Laboratory waste liquid treatment device

Abstract

The invention relates to the technical field of waste liquid treatment, and particularly discloses a laboratory waste liquid treatment device which comprises a support, a cylinder is arranged on the support, and a cleaning assembly and a driving assembly are arranged on the cylinder; the cylinder comprises an annular cylinder rotationally matched with the support and middle plates rotationally matched with the two ends of the annular cylinder respectively, and the middle plates and the annular cylinder define a cavity for containing waste liquid; the cleaning assembly comprises a magnetic ring arranged outside the annular cylinder in a sleeving mode, a collecting frame located in the annular cylinder and connected with the middle plate, and a scraping plate located between the collecting frame and the annular cylinder, and the upper end of the scraping plate inclines in the clockwise direction and abuts against the inner wall of the annular cylinder. An opening is formed in the top of the magnetic ring and corresponds to the collecting frame. The driving assembly is connected with the annular cylinder to drive the annular cylinder to rotate around the middle plate; the laboratory waste liquid treatment device has the effect of improving the waste liquid treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of waste liquid treatment, and particularly relates to a laboratory waste liquid treatment device. Background Art

[0002] Laboratory waste liquid may contain heavy metal ions or metal particles such as mercury, lead, cadmium, chromium, silver, etc. When treating metal particles, ferromagnetic metal particles in the waste liquid can be removed by using a magnet. For example, waste liquid containing iron powder can be quickly separated by a magnet. In addition, a flocculant also needs to be added to aggregate tiny suspended particles or colloidal substances into large particle precipitates for subsequent filtration or separation.

[0003] A patent document with the publication number of CN118545807B discloses a sewage treatment device for dyed straw and willow products, including a housing and a dosing cylinder shaft rotatably arranged on the top of the housing. A plurality of electrostatic adsorption components connected to an external electrostatic generator are arranged in an annular array on the outer edge surface of the dosing cylinder shaft. One group of the electrostatic adsorption components forms a disc-shaped structure, and a plurality of groups of the electrostatic adsorption components are all connected to the dosing cylinder shaft.

[0004] In the above-mentioned prior art, an external electrostatic generator is used to apply static electricity to a plurality of groups of electrostatic adsorption components, thereby generating an electrostatic adsorption phenomenon. Impurities, suspended substances, and heavy metal ions in the sewage are adsorbed on the surfaces of the plurality of groups of electrostatic adsorption components. The rotational gap between multiple partitions is used to narrow the gap between the sewage and one group of electrostatic adsorption components, and thus a stirring mechanism is used to stir the sewage to realize the circulating flow of the sewage between multiple rotational gaps. Then, a scraping and feeding component is used to scrape the impurities attached to the electrostatic adsorption components into multiple partitions to complete the cleaning of the sewage. However, the following problems still exist in this solution. When adsorbing impurities, for some relatively large metal impurity particles, they will precipitate to the bottom of the housing, making it inconvenient to clean the precipitated impurities in this part. In addition, when the sewage needs to be flocculated, the stirring mechanism in it stirs the sewage, which will disperse the flocculated impurities, affecting the flocculation effect and subsequent separation operations, and reducing the sewage treatment effect. Summary of the Invention

[0005] The present invention provides a laboratory waste liquid treatment device, aiming to solve the problems in the related art that it is inconvenient to clean large particle metal particles precipitated at the bottom of the housing and the stirring mechanism is likely to disperse the flocculated impurities when stirring the sewage, affecting the sewage treatment effect.

[0006] The laboratory waste liquid treatment device of the present invention includes a bracket, a cylinder body is arranged on the bracket, and a cleaning component and a driving component are arranged on the cylinder body; The cylinder body includes: an annular cylinder rotatably fitted with a bracket, and intermediate plates rotatably fitted with both ends of the annular cylinder respectively. The intermediate plates and the annular cylinder enclose a cavity for placing waste liquid. The cleaning assembly includes: a magnetic ring sleeved outside the annular cylinder, a collection frame located inside the annular cylinder and connected to the intermediate plate, and a scraping plate located between the collection frame and the annular cylinder. The upper end of the scraping plate is inclined clockwise and abuts against the inner wall of the annular cylinder. An opening is provided at the top of the magnetic ring, and the collection frame corresponds to the opening. The driving assembly is connected to the annular cylinder to drive the annular cylinder to rotate around the intermediate plate. The magnetic ring adsorbs the metal impurities at the bottom of the annular cylinder so that they adhere to the inner wall of the annular cylinder. The annular cylinder rotates counterclockwise around the intermediate plate, driving the impurities to separate from the waste liquid. After the impurities move above the collection frame and out of the adsorption range of the magnetic ring, they fall into the collection frame. Subsequently, the scraping plate scrapes off the remaining impurities on the annular cylinder and guides them into the collection frame.

