Sewage pretreatment decontamination device

Abstract

This utility model discloses a wastewater pretreatment and decontamination device, comprising: a decontamination hood, a self-cleaning fine filter assembly, and a coarse filter assembly. The coarse filter assembly is disposed within the inner cavity of the self-cleaning fine filter assembly and extends to its outer side. The self-cleaning fine filter assembly is disposed within the inner cavity of the decontamination hood and extends to its outer side. Both the self-cleaning fine filter assembly and the coarse filter assembly are installed at a 3-5 degree angle to the lower left. A drain hole is provided at the bottom of the decontamination hood. An inlet pipe is disposed on the right side of the decontamination hood and extends to the middle of the inner cavity of the coarse filter assembly. This utility model, by using the lower left angle of both the self-cleaning fine filter assembly and the coarse filter assembly, achieves wastewater filtration when the self-cleaning fine filter assembly and the coarse filter assembly rotate. Simultaneously, the decontamination hood separates the filtered water source from impurities, preventing impurities from mixing with the water source and affecting the filtration effect.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and in particular relates to a wastewater pretreatment and decontamination device. Background Technology

[0002] Wastewater is water that has deteriorated due to the introduction of new substances or changes in external conditions, rendering it unusable. Based on its source, wastewater can be categorized into industrial wastewater, domestic sewage, commercial wastewater, and surface runoff.

[0003] CN222489137U discloses a wastewater pretreatment and decontamination device. This device includes a drive bearing, a combined screen, a support frame, a slag discharge structure, and a flushing structure. The drive bearing is mounted on the support frame and drives the combined screen to rotate. The combined screen includes a first screen and a second screen, arranged sequentially around the drive bearing from near to far. The first and second screens are connected by a frame, and the mesh size of the first screen is larger than that of the second screen. The combined screen is fixed to the drive bearing at an angle relative to the horizontal plane. The slag discharge structure is connected to the support frame and positioned below the end of the second screen closest to the horizontal plane. An inlet is located at the opposite end of the first screen. The flushing structure is positioned above the combined screen. This wastewater pretreatment and decontamination device integrates multiple screens for filtration, slag discharge, and screen flushing. It not only has high treatment efficiency but also a compact structure, requiring minimal space and power output solely from the drive bearing, thus minimizing energy consumption.

[0004] The impurities filtered through the first and second screens in this decontamination device are mainly discharged to the outside by gravity due to their rotation. However, in actual use, it was found that the impurity removal efficiency inside the first and second screens is low, which affects the filtration efficiency. Furthermore, the tilt angle of the combined screens is 40-70 degrees, which is relatively large, causing some wastewater to be discharged from the surface of the sludge discharge port 33, thus affecting the filtration effect. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater pretreatment and decontamination device that has the advantage of improving filtration efficiency, thereby solving the aforementioned technical problems.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a sewage pretreatment and decontamination device, comprising: a decontamination hood, a self-cleaning fine filter assembly, and a coarse filter assembly. The coarse filter assembly is disposed in the inner cavity of the self-cleaning fine filter assembly and extends to the outside of the self-cleaning fine filter assembly. The self-cleaning fine filter assembly is disposed in the inner cavity of the decontamination hood and extends to the outside of the decontamination hood. Both the self-cleaning fine filter assembly and the coarse filter assembly are installed at an angle of 3-5 degrees to the lower left. A drain hole is provided at the bottom of the decontamination hood. An inlet pipe is disposed on the right side of the decontamination hood and extends to the middle of the inner cavity of the coarse filter assembly.

[0007] Furthermore, a fixing bracket is fixedly installed at the bottom of the liquid inlet pipe, and a feed hopper is provided at one end of the liquid inlet pipe extending to the outside of the coarse filter assembly.

[0008] Furthermore, the self-cleaning fine filter assembly includes a fine filter cylinder that rotates within the inner cavity of the cleaning hood. A fixing cylinder is fixedly installed on both the left and right sides of the fine filter cylinder, extending to the outer side of the cleaning hood. A support frame is provided on both the left and right sides of the cleaning hood. The fixing cylinder rotates within the inner cavity of the support frame. A receiving trough and a scraper are fixedly installed at the top between the two support frames. The scraper is located at the top of the receiving trough, and its top is in contact with the surface of the inner cavity of the fine filter cylinder. The receiving trough does not contact the coarse filter assembly.

