CN113559565A - Sectional backflushing anti-blocking sand lifting and discharging device and sand lifting and discharging process thereof - Google Patents
Sectional backflushing anti-blocking sand lifting and discharging device and sand lifting and discharging process thereof Download PDFInfo
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- CN113559565A CN113559565A CN202010346879.0A CN202010346879A CN113559565A CN 113559565 A CN113559565 A CN 113559565A CN 202010346879 A CN202010346879 A CN 202010346879A CN 113559565 A CN113559565 A CN 113559565A
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- backflushing
- lifting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
- B01D21/2472—Means for fluidising the sediments, e.g. by jets or mechanical agitators
Abstract
The invention discloses a segmented backflushing anti-clogging sand lifting and discharging device, which belongs to the technical field of sewage treatment and comprises a sand setting tank, wherein a sand collecting groove is formed in the sand setting tank, a sand lifting pump well is arranged on one side of the sand setting tank, a dry type sand pump is connected above the sand lifting pump well through a support, a sand lifting pipe is arranged at a sand inlet of the dry type sand pump, a sand discharging pipe is arranged at a sand outlet of the dry type sand pump, the sand lifting pipe and the dry type sand pump as well as the dry type sand pump and the sand discharging pipe are connected through gate valves, and one end, far away from the dry type sand pump, of the sand lifting pipe extends to the inside of the sand collecting groove and is provided with a sand sucking pipe orifice; the invention abandons the diving sand discharging process, omits the sand scraping and sucking machine and other equipment, upgrades the bottom pipe sand discharging process, sets back flushing points on the sand lifting pipe and the sand discharging pipe in a shunt and subsection multi-point way, simultaneously, each section of back flushing water inlet is independently controlled by a valve, and uses a dry type sand pump, thus leading the equipment maintenance and the pipeline cleaning to be more convenient and easier.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a segmented backflushing anti-clogging sand lifting and discharging device and a sand lifting and discharging process thereof.
Background
The sand lifting and discharging is one of the necessary processes of sewage treatment plants, the traditional sand discharging processes have the problems of easy pipeline blockage, difficult cleaning and the like, and the invention provides a solution for preventing the blockage and the cleaning of a sand lifting and discharging pipe.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a segmented backflushing anti-clogging sand lifting and discharging device and a sand lifting and discharging process thereof, which have the characteristics that backflushing points are arranged on a sand lifting pipe and a sand discharging pipe in a shunting and segmented multipoint mode, a special dredging pipe is additionally arranged, and a dry type sediment pump is used, so that the equipment maintenance and the pipeline cleaning are simple and easy to operate.
The invention also aims to provide a sand lifting and discharging process of the segmented backflushing anti-clogging sand lifting and discharging device.
In order to achieve the purpose, the invention provides the following technical scheme: a segmented backflushing anti-clogging sand lifting and discharging device comprises a grit chamber, wherein a sand collecting groove is formed in the grit chamber, a sand lifting pump well is arranged on one side of the grit chamber, a dry type sand pump is connected above the sand lifting pump well through a support, a sand lifting pipe is arranged at a sand inlet of the dry type sand pump, a sand discharging pipe is arranged at a sand outlet of the dry type sand pump, the sand lifting pipe and the dry type sand pump as well as the dry type sand pump and the sand discharging pipe are connected through gate valves, one end, far away from the dry type sand pump, of the sand lifting pipe extends to the inside of the sand collecting groove and is provided with a sand sucking pipe orifice, and backflushing structures are arranged on the sand lifting pipe and the sand discharging pipe and comprise a sand discharging pipe backflushing main water pipe, a backflushing water distribution valve, a sand lifting pipe flat pipe section backflushing pipe, a sand lifting pipe section main water pipe and a sand lifting pipe section backflushing branch water pipe, the back flushing main water pipe is connected with a reclaimed water pipe network, the back flushing main water pipe is respectively connected with a sand lifting pipe flat pipe section back flushing pipe, a sand lifting pipe vertical pipe section back flushing main water pipe and a sand discharging pipe back flushing pipe, the sand lifting pipe flat pipe section back flushing pipe is positioned on one side of the sand lifting pipe vertical pipe section back flushing main water pipe, the sand discharging pipe back flushing pipe is positioned on the other side of the sand lifting pipe vertical pipe section back flushing main water pipe, one side of the sand lifting pipe vertical pipe section back flushing main water pipe, which is far away from the sand lifting pipe flat pipe section back flushing pipe, is connected with a plurality of sand lifting pipe vertical pipe section back flushing branch water pipes, and back flushing water distribution valves are respectively installed on the sand discharging pipe back flushing pipe, the sand lifting pipe flat pipe section back flushing pipe and the sand lifting pipe section back flushing main water pipe.
