A magnetic flocculation separation device and method for sewage treatment

Abstract

The application belongs to the technical field of sewage treatment, and particularly relates to a magnetic flocculation separation device and method for sewage treatment. A mounting cavity is arranged in the main body. A partition component is arranged in the mounting cavity, and flow-through holes are arranged on the partition component. The mounting cavity is divided into a crushing cavity and a magnetic attraction cavity by the partition component. A control valve component is arranged in the flow-through holes. A crushing component is arranged in the crushing cavity. A magnetic attraction component is arranged in the magnetic attraction cavity. A liquid outlet component is arranged at the bottom of the main body, and penetrates the main body to the magnetic attraction cavity. The impurities in the sewage are crushed by the crushing component, and the crushing effect of the first crushing component and the second crushing component is enhanced under the action of the turbulence element. The rotary drum element is driven to rotate by the third driving element, so that the magnetic flocculation contacts the magnetic attraction assembly under the action of the centrifugal force, thereby collecting the magnetic powder. The wiping component in the expansion mode does not affect the magnetic attraction effect, and the magnetic powder attached to the rotary drum element is removed, thereby improving the collection efficiency.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and particularly relates to a magnetic flocculation separation device and method for wastewater treatment. Background Technology

[0002] Sedimentation is a common wastewater treatment method, but natural sedimentation has low efficiency. To address this, magnetic coagulation technology has emerged. Magnetic coagulation technology involves adding magnetic powder to traditional coagulation techniques, allowing it to combine with coagulants and pollutants to form a magnetic composite. Then, by utilizing its high density and fast sedimentation or through a magnetic separation device, solid-liquid separation is accelerated, thereby removing pollutants.

[0003] Magnetic-enhanced coagulation technology is widely used in wastewater treatment. By adding magnetic seeds to wastewater, along with coagulants, flocculants, and other chemical agents, high-density, compact magnetic flocs with the magnetic seeds at their core are formed. Compared to ordinary flocs, magnetic flocs settle much faster. To facilitate the recycling of magnetic seeds, the magnetic flocs are typically sheared at high speed and then fed into a magnetic drum device. The magnetic drum device separates and collects the magnetic seeds for subsequent use. Existing magnetic drum devices mainly consist of a fixed magnetic cylinder and a non-magnetic cylinder rotating outside the magnetic cylinder. Wastewater containing magnetic powder and sludge enters the separation device from one end of the drum. The fixed magnetic poles attract the magnetic particles, which adhere to the surface of the drum. As the drum rotates, the particles are carried to the low-magnetic zone at the edge of the magnetic cylinder and discharged from the magnetic material outlet. The non-magnetic material flows along the separation tank to the non-magnetic material outlet under the influence of gravity. For example, Chinese patent CN201620896814.2 provides a method for magnetic... In existing magnetic powder recovery equipment such as the one mentioned above, the magnetic powder recovery device using flocculation and sedimentation technology has several drawbacks. First, in order to effectively collect the magnetic powder, a high-speed shearing machine is required to break up the magnetic flocs. Second, the contact area between the wastewater containing magnetic powder and flocs and the magnetic cylinder is small, and the wastewater will settle due to its own gravity when flowing through the magnetic cylinder, resulting in incomplete adsorption by the magnetic cylinder. Third, during the adsorption process, the magnetic cylinder will adhere some flocs to its surface through magnetic powder adsorption, resulting in a large amount of flocs mixed in after the magnetic powder is collected. Summary of the Invention

[0004] The purpose of this invention is to provide a magnetic flocculation separation device and method for wastewater treatment. The provided magnetic flocculation separation device not only has a crushing function, but also has the function of collecting magnetic powder, thereby improving the efficiency and purity of magnetic powder collection.

[0005] To solve the above-mentioned technical problems, the specific technical solution of the present invention is as follows:

[0006] In some embodiments of this application, a magnetic flocculation separation device for wastewater treatment is provided, comprising:

[0007] The main body has an internal mounting cavity. The main body is a shell structure, which provides mounting space for other components. It can be columnar, rectangular, or a sewage tank structure, and there is no limitation on it.

[0008] The dividing component is a plate-shaped structure, which is used to divide the mounting cavity into a crushing cavity and a magnetic suction cavity. The crushing cavity is located above the magnetic suction cavity. The dividing component is located in the mounting cavity and is fixedly connected to the main body. It is provided with a flow hole. It should be noted that the bottom of the dividing component is an annular protrusion.

