A paint residue separation device for automobile painting

Abstract

The invention relates to the technical field of wastewater treatment, and specifically discloses a paint residue separation device for automobile painting, comprising: an outer cylinder and an inner cylinder coaxially distributed in the outer cylinder; a turbulent flocculant collection unit is arranged in the outer cylinder, comprising a plurality of guide rods and a movable plate slidably sleeved on the guide rods, the lower end of the guide rod is sleeved with a first spring abutting against the movable plate, a plurality of through grooves are opened circumferentially on the movable plate, and a filter plate that can be opened and closed is connected to the bottom of the through groove; when the movable plate moves upward quickly, it can impact the upper water flow, thereby promoting the full mixing of flocculant and wastewater, which is beneficial for the flocculant to diffuse quickly and evenly into the wastewater, forming more micro-flocculants, and significantly improving the flocculation effect; the movable plate moves downward at a uniform and stable speed, the filter plate seals the through groove, the flocculants are intercepted below the movable plate, and the wastewater flows back upward to above the movable plate through the filter plate and the through groove, so that the flocculants have more time to settle and be captured, thereby improving the capture efficiency of the flocculants.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and more specifically to a paint residue separation device for automobile painting. Background Art

[0002] In automobile painting workshops, water-based paint is usually used to spray paint the surface of automobile parts. A circulating water pool is set up in the spraying room, and the water in the circulating water pool is used to absorb the excess paint spray. In order to meet the reuse of circulating water and avoid water pollution, the wastewater that absorbs the paint spray needs to be treated. Flocculants are added to the circulating wastewater to flocculate the paint components in the wastewater to form paint residues and separate them from the wastewater. However, the existing separation device cannot effectively break the laminar flow state of the internal water flow, so that the flocculant cannot be quickly and evenly diffused into the wastewater, resulting in uneven floc formation. In addition, the existing separation device lacks an effective floc capture mechanism, resulting in low floc capture efficiency, thereby affecting the separation quality of paint residue. Summary of the invention

[0003] In order to overcome the above technical problems, the present invention proposes a paint residue separation device for automobile painting.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A paint residue separation device for automobile painting, comprising:

[0006] The outer cylinder has an input terminal and a vent pipe connected to its upper end, a slag discharge channel connected to its lower end, a coarse filter plate and a spiral separation plate arranged in sequence from top to bottom in the outer cylinder, and a convex ridge arranged on the spiral surface of the upper end of the spiral separation plate;

[0007] The inner cylinder is coaxially distributed in the outer cylinder and the bottom is connected to the inside of the outer cylinder. The upper end of the inner cylinder is connected to an output terminal that passes through the outer cylinder;

[0008] The turbulent flocculant collecting unit is arranged in the outer cylinder, and comprises a plurality of guide rods fixed vertically on the inner wall of the outer cylinder in the circumferential direction and a movable plate slidably sleeved on the guide rods, the lower end of the guide rods is sleeved with a first spring abutting against the movable plate, a plurality of through grooves are opened circumferentially on the movable plate, and a filter plate that can be opened and closed is connected to the bottom of the through grooves;

[0009] The driving unit comprises a driving motor fixed to the lower end of the slag discharge channel, the output end of the driving motor is connected to a driving shaft extending into the outer cylinder, a spiral groove is arranged on the driving shaft, and a latch which is movably matched with the spiral groove is arranged in the movable plate.

[0010] As a further solution of the present invention: the pin is horizontally slidably embedded in the movable plate, a magnet matching the pin is provided on one side of the lower end of the guide rod, a wedge block matching the pin is provided on one side of the upper end of the guide rod, and a notch for accommodating the magnet and the wedge block is opened on the movable plate.

[0011] As a further solution of the present invention: the filter plate is hinged below the corresponding through slot, and an elastic band is connected between the filter plate and the movable plate.

[0012] As a further solution of the present invention: a flocculant delivery member is arranged at the center of the movable plate, and the flocculant delivery member includes a flexible capsule, and a plurality of injection holes are opened circumferentially on the flexible capsule; a flow channel for conveying flocculants is opened in the driving shaft, and a plurality of first through holes connected to the interior of the outer cylinder are opened at the upper end of the flow channel.

[0013] As a further solution of the present invention: a transition chamber is provided in the slag discharge channel, one side of the transition chamber is connected to a liquid inlet pipe, the transition chamber is sealed to the drive shaft via a sealing ring, and a plurality of second through holes connected to the interior of the transition chamber are provided at the lower end of the flow channel.

