A device for treating wastewater from a toluene chlorination process

Abstract

The utility model discloses a kind of wastewater treatment devices for toluene chlorination process, belong to wastewater treatment field, including water inlet, device shell, water outlet, first servo motor, rotating shaft, second servo motor, connecting shaft, arc block, insert block, clamping block, filtering mechanism, activated carbon layer.The utility model is driven rotating shaft and filtering mechanism system by servo motor, the maximization adsorption of toluene in wastewater treatment process and resource recycling are realized.The device not only can make toluene-containing wastewater multiple efficient contact filtering mechanism, improve adsorption efficiency, also equipped with convenient filtering mechanism cleaning and replacement mechanism, ensure that equipment long-term stable operation without affecting production continuity.In addition, after optimizing multistage purification step, including the depth treatment of activated carbon layer, effectively remove small particulate matter and other pollutants, ensure the safety of final discharge water quality, greatly reduce the pollution risk to environment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to a wastewater treatment device for toluene chlorination process. Background Technology

[0002] Benzyl chloride, a key organochlorine intermediate, has wide applications in various industrial fields such as dyes, pharmaceuticals, pesticides, fragrances, and organic synthesis. With the continuous expansion of its applications, the demand for benzyl chloride is also increasing. In China, the production of benzyl chloride from toluene mainly employs two reaction processes: thermal chlorination and photochlorination, which can be further divided into batch and continuous operations. Chlorination synthesis is the core step in benzyl chloride production, and its efficiency directly affects energy consumption, raw material loss, and product quality.

[0003] In the process of producing benzyl chloride from toluene through chlorination, achieving effective toluene recovery and resource recycling is a key measure to address environmental challenges and improve economic efficiency. Advanced adsorption technologies, such as activated carbon or porous polymer adsorbents, can efficiently recover residual toluene from wastewater. These adsorbents, with their high specific surface area and well-developed pore structure, can specifically capture toluene molecules in wastewater.

[0004] The recovered toluene can be desorbed to obtain a higher purity product, which can then be reused in the production of benzyl chloride or other chemical processes, achieving effective resource recycling. This not only reduces the demand for fresh toluene and lowers production costs, but also significantly reduces the discharge of wastewater containing harmful substances, alleviating environmental pressure. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art by designing a wastewater treatment device for the toluene chlorination process.

[0006] The technical solution of this utility model to achieve the above objectives is a wastewater treatment device for toluene chlorination process, comprising an inlet, a device shell, an outlet, a first servo motor, a rotating shaft, a second servo motor, a connecting shaft, an arc-shaped block, a plug block, a locking block, a filter mechanism, and an activated carbon layer. The inlet is fixedly installed on one side of the device shell, and the outlet is fixedly installed on the other side of the device shell. The first servo motor is fixedly installed on the device shell, and its output end is fixedly connected to one end of the rotating shaft. The other end of the rotating shaft is rotatably installed inside the device shell. The second servo motor is fixed... Installed inside the rotating shaft, the output end of the second servo motor is fixedly connected to one end of the connecting shaft, and the other end of the connecting shaft is rotatably installed inside the rotating shaft. Multiple arc-shaped blocks are fixedly installed on the connecting shaft at equal intervals. One end of each insert block is slidably installed on the arc surface of an arc block, and the other end of the insert block is slidably installed on the rotating shaft. Every two clips are slidably installed on a filter mechanism. The two clips on each filter mechanism are symmetrical to each other and are located on both sides of an insert block. The clips are inserted into the rotating shaft. The activated carbon layer is detachably installed inside the device housing near the outlet.

[0007] Preferably, a centrifugal pump is provided on the water inlet, and the centrifugal pump is fixedly installed on the water inlet.

[0008] Preferably, the device housing is provided with a sealing door, which is rotatably mounted on the top of the device housing.

[0009] Preferably, the first servo motor is provided with a protective cover, which is fixedly installed on the outside of the first servo motor and fixedly connected to the device housing.

[0010] Preferably, the filtration mechanism is provided with a honeycomb porous structure layer, which is fixedly installed inside the filtration mechanism.

[0011] Preferably, the water inlet is provided with a mechanical bar screen, which is fixedly installed on the water inlet.

