Metal processing sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses a metal processing sewage treatment device which comprises a treatment pond and a liquid inlet pipe arranged on the treatment pond, a rotating roller is rotationally arranged in the treatment pond, an adsorption belt is wound on the side face of the rotating roller, a plurality of electromagnets are arranged in the adsorption belt, and the adsorption belt corresponds to the liquid inlet pipe after being rotationally unfolded. The control end of the electromagnet extends to the outside of the side, close to the guide plate, of the adsorption belt, the electromagnet is powered off and closed when the adsorption belt is wound to drive the control end of the electromagnet to move to the guide plate, a collecting frame is arranged on the side face of the adsorption belt, and impurities on the surface of the adsorption belt enter the collecting frame after the electromagnet is powered off. A control part for driving the adsorption belt to unfold is arranged on the treatment tank, and a rotating part for winding the adsorption belt is arranged on the rotating roller; the metal processing sewage treatment device disclosed by the invention has the effect of conveniently removing metal impurities in sewage.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a metal processing sewage treatment device. Background Art

[0002] Wastewater containing metal impurities will be produced during the metal processing process. These metal impurities may come from the cutting fluid, electroplating fluid, cleaning agent and other chemical treatment agents used, or the metal itself contains metal impurities, such as metal debris attached to the surface of raw materials. Therefore, in addition to minimizing the generation of metal impurities during the processing process, when treating the wastewater generated during metal processing, the metal impurities contained in the wastewater also need to be cleaned.

[0003] The patent document with announcement number CN109622221B discloses a waste metal collection device in sewage, including a slide rail, a slider, a support rod, a first guide sleeve, a first guide rod, a cross plate, a first compression spring, a filter frame, a first mounting seat, etc. The slide rail is in a state of tilting to the right, and two slides are slidably arranged on the slide rail, a support rod is arranged on the top of the slider, and a first guide sleeve is arranged on the top of the support rod. Through the cooperation of the slide rail and the slider, the device can realize automatic collection of waste metal in sewage. Specifically, a plurality of magnetic bars are arranged in the filter frame. When sewage enters the filter frame, the metal impurities contained in the sewage are adsorbed on its surface by the magnetic bars, so as to centrally treat the metal impurities.

[0004] However, this solution still has the following problem: when the metal impurities in the sewage are adsorbed by magnetic bars, when there are many metal impurities in the sewage, as the magnetic bars adsorb more and more metal impurities, the metal impurities on the surface accumulate thicker and thicker, making it impossible for the metal impurities far away from the magnetic bars to be adsorbed, resulting in more metal impurities still existing in the sewage, which in turn affects the effect of removing metal impurities in the sewage. Summary of the invention

[0005] The present invention provides a metal processing wastewater treatment device, aiming to solve the problem in the related art that too much metal impurities adsorbed at the same place on the surface of a magnetic attraction component affect the adsorption effect.

[0006] The metal processing wastewater treatment device of the present invention comprises a treatment tank and a liquid inlet pipe arranged on the treatment tank, a roller is rotatably arranged in the treatment tank, an adsorption belt is wound on the side of the roller, a plurality of electromagnets are arranged in the adsorption belt, the adsorption belt corresponds to the liquid inlet pipe after being rotated and unfolded, a guide plate is coaxially arranged with the roller in the treatment tank, the control end of the electromagnet extends to the outside of one side of the adsorption belt close to the guide plate, the electromagnet is powered off and closed when the adsorption belt is wound and drives the control end of the electromagnet to move to the guide plate, a collecting frame is arranged on the side of the adsorption belt, and impurities on the surface of the adsorption belt enter the collecting frame after the electromagnet is powered off, a control part for driving the adsorption belt to unfold is arranged on the treatment tank, and a rotating part for winding the adsorption belt is arranged on the roller.

