Circulating desanding device for sewage treatment

Abstract

The utility model discloses a circulating desanding device for sewage treatment, and relates to the technical field of sewage treatment, the circulating desanding device comprises a fixed bottom plate and a filter assembly, the left end of the upper surface of the fixed bottom plate is provided with a supporting stand column, and the filter assembly is arranged at the top of the supporting stand column; the filtering assembly comprises a filtering tank, a sand filtering net, an impurity filtering net, a drainage valve, a water conveying pipe, a drainage pump, a drainage pipe and a sealing door, the filtering tank is arranged at the top of the supporting stand column, the sand filtering net is installed at the upper end in the filtering tank, the impurity filtering net is arranged below the sand filtering net, and the drainage valve is installed at the bottom of the filtering tank. According to the circulating sand removing device for sewage treatment, through the filtering assembly, gravel and other impurities in sewage can be further intercepted and filtered through multiple filtering mechanisms, the sand removing efficiency is improved, meanwhile, the filtering mechanisms are conveniently cleaned, blockage is prevented, through the draining assembly, the gravel can be drained through the device, and the filtering efficiency is improved. Therefore, the water can be conveniently recycled.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a circulating sand removal device for wastewater treatment. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. This process mainly uses physical, chemical, and biological methods to separate, remove, and recycle pollutants in wastewater, or to convert them into harmless substances. Wastewater treatment requires a circulating sand removal device, which is a specially designed device for solid-liquid separation in wastewater treatment. Through specific working principles and structural design, it effectively removes solid impurities such as sand particles from wastewater. However, current circulating sand removal devices for wastewater treatment still have the following shortcomings:

[0003] For example, patent document CN221867578U discloses a wastewater treatment sand removal device. This wastewater treatment sand removal device can use a drain pipe to transport the water filtered inside the filter cylinder to the outside of the sand removal cylinder, while the filtered silt accumulates inside the sand removal cylinder, which facilitates the subsequent centralized cleaning of the silt. However, its overall sand removal efficiency is low, and it is prone to clogging during the sand removal process.

[0004] Therefore, in view of this, we have studied and improved the existing structure to propose a circulating sand removal device for sewage treatment. Utility Model Content

[0005] The purpose of this invention is to provide a circulating sand removal device for sewage treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circulating sand removal device for sewage treatment, comprising a fixed base plate and a filter assembly. A supporting column is installed on the left end of the upper surface of the fixed base plate. The filter assembly is disposed on the top of the supporting column and includes a filter tank, a filter sand screen, a filter debris screen, a drain valve, a water supply pipe, a drain pump, a drain pipe, and a sealing door. The filter tank is disposed on the top of the supporting column, and a filter sand screen is installed on the upper end of the filter tank, with a filter debris screen below the filter sand screen. A drain valve is installed at the bottom of the filter tank, and a water supply pipe is installed at the bottom of the drain valve. A drain pump is disposed on the right end of the water supply pipe, and a drain pipe is installed at the front end of the drain pump. A sealing door is connected to the front hinge of the filter tank.

[0007] Furthermore, a support base is provided on the right end of the upper surface of the fixed base plate, and a draining component for draining water is provided on the top of the support base.

[0008] Furthermore, the draining assembly includes a draining box, an inclined filter screen, and a drain valve. The draining box is located on top of the support base. An inclined filter screen is installed at the lower end of the interior of the draining box, and a drain valve is provided on the lower side of the draining box.

[0009] Furthermore, the drain assembly also includes a discharge port and a sealing plate, and the discharge port is provided at the lower front end of the drain box, with the sealing plate slidably connected to the inner side of the discharge port.

[0010] Furthermore, support poles are installed on both sides of the upper surface of the fixed base plate, and support rings are provided at the top of the support poles.

[0011] Furthermore, a sand removal tank is provided inside the support ring, and a filter screen is installed inside the sand removal tank.

