Efficient depolymerization device for dimethyl cyclopentadiene

Abstract

The utility model belongs to the technical field of chemical equipment, and particularly relates to a dimethyl cyclopentadiene efficient depolymerization device which comprises a depolymerization kettle, a material tank, a collection box, a filter plate, a stirring assembly, a feeding pipe, a flow regulating valve and a feeding pipe, a plurality of supporting legs are fixedly installed on the bottom side of the material tank, the bottom ends of the multiple supporting legs are all fixedly installed on the top of the depolymerization kettle, the feeding pipe is fixedly installed at the bottom of the material tank and communicated with the depolymerization kettle, the flow adjusting valve is fixedly installed on the feeding pipe, and the filtering plate is fixedly installed on the inner side wall of the material tank. And the stirring assembly is arranged in the material tank and is matched with the filter plate. The dimethyl cyclopentadiene raw material filtering device is reasonable in design, impurities in dimethyl cyclopentadiene raw materials can be effectively filtered out, meanwhile, the blockage condition caused by the condensation phenomenon of the raw materials in the feeding pipeline due to the low air temperature can be avoided, and the condition that the depolymerization reaction is forced to suspend due to feeding interruption caused by blockage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a high-efficiency depolymerization device for dimethylcyclopentadiene. Background Technology

[0002] Dimethylcyclopentadiene has wide applications in chemical production and other fields, and its depolymerization process is a key step in obtaining the target product and realizing related industrial production. Traditional dimethylcyclopentadiene depolymerization equipment has revealed many problems in actual operation, which seriously restricts the efficient and stable operation of production.

[0003] The feeding stage currently faces severe challenges. The quality of externally sourced dimethylcyclopentadiene feedstock is inconsistent, often containing small amounts of impurity particles. Once these particles enter the depolymerization unit, they not only affect the depolymerization effect but may also cause wear and damage to key internal components. In addition, in some regions, low winter temperatures cause the feedstock to easily condense in the feed pipeline. Even with flow control valves installed, it is difficult to effectively prevent feed blockage. Once a blockage occurs, the feed will be interrupted, forcing the depolymerization reaction to stop. This not only seriously affects production efficiency and increases production costs but may also lead to unstable product quality, failing to meet market demand.

[0004] Meanwhile, there is a lack of effective means to deal with impurities and condensed materials in the raw materials. They are prone to accumulate in the equipment, which not only affects the normal operation of the equipment, but may also cause clogging of the filter components, further reducing production efficiency. Moreover, the existing equipment is not precise enough in controlling the feed rate and cannot flexibly adjust the feed rate according to the actual needs of the depolymerization reaction, which affects the stability of the depolymerization reaction and the quality of the product.

[0005] In conclusion, developing a high-efficiency depolymerization device for dimethylcyclopentadiene that can effectively solve the problem of feed blockage, while achieving thorough mixing of raw materials, precise control of feed rate, and efficient treatment of impurities and condensed materials, is of great practical significance and urgency.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings mentioned in the background section by proposing a highly efficient depolymerization device for dimethylcyclopentadiene.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-efficiency depolymerization device for dimethylcyclopentadiene, comprising a depolymerization kettle, a material tank, a collection box, a filter plate, a stirring assembly, a feeding pipe, a flow regulating valve, and a feed pipe;

[0009] Multiple support legs are fixedly installed on the bottom side of the material tank, and the bottom ends of the multiple support legs are fixedly installed on the top of the depolymerization vessel. The feeding pipe is fixedly installed on the bottom of the material tank and connected to the depolymerization vessel, and the flow regulating valve is fixedly installed on the feeding pipe. The filter plate is fixedly installed on the inner wall of the material tank. The stirring assembly is set inside the material tank and adapted to the filter plate. The collection box is fixedly installed on the outside of the material tank. Multiple connecting pipes one and two are fixedly installed on the collection box, and multiple connecting pipes one and two are connected to the material tank. The annular filter plate is fixedly installed inside the storage box, and connecting pipes one and two are located on the upper and lower sides of the annular filter plate, respectively. The feed pipe is fixedly installed on the top of the material tank.