[0009] Furthermore, a fixing hoop is fixedly installed on the outer surface of the fixing cylinder, and multiple rollers that cooperate with the fixing hoop are installed in the inner cavity of the support frame. A flushing water pipe is fixedly installed at the top of the inner cavity of the cleaning hood, and a nozzle is installed at the bottom of the flushing water pipe, with the nozzle facing the inner cavity of the receiving trough.

[0010] Furthermore, the coarse filter assembly includes a coarse filter cylinder that rotates within the inner cavity of the cleaning hood. Fixed cylinders are fixedly installed on both the left and right sides of the coarse filter cylinder. The fixed cylinders extend to the outside of the self-cleaning fine filter assembly. Support frames are provided on both the left and right sides of the self-cleaning fine filter assembly. The fixed cylinder rotates within the inner cavity of the support frame. A drain trough is fixedly installed on the left side of the left support frame, and the drain trough is located at the bottom of the self-cleaning fine filter assembly.

[0011] Furthermore, a fixing hoop 2 is fixedly installed on the outer surface of the fixing cylinder 2, and a roller 2 that cooperates with the fixing hoop 2 is fixedly installed in the inner cavity of the support frame 2.

[0012] Furthermore, an external gear ring is fixedly installed on the surface of both the right fixed cylinder one and the right fixed cylinder two. A drive motor is fixedly installed on the top of the inner cavity of both the right support frame one and the right support frame two. A gear is fixedly installed on the output shaft of the drive motor, and the gear meshes with the external gear ring.

[0013] The beneficial effects of this utility model are: 1. This utility model uses a self-cleaning fine filter component and a coarse filter component that are both tilted to the lower left. When the self-cleaning fine filter component and the coarse filter component rotate, the wastewater is filtered. At the same time, the dirt removal cover separates the filtered water source and impurities, so as to avoid the impurities and water source from mixing and affecting the filtration effect. 2. This utility model, through the combined use of a flushing water pipe and a spray nozzle, can further clean the fine filter cartridge and improve its filtration efficiency. 3. By setting the tilt angle to - degrees, this utility model can reduce the sliding speed of impurities in the coarse filter cartridge, improve the removal rate of moisture from impurities, and at the same time avoid the tilt angle being too large, which would lead to insufficient filtration. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 This is a right-side stereoscopic view of one embodiment of the present invention; Figure 2 This is a left-side stereoscopic view of one embodiment of the present invention; Figure 3 This is a three-dimensional sectional view of a self-cleaning fine filter assembly according to an embodiment of the present invention; Figure 4 This is a three-dimensional schematic diagram of a scraping plate and a receiving groove according to an embodiment of the present invention; Figure 5 This is a three-dimensional disassembled schematic diagram of a coarse filter component according to an embodiment of the present invention.

[0015] The attached diagram lists the components represented by each number as follows: 1. Stain removal hood; 2. Self-cleaning fine filter assembly; 21. Fine filter cartridge; 22. Fixed cartridge one; 23. Support frame one; 24. Material receiving trough; 25. Scraper; 26. Fixed hoop one; 27. Idler roller one; 28. Flushing water pipe; 29. ​​Nozzle; 3. Coarse filter assembly; 31. Coarse filter cartridge; 32. Fixed cartridge two; 33. Support frame two; 34. Sewage discharge trough; 35. Fixed hoop two; 36. Idler roller two; 4. Liquid inlet pipe; 5. Fixed frame; 6. Feed hopper; 7. Drive motor; 8. Gear; 9. External gear ring. Detailed Implementation

[0016] In the following description, embodiments of the wastewater pretreatment and decontamination device of the present invention will be described with reference to the accompanying drawings.