Further in the invention, the sand suction pipe orifice is placed at the position 1/3 in the longitudinal direction of the bottom of the sand catch basin.
In the invention, the sand suction pipe mouth is of a semi-horn mouth structure with a notch at the upper part and a semi-horn mouth structure at the lower part, and the pipe end of the sand suction pipe mouth is subjected to necking treatment.
In the invention, a dredging hole is arranged above the sand lifting pipe.
Further, the dredging hole is 200-300 mm higher than the working liquid level of the grit chamber.
In the invention, the backflushing main water pipe further comprises an inner pipeline, an outer pipeline and reinforcing ribs, the outer pipeline is arranged outside the inner pipeline, and the inner pipeline and the outer pipeline are fixedly connected through the plurality of reinforcing ribs.
In a further aspect of the present invention, a plurality of buffer blocks are fixed inside the inner pipe.
Further in the invention, rubber particles are filled between the inner pipe and the outer pipe.
In the invention, the structures of the sand discharge pipe back flushing pipe, the sand lifting pipe flat pipe section back flushing pipe, the sand lifting pipe vertical pipe section back flushing main water pipe and the sand lifting pipe vertical pipe section back flushing branch water pipe are the same as the structure of the back flushing main water pipe.
Further, the sand lifting and discharging process of the segmented backflushing anti-clogging sand lifting and discharging device comprises the following steps:
(1) flushing a flat pipe section of the sand lifting pipe: closing a gate valve of a sand inlet of the dry type sand pump, opening a backflushing water distribution valve on a horizontal pipe section backflushing water pipe of the sand lifting pipe, enabling reclaimed water in a reclaimed water pipe network to enter the horizontal pipe section backflushing water pipe of the sand lifting pipe through a backflushing main water pipe, enabling the reclaimed water to enter the horizontal pipe section of the sand lifting pipe through the horizontal pipe section backflushing water pipe of the sand lifting pipe, flushing the horizontal pipe section of the sand lifting pipe, and completing the flushing to close the backflushing water distribution valve on the horizontal pipe section backflushing water pipe of the sand lifting pipe;
(2) washing a vertical pipe section of the sand lifting pipe: closing a gate valve of a sand inlet of a dry type sand pump, opening a backflushing water distribution valve on a vertical pipe section backflushing main water pipe of a sand lifting pipe, enabling reclaimed water in a reclaimed water pipe network to enter a vertical pipe section backflushing main water pipe of the sand lifting pipe through the backflushing main water pipe, enabling the reclaimed water to enter a plurality of vertical pipe section backflushing branch water pipes of the sand lifting pipe through the vertical pipe section backflushing main water pipe of the sand lifting pipe, enabling the plurality of vertical pipe sections backflushing branch water pipes of the sand lifting pipe to enter a vertical pipe section of the sand lifting pipe, flushing a plurality of positions of the vertical pipe section of the sand lifting pipe, and closing the backflushing water distribution valve on the vertical pipe section backflushing main water pipe of the sand lifting pipe after flushing is completed;
(3) flushing a sand discharge pipe: closing a gate valve of a sand outlet of the dry type sediment pump, opening a backflushing water distribution valve on a backflushing water pipe of the sediment outlet pipe, enabling reclaimed water in a reclaimed water pipe network to enter the backflushing water pipe of the sediment outlet pipe through a backflushing main water pipe, enabling the reclaimed water to enter the sediment outlet pipe through the backflushing main water pipe, flushing the sediment outlet pipe, and closing the backflushing water distribution valve on the backflushing water pipe of the sediment outlet pipe after flushing;
(4) dredging the dredging opening: when the back flushing is ineffective, the dredging opening can be opened, so that the dredging without stopping production is realized.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention abandons the diving sand discharging process, omits the sand scraping and sucking machine and other equipment, upgrades the bottom pipe sand discharging process, sets back flushing points on the sand lifting pipe and the sand discharging pipe in a shunt and subsection multi-point way, simultaneously, each section of back flushing water inlet can be independently controlled by a valve, and uses a dry type sand pump, thus leading the equipment maintenance and the pipeline cleaning to be more convenient and easier.
