CN206008131U - Integral light filtrate water treatment filter pond - Google Patents
Integral light filtrate water treatment filter pond Download PDFInfo
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- CN206008131U CN206008131U CN201620794512.4U CN201620794512U CN206008131U CN 206008131 U CN206008131 U CN 206008131U CN 201620794512 U CN201620794512 U CN 201620794512U CN 206008131 U CN206008131 U CN 206008131U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 359
- 239000000706 filtrate Substances 0.000 title abstract 2
- 238000001914 filtration Methods 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 82
- 239000002245 particle Substances 0.000 claims abstract description 64
- 239000010865 sewage Substances 0.000 claims abstract description 27
- 238000011001 backwashing Methods 0.000 claims description 53
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000006004 Quartz sand Substances 0.000 description 11
- 239000008187 granular material Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 230000035515 penetration Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000010842 industrial wastewater Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000008235 industrial water Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polypropylene ethylene Polymers 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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Abstract
Integral light filtrate water treatment filter pond；It is characterized in that：Including at least one unit for treating water, the unit for treating water includes a pond body, and the pond body is from top to bottom made up of the clear water zone of intercommunication current, filtering area and inhalant region；Wherein, between the clear water zone and the filtering area, between the filtering area and the inhalant region, separated by a filter plate, the filter plate is provided with several water stream channels for water flowing；The inhalant region has a water inlet, and the water inlet is for accessing sewage to be filtered；Lightweight flexible filtering material particle of several density less than water is equipped with the filtering area, and the particle diameter of the lightweight flexible filtering material particle is more than the width of water stream channel；After water flowing, each lightweight flexible filtering material particle forms a filter layer, and there is a gap between lower floor filter plate；Spillwag chute of the top of clear water zone for clear water.The utility model has the advantages that good filtration effect, backwash requirement are low and reliability is high, and low cost, operating cost are low, occupation of land is little, convenient operation and management.
Description
Technical Field
The utility model relates to an environmental water treatment field, concretely relates to use integrated water treatment filtering pond of light filter material, this filtering pond is used for handling the sewage after the materialization is handled.
Background
The filter is an essential important link in the field of water quality purification (such as water works), and a quartz sand filter material water treatment filter is generally adopted. Can also be used for the treatment of industrial water, industrial wastewater and domestic sewage.
The structure and the working principle of the existing quartz sand filter are as follows:
the filter chamber uses a quartz sand filter material as a filter medium, the grain diameter of the filter material is usually 0.5-1.2 mm, the specific gravity is 2.5, the thickness of the filter layer is-700 mm, and the lower part of the quartz sand filter material is provided with a supporting layer consisting of coarse sand with the grain diameter from top to bottom from small to large so as to prevent the quartz sand filter material from losing.
During filtering, coagulant is added into the water mixed in the rivers and the lakes, the mixture is precipitated after reacting for a period of time, and water is discharged after the precipitation for a period of time. The mixed water is filtered by the filtering tank from top to bottom, the quality of the discharged water is clear and transparent, and finally the sterilizing agent is used for sterilizing so as to supply water after the quality of the mixed water reaches the water quality standard of domestic water.
The problems of the existing quartz sand filter are as follows:
first, problem in the structural level:
1. the quartz sand filter particles are rigid filter materials, and after backwashing, the filter materials with small particle sizes are distributed on the upper part of the filter layer, and the filter materials with large particle sizes are distributed on the lower part of the filter layer. The upper part of the filter material layer can form a filter membrane by intercepting fine suspended matters and colloidal matters, so that the filtering effect can be improved, but when the intercepted matters are too much, the filtering resistance is increased, the water outlet flow is reduced, the backwashing is needed, and if the backwashing is not in time, the local penetration of the filter layer can be caused, so that the water quality of the outlet water is influenced.
However, the initial filter water after back washing is not formed due to the filter membrane, and the water quality is not good generally, and the reflux treatment is carried out;
2. the strength requirement of backwashing is high (-45 m)3/m2H) and long backwashing time (6-8 min/time), so that the consumption of backwashing water is large, and the power requirement on a backwashing water pump is high;
3. the backwashing water is from a clean water tank, the clean water in the clean water tank is pumped into the bottom of the filter tank by a backwashing pump and is backwashed from bottom to top, a large amount of backwashing drainage needs to be discharged within a few minutes instantly, and the backwashing drainage can not flow back and is not allowed to be directly discharged into rivers, so that the backwashing water is allowed to be discharged into nearby rivers after pollutants are intercepted by a device, and a large amount of investment cost is needed.
