Wastewater treatment device and method for wet comprehensive recovery

Abstract

The present invention is applicable to the field of wastewater treatment devices, and provides a wastewater treatment device for wet comprehensive recovery, comprising a housing, and further comprising: a rotating sleeve, wherein a rotating pipe is rotatably connected to the rotating sleeve, wherein the rotating pipe is fixedly connected to a transverse pipe, wherein a stirring mechanism is rotatably connected to the transverse pipe, wherein a linkage mechanism is provided between the stirring mechanism and the rotating sleeve; wherein a drainage mechanism is provided in the transverse pipe and the rotating pipe; wherein the rotating sleeve is fixedly connected to a scraper, wherein a water inlet is provided on the surface of the scraper in contact with the inner wall of the housing, wherein a one-way water inlet valve is provided at the water inlet, and wherein a one-way water outlet valve is provided on the rotating sleeve; and wherein an air pressure mechanism is provided between the rotating sleeve and the rotating pipe. In this wastewater treatment device for wet comprehensive recovery, the stirring mechanism can move synchronously with the rotating pipe, and at the same time, the rotating sleeve rotates in the opposite direction relative to the rotating pipe. The rotating sleeve drives the stirring mechanism to rotate around the transverse pipe through the linkage mechanism, thereby accelerating the mixing of the precipitant and the wastewater and improving the mixing efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of wastewater treatment devices, and in particular relates to a wastewater treatment device and method for wet comprehensive recovery. Background Art

[0002] Wet chemical recycling mainly recovers precious metals from scraps and scraps. Scrap plates and scraps containing precious metals are treated with strong acids to obtain dissolved substances containing precious metals and non-precious metals, which are then reduced to metal products such as gold, silver, and palladium using chemical methods. Waste acids containing high concentrations of copper ions can be used to recover copper sulfate or electrolytic copper.

[0003] Wet chemical recycling requires preliminary impurity removal from wastewater. This is typically accomplished by adding a precipitant to the wastewater, stirring and mixing it to form a flocculent precipitate, which is then allowed to settle and filter. However, this method takes a long time to settle to the bottom, and during this process, the flocculent precipitate tends to adhere to the side walls and bottom of the device, necessitating a secondary rinse with water, a cumbersome operation.

[0004] In order to avoid the above technical problems, it is necessary to provide a wastewater treatment device and method for wet comprehensive recovery to overcome the above defects in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a wastewater treatment device and method for wet comprehensive recovery, aiming to solve the problem that when the existing wastewater treatment device for wet comprehensive recovery is working, the sedimentation process is long, and during the sedimentation process, flocculent precipitates tend to adhere to the side walls and the bottom of the device and accumulate, requiring secondary washing with water, which is cumbersome to operate.

[0006] The present invention is achieved by providing a wastewater treatment device for wet comprehensive recovery, comprising a housing and:

[0007] A rotating sleeve is rotatably connected to the outer shell, a rotating tube is rotatably connected to the rotating sleeve, the rotating tube is fixedly connected to the transverse tube, the transverse tube is rotatably connected to a stirring mechanism, the stirring mechanism can move synchronously with the rotating tube, a linkage mechanism is provided between the stirring mechanism and the rotating sleeve, and the linkage mechanism can drive the stirring mechanism to rotate around the transverse tube;

[0008] The horizontal pipe and the rotating pipe are provided with a drainage mechanism, which can filter and collect impurities in the wastewater;

[0009] The rotating sleeve is fixedly connected to a scraper, the scraper abuts against the inner wall of the shell, the surface of the scraper abutting against the inner wall of the shell is provided with a water inlet, a one-way water inlet valve is provided at the water inlet, and a one-way water outlet valve is provided on the rotating sleeve;

[0010] A pneumatic mechanism is provided between the rotating sleeve and the rotating tube, and the pneumatic mechanism can adsorb flocculent precipitation near the inner wall of the shell;

[0011] A driving mechanism is provided between the rotating sleeve and the rotating tube, and the driving mechanism can drive the rotating sleeve and the rotating tube to rotate in opposite directions;

[0012] The rotating tube is connected with a medicine dispensing component, and the medicine dispensing component can spray medicine into the shell.

