CN104587727A - Multistage kieselguhr filter and filter method thereof - Google Patents
Multistage kieselguhr filter and filter method thereof Download PDFInfo
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- CN104587727A CN104587727A CN201410808155.8A CN201410808155A CN104587727A CN 104587727 A CN104587727 A CN 104587727A CN 201410808155 A CN201410808155 A CN 201410808155A CN 104587727 A CN104587727 A CN 104587727A
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Abstract
The invention relates to a multistage kieselguhr filter. A shell is provided with a water inlet and a water outlet. The multistage kieselguhr filter is characterized in that a quaquaversal plate is arranged in the shell; an arch-shaped water distribution baffle is arranged above the quaquaversal plate; 4-16 tubular filter units are perpendicularly installed on the quaquaversal plate; the lower part of the quaquaversal plate is provided with a water collection chamber; a water inlet tube is arranged at the middle part of the shell; one end of the water inlet tube is connected with the water inlet, and the other end is an open end arranged above the tubular filter units; a baffle is arranged above the open end of the water inlet tube; kieselguhr layers are uniformly paved on the surfaces of the tubular filter units. According to the kieselguhr filter, powdery kieselguhr is uniformly paved on the surfaces of the filter units of the filter to form a porous filter medium with a specific property, and thus intercepting suspended matter particles, colloids, dissolved organic matter and micro-organisms such as bacteria and algae in a water body; the shortages of purification of the existing conventional water treatment technique for algae purification and low-temperature and low-turbidity water purification can be overcome.
Description
Technical field
The present invention relates to the technical field of water technology, specifically a kind of multistage diatomaceous earth filter and filter method thereof.
Background technology
Micropollutant water is the common problem that world today's scope faces, the problem that especially the Organic substance in water content that causes of eutrophication pollution and industrial wastewater discharge is higher.In water, algae also affects Water purification effect, and some algae can produce Algae toxins in metabolic process, threatens human and livestock health, even causes death time serious.Meanwhile, the Lake Water lower for turbidity, conventional clarification filtration technology is difficult to the requirement meeting drinking water treatment.
China while rapid economic development, living standard significantly improve, also brings larger pollution to water environment over nearly 30 years.Especially the advancing by leaps and bounds of chemical industry, makes character and the complexity thereof of water pollutant, forms challenge greatly to conventional water-purifying process.In addition, China is after on July 1st, 2007, China started to perform new " standards for drinking water quality " (GB5749-2006), and set quota increases to 106 by 35 of primary standard.And the level of economic development of China's present stage determines source quality and also can not have basic improvement at short notice, the contradiction that therefore raising of water standard and source quality worsen also can be more outstanding within certain period.In the urgent need to developing effective drinking water purification equipment and technique, ensure water supply quality.And existing water treatment facilities are not enough for algae purification and low temperature and low turbidity water detergent power, cannot suspended particle in effectively catching water body, colloid, dissolved organic matter and the microorganism such as bacterium, algae, the demand of drinking water cannot be met.
Summary of the invention
The object of the present invention is to provide a kind of multistage diatomaceous earth filter and filter method thereof of improvement, it can to overcome in prior art in prior art conventional water treatment filter cannot effectively organics removal and microorganism, filter plant cannot recoil simultaneously, continues the some shortcomings used.
To achieve these goals, technical scheme of the present invention is: a kind of multistage diatomaceous earth filter, it mainly comprises housing, housing is provided with water inlet and delivery port, it is characterized in that: in housing, be provided with vaulted plate, arch water distribution baffle plate is provided with above vaulted plate, vaulted plate is vertically installed with 4-16 root tubular filter unit, the bottom of vaulted plate is collecting chamber, housing central section is provided with a water inlet pipe, one end of water inlet pipe is connected with water inlet, the other end is the top that openend is arranged at tubular filter unit, water inlet pipe is provided with baffle plate above openend, the surface uniform paving of tubular filter unit applies diatomite layer.