Secondly, the problem of the use layer is as follows:
1. the quartz sand filter is less used in sewage treatment plants with smaller scale;
2. the control index of the emission standard water quality is low and generally considered unnecessary;
3. the quartz sand filter tank has large investment, high operation cost and troublesome operation management;
4. the environmental emission requirement is gradually increased, and the rapid development of the industry causes partial industrial wastewater to be discharged into a domestic sewage treatment plant, and the original treatment process is difficult to bear different impact loads, so that the over-standard discharge conditions of COD (chemical oxygen demand), TN (total nitrogen) and TP (total phosphorus) occur occasionally. The pressure of upgrading, re-upgrading and exceeding standards is provided, new equipment and a new process must be timely researched and developed for coping with the pressure, and the pressure is imperative.
Therefore, how to solve the above-mentioned deficiencies of the prior art is the subject to be studied and solved by the present invention.
Disclosure of Invention
An object of the utility model is to provide an integration light filter material water treatment filtering pond to solve the not enough of prior art existence.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an integrated light filter material water treatment filter tank; the device comprises at least one water treatment unit, wherein the water treatment unit comprises a tank body which is composed of a clear water area, a filtering area and a water inlet area which are communicated with each other by water flow from top to bottom; wherein,
the clean water area and the filtering area, and the filtering area and the water inlet area are separated by a filter plate, and a plurality of water flow channels for water to pass through are arranged on the filter plate;
the water inlet area is provided with a water inlet for accessing sewage to be filtered;
the filter area is internally provided with a plurality of light elastic filter material particles with density less than that of water, and the particle size of the light elastic filter material particles is larger than the width of a water flow channel on the filter plate; after water is introduced, the light elastic filter material particles are densely distributed below the upper filter plate by the buoyancy of the water to form a filter layer, and a gap is formed between the filter layer and the lower filter plate;
the top of the clear water area is an overflow surface of clear water.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, because the filter material particles adopt the light filter material, when the filter works, all the filter material particles can be concentrated and densely distributed below the upper filter plate through the buoyancy of water to form a stable and reliable filter layer with thickness, the filter layer can uniformly and balancedly filter sewage, the water flow in the filter tank is conveniently and uniformly distributed, and the filter effect is improved.
In addition, because the filter material particles adopt light filter materials, the requirement on the strength of backwashing is low. The filter tank can be integrated into a small-sized structure, the integrated advantage is that the filter tank can be transported integrally by a vehicle, and the filter tank is convenient to popularize and use.
2. In the scheme, the filter material particles have certain extrusion deformation capacity due to elasticity, and after water flows through the filtering area, the filtering layer consisting of the filter material particles becomes very compact to form a fixed filtering layer attached to the lower part of the upper filtering plate and cannot shake randomly along with water flow; the filtering effect can be improved during filtering, and local penetration of the filtering layer can not occur because the light elastic filtering material particles have toughness.
In addition, the elastic characteristics of the light elastic filter material particles show that the surfaces of the light elastic filter material particles have a plurality of micropore structures, so that the actual adsorption surface area is large, and the adsorption effect on the sewage is favorably improved; in addition, the filter material has the advantages of high strength, difficult breakage, small water flow resistance, high filtering speed and the like, and the price of the filter material is lower than that of quartz sand in volume, so that the cost can be reduced. The light elastic filter material particles are preferably polypropylene ethylene foam particles, and can also be light elastic particles made of other plastic materials.
3. In the scheme, when water is supplied, the gap between the filter layer and the lower filter plate is used for backwashing and expanding the light elastic filter material particles during backwashing.
4. In the above scheme, the overflow surface of the clean water area is used for overflowing the filtered clean water. The height between the overflow surface and the upper filter plate determines the flushing force during backwashing, and the higher the height is, the larger the quality of clear water is, and the stronger the backwashing force is. The flushing force during backwashing can also be adjusted by an electric control valve, and the electric control valve is used for adjusting the water outlet flow of the water inlet (namely the water outlet during backwashing) so as to realize the purpose of adjusting the flushing force.
