Device for improving yield of polyester-grade ethylene glycol

Abstract

The utility model belongs to the technical field of polyester grade ethylene glycol production equipment, and particularly relates to a device for improving the yield of polyester grade ethylene glycol, which comprises a kettle body, the inner side wall of the kettle body is fixedly connected with a convex layer, a top cover is arranged above the kettle body, a lifting assembly is arranged above the kettle body, and the lifting assembly is connected with the convex layer. The lifting assembly comprises a hydraulic rod and a filtering shell, the bottom end of the hydraulic rod is fixedly connected with the upper surface of the top cover, the driving end of the hydraulic rod penetrates through the top cover and is fixedly connected with a piston plate, and filtering holes which are annularly distributed are formed in the lower surface of the filtering shell; the resin layer and the filter holes are matched to filter polyester-grade ethylene glycol, and the hydraulic rod drives the piston plate to descend to extrude the polyester-grade ethylene glycol above the resin layer, so that the polyester-grade ethylene glycol can be quickly discharged and filtered, and the phenomenon that the polyester-grade ethylene glycol is relatively thick and cannot be separated is avoided. And the working efficiency is reduced due to low speed during falling and filtering.

Description

Technical Field

[0001] This utility model relates to the technical field of polyester-grade ethylene glycol production equipment, specifically a device for improving the yield of polyester-grade ethylene glycol. Background Technology

[0002] Polyester-grade ethylene glycol is a very important organic chemical. It is a colorless, odorless, viscous liquid with good solubility and stability. Filtration and purification are performed during the production of polyester-grade ethylene glycol, and a resin tower is provided to improve the yield of polyester-grade ethylene glycol.

[0003] The working principle of a resin adsorption tower is very simple: it utilizes resin adsorption materials to adsorb pollutants in wastewater. Resin adsorption materials have strong hydrophilic and lipophilic properties, enabling them to adsorb various organic compounds, heavy metals, and other pollutants. When wastewater passes through the resin adsorption tower, pollutants are adsorbed onto the resin surface, thereby achieving water purification.

[0004] However, when injecting polyester-grade ethylene glycol into the existing equipment, the viscous nature of the ethylene glycol itself prolongs the filtration process and reduces the efficiency.

[0005] Chinese Patent CN220766592U discloses a resin tower for improving the yield of polyester-grade ethylene glycol. The tower includes a shell with a cover attached to its top and two discharge pipes connected to its bottom. The outer side of a spiral blade is movably connected to the inner side of an inlet. A motor is fixedly connected to the bottom of the spiral blade, and a plate is fixedly connected to the outer side of the motor. The top of the plate is fixedly connected to the bottom of the cover, and multiple circular holes are machined on the inner side of the plate. This invention relates to the technical field of polyester-grade ethylene glycol production equipment. Through the cooperation of the spiral blade, motor, and plate, it achieves the dispersed release and unblocking of high-grade polyester glycol, solving the problem in existing devices where the high viscosity of polyester glycol prolongs the filtration process and reduces efficiency.

[0006] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device filters polyester-grade ethylene glycol through a resin layer, but the pressure of polyester-grade ethylene glycol passing through the resin layer is insufficient, resulting in low filtration efficiency; therefore, in order to address the above problems, an apparatus for improving the yield of polyester-grade ethylene glycol is proposed. Utility Model Content

[0007] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this utility model proposes a device for improving the yield of polyester-grade ethylene glycol.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows: The device for improving the yield of polyester-grade ethylene glycol according to this utility model includes a vessel body, a raised layer fixedly connected to the inner side wall of the vessel body, a top cover installed on the top of the vessel body, and a lifting assembly installed on the top of the vessel body. The lifting assembly includes a hydraulic rod and a filter housing. The bottom end of the hydraulic rod is fixedly connected to the upper surface of the top cover, and the driving end of the hydraulic rod penetrates the top cover and is fixedly connected to a piston plate. A resin layer is fixedly disposed inside the filter housing. Filter holes distributed in an annular pattern are opened on the lower surface of the filter housing. A T-shaped connector is fixedly connected to the lower surface of the driving end of the hydraulic rod, and the connector penetrates the resin layer and the filter housing.

[0009] Preferably, the connector includes an upper rod body, the bottom end of which is fixedly connected to a threaded head, and the surface of the threaded head is threadedly connected to a limit nut.

