Sweet potato vermicelli sewage gradient magnetic field pretreatment and magnetic seed circulation device

Abstract

The invention discloses a sweet potato vermicelli sewage gradient magnetic field pretreatment and magnetic seed circulation device, and relates to the technical field of sewage treatment.The sweet potato vermicelli sewage gradient magnetic field pretreatment and magnetic seed circulation device comprises a coagulation reaction device, a gradient magnetic separator and a magnetic seed cleaning tank, the gradient magnetic separator comprises a machine body, two sets of collection boxes and a rotating ring, and multiple sets of medium boxes are arranged in the rotating ring in an array mode; a plurality of sets of steel bristles are fixedly arranged on the medium box, a cleaning mechanism is arranged on the collecting box, and the cleaning mechanism comprises a rotating rod and a plurality of sets of long electromagnet plates arranged outside the rotating rod. According to the device, the designed cleaning mechanism and the adjusting part are combined, an annular structure composed of a long electromagnet plate, an inner electromagnet plate and a short electromagnet plate generates magnetism when powered on, residual magnetic floccules on the surface of the steel wool can be adsorbed, and when a rotating ring drives the steel wool to rotate to the position above a collecting box, the electromagnet plates are powered on to adsorb the residual floccules; and then the power is cut off to enable the floccules to fall into the collecting box, so that the floccules are prevented from being stacked and adsorbed on the steel wool surface.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a gradient magnetic field pretreatment and magnetic seed circulation device for sweet potato vermicelli sewage. Background Art

[0002] The wastewater generated during the processing of sweet potato vermicelli contains a large amount of organic matter and suspended solids such as starch and protein. If discharged directly, it will cause serious environmental pollution. At present, the technology of gradient magnetic field pretreatment combined with magnetic seed circulation has become an important means of treating this type of wastewater. By adding magnetic seeds and flocculants to the sewage in the coagulation reaction device, the magnetic seeds, flocculants and pollutants form magnetic flocs; then the magnetic flocs enter the feed hopper of the gradient magnetic separator, and then enter the gap inside the body and come into contact with the rotating ring. The gradient magnetic field formed by the high magnetic permeability steel wool in the rotating ring is used to achieve adsorption and separation; the magnetic flocs adsorbed on the surface of the steel wool at the bottom rotate with the rotating ring to the top magnetic field-free area, and after being flushed by the flushing water in the flusher, they fall into the collection box, and the non-magnetic clean water is discharged into the bottom hopper. After the magnetic flocs in the collection box are desludged in the magnetic seed cleaning tank, the magnetic seeds can be recycled back to the coagulation reaction device, reducing treatment costs.

[0003] When the rotating ring drives the steel wool to the top non-magnetic field zone, although the rinsing water can peel off most of the magnetic flocs, a small amount of flocs will still remain on the surface of the steel wool due to strong adsorption or incomplete rinsing. When these residual flocs re-enter the magnetic field zone with the steel wool, they will overlap and adsorb with the newly formed magnetic flocs, resulting in a decrease in the effective adsorption sites on the steel wool surface. In turn, the amount of magnetic flocs adsorbed by the steel wool in a single cycle decreases, resulting in a slowdown in wastewater pretreatment, a longer treatment cycle, and an increase in magnetic seed loss and the load on the subsequent cleaning tank. To address this problem, we proposed a gradient magnetic field pretreatment and magnetic seed circulation device for sweet potato vermicelli wastewater. Summary of the Invention

[0004] The purpose of the present invention is to provide a sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device to solve the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device, comprising a coagulation reaction device, a gradient magnetic separator and a magnetic seed cleaning tank, wherein the gradient magnetic separator comprises a body, two sets of collection boxes and a rotating ring, wherein the internal array of the rotating ring is provided with multiple sets of medium boxes, multiple sets of steel wool are fixedly provided on the medium boxes, and a cleaning mechanism is provided on the collection box, wherein the cleaning mechanism comprises: A rotating rod and a plurality of groups of long electromagnetic plates arranged outside the rotating rod, wherein the inner wall of the long electromagnetic plate is slidably provided with an inner electromagnetic plate, and the outer wall of the inner electromagnetic plate is fixedly provided with a short electromagnetic plate; The outside of the rotating rod is respectively sleeved with a fixed disk and a rotating baffle ring, the inner wall of the fixed disk is respectively fixedly provided with a charged plate and a non-charged plate, the outside of the short electromagnet plate is fixedly provided with an L-shaped conductive column, and the end of the L-shaped conductive column is fixedly provided with a contact head.