5. In the above scheme, the setting of filter plate not only will light elasticity filter material granule keep apart in within the filtering area, its setting through several rivers channels can also make the rivers of the water inflow of filtering area, play water can both evenly distributed to promote the filter effect, and also can equipartition play water when the back flush and wash the filter layer, promote the washing effect.
6. In the scheme, the filter plate consists of a plate body and a plurality of water filtering heads (commonly called water caps) uniformly distributed on the plate body; the water filter head comprises a filter cap and a water inlet which are communicated, the filter cap is arranged on one side of the filter area on the filter plate, and the water inlet is arranged on one side of the water inlet area or the clean water area on the filter plate; the water filter head is provided with a plurality of water flow channels. The water filter head can be a laminated water cap or an umbrella-shaped water cap.
Besides the mode of installing the water filter head, the filter plate can also be provided with a plurality of water through holes which are directly and uniformly distributed on the plate body to be used as water flow channels, so that the filter plate becomes a filter screen.
7. In the above scheme, the water flow channel of the water filter is in a slit shape, the width of the slit can be determined according to the particle size of the light elastic filter material particles (such as the slit width of 1mm, 0.5mm or 0.2 mm), and if the width of the slit is large, the resistance to water is small, otherwise, the resistance is large.
The grain size of the filter material particles is selected according to the water quality condition, the grain size of the common filter material particles is 1mm, 2mm or 3mm, but the grain size of the smallest light elastic filter material particles in the filter chamber must be larger than the width of a water flow channel on the filter head, otherwise the filter material particles can be lost through the water flow channel.
8. In the above scheme, be equipped with the inlet tube in the district of intaking, this inlet tube intercommunication the water inlet has seted up the several hole of permeating water on the body of inlet tube, the even play water of being convenient for. The inlet tube violently crouch in the district of intaking, the oblique below of each hole of permeating water on the inlet tube orientation inlet tube both sides is seted up to when intaking, rivers go out to permeate water the rivers of disturbing the district bottom of intaking of cell body behind the hole, prevent that the filth from deposiing.
9. In the scheme, the number of the water inlet pipes is two, and the two water inlet pipes are arranged in parallel from top to bottom; wherein one end of the first water inlet pipe is the water inlet, the other end is connected with the middle part of the second water inlet pipe, and the water permeable hole is arranged on the second water inlet pipe. Borrow this design, through first inlet tube with the leading-in middle part to the second inlet tube of sewage, sewage flows towards the both ends of second inlet tube to evenly flow out each at body both ends the hole of permeating water can make the rivers even flow in district of intaking, and is favourable to the even part of the whole rivers in filtering pond, thereby promotes even filter effect.
10. In the above scheme, the top of the clean water area is provided with a water outlet channel, the position of the water outlet channel is lower than the position of the overflow surface, and the position of the overflow surface is lower than the top edge of the tank body; and the water outlet channel is arranged in a downward inclined way, and the tail end of the water outlet channel is connected with a water outlet pipe as a water outlet end. When the clean water overflows upwards through the overflow surface, the clean water enters the water outlet channel, is collected through the water outlet channel, and is guided into the water outlet pipe through the inclined design of the water outlet channel to flow out.
11. In the above scheme, the overflow surface is provided with the tooth-shaped edge corresponding to the water outlet channel, so that the overflowing water flow can uniformly overflow and flow softly, the water flow in the filter tank can flow uniformly and distributively, and the filtering effect is improved.
12. In the above-mentioned scheme, during the filtration, the flow direction of rivers is from the bottom up, and sewage flows into the inlet tube via the water inlet of intaking the district, and the hole of permeating water through on the inlet tube flows into the district, gets into the filtering area through lower floor's filter plate again in to filter via the filter layer of constituteing by light elasticity filter material granule, during water after the filtration passes through upper filter plate and gets into the clear water district, and in the top overflow of clear water district.
During back washing, the flow direction of the water flow is from top to bottom, namely, the filtering layer consisting of light elastic filtering material particles in the filtering area is washed downwards by clean water in the clean water area. When the filter is washed, the filter layer is dispersed and expanded downwards, dirt accumulated on the filter layer is washed and separated, washing water carrying the dirt flows into the water inlet area through the water flow channel on the lower filter plate and flows out of the filter tank through the water inlet pipe and the water inlet, and the water inlet pipe and the water inlet play the role of backwashing the water outlet channel.
