A wastewater recycling, conveying, and treatment device for coating machine cleaning

By setting up a cleaning and disassembly mechanism, the electric push rod drives the lifting frame scraper to clean the flocs on the inner wall of the treatment cylinder. Combined with water flow cleaning and butterfly valve to discharge the flocs, the problem of increased workload and low efficiency caused by floc adhesion is solved, achieving efficient cleaning and convenient filter replacement.

CN224430335UActive Publication Date: 2026-06-30NANJING KAIOU MACHINERY MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING KAIOU MACHINERY MFG
Filing Date
2025-08-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional wastewater treatment methods for coating machines result in flocs adhering to the inner wall of the treatment drum and the filter screen, increasing the workload and time required for workers and affecting production efficiency.

Method used

The cleaning mechanism is designed to use an electric push rod to drive the lifting frame and scraper to clean the flocs on the inner wall of the treatment cylinder, and then use water flow to wash them and discharge the flocs with a butterfly valve; the disassembly and assembly mechanism makes it easy to replace and clean the filter screen.

Benefits of technology

It achieves efficient cleaning of flocs on the inner wall of the filter cylinder, reduces manual operation time, improves production efficiency, and ensures convenient cleaning and replacement of the filter screen.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224430335U_ABST
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Abstract

This utility model discloses a wastewater recycling, conveying, and treatment device for coating machine cleaning wastewater, relating to the field of wastewater treatment technology. The utility model includes a treatment cylinder with a filter screen inserted inside, and further includes: a cleaning mechanism disposed inside the treatment cylinder for cleaning the inner wall of the treatment cylinder; and a disassembly / assembly mechanism disposed on the right side of the outer surface of the treatment cylinder. Specifically, the cleaning mechanism involves activating an electric push rod to extend, its bottom output end driving two lifting frames downwards. An outer scraper removes flocculation from the inner wall of the treatment cylinder, while a water pipe is inserted into the insertion pipe. Water flows through the annular pipe and the water injection pipe to clean the inner wall of the treatment cylinder. Then, a butterfly valve is opened, and the flocculation is discharged through the drain pipe. The conical bottom of the treatment cylinder facilitates the discharge of the flocculation. When the lower lifting frame reaches its lowest position, the electric push rod retracts, causing the two lifting frames to move upwards. Repeating this operation cleans the flocculation from the inner wall of the treatment cylinder.
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Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and in particular relates to a device for recycling, conveying and treating wastewater from a coating machine. Background Technology

[0002] In the production processes of pharmaceutical, food, and chemical industries, coating machines are key equipment widely used in the coating processes of tablets, capsules, candies, and other products. After each coating machine completes its production task, it needs to be cleaned to ensure the quality of subsequent products. This process generates a large amount of wastewater containing pollutants such as coating materials, organic solvents, and excipients. If this wastewater is discharged directly without effective treatment, it will not only waste water resources but also cause serious environmental pollution. The pollutants such as chemical agents, pigments, and polymers contained in the wastewater may disrupt the ecological balance of aquatic bodies and even endanger human health.

[0003] Traditional wastewater treatment for coating machines mainly involves adding coagulants to the wastewater, causing the coating materials, chemicals, pigments, and polymers in the wastewater to coagulate into flocs. These flocs are then filtered through a filter screen inside a treatment drum before further processing. However, after prolonged use, a large amount of flocs adheres to the inner wall of the treatment drum and the filter screen, affecting the processing operation. This requires workers to use tools to clean the treatment drum and filter screen, which greatly increases the workload of workers and is time-consuming, leading to a decrease in overall production efficiency. Therefore, we propose a wastewater recycling, conveying, and treatment device for coating machines. Utility Model Content

[0004] The purpose of this invention is to provide a wastewater recycling, conveying, and treatment device for coating machine cleaning. By setting up a cleaning mechanism, specifically, an electric push rod is activated to extend, causing two lifting frames to move downwards. An outer scraper removes flocculation from the inner wall of the treatment cylinder. Simultaneously, a water pipe is inserted into the insertion pipe, and water flows through the annular pipe and the water injection pipe to clean the inner wall of the treatment cylinder. Then, a butterfly valve is opened, and the flocculation is discharged through the drain pipe. The conical bottom of the treatment cylinder facilitates the flocculation discharge. When the lower lifting frame reaches its lowest point, the electric push rod is activated to retract, causing the two lifting frames to move upwards. Repeating this operation can thoroughly clean the flocculation from the inner wall of the treatment cylinder. This solves the problem that after prolonged use, a large amount of flocculation adheres to the inner wall and filter screen of existing treatment cylinders, affecting processing operations. Previously, workers needed to use tools to clean the treatment cylinder and filter screen, which significantly increased their workload and was time-consuming, leading to reduced overall production efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a wastewater recycling, conveying, and treatment device for coating machine cleaning, comprising a treatment cylinder, an inlet pipe fixedly connected to the left side of the treatment cylinder, an outlet pipe fixedly connected to the right side of the treatment cylinder, a filter screen inserted inside the treatment cylinder, and further comprising:

[0007] A cleaning mechanism, disposed inside the processing cylinder, is used to clean the inner wall of the processing cylinder; and

[0008] The disassembly and assembly mechanism is located on the right side of the outer surface of the processing cylinder, and is used to disassemble and assemble the filter screen.

