Wastewater treatment device for water-based paint production

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a water-based paint production wastewater treatment device which comprises a stirring barrel, a rotatable stirring shaft is arranged in the stirring barrel, a plurality of stirring blades distributed at equal intervals are arranged on the stirring shaft, a connecting piece is fixed to the lower end of the stirring barrel, and the connecting piece is connected with the stirring shaft. An extrusion cylinder is fixed to the lower end of the connecting piece, two movable sealing plates are arranged on the connecting piece, and a plurality of first scraping plates distributed at equal intervals are arranged at the lower end of the stirring shaft; a movable extrusion plate is arranged in the extrusion cylinder, a plurality of filtering holes are formed in the extrusion plate, and an annular piece is arranged on one side of the extrusion plate, the purpose of carrying out extrusion dehydration treatment on impurities and separated precipitates can be achieved, the concentration of a coagulant in sewage can be guaranteed, the sewage solid-liquid separation effect can be improved, and secondly, the solid-liquid separation effect can be improved. Dehydrated impurities and precipitates do not need to be further treated, time and labor are saved, and the sewage pretreatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of wastewater treatment, in particular to a wastewater treatment device for water-based paint production. BACKGROUND

[0002] The core purpose of water-based paint wastewater treatment is to realize standard discharge of pollutants or resource recycling through pretreatment, biochemical degradation and deep treatment processes, wherein water-based paint wastewater pretreatment mainly comprises sewage agent mixing, solid-liquid separation and air flotation treatment.

[0003] When the amount of impurities and precipitates in the stirring tank is large, the stirring tank space is occupied, the mixing effect of the coagulant and the sewage is affected, and the impurities and the precipitates need to be discharged in time. At present, when the impurities and the precipitates are discharged, the sewage is discharged synchronously, which causes the coagulant in the sewage to be discharged, affecting the solid-liquid separation effect of the sewage. In addition, the discharged sewage and the precipitates need to be further separated, which is time-consuming and laborious and affects the pretreatment effect of the sewage. SUMMARY

[0004] The application provides a wastewater treatment device for water-based paint production, which can realize the purpose of extruding and dewatering the impurities and the separated precipitates by driving the extruding plate to move in the extruding cylinder through the electric push rod, can guarantee the concentration of the coagulant in the sewage, improve the solid-liquid separation effect of the sewage, and has the beneficial effects of saving time and effort, improving the pretreatment efficiency of the sewage, and solving the problems that the impurities and the precipitates are discharged synchronously with the sewage, the coagulant in the sewage is also discharged, the solid-liquid separation effect of the sewage is affected, the discharged sewage and the precipitates need to be further separated, and the pretreatment effect of the sewage is affected.

[0005] The application provides the following technical scheme: a wastewater treatment device for water-based paint production, comprising a stirring barrel, a rotatable stirring shaft is arranged in the stirring barrel, a plurality of equidistant stirring blades are arranged on the stirring shaft, a connecting piece is fixed to the lower end of the stirring barrel, an extruding cylinder is fixed to the lower end of the connecting piece, two movable sealing plates are arranged on the connecting piece, and a plurality of equidistant first scrapers are arranged at the lower end of the stirring shaft.

[0006] The extrusion cylinder is equipped with a movable extrusion plate, which has several filter holes. An annular plate is provided on one side of the extrusion plate. The extrusion cylinder is equipped with a first contact frame, on which a first contact rod is fixed. The upper end of the mixing tank is equipped with a movable collection basket.

[0007] As an optional embodiment of the wastewater treatment device for water-based coating production described in this invention, wherein: an installation block is fixed on the extrusion cylinder, a rocker plate is rotatably connected to the installation block, a first torsion spring is rotatably connected between the rocker plate and the installation block, a second abutting rod is abutted at the lower end of the rocker plate, the second abutting rod is slidably connected to the extrusion cylinder, and a limit ring is fixed at one end of the second abutting rod.

