Automobile painting waste liquid filtering and separation device

Abstract

The present invention relates to the technical field of solid-liquid separation, and discloses a vehicle painting waste liquid filtering and separation device, comprising: an outer filtering tank body, a filtering mechanism and a separating mechanism, wherein the filtering mechanism and the separating mechanism are both arranged in the outer filtering tank body, the filtering mechanism is used to separate and filter solid impurities in the vehicle painting waste liquid, and the separating mechanism is used to separate and process the oily paint and water-based paint in the vehicle painting waste liquid. The present invention provides a separating mechanism, which can physically absorb the oily paint alone by using a flexible material having lipophilicity and hydrophobicity as an absorbent, and can effectively absorb the oily paint quickly by only controlling the lifting and rotating actions of the absorbent, which not only realizes the complete separation of the oily paint and the water-based paint, but also the absorption method is easy to implement, and does not require excessive intelligent regulation, so it is suitable for wide promotion and use.

Description

Technical Field

[0001] The invention relates to the technical field of solid-liquid separation, and more specifically, to a filtering and separating device for automobile painting waste liquid. Background Art

[0002] During the automobile painting process, some painting waste liquid will be generated, and these waste liquids contain solid impurities, oily paint, water-based paint and water. Since the paint contains a large amount of harmful substances, it cannot be discharged directly, so these painting waste liquids need to be harmlessly treated. The main content of this harmless treatment is to separate the oily paint and water-based paint so that the waste liquid meets the emission standards. The separated oily paint and water-based paint can be recycled after further treatment.

[0003] At present, the processing process of the existing automobile painting waste liquid filtering and separation device is to first perform a preliminary filtration of solid impurities in the waste liquid, and then use the different density characteristics of oily paint and water-based paint to promote the formation of stratification between the two in a short time by shaking the waste liquid, and then extract the oily paint located in the upper layer by suction, so as to complete the preliminary separation of the oily paint and the water-based paint. However, when the oily paint is sucked near the water-based paint position, due to the small amount of oily paint at this time, it is easy to suck the water-based paint together during the suction process. In order to avoid this situation, one option is to accurately control the suction force and position regulation of the suction end, which requires a high degree of intelligence of the filtering and separation device and is difficult to be widely promoted and used. Another option is to stop the suction operation when the suction is near the water-based paint position, which will cause the oily paint and the water-based paint to be separated incompletely, increasing the difficulty of subsequent further processing. Therefore, there is an urgent need for an automobile painting waste liquid filtering and separation device that can effectively separate oily paint and water-based paint and is more suitable for widespread application and promotion. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle painting waste liquid filtering and separation device to solve the above-mentioned technical problems.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] The present invention provides a vehicle painting waste liquid filtering and separation device, comprising: an outer filtering tank body, a filtering mechanism and a separating mechanism, wherein the filtering mechanism and the separating mechanism are both arranged in the outer filtering tank body, the filtering mechanism is used to separate and filter solid impurities in the vehicle painting waste liquid, and the separating mechanism is used to separate and process oily paint and water-based paint in the vehicle painting waste liquid;

[0007] The separation mechanism comprises a separation cylinder, an absorption separation assembly, a reciprocating drive assembly and a drainage pipeline assembly, wherein the absorption separation assembly is arranged at the top of the separation cylinder, the driving end of the reciprocating drive assembly is connected to the bottom of the separation cylinder, and is used to drive the separation cylinder to perform linear up and down reciprocating motion in the outer filter tank body, and the drainage pipeline assembly is arranged at the bottom of the separation cylinder;

[0008] The absorption and separation component includes an extrusion member, a telescopic member fixedly mounted on the top of the separation cylinder, and an absorption member arranged on the inner top of the separation cylinder. The absorption member is made of a flexible material that is oleophilic and hydrophobic. The telescopic end of the telescopic member is fixedly connected to the absorption member. The absorption member is driven by the telescopic member to perform lifting and rotating movements in the separation cylinder to separately absorb the oily paint located on the upper layer. After the absorption member descends and contacts the inner bottom wall of the separation cylinder, the extrusion member generates downward pressure on the absorption member to squeeze out the oily paint in the absorption member.

