A type of crushing mechanical atomizing evaporator

Abstract

This utility model discloses a fragmentation-type mechanical atomizing evaporator, including a water spraying component and an atomizing component. The water spraying component includes an annular water distributor with multiple water outlets arranged circumferentially, the outlets being inclined upwards and facing the atomizing component. The atomizing component includes a hub and multiple long and short blades connected to the hub and arranged circumferentially, with the long and short blades spaced apart. This utility model can improve the atomization degree of water mist, increase utilization rate, and greatly improve the evaporation rate, possessing significant promotion and application value.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment, specifically a crushing mechanical atomizing evaporator. Background Technology

[0002] Large quantities of concentrated saline wastewater are generated during industrial production processes such as power generation, metallurgy, coal chemical industry, and food processing. How to efficiently and economically treat this wastewater has become an urgent environmental problem. Currently, there are two main technical routes for treating concentrated saline wastewater: thermal evaporation crystallization and evaporation pond atomization evaporation. Thermal evaporation crystallization technology mainly heats and evaporates the wastewater, ultimately dehydrating the salt into solids to achieve zero discharge. However, its treatment cost is extremely high, and the evaporation crystallization equipment has high material requirements, resulting in a large initial investment and making it difficult to treat large quantities of concentrated brine on a large scale. Evaporation pond technology utilizes the principle of natural evaporation, which has the advantages of low investment and relatively low operating costs. However, natural evaporation is slow, requires a large area, and suffers from drawbacks such as easy leakage during long-term storage, making it difficult to meet increasingly stringent environmental protection requirements.

[0003] To overcome the low efficiency of natural evaporation, mechanical atomizing evaporators have been developed in existing technologies. These evaporators significantly increase the contact surface area between droplets and air, thereby substantially improving evaporation efficiency. However, existing mechanical atomizing evaporators still have many shortcomings in practical applications. Achieving a more ideal atomization effect, further improving the evaporation efficiency of mechanical atomizing evaporators, and reducing energy consumption are the key challenges in research and development. Furthermore, existing equipment is prone to structural adhesion and blockage due to salt crystallization, affecting operational stability and making maintenance and cleaning extremely inconvenient, thus requiring urgent improvement. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a crushing mechanical atomizing evaporator to further improve the evaporation efficiency of the mechanical atomizing evaporator and reduce energy consumption.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A type of crushing mechanical atomizing evaporator:

[0007] Including water spray components and atomizing components;

[0008] The water spraying assembly includes an annular water distributor, which has multiple water outlets arranged circumferentially, with the water outlets tilted upwards and facing the atomizing assembly.

[0009] The atomizing component includes a hub and a plurality of long and short blades connected to the hub and arranged circumferentially, with the long and short blades arranged at intervals.

[0010] In this utility model, the annular water distributor is an annular water distribution pipe, and the water distribution port is set on the annular water distribution pipe. The water distribution port has a conical constriction structure.

[0011] In this invention, the water distribution port is set at an angle of 60-80° upwards from the horizontal plane.

[0012] In this invention, the ratio of the water distribution width at the water distribution port on the annular water distribution pipe to the rotation diameter of the atomizing component is 1:3~4. This arrangement allows the water distribution port to be located within the low-pressure vortex zone generated by the impeller rotation, so that the high-speed atomized jet is quickly carried away by centrifugal force to reduce clogging. If the ratio is too small, the water distribution width is equivalent to a small rotation diameter. In this case, although the water distribution port is located within the low-pressure vortex zone, the centrifugal suction effect on the jet is significantly weakened due to the low linear velocity of the area. The jet is difficult to be sucked in and cannot effectively enter the blade's breaking area, increasing the risk of clogging. Conversely, if the ratio is too large, the water distribution width is equivalent to a large rotation diameter, resulting in some jets falling back into the evaporation pond unbroken or insufficiently broken, causing energy waste.

[0013] In this invention, both the long blade and the short blade are arc-shaped curved surface structures, and the far ends of the long blade and the short blade are provided with oblique cut structures.

[0014] In this invention, the angle between the long blade and the vertical plane is 15-25°, and the angle between the short blade and the vertical plane is 25-35°.

[0015] In this invention, the length ratio of the short blade to the long blade is 1:1.4~1.5.

[0016] In this invention, the atomizing component is connected to a driving component, which includes a driving motor disposed at the bottom of the water spraying component, and a protective shell is disposed on the outside of the driving motor.

[0017] In this invention, the evaporator further includes a floating island assembly disposed at the bottom of the drive motor. The floating island assembly includes a support base and floats connected to the support base. The support base is a cross-shaped base, and multiple floats are evenly distributed at the tail end of the cross. The support base and the protective shell are connected by a support rod.

