A sludge discharge device for sewage treatment

Abstract

The utility model relates to a mud discharge device for sewage treatment, including a water collection sleeve and a conveying pipe, wherein the water collection sleeve is sleeved on the outside of the conveying pipe, one end of the conveying pipe extends through the outside of the water collection sleeve, and there is a gap between the inner wall of the water collection sleeve and the outer wall of the conveying pipe; an auger conveying rod extending along the length direction of the conveying pipe is rotatably installed in the conveying pipe, and the middle part of the conveying pipe near the auger conveying rod is a mud-water separation section. The utility model drives the auger conveying rod to rotate in the conveying pipe through the driving mechanism, and conveys the mud to one side of the mud discharge port. When passing through the mud-water separation section, the water mixed in the mud leaks out through the filter hole into the gap formed between the inner wall of the water collection sleeve and the outer wall of the conveying pipe. The separated sludge continues to be conveyed through the auger conveying rod and is finally discharged from the mud discharge port. Mud and water separation can be performed while the mud is discharged, and no additional mud-water separation device is required to be set up later, thereby reducing the investment in equipment cost.

Description

Technical Field

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

[0002] Wastewater treatment refers to the process of subjecting wastewater containing harmful substances, pollutants and bacteria to a series of physical, chemical and biological treatments to achieve water quality requirements that can be legally discharged or recycled. The sewage treatment process usually includes pretreatment, primary treatment, secondary treatment, tertiary treatment and deep treatment.

[0003] The primary treatment of sewage uses a sedimentation tank or a sedimentation tank combined with flotation equipment to remove suspended solid pollutants in the sewage. The solid pollutants in the sewage will precipitate and settle in the sedimentation tank and settle to the bottom of the sedimentation tank to form sludge. The precipitated sludge is usually discharged to the outside of the sedimentation tank through a sludge discharge pipe.

[0004] In the process of discharging sludge using a sludge discharge device, sewage water will be mixed into the sludge discharge pipe. However, existing sludge discharge devices usually only have the effect of discharging sludge externally, and it is difficult to separate sludge and water at the same time. Subsequently, additional sludge and water separation devices need to be set up, which increases the cost of the treatment process. Utility Model Content

[0005] The utility model aims to provide a mud discharge device for sewage treatment which has mud-water separation effect, and effectively solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0007] A mud discharge device for sewage treatment comprises a water collecting sleeve and a conveying pipe, wherein the water collecting sleeve is sleeved on the outside of the conveying pipe, one end of the conveying pipe extends through the outside of the water collecting sleeve, and there is a gap between the inner wall of the water collecting sleeve and the outer wall of the conveying pipe; an auger conveying rod extending along the length direction of the conveying pipe is rotatably installed in the conveying pipe, the middle part of the conveying pipe near the middle is a mud-water separation section, and the outer surface of the mud-water separation section is evenly distributed with filter holes communicated with the inside of the conveying pipe; a mud inlet pipe is provided at one end of the conveying pipe, and the mud inlet pipe extends through the outside of the water collecting sleeve, and a mud discharge port is provided at the other end of the conveying pipe and the part located outside the water collecting sleeve; a driving mechanism is provided on the end of the conveying pipe located outside the water collecting sleeve, and the driving mechanism is used to drive the auger conveying rod to rotate for conveying; a flushing mechanism is provided at a position corresponding to the mud-water separation section on the water collecting sleeve, and a water supply mechanism for supplying water to the flushing mechanism is provided at one end of the water collecting sleeve.

[0008] It can be seen that the utility model drives the auger conveying rod to rotate in the conveying pipe through the operation of the driving mechanism, and conveys the sludge to one side of the mud discharge port. When passing through the mud-water separation section, the water mixed in the sludge leaks out through the filter hole into the gap formed between the inner wall of the water collection sleeve and the outer wall of the conveying pipe. The separated sludge continues to be conveyed through the auger conveying rod and is finally discharged from the mud discharge port. Mud and water can be separated while the mud is discharged, and there is no need to set up additional mud and water separation devices later, which reduces the investment in equipment costs. The utility model supplies water to the flushing mechanism through the operation of the water supply mechanism, and the flushing mechanism sprays water to the mud-water separation section, which can backwash the filter holes and flush the particulate matter blocked in the filter holes back into the water collection sleeve to avoid clogging of the filter holes and affecting normal mud and water separation. The water collection sleeve is sleeved on the outside of the conveying pipe, which saves space and facilitates the miniaturization of the mud discharge device.

[0009] Furthermore, the driving mechanism includes a driving motor, a main gear and a driven gear; the driving motor is fixed to the outer end of the conveying pipe through a mounting seat, and the main gear is fixed to the output shaft of the driving motor; one end of the auger conveying rod close to the mud discharge port extends through and extends to the outside of the conveying pipe, and the driven gear is fixed to the outer end of the auger conveying rod and meshes with the main gear accordingly.