[0009] Furthermore, a plurality of water injection pipes are fixedly connected to the top of the treatment cylinder, and an annular pipe is fixedly connected to the top of the plurality of water injection pipes, with an insertion tube fixedly connected to the back of the annular pipe.

[0010] Furthermore, the cleaning mechanism includes an electric push rod, two brackets are fixedly connected to the top of the processing cylinder, two fixing rings are fixedly connected between the two brackets, and the outer surface of the electric push rod is fixedly connected to the inner wall of the two fixing rings.

[0011] Furthermore, two lifting frames are fixedly connected to the bottom output end of the electric push rod. Several scrapers are fixedly connected to the outer ring of each of the two lifting frames. The scrapers located above and the scrapers located below are staggered, and all of the scrapers abut against the inner wall of the processing cylinder.

[0012] Furthermore, a drain pipe is fixedly connected to the bottom of the treatment cylinder, and a butterfly valve is installed inside the drain pipe.

[0013] Furthermore, the disassembly and assembly mechanism includes an unlocking rod. A fixing box is fixedly connected to the right side of the outer surface of the processing cylinder. The unlocking rod passes through the top of the fixing box and extends into its interior. A spring is sleeved on the outer surface of the unlocking rod. One top end of the spring is fixedly connected to the unlocking rod, and one bottom end of the spring is fixedly connected to the top of the fixing box. The bottom of the unlocking rod is spherical.

[0014] Furthermore, the inner wall of the fixing box is fitted with a locking block for sliding limit, the locking block has an unlocking groove inside, the right side of the filter screen has a locking groove, the right side of the locking block is fixedly connected with a second spring, and the other end of the second spring is fixedly connected to the inner wall of the fixing box.

[0015] This utility model has the following beneficial effects:

[0016] This utility model features a cleaning mechanism. Specifically, it involves activating an electric push rod to extend, causing two lifting frames to move downwards. An outer scraper removes flocculation from the inner wall of the treatment cylinder. Simultaneously, a water pipe is inserted into the insertion tube, allowing water to flow through the annular pipe and the water injection pipe to clean the inner wall of the treatment cylinder. Then, a butterfly valve is opened, allowing the flocculation to be discharged through the drain pipe. The conical bottom of the treatment cylinder helps to expel the flocculation. When the lower lifting frame reaches its lowest position, the electric push rod is activated to retract, causing the two lifting frames to move upwards. Repeating this operation can clean the flocculation from the inner wall of the treatment cylinder.

[0017] This utility model features a disassembly and assembly mechanism. Specifically, pressing the unlocking lever compresses spring one, causing the bottom of the unlocking lever to press against the unlocking groove, thus disengaging the locking block from the locking groove. This allows the filter screen to be removed for cleaning. After the filter screen is removed, releasing the unlocking lever causes spring one to push it back to its original position, while spring two pushes the locking block back into the locking groove. After cleaning, the filter screen is inserted back in, and its bottom presses against the inclined surface of the locking block. Once inserted, the locking block, under the elastic force of spring two, enters the locking groove, thus locking the filter screen.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the sewage pipe structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the processing cylinder of this utility model;

[0023] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0024] Figure 5 This is a schematic diagram of the overall structure of the disassembly and assembly mechanism of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Treatment cylinder; 11. Inlet pipe; 12. Outlet pipe; 13. Filter screen; 2. Cleaning mechanism; 21. Water injection pipe; 211. Ring pipe; 212. Insert pipe; 22. Bracket; 221. Fixing ring; 222. Electric push rod; 223. Lifting frame; 224. Scraper; 225. Sewage pipe; 226. Butterfly valve; 3. Disassembly and assembly mechanism; 31. Fixing box; 32. Unlocking rod; 321. Spring one; 33. Locking block; 331. Unlocking groove; 34. Spring two; 35. Locking groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 As shown, this utility model is a wastewater recycling, conveying, and treatment device for coating machine washing, including a treatment cylinder 1, an inlet pipe 11 fixedly connected to the left side of the treatment cylinder 1, an outlet pipe 12 fixedly connected to the right side of the treatment cylinder 1, a filter screen 13 inserted inside the treatment cylinder 1, and further including:

[0029] Cleaning mechanism 2 is located inside the processing cylinder 1 and is used to clean the inner wall of the processing cylinder 1; and

[0030] The disassembly and assembly mechanism 3 is located on the right side of the outer surface of the processing cylinder 1. The disassembly and assembly mechanism 3 is used to disassemble and assemble the filter screen 13.