[0007] Add the waste liquid into the cavity for treatment. When it is necessary to treat the precipitated metal impurity particles, the driving assembly drives the annular cylinder to rotate counterclockwise around the intermediate plate, and the intermediate plate remains stationary. The magnetic ring adsorbs the metal impurities at the bottom of the annular cylinder, making the metal impurities adhere to the annular cylinder and capable of rotating with the annular cylinder. As the annular cylinder rotates, it drives the metal impurities to separate from the waste liquid and rotate towards the collection frame. After the metal impurities move above the collection frame, that is, at the opening of the magnetic ring, they fall out of the adsorption range of the magnetic ring and fall into the collection frame. As the annular cylinder continues to rotate, in cooperation with the scraping plate, the remaining impurities are scraped off and collected through the collection frame. During the collection process, the annular cylinder rotates to remove the impurities at its bottom, and at the same time, the disturbance to the flocculants is small, so as to facilitate subsequent separation treatment, etc., improving the treatment effect of the waste liquid.

[0008] Preferably, the scraping plate is rotatably connected to the collection frame, and a torsion spring is installed at the connection to make the upper end of the scraping plate closely adhere to the inner wall of the annular cylinder. A connecting rod coaxial with the rotating shaft of the scraping plate is provided on the collection frame. The connecting rod passes through the intermediate plate and extends to the outside of the cavity. A stop rod is provided on the side of the connecting rod. An extension part is provided on the annular cylinder, and the extension part is sleeved outside the stop rod. A plurality of dial rods are circumferentially arranged on the extension part. When the dial rods rotate and cooperate with the stop rod, they drive the collection frame to swing. A drain hole is provided on the side of the collection frame away from the scraping plate.

[0009] The extension part rotates with the annular cylinder, driving the plurality of dial rods to cooperate with the stop rod in sequence, driving the collection frame to swing back and forth to drain the water contained in the impurities through the drain hole.

[0010] Preferably, a relief groove is provided on the side of the intermediate plate. The side of the stop rod extends into the relief groove. A plurality of protrusions are provided in the relief groove. When the dial rod drives the stop rod to rotate, the stop rod passes through the plurality of protrusions in sequence to drive the collection frame to vibrate. After the dial rod separates from the stop rod, the stop rod rotates to abut against the inner wall of the relief groove.

[0011] When the shift lever rotates and passes over the protrusion, the placement frame vibrates to drain the water in the impurities.

[0012] Preferably, a push plate is slidably assembled in the collection frame. One end of the push plate facing away from the collection frame abuts against the inner side of the scraper. A first elastic member connected to the collection frame is provided on the push plate. The first elastic member drives the push plate to move towards the direction of the scraper shaft, and the upper end of the push plate slidably abuts against the inner side of the scraper.

[0013] When the collection frame rotates towards the scraper, the distance between the collection frame and the scraper decreases. The push plate moves under the action of the scraper, and at the same time, the impurities adhered to the scraper are scraped off to clean the scraper.

[0014] Preferably, a waste discharging assembly is arranged in the annular cylinder. An outlet one is opened below the collection frame. A control assembly for controlling the closing of the outlet one is arranged on the collection frame. The waste discharging assembly includes: a waste discharging pipe, a guiding frame, a spiral blade, and a power member. The waste discharging pipe is coaxially rotatably arranged in the annular cylinder. The waste discharging pipe is fixedly connected to the bracket. The guiding frame is arranged vertically. The lower end of the guiding frame is communicated with the inside of the waste discharging pipe, and the upper end is located below the outlet one. An outlet two is opened on the side surface of the waste discharging pipe. The outlet two is located outside the annular cylinder. The spiral blade is rotatably assembled in the waste discharging pipe. The power member is arranged on the waste discharging pipe, and the output end of the power member is connected to the spiral blade.

[0015] The control assembly opens the outlet one. The impurities in the collection frame enter the waste discharging pipe through the guiding frame. Then the power member drives the spiral blade to rotate, and the impurities in the waste discharging pipe are discharged through the outlet two.

[0016] Preferably, the control assembly includes a sliding plate, a push rod, and a second elastic member. The sliding plate is slidably assembled at the bottom of the collection frame to control the closing of the outlet one. The push rod is arranged in the collection frame and connected to the sliding plate. The second elastic member connects the sliding plate and the collection frame. The second elastic member is used to drive the sliding plate to move towards the push plate and close the outlet one. A control rod is arranged on the extension part. The length of the control rod is greater than the length of the dial rod. When the control rod cooperates with the shift lever, it drives the push plate to cooperate with the push rod and drives the push rod to move. The movement of the push rod drives the sliding plate to move and open the outlet one.

[0017] When the control rod cooperates with the shift lever, the rotation angle of the placement frame increases. The push plate moves to abut against the push rod. The push rod drives the sliding plate to move through the push rod, thereby controlling the opening of the outlet one. After the push plate separates from the push rod, the second elastic member drives the sliding plate to move to the initial position and closes the outlet one again.

[0018] Preferably, an installation part is arranged on one side of the collection frame facing away from the scraper. The drain hole is opened on the installation part. A placement cavity for placing the liquid medicine for treating the waste liquid is opened in the installation part. An outlet three communicated with the placement cavity is opened on the installation part.

[0019] When the placement frame swings, it drives the placement cavity to swing, so as to spill the liquid medicine in the placement cavity and treat the waste liquid.

[0020] Preferably, a cover plate is provided on the extension part. The driving assembly includes a driving member, a first gear, and a second gear. The driving member is arranged on the bracket, the first gear is arranged at the output end of the driving member, the second gear meshes with the first gear, and the second gear is coaxially and fixedly connected to the cover plate. The driving member drives the annular cylinder to rotate through the first gear and the second gear.

