CN111569515B - Building sewage treatment plant capable of automatically cleaning filter screen - Google Patents
Building sewage treatment plant capable of automatically cleaning filter screen Download PDFInfo
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- CN111569515B CN111569515B CN202010633344.1A CN202010633344A CN111569515B CN 111569515 B CN111569515 B CN 111569515B CN 202010633344 A CN202010633344 A CN 202010633344A CN 111569515 B CN111569515 B CN 111569515B
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- filter screen
- barrel
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- liquid inlet
- rotating shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D33/54—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/803—Accessories in which the filtering elements are moved between filtering operations ; Particular measures for removing or replacing the filtering elements; Transport systems for filters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a building sewage treatment device capable of automatically cleaning a filter screen, which solves the problems that the filter screen is easy to block and the sewage treatment efficiency is influenced in the prior art; the technical scheme includes that the device comprises an outer barrel, an inner barrel is arranged in the outer barrel, a partition plate is arranged in the middle of the inner barrel, a rotating shaft is arranged on the inner barrel, a first filter screen is arranged on the rotating shaft, discharge ports are formed in the lower ends of the inner barrel and the outer barrel, a trigger device is arranged between the partition plate and the first filter screen, a barrel is arranged below the outer barrel, a second filter screen is arranged at the bottom of the barrel, a fan-shaped gap is formed in the second filter screen, and a push plate is arranged in the barrel; the inner barrel and the outer barrel are provided with liquid inlet channels, the inner barrel is provided with a liquid inlet groove, the inner barrel is provided with an arc-shaped baffle, sewage flows out from a discharge hole through a first filter screen in an interval when the liquid inlet groove is opened and then closed, and the first filter screen shakes and shakes sand off in the interval when the liquid inlet groove is closed and is opened next time and is discharged from a fan-shaped gap; the invention has novel conception, smart structure and strong practicability.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a building sewage treatment device capable of automatically cleaning a filter screen.
Background
A large amount of sewage of the construction site is generated in the construction site, the sewage often contains a large amount of substances such as silt and broken stones, and if the sewage is directly discharged into a river channel or surface water, the river channel is silted; in the prior art, the adopted sewage treatment device mainly has two types: firstly, the simple sedimentation tank naturally sediments the substances such as sand and stone by virtue of the large sedimentation tank, so that the occupied area is large, the sedimentation time is long, the treatment effect is poor, and the environmental-friendly discharge standard is difficult to achieve; the other method is to arrange a sewage treatment device and remove impurities such as silt through a filter screen, and the method has the problem that the filter screen is easy to block due to fine sand and water, so that the filter screen needs to be continuously cleaned, and the treatment efficiency of the building sewage is influenced.
Disclosure of Invention
In view of the above situation, in order to solve the problems in the prior art, the invention aims to provide a building sewage treatment device capable of automatically cleaning a filter screen, and solve the problems that the filter screen is easy to block and the sewage treatment efficiency is affected in the prior art.
