CN1164433A

CN1164433A - Closed horizontal-flow type filter capable of automatically cleaning filtering layer and its filtering method

Info

Publication number: CN1164433A
Application number: CN 96104951
Authority: CN
Inventors: 张日养
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-02
Filing date: 1996-05-02
Publication date: 1997-11-12

Abstract

The present invention relates to a closed horizontal-flow type filter capable of removing suspended particles from fluid and automatically-cleaning filtering layer and its filtering method. It is characterized by that the closed cylindrical channel is filled with filtering material, so that when the fluid is passed through the filtering layer, the suspended particles mixed up with the fluid can be trapped on filtering material, and then the part of fluid to be filtered is fed into the channel with which the sand-sucking pipe and sand-discharging pipe are communicated, so that the filtering material in the cylindrical channel is squeezed into sand-sucking pipe by means of internal pressure, and then the water and sand mixed liquid after being excited into boosted state by pump flows into whirling sand-washing device along the sand-washing pipe so as to separate the suspended particles larger specific gravity from filtering material, so that the filtering operation cann't be blocked.

Description

Closed horizontal-flow type filter capable of automatically cleaning filtering layer and filter method thereof

The present invention relates to a kind of in fluid, the removal when suspended particulates and other material of not wanting, also can be simultaneously carry out the vortex washing and cleaning operation, make filter material keep unimpeded at any time and carry out closed horizontal-flow type filter capable of automatically cleaning filtering layer and the filter method thereof that continous way is filtered the filter material of suspended particulates in the interception fluid.

The filtration facility of removing suspended particulates in fluid is of long duration; the most normal occupation mode is to put in airtight steel cylinder not with the mobile filter material of filtered fluid; former water passes through filter material with pressuring method; treat that the filter material obstruction develops the original filter capacity of recovery with reverse flow flushing filtering layer with suspended particulates again; to be former water make the filtering traffic can be bigger with pressuring method by fixed filter bed to its advantage; its shortcoming is that filtering traffic is stretched with the edge of filtration time and decrescence; the filter material back washing need be shut down, and need possess the back washing tank.Recently at the shortcoming of fixed-bed type filter, have the city of asking of filter capable of automatically cleaning filtering layer, brand is the filter capable of automatically cleaning filtering layer of DYNA-SAND as shown in Figure 1, and the Taiwan patent announcement all belongs to this type of filter No. 195839, filter capable of automatically cleaning filtering layer as shown in Figure 1 is the single filter material 61 of installing in open cartridge filter 58, among filter material 61, interleave into main pipe 11, the center wears air lift pump 62 and air-lift tube 63 in the pipe of main pipe 11, air-lift tube 63 is connected with the washed-out sand device around extend the appropriate location that is lower than downflow weir 66 liquid levels to the upper edge by air lift pump 62, former water 10 feeds the upwards mobile filter material 61 that passes through of equal orchestration 59 from main pipe 11 when carrying out filtration operation, suspended particulates SS is retained on the filter material 61,41 of clear fluid are crossed downflow weir 66 and are disposed to the use point along pipeline 40, air lift pump 62 feeds compressed air in the lower tube of air-lift tube 63 in filtration operation is carried out, this compressed air mat buoyancy moves up, utilize bubble to rise after generation negative pressure in air-lift tube 63 bottoms sucks air-lift tubes 63 bottoms with the filter material outside the air-lift tube 63 61, follow rising bubble and flow into anti-splash tube 67, compressed air is got rid of in anti-splash tube 67, in anti-splash tube 67, compressed air is got rid of in anti-splash tube 67, liquid level in anti-splash tube 67 is low than downflow weir 66, clarified solution 41 around the dirty pipe 70 of collection upwards flows into anti-splash tube 67 and mixes with sand flow that air-lift tube 63 overflows along sand developing tube 64, the heavy speed of filter material 61 is because of falling into sand developing tube 64 soon then than the upflow velocity of clarified solution 41 in the sand developing tube 64, in sand developing tube 64, collide with resistance sand ring 65, the suspended particulates SS that is mingled with in the filter material 61 is disengaged and is entered liquid level control valve 68 with ascending current, flowing into blow-off pipe 30 along the overflow ring of being offered on the liquid level control valve 68 69 again emits, and the filter material 61 that down passes through sand developing tube 64 is gone through the washed-out sand process and is fallen into the filter bed top layer and carry out filtration operation again, filter material 61 slowly moves down in filter process, and it is opposite that its direction and former water 10 penetrate filter material 61 directions.

Commonly use the cartridge filter 58 of filter capable of automatically cleaning filtering layer as mentioned above and adopt style of opening, former water 10 passes through filter material 61 with the type of flow that makes progress, and upwards flows with air lift pump 62 guiding filter materials 61, and therefore following shortcoming is arranged:

One, the processing flow is little, filtering layer needs thicker: because former water 10 passes through filter material 61 with the type of flow that makes progress, and cartridge filter 58 is opening so the upflow velocity of former water 10 in filter bed must not be greater than the sinking speed of filter material 61, otherwise can cause filter material 61 with former water 10 outflow filter tubes 58, or float because of filtering layer is and suspended particulates SS to be escaped cause the clarified solution water quality deterioration in filter material 61, for fear of filter material 61 floating, therefore filtering layer needs thicker, the related volume of cartridge filter 58 that makes increases, and taking up room, it is more uneconomical to increase.

Two, filter material 61 cleaning efficiencies are unclear, air-lift tube 63 easily stops up: filter material 61 is only borrowed when penetrating sand developing tube 64 and is separated with attached suspended particulates SS thereon with the slight impact of resistance sand ring 65, because the sinking speed of filter material 61 is limited so still have a little glutinous slightly suspended particulates SS to attach on the filter material 61, prolonged filtration can make filter material 61 cohere granulating, since the pressure filter material 61 of filtering layer in bottom be compacted and bottom filter material 61 contained less fluids more sturdy, make that the flowability of bottom filter material 61 is not good, only according to feed the mobile formed limited negative pressure of compressed air rising in air-lift tube 63 bottoms, often can't make around the air-lift tube 63 the not good filter material 61 of flowability flow into air-lift tube 63 swimmingly and filter material 61 is mobile in the sand flow mode in air-lift tube 63 in, the big washed-out sand speed of its flow resistance is low, and filter bed will stop up gradually and reduces the filtration function if former water 10 contained suspended particulates SS raise then; And, make filter material 61 wash cycles efficient unclear because of the washed-out sand operation of sand developing tube 64 can't make the filter material 61 of the granulating that condenses separate; To condense agglomeratingly if shut down for a long time then cartridge filter 58 bottom filter materials 61, and be compacted, and make air-lift tube 63 stop up the washed-out sand operations and stop, and air-lift tube 63 make the less stable of its washed-out sand operation also very easily because of the foreign material in the former water 10 stop up.

