CN115823860A - Drying pretreatment system for sorted garbage screening materials - Google Patents
Drying pretreatment system for sorted garbage screening materials Download PDFInfo
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- CN115823860A CN115823860A CN202310113444.5A CN202310113444A CN115823860A CN 115823860 A CN115823860 A CN 115823860A CN 202310113444 A CN202310113444 A CN 202310113444A CN 115823860 A CN115823860 A CN 115823860A
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- 239000000463 material Substances 0.000 title claims abstract description 67
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 37
- 238000001035 drying Methods 0.000 title claims abstract description 19
- 238000012216 screening Methods 0.000 title claims description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 18
- 229920001903 high density polyethylene Polymers 0.000 claims description 13
- 239000004700 high-density polyethylene Substances 0.000 claims description 13
- 239000004746 geotextile Substances 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
The invention discloses a drying pretreatment system for sorted and screened materials of stored garbage according to quality, belonging to the technical field of sorted and screened treatment of stored garbage; it comprises the following steps: a material temporary storage place; a plurality of vent pipelines are distributed at the preset height position of the material temporary storage site, and vent holes are arranged on the inner pipe sections of the vent pipelines; and the air inlets on the outer sides of the sites of the plurality of air ducts are correspondingly connected with a plurality of air outlets of the air splitter, and the air inlets of the air splitter are connected with the air outlets of the air blower. According to the invention, the air blower is used for blowing air to the air vent pipeline arranged in the material for ventilation, and the air in the air vent pipeline enters the material to be dried through the air vent hole, so that the flow of the air in the material is accelerated, the moisture in the pile is rapidly discharged, and the purpose of reducing the moisture content is achieved in a short time.
Description
Technical Field
The invention relates to the technical field of quality-based screening treatment of stored garbage, in particular to a drying pretreatment system for quality-based screening materials of stored garbage.
Background
With the rapid development of urbanization in China and the continuous improvement of environmental awareness of the masses, storage garbage landfill sites more and more located in the urban center or suburbs face the transition treatment, and the mainstream technology of the transition treatment at the present stage is a quality-grading screening technology, which mainly utilizes the principle of physical separation to separate light substances, humus, heavy aggregates and metals in the storage garbage in the landfill sites, is mature, and is successfully applied to a plurality of cases in China. However, the water content of the material is required to be not more than 40%, if the water content of the material is too high, the hole blocking of the screening equipment is easily caused, the separation efficiency and the cleanliness of the separated product are seriously influenced, and therefore the water content of the material needs to be reduced before the material enters the quality-grading screening system.
At the present stage, the mode of directly stacking and airing on the garbage pile or stacking and airing in a workshop is mainly adopted, so that the problem that the time for materials to reach the target water content is long and the overall implementation progress of a project is influenced exists.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a drying pretreatment system for sorted garbage screening materials.
The invention discloses a drying pretreatment system for sorting materials by quality of garbage stocks, which comprises: a material temporary storage place;
a plurality of vent pipelines are distributed at preset height positions of the material temporary storage site, and vent holes are formed in the sections of the interior of the material temporary storage site; and a plurality of air inlets on the outer side of the field of the air duct are correspondingly connected with a plurality of air outlets of the air splitter, and the air inlets of the air splitter are connected with the air outlets of the air blower.
As a further improvement of the invention, the outer side of the short side of the material temporary storage site is provided with an air duct support, the two air duct supports have the same height, semicircular grooves are arranged at preset positions on the air duct supports at intervals, and a plurality of air ducts are horizontally arranged on the air duct supports and are arranged in the semicircular grooves; and one end outside the field of each ventilation pipeline is an air inlet, the other end outside the field is closed, and a plurality of ventilation holes are distributed on the pipe section in the field at intervals.
As a further improvement of the invention, the ventilating pipeline is horizontally arranged at the middle-lower position of the material temporary storage site.