The technical scheme for solving the problem is as follows: the device comprises an outer barrel horizontally placed in the left and right direction, an inner barrel coaxial with the outer barrel is sleeved in the outer barrel, a vertical partition plate is arranged in the middle of the inner barrel and divides the inner barrel into a left cavity and a right cavity, a rotating shaft coaxial with the inner barrel and capable of rotating around the axis of the rotating shaft is arranged on the inner barrel, a plurality of radial first filter screens are uniformly distributed on the rotating shaft of each cavity in a circumferential manner, the first filter screens can rotate along with the rotating shaft and can rotate around the rotating shaft and be fixed at one end of the rotating shaft and reset, the first filter screens in the cavities at the left side and the right side of the partition plate are arranged in a staggered manner, the lower ends of the inner barrel and the outer barrel are provided with through holes communicated up and down, the two through holes form a discharge port, a trigger device capable of shaking the first filter screens is arranged between the partition plate and the first filter screens, and a barrel with an upward opening is respectively arranged at the left side and the right side of the outer barrel, the bottom of the barrel is provided with a second filter screen, each second filter screen is provided with a fan-shaped notch far away from the discharge hole, and the inner circumference of the barrel is uniformly provided with a plurality of vertical push plates capable of rotating around the axis of the barrel;
the inner barrel and the outer barrel above the partition board are both provided with a through groove, the two through grooves are communicated and form a liquid inlet channel, the inner walls of the inner barrels at the left side and the right side of the partition board are both provided with a liquid inlet groove, the liquid inlet channel is communicated with the liquid inlet grooves at the left side and the right side, the inner wall of the inner barrel close to the liquid inlet groove is provided with an arc baffle placed in the left direction and the right direction, the arc baffle can rotate around one end fixed on the inner barrel and can reset, the arc baffle can rotate upwards to close the liquid inlet groove, and the arc baffle can reset downwards to open the liquid inlet groove; the pivot drives first filter screen and rotates, the cowl in the first filter screen and the baffle left and right sides contacts in turn or breaks away from, cowl makes the feed liquor groove of the baffle left and right sides closed in turn or open, in the interval that the feed liquor groove was opened and was closed afterwards, sewage filters through the first filter screen of cowl rear side in getting into the cavity through the feed liquor groove of opening, sewage flows by the discharge gate, in the interval that the feed liquor groove was closed and was opened next time, a first filter screen and the trigger device contact that are located the pivot below, trigger device makes this first filter screen take place to shake and shake off the sand, the sand falls on the second filter screen through the discharge gate, the push pedal rotates and makes the sand discharge by fan-shaped breach department.
The invention has novel concept, smart structure and strong practicability, can realize the effective separation of water and silt, prevents the blockage of the filter screen and greatly improves the sewage treatment efficiency.
Drawings
FIG. 1 is a front sectional view of the present invention in use.
Fig. 2 is a left side sectional view of the invention of fig. 1 with drum a removed.
Fig. 3 is a left side sectional view of the invention of fig. 1 with drum B removed.
Fig. 4 is a partial enlarged view of the invention at C in fig. 3.
Figure 5 is a perspective view of the push plate and barrel connection of the present invention.
Fig. 6 is a perspective view of the arcuate plate of the present invention disengaged from the arcuate slot.
Fig. 7 is a perspective view of the connection between the first filter 9 and the rotating shaft according to the present invention.
FIG. 8 is a front sectional view of the inner barrel of the present invention.
FIG. 9 is a front sectional view of the squeegee of the invention.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
As shown in figures 1 to 9, the invention comprises an outer barrel 1 horizontally placed in the left-right direction, an inner barrel 2 coaxial with the outer barrel 1 is sleeved in the outer barrel 1, a vertical clapboard 3 is arranged in the middle of the inner barrel 2, the inner barrel 2 is divided into a left chamber and a right chamber by the clapboard 3, a rotating shaft 8 coaxial with the inner barrel 2 and capable of rotating around the axis of the rotating shaft is arranged on the inner barrel 2, a plurality of radial first filter screens 9 are uniformly distributed on the circumference of the rotating shaft 8 of each chamber, the first filter screens 9 can rotate along with the rotating shaft 8 and can rotate around one end fixed on the rotating shaft 8 and can reset, the first filter screens 9 in the chambers at the left side and the right side of the clapboard 3 are arranged in a staggered way, the lower ends of the inner barrel 2 and the outer barrel 1 are respectively provided with a through hole communicated with the upper part and the lower part, the two through holes form a discharge hole 10, a trigger device capable of shaking the first filter screens 9 is arranged between the clapboard 3 and the first filter screens 9, the left side and the right side of the outer barrel 1 are respectively provided with a barrel 12 which is positioned below the discharge port 10 and has an upward opening, the bottom of the barrel 12 is provided with a second filter screen 13, each second filter screen 13 is provided with a fan-shaped gap 14 far away from the discharge port 10, and the inner circumference of the barrel 12 is uniformly provided with a plurality of vertical push plates 15 which can rotate around the axis of the barrel 12;