Three, device fabrication is loaded down with trivial details, maintenance is difficult for, cost is higher: need the equal orchestration 59 of installing with one heart on the axis of cartridge filter 58, lead abrasive cone 60, main pipe 11, air-lift tube 63, air lift pump 62 and washed-out sand unit 67,68,69,70 make to make installs all comparatively difficulty, when air-lift tube 63 air lift pumps 62 and other element break down, maintenance activity will be difficult for.

Four, material 61 cleaning rates can't be adjusted cleaning rate automatically according to former water 10 pollution levels, make filtering traffic can't keep constant: air lift pump 62 feeds the compressed air formed negative pressure that rises in air-lift tube 63 bottoms be definite value, and its maximum can't be greater than an atmospheric pressure, its washed-out sand speed is Chang Su, filter material 61 obstruction speed will surmount washed-out sand speed gradually when the floating SS concentration of microactuator suspension in the former water 10 raises, filter material 61 is stopped up gradually, causing filtering crushing rising filtering traffic reduces, when can't being changed in the pollution level of former water 10, filtering traffic keeps constant, and raise because of pressing to edge up with the pollution level of former water 10 within the cartridge filter 58, make filter material 61 floating filter water quality deteriorations.

Five, filtering object, filter material kind are limited: because air lift pump 62 feeds the compressed air formed negative pressure that rises in air-lift tube 63 bottoms limited, therefore filling out filter material 61 proportions of putting in the cartridge filter 58 needs lower, filter material 61 kinds of its use are limited, and because of the cleaning strength of washed-out sand unit 67,68,69,70 limited, filter when contained suspended particulates SS is glutinous in the fluid when facing, then filter material 61 only can't definitely separate with suspended particulates SS with sinking speed, cause the object of filtration limited.

In view of commonly using filtration facility because above several disappearances make that the stability of filtering traffic and filtration is all relatively poor, the object of the present invention is to provide a kind of closed horizontal-flow type filter capable of automatically cleaning filtering layer, filter stability and filtering traffic to promote.

Technical scheme of the present invention is:

A kind of closed horizontal-flow type filter capable of automatically cleaning filtering layer, comprise press filtration tube, vortex sand-washing device, all pipe arrangement, washed-out sand pipeline, pressure-reducing valve, pump and main pipe contend with, it is characterized in that: former water is divided into two-way along main pipe and washed-out sand pipeline and flows, former water feeds press filtration tube central authorities along main pipe equal pipe arrangement is that the center penetrates around filter material and the radial liquid collecting ring that flows to around the equal pipe arrangement with stable horizontal flow and with equal pipe arrangement, follow finer again and be disposed to the use point, the suspended particulates that are mingled with in the former water and other desire are removed material and are held back by filter material; Boost mobile in the while of raw water filtration operation washed-out sand water along the washed-out sand pipeline, to be become quick condition to be sent to the vortex sand-washing device of press filtration tube top by the saturated filter material impulse that the press filtration tube is pressed into out sandpipe, filter material separates with the washed-out sand waste water that contains suspended particulates in vortex sand-washing device, the filter material that cleans up is fallen into the filter material top layer in the press filtration tube, washed-out sand waste water then flows out along blow-off pipe, press filtration tube bottom shakes out and guarantees adequate food and the filter material discharge during filtration operation, equal to fall into the clean filter material amount of press filtration tube, make filter material in the press filtration tube, keep certain thickness to move down the circulating filtration of accepting former water.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: wherein the press filtration tube is conical closed container, equidistantly be drilled with some spillway holes and cover in its abdomen, overlap a circular outer cover in tube abdomen outer peripheral edges that are drilled with spillway hole it is sealed into an airtight annulus with the filter ring-type; Open a gateway and seal this outlet in press filtration tube top side centre with vortex sand-washing device; Set out sandpipe in press filtration tube bottom vertex of a cone weldering, go out sandpipe and link to each other with the suction sand Road narrows of washed-out sand pipeline, vortex sand-washing device is then with the washed-out sand pipeline, be connected with main pipe; Main pipe links to each other in the upper limb insertion press filtration tube of tube abdomen and with the equal pipe arrangement that places the press filtration tube center of circle, uses forming an airtight filtration facility.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer is characterized in that: go out the interior saturated filter material of sandpipe and be that mat is inhaled the pressure differential of sand Road narrows and press filtration tube and deadweight thereof and to dirty.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer is characterized in that: the washed-out sand pipeline is established a pressure-reducing valve between sand suction pipe and suction sand Road narrows, use and adjust the pressure differential of inhaling sand Road narrows and press filtration tube.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: the washed-out sand pipeline is in sand developing tube and inhale and to establish the pump that contends with between the sand Road narrows, use to make within the sand developing tube and press, impel the interior fluid of washed-out sand pipeline to flow to vortex sand-washing device greater than pressing within the press filtration tube.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer is characterized in that: the washed-out sand pipeline is established a choke valve and is used the certainly rotary speed of water sand mixed liquor in vortex sand-washing device of controlling in the sand developing tube between suction sand Road narrows and pressure-reducing valve.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer is characterized in that: former water is to pass through in the horizontal flow mode of vertical press filtration tube axial line to be surrounded on equal pipe arrangement filter material all around, and filter material is in slowly moving down along axial line with the orthogonal direction of former water.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: vortex sand-washing device is to lead in the axial butt welding of leading coil to revolve Taper Pipe, establish the maintenance flange in the axle top weldering of leading coil again, an approximate Archimedian spiral line type water conservancy diversion vortex tube tangent with leading coil is established in weldering below the maintenance flange, uses that the water sand mixed liquor that becomes a mandarin can be rotated and unlikely generation sinuous flow around the center of circle in the concentric circles mode with fluid in the pipe when coil is led in feeding; Set a position flange in leading coil apart from a certain position weldering of axial bottom, locating flange seals press filtration tube end face by this; The vortex sand-washing device end face is with blind method door screen and maintenance flange combined closing, wear blow-off pipe in blind method door screen center, the fluid suction side of blow-off pipe is lower than the water conservancy diversion vortex tube, and using the water sand mixed liquor that makes the feeding of water conservancy diversion vortex tube can be rotated down around blow-off pipe, and washed-out sand waste water can be discharged along blow-off pipe.

Described sealing horizontal-flow type filter capable of automatically cleaning filtering layer is characterized in that: blow-off pipe is established the choke valve of the climbing speed of secondary washed-out sand water in the control press filtration tube with the discharge of control washed-out sand waste water.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer; it is characterized in that: all pipe arrangement is a pipe; be drilled with some spillway holes on its tube wall; the spillway hole surface then covers with the check sheet; use and make former water feed equal pipe arrangement to be become stabilized fluid to penetrate filter bed by uniform distribution; and mat check sheet when shutting down with the spillway hole locking, avoid filter material to flow out the press filtration tube.