[0008] As an optional embodiment of the wastewater treatment device for water-based coating production described in this invention, a guide rod is fixed on the sealing plate, the guide rod is elastically connected to the connector via a first spring, an abutting slope is provided on the sealing plate, an incline abutting block is abutting the incline, the incline abutting block is slidably connected to the connector, and an L-shaped abutting block is fixed on the incline abutting block.

[0009] As an optional embodiment of the wastewater treatment device for water-based coating production according to the present invention, wherein: a first servo motor and a drain pipe are fixedly fixed on the mixing tank, the motor shaft of the first servo motor is fixedly connected to the mixing shaft, a mounting base is fixed on the extrusion cylinder, a second servo motor is fixed on the mounting base, a rotating block is fixed to the motor shaft of the second servo motor, and a sealing cover is provided at the end of the extrusion cylinder, the sealing cover being fixedly connected to the rotating block.

[0010] As an optional embodiment of the wastewater treatment device for water-based coating production according to the present invention, wherein: a second spring is connected between the annular plate and the extrusion plate; a plurality of circumferentially equidistant inserts are fixed on the annular plate; the inserts are adapted to the filter holes; an electric push rod is fixed on the stirring tank; the piston rod of the electric push rod is slidably connected to the extrusion cylinder; and the piston rod of the electric push rod is fixedly connected to the extrusion plate.

[0011] As an optional embodiment of the wastewater treatment device for water-based coating production described in this invention, the inner wall of the extrusion cylinder is provided with a strip groove, the first contact frame is located in the strip groove, the first contact rod is elastically connected to the mixing tank through a third spring, and an installation column is fixed on the first scraper, the installation column is elastically connected to the mixing shaft through a fourth spring.

[0012] As an optional embodiment of the wastewater treatment device for water-based coating production according to the present invention, wherein: a rotating shaft is fixed on the stirring blade, the rotating shaft is rotatably connected to the stirring shaft, and an abutment strip is fixed on the rotating shaft; a second abutment frame is fixed on the mounting column, and one end of the abutment strip abuts against the second abutment frame.

[0013] As an optional embodiment of the wastewater treatment device for water-based coating production described in this invention, wherein: a third abutment frame is slidably connected to the mixing tank, one end of the third abutment frame abuts against a rotating bracket, the rotating bracket is elastically connected to the mounting base through a second torsion spring, and a striking head is fixed on the rotating bracket.

[0014] As an optional embodiment of the wastewater treatment device for water-based coating production described in this invention, wherein: a sliding bracket is fixed on the mixing tank, the sliding bracket is slidably connected to the collection basket, and a filter hole is provided in the collection basket; an annular discharge trough is fixed on the mixing tank; and a second scraper is fixed on the mixing shaft.

[0015] As an optional embodiment of the wastewater treatment device for water-based coating production described in this invention, wherein: an L-shaped abutment rod is fixed on the collection basket, the L-shaped abutment rod is elastically connected to the annular discharge trough through a fifth spring, and the lower end of the L-shaped abutment rod abuts against the third abutment frame.

[0016] The present invention has the following beneficial effects:

[0017] 1. In this wastewater treatment device for water-based coating production, the stirring shaft inside the mixing tank drives the stirring blades to rotate, which can achieve the purpose of stirring the wastewater and added coagulant in the mixing tank. This allows suspended solids and colloidal substances in the wastewater to aggregate into large particles for sedimentation, facilitating solid-liquid separation of wastewater. The extrusion cylinder is connected to the lower end of the mixing tank through a connecting part. Under the action of the first scraper at the lower end of the stirring shaft, impurities and preliminarily separated sediments at the bottom of the mixing tank can be scraped into the extrusion cylinder. The electric push rod can drive the extrusion plate to move inside the extrusion cylinder, which can achieve the purpose of extruding impurities and separated sediments, facilitating the dehydration treatment of impurities and sediments. Through the cooperation of the second servo motor, rotating block and sealing cover, the dehydrated impurities and sediments are easily discharged from the extrusion cylinder. The sealing plate facilitates the opening and closing of the feed port of the connecting part, preventing impurities and sediments from continuing to flow into the extrusion cylinder during the extrusion of the extrusion plate, thereby affecting the extrusion effect.