[0007] The adsorption belt rotates and unfolds, and the electromagnet separates from the guide plate, so that the electromagnet is powered on and turned on, and the metal impurities in the sewage are adsorbed on the surface of the adsorption belt. Then, when the adsorption belt is rolled up, the metal impurities can be collected in the collection frame. By winding the adsorption belt on the roller, the contact position between the adsorption belt and the sewage gradually changes during the unfolding process, and the metal impurities are evenly adsorbed on the surface of the adsorption belt, reducing the phenomenon of excessive adsorption of metal impurities at the same position, and improving the removal effect of metal impurities in sewage.

[0008] Preferably, the electromagnet is arranged to slide in the adsorption belt in the direction toward the guide plate, and conductive sheets are arranged in the adsorption belt corresponding to the multiple electromagnets. An elastic member is sleeved on the outside of the control end, and the elastic member is respectively connected to the inside of the adsorption belt and the control end. The elastic member is used to drive the electromagnet to move toward the outside of the adsorption belt. An inclined surface is provided at the edge of the guide plate. When the adsorption belt is wound, the control end abuts against the guide plate through the inclined surface. When the control end abuts against the guide plate, the electromagnet is separated from the conductive sheet and the power is cut off and closed. When the control end is separated from the guide plate, the electromagnet is in contact with the conductive sheet and the power is turned on and opened.

[0009] When the adsorption belt is unfolded, the elastic member drives the control end to move toward the outside of the adsorption belt, and at the same time drives the electromagnet to move to abut against the conductive sheet and energize at the same time, so that the surface of the adsorption belt has magnetic properties, so as to adsorb metal impurities in sewage.

[0010] Preferably, a scraper is provided on the side of the collection frame close to the adsorption belt, and the scraper is rotatably arranged on the collection frame. The scraper rotates on the side away from the collection frame to abut against the side of the adsorption belt. A pushing member is provided between the scraper and the collection frame, and the pushing member is used to drive the scraper to abut against the adsorption belt. When the adsorption belt is rolled up, its adsorption surface passes through the scraper.

[0011] The pushing member drives the scraper to abut against the adsorption belt. When the adsorption belt is rolled up, the scraper removes the residual metal impurities on the adsorption belt and collects the metal impurities.

[0012] Preferably, a channel is provided in the adsorption belt, an end of the adsorption belt facing away from the roller is provided with an opening connected to the channel, the roller is configured as a hollow structure, the channel is connected to the inside of the roller, the roller is filled with a treatment agent for treating sewage, and a power pump is provided at the end of the roller, the power pump is used to spray the treatment agent in the roller into the treatment tank through the channel and the opening.

[0013] The power pump sprays the treatment agent in the roller into the sewage through the channels and openings in turn, treats the sewage, and improves the treatment effect of the sewage.

[0014] Preferably, a mounting frame is provided on the processing pool, and the mounting frame is slidably arranged in a direction horizontally and perpendicular to the axis of the roller. The control member includes a driving member, a gear and a gear rod. The gear rod is connected to the processing pool. The driving member is arranged on the mounting frame, and the gear is coaxially arranged at the output end of the driving member. The gear is meshed with the gear rod. A mounting rod is provided on the mounting frame, and the mounting rod is connected to the end of the adsorption belt facing away from the roller.

[0015] The driving member drives the gear to rotate, and the rotation of the gear drives the mounting frame to move under the action of the gear rod, and the mounting frame drives the mounting rod to move, thereby unfolding the winding belt.

[0016] Preferably, the mounting rod is slidably arranged on the mounting frame along the vertical direction, an intermediate plate is arranged on the output shaft of the driving member, the intermediate plate is coaxially connected to the gear, the mounting rod and the intermediate plate are spaced apart in the center, an auxiliary rod is spaced apart on the intermediate plate at its rotating shaft, and a connecting rod is rotatably arranged between the auxiliary rod and the mounting rod.

[0017] The driving member drives the middle plate to rotate while driving the installation rod to move. The rotation of the middle plate is rotated through the eccentrically arranged auxiliary rod. The auxiliary rod drives the installation rod to move back and forth through the connecting rod, thereby driving the opening to move back and forth in the vertical direction so as to evenly spray the treatment agent into the sewage.