2. The sand suction pipe mouth is designed to be a half-bell mouth-shaped structure at the lower part of the upper gap, and the pipe end of the sand suction pipe is subjected to necking treatment, so that sundries with equal pipe diameters can be prevented from entering, the blocking probability of the sand lifting pipe is reduced, and the backwashing frequency is reduced.
3. The special dredging port is additionally arranged, and the blind plate of the dredging port can be opened when backwashing is ineffective, so that non-stop dredging is realized.
4. The pipelines in the backwashing structure are composed of the inner pipeline and the outer pipeline, and the inner pipeline and the outer pipeline are fixedly connected through the reinforcing ribs, so that the actual structural strength of the pipelines can be enhanced, and the possibility that the pipelines are damaged in the sediment conveying process is reduced.
5. In the invention, the inner pipeline 42 is fixed with a plurality of buffer blocks, and rubber particles are filled in the gap between the inner pipeline and the outer pipeline, so that the buffer capacity of the pipeline can be enhanced, and the possibility of damage to the pipeline in the sediment conveying process is further reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a backwash structure of the present invention;
FIG. 3 is a schematic cross-sectional view taken at A in FIG. 1 according to the present invention;
FIG. 4 is a schematic sectional view taken along the line A-A in FIG. 3 according to the present invention;
in the figure: 1. a grit chamber; 2. a sand collecting groove; 3. a sand suction pipe orifice; 4. a sand lifting pipe; 5. a sand pump well is extracted; 6. a backwashing structure; 61. the sand discharge pipe is used for reversely flushing the water pipe; 62. back flushing the main water pipe; 621. a buffer block; 622. an inner conduit; 623. an outer conduit; 624. rubber particles; 625. reinforcing ribs; 63. a backflushing water distribution valve; 64. a sand lifting pipe flat pipe section is used for reversely flushing a water pipe; 65. a vertical pipe section of the sand lifting pipe backflushs a main water pipe; 66. a vertical pipe section of the sand lifting pipe backflushs a branch water pipe; 7. a dry type sand pump; 8. a gate valve; 9. dredging the opening; 10. a sand discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the present invention provides the following technical solutions: a segmented backflushing anti-clogging sand lifting and discharging device comprises a sand setting tank 1, a sand collecting groove 2 is arranged inside the sand setting tank 1, a sand lifting pump well 5 is arranged on one side of the sand setting tank 1, a dry type sand pump 7 is connected above the sand lifting pump well 5 through a support, a sand lifting pipe 4 is arranged at a sand inlet of the dry type sand pump 7, a sand discharging pipe 10 is arranged at a sand outlet of the dry type sand pump 7, the sand lifting pipe 4 and the dry type sand pump 7 as well as the dry type sand pump 7 and the sand discharging pipe 10 are connected through a gate valve 8, one end of the sand lifting pipe 4 far away from the dry type sand pump 7 extends into the sand collecting groove 2 and is provided with a sand sucking pipe port 3, a backflushing structure 6 is arranged on the sand lifting pipe 4 and the sand discharging pipe 10, the backflushing structure 6 comprises a sand discharging pipe backflushing pipe 61, a backflushing main water pipe 62, a backflushing water distribution valve 63, a backflushing pipe horizontal pipe segment backflushing water pipe 64, a vertical pipe segment 65 and a backflushing branch water pipe segment branch pipe 66 of the sand lifting pipe segment, the backflushing main water pipe 62 is connected with a reclaimed water pipe network, the backflushing main water pipe 62 is respectively connected with a sand lifting pipe flat pipe section backflushing water pipe 64, a sand lifting pipe vertical pipe section backflushing main water pipe 65 and a sand discharging pipe backflushing water pipe 61, the sand lifting pipe flat pipe section backflushing water pipe 64 is located on one side of the sand lifting pipe vertical pipe section backflushing main water pipe 65, the sand discharging pipe backflushing water pipe 61 is located on the other side of the sand lifting pipe vertical pipe section backflushing main water pipe 65, one side, far away from the sand lifting pipe flat pipe section backflushing water pipe 64, of the sand lifting pipe vertical pipe section backflushing main water pipe 65 is connected with a plurality of sand lifting pipe vertical pipe section backflushing branch water pipes 66, and backflushing water distribution valves 63 are mounted on the sand discharging pipe backflushing main water pipe 61, the sand lifting pipe flat pipe section backflushing main water pipe 64 and the sand lifting pipe vertical pipe section backflushing main water pipe 65.
