A wastewater treatment system for coating production

Abstract

The utility model relates to the field of wastewater treatment, and in particular to a wastewater treatment system for coating production, which includes an integrated treatment device, a sedimentation tank, a water inlet pipe, a mud discharge pipe, a scum filter mechanism and a water guide. When in use, wastewater is discharged into the sedimentation tank through the water inlet pipe, and suspended matter settles to the bottom of the tank under the action of gravity to form sludge. The settled sludge is discharged from the mud discharge pipe regularly by hydrostatic pressure, and the clarified water after sedimentation overflows from the notch to the integrated treatment device for preliminary treatment. During the process, the clarified water overflowing from the notch can enter the collection tank through the opening, and is filtered through the rear plate, and the scum in the clarified water is trapped in the collection box. The utility model ensures the effluent quality of the sedimentation tank by reasonably setting the scum filter mechanism, facilitates the subsequent treatment of the wastewater, and improves the treatment effect of the wastewater.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to a wastewater treatment system used in coating production. Background Art

[0002] Painting is an important part of modern product manufacturing process. The quality of anti-rust and anti-corrosion coating is one of the important aspects of overall product quality. The appearance quality of products not only reflects the protection and decorative performance of products, but also is an important factor in the value of products. Painting is a systematic project, which includes three basic processes: surface treatment of the coated object before painting, coating process and drying, as well as the design of a reasonable coating system, the selection of suitable coatings, the determination of good working environment conditions, and the important links of quality, process management and technical economy. During the painting process, wastewater and waste residue containing harmful substances will be generated, which will cause harm to the environment. Therefore, wastewater and waste residue need to be properly treated, but the current wastewater treatment equipment has problems such as poor treatment effect. Summary of the invention

[0003] In view of the deficiencies raised in the above background technology, the utility model provides a wastewater treatment system for coating production.

[0004] The utility model adopts the following technical solutions:

[0005] A wastewater treatment system for coating production, characterized in that the treatment system comprises:

[0006] A sedimentation tank is provided at the front end of the integrated treatment equipment, wherein one end of the sedimentation tank close to the integrated treatment equipment is provided with a notch, and the notch is higher than the integrated treatment equipment;

[0007] a water inlet pipe disposed in the sedimentation tank;

[0008] A mud discharge pipe is arranged at the bottom of the sedimentation tank, the mud discharge pipe is arranged close to the wall of the sedimentation tank, the mud inlet end of the mud discharge pipe is located at the bottom of the sedimentation tank, and the mud outlet end of the mud discharge pipe passes through the wall of the sedimentation tank;

[0009] A scum filtering mechanism is arranged on the sedimentation tank, the scum filtering mechanism comprises a collection box and a truss arranged on the upper surface of the collection box, the truss is detachably erected on the sedimentation tank, and the collection box is intercepted at the front end of the notch, the interior of the collection box is hollow to form a collection groove, the surface of the collection box on one side facing away from the notch is provided with an opening, the opening is connected to the collection groove, and the opening corresponds to the notch, and the rear plate of the collection box close to the notch is hollowed out to form a filter screen;

[0010] A water guide member provided at the notch, the water guide member comprising a mounting plate and a guide plate provided at the rear end of the mounting plate, the mounting plate being fixed to the sedimentation tank at the notch, the guide plate being inclined, the inclination direction of the guide plate being from the mounting plate to the integrated treatment device and inclining downward;

[0011] Among them, wastewater is discharged into the sedimentation tank from top to bottom through the water inlet pipe, the clarified water after sedimentation overflows from the notch into the integrated treatment equipment, the settled sludge is discharged from the sludge discharge pipe, and the collecting box is used to intercept the scum in the clarified water overflowing from the notch.

[0012] As a further improvement, an umbrella-shaped baffle is provided below the outlet of the water inlet pipe, and the umbrella-shaped baffle is connected to the water inlet pipe via a mounting rod.

[0013] As a further improvement, downwardly recessed slots are provided on both sides of the upper surface of the sedimentation tank, and the two ends of the truss are detachably embedded in the two slots.

[0014] As a further improvement, a discharge port is provided at one end of the collection box, and the discharge port is used to clear out the scum trapped in the collection box. A side panel is hinged at the discharge port, and the side panel is used to control the opening and closing of the discharge port.

[0015] As a further improvement, raised water baffles are provided on the sedimentation tanks at both ends of the notch, and the two water baffles are abutted against the two ends of the guide plate, and the water baffles are used to intercept water flow.

[0016] As a further improvement, guide blocks are provided at both ends of the guide plate, the two guide blocks form an "eight" structure, and the end with a smaller distance between the two guide plates is arranged close to the integrated processing equipment.