[0018] Preferably, a drain pipe is provided at the bottom of the processing tank, the drain pipe is provided on the side of the processing tank away from the roller, an inclined portion is provided on the bottom wall of the processing tank, the bottom of the inclined portion is provided close to the drain pipe, and the inclined portion is provided between the roller and the drain pipe.

[0019] The inclined portion is provided so that the sewage in the treatment tank can be discharged through the drainage pipe.

[0020] Preferably, the mounting rod comprises a sleeve rod and an inner rod, the sleeve rod is connected to the mounting frame, the inner rod slides in the sleeve rod in a vertical direction, the end of the inner rod extends to the outside of the sleeve rod and is connected to the adsorption belt, and an adjusting member is provided on the treatment pool, which is used to control the inner rod to slide toward the inclined portion when the adsorption belt is unfolded.

[0021] When the mounting member moves to drive the adsorption belt to unfold, the adjusting member drives the end of the adsorption belt to move toward the inclined portion, thereby increasing the contact area between the adsorption belt and the sewage and improving the sewage treatment effect.

[0022] Preferably, a sealing plate is provided at one end of the inner rod close to the sleeve rod, and the sealing plate is slidably arranged inside the sleeve rod. The sealing plate divides the interior of the sleeve rod into cavity one and cavity two. The adjusting member includes two groups of airbags and connecting tubes. The airbags are respectively arranged on both sides of the mounting frame. When the mounting frame moves toward the airbags, the airbags are compressed. One end of the two connecting tubes is connected to the airbags, and the other end is connected to cavity one and cavity two respectively.

[0023] When the mounting frame moves, one of the airbags is compressed, and the gas in the airbag is compressed into cavity one through the connecting tube, driving the inner rod to move through the sealing plate, and then driving the end of the adsorption belt to move toward the inclined portion.

[0024] Preferably, the rotating member is arranged at one end of the roller away from the guide plate, and the rotating member is respectively connected to the roller and the inner wall of the treatment tank, and the rotating member is used to drive the roller to rotate and reel up the adsorption belt.

[0025] When the suction belt is rolled up, the driving member drives the mounting frame to move in the opposite direction, and at the same time the rotating member drives the roller to rotate to roll up the suction belt.

[0026] Beneficial effect: The adsorption belt of the present invention adsorbs metal impurities through the electromagnet inside it. At the same time, the adsorption belt gradually unfolds during the adsorption process, so that its surface is fully in contact with the sewage, reducing the phenomenon of metal impurities being concentrated in the same place of the adsorption belt, thereby ensuring the adsorption effect of the adsorption belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a partial exploded schematic diagram of the adsorption belt and the guide plate in the present invention.

[0029] Figure 3 It is a partial exploded schematic diagram of the guide plate and the control end in the present invention.

[0030] Figure 4 It is a schematic diagram of the coordination relationship between the collection frame and the adsorption belt in the present invention.

[0031] Figure 5 It is a structural schematic diagram of the channel in the present invention.

[0032] Figure 6 It is a structural schematic diagram of the control component in the present invention.

[0033] Figure 7 It is a partial exploded schematic diagram of the gear and the middle plate in the present invention.

[0034] Figure 8 It is a structural schematic diagram of the mounting rod in the present invention.

[0035] Reference numerals: 1. Treatment tank; 11. Liquid inlet pipe; 12. Liquid discharge pipe; 13. Mounting frame; 14. Inclined portion; 2. Roller; 21. Rotating member; 3. Adsorption belt; 31. Channel; 32. Opening; 4. Electromagnet; 41. Control end; 42. Elastic member; 43. Electromagnetic rod; 5. Guide plate; 51. Inclined surface; 6. Collecting frame; 61. Scraper; 62. Pushing member; 7. Control member; 71. Driving member; 711. Middle plate; 712. Auxiliary rod; 713. Connecting rod; 72. Gear; 73. Gear rod; 74. Mounting rod; 741. Sleeve rod; 742. Inner rod; 743. Sealing plate; 744. Cavity 1; 745. Cavity 2; 8. Conductive sheet; 9. Adjusting member; 91. Airbag; 92. Connecting pipe. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0037] like Figures 1 to 8 As shown, the metal processing wastewater treatment device of the present invention comprises a treatment pool 1, an adsorption belt 3 and an electromagnet 4. A liquid inlet pipe 11 and a liquid discharge pipe 12 are arranged on the treatment pool 1. The liquid inlet pipe 11 is arranged at the top of the treatment pool 1, and the liquid discharge pipe 12 is arranged at the bottom of the treatment pool 1. The adsorption belt 3 is arranged in the treatment pool 1, and the electromagnet 4 is arranged in the adsorption belt 3. The wastewater after metal processing enters the treatment pool 1 through the liquid inlet pipe 11, and the electromagnet 4 is energized to generate magnetism, so that the metal impurities in the wastewater are adsorbed on the surface of the adsorption belt 3, thereby cleaning the metal impurities in the wastewater.

