WO2023130308A1

WO2023130308A1 - Solid-liquid separation device applied to treatment of waste water with high suspended solids

Info

Publication number: WO2023130308A1
Application number: PCT/CN2022/070487
Authority: WO
Inventors: 李俊峰; 王一博
Original assignee: 广州工商学院
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2023-07-13
Also published as: CN117597313A

Abstract

The present invention relates to the field of waste water treatment. Provided is a solid-liquid separation device applied to the treatment of waste water with high suspended solids. The solid-liquid separation device comprises: a separation tank (1), a filter bed (2), which is fixedly mounted in the middle of the interior of the separation tank (1), and an anti-blocking assembly, which is arranged in the center of the separation tank (1), wherein the filter bed (2) has a tubular structure, and is distributed symmetrically about the central axis of the separation tank (1); the anti-blocking assembly is used to reduce attachments of impurity on the filter bed (2), and is used for the collection and treatment of impurities; the anti-blocking assembly is arranged in the center of the filter bed (2); and the anti-blocking assembly comprises a support tube (3), which is fixedly mounted in the center of the separation tank (1), a spiral rod (4), which is movably arranged in the support tube (3), and a collection tube (8), which is fixedly mounted above the support tube (3). The spiral rod (4) is driven by means of a driving electric motor (5) to rotate in the support tube (3), so that attachments on an inner wall of the support tube (3) and an inner wall of the filter bed (2) are conveniently scraped off in a timely manner so as to avoid the problem of reduced filtration efficiency due to the attachments of impurity on the filter bed (2). The impurities are conveyed by means of the spiral rod (4), which facilitates collection of the impurities in a centralized manner, so as to avoid the accumulation of the impurities inside the support tube (3).

Description

A solid-liquid separation device for high suspended solids wastewater treatment

technical field

The invention belongs to the field of wastewater treatment, and in particular relates to a solid-liquid separation device applied to the treatment of wastewater with high suspended matter.

Background technique

Wastewater treatment is a technology that uses physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, and achieve wastewater recovery, reuse, and full use of water resources. Sand tank filters are commonly used for wastewater treatment.

However, some waste water usually contains solid particles with high suspended solids. When the sand filter is used to treat this kind of waste water, a large number of solid particles are easy to attach to the filter bed in the sand filter, thereby reducing the filtration efficiency of the filter bed. If it is too much, it will accumulate inside the sand tank filter, and if it is not treated in time, the service life of the filter bed will be reduced, and the existing sand tank filter cannot handle the internal impurities in time.

Therefore, the existing sand tank filter has the problem that it is inconvenient to remove impurities on the filter bed in time during filtration, and the impurities inside the sand tank filter are inconvenient to clean up in time. For this reason, we propose a method for high suspended solids wastewater treatment Solid-liquid separation device.

Contents of the invention

The purpose of the present invention is to provide a solid-liquid separation device applied to the treatment of high-suspended solids wastewater, which can effectively solve the problem of inconvenient removal of impurities on the filter bed in the existing sand tank filter proposed in the background technology. And the problem that the impurities inside the sand tank filter are inconvenient to clean up in time.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The invention is a solid-liquid separation device applied to the treatment of high-suspended solids wastewater, comprising a separation tank, a filter bed fixedly installed in the middle of the separation tank, and an anti-blocking component arranged in the center of the separation tank, and the filter bed is a tubular structure , and distributed symmetrically about the central axis of the separation tank, the anti-blocking assembly is used to reduce the attachment of impurities on the filter bed, and for the collection and treatment of impurities, the anti-blocking assembly is arranged at the center of the filter bed;

