Three-phase dangerous wastewater separation treatment low-temperature vacuum evaporation equipment

Abstract

The utility model discloses a kind of low-temperature vacuum evaporation equipment for three-phase dangerous wastewater separation treatment, including the evaporation tank of front end inclined downward arrangement and the condensing mechanism being set to evaporation tank one side, the front of evaporation tank is provided with vacuum pump, and the air inlet of vacuum pump is communicated with the front end of evaporation tank between exhaust pipe, the air outlet of vacuum pump is communicated with the front end of condensing mechanism, the utility model relates to wastewater treatment technical field.The low-temperature vacuum evaporation equipment for three-phase dangerous wastewater separation treatment, by setting evaporation tank, the device when using, wastewater is sent into the inside of evaporation tank after first round filtration, the inside of evaporation tank is extracted vacuum by vacuum pump, so that wastewater boils and evaporates in room temperature state, then the water vapor evaporated is sent into condensing mechanism and is condensed, finally form clean water and discharge, by this kind of mode, three-phase dangerous wastewater can be more completely handled, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a low-temperature vacuum evaporation device for the separation and treatment of three-phase hazardous wastewater. Background Technology

[0002] Three-phase hazardous wastewater refers to wastewater with hazardous characteristics such as high toxicity, flammability, explosiveness, corrosivity, chemical reactivity, and infectiousness. This wastewater typically originates from industrial production activities, such as chemical, pharmaceutical, petroleum refining, dye, electroplating, and heavy metal refining industries. The composition of three-phase hazardous wastewater is complex and may contain heavy metals (such as lead, mercury, chromium, and cadmium), organic pollutants, radioactive substances, and toxic compounds (such as cyanides and halogenated hydrocarbons).

[0003] Wastewater treatment involves using physical, chemical, and biological methods to purify wastewater, reduce pollution, and ultimately achieve wastewater recycling and reuse, making full use of water resources. Current wastewater treatment equipment often only processes wastewater through filtration, and some complex wastewaters are often not completely cleaned by filtration alone, resulting in poor effectiveness. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a low-temperature vacuum evaporation device for the separation and treatment of three-phase hazardous wastewater. This solves the problem that current wastewater treatment equipment often only processes wastewater through filtration, which is often insufficient to completely clean some complex wastewaters, resulting in poor treatment efficiency.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a low-temperature vacuum evaporation device for the separation and treatment of three-phase hazardous wastewater, comprising an evaporation tank with its front end tilted downward and a condensation mechanism disposed on one side of the evaporation tank;

[0006] A vacuum pump is installed at the front of the evaporator. An air extraction pipe is connected between the air inlet of the vacuum pump and the front end of the evaporator. The air outlet of the vacuum pump is connected to the front end of the condensation mechanism. A filter cartridge is installed at the rear of the evaporator. A liquid pump is installed at the front of the filter cartridge. The liquid inlet of the liquid pump is connected to the liquid outlet of the filter cartridge. A liquid delivery pipe is connected between the liquid outlet of the liquid pump and the rear end of the evaporator.

[0007] Furthermore, the evaporator is rotatably connected to a rotating rod arranged along its central axis. Multiple connecting sleeves are fixedly connected to the outer surface of the rotating rod. Multiple extension rods are fixedly connected to the outer surface of each of the multiple connecting sleeves. Scrapers with outer ends that fit against the inner surface of the evaporator are fixedly connected to the outer ends of the multiple extension rods.

[0008] Furthermore, the bottom front end of the evaporator is connected to a slag discharge pipe, and the outer end of the slag discharge pipe is detachably fitted with a sealing cap.

[0009] Furthermore, the condensation mechanism includes a horizontally arranged condensation tank. Both ends of the upper surface of the condensation tank have vertically extending mounting ports. A conical frame is fixedly connected inside each of the two mounting ports. A horizontal plate is horizontally fixedly connected to the bottom of each of the two conical frames. Multiple through holes are vertically extending through the upper surfaces of the two horizontal plates. These through holes correspond to each other. A heat exchange tube connects between every two corresponding through holes and inside the condensation tank. Inlet and outlet liquid pipes are vertically connected to the tops of the two conical frames.

[0010] Furthermore, an outlet pipe is connected between the outlet of the vacuum pump and the front end of the condenser.