the inner barrel 2 and the outer barrel 1 above the partition board 3 are both provided with a through groove, the two through grooves are communicated and form a liquid inlet channel 7, the inner walls of the inner barrel 2 at the left side and the right side of the partition board 3 are both provided with a liquid inlet groove 4, the liquid inlet channel 7 is communicated with the liquid inlet grooves 4 at the left side and the right side, the inner wall of the inner barrel 2 close to the liquid inlet groove 4 is provided with an arc-shaped baffle 6 placed in the left-right direction, the arc-shaped baffle 6 can rotate around one end fixed on the inner barrel 2 and can reset, the arc-shaped baffle 6 can rotate upwards to close the liquid inlet groove 4, and the arc-shaped baffle 6 resets downwards to open the liquid inlet groove 4; the pivot 8 drives first filter screen 9 and rotates, first filter screen 9 contacts or breaks away from with the cowl 6 of the 3 left and right sides of baffle in turn, cowl 6 makes feed liquor groove 4 of the 3 left and right sides of baffle closed or open in turn, in the interval that feed liquor groove 4 was opened and was closed afterwards, sewage gets into the cavity through open feed liquor groove 4 and filters through the first filter screen 9 of cowl 6 rear side, sewage flows out by discharge gate 10, in the interval that feed liquor groove 4 was closed and was opened next time, a first filter screen 9 that is located the pivot 8 below contacts with trigger device, trigger device makes this first filter screen 9 take place to shake and shake the sand and shake off, the sand falls on second filter screen 13 through discharge gate 10, push pedal 15 rotates and makes the sand discharge by fan-shaped breach 14 department.
In order to realize the rotation of the rotating shaft 8, the rotating shaft 8 is connected with the outer barrel 1 through a bearing, the motor is connected with the rotating shaft 8 through a speed reducer, the motor is started, and the motor can drive the rotating shaft 8 to rotate.
In order to realize that the first filter screen 9 can shake after contacting with the trigger device, two sleeves 16 are mounted on the rotating shaft 8, the sleeves 16 are bilaterally symmetrical about the partition plate 3, a connecting rod 18 is fixed at each of the left and right ends of each first filter screen 9, each connecting rod 18 is connected with the sleeve 16 through a fixing shaft 17, a torsion spring is mounted between each connecting rod 18 and the fixing shaft 17, one end of the torsion spring is fixed on each connecting rod 18, the other end of the torsion spring is fixed on the fixing shaft 17, the inner end of each connecting rod 18 is located at the position, close to the axis of the rotating shaft 8, of the fixing shaft 17, the trigger device comprises two fixing blocks 19 mounted on the partition plate 3, the fixing blocks 19 are respectively located at the left and right sides of the partition plate 3, and a fixing rod 20 inclining downwards is mounted below the rear side of each fixing block 19; when pivot 8 drove first filter screen 9 and the contact of dead lever 20, dead lever 20 shelters from connecting rod 18, and first filter screen 9 rotates around fixed axle 17 along with pivot 8 pivoted in time, and the torsional spring receives torsional deformation, and connecting rod 18 rotates to and breaks away from the back with dead lever 20, and under the effect of torsional spring torsion, the reverse violent rotation of first filter screen 9 resets, and the in-process of first filter screen 9 antiport can shake the silt on first filter screen 9 from first filter screen 9.
In order to realize that the arc baffle 6 can rotate around one end fixed on the inner wall of the inner barrel 2 and can reset, the inner wall of the bottom of each liquid inlet groove 4 is provided with an arc groove 5 which is coaxial with the inner barrel 2, the arc baffle 6 is connected with the front end of the arc groove 5 through a transverse shaft 21 in the left-right direction, a torsion spring is connected between the arc baffle 6 and the transverse shaft 21, one end of the torsion spring is fixed on the transverse shaft 21, the other end of the torsion spring is fixed on the arc baffle 6, the torsion spring is always in a twisted state, and the arc baffle 6 can rotate into the arc groove 5; the rotating shaft 8 drives the filter screen to rotate, the filter screen is in contact with the arc-shaped baffle 6 and pushes the arc-shaped baffle 6 to rotate, the torsion spring is subjected to torsional deformation, when the arc-shaped baffle 6 rotates into the arc-shaped groove 5, the liquid inlet groove 4 is closed, after the filter screen is separated from the arc-shaped baffle 6, the arc-shaped baffle 6 reversely rotates and resets under the action of torsion of the torsion spring, and after the arc-shaped baffle 6 is separated from the arc-shaped groove 5, the liquid inlet groove 4 is opened; after the 6 antiport resets, because the torsional spring still is in the state of being turned round, so under the effect of torsional spring torsion, the end of cowl 6 can with 8 in close contact with of pivot to can make when filtering, sewage can flow the region in cowl 6 rear through cowl 6, and can reduce the sewage from the volume that the gap of cowl 6 and pivot 8 flowed.
