An external wastewater treatment device for soil improvement

Abstract

This utility model relates to the technical field of sewage treatment equipment and discloses an external sewage treatment device for soil improvement, including a sewage filter cylinder and a sewage neutralization tank. The sewage filter cylinder has a first fixing ring and a second fixing ring fixedly connected inside. A filter screen cylinder is bolted to the top surface of the first fixing ring. A cleaning assembly is rotatably installed inside the filter screen cylinder. The bottom end of the sewage filter cylinder is connected to a cone cylinder via a flange. This utility model can efficiently maintain the continuous and stable operation of the filtration system. It uses a geared motor to drive a sprocket transmission, causing the rotating rod and scraper to rotate. Under the action of a first spring, the scraper tightly adheres to the inner wall of the filter screen cylinder, automatically cleaning the attached solid impurities, preventing filter clogging, and ensuring continuous filtration effect. Simultaneously, impurities fall into the cone cylinder for centralized collection and are conveniently discharged through a drain valve, reducing the frequency of manual cleaning and improving sewage treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment equipment, specifically an external sewage treatment device for soil improvement. Background Technology

[0002] Soil improvement is the process of enhancing soil productivity and ecological functions by using physical, chemical, and biological methods to improve the soil's physical and chemical properties, fertility, and ecological environment. During soil improvement, wastewater treatment is often necessary. Direct discharge or use of this wastewater for irrigation can exacerbate soil degradation. Effective wastewater treatment provides clean water sources for soil improvement, reduces the damage of pollutants to the soil, and is a crucial step in ensuring the effectiveness of soil improvement.

[0003] According to a search, Chinese patent document CN218435191U discloses an external sewage treatment device for soil improvement. Sewage enters the filter chamber through the soil improvement device, undergoes preliminary filtration through a first filter screen, and then a secondary filtration through a second filter screen. The sewage then flows into a neutralization chamber. When sludge accumulates on the first filter screen, a cleaning motor drives a rotating rod to clean along the outer wall of the first filter screen, thus ensuring the filtration effect of the first filter screen.

[0004] However, in actual use, the above-mentioned sewage treatment equipment maintains the filtration effect by wiping along the outer wall of the first filter screen with a cleaning rod. However, since the outer surface of the cleaning rod also gets dirty during the wiping process, the filtration effect of the first filter screen cannot be maintained during continuous wiping. Furthermore, the cleaned-off impurities will accumulate inside the first filter screen, further affecting its filtration effect. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, this utility model provides an external sewage treatment device for soil improvement, which has the advantages of continuous filtration effect and improved sewage treatment efficiency, thus solving the above-mentioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an external sewage treatment device for soil improvement, comprising a sewage filter cylinder and a sewage neutralization tank. The sewage filter cylinder has a first fixing ring and a second fixing ring fixedly connected inside. A filter screen cylinder is bolted to the top surface of the first fixing ring. A cleaning assembly is rotatably installed inside the filter screen cylinder. A conical cylinder is connected to the bottom of the sewage filter cylinder via a flange. A drain valve is connected to the bottom of the conical cylinder via a flange. A top plate is fixedly connected to the top of the sewage neutralization tank. A gantry frame is fixedly connected to the top surface of the top plate. A reduction motor is installed on the top surface of the gantry frame. The cleaning assembly includes a rotating rod, a collar is sleeved on the outer surface of the rotating rod, a connecting rod is inserted inside the collar, a first spring is sleeved on the outer surface of the connecting rod, a scraper is inserted into one end of the connecting rod, a C-shaped frame is fixedly connected to the outer surface of the connecting rod, a pin is inserted inside the C-shaped frame, a second spring is sleeved on the outer surface of the pin, and a cap is connected to one end of the pin by a screw.

[0009] Preferably, a sewage inlet pipe is fixedly connected to the outer peripheral surface of the sewage filter cylinder near the top, and a connecting pipe is fixedly connected to the outer peripheral surface of the sewage filter cylinder near the bottom.

[0010] Preferably, the bottom end of the filter cylinder is inserted into the interior of the second fixing ring, and a sealing gasket is tightly fitted between the second fixing ring and the filter cylinder.

[0011] Preferably, the end of the connecting pipe away from the sewage filter cylinder is connected to the inlet pipe via a flange, and one end of the inlet pipe is fixedly connected to a sewage neutralization tank. The top plate is rotatably connected to a stirring shaft, and the bottom end of the stirring shaft is fixedly connected to a stirring paddle.

[0012] Preferably, a sprocket is fixedly connected to the top end of the stirring shaft, a sprocket is fixedly connected to the output shaft of the reduction motor, a sprocket is fixedly connected to the top end of the rotating rod, and a chain is connected between the sprocket and the sprocket.