[0010] Preferably, the stirring assembly includes a motor, an upper scraper, and multiple stirring rods. The motor is fixedly installed on the top of the material tank, and a rotating shaft is axially fixedly connected to the output shaft of the motor. The upper scraper is fixedly installed on the rotating shaft, and multiple stirring rods are fixedly installed on the upper scraper. The outer side of the upper scraper is in contact with the inner wall of the material tank, the inner top wall, and the top side of the filter plate.

[0011] Preferably, the stirring assembly further includes a lower scraper and multiple stirring rods. The lower scraper is fixedly installed on the rotating shaft, and multiple stirring rods are fixedly installed on the lower scraper. All of the multiple stirring rods are radially fixedly installed on the rotating shaft. The lower scraper is in contact with the bottom side of the filter plate and the inner wall below the filter plate in the material tank.

[0012] Preferably, a spiral blade is axially fixedly installed at the bottom end of the rotating shaft, and the spiral blade extends into the feeding pipe.

[0013] Preferably, both the first connecting pipe and the second connecting pipe are arranged at an angle.

[0014] Preferably, the top side of the filter plate is spherical.

[0015] Preferably, the collection box is arranged in a ring shape, and a support ring is fixedly installed between the collection box and the material tank.

[0016] Preferably, a feed hopper is fixedly installed at the top end of the feed pipe.

[0017] Preferably, multiple discharge pipes are fixedly installed on the lower outer side of the collection box, and the inlets of the multiple discharge pipes are flush with the top side of the annular filter plate.

[0018] The beneficial effects of this utility model are:

[0019] By incorporating a depolymerization reactor, a material tank, a collection box, a filter plate, a stirring assembly, a feeding pipe, a flow regulating valve, and an inlet pipe, this device effectively depolymerizes dimethylcyclopentadiene raw material while resolving the issue of easy clogging during feeding. The filter plate filters out impurities in the raw material, preventing them from entering the depolymerization reactor and affecting the depolymerization effect. The filtered impurities and condensed material are then transported to the collection box for further filtration with the help of an annular filter plate, allowing the grate material to flow back into the material tank. The stirring assembly thoroughly agitates the raw material and prevents impurities and condensed material from clogging the filter plate. The combined use of the feeding pipe and flow regulating valve allows for precise control of the raw material feed rate into the depolymerization reactor. Furthermore, the spiral blades prevent clogging during the feeding process, further ensuring the depolymerization effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of a high-efficiency depolymerization device for dimethylcyclopentadiene proposed in this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of a partial three-dimensional structure;

[0023] Figure 3 for Figure 1 A partial sectional view of the structure;

[0024] Figure 4 This is a schematic diagram of the stirring assembly and spiral blades proposed in this utility model.

[0025] In the diagram: 1. Depolymerization vessel; 11. Support leg; 2. Material tank; 21. Feed pipe; 22. Feeding pipe; 221. Flow regulating valve; 23. Filter plate; 3. Collection box; 301. Support ring; 302. Discharge pipe; 31. Annular filter plate; 32. Connecting pipe one; 33. Connecting pipe two; 4. Motor; 41. Rotating shaft; 42. Spiral blade; 43. Upper scraper; 431. Stirring rod one; 44. Lower scraper; 441. Stirring rod two. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Reference Figure 1-4 A high-efficiency depolymerization device for dimethylcyclopentadiene includes a depolymerization vessel 1, a material tank 2, a collection box 3, a filter plate 23, a feeding pipe 22, a flow regulating valve 221, and a feed pipe 21. Multiple support legs 11 are fixedly installed on the bottom side of the material tank 2, and the bottom ends of the multiple support legs 11 are fixedly installed on the top of the depolymerization vessel 1. The feeding pipe 22 is fixedly installed on the bottom of the material tank 2 and connected to the depolymerization vessel 1. The flow regulating valve 221 is fixedly installed on the feeding pipe 22, and the spiral blades 42 extend into the feeding pipe 22. The filter plate 23 is fixedly installed on the inner wall of the material tank 2, and in order to achieve the self-guiding effect of the material, the top side of the filter plate 23 is spherical.