[0006] Preferably, a plurality of sets of fixing rods are fixedly provided between the inner wall of the long electromagnet plate and the rotating rod, and a driving motor is fixedly provided at the end of the rotating rod.

[0007] Preferably, an adjusting member is provided between the short electromagnet plate and the rotating rod, and the adjusting member includes a mounting ring sleeved on the outside of the rotating rod, a fixing rod 2 is fixedly provided between the mounting ring and the inner electromagnet plate, and a locking screw is threadedly connected to the inside of the mounting ring.

[0008] Preferably, the collecting box is provided with a scraping member for scraping off the magnetic flocs attached to the outer walls of the long electromagnetic plate, the inner electromagnetic plate and the short electromagnetic plate, and the scraping member comprises: A long scraper and a fixed frame fixed to the collection box by screws, a short scraper is slidably arranged on the fixed frame, and L-shaped scrapers are fixedly arranged at the ends of the short scraper and the long scraper, a sliding groove is opened inside the L-shaped scraper, a movable scraper slides inside the sliding groove, and a mounting spring is fixedly arranged between the end of the movable scraper and the inner wall of the sliding groove.

[0009] Preferably, a stud is fixedly provided on the surface of the short scraper strip, and a spiral ring is connected to the outside of the stud via a thread.

[0010] Preferably, the outside of the rotating rod is further provided with a flushing member for cleaning the magnetic flocs that fall on the inner walls of the long electromagnetic plate, the inner electromagnetic plate and the short electromagnetic plate, and the flushing member comprises: A hollow ring frame is fixed on the inner wall of the collection box, and a square tube is fixedly provided on the bottom surface of the hollow ring frame. Multiple groups of telescopic tubes are fixedly provided on the square tube, and nozzles are fixedly provided on the ends of the telescopic tubes. A water pipe is fixedly provided on the top of the hollow ring frame.

[0011] Preferably, the square tube is provided with an adjusting part for adjusting the angle of the nozzle, and the adjusting part includes a vertical plate rotatably connected by a rotating shaft, a threaded rod is fixedly provided on the top of the vertical plate, a circular plate is fixedly provided on the top of the square tube, and a threaded ring is threadedly connected to the outside of the threaded rod.

[0012] Preferably, an excitation coil is fixedly provided inside the machine body, and a bottom bucket is fixedly provided at the bottom of the machine body.

[0013] Preferably, two sets of bearing seats are fixedly provided on the machine body, a drive shaft is rotatably provided inside the bearing seat, and a support ring is fixedly provided outside the drive shaft.

[0014] Preferably, a feeding hopper and a flusher are fixedly provided on the top of the machine body, and a plurality of punches are fixedly provided on the bottom of the flusher.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention combines a cleaning mechanism and an adjusting part by designing a ring structure composed of a long electromagnet plate, an inner electromagnet plate and a short electromagnet plate, which generates magnetism when energized and can adsorb the magnetic flocs remaining on the surface of the steel wool. When the rotating ring drives the steel wool to rotate above the collection box, the electromagnet plate is energized to adsorb the remaining flocs, and then the power is turned off to allow the flocs to fall into the collection box, thereby preventing the flocs from being superimposed and adsorbed on the surface of the steel wool. At the same time, the position of the inner electromagnet plate and the short electromagnet plate can be adjusted, thereby changing the overall length of the combination of the long electromagnet plate, the inner electromagnet plate and the short electromagnet plate, so as to adapt to the use of rotating rings of different widths.