As a further improvement of the present invention, an air inlet pipe joint is prefabricated on the air inlet side of the air splitter, a plurality of air outlet pipe joints are prefabricated on the air outlet side of the air splitter, the blower is connected with the air inlet pipe joint through an air inlet pipe flange, and the ventilation pipeline is connected with the corresponding air outlet pipe joint through an air outlet pipe flange.
As a further improvement of the invention, the air blower is a multistage centrifugal fan, a sound insulation container is arranged outside the air blower, a gas injection pipe joint connected with the gas inlet pipe joint is prefabricated outside the sound insulation container, and the whole air blower is of a skid-mounted structure.
As a further improvement of the invention, the bottom of the material temporary storage place is provided with an anti-seepage system, the periphery of the bottom is provided with a leachate collecting ditch, and the leachate collecting ditch is provided with a grid cover plate.
As a further improvement of the invention, the anti-seepage system comprises a concrete protective layer, a first non-woven geotextile, an HDPE geomembrane, a second non-woven geotextile and a compacted base layer which are arranged in sequence from top to bottom.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the air blower is used for blowing air to the air vent pipeline distributed in the material for ventilation, and the air in the air vent pipeline enters the material to be dried through the air vent hole, so that the flow of the air in the material is accelerated, the moisture in the pile is rapidly discharged, and the purpose of reducing the moisture content is achieved in a short time;
the air blower is of a skid-mounted structure, the gas splitter and the ventilation pipeline are prefabricated, the gas inlet and outlet ends of the gas splitter are connected with the air blower and the ventilation pipeline through flanges, and the whole system is simple in structure, convenient to assemble and disassemble and capable of being repeatedly used for multiple projects.
Drawings
FIG. 1 is a schematic structural diagram of a system for drying and pretreating a garbage inventory by screening materials according to a different quality according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an anti-seepage system of a material temporary storage yard according to an embodiment of the present invention.
In the figure:
1. a blower; 2. a gas splitter; 3. a vent conduit support; 4. an air duct; 5. a material temporary storage place; 6. an air inlet pipe joint; 7. an air outlet pipe joint; 8. an intake pipe flange; 9. an outlet pipe flange; 10. a concrete protective layer; 11. a first nonwoven geotextile; 12. HDPE geomembranes; 13. a second non-woven geotextile; 14. compacting the base layer; 15. and a leachate collecting ditch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the present invention provides a drying pretreatment system for separated screening material of garbage inventory, comprising: the device comprises a blower 1, a gas splitter 2, an air duct support 3, an air duct 4 and a material temporary storage site 5; wherein the content of the first and second substances,
the temporary material storage field 5 is used for storing garbage stocks to be subjected to drying pretreatment, and preferably has the length of 10 to 20m, the width of 20 to 30m and the depth of 1 to 3m. The invention is provided with an anti-seepage system at the bottom of a material temporary storage site 5, as shown in figure 2, the anti-seepage system comprises a concrete protective layer 10, a first non-woven geotextile 11, a HDPE geomembrane 12, a second non-woven geotextile 13 and a compaction foundation layer 14 which are sequentially arranged from top to bottom; the bottom of material temporary storage place 5 is equipped with leachate collection ditch 15 all around, sets up the grid apron on leachate collection ditch 15, and preferred leachate collection ditch 15 is seted up on concrete protection layer 10. Further preferably, the concrete protection layer 10 is a 300mm thick C30 concrete protection layer, the specifications of the first nonwoven geotextile 11 and the second nonwoven geotextile 13 are 600g/m2, the HDPE geomembrane 12 is a 1.0mm double-optical-surface HDPE geomembrane, the leachate collecting ditch 15 is of a reinforced concrete structure, the leachate collecting ditch 15 is 300mm deep, 300mm wide and 200mm thick on the ditch wall, and the grid cover plate is a stainless steel grid cover plate.
