CN109464846B - Layered mechanical automatic backwashing sewage treatment device - Google Patents
Layered mechanical automatic backwashing sewage treatment device Download PDFInfo
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- CN109464846B CN109464846B CN201910023324.XA CN201910023324A CN109464846B CN 109464846 B CN109464846 B CN 109464846B CN 201910023324 A CN201910023324 A CN 201910023324A CN 109464846 B CN109464846 B CN 109464846B
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- 239000010865 sewage Substances 0.000 title claims abstract description 116
- 238000011001 backwashing Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 133
- 238000001914 filtration Methods 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000011010 flushing procedure Methods 0.000 claims abstract description 19
- 238000007667 floating Methods 0.000 claims description 30
- 238000001223 reverse osmosis Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 description 19
- 238000001764 infiltration Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000010564 aerobic fermentation Methods 0.000 description 1
- -1 and then Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The application belongs to the technical field of sewage treatment, and particularly relates to a layered mechanical automatic backwashing sewage treatment device. The outside of the device is integrally in a box structure and comprises a plurality of layers of layered water filtering parts and a back flushing control part; wherein, the bottom of the box body is provided with a water outlet, and a sealing valve for sealing the water outlet is matched with the water outlet in the box body; the sealing valve is opened or closed by a sewage lever seal arranged outside the box body; and a sewage draining port is arranged at the bottom of the tank body and corresponds to the top opening of the submerged tank sealed by the sewage lever. The application has ingenious structural design, and besides the sewage is pumped by power, the whole back flushing process can realize mechanical automatic back flushing without more manual intervention, so the operation cost is lower; on the other hand, the layered structure design can be suitable for sewage treatment of different scales, and meanwhile, the device is convenient to prepare into a mobile sewage treatment device, so that the device is suitable for the requirements of different application scenes.
Description
Technical Field
The application belongs to the technical field of sewage treatment, and particularly relates to a layered mechanical automatic backwashing sewage treatment device.
Background
With the improvement of urban level and the rapid expansion of population scale, the urban sewage treatment requirements are also higher and higher, wherein one of the important indexes of urban sewage treatment is whether the COD value reaches the standard. In the prior art, the main process flow of sewage treatment is as follows: firstly, solid-liquid separation (sedimentation tank) is carried out on sewage, and then, COD value is reduced through certain biochemical treatment (aeration treatment for aerobic fermentation) so as to realize standard discharge. One of the main disadvantages of this approach is that the sewage treatment plant needs to occupy a large area of land, and the sewage treatment speed is slow, which makes it difficult to meet the actual sewage treatment requirements.
In combination with the existing sewage treatment process, a series of new sewage treatment devices and processes are developed and designed in the prior art to meet the technical requirements of low energy consumption, low cost, low occupation of land and the like, for example: a three-ditch oxidation ditch method, an SBR method, a UNITANK technology, a Biological Aerated Filter (BAF), a Membrane Bioreactor (MBR) and a series of novel high-efficiency sewage treatment technologies. However, in general, the existing treatment processes or devices still have certain disadvantages of low treatment speed, high treatment cost and the like, and due to the huge sewage throughput, further development and design of the sewage treatment device are still necessary to better meet the actual sewage treatment needs.
Disclosure of Invention
The application aims to provide a layered mechanical automatic backwashing sewage treatment device, thereby laying a foundation for the rapid treatment of sewage.
The technical scheme adopted by the application is detailed as follows.
