One kind is removed contamination sand removing machine
The utility model is related to one kind and removed contamination sand removing machine, is not less than 5000~10000 more particularly, to a kind of day output
Side is installed above, and desanding adds and settles small gap fine filtering at one go and remove contamination and sand, slag point on elevator pump outlet pipeline after coarse rack
The plant equipment of way discharging device.It is mainly used in discharge pump works, city domestic sewage treatment plant, waterworks, industrial wastewater in advance to locate
The desanding in reason stage adds dirt-blocking dirt-cleaning equipment.The more pretreatment occasion of sand after coarse rack is particularly adapted to, film is more suitable for
The prime pretreatment occasion of handling process, being also adapted to sewage treatment plant's dilatation does not increase the occasion of civil engineering.
At present, pump lifts the preprocessor and equipment of water after known coarse rack：Elevator pump water outlet is in the water outlet of pump upper end
Mouth enters concrete buffer distribution reservoir, enters back into concrete fine fack pond, completes dirt-blocking dirt-cleaning by grid, grid water outlet is through longer
Concrete canal current stabilization enter rotational flow grit chamber, by sediment by rotational flow desanding system desanding, desanding device【Containing air blower, eddy flow
Sand setting mixer, gas, sandpipe road】Or horizontal-flow grit chamber puies forward sand equipment【Sand pump, running vehicle type sand sucker, sediment outflow pipeline】Complete,
Girt-water separation is completed by driven sand water separator；There is gate to be used for overhaul of the equipments before and after grid pond, setting pot；Grid seam is less
Fine grid is generally located on after fine fack, and must configure cleaning water lines, pressure water pump to complete the cleaning of grid.
Although occurring in that some the small combined plant equipment for being not required to concrete irrigation canals and ditches in recent years, because consider appearance and size and
Cost of transportation, the day output of mini-plant is general below 3000 sides, although also have larger process amount pin-connected panel unit equipment,
But the problem of there is big appearance and size, cost, high cost of transportation.And be all to arrive first fine fack into water, be followed by setting pot.
Remove contamination desanding equipment and technique of elevator pump water outlet has following defect after existing coarse rack：
Dirt-blocking dirt-cleaning is completed by grid, and desanding is by sediment by rotational flow pool equipment【Containing air blower, sediment by rotational flow mixer, gas, sand
Pipeline】Or horizontal-flow grit chamber puies forward sand equipment【Sand pump, running vehicle type sand sucker, sediment outflow pipeline】Complete, girt-water separation is by sand moisture
Completed from equipment；
Have in the middle of grid pond, setting pot current stabilization irrigation canals and ditches, it is front and rear have gate be used for overhaul of the equipments；
Lifting pump discharge has buffering current stabilization irrigation canals and ditches；
General grid grid seam is all more than 3 millimeters, it is impossible to intercept the slag thing of 1 millimeter or less size；
Grid in preceding, desanding rear, sand abrasion grid filtration part, sliding sealing surface and driving member under water；
Realize that slag, sand shunting discharge the mechanical tables of equipment machine day output of the one being readily transported all below 3000 sides；
The content of organics that shakes out is high, and contains slag thing in sand；
Moisture content of slagging tap is high；
Liquid level difference is larger before and after big flow fine filtering grid, it is larger to cross grid current speed, slag thing extruding grid seam power is larger, removes
Difficulty is larger；
Grid members hydraulic pressure load is big when grid blocks serious, and grid cost is high；
The whole pretreatment process floor space of the larger occasion for the treatment of capacity is big, and need to build pond body；
The many costs of control object are high.
Equipment is more, and energy consumption is big, safeguard, operating cost is high；
Configuration pressure wash water pump, water pipe and annex are needed when configuring big flow small gap grid；
Rotational flow grit chamber height dimension is larger and circumference enter circumference go out, pond body capacity utilization it is low；
In order to ensure that current stabilization low speed passes in and out setting pot, it is necessary to configure larger longer turnover pipeline；
Because sand setting tank depth is big, air-flow puies forward sand high energy consumption.
