CN216877851U

CN216877851U - High-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran

Info

Publication number: CN216877851U
Application number: CN202220299784.2U
Authority: CN
Inventors: 王丽丽; 张明; 关健
Original assignee: Tianjin Jingfen Technology Development Co ltd
Current assignee: Tianjin Jingfen Technology Development Co ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-07-05
Anticipated expiration: 2032-02-15

Abstract

The utility model discloses an efficient recovery device for degradable plastic PBAT byproduct tetrahydrofuran, which belongs to the technical field of chemical production and comprises a box body and a condensation component, wherein an evaporation component is fixedly connected to the lower surface of the inner wall of the box body, a collection tank is fixedly connected to the lower surface of the inner wall of the box body, a motor is fixedly connected to the upper surface of the evaporation component, and an air entraining component is arranged on the upper surface of the evaporation component. This high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran, through setting up the motor, the heating plate, evaporation subassembly, the rotary rod, the bleed subassembly, the condensation subassembly, condenser tube and collection tank, the drive of motor, make the area of contact increase of heating plate and solvent, it is more even to make the solvent be heated, condenser tube can cool off tetrahydrofuran steam in advance simultaneously, the service pressure to the condensation subassembly has been reduced, make distillation quality improve to some extent, holistic cooling efficiency has also been guaranteed simultaneously.

Description

High-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran

Technical Field

The utility model belongs to the technical field of chemical production, and particularly relates to a high-efficiency recovery device for degradable plastic PBAT byproduct tetrahydrofuran.

Background

Tetrahydrofuran is one of strong polar ethers, is a complete hydrogenation product of aromatic compound furan, is used as a medium-polarity solvent in chemical reaction and extraction, is colorless volatile liquid, and if the solvent is not recycled, the solvent is wasted and can threaten the life safety of people, and tetrahydrofuran has the characteristics of low boiling point and volatility, and during recycling, a distillation mode is mostly adopted, but a recycling device in the prior art is not uniformly heated during distillation, so that the distillation quality is poor, the conventional tetrahydrofuran recycling device is slow in distillation, and the cooling efficiency is not ideal enough, therefore, an efficient recycling device capable of degrading PBAT byproduct tetrahydrofuran is needed to improve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides an efficient recovery device for degradable plastic PBAT byproduct tetrahydrofuran, which solves the problems that the recovery device in the prior art is uneven in heating during distillation, so that the distillation quality is poor, the existing tetrahydrofuran recovery device is slow in distillation, and the cooling efficiency is not ideal enough.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran, includes box and condensation subassembly, the lower fixed surface of box inner wall is connected with evaporation subassembly, the lower fixed surface of box inner wall is connected with the holding vessel, evaporation subassembly's last fixed surface is connected with the motor, evaporation subassembly's upper surface is provided with the bleed subassembly.

The surface of motor is provided with first bevel gear, the surface meshing of first bevel gear has second bevel gear, the lower fixed surface of second bevel gear is connected with the movable rod, the lower fixed surface of movable rod is connected with the rotary rod, the surface of rotary rod is provided with the heating plate, the back of bleed subassembly is provided with the second connecting pipe.

The other end of the second connecting pipe is communicated with the upper surface of the condensing assembly, the lower surface of the condensing assembly is communicated with the upper surface of the collecting tank through a collecting pipe, a condensing sleeve is arranged on the lower surface of the second connecting pipe, and the lower surface of the condensing sleeve is communicated with the front surface of the collecting pipe through a first connecting pipe.

As a further scheme of the utility model: the front of box is provided with the feed liquor pipe, the back of feed liquor pipe is linked together with evaporation assembly's front, the front of box is provided with the drain pipe, the back of drain pipe is linked together with evaporation assembly's front.

As a further scheme of the utility model: the right side of the box body is provided with a box door, and the right side of the box door is fixedly connected with a handle.

As a further scheme of the utility model: the front of box is provided with the ventilation net, the right flank fixedly connected with fluid-discharge tube of collection tank.

