Coating wastewater treatment equipment

Abstract

The utility model discloses coating wastewater treatment equipment which comprises a paint-water separator and a base arranged on the lower side of the paint-water separator and used for supporting, a separation cabin is arranged in the upper right side of the paint-water separator, a deslagging cabin is arranged on the right side of the separation cabin, and chains are arranged at the left end and the right end in the upper side of the separation cabin respectively. A transmission shaft is arranged between the two ends of each chain, a scraping plate is arranged at one end of the upper side of each chain, and when the scraping plates collide with the inner wall due to obstacles or water flow impact and the like in the operation process, if no buffer structure exists, the scraping plates possibly have the conditions of instant blockage, uneven stress of the chains and the like. When being impacted, the square spring can quickly deform and absorb and disperse impact force, so that the scraper blade can stably return to a normal operation state after being collided, the chain is always kept at a relatively stable operation speed, and the continuity and the stability of the operation of the paint-water separator are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of wastewater treatment equipment, and specifically relates to a coating wastewater treatment equipment. BACKGROUND

[0002] The paint-water separator is a device for treating paint-water mixture generated in the coating industry, mainly used for separating paint and water for recycling or safe disposal. In the automobile manufacturing, furniture production, electronic product manufacturing and other industries, the spraying process will generate a large amount of paint mist and wastewater. If these mixtures are directly discharged without treatment, it will cause serious pollution to the environment. The paint-water separator separates paint residue from water by chemical method, so as to realize the recycling of paint residue and the purification of water.

[0003] In the traditional paint-water separator, the design of directly connecting the scraper with the chain has certain limitations. Due to the complexity of the internal environment of the equipment and the persistence of the working load during long-term operation, the scraper is easy to collide rigidly with the inner wall of the paint-water separator. Such collision not only causes the abrasion of the scraper surface and the inner wall to intensify, but also may cause the vibration and noise of the equipment, affecting the stable operation of the equipment. SUMMARY

[0004] The utility model aims at providing a coating wastewater treatment equipment to solve the problem of the design of directly connecting the scraper with the chain in the background technology. Due to the complexity of the internal environment of the equipment and the persistence of the working load during long-term operation, the scraper is easy to collide rigidly with the inner wall of the paint-water separator. Such collision not only causes the abrasion of the scraper surface and the inner wall to intensify, but also may cause the vibration and noise of the equipment, affecting the stable operation of the equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coating wastewater treatment equipment, comprising a paint-water separator and a base arranged on the lower side of the paint-water separator for support;

[0006] The right upper side of the paint-water separator is internally provided with a separation cabin, the right side of the separation cabin is provided with a residue discharge cabin, the left and right ends of the upper side of the separation cabin are respectively provided with chains, the middle of the two ends of the chain is provided with a transmission shaft, and the upper side of one end of the two chains is provided with a scraper;

[0007] The middle upper side of the separation cabin and the residue discharge cabin is provided with a baffle;

[0008] The front upper side of the paint-water separator is provided with a driving motor box, and the lower side of the driving motor box is provided with an air pump box;

[0009] The paint-water separator is connected with an external power supply for power supply;

[0010] The lower side of the scraper and the chain connection at both ends are provided with a connecting plate, the upper side of the connecting plate is provided with a boss, the outer side of the boss is provided with a square spring, the left side of the connecting plate is externally provided with a swing plate, and the inner side connecting part of the swing plate and the connecting plate is provided with a rotating rod.

[0011] Preferably, the connecting plate is connected with the scraper through the boss by means of a sleeve embedding connection mode, and the scraper can move up and down on the boss.

[0012] Preferably, the square spring is arranged outside the boss and is wrapped by the inner side of the scraper, and the upper and lower ends of the square spring are connected with the connecting plate and the scraper through a bolt connection mode, respectively.

[0013] Preferably, the rotating rod and the swing plate are welded, the rotating rod penetrates through the connecting plate, the lower left side of the swing plate and the connecting plate is provided with a movable groove, the swing plate can rotate at a certain angle in the movable groove through the rotating rod, and the swing plate is in an arc shape.