Described closed horizontal-flow type filter capable of automatically cleaning filtering layer is characterized in that: vortex sand-washing device is to utilize around the eddy current that is rotated down of leading the coil rotation filter material is separated with suspended particulates and washed-out sand waste water.

A kind of filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: former water is when penetrating press filtration tube filter bed, the filter material washing and cleaning operation also carries out simultaneously, the wherein saturated filter material carried of washed-out sand pipeline and the mixed liquor of washed-out sand water, via the less outer filter material of the screening effect particle of sizing device be distributed in separating tube around, particle then is distributed in the sizing device than metafiltration material within big and separating tube separates in the space, and the filter material in the press filtration tube is distinguished into the two-layer raw water filtration of accepting with separating tube.

The filter method of described closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: the coil of leading of sizing device is drilled with some screenings hole on the tube wall below the locating flange, its pore size is used the outer filter material that makes in the eddy current that rotates and is penetrated the screening hole with centrifugal force and fall in the press filtration tube along the collar between internal layer filter material and outer filter material in leading coil.

The filter method of described closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: the axial line of sizing device, separating tube and the collar is to overlap, the sizing device is surrounded by collar ring-type below locating flange, the sizing device docks with separating tube and is linked to be tubular conduit, uses to separate internal layer filter material and the distribution of outer filter material in the press filtration tube.

The filter method of described closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: separating tube is a circle shape pipe, its tube wall is drilled with plurality of holes, its axial bottom side is an opening port, use and make former water that equal pipe arrangement flows out can follow this hole to enter outer filter material and filter, also make the internal layer filter material also can flow to out sandpipe simultaneously and carry out the filter material washing and cleaning operation from the separating tube bottom side openings.

A kind of filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: former water is when penetrating press filtration tube filter bed, the filter material washing and cleaning operation also carries out simultaneously, the wherein saturated filter material carried of washed-out sand pipeline and the mixed liquor of washed-out sand water, make filter material via vortex sand-washing device, rotate with the suspended particulates layering, gravitational settling effect via sedimentation pipe, the internal layer filter material that proportion and particle are all bigger in sedimentation pipe, fall into separating tube and be surrounded on equal pipe arrangement around, the water sand mixed liquor that flows out sedimentation pipe is then limited because of the upflow velocity at press filtration tube top, the periphery that the press filtration tube is distributed in separating tube is fallen in the outer filter material mat deadweight that proportion is lower, makes the filter material in the press filtration tube, by its granular size decker.

The filter method of described closed horizontal-flow type filter capable of automatically cleaning filtering layer is characterized in that: vortex sand-washing device, reversing tube, conduit, sedimentation pipe, separating tube are concentric arrangement; The vortex sand-washing device top side is sealed with blind flange, the leading of bottom side revolved Taper Pipe and is connected with the conduit that inserts sedimentation pipe, the outlet of conduit is surrounded with the reversing tube ring-type, axial bottom surface is sealed then for open in the axial bottom surface of reversing tube, reversing tube then surrounds for the sedimentation pipe ring-type, the axial bottom side of sedimentation pipe links to each other with separating tube and forms tubular space, and the axle top of sedimentation pipe then is an opening port.

The present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer has following advantage and effect in sum:

One, the filter material cleaning rate is adjusted automatically with former water pollution degree, filtering traffic keeps constant: the present invention's filter material 3 mat press filtration tubes 1 are clamp-oned with the pressure differential of inhaling sand Road narrows 19 and are inhaled in the sand Road narrows 19, therefore when the pollution level of former water 10 raises, filter material 3 blocks the speed rising makes voltage rise height within the press filtration tube 1, be set at definite value and inhale to press within the sand Road narrows 19 through pressure-reducing valve 17, therefore both differential pressures are increased thereupon, filter material 3 is clamp-oned the speed of inhaling sand Road narrows 19 and is speeded, so that the cleaning rate of filter material 3 is accelerated, then the pollution level according to former water 10 changes, filter material 3 cleaning rates can change thereupon and remain in certain certain value, make filtering traffic can keep constant.

Two, the filter material washing and cleaning operation is rapid, it is stable: because filter material 3 mat pressure measuring cylinders 1 flow downward with the pressure differential and the deadweight thereof of inhaling sand Road narrows 19, its difference can not stopped up greater than an atmospheric pressure, and but filter material 3 cleaning rate mat pressure-reducing valves 17 are adjusted, make filter material 3 washing and cleaning operations stablize filter bed and kept at any time totally, former water 10 filtration operation are stablized carries out.

Three, filter material is comparatively clean: because vortex sand-washing device 24 is that the centrifugal force that mat rotating vortex 28 is produced makes filter material 3 separate with the suspended particulates SS of different specific weight, simultaneously mat filter material 3 when vortex sand-washing device 24 inside vortex moves to each other relative friction and filter material 3 separation that will tie, therefore it is comparatively clean to clean back filter material 3, and to be not mat filter material 3 sinking speed make filter material 3 separate with suspended particulates SS greater than the principle of washed-out sand up-flow speed waterborne to vortex sand-washing device 24, its centrifugal force that is mat rotating vortex 28 is produced pastes the tube wall rotation, treat down to rotate when arriving the downward speed of pressure balance and equalling zero, separate with the eddy current 28 that upwards flows toward die, the mat deadweight separates with suspended particulates SS toward backspin again, therefore not only vortex sand-washing device 24 is less, and cleaning rate can be higher.

Four, press filtration tube 1 volume is little, safeguard simple and easy and to handle flow big: but press filtration tube 1 be closed therefore former water 10 pressure filtrations therefore to handle flow by filter bed big, and filter material 3 no buoyancy flows go out phenomenon, therefore thickness of filter bed can be thinner, the volume of press filtration tube 1 is greatly reduced, and main executive component all place tube outer therefore easy to repair.

Five, it is wider to fill out filter material 3 kinds of putting in the press filtration tube 1, the object of filtration is wider: because filter material 3 mat pressure measuring cylinders 1 flow downward with the pressure differential and the deadweight thereof of inhaling sand Road narrows 19, its difference can not stopped up greater than an atmospheric pressure, therefore the filter material 3 of use can be considered its proportion, and therefore the scope of selection filtration fluid is wider really because of filter material 3 washing and cleaning operations.

For more understanding the purpose of this creation, principle is after effect flow process and architectural feature thereof and cooperation are illustrated in.

The diagram simple declaration

Fig. 1: be the schematic diagram of commonly using filter capable of automatically cleaning filtering layer.