[0016] (2) The present invention has a scraping member designed, which includes a long scraping bar, a short scraping bar and an L-shaped scraping bar. When the long electromagnetic plate, the short electromagnetic plate and the inner electromagnetic plate rotate with the rotating rod, the long scraping bar, the short scraping bar and the L-shaped scraping bar scrape their outer surfaces, and scrape a small amount of magnetic flocs still attached after power failure into the collection box, thereby avoiding the magnetic flocs from remaining on the outer surfaces of the long electromagnetic plate, the short electromagnetic plate and the inner electromagnetic plate. When the device is adapted to rotating rings or medium boxes of different widths, the scraping member can be adjusted synchronously to ensure that the surfaces of electromagnetic plates of different lengths can be effectively scraped, thereby improving the versatility of the device.

[0017] (3) The present invention combines the designed flushing parts and the adjusting parts. The nozzle flushes the inner walls of the long electromagnet plate, the inner electromagnet plate and the short electromagnet plate with high-pressure water flow, which can effectively flush off the magnetic flocs adsorbed or dropped on the inner wall, making up for the limitation that the scraping parts can only clean the outer wall, and realizes all-round cleaning of the inner and outer walls of the electromagnet plate. The adjusting parts can flexibly adjust the inclination angle of the nozzle so that the water flow can accurately cover the inner wall surface at different positions, avoiding the cleaning blind area caused by the fixed angle, enhancing the adaptability of the device to different working conditions, forming a synergistic effect with the scraping parts and the cleaning mechanism, fundamentally improving the efficiency of the gradient magnetic field pretreatment, reducing the magnetic seed loss, and improving the efficient treatment of sweet potato vermicelli wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the gradient magnetic separator of the present invention; Figure 3 This is a schematic diagram of the structure of the gradient magnetic separator of the present invention when viewed from above; Figure 4 It is a schematic diagram of the body structure of the present invention; Figure 5 It is a schematic diagram of the rotating ring structure of the present invention; Figure 6 It is a schematic structural diagram of the media box of the present invention; Figure 7 This is a schematic structural diagram of the collection box of the present invention; Figure 8 This is a schematic diagram of the rear structure of the collection box of the present invention; Figure 9 It is a schematic structural diagram of the short electromagnet plate of the present invention; Figure 10 It is a bottom view structural diagram of the short electromagnetic plate and the long electromagnetic plate of the present invention; Figure 11 This is a schematic diagram of the structure of the fixing frame and the short scraper strip of the present invention; Figure 12 This is a schematic diagram of the cross-sectional structure of the nozzle of the present invention; Figure 13 This is a schematic diagram of the L-shaped scraper structure of the present invention; Figure 14 A schematic diagram of the structure of the fixing plate and the outer sleeve of the present invention; In the figure: 100, coagulation reaction device; 101, gradient magnetic separator; 102, magnetic seed cleaning tank; 103, rinser; 104, drive shaft; 105, feed hopper; 106, machine body; 107, bottom hopper; 108, excitation coil; 109, rotating ring; 110, bearing seat; 111, arc baffle; 112, collecting box; 113, screen; 114, support ring; 115, steel wool; 116, medium box; 200, drive motor; 201, fixed plate; 202, rotating rod; 203, short electromagnetic plate; 204, inner electromagnetic plate; 205, Long electromagnet plate; 206, rotating retaining ring; 207, locking screw; 208, connecting wire; 209, mounting ring; 212, outer sleeve; 213, charged plate; 214, contact head; 215, non-charged plate; 300, hollow ring frame; 301, square tube; 302, vertical plate; 303, nozzle; 304, telescopic tube; 305, threaded ring; 306, circular plate; 307, threaded rod; 400, fixing frame; 401, stud; 402, short scraper; 403, L-shaped scraper; 404, long scraper; 405, movable scraper; 406, mounting spring. DETAILED DESCRIPTION

