CN203030054U - Air blasting and air lifting device of rotational flow sand settling tank - Google Patents
Air blasting and air lifting device of rotational flow sand settling tank Download PDFInfo
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- CN203030054U CN203030054U CN 201320013815 CN201320013815U CN203030054U CN 203030054 U CN203030054 U CN 203030054U CN 201320013815 CN201320013815 CN 201320013815 CN 201320013815 U CN201320013815 U CN 201320013815U CN 203030054 U CN203030054 U CN 203030054U
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Abstract
The utility model discloses an air blasting and air lifting device of a rotational flow sand settling tank. An air blasting pipeline or air lifting pipeline of the air blasting and air lifting device is provided with a high-voltage water access port. When the air blasting and air lifting device provided by the utility model is repaired, maintaining personnel are not required to descend to a settling tank, only the air blasting or air lifting pipeline is required to be introduced to high-pressure water for washing, mud in a mud bucket and the pipeline can be diluted; the repairation process does not influence the production and running of the whole water plant; the repair time is shortened greatly; and the issue mud accumulation on the bottom of a biochemical reaction tank is released to a certain extent.
Description
Technical field
The utility model relates to the physical treatment field of sewage disposal, refers to that especially the gas of setting pot dashes, air-lift device.
Background technology
Setting pot has become the necessary facility of municipal sewage plant's (particularly dirty combined system drainage system of rain) as the safeguard of the normal operation of two stage treatment.The effect of setting pot mainly is to remove inorganic particles such as proportion in the sewage is big, the sand grains that is easy to precipitate and separate, gravel.If without desanding, sand grains enters the subsequent treatment facility, will inevitably cause the wearing and tearing of equipment or in structures, deposit, cause the equipment operation troubles, be mingled in the mud simultaneously, also influence processing and the utilization of mud, therefore, setting pot should be set before biological treatment remove precipitable solids such as silt particle in advance.
Setting pot mainly contains four kinds of forms: flat flow, vertical-flow, aeration type and spiral-flow type.Flat flow rectangle setting pot is the form of using always, has simple structure, good the having a few for the treatment of effect.Vertical-flow setting pot is to flow from bottom to top after sewage enters in the pond by central tube, and inorganic sand grains is sunken at the bottom of the pond by gravity, and treatment effect is relatively poor, less employing.The disadvantage of above-mentioned two kinds of setting pots is because organic matter often is attached to sand grain surface, deposits with sand grains.For overcoming above-mentioned shortcoming, adopt following two kinds of forms: aerated grit chamber, it is the side bubbling air in the pond, sewage is advanced along the pond rotation, thereby produce the horizontal constant speed circulation vertical with main flow more.Its feature is by regulating aeration rate, can control the swirl velocity of sewage, make desanding efficiency stable, be subjected to the influence of changes in flow rate less, simultaneously, sewage is played the preaeration effect, and, because sand grains density ratio sewage is big, sand grains is threaded to the outside of eddy flow by centrifugal action, thereby produce spin friction with sewage, the viscosity organic matter that sand grain surface adheres to will be washed in the sewage, reach the purpose of washed-out sand.But since its preaeration effect to sewage, the general less employing of the biological treatment of synchronous denitrification dephosphorizing.
Rotational flow grit chamber is to utilize the waterpower eddy current, and silt particle is separated, and operational effect is good.The operation principle of rotational flow grit chamber is that sewage tangentially enters setting pot, from radially flowing out, stops tens seconds in the pond, paddle at the uniform velocity rotates, and rotating speed is adjustable, to keep the mean flow rate of current 0.3 ~ 0.4m/s in the body of pond, because centrifugal action gets rid of sand grains to pool wall, falls into sand hopper.As shown in Figure 1, be provided for the gas flushing device of washed-out sand in the rotational flow grit chamber 1 and be used for carrying the air-lift device of sand, air-lift device comprises airlift 4 and air lift pipeline 3, airlift 4 is arranged on the bottom of sand hopper, the compressed air that air blast 5 forms is by behind the air lift pipeline 3 bubbling air lifters 4, the sand grains of sand hopper bottom is promoted in the airlift 4 with sewage, and by the sand decline pipeline 6 of carrying that links to each other with airlift 4 sand grains and sewage is delivered to grit water separator 7 processing.Utilizing before air-lift device carries sand, need utilize the gas flushing device that the sand grains that is deposited on the sand hopper bottom is carried out washed-out sand, be attached to its surperficial organic matter to remove, another purpose of washed-out sand is in order to make the deposition sand grains loosening, to be convenient to propose the sand operation.The gas flushing device comprises gas washing pipe road 2, feeds compressed air by air blasts 5 in the gas washing pipe road 2, and its outlet is arranged in the sand hopper, the sand grains in the air douche sand hopper of discharging by outlet.