Fig. 2: the structural principle schematic diagram that is the present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer.

Fig. 3: the sectional axonometric drawing that closes horizontal-flow type filter capable of automatically cleaning filtering layer that is the present invention.

Fig. 4: the equal pipe arrangement three-dimensional exploded view that is the present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer.

Fig. 5: the equal pipe arrangement three-dimensional combination figure that is the present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer.

Fig. 6: the vortex sand-washing device front view that is the present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer.

Fig. 7: the schematic diagram that is 1-1 hatching among Fig. 6.

Fig. 8: the vortex sand-washing device three-dimensional exploded view that is the present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer.

Fig. 9: the vortex sand-washing device three-dimensional combination figure that is the present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer.

Figure 10: the sizing device front view that is first embodiment of the present invention.

Figure 11: the press filtration tube and the outer cover exploded view that are the present invention's closed horizontal-flow type filter capable of automatically cleaning filtering layer.

Figure 12: be schematic diagram according to the closed horizontal-flow type filter capable of automatically cleaning filtering layer of the two granularity filter materials of tool of first embodiment of the present invention.

Figure 13: be schematic diagram according to the closed horizontal-flow type filter capable of automatically cleaning filtering layer of the two character filter materials of tool of second embodiment of the present invention.

As Fig. 2, it is by press filtration tube 1, filter material 3, vortex sand-washing device 24, equal pipe arrangement 12, washed-out

sand pipeline

16,19,22, pressure-reducing valve 17 for the present invention shown in Figure 3, the pump 20 that contends with, and main pipe 11 is formed.In airtight press filtration tube 1, load filter material 3, making suspended particulates SS that fluid is mingled with in by filter bed time the and other material of not wanting be retained in makes the fluid that passes through filter material 3 become the quality of being wanted on the filter material 3, flow into sand suction pipe 16 in the while of filtration operation part former water 10 to be filtered and go out the path that sandpipe 21 links to each other with press filtration tube 1 bottom, be pressed in filter material 3 nationalitys in the press filtration tube 1 and inhale in the sand Road narrows 19, soon become quick condition with the pump 20 that contends with this water sand mixed liquor 23 to be boosted again by washed-out sand water 15 impulses, flow into the vortex sand-washing device 24 of press filtration tube 1 top again along sand developing tube 22, in vortex sand-washing device 24 to stablize flow velocity along the downward vortex of axial line, paste the tube wall rotation than great filter material 3 because of centrifugal action, suspended particulates SS then rotates in washed-out sand waste water 33 and separates with filter material 3, this be rotated down current in the backspin process because of the rotation energy loss and vortex sand-washing device 24 within the footpath convergent make flow resistance cumulative, reach pressure balance when being threaded to certain depth, this rotary water current produces upwards vortex water flow discharge to the blow-off pipe 30 that belongs to low-pressure side, the filter material 3 that pastes tube wall rotation then nationality deadweight is whirlpooled down downwards into interior filter material 3 top layers of press filtration tube 1, and the suspended particulates SS that so filters former water 10 and removing obstruction filter material 3 in filtration operation is carried out in can make filtration operation can carry out continuously and can not stop up simultaneously.Press filtration tube 1 is that its outward appearance of a closed container is a sharp cone distal under the last cylinder, ring-type equidistantly is drilled with treatment hole 43 on tube abdomen 42, as shown in figure 11, tube abdomen 42 inboard peripheries cover with filter 7 ring-types again and with poroid compressing web plate 8 filter 7 compressings are fixed on the abdomen 42, the press filtration tube 1 inner filter material 3 of filling, blocking of mat filter 7 makes filter material 3 can not flow into liquid collecting ring 6 with filtrate 35, tube abdomen 42 peripheries of press filtration tube 1 are with outer cover 5 annular enclosed formation liquid collecting rings 6, liquid collecting ring 6 is collected the clarified solution 41 that penetrates filtering layer by this, the bottom pointed cone top of press filtration tube 1 is established one and is gone out sandpipe 21 and be connected with suction sand Road narrows 19, make saturated filter material 2 enter sand suction pipe 16 along this passage, the end face central authorities of press filtration tube 1 set out inlet, vortex sand-washing device 24 is set up on this gateway with locating flange 9 combinations with one another, press filtration tube 1 is established an equal pipe arrangement 12 on the home position of relative tube abdomen 42, all pipe arrangement 12 is again with 4 main pipes 11 that penetrate press filtration tube 1 are connected from the decanting zone, former water 10 follows this pipeline and feeds

press filtration tube

1,5 on cover is established the clarified solution 41 that a finer 40 will filter the back and is disposed to the use point outside the press filtration tube 1, and press filtration tube 1 like this will be become obturator.

Vortex sand-washing device 24 lies in the axle top weldering of leading coil 29 of circle as shown in Figure 6 and establishes maintenance flange 26, establish water conservancy diversion vortex tube 25 in the 26 following appropriate location welderings of maintenance flange, this water conservancy diversion vortex tube 25 is an asymptotic spiral of Archimedes, its with lead coil 29 tangent so that water sand mixed liquor 23 feedings of feedings lead can form rotary water current when the coil 29 and with lead coil 29 inner fluids and rotate around axial line in the concentric circles mode, make its unlikely generation sinuous flow phenomenon; Set a position flange 9 in leading coil 29 apart from a certain position weldering of axial bottom, mat locating flange 9 can make vortex sand-washing device 24 that press filtration tube 1 end face is sealed, vortex sand-washing device 24 end faces are then with blind method door screen 39 and maintenance flange 26 combined closings, wear blow-off pipe 30 in blind method door screen 39 centers, refill on the blow-off pipe 30 and establish choke valve 32, using the water sand mixed liquor 23 that makes 25 feedings of water conservancy diversion vortex tube can be rotated down around blow-off pipe 30, finishes and cleans filter material 3 operations, and washed-out sand waste water 33 is discharged along blow-off pipe 30 again.Washed-out

sand pipeline

16,19, the branch of 22 owner's mains 11, it joins with sand suction pipe 16 and main pipe 11, link to each other with the water conservancy diversion vortex tube 25 of vortex sand-washing device 24 with sand developing tube 22, to inhale sand Road narrows 19 and to go out sandpipe 21 and link to each other, and on sand developing tube 22 the installing pump 20 that contends with, installing pressure-reducing valve 17 and washed-out sand water choke valve 18 on sand suction pipe 16, so main pipe 11 and vortex sand-washing device 24 are with mat

sand developing tube

16,19,22 are linked to be path, the supercharging that washed-out sand water 15 hydraulic pressure that come through main pipe 11 shuntings when it is operated and pump 20 runnings that contend with provide will make washed-out

sand pipeline

16,19, fluid in 22 carries out the washed-out sand operation to flow into vortex sand-washing device 24 than vortex sand-washing device 24 inner higher pressure.