[0009] The control valve component is used to control the opening and closing of the flow orifice. The control valve component is located inside the flow orifice and is fixedly connected to the dividing component.

[0010] The pulverizing component is used to pulverize the sewage impurities in the pulverizing chamber, thereby improving the reaction efficiency between sewage and magnetic flocculant. The pulverizing component is located inside the pulverizing chamber, and its drive end is connected to the top of the main body.

[0011] The magnetic attraction component is a structure for adsorbing magnetic powder on the surface of magnetic flocculents. The magnetic attraction component is located inside the magnetic attraction cavity, and its driving end is located on one side of the main body.

[0012] The liquid inlet component is a water inlet pipe or a structure that can inject wastewater into the grinding chamber. The liquid inlet component is located at the top of the main body and extends through the main body into the grinding chamber.

[0013] The liquid outlet component is a water outlet pipe or a structure that can discharge sewage from the magnetic suction cavity. The liquid outlet component is located at the bottom of the main body and extends through the main body into the magnetic suction cavity.

[0014] In some embodiments of this application, the control valve component is a solenoid valve or a mechanical valve structure, wherein the mechanical valve structure includes:

[0015] The first support member is a plate-shaped structure. The first support member is a fan-shaped structure, which is arranged in a ring array in the flow hole. There is a gap between two adjacent first support members to form a fan-shaped hole. In other words, the first support member has a first fan-shaped hole arranged in a ring array.

[0016] The second support member is a plate-shaped structure and a fan-shaped structure. It is arranged in a ring array in the flow hole and corresponds to the position of the first support member. There is a gap between the second support member and the first support member to form a rotating cavity. In other words, the second support member has a second fan-shaped hole arranged in a ring array.

[0017] The first driving component is either a stepper motor or a servo motor, and the first driving component is located at the center of the first support component and the second support component.

[0018] The rotating component has a plate-like structure and is located inside the rotating cavity. It is connected to the output end of the first driving component and is slidably connected to the first support component and the second support component. A sealing gasket may also be provided on the rotating component to improve the opening and closing effect of the first sector hole and the second sector hole.

[0019] In some embodiments of this application, the crushing component is a modular structure, including:

[0020] The second driving component is either a stepper motor or a servo motor. The second driving component is located on the top of the main body, and its output end passes through the crushing chamber of the main body. It is fixedly connected to the main body.

[0021] The first crushing component is a crushing blade structure, which is used to crush large particles of impurities in sewage, thereby turning large particles of impurities into small particles of impurities. The first crushing component is located on the output end of the second driving component, and it is fixedly connected to the second driving component.

[0022] The second crushing component is a rotating disk structure. The second crushing component is located on the output end of the second drive component and is located below the first crushing component. It is fixedly connected to the second drive component and slidably connected to the inner wall of the crushing chamber. It is provided with a plurality of first crushing holes, and the edges of the crushing holes are cutter structures.

[0023] The third crushing component is a fixed disk structure. The third crushing component is located inside the crushing chamber and is sleeved on the output end of the second driving component. It is fixedly connected to the inner wall of the crushing chamber and slidably connected to the second crushing component. It is provided with several second crushing holes.

[0024] The turbulence-inducing component is a device such as a blower or air pump that can cause the water to churn upwards. The turbulence-inducing component is arranged in a ring array at the bottom of the crushing chamber. It is fixedly connected to the dividing component and connected to the external air source. By turbulence-inducing the wastewater to churn upwards, the wastewater impurities that have been crushed by the second and third crushing components are crushed again, thereby further improving the crushing effect and increasing the reaction speed with the magnetic flocculant.

[0025] In some embodiments of this application, the magnetic attraction component is a combined structure, including:

[0026] The third support member is a ring-shaped protrusion structure, which is fixedly connected to the bottom of the magnetic cavity.

[0027] The rotating cylinder has an annular groove at its bottom, which is mounted on the third support member and is slidably connected to the third support member. Its top is fitted onto the dividing member so that the flow hole corresponds to the working chamber inside the rotating cylinder. The rotating cylinder has a top-opening working chamber inside, and liquid outlet holes arranged in an annular array at the bottom of the working chamber. A solenoid valve is installed in the liquid outlet hole to control the discharge of liquid inside the rotating cylinder.

