DMF (Dimethyl Formamide) waste liquid recovery device

Abstract

The utility model relates to a DMF (Dimethyl Formamide) waste liquid recovery device which comprises a distillation retort, the top end and the bottom end of the distillation retort are open, the top end of the distillation retort is connected with a top cover through a bolt, the bottom end of the distillation retort is in threaded connection with a bottom cover, the top end of the top cover is provided with a distillation assembly, and the distillation assembly comprises a distillation pipe, a liquid inlet pipe and a sealing plug; a heating assembly is arranged in an inner cavity of the bottom cover and comprises a heating mechanism, a power line and a second handle, and a sealing assembly is arranged on the edge of the bottom end of the distillation retort. The bottom cover and the first handle are arranged and are matched with the sealing ring and the sealing groove, so that when the bottom end of the distillation retort needs to be cleaned, the bottom cover at the bottom end of the distillation retort can be directly screwed off, and the bottom end of the distillation retort can be detached, and a worker can better clean the bottom of an inner cavity of the distillation retort; the sealing ring and the sealing groove are matched, so that the sealing performance is better after the bottom cover is connected.

Description

Technical Field

[0001] The utility model relates to the technical field of DMF waste liquid recovery, in particular to a DMF waste liquid recovery device. Background Art

[0002] The DMF waste liquid recovery process mainly includes pretreatment, flotation treatment, sedimentation and separation, recovery device and other steps. The clean water after sedimentation can enter the recovery device to recover DMF or other valuable substances. At present, distillation is generally adopted for the recovery of DMF waste liquid, and a distillation tower or distillation tank is selected according to the recovery amount.

[0003] At present, when most distillation tanks are used to distill and recover DMF waste liquid, impurities will remain and deposit at the bottom of the tank cavity. However, the bottom of most distillation tanks is fixed to the tank body. The impurities adhered to the bottom of the distillation tank cavity cannot be effectively cleaned only through the discharge port at the bottom of the tank body, and it is not convenient for staff to clean it. Therefore, it is necessary to design a distillation tank for DMF waste liquid recovery that is convenient for cleaning the bottom of the tank cavity to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a DMF waste liquid recovery device to solve the problems raised by the above background technology.

[0005] The utility model discloses a DMF waste liquid recovery device, comprising a distillation tank, wherein the top and bottom ends of the distillation tank are both open, the top end of the distillation tank is connected to a top cover by bolts, the bottom end of the distillation tank is threadedly connected to a bottom cover, the top end of the top cover is provided with a distillation component, the distillation component comprises a distillation tube, a liquid inlet pipe and a sealing plug, one end of the distillation tube is communicated with the inner cavity of the distillation tank, the inner cavity of the bottom cover is provided with a heating component, the heating component comprises a heating mechanism, a power cord and a second handle, a sealing component is provided at the edge of the bottom end of the distillation tank; the sealing component comprises a first docking ring, a second docking ring, a sealing ring and a sealing groove, a stirring component is provided at the middle part of the top end of the top cover, the stirring component comprises a driving mechanism, a stirring rod and a stirring blade, and the driving mechanism is fixedly installed at the middle part of the top end of the top cover.

[0006] As a further improvement of the present invention, the distillation assembly further includes an observation window and a glass plate. The observation window is vertically penetrated through the front of the distillation tank, and the glass plate is fixedly connected to the inner wall of the observation window.

[0007] As a further improvement of the present invention, the other end of the distillation tube is connected to an external condensation mechanism, the liquid inlet pipe is fixedly connected to one side of the top end of the top cover, and the sealing plug is movably inserted into the top end of the liquid inlet pipe.

[0008] As a further improvement of the present invention, a fixing ring is fixedly connected to the outer surface of the distillation tank near the bottom end, and a plurality of supporting blocks are fixedly connected to the outer surface of the fixing ring.