[0012] Beneficial effects:

[0013] This invention provides a wastewater treatment device for toluene chlorination processes, which has the following beneficial effects. Through its structural design, during operation, wastewater enters the device housing through the inlet. At this time, a first servo motor drives a rotating shaft to rotate within the housing. This rotation of the shaft causes the filtration mechanism to rotate around the shaft. The first servo motor can repeatedly rotate in both directions, ensuring that the toluene-containing wastewater comes into contact with the filtration mechanism multiple times, maximizing toluene adsorption. Finally, after passing through an activated carbon layer, fine particulate matter is effectively adsorbed. The purified wastewater is then discharged from the outlet. When the filtration mechanism reaches saturation, a second servo motor is activated. The second servo motor rotates forward, driving a connecting shaft to rotate. This rotation of the connecting shaft causes an arc-shaped block to rotate around the connecting shaft, and the movement of the arc-shaped block drives the insertion of... The insert slides along the arc surface of the curved block towards the inside of the rotating shaft. After sliding inward, the end of the insert slides out from between the two locking blocks. As the insert moves out, a gap appears between the two locking blocks on the filter mechanism, and the locking blocks are no longer firmly inserted into the rotating shaft. At this point, the locking blocks can be removed from the rotating shaft, and the filter mechanism can be removed from the rotating shaft to complete the cleaning or replacement of the filter mechanism. After cleaning or replacement, the filter mechanism is moved back to the designated position on the rotating shaft. Then, the second servo motor is started. The second servo motor reverses, driving the connecting shaft to reverse. The reverse rotation of the connecting shaft drives the insert to slide along the arc surface of the curved block towards the outside of the rotating shaft and move to the middle of the two locking blocks. During the movement, the two locking blocks are pressed to both sides, causing the locking blocks to be inserted into the rotating shaft, completing the installation of the filter mechanism. Compared with the prior art, this utility model, through the servo motor-driven rotating shaft and filter mechanism system, achieves maximum adsorption of toluene and resource recycling in the wastewater treatment process. It not only enables wastewater containing toluene to come into efficient contact with the filtration mechanism multiple times, improving adsorption efficiency, but also features a convenient mechanism for cleaning and replacing the filtration mechanism, ensuring long-term stable operation of the equipment without affecting production continuity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the wastewater treatment device for the toluene chlorination process described in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a wastewater treatment device for toluene chlorination process according to the present invention;

[0016] Figure 3 This is a front structural cross-sectional view of a wastewater treatment device for toluene chlorination process according to the present invention;

[0017] Figure 4 This is a side structural cross-sectional view of a wastewater treatment device for toluene chlorination process according to the present invention;

[0018] Figure 5This is a top sectional view of the wastewater treatment device for the toluene chlorination process described in this utility model;

[0019] Figure 6 This utility model describes Figure 5 The structural diagram at point A is shown.

[0020] In the diagram, 1. Water inlet; 2. Device casing; 3. Water outlet; 4. First servo motor; 5. Rotating shaft; 6. Second servo motor; 7. Connecting shaft; 8. Arc-shaped block; 9. Insert block; 10. Locking block; 11. Filtering mechanism; 12. Activated carbon layer; 13. Centrifugal pump; 14. Sealing door; 15. Protective cover; 16. Honeycomb porous structure layer; 17. Mechanical bar. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "set / set up," "sleeve," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-6This utility model provides a technical solution: a wastewater treatment device for toluene chlorination process, comprising an inlet 1, a device shell 2, an outlet 3, a first servo motor 4, a rotating shaft 5, a second servo motor 6, a connecting shaft 7, an arc-shaped block 8, an insert block 9, a locking block 10, a filter mechanism 11, and an activated carbon layer 12. The inlet 1 is fixedly installed on one side of the device shell 2, and the outlet 3 is fixedly installed on the other side of the device shell 2. The first servo motor 4 is fixedly installed on the device shell 2, and its output end is fixedly connected to one end of the rotating shaft 5. The other end of the rotating shaft 5 is rotatably installed inside the device shell 2. The second servo motor 6 is fixedly installed on the other side of the device shell 2. The second servo motor 6 is fixedly connected to one end of the connecting shaft 7 and the other end of the connecting shaft 7 is rotatably installed inside the rotating shaft 5. Multiple arc-shaped blocks 8 are fixedly installed on the connecting shaft 7 at equal intervals. One end of each insert block 9 is slidably installed on the arc surface of an arc block 8, and the other end of the insert block 9 is slidably installed on the rotating shaft 5. Every two locking blocks 10 are slidably installed on a filter mechanism 11. The two locking blocks 10 on each filter mechanism 11 are symmetrical to each other and are located on both sides of an insert block 9. The locking blocks 10 are inserted into the rotating shaft 5. The activated carbon layer 12 is detachably installed inside the device housing 2 on the side near the water outlet 3.