[0012] Furthermore, a servo motor is installed on the left side of the sand removal tank, and the output end of the servo motor is connected to a spiral conveying rod through a coupling. The spiral conveying rod passes through the left side of the filter cylinder and extends into the interior of the filter cylinder.

[0013] Furthermore, a water inlet hopper is installed on the upper left side of the sand removal tank, and a water outlet is provided on the lower side of the sand removal tank. The lower side of the water outlet is connected to the top of the filter tank. A sand discharge square pipe is installed on the lower right side of the sand removal tank, and the lower side of the sand discharge square pipe is connected to the upper side of the drain box.

[0014] This utility model provides a circulating sand removal device for sewage treatment, which has the following beneficial effects:

[0015] 1. This utility model incorporates a filtration assembly, including a filter tank, a sand filter, a debris filter, a drain valve, a water supply pipe, a drain pump, a drain pipe, and a sealing door. In use, wastewater after sand and gravel separation enters the filter tank through the outlet. The sand filter intercepts and filters smaller sand and gravel, while the debris filter further filters other smaller impurities in the wastewater. Opening the drain valve activates the drain pump, which pumps water through the water supply pipe to the drain pipe, from which the water is then discharged. Opening the sealing door allows for cleaning of the sand filter and debris filter surfaces. This multi-stage filtration system effectively intercepts and filters sand and other impurities in the wastewater, improving sand removal efficiency and facilitating cleaning of the filtration mechanism to prevent clogging.

[0016] 2. This utility model incorporates a drainage component, which includes a drainage box, an inclined filter screen, and a water outlet valve. The drainage component also includes a discharge port and a sealing plate. In use, the separated sand and gravel enter the drainage box through the sand discharge square pipe. The sand and gravel with water fall directly onto the inclined filter screen, which intercepts the sand and gravel. The water outlet valve is opened to discharge and recycle the drained water. The sealing plate is slid open, and due to the inclined structure of the inclined filter screen, the sand and gravel on its surface will naturally roll off and be discharged through the discharge port. Thus, the device can drain the sand and gravel to facilitate water recycling. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a circulating sand removal device for sewage treatment according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the filter assembly of a circulating sand removal device for sewage treatment according to the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the dewatering component of a circulating sand removal device for sewage treatment according to this utility model;

[0020] Figure 4 This is a three-dimensional sectional view of the sand removal tank of a circulating sand removal device for sewage treatment according to this utility model.

[0021] In the diagram: 1. Fixed base plate; 2. Support column; 3. Filter assembly; 301. Filter tank; 302. Filter sand screen; 303. Filter debris screen; 304. Drain valve; 305. Water supply pipe; 306. Drain pump; 307. Drain pipe; 308. Sealing door; 4. Support base; 5. Drain assembly; 501. Drain box; 502. Inclined filter screen; 503. Water outlet valve; 504. Discharge port; 505. Sealing plate; 6. Support pole; 7. Support ring; 8. Sand removal tank; 9. Filter screen cylinder; 10. Servo motor; 11. Screw conveyor rod; 12. Water inlet hopper; 13. Water outlet; 14. Sand discharge square pipe. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figures 1 to 4As shown, a circulating sand removal device for sewage treatment includes a fixed base plate 1 and a filter assembly 3. A support column 2 is installed on the left end of the upper surface of the fixed base plate 1. The filter assembly 3 is located on the top of the support column 2 and includes a filter tank 301, a sand filter 302, a debris filter 303, a drain valve 304, a water supply pipe 305, a drain pump 306, a drain pipe 307, and a sealing door 308. The filter tank 301 is located on the top of the support column 2. The upper end of the filter tank 301 is equipped with a sand filter 302, and the debris filter 303 is located below the sand filter 302. The bottom of the filter tank 301 is equipped with a drain valve 304, and the bottom of the drain valve 304 is equipped with a water supply pipe 305. The right end of the water supply pipe 305 is equipped with a drain pump 306, and the front end of the drain pump 306 is equipped with a drain pipe 307. The front hinge of the filter tank 301 is connected to the sealing door 308.

