CN115999225B - Sewage treatment device - Google Patents
Sewage treatment device Download PDFInfo
- Publication number
- CN115999225B CN115999225B CN202211662096.9A CN202211662096A CN115999225B CN 115999225 B CN115999225 B CN 115999225B CN 202211662096 A CN202211662096 A CN 202211662096A CN 115999225 B CN115999225 B CN 115999225B
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- chamber
- filter screen
- blades
- rotating shaft
- water
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- 239000010865 sewage Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 239000002893 slag Substances 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 12
- 230000001954 sterilising effect Effects 0.000 claims description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims 3
- 238000001914 filtration Methods 0.000 abstract description 12
- 238000007790 scraping Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a sewage treatment device, which comprises: a housing having a first chamber, a second chamber, and a third chamber disposed therein; the middle part of the third chamber is provided with a first opening; the first filter screen is of an arc-shaped structure; the water inlet is arranged above the first chamber; the rotating shaft is horizontally arranged, and two ends of the rotating shaft are rotationally connected with the inner wall of the shell; the blades are arranged on the rotating shaft at intervals along the circumferential direction, and when the blades rotate to a horizontal state, the water inlet is vertically and downwards projected and accommodated on the blades; the second filter screen is arranged at the top of the second cavity, one end of the second filter screen is connected with the first filter screen, and the other end of the second filter screen extends downwards to the first opening in an inclined mode. According to the invention, the water wheel formed by the rotating shaft and the blades is arranged, the water wheel is driven by water flow to rotate, the blades automatically clean the first filter screen during rotation, so that the filtering efficiency of the filter screen is ensured.
Description
Technical Field
The invention relates to the technical field of sewage treatment. More particularly, the present invention relates to a sewage treatment apparatus.
Background
The sewage generated in the production process of each industry and the domestic sewage generated in daily life of people are treated before being discharged to a natural river so as to meet the water quality requirement of being discharged into a certain water body or being reused.
The existing sewage treatment device has the defect that a filter screen is easy to be blocked to influence the filtering efficiency, such as the invention patent with the application number 2022109682759, and a telescopic filter plate which is driven by a driving roller to move up and down is arranged in a treatment tower so as to automatically clean sludge deposited on the filter plate, so that time and labor are saved, the filtering efficiency is high.
Disclosure of Invention
It is an object of the present invention to solve at least the above problems and to provide at least the advantages to be described later.
The invention also aims to provide a sewage treatment device, which is characterized in that a water wheel formed by a rotating shaft and a plurality of blades is arranged, the water wheel is driven by water flow to rotate, the blades automatically clean the first filter screen during rotation, and the filtering efficiency of the filter screen is ensured.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a sewage treatment apparatus including:
a housing having a first chamber, a second chamber, and a third chamber in the interior thereof in the width direction thereof in order; the middle part of one side of the third chamber, which is close to the second chamber, is provided with a first opening;
the first filter screen is of an arc-shaped structure arranged at the top of the first chamber; one end of the first filter screen, which is far away from the second chamber, is higher than the other end of the first filter screen, which is close to the second chamber;
The water inlet is arranged above the first chamber;
the rotating shaft is horizontally arranged between the first filter screen and the water inlet along the length direction of the shell, and is positioned at one side of the water inlet close to the second chamber; the two ends of the rotating shaft are rotationally connected with the inner wall of the shell; the circle center of the first filter screen is positioned on the axis of the rotating shaft;
The blades are arranged on the rotating shaft at intervals along the circumferential direction, and when the blades rotate to a horizontal state, the water inlet is vertically and downwards projected and accommodated on the blades;
the second filter screen is arranged at the top of the second chamber, one end of the second filter screen is connected with the other end of the first filter screen, and the other end of the second filter screen extends downwards to the first opening in an inclined mode.
Preferably, in the sewage treatment device, a slag shoveling mechanism is arranged at the free end of each blade, and the sewage treatment device comprises:
one end of the slag shoveling plate is provided with a groove, and the other end of the slag shoveling plate is of a wedge-shaped structure; the free ends of the blades are inserted into the grooves;
the two sliding blocks are respectively arranged at two sides of the groove, and each sliding block is in sliding connection with the corresponding blade;
Two stop blocks are arranged on two sides of the free end of the blade, one stop block is correspondingly arranged on one sliding block, and each stop block is overlapped with the corresponding projection part of the sliding block along the radial direction of the rotating shaft;
and one end of the spring is connected with the bottom of the groove, and the other end of the spring is connected with the free end of the blade.
