High-salt wastewater concentration device

Abstract

The invention discloses a high-salt wastewater concentration device, comprising: a concentration chamber, which is cylindrical, a vertical rotating shaft is rotatably arranged at the central axis position of the concentration chamber, the internal hollow upper end of the rotating shaft is open, and a plurality of gear-shaped nozzle components are fixedly sleeved on the outer wall of the rotating shaft, and each flange portion of the gear-shaped nozzle component is a liquid nozzle; a fixed plate, which is circular, horizontally arranged, and fixedly sleeved on the upper end of the rotating shaft; a first annular plate, which is vertically fixed on the lower surface of the fixed plate, and a plurality of first circular holes are evenly arranged on the first annular plate; an air source heat pump, which is connected to the gas inlet arranged at the lower end of the side wall of the concentration chamber; a circulation pipeline, on which a circulation pump is arranged, one end of the circulation pipeline is connected to the inlet of the upper end of the rotating shaft, and the other end is connected to the liquid outlet arranged on the bottom plate of the concentration chamber. The device can conveniently and efficiently concentrate high-salt wastewater, so that the salts in the wastewater are crystallized and precipitated, and has a simple structure and low cost.

Description

Technical Field

[0001] The present invention relates to the field of high-salinity wastewater treatment, and more specifically, to a high-salinity wastewater concentration device. Background Art

[0002] Industrial high-salt wastewater refers to wastewater with a high content of soluble salts, with a total salt content of at least 1%. High-salt wastewater comes from chemical plants and the collection and processing of oil and natural gas. Based on environmental protection needs, high-salt wastewater must be desalted before discharge, otherwise it will cause serious pollution to the environment.

[0003] At present, the main methods for desalting high-salt wastewater include ion exchange, electrodialysis, RO reverse osmosis, electrosorption, and evaporation desalination. The RO reverse osmosis method uses a high-cost osmotic membrane, which is also easy to clog and needs to be cleaned frequently. The evaporation desalination method uses evaporation and crystallization to separate the salt from the water in the wastewater. However, the existing desalination methods through evaporators have the following problems: complex operation, such as the complex multi-effect evaporator system, which requires high technical and professional requirements; large footprint and high site requirements; high investment costs. Summary of the invention

[0004] The invention provides a high-salt wastewater concentrating device, which can conveniently and efficiently concentrate high-salt wastewater, so that salts in the wastewater are crystallized and precipitated, and has a simple structure and low cost.

[0005] In order to achieve these purposes and other advantages of the present invention, a high-salinity wastewater concentration device is provided, comprising:

[0006] A concentrating chamber, which is cylindrical, has a vertical rotating shaft rotatably arranged at the central axis position of the concentrating chamber, wherein the interior of the rotating shaft is hollow and the upper end is open, and a plurality of gear-shaped spray head components are fixedly sleeved on the outer wall of the rotating shaft at equal intervals, each gear-shaped spray head component is hollow inside, and each flange portion of each gear-shaped spray head component is a liquid spray port and is in communication with the internal cavity of the rotating shaft;

[0007] A fixed plate, which is circular, horizontally arranged, and fixedly sleeved on the upper end of the rotating shaft;

[0008] a first annular plate, which is vertically fixed on the lower surface of the fixed plate so that the rotating shaft is located at the center of the first annular plate, wherein a plurality of first circular holes are evenly arranged on the first annular plate;

[0009] an air source heat pump, which is connected to a gas inlet disposed at a lower end of the side wall of the concentration chamber so as to allow hot air of high temperature and high pressure to enter the concentration chamber;

[0010] A circulation pipeline is provided with a circulation pump, one end of the circulation pipeline is connected with the upper end inlet of the rotating shaft, and the other end is connected with the liquid outlet arranged on the bottom plate of the concentration chamber.

[0011] Preferably, the high-salt wastewater concentrating device is provided with a vertical rotating shaft rotatably disposed at the central axis position of the concentrating chamber, and specifically comprises:

[0012] A driving motor is arranged below the bottom plate of the concentration chamber, and the lower end of the rotating shaft passes through the bottom plate of the concentration chamber and is connected to the driving motor;

[0013] A first bearing is disposed through the top plate of the concentrating chamber, the upper end of the rotating shaft is disposed inside the first bearing and the end portion inlet passes through the first bearing;

[0014] A spherical connector is hollow inside and is arranged above the top plate of the concentration chamber. One end of the spherical connector is fixedly connected and communicated with the circulation pipeline, and the other end is rotatably connected and communicated with the upper end inlet of the rotating shaft.