[0024] The specific operation is as follows: When in use, the wastewater after separating sand and gravel enters the filter tank 301 through the outlet 13. The sand filter 302 intercepts and filters the smaller sand and gravel, while the debris filter 303 further filters other smaller impurities in the wastewater. After opening the drain valve 304, the drain pump 306 is started. The drain pump 306 pumps water to the drain pipe 307 through the water supply pipe 305, and then the water is discharged through the drain pipe 307. After opening the sealing door 308, the surfaces of the sand filter 302 and the debris filter 303 can be cleaned.

[0025] Please refer to Figure 3 A support base 4 is provided on the right end of the upper surface of the fixed base plate 1, and a draining component 5 for draining water is provided on the top of the support base 4. The draining component 5 includes a draining box 501, an inclined filter screen 502 and a water outlet valve 503. The draining box 501 is located on the top of the support base 4. An inclined filter screen 502 is installed at the lower end of the inside of the draining box 501, and a water outlet valve 503 is provided on the lower side of the draining box 501. The draining component 5 also includes a discharge port 504 and a sealing plate 505. The discharge port 504 is opened at the lower front end of the draining box 501, and the sealing plate 505 is slidably connected to the inner side of the discharge port 504.

[0026] The specific operation is as follows: When in use, the separated sand and gravel enter the drain box 501 through the sand outlet square pipe 14. The sand and gravel with water fall directly onto the inclined filter screen 502. The inclined filter screen 502 intercepts the sand and gravel. The drain valve 503 is opened to discharge and recycle the drained water. The sealing plate 505 is slid open. Due to the inclined structure of the inclined filter screen 502, the sand and gravel on its surface will naturally roll off and be discharged through the discharge port 504.

[0027] Please refer to Figure 1 and Figure 4Supporting rods 6 are installed on both sides of the upper surface of the fixed base plate 1, and a supporting ring 7 is provided at the top of the supporting rods 6. A sand removal tank 8 is provided inside the supporting ring 7, and a filter screen cylinder 9 is installed inside the sand removal tank 8. A servo motor 10 is installed on the left side of the sand removal tank 8, and the output end of the servo motor 10 is connected to a spiral conveying rod 11 through a coupling. The spiral conveying rod 11 passes through the left side of the filter screen cylinder 9 and extends into the inside of the filter screen cylinder 9. A water inlet hopper 12 is installed on the upper left side of the sand removal tank 8, and a water outlet 13 is provided on the lower side of the sand removal tank 8. The lower side of the water outlet 13 is connected to the top of the filter tank 301. A sand discharge square pipe 14 is installed on the lower right side of the sand removal tank 8, and the lower side of the sand discharge square pipe 14 is connected to the upper side of the drain box 501.

[0028] The specific operation is as follows: When in use, sewage enters the filter screen cylinder 9 in the sand removal tank 8 through the inlet bucket 12. The servo motor 10 is started, which drives the spiral conveyor rod 11 to rotate, which drives the sewage mixed with sand and gravel to be transported forward. When the sewage moves to the outlet 13, it will directly enter the filter tank 301 through the outlet 13. The sand and gravel continue to move forward until they enter the drain box 501 through the sand outlet square pipe 14.