[0009] As a further improvement of the present invention, the bottom ends of several of the support blocks are connected to support feet via bolts, the bottom ends of the support feet are fixedly connected to fixed plates, and the support feet are perpendicular to the support blocks.

[0010] As a further improvement of the present invention, the stirring rod passes through the top cover and is fixedly connected to the output shaft of the driving mechanism, and the stirring blade is fixedly connected to the outer surface of the stirring rod near the bottom end.

[0011] As a further improvement of the present invention, the first docking ring is fixedly connected to the outer surface of the distillation tank near the bottom end, the second docking ring is fixedly connected to the edge of the bottom end surface of the bottom cover, and several first handles are fixedly connected to the bottom end surface of the bottom cover near the edge.

[0012] As a further improvement of the present invention, an installation cavity is opened in the middle of the bottom end of the bottom cover, the heating mechanism is installed in the cover installation cavity, the second handle is fixedly connected to the middle of the bottom end of the heating mechanism, and the power cord is installed on one side of the bottom end of the heating mechanism.

[0013] As a further improvement of the present invention, the sealing ring is fixedly connected to the top end surface of the second docking ring, the sealing groove is opened at a position corresponding to the bottom end surface of the first docking ring and the sealing ring, and the size of the sealing ring is adapted to the sealing groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model provides a bottom cover and a first handle, cooperates with a sealing ring and a sealing groove, so that when the bottom of the distillation tank needs to be cleaned, the bottom cover at the bottom of the distillation tank can be directly unscrewed to remove the bottom of the distillation tank, so that the staff can better clean the bottom of the inner cavity of the distillation tank, thereby preventing impurities from adhering to the bottom of the inner cavity of the distillation tank. The sealing ring and the sealing groove make the sealing performance better after the bottom cover is connected;

[0016] 2. At the same time, the stirring rod and stirring blades are used in conjunction with the driving mechanism to better stir and mix the waste liquid during distillation, so that the organic matter in the waste liquid can be better distilled and discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional front view of the expanded structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model when viewed from above;

[0020] Figure 3 It is a schematic diagram of the overall front view and sectional expansion structure of the utility model.

[0021] In the figure: 01, distillation tank; 011, top cover; 012, support block; 013, support foot; 014, fixed plate; 015, fixed ring; 02, distillation tube; 021, liquid inlet pipe; 022, sealing plug; 023, glass plate; 024, observation window; 03, driving mechanism; 031, stirring rod; 032, stirring blade; 04, bottom cover; 041, first handle; 042, heating mechanism; 043, second handle; 044, power cord; 05, first docking ring; 051, second docking ring; 052, sealing ring; 053, sealing groove. DETAILED DESCRIPTION

[0022] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0023] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0024] In the description of this technology, it should also be noted that, unless otherwise specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this technology based on the specific circumstances.

[0025] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0026] See also Figure 1-3 The utility model includes a distillation tank 01, the top and bottom ends of the distillation tank 01 are both open, the top of the distillation tank 01 is connected to a top cover 011 by bolts, and the bottom end of the distillation tank 01 is threadedly connected to a bottom cover 04, a distillation assembly is provided on the top of the top cover 011, the distillation assembly includes a distillation tube 02, a liquid inlet pipe 021 and a sealing plug 022, one end of the distillation tube 02 is communicated with the inner cavity of the distillation tank 01, the inner cavity of the bottom cover 04 is provided with a heating assembly, the heating assembly includes a heating mechanism 042, a power cord 044 and a second handle 043, a sealing assembly is provided at the edge of the bottom end of the distillation tank 01; the sealing assembly includes a first docking ring 05, a second docking ring 051, a sealing ring 052 and a sealing groove 053, a stirring assembly is provided at the middle of the top end of the top cover 011, the stirring assembly includes a driving mechanism 03, a stirring rod 031 and a stirring blade 032, and the driving mechanism 03 is fixedly installed at the middle of the top end of the top cover 011.

