CN105502548A

CN105502548A - Aerated grit chamber with fixed tail end for grit discharge

Info

Publication number: CN105502548A
Application number: CN201510886715.6A
Authority: CN
Inventors: 宋德安
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-07
Filing date: 2015-12-07
Publication date: 2016-04-20

Abstract

The invention provides an aerated grit chamber with a fixed tail end for grit discharge. The aerated grit chamber comprises an aerator pipe, a grit launder, a grit hopper, a grit absorption device and a grit absorption pipeline, and is divided into an aeration area and a non-aeration area, wherein the aerator pipe is arranged in the aeration area and used for aerated grit washing and cyclone grit removal, and grit deposited in the area can be accumulated in the grit hopper which has certain slope in the direction of a water outlet end; the non-aeration area is located at the water outlet end and can be used for gravity grit setting, the grid hopper is arranged at the bottom of the non-aeration area, and the grit absorption device is fixedly mounted at the bottom of the grid hopper; the grit hopper is used for receiving grit deposited in the area and the grit which is deposited in the grit launder in the aeration area and moves continuously to the water outlet end; finally, the grit absorption device can discharge the grit from the grit absorption pipeline. The aerated grit chamber has the function of enhancing grit washing and setting, a joist barrow and corresponding accessory equipment are not used, the grid can be discharged timely, the equipment maintenance frequency is reduced, and manual grid cleaning is not needed.

Description

A kind of end fixes the aerated grit chamber of sediment outflow

Technical field

The present invention relates to technical field of sewage, specifically a kind of end fixes the aerated grit chamber of sediment outflow.

Background technology

For ensureing the normal operation of sewage disposal device facility, generally sand setting process section need be set at pretreatment stage.Aerated grit chamber is desanding facility the most frequently used in China's urban wastewater treatment firm, but can not meet the needs of sand grains removal at present.Wherein maximum problem is exactly that sediment outflow is thorough, causes sand grains constantly to accumulate at the bottom of pond, water side, necessary regular emptying rear artificial sand removal, otherwise sand grains may be caused to enter subsequent technique section with current, affect water outlet.Trace it to its cause, be due to the defect in the design of existing aerated grit chamber, specifically have 3 points.

The first in aerated grit chamber, water inlet water impact and aeration effect under, sand grains is difficult in feed-water end sedimentation, but is deposited on water side in a large number.And the suction sand equipment of aerated grit chamber need move suction sand at Inlet and outlet water two ends.Therefore inhale sand equipment and constantly need adjust height, otherwise sand grains may cause the damage of inhaling sand equipment too much, and sand grains very little time do not reach sediment outflow effect.But be in operation, adjust so frequently and in fact cannot realize, therefore the sand grains of aerated grit chamber water side can be cumulative, finally can only by emptying for pond rear artificial sand removal.

It two is that the sand grains of small particle size is difficult to sedimentation under the effect of aeration, can only flow into subsequent technique section, then cause effluent quality to exceed standard with current.

It three is that existing suction sand equipment is generally arranged on the car of purlin, and its operation depends on sensor device, and by cable power supply.Such device is in moist, dirty environment, and failure rate is higher.

Summary of the invention

For the problems referred to above, the invention provides the aerated grit chamber that a kind of end fixes sediment outflow.

Technical scheme of the present invention is: a kind of end fixes the aerated grit chamber of sediment outflow, can be divided into aeration and not aeration two regions, and comprise aeration tube, sand launder, sand hopper, inhales sand equipment, sand suction pipe road.Wherein aerated space is provided with aeration tube, for aeration washed-out sand and Swirling flow sand-removing.Can be accumulated in sand launder at the sand grains of this area deposition, wherein sand launder has certain gradient to direction, water side.Aerated space is not positioned at water side, can be used for gravitational sand settling, arranges sand hopper bottom it, and sand equipment is inhaled in fixed installation bottom sand hopper.Sand hopper to be deposited in sand launder and the continuous sand grains to water side movement for the sand grains and aerated space being collected in this area deposition.Sand grains can be discharged by sand suction pipe road by final suction sand equipment.

