Green low-carbon liquid enhanced evaporation equipment

Abstract

This invention discloses a green and low-carbon liquid-enhanced evaporation device, comprising a water pumping device, a spray system, and an evaporation curtain. The water pumping device is used to pump water from a water tank, and its outlet is connected to the inlet of the spray system. The evaporation curtain is suspended in the air above the water tank. After the water in the tank is pumped out by the water pumping device, it is sprayed onto the evaporation curtain by the spray system. This green and low-carbon liquid-enhanced evaporation device improves the evaporation efficiency of wastewater in the evaporation tank.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a green and low-carbon liquid-enhanced evaporation device. Background Technology

[0002] Currently, uranium mining in my country via in-situ leaching is mainly concentrated in Inner Mongolia and Xinjiang. In-situ leaching uranium mining eliminates the need for tailings ponds and waste rock dumps, and causes minimal damage to surface vegetation during the mining and smelting process, earning it the title of "green uranium mining technology." However, the primary method for treating wastewater from in-situ leaching mines is natural evaporation, requiring the construction of evaporation ponds—equivalent to those not found in conventional mines. These ponds store and treat the large amounts of radioactive waste generated during the in-situ leaching process. They utilize the physical phenomenon of natural evaporation to allow non-radioactive water in the wastewater to escape into the atmosphere as water vapor, while non-volatile radionuclides remain in the solid pond sludge. However, natural evaporation is severely affected by seasonal, climatic, and weather variations, resulting in unstable evaporation rates. Furthermore, the large land area required for evaporation ponds creates land acquisition pressure, making it impossible for enterprises to meet the increasing industrial demands using existing evaporation ponds.

[0003] Therefore, it is necessary to invent a green and low-carbon liquid-enhanced evaporation device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a green and low-carbon liquid-enhanced evaporation device to solve the problems existing in the prior art and improve the evaporation efficiency of wastewater in the evaporation tank.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a green and low-carbon liquid enhanced evaporation device, including a water pumping device, a spraying system and an evaporation curtain. The water pumping device is used to pump water out of a water tank. The outlet of the water pumping device is connected to the inlet of the spraying system. The evaporation curtain is suspended in the air and located above the water tank. After the water in the water tank is pumped out by the water pumping device, it is sprayed onto the evaporation curtain through the spraying system.

[0006] Preferably, it also includes a floating platform and a suspension frame, wherein the floating platform floats on the water surface in the pool, and the suspension frame is disposed on the floating platform; there are multiple evaporation curtains, and all of the evaporation curtains are suspended on the suspension frame.

[0007] Preferably, all the evaporation curtains are arranged in parallel to each other, and the green and low-carbon liquid enhanced evaporation equipment also includes an adaptive wind direction control unit;

[0008] The wind direction adaptive control unit includes a drive device, a wind vane, an angle sensor, and a controller. The drive device is fixed to the floating platform and can drive the suspension frame to rotate horizontally relative to the floating platform. The wind vane is fixed to the floating platform or the suspension frame, and the angle sensor is fixed to the suspension frame. The drive device, the angle sensor, and the wind speed and direction sensor in the wind vane are respectively connected to the controller. The controller can drive the suspension frame to rotate based on the wind speed and direction signals fed back by the wind speed and direction sensors and the signals fed back by the angle sensor, so that the surface of the evaporation curtain on the suspension frame is parallel to the wind direction.

[0009] Preferably, the floating platform includes a square frame and multiple pontoons, all of which are located below the square frame and are fixedly connected to the square frame, and the driving device is fixedly connected to the square frame.

[0010] Preferably, a fixing plate is fixedly provided at the center of the bottom end of the suspension frame, the output shaft of the drive device is vertical, and the output shaft of the drive device is fixedly connected to the fixing plate; a first sliding track is provided on the square frame, the first sliding track includes at least three first support mechanisms arranged circumferentially around the output shaft, the first support mechanism includes a vertical first bearing bracket and a first bearing installed at the top of the first bearing bracket, the first bearing bracket is fixedly connected to the square frame, the rotation shaft of the first bearing is distributed radially along the output shaft, and the first bearing is in rolling engagement with the fixing plate.

