Coating wastewater filtering device

Abstract

The utility model provides a coating wastewater filtering device and belongs to the technical field of coating wastewater treatment. Comprising a tank body, a cover body is installed at the upper end of the tank body through bolts, a supporting base is welded to the lower end of the tank body, a water inlet pipe is arranged above the right side of the outer end of the tank body, an oil discharging pipe is arranged above the rear side of the outer end of the tank body, a discharging pipe is arranged below the water inlet pipe, and a collecting assembly is connected to the rear end of the oil discharging pipe through a flange. Through the arrangement of the tank body, the cover body and the collecting assembly, the whole working process can be carried out in a sealing structure during wastewater treatment, chemical pungent smell cannot be emitted, the body health of operators is ensured, and the working efficiency is improved. And paint oil, particles and water flow in the wastewater are separated through the oil filtering baffle and the particle baffle inside, the paint oil, the particles and the water flow are directly and completely separated from one another, the situation that the filtered wastewater is directly discharged does not exist, and the wastewater treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating wastewater treatment, in particular to a coating wastewater filtering device. Background Art

[0002] Coating process is widely used in metal surface treatment, and coating wastewater mainly comes from degreasing, phosphating, passivation wastewater generated by coating pre-treatment, and wastewater containing electrophoretic paint generated by cathode electrophoresis. These wastewaters contain many chemical components, which will cause serious environmental pollution if discharged directly. Therefore, the wastewater needs to be treated.

[0003] A coating production line wastewater filtering device is disclosed in the Chinese utility model patent application publication specification CN219297175U. Although the wastewater is filtered by a floating object filtering mechanism and a wastewater filtering mechanism, the floating object filtering mechanism filters the floating objects on the water surface, and the wastewater filtering mechanism filters the wastewater generated by the coating production line, and filters out the particulate matter and paint mist in the wastewater, etc., which has a certain purification effect on the wastewater and reduces pollution, however, in actual use, the entire structure is exposed, and when treating the wastewater, a lot of irritating chemical odors will be emitted. Working in such an environment for a long time will cause physical damage to the operator. Secondly, while the device is treating the wastewater, the wastewater will continue to flow in. When the filtering effect of the filter unit deteriorates, there is a lack of a cleaning structure, and the filter unit needs to be rotated and replaced. The filter unit with deteriorated effect needs to be replaced, which is time-consuming and labor-intensive. There is also a problem that the filter units are not a whole with each other, and there are gaps, resulting in a lot of untreated wastewater flowing out through the gaps between them, resulting in poor filtering effect. Therefore, the present application provides a coating wastewater filtering device to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a coating wastewater filtration device to solve the problem proposed in the above-mentioned background technology that the exposed structure during filtration will cause the emission of chemical odors, and working in such an environment for a long time will affect physical health. Secondly, the lack of a cleaning structure leads to the need for frequent replacement of the filter unit, which is not only time-consuming and labor-intensive, but also there are joint gaps between the units, resulting in a poor wastewater filtration effect.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A coating wastewater filtering device comprises a tank body, the upper end of the tank body is bolted to a cover body, the lower end of the tank body is welded to a supporting base, a water inlet pipe is opened on the upper right side of the outer end of the tank body, an oil drain pipe is opened on the upper rear side of the outer end of the tank body, a discharge pipe is opened below the water inlet pipe, a collecting assembly is connected to the rear end flange of the oil drain pipe, a drain valve A is installed in a sleeve connection in the middle of the lower end of the tank body, a rotating shaft is installed in a sleeve connection in the middle of the lower end of the cover body, a support rod is welded to the outer end of the rotating shaft, a cleaning brush is welded to the outer end of the support rod, an oil scraper assembly is installed in a sleeve connection above the outer end of the rotating shaft, an oil filter baffle is installed in a sleeve connection below the oil scraper assembly, a scraper knife is installed in a sleeve connection below the outer end of the rotating shaft, a particle baffle is installed in a sleeve connection below the scraper knife, and a limiting ring is installed in a sleeve connection at the lower end of the rotating shaft.

