CN111729357A - Stirring formula suspension filtration system - Google Patents
Stirring formula suspension filtration system Download PDFInfo
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- CN111729357A CN111729357A CN202010668914.0A CN202010668914A CN111729357A CN 111729357 A CN111729357 A CN 111729357A CN 202010668914 A CN202010668914 A CN 202010668914A CN 111729357 A CN111729357 A CN 111729357A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/38—Feed or discharge devices
- B01D24/40—Feed or discharge devices for feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4673—Regenerating the filtering material in the filter by moving the filtering element using rotary devices or vibration mechanisms, e.g. stirrers
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- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a stirring type suspension filtering system which comprises a filtering tank, a back flush sludge discharge pipeline and a purified water discharge unit, wherein the filtering tank is provided with a water distribution area, a filtering area and a clear water storage area, and suspension filtering materials are filled in the filtering area; be provided with belt cleaning device in the filtering ponds, this belt cleaning device is including setting up the wiper mechanism on the installation department, and wiper mechanism includes power supply, rotation piece, connecting portion and stirring portion, and connecting portion link firmly with the rotation connecting piece of setting in fixed connector including the fixed connector who links firmly on the water distribution roof, rotate the piece bottom and link firmly mutually with the rotation connecting piece. The invention has the advantages of ingenious structure, capability of ensuring the cleaning effect of the suspended filter material, realizing uniform water distribution, avoiding the problem of larger thickness difference of the suspended filter material due to nonuniform water distribution, ensuring uniform thickness of the suspended filter material, realizing sludge discharge during backwashing, avoiding the need of specially cleaning bottom silt, saving time, saving clean water and further improving the filtering efficiency.
Description
Technical Field
The invention relates to the field of filtration, in particular to a stirring type suspension filtration system.
Background
In a conventional river, lake or canal filtration process, forward filtration is often adopted, namely, a water source to be filtered enters a filtration tank from the top of the filtration tank and flows out from the bottom of the filtration tank after filtration, and filter materials in the tank are deposited on a filter plate in a density greater than that of water, such as a fast filter tank, a V-shaped filter tank and the like which are widely applied.
The traditional forward filtering mode has the following problems: in order to ensure the filtering effect, a thicker filtering material needs to be laid, and when water flows through the filtering material from top to bottom, the loss of a water head is caused; secondly, a large amount of high-quality water sources and power supplies are often consumed during backwashing, so that waste is serious; thirdly, if the water content in the water source to be treated is higher, the water algae can easily block the filter material, the backwashing frequency is increased, the energy consumption is further increased, and the water source is wasted.
For this purpose, the applicant discloses a reverse filtration suspension filtration system (i.e. CN 103977611A), comprising a filter body of a rectangular parallelepiped structure communicated with a water inlet channel and a back-washing system, wherein a lower water distribution top plate and an upper filter plate in the filter body divide the filter body into a raw water distribution region, a filtration region and a clean water storage region, a filter material with density lower than that of water is adopted in the filtration region, and a water source enters the filtration region through the raw water distribution region. The raw water is filtered by using the filter material with the density smaller than that of the water and a reverse filtering mode from bottom to top, and the filter material can be reversely washed by using the water head of the water purifier, so that the filtering efficiency is improved. However, the applicant finds that the technical scheme still has the following technical problems in actual operation:
firstly, only utilize the gravity of water to carry out the backwash when filtering, the washing effect is poor, simultaneously because the cell body is longer and the delivery pipe is long and thin, the silt that the backwash got off is easy to be gathered in the bottom of cell body and can't in time be discharged, needs to wash the silt of filter body bottom with a large amount of high-quality water sources regularly, wastes time and energy, wastes high-quality water source, influences whole filtration system's normal operating. Secondly, in the back flush process, need pay close attention to the water level of filter cell body in real time, in case when the water level descends to the lower part in the filtering area, less filter material will fall into the water distribution area of below along with the water level descends, and the filter material loss is more. Moreover, as the filter body is longer and the water inlet is positioned on one side of the short edge of the filter body, the filter material is pushed to move towards the other side by the transverse thrust generated by the water flow at the water inlet in the rising process of the water body, so that the filter material on one side of the water inlet is thinner and the filter material on the other side is thicker, the thickness distribution of the filter material is extremely uneven, and the filtering effect is not uniform; and the water inlet is positioned at one side of the filter tank body, so that the water distribution is uneven.
