CN101269853B - Refuse leachate collecting, conveying system for refuse incineration of electric power plant - Google Patents
Refuse leachate collecting, conveying system for refuse incineration of electric power plant Download PDFInfo
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- CN101269853B CN101269853B CN2008100695880A CN200810069588A CN101269853B CN 101269853 B CN101269853 B CN 101269853B CN 2008100695880 A CN2008100695880 A CN 2008100695880A CN 200810069588 A CN200810069588 A CN 200810069588A CN 101269853 B CN101269853 B CN 101269853B
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Abstract
The invention discloses collection and delivery system of garbage seeping liquid in a garbage flaming electric power plant. One side of a garbage storage pit is provided with an underground liquor drainage channel, a walking platform is arranged on the underground liquor drainage channel, a liquor drainage fence is arranged on the pit wall of the garbage storage pit, and the liquor drainage fence discharges the seeping liquid into the underground liquor drainage channel from the garbage storage pit. The underground liquor drainage channel is communicated with the ground through a block discharge in and out channel and is provided with an air regenerating device. A seeping liquid collection pool is communicated with the underground liquor drainage channel, a seeping liquid pump room separating from the seeping liquid collection pool is arranged near the seeping liquid collection pool, and a pipeline of a lifting pump is provided with a back purge mechanism preventing a water fetching head from being blocked. The lifting pump prevents the corrosion and the blocking, and the operation is reliable. The collection and delivery of the seeping liquid can not be the difficulty of troubling the garbage flaming power, the whole system can keep the stable and long-term operation, and avoid the garbage soaking in water for influencing the flaming effect.
Description
Technical field
The present invention relates to collection, the delivery system of oozing drop liquid in a kind of waste incineration power plant refuse pit, belong to the garbage power technical field.
Background technology
Have the characteristics of " minimizing, innoxious, resource utilization " along with rapid development of economy, domestic refuse adopt the health burning method, obtained general approval, the burning city domestic garbage power station is built one after another in China.Because the characteristics that Chinese city domestic refuse ubiquity water ratio is higher, cinder content is high, so in garbage incinerating power plant, for improving refuse thermal value (dehydration back calorific value can improve about 10%), rubbish must dewater through 3～5 days storage period, just be delivered to incinerator by grab bucket and burn, native land man standard requirement rubbish must be stored 3～5 days ability and burn.Simultaneously bigger rubbish storing amount helps the garbage incinerating power plant inspection travel.At present both at home and abroad common way is to establish refuse pit and realize storage to rubbish so not only can reducing floor space underground digging, and is convenient to transport toppling over of the rubbish that comes simultaneously, the refuse pit degree of depth usually below+0.00 terrace-8～15m.
Under+0.00 Horizon in the profound refuse pit, the oozing drop, ooze in discharging, collection and the course of conveying of drop liquid of moisture behind the rubbish storing, the subject matter that is effectively solved at present is exactly that leakage fluid dram exists that foreign material stop up, block clearing inconvenience.This be since ooze drop liquid composition complexity, corrodibility greatly, distributed CH
4, H
2Explosion hazard gases such as S and toxicity are very big, and the blocking cleaning work environment is extremely abominable, and often the personnel safety to the block clearing personnel causes very big threat, cause maintenance block clearing personnel can't in time arrive at the leakage fluid dram block clearing.Simultaneously because ooze drop liquid cinder content height, viscosity is big, mobile poor, suspended substance is more, its also normal alluvial obstruction discharge opeing ditch in the runner after discharge opeing, maintainer Chang Wufa in time arrives desilting.Its consequence is exactly that rubbish in the storage hole is immersed in and oozes in the drop liquid, influences refuse thermal value.
Below+0.00 terrace-lifting, the discharging work of oozing drop liquid in the dell of 8～15m also is very difficult to carry out, owing to there is not better way, normally lift technique (transferpump) is put into and oozed drop liquid under the dell, because liquid corrosion is extremely strong, amount of sludge is very big, and lift technique often damages because of corrosion, perhaps owing to stop up cisco unity malfunction, make and ooze drop liquid and in refuse pit, can't discharge, have a strong impact on the waste incineration effect.There is explosion hazard gas in the drop liquid owing to oozing simultaneously, has the hidden danger of harm facility and personal security.
