A purification and evaporation separation device for regenerating waste isopropyl alcohol solution

Abstract

The utility model relates to the technical field of purification evaporation, and disclose a kind of waste solution purification evaporation separation device of regenerative isopropyl alcohol, it includes reaction box, the top of reaction box is fixedly connected with steam section, the top of steam section is fixedly connected with steam pipe, the top of steam pipe is fixedly connected with top connecting pipe, the heat of recovery steam is passed through, the temperature of metal pipe is promoted, preheating is carried out to feed liquid when along metal pipe and feed liquid is added, reduce the heating load in reaction box, shorten evaporated evaporation time, improve the efficiency of evaporation treatment, the connecting ring of continuous rotation can drive side connecting plate rotate along the side of filter screen, simultaneously drive side cleaning brush to rotate, when rotating side cleaning brush rotates along the surface of filter screen, the dust impurity particulate adhered to the surface of filter screen will be cleaned, after cleaning, the impurity falling to the side of filter screen will slide along the inclined bottom connecting groove, reduce the workload of operator cleaning.

Description

Technical Field

[0001] This utility model belongs to the field of purification and evaporation technology, and more specifically, it relates to a device for purifying, evaporating and separating waste solutions of regenerated isopropanol. Background Technology

[0002] Regenerated isopropanol waste solution refers to an isopropanol solution recovered and purified from waste liquid containing isopropanol through specific processes. Essentially, it represents the resource-based reuse of isopropanol waste liquid generated during industrial production or use, reducing environmental pollution and achieving raw material recycling. The core of the regenerated isopropanol waste solution purification evaporation and separation device is to achieve efficient separation of isopropanol from water and impurities through evaporation and condensation, combining membrane separation, distillation, and adsorption technologies to optimize purity and energy consumption.

[0003] In the prior art, patent application CN213327409U discloses "an isopropanol purification apparatus," which includes a deacetone removal tower, a dehydration tower, and a product tower connected in sequence. An auxiliary dehydration device is provided at the top of the dehydration tower to dehydrate the isopropanol-water azeotrope vapor obtained at the top of the dehydration tower before passing it into the deacetone removal tower. Compared with the prior art, the isopropanol purification process of this invention has the advantages of simple separation process, good product quality (no azeotropic agent contamination, low moisture content, and high purity), and low energy consumption.

[0004] The aforementioned "isopropanol purification device" still has some drawbacks. For example, during the purification and evaporation process of the existing waste solution, high-temperature steam is generated when the reaction liquid is added for the initial reaction. The high-temperature steam is often directly discharged. The directly discharged high-temperature steam without treatment can easily cause safety hazards to the surrounding operators. At the same time, the direct discharge of high-temperature heat energy will also result in waste.

[0005] To address this issue, a waste solution purification, evaporation, and separation device for regenerating isopropanol is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a waste solution purification, evaporation, and separation device for regenerated isopropanol. This addresses the issue raised in the background technology that high-temperature steam is generated during the initial reaction with the added reaction liquid. This high-temperature steam is often directly discharged, which poses a safety hazard to surrounding operators due to the lack of treatment. Furthermore, the direct discharge of high-temperature heat energy also results in waste.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste solution purification, evaporation, and separation device for regenerating isopropanol, comprising a reaction chamber, a steam section fixedly connected to the top of the reaction chamber, a steam pipe fixedly connected to the top of the steam section, a top connecting pipe fixedly connected to the top of the steam pipe, a liquid inlet pipe fixedly connected to one side of the reaction chamber, an inner connecting frame fixedly connected to the inner side of the steam section, a heat-conducting pipe fixedly connected to the inner side of the inner connecting frame, a bottom metal frame fixedly connected to the bottom of the heat-conducting pipe, side heat exchange plates fixedly connected to both sides of the bottom metal frame, a heat-conducting metal sheet fixedly connected to the top of the heat-conducting pipe, a bottom heat exchange plate fixedly connected to one side of the heat-conducting metal sheet, a metal pipe fixedly connected to the top of the liquid inlet pipe, and a top heating box fixedly connected to one side of the metal pipe.