The anti-blocking assembly includes a support tube fixedly installed in the center of the separation tank, a screw rod movably arranged inside the support tube, a collection tube fixedly installed above the support tube, and a drive motor fixedly installed above the support tube. The pipe runs through the filter bed and the separation tank, and extends above the separation tank. The bottom output end of the drive motor is fixedly connected with the screw rod. The collection pipe is used to collect impurities inside the filter bed. The lower end of the support pipe is ring-side There are a plurality of filter holes evenly distributed at intervals, and the support tube is attached to the inner wall of the filter bed. When filtering, the wastewater is injected upward from the bottom of the support tube and enters the filter bed through the filter holes. The filter bed is used for solid-liquid separation of suspended solids wastewater. Since it is used to treat wastewater with high suspended solids, the solid content in it is large. During the filtration process It is easy to form a large amount of attachment on the filter bed, which will greatly reduce the filtration capacity of the filter bed. This design drives the screw rod to rotate in the support tube through the drive motor, which is convenient for scraping off the attachments on the inner wall of the support tube and the inner wall of the filter bed in time to avoid the occurrence of The problem of reduced filtration efficiency caused by serious attachment of impurities on the filter bed. At the same time, the speed of the screw rod in this design is adjustable. The screw rod rotates at a low speed. During the rotation, the impurities inside the support tube are transported to the top, and the impurities finally enter the collection tube Centralized collection of the inside of the impurity support tube to avoid the problem of excessive water pressure inside the support tube caused by the accumulation of impurities inside the support tube, and impurities being squeezed into the depth of the filter bed, which is convenient to improve the service life of the filter bed. Scraping off impurities makes it difficult for impurities to adhere to the inside of the filter bed, making the backwash of the filter bed cleaner, and also improving the service life of the filter bed. In this design, the wall thickness of the support pipe is 0.5-1mm, which is convenient to avoid the accumulation of impurities in the filter holes.

Preferably, the anti-blocking assembly further includes a support ring fixedly installed on the side of the support pipe ring, and the support ring is used for supporting and fixing the support pipe at the filter hole. The support ring is convenient to improve the strength of the support tube at the filter hole, so that the support of the support tube is more stable.

Preferably, there are no less than three sets of support rings, and the support tubes are evenly and equidistantly distributed. The support effect on the support pipe is better.

Preferably, the anti-blocking assembly also includes a sealing assembly for sealing the outlet of the collecting pipe, the sealing assembly includes an active pipe threaded on the discharge end of the collecting pipe, a briquetting block movably connected inside the active pipe, The seal ring is fixedly installed on the ring side of the pressure block. Through the sealing function of the movable pipe pressing block and the sealing ring, it is convenient to prevent waste water from entering the inside of the collecting pipe. During the rotation of the movable tube, the pressing block presses the sealing ring on the nozzle of the collecting pipe. Through the rotation of the pressing block on the movable pipe, it is convenient to further tighten the movable pipe on the collecting pipe, and at the same time, it is convenient to make the sealing ring and the collecting pipe The press fit is firmer, resulting in a higher seal. After the waste water is filtered, clear water is passed into the support tube, and the movable tube is opened to facilitate cleaning of the support tube, and impurities inside the support tube can also be manually removed, making cleaning convenient.

Preferably, both the pressing block and the sealing ring have a frustum-shaped structure, and the outlet of the collecting pipe is a chamfered structure, which matches the shape of the sealing ring. It is convenient to increase the contact area between the sealing ring and the pipe wall of the collection pipe to improve the sealing performance.

Preferably, a water outlet pipe is fixedly installed above the side of the separation tank, and a water inlet pipe is fixedly installed below the same side, and a control valve is fixedly installed in the middle of the same side, and the water outlet pipe is fixedly installed above the ring side of the control valve. The water inlet pipe is fixedly installed under the ring side of the control valve, and a water injection pipe and a drain pipe are installed on the ring side of the control valve, and the filter bed is backwashed after the control valve is adjusted. By adjusting the control valve, the outlet pipe can be connected with the drain pipe, and the water inlet pipe can be connected with the water injection pipe for solid-liquid separation of waste water. By adjusting the control valve, the outlet pipe can be connected with the water injection pipe, and the water inlet pipe can be connected with the drain pipe Facilitates backwashing of the filter bed.

Preferably, a water pump is fixedly installed on the side of the separation tank, and the water outlet end of the water pump is fixedly connected to the water inlet end of the water injection pipe. The water pump is convenient for injecting water into the device, facilitating the wastewater treatment and backwashing of the device.

Preferably, a sewage discharge pipe is fixedly installed at the lower end of the separation tank, and a first regulating valve is fixedly installed on the sewage discharge pipe, and the sewage discharge pipe is used to discharge impurities inside the separation tank. It is convenient to discharge the impurities inside the separation tank.

Preferably, an impurity removal pipe is fixedly installed at the bottom of the separation tank, a second regulating valve is fixedly installed on the impurity removal pipe, and the impurity removal pipe is used to discharge impurities at the bottom of the support pipe. It is convenient to discharge the impurities at the bottom of the support tube.

Preferably, a hand wheel is fixedly installed at the end of the movable tube away from the collecting tube. Easy to adjust active tube.