[0013] According to a further technical solution, the stirring mechanism includes a connecting cylinder and a stirring rod, wherein the connecting cylinder is rotatably connected to the horizontal tube, a plurality of stirring rods are connected to the connecting cylinder, and the connecting cylinder is communicated with the outside.

[0014] According to a further technical solution, the linkage mechanism includes a gear plate and a transmission wheel, the gear plate is fixedly connected to the rotating sleeve, the transmission wheel is fixedly connected to the connecting cylinder, and the gear plate is meshed with the transmission wheel.

[0015] According to a further technical solution, the drainage mechanism includes a rotating shaft, blades and a filter assembly;

[0016] The rotating shaft is fixedly connected to the inner end surface of the connecting cylinder, the rotating shaft is spirally provided with blades, and the filter assembly can filter impurities.

[0017] According to a further technical solution, the filter assembly includes a filter box, a filter screen plate and a nozzle;

[0018] The rotating pipe is connected to a filter box, a filter screen is fixedly arranged in the filter box, and the filter box is connected to multiple nozzles.

[0019] According to a further technical solution, the pneumatic mechanism includes a guide seat, a movable seat, a spring and a spring baffle;

[0020] The guide seat is fixedly connected to the inner wall of the rotating sleeve, the movable seat is vertically slidably connected to the rotating tube, and the movable seat is sealed to the inner wall of the rotating tube, the spring baffle is fixedly connected to the rotating tube, the spring is arranged between the movable seat and the spring baffle, the guide seat and the movable seat are both provided with a socket in an annular shape, and the sockets of the movable seat and the guide seat are engaged with each other.

[0021] According to a further technical solution, the driving mechanism includes a motor, a gear transmission pair and a belt transmission pair;

[0022] The motor is fixedly connected to the housing, a belt transmission pair is provided between the output shaft of the motor and the rotating sleeve, and a gear transmission pair is provided between the output shaft of the motor and the rotating tube.

[0023] According to a further technical solution, the drug dispensing assembly includes a discharge pipe, a spray pipe and a drug box;

[0024] The medicine box is fixedly connected to the shell, the discharge pipe is communicated with the medicine box, the spray pipe is rotatably connected to the discharge pipe, and the spray pipe is fixedly connected to the rotating pipe.

[0025] A method for treating wastewater for comprehensive wet recovery, comprising the following steps:

[0026] Step (1): connecting the housing to the wastewater pipe, starting the driving mechanism, the driving mechanism drives the rotating tube to rotate, and the rotating tube drives the drug dispensing component to rotate, thereby evenly spreading the precipitant into the wastewater in the housing;

[0027] Step (2): The stirring mechanism can move synchronously with the rotating tube, and the rotating sleeve rotates in the opposite direction relative to the rotating tube. The rotating sleeve drives the stirring mechanism to rotate around the horizontal tube through the linkage mechanism, thereby accelerating the mixing of the precipitant and the wastewater;

[0028] Step (3): the wastewater is mixed with the precipitant to generate flocculent precipitate, and the drainage mechanism filters and collects impurities in the wastewater;

[0029] Step (4): The rotating sleeve drives the scraper to scrape off the flocculent precipitates adhered to the inner wall of the shell. At this time, the air pressure mechanism can adsorb the flocculent precipitates near the inner wall of the shell; thereby, the wastewater and the precipitant are quickly mixed to generate flocculent precipitates and the flocculent precipitates can be adsorbed at the same time.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention provides a wastewater treatment device for wet comprehensive recovery, wherein the stirring mechanism can move synchronously with the rotating pipe, and the rotating sleeve rotates in the opposite direction relative to the rotating pipe. The rotating sleeve drives the stirring mechanism to rotate around the horizontal pipe through a linkage mechanism, thereby accelerating the mixing of the precipitant and the wastewater and improving the mixing efficiency.

