Equipment for purifying and regenerating DMT

Abstract

The utility model relates to equipment for purifying and regenerating DMT, which comprises a support frame, the top end of the right side of the support frame is fixedly connected with front and back opposite support rods, the inner sides of the support rods are fixedly connected with a storage tank, the outer side of the top end of the storage tank is fixedly connected with front and back opposite cover plates, and the top ends of the cover plates are fixedly connected with front and back opposite motors. The bottom end of the motor is fixedly connected with a connecting rod, and the bottom end of the connecting rod is fixedly connected with a fairing. According to the equipment for purifying and regenerating DMT provided by the utility model, the mixing component is driven by the motor to rotate in the storage tank, so that a DMT solution on the inner side of the storage tank is stirred and mixed, the solution is ensured to be uniformly distributed, layering is avoided, and the extraction efficiency is improved; contact of solute and solvent is promoted, reaction rate is increased, and product purity and yield are improved; solid impurity precipitation is prevented, and the equipment blockage risk is reduced; substance migration is accelerated, and the extraction and separation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of high - efficiency purification of recycled DMT, and specifically relates to a device for purifying recycled DMT. Background Technique

[0002] Devices for purifying recycled DMT usually combine multiple separation and purification techniques to efficiently process waste polyester textiles and recover usable DMT. The device generally includes a pretreatment unit for cleaning and crushing waste polyester to improve subsequent extraction efficiency; a dissolution and extraction unit for extracting DMT from polyester using appropriate organic solvents; a separation unit for separating solid impurities in the extract using filtration, precipitation, or centrifugation methods; a rectification and crystallization unit for further purifying the extract to separate DMT from other components; and a waste liquid treatment unit to ensure proper treatment of the generated waste liquid, thus meeting environmental protection requirements. The design of this device aims to improve the recovery rate, reduce costs, and minimize environmental impact. With the progress of technology, the automation and intelligence levels of the device are continuously improved, further optimizing the regeneration process of DMT.

[0003] After retrieval, the existing patent (publication number: CN116891411A) discloses a new route for purifying recycled DMT. In this invention, layered double - metal hydroxide and porous dopamine are used as adsorbents, and tannic acid is used as an adhesive and loaded on a cellulose membrane to prepare a filtration membrane with dye - adsorption function. At the same time, combined with an industrial filtration membrane, a multi - layer series filtration system is formed to preliminarily purify recycled DMT. Subsequently, a coupled technology of melt crystallization and rectification is used to further purify recycled DMT, forming high - purity and high - quality recycled DMT, expanding the application field of recycled DMT, and laying a foundation for the high - value utilization of downstream recycled DMT. The advantages of this invention are effectively solving the technical problem of difficult purification of recycled DMT, and will strongly promote the application and development of recycled DMT.

[0004] However, during the actual use of the above - mentioned scheme, the DMT solution is directly stored in a storage tank, and during subsequent purification, the solution in the storage tank is directly pumped out by a transfer pump and transported into the filtration unit for filtration. However, long - term storage may cause component stratification, and solid impurities or unreacted polyester precipitate at the bottom of the tank, increasing the risk of equipment blockage. In addition, it affects the purity and yield of the product, and at the same time, the mass transfer rate slows down, reducing the efficiency of the extraction and separation process.

[0005] Therefore, the utility model provides a device for purifying recycled DMT. Content of the Utility Model

[0006] In view of the above problems, this application provides a device for purifying recycled DMT, which is used to solve the technical problem of preventing solid impurities from accumulating at the bottom of the storage tank when storing the DMT solution.

[0007] To achieve the above object, in a first aspect, the present application provides an apparatus for purifying and regenerating DMT, including a support frame. At the right top end of the support frame, there are fixedly connected front and rear opposite support rods. Inside the support rods, there is a storage tank fixedly connected. At the outer side of the top end of the storage tank, there are fixedly connected front and rear opposite cover plates. At the top end of the cover plates, there are fixedly connected front and rear opposite motors. At the bottom end of the motors, there is a connecting rod fixedly connected. At the bottom end of the connecting rod, there is a fairing fixedly connected. Inside the bottom end of the motor, there is a mixing assembly.