[0027] See also Figure 1 and Figure 2 In this embodiment, in order to better guide the distillate out and facilitate the staff to measure the height of the liquid level inside the distillation tank 01, the distillation assembly further includes an observation window 024 and a glass plate 023. The observation window 024 is vertically penetrated through the front of the distillation tank 01, and the glass plate 023 is fixedly connected to the inner wall of the observation window 024.

[0028] The other end of the distillation tube 02 is connected to the external condensation mechanism, the liquid inlet pipe 021 is fixedly connected to one side of the top of the top cover 011, and the sealing plug 022 is movably inserted into the top of the liquid inlet pipe 021.

[0029] First, pull out the sealing plug 022, and inject the waste liquid to be recovered into the distillation tank 01 from the liquid inlet pipe 021. After the injection is completed, insert the sealing plug 022 into the liquid inlet pipe 021. The water vapor generated during distillation is discharged from the distillation tube 02 and condensed into liquid with the help of the external condenser.

[0030] See also Figure 1 and Figure 2 It should be noted that, in order to better support the distillation tank 01 and better stir the waste liquid, a fixing ring 015 is fixedly connected to the outer surface of the distillation tank 01 near the bottom end, and a plurality of support blocks 012 are fixedly connected to the outer surface of the fixing ring 015;

[0031] The bottom ends of the support blocks 012 are all connected to support feet 013 by bolts. The bottom ends of the support feet 013 are fixedly connected to fixed plates 014. The support feet 013 are perpendicular to the support blocks 012.

[0032] The stirring rod 031 passes through the top cover 011 and is fixedly connected to the output shaft of the driving mechanism 03. The stirring blade 032 is fixedly connected to the outer surface of the stirring rod 031 near the bottom end. The driving mechanism 03 is a stepping motor.

[0033] When the waste liquid is being distilled, the driving mechanism 03 is started, and the driving mechanism 03 is used to drive the stirring rod 031 and the stirring blade 032 to rotate, so that the waste liquid can be distilled better.

[0034] See also Figure 1 and Figure 3 Specifically, in order to better heat the waste liquid and facilitate cleaning of the bottom of the inner cavity of the distillation tank 01, the first docking ring 05 is fixedly connected to the outer surface of the distillation tank 01 near the bottom end, and the second docking ring 051 is fixedly connected to the edge of the bottom end surface of the bottom cover 04. The bottom end surface of the bottom cover 04 is fixedly connected to a plurality of first handles 041 near the edge;

[0035] The bottom middle of the bottom cover 04 is provided with an installation cavity, the heating mechanism 042 is installed in the cover installation cavity, the second handle 043 is fixedly connected to the bottom middle of the heating mechanism 042, and the power cord 044 is installed on one side of the bottom of the heating mechanism 042. The heating mechanism 042 is an electric heating plate and the model is: SG26T-D22;

[0036] The sealing ring 052 is fixedly connected to the top surface of the second docking ring 051 , and the sealing groove 053 is opened at a position corresponding to the bottom surface of the first docking ring 05 and the sealing ring 052 . The size of the sealing ring 052 is adapted to the sealing groove 053 .

[0037] When heating is required for distillation, it is only necessary to connect the power cord 044 to the mains electricity, and the waste liquid in the distillation tank 01 can be heated and distilled through the heating mechanism 042. When it is necessary to clean the stains adhering to the bottom of the inner cavity of the distillation tank 01, it is necessary to first complete the distillation of the waste liquid inside the distillation tank 01, and then grasp the first handle 041 to unscrew the bottom cover 04 from the bottom end of the distillation tank 01, so that the sealing ring 052 is separated from the sealing groove 053. The bottom cover 04 can be disassembled to clean the top surface of the bottom cover 04, and the inner wall of the distillation tank 01 can also be cleaned through the opening at the bottom end of the distillation tank 01, making it more convenient and quick for the staff to clean. Later, the second handle 043 can be grasped to unscrew the heating mechanism 042 from the installation cavity at the bottom end of the bottom cover 04.

