Sludge discharge device for sewage treatment

Abstract

The utility model discloses a sludge discharge device for sewage treatment, which comprises a filter vat, the top of the filter vat is communicated with a water inlet, the outer wall of the filter vat is fixedly connected with a servo motor, a sludge discharge device is arranged in the filter vat, and the sludge discharge device comprises a communicating pipe, an auger helical blade, a filter screen, a sludge discharge port and a shell, one end of the communicating pipe is communicated with the bottom of the water inlet, and the other end of the communicating pipe is communicated with a shell. The utility model relates to the technical field of sludge discharge for sewage treatment, through the cooperation among a servo motor, an auger spiral blade and a sludge discharge port, when the sewage needs to be subjected to sludge discharge treatment, the sewage is firstly poured into a filter barrel from a water inlet and flows into a shell through a communicating pipe, the servo motor is started, and the sewage is discharged from the filter barrel through the communicating pipe; the servo motor drives the auger spiral blade to rotate, and sludge in the sewage can be transmitted to the position of the sludge discharge port through rotation of the auger spiral blade and flows into the collection box from the sludge discharge port.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge discharge for sewage treatment, in particular to a sludge discharge device for sewage treatment. Background Technique

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharging into a certain water body or reusing it. Sewage treatment is widely applied in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering, and is also increasingly entering the daily lives of ordinary people.

[0003] The existing sewage treatment sludge discharge device usually conducts long-term sedimentation treatment through a sedimentation tank. The sludge settles to the bottom of the sedimentation tank, and the sludge is scraped off by means of a mechanical scraper.

[0004] However, the existing sewage treatment sludge discharge device requires long-term sedimentation treatment, and the sludge falls to the bottom of the sedimentation tank. The sludge cannot be completely scraped off by the scraper, which reduces the working efficiency of sewage treatment during the waiting for sedimentation. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a sludge discharge device for sewage treatment, which solves the problems that the existing sewage treatment sludge discharge device requires long-term sedimentation treatment, and the sludge falls to the bottom of the sedimentation tank. The sludge cannot be completely scraped off by the scraper, which reduces the working efficiency of sewage treatment during the waiting for sedimentation.

[0006] To achieve the above purpose, the utility model is realized through the following technical solutions: A sludge discharge device for sewage treatment includes a filter barrel. The top of the filter barrel is communicated with a water inlet. A servo motor is fixedly connected to the outer wall of the filter barrel. A sludge discharge device is arranged inside the filter barrel. The sludge discharge device includes a communicating pipe, a screw conveyor blade, a filter screen, a sludge discharge port, and a housing. One end of the communicating pipe is communicated with the bottom of the water inlet, and the other end of the communicating pipe is communicated with a housing. One side of the housing is fixedly connected to the inner wall of the filter barrel, and the other side of the housing penetrates through the outer wall of the filter barrel. The inner wall of the housing is rotationally connected with a screw conveyor blade through a sealed bearing. One end of the screw conveyor blade penetrates through the outer wall of the filter barrel through a sealed bearing and is fixedly connected to the output end of the servo motor. The bottom of the housing is fixedly connected with a filter screen. A sludge discharge port is arranged on one side of the housing located outside the filter barrel. A baffle inserted into the inner wall of the housing is arranged above the filter screen. The other side of the baffle penetrates through the side of the filter barrel. A box body is fixedly connected to the outer wall of the filter barrel. A submersible pump is fixedly connected to the bottom of the inner wall of the box body. The input end of the submersible pump is attached to the top of the baffle.

[0007] Preferably, an external connecting pipe is connected to the top of the housing, the other end of the external connecting pipe penetrates through the side of the filter barrel, one end of the external connecting pipe located inside the housing is connected to a water pipe, a plurality of nozzles are connected to the outer wall of the water pipe, a baffle inserted into the inner wall of the housing is arranged above the filter net, the other side of the baffle penetrates through the side of the filter barrel, a box body is fixedly connected to the outer wall of the filter barrel, a submersible sewage pump is fixedly connected to the bottom of the inner wall of the box body, and the input end of the submersible sewage pump penetrates through the side of the filter barrel and is attached to the top of the baffle.

[0008] Preferably, a collection box is fixedly connected to the bottom of the sludge discharge port, one side of the collection box is fixedly connected to the outer wall of the filter barrel, a cover body is installed on the front of the collection box through a pin shaft, a sensor is installed on the bottom of the inner wall of the collection box, a protective shell is fixedly connected to the top of the sensor, and a cylinder is fixedly connected to the bottom of the inner wall of the protective shell. The output end of the cylinder penetrates through the top of the protective shell and is fixedly connected to a dredging rod.

[0009] Preferably, inclined plates are fixedly connected to both sides of the inner wall of the filter barrel, and a second-layer filter plate is fixedly connected between the two inclined plates.

