CN102094451B - Backwashing channel structure for percolate guide and drainage system of refuse landfill - Google Patents
Backwashing channel structure for percolate guide and drainage system of refuse landfill Download PDFInfo
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- CN102094451B CN102094451B CN2011100057237A CN201110005723A CN102094451B CN 102094451 B CN102094451 B CN 102094451B CN 2011100057237 A CN2011100057237 A CN 2011100057237A CN 201110005723 A CN201110005723 A CN 201110005723A CN 102094451 B CN102094451 B CN 102094451B
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Abstract
The invention discloses a backwashing channel structure for a percolate guide and drainage system of a refuse landfill. The side wall of an end well is provided with a water inlet and a water outlet in the opposite direction, and a through hole matched with a holeless pipe; a first straight pipe and a second straight pipe are arranged in the end well, and the first straight pipe is positioned above the second straight pipe; the first straight pipe, the second straight pipe and the holeless pipe are communicated through a three-way pipe, and the holeless pipe stretches out of the side wall of the end wall from the through hole to be connected with a collecting pipe of the percolate guide and drainage system; a detachable sealing cover is arranged at the inlet of the first straight pipe; a backwashing guide bent pipe is fixedly arranged in a channel formed by the first straight pipe, the three-way pipe and the holeless pipe; and one end of the backwashing guide bent pipe is arranged in the first straight pipe, and the other end of the backwashing guide bent pipe is arranged in the holeless pipe. Water sprayed by a high-pressure water pipe and a spray head enters the collecting pipe of the percolate guide and drainage system through the backwashing guide bent pipe, so that plugged materials are effectively dispersed by reverse impact force of high-pressure water flow, and a percolate collecting pipeline is prevented from being plugged.
Description
Technical field
The present invention relates to the anti-silt block apparatus of percolate from garbage filling field guide system, especially relate to the backwash channel design of a kind of percolate from garbage filling field guide system.
Background technology
Percolate from garbage filling field guide system is made up of rubble lead layer, french drain, collecting pipe etc.; It is the important component part of refuse landfill pad system; Its effect is to discharge percolate timely and effectively; The head of control on the laying in 30cm, thereby reduce the percolate seepage and guarantee the landfill yard safe operation.Percolate lead layer system took place to become silted up stifled after but the discovery landfill yard moved the several years in the actual engineering.Cause the stifled mechanism of becoming silted up to comprise effects such as physics, biology, chemistry; In guide percolate process, at first can adsorb suspended particulate in coarse granule filter course surface and the leachate collection pipe and form sediment; Acitve organic matter fermentation afterwards forms biomembrane; Then cation generates crust layers such as calcium carbonate, sulfate, causes the minimizing of lead layer pore volume, leachate collection pipe plug plug.The stifled degree of percolate guide system silt is relevant with the percolate circulation, and the closer to the leachate collection pipe, the unit are circulation is big more, and it is stifled serious more to become silted up, and it is the leachate collection pipe that the most serious place is blocked up in silt.In the biomembranous stage of initial formation, the stifled thing that becomes silted up still can wash through the mode of high pressure washing collecting pipe, can avoid forming crust layer
In case biomembrane is completed into, when beginning to generate precipitation of calcium carbonate, this inoranic membrane will be difficult to clean attached in particle surface and the pipe.Percolate guide system becomes silted up to block up and will directly cause percolate water level rising in the landfill yard, makes the head on the bottom liner layer be far longer than design load.The too high stability that reduces junk-heap body of percolate water level has been aggravated the percolate seepage, and everything all makes landfill yard that the possibility that surrounding enviroment pollute is increased greatly.
For guaranteeing the refuse landfill health, move safely and reducing pollution, should consider the stifled problem of the anti-silt of guide system and the stifled problem of how to renovate afterwards of becoming silted up in the landfill yard running in the design phase to surrounding enviroment.First landfill yard that China age Mo in last century builds is because design is backward relatively, generally adopts simple and easy percolate guide system, considers the stifled control of becoming silted up, and causing having the stifled landfill yard that becomes silted up in time to clear up, and it is stifled finally to be become silted up fully.At present, still do not let flushing device get into the channel design of percolate guide system.
Summary of the invention
The purpose of this invention is to provide a kind of percolate from garbage filling field guide system backwash channel design rational in infrastructure, simple to operation, this backwash channel design can let flushing device get into percolate guide system.