A kind of diatomite filtration method, is characterized in that: described filter method comprises the steps: A, in pre-plastic film mulch case, joins pre-plastic film mulch tripolite solution; B, prepare multistage diatomaceous earth filter, pre-plastic film mulch case forms circulation by overlaying between membrane pump and filter, and the tubular filter unit in pre-plastic film mulch case retains diatomite and forms diatomite layer; C, online plastic film mulch, fit over line plastic film mulch tripolite solution, utilize online plastic film mulch pump to add in filter by online plastic film mulch solution with water inlet in online plastic film mulch case; D, filtration, the water that conventional treatment is crossed by multistage diatomaceous earth filter water inlet, utilizes tubular filter unit to filter through conventional treatment delivery port, and the water after filtration flows out to from multistage diatomaceous earth filter delivery port and produces the mouth of a river; E, flushing, after diatomite lost efficacy, backwashing water is inner by delivery port access arrangement, and squeeze into compressed air from air inlet pipe, got off from filter element surface washing by diatomite, flushing water flows out from water inlet simultaneously; F, replace the multistage diatomaceous earth filter after rinsing with the multistage diatomaceous earth filter prepared in step B, proceed water filtration, multistage diatomaceous earth filter after flushing then repeats the program of step B, again retains diatomite at tubular filter unit and forms diatomite layer.
In housing of the present invention, vaulted plate is installed during use, tubular type filter element is vertically mounted on vaulted plate, the top of vaulted plate is provided with arch water distribution baffle plate, the bottom of vaulted plate is collecting chamber, collecting chamber has delivery port, water inlet is positioned at housing bottom, water inlet pipe is provided with in housing, this water inlet pipe is connected with water inlet, water inlet pipe top is provided with open top, open top is positioned at above tubular type filter element, baffle plate is provided with above open top, water inlet pipe bottom is provided with water distribution opening, arch water distribution baffle plate is positioned at water distribution overthe openings, the sidewall of housing is provided with air inlet pipe, the top of housing arranges exhaust outlet, tubular type filter element surface uniform paving applies diatomite.Powdered diatomite is laid on filter filter element surface by this diatomaceous earth filter uniformly, makes it be formed to have the porous filter medium of special properties, retains the suspended particle in water body, colloid, dissolved organic matter and the microorganism such as bacterium, algae thus.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the present invention's pre-plastic film mulch case and online plastic film mulch box structure schematic diagram.
Fig. 3 is the flow chart of filter method of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Label in each accompanying drawing is expressed as follows: 1 housing, 2 vaulted plates, 3 securing cover plates, 4 tubular filter unit, 5 arch water distribution baffle plates, 6 collecting chambers, 7 delivery ports, 8 water inlet pipes, 9 water inlets, 10 water inlet pipes, 11 sewage draining exits, 12 exhaust outlets, 13 baffle plates, 14 pull bars, 15 overfalls, 16 diatomite dosing mouths, 17 agitator interfaces, 18 interface of the level gauge, 19 water inlets, 20 liquid outlets, 21 online plastic film mulch casees, 22 online plastic film mulch pumps, 23 raw water pumps, 24 pre-plastic film mulch casees, 25 plastic film mulch pumps, 26 multistage diatomaceous earth filters, 27 filtered water tanks, 28 backwash pumps.
The multistage diatomaceous earth filter of one of the present invention, it mainly comprises housing, housing is provided with water inlet and delivery port, its difference with the prior art is: be provided with vaulted plate in housing, arch water distribution baffle plate is provided with above vaulted plate, vaulted plate is vertically installed with 4-16 root tubular filter unit, the bottom of vaulted plate is collecting chamber, housing central section is provided with a water inlet pipe, one end of water inlet pipe is connected with water inlet, the other end is the top that openend is arranged at tubular filter unit, water inlet pipe is provided with baffle plate above openend, the surface uniform paving of tubular filter unit applies diatomite layer.
Tubular filter unit is divided into two groups, is symmetricly set in the both sides of water inlet pipe, and the thickness of diatomite layer is 2-4mm, and the distance between adjacent tubular filter unit is 50-80mm.The top of housing is provided with exhaust outlet, and the sidewall of housing is provided with air inlet pipe, and air inlet pipe is connected with collecting chamber, and water inlet pipe bottom is provided with water distribution opening, and water distribution opening is arranged at the below of arch water distribution baffle plate.Correspondingly between vaulted plate with arch water distribution baffle plate arrange, the spindle space of the formation between vaulted plate and arch water distribution baffle plate, intermediate altitude is greater than the height at two ends.There is a difference in height between the openend of water inlet pipe and the top of tubular filter unit, difference in height is 2-6cm.