[0007] Optionally, the collecting assembly includes a collecting cylinder, a sealing cap, an oil filter bag and a drain valve B. The sealing cap is threadedly installed on the upper end of the collecting cylinder, the oil filter bag is sleeved at the lower part of the collecting cylinder, and the drain valve B is sleeved at the middle part of the lower end of the collecting cylinder.

[0008] Optionally, the oil scraper assembly includes a mounting plate, a connecting rod, an oil scraper knife and a socket member, the lower end of the mounting plate is threadedly mounted with a connecting rod, the lower end of the connecting rod is welded with an oil scraper knife, and the middle part of the mounting plate is socket-mounted with a socket member.

[0009] Optionally, a docking block is provided at the upper end of the tank body, and the two are an integrated structure. The tank body and the cover body are reinforced by bolt threads, and a sealing ring is provided at the contact end. The middle bolt on the upper end of the cover body is installed with a motor and a transmission brush, and a lifting ring is welded and installed on the outer side of the upper end of the cover body.

[0010] Optionally, a sleeve groove is opened on the inner side of the upper end of the support base, the inner diameter of the sleeve groove is adapted to the lower end diameter of the tank body, and the two are welded together to form an integral structure. A splicing groove is opened on the top of the rotating shaft, and the splicing groove is spliced ​​with the lower end structure of the transmission brush at the upper end of the cover body to form an integrated structure.

[0011] Optionally, the support rods are longitudinally distributed in three groups, and each group has three support rods symmetrically distributed, and the cleaning brushes are symmetrically distributed in three groups, and the cleaning brushes are longitudinally distributed.

[0012] Optionally, an oil filter cloth is embedded in the middle of the oil filter baffle, and the inner pore size of the oil filter cloth can pass paint oil.

[0013] Optionally, the overall shape of the scraper is a U-shaped structure, the inner side of the particle baffle is distributed with four blocks by four cross bars, and an embedding groove is opened on the inner side of the upper end of the limiting ring, and the inner diameter of the embedding groove is adapted to the outer diameter of the particle baffle.

[0014] Optionally, four supporting legs are symmetrically distributed at the lower end of the collecting cylinder, and the oil filter bag and the inner side of the collecting cylinder are in a clamping structure.

[0015] Optionally, there are six connecting rods symmetrically distributed, with two connecting rods symmetrically distributed in each group, and there are three oil scrapers symmetrically distributed, forming a triangular structure with each other.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, by providing a tank body, a cover body and a collection component, the entire work process can be carried out in a sealed structure during wastewater treatment, and no chemical irritating odor will be emitted, thereby ensuring the health of the operators. In addition, the paint oil, particles and water flow in the wastewater are separated internally through the oil filter baffle and the particle baffle, and they are directly and clearly separated from each other. There will be no situation where the filtered wastewater is directly discharged, thereby improving the efficiency of wastewater treatment.

[0018] The cleaning brush will rotate synchronously with the rotation of the rotating shaft inside the tank, and clean the inner wall of the tank in real time, so that the residue in the wastewater will not adhere to the inner wall. Secondly, the oil filter baffle and particle baffle are cleaned by the oil scraper and scraper to improve the cleaning efficiency and reduce the occurrence of blockage.

[0019] By setting a collection cylinder connected to the tank body, the scraped oil impurities are collected. When the water in the oil impurities water enters the collection cylinder, it will directly enter the oil filter bag for collection, and the excess water will directly flow downward and be discharged through the drain valve B. After the oil stains are collected, the cover will be opened, the internal oil filter bag will be taken out, and the paint oil will be recovered to improve the recovery efficiency of the paint oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the coating wastewater filtration device;

[0022] Figure 2 This is a schematic diagram of the internal planar structure of the tank of the coating wastewater filtration device;

[0023] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the tank of the coating wastewater filtration device;

[0024] Figure 4 This is a schematic diagram of the bottom plan structure of the oil scraping assembly of the painting wastewater filtration device;

[0025] Figure 5 This is a schematic diagram of the internal planar structure of the collection component of the painting wastewater filtration device.