Disclosure of Invention
Based on the above situation, the present invention provides an agitation type suspension filtration system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the stirring type suspension filtering system comprises a filtering tank communicated with a raw water channel, a back flush sludge discharge pipeline arranged on the filtering tank, and a purified water discharge unit arranged at the upper part of the filtering tank, wherein a water distribution top plate and a filtering plate in the filtering tank divide the filtering tank into a water distribution area, a filtering area and a purified water storage area from bottom to top, and a suspension filtering material is filled in the filtering area; a cleaning device used for cleaning the suspended filter material is arranged in the filter tank and comprises
The mounting part is erected at the top of the filtering tank; and
at least one cleaning mechanism comprising
A power source disposed on the mounting portion;
one end of the rotating piece is in transmission connection with the power output end of the power source, and the other end of the rotating piece extends downwards to the upper surface of the water distribution top plate;
the connecting part comprises a fixed connecting piece fixedly connected on the water distribution top plate and a rotating connecting piece arranged in the fixed connecting piece, and the bottom of the rotating piece is fixedly connected with the rotating connecting piece; and
the stirring part comprises at least one stirring component fixedly connected to the rotating component, each stirring component comprises a first workpiece and a second workpiece which are arranged in parallel, and the stirring part also comprises a plurality of third workpieces for connecting the first workpiece and the second workpiece together; the stirring assembly can also adopt the following structure: comprises a stirring piece fixedly connected on a rotating piece and a reinforcing piece fixedly connected on the stirring piece;
the power source drives the stirring piece to stir the water body in the filtering area through the rotating piece, the suspended filter materials in the water body rotate along with the water body and rub against each other, and the cleaned suspended particles are discharged through the back flush sludge discharge pipeline.
The installation part is a steel truss erected at the top of the filter tank.
The filtering tank comprises a tank body with a cylindrical structure and a sludge collecting hopper with a big top and a small bottom and a frustum-shaped structure, and a water supply pipeline of the original water channel extends to the water distribution area from a water inlet at the bottom of the sludge collecting hopper.
The back-flushing sludge discharge pipeline comprises a plurality of back-flushing discharge pipes communicated with the bottom wall of the sludge collecting hopper, and the back-flushing discharge pipes are of siphon structures with the same structure and are provided with siphon sections protruding upwards;
the backwashing sludge discharge pipeline also comprises a plurality of siphon breaking pipes, one end of each siphon breaking pipe is communicated with the top of the siphon section of the backwashing sludge discharge pipe, and the other end of each siphon breaking pipe extends downwards to the upper surface of the filter plate;
the height of the top end of the siphon section of the back flush discharge pipe is consistent with the height of the upper surface of the filter plate;
when the water level in the filter tank drops to the upper surface of the filter plate, air enters into one end of the siphon breaking pipe to break the vacuum of the backwashing discharge pipe, so that the backwashing discharge pipe stops draining.
The water purification discharging unit comprises an overflow weir arranged at the top of the inner side wall of the filter tank and an annular water outlet channel arranged at the upper part of the outer side wall of the filter tank, and a water outlet pipe for discharging filtered water is communicated with the bottom wall of the annular water outlet channel.
The water distribution top plate is uniformly provided with a plurality of water distribution holes with big top and small bottom and a circular truncated cone-shaped structure, and the aperture ratio of the water distribution holes on the water distribution top plate is more than 4%.
The filter plate is provided with a plurality of circles of mounting holes at intervals along the circumferential direction, each mounting hole is provided with a filter head, and the directions of water inlets and water outlets at the bottoms of the filter heads are opposite.
The invention has the advantages of ingenious structure, capability of ensuring the cleaning effect of the suspended filter material, realizing uniform water distribution, avoiding the problem of larger thickness difference of the suspended filter material due to nonuniform water distribution, ensuring uniform thickness of the suspended filter material, realizing sludge discharge during backwashing, avoiding the need of specially cleaning bottom silt, saving time, saving clean water and further improving the filtering efficiency. The concrete points are as follows:
1) the cleaning mechanism is arranged in the filter tank, the installation number of the cleaning mechanism can be flexibly adjusted according to actual conditions, and when the cleaning mechanism works, the stirring component with the frame structure pushes the water body and the suspended filter material in the filter area to perform radial flow and annular flow, so that all beads of the suspended filter material are fully rubbed, the removal capacity of fine impurities is improved, and the cleaning effect of the filter material is improved.
