Disclosure of Invention
The invention aims to provide a multi-stage sewage treatment device and a multi-stage sewage treatment process, which solve the problems in the background technology.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
The utility model provides a multistage sewage treatment device, includes two first treatment ponds, second treatment pond and sedimentation tank, and two first treatment ponds set up side by side and all communicate there is the sewage pipe, two first treatment ponds all communicate with the bottom of second treatment pond, be provided with pumping device on the second treatment pond, pumping device is used for pumping the sewage in the second treatment pond to the sedimentation tank in, every the top of first treatment pond all is provided with elevating gear, every elevating gear is last all to be connected with the grid tray separation structure that is used for sieving large granule solid impurity, just grid tray separation structure is located when corresponding first treatment pond, have the clearance between grid tray separation structure and the inner wall of first treatment pond, every all be provided with on the inside wall of first treatment pond and shelter extending structure, just shelter extending structure is used for sealing the clearance between grid tray separation structure and the first treatment pond inner wall to outside the motion path of grid tray separation structure when grid tray separation structure reciprocates, two shelter extending structure is high in two first treatment ponds sets up and down differently;
The second treatment tank is internally provided with a filtering structure, the sedimentation tank is internally provided with a heating device and a moving device, the moving device is provided with a scraping structure, and the scraping structure is used for scraping the sediment and solidified impurities on the heating device.
As a preferable scheme of the invention, the lifting device comprises a gear which is rotatably arranged at the top edge of the first treatment tank through a support plate, the gear is meshed with a toothed plate, the top of the first treatment tank is provided with a lifting groove and a plurality of sliding grooves, the toothed plate is slidably connected in the lifting groove, the sliding grooves are symmetrically arranged at the top of the first treatment tank and are slidably connected with a lifting bracket together, and the toothed plate is fixedly connected with one side of the lifting bracket.
As a preferable scheme of the invention, the grid plate separating structure comprises a plurality of connecting rods fixedly connected to the bottom of the lifting support, the connecting rods are equally divided into two groups and are symmetrical with respect to the central plane of the first treatment tank in the vertical direction, each group of connecting rods are horizontally and linearly arranged, grid plates for separating large-particle solid impurities are jointly and movably connected to the bottoms of the two groups of connecting rods, a plurality of outer walls on the periphery of the grid plates are respectively parallel to a plurality of vertical side walls in the first treatment tank, two positioning magnetic attraction blocks are symmetrically arranged on the grid plates, and the two positioning magnetic attraction blocks are respectively attracted with one of the two groups of connecting rods through magnetic force so as to limit the positions of the grid plates.
As a preferable scheme of the invention, two sliding strips are symmetrically arranged on the grid plate, one sides of the two groups of connecting rods, which are opposite, are respectively provided with a movable groove, each sliding strip is connected in the movable groove on one group of connecting rods in a sliding way, and the two positioning magnetic attraction blocks are respectively arranged at the tops of the two sliding strips and are respectively attracted with the outermost sides of each group of connecting rods.
As a preferable mode of the invention, the upper surface of the grid plate is wavy.
As a preferable scheme of the invention, the shielding extension structure comprises a plurality of winding assemblies and a plurality of shielding plates with the same height, each winding assembly is connected with the corresponding shielding plate through a connecting rope, a plurality of side walls in the first treatment tank are provided with winding grooves, the winding assemblies are respectively arranged in the corresponding winding grooves, the shielding plates are respectively and slidably connected to the notch of the winding grooves in a sealing manner, and can horizontally slide along the notch of the winding grooves to extend out of the first treatment tank, and one side, away from the interior of the first treatment tank, of each shielding plate is connected with a spring connected with the inner wall of the winding groove;
The shielding plates are located above the gaps between the grid plates and the inner wall of the first treatment tank after extending out of the first treatment tank, and the portions of the shielding plates located in the first treatment tank form an annular plate.
As a preferable scheme of the invention, the bottom of the shielding plate is provided with the barrier strips, the grid plate is provided with a plurality of isolation grooves which are connected with the barrier strips in a matching way, and the barrier strips form annular strips when being contacted with each other.