[0014] As a further solution of the present invention: a pressure plate is arranged at the upper end of the flexible bladder, and a second spring abutting against the upper end surface of the movable plate is arranged at the lower end surface of the pressure plate; a limit block adapted to the pressure plate is arranged at the upper end of the drive shaft.

[0015] As a further solution of the present invention: a fixing ring is installed in the outer cylinder through a connecting frame, a sealing ring adapted to the driving shaft is slidably installed in the fixing ring, and a third spring is arranged between the upper end of the sealing ring and the fixing ring.

[0016] As a further solution of the present invention: a slag collecting chamber is arranged in the slag discharge channel, one side of the slag collecting chamber is connected to an inclined slag discharge chamber, and one end of the slag discharge chamber away from the slag collecting chamber is connected to a slag discharge pipe; a slag pushing plate adapted to the slag collecting chamber is arranged on the driving shaft.

[0017] As a further solution of the present invention: the spiral separation plate is movably sleeved on the outside of the inner cylinder, and the upper end of the spiral separation plate is fixedly connected to the outer wall of the inner cylinder; the upper end of the drive shaft is connected to a plurality of levers of different lengths, and the levers abut against the lower end of the spiral separation plate.

[0018] As a further solution of the present invention: a plurality of fine filter holes are circumferentially opened on the side wall of the lower end of the inner cylinder, and a plurality of slag discharge holes are circumferentially opened on the bottom of the inner cylinder; a rotating shaft is coaxially fixed to the upper end of the drive shaft and extends into the inner cylinder, and a scraper adapted to the fine filter holes is installed on the rotating shaft.

[0019] Beneficial effects of the present invention:

[0020] When the movable plate in the present invention moves up quickly, it can impact the upper water flow, increase the collision chance between the flocculant and the suspended particles in the wastewater, thereby promoting the full mixing of the flocculant and the wastewater, and the turbulent water flow state is conducive to the rapid and uniform diffusion of the flocculant into the wastewater, forming more micro-flocculants, and significantly improving the flocculation effect; while the movable plate moves up, the filter plate flips down and opens, so that the through slot is fully connected, and the wastewater on the upper layer of the movable plate and the flocculants can smoothly pass through the through slot into the bottom of the movable plate; the downward movement of the movable plate is uniform and stable, which is helpful for the filter plate The initial state is kept unchanged and the through slot is effectively sealed. In this process, the flocs are intercepted under the movable plate, while the wastewater flows back upward to the top of the movable plate through the filter plate and the through slot, so that the flocs have more time to settle and be captured, thereby improving the floc capture efficiency. During the downward movement of the movable plate, the sealing effect of the filter plate enables the flocs to be captured under the movable plate, while the clean water returns to the top of the movable plate through the filter plate and the through slot, thus achieving effective separation of wastewater and flocs, which not only improves the floc capture efficiency, but also ensures the quality of the treated wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection structure between the turbulent flow flocculation unit and the driving shaft in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the turbulent flow flocculation unit in the present invention;

[0026] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 3 Enlarged view of point B in the middle;

[0028] Figure 7 It is a structural schematic diagram of the slag discharge channel in the present invention;

[0029] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0030] Fig. 9 It is a schematic diagram of the structure of the coarse filter plate and the spiral separation plate in the present invention;

[0031] Fig.10It is a schematic diagram of the structure of the lever and the scraper in the present invention.

[0032] In the figure:

[0033] 100, outer cylinder; 110, input end; 120, slag discharge channel; 121, slag collecting chamber; 122, slag discharge chamber; 123, slag discharge pipe; 124, transition chamber; 125, sealing ring; 126, liquid inlet pipe; 130, ventilation pipe; 140, coarse filter plate; 150, spiral separation plate;

[0034] 200, inner cylinder; 210, output end; 220, fine filter hole; 230, slag discharge hole;

[0035] 300, turbulent flocculant collecting unit; 310, movable plate; 311, through groove; 312, filter plate; 313, elastic band; 314, notch; 320, guide rod; 330, first spring; 340, bayonet; 350, flocculant delivery member; 351, flexible capsule; 352, pressure plate; 353, injection hole; 354, second spring; 360, fixing ring; 361, connecting frame; 362, sealing collar; 363, third spring; 370, magnet; 380, wedge block;