[0031] Several water injection pipes 21 are fixedly connected to the top of the treatment cylinder 1, and an annular pipe 211 is fixedly connected to the top of the several water injection pipes 21. An insertion pipe 212 is fixedly connected to the back of the annular pipe 211.

[0032] The cleaning mechanism 2 includes an electric push rod 222. Two brackets 22 are fixedly connected to the top of the processing cylinder 1. Two fixing rings 221 are fixedly connected between the two brackets 22. The outer surface of the electric push rod 222 is fixedly connected to the inner wall of the two fixing rings 221.

[0033] Two lifting frames 223 are fixedly connected to the bottom output end of the electric push rod 222. Several scrapers 224 are fixedly connected to the outer ring of each of the two lifting frames 223. The scrapers 224 located above and the scrapers 224 located below are staggered. All the scrapers 224 abut against the inner wall of the processing cylinder 1.

[0034] A drain pipe 225 is fixedly connected to the bottom of the treatment cylinder 1, and a butterfly valve 226 is installed inside the drain pipe 225. When the electric push rod 222 is activated to extend, its bottom output end drives the two lifting frames 223 to move down. The outer ring scraper 224 scrapes off the flocs on the inner wall of the treatment cylinder 1. At the same time, the water pipe is inserted into the insertion pipe 212, and the water flows through the ring pipe 211 and the water injection pipe 21 to clean the inner wall of the treatment cylinder 1. Then the butterfly valve 226 is opened, and the flocs are discharged through the drain pipe 225. The conical bottom of the treatment cylinder 1 helps to discharge the flocs. When the lower lifting frame 223 moves to the bottom, the electric push rod 222 is activated to retract, causing the two lifting frames 223 to move up. Repeating the operation can clean the flocs on the inner wall of the treatment cylinder 1.

[0035] The disassembly and assembly mechanism 3 includes an unlocking rod 32. A fixed box 31 is fixedly connected to the right side of the outer surface of the processing cylinder 1. The unlocking rod 32 passes through the top of the fixed box 31 and extends into its interior. A spring 321 is sleeved on the outer surface of the unlocking rod 32. One top end of the spring 321 is fixedly connected to the unlocking rod 32, and one bottom end of the spring 321 is fixedly connected to the top of the fixed box 31. The bottom of the unlocking rod 32 is spherical.

[0036] The inner wall of the fixing box 31 is fitted with a locking block 33, which has an unlocking groove 331 inside. The right side of the filter screen 13 has a locking groove 35. A second spring 34 is fixedly connected to the right side of the locking block 33, and the other end of the second spring 34 is fixedly connected to the inner wall of the fixing box 31. Pressing the unlocking rod 32 compresses the first spring 321, and the bottom of the unlocking rod 32 presses against the unlocking groove 331, causing the locking block 33 to disengage from the locking groove 35. The filter screen 13 can then be removed for cleaning. After the filter screen 13 is removed, the unlocking rod 32 is released, and the first spring 321 pushes it back to its original position. The second spring 34 pushes the locking block 33 back into the locking groove 35. After cleaning, the filter screen 13 is inserted back in, and its bottom presses against the inclined surface of the locking block 33. After insertion, the locking block 33 enters the locking groove 35 under the elastic force of the second spring 34, thus locking the filter screen 13.

[0037] One specific application of this embodiment is as follows: When in use, wastewater is transported into the treatment cylinder 1 through the inlet pipe 11 (the inlet pipe 11 is connected to a pump body to draw in the wastewater). At this time, PAC coagulant is injected into the annular pipe 211 through the insertion pipe 212. Then, it will enter the treatment cylinder 1 through several water injection pipes 21 at its bottom, causing the fine suspended matter in the wastewater to aggregate into flocs. Subsequently, the wastewater will be discharged through the outlet pipe 12 for further treatment, while the flocs will be blocked by the filter screen 13.