[0028] The connecting parts are gear structures, and the connecting parts are arranged in a matrix on the outer wall of the rotating cylinder, and are fixedly connected to the rotating cylinder.

[0029] The third driving component is a rotary motor. The third driving component is located on the side wall of the main body, and its output end passes through the inner wall of the magnetic suction cavity of the main body and is engaged with the connecting component.

[0030] The magnetic attraction components are permanent magnets, and they are arranged in a matrix on the inner wall of the working cavity, and are fixedly connected to the rotating cylinder.

[0031] In some embodiments of this application, it further includes: a wiping component, which is disposed in the working cavity and whose wiping end contacts the inner wall of the working cavity when it is working;

[0032] The wiping components include:

[0033] The fourth driving component is either a stepper motor or a servo motor. The fourth driving component is located at the bottom of the rotating cylinder, at the center of the annular groove, and its output end passes through the rotating cylinder into the working cavity.

[0034] The slide rail component is arranged in a ring array on the output end of the fourth drive component, and it has a groove structure.

[0035] The fifth driving component is a dual-axis motor. The fifth driving component is arranged in a ring array on the output end of the fourth driving component. It is located at the center of the slide rail component and has two symmetrically arranged output ends.

[0036] The first slider is located on one output end of the fifth driving member. It is threadedly connected to the output end of the fifth driving member and slidably connected to the slide rail. It is provided with a first hinge end and can slide in the slide rail under the action of the fifth driving member.

[0037] The second slider is located on another output end of the fifth drive member. It is threadedly connected to the output end of the fifth drive member and slidably connected to the slide rail. It has a second hinge end and is symmetrically arranged with the first slider. Under the action of the fifth drive member, it can make a movement in the slide rail that is symmetrical to the movement of the first slider.

[0038] A wiping plate is provided in the working cavity, with a wiping component on one side and a third hinge end and a fourth hinge end on the other side;

[0039] The first connecting rod has one end connected to the first hinge end of the first slider and the other end connected to the fourth hinge end of the wiping plate component.

[0040] The second link has one end connected to the second hinge end of the second slider and the other end connected to the third hinge end of the wiping plate. The center of the first link is hinged to the center of the second link.

[0041] The upper surface of the wiping component has several raised or burr structures to facilitate wiping the magnetic powder on the magnetic powder assembly. The material of the wiping component can be selected according to actual needs and is not restricted here.

[0042] A magnetic flocculation separation method for wastewater treatment includes the following steps:

[0043] 1) The wastewater is introduced into the pulverizing chamber through the inlet component. At this time, the control valve component is closed, and the wastewater is in the pulverizing chamber.

[0044] 2) After the impurities in the wastewater are crushed by the crushing component, the crushing component is turned off, and magnetic flocculant is injected into the crushing chamber through the water inlet component to generate magnetic flocculents;

[0045] 3) After crushing and reaction are completed, open the control valve component to allow the crushed wastewater to enter the magnetic suction chamber. The third drive component drives the rotating drum to rotate, so that the wastewater comes into contact with the magnetic suction component and is then magnetically adsorbed.

[0046] 4) After the magnetic adsorption treatment is completed, the wastewater is discharged through the liquid outlet at the bottom of the rotating drum, and then discharged by the liquid outlet component.

[0047] 5) The impurities attached to the inner wall of the rotating cylinder are wiped off by the wiping component, and liquid is injected into the working chamber so that the magnetic powder after wiping is discharged with the liquid.

[0048] Compared with the prior art, the beneficial effects of the present invention are that the impurities in the sewage are crushed by the crushing component, and the crushing effect of the first crushing component and the second crushing component is enhanced by the action of the turbulence component. The rotating drum is driven by the third driving component, so that the magnetic flocs come into contact with the magnetic attraction component under the action of centrifugal force, thereby collecting magnetic powder. By using the retractable wiping component, not only is the magnetic attraction effect not affected, but the magnetic powder attached to the rotating drum is also removed, thereby improving the collection efficiency. Attached Figure Description

[0049] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0050] Figure 1 This is a schematic diagram of the overall external structure provided in an embodiment of the present invention;

[0051] Figure 2 This is a schematic diagram of the overall internal structure provided for an embodiment of the present invention;

[0052] Figure 3 This is a schematic diagram of the control valve component structure provided in an embodiment of the present invention;

[0053] Figure 4 Provided for embodiments of the present invention Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0054] Figure 5 This is a schematic diagram of the wiping component provided in an embodiment of the present invention.