The present invention has the following beneficial effects:

The invention drives the screw rod to rotate in the support tube by driving the motor, which facilitates timely scraping off the attachments on the inner wall of the support tube and the inner wall of the filter bed, and avoids the problem of reduced filtration efficiency caused by serious impurities on the filter bed. The rotation speed of the rod is adjustable, and the screw rod rotates at a low speed. During the rotation, the impurities inside the support tube are transported to the top, and the impurities finally enter the inside of the collection tube for centralized collection, which is convenient to avoid the accumulation of impurities inside the support tube and avoids The safety hazards caused by the excessive water pressure inside the support pipe caused by the blockage of the filter bed, and the problem of impurities being squeezed into the depth of the filter bed caused by the excessive water pressure are avoided, which is convenient to improve the service life of the filter bed. At the same time, during backwashing, by scraping off impurities in time, the impurities are not easy to adhere to the inside of the filter bed, which facilitates the backwashing of the filter bed cleaner and also improves the service life of the filter bed.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a perspective view of a solid-liquid separation device applied to the treatment of high-suspended solids wastewater according to the present invention;

Fig. 2 is a front sectional view of a solid-liquid separation device applied to the treatment of high-suspended solids wastewater according to the present invention;

Fig. 3 is an enlarged view of part A in Fig. 2 of a solid-liquid separation device applied to the treatment of high-suspended solids wastewater according to the present invention;

Fig. 4 is an enlarged view of part B in Fig. 2 of a solid-liquid separation device applied to the treatment of high-suspended solids wastewater according to the present invention;

Fig. 5 is a perspective view of a solid-liquid separation device support tube and its upper structure for the treatment of high-suspended solids wastewater according to the present invention;

Fig. 6 is a perspective view of a sealing assembly of a solid-liquid separation device applied to the treatment of high-suspended solids wastewater according to the present invention;

Fig. 7 is a side view of a solid-liquid separation device applied to the treatment of high-suspended solids wastewater according to the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Separation tank; 2. Filter bed; 3. Support pipe; 4. Screw rod; 5. Drive motor; 6. Filter hole; 7. Support ring; 8. Collection pipe; 11. Sealing ring; 12. Water outlet pipe; 13. Water inlet pipe; 14. Control valve; 15. Water injection pipe; 16. Drainage pipe; 17. Water pump; 18. Sewage pipe; 19. The first regulating valve; 20. The second Regulating valve; 21, hand wheel; 22, impurity removal pipe.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicate orientation or positional relationship, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying that a referenced component or element must have a particular orientation, be constructed and operate in a particular orientation.

Example:

Please refer to Figs. 1-7, the present invention is a solid-liquid separation device applied to the treatment of high-suspended solids wastewater, comprising a separation tank 1, a filter bed 2 fixedly installed in the middle of the separation tank 1, and a separation tank 1 The anti-blocking component in the center, the filter bed 2 is a tubular structure, and is symmetrically distributed about the central axis of the separation tank 1, the anti-blocking component is used to reduce the adhesion of impurities on the filter bed 2, and is used for the collection and treatment of impurities, the anti-blocking component Set in the center of the filter bed 2;

The anti-blocking assembly includes a support tube 3 fixedly installed in the center of the separation tank 1, a screw rod 4 movably arranged inside the support tube 3, a collection tube 8 fixedly installed above the support tube 3, and a drive unit fixedly installed above the support tube 3. The motor 5 and the support pipe 3 run through the filter bed 2 and the separation tank 1, and extend above the separation tank 1. The bottom output end of the drive motor 5 is fixedly connected with the screw rod 4, and the collection pipe 8 is used to collect impurities inside the filter bed 2 A plurality of filter holes 6 distributed evenly at intervals are opened on the ring side of the lower end of the support pipe 3 , and the support pipe 3 is attached to the inner wall of the filter bed 2 . When filtering, the waste water is injected upward from the bottom of the support pipe 3, and enters the inside of the filter bed 2 through the filter hole 6. The filter bed 2 is used for solid-liquid separation of suspended waste water. Since it is used to treat waste water with high suspended matter, the solid content in it is high. , it is easy to form a large amount of adhesion on the filter bed 2 during the filtration process, which will greatly reduce the filtration capacity of the filter bed 2. In this design, the drive motor 5 drives the screw rod 4 to rotate in the support tube 3, so that the inner wall of the support tube 3 and the filter The attachments on the inner wall of the bed 2 are scraped off in time to avoid the problem of reduced filtration efficiency caused by serious impurities on the filter bed 2 during filtration. At the same time, the speed of the screw 4 in this design is adjustable, and the screw 4 rotates at a low speed. During the rotation process, the impurities inside the support tube 3 are transported to the upper side, and the impurities finally enter the inside of the collection tube 8 for centralized collection, so that the impurities can be processed in time, which is convenient to avoid the accumulation of impurities inside the support tube 3, and avoids the filter bed 2 The safety hazards caused by the excessive internal water pressure of the support pipe 3 caused by blockage, and the problem of impurities being squeezed into the depth of the filter bed 2 caused by the excessive water pressure are avoided, which is convenient to improve the service life of the filter bed 2. When removing the impurities in time, the impurities are not easy to adhere to the inside of the filter bed 2, so that the backwashing of the filter bed 2 is easier, and the service life of the filter bed 2 is also improved. The wall thickness of support pipe 3 is 0.5-1mm in this design, is convenient to avoid impurity deposition in filter hole 6.