When the silt particle amount was excessive in the raw sewage, the precipitated mud and sand in the sand hopper had not in time been carried, and made the close knot of precipitated mud and sand together, caused easily that gas dashes, the air lift line clogging.Gas dashes, the cleaning work of silt particle is often because of work under bad environment in the mediation of air lift pipeline and the sand hopper, and equipment dismounting difficulty is big etc., and reason causes rotational flow grit chamber to stop transport for a long time, and mediation and cleaning need manually be lowered to setting pot, wastes time and energy.
The utility model content
At the problem that prior art exists, the gas of rotational flow grit chamber that the purpose of this utility model is to provide a kind of and shortens that gas dashes, do not influence the production run of whole water factory when air-lift device maintenance time, maintenance dashes, air-lift device.
For achieving the above object, the gas of rotational flow grit chamber of the present utility model dashes, air-lift device, wherein, gas dashes, the gas washing pipe road of air-lift device and or the air lift pipeline be provided with the water under high pressure access port.
Further, described gas washing pipe road comprises that gas dashes the gentle back segment pipe that dashes of preceding segment pipe, described gas inserts source of the gas towards the entrance of preceding segment pipe, the outlet that described gas dashes the back segment pipe is arranged in the sand hopper of rotational flow grit chamber, described gas is provided with three-way connection towards gentle the dashing between the segment pipe of back of preceding segment pipe, the first gas washing pipe pipeline joint of described three-way connection, the second gas washing pipe pipeline joint and gas towards the gentle entrance that dashes the back segment pipe of the outlet of preceding segment pipe join gas is dashed before the gentle back segment pipe that dashes of segment pipe be communicated with, the 3rd gas washing pipe pipeline joint of three-way connection is described water under high pressure access port.
Further, described water under high pressure access port seals by plug.
Further, described gas washing pipe road is a homogeneous tube.
Further, the entrance in described gas washing pipe road inserts water under high pressure, and the outlet in gas washing pipe road is arranged in the sand hopper of rotational flow grit chamber.
Further, the entrance in described gas washing pipe road inserts source of the gas, and the outlet in gas washing pipe road is arranged in the sand hopper of rotational flow grit chamber, and gas washing pipe road pars intermedia is provided with pore, and water under high pressure inserts by described pore.
Further, described air lift pipeline comprises the gentle back segment pipe of carrying of the preceding segment pipe of air lift, the entrance of segment pipe inserts source of the gas before the described air lift, the outlet of segment pipe is communicated with the airlift of described air-lift device after the described air lift, gentle the carrying between the segment pipe of back of segment pipe is provided with three-way connection before the described air lift, the first stripping tube pipeline joint of described three-way connection, before the second stripping tube pipeline joint and the air lift entrance of the outlet of segment pipe and air lift back segment pipeline join make air lift before the gentle back segment pipe of carrying of segment pipe be communicated with, the 3rd stripping tube pipeline joint of three-way connection is described water under high pressure access port.
Further, described air lift pipeline is a homogeneous tube, and the entrance of air lift pipeline inserts source of the gas, and the outlet of air lift pipeline is communicated with the airlift of described air-lift device, and air lift pipeline pars intermedia is provided with pore, and water under high pressure inserts by described pore.
Gas of the present utility model dashes, air-lift device need not the maintenance man and is lowered in the setting pot when maintenance, only need to gas dash and or the air lift pipeline feed high pressure water washing, can dilute sand hopper and ducted silt particle, maintenance process does not influence the production run of whole water factory, and shorten maintenance time greatly, alleviated the problem of biochemical reaction tank prodelta clay mud to a certain extent.