[0055] Figure 6 This is a schematic diagram of the liquid outlet component provided in an embodiment of the present invention. Detailed Implementation

[0056] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0057] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0058] See appendix Figure 1-5 As shown, according to some embodiments of this application, it includes:

[0059] Main body 1, the main body 1 has an installation cavity inside, the main body 1 is a shell structure, which is used to provide installation space for other components, and it can adopt a columnar, rectangular or other structure, or a sewage tank structure, which is not limited here;

[0060] The dividing component 2 is a plate-shaped structure, which is used to divide the installation cavity into a crushing cavity and a magnetic suction cavity. The crushing cavity is located above the magnetic suction cavity. The dividing component 2 is located in the installation cavity and is fixedly connected to the main body 1. It is provided with a flow hole. It should be noted that the bottom of the dividing component 2 is an annular protrusion.

[0061] The control valve component 3 is used to control the opening and closing of the flow hole. The control valve component 3 is disposed in the flow hole and is fixedly connected to the dividing component 2.

[0062] The crushing component 4 is used to crush the sewage impurities in the crushing chamber, thereby improving the reaction efficiency of sewage and magnetic flocculant. The crushing component 4 is located in the crushing chamber, and its driving end is connected to the top of the main body 1.

[0063] The magnetic suction component 5 is a structure for adsorbing magnetic powder on the surface of the magnetic flocculant. The magnetic suction component 5 is located inside the magnetic suction cavity, and its driving end is located on one side of the main body 1.

[0064] The liquid inlet component 6 is a water inlet pipe or a structure that can inject wastewater into the grinding chamber. The liquid inlet component 6 is located on the top of the main body 1 and extends through the main body 1 into the grinding chamber.

[0065] The liquid outlet component 7 is a water outlet pipe or a structure that can discharge sewage from the magnetic suction cavity. The liquid outlet component 7 is located at the bottom of the main body 1 and extends through the main body 1 into the magnetic suction cavity.

[0066] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0067] By injecting wastewater into the pulverizing chamber through the inlet component 6, the wastewater is pulverized by the pulverizing component 4, which crushes the large particles of impurities contained within it. This improves the reaction efficiency with the magnetic flocculant and accelerates the generation of magnetic flocs. After the reaction is complete, the control valve component 3 is opened, allowing the wastewater to enter the magnetic adsorption chamber. Under the action of the magnetic adsorption component 5, the magnetic powder on the magnetic flocs is adsorbed and collected. The wastewater and flocculents are then discharged through the outlet component 7, thus completing the wastewater treatment and providing a foundation for improving the wastewater treatment effect and collecting magnetic powder.

[0068] In some embodiments of this application, the control valve component 3 is a solenoid valve or a mechanical valve structure, wherein the mechanical valve structure includes:

[0069] The first support member 301 is a plate-shaped structure and a fan-shaped structure. It is arranged in a ring array in the flow hole. There is a gap between two adjacent first support members 301 to form a fan-shaped hole. In other words, the first support member 301 is provided with a first fan-shaped hole arranged in a ring array.

[0070] The second support member 302 is a plate-shaped structure and a fan-shaped structure. It is arranged in a ring array in the flow hole and corresponds to the position of the first support member 301. There is a gap between it and the first support member 301 to form a rotating cavity. In other words, the second support member 302 has a second fan-shaped hole arranged in a ring array.

[0071] The first driving member 303 is either a stepper motor or a servo motor, and the first driving member 303 is located at the center of the first support member 301 and the second support member 302.

[0072] The rotating component 304 has a plate-like structure and is located in the rotating cavity. It is connected to the output end of the first driving component 303 and is slidably connected to the first support component 301 and the second support component 302. A sealing gasket may also be provided on the rotating component 304 to improve the opening and closing effect of the first sector hole and the second sector hole.

[0073] It should be noted that the shape of the rotating part 304 is the same as that of the fan-shaped hole, and its area is larger than that of the fan-shaped hole.

[0074] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0075] The first driving component 303 drives the rotating component 304 to rotate in the rotating cavity, thereby opening or closing the first sector-shaped hole and the second sector-shaped hole. By adopting a mechanical rotation control structure, it is not only easy to operate, but also simple in structure and low in manufacturing cost. In addition, the sector-shaped structure makes it easy to accurately control the emission speed.

