CN113800713B - Domestic sewage treatment device and treatment method - Google Patents
Domestic sewage treatment device and treatment method Download PDFInfo
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- CN113800713B CN113800713B CN202111047529.5A CN202111047529A CN113800713B CN 113800713 B CN113800713 B CN 113800713B CN 202111047529 A CN202111047529 A CN 202111047529A CN 113800713 B CN113800713 B CN 113800713B
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- water
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- 239000010865 sewage Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000007790 scraping Methods 0.000 claims abstract description 167
- 239000004576 sand Substances 0.000 claims abstract description 127
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 239000008399 tap water Substances 0.000 claims description 12
- 235000020679 tap water Nutrition 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 11
- 208000034699 Vitreous floaters Diseases 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 56
- 230000000694 effects Effects 0.000 abstract description 48
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 239000004575 stone Substances 0.000 description 23
- 230000005484 gravity Effects 0.000 description 6
- 239000005416 organic matter Substances 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 238000005273 aeration Methods 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000005352 clarification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Centrifugal Separators (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to a domestic sewage treatment device and a treatment method, wherein the domestic sewage treatment device comprises a cyclone sand setting machine; the cyclone sand setting machine also comprises a machine body, a machine cover and a controller; the outer wall of the machine body is provided with a water inlet and a water outlet; the lower end of the machine body is fixedly provided with a sand hopper, and the sand hopper is rotationally connected with a screw rod; according to the invention, the scraping blade is driven by the scraping blade and the blade to rotate along the inner wall of the machine body, so that the scraping blade scrapes off adhered organic matters and bacteria on the inner wall of the machine body, thereby reducing corrosion of the bacteria on the inner wall of the machine body, prolonging the service life of the machine body, and the rotating rod is arranged to improve the vortex effect in the machine body, so that the bacteria and the organic matters of the machine body enter and are discharged through the round hole under the action of the vortex suction force, thereby effectively improving the purifying amount of the organic matters in the biological treatment process of the next link, reducing the residual amount of the organic matters in the sewage treatment process and improving the effect of domestic sewage treatment.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a domestic sewage treatment device and a treatment method.
Background
In the sewage treatment process of a sewage plant, coarse particles such as silt and the like in the sewage are removed by adopting a sand settling machine, so that the abrasion and blockage of facilities such as a protection pipeline, a valve and the like caused by the mixing of coarse gravel in the sewage treatment process are prevented, the existing sand settling machine for sewage treatment has four forms of horizontal flow type, vertical flow type, aeration type and rotational flow type, the construction of the horizontal flow type sand settling machine is convenient, the cost is low, but when the sewage treatment machine is used for a long time, the sludge deposition and the mud pumping are inconvenient, the sand removal effect of the vertical flow type sand settling machine is poor, the operation management is inconvenient, and the aeration type sand settling machine consumes energy due to the aeration effect, so that the operation of an anaerobic section or an anoxic section of a biological denitrification and dephosphorization system is adversely affected; the rotational flow sand settling machine can effectively remove fine sand (sand grains below 0.1 mm) which is difficult to remove by other forms of sand settling machines by reasonably adjusting the rotating speed of the rotating slurry plate, has the characteristics of small occupied area, high sand removal efficiency and the like, and is widely applied abroad.
According to the technical scheme, through the arrangement of an upper clarification area, a middle sand sedimentation area and a lower sand collection area, the upper side wall of the clarification area is provided with a water inlet and a water outlet, a sand setting machine is provided with a stirrer, a spiral sand-water separator is a hollow long pipe, and a shaft spiral is arranged in the pipe, so that the sand setting machine has the characteristics of small occupied area, simple structure and good sand removal effect through the arrangement of the integrated cyclone sand removal device; however, this technical scheme does not solve completely because of the long-time use of whirl sand setting machine for organic matter such as bacterium in the sewage accumulates at the organism inner wall, and when the grit striking at the organism inner wall, the remaining organic matter on the grit breaks away from the organism and adheres to the organism inner wall, make organism inner wall organic matter constantly accumulate, breed the bacterium, make the organism inner wall receive the corruption of bacterium, make its life reduce and aquatic organic matter adheres to the organism inner wall, make aquatic organic matter content reduce, thereby influence subsequent biological treatment, make the treatment rate of organic matter reduce, and then cause the limitation of this technical scheme.