[0021] The driving member drives the cover plate to rotate through the first gear and the second gear, and the rotation of the cover plate drives the annular cylinder to rotate synchronously.

[0022] Preferably, the driving assembly further includes two sets of transmission members I and II with the same structure. The transmission members I and II are respectively arranged at the middle plates at both ends of the annular cylinder. The transmission member I includes: a transmission plate, a ratchet wheel, and a ratchet pawl. The ratchet wheel is coaxially and fixedly connected to the middle plate, the ratchet pawl is rotatably connected to the transmission plate, and the ratchet pawl cooperates with the ratchet wheel. The cooperation directions of the ratchet pawls in the transmission members I and II with the ratchet wheel are the same. The transmission plate in the transmission member I is fixedly connected to the cover plate, and the transmission plate in the transmission member II is fixedly connected to the impurity discharge pipe.

[0023] When the annular cylinder rotates counterclockwise, the ratchet pawl in the transmission member I rotates around the ratchet wheel, and the ratchet pawl in the transmission member II engages with the ratchet wheel to fix the middle plate and prevent the middle plate from rotating with the annular cylinder. When the annular cylinder rotates clockwise, the ratchet pawl in the transmission member I engages with the ratchet wheel, and the ratchet pawl in the transmission member II rotates relative to the ratchet wheel. At this time, the middle plate rotates synchronously with the annular cylinder.

[0024] Preferably, a first discharge port is opened at the bottom of the magnetic ring, and a second discharge port is arranged on the side surface of the annular cylinder. When the second discharge port rotates to directly below the annular cylinder, it corresponds to the first discharge port. An electromagnetic valve for controlling the closing of the second discharge port is arranged in the second discharge port.

[0025] When it is necessary to discharge the waste liquid, the annular cylinder drives the second discharge port to rotate to directly below the annular cylinder. At this time, the second discharge port corresponds to the first discharge port. Open the second discharge port, and the waste liquid can be discharged through the second discharge port and the first discharge port.

[0026] Beneficial effects: In the present invention, the annular cylinder rotates in cooperation with the magnetic ring to clean the metal impurity particles at the bottom of the waste liquid. At the same time, the rotation of the annular cylinder during the process disturbs the waste liquid less, avoiding affecting the flocculation effect, so as to facilitate subsequent treatment and improve the treatment effect of the waste liquid. Brief description of the drawings

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

[0028] Figure 2 It is the partial explosion schematic diagram of the cylinder body and the magnetic ring in the embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of the internal structure of the cylinder body in the embodiment of the present invention.

[0030] Figure 4 It is a schematic diagram of the positional relationship between the annular cylinder and the magnetic ring in the embodiment of the present invention.

[0031] Figure 5 is Figure 4 a schematic diagram of the structure at position A in

[0032] Figure 6 It is a schematic diagram of the structure of the connecting rod in the embodiment of the present invention.

[0033] Figure 7 It is a schematic diagram of the structure of the control rod in the embodiment of the present invention.

[0034] Figure 8 It is a sectional view of the cylinder body in the embodiment of the present invention.

[0035] Figure 9 It is a partial exploded schematic diagram of the transmission plate and the ratchet pawl in the embodiment of the present invention.

[0036] Figure 10 It is a partial exploded schematic diagram of the two intermediate plates in the embodiment of the present invention.

[0037] Figure 11 It is a connection schematic diagram of the ratchet wheel and the intermediate plate in the embodiment of the present invention.

[0038] Reference numerals: 01, treatment tank; 1, bracket; 2, cylinder body; 21, annular cylinder; 211, extension part; 212, dial rod; 213, control rod; 214, cover plate; 215, second discharge port; 22, intermediate plate; 221, cavity; 222, relief groove; 3, cleaning assembly; 31, magnetic ring; 311, opening; 312, first discharge port; 32, collection box; 321, first outlet; 322, drain hole; 323, installation part; 324, placement cavity; 325, third outlet; 33, scraper; 4, drive assembly; 41, drive member; 42, first gear; 43, second gear; 44, first transmission member; 441, transmission plate; 442, ratchet wheel; 443, ratchet pawl; 45, second transmission member; 5, connecting rod; 51, stop rod; 6, push plate; 61, first elastic member; 7, impurity discharge assembly; 71, impurity discharge pipe; 711, second outlet; 72, guiding frame; 73, spiral blade; 74, power member; 8, control assembly; 81, sliding plate; 82, push rod; 83, second elastic member; 9, feeding pipe; 91, feeding port. Detailed implementation manners

[0039] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0040] As Figures 1 to 11 shown, the laboratory waste liquid treatment device of the present invention includes a bracket 1 installed in a treatment tank 01. A cylinder 2 for treating waste liquid is provided on the bracket 1. A cleaning component 3, a driving component 4, a waste discharging component 7, and a control component 8 are provided in the cylinder 2. The driving component 4 is connected to the cleaning component 3 to control the cleaning component 3. The cleaning component 3 is used to collect metal impurities in the waste liquid. The control component 8 is connected to the cleaning component 3 to control the discharge of the metal impurities collected in the cleaning component 3 into the waste discharging component 7, and finally discharged through the waste discharging component 7.