A kind of diatomite filtration method, its difference with the prior art is: described filter method comprises the steps: A, in pre-plastic film mulch case, joins pre-plastic film mulch tripolite solution; B, prepare multistage diatomaceous earth filter, pre-plastic film mulch case forms circulation by overlaying between membrane pump and filter, and the tubular filter unit in pre-plastic film mulch case retains diatomite and forms the thick diatomite layer of 2-4mm; C, online plastic film mulch, line plastic film mulch tripolite solution is fitted in online plastic film mulch case, (online plastic film mulch case is the same with pre-plastic film mulch box structure to utilize online plastic film mulch pump to be added in filter with water inlet by online plastic film mulch solution, it is exactly a water tank, add agitator, stir to keep diatomite in solution not sink to bottom half always, online plastic film mulch solution is also tripolite solution, concrete concentration is relevant with the water quality entering native system, turbidity is higher, required online plastic film mulch solution concentration is higher, generally at tens mg/L, about needs 30mg/L during influent turbidity 3NTU); D, filtration, the water that conventional treatment is crossed by multistage diatomaceous earth filter water inlet, utilizes tubular filter unit to filter through conventional treatment delivery port, and the water after filtration flows out to from multistage diatomaceous earth filter delivery port and produces the mouth of a river; E, flushing, after diatomite loses efficacy, (determination methods of inefficacy was the carrying out along with filtering, diatomite thickness increases gradually, filtration resistance increases gradually, and water flow reduces, and then needs backwash when water flow is down to and can not be met the requirement of system water yield), backwashing water is inner by delivery port access arrangement, squeeze into compressed air from air inlet pipe, got off from filter element surface washing by diatomite, flushing water flows out from water inlet simultaneously; F, replace the multistage diatomaceous earth filter after rinsing with the multistage diatomaceous earth filter prepared in step B, proceed water filtration, multistage diatomaceous earth filter after flushing then repeats the program of step B, again retains diatomite at tubular filter unit and forms diatomite layer.
In force, the entire run cycle of diatomaceous earth filter is divided into plastic film mulch, filtration and rinses three steps.
A, in pre-plastic film mulch case 24, join pre-plastic film mulch tripolite solution, only containing diatomite in pre-plastic film mulch tripolite solution, after concrete content should ensure that step B terminates, on filter element, the thickness of pre-plastic film mulch diatomite layer reaches 2-4mm, pre-plastic film mulch case is different from filtration device structure, be a water tank with agitator, accompanying drawing paper, is shown in Fig. 2; B, pre-plastic film mulch, pre-plastic film mulch tripolite solution through the water inlet of plastic film mulch pump 25 inflow filter 26, and flows back to pre-plastic film mulch case 24 by the delivery port of filter, between pre-plastic film mulch case and filter, form circulation, and filter element retains diatomite and forms diatomite layer; C, online plastic film mulch, line plastic film mulch tripolite solution is fitted in online plastic film mulch case 21, (online plastic film mulch case is the same with pre-plastic film mulch box structure to utilize online plastic film mulch pump 22 to be added in filter 26 with water inlet by online plastic film mulch solution, it is exactly a water tank, add agitator, stir to keep diatomite in solution not sink to bottom half always, online plastic film mulch solution is also tripolite solution, concrete concentration is relevant with the water quality entering native system, turbidity is higher, required online plastic film mulch solution concentration is higher, generally at tens mg/L; When influent turbidity 3NTU, online plastic film mulch solution concentration is about 30mg/L); D, filtration, the water that conventional treatment is crossed enters diatomaceous earth filter water inlet through pump 23, and utilize tubular type filter element to filter, the water after filtration flows out to filtered water tank 27 from diatomaceous earth filter delivery port; E, flushing, after diatomite lost efficacy, backwash pump 28 is inner by delivery port access arrangement by water, and squeeze into compressed air from air inlet pipe, got off from filter element surface washing by diatomite, flushing water flows out from water inlet simultaneously.
Wherein, comprise a casing at pre-plastic film mulch case, the bottom of casing is circular arc, and the top branch of casing is provided with diatomite dosing mouth, agitator interface and interface of the level gauge, and the side of casing is provided with overfall, and opposite side is provided with water inlet, and bottom is provided with liquid outlet.
The advantage of this device has:
1, the diatomite repeatedly precoating of different size can be realized, form uniform different diatomite layer;
2, investment cost few, equipment combination and simple to operate, is easy to maintenance and management, easily realizes automation;
3, good removal effect is had to the algae that common process is difficult to remove;
4, for the process of low temperature and low turbidity water, good effect is had.