2) The bottom of the filter tank is a sludge collecting hopper with a large upper part and a small lower part, and the water inlet is positioned at the center of the bottom wall of the sludge collecting hopper, namely, the invention adopts a bottom center water inlet mode, and water flows uniformly after overflowing from the water inlet pipe to the periphery, so that the water level in the filter tank stably rises, and uniform water distribution is realized; the stress of the water flow on the plane is uniform, so that the impact of the water flow on the filter material is reduced, the phenomenon that the thickness difference of the filter material is large due to uneven water distribution is effectively avoided, and the filter effect is further ensured.
Simultaneously, the unique structure of filtering ponds makes impurity such as silt that holds back down can directly flow into the back flush delivery pipe at back flush in-process, has realized the synchronous processing of the back flush of filter material and the sediment outflow operation, and then need not to wash the bottom of filtering ponds again, practices thrift the clean water, labour saving and time saving, and filtration efficiency is high.
3) The backwashing discharge pipe is processed into a siphon structure, and the vacuum of the backwashing discharge pipe is broken by the siphon breaking pipe in the backwashing process, so that the water level in the filter tank does not drop when the water level drops to the filter plate, the phenomenon that small particles of suspended filter materials drop to a water distribution area due to too low water level is effectively avoided, and the loss of the filter materials is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the cleaning apparatus of the present invention.
FIG. 3 is a connection diagram of the filter tank and the backwash sludge discharge pipe.
Fig. 4 is a diagram of the arrangement of filter heads on a filter plate according to the invention.
Fig. 5 is a first arrangement of the cleaning device of the present invention.
Fig. 6 is another arrangement of the cleaning apparatus of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the stirring type suspension filtration system of the present invention comprises a filtration tank communicated with a raw water channel, a back flush sludge discharge pipeline arranged on the filtration tank, and a purified water discharge unit arranged on the upper part of the filtration tank;
the filter tank comprises a tank body 1.1 in a cylindrical structure and a sludge collecting hopper 1.2 which is large at the top and small at the bottom and is in a frustum-shaped structure, a water distribution top plate 2 is horizontally arranged at the bottom of the tank body 1.1, a filter plate 3 is horizontally arranged on the tank body 1.1 above the water distribution top plate 2, and the distance between the water distribution top plate 2 and the filter plate 3 is about 2 m; the water distribution top plate 2 and the filter plate 3 divide the filter tank into a water distribution area A, a filter area B and a clear water storage area C from bottom to top, the filter area B is filled with a suspension filter material with the thickness of about 0.8-1.2 m, the suspension filter material is white bead-shaped polystyrene, the diameter of the suspension filter material is 0.9-1.1mm, the relative density of the suspension filter material is about 1.05, and the apparent density of the beads is 20-60 kg/m3；
The purified water discharge unit comprises an overflow weir (in a triangular structure) arranged at the top of the inner side wall of the tank body 1.1 and an annular water outlet channel 4.1 arranged at the upper part of the outer side wall of the tank body 1.1, the bottom wall of the annular water outlet channel 4.1 is communicated with a water outlet pipe 4.2, and the filtered water body is discharged to the next procedure or directly discharged into systems such as a river channel, a lake and the like;
as shown in fig. 1 and 3, a water inlet is formed in the center of the bottom of the sludge collection bucket 1.2, a water supply pipeline 5 of an original water channel extends from the water inlet to the position below the water distribution top plate 2, and a water outlet of the water supply pipeline 5 extends upwards to the lower surface of the water distribution top plate 2, so that uniform water distribution is ensured; the sludge collecting hopper 1.2 is structurally designed, so that water in an original ditch enters a water distribution area in a bottom center water inlet mode, and water flowing out of a water inlet pipe uniformly flows to the periphery, so that the water level in a filter tank stably rises, and uniform water distribution is realized;
as shown in fig. 1-2, a cleaning device for cleaning suspended filter materials is arranged in the filter tank, and comprises a steel truss 6 erected at the top of the filter tank 1.1 and a cleaning mechanism arranged on the steel truss 6;
the cleaning mechanism comprises
The power source comprises a motor 7.1 arranged on the steel truss 6 and a speed reducer 7.2 connected with the motor 7.1;
the top of the rotating shaft 7.3 is in transmission connection with a power output shaft of the speed reducer 7.2 through a coupler, the other end of the rotating shaft 7.3 downwards penetrates through the filter plate 3 and extends to the upper surface of the water distribution top plate 2, and the rotating shaft 7.3 is in clearance fit with the filter plate 3 or is in rotary connection with the filter plate 3 through a bearing;
the connecting part comprises a fixed connecting piece (namely a fixed support 7.4) fixedly connected on the water distribution top plate 2 and a bearing arranged in the fixed support 7.4, and the bottom of the rotating shaft 7.3 penetrates through the inner ring of the bearing; and
the stirring portion, the setting is on being located the pivot 7.3 of filtering area B, including a stirring subassembly (also can be two or three), the stirring subassembly is frame structure, including interval setting first work piece (be promptly on pivot 7.3 stirring rake 7.5) and second work piece (be promptly stirring rake 7.6 down), go up stirring rake 7.5 and lower stirring rake 7.6 horizontal interval and lay, go up stirring rake 7.5 and lower stirring rake 7.6 and link firmly together through the third work piece (be promptly connecting rod 7.7) of a plurality of vertical settings. Of course, in actual processing, the stirring component can also be a stirring plate arranged on the rotating shaft and reinforcing ribs longitudinally arranged on the stirring plate at intervals.
