CN204735311U - Multiplexing processing system in landfill soil - Google Patents
Multiplexing processing system in landfill soil Download PDFInfo
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- CN204735311U CN204735311U CN201520419270.6U CN201520419270U CN204735311U CN 204735311 U CN204735311 U CN 204735311U CN 201520419270 U CN201520419270 U CN 201520419270U CN 204735311 U CN204735311 U CN 204735311U
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Abstract
The utility model discloses a multiplexing processing system in landfill soil, wherein, distributing device, first group drum sieve extension and first group air separator are installed according to the preface in the kibbling rear end of large -scale rubbing crusher, second group's drum sieve extension and second group air separator are still installed according to the preface in the rear end of first group drum sieve extension. The beneficial effects are that: equipment cooperation rejection large garbage truck material is handled through multistage screening segmentation, accomplishes the rubbish clearance in the finite time fast, makes the innoxious multiplexing purpose of soil short -term realization. And clearance processed a large amount of corruption are planted soil and can be used to plant the forest, adsorb carbon dioxide, release oxygen, and atmosphere pollution and haze situation can improve, especially land resource is recycled, to ensureing china's arable land red line, has the immensurable strategic importance.
Description
Technical field
The utility model relates to a kind of governing system of refuse landfill, particularly relates to the treatment system of one way of life refuse landfill land reclamation.
Background technology
The refuse disposal method that Present Domestic extensively adopts mainly contains sanitary landfills, burning, compost.China from the later stage eighties 20th century just set up the refuse landfill of specification, these landfill yards have had very large improvement compared with initial storeyard (informal landfill yard), and the pollution in the design for percolate and landfill gas takes corresponding control measure; In construction management, carry out Zoning landfill, compaction in layers, regular earthing etc.Because sanitary landfill method treating capacity is large, strong adaptability, disposable process, do not have residue, convenient management and operating cost is reasonable, therefore it has become the Main Means of China's municipal solid wastes process.Pin and build portion's data, by 2011, China had the house refuse of 73% to adopt landfill disposal.
But, along with the urbanization of China is in progress, early stage existing MSW landfill (closed or by closing landfill yard) and some informal landfill yards of being positioned at suburbs in the past progressively conjugate at present in main city zone, meanwhile, the development progressively along with city is also reached design storage capacity and is progressively transitioned into urban district by existing sanitary filling field.
For Beijing, according to incompletely statistics, about there are nearly thousand informal landfill in Beijing, takes up an area about 20,000 mu, is mainly distributed in other 14 districts outside the district of city four, meanwhile, and the sanitary filling field during Beijing has 16 to run at present.These landfill yards take up an area the gross area and are about 5225 mu, but, along with the sharp increase of population, these landfill yards can not meet the demand in city far away, such as: Pekinese first modernization garbage sanitary filling field all can have the rubbish more than 900 tons to ship to carry out sanitary landfills every day.Built up till now from 1997, at lasting landfill after 15 years, Bei Shenshu does not again hold more rubbish, the garbage mountain after closing is almost equivalent to Jingshan mountain more than two.Beijing has 8 bulky refuse treatment facilities to be in overload operation state, and the highest rate of load condensate reaches 246%.Comprise north god tree, the whole city has 7 garbage sanitary filling fields will fill up closing within the time of 2 to 3 years.
Accordingly, Beijing need continue the new sanitary filling field of continuous construction to meet the needs of urban development.
But landfill yard a series of environment long-term risk problem can not be ignored.Sanitary landfills is often higher to the requirement of addressing, is generally difficult to the site finding each side condition all to meet.Meanwhile, landfill also also exists many environmental problems.Containing a large amount of organic matters in house refuse, after landfill, organic decomposition (and with moisture that rubbish brings) can produce percolate.Anaerobic fermentation process can produce greenhouse effects methane gas.Percolate has the character of high concentration, complicated component, extremely difficult.Containing various heavy in percolate, if toxic metals quarantine measures particularly are wherein improper, can underground be penetrated into, affect underground water source, produce the secondary pollution to periphery.In addition, garbage loading embeading per ton about produces 40-100kg methane gas, the methane gas of unit formula, greenhouse gases effect is 25 times of carbon dioxide, accordingly, developed country, to sanitary landfills, emphasizes to burn the multiple means such as decrement by categorized consumer waste recovery, recycling treatment, classification, reduce the house refuse amount, particularly organic quality that enter sanitary filling field.
