CN107687642A - It is a kind of to carry out biological dewatered garbage storing hole and its application method - Google Patents
It is a kind of to carry out biological dewatered garbage storing hole and its application method Download PDFInfo
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- CN107687642A CN107687642A CN201710760442.XA CN201710760442A CN107687642A CN 107687642 A CN107687642 A CN 107687642A CN 201710760442 A CN201710760442 A CN 201710760442A CN 107687642 A CN107687642 A CN 107687642A
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- Prior art keywords
- hole
- air
- garbage storing
- air feed
- desiccation
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
Abstract
A kind of the invention belongs to field of domestic garbage treatment carries out biological dewatered garbage storing hole and its application method.Garbage storing hole is divided into discharge zone, drying zone, finished product area, and drying zone is equally divided into 6 independent drying zones;Air duct is installed in drying zone bottom, is covered with cobblestone, forced draft is carried out to the junk-heap body on wind-distributing pipe top using roots blower, storage hole bottom width direction is provided with the gradient, and percolate discharge outlet is arranged to U-shaped sealing structure for water, optimization percolate discharge condition;During rubbish biological desiccation, carry out turning over throwing daily using storage hole garbage grab bucket, strengthen heap body ventilation desiccation, percolate discharge;Desiccation air feed process is 6 days, the moisture content of junk-heap body can be down into 46% or so.It is of the invention safe and reliable, it is stable, the quick desiccation of rubbish in garbage storing hole can be made, its moisture content and adhesive is reduced and improve its calorific value, be easy to the links such as subsequent delivery, burning or cooperative disposal to carry out, and be obviously improved project and obtain economic benefit.
Description
Technical field
It is more particularly to a kind of to carry out biological dewatered garbage storing hole and its make the invention belongs to field of domestic garbage treatment
Use method.
Background technology
The house refuse in China has the characteristics of moisture content is high, averagely more than 55%, individually even as high as 75%, and High water cut
Rate is the main obstruction of domestic rubbish disposal, and high-moisture percentage reduces the calorific value of house refuse, reduces and burns energy regenerating effect
Rate, influence the economy of waste incineration;High-moisture percentage also makes garbage adhesion connection serious, is unfavorable for follow-up sorting or conveying.Therefore,
In order to improve the economic benefit of waste incineration or cement kiln synergic processing project, the feasibility of technique is extended, reduces garbage disposal
Cost before the process procedures such as refuse classification, conveying, burning are carried out, it is necessary to reduce the moisture content of rubbish.
Recent domestic proposes biological drying technology method.Rubbish biological desiccation principle:Under oxygen supply condition of divulging information,
Microorganism in rubbish carries out aerobic respiration using the easily biodegradable organicses contained by rubbish itself, meets that own growth breeds demand
While and discharge big energy, this portion of energy can be such that the temperature in junk-heap body significantly raises, general up to 45 DEG C,
Reach as high as more than 80 DEG C.Meanwhile microbial activities can also activate the irreducible water in rubbish, reduce its bound state, make it
It is more prone to be heated evaporation.Moisture in rubbish is converted into vapor under the heating of biological energy source, by free diffusing and by force
The space that convection current processed enters in junk-heap body, the dry air blasted by blower fan are taken heap body out of, continuously taken off so as to realize
Water desiccation, biological dewatered is a kind of effective desiccation means of energy-conservation.It is biological dewatered it can be appreciated that liter early stage of composting process
Thermophase is general to continue 6-10 days.Usual rubbish biological desiccation needs to build special desiccation workshop, by the rubbish after the completion of desiccation
Rubbish is sent to garbage storing hole and stores and be further processed.
To avoid the discontinuous Jin Changjijin factories amount fluctuation of rubbish from causing garbage burning factory or cement kiln synergic processing project
Influence, it will usually set garbage storing to cheat, store the rubbish of 3-5 days treating capacities, make incinerator or cement kiln stable operation, garbage storing
It is big to cheat floor space.
The content of the invention
Biological dewatered garbage storing hole is carried out it is an object of the invention to provide a kind of and its application method, its feature exist
In garbage storing hole is in turn divided into discharge zone, drying zone, finished product area, and subregion is blank wall subregion or virtual partition, and storage hole top is set
Put driving grab bucket;
Wherein discharge zone is in refuse-unloading mouth side, for receiving the new refuse marched into the arena daily, the stackable amount of marching into the arena on the 1st
Rubbish;
Finished product area is used for the rubbish for depositing desiccation completion, the rubbish of the stackable amount of marching into the arena on the 1st.