13. In the above scheme, the device further comprises a control circuit, wherein the control circuit is electrically connected with a flowmeter and an electric control valve; the flow meter is used for detecting the flow of clean water flowing out of the clean water area, and the electric control valve is arranged corresponding to the water inlet of the water inlet area and used for starting backwashing.
Specifically, the flow meter may be arranged corresponding to the water outlet pipe; the electric control valve can control to stop injecting sewage into the water inlet and open the water inlet, and water flow can automatically flow downwards through self weight to perform backwashing because the water inlet is arranged below the filter tank.
During filtering, as the filtering layer in the filtering area continuously filters sewage accumulated dirt and continuously receives upward pressure of sewage below, after long-time work, the water passing capacity of the filtering layer is reduced, and further the outflow quantity of clean water in the clean water area is reduced; when the flow meter detects that the outflow of the clean water is lower than a preset value, the flow meter can understand that the outflow of the clean water is reduced, the control circuit controls to start the back washing, and when the clean water in the clean water area is reduced to a certain position after the back washing for a period of time, a signal can be fed back to the control circuit through a liquid level sensor to stop the back washing.
14. In the scheme, the filtering area and the side part of the water inlet area are both provided with an access hole so that personnel can conveniently enter and exit during shutdown maintenance.
15. In the above scheme, the water treatment units are provided with a plurality of water treatment units, and each water treatment unit is arranged in parallel along the horizontal direction, so that when one or more water treatment units need to stop working for maintenance and other operations, other water treatment units can also continue working, and further the sustainability of the working of the filter tank is ensured.
The utility model discloses a theory of operation and advantage as follows:
the integrated light filter material water treatment filter tank of the utility model has a tank body which is composed of a clear water area, a filtering area and a water inlet area which are communicated with each other, and are respectively separated by a filter plate, and a plurality of water flow channels are arranged on the filter plate; the sewage enters the water inlet area, becomes clean water after being filtered by the filtering area and overflows from the top of the clean water area. Wherein the filtering area is provided with a plurality of light elastic filtering material particles with density less than that of water, and the particle size of the light elastic filtering material particles is larger than the width of the water flow channel; after water is supplied, the light elastic filter material particles are densely distributed below the upper filter plate to form a filter layer through the buoyancy of the water, and a gap is formed between the light elastic filter material particles and the lower filter plate. The utility model discloses an operation from bottom to top, top-down back flush. Compared with the prior art, the utility model, its advantage is as follows:
1. fine suspended matters, organic pollutants and microorganisms are effectively intercepted in the filtering process, the filter membrane is formed quickly, and the filter membrane has the function of further removing COD, SS and TP;
2. the filtering speed is high (more than or equal to 10M/h), the integrated combination is realized, the occupied area is small, and the investment cost is low;
3. integrates the backwashing function and has small backwashing strength (12-18M)3/M2H), small backwashing flow, short backwashing time (3-5 min/time), low energy consumption;
4. the filter material has elasticity, and the problem that the water quality of effluent is influenced by penetration of the filter layer can not occur;
5. the integrated filter tank is added after the physicochemical treatment, so that the dosage of the added phosphorus removing agent and the coagulant can be obviously reduced, the sludge amount is also reduced, and the operating cost is saved;
6. the operation and management are simple and convenient, and automatic operation in backwashing can be realized by installing some automatic control facilities.
The utility model discloses not only be applicable to domestic sewage treatment, industrial wastewater treatment and industrial water purification, still can be applicable to different scales, different treatment process's terminal upgrading, improve the guarantee of discharge to reach standard.
To sum up, the utility model has the advantages of the filter effect is good, the backwash requires to be low and the reliability is high, and the cost is low, the running cost is low, take up an area of for a short time, operation management is convenient.
Drawings
Fig. 1 is a schematic structural diagram of a top view angle of an embodiment of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 3 is a schematic view of a cross-sectional view B-B of FIG. 1;
FIG. 4 is a schematic view of the cross-sectional structure C-C of FIG. 2;
fig. 5 is a schematic structural view of a water filter according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a second inlet pipe according to an embodiment of the present invention.