[0009] As a further optimization solution of the present invention, the absorbent comprises a cylindrical connector, and a plurality of long strip absorbents are evenly connected to the outer peripheral side of the connector, and both the connector and the absorbent are made of oleophilic and hydrophobic sponge materials.

[0010] As a further optimization scheme of the present invention, the telescopic part includes an electric push rod, a spiral rod and a mating shaft body. The fixed end of the electric push rod is fixed to the top of the separation cylinder, the top end of the electric push rod slides upward and passes through the top of the outer filter tank body, the bottom end of the spiral rod slides from the top of the separation cylinder to the inner side of the separation cylinder, and is finally fixed to the absorption part. The top end of the spiral rod is rotatably connected to the telescopic end of the electric push rod, and the mating shaft body is fixedly installed on the top of the separation cylinder, and the end of the mating shaft body is slidably mated with the spiral groove on the spiral rod.

[0011] As a further optimization scheme of the present invention, the extrusion member includes an extrusion part and a pushing part. The extrusion part is rotatably arranged on the top of the absorber, and the pushing part is fixedly installed on the bottom of the inner side of the separation cylinder. When the extrusion part moves downward and contacts the pushing part, the pushing part pushes the extrusion part to movably cover the top surface of the absorber. When the bottom of the absorber contacts the inner bottom wall of the separation cylinder, the extrusion part generates downward pressure on the absorber to squeeze out the oily paint inside it.

[0012] As a further optimization scheme of the present invention, the extrusion part includes a connecting plate, a rotating plate, a torsion spring and a cover plate with the same number as the absorbers, the bottom of the connecting plate is fixedly connected to the top surface of the connecting body, and the top is fixedly connected to the bottom end of the spiral rod, the rotating plate is rotatably installed on the top of the connecting plate, the torsion spring is fixedly installed between the rotating plate and the connecting plate, several cover plates are circumferentially evenly distributed on the outside of the connecting plate, and each cover plate is correspondingly arranged between two absorbers, several cover plates are provided with several linearly evenly distributed water outlet holes on the top, the pushing part includes push plates with the same number as the cover plates, several push plates are fixedly installed on the bottom of the inner side of the separation cylinder, and several push plates are distributed one-to-one with several cover plates, and the top of the push plate is provided with an inclined slope.

[0013] As a further optimization scheme of the present invention, a plurality of limiting pulleys are evenly distributed on the outer circumference of the separation cylinder, a limiting guide rail compatible with the limiting pulley is fixedly installed on the inner wall of the outer filter tank body, and the plurality of limiting pulleys are in rolling contact with the limiting guide rail.

[0014] As a further optimization scheme of the present invention, the reciprocating drive assembly includes a drive motor, a crankshaft and two pulleys. The drive motor is fixedly mounted on the inner bottom wall of the outer filter tank body, the crankshaft is rotatably connected to the bottom wall of the outer filter tank body, the bottom of the separation cylinder is rotatably connected to the middle part of the crank, the two pulleys are respectively fixedly connected to the rotating end of the drive motor and the end of the crank, and the two pulleys are connected by a transmission belt.

[0015] As a further optimization scheme of the present invention, the drainage pipe assembly includes two drainage pipes with telescopic function, one end of the two drainage pipes is connected to the bottom of the separation cylinder, and the other end extends to the outside of the outer filter tank body, and one end of the two drainage pipes is provided with a control valve.

[0016] As a further optimization solution of the present invention, the liquid discharge pipe assembly further includes an induction switch, which is mounted on the inner bottom wall of the separation cylinder and is electrically connected to one of the control valves.

[0017] As a further optimization scheme of the present invention, the filtering mechanism includes a filter bucket and a liquid inlet pipe with an extension function, the filter bucket is fixedly installed on the top of the separation cylinder, the drain outlet at the bottom of the filter bucket is connected to the top of the separation cylinder, the liquid inlet pipe is fixedly installed on the outside of the outer filter tank body, and the top end of the liquid inlet pipe passes through the top of the outer filter tank body and is connected to the top of the filter bucket.