[0008] Preferably, a side connecting frame is fixedly connected to one side of the top heating box, a motor body is fixedly connected to one side of the side connecting frame, a transmission rod is fixedly connected to the output shaft of the motor body, a transmission disc is fixedly connected to one end of the transmission rod, and a transmission fan is fixedly connected to one side of the transmission disc.

[0009] Preferably, the top of the top heating box is fixedly connected to an insulation pipe, and one side of the insulation pipe is fixedly connected to one side of the steam pipe.

[0010] Preferably, a filter screen is fixedly connected to one side of the top heating box, and a bottom connecting groove is provided at the bottom of the filter screen.

[0011] Preferably, a connecting ring is fixedly connected to the surface of the transmission rod, side connecting plates are fixedly connected to both sides of the connecting ring, and a side cleaning brush is fixedly connected to one side of the side connecting plate.

[0012] Preferably, the bottom of the top heating box is fixedly connected to a bottom fixing frame, and the number of bottom fixing frames is two.

[0013] Compared with the prior art, this utility model provides a waste solution purification, evaporation and separation device for regenerating isopropanol, which has the following beneficial effects:

[0014] 1) When the reaction liquid is added to the reaction chamber and evaporates, the generated hot steam will rise into the steam section along with the inside of the reaction chamber. The high temperature will raise the temperature of the side heat exchange fins and conduct the heat through the heat pipes and heat-conducting metal plates. The heat will be conducted to the surface of multiple bottom heat exchange fins through the heat-conducting metal plates. The multiple bottom heat exchange fins will dissipate the heat. As the bottom heat exchange fins contact and exchange heat with the air inside the top heating chamber, the heat inside the top heating chamber will be increased. The generated airflow will conduct the heat of the bottom heat exchange fins to the surface of the metal pipe. By recovering the heat of the steam, the temperature of the metal pipe will be increased. When the feed liquid is added along the metal pipe, the feed liquid will be preheated, reducing the heating load in the reaction chamber, shortening the evaporation time, and improving the efficiency of the evaporation process.

[0015] 2) The rotating connecting ring will rotate along the surface of the transmission rod. The continuously rotating connecting ring will drive the side connecting plate to rotate along one side of the filter screen, and at the same time drive the side cleaning brush to rotate. When the rotating side cleaning brush rotates along the surface of the filter screen, it will clean the dust and debris particles adhering to the surface of the filter screen. After cleaning, the debris that falls to one side of the filter screen will slide out along the inclined bottom connecting groove, reducing the cleaning workload of the operator. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the side heat exchanger structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the insulation pipe structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the top-heating box structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the transmission disc structure of this utility model.

[0022] The following are the labeling instructions in the diagram: 1. Reaction chamber; 2. Steam section; 3. Steam pipe; 4. Top connecting pipe; 5. Liquid inlet pipe; 601. Inner connecting frame; 602. Heat-conducting pipe; 603. Bottom metal frame; 604. Side heat exchange fins; 605. Heat-conducting metal sheet; 606. Bottom heat exchange fins; 607. Insulation pipe; 608. Top heating box; 609. Bottom fixing frame; 6010. Metal pipe; 701. Motor body; 702. Transmission rod; 703. Transmission disc; 704. Transmission fan; 801. Filter screen; 802. Connecting ring; 803. Side connecting plate; 804. Side cleaning brush; 805. Bottom connecting groove; 806. Side connecting frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a purification, evaporation and separation device for waste solution of regenerated isopropanol, including a reaction tank 1, a steam section 2 fixedly connected to the top of the reaction tank 1, a steam pipe 3 fixedly connected to the top of the steam section 2, a top connecting pipe 4 fixedly connected to the top of the steam pipe 3, an inlet pipe 5 fixedly connected to one side of the reaction tank 1, an inner connecting frame 601 fixedly connected to the inner side of the steam section 2, a heat-conducting pipe 602 fixedly connected to the inner side of the inner connecting frame 601, a bottom metal frame 603 fixedly connected to the bottom of the heat-conducting pipe 602, side heat exchange plates 604 fixedly connected to both sides of the bottom metal frame 603, a heat-conducting metal sheet 605 fixedly connected to the top of the heat-conducting pipe 602, a bottom heat exchange plate 606 fixedly connected to one side of the heat-conducting metal sheet 605, a metal pipe 6010 fixedly connected to the top of the inlet pipe 5, and a top heating box 608 fixedly connected to one side of the metal pipe 6010.