[0038] After prolonged use, a large amount of flocculent material will adhere to the inner wall of the treatment cylinder 1 and the filter screen 13, affecting the treatment operation. At this time, the electric push rod 222 can be activated to extend, and its bottom output end will drive the two lifting frames 223 to move down. Several scrapers 224 on its outer ring will scrape off the flocculent material adhering to the inner wall of the treatment cylinder 1. At the same time, the water pipe is inserted into the insertion pipe 212. After the water flows into the annular pipe 211, it cleans the inner wall of the treatment cylinder 1 through several water injection pipes 21. At this time, the butterfly valve 226 is opened, and the scraped and cleaned flocculent material will be discharged through the drain pipe 225. At the same time, since the bottom of the treatment cylinder 1 is conical, it can help the flocculent material to be discharged better. When the lower lifting frame 223 moves to the bottom, it is activated. The electric push rod 222 retracts, causing the two lifting frames 223 to move upwards. This repetitive motion cleans the flocculation on the inner wall of the treatment cylinder 1. The scrapers 224 on the outer ring of the two lifting frames 223 are staggered vertically. The water flow in the water injection pipe 21 can flow downwards through the gaps between the upper scrapers 224, and then continue to flow downwards through the gaps between the lower scrapers 224. This arrangement allows the water flow to clean the inner wall of the treatment cylinder 1 while also cleaning the scrapers 224 (the top of the scrapers 224 is tilted downwards towards the inner wall of the treatment cylinder 1). This prevents the flocculation from being too hard, resulting in poor scraping effect, and also prevents a large amount of flocculation from adhering to the scrapers 224, which would affect the cleaning efficiency.

[0039] After the inner wall of the treatment cylinder 1 is cleaned, the unlocking lever 32 can be pressed. At this time, the spring 321 is squeezed, and the bottom of the unlocking lever 32 will squeeze the unlocking groove 331, causing the locking block 33 to leave the locking groove 35. Then the filter screen 13 can be taken out for cleaning. After the filter screen 13 is taken out, the unlocking lever 32 can be released. The spring 321 pushes the unlocking lever 32 to reset, and at the same time, the spring 34 will push the locking block 33 into the locking groove 35. After cleaning, the filter screen 13 is reinserted. The bottom of the filter screen 13 will squeeze the inclined surface at the end of the locking block 33 until the filter screen 13 is inserted. The locking block 33 will lose its compression, and the spring 34 will push the locking block 33 into the locking groove 35 through its own elasticity, locking the filter screen 13.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater recycling, conveying, and treatment device for coating machine cleaning, comprising a treatment cylinder (1), wherein an inlet pipe (11) is fixedly connected to the left side of the treatment cylinder (1), an outlet pipe (12) is fixedly connected to the right side of the treatment cylinder (1), and a filter screen (13) is inserted inside the treatment cylinder (1), characterized in that, Also includes: A cleaning mechanism (2) is disposed inside the processing cylinder (1) and is used to clean the inner wall of the processing cylinder (1); and The disassembly and assembly mechanism (3) is located on the right side of the outer surface of the processing cylinder (1) and is used to disassemble and assemble the filter screen (13).

2. The coating machine cleaning wastewater recycling, conveying, and treatment device according to claim 1, characterized in that, The top of the treatment cylinder (1) is fixedly connected to several water injection pipes (21), and the top of the several water injection pipes (21) is fixedly connected to an annular pipe (211), and the back of the annular pipe (211) is fixedly connected to an insertion tube (212).

3. The coating machine cleaning wastewater recycling, conveying, and treatment device according to claim 2, characterized in that, The cleaning mechanism (2) includes an electric push rod (222), and two brackets (22) are fixedly connected to the top of the processing cylinder (1). Two fixing rings (221) are fixedly connected between the two brackets (22), and the outer surface of the electric push rod (222) is fixedly connected to the inner wall of the two fixing rings (221).

4. The coating machine cleaning wastewater recycling, conveying, and treatment device according to claim 3, characterized in that, The bottom output end of the electric push rod (222) is fixedly connected to two lifting frames (223). The outer ring of each of the two lifting frames (223) is fixedly connected to several scrapers (224). The scrapers (224) located above and the scrapers (224) located below are staggered. The scrapers (224) all abut against the inner wall of the processing cylinder (1).

5. The coating machine cleaning wastewater recycling, conveying, and treatment device according to claim 4, characterized in that, The bottom of the treatment cylinder (1) is fixedly connected to a drain pipe (225), and a butterfly valve (226) is installed inside the drain pipe (225).

6. The coating machine cleaning wastewater recycling, conveying, and treatment device according to claim 1, characterized in that, The disassembly and assembly mechanism (3) includes an unlocking rod (32). A fixed box (31) is fixedly connected to the right side of the outer surface of the processing cylinder (1). The unlocking rod (32) passes through the top of the fixed box (31) and extends into its interior. A spring (321) is sleeved on the outer surface of the unlocking rod (32). One top end of the spring (321) is fixedly connected to the unlocking rod (32), and one bottom end of the spring (321) is fixedly connected to the top of the fixed box (31). The bottom of the unlocking rod (32) is spherical.

7. The coating machine cleaning wastewater recycling, conveying, and treatment device according to claim 6, characterized in that, The inner wall of the fixed box (31) is fitted with a locking block (33), the locking block (33) has an unlocking groove (331) inside, the filter (13) has a locking groove (35) on the right side, and a spring (34) is fixedly connected to the right side of the locking block (33), and the other end of the spring (34) is fixedly connected to the inner wall of the fixed box (31).