In the above drawings: 1. a tank body; 2. a clear water zone; 3. a filtration zone; 4. a water inlet area; 5. filtering the plate; 6. a water filter head; 7. a water flow channel; 8. a water inlet; 9. a water inlet pipe; 10. water permeable holes; 11. a filter layer; 12. a gap; 13. an overflow surface; 14. a water outlet channel; 15. a water outlet pipe; 16. a toothed edge; 17. an access hole; 61. a filter cap; 62. a water inlet; 9A, a first water inlet pipe; 9B, a second water inlet pipe.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): referring to the attached drawings 1-6, the integrated light filter material water treatment filter tank comprises two water treatment units arranged in parallel, each water treatment unit comprises a tank body 1, and the tank body 1 is composed of a clear water area 2, a filtering area 3 and a water inlet area 4 which are communicated with each other through water flow from top to bottom.
Wherein, the clean water area 2 and the filtering area 3, and the filtering area 3 and the water inlet area 4 are separated by a filter plate 5, and the filter plate 5 is composed of a plate body and a plurality of water filters 6 (commonly called water caps) uniformly distributed on the plate body; the water filter head 6 comprises a filter cap 61 and a water inlet 62 which are communicated, the filter cap 61 is arranged on the filter plate 5 and positioned at one side of the filter area 3, and the water inlet 62 is arranged on the filter plate 5 and positioned at one side of the water inlet area 4 or the clean water area 2; the water filter head 6 is provided with a plurality of water flow channels 7, and the water flow channels 7 are in a slit shape.
Wherein, the water inlet area 4 is provided with a water inlet 8, and the water inlet 8 is used for accessing sewage to be filtered;
be equipped with inlet tube 9 in the district of intaking 4, this inlet tube 9 intercommunication water inlet 8, and seted up the several hole 10 of permeating water on the body of inlet tube 9, be convenient for evenly go out water. The inlet tube 9 crouch in the district 4 of intaking, the oblique below of the hole 10 orientation inlet tube 9 both sides of permeating water respectively on the inlet tube 9 is seted up to when intaking, rivers go out and disturb the rivers of the 4 bottoms in the district of intaking of cell body 1 behind the hole 10 of permeating water, prevent that the filth from deposiing.
Moreover, two water inlet pipes 9 are arranged, and the two water inlet pipes 9 are arranged in parallel one above the other; wherein one end of the first water inlet pipe 9A is the water inlet 8, the other end is connected with the middle part of the second water inlet pipe 9B, and the water permeable hole 10 is arranged on the second water inlet pipe 9B. Borrow this design, through first inlet tube 9A with the leading-in middle part to second inlet tube 9B of sewage, sewage flows towards the both ends of second inlet tube 9B to evenly flow out each of body both ends the hole 10 of permeating water, can make the rivers uniform flow of intake zone 4, it is favourable to the even part of the whole rivers of filtering pond, thereby promote even filter effect.
Wherein, a plurality of light elastic filter material particles (not shown in the figure) with density less than that of water are arranged in the filtering area 3, and the particle size of the light elastic filter material particles is larger than the width of the water flow channel 7 on the filter plate 5; after water is supplied, the light elastic filter material particles are densely distributed below the upper filter plate 5 through the buoyancy of the water to form a filter layer 11, a gap 12 is formed between the filter layer and the lower filter plate 5, and the gap 12 is used for backwashing and expanding the light elastic filter material particles during backwashing.
Wherein, the top of the clear water area 2 is an overflow surface 13 of clear water, and the overflow surface 13 is used for overflowing the filtered clear water. The height between the overflow surface 13 and the upper filter plate 5 determines the flushing force during backwashing, and the higher the height is, the larger the quality of clear water is, and the stronger the backwashing force is. The top of the clear water area 2 is provided with a water outlet channel 14, the position of the water outlet channel 14 is lower than the position of the overflow surface 13, and the position of the overflow surface 13 is lower than the top edge of the tank body 1; and the water outlet channel 14 is arranged in a downward inclination way, and the tail end of the water outlet channel is connected with a water outlet pipe 15 as a water outlet end. When the clean water overflows from the overflow surface 13, the clean water enters the water outlet channel 14, and after being collected by the water outlet channel 14, the clean water is guided into the water outlet pipe 15 by the inclined design of the clean water and flows out.
