Magnetic seed recycling machine for sewage treatment

Abstract

The utility model relates to the technical field of manufacturing of environmental protection equipment, in particular to a magnetic seed recycling machine for sewage treatment, which comprises a box body, a high-speed deflocculation device, a magnetic seed separation device and a magnetic seed stirring and mixing device. The box body is sequentially divided into a sludge floc deflocculation shearing chamber, a magnetic seed separation chamber and a cyclic utilization magnetic seed solution generation chamber. The high-speed deflocculation device, the magnetic seed separation device and the magnetic seed stirring and mixing device are loaded by the box body and respectively act on the sludge floccule deflocculation shearing chamber, the magnetic seed separation chamber and the cyclic utilization magnetic seed solution generation chamber in a one-to-one correspondence manner, so that the whole magnetic seed recovery process is completed in one device. Therefore, on one hand, the equipment manufacturing cost is reduced, the size is miniaturized, the whole machine is convenient to transport, and the required site area is greatly reduced; and on the other hand, due to the integrated design, the number of equipment and connecting pipelines are reduced, the workload of on-site pipe distribution and assembly operation is omitted, and the operation stability and reliability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment manufacturing technology, and in particular to a magnetic seed recovery machine for sewage treatment. Background Technology

[0002] In the field of wastewater treatment, magnetic separation technology has gradually become an important means of solving water pollution problems due to its significant advantages such as fast processing speed, low investment cost, high efficiency, and minimal secondary pollution. The principle of magnetic separation technology is to add magnetic seeds to wastewater. With the help of coagulants and flocculants, non-magnetic suspended solids combine with the magnetic seeds to form micro-magnetic flocs. These micro-magnetic flocs then flow into a magnetic separation device, where solid-liquid separation is achieved under the action of a strong magnetic field, purifying the wastewater. The separated magnetic seeds are then recycled.

[0003] In existing magnetic seed recovery processes, a high-speed deflocculation device is typically used to break up magnetic flocs formed by the combination of magnetic seeds and non-magnetic substances. Then, a magnetic seed separation device uses magnetic force to adsorb the magnetic seeds, separating them from the non-magnetic substances. Finally, the recovered magnetic seeds are transported to a magnetic seed mixing device, where water is added to prepare a magnetic seed solution for pumping into the wastewater for reuse. Currently, the high-speed deflocculation device, magnetic seed separation device, and magnetic seed mixing device are all independent units connected by pipelines. This results in complex on-site piping and assembly operations, requiring highly skilled workers and consuming a large area. Furthermore, maintenance personnel spend a significant amount of time troubleshooting various equipment and pipeline connections during maintenance and repair.

[0004] Against this backdrop, developing an integrated magnetic seed recovery machine for wastewater treatment that can efficiently recover magnetic seeds while addressing many drawbacks of existing technologies is of significant practical importance and urgency. Utility Model Content

[0005] Therefore, in view of the above-mentioned existing problems and defects, the designers of this utility model collected relevant information, conducted multiple evaluations and considerations, and carried out continuous experiments and modifications by technical personnel with many years of R&D experience in this industry, which ultimately led to the emergence of this magnetic seed recovery machine for sewage treatment.

[0006] This utility model relates to a magnetic seed recovery machine for wastewater treatment, comprising a housing, a high-speed deflocculation device, a magnetic seed separation device, and a magnetic seed stirring and mixing device. Along its length, the housing is sequentially divided into a sludge floc deflocculation and shearing chamber, a magnetic seed separation chamber, and a magnetic seed solution recycling chamber. The high-speed deflocculation device, the magnetic seed separation device, and the magnetic seed stirring and mixing device are all powered by the housing, and each of them corresponds to one of the sludge floc deflocculation and shearing chambers, the magnetic seed separation chamber, and the magnetic seed solution recycling chamber.

