CN101830533A - V-shaped air floating filter with deslagging function - Google Patents
V-shaped air floating filter with deslagging function Download PDFInfo
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- CN101830533A CN101830533A CN201010187064A CN201010187064A CN101830533A CN 101830533 A CN101830533 A CN 101830533A CN 201010187064 A CN201010187064 A CN 201010187064A CN 201010187064 A CN201010187064 A CN 201010187064A CN 101830533 A CN101830533 A CN 101830533A
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Abstract
The invention provides a V-shaped air floating filter with a deslagging function, which relates to a water conditioning structure for a water treatment plant, in particular to the V-shaped air floating filter. The V-shaped air floating filter aims to solve the problems of the existing air floating filter that the hydraulic load of the filter is not easily matched with higher hydraulic load of the air floating filter, dropped residues in a backwashing scum layer can not be thoroughly removed, and the phenomena of spilling materials or mixing filter materials occur on a filter material layer. In the invention, main bodies of four V-shaped air floating filters are symmetrically arranged at the two sides of an influent water distribution groove; the upper side of each filter is separated into an air floating contact area and an air floating separation area by a partition wall; each filter is sequentially provided with an air-water chamber, a filter plate support bracket, a filter plate, a long-handled filtering head, a gravel supporting layer and a quartz sand homogeneous filter material from bottom to top; and a dump tank is arranged on a side wall opposite to the partition wall, a sediment scraper is connected with the side wall of the filter by a track, and a microbubble generating device is connected with a main delivery pipe for dissolved water in gas. The V-shaped air floating filter is especially applicable to upgrading old water plants adopting the V-shaped filter.
Description
Technical field
The present invention relates to a kind of water purification plant water conditioning structures, be specifically related to a kind of V-type Airfloat filtering pond with deslagging function.
Background technology
At present, water purification plant often adopts the technology of first air supporting after-filtration when handling high algae water or low temperature and low turbidity water.Existing water treatment building with air flotation pool and mobile cover filter tank, conventional rapid filter or being combined into one of flap valve filter tank is because all there is weak point separately in these multi-form Airfloat filtering pond self structure and operation scheme.Air supporting mobile cover filter tank, when its mobile cover operation is carried out backwash to the filter tank, big especially to the disturbance of water surface scum layer, it is stable to influence scum silica frost, and the slag that falls of generation blocks the filter tank filter material layer, reduces and produces water hydraulic load and effluent quality, shorten backwashing period, for the separating effect that guarantees air flotation pool also needs the extra filter tank filtering layer that increases with headwater depth,, be difficult for arranging in pairs or groups with the higher hydraulic load of air flotation pool simultaneously because the hydraulic load in mobile cover filter tank own is less; The air supporting conventional rapid filter, because the hydraulic load of conventional rapid filter is lower, be difficult for arranging in pairs or groups with the higher hydraulic load of air flotation pool, make its floor space bigger, the initial cost height, the slag that water surface scum layer produces is fallen on the filtrate, block the filter tank filter material layer, owing to can only carry out backwash for water, when backwash intensity was hanged down, it was clean to fall the slag backwash to the air supporting scum layer on the filter material layer, when backwash intensity is big, both wasted a large amount of backwash water, and it adopts central drainage tray draining to cause easily that again filter material layer runs material, for the separating effect that guarantees air flotation pool also needs the extra filter tank filter material layer that increases with headwater depth; Air supporting flap valve filter tank, the scum layer on water layer surface easily produces slag and falls to the filter tank filter material layer, blocks even penetrates filter material layer, makes the water outlet water quality deterioration, the backwash cycle shortens, though adopt air water associating backwash, because backwash waste adopts the sequence batch (draining, the filtrate of filter material layer can run in a large number expects to the filtrate inlet flume, and falling slag, scum layer can't be rinsed out up hill and dale, the multilayer filtrate that it adopts the filtrate ginseng often occurs and mixes phenomenon during backwash, have a strong impact on the normal filtration effect in filter tank.
Summary of the invention
The objective of the invention is in order to solve in the existing Airfloat filtering pond, the filter tank hydraulic load is difficult for arranging in pairs or groups with the higher hydraulic load of air flotation pool, floor space is big, during back flushing, the falling slag and can not be fallen of scum layer by cleaning down, the problem that filter material layer runs material or the mixed phenomenon of filtrate ginseng also occurs, and then a kind of V-type Airfloat filtering pond with deslagging function is provided.