[0013] Preferably, one end of the first spring abuts against the scraper, and the other end of the first spring abuts against the collar, the connecting rod is inserted into the collar and the rotating rod, a retaining ring is fixedly connected to the outer circumferential surface of the pin, one end of the second spring abuts against the retaining ring, and a pull ring is fixedly connected to the outer surface of the cap.

[0014] Preferably, a dosing pump is fixedly connected to the top surface of the top plate, the suction end of the dosing pump is connected to a liquid extraction pipe, one end of the liquid extraction pipe is connected to a liquid tank, and the discharge end of the dosing pump is connected to a dosing pipe.

[0015] Compared with the prior art, this utility model provides an external sewage treatment device for soil improvement, which has the following beneficial effects: 1. This utility model can efficiently maintain the continuous and stable operation of the filtration system. It drives the sprocket transmission through the reduction motor, which makes the rotating rod and scraper rotate. Under the action of the first spring, the scraper tightly adheres to the inner wall of the filter screen cylinder, which can automatically clean the attached solid impurities, avoid filter screen clogging, and ensure the continuity of filtration effect. At the same time, the impurities fall into the cone and are collected, and are conveniently discharged through the drain valve, reducing the frequency of manual cleaning, improving the sewage treatment efficiency, allowing the equipment to work stably for a long time, and reducing the downtime maintenance costs caused by clogging.

[0016] 2. This utility model realizes the automation and convenient maintenance of sewage treatment; the dosing pump can automatically and quantitatively extract the chemical solution and accurately deliver it into the sewage neutralization tank. With the stirring paddle driven by the stirring shaft, the sewage and chemical solution are fully mixed, and the neutralization treatment is completed efficiently, ensuring that the water quality is suitable for soil improvement; in addition, when the scraper or filter screen is worn, the scraper can be quickly replaced by pulling the pull ring to remove the pin. The filter screen is also easy to disassemble and replace, which greatly reduces the difficulty and time cost of maintenance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3 This is a three-dimensional schematic diagram of the cleaning component in this utility model; Figure 4 This is a partial schematic diagram of the cleaning component in this utility model; Figure 5 This utility model Figure 4 A magnified view of part A in the diagram.

[0018] The components include: 1. Sewage filter cylinder; 2. First fixing ring; 3. Second fixing ring; 4. Filter screen cylinder; 5. Cleaning assembly; 51. Rotating rod; 52. Collar; 53. Connecting rod; 54. First spring; 55. Scraper; 56. C-shaped frame; 57. Pin; 58. Second spring; 59. Cap; 6. Conical cylinder; 7. Drain valve; 8. Sewage neutralization tank; 9. Top plate; 10. Gantry frame; 11. Gear motor; 12. Sewage inlet pipe; 13. Connecting pipe; 14. Sealing gasket; 15. Inlet pipe; 16. Stirring shaft; 17. Dosing pump; 18. Liquid extraction pipe; 19. Liquid tank; 20. Dosing pipe. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 An external sewage treatment device for soil improvement includes a sewage filter cylinder 1 and a sewage neutralization tank 8. The sewage filter cylinder 1 is fixedly connected to a first fixing ring 2 and a second fixing ring 3. The top surface of the first fixing ring 2 is bolted to a filter screen cylinder 4. A cleaning component 5 is rotatably installed inside the filter screen cylinder 4. The bottom end of the sewage filter cylinder 1 is connected to a cone cylinder 6 through a flange. The bottom of the cone cylinder 6 is connected to a drain valve 7 through a flange. The top of the sewage neutralization tank 8 is fixedly connected to a top plate 9. A gantry frame 10 is fixedly connected to the top surface of the top plate 9. A reduction motor 11 is installed on the top surface of the gantry frame 10. The cleaning assembly 5 includes a rotating rod 51, a collar 52 sleeved on the outer surface of the rotating rod 51, a connecting rod 53 inserted inside the collar 52, a first spring 54 sleeved on the outer surface of the connecting rod 53, a scraper 55 inserted into one end of the connecting rod 53, a C-shaped bracket 56 fixedly connected to the outer surface of the connecting rod 53, a pin 57 inserted inside the C-shaped bracket 56, a second spring 58 sleeved on the outer surface of the pin 57, and a cap 59 connected to one end of the pin 57 by a screw.

[0021] Specifically, a sewage inlet pipe 12 is fixedly connected to the outer periphery of the sewage filter cylinder 1 near the top, and a connecting pipe 13 is fixedly connected to the outer periphery of the sewage filter cylinder 1 near the bottom.

[0022] Specifically, the bottom end of the filter cylinder 4 is inserted into the interior of the second fixing ring 3, and a sealing gasket ring 14 is tightly fitted between the second fixing ring 3 and the filter cylinder 4.