[0025] In this utility model, a centrifugal pump 13 is provided on the water inlet 1. The centrifugal pump 13 is fixedly installed on the water inlet 1. The centrifugal pump 13 on the water inlet 1 provides a stable and adjustable water flow rate, ensuring that the wastewater can enter the treatment device with appropriate pressure and flow rate, which improves the treatment efficiency, effectively prevents pipe blockage, and enhances the stability of system operation.

[0026] In this utility model, a sealing door 14 is provided on the device housing 2. The sealing door 14 is rotatably installed on the top of the device housing 2. The sealing door 14 on the device housing 2 facilitates the inspection, maintenance and cleaning of the internal components of the device housing 2.

[0027] In this utility model, a protective cover 15 is provided on the first servo motor 4. The protective cover 15 is fixedly installed on the outside of the first servo motor 4 and fixedly connected to the outer shell 2 of the device. The protective cover 15 on the first servo motor 4 can effectively protect the first servo motor 4 from the influence of external environmental factors (such as moisture, dust, etc.), extend the service life of the motor, and also increase the overall safety of the equipment, avoiding operational risks caused by accidental contact.

[0028] In this utility model, the filter mechanism 11 is provided with a honeycomb porous structure layer 16, which is fixedly installed inside the filter mechanism 11. The honeycomb porous structure layer 16 on the filter mechanism 11 greatly increases the filtration area and improves the adsorption efficiency of toluene and other pollutants, so that harmful substances in wastewater can be removed more thoroughly, thereby improving the treatment effect and helping to achieve a higher resource recovery rate.

[0029] In this utility model, a mechanical screen 17 is provided on the inlet 1. The mechanical screen 17 is fixedly installed on the inlet 1. The mechanical screen 17 at the inlet 1 can remove larger suspended solids and impurities before the wastewater enters the treatment system, preventing these substances from entering the subsequent treatment units and causing blockage or damage, thereby improving the stability and treatment efficiency of the system and reducing maintenance costs.