Technical scheme of the present invention is: the present invention includes four V-type Airfloat filtering pond main bodys, water inlet pipe, static mixer, water inlet pneumatic diaphragm valve; sharp crested weir; V-type filter tank water inlet distribution trough; dissolved air water transfer lime assembly; dissolved air water is carried and is responsible for; V-type groove; water discharge valve; quartz sand homogeneous filtering material layer; gravel supporting layer; filter plate; filter plate bracing frame; strainer head; H shape cell body; air water chamber; filter plate bracing frame; filter plate; a plurality of strainer heads; gravel supporting layer; quartz sand homogeneous filtering material layer; trapped well; effluent weir; clear water pipe; back flushing inlet pipe and back flushing water inlet pipe; it also comprises slag scraper; ash pit; scum pipe and micro bubble generation device; described four areas equate and cross section is " protruding " the V-type Airfloat filtering pond main body of shape is symmetricly set in the both sides of V-type filter tank water inlet distribution trough, the protuberance of " several " shape barricade of per two symmetric V-type Airfloat filtering pond main bodys is relative, the intravital partition wall of V-type Airfloat filtering pond master is arranged between " several " shape barricade and the sidewall relative with it, between " several " shape barricade and partition wall, be provided with sharp crested weir, the below at each " several " shape barricade middle part respectively is provided with two water inlet pneumatic diaphragm valves, the middle part of each V-type Airfloat filtering pond main body is provided with the H shape cell body of perforation in the direction perpendicular to partition wall, the intermediate membrane of H shape cell body is divided into the tank on top and the central air water distribution trough of bottom with H shape cell body, water discharge valve downward-sloping near an end of partition wall and bottom partition wall is connected on the intermediate membrane of H shape cell body, be provided with the air water chamber from the bottom to top in each V-type Airfloat filtering pond main body, the filter plate bracing frame, filter plate, a plurality of strainer heads, gravel supporting layer and quartz sand homogeneous filtering material layer, the upper surface of quartz sand homogeneous filtering material layer is positioned at the below of the upper surface of H shape cell body, described a plurality of strainer head is uniform and vertically pass filter plate and filter plate bracing frame, on the partition wall between the air water chamber of H shape cell body and its both sides, be respectively arranged with air distribution hole and water square hole laterally uniform and that connect down, the top of two relative sidewalls is provided with the V-type groove parallel with H shape cell body in each V-type Airfloat filtering pond main body, V-type groove bottom is evenly equipped with the V-type groove and sweeps and wash the prosopyle, the top of the intravital quartz sand homogeneous filtering material of each V-type Airfloat filtering pond master layer is the flotation separation zone, a plurality of dissolved air water pipe napexes that vertically are set up in parallel communicate and become dissolved air water transfer lime assembly, dissolved air water transfer lime assembly is arranged between the partition wall and sharp crested weir of each V-type Airfloat filtering pond main body, four dissolved air water transfer lime assemblies are all carried to be responsible for a dissolved air water and are communicated, dissolved air water transfer lime assembly constitutes the air supporting zone of action, into water space is left in the bottom surface of air supporting zone of action and V-type Airfloat filtering pond main body, the air supporting zone of action communicates with the flotation separation zone by the water-in of partition wall top, static mixer is arranged in the water inlet pipe, water inlet pipe is communicated with an end of V-type filter tank water inlet distribution trough, one end of back flushing inlet pipe and back flushing water inlet pipe inserts the central air water distribution trough of each V-type Airfloat filtering pond main body respectively, the other end of back flushing inlet pipe links to each other with the air blast machine room, the other end of back flushing water inlet pipe links to each other with water pump, two trapped wells are symmetricly set in the V-type Airfloat filtering pond outside, the both sides of trapped well communicate with the central air water distribution trough of adjacent two V-type Airfloat filtering pond main bodys respectively by pipeline, two effluent weirs are vertically installed in the trapped well, the clear water pipe is arranged on the sidewall of two trapped wells between the effluent weir, described ash pit is arranged on the sidewall relative with partition wall in the V-type Airfloat filtering pond main body, ash pit is perpendicular to the V-type groove and be positioned at its top, the bottom of ash pit is interlinked to the outside by scum pipe and V-type Airfloat filtering pond pond, slag scraper is connected with the sidewall of V-type Airfloat filtering pond main body by the track of both sides, slag scraper is parallel to ash pit and position thereon, and described micro bubble generation device and dissolved air water are carried to be responsible for and linked to each other.