In order to solve the technical problems, the invention also provides a treatment process of the multi-stage sewage treatment equipment, which comprises the following specific steps:
S100, conveying the grid plate separating structure into the first treatment pool by one lifting device, extending the shielding extending structure into the first treatment pool, and controlling the grid plate separating structure to move upwards by the lifting device to prop against the bottom of the shielding extending structure;
s200, sewage is input into a corresponding first treatment tank through a sewage pipe, large-particle solid impurities are separated through a grid plate separation structure, and the sewage after the first treatment enters a second treatment tank;
S300, the sewage in the second treatment tank gradually rises in height and passes through the filtering structure, the sewage which passes through the filtering structure is pumped into the sedimentation tank through the pumping device, the heating device heats the sewage, and the scraping structure is driven by the moving device to scrape the sediment and solidified impurities on the heating device;
S400, when the grid plate separating structure is blocked by stacking large-particle solid impurities, the sewage pipe is closed, the shielding extending structure is separated from the upper part of the grid plate separating structure, the grid plate separating structure moves upwards to be separated from the first treatment pool through the lifting device so as to treat the large-particle solid impurities, and the other lifting device drives the corresponding grid plate separating structure to the other first treatment pool, so that sewage treatment is repeatedly performed according to the steps.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, the large-particle solid impurities in the first treatment tank are screened through the grid plate separation structure, so that the large-particle solid impurities are left above the grid plate separation structure, a gap between the grid plate separation structure and the inner side wall of the first treatment tank is closed through the shielding extension structure, sewage is prevented from directly crossing the grid plate separation structure and is not treated, so that the sewage treatment effect is prevented from being influenced, the shielding extension structure is positioned outside a movement path of the grid plate separation structure in the up-and-down movement process of the grid plate separation structure, interference on the movement of the grid plate separation structure is avoided, and the solid particle impurities attached to the inner side wall of the first treatment tank cannot influence the movement of the grid plate separation structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic diagram of a multi-stage sewage treatment apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of a multi-stage sewage treatment apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic side sectional view of a multi-stage sewage treatment apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic top sectional view of a multi-stage sewage treatment apparatus according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of the portion A shown in FIG. 3 according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of the structure of portion B shown in FIG. 4 according to an embodiment of the present invention;
FIG. 7 is a schematic view of a grid plate according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a shielding plate according to an embodiment of the invention.
Reference numerals in the drawings are respectively as follows:
1. A first treatment tank; 2, a second treatment tank, 3, a sedimentation tank, 4, a lifting device, 6, a grid plate separation structure, 7, a shielding extension structure, 8, a filtering structure, 10, a moving device, 11, and a scraping structure;
401. Gear, 402, toothed plate, 403, lifting groove, 404, sliding groove, 405, lifting bracket, 601, connecting rod, 602, grid plate, 603, positioning magnetic block, 604, sliding bar, 605, movable groove, 701, rolling component, 702, shielding plate, 703, rolling groove, 704, spring, 705, barrier bar, 706, and isolation groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
As shown in fig. 1 to 7, the present invention provides a multi-stage sewage treatment apparatus, which comprises two first treatment tanks 1, a second treatment tank 2 and a sedimentation tank 3, wherein the two first treatment tanks 1 are arranged in parallel and are all communicated with sewage pipes, the two first treatment tanks 1 are all communicated with the bottom of the second treatment tank 2, a pumping device is arranged on the second treatment tank 2 and is used for pumping sewage in the second treatment tank 2 into the sedimentation tank 3, a lifting device 4 is arranged at the top of each first treatment tank 1, a grid plate separation structure 6 for screening large-particle solid impurities is connected to each lifting device 4, when the grid plate separation structure 6 is positioned in the corresponding first treatment tank 1, a gap is reserved between the grid plate separation structure 6 and the inner wall of the first treatment tank 1, a shielding extension structure 7 is arranged on the inner side wall of each first treatment tank 1 and is used for sealing the gap between the grid plate separation structure 6 and the inner wall of the first treatment tank 1, and moves to the shielding path of the grid plate separation structure 6 when the grid plate separation structure 6 moves up and down, and the grid plate separation structure 6 moves to the outside the two shielding structures 1, and the two shielding extension structures are arranged at different heights;
the second treatment tank 2 is internally provided with a filtering structure 8, the sedimentation tank 3 is internally provided with a heating device and a moving device 10, the moving device 10 is provided with a scraping structure 11, and the scraping structure 11 is used for scraping the solidified impurities precipitated on the heating device.
