A styrene decoloring device for styrene extraction

By designing auxiliary and separation mechanisms, the filter components in the styrene decolorization unit can be replaced without downtime and the tank can be easily cleaned, solving the problem of downtime maintenance in the existing technology and improving the continuity and efficiency of production.

CN224308390UActive Publication Date: 2026-06-02NORTH HUAJIN CHEM IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTH HUAJIN CHEM IND CO LTD
Filing Date
2025-05-11
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing styrene decolorization unit requires shutdown when replacing or cleaning filter plates and activated carbon plates, which affects production continuity and efficiency.

Method used

An auxiliary mechanism and a separation mechanism were designed. The auxiliary mechanism enables the filter components to be replaced without stopping the machine through a turntable, while the separation mechanism enables the tank to be opened conveniently by moving the sealing cover. These mechanisms are used for the maintenance of the filter components and the tank, respectively.

Benefits of technology

It enables seamless replacement of filter components and convenient cleaning of the tank, ensuring continuous and efficient production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224308390U_ABST
Patent Text Reader

Abstract

The utility model belongs to styrene preparation technical field discloses a kind of styrene decoloring devices for styrene extraction, including including jar body (1), filter box (2), separation mechanism (3) and auxiliary mechanism (6);The filter box (2) is set at the right side of jar body (1), separation mechanism (3) is set at the left side of jar body (1), and the auxiliary mechanism (6) is set at the outside of filter box (2);The top of the filter box (2) is provided with liquid suction pump (7), and liquid suction pump (7) is provided with liquid suction tube between jar body (1), and liquid suction pump (7) is provided with infusion tube between filter box (2).The utility model is provided with auxiliary mechanism, realizes to replace filter assembly without stopping, improves work efficiency, and guarantees the continuity of production.
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Description

Technical Field

[0001] This utility model belongs to the field of styrene preparation technology, and in particular relates to a styrene decolorization device for styrene extraction. Background Technology

[0002] Styrene is an organic compound with the chemical formula C8H8. The electrons of the vinyl group are conjugated with the benzene ring. It is insoluble in water but soluble in most organic solvents such as ethanol and ether. It is an important monomer for synthetic resins, ion exchange resins, and synthetic rubber. During the extraction and processing of styrene, a decolorization device is required to remove its color.

[0003] A search revealed, for example, a utility model patent with Chinese patent publication number CN221491743U, which discloses a styrene decolorizing device for styrene extraction. The device includes a tank, with boxes fixedly connected to both sides of the tank's inner cavity. Spray nozzles are connected to the upper and lower positions on one side of each box. A pipe is connected to one side of each box, with one end extending to the outside of the tank. An electromagnetic flowmeter is installed on the outer surface of the pipe. A rotating shaft is rotatably connected to the top of the tank's inner cavity via a bearing. This utility model, by incorporating a tank, boxes, spray nozzles, pipe, electromagnetic flowmeter, rotating shaft, stirring plate, and servo motor, facilitates repeated spraying, stirring, and mixing of styrene raw materials and decolorizing detergent. By including a filter box, filter plate, activated carbon layer, and extraction components, it enables secondary adsorption and decolorization of the neutralized styrene, improving the decolorization effect. This structure provides an advantage in improving the decolorization effect during use, thus meeting customer needs.

[0004] However, the decolorization device disclosed in this patent has certain limitations. After the filter plate and activated carbon plate have been used for a long time, they inevitably need to be replaced, cleaned and other maintenance operations. However, the machine must be stopped to perform the above operations, which leads to a long downtime. In actual production, this greatly reduces work efficiency and affects the continuity and efficiency of production. Therefore, a styrene decolorization device for ethylene extraction is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a styrene decolorization device that is easy to maintain and clean and does not affect the continuity of production.