Utility model content
The purpose of this utility model is that a kind of structure is more reasonable, removes contamination slagging-off effect more preferably, lower the removing contamination of energy consumption is removed
The utility model solves the technical scheme that its technical problem used：One kind is removed contamination sand removing machine, including eddy flow is heavy
Sand pond, grid pond of the integrated device on rotational flow grit chamber end；It is tangentially-arranged in the middle part of the water inlet end of rotational flow grit chamber to have into water
Pipe, its middle and upper part sets flow apron, and the top that rotational flow grit chamber end is located at flow apron is set and grid pond water inlet phase
The overfall connect；Rotational flow grit chamber bottom is provided with center sand hopper, and center sand hopper outer ring is arranged with the extension sand launder communicated therewith；
The upper end of center sand hopper is provided with every cinder hole plate, and device has aeration sand-washing device below cinder hole plate；Rotational flow grit chamber bottom is also
It is provided with the sand filtration tank and water after filter groove for being looped around extension sand launder outer ring, the centrally disposed sand hopper landslide of extension sand launder, sand filtration tank
Lower section；Sand filtration tank is arranged on above water after filter groove, is provided with upper and lower two layers of filter screen, sand filtration tank and water after filter groove in it
Connected by the filter screen of lower floor；Picotan is installed, picotan includes water lift pipe in water after filter groove, water lift pipe it is upper
End is stretched out in rotational flow grit chamber, lower end insertion water after filter groove, and its outer wall is attached with water lift tracheae；It is provided with the top of water lift pipe
The cylinder tank of end opening；Setting pot center fixture has washing sand extraction device, and washing sand extraction device includes center sand extraction tube, leakage sand
The large cylinder of groove, upper end open；The water inlet of large cylinder and the delivery port of cylinder tank connect；Rotation is stretched out in center sand extraction tube upper end
Flow setting pot through sand leakage tank insert large cylinder, lower end insertion center sand hopper bottom, its outer wall, which is attached with, carries sand tracheae；Sand leakage tank is set
Put in large cylinder bottom and communicate therewith；The sand water connected with sand leakage tank bottom portion discharge tube is additionally provided with the top of rotational flow grit chamber
Separator；The discharge outlet of grit water separator is connected with water after filter groove, and sand removing hole is connected with sand hopper is connect.
Further, it is provided with grid pond and is divided into grid intake chamber and the two-part baffle plate of grid effluent trough, lattice
Grid cylinder is provided with grid effluent trough, grid cylinder is provided with the air flushing device being adapted to it；Grid cylinder water inlet end is provided with baffle plate
The circular hole being adapted, the water inlet end of grid cylinder and water side are provided with for sealed intensive hairbrush；Grid cylinder is internal to be axially provided with
The slag groove being adapted to it, slag groove upper end is higher by grid cylinder inner horizontal；The central shaft coaxial with grid cylinder is provided with slag groove,
One group of helical blade is provided with central shaft；Grid pond top arrangement has the driving dress for driving central shaft and grid cylinder to rotate
Put；The discharge end of slag groove is extend out to outside grid pond from grid cylinder water side；Water level control apparatus is additionally provided with grid pond.
Further, grid trench bottom sets grid discharge bay, and grid cylinder is arranged on above grid discharge bay, set between the two
It is equipped with division board；Grid cylinder both sides are each provided with the grid overflow launder that a bottom is connected with grid discharge bay, grid overflow launder
Side close to grid cylinder is provided with the lifting weir plate that bottom and division board are adapted；Division board, lifting weir plate, grid pond inwall,
Baffle plate coordinates the aqua storage tank for constituting and being adapted with grid cylinder；It is provided with grid intake chamber for monitoring the floating of its interior water level
Body, water level control apparatus is balance-type type lever construction, its one end suspension floating body, other end suspension lifting weir plate.
In order that the moisture content for obtaining sand is lower, slag trench bottom sets drainage orifice plate, and grid pond outer wall is located at slag groove end
End lower section is provided with water receiving tank, and the residue outlet that the connection of slag groove end is tilted upward, residue outlet is connected with dreg-accepting hopper.