[0018] The beneficial effects of the present invention are:

[0019] The separation mechanism provided in the present invention adopts a flexible material with oleophilicity and hydrophobicity as an absorbent, which can physically absorb the oily paint separately. The oily paint can be quickly and effectively absorbed only by controlling the absorption member to perform lifting and rotating actions. Not only does it realize the complete separation of the oily paint and the water-based paint, but the absorption method is easy to implement and does not require excessive intelligent regulation. Therefore, it is suitable for wide promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of a vehicle painting waste liquid filtering and separation device provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a vehicle painting waste liquid filtering and separation device provided by the present invention;

[0022] Figure 3 It is a structural schematic diagram between an absorption separation component and a separation cylinder in a vehicle painting waste liquid filtering and separation device provided by the present invention;

[0023] Figure 4 This is a cross-sectional view of an absorption separation component and a separation cylinder in a vehicle painting waste liquid filtering and separation device provided by the present invention;

[0024] Figure 5 The present invention Figure 4 A local enlarged schematic diagram of the middle A;

[0025] Figure 6 It is a schematic diagram of the structure between an absorber, an extruder and a separation cylinder in a vehicle painting waste liquid filtering and separation device provided by the present invention;

[0026] Figure 7 It is a schematic structural diagram between an absorber and an extrusion part in a vehicle painting waste liquid filtering and separation device provided by the present invention;

[0027] Figure 8 It is a structural schematic diagram of a separation cylinder and a reciprocating drive assembly in a vehicle painting waste liquid filtering and separation device provided by the present invention;

[0028] Fig. 9 The present invention provides a cross-sectional view of a separation cylinder and an absorption separation component in a vehicle painting waste liquid filtering and separation device.

[0029] In the figure: 1. external filter tank; 2. filtering mechanism; 21. filtering bucket; 22. liquid inlet pipe; 3. separation mechanism; 31. separation cylinder; 32. absorption and separation assembly; 321. connecting body; 322. absorption body; 323. electric push rod; 324. spiral rod; 325. matching shaft; 326. connecting plate; 327. rotating plate; 328. torsion spring; 329. cover plate; 3210. water outlet; 3211. pushing plate; 33. reciprocating drive assembly; 331. driving motor; 332. crankshaft; 333. pulley; 34. drainage pipe assembly; 341. drainage pipe; 342. control valve; 343. induction switch; 35. limit pulley; 36. limit guide rail. DETAILED DESCRIPTION

[0030] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0031] Please refer to Figure 1 and Figure 2 A device for filtering and separating automobile painting waste liquid comprises: an outer filtering tank body 1, a filtering mechanism 2 and a separating mechanism 3, wherein the filtering mechanism 2 and the separating mechanism 3 are both arranged in the outer filtering tank body 1, the filtering mechanism 2 is used for separating and filtering solid impurities in automobile painting waste liquid, the separating mechanism 3 is used for separating and treating oily paint and water-based paint in automobile painting waste liquid, the separating mechanism 3 comprises a separating cylinder 31, an absorbing and separating component 32, a reciprocating driving component 33 and a drainage pipe component 34, the absorbing and separating component 32 is arranged at the top of the separating cylinder 31, and is used for absorbing the stratified oily paint separately, the driving end of the reciprocating driving component 33 is connected to the bottom of the separating cylinder 31, and is used for driving the separating cylinder 31 to perform up and down reciprocating motion in the outer filtering tank body 1, and the drainage pipe component 34 is arranged at the bottom of the separating cylinder 31. The absorption and separation component 32 includes an extrusion member, a telescopic member fixedly mounted on the top of the separation cylinder 31, and an absorption member arranged on the inner top of the separation cylinder 31. The absorption member is made of a flexible material that is oleophilic and hydrophobic. The telescopic end of the telescopic member is fixedly connected to the absorption member. After the oily paint and the water-based paint in the automobile painting waste liquid are separated, the absorption member is driven by the telescopic member to perform lifting and rotating movements in the separation cylinder 31 to separately absorb the oily paint on the upper layer. After the absorption member descends and contacts the inner bottom wall of the separation cylinder 31, the extrusion member generates downward pressure on the absorption member to squeeze out the oily paint in the absorption member.