Description of drawings
Fig. 1 is for the gas of existing rotational flow grit chamber dashes, the structural representation of air-lift device;
Fig. 2 is that the gas of rotational flow grit chamber of the present utility model dashes, the structural representation of air-lift device;
Fig. 3 is that the gas of the another kind of rotational flow grit chamber of the utility model dashes, the structural representation of air-lift device.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not restriction scopes of the present utility model.
The gas of rotational flow grit chamber of the present utility model dashes, air-lift device, gas dashes, the gas washing pipe road of air-lift device, air lift pipeline at least one are provided with the water under high pressure access port, the silt particle deposition too much causes the close knot of silt particle in sand hopper, influence that gas dashes, during air lift work, connect the filter press backwash pump at water under high pressure access port place, utilize the water under high pressure of backwash pump to wash from top to bottom, will dilute with ducted silt particle in the sand hopper, guarantee that gas dashes, air-lift device can steady operation.This flushing process generally is no more than 30 minutes, has improved operating efficiency greatly, for uninterrupted production provides favourable guarantee.
As shown in Figure 2, gas dashes, the gas washing pipe road of air-lift device comprises that gas dashes the preceding segment pipe 21 gentle back segment pipes 22 that dash, gas connects air blast towards the entrance of preceding segment pipe 21, the compressed air that air blast is generated inserts gas washing pipe road, the outlet that gas dashes back segment pipe 22 is arranged in the sand hopper of rotational flow grit chamber and imbeds in wherein the silt particle mixture, gas is provided with three-way connection 9 towards preceding segment pipe 21 gentle dashing between the segment pipe 22 of back, the first gas washing pipe pipeline joint of three-way connection 9, the second gas washing pipe pipeline joint and gas towards the gentle entrance that dashes back segment pipe 22 of the outlet of preceding segment pipe 21 join gas is dashed before the segment pipe 21 gentle back segment pipes 22 that dash be communicated with, in order to guarantee three-way connection, gas engages closely towards the preceding segment pipe 21 gentle back segment pipes 22 that dash, its place of interconnecting can arrange sealing devices such as sealing gasket, straight up the 3rd gas washing pipe pipeline joint seals with plug when not keeping in repair in the three-way connection 9, when needs overhaul equipment, extract plug, with in the three-way connection 9 straight up the 3rd gas washing pipe pipeline joint be connected with filter press backwash pump 10 by rubber tube 23, pump into water under high pressure by filter press backwash pump 10 to gas washing pipe road, water under high pressure washes gas washing pipe road from top to bottom, on the one hand silt particle in the gas washing pipe road is washed, the water under high pressure of discharging from gas washing pipe road also can wash dilution to the silt particle of close knot the sand hopper on the other hand, to guarantee that the gas flushing device can steady operation.In like manner, air lift pipeline congestion affects air-lift device work for fear of air-lift device, also be provided with the water under high pressure interface on the air lift pipeline, the air lift pipeline comprises the preceding segment pipe 31 of air lift and air lift back segment pipeline 32, the air blast that the entrance of segment pipe 31 also is connected with gas washing pipe road before the air lift links to each other, in gas washing pipe road and air lift pipeline, feed compressed air by same air blast, the outlet of segment pipe 32 is communicated with the airlift of air-lift device after the air lift, be provided with three-way connection 9 equally between segment pipe 31 and the air lift back segment pipeline 32 before the air lift, the first stripping tube pipeline joint of three-way connection 9, the entrance of the outlet of segment pipe 31 and air lift back segment pipeline 32 joins and makes that segment pipe 31 and air lift back segment pipeline 32 are communicated with before the air lift before the second stripping tube pipeline joint and the air lift, straight up the 3rd gas washing pipe pipeline joint seals with plug when not carrying out overhaul of the equipments in the three-way connection 9, when needs overhaul equipment, extract plug, with in the three-way connection 9 straight up the 3rd gas washing pipe pipeline joint be connected with filter press backwash pump 10 by rubber tube 33, pump into water under high pressure by filter press backwash pump 10 to the air lift pipeline, water under high pressure washes the air lift pipeline from top to bottom, on the one hand silt particle in the air lift pipeline is washed, the water under high pressure of discharging from the air lift pipeline also can wash dilution to the silt particle of close knot the sand hopper on the other hand, to guarantee that air-lift device can steady operation.
