CN2383570Y - Double weir rotary draining device - Google Patents

Abstract

The utility model discloses a rotary type water decanting device with double weir openings, belonging to a sewage treatment device. The water decanting device comprises an electric drive device, a connecting rod and slide block mechanism, screw rod nuts, a carrier pipe with weir openings, residue blocking buoys, a residue blocking plate and a turning support. Because the utility model adopts concentric and symmetrical cambered plates with weir openings between the symmetrical buoys, metal sealing blocks on the cambered surface and the position of an opening of a water collecting tank are caused to form a floating and sealing structure; the residue blocking plates on both ends of the cambered plates are screwed with a flange sleeve barrel and are connected with a spiro union shaft of an end plate of the water collecting tank in a movable fit method, the water collecting tank is caused to be rotated following the carrier pipe, and the symmetrical cambered plates and weir openings can be always kept in a level state following the buoys. The utility model can realize water collection with double weir openings and cause a water decanting function to be more perfected.

Description

Two crest of weir rotary-type water decanters

The utility model relates to sewage disposal device, particularly a kind of pair of crest of weir rotary-type water decanter.

Rotary-type water decanter is one of key equipment of sequencing batch active sludge (SBR technology) sewage disposal.Generally form by carrier pipe, pushing off the slag floating drum and the parts such as slag trap and pivoting support of electric transmission machanism, connecting rod slider mechanism, feed screw nut, band crest of weir.

Chinese patent 99211432.2 adopts the monobuoy single weir openings, the carrier pipe rotation strain the water device, when crest of weir is forced to tilt to descend, when being lower than the water surface in the reaction tank, supernatant is automatically crossed a side single weir opening in the reaction tank, discharges outside the pond along carrier pipe.

Chinese patent CN 2120612U discloses a kind of " straining hydrophone automatically ", utilize water tank draining inflation come-up and water-filling exhaust to sink, as straining the hydrophone driving mechanism automatically, though employing twin float, but when water tank exhaust water filling buoyancy reduced to descend, floating drum floated on the surface, and the weir pipe tilts, the lower edge of crest of weir there is not in the entry, and the clear water of the water surface is managed outside the pipe discharge pond, side single weir opening inflow weir by the weir like this.

The prior art weak point is: it is for handling the water yield at 500m ³/ h is following all right, but for handling the water yield at 500m ³The medium-sized particularly large-scale single weir opening rotary-type water decanter that/h is above, its processability of product structure is not good enough, because the crest of weir length that big specification list crest of weir is strained hydrophone is very long, particularly ought need crest of weir load (each second, the water inlet of every meter long crest of weir rose number) less occasion, more need the crest of weir that extends.And crest of weir is to be arranged on the crest of weir cell body, and Chang cell body welding deformation is big like this, and integral rigidity is poor, and the crest of weir linearity is difficult for guaranteeing.In order to guarantee machining accuracy, must take technological measure, this makes troubles for processing, manufacturing, installation, debugging.And in straining the water process, require crest of weir in total length, to turn round the every instantaneous all keeping parallelisms state in axle center, and make whole crest of weir, to guarantee the flow equalization at the every place of crest of weir every instantaneous all being in the same horizontal plane with trunk line.Under low-cost condition, realize above requirement, relatively more difficult beyond doubt.

The purpose of this utility model is exactly that crest of weir does not tilt thereupon for a kind of carrier pipe (swing pipe) rotation is provided, make in the reaction tank supernatant cross the crest of weir of the both sides that are in level all the time simultaneously, enter carrier pipe and discharge two crest of weir rotary-type water decanters outside the pond.Therefore, the utility model has overcome deficiency of the prior art, has any different in prior art.

The utility model designs by following technical scheme.

Comprise straining in the hydrophone that the carrier pipe, pushing off the slag floating drum, slag trap of electric transmission machanism, connecting rod slider mechanism, feed screw nut, band crest of weir and pivoting support constitute, establish the concentric symmetrical arc of band crest of weir between the floating drum of symmetry, make its intrados and water leg both sides open-mouth sealing block form floating sealing structure, the flange sleeve that the slag trap at arc two ends is spirally connected is spirally connected with the water leg end plate and is connected movingly between the axle, water leg is rotated with carrier pipe, and the arc and the crest of weir of symmetry remain level with floating drum, form two-sided water inlet crest of weir.

During work, motor is through the bevel gear rotation of reductor rotating band nut, the leading screw that screws with nut is moved axially as vertical direction, leading screw drives the slide block in the runner rails, the connecting rod hinged with slide block promotes the carrier pipe rotation, when crest of weir was forced to down be reduced to the water surface in the reaction tank, supernatant was automatically crossed two crests of weir in the reaction tank, discharges outside the pond along carrier pipe.