The present invention has following beneficial effect: first, V-type filter tank hydraulic load is higher, can well arrange in pairs or groups with the air flotation pool of higher hydraulic load and use the advantage that also can give full play to the high hydraulic load of air flotation pool, solved the elevation connection problem in air flotation pool and V-type filter tank, and further reduce the structures floor space, guarantee the safety and stability of effluent quality, adopt biphase gas and liquid flow mixing air dissolved pump to produce the mode of microbubble simultaneously, reach and carry the high yield water hydraulic load; The second, V-type filter tank filter material layer can reach 2.0m～2.5m with headwater depth, can guarantee the separating effect that air supporting is handled well, does not need additionally to increase filter material layer with headwater depth, and this point is specially adapted to adopt the old water factory in V-type filter tank to carry out the transformation of Airfloat filtering pond; The 3rd, the average filtrate is adopted in the V-type filter tank, and filter material layer is thicker, does not have the phenomenon that the filtrate ginseng is mixed during backwash, guarantees effluent quality effectively; The 4th, the V-type filter tank adopts air water associating backwash to add its unique surface sweep washing again, can save a large amount of backwash water yields on the one hand, lasting always on the other hand surface sweep washing can produce water surface air supporting scum layer on filter material layer the slag that falls is swept wash clean, the obstructing problem of perforation header/plate of having avoided the air supporting scum layer to fall slag and having caused, guarantee the backwash effect in filter tank, prolonged the filter tank backwash cycle, guaranteed the filter tank effluent quality; The 5th, can realize two kinds of switchings between technology of air supporting-filter and filter by adding V-type groove water inlet gate valve, to adapt to the variation that water quality types such as high algae, high turbid and low-temperature and low turbidity alternately appear in a year in the pending water water quality of water purification plant, its scope of application is strengthened.The present invention has simplified the production management flow process, optimizes the water-purifying process flow process, has reduced investment and working cost, saves cost.
Description of drawings
Fig. 1 is orthographic plan of the present invention (synoptic diagram of illustrated four V-type Airfloat filtering pond main bodys for being dissectd by the different heights level); Fig. 2 is the A-A sectional view of Fig. 1; Fig. 3 is the B-B sectional view of Fig. 1; Fig. 4 is that the present invention filters the operating mode synoptic diagram; Fig. 5 is a back flushing operating mode synoptic diagram of the present invention; Fig. 6 is the structural representation of trapped well among the present invention; Fig. 7 is the F-F sectional view of Fig. 6; Fig. 8 is the partial enlarged drawing E of V-type groove among the present invention among Fig. 3; Fig. 9 is a micro bubble generation device structural representation of the present invention.
Embodiment
Embodiment one: the V-type Airfloat filtering pond that present embodiment is described in conjunction with Fig. 1 to Fig. 9 with deslagging function, it comprises four V-type Airfloat filtering pond main bodys 11, water inlet pipe 1, static mixer 2, water inlet pneumatic diaphragm valve 11-16-1; sharp crested weir 4; V-type filter tank water inlet distribution trough 6; dissolved air water transfer lime assembly 7; dissolved air water is carried and is responsible for 7-1; V-type groove 11-1; water discharge valve 11-1-3; quartz sand homogeneous filtering material layer 11-2; gravel supporting layer 11-3; filter plate 11-4; filter plate bracing frame 11-5; strainer head 11-6; H shape cell body 11-7; air water chamber 11-14; filter plate bracing frame 11-5; filter plate 11-4; a plurality of strainer head 11-6; gravel supporting layer 11-3; quartz sand homogeneous filtering material layer 11-2; trapped well 8; effluent weir 8-1; clear water pipe 8-2; back flushing inlet pipe 12 and back flushing water inlet pipe 13; it also comprises slag scraper 11-15; ash pit 11-8; scum pipe 11-9 and micro bubble generation device 10; described four areas equate and cross section is " protruding " the V-type Airfloat filtering pond main body 11 of shape is symmetricly set in the both sides of V-type filter tank water inlet distribution trough 6, the protuberance of " several " shape barricade 11-16 of per two symmetric V-type Airfloat filtering pond main bodys 11 is relative, partition wall 11-17 in the V-type Airfloat filtering pond main body 11 are arranged between " several " shape barricade 11-16 and the sidewall relative with it, between " several " shape barricade 11-16 and partition wall 11-17, be provided with sharp crested weir 4, the below at each " several " shape barricade 11-16 middle part respectively is provided with two water inlet pneumatic diaphragm valve 11-16-1, the middle part of each V-type Airfloat filtering pond main body 11 is provided with the H shape cell body 11-7 of perforation in the direction perpendicular to partition wall 11-17, the intermediate membrane 11-7-3 of H shape cell body 11-7 is divided into the tank 11-7-1 on top and the central air water distribution trough 11-7-2 of bottom with H shape cell body 11-7, the intermediate membrane 11-7-3 of H shape cell body 11-7 goes up water discharge valve 11-1-3 downward-sloping near the end of partition wall 11-17 and bottom partition wall 11-17 