[0032] It should be noted that when filtering the automobile painting waste liquid, the automobile painting waste liquid is transported from the outside of the outer filter tank body 1 to the filter mechanism 2, and the solid impurities in the automobile painting waste liquid are first filtered and separated by the filter mechanism 2, and then the automobile painting waste liquid enters the separation cylinder 31. After the automobile painting waste liquid reaches the maximum filling volume of the separation cylinder 31, the automobile painting waste liquid is stopped from being transported to the filter mechanism 2. At this time, the separation cylinder 31 is driven by the reciprocating drive component 33 to perform linear up and down reciprocating motion in the outer filter tank body 1, so that the automobile painting waste liquid in the separation cylinder 31 can be repeatedly shaken, which can promote the separation of oil-based paint and water-based paint in the automobile painting waste liquid. The layers are formed quickly. After the preset time is reached, the reciprocating drive assembly 33 stops driving, so that the separation cylinder 31 is reset and no longer active. After standing for a period of time, the oily paint and the water-based paint form layers. Due to the density characteristics of the oily paint, it is located above the water-based paint. Then, the oily paint is absorbed and separated separately. The absorbent is driven by the telescopic member to move downward and rotate synchronously, and the extrusion part moves downward and rotates synchronously with the absorbent. After the absorbent contacts the oily paint, due to the oleophilic and hydrophobic properties of the absorbent, the oily paint is directly absorbed. Through the rotation of the absorbent, the absorbent can be evenly contacted with the oily paint at different positions. And absorb it. When the absorbent moves down to the contact position between the oily paint and the water-based paint, the telescopic member continues to control the absorbent to move downward, so that the absorbent enters the water-based paint. Due to the hydrophobicity of the absorbent, the water-based paint will not enter the absorbent. In this way, the oily paint near the water-based paint position can be absorbed, and the oily paint and the water-based paint are completely separated. At this time, the telescopic member stops driving the absorbent to move downward. After that, the drainage pipe assembly 34 is controlled to open, and the water-based paint is first discharged from the separation cylinder 31. After the water-based paint is completely discharged, the telescopic member continues to drive the absorbent to move downward. After the bottom surface of the absorbent contacts the inner bottom wall of the separation cylinder 31, the telescopic member moves downward along with the contact between the bottom surface of the absorbent and the inner bottom wall of the separation cylinder 31. Continuing to extend, the extrusion piece can generate downward pressure on the top surface of the absorption piece, thereby squeezing out the oily paint in the absorption piece, and then the oily paint is discharged through the drainage pipe assembly 34, thus completing the separation and collection of the oily paint and the water-based paint in the automobile painting waste liquid. Compared with the traditional suction separation method, it adopts a flexible material with oleophilic and hydrophobic properties as the absorption piece, which can physically absorb the oily paint separately. It only needs to control the lifting and rotating actions of the absorption piece to quickly and effectively absorb the oily paint, which not only realizes the complete separation of the oily paint and the water-based paint, but also the absorption method is easy to implement and does not require too much intelligent regulation, so it is suitable for wide promotion and use.

[0033] Please refer to Figure 3 The absorbent includes a cylindrical connector 321, and eight long strip absorbents 322 are evenly connected to the outer peripheral side of the connector 321. Both the connector 321 and the absorbent 322 are made of oleophilic and hydrophobic sponge materials.

[0034] It should be noted that the number of absorbers 322 is not limited to eight and can be adjusted according to actual usage. When the absorber absorbs the oily paint, the absorber is driven downward by the telescopic member, and the connector 321 and the eight absorbers 322 move downward together. Since the oleophilic and hydrophobic sponge itself has a certain hardness, when the absorber moves downward and rotates, the force generated will not cause it to deform significantly. The connector 321 and the absorber 322 are in contact with the oily paint, and the oily paint can be directly absorbed into the inside by utilizing the adsorption capacity of the sponge material. The connector 321 and the absorber 322 rotate together, so that the absorber 322 can evenly absorb the oily paint at different horizontal positions. In addition, a plurality of long strip-shaped absorbers 322 are provided. Compared with the one-piece structure, on the one hand, it can reduce the resistance encountered by the absorber when it moves downward as a whole. On the other hand, the five surfaces of the absorber 322 are in contact with the oily paint at the same time, which can also speed up the absorption efficiency of the absorber 322.