[0019] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1 See also Figures 1-10 and Figure 14 The present invention provides a technical solution: a gradient magnetic field pretreatment and magnetic seed circulation device for sweet potato vermicelli wastewater, which sequentially includes a coagulation reaction device 100, a gradient magnetic separator 101, and a magnetic seed cleaning tank 102. The gradient magnetic separator 101 includes a body 106, two sets of collection boxes 112 arranged above the body 106, and a swivel 109 rotatably arranged on the body 106 (the swivel 109 rotates counterclockwise when viewed from the left). Two sets of arc-shaped baffles 111 are installed between the bottom of the swivel 109 and the body 106. The two sets of arc-shaped baffles 111 can prevent the wastewater from flowing out. The internal array of the swivel 109 is provided with multiple sets of medium boxes 116, and multiple sets of steel wool 115 are fixedly provided on the medium boxes 116. The collection box 112 is provided with a cleaning mechanism, which includes: The rotating rod 202 disposed inside the collecting box 112 and the multiple sets of long electromagnetic plates 205 disposed outside the rotating rod 202 are rotated. The inner electromagnetic plate 204 is slidably disposed on the inner wall of the long electromagnetic plate 205. The short electromagnetic plate 203 is fixedly disposed on the outer wall of the inner electromagnetic plate 204. The multiple sets of long electromagnetic plates 205, the inner electromagnetic plate 204 and the short electromagnetic plates 203 form an annular structure. The outside of the rotating rod 202 is respectively provided with a fixed disk 201 and a rotating baffle ring 206, and the rotating baffle ring 206 can rotate with the rotation of the rotating rod 202. The bottom of the fixed disk 201 is fixed to the collection box 112 through an L frame, so that the fixed disk 201 will not rotate during the cleaning process. The outside of the fixed disk 201 is connected to the external power supply through an electric wire. The inner wall of the fixed disk 201 is respectively fixed with a charged plate 213 and a non-charged plate 215. The outside of the short electromagnetic plate 203 is fixedly provided with an L-shaped conductive column, and the outside of the L-shaped conductive column is provided with a jacket 212. The end of the L-shaped conductive column passes through the inside of the rotating baffle ring 206. The end of the L-shaped conductive column is fixedly provided with a contact head 214, and the contact head 214 can contact the charged plate 213 and the non-charged plate 215, and is used to power the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205; Multiple sets of fixing rods are fixedly provided between the inner wall of the long electromagnetic plate 205 and the rotating rod 202. The drive motor 200 is fixedly provided at the end of the rotating rod 202. A sealed bearing is fixedly provided on the inner wall of the rotating retaining ring 206, and the sealed bearing sleeve is fixed to the outer side of the rotating rod 202. A connecting wire 208 is fixedly provided between the long electromagnetic plate 205 and the L-shaped conductive column to electrically connect the inner electromagnetic plate 204 and the long electromagnetic plate 205. An adjusting member is provided between the short electromagnet plate 203 and the rotating rod 202, and the adjusting member includes a mounting ring 209 sleeved on the outside of the rotating rod 202, and a fixing rod 2 is fixedly provided between the mounting ring 209 and the inner electromagnet plate 204. The interior of the mounting ring 209 is connected to a locking screw 207 through a thread, and the working end of the locking screw 207 extends to the surface of the rotating rod 202.