[0007] As a further improvement to the technical solution disclosed in this utility model, the high-speed deflocculation device includes a left-side mounting base, a left-side motor, and a shearing agitator. The left-side mounting base serves as the mounting foundation for the left-side motor, and it is placed and fixed to the top wall of the housing. The shearing agitator is driven by the left-side motor and penetrates into the sludge floc deflocculation shearing chamber to a set depth. During the operation of the left-side motor, the sludge flocs are released from adhesion due to continuous centrifugal force and shear force, and the flocs become free.

[0008] As a further improvement to the technical solution disclosed in this utility model, the high-speed deflocculation device also includes a shearing enhancement unit. The shearing enhancement unit consists of multiple shearing plates welded and fixed to the sludge floc deflocculation shearing chamber.

[0009] As a further improvement to the technical solution disclosed in this utility model, the magnetic seed separation device includes a central mounting base, a front bearing seat, a rear bearing seat, a geared motor, a rotating shaft, and a magnetic adsorbent. The central mounting base serves as the mounting foundation for the geared motor, and it is fixed by welding to the rear side wall of the housing. The front and rear bearing seats are respectively arranged at the front and rear of the housing, and they work together to support the rotating shaft. The magnetic adsorbent is placed inside the magnetic seed separation chamber, and it is fitted and fixed by the rotating shaft. During the operation of the geared motor, the magnetic adsorbent synchronously rotates around the rotating shaft. Under the magnetic force of the magnetic adsorbent, the magnetic seeds are detached from the sludge flocs and adsorbed by the magnetic adsorbent.

[0010] As a further improvement to the technical solution disclosed in this utility model, the magnetic seed recovery machine for sewage treatment also includes a flexible mud-blocking component. The flexible mud-blocking component is mounted on the top wall of the housing, and its free end hangs down onto the magnetic adsorption body.

[0011] As a further improvement to the technical solution disclosed in this utility model, the magnetic seed stirring and mixing device includes a right-side mounting base, a right-side motor, and a stirring impeller. The right-side mounting base serves as the mounting foundation for the right-side motor, and it is placed and fixed to the top wall of the housing. The stirring impeller is driven by the right-side motor and penetrates to a set depth into the circulating magnetic seed solution generation chamber. During the operation of the right-side motor, the separated magnetic seeds and the added water phase mix to form a circulating magnetic seed solution.

[0012] As a further improvement to the technical solution disclosed in this utility model, the magnetic seed stirring and mixing device also includes a turbulence generation unit. The turbulence generation unit consists of multiple turbulence plates welded and fixed to the circulating magnetic seed solution generation chamber.

[0013] As a further improvement to the technical solution disclosed in this utility model, the magnetic seed recovery machine for wastewater treatment also includes a water level monitoring unit. The water level monitoring unit indirectly reflects the water level change in the recycling magnetic seed solution generation chamber by measuring the displacement of a float.

[0014] As a further improvement to the technical solution disclosed in this utility model, the water level monitoring unit also includes a wave-damping component. The wave-damping component is welded and fixed to the inner wall of the circulating magnetic seed solution generation chamber, forming a receiving cavity for inserting a float. The wave-damping component has at least one water-permeable hole or water-permeable slit, allowing the circulating magnetic seed solution to enter the receiving cavity.

[0015] In practical applications, the magnetic seed recovery machine for wastewater treatment disclosed in this utility model can achieve at least the following beneficial technical effects, specifically:

[0016] 1) The high-speed deflocculation device, magnetic seed separation device, and magnetic seed stirring and mixing device are integrated into a single unit, and are sequentially divided into chambers with different functions, allowing the entire magnetic seed recovery process to be completed within one device. This significantly reduces the equipment manufacturing cost, allows for a smaller design, facilitates the transport of the entire unit, and greatly reduces the required site area, making it particularly suitable for urban wastewater treatment scenarios where land resources are scarce and space is limited.

[0017] 2) This integrated design reduces the number of devices and connecting pipes, making it easier to perform subsequent maintenance operations, reducing equipment maintenance costs, improving its operational stability and reliability, and reducing subsequent equipment maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the magnetic seed recovery machine for sewage treatment disclosed in this utility model.

[0020] Figure 2 This is a three-dimensional schematic diagram from another perspective of the magnetic seed recovery machine for sewage treatment disclosed in this utility model.

