Wastewater treatment device for formed foil production line

Abstract

The invention discloses a wastewater treatment device for a formed foil production line, which belongs to the technical field of wastewater treatment, and comprises a device body, an upper cover, a main shaft, a water inlet pipe and a water outlet pipe, the stirring assembly is used for stirring liquid in the device body; the vibrating and screening assembly is used for vibrating, blanking and screening the flocculating agent; the grinding assembly is used for grinding the flocculating agent; the driving assembly is used for driving the grinding assembly to grind the flocculating agent while driving the main shaft to rotate in the vertical direction or reciprocate linearly in the vertical direction, and comprises a motor, a first crown-shaped gear, a second crown-shaped gear, a rotating ring, a first elastic part, a ratchet wheel and a rotating ring; the flocculating agent can be ground and sieved, so that the contact surface of the flocculating agent and wastewater suspended matters is improved, and the wastewater precipitation efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater treatment device for a formed foil production line. Background Art

[0002] In the production process of chemical foil, wastewater treatment is an important link to ensure that environmental protection standards are met. At present, the commonly used treatment methods for industrial wastewater containing suspended matter and chemical substances include physical precipitation, chemical flocculation, etc. Traditional flocculation wastewater treatment devices usually use independent flocculant grinding, screening and stirring units to achieve flocculant addition and mixing through step-by-step operations. For example, in the prior art, the flocculant needs to be crushed to a certain particle size by grinding equipment in advance, then screened by a vibrating screen and put into the wastewater pool, and finally mixed with the wastewater by a stirring device. However, this type of segmented treatment has the following problems:

[0003] 1. The equipment is complex and occupies a large space: Grinding, screening and mixing require multiple devices to work together, resulting in cumbersome production line layout and high maintenance costs;

[0004] 2. Low efficiency: Step-by-step operation prolongs the treatment cycle, and the uneven size of flocculant particles may affect the dissolution rate and reduce the flocculation effect.

[0005] In addition, some integrated equipment attempts to combine grinding and stirring functions, but their drive structures are mostly split designs, relying on multiple motors or transmission mechanisms, which can easily lead to increased energy consumption and mechanical failures. For example, some devices use a horizontal axis to drive stirring, while the vibrating screen requires an additional power source, resulting in insufficient system coordination and difficulty in achieving efficient synchronization.

[0006] In view of the above problems, there is an urgent need for a wastewater treatment device with compact structure, integrated functions and improved flocculation efficiency. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a wastewater treatment device for a formed foil production line, which solves the above-mentioned problems.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A wastewater treatment device for a formed foil production line, comprising a device body and an upper cover, wherein the upper cover is detachably mounted on the device body, and further comprising:

[0009] Spindle;

[0010] A stirring assembly, mounted on the main shaft, for stirring the liquid in the device body;

[0011] The vibrating material screening component is installed on the main shaft and is used for vibrating and screening the flocculant;

[0012] A grinding assembly, mounted on the device body, for grinding the flocculant;

[0013] A driving assembly is installed on the device body and the upper cover, and is used to drive the main shaft to perform a rotational motion in the vertical direction or a reciprocating linear motion in the vertical direction, and at the same time drive the grinding assembly to grind the flocculant;

[0014] Among them, the driving assembly includes a motor, a first crown gear, a second crown gear, a rotating ring, a first elastic member, a ratchet and a rotating ring. The motor is detachably mounted on the upper cover, the first crown gear is fixedly connected to the output shaft of the motor, the second crown gear is rotatably connected to a cylinder mounted on the device body, the first crown gear is meshed with the second crown gear, the lower end of the second crown gear is fixedly connected to the main shaft, the ratchet is limitedly slidably arranged on the main shaft, the ratchet is mounted on the bottom of the cylinder, the lower end of the second crown gear and the lower end of the cavity of the cylinder are rotatably connected to the rotating ring, and a first elastic member is arranged between the two ratchet wheels, with both ends fixedly connected to the two ratchet wheels accordingly.