When the sewage treatment device is used, sewage (potato starch sewage) is discharged into the corresponding first treatment tank 1 through one sewage pipe and is treated through the grid plate separation structure 6, so that large-particle solid impurities in the sewage are left on the upper surface of the grid plate separation structure 6, the treated sewage enters the second treatment tank 2 from the bottom of the second treatment tank 2 and is subjected to secondary treatment through the filtering structure 8, the sewage subjected to secondary treatment is positioned above the filtering structure 8 and is pumped into the sedimentation tank 3 through the pumping device, the sewage subjected to secondary treatment is heated by the heating device, starch in the sewage is caused to be precipitated, meanwhile, the scraping structure 11 is driven to reciprocate through the moving device 10 so as to scrape the starch attached to the surface of the heating device, the surface of the heating device is guaranteed to be clean, the problem that the starch is difficult to clean in the later period due to long-time consolidation on the surface of the heating device 10 is avoided, the scraping structure 11 can be used for cleaning impurities deposited on the surface of the heating device at the moment, and the heating device can be used as required.
When more large-particle solid impurities are accumulated on the surface of the grid plate separating structure 6, the treatment effect of the grid plate separating structure 6 on sewage can be affected, at the moment, the corresponding sewage pipe is closed, the shielding extending structure 7 moves out of the movement path of the grid plate separating structure 6, interference to the movement of the grid plate separating structure 6 is avoided, then the lifting device 4 drives the grid plate separating structure 6 to move upwards to the upper side of the first treatment tank 1, and then the large-particle solid impurities on the grid plate separating structure 6 can be treated.
Meanwhile, the other grid plate separating structure 6 synchronously moves downwards through the driving of the lifting device 4 until entering the corresponding depth of the first treatment tank 1, then the shielding extending structure 7 moves to the upper part of a gap between the grid plate separating structure 6 and the inner side wall of the first treatment tank 1, the grid plate separating structure 6 is driven by the lifting device 4 to move upwards to prop against the bottom of the shielding extending structure 7, at the moment, the grid plate separating structure 6 and the shielding extending structure 7 jointly divide the first treatment tank 1 into an upper space and a lower space, and then the corresponding sewage pipe is discharged into sewage for treatment, so that the sewage treatment process is uninterrupted, and the sewage treatment effect is ensured.
And have the clearance between grid tray separation structure 6 and the inside wall of first processing pond 1 for the solid particle that adheres to on the inside wall of first processing pond 1 passes through along the clearance between grid tray separation structure 6 and the inside wall of first processing pond 1, has avoided the solid particle impurity that adheres to on the inside wall of first processing pond 1 to interfere the normal motion of grid tray separation structure 6, and has avoided sewage to pass through from the clearance of grid tray separation structure 6 and the inside wall of first processing pond 1, has guaranteed the treatment effect to sewage.
In this embodiment, the filtering structure 8, the heating device, the moving device 10 and the scraping structure 11 are all in the prior art, for example, the filtering structure 8 is a rotatable filter plate, etc., the heating device may be a flat heating element, the moving device 10 is a motor driving screw to rotate, the scraping structure 11 is a supporting frame connected with a scraper, and the supporting frame is arranged on the screw, or the filtering structure 8, the heating device, the moving device 10 and the scraping structure 11 may be other technical solutions for achieving the same function, for example, the corresponding structures (the filtering structure corresponds to the filtering structure 8, the heating device corresponds to the heating device, the heating precipitation mechanism corresponds to the moving device 10 and the scraping structure 11) in the application in the patent publication CN119118257B may also be referred to herein, and the technical principle will not be explained.
The lifting device 4 comprises a gear 401 rotatably arranged at the top edge of the first treatment tank 1 through a support plate, the gear 401 is meshed with a toothed plate 402, the top of the first treatment tank 1 is provided with a lifting groove 403 and a plurality of sliding grooves 404, the toothed plate 402 is slidably connected in the lifting groove 403, the sliding grooves 404 are symmetrically arranged at the top of the first treatment tank 1 and are slidably connected with a lifting bracket 405, and the toothed plate 402 is fixedly connected with one side of the lifting bracket 405.
Through drive arrangement such as motor drive gear 401 rotation, gear 401 drives pinion rack 402 and follows lift groove 403 and slide for pinion rack 402 moves along vertical direction, thereby drives lifting support 405 and carries out elevating movement along vertical direction, and then drives grid separation structure 6 up-and-down motion.