[0011] Preferably, the square frame is further provided with a second sliding track. The second sliding track includes a circular frame and a plurality of second support mechanisms evenly arranged circumferentially on the circular frame. The circular frame is horizontally fixed on the square frame and is coaxial with the output shaft. The second support mechanism includes a vertical second bearing bracket and a second bearing installed at the top of the second bearing bracket. The second bearing bracket is fixedly connected to the square frame. The rotation axis of the second bearing is radially distributed along the output shaft. The second bearing is in rolling engagement with an annular plate fixed at the bottom of the suspension frame.

[0012] Preferably, the pumping device is a submersible pump, and the pumping device is fixed on the floating platform; the pumping port of the pumping device is connected to a pumping pipe, and the pumping end of the pumping pipe is placed in the water of the pool.

[0013] Preferably, the spraying device includes a water inlet pipe and a spraying pipeline. The spraying pipeline is connected to the outlet of the pumping device through the water inlet pipe. The spraying pipeline is fixed above the suspension frame. The spraying pipeline includes a plurality of spray pipes arranged at intervals. Each spray pipe is provided with a spray hole facing the evaporation curtain.

[0014] Preferably, the driving device is a stepper motor, and the wind direction adaptive control unit further includes a stepper driver for driving the stepper motor, the stepper driver being connected to the controller signal.

[0015] Preferably, the wind direction adaptive control unit further includes a process data acquisition and monitoring device connected to the controller, the process data acquisition and monitoring device being a touch screen; the touch screen can serve as an input and control device for the controller, and the touch screen can display the wind direction angle and the curtain angle, the curtain angle being the angle of the suspension frame.

[0016] The present invention achieves the following technical effects compared to the prior art:

[0017] This invention provides a green and low-carbon liquid-enhanced evaporation device that improves the evaporation efficiency of wastewater in an evaporation tank. This green and low-carbon liquid-enhanced evaporation device has at least the following advantages:

[0018] (1) The green and low-carbon liquid enhanced evaporation equipment of the present invention utilizes wind and solar energy in the local natural environment to treat wastewater discharged into the evaporation pond during the in-situ leaching uranium mining process in a green and low-carbon manner. That is, it uses local wind and solar energy to enhance the evaporation treatment of wastewater generated by in-situ leaching uranium mines. The physical principle of this method is wind energy-enhanced evaporation, which mainly expands the evaporation area of ​​the liquid surface. That is, the acid liquid in the evaporation pond is pumped out by a water pump and sprayed onto the cloth curtain to increase the liquid surface area. The buoyancy is used to make the spraying device float in the evaporation pond, and finally a green and low-carbon liquid enhanced evaporation equipment is made.

[0019] (2) This invention accelerates the evaporation rate of water under the action of wind and solar energy, and has good economic efficiency, rationality and application prospects. Compared with the natural evaporation of wastewater in the evaporation pond, this equipment system can significantly increase the amount of wastewater evaporated and significantly reduce the land area required for the construction of the evaporation pond. In addition, because the equipment adopts a floating design, it can float completely in the evaporation pond without occupying land area and without posing a risk of soil pollution.

[0020] (3) This invention takes into account the influence of wind direction on water evaporation and incorporates a digital control system, which can dynamically adjust the angle between the curtain and the wind direction according to changes in the actual wind direction, ensuring efficient utilization of wind energy. The equipment adopts an automated control system, which can realize automated operation and remotely control the start and stop commands of the float-type CNC spray evaporator.

[0021] (4) The green and low-carbon liquid enhanced evaporation equipment of the present invention can increase the evaporation rate to 2-6 times that of the original natural evaporation in the same water surface space (the evaporation rate increases differently in different regions and under different meteorological conditions). Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the green and low-carbon liquid-enhanced evaporation equipment of the present invention;

[0024] Figure 2 This is a partial structural schematic diagram of the green and low-carbon liquid enhanced evaporation equipment of the present invention;

[0025] Figure 3 This is a partial structural schematic diagram of the green and low-carbon liquid enhanced evaporation equipment of the present invention;

[0026] Figure 4 This is a partial structural schematic diagram of the green and low-carbon liquid enhanced evaporation equipment of the present invention;

[0027] Figure 5 This is a schematic diagram of the spray pipeline in the green and low-carbon liquid enhanced evaporation equipment of the present invention;

[0028] Figure 6 This is a structural block diagram of the wind direction adaptive control unit in the green and low-carbon liquid enhanced evaporation equipment of the present invention;

[0029] Figure 7 This is a diagram of the monitoring system interface of the touch screen in the green and low-carbon liquid enhanced evaporation equipment of the present invention;

[0030] Figure 8 This is a diagram of the manual operation interface of the touch screen in the green and low-carbon liquid enhanced evaporation equipment of the present invention.