[0036] 400, driving unit; 410, driving motor; 420, driving shaft; 421, spiral groove; 422, flow channel; 423, first through hole; 424, second through hole; 425, slag pusher; 430, limit block; 440, lever; 450, rotating shaft; 460, scraper. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1 and Figure 2The present invention discloses a paint residue separation device for automobile painting, comprising an outer cylinder 100, an inner cylinder 200, a turbulent flocculant unit 300 and a driving unit 400. The upper end of the outer cylinder 100 is connected to an input terminal 110 and a vent pipe 130, the lower end of the outer cylinder 100 is connected to a slag discharge channel 120, a coarse filter plate 140 and a spiral separation plate 150 are sequentially arranged in the outer cylinder 100 from top to bottom, and a convex ridge is arranged on the spiral surface of the upper end of the spiral separation plate 150; the inner cylinder 200 is coaxially distributed in the outer cylinder 100 and the bottom is connected to the inside of the outer cylinder 100, and the upper end of the inner cylinder 200 is connected to an output terminal 210 that penetrates the outer cylinder 100;

[0039] See also Figure 3 and Figure 4 The turbulent flocculant collecting unit 300 is arranged in the outer cylinder 100, and includes a plurality of guide rods 320 vertically fixed on the inner wall of the outer cylinder 100 in the circumferential direction and a movable plate 310 slidably sleeved on the guide rods 320, and a first spring 330 abutting against the movable plate 310 is sleeved on the lower end of the guide rods 320, and a plurality of through grooves 311 are opened circumferentially on the movable plate 310, and a filter plate 312 that can be opened and closed is connected to the bottom of the through grooves 311;

[0040] See also Figure 2 and Figure 3 The driving unit 400 includes a driving motor 410 fixed to the lower end of the slag discharge channel 120, the output end of the driving motor 410 is connected to a driving shaft 420 extending into the outer cylinder 100, the driving shaft 420 is provided with a spiral groove 421, and the movable plate 310 is provided with a bayonet 340 that is movably matched with the spiral groove 421;

[0041] Specifically, the paint spraying wastewater is introduced into the outer cylinder 100 through the input end 110. During the downward flow of the wastewater, the large particles of paint residue in the wastewater are first intercepted by the coarse filter plate 140. Then, during the downward spiral flow of the wastewater along the spiral separation plate 150, the convex ridges on the spiral surface of the spiral separation plate 150 are used to block and separate the particle impurities in the wastewater layer by layer, so that the particle impurities are retained in the area between adjacent convex ridges. After the coarse filtration and spiral separation, the wastewater reaches the lower end of the outer cylinder 100.

[0042] A flocculant is introduced into the outer cylinder 100 from the bottom of the outer cylinder 100 to make the flocculant contact with the wastewater, so that the paint particles in the wastewater form larger flocs and gradually settle; when the driving unit 400 drives the movable plate 310 to move downward to the lower end of the guide rod 320, the latch 340 in the movable plate 310 is disengaged from the spiral groove 421, and the movable plate 310 can be ejected upward under the elastic force of the first spring 330. Under the action of inertia, the filter plate 312 is flipped downward and opened, so that the through groove 311 is fully conductive, so that the wastewater on the upper layer of the movable plate 310 and the flocs can enter the lower part of the movable plate 310 through the through groove 311. At the same time, the movable plate 310 that pops up quickly can also impact the upper layer of wastewater, causing the water flow to be turbulent, so as to achieve full contact and mixing of the flocculant and the wastewater, thereby improving the flocculation effect;

[0043] When the movable plate 310 reaches the upper end of the guide rod 320, the latch 340 is again embedded in the spiral groove 421, and the filter plate 312 returns to its initial state and seals the through groove 311. The drive motor 410 drives the drive shaft 420 to rotate, and the spiral groove 421 on the drive shaft 420 and the latch 340 in the movable plate 310 are adapted to each other, so as to drive the movable plate 310 to move downward along the guide rod 320 at a uniform and stable speed. At this time, the filter plate 312 keeps its initial state unchanged. During the downward movement of the movable plate 310, the filter plate 312 can be used to intercept the flocs under the movable plate 310, and the wastewater flows back downward to the top of the movable plate 310 through the filter plate 312 and the through groove 311. This is repeated many times, so as to achieve impact mixing of the wastewater and the flocculant and multiple capture of the flocs, and finally the purified wastewater is discharged from the inner cylinder 200 and the output end 210.