[0041] Referring Figure 2 、 Figure 3 、 Figure 8 As shown in the figures, the cylinder 2 includes: an annular cylinder 21 and an intermediate plate 22. The annular cylinder 21 is rotatably assembled on the bracket 1. There are two intermediate plates 22, and the two intermediate plates 22 are respectively arranged at both ends of the annular cylinder 21. The annular cylinder 21 is horizontally placed. The intermediate plate 22 is rotatably matched with the annular cylinder 21. The intermediate plate 22 and the annular cylinder 21 enclose a cavity 221 for placing waste liquid. The cavity 221 is cylindrical.

[0042] Referring Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown in the figures, the cleaning component 3 includes: a magnetic ring 31, a collection frame 32, and a scraper 33. The magnetic ring 31 is arranged in an arc shape and sleeved outside the annular cylinder 21. An electromagnetic coil is installed in the magnetic ring 31. When the electromagnetic coil is energized, the magnetic ring 31 has magnetism. The collection frame 32 is arranged in the annular cylinder 21. The collection frame 32 is connected to the intermediate plate 22. The collection frame 32 is located above the axis of the annular cylinder 21. The scraper 33 is arranged on the collection frame 32. The lower end of the scraper 33 is connected to the collection frame 32, and the upper end is inclined clockwise and abuts against the inner wall of the annular cylinder 21. The upper end of the scraper 33 is located above the collection frame 32. An opening 311 is provided at the top of the magnetic ring 31, and the opening 311 corresponds to the collection frame 32.

[0043] The inner side of the magnetic ring 31 is close to the annular cylinder 21, and the metal impurity particles deposited at the bottom of the annular cylinder 21 are adsorbed, so that the metal impurities stick to the inner wall of the annular cylinder 21. The driving component 4 is connected to the annular cylinder 21 to drive the annular cylinder 21 to rotate around the middle plate 22. When the annular cylinder 21 rotates counterclockwise, it drives the metal impurities to rotate synchronously, drives the metal impurities to separate from the waste liquid, and rotates to the top of the inner wall of the annular cylinder 21. When the metal impurities move to the top of the collecting frame 32, the metal impurities move to the opening 311 of the magnetic ring 31, and the metal impurities leave the adsorption range of the magnetic ring 31 and fall into the collecting frame 32. As the annular cylinder 21 continues to rotate, the scraper 33 scrapes off the remaining metal impurities on the annular cylinder 21, guides and collects them into the collecting frame 32.

[0044] Reference Figure 5 , Figure 6 , Figure 7 The scraper 33 is rotatably mounted on the collection frame 32. A torsion spring is provided at the connection between the scraper 33 and the collection frame 32 to connect the two. The torsion spring drives the scraper 33 to rotate, so that the upper end of the scraper 33 is kept in contact with the inner wall of the annular cylinder 21. A connecting rod 5 is provided on the side of the collection frame 32 close to the middle plate 22. The connecting rod 5 is coaxially arranged with the rotating shaft of the scraper 33. The collection frame 32 is connected to the middle plate 22 through the connecting rod 5. The connecting rod 5 is rotatably mounted on the middle plate 22. One end of the connecting rod 5 away from the collection frame 32 extends to the outside of the cavity 221. A stopper 51 is provided on the side of the connecting rod 5. The stopper 51 is located outside the cavity 221. An extension portion 211 is provided on the annular cylinder 21. The extension portion 211 is sleeved on the outside of the blocking rod 51. The extension portion 211 is coaxially arranged with the axis of the annular cylinder 21. A plurality of levers 212 are provided on the extension portion 211. The plurality of levers 212 are circumferentially arranged around the extension portion 211. The levers 212 and the blocking rod 51 are both arranged in a direction toward the axis of the annular cylinder 21. A drainage hole 322 is provided on a side of the collecting frame 32 away from the scraper 33.

[0045] The driving assembly 4 drives the annular cylinder 21 to rotate around the middle plate 22, and the extension part 211 also rotates around the middle plate 22. The rotation of the extension part 211 drives the lever 212 to pass through the baffle rod 51 in turn. When the lever 212 moves to the baffle rod 51, the lever 212 abuts against the baffle rod 51 to drive the side of the collecting frame 32 away from the connecting rod 5 to rotate upward. After the lever 212 is separated from the baffle rod 51, the side of the collecting frame 32 away from the connecting rod 5 rotates to the initial position again under the action of its own gravity. The reciprocating swing of the collecting frame 32 is realized by multiple levers 212 to throw out the moisture contained in the metal impurities, and in the initial state, the end of the collecting frame 32 away from the connecting rod 5 is tilted downward so that the moisture can flow out through the drainage hole 322.

[0046] Reference Figure 5 , Figure 6The collecting frame 32 is provided with a mounting portion 323, which is arranged on a side of the collecting frame 32 away from the scraper 33, and a drainage hole 322 is arranged on the mounting portion 323. A placement cavity 324 is provided in the mounting portion 323, and the placement cavity 324 is used to place liquid medicine for treating waste liquid. An outlet 325 connected to the placement cavity 324 is provided on the mounting portion 323. When the collecting frame 32 swings, the mounting portion 323 is driven to swing, and the liquid medicine in the placement cavity 324 is thrown out. At the same time, the annular cylinder 21 rotates, and the liquid medicine is evenly sprinkled in the waste liquid to treat the waste liquid.