[0038] Reference Figure 1 and Figure 2 A roller 2 is rotatably arranged in the treatment tank 1, one end of the adsorption belt 3 is connected to the roller 2, and the adsorption belt 3 is wound around the roller 2. The adsorption belt 3 is made of a flexible plastic belt so that the adsorption belt 3 can be wound around the roller 2. A plurality of electromagnets 4 are arranged in the adsorption belt 3 along the length direction of the adsorption belt 3. After the adsorption belt 3 is unfolded, the metal impurities are uniformly adsorbed on the surface of the adsorption belt 3. After the adsorption belt 3 is unfolded, the adsorption belt 3 corresponds to the liquid inlet pipe 11, so that the sewage contacts the adsorption belt 3 after passing into the treatment tank 1, and the metal impurities in the sewage are removed through the adsorption belt 3. At the same time, as the adsorption belt 3 is unfolded, the position where the adsorption belt 3 contacts the sewage changes accordingly, so as to prevent the accumulation of too many metal impurities at one position and ensure the adsorption effect of the metal impurities in the sewage.

[0039] Reference Figure 1 and Figure 4In order to facilitate the cleaning of metal impurities on the adsorption belt 3, a collection frame 6 is provided in the treatment tank 1. The collection frame 6 is provided on one side of the roller 2, and the roller 2 will pass through the collection frame 6 when the adsorption belt 3 is rotated and rolled up. A guide plate 5 is also provided in the treatment tank 1. The guide plate 5 is coaxially arranged with the roller 2. The control end 41 for controlling the switch of the electromagnet 4 extends to the outside of the adsorption belt 3, and the control end 41 is arranged close to the guide plate 5. When the adsorption belt 3 is rolled up, the control end 41 is driven to move to the guide plate 5. At this time, the electromagnet 4 is powered off and closed, and the adsorption of metal impurities on the surface of the adsorption belt 3 is released, so that the metal impurities fall into the collection frame 6, so that the metal impurities can be cleaned up in a centralized manner.

[0040] Reference Figure 2 and Figure 3 The electromagnet 4 is arranged to slide in the adsorption belt 3 in the direction toward the guide plate 5, that is, the electromagnet 4 drives its control end 41 to move synchronously when sliding. An elastic member 42 is arranged outside the control end 41. The elastic member 42 can be set as a spring. One end of the spring is connected to the adsorption belt 3, and the other end is connected to the control end 41. The elastic member 42 is used to drive the electromagnet 4 to move toward the outside of the adsorption belt 3. An inclined surface 51 is provided at the edge of the guide plate 5. When the adsorption belt 3 is rolled up, the control end 41 abuts against the guide plate 5 through the inclined surface 51, and the control end 41 pushes the electromagnet 4 toward the inside of the adsorption belt 3. A conductive sheet 8 is arranged in the adsorption belt 3. The conductive sheet 8 corresponds to a plurality of electromagnets 4. The conductive sheet 8 is made of a flexible material, that is, the conductive sheet 8 can be rolled up or unfolded with the adsorption belt 3. When the electromagnet 4 contacts the conductive sheet 8, it is powered on and opened, and when the two are separated, the electromagnet 4 is powered off and closed. When the control end 41 is in contact with the guide plate 5, the electromagnet 4 is in a closed state. When the control end 41 is separated from the guide plate 5, the elastic member 42 drives the electromagnet 4 to move toward the outside of the adsorption belt 3, so that the electromagnet 4 contacts the conductive sheet 8 and is energized, and the electromagnet 4 is turned on. Then, the switch of the electromagnet 4 is controlled by the guide plate 5, so as to adsorb and collect the metal impurities.