[0018] In this invention, the evaporator also includes a submersible pump, which is fixed to the bottom of the support base and connected to the annular water distributor via a water supply pipe.

[0019] Beneficial effects: The crushing mechanical atomizing evaporator of this utility model, through the unique arrangement of the atomizing component and the water spraying component, generates a high-speed atomized jet that is quickly carried away from the water distribution port area by the centrifugal force generated by the high-speed rotating blades, reducing the clogging of the water distribution port by brine. After the high-speed atomized jet is sucked upward into the interior of the blades, the long blades bear the main jet of water, while the short blades further assist in the crushing of the splashed droplets between the long blades. After the droplets are fully accelerated and crushed, they are thrown out from the edge of the blades, thereby making the atomization degree of the ejected water mist better, improving the utilization rate, and greatly increasing the evaporation rate.

[0020] In this invention, the alternating long and short blades, staggered inclination angles, and inwardly curved arc-shaped blades can more effectively catch and intercept the sprayed water mist, resulting in higher breaking efficiency and avoiding excessive local wear. Furthermore, compared to existing breaking-type evaporators, this invention, through optimized water distribution and a stepped breaking method with long and short blades, results in finer atomized high-salt water breaking particles, improved water mist utilization and evaporation rate, and extended maintenance cycles. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the atomizing component in a preferred embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the annular water distributor in a preferred embodiment of the present invention.

[0024] The components include: 1. Water spray assembly; 11. Annular water distributor; 12. Water distribution port; 13. First water supply pipe; 14. Second water supply pipe; 2. Atomizing assembly; 21. Long blade; 22. Short blade; 23. Oblique cut structure; 3. Floating island assembly; 31. Support base; 32. Float; 33. Support rod; 4. Submersible pump; 5. Protective shell; 51. Inclined top cover. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0026] Example 1

[0027] like Figure 1 As shown, the crushing mechanical atomizing evaporator of this utility model includes a water spray assembly 1, an atomizing assembly 2, a floating island assembly 3, and a submersible pump 4. The floating island assembly 3 floats on the surface of the evaporation pond liquid, the atomizing assembly 2 is positioned above the water spray assembly 1, and the submersible pump 4 is suspended below the floating island assembly 3.

[0028] The water spray assembly 1 is connected to the submersible pump 4 via a water supply pipe. The water supply pipe includes a first water supply pipe 13 and a second water supply pipe 14. The first water supply pipe 13 is preferably a stainless steel pipe, and its end is connected to the water spray assembly 1. The second water supply pipe 14 is a rubber water pipe, and its end is connected to the submersible pump 4. In a preferred embodiment, the submersible pump 4 is connected to a frequency converter for adjusting the water pressure and flow rate.

[0029] like Figure 3 As shown, the water spray assembly 1 includes an annular water distributor 11, with a plurality of water distribution ports 12 arranged circumferentially on the annular water distributor 11. The water distribution ports 12 are inclined upward and arranged toward the atomizing assembly 2.

[0030] like Figure 2 As shown, the atomizing component 2 includes a hub and a plurality of long blades 21 and short blades 22 connected to the hub and arranged circumferentially, with the long blades 21 and short blades 22 arranged at intervals.

[0031] The atomizing component 2 is connected to the driving component, which includes a driving motor located at the bottom of the water spraying component 1, and a protective shell 5 is provided on the outside of the driving motor.

[0032] like Figure 1 As shown, the evaporator of this utility model also includes a floating island assembly 3 disposed at the bottom of the drive motor. The floating island assembly 3 includes a support base 31 and floats 32 connected to the support base 31. The support base 31 is a cross-shaped base. Multiple floats 32 are detachably and fixedly connected to the tail end of the cross. The support base 31 is connected to the protective shell through a support rod 33, which is preferably a stainless steel tube.

[0033] In a preferred embodiment, the floating island assembly 3 includes four pontoons 32, which are respectively connected to the tail end of the cross base. The pontoons 32 are preferably hollow rubber pontoons 32, which can provide sufficient buoyancy to make the entire device float on the surface of the evaporation pond liquid.

[0034] In practical applications, the driving component drives the atomizing assembly 2 to rotate at high speed. The submersible pump 4 pressurizes the concentrated brine in the evaporation pond and pumps it into the second water supply pipe 14. The second water supply pipe 14 then delivers the brine to the first water supply pipe 13, and finally into the annular water distributor 11. Under pressure, the water flow is ejected from the water distribution port 12 at an upward angle to the horizontal plane, forming a high-speed atomized jet. The ejected water flow is fully broken up by the atomizing assembly 2 and sprayed into the air along the impeller edge to evaporate. In this embodiment, the head of the submersible pump 4 is 10-100 meters, preferably 30-60 meters.

