CN203079765U - Sewage pretreatment system - Google Patents

Sewage pretreatment system Download PDF

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Publication number
CN203079765U
CN203079765U CN 201320067555 CN201320067555U CN203079765U CN 203079765 U CN203079765 U CN 203079765U CN 201320067555 CN201320067555 CN 201320067555 CN 201320067555 U CN201320067555 U CN 201320067555U CN 203079765 U CN203079765 U CN 203079765U
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module
sewage
sand
water
settling
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CN 201320067555
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董元康
商昌桥
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吴劲松
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Abstract

The utility model relates to a sewage pretreatment system. The sewage pretreatment system is characterized by comprising a sand settling module, a rotary grating module, a settling module, a concentration module, a grid conveying belt, a sand water separation module and a recycling pool module, wherein the sand settling module is connected to washing water; a floating object collecting module is arranged at the front end of a sand settling area of the sand settling module and is used for collecting floating objects under the action of a baffle; the rotary grating module is arranged at the tail end of the sand settling module and is used for filtering out the floating objects and collecting; the sand settling module collects large-grained sand by virtue of the grid conveying belt; small-grained sand is transmitted to the sand water separation module through a pump to perform sand and water separation; the sewage of the floating objects is collected by the rotary grating module and is introduced into the settling module to be collected and treated; the settled sludge and the like are transmitted to the concentration module; and before the sewage passing through the settling module, the sand water separation module and the concentration module is returned to a settling pool, 2/3 water of the recycling pool returns to a household garbage water classification system to be recycled, and 1/3 water of the recycling pool enters a sewage treatment system to be treated. The sewage pretreatment system performs pretreatment on the sewage through the physical process, is environment-friendly and low-carbon, reduces the scale of sewage treatment and can utilize the water resource to the maximum degree.