[0026] [reference numerals]

[0027] 1. Tank body; 2. Cover body; 3. Support base; 4. Water inlet pipe; 5. Oil drain pipe; 6. Discharge pipe; 7. Collecting assembly; 8. Drain valve A; 9. Rotating shaft; 10. Support rod; 11. Cleaning brush; 12. Oil scraping assembly; 13. Oil filter baffle; 14. Scraper; 15. Particle baffle; 16. Limiting ring; 701. Collecting cylinder; 702. Sealing cover; 703. Oil filter bag; 704. Drain valve B; 1201. Mounting plate; 1202. Connecting rod; 1203. Oil scraper; 1204. Connecting piece.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0029] The following is a detailed description of a coating wastewater filtration device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0030] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0031] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0032] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0033] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0034] like Figure 1-Figure 5As shown, the embodiment of the utility model provides a coating wastewater filtering device, including a tank body 1, a docking block is provided at the upper end of the tank body 1, the two are of an integrated structure, and are reinforced with the upper cover body 2 by bolt threads, and a sealing ring is provided at the contact end. The upper end bolt of the tank body 1 is installed with the cover body 2, and the middle bolt at the upper end of the cover body 2 is installed with a motor and a transmission brush, which can transmit power to the transmission brush through the motor, and then drive the rotating shaft 9 below to rotate. Secondly, a lifting ring is welded and installed on the outer side of the upper end of the cover body 2. During later maintenance, the cover body 2 can be lifted away, so that the tank body 1 can be opened to maintain the internal structure. The tank body 1 A support base 3 is welded and installed at the lower end, and a sleeve groove is opened on the inner side of the upper end of the support base 3. The inner diameter of the sleeve groove is adapted to the lower end diameter of the tank body 1, and the two are welded and formed in one piece, so as to support at the bottom to ensure the stability of the installation structure. A water inlet pipe 4 is opened on the upper right side of the outer end of the tank body 1, and the painting wastewater can be injected. An oil drain pipe 5 is opened on the upper rear side of the outer end of the tank body 1, and the collected paint oil can be discharged. A discharge pipe 6 is opened below the water inlet pipe 4, and the precipitated and collected particles can be discharged. The rear end flange of the oil drain pipe 5 is connected to a collecting component 7. The middle sleeve of the lower end of the tank body 1 A drain valve A8 is installed to discharge the filtered water. A rotating shaft 9 is sleeved and installed in the middle of the lower end of the cover body 2. A splicing groove is provided on the top of the rotating shaft 9. The splicing groove is spliced ​​with the lower end structure of the transmission brush at the upper end of the cover body 2 to form an integrated structure. A support rod 10 is welded to the outer end of the rotating shaft 9. The support rods 10 are longitudinally distributed in three groups, and each group has three symmetrically distributed ones. A cleaning brush 11 is welded and installed on the outer end of the support rod 10. There are three symmetrically distributed cleaning brushes 11, and the cleaning brushes 11 are longitudinally distributed. An oil scraper assembly 12 is sleeved and installed on the upper part of the outer end of the rotating shaft 9, and an oil filter baffle 13 is sleeved and installed on the lower part of the oil scraper assembly 12. The oil filter An oil filter cloth is embedded in the middle of the baffle 13, and the internal pore size of the oil filter cloth can pass paint oil. A scraper 14 is installed on the lower kit of the outer end of the rotating shaft 9. The overall shape of the scraper 14 is a U-shaped structure, and the inner side of the upper end of the U-shaped structure is sealed with the mounting structure to ensure that no particulate matter in the wastewater will enter, making it difficult to clean and discharge. A particle baffle 15 is installed under the scraper 14, and the inner side of the particle baffle 15 is distributed with four blocks by four cross bars. A limit ring 16 is installed on the lower end of the rotating shaft 9, and an embedding groove is provided on the inner side of the upper end of the limit ring 16. The inner diameter of the embedding groove is matched with the outer diameter of the particle baffle 15.

[0035] Wastewater can be injected into the tank body 1 through the water inlet pipe 4, and a coagulant will be added to the wastewater before injection. Then, the motor and the transmission brush at the upper end of the cover body 2 are turned on to drive the rotating shaft 9 at the lower end to start rotating, so as to stir the wastewater and allow it to quickly react with the coagulant to produce particulate matter. At the same time, the paint oil will float on the surface of the water flow. When the paint oil floats upward continuously and passes through the oil filter cloth in the oil filter baffle 13, it will be scraped out by the oil scraper assembly 12 and enter the collection assembly 7 through the oil discharge pipe 5 for collection.