Specifically, the sand suction pipe orifice 3 is arranged at the position of the bottom of the sand collecting groove 2 in the longitudinal direction 1/3,
by adopting the technical scheme, the sand suction of the sand lifting pipe 4 is not hindered, and the back washing operation of the sand lifting pipe 4 is convenient to carry out.
Specifically, the sand suction pipe orifice 3 is of a semi-bell mouth structure with a notch at the upper part and a semi-bell mouth at the lower part, the pipe end of the sand suction pipe orifice 3 is necked down,
through adopting above-mentioned technical scheme to prevent that equal pipe diameter debris from getting into.
Specifically, a dredging hole 9 is arranged near the upper part of the sand lifting pipe 4,
by adopting the technical scheme, the dredging port 9 can be opened when the back washing structure 6 is ineffective in back washing, so that the dredging without stopping production is realized.
Specifically, the dredging opening 9 is 200-300 mm higher than the working liquid level of the grit chamber 1,
through adopting above-mentioned technical scheme, conveniently dredge work through dredging opening 9.
Specifically, the backflushing main water pipe 62 comprises an inner pipe 622, an outer pipe 623 and reinforcing ribs 625, the outer pipe 623 is arranged outside the inner pipe 622, the inner pipe 622 and the outer pipe 623 are fixedly connected through the plurality of reinforcing ribs 625,
through adopting above-mentioned technical scheme, the actual structural strength of interior pipeline 622 can be strengthened to strengthening rib 625, reduces the pipeline and receives the possibility of damaging in silt transportation process.
Specifically, a plurality of buffer blocks 621 are fixed inside the inner pipe 622,
through adopting above-mentioned technical scheme, buffer block 621 can play the effect of buffering to the silt that gets into, avoids silt to cause the vertical flush to inner tube 622, reduces the possibility that receives the damage in silt transportation process.
Specifically, rubber particles 624 are filled between the inner pipe 622 and the outer pipe 623,
through adopting above-mentioned technical scheme, rubber granule 624 can also play the effect of shock attenuation buffering when supporting, reduces the pipeline and receives the possibility of damaging in silt transportation process.
Specifically, the structures of the sand discharge pipe back flushing pipe 61, the sand lifting pipe flat pipe section back flushing pipe 64, the sand lifting pipe vertical pipe section back flushing main water pipe 65 and the sand lifting pipe vertical pipe section back flushing branch water pipe 66 are the same as the structure of the back flushing main water pipe 62,
by adopting the technical scheme, the sand discharge pipe back flushing pipe 61, the sand lifting pipe flat pipe section back flushing pipe 64, the sand lifting pipe vertical pipe section back flushing main water pipe 65 and the sand lifting pipe vertical pipe section back flushing branch water pipe 66 also have a buffering effect.