Further, grit water separator likeness in form waterpower slanted screen, its top is provided with distribution channel, annulus sand leakage tank bottom
Discharge line and distribution channel connect；It is provided with grit water separator below slanted screen, slanted screen and water receiving chamber is set, slanted screen is provided with aperture
Sand net less than 0.2, water receiving chamber is the water-accepting basin of an all round closure, and water-accepting basin lower discharging tube device for upper end has buoyancy open-type row
Water valve, slanted screen top is with cover, and water-accepting basin, which is provided with air inlet pipe, water-accepting basin drainpipe, to be connect after lower resistance diaphragm type one-way valve and filter
Tank is connected.
Further, sand extraction tube bottom in center is provided with kuppe, is provided with the top of large cylinder and to enter with rotational flow grit chamber
The drainage pipeline that water pipe connects；Water receiving trench bottom and water inlet pipe connect；The delivery port and sand filtration tank upper level filter of grid discharge bay
The top UNICOM of screen cloth.
Further, in addition to air blower, airflow pipeline component and PLC control cabinet；Grit water separator slanted screen cavity, sand filtration
Groove, which is located above upper level filter screen cloth, is provided with tracheal tube；Air blower carries sand by air-flow tube assembly and picotan, washing
Device, aeration sand-washing device, grit water separator slanted screen cavity, sand filtration tank upper level filter screen cloth top, the pipe of air flushing device
Road couples；Airflow pipeline component is by a plurality of tracheae, magnetic valve, regulating valve, check valve set into check-valves is micro- resistance diaphragm type knot
Structure, magnetic valve is outdoor type.Control cabinet and air blower, magnetic valve, the drive device connection of grid cylinder, control cabinet is band PLC module
Outdoor type field control case.
In order that obtaining grid cylinder filter effect more preferably, the filtration fraction of grid cylinder filters the circular hole that bore dia is not less than φ 1 for one
Plate filter cylinder, or the smaller filter cloth in gap, screen or filter screen.
Further, sand leakage groove is annulus sand leakage groove, and aeration sand-washing device is cone；The outlet pipe of picotan
The tangential large cylinder for entering washing sand extraction device.
Further, the height of rotational flow grit chamber is lower than standard pool shape by 20%, and the water inlet pipe of rotational flow grit chamber water inlet end connects
Lifting water pump outlet pipe is connect, the depth of water of aqua storage tank can at least cover the grid cylinder filter area of grid cylinder 80%；The built on stilts peace of grid pond level
Mounted in rotational flow grit chamber end.
The beneficial effects of the utility model：Rotational flow grit chamber is directly installed on the reduction of reducing investment outlay of elevator pump outlet pipeline and accounted for
Ground.The overflow water outlet of setting pot upper end, Chi Rong all of；Settling pit is reduced on the premise of ensureing that treatment effect, ability do not drop
Total more than high 20%, be conducive to reducing the cost and cost of transportation of setting pot, save installing space, be integrally disposed upon rotational flow grit chamber
End grid pond so that 5000~10000 with the desanding of top day output, remove contamination and can be completed by a machine, significantly lowers investment
Installation period and occupation of land are built in expense, saving, need not increase soil in sewage plant dilatation, social benefit is notable；Sediment by rotational flow
Pond is arranged on before grid pond, and so first desanding, the mode removed contamination again can effectively exempt sand to grid filtration members, dynamic sealing
Face, the abrasion for supporting driving member, save grid operation and maintenance cost, reduction energy consumption, improve the grid life-span.The organic matter that shakes out contains
Amount is extremely low to can be used for construction material.Moisture content of slagging tap is low to lower garbage transporting expense.The discharge of slag sand branch is reduced at later separation
Reason expense.Grid cylinder depth immersion, filter area is big, flow velocity is low, slag thing insertion gate hole power is small, easy slag dumping cleaning.Big flow low pressure
Air cleaning is without flushing pressure source water water pumping pipe, and reduced investment, operation energy consumption are low；The water level regulation dress of balance-type type lever construction
Putting depth immersion inside and outside guarantee grid, unanimously, grid hydraulic pressure load is small, low cost.PLC control cabinet ensures that equipment is transported automatically for a long time
OK；Always enter water kinetic energy and be converted into potential energy, the horizontal built on stilts installation of grid pond ensures final outflow water position higher than water inlet tube hub, complete machine water
Power loss is small.