As a further scheme of the utility model: the upper surface of evaporation subassembly is provided with and shows the liquid pipe, the output of motor and bleed subassembly's right side fixed connection.

As a further scheme of the utility model: the upper surface of evaporation subassembly is provided with the bearing, the surface of movable rod cup joints with the inner wall of bearing.

As a further scheme of the utility model: the surface of collecting pipe is provided with the collecting valve, the surface of collection tank is provided with the observation window.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

1. the high-efficiency recovery device of degradable plastic PBAT byproduct tetrahydrofuran is characterized in that a motor, a heating sheet, an evaporation assembly, a rotary rod, an air entraining assembly, a condensation sleeve and a collection tank are arranged, tetrahydrofuran solvent is firstly discharged into the evaporation assembly through a liquid inlet pipe, the rotation of the motor is controlled, the heating sheet is driven to rotate at the same time, the heating sheet and the solvent are heated, tetrahydrofuran is evaporated out of the solvent, the motor drives the air entraining assembly to work, tetrahydrofuran evaporated in advance enters a second connecting pipe through the air entraining assembly, the condensation sleeve can cool tetrahydrofuran steam in advance, then the tetrahydrofuran steam flows into the collection pipe through a first connecting pipe, then the tetrahydrofuran steam enters the condensation assembly to be cooled, a liquid collecting valve is opened, the tetrahydrofuran enters the collection tank through a collecting pipe, and finally the tetrahydrofuran is collected through a liquid discharge pipe, the drive of motor for the area of contact increase of heating plate and solvent, make the solvent be heated more evenly, the condensation sleeve pipe can cool off tetrahydrofuran steam in advance simultaneously, has reduced the service pressure to the condensation subassembly, makes the distillation quality improve to some extent, has also guaranteed holistic cooling efficiency simultaneously.

2. This high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran through setting up ventilation net and observation window, when using this high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran, tetrahydrofuran belongs to the low toxicity, and the setting up of ventilation net has guaranteed that the inside gas of box is unobstructed to avoided its harmful gas concentration to gather and caused the injury to the human body, the observation window then conveniently is the condition that the user knows the collection tank inside.

3. This high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran through setting up chamber door and handle, when using this high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran, can conveniently inspect and maintain the inside machinery of box through the chamber door, and the handle can make the user make things convenient for laborsavingly more to the pulling of chamber door.

Drawings

FIG. 1 is a schematic structural diagram of a cross-sectional perspective view of a box body according to the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic perspective view of an evaporation assembly according to the present invention;

FIG. 4 is a schematic perspective view of the motor of the present invention;

in the figure: 1. a box body; 2. a handle; 3. a box door; 4. a ventilation net; 5. a liquid inlet pipe; 6. a liquid outlet pipe; 7. an evaporation assembly; 8. a motor; 9. a liquid discharge pipe; 10. a collection tank; 11. a liquid collection valve; 12. a condensing assembly; 13. a liquid indicating pipe; 14. a bleed air assembly; 15. a first connecting pipe; 16. a condensation sleeve pipe 17 and a second connecting pipe; 18. a collection pipe; 19. an observation window; 20. a movable rod; 21. a first bevel gear; 22. a second bevel gear; 23. a bearing; 24. rotating the rod; 25. and (4) heating the sheet.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the present invention provides a technical solution: the utility model provides a high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran, including box 1 and condensation unit 12, the lower fixed surface of box 1 inner wall is connected with evaporation unit 7, the lower fixed surface of box 1 inner wall is connected with holding vessel 10, evaporation unit 7's last fixed surface is connected with motor 8, evaporation unit 7's upper surface is provided with bleed subassembly 14, through setting up bleed subassembly 14, when using this high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran, the tetrahydrofuran steam in evaporation unit 7 can smooth transmission to the second connecting pipe 17 in having guaranteed in setting up of bleed subassembly 14, thereby make things convenient for follow-up cooling treatment.