[0044] It is worth noting that, in the present invention, through the structural design of the outer cylinder 100 and the inner cylinder 200, and the use of the coarse filter plate 140 and the spiral separation plate 150, the large particles of paint residue in the wastewater are effectively intercepted and separated layer by layer, thereby improving the separation efficiency of the paint residue;

[0045] When the movable plate 310 moves upward rapidly, due to its high speed and violent movement, this rapid movement can generate a strong water flow impact, which helps to break the laminar flow state of the water flow, increase the collision opportunities between the flocculant and the suspended particles in the wastewater, and thus promote the full mixing of the flocculant and the wastewater. This turbulent water flow state is conducive to the rapid and uniform diffusion of the flocculant into the wastewater, forming more micro-flocculation bodies, and significantly improving the flocculation effect; while the movable plate 310 moves upward, the filter plate 312 flips downward and opens, so that the through slot 311 is fully connected. This design allows the wastewater and floccules on the upper layer of the movable plate 310 to pass smoothly through the through slot 311 and enter the lower part of the movable plate 310. At the same time, due to the rapid upward movement of the movable plate 310, the turbulence of the water flow further promotes the mixing of the flocculant and the wastewater;

[0046] Relatively speaking, the downward movement of the movable plate 310 is uniform and smooth, which helps the filter plate 312 to maintain its initial state unchanged and effectively seal the through groove 311. In this process, the flocs are intercepted under the movable plate 310, while the wastewater flows back upward to the top of the movable plate 310 through the filter plate 312 and the through groove 311. This smooth operation reduces the disturbance of the water flow, allowing the flocs to have more time to settle and be captured, thereby improving the floc capture efficiency; during the downward movement of the movable plate 310, the sealing effect of the filter plate 312 allows the flocs to be captured under the movable plate 310, while the clean water returns to the top of the movable plate 310 through the filter plate 312 and the through groove 311, thereby achieving effective separation of wastewater and flocs. This design not only improves the floc capture efficiency, but also ensures the quality of the treated wastewater.

[0047] In one embodiment, when the driving shaft 420 drives the movable plate 310 to move downward, the latch 340 needs to be embedded in the spiral groove 421, and when the movable plate 310 pops up from the lower end of the guide rod 320, the latch 340 needs to be disengaged from the spiral groove 421. Figure 3 and Figure 4 The bayonet 340 is horizontally slidably embedded in the movable plate 310, a magnet 370 adapted to the bayonet 340 is provided on one side of the lower end of the guide rod 320, a wedge block 380 adapted to the bayonet 340 is provided on one side of the upper end of the guide rod 320, and a notch 314 for accommodating the magnet 370 and the wedge block 380 is opened on the movable plate 310;

[0048] Specifically, when the movable plate 310 reaches the upper end of the guide rod 320, the latch 340 is squeezed by the wedge block 380, so that it slides horizontally toward the end away from the wedge block 380 until the other end of the latch 340 is stuck in the spiral groove 421, so that the latch 340 and the drive shaft 420 are adapted to be connected, and then the movable plate 310 is driven to move downward smoothly through the drive shaft 420;

[0049] When the movable plate 310 reaches the lower end of the guide rod 320, the latch 340 is aligned with the magnet 370, and the magnet 370 can be used to magnetically attract the latch 340. Accordingly, the latch 340 is made of iron material or magnetic material, and the end of the latch 340 away from the magnet 370 is removed from the spiral groove 421 to release the connection between the movable plate 310 and the drive shaft 420, and the compressed first spring 330 can be used to pop the movable plate 310 upward.

[0050] It should be noted that the above structure realizes the quick connection and disconnection between the movable plate 310 and the drive shaft 420, so as to achieve the effect of the movable plate 310 moving down smoothly and quickly springing up, simplifying the connection and release operation between the movable plate 310 and the drive shaft 420, making the operation easier and reducing the complexity of the operation;

[0051] When the movable plate 310 reaches the upper end of the guide rod 320, the bayonet 340 is squeezed by the wedge block 380, ensuring a stable connection with the spiral groove 421, so that the movable plate 310 can move downward smoothly through the drive shaft 420, which is very important for maintaining uniform distribution of water flow and flocculation effect;

[0052] By utilizing the magnetic attraction of the magnet 370, the movable plate 310 can be quickly disengaged from the spiral groove 421. This quick release mechanism allows the movable plate 310 to quickly bounce up with the elastic force of the first spring 330, increasing the turbulence of the water flow and facilitating the mixing of the flocculant and the wastewater.