[0041] Reference Figure 4 A scraper 61 is provided on the collection frame 6. The scraper 61 is provided close to the adsorption belt 3. The side of the scraper 61 facing away from the collection frame 6 abuts against the side of the adsorption belt 3. The scraper 61 is rotatably provided on the collection frame 6. A pusher 62 is provided between the scraper 61 and the collection frame 6. The pusher 62 is used to drive the scraper 61 to rotate in the direction toward the adsorption belt 3 so that the scraper 61 and the adsorption belt 3 maintain an abutting state. In this embodiment, the pusher 62 is provided as an air spring. When the adsorption belt 3 is rolled up, after the electromagnet 4 is powered off, the metal impurities on the surface of the adsorption belt 3 fall into the collection frame 6. At the same time, the adsorption belt 3 is rolled up and passes through the scraper 61. The scraper 61 scrapes off the residual metal impurities on the adsorption belt 3 and collects them into the collection frame 6, thereby improving the collection effect of the metal impurities.

[0042] Reference Figure 2 In order to facilitate the unfolding and retracting of the adsorption belt 3, a control member 7 is provided on the treatment tank 1, and a rotating member 21 is provided at the end of the roller 2 away from the guide plate 5. The rotating member 21 can be set as a torsion spring, one end of which is connected to the roller 2, and the other end is connected to the inner wall of the treatment tank 1. The rotating member 21 is used to drive the roller 2 to rotate to reel up the adsorption belt 3. The control member 7 is connected to the end of the adsorption belt 3 away from the roller 2, and the control member 7 is used to drive the adsorption belt 3 to unfold.

[0043] Reference Figure 1 and Figure 6 , a mounting frame 13 is arranged on the treatment pool 1, the mounting frame 13 is arranged in the horizontal direction, and the mounting frame 13 is arranged to slide perpendicular to the axis direction of the roller 2. The control member 7 includes a driving member 71, a gear 72 and a gear rod 73, the driving member 71 is arranged on the mounting frame 13, the gear rod 73 is arranged on the treatment pool 1, the gear rod 73 is arranged along the length direction of the mounting frame 13, the gear 72 is coaxially arranged at the output end of the driving member 71, the gear 72 and the gear rod 73 are meshed, and the driving member 71 can be set as a motor. The driving member 71 drives the gear 72 to rotate, and the gear 72 rotates to drive the mounting frame 13 to move. A mounting rod 74 is arranged on the mounting frame 13, and the mounting rod 74 is connected to the end of the adsorption belt 3 away from the roller 2. When the mounting frame 13 moves, the adsorption belt 3 is pulled to unfold by the mounting rod 74. When it needs to be retracted, the driving member 71 drives the mounting frame 13 to move in the opposite direction, and the adsorption belt 3 is retracted under the action of the rotating member 21.

[0044] Reference Figure 2 and Figure 5 A channel 31 is provided in the adsorption belt 3, and the channel 31 is arranged along the length direction of the adsorption belt 3. An opening 32 connected to the channel 31 is provided at the end of the adsorption belt 3 away from the roller 2. The roller 2 is arranged as a hollow structure, and the end of the channel 31 away from the opening 32 is connected to the inside of the roller 2. The roller 2 is filled with a treatment agent, and the treatment agent is used to treat the sewage. In this embodiment, the treatment agent is a flocculant. A power pump is provided at the end of the roller 2, and the power pump is used to spray the flocculant inside the roller 2 into the sewage through the channel 31 and the opening 32 in sequence to assist in treating the sewage.

