows through the filter medium to the bottom of the filtrate collection tank 6. To ensure smooth liquid flow and effective interception of solid impurities, the filter medium of the filter housing 7 should be checked regularly to avoid a decrease in filtration efficiency or blockage due to excessive solid impurities.

[0030] In the design of the filter housing 7, the rotating panel 10 achieves stable rotation through the cooperation of an arc-shaped slider and an annular groove. This rotating structure ensures that the rotating panel 10 can move smoothly on the surface of the filter housing 7, preventing excessive shaking from affecting the operation of the equipment. An electromagnet rod 16 is installed on the lower surface of the rotating panel 10. Driven by the driving component, the electromagnet rod 16 rotates inside the filter housing 7, generating a uniform magnetic field. This magnetic field efficiently adsorbs catalyst particles containing iron components, separating them from the mixed liquid and accumulating them on the surface of the electromagnet rod 16, facilitating subsequent catalyst recovery. To ensure the effectiveness of the magnetic field adsorption, the magnetic strength of the electromagnet rod 16 should be adjusted appropriately according to the properties and concentration of the catalyst particles, avoiding excessive magnetic field adsorption of irrelevant impurities or insufficient catalyst adsorption due to an insufficient magnetic field.

[0031] The filtered liquid collects at the bottom of the filtrate collection tank 6, is then drawn by the liquid extraction pipe 5 by the liquid pump 4, and transported to the coalescer 2. The coalescer 2 further coalesces and separates benzene compounds from the liquid, recovering the benzene compounds and reducing the burden on subsequent processing systems. During this process, it is necessary to ensure the good sealing of the liquid delivery pipe 3 connections to prevent leakage or contamination during liquid transport.

[0032] Through the above working process, the equipment structurally achieves two core functions: solid-liquid separation and iron-based catalyst recovery. Its beneficial effects include: firstly, effectively removing solid impurities from the mixed liquid and improving the separation efficiency of the subsequent coalescer 2; secondly, through the linkage design of the rotating panel 10 and the electromagnet rod 16, efficiently recovering iron-based catalyst particles, reducing catalyst loss, and lowering production costs; and thirdly, reducing the interference of solid impurities on the coalescer 2 and extending the equipment's service life.

[0033] This technical solution solves the problem of ineffective recovery of iron-based catalysts in existing equipment and achieves efficient separation of liquid and solid impurities through a multifunctional filter box 7. It has broad application prospects, especially suitable for the recovery and treatment of benzene-containing condensate in the ethylbenzene dehydrogenation to styrene production process. This not only improves resource utilization efficiency but also reduces operating costs, demonstrating high economic benefits and environmental value.

[0034] In this embodiment, the drive assembly includes a drive motor 14, which is mounted on the side of the filtrate collection tank 6. A drive gear 13 is mounted on the output end of the drive motor 14. A transmission gear ring 12 is sleeved on the outer side of the rotating panel 10, and the outer side of the transmission gear ring 12 meshes with the outer side of the drive gear 13.

[0035] After the drive motor 14 is powered on, it drives the transmission gear ring 12 to rotate synchronously via the drive gear 13, thereby achieving stable rotation of the rotating panel 10. During rotation, the electromagnet rod 16 generates a uniform magnetic field inside the filter housing 7 as the rotating panel 10 moves, achieving full-coverage adsorption of iron-based catalyst particles in the liquid. This design ensures that every part of the liquid area inside the filter housing 7 is affected by the electromagnetic field, improving the recovery efficiency of the iron-based catalyst.

[0036] During implementation, it is necessary to ensure the smooth sliding fit between the rotating panel 10 and the filter housing 7. The connection between the annular slide groove and the arc-shaped slider needs to be inspected and maintained regularly to ensure stable rotation. The meshing state between the transmission gear ring 12 and the drive gear 13 must also be maintained well to avoid unstable operation of the rotating panel 10 due to gear loosening or wear.

[0037] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a discharge hole 18 is provided on the lower surface of the filter box 7, and a rotating hinge 17 is installed on the lower surface of the filter box 7, with a flip plate 19 rotatably connected to the outer side of the rotating hinge 17.

[0038] An electric telescopic rod 20 is installed on the lower surface of the filtrate collection tank 6, and a support top block 21 is provided at one end of the electric telescopic rod 20;

[0039] A discharge hole 23 is provided at the bottom of the side of the filtrate collection tank 6, and a sealing door 22 is movably connected to the side of the filtrate collection tank 6 near the discharge hole 23. After the flip plate 19 is flipped downward by the rotating hinge 17, its upper surface corresponds to the position of the discharge hole 23.

