CN105233535A - Horizontal sedimentation tank with sludge pump house - Google Patents
Horizontal sedimentation tank with sludge pump house Download PDFInfo
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- CN105233535A CN105233535A CN201510734474.3A CN201510734474A CN105233535A CN 105233535 A CN105233535 A CN 105233535A CN 201510734474 A CN201510734474 A CN 201510734474A CN 105233535 A CN105233535 A CN 105233535A
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Abstract
The present invention discloses a horizontal sedimentation tank with a sludge pump house. The horizontal sedimentation tank comprises several groups of sedimentation tank units, each of the sedimentation tank units is successively provided with: a water inlet region, a precipitation region, a sludge discharge region for discharging sludge and a water outlet region for discharging precipitated water; a sludge hopper is formed within the sedimentation region, the sludge discharging region is further provided with a sludge discharge groove, one end of which is connected to the sludge hopper, and another end of the sludge discharge groove is connected to a sludge external reflux pump house for external refluxing and a residual sludge pump house for discharging excessive sludge via a sludge discharge pipe. Sludge scrapers for scrapering the sludge are provided within the discharge sludge groove and both sides of an inlet. The horizontal sedimentation tank with the sludge pump house disclosed by the present invention can meet the influent water quality, the water amount change and various override working conditions, and engineer lands and construction costs are saved to the maximum extent.
Description
Technical field
The present invention relates to a kind for the treatment of tank, particularly a kind of horizontal sedimentation tank with mud pump house.
Background technology
Sedimentation basin is a kind of structures that application precipitation removes suspension in water.Sedimentation basin widely uses in the treatment of waste water.Its pattern is a lot, can be divided into flat flow, vertical-flow and radial-flow three kinds by pool inner water flow path direction.
In recent years, because environmental protection standard is to the raising of sewage effluents index request, and Sewage Plant occupation of land controls more and more tighter, how to ensure sedimentation basin effect and sludge reflux concentration, to Sewage Plant, more stably reaching standard operation is most important, if design unreasonable, require and energy saving requirement with regard to being difficult to reach present water outlet.
In addition, Radial Flow Secondary Sedimentation Tank (namely so-called second pond refers to realize the sedimentation basin of secondary precipitation) is taked according to more current Large Sewage Treatment Plants, take up an area larger, management operating is more complicated, especially be more difficult to during maintenance switch, identical for ensureing each pool water level height, to construction and foundation requirement also very high, and the instability of sludge discharging period also causes the shock resistance of each pond poor.Consider the impact of wind direction, the weir load of traditional second pond also can be caused different, thus affect sedimentation basin outlet effect.
Domestic and international many water treatment research institutions have carried out a large amount of research work to second pond specially, have developed some second ponds that are novel, that be suitable for.But along with the maximization of sewage disposal planning, it is intensive that process is taken up an area, the automation for the treatment of process, tradition second pond group number gets more and more, and floor space is increasing, due to factors such as settlement of foundation, can not ensure often to organize that treating capacity is impartial and weir load is consistent, treatment effect can not ensure.In a lot of city, soil has become the bottleneck of various facility development, and a lot of equipment and technology cannot be implemented because floor space is excessive.
Therefore, those skilled in the art be devoted to develop a kind of take up an area compact, energy consumption is low, be convenient to adapt to water yield change, anti-shock loading is strong, grouping maintenance flexibly, the horizontal sedimentation tank of the high band mud pump house of effluent quality requirement.