Summary of the invention
At the prior art above shortcomings; the collection, the delivery system that the purpose of this invention is to provide a kind of waste incineration power plant garbage leachate; this leachate collecting, the easy unimpeded of delivery system, blast protection, protection against corrosion, easily desilting can be protected equipment not oozed the drop corrosion and encroach on.
The object of the present invention is achieved like this: waste incineration power plant garbage leachate is collected, delivery system, comprise refuse pit, it is characterized in that: be provided with the underground discharge opeing gallery adjacent with this side in refuse pit one side, the bottom of underground discharge opeing gallery is lower than the refuse pit bottom; The hole wall that refuse pit is corresponding with underground discharge opeing gallery is provided with the discharge opeing fence, and the discharge opeing fence can enter underground discharge opeing gallery from refuse pit with oozing drop liquid; Underground discharge opeing gallery communicates with ground by the unimpeded access way, and floor outlet is provided with air regenerating device; Native system also comprises the leachate collecting pond that communicates with underground discharge opeing gallery, be provided with on leachate collecting pond next door with the leachate collecting pond isolated be used to place lift pump ooze drop liquid pump room, the water intake of lift pump stretches in the leachate collecting pond.
Described refuse pit bottom is the water conservancy diversion inclined-plane, and the low side on inclined-plane is over against underground discharge opeing gallery, and surface slope is less than 2%.
Described underground discharge opeing gallery wall is provided with the travelling platform for block clearing personnel walking.
Top, described leachate collecting pond is provided with desilting grab bucket and air exhausting device, but the desilting grab bucket is suspended on the supporting beam and left and right sides slippage.
Be provided with the back flushing mechanism that prevents that water intake from stopping up in the pipeline of described lift pump.
Described leachate collecting is provided with the liquid level automatic detection device in the pond, and the liquid level automatic detection device is connected the start and stop with the control lift pump with lift pump.
Compared to existing technology, this leachate collecting, delivery system have following beneficial effect:
1, makes things convenient for block clearing, desilting.The staff can enter underground discharge opeing gallery by the unimpeded access way, and the discharge opeing fence that stops up is dredged, and the mud in the underground discharge opeing gallery can be transferred in the leachate collecting pond, removes easily by the desilting grab bucket again;
2, owing to being provided with air regenerating device underground discharge opeing gallery is taken a breath on ground, be provided with air exhausting device in the leachate collecting pond with above oozing drop liquid pump room, toxic and harmful can be discharged as early as possible, prevents to assemble, avoid explosion hazard, guaranteed underground activities personnel's safety;
3, ad hoc ooze drop liquid pump room with lift pump with ooze drop liquid and effectively isolate, avoided lift pump to be corroded and influenced the risk of works better; The mechanism of back flushing simultaneously can prevent that water intake from stopping up, and guarantees the lift pump works better;
4, the discharge opeing fence can automatically, in time will ooze drop liquid and enters underground discharge opeing gallery from refuse pit, can avoid rubbish to be immersed in water, and garbage dewatering is effective;
5, the setting in leachate collecting pond can be concentrated leachate collecting to a unified place and be handled, and has shock absorption, helps lift pump work, also is convenient to desilting and air draft.
In a word, native system can make the collection of garbage leachate, the hard nut to crack that conveying no longer becomes the puzzlement waste incineration and generating electricity, whole system can keep long-term, stable operation, avoid bubble rubbish and influence the burning effect, and make the obnoxious flavour that oozes the generation of drop liquid can access effective discharge, guaranteed operational outfit and staff's safety.
Description of drawings
Fig. 1-structural representation of the present invention;
Fig. 2-Figure 1A-A sectional view;
Fig. 3-Figure 1B-B sectional view;
Fig. 4-refuse pit of the present invention and underground discharge opeing gallery structural representation;
Fig. 5-discharge opeing fence structure synoptic diagram of the present invention;
Fig. 6-leachate collecting pond air draft layout drawing;
Fig. 7-Fig. 5 vertical view;
Fig. 8-underground discharge opeing gallery send, air draft well plot plan;
Fig. 9-underground discharge opeing gallery send, the exhaust blower plot plan;
Figure 10-underground discharge opeing gallery supply air system figure;
Figure 11-underground discharge opeing gallery exhaust system figure.