The external whole of the device is in a box structure, and the box comprises a plurality of layers of layered water filtering parts and a back flushing control part according to different functions;
wherein, the bottom of the box body is provided with a water outlet, and a sealing valve for sealing the water outlet is matched with the water outlet in the box body; the sealing valve is opened or closed by a sewage lever seal arranged outside the box body; meanwhile, the bottom of the tank body is provided with a sewage draining port, and the sewage draining port corresponds to the top opening of the submerged tank sealed by the sewage lever;
the sewage lever seal has the specific structure that: the outer part of the bottom plate of the box body is provided with a fixed shaft for fixing the sewage lever seal, and the sealing valve is connected to a lever of the sewage lever seal through a connecting rod; one end of the lever is provided with a balancing weight for pulling down the sealing valve, the other end of the lever is provided with a submerged tank, and the bottom of the submerged tank is provided with a water outlet;
in the preferred design, a float valve for adjusting the drainage speed of the submerged tank is arranged in the submerged tank; the float valve comprises the following specific structures: a cavity for placing a floating valve is arranged above the drain hole at the bottom of the corresponding submerged tank, and the floating valve is provided with a floating ball for closing the drain hole through a connecting rod penetrating through the cavity; in the running process, sewage discharged through the sewage outlet firstly enters the cavity, and under the driving of buoyancy, the floating valve floats upwards to drive the floating ball, and then the water outlet at the bottom of the submerged tank is further opened;
the layered water filtering part (namely, each layer of water filtering part) comprises a water purifying cavity formed by a reverse osmosis filter screen, a water outlet at the top of the water purifying cavity and a water purifying lever seal corresponding to the water outlet; meanwhile, a drain pipe is designed on the outer wall of the box body; in the preferred design, a one-way drain valve is arranged on the side wall of the layered water filtering part corresponding to the drain pipe (sewage after filtering is discharged into the drain pipe in one way and cannot flow back into the layered water purifying cavity);
in the specific structural design, the height of each layered water filtering part is not less than 50cm (but the overall height of the device is not more than 10 meters in consideration of the water delivery pressure of general electric pump water delivery), so that the backwashing effect is ensured, and the specific layer number can be designed to be 3;
the water purifying lever seal has the specific structure that: a lever fixing shaft is arranged on the top plate of the box body, one end of the lever is provided with a sealing valve for sealing the water outlet, and the other end of the lever is provided with a water tank with a built-in balancing weight;
the reverse osmosis filter screen is specifically a 100-300 mesh filter screen, and the filter screen is made of a material which has corrosion resistance and good strength, for example, a stainless steel material;
the back flushing control part comprises a water supply pipe which is arranged outside the box body, is vertically and parallelly designed and is communicated with the inside of the box body, a liquid level groove is arranged above the water supply pipe, and an upward floating seal in a U-shaped cavity formed by the liquid level groove, and meanwhile, a unidirectional drain outlet for unidirectional downward drainage is arranged at the bottom of the U-shaped cavity;
the floating seal comprises the following specific structures: the hollow fixed cylinder is fixed at the bottom of the U-shaped cavity, and a limiting rod penetrating through the water feeding pipe is arranged in the fixed cylinder; the top of the limiting rod is provided with a cross rod for limiting the floating device outside the fixed cylinder, and the bottom of the limiting rod is connected with a sealing ball for sealing the dirt discharging port; the floating device is sleeved outside the fixed cylinder; the sleeved floating device can float upwards along the fixed cylinder by means of the buoyancy of the water body in the U-shaped cavity, and then the sealing ball is driven by driving the limiting rod to float upwards, so that the sewage draining port is opened.
When the device is used, the sewage water inlet is matched with a power mechanical device (such as a water pump) to continuously introduce sewage into the device and ensure a certain water pressure so as to better ensure the sewage treatment effect.
The specific sewage treatment process by using the device comprises the following steps:
under the action of gravity, the sewage lever seal is in a sealing state for the water outlet when the sewage lever seal is not in use. In the sewage treatment process, sewage to be treated enters from a water inlet at the bottom of the box body, is filtered by the layered water filtering part, and the filtered sewage enters a drain pipe through a one-way water inlet valve respectively or sequentially enters the drain pipe through a water outlet and an overflow port, and is finally discharged through a water outlet.
In the application, in order to ensure the sewage filtering and purifying effect, the mesh number of the reverse osmosis filter screen is required to be 100-300 meshes, and although the mesh number can better ensure the filtering effect, the sewage filtering speed can be gradually slowed down along with the accumulation of impurities on the reverse osmosis filter screen, but the water flow can not be completely prevented from passing through the filter screen under the continuous sewage water inlet pressure, and a filtering effect similar to reverse osmosis is formed at the moment, so that the purifying effect can still be ensured.