[0011] Furthermore, a water tank is provided at the rear of the condenser, and a drain pipe is connected between the rear end of the lower surface of the condenser and the water tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This low-temperature vacuum evaporation equipment for the separation and treatment of three-phase hazardous wastewater, by setting up an evaporation tank, allows the wastewater to be sent into the evaporation tank after the first round of filtration. The evaporation tank is then evacuated by a vacuum pump, causing the wastewater to boil and evaporate at room temperature. The evaporated water vapor is then sent to a condensation mechanism for condensation, ultimately forming clean water which is then discharged. This method can achieve relatively complete treatment of three-phase hazardous wastewater, improving the practicality of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the other side of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the condensation mechanism in this utility model;

[0016] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the evaporator in this utility model.

[0017] In the diagram: 1-Evaporator, 2-Condensation mechanism, 21-Condenser, 22-Conical frame, 23-Horizontal plate, 24-Through hole, 25-Heat exchange tube, 26-Inlet / outlet liquid pipe, 3-Filter cylinder, 4-Liquid pump, 5-Liquid delivery pipe, 6-Vacuum pump, 7-Evaporation pipe, 8-Outlet pipe, 9-Water tank, 10-Rotating rod, 11-Connecting sleeve, 12-Extension rod, 13-Scraper, 14-Slag discharge pipe, 15-Drain pipe. Detailed Implementation

[0018] 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 protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a low-temperature vacuum evaporation device for the separation and treatment of three-phase hazardous wastewater, including an evaporator 1 with its front end tilted downward and a condensation mechanism 2 disposed on one side of the evaporator 1;

[0020] A vacuum pump 6 is installed at the front of the evaporator 1. A suction pipe 7 is connected between the air inlet of the vacuum pump 6 and the front end of the evaporator 1. The air outlet of the vacuum pump 6 is connected to the front end of the condensing mechanism 2. A filter cartridge 3 is installed at the rear of the evaporator 1. A liquid pump 4 is installed at the front of the filter cartridge 3. The liquid inlet of the liquid pump 4 is connected to the liquid outlet of the filter cartridge 3. A liquid delivery pipe 5 is connected between the liquid outlet of the liquid pump 4 and the rear end of the evaporator 1.

[0021] The filter cartridge 3 is equipped with a filter element, which performs preliminary filtration of wastewater by filtering out solid impurities, facilitating subsequent treatment. This is a mature existing technology and will not be elaborated here.

[0022] When the device is in use, the wastewater is sent into the evaporator 1 after the first round of filtration. The vacuum pump 6 evacuates the inside of the evaporator 1, causing the wastewater to boil and evaporate at room temperature. Then, the evaporated water vapor is sent to the condensation mechanism for condensation, and finally clean water is formed and discharged. In this way, three-phase hazardous wastewater can be treated relatively completely, which improves the practicality of the device.

[0023] A valve body is installed on the liquid delivery pipe 5. After a certain amount of wastewater is delivered into the evaporator 1, the valve body closes and the liquid pump 4 stops running, ensuring the airtightness of the evaporator 1 and thus ensuring that the vacuum environment inside it is not affected.

[0024] The evaporator 1 is rotatably connected to a rotating rod 10 arranged along its central axis. Multiple connecting sleeves 11 are fixedly connected to the outer surface of the rotating rod 10. Multiple extension rods 12 are fixedly connected to the outer surface of each of the multiple connecting sleeves 11. Scrapers 13 with their outer ends in contact with the inner surface of the evaporator 1 are fixedly connected to the outer ends of the multiple extension rods 12.

[0025] The bottom front end of the evaporator 1 is connected to a slag discharge pipe 14, and a sealing cover is detachably installed on the outer end of the slag discharge pipe 14.

[0026] After the water in the evaporator 1 evaporates, the remaining material will form waste residue. The rotating rod 10 drives multiple scrapers 13 to scrape off the waste residue adhering to the inner wall surface of the evaporator 1. Then, the waste residue will move forward along the inclined direction of the evaporator 1 under its own gravity and finally be discharged through the slag discharge pipe 14. When it is necessary to discharge the slag, the sealing cover can be opened. The sealing cover and the outer end of the slag discharge pipe 14 are connected by a flange structure.

[0027] A motor is installed at the rear end of the evaporator 1. Its output shaft rotatably passes through the rear end surface of the evaporator 1 and is fixedly connected to one end of the rotating rod 10. A sealing structure is provided between the motor output shaft and the evaporator 1 to prevent gas leakage or entry.

[0028] The condensing mechanism 2 includes a horizontally arranged condensing tank 21. Both ends of the upper surface of the condensing tank 21 are vertically opened with mounting ports. A conical frame 22 is fixedly connected inside each of the two mounting ports. A horizontal plate 23 is horizontally fixedly connected to the bottom of each of the two conical frames 22. Multiple through holes 24 are vertically opened on the upper surface of each of the two horizontal plates 23. The multiple through holes 24 on the two horizontal plates 23 are respectively corresponding. A heat exchange tube 25 is connected between each pair of corresponding through holes 24 and inside the condensing tank 21. The top of each of the two conical frames 22 is vertically connected with an inlet / outlet liquid pipe 26.