Specifically, the sand lifting and discharging process of the segmented backflushing anti-clogging sand lifting and discharging device comprises the following steps:
(1) flushing a flat pipe section of the sand lifting pipe: closing a gate valve 8 of a sand inlet of a dry type sediment pump 7, opening a backflushing water distribution valve 63 on a sand lifting pipe flat pipe section backflushing water pipe 64, enabling reclaimed water in a reclaimed water pipe network to enter the sand lifting pipe flat pipe section backflushing water pipe 64 through a backflushing main water pipe 62, enabling the reclaimed water to enter a flat pipe section of a sand lifting pipe 4 through the sand lifting pipe flat pipe section backflushing water pipe 64, flushing the flat pipe section of the sand lifting pipe 4, and closing the backflushing water distribution valve 63 on the sand lifting pipe flat pipe section backflushing water pipe 64 after flushing is completed;
(2) washing a vertical pipe section of the sand lifting pipe: closing a gate valve 8 of a sand inlet of a dry type sand pump 7, opening a backflushing water distribution valve 63 on a sand lifting pipe vertical pipe section backflushing main water pipe 65, enabling reclaimed water in a reclaimed water pipe network to enter the sand lifting pipe vertical pipe section backflushing main water pipe 65 through a backflushing main water pipe 62, enabling reclaimed water in a sand lifting pipe vertical pipe section backflushing main water pipe 65 to enter a plurality of sand lifting pipe vertical pipe section backflushing branch water pipes 66, enabling the plurality of sand lifting pipe vertical pipe section backflushing branch water pipes 66 to enter vertical pipe sections of the sand lifting pipe 4, flushing a plurality of positions of the vertical pipe sections of the sand lifting pipe 4, and closing the backflushing water distribution valve 63 on the sand lifting pipe vertical pipe section backflushing main water pipe 65 after flushing is completed;
(3) flushing a sand discharge pipe: closing a gate valve 8 of a sand outlet of the dry type sediment pump 7, opening a backflushing water distribution valve 63 on a sand discharge pipe backflushing water pipe 61, enabling reclaimed water in a reclaimed water pipe network to enter the sand discharge pipe backflushing water pipe 61 through a backflushing main water pipe 62, enabling reclaimed water to enter the sand discharge pipe 10 through the sand discharge pipe backflushing water pipe 61, flushing the sand discharge pipe 10, and closing the backflushing water distribution valve 63 on the sand discharge pipe backflushing water pipe 61 after flushing is completed;
(4) dredging the dredging opening: when the back flushing is ineffective, the dredging opening 9 can be opened to realize dredging without stopping production,
by adopting the technical scheme, the equipment maintenance and the pipeline cleaning are simple and easy to implement.
The working principle of the embodiment is as follows: flushing a flat pipe section of the sand lifting pipe: closing a gate valve 8 of a sand inlet of a dry type sediment pump 7, opening a backflushing water distribution valve 63 on a sand lifting pipe flat pipe section backflushing water pipe 64, enabling reclaimed water in a reclaimed water pipe network to enter the sand lifting pipe flat pipe section backflushing water pipe 64 through a backflushing main water pipe 62, enabling the reclaimed water to enter a flat pipe section of a sand lifting pipe 4 through the sand lifting pipe flat pipe section backflushing water pipe 64, flushing the flat pipe section of the sand lifting pipe 4, and closing the backflushing water distribution valve 63 on the sand lifting pipe flat pipe section backflushing water pipe 64 after flushing is completed; washing a vertical pipe section of the sand lifting pipe: closing a gate valve 8 of a sand inlet of a dry type sand pump 7, opening a backflushing water distribution valve 63 on a sand lifting pipe vertical pipe section backflushing main water pipe 65, enabling reclaimed water in a reclaimed water pipe network to enter the sand lifting pipe vertical pipe section backflushing main water pipe 65 through a backflushing main water pipe 62, enabling reclaimed water in a sand lifting pipe vertical pipe section backflushing main water pipe 65 to enter a plurality of sand lifting pipe vertical pipe section backflushing branch water pipes 66, enabling the plurality of sand lifting pipe vertical pipe section backflushing branch water pipes 66 to enter vertical pipe sections of the sand lifting pipe 4, flushing a plurality of positions of the vertical pipe sections of the sand lifting pipe 4, and closing the backflushing water distribution valve 63 on the sand lifting pipe vertical pipe section backflushing main water pipe 65 after flushing is completed; flushing a sand discharge pipe: closing a gate valve 8 of a sand outlet of the dry type sediment pump 7, opening a backflushing water distribution valve 63 on a sand discharge pipe backflushing water pipe 61, enabling reclaimed water in a reclaimed water pipe network to enter the sand discharge pipe backflushing water pipe 61 through a backflushing main water pipe 62, enabling reclaimed water to enter the sand discharge pipe 10 through the sand discharge pipe backflushing water pipe 61, flushing the sand discharge pipe 10, and closing the backflushing water