Claims (6)
1. a multistage diatomaceous earth filter, it mainly comprises housing, housing is provided with water inlet and delivery port, it is characterized in that: in housing, be provided with vaulted plate, arch water distribution baffle plate is provided with above vaulted plate, vaulted plate is vertically installed with 4-16 root tubular filter unit, the bottom of vaulted plate is collecting chamber, housing central section is provided with a water inlet pipe, one end of water inlet pipe is connected with water inlet, the other end is the top that openend is arranged at tubular filter unit, and water inlet pipe is provided with baffle plate above openend, and the surface uniform paving of tubular filter unit applies diatomite layer.
2. the multistage diatomaceous earth filter of one according to claim 1, it is characterized in that: tubular filter unit is divided into two groups, be symmetricly set in the both sides of water inlet pipe, the thickness of diatomite layer is 2-4mm, and the distance between adjacent tubular filter unit is 50-80mm.
3. the multistage diatomaceous earth filter of one according to claim 1, it is characterized in that: the top of housing is provided with exhaust outlet, the sidewall of housing is provided with air inlet pipe, and air inlet pipe is connected with collecting chamber, water inlet pipe bottom is provided with water distribution opening, and water distribution opening is arranged at the below of arch water distribution baffle plate.
4. the multistage diatomaceous earth filter of one according to claim 1, is characterized in that: correspondingly between vaulted plate with arch water distribution baffle plate arrange, and the spindle space of the formation between vaulted plate and arch water distribution baffle plate, intermediate altitude is greater than the height at two ends.
5. the multistage diatomaceous earth filter of one according to claim 1, is characterized in that: there is a difference in height between the openend of water inlet pipe and the top of tubular filter unit, and difference in height is 2-6cm.
6. a diatomite filtration method, is characterized in that: described filter method comprises the steps: A, in pre-plastic film mulch case, joins pre-plastic film mulch tripolite solution; B, prepare multistage diatomaceous earth filter, pre-plastic film mulch case forms circulation by overlaying between membrane pump and filter, and the tubular filter unit in pre-plastic film mulch case retains diatomite and forms diatomite layer; C, online plastic film mulch, fit over line plastic film mulch tripolite solution, utilize online plastic film mulch pump to add in filter by online plastic film mulch solution with water inlet in online plastic film mulch case; D, filtration, the water that conventional treatment is crossed by multistage diatomaceous earth filter water inlet, utilizes tubular filter unit to filter through conventional treatment delivery port, and the water after filtration flows out to from multistage diatomaceous earth filter delivery port and produces the mouth of a river; E, flushing, after diatomite lost efficacy, backwashing water is inner by delivery port access arrangement, and squeeze into compressed air from air inlet pipe, got off from filter element surface washing by diatomite, flushing water flows out from water inlet simultaneously; F, replace the multistage diatomaceous earth filter after rinsing with the multistage diatomaceous earth filter prepared in step B, proceed water filtration, multistage diatomaceous earth filter after flushing then repeats the program of step B, again retains diatomite at tubular filter unit and forms diatomite layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410808155.8A CN104587727A (en) | 2014-12-23 | 2014-12-23 | Multistage kieselguhr filter and filter method thereof |
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| CN201410808155.8A CN104587727A (en) | 2014-12-23 | 2014-12-23 | Multistage kieselguhr filter and filter method thereof |
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Cited By (4)
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| CN106966427A (en) * | 2017-03-14 | 2017-07-21 | 襄阳龙蟒钛业有限公司 | The purification method of a kind of acidolysis titanium liquid and for the filter in method |
| CN108126409A (en) * | 2018-01-12 | 2018-06-08 | 黑珀（上海）工业技术有限公司 | A kind of novel PGO diesel oil overlay film back-flushing filtering system and its filter method |
| CN110354582A (en) * | 2019-06-27 | 2019-10-22 | 重庆中轻装备有限公司 | A kind of soy sauce filtration process |
| CN113521836A (en) * | 2021-08-17 | 2021-10-22 | 中煤科工集团重庆研究院有限公司 | Multiple monitoring filtering and backwashing system and automatic regulation and control mode thereof |
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| CN106966427A (en) * | 2017-03-14 | 2017-07-21 | 襄阳龙蟒钛业有限公司 | The purification method of a kind of acidolysis titanium liquid and for the filter in method |
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| CN113521836A (en) * | 2021-08-17 | 2021-10-22 | 中煤科工集团重庆研究院有限公司 | Multiple monitoring filtering and backwashing system and automatic regulation and control mode thereof |
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Application publication date: 20150506 |