[0032] The present invention provides a wastewater treatment device for wet comprehensive recovery, wherein wastewater is mixed with a precipitant to generate flocculent precipitation, and the drainage mechanism filters and collects impurities in the wastewater;

[0033] The present invention provides a wastewater treatment device for wet comprehensive recovery. The rotating sleeve drives the scraper to scrape off the flocculent precipitates adhered to the inner wall of the shell. At this time, the air pressure mechanism can adsorb the flocculent precipitates near the inner wall of the shell; thereby, the wastewater and the precipitant are quickly mixed to generate flocculent precipitates, and the flocculent precipitates can be adsorbed at the same time, thereby improving the wastewater purification and filtration rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 for Figure 1Schematic diagram of the enlarged structure of area A in the middle;

[0036] Figure 3 It is a connection diagram of the stirring mechanism and the drainage mechanism;

[0037] Figure 4 It is a structural diagram of the pneumatic mechanism;

[0038] Figure 5 for Figure 1 Enlarged structural cross-sectional view of area B in the middle.

[0039] In the accompanying drawings: 1. outer shell; 2. rotating sleeve; 3. rotating tube; 4. stirring mechanism; 41. connecting tube; 42. stirring rod; 5. linkage mechanism; 51. gear plate; 52. transmission wheel; 6. drainage mechanism; 61. rotating shaft; 62. blade; 63. filter assembly; 631. filter box; 632. filter screen; 633. nozzle; 7. air pressure mechanism; 71. guide seat; 72. moving seat; 73. spring; 74. spring baffle; 8. driving mechanism; 81. motor; 82. gear transmission pair; 83. belt transmission pair; 9. medicine feeding assembly; 91. discharge pipe; 92. spray pipe; 93. medicine box; 10. horizontal pipe; 11. scraper; 12. one-way water inlet valve; 13. one-way water outlet valve. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0042] like Figure 1-Figure 5 As shown, a wastewater treatment device for wet comprehensive recovery provided by the present invention includes a housing 1 and further includes:

[0043] A rotating sleeve 2 is rotatably connected to the housing 1. A rotating tube 3 is rotatably connected to the rotating sleeve 2. The rotating tube 3 is fixedly connected to a transverse tube 10. The transverse tube 10 is rotatably connected to a stirring mechanism 4. The stirring mechanism 4 can move synchronously with the rotating tube 3. A linkage mechanism 5 is provided between the stirring mechanism 4 and the rotating sleeve 2. The linkage mechanism 5 can drive the stirring mechanism 4 to rotate around the transverse tube 10.

[0044] The horizontal pipe 10 and the rotating pipe 3 are provided with a drainage mechanism 6, which can filter and collect impurities in the wastewater;

[0045] The rotating sleeve 2 is fixedly connected to a scraper 11, and the scraper 11 abuts against the inner wall of the shell 1. A water inlet is provided on the surface of the scraper 11 abutting against the inner wall of the shell 1, and a one-way water inlet valve 12 is provided at the water inlet. A one-way water outlet valve 13 is provided on the rotating sleeve 2, and a blocking net is provided in the scraper 11;

[0046] A pneumatic mechanism 7 is provided between the rotating sleeve 2 and the rotating tube 3, and the pneumatic mechanism 7 can adsorb flocculent sediment near the inner wall of the housing 1;

[0047] A driving mechanism 8 is provided between the rotating sleeve 2 and the rotating tube 3, and the driving mechanism 8 can drive the rotating sleeve 2 and the rotating tube 3 to rotate in opposite directions;

[0048] The rotating tube 3 is connected to a medicine dispensing component 9 , and the medicine dispensing component 9 can spray medicine into the housing 1 .

[0049] When in use, the housing 1 is connected to the wastewater pipe, and the driving mechanism 8 is started. The driving mechanism 8 drives the rotating tube 3 to rotate, and the rotating tube 3 drives the drug dispensing component 9 to rotate, thereby evenly spreading the precipitant into the wastewater in the housing 1;

[0050] The stirring mechanism 4 can move synchronously with the rotating tube 3. At the same time, the rotating sleeve 2 rotates in the opposite direction relative to the rotating tube 3. The rotating sleeve 2 drives the stirring mechanism 4 to rotate around the horizontal tube 10 through the linkage mechanism 5, thereby accelerating the mixing of the precipitant and the wastewater and improving the mixing efficiency.