[0010] By driving the motor, its output shaft drives the main gear to rotate, and the rotating main gear can engage with the driven gear and drive the auger conveying rod to rotate, thereby providing stable drive for the rotation of the auger conveying rod.

[0011] Furthermore, the flushing mechanism includes an outer sleeve and a nozzle; the outer sleeve is arranged on the outside of the water collection sleeve and corresponds to the position of the mud-water separation section, and an annular cavity is arranged inside the outer sleeve; the nozzles are evenly distributed on the inner edge wall of the outer sleeve, one end of the nozzles is connected to the annular cavity, and the other end of the nozzles extends through the inner wall of the water collection sleeve and corresponds to the mud-water separation section.

[0012] Furthermore, the water supply mechanism includes a water pump, a first pipe and a second pipe; the water pump is fixed to one side end of the water collection sleeve through a mounting frame; one end of the first pipe is connected to the output section of the water pump, and the other end of the first pipe is connected to the outer sleeve and communicated with the annular cavity; one end of the second pipe is connected to the input end of the water pump, and the other end of the second pipe is connected to the water outlet of the water tank.

[0013] Through the operation of the water pump, the water in the water storage tank is pumped into the annular cavity through the second pipe and the first pipe in turn, and the water is diverted to the nozzles through the annular cavity, and finally sprayed out by the nozzles at the mud-water separation section. The sprayed water can backwash the particles blocked in the filter holes into the conveying pipe, thereby achieving the backwashing effect on the filter holes and preventing the particles from blocking the filter holes and affecting the normal mud-water separation.

[0014] Furthermore, a water discharge pipe communicating with the interior of the water collection sleeve is provided on one side of the water collection sleeve away from the mud discharge port; the inner diameter of the water collection sleeve increases as it approaches the water discharge pipe.

[0015] The water discharge pipe facilitates the discharge of water accumulated between the inner wall of the water collection sleeve and the outer wall of the conveying pipe. At the same time, since the inner diameter of the water collection sleeve increases as it approaches the water discharge pipe, a slope is formed to transition to the water discharge pipe, which facilitates the water in the water collection sleeve to converge and be discharged to one side of the water discharge pipe.

[0016] Furthermore, the inner edge wall of the outer sleeve is fixedly connected to the outer wall of the water collection sleeve through a bracket.

[0017] The outer sleeve is fixed to the outside of the water collection sleeve by using a bracket to ensure that the outer sleeve is sufficiently firm.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0019] 1. The utility model drives the auger conveying rod to rotate in the conveying pipe through the operation of the driving mechanism, and conveys the sludge to one side of the sludge discharge port. When passing through the mud-water separation section, the water mixed in the sludge leaks out through the filter holes into the gap formed between the inner wall of the water collection sleeve and the outer wall of the conveying pipe. The separated sludge continues to be conveyed through the auger conveying rod and is finally discharged from the sludge discharge port. Mud and water separation can be performed while discharging the sludge, and there is no need to set up additional mud-water separation devices later, thereby reducing the investment in equipment costs.

[0020] 2. The utility model works by means of a water pump, and the water in the water storage tank is pumped into the annular cavity through the second pipe and the first pipe in turn, and the water is respectively diverted to the nozzles through the annular cavity, and finally the nozzles are aimed at the mud-water separation section to spray out, so as to backwash the filter holes, and flush the particles blocked in the filter holes back into the water collection sleeve, so as to avoid the filter holes being blocked and affecting the normal mud-water separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the three-dimensional schematic diagrams of the overall structure of the utility model;

[0022] Figure 2 This is the second three-dimensional schematic diagram of the overall structure of the utility model;

[0023] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model;