[0018] When the extrusion plate resets, it can drive the annular plate to move synchronously. On the one hand, the annular plate can scrape the sewage squeezed by the extrusion plate, making it easier for the sewage to be discharged quickly from the drain of the extrusion cylinder. With the help of the water pump, it can flow back into the mixing tank. On the other hand, the rod on the annular plate can be inserted into the filter hole on the extrusion plate, which is beneficial to clear blockages and improve the flowability of sewage through the extrusion plate. When impurities and sediments are dehydrated and discharged, the concentration of coagulant in the sewage can be guaranteed, improving the solid-liquid separation effect of sewage. Secondly, there is no need for further treatment of dehydrated impurities and sediments, saving time and effort and improving the efficiency of sewage pretreatment.

[0019] 2. In this wastewater treatment device for water-based coating production, when the first contact frame contacts the extrusion plate, the first contact rod can automatically move upward in the extrusion cylinder, so that the rotating first scraper contacts it and drives the mounting column to move vertically in the stirring shaft. This causes the second contact frame fixed on the mounting column to contact the contact strip on the rotating shaft, thereby causing the stirring blades on the rotating shaft to deflect. This generates multi-directional flow, allowing the coagulant to disperse quickly and come into full contact with the colloidal particles in the wastewater, avoiding the problem of excessively high local concentration or insufficient reaction, and improving the solid-liquid separation effect.

[0020] Simultaneously, as the first scraper rotates upwards, it comes into contact with the third contact frame, causing the third contact frame to push the striking head on the rotating bracket to deflect. This achieves the purpose of striking the sealing cap, improving the discharge effect of impurities and sediments after dewatering and reducing the amount of residue adhering to the surface.

[0021] 3. In this wastewater treatment device for water-based coating production, the collection basket installed at the top of the mixing tank can scrape floating impurities in the wastewater into the collection basket with the help of the second scraper on the mixing shaft, so as to reduce the floating impurities in the wastewater. When the L-shaped contact rod on the collection basket contacts the third contact frame, it can drive the collection basket to move upward. On the one hand, it is conducive to the separation of wastewater and floating impurities in the collection basket, which is beneficial to the treatment of wastewater. On the other hand, the upward movement of the collection basket can transport the floating impurities to the annular discharge trough for centralized treatment. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a cross-sectional view of the structure of the present invention.

[0024] Figure 3 This is a schematic diagram of the internal structure of the mixing tank of the present invention.

[0025] Figure 4 This is a schematic diagram of the extrusion cylinder structure of the present invention.

[0026] Figure 5 This is a cross-sectional view of the stirring shaft structure of the present invention.

[0027] Figure 6 This is a schematic diagram of the extrusion plate structure of the present invention.

[0028] Figure 7 for Figure 2 Enlarged view of point A in the middle.

[0029] Figure 8 for Figure 4 Enlarged view of section B in the middle.