[0014] Preferably, a plurality of leakage holes are equidistantly arranged in the inner side of the upper side of the scraper, the connecting part of the connecting plate and the chain at both ends is provided with a connecting block, and the connecting block is connected with the chain through a bolt connection mode.

[0015] Preferably, the left transmission shaft protrudes from the paint-water separator and is connected with the output shaft in the driving motor box, a sealing ring is arranged at the connecting part of the transmission shaft and the separation cabin for sealing treatment, and a partition plate is arranged at the bottom of the middle part of the separation cabin and the residue discharge cabin for isolation.

[0016] Preferably, a control cabin is arranged at the left front side of the paint-water separator, a connecting pipe is arranged at the middle part of the left front side of the paint-water separator, and a water suction pump for sucking external waste paint medium is arranged at the connecting part of the connecting pipe and the inside of the paint-water separator.

[0017] Compared with the prior art, the paint-water separator has the following advantages

[0018] Beneficial effects:

[0019] 1. In the traditional paint-water separator, the scraper is directly connected with the chain, and in the long-term operation process, the scraper is prone to rigid collision with the inner wall of the paint-water separator, resulting in accelerated wear of the scraper and the inner wall.

[0020] And the connecting plate and the related structure added in the device, through setting the sleeve embedding structure movable up and down between the scraper and the connecting plate, and using the buffering effect of the square spring, the impact force generated by the collision is greatly reduced. This not only reduces the wear of the scraper, reduces the replacement frequency, saves the maintenance cost, but also protects the inner wall of the paint water separator, avoids the damage such as scratches and deformation caused by frequent collision, thereby prolongs the service life of the whole paint water separator device.

[0021] When the scraper encounters obstacles or collides with the inner wall due to water flow impact during operation, if there is no buffering structure, the scraper may appear instantaneous jamming, uneven force on the chain, etc., affecting the overall operation stability of the device. In the improved structure, the square spring can deform quickly when impacted, absorbing and dispersing the impact force, so that the scraper can recover to normal operation state relatively smoothly after collision, ensuring that the chain always maintains a relatively stable running speed, and ensuring the continuity and stability of the paint water separator operation.

[0022] 2. The arc-shaped design of the swing plate and its rotatable structure greatly improves the scraping capacity of the water surface suspended matter. In the process of moving and scraping the suspended matter by the scraper, the swing plate will swing with the movement of the scraper, and the arc-shaped contour can guide and concentrate the suspended matter originally dispersed in a larger range to the scraping path of the scraper like a "converger".

[0023] Compared with the traditional straight plate scraper, the improved structure enables the scraper to take away more suspended matter each time, thereby improving the efficiency of paint water separation per unit time, allowing the device to process more wastewater in a shorter time, and improving the production capacity of the whole coating wastewater treatment device.

[0024] In addition, the distribution of suspended matter in the coating wastewater is often uneven, and part of the suspended matter may adhere to the vicinity of the inner wall of the separation cabin or the corner position with slow water flow. In the rotating process of the swing plate, it can extend to the area outside the normal scraping range of the scraper, and also include the easily missed suspended matter in the scraping range, realize more comprehensive cleaning of the water surface in the separation cabin, reduce the amount of residual suspended matter in the wastewater, and further improve the quality of paint water separation, and provide a better basis for subsequent deep treatment of wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structure diagram of the paint water separator in the utility model.

[0026] Figure 2 It is a structure diagram of the paint water separator in the utility model Figure 1 It is a schematic diagram of the upper side view.

[0027] Figure 3 It is a structure diagram of the scraper structure in the utility model.

[0028] Figure 4 It is the structure schematic view after the scraper moves upwardly in the connecting plate in the utility model.

[0029] Figure 5 It is the structure schematic view after the scraper moves upwardly in the connecting plate in the utility model. Figure 4 It is the structure schematic view after the enlargement of the inner circular area.

[0030] Figure 6 It is the structure schematic view after the scraper moves upwardly in the connecting plate in the utility model. Figure 4 It is the structure schematic view after the scraper moves upwardly in the connecting plate in the utility model.