[0008] As an implementation manner of the present utility model, the mixing assembly includes a transmission frame. The output end of the motor is fixedly connected with the transmission frame. At the bottom end of the transmission frame, there is a stirring blade fixedly connected. The transmission frame is rotationally connected with the fairing, and the stirring blade is rotationally connected with the fairing.

[0009] As an implementation manner of the present utility model, at the left top end of the support frame, a first delivery pump is fixedly connected at the same time. A purification unit is arranged on the left side of the first delivery pump.

[0010] As an implementation manner of the present utility model, at the front right side of the first delivery pump, a connecting pipe is fixedly connected. At the top right end of the connecting pipe, a second connection flange is fixedly connected. At the top end of the second connection flange, a quick-release assembly is arranged.

[0011] As an implementation manner of the present utility model, the quick-release assembly includes a limit sleeve. The limit sleeve is fixedly connected to the top end of the second connection flange. Inside the upper end of the limit sleeve, evenly distributed engaging balls are slidably connected. At the outer side of the bottom end of the limit sleeve, a spring is fixedly connected. At the top end of the spring, a limit ring is fixedly connected. The limit ring is engaged with the engaging balls. At the outer side of the limit ring, a sliding sleeve is fixedly connected. Inside the top end of the sliding sleeve, an extension chamber is opened. Inside the limit sleeve, a connection sleeve is slidably connected. At the outer side of the middle end of the connection sleeve, a card slot is opened. The card slot is engaged with the engaging balls.

[0012] As an implementation manner of the present utility model, at the top end of the connection sleeve, a first connection flange is fixedly connected. At the outer side of the bottom end of the first connection flange, a threaded sleeve is fixedly connected. The threaded sleeve is threadedly connected with the sliding sleeve.

[0013] As an implementation manner of the present utility model, the first connection flange is fixedly connected to the bottom end of the storage tank.

[0014] As an implementation manner of the present utility model, a rubber layer is arranged at the bottom end of the support frame.

[0015] Different from the prior art, the beneficial effects of the technical solution of the present application are as follows:

[0016] 1. The equipment for purifying and regenerating DMT according to the present utility model drives a mixing component to rotate in a storage tank through a motor, thereby stirring and mixing the DMT solution inside the storage tank, ensuring uniform distribution of the solution, avoiding stratification, and improving the extraction efficiency; promoting contact between the solute and the solvent, enhancing the reaction rate, and improving the purity and yield of the product; preventing precipitation of solid impurities and reducing the risk of equipment blockage; accelerating mass transfer and improving the extraction and separation efficiency. At the same time, by adopting the V-shaped stirring method, the mixing efficiency is improved.

[0017] 2. The equipment for purifying and regenerating DMT according to the present utility model is provided with quick-release components, second connecting flanges, first connecting flanges, and threaded sleeves between various unit components of the equipment, so that each unit in the equipment can be quickly disassembled and assembled. The quick-release design facilitates quick disassembly and assembly, simplifies daily maintenance and repair, reduces downtime. Secondly, users can flexibly adjust the equipment configuration to meet different production requirements, while reducing labor costs and improving work efficiency. In addition, the quick-release components also enhance safety, can quickly handle faults, and reduce potential safety hazards.

[0018] The above relevant description of the utility model content is only an overview of the technical solution of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of this application, and then can be implemented according to the content recorded in the description and the drawings, and in order to make the above objects, other objects, features, and advantages of this application more easily understood, the following is described in conjunction with the specific embodiments of this application and the drawings. Brief Description of the Drawings

[0019] The drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the specific embodiments of this application and other related contents, and should not be considered as a limitation to this application.