[0047] Reference Figure 6 , Figure 7 In addition, a clearance groove 222 is provided on one side of the middle plate 22 near the baffle rod 51, and the side of the baffle rod 51 extends into the clearance groove 222. A plurality of protrusions are provided in the clearance groove 222, and the protrusions correspond to the end of the baffle rod 51 away from the connecting rod 5. When the baffle rod 51 rotates with the collection frame 32, the baffle rod 51 is driven to pass through the plurality of protrusions in sequence to drive the collection frame 32 to vibrate. In order to discharge the moisture in the collection frame 32. In addition, after the lever 212 is separated from the baffle rod 51, the baffle rod 51 abuts against the inner wall of the clearance groove 222 to support the collection frame 32.

[0048] Reference Figure 4 , Figure 5 A push plate 6 is slidably installed in the collection frame 32, and an elastic member 61 connecting the push plate 6 and the collection frame 32 is provided between the push plate 6 and the collection frame 32. The elastic member 61 is set as a spring, and the spring is used to drive the push plate 6 to move toward the direction of the rotating shaft of the scraper 33. The upper end of the push plate 6 slides and abuts against the inner side of the scraper 33.

[0049] When the blocking rod 51 drives the collecting frame 32 to rotate, the end of the collecting frame 32 away from the scraper 33 rotates upward, so that the distance between the scraper 33 and the collecting frame 32 is reduced, driving different positions on the scraper 33 to abut against the push plate 6, so as to drive the push plate 6 to move in the collecting frame 32. When the push plate 6 moves, it scrapes off the impurities adhered to the scraper 33, thereby improving the collection effect of the impurities.

[0050] Reference Figure 3 , Figure 8, the impurity removal component 7 includes: an impurity removal pipe 71, a guiding frame 72, a spiral blade 73, and a power component 74. The impurity removal pipe 71 is coaxially arranged with the annular cylinder 21. The guiding frame 72 is arranged on the impurity removal pipe 71 and is internally connected to the impurity removal pipe 71. The guiding frame 72 is arranged vertically, and the upper end of the guiding frame 72 is close to the collection frame 32. The spiral blade 73 is rotationally assembled in the impurity removal pipe 71, and the power component 74 is set as a motor. The end of the impurity removal pipe 71 extends to the outside of the cavity 221. An outlet two 711 is opened on the impurity removal pipe 71, and the outlet two 711 is located outside the cavity 221. The power component 74 is arranged at one end of the impurity removal pipe 71 outside the annular cylinder 21, and the output end of the power component 74 is connected to the spiral blade 73 to drive the spiral blade 73 to rotate.

[0051] Refer to Figure 4 , Figure 5 , Figure 6 , an outlet one 321 is opened below the collection frame 32, and a control component 8 is arranged on the collection frame 32. The control component 8 is arranged at the outlet one 321 to control the closing of the outlet one 321.

[0052] When the control component 8 opens the outlet one 321, the impurities in the collection frame 32 enter the impurity removal pipe 71 through the guiding frame 72. The power component 74 drives the spiral blade 73 to rotate, conveys the impurities, and discharges the impurities through the outlet two 711.

[0053] Refer to Figure 4 , Figure 5 , the control component 8 includes: a sliding plate 81, a push rod 82, and a second elastic part 83. The sliding plate 81 is slidably assembled at the bottom of the collection frame 32. The sliding plate 81 slides at the outlet one 321 to control the opening and closing of the outlet one 321. The push rod 82 is connected to the sliding plate 81 and is located inside the collection frame 32. The push rod 82 is arranged along the sliding direction of the push plate 6. The second elastic part 83 is set as a spring and is connected to the sliding plate 81 and the collection frame 32. The second elastic part 83 drives the sliding plate 81 to slide to the outside of the outlet one 321 to close the outlet one 321.

[0054] Refer to Figure 7 , a control rod 213 is arranged on the extension part 211. The control rod 213 is arranged along the direction towards the axis of the annular cylinder 21. The length of the control rod 213 is greater than the length of the shifting rod 212. So that the angle by which the control rod 213 drives the blocking rod 51 to rotate is greater than the angle by which the shifting rod 212 drives the blocking rod 51 to rotate.

[0055] When the lever 212 cooperates with the shift lever 51, the push plate 6 slides within the collection box 32 but does not contact the push rod 82. When the control lever 213 cooperates with the shift lever 51, the collection box 32 is driven to rotate by a larger angle, and the distance that the push plate 6 moves accordingly is increased. At this time, the push plate 6 moves to cooperate with the push rod 82 and drives the push rod 82 to move. The movement of the push rod 82 drives the slide plate 81 to move, opening the first outlet 321 to discharge the metal impurities within the collection box 32.