The drying zone is biological dewatered by the house refuse progress for entering hole storage, and length direction is averagely divided into 6 air feeds
Area, using virtual partition, the rubbish of each stackable amount of marching into the arena on the 1st in air feed area.
The drying zone bottom is along storage hole width laying air duct, and in pipeline both sides, 45 ° of alternating perforates are made obliquely
For exhaust vent, two air feed tube pitch are 2m, drying zone any point is not more than 1m to the ultimate range of airduct, are avoided that production
Raw supply blind area.
The drying zone is blown using 2 air blowers, is 3 independent air feed area air-supplies per Fans, 6 air feed areas are each
Independent control air feed, the airduct in each air feed area are connected to air blower by a supervisor, and every supervisor is provided with electric control valve, passed through
Electrically operated valve control opening and closing, is independent of each other.
The supporting construction of the air duct uses independent movable supporting, is made of cement or engineering plastics, is positioned over storage
Bottom is cheated, is not connected with storage hole bottom, is avoided that the waterproof construction for destroying storage hole bottom, is also avoided that because being percolated corrosion
Produce bad point.
Storage hole hole bottom paving cobblestone covering air duct, cobblestone thickness degree are higher than more than air duct highest point 0.2m,
Cobblestone level is less than 60mm, up-small and down-big laying with particle diameter.
Storage hole bottom width direction is provided with the gradient, and the relatively low side in bottom is cheated along length side in discharge zone and drying zone
Set up one percolate discharge outlet of every 6 meters of settings, coating stainless steel double-edged fine-toothed comb in discharge outlet.
Discharge zone and the crater wall side opening of the drying zone hole relatively low side in bottom are connected with the water sealed tank on the outside of crater wall, are oozed described
Filtrate discharge outlet forms U-shaped sealing structure for water.
The above-mentioned application method for carrying out biological dewatered garbage storing hole, it is characterised in that comprise the following steps that:
(1) rubbish is discharged into storage hole discharge zone by house refuse transport vehicle, is then grabbed bucket by driving a vehicle by the rubbish of discharge zone
Grab and banked up into drying zone, waste height is controlled in 3.0-4.5m;
(2) air blast desiccation banked up the time as 6 days, is grabbed bucket daily using the driving on storage hole top junk-heap body turning over throwing one
It is secondary, realize the effect of inoculation thalline and loose heap body opening gap;
(3) after the garbage drying time banked up in an air feed subregion reaching 6, by grabbed to storage hole into
Product area stores, and waits the progress of next step processing links;
(4) and then the new refuse of discharge zone is put to the air feed subregion being available to drying zone, whole flow process continues cycling through
Carry out.
Drying zone air supply mode is batch (-type) in the step (2), blower fan continuous running, is by the airduct for storing up hole bottom
Heap body supplies fresh air, each independent air feed area air feed 10min, stops 20min, reciprocation cycle.Vent flow is every cubic metre
Junk-heap body 0.05-0.2m3/min.Heap body needs 1.5kpa blast per high 1m, and 4.5m heap height needs the fan pressure to be
6.75kpa, typically from Roots blower.
Beneficial effects of the present invention are:
(1) the rubbish storage stage of routine is upgraded to the garbage drying stage by the present invention, makes full use of answering for garbage storing hole
Anxious headspace, project is saved and has totally taken up an area, eliminated the construction cost in desiccation workshop, and reduced processing links, can use
In consumer waste incineration project or cement kiln synergic processing house refuse project.
(2) discharge outlet is arranged to U-shaped structure of water seal by the present invention, maintains the internal blast in storage hole using liquid level difference, solves to supply
The problem of local biologic desiccation caused by the short stream of wind is insufficient;Carry out turning over throwing using the garbage grab bucket in storage hole, strengthen the ventilation of heap body
Desiccation is imitated, and is set the gradient by storing up hole bottom, is discharged beneficial to percolate.
(3) the whole desiccation flow of banking up of the present invention is 8, and wherein discharge zone is banked up 1, and ventilation drying zone is banked up 6, is unloaded
Material area is banked up 1, can be achieved for msw water content to be down to about 46% effect.
Brief description of the drawings
Fig. 1 is a kind of to carry out biological dewatered garbage storing hole floor plan;
Fig. 2 is a kind of to carry out biological dewatered garbage storing hole profile;
Reference:1- air blowers, 2- electric control valves, 3- grab buckets, 4- cobblestone layers, 5- air ducts, 6-U type water sealed tanks,
7- percolate discharge outlet, 8- airduct buttresses, 9- leachate collection pools, 10- percolate discharge outlet double-edged fine-toothed combs, I-discharge zone, II-desiccation
Area, III-finished product area.