[0053] Furthermore, considering that the filter plate 312 needs to be passively opened during the upward pop-up process of the movable plate 310, and the filter plate 312 needs to keep the state of the isolation slot 311 unchanged during the stable downward movement of the movable plate 310, for this purpose, please refer to Figure 4 The filter plate 312 is hinged below the corresponding through slot 311, and an elastic band 313 is connected between the filter plate 312 and the movable plate 310;

[0054] Specifically, in the initial state, due to the tension of the elastic band 313, the filter plate 312 can always cover the bottom of the through groove 311, thereby isolating the through groove 311;

[0055] When the movable plate 310 is in the process of popping up, under the action of inertia, the filter plate 312 can overcome the pulling force of the elastic band 313 and flip downward to open, so that the through groove 311 is fully connected, so that the wastewater carrying flocs above the movable plate 310 can be transferred to the bottom of the movable plate 310 through the through groove 311;

[0056] During the stable downward movement of the movable plate 310, since the filter plate 312 is no longer affected by inertia, the filter plate 312 can maintain its initial state under the action of the elastic band 313, so that the through groove 311 is always sealed. In this way, clean water can flow to the top of the movable plate 310 through the filter plate 312, while the flocs are intercepted under the movable plate 310, so as to achieve effective separation of the flocs and wastewater.

[0057] It should be noted that the above technical solution realizes the effective separation of flocs and clean water in the wastewater treatment process through the linkage mechanism of the movable plate 310 and the filter plate 312, and the application of the elastic band 313; the automatic opening and sealing mechanism of the filter plate 312 improves the degree of automation of the treatment process and ensures the continuity and efficiency of wastewater treatment; when the movable plate 310 is ejected, the passive opening of the filter plate 312 enables the flocs to be smoothly transferred to the bottom of the movable plate 310 through the through groove 311, and when the movable plate 310 is downward, the sealing effect of the filter plate 312 intercepts the flocs, thereby realizing the effective separation of the flocs and clean water.

[0058] In another embodiment, as the wastewater is continuously flowing, the flocculant can be supplied in batches according to the flow rate of the wastewater, so that the flocculant concentration in the wastewater at each stage remains relatively stable. For this purpose, please refer to Figure 5 and Figure 6 A flocculant delivery member 350 is disposed at the center of the movable plate 310, and the flocculant delivery member 350 includes a flexible capsule 351, and a plurality of injection holes 353 are opened on the circumference of the flexible capsule 351; a flow channel 422 for conveying flocculants is opened in the driving shaft 420, and a plurality of first through holes 423 communicating with the interior of the outer cylinder 100 are opened at the upper end of the flow channel 422;

[0059] Specifically, when the movable plate 310 reaches the lower end of the guide rod 320, the flexible capsule 351 just covers the outside of the flow channel 422. At this time, the flocculant in the flow channel 422 can be injected into the flexible capsule 351 through the first through hole 423. Then, when the movable plate 310 pops up, the flexible capsule 351 is squeezed by the upper wastewater and compressed. When the flexible capsule 351 is squeezed, the flocculant in the flexible capsule 351 can be sprayed out from the spray holes 353 to the surroundings, so that the flocculant is quickly diffused into the surrounding wastewater, thereby improving the mixing effect of the flocculant and the wastewater.

[0060] It should be noted that when the flocculant is injected into the flexible capsule 351, the flocculant will first merge with the wastewater contained in the flexible capsule 351, and then the wastewater mixed with the flocculant will be ejected from the flexible capsule 351, so that the flocculant is evenly diffused to the surrounding wastewater; in addition, the process of injecting the flocculant into the flexible capsule 351 by the flow channel 422 is completed instantly, so in the process that the movable plate 310 reaches the lower end of the guide rod 320 and then pops up upward, it is possible to ensure a single injection of the flocculant in the flexible capsule 351;

[0061] The above technical solution realizes efficient and uniform delivery of flocculants through the design of the flexible capsule 351 on the movable plate 310. By supplying flocculants in batches, the delivery amount of flocculants can be adjusted according to the wastewater flow rate, so as to maintain a relatively stable flocculant concentration in the wastewater and improve the treatment efficiency.

[0062] The flexible capsule 351 can be automatically squeezed and contracted during the upward movement of the movable plate 310, thereby quickly diffusing the flocculant from the injection hole 353 on the flexible capsule 351 to the surrounding wastewater, thereby improving the mixing effect of the flocculant and the wastewater. Moreover, the flocculant is first mixed with part of the wastewater in the flexible capsule 351 and then sprayed out, so that the distribution of the flocculant in the wastewater is more uniform, thereby improving the flocculation effect.