[0051] The wastewater and the precipitant are mixed to form flocculent precipitates, at which time the drainage mechanism 6 filters and collects impurities in the wastewater;

[0052] The rotating sleeve 2 drives the scraper 11 to scrape off the flocculent sediment adhered to the inner wall of the shell 1. At this time, the air pressure mechanism 7 can adsorb the flocculent sediment near the inner wall of the shell 1; thereby, the wastewater and the precipitant are quickly mixed to generate flocculent sediment and the flocculent sediment can be adsorbed at the same time, thereby improving the wastewater purification and filtration rate.

[0053] In an embodiment of the present invention, as a preferred embodiment of the present invention, the stirring mechanism 4 includes a connecting tube 41 and a stirring rod 42, the connecting tube 41 is rotatably connected to the horizontal tube 10, the connecting tube 41 is connected to multiple stirring rods 42, and the connecting tube 41 is connected to the outside.

[0054] In the stirring mechanism 4 , the rotating pipe 3 drives the horizontal pipe 10 to rotate, the horizontal pipe 10 drives the connecting tube 41 to move synchronously, and the connecting tube 41 drives all the stirring rods 42 to mix and stir the wastewater and the precipitant.

[0055] In the embodiment of the present invention, as a preferred embodiment of the present invention, the linkage mechanism 5 includes a gear plate 51 and a transmission wheel 52, the gear plate 51 is fixedly connected to the rotating sleeve 2, the transmission wheel 52 is fixedly connected to the connecting cylinder 41, and the gear plate 51 and the transmission wheel 52 are meshed;

[0056] In the linkage mechanism 5, the rotating sleeve 2 rotates in the opposite direction relative to the rotating tube 3, the transverse tube 10 is fixedly connected to the rotating tube 3, and the connecting tube 41 is rotationally connected to the transverse tube 10, the transmission wheel 52 is fixedly connected to the connecting tube 41, and the gear plate 51 is engaged with the transmission wheel 52, so the transmission wheel 52 continuously rotates around the gear plate 51, so that the transmission wheel 52 drives the connecting tube 41 to continuously rotate around the transverse tube 10, so that all the stirring rods 42 rotate around the rotating tube 3 at the same time, all the stirring rods 42 continuously rotate around the transverse tube 10, effectively increasing the stirring rate of the stirring rods 42.

[0057] In the embodiment of the present invention, as a preferred embodiment of the present invention, the drainage mechanism 6 includes a rotating shaft 61, blades 62 and a filter assembly 63;

[0058] The rotating shaft 61 is fixedly connected to the inner end surface of the connecting cylinder 41. The rotating shaft 61 is spirally provided with blades 62. The filtering assembly 63 can filter impurities.

[0059] The connecting tube 41 drives the rotating shaft 61 to rotate, and the rotating shaft 61 drives the blades 62 to rotate relative to the horizontal tube 10. The blades 62 are spirally arranged relative to the rotating shaft 61, so the blades 62 discharge the wastewater in the shell 1 into the rotating pipe 3, and then the filter component 63 filters and collects the flocculent precipitation.

[0060] In the embodiment of the present invention, as a preferred embodiment of the present invention, the filter assembly 63 includes a filter box 631, a filter screen plate 632 and a nozzle 633;

[0061] The rotating pipe 3 is connected to a filter box 631 , in which a filter screen plate 632 is fixedly installed. The filter box 631 is connected to multiple nozzles 633 .

[0062] In the filter assembly 63 , wastewater enters the filter box 631 through the rotating pipe 3 , and then is filtered by the filter screen 632 . The water flows through the nozzle 633 and re-enters the housing 1 to continue reacting with the precipitant.

[0063] In the embodiment of the present invention, as a preferred embodiment of the present invention, the pneumatic mechanism 7 includes a guide seat 71, a movable seat 72, a spring 73 and a spring baffle 74;

[0064] The guide seat 71 is fixedly connected to the inner wall of the rotating sleeve 2, the movable seat 72 is vertically slidably connected to the rotating tube 3, and the movable seat 72 is sealed to the inner wall of the rotating tube 3, the spring baffle 74 is fixedly connected to the rotating tube 3, and the spring 73 is arranged between the movable seat 72 and the spring baffle 74. The guide seat 71 and the movable seat 72 are both provided with a socket in an annular shape, and the sockets of the movable seat 72 and the guide seat 71 are engaged with each other.

