CN111704318A - Sewage treatment process based on rotary drum type grating machine - Google Patents
Sewage treatment process based on rotary drum type grating machine Download PDFInfo
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- CN111704318A CN111704318A CN202010613753.5A CN202010613753A CN111704318A CN 111704318 A CN111704318 A CN 111704318A CN 202010613753 A CN202010613753 A CN 202010613753A CN 111704318 A CN111704318 A CN 111704318A
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- frame
- grating
- grating frame
- sewage
- side wall
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a sewage treatment process based on a rotary drum type grating machine, which comprises the following steps: s1, coarse filtration; s2, fine filtering; s3, biological treatment; s4, removing sludge; s5, disinfecting and discharging water; the rotary drum type grating machine used in the sewage treatment process comprises a base, a water inlet is formed in the side wall of the base, a grating frame is connected to the side wall of the base in a rotating mode, the grating frame is formed by welding an inner grating frame and an outer grating frame, the inner grating frame is made of a material with high plasticity, the outer grating frame is made of a high-strength material, specifically, the inner grating frame is made of a plastic material with good deformation capacity, and the outer grating frame is made of a metal material with high strength. The inner grid frame can be sunken downwards under the action of magnetic force, so that part of sundries remained on the inner grid frame are forced to fall into the material conveying cylinder, water flow is not needed to wash the grid frame, the energy is saved, the environment is protected, and the pressure of a sewage treatment system is reduced.
Description
Technical Field
The invention relates to the technical field related to sewage treatment, in particular to a sewage treatment process based on a rotary drum type grating machine.
Background
In the process of sewage treatment, a drum type grating machine is often used for filtering garbage impurities in sewage.
In order to keep a good filtering effect of the grid frame in the drum type grid machine, the grid frame needs to be continuously washed by water flow so as to wash away impurities attached to the grid frame, the cleaning mode consumes a large amount of water resources, meanwhile, water flow driving equipment such as a water pump and the like needs to be installed, the equipment is large in size and high in energy consumption, in addition, the washed water flow can be discharged along with sewage, the water quantity of the sewage is greatly increased, and the pressure of a sewage subsequent treatment system is increased.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a sewage treatment process based on a rotary drum type grating machine.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sewage treatment process based on a rotary drum type grating machine comprises the following steps:
s1, coarse filtration, namely, guiding the sewage to be treated into the intercepting well through a coarse filter screen, and fishing and removing larger dregs;
s2, fine filtering, namely filtering the sewage in the intercepting well through a drum type grating machine, and then guiding the filtered sewage into a desilting basin for precipitation, so that smaller dregs in the sewage can be salvaged and removed;
s3, biological treatment, namely discharging the sewage precipitated in the sand settling tank for a period of time into a biochemical tank, and removing BOD5 and SS and nitrogen or phosphorus in various forms in the sewage by adopting an activated sludge method;
s4, removing sludge, namely guiding the sewage treated in the biochemical tank into a final sedimentation tank, and removing residual sludge and return sludge;
s5, discharging disinfected water, introducing the water after removing the sludge into a D-shaped filter tank, further reducing SS, and discharging clean water after disinfecting;
the rotary drum type grating machine used in the sewage treatment process comprises a base, a water inlet is formed in the side wall of the base, a grating frame is connected to the side wall of the base in a rotating mode, the grating frame is formed by welding an inner grating frame and an outer grating frame, the inner grating frame is made of materials with high plasticity, the outer grating frame is made of high-strength materials, a plurality of supporting rods are welded to the inner wall of the inner grating frame and are multiple, the supporting rods are far away from a material conveying screw rod of the common fixedly connected with of one end of the inner grating frame inner wall, a material conveying cylinder is sleeved outside the material conveying screw rod, a material inlet is formed in the side wall of the material conveying cylinder, a plurality of slag blocking plates made of magnetic materials are fixedly connected to the inner wall of the inner grating frame, magnetic plates are fixedly connected to the side wall of the base, and the inner grating frame and the outer grating frame are.
Preferably, fixedly connected with flexible gasbag on the inner wall of bars frame outward, just flexible gasbag is made by the rubber materials that elasticity is good, flexible gasbag keeps away from the one end fixed connection of bars frame inner wall outward on the lateral wall of bars frame, the one-way inlet port with the inside intercommunication of flexible gasbag is seted up to the lateral wall of bars frame outward, the one-way venthole with the inside intercommunication of flexible gasbag is seted up to the lateral wall of bars frame in, just one-way venthole is the angle slope setting with the bars seam of bars frame in.
