CN211620413U - Household garbage treatment system - Google Patents
Household garbage treatment system Download PDFInfo
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- CN211620413U CN211620413U CN201922336965.9U CN201922336965U CN211620413U CN 211620413 U CN211620413 U CN 211620413U CN 201922336965 U CN201922336965 U CN 201922336965U CN 211620413 U CN211620413 U CN 211620413U
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Abstract
The utility model discloses a household garbage treatment system. This domestic waste processing system includes: the drying device is provided with a household garbage inlet, a first high-temperature medium inlet, a dried household garbage outlet and a dried tail gas outlet; the pyrolysis device is provided with a dry household garbage inlet, a second high-temperature medium inlet, a pyrolysis solid product outlet, a pyrolysis oil gas outlet and a second high-temperature medium outlet, the dry household garbage inlet is connected with the dry household garbage outlet, and the second high-temperature medium outlet is connected with the first high-temperature medium inlet; the post-separation vibrating screen is provided with a pyrolysis solid product inlet, an oversize product outlet and an undersize product outlet, and the pyrolysis solid product inlet is connected with the pyrolysis solid product outlet. The household garbage treatment system can further screen the pyrolysis solid product after garbage pyrolysis, and separate the biochar from other substances, so that the resource utilization level of the household garbage is improved.
Description
Technical Field
The utility model relates to a solid waste handles technical field, particularly, the utility model relates to a domestic waste processing system.
Background
The reduction, resource utilization and harmlessness of the domestic waste treatment are basic principles required to be followed by the solid waste treatment. At present, the treatment modes of the household garbage mainly comprise sanitary landfill, incineration, composting, pyrolysis and other methods. The method for mixing and collecting garbage is adopted in most towns in China at present, and the garbage components are different due to different economic development, technical level, regional natural conditions and social environment of each region. The developed coastal area has high organic content and water content; developed inland cities have high organic matter content, more recoverable matters and low water content; remote, western lag areas and economically undeveloped areas have more inorganic matters and high ash content. In landfills, the absence of pre-sorting can result in contamination of groundwater and soil with harmful or difficult to degrade materials; when the incineration is adopted, the energy consumption of incineration can be increased if the separation of heat value substances is not reduced; when the compost is used for treating garbage, heavy metal substances can pollute soil. Therefore, the domestic garbage treatment process can obtain better treatment effect only by adding the pre-garbage sorting treatment process in each treatment process.
Therefore, regardless of the municipal solid waste treatment method, a waste sorting process is required. The current common garbage sorting process is garbage pre-sorting, and the garbage pre-sorting process has higher early-stage investment cost, but if the garbage pre-sorting technology is adopted, the investment cost is higher, and the later-stage operation cost is increased, so the mode of the garbage sorting technology needs to be changed to reduce the investment of the early-stage cost and the later-stage operation cost.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model discloses an aim at propose domestic waste processing system. This domestic waste processing system can be after the rubbish pyrolysis, further screens the pyrolysis solid product, with biochar and other material separation among them to improve domestic waste's resource utilization level.
In one aspect of the present invention, the utility model provides a domestic waste processing system. According to the utility model discloses an embodiment, this domestic waste processing system includes: the drying device is provided with a household garbage inlet, a first high-temperature medium inlet, a dried household garbage outlet and a dried tail gas outlet; the pyrolysis device is provided with a dry household garbage inlet, a second high-temperature medium inlet, a pyrolysis solid product outlet, a pyrolysis oil gas outlet and a second high-temperature medium outlet, the dry household garbage inlet is connected with the dry household garbage outlet, and the second high-temperature medium outlet is connected with the first high-temperature medium inlet; the post-separation vibrating screen is provided with a pyrolysis solid product inlet, an oversize product outlet and an undersize product outlet, and the pyrolysis solid product inlet is connected with the pyrolysis solid product outlet.
According to the utility model discloses domestic waste processing system at first treats through drying device and handles domestic waste and carry out the drying, detach most moisture wherein, and dry back rubbish gets into the pyrolysis device and carries out the pyrolysis treatment, obtains pyrolysis solid product and pyrolysis oil gas. Wherein, the pyrolysis solid product mainly comprises biochar and bulk materials which can not be pyrolyzed in the garbage. Subsequently, sorting the pyrolysis solid product by a post-sorting vibrating screen to respectively obtain the undersize biochar and the oversize bulk material. The obtained biochar can be used as a soil conditioner or a fertilizer making way or can be sold after treatment, and large substances which cannot be pyrolyzed on a screen can be further recycled and sold for the second time after being treated by heavy metal sorting and the like. Therefore, the utility model discloses a domestic waste processing system is through carrying out "back sorting" after rubbish pyrolysis, can avoid the problem such as traditional rubbish "preceding sorting" land utilization area that the technology caused is big, investment cost is high in earlier stage, later stage cost of labor height to realized the utilization of the product and high-efficient, clean, energy-conserving target, had good economic benefits and environmental protection benefit.