However, as the accumulation of impurities in the anti-infiltration net increases, the filtered water flow through the anti-infiltration net gradually decreases, and the sewage entering the liquid level tank through the water supply pipe faces higher water pressure and finally overflows into the U-shaped cavity through the overflow port, the U-shaped cavity floats upwards in a sealing way to drive the sewage outlet to be opened, part of sewage is discharged into the submerged tank, and as the weight of the two ends of the sewage lever seal is adjusted, the water outlet is finally opened by means of lever force, so that untreated sewage in the tank is discharged rapidly (the caliber of the water outlet is larger, and water in the tank should be discharged rapidly within tens of seconds). In the drainage process, a large amount of filtered water is reserved in each layer of water purifying cavity, so that an automatic backwashing effect of flushing the corresponding reverse osmosis filter screen on each layer is realized, backwashing is ensured to be clean, and waste water generated by flushing is discharged through the water outlet.
After the self-flushing is finished, the weight of the two ends of the sewage lever seal is changed along with the water flow in the tank body of the submerged tank, so that the water discharge port is resealed, and a new round of sewage treatment and self-flushing circulation is restarted.
In general, the layered mechanical automatic back flushing sewage treatment device provided by the application has ingenious structural design, and besides the power pumping of the influent sewage, the whole back flushing process can realize mechanical automatic back flushing without more manpower intervention, so that the operation cost is lower; on the other hand, the layered structure design can be suitable for sewage treatment of different scales, and meanwhile, the device is convenient to prepare into a mobile sewage treatment device, so that the device is suitable for the requirements of different application scenes. The preliminary application effect also shows that the filter screen mesh number is higher, so that a better filtering effect can be realized, the subsequent sewage treatment cost is greatly reduced, and when the device is used for treating general domestic sewage, COD in the water body can be better reduced only after the device is used for treating the sewage, and the on-site treatment and on-site utilization of the sewage can be realized, so that the device has better practical value and better application prospect.
Drawings
FIG. 1 is a schematic diagram of a layered mechanical automatic backwash sewage treatment device provided by the application;
in the figure: 1. the water outlet, 2, overflow port, 3, first delivery port, 4, first water purification lever seal, 5, first reverse osmosis filter screen, 6, upper floating seal, 7, overflow port, 8, liquid level groove, 9, water supply pipe, 10, sealing ball, 11, dirt discharge port, 12, submerged tank, 13, float valve, 14, water discharge port, 15, second reverse osmosis filter screen, 16, second water purification lever seal, 17, one-way drain valve, 18, water inlet.
Detailed Description
The present application is further explained below with reference to examples so that those skilled in the art can more clearly understand the technical scheme of the present application.
Examples
The application provides a layered mechanical automatic backwash sewage treatment device, the outside of the device is integrally in a box structure, and the box comprises a plurality of layers of layered water filtering parts and backwash control parts according to different functions;
as shown in fig. 1, in this embodiment, three layered water filtering portions are taken as an example, and the technical scheme of the present application is described in detail as follows.
The bottom of the box body is provided with a water outlet 14, and a sealing valve for sealing the water outlet is matched at the water outlet in the box body; the sealing valve is opened or closed by a sewage lever seal (not labeled in the figure) arranged outside the box body; and meanwhile, the bottom of the tank body is provided with a sewage discharge port 11, and the sewage discharge port 11 corresponds to the top opening of the submerged tank 12 sealed by the sewage lever.