[0023] The advantage is that sewage is pumped into the sewage filter cylinder 1 through the sewage inlet pipe 12. Then, the sewage passes through the filter screen cylinder 4 to filter solid impurities, while the liquid part passes through the filter screen cylinder 4 and enters the sewage neutralization tank 8 through the connecting pipe 13 and the inlet pipe 15, thus completing the preliminary treatment of sewage. The sealing gasket ring 14 is tightly fitted between the second fixing ring 3 and the filter screen cylinder 4 to ensure airtightness, so that sewage without unfiltered impurities will not pass through the bottom of the filter screen cylinder 4 and enter the connecting pipe 13.

[0024] Specifically, the end of the connecting pipe 13 away from the sewage filter cylinder 1 is connected to the inlet pipe 15 via a flange. One end of the inlet pipe 15 is fixedly connected to the sewage neutralization tank 8. The top plate 9 is rotatably connected to the stirring shaft 16, and the bottom end of the stirring shaft 16 is fixedly connected to the stirring paddle.

[0025] The advantage is that after the wastewater passes through the initial filtration of solid impurities, it enters the wastewater neutralization tank 8. By adding chemicals into the wastewater neutralization tank 8 and starting the reduction motor 11, the stirring shaft 16 can be rotated. The stirring shaft 16 drives the stirring paddle at its bottom to rotate, thereby making the wastewater and the chemical solution fully mixed.

[0026] Specifically, a sprocket is fixedly connected to the top of the stirring shaft 16, the output shaft of the reduction motor 11 is fixedly connected to the sprocket, a sprocket is fixedly connected to the top of the rotating rod 51, and a chain is used to drive the sprocket and the sprocket.

[0027] The advantages are that when the geared motor 11 rotates, its output end drives the first sprocket to rotate, which in turn drives the second sprocket to rotate via chain transmission, thereby driving the rotating rod 51 to rotate. The rotating rod 51 drives the collar 52, connecting rod 53 and scraper 55 to rotate synchronously. Under the elastic force of the first spring 54, the multiple scrapers 55 are always in close contact with the inner wall of the filter cylinder 4, continuously scraping the solid impurities attached to the inner wall of the filter cylinder 4, thus achieving automatic cleaning. The scraped impurities fall into the cone 6 under the action of gravity. After accumulating to a certain amount, they can be discharged by opening the drain valve 7. This automatic cleaning method can prevent impurities from clogging the filter cylinder 4, ensure the continuity of the filtration effect, reduce the frequency of manual cleaning, and at the same time, the design of the cone 6 facilitates the centralized collection and discharge of impurities, improving the efficiency of sewage treatment and the stability of equipment operation.

[0028] Specifically, one end of the first spring 54 abuts against the scraper 55, and the other end of the first spring 54 abuts against the collar 52. The connecting rod 53 is inserted into the collar 52 and the rotating rod 51. A retaining ring is fixedly connected to the outer circumference of the pin 57. One end of the second spring 58 abuts against the retaining ring. A pull ring is fixedly connected to the outer surface of the cap 59.

[0029] The advantage is that when the scraper 55 and the filter screen 4 are severely worn, they can be replaced by removing the cover on the top of the sewage filter cylinder 1 and then removing the filter screen 4. By pulling the pull ring on the outer surface of the cap 59, the pin 57 is no longer connected to the scraper 55 and the connecting rod 53, which makes it easy to quickly remove the scraper 55 for replacement.

[0030] Specifically, a dosing pump 17 is fixedly connected to the top surface of the top plate 9. The suction end of the dosing pump 17 is connected to a liquid extraction pipe 18, one end of the liquid extraction pipe 18 is connected to a liquid tank 19, and the discharge end of the dosing pump 17 is connected to a dosing pipe 20.

[0031] The advantage is that the dosing pump 17, fixed on the top surface of the top plate 9, draws the chemical solution for neutralizing wastewater from the chemical solution tank 19 through the extraction pipe 18, and then accurately delivers the chemical solution to the wastewater neutralization tank 8 through the dosing pipe 20. Its main purpose is to realize the automatic and quantitative addition of neutralizing agent to the filtered wastewater. This structural design can ensure that the chemical solution and wastewater are fully mixed in the wastewater neutralization tank 8, neutralizing acidic or alkaline substances in the wastewater through chemical reaction, reducing the corrosiveness of the wastewater, and making the treated wastewater more suitable for soil improvement. This avoids the unneutralized wastewater from directly contacting the soil and aggravating soil acidification and alkalization problems.