[0040] In this embodiment, when the filtrate collection tank 6 needs to discharge, the electric telescopic rod 20 is activated and drives the support block 21 to move downward. The top of the support block 21 abuts against the tilting plate 19, causing it to tilt downward around a fixed point via the rotating hinge 17. During the tilting process, the upper surface of the tilting plate 19 corresponds to the position of the discharge hole 23 on the side of the filtrate collection tank 6, forming a guiding channel. At this time, solid impurities (such as filtered impurities or iron-based catalyst particles) collected at the bottom of the filtrate collection tank 6 slide down to the upper surface of the tilting plate 19 under the action of gravity and are discharged outside the equipment through the discharge hole 23.

[0041] The tilting plate 19 provides excellent material guiding, and its inclined design prevents solid impurities from accumulating or remaining during the discharge process. This guiding function ensures that solid impurities are discharged quickly and completely, while avoiding any impact on other components of the equipment. Furthermore, since the movement of the tilting plate 19 is controlled by the electric telescopic rod 20, the discharge process can be precisely controlled, providing excellent batch discharge capability. The stroke and action time of the electric telescopic rod 20 can be flexibly adjusted according to actual needs, enabling automatic discharge of different batches and quantities of solid impurities.

[0042] The design of the sealing door 22 further enhances the reliability of equipment operation. After the discharge process is completed, the sealing door 22 can be moved to close the discharge port 23, ensuring that there will be no leakage or backflow of impurities during normal operation. At the same time, the sealing door 22 provides good sealing performance during equipment operation, preventing the influence of the external environment on the liquid and impurities in the filtrate collection tank 6.

[0043] The automated material discharge system has the following advantages: automatic material discharge is achieved by driving the electric telescopic rod 20, eliminating the need for manual intervention and improving the convenience and efficiency of operation; by controlling the extension and retraction of the electric telescopic rod 20, the gradual discharge of different batches of solid impurities can be achieved, avoiding blockage or excessive discharge problems caused by one-time discharge; the tilting plate 19 acts as a material guide during the discharge process, effectively preventing the retention of solid impurities and ensuring smooth discharge; after the discharge is completed, the sealing door 22 can close the discharge hole 23 to prevent leakage during operation, enhancing the stability and environmental friendliness of the equipment.

[0044] Overall, the discharge system is compact in structure and complete in function, capable of efficiently discharging solid impurities, and has strong adaptability and reliability.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation, comprising a supporting base plate (1), wherein a coalescer (2) is disposed on the surface of the supporting base plate (1), a support frame (9) is connected to the surface of the supporting base plate (1), and a liquid inlet pipe (8) is disposed on the side of the support frame (9), characterized in that, A liquid pump (4) is installed on the surface of the supporting base plate (1), and the two ends of the liquid pump (4) are respectively connected to a liquid delivery pipe (3) and a liquid extraction pipe (5); The surface of the supporting base plate (1) is connected to a filtrate collection tank (6), and the interior of the filtrate collection tank (6) is connected to several support blocks (15). The surfaces of several support blocks (15) are connected to a filter box body (7). One end of the filter box body (7) is rotatably connected to a rotating panel (10). The upper surface of the rotating panel (10) is provided with a through hole (11), and the lower surface of the rotating panel (10) is equipped with an electromagnet rod (16). The rotating panel (10) and the filtrate collection box (6) are both provided with a driving component, and the driving component is used to drive the rotating panel (10) to rotate on the surface of the filter box (7).

2. The equipment for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene according to claim 1, characterized in that, An arc-shaped slider is installed at one end of the filter box (7), and an annular groove is provided on the lower surface of the rotating panel (10). The rotating panel (10) is rotatably connected to the filter box (7) through the cooperation of the annular groove and the arc-shaped slider.

3. The equipment for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene according to claim 2, characterized in that, The drive assembly includes a drive motor (14), which is mounted on the side of the filtrate collection tank (6). A drive gear (13) is mounted on the output end of the drive motor (14). A transmission gear ring (12) is sleeved on the outer side of the rotating panel (10), and the outer side of the transmission gear ring (12) meshes with the outer side of the drive gear (13).

4. The equipment for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene according to claim 1, characterized in that, The end of the liquid extraction tube (5) away from the liquid pump (4) is located at the bottom of the filter liquid collection tank (6).

5. The equipment for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene according to claim 1, characterized in that, The filter box (7) has a discharge hole (18) on its lower surface and a rotating hinge (17) is installed on its lower surface. A flip plate (19) is rotatably connected to the outside of the rotating hinge (17). An electric telescopic rod (20) is installed on the lower surface of the filtrate collection box (6), and a support top block (21) is provided at one end of the electric telescopic rod (20); The bottom of the side of the filtrate collection box (6) is provided with a discharge hole (23), and a sealing door (22) is movably connected to the side of the filtrate collection box (6) near the discharge hole (23).

6. The equipment for recovering benzene series compounds from condensate produced by ethylbenzene dehydrogenation to styrene according to claim 5, characterized in that, After the flip plate (19) is flipped downward by the rotating hinge (17), its upper surface corresponds to the position of the discharge hole (23).

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