The sewage lever seal has the specific structure that: the outer part of the bottom plate of the box body is provided with a fixed shaft for fixing the sewage lever seal, and the sealing valve is connected to a lever of the sewage lever seal through a connecting rod; one end head of the lever is designed with a balancing weight for pulling down the sealing valve, the other end is designed with a submerged tank 12, and the bottom of the submerged tank 12 is designed with a water outlet;
in the concrete design, in order to adjust the drainage speed of the submerged tank (so as to adjust the drainage time for opening the water drain opening 14), a float valve 13 is arranged in the submerged tank; the specific structure of the float valve 13 is as follows: a cavity for placing a floating valve is arranged above the drain hole at the bottom of the corresponding submerged tank, and the floating valve is provided with a floating ball for closing the drain hole through a connecting rod penetrating through the cavity; in the running process, sewage discharged through the sewage outlet firstly enters the cavity, and under the driving of buoyancy, the floating valve floats upwards to drive the floating ball, and then the water outlet at the bottom of the submerged tank is further opened.
Each layer of water filtering part comprises a water purifying cavity formed by a reverse osmosis filter screen, a water outlet at the top of the water purifying cavity and a water purifying lever seal corresponding to the water outlet; meanwhile, a drain pipe is designed on the outer wall of the box body (drain pipe water flow is finally discharged through a drain outlet 1);
specifically, the uppermost layered water filtering part comprises a water outlet 3, a first water purifying lever seal 4 and a first reverse osmosis filter screen 5; the middle layer of layered water filtering part comprises a second water outlet (not labeled in the figure), a second water purifying lever seal 16 and a second anti-infiltration net 15;
the lowermost (third) layered drainage portion is similar to the above structure and will not be repeated.
It should be noted that, in order to ensure that the sewage after the filtration treatment of each layer of the water filtering portion is discharged in time, a one-way drain valve 17 may be disposed on the drain pipe corresponding to each layer of the water filtering portion (the sewage after the treatment can only be discharged through the drain pipe but cannot flow back through the drain pipe), so as to ensure that the sewage after the filtration treatment of each layer of the layered water filtering portion can be discharged in time (even if the sewage cannot be discharged in time, the sewage enters the previous layer of the water filtering portion from the water outlet in sequence upwards, and the final filtering effect is not affected).
The water purifying lever seal has the specific structure that: a lever fixing shaft is arranged on the top plate of the box body, a sealing valve for sealing the water outlet is arranged at one end of the lever, and a water tank with a built-in balancing weight is arranged at the other end of the lever.
The reverse osmosis filter screen is specifically a 100-300 mesh filter screen, and the filter screen is made of a material with corrosion resistance and good strength, so that obvious deformation and long service time in the back flushing process can be avoided, and a 200-mesh stainless steel filter screen is specifically adopted.
The back flushing control part comprises a water supply pipe 9 which is arranged outside the box body, is vertically and parallelly designed and is communicated with the inside of the box body, a liquid level groove 8 is arranged above the water supply pipe, and a U-shaped cavity formed by the liquid level groove (the U-shaped cavity can be independently formed by the liquid level groove or can be formed by the liquid level groove on one side and the side wall of the box body) is provided with an upward floating seal 6, and meanwhile, the bottom of the U-shaped cavity is provided with a unidirectional drain outlet (not shown in the figure) for unidirectional downward drainage;
the floating seal comprises the following specific structures: the hollow fixed cylinder is fixed at the bottom of the U-shaped cavity, and a limiting rod penetrating through the water feeding pipe is arranged in the fixed cylinder; the top of the limiting rod is provided with a cross rod for limiting the floating device outside the fixed cylinder, and the bottom of the limiting rod is connected with a sealing ball 10 for sealing the dirt discharging port 11; the floating device is sleeved outside the fixed cylinder; the sleeved floating device can float upwards along the fixed cylinder by means of the buoyancy of the water body in the U-shaped cavity, and then the sealing ball is driven by driving the limiting rod to float upwards, so that the sewage draining port is opened.
The specific sewage treatment and back flushing processes are explained in detail as follows:
when the device is used, the sewage water inlet is matched with a power mechanical device (such as a water pump) to continuously introduce sewage into the device, and a certain water pressure is ensured to ensure the sewage treatment effect. And in the unused state, the sewage lever seal seals the drain port 14.