and is connected, be provided with air water chamber 11-14 from the bottom to top in each V-type Airfloat filtering pond main body 11, filter plate bracing frame 11-5, filter plate 11-4, a plurality of strainer head 11-6, gravel supporting layer 11-3 and quartz sand homogeneous filtering material layer 11-2, the upper surface of quartz sand homogeneous filtering material layer 11-2 is positioned at the below of the upper surface of H shape cell body 11-7, described a plurality of strainer head 11-6 is uniform and vertically pass filter plate 11-4 and filter plate bracing frame 11-5, on the partition wall between the air water chamber 11-14 of H shape cell body 11-7 and its both sides, be respectively arranged with air distribution hole 11-11 and water square hole 11-12 laterally uniform and that connect down, the top of two relative sidewalls is provided with the V-type groove 11-1 parallel with H shape cell body 11-7 in each V-type Airfloat filtering pond main body 11, V-type groove 11-1 bottom is evenly equipped with the V-type groove and sweeps and wash prosopyle 11-1-2, the top of quartz sand homogeneous filtering material layer 11-2 in each V-type Airfloat filtering pond main body 11 is flotation separation zone b, a plurality of dissolved air water pipe napexes that vertically are set up in parallel communicate and become dissolved air water transfer lime assembly 7, dissolved air water transfer lime assembly 7 is arranged between the partition wall 11-17 and sharp crested weir 4 of each V-type Airfloat filtering pond main body 11, four dissolved air water transfer lime assemblies 7 all carry person in charge 7-1 to communicate with a dissolved air water, dissolved air water transfer lime assembly 7 constitutes air supporting zone of action a, into water space is left in the bottom surface of air supporting zone of action a and V-type Airfloat filtering pond main body 11, air supporting zone of action a communicates with flotation separation zone b by the water-in 11-17-1 of partition wall 11-17 top, static mixer 2 is arranged in the water inlet pipe 1, water inlet pipe 1 is communicated with an end of V-type filter tank water inlet distribution trough 6, one end of back flushing inlet pipe 12 and back flushing water inlet pipe 13 inserts the central air water distribution trough 11-7-2 of each V-type Airfloat filtering pond main body 11 respectively, the other end of back flushing inlet pipe 12 links to each other with gas blower, the other end of back flushing water inlet pipe 13 links to each other with water pump, two trapped wells 8 are symmetricly set in the V-type Airfloat filtering pond outside, the both sides of trapped well 8 communicate with the central air water distribution trough 11-7-2 of adjacent two V-type Airfloat filtering pond main bodys 11 respectively by pipeline, two effluent weir 8-1 are vertically installed in the trapped well 8, clear water pipe 8-2 is arranged on the sidewall of two trapped wells 8 between the effluent weir 8-1, described ash pit 11-8 is arranged on the sidewall relative with partition wall 11-17 in the V-type Airfloat filtering pond main body 11, ash pit 11-8 is perpendicular to V-type groove 11-1 and be positioned at its top, the bottom of ash pit 11-8 is interlinked to the outside by scum pipe 11-9 and V-type Airfloat filtering pond pond, slag scraper 11-15 is connected with the sidewall of V-type Airfloat filtering pond main body 11 by the track of both sides, slag scraper 11-15 is parallel to ash pit 11-8 and position thereon, and described micro bubble generation device 10 and dissolved air water are carried and be responsible for 7-1 and link to each other.The space of air supporting zone of action a bottom is the inlet of pending water, contact formation bubble flco with the microbubble following current at the pending water of air supporting zone of action a, the outlet of air supporting zone of action a is located at its top, bubble flco overflow water outlet enters the flotation separation zone b that is positioned at V-type Airfloat filtering pond main body 11 tops, and slag scraper 11-15 links to each other with numerical control device.Utilize the bigger head loss of quartz sand homogeneous filtering material layer 11-2, can make the air supporting water outlet water yield and water quality uniform and stable, saved the perforated pipe that catchments, avoided the bubble settling of floccus to block perforated pipe.When filtering, adopts the V-type Airfloat filtering pond constant water level filtering, help the stable of scum silica frost, adopt combined water and air backwash simultaneously with surface sweep washing, the surface sweep washing of Chi Xuing helps the slag that falls is washed to the scum silica frost of filter material surface always, avoid traditional Airfloat filtering pond may problem, the problem includes: the problem that the top layer filtrate blocks easily, effectively prolong the backwashing period in filter tank, save water factory's self water consumption.Simultaneously, the available depth that quartz sand homogeneous filtering material layer 11-2 goes up up to 2m can ensure the dissolved air flotation effect preferably as flotation separation zone b, in order further to improve the hydraulic load of V-type Airfloat filtering pond, can be at the available depth that increases on the basis that increases quartz sand homogeneous filtering material layer on the filter material layer.In addition, because the filter tank filter material layer crosses the water head loss up to 1.5m～2.0m, avoided adopting perforation header/plate and air supporting scum layer to fall slag and the obstructing problem of perforation header/plate of causing.