She Ji the utility model processability of product structure is good like this.From the length of two crest of weir cell bodies, it is half of single weir opening cell body length, thereby helps guaranteeing the precision of processing, make, installing and debugging, and has improved structural rigidity, and stress deformation is little, is particularly suitable for manufacturing and designing the large-scale hydrophone of straining.In addition, note in the design deadweight of parts such as two crest of weir cell bodies and floating drum and the reasonable coupling of buoyancy also can be saved power consumption, help the reduction of operating cost.

Also guaranteed simultaneously to turn round the every instantaneous all keeping parallelisms state in axle center with trunk line in the crest of weir total length, and made whole crest of weir, to guarantee the flow equalization at the every place of crest of weir every instantaneous all being in the same horizontal plane.

Below in conjunction with drawings and Examples it is described the utility model.

Fig. 1 is the utility model side-looking structural representation.

Fig. 2 is the horizontal slag trap assembly structure of a utility model schematic diagram.

Fig. 3 is the schematic top plan view of Fig. 2.

Fig. 4 is the B-B rotation schematic diagram among the utility model Fig. 3.

It is floating sealing structure vertical profile schematic side view between arc and water leg that Fig. 5 amplifies for the utility model Fig. 2 I place.

Fig. 6 is the utility model Fig. 5 structure schematic top plan view.

Fig. 7 is the utility model metal sealing block vertical profile schematic side view.

1. vertical slag trap, 2, floating drum, 3, the blind plate rectangular flange, 4, bolt, 5, bolt, 6, one sections annular flanges, 7, crest of weir, 8, arc, 9, axle, 10, bolt, 11, the water leg end plate, 12, horizontal slag trap, 13, bolt, 14, flange sleeve, 15, water leg, 16, branch pipe(tube), 17, the sealing metal piece, 18, cover plate, 19, bolt, 20, the sheet spring, 21. nut, 22, screw, 23, caulking gum, 24, flat mouthful of branch pipe(tube), 25, transmission gear for electric motor, 26, connecting rod slider mechanism, 27, feed screw nut, 28, pivoting support.

Motor reducer drives the bevel gear group and rotates, and screw mandrel drives slide block promotion connecting rod rotates trunk line and branch pipe(tube) on the pivoting support, makes to be linked to be whole arc, floating drum, slag trap sinking.

In two crest of weir rotary-type water decanters, also a strip crest of weir is welded in two arc upper edges of symmetric arrangement with one heart, forms two-sided water inlet crest of weir.The floating drum of symmetric arrangement all links to each other with the horizontal slag trap in rectangle two ends with the two ends of arc, and two horizontal slag traps are connected with axle on the end plate that is connected water leg movingly by flange sleeve.Strain in the water process, the water leg that is connected with branch pipe(tube) with flange, around the trunk line revolution, on the end plate axially under the track that moves be cambered surface, two crests of weir with in the axle decline process under the symmetrical buoyancy of floating drum, be in level all the time.Handle water in the reaction tank and cross that two crests of weir enter water leg and outside branch pipe(tube) was discharged the pond, under displacement parameter constant situation, two crests of weir had shortened one times than the entire length of single weir opening, have improved structural rigidity.

Have good processability of product structure for processing, manufacturing, installation, debugging, especially be fit to be designed to the hydrophone of straining of large-scale wastewater treatment plant application.

The arc two ends are welded with one section annular flange, with bolt the horizontal slag trap of itself and rectangle are linked to each other.The sealing floating drum is to be formed by two channel-section steel butt welding that corrosion resistant plate is pressed into, and floating drum also can be made into the cross section for circular, and effect is identical, and at the blind plate rectangular flange of the both ends of the surface welding strap bolt through hole of floating drum, the flange on the floating drum is connected with bolt with horizontal slag trap.Upper surface at each floating drum is welded with vertical slag trap, and vertically the upper surface of slag trap is concordant with the upper surface of horizontal slag trap; Have after inverted U-shaped elongated slot connects into integral body as the arc of band crest of weir, floating drum, slag trap etc. in the horizontal bottom of slag trap, it is installed in passage on the axle, axle is to be connected on the water leg end plate with screw rod in advance, the centralized positioning of arc is that the endoporus pine with flange sleeve is enclosed within on the axle, and the semi arch on the inverted U-channel of the outer garden of the wheel face of flange sleeve and horizontal slag trap cooperates, the center of this semi arch is the center of the arc of prearranging, and with bolt flange sleeve is linked to each other with horizontal slag trap.