[0035] Please refer to Figure 4 and Figure 5 The telescopic part includes an electric push rod 323, a spiral rod 324 and a matching shaft body 325. The fixed end of the electric push rod 323 is fixed to the top of the separation cylinder 31, and the top of the electric push rod 323 slides upward to pass through the top of the outer filter tank body 1. The bottom end of the spiral rod 324 slides from the top of the separation cylinder 31 to the inner side of the separation cylinder 31, and is finally fixed to the absorbent. The top of the spiral rod 324 is rotatably connected to the telescopic end of the electric push rod 323, and the matching shaft body 325 is fixedly installed on the top of the separation cylinder 31. The end of the matching shaft body 325 is slidably matched with the spiral groove on the spiral rod 324. The spiral groove arranged on the spiral rod 324 includes a spiral section and a vertical section. The vertical section is located at the upper end of the spiral rod 324, and its end extends to the top of the spiral rod 324.

[0036] It should be noted that when the telescopic member drives the absorber to move downward, the electric push rod 323 extends downward, which can drive the spiral rod 324 and the absorber to move downward together. At the same time, the matching shaft 325 slides with the spiral groove on the spiral rod 324 to generate a rotational force on the spiral rod 324, which can drive the spiral rod 324 to rotate, and the absorber follows the spiral rod 324 to move downward and rotate synchronously. When the matching shaft 325 slides to the vertical section of the spiral groove, it no longer generates a rotational force on the spiral rod 324, so that the spiral rod 324 and the absorber no longer rotate. At this time, the absorber has also reached the middle position of the separation cylinder 31, and has completely absorbed the oily paint. When the water-based paint is discharged to the outside of the separation cylinder 31 Afterwards, the telescopic member continues to drive the absorbing member to move downward, and under the cooperation of the extrusion member and the telescopic member, the oily paint in the connecting body 321 and the absorbing body 322 is squeezed out; and the telescopic member is used to drive the absorbing member to perform lifting and rotation movements. In addition to being used to effectively absorb the oily paint, in the stratification stage of the automobile painting waste liquid, the automobile painting waste liquid can be stirred by the lifting and rotation of the absorbing member, and the linear up and down reciprocating drive of the reciprocating drive component 33 can accelerate the stratification of the automobile painting waste liquid. Therefore, the present invention uses the telescopic member and the absorbing member in cooperation, which is not only used to absorb the stratified oily paint separately, but also used to accelerate the stratification speed of the automobile painting waste liquid.

[0037] Please refer to Figure 6 and Figure 7 The extrusion member includes an extrusion portion and a pushing portion. The extrusion portion is rotatably arranged on the top of the absorbent, and the pushing portion is fixedly installed on the bottom of the inner side of the separation cylinder 31. When the extrusion portion moves downward and contacts the pushing portion, the pushing portion pushes the extrusion portion to flexibly cover the top surface of the absorbent. When the bottom of the absorbent contacts the inner bottom wall of the separation cylinder 31, the extrusion portion generates downward pressure on the absorbent to squeeze out the oily paint inside it.

[0038] Specifically, the extrusion part includes a connecting plate 326, a rotating plate 327, a torsion spring 328 and a cover plate 329 with the same number as the absorber 322. The bottom of the connecting plate 326 is fixedly connected to the top surface of the connecting body 321, and the top is fixedly connected to the bottom end of the spiral rod 324. The rotating plate 327 is rotatably installed on the top of the connecting plate 326, and the torsion spring 328 is fixedly installed between the rotating plate 327 and the connecting plate 326. A number of cover plates 329 are uniformly distributed on the outer side of the connecting plate 326, and each cover plate 329 is correspondingly arranged between two absorbers 322. The tops of the cover plates 329 are provided with a number of linearly uniformly distributed water outlet holes 3210. The pushing part includes a number of pushing plates 3211 with the same number as the cover plates 329. The pushing plates 3211 are fixedly installed on the bottom of the inner side of the separation cylinder 31, and the pushing plates 3211 are distributed one-to-one with the cover plates 329. The tops of the pushing plates 3211 are provided with inclined slopes.