[0076] In some embodiments of this application, the crushing component 4 is a modular structure, including:

[0077] The second driving component 401 is either a stepper motor or a servo motor. The second driving component 401 is located on the top of the main body 1, and its output end passes through the crushing chamber of the main body 1. It is fixedly connected to the main body 1.

[0078] The first crushing component 402 is a crushing blade structure, which is used to crush large particulate impurities in sewage, thereby turning large particulate impurities into small particulate impurities. The first crushing component 402 is located on the output end of the second driving component 401, and is fixedly connected to the second driving component 401.

[0079] The second crushing component 403 is a rotating disk structure. The second crushing component 403 is located on the output end of the second driving component 401, below the first crushing component 402. It is fixedly connected to the second driving component 401 and slidably connected to the inner wall of the crushing chamber. It is provided with a plurality of first crushing holes, and the edges of the crushing holes are cutter structures.

[0080] The third crushing component 404 is a fixed disk structure. The third crushing component 404 is disposed in the crushing chamber and is sleeved on the output end of the second driving component 401. It is fixedly connected to the inner wall of the crushing chamber and slidably connected to the second crushing component 403. It is provided with a plurality of second crushing holes.

[0081] In other words, the second pulverizer 403 and the third pulverizer 404 work together to further pulverize the impurities after they have been pulverized by the first pulverizer 402, thereby improving the pulverization effect and providing a basis for increasing the reaction rate with the magnetic flocculant.

[0082] The turbulence-disrupting component 405 is a device such as a blower or air pump that can cause the water to churn upwards. The turbulence-disrupting component 405 is arranged in a ring array at the bottom of the pulverizing chamber. It is fixedly connected to the dividing component 2 and connected to the external air source. The turbulence-disrupting component 405 causes the sewage to churn upwards, thereby further pulverizing the sewage impurities after being pulverized by the second pulverizer 403 and the third pulverizer 404, thereby further improving the pulverizing effect and increasing the reaction speed with the magnetic flocculant.

[0083] It should be noted that the diameter of the first pulverizing hole is greater than or equal to the diameter of the second pulverizing hole.

[0084] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0085] The second driving component 401 drives the first crushing component 402 and the second crushing component 403 to rotate, thereby crushing the impurities in the sewage. Under the action of the turbulence-disrupting component 405, the sewage is turbulent, which further crushes the impurities in the sewage, thereby miniaturizing the impurity particles in the sewage and improving the reaction efficiency with the magnetic flocculant.

[0086] In some embodiments of this application, the magnetic attraction component 5 is a combined structure, including:

[0087] The third support member 501 is an annular protrusion structure, and the third support member 501 is a ring-shaped structure, which is fixedly connected to the bottom of the magnetic cavity.

[0088] The rotating cylinder 502 has an annular groove at its bottom, which is mounted on the third support 501 and is slidably connected to the third support 501. Its top is sleeved on the dividing member 2, so that the flow hole corresponds to the working chamber inside the rotating cylinder 502. The rotating cylinder 502 has a working chamber with a top opening, and liquid outlet holes arranged in an annular array at the bottom of the working chamber. The liquid outlet holes are equipped with solenoid valves, which control the discharge of liquid inside the rotating cylinder 502.

[0089] The connector 503 is a gear structure. The connectors 503 are arranged in a matrix on the outer wall of the rotating cylinder 502 and are fixedly connected to the rotating cylinder 502.

[0090] The third driving component 504 is a rotary motor. The third driving component 504 is located on the side wall of the main body 1. Its output end passes through the inner wall of the magnetic suction cavity of the main body 1 and is engaged with the connecting component 503.

[0091] The magnetic attraction component 505 is a permanent magnet. The magnetic attraction component 505 is arranged in a matrix on the inner wall of the working cavity and is fixedly connected to the rotating cylinder 502.

[0092] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0093] The third driving component 504 engages with the connecting component 503, thereby driving the rotating drum 502 to rotate. During the rotation, the rotating drum 502 slides against the third support component 501, thus supporting the rotating drum 502. At the same time, the opening at the top of the rotating drum 502 slides on the annular protrusion at the bottom of the dividing component 2. The dividing component 2 and the third support component constrain the rotating drum 502, so that the rotating drum 502 can only rotate within the magnetic suction cavity. During the rotation of the rotating drum 502, the sewage, under the action of centrifugal force, causes the internal magnetic flocs to come into contact with the magnetic suction component 505, thereby collecting the magnetic powder on the magnetic flocs and making the magnetic powder adhere to the magnetic suction component 505, thus improving the collection efficiency.