In order to reduce the scattering area of sand when the first filter screens 9 shake off the sand, a scraper 22 which has the same size as the first filter screens 9 and rotates synchronously with the first filter screens 9 is installed on the rotating shaft 8 at the rear side of each first filter screen 9, a sand collecting area is formed between each scraper 22 and the corresponding first filter screen 9, the size of the sand collecting area is far smaller than the space between two adjacent first filter screens 9, a plurality of conical through holes 23 are formed in each scraper 22, and the diameter of one side, close to the corresponding first filter screen 9, of each conical through hole 23 is smaller than the diameter of one side, far away from the corresponding first filter screen 9, of each conical through hole 23;
after the first filter screen 9 is separated from the trigger device, the first filter screen 9 is reversely and quickly reset and shakes off the sand on the first filter screen 9 to the discharge port 10, due to the existence of the scraper 22, the sand shaken off from the first filter screen 9 is concentrated in a sand collecting area formed by the first filter screen 9 and the subsequent scraper 22, the scattering space of the shaken off sand is reduced, namely the bonding area between the sand and the inner wall of the inner barrel 2 is reduced, and when the scraper 22 rotates, the sand bonded on the inner wall of the inner barrel in the sand collecting area is scraped to the discharge port 10;
due to the structure of the conical through holes 23, when filtering, sewage can flow onto the first filter screen 9 through the large-end diameter part of the conical through holes 23, so that the sewage can conveniently flow in, and because the diameter of the conical through holes 23 close to the corresponding first filter screen 9 is smaller than that of the conical through holes 23 far away from the corresponding first filter screen 9, the probability that sand passes through the conical through holes 23 can be greatly reduced by the small-diameter end of the conical through holes 23 in the process that the sand is shaken off from the first filter screen 9, so that the bonding area between the sand and the inner wall of the inner barrel 2 is reduced as much as possible;
when scraper blade 22 near discharge gate 10 department rotates and crosses discharge gate 10, the scraper blade 22 with cowl 6 contact breaks away from with cowl 6, and then cowl 6 rotates downwards and resets, and cowl 6 rotates downwards makes feed liquor groove 4 opened, begins again to carry out sewage and filters.
In order to realize the rotation of the push plate 15, a vertical shaft 24 coaxial with the barrel 12 is installed on the push plate 15, a support 25 is installed on the outer barrel 1, the vertical shaft 24 penetrates through the support 25 and is provided with a bearing with the support 25, and the rotating shaft 8 is connected with the vertical shaft 24 through a pair of bevel gears 26; the rotation of the rotating shaft 8 drives the vertical shaft 24 to rotate through the bevel gear 26, and the vertical shaft 24 drives the push plate 15 to rotate together.