[0015] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0016] Further technical solution: the vibrating material screening assembly includes a sieve plate, a first support frame, a limit stop ring, a push rod and an elastic support column. The inner arc circle of the sieve plate fits the outer circle of the cylinder, and the outer arc circle of the first support frame fits the inner wall of the device body. The sieve plate slides relative to the cylinder and the device body. The two ends of the elastic support column are respectively fixedly connected to the sieve plate and the support plate fixedly arranged in the device body. The first support frame is rotatably connected to the main shaft. The two limit stop rings are symmetrically arranged on the upper and lower sides of the first support frame. The limit stop ring is rotatably connected to the main shaft, and the two ends of the push rod are respectively fixedly connected to the sieve plate and the first support frame.

[0017] Further technical solution: The grinding assembly includes a first grinding disc and a second grinding disc, the second grinding disc is sleeved on the first crown gear and fixedly connected to the first crown gear, and the first grinding disc is embedded in the device body and fixedly connected to the device body.

[0018] Further technical solution: the stirring assembly includes a second support frame and a stirring rod, the second support frame is fixedly connected to the lower end of the main shaft, and the stirring rod is fixedly connected to the second support frame.

[0019] Further technical solution: The distance traveled by the reciprocating linear motion is the sum of the tooth height of the first crown gear and the tooth height of the second crown gear.

[0020] Further technical solution: the elastic support column includes a slide and a support column, the lower end of the slide is fixedly connected to the screen plate, the upper end of the support column is fixedly connected to the support plate, the lower end of the support column extends into the slide and slides with the slide, the second elastic member is embedded in the slide and its two ends are fixedly connected to the slide and the support column accordingly.

[0021] Further technical solution: a grinding channel is provided between the first grinding disc and the second grinding disc, and the inner ring of the first grinding disc and the outer ring of the second grinding disc are both provided with groove patterns that make the inner ring of the first grinding disc and the outer ring of the second grinding disc rough.

[0022] Further technical solution: A slot is provided on the device body, and a baffle for blocking the sieve plate is inserted into the slot.

[0023] Further technical solution: The method for treating wastewater by the wastewater treatment device of the above-mentioned formed foil production line comprises the following steps:

[0024] S1. Introduce wastewater into the device body and introduce flocculant onto the grinding assembly;

[0025] S2, at this time, the motor is started to drive the first crown gear to reverse, and at this time, the beveled edge of the teeth of the first crown gear and the beveled edge of the teeth of the second crown gear are subjected to force. At the same time, the second crown gear is elastically supported by the first elastic member, and the first crown gear can drive the second crown gear to drive the main shaft to perform reciprocating linear motion in the vertical direction, and then the main shaft drives the vibration screening assembly to move, and the main shaft drives the first support frame to drive the push rod to perform linear motion in the vertical direction through the limit ring, and the first support frame drives the screen plate to perform linear reciprocating motion in the vertical direction, and then the flocculant on the screen plate that has been ground by the grinding assembly is vibrated and discharged and screened, so that the screened flocculant particles enter the device body;

[0026] S3. At this time, the motor drives the first crown gear to rotate forward in the vertical direction. At this time, the right-angled sides of the teeth of the first crown gear and the right-angled sides of the teeth of the second crown gear are subjected to force. At this time, the first crown gear pushes the second crown gear to drive the main shaft to rotate forward in the vertical direction. The main shaft drives the stirring component to stir the liquid in the device body, so that the flocculant is quickly and evenly dissolved in the wastewater in the device body. During the period when the motor drives the first crown gear to rotate forward, the baffle passes through the slot to cause the baffle to be located above the sieve plate. At this time, the grinding component continues to work under the drive of the first crown gear to continuously grind the flocculant, and the ground flocculant falls above the baffle to prepare for the next flocculant input.

[0027] The present invention provides a wastewater treatment device for a formed foil production line, which has the following beneficial effects compared with the prior art:

[0028] 1. In the present invention, the first crown gear can be driven to reverse by starting the motor. At this time, the beveled edge of the teeth of the first crown gear and the beveled edge of the teeth of the second crown gear are subjected to force. At the same time, the second crown gear is elastically supported by the first elastic member. The first crown gear can drive the second crown gear to drive the main shaft to perform reciprocating linear motion in the vertical direction, and then the main shaft drives the vibration screening assembly to move. The main shaft drives the first support frame to drive the push rod to perform linear motion in the vertical direction through the limit ring. The first support frame drives the screen plate to perform linear reciprocating motion in the vertical direction, and then the flocculant on the screen plate that has been ground by the grinding assembly is vibrated and discharged and screened, so that the screened flocculant enters the device body with a specific particle size (the maximum particle diameter is smaller than the sieve hole of the sieve plate), increases the contact area between the flocculant and the suspended matter in the wastewater, and increases the flocculation efficiency of the suspended matter in the wastewater;

