CN2663407Y

CN2663407Y - Floating weir notch hydrocone type activated sludge process decanter

Info

Publication number: CN2663407Y
Application number: CNU2003201020264U
Authority: CN
Inventors: 蒋芊
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-31
Filing date: 2003-10-31
Publication date: 2004-12-15
Anticipated expiration: 2013-10-31

Abstract

The utility model discloses a floating weir syphon type activated sludge system decanter, relating to a sanitary-treating arrangement of the sequencing batch activated sludge system, consisting of a floating skimming weir groove, a syphon drain pipe and a vacuum system, the syphon drain pipe is fixed on the wall of the sequencing batch activated sludge system reaction tank, two floats are arranged on the skimming weir groove, a butterfly spoiler is arranged on the syphon drain pipe, the floating weir drip chamber is communicated with the sequencing batch activated sludge system decanting well by the syphon pipe. The utility model has no contact friction, no mechanical failure, no problem of water leakage after sealing, and no need overhaul the component under water; the skimming weir has an automatic lifting, no need add the dynamic, having a steady skimming and a good water quality.

Description

The floating weir notch hydrocone type activated sludge process is strained hydrophone

Technical field

The utility model relates to a kind of waste disposal plant of intermittent activated sludge process.

Background technology

Existing intermittent activated sludge process strains hydrophone, be called for short SBR down strains hydrophone, and this class is strained hydrophone following form: 1, rotary-type water decanter, 2, the siphonic decant device, 3, the telescopic hydrophone of straining, 4, the box hydrophone of straining of air-water displacement, 5, the valve formula of relying on oneself strains hydrophone.More than strain hydrophone and have some problems to some extent, as: rotary-type water decanter topworks breaks down easily, and sealing such as leaks at repair and maintenance inconvenience between water shoot and pond.The siphonic decant device is from the lowest water level draining, evenly draining, and mud is easily taken away near the sludge blanket face in the drainage point influences effluent quality.The telescopic hydrophone topworks of straining is electronic leading screw or cylinder wireline, and the bottom water shoot inserts in the rubber sealing boot, and two parts damage easily, maintenance difficult.Air-water displacement is box, and to strain hydrophone similar to rotary-type water decanter.It is to drive crest of weir by buoyancy tank to move up and down that the valve formula of relying on oneself is strained hydrophone, and the bottom is connected with outlet valve with flexible pipe, the crest of weir instability, and the dumb and easily aging fracture of flexible pipe, outlet valve control is complicated.

Summary of the invention

The purpose of this utility model is to avoid weak point of the prior art, and a kind of contactless friction is provided, the floating weir notch hydrocone type activated sludge process of not having mechanical fault, a no seal leakage problem strains hydrophone.

Can take following technical scheme to realize purpose.

The floating weir notch hydrocone type activated sludge process is strained hydrophone, form by buoyant water-discharging weir trough, siphon drainage pipe and vacuum system, siphon drainage pipe is fixed on the sequencing batch active sludge reaction pool wall, strain two floats are housed on the mill weir groove, the butterfly flaps is housed on the siphon drainage pipe, and buoyant water-discharging weir trough drip chamber is communicated with the activated sludge process drain well with siphon drainage pipe.

The depth of immersion of float makes its suffered buoyancy just equal the weight on whole floating weir, and during non-displacement mode, skimming weir withstands on underwater 140mm; During hull-borne, the weir crest depth of water changes between 50～100mm; Clear water flows into drip chamber through skimming weir, vertical header, transverse collector pipe.The drip chamber upper end is connected with float and weir notch, but does not communicate; The drip chamber bottom is communicated with transverse collector pipe, and the reinforcement effect of bottom is arranged simultaneously.Floating weir moves up and down, prevents horizontal drift along two guideposts; Insert respectively in floating weir drip chamber and the SBR pond drain well at the siphon drainage pipe two ends, and the magnetic valve of bleeding during draining is opened, and siphon pipe forms syphonic effect.During not draining, pressure-releasing electromagnetic valve is opened, and siphon is destroyed, and siphon pipe becomes watertight valve.Float is most of to be immersed in the water, has the certain protection height to emerge, and guarantees that floating weir stably swims in the water.The area of float is big as far as possible; Immersed depth is little, with the floating weir float-amount that reduces to descend and cause owing to water level in the drip chamber.The float area is 5～6 with the ratio of drip chamber face, is equivalent to the every decline 120mm of water level in the drip chamber, the floating weir 15～20mm that will emerge.

Keeping the interior water level of drip chamber is the key that guarantees floating weir steady operation within setting range, also is the basis that floating weir combines with siphon drainage.Automatically regulate such as ball float, ball float moves up and down with change of level in the drip chamber.Is connected with very thin stainless steel wire rope between ball float and the butterfly flaps, when ball float descends, spurs the flaps rotating handle, the flaps open degree is turned down by the weight of ball float; When ball float rose, flaps no longer was subjected to the pulling force of ball float and under the effect of rotating handle weight, its open degree is opened greatly.Ball float moves to lower limit by the balance water level upper limit of setting, and the butterfly flaps then rotates to complete shut-down by standard-sized sheet.Ball float can only be obtained a metastable position between balance water level district bound, promptly water level can only change minutely in equilibrium area in the drip chamber.