For realizing above-mentioned purpose, the technical scheme that the present invention taked is: this percolate from garbage filling field guide system backwash channel design comprises end well, non-perforated pipe, three-way pipe, backwash racecourse bend, first straight tube, second straight tube and detachable seal cover; Be provided with inlet opening and apopore on the sidewall of end well in opposite directions, and also be provided with the through hole that is complementary with non-perforated pipe on the sidewall of end well; First straight tube and second straight tube place in the end well and first straight tube is positioned at the top of second straight tube; First straight tube, second straight tube and non-perforated pipe are communicated with through three-way pipe, and non-perforated pipe stretches out end well from through hole sidewall is connected with the collecting pipe with percolate guide system; The porch of first straight tube is equipped with detachable seal cover; The backwash racecourse bend is fixedly installed in the passage that is formed by first straight tube, three-way pipe and non-perforated pipe, and an end of backwash racecourse bend places in first straight tube, the other end places in the non-perforated pipe.
Further, detachable seal cover according to the invention is made up of bump joint and flange pipe plug, and the said bump joint and first straight tube are tightly connected, and said flange pipe plug is fixedly connected with said bump joint.
Compared with prior art; The beneficial effect that the present invention has is: (1) owing to be fixedly installed in the backwash racecourse bend in the passage that is formed by first straight tube, three-way pipe and non-perforated pipe, and wherein an end of backwash racecourse bend places that first straight tube is interior, the other end places in the non-perforated pipe; In addition; Non-perforated pipe stretches out end well from through hole sidewall is connected with the collecting pipe with percolate guide system; Therefore can let flushing device (for example high-pressure water pipe and shower nozzle) get into the collecting pipe of percolate guide system, thing form the biomembrane stage at first, final calcification is broken up the stifled thing of silt through the mode of high pressure washing collection before forming crust layer thereby can block up in silt.During (2) owing to use; Percolate can form the water seal effect to second straight tube successively after non-perforated pipe of the present invention, second straight tube get into end well; And the removable seal end cap has sealing function to first straight tube; Thereby it is inner when not carrying out backwash, can to avoid air to get into junk-heap body, to keep anaerobic environment in the landfill body, avoids in the landfill gas concentration of methane diluted simultaneously.(3) because end cover is detachable, so can carries out periodic flushing to percolate guide system easily and safeguard, prevent that the silt of guide system is stifled, thereby keep conduit unimpeded, give full play to the effect of percolate in its collection, the white-out junk-heap body.(4) through channel design of the present invention; The reverse impulse force that can effectively utilize High-Pressure Water breaks up the stifled thing that becomes silted up; Avoid the silt of leachate collection pipeline stifled, percolate can in time be got rid of from junk-heap body, reduced the percolate water level in the junk-heap body; Thereby improve the safety and stability of landfill yard, reduce the risk that percolate pollutes underground environment.
Description of drawings
Fig. 1 is the internal structure sketch map of backwash passage of the present invention;
Fig. 2 is the vertical view of Fig. 1;
The scheme of installation of Fig. 3 backwash channel design of the present invention;
Fig. 4 is the backwash view of backwash channel design of the present invention;
Among the figure: 1, end well, 2, non-perforated pipe, 3, three-way pipe, 4, the backwash racecourse bend; 51, first straight tube, 52, second straight tube, 6, detachable seal cover, 71, the inlet opening; 72, apopore, 8, through hole, 9, the collecting pipe of percolate guide system; 10, percolate discharge guiding pipe, 11, the maintenance cat ladder, 12, high-pressure water pipe and shower nozzle.
The specific embodiment
Like Fig. 1, shown in Figure 2, percolate from garbage filling field guide of the present invention system backwash channel design comprises vertical end well 1, non-perforated pipe 2, three-way pipe 3, backwash racecourse bend 4, first straight tube 51, second straight tube 52 and detachable seal cover 6.As shown in Figures 2 and 3; When being applied to backwash channel design of the present invention in the percolate from garbage filling field guide system; Need each end well 1 to be connected successively through a plurality of percolate discharge guiding pipes 10; Wherein, One end of each percolate discharge guiding pipe 10 is connected with the inlet opening 71 of an end well 1, the other end is connected with the apopore 72 of another end well 1, forms structure in one line for making each end well 1 after the series connection, and the inlet opening 71 of each end well 1 needs be located in opposite directions on the sidewall of end well 1 with apopore 72; Non-perforated pipe 2 in addition, also is provided with the through hole 8 that is complementary with non-perforated pipe 2 on the sidewall of end well 1, so that can pass through hole 8 and finally be connected with the collecting pipe 9 of percolate guide system.