[0039] It should be noted that, in the stage of stratifying the automobile painting waste liquid, the extrusion part follows the absorption part to perform lifting and rotating movements, and is also used to stir the automobile painting waste liquid. Since each cover plate 329 is located between the two absorbers 322, the gap between the two absorbers 322 is filled, so that the stirring structure composed of the absorption part and the extrusion part has more opportunities to contact with the automobile painting waste liquid, which can further increase the stirring effect of the automobile painting waste liquid. In the stage of the absorption part absorbing the oily paint, in the process of the absorption part 322 moving down to absorb the oily paint, the cover plate 329 will not block the top of the absorption part 322. In the stage of squeezing the oily paint out of the absorption part, the end of the cover plate 329 moves down and contacts the inclined slope of the push plate 3211. As the cover plate 329 continues to move down with the rotating part, the inclined slope generates a rotational driving force on the cover plate 329, so that the cover plate 329 and the rotating plate 327 rotate together on the top of the connecting plate 326. When the cover 329 is in the process of rotating, the cover 329 is no longer subjected to the rotational force, and is thus stably located at the top of the absorbent body 322, and exerts downward pressure on the absorbent body 322, thereby squeezing out the oily paint in the absorbent body 322. The squeezed oily paint can flow out through the water outlet 3210 on the cover 329 and the side of the absorbent body 322. After the extrusion action is completed, the telescopic part moves upward, driving the absorbent and the extrusion part to move upward and reset synchronously. During the upward movement of the extrusion part, the extrusion part is gradually rotated and reset with the help of the elastic force of the torsion spring 328 until the cover 329 is separated from the inclined slope, which just causes the extrusion part to be completely reset.

[0040] Please refer to Figure 2 Three limiting pulleys 35 are evenly distributed on the outer circumference of the separation cylinder 31, and a mounting frame is detachably mounted on the upper end of the outer side of the separation cylinder 31. The three limiting pulleys 35 are evenly and detachably mounted on the outer side of the mounting frame. A limiting guide rail 36 matched with the limiting pulley 35 is fixedly mounted on the inner side wall of the outer filtering tank body 1, and the three limiting pulleys 35 are in rolling contact with the limiting guide rail 36.

[0041] It should be noted that when the separation cylinder 31 reciprocates up and down, the limiting pulley 35 rolls along the limiting guide rail 36 to limit the separation cylinder 31 and reduce the friction of the separation cylinder 31 moving up and down, so that the separation cylinder 31 can move smoothly.

[0042] Please refer to Figure 8The reciprocating drive assembly 33 includes a drive motor 331, a crankshaft 332 and two pulleys 333. The drive motor 331 is fixedly mounted on the inner bottom wall of the outer filter tank body 1. The crankshaft 332 is rotatably connected to the bottom wall of the outer filter tank body 1. The bottom of the separation cylinder 31 is rotatably connected to the middle part of the crank. The two pulleys 333 are respectively fixedly connected to the rotating end of the drive motor 331 and the end of the crank, and the two pulleys 333 are connected by a transmission belt.

[0043] It should be noted that when the reciprocating drive assembly 33 drives the separation cylinder 31 to move, the two pulleys 333 can rotate synchronously by driving the motor 331, and the crank synchronously drives the separation cylinder 31 to reciprocate up and down under the transmission action of the pulley 333.

[0044] Please refer to Figure 8 and Fig. 9 The drainage pipe assembly 34 includes two drainage pipes 341 with telescopic function, one end of the two drainage pipes 341 is connected to the bottom of the separation cylinder 31, and the other end thereof extends to the outside of the outer filter tank body 1, and one end of the two drainage pipes 341 is provided with a control valve 342. The drainage pipe assembly 34 also includes an induction switch 343, which is installed on the inner bottom wall of the separation cylinder 31, and the induction switch 343 is electrically connected to one of the control valves 342.

