Sludge discharge device for sewage treatment

Abstract

The utility model discloses a sludge discharge device for sewage treatment, which belongs to the technical field of sewage treatment and comprises a sewage treatment tank, a feed port is fixedly mounted at the top of the sewage treatment tank, a discharge port is fixedly mounted at the bottom of the sewage treatment tank, and a conical structure is arranged below the sewage treatment tank and used for collecting sludge. An opening and closing assembly is arranged in the sewage treatment tank and used for controlling the flow rate of sludge discharge, a sludge scraping assembly used for cleaning the inner wall of the sewage treatment tank is arranged in the sewage treatment tank, sewage is firstly preliminarily filtered through a filter screen, large solid particles and impurities are effectively removed, convenience is provided for subsequent treatment, and the overall treatment efficiency is improved; through flexible adjustment of the opening and closing assembly, the sludge discharge flow can be accurately controlled, it is ensured that sludge can be rapidly and effectively discharged when needed, the sewage treatment efficiency is further improved, and the situation that a large amount of sludge flows out, and the discharge port is blocked can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically to a mud discharge device for sewage treatment. Background Art

[0002] Wastewater treatment refers to the process of purifying sewage so that it meets the water quality requirements for discharge into a certain water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] The patent with publication number CN220877881U discloses a sludge discharge device for sewage treatment, including a sludge discharge box, a sewage inlet is arranged on the top of the sludge discharge box, a gear is arranged in the inner cavity of the sludge discharge port, a bracket plate is connected to the right side of the bottom of the inner cavity of the sludge discharge box, the right side of the bracket plate and the inner wall of the sludge discharge box form a sludge collecting trough, a sewage discharge port is arranged on the left side of the bottom of the sludge discharge box, a coarse filter plate is arranged on the top of the left outer wall of the bracket plate, a fine filter plate is arranged at the center of the left outer wall of the bracket plate, a scraper plate is arranged on the coarse filter plate, a water conveying plate is arranged on the left bottom outer wall of the bracket plate, and an output motor is fixedly connected to the outer wall of the sludge discharge box. The beneficial effects of the utility model are: impurities in sewage can be fully crushed by the gear device, and multiple filtering devices can be arranged to better filter sewage, and the demand can be met by repeated filtration, and the sludge can be removed through the cleaning door.

[0004] Although the device has many beneficial effects, the following problems still exist: although the sludge discharge device for sewage treatment can better filter sewage and meet the needs through repeated filtration, when a large amount of sludge is discharged, it is easy to cause blockage of the discharge port, thereby affecting the efficiency of sludge discharge. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a sludge discharge device for sewage treatment, which solves the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sludge discharge device for sewage treatment, comprising a sewage treatment tank, a feed port is fixedly installed on the top of the sewage treatment tank, a discharge port is fixedly installed on the bottom of the sewage treatment tank, a conical structure is arranged at the bottom of the sewage treatment tank for collecting sludge, an opening and closing component is arranged inside the sewage treatment tank for controlling the flow rate of sludge discharge, the opening and closing component comprises an outer plate, an inner plate and a connecting block, two inner plates are fixedly connected to the inner wall of the sewage treatment tank, the two inner plates are distributed up and down, the outer surfaces of the two inner plates are rotatably connected to the outer plates, a plurality of annular equidistantly distributed connecting blocks are arranged between the two inner plates, and the plurality of connecting blocks are fan-shaped, and a sludge scraping component for cleaning the inner wall of the sewage treatment tank is arranged inside the sewage treatment tank.

[0009] Preferably, the outer surfaces of the two inner plates are each provided with a plurality of second notches distributed in an annular manner and at equal intervals, and the outer surfaces of the two outer plates are each provided with a plurality of first notches distributed in an annular manner and at equal intervals, and the plurality of first notches are arranged in an arc shape.

[0010] Preferably, a plurality of second notches are slidably connected inside with a connecting column, the connecting column passes through a plurality of first notches and is movably connected to the first notches, and the connecting column is fixedly connected to the corresponding connecting block.

[0011] Preferably, the outer surfaces of the protruding parts of the two outer plates are each provided with a first connection hole, and the outer surfaces of the protruding parts of the two inner plates are each provided with a second connection hole.