Embodiment
Introduce the present invention in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, waste incineration of the present invention power plant garbage leachate is collected, delivery system, comprise orthogonal refuse pit 1, refuse pit 1 wall adopts bolt supporting, refuse pit 1 degree of depth usually below+0.00 terrace-8～15m, be provided with the underground discharge opeing gallery 2 parallel with this side in the dislocation of refuse pit 1 one sides, underground discharge opeing gallery 2 walls are provided with the travelling platform 15 for block clearing personnel walking.The bottom of underground discharge opeing gallery 2 is lower than refuse pit 1 bottom, and the top of underground discharge opeing gallery 2 is both common walls than refuse pit 1 bottom height between underground discharge opeing gallery 2 tops and refuse pit 1 bottom.Underground discharge opeing gallery 2 one ends communicate with ground by unimpeded access way 3, and the unimpeded personnel can enter operation in the underground discharge opeing gallery 2 by unimpeded access way 3.3 outlets of unimpeded access way are provided with the blast apparatus 4 of air intake in unimpeded access way 3, underground discharge opeing gallery 2 the other ends are provided with the wind pipe that leads to ground, the wind pipe outlet is provided with exhaust equipment 5, sees Fig. 8～Figure 11, and label 14 receives the hall for rubbish among Fig. 8.Under the dual function of blast apparatus 4 and exhaust equipment 5, the various obnoxious flavoures in the underground discharge opeing gallery 2 can in time be discharged, and have prevented gathering, have avoided explosion hazard, guarantee block clearing personnel's life security.See Fig. 4 and Fig. 5, refuse pit 1 and underground discharge opeing gallery 2 corresponding hole walls are provided with and can enter the discharge opeing fence 6 of underground discharge opeing gallery automatically from refuse pit with oozing drop liquid, and the fence material can be guaranteed anticorrosion, can be the ceramic-like material.Label 12 is a factory building columns among Fig. 5.
Come out in order to make moisture in the rubbish ooze drop easily, the present invention's refuse pit 1 bottom is set to the water conservancy diversion inclined-plane, and the low side on inclined-plane is over against underground discharge opeing gallery 2.The excessive gradient is unfavorable for garbage grab bucket work, thus in the present embodiment surface slope less than 2%.
Native system comprises that also (oozing drop liquid can be directly by underground discharge opeing gallery 2 inflow leachate collecting pond 7 in the leachate collecting pond 7 that communicates with underground discharge opeing gallery 2, be difficult to mobile mud in the underground discharge opeing gallery 2 and can directly shovel leachate collecting pond 7 by scoop) by the staff, above leachate collecting pond 7, be provided with desilting grab bucket 8 and air exhausting device 9, see Fig. 1, Fig. 6 and Fig. 7, but desilting grab bucket 8 is suspended on the supporting beam and left and right sides slippage.Be provided with on 7 next doors, leachate collecting pond with the leachate collecting pond isolated be used to place lift pump 11 ooze drop liquid pump room 10, ooze in the drop liquid pump room 10 and also be provided with air regenerating device, the water intake of lift pump 11 stretches in the leachate collecting pond 7.Directly do not contact with the drop liquid that oozes of collecting tank 7 interior deep-etchings owing to ooze drop liquid pump room 10, thereby help the operation of personnel in pump house, and can guarantee that the pump housing is not corroded.Be provided with the liquid level automatic detection device in the leachate collecting pond, the liquid level automatic detection device is connected the start and stop with automatic control lift pump with lift pump, and this liquid level automatic detection device is advanced radar level gauging instrument.
Influence the works better of total system in order to prevent lift pump from breaking down, the present invention is provided with three lift pumps 11 simultaneously, and wherein two is stand-by pump.The purpose of desilting grab bucket 8 is that the mud in the leachate collecting pond is in time removed, and stops up lift pump and hardens avoiding.And the purpose of air exhausting device 9 is that the obnoxious flavour of top, leachate collecting pond is discharged equally, blasts to prevent too much gathering.Air exhausting device is located at liftoff about 7 meters high of top, leachate collecting pond.After oozing drop liquid and promoting by lift pump pressurization, through collect, pipeline system drain into ooze drop liquid handle between 13.For the mud that prevents to ooze in the drop liquid stops up lift pump, be provided with the back flushing mechanism that prevents that water intake from stopping up in the pipeline of described lift pump, the interface of back flushing mechanism (water source) is connected with the outdoor pipe network of water supply-drainage discipline.