The invention has the following beneficial effects:
1. the grid frame is composed of the inner grid frame and the outer grid frame which are made of different materials, when garbage at the bottom of the inner grid frame runs to the top end of the inner grid frame, the inner grid frame can be sunken downwards under the action of magnetic force, so that part of sundries remained on the inner grid frame are forced to fall into the material conveying cylinder, the grid frame is not required to be washed by water flow, energy is saved, the environment is protected, and the pressure of a sewage treatment system is reduced;
2. the spring is arranged between the inner grid frame and the outer grid frame, so that the spring can stretch continuously in the rotating process of the grid frame, the inner grid frame can shake continuously, stubborn sundries partially embedded in grid gaps in the grid frame can be shaken off, and the filtering performance of the grid frame is further improved;
3. the spring is replaced by the elastic telescopic air bag arranged between the inner grid frame and the outer grid frame, the telescopic function of the spring can be achieved, shaking of the inner grid frame is caused, meanwhile, the telescopic air bag which continuously stretches and retracts continuously exhausts air into the grid joint, and accordingly residual sundries in the grid joint are promoted to fall off.
Drawings
FIG. 1 is a schematic structural diagram of a drum type grating machine according to an embodiment of the present invention;
FIG. 2 is a schematic side view of the structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic structural view of a drum type grating machine according to a second embodiment of the present invention;
fig. 4 is an enlarged schematic view of a structure in fig. 3.
In the figure: the device comprises a base 1, a water inlet 2, a grid frame 3, an inner grid frame 31, an outer grid frame 32, a material conveying screw rod 4, a support rod 5, a material conveying cylinder 6, a material inlet 61, a magnetic plate 7, a spring 8, a slag blocking plate 9, a telescopic air bag 10, a one-way air inlet 101 and a one-way air outlet 102.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, 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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The first embodiment is as follows: the expansion point, the rotation power of the material conveying screw, the materials of the inner and outer grid frames, the function of the slag trap, and the unidirectional gas inlet and outlet directions of all magnetic and non-magnetic components.
Referring to fig. 1-2, a sewage treatment process based on a drum type grating machine includes the following steps:
s1, coarse filtration, namely, guiding the sewage to be treated into the intercepting well through a coarse filter screen, and fishing and removing larger dregs;
s2, fine filtering, namely filtering the sewage in the intercepting well through a drum type grating machine, and then guiding the filtered sewage into a desilting basin for precipitation, so that smaller dregs in the sewage can be salvaged and removed;
s3, biological treatment, namely discharging the sewage precipitated in the sand settling tank for a period of time into a biochemical tank, and removing BOD5 and SS and nitrogen or phosphorus in various forms in the sewage by adopting an activated sludge method;
s4, removing sludge, namely guiding the sewage treated in the biochemical tank into a final sedimentation tank, and removing residual sludge and return sludge;
s5, discharging disinfected water, introducing the water after removing the sludge into a D-shaped filter tank, further reducing SS, and discharging clean water after disinfecting;
the rotary drum type grating machine used in the sewage treatment process comprises a base 1, a water inlet 2 is formed in the side wall of the base 1, a grating frame 3 is connected to the side wall of the base 1 in a rotating mode, the grating frame 3 is formed by welding an inner grating frame 31 and an outer grating frame 32, the inner grating frame 31 is made of a material with high plasticity, the outer grating frame 32 is made of a high-strength material, specifically, the inner grating frame 31 is made of a plastic material with good deformation capacity, and the outer grating frame 32 is made of a metal material with high strength.
The welding has a plurality of bracing pieces 5 on the inner wall of interior bars frame 31, and the common fixedly connected with of one end that interior bars frame 31 inner wall was kept away from to a plurality of bracing pieces 5 defeated material screw rod 4, and defeated material screw rod 4 overcoat is equipped with defeated feed cylinder 6, and it should be said that, install the defeated material screw rod 4 pivoted driver part of drive outside the device, owing to irrelevant with this scheme motif, so locate in the picture.