Wherein, the anti-blocking assembly further includes a support ring 7 fixedly installed on the ring side of the support pipe 3, and the support ring 7 is used for supporting and fixing the support pipe 3 at the filter hole 6. The support ring 7 is convenient to improve the strength of the support tube 3 at the filter hole 6, so that the support of the support tube 3 is more stable.

Wherein, there are no less than three sets of support rings 7, and the support tubes 3 are evenly and equidistantly distributed. This makes the supporting effect on the support pipe 3 better.

Wherein, the anti-blocking assembly also includes a sealing assembly for sealing the discharge port of the collecting pipe 8, and the sealing assembly includes a movable pipe 9 that is threadedly connected to the discharge end of the collecting pipe 8, a briquetting block 10 that is movably connected inside the movable pipe 9, The sealing ring 11 fixedly installed on the ring side of the pressing block 10. Through the sealing effect of the movable pipe 9 briquetting block 10 and the sealing ring 11, it is convenient to prevent waste water from entering the collection pipe 8. During the rotation of the movable tube 9, the briquetting block 10 presses the sealing ring 11 on the mouth of the collecting tube 8, and the rotation of the briquetting block 10 on the movable tube 9 facilitates further tightening the movable tube 9 on the collecting tube 8, and at the same time facilitates sealing The pressing fit between the ring 11 and the collecting pipe 8 is stronger, resulting in a higher sealing performance. After the wastewater has been filtered, the movable pipe 9 is opened by feeding clear water into the support pipe 3 to facilitate the cleaning of the support pipe 3, and the internal impurities of the support pipe 3 can also be manually removed to facilitate cleaning.

Wherein, both the pressing block 10 and the sealing ring 11 are in the shape of a truncated cone, and the outlet of the collecting pipe 8 is a chamfered structure, which matches the shape of the sealing ring 11 . It is convenient to increase the contact area between the sealing ring 11 and the wall of the collection pipe 8 to improve the sealing performance.

Wherein, a water outlet pipe 12 is fixedly installed above the side of the separation tank 1, and a water inlet pipe 13 is fixedly installed below the same side, and a control valve 14 is fixedly installed in the middle of the same side, and the water outlet pipe 12 is fixedly installed above the ring side of the control valve 14, The water inlet pipe 13 is fixedly installed under the ring side of the control valve 14, and the water injection pipe 15 and the drain pipe 16 are installed on the ring side of the control valve 14, and the filter bed 2 is backwashed after the control valve 14 is adjusted. By adjusting the control valve 14, the outlet pipe 12 can be connected with the drain pipe 16, and the water inlet pipe 13 can be connected with the water injection pipe 15 for solid-liquid separation of waste water. By adjusting the control valve 14, the outlet pipe 12 can be connected with the water injection pipe 15 , The water inlet pipe 13 communicates with the drain pipe 16 to facilitate backwashing of the filter bed 2.

Wherein, a water pump 17 is fixedly installed on the side of the separation tank 1 , and the water outlet end of the water pump 17 is fixedly connected with the water inlet end of the water injection pipe 15 . The water pump 17 is convenient for injecting water into the device, facilitating the wastewater treatment and backwashing of the device.

Wherein, a sewage discharge pipe 18 is fixedly installed at the lower end of the separation tank 1, and a first regulating valve 19 is fixedly installed on the sewage discharge pipe 18, and the sewage discharge pipe 18 is used to discharge impurities inside the separation tank 1. It is convenient to discharge the impurities inside the separation tank 1 .

Wherein, the bottom of the separation tank 1 is fixedly equipped with a removal pipe 22 , on which a second regulating valve 20 is fixedly installed, and the removal pipe 22 is used to discharge impurities at the bottom of the support pipe 3 . It is convenient to discharge the impurities at the bottom of the support pipe 3 .