[0031] Figure 9 This is a diagram of the parameter setting interface of the touch screen in the green and low-carbon liquid enhanced evaporation equipment of the present invention;

[0032] The components include: 1. Floating platform; 2. Suspension frame; 3. Spray pipe; 301. Water supply pipe; 302. Spray pipe; 303. Spray hole; 4. Fixing plate; 5. Annular plate; 6. Float; 7. Square frame; 8. Output shaft; 9. First bearing bracket; 10. First bearing; 11. Circular frame; 12. Second bearing bracket; 13. Second bearing; 14. Stepper motor; 15. Stepper driver; 16. Wind speed and direction sensor; 17. Angle sensor; 18. Controller; 19. Touch screen. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] The purpose of this invention is to provide a green and low-carbon liquid-enhanced evaporation device to solve the problems existing in the prior art and improve the evaporation efficiency of wastewater in the evaporation tank.

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 9 As shown, this embodiment provides a green and low-carbon liquid enhanced evaporation device, including a floating platform 1, a suspended frame 2, a water pumping device, a spray system, an evaporation curtain, and a wind direction adaptive control unit.

[0037] The floating platform 1 floats on the surface of the water in the pool (i.e., the evaporation pool used in the in-situ leaching uranium mining process). The floating platform 1 includes a square frame 7 and multiple pontoons 6, all of which are located below the square frame 7 and are fixedly connected to it. The pontoons 6 are made of polypropylene. With the help of the pontoons 6, the floating platform 1 can float stably in the pool without occupying land area.

[0038] The suspension frame 2 is mounted on the floating platform 1. In this embodiment, the suspension frame 2 serves as a support for suspending the evaporation curtains. Multiple evaporation curtains (not shown in the figure) are provided in this embodiment, all arranged parallel to each other and suspended from the suspension frame 2. The better the wastewater absorption performance of the evaporation curtain and the larger the wetted wastewater area, the more wastewater will evaporate. The suspension frame 2 is made of stainless steel. The core principle of this green and low-carbon liquid-enhanced evaporation method is to increase the natural evaporation rate by increasing the evaporation area. Therefore, evaporation curtains with good wettability and high corrosion resistance are required. Through small-scale simulated evaporation experiments in the laboratory, combined with the cost considerations for industrial application, W3011 type carbon fiber woven fabric was chosen to manufacture the evaporation curtains.

[0039] A pumping device is used to extract water from the pool. The outlet of the pumping device is connected to the inlet of the spray system. The evaporation curtain is suspended in the air above the pool. After the water in the pool is pumped out by the pumping device, it is sprayed onto the evaporation curtain by the spray system. The pumping device uses an acid-resistant submersible pump and is fixed on the floating platform 1. The pumping port of the pumping device is connected to a pumping pipe, and the pumping end of the pumping pipe is placed in the water in the pool.

[0040] The spraying device includes a water supply pipe (not shown in the figure) and a spraying pipe 3. The spraying pipe 3 is connected to the outlet of the pumping device through the water supply pipe. The spraying pipe 3 is fixed above the suspension frame 2. The spraying pipe 3 includes two water supply pipes 301 and multiple spraying pipes 302 arranged at intervals. Each spraying pipe 302 is connected to a water supply pipe 301 at both ends. The water supply pipes 301 are connected to the outlet of the pumping device through the water supply pipe. The spraying pipes 302 are provided with multiple spray holes 303 facing the evaporation cloth curtain, so that the entire evaporation cloth curtain can be covered with water, which greatly improves the evaporation rate.