Because ooze the severe corrosive of drop liquid, refuse pit 1 inwall, leachate collecting pond 7 inwalls all should carry out rotproofing, are provided with three layers usually, concrete is that basic unit, fiber glass epoxy (three cloth, four fat) are sealing coat, and the whole preservative coat of 10mm epoxy mortar is a surface layer.
The discharge opeing fence of this leachate collecting, induction system has the characteristics of anticorrosion, anti-clogging, easy care, underground discharge opeing gallery has easy discharge opeing, blast protection, anticorrosion, the function of easy desilting, leachate collecting pond have the function of blast protection, anticorrosion, easily desilting, easily collecting, conveying. These functions and characteristics are so that native system can make the collection of garbage leachate, the hard nut to crack that conveying no longer becomes the puzzlement waste incineration and generating electricity, can guarantee that whole system keeps long-term, stable operation, avoid bubble rubbish and affect the burning effect, guaranteed operational outfit and staff's safety.
Claims (6)
1. waste incineration power plant garbage leachate collection, delivery system, comprise refuse pit (1), it is characterized in that: be provided with the underground discharge opeing gallery (2) adjacent with this side in refuse pit (1) one side, the bottom of underground discharge opeing gallery (2) is lower than refuse pit (1) bottom; The hole wall that refuse pit (1) is corresponding with underground discharge opeing gallery (2) is provided with discharge opeing fence (6), and discharge opeing fence (6) can enter underground discharge opeing gallery from refuse pit with oozing drop liquid; Underground discharge opeing gallery (2) communicates with ground by unimpeded access way (3), and floor outlet is provided with air regenerating device; Native system also comprises the leachate collecting pond (7) that communicates with underground discharge opeing gallery (2), be provided with on leachate collecting pond (7) next door with the leachate collecting pond isolated be used to place lift pump ooze drop liquid pump room (10), the water intake of lift pump (11) stretches in the leachate collecting pond (7).
2. waste incineration according to claim 1 power plant garbage leachate is collected, delivery system, it is characterized in that: described refuse pit (1) bottom is the water conservancy diversion inclined-plane, and the low side on inclined-plane is over against underground discharge opeing gallery, and surface slope is less than 2%.
3. waste incineration according to claim 1 and 2 power plant garbage leachate is collected, delivery system, and it is characterized in that: described underground discharge opeing gallery (2) wall is provided with the travelling platform (15) for block clearing personnel walking.
4. waste incineration according to claim 3 power plant garbage leachate is collected, delivery system, it is characterized in that: top, described leachate collecting pond (7) is provided with desilting grab bucket (8) and air exhausting device (9), and desilting is grabbed bucket (8) but is suspended on the supporting beam and left and right sides slippage.
5. waste incineration according to claim 1 power plant garbage leachate is collected, delivery system, it is characterized in that: be provided with the back flushing mechanism that prevents that water intake from stopping up in the pipeline of described lift pump.
6. waste incineration according to claim 1 power plant garbage leachate is collected, delivery system, and it is characterized in that: described leachate collecting is provided with the liquid level automatic detection device in the pond, and the liquid level automatic detection device is connected with lift pump to control the start and stop of lift pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100695880A CN101269853B (en) | 2008-04-25 | 2008-04-25 | Refuse leachate collecting, conveying system for refuse incineration of electric power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100695880A CN101269853B (en) | 2008-04-25 | 2008-04-25 | Refuse leachate collecting, conveying system for refuse incineration of electric power plant |
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| Publication Number | Publication Date |
|---|---|
| CN101269853A CN101269853A (en) | 2008-09-24 |
| CN101269853B true CN101269853B (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100695880A Active CN101269853B (en) | 2008-04-25 | 2008-04-25 | Refuse leachate collecting, conveying system for refuse incineration of electric power plant |
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| CN107804885A (en) * | 2017-12-04 | 2018-03-16 | 徐州中矿长安科技有限公司 | A kind of garbage incinerating power plant Leachate site flase floor automatic dredging device |
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Address after: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1 Patentee after: DESIGN INSTITUTE OF CHONGQING IRON & STEEL GROUP Co.,Ltd. Address before: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1 Patentee before: Chongqing Iron and Steel Group Design Institute |
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