In view of the above, the present invention provides a domestic sewage treatment device and a treatment method, which solve the above technical problems.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a domestic sewage treatment device and a treatment method, and the rotational flow sand setting machine used in the invention is provided with the scraping blade, so that the scraping blade rotates along the inner wall of a machine body under the drive of the scraping blade and the blade, and the scraping blade scrapes off adhered organic matters and bacteria on the inner wall of the machine body, thereby reducing the corrosion of the bacteria on the inner wall of the machine body, prolonging the service life of the machine body, improving the vortex effect in the machine body, leading the bacteria and the organic matters of the machine body to enter and be discharged through the round holes under the suction effect of the vortex, further effectively improving the purifying amount of the organic matters in the biological treatment process of the next link, reducing the residual amount of the organic matters in the sewage treatment process, and improving the domestic sewage treatment effect.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a domestic sewage treatment device, which comprises a cyclone sand setting machine, a machine body, a machine cover and a controller, wherein the machine body is provided with a machine cover; the outer wall of the machine body is provided with a water inlet and a water outlet; the lower end of the machine body is fixedly provided with a sand hopper, and the sand hopper is rotationally connected with a screw rod; the outer wall of the machine body is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with a screw rod; the machine cover is fixedly arranged at the upper end of the machine body, the upper end of the machine cover is fixedly connected with a driving motor, the lower end of the machine cover is provided with a rotating rod, the rotating rod is fixedly connected with the output end of the driving motor, the outer wall of the rotating rod is fixedly connected with a blade, the lower end of the rotating rod is fixedly connected with a scraping plate, the scraping plate and one end, close to the inner wall of the machine body, of the blade are fixedly connected with scraping plates, and the scraping plates are in sliding contact with the inner wall of the machine body; the rotary rod is internally provided with a cavity, the surface of the rotary rod is provided with a round hole communicated with the cavity, the lower end of the rotary rod is rotationally and hermetically connected with a drain pipe, one end of the drain pipe is communicated with the cavity, and the other end of the drain pipe is communicated with the water outlet; the controller is used for controlling the whole cyclone sand settling machine to automatically run;
in the prior art, along with the long-time use of the cyclone sand settling machine, bacteria and other organic matters in sewage are accumulated on the inner wall of the machine body, and when sand and stone collide on the inner wall of the machine body, residual organic matters on the sand and stone are separated from the surface of the sand and are attached to the inner wall of the machine body, so that the organic matters on the inner wall of the machine body are continuously accumulated, bacteria are bred, the inner wall of the machine body is corroded by the bacteria, the service life of the machine body is reduced, the organic matters in water are attached to the inner wall of the machine body, the content of the organic matters in water is reduced, the subsequent biological treatment is influenced, and the treatment rate of the organic matters is reduced;
when in work, a worker firstly controls tap water to fill the sand hopper through the water inlet and then controls the tap water to stop through the controller, then introduces sewage into the sand hopper from the water inlet, and controls the driving motor to drive the rotating rod to rotate, so that the rotating rod drives the blade plate and the scraping plate to rotate, and the scraping plate rotates along with the rotation of the blade plate and the scraping plate, and simultaneously, the water in the machine body rotates, at the moment, the sewage is controlled to enter from the water inlet through the controller, so that sand in the sewage rotates and centrifugally moves, because organic matters in the sand water are different from each other due to the centrifugal force, the sand is thrown to the inner wall of the machine body and is sunk into the sand hopper under the action of gravity, and the organic matters in the sand water are separated from the sand in the middle part of the machine body, and the water in the middle part of the machine body and the organic matters are sucked into the cavity through the round hole by starting the water suction pump due to the connection of the drain pipe and the external water suction pump, the cavity enters the drain pipe, so that water and organic matters in the drain pipe are discharged out of the machine body through the water outlet, when sand and stone are accumulated in the sand hopper, the controller controls the servo motor to drive the screw rod to rotate, so that the screw rod discharges sand and stone in the sand hopper out of the sand hopper, when the scraping blade rotates along with the blade, the scraping blade can scrape the inner wall of the machine body, so that organic matters and bacteria adhered to the inner wall of the machine body are scraped off by the scraping blade, the adhesion of the organic matters on the inner wall is avoided, the bacterial breeding on the inner wall of the machine body is reduced, the corrosion effect of bacteria on the inner wall of the machine body is weakened, the service life of the inner wall of the machine body is prolonged, the scraped bacteria and organic matters are small in density, the gravity of the bacteria and organic matters is smaller than that of the sand and stone, the centrifugal force of the bacteria and the organic matters is smaller than that of the sand and stone, the rotating rod rotates and absorbs water, so that the water body inside the machine body generates vortex, therefore, scraped bacteria and organic matters near the vortex overcome the centrifugal force under the action of vortex suction force, and enter the rotating rod through the round hole under the drive of the vortex, and finally are discharged;
according to the invention, the scraping blade is driven by the scraping blade and the blade to rotate along the inner wall of the machine body, so that the scraping blade scrapes off adhered organic matters and bacteria on the inner wall of the machine body, thereby reducing corrosion of the bacteria on the inner wall of the machine body, prolonging the service life of the machine body, and the rotating rod is arranged to improve the vortex effect in the machine body, so that the bacteria and the organic matters of the machine body enter and are discharged through the round hole under the action of the vortex suction force, thereby effectively improving the purifying amount of the organic matters in the biological treatment process of the next link, reducing the residual amount of the organic matters in the sewage treatment process and improving the effect of domestic sewage treatment.