As shown in Figure 1, first straight tube 51 and second straight tube 52 place in the end well 1 and first straight tube 51 is positioned at the top of second straight tube 52, and first straight tube 51, second straight tube 52 and non-perforated pipe 2 are communicated with through three-way pipe 3.One end of non-perforated pipe 2 connects the back and stretches out end well 1 from through hole 8 with the horizontal ends of three-way pipe 3.Be installed with detachable seal cover 6 on first straight tube 51, removable seal lid 6 can be with the inlet seal of first straight tube 51.As preferred implementation of the present invention, removable seal lid 6 is made up of bump joint and flange pipe plug, wherein bump joint and first straight tube, 51 sealed attachment, and the flange pipe plug is fixedly connected with bump joint.Backwash racecourse bend 4 is fixedly installed in the passage that is formed by first straight tube 51, three-way pipe 3 and non-perforated pipe 2, and an end of backwash racecourse bend 4 places in first straight tube 51, the other end places in the non-perforated pipe 2.
Like Fig. 1 and shown in Figure 4, maintenance cat ladder 11 can be installed on the sidewall of end well 1, be used for the ordinary maintenance of backwash channel design.
Like Fig. 3 and shown in Figure 4; When being applied to backwash channel design of the present invention in the percolate from garbage filling field guide system; Each end well 1 compartment of terrain is placed the end of percolate guide system french drain; Utilize percolate discharge guiding pipe 10 to connect between each end well 1, make each end well 1 after the connection form structure in one line through inlet opening 71 and apopore 72 close-coupled.In addition, non-perforated pipe 2 is embedded in the compacting clay of end well 1 front end, and the collecting pipe 9 of non-perforated pipe 2 with percolate guide system connected.
Like Fig. 3, shown in Figure 4; In the refuse landfill normal course of operation; Percolate in the junk-heap body gets into non-perforated pipe 2 by the collecting pipe 9 of percolate guide system, flows into end well 1 along second straight tube 52, and the percolate water level in the end well 1 covers the bottom of second straight tube 52 and forms the water seal effect on the one hand; Detachable on the other hand seal cover has sealing function, can prevent that thus air from being got into and being got in the junk-heap body along non-perforated pipe 2 by the porch of first straight tube 51; When the percolate water level in the end well 1 covered the apopore 71 of end well 1, percolate just can get into the percolate storage pond by each end well 1 of flowing through successively of the percolate discharge guiding pipe 10 between the adjacent end well 1 at last.
As shown in Figure 4; After refuse landfill operation a period of time; Effects such as physical sedimentation, biomembrane formation, chemical calcification take place in the fine particle in the percolate in flow process; Just can in the collecting pipe 9 of percolate guide system, form crust layer gradually, before the stifled thing that becomes silted up forms biomembrane stage, final calcification formation crust layer at first, should the collecting pipe 9 of percolate guide system be washed.When needs washed the collecting pipe 9 of percolate guide system, landfill yard should stop to bleed, and causes air to get in the junk-heap body rapidly to prevent to form negative pressuren zone.During flushing; Open detachable seal cover 6; High-pressure water pipe and shower nozzle 12 are put into non-perforated pipe 2 from backwash racecourse bend 4; And the reverse impulse force that utilizes High-Pressure Water makes high-pressure water pipe and shower nozzle 12 move to collecting pipe 9 depths of percolate guide system, shower nozzle to around the inject high pressure current, breaking up the stifled thing that becomes silted up.In order to keep the normal operation of percolate guide system, can formulate the flushing plan of economical rationality, periodic flushing becomes silted up and blocks up the collecting pipe 9 of the most serious percolate guide system, keeps the unimpeded of percolate guide system.