Preferably, the sewage treatment device further comprises a conveying belt, wherein the conveying belt is parallel to the second filter screen and is arranged above the second filter screen, a belt roller of the conveying belt is parallel to the rotating shaft, and one belt roller is in transmission connection with the rotating shaft; one end of the conveyor belt, which is close to the third chamber, extends into the first opening; the conveyer belt is provided with a plurality of scrapers at intervals along the circumferential direction, each scraper is perpendicular to the conveyer belt, when the scrapers rotate to the lower limit position, the bottoms of the scrapers are contacted with the second filter screen, and each scraper does not limit the circumferential rotation of each blade.
Preferably, in the sewage treatment device, a plurality of spray heads are arranged on one side of the water inlet close to the second chamber at intervals along the length direction of the shell, and each spray head is obliquely downwards arranged towards the direction close to the second chamber.
Preferably, in the sewage treatment device, each spray head is communicated with the interior of the first chamber through a water guide pipe, and a water pump is arranged on the water guide pipe.
Preferably, in the sewage treatment device, a second opening is formed on a first side, close to the first chamber, of the second chamber; a water guide plate is arranged in the second chamber, one end of the water guide plate is connected with a second side, far away from the first chamber, of the second chamber, and the other end of the water guide plate extends downwards in an inclined mode into the second opening; the water guide plate is provided with a plurality of strip-shaped bulges at intervals, each bulge extends along the length direction of the shell, and the vertical section of each bulge is of a semicircular structure.
Preferably, in the sewage treatment apparatus, the water guide plate divides the second chamber into an upper space and a lower space, and the upper space and the lower space are both communicated with the first chamber through a second opening;
The sewage treatment device further comprises a plurality of partition boards which are arranged in the lower space along the width direction of the shell and are positioned below the water guide plate, each partition board is vertically arranged and parallel to the length direction of the shell, a third opening is formed in each partition board, two arbitrary adjacent third openings are vertically arranged in a staggered mode, a third filter screen is arranged in each third opening, and meshes of the plurality of third filter screens gradually decrease from the first chamber to the third chamber.
Preferably, in the sewage treatment device, the plurality of partitions divide the lower space into a plurality of fourth chambers, a water outlet is formed in the bottom of one fourth chamber closest to the third chamber, ultraviolet sterilization mechanisms are arranged in the rest of the fourth chambers except for one fourth chamber closest to the third chamber, and each ultraviolet sterilization mechanism comprises a plurality of ultraviolet light tubes arranged at intervals along the width direction of the shell.
Preferably, in the sewage treatment device, at least one chute is respectively arranged on two side surfaces of each blade; each sliding block is of a strip-shaped structure extending along the length direction of the shell, the sliding blocks are arranged in corresponding sliding grooves in a sliding mode, sealing strips are arranged on the side faces, opposite to the blades, of the sliding blocks, and the sealing strips are in butt joint with the side faces of the blades.
The invention at least comprises the following beneficial effects:
According to the invention, the water wheel consisting of the rotating shaft and the plurality of blades is arranged below the water inlet, the water wheel is driven to rotate by using water flow as power, the blades are driven to rotate, the rotating blades can scratch the first filter screen with the arc-shaped structure, the meshes of the first filter screen are prevented from being blocked by sludge, the filtering effect of the first filter screen is ensured, and further, the working efficiency of the sewage treatment device is improved;
additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view showing a construction of a sewage treatment apparatus according to one embodiment of the present invention;
FIG. 2 is a schematic view of a structure of a shaft and a plurality of blades according to another embodiment of the present invention;
FIG. 3 is a schematic structural view of the slag shoveling plate in a state of abutting against the first filter screen when the blade rotates to the leftmost side in another technical scheme of the invention;
fig. 4 is a schematic structural view of the slag shoveling plate in another embodiment of the present invention, in which the blade rotates to the far right.
Reference numerals illustrate: 1-a housing; 11-a first chamber; 12-a second chamber; 121-a second opening; 13-a third chamber; 131-a first opening; 2-a first filter screen; 3-a water inlet; 31-a spray head; 4-rotating shaft; 5-leaf blades; 51-a slag shoveling plate; 52-grooves; 53-slide block; 54-stop; 55-springs; 6-a second filter screen; 71-a conveyor belt; 72-scraping plate; 8-a water guide plate; 81-bulge; 91-a separator; 92-a third filter screen; 93-ultraviolet sterilization mechanism.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The experimental methods described in the following embodiments are conventional methods unless otherwise indicated, and the reagents and materials are commercially available.