[0006] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:

[0007] A styrene decolorization device for styrene extraction includes a tank 1, a filter box 2, a separation mechanism 3, and an auxiliary mechanism 6. The filter box 2 is located on the right side of the tank 1, the separation mechanism 3 is located on the left side of the tank 1, and the auxiliary mechanism 6 is located outside the filter box 2. A liquid suction pump 7 is installed on the top of the filter box 2, a liquid suction pipe is installed between the liquid suction pump 7 and the tank 1, and a liquid delivery pipe is installed between the liquid suction pump 7 and the filter box 2.

[0008] The auxiliary mechanism 6 includes an arc-shaped shell 601, a second motor 602, a rotating rod 603, a turntable 604, and two mounting frames 605. The arc-shaped shell 601 is fixedly connected to the side of the filter box 2, the second motor 602 is fixedly fixed to the top of the arc-shaped shell 601, and the rotating rod 603 is fixedly connected to the output shaft of the second motor 602. The turntable 604 is disposed inside the arc-shaped shell 601, and its center is fixedly connected to the rotating rod 603. Mounting frames 605 are fixedly installed on both the left and right sides of the turntable 604, and filter components 606 are disposed inside both mounting frames 605.

[0009] An opening adapted to the turntable 604 is provided between the filter box 2 and the arc-shaped shell 601, and a sealing gasket is provided at the connection between the opening and the turntable 604.

[0010] The separation mechanism 3 includes a mounting box 301, a motor 302, a lead screw 303, and an outer rod 304. The mounting box 301 is fixed to the left side of the tank 1. The motor 302 is fixedly mounted on the inner bottom wall of the mounting box 301. The lead screw 303 is coaxially fixed with the output shaft of the motor 302. The outer rod 304 is fixedly connected to the outer surface of the lead screw 303. A slider 305 is fixedly mounted on the outer surface of the outer rod 304. Sliding grooves 306 adapted to the slider 305 are provided on the left and right inner walls of the mounting box 301. A lifting rod 307 is fixedly mounted on the top of the outer rod 304. A sealing cover 4 is movably mounted on the top of the tank 1. The sealing cover 4 is fixedly connected to the lifting rod 307. A stirring assembly 5 extending into the tank 1 is provided on the sealing cover 4. The stirring assembly 5 includes a stirring motor. The stirring motor is fixedly mounted on the top of the sealing cover 4. A stirring rod is fixedly mounted on the output shaft of the stirring motor.

[0011] Furthermore, slots adapted to the filter assembly 606 are provided on the inner walls of both mounting frames 605.

[0012] Furthermore, the filter assembly 606 includes a filter screen and an activated carbon plate arranged side by side.

[0013] Furthermore, a sealing door 201 is provided on the rear side of the filter box 2.

[0014] Furthermore, the second motor 602 is fixed at the center of the arc-shaped shell 601.

[0015] Furthermore, the turntable is semi-circular.

[0016] Furthermore, the lead screw 303 is threadedly connected to the outer rod 304.

[0017] When filter assembly 606 needs maintenance, start motor 602. Motor 602 drives rotating rod 603 to rotate, and rotating rod 603 drives turntable 604 to rotate, so that one of the unused filter assemblies 606 rotates into filter box 2.

[0018] When the filter assembly 606 needs to be replaced, open the rear sealing door 201 of the filter box 2, remove the filter assembly 606 from the mounting frame 605, and insert the new filter assembly 606 into the slot.

[0019] When cleaning or maintenance of the inside of tank 1 is required, the operator starts motor 302 in the separation mechanism 3. After motor 302 starts, its output shaft drives the lead screw 303 to rotate. Since the outer rod 304 is threadedly connected to the lead screw 303, and the sliders 305 on the left and right sides of the outer rod 304 cooperate with the sliding grooves 306 on the inner wall of the mounting box 301, the rotation of the lead screw 303 will drive the outer rod 304 to rise along the axial direction of the lead screw 303. As the outer rod 304 rises, the lifting rod 307 drives the sealing cover 4 to move away from the top of tank 1, thereby opening tank 1. This makes it convenient for the operator to clean, inspect or repair the internal structure of tank 1. After the operation is completed, motor 302 is started again to reverse it. The lead screw 303 drives the outer rod 304 to rise, and finally the sealing cover 4 is closed again on the top of tank 1, ensuring the sealing of tank 1 and preparing for the next styrene decolorization work.