[0012] Preferably, a fastening block is fixedly connected to the outer surface of the sewage treatment tank, a movable groove is opened on the outer surface of the fastening block, the two inner plates are located inside the movable groove, and the two outer plates are movably connected to the outer surface of the movable groove.

[0013] Preferably, a filter screen is fixedly connected to the inner wall of the sewage treatment tank, and the filter screen is located above the outer plate.

[0014] Preferably, the scraper assembly includes a drive motor, a threaded rod and a scraper block. The sewage treatment tank is internally rotatably connected with two symmetrically distributed threaded rods. Two symmetrically distributed drive motors are fixedly installed on the top of the sewage treatment tank. The two drive motors pass through the sewage treatment tank and are fixedly connected to the ends of the corresponding threaded rods. The outer surfaces of the two threaded rods are both sleeved with scraper blocks. The two scraper blocks are both arc-shaped structures. The inner wall of the sewage treatment tank is provided with four mutually symmetrical rectangular grooves, and the scraper block is slidably connected to the inside of the corresponding two rectangular grooves.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a sludge discharge device for sewage treatment, which has the following beneficial effects:

[0017] 1. In this sludge discharge device for sewage treatment, the sewage is first preliminarily filtered through a filter screen to effectively remove larger solid particles and impurities, which provides convenience for subsequent treatment and improves the overall treatment efficiency. Through the flexible adjustment of the opening and closing components, the sludge discharge flow rate can be accurately controlled to ensure that the sludge can be discharged quickly and effectively when needed, further improving the efficiency of sewage treatment and preventing a large amount of sludge from flowing out and causing blockage of the discharge port.

[0018] 2. In this sludge discharge device for sewage treatment, the scraper block moves up and down along the threaded rod and fits tightly against the inner wall of the sewage treatment tank, which can effectively scrape off the sludge on the tank wall, prevent the sludge from accumulating on the tank wall, and keep the inside of the sewage treatment tank clean. The timely removal of sludge helps to maintain the stable operation of the treatment system and avoids the decrease in treatment efficiency and the increase in energy consumption due to sludge accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the filter screen of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the practical sewage treatment tank;

[0022] Figure 4 This is a schematic diagram of the structure of the opening and closing component of the utility model;

[0023] Figure 5 This is a schematic diagram of the second notch structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the connecting block structure of the utility model.

[0025] In the figure: 1. sewage treatment tank; 2. feed inlet; 3. discharge outlet; 4. drive motor; 5. movable groove; 6. fastening block; 7. threaded rod; 8. filter screen; 9. scraper block; 10. outer plate; 11. inner plate; 12. connecting column; 13. first notch; 14. connecting block; 15. second notch; 16. first connecting hole; 17. second connecting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 , the utility model provides a technical solution:

[0028] A sludge discharge device for sewage treatment comprises a sewage treatment tank 1, a feed port 2 is fixedly installed on the top of the sewage treatment tank 1, a discharge port 3 is fixedly installed on the bottom of the sewage treatment tank 1, a conical structure is arranged at the bottom of the sewage treatment tank 1 for collecting sludge, an opening and closing component is arranged inside the sewage treatment tank 1 for controlling the flow rate of sludge discharge, the opening and closing component comprises an outer plate 10, an inner plate 11 and a connecting block 14, two inner plates 11 are fixedly connected to the inner wall of the sewage treatment tank 1, the two inner plates 11 are distributed up and down, the outer surfaces of the two inner plates 11 are rotatably connected to the outer plates 10, a plurality of annular equidistantly distributed connecting blocks 14 are arranged between the two inner plates 11, and the plurality of connecting blocks 14 are all fan-shaped, a sludge scraping component for cleaning the inner wall of the sewage treatment tank 1 is arranged inside the sewage treatment tank 1, and the sludge is discharged when the plurality of connecting blocks 14 move outward from the center of the circle.

[0029] Furthermore, the outer surfaces of the two inner plates 11 are each provided with a plurality of second slots 15 distributed in an annular manner and at equal intervals, and the outer surfaces of the two outer plates 10 are each provided with a plurality of first slots 13 distributed in an annular manner and at equal intervals. The plurality of first slots 13 are arranged in an arc shape, and when the position of the first slots 13 changes, the connecting columns 12 are pushed to gather or disperse toward the center of the circle in the second slots 15.