[0015] Preferably, the high-salt wastewater concentrating device also includes a second annular plate, which is vertically fixed on the lower surface of the fixed plate, so that the first annular plate is located inside the second annular plate, wherein a plurality of second circular holes are evenly arranged on the second annular plate, wherein the aperture of the second circular hole is smaller than the aperture of the first circular hole.

[0016] Preferably, the high-salt wastewater concentration device further comprises:

[0017] A first three-way valve, which is arranged on the circulation pipeline, wherein a first interface pipe and a second interface pipe of the first three-way valve are both connected to the circulation pipeline;

[0018] a crystallization chamber, the liquid inlet of which is connected to the third interface pipe of the first three-way valve;

[0019] Wherein, the circulation pump is arranged between the liquid outlet of the concentration chamber and the first three-way valve.

[0020] Preferably, the high-salt wastewater concentration device further comprises:

[0021] A second three-way valve, which is arranged on the circulation pipeline, wherein the first interface pipe and the second interface pipe of the second three-way valve are both connected to the circulation pipeline, and the second three-way valve is located between the first three-way valve and the upper end inlet of the rotating shaft;

[0022] A wastewater raw liquid chamber, wherein the liquid outlet thereof is connected to the third interface pipe of the second three-way valve;

[0023] Wherein, a liquid pump is also arranged between the wastewater raw liquid chamber and the third interface pipe of the second three-way valve.

[0024] Preferably, the high-salt wastewater concentration device further comprises a photovoltaic power generation device, which comprises:

[0025] A solar photovoltaic panel, which is arranged on one side of the concentration chamber;

[0026] A battery pack electrically connected to the solar photovoltaic panel;

[0027] Wherein, the circulation pump, the driving motor, the air source heat pump and the liquid pump are all electrically connected to the battery pack.

[0028] Preferably, the high-salt wastewater concentration device further comprises:

[0029] A liquid recovery chamber, a steam outlet is also arranged on the top plate of the concentration chamber, and the steam outlet is connected to the liquid recovery chamber through a steam pipe; wherein the air pipe of the air source heat pump passes through the upper space of the liquid recovery chamber and then is connected to the outside.

[0030] Preferably, the high-salt wastewater concentrating device is provided with a plurality of third circular holes on the fixed plate.

[0031] Preferably, in the high-salt wastewater concentrating device, a plurality of gear-shaped nozzle components fixedly mounted at equal intervals on the outer wall of the rotating shaft are located in the middle and upper parts of the rotating shaft.

[0032] The present invention has at least the following beneficial effects:

[0033] Since the rotating shaft arranged at the central axis position of the concentration chamber is arranged in a rotatable manner, and the interior of the rotating shaft is hollow and the upper end is open, a plurality of gear-shaped nozzle components are fixedly sleeved at equal intervals on the outer wall of the rotating shaft, and the interior of each gear-shaped nozzle component is hollow, and each flange portion of each gear-shaped nozzle component is a liquid nozzle. When the high-salt wastewater enters the internal space of the rotating shaft rotating at high speed, the high-salt wastewater is sprayed out through the multiple flange liquid nozzles of the gear-shaped nozzle component and sprayed on the first annular plate rotating with the rotating shaft, and a part of the high-salt wastewater is thrown out again through the first circular hole on the first annular plate, and the high-salt wastewater hitting the first annular plate will also be thrown from one position on the first annular plate to another position, so the high-salt wastewater sprayed from the rotating shaft will form small water droplets or water mist. The air source heat pump arranged can compress the air near the concentration chamber to form high-temperature and high-pressure hot air. After the high-temperature and high-pressure hot air enters the concentration chamber, the formed small water droplets or water mist are heated to evaporate and concentrate the high-salt wastewater. A circulation pipe is provided, on which a circulation pump is provided, one end of the circulation pipe is connected to the inlet of the upper end of the rotating shaft, and the other end is connected to the liquid outlet provided on the bottom plate of the concentration chamber. After the high-salt wastewater after evaporation and concentration comes out of the liquid outlet, it enters the rotating shaft again under the action of the circulation pump, is sprayed out, enters the concentration chamber, and continues to evaporate, and the cycle is repeated until the salt content of the high-salt wastewater reaches the saturation concentration, and the temperature of the concentrated liquid is reduced, and the crystallized salt is precipitated. In summary, the high-salt wastewater concentration device provided by the present invention is simple to operate, simple in structure, and low in manufacturing cost.