[0094] In some embodiments of this application, it further includes: a wiping component, which is disposed in the working cavity and whose wiping end contacts the inner wall of the working cavity when it is working;

[0095] The wiping components include:

[0096] The fourth driving component 601 is either a stepper motor or a servo motor. The fourth driving component 601 is located at the bottom of the rotating cylinder 502, at the center of the annular groove, and its output end passes through the rotating cylinder 502 into the working cavity.

[0097] The slide rail 602 is arranged in a ring array on the output end of the fourth drive member 601, and it has a groove structure.

[0098] The fifth driving component 603 is a dual-axis motor. The fifth driving component 603 is arranged in a ring array on the output end of the fourth driving component 601. It is located at the center of the slide rail component 602 and has two symmetrically arranged output ends.

[0099] The first slider 604 is disposed on one output end of the fifth driving member 603. It is threadedly connected to the output end of the fifth driving member 603 and slidably connected to the slide rail member 602. It is provided with a first hinge end 6041, which can slide in the slide rail member 602 under the action of the fifth driving member 603.

[0100] The second slider 605 is located on another output end of the fifth driving member 603. It is threadedly connected to the output end of the fifth driving member 603 and slidably connected to the slide rail 602. It is provided with a second hinge end 6051, which is symmetrically arranged with the first slider 604. Under the action of the fifth driving member 603, it can make a movement in the slide rail 602 that is symmetrical to the movement of the first slider 604.

[0101] The wiping plate is disposed in the working cavity, with a wiping component 607 on one side and a third hinge end 6061 and a fourth hinge end 6062 on the other side.

[0102] The first connecting rod has one end connected to the first hinge end 6041 of the first slider 604, and the other end connected to the fourth hinge end 6062 of the wiping plate component.

[0103] The second link has one end connected to the second hinge end 6051 of the second slider 605, and the other end connected to the third hinge end 6061 of the wiping plate. The center of the first link is hinged to the center of the second link.

[0104] The upper surface of the wiping component 607 is provided with several protrusions or burrs to facilitate wiping the magnetic powder on the magnetic powder assembly. The material of the wiping component 607 can be selected according to actual needs and is not limited here.

[0105] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0106] The fifth driving component 603 drives the first and second connecting rods to extend the wiping plate 606 towards the inner wall of the action cavity, so that the wiping component 607 contacts the inner wall of the action cavity and rotates under the action of the fourth driving component 601, thereby wiping away the magnetic powder attached to the magnetic suction assembly 505. The wiped magnetic powder is then discharged and collected by water. By using a retractable wiping plate 606, the wiping component is prevented from affecting the inside of the rotating cylinder 502. This not only facilitates operation, but also makes the operation more stable due to the mechanical structure, and can increase the collection efficiency of magnetic powder.

[0107] In some embodiments of this application, the technical solutions of the above embodiments are adopted, and the controller is also included. The controller controls the operation of the first drive unit 303, the second drive unit 401, the third drive unit 504, the fourth drive unit 601, the fifth drive unit 603, the liquid inlet component 6, and the liquid outlet component 7 to achieve automation and reduce the labor intensity of the user. The structure or working principle of the controller has been involved in related fields, so it will not be described in detail here.

[0108] A magnetic flocculation separation device and method for wastewater treatment, comprising the following process steps:

[0109] 1) The wastewater is introduced into the pulverizing chamber through the inlet component 6. At this time, the control valve component 3 is closed, and the wastewater is in the pulverizing chamber.

[0110] 2) After the impurities in the wastewater are crushed by the crushing component 4, the crushing component 4 is turned off, and magnetic flocculant is injected into the crushing chamber through the water inlet component to generate magnetic flocculents;

[0111] 3) After crushing and reaction are completed, open the control valve component 3 to allow the crushed wastewater to enter the magnetic suction chamber. The third drive component 504 drives the rotating drum component 502 to rotate, so that the wastewater comes into contact with the magnetic suction component 505, thereby performing magnetic adsorption treatment.