When sewage treatment starts, sewage to be treated enters from a water inlet 18 at the bottom of the box body, enters into a drain pipe through a one-way drain valve through the reverse osmosis net of each layered water filtering part, or finally enters into the drain pipe through an overflow port 2 at the top, and finally is discharged through a drain port 1.
It should be explained that in the application process of the application, in order to ensure the sewage filtering and purifying effect, the mesh number of the reverse osmosis filter screen is required to be 100-300 meshes, and the mesh number can ensure the filtering effect well, but the sewage filtering speed gradually slows down along with the accumulation of impurities on the reverse osmosis filter screen, but the water flow can not be completely prevented from passing through the filter screen under the continuous sewage water inlet pressure, and a filtering effect similar to reverse osmosis is formed at the moment, so that the purifying effect can still be ensured.
With the increase of the impurity accumulation of the anti-infiltration net, the filtered water flow through the anti-infiltration net can be gradually reduced, the pressure of the sewage entering the sewage treatment part can not be changed, and due to the existence of the hydraulic pressure difference, the sewage enters the U-shaped cavity along the water feeding pipe 9 of the back flushing control part and the overflow port 7 of the liquid level groove 8, and further the sealing ball 10 is driven by the upward floating of the upward floating seal, so that the sewage discharge port is opened, after part of sewage is discharged into the submerged tank 12, the water discharge port 14 is finally opened by means of lever force along with the weight adjustment of the two ends of the sewage lever seal, so that untreated sewage in the tank body is discharged rapidly (the caliber of the water discharge port is larger, and the water in the tank body should be discharged rapidly within tens of seconds generally).
In the drainage process, due to the arrangement of the layered structure, each layer of water filtering part (for ensuring the backwashing effect, the height of each layer of water filtering part is generally not less than 50cm so as to ensure enough water quantity and water pressure) can retain more filtered purified water, at the moment, each layer of filter screen can be backwashed by means of the filtered purified water retained by each layer of water filtering part, so that the automatic backwashing effect is ensured, and the waste water generated by backwashing is finally discharged through the water outlet.
After the self-flushing is finished, the weight of the two ends of the sewage lever seal is changed along with the water flow in the tank body of the submerged tank, so that the water discharge port is resealed, and a new round of sewage treatment and self-flushing circulation is restarted.
The application also needs to be explained and interpreted, and the layered structure design provided by the application is mainly designed for a movable sewage treatment device, and can meet the requirements of different sewage treatment capacity through the multi-layer structure design. The preliminary treatment effect for domestic sewage shows that after the treatment by the device, the COD of part of domestic sewage can be reduced by more than 90 percent, and the device has better application effect.
Claims (5)
1. A layered mechanical automatic backwashing sewage treatment device is characterized in that the outside of the device is of a box structure, and comprises a plurality of layers of layered water filtering parts and a backwashing control part;
wherein, the bottom of the box body is provided with a water outlet, and a sealing valve for sealing the water outlet is matched with the water outlet in the box body; the sealing valve is opened or closed by a sewage lever seal arranged outside the box body; meanwhile, the bottom of the tank body is provided with a sewage draining port, and the sewage draining port corresponds to the top opening of the submerged tank sealed by the sewage lever;
the sewage lever seal has the specific structure that: the outer part of the bottom plate of the box body is provided with a fixed shaft for fixing the sewage lever seal, and the sealing valve is connected to a lever of the sewage lever seal through a connecting rod; one end of the lever is provided with a balancing weight for pulling down the sealing valve, the other end of the lever is provided with a submerged tank, and the bottom of the submerged tank is provided with a water outlet;
the layered water filtering part comprises a water purifying cavity formed by a reverse osmosis filter screen, a water outlet at the top of the water purifying cavity and a water purifying lever seal corresponding to the water outlet; meanwhile, a drain pipe is designed on the outer wall of the box body;
the reverse osmosis screen adopts a 100-300 mesh filter screen; the reverse osmosis filter screen is made of stainless steel;
the water purifying lever seal has the specific structure that: a lever fixing shaft is arranged on the top plate of the box body, one end of the lever is provided with a sealing valve for sealing the water outlet, and the other end of the lever is provided with a water tank with a built-in balancing weight;
the back flushing control part comprises a water supply pipe which is arranged outside the box body, is vertically and parallelly designed and is communicated with the inside of the box body, a liquid level groove is arranged above the water supply pipe, and an upward floating seal in a U-shaped cavity formed by the liquid level groove, and meanwhile, a unidirectional drain outlet for unidirectional downward drainage is arranged at the bottom of the U-shaped cavity;
the floating seal comprises the following specific structures: the hollow fixed cylinder is fixed at the bottom of the U-shaped cavity, and a limiting rod penetrating through the water feeding pipe is arranged in the fixed cylinder; the top of the limiting rod is provided with a cross rod for limiting the floating device outside the fixed cylinder, and the bottom of the limiting rod is connected with a sealing ball for sealing the dirt discharging port; the floating device is sleeved outside the fixed cylinder.