[0034] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic cross-sectional structure diagram of a high-salt wastewater concentration device in an embodiment of the present invention;

[0036] Figure 2 A top view of a gear-shaped nozzle component in an embodiment of the present invention;

[0037] Figure 3 It is a bottom view of the high-salt wastewater concentrating device in an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0039] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0040] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0041] like Figure 1 As shown, an embodiment of the present invention provides a high-salt wastewater concentrating device, comprising: a concentrating chamber 1, which is cylindrical, and a vertical rotating shaft 2 is rotatably arranged at the central axis position of the concentrating chamber 1, wherein the interior of the rotating shaft 2 is hollow and the upper end is open, and a plurality of gear-shaped nozzle components 6 are fixedly sleeved at equal intervals on the outer wall of the rotating shaft 2, the interior of each gear-shaped nozzle component 6 is hollow, and each flange portion of each gear-shaped nozzle component 6 is a liquid nozzle and is communicated with the internal cavity of the rotating shaft 2; a fixing plate 3, which is circular, horizontally arranged, and fixedly sleeved on the upper end of the rotating shaft 2. ; a first annular plate 4, which is vertically fixed on the lower surface of the fixed plate 3 so that the rotating shaft 2 is located at the center of the first annular plate 4, wherein a plurality of first circular holes 29 are evenly arranged on the first annular plate 4; an air source heat pump 10, which is connected to the gas inlet 15 arranged at the lower end of the side wall of the concentration chamber 1 to allow high-temperature and high-pressure hot air to enter the interior of the concentration chamber 1; a circulation pipe 28, on which a circulation pump 17 is arranged, one end of the circulation pipe 28 is connected to the upper end inlet of the rotating shaft 2, and the other end is connected to the liquid outlet 16 arranged on the bottom plate of the concentration chamber 1.

[0042] In the above embodiment, since the rotating shaft 2 arranged at the central axis position of the concentration chamber 1 is arranged in a rotatable manner, and the interior of the rotating shaft 2 is hollow and the upper end is open, a plurality of gear-shaped nozzle components 6 are fixedly sleeved at equal intervals on the outer wall of the rotating shaft 2, and the interior of each gear-shaped nozzle component 6 is hollow, and each flange portion of each gear-shaped nozzle component 6 is a liquid nozzle. When the high-salt wastewater enters the internal space of the rotating shaft 2 rotating at a high speed, the high-salt wastewater is sprayed out through the multiple flange liquid nozzles of the gear-shaped nozzle component 6, and sprayed on the first annular plate 4 rotating with the rotating shaft 2, a part of the high-salt wastewater is thrown out again through the first circular hole 29 on the first annular plate 4, and the high-salt wastewater hitting the first annular plate 4 will also be thrown from one position on the first annular plate 4 to another position, so the high-salt wastewater sprayed from the rotating shaft 2 will form small water droplets or water mist. The air source heat pump 10 can compress the air near the concentration chamber 1 to form high-temperature and high-pressure hot air. After the high-temperature and high-pressure hot air enters the concentration chamber 1, it heats the small water droplets or water mist formed, so that the high-salt wastewater is evaporated and concentrated. A circulation pipe 28 is provided, on which a circulation pump 17 is provided. One end of the circulation pipe 28 is connected to the upper end inlet of the rotating shaft 2, and the other end is connected to the liquid outlet 16 provided on the bottom plate of the concentration chamber 1. After the evaporated and concentrated high-salt wastewater comes out of the liquid outlet 16, it enters the rotating shaft 2 again under the action of the circulation pump 17, is ejected, enters the concentration chamber 1, and continues to evaporate, and the cycle is repeated until the salt content of the high-salt wastewater reaches the saturation concentration, and the concentrated liquid temperature is reduced, and the crystallized salt is precipitated.