[0032] In operation, sewage is pumped into the sewage filter cylinder 1 through the sewage inlet pipe 12. The sewage is filtered through the filter screen cylinder 4, where solid impurities are trapped. The liquid enters the sewage neutralization tank 8 through the connecting pipe 13 and the inlet pipe 15. The reduction motor 11 is started, and its output end drives the first sprocket to rotate. Through chain transmission, the second sprocket and the rotating rod 51 rotate. The rotating rod 51 drives the collar 52, connecting rod 53, and scraper 55 to rotate. Under the action of the first spring 54, the scraper 55 adheres to the inner wall of the filter screen cylinder 4 to clean impurities. The wastewater falls into the cone 6 and accumulates before being discharged through the drain valve 7. The dosing pump 17 draws the chemical solution from the chemical tank 19 through the extraction pipe 18 and sends it into the wastewater neutralization tank 8 through the dosing pipe 20. The geared motor 11 simultaneously drives the stirring shaft 16 and the stirring paddle to rotate, so that the wastewater and the chemical solution are fully mixed to complete the neutralization treatment. The treated wastewater can be used for soil improvement. When the scraper 55 or the filter screen 4 is worn, the relevant parts are removed, and the pull ring is pulled out to remove the pin 57 to replace the scraper 55, or the filter screen 4 is replaced directly.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An external wastewater treatment device for soil improvement, comprising a wastewater filter cartridge (1) and a wastewater neutralization tank (8), characterized in that: The sewage filter cylinder (1) is fixedly connected to a first fixed ring (2) and a second fixed ring (3). The top surface of the first fixed ring (2) is connected to a filter screen cylinder (4) by bolts. The filter screen cylinder (4) is rotatably equipped with a cleaning component (5). The bottom end of the sewage filter cylinder (1) is connected to a cone cylinder (6) by a flange. The bottom of the cone cylinder (6) is connected to a drain valve (7) by a flange. The top of the sewage neutralization tank (8) is fixedly connected to a top plate (9). The top surface of the top plate (9) is fixedly connected to a gantry frame (10). The top surface of the gantry frame (10) is equipped with a geared motor (11). The cleaning assembly (5) includes a rotating rod (51), a collar (52) is sleeved on the outer surface of the rotating rod (51), a connecting rod (53) is inserted inside the collar (52), a first spring (54) is sleeved on the outer surface of the connecting rod (53), a scraper (55) is inserted into one end of the connecting rod (53), a C-shaped frame (56) is fixedly connected to the outer surface of the connecting rod (53), a pin (57) is inserted inside the C-shaped frame (56), a second spring (58) is sleeved on the outer surface of the pin (57), and a cap (59) is connected to one end of the pin (57) by a screw.

2. The external sewage treatment equipment for soil improvement according to claim 1, characterized in that: A sewage inlet pipe (12) is fixedly connected to the outer periphery of the sewage filter cylinder (1) near the top, and a connecting pipe (13) is fixedly connected to the outer periphery of the sewage filter cylinder (1) near the bottom.

3. The external sewage treatment equipment for soil improvement according to claim 1, characterized in that: The bottom end of the filter cylinder (4) is inserted into the interior of the second fixing ring (3), and a sealing gasket (14) is tightly fitted between the second fixing ring (3) and the filter cylinder (4).

4. An external wastewater treatment device for soil improvement according to claim 2, characterized in that: The end of the connecting pipe (13) away from the sewage filter cylinder (1) is connected to the inlet pipe (15) through a flange. One end of the inlet pipe (15) is fixedly connected to the sewage neutralization tank (8). The top plate (9) is rotatably connected to the stirring shaft (16), and the bottom end of the stirring shaft (16) is fixedly connected to the stirring paddle.

5. An external wastewater treatment device for soil improvement according to claim 4, characterized in that: The top end of the stirring shaft (16) is fixedly connected to a sprocket one, the output shaft of the reduction motor (11) is fixedly connected to the sprocket one, the top end of the rotating rod (51) is fixedly connected to a sprocket two, and a chain is connected between the sprocket one and the sprocket two for transmission.

6. The external sewage treatment equipment for soil improvement according to claim 1, characterized in that: One end of the first spring (54) abuts against the scraper (55), and the other end of the first spring (54) abuts against the collar (52). The connecting rod (53) is inserted into the collar (52) and the rotating rod (51). A retaining ring is fixedly connected to the outer circumference of the pin (57). One end of the second spring (58) abuts against the retaining ring. A pull ring is fixedly connected to the outer surface of the cap (59).

7. An external wastewater treatment device for soil improvement according to claim 1, characterized in that: A dosing pump (17) is fixedly connected to the top surface of the top plate (9). The suction end of the dosing pump (17) is connected to a liquid extraction pipe (18), one end of the liquid extraction pipe (18) is connected to a liquid tank (19), and the discharge end of the dosing pump (17) is connected to a dosing pipe (20).

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