Before the invention is used, a water receiving tank is arranged below a discharge port 10, a silt collecting barrel is arranged below a fan-shaped gap 14 of a second filter screen 13 at the left side and the right side of the water receiving tank, here, a left chamber is taken as an example to explain the using process of the invention, and an initial state is set; the first filter screen 9 in the left side chamber is far away from the arc baffle 6, at the moment, the arc baffle 6 in the left side chamber is separated from the arc groove 5, the free end of the arc baffle 6 is tightly contacted with the rotating shaft 8 under the action of torsional spring torsion of the arc baffle 6, and the liquid inlet groove 4 on the left side is opened; the first filter screen 9 in the right chamber is in contact with the arc-shaped baffle 6, the arc-shaped baffle 6 is positioned in the arc-shaped groove, and at the moment, the liquid inlet groove 4 in the right chamber is closed;
when the sewage filter is used, the motor is turned on, the motor rotates to drive the first filter screen 9 and the scraper 22 to rotate backwards together, unfiltered sewage is introduced into the liquid inlet groove 4, the sewage enters the cavity on the left side of the partition plate 3, the tail end of the arc-shaped baffle 6 on the left side is tightly contacted with the rotating shaft 8, the sewage enters the cavity on the left side and flows into the area on the rear side of the arc-shaped baffle 6 through the arc-shaped baffle 6, the sewage flows onto the scraper 22 close to the rear side of the arc-shaped baffle 6 and flows onto the first filter screen 9 close to the arc-shaped baffle 6 through the conical through hole 23, the sewage is filtered by the first filter screen 9, and the filtered sewage flows into the water receiving tank through the discharge hole 10; because the structure formed by a plurality of groups of first filter screens 9 and scraping plates 22 exists in the range from the rear side of the arc-shaped baffle 6 to the discharge hole 10, sewage can be subjected to multi-stage filtration through a plurality of layers of first filter screens 9;
the rotating shaft 8 rotates to drive the first filter screen 9 to rotate, when the next first filter screen 9 close to the arc baffle 6 in the left cavity is in contact with the arc baffle 6 and presses the arc baffle 6 to rotate into the arc-shaped groove 5, the left liquid inlet groove 4 is closed, after the left liquid inlet groove 4 is closed, the first filter screen 9 below the left rotating shaft 8 rotates to be in contact with the fixed rod 20, the fixed rod 20 shields the connecting rod 18, the first filter screen 9 rotates around the fixed shaft 17 along with the rotation of the rotating shaft 8, the torsion spring is subjected to torsional deformation, after the connecting rod 18 rotates to be separated from the fixed rod 20, under the action of the torsion spring torsion force, the first filter screen 9 reversely and violently rotates to reset, in the process of reversely and rapidly rotating the first filter screen 9, sand on the first filter screen 9 is shaken to fall into a sand collecting area formed by the filter screen and the following scraper 22, the rotating shaft 8 drives the filter screen and the scraper 22 to continuously rotate, when the scraper 22 rotates, the sand adhered to the inner wall of the inner cylinder in the sand collecting area is scraped to the discharge hole 10;
silt falls into an interval formed by two adjacent push plates 15 and a barrel 12 below an outlet on a second filter screen 13 through a discharge port 10, and it is worth noting that the number of the push plates 15 corresponds to that of the first filter screen 9 one by one, the rotating shaft 8 continuously drives the first filter screen 9 to rotate so that the silt on the first filter screen 9 falls into the second filter screen 13, the liquid inlet tank 4 is opened again, when sewage treatment is started, the push plates 15 push away the silt to an area deviating from the discharge port 10, and the second filter screen 13 is ensured to have no silt when the treated sewage passes through the second filter screen 13; along with the rotation of pivot 8, pivot 8 drives vertical axis 24 and rotates, and push pedal 15 constantly pushes away silt from the fan-shaped breach 14 department of second filter screen 13, falls into in the silt collecting box through fan-shaped breach 14.
It should be noted that: after the first filter screen 9 is separated from the fixed rod 20, the first filter screen 9 is reversely and quickly reset and shakes off the sand on the first filter screen 9 to the discharge hole 10, due to the existence of the scraper 22, the sand shaken off from the first filter screen 9 is concentrated in a sand collecting area formed by the first filter screen 9 and the subsequent scraper 22, the scattering space of the shaken off sand is reduced, namely the bonding area between the sand and the inner wall of the inner barrel 2 is reduced, and when the scraper 22 rotates, the sand bonded on the inner wall of the inner barrel in the sand collecting area is scraped to the discharge hole 10;
due to the structure of the conical through holes 23, when filtering, sewage can flow onto the first filter screen 9 through the large-end diameter part of the conical through holes 23, so that the sewage can conveniently flow in, and because the diameter of the conical through holes 23 close to the corresponding first filter screen 9 is smaller than that of the conical through holes 23 far away from the corresponding first filter screen 9, the probability that sand passes through the conical through holes 23 can be greatly reduced at the small-diameter end in the process that the sand is shaken off from the first filter screen 9, so that the bonding area between the sand and the inner wall of the inner barrel 2 is reduced as much as possible;
after pivot 8 drives scraper blade 22 that is located discharge gate 10 vicinity and leaves discharge gate 10, pivot 8 drives first filter screen 9 and continues to rotate with scraper blade 22, first filter screen 9 and scraper blade 22 with cowl 6 contact break away from with cowl 6 in proper order, scraper blade 22 breaks away from the back with cowl 6, cowl 6 rotates under the effect of torsional spring torsional force, cowl 6 rotates end and 8 in close contact with of pivot once more, the feed liquor groove 4 of left side cavity is opened once more, sewage is the region of 6 rear sides of cowl by cowl 6 flow once more, continue to carry out sewage and filter.