[0030] Furthermore, the interiors of the multiple second slots 15 are slidably connected with connecting columns 12, which pass through the multiple first slots 13 and are movably connected to the first slots 13. The connecting columns 12 are fixedly connected to the corresponding connecting blocks 14. By adjusting the angle of the connecting blocks 14 between the outer plate 10 and the inner plate 11, the degree of overlap between the fan-shaped surface of the connecting block 14 and the second slots 15 and the first slots 13 is changed, so that the mud discharge flow rate can be controlled by flexible adjustment of the opening and closing components.

[0031] Furthermore, the protruding outer surfaces of the two outer panels 10 are each provided with a first connection hole 16, and the protruding outer surfaces of the two inner panels 11 are each provided with a second connection hole 17, and locking can be achieved by inserting a limiting rod into the first connection hole 16 and the second connection hole 17.

[0032] Furthermore, the outer surface of the sewage treatment tank 1 is fixedly connected with a fastening block 6, and a movable groove 5 is opened on the outer surface of the fastening block 6. Two inner plates 11 are located inside the movable groove 5, and two outer plates 10 are movably connected to the outer surface of the movable groove 5. The outer surface of the sewage treatment tank 1 is fixedly connected with a fastening block 6 to provide support and fixation for the opening and closing components, and the movable groove 5 on the fastening block 6 provides a movable space for the outer plate 10.

[0033] Furthermore, a filter screen 8 is fixedly connected to the inner wall of the sewage treatment tank 1, and the filter screen 8 is located above the outer plate 10. The sewage first passes through the filter screen 8 for preliminary filtration to remove larger solid particles and impurities.

[0034] Furthermore, the sludge scraping assembly includes a driving motor 4, a threaded rod 7 and a scraping block 9. The sewage treatment tank 1 is internally rotatably connected with two symmetrically distributed threaded rods 7. Two symmetrically distributed driving motors 4 are fixedly installed on the top of the sewage treatment tank 1. The two driving motors 4 penetrate the sewage treatment tank 1 and are fixedly connected to the ends of the corresponding threaded rods 7. The outer surfaces of the two threaded rods 7 are both sleeved with scraping blocks 9. The two scraping blocks 9 are both in an arc-shaped structure. The inner wall of the sewage treatment tank 1 is provided with four mutually symmetrical rectangular grooves. The scraping block 9 is slidably connected to the inside of the two corresponding rectangular grooves. When the driving motor 4 is started, it drives the threaded rod 7 to rotate. When the threaded rod 7 rotates, the scraping block 9 moves up and down along the threaded rod 7. The arc-shaped structure of the scraping block 9 is tightly fitted with the inner wall of the sewage treatment tank 1. As the scraping block 9 moves up and down, the scraping block 9 scrapes off the sludge on the inner wall of the sewage treatment tank 1 to prevent the sludge from accumulating on the tank wall.