[0045] Reference Figure 3 and Figure 5In this embodiment, the channel 31 is arranged near the middle of the adsorption belt 3. In order to reduce the phenomenon that the channel 31 interferes with the electromagnet 4, the electromagnet 4 is arranged in multiple groups in this embodiment, each group of electromagnets 4 is connected to a control end 41, and every two electromagnets 4 are arranged as a group. An electromagnetic rod 43 is arranged between every two electromagnets 4, and the conductive sheet 8 is arranged between the two electromagnets 4. The channel 31 is also arranged between the two electromagnets 4, and the conductive sheet 8 is arranged on one side of the channel 31 and is arranged at intervals from the channel 31. The electromagnetic rod 43 penetrates the channel 31 to connect the two electromagnets 4 to reduce the influence of the channel 31 on the electromagnet 4. In other embodiments, the cross section of the channel 31 can also be thickened or reduced, and the electromagnetic rod 43 passes through one side of the channel 31 to connect the two electromagnets 4 to avoid direct contact between the electromagnetic rod 43 and the channel 31, thereby improving the stability of the electromagnet 4 during operation.

[0046] Reference Figure 6 and Figure 7 In order to fully spray the treatment agent into the sewage, an intermediate plate 711 is provided on the output shaft of the driving member 71. The intermediate plate 711 is coaxially arranged with the gear 72. The mounting rod 74 is spaced apart from the center of the intermediate plate 711. The mounting rod 74 moves in the vertical direction on the mounting frame 13. An auxiliary rod 712 is provided on the intermediate plate 711. The auxiliary rod 712 is spaced apart from the rotation axis of the intermediate plate 711. A connecting rod 713 is provided between the auxiliary rod 712 and the mounting rod 74. The connecting rod 713 rotates with the auxiliary rod 712 and the mounting rod 74 respectively. While pulling the adsorption belt 3 to unfold, the driving member 71 drives the mounting rod 74 to reciprocate in the vertical direction through the intermediate plate 711 and the connecting rod 713, thereby driving the end of the adsorption belt 3 with the opening 32 to swing back and forth, so as to more fully spray the treatment agent into the sewage and improve the treatment effect of the sewage. In addition, the adsorption belt 3 is arranged to swing back and forth when unfolding and retracting, and to stop releasing water when retracting. The adsorption belt 3 swings to throw out the water remaining on the metal impurities, so as to collect the metal impurities.

[0047] Reference Figure 1 and Figure 8The drain pipe 12 is arranged on the side of the treatment tank 1 away from the roller 2. An inclined portion 14 is arranged at the bottom of the treatment tank 1. The bottom of the inclined portion 14 is arranged close to the drain pipe 12. The sewage can be discharged through the inclined portion 14. In addition, a mounting rod 74 is arranged, including a sleeve rod 741 and an inner rod 742. The sleeve rod 741 is connected to the mounting frame 13. The inner rod 742 slides in the sleeve rod 741 along the vertical direction. The end of the inner rod 742 extends to the outside of the sleeve rod 741. The end of the inner rod 742 away from the sleeve rod 741 is connected to the adsorption belt 3. An adjusting member 9 is arranged on the treatment tank 1. The adjusting member 9 is used to adjust the position of the inner rod 742, so that when the adsorption belt 3 is unfolded and swung, the inner rod 742 moves toward the inclined portion 14, driving the end of the adsorption belt 3 to move toward the inclined portion 14, so that the adsorption belt 3 is in an inclined state, so that the adsorption belt 3 is fully in contact with the sewage to process the metal impurities therein.