As Fig. 2, Fig. 4, equal pipe arrangement 12 shown in Figure 5 lies on the tube wall of pipe and is drilled with some spillway holes 14, but check sheet 13 in the surface coverage elastic stretch of spillway hole 14, this check sheet 13 is an elasticity, it cooperates plate with screw hole 38 on equal pipe arrangements 12 with screw 37 and check sheet 13 is fixed on the equal pipe arrangement 12, all the axle head bottom side of pipe arrangement 12 is sealed, the axle head end face cooperates with main pipe 11, so will make equal pipe arrangement 12 isolated with filter material 3, former water 10 feeds equal pipe arrangement 12 along main pipe 11 when carrying out filtration operation, it is that fulcrum is removed from spillway hole 38 surfaces with screw 39 then that equal pipe arrangement 12 moment supercharging check sheet 13 bears this hydraulic pressure, former water 10 then penetrates filter material 3 along spillway hole 38 in the current stabilization mode, when stopping filtration operation the check sheet bear filter material 3 pressure be forced to the retraction be pressed in spout hole 14 surfaces, make filter material 3 can not enter equal pipe arrangement 12.

Filter material 3 in the press filtration tube 1 will be equivalent to pump and carry ball valve in the pipeline of fluid as shown in Figure 2, when the filter material gap is taken gradually by suspended particulates SS, the aperture area that will be equivalent to ball valve changes little, so will cause ball valve source end pipeline fluid pressure to rise, in like manner can push away, when former water 10 when main pipe 11 feeds press filtration tubes 1, because being equivalent to the pipeline flow section, the obstruction of filter material 3 dwindles, to make the pressure of press filtration tube 1 and main pipe 11 rise, and main pipe 11, vortex sand-washing device 24, the sand suction pipe 16 that reaches 11 of pressure-reducing valve 17 and main pipes will be isopiestic state, if contend with this moment pump 20 start turn round then the pipeline of

sand suction pipe

16 and 20 of the pumps of contending with step-down, then make the direction of flow that boosts in 11 pipelines of pressure-reducing valve 17 and the main pipe pump 20 that contends with, pump 20 is polyphones with sand suction pipe 16 owing to contend with, to make contend with pump 20 water side pressure become press in the sand suction pipe 16 of decompression back and vortex sand-washing device 24 within the pressure sum, so will make washed-out

sand pipeline

16,19, fluid in 22 flows to vortex sand-washing device 24, and go out sandpipe 21 interior saturated filter materials 2 because press within the press filtration tube 1 far beyond pressure-reducing valve 17 decompression backs inhale interior the pressure height of sand Road narrows 19, will be squeezed into suction sand Road narrows 19 and soon be become after the quick condition quilt pump 20 superchargings that contended with to transport to vortex sand-washing device 24 by washed-out sand water 15 impulses; When the water sand mixed liquor 23 in the sand developing tube 22 flows into vortex sand-washing device 24 along water conservancy diversion vortex tube 25, will be tangent with the fluid of leading in the coil 29 of asymptotic whirling streamline and vortex sand-washing device 24 because of the guiding of water conservancy diversion vortex tube 25, and be rotated down around blow-off pipe 30 in the concentric circles mode, filter material 3 is led wall within the coil 29 because the higher centrifugal force through the rotation generation of proportion will be forced to flow to, because leading coil 29 and be transfixion will make and have relative friction to exist between filter material 3 and tube wall, related making also produces friction relatively between filter material 3 particles, CONTACT WITH FRICTION makes the suspended particulates SS of 3 of filter materials be struck off release fully relatively by this, this eddy current 28 makes flow resistance cumulative because of footpath convergent within rotating energy loss and the vortex sand-washing device 24 in the backspin process, after being threaded to certain depth with press filtration tube 1 within pressure reach balance, downward flow velocity in this equilbrium position fluid equals zero, eddy current 28 can't continue down to rotate, satisfy to blow-off pipe 30 generations that belong to low-pressure side and rotate up the current discharge, this rotate up current be in former be rotated down the inner concentric of eddy current 28 and in the same way the rotation, and paste that tube wall rotation filter material 3 continues still when bumpy flow 28 down arrives the position that downward flow velocity equals zero that rotation is affixed on the tube wall and can be with turning to last eddy current along blow-off pipe 30 discharges, the filter material 3 that pastes tube wall rotation is satisfied the mat deadweight and is whirlpooled down in the press filtration tube 1 the secondary washed-out sand water 31 washing discharges that remaining suspended particulates SS is flowed toward blow-off pipe 30 again in dropping process downwards; When former water 10 suspended particulates SS concentration change, the related obstruction speed of filter bed that makes is changed, also make simultaneously changing of Hair Fixer within the press filtration tube 1, going out interior saturated filter material 2 flows of sandpipe 21 this moment also changes automatically cleaning filter material 3 speed is changed automatically, so can adjust the rate of washing of saturated filter material 2 automatically, and make filtering traffic can keep constant according to the concentration of pollutant in the former water 10.

Former water 10 is divided into two-way along main pipe 11 and sand suction pipe 16 and flows when carrying out filtration operation as shown in Figure 2.Former water 10 forms stable horizontal flow along the equal pipe arrangement 12 that main pipe 11 feeds press filtration tubes 1 central authorities, and be that the center penetrates around the equal pipe arrangement 12 radial again liquid collecting ring 6 that flows to of filter material 3 all around with equal pipe arrangement 12, is disposed to the use point along finer 40 immediately; Washed-out sand water 33 is then from sand suction pipe 16 drainages that link to each other with main pipe 11, when it passes through to inhale sand Road narrows 19, flow into vortex sand-washing devices 24 toward following sand developing tube 22 the saturated filter material 2 that contains a large amount of suspended particulates SS that moves down is become pump 20 superchargings that contended with after the quick condition by impulse after, after in vortex sand-washing device 24, finishing filter material 3 and suspended particulates SS detached job, washed-out sand waste water 33 is discharged along blow-off pipe 30,3 of filter materials are fallen in the press filtration tube 1, and it is orthogonal with the moving direction of filter material 3 to carry out Central Plains water 10 in filtration operation, wherein filter material 3 is slowly to move down, former water 10 then level flows fast, it is mingled with that suspended particulates SS concentration is the highest to become saturated filter material 2 when being displaced downwardly to press filtration tube 1 bottom pointed cone when filter material 3, becomes clarified solution 41 when former water 10 penetrates filter material 3.Adjust the pressure-reducing valve 17 controlled speed of shaking out of neutralizing the pressure differential of filter cylinder 1 and suction sand Road narrows 19 and then controlling out sandpipe 21 in the filtration operation is carried out, saturated filter material 2 flows that then go out sandpipe 21 when pressure differential increases increase, and vice versa; In carrying out, the filtration operation adjusts 32 controlled secondary washed-out sand water 31 climbing speeds of neutralizing in the filter cylinder 1 of choke valve, if choke valve 32 aperture areas strengthen, then secondary washed-out sand water 31 upflow velocities speed, vice versa, as long as can control the cleaning rate of remaining suspended particulates SS through the aperture area of control choke valve 32; Nationality the flow that the aperture area of adjusting choke valve 18 can be adjusted water sand mixed liquor 23 in the sand developing tube 22 simultaneously, and then the autorotation speed of control rotating vortex 28, thereby influences the relative friction velocity of 3 of filter materials and the cleaning efficiency of filter material 3; When running one section the time in the future since the abrasion of 3 of filter materials need be coated with coating rubbing-layer again in vortex sand-washing device 24 inside.