And the side wall of the material conveying cylinder 6 is provided with a feeding port 61, the inner wall of the inner grid frame 31 is fixedly connected with a plurality of slag baffles 9 made of magnetic materials, the side wall of the base 1 is fixedly connected with a magnetic plate 7, it should be noted that the magnetic plate 7 is also made of magnetic materials, and in an initial state, the magnetic plate 7 and the slag baffles 9 adjacent to and opposite to the magnetic plate 7 are opposite in homopolar. So that a repulsive force is generated therebetween and the upper end of the inner grill 31 is depressed downward as shown in fig. 2.
The inner grid frame 31 is connected with the outer grid frame 32 through a spring 8, one end of the spring 8 is fixedly connected to the side wall of the inner grid frame 31, and the other end of the spring 8 is fixedly connected to the inner wall of the outer grid frame 32.
In this embodiment, the sewage flows into the grid frame 3 along the water inlet 2, and is discharged after being filtered by the grid frame 3. In the process, the material conveying screw rod 4 continuously rotates, the grid frame 3 synchronously rotates under the driving of the support rod 5, and impurities filtered out from the sewage are left at the bottom in the inner grid frame 31. Due to the interception function of the slag baffle 9, sundries remained at the bottom in the inner grid frame 31 are conveyed to the inner top of the inner grid frame 31, fall into the material conveying cylinder 6 along the feeding port 61 under the action of gravity and are finally conveyed away by the material conveying screw rod 4.
When the slag blocking plate 9 rotates to the inner top along with the grid frame 3, the slag blocking plate 9 is opposite to the magnetic plate 7 in the same polarity, the inner top of the inner grid frame 31 is sunken towards the axis direction (as shown in fig. 2) under the action of magnetic force, so that part of sundries remained on the inner wall of the inner grid frame 3 are difficult to attach, and fall into the material conveying cylinder 6 downwards by means of dead weight, and when the slag blocking plate 9 is far away from the magnetic plate 7, the spring 8 pulls and resets the sunken inner wall of the flexible inner grid frame 31. Therefore, the inner wall of the inner grid frame 31 can be continuously sunken and reset in the rotating process of the grid frame 3, so that the inner wall of the inner grid frame 31 can be continuously shaken, and part of stubborn sundries remained in the grid gaps of the inner grid frame 31 can be shaken off, so that the good permeability and filtering effect of the inner grid frame 31 can be kept.
Example two:
referring to fig. 3-4, the difference from the first embodiment is that the inner wall of the outer grid frame 32 is fixedly connected with the telescopic airbag 10, the telescopic airbag 10 is made of a rubber material with good elasticity, one end of the telescopic airbag 10 away from the inner wall of the outer grid frame 32 is fixedly connected to the side wall of the inner grid frame 31, the side wall of the outer grid frame 32 is provided with a one-way air inlet 101 communicated with the inside of the telescopic airbag 10, the side wall of the inner grid frame 31 is provided with a one-way air outlet 102 communicated with the inside of the telescopic airbag 10, and the one-way air outlet 102 and the grid gap of the inner grid frame 31 are arranged in an inclined angle.
It should be noted that the one-way air inlet hole 101 only allows air to flow into the airbag 10 from the one-way air inlet hole 101, and the one-way air outlet hole 102 only allows air to flow into the one-way air outlet hole 102 from the airbag 10. During specific manufacturing, only the check valve is needed to be arranged in the air inlet hole or the air outlet hole.
In addition, the one-way air outlet holes 102 obliquely arranged at an angle with the grid gaps of the inner grid frame 31 can provide inward impact force to the sundries in the grid gaps during air exhaust, and the sundries clamped in the grid gaps can be blown into the inner grid frame 31 to prevent the grid gaps from being blocked.