[0010] Preferably, the upper surface of the top cover is fixedly provided with a liquid inlet end, and the bottom end of the vessel is fixedly provided with a liquid outlet end.

[0011] Preferably, the internal space of the vessel is divided into an upper chamber and a lower chamber by a piston plate.

[0012] Preferably, the piston plate has a feeding assembly on its surface, the feeding assembly including a flow channel, the flow channel being formed on the surface of the piston plate, and the flow channel being T-shaped.

[0013] Preferably, a T-shaped sealing plate is inserted into the inside of the flow channel, and a connecting ring is fixedly connected to the outer wall of the sealing plate, with the connecting ring located above the piston plate.

[0014] Preferably, a plurality of spring telescopic rods are fixedly connected to the lower surface of the connecting ring, and the bottom end of the spring telescopic rods is fixedly connected to the upper surface of the piston plate.

[0015] Preferably, a plurality of electric push rods are fixedly connected to the outer wall of the vessel body, and the driving end of the electric push rods is fixedly connected to the lower surface of the top cover.

[0016] The advantages of this utility model are:

[0017] 1. This utility model filters polyester-grade ethylene glycol through the combination of a resin layer and filter holes. The hydraulic rod drives the piston plate to descend and squeeze the polyester-grade ethylene glycol above the resin layer, so that the polyester-grade ethylene glycol can be quickly discharged and filtered. This avoids the problem of reduced work efficiency due to the slow falling speed of polyester-grade ethylene glycol itself, which is relatively viscous. Compared with the prior art, the filtration efficiency of polyester-grade ethylene glycol is accelerated by pressurization.

[0018] 2. This utility model uses an electric push rod to extend and lift the filter housing out of the vessel body. The filter housing can be removed by unscrewing the limit nut, making it convenient to replace the resin layer. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the vessel body of this utility model;

[0022] Figure 3 This is a schematic diagram of the lifting component structure of this utility model;

[0023] Figure 4 This utility model Figure 3 A schematic diagram of structure A;

[0024] Figure 5 This is a schematic diagram of the unfolded structure of the feeding component of this utility model.

[0025] In the diagram: 1. Kettle body; 2. Raised layer; 3. Top cover; 4. Lifting assembly; 41. Hydraulic rod; 42. Filter housing; 43. Resin layer; 44. Filter hole; 45. Piston plate; 46. Connector; 461. Upper rod body; 462. Threaded head; 463. Limit nut; 5. Discharge assembly; 51. Flow channel; 52. Sealing plate; 53. Connecting ring; 54. Spring telescopic rod; 6. Electric push rod; 7. Drain end; 8. Inlet end. Detailed Implementation

[0026] 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 scope of protection of the present utility model.

[0027] Example 1

[0028] Please see Figure 1-4As shown, an apparatus for improving the yield of polyester-grade ethylene glycol includes a vessel body 1, with a raised layer 2 fixedly connected to the inner wall of the vessel body 1. A top cover 3 is installed on the top of the vessel body 1, and a lifting assembly 4 is installed on the top of the vessel body 1. The lifting assembly 4 includes a hydraulic rod 41 and a filter housing 42. The bottom end of the hydraulic rod 41 is fixedly connected to the upper surface of the top cover 3, and the driving end of the hydraulic rod 41 penetrates the top cover 3 and is fixedly connected to a piston plate 45. A resin layer 43 is fixedly disposed inside the filter housing 42, and filter holes 44 distributed in an annular pattern are opened on the lower surface of the filter housing 42. A T-shaped connector 46 is fixedly connected to the lower surface of the driving end of the hydraulic rod 41, and the connector 46 penetrates the resin layer 43 and the filter housing 42.

[0029] Specifically, the raised layer 2 is used to limit the filter housing 42, and the filter housing 42 is used to install the resin layer 43. The resin layer 43 is fixed to the temporal part of the filter housing 42 by bolts. The hydraulic rod 41 drives the piston plate 45 to rise and fall. When the piston plate 45 rises, the filter housing 42 can be taken out of the vessel body 1 through the connector 46. The filter hole 44 is used for polyester-grade ethylene glycol to pass through the filter housing 42 and add polyester-grade ethylene glycol into the interior of the vessel body 1. The polyester-grade ethylene glycol is filtered by the resin layer 43 and the filter hole 44. The hydraulic rod 41 is activated, and the hydraulic rod 41 drives the piston plate 45 to fall and squeeze the polyester-grade ethylene glycol above the resin layer 43, so that the polyester-grade ethylene glycol can be quickly discharged and filtered, avoiding the problem of slow falling speed and reduced work efficiency due to the high viscosity of polyester-grade ethylene glycol.