[0020] In the drawings of the specification:

[0021] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is the partial three-dimensional structure schematic diagram and partial enlarged view of the storage tank of the present utility model;

[0023] Figure 3 is the cross-sectional structure schematic diagram of the storage tank of the present utility model;

[0024] Figure 4 is the partial three-dimensional structure schematic diagram and partial enlarged view of the transmission frame of the present utility model;

[0025] Figure 5 is the cross-sectional structure schematic diagram and partial enlarged view of the sliding sleeve of the present utility model;

[0026] The reference numerals involved in the above-mentioned drawings are explained as follows:

[0027] 1. Support frame; 11. First delivery pump; 12. Purification unit; 2. Support rod; 21. Storage tank; 22. Cover plate; 23. Motor; 24. Connecting rod; 25. Fairing; 26. Transmission frame; 27. Stirring blade; 3. First connection flange; 31. Threaded sleeve; 32. Connecting sleeve; 33. Card slot; 34. Sliding sleeve; 35. Limiting ring; 36. Limiting sleeve; 37. Engaging ball; 38. Spring; 39. Second connection flange; 310. Range extension chamber; 4. Connecting pipe. Detailed implementation manners

[0028] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, the following is a detailed description in conjunction with the specific examples listed and the accompanying drawings. The examples described in this article are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0029] Referring to "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of this application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0030] Unless otherwise defined, the meanings of the technical terms used in this article are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of relevant terms in this article is only for describing specific embodiments and is not intended to limit this application.

[0031] In the description of this application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships can exist. For example, X and / or Y means: there is X, there is Y, and there is both X and Y at the same time. In addition, the character " / " in this article generally represents an "or" logical relationship between the associated objects before and after.

[0032] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary-secondary or order relationship between these entities or operations.

[0033] Without further limitation, in this application, the terms "including", "comprising", "having" or other similar expressions are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product including the said elements. Thus, a process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0034] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding" are understood not to include the recited number; expressions such as "above", "below", "within" are understood to include the recited number. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0035] In the description of the embodiments of this application, the spatially related terms used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the drawings. This is only for the convenience of describing the specific embodiments of this application or for the reader's understanding, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of this application.

[0036] Unless otherwise clearly specified or limited, in the description of the embodiments of this application, the terms "installed", "connected", "joined", "fixed", "set", etc. should be understood in a broad sense. For example, the said "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art to which this application pertains, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0037] According to some embodiments of this application, please refer to Figures 1 to 5As shown in the figure, a device for purifying and regenerating DMT according to the present utility model includes a support frame 1. At the right top end of the support frame 1, there are front and rear opposite support rods 2 fixedly connected. The support frame 1 supports and fixes the support rods 2. Inside the support rods 2, there is a storage tank 21 fixedly connected. The support rods 2 support and fix the storage tank 21. Outside the top end of the storage tank 21, there are front and rear opposite cover plates 22 fixedly connected. The storage tank 21 supports and fixes the cover plates 22. At the top end of the cover plates 22, there are front and rear opposite motors 23 fixedly connected. The cover plates 22 support and fix the motors 23. At the bottom end of the motor 23, there is a connecting rod 24 fixedly connected. The motor 23 fixes the connecting rod 24. At the bottom end of the connecting rod 24, there is a fairing 25 fixedly connected. The connecting rod 24 connects the motor 23 and the fairing 25. Inside the bottom end of the motor 23, there is a mixing assembly.

[0038] The mixing assembly includes a transmission frame 26. The output end of the motor 23 is fixedly connected with the transmission frame 26. The motor 23 drives the transmission frame 26 to rotate. The DMT solution inside the storage tank 21 is mixed by the transmission frame 26. At the bottom end of the transmission frame 26, there is a stirring blade 27 fixedly connected. The transmission frame 26 fixes the stirring blade 27 and at the same time drives the stirring blade 27 to rotate. The transmission frame 26 is rotatably connected with the fairing 25, and the stirring blade 27 is rotatably connected with the fairing 25. The fairing 25 limits the bottom end of the transmission frame 26 and at the same time protects the stirring blade 27. The transmission frame 26 drives the stirring blade 27 to rotate at the bottom end of the storage tank 21, thereby strengthening the mixing of the solution at the bottom end of the storage tank 21.