[0043] In the above embodiment, when specifically set, the diameter of the rotating shaft 2 cannot be too thin, and can be specifically set according to the diameter of the concentration chamber 1 and the diameter of the first annular plate 4. Preferably, if the diameter of the concentration chamber 1 is 100 cm and the diameter of the first annular plate 4 is 60 cm, the diameter of the rotating shaft 2 can be set to 10-15 cm, and the diameter of the flange of the gear-shaped nozzle component 6 is controlled to be about 20 cm. The number of gear-shaped nozzle components 6 is not specifically limited in this embodiment. However, in order to make the process of heating the high-salt wastewater liquid as long as possible, the multiple gear-shaped nozzle components 6 fixedly sleeved at equal intervals on the outer wall of the rotating shaft 2 are located in the middle and upper parts of the rotating shaft 2, and the height of the first annular plate 4 is four-sevenths to six-sevenths of the length of the rotating shaft 2. When the gear-shaped nozzle component 6 is only set in the middle and upper parts, the lower part of the rotating shaft 2 is set to be solid. The height of the concentration chamber 1 is not specifically limited in this embodiment. The higher the height of the concentration chamber 1, the longer the process of heating the high-salt wastewater. In order to allow the evaporated and concentrated high-salinity wastewater to quickly enter the liquid outlet 16, the bottom end of the side wall of the concentration chamber 1 is contracted inward, and the liquid outlet 16 is set at the lowest position. The air source heat pump 10 can be an existing one on the market, and this embodiment will not be described in detail.

[0044] In one specific embodiment, the high-salt wastewater concentrating device is provided with a vertical rotating shaft 2 rotatably disposed at the central axis position of the concentrating chamber 1, and specifically comprises:

[0045] A driving motor 7 is disposed below the bottom plate of the concentrating chamber 1, and the lower end of the rotating shaft 2 penetrates through the bottom plate of the concentrating chamber 1 and is connected to the driving motor 7;

[0046] A first bearing 23 is disposed through the top plate of the concentration chamber 1, the upper end of the rotating shaft 2 is disposed inside the first bearing 23 and the end inlet passes through the first bearing 23;

[0047] The spherical connector 24 is hollow inside and is arranged above the top plate of the concentration chamber 1. One end of the spherical connector 24 is fixedly connected and communicated with the circulation pipe 28, and the other end is rotatably connected and communicated with the upper end inlet of the rotating shaft 2.

[0048] In the above embodiment, when specifically arranged, a second bearing 8 is provided through the bottom plate of the concentrating chamber 1, and the lower end of the rotating shaft 2 passes through the second bearing 8 and is connected to the driving motor 7. In order to prevent the waste water of the concentrating chamber 1 from leaking from the second bearing 8 provided on the bottom plate of the concentrating chamber 1, a waterproof component 9 may be fixedly provided around the rotating shaft 2 on the bottom plate of the concentrating chamber 1, and the waterproof component 9 will not affect the rotation of the rotating shaft 2. Preferably, the cross section of the waterproof component 9 is triangular, so that the waste water will not stay at the position of the rotating shaft 2. For the spherical connector 24, since the lower end, i.e., the other end, is rotatably connected and communicated with the upper end inlet of the rotating shaft 2, in order to prevent leakage at the connection between the rotating shaft 2 and the spherical connector 24, when the spherical connector 24 is specifically set, the lower end cross-section of the internal liquid passage 27 of the spherical connector 24 is in an inverted trapezoidal shape. When the upper end inlet of the rotating shaft 2 is inserted into the interior of the spherical connector 24, the lower trapezoidal opening is just located inside the upper end inlet of the rotating shaft 2. When the spherical connector 24 is fixed above the top plate of the concentration chamber 1 through a fixing frame 26, since the spherical connector 24 is rotatably connected to the upper end of the rotating shaft 2, it will not affect the rotation of the rotating shaft 2. In order to facilitate the rotation of the upper end of the rotating shaft 2 relative to the spherical connector 24, a third bearing 25 can also be provided at the lower end of the spherical connector 24, and the upper end of the rotating shaft 2 is provided inside the third bearing 25.

[0049] In one specific embodiment, the high-salt wastewater concentrating device also includes a second annular plate 5, which is vertically fixed on the lower surface of the fixed plate 3, so that the first annular plate 4 is located inside the second annular plate 5, wherein a plurality of second circular holes 30 are evenly arranged on the second annular plate 5, wherein the aperture of the second circular hole 30 is smaller than the aperture of the first circular hole 29.

[0050] In the above specific embodiment, a second annular plate 5 is further provided, and the high-salt wastewater thrown out from the first circular hole hits the second annular plate 5, and a part of the high-salt wastewater is thrown out from the second circular hole again, and a part of the high-salt wastewater is thrown from one position to another position under the high-speed rotation of the second annular plate 5, further breaking the high-salt wastewater into smaller water droplets or water mist. When the second annular plate 5 is provided, preferably, if the diameter of the concentration chamber 1 is 100 cm, the diameter of the first annular plate 4 is 40 cm, and the diameter of the second annular plate 5 is 70 cm.