Below with reference to drawings and examples, the utility model is described in detail.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 A-A sectional views.
In figure：1st, rotational flow grit chamber, 2, cylinder tank, 3, large cylinder, 4, grit water separator, 5, water level control apparatus, 6,
Drive device, 7, grid cylinder, 8, grid pond, 9, flow apron, 10, overfall, 11, center sand hopper, 12, sand filtration tank, 13, water after filter
Groove, 14, every cinder hole plate, 15, aeration sand-washing device, 16, extension sand launder, 17, air blower, 18, filter screen, 19, water lift pipe,
20th, water lift tracheae, 21, center sand extraction tube, 22, sand leakage groove, 23, carry sand tracheae, 24, grid intake chamber, 25, grid effluent trough,
26th, baffle plate, 27, slag groove, 28, central shaft, 29, helical blade, 30, grid discharge bay, 31, division board, 32, grid overflow
Groove, 33, lifting weir plate, 34, floating body, 35, aqua storage tank, 36, residue outlet, 37, water receiving tank.
Embodiment, one kind as shown in Figure 1, 2 is removed contamination sand removing machine, including rotational flow grit chamber 1, and device is in rotational flow grit chamber 1
Grid pond 8 on setting pot end；The level of grid pond 8 is built on stilts to be arranged on the end of rotational flow grit chamber 1.The water inlet of rotational flow grit chamber 1
End middle part is tangentially-arranged water inlet pipe, and its middle and upper part sets flow apron 9, and the end of rotational flow grit chamber 1 is located at the upper of flow apron 9
The overfall 10 that side is set and the water inlet of grid pond 8 connects；The bottom of rotational flow grit chamber 1 is provided with center sand hopper 11, center sand hopper
11 outer rings are arranged with the extension sand launder 16 communicated therewith；Extend the upper and lower opening of sand launder 16, aperture connection center sand hopper 11.Center sand
The upper end of bucket 11 is provided with every cinder hole plate 14, has aeration sand-washing device 15 every the lower section device of cinder hole plate 14；The bottom of rotational flow grit chamber 1
The sand filtration tank 12 and water after filter groove 13 for being looped around extension sand launder 16 outer ring are additionally provided with, extension sand launder 16, sand filtration tank 12 are arranged on
The lower section that center sand hopper 11 comes down；Sand filtration tank 12 is arranged on the top of water after filter groove 13, is provided with upper and lower two layers of filter screen in it
18, sand filtration tank 12 is connected with water after filter groove 13 by the filter screen 18 of lower floor；Picotan is installed in water after filter groove 13, carried
Water installations include water lift pipe 19, and the upper end of water lift pipe 19 is stretched out in rotational flow grit chamber 1, lower end insertion water after filter groove 13, its outer wall
It is attached with water lift tracheae 20；The top of water lift pipe 19 is provided with the cylinder tank 2 of upper end open；Setting pot center fixture has washing
Sand extraction device, washing sand extraction device includes center sand extraction tube 21, sand leakage groove 22, the large cylinder 3 of upper end open；Large cylinder 3 enters
The delivery port of the mouth of a river and cylinder tank 2 connects；The upper end of center sand extraction tube 21 stretches out rotational flow grit chamber 1 and inserts great circle through sand leakage groove 22
Cylinder 3, the bottom of lower end insertion center sand hopper 11, its outer wall, which is attached with, carries sand tracheae 23；Sand leakage groove 22 be arranged on the bottom of large cylinder 3 and
Communicate therewith；The top of rotational flow grit chamber 1 is additionally provided with the grit water separator 4 connected with the bottom portion discharge tube of sand leakage groove 22；Sand water
The discharge outlet of separator 4 is connected with water after filter groove 13, and sand removing hole is connected with sand hopper is connect.Sand leakage groove 22 is annulus sand leakage groove
22, aeration sand-washing device 15 is cone；The outlet pipe of picotan tangentially enters the large cylinder 3 of washing sand extraction device.