[0029] 2. In the present invention, the first crown gear can be driven by a motor to rotate forward in the vertical direction. At this time, the right-angled sides of the teeth of the first crown gear and the right-angled sides of the teeth of the second crown gear are subjected to force. At this time, the first crown gear pushes the second crown gear to drive the main shaft to rotate forward in the vertical direction. The main shaft drives the stirring component to stir the liquid in the device body, so that the flocculant is quickly and evenly dissolved in the wastewater in the device body. During the period when the motor drives the first crown gear to rotate forward, the baffle passes through the slot to cause the baffle to be located above the sieve plate. At this time, the grinding component continues to work under the drive of the first crown gear to continuously grind the flocculant, and the ground flocculant falls above the baffle to prepare for the next flocculant input. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0031] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 3 It is a schematic diagram of the position structure of the vibrating material screening component of the present invention.

[0033] Figure 4 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0034] Figure 5 For the present invention Figure 3 A-section structure enlarged schematic diagram.

[0035] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of part B.

[0036] Figure 7 For the present invention Figure 4 An enlarged schematic diagram of the C-section structure.

[0037] Figure 8 It is a schematic structural diagram of the elastic support column of the present invention.

[0038] Notes on figure numbers: 1. Device body; 2. Upper cover; 3. Driving assembly; 301. Motor; 302. First crown gear; 303. Second crown gear; 304. Rotating ring; 305. First elastic member; 306. Ratchet; 4. Vibrating material screening assembly; 401. Screen plate; 402. First support frame; 403. Limiting ring; 404. Push rod; 405. Elastic supporting column; 4051. Slide; 4052. Support column; 4053. Second elastic member; 5. Main shaft; 6. Stirring assembly; 601. Second support frame; 602. Stirring rod; 7. Grinding assembly; 701. First grinding disc; 702. Second grinding disc. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] See also Figures 1 to 8 , provided in one embodiment of the present invention, is a wastewater treatment device for a formed foil production line, comprising a device body 1 and an upper cover 2, wherein the upper cover 2 is detachably mounted on the device body 1, and further comprising:

[0042] Spindle 5;

[0043] A stirring assembly 6, mounted on the main shaft 5, for stirring the liquid in the device body 1;

[0044] The vibrating material screening component 4 is installed on the main shaft 5 and is used for vibrating and screening the flocculant;

[0045] A grinding assembly, mounted on the device body 1, for grinding the flocculant;

[0046] The driving assembly 3 is installed on the device body 1 and the upper cover 2, and is used to drive the main shaft 5 to perform a rotational motion in the vertical direction or a reciprocating linear motion in the vertical direction, and at the same time drive the grinding assembly to grind the flocculant;

[0047] The driving assembly 3 includes a motor 301, a first crown gear 302, a second crown gear 303, a rotating ring 304, a first elastic member 305, a ratchet 306 and a rotating ring 304. The motor 301 is detachably mounted on the upper cover 2. The first crown gear 302 is fixedly connected to the output shaft of the motor 301. The second crown gear 303 is rotatably connected to a cylinder (not shown) mounted on the device body 1. The first crown gear 302 is meshed with the second crown gear 303. The lower end of the second crown gear 303 is fixedly connected to the main shaft 5. The ratchet 306 is limitedly slidably arranged on the main shaft 5. The ratchet 306 is mounted on the bottom of the cylinder. The lower end of the second crown gear 303 and the lower end of the cavity of the cylinder are both rotatably connected to the rotating ring 304. A first elastic member 305 whose two ends are fixedly connected to the two ratchet wheels 306 is arranged between the two ratchet wheels 306. The motor 301 drives the first crown gear 302 to vertically rotate. The first crown gear 302 rotates forward in the vertical direction. At this time, the right-angled sides of the teeth of the first crown gear 302 and the right-angled sides of the teeth of the second crown gear 303 are subjected to force. At this time, the first crown gear 302 pushes the second crown gear 303 to drive the main shaft 5 to rotate forward in the vertical direction. The main shaft 5 drives the stirring component 6 to stir the liquid in the device body 1. When the motor 301 drives the first crown gear 302 to rotate in the opposite direction, the beveled sides of the teeth of the first crown gear 302 and the beveled sides of the teeth of the second crown gear 303 are subjected to force. At the same time, the second crown gear 303 is elastically supported by the first elastic member 305. The first crown gear 302 can drive the second crown gear 303 to drive the main shaft 5 to perform reciprocating linear motion in the vertical direction (the distance travel of the reciprocating linear motion is the sum of the tooth height of the first crown gear 302 and the tooth height of the second crown gear 303), and then the main shaft 5 drives the vibration screening component to move, thereby vibrating and discharging the flocculant to be introduced into the liquid and screening it.