When the stirring mechanism works, the motor 7.1 drives the stirring component to stir the water body and the suspended filter material in the filtering area B through the rotating shaft 7.3, and the stirring component pushes the water body and the suspended filter material to flow radially and annularly, so that the beads of the suspended filter material are fully rubbed, the removing capacity of fine impurities is improved, and the cleaning effect of the filter material is improved.
In actual installation, the cleaning mechanism can be one, as shown in fig. 1 and 5 in particular; the number of the cleaning mechanisms can be two; the number of the cleaning mechanisms can be three; the cleaning mechanism can be four, and particularly, as shown in fig. 6, the steel truss 6 is correspondingly of a cross-shaped structure so as to be convenient to install.
As shown in fig. 1 and 3, the back-flushing sludge discharge pipeline comprises four back-flushing discharge pipes 8.1 respectively communicated with the bottom wall of the sludge collecting hopper 1.2, and the four back-flushing discharge pipes 8.1 are of siphon structures with the same structure and are provided with siphon sections protruding upwards;
the back flush sludge discharge pipeline also comprises siphon damage pipes 8.2 which are in one-to-one correspondence with the back flush discharge pipes 8.1, one end of each siphon damage pipe 8.2 is communicated with the top of the siphon section of the back flush discharge pipe 8.1, and the other end of each siphon damage pipe extends downwards to the upper surface of the filter plate 3;
the height of the top end of the siphon section of the back flush discharge pipe 8.1 is consistent with that of the upper surface of the filter plate 3;
in the back flushing process, when the water level of the clear water storage area C is lowered to the upper surface of the filter plate 3, air enters the siphon breaking pipe 8.2 to break the vacuum of the back flushing discharge pipe 8.1, the siphon phenomenon occurs, the water level is not lowered any more when the water level is lowered to the position of the filter plate 3, the water drainage is stopped, and the probability of the loss of the suspended filter material is reduced.
As shown in fig. 1, a water supply valve 5.1 is arranged on the water supply pipeline 5, a drain valve 8.3 is arranged on the backwash discharge pipe 8.1, the water supply valve 5.1 and the drain valve 8.3 can be manual valves or electric control valves controlled by a single chip microcomputer, and the control output end of the single chip microcomputer is connected with the control output end of the motor 7.1, namely the single chip microcomputer controls the motor 7.1 to be started and stopped, so as to realize the automatic cleaning of the filter material.
During actual processing, the water distribution top plate 2 is a circular plate with a structure consistent with that of the tank body 1.1, and water distribution holes 2.1 which are large in top and small in bottom and are in a circular truncated cone-shaped structure are uniformly distributed on the water distribution top plate 2, and are specifically shown in fig. 3; the open pore rate of the water distribution top plate 2 is more than 4 percent calculated by the bottom surface area of the water distribution holes 2.1; wherein, every joins in marriage the top diameter of water hole 2.1 and be about 15mm, and its bottom diameter is about 6mm, and the water is when getting into to join in marriage water hole 2.1, and the structure that joins in marriage water hole 2.1 big-end-up can increase the resistance that the water flows upwards, slows down the velocity of flow, ensures that the water stably rises, and then guarantees evenly distributed water.