[0112] 4) After the magnetic adsorption treatment is completed, the wastewater is discharged through the liquid outlet at the bottom of the rotating drum 502, and then discharged by the liquid outlet component 7.

[0113] 5) The impurities attached to the inner wall of the rotating cylinder 502 are wiped by the wiping component, and liquid is injected into the working chamber so that the magnetic powder after wiping is discharged with the liquid.

[0114] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0115] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0116] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0117] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0118] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A magnetic flocculation separation device for wastewater treatment, characterized in that, include: The main body has an internal mounting cavity and is a shell structure, which provides mounting space for other components; The dividing component is a plate-shaped structure, which is used to divide the mounting cavity into a crushing cavity and a magnetic suction cavity. The crushing cavity is located above the magnetic suction cavity. The dividing component is located in the mounting cavity and is fixedly connected to the main body. It is provided with a flow hole and the bottom of the dividing component is an annular protrusion. The control valve component is used to control the opening and closing of the flow orifice. The control valve component is located inside the flow orifice and is fixedly connected to the dividing component. The crushing component is used to crush sewage impurities in the crushing chamber. The crushing component is located inside the crushing chamber, and its driving end is connected to the top of the main body. The magnetic attraction component is a structure for adsorbing magnetic powder on the surface of magnetic flocculents. The magnetic attraction component is located inside the magnetic attraction cavity, and its driving end is located on one side of the main body. The liquid inlet component is a water inlet pipe or other structure capable of injecting wastewater into the grinding chamber. The liquid inlet component is located at the top of the main body and extends through the main body into the grinding chamber. The liquid outlet component is a water outlet pipe or other structure capable of discharging wastewater from the magnetic suction cavity. The liquid outlet component is located at the bottom of the main body and extends through the main body into the magnetic suction cavity. The crushing component has a modular structure, including: The second driving component is located on the top of the main body, and its output end extends through the main body into the crushing chamber. It is fixedly connected to the main body. The first crushing component is a crushing blade structure, which is used to crush large particles of impurities in sewage, thereby turning large particles of impurities into small particles of impurities. The first crushing component is located on the output end of the second driving component, and it is fixedly connected to the second driving component. The second crushing component is a rotating disk structure. The second crushing component is located on the output end of the second drive component and is located below the first crushing component. It is fixedly connected to the second drive component and slidably connected to the inner wall of the crushing chamber. It is provided with a plurality of first crushing holes, and the edges of the crushing holes are cutter structures. The third crushing component is a fixed disk structure. The third crushing component is located inside the crushing chamber and is sleeved on the output end of the second driving component. It is fixedly connected to the inner wall of the crushing chamber and slidably connected to the second crushing component. It is provided with several second crushing holes. The second and third crushing components work together to further crush the impurities that have been crushed by the first crushing component; The turbulence-inducing component is a device that can cause the water to churn upwards. The turbulence-inducing component is arranged in a ring array at the bottom of the crushing chamber. It is fixedly connected to the dividing component and connected to the external air source. The turbulence-inducing component causes the sewage to churn upwards, thereby further crushing the sewage impurities that have been crushed by the second and third crushing components. The diameter of the first pulverizing hole is greater than or equal to the diameter of the second pulverizing hole; The second driving component drives the first and second crushing components to rotate, thereby crushing the impurities in the sewage. Under the action of the turbulence component, the sewage is turbulent, which further crushes the impurities in the sewage, thus miniaturizing the impurity particles in the sewage. The magnetic attraction component is a modular structure, including: The third support member is a ring-shaped protrusion structure, and the third support member is a ring-shaped structure, which is fixedly connected to the bottom of the magnetic suction cavity; The rotating cylinder has an annular groove at its bottom, which is mounted on the third support member and is slidably connected to the third support member. Its top is fitted onto the dividing member so that the flow hole corresponds to the working chamber inside the rotating cylinder. The rotating cylinder has a top-opening working chamber inside, and liquid outlet holes arranged in an annular array at the bottom of the working chamber. A solenoid valve is installed in the liquid outlet hole to control the discharge of liquid inside the rotating cylinder. The connecting parts are gear structures, and the connecting parts are arranged in a matrix on the outer wall of the rotating cylinder, and are fixedly connected to the rotating cylinder. The third driving component is a rotary motor. The third driving component is located on the side wall of the main body, and its output end extends through the main body to the inner wall of the magnetic suction cavity and is engaged with the connecting component. The magnetic attraction components are permanent magnets, and the magnetic attraction components are arranged in a matrix on the inner wall of the working cavity, and are fixedly connected to the rotating cylinder. The rotating drum is driven to rotate by engaging with the connecting part through the third driving part. During the rotation, the rotating drum slides on the third support part, which supports the rotating drum. At the same time, the opening at the top of the rotating drum slides on the annular protrusion at the bottom of the dividing part. The dividing part and the third support part constrain the rotating drum, so that the rotating drum can only rotate in the magnetic suction cavity. During the rotation of the rotating drum, the sewage causes the internal magnetic flocs to come into contact with the magnetic suction assembly under the action of centrifugal force, thereby collecting the magnetic powder on the magnetic flocs and making the magnetic powder adhere to the magnetic suction assembly. A wiping component is disposed inside the working chamber, and its wiping end contacts the inner wall of the working chamber when it is in operation; The wiping components include: The fourth driving component is located at the bottom of the rotating cylinder, at the center of the annular groove, and its output end passes through the rotating cylinder into the working chamber. The slide rail component is arranged in a ring array on the output end of the fourth drive component, and it has a groove structure. The fifth driving component is a dual-axis motor. The fifth driving component is arranged in a ring array on the output end of the fourth driving component. It is located at the center of the slide rail component and has two symmetrically arranged output ends. The first slider is located on one output end of the fifth driving member. It is threadedly connected to the output end of the fifth driving member and slidably connected to the slide rail. It is provided with a first hinge end and can slide in the slide rail under the action of the fifth driving member. The second slider is located on another output end of the fifth drive member. It is threadedly connected to the output end of the fifth drive member and slidably connected to the slide rail. It has a second hinge end and is symmetrically arranged with the first slider. Under the action of the fifth drive member, it can make a movement in the slide rail that is symmetrical to the movement of the first slider. A wiping plate is provided in the working cavity, with a wiping component on one side and a third hinge end and a fourth hinge end on the other side; The first connecting rod has one end connected to the first hinge end of the first slider and the other end connected to the fourth hinge end of the wiping plate component. The second link has one end connected to the second hinge end of the second slider and the other end connected to the third hinge end of the wiping plate. The center of the first link is hinged to the center of the second link. The fifth driving component drives the first and second connecting rods to extend the wiping plate towards the inner wall of the working chamber, so that the wiping component contacts the inner wall of the working chamber and rotates under the action of the fourth driving component, thereby wiping away the magnetic powder attached to the magnetic suction component. The wiped magnetic powder is discharged and collected by water. The wiping plate is retractable and adopts a mechanical structure.