The overflow surface 13 is provided with a toothed edge 16 corresponding to the water outlet channel 14, so that the overflowing water flow can overflow uniformly and flow softly, and further the water flow in the tank body 1 can flow uniformly and distributively, and the filtering effect is improved.
Because the filter material granule adopts the light filter material, consequently at the filter work, the buoyancy of whole filter material granule accessible water is concentrated and is densely covered in the below of upper filter plate 5, forms a reliable and stable filter layer 11 that has thickness, and this filter layer 11 can filter sewage evenly, balancedly, is convenient for rivers ground evenly distributed in the cell body 1, promotes the filter effect.
In addition, because the filter material particles adopt light filter materials, the requirement on the strength of backwashing is low. Namely, the filter material can be backwashed by using the self weight of the clean water accumulated in the clean water area 2 as the power of the backwashing, so that the equipment investment and the use cost are reduced, the filter tank can be designed into an integrated small-sized structure, the integrated advantage is that the floor area of the filter tank during use is reduced, the integral transportation of the filter tank can be realized through a vehicle, and the popularization and the use of the product are facilitated.
The filter material particles have certain extrusion deformation capacity due to elasticity, and after the filtering area 3 is filled with water, the filtering layer 11 consisting of the filter material particles can become very compact, so that the filtering effect can be improved during filtering, and the local penetration of the filtering layer 11 can be avoided during backwashing due to the toughness of the light elastic filter material particles, so that the backwashing effect is improved.
In addition, the elastic characteristics of the light elastic filter material particles show that the surfaces of the light elastic filter material particles have a plurality of micropore structures, so that the actual adsorption surface area is large, and the adsorption effect on the sewage is favorably improved; in addition, the filter material has the advantages of high strength, difficult breakage, small water flow resistance, high filtering speed and the like, and the price of the filter material is lower than that of quartz sand in volume, so that the cost can be reduced. The light elastic filter material particles are preferably polypropylene ethylene foam particles, and can also be light elastic particles made of other plastic materials.
Wherein, the setting of filter plate 5 not only will light elasticity filter material granule keep apart in within the filtering area 3, its setting through several rivers passageways 7 can also make the rivers of the water inflow of filtering area 3, play water can both evenly distributed to promote the filter effect, and also can equipartition play water when the back flush and wash the filter layer, promote the washing effect.
The width of the water flow channel 7 can be determined according to the particle size of the light elastic filter material particles, and if the width of the gap is large, the resistance to water is small, otherwise, the resistance is large. The selection of the particle size of the filter material particles is determined according to the water quality, the particle size of the commonly used filter material particles is 1mm, 2mm or 3mm, however, the particle size of the smallest light elastic filter material particles in the filter chamber must be larger than the width of the water flow channel 7 on the water filter head 6, otherwise, the filter material particles can run off through the water flow channel.
Wherein, the water treatment unit still can be equipped with more than 2, each water treatment unit is along horizontal direction parallel arrangement to when operation such as maintenance need be carried out to certain one or several water treatment unit among them stopping work, other water treatment unit can also continue to work, and then guarantee the sustainability of filtering pond work.
Wherein, it also includes a control circuit (not shown), the control circuit is electrically connected with a flowmeter and an electric control valve; the flow meter is used for detecting the flow of clean water flowing out of the clean water area 2, and the electric control valve is arranged corresponding to the water inlet 8 of the water inlet area 4 and used for starting backwashing and controlling the flushing force.
Specifically, the flow meter may be arranged corresponding to the water outlet pipe 15; the electric control valve can control to stop injecting sewage into the water inlet 8 and open the water inlet 8, and water flow can automatically flow downwards through self weight to perform backwashing because the water inlet 8 is arranged below the filter tank.
During filtering, as the filtering layer 11 in the filtering area 3 continuously filters sewage to accumulate dirt and continuously receives upward pressure of sewage below, after long-time working, the water passing capacity of the filtering layer 11 is reduced, and further the outflow quantity of clean water in the clean water area 2 is reduced; when the flow meter detects that the outflow of the clean water is lower than a preset value, the flow meter can understand that the flow of the clean water in the filter layer 11 is reduced, the control circuit controls to start the back washing, and when the clean water in the clean water area 2 is reduced to a certain position after the back washing for a period of time, a signal can be fed back to the control circuit through a liquid level sensor to stop the back washing.