[0024] Figure 4 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0026] In the figure: 1. water collection sleeve; 101. water discharge pipe; 2. conveying pipeline; 201. mud inlet pipe; 202. mud discharge port; 21. mud-water separation section; 22. filter hole; 3. auger conveying rod; 4. driving mechanism; 41. driving motor; 411. mounting seat; 42. main gear; 43. driven gear; 5. flushing mechanism; 501. bracket; 51. outer sleeve; 511. annular cavity; 52. nozzle; 6. water supply mechanism; 61. water pump; 611. mounting frame; 62. first pipeline; 63. second pipeline. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 5 The utility model provides a mud discharge device for sewage treatment, comprising a water collection sleeve 1 and a conveying pipe 2. The water collection sleeve 1 is sleeved on the outside of the conveying pipe 2, and one end of the conveying pipe 2 extends through the outside of the water collection sleeve 1. There is a gap between the inner wall of the water collection sleeve 1 and the outer wall of the conveying pipe 2; an auger conveying rod 3 extending along the length direction of the conveying pipe 2 is rotatably installed in the conveying pipe 2, and the middle part of the conveying pipe 2 is a mud-water separation section 21, and the outer surface of the mud-water separation section 21 is uniformly distributed with filter holes 22 that communicate with the inside of the conveying pipe 2; one end of the conveying pipe 2 is provided with a mud inlet pipe 2 01, the mud inlet pipe 201 can be connected with the sewage outlet (not shown in the figure) of the sedimentation tank (not shown in the figure), the mud inlet pipe 201 extends through and extends to the outside of the water body collecting sleeve 1, and the other end of the conveying pipe 2 and the part located outside the water body collecting sleeve 1 are provided with a mud outlet 202; the conveying pipe 2 is provided with a driving mechanism 4 on the end portion of the water body collecting sleeve 1, and the driving mechanism 4 is used to drive the auger conveying rod 3 to rotate for conveying; a flushing mechanism 5 is provided on the water body collecting sleeve 1 at a position corresponding to the mud-water separation section 21, and a water supply mechanism 6 for supplying water to the flushing mechanism 5 is provided at one end of the water body collecting sleeve 1.

[0029] The mud inlet pipe 201 is connected to the sewage outlet of the sedimentation tank. When the sedimentation tank is discharged, the sludge is mixed with water and discharged into the mud inlet pipe 201 from the sewage outlet of the sedimentation tank, and flows into the conveying pipe 2 through the mud inlet pipe 201. The driving mechanism 4 drives the auger conveying rod 3 to rotate in the conveying pipe 2, so that the sludge can be conveyed to the side of the mud discharge port 202. When passing through the mud-water separation section 21, the water mixed in the sludge leaks through the filter hole 22 to the gap formed between the inner wall of the water collection sleeve 1 and the outer wall of the conveying pipe 2, so as to realize mud-water separation. The water is collected by the water collection sleeve 1, and the separated sludge is continuously conveyed through the auger conveying rod 3, and finally discharged from the mud discharge port 202, thereby realizing the mud discharge work. Due to long-term mud discharge work, some particulate dirt can easily drill into the filter hole 22 and cause the filter hole 22 to be blocked, which will affect the mud-water separation effect. The water supply mechanism 6 supplies water to the flushing mechanism 5, and the flushing mechanism 5 sprays water to the mud-water separation section 21 to backwash the filter hole 22. The particulate matter blocked in the filter hole 22 can be flushed back into the water collection sleeve 1 to avoid the filter hole 22 being blocked by the particulate matter.

[0030] Specifically, the driving mechanism 4 includes a driving motor 41, a main gear 42 and a driven gear 43; the driving motor 41 is fixed to the outer end of the conveying pipe 2 through a mounting seat 411, and the main gear 42 is fixed to the output shaft of the driving motor 41; one end of the auger conveying rod 3 close to the mud discharge port 202 extends through the outer side of the conveying pipe 2, and the driven gear 43 is fixed to the outer end of the auger conveying rod 3 and meshes with the main gear 42. When the driving motor 41 works, its output shaft drives the main gear 42 to rotate, and the rotating main gear 42 can mesh with the driven gear 43 and drive the auger conveying rod 3 to rotate, thereby providing a stable drive for the rotation of the auger conveying rod 3.

[0031] Specifically, the flushing mechanism 5 includes an outer sleeve 51 and a nozzle 52; the outer sleeve 51 is sleeved on the outside of the water collection sleeve 1 and corresponds to the position of the mud-water separation section 21, and an annular cavity 511 is provided in the outer sleeve 51; the nozzles 52 are evenly distributed on the inner edge wall of the outer sleeve 51, one end of the nozzles 52 is communicated with the annular cavity 511, and the other end of the nozzles 52 extends through the inner wall of the water collection sleeve 1 and corresponds to the mud-water separation section 21.

[0032] Specifically, the water supply mechanism 6 includes a water pump 61, a first pipe 62 and a second pipe 63; the water pump 61 is fixed to one side end of the water collection sleeve 1 through a mounting frame 611; one end of the first pipe 62 is connected to the output section of the water pump 61, and the other end of the first pipe 62 is connected to the outer sleeve 51 and communicates with the annular cavity 511; one end of the second pipe 63 is connected to the input end of the water pump 61, and the other end of the second pipe 63 is connected to the water outlet (not shown in the figure) of the water tank (not shown in the figure). Through the operation of the water pump 61, the water in the water storage tank is pumped into the annular cavity 511 through the second pipe 63 and the first pipe 62 in turn, and the water is diverted to the nozzles 52 through the annular cavity 511, and finally sprayed out by the nozzles 52 at the mud-water separation section 21. The sprayed water can backwash the particles blocked in the filter holes 22 into the conveying pipe 2, thereby achieving a backwashing effect on the filter holes 22, and preventing the particles from blocking the filter holes 22 and affecting the normal mud-water separation.