The rotating shaft 8 drives the filter screen and the scraper 22 to rotate, when the arc baffle 6 on the left side is positioned in the arc-shaped groove 5, the arc baffle 6 shields the liquid inlet groove 4 on the left side, when the liquid inlet groove 4 on the left side is closed, the scraper 22 on the right side of the partition plate 3 is just separated from the arc baffle 6 on the right side, the arc baffle 6 on the right side rotates under the action of torsional spring torsion, so that the liquid inlet groove 4 on the right side is opened, as the liquid inlet channel 7 is communicated with the liquid inlet grooves 4 on the left side and the right side, and the sand receiving grooves on the left side and the right side of the partition plate 3, the first filter screen 9, the scraper 22 and other structures are relatively independent, sewage can flow into the cavity on the right side of the partition plate 3, the sewage is filtered in the cavity on the right side, and the subsequent sand is separated; because the first filter screens 9 on the left side and the right side of the partition board 3 are alternately arranged, silt on the first filter screens 9 is shaken off in the left side chamber under the action of the fixing rod 20 in a time interval when the liquid inlet tank 4 in the left side chamber is closed and opened next time, the scraper 22 transfers the silt out of the inner barrel 2, the liquid inlet tank 4 in the right side chamber is in an opened state, and sewage is treated, otherwise, the silt on the first filter screens 9 is shaken off and transferred to the second filter screens 13 in the time interval when the liquid inlet tank 4 in the right side chamber is closed and opened next time, and the liquid inlet tank 4 in the left side chamber is in an opened state under the action of the fixing rod 20, so that sewage is treated; the sewage treatment is carried out alternately by the left chamber and the right chamber, so that the sewage treatment efficiency can be improved.
So, pivot 8 constantly rotates, and the feed liquor groove 4 of the left and right sides is opened in turn, carries out the filtration of sewage, and the silt on sewage and the filter screen that is handled separates in proper order and discharges.
It should be noted that the tapered holes formed in the scraper 22 can ensure that sewage can smoothly flow into the first filter screen 9 during filtering, and when the first filter screen 9 shakes, the diameter of the tapered hole near the first filter screen 9 is smaller, so that silt can be reduced to shake out of the scraper 22;
secondly, the arrangement of the above parts is explained by taking the case that the rotating shaft 8 rotates backwards as an example, when the rotating shaft 8 rotates backwards, the transverse shaft 21 of the arc-shaped baffle 6 is arranged at the rear side of the liquid inlet tank 4, the arc-shaped baffle 6 rotates around the rear end, the scraping plates 22 are symmetrically arranged at the front side of the corresponding filter screen, and the fixed rod 20 is arranged at the front side of the discharge port 10;
in order to prolong the service life of the scraper 22 and the inner barrel 2 and prevent the scraper 22 from scratching the inner barrel 2 in the rotation process, a layer of sponge strip can be adhered to the end part of the scraper 22 close to the inner barrel 2, and in the sand scraping process of the scraper 22, the sponge strip can better remove sand on the wall of the inner barrel 2, reduce the hard friction between the scraper 22 and the inner barrel 2 and prevent the inner barrel 2 from being scratched due to the existence of the sand between the wall of the inner barrel 2 and the scraper 22;
the tip of push pedal 15 lower extreme and the contact of second filter screen 13 set up to the brush, conveniently clear away the silt on the second filter screen 13.