Wherein, the lateral parts of the filtering area 3 and the water inlet area 4 are provided with an access hole 17 so as to be convenient for personnel to enter and exit during shutdown maintenance.
The working principle of the utility model is as follows: the utility model has two functions of filtering and back flushing;
during the filtration, the flow direction of rivers is from the bottom up, and sewage flows into inlet tube 9 (9A, 9B) via the water inlet 8 of intake zone 4, flows into intake zone 4 through the hole 10 of permeating water on inlet tube 9, and in lower floor's filter plate 5 gets into filtering area 3 again to filter through the filter layer 11 that comprises light elasticity filter material granule, the water after the filtration passes through upper filter plate 5 and gets into in clear water district 2, and in the top overflow of clear water district 2.
When filtering, the utility model discloses five distributions have to rivers to reach the equipartition distribution of rivers, promote the filter effect, the structure that this five distributions correspond is respectively:
1. the connection form of the first and the second water inlet pipes 9 and the water permeable holes 10 are uniformly distributed on the second water inlet pipe 9;
2. a plurality of water filters 6 are uniformly distributed on the lower filter plate 5;
3. a filter layer 11 composed of light elastic filter material particles;
4. a plurality of water filters 6 are uniformly distributed on the upper filtering plate 5;
5. an overflow surface 13 with a toothed edge 16.
During back washing, the flow direction of the water flow is from top to bottom, i.e. the filter layer 11 composed of light elastic filter material particles in the filter area 3 is washed downwards by the clean water in the clean water area 2. During washing, the filter layer 11 is dispersed and expanded downwards, dirt accumulated on the filter layer 11 is washed and separated, washing water carrying the dirt flows into the water inlet area 4 through the water flow channel 7 on the lower filter plate 5 and flows out of the filter tank through the water inlet pipe 9 and the water inlet 8, and the water inlet pipe 9 and the water inlet 8 play a role of a back washing water outlet channel.
The utility model has the advantages as follows:
1. fine suspended matters, organic pollutants and microorganisms are effectively intercepted in the filtering process, the filter membrane is formed quickly, and the filter membrane has the function of further removing COD, SS and TP;
2. the filtering speed is high (more than or equal to 10M/h), the integrated combination is realized, the occupied area is small, and the investment cost is low;
3. integrates the backwashing function and has small backwashing strength (12-18M)3/M2H), small backwashing flow, short backwashing time (3-5 min/time), low energy consumption;
4. the filter material has elasticity, and the problem that the water quality of effluent is influenced by penetration of the filter layer can not occur;
5. the integrated filter tank is added after the physicochemical treatment, so that the dosage of the added phosphorus removing agent and the coagulant can be obviously reduced, the sludge amount is also reduced, and the operating cost is saved;
6. the operation and management are simple and convenient, and automatic operation in backwashing can be realized by installing some automatic control facilities.
The utility model discloses not only be applicable to domestic sewage treatment, industrial wastewater treatment and industrial water purification, still can be applicable to different scales, different treatment process's terminal upgrading, improve the guarantee of discharge to reach standard.
To sum up, the utility model has the advantages of the filter effect is good, the backwash requires to be low and the reliability is high, and the cost is low, the running cost is low, take up an area of for a short time, operation management is convenient.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. An integrated light filter material water treatment filter tank; the method is characterized in that: the device comprises at least one water treatment unit, wherein the water treatment unit comprises a tank body which is composed of a clear water area, a filtering area and a water inlet area which are communicated with each other by water flow from top to bottom; wherein,
the clean water area and the filtering area, and the filtering area and the water inlet area are separated by a filter plate, and a plurality of water flow channels for water to pass through are arranged on the filter plate;
the water inlet area is provided with a water inlet for accessing sewage to be filtered;
the filter area is internally provided with a plurality of light elastic filter material particles with density less than that of water, and the particle size of the light elastic filter material particles is larger than the width of a water flow channel on the filter plate; after water is introduced, the light elastic filter material particles are densely distributed below the upper filter plate by the buoyancy of the water to form a filter layer, and a gap is formed between the filter layer and the lower filter plate;
the top of the clear water area is an overflow surface of clear water.