[0025] It should be noted that multiple bottom heat exchange fins 606 will dissipate heat. As the bottom heat exchange fins 606 exchange heat with the air inside the top heating box 608, the heat inside the top heating box 608 will be increased, thus recovering the heat.

[0026] In an optional embodiment: a side connecting frame 806 is fixedly connected to one side of the top heating box 608, a motor body 701 is fixedly connected to one side of the side connecting frame 806, a transmission rod 702 is fixedly connected to the output shaft of the motor body 701, a transmission disc 703 is fixedly connected to one end of the transmission rod 702, and a transmission fan 704 is fixedly connected to one side of the transmission disc 703.

[0027] It should be noted that the rotating transmission rod 702 will drive the transmission disk 703 and the transmission fan 704 to rotate. The rotation of the transmission fan 704 generates airflow to conduct the heat of the bottom heat exchange plate 606 to the surface of the metal tube 6010, thereby increasing the temperature of the metal tube 6010.

[0028] In an optional embodiment: a heat insulation pipe 607 is fixedly connected to the top of the top heating box 608, and one side of the heat insulation pipe 607 is fixedly connected to one side of the steam pipe 3.

[0029] It should be noted that the use of the insulation pipe 607 for sealing and insulation reduces the heat loss when the heat-conducting metal sheet 605 conducts heat. After the heat is conducted to the surface of the multiple bottom heat exchange plates 606 by the heat-conducting metal sheet 605, the heat will be dissipated by the multiple bottom heat exchange plates 606.

[0030] In an optional embodiment: a filter screen 801 is fixedly connected to one side of the top heating box 608, and a bottom connecting groove 805 is provided at the bottom of the filter screen 801.

[0031] It should be noted that the filter screen 801 filters particulate matter in the air. When the rotating side cleaning brush 804 rotates along the surface of the filter screen 801, it will clean the dust and debris particles adhering to the surface of the filter screen 801. After cleaning, the debris that falls to one side of the filter screen 801 will slide out along the inclined bottom connecting groove 805, reducing the workload of the operator.

[0032] In an optional embodiment: a connecting ring 802 is fixedly connected to the surface of the transmission rod 702, a side connecting plate 803 is fixedly connected to both sides of the connecting ring 802, and a side cleaning brush 804 is fixedly connected to one side of the side connecting plate 803.

[0033] It should be noted that the rotating transmission rod 702 will drive the connecting ring 802 to rotate. The rotating connecting ring 802 will rotate along the surface of the transmission rod 702. The continuously rotating connecting ring 802 will drive the side connecting plate 803 to rotate along one side of the filter screen 801, and at the same time drive the side cleaning brush 804 to rotate. When the rotating side cleaning brush 804 rotates along the surface of the filter screen 801, it will clean the dust and debris particles adhering to the surface of the filter screen 801.

[0034] In an optional embodiment, the bottom of the top heating box 608 is fixedly connected to a bottom fixing frame 609, and the number of bottom fixing frames 609 is two.

[0035] It should be noted that the use of two bottom fixing brackets 609 improves the rotational stability of the drive fan 704.