[0021] In summary, the rotation of the rotating ring 109 drives the multiple groups of medium boxes 116 to rotate, and the medium box 116 drives the steel wool 115 to rotate, and then the multiple groups of steel wool 115 in the lower medium box 116 are washed by the flusher 103, and the magnetic flocs attached to the steel wool 115 are washed off, and some magnetic flocs that have not fallen off and continue to attach to the steel wool 115 are attracted by the long electromagnetic plate 205, the inner electromagnetic plate 204 and the short electromagnetic plate 203 to make the magnetic flocs on the steel wool 115 fall off. When the magnetic flocs on the steel wool 115 are attracted to the long electromagnetic plate 205, the inner electromagnetic plate 204 and the short electromagnetic plate 203, the magnetic flocs on the steel wool 115 are driven The working end of the motor 200 drives the rotating rod 202 to rotate. The rotating rod 202 drives the long electromagnet plate 205 to rotate via the first fixing rod. At the same time, the rotating rod 202 also drives the inner electromagnet plate 204 to rotate via the mounting ring 209 and the second fixing rod. The inner electromagnet plate 204 drives the short electromagnet plate 203 to rotate. The rotation of the short electromagnet plate 203 drives the multiple groups of L-shaped conductive posts, the outer sleeves 212 of the L-shaped conductive posts, and the contact heads 214 at the ends of the L-shaped conductive posts to rotate (it also drives the rotating retaining ring 206 to rotate. The rotating retaining ring 206 can block water and prevent water from entering the surfaces of the charged plate 213 and the non-charged plate 215). At this time, since the charged plate 213 is energized and charged, and the uncharged plate 215 is not charged, when the contact head 214 rotates to contact the charged plate 213, the contact head 214 is charged, and the short electromagnetic plate 203 and the inner electromagnetic plate 204 are charged through the L-shaped conductive column, and the long electromagnetic plate 205 is energized and charged through the connecting line 208. At this time, the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 are energized to generate magnetism, and some magnetic flocs that have not fallen off the steel wool 115 are magnetically attracted to the outer walls of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205. At this time, the magnetic flocs on the steel wool 115 fall off. As the contact head 214 rotates, when it contacts the uncharged plate 215, the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 are de-energized. Then, the magnetic flocs attracted to the outer surfaces of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 fall into the collection box 112. This process is repeated, thereby attracting some magnetic flocs that have not fallen off the steel wool 115 and dropping them into the collection box 112. Moreover, the length of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 can be adjusted according to the width of different rotating rings 109, that is, the length of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 can be adjusted according to the length of the medium box 116, thereby adjusting the length of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 according to the length of the multiple groups of steel wool 115 in the medium box 116. When adjusting, the locking screw 207 on the mounting ring 209 is loosened by turning it upward. At this time, the working end of the locking screw 207 is separated from the surface of the rotating rod 202, and then the mounting ring 209 is moved closer to or Move in the direction away from the rotating retaining ring 206, driving the fixed rod 2, the inner electromagnet plate 204 and the short electromagnet plate 203 to move. After moving, the locking screw 207 is rotated downward and tightened so that the bottom working end of the locking screw 207 contacts the rotating rod 202. At this time, the combined length of the short electromagnet plate 203, the inner electromagnet plate 204 and the long electromagnet plate 205 increases or decreases (when the width of the rotating ring 109 is large, the mounting ring 209 is moved in the direction close to the rotating retaining ring 206, and when the width of the rotating ring 109 is small, the mounting ring 209 is moved in the direction away from the rotating retaining ring 206), increasing the applicability of removing magnetic flocs of different lengths (the length formed by the combination of multiple groups of steel wool 115).

[0022] Example 2 Based on Example 1, please refer to Figure 7 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 13 The collecting box 112 is provided with a scraping member for scraping off the magnetic flocs attached to the outer walls of the long electromagnetic plate 205, the inner electromagnetic plate 204 and the short electromagnetic plate 203. The scraping member includes: The long scraper 404 and the fixing frame 400 fixed to the collection box 112 by screws, the fixing frame 400 is slidably provided with a short scraper 402, the ends of the short scraper 402 and the long scraper 404 are fixedly provided with an L-shaped scraper 403, the interior of the L-shaped scraper 403 is provided with a sliding groove, and the interior of the sliding groove is slidably provided with a movable scraper 405, and a mounting spring 406 is fixedly provided between the end of the movable scraper 405 and the inner wall of the sliding groove, and the end of the movable scraper 405 can contact the side walls of the short electromagnetic plate 203 and the long electromagnetic plate 205; A stud 401 is fixedly provided on the surface of the short scraper strip 402 , and a spiral ring is connected to the outside of the stud 401 via a thread.