[0021] Figure 3 This is a schematic diagram of the casing of the magnetic seed recovery machine for sewage treatment disclosed in this utility model (with the hidden lines visible).

[0022] Figure 4 yes Figure 1 The front view.

[0023] Figure 5 yes Figure 4 A magnified view of part of I.

[0024] Figure 6 yes Figure 4 AA sectional view.

[0025] Figure 7 yes Figure 4 BB cross-sectional view.

[0026] Figure 8 yes Figure 7 A magnified view of part II.

[0027] Figure 9 yes Figure 4 CC section view.

[0028] Figure 10 This is a three-dimensional schematic diagram of the anti-wave component in the magnetic seed recovery machine for sewage treatment disclosed in this utility model.

[0029] 1-Box body; 11-Sludge floc deflocculation and shearing chamber; 12-Magnetic seed separation chamber; 13-Recycling magnetic seed solution generation chamber; 2-High-speed deflocculation device; 21-Left mounting base; 22-Left motor; 23-Shearing stirring paddle; 231-Paddle rod; 232-Dispersion wheel; 24-Shearing enhancement unit; 241-Shearing plate; 3-Magnetic seed separation device; 31-Middle mounting base; 32-Front bearing seat; 33-Rear bearing seat; 34-Gear motor; 35-Rotating shaft; 36-Magnetic adsorbent; 361-Disc permanent magnet; 4-Magnetic seed stirring and mixing device; 41-Right mounting base; 42-Right motor; 43-Stirring and agitating paddle; 44-Turbulence generation unit; 441-Turbulence plate; 5-Mud-blocking rubber body; 6-Fastening screw assembly; 7-Water level monitoring unit; 71-Float; 72-Wave protection component; 721-Water-permeable seam. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", 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 utility model 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 utility model.

[0031] The present invention will be further described in detail below with reference to specific embodiments. Figure 1 , Figure 2Two perspective views of the magnetic seed recovery machine for wastewater treatment disclosed in this utility model are shown, revealing that it mainly consists of a housing 1, a high-speed deflocculation device 2, a magnetic seed separation device 3, and a magnetic seed stirring and mixing device 4. The housing 1 is constructed from corrosion-resistant metal plates welded together, and its internal cavity is divided into interconnected sludge floc deflocculation and shearing chamber 11, a magnetic seed separation chamber 12, and a magnetic seed solution recycling chamber 13 by adding partitions. The high-speed deflocculation device 2, the magnetic seed separation device 3, and the magnetic seed stirring and mixing device 4 are all supported by the housing 1, and each of the three functions corresponds to one of the sludge floc deflocculation and shearing chamber 11, the magnetic seed separation chamber 12, and the magnetic seed solution recycling chamber 13 (e.g., [missing information]). Figure 3 (as shown in the image).

[0032] The high-speed deflocculation device 2 acts on the sludge floc deflocculation shearing chamber 11, using the shearing force generated by the high-speed rotating machinery to completely break up the sludge flocs, so that the magnetic seeds are in a free state, so that the subsequent magnetic seed separation device 3 can better recover the magnetic seeds.

[0033] The magnetic seed separation device 3 functions within the magnetic seed separation chamber 12, using high-strength magnetic force to rapidly adsorb and separate free magnetic seeds from other non-magnetic materials, facilitating subsequent recycling.

[0034] The magnetic seed stirring device 4 operates in the recycling magnetic seed solution generation chamber 13. Through stirring, the recovered magnetic seeds can be fully mixed with the added water and other solvents to form a uniform recycling magnetic seed solution.

[0035] In the above technical solution, the high-speed deflocculation device 2, the magnetic seed separation device 3 and the magnetic seed stirring and mixing device 4 are integrated into one unit through the box 1, and are sequentially separated into chambers with different functions (i.e., sludge floc deflocculation and shearing chamber 11, magnetic seed separation chamber 12 and magnetic seed solution recycling chamber 13, respectively), so that the entire magnetic seed recycling process is completed in one device.