Summary of the invention
Because the above-mentioned defect of prior art, the invention provides a kind of horizontal sedimentation tank taking up an area compact, that energy consumption is low, the adaptation water yield changes, anti-shock loading is strong, grouping maintenance is flexible, effluent quality is high band mud pump house, it is characterized in that, it comprises some group precipitation pool units, sets gradually in the described sedimentation basin unit of each group: for inputting the inhalant region of the sewage treating after-treatment, the settling zone for mud and water sedimentation layering, the sludge discharging area for spoil disposal and the exhalant region for discharging precipitation water; Sludge bucket is formed in described settling zone, the mud drainage slot that one end is communicated with sludge bucket is also provided with in described sludge discharging area, the other end of described mud drainage slot is connected to one for the mud exteenal reflux pump house and of exteenal reflux for discharging the excess sludge pump house of unnecessary heavy mud respectively by a discharge pipeline again, and described mud exteenal reflux pump house and excess sludge pump house are laid in described inhalant region front end (mud exteenal reflux pump house and excess sludge pump house are respectively arranged with mud external reflux pump and residual sludge pump) respectively; In described mud drainage slot and entrance both sides are respectively equipped with the mud scraper (such as chain slat type mud scraper) for scraping mud.Discharge pipeline in the present embodiment is used for static pressure spoil disposal, and chain slat type mud scraper is commercially.In addition, described mud exteenal reflux pump house and excess sludge pump house are laid in described inhalant region front end respectively, heavy mud can be made to drain with the shortest Distance geometry time on the one hand, the chain slat type mud scraper arranged by sludge discharging area on the other hand, can by mud after discharge pipeline static pressure spoil disposal, scrape into excess sludge pump house with the shortest time, thus decrease operation energy consumption and floor space, mud exteenal reflux and excess sludge discharge can better be realized.
In certain embodiments, described inhalant region is provided with the perforation tracery wall for rectification.By the setting of tracery wall of boring a hole, can control hole mouth flow velocity, thus prevent uneven into water and to the disturbance between settling zone, and then ensure sedimentation effect, avoid short stream and water distribution problem of non-uniform.
In certain embodiments, described exhalant region is provided with effluent weir and outlet conduit, and described outlet conduit porch is provided with and rotates skimming tool and/or slag trap.Be provided with in outlet conduit porch and rotate skimming tool and/or slag trap, scum silica frost that can be floating by the sewage surface after layering is removed, and obtains better second pond treatment effect.
In certain embodiments, described rotation skimming tool is for rotating skimming pipe.Rotation skimming pipe in the present embodiment is commercially.
In certain embodiments, in each described sedimentation basin unit, some partition walls are set, for making every two group of one partition of described sludge bucket.This sedimentation basin can be named like this to realize the grouping maintenance of full pond, thus ensure the normal operation of Sewage Plant.
In certain embodiments, the back-shaped layout of the effluent trough of described exhalant region.Even if back-shaped for effluent trough layout can be realized taking minimum area, also all water outlets can be drawn fast.Can not only lower the bearing load of effluent weir like this, and water outlet is more stable, can not disturbance be produced.
In certain embodiments, the pond type of described sedimentation basin is rectangular configuration.Be more conducive to mud-water separation like this, the adaptation water yield and sludge concentration change feature greatly, make effluent index all stably reach discharging standards.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can be combined, and obtains each preferred embodiment of the present invention.
Beneficial effect of the present invention:
1, the design of second pond of the present invention, to the intensive layout in Sewage Plant general layout, can save floor space, has reduced construction cost greatly; And can according to the change of amount of inlet water, water quality characteristic and environmental condition, flexible adjust operation pattern, can divide into groups to run, overhaul, on raising treatment effect basis, ensure reliability of technology.
2, in addition, the present invention is particularly useful for the conceptual design of Large Sewage Treatment Plant.Large and the shortcoming that energy consumption is high of floor space existing when being dispersed placement that the present invention changes traditional point of many group structures, the uniform water distribution of second pond can not only be played with less floor space, also be convenient to operational management, raw anti-pond sludge reflux more evenly can be configured, greatly reduce the loss of head.
3, the present invention adopts static pressure spoil disposal, and sludge discharge effects is stable, contaminant removal effectiveness is high.In addition, the water inlet of sedimentation basin adopts large resistance water distribution, can evenly realize sedimentation effect.Meanwhile, pool inner water position is constant, and settling zone is in free sedimentation state, adds utilization rate of tank volume, improves utilization rate of equipment and installations.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the understructure plane of the horizontal sedimentation tank of band mud pump house of the present invention.
Fig. 2 is the view along A-A line in Fig. 1.
Fig. 3 is the view along B-B line in Fig. 1.
Fig. 4 is the effluent trough plane structure chart of the back-shaped laying of the present invention.