[0023] In summary, when the annular structure composed of the long electromagnet plate 205, the inner electromagnet plate 204 and the short electromagnet plate 203 rotates with the rotating rod 202, some of the long electromagnet plates 205, the inner electromagnet plates 204 and the short electromagnet plates 203 rotate to the bottom. At this time, the long electromagnet plates 205, the inner electromagnet plates 204 and the short electromagnet plates 203 are not powered, and most of the magnetic flocs have fallen off. There may be a small amount of magnetic flocs attached to the long electromagnet plates 205, the inner electromagnet plates 204 and the short electromagnet plates 203, and the short scraper strip 402 is in contact with the outer wall of the short electromagnet plate 203. , the L-shaped scraping strip 403 and the movable scraping strip 405 are in contact with the outer wall of the inner electromagnetic plate 204, and the long scraping strip 404 is in contact with the outer wall of the long electromagnetic plate 205. Then, when the annular structure rotates, some magnetic flocs that have not fallen off the long electromagnetic plate 205, the inner electromagnetic plate 204 and the short electromagnetic plate 203 are scraped off by the corresponding short scraping strip 402, the L-shaped scraping strip 403 and the movable scraping strip 405 and dropped onto the collecting box 112, so that the magnetic flocs that have not fallen off the outer walls of the long electromagnetic plate 205, the inner electromagnetic plate 204 and the short electromagnetic plate 203 are all dropped, thereby increasing the cleaning effect on the magnetic flocs; When adjusting the different lengths formed by the combination of the long electromagnetic plate 205, the inner electromagnetic plate 204 and the short electromagnetic plate 203, the exposed part of the outer wall of the inner electromagnetic plate 204 can also be scraped and covered, and the spacing between the long scraper 404 and the short scraper 402 can be adjusted according to the length of the exposed area, that is, the length of the exposed part of the moving scraper 405 in the L-shaped scraper 403 is adjusted according to the outer wall part of the inner electromagnetic plate 204 exposed between the short electromagnetic plate 203 and the long electromagnetic plate 205. During adjustment, when the short electromagnetic plate 203 moves toward or away from the rotating retaining ring 206, the spiral circle outside the stud 401 is rotated outward to loosen it, and then the stud 401 is moved an appropriate distance in the same direction according to the moving direction of the short electromagnetic plate 203, and then the spiral circle is rotated toward the direction close to the fixing frame 400 and tightened. At this time, as the short electromagnetic plate 203 moves, it is located fixed on the long scraper The moving scraper 405 inside the L-shaped scraper 403 on the strip 404 moves toward or away from the short scraper 402, and the end of the moving scraper 405 is always in contact with the surface of the short electromagnet plate 203. At this time, the moving scraper 405 slides inside the L-shaped scraper 403, and the mounting spring 406 stretches or contracts, and the moving scraper 405 inside the L-shaped scraper 403 fixed on the short scraper 402 moves toward or away from the long electromagnet plate 205, and the end of the moving scraper 405 is always in contact with the surface of the long electromagnet plate 205. At this time, the moving scraper 405 slides inside the L-shaped scraper 403, and the two groups of L-shaped scrapers 403 and the two groups of moving scrapers 405 extend or retract so that the moving scraper 405 covers the surface portion of the inner electromagnet plate 204 exposed between the short electromagnet plate 203 and the long electromagnet plate 205. When the inner electromagnet plate 204 rotates, the magnetic flocs on its outer surface can be scraped off.

[0024] Example 3 Based on Example 2, please refer to Figures 1-10 and Figure 12 , the outside of the rotating rod 202 is also provided with a flushing member for cleaning the magnetic flocs that fall on the inner walls of the long electromagnetic plate 205, the inner electromagnetic plate 204 and the short electromagnetic plate 203. The flushing member includes a hollow ring frame 300 fixed to the inner wall of the collection box 112, and a square tube 301 is fixedly provided on the bottom surface of the hollow ring frame 300. A plurality of groups of telescopic tubes 304 are fixedly provided on the square tube 301. A nozzle 303 is fixedly provided at the end of the telescopic tube 304. A water pipe is fixedly provided on the upper part of the hollow ring frame 300; The square tube 301 is provided with an adjustment part for adjusting the angle of the nozzle 303. The adjustment part includes a vertical plate 302 rotatably connected by a rotating shaft. A threaded rod 307 is fixedly provided on the top of the vertical plate 302. A circular plate 306 is fixedly provided on the top of the square tube 301. The end of the threaded rod 307 passes through the interior of the circular plate 306. The outside of the threaded rod 307 is connected to a threaded ring 305 by a thread. A limit plate is fixedly provided on the outside of the threaded rod 307.