[0020] This utility model has the following advantages:

[0021] 1. This styrene extraction and decolorization device for styrene extraction, by setting an auxiliary mechanism, allows for the starting of motor two when the filter components need maintenance. Motor two drives the rotating rod to rotate, which in turn drives the turntable to rotate, causing one of the unused filter components to rotate into the filter box. This enables the replacement of filter components without stopping the machine, greatly improving work efficiency and ensuring the continuity of production.

[0022] 2. This styrene extraction and decolorization device, by setting a separation mechanism, allows the sealing cover to be moved to open the tank when cleaning or maintenance is required inside the tank. Compared with an integrated stirring structure, it is more convenient to maintain and clean. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a rear-view three-dimensional structural diagram of the filter box of this utility model;

[0026] Figure 4 This is a schematic diagram of the auxiliary mechanism of this utility model;

[0027] Figure 5 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0028] In the diagram: 1. Tank; 2. Filter box; 201. Sealing door; 3. Separation mechanism; 301. Mounting box; 302. Motor 1; 303. Lead screw; 304. Outer rod; 305. Sliding block; 306. Slide groove; 307. Lifting rod; 4. Sealing cover; 5. Stirring assembly; 6. Auxiliary mechanism; 601. Arc-shaped shell; 602. Motor 2; 603. Rotating rod; 604. Turntable; 605. Mounting frame; 606. Filter assembly; 7. Suction pump. Detailed Implementation

[0029] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0030] Please see Figure 1-5 The styrene decolorization device for styrene extraction in this embodiment includes a tank 1, a filter box 2 is provided on the right side of the tank 1, a separation mechanism 3 is provided on the left side of the tank 1, and an auxiliary mechanism 6 is provided on the outside of the filter box 2.

[0031] The auxiliary mechanism 6 includes an arc-shaped shell 601. The arc-shaped shell 601 is fixedly installed on the outer surface of the filter box 2. The second motor 602 is fixedly installed on the top of the arc-shaped shell 601. A rotating rod 603 is fixedly installed at the output shaft of the second motor 602. A turntable 604 is fixedly installed on the outer surface of the rotating rod 603. Mounting frames 605 are fixedly installed on both the left and right sides of the turntable 604. Filter components 606 are provided inside both mounting frames 605.

[0032] Furthermore, an opening adapted to the turntable is provided between the filter box and the arc-shaped shell, and a sealing gasket is provided at the connection between the opening and the turntable.

[0033] Furthermore, slots adapted to the filter assembly are provided on the inner walls of both mounting frames, and a sealed door is provided on the rear side of the filter box. The filter assembly includes a filter screen and an activated carbon plate.

[0034] Furthermore, the separation mechanism includes a mounting box, which is fixedly installed on the left side of the tank. A motor is fixedly installed on the inner bottom wall of the mounting box, and a lead screw is fixedly installed at the output shaft of the motor.

[0035] Furthermore, an outer rod is threaded onto the outer surface of the lead screw, and sliders are fixedly installed on both the left and right sides of the outer rod. Slide grooves adapted to the sliders are opened on the left and right inner walls of the mounting box.

[0036] Furthermore, a lifting rod is fixedly installed on the top of the outer rod, and a sealing cover is movably installed on the top of the tank. The sealing cover is fixedly connected to the lifting rod, and a stirring assembly extending into the tank is provided on the sealing cover. The stirring assembly includes a stirring motor, and a stirring motor is fixedly installed on the top of the sealing cover. A stirring rod is fixedly installed at the output shaft of the stirring motor.