On gas washing pipe road and air lift pipeline, all be provided with the interface of water under high pressure in the present embodiment, selectively also can be only in gas washing pipe road or the ducted interface that water under high pressure is set of air lift, can the silt particle of close knot in the sand hopper be diluted equally, but need to improve the number of times of maintenance, the regular high pressure water washing that carries out, the pipeline of avoiding the water under high pressure access port is not set causes the silt particle blocking pipe because close knot takes place the silt particle in the sand hopper.In addition, gas washing pipe road and air lift pipeline also can adopt a homogeneous tube, and directly perforate thereon inserts water under high pressure.
As shown in Figure 3, gas dashes, the gas washing pipe road 2 ' of air-lift device, air lift pipeline 3 ' are a homogeneous tube, the entrance of air lift pipeline connects air blast, and the compressed air that air blast is generated inserts air lift pipeline 3 ', and the outlet of air lift pipeline is communicated with the airlift of air-lift device.Washing is adopted in the washed-out sand in gas washing pipe road 2 ' operation, and the entrance in gas washing pipe road 2 ' connects filter press backwash pump 11 and 2 ' inserts water under high pressure to gas washing pipe road, in the time of can washed-out sand gas washing pipe road 2 ' be washed.In addition, the water under high pressure that discharge in gas washing pipe road also can play diluting effect to the silt particle in the sand hopper, solve the silt particle in the sand hopper to a certain extent owing to close knot too much takes place deposition, avoided the obstruction that causes owing to the close knot of silt particle in gas washing pipe road 2 ' and the air lift pipeline 3 '.For fear of when the silt particle amount is excessive in the raw sewage, precipitated mud and sand in the sand hopper is too much, the water under high pressure that discharge in gas washing pipe road can't in time dilute silt particle and the close knot of silt particle that causes causes the air lift line clogging, and the water under high pressure interface an of above-described embodiment can be set at air lift pipeline 3 ' in the present embodiment.
As shown in Figure 1, existing gas dashes, during the air lift line clogging, maintenance need stop this rotational flow grit chamber water inlet, close the Inlet and outlet water gate, by opening atmospheric valve 8 at the bottom of the pond with setting pot emptying, silt particle deposits for a long time in the sand hopper, when packing is excessive, often follow the obstruction of setting pot blow-down pipe, need it be broken up, dilute and extracted out by slush pump with water under high pressure.And emptying process condition of work is very arduous and waste time and energy, and influences the normal operation of water factory.Inflow reduces, and the large amount of sewage of Pai Chuing (mud) also causes secondary pollution to plant area's greening and road simultaneously, needs the labor cleaning, and workload is very big.After the emptying, dismounting helped rotating plasma leaf and connecting pipe at the bottom of the maintenance personal descended the pond again.To gas dash, the air lift pipeline carries out disassembly, cleaning, because the muddy water in the sand hopper can't be emptied completely, service worker is worked in sand hopper and not only need be stood stench, and because of the operating space narrow and small, increased the difficulty of maintenance work, developing result and dismounting, installation quality are difficult to guarantee.The utility model with existing gas dash, the air lift pipeline inserts water under high pressure, utilize water under high pressure realize to gas dash, the flushing of air lift pipeline and loosening to the excessive precipitated mud and sand of packing in the sand hopper, after treating that flushing is finished, precipitated mud and sand still can be discharged from the air lift pipeline, plant area's greening and road is not impacted.
Claims (8)
- The gas of rotational flow grit chamber dash, air-lift device, it is characterized in that, gas dashes, the gas washing pipe road of air-lift device and or the air lift pipeline be provided with the water under high pressure access port.