[0056] Refer to Figure 3 、 Figure 4 , a first discharge port 312 is provided at the bottom of the magnetic ring 31, and a second discharge port 215 is provided on the side surface of the annular cylinder 21. When the second discharge port 215 rotates to be directly below the annular cylinder 21, it corresponds to the first discharge port 312. An electromagnetic valve for controlling the closing of the second discharge port 215 is provided within the second discharge port 215. When it is necessary to discharge the waste liquid within the cavity 221, the annular cylinder 21 is rotated so that the second discharge port 215 corresponds to the first discharge port 312, and then the second discharge port 215 is opened to discharge the waste liquid.

[0057] Refer to Figure 8 , a cover plate 214 is provided on the extension portion 211. There are two cover plates 214, which are respectively located at both ends of the annular cylinder 21. The cover plate 214 is arranged in parallel and spaced apart from the middle plate 22, and the cover plate 214 is fixedly connected to the annular cylinder 21.

[0058] Refer to Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 , the drive assembly 4 includes: a drive member 41, a first gear 42, a second gear 43, a first transmission member 44, and a second transmission member 45. The drive member 41 is provided on the bracket 1, the drive member 41 is configured as a motor, the first gear 42 is provided at the output end of the drive member 41, the second gear 43 is coaxially connected to the cover plate 214, and the first gear 42 meshes with the second gear 43. The drive member 41 drives the cover plate 214 to rotate through the first gear 42 and the second gear 43, and the cover plate 214 drives the annular cylinder 21 to rotate.

[0059] Refer to Figure 9 、 Figure 10 、 Figure 11 , the first transmission member 44 and the second transmission member 45 have the same structure, and the first transmission member 44 and the second transmission member 45 are arranged in one-to-one correspondence with the two middle plates 22. Both the first transmission member 44 and the second transmission member 45 include: a transmission plate 441, a ratchet wheel 442, and a pawl 443. The ratchet wheel 442 is coaxially and fixedly connected to the middle plate 22, the pawl 443 is rotatably assembled on the transmission plate 441, the pawl 443 cooperates with the ratchet wheel 442, and the cooperation directions of the ratchet wheels 442 and the pawls 443 within the first transmission member 44 and the second transmission member 45 are the same. The transmission plate 441 within the first transmission member 44 is fixedly connected to the cover plate 214, and the transmission plate 441 within the second transmission member 45 is fixedly connected to the impurity discharge pipe 71.

[0060] By setting the first transmission part 44 and the second transmission part 45, when the annular cylinder 21 rotates counterclockwise, the middle plate 22 is fixed, and when the annular cylinder 21 rotates clockwise, the middle plate 22 rotates synchronously.

[0061] When the second gear 43 drives the annular cylinder 21 to rotate counterclockwise, the transmission plate 441 in the first transmission part 44 rotates synchronously with the cover plate 214. At this time, the transmission plate 441 drives the pawl 443 to rotate around the ratchet wheel 442. The transmission plate 441 in the second transmission part 45 always remains fixed, and the pawl 443 in the second transmission part 45 engages with the ratchet wheel 442 to restrict the middle plate 22, reducing the phenomenon that the middle plate 22 rotates counterclockwise with the annular cylinder 21, so as to clean the metal impurities.

[0062] When the second gear 43 drives the annular cylinder 21 to rotate clockwise, the transmission plate 441 in the first transmission part 44 drives the pawl 443 to engage with the ratchet wheel 442, driving the middle plate 22 to rotate with the annular cylinder 21. At the same time, the pawl 443 in the second transmission part 45 separates from the ratchet wheel 442, so that the middle plate 22 rotates synchronously with the annular cylinder 21 in the clockwise direction.

[0063] When it is necessary to clean the metal impurities, the annular cylinder 21 rotates counterclockwise, that is, at this time the middle plate 22 remains stationary. After the metal impurities are processed and discharged through the impurity discharge pipe 71, the annular cylinder 21 rotates clockwise, and the middle plate 22 rotates synchronously with the annular cylinder 21. At this time, the rotation direction of the middle plate 22 is the same as the inclination direction of the scraper 33. When the scraper 33 moves below the rotation axis of the annular cylinder 21, the non-metallic precipitate impurities at the bottom of the annular cylinder 21 are scraped up. The annular cylinder 21 continues to rotate. When the scraper 33 rotates above the collection frame 32 again, the scraped precipitate impurities are transferred into the collection frame 32 for subsequent discharge through the impurity discharge pipe 71.

[0064] When adding a flocculant to the waste liquid to flocculate the heavy metals in the waste liquid, the flocs will sink to form a sludge layer. At this time, the annular cylinder 21 can also be rotated clockwise to drive the scraper 33 to rotate to the bottom of the annular cylinder 21, and the precipitated flocs are scraped up and collected in the collection frame 32.

[0065] In order to facilitate the scraper 33 to collect the flocs or precipitated non-metallic impurities, a number of small through holes can be opened on the scraper 33 so that when the scraper 33 moves past the bottom of the annular cylinder 21, the flocs or precipitated impurities can enter between the scraper 33 and the collection frame 32.

[0066] Since the non-metallic precipitate impurities are not adsorbed by the magnetic ring 31, they will always be at the bottom of the annular cylinder 21 when the annular cylinder 21 rotates. After the scraper 33 rotates to the bottom of the annular cylinder 21, this part of the impurities can be scraped up for collection.