Embodiment two: the V-type Airfloat filtering pond that present embodiment is described in conjunction with Fig. 9 with deslagging function, described micro bubble generation device 10 is by biphase gas and liquid flow air dissolved pump 10-3, knockout drum 10-4, vacuum meter 10-2, tensimeter 10-6, reducing valve 10-7, vent valve 10-5 and water discharge valve 10-1 form, hydraulic pipe is connected with biphase gas and liquid flow air dissolved pump 10-3 with vacuum meter 10-2 by water discharge valve 10-1 successively, the end of knockout drum 10-4 is connected with biphase gas and liquid flow air dissolved pump 10-3, the other end of knockout drum 10-4 is connected with reducing valve 10-7 by tensimeter 10-6, and the top of knockout drum 10-4 is provided with vent valve 10-5.The molten gas of micro bubble generation device 10 partly is biphase gas and liquid flow air dissolved pump 10-3, for avoiding air pocket to produce, behind biphase gas and liquid flow air dissolved pump 10-3, add gas-liquid separating tank 10-4, and through reducing valve 10-7 decompression generation microbubble, to produce the little and uniform microbubble of sufficient amount, can also save and use the microbubble reliever that costs an arm and a leg and block easily, avoid the dissolved air release device is overhauled, be convenient to the operational management of regular job and equipment.Other composition of present embodiment is identical with embodiment one with annexation.
Embodiment three: the V-type Airfloat filtering pond that present embodiment is described in conjunction with Fig. 1 and Fig. 2 with deslagging function, it also comprises traverse baffle 5, described traverse baffle 5 is arranged between dissolved air water transfer lime assembly 7 and the sharp crested weir 4, the top of traverse baffle 5 is fixed on the inwall of V-type Airfloat filtering pond main body 11 top boards, leaves into water space between the base plate of the bottom of traverse baffle 5 and V-type Airfloat filtering pond main body 11.Traverse baffle 5 is used to change the flow direction of pending water.Other composition of present embodiment is identical with embodiment one or two with annexation.
Embodiment four: the V-type Airfloat filtering pond that present embodiment is described in conjunction with Fig. 1 to Fig. 5 with deslagging function, it also comprises V-type groove water inlet gate valve 11-1-1, described partition wall 11-17 goes up and V-type groove 11-1 joint is provided with V-type groove water-in 11-1-4, V-type groove water-in 11-1-4 is positioned at the top of V-type groove 11-1 upper surface, and the outside of V-type groove water-in 11-1-4 is provided with V-type groove water inlet gate valve 11-1-1.By the unlatching of control V-type groove water inlet gate valve 11-1-1, realize air supporting-filter and filter two kinds of switchings between treatment process, to adapt to alternately changing of pending water water quality.Other composition of present embodiment is identical with embodiment one, two or three with annexation.
Operation principle of the present invention: when high algae water or low temperature and low turbidity water air-float filtration; Close earlier V-type groove water inlet gate valve 11-1-1; One end of water inlet pipe 1 links to each other with sedimentation basin; Its other end communicates with V-type filter tank water inlet distributing trough 6; The pending water that static mixer 2 mixes in water inlet pipe 1 is by V-type filter tank water inlet distributing trough 6; Pending water is earlier by the moving diaphragm valve 11-16-1 of influent gas; Sharp-crested weir 4 and deflection plate 5 uniform distributions enter four V-type Airfloat filtering pond main bodys 11; The dissolved air water that is formed by biphase gas and liquid flow air dissolved pump 10-3 and knockout drum 10-4 produces the little and uniform microbubble of capacity through pressure-reducing valve 10-7 decompression; The microbubble that produces contacts formation bubble flco in contact zone of dissolved air flotation a bottom with the pending water collision that enters; Upwards the flow through contact zone of dissolved air flotation a outlet of bubble flco enters flotation separation zone b; The bubble flco rises to the surface in flotation separation zone b separation and forms scum silica frost; The scum silica frost that forms is scraped to ash pit 11-8 and through scum pipe 11-9 by the Slag Scraping Device 11-15 that is located at V-type Airfloat filtering pond main body 11 tops and is regularly discharged; Water after air supporting is processed is through the quartz sand homogeneous filtering material layer 11-2 of V-type Airfloat filtering pond main body 11; Gravel supporting layer 11-3; Filter plate 11-4 and a plurality of strainer head 11-6 flow into the air water chamber 11-14 of bottom, filter tank; Import central air water distributing trough 11-7-2 through water square hole 11-12 again, finally by by trapped well 8; Effluent weir 8-1; Clear water pipe 8-2 flow to next processing structures or uses for the user.
When pending water water quality is not suitable for adopting air supporting to handle, filtration such as high muddy water, with pending water through coagulation, the post precipitation water outlet enters V-type filter tank water inlet distribution trough 6 by water inlet pipe 1, open V-type groove water inlet gate valve 11-1-1 earlier, do not start micro bubble generation device 10, through the pending water of mixed flocculation again through pneumatic diaphragm valve 11-16-1; sharp crested weir 4 and traverse baffle 5 uniformly distributings enter into the air supporting zone of action a of four V-type Airfloat filtering pond main bodys 11; enter V-type groove 11-1 via V-type groove water inlet gate valve 11-1-1 again; sweep by the V-type groove of V-type groove 11-1 bottom and wash prosopyle 11-1-2 water outlet and the overflow of groove top evenly enters the filter tank; then by quartz sand homogeneous filtering material layer 11-2; gravel supporting layer 11-3; filter plate 11-4 and a plurality of strainer head 11-6 flow into the air water chamber 11-14 of bottom, filter tank; import central air water distribution trough 11-7-2 through water square hole 11-12 again, at last via trapped well 8; effluent weir 8-1; clear water pipe 8-2 flow to next and handles structures or use for the user.