In this embodiment, the telescopic airbag 10 is disposed between the inner grill frame 31 and the outer grill frame 32 instead of the spring, and the telescopic airbag 10 having a good elasticity can achieve the telescopic function of the spring. In addition, when the slag trap 9 at a certain position is close to the magnetic plate 7, under the pushing of magnetic force, the slag trap 9 moves downwards and extends the telescopic air bag 10, at the moment, the internal space of the telescopic air bag 10 is increased, negative pressure is generated, and air is sucked into the telescopic air bag 10 through the one-way air inlet hole 101. When the slag trap 9 is far away from the magnetic plate 7, the elastic telescopic air bag 10 begins to contract and discharges the air in the elastic telescopic air bag from the one-way air outlet hole 102, the discharged air is blown out from the grid seam of the inner grid frame 31, small parts of fine impurities mixed in the grid seam can be blown off, the penetrating effect of the inner grid frame 31 is further improved, and meanwhile, the sewage filtering treatment efficiency is also improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. A sewage treatment process based on a rotary drum type grating machine is characterized by comprising the following steps:
s1, coarse filtration, namely, guiding the sewage to be treated into the intercepting well through a coarse filter screen, and fishing and removing larger dregs;
s2, fine filtering, namely filtering the sewage in the intercepting well through a drum type grating machine, and then guiding the filtered sewage into a desilting basin for precipitation, so that smaller dregs in the sewage can be salvaged and removed;
s3, biological treatment, namely discharging the sewage precipitated in the sand settling tank for a period of time into a biochemical tank, and removing BOD5 and SS and nitrogen or phosphorus in various forms in the sewage by adopting an activated sludge method;
s4, removing sludge, namely guiding the sewage treated in the biochemical tank into a final sedimentation tank, and removing residual sludge and return sludge;
s5, discharging disinfected water, introducing the water after removing the sludge into a D-shaped filter tank, further reducing SS, and discharging clean water after disinfecting;
the drum type grating machine used in the sewage treatment process comprises a base (1), a water inlet (2) is formed in the side wall of the base (1), a grating frame (3) is connected to the side wall of the base (1) in a rotating mode, the grating frame (3) is formed by welding an inner grating frame (31) and an outer grating frame (32), the inner grating frame (31) is made of a material with high plasticity, the outer grating frame (32) is made of a high-strength material, a plurality of support rods (5) are welded to the inner wall of the inner grating frame (31), one ends, far away from the inner wall of the inner grating frame (31), of the support rods (5) are fixedly connected with a material conveying screw rod (4) together, a material conveying cylinder (6) is sleeved outside the material conveying screw rod (4), a material inlet (61) is formed in the side wall of the material conveying cylinder (6), a plurality of slag blocking plates (9) made of a magnetic material are fixedly connected to the inner wall of the inner grating frame (31), the magnetic plate (7) is fixedly connected to the side wall of the base (1), and the inner grid frame (31) is connected with the outer grid frame (32) through the spring (8).
2. The sewage treatment process based on the rotary drum type grating machine as claimed in claim 1, wherein a telescopic air bag (10) is fixedly connected to the inner wall of the outer grating frame (32), the telescopic air bag (10) is made of rubber materials with good elasticity, one end, far away from the inner wall of the outer grating frame (32), of the telescopic air bag (10) is fixedly connected to the side wall of the inner grating frame (31), a one-way air inlet hole (101) communicated with the inside of the telescopic air bag (10) is formed in the side wall of the outer grating frame (32), a one-way air outlet hole (102) communicated with the inside of the telescopic air bag (10) is formed in the side wall of the inner grating frame (31), and the one-way air outlet hole (102) and the grating seam of the inner grating frame (31) are obliquely arranged at an angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010613753.5A CN111704318A (en) | 2020-06-30 | 2020-06-30 | Sewage treatment process based on rotary drum type grating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010613753.5A CN111704318A (en) | 2020-06-30 | 2020-06-30 | Sewage treatment process based on rotary drum type grating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111704318A true CN111704318A (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010613753.5A Withdrawn CN111704318A (en) | 2020-06-30 | 2020-06-30 | Sewage treatment process based on rotary drum type grating machine |
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| CN (1) | CN111704318A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113354132A (en) * | 2021-04-28 | 2021-09-07 | 江苏工大环保有限公司 | Grating machine for graded slag removal sewage treatment |
-
2020
- 2020-06-30 CN CN202010613753.5A patent/CN111704318A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113354132A (en) * | 2021-04-28 | 2021-09-07 | 江苏工大环保有限公司 | Grating machine for graded slag removal sewage treatment |
| CN113354132B (en) * | 2021-04-28 | 2022-10-14 | 江苏工大环保有限公司 | Grating machine for sewage treatment by grading slag removal |
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Application publication date: 20200925 |