[0037] Furthermore, a liquid suction pump is installed on the top of the filter box, a liquid suction pipe is installed between the liquid suction pump and the tank body, and a liquid delivery pipe is installed between the liquid suction pump and the filter box.

[0038] In actual operation, styrene raw material and decolorizing detergent are first transported into tank 1 through pipelines. At this time, the stirring motor in stirring assembly 5 is started. The stirring motor drives the stirring rod to rotate, stirring and mixing the styrene raw material and decolorizing detergent, promoting the neutralization reaction between the two, and initially achieving the decolorization of styrene.

[0039] While the neutralization reaction is underway, if the filter assembly 606 working in the filter box 2 needs maintenance, the operator starts the second motor 602 in the auxiliary mechanism 6. The second motor 602 starts working, and its output shaft drives the rotating rod 603 to rotate. The rotating rod 603 then drives the turntable 604, which is fixedly connected to it, to rotate inside the arc-shaped shell 601. Since there are mounting frames 605 on both the left and right sides of the turntable 604, and the filter assembly 606 is installed in the mounting frame 605, as the turntable 604 rotates, one of the filter assemblies 606 in standby state will rotate to the filter box 2 through the opening. At this time, the working filter assembly 606 rotates to the arc-shaped shell 601, and the new filter assembly 606 begins to be used. The whole process does not require stopping the machine, which greatly improves the work efficiency.

[0040] When it is necessary to replace the filter assembly 606, open the rear sealing door 201 of the filter box 2, remove the filter assembly 606 from the mounting frame 605, and insert the new filter assembly 606 into the slot.

[0041] After the neutralization reaction is completed, the styrene liquid after the reaction flows into the filter box 2 through the suction pump 7, suction pipe and delivery pipe. It undergoes secondary adsorption and decolorization through the newly put-in filter component 606. The filter screen in the filter component 606 first filters out larger particulate impurities in the styrene liquid. Then, the activated carbon plate uses its strong adsorption performance to deeply adsorb organic pigments and other impurities in the styrene liquid, further improving the decolorization effect of styrene.

[0042] When cleaning or maintenance of the inside of tank 1 is required, the operator starts motor 302 in the separation mechanism 3. After motor 302 starts, its output shaft drives the lead screw 303 to rotate. Since the outer rod 304 is threadedly connected to the lead screw 303, and the sliders 305 on the left and right sides of the outer rod 304 cooperate with the sliding grooves 306 on the inner wall of the mounting box 301, the rotation of the lead screw 303 will drive the outer rod 304 to rise along the axial direction of the lead screw 303. As the outer rod 304 rises, the lifting rod 307 drives the sealing cover 4 to move away from the top of tank 1, thereby opening tank 1. This makes it convenient for the operator to clean, inspect or repair the internal structure of tank 1. After the operation is completed, motor 302 is started again to reverse it. The lead screw 303 drives the outer rod 304 to rise, and finally the sealing cover 4 is closed again on the top of tank 1, ensuring the sealing of tank 1 and preparing for the next styrene decolorization work.

[0043] In summary, this styrene decolorization device for styrene extraction, by setting up an auxiliary mechanism 6, allows for the replacement of filter components 606 without stopping the machine, thereby greatly improving work efficiency and ensuring the continuity of production.

[0044] Furthermore, by setting up the separation mechanism 3, when it is necessary to clean or maintain the inside of the tank 1, the sealing cover 4 can be moved to open the tank 1, which is more convenient for maintenance and cleaning compared to the integrated stirring structure.

[0045] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and improvements without departing from the principles of the present invention, and these modifications and improvements should also be considered to fall within the protection scope of the present invention.