In the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention provides a sewage treatment apparatus comprising:
A housing 1 having a first chamber 11, a second chamber 12, and a third chamber 13 provided therein in this order along a width direction thereof; the middle part of one side of the third chamber 13, which is close to the second chamber 12, is provided with a first opening 131;
The first filter screen 2 is an arc-shaped structure arranged at the top of the first chamber 11; one end of the first filter screen 2 far away from the second chamber 12 is higher than the other end close to the second chamber 12;
a water inlet 3 arranged above the first chamber 11;
the rotating shaft 4 is horizontally arranged between the first filter screen 2 and the water inlet 3 along the length direction of the shell 1, and the rotating shaft 4 is positioned at one side of the water inlet 3 close to the second chamber 12; the two ends of the rotating shaft 4 are rotatably connected with the inner wall of the shell 1; the circle center of the first filter screen 2 is positioned on the axis of the rotating shaft 4;
The blades 5 are arranged on the rotating shaft 4at intervals along the circumferential direction, and when the blades 5 rotate to a horizontal state, the water inlet 3 is vertically and downwards projected and accommodated on the blades; the length of the blade along the radial direction of the rotating shaft is not smaller than the radius of the first filter screen, so that the free end of the blade can scratch the screen body of the first filter screen, and in order to improve the slag removal effect, steel wire brush bristles can be arranged at the free end of the blade; the length of the blade along the axial direction of the rotating shaft is similar to the length of the first chamber along the length direction of the shell, namely, two sides of the blade along the length direction of the shell are adjacent to but not abutted against the inner wall of the first chamber, so that the blade can cover the whole first chamber, and meanwhile, the inner wall of the first chamber cannot interfere with the circumferential rotation of the blade;
And the second filter 6 is arranged at the top of the second chamber 12, one end of the second filter 6 is connected with the other end of the first filter 2, and the other end of the second filter extends downwards to the first opening 131 in an inclined way.
In the technical scheme, the invention provides a sewage treatment device, which comprises a shell, a first filter screen, a water inlet, a rotating shaft, a plurality of blades and a second filter screen, wherein the shell is internally divided into a first cavity, a second cavity and a third cavity;
The sewage to be treated flows downwards through the water inlet, is filtered by the first filter screen and is collected in the first cavity, the sewage flushes blades arranged between the water inlet and the first filter screen in the downwards flowing process, and under the action of the water flow power of the sewage, the rotating shaft and the water wheels formed by the blades rotate (the example is shown in fig. 1) under the action of the water flow power of the sewage, filter residues in the first filter screen can be scraped in the rotating process of the blades and pushed onto the second filter screen, and the filter residues automatically move downwards and move into the third cavity through the first opening by the guiding of the second filter screen which is obliquely downward; the water flow power is utilized to drive the blades to rotate, so that the first filter screen is automatically cleaned, the mesh holes of the first filter screen are prevented from being blocked, the filtering efficiency is influenced, the filtering effect of the first filter screen is ensured, and the working efficiency of the sewage treatment device is further improved; the filtered residues are thrown onto the second filter screen under the drive of the blades, residual water in the filtered residues can be collected into the second cavity through the second filter screen, and the filtered water collected in the second cavity and the first cavity can be conveyed to subsequent water treatment equipment for further purification treatment according to the pollution degree of sewage (the pollution degree is heavy) or the water quality (high) requirement of the filtered water.
In another technical scheme, sewage treatment plant, every blade free end is equipped with shovel sediment mechanism, it includes:
A slag shoveling plate 51, one end of which close to the blade is provided with a groove 52, and the other end far away from the blade is of a wedge-shaped structure; the free ends of the blades are inserted into said grooves 52;
two sliding blocks 53, which are respectively arranged at two sides of the groove 52, each sliding block 53 is connected with the corresponding blade 5 in a sliding way;
two stoppers 54 disposed on both sides of the free end of the vane, one of the sliders 53 being correspondingly disposed with one stopper 54, each stopper 54 overlapping with a projection portion of the corresponding slider 53 in the radial direction of the rotation shaft 4;
And one end of the spring 55 is connected with the bottom of the groove 52, and the other end of the spring is connected with the free end of the blade 5.