[0030] In the diagram: 1. Mixing tank; 2. Mixing shaft; 3. Mixing blades; 4. Connecting piece; 5. Extrusion cylinder; 6. Sealing plate; 7. First scraper; 8. Extrusion plate; 9. Filter hole; 10. Annular plate; 11. First contact frame; 12. First contact rod; 13. Collection basket; 14. Mounting block; 15. Rocker; 16. First torsion spring; 17. Second contact rod; 18. Limiting ring; 19. Guide rod; 20. First spring; 21. Contact slope; 22. C-shaped contact block; 23. L-shaped contact block; 24. First servo motor; 25. Mounting base; 26. Second servo motor; 27. Rotating block; 28. Sealing cover; 29. ​​Drain pipe; 30. Second spring; 31. Insert rod; 32. Strip groove; 33. Third spring; 34. Mounting column; 35. Fourth spring; 36. Rotating shaft; 37. Abutment strip; 38. Second abutment frame; 39. Third abutment frame; 40. Rotating bracket; 41. Second torsion spring; 42. Striking head; 43. Sliding bracket; 44. Filter hole; 45. Annular discharge chute; 46. L-shaped abutment rod; 47. Second scraper; 48. Fifth spring; 49. Electric push rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1, please refer to Figures 1 to 8 A wastewater treatment device for water-based coating production includes a mixing tank 1, a rotatable mixing shaft 2 inside the mixing tank 1, a plurality of equally spaced mixing blades 3 on the mixing shaft 2, a connecting piece 4 fixed to the lower end of the mixing tank 1, a pressing cylinder 5 fixed to the lower end of the connecting piece 4, two movable sealing plates 6 on the connecting piece 4, and a plurality of equally spaced first scrapers 7 at the lower end of the mixing shaft 2.

[0033] The extrusion cylinder 5 is equipped with a movable extrusion plate 8, which has several filter holes 9. An annular plate 10 is provided on one side of the extrusion plate 8. The extrusion cylinder 5 is equipped with a first contact frame 11, which is fixed with a first contact rod 12. The upper end of the mixing tank 1 is equipped with a movable collection basket 13.

[0034] An installation block 14 is fixed on the extrusion cylinder 5. A rocker plate 15 is rotatably connected to the installation block 14. A first torsion spring 16 is rotatably connected between the rocker plate 15 and the installation block 14. The lower end of the rocker plate 15 abuts against a second abutting rod 17. The second abutting rod 17 is slidably connected to the extrusion cylinder 5, and a limit ring 18 is fixed to one end of the second abutting rod 17.

[0035] A guide rod 19 is fixed on the sealing plate 6. The guide rod 19 is elastically connected to the connector 4 through the first spring 20. An abutting slope 21 is provided on the sealing plate 6. An incline abutting block 22 abuts on the abutting slope 21. The incline abutting block 22 is slidably connected to the connector 4, and an L-shaped abutting block 23 is fixed on the incline abutting block 22.

[0036] A first servo motor 24 and a drain pipe 29 are fixed on the mixing tank 1. The motor shaft of the first servo motor 24 is fixedly connected to the mixing shaft 2. A mounting base 25 is fixed on the extrusion cylinder 5. A second servo motor 26 is fixed on the mounting base 25. A rotating block 27 is fixed on the motor shaft of the second servo motor 26. A sealing cover 28 is provided at the end of the extrusion cylinder 5. The sealing cover 28 is fixedly connected to the rotating block 27.

[0037] A second spring 30 is connected between the annular plate 10 and the extrusion plate 8. Several circumferentially distributed insertion rods 31 are fixed on the annular plate 10. The insertion rods 31 are adapted to the filter holes 9. An electric push rod 49 is fixed on the mixing tank 1. The piston rod of the electric push rod 49 is slidably connected to the extrusion cylinder 5, and the piston rod of the electric push rod 49 is fixedly connected to the extrusion plate 8.

[0038] refer to Figures 1 to 8When pre-treating wastewater generated during the production of water-based coatings, the wastewater is first injected into a mixing tank 1, and then a coagulant is added to the mixing tank 1. The first servo motor 24 drives the mixing blades 3 on the mixing shaft 2 to stir the wastewater, causing suspended solids and colloidal substances in the wastewater to aggregate into large particles for sedimentation. The separated wastewater can flow into a sedimentation tank through the drain pipe 29 for settling treatment. At this time, a large amount of impurities and initially separated sediments are collected at the bottom of the mixing tank 1. Since the sealing plate 6 on the connecting part 4 is in the open state, when the first scraper 7 at the bottom of the mixing shaft 2 rotates, it can scrape the impurities and sediments into the feed inlet of the connecting part 4, and then convey them to the extrusion cylinder 5 through the connecting part 4. 49 drives the extrusion plate 8 to move inside the extrusion cylinder 5. With the cooperation of the sealing cover 28, the impurities and sediments can be squeezed and dehydrated. During the movement of the extrusion plate 8, the annular piece 10 on the extrusion plate 8 can be released from contact with the second contact rod 17. The rocker plate 15 rotatably connected on the mounting block 14 is reset under the elastic force of the first torsion spring 16 and is released from contact with the L-shaped contact block 23. At the same time, the chamfered contact block 22 is released from contact with the contact slope 21, so that the first spring 20 releases its elastic force. The two guide rods 19 drive the sealing plate 6 to move closer to each other and automatically seal the feed port of the connector 4. During the dehydration process, large particles of impurities and sediments continue to flow into the extrusion cylinder 5, affecting the extrusion effect.