[0035] Working principle: When the staff needs to use the sludge discharge device for sewage treatment, the sewage enters the sewage treatment tank 1 through the feed port 2. The sewage first passes through the filter screen 8 for preliminary filtration to remove larger solid particles and impurities. After the sewage passes through the filter screen 8, it continues to flow downward. The outer surface of the sewage treatment tank 1 is fixedly connected with a fastening block 6 to provide support and fixation for the opening and closing components. The movable groove 5 on the fastening block 6 provides a movable space for the outer plate 10. The protruding parts of the two outer plates 10 are rotated to change the positions of the multiple first notches 13. After the position of the first notch 13 changes, the connecting column 12 is pushed to gather or disperse at the center of the circle in the second notch 15, thereby driving the multiple connecting blocks 14 to move in the same trajectory between the inner plates 11. By adjusting the connecting block 14 between the outer plate 10 and the inner plate 11 The angle changes the overlap degree between the fan-shaped surface of the connecting block 14 and the second notch 15 and the first notch 13, so that the discharge flow of the sludge can be controlled by the flexible adjustment of the opening and closing assembly. When the two inner plates 10 overlap with the protruding parts of the two outer plates 11, the multiple connecting blocks 14 are merged together and can be locked by inserting the limit rod into the first connecting hole 16 and the second connecting hole 17. When the multiple connecting blocks 14 move outward from the center of the circle, the sludge is discharged through the discharge port 3. When the driving motor 4 is started, it drives the threaded rod 7 to rotate. When the threaded rod 7 rotates, the scraper block 9 moves up and down along the threaded rod 7. The arc structure of the scraper block 9 is tightly fitted with the inner wall of the sewage treatment tank 1. As the scraper block 9 moves up and down, the scraper block 9 scrapes off the sludge on the inner wall of the sewage treatment tank 1 to prevent the sludge from accumulating on the tank wall.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A sludge discharge device for sewage treatment, comprising a sewage treatment tank (1), wherein a feed inlet (2) is fixedly mounted on the top of the sewage treatment tank (1), and a discharge outlet (3) is fixedly mounted on the bottom of the sewage treatment tank (1), characterized in that: The bottom of the sewage treatment tank (1) is provided with a conical structure for collecting sludge. An opening and closing component is provided inside the sewage treatment tank (1) for controlling the flow rate of sludge discharge. The opening and closing component comprises an outer plate (10), an inner plate (11) and a connecting block (14). Two inner plates (11) are fixedly connected to the inner wall of the sewage treatment tank (1). The two inner plates (11) are distributed up and down. The outer surfaces of the two inner plates (11) are rotatably connected to the outer plate (10). A plurality of annular connecting blocks (14) are equidistantly distributed between the two inner plates (11). The plurality of connecting blocks (14) are all fan-shaped. A sludge scraping component for cleaning the inner wall of the sewage treatment tank (1) is provided inside the sewage treatment tank (1).

2. A sludge discharge device for sewage treatment according to claim 1, characterized in that: The outer surfaces of the two inner plates (11) are each provided with a plurality of second notches (15) distributed in an annular manner and at equal intervals, and the outer surfaces of the two outer plates (10) are each provided with a plurality of first notches (13) distributed in an annular manner and at equal intervals, and the plurality of first notches (13) are arranged in an arc shape.

3. A sludge discharge device for sewage treatment according to claim 2, characterized in that: A connecting column (12) is slidably connected inside each of the plurality of second notches (15); the connecting column (12) passes through the plurality of first notches (13) and is movably connected to the first notches (13); and the connecting column (12) is fixedly connected to a corresponding connecting block (14).

4. A sludge discharge device for sewage treatment according to claim 1, characterized in that: The outer surfaces of the protruding parts of the two outer plates (10) are each provided with a first connection hole (16), and the outer surfaces of the protruding parts of the two inner plates (11) are each provided with a second connection hole (17).

5. A sludge discharge device for sewage treatment according to claim 1, characterized in that: A fastening block (6) is fixedly connected to the outer surface of the sewage treatment tank (1), a movable groove (5) is provided on the outer surface of the fastening block (6), the two inner plates (11) are located inside the movable groove (5), and the two outer plates (10) are movably connected to the outer surface of the movable groove (5).

6. A sludge discharge device for sewage treatment according to claim 1, characterized in that: A filter screen (8) is fixedly connected to the inner wall of the sewage treatment tank (1), and the filter screen (8) is located above the outer plate (10).

7. A sludge discharge device for sewage treatment according to claim 1, characterized in that: The sludge scraping assembly comprises a driving motor (4), a threaded rod (7) and a scraping block (9); the interior of the sewage treatment tank (1) is rotatably connected to two symmetrically distributed threaded rods (7); the top of the sewage treatment tank (1) is fixedly mounted with two symmetrically distributed driving motors (4); the two driving motors (4) penetrate the sewage treatment tank (1) and are fixedly connected to the ends of the corresponding threaded rods (7); the outer surfaces of the two threaded rods (7) are sleeved with scraping blocks (9); the two scraping blocks (9) are both in an arc-shaped structure; the inner wall of the sewage treatment tank (1) is provided with four mutually symmetrical rectangular grooves; the scraping blocks (9) are slidably connected to the inside of the two corresponding rectangular grooves.

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