Claims

1. A styrene decolorization apparatus for styrene extraction, characterized in that, It includes a tank (1), a filter box (2), a separation mechanism (3), and an auxiliary mechanism (6); the filter box (2) is located on the right side of the tank (1), the separation mechanism (3) is located on the left side of the tank (1), and the auxiliary mechanism (6) is located on the outside of the filter box (2); a suction pump (7) is provided on the top of the filter box (2), a suction pipe is provided between the suction pump (7) and the tank (1), and a delivery pipe is provided between the suction pump (7) and the filter box (2); The auxiliary mechanism (6) includes an arc-shaped shell (601), a second motor (602), a rotating rod (603), a turntable (604), and two mounting frames (605). The arc-shaped shell (601) is fixedly connected to the side of the filter box (2), the second motor (602) is fixedly mounted on the top of the arc-shaped shell (601), and the rotating rod (603) is fixedly connected to the output shaft of the second motor (602). The turntable (604) is located inside the arc-shaped shell (601), and its center is fixedly connected to the rotating rod (603). Mounting frames (605) are fixedly mounted on both the left and right sides of the turntable (604), and filter components (606) are provided inside both mounting frames (605). An opening adapted to the turntable (604) is provided between the filter box (2) and the arc-shaped shell (601), and a sealing gasket is provided at the connection between the opening and the turntable (604). The separation mechanism (3) includes a mounting box (301), a motor (302), a lead screw (303), and an outer rod (304). The mounting box (301) is fixed to the left side of the tank (1). The motor (302) is fixedly mounted on the inner bottom wall of the mounting box (301). The lead screw (303) is coaxially fixed with the output shaft of the motor (302). The outer rod (304) is fixedly connected to the outer surface of the lead screw (303). A slider (305) is fixedly mounted on the outer surface of the outer rod (304). The left and right inner walls are provided with sliding grooves (306) that are adapted to the slider (305); the top of the outer rod (304) is fixedly installed with a lifting rod (307); the top of the tank (1) is movably installed with a sealing cover (4); the sealing cover (4) is fixedly connected to the lifting rod (307); the sealing cover (4) is provided with a stirring assembly (5) extending into the tank (1); the stirring assembly (5) includes a stirring motor; the top of the sealing cover (4) is fixedly installed with a stirring motor; and the output shaft of the stirring motor is fixedly installed with a stirring rod.

2. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, Both mounting frames (605) have slots on their inner walls that are compatible with the filter assembly (606).

3. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, The filter assembly (606) includes a filter screen and an activated carbon plate arranged side by side.

4. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, A sealing door (201) is provided on the rear side of the filter box (2).

5. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, The second motor (602) is fixed at the center of the arc-shaped shell (601).

6. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, The turntable is semi-circular.

7. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, The lead screw (303) is threadedly connected to the outer rod (304).

8. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, When the filter assembly needs maintenance, start motor two. Motor two drives the rotating rod to rotate, and the rotating rod drives the turntable to rotate, causing one of the unused filter assemblies to rotate into the filter box.

9. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, When the filter assembly needs to be replaced, open the sealed door at the back of the filter box, remove the filter assembly from the mounting frame, and insert the new filter assembly into the slot.

10. The styrene decolorization apparatus for styrene extraction according to claim 1, characterized in that, When cleaning or maintenance of the tank's interior is required, the operator starts motor one in the separation mechanism. After motor one starts, its output shaft drives the lead screw to rotate. Since the outer rod is threadedly connected to the lead screw, and the sliders on both sides of the outer rod cooperate with the sliding grooves on the inner wall of the mounting box, the rotation of the lead screw will drive the outer rod to rise along the axial direction of the lead screw. As the outer rod rises, the lifting rod will move the sealing cover away from the top of the tank, thereby opening the tank and facilitating the operator to clean, inspect, or repair the internal structure of the tank. After the operation is completed, motor one is started again to reverse its direction. The lead screw drives the outer rod to rise, and finally, the sealing cover is re-closed on the top of the tank, ensuring the tank's airtightness and preparing for the next styrene decolorization operation.