[0025] In summary, before cleaning the magnetic flocs, the water pipe is connected to the external water supply equipment, and then the water passes through the hollow ring frame 300, the square tube 301, and the telescopic tube 304 in sequence to the nozzle 303. At this time, the nozzle 303 flushes the inner walls of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205. During the cleaning process, some magnetic flocs that have fallen or been magnetically attracted and attached to the inner walls of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 during the adsorption process can be flushed into the collection box 112, thereby improving the cleaning quality of the magnetic flocs on the inner wall surfaces of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205. The scraper cooperates with the scraper to clean the magnetic flocs attached to the inner and outer walls of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205. Moreover, multiple nozzles 303 can be used at a tilted angle as needed. When tilting, the threaded ring 305 on the outside of the threaded rod 307 is rotated outward to loosen it, and then the vertical plate 302 is moved upward or downward to drive the nozzle 303 to tilt upward or downward at a certain angle, and then the threaded ring 305 is rotated toward the direction close to the circular plate 306 to tighten the threaded rod 307, so as to adjust the tilt angle of the nozzle 303, so that the nozzle 303 sprays water at an inclined angle to the inner wall surfaces of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205 to flush the magnetic flocs, thereby increasing the cleaning effect of the magnetic flocs on the inner wall surfaces of the short electromagnetic plate 203, the inner electromagnetic plate 204 and the long electromagnetic plate 205.

[0026] In this embodiment, an excitation coil 108 is fixedly provided inside the body 106. The excitation coil 108 can make the multiple groups of steel wool 115 in the medium box 116 at the bottom of the rotating ring 109 magnetic (the steel wool 115 is made of high magnetic permeability material and is easily magnetized in the magnetic field of the excitation coil 108. After magnetization, a very strong magnetic field gradient is formed near its surface. The larger the magnetic field gradient, the stronger the attraction to the magnetic particles). When the steel wool 115 at the bottom of the rotating ring 109 rotates upward to a position close to the top, the magnetism of the steel wool 115 slowly weakens until it has no magnetism (away from the magnetic field in the excitation coil 108). At this time, some of the magnetic flocs fall directly, some are washed off by the flusher 103, and finally a small amount continues to adhere to the steel wool 115, which is attracted by the long electromagnet plate 205, the inner electromagnet plate 204 and the short electromagnet plate 203 so that the magnetic flocs fall off to the collection box 112. A bottom bucket 107 is fixedly provided at the bottom of the body 106.

[0027] In this embodiment, two sets of bearing seats 110 are fixedly provided on the body 106. The bearing seats 110 facilitate the rotation of the drive shaft 104, thereby driving the support ring 114 and the rotating ring 109 to rotate. The drive shaft 104 is rotatably provided inside the bearing seat 110, and the support ring 114 is fixedly provided outside the drive shaft 104, and the rotating ring 109 is fixed to the outside of the support ring 114. The screen 113 is fixedly provided on the medium box 116.

[0028] In this embodiment, the top of the machine body 106 is fixedly provided with a feed hopper 105 and a flusher 103 , the bottom of the flusher 103 is fixedly provided with multiple sets of punches, and the side of the collection box 112 is fixedly provided with a discharge pipe.