[0036] The particle baffle 15 is provided to block the condensed particles, and the water flows through the particle baffle 15 to flow downwards and is discharged through the drain valve A8 to achieve solid-liquid separation. The particles remaining above the particle baffle 15 are stirred by the scraper 14 and pushed to the discharge pipe 6 for discharge.

[0037] The cleaning brush 11 is arranged to rotate synchronously with the rotation of the rotating shaft 9 inside the tank body 1, and the inner wall of the tank body 1 is cleaned in real time, so that the residue in the wastewater will not adhere to the inner wall. Secondly, the oil filter baffle 13 and the particle baffle 15 are cleaned by the oil scraper 1203 and the scraper 14, so as to improve the cleaning efficiency and reduce the occurrence of blockage.

[0038] like Figure 1 and Figure 5 As shown, the collecting assembly 7 includes a collecting cylinder 701, a sealing cover 702, an oil filter bag 703 and a drain valve B704. The lower end of the collecting cylinder 701 is symmetrically provided with four supporting legs to support it and ensure the stability of the installation structure. The upper end of the collecting cylinder 701 is threadedly installed with a sealing cover 702, and the lower part of the interior of the collecting cylinder 701 is sleeved with an oil filter bag 703. The oil filter bag 703 and the inner side of the collecting cylinder 701 are in a clamping structure, and only the upper end structure is reinforced with the interior of the collecting cylinder 701, and there is a gap directly between the lower end and the collecting cylinder 701, so that the water flow can be filtered and only paint oil remains. The middle part of the lower end of the collecting cylinder 701 is sleeved with a drain valve B704, which can separate the paint oil and water and then discharge the water flow.

[0039] Through the design of the collecting tube 701, it can be connected with the tank body 1 to collect the scraped oil impurities. When the water in the oil impurities water enters the collecting tube 701, it will directly enter the oil filter bag 703 for collection, and the excess water will flow directly to the bottom and be discharged through the drain valve B704. After the oil stains are collected, the cover 702 will be opened, and the internal oil filter bag 703 will be taken out to recover the paint oil.

[0040] like Figure 2 , Figure 3 and Figure 4As shown, the oil scraper assembly 12 includes a mounting plate 1201, a connecting rod 1202, an oil scraper knife 1203 and a socket 1204. The lower end of the mounting plate 1201 is threadedly mounted with a connecting rod 1202. There are six symmetrically distributed connecting rods 1202, with two symmetrically distributed in each group. The lower end of the connecting rod 1202 is welded with an oil scraper knife 1203. There are three symmetrically distributed oil scrapers 1203 that form a triangular structure with each other. The socket 1204 is socketed in the middle of the mounting plate 1201.

[0041] Through the design of the socket 1204, it can rotate synchronously with the rotating shaft 9, allowing the scraper knife 1203 below to scrape off the paint oil remaining on the oil filter baffle 13. Since the scraper knife 1203 is installed in a triangular shape, the scraping and cleaning efficiency is better, thereby maintaining the working efficiency of the oil filter baffle 13.

[0042] The working principle provided by the utility model is that the coating wastewater filtering device can inject wastewater into the tank body through the arranged water inlet pipe, and a coagulant is added to the wastewater before the injection, and then the motor and the transmission brush at the upper end of the cover body are turned on to drive the rotating shaft at the lower end to start rotating, so as to stir the wastewater so that it can quickly react with the coagulant to produce particulate matter, and at the same time, the density of the paint oil is lower than that of water, and it will float on the surface of the water flow, and wait until the paint oil floats up continuously and passes through the oil filter cloth in the oil filter baffle, and then the paint oil remaining on the oil filter baffle is scraped off by the oil scraper, and enters the collection cylinder through the oil discharge pipe, and falls into the oil filter cloth bag. The excess water flows directly downwards and is discharged through the drain valve B. After the oil stains are collected, the cover is opened, the oil filter bag inside is taken out, and the paint oil is recycled. Secondly, the particles condensed in the water can be blocked by the particle baffle, and the water flows downwards through the particle baffle and is discharged through the drain valve A to achieve solid-liquid separation. The particles remaining above the particle baffle are stirred by the scraper and pushed to the discharge pipe for discharge. The entire work process is carried out in a sealed structure, and no chemical irritating odor is emitted, ensuring the health of the operators.