[0010] Preferably, a water outlet is fixedly connected to the bottom of the second-layer filter plate, and the bottom of the water outlet penetrates through the bottom of the filter barrel.

[0011] Beneficial effects

[0012] The utility model provides a sludge discharge device for sewage treatment, which has the following beneficial effects: Through the cooperation between the servo motor, the auger spiral blade and the sludge discharge port, when sludge discharge treatment is required for sewage, first pour the sewage into the inside of the filter barrel from the water inlet, and the sewage flows into the inside of the housing through the connecting pipe. Start the servo motor, and the servo motor drives the auger spiral blade to rotate. The sludge in the sewage will be conducted to the position of the sludge discharge port through the rotation of the auger spiral blade, and flow into the inside of the collection box from the sludge discharge port. The water from which the sludge has been removed will pass through the filter net for filtration until it flows out from the water outlet.

[0013] Through the cooperation between the sensor, the cylinder and the dredging rod, since the sludge has strong viscosity, if too much sludge is discharged from the sludge discharge port, it will cause the sludge discharge port to be blocked. When the sensor does not sense the falling of a heavy object, the cylinder starts, drives the dredging rod at the top, and pushes the dredging rod into the inside of the sludge discharge port, so as to dredge the sludge blocked at the sludge discharge port and prevent all the sludge from accumulating inside the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is an external view schematic diagram of the utility model;

[0016] Figure 3 is Figure 1 a schematic structural diagram of the inductor, cylinder and dredging rod;

[0017] Figure 4 is Figure 1 a schematic structural diagram of the auger spiral blade, nozzle and filter plate;

[0018] Figure 5 is Figure 1 a schematic structural diagram of the box body, submersible pump and baffle.

[0019] In the figure: 1. Filter barrel; 2. Connecting pipe; 3. Water inlet; 4. Outer connecting pipe; 5. Servo motor; 6. Auger spiral blade; 7. Filter net; 8. Inclined plate; 9. Second layer filter plate; 10. Water outlet; 11. Inductor; 12. Collection box; 13. Mud discharge port; 14. Nozzle; 15. Water pipe; 16. Outer shell; 17. Cover body; 18. Cylinder; 19. Protection shell; 20. Dredging rod; 21. Baffle; 22. Submersible pump; 23. Box body. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Existing sewage treatment sludge discharge devices require long-term sedimentation treatment, and the sludge falls to the bottom of the sedimentation tank, and the sludge cannot be completely scraped off by the scraper, which reduces the working efficiency of sewage treatment during the waiting for sedimentation.

[0022] In view of this, the present invention provides a sludge discharge device for sewage treatment. Through the cooperation between the servo motor, the auger spiral blade and the mud discharge port, when sludge discharge treatment is required for sewage, first pour the sewage into the interior of the filter barrel from the water inlet, and the sewage flows into the interior of the outer shell through the connecting pipe. Start the servo motor, and the servo motor drives the auger spiral blade to rotate. The sludge in the sewage will be conducted to the position of the mud discharge port through the rotation of the auger spiral blade, and flows into the interior of the collection box from the mud discharge port. The water from which the sludge has been removed will be filtered through the filter net until it flows out from the water outlet.

[0023] Those skilled in the art shall connect the components in this case in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0024] Example 1: From Figure 1-4 it can be seen that a sludge discharging device for sewage treatment includes a filtering barrel 1. A water inlet 3 is connected to the top of the filtering barrel 1. A servo motor 5 is fixedly connected to the outer wall of the filtering barrel 1. A sludge discharging device is arranged inside the filtering barrel 1. The sludge discharging device includes a connecting pipe 2, a screw conveyor blade 6, a filter screen 7, a sludge discharging port 13 and a housing 16. One end of the connecting pipe 2 is connected to the bottom of the water inlet 3, and the other end of the connecting pipe 2 is connected to a housing 16. Sewage flows into the interior of the housing 16 through the connecting pipe 2. One side of the housing 16 is fixedly connected to the inner wall of the filtering barrel 1, and the other side of the housing 16 penetrates through the outer wall of the filtering barrel 1. The inner wall of the housing 16 is rotatably connected to a screw conveyor blade 6 through a sealing bearing. The screw conveyor blade 6 can conduct the sludge in the sewage until it flows out from the sludge discharging port 13. One end of the screw conveyor blade 6 penetrates through the outer wall of the filtering barrel 1 through a sealing bearing and is fixedly connected to the output end of the servo motor 5. A filter screen 7 is fixedly connected to the bottom of the housing 16. A sludge discharging port 13 is provided on one side of the housing 16 located outside the filtering barrel 1;