Description

A kind of pretreatment system for sewage
Technical field
The utility model relates to rubbish wash-down water process field, particularly a kind of pretreatment system for sewage.
Technical background
Domestic refuse is human waste, has people's place that rubbish is just arranged, densely populated place, and rubbish is concentrated.Along with China's rapid development of economy, living standards of the people improve constantly, and urbanization process is constantly accelerated, the urban population sharp increase, and the output of domestic refuse grows with each passing day.The problem of environmental pollution that is caused by domestic refuse is on the rise, and development forms a pair of sharp-pointed contradiction with environment.
Though rubbish just development and environment this to the tip of the iceberg in the big contradiction, huge rubbish group has caused tremendous influence to environment, and this influence directly threatens human survival also enlarging day by day.For this reason, people are making various effort, seek and how to reduce the influence of rubbish to environment, dwindle the contradiction between development, rubbish, the environment three, in the hope of reaching harmonious and depositing common development.
Refuse treatment has the moisture of employing to select system handles rubbish usually, select in the system handles process at moisture, the sewage pre-treatment also is an important step of refuse treatment, be that sewage enters the pre-treatment facility that processing such as traditional precipitation, biology are provided with requirements in water quality according to follow-up processing flow before, be the throat of sewage work, directly affect the effect of utilizing of the investment of Sewage treatment systems and water resources.Then carry out the above-mentioned general pre-treatment before entering concentrated or decentralized wastewater treatment plant for some trade effluent, also need carry out the adjusting of water quality and quantity and handle and some other special pre-treatment, for example neutralize, drag for hair, preliminary sedimentation, preaeration etc. except that needs.If pretreatment technology is not up to standard, cause the grid slag too much, big to follow-up treatment facility loss.
Traditional domestic waste flushing sewage disposal has two kinds, the one, sewage is directly entered Sewage treatment systems, cause the sewage of slight pollution to can not get maximum utilization, and owing to contain silt, floating matter etc. in the sewage often, directly cause the sewage disposal difficulty to strengthen, Sewage treatment systems is numerous and jumbled, and investment increases, the working cost height.Another kind is to enter Sewage treatment systems again after sewage is introduced into pretreatment system, does not have the collection of the reuse of sewage and floating matter, sandstone, can cause the waste of water resources and the increasing of subsequent disposal investment and difficulty equally.
Domestic waste flushing sewage directly enters Sewage treatment systems and can cause the clear water amount of interpolation to increase, and causes the waste of water resources, and the increase of the sewage quantity of subsequent disposal, causes the Sewage treatment systems scale to increase, and investment increases, and working cost increases.
Yet the treatment process of sewage being carried out entering again after the prior art pre-treatment merely Sewage treatment systems earlier also can cause the scale of Sewage treatment systems excessive, invests too highly, and sewage can not get maximum utilization.
Summary of the invention
In order to overcome above defective, the utility model provides the environmental protection low-carbon (LC), has reduced the scale of sewage disposal, the pretreatment system for sewage that water resources is farthest utilized simultaneously.
To achieve these goals, a kind of pretreatment system for sewage of the utility model, it is characterized in that: comprise sand setting module, rotary grid module, precipitation module, concentrate module, grid travelling belt, husky water sepn module, reuse pool module, wherein, described sand setting module inserts rinse water, front end is provided with a floating matter collection module and collects floating matter, and the rear end is provided with described rotary grid module and filters out the suspended substance collection; Described sand setting module is collected the macrobead sandstone by described grid travelling belt, and the small-particle sandstone is sent to described husky water sepn module through pump; By the collection and treatment of precipitation module, the mud that is settled out is in being pumped to described concentrated module via the sewage of described rotary grid module; Before being recycled to settling tank via precipitation module, the sewage that concentrates module, husky water sepn module, 2/3 water of described reuse water module returns reuse in the domestic refuse moisture type systematic, and 1/3 enters Sewage treatment systems handles.
Wherein, preferred version is: comprise that also one concentrates module, the isolating mud of described precipitation module is processed after pump delivery concentrates to the described concentrated module.
Wherein, preferred version is: described sand setting module is set to have the V-structure of constant slope two-stage, comprise first step slope and slope, the second stage, described first step slope is arranged at the flow inlet place makes cross section of fluid channel become big, slope, the second stage is arranged at the end on first slope, and sandstone is flowed in the sand pit of collecting sandstone along slope, the described second stage.
Wherein, preferred version is: described sand setting module comprises that also a plate washer is arranged at the front end in settling pit district, can height up and down, make the degree of depth of baffle plate immersion remain on 50mm, and the pool wall with respect to the settling pit district has an angle, the open communication of described baffle plate side and described receiving tank, the floating matter in the current is collected in the receiving tank by the baffle plate shunting of described inclination.
Wherein, preferred version is: described receiving tank has a grid travelling belt, is arranged in the described receiving tank, and the floating matter that described grid travelling belt is collected described receiving tank shunting transmits.
Wherein, preferred version is: described precipitation module comprises a plurality of combined type settling tank series connection, described each combined type settling tank is set to V-structure, the middle part of described combined type settling tank is provided with water eliminator, current at first enter the advection sedimentation district of described settling tank by described water eliminator through advection, walk around baffle plate subsequently and enter perpendicular stream settling region obliquely by the baffle plate below.
Wherein, preferred version is: described rotary grid module places the ingress of settling tank, and the macrobead suspended substance is tackled by described rotating cylinder grid.
Advantage of the present utility model is: the utility model carries out pre-treatment through physical process to sewage, possesses the environmental protection low-carbon (LC), has reduced the scale of sewage disposal simultaneously, and water resources is farthest utilized.
Description of drawings
Fig. 1 is the structure principle chart of a kind of pretreatment system for sewage of the utility model;
Fig. 2 is the structure principle chart of the sand setting module 11 of a kind of pretreatment system for sewage of the utility model;
Fig. 3 is the sectional view of the sand setting module 11 of a kind of pretreatment system for sewage of the utility model;