[0041] The wind direction adaptive control unit includes a drive unit, a wind vane, an angle sensor 17, and a controller 18. The drive unit is fixed on the floating platform 1 and can drive the suspension frame 2 to rotate horizontally relative to the floating platform 1. The drive unit is fixedly connected to the square frame 7. The wind vane is used to detect the wind direction. In this embodiment, the wind vane is fixed on the floating platform 1 or the suspension frame 2, or placed in the air near the pool. The angle sensor 17 is fixed on the suspension frame 2 and is used to detect the angle of the suspension frame 2. Since the evaporation curtain is suspended on the suspension frame 2, and the bracket on the suspension frame 2 for suspending the evaporation curtain is fixed on the suspension frame 2, the angle of the evaporation curtain is obtained by detecting the angle of the suspension frame 2.

[0042] The drive unit, angle sensor 17, and wind speed and direction sensor 16 in the wind vane are respectively connected to the controller 18. The controller 18 can drive the suspension frame 2 to rotate according to the wind speed and direction signals fed back by the wind speed and direction sensor 16 and the signals fed back by the angle sensor 17, so that the curtain surface of the evaporation curtain on the suspension frame 2 is parallel to the wind direction. This enables the curtain to dynamically adjust the angle between the curtain and the wind direction according to the actual wind direction changes, ensuring efficient use of wind energy and maximizing the evaporation rate.

[0043] A fixed plate 4 is fixedly installed at the center of the bottom end of the suspension frame 2. The output shaft 8 of the drive device is vertical and fixedly connected to the fixed plate 4. A first sliding track is provided on the square frame 7. The first sliding track includes at least three first support mechanisms arranged circumferentially around the output shaft 8. The first support mechanism includes a vertical first bearing bracket 9 and a first bearing 10 installed at the top of the first bearing bracket 9. The first bearing bracket 9 is fixedly connected to the square frame 7. The rotation shaft of the first bearing 10 is distributed radially along the output shaft 8. The first bearing 10 is in rolling engagement with the fixed plate 4.

[0044] A second sliding track is also provided on the square frame 7. The second sliding track includes a circular frame 11 and a plurality of second support mechanisms evenly arranged circumferentially on the circular frame 11. The circular frame 11 is horizontally fixed on the square frame 7 and is coaxial with the output shaft 8. The second support mechanism includes a vertical second bearing bracket 12 and a second bearing 13 installed at the top of the second bearing bracket 12. The second bearing bracket 12 is fixed to the square frame 7. The rotation axis of the second bearing 13 is distributed radially along the output shaft 8. The second bearing 13 is in rolling engagement with the annular plate 5 fixed at the bottom of the suspension frame 2. The first bearing 10 and the second bearing 13 are both made of polytetrafluoroethylene.

[0045] The drive unit uses a stepper motor 14, and the wind direction adaptive control unit also includes a stepper driver 15 for driving the stepper motor 14, and the stepper driver 15 signals to the controller 18.

[0046] The wind direction adaptive control unit also includes a process data acquisition and monitoring device connected to the controller 18. This device uses a touchscreen 19, specifically a Siemens SMART700 series 7-inch touchscreen. The touchscreen 19 serves as both an input and control device for the controller 18, displaying the wind direction angle, sail angle, and current control mode. The sail angle is the angle of the suspension frame 2. The touchscreen 19 provides a user interface for device operation, parameter setting, and alarm querying. The main interface displays the current wind direction angle, sail angle, system status, alarm status, and power-on self-test delay time in real time. The manual function allows manual adjustment of the sail angle. Parameter settings include the wind direction zero point, sail zero point, upper and lower limits of the sail angle accuracy, rotation range, and sail alarm point. Furthermore, the motor's steps per revolution and screw pitch can be adjusted according to the required reducer.

[0047] The controller 18 collects various signals, performs corresponding logical operations, arithmetic operations, timing control, and counting control within its internal system according to control requirements, and outputs the corresponding operation results through the output device to achieve precise control of the stepper motor 14.

[0048] The wind direction adaptive control unit has two control modes: automatic and manual. In manual mode, the angle and speed relative to the current position are set through the touch screen 19 interface to rotate the curtain until it reaches the specified position. In automatic mode, the controller 18 automatically controls the stepper motor 14 to rotate according to the current wind direction and position, so as to keep the evaporation curtain surface at the same angle as the wind direction.