The invention is characterized in that an air duct support 3 is respectively arranged on the outer side of the short side of a material temporary storage site 5, and the air duct support 3 is positioned on the outer side of a leachate collecting channel 15; a plurality of horizontal vent pipelines 4 are supported on the vent pipeline support 3, two ends of each vent pipeline 4 are arranged outside the material temporary storage site 5, the middle pipe section is arranged in the material temporary storage site 5, and the vent pipelines 4 are horizontally arranged at the middle-lower position of the material temporary storage site 5; one end of the ventilation pipeline 4 is used as an air inlet, the other end of the ventilation pipeline is closed, and a plurality of circular ventilation holes are uniformly formed in the middle pipe section and used for ventilating the materials in the material temporary storage place 5. Preferably, the ventilating duct support 3 is a reinforced concrete structure, and has a height of 0.5m, a thickness of 0.3-0.5 m and a length of 20m-30m. The two air duct supports 3 are consistent in height, semicircular grooves are formed in the positions, preset at intervals, of the air duct supports 3, and the air ducts 4 are horizontally distributed in the air duct supports 3 and are arranged in the semicircular grooves; preferably, semicircular grooves are formed in the ventilating pipeline support 3 at intervals of 2m, and the diameter of each semicircular groove is 250mm; preferably, the vent line 4 is DN200 stainless steel tubing.
The air inlets at the outer side of the site of a plurality of air ducts 4 are correspondingly connected with a plurality of air outlets of an air splitter 2, and the air inlets of the air splitter 2 are connected with the air outlets of a blower 1. The air blower 1 is a multistage centrifugal fan, a sound insulation container is arranged outside the air blower, a gas injection pipe joint is prefabricated outside the sound insulation container, and preferably, the gas injection pipe joint is a DN400 HDPE gas injection pipe joint with the length of 0.5 m; the blower 1 is of a skid-mounted structure as a whole. The main pipeline of the gas splitter 2 is a DN400 HDPE pipeline, and the length of the pipeline is 10 to 20m; the gas inlet side of the gas splitter 2 is prefabricated with a gas inlet pipe joint 6, the gas outlet side is prefabricated with a plurality of gas outlet pipe joints 7, the gas injection pipe joint of the blower 1 is connected with the gas inlet pipe joint 6 through a gas inlet pipe flange 8, and the vent pipeline 4 is connected with the corresponding gas outlet pipe joint 7 through a gas outlet pipe flange 9. Preferably, the air inlet pipe joint 6 is a DN400 HDPE pipeline, the length of the pipeline is 0.5m, and an HDPE flange joint is arranged at the joint end; the air outlet pipe joint 7 is a DN200 HDPE pipeline, the length of the pipeline is 0.5m, the air outlet pipe joint 7 is arranged at equal intervals, preferably 2m, and the end of the joint is provided with an HDPE flange joint; the stainless steel flange joint reserved at the front end of the vent pipe 4 is connected with the HDPE flange joint reserved at the air outlet pipe joint 7.
The invention provides an installation and construction method of a drying pretreatment system for sorted garbage sorted and screened materials, which comprises the following steps:
s11, firstly, constructing a material temporary storage place 5, wherein an anti-seepage system is arranged at the bottom of the material temporary storage place 5, and leachate collecting ditches 15 are arranged around the material temporary storage place 5; the seepage-proofing system is used for preventing the stored garbage from polluting soil or underground water at the bottom of the temporary storage site 5, and the leachate collecting channel 15 is used for collecting leachate drained in the drying process of the stored garbage.
S12, constructing an air duct support 3 after the construction of the material temporary storage site 5 is completed, wherein the air duct support 3 is arranged on the short side of the material temporary storage site 5 and is positioned outside the leachate collecting channel 15; wherein, breather pipe support 3 is in order to ensure to set up the stability of breather pipe 4 on breather pipe support 3, guarantees simultaneously that breather pipe 4 and 5 ground surfaces in the material place of keeping in have certain spaces, makes the compressed air in the breather pipe 4 can be smooth even get into in the stock rubbish heap body.