[0029] An outlet pipe 8 connects the outlet of the vacuum pump 6 to the front end of the condenser 21.

[0030] A water tank 9 is provided at the rear of the condenser tank 21, and a drain pipe 15 is connected between the rear end of the lower surface of the condenser tank 21 and the water tank 9.

[0031] Water vapor enters the interior of the condenser 21 through the outlet pipe 8. At this time, the water vapor is in a gaseous state and can be introduced into the interior of a liquid inlet / outlet pipe 26. The cold water flows to the other end through multiple through holes 24 and multiple heat exchange tubes 25. During this process, the water vapor will condense on the outer surface of the heat exchange tubes 25 to form water droplets and drip down. Finally, it enters the interior of the water tank 9 through the drain pipe 15 and is collected.

[0032] When the device is in use, the wastewater is sent into the evaporator 1 after the first round of filtration. The vacuum pump 6 evacuates the inside of the evaporator 1, causing the wastewater to boil and evaporate at room temperature. Then, the water vapor enters the condenser 21 through the outlet pipe 8. At this time, the water vapor is in a gaseous state and can be introduced into the inside of a liquid inlet / outlet pipe 26. The cold water flows to the other end through multiple through holes 24 and multiple heat exchange tubes 25. During this process, the water vapor will condense on the outer surface of the heat exchange tubes 25 to form water droplets and drip down. Finally, it enters the water tank 9 through the drain pipe 15 and is collected.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low-temperature vacuum evaporation device for the separation and treatment of three-phase hazardous wastewater, characterized in that: The device includes an evaporator (1) with its front end tilted downwards and a condensing mechanism (2) located on one side of the evaporator (1). A vacuum pump (6) is provided at the front of the evaporator (1). A suction pipe (7) is connected between the air inlet of the vacuum pump (6) and the front end of the evaporator (1). The air outlet of the vacuum pump (6) is connected to the front end of the condensing mechanism (2). A filter cylinder (3) is provided at the rear of the evaporator (1). A liquid pump (4) is provided at the front of the filter cylinder (3). The liquid inlet of the liquid pump (4) is connected to the liquid outlet of the filter cylinder (3). A liquid delivery pipe (5) is connected between the liquid outlet of the liquid pump (4) and the rear end of the evaporator (1).

2. The low-temperature vacuum evaporation equipment for three-phase hazardous wastewater separation and treatment according to claim 1, characterized in that: The evaporator (1) is rotatably connected to a rotating rod (10) arranged along its central axis. Multiple connecting sleeves (11) are fixedly connected to the outer surface of the rotating rod (10). Multiple extension rods (12) are fixedly connected to the outer surface of each of the multiple connecting sleeves (11). Scrapers (13) whose outer ends are in contact with the inner surface of the evaporator (1) are fixedly connected to the outer ends of the multiple extension rods (12).

3. The low-temperature vacuum evaporation equipment for three-phase hazardous wastewater separation and treatment according to claim 1, characterized in that: The bottom front end of the evaporator (1) is connected to a slag discharge pipe (14), and the outer end of the slag discharge pipe (14) is detachably fitted with a sealing cover.

4. The low-temperature vacuum evaporation equipment for three-phase hazardous wastewater separation and treatment according to claim 1, characterized in that: The condensation mechanism (2) includes a horizontally arranged condenser tank (21). Both ends of the upper surface of the condenser tank (21) are vertically opened with mounting ports. A conical frame (22) is fixedly connected inside the two mounting ports. A horizontal plate (23) is horizontally fixedly connected to the bottom of the two conical frames (22). Multiple through holes (24) are vertically opened on the upper surface of the two horizontal plates (23). The multiple through holes (24) on the two horizontal plates (23) are respectively corresponding. A heat exchange tube (25) is connected between each pair of corresponding through holes (24) and inside the condenser tank (21). An inlet and outlet liquid pipe (26) is vertically connected to the top of the two conical frames (22).

5. A low-temperature vacuum evaporation device for the separation and treatment of three-phase hazardous wastewater according to claim 4, characterized in that: An outlet pipe (8) is connected between the outlet of the vacuum pump (6) and the front end of the condenser (21).

6. The low-temperature vacuum evaporation equipment for three-phase hazardous wastewater separation and treatment according to claim 4, characterized in that: A water tank (9) is provided at the rear of the condenser (21), and a drain pipe (15) is connected between the rear end of the lower surface of the condenser (21) and the water tank (9).

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