[0051] In one specific embodiment, the high-salt wastewater concentration device further comprises:

[0052] A first three-way valve 18, which is arranged on the circulation pipeline 28, wherein the first interface pipe and the second interface pipe of the first three-way valve 18 are both connected to the circulation pipeline 28;

[0053] a crystallization chamber 19, whose liquid inlet is connected to the third interface pipe of the first three-way valve 18;

[0054] The circulation pump 17 is disposed between the liquid outlet 16 of the concentration chamber 1 and the first three-way valve 18 .

[0055] A second three-way valve 22, which is arranged on the circulation pipeline 28, wherein the first interface pipe and the second interface pipe of the second three-way valve 22 are both connected to the circulation pipeline 28, and the second three-way valve 22 is located between the first three-way valve 18 and the upper end inlet of the rotating shaft 2;

[0056] The wastewater raw liquid chamber 20, whose liquid outlet is connected to the third interface pipe of the second three-way valve 22;

[0057] A liquid pump 21 is further provided between the wastewater raw liquid chamber 20 and the third interface pipe of the second three-way valve 22 .

[0058] In the above embodiment, the first three-way valve 18 is provided to facilitate the transmission of the concentrated saturated high-salinity wastewater to the crystallization chamber 19 for crystallization; the second three-way valve 22 is provided to facilitate the transmission of the wastewater in the wastewater stock liquid chamber 20 to the concentration chamber 1 for evaporation and concentration. In the specific setting, the first interface pipe of the first three-way valve 18 is connected to the liquid outlet 16 of the concentration chamber 1, the second joint pipe of the first three-way valve 18 is connected to the first interface pipe of the second three-way valve 22, and the second interface pipe of the second three-way valve 22 is connected to the spherical connector 24. The specific operation process is as follows: Step 1, close the first interface pipe of the second three-way valve 22, so that the second interface pipe and the third interface pipe of the second three-way valve 22 are connected, so that the wastewater in the wastewater raw liquid chamber 20 enters the concentration chamber 1 for evaporation and concentration, and then close the third interface pipe of the second three-way valve 22, so that the first interface pipe and the second interface pipe of the second three-way valve 22 are connected; Step 2, close the third interface pipe of the first three-way valve 18, so that the first interface pipe and the second interface pipe of the first three-way valve 18 are connected, so that the concentrated liquid coming out of the liquid outlet 16 of the concentration chamber 1 enters the concentration chamber 1 again through the circulation pipe 28 until the high-salt wastewater in the concentration chamber 1 is in a salt saturated state; Step 3, close the second interface pipe of the first three-way valve 18, so that the first interface pipe and the third interface pipe of the first three-way valve 18 are connected, so that the concentrated high-salt wastewater enters the crystallization chamber 19, and after cooling, crystals are precipitated.

[0059] In one specific embodiment, the high-salinity wastewater concentration device further includes a photovoltaic power generation device, which includes:

[0060] A solar photovoltaic panel, which is arranged on one side of the concentration chamber 1;

[0061] A battery pack electrically connected to the solar photovoltaic panel;

[0062] The circulation pump 17 , the drive motor 7 , the air source heat pump 10 , and the liquid pump 21 are all electrically connected to the battery pack.

[0063] In the above embodiment, the photovoltaic power generation device can be any existing one on the market, and the specific structure and use process are not described in detail. The photovoltaic power generation device is used to provide power to the circulation pump 17, the drive motor 7, the air source heat pump 10, etc., which is both environmentally friendly and saves electricity costs.

[0064] In one specific embodiment, the high-salt wastewater concentration device further comprises:

[0065] The liquid recovery chamber 11 is provided with a steam outlet 14 on the top plate of the concentration chamber 1, and the steam outlet 14 is connected to the liquid recovery chamber 11 through a steam pipe; wherein the air pipe 12 of the air source heat pump 10 passes through the upper space of the liquid recovery chamber 11 and then communicates with the outside. wherein a plurality of third circular holes are provided on the fixing plate 3.

[0066] In the above embodiment, high-salt wastewater is evaporated in the concentration chamber 1, and the evaporated steam enters the liquid recovery chamber 11 through the steam outlet 14. After heat exchange with the air in the air duct 12 of the air source heat pump 10 in the liquid recovery chamber 11, it is condensed into water, and the condensed recovered water can be used for other purposes.