[0067] Reference Figure 3 Figure 3 , a feeding pipe 9 is coaxially arranged on the middle plate 22. The middle plate 22 is rotatably assembled on the feeding pipe 9. One end of the feeding pipe 9 extends into the annular cylinder 21. A feeding port 91 is opened below the feeding pipe 9. The feeding port 91 is located in the annular cylinder 21. The waste liquid is added into the annular cylinder 21 through the feeding pipe 9. Additionally, because the feeding pipe 9 and the middle plate 22 are coaxially arranged, the liquid level height of the waste liquid added into the annular cylinder 21 is lower than the axis of the annular cylinder 21, reducing the backflow phenomenon of the waste liquid.

[0068] The implementation principle of the present invention is as follows: The driving member 41 drives the annular cylinder 21 to rotate counterclockwise. At this time, the ratchet pawl 443 in the first transmission member 44 is not engaged with the ratchet wheel 442, and the ratchet pawl 443 rotates around the ratchet wheel 442. The ratchet pawl 443 in the second transmission member 45 is engaged with the ratchet wheel 442 to fix the middle plate 22, so that the middle plate 22 remains fixed when the annular cylinder 21 rotates counterclockwise. During the process, the scraper 33 and the collection frame 32 are always above the axis of the annular cylinder 21.

[0069] The magnetic ring 31 adsorbs the metal impurity particles at the bottom of the annular cylinder 21, making the metal impurity particles adhere to the inner wall of the annular cylinder 21 and rotate with the annular cylinder 21. When the metal impurity particles rotate above the collection frame 32, they also move to the opening 311 of the magnetic ring 31, out of the adsorption range of the magnetic ring 31, and the metal impurities fall into the collection frame 32. The annular cylinder 21 continues to rotate, and the scraper 33 scrapes the residual impurities on the inner wall of the annular cylinder 21 and guides them into the collection frame 32.

[0070] During the process, multiple toggle rods 212 pass by the stop rod 51 in sequence, driving the collection frame 32 to swing to drain the water contained in the impurities from the drain hole 322. When the control rod 213 moves to the stop rod 51 and makes the collection frame 32 rotate close to the scraper 33, it drives the push plate 6 to move into contact with the push rod 82, thereby driving the sliding plate 81 to move and opening the first outlet 321. After the first outlet 321 is opened, the impurities in the collection frame 32 fall into the impurity discharge pipe 71 through the guiding frame 72 and are discharged.

[0071] Under the action of the magnetic ring 31, the precipitated metal impurities can be separated from the waste liquid and collected. During the process, the annular cylinder 21 rotates, causing less disturbance to the flocculants and reducing the phenomenon that the flocculants are dispersed, so as to facilitate subsequent separation operations and improve the treatment effect of the sewage.

[0072] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A laboratory waste liquid treatment device, comprising a bracket (1), characterized in that, A cylinder (2) is arranged on the support (1), and a cleaning component (3) and a driving component (4) are arranged on the cylinder (2); The cylinder body (2) comprises: an annular cylinder (21) rotatably matched with the bracket (1), and an intermediate plate (22) rotatably matched with two ends of the annular cylinder (21), wherein the intermediate plate (22) and the annular cylinder (21) together form a cavity (221) for placing waste liquid; The cleaning assembly (3) comprises: a magnetic ring (31) sleeved on the outside of the annular cylinder (21), a collecting frame (32) located inside the annular cylinder (21) and connected to the middle plate (22), and a scraper (33) located between the collecting frame (32) and the annular cylinder (21), wherein the upper end of the scraper (33) is inclined in a clockwise direction and abuts against the inner wall of the annular cylinder (21); an opening (311) is provided at the top of the magnetic ring (31), and the collecting frame (32) corresponds to the opening (311); a driving assembly (4) is connected to the annular cylinder (21) to drive the annular cylinder (21) to rotate around the middle plate (22); The magnetic ring (31) absorbs the metal impurities at the bottom of the annular cylinder (21) so that the impurities adhere to the inner wall of the annular cylinder (21). The annular cylinder (21) rotates counterclockwise around the middle plate (22) and drives the impurities to separate from the waste liquid. After the impurities move to the top of the collection frame (32), they leave the adsorption range of the magnetic ring (31) and fall into the collection frame (32). Then, the scraper (33) scrapes off the remaining impurities on the annular cylinder (21) and guides them into the collection frame (32).

2. The laboratory waste liquid treatment device according to claim 1, wherein, The scraper (33) is rotatably connected to the collection frame (32), and a torsion spring is installed at the connection point so that the upper end of the scraper (33) is closely attached to the inner wall of the annular cylinder (21). A connecting rod (5) coaxial with the rotating shaft of the scraper (33) is provided on the collection frame (32), and the connecting rod (5) passes through the middle plate (22) and extends to the outside of the cavity (221). A blocking rod (51) is provided on the side of the connecting rod (5), and an extension portion (211) is provided on the annular cylinder (21), and the extension portion (211) is sleeved on the outside of the blocking rod (51). A plurality of levers (212) are circumferentially arranged on the extension portion (211), and when the levers (212) rotate and cooperate with the blocking rods (51), the collection frame (32) is driven to swing, and a drainage hole (322) is provided on a side of the collection frame (32) away from the scraper (33).