In the technical scheme, the slag shoveling mechanism is arranged on each blade, so that meshes of the first filter screen can be cleaned more effectively, the filtering effect of the first filter screen is ensured, and the working efficiency of the sewage disposal device is improved; the slag shoveling mechanism comprises a slag shoveling plate, wherein the slag shoveling plate is elastically arranged at the free end of a blade through a spring, a groove is formed at one end of the slag shoveling plate in order to ensure that the elastic movement track of the slag shoveling plate is along the radial direction of a rotating shaft, the free end of the blade is embedded in the groove, and a sliding block in sliding connection with the blade is arranged to ensure that the movement track of the slag shoveling plate is along the radial direction of the rotating shaft, so that the slag shoveling plate is further prevented from moving outwards and passing the head, two stop blocks are arranged at the free end of the blade, and the stop blocks can limit the movement of the sliding block and prevent the sliding block from falling off the blade to cause the slag shoveling plate to fall off the blade; the inclined plane of the wedge-shaped structure of the other end position of the slag shoveling plate, as shown in fig. 3-4, the inclined planes of all the slag shoveling plates are consistent along with each other in the anticlockwise direction, when the slag shoveling plates move to the leftmost side (as shown in fig. 3) along with the blades, the other end of the slag shoveling plate just collides with one end of the first filter screen, the spring is compressed under the abutting action of the first filter screen, the slag shoveling plates keep the state of always abutting with the net body of the first filter screen along with the rotation of the blades, the net body of the first filter screen is scraped, the meshes of the first filter screen can be well cleaned, meanwhile, the blades can carry over slag in the first filter screen, when the slag shoveling plates move to the rightmost side along with the rotation of the blades (as shown in fig. 4), the slag shoveling plates move to the other end of the first filter screen and continue to rotate, the abutment of the free end of the slag shoveling plates is relieved, the slag shoveling plates are popped up against the radial outside of the blades along with the rotation of the rotation shaft under the action of the springs, and the centrifugal action of the circumferential motion is realized, the carried slag shoveling plates can be pushed outwards along with the rotation of the rotation shaft to the filter screen, so that the carried filtered slag can be guided out to the filter screen can be well and clean the filter slag can be guided to the filter net.
In another technical scheme, the sewage treatment device further comprises a conveying belt 71, wherein the conveying belt 71 is parallel to the second filter screen 6 and is arranged above the second filter screen 6, belt rollers of the conveying belt 71 are parallel to the rotating shaft 4, and one belt roller is in transmission connection with the rotating shaft 4; one end of the conveyor 71, which is close to the third chamber 13, extends into the first opening 131; a plurality of scrapers 72 are arranged on the conveying belt 71 at intervals along the circumferential direction, each scraper 72 is perpendicular to the conveying belt 71, when the scrapers 72 rotate to a lower limit position, the bottoms of the scrapers 72 are in contact (butt joint) with the second filter screen 6, and each scraper 72 does not limit the circumferential rotation of each blade 5.
In the technical scheme, the conveyor belt is further arranged above the second filter screen, and the conveyor belt is provided with a plurality of scraping plates which can push filter residues on the second filter screen to move downwards and finally fall into the third cavity through the first opening; as shown in fig. 1, the conveying belt is parallel to the second filter screen and is arranged above the second filter screen, when the scraping plate on the conveying belt moves to the lower part, the scraping plate is vertical to the second filter screen, and the bottom of the scraping plate is in contact with the second filter screen, so that the scraping plate is driven to move when the conveying belt rotates, the scraping plate can scratch the second filter screen, and then filter residues on the second filter screen are driven downwards, and meanwhile, the phenomenon that the filter residues block meshes of the second filter screen to influence the filtering effect of the second filter screen can be avoided; one belt roller of the conveying belt is in transmission connection with the rotating shaft through a transmission belt, (the structure is not shown in the figure), a power source is not required to be additionally arranged in the rotation of the conveying belt, the rotation direction of the conveying belt is synchronous with the rotation direction of the rotating shaft (anticlockwise as shown in figure 1), and the length of the scraping plate along the length direction of the shell is equal to the length of the second filter screen along the length direction of the shell, so that the scraping plate can scratch the whole second filter screen; the scraper blade moves to the leftmost side along with the conveyer belt, and can not prevent the rotation of the blade, and particularly as shown in fig. 2, when the blade rotates to the right side and just rubs with one of the scraper blades, the slag plate can retract to the inner side, and the blade and the scraper blade are not interfered with each other.