[0025] In the specific implementation process, it is particularly worth noting that when sludge discharging treatment of sewage is required, first pour the sewage into the interior of the filtering barrel 1 from the water inlet 3. The sewage flows to the interior of the housing 16 through the connecting pipe 2. Start the servo motor 5. The servo motor 5 drives the screw conveyor blade 6 to rotate. The sludge in the sewage will be conducted to the position of the sludge discharging port 13 through the rotation of the screw conveyor blade 6 and flow into the interior of the collection box 12. The water from which the sludge has been removed will be filtered through the filter screen 7 until it flows out from the water outlet 10;

[0026] Furthermore, an external connecting pipe 4 is connected to the top of the housing 16. The external connecting pipe 4 can be connected to a water supply device. The other end of the external connecting pipe 4 penetrates through the side of the filtering barrel 1. One end of the external connecting pipe 4 located inside the housing 16 is connected to a water pipe 15. A plurality of spray heads 14 are connected to the outer wall of the water pipe 15. A baffle 21 inserted into the inner wall of the housing 16 is arranged above the filter screen 7. The other side of the baffle 21 penetrates through the side of the filtering barrel 1. At the position where the baffle 21 penetrates through the side of the filtering barrel 1, a sealing gasket is arranged on the inner wall of the filtering barrel 1 to ensure that there is no water leakage when the baffle 21 is moved. A box body 23 is fixedly connected to the outer wall of the filtering barrel 1. A submersible pump 22 is fixedly connected to the bottom of the inner wall of the box body 23. The input end of the submersible pump 22 penetrates through the side of the filtering barrel 1 and is attached to the top of the baffle 21 to wash the screw conveyor blade 6 through the plurality of spray heads 14;

[0027] In the specific implementation process, it is particularly worth noting that the auger spiral blade 6 performs sludge discharge treatment on sewage for a long time, and the sludge has strong viscosity, resulting in the inability of the auger spiral blade 6 to work. The water supply device is connected through the external connecting pipe 4, and then the auger spiral blade 6 is flushed by multiple nozzles 14 to wash away the sludge attached to the outer wall of the auger spiral blade 6. The washed sludge will be blocked by the baffle 21 to prevent the sludge from falling onto the filter screen 7. Then, the submersible pump 22 is used to discharge the cleaned sewage. When performing sewage sludge discharge operation, the baffle 21 is first pulled out from the inner wall of the housing 16 to prevent the sewage from not being discharged from the filter screen 7;

[0028] Further, a collection box 12 is fixedly connected to the bottom of the sludge discharge port 13. One side of the collection box 12 is fixedly connected to the outer wall of the filter barrel 1. A cover body 17 is installed on the front of the collection box 12 through a pin shaft. An inductor 11 is installed at the bottom of the inner wall of the collection box 12. The top of the inductor 11 is fixedly connected to a protective shell 19. A cylinder 18 is fixedly connected to the bottom of the inner wall of the protective shell 19. The output end of the cylinder 18 penetrates the top of the protective shell 19 and is fixedly connected to a dredging rod 20. The inductor 11 can sense whether there is a heavy object falling on the top. If no heavy object is sensed falling for a long time, the cylinder 18 is automatically started. The model of the inductor 11 is not specifically described here;

[0029] In the specific implementation process, it is particularly worth noting that due to the strong viscosity of the sludge, if too much sludge is discharged from the sludge discharge port 13, it will cause the sludge discharge port 13 to be blocked. When the inductor 11 does not sense a heavy object falling, the cylinder 18 is started, driving the dredging rod 20 at the top, and pushing the dredging rod 20 into the sludge discharge port 13 to dredge the sludge blocked at the sludge discharge port 13 to prevent all the sludge from accumulating inside the housing 16;

[0030] Specifically, when using this sludge discharge device for sewage treatment, when sludge discharge treatment of sewage is required, first pour the sewage into the interior of the filter barrel 1 from the water inlet 3. The sewage flows into the interior of the housing 16 through the connecting pipe 2. Start the servo motor 5, and the servo motor 5 drives the auger spiral blade 6 to rotate. The sludge in the sewage will be conducted to the position of the sludge discharge port 13 through the rotation of the auger spiral blade 6 and flow into the interior of the collection box 12 from the sludge discharge port 13. The water from which the sludge has been removed will be filtered through the filter screen 7 until it flows out from the water outlet 10. The auger spiral blade 6 conducts sludge discharge treatment on the sewage for a long time, and the sludge has strong viscosity, resulting in the inability of the auger spiral blade 6 to work. Connect the water supply device through the external connecting pipe 4, and then rinse the auger spiral blade 6 with multiple spray heads 14 to wash away the sludge attached to the outer wall of the auger spiral blade 6. The washed-away sludge will be blocked by the baffle 21 to prevent the sludge from falling onto the filter screen 7. Then, the sewage after cleaning is discharged by the submersible pump 22. When performing sewage sludge discharge operation, first pull out the baffle 21 from the inner wall of the housing 16 to prevent the sewage from not being discharged from the filter screen 7. Due to the strong viscosity of the sludge, if too much sludge is discharged from the sludge discharge port 13, it will cause the sludge discharge port 13 to be blocked. When the sensor 11 does not sense the fall of a heavy object, the cylinder 18 is started, driving the dredging rod 20 at the top and pushing the dredging rod 20 into the interior of the sludge discharge port 13, so as to dredge the sludge blocked at the sludge discharge port 13 and prevent all the sludge from accumulating in the interior of the housing 16.