Preferably, the scraping blade is obliquely arranged, and the included angle between the scraping blade and the inner wall of the machine body is 30-50 degrees; when the scraper scrapes the inner wall of the machine body, the scraper is obliquely arranged, so that an inclination angle of 30-50 degrees is generated between the scraper and the inner wall of the machine body, when the blade and the scraper drive the scraper to rotate, one end of the scraper, which is in contact with the inner wall of the machine body, is used for shoveling organic matters and bacteria adhered to the inner wall of the machine body, the scraping effect of the scraper on the organic matters on the inner wall of the machine body is improved, on the other hand, the organic matters flow along the upper surface of the scraper along with water flow in the scraping process of the scraper on the inner wall of the machine body, so that the resistance of the water flow on the scraper is reduced, the rotating speed of the scraper is improved, the stirring effect of the scraper on the water flow in the machine body is improved, the centrifugal force born by sand is improved, separation between sand and the organic matters is accelerated, the adhesion amount of the organic matters on the surface of the sand is reduced, and the adhesion amount of the organic matters on the inner wall of the machine body is reduced, and the practical application effect of the scraper is effectively improved.
Preferably, conical protrusions are intermittently distributed on the upper end face of the scraping blade, and the conical protrusions and the scraping blade are integrally formed; when the scraper scrapes off organic matters adhered to the inner wall of the machine body, the organic matters flow out along the gap between two adjacent conical bulges along with water flow, the structure of the scraper is enhanced, and when the water flows through the conical bulges, the conical bulges have a cutting effect on the water flow, so that the conical bulges can reduce the resistance of the water to the scraper, the water flows through two sides of the conical bulges, the conical bulges play a role in guiding the water flow, the scraper rotates to be contacted with sand and impacted, the scraper shakes, the stability of the scraper is reduced, and therefore, the damping force of the scraper is improved, so that the shaking of the scraper is weakened, and the scraper can be ensured to scrape the organic matters on the inner wall of the machine body stably; according to the invention, through the arrangement of the conical protrusions, the conical protrusions can cut water flow, the resistance of water to the scraping blade is reduced, the scraping blade is convenient to scrape the inner wall of the machine body, the damping force of the scraping blade is improved, the shaking generated by collision with sand stone in the rotation process of the scraping blade is reduced, the scraping effect of the scraping blade is improved, the practical application effect of the scraping blade is improved, and the structural strength of the scraping blade is increased and the service life of the scraping blade is prolonged because the conical protrusions and the scraping blade are integrally formed.
Preferably, the blades and the scrapers are distributed in a staggered manner in the vertical direction; the shape of the scraping blade is spiral; when the scraper rotates, one part of the water pushed by the scraper flows along the surface of the scraper, and the other part of the water flows along the surface of the scraper, so that the resistance of the scraper to water flow is reduced, the scraper can push the water flow to drive sand and stone to spirally flow in the machine body, the separation of organic matters and sand and stone is promoted, the vortex effect in the center of the machine body is improved, the vortex is convenient to bring the organic matters and bacteria separated from the inner wall of the machine body to the rotating rod, and the organic matters are accelerated to enter the round hole and be discharged; according to the invention, the shape of the scraping blade is set to be spiral, so that on one hand, the resistance of water to the scraping blade is weakened, the rotation effect of the scraping blade is improved, and on the other hand, the rotation of the scraping blade to the water in the machine body is improved, the separation of organic matters and sand stone is promoted, the action effect of vortex is improved, the vortex is facilitated to bring out the organic matters and bacteria separated from the inner wall of the machine body, and the practical application effect of the invention is improved.
Preferably, a first groove is formed in the blade plate; a second groove is formed in the scraper; the first groove is slidably connected with a leaf block; a scraping block is connected in the second groove in a sliding manner; the scraping blade is fixedly connected with the scraping block and the leaf block; the blade block is fixedly connected with the bottom of the first groove through a first spring, and the scraping block is fixedly connected with the bottom of the second groove through a second spring; when the scraper blade scraping device is in operation, in the process that a worker drives the rotating rod to rotate through the controller control driving motor, the rotating rod drives the blade plate and the scraper to rotate, the blade block and the scraper block stretch the first spring and the second spring respectively under the action of centrifugal force, the blade block stretches the first spring and stretches out of the first groove, the scraper block stretches out of the second spring and stretches out of the second groove, the blade block and the scraper block push the scraper blade to be tightly attached to the inner wall of the machine body, so that the scraping power degree of the scraper blade on organic matters and bacteria on the inner wall of the machine body is improved, the scraping effect of the scraper blade is effectively improved, and the practical application effect of the scraper blade scraping device is improved.