The relative prior art of present technique has following advantage and effect

Contactless friction does not have mechanical fault, no seal leakage problem, the anhydrous parts of maintenance down; Skimming weir need not additionaling power with the water level automatic lifting, and it is stable to cast aside water, and water quality is good.

Description of drawings

Fig. 1 is that the floating weir notch hydrocone type activated sludge process is strained water heater structure figure;

Fig. 2 is the side-view of Fig. 1;

Fig. 3 is floating weir one-piece construction figure;

Fig. 4 is weir notch block construction figure;

Fig. 5 is weir notch parts sectional views;

Fig. 6 is drip chamber and siphon arrangement figure;

Fig. 7 is pneumatic varitrol figure;

Fig. 8 is ball float self-regulation structure figure;

Fig. 9 is floating weir notch hydrocone type automatic principle of compensation figure.

Embodiment

In conjunction with embodiment technical scheme is described in detail.

Embodiment 1, a kind of floating weir notch hydrocone type activated sludge process are strained hydrophone, it is characterized in that: form by buoyant water-discharging weir trough 2, siphon drainage pipe 1 and vacuum system 4, siphon drainage pipe is fixed on the sequencing batch active sludge reaction pool wall, strain two floats 5 are housed on the mill weir groove 7, butterfly flaps 18 is housed on the siphon drainage pipe, and buoyant water-discharging weir trough drip chamber 10 usefulness siphon drainage pipes are communicated with activated sludge process drain well 16.

Embodiment 2, floating weir notch hydrocone type activated sludge process are strained hydrophone, the buoyant water-discharging weir trough is made up of float, guidepost 3, weir notch 7, vertical header 8, transverse collector pipe 9 and drip chamber, float is topmost, in the middle of two floats is water-discharging weir trough, upstream face has prosopyle 12, skimming weir 6 is arranged in the prosopyle, and venting hole 11 is arranged at the weir notch top; The drip chamber upper end is connected with float and weir notch, but does not communicate; The drip chamber bottom is communicated with transverse collector pipe; Vacuum system is made of submersible pump and ejector; The float on floating weir is fluid-tight integral foam plastics, and stainless steel outer packed plate also is connected with weir notch.

Embodiment 3, floating weir notch hydrocone type activated sludge process are strained hydrophone, the pneumatic automatic-adjusting device control pneumatic piston 13 that employing is made up of three air-blast atomizer safety devices 15, two three 17, two bistables 16 and three-stable state delivery valve 14 drives the butterfly flaps and carries out the drip chamber regulation of level.

Embodiment 4, floating weir notch hydrocone type activated sludge process are strained hydrophone, adopt the ball float automatic-adjusting device that is connected with stainless steel wire rope 19 between ball float 20 and the butterfly flaps to carry out the drip chamber regulation of level, automatic-adjusting device is the pulley casing 21 of fixed pulley and mobile pulley group 22 compositions.

Claims

1, a kind of floating weir notch hydrocone type activated sludge process is strained hydrophone, it is characterized in that: form by buoyant water-discharging weir trough, siphon drainage pipe and vacuum system, siphon drainage pipe is fixed on the sequencing batch active sludge reaction pool wall, strain two floats are housed on the mill weir groove, the butterfly flaps is housed on the siphon drainage pipe, and buoyant water-discharging weir trough drip chamber is communicated with the activated sludge process drain well with siphon drainage pipe.

2, the hydrophone of straining according to claim 1, it is characterized in that: the buoyant water-discharging weir trough is made up of float, guidepost, weir notch, vertical header, transverse collector pipe and drip chamber, float is topmost, in the middle of two floats is water-discharging weir trough, upstream face has the prosopyle, skimming weir is arranged in the prosopyle, and venting hole is arranged at the weir notch top; The drip chamber upper end is connected with float and weir notch, but does not communicate; The drip chamber bottom is communicated with transverse collector pipe; Vacuum system is made of submersible pump and ejector; The float on floating weir is fluid-tight integral foam plastics, and stainless steel outer packed plate also is connected with weir notch.

3, the hydrophone of straining according to claim 1 and 2, it is characterized in that: adopt by three air-blast atomizer safety devices, two three, two bistables are carried out the drip chamber regulation of level with the pneumatic automatic-adjusting device control pneumatic piston drive butterfly flaps that a three-stable state delivery valve is formed.

4, the hydrophone of straining according to claim 1 and 2, it is characterized in that: adopt the ball float automatic-adjusting device that is connected with stainless steel wire rope between ball float and the butterfly flaps to carry out the drip chamber regulation of level, automatic-adjusting device is the pulley casing of fixed pulley and mobile pulley group composition.