distribution valve 63 on the sand discharge pipe backflushing water pipe 61 after flushing is completed; dredging the dredging opening: when the back flushing method is ineffective in sand removal, the dredging port 9 can be opened to realize dredging without stopping production; in the backflushing sand lifting and discharging process, the backflushing water pipe 61 of the sand discharging pipe, the backflushing main water pipe 62 of the reclaimed water, the backflushing water pipe 64 of the sand lifting pipe flat pipe section, the backflushing main water pipe 65 of the sand lifting pipe vertical pipe section and the backflushing branch water pipe 66 of the sand lifting pipe vertical pipe section are all composed of an inner pipeline 622 and an outer pipeline 623, the inner pipeline 622 and the outer pipeline 623 are fixedly connected through a plurality of reinforcing ribs 625, therefore, the actual structural strength of the pipelines can be enhanced, meanwhile, a plurality of buffer blocks 621 are fixed on the inner pipeline 622, and rubber particles 624 are filled in gaps between the inner pipeline 622 and the outer pipeline 623, so that the buffer capacity of the pipelines can be enhanced, the two are mutually matched, and the possibility that the pipelines are damaged in the sediment conveying process is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a sand device is carried to anti-clogging of segmentation recoil, includes grit chamber (1), its characterized in that: the sand-collecting tank (2) is arranged in the sand-settling tank (1), a sand-lifting pump well (5) is arranged on one side of the sand-settling tank (1), a dry-type sand pump (7) is connected to the upper side of the sand-lifting pump well (5) through a support, a sand-lifting pipe (4) is arranged at a sand inlet of the dry-type sand pump (7), a sand-discharging pipe (10) is arranged at a sand outlet of the dry-type sand pump (7), the sand-lifting pipe (4) and the dry-type sand pump (7) as well as the dry-type sand pump (7) and the sand-discharging pipe (10) are connected through a gate valve (8), one end of the sand-lifting pipe (4) far away from the dry-type sand pump (7) extends to the back-flushing inner part of the sand-collecting tank (2) and is provided with a sand-sucking pipe opening (3), sand structures (6) are arranged on the sand-lifting pipe (4) and the sand-discharging pipe (10), and the sand-discharging pipe structures (6) comprise a sand-discharging pipe back-flushing pipe (61), The sand lifting pipe backwashing water pipe comprises a backwashing main water pipe (62), a backwashing water distribution valve (63), a sand lifting pipe horizontal pipe section backwashing pipe (64), a sand lifting pipe vertical pipe section backwashing main water pipe (65) and a sand lifting pipe vertical pipe section backwashing branch water pipe (66), wherein the backwashing main water pipe (62) is connected with a medium water pipe network, the backwashing main water pipe (62) is respectively connected with a sand lifting pipe horizontal pipe section backwashing pipe (64), a sand lifting pipe vertical pipe section backwashing main water pipe (65) and a sand discharging pipe backwashing pipe (61), the sand lifting pipe horizontal backwashing pipe section (64) is positioned on one side of the sand lifting pipe vertical pipe section backwashing main water pipe (65), the sand discharging pipe backwashing pipe (61) is positioned on the other side of the sand lifting pipe vertical pipe section main water pipe (65), one side of the sand lifting pipe vertical pipe section backwashing main water pipe (65), which is far away from the sand lifting pipe horizontal backwashing pipe section backwashing pipe (64), is connected with a plurality of sand lifting pipe vertical pipe sections (66), and the sand discharge pipe back flushing pipe (61), the sand lifting pipe flat pipe section back flushing pipe (64) and the sand lifting pipe vertical pipe section back flushing main water pipe (65) are all provided with back flushing water distribution valves (63).
2. The segmented backflushing anti-clogging lifting and sand discharging device according to claim 1, wherein: the sand suction pipe mouth (3) is arranged at the bottom of the sand collecting groove (2) in the longitudinal direction 1/3.
3. The segmented backflushing anti-clogging sand lifting and discharging device according to claim 2, wherein: the sand suction pipe mouth (3) is of a semi-horn mouth structure with an upper notch and a lower part, and the pipe end of the sand suction pipe mouth (3) is subjected to necking treatment.
4. The segmented backflushing anti-clogging sand lifting and discharging device according to claim 3, wherein: and a dredging opening (9) is arranged above the sand lifting pipe (4).
5. The segmented backflushing anti-clogging lifting and sand discharging device according to claim 4, wherein: the dredging port (9) is 200-300 mm higher than the working liquid level of the grit chamber (1).
6. The segmented backflushing anti-clogging sand lifting and discharging device according to claim 5, wherein: the backflushing main water pipe (62) comprises an inner pipeline (622), an outer pipeline (623) and reinforcing ribs (625), the outer pipeline (623) is arranged outside the inner pipeline (622), and the inner pipeline (622) and the outer pipeline (623) are fixedly connected through the plurality of reinforcing ribs (625).