[0029] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device, comprising a coagulation reaction device (100), a gradient magnetic separator (101) and a magnetic seed cleaning tank (102), wherein the gradient magnetic separator (101) comprises a body (106), two sets of collecting boxes (112) and a rotating ring (109), wherein the internal array of the rotating ring (109) is provided with multiple sets of medium boxes (116), multiple sets of steel wool (115) are fixedly provided on the medium boxes (116), and a cleaning mechanism is provided on the collecting box (112), characterized in that: The cleaning mechanism comprises: A rotating rod (202) and a plurality of groups of long electromagnet plates (205) arranged outside the rotating rod (202), wherein an inner electromagnet plate (204) is slidably provided on the inner wall of the long electromagnet plate (205), and a short electromagnet plate (203) is fixedly provided on the outer wall of the inner electromagnet plate (204); The exterior of the rotating rod (202) is respectively provided with a fixed disk (201) and a rotating retaining ring (206); the inner wall of the fixed disk (201) is respectively provided with a charged plate (213) and a non-charged plate (215); the exterior of the short electromagnet plate (203) is provided with an L-shaped conductive column, and the end of the L-shaped conductive column is provided with a contact head (214).

2. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 1, characterized in that: A plurality of sets of fixed rods are fixedly arranged between the inner wall of the long electromagnet plate (205) and the rotating rod (202), and a driving motor (200) is fixedly arranged at the end of the rotating rod (202).

3. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 1, characterized in that: An adjusting member is provided between the short electromagnetic plate (203) and the rotating rod (202), and the adjusting member comprises a mounting ring (209) sleeved on the outside of the rotating rod (202), a fixing rod 2 is fixedly provided between the mounting ring (209) and the inner electromagnetic plate (204), and a locking screw (207) is connected to the interior of the mounting ring (209) via a threaded connection.

4. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 1, characterized in that: The collecting box (112) is provided with a scraping member for scraping off magnetic flocs attached to the outer walls of the long electromagnetic plate (205), the inner electromagnetic plate (204) and the short electromagnetic plate (203), wherein the scraping member comprises: A long scraper (404) and a fixing frame (400) fixed to the collection box (112) by screws, a short scraper (402) is slidably provided on the fixing frame (400), an L-shaped scraper (403) is fixedly provided at the ends of the short scraper (402) and the long scraper (404), a sliding groove is provided inside the L-shaped scraper (403), a movable scraper (405) slides inside the sliding groove, and a mounting spring (406) is fixedly provided between the end of the movable scraper (405) and the inner wall of the sliding groove.

5. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 4, characterized in that: A stud (401) is fixedly provided on the surface of the short scraper strip (402), and a spiral ring is connected to the outside of the stud (401) via a thread.

6. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 1, characterized in that: The rotating rod (202) is also provided with a flushing member on the outside thereof for cleaning the magnetic flocs that fall on the inner walls of the long electromagnetic plate (205), the inner electromagnetic plate (204) and the short electromagnetic plate (203). The flushing member comprises: A hollow ring frame (300) is fixed on the inner wall of the collection box (112), wherein a square tube (301) is fixedly provided on the bottom surface of the hollow ring frame (300), a plurality of groups of telescopic tubes (304) are fixedly provided on the square tubes (301), nozzles (303) are fixedly provided at the ends of the telescopic tubes (304), and a water pipe is fixedly provided on the upper portion of the hollow ring frame (300).

7. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 6, characterized in that: The square tube (301) is provided with an adjusting member for adjusting the angle of the nozzle (303), the adjusting member comprising a vertical plate (302) rotatably connected via a rotating shaft, a threaded rod (307) being fixedly provided on the top of the vertical plate (302), a circular plate (306) being fixedly provided on the top of the square tube (301), and a threaded ring (305) being threadedly connected to the outside of the threaded rod (307).

8. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 1, characterized in that: An excitation coil (108) is fixedly provided inside the machine body (106), and a bottom bucket (107) is fixedly provided at the bottom of the machine body (106).

9. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 1, characterized in that: Two sets of bearing seats (110) are fixedly arranged on the machine body (106), a driving shaft (104) is rotatably arranged inside the bearing seat (110), and a supporting ring (114) is fixedly arranged outside the driving shaft (104).

10. The sweet potato vermicelli wastewater gradient magnetic field pretreatment and magnetic seed circulation device according to claim 1, characterized in that: A feeding hopper (105) and a flusher (103) are fixedly provided on the top of the machine body (106), and a plurality of punches are fixedly provided on the bottom of the flusher (103).

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