Percolate guide of the present invention system backwash channel design; Its end well 1, non-perforated pipe 2, three-way pipe 3, backwash racecourse bend 4, first straight tube 51, second straight tube 52 and bump joint 6 etc. are generally processed by the HDPE material; Not only be convenient to install and connected but also can anticorrosion, and can adapt to the differential settlement of landfill yard.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (2)
1. a percolate from garbage filling field guide system backwash channel design is characterized in that: comprise end well (1), non-perforated pipe (2), three-way pipe (3), backwash racecourse bend (4), first straight tube (51), second straight tube (52) and detachable seal cover (6); Be provided with inlet opening (71) and apopore (72) on the sidewall of said end well (1) in opposite directions, and also be provided with the through hole (8) that is complementary with non-perforated pipe (2) on the sidewall of end well (1); First straight tube (51) and second straight tube (52) place in the end well (1) and first straight tube (51) is positioned at the top of second straight tube (52); First straight tube (51), second straight tube (52) and non-perforated pipe (2) are communicated with through three-way pipe (3), and non-perforated pipe (2) stretches out end well (1) from said through hole (8) sidewall is connected with the collecting pipe with percolate guide system; The porch of first straight tube (51) is equipped with detachable seal cover (6); Backwash racecourse bend (4) is fixedly installed in the passage that is formed by first straight tube (51), three-way pipe (3) and non-perforated pipe (2), and an end of backwash racecourse bend (4) places in first straight tube (51), the other end places in the non-perforated pipe (2).
2. a kind of percolate from garbage filling field guide according to claim 1 system backwash channel design; It is characterized in that: said detachable seal cover (6) is made up of bump joint and flange pipe plug; Said bump joint and first straight tube (51) sealed attachment, said flange pipe plug is fixedly connected with said bump joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100057237A CN102094451B (en) | 2011-01-12 | 2011-01-12 | Backwashing channel structure for percolate guide and drainage system of refuse landfill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100057237A CN102094451B (en) | 2011-01-12 | 2011-01-12 | Backwashing channel structure for percolate guide and drainage system of refuse landfill |
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| CN102094451A CN102094451A (en) | 2011-06-15 |
| CN102094451B true CN102094451B (en) | 2012-05-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383490B (en) * | 2011-08-24 | 2013-12-18 | 中国水电顾问集团华东勘测设计研究院 | Ground leakage type water tight guiding and removing structure of refuse landfill and construction method thereof |
| CN106745415A (en) * | 2017-03-29 | 2017-05-31 | 青岛理工大学 | A kind of side-hole-type percolate grid device |
| CN110258748B (en) * | 2019-06-27 | 2021-02-19 | 中山市恒辉自动化科技有限公司 | Refuse landfill leachate drainage pipe dredging device |
| CN112317469B (en) * | 2020-10-16 | 2022-10-11 | 中国航发四川燃气涡轮研究院 | Reverse belt cleaning device of integral oil spout house steward of punching press combustion chamber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005000382U1 (en) * | 2005-01-12 | 2005-03-31 | Kress Dieter | Gas wellhead, for sealed landfill refuse dump, emerges with sleeve pipe through concrete filled plastic box |
| CN101016751A (en) * | 2007-03-09 | 2007-08-15 | 傅仲萼 | Shunting drainage method used in treatment leachate of garbage sanitary landfill and rainwater in storeroom |
| CN201679081U (en) * | 2009-11-30 | 2010-12-22 | 北京环境卫生工程集团有限公司四清分公司 | Slope leachate guiding and draining well |
| CN202000459U (en) * | 2011-01-12 | 2011-10-05 | 浙江大学 | Backwash channel structure of percolate guide-discharge system at landfill site |
-
2011
- 2011-01-12 CN CN2011100057237A patent/CN102094451B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005000382U1 (en) * | 2005-01-12 | 2005-03-31 | Kress Dieter | Gas wellhead, for sealed landfill refuse dump, emerges with sleeve pipe through concrete filled plastic box |
| CN101016751A (en) * | 2007-03-09 | 2007-08-15 | 傅仲萼 | Shunting drainage method used in treatment leachate of garbage sanitary landfill and rainwater in storeroom |
| CN201679081U (en) * | 2009-11-30 | 2010-12-22 | 北京环境卫生工程集团有限公司四清分公司 | Slope leachate guiding and draining well |
| CN202000459U (en) * | 2011-01-12 | 2011-10-05 | 浙江大学 | Backwash channel structure of percolate guide-discharge system at landfill site |
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| CN102094451A (en) | 2011-06-15 |
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Effective date of registration: 20170303 Address after: 310022 Hangzhou City, Gongshu District, pro halfway 138-1, room 1, building 101 Patentee after: Hangzhou Environmental Group Co.,Ltd. Address before: 310027 Hangzhou, Zhejiang Province, Xihu District, Zhejiang Road, No. 38, No. Patentee before: Zhejiang University |
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Effective date of registration: 20190515 Address after: 310022 Room 102, No. 138-1 Linbian Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou mountain ridge Power Generation Co., Ltd. Address before: 310022 Room 101, No. 138-1 Linbian Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Environmental Group Co.,Ltd. |