The invention relates to a domestic sewage treatment method, which is applicable to the domestic sewage treatment device and comprises the following steps:
s1: removing floaters with the diameter being larger than 20mm from the coarse grille pool, removing floaters with the diameter being larger than 5mm from the fine grille pool, and conveying the sewage with the floaters removed from the fine grille pool to a cyclone sand settling machine;
s2: before sewage is discharged into the machine body, a worker firstly controls tap water to fill the machine body of the cyclone sand settling machine through the water inlet through the controller, then controls the tap water to stop through the controller, drives the rotating rod to drive the blade plate and the scraping plate to drive water in the machine body 1 to rotate through the driving motor, then controls sewage to enter through the water inlet through the controller, and the blade block and the scraping block stretch out the first groove and the second groove under the action of centrifugal force at the moment, so that the blade block and the scraping block push the scraping blade to abut against the inner wall of the machine body, and the scraping blade scrapes the inner wall of the machine body along with the rotation of the blade block and the scraping block;
s3: the scraping plate, the blade plate and the scraping plate rotate along with the rotation of the scraping plate, so that the water in the machine body spirally rotates and generates vortex, and organic matters scraped off the inner wall of the machine body are close to the rotating rod by overcoming centrifugal force under the pulling of the vortex, so that the organic matters enter the drain pipe through the round hole and the cavity and are discharged from the drain outlet along the drain pipe;
s4: and conveying the sewage after sand setting to a biochemical tank for biological treatment, removing organic matters in the water, conveying the sewage after biological treatment to a secondary sedimentation tank for mud-water separation, and finally discharging the separated water.
The beneficial effects of the invention are as follows:
1. according to the cyclone sand setting machine, the scraping blades are driven by the scraping blades and the blades to rotate along the inner wall of the machine body, so that the scraping blades scrape off adhered organic matters and bacteria on the inner wall of the machine body, corrosion of the bacteria on the inner wall of the machine body is reduced, the service life of the machine body is prolonged, the rotating rod is arranged, the vortex effect in the machine body is improved, the bacteria and the organic matters of the machine body enter and are discharged through the round holes under the action of the vortex suction force, the purifying amount of the organic matters in the biological treatment process of the next link is effectively improved, the residual amount of the organic matters in the sewage treatment process is reduced, and the effect of domestic sewage treatment is improved.
2. The cyclone sand setting machine used in the invention not only can ensure that the conical bulge can cut water flow and reduce the resistance of the water to the scraping blade, thereby facilitating the scraping of the scraping blade on the inner wall of the machine body, but also can improve the damping force of the scraping blade, reduce the shaking generated by collision with sand in the rotation process of the scraping blade, improve the scraping effect of the scraping blade and improve the practical application effect of the cyclone sand setting machine.
3. According to the cyclone sand setting machine, the shape of the scraping blade is spiral, so that on one hand, the resistance of water to the scraping blade is weakened, the rotation effect of the scraping blade is improved, on the other hand, the rotation of the scraping blade to water in the machine body is improved, the separation of organic matters and sand stones is promoted, the action effect of vortex is improved, the vortex is facilitated to bring out the organic matters and bacteria separated from the inner wall of the machine body, and the practical application effect of the cyclone sand setting machine is improved.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a flow chart of a domestic sewage treatment method in the present invention;
FIG. 2 is a perspective view of a cyclone sand setting machine used in the present invention;
FIG. 3 is a schematic view of a cyclone sand setting machine used in the present invention;
FIG. 4 is a schematic view of a configuration of a louver used in the present invention;
FIG. 5 is a schematic view of the structure of a screed used in the present invention;
in the figure: 1. a body; 11. a water inlet; 12. a water outlet; 13. a drain pipe; 2. a cover; 21. a driving motor; 22. a rotating lever; 221. a cavity; 222. a round hole; 3. a sand hopper; 31. a screw; 32. a servo motor; 4. a blade; 41. a first groove; 42. leaf blocks; 43. a first spring; 5. a scraper; 51. a second groove; 52. scraping blocks; 53. a second spring; 6. a wiper blade; 61. conical protrusions.