[0017] As a further improvement, a filter screen is provided on the guide plate, the filter screen is vertically arranged, and the filter screen is detachably connected to the guide plate.

[0018] As a further improvement, the guide blocks are each provided with a downwardly recessed fixing groove, the two ends of the filter screen are detachably embedded in the two fixing grooves, and the bottom end of the filter screen is closely attached to the upper surface of the guide plate.

[0019] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages: when in use, wastewater is discharged into the sedimentation tank through the water inlet pipe, and the suspended matter settles to the bottom of the tank under the action of gravity to form sludge. The settled sludge is discharged from the sludge discharge pipe regularly by hydrostatic pressure, and the clarified water after sedimentation overflows from the notch to the integrated treatment equipment for preliminary treatment. During the process, the clarified water overflowing from the notch can enter the collection tank through the opening, and is filtered through the rear plate, and the scum in the clarified water is retained in the collection box. The utility model ensures the effluent water quality of the sedimentation tank by reasonably setting the scum filtering mechanism, facilitates the subsequent treatment of the wastewater, and improves the treatment effect of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the sedimentation tank, water inlet pipe and sludge discharge pipe.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the scum filtering mechanism.

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the slag filtering mechanism.

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure after the upper side plate of the scum filtering mechanism is opened.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the sedimentation tank and scum filtering mechanism.

[0026] Figure 7 Schematic diagram of the exploded structure of the water guide.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the water guide.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sedimentation tank and water guide parts.

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the water inlet pipe.

[0030] Fig.11 It is a schematic diagram of the cross-sectional structure of the utility model. DETAILED DESCRIPTION

[0031] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0032] As attached Figure 1As shown, a wastewater treatment system for coating production includes an integrated treatment device 1, a sedimentation tank 2, a water inlet pipe 3, a mud discharge pipe 4, a scum filtering mechanism 5 and a water guide 6.

[0033] As attached Figure 1 and Figure 2 As shown, a water inlet pipe 3 is provided in the sedimentation tank 2, and wastewater is discharged into the sedimentation tank 2 from top to bottom through the water inlet pipe 3. A sludge discharge pipe 4 is provided at the bottom of the sedimentation tank 2, and the sludge discharge pipe 4 is arranged close to the wall of the sedimentation tank 2. The sludge inlet end of the sludge discharge pipe 4 is located at the bottom of the sedimentation tank 2, and the sludge outlet end of the sludge discharge pipe 4 passes through the wall of the sedimentation tank 2. The sedimentation tank 2 is arranged at the front end of the integrated treatment equipment 1, and a notch 21 is provided at one end of the sedimentation tank 2 close to the integrated treatment equipment 1, and the notch 21 is higher than the integrated treatment equipment 1. When in use, wastewater is discharged into the sedimentation tank 2 through the water inlet pipe 3, and suspended matter settles to the bottom of the tank under the action of gravity to form sludge. The settled sludge is discharged from the sludge discharge pipe 4 regularly by hydrostatic pressure, and the clarified water after precipitation overflows from the notch 21 into the integrated treatment equipment 1 for preliminary treatment. Further, as shown in the attached Fig.10 and Fig.11 As shown, an umbrella-shaped baffle 31 is provided below the outlet of the water inlet pipe 3 , and the umbrella-shaped baffle 31 is connected to the water inlet pipe 3 through a mounting rod 32 . The umbrella-shaped baffle 31 can make the wastewater evenly distributed in the sedimentation tank 2 , and then slowly rise along the entire cross-section of the sedimentation tank 2 .

[0034] As attached Figures 2 to 6 As shown, a scum filtering mechanism 5 is provided on the sedimentation tank 2. The scum filtering mechanism 5 includes a collecting box 51 and a truss 54 provided on the upper surface of the collecting box 51. The truss 54 is erected on the sedimentation tank 2, and the collecting box 51 is intercepted at the front end of the notch 21. The interior of the collecting box 51 is hollow to form a collecting tank 52. The rear plate 55 of the collecting box 51 close to the notch 21 is hollowed out to form a filter screen, and an opening 53 is provided on the surface of the collecting box 51 on the side facing away from the notch 21. The opening 53 is connected to the collecting tank 52, and the opening 53 corresponds to the notch 21, so that the clarified water overflowing from the notch 21 can enter the collecting tank 52 through the opening 53, and flow into the integrated treatment equipment 1 after being filtered by the rear plate 55. During the process, the scum in the clarified water overflowing from the notch 21 is retained in the collecting box 51, thereby ensuring the effluent quality of the sedimentation tank 2, facilitating the subsequent treatment of wastewater, and improving the treatment effect of wastewater. It is worth mentioning that, as shown in the attached Figure 2 and 3As shown, the scum filtering mechanism 5 is detachably mounted on the sedimentation tank 2. Specifically, the two sides of the upper surface of the sedimentation tank 2 are provided with downwardly concave slots 23, and the two ends of the truss 54 are detachably embedded in the two slots 23. The inner wall of the slot 23 plays a limiting role on the surface of the truss 54, so that the truss 54 can be stably mounted on the sedimentation tank 2, thereby ensuring the use of the collection box 51. When it is necessary to clean the scum in the collection box 51, the collection box 51 can be lifted upward to make the truss 54 detach from the slot 23, and the collection box 51 can be removed for cleaning. At the same time, the bottom surface of the two ends of the truss 54 can also be provided with upwardly concave mounting slots 57. When the two ends of the truss 54 are embedded in the slots 23, the sedimentation tank 2 at the bottom of the slot 23 is also embedded in the mounting slots 57. The mounting slots 57 and the slots 23 are used to double position the truss 54, which can improve the installation stability of the scum filtering mechanism 5.