Life people in the environment, with air, water, soil for medium, directly can take in human body by respiratory tract, alimentary canal or skin by the harmful waste in environment, people is caused a disease.Discarded objects of some artificial backfills are buried in underground, some of them isolation imperfection, if directly contacted with underground water after water level rises, will cause the pollution of underground water.Landfill yard also very easily causes environmental risk accident, and e.g., fluid seepage, blow-up causes a lot of accident, and release of toxic gas etc. cause personnel's property loss.
What landfill went round and began again take can plough land used in a large number, and these landfill yards are one to waste greatly, particularly in plains region to land resource.
For the governing problem of household refuse landfill sites, also some companies are had to engage in the trial of this respect at present, method includes digs out the rubbish in original soot entirely, after machine screening, part harmless object backfills, and part Recyclable is transported domestic garbage comprehensive treatment plant of district back and made recycling treatment, and part fertile soil is used as forest land fertilizer, utilize the absorption of root system of plant to make its natural degradation, this method is effective.
But above-mentioned trial has two problems of can not ignore: 1) up to the present, this tupe is only at small-sized, small-scale day process tonnage.Really can not reach the multiplexing main purpose of landfill yard.Such as, take up an area 100 mu for one, average landfill depth is the landfill yard of 5 meters, if process 50 tons day, needs just can be disposed for 15 years.This operation for a long time to solve the multiplexing object of landfill yard; 2) due to the fast development of urbanization, city (particularly a line city) urban spraw and population are all sharply expanded, existing landfill yard, or be all positioned at densely populated area with the landfill yard closed, if the landfill yard multiplexing process reaching 15 years is carried out in an area, will produce owing to runing process for a long time to the long-term impact of surrounding enviroment and the serious problems that disturb residents for a long time.
Summary of the invention
Technical problem to be solved in the utility model is, thering is provided a kind of is administer for the higher household refuse landfill sites of City Land Price or informal landfill yard, finally reaches the refuse landfill land reclamation treatment system of the object of the land reclamation of landfill yard.
The technical scheme that the utility model adopts is: a kind of refuse landfill land reclamation treatment system, comprise, giant excavator and supporting mini-excavator, large-scale pulverizer, distributing device, the first series cylinder screening machine, first group of winnowing machine, the second series cylinder screening machine, second group of winnowing machine; The rear end that large-scale pulverizer is pulverized sequentially is provided with distributing device, the first series cylinder screening machine and first group of winnowing machine; The rear end of described first series cylinder screening machine is also sequentially provided with the second series cylinder screening machine and second group of winnowing machine.
The material maximum gauge that described large-scale pulverizer is pulverized is less than 250MM, and the aperture of the first series cylinder screening machine is 150MM, and the aperture of the second series cylinder screening machine discharging is 20MM.
Between described large-scale pulverizer and distributing device, between the first series cylinder screening machine and first group of winnowing machine, between the first series cylinder screening machine and the second series cylinder screening machine, between the second series cylinder screening machine and second group of winnowing machine, all belt conveyer is installed.
Also include a redundancy cylinder round sifter, described redundancy cylinder round sifter and the second series cylinder screening machine are set up in parallel.
The beneficial effects of the utility model are: bulky refuse material is rejected in the cooperation of large excavator and mini-excavator, and pass through equipment and the method for multi-stage screening segment processing, within the limited time, complete garbage-cleaning fast, make soil short-term can realize innoxious multiplexing object.And a large amount of peats that clearing up and processing goes out can be used for planting forest, thus absorbing carbon dioxide, releasing oxygen, atmosphere pollution and the pollution of haze situation can improve; Particularly land resource is reused, and to the arable land red line ensureing China, has immeasurable strategic importance.
Accompanying drawing explanation
Fig. 1 is landfill yard multiplexing process system block diagram;
Fig. 2 is the material balance figure that embodiment 1 garbage loading embeading basic data and waste component mate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
The utility model landfill yard land reclamation is that whole landfill yard is again excavated, clears up, processed, Recyclable reclaims, harmless treatment is as desert treatment greening soil in addition for organic matter, and combustible send garbage incinerating power plant nearby, harmless inorganic building material local use, landfill after packing.Soil after cleaning develops again.
As shown in Figure 1, a kind of refuse landfill land reclamation of the utility model treatment system, comprise, giant excavator and supporting mini-excavator, large-scale pulverizer, distributing device, the first series cylinder screening machine, first group of winnowing machine, the second series cylinder screening machine, second group of winnowing machine; The rear end that large-scale pulverizer is pulverized sequentially is provided with distributing device, the first series cylinder screening machine and first group of winnowing machine; The rear end of described first series cylinder screening machine is also sequentially provided with the second series cylinder screening machine and second group of winnowing machine.The material maximum gauge that large-scale pulverizer is pulverized is less than 250MM, and the diameter of the first series cylinder screening machine is 150MM, and the diameter of the second series cylinder screening machine is 20MM.Between described large-scale pulverizer and distributing device, between the first series cylinder screening machine and first group of winnowing machine, between the first series cylinder screening machine and the second series cylinder screening machine, between the second series cylinder screening machine and second group of winnowing machine, all belt conveyer is installed.