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 5, the domestic sewage treatment device comprises a cyclone sand setting machine, a machine body 1, a machine cover 2 and a controller; the outer wall of the machine body 1 is provided with a water inlet 11 and a water outlet 12; the lower end of the machine body 1 is fixedly provided with a sand hopper 3, and the sand hopper 3 is rotationally connected with a screw 31; the outer wall of the machine body 1 is fixedly connected with a servo motor 32, and the output end of the servo motor 32 is fixedly connected with a screw 31; the machine cover 2 is fixedly arranged at the upper end of the machine body 1, the driving motor 21 is fixedly connected to the upper end of the machine cover 2, the rotating rod 22 is arranged at the lower end of the machine cover 2, the rotating rod 22 is fixedly connected with the output end of the driving motor 21, the blade plate 4 is fixedly connected to the outer wall of the rotating rod 22, the scraping plate 5 is fixedly connected to the lower end of the rotating rod 22, the scraping plate 5 and one end, close to the inner wall of the machine body 1, of the blade plate 4 are fixedly connected with the scraping plate 6, and the scraping plate 6 is in sliding contact with the inner wall of the machine body 1; a cavity 221 is formed in the rotary rod 22, a round hole 222 communicated with the cavity 221 is formed in the surface of the rotary rod 22, a drain pipe 13 is connected to the lower end of the rotary rod 22 in a rotary sealing mode, one end of the drain pipe 13 is communicated with the cavity 221, and the other end of the drain pipe is communicated with the water outlet 12; the controller is used for controlling the whole cyclone sand settling machine to automatically run;
in the prior art, along with the long-time use of the cyclone sand settling machine, bacteria and other organic matters in sewage are accumulated on the inner wall of the machine body 1, and when sand and stone collide on the inner wall of the machine body 1, residual organic matters on the sand and stone are separated from the surface of the sand and are attached to the inner wall of the machine body 1, so that the organic matters on the inner wall of the machine body 1 are continuously accumulated, bacteria are bred, the inner wall of the machine body 1 is corroded by the bacteria, the service life of the machine body is reduced, the organic matters in water are attached to the inner wall of the machine body 1, the content of the organic matters in water is reduced, the subsequent biological treatment is influenced, and the treatment rate of the organic matters is reduced;
when in work, a worker firstly controls tap water to fill the sand hopper through the water inlet 11, then controls the tap water to stop through the controller, then fills sewage into the machine body 1 of the cyclone sand settling machine from the water inlet, and controls the driving motor 21 to drive the rotating rod 22 to rotate, so that the rotating rod 22 drives the blade plate 4 and the scraping plate 5 to rotate, thereby enabling the scraping plate 6 to rotate along with the blade plate 4 and the scraping plate 5 and simultaneously driving water in the machine body 1 to rotate, at the moment, the controller controls the sewage to enter from the water inlet 11, so that sand in the sewage rotates along with the water in the machine body 1 and performs centrifugal motion, because organic matters in the sand water are subject to different centrifugal forces, sand is thrown to the inner wall of the machine body 1 and falls into the sand hopper 3 under the action of gravity, and the organic matters in the sand water are separated from sand in the middle of the machine body 1, and the drain pipe 13 is connected with an external water pump through starting the water pump, the water and organic matters in the middle of the machine body 1 are sucked into the cavity 221 through the round hole 222 and then enter the drain pipe 13 through the cavity 221, so that the water and organic matters in the drain pipe 13 are discharged out of the machine body 1 through the water outlet 12, when sand and stone are accumulated in the sand hopper 3, the controller controls the servo motor 32 to drive the screw rod 31 to rotate, so that the screw rod 31 discharges sand and stone in the sand hopper 3 out of the sand hopper 3, when the scraping blade 6 rotates along with the blade 4, the scraping blade 6 can scrape the inner wall of the machine body 1, so that the organic matters and bacteria adhered to the inner wall of the machine body 1 are scraped by the scraping blade 6, the adhesion of the organic matters to the inner wall is avoided, the breeding of bacteria on the inner wall of the machine body 1 is reduced, the corrosion effect of bacteria on the inner wall of the machine body 1 is weakened, the service life of the inner wall of the machine body 1 is prolonged, the scraped bacteria and the organic matters are small in density, the gravity of the bacteria and the organic matters is smaller than that of sand and stone, the centrifugal force born by bacteria and organic matters is smaller than that born by sand, the rotating rod 22 rotates and absorbs water, so that water in the machine body 1 generates vortex, the scraped bacteria and organic matters near the vortex overcome the centrifugal force born by the vortex under the action of vortex suction force, and the scraped bacteria and organic matters enter the rotating rod 22 through the round hole 222 under the drive of the vortex, and finally are discharged;
according to the invention, through the arrangement of the scraping blade 6, the scraping blade 6 rotates along the inner wall of the machine body 1 under the drive of the scraping blade 5 and the blade plate 4, so that the scraping blade 6 scrapes off adhered organic matters and bacteria on the inner wall of the machine body 1, thereby reducing the corrosion of the bacteria on the inner wall of the machine body 1, prolonging the service life of the machine body 1, improving the vortex effect in the machine body 1 by the arrangement of the rotating rod 22, enabling the bacteria and the organic matters of the machine body 1 to enter and be discharged through the round hole 222 under the action of the vortex suction force, further effectively improving the purifying amount of the organic matters in the biological treatment process of the next link, reducing the residual amount of the organic matters in the sewage treatment process, and improving the effect of domestic sewage treatment.