[0017] Figure 1-5 This invention illustrates a wastewater pretreatment and decontamination device according to an embodiment of the present invention, comprising: The system comprises a dust removal hood 1, a self-cleaning fine filter assembly 2, and a coarse filter assembly 3. The coarse filter assembly 3 is located inside the self-cleaning fine filter assembly 2 and extends to the outside of the self-cleaning fine filter assembly 2. Specifically, the coarse filter assembly 3 includes a coarse filter cylinder 31 that rotates inside the dust removal hood 1. Fixed cylinders 32 are fixedly installed on both the left and right sides of the coarse filter cylinder 31, extending to the outside of the self-cleaning fine filter assembly 2. Support frames 33 are provided on both the left and right sides of the self-cleaning fine filter assembly 2. The fixed cylinders 32 rotate within the inner cavity of the support frames 33. A fixed support is installed on the left side of the left support frame 33. The drain trough 34 is located at the bottom of the self-cleaning fine filter assembly 2. Specifically, a fixing hoop 35 is fixedly installed on the outer surface of the fixing cylinder 2 32, and a roller 36 that cooperates with the fixing hoop 35 is fixedly installed in the inner cavity of the support frame 2 33. The self-cleaning fine filter assembly 2 is set in the inner cavity of the cleaning hood 1 and extends to the outer side of the cleaning hood 1. Specifically, the self-cleaning fine filter assembly 2 includes a fine filter cylinder 21 that rotates in the inner cavity of the cleaning hood 1. Fixing cylinders 22 are fixedly installed on both the left and right sides of the fine filter cylinder 21, and the fixing cylinders 22 extend to the outer side of the cleaning hood 1. Support frames 23 are provided on both sides. A fixed cylinder 22 rotates within the inner cavity of the support frame 23. A receiving trough 24 and a scraper 25 are fixedly installed at the top between the two support frames 23. The scraper 25 is located at the top of the receiving trough 24, and its top contacts the surface of the inner cavity of the fine filter cylinder 21. The receiving trough 24 does not contact the coarse filter assembly 3. Specifically, a fixing hoop 26 is fixedly installed on the outer surface of the fixed cylinder 22. Multiple rollers 27 that cooperate with the fixing hoop 26 are installed inside the support frame 23. A flushing water pipe 28 is fixedly installed at the top of the inner cavity of the dirt removal hood 1. A nozzle 29 is installed at the bottom of the flushing water pipe 28, facing the inner cavity of the receiving trough 24. Through the combined use of the flushing water pipe 28 and the nozzle 29, the fine filter cartridge 21 can be further cleaned, improving the filtration efficiency of the fine filter cartridge 21. The self-cleaning fine filter assembly 2 and the coarse filter assembly 3 are both installed at an angle of 3-5 degrees to the lower left. By setting the angle of inclination to 3-5 degrees, the sliding speed of impurities in the coarse filter cartridge 31 can be reduced, improving the removal rate of water in the impurities. At the same time, it can avoid the inclination angle being too large, resulting in insufficient filtration. A drain hole is provided at the bottom of the dirt removal hood 1. It also includes an inlet pipe 4, which is located on the right side of the dirt removal hood 1. The inlet pipe 4 extends to the middle of the inner cavity of the coarse filter assembly 3. Specifically, a fixing bracket 5 is fixedly installed at the bottom of the inlet pipe 4, and a feed hopper 6 is provided at one end of the inlet pipe 4 that extends to the outside of the coarse filter assembly 3.

[0018] Specifically, an external gear ring 9 is fixedly installed on the surface of both the right fixed cylinder 1 22 and the right fixed cylinder 2 32. A drive motor 7 is fixedly installed on the top of the inner cavity of both the right support frame 1 23 and the right support frame 2 33. A gear 8 is fixedly installed on the output shaft of the drive motor 7, and the gear 8 meshes with the external gear ring 9. Working Principle: When using this invention, the user starts the drive motor 7, which drives the gear 8 to rotate. This causes the coarse filter cylinder 31 and the fixed cylinder 2 32 to rotate between the two support frames 2 33, and the fine filter cylinder 21 and the fixed cylinder 1 22 to rotate between the two support frames 1 23. Wastewater is then discharged into the feed hopper 6 and introduced into the inner cavity of the coarse filter cylinder 31 through the liquid inlet pipe 4. At this time, the coarse filter cylinder 31 performs preliminary filtration of the wastewater. The filtered impurities are discharged into the inner cavity of the drain trough 34 as the coarse filter cylinder 31 rotates. The filtered wastewater then enters the inner cavity of the fine filter cylinder 21 for further filtration. In the second filtration, due to the small size of the impurity particles, the filtered impurities will adhere to the surface of the fine filter cartridge 21. As the fine filter cartridge 21 rotates, the impurities are scraped off by the scraper plate 25 and fall into the inner cavity of the receiving trough 24 for collection and discharge. When the impurities on the surface of the fine filter cartridge 21 clog the fine filter cartridge 21 and affect the filtration effect, they can be cleaned by the high-pressure water jet sprayed from the nozzle 29 to improve the filtration efficiency of the fine filter cartridge 21. The wastewater filtered by the fine filter cartridge 21 will be discharged from the drain hole at the bottom of the dirt removal cover 1 to achieve solid-liquid separation and avoid impurities from mixing with the water source, which would affect the filtration effect.