[0038] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A DMF waste liquid recovery device, comprising a distillation tank (01), characterized in that: The top and bottom of the distillation tank (01) are both open. The top of the distillation tank (01) is connected to a top cover (011) by bolts, and the bottom of the distillation tank (01) is threadedly connected to a bottom cover (04). A distillation assembly is provided on the top of the top cover (011), and the distillation assembly includes a distillation tube (02), a liquid inlet tube (021) and a sealing plug (022). One end of the distillation tube (02) is communicated with the inner cavity of the distillation tank (01). A heating assembly is provided in the inner cavity of the bottom cover (04), and the heating assembly includes a heating mechanism (042), a power cord (044) and a second handle (043). A sealing assembly is provided at the edge of the bottom end of the distillation tank (01); The sealing assembly comprises a first docking ring (05), a second docking ring (051), a sealing ring (052) and a sealing groove (053); a stirring assembly is provided at the middle of the top end of the top cover (011); the stirring assembly comprises a driving mechanism (03), a stirring rod (031) and a stirring blade (032); and the driving mechanism (03) is fixedly mounted at the middle of the top end of the top cover (011).

2. a kind of DMF waste liquid recovery device according to claim 1, is characterized in that: The distillation assembly further comprises an observation window (024) and a glass plate (023), wherein the observation window (024) is vertically penetrated and opened on the front side of the distillation tank (01), and the glass plate (023) is fixedly connected to the inner wall of the observation window (024).

3. a kind of DMF waste liquid recovery device according to claim 1, is characterized in that: The other end of the distillation tube (02) is connected to an external condensation mechanism, the liquid inlet pipe (021) is fixedly connected to one side of the top end of the top cover (011), and the sealing plug (022) is movably plugged into the top end of the liquid inlet pipe (021).

4. a kind of DMF waste liquid recovery device according to claim 1, is characterized in that: A fixing ring (015) is fixedly connected to a position near the bottom end of the outer surface of the distillation tank (01), and a plurality of supporting blocks (012) are fixedly connected to the outer surface of the fixing ring (015).

5. a kind of DMF waste liquid recovery device according to claim 4, is characterized in that: The bottom ends of the plurality of support blocks (012) are connected to support feet (013) via bolts, the bottom ends of the support feet (013) are fixedly connected to fixed plates (014), and the support feet (013) are perpendicular to the support blocks (012).

6. a kind of DMF waste liquid recovery device according to claim 1, is characterized in that: The stirring rod (031) passes through the top cover (011) and is fixedly connected to the output shaft of the driving mechanism (03), and the stirring blade (032) is fixedly connected to a position near the bottom end of the outer surface of the stirring rod (031).

7. a kind of DMF waste liquid recovery device according to claim 1, is characterized in that: The first docking ring (05) is fixedly connected to the outer surface of the distillation tank (01) near the bottom end, and the second docking ring (051) is fixedly connected to the edge of the bottom end surface of the bottom cover (04). A plurality of first handles (041) are fixedly connected to the bottom end surface of the bottom cover (04) near the edge.

8. a kind of DMF waste liquid recovery device according to claim 1, is characterized in that: The bottom cover (04) is provided with an installation cavity in the middle of the bottom end, the heating mechanism (042) is installed in the cover installation cavity, the second handle (043) is fixedly connected to the middle of the bottom end of the heating mechanism (042), and the power cord (044) is installed on one side of the bottom end of the heating mechanism (042).

9. a kind of DMF waste liquid recovery device according to claim 1, is characterized in that: The sealing ring (052) is fixedly connected to the top end surface of the second docking ring (051), and the sealing groove (053) is opened at a position corresponding to the bottom end surface of the first docking ring (05) and the sealing ring (052). The size of the sealing ring (052) is adapted to the sealing groove (053).

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