[0045] It should be noted that after the oily paint is absorbed, one of the control valves 342 is opened to allow the remaining water-based paint to flow out through the drain pipe 341 corresponding to the control valve 342. After the water-based paint is discharged, the control valve 342 is closed. When the oily paint in the absorbent is squeezed out, after the bottom of the absorbent contacts the inner bottom wall of the separation cylinder 31, the induction switch 343 is triggered, so that the other control valve 342 is opened, and the squeezed oily paint flows out through the other drain pipe 341, so that the independent discharge of the oily paint and the water-based paint can be achieved.

[0046] Please refer to Figure 2 and Figure 4 The filtering mechanism 2 includes a filtering bucket 21 and a liquid inlet pipe 22 with an extension function. The filtering bucket 21 is fixedly installed on the top of the separation cylinder 31. The drainage port at the bottom of the filtering bucket 21 is connected to the top of the separation cylinder 31. The liquid inlet pipe 22 is fixedly installed on the outside of the outer filtering tank body 1. The top end of the liquid inlet pipe 22 passes through the top of the outer filtering tank body 1 and is connected to the top of the filtering bucket 21.

[0047] It should be noted that the bottom end of the liquid inlet pipe 22 is connected to an external delivery pump, through which the automobile painting waste liquid is delivered to the filter bucket 21, and a filter layer is provided in the filter bucket 21. After the automobile painting waste liquid passes through the filter layer, the solid impurities therein are filtered, and then the waste liquid flows into the separation cylinder 31 through the delivery pipe.

[0048] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A vehicle painting waste liquid filtering and separation device, characterized in that: include: An external filtering tank body (1), a filtering mechanism (2) and a separating mechanism (3), wherein the filtering mechanism (2) and the separating mechanism (3) are both arranged in the external filtering tank body (1), the filtering mechanism (2) is used to separate and filter solid impurities in automobile painting waste liquid, and the separating mechanism (3) is used to separate and process oily paint and water-based paint in the automobile painting waste liquid; The separation mechanism (3) comprises a separation cylinder (31), an absorption separation component (32), a reciprocating drive component (33) and a drainage pipe component (34); the absorption separation component (32) is arranged at the top of the separation cylinder (31); the driving end of the reciprocating drive component (33) is connected to the bottom of the separation cylinder (31) and is used to drive the separation cylinder (31) to perform a linear up and down reciprocating motion in the outer filter tank (1); and the drainage pipe component (34) is arranged at the bottom of the separation cylinder (31); The absorption and separation assembly (32) comprises an extrusion member, a telescopic member fixedly mounted on the top of the separation cylinder (31), and an absorption member arranged on the top of the inner side of the separation cylinder (31); the absorption member is made of a flexible material that is oleophilic and hydrophobic; the telescopic end of the telescopic member is fixedly connected to the absorption member; the absorption member is driven by the telescopic member to perform lifting and rotating movements in the separation cylinder (31) to absorb the oily paint located in the upper layer separately; after the absorption member descends and contacts the inner bottom wall of the separation cylinder (31), the extrusion member generates downward pressure on the absorption member to squeeze out the oily paint in the absorption member; The absorbent comprises a cylindrical connector (321), a plurality of long strip absorbents (322) are evenly connected to the outer peripheral side of the connector (321), and both the connector (321) and the absorbent (322) are made of oleophilic and hydrophobic sponge materials; The telescopic member comprises an electric push rod (323), a spiral rod (324) and a matching shaft (325); the fixed end of the electric push rod (323) is fixed to the top of the separation cylinder (31); the top end of the electric push rod (323) slides upward and passes through the top of the outer filter tank (1); the bottom end of the spiral rod (324) slides from the top of the separation cylinder (31) to the inner side of the separation cylinder (31) and is finally fixed to the absorbent; the top end of the spiral rod (324) is rotatably connected to the telescopic end of the electric push rod (323); the matching shaft (325) is fixedly mounted on the top of the separation cylinder (31); and the end of the matching shaft (325) is slidably matched with the spiral groove on the spiral rod (324); The extrusion member comprises an extrusion portion and a pushing portion, wherein the extrusion portion is rotatably arranged on the top of the absorbent, and the pushing portion is fixedly installed on the bottom of the inner side of the separation cylinder (31); when the extrusion portion moves downward and contacts the pushing portion, the pushing portion pushes the extrusion portion to movably cover the top surface of the absorbent; when the bottom of the absorbent contacts the inner bottom wall of the separation cylinder (31), the extrusion portion generates downward pressure on the absorbent to squeeze out the oily paint inside the absorbent; The extrusion portion comprises a connecting plate (326), a rotating plate (327), a torsion spring (328) and a cover plate (329) having the same number as the absorbent body (322); the bottom of the connecting plate (326) is fixedly connected to the top surface of the connecting body (321), and the top is fixedly connected to the bottom end of the spiral rod (324); the rotating plate (327) is rotatably mounted on the top of the connecting plate (326); the torsion spring (328) is fixedly mounted between the rotating plate (327) and the connecting plate (326); and a plurality of the cover plates (329) are evenly distributed around the connecting plate (326). The cover plates (329) are arranged on the outside of the separation cylinder (310), and each of the cover plates (329) is correspondingly arranged between the two absorbent bodies (322). The tops of the cover plates (329) are provided with a plurality of linearly evenly distributed water outlet holes (3210). The pushing portion comprises a pushing plate (3211) having the same number as the cover plates (329). The pushing plates (3211) are fixedly mounted on the bottom of the inner side of the separation cylinder (31), and the pushing plates (3211) are distributed in a one-to-one correspondence with the cover plates (329). The tops of the pushing plates (3211) are provided with an inclined slope.