In actual processing, the filter plate 3 is of a circular structure consistent with the structure of the tank body 1.1, six circles of mounting holes (the aperture ratio is 5%) are uniformly formed in the filter plate 3 along the circumferential direction of the filter plate, the first circle, the second circle, the third circle, the fourth circle, the fifth circle and the sixth circle are sequentially formed from inside to outside, and a filter head is arranged in each mounting hole; as shown in fig. 4, the water inlet and outlet ports at the bottom of the filter heads of the first, third and fifth rings are directed to the outer circumference of the filter plate 3, and the water inlet and outlet ports at the bottom of the filter heads of the second, fourth and sixth rings are directed to the center of the filter plate 3.
The filtration process of the suspension filtration system of the invention is as follows:
during filtering, a water supply valve 5.1 is manually opened (or controlled by a PLC), a drain valve 8.3 is closed, water in the original ditch enters a water distribution area A through a water supply pipeline 5, the water enters a filtering area B after being uniformly distributed through a water distribution top plate 2, and the water level of the filtering area B stably rises; meanwhile, the suspended filter material in the filtering area B is continuously accumulated below the filter plate 3 under the action of buoyancy and is compacted together; the water body rises, namely the process of continuously extruding the suspended filter material, in the process of the water body penetrating through the suspended filter material, suspended particles (mainly sludge) in the water body are intercepted by the suspended filter material, the water body penetrating through the suspended filter material enters a clear water storage area C above through a filter head, when the water level of the clear water storage area C rises to the highest water level F, the water flows into a water outlet channel through an overflow weir, and then the water is discharged to the next procedure through a water outlet pipe 4.2 or directly discharged into the water body (such as lakes and rivers), so that the reverse filtering operation of the original water channel is completed.
The suspension filtration system of the present invention was subjected to pilot test as follows: when the hydraulic load is 8m3/m2h, when the sand content of inlet water is 680mg/L, the sand content of the water body filtered by the suspension filtration system is 180mg/L, and the removal rate of silt is 73.5 percent; when the hydraulic load is 8m3/m2And h, when the sand content of inlet water is 800mg/L, the sand content of the water body filtered by the suspension filtration system is 200 mg/L, and the removal rate of silt is 75%. The data show that the suspension filtration system of the present invention has a very good filtration effect.
After the suspension filter system works for a certain time, the suspension filter material is often required to be cleaned, and simultaneously, silt particles accumulated in the filter area B and the water distribution area A are discharged out of the filter tank, and the specific back washing process is as follows:
when the washing is started, the water level of the clear water storage area C is at the highest water level or close to the highest water level, the water supply valve 5.1 is manually (or under the control of a PLC) closed, the drain valve 8.3 and the motor 7.1 are opened, water in the clear water storage area C enters the filtering area B through an inlet and an outlet at the bottom of the filter head under the action of gravity, meanwhile, the stirring assembly is driven by the motor 7.1 to rotate, the stirring assembly pushes the water and the suspended filter material to radially flow and circularly flow, so that the beads of the suspended filter material are fully rubbed, the removal capacity of fine impurities is improved, and the cleaning effect of the filter material is improved;
in the flushing process, impurities such as flushed sludge particles and the like are continuously discharged through the back flushing discharge pipe 8.1 under the action of the weight of water; when the water level drops to the upper surface of the filter plate 3, the siphon break pipe destroys the vacuum of the back flush discharge pipe 8.1, the back flush discharge pipe 8.1 stops draining outwards instantly, the water level in the filter tank also stops dropping, and the probability of filter material loss is reduced; then the motor 7.1 and the drain valve 8.3 are closed, and the water supply valve 5.1 is opened to continue the filtering operation.
In the description of the present invention, it should be noted that the terms "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is also required that although the present invention employs the terms first, second, third, etc. to describe various information, the information should not be limited to the terms. These terms are only used to distinguish one type of information from another. For example, a first workpiece may also be referred to as a second workpiece, and similarly, a second workpiece may also be referred to as a first workpiece, without departing from the scope of the present invention.