Embodiment
Biological dewatered garbage storing hole and its application method are carried out the invention provides a kind of, below in conjunction with the accompanying drawings and in fact
Applying example, the present invention is described further.
As shown in Figure 1 a kind of carries out biological dewatered garbage storing hole floor plan, and whole garbage storing hole is individual long
Square storage hole, is divided into discharge zone I, drying zone II, finished product area III in the longitudinal direction.Discharge zone I is in refuse-unloading mouth side, use
In the new refuse that reception is marched into the arena daily;Drying zone II is biological dewatered for the house refuse for entering hole storage to be carried out, and stackable 6
The rubbish of day amount of marching into the arena, length direction are averagely divided into 6 air feed areas, the rubbish of each stackable amount of marching into the arena on the 1st in air feed area again;
Finished product area III, which is used to depositing desiccation, completes rubbish, grabs the rubbish of finished product area by storing up the grab bucket of pit row car and delivers to next processing ring
Section, the rubbish of the stackable amount of marching into the arena on the 1st.
A plurality of air duct 5 is laid along storage hole width in the storage hole bottom of drying zone II, in the 45 ° of friendships obliquely of pipeline both sides
For perforate as exhaust vent, while to avoid producing supply blind area, air feed tube pitch is 2m, makes any point of drying zone II to confession
The ultimate range of airduct 5 is not more than 1m.The respective independent control air feed in 6 air feed areas of drying zone, the air duct in each air feed area
Air blower 1 is connected to by a supervisor, final 6 supervisors are connected to 2 air blowers, and every supervisor is provided with electric control valve 2, passed through
Valve opening and closing controls each air feed area air feed.
As shown in Fig. 2 the supporting construction of air duct 5 uses independent movable buttress 8, it is made of cement or engineering plastics,
Storage hole bottom is positioned over, is not connected with storage hole bottom.Bottom paving cobblestone covering air duct 5 is cheated, the thickness of cobblestone layer 4 need to expire
Foot covering more than air duct highest point 0.2m, the grading particle diameter of cobblestone layer 4 should be less than 60mm, up-small and down-big laying.
Storage hole bottom width direction is provided with the gradient, discharge zone and drying zone cheat the relatively low side in bottom along its length on
One percolate discharge outlet 7 of every 6 meters of settings, coating stainless steel double-edged fine-toothed comb 10 in discharge outlet, bottom crater wall side opening with the outside of crater wall
Water sealed tank is connected, and forms U-shaped sealing structure for water 6, and water sealed tank maintains liquid level to be higher than lower openings peak, junk-heap body height
For 4.5m when, it is necessary to blast be 6.75kpa, water sealed tank maintains liquid level to be at least above lower openings peak 0.7m, can
Pressure 6.86kpa is maintained, can guarantee that heap body supply will not be from the short stream of discharge outlet, further, as long as at lower openings peak
Hydraulic pressure be more than certain altitude junk-heap body need blast, with this solve generally because discharge outlet nearby supply short stream
Caused by local biologic desiccation it is insufficient the problem of.
As shown in figure 1, by U-shaped water sealed tank 6, the dividing wall together with separates percolate with leachate collection pool 9, point
There is a space on partition wall, the percolate in U-shaped water sealed tank 6 enters leachate collection pool 9 by the gap overflow, subsequently into
Water treatment system, liquid level in U-shaped water sealed tank 6 are maintained with this, are ensured liquid level difference.Other settings of storage hole are cheated with conventional spam storage
It is identical.
Embodiment
Waste incineration or the cement kiln synergic processing project that one disposal ability is 300t/d, enter factory's house refuse moisture content
For 55%~70%, unit weight 400kg/m3, embodiment is as follows:
Storage hole is arranged to 64m × 25m rectangle, gross area 1600m2, cheat deep 5m.It is divided into 3 on the length direction of storage hole
Individual area, is followed successively by discharge zone, drying zone, finished product area, and 6 independent air feed areas are divided into wherein desiccation, discharge zone, finished product area and every
Individual independent air feed area is 8m × 25m rectangle, using virtual partition.Each subregion can bank up 300t rubbish, and volume is
750m3, the high 3.75m of heap, every cubic metre of heap body ventilation of drying zone is 0.05m3/min。
Prolong the dn160 air ducts that storage hole width lays 4 root long 23m in the bottom in each independent air feed area of drying zone,
Center spacing is 2m, and drying zone any point can be made to be not more than 1m to the ultimate range of air duct.One end of 4 air ducts is by 1
Root dn200 supervisor is connected to the Roots blower of 2 parallel runnings, and electronic dish valve is set on supervisor, and air blower is placed in storage hole
In the Ventilator Room on top.1 air blower is preceding 3 independent air feed area air blast, and another air blower is latter 3 independent air feed area drums
Wind, blower fan continuous running, it is opened and closed by the electric control valve on each independent air feed area air main, makes each independent air feed area successively
Air feed 10min, stops 20min.