As one embodiment of the invention, the scraping blade 6 is obliquely arranged, and the included angle between the scraping blade 5 and the inner wall of the machine body 1 is 30-50 degrees; when the scraper blade 6 scrapes the inner wall of the machine body 1, on one hand, the scraper blade 6 is obliquely arranged, so that an inclination angle of 30-50 degrees is generated between the scraper blade 6 and the inner wall of the machine body 1, when the blade plate 4 and the scraper blade 5 drive the scraper blade 6 to rotate, one end of the scraper blade 6, which is in contact with the inner wall of the machine body 1, is used for shoveling organic matters and bacteria adhered to the inner wall of the machine body 1, so that the scraping effect of the scraper blade 6 on the organic matters on the inner wall of the machine body 1 is improved, on the other hand, the organic matters flow along the upper surface of the scraper blade 5 along with water flow in the scraping process of the inner wall of the machine body 1, the resistance of the water flow on the scraper blade 5 is reduced, the rotating speed of the scraper blade 5 is improved, the stirring effect of the scraper blade 5 on the water flow in the machine body 1 is improved, the centrifugal force born by sand is improved, the separation between the sand and the organic matters is accelerated, the adhesion amount of the organic matters on the sand and the surface is reduced, and the adhesion amount of the organic matters on the inner wall of the machine body 1 is reduced, so that the practical application effect is effectively improved.
As an embodiment of the present invention, the upper end surface of the wiper blade 6 is intermittently provided with conical protrusions 61, and the conical protrusions 61 and the wiper blade 6 are integrally formed; when the scraper blade 6 scrapes off organic matters adhered to the inner wall of the machine body 1, the organic matters flow out along the gap between two adjacent conical bulges 61 along with water flow, the structure of the scraper blade 5 is enhanced by the arrangement of the conical bulges 61, and when the water flows through the conical bulges 61, the conical bulges 61 have a cutting effect on the water flow, so that the resistance of the water to the scraper blade 6 can be reduced by the conical bulges 61, the water flows through two sides of the conical bulges 61, the conical bulges 61 play a role in guiding the water flow, the scraper blade 6 rotates to be contacted with sand and impacted, the scraper blade 6 is rocked, the stability of the scraper blade is reduced, and therefore, the damping force of the scraper blade 6 is improved, so that the rocking of the scraper blade 6 is weakened, and the scraper blade 6 can scrape the organic matters on the inner wall of the machine body 1 stably; according to the invention, through the arrangement of the conical protrusions 61, the conical protrusions 61 can cut water flow, the resistance of water to the scraping blade 6 is reduced, the scraping blade 6 is convenient to scrape the inner wall of the machine body 1, the damping force of the scraping blade 6 is improved, the shaking generated by collision with sand and stones in the rotation process of the scraping blade 6 is reduced, the scraping effect of the scraping blade 6 is improved, the practical application effect of the scraping blade is improved, and the structural strength of the scraping blade 6 is increased and the service life of the scraping blade 6 is prolonged due to the fact that the conical protrusions 61 and the scraping blade 66 are integrally formed.
As an embodiment of the present invention, the blades 4 and the scrapers 5 are staggered in the vertical direction; the shape of the scraping blade 6 is spiral; when the scraper blade 6 rotates, a part of water pushed by the scraper blade 6 flows along the surface of the scraper blade 6, and the other part of water flows along the surface of the scraper blade 6, so that the resistance of the scraper blade 6 to water flow is reduced, the scraper blade 6 can push the water flow to drive sand and stone to spirally flow in the machine body 1, the separation of organic matters and sand and stone is promoted, the vortex effect of the center of the machine body 1 is improved, the vortex is facilitated to bring the organic matters and bacteria separated from the inner wall of the machine body 1 to the rotating rod, and the organic matters are accelerated to enter the round hole 222 and are discharged; according to the invention, the shape of the scraping blade 6 is in a spiral shape, so that on one hand, the resistance of water to the scraping blade 6 is weakened, the rotation effect of the scraping blade 6 is improved, and on the other hand, the rotation of the scraping blade 6 to the water in the machine body 1 is improved, the separation of organic matters and sand stones is promoted, the action effect of vortex is improved, the vortex is facilitated to bring out the organic matters and bacteria separated from the inner wall of the machine body 1, and the practical application effect of the invention is improved.
As an embodiment of the present invention, the inside of the blade plate 4 is provided with a first groove 41; a second groove 51 is formed in the scraper 5; the first groove 41 is slidably connected with a blade block 42; a scraping block 52 is connected in a sliding manner in the second groove 51; the scraping blade 6 is fixedly connected with the scraping block 52 and the blade block 42; the blade block 42 is fixedly connected with the bottom of the first groove 41 through a first spring 43, and the scraping block 52 is fixedly connected with the bottom of the second groove 51 through a second spring 53; when working, in the process that a worker controls the driving motor 21 to drive the rotating rod 22 to rotate through the controller, the rotating rod 22 drives the blade plate 4 and the scraping plate 5 to rotate, so that the blade block 42 and the scraping block 52 respectively stretch the first spring 43 and the second spring 53 under the action of centrifugal force, the blade block 42 stretches the first spring 43 and stretches out of the first groove 41, the scraping block 52 stretches out of the second spring 53 and stretches out of the second groove 51, the blade block 42 and the scraping block 52 push the scraping plate 6 to be tightly attached to the inner wall of the machine body 1, the scraping power degree of the scraping plate 6 on organic matters and bacteria on the inner wall of the machine body 1 is improved, the scraping effect of the scraping plate 6 is effectively improved, and the practical application effect of the invention is further improved.