[0031] In the figure: 1, paint water separator; 2, drive motor box; 3, air pump box; 4, base; 5, control cabin; 6, connecting pipe; 7, slag discharge cabin; 8, separation cabin; 9, chain; 10, scraper; 11, transmission shaft; 12, movable groove; 13, baffle; 14, leakage hole; 15, connecting plate; 16, connecting block; 17, rotating rod; 18, swing plate; 19, boss; 20, square spring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] The utility model provides a kind of coating wastewater treatment equipment as shown in Figures 1-6 Including paint water separator 1 and the base 4 for supporting being set in the lower side of paint water separator 1;

[0034] The right upper side inside of paint water separator 1 is provided with separation cabin 8, the right side of separation cabin 8 is provided with slag discharge cabin 7, and the inside of the upper side of separation cabin 8 is provided with chain 9 at left and right ends respectively, the middle of the two ends of chain 9 is provided with transmission shaft 11, and the upper side one end of two chains 9 is provided with scraper 10;

[0035] The middle upper side of separation cabin 8 and slag discharge cabin 7 is provided with baffle 13;

[0036] The front upper side of paint water separator 1 is provided with drive motor box 2, and the lower side of drive motor box 2 is provided with air pump box 3;

[0037] Paint water separator 1 is connected to external power supply for power supply;

[0038] A connecting plate 15 is provided on the lower side of the scraper 10 and at the connection point of the chains 9 at both ends. A boss 19 is provided on the upper side of the connecting plate 15. A square spring 20 is provided on the outer side of the boss 19. A swing plate 18 is provided on the left outer side of the connecting plate 15. A rotating rod 17 is provided at the connection point between the swing plate 18 and the inner side of the connecting plate 15.

[0039] In this embodiment, the user can connect the external power supply to the paint separator 1. At this time, the control element in the control compartment 5 starts the equipment. The motor in the drive motor box 2 starts to run, and the motor output shaft drives the left transmission shaft 11 to rotate, thereby causing the chain 9 to start circulating. The scraper 10 installed on the chain 9 moves accordingly.

[0040] A water pump draws the waste paint medium to be treated from the outside into the separation chamber 8 through the connecting pipe 6. Inside the separation chamber 8, the paint water is first flocculated by PAC and PAM agents added by the control chamber 5. The flocculated paint residue forms larger particles or flocs. As the chain 9 drives the scraper 10 to move, the scraper 10 moves on the water surface in the separation chamber 8, scraping off suspended matter and flocculated paint residue from the water surface. The drain hole 14 inside the upper side of the scraper 10 allows water to flow back into the separation chamber 8, while suspended matter and paint residue remain on the scraper 10. During the movement of the scraper 10, when it collides with the inner wall of the paint water separator 1, the scraper 10 can move upward on the boss 19, compressing the square spring 20 to buffer the impact force. At the same time, the swing plate 18 on the left side of the connecting plate 15, which swings up and down with the reciprocating movement of the scraper 10, swings through the structure of the rotating rod 17 and the movable groove 12, and its arc shape enhances the ability to scrape suspended matter.

[0041] The scraper 10 transports the scraped suspended solids and paint sludge to one side of the sludge discharge chamber 7. Due to the obstruction of the baffle 13, the suspended solids and paint sludge enter the sludge discharge chamber 7, achieving further separation from water and completing the entire process of paint-water separation treatment.

[0042] like Figures 1-6 As shown, the connecting plate 15 is connected to the scraper 10 via the boss 19 using a nested connection method, and the scraper 10 can move up and down on the boss 19. The square spring 20 is set outside the boss 19 and is wrapped inside the scraper 10. The upper and lower ends of the square spring 20 are connected to the connecting plate 15 and the scraper 10 respectively by bolt connection. The rotating rod 17 and the swing plate 18 are welded together. The rotating rod 17 passes through the connecting plate 15. The lower left side of the swing plate 18 and the connection point of the connecting plate 15 are provided with a movable groove 12. The swing plate 18 can rotate at a certain angle in the movable groove 12 by the rotating rod 17. The swing plate 18 is arc-shaped. Multiple holes 14 are equidistantly opened inside the upper side of the scraper 10. A connecting block 16 is provided at the connection point of the connecting plate 15 and the chains 9 at both ends, and the connecting block 16 is connected to the chain 9 by bolt connection.