Before the back flushing of V-type Airfloat filtering pond, for preventing the destruction of back flushing to scum silica frost, with slag scraper 11-15 the scum silica frost on surface, filter tank is struck off, turn the into open degree of water pneumatic diaphragm valve 11-16 simultaneously down, making flooding quantity satisfy V-type groove 11-1 bottom V-type groove just sweeps and washes prosopyle 11-1-2 institute water requirement, open V-type groove water inlet gate valve 11-1-1 and a part of pending water is swept by the V-type groove wash prosopyle 11-1-2 and enter the filter tank, opening water discharge valve 11-1-3 discharges until the filter tank water surface with the top of drainage tray 11-7 equal through drainage tray 11-7 the water of filter material surface then.V-type Airfloat filtering pond backwash process is as follows: the first step, start gas blower, open intake valve, air evenly enters the bottom of V-type Airfloat filtering pond main body 11 via the air distribution hole 11-11 of back flushing inlet pipe 12, central air water distribution trough 11-7-2, by a plurality of strainer head 11-6 ejections, the gas of ejection is sheared the impurity on filter material layer surface and is cleaned and be suspended in the filter material layer surface; Sweep by V-type groove 11-1 bottom V-type groove in addition and wash prosopyle 11-1-2 and continue to intake to the filter tank, the lateral current that produces on the filter material layer surface forms surface sweep washing, lateral current is pushed impurity to drainage tray 11-7-1, start water pump simultaneously, open the back flushing water intaking valve, this moment, empty G﹠W entered central air water distribution trough 11-7-2 via back flushing water inlet pipe 13 simultaneously, evenly enter air water chamber 11-14 through air distribution hole 11-11 and water square hole 11-12 respectively again, enter filter material layer through a plurality of strainer head 11-6 again, filtrate is further washed, simultaneously, surface sweep washing is still proceeded; Second step, close back flushing intake valve 12-1, stop gas and dash, independent water is the back flushing several minutes again, adds the surface sweep washing that always continues, and the impurity that will be suspended in the filter material layer surface at last all pours drainage tray 11-7-1.Wherein gas is towards intensity 15L/ (sm
2), water is 6L/ (sm towards intensity
2), laterally sweeping and washing intensity is 1.8L/ (sm
2).
Scale is 70,000 m
3The V-type Airfloat filtering pond of/d with deslagging function, the upflow velocity of pending water is 20mm/s in the air flotation pool zone of action a, air water duration of contact is 1.5min, the downward flow velocity of pending water is 3mm/s in the b of flotation separation zone, and the disengaging time of bubble flco and water is 15min, filtering velocity 10.8m/h, backwashing period 48h, the length of four V-type Airfloat filtering pond main bodys 11 is respectively 3.5m, the wide 9.7m that is respectively, and floor space is 33.95m altogether
2, get of the molten gas water inlet of filter back water as biphase gas and liquid flow air dissolved pump 10-3, reflux ratio is regulated in 8%～12% scope, and wherein, the particle diameter of quartz sand is 0.95～1.35mm, nonuniformity coefficient K
80=1.0～1.3.