[0019] In summary, this wastewater pretreatment and decontamination device, by having both the self-cleaning fine filter component 2 and the coarse filter component 3 tilted to the lower left, filters wastewater as they rotate. At the same time, the decontamination hood 1 separates the filtered water from impurities, preventing impurities from mixing with the water and affecting the filtration effect.

Claims

1. A wastewater pretreatment and decontamination device, characterized in that, include: The filter includes a dust removal cover (1), a self-cleaning fine filter assembly (2), and a coarse filter assembly (3). The coarse filter assembly (3) is located in the inner cavity of the self-cleaning fine filter assembly (2) and extends to the outside of the self-cleaning fine filter assembly (2). The self-cleaning fine filter assembly (2) is located in the inner cavity of the dust removal cover (1) and extends to the outside of the dust removal cover (1). Both the self-cleaning fine filter assembly (2) and the coarse filter assembly (3) are installed at an angle of 3-5 degrees to the lower left. The bottom of the dust removal cover (1) is provided with a drain hole. The liquid inlet pipe (4) is located on the right side of the dirt removal hood (1) and extends to the middle of the inner cavity of the coarse filter assembly (3).

2. The wastewater pretreatment and decontamination device according to claim 1, characterized in that, A fixing bracket (5) is fixedly installed at the bottom of the liquid inlet pipe (4), and a feed hopper (6) is provided at one end of the liquid inlet pipe (4) extending to the outside of the coarse filter assembly (3).

3. The wastewater pretreatment and decontamination device according to claim 1, characterized in that, The self-cleaning fine filter assembly (2) includes a fine filter cylinder (21) that rotates inside the cleaning hood (1). Fixed cylinders (22) are fixedly installed on both the left and right sides of the fine filter cylinder (21). The fixed cylinders (22) extend to the outside of the cleaning hood (1). Support frames (23) are provided on both the left and right sides of the cleaning hood (1). The fixed cylinders (22) rotate inside the support frames (23). A receiving groove (24) and a scraper (25) are fixedly installed on the top between the two support frames (23). The scraper (25) is located on the top of the receiving groove (24). The top of the scraper (25) is in contact with the surface of the inner cavity of the fine filter cylinder (21). The receiving groove (24) and the coarse filter assembly (3) are not in contact.

4. The wastewater pretreatment and decontamination device according to claim 3, characterized in that, A fixing hoop (26) is fixedly installed on the outer surface of the fixing cylinder (22). A plurality of rollers (27) that cooperate with the fixing hoop (26) are installed in the inner cavity of the support frame (23). A flushing water pipe (28) is fixedly installed on the top of the inner cavity of the cleaning hood (1). A nozzle (29) is installed on the bottom of the flushing water pipe (28). The nozzle (29) faces the inner cavity of the receiving trough (24).

5. The wastewater pretreatment and decontamination device according to claim 1, characterized in that, The coarse filter assembly (3) includes a coarse filter cylinder (31) that rotates inside the cleaning hood (1). Fixed cylinders (32) are fixedly installed on both the left and right sides of the coarse filter cylinder (31). The fixed cylinders (32) extend to the outside of the self-cleaning fine filter assembly (2). Support frames (33) are provided on both the left and right sides of the self-cleaning fine filter assembly (2). The fixed cylinders (32) rotate inside the support frames (33). A drain trough (34) is fixedly installed on the left side of the left support frame (33). The drain trough (34) is located at the bottom of the self-cleaning fine filter assembly (2).

6. The wastewater pretreatment and decontamination device according to claim 5, characterized in that, The outer surface of the fixed cylinder two (32) is fixedly installed with a fixing hoop two (35), and the inner cavity of the support frame two (33) is fixedly installed with a roller two (36) that works in conjunction with the fixing hoop two (35).

7. The wastewater pretreatment and decontamination device according to claim 3 or 5, characterized in that, External gear rings (9) are fixedly installed on the surface of right fixed cylinder one (22) and right fixed cylinder two (32). Drive motors (7) are fixedly installed on the top of the inner cavity of right support frame one (23) and right support frame two (33). A gear (8) is fixedly installed on the output shaft of the drive motor (7). The gear (8) meshes with the external gear ring (9).

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