[0028] A motor 4 is fixedly installed on the top of the material tank 2. A rotating shaft 41 is axially fixedly connected to the output shaft of the motor 4. An upper scraper 43 is fixedly installed on the rotating shaft 41. Multiple stirring rods 431 are fixedly installed on the upper scraper 43. The outer side of the upper scraper 43 is in contact with the inner wall, the top inner wall of the material tank 2, and the top side of the filter plate 23. When the rotating shaft 41 rotates, the upper scraper 43 and the stirring rods can be controlled to rotate. This not only cleans the top side of the filter plate 23 and part of the inner wall of the material tank 2, but also cleans the area above the filter plate 23. The material is stirred. A lower scraper 44 is fixedly installed on the rotating shaft 41. Multiple stirring rods 441 are fixedly installed on the lower scraper 44. The multiple stirring rods 441 are radially fixed on the rotating shaft 41. The lower scraper 44 contacts the bottom side of the filter plate 23 and the inner wall below the filter plate 23 in the material tank 2. When the rotating shaft 41 rotates, the lower scraper 44 can be controlled to clean the bottom side of the filter plate 23 and the inner wall of the material tank 2 below the filter plate 23. At the same time, it can stir the material below the filter plate 23.

[0029] In order to avoid blockage of the feeding pipe 22 and to achieve the effect of auxiliary feeding, a spiral blade 42 is axially fixed at the bottom end of the rotating shaft 41.

[0030] The collection box 3 is fixedly installed on the outside of the material tank 2. Multiple connecting pipes 32 and 33 are fixedly installed on the collection box 3, and the multiple connecting pipes 32 and 33 are all connected to the material tank 2. The annular filter plate 31 is fixedly installed inside the collection box, and the connecting pipes 32 and 33 are located on the upper and lower sides of the annular filter plate 31, respectively.

[0031] The feed pipe 21 is fixedly installed on the top of the material tank 2. At the same time, in order to facilitate the addition of materials into the material tank 2, a feed hopper is fixedly installed at the top of the feed pipe 21.

[0032] In this embodiment, both the first connecting pipe 32 and the second connecting pipe 33 are inclined, which facilitates the entry of the condensed material filtered by the filter plate 23 in the material tank 2 into the collection box 3, and at the same time facilitates the return of the material filtered by the annular filter plate 31 to the material tank 2.

[0033] In this embodiment, in order to ensure the connection stability between the collection box 3 and the material tank 2, the collection box 3 is arranged in a ring shape, and a support ring 301 is fixedly installed between the collection box 3 and the material tank 2.

[0034] In this embodiment, in order to discharge the condensed material that has entered the collection box 3 after filtration into the collection box 3 as needed, a plurality of discharge pipes 302 are fixedly installed on the lower outer side of the collection box 3, and the inlets of the plurality of discharge pipes 302 are all flush with the top side of the annular filter plate 31.

[0035] The circuits, electronic components, and module mechanisms involved all employ existing technologies, which can be fully implemented by those skilled in the art, and need no further explanation. The content protected by this application does not involve any improvement to the software, circuits, or methods.

[0036] Working principle: In use, first connect the power supply, and add the dimethylcyclopentadiene raw material into the material tank 2 through the feed pipe 21 and the hopper. The dimethylcyclopentadiene raw material is filtered by the filter plate 23, thereby intercepting impurities and condensed materials. Start the motor 4, which drives the upper scraper 43, lower scraper 44, stirring rod 431 and stirring rod 441 through the rotating shaft 41 to stir the material. At the same time, the upper and lower sides of the filter plate 23 are cleaned. The impurities and condensed materials filtered out by the filter plate 23 are discharged into the collection box 3 through multiple connecting pipes 32. The liquid material is filtered by the annular filter plate 31, and the filtered liquid material is returned to the material tank 2 through the connecting pipe 23. The feeding speed and flow rate of the feeding pipe 22 into the depolymerization vessel 1 are controlled by the flow regulating valve 221. At the same time, the rotating shaft 41 can control the spiral blade 42 to rotate, thereby agitating the material above the flow regulating valve 221 in the feeding pipe 22 and achieving auxiliary discharge. This can effectively avoid the situation where the feeding pipe 22 is prone to blockage when feeding, and avoid the situation where the feeding is interrupted and the depolymerization reaction is forced to stop, thus greatly improving the efficiency of depolymerization.