The polygon cross section of water leg is the corrosion resistant plate press forming, and water leg uncovered both sides, upper end and water leg end plate are welded to connect.Water leg end plate Lower Half profile conforms to the water leg shape of cross section, and the water leg end plate first half is the R circular arc, and the R of this R and arc intrados is a loose fit.Open circular hole with installation shaft in water leg end plate appropriate location, axle is connected on the water leg end plate with bolt.

When straining water, around trunk line revolution (clockwise), the movement locus of axle is a cambered surface to water leg together with some flat side's branch pipe(tube)s, and axle drives horizontal slag trap and descends, and at this moment, two floating drums make two crests of weir remain parastate under the buoyancy of water effect.Processing water is crossed two crests of weir and is flow in the water leg, discharges outside the pond along pipeline.

Because having, arc and water leg relatively rotate, for preventing that handling water leaks in the water leg between the intrados of water leg open-mouth and arc, therefore be provided with automatic compensate for wear floating seal, two rectangular plate upper surfaces of vertically arranging at the water leg open-mouth, arrange a series of stainless steel metal sealing blocks, the R circular arc is made as first place's sealing surface in itself and arc contact position, the upper surface of metal sealing block has a square groove that garden shape rubber strip is installed, garden shape rubber strip exceeds about the about 1mm of metal sealing block upper surface and seals as second place, and the metal sealing block is covered with the cover plate of angle steel shape, the metal sealing block is regulated automatically by plate-like spring, make it freely to stretch in the R direction, cover plate is connected with water leg with screw.For the compensating sealing surface galling, can unclamp nut and clockwise rotate and the loosening screw of riveting of sheet spring, can regulate the sealing force between metal sealing block and the arc.

Claims (9)

1. two crest of weir rotary-type water decanter, comprise electric transmission machanism, connecting rod slider mechanism, feed screw nut, the carrier pipe of band crest of weir, the pushing off the slag floating drum, slag trap and pivoting support etc., it is characterized in that establishing between the symmetrical floating drum the concentric symmetrical arc of band crest of weir, make the sealing block of its intrados and water leg both sides open-mouth form floating sealing structure, the flange sleeve that the slag trap at arc two ends is spirally connected is spirally connected with the water leg end plate and is connected movingly between the axle, water leg is rotated with carrier pipe, and two crests of weir of symmetrical arc remain level with floating drum, form two-sided water inlet crest of weir.

2. the hydrophone of straining according to claim 1 is characterized in that with one heart and a strip crest of weir is respectively welded in two arc upper edges of symmetric arrangement, forms two-sided water inlet crest of weir.

3. the hydrophone of straining according to claim 1, the two ends that it is characterized in that floating drum and arc all link to each other with the horizontal slag trap of rectangle, two horizontal slag traps are connected with axle on the end plate that is connected water leg movingly by flange sleeve, the track that axially moves down on the end plate is a cambered surface, two crests of weir with in the axle decline process under the symmetrical buoyancy of floating drum, be in level all the time.

4. the hydrophone of straining according to claim 1 is characterized in that the arc two ends are welded with one section annular flange, link to each other the horizontal slag trap of itself and rectangle with bolt.

5. the hydrophone of straining according to claim 1 is characterized in that having inverted U-shaped elongated slot in the horizontal bottom of slag trap, connect into integral body as the arc of band crest of weir, floating drum slag trap etc. after, it is installed in passage on the axle.

6. the hydrophone of straining according to claim 1, the centralized positioning that it is characterized in that arc are that the endoporus pine with flange sleeve is enclosed within on the axle, and the semi arch on the inverted U-channel of the wheel face cylindrical of flange sleeve and horizontal slag trap cooperates.

7. the hydrophone of straining according to claim 1, it is characterized in that the water leg upper end is uncovered, both sides and water leg end plate are welded to connect, the water leg end plate first half is a R garden arc, the R of this R and arc intrados is a loose fit, water leg end plate Kai Yuan hole is connected axle on the water leg end plate with bolt with installation shaft.

8. the hydrophone of straining according to claim 1, it is characterized in that two rectangular plate upper surfaces of vertically arranging at the water leg open-mouth, arrange a series of stainless steel metal sealing blocks, R garden arc is made in itself and arc contact position, the upper surface of metal sealing block has a square groove that garden shape rubber strip is installed, and with the cover plate of angle steel shape the metal sealing block is covered; The metal sealing block is regulated automatically by plate-like spring, and the metal sealing block can freely be stretched in the R direction, and cover plate is connected with water leg with screw.

9. the hydrophone of straining according to claim 1 is characterized in that being welded with vertical slag trap at each floating drum upper surface, and vertically the upper surface of slag trap is concordant with the upper surface of horizontal slag trap.

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