The invention relates to a domestic sewage treatment method, which is applicable to the domestic sewage treatment device and comprises the following steps:
s1: removing floaters with the diameter being larger than 20mm from the coarse grille pool, removing floaters with the diameter being larger than 5mm from the fine grille pool, and conveying the sewage with the floaters removed from the fine grille pool to a cyclone sand settling machine;
s2: before sewage is discharged into the machine body 1, a worker firstly controls tap water to fill the machine body 1 of the cyclone sand settling machine through the water inlet 11 through the controller, then controls the tap water to stop through the controller, drives the rotating rod 22 to drive the blade plate 4 and the scraping plate 5 to drive water in the machine body 11 to rotate, then controls sewage to enter through the water inlet 11 through the controller, and at the moment, the blade block 42 and the scraping block 52 stretch out the first groove 41 and the second groove 51 under the centrifugal force action, so that the blade block 42 and the scraping block 52 push the scraping blade 6 to abut against the inner wall of the machine body 1, and the scraping blade 6 scrapes the inner wall of the machine body 1 along with the rotation of the blade block 42 and the scraping block 52;
s3: as the scraping blade 6 rotates, the scraping blade 5, the blade plate 4 and the scraping blade 6 drive the water in the machine body 1 to rotate, so that the water in the machine body 1 spirally rotates and generates vortex, organic matters scraped off the inner wall of the machine body 1 are close to the rotating rod 22 by overcoming centrifugal force under the pulling of the vortex, and the organic matters enter the drain pipe 13 through the round hole 222 and the cavity 221 and are discharged from the drain outlet along the drain pipe 13;
s4: and conveying the sewage after sand setting to a biochemical tank for biological treatment, removing organic matters in the water, conveying the sewage after biological treatment to a secondary sedimentation tank for mud-water separation, and finally discharging the separated water.
The specific working procedure is as follows:
during operation, a worker firstly controls tap water to fill the sand hopper through the water inlet 11, then controls the tap water to stop through the controller, then fills sewage into the machine body 1 of the cyclone sand settling machine from the water inlet, and controls the driving motor 21 to drive the rotating rod 22 to rotate, so that the rotating rod 22 drives the blade plate 4 and the scraping plate 5 to rotate, and the scraping plate 6 rotates along with the blade plate 4 and the scraping plate 5, and simultaneously drives water in the machine body 1 to rotate, at the moment, the controller controls the sewage to enter from the water inlet 11, so that sand in the sewage rotates along with the water in the machine body 1 and performs centrifugal motion, because organic matters in the sand water are subjected to different centrifugal forces, the sand is thrown to the inner wall of the machine body 1 and falls into the sand hopper 3 under the action of gravity, and the organic matters in the sand water are separated from the sand in the middle of the machine body 1, and the water drain pipe 13 is connected with an external water pump through starting the water pump, the water and organic matters in the middle of the machine body 1 are sucked into the cavity 221 through the round hole 222 and then enter the drain pipe 13 through the cavity 221, so that the water and organic matters in the drain pipe 13 are discharged out of the machine body 1 through the water outlet 12, when sand and stone are accumulated in the sand hopper 3, the controller controls the servo motor 32 to drive the screw rod 31 to rotate, so that the screw rod 31 discharges sand and stone in the sand hopper 3 out of the sand hopper 3, when the scraping blade 6 rotates along with the blade 4, the scraping blade 6 can scrape the inner wall of the machine body 1, so that the organic matters and bacteria adhered to the inner wall of the machine body 1 are scraped by the scraping blade 6, the adhesion of the organic matters to the inner wall is avoided, the breeding of bacteria on the inner wall of the machine body 1 is reduced, the corrosion effect of bacteria on the inner wall of the machine body 1 is weakened, the service life of the inner wall of the machine body 1 is prolonged, the scraped bacteria and the organic matters are small in density, the gravity of the bacteria and the organic matters is smaller than that of sand and stone, the centrifugal force born by bacteria and organic matters is smaller than that born by sand, the rotating rod 22 rotates and absorbs water, so that water in the machine body 1 generates vortex, the scraped bacteria and organic matters near the vortex overcome the centrifugal force born by the vortex under the action of vortex suction force, and the scraped bacteria and organic matters enter the rotating rod 22 through the round hole 222 under the drive of the vortex, and finally are discharged; when the scraping blade 6 scrapes the inner wall of the machine body 1, the scraping blade 6 is obliquely arranged, so that an inclination angle of 30-50 degrees is generated between the scraping blade 6 and the inner wall of the machine body 1, when the scraping blade 5 and the blade 4 of the machine body 1 drive the scraping blade 6 to rotate, one end of the scraping blade 6, which is in contact with the inner wall of the machine body 1, is used for shoveling organic matters and bacteria adhered to the inner wall of the machine body 1, on the other hand, the organic matters can flow along the upper surface of the scraping blade 5 along with water flow in the scraping process of the inner wall of the machine body 1, so that the resistance of the water flow to the scraping blade 5 is reduced, the rotating speed of the scraping blade 5 is improved, the stirring effect of the scraping blade 5 on the water flow in the machine body 1 is improved, the centrifugal force born by sand is improved, separation between sand and the organic matters is accelerated, the adhesion amount of the organic matters on the sand surface is reduced, and the adhesion amount of the organic matters on the inner wall of the machine body 1 is reduced.