[0039] During the extrusion process of the extrusion plate 8, the wastewater passes through the filter hole 9 and the gap between the annular plate 10 and the extrusion cylinder 5, and can be discharged to one side of the annular plate 10. The drain port of the extrusion cylinder 5 is connected to a water pump, which can pump the wastewater in the extrusion cylinder 5 into the mixing tank 1 for reaction. The second servo motor 26 can drive the rotating block 27 to rotate on the mounting base 25, thereby opening the sealing cover 28, which facilitates the discharge of impurities and sediments after dehydration. When the extrusion plate 8 resets, it drives the annular plate 10 to move synchronously. On the one hand, the annular plate 10 can scrape the wastewater extruded by the extrusion plate 8, improving the drainage efficiency of the extrusion cylinder 5. On the other hand, the annular plate 10 is pushed by the second abutment rod 17, which can drive the insertion rod 31 to move horizontally. The second spring 30 stores force, causing the insertion rod 31 to be inserted into the filter hole 9 on the extrusion plate 8, which is beneficial for clearing blockages. During dehydration, it can improve the flow of wastewater through the extrusion plate 8. At the same time, the horizontal movement of the second abutment rod 17 can cause the sealing plate 6 to open automatically, allowing large particles of impurities and separated sediments to continue to flow into the extrusion cylinder 5.

[0040] The limiting ring 18 fixed on the second abutment rod 17 can prevent the second abutment rod 17 from detaching from the extrusion cylinder 5.

[0041] Example 2 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1 to 8The inner wall of the extrusion cylinder 5 is provided with a strip groove 32. The first contact frame 11 is located in the strip groove 32. The first contact rod 12 is elastically connected to the mixing tank 1 through the third spring 33. The first scraper 7 is fixed with a mounting column 34. The mounting column 34 is elastically connected to the mixing shaft 2 through the fourth spring 35.

[0042] A rotating shaft 36 is fixed on the stirring blade 3. The rotating shaft 36 is rotatably connected to the stirring shaft 2. An abutment strip 37 is fixed on the rotating shaft 36. A second abutment frame 38 is fixed on the mounting column 34. One end of the abutment strip 37 abuts against the second abutment frame 38.

[0043] refer to Figures 2 to 5 When the extrusion plate 8 moves to dehydrate, it can make contact with the first contact frame 11, causing the first contact frame 11 to retract into the strip groove 32 and drive the first contact rod 12 to move upward in the extrusion cylinder 5. The third spring 33 stores power, causing the rotating first scraper 7 to contact the first contact rod 12, which can make the first scraper 7 drive the mounting column 34 to move vertically in the stirring shaft 2. The fourth spring 35 stores power, causing the second contact frame 38 fixed at the upper end of the mounting column 34 to move upward and contact the contact strip 37 on the rotating shaft 36, which can make the stirring blade 3 automatically deflect when stirring the sewage, and generate multi-directional flow, so that the coagulant can be quickly dispersed and fully contacted with the colloidal particles in the sewage, avoiding the problem of excessive local concentration or insufficient reaction, and improving the solid-liquid separation effect.