According to the invention, through the cooperation of the arc-shaped baffle 6 and the plurality of first filter screens 9 uniformly distributed on the circumference, when the liquid inlet tank 4 is opened by the arc-shaped baffle 6, sewage can be filtered by the first filter screens 9 in multiple layers, silt is discharged out of the barrel after the liquid inlet tank 4 is closed by the first filter screens 9, so that the effective separation of the water and the silt in the sewage is realized, the silt on the first filter screens 9 is continuously discharged, the blockage of the first filter screens 9 is prevented, the difficulty in manually cleaning the filter screens is reduced, and the efficiency of sewage treatment is improved.
According to the invention, through the matching action of the pin, the scraper 22 and the first filter screen 9, the first filter screen 9 can shake under the action of the pin at the position where the first filter screen 9 passes through the discharge hole 10, so that silt on the first filter screen 9 is shaken out, the first filter screen 9 does not need to be cleaned manually, and the operation intensity of an operator is reduced.
The invention divides the inner barrel 2 into a left chamber and a right chamber by arranging the clapboard 3 in the inner barrel 2, and the left side and the right side alternately filter sewage, thereby improving the sewage treatment efficiency.
According to the invention, under the matching action of the second filter screen 13 and the push plate 15, the water in the silt can be filtered again after the silt is separated from the water, so that the water content of the silt is reduced, and the subsequent work of silt transportation and the like is facilitated.
The invention has novel concept, smart structure and strong practicability, can realize the effective separation of water and silt, prevents the blockage of the filter screen and greatly improves the sewage treatment efficiency.
Claims (5)
1. A building sewage treatment device capable of automatically cleaning filter screens is characterized by comprising an outer barrel (1) horizontally placed in the left-right direction, an inner barrel (2) coaxial with the outer barrel (1) is sleeved in the outer barrel (1), a vertical partition plate (3) is arranged in the middle of the inner barrel (2), the inner barrel (2) is divided into a left cavity and a right cavity by the partition plate (3), a rotating shaft (8) coaxial with the inner barrel (2) and capable of rotating around the axis of the rotating shaft is arranged on the inner barrel (2), a plurality of radial first filter screens (9) are uniformly distributed on the rotating shaft (8) of each cavity in a circumferential direction, the first filter screens (9) can rotate along with the rotating shaft (8) and can rotate around the rotating shaft and can reset at one end fixed on the rotating shaft (8), the first filter screens (9) in the cavities on the left side and the right side of the partition plate (3) are arranged in a staggered mode, the lower ends of the inner barrel (2) and the outer barrel (1) are provided with through holes communicated up and down, the two through holes form a discharge hole (10), a trigger device capable of shaking the first filter screen (9) is arranged between the partition plate (3) and the first filter screen (9), a round barrel (12) which is positioned below the discharge hole (10) and has an upward opening is respectively arranged on the left side and the right side of the outer barrel (1), a second filter screen (13) is arranged at the bottom of the round barrel (12), each second filter screen (13) is provided with a fan-shaped notch (14) far away from the discharge hole (10), and a plurality of vertical push plates (15) capable of rotating around the axis of the round barrel (12) are uniformly distributed on the inner circumference of the round barrel (12);
the inner barrel (2) and the outer barrel (1) above the partition plate (3) are both provided with a through groove, the two through grooves are communicated and form a liquid inlet channel (7), the inner walls of the inner barrel (2) at the left side and the right side of the partition plate (3) are both provided with a liquid inlet groove (4), the liquid inlet channel (7) is communicated with the liquid inlet grooves (4) at the left side and the right side, the inner wall of the inner barrel (2) close to the liquid inlet groove (4) is provided with an arc baffle (6) placed in the left-right direction, the arc baffle (6) can rotate around one end fixed on the inner barrel (2) and can reset, the arc baffle (6) can rotate upwards to close the liquid inlet groove (4), and the arc baffle (6) can reset downwards to open the liquid inlet groove (4); the rotating shaft (8) drives the first filter screen (9) to rotate, the first filter screen (9) is in alternate contact with or separated from the arc-shaped baffles (6) on the left side and the right side of the partition board (3), the arc-shaped baffles (6) enable the liquid inlet grooves (4) on the left side and the right side of the partition board (3) to be alternately closed or opened, in the interval that the liquid inlet grooves (4) are opened and then closed, sewage enters the chamber through the opened liquid inlet grooves (4) and is filtered through the first filter screen (9) on the rear side of the arc-shaped baffles (6), the sewage flows out from the discharge port (10), in the interval that the liquid inlet grooves (4) are closed and are opened next time, the first filter screen (9) positioned below the rotating shaft (8) is in contact with the trigger device, the trigger device enables the first filter screen (9) to shake and shake sand, and the sand falls onto the second filter screen (13) through the discharge port (10), the push plate (15) rotates to discharge the sand from the fan-shaped notch (14);
every pivot (8) of first filter screen (9) rear side on all install one with first filter screen (9) size the same and with first filter screen (9) synchronous pivoted scraper blade (22), scraper blade (22) form a sand collection region rather than between the first filter screen (9) that corresponds, the sand collection region is far less than the space size between two adjacent first filter screens (9), a plurality of toper through-holes (23) have been seted up on scraper blade (22), the diameter that toper through-hole (23) are close to corresponding first filter screen (9) one side is less than the diameter of keeping away from corresponding first filter screen (9) one side.