3. The laboratory waste liquid treatment device according to claim 2, wherein A clearance groove (222) is provided on the side of the middle plate (22), and a side of the blocking rod (51) extends into the clearance groove (222). A plurality of protrusions are provided in the clearance groove (222). When the shifting rod (212) drives the blocking rod (51) to rotate, the blocking rod (51) passes through the plurality of protrusions in sequence to drive the collection frame (32) to vibrate. After the shifting rod (212) is separated from the blocking rod (51), the blocking rod (51) rotates until it contacts the inner wall of the clearance groove (222).

4. The laboratory waste liquid treatment device according to claim 2, wherein A push plate (6) is slidably mounted in the collecting frame (32), one end of the push plate (6) facing away from the collecting frame (32) abutting against the inner side of the scraper (33), and an elastic member (61) connected to the collecting frame (32) is provided on the push plate (6). The elastic member (61) drives the push plate (6) to move in the direction of the rotating shaft of the scraper (33), and the upper end of the push plate (6) slidably abuts against the inner side of the scraper (33).

5. The laboratory waste liquid treatment device according to claim 4, characterized in that, A debris removal component (7) is arranged in the annular cylinder (21); an outlet (321) is provided below the collecting frame (32); a control component (8) for controlling the closing of the outlet (321) is arranged on the collecting frame (32); the debris removal component (7) comprises: a debris removal pipe (71), a guide frame (72), a spiral sheet (73), and a power member (74); the debris removal pipe (71) is coaxially rotatably arranged in the annular cylinder (21); the debris removal pipe (71) is fixedly connected to the bracket (1); the guide frame (72) is provided to close the outlet (321); The guide frame (72) is arranged in a vertical direction. The lower end of the guide frame (72) is communicated with the interior of the impurity discharge pipe (71), and the upper end of the guide frame (72) is located below the first outlet (321). The side of the impurity discharge pipe (71) is provided with a second outlet (711), and the second outlet (711) is located outside the annular cylinder (21). The spiral piece (73) is rotatably assembled in the impurity discharge pipe (71). The power piece (74) is arranged on the impurity discharge pipe (71), and the output end of the power piece (74) is connected to the spiral piece (73).

6. The laboratory waste liquid treatment device according to claim 5, characterized in that, The control assembly (8) comprises a slide plate (81), a push rod (82), and a second elastic member (83). The slide plate (81) is slidably mounted on the bottom of the collection frame (32) to control the closing of the first outlet (321). The push rod (82) is arranged in the collection frame (32) and connected to the slide plate (81). The second elastic member (83) connects the slide plate (81) and the collection frame (32). The second elastic member (83) is used to drive the slide plate (81) to move toward the push plate (6) to close the first outlet (321). A control rod (213) is arranged on the extension portion (211). The length of the control rod (213) is greater than the length of the lever (212). When the control rod (213) cooperates with the blocking rod (51), the push plate (6) is driven to cooperate with the push rod (82) and drive the push rod (82) to move. The movement of the push rod (82) drives the slide plate (81) to move and open the first outlet (321).

7. The laboratory waste liquid treatment device according to claim 2, wherein A mounting portion (323) is provided on a side of the collecting frame (32) facing away from the scraper (33); a drainage hole (322) is provided on the mounting portion (323); a placement cavity (324) for placing liquid medicine for treating waste liquid is provided in the mounting portion (323); and an outlet 3 (325) communicating with the placement cavity (324) is provided on the mounting portion (323).

8. The laboratory waste liquid treatment device according to claim 5, characterized in that, A cover plate (214) is arranged on the extension portion (211). The driving assembly (4) comprises a driving member (41), a first gear (42), and a second gear (43). The driving member (41) is arranged on the bracket (1). The first gear (42) is arranged at the output end of the driving member (41). The second gear (43) meshes with the first gear (42). The second gear (43) is coaxially fixedly connected to the cover plate (214). The driving member (41) drives the annular cylinder (21) to rotate via the first gear (42) and the second gear (43).

9. The laboratory waste liquid treatment device according to claim 1, characterized in that, The driving component (4) further includes two sets of transmission members I (44) and transmission members II (45) with the same structure. The transmission members I (44) and the transmission members II (45) are respectively arranged at the middle plates (22) at both ends of the annular cylinder (21). The transmission member I (44) includes: a transmission plate (441), a ratchet wheel (442), and a pawl (443). The ratchet wheel (442) is coaxially and fixedly connected to the middle plate (22), the pawl (443) is rotatably connected to the transmission plate (441), the pawl (443) cooperates with the ratchet wheel (442), the cooperation directions of the pawls (443) and the ratchet wheels (442) in the transmission members I (44) and the transmission members II (45) are the same, the transmission plate (441) in the transmission member I (44) is fixedly connected to the cover plate (214), and the transmission plate (441) in the transmission member II (45) is fixedly connected to the impurity discharge pipe (71).

10. The laboratory waste liquid treatment device according to claim 1, characterized in that, A first discharge port (312) is formed at the bottom of the magnetic ring (31). A second discharge port (215) is arranged on the side surface of the annular cylinder (21). When the second discharge port (215) rotates to be directly below the annular cylinder (21), it corresponds to the first discharge port (312). An electromagnetic valve for controlling the closing of the second discharge port (215) is arranged in the second discharge port (215).

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