S13, after the construction of the vent pipe support 3 is completed, the vent pipe 4 is installed, the vent pipe 4 is placed in a groove formed in the vent pipe support 3, vent holes are uniformly formed in the vent pipe 4, the tail end of the vent pipe 4 is sealed, and the vent pipe is mainly used for enabling air in the vent pipe to be uniformly distributed in stored garbage and accelerating the air flow in the garbage.
S14, after the vent pipe 4 is installed, the gas splitter 2 is installed, and the gas outlet pipe joint 7 in the gas splitter 2 is connected with the vent pipe 4 through the gas outlet pipe flange 9. The gas splitter 2 is mainly used for uniformly splitting the air injected from the blower 1 and ensuring the uniform distribution of the gas in the ventilation pipeline 4.
S15, after the air duct 4 is connected with the gas splitter 2, the air blower 1 is installed, the air blower 1 is skid-mounted equipment and is hoisted to a set position by a crane, and then a gas injection pipeline joint prefabricated by the air blower 1 is connected with a gas inlet pipe joint prefabricated by the gas splitter 2 through a gas inlet pipe flange 8.
The invention provides a drying pretreatment method for sorted and screened materials of stored garbage, which comprises the following steps:
s21, firstly, transporting the garbage stocks to be subjected to drying pretreatment to a material temporary storage site 5, wherein the stacking thickness of the garbage stocks is 1-2m, and ensuring that the ventilation pipeline 4 is positioned at the middle lower part of the garbage pile.
S22, starting the air blower 1, uniformly distributing compressed air generated by the air blower 1 into the vent pipe 4 placed on the vent pipe support 3 through the gas splitter 2, and enabling the compressed air in the vent pipe 4 to enter a garbage storage pile stacked in the material temporary storage site 5 through vent holes formed in the periphery of the vent pipe 4, so that air flow in the garbage storage pile is accelerated, evaporation of moisture on the surface of the garbage storage is accelerated, and the purpose of rapidly reducing the moisture content of the garbage storage is achieved.
S23, detecting the moisture content of the garbage stored in the material temporary storage site 5, and after the moisture content requirement is met, closing the air blower 1 and transferring the stored garbage to a screening equipment system for sorting.
And S24, repeating the steps S21 to S23, and finally realizing the drying pretreatment of all the stored garbage.
The invention has the advantages that:
according to the invention, the air blower is used for blowing air to the air vent pipeline distributed in the material for ventilation, and the air in the air vent pipeline enters the material to be dried through the air vent hole, so that the flow of the air in the material is accelerated, thus the moisture in the form of air in the stack is rapidly discharged, and the purpose of reducing the moisture content is achieved in a short time;
the blower is of a skid-mounted structure, the gas splitter and the ventilation pipeline are prefabricated, the gas inlet and outlet ends of the gas splitter are connected with the blower and the ventilation pipeline through flanges, and the whole system is simple in structure, convenient to assemble and disassemble and capable of being repeatedly used for multiple projects.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a stock rubbish divides matter screening material mummification pretreatment systems which characterized in that includes: a material temporary storage place;
a plurality of vent pipelines are distributed at preset height positions of the material temporary storage site, and vent holes are formed in the sections of the interior of the material temporary storage site; and a plurality of air inlets on the outer side of the field of the air duct are correspondingly connected with a plurality of air outlets of the air splitter, and the air inlets of the air splitter are connected with the air outlets of the air blower.
2. The system for drying and pretreating materials by screening and screening garbage inventory according to claim 1, wherein air duct supports are arranged on the outer sides of the short sides of the material temporary storage yard, the two air duct supports are identical in height, semicircular grooves are formed in the air duct supports at preset intervals, and a plurality of air ducts are horizontally arranged on the air duct supports and are arranged in the semicircular grooves; and one end outside the field of each ventilation pipeline is an air inlet, the other end outside the field is closed, and a plurality of ventilation holes are distributed on the pipe section in the field at intervals.