Fig. 4 is the structure principle chart of the precipitation module 13 of a kind of pretreatment system for sewage of the utility model.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1: a kind of pretreatment system for sewage 10 of the utility model comprises sand setting module 11, rotary grid module 12, precipitation module 13, concentrates module 18, grid travelling belt 14, husky water sepn module 15, reuse pool module 16, wherein, described sand setting module 11 inserts rinse water, front end one floating matter collection module 17 is collected floating matters, filters out suspended substance via the sewage of described sand setting module 11 through described rotary grid module 12 and collects; Described sand setting module 11 is collected the macrobead sandstone by described grid travelling belt 14, and the transmission from one channel to another of small-particle sandstone is pumped to described husky water sepn module 15; By 13 collection and treatments of precipitation module, the mud that is settled out is sent to described concentrated module 18 and concentrates aftertreatment via the sewage of described rotary grid module 12; Before being recycled to settling tank 13 via precipitation module 13, the sewage that concentrates module 18, husky water sepn module 15,2/3 water of described reuse water module 16 is back to reuse in the domestic refuse moisture type systematic again, and 1/3 enters Sewage treatment systems handles.
Wherein, described precipitation module 13 isolating mud concentrate through being pumped to described concentrated module 18.
As Fig. 2, shown in Figure 3: as described in sand setting module 11 comprise settling pit district 111, baffle plate 112, grid travelling belt 113, described sand setting district 111 is set to have " V " type structure of constant slope two-stage, the sand setting district 111 of described " V " type structure has first step slope 1111 and slope, the second stage 1112, described first step slope 1111 is arranged at the flow inlet place, its best gradient is 3 °, and the length of first step slope 1111 front end runners is no less than 4.5m, makes floating matter can have the competent time to float on the water surface.End cross-sectional area becomes big suddenly before first slope in settling pit district 111, and volume is increased, and flow velocity can reduce before sewage flow to sand setting district 111 like this, slowly entered the settling pit district, was beneficial to sand setting; Described second slope 1112 is arranged at 1114 places, sand pit in sand setting district 111, and its best gradient is 55 °.
Described baffle plate 112 is arranged at settling pit district 111 front ends, can up-down adjustment, the described baffle plate 112 best immersion water surface degree of depth are 50mm, and described baffle plate 112 has angle with respect to the pool wall in settling pit district 111, the floating matter that described angle is beneficial in the current is collected in the receiving tank 1121 by baffle plate 112 shunting of described inclination, be provided with grid travelling belt 113 in the described receiving tank 1121, the floating matter of described receiving tank 121 being collected by described grid travelling belt 113 transmits, described receiving tank 1121 is positioned at the front end in settling pit district 111, has certain slope (not shown) the moisture in the receiving tank 1121 is flowed out.
As shown in Figure 4: described settling tank module 13 comprises a plurality of combined type settling tanks 131 of series connection, described each combined type settling tank 131 is set to V-structure, mud is deposited at the bottom of the pond in V-type pond automatically, being provided with the throw out of sludge pipe at the bottom of pump 135 will be deposited in the pond at the bottom of the described pond takes away, the middle part of described combined type settling tank 131 is provided with water eliminator 132, the effect of described water eliminator 132 is water conservancy diversion, and current are flowed according to predetermined direction.The oblique combined type settling tank 131 that slowly enters of sewage is by flowing obliquely behind the water eliminator 132, this zone forms advection sedimentation district 1341 and water eliminator 132 in the front portion of water eliminator 132 rear portion forms perpendicular stream settling region 1342, thereby form the primary precipitate district 134 of settling tank module 13, in perpendicular stream settling region 1342, water (flow) direction is opposite with the solids precipitation direction, it is held back speed and equates with the current lift velocity, the particle that lift velocity equals settling velocity will be suspended in formation one deck suspended layer in the mixed solution, and the particle that rises is tackled and filtered.When particulate settling velocity during greater than the current lift velocity, particle just can settle down.
The water inlet flow velocity of described precipitation module 13 is 1.3mm/s,, the residence time is 60min, becomes icicle shape in conjunction with the inclined-plane of settling tank 1342 bottoms, icicle shape angle is 45 ° and 60 °, the pre-buried sludge pipe 135 in bottom, top is provided with water eliminator 132, does not touch at the end, immersed depth is 1500mm, the approximate cosine curve of the operating path of sewage in precipitation module 13 makes the mobile distance of current increase like this, and throw out can precipitate effectively.
Principle of work of the present utility model is: sewage at first enters sand setting module 11, but the sand setting module 11 anterior baffle plates 112 that height up and down is set, floating matter can be blocked, and sewage can continue to flow to sand setting module 11, floating matter collection module 111 is set before baffle plate 112 can collects the floating matter that is blocked; Sewage in sand setting module 11, precipitate can weight is bigger sediment deposition under, sandstone are arranged into collection pit, but configuration screening type grid travelling belt 14 screens, the sandstone that particle is bigger are transmitted band and are sent to receiving tank, the less silt of particle is stayed in the sand pit, delivering to husky water sepn module 15 through shell pump separates, separated silt is arranged into receiving tank, before water then is delivered to settling tank, subsequently, sewage through sand setting module 11 enters in the precipitation module 13, before the described precipitation module 13 rotary grid module 12 is set, can collects the organic suspension thing that particle is bigger in the sewage, in the described precipitation module 13 water eliminator 132 is set, the main effect of described water eliminator 132 is water conservancy diversion, described precipitation module 13 operated by rotary motion five lattice, in precipitation module 13, most mud is precipitated to the bottom, take away via pump, sewage enters reuse pool through behind the settling tank.The pretreated water 2/3 of process that enters reuse water module 16 is back to use direct reuse in the domestic refuse moisture type systematic again, and 1/3 enters Sewage treatment systems, thereby finishes whole preprocessing process.
Table 1. domestic refuse flushing sewage via the processing of present embodiment after the water index change
Be not difficult to find out that from above-mentioned table 1 the pretreated sewage of present embodiment reduces the sewage load, under go on foot sewage disposal condition be provided, the entire treatment process all is a physical process, no intermediate product does not have secondary pollution, is the design of typical environmental protection low-carbon (LC).
Advantage of the present utility model is: the utility model carries out pre-treatment through physical process to sewage, possesses the environmental protection low-carbon (LC), has reduced the scale of sewage disposal simultaneously, and water resources is farthest utilized.
The above person is the utility model most preferred embodiment only, is not to be used to limit scope of the present utility model, and all equivalences of being done according to the utility model claim change or modify, and are all the utility model and contain.