[0063] See also Figure 7 and Figure 8 In order to supply the flocculant in the flow channel 422, a transition chamber 124 is provided in the slag discharge channel 120, one side of the transition chamber 124 is connected to a liquid inlet pipe 126, the transition chamber 124 is sealed and connected to the drive shaft 420 via a sealing ring 125, and a plurality of second through holes 424 communicating with the interior of the transition chamber 124 are provided at the lower end of the flow channel 422;

[0064] Specifically, the flocculant enters the transition chamber 124 through the liquid inlet pipe 126, then enters the flow channel 422 inside the drive shaft 420 through the second through hole 424, and then flows out from the first through hole 423, so as to fill the flocculant in the flexible capsule 351;

[0065] It is worth noting that, since the driving shaft 420 is continuously rotating, the structural design of the transition cavity 124, the first through hole 423 and the second through hole 424 can ensure the continuous and stable delivery of flocculant into the flocculant delivery member 350 when the driving shaft 420 is continuously rotating.

[0066] For further information, see Figure 3 and Figure 5 In order to improve the spraying effect of the flocculant inside the flexible capsule 351, a pressure plate 352 is provided at the upper end of the flexible capsule 351, and a second spring 354 is provided at the lower end surface of the pressure plate 352 to abut against the upper end surface of the movable plate 310; a limit block 430 adapted to the pressure plate 352 is provided at the upper end of the driving shaft 420;

[0067] Specifically, during the process of the movable plate 310 popping up, part of the flocculant in the flexible capsule 351 can be sprayed out under the squeezing effect of the upper wastewater on the flexible capsule 351, but inevitably a small part of the flocculant is still retained in the flexible capsule 351. When the movable plate 310 reaches the upper end of the guide rod 320, the pressing plate 352 is restricted by the limit block 430 and collides with the pressing plate 352, so that the flexible capsule 351 is completely squeezed into place, and then the flocculant in the flexible capsule 351 that has not been sprayed out is fully squeezed out again, so as to promote the complete emptying of the flocculant in the flexible capsule 351 and improve the mixing effect of the flocculant and the peripheral wastewater;

[0068] The above technical solution further optimizes the spraying effect and mixing efficiency of the flocculant by arranging a pressure plate 352 and a second spring 354 on the flexible capsule 351, and arranging a limit block 430 on the driving shaft 420; through the cooperation of the pressure plate 352 and the limit block 430, it is ensured that the flocculant in the flexible capsule 351 is completely squeezed out when the movable plate 310 reaches the upper end of the guide rod 320, thereby avoiding the residue of the flocculant; the complete emptying of the flocculant in the flexible capsule 351 helps to improve the mixing effect of the flocculant and the surrounding wastewater, ensure the complete use of the flocculant, reduce the waste of the flocculant, reduce the treatment cost, and at the same time improve the efficiency of the entire wastewater treatment process. The more complete mixing of the flocculant and the wastewater can enhance the flocculation effect, so that the suspended particles in the wastewater are condensed into flocs faster and more evenly.

[0069] Furthermore, considering that the flocculant is added to the flexible capsule 351 periodically, that is, when the movable plate 310 leaves the lower end of the guide rod 320, the first through hole 423 can be blocked to avoid wasting the flocculant. Figure 6 A fixing ring 360 is installed in the outer cylinder 100 through a connecting frame 361, a sealing ring 362 adapted to the driving shaft 420 is slidably installed in the fixing ring 360, and a third spring 363 is provided between the upper end of the sealing ring 362 and the fixing ring 360;

[0070] Specifically, in the initial state, due to the elastic force of the third spring 363, the sealing ring 362 always pops up relative to the fixed ring 360, so that the second through hole 424 can be just blocked, so that the flocculant in the flow channel 422 cannot flow out temporarily. When the movable plate 310 moves downward to the lower end of the guide rod 320, the movable plate 310 contacts the sealing ring 362 and pushes the sealing ring 362 downward, so that the sealing ring 362 is gradually misaligned with the second through hole 424. At the same time, the third spring 363 is compressed, and the flocculant in the flow channel 422 can be injected into the flexible capsule 351 through the second through hole 424; when the movable plate 310 is separated from the sealing ring 362, the sealing ring 362 can be reset again under the elastic force of the third spring 363 and block the second through hole 424.