2. The device for treating the building sewage capable of automatically cleaning the filter screen according to claim 1, wherein the rotating shaft (8) is connected with the outer barrel (1) through a bearing, and the motor is connected with the rotating shaft (8) through a speed reducer.
3. The building sewage treatment device capable of automatically cleaning the filter screen according to claim 1, wherein the rotating shaft (8) is provided with two sleeves (16), the sleeves (16) are bilaterally symmetrical about the partition board (3), the left end and the right end of each first filter screen (9) are respectively fixed with a connecting rod (18), each connecting rod (18) is connected with the sleeve (16) through a fixed shaft (17), a torsion spring is arranged between the connecting rod (18) and the fixed shaft (17), one end of the torsion spring is fixed on the connecting rod (18), the other end of the torsion spring is fixed on the fixed shaft (17), the inner end of the connecting rod (18) is positioned at the inner side of the fixed shaft (17) close to the axis of the rotating shaft (8), the trigger device comprises two fixed blocks (19) arranged on the partition board (3), the fixed blocks (19) are respectively positioned at the left side and the right side of the partition board (3), a fixing rod (20) which inclines downwards is arranged below the rear side of the fixing block (19).
4. The building sewage treatment device capable of automatically cleaning the filter screen according to claim 1, wherein an arc-shaped groove (5) coaxial with the inner barrel (2) is formed in the inner wall of the bottom of each liquid inlet groove (4), the arc-shaped baffle (6) is connected with the front end of the arc-shaped groove (5) through a transverse shaft (21) in the left-right direction, a torsion spring is connected between the arc-shaped baffle (6) and the transverse shaft (21), one end of the torsion spring is fixed on the transverse shaft (21), the other end of the torsion spring is fixed on the arc-shaped baffle (6), the torsion spring is always in a twisted state, and the arc-shaped baffle (6) can rotate into the arc-shaped groove (5); pivot (8) drive the filter screen and rotate, the filter screen rotates with cowl (6) contact and promotion cowl (6), the torsional spring receives torsional deformation, cowl (6) rotate in arc wall (5) when for feed liquor groove (4) are closed, the filter screen breaks away from cowl (6) back, under the effect of torsional spring torsional force, cowl (6) antiport resets, break away from arc wall (5) back when cowl (6), feed liquor groove (4) are opened.
5. The building sewage treatment device capable of automatically cleaning the filter screen according to claim 1, wherein a vertical shaft (24) coaxial with the barrel (12) is installed on the push plate (15), a support (25) is installed on the outer barrel (1), the vertical shaft (24) penetrates through the support (25) and a bearing is installed between the vertical shaft and the support (25), and the rotating shaft (8) is connected with the vertical shaft (24) through a pair of bevel gears (26).
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| CN202010633344.1A CN111569515B (en) | 2020-07-04 | 2020-07-04 | Building sewage treatment plant capable of automatically cleaning filter screen |
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| CN202010633344.1A CN111569515B (en) | 2020-07-04 | 2020-07-04 | Building sewage treatment plant capable of automatically cleaning filter screen |
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| CN111569515B true CN111569515B (en) | 2021-10-22 |
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