7. The segmented backflushing anti-clogging sand lifting and discharging device according to claim 6, wherein: a plurality of buffer blocks (621) are fixed inside the inner pipeline (622).
8. The segmented backflushing anti-clogging sand lifting and discharging device according to claim 7, wherein: rubber particles (624) are filled between the inner pipeline (622) and the outer pipeline (623).
9. The segmented backflushing anti-clogging sand lifting and discharging device according to claim 8, wherein: the structures of the sand discharge pipe backwashing pipe (61), the sand lifting pipe flat pipe section backwashing pipe (64), the sand lifting pipe vertical pipe section backwashing main water pipe (65) and the sand lifting pipe vertical pipe section backwashing branch water pipe (66) are the same as the structure of the backwashing main water pipe (62).
10. The sectional backflushing anti-clogging sand lifting and discharging process of the device according to any one of claims 1 to 9, comprising the following steps:
(1) flushing a flat pipe section of the sand lifting pipe: closing a gate valve (8) of a sand inlet of a dry type sediment pump (7), opening a backflushing water distribution valve (63) on a sand lifting pipe horizontal pipe section backflushing water pipe (64), enabling reclaimed water in a reclaimed water pipe network to enter the sand lifting pipe horizontal pipe section backflushing water pipe (64) through a backflushing main water pipe (62), enabling the reclaimed water to enter a horizontal pipe section of the sand lifting pipe (4) through the sand lifting pipe horizontal pipe section backflushing water pipe (64), flushing the horizontal pipe section of the sand lifting pipe (4), and closing the backflushing water distribution valve (63) on the sand lifting pipe horizontal pipe section backflushing water pipe (64) after flushing is completed;
(2) washing a vertical pipe section of the sand lifting pipe: closing a gate valve (8) of a sand inlet of a dry type sand pump (7), opening a backflushing water distribution valve (63) on a sand lifting pipe vertical pipe section backflushing main water pipe (65), allowing reclaimed water in a reclaimed water pipe network to enter the sand lifting pipe vertical pipe section backflushing main water pipe (65) through a backflushing main water pipe (62), allowing reclaimed water in a reclaimed water pipe network to enter a plurality of sand lifting pipe vertical pipe section backflushing branch water pipes (66) through the sand lifting pipe vertical pipe section backflushing main water pipe (65), allowing the reclaimed water to enter vertical pipe sections of the sand lifting pipe (4) through the plurality of sand lifting pipe vertical pipe section backflushing branch water pipes (66), flushing a plurality of positions of the vertical pipe sections of the sand lifting pipe (4), and closing the backflushing water distribution valve (63) on the sand lifting pipe vertical pipe section backflushing main water pipe (65) after flushing;
(3) flushing a sand discharge pipe: closing a gate valve (8) of a sand outlet of a dry type sediment pump (7), opening a backflushing water distribution valve (63) on a backflushing water pipe (61) of the sediment outflow pipe, enabling reclaimed water in a reclaimed water pipe network to enter the backflushing water pipe (61) of the sediment outflow pipe through a backflushing main water pipe (62), enabling reclaimed water in the reclaimed water pipe network to enter the sediment outflow pipe (10) through the backflushing main water pipe (62), flushing the sediment outflow pipe (10), and closing the backflushing water distribution valve (63) on the backflushing water pipe (61) of the sediment outflow pipe after flushing;
(4) dredging the dredging opening: when the back flushing is ineffective, the dredging opening (9) can be opened, so that the dredging without stopping production is realized.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346879.0A CN113559565A (en) | 2020-04-28 | 2020-04-28 | Sectional backflushing anti-blocking sand lifting and discharging device and sand lifting and discharging process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010346879.0A CN113559565A (en) | 2020-04-28 | 2020-04-28 | Sectional backflushing anti-blocking sand lifting and discharging device and sand lifting and discharging process thereof |
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| CN113559565A true CN113559565A (en) | 2021-10-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116474462A (en) * | 2023-04-21 | 2023-07-25 | 南京银茂铅锌矿业有限公司 | Unpowered concentration method for coarse-grained minerals |
-
2020
- 2020-04-28 CN CN202010346879.0A patent/CN113559565A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116474462A (en) * | 2023-04-21 | 2023-07-25 | 南京银茂铅锌矿业有限公司 | Unpowered concentration method for coarse-grained minerals |
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