[0071] The above technical solution realizes precise control of the supply of flocculant by installing a fixing ring 360 and a sealing ring 362 in the outer cylinder 100 and utilizing the elastic force of the third spring 363. The supply of flocculant is controlled by the up and down movement of the sealing ring 362, thereby ensuring that the filling of flocculant is carried out periodically and on demand, and improving the accuracy of flocculant use; when the movable plate 310 leaves the lower end of the guide rod 320, the sealing ring 362 automatically blocks the second through hole 424, thereby avoiding continuous outflow and waste of flocculant; precise flocculant control helps to improve the efficiency of wastewater treatment and enables the flocculant to be mixed with the wastewater more effectively.

[0072] In further embodiments, see Figure 7 The slag collecting chamber 121 is provided in the slag discharge channel 120, one side of the slag collecting chamber 121 is connected to an inclined slag discharge chamber 122, and one end of the slag discharge chamber 122 away from the slag collecting chamber 121 is connected to a slag discharge pipe 123; the driving shaft 420 is provided with a slag pushing plate 425 adapted to the slag collecting chamber 121;

[0073] Specifically, after the separation of wastewater paint residue is completed, the flocs and paint residue at the bottom of the outer cylinder 100 gradually settle and accumulate in the residue collecting chamber 121, and the slag pushing plate 425 is driven to rotate synchronously by the driving shaft 420, so that the slag in the residue collecting chamber 121 is periodically pushed into the residue discharge chamber 122 by the slag pushing plate 425, and discharged through the residue discharge pipe 123, so as to realize the discharge and cleaning of the slag.

[0074] For further information, see Fig. 9 and Fig.10 The spiral separation plate 150 is movably sleeved on the outer side of the inner cylinder 200, and the upper end of the spiral separation plate 150 is fixedly connected to the outer wall of the inner cylinder 200; the upper end of the driving shaft 420 is connected to a plurality of levers 440 of different lengths, and the levers 440 abut against the lower end of the spiral separation plate 150;

[0075] Specifically, during the rotation of the driving shaft 420, it can drive the levers 440 of different lengths to rotate synchronously. Since the levers 440 of different lengths are respectively abutted against the spiral surfaces at different parts of the lower end of the spiral separation plate 150, the entire spiral separation plate 150 can be pushed to undergo periodic elastic compression and stretching movements in the vertical direction, so that the pitch of the spiral separation plate 150 changes continuously, which is beneficial to the extrusion and mixing of the wastewater flowing through the spiral separation plate 150, and promotes the turbulence effect of the wastewater, so that the wastewater and the flocculant are further fully integrated.

[0076] For further information, see Fig.10The lower end side wall of the inner cylinder 200 is provided with a plurality of fine filter holes 220 in the circumferential direction, and the bottom of the inner cylinder 200 is provided with a plurality of slag discharge holes 230 in the circumferential direction; a rotating shaft 450 penetrating into the inner cylinder 200 is coaxially fixed to the upper end of the driving shaft 420, and a scraper 460 adapted to the fine filter hole 220 is installed on the rotating shaft 450;

[0077] Specifically, the fine filter holes 220 can further fine filter the wastewater entering the inner drum 200 to filter out fine particle impurities. After the paint residue is separated, the drive shaft 420 drives the scraper 460 on the rotating shaft 450 to rotate synchronously, so that the scraper 460 can be used to clean the fine filter holes 220 on the side wall of the inner drum 200, and the fine particles retained in the fine filter holes 220 are scraped off, and then the scraped and fallen fine particles are discharged from the inner drum 200 through the slag discharge hole 230 at the bottom.

[0078] It is worth noting that the above technical solution realizes the functions of slag discharge, spiral separation and cleaning of fine filter holes 220 in the wastewater treatment process through a series of mechanical structures associated with the drive shaft 420. The integrated design of each structure and the drive shaft 420 makes the entire device compact, reduces space occupancy, realizes automatic control of multiple functions, simplifies the operating process, and effectively improves the overall processing efficiency.