Grid pond 8 is the rectangular cell body of a level, and built on stilts installation, one end open is weldingly connected logical with the epimere of rotational flow grit chamber 1.
It is provided with grid pond 8 and is divided into grid intake chamber 24 and the two-part baffle plate 26 of grid effluent trough 25, grid effluent trough
Grid cylinder 7 is provided with 25, grid cylinder 7 is provided with the air flushing device being adapted to it；Grid 7 water inlet end phases of cylinder are provided with baffle plate 26
The circular hole of adaptation, the water inlet end of grid cylinder 7 and water side are provided with for sealed intensive hairbrush；The inside of grid cylinder 7 is axially provided with
The slag groove 27 being adapted to it, the upper end of slag groove 27 is higher by grid 7 inner horizontals of cylinder；It is provided with slag groove 27 coaxial with grid cylinder 7
Central shaft 28, be provided with one group of helical blade 29 on central shaft 28；The top arrangement of grid pond 8 has for driving the He of central shaft 28
The drive device 6 that grid cylinder 7 is rotated；The discharge end of slag groove 27 is extend out to outside grid pond 8 from 7 water sides of grid cylinder；In grid pond 8
It is additionally provided with water level control apparatus 5.The filtration fraction of grid cylinder 7 is not less than φ 1 circular hole slab filter cylinder for a filtering bore dia, or
It is the smaller filter cloth in gap, screen or filter screen.Grid 7 one end inner inlet external supports of cylinder are on the sprocket wheel of suspension, center connection
Central shaft 28, other end inner circle is supported on ternary roller, and there is intensive hairbrush sealing at 7 two ends of grid cylinder of rotation, prevented
Only (water inlet end) slag thing is leaked to grid cylinder 7 outer (water side) in grid cylinder 7；The filter area of filter cylinder 80% passes through current, mistake simultaneously
Filtering surface product is big, flow velocity is low, slag thing extruding hole power is small, easy cleaning slag dumping, and filter cylinder rotates around horizontal middle spindle 28, is higher by the water surface
Portion falls into center slag groove 27 by the deadweight of slag thing and the outer low-pressure air slag dumping of cylinder.
Grid trench bottom sets grid discharge bay 30, and grid cylinder 7 is arranged on the top of grid discharge bay 30, is provided between the two
Division board 31；7 both sides of grid cylinder are each provided with the grid overflow launder 32 that a bottom is connected with grid discharge bay 30, grid overflow
Groove 32 is provided with the lifting weir plate 33 that bottom and division board 31 are adapted close to the side of grid cylinder 7；Division board 31, lifting weir plate
33rd, the inwall of grid pond 8, baffle plate 26 4 coordinate the aqua storage tank 35 that composition and grid cylinder 7 are adapted；It is provided with grid intake chamber 24
Floating body 34 for monitoring its interior water level, water level control apparatus 5 is balance-type type lever construction, and its one end suspension floating body 34 is another
Hold suspension lifting weir plate 33.The height of rotational flow grit chamber 1 is lower than standard pool shape by 20%, the water inlet pipe of the water inlet end of rotational flow grit chamber 1
Connection lifting water pump outlet pipe, the maximum moisture storage capacity depth of water of aqua storage tank 35 can at least cover the grid cylinder filter area of grid cylinder 80%.Lattice
Grid overflow launder 32 is welded on 7 both sides of grid cylinder, and aqua storage tank 35 ensure that grid cylinder 7 depth immersion.Lifting weir plate 33 is symmetrically distributed in
Each one group of 7 both sides of grid cylinder, are made up of, center upper end is drawn with water level control apparatus 5 stainless steel strip plate weld reinforcement, gib block etc.
Bar is hinged, and gap between two ends, which coordinate, to be arranged in guide groove.The lifting connection water-level control apparatus of weir plate 33 ensures have most inside and outside grid cylinder 7
Big immersed depth.So that grid filtration area is maximum, while reducing grid 7 hydraulic pressure load of cylinder, so as to reduce the 7 two ends rotation of grid cylinder
Bearing load, improves service life.