Grid plate separation structure 6 includes a plurality of fixed connection in lifting support 405 bottom's connecting rod 601, a plurality of connecting rods 601 divide equally into two sets of and about the central plane symmetry of the vertical direction of first processing pond 1, and every group connecting rod 601 all is along horizontal straight line arrangement, the bottom joint activity of two sets of connecting rods 601 has grid plate 602 that is used for separating big granule solid impurity, and the week side of grid plate 602 is parallel with a plurality of vertical lateral walls in the first processing pond 1 respectively, be provided with two location magnetism pieces 603 on the grid plate 602 symmetry, and two location magnetism pieces 603 are inhaled with one of them in the two sets of connecting rods 601 respectively through magnetic force in order to inject the position of grid plate 602.
The lifting support 405 moves up and down to drive a plurality of connecting rods 601 to synchronously move up and down, so that the grid plate 602 moves up and down, the grid plate 602 enters into or leaves the first treatment pool 1, the two positioning magnetic blocks 603 are attracted with the corresponding connecting rods 601 to limit the movement of the grid plate 602, and the positioning magnetic blocks 603 are abutted against the corresponding connecting rods 601, so that the grid plate 602 is positioned, the grid plate 602 is positioned at the same position below the lifting support 405 when being installed, and the grid plate 602 can accurately enter the first treatment pool 1 to treat sewage.
The two positioning magnetic attraction blocks 603 are located on the same side of the two groups of connecting rods 601, so that interference to the action of separating the grid plate 602 from the connecting rods 601 is avoided.
Two sliding strips 604 are symmetrically arranged on the grid plate 602, movable grooves 605 are formed in one side, opposite to each other, of the two groups of connecting rods 601, each sliding strip 604 is slidably connected in the movable groove 605 on one group of connecting rods 601, and two positioning magnetic attraction blocks 603 are respectively arranged at the tops of the two sliding strips 604 and are respectively attracted to the outermost sides of each group of connecting rods 601.
After the two sliding strips 604 are clamped into the corresponding movable grooves 605, the grid plate 602 can only be moved and detached along the arrangement direction of each group of connecting rods 602, so that the grid plate 602 is limited to move towards the direction perpendicular to the arrangement direction of each group of connecting rods 602, then the positioning magnetic attraction blocks 603 are attracted with the outermost connecting rods 601 through magnetic force, the grid plate 602 can be limited to move along the arrangement direction of each group of connecting rods 601, and the positions of the grid plate 602 can be positioned, so that the grid plate 602 is positioned at the same position when being installed on a plurality of connecting rods 602 each time, and the grid plate 602 can accurately enter the first treatment tank 1 for sewage treatment.
After the grid plate 602 moves above the first treatment tank 1, a force can be applied to the grid plate 602 along the horizontal direction, so that the positioning magnetic attraction block 603 is disconnected from the connecting rod 601, and thus large-particle solid impurities accumulated on the grid plate 602 are treated, and the external force can be applied manually or mechanically, for example, a linear mechanism capable of moving along the horizontal direction can push the grid plate 602.
In this embodiment, the grating 602 is a plate that can filter large solid impurities, such as the movable grating of patent publication CN 119118257B.
The upper surface of the louver 602 is wavy. The contact area of the grating plate 602 and sewage is increased, the sewage treatment efficiency and the sewage treatment effect are improved, and the wavy concave parts can limit large-particle solid impurities to be separated from the grating plate 602 when the grating plate 602 is separated from the connecting rod 601.
The shielding extension structure 7 comprises a plurality of winding assemblies 701 and shielding plates 702 with the same height, each winding assembly 701 is connected with the corresponding shielding plate 702 through a connecting rope, a plurality of side walls in the first treatment tank 1 are provided with winding grooves 703, the winding assemblies 701 are respectively arranged in the corresponding winding grooves 703, the shielding plates 702 are respectively connected to the notch of the winding grooves 703 in a sliding and sealing mode, and can horizontally slide along the notch of the winding grooves 703 to extend out of the first treatment tank 1, and one side, away from the inside of the first treatment tank 1, of each shielding plate 702 is connected with springs 704 connected with the inner walls of the winding grooves 703;
wherein the plurality of shielding plates 702 are positioned above the gap between the grid plate 602 and the inner wall of the first processing tank 1 after extending into the first processing tank 1, and the portions of the plurality of shielding plates 702 positioned in the first processing tank 1 form an annular plate.