[0036] The specific usage and function of this embodiment: When the reaction liquid is added to the reaction tank 1 and evaporates, the generated hot steam will rise from inside the reaction tank 1 to the inside of the steam section 2. After the heat-conducting pipe 602 is fixed to the inside of the steam section 2 by the inner connecting frame 601, the high-temperature steam will come into contact with multiple side heat exchange fins 604 on the surface of the bottom metal frame 603. After the multiple side heat exchange fins 604 come into contact with the high-temperature hot steam, the high temperature heat will raise the temperature of the side heat exchange fins 604 and conduct it through the heat-conducting pipe 602 and the heat-conducting metal sheet 605. The heat is conducted through the heat-conducting metal sheet 605 to the surface of multiple bottom heat exchange fins 606. When the heat-conducting metal sheet 605 conducts heat along the outside of the reaction tank 1, the heat insulation pipe 607 is used for sealing and heat preservation, reducing the heat conduction time of the heat-conducting metal sheet 605. The heat loss is reduced. The heat is conducted to the surface of multiple bottom heat exchange plates 606 by the heat-conducting metal plate 605. The heat is then dissipated by the multiple bottom heat exchange plates 606. As the bottom heat exchange plates 606 exchange heat with the air inside the top heating box 608, the heat inside the top heating box 608 is increased. The motor body 701 drives the transmission rod 702 to rotate. The rotating transmission rod 702 drives the transmission disk 703 and the transmission fan 704 to rotate. The rotation of the transmission fan 704 generates airflow to conduct the heat of the bottom heat exchange plates 606 to the surface of the metal tube 6010, increasing the temperature of the metal tube 6010. When the feed liquid is added along the metal tube 6010, the feed liquid is preheated, reducing the heating load in the reaction box 1, shortening the evaporation time, and improving the efficiency of the evaporation process.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art and are not key to this utility model, therefore they will not be elaborated upon.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A device for purifying, evaporating, and separating waste solution from regenerated isopropanol, comprising a reaction chamber (1), characterized in that: A steam section (2) is fixedly connected to the top of the reaction chamber (1), a steam pipe (3) is fixedly connected to the top of the steam section (2), a top connecting pipe (4) is fixedly connected to the top of the steam pipe (3), an inlet pipe (5) is fixedly connected to one side of the reaction chamber (1), an inner connecting frame (601) is fixedly connected to the inner side of the steam section (2), a heat-conducting pipe (602) is fixedly connected to the inner side of the inner connecting frame (601), and the bottom of the heat-conducting pipe (602) is... A bottom metal frame (603) is fixedly connected to the bottom metal frame (603), and side heat exchange plates (604) are fixedly connected to both sides of the bottom metal frame (603). A heat-conducting metal sheet (605) is fixedly connected to the top of the heat-conducting pipe (602), and a bottom heat exchange plate (606) is fixedly connected to one side of the heat-conducting metal sheet (605). A metal pipe (6010) is fixedly connected to the top of the liquid inlet pipe (5), and a top heating box (608) is fixedly connected to one side of the metal pipe (6010).

2. The waste solution purification, evaporation, and separation device for regenerating isopropanol according to claim 1, characterized in that: A side connecting frame (806) is fixedly connected to one side of the top heating box (608), a motor body (701) is fixedly connected to one side of the side connecting frame (806), a transmission rod (702) is fixedly connected to the output shaft of the motor body (701), a transmission disc (703) is fixedly connected to one end of the transmission rod (702), and a transmission fan (704) is fixedly connected to one side of the transmission disc (703).

3. The waste solution purification, evaporation, and separation device for regenerating isopropanol according to claim 2, characterized in that: The top of the top heating box (608) is fixedly connected to an insulation pipe (607), and one side of the insulation pipe (607) is fixedly connected to one side of the steam pipe (3).

4. The waste solution purification, evaporation, and separation device for regenerating isopropanol according to claim 3, characterized in that: A filter screen (801) is fixedly connected to one side of the top heating box (608), and a bottom connecting groove (805) is provided at the bottom of the filter screen (801).

5. The waste solution purification, evaporation, and separation device for regenerating isopropanol according to claim 4, characterized in that: A connecting ring (802) is fixedly connected to the surface of the transmission rod (702), and side connecting plates (803) are fixedly connected to both sides of the connecting ring (802). A side cleaning brush (804) is fixedly connected to one side of the side connecting plate (803).

6. The waste solution purification, evaporation, and separation device for regenerating isopropanol according to claim 5, characterized in that: The bottom of the top heating box (608) is fixedly connected to a bottom fixing frame (609), and there are two bottom fixing frames (609).

Images