[0048] See also Figure 4 as well as Figure 6 Preferably, the stirring assembly 6 includes a second support frame 601 and a stirring rod 602, the second support frame 601 is fixedly connected to the lower end of the main shaft 5, and the stirring rod 602 is fixedly connected to the second support frame 601. The purpose of this arrangement is to use the driving assembly 3 to drive the main shaft 5 to rotate in the vertical direction, and then use the main shaft 5 to drive the second support frame 601 to drive the stirring rod 602 to move in a circular motion trajectory in the device body 1, thereby stirring the liquid in the device body 1 and prompting the flocculant to dissolve quickly and evenly in the wastewater in the device body 1.

[0049] See also Figure 2 , Figure 3 as well as Figure 5Preferably, the vibrating material screening assembly 4 includes a sieve plate 401, a first support frame 402, a limit ring 403, a push rod 404 and an elastic support column 405. The inner arc circle of the sieve plate 401 fits the outer circle of the cylinder, the outer arc circle of the first support frame 402 fits the inner wall of the device body 1, the sieve plate 401 slides relative to the cylinder and the device body 1, the two ends of the elastic support column 405 are respectively fixedly connected to the sieve plate 401 and a support plate (not shown in the figure) fixedly arranged in the device body 1, the first support frame 402 is rotatably connected to the main shaft 5, and the two limit rings 403 are symmetrically arranged. It is arranged on the upper and lower sides of the first support frame 402, the limit stop ring 403 is rotatably connected to the main shaft 5, and the two ends of the push rod 404 are respectively fixedly connected to the screen plate 401 and the first support frame 402. The driving component 3 drives the main shaft 5 to perform reciprocating linear motion in the vertical direction. At this time, the main shaft 5 pushes the first support frame 402 through the limit stop ring 403 to drive the push rod 404 to perform linear motion in the vertical direction. The first support frame 402 pushes the screen plate 401 to perform linear reciprocating motion in the vertical direction, thereby vibrating and discharging and screening the flocculant on the screen plate 401 that has been ground by the grinding component.

[0050] Preferably, the elastic support column 405 includes a slide 4051 and a support column 4052, the lower end of the slide 4051 is fixedly connected to the screen plate 401, the upper end of the support column 4052 is fixedly connected to the support plate, the lower end of the support column 4052 extends into the slide 4051 and slidably cooperates with the slide 4051, the second elastic member 4053 is embedded in the slide 4051 and the two ends are fixedly connected to the slide 4051 and the support column 4052 respectively. The purpose of this arrangement is to utilize the mutual cooperation of the slide 4051, the support column 4052 and the second elastic member 4053 to enable the screen plate 401 to have floating space for floating in the vertical direction.

[0051] See also Figure 2 as well as Figure 7Preferably, the grinding assembly includes a first grinding disc 701 and a second grinding disc 702, the second grinding disc 702 is sleeved on the first crown gear 302 and fixedly connected to the first crown gear 302, the first grinding disc 701 is embedded in the device body 1 and fixedly connected to the device body 1, a grinding channel is arranged between the first grinding disc 701 and the second grinding disc 702, the inner ring of the first grinding disc 701 and the outer ring of the second grinding disc 702 are both provided with groove patterns (not marked in the figure) that make the inner ring of the first grinding disc 701 and the outer ring of the second grinding disc 702 rough, the motor 301 drives the first crown gear 302 to drive the second grinding disc 702 to rotate in the vertical direction, thereby causing the second grinding disc 702 to rotate relative to the first grinding disc 701, so as to realize the grinding treatment of the flocculant entering the grinding channel, thereby increasing the contact area between the flocculant and the suspended matter in the wastewater, and increasing the flocculation efficiency of the suspended matter in the wastewater.