[0043] Preferably, before the device is operated, the user first connects the connecting plate 15 to the chain 9 through the connecting block 16 and fastens them with bolts. Then the scraper 10 is nested on the boss 19 of the connecting plate 15 to complete the assembly of the device. When the device is started, the chain 9 rotates under the drive of the transmission shaft 11, which in turn drives the connecting plate 15 and the scraper 10 to move together. During the operation of the scraper 10 with the chain 9, once the scraper 10 collides with the inner wall of the paint-water separator 1, the scraper 10 will move upward along the boss 19.

[0044] The structure uses nested connection to allow the scraper 10 to move relatively on the boss 19. The outside of the boss 19 is wrapped with a square spring 20, the upper and lower ends of which are connected to the connecting plate 15 and the scraper 10 respectively through bolts. When the scraper 10 is subjected to the impact force from the inner wall, the scraper 10 moves upward to press the square spring 20. The square spring 20 deforms under stress, converting the impact force on the scraper 10 into the elastic potential energy of the spring, thereby playing a buffering role, reducing the impact force generated by the direct collision of the scraper 10 with the inner wall, and prolonging the service life of the scraper 10 and the paint-water separator 1.

[0045] The swing plate 18 is connected to the connecting plate 15 through the rotating rod 17, the rotating rod 17 penetrates through the connecting plate 15 and is welded to the swing plate 18, and the lower left side of the swing plate 18 is provided with a movable slot 12. During the operation of the device, the scraper 10 will be upside down during the reciprocating movement on the chain 9, thereby driving the swing plate 18 to move. The swing plate 18 rotates by a certain angle in the movable slot 12 through the rotating rod 17 during movement.

[0046] Because the swing plate 18 is arc-shaped and its installation position and rotating structure are designed reasonably, when the scraper 10 moves on the water surface in the separation cabin 8 to scrape the suspended matter, the swing of the swing plate 18 can expand the scraping range. The arc shape can more effectively guide and gather the suspended matter on the water surface during the swing, so that the scraper 10 can collect more suspended matter during scraping, enhance the ability to scrape the suspended matter on the water surface, and improve the efficiency of paint-water separation.

[0047] As shown in Figures 1-2 the left transmission shaft 11 protrudes from the paint-water separator 1 and the output shaft of the drive motor box 2, and a sealing ring is arranged at the connection between the transmission shaft 11 and the separation cabin 8 for sealing treatment. A partition is arranged at the bottom between the separation cabin 8 and the residue discharge cabin 7 for isolation. A control cabin 5 is arranged at the left front side of the paint-water separator 1, and a connecting pipe 6 is arranged at the left front side of the paint-water separator 1. A water pump for pumping external waste paint medium is arranged at the connection between the connecting pipe 6 and the inside of the paint-water separator 1.

[0048] Preferably, a plurality of leakage holes 14 are equidistantly arranged on the upper side of the scraper 10, which can allow water to flow back into the separation cabin 8 through the leakage holes 14 when the scraper 10 scrapes the suspended matter, and the suspended matter is left on the scraper 10 for subsequent cleaning.

[0049] Preferably, a driving motor box 2 is arranged on the upper side of the paint-water separator 1, and a motor in the driving motor box 2 drives the transmission shaft 11 to rotate through an output shaft, and then drives the chain 9 and the scraper 10 to move. A gas pump box 3 is arranged on the lower side of the driving motor box 2, which can provide a gas source for some gas control components in the paint-water separator 1 according to actual needs, and assist the operation of the equipment.