[0037] The above provides a detailed description of the high-efficiency depolymerization device for dimethylcyclopentadiene provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A device for efficient depolymerization of dimethylcyclopentadiene, characterized by, The device comprises a depolymerization kettle (1), a material tank (2), a collecting box (3), a filter plate (23), a stirring assembly, a feeding pipe (22), a flow regulating valve (221) and a feeding pipe (21). The bottom side of the material tank (2) is fixedly installed with a plurality of supporting legs (11), the bottom ends of the supporting legs (11) are fixedly installed on the top of the depolymerization kettle (1), the feeding pipe (22) is fixedly installed on the bottom of the material tank (2) and communicates with the depolymerization kettle (1), the flow regulating valve (221) is fixedly installed on the feeding pipe (22), the filter plate (23) is fixedly installed on the inner side wall of the material tank (2), the stirring assembly is arranged in the material tank (2) and is adapted to the filter plate (23), the collecting box (3) is fixedly installed on the outer side of the material tank (2), a plurality of communication pipes one (32) and communication pipes two (33) are fixedly installed on the collecting box (3) and communicate with the material tank (2), the annular filter plate (31) is fixedly installed in the collecting box, and the communication pipes one (32) and the communication pipes two (33) are located on the upper and lower sides of the annular filter plate (31), respectively, and the feeding pipe (21) is fixedly installed on the top of the material tank (2).

2. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 1, wherein: The stirring assembly comprises a motor (4), an upper scraping frame (43) and a plurality of stirring rods one (431), the top of the material tank (2) is fixedly installed with the motor (4), the output shaft of the motor (4) is axially fixedly connected with a rotating shaft (41), the rotating shaft (41) is fixedly installed with the upper scraping frame (43), the upper scraping frame (43) is fixedly installed with the plurality of stirring rods one (431), and the outer side of the upper scraping frame (43) is in contact with the inner side wall, the top inner wall of the material tank (2) and the top side of the filter plate (23).

3. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 2, wherein: The stirring assembly further comprises a lower scraping frame (44) and a plurality of stirring rods two (441), the rotating shaft (41) is fixedly installed with the lower scraping frame (44), the lower scraping frame (44) is fixedly installed with the plurality of stirring rods two (441), the plurality of stirring rods two (441) are radially fixedly installed on the rotating shaft (41), and the lower scraping frame (44) is in contact with the bottom side of the filter plate (23) and the inner wall below the filter plate (23) in the material tank (2).

4. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 2, wherein: The bottom end of the rotating shaft (41) is axially fixedly installed with a helical blade (42), and the helical blade (42) extends into the feeding pipe (22).

5. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 1, wherein: The communication pipes one (32) and the communication pipes two (33) are both arranged in an inclined manner.

6. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 1, wherein: The top side of the filter plate (23) is arranged in a spherical manner.

7. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 1, wherein: The collecting box (3) is arranged in an annular manner, and a supporting ring (301) is fixedly installed between the collecting box (3) and the material tank (2).

8. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 1, wherein: The top end of the feeding pipe (21) is fixedly installed with a feeding hopper.

9. The apparatus for efficient depolymerization of dimethylcyclopentadiene according to claim 1, wherein: A plurality of discharge pipes (302) are fixedly installed on the lower position of the outer side of the collecting box (3), and the feeding ports of the discharge pipes (302) are flush with the top side of the annular filter plate (31).

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