[0036] By adopting the above technical solutions, on the one hand, the equipment manufacturing cost is significantly reduced, and the design size can be miniaturized, making it easier to transport the whole machine and significantly reducing the required site area, which is especially suitable for urban sewage treatment scenarios where land resources are scarce and space is limited; on the other hand, the integrated design reduces the number of equipment and connecting pipes, making it easier to perform subsequent maintenance operations, reducing equipment maintenance costs, and improving its operational stability and reliability, and further reducing subsequent equipment maintenance costs.

[0037] like Figure 4 , Figure 6As shown, the high-speed deflocculation device 2 mainly consists of a left-side mounting base 21, a left-side motor 22, and a shearing agitator 23. The left-side mounting base 21 serves as the mounting foundation for the left-side motor 22, and is placed on and detachably fixed to the top wall of the housing 1 using bolts. The shearing agitator 23 mainly consists of a shaft 231 and a dispersing wheel 232. The rotating shaft 231 extends to a set depth into the sludge floc deflocculation shearing chamber 11, and performs high-speed circumferential rotation due to the direct torque from the left-side motor 22. The dispersing wheel 232 is fitted onto and fixed to the free end of the shaft 231. During the operation of the left-side motor 22, the sludge flocs are released from adhesion due to the continuous centrifugal and shearing forces from the dispersing wheel 232, allowing the flocs to become free. In practical applications, the power and speed of the left-side motor 22 can be selected and adjusted according to actual deflocculation requirements to adapt to the deflocculation requirements of sludge flocs of different properties and concentrations.

[0038] Furthermore, by Figure 6 As can be clearly seen from the diagram, the high-speed deflocculation device 2 is also equipped with a shear enhancement unit 24. The shear enhancement unit 24 consists of multiple shear plates 241 welded and fixed within the sludge floc deflocculation shear chamber 11. During the high-speed operation of the shearing agitator 23, the multiple shear plates 241 work together to influence the flow boundary and flow field distribution of the fluid, allowing the sludge flocs to form specific turbulence within the deflocculation shear chamber 11, which further enhances the deflocculation effect and also helps to improve the equipment's processing capacity per unit time.

[0039] like Figure 4 , Figure 7 As shown, the magnetic seed separation device 3 mainly consists of a central mounting base 31, a front bearing seat 32, a rear bearing seat 33, a geared motor 34, a rotating shaft 35, and a magnetic adsorbent 36. The central mounting base 31 serves as the mounting foundation for the geared motor 34, and it is welded and fixed to the rear side wall of the housing 1. The front bearing seat 32 and the rear bearing seat 33 are respectively arranged at the front and rear of the housing 1, and they work together to support the rotating shaft 35. The magnetic adsorbent 36 is built into the magnetic seed separation chamber 12, and it is fitted and fixed to the rotating shaft 35. During the operation of the geared motor 34, the magnetic adsorbent 36 synchronously rotates with the rotating shaft 35. Under the action of the magnetic field force from the magnetic adsorbent 36, the magnetic seeds are detached from the sludge flocs and adsorbed by the magnetic adsorbent 36. Compared with traditional static magnetic field adsorption, the rotating magnetic field adsorption method can continuously change the relative position between the magnetic field and the sludge flocs, making it easier for the magnetic seeds to be separated from the sludge flocs, thereby greatly improving the magnetic seed separation efficiency.

[0040] Furthermore, such as Figure 7As shown, the magnetic adsorbent 36 is composed of multiple disc-shaped permanent magnets 361 arranged at equal intervals and sequentially mounted on the rotating shaft 35. Each disc-shaped permanent magnet 361 has its own independent magnetic field, and the magnetic fields of adjacent disc-shaped permanent magnets 361 are superimposed and supplemented. This results in a more uniform magnetic field distribution around the entire magnetic adsorbent 36, reducing weak areas and dead zones in the magnetic field, and expanding the magnetic field coverage. This ensures that the sludge flocs in each area of ​​the magnetic seed separation chamber 12 are subjected to the magnetic field as fully as possible, thereby improving the efficiency and thoroughness of magnetic seed separation. Furthermore, during the rotation of the disc-shaped permanent magnets 361, they can contact the magnetic seeds in the sludge flocs with a larger surface area. The sequential arrangement of multiple disc-shaped permanent magnets 361 further increases the contact opportunities with the magnetic seeds.