[0065] The rotating tube 3 drives the movable seat 72 to rotate, and the sockets of the movable seat 72 and the guide seat 71 are engaged with each other, so the movable seat 72 slides relative to the guide seat 71, and the movable seat 72 moves vertically upward along the rotating tube 3. Therefore, the air pressure between the movable seat 72 and the guide seat 71 is reduced, the one-way water inlet valve 12 is opened, and the waste water in the shell 1 enters the rotating tube 3 through the scraper 11. The screen adsorbs and filters the flocculent precipitation. Then, under the push of the spring 73, the movable seat 72 moves vertically downward along the rotating tube 3, the air pressure between the movable seat 72 and the guide seat 71 is increased, the one-way water outlet valve 13 is opened, and the water flow re-enters the shell 1 to continue reacting with the precipitant.

[0066] In the embodiment of the present invention, as a preferred embodiment of the present invention, the driving mechanism 8 includes a motor 81, a gear transmission pair 82 and a belt transmission pair 83;

[0067] The motor 81 is fixedly connected to the housing 1 , a belt transmission pair 83 is provided between the output shaft of the motor 81 and the rotating sleeve 2 , and a gear transmission pair 82 is provided between the output shaft of the motor 81 and the rotating tube 3 .

[0068] In the driving mechanism 8 , the motor 81 drives the rotating tube 3 to rotate via the gear transmission pair 82 , and at the same time, the output shaft of the motor 81 drives the rotating sleeve 2 to rotate via the belt transmission pair 83 .

[0069] In the embodiment of the present invention, as a preferred embodiment of the present invention, the drug dispensing assembly 9 includes a discharge pipe 91, a spray pipe 92 and a drug box 93;

[0070] The medicine box 93 is fixedly connected to the housing 1 , the discharge pipe 91 is communicated with the medicine box 93 , the spray pipe 92 is rotatably connected to the discharge pipe 91 , and the spray pipe 92 is fixedly connected to the rotating pipe 3 .

[0071] In the medicine dispensing assembly 9 , the rotating pipe 3 drives the spraying pipe 92 to rotate, and the spraying pipe 92 sprays the precipitant in the medicine box 93 .

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0073] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A wastewater treatment device for wet comprehensive recovery, comprising a housing (1), characterized in that: Also includes: A rotating sleeve (2) is rotatably connected to the housing (1); a rotating tube (3) is rotatably connected to the rotating sleeve (2); the rotating tube (3) is fixedly connected to a transverse tube (10); the transverse tube (10) is rotatably connected to a stirring mechanism (4); the stirring mechanism (4) is capable of synchronously moving with the rotating tube (3); a linkage mechanism (5) is provided between the stirring mechanism (4) and the rotating sleeve (2); the linkage mechanism (5) is capable of driving the stirring mechanism (4) to rotate around the transverse tube (10); A drainage mechanism (6) is provided in the transverse pipe (10) and the rotating pipe (3), and the drainage mechanism (6) is capable of filtering and collecting impurities in the wastewater; The rotating sleeve (2) is fixedly connected to a scraper (11), the scraper (11) abuts against the inner wall of the outer shell (1), a water inlet is provided on the surface of the scraper (11) abutting against the inner wall of the outer shell (1), a one-way water inlet valve (12) is provided at the water inlet, and a one-way water outlet valve (13) is provided on the rotating sleeve (2); An air pressure mechanism (7) is provided between the rotating sleeve (2) and the rotating tube (3), and the air pressure mechanism (7) is capable of adsorbing flocculent sediment near the inner wall of the outer shell (1); A driving mechanism (8) is provided between the rotating sleeve (2) and the rotating tube (3), and the driving mechanism (8) can drive the rotating sleeve (2) and the rotating tube (3) to rotate in opposite directions; The rotating tube (3) is connected to a medicine dispensing component (9), and the medicine dispensing component (9) is capable of spraying medicine into the housing (1).

2. The wastewater treatment device for wet comprehensive recovery according to claim 1, characterized in that: The stirring mechanism (4) comprises a connecting tube (41) and stirring rods (42); the connecting tube (41) is rotatably connected to the transverse tube (10); a plurality of stirring rods (42) are connected to the connecting tube (41); and the connecting tube (41) is in communication with the outside.