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a domestic sewage treatment device, includes whirl sand setting machine, its characterized in that: the cyclone sand setting machine also comprises a machine body (1), a machine cover (2) and a controller; the outer wall of the machine body (1) is provided with a water inlet (11) and a water outlet (12); the sand hopper (3) is fixedly arranged at the lower end of the machine body (1), and the screw (31) is rotationally connected with the sand hopper (3); the outer wall of the machine body (1) is fixedly connected with a servo motor (32), and the output end of the servo motor (32) is fixedly connected with a screw rod (31); the machine cover (2) is fixedly arranged at the upper end of the machine body (1), the driving motor (21) is fixedly connected to the upper end of the machine cover (2), the rotating rod (22) is arranged at the lower end of the machine cover (2), the rotating rod (22) is fixedly connected with the output end of the driving motor (21), the outer wall of the rotating rod (22) is fixedly connected with the blade plate (4), the lower end of the rotating rod (22) is fixedly connected with the scraping plate (5), the scraping plate (5) and one end, close to the inner wall of the machine body (1), of the blade plate (4) are fixedly connected with the scraping plate (6), and the scraping plate (6) is in sliding contact with the inner wall of the machine body (1); a cavity (221) is formed in the rotating rod (22), a round hole (222) communicated with the cavity (221) is formed in the surface of the rotating rod (22), a drain pipe (13) is connected to the lower end of the rotating rod (22) in a rotating and sealing mode, one end of the drain pipe (13) is communicated with the cavity (221), and the other end of the drain pipe is communicated with the water outlet (12); the controller is used for controlling the whole cyclone sand setting machine to automatically run;
the scraping blade (6) is obliquely arranged, and an included angle between the scraping blade (5) and the inner wall of the machine body (1) is 30-50 degrees;
the blades (4) and the scrapers (5) are distributed in a staggered manner in the vertical direction; the shape of the scraping blade (6) is spiral.
2. A domestic sewage treatment apparatus according to claim 1, wherein: conical protrusions (61) are intermittently distributed on the upper end face of the scraping blade (6), and the conical protrusions (61) and the scraping blade (6) are integrally formed.
3. A domestic sewage treatment apparatus according to claim 1, wherein: a first groove (41) is formed in the blade plate (4); a second groove (51) is formed in the scraper (5); the first groove (41) is slidably connected with a blade block (42); a scraping block (52) is connected in a sliding manner in the second groove (51); the scraping blade (6) is fixedly connected with the scraping block (52) and the blade block (42); the blade block (42) is fixedly connected with the bottom of the first groove (41) through a first spring (43), and the scraping block (52) is fixedly connected with the bottom of the second groove (51) through a second spring (53).
4. A domestic sewage treatment method, which is applicable to a domestic sewage treatment apparatus as claimed in any one of claims 1 to 3, characterized in that: the method comprises the following steps:
s1: removing floaters with the diameter being larger than 20mm from the coarse grille pool, removing floaters with the diameter being larger than 5mm from the fine grille pool, and conveying the sewage with the floaters removed from the fine grille pool to a cyclone sand settling machine;
s2: before sewage is discharged into the machine body (1), a worker firstly controls tap water to fill the machine body (1) of the cyclone sand settling machine through the water inlet (11), then controls tap water to stop through the controller, drives the rotating rod (22) to drive the blade plate (4) and the scraping plate (5) to drive water in the machine body (1) to rotate, then controls sewage to enter through the water inlet (11) through the controller, and then the blade block (42) and the scraping block (52) extend out of the first groove (41) and the second groove (51) under the action of centrifugal force, so that the blade block (42) and the scraping block (52) push the scraping blade (6) to abut against the inner wall of the machine body (1), and the scraping blade (6) scrapes the inner wall of the machine body (1) along with the rotation of the blade block (42) and the scraping block (52);
s3: along with the rotation of the scraping blade (6), the scraping blade (5), the blade plate (4) and the scraping blade (6) drive water in the machine body (1) to rotate, so that the water in the machine body (1) spirally rotates and generates vortex, organic matters scraped off the inner wall of the machine body (1) are close to the rotating rod (22) by overcoming centrifugal force under the pulling of the vortex, and the organic matters enter the drain pipe (13) through the round hole (222) and the cavity (221) and are discharged from the drain outlet along the drain pipe (13);
s4: and conveying the sewage after sand setting to a biochemical tank for biological treatment, removing organic matters in the water, conveying the sewage after biological treatment to a secondary sedimentation tank for mud-water separation, and finally discharging the separated water.
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