The one end of central shaft 28 is arranged on the body end plate of slag groove 27 by radial thrust bearing, along welding in helical blade 29
Outer is supported on bushing on central shaft 28.Bearing is big clearance adjusting center self-lubrication ceramic rolling bearing or MC nylon axles
Hold, the former energy consumption is lower, dust-proof and rubber seal is installed at bearing, prevent water from entering slag groove 27, even if there are a small amount of leakages can
Discharged by water receiving tank 37.Drive device 6 is the double Chain conveyer of soaking type, and double strand chain can reduce sprocket active force, soaking type chain
It is driven water lubrication reduction frictional heating.The synchronous driving grid cylinder 7 of drive device 6 and central shaft 28.
The bottom of slag groove 27 sets drainage orifice plate, and the outer wall of grid pond 8, which is located at below the end of slag groove 27, is provided with water receiving tank
37, the residue outlet 36 that the connection of the end of slag groove 27 is tilted upward, residue outlet 36 is connected with dreg-accepting hopper.
Grit water separator 4 is similar to waterpower slanted screen, and its top is provided with distribution channel, the bottom discharge pipe of annulus sand leakage groove 22
Road and distribution channel connect；It is provided with grit water separator 4 below slanted screen, slanted screen and water receiving chamber is set, slanted screen is provided with aperture and is less than
0.2 sand net, water receiving chamber is the water-accepting basin of an all round closure, and water-accepting basin lower discharging tube device for upper end has buoyancy open-type draining
Valve, slanted screen top is with cover, and water-accepting basin is provided with air inlet pipe, water-accepting basin drainpipe and connects lower resistance diaphragm type one-way valve and water after filter
Groove 13 is connected.
The bottom of center sand extraction tube 21 is provided with kuppe, and the top of large cylinder 3 is provided with the water inlet pipe phase with rotational flow grit chamber 1
The drainage pipeline connect；The bottom of water receiving tank 37 and water inlet pipe connect；The delivery port and the upper level filter of sand filtration tank 12 of grid discharge bay 30
The top UNICOM of screen cloth 18.Slag groove 27, helical blade 29, central shaft 28, MC nylon bush, drainage orifice plate, water receiving tank 37, go out
The grade of slag pipe 34 constitutes squeezer.
Originally sand removing machine of removing contamination also includes air blower 17, airflow pipeline component and PLC control cabinet；The slanted screen of grit water separator 4 is empty
Chamber, sand filtration tank 12 are located at the top of upper level filter screen cloth 18 and are provided with tracheal tube；Air blower 17 is by airflow management component with carrying
Water installations, washing sand extraction device, aeration sand-washing device 15, the slanted screen cavity of grit water separator 4, the upper level filter screen cloth 18 of sand filtration tank 12
Top, the pipeline connection of air flushing device；Airflow pipeline component by a plurality of tracheae, magnetic valve, regulating valve, check valve set into,
Check-valves is micro- resistance diaphragm type structure, and magnetic valve is outdoor type.Control cabinet and air blower 17, magnetic valve, the driving dress of grid cylinder 7
6 connections are put, control cabinet is the outdoor type field control case with PLC module.
Grid water outlet is filtered out relatively cleaning water after filter and is stored in lower section water after filter groove 13 by sand filtration tank 12, and filtering layer epicoele connects gas
Pipe, is periodically passed through big flow low-pressure air, and steam water interface, which floats, attracts filtering layer lower section clear water up, takes away and sticks to sand grains table
The suspension in face, realizes the backwash to sand filter blanket.
Water after filter groove 13 is the cavity of a storage water after filter.The picotan installed in groove is periodically by water after filter lifting to rotation
Stream setting pot 1 top top carries sand launder into washed-out sand is used for the cleaning of sand.
5 millimeters of circular holes of diameter are covered with by a circular stainless steel plate, reinforcement, steel plate periphery every cinder hole plate 14, center is boxed out
It is easy to 21 groups of sand extraction tube to pass through, orifice plate allows sand to pass through, and prevents from falling on sand collecting hopper under slag thing.