[0041] like Figure 7 , Figure 8 As shown, the magnetic seed separation device 3 is equipped with a mud-blocking rubber body 5. The mud-blocking rubber body 5 is mounted on the top wall of the housing 1, and the two are detachably fixed by means of a fastening screw assembly 6. After the mud-blocking rubber body 5 is installed in place, its free end hangs down onto the magnetic adsorption body 36. In this way, some sludge flocs fall towards the disc-shaped permanent magnet 361 due to the blocking force from the mud-blocking rubber body 5, effectively preventing some sludge flocs from passing over the disc-shaped permanent magnet 361 without undergoing magnetic seed separation, which helps to further improve the thoroughness of magnetic seed separation.

[0042] like Figure 4 , Figure 9 As shown, the magnetic seed mixing device 4 mainly consists of a right-side mounting base 41, a right-side motor 42, and a stirring impeller 43. The right-side mounting base 41 serves as the mounting foundation for the right-side motor 42, and is placed and fixed to the top wall of the housing 1. The stirring impeller 43 is driven by the right-side motor 42 and extends to a predetermined depth within the circulating magnetic seed solution generation chamber 13. During the operation of the right-side motor 41, the separated magnetic seeds mix with the added water to form a circulating magnetic seed solution. During the operation of the wastewater treatment magnetic seed recovery machine, the stirring impeller 43 generates shear force and convection due to its circumferential rotation, promoting more uniform dispersion of the separated magnetic seeds in the water and effectively preventing uneven distribution caused by gravity settling or agglomeration of the magnetic seeds. Furthermore, the right-hand motor 42 is preferably a servo motor, which facilitates precise adjustment of stirring parameters according to different magnetic seed characteristics, the quality of the added water, and the required concentration of the recycled magnetic seed solution, thereby achieving precise control of the mixing process.

[0043] Furthermore, by Figure 9As can be clearly seen from the diagram, the magnetic seed stirring and mixing device 4 is also equipped with a turbulence generation unit 44. The turbulence generation unit 44 consists of multiple turbulence plates 441 welded and fixed inside the recycling magnetic seed solution generation chamber 13. Thus, when the stirring impeller 43 pushes the separated magnetic seeds and the replenished water to flow, the water flow changes from a relatively regular state to a turbulent state after encountering the turbulence plates 441. This causes the fluid to form multiple turbulent flows with different directions and velocities within the chamber, making the mixing of micro-clusters inside the fluid more intense. This greatly increases the contact opportunities between the magnetic seeds and water, ensuring the homogenization of the recycling magnetic seed solution and significantly shortening the mixing time.

[0044] like Figure 4 , Figure 5 As shown, in order to monitor the water level changes in the recycling magnetic seed solution generation chamber 13 in real time, the wastewater treatment magnetic seed recovery machine is also equipped with a water level monitoring unit 7. The water level monitoring unit 7 indirectly reflects the water level changes in the recycling magnetic seed solution generation chamber 13 by measuring the displacement of the float 71.

[0045] However, during the operation of the magnetic seed recovery machine for wastewater treatment, the solution in the circulating magnetic seed solution generation chamber 12 generates waves due to the excitation force, which inevitably affects the floating stability of the float 71, leading to frequent serious distortion of monitoring data. Therefore, as a further optimization of the above technical solution, such as... Figure 5 As shown, the water level monitoring unit 7 is also equipped with a wave-damping component 72. For example... Figure 10 As shown, the wave-damping component 72 is assembled from multiple corrosion-resistant plates. The wave-damping component 72 is welded and fixed to the inner wall of the circulating magnetic seed solution generation chamber 13 to form an open-topped receiving cavity for inserting the float 71. A water-permeable slit 721 is provided on the wave-damping component 72, allowing the circulating magnetic seed solution to smoothly enter the receiving cavity.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present 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 present invention. Therefore, the present 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 seed recovery machine for wastewater treatment, characterized in that, The device includes a housing, a high-speed deflocculation device, a magnetic seed separation device, and a magnetic seed stirring and mixing device. Along its length, the housing is sequentially divided into a sludge floc deflocculation and shearing chamber, a magnetic seed separation chamber, and a magnetic seed solution recycling chamber. The high-speed deflocculation device, the magnetic seed separation device, and the magnetic seed stirring and mixing device are all supported by the housing, and each of them acts on the sludge floc deflocculation and shearing chamber, the magnetic seed separation chamber, and the magnetic seed solution recycling chamber, respectively.