[0035] If a conventional impeller structure is used to break up brine, droplets typically undergo only one effective impact breakup per rotation cycle. Large droplets are easily ejected directly from the gaps between ordinary blades of equal length, and the breakup process involves only the blade edges, resulting in low utilization of the central area of ​​the blades. This leads to a wide droplet size distribution and noticeable tailing of large particles. However, the mechanical atomizing evaporator of this invention utilizes a rotary breakup system with alternating long and short blades. The long blades handle the main water flow, while the short blades assist in distributing the load, thus improving blade utilization. Droplets undergo a stepped breakup process, with the long blades handling the primary breakup and the short blades assisting in the secondary breakup. The short blades effectively intercept and break up any escaped droplets from the long blades, further enhancing the breakup efficiency. This primary-secondary breakup system with long and short blades, proceeding from coarse to fine crushing, results in a more concentrated particle size distribution (100-400 nm), more uniform droplets, and higher evaporation efficiency.

[0036] Example 2

[0037] like Figure 2 As shown, as an improvement to Embodiment 1, in this embodiment, the long blade 21 and the short blade 22 are connected to the same hub and are staggered on the same horizontal plane. In some other preferred embodiments, as a further improvement, the long blade 21 and the short blade 22 are not limited to two-level length changes, but can be set with multiple levels of gradient changes according to actual needs, such as by arranging long, medium and short blades in an alternating manner, or the long blade 21 and the short blade 22 are connected to the same hub, but are staggered on two parallel horizontal planes. These improvements made according to actual conditions are also within the protection scope of this utility model.

[0038] Both the long blade 21 and the short blade 22 have arc-shaped curved surface structures to accelerate the flow of brine and reduce stagnation and blockage. The distal ends of the long blade 21 and the short blade 22 are provided with oblique cut structures 23 to achieve better breaking effect; the distal end refers to the end away from the hub. The angle between the long blade and the vertical plane is 15~25°, preferably 20°; the angle between the short blade and the vertical plane is 25~35°, preferably 30°. Compared with ordinary atomizing components, this invention, through the unique design of the blade angles, allows the long blades to have a larger interception area, preferentially catching the main jet, while the increased tilt angle of the short blades provides a stronger shearing and breaking effect on the splashed droplets from the long blades. Furthermore, compared to the single tilt angle of ordinary blades, the differentiated tilt angles make it easier for droplets to be spirally drawn into the blades. Therefore, this design in this invention makes it easier for the long blades to draw in the bottom water mist for rotational breaking, and for the short blades to intercept the droplets thrown out by the long blades, thus fully assisting in breaking.

[0039] The length ratio of the short blade 22 to the long blade 21 is 1:1.4~1.5, preferably 1:1.45. In this invention, if the ratio of the long blade to the short blade is too large, the short blade will compete with the long blade for water due to its excessive length, thus reducing the crushing efficiency; while if the ratio is too small, the short blade will have a significantly reduced interception capacity due to its shortness, and thus cannot fully play its auxiliary crushing role.

[0040] In a preferred embodiment, the bottoms of the long blades 21 and the short blades 22 of the atomizing component 2 are both inclined downwards, so as to better receive and fully break up the brine jet.

[0041] In the atomizing component 2, the long blades 21 receive the main jet of water, while the short blades 22 assist in breaking up the splashed droplets between the long blades 21. The alternating distribution of long and short blades ensures that within each rotation cycle, the droplets undergo multiple cycles of breaking up with long blades, splashing, further breaking up with the assistance of short blades, and splashing again. This significantly increases the probability of effective droplet impact, resulting in smaller atomized particle sizes. This leads to better breaking up and a higher degree of atomization. The finer droplets, with their improved atomization, are ejected into the air and have a larger evaporation surface area, evaporating more effectively under the influence of solar and wind power. This achieves efficient concentration of the brine in the evaporation pond, improving overall evaporation efficiency. Furthermore, the arc-shaped structure of the blades, bending inwards in the direction of rotation, effectively increases the residence time of the water flow on the blade surface, allowing the water to be fully accelerated before being ejected from the blade edges, reducing brine retention and accumulation.