[0030] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0031] In this embodiment: During use, wastewater enters the device housing 2 through inlet 1. The mechanical screen 17 at inlet 1 removes larger suspended solids and impurities before the wastewater enters the treatment system, preventing these substances from entering subsequent treatment units and causing blockages or damage. This improves system stability and treatment efficiency, and reduces maintenance costs. The centrifugal pump 13 on inlet 1 provides a stable and adjustable water flow rate, ensuring that wastewater enters the treatment device at appropriate pressure and flow rate, improving treatment efficiency and effectively preventing pipe blockage. It also enhances the stability of system operation. At this time, the first servo motor 4 drives the rotating shaft 5 to rotate, and the first servo motor 4 is protected by a protective cover 15. This effectively protects the first servo motor 4 from external environmental factors (such as moisture and dust), extending its service life and increasing the overall safety of the equipment, avoiding operational risks caused by accidental contact. The rotating shaft 5 drives the filter mechanism 11 to rotate around the rotating shaft 5. The first servo motor 4 can repeatedly rotate in both directions to ensure that the wastewater containing toluene comes into contact with the filter mechanism 11 multiple times, maximizing the adsorption of toluene. Finally, after passing through the activated carbon layer 12, the fine particulate matter is effectively adsorbed. The purified wastewater is then discharged from the outlet 3. The honeycomb porous structure layer 16 on the filter mechanism 11 greatly increases the filtration area, improving the adsorption of toluene and other pollutants. The improved efficiency allows for more thorough removal of harmful substances from wastewater, thus enhancing treatment effectiveness and contributing to higher resource recovery rates. When the adsorption capacity of the filter mechanism 11 reaches saturation, the second servo motor 6 is activated. The second servo motor 6 rotates forward, driving the connecting shaft 7 to rotate. The rotation of the connecting shaft 7 causes the arc-shaped block 8 to rotate around the connecting shaft 7. The movement of the arc-shaped block 8 causes the insertion block 9 to slide along the arc surface on the arc-shaped block 8 towards the inside of the rotating shaft 5. After sliding inward, the insertion block 9 will move its end out from between the two locking blocks 10. As the insertion block 9 moves out, a free space appears between the two locking blocks 10 on the filter mechanism 11, and the locking blocks 10 are no longer firmly inserted into the rotating shaft 5. At this time, the locking blocks 10 can be removed from the rotating shaft 5. The filter mechanism 11 is removed from the rotating shaft 5 and cleaned or replaced. After cleaning or replacement, the filter mechanism 11 is moved back to the designated position on the rotating shaft 5. Then, the second servo motor 6 is started. The second servo motor 6 reverses and drives the connecting shaft 7 to reverse. The reverse rotation of the connecting shaft 7 drives the insert block 9 to slide along the arc surface of the arc block 8 to the outside of the rotating shaft 5 and move to the middle of the two locking blocks 10. During the movement, the two locking blocks 10 are pressed to both sides, so that the locking blocks 10 are inserted into the rotating shaft 5, completing the installation of the filter mechanism 11. The sealing door 14 on the device housing 2 facilitates the inspection, maintenance and cleaning of the internal components of the device housing 2.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for toluene chlorination process, characterized in that, The device includes an inlet (1), a housing (2), an outlet (3), a first servo motor (4), a rotating shaft (5), a second servo motor (6), a connecting shaft (7), an arc-shaped block (8), an insert block (9), a locking block (10), a filter mechanism (11), and an activated carbon layer (12). The inlet (1) is fixedly installed on one side of the housing (2), and the outlet (3) is fixedly installed on the other side of the housing (2). The first servo motor (4) is fixedly installed on the housing (2), and its output end is fixedly connected to one end of the rotating shaft (5). The other end of the rotating shaft (5) is rotatably installed inside the housing (2). The second servo motor (6) is fixedly installed inside the rotating shaft (5). The output end of the servo motor (6) is fixedly connected to one end of the connecting shaft (7), and the other end of the connecting shaft (7) is rotatably installed inside the rotating shaft (5). Multiple arc blocks (8) are fixedly installed on the connecting shaft (7) at equal intervals. One end of each insert (9) is slidably installed on the arc surface of an arc block (8), and the other end of the insert (9) is slidably installed on the rotating shaft (5). Every two clips (10) are slidably installed on a filter mechanism (11). The two clips (10) on each filter mechanism (11) are symmetrical to each other and are located on both sides of an insert (9). The clips (10) are inserted into the rotating shaft (5). The activated carbon layer (12) is detachably installed inside the outer shell (2) of the device near the outlet (3).

2. The wastewater treatment device for toluene chlorination process according to claim 1, characterized in that, A centrifugal pump (13) is provided on the water inlet (1), and the centrifugal pump (13) is fixedly installed on the water inlet (1).

3. The wastewater treatment device for toluene chlorination process according to claim 1, characterized in that, The device housing (2) is provided with a sealing door (14), which is rotatably mounted on the top of the device housing (2).

4. The wastewater treatment device for toluene chlorination process according to claim 1, characterized in that, The first servo motor (4) is provided with a protective cover (15), which is fixedly installed on the outside of the first servo motor (4) and fixedly connected to the outer shell (2) of the device.

5. The wastewater treatment device for toluene chlorination process according to claim 1, characterized in that, The filter mechanism (11) is provided with a honeycomb porous structure layer (16), which is fixedly installed inside the filter mechanism (11).

6. The wastewater treatment device for toluene chlorination process according to claim 1, characterized in that, The water inlet (1) is provided with a mechanical grille (17), which is fixedly installed on the water inlet (1).

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