Airduct selects PE100 materials, and Roots blower selects SSR-200A types, and separate unit air feed air quantity is 39.15m3/ min,
Blast is 9.8kpa, power 12.5kw.
Exhaust vent is in the 45 ° of alternating perforates obliquely of air duct both sides, perforate sizePerforate interval 150mm, connection supply
The supervisor of airduct and blower fan is without perforate.
Air duct is held up to centre-height distance hole bottom 0.3m with cement block, and cement block is positioned over storage hole bottom, no
It is connected with storage hole bottom.Whole storage hole hole bottom laying cobblestone layer, thickness 0.6m, covers air duct, cobblestone level
60mm, up-small and down-big laying are should be less than with particle diameter.Cobblestone layer can water conservancy diversion percolate, prevent rubbish block exhaust vent.
In discharge zone and the drying zone hole relatively low side in bottom, 8 1m × 1m square discharge outlet is set, discharge outlet depth 1.2m,
Upper coating stainless steel double-edged fine-toothed comb, storage crater wall outside set 1.2m deep water sealing grooves, and discharge outlet hole passes through opening high bottom 0.5m with water sealed tank
It is connected, forms U-shaped sealing structure for water.Maximum level difference is 0.7m, can maintain pressure 6.86kpa, it is ensured that junk-heap body is highly
During 4.5m, heap body supply will not be from the short stream of discharge outlet.Msw water content after the embodiment drying and other treatment can be down to 46% with
Under.
The present invention is made in junk-heap body using the amount of heat of microorganism aerobic breathing release in junk-heap body in storage hole
Moisture is rapidly converted into vapor under heating, turns over junk-heap body by driving a vehicle to grab bucket to throw daily, strengthens free diffusing and pressure
Convection effects, the dry air that vapor is blasted by blower fan take heap body out of, by setting gentle slope at hole bottom, setting U in discharge outlet
Type sealing structure for water, optimization percolate discharge condition, realizes the fast dewatering desiccation of junk-heap body.
Claims (10)
1. a kind of carry out biological dewatered garbage storing hole, it is characterised in that garbage storing hole is in turn divided into discharge zone, desiccation
Area, finished product area, subregion are blank wall subregion or virtual partition, and storage hole top sets driving grab bucket;Wherein discharge zone is in refuse-unloading
Mouth side, the rubbish of the stackable amount of marching into the arena on the 1st;The rubbish of the stackable amount of marching into the arena on the 1st in finished product area.
2. a kind of biological dewatered garbage storing hole is carried out according to claim 1, it is characterised in that the desiccation head of district
Degree direction is averagely divided into 6 air feed areas, using virtual partition, the rubbish of each stackable amount of marching into the arena on the 1st in air feed area.
3. a kind of biological dewatered garbage storing hole is carried out according to claim 2, it is characterised in that the drying zone bottom
Portion is along storage hole width laying air duct, and two air feed tube pitch are 2m, in the 45 ° of alternating perforate conducts obliquely of pipeline both sides
Exhaust vent.
4. a kind of biological dewatered garbage storing hole is carried out according to claim 2, it is characterised in that the drying zone makes
Blown with 2 air blowers, be 3 independent air feed areas air-supplies per Fans, the respective independent control air feed in 6 air feed areas is each to supply
The air duct in wind area is connected to air blower by a supervisor, and every supervisor is provided with electric control valve, is controlled and is opened and closed by electrically operated valve,
It is independent of each other.
5. a kind of biological dewatered garbage storing hole is carried out according to claim 4, it is characterised in that the air duct
Supporting construction uses independent movable supporting, is made of cement or engineering plastics, is positioned over storage hole bottom, does not connect with storage hole bottom
Connect fixation.
6. a kind of biological dewatered garbage storing hole is carried out according to claim 1, it is characterised in that storage hole hole bottom
Cobblestone covering air duct is spread, cobblestone thickness degree is higher than more than air duct highest point 0.2m, and cobblestone level is less than with particle diameter
60mm, up-small and down-big laying.