[0042] Example 3

[0043] like Figure 3 As shown, as an improvement on Embodiment 2, in this embodiment, the annular water distributor 11 is an annular water distribution pipe, preferably a stainless steel pipe. Multiple water distribution ports 12 are evenly distributed circumferentially on the annular water distribution pipe. The water distribution ports 12 have a conical constriction structure, which facilitates the formation of a high-speed jet of brine. The water distribution ports 12 are set at an angle of 60-80°, preferably 70°, upwards from the horizontal plane. Under pressure, the water flow exits from the water distribution ports 12 at an angle of 60-80°, preferably 70°, upwards from the horizontal plane. Because the water distribution ports 12 are angled upwards, the jet naturally flows back under gravity after the machine stops, preventing residue at the nozzle. During operation, the high-speed jet is sprayed upwards at an angle, making it difficult for salt to adhere to the water distribution ports.

[0044] The ratio of the water distribution width at the water distribution port 12 on the annular water distribution pipe to the rotation diameter of the atomizing component 2 is 1:3~4. The water sprayed upward from the annular water distribution pipe diffuses outward and remains within the diameter range of the atomizing component 2. This arrangement allows the water distribution port to be located within the low-pressure vortex zone generated by the impeller rotation, and the resulting high-speed atomized jet is quickly carried away by centrifugal force to reduce clogging.

[0045] Example 4

[0046] As an improvement to Embodiment 1, in this embodiment, the top of the protective shell 5 is provided with an inclined top cover 51. The inclined top cover 51 facilitates the rapid downward flow of falling salt water, preventing salt water from accumulating on the top of the protective shell 5 and reducing the accumulation on the top of the protective shell 5.

[0047] In some improved embodiments, a seal is provided at the position where the output shaft of the drive motor extends out of the protective housing 5. The seal is preferably a rubber sealing ring or sealant.

[0048] Example 5

[0049] As a further improvement to Embodiment 1, the first water supply pipe 13 is a stainless steel pipe, the second water supply pipe 14 is a rubber water pipe, the annular water distributor 11 and the water distribution port 12 arranged on the annular water distributor 11 are made of stainless steel, and the atomizing component 2 is made of stainless steel that is resistant to chemical corrosion and particle abrasion.

[0050] Example 6

[0051] As a further improvement to Embodiment 1, the hub and long blade 21 or the hub and short blade 22 of the atomizing component 2 are detachably fixedly connected. The detachable fixed connection is preferably fixedly connected by a bolt assembly. During long-term use, the blades can be disassembled for cleaning as needed, further extending the service life of the equipment.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components.

[0055] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A crushing mechanical atomizing evaporator, characterized in that, include Water spray assembly and atomizing assembly; The water spray assembly includes an annular water distributor, which has multiple water outlets arranged circumferentially, with the water outlets tilted upwards and facing the atomizing assembly. The atomizing component includes a hub and a plurality of long and short blades connected to the hub and arranged circumferentially, with the long and short blades arranged at intervals.

2. The crushing mechanical atomizing evaporator according to claim 1, characterized in that, The annular water distributor is an annular water distribution pipe, and the water distribution port is set on the annular water distribution pipe. The water distribution port has a conical constriction structure.

3. The crushing mechanical atomizing evaporator according to claim 2, characterized in that, The water distribution port is set at an angle of 60-80° upwards from the horizontal plane.

4. The crushing mechanical atomizing evaporator according to claim 2, characterized in that, The ratio of the water distribution width at the water distribution port on the annular water distribution pipe to the rotation diameter of the atomizing component is 1:3~4.

5. The crushing mechanical atomizing evaporator according to claim 1, characterized in that, Both the long and short blades have an arc-shaped curved surface structure, and the far ends of the long and short blades are provided with oblique cut structures.

6. The crushing mechanical atomizing evaporator according to claim 5, characterized in that, The angle between the long blade and the vertical plane is 15-25°, and the angle between the short blade and the vertical plane is 25-35°.

7. The crushing mechanical atomizing evaporator according to claim 1, characterized in that, The ratio of the length of the short blade to the length of the long blade is 1:1.4~1.

5.

8. The crushing mechanical atomizing evaporator according to claim 1, characterized in that, The atomizing component is connected to a driving component, which includes a driving motor located at the bottom of the water spraying component, and a protective shell is provided on the outside of the driving motor.

9. The crushing mechanical atomizing evaporator according to claim 8, characterized in that, The evaporator also includes a floating island assembly located at the bottom of the drive motor. The floating island assembly includes a support base and floats connected to the support base. The support base is a cross-shaped base, and multiple floats are evenly distributed at the tail end of the cross. The support base is connected to the protective shell by a support rod.

10. The crushing mechanical atomizing evaporator according to claim 9, characterized in that, The evaporator also includes a submersible pump, which is fixed to the bottom of the support base and connected to the annular water distributor via a water supply pipe.

Images