Principle of work of the present invention is: strengthen its function by arranging aerated space respectively with not aerated space.Can aeration be strengthened in aerated space, remove the organism on sand grains, and strengthen cyclonic action.In not aerated space, affecting larger small particle size sand grains by aeration can at this gravity settling.Utilize the many features in water side accumulation of sand grains.Sink to the sand in sand launder in aerated space, utilize waterpower plug-flow and gravity compressed effect, and by arranging certain slope, can water side be pooled to.Establish sand hopper in not aerated space, both can collect the sand grains in sand launder, the sand grains of this regional gravity sedimentation can be collected in again.Because all sand grains are all finally collected in sand hopper, therefore only need fixedly mount suction sand equipment in sand hopper.Do not need to use purlin car and corresponding auxiliary facility etc.By timely sediment outflow, suction sand apparatus overload sand grains can being avoided to accumulate cause damages, and unnecessary artificial sand removal.

Advantage of the present invention is: the invention provides the aerated grit chamber that a kind of end fixes sediment outflow, has the effect of strengthening washed-out sand sand setting, removes the use of purlin car and corresponding auxiliary facility from, can discharge sand grains in time, reduce overhaul of the equipments frequency, without the need to artificial sand removal.

Accompanying drawing explanation

Fig. 1 is the front view schematic diagram that a kind of end of the present invention fixes the aerated grit chamber of sediment outflow.

Fig. 2 is the vertical view schematic diagram that a kind of end of the present invention fixes the aerated grit chamber of sediment outflow.

Embodiment

Below in conjunction with drawings and the specific embodiments, the aerated grit chamber that a kind of end of the present invention fixes sediment outflow is described further.

As shown in Figure 1, a kind of end fixes the aerated grit chamber of sediment outflow, comprises aeration tube 1, sand launder 2, sand hopper 3, inhales sand equipment 4, sand suction pipe road 5, and point aerated space 6 and not aerated space 7.

Wherein aerated space 6 is provided with aeration tube 1 and sand launder 2, for aeration washed-out sand and Swirling flow sand-removing.Sand launder 2 has certain slope to direction, water side, preferably can be 5%.This gradient Bound moisture tries hard to recommend stream and gravity compressed effect can push the sand grains of deposition in sand launder 2 to water side gradually.

Aerated space 7 is not positioned at water side, and is provided with sand hopper 3.By increasing this not aerated space 7, by being subject to the small particle size sand grains that aeration function influence is larger, can be fallen in sand hopper 3 by action of gravity at this.In addition, sand hopper 3 is also for receive in sand launder 2 sedimentation and push the sand grains of water side gradually to.Finally, allly can be all collected in sand hopper 3 by sedimentation sand grains.

Be installed with bottom sand hopper 3 and inhale sand equipment 4, can be how many according to the sand grains in sand hopper 3, the continuous or interval sediment outflow by sand suction pipe road 5, thus ensure the timely discharge of sand grains.Simultaneously owing to amassing sand without a large amount of in sand hopper 3, can avoid inhaling the frequent maintenance of sand equipment 4 and unnecessary artificial sand removal.

As shown in Figure 2, a kind of end fixes the aerated grit chamber of sediment outflow, and sand hopper 3 is positioned at not aeration zone 7, and for being inverted terrace with edge structure, its bottom centre position is installed with inhales sand equipment 4, is discharged by sand grains by sand suction pipe road 5.

Claims

1. end fixes an aerated grit chamber for sediment outflow, it is characterized in that: comprise aeration tube, sand launder, sand hopper, inhales sand equipment, sand suction pipe road, and point aerated space and not aerated space.

2. a kind of end according to claim 1 fixes the aerated grit chamber of sediment outflow, it is characterized in that: bottom aerated space, be provided with sand launder, and sand launder has certain slope to direction, water side.

3. a kind of end according to claim 1 fixes the aerated grit chamber of sediment outflow, it is characterized in that: bottom not aerated space, be provided with sand hopper, sand grains and aerated space for being received in this regional gravity sedimentation to be deposited in sand launder and the continuous sand grains to water side movement.

4. a kind of end according to claim 1 fixes the aerated grit chamber of sediment outflow, it is characterized in that: bottom sand hopper, sand equipment is inhaled in fixed installation, and discharges sand grains by sand suction pipe road.

5. a kind of end according to claim 1 fixes the aerated grit chamber of sediment outflow, it is characterized in that: inhale sand equipment and do not use purlin car and corresponding auxiliary facility.