2. The magnetic seed recovery machine for wastewater treatment according to claim 1, characterized in that, The high-speed deflocculation device includes a left-side mounting base, a left-side motor, and a shearing agitator. The left-side mounting base serves as the mounting foundation for the left-side motor, and it is placed and fixed to the top wall of the housing. The shearing agitator is driven by the left-side motor and penetrates into the sludge floc deflocculation shearing chamber to a set depth. During the operation of the left-side motor, the sludge flocs are released from adhesion due to continuous centrifugal force and shear force, and the flocs become free.

3. The magnetic seed recovery machine for wastewater treatment according to claim 2, characterized in that, The high-speed deflocculation device also includes a shearing enhancement unit; the shearing enhancement unit consists of multiple shearing plates welded and fixed to the sludge floc deflocculation shearing chamber.

4. The magnetic seed recovery machine for wastewater treatment according to claim 1, characterized in that, The magnetic seed separation device includes a central mounting base, a front bearing seat, a rear bearing seat, a geared motor, a rotating shaft, and a magnetic adsorbent. The central mounting base serves as the mounting foundation for the geared motor, and it is fixed by welding to the rear side wall of the housing. The front bearing seat and the rear bearing seat are respectively arranged at the front and rear of the housing, and they work together to support the rotating shaft. The magnetic adsorbent is placed inside the magnetic seed separation chamber, and it is fitted and fixed to the rotating shaft. During the operation of the geared motor, the magnetic adsorbent synchronously rotates around the rotating shaft. Under the magnetic force of the magnetic adsorbent, the magnetic seeds are detached from the sludge flocs and adsorbed by the magnetic adsorbent.

5. The magnetic seed recovery machine for wastewater treatment according to claim 4, characterized in that, It also includes a flexible mudguard; the flexible mudguard is mounted on the top wall of the box, and its free end hangs down on the magnetic adsorption body.

6. The magnetic seed recovery machine for wastewater treatment according to claim 1, characterized in that, The magnetic seed stirring and mixing device includes a right-side mounting base, a right-side motor, and a stirring and agitating paddle; the right-side mounting base is used as the mounting base for the right-side motor, and it is placed and fixed to the top wall of the housing. The stirring impeller is driven by the right-hand motor and penetrates to a set depth into the recycling magnetic seed solution generation chamber; during the operation of the right-hand motor, the separated magnetic seeds and the added water phase mix to form a recycling magnetic seed solution.

7. The magnetic seed recovery machine for wastewater treatment according to claim 6, characterized in that, The magnetic seed stirring and mixing device also includes a turbulence generation unit; the turbulence generation unit is composed of multiple turbulence plates welded and fixed to the circulating magnetic seed solution generation chamber.

8. The magnetic seed recovery machine for wastewater treatment according to claim 1, characterized in that, It also includes a water level monitoring unit; the water level monitoring unit indirectly reflects the water level change in the recycling magnetic seed solution generation chamber by measuring the displacement of the float.

9. The magnetic seed recovery machine for wastewater treatment according to claim 8, characterized in that, The water level monitoring unit also includes a wave-proof component; the wave-proof component is welded and fixed to the inner wall of the circulating magnetic seed solution generation chamber to form a receiving cavity for inserting the float; the wave-proof component has at least one water-permeable hole or water-permeable slit, so that the circulating magnetic seed solution can enter the receiving cavity.

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