[0035] In addition, as attached Figure 3 and Figure 5 As shown, a discharge port 59 is provided at one end of the collection box 51, and the discharge port 59 is used to clear out the scum trapped in the collection box 51. A side plate 58 is hinged at the discharge port 59 through a hinge, and the side plate 58 is used to control the opening and closing of the discharge port 59. When the collection box 51 is removed from the sedimentation tank 2, the side plate 58 can be rotated to open the discharge port 59, and then the scum in the collection box 51 is flushed out from the discharge port 59 to complete the cleaning of the scum, ensure the filtering effect of the collection box 51, and thus improve the treatment effect of the wastewater. At the same time, a raised baffle 56 is provided on the inner wall of the side of the collection tank 52 close to the opening 53, and the baffle 56 is used to intercept the scum in the collection tank 52, reduce the risk of the scum in the collection tank 52 floating back to the sedimentation tank 2, and improve the cleaning effect of the scum.

[0036] As attached Figures 7 to 9 As shown, the water guide 6 is arranged at the notch 21, and the water guide 6 includes a mounting plate 61 and a guide plate 62 arranged at the rear end of the mounting plate 61. The mounting plate 61 is fixed to the sedimentation tank 2 at the notch 21, and the guide plate 62 is arranged obliquely. The inclination direction of the guide plate 62 is from the mounting plate 61 to the integrated treatment equipment 1, and it is inclined downward. When in use, the guide plate 62 can play a good guiding role in the flow of clarified water, so that the clarified water can fall smoothly into the integrated treatment equipment 1, and avoid the clarified water flowing along the outer wall of the sedimentation tank 2 to cause leakage losses and damage to the environment. In addition, the sedimentation tank 2 at both ends of the notch 21 is provided with a raised water baffle 22, and the two water baffles 22 are abutted against the two ends of the guide plate 62. The water baffle 22 is used to intercept the water flow to prevent the clarified water from leaking. At the same time, guide blocks 63 can be arranged at both ends of the guide plate 62, and the two guide blocks 63 form an "eight" structure, and the end with a smaller distance between the two guide plates 62 is arranged close to the integrated treatment equipment 1. When in use, the clarified water is collected by the guide plate 62 to ensure that the clarified water can accurately fall into the integrated treatment equipment 1, which can further prevent the clarified water from leaking and causing pollution.

[0037] In addition, if attached Figure 7 and Figure 8 As shown, a filter screen 64 is provided on the guide plate 62, and the filter screen 64 is vertically arranged, and the filter screen 64 is detachably connected to the guide plate 62. Specifically, a downwardly concave fixed groove 63 is provided on the guide block 63, and both ends of the filter screen 64 are detachably embedded in the two fixed grooves 63, and the bottom end of the filter screen 64 is close to the surface of the guide plate 62, wherein the filtering accuracy of the filter screen 64 is greater than the filtering accuracy of the rear plate 55, and the scum can be intercepted for a second time by the filter screen 64, further ensuring the effluent water quality of the sedimentation tank 2. When cleaning, the intercepted scum can be directly scraped together and cleaned along the guide plate 62. When the filter screen 64 needs to be replaced, it only needs to be lifted upward to separate the filter screen 64 from the fixed groove 63 and then replaced again.

[0038] In summary, when the utility model is in use, wastewater is discharged into the sedimentation tank 2 through the water inlet pipe 3, and the suspended matter settles to the bottom of the tank under the action of gravity to form sludge. The settled sludge is discharged from the sludge discharge pipe 4 regularly by hydrostatic pressure, and the clarified water after sedimentation overflows from the notch 21 to the integrated treatment equipment 1 for deep treatment. During the process, the clarified water overflowing from the notch 21 can enter the collection tank 52 through the opening 53, and is filtered through the rear plate 55, and the scum in the clarified water is trapped in the collection box 51. The utility model ensures the effluent water quality of the sedimentation tank 2 by reasonably setting the scum filtering mechanism 5, facilitates the subsequent treatment of the wastewater, and improves the treatment effect of the wastewater. At the same time, a guide plate 62 is set to play a good guiding role in the flow of clarified water, so that the clarified water can fall smoothly into the integrated treatment equipment 1, and avoid the clarified water flowing along the outer wall of the sedimentation tank 2 to cause loss or damage to the environment.