[0030] The connector 46 includes an upper rod body 461, with a threaded head 462 fixedly connected to the bottom end of the upper rod body 461. A limit nut 463 is threadedly connected to the surface of the threaded head 462. Several electric push rods 6 are fixedly connected to the outer wall of the vessel body 1. The drive end of the electric push rod 6 is fixedly connected to the lower surface of the top cover 3.

[0031] Specifically, the electric push rod 6 is used to adjust the height of the top cover 3. During filtration, the electric push rod 6 retracts to close the top cover 3 onto the vessel body 1. When the resin layer 43 needs to be replaced, the electric push rod 6 extends to lift the top cover 3. The top cover 3 lifts the hydraulic rod 41, which in turn lifts the connector 46. The connector 46 pulls the filter housing 42 out of the vessel body 1. By unscrewing the limit nut 463, the filter housing 42 can be disassembled and removed, thus facilitating the replacement of the resin layer 43.

[0032] The upper surface of the top cover 3 is fixedly provided with a liquid inlet end 8, and the bottom end of the vessel body 1 is fixedly provided with a liquid outlet end 7.

[0033] Specifically, inlet 8 is used to add polyester-grade ethylene glycol, and outlet 7 is used to discharge the filtered polyester-grade ethylene glycol.

[0034] Example 2

[0035] For comparison with Example 1, please refer to Figure 5 As shown, this utility model provides another embodiment. The internal space of the vessel body 1 is divided into an upper chamber and a lower chamber by a piston plate 45. A feeding assembly 5 is provided on the surface of the piston plate 45. The feeding assembly 5 includes a flow channel 51, which is opened on the surface of the piston plate 45 and is T-shaped.

[0036] Specifically, the polyester-grade ethylene glycol added from the inlet end 8 is first temporarily stored in the upper chamber, and then flows into the lower chamber through the flow channel 51 and is pressurized and filtered by the piston plate 45.

[0037] A T-shaped sealing plate 52 is inserted inside the flow channel 51. A connecting ring 53 is fixedly connected to the outer wall of the sealing plate 52. The connecting ring 53 is located above the piston plate 45. Several spring telescopic rods 54 are fixedly connected to the lower surface of the connecting ring 53. The bottom end of the spring telescopic rod 54 is fixedly connected to the upper surface of the piston plate 45.

[0038] Specifically, the connecting ring 53 is used to connect the spring telescopic rod 54 and the sealing plate 52. The elastic force applied to the sealing plate 52 by the spring telescopic rod 54 causes the sealing plate 52 to block the flow channel 51, preventing the polyester-grade ethylene glycol from flowing out of the flow channel 51 when the piston plate 45 squeezes it. After the squeezing is completed, the hydraulic rod 41 retracts, causing the piston plate 45 to rise. This, through the top cover 3, causes the sealing plate 52 to fall, thereby opening the flow channel 51. This allows the polyester-grade ethylene glycol inside the upper chamber to flow into the lower chamber for filtration. The upper chamber temporarily stores the added polyester-grade ethylene glycol, while the lower chamber provides space for pressurized filtration of the polyester-grade ethylene glycol. This allows for continuous addition and filtration of polyester-grade ethylene glycol, improving processing efficiency.

[0039] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Furthermore, appropriate controllers should be selected and electrically connected to the hydraulic rod 41 and the electric push rod 6 according to the actual situation to control the hydraulic rod 41 and the electric push rod 6 to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections are completed according to the sequential working order of each electrical component. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of the electrical control.