The surface of motor 8 is provided with first bevel gear 21, the surface engagement of first bevel gear 21 has second bevel gear 22, the lower fixed surface of second bevel gear 22 is connected with movable rod 20, through setting up first bevel gear 21 and second bevel gear 22, when using this degradable plastics PBAT byproduct tetrahydrofuran's high-efficient recovery unit, mutually supporting of first bevel gear 21 and second bevel gear 22 under the drive of motor 8, thereby it is more firm smooth to have guaranteed the transmission process, alright realize that the solvent is heated more evenly, the lower fixed surface of movable rod 20 is connected with rotary rod 24, the surface of rotary rod 24 is provided with heating plate 25, the back of bleed subassembly 14 is provided with second connecting pipe 17.

The other end of second connecting pipe 17 is linked together with the upper surface of condensation subassembly 12, the lower surface of condensation subassembly 12 passes through collecting pipe 18 with the upper surface of holding vessel 10 and is linked together, the lower surface of second connecting pipe 17 is provided with condenser sleeve 16, through setting up condenser sleeve 16, when using this degradable plastics PBAT byproduct tetrahydrofuran's high-efficient recovery unit, condenser sleeve 16 can cool off tetrahydrofuran steam in advance, thereby guaranteed the result of use to condensation subassembly 12, condenser sleeve 16's lower surface is linked together through first connecting pipe 15 with collecting pipe 18's front.

Specifically, as shown in fig. 1 and 2, the front of box 1 is provided with feed liquor pipe 5, the back of feed liquor pipe 5 is linked together with evaporation assembly 7's front, box 1's front is provided with drain pipe 6, through setting up feed liquor pipe 5 and drain pipe 6, when using this degradable plastics PBAT byproduct tetrahydrofuran's high-efficient recovery unit, the smooth entering evaporation assembly 7 of tetrahydrofuran solvent has been guaranteed in feed liquor pipe 5's setting, can carry out processing on next step through drain pipe 6 person of facilitating the use to remaining solvent after the tetrahydrofuran solvent evaporation, the back of drain pipe 6 is linked together with evaporation assembly 7's front, box 1's right flank is provided with chamber door 3, the right flank fixedly connected with handle 2 of chamber door 3, box 1's front is provided with ventilation net 4, the right flank fixedly connected with fluid-discharge tube 9 of collection tank 10.

Specifically, as shown in fig. 3 and 4, a liquid indicating pipe 13 is disposed on the upper surface of the evaporation assembly 7, by disposing the liquid indicating pipe 13, when the device for efficiently recovering degradable plastic PBAT byproduct tetrahydrofuran is used, the liquid indicating pipe 13 can help a user to clearly understand the reaction of solvent evaporation in the evaporation assembly 7, thereby facilitating subsequent processing and other operations, the output end of the motor 8 is fixedly connected with the right side surface of the air entraining assembly 14, a bearing 23 is disposed on the upper surface of the evaporation assembly 7, the outer surface of the movable rod 20 is sleeved with the inner wall of the bearing 23, by disposing the bearing 23 and the movable rod 20, when the device for efficiently recovering degradable plastic PBAT byproduct tetrahydrofuran is used, the bearing 23 supports and limits the movable rod 20, under the driving of the motor 8, thereby ensuring that the movable rod 20 can smoothly rotate on the inner wall of the bearing 23, and a liquid collecting valve 11 is disposed on the outer surface of the collecting pipe 18, the outer surface of the collection tank 10 is provided with a viewing window 19.