To a processing method for the refuse landfill land reclamation described in claim, comprise the following steps,
A. again excavated by whole landfill yard, giant excavator and supporting mini-excavator isolate large-sized object; Isolated large-sized object is armored concrete, large-scale weaving block and large-scale ribbon;
B. all substances outside all large-sized objects of crusher in crushing;
C. when the stockpile of day output;
D. be sent to distributing device cloth, enter the first series cylinder screening machine sorting;
E. oversize is sent to first group of winnowing machine sorting, and wherein, combustible is packed, brick/watt/stone landfill on the spot;
F. the second series cylinder screening machine is entered to the screenings of step D;
G. magnetic separation is carried out to the screenings of the second series cylinder screening machine, make the fertile soil for soil remediation;
H. second group of winnowing machine sorting is sent to the oversize of the second series cylinder screening machine; Wherein, pneumatic separator screenings, after being equipped with the operation process such as magnetic separation, other Recyclable sortings, become granularity more than 20mm, below 150mm rubble/brick/watt and the broken mixture of glass, can be used for backfilling on the spot; Pneumatic separator oversize, after being equipped with building materials artificial separation, Recyclable sorting, being packaged as can for the combustible of waste incineration station-service.
I. innoxious soil is obtained.
Embodiment 1, as depicted in figs. 1 and 2, on one piece of smooth plot that the interim stockyard of rubbish needed for operation, sieving garbage system layout clean out by the utility model landfill yard land reclamation needs in soot.Building rubbish upside-down mounting place near smooth plot, soot, repair temporary road inside, the product of operation process is transported outward by temporary road.Digging operation will with bull-dozer and excavator supporting.At the initial stage, within the scope of workbench periphery 100m, available bull-dozer from top to bottom, refuse disposal material pushes to the operating point of falling excavator along inclined-plane by layering from high to low.Preresearch estimates, the rubbish near the region about 1/3rd of separation system and disposal amount all can be completed by bull-dozer.After zone line and longer-distance house refuse need adopt excavator excavation, fragmentation, then be delivered to separation system by movable belt conveyor.
At tap point, adopt giant excavator and mini-excavator supporting, first some materials of plant equipment process relative difficulty are separated from house refuse.These materials comprise: large-scale reinforced concrete block and stone, large-scale yarn fabric, the ribbon not easily sheared, etc., and classification process.Afterwards, house refuse forklift is sent into and is all pulverized for the main equipment of the shear design of landfill yard house refuse specially, and the material maximum gauge after pulverizing controls be no more than 250mm, and the material after pulverizing directly forms the stockpile of separation system when day output.
Stockpile house refuse is through belt transport and distributing device cloth, and cloth to the first group screening aperture is the cylinder round sifter sorting of 150mm.By the control in cylinder aperture, the oversize (>150mm) that first series cylinder screening machine sub-elects, main component is larger material, winnowing machine sorting sent into by this material, selection by winnowing be categorized as brick/watt/stone and combustible (comprise yarn fabric, plastics, complete wooden material etc. of not degrading) two class materials.Wherein, after combustible packing, send garbage burning factory process, brick/watt/stone etc. can backfill use on the spot.
First series cylinder screening machine selects two cylinder internal diameters to be 2.5 meters, drum length is the cylinder round sifter of 12 meters, because screening aperture is 150mm, after the material, thickness of cylinder take in, these two equipment can reach process per hour 150 tons, run 20 hours every day, continuously the operation object of 200 days.Its screenings (<150mm), the cylinder round sifter sorting that second group of screening aperture is 20mm is transferred to by transport tape, screenings (<20mm), after the aided processes such as magnetic separation, makes the fertile soil (Nutrition Soil) for soil remediation that granularity is less than below 20mm.