- 2. gas according to claim 1 dashes, air-lift device, it is characterized in that, described gas washing pipe road comprises that gas dashes the gentle back segment pipe that dashes of preceding segment pipe, described gas inserts source of the gas towards the entrance of preceding segment pipe, the outlet that described gas dashes the back segment pipe is arranged in the sand hopper of rotational flow grit chamber, described gas is provided with three-way connection towards gentle the dashing between the segment pipe of back of preceding segment pipe, the first gas washing pipe pipeline joint of described three-way connection, the second gas washing pipe pipeline joint and gas towards the gentle entrance that dashes the back segment pipe of the outlet of preceding segment pipe join gas is dashed before the gentle back segment pipe that dashes of segment pipe be communicated with, the 3rd gas washing pipe pipeline joint of three-way connection is described water under high pressure access port.
- Gas according to claim 1 dash, air-lift device, it is characterized in that described gas washing pipe road is a homogeneous tube.
- Gas according to claim 3 dash, air-lift device, it is characterized in that the entrance in described gas washing pipe road inserts water under high pressure, the outlet in gas washing pipe road is arranged in the sand hopper of rotational flow grit chamber.
- Gas according to claim 3 dash, air-lift device, it is characterized in that the entrance in described gas washing pipe road inserts source of the gas, the outlet in gas washing pipe road is arranged in the sand hopper of rotational flow grit chamber, gas washing pipe road pars intermedia is provided with pore, and water under high pressure inserts by described pore.
- 6. dash according to each described gas of claim 1-5, air-lift device, it is characterized in that, described air lift pipeline comprises the gentle back segment pipe of carrying of the preceding segment pipe of air lift, the entrance of segment pipe inserts source of the gas before the described air lift, the outlet of segment pipe is communicated with the airlift of described air-lift device after the described air lift, gentle the carrying between the segment pipe of back of segment pipe is provided with three-way connection before the described air lift, the first stripping tube pipeline joint of described three-way connection, before the second stripping tube pipeline joint and the air lift entrance of the outlet of segment pipe and air lift back segment pipeline join make air lift before the gentle back segment pipe of carrying of segment pipe be communicated with, the 3rd stripping tube pipeline joint of three-way connection is described water under high pressure access port.
- According to each described gas of claim 1-5 dash, air-lift device, it is characterized in that, described air lift pipeline is a homogeneous tube, the entrance of air lift pipeline inserts source of the gas, the outlet of air lift pipeline is communicated with the airlift of described air-lift device, air lift pipeline pars intermedia is provided with pore, and water under high pressure inserts by described pore.
- Gas according to claim 6 dash, air-lift device, it is characterized in that described water under high pressure access port seals by plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013815 CN203030054U (en) | 2013-01-10 | 2013-01-10 | Air blasting and air lifting device of rotational flow sand settling tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013815 CN203030054U (en) | 2013-01-10 | 2013-01-10 | Air blasting and air lifting device of rotational flow sand settling tank |
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| Publication Number | Publication Date |
|---|---|
| CN203030054U true CN203030054U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013815 Expired - Lifetime CN203030054U (en) | 2013-01-10 | 2013-01-10 | Air blasting and air lifting device of rotational flow sand settling tank |
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| CN (1) | CN203030054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920315A (en) * | 2013-01-10 | 2014-07-16 | 浦华环保有限公司 | Gas impact and gas stripping apparatus of swirling flow grit chamber |
-
2013
- 2013-01-10 CN CN 201320013815 patent/CN203030054U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920315A (en) * | 2013-01-10 | 2014-07-16 | 浦华环保有限公司 | Gas impact and gas stripping apparatus of swirling flow grit chamber |
| CN103920315B (en) * | 2013-01-10 | 2016-12-28 | 浦华环保股份有限公司 | The gas punching of rotational flow grit chamber, air-lift device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100084 Haidian District Tsinghua Science and technology building, C27, Beijing Patentee after: THUNIP HOLDINGS CO., LTD. Patentee after: Puhua Holding Co., Ltd. Address before: 100084 Haidian District Tsinghua Science and technology building, C27, Beijing Patentee before: THUNIP Holdings Co., Ltd. Patentee before: Ziguang Environmental Protection Co., Ltd. |