[0048] Reference Figure 7 and Figure 8 A sealing plate 743 is provided at one end of the inner rod 742 close to the sleeve rod 741. The sealing plate 743 separates the interior of the sleeve rod 741 into a cavity 1 744 and a cavity 2 745. In this embodiment, the cavity 1 744 is provided on the side of the sealing plate 743 away from the ground. The adjusting member 9 includes an airbag 91 and a connecting tube 92. The airbag 91 and the connecting tube 92 are provided in two groups, and the two groups of airbags 91 and the connecting tube 92 are arranged at intervals along the moving direction of the mounting frame 13, that is, the two airbags 91 are respectively provided on both sides of the mounting frame 13, one end of the two connecting tubes 92 is connected to the airbag 91, and the other end is connected to the cavity 1 744 and the cavity 2 745 respectively. The airbag 91 is made of elastic material. When the mounting frame 13 moves to drive the adsorption belt 3 to unfold, the corresponding airbag 91 is pressed, and the gas in the airbag 91 enters the cavity 1 744 through the connecting tube 92, and drives the inner rod 742 to move through the sealing plate 743, thereby driving the end of the adsorption belt 3 to move toward the inclined portion 14. When moving in the reverse direction, the gas is compressed into the cavity 2 745 through the other airbag 91, driving the inner rod 742 to move to the initial position. By providing two airbags 91, the inner rod 742 can reciprocate to adjust the position of the adsorption belt 3. At the same time, when one of the airbags 91 is compressed, the other airbag 91 is inflated, and the two are repeated in this way to stably adjust the position of the inner rod 742.

[0049] The implementation principle of the present invention is as follows: when the adsorption belt 3 is unfolded, the corresponding electromagnet 4 is energized to adsorb metal impurities in the sewage on the surface of the adsorption belt 3. At the same time, as the adsorption belt 3 is unfolded, the position in contact with the sewage continues to change, so that the metal impurities are evenly adsorbed on the surface of the adsorption belt 3, reducing the phenomenon of metal impurities being concentrated in the same position of the adsorption belt 3, ensuring the adsorption effect, and improving the effect of removing metal impurities.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A metal processing wastewater treatment device, comprising a treatment tank (1) and a liquid inlet pipe (11) arranged on the treatment tank (1), characterized in that: A roller (2) is rotatably arranged in a treatment pool (1), a suction belt (3) is wound around the side of the roller (2), a plurality of electromagnets (4) are arranged in the suction belt (3), and the suction belt (3) corresponds to a liquid inlet pipe (11) after being rotated and unfolded. A guide plate (5) is coaxially arranged with the roller (2) in the treatment pool (1), a control end (41) of the electromagnet (4) extends to the outside of a side of the suction belt (3) close to the guide plate (5), and when the suction belt (3) is wound and drives the control end (41) of the electromagnet (4) to move to the guide plate (5), the electromagnet (4) is powered off and closed, a collecting frame (6) is arranged on the side of the suction belt (3), and impurities on the surface of the suction belt (3) enter the collecting frame (6) after the electromagnet (4) is powered off, a control member (7) for driving the suction belt (3) to unfold is arranged on the treatment pool (1), and a rotating member (21) for winding the suction belt (3) is arranged on the roller (2).

2. The metal processing wastewater treatment device according to claim 1, characterized in that: The electromagnet (4) is arranged to slide in the adsorption belt (3) in a direction toward the guide plate (5). Conductive sheets (8) are arranged in the adsorption belt (3) corresponding to the plurality of electromagnets (4). An elastic member (42) is sleeved on the outside of the control end (41). The elastic member (42) is connected to the inside of the adsorption belt (3) and the control end (41) respectively. The elastic member (42) is used to drive the electromagnet (4) to move toward the outside of the adsorption belt (3). An inclined surface (51) is provided at the edge of the guide plate (5). When the adsorption belt (3) is rolled up, the control end (41) passes through the inclined surface (51) and abuts against the guide plate (5). When the control end (41) abuts against the guide plate (5), the electromagnet (4) and the conductive sheet (8) are separated and powered off. When the control end (41) and the guide plate (5) are separated, the electromagnet (4) and the conductive sheet (8) are in contact and powered on.

3. The metal processing wastewater treatment device according to claim 1, characterized in that: A scraper (61) is provided on one side of the collection frame (6) close to the adsorption belt (3). The scraper (61) is rotatably provided on the collection frame (6). The side of the scraper (61) facing away from the collection frame (6) is rotated to abut against the side surface of the adsorption belt (3). A pushing member (62) is provided between the scraper (61) and the collection frame (6). The pushing member (62) is used to drive the scraper (61) to abut against the adsorption belt (3). When the adsorption belt (3) is rolled up, its adsorption surface passes through the scraper (61).