7. a kind of biological dewatered garbage storing hole is carried out according to claim 1, it is characterised in that storage hole bottom
Width is provided with the gradient, sets every 6 meters to set one on along its length in the relatively low side of discharge zone and drying zone hole bottom
Individual percolate discharge outlet, coating stainless steel double-edged fine-toothed comb in discharge outlet.
8. a kind of biological dewatered garbage storing hole is carried out according to claim 7, it is characterised in that discharge zone and desiccation
The crater wall side opening of the area hole relatively low side in bottom is connected with the water sealed tank on the outside of crater wall, and U-shaped water is formed in the percolate discharge outlet
Seal structure.
9. a kind of application method for carrying out biological dewatered garbage storing hole described in any one of claim 1-8 claim,
Characterized in that, comprise the following steps that:
(1) house refuse transport vehicle by rubbish be discharged into storage hole discharge zone, then by drive a vehicle grab bucket by the rubbish of discharge zone grab into
Drying zone is banked up, and waste height is controlled in 3.0-4.5m;
(2) air blast desiccation banked up the time as 6 days, real daily using the driving grab bucket on storage hole top by junk-heap body turning and throwing once
Now it is inoculated with the effect of thalline and loose heap body opening gap;
(3) after the garbage drying time banked up in an air feed subregion reaching 6, finished product area is cheated by being grabbed to storage
Storage, wait the progress of next step processing links;
(4) new refuse of discharge zone and then is put to the air feed subregion being available to drying zone, whole flow process continues cycling through progress.
10. the application method according to claim 9 for carrying out biological dewatered garbage storing hole, it is characterised in that described
Drying zone air supply mode is batch (-type) in step (2), each independent air feed area air feed 10min, stops 20min, reciprocation cycle, leads to
Wind flow is every cubic metre of junk-heap body 0.05-0.2m3/min。
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Cited By (7)
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CN108361714A (en) * | 2018-04-28 | 2018-08-03 | 中国城市建设研究院有限公司 | It is a kind of to be used to improve the device and method that municipal solid waste incinerator enters stove refuse thermal value |
CN109051428A (en) * | 2018-08-09 | 2018-12-21 | 烟台润达垃圾处理运营有限公司 | A kind of waste incineration vertical drainage garbage storing hole and storage device |
CN109834105A (en) * | 2018-12-29 | 2019-06-04 | 厦门市环境能源投资发展有限公司 | A kind of process of the quick desiccation of rubbish from cooking |
CN110822435A (en) * | 2019-11-19 | 2020-02-21 | 中车环境科技有限公司 | Pretreatment method before incineration of household garbage |
CN111578633A (en) * | 2020-05-22 | 2020-08-25 | 广西佳尔通环境科技有限公司 | Method for drying by electromagnetic induction heating airflow of cover film |
CN112570417A (en) * | 2020-11-09 | 2021-03-30 | 蓝天众成环保工程有限公司 | Mechanical biological pretreatment method for urban and rural household garbage |
CN112611212A (en) * | 2020-12-08 | 2021-04-06 | 中农新科(苏州)有机循环研究院有限公司 | Quick biological mummification reactor of kitchen garbage |
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CN108361714A (en) * | 2018-04-28 | 2018-08-03 | 中国城市建设研究院有限公司 | It is a kind of to be used to improve the device and method that municipal solid waste incinerator enters stove refuse thermal value |
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CN110822435A (en) * | 2019-11-19 | 2020-02-21 | 中车环境科技有限公司 | Pretreatment method before incineration of household garbage |
CN111578633A (en) * | 2020-05-22 | 2020-08-25 | 广西佳尔通环境科技有限公司 | Method for drying by electromagnetic induction heating airflow of cover film |
CN111578633B (en) * | 2020-05-22 | 2023-11-28 | 广西佳尔通环境科技有限公司 | Airflow drying method by using cover film electromagnetic induction heating |
CN112570417A (en) * | 2020-11-09 | 2021-03-30 | 蓝天众成环保工程有限公司 | Mechanical biological pretreatment method for urban and rural household garbage |
CN112611212A (en) * | 2020-12-08 | 2021-04-06 | 中农新科(苏州)有机循环研究院有限公司 | Quick biological mummification reactor of kitchen garbage |
CN112611212B (en) * | 2020-12-08 | 2022-04-26 | 中农新科(苏州)有机循环研究院有限公司 | Quick biological mummification reactor of kitchen garbage |
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