[0039] At the left top end of the support frame 1, there is also a first delivery pump 11 fixedly connected. The support frame 1 supports and fixes the first delivery pump 11. On the left side of the first delivery pump 11, there is a purification unit 12.

[0040] At the front right end of the first delivery pump 11, there is a connecting pipe 4 fixedly connected. The support frame 1 fixes the connecting pipe 4. At the right top end of the connecting pipe 4, there is a second connecting flange 39 fixedly connected. The connecting pipe 4 supports and fixes the second connecting flange 39. At the top end of the second connecting flange 39, there is a quick-release assembly.

[0041] The quick-release component includes a limit sleeve 36. The top of the second connection flange 39 is fixedly connected to the limit sleeve 36, and the limit sleeve 36 is fixed by the second connection flange 39. Inside the upper end of the limit sleeve 36, evenly distributed engaging balls 37 are slidably connected, and the limit sleeve 36 limits the engaging balls 37. On the outer side of the bottom end of the limit sleeve 36, a spring 38 is fixedly connected, and the bottom end of the spring 38 is fixed by the limit sleeve 36. The top end of the spring 38 is fixedly connected to a limit ring 35, and the limit ring 35 is supported and fixed by the spring 38. The limit ring 35 is engaged with the engaging balls 37. On the outer side of the limit ring 35, a sliding sleeve 34 is fixedly connected, and the limit ring 35 is fixed by the sliding sleeve 34. Inside the top end of the sliding sleeve 34, an extension chamber 310 is provided. By providing the extension chamber 310 on the inner wall of the top end of the sliding sleeve 34, the movement distance of the engaging balls 37 moving outward can be increased. Inside the limit sleeve 36, a connection sleeve 32 is slidably connected, and the limit sleeve 36 limits the connection sleeve 32. On the outer side of the middle end of the connection sleeve 32, a card slot 33 is provided, and the card slot 33 is engaged with the engaging balls 37. By moving the limit ring 35 up and down, the movement stroke of the engaging balls 37 is controlled, so as to control the engagement of the engaging balls 37 with the card slot 33, and realize the quick disassembly and assembly between the limit sleeve 36 and the connection sleeve 32.

[0042] The top end of the connection sleeve 32 is fixedly connected to a first connection flange 3, and the first connection flange 3 is fixed by the connection sleeve 32. On the outer side of the bottom end of the first connection flange 3, a threaded sleeve 31 is fixedly connected, and the first connection flange 3 is fixed by the threaded sleeve 31. The threaded sleeve 31 is threadedly connected to the sliding sleeve 34. By the cooperation of the external thread on the outer side of the threaded sleeve 31 and the internal thread on the inner side of the top end of the sliding sleeve 34, the sliding sleeve 34 and the limit ring 35 are driven to move up and down, and at the same time, the overall connection stability is increased.

[0043] The first connection flange 3 is fixedly connected to the bottom end of the storage tank 21, and the first connection flange 3 is fixed by the storage tank 21.

[0044] A rubber layer is provided at the bottom end of the support frame 1. By providing the rubber layer at the bottom end of the support frame 1, the overall equipment can be buffered, the influence of vibration on the equipment can be reduced, and at the same time, the rubber has insulation properties to avoid the influence of external leakage on the equipment and cause danger.