4. The metal processing wastewater treatment device according to claim 1, characterized in that: A channel (31) is provided in the adsorption belt (3); an end of the adsorption belt (3) facing away from the roller (2) is provided with an opening (32) connected to the channel (31); the roller (2) is configured as a hollow structure; the channel (31) is connected to the inside of the roller (2); the roller (2) is filled with a treatment agent for treating sewage; a power pump is provided at the end of the roller (2); the power pump is used to spray the treatment agent in the roller (2) into the treatment pool (1) through the channel (31) and the opening (32).

5. The metal processing wastewater treatment device according to claim 4, characterized in that: A mounting frame (13) is arranged on the treatment pool (1), and the mounting frame (13) is slidably arranged in a direction horizontally and perpendicular to the axis of the roller (2). The control member (7) comprises a driving member (71), a gear (72) and a toothed rod (73). The toothed rod (73) is connected to the treatment pool (1). The driving member (71) is arranged on the mounting frame (13), and the gear (72) is coaxially arranged at the output end of the driving member (71). The gear (72) meshes with the toothed rod (73). A mounting rod (74) is arranged on the mounting frame (13), and the mounting rod (74) is connected to an end of the adsorption belt (3) that is away from the roller (2).

6. The metal processing wastewater treatment device according to claim 5, characterized in that: The mounting rod (74) is slidably arranged on the mounting frame (13) in a vertical direction. An intermediate plate (711) is arranged on the output shaft of the driving member (71). The intermediate plate (711) is coaxially connected to the gear (72). The mounting rod (74) and the intermediate plate (711) are spaced apart at their centers. An auxiliary rod (712) is spaced apart from the intermediate plate (711) at its rotation axis. A connecting rod (713) is rotatably arranged between the auxiliary rod (712) and the mounting rod (74).

7. The metal processing wastewater treatment device according to claim 6, characterized in that: A drainage pipe (12) is arranged at the bottom of the treatment tank (1), and the drainage pipe (12) is arranged on a side of the treatment tank (1) away from the rotating roller (2). An inclined portion (14) is arranged on the bottom wall of the treatment tank (1), and the bottom of the inclined portion (14) is arranged close to the drainage pipe (12). The inclined portion (14) is arranged between the rotating roller (2) and the drainage pipe (12).

8. The metal processing wastewater treatment device according to claim 7, characterized in that: The mounting rod (74) comprises a sleeve rod (741) and an inner rod (742); the sleeve rod (741) is connected to the mounting frame (13); the inner rod (742) slides in the sleeve rod (741) in a vertical direction; the end of the inner rod (742) extends to the outside of the sleeve rod (741) to be connected to the adsorption belt (3); an adjusting member (9) is provided on the treatment pool (1); the adjusting member (9) is used to control the inner rod (742) to slide towards the inclined portion (14) when the adsorption belt (3) is unfolded.

9. The metal processing wastewater treatment device according to claim 1, characterized in that: A sealing plate (743) is provided at one end of the inner rod (742) close to the sleeve rod (741). The sealing plate (743) is slidably arranged in the sleeve rod (741). The sealing plate (743) divides the interior of the sleeve rod (741) into a first cavity (744) and a second cavity (745). The adjusting member (9) comprises two groups of air bags (91) and connecting tubes (92). The air bags (91) are respectively arranged on both sides of the mounting frame (13). When the mounting frame (13) moves toward the air bags (91), the air bags (91) are compressed. One end of each of the two connecting tubes (92) is connected to the air bags (91), and the other end is connected to the first cavity (744) and the second cavity (745).

10. The metal processing wastewater treatment device according to claim 1, characterized in that: The rotating member (21) is arranged at one end of the rotating roller (2) away from the guide plate (5), and the rotating member (21) is respectively connected to the rotating roller (2) and the inner wall of the treatment tank (1), and the rotating member (21) is used to drive the rotating roller (2) to rotate and reel in the adsorption belt (3).

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