The present invention's its cleaning filter material 3 steps in operation can be divided into continous way and batch as shown in Figure 2.The former water 10 of main pipe 11 feedings filters when 3 operations of continuous wash filter material, and the pump 20 that contends with also starts cleaning filter material 3 simultaneously, and these two programs are carried out simultaneously; Batch filter material 3 cleaning ways are that former water 10 is treated after a period of time after filtration to press in the press filtration tube 1 and reached the setting value side startup pump 20 that contends with and carry out filter material 3 washing and cleaning operations, force down to the press filtration tube 1 in setting value and then stop filter material 3 washing and cleaning operations, and during filter material 3 cleans, still carry out former water 10 filtration operation.

Utilize above-mentioned vortex sand-washing device 24 to clean filter material 3 principles, vortex sand-washing device 24 can be given appropriate change, and can in press filtration tube 1, fill out the filter material of putting two kinds of heterogeneitys or different grain size, and can clean with layering these two kinds of filter materials and put.When former water carries out filtration operation by filter bed, because suspended particulates SS varies in the former water, if adopt single granularity filter material, then in carrying out, the actual filtration operation can't be held back gradually by filter bed according to granular size because of suspended particulates SS, therefore all types of suspended particulates SS all are retained in the filter material top layer, the loss of flood peak that causes filter material obstruction speed to speed and filter is bigger, commonly use filter capable of automatically cleaning filtering layer and then only adopt simple grain degree filter material to stop up speed, therefore the configuration of vortex sand-washing device 24 is given appropriate change to improve filtering efficiency at this shortcoming.

Be the closed horizontal-flow type filter capable of automatically cleaning filtering layer that to load 2 kinds of different grain size filter materials as shown in figure 12, in the particle of internal layer filter material 49 wherein greater than outer filter material 50, and internal layer filter material 49 is identical with the character of outer filter material 50, when making, the filtering object of press filtration tube 1 only can allow single filter material in the tube and must be divided into two-layerly when improving filter efficiency that it is two-layer then must to use this kind size sieves point-score that

filter material

49,50 is divided in press filtration tube 1 by the filter material granular size.Its separation principle as shown in figure 12 at first water sand mixed liquor 23 feed sizing devices 47 along sand developing tube 22, guide functions through the water conservancy diversion vortex tube 25 on the sizing device 47 makes this water sand mixed liquor 23 around blow-off pipe 30 rotations, because the axle head water inlet of blow-off pipe 30 is low and be low-pressure side than water conservancy diversion vortex tube 25, this water sand mixed liquor 23 is rotated down then and along blow-off pipe 30 washed-out sand waste water 33 is discharged; Sizing device 47 self-align flanges revolve Taper Pipe 27 surface and bore completely the screening hole 46 littler than internal layer filter material 49 greatly than outer filter material 50 in leading coil 29 and leading below 9, filter material 49 in sizing device 47 in following rotating fluid, 50 are subjected to centrifugal action to get rid of wall within sizing device 47, because of sieving hole 46, the particle of outer filter material 49 enters the collar 44 for the little sizing device 47 that penetrates then, there is the washed-out sand waste water 33 of part also to enter the collar 44 thereupon, because sizing device 47 continues pushing of centrifugal force, outer filter material 50 and washed-out sand waste water 33 are satisfied toward current downflow, when it falls into press filtration tube 1, because fluid all flows to the blow-off pipe 30 that belongs to low-pressure side, washed-out sand waste water 33 is satisfied and is revolved screening hole 46 on the Taper Pipe 27 from leading of sizing device 47 and up flow into blow-off pipe 30 in the sizing device 47, internal layer filter material 49 then mat deadweight is fallen in the separating tube 48, make internal layer filter material 49 and outer metafiltration 50 separating of separating tube 48 and separating by this, and internal layer filter material 49 and outer filter material 50 begin in separating tube 48 following appropriate locations to mix, at last along with the saturated filter material 2 that goes out sandpipe 21 constantly outflows,

whole filter material

49,50 constantly move down then, filter material 49 in the press filtration tube 1 like this, 50 then can be by the granular size hierarchal arrangement, make the suspended particulates SS in the former water 10 can be successively by

filter material

49,50 hold back, and can improve the filtering traffic of former water 10.

As Figure 10, sizing device 47 shown in Figure 12 is to establish maintenance flange 26 in leading on coil 29 axle heads face down bonding, goes up face down bonding locating flange 9 among leading coil 29, establishes and lead the tangent water conservancy diversion vortex tube 25 of coil 29 in 9,26 welderings of this two flange; Put blow-off pipe 30 in the center of circle of leading coil 29, the axial bottom inlet of blow-off pipe 30 is low than water conservancy diversion vortex tube 25, the axial top weldering of blow-off pipe 30 is established with keeping in repair the blind flange 51 that flange 26 cooperates and is assembled choke valve 32 more thereon, makes the washed-out sand waste water 33 of sizing device 47 follow this passage discharge by blow-off pipe 30; Sizing device 47 is drilled with some screenings hole 46 on the tube wall of locating flange below 9, its aperture is littler than internal layer filter material 49 greatly than outer filter material 50, sizing device 47 is sealed by the collar 44 below 9 in locating flange, surrounded by the collar 44 ring-types by metafiltration material 49 outside the screening hole 46, force outer filter material 49 to fall into around the separating tube 48 of press filtration tube 1, the leading of sizing device 47 revolves Taper Pipe 27 axle heads and separating tube 48 joins, separating tube 48 is pipes, bore the full hole littler on its tube wall than internal layer filter material 49, use internal layer filter material 49 and outer filter material 50 are separated, and the axle head bottom side of distributing pipe 48 is not sealed, make internal layer filter material 49 when down shifting out separating tube 48 can be surrounded on around it outside metafiltration material 50 mix, again together to going out the sandpipe 21 mobile filter material washing and cleaning operations that carry out, and the axial length of separating tube 48 is suitable with outer cover 5, and with equal pipe arrangement 12 whole surrounding, use and make former water 10 can evenly penetrate this double-

deck filter material

49,50, and the disappearance can exempt from only to carry out filtration operation with single granularity filter material the time.