[0049] It should be noted that the suspension frame 2 can adopt a sub-cell design, that is, the total suspension frame 2 is composed of multiple sub-suspension frames connected in parallel, each sub-suspension frame is equipped with a separate spraying device, and each sub-suspension frame can operate independently or work together simultaneously.

[0050] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A green and low-carbon liquid-enhanced evaporation device, characterized in that: The system includes a water pumping device, a spray system, and evaporation curtains. The water pumping device is used to pump water from a pool, and its outlet is connected to the inlet of the spray system. The evaporation curtains are suspended in the air above the pool. After being pumped out, the water from the pool is sprayed onto the evaporation curtains by the spray system. The system also includes a floating platform and a suspension frame. The floating platform floats on the water surface in the pool, and the suspension frame is mounted on the floating platform. Multiple evaporation curtains are present, all suspended from the suspension frame. All the evaporation curtains are arranged parallel to each other. The green and low-carbon liquid-enhanced evaporation equipment also includes an adaptive wind direction control unit. The wind direction adaptive control unit includes a drive device, a wind vane, an angle sensor, and a controller. The drive device is fixed to the floating platform and can drive the suspension frame to rotate horizontally relative to the floating platform. The wind vane is fixed to the floating platform or the suspension frame, and the angle sensor is fixed to the suspension frame. The drive device, the angle sensor, and the wind speed and direction sensor in the wind vane are respectively connected to the controller. The controller can drive the suspension frame to rotate based on the wind speed and direction signals fed back by the wind speed and direction sensors and the signals fed back by the angle sensor, so that the wind vane... The evaporation curtain is parallel to the wind direction; the floating platform includes a square frame and multiple floats, all of which are located below the square frame and fixedly connected to it; the drive device is fixedly connected to the square frame; a fixing plate is fixedly provided at the center of the bottom end of the suspension frame; the output shaft of the drive device is vertical and fixedly connected to the fixing plate; a first sliding track is provided on the square frame, the first sliding track includes at least three first support mechanisms arranged circumferentially around the output shaft; each first support mechanism includes a vertical first bearing bracket and a first bearing installed at the top of the first bearing bracket; the first bearing bracket is fixedly connected to the square frame. The first bearing has its rotating shaft distributed radially along the output shaft, and it rolls into contact with the fixed plate. A second sliding track is also provided on the square frame. The second sliding track includes a circular frame and multiple second support mechanisms evenly distributed circumferentially on the circular frame. The circular frame is horizontally fixed on the square frame and coaxial with the output shaft. The second support mechanism includes a vertical second bearing bracket and a second bearing mounted on the top of the second bearing bracket. The second bearing bracket is fixedly connected to the circular frame. The rotating shaft of the second bearing is distributed radially along the output shaft, and the second bearing rolls into contact with an annular plate fixed at the bottom of the suspension frame.The suspended frame adopts a segmented design, and the overall suspended frame is composed of multiple segmented suspended frames connected in parallel, with the sprinkler system independently installed on each segmented suspended frame.

2. The green and low-carbon liquid-enhanced evaporation equipment according to claim 1, characterized in that: The pumping device is a submersible pump, which is fixed on the floating platform; the pumping port of the pumping device is connected to a pumping pipe, and the pumping end of the pumping pipe is placed in the water of the pool.

3. The green and low-carbon liquid-enhanced evaporation equipment according to claim 1, characterized in that: The spray system includes a water supply pipe and a spray pipe. The spray pipe is connected to the outlet of the pumping device through the water supply pipe. The spray pipe is fixed above the suspended frame. The spray pipe includes multiple spray pipes spaced apart. Each spray pipe has a spray hole facing the evaporation curtain.

4. The green and low-carbon liquid-enhanced evaporation equipment according to claim 1, characterized in that: The driving device uses a stepper motor, and the wind direction adaptive control unit also includes a stepper driver for driving the stepper motor, and the stepper driver is signal-connected to the controller.

5. The green and low-carbon liquid-enhanced evaporation equipment according to claim 1, characterized in that: The wind direction adaptive control unit also includes a process data acquisition and monitoring device connected to the controller. The process data acquisition and monitoring device is a touch screen. The touch screen can be used as an input and control device for the controller. The touch screen can display the wind direction angle and the curtain angle, and the curtain angle is the angle of the suspension frame.

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