[0043] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A coating wastewater filtration device, characterized in that: The oil pump comprises a tank body, wherein the upper end of the tank body is bolted with a cover body, the lower end of the tank body is welded with a supporting base, a water inlet pipe is opened on the upper right side of the outer end of the tank body, an oil drain pipe is opened on the upper rear side of the outer end of the tank body, a discharge pipe is opened below the water inlet pipe, a rear end flange of the oil drain pipe is connected with a collecting assembly, a drain valve A is sleeved and installed in the middle of the lower end of the tank body, a rotating shaft is sleeved and installed in the middle of the lower end of the cover body, a support rod is welded to the outer end of the rotating shaft, a cleaning brush is welded and installed on the outer end of the support rod, an oil scraper assembly is sleeved and installed above the outer end of the rotating shaft, an oil filter baffle is sleeved and installed below the oil scraper assembly, a scraper knife is installed on the lower kit of the outer end of the rotating shaft, a particle baffle is sleeved and installed below the scraper knife, and a limiting ring is sleeved and installed on the lower end of the rotating shaft.

2. The painting wastewater filtration device according to claim 1, characterized in that: The collecting assembly comprises a collecting cylinder, a sealing cover, an oil filter bag and a drain valve B. The sealing cover is threadedly mounted on the upper end of the collecting cylinder, the oil filter bag is sleeved and mounted at the lower part of the collecting cylinder, and the drain valve B is sleeved and mounted at the middle part of the lower end of the collecting cylinder.

3. The painting wastewater filtration device according to claim 1, characterized in that: The oil scraper assembly includes a mounting plate, a connecting rod, an oil scraper knife and a socket. The lower end of the mounting plate is threadedly mounted with a connecting rod, the lower end of the connecting rod is welded with an oil scraper knife, and the middle part of the mounting plate is socketed with a socket.

4. The painting wastewater filtration device according to claim 1, characterized in that: A docking block is provided at the upper end of the tank body, and the two are of an integrated structure. The tank body and the cover body are reinforced by bolt threads, and a sealing ring is provided at the contact end. The middle bolt on the upper end of the cover body is installed with a motor and a transmission brush, and a lifting ring is welded and installed on the outer side of the upper end of the cover body.

5. The painting wastewater filtration device according to claim 1, characterized in that: A sleeve groove is provided on the inner side of the upper end of the support base, and the inner diameter of the sleeve groove is matched with the lower end diameter of the tank body, and the two are welded together to form an integral structure. A splicing groove is provided on the top of the rotating shaft, and the splicing groove is spliced ​​with the lower end structure of the transmission brush at the upper end of the cover body to form an integral structure.

6. The painting wastewater filtration device according to claim 1, characterized in that: The support rods are longitudinally distributed in three groups, and each group has three support rods symmetrically distributed. The cleaning brushes are symmetrically distributed in three groups, and the cleaning brushes are longitudinally distributed.

7. The painting wastewater filtration device according to claim 1, characterized in that: An oil filter cloth is embedded and installed in the middle of the oil filter baffle, and the inner pore size of the oil filter cloth can pass the paint oil.

8. The painting wastewater filtration device according to claim 1, characterized in that: The overall shape of the scraper is a U-shaped structure. The inner side of the particle baffle is distributed with four blocks by four cross bars. An embedding groove is opened on the inner side of the upper end of the limiting ring. The inner diameter of the embedding groove is matched with the outer diameter of the particle baffle.

9. The painting wastewater filtration device according to claim 2, characterized in that: Four supporting legs are symmetrically distributed at the lower end of the collecting cylinder, and the oil filter bag and the inner side of the collecting cylinder are in a clamping structure.

10. The painting wastewater filtration device according to claim 3, characterized in that: There are six connecting rods symmetrically distributed, with two connecting rods symmetrically distributed in each group, and there are three oil scrapers symmetrically distributed, forming a triangular structure with each other.

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