Be the closed horizontal-flow type filter capable of automatically cleaning filtering layer that to load two kinds of tool heterogeneity filter materials as shown in figure 13, this kind of filter is put proportion and all bigger filter material 56 of particle in separating tube 54, then be less filter material 57 for proportion, particle outside the separating tube 54.Its separation principle is worked as water sand mixed liquor 23 as shown in figure 13 and is rotated in overwinding sand-washing device 24, revolving Taper Pipe 27 owing to leading of vortex sand-washing device 24 is low-pressure sides, then produce guide and revolve the downward eddy current 28 that Taper Pipe 27 flows, this eddy current 28 in rotary course through

filter material

56,57 reach to each other with tube wall between relative friction, the centrifugal force that suspended particulates SS is released mat rotation generation again makes

filter material

56,57 with suspended particulates SS layering rotation in downward eddy current 28, flow into the home position of the top sedimentation pipe 55 of separating tube 54 via this eddy current 28 of guiding of conduit 52, via the annulus that flows into 52 in sedimentation pipe 55 and conduit on downward eddy current 28 counter steers of stopping of reversing tube 53, internal layer filter material 56 began sedimentation then and fell into separating tube 54 and be surrounded on around the equal pipe arrangement 12 because proportion is higher this moment, after flowing out sedimentation pipe 55, eddy current 28 successively decreases because of space open upflow velocity of moment, make outer filter material 57 also sedimentation fall into press filtration tube 1 and be surrounded on around the separating tube 54, the near suspended particulates SS of proportion and water then discharges with washed-out sand waste water 33, so make internal layer filter material 56 and outer filter material 57 can be in press filtration tube 1 hierarchal arrangement; Internal layer filter material 56 mixes with outer filter material 57 in flowing out to press within the separating tube 54 back mat press filtration tubes 1, along with the saturated filter material 2 that goes out sandpipe 21 constantly constantly moves down toward current downflow press filtration tube 1 interior

whole filter material

56,57, make

filter material

56,57 can constantly carry out washing and cleaning operation, via

filter material

56,57 hierarchal arrangement in press filtration tube 1, make that suspended particulates SS can be held back by

filter material

56,57 in regular turn according to granular size when carrying out former water 10 filtration operation, and can not be jammed in the top layer of filter material, and can improve the filtering traffic of former water 10.

The top of vortex sand-washing device 24 is with blind flange 51 sealings as shown in figure 13, the leading of vortex sand-washing device 24 revolved Taper Pipe 27 vertex of a cones and is connected in the sedimentation pipe 55 that inserts separating tube 54 tops again with conduit 52, conduit 52 ports of export stop with reversing tube 53, the caliber of reversing tube 53 is bigger than conduit 52, and reversing tube 53 extends upward and is surrounded on around the conduit 52, the annular space of mat itself and sedimentation pipe 55 formation makes internal layer filter material 56 be able to sedimentation, sedimentation pipe 55 is connected to form the annular space of tubulose toward next and separating tube 54, separating tube 54 tube walls are collected together full hole, its diameter is littler than internal layer filter material 56, use that internal layer filter material 56 is separated with outer filter material 57, guide former water 10 simultaneously and follow this hole bottom horizontal flow sheet and pass through filter material.

Claims

1, a kind of closed horizontal-flow type filter capable of automatically cleaning filtering layer, comprise press filtration tube (1), vortex sand-washing device (24), equal pipe arrangement (12), washed-out sand pipeline (16,19,22), pressure-reducing valve (17), pump (20) and main pipe (11) contend with, it is characterized in that: former water (10) is along main pipe (11) and washed-out sand pipeline (16,19,22) being divided into two-way flows, former water (10) feeds press filtration tube (1) central authorities along main pipe (11) equal pipe arrangement (12) is that the center penetrates around equal pipe arrangement (12) filter material (3) all around and the radial liquid collecting ring (6) that flows to stable horizontal flow and with equal pipe arrangement (12), follow finer (4) again and be disposed to the use point, the suspended particulates (SS) that are mingled with in the former water (10) and other desire are removed material and are held back by filter material (3); The while washed-out sand water (15) of Yu Yuanshui (10) filtration operation is along washed-out sand pipeline (16), (19), (22) boost mobile, to be become quick condition to be sent to the vortex sand-washing device (24) of press filtration tube (1) top by saturated filter material (2) impulse that press filtration tube (1) is pressed into out sandpipe (21), filter material (3) separates with the washed-out sand waste water (33) that contains suspended particulates (SS) in vortex sand-washing device (24), the filter material that cleans up (3) is fallen into filter material (3) top layer in the press filtration tube (1), washed-out sand waste water (33) then flows out along blow-off pipe (30), press filtration tube (1) bottom goes out the saturated filter material of sandpipe (21) (2) discharge during filtration operation, equal to fall into clean filter material (3) amount of press filtration tube (1), make filter material (3) in press filtration tube (1), keep certain thickness to move down the circulating filtration of accepting former water (1).

2, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 1, it is characterized in that: wherein press filtration tube (1) is conical closed container, equidistantly be drilled with some spillway holes (43) and cover in its abdomen (42), overlap a circular outer cover (5) in tube abdomen (42) outer peripheral edges that are drilled with spillway hole (43) it is sealed into an airtight annulus with filter (7) ring-type; Open a gateway and seal this outlet in press filtration tube (1) top side centre with vortex sand-washing device (24); Vertex of a cone weldering sets out sandpipe (21) in press filtration tube (1) bottom, go out sandpipe (21) and link to each other with the suction sand Road narrows (19) of washed-out sand pipeline (16), (19), (22), vortex sand-washing device (24) then is connected with main pipe (11) with washed-out sand pipeline (16), (19), (22); Main pipe (11) links to each other in the upper limb insertion press filtration tube (1) of tube abdomen (42) and with the equal pipe arrangement (12) that places press filtration tube (1) center of circle, uses to form an airtight filtration facility.

3, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 2 is characterized in that: go out the interior saturated filter material (2) of sandpipe (21) and be that mat is inhaled the pressure differential of sand Road narrows (19) and press filtration tube (1) and deadweight thereof and to dirty.

4, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 2, it is characterized in that: a pressure-reducing valve (17) is established in washed-out sand pipeline (16), (19), (22) between sand suction pipe (16) and suction sand Road narrows (19), use and adjust the pressure differential of inhaling sand Road narrows (19) and press filtration tube (1).

5, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 2, it is characterized in that: washed-out sand pipeline (16), (19), (22) are in sand developing tube (22) and inhale and establish the pump (20) that contends with between sand Road narrows (19), use to make and press within the sand developing tube (22), impel washed-out sand pipeline (16), (19), (22) interior fluid to flow to vortex sand-washing device (24) greater than pressing within the press filtration tube (1).

6, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 4 is characterized in that: washed-out sand pipeline (16), (19), (22) are established a choke valve (18) and are used the rotational velocity of water sand mixed liquor (23) in vortex sand-washing device (24) of controlling in the sand developing tube (22) between suction sand Road narrows (19) and pressure-reducing valve (17).

7, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 1, it is characterized in that: former water (10) is to pass through in the horizontal flow mode of vertical press filtration tube (1) axial line to be surrounded on equal pipe arrangement (12) filter material (3) all around, and filter material (3) is in slowly moving down along axial line with the orthogonal direction of former water (10).

8, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 1, it is characterized in that: vortex sand-washing device (24) is to lead in the axial butt welding of leading coil (29) to revolve Taper Pipe (27), establish maintenance flange (26) in the axle top weldering of leading coil (29) again, establish an approximate Archimedian spiral line type water conservancy diversion vortex tube (25) tangent in following weldering of maintenance flange (26), use making the water sand mixed liquor (23) that becomes a mandarin lead in feeding that fluid rotates and unlikely generation sinuous flow around the center of circle in the concentric circles mode in coil (29) the Shi Nengyu pipe with leading coil (29); Set a position flange (9) in leading coil (29) apart from a certain position weldering of axial bottom, locating flange (9) seals press filtration tube (1) end face by this; Vortex sand-washing device (24) end face is with blind method door screen (39) and maintenance flange (26) combined closing, wear blow-off pipe (30) in blind method door screen (39) center, the fluid suction side of blow-off pipe (30) is lower than water conservancy diversion vortex tube (25), using the water sand mixed liquor (23) that makes water conservancy diversion vortex tube (25) feeding can be rotated down around blow-off pipe (30), and washed-out sand waste water (33) can be discharged along blow-off pipe (30).

9, sealing horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 8 is characterized in that: blow-off pipe (30) is established the choke valve (32) of the climbing speed of secondary washed-out sand water (31) in the control press filtration tube (1) with the discharge of control washed-out sand waste water (33).

10, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 2; it is characterized in that: all pipe arrangement (12) is a pipe; be drilled with some spillway holes (14) on its tube wall; spillway hole (14) surface then covers with check sheet (13); use and make former water (10) feed equal pipe arrangement (12) to be become stabilized fluid to penetrate filter bed by uniform distribution; and mat check sheet (13) when shutting down with spillway hole (14) locking, avoid filter material to flow out press filtration tube (1).

11, closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 1 is characterized in that: vortex sand-washing device (24) is to utilize around the eddy current (28) that is rotated down of leading coil (29) rotation filter material (3) is separated with suspended particulates (SS) and washed-out sand waste water (33).

12, a kind of filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: former water (10) is when penetrating press filtration tube (1) filter bed, filter material (49), (50) washing and cleaning operation also carries out simultaneously, washed-out sand pipeline (16) wherein, (19), (22) the saturated filter material of being carried (2) and the mixed liquor (23) of washed-out sand water (15), via the less outer filter material (50) of the screening effect particle of sizing device (47) be distributed in separating tube (48) around, metafiltration material (50) then was distributed in sizing device (47) and separates in the space filter material (49) in the press filtration tube (1) with separating tube (87) within particle was big, (50) being distinguished into the former water of two-layer acceptance (10) with separating tube (48) filters.

13, the filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 12, it is characterized in that: the coil (29) of leading of sizing device (47) is drilled with some screenings hole (46) on the tube wall below the locating flange (9), its pore size is used outer filter material (50) in the eddy current (28) that makes in leading coil (29) rotation and is penetrated screening hole (46) with centrifugal force and fall in the press filtration tube (1) along the collar (44) between internal layer filter material (49) and outer filter material (50).

14, the filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 12, it is characterized in that: the axial line of sizing device (47), separating tube (48) and the collar (44) is to overlap, sizing device (47) is surrounded by the collar (44) ring-type below locating flange (9), and sizing device (47) docks with separating tube (48) and is linked to be tubular conduit.Use and separate internal layer filter material (49) and the distribution of outer filter material (50) in press filtration tube (1).

15, the filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 12, it is characterized in that: separating tube (48) is a circle shape pipe, its tube wall is drilled with plurality of holes, its axial bottom side is an opening port, use the former water (10) that equal pipe arrangement (12) is flowed out and to follow this hole and enter outer filter material (50) and filter, also make internal layer filter material (49) also can flow to out sandpipe (21) simultaneously and carry out the filter material washing and cleaning operation from separating tube (47) bottom side openings.

16, a kind of filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer, it is characterized in that: former water (10) is when penetrating press filtration tube (1) filter bed, filter material (56), (57) washing and cleaning operation also carries out simultaneously, washed-out sand pipeline (16) wherein, (19), (22) the saturated filter material of being carried (2) and the mixed liquor (23) of washed-out sand water (15), make filter material (56) via vortex sand-washing device (24), (57) with suspended particulates (SS) layering rotation, gravitational settling effect via sedimentation pipe (55), the internal layer filter material (56) that proportion and particle are all bigger in sedimentation pipe (55), fall into separating tube (54) and be surrounded on equal pipe arrangement (12) around, the water sand mixed liquor (23) that flows out sedimentation pipe (55) is then limited because of the upflow velocity at press filtration tube (1) top, the periphery that press filtration tube (1) is distributed in separating tube (54) is fallen in outer filter material (57) the mat deadweight that proportion is lower, makes the filter material (49) in the press filtration tube (1), (50) by its granular size decker.

17, the filter method of closed horizontal-flow type filter capable of automatically cleaning filtering layer according to claim 16 is characterized in that: vortex sand-washing device (24), reversing tube (53), conduit (52), sedimentation pipe (55), separating tube (54) are concentric arrangement; Vortex sand-washing device (24) top side is sealed with blind flange (51), the leading of bottom side revolved Taper Pipe (27) and is connected with the conduit (52) that inserts sedimentation pipe (55), the outlet of conduit (52) is surrounded with reversing tube (53) ring-type, axial bottom surface is sealed then for open in the axial bottom surface of reversing tube (53), reversing tube (53) then is that sedimentation pipe (55) ring-type is surrounded, the axial bottom side of sedimentation pipe (55) links to each other with separating tube (54) and forms tubular space, and the axle top of sedimentation pipe (55) then is an opening port.