In another technical scheme, in the sewage treatment apparatus, a plurality of spray heads 31 are disposed at intervals along the length direction of the casing on one side of the water inlet 3 close to the second chamber, and each spray head 31 is disposed obliquely downward toward the direction close to the second chamber 12. As shown in fig. 1, when the blade rotates to the upper portion, the spray nozzle sprays water to clean the slag shoveling plate and the blade which scratch the mud slag, the cleaned water flows downwards again, the cleaned water is filtered by the first filter screen and the second filter screen, the blade is cleaned by the spray nozzle, and the effect of the blade on scratching the cleaning holes of the first filter screen is guaranteed.
In another technical scheme, in the sewage treatment device, each spray head 31 is communicated with the interior of the first chamber 11 through a water guide pipe, and a water pump is arranged on the water guide pipe. The water source of shower nozzle can directly absorb the filtration water in the first chamber, and easy getting is easily obtained, simple structure, convenient operation.
In another aspect, in the sewage treatment apparatus, the second chamber 12 is provided with a second opening 121 near the first side of the first chamber 11; a water guide plate 8 is arranged in the second chamber 12, one end of the water guide plate is connected with a second side of the second chamber 12 far away from the first chamber 11, and the other end of the water guide plate extends downwards in an inclined manner into the second opening 121; a plurality of strip-shaped protrusions 81 are arranged on the water guide plate 8 at intervals, each protrusion 81 extends along the length direction of the shell 1, and the vertical section of each protrusion is of a semicircular structure. The second cavity and the first cavity are communicated through the second opening, the second cavity is internally provided with the water guide plate which is inclined downwards towards the direction close to the first cavity, filtered water in the second cavity can be guided into the first cavity, and the water guide plate is provided with a plurality of strip-shaped protrusions, so that fine silt in water can be blocked, and the effect of further filtering and purifying is achieved.
In another aspect, in the sewage treatment apparatus, the water guide plate 8 divides the second chamber into an upper space and a lower space, and the upper space and the lower space are both communicated with the first chamber through a second opening;
The sewage treatment device further comprises a plurality of partition boards 91 which are arranged in the lower space along the width direction of the shell and are all positioned below the water guide plate, each partition board 91 is vertically arranged and parallel to the length direction of the shell, third openings are formed in the partition boards, two arbitrary adjacent third openings are vertically arranged in a staggered mode, a third filter screen 92 is arranged in each third opening, and the mesh openings of the third filter screens gradually decrease from the first chamber to the third chamber.
The left side of the water guide plate extends to the third opening, an upper space is formed between the water guide plate and the upper part of the third opening, filtered water flows to a water guide port in the first cavity, and an overflow port for overflowing water in the first cavity to the lower space is formed between the water guide plate and the lower part of the third opening;
the lower space is divided into a plurality of independent spaces through a plurality of partition plates, any two adjacent independent spaces are communicated through a third opening, a third filter screen is arranged in the third opening, water in the first chamber overflows to the lower space through an overflow port and sequentially passes through the third openings which are arranged in an up-down staggered mode, and finally the water is discharged through a water outlet; the meshes of the third filter screen at the leftmost side are the largest and smaller than those of the second filter screen, the meshes of the third filter screen at the rightmost side are the smallest, and the filtered water discharged from the water outlet can reach the discharge standard through the filtration of a plurality of third filter screens, so that the water quality requirement of reuse can be met.
In another technical scheme, the sewage treatment device is characterized in that the lower space is divided into a plurality of fourth chambers by a plurality of partition boards 91, a water outlet is formed in the bottom of one fourth chamber closest to the third chamber, ultraviolet sterilization mechanisms 93 are arranged in the rest of the fourth chambers except for one fourth chamber closest to the third chamber, and each ultraviolet sterilization mechanism comprises a plurality of ultraviolet light tubes arranged at intervals along the width direction of the shell. As shown in fig. 1, an ultraviolet sterilization mechanism is arranged in the middle of the three fourth chambers near the left side, so that the filtered water can be sterilized and purified, and the quality of the filtered water is further improved.