[0033] Specifically, a water discharge pipe 101 communicating with the inside of the water collection sleeve 1 is provided on one side of the water collection sleeve 1 away from the mud discharge port 202; the inner diameter of the water collection sleeve 1 increases as it approaches the water discharge pipe 101. The water accumulated between the inner wall of the water collection sleeve 1 and the outer wall of the conveying pipe 2 can be discharged through the water discharge pipe 101. At the same time, since the inner diameter of the water collection sleeve 1 increases as it approaches the water discharge pipe 101, a slope is formed to transition to the water discharge pipe 101, so that the water in the water collection sleeve 1 can be easily converged and discharged to the side of the water discharge pipe 101.

[0034] Specifically, the inner edge wall of the outer sleeve 51 is fixedly connected to the outer wall of the water collection sleeve 1 through the bracket 501. The outer sleeve 51 is fixed to the outside of the water collection sleeve 1 by the bracket 501 to ensure that the outer sleeve 51 is sufficiently firm.

[0035] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A sludge discharge device for sewage treatment, comprising a water collection sleeve (1) and a conveying pipeline (2), characterized in that: The water collection sleeve (1) is sleeved on the outside of the delivery pipe (2), one end of the delivery pipe (2) extends through the outside of the water collection sleeve (1), and there is a gap between the inner wall of the water collection sleeve (1) and the outer wall of the delivery pipe (2); An auger conveying rod (3) extending along the length direction of the conveying pipeline (2) is rotatably installed in the conveying pipeline (2); a mud-water separation section (21) is located near the middle of the conveying pipeline (2); and filter holes (22) are evenly distributed on the outer surface of the mud-water separation section (21) that communicate with the interior of the conveying pipeline (2); A mud inlet pipe (201) is provided at one end of the conveying pipe (2), and the mud inlet pipe (201) extends through and to the outside of the water body collecting sleeve (1); a mud discharge port (202) is provided at the other end of the conveying pipe (2) and at a portion located outside the water body collecting sleeve (1); A driving mechanism (4) is provided on the end of the conveying pipe (2) located outside the water collection sleeve (1), and the driving mechanism (4) is used to drive the auger conveying rod (3) to rotate to perform conveying work; A flushing mechanism (5) is provided on the water collection sleeve (1) at a position corresponding to the mud-water separation section (21), and a water supply mechanism (6) for supplying water to the flushing mechanism (5) is provided at one end of the water collection sleeve (1).

2. A sludge discharge device for sewage treatment according to claim 1, characterized in that: The driving mechanism (4) comprises a driving motor (41), a main gear (42) and a driven gear (43); The drive motor (41) is fixed to the outer end of the conveying pipe (2) via a mounting seat (411), and the main gear (42) is fixed to the output shaft of the drive motor (41); One end of the auger conveying rod (3) close to the mud discharge port (202) extends through the outside of the conveying pipe (2), and the driven gear (43) is fixed to the outer end of the auger conveying rod (3) and meshes with the main gear (42) accordingly.

3. A sludge discharge device for sewage treatment according to claim 1, characterized in that: The flushing mechanism (5) comprises an outer sleeve (51) and a spray head (52); The outer sleeve (51) is sleeved on the outside of the water collection sleeve (1) and at a position corresponding to the mud-water separation section (21), and an annular cavity (511) is provided in the outer sleeve (51); The nozzles (52) are evenly distributed on the inner edge wall of the outer sleeve (51), one end of each nozzle (52) is in communication with the annular cavity (511), and the other end of each nozzle (52) extends through the inner wall of the water collection sleeve (1) and is aligned with the mud-water separation section (21).

4. A sludge discharge device for sewage treatment according to claim 3, characterized in that: The water supply mechanism (6) comprises a water pump (61), a first pipeline (62) and a second pipeline (63); The water pump (61) is fixed to one end portion of the water collection sleeve (1) via a mounting frame (611); One end of the first pipe (62) is connected to the output section of the water pump (61), and the other end of the first pipe (62) is connected to the outer sleeve (51) and communicates with the annular cavity (511); One end of the second pipe (63) is in communication with the input end of the water pump (61), and the other end of the second pipe (63) is in communication with the water outlet of the water storage tank.

5. A sludge discharge device for sewage treatment according to claim 1, characterized in that: A water discharge pipe (101) communicating with the interior of the water collection sleeve (1) is provided on a side of the water collection sleeve (1) away from the mud discharge port (202); The inner diameter of the water collection sleeve (1) increases as it gets closer to the water discharge pipe (101).

6. A sludge discharge device for sewage treatment according to claim 3, characterized in that: The inner edge wall of the outer sleeve (51) is fixedly connected to the outer wall of the water collection sleeve (1) via a bracket (501).

Images