[0029] In summary, as Figures 1 to 4 As shown, this wastewater treatment circulating sand removal device operates as follows: First, wastewater enters the filter screen cylinder 9 in the sand removal tank 8 through the inlet hopper 12. The servo motor 10 is then activated, causing the screw conveyor 11 to rotate, thus conveying the wastewater mixed with sand and gravel forward. When the wastewater reaches the outlet 13, it directly enters the filter tank 301. The wastewater, after sand and gravel separation, enters the filter tank 301 through the outlet 13. The sand filter 302 intercepts and filters smaller sand and gravel, while the debris filter 303 further filters other smaller impurities in the wastewater. After opening the drain valve 304, the drain pump 306 is started, and the drain pump 306 pumps water... Pipe 305 pumps water into drain pipe 307, and then drains the water out through drain pipe 307. After opening the sealing door 308, the surface of the filter sand screen 302 and the filter debris screen 303 can be cleaned. The sand and gravel continue to move forward until they enter the drain box 501 through the sand outlet square pipe 14. The separated sand and gravel enter the drain box 501 through the sand outlet square pipe 14. The sand and gravel with water fall directly onto the inclined filter screen 502. The inclined filter screen 502 intercepts the sand and gravel. Open the water outlet valve 503 to discharge and recycle the drained water. Slide open the sealing plate 505. Due to the inclined structure of the inclined filter screen 502, the sand and gravel on its surface will naturally roll off and be discharged through the discharge port 504.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A circulating sand removal device for sewage treatment, comprising a fixed bottom plate (1) and a filter assembly (3), characterized in that: A support column (2) is installed on the left end of the upper surface of the fixed base plate (1). The filter assembly (3) is set on the top of the support column (2), and the filter assembly (3) includes a filter tank (301), a filter screen (302), a filter debris screen (303), a drain valve (304), a water pipe (305), a drain pump (306), a drain pipe (307), and a sealing door (308). The filter tank (301) is set on the top of the support column (2), and the filter tank (301) The filter tank (301) is equipped with a filter screen (302) at the upper part of the interior and a filter screen (303) is provided below the filter screen (302). The filter tank (301) is equipped with a drain valve (304) at the bottom and a water supply pipe (305) is installed at the bottom of the drain valve (304). A drain pump (306) is provided at the right end of the water supply pipe (305) and a drain pipe (307) is installed at the front end of the drain pump (306). A sealing door (308) is connected to the front hinge of the filter tank (301).

2. The circulating sand removal device for sewage treatment according to claim 1, characterized in that, A support base (4) is provided on the right end of the upper surface of the fixed base plate (1), and a draining component (5) for draining water is provided on the top of the support base (4).

3. A circulating sand removal device for wastewater treatment according to claim 2, characterized in that, The drain assembly (5) includes a drain box (501), an inclined filter screen (502), and a water outlet valve (503). The drain box (501) is located on the top of the support base (4). An inclined filter screen (502) is installed at the lower end of the interior of the drain box (501), and a water outlet valve (503) is provided on the lower side of the drain box (501).

4. A circulating sand removal device for wastewater treatment according to claim 3, characterized in that, The drain assembly (5) also includes a discharge port (504) and a sealing plate (505), and the lower front end of the drain box (501) is provided with a discharge port (504), and the inner side of the discharge port (504) is slidably connected with the sealing plate (505).

5. A circulating sand removal device for wastewater treatment according to claim 1, characterized in that, The fixed base plate (1) has support poles (6) installed on both sides of its upper surface, and a support ring (7) is provided on the top of the support poles (6).

6. A circulating sand removal device for wastewater treatment according to claim 5, characterized in that, The inner side of the support ring (7) is provided with a sand removal tank (8), and a filter screen cylinder (9) is installed inside the sand removal tank (8).

7. A circulating sand removal device for wastewater treatment according to claim 6, characterized in that, A servo motor (10) is installed on the left side of the sand removal tank (8), and the output end of the servo motor (10) is connected to a spiral conveying rod (11) through a coupling. The spiral conveying rod (11) passes through the left side of the filter screen cylinder (9) and extends into the interior of the filter screen cylinder (9).

8. A circulating sand removal device for wastewater treatment according to claim 6, characterized in that, The sand removal tank (8) is equipped with a water inlet hopper (12) on the upper left side, and a water outlet (13) is provided on the lower side of the sand removal tank (8). The lower side of the water outlet (13) is connected to the top of the filter tank (301). The sand removal tank (8) is equipped with a sand outlet square pipe (14) on the lower right side, and the lower side of the sand outlet square pipe (14) is connected to the upper side of the drain box (501).

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