[0052] Preferably, a slot (not shown in the figure) is provided on the device body 1 , and a baffle (not shown in the figure) is inserted into the slot for blocking the sieve plate 401 . The purpose of this arrangement is to prevent excess flocculant from being introduced into the device body 1 through the sieve plate 401 .

[0053] In the embodiment of the present invention, relevant technicians introduce wastewater into the device body 1 and introduce flocculant into the top of the grinding component. At this time, the motor 301 is started to drive the first crown gear 302 to reverse. At this time, the beveled edge of the teeth of the first crown gear 302 and the beveled edge of the teeth of the second crown gear 303 are subjected to force. At the same time, the second crown gear 303 is elastically supported by the first elastic member 305. The first crown gear 302 can drive the second crown gear 303 to drive the main shaft 5 to perform reciprocating linear motion in the vertical direction, and then the main shaft 5 drives the vibration screening component to move. The main shaft 5 pushes the first support frame 402 through the limit ring 403 to drive the push rod 404 to perform linear motion in the vertical direction. The first support frame 402 pushes the screen plate 401 to perform linear reciprocating motion in the vertical direction, and then the flocculant ground by the grinding component on the screen plate 401 is vibrated and discharged. And screening treatment, so that the screened flocculant particles enter the device body 1, at this time, the motor 301 drives the first crown gear 302 to rotate forward in the vertical direction, at this time, the right-angled side of the teeth of the first crown gear 302 and the right-angled side of the teeth of the second crown gear 303 are subjected to force, at this time, the first crown gear 302 pushes the second crown gear 303 to drive the main shaft 5 to rotate forward in the vertical direction, and the main shaft 5 drives the stirring component 6 to stir the liquid in the device body 1, so that the flocculant is quickly and evenly dissolved in the wastewater located in the device body 1. During the period when the motor 301 drives the first crown gear 302 to rotate forward, the baffle passes through the slot to cause the baffle to be located above the sieve plate 401. At this time, the grinding component continues to work under the drive of the first crown gear 302 to continuously grind the flocculant, and the ground flocculant falls above the baffle to prepare for the next flocculant input.

[0054] It should be noted that, in this article, relational terms such as A and B are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for a formed foil production line, comprising a device body (1) and an upper cover (2), wherein the upper cover (2) is detachably mounted on the device body (1), characterized in that: Also includes: Spindle (5); A stirring assembly (6), mounted on the main shaft (5), for stirring the liquid in the device body (1); A vibrating material screening component (4) is mounted on the main shaft (5) and is used for vibrating and screening the flocculant; A grinding assembly, mounted on the device body (1), for grinding the flocculant; A driving assembly (3) is mounted on the device body (1) and the upper cover (2), and is used to drive the main shaft (5) to perform a rotational motion in the vertical direction or a reciprocating linear motion in the vertical direction, and at the same time drive the grinding assembly to grind the flocculant, comprising a motor (301), a first crown gear (302), a second crown gear (303), a rotating ring (304), a first elastic member (305) and a ratchet (306), wherein the motor (301) is detachably mounted on the upper cover (2), the first crown gear (302) is fixedly connected to the output shaft of the motor (301), and the second crown gear (303) is (303) is rotatably connected to a cylinder mounted on the device body (1); the first crown gear (302) is meshed with the second crown gear (303); the lower end of the second crown gear (303) is fixedly connected to the main shaft (5); the ratchet (306) is limitedly slidably arranged on the main shaft (5); the ratchet (306) is mounted on the bottom of the cylinder; the lower end of the second crown gear (303) and the lower end of the cavity of the cylinder are both rotatably connected to a rotating ring (304); and a first elastic member (305) is arranged between the two ratchet wheels (306) at both ends of which are fixedly connected to the two ratchet wheels (306) accordingly.

2. The wastewater treatment device for a chemical foil production line according to claim 1, characterized in that: The vibrating material screening assembly (4) comprises a sieve plate (401), a first support frame (402), a limit stop ring (403), a push rod (404) and an elastic support column (405); the inner arc circle of the sieve plate (401) fits the outer circle of the cylinder; the outer arc circle of the first support frame (402) fits the inner wall of the device body (1); the sieve plate (401) is slidably matched with the cylinder and the device body (1); the two ends of the elastic support column (405) are respectively fixedly connected to the sieve plate (401) and a support plate fixedly arranged in the device body (1); the first support frame (402) is rotatably connected to the main shaft (5); the two limit stop rings (403) are symmetrically arranged on the upper and lower sides of the first support frame (402); the limit stop ring (403) is rotatably connected to the main shaft (5); and the two ends of the push rod (404) are respectively fixedly connected to the sieve plate (401) and the first support frame (402).