3. The system for drying and pretreating the material sieved by the quality-divided garbage inventory of claim 2, wherein the ventilating pipeline is horizontally arranged at a middle-lower position of the material temporary storage site.
4. The system for drying and pretreating inventory waste by screening materials according to claim 1, wherein a gas inlet side of the gas splitter is prefabricated with a gas inlet pipe joint, a gas outlet side of the gas splitter is prefabricated with a plurality of gas outlet pipe joints, the blower is connected with the gas inlet pipe joints through gas inlet pipe flanges, and the ventilation pipeline is connected with the corresponding gas outlet pipe joints through gas outlet pipe flanges.
5. The system for drying and pretreating the garbage classified and screened materials as claimed in claim 4, wherein the blower is a multistage centrifugal fan, a sound insulation container is arranged outside the blower, a gas injection pipe joint connected with the gas inlet pipe joint is prefabricated outside the sound insulation container, and the blower is integrally of a skid-mounted structure.
6. The system for drying and pretreating the material sieved by the quality-divided garbage storage of claim 1, wherein an anti-seepage system is arranged at the bottom of the material temporary storage site, leachate collecting ditches are arranged around the bottom of the material temporary storage site, and a grating cover plate is arranged on the leachate collecting ditches.
7. The dry pretreatment system for the material separated by screening on the garbage inventory of claim 6, wherein the anti-seepage system comprises a concrete protective layer, a first non-woven geotextile, a HDPE geomembrane, a second non-woven geotextile and a compacted base layer which are arranged from top to bottom in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310113444.5A CN115823860A (en) | 2023-02-15 | 2023-02-15 | Drying pretreatment system for sorted garbage screening materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310113444.5A CN115823860A (en) | 2023-02-15 | 2023-02-15 | Drying pretreatment system for sorted garbage screening materials |
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| Publication Number | Publication Date |
|---|---|
| CN115823860A true CN115823860A (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310113444.5A Pending CN115823860A (en) | 2023-02-15 | 2023-02-15 | Drying pretreatment system for sorted garbage screening materials |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480628A (en) * | 2013-09-05 | 2014-01-01 | 浙江博世华环保科技有限公司 | Biological dehydration method for garbage |
| CN107755405A (en) * | 2017-09-28 | 2018-03-06 | 杭州萧山锦江绿色能源有限公司 | Garbage drying device and garbage drying method |
| CN111320495A (en) * | 2020-02-28 | 2020-06-23 | 杭州金株环境科技有限公司 | Aerobic composting system |
| CN216460820U (en) * | 2021-11-12 | 2022-05-10 | 杭州科晟能源技术有限公司 | Tunnel kiln type garbage biological drying system |
| CN216745201U (en) * | 2021-06-17 | 2022-06-14 | 广东省建筑设计研究院有限公司 | Drying and homogenizing equipment for screening and reducing materials of stored garbage |
-
2023
- 2023-02-15 CN CN202310113444.5A patent/CN115823860A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480628A (en) * | 2013-09-05 | 2014-01-01 | 浙江博世华环保科技有限公司 | Biological dehydration method for garbage |
| CN107755405A (en) * | 2017-09-28 | 2018-03-06 | 杭州萧山锦江绿色能源有限公司 | Garbage drying device and garbage drying method |
| CN111320495A (en) * | 2020-02-28 | 2020-06-23 | 杭州金株环境科技有限公司 | Aerobic composting system |
| CN216745201U (en) * | 2021-06-17 | 2022-06-14 | 广东省建筑设计研究院有限公司 | Drying and homogenizing equipment for screening and reducing materials of stored garbage |
| CN216460820U (en) * | 2021-11-12 | 2022-05-10 | 杭州科晟能源技术有限公司 | Tunnel kiln type garbage biological drying system |
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