2. A filter according to claim 1, wherein: the water treatment units are arranged in parallel along the horizontal direction.
3. A filter according to claim 1, wherein: the filter plate consists of a plate body and a plurality of water filters uniformly distributed on the plate body; the water filter head comprises a filter cap and a water inlet which are communicated, the filter cap is arranged on one side of the filter area on the filter plate, and the water inlet is arranged on one side of the water inlet area or the clean water area on the filter plate; the water filter head is provided with a plurality of water flow channels.
4. A filter according to claim 1, wherein: the water inlet area is internally provided with a water inlet pipe which is communicated with the water inlet, and the body of the water inlet pipe is provided with a plurality of water permeable holes.
5. A filter according to claim 4, wherein: the water inlet pipe is horizontally arranged in the water inlet area, and the water permeable holes on the water inlet pipe are formed towards the oblique lower parts of the two sides of the water inlet pipe.
6. A filter according to claim 5, wherein: the two water inlet pipes are arranged in parallel one above the other; wherein one end of the first water inlet pipe is the water inlet, the other end is connected with the middle part of the second water inlet pipe, and the water permeable hole is arranged on the second water inlet pipe.
7. A filter according to claim 1, wherein: the top of the clear water area is provided with a water outlet channel, the arrangement position of the water outlet channel is lower than that of the overflow surface, and the arrangement position of the overflow surface is lower than the top edge of the pool body; and the water outlet channel is arranged in a downward inclined way, and the tail end of the water outlet channel is connected with a water outlet pipe as a water outlet end.
8. A filter according to claim 7, wherein: the overflow surface is provided with a tooth-shaped edge corresponding to the water outlet channel.
9. A filter according to claim 1, wherein: the lateral part of filtering area reaches the district of intaking all is equipped with an access hole.
10. A filter according to claim 1, wherein: the control circuit is electrically connected with a flowmeter and an electric control valve; the flow meter is used for detecting the flow of clean water flowing out of the clean water area, and the electric control valve is arranged corresponding to the water inlet of the water inlet area and used for starting backwashing and controlling the flushing force.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794512.4U CN206008131U (en) | 2016-07-27 | 2016-07-27 | Integral light filtrate water treatment filter pond |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620794512.4U CN206008131U (en) | 2016-07-27 | 2016-07-27 | Integral light filtrate water treatment filter pond |
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| CN206008131U true CN206008131U (en) | 2017-03-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466532A (en) * | 2016-07-27 | 2017-03-01 | 谢绍舜 | Integral light filtrate water treatment filter pond |
| CN108545793A (en) * | 2018-05-07 | 2018-09-18 | 清华大学深圳研究生院 | A kind of filtrate for handling the suspension rapid filter of closure option |
| CN109354335A (en) * | 2018-12-14 | 2019-02-19 | 谢绍舜 | The optimum organization technique of town domestic sewage processing |
| CN111135724A (en) * | 2020-01-14 | 2020-05-12 | 安徽奇书生物科技有限公司 | Flow control separation ultrafiltration device |
| EP4159693A4 (en) * | 2020-06-02 | 2023-08-23 | BKT Co., Ltd. | Wastewater filtering method and apparatus comprising filter media of different sizes |
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2016
- 2016-07-27 CN CN201620794512.4U patent/CN206008131U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466532A (en) * | 2016-07-27 | 2017-03-01 | 谢绍舜 | Integral light filtrate water treatment filter pond |
| CN108545793A (en) * | 2018-05-07 | 2018-09-18 | 清华大学深圳研究生院 | A kind of filtrate for handling the suspension rapid filter of closure option |
| CN109354335A (en) * | 2018-12-14 | 2019-02-19 | 谢绍舜 | The optimum organization technique of town domestic sewage processing |
| CN111135724A (en) * | 2020-01-14 | 2020-05-12 | 安徽奇书生物科技有限公司 | Flow control separation ultrafiltration device |
| EP4159693A4 (en) * | 2020-06-02 | 2023-08-23 | BKT Co., Ltd. | Wastewater filtering method and apparatus comprising filter media of different sizes |
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