3. The wastewater treatment device for the chemical foil production line according to claim 2 is characterized in that: The grinding assembly comprises a first grinding disc (701) and a second grinding disc (702); the second grinding disc (702) is sleeved on the first crown gear (302) and fixedly connected to the first crown gear (302); the first grinding disc (701) is embedded in the device body (1) and fixedly connected to the device body (1).

4. The wastewater treatment device for a chemical foil production line according to claim 1, characterized in that: The stirring assembly (6) comprises a second support frame (601) and a stirring rod (602); the second support frame (601) is fixedly connected to the lower end of the main shaft (5); and the stirring rod (602) is fixedly connected to the second support frame (601).

5. The wastewater treatment device for a chemical foil production line according to claim 1, characterized in that: The distance traveled by the reciprocating linear motion is the sum of the tooth height of the first crown gear (302) and the tooth height of the second crown gear (303).

6. The wastewater treatment device for a chemical foil production line according to claim 2, characterized in that: The elastic support column (405) includes a slide (4051) and a support column (4052), the lower end of the slide (4051) is fixedly connected to the screen plate (401), the upper end of the support column (4052) is fixedly connected to the support plate, the lower end of the support column (4052) extends into the slide (4051) and slides with the slide (4051), and the second elastic member (4053) is embedded in the slide (4051) and its two ends are fixedly connected to the slide (4051) and the support column (4052) respectively.

7. The wastewater treatment device for a chemical foil production line according to claim 1, characterized in that: A grinding channel is provided between the first grinding disc (701) and the second grinding disc (702), and the inner ring of the first grinding disc (701) and the outer ring of the second grinding disc (702) are both provided with groove patterns that make the inner ring of the first grinding disc (701) and the outer ring of the second grinding disc (702) rough.

8. The wastewater treatment device for a chemical foil production line according to claim 2, characterized in that: A slot is provided on the device body (1), and a baffle for blocking the sieve plate (401) is inserted into the slot.

9. The method for treating wastewater by the wastewater treatment device of the chemical foil production line according to claim 3, characterized in that: The following steps are involved: S1, introducing wastewater into the device body (1), and introducing flocculant above the grinding assembly; S2, at this time, the motor (301) is started to drive the first crown gear (302) to reverse, and at this time, the beveled edge of the teeth of the first crown gear (302) and the beveled edge of the teeth of the second crown gear (303) are subjected to force. At the same time, the second crown gear (303) is elastically supported by the first elastic member (305), and the first crown gear (302) can drive the second crown gear (303) to drive the main shaft (5) to perform reciprocating linear motion in the vertical direction, and then the main shaft (5) drives the vibration screening component to move, and the main shaft (5) drives the first support frame (402) to drive the push rod (404) to perform linear motion in the vertical direction through the limit stop ring (403), and the first support frame (402) pushes the screen plate (401) to perform linear reciprocating motion in the vertical direction, and then the flocculant on the screen plate (401) that has been ground by the grinding assembly is vibrated and discharged and screened, so that the screened flocculant particles enter the device body (1); S3, at this time, the motor (301) drives the first crown gear (302) to rotate forward in the vertical direction. At this time, the right-angled side of the teeth of the first crown gear (302) and the right-angled side of the teeth of the second crown gear (303) are subjected to force. At this time, the first crown gear (302) pushes the second crown gear (303) to drive the main shaft (5) to rotate forward in the vertical direction. The main shaft (5) drives the stirring component (6) to stir the liquid in the device body (1), so that the flocculant is quickly and evenly dissolved in the wastewater in the device body (1). During the period when the motor (301) drives the first crown gear (302) to rotate forward, the baffle passes through the slot to cause the baffle to be located above the sieve plate (401). At this time, the grinding component continues to work under the drive of the first crown gear (302) to grind the flocculant continuously, and the ground flocculant falls on the baffle to prepare for the next flocculant input.

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