In another technical scheme, in the sewage treatment device, at least one chute is respectively arranged on two side surfaces of each blade; each sliding block is of a strip-shaped structure extending along the length direction of the shell, the sliding blocks are arranged in corresponding sliding grooves in a sliding mode, sealing strips are arranged on the side faces, opposite to the blades, of the sliding blocks, and the sealing strips are in butt joint with the side faces of the blades. Through the sliding connection of slider and spout, realize the sliding connection of slider and blade, in order to avoid muddy water to get into in the recess, set up the sealing strip on the slider, can prevent muddy water to get into in the recess through the gap between slider and the blade.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (6)
1. Sewage treatment plant, its characterized in that includes:
a housing having a first chamber, a second chamber, and a third chamber in the interior thereof in the width direction thereof in order; the middle part of one side of the third chamber, which is close to the second chamber, is provided with a first opening;
the first filter screen is of an arc-shaped structure arranged at the top of the first chamber; one end of the first filter screen, which is far away from the second chamber, is higher than the other end of the first filter screen, which is close to the second chamber;
The water inlet is arranged above the first chamber;
the rotating shaft is horizontally arranged between the first filter screen and the water inlet along the length direction of the shell, and is positioned at one side of the water inlet close to the second chamber; the two ends of the rotating shaft are rotationally connected with the inner wall of the shell; the circle center of the first filter screen is positioned on the axis of the rotating shaft;
The blades are arranged on the rotating shaft at intervals along the circumferential direction, and when the blades rotate to a horizontal state, the water inlet is vertically and downwards projected and accommodated on the blades;
the second filter screen is arranged at the top of the second chamber, one end of the second filter screen is connected with the other end of the first filter screen, and the other end of the second filter screen extends downwards to the first opening in an inclined mode;
A second opening is formed in the first side, close to the first chamber, of the second chamber; a water guide plate is arranged in the second chamber, one end of the water guide plate is connected with a second side, far away from the first chamber, of the second chamber, and the other end of the water guide plate extends downwards in an inclined mode into the second opening; a plurality of strip-shaped protrusions are arranged on the water guide plate at intervals, each protrusion extends along the length direction of the shell, and the vertical section of each protrusion is of a semicircular structure;
the water guide plate divides the second chamber into an upper space and a lower space, and the upper space and the lower space are communicated with the first chamber through a second opening;
The sewage treatment device further comprises a plurality of partition boards which are arranged in the lower space along the width direction of the shell and are positioned below the water guide plate, each partition board is vertically arranged and parallel to the length direction of the shell, third openings are formed in the partition boards, any two adjacent third openings are vertically arranged in a staggered mode, a third filter screen is arranged in each third opening, and meshes of the third filter screens gradually decrease from the first chamber to the third chamber;
The lower space is divided into a plurality of fourth chambers by a plurality of baffles, a water outlet is arranged at the bottom of one fourth chamber closest to the third chamber, ultraviolet sterilization mechanisms are arranged in the other fourth chambers except for the fourth chamber closest to the third chamber, and each ultraviolet sterilization mechanism comprises a plurality of ultraviolet light tubes arranged at intervals along the width direction of the shell.
2. The wastewater treatment apparatus of claim 1, wherein each blade has a slag-shoveling mechanism at a free end thereof, comprising:
one end of the slag shoveling plate is provided with a groove, and the other end of the slag shoveling plate is of a wedge-shaped structure; the free ends of the blades are inserted into the grooves;
the two sliding blocks are respectively arranged at two sides of the groove, and each sliding block is in sliding connection with the corresponding blade;
Two stop blocks are arranged on two sides of the free end of the blade, one stop block is correspondingly arranged on one sliding block, and each stop block is overlapped with the corresponding projection part of the sliding block along the radial direction of the rotating shaft;
and one end of the spring is connected with the bottom of the groove, and the other end of the spring is connected with the free end of the blade.
3. The wastewater treatment device of claim 2, further comprising a conveyor belt parallel to and above the second filter screen, wherein a belt roller of the conveyor belt is parallel to the rotating shaft, and wherein one belt roller is in driving connection with the rotating shaft; one end of the conveyor belt, which is close to the third chamber, extends into the first opening; the conveyer belt is provided with a plurality of scrapers at intervals along the circumferential direction, each scraper is perpendicular to the conveyer belt, when the scrapers rotate to the lower limit position, the bottoms of the scrapers are contacted with the second filter screen, and each scraper does not limit the circumferential rotation of each blade.
4. The sewage treatment apparatus according to claim 1, wherein a plurality of spray heads are provided at intervals along the length direction of the housing on a side of the water inlet close to the second chamber, each spray head being provided obliquely downward toward a direction close to the second chamber.
5. The wastewater treatment apparatus of claim 4, wherein each spray head is in communication with the interior of the first chamber via a water conduit having a water pump disposed thereon.
6. The sewage treatment apparatus as claimed in claim 2, wherein at least one chute is provided on both sides of each blade; each sliding block is of a strip-shaped structure extending along the length direction of the shell, the sliding blocks are arranged in corresponding sliding grooves in a sliding mode, sealing strips are arranged on the side faces, opposite to the blades, of the sliding blocks, and the sealing strips are in butt joint with the side faces of the blades.
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