Claims (7)
1. A stirring type suspension filtering system comprises a filtering tank communicated with a raw water channel, a back flush sludge discharge pipeline arranged on the filtering tank, and a purified water discharge unit arranged at the upper part of the filtering tank, wherein a water distribution top plate and a filtering plate in the filtering tank divide the filtering tank into a water distribution area, a filtering area and a purified water storage area from bottom to top, and suspension filtering materials are filled in the filtering area; the method is characterized in that: a cleaning device used for cleaning the suspended filter material is arranged in the filter tank and comprises
The mounting part is erected at the top of the filtering tank; and
at least one cleaning mechanism comprising
A power source disposed on the mounting portion;
one end of the rotating piece is in transmission connection with the power output end of the power source, and the other end of the rotating piece extends downwards to the upper surface of the water distribution top plate;
the connecting part comprises a fixed connecting piece fixedly connected on the water distribution top plate and a rotating connecting piece arranged in the fixed connecting piece, and the bottom of the rotating piece is fixedly connected with the rotating connecting piece; and
the stirring part comprises at least one stirring component fixedly connected to the rotating part, each stirring component comprises a first workpiece and a second workpiece which are arranged in parallel, and further comprises a plurality of third workpieces for connecting the first workpiece and the second workpiece together, or each stirring component comprises a stirring piece fixedly connected to the rotating part and a reinforcing piece fixedly connected to the stirring piece;
the power source drives the stirring piece to stir the water body in the filtering area through the rotating piece, the suspended filter materials in the water body rotate along with the water body and rub against each other, and the cleaned suspended particles are discharged through the back flush sludge discharge pipeline.
2. The agitated suspension filter system of claim 1, wherein: the installation part is a steel truss erected at the top of the filter tank.
3. The agitated suspension filter system of claim 1, wherein: the filtering tank comprises a tank body with a cylindrical structure and a sludge collecting hopper with a big top and a small bottom and a frustum-shaped structure, and a water supply pipeline of the original water channel extends to the water distribution area from a water inlet at the bottom of the sludge collecting hopper.
4. The agitated suspension filter system of claim 1, wherein: the back-flushing sludge discharge pipeline comprises a plurality of back-flushing discharge pipes communicated with the bottom wall of the sludge collecting hopper, and the back-flushing discharge pipes are of siphon structures with the same structure and are provided with siphon sections protruding upwards;
the backwashing sludge discharge pipeline also comprises a plurality of siphon breaking pipes, one end of each siphon breaking pipe is communicated with the top of the siphon section of the backwashing sludge discharge pipe, and the other end of each siphon breaking pipe extends downwards to the upper surface of the filter plate;
the height of the top end of the siphon section of the back flush discharge pipe is consistent with the height of the upper surface of the filter plate;
when the water level in the filter tank drops to the upper surface of the filter plate, air enters into one end of the siphon breaking pipe to break the vacuum of the backwashing discharge pipe, so that the backwashing discharge pipe stops draining.
5. The agitated suspension filter system of claim 1, wherein: the water purification discharging unit comprises an overflow weir arranged at the top of the inner side wall of the filter tank and an annular water outlet channel arranged at the upper part of the outer side wall of the filter tank, and a water outlet pipe for discharging filtered water is communicated with the bottom wall of the annular water outlet channel.
6. The agitated suspension filter system of claim 1, wherein: the water distribution top plate is uniformly provided with a plurality of water distribution holes with big top and small bottom and a circular truncated cone-shaped structure, and the aperture ratio of the water distribution holes on the water distribution top plate is more than 4%.
7. The agitated suspension filter system of claim 1, wherein: the filter plate is provided with a plurality of circles of mounting holes at intervals along the circumferential direction, each mounting hole is provided with a filter head, and the directions of water inlets and water outlets at the bottoms of the filter heads are opposite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010668914.0A CN111729357A (en) | 2020-07-13 | 2020-07-13 | Stirring formula suspension filtration system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010668914.0A CN111729357A (en) | 2020-07-13 | 2020-07-13 | Stirring formula suspension filtration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337149A (en) * | 2020-11-09 | 2021-02-09 | 黄河勘测规划设计研究院有限公司 | Circular suspension filtration system capable of continuously running |
| CN112546685A (en) * | 2020-11-09 | 2021-03-26 | 黄河勘测规划设计研究院有限公司 | High-efficiency filter material and suspension filter system using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112337149A (en) * | 2020-11-09 | 2021-02-09 | 黄河勘测规划设计研究院有限公司 | Circular suspension filtration system capable of continuously running |
| CN112546685A (en) * | 2020-11-09 | 2021-03-26 | 黄河勘测规划设计研究院有限公司 | High-efficiency filter material and suspension filter system using same |
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