[0079] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A paint residue separation device for automobile painting, characterized in that: include: The outer cylinder (100) has an upper end connected to an input terminal (110) and a vent pipe (130), a lower end connected to a slag discharge channel (120), and a coarse filter plate (140) and a spiral separation plate (150) arranged in sequence from top to bottom in the outer cylinder (100), wherein a convex ridge is arranged on a spiral surface at an upper end of the spiral separation plate (150); An inner cylinder (200) is coaxially distributed inside the outer cylinder (100) and its bottom is connected to the interior of the outer cylinder (100); the upper end of the inner cylinder (200) is connected to an output terminal (210) that passes through the outer cylinder (100); A turbulent flocculant collecting unit (300) is arranged in the outer cylinder (100), comprising a plurality of guide rods (320) circumferentially and vertically fixed on the inner wall of the outer cylinder (100) and a movable plate (310) slidably sleeved on the guide rods (320), wherein the lower end of the guide rods (320) is sleeved with a first spring (330) abutting against the movable plate (310), and a plurality of through grooves (311) are circumferentially formed on the movable plate (310), and a filter screen plate (312) that can be opened and closed is connected to the bottom of the through grooves (311); The driving unit (400) comprises a driving motor (410) fixed to the lower end of the slag discharge channel (120), the output end of the driving motor (410) being connected to a driving shaft (420) extending into the outer cylinder (100), the driving shaft (420) being provided with a spiral groove (421), and the movable plate (310) being provided with a latch (340) movably adapted to the spiral groove (421).

2. A paint residue separation device for automobile painting according to claim 1, characterized in that: The latch (340) is horizontally slidably embedded in the movable plate (310); a magnet (370) adapted to the latch (340) is provided on one side of the lower end of the guide rod (320); a wedge block (380) adapted to the latch (340) is provided on one side of the upper end of the guide rod (320); and a notch (314) for accommodating the magnet (370) and the wedge block (380) is provided on the movable plate (310).

3. A paint residue separation device for automobile painting according to claim 2, characterized in that: The filter plate (312) is hinged below the corresponding through slot (311), and an elastic band (313) is connected between the filter plate (312) and the movable plate (310).

4. A paint residue separation device for automobile painting according to claim 1, characterized in that: A flocculant delivery member (350) is arranged at the center of the movable plate (310), and the flocculant delivery member (350) comprises a flexible capsule (351), and a plurality of injection holes (353) are circumferentially provided on the flexible capsule (351); a flow channel (422) for conveying flocculants is provided in the driving shaft (420), and a plurality of first through holes (423) communicating with the interior of the outer cylinder (100) are provided at the upper end of the flow channel (422).

5. A paint residue separation device for automobile painting according to claim 4, characterized in that: A transition chamber (124) is provided in the slag discharge channel (120), one side of the transition chamber (124) is connected to a liquid inlet pipe (126), the transition chamber (124) and the drive shaft (420) are sealed via a sealing ring (125), and a plurality of second through holes (424) connected to the interior of the transition chamber (124) are provided at the lower end of the flow channel (422).

6. A paint residue separation device for automobile painting according to claim 5, characterized in that: A pressure plate (352) is provided at the upper end of the flexible sac (351), and a second spring (354) is provided at the lower end surface of the pressure plate (352) for contact with the upper end surface of the movable plate (310); a limit block (430) adapted to the pressure plate (352) is provided at the upper end of the drive shaft (420).

7. A paint residue separation device for automobile painting according to claim 6, characterized in that: A fixing ring (360) is installed in the outer cylinder (100) via a connecting frame (361), a sealing collar (362) adapted to the drive shaft (420) is slidably installed in the fixing ring (360), and a third spring (363) is provided between the upper end of the sealing collar (362) and the fixing ring (360).

8. The paint residue separation device for automobile painting according to claim 1, characterized in that: A slag collecting chamber (121) is provided in the slag discharge channel (120); one side of the slag collecting chamber (121) is connected to an inclined slag discharge chamber (122); one end of the slag discharge chamber (122) away from the slag collecting chamber (121) is connected to a slag discharge pipe (123); and a slag pushing plate (425) adapted to the slag collecting chamber (121) is provided on the drive shaft (420).

9. A paint residue separation device for automobile painting according to claim 8, characterized in that: The spiral separation plate (150) is movably sleeved on the outside of the inner cylinder (200), and the upper end of the spiral separation plate (150) is fixedly connected to the outer wall of the inner cylinder (200); the upper end of the drive shaft (420) is connected to a plurality of levers (440) of different lengths, and the levers (440) are in contact with the lower end of the spiral separation plate (150).

10. A paint residue separation device for automobile painting according to claim 9, characterized in that: A plurality of fine filter holes (220) are circumferentially formed on the side wall of the lower end of the inner cylinder (200), and a plurality of slag discharge holes (230) are circumferentially formed on the bottom of the inner cylinder (200); a rotating shaft (450) penetrating into the inner cylinder (200) is coaxially fixed to the upper end of the driving shaft (420), and a scraper (460) adapted to the fine filter holes (220) is mounted on the rotating shaft (450).

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