[0050] A control cabin 5 is arranged at the left front side of the paint-water separator 1, and various control elements are installed in the control cabin 5 for adjusting the operating parameters of the equipment, such as the rotating speed of the motor, the start-stop of the gas pump, etc. In addition, a medicament storage and feeding system is also arranged in the control cabin 5. For paint-water flocculation, medicaments such as polyaluminum chloride (PAC) and polyacrylamide (PAM) are usually stored. When the waste paint water to be treated is pumped into the separation cabin 8 of the paint-water separator 1 through the connecting pipe 6 by the water pump, the control cabin 5 can accurately feed an appropriate amount of PAC according to the preset program or real-time monitoring of water quality data. PAC can hydrolyze to form polynuclear complexes in water, which can compress the double electric layer of colloidal particles in paint water, so that the colloidal particles are destabilized. Then, PAM is fed again, which has a long-chain high-molecular structure and can connect the destabilized colloidal particles through the bridging effect to form larger flocs, thereby realizing the flocculation of paint water and accelerating the separation of paint sludge and water. A connecting pipe 6 is arranged at the left front side of the paint-water separator 1, and a water pump for sucking external waste paint medium is arranged at the connection between the connecting pipe 6 and the inside of the paint-water separator 1. The water pump can suck the external waste paint medium to be treated into the separation cabin 8 of the paint-water separator 1 through the connecting pipe 6 for subsequent paint-water separation treatment.

[0051] Finally, it should be pointed out that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A coating wastewater treatment device, comprising a paint separator (1) and a base (4) disposed on the lower side of the paint separator (1) for support; The paint separator (1) has a separation chamber (8) inside the upper right side, a slag discharge chamber (7) on the right side of the separation chamber (8), and chains (9) on the left and right ends of the upper side of the separation chamber (8). A drive shaft (11) is provided in the middle of the two ends of the chains (9), and a scraper (10) is provided at one end of the upper side of the two chains (9). A baffle (13) is provided on the upper middle side of the separation chamber (8) and the slag discharge chamber (7); The paint separator (1) is provided with a drive motor box (2) on the upper front side, and an air pump box (3) is provided on the lower side of the drive motor box (2). The paint-water separator (1) is connected to an external power source for power supply; Its features are: A connecting plate (15) is provided at the lower side of the scraper (10) and at the connection point of the chains (9) at both ends. A boss (19) is provided on the upper side of the connecting plate (15). A square spring (20) is provided at the outer side of the boss (19). A swing plate (18) is provided on the outer left side of the connecting plate (15). A rotating rod (17) is provided at the connection point between the swing plate (18) and the inner side of the connecting plate (15).

2. The coating wastewater treatment equipment according to claim 1, characterized in that: The connecting plate (15) is connected to the scraper (10) by means of a boss (19) using a nested connection method, and the scraper (10) can move up and down on the boss (19).

3. The coating wastewater treatment equipment according to claim 2, characterized in that: The square spring (20) is located outside the boss (19) and is wrapped inside the scraper (10). The upper and lower ends of the square spring (20) are connected to the connecting plate (15) and the scraper (10) respectively by bolt connection.

4. The coating wastewater treatment equipment according to claim 3, characterized in that: The rotating rod (17) and the swing plate (18) are welded together. The rotating rod (17) passes through the connecting plate (15). The swing plate (18) has a movable groove (12) at the connection between the lower left side and the connecting plate (15). The swing plate (18) can rotate at a certain angle in the movable groove (12) through the rotating rod (17). The swing plate (18) is arc-shaped.

5. The coating wastewater treatment equipment according to claim 4, characterized in that: The scraper (10) has multiple holes (14) evenly spaced on the upper side. A connecting block (16) is provided at the connection between the connecting plate (15) and the chains (9) at both ends. The connecting block (16) is connected to the chain (9) by bolts.

6. The coating wastewater treatment equipment according to claim 1, characterized in that: The drive shaft (11) on the left protrudes from the output shaft of the paint separator (1) and the drive motor box (2), and a sealing ring is provided at the connection between the drive shaft (11) and the separation chamber (8) for sealing treatment. A partition is provided at the bottom between the separation chamber (8) and the slag discharge chamber (7) for isolation.

7. The coating wastewater treatment equipment according to claim 1, characterized in that: A control compartment (5) is provided on the left front side of the paint separator (1), and a connecting pipe (6) is provided in the middle of the left front side of the paint separator (1). A water pump for sucking up external waste paint medium is provided at the connection between the connecting pipe (6) and the inside of the paint separator (1).

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