2. The magnetic flocculation separation device according to claim 1, characterized in that, The control valve component is a modular structure, including: The first support member is a fan-shaped structure, which is arranged in a ring array in the flow hole. There is a gap between two adjacent first support members to form a fan-shaped hole. The second support member is a fan-shaped structure, which is arranged in a ring array in the flow hole. It corresponds to the position of the first support member and there is a gap between them to form a rotating cavity. A first driving member is disposed at the center of a first support member and a second support member; A rotating component is disposed within a rotating cavity and is connected to the output end of the first driving component. It is slidably connected to the first support component and the second support component.

3. The magnetic flocculation separation device according to claim 2, characterized in that, The rotating component has the same shape as the fan-shaped hole, and its area is larger than that of the fan-shaped hole.

4. A magnetic flocculation separation method for wastewater treatment, characterized in that, The process steps of using the magnetic flocculation separation device according to any one of claims 1-3 are as follows: 1) The wastewater is introduced into the pulverizing chamber through the inlet component, at which time the control valve component is closed; 2) After the impurities in the wastewater are crushed by the crushing component, a magnetic flocculant is injected into the crushing chamber to produce magnetic flocculents; 3) After the crushing is completed, open the control valve component to allow the crushed wastewater to enter the magnetic suction chamber. The third drive component drives the rotating drum to rotate, so that the wastewater comes into contact with the magnetic suction component and is then magnetically adsorbed. 4) After the magnetic adsorption treatment is completed, the wastewater is discharged through the liquid outlet at the bottom of the rotating drum, and then discharged by the liquid outlet component. 5) The impurities attached to the inner wall of the rotating cylinder are wiped off by the wiping component, and liquid is injected into the working chamber so that the magnetic powder after wiping is discharged with the liquid.

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