[0031] Embodiment 2: As Figure 1-4 can be seen, inclined plates 8 are fixedly connected to both sides of the inner wall of the filter barrel 1, and a second-layer filter plate 9 is fixedly connected between the two inclined plates 8;

[0032] In the specific implementation process, it is particularly worth noting that the sewage filtered by the filter screen 7 will pass along the inclined plate 8 through the second-layer filter plate 9 to achieve a better sludge discharge effect;

[0033] Furthermore, a water outlet 10 is fixedly connected to the bottom of the second-layer filter plate 9, and the bottom of the water outlet 10 penetrates through the bottom of the filter barrel 1;

[0034] In the specific implementation process, it is particularly worth noting that the sewage after sludge discharge treatment and two-stage filtration is finally discharged through the water outlet 10;

[0035] Specifically, on the basis of the above-mentioned Embodiment 1, the sewage filtered by the filter screen 7 will pass along the inclined plate 8 through the second-layer filter plate 9 to achieve a better sludge discharge effect, and the sewage after sludge discharge treatment and two-stage filtration is finally discharged through the water outlet 10.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0037] In the present utility model, unless otherwise clearly specified and defined, terms such as "mount", "set", "connect", "fix", "swivel connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sludge discharge device for sewage treatment, comprising a filter barrel (1), characterized in that: The top of the filter barrel (1) is connected to a water inlet (3), the outer wall of the filter barrel (1) is fixedly connected to a servo motor (5), and a mud discharge device is provided inside the filter barrel (1); The mud discharge device comprises a connecting pipe (2), an auger spiral blade (6), a filter screen (7), a mud discharge port (13) and a housing (16); One end of the connecting pipe (2) is connected to the bottom of the water inlet (3), and the other end of the connecting pipe (2) is connected to a housing (16). One side of the housing (16) is fixedly connected to the inner wall of the filter barrel (1), and the other side of the housing (16) penetrates the outer wall of the filter barrel (1). The inner wall of the housing (16) is rotatably connected to an auger spiral blade (6) via a sealed bearing. One end of the auger spiral blade (6) penetrates the outer wall of the filter barrel (1) via a sealed bearing and is fixedly connected to the output end of the servo motor (5). The bottom of the housing (16) is fixedly connected to a filter screen (7), and a mud discharge port (13) is provided on one side of the housing (16) located outside the filter barrel (1).

2. A sludge discharge device for sewage treatment according to claim 1, characterized in that: The top of the shell (16) is connected to an external pipe (4), the other end of the external pipe (4) passes through the side of the filter barrel (1), one end of the external pipe (4) located inside the shell (16) is connected to a water pipe (15), the outer wall of the water pipe (15) is connected to a plurality of nozzles (14), a baffle (21) plugged into the inner wall of the shell (16) is arranged above the filter screen (7), the other side of the baffle (21) passes through the side of the filter barrel (1), the outer wall of the filter barrel (1) is fixedly connected to a box body (23), the bottom of the inner wall of the box body (23) is fixedly connected to a submersible sewage pump (22), the input end of the submersible sewage pump (22) passes through the side of the filter barrel (1) and is attached to the top of the baffle (21).

3. A sludge discharge device for sewage treatment according to claim 1, characterized in that: The bottom of the mud discharge port (13) is fixedly connected to a collecting box (12), one side of the collecting box (12) is fixedly connected to the outer wall of the filter barrel (1), a cover body (17) is installed on the front of the collecting box (12) via a pin shaft, a sensor (11) is installed on the bottom of the inner wall of the collecting box (12), the top of the sensor (11) is fixedly connected to a protective shell (19), the bottom of the inner wall of the protective shell (19) is fixedly connected to a cylinder (18), the output end of the cylinder (18) passes through the top of the protective shell (19) and is fixedly connected to a dredging rod (20).

4. A sludge discharge device for sewage treatment according to claim 1, characterized in that: Inclined plates (8) are fixedly connected to both sides of the inner wall of the filter barrel (1), and a second layer of filter plates (9) is fixedly connected between the two inclined plates (8).

5. A sludge discharge device for sewage treatment according to claim 4, characterized in that: The bottom of the second filter plate (9) is fixedly connected to a water outlet (10), and the bottom of the water outlet (10) passes through the bottom of the filter barrel (1).

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