[0044] When the second contact frame 38 is reset, it can contact the contact strip 37, causing the rotating shaft 36 to drive the stirring blade 3 to deflect automatically.

[0045] Example 3 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1 to 8 A third contact frame 39 is slidably connected to the mixing tank 1. One end of the third contact frame 39 abuts against a rotating bracket 40. The rotating bracket 40 is elastically connected to the mounting base 25 through a second torsion spring 41, and a striking head 42 is fixed on the rotating bracket 40.

[0046] A sliding bracket 43 is fixed on the mixing tank 1. The sliding bracket 43 is slidably connected to the collection basket 13. A water filter hole 44 is opened in the collection basket 13. An annular discharge trough 45 is fixed on the mixing tank 1. A second scraper 47 is fixed on the mixing shaft 2.

[0047] An L-shaped abutment rod 46 is fixed on the collection basket 13. The L-shaped abutment rod 46 is elastically connected to the annular discharge trough 45 through the fifth spring 48, and the lower end of the L-shaped abutment rod 46 abuts against the third abutment frame 39.

[0048] refer to Figures 1 to 4The collection basket 13 can collect floating impurities from the sewage. When the second scraper 47 fixed on the stirring shaft 2 rotates, it scrapes the floating matter from the upper layer of sewage into the collection basket 13, separating the floating impurities from the sewage and preventing them from clogging the pipes during sewage treatment and affecting the treatment effect. When the first scraper 7 automatically moves upwards after contacting the first contact rod 12, its deflection allows it to contact the third contact frame 39, causing the third contact frame 39 to move horizontally on the stirring tank 1, thus contacting the L-shaped contact rod 46 and causing the L-shaped contact rod 46 to move horizontally. The contact rod 46 slides on the annular discharge trough 45, and the fifth spring 48 stores power. When the L-shaped contact rod 46 moves upward, it can drive the collection basket 13 to slide on the sliding bracket 43. When the collection basket 13 moves upward, on the one hand, it can avoid contact with the sewage in the mixing tank 1, and facilitate the sewage in the collection basket 13 to be discharged from the filter hole 44, leaving floating impurities. This can reduce the sewage in the floating impurities and improve the sewage treatment effect. On the other hand, the bottom of the collection basket 13 is flush with the end of the annular discharge trough 45, which facilitates the floating impurities to slide into the annular discharge trough 45 for centralized treatment, thereby automatically discharging them from the mixing tank 1.

[0049] Meanwhile, the third contact frame 39 contacts the rotating bracket 40 during its movement, which enables the rotating bracket 40 to drive the knocking head 42 to automatically deflect. The rotating bracket 40 rotates on the mounting base 25, and the second torsion spring 41 stores force, which enables the knocking head 42 to knock on the open sealing cover 28, thereby improving the discharge effect of impurities and sediments after dehydration and reducing the amount of adhesion.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An aqueous coating production wastewater treatment apparatus comprising a stirring tank (1), characterized by: The stirring barrel (1) is internally provided with a rotatable stirring shaft (2), a plurality of equidistantly distributed stirring blades (3) are arranged on the stirring shaft (2), the lower end of the stirring barrel (1) is fixedly connected with a connecting piece (4), the lower end of the connecting piece (4) is fixedly connected with an extrusion cylinder (5), two movable sealing plates (6) are arranged on the connecting piece (4), and the lower end of the stirring shaft (2) is provided with a plurality of equidistantly distributed first scraping plates (7). The extrusion cylinder (5) is internally provided with a movable extrusion plate (8), a plurality of filter holes (9) are arranged on the extrusion plate (8), one side of the extrusion plate (8) is provided with an annular sheet (10), the extrusion cylinder (5) is internally provided with a first abutting frame (11), the first abutting frame (11) is fixedly connected with a first abutting rod (12), and the upper end of the stirring barrel (1) is provided with a movable collecting basket (13).