[0040] The working principle involves filtering polyester-grade ethylene glycol through the resin layer 43 and filter holes 44. Activating the hydraulic rod 41 causes the piston plate 45 to descend and compress the polyester-grade ethylene glycol above the resin layer 43, allowing for rapid filtration. This avoids the problem of slow filtration speed due to the viscosity of the polyester-grade ethylene glycol, which reduces work efficiency. During filtration, the electric push rod 6 retracts, causing the top cover 3 to close onto the vessel body 1. When the resin layer 43 needs to be replaced, the electric push rod 6 extends, causing the top cover 3 to rise. The top cover 3 then causes the hydraulic rod 41 to rise, which in turn causes the connector 46 to rise. The connector 46 pulls the filter housing 42 out of the vessel body 1. By unscrewing the limit nut 463, the filter housing 42 can be disassembled and removed, facilitating the replacement of the resin layer 43.

[0041] Polyester-grade ethylene glycol added through the inlet 8 is temporarily stored in the upper chamber and then flows into the lower chamber through the flow channel 51, where it is pressurized and filtered by the piston plate 45. The elastic force of the sealing plate 52, applied by the spring telescopic rod 54, blocks the flow channel 51, preventing the polyester-grade ethylene glycol from flowing out of the flow channel 51 when the piston plate 45 squeezes it. After squeezing, the hydraulic rod 41 retracts, causing the piston plate 45 to rise. This, in turn, causes the sealing plate 52 to fall through the top cover 3, opening the flow channel 51 and allowing the polyester-grade ethylene glycol in the upper chamber to flow into the lower chamber for filtration. Thus, the polyester-grade ethylene glycol is temporarily stored in the upper chamber, while the lower chamber provides space for pressurized filtration, enabling continuous addition and filtration of polyester-grade ethylene glycol, thereby improving processing efficiency.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An apparatus for enhancing the yield of polyester grade ethylene glycol comprising a kettle body (1) characterised in that: The inner side wall of the kettle body (1) is fixedly connected with a convex layer (2), the upper portion of the kettle body (1) is provided with a top cover (3), the upper portion of the kettle body (1) is provided with a lifting assembly (4), the lifting assembly (4) comprises a hydraulic rod (41) and a filter shell (42), the bottom end of the hydraulic rod (41) is fixedly connected with the upper surface of the top cover (3), the driving end of the hydraulic rod (41) penetrates through the top cover (3) and is fixedly connected with a piston plate (45), the inside of the filter shell (42) is fixedly provided with a resin layer (43), the lower surface of the filter shell (42) is provided with a plurality of filter holes (44) in annular distribution, the driving end of the hydraulic rod (41) is fixedly connected with a T-shaped connector (46), and the connector (46) penetrates through the resin layer (43) and the filter shell (42).

2. The apparatus for enhancing the yield of polyester grade ethylene glycol according to claim 1, wherein: The connector (46) comprises an upper rod body (461), and the bottom end of the upper rod body (461) is fixedly connected with a threaded head (462).

3. The apparatus for enhancing the yield of polyester grade ethylene glycol of claim 1, wherein: The upper surface of the top cover (3) is fixedly provided with a liquid inlet end (8), and the bottom end of the kettle body (1) is fixedly provided with a liquid outlet end (7).

4. The apparatus for enhancing the yield of polyester grade ethylene glycol of claim 1, wherein: The internal space of the kettle body (1) is divided into an upper chamber and a lower chamber by the piston plate (45).

5. The apparatus for enhancing the yield of polyester grade ethylene glycol of claim 1, wherein: The surface of the piston plate (45) is provided with a discharging assembly (5), the discharging assembly (5) comprises a flow-through channel (51), the flow-through channel (51) is arranged on the surface of the piston plate (45), and the flow-through channel (51) is in a T shape.

6. The apparatus for enhancing the yield of polyester grade ethylene glycol of claim 5, wherein: The inside of the flow-through channel (51) is inserted with a T-shaped sealing plate (52), the outer wall of the sealing plate (52) is fixedly connected with a connecting ring (53), and the connecting ring (53) is located above the piston plate (45).

7. The apparatus for enhancing the yield of polyester grade ethylene glycol of claim 6, wherein: The lower surface of the connecting ring (53) is fixedly connected with a plurality of spring telescopic rods (54), and the bottom end of the spring telescopic rod (54) is fixedly connected with the upper surface of the piston plate (45).

8. The apparatus for enhancing the yield of polyester grade ethylene glycol of claim 1, wherein: The outer side wall of the kettle body (1) is fixedly connected with a plurality of electric push rods (6), and the driving end of the electric push rod (6) is fixedly connected with the lower surface of the top cover (3).

Images