[0067] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0068] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A high-salt wastewater concentration device, characterized in that: include: A concentrating chamber, which is cylindrical, has a vertical rotating shaft rotatably arranged at the central axis position of the concentrating chamber, wherein the interior of the rotating shaft is hollow and the upper end is open, and a plurality of gear-shaped spray head components are fixedly sleeved on the outer wall of the rotating shaft at equal intervals, each gear-shaped spray head component is hollow inside, and each flange portion of each gear-shaped spray head component is a liquid spray port and is in communication with the internal cavity of the rotating shaft; A fixed plate, which is circular, horizontally arranged, and fixedly sleeved on the upper end of the rotating shaft; a first annular plate, which is vertically fixed on the lower surface of the fixed plate so that the rotating shaft is located at the center of the first annular plate, wherein a plurality of first circular holes are evenly arranged on the first annular plate; an air source heat pump, which is connected to a gas inlet disposed at a lower end of the side wall of the concentration chamber so as to allow hot air of high temperature and high pressure to enter the concentration chamber; A circulation pipeline, on which a circulation pump is arranged, one end of the circulation pipeline is connected to the inlet of the upper end of the rotating shaft, and the other end is connected to the liquid outlet arranged on the bottom plate of the concentration chamber; A spherical connector, which is hollow inside and is arranged above the top plate of the concentrating chamber, wherein one end of the spherical connector is fixedly connected to and communicated with the circulation pipeline, and the other end of the spherical connector is rotatably connected to and communicated with the upper end inlet of the rotating shaft; It also includes a second annular plate, which is vertically fixed on the lower surface of the fixed plate, so that the first annular plate is located inside the second annular plate, wherein a plurality of second circular holes are evenly arranged on the second annular plate, wherein the aperture of the second circular hole is smaller than the aperture of the first circular hole; It also includes: a liquid recovery chamber, a steam outlet is also arranged on the top plate of the concentration chamber, and the steam outlet is connected with the liquid recovery chamber through a steam pipe; wherein the air pipe of the air source heat pump passes through the upper space of the liquid recovery chamber and then is connected with the outside.

2. The high-salt wastewater concentration device according to claim 1, characterized in that: A vertical rotating shaft is rotatably arranged at the central axis position of the concentrating chamber, specifically comprising: A driving motor is arranged below the bottom plate of the concentration chamber, and the lower end of the rotating shaft passes through the bottom plate of the concentration chamber and is connected to the driving motor; A first bearing is disposed through the top plate of the concentrating chamber, the upper end of the rotating shaft is disposed inside the first bearing, and an end portion inlet passes through the first bearing.

3. The high-salt wastewater concentration device according to claim 2, characterized in that: Also includes: A first three-way valve, which is arranged on the circulation pipeline, wherein a first interface pipe and a second interface pipe of the first three-way valve are both connected to the circulation pipeline; crystallization chamber, whose liquid inlet is connected to the third interface pipe of the first three-way valve; Wherein, the circulation pump is arranged between the liquid outlet of the concentration chamber and the first three-way valve.

4. The high-salt wastewater concentration device according to claim 3, characterized in that: Also includes: A second three-way valve, which is arranged on the circulation pipeline, wherein the first interface pipe and the second interface pipe of the second three-way valve are both connected to the circulation pipeline, and the second three-way valve is located between the first three-way valve and the upper end inlet of the rotating shaft; A wastewater raw liquid chamber, wherein the liquid outlet thereof is connected to the third interface pipe of the second three-way valve; Wherein, a liquid pump is also arranged between the wastewater raw liquid chamber and the third interface pipe of the second three-way valve.

5. The high-salt wastewater concentration device according to claim 4, characterized in that: Also included is a photovoltaic power generation device, which includes: A solar photovoltaic panel, which is arranged on one side of the concentration chamber; A battery pack electrically connected to the solar photovoltaic panel; Wherein, the circulation pump, the driving motor, the air source heat pump and the liquid pump are all electrically connected to the battery pack.

6. The high-salt wastewater concentration device according to claim 1, characterized in that: A plurality of third circular holes are arranged on the fixing plate.

7. The high-salt wastewater concentration device according to claim 1, characterized in that: A plurality of gear-shaped spray head components are fixedly sleeved on the outer wall of the rotating shaft at equal intervals and are located at the middle and upper parts of the rotating shaft.

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