2. The automobile painting waste liquid filtering and separation device according to claim 1 is characterized in that: A plurality of limiting pulleys (35) are evenly distributed on the outer circumference of the separation cylinder (31), and a limiting guide rail (36) matching the limiting pulley (35) is fixedly mounted on the inner wall of the outer filtering tank body (1), and the plurality of limiting pulleys (35) are in rolling contact with the limiting guide rail (36).

3. The automobile painting waste liquid filtering and separation device according to claim 2 is characterized in that: The reciprocating drive assembly (33) comprises a drive motor (331), a crankshaft (332) and two pulleys (333); the drive motor (331) is fixedly mounted on the inner bottom wall of the outer filter tank body (1); the crankshaft (332) is rotatably connected to the bottom wall of the outer filter tank body (1); the bottom of the separation cylinder (31) is rotatably connected to the middle of the crank; the two pulleys (333) are respectively fixedly connected to the rotating end of the drive motor (331) and the end of the crank; and the two pulleys (333) are connected to each other via a transmission belt.

4. The automobile painting waste liquid filtering and separation device according to claim 3 is characterized in that: The drainage pipe assembly (34) comprises two drainage pipes (341) with telescopic function, one end of each of the drainage pipes (341) being in communication with the bottom of the separation cylinder (31), and the other end thereof extending to the outside of the outer filter tank (1), and one end of each of the drainage pipes (341) being provided with a control valve (342).

5. The automobile painting waste liquid filtering and separation device according to claim 4 is characterized in that: The liquid discharge pipe assembly (34) further comprises an induction switch (343), wherein the induction switch (343) is mounted on the inner bottom wall of the separation cylinder (31), and the induction switch (343) is electrically connected to one of the control valves (342).

6. The automobile painting waste liquid filtering and separation device according to claim 5 is characterized in that: The filtering mechanism (2) comprises a filtering bucket (21) and a liquid inlet pipe (22) having an extension function, wherein the filtering bucket (21) is fixedly mounted on the top of the separation cylinder (31), a drainage port at the bottom of the filtering bucket (21) is connected to the top of the separation cylinder (31), and the liquid inlet pipe (22) is fixedly mounted on the outside of the outer filtering tank body (1), and the top end of the liquid inlet pipe (22) passes through the top of the outer filtering tank body (1) and is connected to the top of the filtering bucket (21).

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