Wherein, a hand wheel 21 is fixedly installed on the end of the movable pipe 9 away from the collecting pipe 8 . It is convenient to adjust the movable pipe 9.

In the description of this specification, descriptions referring to the terms "one embodiment", "example", "specific example" and the like mean that specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments do not exhaust all details nor limit the invention to only specific embodiments. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims

A solid-liquid separation device applied to the treatment of high-suspended solids wastewater, characterized in that it includes a separation tank (1), a filter bed (2) fixedly installed in the middle of the separation tank (1), and a filter bed (2) installed in the separation tank (1). The anti-blocking assembly in the center, the filter bed (2) is a tubular structure and symmetrically distributed about the central axis of the separation tank (1), the anti-blocking assembly is used to reduce the adhesion of impurities on the filter bed (2), and For the collection and treatment of impurities, the anti-blocking component is arranged in the center of the filter bed (2);

The anti-blocking assembly includes a support pipe (3) fixedly installed in the center of the separation tank (1), a screw rod (4) movably arranged inside the support pipe (3), a collection pipe fixedly installed above the support pipe (3) (8), and the drive motor (5) that is fixedly installed on the top of the support pipe (3), the support pipe (3) runs through the filter bed (2) and the separation tank (1), and extends to the separation tank (1) Above, the bottom output end of the drive motor (5) is fixedly connected to the screw rod (4), the collection pipe (8) is used to collect impurities inside the filter bed (2), and the lower end of the support pipe (3) A plurality of filter holes (6) evenly spaced and distributed are opened on the side of the ring, and the support pipe (3) is attached to the inner wall of the filter bed (2).
A solid-liquid separation device for wastewater treatment with high suspended solids according to claim 1, characterized in that: the anti-blocking assembly also includes a support ring (7) fixedly installed on the ring side of the support pipe (3), The supporting ring (7) is used for supporting and fixing the supporting pipe (3) at the filter hole (6).
A solid-liquid separation device for high suspended solids wastewater treatment according to claim 2, characterized in that: the support rings (7) are not less than three groups, and the support pipes (3) are evenly spaced distributed.
A solid-liquid separation device for high suspended solids wastewater treatment according to claim 3, characterized in that: the anti-blocking component also includes a sealing component for sealing the outlet of the collecting pipe (8), The sealing assembly includes a movable pipe (9) threadedly connected to the discharge end of the collecting pipe (8), a briquetting block (10) movably connected inside the movable pipe (9), and a seal fixedly installed on the ring side of the briquetting block (10). Circle (11).
A solid-liquid separation device applied to high suspended solids wastewater treatment according to claim 4, characterized in that: the briquetting block (10) and the sealing ring (11) are both truncated circular structures, and the collection pipe ( 8) The discharge port is a chamfered structure, and matches the shape of the sealing ring (11).
A solid-liquid separation device for high suspended solids wastewater treatment according to claim 5, characterized in that an outlet pipe (12) is fixedly installed above the side of the separation tank (1), and fixed below the same side A water inlet pipe (13) is installed, and a control valve (14) is fixedly installed in the middle of the same side, and the water outlet pipe (12) is fixedly installed above the ring side of the control valve (14), and the water inlet pipe (13) is fixedly installed on the Below the ring side of the control valve (14), the ring side of the control valve (14) is also equipped with a water injection pipe (15) and a drain pipe (16). After the control valve (14) is adjusted, the filter bed (2) Backwash.
A solid-liquid separation device for high suspended solids wastewater treatment according to claim 6, characterized in that: a water pump (17) is fixedly installed on the side of the separation tank (1), and the water outlet of the water pump (17) is It is fixedly connected with the water inlet end of the water injection pipe (15).
A solid-liquid separation device for high suspended solids wastewater treatment according to claim 1, characterized in that: a sewage discharge pipe (18) is fixedly installed at the lower end of the separation tank (1), and the sewage discharge pipe (18 ) is fixedly installed with a first regulating valve (19), and the blowdown pipe (18) is used to discharge impurities inside the separation tank (1).
A solid-liquid separation device for high suspended solids wastewater treatment according to claim 1, characterized in that: the bottom of the separation tank (1) is fixedly equipped with a removal pipe (292), and the removal pipe (22) is fixedly installed with a second regulating valve (20), and the impurity removal pipe (22) is used to discharge the impurities at the bottom of the support pipe (3).
A solid-liquid separation device for high suspended solids wastewater treatment according to claim 1, characterized in that: the end of the movable pipe (9) away from the collection pipe (8) is fixedly equipped with a hand wheel (21).