Claims (4)
1. V-type Airfloat filtering pond with deslagging function; It comprises four V-type Airfloat filtering pond main bodys (11); Water inlet pipe (1); Static mixer (2); Water inlet pneumatic diaphragm valve (11-16-1); Sharp-crested weir (4); V-type filter tank water inlet distributing trough (6); Dissolved air water carrier pipe assembly (7); Dissolved air water is carried supervisor (7-1); V-type groove (11-1); Draining valve (11-1-3); Quartz sand homogeneous filtering material layer (11-2); Gravel supporting layer (11-3); Filter plate (11-4); Filter plate bracing frame (11-5); Strainer head (11-6); H shape cell body (11-7); Air water chamber (11-14); Filter plate bracing frame (11-5); Filter plate (11-4); A plurality of strainer heads (11-6); Gravel supporting layer (11-3); Quartz sand homogeneous filtering material layer (11-2); Trapped well (8); Effluent weir (8-1); Clear water pipe (8-2); Backwash air inlet pipe (12) and backwash water inlet pipe (13); It is characterized in that: it also comprises Slag Scraping Device (11-15); Ash pit (11-8); Scum pipe (11-9) and micro bubble generation device (10); The V-type Airfloat filtering pond main body (11) that described four areas equate and cross section is " protruding " shape is symmetricly set in the both sides of V-type filter tank water inlet distributing trough (6); The protuberance of " several " shape barricade (11-16) of the V-type Airfloat filtering pond main body (11) of per two symmetries is relative; Partition wall (11-17) in the V-type Airfloat filtering pond main body (11) is arranged between " several " shape barricade (11-16) and the sidewall relative with it; Between " several " shape barricade (11-16) and partition wall (11-17), be provided with sharp-crested weir (4); The below at each " several " shape barricade (11-16) middle part respectively arranges two water inlet pneumatic diaphragm valves (11-16-1); The middle part of each V-type Airfloat filtering pond main body (11) is provided with the H shape cell body (11-7) of perforation in the direction perpendicular to partition wall (11-17); The intermediate membrane (11-7-3) of H shape cell body (11-7) is divided into the tank (11-7-1) on top and the central air water distributing trough (11-7-2) of bottom with H shape cell body (11-7); The upper end near partition wall (11-17) of the intermediate membrane (11-7-3) of H shape cell body (11-7) draining valve (11-1-3) downward-sloping and bottom partition wall (11-17) is connected; Be provided with from the bottom to top air water chamber (11-14) in each V-type Airfloat filtering pond main body (11); Filter plate bracing frame (11-5); Filter plate (11-4); A plurality of strainer heads (11-6); Gravel supporting layer (11-3) and quartz sand homogeneous filtering material layer (11-2); The upper surface of quartz sand homogeneous filtering material layer (11-2) is positioned at the below of the upper surface of H shape cell body (11-7); Described a plurality of strainer head (11-6) is uniform and vertically pass filter plate (11-4) and filter plate bracing frame (11-5); Partition wall between the air water chamber (11-14) of H shape cell body (11-7) and its both sides upper; Be respectively arranged with down laterally uniform and the air distribution hole (11-11) and the water square hole (11-12) that connect; The top of two relative sidewalls is provided with the V-type groove (11-1) parallel with H shape cell body (11-7) in each V-type Airfloat filtering pond main body (11); V-type groove (11-1) bottom is evenly equipped with the V-type groove and sweeps and wash inlet opening (11-1-2); The top of the quartz sand homogeneous filtering material layer (11-2) in each V-type Airfloat filtering pond main body (11) is flotation separation zone (b); A plurality of dissolved air water pipe napexes that vertically are set up in parallel communicate and become dissolved air water carrier pipe assembly (7); Dissolved air water carrier pipe assembly (7) is arranged between the partition wall (11-17) and sharp-crested weir (4) of each V-type Airfloat filtering pond main body (11); Four dissolved air water carrier pipe assemblies (7) all carry supervisor (7-1) to communicate with a dissolved air water; Dissolved air water carrier pipe assembly (7) consists of contact zone of dissolved air flotation (a); Contact zone of dissolved air flotation (a) leaves into the water space with the bottom surface of V-type Airfloat filtering pond main body (11); Contact zone of dissolved air flotation (a) communicates with flotation separation zone (b) by the water inlet (11-17-1) of partition wall (11-17) top; Static mixer (2) is arranged in the water inlet pipe (1); Water inlet pipe (1) is communicated with an end of V-type filter tank water inlet distributing trough (6); One end of backwash air inlet pipe (12) and backwash water inlet pipe (13) inserts respectively the central air water distributing trough (11-7-2) of each V-type Airfloat filtering pond main body (11); The other end of backwash air inlet pipe (12) links to each other with air blast; The other end of backwash water inlet pipe (13) links to each other with water pump; Two trapped wells (8) are symmetricly set in the V-type Airfloat filtering pond outside; The both sides of trapped well (8) communicate with the central air water distributing trough (11-7-2) of adjacent two V-type Airfloat filtering pond main bodys (11) respectively by pipeline; Two effluent weirs (8-1) are vertically installed in the trapped well (8); Clear water pipe (8-2) is arranged on the sidewall of the trapped well (8) between two effluent weirs (8-1); Described ash pit (11-8) is arranged on the sidewall relative with partition wall (11-17) in the V-type Airfloat filtering pond main body (11); Ash pit (11-8) is perpendicular to V-type groove (11-1) and the side of being located thereon; The bottom of ash pit (11-8) is interlinked to the outside by scum pipe (11-9) and V-type Airfloat filtering pond pond; Slag Scraping Device (11-15) is connected with the sidewall of V-type Airfloat filtering pond main body (11) by the track of both sides; Slag Scraping Device (11-15) is parallel to ash pit (11-8) and is located thereon, and described micro bubble generation device (10) carries supervisor (7-1) to link to each other with dissolved air water.