Optionally, the household garbage disposal system further comprises: the first heat supply device is provided with a pyrolysis oil gas inlet, a high-temperature medium outlet and a combustion tail gas outlet, the pyrolysis oil gas inlet is connected with the pyrolysis oil gas outlet, and the high-temperature medium outlet is connected with the first high-temperature medium inlet.
Optionally, the household garbage disposal system further comprises: and the second heat supply device is connected with the second high-temperature medium inlet.
Optionally, the household garbage disposal system further comprises: and the tail gas treatment device is connected with the dry tail gas outlet and the combustion tail gas outlet.
Optionally, screen holes with the aperture size of 50-70 mm are formed in the rear sorting vibrating screen.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a household garbage disposal system according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In one aspect of the present invention, the utility model provides a domestic waste processing system. According to the utility model discloses an embodiment, referring to fig. 1, this domestic waste processing system includes: a drying device 100, a pyrolysis device 200, and a post-sorting device 300.
According to the utility model discloses an embodiment, drying device 100 has domestic waste entry, first high temperature medium entry, dry domestic waste export and dry tail gas export. The drying device 100 is adapted to dry the household garbage to be treated so as to remove most of the moisture in the household garbage to be treated. In some embodiments, the drying device 100 is a drum structure, which can rotate and has a spiral structure inside. According to a specific example of the present invention, the drying device 100 may be a rotary kiln type dryer.
According to the embodiment of the present invention, the drying process can be performed at 200 to 300 ℃, for example, 200 ℃, 250 ℃, 300 ℃, etc. Specifically, the drying treatment may be performed by directly heating the material with a high-temperature medium (e.g., hot air). The high-temperature medium adopted in the drying treatment can be hot air obtained by burning pyrolysis oil gas obtained by pyrolysis of the subsequent household garbage or hot air output by a subsequent pyrolysis device.
According to the utility model discloses an embodiment, pyrolysis device 200 has dry domestic waste entry, second high temperature medium entry, pyrolysis solid product export, pyrolysis oil gas export and the export of second high temperature medium, and pyrolysis device 200 links to each other with drying device 100, and is concrete, and dry domestic waste entry links to each other with the export of dry domestic waste, and the export of second high temperature medium links to each other with first high temperature medium entry. The pyrolysis device 200 is adapted to perform pyrolysis treatment on the dry household garbage to obtain pyrolysis oil gas (a mixture of pyrolysis gas and gaseous tar).
According to the embodiment of the present invention, the pyrolysis treatment can be performed at 500 to 600 ℃, for example, 500 ℃, 550 ℃, 600 ℃, etc. Specifically, the pyrolysis treatment may be performed by directly heating the material with a high-temperature medium (e.g., hot air). In some embodiments, the pyrolysis apparatus 200 is a drum-type structure, which can rotate and has a spiral structure inside.
According to the embodiment of the present invention, the dry domestic garbage outlet of the drying device 100 and the dry domestic garbage inlet of the pyrolysis device 200 are connected to each other through a closed conveying device, such as a screw conveyor.
According to the utility model discloses an embodiment, back is selected separately shale shaker 300 and has pyrolysis solid product entry, oversize export and undersize export, and back is selected separately shale shaker 300 and is linked to each other with pyrolysis device 200, and is concrete, and pyrolysis solid product entry links to each other with pyrolysis solid product export. The post-sorting vibrating screen 300 is suitable for screening solid products obtained by pyrolysis of domestic garbage to respectively obtain undersize biochar and oversize bulk substances. The obtained biochar can be used as a soil conditioner or a fertilizer making way or can be sold after treatment, and large substances which cannot be pyrolyzed on a screen can be further recycled and sold for the second time after being treated by heavy metal sorting and the like.
According to the utility model discloses an embodiment is equipped with the sieve mesh that aperture size is 50 ~ 70mm in the back is selected separately shale shaker 300, and aperture size is preferred 60 mm. Therefore, the sorting effect of the post-sorting vibrating screen on the pyrolysis solid product is better.
According to the utility model discloses an embodiment, refer to fig. 1, the utility model discloses a domestic waste processing system still further includes: the first heating apparatus 400. The first heat supply device 400 is provided with a pyrolysis oil gas inlet, a high-temperature medium outlet and a combustion tail gas outlet, the first heat supply device 400 is connected with the drying device 100 and the pyrolysis device 200, specifically, the pyrolysis oil gas inlet is connected with the pyrolysis oil gas outlet, and the high-temperature medium outlet is connected with the first high-temperature medium inlet. From this, first heating device 400 can utilize the pyrolysis oil gas that domestic waste pyrolysis obtained to burn, obtains high temperature medium (hot-blast), and then sends this high temperature medium to drying device in and be used for drying process. The specific type of the first heating apparatus 400 is not particularly limited, and a hot blast stove or the like which is commonly used in the art may be used.