2. The layered mechanical automation back flush sewage treatment device according to claim 1, wherein a float valve for adjusting the drainage speed of the submerged tank is arranged in the submerged tank; the float valve comprises the following specific structures: a cavity for placing a floating valve is arranged above the drain hole at the bottom of the corresponding submerged tank, and the floating valve is provided with a floating ball for closing the drain hole through a connecting rod penetrating through the cavity.
3. The layered mechanical automation backwash sewage treatment device of claim 1 wherein the height of each layered water filtering portion is not less than 50cm.
4. The layered mechanical automation backwash wastewater treatment device of claim 1, wherein the layered water filtration section comprises 3 layers.
5. The layered mechanical automation backwash sewage treatment device of claim 1, wherein the layered water filtering portion is provided with a one-way drain valve corresponding to the side wall of the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023324.XA CN109464846B (en) | 2019-01-10 | 2019-01-10 | Layered mechanical automatic backwashing sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023324.XA CN109464846B (en) | 2019-01-10 | 2019-01-10 | Layered mechanical automatic backwashing sewage treatment device |
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| CN109464846A CN109464846A (en) | 2019-03-15 |
| CN109464846B true CN109464846B (en) | 2023-09-08 |
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| CN201910023324.XA Active CN109464846B (en) | 2019-01-10 | 2019-01-10 | Layered mechanical automatic backwashing sewage treatment device |
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| CN109876538A (en) * | 2019-04-01 | 2019-06-14 | 郑州碧兴环保科技有限公司 | A kind of mechanical automation backwashing sewage water processing unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005270931A (en) * | 2004-03-26 | 2005-10-06 | Ngk Insulators Ltd | Filter tank |
| CN205516871U (en) * | 2016-01-20 | 2016-08-31 | 李立坤 | Rainwater self -cleaning filter |
| CN205875342U (en) * | 2016-04-29 | 2017-01-11 | 四川牧雨环保科技有限公司 | Urban rainwater filters storage leakage system |
| CN109110839A (en) * | 2018-06-28 | 2019-01-01 | 宿迁菡束环保设备有限公司 | A kind of the water purifier water tank and water purifier of automatic cycle control |
-
2019
- 2019-01-10 CN CN201910023324.XA patent/CN109464846B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005270931A (en) * | 2004-03-26 | 2005-10-06 | Ngk Insulators Ltd | Filter tank |
| CN205516871U (en) * | 2016-01-20 | 2016-08-31 | 李立坤 | Rainwater self -cleaning filter |
| CN205875342U (en) * | 2016-04-29 | 2017-01-11 | 四川牧雨环保科技有限公司 | Urban rainwater filters storage leakage system |
| CN109110839A (en) * | 2018-06-28 | 2019-01-01 | 宿迁菡束环保设备有限公司 | A kind of the water purifier water tank and water purifier of automatic cycle control |
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| CN109464846A (en) | 2019-03-15 |
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