3. The wastewater treatment device for wet comprehensive recovery according to claim 2, characterized in that: The linkage mechanism (5) comprises a gear plate (51) and a transmission wheel (52), wherein the gear plate (51) is fixedly connected to the rotating sleeve (2), the transmission wheel (52) is fixedly connected to the connecting cylinder (41), and the gear plate (51) and the transmission wheel (52) are meshed.

4. The wastewater treatment device for wet comprehensive recovery according to claim 2, characterized in that: The drainage mechanism (6) comprises a rotating shaft (61), blades (62) and a filter assembly (63); The rotating shaft (61) is fixedly connected to the inner end surface of the connecting cylinder (41); the rotating shaft (61) is spirally provided with blades (62); and the filtering assembly (63) is capable of filtering impurities.

5. The wastewater treatment device for wet comprehensive recovery according to claim 4, characterized in that: The filter assembly (63) includes a filter box (631), a filter screen (632), and a nozzle (633); The rotating pipe (3) is connected to a filter box (631), a filter screen plate (632) is fixedly provided in the filter box (631), and the filter box (631) is connected to a plurality of nozzles (633).

6. The wastewater treatment device for wet comprehensive recovery according to claim 1, characterized in that: The pneumatic mechanism (7) includes a guide seat (71), a movable seat (72), a spring (73) and a spring baffle (74); The guide seat (71) is fixedly connected to the inner wall of the rotating sleeve (2), the movable seat (72) is vertically slidably connected to the rotating tube (3), and the movable seat (72) is sealedly connected to the inner wall of the rotating tube (3), the spring baffle (74) is fixedly connected to the rotating tube (3), the spring (73) is arranged between the movable seat (72) and the spring baffle (74), the guide seat (71) and the movable seat (72) are both provided with a socket in an annular shape, and the sockets of the movable seat (72) and the guide seat (71) are engaged with each other.

7. The wastewater treatment device for wet comprehensive recovery according to claim 1, characterized in that: The driving mechanism (8) includes a motor (81), a gear transmission pair (82) and a belt transmission pair (83); The motor (81) is fixedly connected to the housing (1), a belt transmission pair (83) is provided between the output shaft of the motor (81) and the rotating sleeve (2), and a gear transmission pair (82) is provided between the output shaft of the motor (81) and the rotating tube (3).

8. The wastewater treatment device for wet comprehensive recovery according to claim 1, characterized in that: The drug dispensing assembly (9) includes a discharge pipe (91), a spraying pipe (92) and a drug box (93); The medicine box (93) is fixedly connected to the housing (1), the discharge pipe (91) is communicated with the medicine box (93), the spray pipe (92) is rotatably connected to the discharge pipe (91), and the spray pipe (92) is fixedly connected to the rotating pipe (3).

9. A method for treating wastewater using a wet comprehensive recovery device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step ①: connecting the housing (1) to the wastewater pipe, starting the driving mechanism (8), the driving mechanism (8) drives the rotating tube (3) to rotate, and the rotating tube (3) drives the drug dispensing component (9) to rotate, thereby evenly spreading the precipitant into the wastewater in the housing (1); Step ②: The stirring mechanism (4) can move synchronously with the rotating tube (3), and at the same time, the rotating sleeve (2) rotates in the opposite direction relative to the rotating tube (3). The rotating sleeve (2) drives the stirring mechanism (4) to rotate around the horizontal tube (10) through the linkage mechanism (5), thereby accelerating the mixing of the precipitant and the wastewater; Step ③: the wastewater is mixed with the precipitant to generate flocculent precipitates, and the drainage mechanism (6) filters and collects impurities in the wastewater; Step ④: The rotating sleeve (2) drives the scraper (11) to scrape off the flocculent precipitates adhered to the inner wall of the shell (1). At this time, the air pressure mechanism (7) can adsorb the flocculent precipitates near the inner wall of the shell (1); thereby, the wastewater and the precipitant are quickly mixed to generate flocculent precipitates and the flocculent precipitates can be adsorbed at the same time.

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