Description of reference numerals: inlet channel 1, perforation tracery wall 2, sludge bucket 3, discharge pipeline 4, mud drainage slot 5, chain slat type mud scraper 6, gate 7, outlet conduit 8, effluent trough 9, rotation skimming pipe 10, mud exteenal reflux pump house 11, excess sludge pump house 12, effluent weir 13, intercommunicating pore 14, slag trap 15, steel deck-plate 16
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
Embodiment
The object of the invention is to be achieved through the following technical solutions: as shown in Figure 1 to 4, the horizontal sedimentation tank grouping of the band mud pump house that the present embodiment provides arranges some sedimentation basin unit that mutually can be communicated with, can cut off, often organize described sedimentation basin unit be provided with inhalant region for inputting the sewage treating after-treatment successively, for the settling zone of mud, water sedimentation layering, for discharging the sludge discharging area of heavy mud, and the exhalant region of precipitation water for obtaining after discharging layering; Sludge discharging area is provided with the mud drainage slot 5 that one end is communicated with sludge bucket 3, and the other end of mud drainage slot 5 is connected to one for the mud exteenal reflux pump house 11 and of exteenal reflux for discharging the excess sludge pump house 12 of unnecessary heavy mud respectively by discharge pipeline 4 again; The entrance both sides of mud drainage slot 5 be provided with for heavy mud is scraped into chain slat type mud scraper 6, meanwhile, in mud drainage slot 5, be respectively provided with the chain slat type mud scraper 6 for being scraped by heavy mud into discharge pipeline 4.
Inhalant region is also the hybrid reaction district of horizontal sedimentation tank, and former water mixes at this with coagulant, and reacts, and forms floccule body, then enters settling zone.
Due to heavy pond water inlet flow velocity and uniform water distribution, most important to its sedimentation effect, therefore, as shown in FIG. 1 to 3, in order to make to become a mandarin, sewage evenly enters sedimentation basin with stable, and the perforation tracery wall 2 be provided with for rectification at the water inlet end of inhalant region carries out large resistance water distribution.
By the setting of tracery wall 2 of boring a hole, control aperture flow velocity and be not more than 0.15m/s, thus prevent uneven into water and to the disturbance between settling zone, and then ensure sedimentation effect, avoid short stream and water distribution problem of non-uniform.
Each district is provided with the gate 7 for gauge tap.Inhalant region is provided with inlet channel 1, and exhalant region is provided with effluent weir 13 and outlet conduit 8, and outlet conduit 8 porch is provided with and rotates skimming tool (such as rotating skimming pipe 10) and slag trap 15, for removing the floating scum silica frost of the sewage surface after layering.
In addition, the top of sedimentation basin is provided with steel deck-plate 16, such as, and galvanizing clad can steel deck-plate.When Specific construction is laid, mud exteenal reflux pump house 11 and excess sludge pump house 12 can be laid in inhalant region front end.Such one side can make heavy mud drain with the shortest Distance geometry time, the chain slat type mud scraper 6 arranged by sludge discharging area on the other hand, can by mud after discharge pipeline 4 static pressure spoil disposal, scrape into excess sludge pump house 12 with the shortest time, thus decrease operation energy consumption and floor space, mud exteenal reflux and excess sludge discharge can better be realized.
In order to make this sedimentation basin realize the grouping maintenance of full pond and run, some partition walls can be set in each sedimentation basin unit, make every 2 group one partitions of sludge bucket, to realize dividing into groups to close separately.In addition, each partition wall is also provided with the intercommunicating pore 14 for being communicated with current.Even if maintenance, more exchange device, do not affect the normal operation of other sludge discharging area groups yet like this, thus ensure the normal operation of Sewage Plant.
The present invention adopts many triangle effluent weirs, and back-shapedly lays out tank 9.Even if back-shaped for effluent trough 9 layout can be realized taking minimum area, also all water outlets can be drawn fast.Can not only lower the bearing load of effluent weir like this, and water outlet is more stable, can not disturbance be produced.
In addition, each sedimentation basin and water distribution, spoil disposal etc. all adopt the combining form sharing channel, greatly reduce the loss of flood peak, floor space and house-service gas pipe.
Further, the pond type of sedimentation basin also can be designed to rectangular configuration by the present invention.Be more conducive to mud-water separation like this, the adaptation water yield and sludge concentration change feature greatly, and effluent index is all stably up to state standards.