Claims (7)

1. pretreatment system for sewage, it is characterized in that: comprise sand setting module, rotary grid module, precipitation module, concentrate module, grid travelling belt, husky water sepn module, reuse pool module, wherein, described sand setting module inserts rinse water, and front end is provided with a floating matter collection module and collects floating matter; Described rotary grid module is arranged at described sand setting module end, filters out suspended substance and collects; Described sand setting module is collected the macrobead sandstone by described grid travelling belt, and the small-particle sandstone is sent to described husky water sepn module through pump and carries out the sand water sepn; By the collection and treatment of precipitation module, the mud that is settled out is sent to described concentrated module and carries out thickening via the sewage of described rotary grid module; Before being recycled to settling tank via precipitation module, the sewage that concentrates module and husky water sepn module, 2/3 water of described reuse pool module is back to reuse in the domestic refuse moisture type systematic again, and 1/3 enters Sewage treatment systems handles.
2. pretreatment system for sewage as claimed in claim 1 is characterized in that: described pretreatment system for sewage comprises that one concentrates module, and the isolating mud of described precipitation module concentrates the back processed via described concentrated module.
3. pretreatment system for sewage as claimed in claim 1, it is characterized in that: described sand setting module is set to have the V-structure of constant slope two-stage, comprise first step slope and slope, the second stage, described first step slope is arranged at the flow inlet place makes the long-pending change of cross section of fluid channel big, slope, the second stage is arranged at the end on first slope, and sandstone is flowed in the sand pit of collecting sandstone along slope, the described second stage.
4. pretreatment system for sewage as claimed in claim 1, it is characterized in that: described sand setting module comprises that also a plate washer is arranged at the front end in settling pit district, described baffle plate can height up and down, make the degree of depth of baffle plate immersion remain on 50mm, and the pool wall with respect to the settling pit district has an angle, the open communication of described baffle plate side and described receiving tank, the floating matter in the current is collected in the receiving tank by the baffle plate shunting of described inclination.
5. pretreatment system for sewage as claimed in claim 4 is characterized in that: described receiving tank has a grid travelling belt, is arranged in the described receiving tank, and the floating matter that described grid travelling belt is collected described receiving tank transmits.
6. pretreatment system for sewage as claimed in claim 1, it is characterized in that: described precipitation module comprises a plurality of combined type settling tank series connection, described each be set to V-structure in conjunction with settling tank, the middle part of described combined type settling tank is provided with water eliminator, current at first enter described settling tank through advection by described water eliminator and precipitate a district, walk around baffle plate subsequently and enter precipitation two districts by the baffle plate below.
7. pretreatment system for sewage as claimed in claim 1 is characterized in that: described rotary grid module places the ingress of settling tank, and the suspended substance that particle diameter is bigger is tackled by described rotating cylinder grid.
CN 201320067555 2013-02-06 2013-02-06 Sewage pretreatment system Active CN203079765U (en)

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Application Number Priority Date Filing Date Title
CN 201320067555 CN203079765U (en) 2013-02-06 2013-02-06 Sewage pretreatment system

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Application Number Priority Date Filing Date Title
CN 201320067555 CN203079765U (en) 2013-02-06 2013-02-06 Sewage pretreatment system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103755108A (en) * 2014-02-20 2014-04-30 王春爱 Municipal wastewater purification treatment method
CN103831292A (en) * 2014-02-19 2014-06-04 江苏日升环保工程有限公司 Fine screening seperator for soil remediation by leaching method
CN111545335A (en) * 2020-05-12 2020-08-18 烟台市牟平区垃圾综合处理有限公司 Garbage hydrolysis method
CN112978967A (en) * 2021-05-11 2021-06-18 中国恩菲工程技术有限公司 Sewage damming and lifting system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103831292A (en) * 2014-02-19 2014-06-04 江苏日升环保工程有限公司 Fine screening seperator for soil remediation by leaching method
CN103755108A (en) * 2014-02-20 2014-04-30 王春爱 Municipal wastewater purification treatment method
CN103755108B (en) * 2014-02-20 2015-06-17 山东飞洋环境工程有限公司 Municipal wastewater purification treatment method
CN111545335A (en) * 2020-05-12 2020-08-18 烟台市牟平区垃圾综合处理有限公司 Garbage hydrolysis method
CN112978967A (en) * 2021-05-11 2021-06-18 中国恩菲工程技术有限公司 Sewage damming and lifting system

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Shenzhen taihexing Environmental Technology Co. Ltd.

Assignor: Wu Jinsong

Contract record no.: 2014440020112

Denomination of utility model: Sewage pretreatment system

Granted publication date: 20130724

License type: Exclusive License

Record date: 20140414

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model