[0045] Working principle: When the equipment for purifying and regenerating DMT is operating, first, the motors 23 on both sides drive the stirring blades 27 to rotate in the storage tank 21 through the transmission frame 26, so as to stir and mix the DMT solution inside the storage tank 21, avoid precipitation of solid impurities, and facilitate subsequent filtration of the solution. Then, the first transfer pump 11 extracts the solution in the storage tank 21 through the connecting pipe 4 and transports it into the purification unit 12 for purification treatment. During daily maintenance, when it is necessary to disassemble each unit component, only the sliding sleeve 34 on the quick-release component between each unit component needs to be rotated. Through the cooperation of the external thread on the outer side of the threaded sleeve 31 and the internal thread on the inner side of the top end of the sliding sleeve 34, the sliding sleeve 34 and the limit ring 35 are driven to move up and down. During the downward movement of the sliding sleeve 34 and the limit ring 35, the limit ring 35 no longer presses the engaging ball 37, enabling the engaging ball 37 to move outward, thus canceling the engagement with the card slot 33, and the connecting sleeve 32 can be pulled out from the limit sleeve 36 to complete the disassembly. During installation, only the connecting sleeve 32 needs to be inserted into the limit sleeve 36, and the sliding sleeve 34 is rotated in the reverse direction. Through the cooperation of the external thread on the outer side of the threaded sleeve 31 and the internal thread on the inner side of the top end of the sliding sleeve 34, the sliding sleeve 34 and the limit ring 35 are driven to move upward, so as to press the engaging ball 37 through the limit ring 35, forcing the engaging ball 37 to move inward to engage with the card slot 33, thereby fixing the connecting sleeve 32 and the limit sleeve 36.

[0046] Those skilled in the art can understand that although some of the embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and the description of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An apparatus for purifying and regenerating DMT, characterized in that, It includes a support frame. At the right top end of the support frame, there are front and rear opposite support rods fixedly connected. Inside the support rods, there is a storage tank fixedly connected. At the outer side of the top end of the storage tank, there are front and rear opposite cover plates fixedly connected. At the top end of the cover plates, there are front and rear opposite motors fixedly connected. At the bottom end of the motors, there is a connecting rod fixedly connected. At the bottom end of the connecting rod, there is a fairing fixedly connected. Inside the bottom end of the motor, there is a mixing assembly.

2. The apparatus for purifying and regenerating DMT according to claim 1, characterized in that, The mixing assembly includes a transmission frame. The output end of the motor is fixedly connected with the transmission frame. At the bottom end of the transmission frame, there are stirring blades fixedly connected. The transmission frame is rotationally connected with the fairing. The stirring blades are rotationally connected with the fairing.

3. The equipment for purifying and regenerating DMT according to claim 2, characterized in that, At the left top end of the support frame, a first transfer pump is fixedly connected at the same time. A purification unit is arranged on the left side of the first transfer pump.

4. The equipment for purifying and regenerating DMT according to claim 3, characterized in that, At the front right side of the first transfer pump, a connecting pipe is fixedly connected. At the right top end of the connecting pipe, a second connecting flange is fixedly connected. A quick-release assembly is arranged at the top end of the second connecting flange.

5. The equipment for purifying and regenerating DMT according to claim 4, characterized in that, The quick-release assembly includes a limiting sleeve. The limiting sleeve is fixedly connected at the top end of the second connecting flange. Inside the upper end of the limiting sleeve, evenly distributed engaging balls are slidably connected. At the outer side of the bottom end of the limiting sleeve, a spring is fixedly connected. At the top end of the spring, a limiting ring is fixedly connected. The limiting ring is engaged with the engaging balls. At the outer side of the limiting ring, a sliding sleeve is fixedly connected. An extension chamber is opened at the inner side of the top end of the sliding sleeve. Inside the limiting sleeve, a connecting sleeve is slidably connected. At the outer side of the middle end of the connecting sleeve, a clamping groove is opened. The clamping groove is engaged with the engaging balls.

6. The equipment for purifying and regenerating DMT according to claim 5, characterized in that, At the top end of the connecting sleeve, a first connecting flange is fixedly connected. At the outer side of the bottom end of the first connecting flange, a threaded sleeve is fixedly connected. The threaded sleeve is threadedly connected with the sliding sleeve.

7. An apparatus for purifying and regenerating DMT according to claim 6, characterized in that, The first connecting flange is fixedly connected with the bottom end of the storage tank.

8. The apparatus for purifying and regenerating DMT according to claim 6, wherein A rubber layer is arranged at the bottom end of the support frame.

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