The settlement of sewage handling process of the horizontal sedimentation tank of band mud pump house of the present invention is as follows:
As shown in FIG. 1 to 3, first the operation group number of sedimentation basin unit is regulated according to water yield change, make former water by inlet channel 1 and inlet gate, pass through perforation tracery wall 2 uniform water distribution of irrigation channel distribution and setting again, impartial to ensure often to organize the water yield, thus obtain stable, better sedimentation effect; Then the precipitation water after layering is through outlet conduit 8 and rotate skimming pipe 10, is removed easily by the scum silica frost of precipitation water surface; Finally, all the other deposits such as heavy mud are by own precipitation, scrape into mud drainage slot 5 through chain slat type mud scraper 6, and after discharge pipeline 4 static pressure spoil disposal, be connected to the exteenal reflux sludge pump in mud exteenal reflux pump house 11 and the residual sludge pump in excess sludge pump house 12 respectively through sludge pump, realize the outer row of sludge reflux and unnecessary heavy mud respectively.
The present invention can realize integrated sewage precipitation, sludge reflux, excess sludge discharge, water outlet etc. in one; And can according to the change of amount of inlet water, water quality characteristic and environmental condition, flexible adjust operation pattern, can divide into groups to run, overhaul, on raising treatment effect basis, ensure reliability of technology.
Therefore, the horizontal sedimentation tank of band mud pump house of the present invention, can meet influent quality, the water yield change and variously surmount operating mode, and farthest saved engineering land used and engineering cost.
And the present invention adopts static pressure spoil disposal, sludge discharge effects is stable, contaminant removal effectiveness is high.In addition, the water inlet of sedimentation basin adopts large resistance water distribution, can evenly realize sedimentation effect.Meanwhile, pool inner water position is constant, and settling zone is in free sedimentation state, adds utilization rate of tank volume, improves utilization rate of equipment and installations.
More than describe each preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (4)
1. the horizontal sedimentation tank with mud pump house, it is characterized in that, it comprises some group precipitation pool units, sets gradually in the described sedimentation basin unit of each group: for inputting the inhalant region of the sewage treating after-treatment, the settling zone for mud and water sedimentation layering, the sludge discharging area for spoil disposal and the exhalant region for discharging precipitation water; Sludge bucket is formed in described settling zone, the mud drainage slot that one end is communicated with sludge bucket is also provided with in described sludge discharging area, the other end of described mud drainage slot is connected to one for the mud exteenal reflux pump house and of exteenal reflux for discharging the excess sludge pump house of unnecessary heavy mud respectively by a discharge pipeline again, and described mud exteenal reflux pump house and excess sludge pump house are laid in described inhalant region front end respectively; In described mud drainage slot and entrance both sides are respectively equipped with the mud scraper for scraping mud; Described inhalant region is provided with the perforation tracery wall for rectification; Described exhalant region is provided with effluent weir and outlet conduit, and described outlet conduit porch is provided with and rotates skimming tool and/or slag trap; In each described sedimentation basin unit, some partition walls are set, for making every two group of one partition of described sludge bucket.
2. horizontal sedimentation tank as claimed in claim 3, is characterized in that, described rotation skimming tool is for rotating skimming pipe.
3. horizontal sedimentation tank as claimed in claim 1, is characterized in that, the back-shaped layout of effluent trough of described exhalant region.
4. as the horizontal sedimentation tank in Claims 1 to 4 as described in any one, it is characterized in that, the pond type of described sedimentation basin is rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734474.3A CN105233535A (en) | 2015-11-03 | 2015-11-03 | Horizontal sedimentation tank with sludge pump house |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734474.3A CN105233535A (en) | 2015-11-03 | 2015-11-03 | Horizontal sedimentation tank with sludge pump house |
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| CN105233535A true CN105233535A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510734474.3A Pending CN105233535A (en) | 2015-11-03 | 2015-11-03 | Horizontal sedimentation tank with sludge pump house |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106552445A (en) * | 2016-11-24 | 2017-04-05 | 北京城市排水集团有限责任公司 | A kind of rectangle Zhou Jinzhou goes out second pond and its using method |
| CN115321649A (en) * | 2022-08-19 | 2022-11-11 | 常州大学 | Treatment device and treatment method for black and odorous water body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106552445A (en) * | 2016-11-24 | 2017-04-05 | 北京城市排水集团有限责任公司 | A kind of rectangle Zhou Jinzhou goes out second pond and its using method |
| CN115321649A (en) * | 2022-08-19 | 2022-11-11 | 常州大学 | Treatment device and treatment method for black and odorous water body |
| CN115321649B (en) * | 2022-08-19 | 2024-04-05 | 常州大学 | Black and odorous water body treatment device and treatment method |
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