It is aerated sand-washing device 15 to be arranged on below cinder hole plate 14, is to connect conical cover structure under the small column box of top,
Center is welded with the sand extraction tube 21 walked, upper end welding air inlet pipe, and the cylindrical box bottom numerous small sircle holes of circumferential distribution will be periodically big
Flow air inlet uniformity is projected at a high speed downwards after being distributed along cone cover inwall, the air-flow edge cone cover outside area after the sand in washing away sand hopper
Blocked above the up backwash in domain every the pre- anti-slag thing of cinder hole plate 14.Slag thing aeration above orifice plate is rinsed, having on thing of removing the gred is gone
The slag thing that machine thing, drive are deposited on orifice plate is up with current discharge rotational flow grit chamber 1.
Extension sand launder 16 ensures that sand storage bin total measurement (volume) is not reduced in the case where center sand hopper 11 highly reduces, when center sand
Bucket 11 is filled with the extension sand launder 16 that sand unnecessary after sand enters surrounding by connected entrance sliding up and down, when carrying sand, works as center
The sand of sand hopper 11 is close to after having carried, and the sand of extension sand launder 16 is slid onto center sand hopper 11 along bottom ramp.Carry sand and aeration is washed
Sand air-flow prevention center sand hopper 11 and extension sand launder 16 are hardened, block, and sand is kept mobility.
Air blower 17 is displacement blower 17, and power 2.2KW, flow, pressure fully meet grid backwash requirement, because
Grid excessively stream speed is low, and numerous circular holes are not easily blocked, through overtesting：Even if there is a large amount of rubbish such as hair to press close to circular hole slab, due to
Bridging effect, influences little, except the slag thing such as non-adhesive soil, even if completely plugged 2/3 filter bores of grid to grid inflow-rate of water turbine
When, grid filtration head also only has 60mm, therefore the grid actual available machine time uses 1 with downtime:4 distribution are fully met just
Often work, i.e. grid working time 12 minutes per hour, are subdivided into more than 6 working cycles, i.e., each circulate to start shooting and stops for 2 minutes
Machine 8 minutes.And carry sand water lift and synchronously complete according to previous experiences and theoretical calculation, work per hour 6 minutes, segment two
Working cycles, i.e., shut down 27 minutes for 3 minutes per task.Backwashed plus aeration washed-out sand, grit water separator 4, filter sand backwash when
Between amount to the working time of air blower 17 per hour and be not more than 30 minutes.Therefore selected air blower 17 fully meets complete machine needed for
Air supply requirement.
It is band roller standard environment-friendly engineering plastic garbage bucket to connect sand hopper.
Dreg-accepting hopper is band roller standard environment-friendly engineering plastic garbage bucket.
The casing stainless steel of control cabinet, by be pre-designed or field adjustable setting programme-control air blower 17, electricity
Magnet valve, grid 7 motor automatic runnings of cylinder.
Lift pump discharge sewage and tangentially enter rotational flow grit chamber 1 with high flow velocities, current are initial with per minute about 20 circles
Rotary speed is rotated around circular pool wall, and rotating speed is gradually reduced during spiral, is finally justified from circular pond upper end half-turn
Segmental arc low speed overflow to big wedged bottom tank imports the import of grid pond 8.Enter water kinetic energy and be largely converted into potential energy.
The larger sand of eddy flow process density slides to being kept off every cinder hole plate 14 on center sand hopper 11, sand hopper along pool wall and slope
Firmly its recrement thing.
The air-flow back flush that periodically first purging sand grains then rises of aeration sand-washing device 15 is pre- anti-blocking every cinder hole plate 14
Plug, air-flow continues up flushing and stirs the larger slag thing of proportion above sand hopper cover plate, makes its up with water inlet eddy flow discharge eddy flow
Setting pot 1.
Sand hopper height reduces than standard pool shape, but adds outer ring annular (aperture connection in the middle part of upper and lower opening) extension sand launder
16, total sand hopper volume does not reduce.Unnecessary sand is entered by connected entrance sliding up and down after center sand hopper 11 is filled with sand
The extension sand launder 16 of surrounding, when carrying sand, when the sand of center sand hopper 11 is close to after having carried, under flow perturbation, extension sand launder 16
Sand is slid onto center sand hopper 11 along bottom ramp.Carry sand and aeration washed-out sand air-flow periodically washes away prevention center sand hopper 11 and extension
Sand launder 16 is hardened, block, and sand is kept mobility.