After the grid plate 602 enters the first treatment tank 1, the winding assembly 701 releases the connecting rope, the shielding plate 702 moves towards the outside of the winding groove 703 under the action of the elastic force of the spring 704 until the shielding plate 702 moves to the position above a gap between the grid plate 602 and the inner side wall of the first treatment tank 1, then the lifting device 4 drives the grid plate 602 to move upwards to be in contact with the bottoms of the shielding plates 702, as one end of the shielding plates 702 moves to the inside of the first treatment tank 1 to form a complete annular plate, the part of the shielding plates 702 extending out of the first treatment tank 1 can block sewage, and the grid plate 602 is in contact with the bottoms of the shielding plates 702, and meanwhile, the shielding plates 702 are in sliding sealing connection with the winding groove 703, so that sewage can only enter the position below the grid plate 602 through the grid plate 602, thereby ensuring the treatment effect on the sewage, and as the gap is arranged between the grid plate 602 and the inner side wall of the first treatment tank 1, the influence of solid particle impurities attached to the inner side wall of the first treatment tank 1 on the movement of the grid plate 602 is avoided.
When one end of the shielding plate 702 moves into the first treatment tank 1, the other end of the shielding plate 702 is positioned in the winding groove 703, and the spring 704 is in a compressed state while the connection rope is in a tightening state, thereby fixing the position of the shielding plate 702.
The winding assembly 701 winds the connecting rope, so that the shielding plate 702 moves towards the inside of the winding groove 703, the spring 704 is further compressed until the shielding plate 702 is separated from the upper side of the grid plate 602, and solid impurities attached to the surface of the shielding plate 702 can be scraped off through the notch of the winding groove 703, so that the shielding plate 702 can move normally.
In this embodiment, the winding component 701 is a winding connection rope of a motor-driven roller body in the prior art, and the connection rope is controlled to move along a horizontal direction by a roller, or other technical schemes can be adopted, so that the technical principle is not explained too much.
Further, the top of the shield 702 is beveled so that solid particulate impurities slide off the shield 702.
In the present embodiment, since the length of the shielding plate 702 is long, the winding groove 703 is communicated with the lifting groove 403, but due to the wall thickness of the first treatment tank 1, the shielding plate 702 slides along the communicating position of the winding groove 703 and the inner wall of the first treatment tank 1, i.e. the notch, and when the shielding plate 702 extends or retracts along the notch of the winding groove 703, the shielding plate 702 does not interfere with the toothed plate 402.
The bottom of the shielding plate 702 is provided with a barrier strip 705, the grid plate 602 is provided with a plurality of isolation grooves 706 which are connected with the barrier strips 705 in a matching way, and the barrier strips 705 form annular strips when being contacted with each other.
When the barrier strips 705 are snapped into the corresponding isolation grooves 706, the sewage can be further restricted from seeping out to the lower side of the grating 602 along between the shielding plate 703 and the grating 602 by the cooperation of the barrier strips 705 and the isolation grooves 706.
When in use, the grid plate 602 moves to a position lower than the shielding plate 703, when the shielding plate 703 moves to the position above the gap between the grid plate 602 and the inner side wall of the first treatment tank 1, the grid plate 602 is driven by the lifting device 4 to move upwards until the barrier strips 705 enter the corresponding isolation grooves 706,
Example 2:
The invention also provides a treatment process of the multi-stage sewage treatment equipment, which comprises the following specific steps:
S100, conveying the grid plate separating structure 6 into the first treatment tank 1 by one lifting device 4, then extending the shielding extending structure 7 into the first treatment tank 1, and controlling the grid plate separating structure 6 to move upwards by the lifting device 4 to be propped against the bottom of the shielding extending structure 7;
s200, sewage is input into the corresponding first treatment tank 1 through a sewage pipe, large-particle solid impurities are separated through a grid plate separation structure 6, and the sewage after the first treatment enters the second treatment tank 2;
S300, the sewage in the second treatment tank 2 gradually rises in height and passes through the filtering structure 8, the sewage which passes through the filtering structure 8 is pumped into the sedimentation tank 3 through the pumping device, the heating device heats the sewage, and the scraping structure 11 is driven by the moving device 10 to scrape the sediment and solidified impurities on the heating device;
S400, when the grid plate separating structure 6 is blocked by accumulation of large-particle solid impurities, the sewage pipe is closed, the shielding extension structure 7 is separated from the upper part of the grid plate separating structure 6, the grid plate separating structure 6 moves upwards to be separated from the first treatment tank 1 through the lifting device 4 so as to treat the large-particle solid impurities, and the other lifting device 4 drives the corresponding grid plate separating structure 6 to the other first treatment tank 1, so that sewage treatment is repeatedly performed according to the steps.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.