2. The wastewater treatment apparatus for water-based paint production according to claim 1, characterized by: The extrusion cylinder (5) is fixedly connected with a mounting block (14), the mounting block (14) is rotatably connected with a hinged plate (15), the first torsional spring (16) is rotatably connected between the hinged plate (15) and the mounting block (14), the lower end of the hinged plate (15) is abutted with a second abutting rod (17), the second abutting rod (17) is slidably connected on the extrusion cylinder (5), and one end of the second abutting rod (17) is fixedly connected with a limiting ring (18).

3. The water-based paint production wastewater treatment apparatus according to claim 1, characterized by: The sealing plate (6) is fixedly connected with a guide rod (19), the guide rod (19) is elastically connected with the connecting piece (4) through the first spring (20), the sealing plate (6) is provided with an abutting inclined surface (21), the abutting inclined surface (21) is abutted with a D-shaped abutting block (22), the D-shaped abutting block (22) is slidably connected on the connecting piece (4), and the D-shaped abutting block (22) is fixedly connected with an L-shaped abutting block (23).

4. The water-based paint production wastewater treatment apparatus according to claim 1, characterized by: The stirring barrel (1) is respectively fixedly connected with a first servo motor (24) and a drain pipe (29), the motor shaft of the first servo motor (24) is fixedly connected with the stirring shaft (2), the extrusion cylinder (5) is fixedly connected with a mounting seat (25), the mounting seat (25) is fixedly connected with a second servo motor (26), the motor shaft of the second servo motor (26) is fixedly connected with a rotating block (27), the end of the extrusion cylinder (5) is provided with a sealing cover (28), and the sealing cover (28) is fixedly connected with the rotating block (27).

5. The water-based paint production wastewater treatment apparatus according to claim 1, characterized by: The annular sheet (10) and the extrusion plate (8) are connected with the second spring (30), a plurality of circumferentially equidistantly distributed insertion rods (31) are fixedly connected on the annular sheet (10), the insertion rods (31) are matched with the filter holes (9), the stirring barrel (1) is fixedly connected with an electric push rod (49), the piston rod of the electric push rod (49) is slidably connected on the extrusion cylinder (5), and the piston rod of the electric push rod (49) is fixedly connected with the extrusion plate (8).

6. The water-based paint production wastewater treatment apparatus according to claim 4, characterized by: The inner wall of the extrusion cylinder (5) is provided with a strip-shaped groove (32), the first contact frame (11) is located in the strip-shaped groove (32), the first contact rod (12) is elastically connected with the stirring barrel (1) through a third spring (33), and the first scraper (7) is fixed with a mounting column (34).

7. The water-based paint production wastewater treatment apparatus according to claim 6, characterized by: The stirring blade (3) is fixed with a rotating shaft (36), the rotating shaft (36) is rotatably connected with the stirring shaft (2), and the rotating shaft (36) is fixed with a contact strip (37); the mounting column (34) is fixed with a second contact frame (38), and one end of the contact strip (37) is in contact with the second contact frame (38).

8. The water-based paint production wastewater treatment apparatus according to claim 7, characterized by: The stirring barrel (1) is slidably connected with a third contact frame (39), one end of the third contact frame (39) is in contact with a rotating support (40), the rotating support (40) is elastically connected with the mounting seat (25) through a second torsion spring (41), and the rotating support (40) is fixed with a knocking head (42).

9. The water-based paint production wastewater treatment apparatus according to claim 8, characterized by: The stirring barrel (1) is fixed with a sliding support (43), the sliding support (43) is slidably connected with the collecting basket (13), and the collecting basket (13) is provided with a water filtering hole (44); the stirring barrel (1) is fixed with an annular discharge chute (45), and the stirring shaft (2) is fixed with a second scraper (47).

10. The water-based paint production wastewater treatment device according to claim 9, characterized by: The collecting basket (13) is fixed with an L-shaped contact rod (46), the L-shaped contact rod (46) is elastically connected with the annular discharge chute (45) through a fifth spring (48), and the lower end of the L-shaped contact rod (46) is in contact with the third contact frame (39).

Images