Extend the outer ring of sand launder 16 and sand filtration tank 12 and water after filter groove 13, self-produced washed-out sand clear water are set.Sand filtration tank 12 is clear with air-flow
The pre- anti-clogging of cleaning device.The clear water of lifting tangentially enters the large cylinder 3 of washing sand extraction device, while the sand water of lifting is from the cylinder
Downwards, sand passes through the clear water of eddy flow to the overflow of Fang Zhongxin tube edges, and soluble organic is taken away from sand washing tube outlet pipe by cyclone water and arranged
Go out to be guided near setting pot water inlet end, clean sand continues traveling downwardly the labyrinth ring by sand leakage groove 22 together with the clear water of cylinder bottom
Shape gap passage flows into the distribution channel of grit water separator 4.
Rear sand water is washed from the uniform overflow of 400mm width above the distribution channel of grit water separator 4 through arc sand net slide downward, it is real
Existing girt-water separation, sand enters sand hopper, and filter water is back to Rinsing Area through diaphragm check-valves.Instantaneous big flow low-pressure air is periodically anti-
Blast net, dredges mesh, blows away deposition fine sand.Balance lever formula structure automatic water level adjusting means 5, it is ensured that grid area of passage
Close to the 80% of its total filter area, reduced grid current speed to greatest extent, while setting downflow weir to ensure water-head inside and outside grid cylinder 7
Minimum, reduces grid 7 hydraulic pressure load of cylinder.Grid cylinder 7 uses diameter 1mm circular hole screen plates, because filter area is big, crosses that grid current speed is low to be difficult to block up
Plug ,+brush+gravity slag dumping is rinsed using low-pressure air.Grid cylinder 7 synchronous rotaries helical conveying squeezer by slag thing level, tiltedly
Squeezing is delivered up, moisture content of slagging tap is low.Squeezer filter water blooming piece check-valves is back to water inlet pipe.PLC field control casees
Programme-control air blower 17, magnetic valve, motor, automatic running realize desanding, aeration washed-out sand, orifice plate backwash, carry sand, carry
Water, washed-out sand, the backwash of sand net, sand filter blanket backwash, grid periodic operation flushing, girt-water separation, shake out, the squeezing of grid slag is slagged tap etc. all
Compared with the prior art, it is the characteristics of the utility model：
1) overturn traditional handicraft order, desanding to be arranged in before grid, it is to avoid sand abrasion grid；
2nd, lifting pump discharge kinetic energy realizes spiral-flow desilting, and kinetic energy slows down while being converted into potential energy flows into grid；
3rd, depth soaking type grid, filter area are big, cross that grid current speed is low, and the loss of flood peak is small before and after grid；
4th, movable downflow weir+hydraulic automatism regulation water level device ensures the outer depth immersion of grid cylinder 7, and grid cylinder 7 hydraulic pressure load is low；
5th, filter cylinder is cleaned using gravity+brush+low-pressure air slag dumping, energy consumption is low, without configuring pressure water source and pipeline；
6th, self-produced clear water washed-out sand, separate sand content of organics is extremely low；
7th, scene PLC is automatically controlled, and is realized self-produced low-pressure air, sand setting, aeration washery slag, washed-out sand, water lift, is carried sand, Sha Shui
Separation, filtering debris retaining scarfing cinder, pulp water expression separation.The flushing regeneration of girt-water separation filter screen, clear water sand filter blanket；
8th, desanding is clean, fine filtering scarfing cinder efficiency high, moisture content of slagging tap are low.Integration apparatus takes up an area small.
9th, a machine can complete 1~50,000 side's sewage settle at one go daily fine filtering scarfing cinder shake out, slag sand separation discharging.
The utility model is exemplarily described above in association with accompanying drawing.Obviously, the utility model is implemented not
Limited by aforesaid way.As long as employ the various unsubstantialities that method design of the present utility model and technical scheme are carried out
Improvement；Or it is not improved, above-mentioned design of the present utility model and technical scheme are directly applied into other occasions, at this
Within the protection domain of utility model.