The working principle of the utility model is as follows:

s1, when the efficient recycling device for the degradable plastic PBAT byproduct tetrahydrofuran needs to be used, firstly, a user discharges a tetrahydrofuran solvent into the evaporation assembly 7 through the liquid inlet pipe 5, the user controls the rotation of the motor 8, the motor 8 drives the first bevel gear 21 to rotate, the first bevel gear 21 drives the second bevel gear 22 to rotate, and the second bevel gear 22 drives the movable rod 20 to rotate;

s2, the movable rod 20 drives the rotating rod 24 to rotate and simultaneously drives the heating sheet 25 to rotate, the heating sheet 25 and the solvent are heated, tetrahydrofuran is evaporated from the solvent, meanwhile, the motor 8 drives the air entraining assembly 14 to work, the tetrahydrofuran evaporated in advance enters the second connecting pipe 17 through the air entraining assembly 14, and the condensing sleeve 16 can cool tetrahydrofuran steam in advance;

s3, and then flows into the collecting pipe 18 through the first connecting pipe 15 while the attenuated tetrahydrofuran vapor enters the condensing module 12 for cooling, the user opens the liquid collecting valve 11, and enters the collecting tank 10 through the collecting pipe 18, and finally the collection treatment is performed through the liquid discharging pipe 9.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a high-efficient recovery unit of degradable plastics PBAT byproduct tetrahydrofuran, includes box (1) and condensation subassembly (12), its characterized in that: the lower surface of the inner wall of the box body (1) is fixedly connected with an evaporation assembly (7), the lower surface of the inner wall of the box body (1) is fixedly connected with a collecting tank (10), the upper surface of the evaporation assembly (7) is fixedly connected with a motor (8), and the upper surface of the evaporation assembly (7) is provided with a gas entraining assembly (14);

a first bevel gear (21) is arranged on the outer surface of the motor (8), a second bevel gear (22) is meshed with the outer surface of the first bevel gear (21), a movable rod (20) is fixedly connected to the lower surface of the second bevel gear (22), a rotating rod (24) is fixedly connected to the lower surface of the movable rod (20), a heating sheet (25) is arranged on the outer surface of the rotating rod (24), and a second connecting pipe (17) is arranged on the back surface of the air-entraining component (14);

the other end of the second connecting pipe (17) is communicated with the upper surface of the condensing assembly (12), the lower surface of the condensing assembly (12) is communicated with the upper surface of the collecting tank (10) through a collecting pipe (18), a condensing sleeve (16) is arranged on the lower surface of the second connecting pipe (17), and the lower surface of the condensing sleeve (16) is communicated with the front surface of the collecting pipe (18) through a first connecting pipe (15).

2. The efficient recycling device of degradable plastic PBAT byproduct tetrahydrofuran of claim 1, characterized in that: the front of box (1) is provided with feed liquor pipe (5), the back of feed liquor pipe (5) is linked together with the front of evaporation subassembly (7), the front of box (1) is provided with drain pipe (6), the back of drain pipe (6) is linked together with the front of evaporation subassembly (7).

3. The efficient recycling device for degradable plastic PBAT byproduct tetrahydrofuran according to claim 1, characterized in that: the refrigerator is characterized in that a refrigerator door (3) is arranged on the right side face of the refrigerator body (1), and a handle (2) is fixedly connected to the right side face of the refrigerator door (3).

4. The efficient recycling device for degradable plastic PBAT byproduct tetrahydrofuran according to claim 1, characterized in that: the front of box (1) is provided with ventilation net (4), the right flank fixedly connected with fluid-discharge tube (9) of collection tank (10).

5. The efficient recycling device for degradable plastic PBAT byproduct tetrahydrofuran according to claim 1, characterized in that: the upper surface of evaporation subassembly (7) is provided with shows liquid pipe (13), the output of motor (8) and the right flank fixed connection of bleed subassembly (14).

6. The efficient recycling device for degradable plastic PBAT byproduct tetrahydrofuran according to claim 1, characterized in that: the upper surface of evaporation subassembly (7) is provided with bearing (23), the surface of movable rod (20) cup joints with the inner wall of bearing (23).

7. The efficient recycling device for degradable plastic PBAT byproduct tetrahydrofuran according to claim 1, characterized in that: the outer surface of the collecting pipe (18) is provided with a liquid collecting valve (11), and the outer surface of the collecting tank (10) is provided with an observation window (19).