[0039] The utility model can be used for the purification of grinding wastewater in coating production, that is, the utility model is connected between the wastewater collection tank and the deep treatment equipment. When in use, the grinding wastewater is first collected in the collection tank, and then pumped into the sedimentation tank 2 of the utility model for preliminary sedimentation, and then overflowed into the integrated treatment equipment 1 of the utility model for preliminary treatment. The integrated treatment equipment 1 includes dosing treatment and secondary sedimentation treatment, and the coarse purified water in the integrated treatment equipment 1 is thoroughly removed by the deep treatment equipment. Solid particles that affect reuse in the water flow into the clean water tank, and then supplied to the grinding workshop by a variable frequency pump and used as a supplement for painting and spray towers, thereby realizing the purification and recycling of grinding wastewater to achieve the purpose of saving water and reducing production costs.

[0040] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A wastewater treatment system for coating production, characterized in that: The processing system includes: A sedimentation tank is provided at the front end of the integrated treatment equipment, wherein one end of the sedimentation tank close to the integrated treatment equipment is provided with a notch, and the notch is higher than the integrated treatment equipment; a water inlet pipe disposed in the sedimentation tank; A mud discharge pipe is arranged at the bottom of the sedimentation tank, the mud discharge pipe is arranged close to the wall of the sedimentation tank, the mud inlet end of the mud discharge pipe is located at the bottom of the sedimentation tank, and the mud outlet end of the mud discharge pipe passes through the wall of the sedimentation tank; A scum filtering mechanism is arranged on the sedimentation tank, the scum filtering mechanism comprises a collection box and a truss arranged on the upper surface of the collection box, the truss is detachably erected on the sedimentation tank, and the collection box is intercepted at the front end of the notch, the interior of the collection box is hollow to form a collection groove, the surface of the collection box on one side facing away from the notch is provided with an opening, the opening is connected to the collection groove, and the opening corresponds to the notch, and the rear plate of the collection box close to the notch is hollowed out to form a filter screen; A water guide member provided at the notch, the water guide member comprising a mounting plate and a guide plate provided at the rear end of the mounting plate, the mounting plate being fixed to the sedimentation tank at the notch, the guide plate being inclined, the inclination direction of the guide plate being from the mounting plate to the integrated treatment device and inclining downward; Among them, wastewater is discharged into the sedimentation tank from top to bottom through the water inlet pipe, the clarified water after sedimentation overflows from the notch into the integrated treatment equipment, the settled sludge is discharged from the sludge discharge pipe, and the collecting box is used to intercept the scum in the clarified water overflowing from the notch.

2. A wastewater treatment system for coating production according to claim 1, characterized in that: An umbrella-shaped baffle is provided below the outlet of the water inlet pipe, and the umbrella-shaped baffle is connected to the water inlet pipe through a mounting rod.

3. A wastewater treatment system for coating production according to claim 1, characterized in that: The two sides of the upper surface of the sedimentation tank are provided with downwardly recessed slots, and the two ends of the truss are detachably embedded in the two slots.

4. A wastewater treatment system for coating production as claimed in claim 1, characterized in that: A discharge port is provided at one end of the collecting box, and the discharge port is used to clear out the scum trapped in the collecting box. A side plate is hinged at the discharge port, and the side plate is used to control the opening and closing of the discharge port.

5. A wastewater treatment system for coating production as claimed in claim 4, characterized in that: The sedimentation tanks at both ends of the notch are provided with raised water baffles, and the two water baffles are abutted against the two ends of the guide plate, and the water baffles are used to intercept water flow.

6. A wastewater treatment system for coating production as claimed in claim 1, characterized in that: Guide blocks are provided at both ends of the guide plate, the two guide blocks form an "eight" structure, and the end with a smaller distance between the two guide plates is arranged close to the integrated processing equipment.

7. A wastewater treatment system for coating production as claimed in claim 6, characterized in that: The guide plate is provided with a filter screen, which is arranged vertically, and the filter screen is detachably connected to the guide plate.

8. A wastewater treatment system for coating production as claimed in claim 7, characterized in that: The guide blocks are each provided with a downwardly recessed fixing groove, and the two ends of the filter screen are detachably embedded in the two fixing grooves, and the bottom end of the filter screen is closely attached to the upper surface of the guide plate.

Images