According to the utility model discloses an embodiment, refer to fig. 1, the utility model discloses a domestic waste processing system still further includes: the second heating apparatus 500. The second heat supply means 500 is connected to the pyrolysis apparatus 200, and specifically, the second heat supply means 500 is connected to the second high-temperature medium inlet. The second heat supply device 500 may obtain a high-temperature medium (hot air) by burning an external fuel (e.g., diesel), and further send the high-temperature medium to the pyrolysis device 200 for pyrolysis treatment, and then further send the high-temperature medium to the drying device 100 for drying treatment. This can further improve the heat utilization efficiency of the system. The specific type of the second heating apparatus 500 is not particularly limited, and a hot blast stove or the like commonly used in the art may be used.
According to the utility model discloses an embodiment, refer to fig. 1, the utility model discloses a domestic waste processing system still further includes: tail gas processing apparatus 600. Tail gas processing apparatus 600 links to each other with drying device 100 and first heat supply unit 400, and is concrete, and tail gas processing apparatus 600 links to each other with drying device 100's dry tail gas export and first heat supply unit 400's burning tail gas export, and is suitable for and discharges up to standard after handling dry tail gas and burning tail gas. Specifically, the tail gas treatment device can cool, remove dust, acid and pollution factors (NOx and SO) from the tail gas of the system2Suspended particulate matter, etc.), which may include a cloth bagA dust remover, a water scrubber, an alkali scrubber and other common tail gas treatment equipment in the field.
According to the utility model discloses an embodiment, refer to fig. 1, the utility model discloses a domestic waste processing system can also further include: the biochar bin 700. The biochar bin 700 is connected with the rear sorting vibrating screen 300, and specifically, the biochar bin 700 is connected with an undersize outlet of the rear sorting vibrating screen 300 and is suitable for storing biochar obtained by undersize sorting of the sorting vibrating screen 300.
For the convenience of understanding, the household garbage disposal method implemented by the household garbage disposal system of the present invention is described below. According to the embodiment of the utility model, this domestic waste treatment method includes: supplying the household garbage to be treated into a drying device for drying treatment to obtain dried household garbage and dried tail gas; supplying the dried domestic garbage into a pyrolysis device for pyrolysis treatment to obtain a pyrolysis solid product and pyrolysis oil gas; and feeding the pyrolysis solid product to a post-separation vibrating screen for separation treatment to obtain oversize products and undersize products.
The household garbage disposal method is implemented by adopting the household garbage disposal system, so that the household garbage disposal method has all the characteristics and advantages described above for the household garbage disposal system, and is not repeated herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (5)
1. A household waste disposal system, comprising:
the drying device is provided with a household garbage inlet, a first high-temperature medium inlet, a dried household garbage outlet and a dried tail gas outlet;
the pyrolysis device is provided with a dry household garbage inlet, a second high-temperature medium inlet, a pyrolysis solid product outlet, a pyrolysis oil gas outlet and a second high-temperature medium outlet, the dry household garbage inlet is connected with the dry household garbage outlet, and the second high-temperature medium outlet is connected with the first high-temperature medium inlet;
the post-separation vibrating screen is provided with a pyrolysis solid product inlet, an oversize product outlet and an undersize product outlet, and the pyrolysis solid product inlet is connected with the pyrolysis solid product outlet.
2. The household waste disposal system of claim 1, further comprising:
the first heat supply device is provided with a pyrolysis oil gas inlet, a high-temperature medium outlet and a combustion tail gas outlet, the pyrolysis oil gas inlet is connected with the pyrolysis oil gas outlet, and the high-temperature medium outlet is connected with the first high-temperature medium inlet.
3. The household waste disposal system of claim 1, further comprising:
and the second heat supply device is connected with the second high-temperature medium inlet.
4. The household waste disposal system of claim 2, further comprising:
and the tail gas treatment device is connected with the dry tail gas outlet and the combustion tail gas outlet.
5. The household garbage disposal system according to claim 1, wherein the post-sorting vibrating screen is provided with a screen hole with a pore size of 50-70 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922336965.9U CN211620413U (en) | 2019-12-23 | 2019-12-23 | Household garbage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922336965.9U CN211620413U (en) | 2019-12-23 | 2019-12-23 | Household garbage treatment system |
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| CN211620413U true CN211620413U (en) | 2020-10-02 |
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| CN201922336965.9U Active CN211620413U (en) | 2019-12-23 | 2019-12-23 | Household garbage treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019676A (en) * | 2019-12-23 | 2020-04-17 | 北京云水浩瑞环境科技有限公司 | Household garbage treatment system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019676A (en) * | 2019-12-23 | 2020-04-17 | 北京云水浩瑞环境科技有限公司 | Household garbage treatment system and method |
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