2. the V-type Airfloat filtering pond with deslagging function according to claim 1, it is characterized in that: described micro bubble generation device (10) is by biphase gas and liquid flow air dissolved pump (10-3), knockout drum (10-4), vacuum meter (10-2), tensimeter (10-6), reducing valve (10-7), vent valve (10-5) and water discharge valve (10-1) are formed, hydraulic pipe is connected with biphase gas and liquid flow air dissolved pump (10-3) with vacuum meter (10-2) by water discharge valve (10-1) successively, one end of knockout drum (10-4) is connected with biphase gas and liquid flow air dissolved pump (10-3), the other end of knockout drum (10-4) is connected with reducing valve (10-7) by tensimeter (10-6), and the top of knockout drum (10-4) is provided with vent valve (10-5).
3. the V-type Airfloat filtering pond with deslagging function according to claim 1 and 2, it is characterized in that: it also comprises traverse baffle (5), described traverse baffle (5) is arranged between dissolved air water transfer lime assembly (7) and the sharp crested weir (4), the top of traverse baffle (5) is fixed on the inwall of V-type Airfloat filtering pond main body (11) top board, leaves into water space between the base plate of the bottom of traverse baffle (5) and V-type Airfloat filtering pond main body (11).
4. the V-type Airfloat filtering pond with deslagging function according to claim 1 and 2, it is characterized in that: it also comprises V-type groove water inlet gate valve (11-1-1), described partition wall (11-17) is gone up and V-type groove (11-1) joint is provided with V-type groove water-in (11-1-4), V-type groove water-in (11-1-4) is positioned at the top of V-type groove (11-1) upper surface, and the outside of V-type groove water-in (11-1-4) is provided with V-type groove water inlet gate valve (11-1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101870649A CN101830533B (en) | 2010-05-31 | 2010-05-31 | V-shaped air floating filter with deslagging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101870649A CN101830533B (en) | 2010-05-31 | 2010-05-31 | V-shaped air floating filter with deslagging function |
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| Publication Number | Publication Date |
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| CN101830533A true CN101830533A (en) | 2010-09-15 |
| CN101830533B CN101830533B (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101870649A Expired - Fee Related CN101830533B (en) | 2010-05-31 | 2010-05-31 | V-shaped air floating filter with deslagging function |
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| CN (1) | CN101830533B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107021551A (en) * | 2016-01-29 | 2017-08-08 | 江苏扬子江天悦新材料有限公司 | A kind for the treatment of tank with cleaning equipment |
| CN109304057A (en) * | 2018-12-04 | 2019-02-05 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | V-type filter tank |
| CN109513245A (en) * | 2019-01-18 | 2019-03-26 | 浙江联池水务设备股份有限公司 | High-precision exempts from the stainless steel filter tank of filter |
| CN109626709A (en) * | 2018-11-13 | 2019-04-16 | 湖北汇环保科技有限公司 | River water body comprehensive purifying processing system |
| CN111569518A (en) * | 2020-05-15 | 2020-08-25 | 营口德瑞化工有限公司 | Liquid ammonia filter equipment |
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| CN1693218A (en) * | 2005-03-31 | 2005-11-09 | 哈尔滨工业大学 | Airfloat filtering pond |
| CN101108287A (en) * | 2007-05-11 | 2008-01-23 | 上海市政工程设计研究总院 | Air-float filter pool |
| KR20100056429A (en) * | 2010-04-19 | 2010-05-27 | 대웅이엔에스 (주) | The improving method for the removal efficiency of phosphorus by renovation of the rectangular settling clarifier |
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| CN2117938U (en) * | 1992-05-11 | 1992-10-07 | 茅金声 | Full siphon control air floating filtering pool with micro air bubble reaction |
| CN1686840A (en) * | 2005-03-28 | 2005-10-26 | 哈尔滨工业大学 | Counter-flow type cleaning strainer of floating gas |
| CN1693218A (en) * | 2005-03-31 | 2005-11-09 | 哈尔滨工业大学 | Airfloat filtering pond |
| CN101108287A (en) * | 2007-05-11 | 2008-01-23 | 上海市政工程设计研究总院 | Air-float filter pool |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107021551A (en) * | 2016-01-29 | 2017-08-08 | 江苏扬子江天悦新材料有限公司 | A kind for the treatment of tank with cleaning equipment |
| CN109626709A (en) * | 2018-11-13 | 2019-04-16 | 湖北汇环保科技有限公司 | River water body comprehensive purifying processing system |
| CN109304057A (en) * | 2018-12-04 | 2019-02-05 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | V-type filter tank |
| CN109513245A (en) * | 2019-01-18 | 2019-03-26 | 浙江联池水务设备股份有限公司 | High-precision exempts from the stainless steel filter tank of filter |
| CN109513245B (en) * | 2019-01-18 | 2023-12-12 | 浙江联池水务设备股份有限公司 | Stainless steel filter tank with high-precision filter-head-free |
| CN111569518A (en) * | 2020-05-15 | 2020-08-25 | 营口德瑞化工有限公司 | Liquid ammonia filter equipment |
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|---|---|
| CN101830533B (en) | 2011-12-21 |
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