Second series cylinder screening machine selects cylinder internal diameter to be 2.5 meters, drum length is 14 meters, screening aperture is the second series cylinder screening machine of 20mm, second series cylinder screening machine can reach the object of (150-26)=124 per hour ton disposal ability, but, because its screening aperture is 20mm, for getting rid of overhaul, safeguarding the problem that the interruption brought is runed continuously, need add redundance unit in the layout of equipment, this equipment and the second series cylinder screening machine are set up in parallel.Oversize (>20mm) after its sorting, is equipped with the second typhoon optional equipment sorting by this stage material characteristic design.Pneumatic separator screenings, after being equipped with the operation process such as magnetic separation, other Recyclable sortings, become granularity more than 20mm, below 150mm rubble/brick/watt and the broken mixture of glass, can be used for backfilling on the spot.Pneumatic separator oversize, after being equipped with building materials (on a small quantity) artificial separation, Recyclable sorting, being packaged as can for the combustible of waste incineration station-service.
Material balance under this scheme
Material balance need be calculated by the actual sampling component analysis of target landfill yard, but we can be set by the fundamental characteristics of life in China rubbish and provide calculating.
First, table 1 is the basic data of the target landfill yard of the occupation of land 100 mu of a hypothesis, and table 2 is settings of the house refuse component of target landfill yard, and this setting have references to the China's at present component distribution situation of various places house refuse and median of selecting.
The basic data of the target landfill yard of the occupation of land 100 mu that table 1. is supposed
The setting of the house refuse component of table 2. target landfill yard,
According to two groups of data above, Fig. 2 is the material balance figure matched with the utility model technological process calculated according to the treatment characteristic of our equipment.
Can find out according to this material balance, as long as can the disposal ability of support equipment and the ability of continuously operation, 200 process in a few days, one takes up an area the landfill yard of 100 mu, the program can be adopted to be disposed.
For equipment requirement and layout
First, this process program can key point be successfully the disintegrating apparatus of front end, this equipment need ensure: employing giant excavator and mini-excavator supporting, by the large-scale reinforced concrete block of plant equipment process relative difficulty and stone, large-scale yarn fabric, after the ribbon material not easily sheared separates from house refuse, disintegrating apparatus can by disposable for remaining house refuse feeding specially for the shearing of landfill yard house refuse and the main equipment designed all pulverize, equipment need ensure no matter in house refuse containing metal, plastics, rubber or bulk wooden, can easily pulverize, destroy the decadent force easily, sweep away one and be switched to the 250mm specified.
It is worthy of note, domestic many enterprises with the sector that is engaged in, because of without above-mentioned particular design, manufacture, can in day treatment scale (370 tons/time), can can ensure no matter be metal in material and design again, plastics, rubber or bulk wooden can be easily broken equipment, therefore the process program proposed is first by whole for the house refuse excavated, directly be delivered to cylinder round sifter, the plastics of screening bulk out, rubber, woodenly be delivered to large part disintegrating machine (to reduce the tonnage number that need pulverize per hour) again, if the ability that its device processes ability and support equipment are runed continuously is done a Balancing Analysis of Charges by us, will find that this is infeasible.
Claims (3)
1. a refuse landfill land reclamation treatment system, it is characterized in that, comprise, giant excavator and supporting mini-excavator, large-scale pulverizer, distributing device, the first series cylinder screening machine, first group of winnowing machine, the second series cylinder screening machine, second group of winnowing machine; The rear end that large-scale pulverizer is pulverized sequentially is provided with distributing device, the first series cylinder screening machine and first group of winnowing machine; The rear end of described first series cylinder screening machine is also sequentially provided with the second series cylinder screening machine and second group of winnowing machine.
2. refuse landfill land reclamation treatment system according to claim 1, it is characterized in that, the material maximum gauge that described large-scale pulverizer is pulverized is less than 250MM, and the aperture of the first series cylinder screening machine is 150MM, and the aperture of the second series cylinder screening machine discharging is 20MM.
3. refuse landfill land reclamation treatment system according to claim 1, it is characterized in that, between described large-scale pulverizer and distributing device, between first series cylinder screening machine and first group of winnowing machine, between first series cylinder screening machine and the second series cylinder screening machine, between the second series cylinder screening machine and second group of winnowing machine, all belt conveyer is installed.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104907152A (en) * | 2015-06-17 | 2015-09-16 | 中能润达环境工程有限公司 | Treating system for land reclamation of refuse landfill site and treating method |
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| CN104907152A (en) * | 2015-06-17 | 2015-09-16 | 中能润达环境工程有限公司 | Treating system for land reclamation of refuse landfill site and treating method |
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Effective date of registration: 20160825 Address after: 050011, No. 403, block B, Fortune Tower, No. 24, Guang'an Avenue, Changan District, Hebei, Shijiazhuang Patentee after: HEBEI RUNDA ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 100044 No. three Li River Road, Beijing, Haidian District, 39 Patentee before: Zhong Nengrunda Genie et Environnement |